From 2dec9475a4028ba0a4ede51452f89dead2c008e1 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:47 -0700 Subject: scsi: ufs: Add checks before setting clk-gating states Clock gating can be turned on/off selectively which means the associated state information is only correct if the feature is enabled. This change makes sure that we only look at state of clk-gating if it is enabled. Link: https://lore.kernel.org/r/1596975355-39813-2-git-send-email-cang@codeaurora.org Reviewed-by: Avri Altman Reviewed-by: Hongwu Su Reviewed-by: Stanley Chu Reviewed-by: Bean Huo Reviewed-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 17 ++++++++++++++--- 1 file changed, 14 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 307622284239..5acb38ca03f9 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -1839,6 +1839,8 @@ static void ufshcd_init_clk_gating(struct ufs_hba *hba) if (!ufshcd_is_clkgating_allowed(hba)) return; + hba->clk_gating.state = CLKS_ON; + hba->clk_gating.delay_ms = 150; INIT_DELAYED_WORK(&hba->clk_gating.gate_work, ufshcd_gate_work); INIT_WORK(&hba->clk_gating.ungate_work, ufshcd_ungate_work); @@ -2541,7 +2543,8 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) err = SCSI_MLQUEUE_HOST_BUSY; goto out; } - WARN_ON(hba->clk_gating.state != CLKS_ON); + WARN_ON(ufshcd_is_clkgating_allowed(hba) && + (hba->clk_gating.state != CLKS_ON)); lrbp = &hba->lrb[tag]; @@ -8326,8 +8329,11 @@ disable_clks: /* If link is active, device ref_clk can't be switched off */ __ufshcd_setup_clocks(hba, false, true); - hba->clk_gating.state = CLKS_OFF; - trace_ufshcd_clk_gating(dev_name(hba->dev), hba->clk_gating.state); + if (ufshcd_is_clkgating_allowed(hba)) { + hba->clk_gating.state = CLKS_OFF; + trace_ufshcd_clk_gating(dev_name(hba->dev), + hba->clk_gating.state); + } /* Put the host controller in low power mode if possible */ ufshcd_hba_vreg_set_lpm(hba); @@ -8467,6 +8473,11 @@ disable_irq_and_vops_clks: if (hba->clk_scaling.is_allowed) ufshcd_suspend_clkscaling(hba); ufshcd_setup_clocks(hba, false); + if (ufshcd_is_clkgating_allowed(hba)) { + hba->clk_gating.state = CLKS_OFF; + trace_ufshcd_clk_gating(dev_name(hba->dev), + hba->clk_gating.state); + } out: hba->pm_op_in_progress = 0; if (ret) -- cgit v1.2.3 From 89dd87acd40a44de8ff3358138aedf8f73f4efc6 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:48 -0700 Subject: scsi: ufs: ufs-qcom: Fix race conditions caused by ufs_qcom_testbus_config() If ufs_qcom_dump_dbg_regs() calls ufs_qcom_testbus_config() from ufshcd_suspend/resume and/or clk gate/ungate context, pm_runtime_get_sync() and ufshcd_hold() will cause a race condition. Fix this by removing the unnecessary calls of pm_runtime_get_sync() and ufshcd_hold(). Link: https://lore.kernel.org/r/1596975355-39813-3-git-send-email-cang@codeaurora.org Reviewed-by: Hongwu Su Reviewed-by: Avri Altman Reviewed-by: Bean Huo Reviewed-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-qcom.c | 5 ----- 1 file changed, 5 deletions(-) diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index d0d75527830e..823eccfdd00a 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -1614,9 +1614,6 @@ int ufs_qcom_testbus_config(struct ufs_qcom_host *host) */ } mask <<= offset; - - pm_runtime_get_sync(host->hba->dev); - ufshcd_hold(host->hba, false); ufshcd_rmwl(host->hba, TEST_BUS_SEL, (u32)host->testbus.select_major << 19, REG_UFS_CFG1); @@ -1629,8 +1626,6 @@ int ufs_qcom_testbus_config(struct ufs_qcom_host *host) * committed before returning. */ mb(); - ufshcd_release(host->hba); - pm_runtime_put_sync(host->hba->dev); return 0; } -- cgit v1.2.3 From 423cc66b5152a309e99a3693d856157a5e4a8d39 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:49 -0700 Subject: scsi: ufs-qcom: Remove testbus dump in ufs_qcom_dump_dbg_regs Dumping testbus registers outputs a lot of information and can cause stability issues. Remove the dump code. Link: https://lore.kernel.org/r/1596975355-39813-4-git-send-email-cang@codeaurora.org Reviewed-by: Hongwu Su Reviewed-by: Avri Altman Reviewed-by: Bean Huo Reviewed-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-qcom.c | 32 -------------------------------- 1 file changed, 32 deletions(-) diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 823eccfdd00a..6b753388392b 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -1630,44 +1630,12 @@ int ufs_qcom_testbus_config(struct ufs_qcom_host *host) return 0; } -static void ufs_qcom_testbus_read(struct ufs_hba *hba) -{ - ufshcd_dump_regs(hba, UFS_TEST_BUS, 4, "UFS_TEST_BUS "); -} - -static void ufs_qcom_print_unipro_testbus(struct ufs_hba *hba) -{ - struct ufs_qcom_host *host = ufshcd_get_variant(hba); - u32 *testbus = NULL; - int i, nminor = 256, testbus_len = nminor * sizeof(u32); - - testbus = kmalloc(testbus_len, GFP_KERNEL); - if (!testbus) - return; - - host->testbus.select_major = TSTBUS_UNIPRO; - for (i = 0; i < nminor; i++) { - host->testbus.select_minor = i; - ufs_qcom_testbus_config(host); - testbus[i] = ufshcd_readl(hba, UFS_TEST_BUS); - } - print_hex_dump(KERN_ERR, "UNIPRO_TEST_BUS ", DUMP_PREFIX_OFFSET, - 16, 4, testbus, testbus_len, false); - kfree(testbus); -} - static void ufs_qcom_dump_dbg_regs(struct ufs_hba *hba) { ufshcd_dump_regs(hba, REG_UFS_SYS1CLK_1US, 16 * 4, "HCI Vendor Specific Registers "); - /* sleep a bit intermittently as we are dumping too much data */ ufs_qcom_print_hw_debug_reg_all(hba, NULL, ufs_qcom_dump_regs_wrapper); - udelay(1000); - ufs_qcom_testbus_read(hba); - udelay(1000); - ufs_qcom_print_unipro_testbus(hba); - udelay(1000); } /** -- cgit v1.2.3 From 3f8af6044713fab0aeb884e1be6bcc2cb276725e Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:50 -0700 Subject: scsi: ufs: Add some debug information to ufshcd_print_host_state() Information about the last interrupt status and timestamp is helpful when debugging system stability issues (IRQ starvation, for instance). Add this information to ufshcd_print_host_state() output. In addition, UFS device information such as model name and firmware version also comes in handy during debugging. This is printed as well. Link: https://lore.kernel.org/r/1596975355-39813-5-git-send-email-cang@codeaurora.org Reviewed-by: Avri Altman Reviewed-by: Hongwu Su Reviewed-by: Asutosh Das Reviewed-by: Stanley Chu Reviewed-by: Bean Huo Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 31 ++++++++++++++++++------------- drivers/scsi/ufs/ufshcd.h | 5 +++++ 2 files changed, 23 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 5acb38ca03f9..71c650f2054c 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -411,15 +411,6 @@ static void ufshcd_print_err_hist(struct ufs_hba *hba, static void ufshcd_print_host_regs(struct ufs_hba *hba) { ufshcd_dump_regs(hba, 0, UFSHCI_REG_SPACE_SIZE, "host_regs: "); - dev_err(hba->dev, "hba->ufs_version = 0x%x, hba->capabilities = 0x%x\n", - hba->ufs_version, hba->capabilities); - dev_err(hba->dev, - "hba->outstanding_reqs = 0x%x, hba->outstanding_tasks = 0x%x\n", - (u32)hba->outstanding_reqs, (u32)hba->outstanding_tasks); - dev_err(hba->dev, - "last_hibern8_exit_tstamp at %lld us, hibern8_exit_cnt = %d\n", - ktime_to_us(hba->ufs_stats.last_hibern8_exit_tstamp), - hba->ufs_stats.hibern8_exit_cnt); ufshcd_print_err_hist(hba, &hba->ufs_stats.pa_err, "pa_err"); ufshcd_print_err_hist(hba, &hba->ufs_stats.dl_err, "dl_err"); @@ -438,8 +429,6 @@ static void ufshcd_print_host_regs(struct ufs_hba *hba) ufshcd_print_err_hist(hba, &hba->ufs_stats.host_reset, "host_reset"); ufshcd_print_err_hist(hba, &hba->ufs_stats.task_abort, "task_abort"); - ufshcd_print_clk_freqs(hba); - ufshcd_vops_dbg_register_dump(hba); } @@ -499,6 +488,8 @@ static void ufshcd_print_tmrs(struct ufs_hba *hba, unsigned long bitmap) static void ufshcd_print_host_state(struct ufs_hba *hba) { + struct scsi_device *sdev_ufs = hba->sdev_ufs_device; + dev_err(hba->dev, "UFS Host state=%d\n", hba->ufshcd_state); dev_err(hba->dev, "outstanding reqs=0x%lx tasks=0x%lx\n", hba->outstanding_reqs, hba->outstanding_tasks); @@ -511,12 +502,24 @@ static void ufshcd_print_host_state(struct ufs_hba *hba) dev_err(hba->dev, "Auto BKOPS=%d, Host self-block=%d\n", hba->auto_bkops_enabled, hba->host->host_self_blocked); dev_err(hba->dev, "Clk gate=%d\n", hba->clk_gating.state); + dev_err(hba->dev, + "last_hibern8_exit_tstamp at %lld us, hibern8_exit_cnt=%d\n", + ktime_to_us(hba->ufs_stats.last_hibern8_exit_tstamp), + hba->ufs_stats.hibern8_exit_cnt); + dev_err(hba->dev, "last intr at %lld us, last intr status=0x%x\n", + ktime_to_us(hba->ufs_stats.last_intr_ts), + hba->ufs_stats.last_intr_status); dev_err(hba->dev, "error handling flags=0x%x, req. abort count=%d\n", hba->eh_flags, hba->req_abort_count); - dev_err(hba->dev, "Host capabilities=0x%x, caps=0x%x\n", - hba->capabilities, hba->caps); + dev_err(hba->dev, "hba->ufs_version=0x%x, Host capabilities=0x%x, caps=0x%x\n", + hba->ufs_version, hba->capabilities, hba->caps); dev_err(hba->dev, "quirks=0x%x, dev. quirks=0x%x\n", hba->quirks, hba->dev_quirks); + if (sdev_ufs) + dev_err(hba->dev, "UFS dev info: %.8s %.16s rev %.4s\n", + sdev_ufs->vendor, sdev_ufs->model, sdev_ufs->rev); + + ufshcd_print_clk_freqs(hba); } /** @@ -5951,6 +5954,8 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba) spin_lock(hba->host->host_lock); intr_status = ufshcd_readl(hba, REG_INTERRUPT_STATUS); + hba->ufs_stats.last_intr_status = intr_status; + hba->ufs_stats.last_intr_ts = ktime_get(); /* * There could be max of hba->nutrs reqs in flight and in worst case diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index b2ef18f1b746..b7f54af38b68 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -409,6 +409,8 @@ struct ufs_err_reg_hist { /** * struct ufs_stats - keeps usage/err statistics + * @last_intr_status: record the last interrupt status. + * @last_intr_ts: record the last interrupt timestamp. * @hibern8_exit_cnt: Counter to keep track of number of exits, * reset this after link-startup. * @last_hibern8_exit_tstamp: Set time after the hibern8 exit. @@ -428,6 +430,9 @@ struct ufs_err_reg_hist { * @tsk_abort: tracks task abort events */ struct ufs_stats { + u32 last_intr_status; + ktime_t last_intr_ts; + u32 hibern8_exit_cnt; ktime_t last_hibern8_exit_tstamp; -- cgit v1.2.3 From 4db7a23605973ac4a2cb24e759bebaaa82054f21 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:51 -0700 Subject: scsi: ufs: Fix concurrency of error handler and other error recovery paths Error recovery can be invoked from multiple code paths, including hibern8 enter/exit (from ufshcd_link_recovery), ufshcd_eh_host_reset_handler() and eh_work scheduled from IRQ context. Ultimately, these paths are all trying to invoke ufshcd_reset_and_restore() in either a synchronous or asynchronous manner. This causes problems: - If link recovery happens during ungate work, ufshcd_hold() would be called recursively. Although commit 53c12d0ef6fc ("scsi: ufs: fix error recovery after the hibern8 exit failure") fixed a deadlock due to recursive calls of ufshcd_hold() by adding a check of eh_in_progress into ufshcd_hold, this check allows eh_work to run in parallel while link recovery is running. - Similar concurrency can also happen when error recovery is invoked from ufshcd_eh_host_reset_handler and ufshcd_link_recovery. - Concurrency can even happen between eh_works. eh_work, currently queued on system_wq, is allowed to have multiple instances running in parallel, but we don't have proper protection for that. If any of above concurrency scenarios happen, error recovery would fail and lead ufs device and host into bad states. To fix the concurrency problem, this change queues eh_work on a single threaded workqueue and removes link recovery calls from the hibern8 enter/exit path. In addition, make use of eh_work in eh_host_reset_handler instead of calling ufshcd_reset_and_restore. This unifies the UFS error recovery mechanism. According to the UFSHCI JEDEC spec, hibern8 enter/exit error occurs when the link is broken. This essentially applies to any power mode change operations (since they all use PACP_PWR cmds in UniPro layer). So, if a power mode change operation (including AH8 enter/exit) fails, mark link state as UIC_LINK_BROKEN_STATE and schedule the eh_work. In this case, error handler needs to do a full reset and restore to recover the link back to active. Before the link state is recovered to active, ufshcd_uic_pwr_ctrl simply returns -ENOLINK to avoid more errors. Link: https://lore.kernel.org/r/1596975355-39813-6-git-send-email-cang@codeaurora.org Reviewed-by: Bean Huo Reviewed-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-sysfs.c | 1 + drivers/scsi/ufs/ufshcd.c | 268 ++++++++++++++++++++++--------------------- drivers/scsi/ufs/ufshcd.h | 9 ++ 3 files changed, 150 insertions(+), 128 deletions(-) diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c index 2d71d232a69d..02d379f00727 100644 --- a/drivers/scsi/ufs/ufs-sysfs.c +++ b/drivers/scsi/ufs/ufs-sysfs.c @@ -16,6 +16,7 @@ static const char *ufschd_uic_link_state_to_string( case UIC_LINK_OFF_STATE: return "OFF"; case UIC_LINK_ACTIVE_STATE: return "ACTIVE"; case UIC_LINK_HIBERN8_STATE: return "HIBERN8"; + case UIC_LINK_BROKEN_STATE: return "BROKEN"; default: return "UNKNOWN"; } } diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 71c650f2054c..260401643b6e 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -228,6 +228,7 @@ static int ufshcd_scale_clks(struct ufs_hba *hba, bool scale_up); static irqreturn_t ufshcd_intr(int irq, void *__hba); static int ufshcd_change_power_mode(struct ufs_hba *hba, struct ufs_pa_layer_attr *pwr_mode); +static void ufshcd_schedule_eh_work(struct ufs_hba *hba); static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba); static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba); static int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable); @@ -1571,11 +1572,6 @@ int ufshcd_hold(struct ufs_hba *hba, bool async) spin_lock_irqsave(hba->host->host_lock, flags); hba->clk_gating.active_reqs++; - if (ufshcd_eh_in_progress(hba)) { - spin_unlock_irqrestore(hba->host->host_lock, flags); - return 0; - } - start: switch (hba->clk_gating.state) { case CLKS_ON: @@ -1653,6 +1649,7 @@ static void ufshcd_gate_work(struct work_struct *work) struct ufs_hba *hba = container_of(work, struct ufs_hba, clk_gating.gate_work.work); unsigned long flags; + int ret; spin_lock_irqsave(hba->host->host_lock, flags); /* @@ -1679,8 +1676,11 @@ static void ufshcd_gate_work(struct work_struct *work) /* put the link into hibern8 mode before turning off clocks */ if (ufshcd_can_hibern8_during_gating(hba)) { - if (ufshcd_uic_hibern8_enter(hba)) { + ret = ufshcd_uic_hibern8_enter(hba); + if (ret) { hba->clk_gating.state = CLKS_ON; + dev_err(hba->dev, "%s: hibern8 enter failed %d\n", + __func__, ret); trace_ufshcd_clk_gating(dev_name(hba->dev), hba->clk_gating.state); goto out; @@ -1725,11 +1725,10 @@ static void __ufshcd_release(struct ufs_hba *hba) hba->clk_gating.active_reqs--; - if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended - || hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL - || ufshcd_any_tag_in_use(hba) || hba->outstanding_tasks - || hba->active_uic_cmd || hba->uic_async_done - || ufshcd_eh_in_progress(hba)) + if (hba->clk_gating.active_reqs || hba->clk_gating.is_suspended || + hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL || + ufshcd_any_tag_in_use(hba) || hba->outstanding_tasks || + hba->active_uic_cmd || hba->uic_async_done) return; hba->clk_gating.state = REQ_CLKS_OFF; @@ -3750,6 +3749,10 @@ static int ufshcd_uic_pwr_ctrl(struct ufs_hba *hba, struct uic_command *cmd) ufshcd_add_delay_before_dme_cmd(hba); spin_lock_irqsave(hba->host->host_lock, flags); + if (ufshcd_is_link_broken(hba)) { + ret = -ENOLINK; + goto out_unlock; + } hba->uic_async_done = &uic_async_done; if (ufshcd_readl(hba, REG_INTERRUPT_ENABLE) & UIC_COMMAND_COMPL) { ufshcd_disable_intr(hba, UIC_COMMAND_COMPL); @@ -3797,6 +3800,11 @@ out: hba->uic_async_done = NULL; if (reenable_intr) ufshcd_enable_intr(hba, UIC_COMMAND_COMPL); + if (ret) { + ufshcd_set_link_broken(hba); + ufshcd_schedule_eh_work(hba); + } +out_unlock: spin_unlock_irqrestore(hba->host->host_lock, flags); mutex_unlock(&hba->uic_cmd_mutex); @@ -3866,7 +3874,7 @@ int ufshcd_link_recovery(struct ufs_hba *hba) } EXPORT_SYMBOL_GPL(ufshcd_link_recovery); -static int __ufshcd_uic_hibern8_enter(struct ufs_hba *hba) +static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) { int ret; struct uic_command uic_cmd = {0}; @@ -3879,45 +3887,16 @@ static int __ufshcd_uic_hibern8_enter(struct ufs_hba *hba) trace_ufshcd_profile_hibern8(dev_name(hba->dev), "enter", ktime_to_us(ktime_sub(ktime_get(), start)), ret); - if (ret) { - int err; - + if (ret) dev_err(hba->dev, "%s: hibern8 enter failed. ret = %d\n", __func__, ret); - - /* - * If link recovery fails then return error code returned from - * ufshcd_link_recovery(). - * If link recovery succeeds then return -EAGAIN to attempt - * hibern8 enter retry again. - */ - err = ufshcd_link_recovery(hba); - if (err) { - dev_err(hba->dev, "%s: link recovery failed", __func__); - ret = err; - } else { - ret = -EAGAIN; - } - } else + else ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_ENTER, POST_CHANGE); return ret; } -static int ufshcd_uic_hibern8_enter(struct ufs_hba *hba) -{ - int ret = 0, retries; - - for (retries = UIC_HIBERN8_ENTER_RETRIES; retries > 0; retries--) { - ret = __ufshcd_uic_hibern8_enter(hba); - if (!ret) - goto out; - } -out: - return ret; -} - int ufshcd_uic_hibern8_exit(struct ufs_hba *hba) { struct uic_command uic_cmd = {0}; @@ -3934,7 +3913,6 @@ int ufshcd_uic_hibern8_exit(struct ufs_hba *hba) if (ret) { dev_err(hba->dev, "%s: hibern8 exit failed. ret = %d\n", __func__, ret); - ret = ufshcd_link_recovery(hba); } else { ufshcd_vops_hibern8_notify(hba, UIC_CMD_DME_HIBER_EXIT, POST_CHANGE); @@ -5557,6 +5535,24 @@ out: return err_handling; } +/* host lock must be held before calling this func */ +static inline bool ufshcd_is_saved_err_fatal(struct ufs_hba *hba) +{ + return (hba->saved_uic_err & UFSHCD_UIC_DL_PA_INIT_ERROR) || + (hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)); +} + +/* host lock must be held before calling this func */ +static inline void ufshcd_schedule_eh_work(struct ufs_hba *hba) +{ + /* handle fatal errors only when link is not in error state */ + if (hba->ufshcd_state != UFSHCD_STATE_ERROR) { + hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED; + if (queue_work(hba->eh_wq, &hba->eh_work)) + ufshcd_scsi_block_requests(hba); + } +} + /** * ufshcd_err_handler - handle UFS errors that require s/w attention * @work: pointer to work structure @@ -5573,15 +5569,23 @@ static void ufshcd_err_handler(struct work_struct *work) hba = container_of(work, struct ufs_hba, eh_work); + spin_lock_irqsave(hba->host->host_lock, flags); + if (hba->ufshcd_state == UFSHCD_STATE_ERROR || + (!(hba->saved_err || hba->saved_uic_err || hba->force_reset || + ufshcd_is_link_broken(hba)))) { + if (hba->ufshcd_state != UFSHCD_STATE_ERROR) + hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; + spin_unlock_irqrestore(hba->host->host_lock, flags); + ufshcd_scsi_unblock_requests(hba); + return; + } + ufshcd_set_eh_in_progress(hba); + spin_unlock_irqrestore(hba->host->host_lock, flags); pm_runtime_get_sync(hba->dev); ufshcd_hold(hba, false); spin_lock_irqsave(hba->host->host_lock, flags); - if (hba->ufshcd_state == UFSHCD_STATE_RESET) - goto out; - hba->ufshcd_state = UFSHCD_STATE_RESET; - ufshcd_set_eh_in_progress(hba); /* Complete requests that have door-bell cleared by h/w */ ufshcd_complete_requests(hba); @@ -5593,15 +5597,15 @@ static void ufshcd_err_handler(struct work_struct *work) /* release the lock as ufshcd_quirk_dl_nac_errors() may sleep */ ret = ufshcd_quirk_dl_nac_errors(hba); spin_lock_irqsave(hba->host->host_lock, flags); - if (!ret) + if (!ret && !hba->force_reset && ufshcd_is_link_active(hba)) goto skip_err_handling; } - if ((hba->saved_err & INT_FATAL_ERRORS) || - (hba->saved_err & UFSHCD_UIC_HIBERN8_MASK) || + + if (hba->force_reset || ufshcd_is_link_broken(hba) || + ufshcd_is_saved_err_fatal(hba) || ((hba->saved_err & UIC_ERROR) && - (hba->saved_uic_err & (UFSHCD_UIC_DL_PA_INIT_ERROR | - UFSHCD_UIC_DL_NAC_RECEIVED_ERROR | - UFSHCD_UIC_DL_TCx_REPLAY_ERROR)))) + (hba->saved_uic_err & (UFSHCD_UIC_DL_NAC_RECEIVED_ERROR | + UFSHCD_UIC_DL_TCx_REPLAY_ERROR)))) needs_reset = true; /* @@ -5655,34 +5659,25 @@ skip_pending_xfer_clear: __ufshcd_transfer_req_compl(hba, (1UL << (hba->nutrs - 1))); + hba->force_reset = false; spin_unlock_irqrestore(hba->host->host_lock, flags); err = ufshcd_reset_and_restore(hba); spin_lock_irqsave(hba->host->host_lock, flags); - if (err) { - dev_err(hba->dev, "%s: reset and restore failed\n", - __func__); - hba->ufshcd_state = UFSHCD_STATE_ERROR; - } - /* - * Inform scsi mid-layer that we did reset and allow to handle - * Unit Attention properly. - */ - scsi_report_bus_reset(hba->host, 0); - hba->saved_err = 0; - hba->saved_uic_err = 0; + if (err) + dev_err(hba->dev, "%s: reset and restore failed with err %d\n", + __func__, err); } skip_err_handling: if (!needs_reset) { - hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; + if (hba->ufshcd_state == UFSHCD_STATE_RESET) + hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; if (hba->saved_err || hba->saved_uic_err) dev_err_ratelimited(hba->dev, "%s: exit: saved_err 0x%x saved_uic_err 0x%x", __func__, hba->saved_err, hba->saved_uic_err); } ufshcd_clear_eh_in_progress(hba); - -out: spin_unlock_irqrestore(hba->host->host_lock, flags); ufshcd_scsi_unblock_requests(hba); ufshcd_release(hba); @@ -5816,6 +5811,7 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba) hba->errors, ufshcd_get_upmcrs(hba)); ufshcd_update_reg_hist(&hba->ufs_stats.auto_hibern8_err, hba->errors); + ufshcd_set_link_broken(hba); queue_eh_work = true; } @@ -5827,30 +5823,22 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba) hba->saved_err |= hba->errors; hba->saved_uic_err |= hba->uic_error; - /* handle fatal errors only when link is functional */ - if (hba->ufshcd_state == UFSHCD_STATE_OPERATIONAL) { - /* block commands from scsi mid-layer */ - ufshcd_scsi_block_requests(hba); - - hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED; + /* dump controller state before resetting */ + if (hba->saved_err & (INT_FATAL_ERRORS | UIC_ERROR)) { + bool pr_prdt = !!(hba->saved_err & + SYSTEM_BUS_FATAL_ERROR); - /* dump controller state before resetting */ - if (hba->saved_err & (INT_FATAL_ERRORS | UIC_ERROR)) { - bool pr_prdt = !!(hba->saved_err & - SYSTEM_BUS_FATAL_ERROR); - - dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", + dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", __func__, hba->saved_err, hba->saved_uic_err); - ufshcd_print_host_regs(hba); - ufshcd_print_pwr_info(hba); - ufshcd_print_tmrs(hba, hba->outstanding_tasks); - ufshcd_print_trs(hba, hba->outstanding_reqs, - pr_prdt); - } - schedule_work(&hba->eh_work); + ufshcd_print_host_regs(hba); + ufshcd_print_pwr_info(hba); + ufshcd_print_tmrs(hba, hba->outstanding_tasks); + ufshcd_print_trs(hba, hba->outstanding_reqs, + pr_prdt); } + ufshcd_schedule_eh_work(hba); retval |= IRQ_HANDLED; } /* @@ -6595,8 +6583,6 @@ static int ufshcd_host_reset_and_restore(struct ufs_hba *hba) /* Establish the link again and restore the device */ err = ufshcd_probe_hba(hba, false); - if (!err && (hba->ufshcd_state != UFSHCD_STATE_OPERATIONAL)) - err = -EIO; out: if (err) dev_err(hba->dev, "%s: Host init failed %d\n", __func__, err); @@ -6615,9 +6601,23 @@ out: */ static int ufshcd_reset_and_restore(struct ufs_hba *hba) { + u32 saved_err; + u32 saved_uic_err; int err = 0; + unsigned long flags; int retries = MAX_HOST_RESET_RETRIES; + /* + * This is a fresh start, cache and clear saved error first, + * in case new error generated during reset and restore. + */ + spin_lock_irqsave(hba->host->host_lock, flags); + saved_err = hba->saved_err; + saved_uic_err = hba->saved_uic_err; + hba->saved_err = 0; + hba->saved_uic_err = 0; + spin_unlock_irqrestore(hba->host->host_lock, flags); + do { /* Reset the attached device */ ufshcd_vops_device_reset(hba); @@ -6625,6 +6625,18 @@ static int ufshcd_reset_and_restore(struct ufs_hba *hba) err = ufshcd_host_reset_and_restore(hba); } while (err && --retries); + spin_lock_irqsave(hba->host->host_lock, flags); + /* + * Inform scsi mid-layer that we did reset and allow to handle + * Unit Attention properly. + */ + scsi_report_bus_reset(hba->host, 0); + if (err) { + hba->saved_err |= saved_err; + hba->saved_uic_err |= saved_uic_err; + } + spin_unlock_irqrestore(hba->host->host_lock, flags); + return err; } @@ -6636,48 +6648,25 @@ static int ufshcd_reset_and_restore(struct ufs_hba *hba) */ static int ufshcd_eh_host_reset_handler(struct scsi_cmnd *cmd) { - int err; + int err = SUCCESS; unsigned long flags; struct ufs_hba *hba; hba = shost_priv(cmd->device->host); - ufshcd_hold(hba, false); - /* - * Check if there is any race with fatal error handling. - * If so, wait for it to complete. Even though fatal error - * handling does reset and restore in some cases, don't assume - * anything out of it. We are just avoiding race here. - */ - do { - spin_lock_irqsave(hba->host->host_lock, flags); - if (!(work_pending(&hba->eh_work) || - hba->ufshcd_state == UFSHCD_STATE_RESET || - hba->ufshcd_state == UFSHCD_STATE_EH_SCHEDULED)) - break; - spin_unlock_irqrestore(hba->host->host_lock, flags); - dev_dbg(hba->dev, "%s: reset in progress\n", __func__); - flush_work(&hba->eh_work); - } while (1); - - hba->ufshcd_state = UFSHCD_STATE_RESET; - ufshcd_set_eh_in_progress(hba); + spin_lock_irqsave(hba->host->host_lock, flags); + hba->force_reset = true; + ufshcd_schedule_eh_work(hba); + dev_err(hba->dev, "%s: reset in progress - 1\n", __func__); spin_unlock_irqrestore(hba->host->host_lock, flags); - err = ufshcd_reset_and_restore(hba); + flush_work(&hba->eh_work); spin_lock_irqsave(hba->host->host_lock, flags); - if (!err) { - err = SUCCESS; - hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; - } else { + if (hba->ufshcd_state == UFSHCD_STATE_ERROR) err = FAILED; - hba->ufshcd_state = UFSHCD_STATE_ERROR; - } - ufshcd_clear_eh_in_progress(hba); spin_unlock_irqrestore(hba->host->host_lock, flags); - ufshcd_release(hba); return err; } @@ -7398,6 +7387,7 @@ out: static int ufshcd_probe_hba(struct ufs_hba *hba, bool async) { int ret; + unsigned long flags; ktime_t start = ktime_get(); ret = ufshcd_link_startup(hba); @@ -7462,14 +7452,17 @@ static int ufshcd_probe_hba(struct ufs_hba *hba, bool async) */ ufshcd_set_active_icc_lvl(hba); - /* set the state as operational after switching to desired gear */ - hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; - ufshcd_wb_config(hba); /* Enable Auto-Hibernate if configured */ ufshcd_auto_hibern8_enable(hba); out: + spin_lock_irqsave(hba->host->host_lock, flags); + if (ret) + hba->ufshcd_state = UFSHCD_STATE_ERROR; + else if (hba->ufshcd_state == UFSHCD_STATE_RESET) + hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; + spin_unlock_irqrestore(hba->host->host_lock, flags); trace_ufshcd_init(dev_name(hba->dev), ret, ktime_to_us(ktime_sub(ktime_get(), start)), @@ -8076,10 +8069,13 @@ static int ufshcd_link_state_transition(struct ufs_hba *hba, if (req_link_state == UIC_LINK_HIBERN8_STATE) { ret = ufshcd_uic_hibern8_enter(hba); - if (!ret) + if (!ret) { ufshcd_set_link_hibern8(hba); - else + } else { + dev_err(hba->dev, "%s: hibern8 enter failed %d\n", + __func__, ret); goto out; + } } /* * If autobkops is enabled, link can't be turned off because @@ -8095,8 +8091,11 @@ static int ufshcd_link_state_transition(struct ufs_hba *hba, * unipro. But putting the link in hibern8 is much faster. */ ret = ufshcd_uic_hibern8_enter(hba); - if (ret) + if (ret) { + dev_err(hba->dev, "%s: hibern8 enter failed %d\n", + __func__, ret); goto out; + } /* * Change controller state to "reset state" which * should also put the link in off/reset state @@ -8416,10 +8415,13 @@ static int ufshcd_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) if (ufshcd_is_link_hibern8(hba)) { ret = ufshcd_uic_hibern8_exit(hba); - if (!ret) + if (!ret) { ufshcd_set_link_active(hba); - else + } else { + dev_err(hba->dev, "%s: hibern8 exit failed %d\n", + __func__, ret); goto vendor_suspend; + } } else if (ufshcd_is_link_off(hba)) { /* * A full initialization of the host and the device is @@ -8793,6 +8795,7 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) int err; struct Scsi_Host *host = hba->host; struct device *dev = hba->dev; + char eh_wq_name[sizeof("ufs_eh_wq_00")]; if (!mmio_base) { dev_err(hba->dev, @@ -8854,6 +8857,15 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq) hba->max_pwr_info.is_valid = false; /* Initialize work queues */ + snprintf(eh_wq_name, sizeof(eh_wq_name), "ufs_eh_wq_%d", + hba->host->host_no); + hba->eh_wq = create_singlethread_workqueue(eh_wq_name); + if (!hba->eh_wq) { + dev_err(hba->dev, "%s: failed to create eh workqueue\n", + __func__); + err = -ENOMEM; + goto out_disable; + } INIT_WORK(&hba->eh_work, ufshcd_err_handler); INIT_WORK(&hba->eeh_work, ufshcd_exception_event_handler); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index b7f54af38b68..618b253e5ec8 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -90,6 +90,7 @@ enum uic_link_state { UIC_LINK_OFF_STATE = 0, /* Link powered down or disabled */ UIC_LINK_ACTIVE_STATE = 1, /* Link is in Fast/Slow/Sleep state */ UIC_LINK_HIBERN8_STATE = 2, /* Link is in Hibernate state */ + UIC_LINK_BROKEN_STATE = 3, /* Link is in broken state */ }; #define ufshcd_is_link_off(hba) ((hba)->uic_link_state == UIC_LINK_OFF_STATE) @@ -97,11 +98,15 @@ enum uic_link_state { UIC_LINK_ACTIVE_STATE) #define ufshcd_is_link_hibern8(hba) ((hba)->uic_link_state == \ UIC_LINK_HIBERN8_STATE) +#define ufshcd_is_link_broken(hba) ((hba)->uic_link_state == \ + UIC_LINK_BROKEN_STATE) #define ufshcd_set_link_off(hba) ((hba)->uic_link_state = UIC_LINK_OFF_STATE) #define ufshcd_set_link_active(hba) ((hba)->uic_link_state = \ UIC_LINK_ACTIVE_STATE) #define ufshcd_set_link_hibern8(hba) ((hba)->uic_link_state = \ UIC_LINK_HIBERN8_STATE) +#define ufshcd_set_link_broken(hba) ((hba)->uic_link_state = \ + UIC_LINK_BROKEN_STATE) #define ufshcd_set_ufs_dev_active(h) \ ((h)->curr_dev_pwr_mode = UFS_ACTIVE_PWR_MODE) @@ -616,12 +621,14 @@ struct ufs_hba_variant_params { * @intr_mask: Interrupt Mask Bits * @ee_ctrl_mask: Exception event control mask * @is_powered: flag to check if HBA is powered + * @eh_wq: Workqueue that eh_work works on * @eh_work: Worker to handle UFS errors that require s/w attention * @eeh_work: Worker to handle exception events * @errors: HBA errors * @uic_error: UFS interconnect layer error status * @saved_err: sticky error mask * @saved_uic_err: sticky UIC error mask + * @force_reset: flag to force eh_work perform a full reset * @silence_err_logs: flag to silence error logs * @dev_cmd: ufs device management command information * @last_dme_cmd_tstamp: time stamp of the last completed DME command @@ -710,6 +717,7 @@ struct ufs_hba { bool is_powered; /* Work Queues */ + struct workqueue_struct *eh_wq; struct work_struct eh_work; struct work_struct eeh_work; @@ -719,6 +727,7 @@ struct ufs_hba { u32 saved_err; u32 saved_uic_err; struct ufs_stats ufs_stats; + bool force_reset; bool silence_err_logs; /* Device management request data */ -- cgit v1.2.3 From c72e79c0ad2bd7efb1cf84f630f59daf9ba8c510 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:52 -0700 Subject: scsi: ufs: Recover HBA runtime PM error in error handler The current error handler can not recover HBA runtime PM error if ufshcd_suspend/resume has failed due to UFS errors, e.g. hibern8 enter/exit error or SSU cmd error. When this happens, error handler may fail performing a full reset and restore because error handler always assumes that power, IRQs and clocks are ready after pm_runtime_get_sync returns, but actually they are not if ufshcd_resume fails[1]. If ufschd_suspend/resume fails due to UFS errors, runtime PM framework saves the error value to dev.power.runtime_error. After that, HBA dev runtime suspend/resume would not be invoked anymore unless runtime_error is cleared[2]. In case of ufshcd_suspend/resume fails due to UFS errors, for scenario [1], error handler cannot assume anything of pm_runtime_get_sync, meaning error handler should explicitly turn ON powers, IRQs and clocks again. To get the HBA runtime PM work as regard for scenario [2], error handler can clear the runtime_error by calling pm_runtime_set_active() if full reset and restore succeeds. And, more important, if pm_runtime_set_active() returns no error, which means runtime_error has been cleared, we also need to resume those scsi devices under HBA in case any of them has failed to be resumed due to HBA runtime resume failure. This is to unblock blk_queue_enter in case there are bios waiting inside it. Link: https://lore.kernel.org/r/1596975355-39813-7-git-send-email-cang@codeaurora.org Reviewed-by: Bean Huo Reviewed-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 108 ++++++++++++++++++++++++++++++++++++++++++---- 1 file changed, 99 insertions(+), 9 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 260401643b6e..ed24582fe472 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -15,6 +15,7 @@ #include #include #include +#include #include "ufshcd.h" #include "ufs_quirks.h" #include "unipro.h" @@ -229,6 +230,10 @@ static irqreturn_t ufshcd_intr(int irq, void *__hba); static int ufshcd_change_power_mode(struct ufs_hba *hba, struct ufs_pa_layer_attr *pwr_mode); static void ufshcd_schedule_eh_work(struct ufs_hba *hba); +static int ufshcd_setup_hba_vreg(struct ufs_hba *hba, bool on); +static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on); +static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba, + struct ufs_vreg *vreg); static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba); static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba); static int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable); @@ -5553,6 +5558,84 @@ static inline void ufshcd_schedule_eh_work(struct ufs_hba *hba) } } +static void ufshcd_err_handling_prepare(struct ufs_hba *hba) +{ + pm_runtime_get_sync(hba->dev); + if (pm_runtime_suspended(hba->dev)) { + /* + * Don't assume anything of pm_runtime_get_sync(), if + * resume fails, irq and clocks can be OFF, and powers + * can be OFF or in LPM. + */ + ufshcd_setup_hba_vreg(hba, true); + ufshcd_enable_irq(hba); + ufshcd_setup_vreg(hba, true); + ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq); + ufshcd_config_vreg_hpm(hba, hba->vreg_info.vccq2); + ufshcd_hold(hba, false); + if (!ufshcd_is_clkgating_allowed(hba)) + ufshcd_setup_clocks(hba, true); + ufshcd_release(hba); + ufshcd_vops_resume(hba, UFS_RUNTIME_PM); + } else { + ufshcd_hold(hba, false); + if (hba->clk_scaling.is_allowed) { + cancel_work_sync(&hba->clk_scaling.suspend_work); + cancel_work_sync(&hba->clk_scaling.resume_work); + ufshcd_suspend_clkscaling(hba); + } + } +} + +static void ufshcd_err_handling_unprepare(struct ufs_hba *hba) +{ + ufshcd_release(hba); + if (hba->clk_scaling.is_allowed) + ufshcd_resume_clkscaling(hba); + pm_runtime_put(hba->dev); +} + +static inline bool ufshcd_err_handling_should_stop(struct ufs_hba *hba) +{ + return (hba->ufshcd_state == UFSHCD_STATE_ERROR || + (!(hba->saved_err || hba->saved_uic_err || hba->force_reset || + ufshcd_is_link_broken(hba)))); +} + +#ifdef CONFIG_PM +static void ufshcd_recover_pm_error(struct ufs_hba *hba) +{ + struct Scsi_Host *shost = hba->host; + struct scsi_device *sdev; + struct request_queue *q; + int ret; + + /* + * Set RPM status of hba device to RPM_ACTIVE, + * this also clears its runtime error. + */ + ret = pm_runtime_set_active(hba->dev); + /* + * If hba device had runtime error, we also need to resume those + * scsi devices under hba in case any of them has failed to be + * resumed due to hba runtime resume failure. This is to unblock + * blk_queue_enter in case there are bios waiting inside it. + */ + if (!ret) { + shost_for_each_device(sdev, shost) { + q = sdev->request_queue; + if (q->dev && (q->rpm_status == RPM_SUSPENDED || + q->rpm_status == RPM_SUSPENDING)) + pm_request_resume(q->dev); + } + } +} +#else +static inline void ufshcd_recover_pm_error(struct ufs_hba *hba) +{ +} +#endif + /** * ufshcd_err_handler - handle UFS errors that require s/w attention * @work: pointer to work structure @@ -5570,9 +5653,7 @@ static void ufshcd_err_handler(struct work_struct *work) hba = container_of(work, struct ufs_hba, eh_work); spin_lock_irqsave(hba->host->host_lock, flags); - if (hba->ufshcd_state == UFSHCD_STATE_ERROR || - (!(hba->saved_err || hba->saved_uic_err || hba->force_reset || - ufshcd_is_link_broken(hba)))) { + if (ufshcd_err_handling_should_stop(hba)) { if (hba->ufshcd_state != UFSHCD_STATE_ERROR) hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; spin_unlock_irqrestore(hba->host->host_lock, flags); @@ -5581,10 +5662,17 @@ static void ufshcd_err_handler(struct work_struct *work) } ufshcd_set_eh_in_progress(hba); spin_unlock_irqrestore(hba->host->host_lock, flags); - pm_runtime_get_sync(hba->dev); - ufshcd_hold(hba, false); - + ufshcd_err_handling_prepare(hba); spin_lock_irqsave(hba->host->host_lock, flags); + /* + * A full reset and restore might have happened after preparation + * is finished, double check whether we should stop. + */ + if (ufshcd_err_handling_should_stop(hba)) { + if (hba->ufshcd_state != UFSHCD_STATE_ERROR) + hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; + goto out; + } hba->ufshcd_state = UFSHCD_STATE_RESET; /* Complete requests that have door-bell cleared by h/w */ @@ -5662,10 +5750,12 @@ skip_pending_xfer_clear: hba->force_reset = false; spin_unlock_irqrestore(hba->host->host_lock, flags); err = ufshcd_reset_and_restore(hba); - spin_lock_irqsave(hba->host->host_lock, flags); if (err) dev_err(hba->dev, "%s: reset and restore failed with err %d\n", __func__, err); + else + ufshcd_recover_pm_error(hba); + spin_lock_irqsave(hba->host->host_lock, flags); } skip_err_handling: @@ -5677,11 +5767,11 @@ skip_err_handling: __func__, hba->saved_err, hba->saved_uic_err); } +out: ufshcd_clear_eh_in_progress(hba); spin_unlock_irqrestore(hba->host->host_lock, flags); ufshcd_scsi_unblock_requests(hba); - ufshcd_release(hba); - pm_runtime_put_sync(hba->dev); + ufshcd_err_handling_unprepare(hba); } /** -- cgit v1.2.3 From c3be8d1ee1bff7c6f7e588d2a87f076148f40326 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:53 -0700 Subject: scsi: ufs: Move dumps in IRQ handler to error handler Performing dumps in the IRQ handler causes system stability issues. Move dumps to the error handler and only print basic host registers here. Link: https://lore.kernel.org/r/1596975355-39813-8-git-send-email-cang@codeaurora.org Reviewed-by: Bean Huo Reviewed-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 23 +++++++++++++++-------- 1 file changed, 15 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index ed24582fe472..602c74699b5d 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -5696,6 +5696,19 @@ static void ufshcd_err_handler(struct work_struct *work) UFSHCD_UIC_DL_TCx_REPLAY_ERROR)))) needs_reset = true; + if (hba->saved_err & (INT_FATAL_ERRORS | UIC_ERROR | + UFSHCD_UIC_HIBERN8_MASK)) { + bool pr_prdt = !!(hba->saved_err & SYSTEM_BUS_FATAL_ERROR); + + spin_unlock_irqrestore(hba->host->host_lock, flags); + ufshcd_print_host_state(hba); + ufshcd_print_pwr_info(hba); + ufshcd_print_host_regs(hba); + ufshcd_print_tmrs(hba, hba->outstanding_tasks); + ufshcd_print_trs(hba, hba->outstanding_reqs, pr_prdt); + spin_lock_irqsave(hba->host->host_lock, flags); + } + /* * if host reset is required then skip clearing the pending * transfers forcefully because they will get cleared during @@ -5915,18 +5928,12 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba) /* dump controller state before resetting */ if (hba->saved_err & (INT_FATAL_ERRORS | UIC_ERROR)) { - bool pr_prdt = !!(hba->saved_err & - SYSTEM_BUS_FATAL_ERROR); - dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", __func__, hba->saved_err, hba->saved_uic_err); - - ufshcd_print_host_regs(hba); + ufshcd_dump_regs(hba, 0, UFSHCI_REG_SPACE_SIZE, + "host_regs: "); ufshcd_print_pwr_info(hba); - ufshcd_print_tmrs(hba, hba->outstanding_tasks); - ufshcd_print_trs(hba, hba->outstanding_reqs, - pr_prdt); } ufshcd_schedule_eh_work(hba); retval |= IRQ_HANDLED; -- cgit v1.2.3 From 5586dd8ea250ab0851caeab6f461a9dbf57c806f Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:54 -0700 Subject: scsi: ufs: Fix a race condition between error handler and runtime PM ops The current IRQ handler blocks SCSI requests before scheduling eh_work, when error handler calls pm_runtime_get_sync, if ufshcd_suspend/resume sends a SCSI cmd, most likely the SSU cmd, since SCSI requests are blocked, pm_runtime_get_sync() will never return because ufshcd_suspend/resume is blocked by the SCSI cmd. - In queuecommand path, hba->ufshcd_state check and ufshcd_send_command should stay under the same spin lock. This is to make sure that no more commands leak into doorbell after hba->ufshcd_state is changed. - Don't block SCSI requests before error handler starts to run, let error handler block SCSI requests when it is ready to start error recovery. - Don't let SCSI layer keep requeuing the SCSI cmds sent from HBA runtime PM ops, let them pass or fail them. Let them pass if eh_work is scheduled due to non-fatal errors. Fail them if eh_work is scheduled due to fatal errors, otherwise the cmds may eventually time out since UFS is in bad state, which gets error handler blocked for too long. If we fail the SCSI cmds sent from HBA runtime PM ops, HBA runtime PM ops fails too, but it does not hurt since error handler can recover HBA runtime PM error. Link: https://lore.kernel.org/r/1596975355-39813-9-git-send-email-cang@codeaurora.org Reviewed-by: Bean Huo Reviewed-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 85 ++++++++++++++++++++++++++++------------------- 1 file changed, 51 insertions(+), 34 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 602c74699b5d..9ebb5cd31ce3 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -126,7 +126,8 @@ enum { UFSHCD_STATE_RESET, UFSHCD_STATE_ERROR, UFSHCD_STATE_OPERATIONAL, - UFSHCD_STATE_EH_SCHEDULED, + UFSHCD_STATE_EH_SCHEDULED_FATAL, + UFSHCD_STATE_EH_SCHEDULED_NON_FATAL, }; /* UFSHCD error handling flags */ @@ -2515,34 +2516,6 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) if (!down_read_trylock(&hba->clk_scaling_lock)) return SCSI_MLQUEUE_HOST_BUSY; - spin_lock_irqsave(hba->host->host_lock, flags); - switch (hba->ufshcd_state) { - case UFSHCD_STATE_OPERATIONAL: - break; - case UFSHCD_STATE_EH_SCHEDULED: - case UFSHCD_STATE_RESET: - err = SCSI_MLQUEUE_HOST_BUSY; - goto out_unlock; - case UFSHCD_STATE_ERROR: - set_host_byte(cmd, DID_ERROR); - cmd->scsi_done(cmd); - goto out_unlock; - default: - dev_WARN_ONCE(hba->dev, 1, "%s: invalid state %d\n", - __func__, hba->ufshcd_state); - set_host_byte(cmd, DID_BAD_TARGET); - cmd->scsi_done(cmd); - goto out_unlock; - } - - /* if error handling is in progress, don't issue commands */ - if (ufshcd_eh_in_progress(hba)) { - set_host_byte(cmd, DID_ERROR); - cmd->scsi_done(cmd); - goto out_unlock; - } - spin_unlock_irqrestore(hba->host->host_lock, flags); - hba->req_abort_count = 0; err = ufshcd_hold(hba, true); @@ -2578,11 +2551,51 @@ static int ufshcd_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmd) /* Make sure descriptors are ready before ringing the doorbell */ wmb(); - /* issue command to the controller */ spin_lock_irqsave(hba->host->host_lock, flags); + switch (hba->ufshcd_state) { + case UFSHCD_STATE_OPERATIONAL: + case UFSHCD_STATE_EH_SCHEDULED_NON_FATAL: + break; + case UFSHCD_STATE_EH_SCHEDULED_FATAL: + /* + * pm_runtime_get_sync() is used at error handling preparation + * stage. If a scsi cmd, e.g. the SSU cmd, is sent from hba's + * PM ops, it can never be finished if we let SCSI layer keep + * retrying it, which gets err handler stuck forever. Neither + * can we let the scsi cmd pass through, because UFS is in bad + * state, the scsi cmd may eventually time out, which will get + * err handler blocked for too long. So, just fail the scsi cmd + * sent from PM ops, err handler can recover PM error anyways. + */ + if (hba->pm_op_in_progress) { + hba->force_reset = true; + set_host_byte(cmd, DID_BAD_TARGET); + goto out_compl_cmd; + } + fallthrough; + case UFSHCD_STATE_RESET: + err = SCSI_MLQUEUE_HOST_BUSY; + goto out_compl_cmd; + case UFSHCD_STATE_ERROR: + set_host_byte(cmd, DID_ERROR); + goto out_compl_cmd; + default: + dev_WARN_ONCE(hba->dev, 1, "%s: invalid state %d\n", + __func__, hba->ufshcd_state); + set_host_byte(cmd, DID_BAD_TARGET); + goto out_compl_cmd; + } ufshcd_send_command(hba, tag); -out_unlock: spin_unlock_irqrestore(hba->host->host_lock, flags); + goto out; + +out_compl_cmd: + scsi_dma_unmap(lrbp->cmd); + lrbp->cmd = NULL; + spin_unlock_irqrestore(hba->host->host_lock, flags); + ufshcd_release(hba); + if (!err) + cmd->scsi_done(cmd); out: up_read(&hba->clk_scaling_lock); return err; @@ -5552,9 +5565,12 @@ static inline void ufshcd_schedule_eh_work(struct ufs_hba *hba) { /* handle fatal errors only when link is not in error state */ if (hba->ufshcd_state != UFSHCD_STATE_ERROR) { - hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED; - if (queue_work(hba->eh_wq, &hba->eh_work)) - ufshcd_scsi_block_requests(hba); + if (hba->force_reset || ufshcd_is_link_broken(hba) || + ufshcd_is_saved_err_fatal(hba)) + hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_FATAL; + else + hba->ufshcd_state = UFSHCD_STATE_EH_SCHEDULED_NON_FATAL; + queue_work(hba->eh_wq, &hba->eh_work); } } @@ -5664,6 +5680,7 @@ static void ufshcd_err_handler(struct work_struct *work) spin_unlock_irqrestore(hba->host->host_lock, flags); ufshcd_err_handling_prepare(hba); spin_lock_irqsave(hba->host->host_lock, flags); + ufshcd_scsi_block_requests(hba); /* * A full reset and restore might have happened after preparation * is finished, double check whether we should stop. -- cgit v1.2.3 From 8bb2dde069d860e7ea379862a7d0e8ee01cec5e9 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Sun, 9 Aug 2020 05:15:55 -0700 Subject: scsi: ufs: Properly release resources if a task is aborted successfully In current UFS task abort hook, namely ufshcd_abort(), if one task is aborted successfully, clk_gating.active_reqs held by this task is not decreased, which makes clk_gating.active_reqs stay above zero forever, thus clock gating would never happen. Instead of releasing resources of one task "manually", use the existing func __ufshcd_transfer_req_compl(). This change also eliminates a possible race of scsi_dma_unmap() from the real completion in IRQ handler path. Link: https://lore.kernel.org/r/1596975355-39813-10-git-send-email-cang@codeaurora.org Fixes: 1ab27c9cf8b6 ("ufs: Add support for clock gating") CC: Stanley Chu Reviewed-by: Stanley Chu Reviewed-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 9ebb5cd31ce3..efb40b1b95b4 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -6636,11 +6636,8 @@ static int ufshcd_abort(struct scsi_cmnd *cmd) goto out; } - scsi_dma_unmap(cmd); - spin_lock_irqsave(host->host_lock, flags); - ufshcd_outstanding_req_clear(hba, tag); - hba->lrb[tag].cmd = NULL; + __ufshcd_transfer_req_compl(hba, (1UL << tag)); spin_unlock_irqrestore(host->host_lock, flags); out: -- cgit v1.2.3 From f09219e48b401c961f9d2f8f97a0c0b55b7894e1 Mon Sep 17 00:00:00 2001 From: Suganath Prabu S Date: Thu, 30 Jul 2020 13:33:43 +0530 Subject: scsi: mpt3sas: Memset config_cmds.reply buffer with zeros Currently config_cmds.reply buffer is not memset to zero before posting config page request message. In some cases, for the current config request, the previous config reply is getting processed and we will observe PageType mismatch between request to reply buffer. It will be difficult to debug this type of issue and it confuses by thinking that HBA Firmware itself posted the wrong config reply. So it is better to memset the config_cmds.reply buffer with zeros before issuing the config request. Link: https://lore.kernel.org/r/1596096229-3341-2-git-send-email-suganath-prabu.subramani@broadcom.com Signed-off-by: Suganath Prabu S Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_config.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_config.c b/drivers/scsi/mpt3sas/mpt3sas_config.c index 11026e0ef3d0..4a0ddc7c95e4 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_config.c +++ b/drivers/scsi/mpt3sas/mpt3sas_config.c @@ -371,7 +371,7 @@ _config_request(struct MPT3SAS_ADAPTER *ioc, Mpi2ConfigRequest_t } r = 0; - memset(mpi_reply, 0, sizeof(Mpi2ConfigReply_t)); + memset(ioc->config_cmds.reply, 0, sizeof(Mpi2ConfigReply_t)); ioc->config_cmds.status = MPT3_CMD_PENDING; config_request = mpt3sas_base_get_msg_frame(ioc, smid); ioc->config_cmds.smid = smid; -- cgit v1.2.3 From af6ec1eee5ed680df0b5e0e49aa6b2673ef6e237 Mon Sep 17 00:00:00 2001 From: Suganath Prabu S Date: Thu, 30 Jul 2020 13:33:44 +0530 Subject: scsi: mpt3sas: Dump system registers for debugging When controller fails to transition to READY state during driver probe, dump the system interface register set. This will give snapshot of the firmware status for debugging driver load issues. Link: https://lore.kernel.org/r/1596096229-3341-3-git-send-email-suganath-prabu.subramani@broadcom.com Signed-off-by: Suganath Prabu S Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.c | 20 ++++++++++++++++++++ 1 file changed, 20 insertions(+) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 1d64524cd863..712f7f1cb219 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -5618,6 +5618,23 @@ _base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, u32 ioc_state, int timeout) return current_state; } +/** + * _base_dump_reg_set - This function will print hexdump of register set. + * @ioc: per adapter object + * + * Returns nothing. + */ +static inline void +_base_dump_reg_set(struct MPT3SAS_ADAPTER *ioc) +{ + unsigned int i, sz = 256; + u32 __iomem *reg = (u32 __iomem *)ioc->chip; + + ioc_info(ioc, "System Register set:\n"); + for (i = 0; i < (sz / sizeof(u32)); i++) + pr_info("%08x: %08x\n", (i * 4), readl(®[i])); +} + /** * _base_wait_for_doorbell_int - waiting for controller interrupt(generated by * a write to the doorbell) @@ -6797,6 +6814,7 @@ _base_diag_reset(struct MPT3SAS_ADAPTER *ioc) if (count++ > 20) { ioc_info(ioc, "Stop writing magic sequence after 20 retries\n"); + _base_dump_reg_set(ioc); goto out; } @@ -6825,6 +6843,7 @@ _base_diag_reset(struct MPT3SAS_ADAPTER *ioc) if (host_diagnostic == 0xFFFFFFFF) { ioc_info(ioc, "Invalid host diagnostic register value\n"); + _base_dump_reg_set(ioc); goto out; } if (!(host_diagnostic & MPI2_DIAG_RESET_ADAPTER)) @@ -6859,6 +6878,7 @@ _base_diag_reset(struct MPT3SAS_ADAPTER *ioc) if (ioc_state) { ioc_err(ioc, "%s: failed going to ready state (ioc_state=0x%x)\n", __func__, ioc_state); + _base_dump_reg_set(ioc); goto out; } -- cgit v1.2.3 From 9e73ed2e4cf51878ad2e5c5cff6146844f5960b7 Mon Sep 17 00:00:00 2001 From: Suganath Prabu S Date: Thu, 30 Jul 2020 13:33:45 +0530 Subject: scsi: mpt3sas: Cancel the running work during host reset It is not recommended to issue back-to-back host reset without any delay. However, if someone issues back-to-back host reset then we observe that target devices get unregistered and re-register with SML. And if OS drive is behind the HBA when it gets unregistered, then file-system goes into read-only mode. Normally during host reset, driver marks accessible target devices as responding and triggers the event MPT3SAS_REMOVE_UNRESPONDING_DEVICES to remove any non-responding devices through FW worker thread. While processing this event, driver unregisters the non-responding devices and clears the responding flag for all the devices. Currently, during host reset, driver is cancelling only those Firmware event works which are pending in Firmware event workqueue. It is not cancelling work which is currently running. Change the driver to cancel all events. Link: https://lore.kernel.org/r/1596096229-3341-4-git-send-email-suganath-prabu.subramani@broadcom.com Signed-off-by: Suganath Prabu S Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.h | 4 ++++ drivers/scsi/mpt3sas/mpt3sas_scsih.c | 17 ++++++++++++----- 2 files changed, 16 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index 4ff876c31272..2718207dfe17 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -1036,6 +1036,8 @@ typedef void (*MPT3SAS_FLUSH_RUNNING_CMDS)(struct MPT3SAS_ADAPTER *ioc); * @firmware_event_thread: "" * @fw_event_lock: * @fw_event_list: list of fw events + * @current_evet: current processing firmware event + * @fw_event_cleanup: set to one while cleaning up the fw events * @aen_event_read_flag: event log was read * @broadcast_aen_busy: broadcast aen waiting to be serviced * @shost_recovery: host reset in progress @@ -1217,6 +1219,8 @@ struct MPT3SAS_ADAPTER { struct workqueue_struct *firmware_event_thread; spinlock_t fw_event_lock; struct list_head fw_event_list; + struct fw_event_work *current_event; + u8 fw_events_cleanup; /* misc flags */ int aen_event_read_flag; diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 08fc4b381056..66b29d4923f3 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -3323,11 +3323,13 @@ _scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc) { struct fw_event_work *fw_event; - if (list_empty(&ioc->fw_event_list) || + if ((list_empty(&ioc->fw_event_list) && !ioc->current_event) || !ioc->firmware_event_thread || in_interrupt()) return; - while ((fw_event = dequeue_next_fw_event(ioc))) { + ioc->fw_events_cleanup = 1; + while ((fw_event = dequeue_next_fw_event(ioc)) || + (fw_event = ioc->current_event)) { /* * Wait on the fw_event to complete. If this returns 1, then * the event was never executed, and we need a put for the @@ -3341,6 +3343,7 @@ _scsih_fw_event_cleanup_queue(struct MPT3SAS_ADAPTER *ioc) fw_event_work_put(fw_event); } + ioc->fw_events_cleanup = 0; } /** @@ -9421,11 +9424,13 @@ mpt3sas_scsih_reset_done_handler(struct MPT3SAS_ADAPTER *ioc) static void _mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event) { + ioc->current_event = fw_event; _scsih_fw_event_del_from_list(ioc, fw_event); /* the queue is being flushed so ignore this event */ if (ioc->remove_host || ioc->pci_error_recovery) { fw_event_work_put(fw_event); + ioc->current_event = NULL; return; } @@ -9439,10 +9444,10 @@ _mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event) while (scsi_host_in_recovery(ioc->shost) || ioc->shost_recovery) { /* - * If we're unloading, bail. Otherwise, this can become - * an infinite loop. + * If we're unloading or cancelling the work, bail. + * Otherwise, this can become an infinite loop. */ - if (ioc->remove_host) + if (ioc->remove_host || ioc->fw_events_cleanup) goto out; ssleep(1); } @@ -9503,11 +9508,13 @@ _mpt3sas_fw_work(struct MPT3SAS_ADAPTER *ioc, struct fw_event_work *fw_event) break; case MPI2_EVENT_PCIE_TOPOLOGY_CHANGE_LIST: _scsih_pcie_topology_change_event(ioc, fw_event); + ioc->current_event = NULL; return; break; } out: fw_event_work_put(fw_event); + ioc->current_event = NULL; } /** -- cgit v1.2.3 From 5afa9d4444070ec313672bc7009315a951c28200 Mon Sep 17 00:00:00 2001 From: Suganath Prabu S Date: Thu, 30 Jul 2020 13:33:46 +0530 Subject: scsi: mpt3sas: Rename and export interrupt mask/unmask functions Rename Function _base_unmask_interrupts() to mpt3sas_base_unmask_interrupts() and _base_mask_interrupts() to mpt3sas_base_mask_interrupts(). Also add function declarion to mpt3sas_base.h Link: https://lore.kernel.org/r/1596096229-3341-5-git-send-email-suganath-prabu.subramani@broadcom.com Signed-off-by: Suganath Prabu S Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.c | 24 +++++++++++------------- drivers/scsi/mpt3sas/mpt3sas_base.h | 2 ++ 2 files changed, 13 insertions(+), 13 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 712f7f1cb219..7f0de6a96b88 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -129,8 +129,6 @@ _base_wait_on_iocstate(struct MPT3SAS_ADAPTER *ioc, static int _base_get_ioc_facts(struct MPT3SAS_ADAPTER *ioc); static void -_base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc); -static void _base_clear_outstanding_commands(struct MPT3SAS_ADAPTER *ioc); /** @@ -680,7 +678,7 @@ _base_fault_reset_work(struct work_struct *work) ioc->shost_recovery = 1; spin_unlock_irqrestore( &ioc->ioc_reset_in_progress_lock, flags); - _base_mask_interrupts(ioc); + mpt3sas_base_mask_interrupts(ioc); _base_clear_outstanding_commands(ioc); } @@ -1466,13 +1464,13 @@ _base_get_cb_idx(struct MPT3SAS_ADAPTER *ioc, u16 smid) } /** - * _base_mask_interrupts - disable interrupts + * mpt3sas_base_mask_interrupts - disable interrupts * @ioc: per adapter object * * Disabling ResetIRQ, Reply and Doorbell Interrupts */ -static void -_base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc) +void +mpt3sas_base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc) { u32 him_register; @@ -1484,13 +1482,13 @@ _base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc) } /** - * _base_unmask_interrupts - enable interrupts + * mpt3sas_base_unmask_interrupts - enable interrupts * @ioc: per adapter object * * Enabling only Reply Interrupts */ -static void -_base_unmask_interrupts(struct MPT3SAS_ADAPTER *ioc) +void +mpt3sas_base_unmask_interrupts(struct MPT3SAS_ADAPTER *ioc) { u32 him_register; @@ -3372,7 +3370,7 @@ mpt3sas_base_map_resources(struct MPT3SAS_ADAPTER *ioc) goto out_fail; } - _base_mask_interrupts(ioc); + mpt3sas_base_mask_interrupts(ioc); r = _base_get_ioc_facts(ioc); if (r) { @@ -7121,7 +7119,7 @@ _base_make_ioc_operational(struct MPT3SAS_ADAPTER *ioc) skip_init_reply_post_host_index: - _base_unmask_interrupts(ioc); + mpt3sas_base_unmask_interrupts(ioc); if (ioc->hba_mpi_version_belonged != MPI2_VERSION) { r = _base_display_fwpkg_version(ioc); @@ -7170,7 +7168,7 @@ mpt3sas_base_free_resources(struct MPT3SAS_ADAPTER *ioc) /* synchronizing freeing resource with pci_access_mutex lock */ mutex_lock(&ioc->pci_access_mutex); if (ioc->chip_phys && ioc->chip) { - _base_mask_interrupts(ioc); + mpt3sas_base_mask_interrupts(ioc); ioc->shost_recovery = 1; _base_make_ioc_ready(ioc, SOFT_RESET); ioc->shost_recovery = 0; @@ -7736,7 +7734,7 @@ mpt3sas_base_hard_reset_handler(struct MPT3SAS_ADAPTER *ioc, } _base_pre_reset_handler(ioc); mpt3sas_wait_for_commands_to_complete(ioc); - _base_mask_interrupts(ioc); + mpt3sas_base_mask_interrupts(ioc); r = _base_make_ioc_ready(ioc, type); if (r) goto out; diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index 2718207dfe17..d3062de217c6 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -1529,6 +1529,8 @@ __le32 mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc, void *mpt3sas_base_get_pcie_sgl(struct MPT3SAS_ADAPTER *ioc, u16 smid); dma_addr_t mpt3sas_base_get_pcie_sgl_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid); void mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc); +void mpt3sas_base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc); +void mpt3sas_base_unmask_interrupts(struct MPT3SAS_ADAPTER *ioc); void mpt3sas_base_put_smid_fast_path(struct MPT3SAS_ADAPTER *ioc, u16 smid, u16 handle); -- cgit v1.2.3 From 521e9c0b62860ed3b6899c771c1ab82b51009311 Mon Sep 17 00:00:00 2001 From: Suganath Prabu S Date: Thu, 30 Jul 2020 13:33:47 +0530 Subject: scsi: mpt3sas: Add functions to check if any cmd is outstanding on Target and LUN Add helper functions to check whether any SCSI command is outstanding on particular Target, LUN device. Also add function parameters 'channel', 'id' to function mpt3sas_scsih_issue_tm(). Link: https://lore.kernel.org/r/1596096229-3341-6-git-send-email-suganath-prabu.subramani@broadcom.com Signed-off-by: Suganath Prabu S Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.h | 9 ++-- drivers/scsi/mpt3sas/mpt3sas_ctl.c | 6 ++- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 92 +++++++++++++++++++++++++++++++----- 3 files changed, 88 insertions(+), 19 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index d3062de217c6..bd892230a87b 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -1610,11 +1610,12 @@ void mpt3sas_scsih_clear_outstanding_scsi_tm_commands( struct MPT3SAS_ADAPTER *ioc); void mpt3sas_scsih_reset_done_handler(struct MPT3SAS_ADAPTER *ioc); -int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun, - u8 type, u16 smid_task, u16 msix_task, u8 timeout, u8 tr_method); +int mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, + uint channel, uint id, u64 lun, u8 type, u16 smid_task, + u16 msix_task, u8 timeout, u8 tr_method); int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, - u64 lun, u8 type, u16 smid_task, u16 msix_task, - u8 timeout, u8 tr_method); + uint channel, uint id, u64 lun, u8 type, u16 smid_task, + u16 msix_task, u8 timeout, u8 tr_method); void mpt3sas_scsih_set_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle); void mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle); diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c index 43260306668c..194ac9d03bc9 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c @@ -1109,13 +1109,15 @@ _ctl_do_mpt_command(struct MPT3SAS_ADAPTER *ioc, struct mpt3_ioctl_command karg, pcie_device->device_info)))) mpt3sas_scsih_issue_locked_tm(ioc, le16_to_cpu(mpi_request->FunctionDependent1), - 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, + 0, 0, 0, + MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0, pcie_device->reset_timeout, MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE); else mpt3sas_scsih_issue_locked_tm(ioc, le16_to_cpu(mpi_request->FunctionDependent1), - 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, + 0, 0, 0, + MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0, 30, MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET); } else mpt3sas_base_hard_reset_handler(ioc, FORCE_BIG_HAMMER); diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 66b29d4923f3..ce1225301812 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -1512,6 +1512,66 @@ _scsih_is_nvme_pciescsi_device(u32 device_info) return 0; } +/** + * _scsih_scsi_lookup_find_by_target - search for matching channel:id + * @ioc: per adapter object + * @id: target id + * @channel: channel + * Context: This function will acquire ioc->scsi_lookup_lock. + * + * This will search for a matching channel:id in the scsi_lookup array, + * returning 1 if found. + */ +static u8 +_scsih_scsi_lookup_find_by_target(struct MPT3SAS_ADAPTER *ioc, int id, + int channel) +{ + int smid; + struct scsi_cmnd *scmd; + + for (smid = 1; + smid <= ioc->shost->can_queue; smid++) { + scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid); + if (!scmd) + continue; + if (scmd->device->id == id && + scmd->device->channel == channel) + return 1; + } + return 0; +} + +/** + * _scsih_scsi_lookup_find_by_lun - search for matching channel:id:lun + * @ioc: per adapter object + * @id: target id + * @lun: lun number + * @channel: channel + * Context: This function will acquire ioc->scsi_lookup_lock. + * + * This will search for a matching channel:id:lun in the scsi_lookup array, + * returning 1 if found. + */ +static u8 +_scsih_scsi_lookup_find_by_lun(struct MPT3SAS_ADAPTER *ioc, int id, + unsigned int lun, int channel) +{ + int smid; + struct scsi_cmnd *scmd; + + for (smid = 1; smid <= ioc->shost->can_queue; smid++) { + + scmd = mpt3sas_scsih_scsi_lookup_get(ioc, smid); + if (!scmd) + continue; + if (scmd->device->id == id && + scmd->device->channel == channel && + scmd->device->lun == lun) + return 1; + } + return 0; +} + /** * mpt3sas_scsih_scsi_lookup_get - returns scmd entry * @ioc: per adapter object @@ -2704,6 +2764,8 @@ mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle) * mpt3sas_scsih_issue_tm - main routine for sending tm requests * @ioc: per adapter struct * @handle: device handle + * @channel: the channel assigned by the OS + * @id: the id assigned by the OS * @lun: lun number * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h) * @smid_task: smid assigned to the task @@ -2720,8 +2782,9 @@ mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle) * Return: SUCCESS or FAILED. */ int -mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, u64 lun, - u8 type, u16 smid_task, u16 msix_task, u8 timeout, u8 tr_method) +mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel, + uint id, u64 lun, u8 type, u16 smid_task, u16 msix_task, + u8 timeout, u8 tr_method) { Mpi2SCSITaskManagementRequest_t *mpi_request; Mpi2SCSITaskManagementReply_t *mpi_reply; @@ -2826,14 +2889,14 @@ out: } int mpt3sas_scsih_issue_locked_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, - u64 lun, u8 type, u16 smid_task, u16 msix_task, - u8 timeout, u8 tr_method) + uint channel, uint id, u64 lun, u8 type, u16 smid_task, + u16 msix_task, u8 timeout, u8 tr_method) { int ret; mutex_lock(&ioc->tm_cmds.mutex); - ret = mpt3sas_scsih_issue_tm(ioc, handle, lun, type, smid_task, - msix_task, timeout, tr_method); + ret = mpt3sas_scsih_issue_tm(ioc, handle, channel, id, lun, type, + smid_task, msix_task, timeout, tr_method); mutex_unlock(&ioc->tm_cmds.mutex); return ret; @@ -2980,7 +3043,8 @@ scsih_abort(struct scsi_cmnd *scmd) if (pcie_device && (!ioc->tm_custom_handling) && (!(mpt3sas_scsih_is_pcie_scsi_device(pcie_device->device_info)))) timeout = ioc->nvme_abort_timeout; - r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->lun, + r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel, + scmd->device->id, scmd->device->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, st->smid, st->msix_io, timeout, 0); /* Command must be cleared after abort */ @@ -3056,7 +3120,8 @@ scsih_dev_reset(struct scsi_cmnd *scmd) } else tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; - r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->lun, + r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel, + scmd->device->id, scmd->device->lun, MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET, 0, 0, tr_timeout, tr_method); /* Check for busy commands after reset */ @@ -3134,7 +3199,8 @@ scsih_target_reset(struct scsi_cmnd *scmd) tr_method = MPI26_SCSITASKMGMT_MSGFLAGS_PROTOCOL_LVL_RST_PCIE; } else tr_method = MPI2_SCSITASKMGMT_MSGFLAGS_LINK_RESET; - r = mpt3sas_scsih_issue_locked_tm(ioc, handle, 0, + r = mpt3sas_scsih_issue_locked_tm(ioc, handle, scmd->device->channel, + scmd->device->id, 0, MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET, 0, 0, tr_timeout, tr_method); /* Check for busy commands after reset */ @@ -7530,7 +7596,7 @@ _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc, goto out; spin_unlock_irqrestore(&ioc->scsi_lookup_lock, flags); - r = mpt3sas_scsih_issue_tm(ioc, handle, lun, + r = mpt3sas_scsih_issue_tm(ioc, handle, 0, 0, lun, MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK, st->smid, st->msix_io, 30, 0); if (r == FAILED) { @@ -7571,9 +7637,9 @@ _scsih_sas_broadcast_primitive_event(struct MPT3SAS_ADAPTER *ioc, if (ioc->shost_recovery) goto out_no_lock; - r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->lun, - MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, st->smid, - st->msix_io, 30, 0); + r = mpt3sas_scsih_issue_tm(ioc, handle, sdev->channel, sdev->id, + sdev->lun, MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK, + st->smid, st->msix_io, 30, 0); if (r == FAILED || st->cb_idx != 0xFF) { sdev_printk(KERN_WARNING, sdev, "mpt3sas_scsih_issue_tm: ABORT_TASK: FAILED : " -- cgit v1.2.3 From 711a923c14d9a48d15a30a2c085184954bf04931 Mon Sep 17 00:00:00 2001 From: Suganath Prabu S Date: Thu, 30 Jul 2020 13:33:48 +0530 Subject: scsi: mpt3sas: Postprocessing of target and LUN reset If driver has not received the interrupt for the aborted SCSI command before processing the TM reply, driver polls all the reply descriptor pools looking for the reply for the aborted SCSI command before marking TM as FAILED. If it finds the reply, then it marks the TM as SUCCESS otherwise it marks it FAILED. scsih_tm_cmd_map_status() checks whether TM has aborted the timed out SCSI command or not. If TM has aborted the IO, then it returns SUCCESS else it returns FAILED. Link: https://lore.kernel.org/r/1596096229-3341-7-git-send-email-suganath-prabu.subramani@broadcom.com Signed-off-by: Suganath Prabu S Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.c | 6 +- drivers/scsi/mpt3sas/mpt3sas_base.h | 2 +- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 136 ++++++++++++++++++++++++++++++++++- 3 files changed, 139 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 7f0de6a96b88..53a835b37fa9 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -1785,12 +1785,14 @@ _base_is_controller_msix_enabled(struct MPT3SAS_ADAPTER *ioc) /** * mpt3sas_base_sync_reply_irqs - flush pending MSIX interrupts * @ioc: per adapter object + * @poll: poll over reply descriptor pools incase interrupt for + * timed-out SCSI command got delayed * Context: non ISR conext * * Called when a Task Management request has completed. */ void -mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc) +mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc, u8 poll) { struct adapter_reply_queue *reply_q; @@ -1820,6 +1822,8 @@ mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc) } synchronize_irq(pci_irq_vector(ioc->pdev, reply_q->msix_index)); } + if (poll) + _base_process_reply_queue(reply_q); } /** diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index bd892230a87b..87b50f59c2eb 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -1528,7 +1528,7 @@ __le32 mpt3sas_base_get_sense_buffer_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid); void *mpt3sas_base_get_pcie_sgl(struct MPT3SAS_ADAPTER *ioc, u16 smid); dma_addr_t mpt3sas_base_get_pcie_sgl_dma(struct MPT3SAS_ADAPTER *ioc, u16 smid); -void mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc); +void mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc, u8 poll); void mpt3sas_base_mask_interrupts(struct MPT3SAS_ADAPTER *ioc); void mpt3sas_base_unmask_interrupts(struct MPT3SAS_ADAPTER *ioc); diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index ce1225301812..6fe931b14095 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -2760,6 +2760,96 @@ mpt3sas_scsih_clear_tm_flag(struct MPT3SAS_ADAPTER *ioc, u16 handle) } } +/** + * scsih_tm_cmd_map_status - map the target reset & LUN reset TM status + * @ioc - per adapter object + * @channel - the channel assigned by the OS + * @id: the id assigned by the OS + * @lun: lun number + * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h) + * @smid_task: smid assigned to the task + * + * Look whether TM has aborted the timed out SCSI command, if + * TM has aborted the IO then return SUCCESS else return FAILED. + */ +static int +scsih_tm_cmd_map_status(struct MPT3SAS_ADAPTER *ioc, uint channel, + uint id, uint lun, u8 type, u16 smid_task) +{ + + if (smid_task <= ioc->shost->can_queue) { + switch (type) { + case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET: + if (!(_scsih_scsi_lookup_find_by_target(ioc, + id, channel))) + return SUCCESS; + break; + case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET: + case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET: + if (!(_scsih_scsi_lookup_find_by_lun(ioc, id, + lun, channel))) + return SUCCESS; + break; + default: + return SUCCESS; + } + } else if (smid_task == ioc->scsih_cmds.smid) { + if ((ioc->scsih_cmds.status & MPT3_CMD_COMPLETE) || + (ioc->scsih_cmds.status & MPT3_CMD_NOT_USED)) + return SUCCESS; + } else if (smid_task == ioc->ctl_cmds.smid) { + if ((ioc->ctl_cmds.status & MPT3_CMD_COMPLETE) || + (ioc->ctl_cmds.status & MPT3_CMD_NOT_USED)) + return SUCCESS; + } + + return FAILED; +} + +/** + * scsih_tm_post_processing - post processing of target & LUN reset + * @ioc - per adapter object + * @handle: device handle + * @channel - the channel assigned by the OS + * @id: the id assigned by the OS + * @lun: lun number + * @type: MPI2_SCSITASKMGMT_TASKTYPE__XXX (defined in mpi2_init.h) + * @smid_task: smid assigned to the task + * + * Post processing of target & LUN reset. Due to interrupt latency + * issue it possible that interrupt for aborted IO might not be + * received yet. So before returning failure status, poll the + * reply descriptor pools for the reply of timed out SCSI command. + * Return FAILED status if reply for timed out is not received + * otherwise return SUCCESS. + */ +static int +scsih_tm_post_processing(struct MPT3SAS_ADAPTER *ioc, u16 handle, + uint channel, uint id, uint lun, u8 type, u16 smid_task) +{ + int rc; + + rc = scsih_tm_cmd_map_status(ioc, channel, id, lun, type, smid_task); + if (rc == SUCCESS) + return rc; + + ioc_info(ioc, + "Poll ReplyDescriptor queues for completion of" + " smid(%d), task_type(0x%02x), handle(0x%04x)\n", + smid_task, type, handle); + + /* + * Due to interrupt latency issues, driver may receive interrupt for + * TM first and then for aborted SCSI IO command. So, poll all the + * ReplyDescriptor pools before returning the FAILED status to SML. + */ + mpt3sas_base_mask_interrupts(ioc); + mpt3sas_base_sync_reply_irqs(ioc, 1); + mpt3sas_base_unmask_interrupts(ioc); + + return scsih_tm_cmd_map_status(ioc, channel, id, lun, type, smid_task); +} + /** * mpt3sas_scsih_issue_tm - main routine for sending tm requests * @ioc: per adapter struct @@ -2788,6 +2878,7 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel, { Mpi2SCSITaskManagementRequest_t *mpi_request; Mpi2SCSITaskManagementReply_t *mpi_reply; + Mpi25SCSIIORequest_t *request; u16 smid = 0; u32 ioc_state; int rc; @@ -2843,7 +2934,9 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel, mpi_request->Function = MPI2_FUNCTION_SCSI_TASK_MGMT; mpi_request->DevHandle = cpu_to_le16(handle); mpi_request->TaskType = type; - mpi_request->MsgFlags = tr_method; + if (type == MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK || + type == MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK) + mpi_request->MsgFlags = tr_method; mpi_request->TaskMID = cpu_to_le16(smid_task); int_to_scsilun(lun, (struct scsi_lun *)mpi_request->LUN); mpt3sas_scsih_set_tm_flag(ioc, handle); @@ -2863,7 +2956,7 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel, } /* sync IRQs in case those were busy during flush. */ - mpt3sas_base_sync_reply_irqs(ioc); + mpt3sas_base_sync_reply_irqs(ioc, 0); if (ioc->tm_cmds.status & MPT3_CMD_REPLY_VALID) { mpt3sas_trigger_master(ioc, MASTER_TRIGGER_TASK_MANAGMENT); @@ -2880,7 +2973,44 @@ mpt3sas_scsih_issue_tm(struct MPT3SAS_ADAPTER *ioc, u16 handle, uint channel, sizeof(Mpi2SCSITaskManagementRequest_t)/4); } } - rc = SUCCESS; + + switch (type) { + case MPI2_SCSITASKMGMT_TASKTYPE_ABORT_TASK: + rc = SUCCESS; + /* + * If DevHandle filed in smid_task's entry of request pool + * doesn't match with device handle on which this task abort + * TM is received then it means that TM has successfully + * aborted the timed out command. Since smid_task's entry in + * request pool will be memset to zero once the timed out + * command is returned to the SML. If the command is not + * aborted then smid_task’s entry won’t be cleared and it + * will have same DevHandle value on which this task abort TM + * is received and driver will return the TM status as FAILED. + */ + request = mpt3sas_base_get_msg_frame(ioc, smid_task); + if (le16_to_cpu(request->DevHandle) != handle) + break; + + ioc_info(ioc, "Task abort tm failed: handle(0x%04x)," + "timeout(%d) tr_method(0x%x) smid(%d) msix_index(%d)\n", + handle, timeout, tr_method, smid_task, msix_task); + rc = FAILED; + break; + + case MPI2_SCSITASKMGMT_TASKTYPE_TARGET_RESET: + case MPI2_SCSITASKMGMT_TASKTYPE_ABRT_TASK_SET: + case MPI2_SCSITASKMGMT_TASKTYPE_LOGICAL_UNIT_RESET: + rc = scsih_tm_post_processing(ioc, handle, channel, id, lun, + type, smid_task); + break; + case MPI2_SCSITASKMGMT_TASKTYPE_QUERY_TASK: + rc = SUCCESS; + break; + default: + rc = FAILED; + break; + } out: mpt3sas_scsih_clear_tm_flag(ioc, handle); -- cgit v1.2.3 From 0491bdc7ee1ec212bdb2fac8ed375283922fd828 Mon Sep 17 00:00:00 2001 From: Suganath Prabu S Date: Thu, 30 Jul 2020 13:33:49 +0530 Subject: scsi: mpt3sas: Update driver version to 35.100.00.00 Updated driver version to 35.100.00.00 Link: https://lore.kernel.org/r/1596096229-3341-8-git-send-email-suganath-prabu.subramani@broadcom.com Signed-off-by: Suganath Prabu S Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.h b/drivers/scsi/mpt3sas/mpt3sas_base.h index 87b50f59c2eb..bc8beb10f3fc 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.h +++ b/drivers/scsi/mpt3sas/mpt3sas_base.h @@ -76,8 +76,8 @@ #define MPT3SAS_DRIVER_NAME "mpt3sas" #define MPT3SAS_AUTHOR "Avago Technologies " #define MPT3SAS_DESCRIPTION "LSI MPT Fusion SAS 3.0 Device Driver" -#define MPT3SAS_DRIVER_VERSION "34.100.00.00" -#define MPT3SAS_MAJOR_VERSION 34 +#define MPT3SAS_DRIVER_VERSION "35.100.00.00" +#define MPT3SAS_MAJOR_VERSION 35 #define MPT3SAS_MINOR_VERSION 100 #define MPT3SAS_BUILD_VERSION 0 #define MPT3SAS_RELEASE_VERSION 00 -- cgit v1.2.3 From ce14379350645189dbe6c618169ce4a2fab6aeb1 Mon Sep 17 00:00:00 2001 From: Kevin Barnett Date: Fri, 31 Jul 2020 16:01:11 -0500 Subject: scsi: smartpqi: Identify physical devices without issuing INQUIRY Eliminate issuing INQUIRYs to problematic devices by using information provided by controller. Link: https://lore.kernel.org/r/159622927172.30579.3960527536810532094.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Reviewed-by: Martin Wilck Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 1 + drivers/scsi/smartpqi/smartpqi_init.c | 173 +++++++++++++++++----------------- 2 files changed, 87 insertions(+), 87 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index 1129fe7a27ed..48ca2ee06972 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -1255,6 +1255,7 @@ struct bmic_sense_subsystem_info { #define SA_DEVICE_TYPE_SATA 0x1 #define SA_DEVICE_TYPE_SAS 0x2 #define SA_DEVICE_TYPE_EXPANDER_SMP 0x5 +#define SA_DEVICE_TYPE_SES 0x6 #define SA_DEVICE_TYPE_CONTROLLER 0x7 #define SA_DEVICE_TYPE_NVME 0x9 diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index bd38c8cea56e..f4dc8c857ec9 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1300,33 +1300,59 @@ no_buffer: device->volume_offline = volume_offline; } -#define PQI_INQUIRY_PAGE0_RETRIES 3 +static int pqi_get_physical_device_info(struct pqi_ctrl_info *ctrl_info, + struct pqi_scsi_dev *device, + struct bmic_identify_physical_device *id_phys) +{ + int rc; -static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, + memset(id_phys, 0, sizeof(*id_phys)); + + rc = pqi_identify_physical_device(ctrl_info, device, + id_phys, sizeof(*id_phys)); + if (rc) { + device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; + return rc; + } + + scsi_sanitize_inquiry_string(&id_phys->model[0], 8); + scsi_sanitize_inquiry_string(&id_phys->model[8], 16); + + memcpy(device->vendor, &id_phys->model[0], sizeof(device->vendor)); + memcpy(device->model, &id_phys->model[8], sizeof(device->model)); + + device->box_index = id_phys->box_index; + device->phys_box_on_bus = id_phys->phys_box_on_bus; + device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0]; + device->queue_depth = + get_unaligned_le16(&id_phys->current_queue_depth_limit); + device->active_path_index = id_phys->active_path_number; + device->path_map = id_phys->redundant_path_present_map; + memcpy(&device->box, + &id_phys->alternate_paths_phys_box_on_port, + sizeof(device->box)); + memcpy(&device->phys_connector, + &id_phys->alternate_paths_phys_connector, + sizeof(device->phys_connector)); + device->bay = id_phys->phys_bay_in_box; + + return 0; +} + +static int pqi_get_logical_device_info(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device) { int rc; u8 *buffer; - unsigned int retries; - - if (device->is_expander_smp_device) - return 0; buffer = kmalloc(64, GFP_KERNEL); if (!buffer) return -ENOMEM; /* Send an inquiry to the device to see what it is. */ - for (retries = 0;;) { - rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, - buffer, 64); - if (rc == 0) - break; - if (pqi_is_logical_device(device) || - rc != PQI_CMD_STATUS_ABORTED || - ++retries > PQI_INQUIRY_PAGE0_RETRIES) - goto out; - } + rc = pqi_scsi_inquiry(ctrl_info, device->scsi3addr, 0, buffer, 64); + if (rc) + goto out; scsi_sanitize_inquiry_string(&buffer[8], 8); scsi_sanitize_inquiry_string(&buffer[16], 16); @@ -1335,7 +1361,7 @@ static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, memcpy(device->vendor, &buffer[8], sizeof(device->vendor)); memcpy(device->model, &buffer[16], sizeof(device->model)); - if (pqi_is_logical_device(device) && device->devtype == TYPE_DISK) { + if (device->devtype == TYPE_DISK) { if (device->is_external_raid_device) { device->raid_level = SA_RAID_UNKNOWN; device->volume_status = CISS_LV_OK; @@ -1353,36 +1379,21 @@ out: return rc; } -static void pqi_get_physical_disk_info(struct pqi_ctrl_info *ctrl_info, +static int pqi_get_device_info(struct pqi_ctrl_info *ctrl_info, struct pqi_scsi_dev *device, struct bmic_identify_physical_device *id_phys) { int rc; - memset(id_phys, 0, sizeof(*id_phys)); + if (device->is_expander_smp_device) + return 0; - rc = pqi_identify_physical_device(ctrl_info, device, - id_phys, sizeof(*id_phys)); - if (rc) { - device->queue_depth = PQI_PHYSICAL_DISK_DEFAULT_MAX_QUEUE_DEPTH; - return; - } + if (pqi_is_logical_device(device)) + rc = pqi_get_logical_device_info(ctrl_info, device); + else + rc = pqi_get_physical_device_info(ctrl_info, device, id_phys); - device->box_index = id_phys->box_index; - device->phys_box_on_bus = id_phys->phys_box_on_bus; - device->phy_connected_dev_type = id_phys->phy_connected_dev_type[0]; - device->queue_depth = - get_unaligned_le16(&id_phys->current_queue_depth_limit); - device->device_type = id_phys->device_type; - device->active_path_index = id_phys->active_path_number; - device->path_map = id_phys->redundant_path_present_map; - memcpy(&device->box, - &id_phys->alternate_paths_phys_box_on_port, - sizeof(device->box)); - memcpy(&device->phys_connector, - &id_phys->alternate_paths_phys_connector, - sizeof(device->phys_connector)); - device->bay = id_phys->phys_bay_in_box; + return rc; } static void pqi_show_volume_status(struct pqi_ctrl_info *ctrl_info, @@ -1872,9 +1883,10 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, /* Expose any new devices. */ list_for_each_entry_safe(device, next, &add_list, add_list_entry) { if (!pqi_is_device_added(device)) { - pqi_dev_info(ctrl_info, "added", device); rc = pqi_add_device(ctrl_info, device); - if (rc) { + if (rc == 0) { + pqi_dev_info(ctrl_info, "added", device); + } else { dev_warn(&ctrl_info->pci_dev->dev, "scsi %d:%d:%d:%d addition failed, device not added\n", ctrl_info->scsi_host->host_no, @@ -1886,36 +1898,19 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, } } -static bool pqi_is_supported_device(struct pqi_scsi_dev *device) +static inline bool pqi_is_supported_device(struct pqi_scsi_dev *device) { - bool is_supported; - - if (device->is_expander_smp_device) - return true; - - is_supported = false; - - switch (device->devtype) { - case TYPE_DISK: - case TYPE_ZBC: - case TYPE_TAPE: - case TYPE_MEDIUM_CHANGER: - case TYPE_ENCLOSURE: - is_supported = true; - break; - case TYPE_RAID: - /* - * Only support the HBA controller itself as a RAID - * controller. If it's a RAID controller other than - * the HBA itself (an external RAID controller, for - * example), we don't support it. - */ - if (pqi_is_hba_lunid(device->scsi3addr)) - is_supported = true; - break; - } + /* + * Only support the HBA controller itself as a RAID + * controller. If it's a RAID controller other than + * the HBA itself (an external RAID controller, for + * example), we don't support it. + */ + if (device->device_type == SA_DEVICE_TYPE_CONTROLLER && + !pqi_is_hba_lunid(device->scsi3addr)) + return false; - return is_supported; + return true; } static inline bool pqi_skip_device(u8 *scsi3addr) @@ -1934,16 +1929,10 @@ static inline void pqi_mask_device(u8 *scsi3addr) static inline bool pqi_is_device_with_sas_address(struct pqi_scsi_dev *device) { - if (!device->is_physical_device) - return false; - - if (device->is_expander_smp_device) - return true; - - switch (device->devtype) { - case TYPE_DISK: - case TYPE_ZBC: - case TYPE_ENCLOSURE: + switch (device->device_type) { + case SA_DEVICE_TYPE_SAS: + case SA_DEVICE_TYPE_EXPANDER_SMP: + case SA_DEVICE_TYPE_SES: return true; } @@ -2085,16 +2074,19 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) memcpy(device->scsi3addr, scsi3addr, sizeof(device->scsi3addr)); device->is_physical_device = is_physical_device; if (is_physical_device) { - if (phys_lun_ext_entry->device_type == - SA_DEVICE_TYPE_EXPANDER_SMP) + device->device_type = phys_lun_ext_entry->device_type; + if (device->device_type == SA_DEVICE_TYPE_EXPANDER_SMP) device->is_expander_smp_device = true; } else { device->is_external_raid_device = pqi_is_external_raid_addr(scsi3addr); } + if (!pqi_is_supported_device(device)) + continue; + /* Gather information about the device. */ - rc = pqi_get_device_info(ctrl_info, device); + rc = pqi_get_device_info(ctrl_info, device, id_phys); if (rc == -ENOMEM) { dev_warn(&ctrl_info->pci_dev->dev, "%s\n", out_of_memory_msg); @@ -2115,9 +2107,6 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) continue; } - if (!pqi_is_supported_device(device)) - continue; - pqi_assign_bus_target_lun(device); if (device->is_physical_device) { @@ -2129,7 +2118,6 @@ static int pqi_update_scsi_devices(struct pqi_ctrl_info *ctrl_info) device->aio_handle = phys_lun_ext_entry->aio_handle; } - pqi_get_physical_disk_info(ctrl_info, device, id_phys); } else { memcpy(device->volume_id, log_lun_ext_entry->volume_id, sizeof(device->volume_id)); @@ -5831,6 +5819,16 @@ static int pqi_map_queues(struct Scsi_Host *shost) ctrl_info->pci_dev, 0); } +static int pqi_slave_configure(struct scsi_device *sdev) +{ + struct pqi_scsi_dev *device; + + device = sdev->hostdata; + device->devtype = sdev->type; + + return 0; +} + static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) { @@ -6501,6 +6499,7 @@ static struct scsi_host_template pqi_driver_template = { .eh_device_reset_handler = pqi_eh_device_reset_handler, .ioctl = pqi_ioctl, .slave_alloc = pqi_slave_alloc, + .slave_configure = pqi_slave_configure, .map_queues = pqi_map_queues, .sdev_attrs = pqi_sdev_attrs, .shost_attrs = pqi_shost_attrs, -- cgit v1.2.3 From 3af06083ba216e7b40c798b23aa2004d79c747d4 Mon Sep 17 00:00:00 2001 From: Mahesh Rajashekhara Date: Fri, 31 Jul 2020 16:01:21 -0500 Subject: scsi: smartpqi: Add id support for SmartRAID 3152-8i VID_9005, DID_028F, SVID_9005 and SDID_080A. Link: https://lore.kernel.org/r/159622928143.30579.14769183842894725454.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Reviewed-by: Kevin Barnett Reviewed-by: Martin Wilck Signed-off-by: Mahesh Rajashekhara Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index f4dc8c857ec9..659b937bd508 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -8298,6 +8298,10 @@ static const struct pci_device_id pqi_pci_id_table[] = { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, PCI_VENDOR_ID_ADAPTEC2, 0x0809) }, + { + PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, + PCI_VENDOR_ID_ADAPTEC2, 0x080a) + }, { PCI_DEVICE_SUB(PCI_VENDOR_ID_ADAPTEC2, 0x028f, PCI_VENDOR_ID_ADAPTEC2, 0x0900) -- cgit v1.2.3 From 244ca45e15cffe38ce465957d70c861b324961a4 Mon Sep 17 00:00:00 2001 From: Mahesh Rajashekhara Date: Fri, 31 Jul 2020 16:01:27 -0500 Subject: scsi: smartpqi: Update logical volume size after expansion Have OS rescan after logical volume expansion to reflect new size. Link: https://lore.kernel.org/r/159622928727.30579.298277463169866711.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Reviewed-by: Martin Wilck Signed-off-by: Mahesh Rajashekhara Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 1 + drivers/scsi/smartpqi/smartpqi_init.c | 21 ++++++++++++++++----- 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index 48ca2ee06972..c2382eedbbc3 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -927,6 +927,7 @@ struct pqi_scsi_dev { u8 new_device : 1; u8 keep_device : 1; u8 volume_offline : 1; + u8 rescan : 1; bool aio_enabled; /* only valid for physical disks */ bool in_reset; bool in_remove; diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 659b937bd508..8f37b983b27d 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1688,6 +1688,11 @@ static void pqi_scsi_update_device(struct pqi_scsi_dev *existing_device, existing_device->target_lun_valid = true; } + if ((existing_device->volume_status == CISS_LV_QUEUED_FOR_EXPANSION || + existing_device->volume_status == CISS_LV_UNDERGOING_EXPANSION) && + new_device->volume_status == CISS_LV_OK) + existing_device->rescan = true; + /* By definition, the scsi3addr and wwid fields are already the same. */ existing_device->is_physical_device = new_device->is_physical_device; @@ -1872,11 +1877,17 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, */ list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { - if (device->sdev && device->queue_depth != - device->advertised_queue_depth) { - device->advertised_queue_depth = device->queue_depth; - scsi_change_queue_depth(device->sdev, - device->advertised_queue_depth); + if (device->sdev) { + if (device->queue_depth != + device->advertised_queue_depth) { + device->advertised_queue_depth = device->queue_depth; + scsi_change_queue_depth(device->sdev, + device->advertised_queue_depth); + } + if (device->rescan) { + scsi_rescan_device(&device->sdev->sdev_gendev); + device->rescan = false; + } } } -- cgit v1.2.3 From 9e68cccc8ef7206f0bccd590378d0dca8f9b4f57 Mon Sep 17 00:00:00 2001 From: Kevin Barnett Date: Fri, 31 Jul 2020 16:01:33 -0500 Subject: scsi: smartpqi: Avoid crashing kernel for controller issues Eliminate kernel panics when getting invalid responses from controller. Take controller offline instead of causing kernel panics. Link: https://lore.kernel.org/r/159622929306.30579.16523318707596752828.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Reviewed-by: Prasad Munirathnam Reviewed-by: Martin Wilck Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 2 +- drivers/scsi/smartpqi/smartpqi_init.c | 101 ++++++++++++++++++++++------------ 2 files changed, 68 insertions(+), 35 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index c2382eedbbc3..631306d347db 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -359,7 +359,7 @@ struct pqi_event_response { struct pqi_iu_header header; u8 event_type; u8 reserved2 : 7; - u8 request_acknowlege : 1; + u8 request_acknowledge : 1; __le16 event_id; __le32 additional_event_id; union { diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 8f37b983b27d..2d4a9aab883c 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -542,8 +542,7 @@ static int pqi_build_raid_path_request(struct pqi_ctrl_info *ctrl_info, put_unaligned_be16(cdb_length, &cdb[7]); break; default: - dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", - cmd); + dev_err(&ctrl_info->pci_dev->dev, "unknown command 0x%c\n", cmd); break; } @@ -2461,7 +2460,6 @@ static int pqi_raid_bypass_submit_scsi_cmd(struct pqi_ctrl_info *ctrl_info, offload_to_mirror = (offload_to_mirror >= layout_map_count - 1) ? 0 : offload_to_mirror + 1; - WARN_ON(offload_to_mirror >= layout_map_count); device->offload_to_mirror = offload_to_mirror; /* * Avoid direct use of device->offload_to_mirror within this @@ -2914,10 +2912,14 @@ static int pqi_interpret_task_management_response( return rc; } -static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, - struct pqi_queue_group *queue_group) +static inline void pqi_invalid_response(struct pqi_ctrl_info *ctrl_info) +{ + pqi_take_ctrl_offline(ctrl_info); +} + +static int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, struct pqi_queue_group *queue_group) { - unsigned int num_responses; + int num_responses; pqi_index_t oq_pi; pqi_index_t oq_ci; struct pqi_io_request *io_request; @@ -2929,6 +2931,13 @@ static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, while (1) { oq_pi = readl(queue_group->oq_pi); + if (oq_pi >= ctrl_info->num_elements_per_oq) { + pqi_invalid_response(ctrl_info); + dev_err(&ctrl_info->pci_dev->dev, + "I/O interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n", + oq_pi, ctrl_info->num_elements_per_oq - 1, oq_ci); + return -1; + } if (oq_pi == oq_ci) break; @@ -2937,10 +2946,22 @@ static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, (oq_ci * PQI_OPERATIONAL_OQ_ELEMENT_LENGTH); request_id = get_unaligned_le16(&response->request_id); - WARN_ON(request_id >= ctrl_info->max_io_slots); + if (request_id >= ctrl_info->max_io_slots) { + pqi_invalid_response(ctrl_info); + dev_err(&ctrl_info->pci_dev->dev, + "request ID in response (%u) out of range (0-%u): producer index: %u consumer index: %u\n", + request_id, ctrl_info->max_io_slots - 1, oq_pi, oq_ci); + return -1; + } io_request = &ctrl_info->io_request_pool[request_id]; - WARN_ON(atomic_read(&io_request->refcount) == 0); + if (atomic_read(&io_request->refcount) == 0) { + pqi_invalid_response(ctrl_info); + dev_err(&ctrl_info->pci_dev->dev, + "request ID in response (%u) does not match an outstanding I/O request: producer index: %u consumer index: %u\n", + request_id, oq_pi, oq_ci); + return -1; + } switch (response->header.iu_type) { case PQI_RESPONSE_IU_RAID_PATH_IO_SUCCESS: @@ -2970,24 +2991,22 @@ static unsigned int pqi_process_io_intr(struct pqi_ctrl_info *ctrl_info, io_request->error_info = ctrl_info->error_buffer + (get_unaligned_le16(&response->error_index) * PQI_ERROR_BUFFER_ELEMENT_LENGTH); - pqi_process_io_error(response->header.iu_type, - io_request); + pqi_process_io_error(response->header.iu_type, io_request); break; default: + pqi_invalid_response(ctrl_info); dev_err(&ctrl_info->pci_dev->dev, - "unexpected IU type: 0x%x\n", - response->header.iu_type); - break; + "unexpected IU type: 0x%x: producer index: %u consumer index: %u\n", + response->header.iu_type, oq_pi, oq_ci); + return -1; } - io_request->io_complete_callback(io_request, - io_request->context); + io_request->io_complete_callback(io_request, io_request->context); /* * Note that the I/O request structure CANNOT BE TOUCHED after * returning from the I/O completion callback! */ - oq_ci = (oq_ci + 1) % ctrl_info->num_elements_per_oq; } @@ -3300,9 +3319,9 @@ static void pqi_ofa_capture_event_payload(struct pqi_event *event, } } -static unsigned int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) +static int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) { - unsigned int num_events; + int num_events; pqi_index_t oq_pi; pqi_index_t oq_ci; struct pqi_event_queue *event_queue; @@ -3316,26 +3335,31 @@ static unsigned int pqi_process_event_intr(struct pqi_ctrl_info *ctrl_info) while (1) { oq_pi = readl(event_queue->oq_pi); + if (oq_pi >= PQI_NUM_EVENT_QUEUE_ELEMENTS) { + pqi_invalid_response(ctrl_info); + dev_err(&ctrl_info->pci_dev->dev, + "event interrupt: producer index (%u) out of range (0-%u): consumer index: %u\n", + oq_pi, PQI_NUM_EVENT_QUEUE_ELEMENTS - 1, oq_ci); + return -1; + } + if (oq_pi == oq_ci) break; num_events++; - response = event_queue->oq_element_array + - (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH); + response = event_queue->oq_element_array + (oq_ci * PQI_EVENT_OQ_ELEMENT_LENGTH); event_index = pqi_event_type_to_event_index(response->event_type); - if (event_index >= 0) { - if (response->request_acknowlege) { - event = &ctrl_info->events[event_index]; - event->pending = true; - event->event_type = response->event_type; - event->event_id = response->event_id; - event->additional_event_id = - response->additional_event_id; + if (event_index >= 0 && response->request_acknowledge) { + event = &ctrl_info->events[event_index]; + event->pending = true; + event->event_type = response->event_type; + event->event_id = response->event_id; + event->additional_event_id = response->additional_event_id; + if (event->event_type == PQI_EVENT_TYPE_OFA) pqi_ofa_capture_event_payload(event, response); - } } oq_ci = (oq_ci + 1) % PQI_NUM_EVENT_QUEUE_ELEMENTS; @@ -3450,7 +3474,8 @@ static irqreturn_t pqi_irq_handler(int irq, void *data) { struct pqi_ctrl_info *ctrl_info; struct pqi_queue_group *queue_group; - unsigned int num_responses_handled; + int num_io_responses_handled; + int num_events_handled; queue_group = data; ctrl_info = queue_group->ctrl_info; @@ -3458,17 +3483,25 @@ static irqreturn_t pqi_irq_handler(int irq, void *data) if (!pqi_is_valid_irq(ctrl_info)) return IRQ_NONE; - num_responses_handled = pqi_process_io_intr(ctrl_info, queue_group); + num_io_responses_handled = pqi_process_io_intr(ctrl_info, queue_group); + if (num_io_responses_handled < 0) + goto out; - if (irq == ctrl_info->event_irq) - num_responses_handled += pqi_process_event_intr(ctrl_info); + if (irq == ctrl_info->event_irq) { + num_events_handled = pqi_process_event_intr(ctrl_info); + if (num_events_handled < 0) + goto out; + } else { + num_events_handled = 0; + } - if (num_responses_handled) + if (num_io_responses_handled + num_events_handled > 0) atomic_inc(&ctrl_info->num_interrupts); pqi_start_io(ctrl_info, queue_group, RAID_PATH, NULL); pqi_start_io(ctrl_info, queue_group, AIO_PATH, NULL); +out: return IRQ_HANDLED; } -- cgit v1.2.3 From 4d15ad3813010acca004e475b54f221a9c721c33 Mon Sep 17 00:00:00 2001 From: Kevin Barnett Date: Fri, 31 Jul 2020 16:01:38 -0500 Subject: scsi: smartpqi: Support device deletion via sysfs Support device deletion via sysfs. I.e: echo 1 > /sys/block/sd/device/delete Link: https://lore.kernel.org/r/159622929885.30579.2727491506675011534.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Reviewed-by: Martin Wilck Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 92 ++++++++++++++++------------------- 1 file changed, 43 insertions(+), 49 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 2d4a9aab883c..6a8dcc130677 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1531,11 +1531,10 @@ static inline void pqi_remove_device(struct pqi_ctrl_info *ctrl_info, pqi_device_remove_start(device); - rc = pqi_device_wait_for_pending_io(ctrl_info, device, - PQI_PENDING_IO_TIMEOUT_SECS); + rc = pqi_device_wait_for_pending_io(ctrl_info, device, PQI_PENDING_IO_TIMEOUT_SECS); if (rc) dev_err(&ctrl_info->pci_dev->dev, - "scsi %d:%d:%d:%d removing device with %d outstanding commands\n", + "scsi %d:%d:%d:%d removing device with %d outstanding command(s)\n", ctrl_info->scsi_host->host_no, device->bus, device->target, device->lun, atomic_read(&device->scsi_cmds_outstanding)); @@ -1553,10 +1552,8 @@ static struct pqi_scsi_dev *pqi_find_scsi_dev(struct pqi_ctrl_info *ctrl_info, { struct pqi_scsi_dev *device; - list_for_each_entry(device, &ctrl_info->scsi_device_list, - scsi_device_list_entry) - if (device->bus == bus && device->target == target && - device->lun == lun) + list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) + if (device->bus == bus && device->target == target && device->lun == lun) return device; return NULL; @@ -1582,15 +1579,12 @@ enum pqi_find_result { }; static enum pqi_find_result pqi_scsi_find_entry(struct pqi_ctrl_info *ctrl_info, - struct pqi_scsi_dev *device_to_find, - struct pqi_scsi_dev **matching_device) + struct pqi_scsi_dev *device_to_find, struct pqi_scsi_dev **matching_device) { struct pqi_scsi_dev *device; - list_for_each_entry(device, &ctrl_info->scsi_device_list, - scsi_device_list_entry) { - if (pqi_scsi3addr_equal(device_to_find->scsi3addr, - device->scsi3addr)) { + list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) { + if (pqi_scsi3addr_equal(device_to_find->scsi3addr, device->scsi3addr)) { *matching_device = device; if (pqi_device_equal(device_to_find, device)) { if (device_to_find->volume_offline) @@ -1790,8 +1784,7 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); /* Assume that all devices in the existing list have gone away. */ - list_for_each_entry(device, &ctrl_info->scsi_device_list, - scsi_device_list_entry) + list_for_each_entry(device, &ctrl_info->scsi_device_list, scsi_device_list_entry) device->device_gone = true; for (i = 0; i < num_new_devices; i++) { @@ -1831,7 +1824,7 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, list_for_each_entry_safe(device, next, &ctrl_info->scsi_device_list, scsi_device_list_entry) { if (device->device_gone) { - list_del(&device->scsi_device_list_entry); + list_del_init(&device->scsi_device_list_entry); list_add_tail(&device->delete_list_entry, &delete_list); } } @@ -1856,18 +1849,19 @@ static void pqi_update_device_list(struct pqi_ctrl_info *ctrl_info, pqi_ctrl_ofa_done(ctrl_info); /* Remove all devices that have gone away. */ - list_for_each_entry_safe(device, next, &delete_list, - delete_list_entry) { + list_for_each_entry_safe(device, next, &delete_list, delete_list_entry) { if (device->volume_offline) { pqi_dev_info(ctrl_info, "offline", device); pqi_show_volume_status(ctrl_info, device); - } else { - pqi_dev_info(ctrl_info, "removed", device); } - if (pqi_is_device_added(device)) - pqi_remove_device(ctrl_info, device); list_del(&device->delete_list_entry); - pqi_free_device(device); + if (pqi_is_device_added(device)) { + pqi_remove_device(ctrl_info, device); + } else { + if (!device->volume_offline) + pqi_dev_info(ctrl_info, "removed", device); + pqi_free_device(device); + } } /* @@ -2158,31 +2152,6 @@ out: return rc; } -static void pqi_remove_all_scsi_devices(struct pqi_ctrl_info *ctrl_info) -{ - unsigned long flags; - struct pqi_scsi_dev *device; - - while (1) { - spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); - - device = list_first_entry_or_null(&ctrl_info->scsi_device_list, - struct pqi_scsi_dev, scsi_device_list_entry); - if (device) - list_del(&device->scsi_device_list_entry); - - spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, - flags); - - if (!device) - break; - - if (pqi_is_device_added(device)) - pqi_remove_device(ctrl_info, device); - pqi_free_device(device); - } -} - static int pqi_scan_scsi_devices(struct pqi_ctrl_info *ctrl_info) { int rc = 0; @@ -5873,6 +5842,31 @@ static int pqi_slave_configure(struct scsi_device *sdev) return 0; } +static void pqi_slave_destroy(struct scsi_device *sdev) +{ + unsigned long flags; + struct pqi_scsi_dev *device; + struct pqi_ctrl_info *ctrl_info; + + ctrl_info = shost_to_hba(sdev->host); + + spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); + + device = sdev->hostdata; + if (device) { + sdev->hostdata = NULL; + if (!list_empty(&device->scsi_device_list_entry)) + list_del(&device->scsi_device_list_entry); + } + + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); + + if (device) { + pqi_dev_info(ctrl_info, "removed", device); + pqi_free_device(device); + } +} + static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) { @@ -6544,6 +6538,7 @@ static struct scsi_host_template pqi_driver_template = { .ioctl = pqi_ioctl, .slave_alloc = pqi_slave_alloc, .slave_configure = pqi_slave_configure, + .slave_destroy = pqi_slave_destroy, .map_queues = pqi_map_queues, .sdev_attrs = pqi_sdev_attrs, .shost_attrs = pqi_shost_attrs, @@ -7634,7 +7629,6 @@ static void pqi_remove_ctrl(struct pqi_ctrl_info *ctrl_info) { pqi_cancel_rescan_worker(ctrl_info); pqi_cancel_update_time_worker(ctrl_info); - pqi_remove_all_scsi_devices(ctrl_info); pqi_unregister_scsi(ctrl_info); if (ctrl_info->pqi_mode_enabled) pqi_revert_to_sis_mode(ctrl_info); -- cgit v1.2.3 From 8b664fefa3413ea42bb68546f1f1756289b080a7 Mon Sep 17 00:00:00 2001 From: Kevin Barnett Date: Fri, 31 Jul 2020 16:01:44 -0500 Subject: scsi: smartpqi: Add RAID bypass counter Add a counter to assist in verifying when RAID bypass is being used. Link: https://lore.kernel.org/r/159622930468.30579.13153724465552773544.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Reviewed-by: Martin Wilck Signed-off-by: Kevin Barnett Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi.h | 1 + drivers/scsi/smartpqi/smartpqi_init.c | 77 ++++++++++++++++++++++++----------- 2 files changed, 54 insertions(+), 24 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index 631306d347db..d0c635971481 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -963,6 +963,7 @@ struct pqi_scsi_dev { struct list_head delete_list_entry; atomic_t scsi_cmds_outstanding; + atomic_t raid_bypass_cnt; }; /* VPD inquiry pages */ diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 6a8dcc130677..4a9b4c4e6387 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -5377,19 +5377,18 @@ static int pqi_scsi_queue_command(struct Scsi_Host *shost, !blk_rq_is_passthrough(scmd->request)) { rc = pqi_raid_bypass_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); - if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) + if (rc == 0 || rc == SCSI_MLQUEUE_HOST_BUSY) { raid_bypassed = true; + atomic_inc(&device->raid_bypass_cnt); + } } if (!raid_bypassed) - rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, - queue_group); + rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); } else { if (device->aio_enabled) - rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, - queue_group); + rc = pqi_aio_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); else - rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, - queue_group); + rc = pqi_raid_submit_scsi_cmd(ctrl_info, device, scmd, queue_group); } out: @@ -5867,8 +5866,7 @@ static void pqi_slave_destroy(struct scsi_device *sdev) } } -static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, - void __user *arg) +static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, void __user *arg) { struct pci_dev *pci_dev; u32 subsystem_vendor; @@ -5885,8 +5883,7 @@ static int pqi_getpciinfo_ioctl(struct pqi_ctrl_info *ctrl_info, pciinfo.dev_fn = pci_dev->devfn; subsystem_vendor = pci_dev->subsystem_vendor; subsystem_device = pci_dev->subsystem_device; - pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | - subsystem_vendor; + pciinfo.board_id = ((subsystem_device << 16) & 0xffff0000) | subsystem_vendor; if (copy_to_user(arg, &pciinfo, sizeof(pciinfo))) return -EFAULT; @@ -6295,8 +6292,7 @@ static ssize_t pqi_unique_id_show(struct device *dev, device = sdev->hostdata; if (!device) { - spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, - flags); + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); return -ENODEV; } @@ -6333,8 +6329,7 @@ static ssize_t pqi_lunid_show(struct device *dev, device = sdev->hostdata; if (!device) { - spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, - flags); + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); return -ENODEV; } @@ -6369,8 +6364,7 @@ static ssize_t pqi_path_info_show(struct device *dev, device = sdev->hostdata; if (!device) { - spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, - flags); + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); return -ENODEV; } @@ -6446,9 +6440,8 @@ static ssize_t pqi_sas_address_show(struct device *dev, spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); device = sdev->hostdata; - if (pqi_is_logical_device(device)) { - spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, - flags); + if (!device || !pqi_is_device_with_sas_address(device)) { + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); return -ENODEV; } @@ -6473,6 +6466,11 @@ static ssize_t pqi_ssd_smart_path_enabled_show(struct device *dev, spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); device = sdev->hostdata; + if (!device) { + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); + return -ENODEV; + } + buffer[0] = device->raid_bypass_enabled ? '1' : '0'; buffer[1] = '\n'; buffer[2] = '\0'; @@ -6497,6 +6495,10 @@ static ssize_t pqi_raid_level_show(struct device *dev, spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); device = sdev->hostdata; + if (!device) { + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); + return -ENODEV; + } if (pqi_is_logical_device(device)) raid_level = pqi_raid_level_to_string(device->raid_level); @@ -6508,13 +6510,40 @@ static ssize_t pqi_raid_level_show(struct device *dev, return snprintf(buffer, PAGE_SIZE, "%s\n", raid_level); } +static ssize_t pqi_raid_bypass_cnt_show(struct device *dev, + struct device_attribute *attr, char *buffer) +{ + struct pqi_ctrl_info *ctrl_info; + struct scsi_device *sdev; + struct pqi_scsi_dev *device; + unsigned long flags; + int raid_bypass_cnt; + + sdev = to_scsi_device(dev); + ctrl_info = shost_to_hba(sdev->host); + + spin_lock_irqsave(&ctrl_info->scsi_device_list_lock, flags); + + device = sdev->hostdata; + if (!device) { + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); + return -ENODEV; + } + + raid_bypass_cnt = atomic_read(&device->raid_bypass_cnt); + + spin_unlock_irqrestore(&ctrl_info->scsi_device_list_lock, flags); + + return snprintf(buffer, PAGE_SIZE, "0x%x\n", raid_bypass_cnt); +} + static DEVICE_ATTR(lunid, 0444, pqi_lunid_show, NULL); static DEVICE_ATTR(unique_id, 0444, pqi_unique_id_show, NULL); static DEVICE_ATTR(path_info, 0444, pqi_path_info_show, NULL); static DEVICE_ATTR(sas_address, 0444, pqi_sas_address_show, NULL); -static DEVICE_ATTR(ssd_smart_path_enabled, 0444, - pqi_ssd_smart_path_enabled_show, NULL); +static DEVICE_ATTR(ssd_smart_path_enabled, 0444, pqi_ssd_smart_path_enabled_show, NULL); static DEVICE_ATTR(raid_level, 0444, pqi_raid_level_show, NULL); +static DEVICE_ATTR(raid_bypass_cnt, 0444, pqi_raid_bypass_cnt_show, NULL); static struct device_attribute *pqi_sdev_attrs[] = { &dev_attr_lunid, @@ -6523,6 +6552,7 @@ static struct device_attribute *pqi_sdev_attrs[] = { &dev_attr_sas_address, &dev_attr_ssd_smart_path_enabled, &dev_attr_raid_level, + &dev_attr_raid_bypass_cnt, NULL }; @@ -8543,8 +8573,7 @@ static int __init pqi_init(void) pr_info(DRIVER_NAME "\n"); - pqi_sas_transport_template = - sas_attach_transport(&pqi_sas_transport_functions); + pqi_sas_transport_template = sas_attach_transport(&pqi_sas_transport_functions); if (!pqi_sas_transport_template) return -ENODEV; -- cgit v1.2.3 From ce60a2b827d71cbfa1942a1f3d23ce4a12f20d21 Mon Sep 17 00:00:00 2001 From: Don Brace Date: Fri, 31 Jul 2020 16:01:50 -0500 Subject: scsi: smartpqi: Bump version to 1.2.16-010 Link: https://lore.kernel.org/r/159622931040.30579.9167901134341507088.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Reviewed-by: Gerry Morong Reviewed-by: Kevin Barnett Reviewed-by: Martin Wilck Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/smartpqi_init.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index 4a9b4c4e6387..a05d6b223857 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -33,11 +33,11 @@ #define BUILD_TIMESTAMP #endif -#define DRIVER_VERSION "1.2.10-025" +#define DRIVER_VERSION "1.2.16-010" #define DRIVER_MAJOR 1 #define DRIVER_MINOR 2 -#define DRIVER_RELEASE 10 -#define DRIVER_REVISION 25 +#define DRIVER_RELEASE 16 +#define DRIVER_REVISION 10 #define DRIVER_NAME "Microsemi PQI Driver (v" \ DRIVER_VERSION BUILD_TIMESTAMP ")" -- cgit v1.2.3 From 68bdb3db6ce3af6082395396efb301fb98ae87b9 Mon Sep 17 00:00:00 2001 From: Sai Prakash Ranjan Date: Tue, 4 Aug 2020 21:40:33 +0530 Subject: scsi: ufs-qcom: Remove unused MSM bus scaling APIs MSM bus scaling has moved on to use interconnect framework and downstream bus scaling APIs like msm_bus_scale*() do not exist anymore in the kernel. Currently they are guarded by a config which also does not exist and hence there are no build failures reported. Remove these unused interfaces as they are currently no-ops and the scaling support that may be added in future will use interconnect API. Link: https://lore.kernel.org/r/20200804161033.15586-1-saiprakash.ranjan@codeaurora.org Signed-off-by: Sai Prakash Ranjan Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-qcom.c | 225 +------------------------------------------- drivers/scsi/ufs/ufs-qcom.h | 11 --- 2 files changed, 1 insertion(+), 235 deletions(-) diff --git a/drivers/scsi/ufs/ufs-qcom.c b/drivers/scsi/ufs/ufs-qcom.c index 6b753388392b..f9d6ef356540 100644 --- a/drivers/scsi/ufs/ufs-qcom.c +++ b/drivers/scsi/ufs/ufs-qcom.c @@ -621,218 +621,6 @@ static int ufs_qcom_resume(struct ufs_hba *hba, enum ufs_pm_op pm_op) return 0; } -#ifdef CONFIG_MSM_BUS_SCALING -static int ufs_qcom_get_bus_vote(struct ufs_qcom_host *host, - const char *speed_mode) -{ - struct device *dev = host->hba->dev; - struct device_node *np = dev->of_node; - int err; - const char *key = "qcom,bus-vector-names"; - - if (!speed_mode) { - err = -EINVAL; - goto out; - } - - if (host->bus_vote.is_max_bw_needed && !!strcmp(speed_mode, "MIN")) - err = of_property_match_string(np, key, "MAX"); - else - err = of_property_match_string(np, key, speed_mode); - -out: - if (err < 0) - dev_err(dev, "%s: Invalid %s mode %d\n", - __func__, speed_mode, err); - return err; -} - -static void ufs_qcom_get_speed_mode(struct ufs_pa_layer_attr *p, char *result) -{ - int gear = max_t(u32, p->gear_rx, p->gear_tx); - int lanes = max_t(u32, p->lane_rx, p->lane_tx); - int pwr; - - /* default to PWM Gear 1, Lane 1 if power mode is not initialized */ - if (!gear) - gear = 1; - - if (!lanes) - lanes = 1; - - if (!p->pwr_rx && !p->pwr_tx) { - pwr = SLOWAUTO_MODE; - snprintf(result, BUS_VECTOR_NAME_LEN, "MIN"); - } else if (p->pwr_rx == FAST_MODE || p->pwr_rx == FASTAUTO_MODE || - p->pwr_tx == FAST_MODE || p->pwr_tx == FASTAUTO_MODE) { - pwr = FAST_MODE; - snprintf(result, BUS_VECTOR_NAME_LEN, "%s_R%s_G%d_L%d", "HS", - p->hs_rate == PA_HS_MODE_B ? "B" : "A", gear, lanes); - } else { - pwr = SLOW_MODE; - snprintf(result, BUS_VECTOR_NAME_LEN, "%s_G%d_L%d", - "PWM", gear, lanes); - } -} - -static int __ufs_qcom_set_bus_vote(struct ufs_qcom_host *host, int vote) -{ - int err = 0; - - if (vote != host->bus_vote.curr_vote) { - err = msm_bus_scale_client_update_request( - host->bus_vote.client_handle, vote); - if (err) { - dev_err(host->hba->dev, - "%s: msm_bus_scale_client_update_request() failed: bus_client_handle=0x%x, vote=%d, err=%d\n", - __func__, host->bus_vote.client_handle, - vote, err); - goto out; - } - - host->bus_vote.curr_vote = vote; - } -out: - return err; -} - -static int ufs_qcom_update_bus_bw_vote(struct ufs_qcom_host *host) -{ - int vote; - int err = 0; - char mode[BUS_VECTOR_NAME_LEN]; - - ufs_qcom_get_speed_mode(&host->dev_req_params, mode); - - vote = ufs_qcom_get_bus_vote(host, mode); - if (vote >= 0) - err = __ufs_qcom_set_bus_vote(host, vote); - else - err = vote; - - if (err) - dev_err(host->hba->dev, "%s: failed %d\n", __func__, err); - else - host->bus_vote.saved_vote = vote; - return err; -} - -static int ufs_qcom_set_bus_vote(struct ufs_hba *hba, bool on) -{ - struct ufs_qcom_host *host = ufshcd_get_variant(hba); - int vote, err; - - /* - * In case ufs_qcom_init() is not yet done, simply ignore. - * This ufs_qcom_set_bus_vote() shall be called from - * ufs_qcom_init() after init is done. - */ - if (!host) - return 0; - - if (on) { - vote = host->bus_vote.saved_vote; - if (vote == host->bus_vote.min_bw_vote) - ufs_qcom_update_bus_bw_vote(host); - } else { - vote = host->bus_vote.min_bw_vote; - } - - err = __ufs_qcom_set_bus_vote(host, vote); - if (err) - dev_err(hba->dev, "%s: set bus vote failed %d\n", - __func__, err); - - return err; -} - -static ssize_t -show_ufs_to_mem_max_bus_bw(struct device *dev, struct device_attribute *attr, - char *buf) -{ - struct ufs_hba *hba = dev_get_drvdata(dev); - struct ufs_qcom_host *host = ufshcd_get_variant(hba); - - return snprintf(buf, PAGE_SIZE, "%u\n", - host->bus_vote.is_max_bw_needed); -} - -static ssize_t -store_ufs_to_mem_max_bus_bw(struct device *dev, struct device_attribute *attr, - const char *buf, size_t count) -{ - struct ufs_hba *hba = dev_get_drvdata(dev); - struct ufs_qcom_host *host = ufshcd_get_variant(hba); - uint32_t value; - - if (!kstrtou32(buf, 0, &value)) { - host->bus_vote.is_max_bw_needed = !!value; - ufs_qcom_update_bus_bw_vote(host); - } - - return count; -} - -static int ufs_qcom_bus_register(struct ufs_qcom_host *host) -{ - int err; - struct msm_bus_scale_pdata *bus_pdata; - struct device *dev = host->hba->dev; - struct platform_device *pdev = to_platform_device(dev); - struct device_node *np = dev->of_node; - - bus_pdata = msm_bus_cl_get_pdata(pdev); - if (!bus_pdata) { - dev_err(dev, "%s: failed to get bus vectors\n", __func__); - err = -ENODATA; - goto out; - } - - err = of_property_count_strings(np, "qcom,bus-vector-names"); - if (err < 0 || err != bus_pdata->num_usecases) { - dev_err(dev, "%s: qcom,bus-vector-names not specified correctly %d\n", - __func__, err); - goto out; - } - - host->bus_vote.client_handle = msm_bus_scale_register_client(bus_pdata); - if (!host->bus_vote.client_handle) { - dev_err(dev, "%s: msm_bus_scale_register_client failed\n", - __func__); - err = -EFAULT; - goto out; - } - - /* cache the vote index for minimum and maximum bandwidth */ - host->bus_vote.min_bw_vote = ufs_qcom_get_bus_vote(host, "MIN"); - host->bus_vote.max_bw_vote = ufs_qcom_get_bus_vote(host, "MAX"); - - host->bus_vote.max_bus_bw.show = show_ufs_to_mem_max_bus_bw; - host->bus_vote.max_bus_bw.store = store_ufs_to_mem_max_bus_bw; - sysfs_attr_init(&host->bus_vote.max_bus_bw.attr); - host->bus_vote.max_bus_bw.attr.name = "max_bus_bw"; - host->bus_vote.max_bus_bw.attr.mode = S_IRUGO | S_IWUSR; - err = device_create_file(dev, &host->bus_vote.max_bus_bw); -out: - return err; -} -#else /* CONFIG_MSM_BUS_SCALING */ -static int ufs_qcom_update_bus_bw_vote(struct ufs_qcom_host *host) -{ - return 0; -} - -static int ufs_qcom_set_bus_vote(struct ufs_hba *host, bool on) -{ - return 0; -} - -static int ufs_qcom_bus_register(struct ufs_qcom_host *host) -{ - return 0; -} -#endif /* CONFIG_MSM_BUS_SCALING */ - static void ufs_qcom_dev_ref_clk_ctrl(struct ufs_qcom_host *host, bool enable) { if (host->dev_ref_clk_ctrl_mmio && @@ -976,7 +764,6 @@ static int ufs_qcom_pwr_change_notify(struct ufs_hba *hba, /* cache the power mode parameters to use internally */ memcpy(&host->dev_req_params, dev_req_params, sizeof(*dev_req_params)); - ufs_qcom_update_bus_bw_vote(host); /* disable the device ref clock if entered PWM mode */ if (ufshcd_is_hs_mode(&hba->pwr_info) && @@ -1107,9 +894,7 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on, switch (status) { case PRE_CHANGE: - if (on) { - err = ufs_qcom_set_bus_vote(hba, true); - } else { + if (!on) { if (!ufs_qcom_is_link_active(hba)) { /* disable device ref_clk */ ufs_qcom_dev_ref_clk_ctrl(host, false); @@ -1121,8 +906,6 @@ static int ufs_qcom_setup_clocks(struct ufs_hba *hba, bool on, /* enable the device ref clock for HS mode*/ if (ufshcd_is_hs_mode(&hba->pwr_info)) ufs_qcom_dev_ref_clk_ctrl(host, true); - } else { - err = ufs_qcom_set_bus_vote(hba, false); } break; } @@ -1264,10 +1047,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) goto out_variant_clear; } - err = ufs_qcom_bus_register(host); - if (err) - goto out_variant_clear; - ufs_qcom_get_controller_revision(hba, &host->hw_ver.major, &host->hw_ver.minor, &host->hw_ver.step); @@ -1307,7 +1086,6 @@ static int ufs_qcom_init(struct ufs_hba *hba) if (err) goto out_variant_clear; - ufs_qcom_set_bus_vote(hba, true); ufs_qcom_setup_clocks(hba, true, POST_CHANGE); if (hba->dev->id < MAX_UFS_QCOM_HOSTS) @@ -1446,7 +1224,6 @@ static int ufs_qcom_clk_scale_notify(struct ufs_hba *hba, dev_req_params->pwr_rx, dev_req_params->hs_rate, false); - ufs_qcom_update_bus_bw_vote(host); } out: diff --git a/drivers/scsi/ufs/ufs-qcom.h b/drivers/scsi/ufs/ufs-qcom.h index 97247d17e258..3f4922743b3e 100644 --- a/drivers/scsi/ufs/ufs-qcom.h +++ b/drivers/scsi/ufs/ufs-qcom.h @@ -174,16 +174,6 @@ static inline void ufs_qcom_deassert_reset(struct ufs_hba *hba) mb(); } -struct ufs_qcom_bus_vote { - uint32_t client_handle; - uint32_t curr_vote; - int min_bw_vote; - int max_bw_vote; - int saved_vote; - bool is_max_bw_needed; - struct device_attribute max_bus_bw; -}; - /* Host controller hardware version: major.minor.step */ struct ufs_hw_version { u16 step; @@ -216,7 +206,6 @@ struct ufs_qcom_host { struct phy *generic_phy; struct ufs_hba *hba; - struct ufs_qcom_bus_vote bus_vote; struct ufs_pa_layer_attr dev_req_params; struct clk *rx_l0_sync_clk; struct clk *tx_l0_sync_clk; -- cgit v1.2.3 From a521bbc38ddc97d620103a543379380591ec912b Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 7 Aug 2020 04:06:50 -0700 Subject: scsi: qedf: Check for port type and role before processing an event The rport lock gets initialized during offload. If a non-FCP or non-target rport got logout then this rport will be uninitialized. KASAN was complaining because of it. ========= [ 14.384434] the code is fine but needs lockdep annotation. [ 14.384482] turning off the locking correctness validator. ======== Link: https://lore.kernel.org/r/20200807110656.19965-2-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_main.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 3f04f2c81366..39c4bdc89937 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -1558,6 +1558,17 @@ static void qedf_rport_event_handler(struct fc_lport *lport, if (port_id == FC_FID_DIR_SERV) break; + if (rdata->spp_type != FC_TYPE_FCP) { + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, + "No action since spp type isn't FCP\n"); + break; + } + if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) { + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, + "Not FCP target so no action\n"); + break; + } + if (!rport) { QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_DISC, "port_id=%x - rport notcreated Yet!!\n", port_id); -- cgit v1.2.3 From 7fb8ff080689038dd20a5e8661a594911163d910 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 7 Aug 2020 04:06:51 -0700 Subject: scsi: qedf: Check the validity of rjt frame before processing This is reported by Klockwork. Link: https://lore.kernel.org/r/20200807110656.19965-3-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_els.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c index 542ba9454257..ab4b1a958eab 100644 --- a/drivers/scsi/qedf/qedf_els.c +++ b/drivers/scsi/qedf/qedf_els.c @@ -883,6 +883,11 @@ static void qedf_rec_compl(struct qedf_els_cb_arg *cb_arg) opcode = fc_frame_payload_op(fp); if (opcode == ELS_LS_RJT) { rjt = fc_frame_payload_get(fp, sizeof(*rjt)); + if (!rjt) { + QEDF_ERR(&qedf->dbg_ctx, "payload get failed"); + goto out_free_frame; + } + QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Received LS_RJT for REC: er_reason=0x%x, " "er_explan=0x%x.\n", rjt->er_reason, rjt->er_explan); -- cgit v1.2.3 From b09ea43fecd23c73bac74620d51ac40529ae319d Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 7 Aug 2020 04:06:52 -0700 Subject: scsi: qedf: Do not kill timeout work for original I/O on RRQ completion The timer is already cancelled when abort is completed, hence no need to cancel it again. Link: https://lore.kernel.org/r/20200807110656.19965-4-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_els.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c index ab4b1a958eab..edd67024a375 100644 --- a/drivers/scsi/qedf/qedf_els.c +++ b/drivers/scsi/qedf/qedf_els.c @@ -185,10 +185,6 @@ static void qedf_rrq_compl(struct qedf_els_cb_arg *cb_arg) goto out_free; } - if (rrq_req->event != QEDF_IOREQ_EV_ELS_TMO && - rrq_req->event != QEDF_IOREQ_EV_ELS_ERR_DETECT) - cancel_delayed_work_sync(&orig_io_req->timeout_work); - refcount = kref_read(&orig_io_req->refcount); QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "rrq_compl: orig io = %p," " orig xid = 0x%x, rrq_xid = 0x%x, refcount=%d\n", -- cgit v1.2.3 From 39d0357dd5ed81bdb2c3bfee8df23edcea7afd40 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 7 Aug 2020 04:06:53 -0700 Subject: scsi: qedf: Send cleanup even for RRQ on timeout Send cleanup even for RRQ on timeout. Link: https://lore.kernel.org/r/20200807110656.19965-5-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_io.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c index acd9774a9387..26d11cc91608 100644 --- a/drivers/scsi/qedf/qedf_io.c +++ b/drivers/scsi/qedf/qedf_io.c @@ -85,13 +85,13 @@ static void qedf_cmd_timeout(struct work_struct *work) */ QEDF_ERR(&(qedf->dbg_ctx), "ELS timeout, xid=0x%x.\n", io_req->xid); + qedf_initiate_cleanup(io_req, true); io_req->event = QEDF_IOREQ_EV_ELS_TMO; /* Call callback function to complete command */ if (io_req->cb_func && io_req->cb_arg) { io_req->cb_func(io_req->cb_arg); io_req->cb_arg = NULL; } - qedf_initiate_cleanup(io_req, true); kref_put(&io_req->refcount, qedf_release_cmd); break; case QEDF_SEQ_CLEANUP: -- cgit v1.2.3 From 1f6d1d4ca2caf4d111493c587f3bd7921d244ba5 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 7 Aug 2020 04:06:54 -0700 Subject: scsi: qedf: Initiate cleanup for ELS commands as well Initiate cleanup for ELS commands as well. Link: https://lore.kernel.org/r/20200807110656.19965-6-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_io.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c index 26d11cc91608..7969f3aa8b61 100644 --- a/drivers/scsi/qedf/qedf_io.c +++ b/drivers/scsi/qedf/qedf_io.c @@ -1704,8 +1704,10 @@ void qedf_flush_active_ios(struct qedf_rport *fcport, int lun) io_req, io_req->xid); continue; } + qedf_initiate_cleanup(io_req, false); flush_cnt++; qedf_flush_els_req(qedf, io_req); + /* * Release the kref and go back to the top of the * loop. @@ -2169,6 +2171,10 @@ int qedf_initiate_cleanup(struct qedf_ioreq *io_req, return SUCCESS; } + if (io_req->cmd_type == QEDF_ELS) { + goto process_els; + } + if (!test_bit(QEDF_CMD_OUTSTANDING, &io_req->flags) || test_and_set_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags)) { QEDF_ERR(&(qedf->dbg_ctx), "io_req xid=0x%x already in " @@ -2178,6 +2184,7 @@ int qedf_initiate_cleanup(struct qedf_ioreq *io_req, } set_bit(QEDF_CMD_IN_CLEANUP, &io_req->flags); +process_els: /* Ensure room on SQ */ if (!atomic_read(&fcport->free_sqes)) { QEDF_ERR(&(qedf->dbg_ctx), "No SQ entries available\n"); -- cgit v1.2.3 From 22ddec31b0d424c997a49e8b3a5dfc2f2c827363 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 7 Aug 2020 04:06:55 -0700 Subject: scsi: qedf: Don't process ELS completion if event is flushed or cleaned up Don't process ELS completion if event is flushed or cleaned up. Link: https://lore.kernel.org/r/20200807110656.19965-7-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_els.c | 9 +++++++++ 1 file changed, 9 insertions(+) diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c index edd67024a375..e2e80ea0656f 100644 --- a/drivers/scsi/qedf/qedf_els.c +++ b/drivers/scsi/qedf/qedf_els.c @@ -147,6 +147,15 @@ void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered with xid = 0x%x" " cmd_type = %d.\n", els_req->xid, els_req->cmd_type); + if ((els_req->event == QEDF_IOREQ_EV_ELS_FLUSH) + || (els_req->event == QEDF_IOREQ_EV_CLEANUP_SUCCESS) + || (els_req->event == QEDF_IOREQ_EV_CLEANUP_FAILED)) { + QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_IO, + "ELS completion xid=0x%x after flush event=0x%x", + els_req->xid, els_req->event); + return; + } + clear_bit(QEDF_CMD_OUTSTANDING, &els_req->flags); /* Kill the ELS timer */ -- cgit v1.2.3 From 3079285bd73c0b3ea2528298cda7db77f9ea7eb7 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Fri, 7 Aug 2020 04:06:56 -0700 Subject: scsi: qedf: Fix race between ELS completion and flushing ELS request Fix race between ELS completion and flushing ELS request. Link: https://lore.kernel.org/r/20200807110656.19965-8-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_els.c | 14 ++++++++++++++ drivers/scsi/qedf/qedf_io.c | 2 ++ 2 files changed, 16 insertions(+) diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c index e2e80ea0656f..6cb8c9b40850 100644 --- a/drivers/scsi/qedf/qedf_els.c +++ b/drivers/scsi/qedf/qedf_els.c @@ -143,6 +143,7 @@ void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, struct qedf_ioreq *els_req) { struct fcoe_cqe_midpath_info *mp_info; + struct qedf_rport *fcport; QEDF_INFO(&(qedf->dbg_ctx), QEDF_LOG_ELS, "Entered with xid = 0x%x" " cmd_type = %d.\n", els_req->xid, els_req->cmd_type); @@ -156,6 +157,19 @@ void qedf_process_els_compl(struct qedf_ctx *qedf, struct fcoe_cqe *cqe, return; } + fcport = els_req->fcport; + + /* When flush is active, + * let the cmds be completed from the cleanup context + */ + if (test_bit(QEDF_RPORT_IN_TARGET_RESET, &fcport->flags) || + test_bit(QEDF_RPORT_IN_LUN_RESET, &fcport->flags)) { + QEDF_INFO(&qedf->dbg_ctx, QEDF_LOG_IO, + "Dropping ELS completion xid=0x%x as fcport is flushing", + els_req->xid); + return; + } + clear_bit(QEDF_CMD_OUTSTANDING, &els_req->flags); /* Kill the ELS timer */ diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c index 7969f3aa8b61..86c8afb9a4eb 100644 --- a/drivers/scsi/qedf/qedf_io.c +++ b/drivers/scsi/qedf/qedf_io.c @@ -1562,6 +1562,8 @@ static void qedf_flush_els_req(struct qedf_ctx *qedf, */ els_req->event = QEDF_IOREQ_EV_ELS_FLUSH; + clear_bit(QEDF_CMD_OUTSTANDING, &els_req->flags); + /* Cancel the timer */ cancel_delayed_work_sync(&els_req->timeout_work); -- cgit v1.2.3 From f273c54bb7dbc33ec8c58c4632f6b1b1b810be21 Mon Sep 17 00:00:00 2001 From: Bean Huo Date: Fri, 14 Aug 2020 11:50:33 +0200 Subject: scsi: ufs: Change ufshcd_comp_devman_upiu() to ufshcd_compose_devman_upiu() ufshcd_comp_devman_upiu() was poorly named leading people to think it was a completion function. Rename it to ufshcd_compose_devman_upiu(). Link: https://lore.kernel.org/r/20200814095034.20709-2-huobean@gmail.com Reviewed-by: Stanley Chu Reviewed-by: Asutosh Das Acked-by: Avri Altman Signed-off-by: Bean Huo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 7 ++++--- 1 file changed, 4 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index efb40b1b95b4..c81983e4e05d 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -2401,12 +2401,13 @@ static inline void ufshcd_prepare_utp_nop_upiu(struct ufshcd_lrb *lrbp) } /** - * ufshcd_comp_devman_upiu - UFS Protocol Information Unit(UPIU) + * ufshcd_compose_devman_upiu - UFS Protocol Information Unit(UPIU) * for Device Management Purposes * @hba: per adapter instance * @lrbp: pointer to local reference block */ -static int ufshcd_comp_devman_upiu(struct ufs_hba *hba, struct ufshcd_lrb *lrbp) +static int ufshcd_compose_devman_upiu(struct ufs_hba *hba, + struct ufshcd_lrb *lrbp) { u8 upiu_flags; int ret = 0; @@ -2613,7 +2614,7 @@ static int ufshcd_compose_dev_cmd(struct ufs_hba *hba, ufshcd_prepare_lrbp_crypto(NULL, lrbp); hba->dev_cmd.type = cmd_type; - return ufshcd_comp_devman_upiu(hba, lrbp); + return ufshcd_compose_devman_upiu(hba, lrbp); } static int -- cgit v1.2.3 From b0008625795b6f8de2fc785041dd1dc8468f0367 Mon Sep 17 00:00:00 2001 From: Bean Huo Date: Fri, 14 Aug 2020 11:50:34 +0200 Subject: scsi: ufs: Remove several redundant goto statements Link: https://lore.kernel.org/r/20200814095034.20709-3-huobean@gmail.com Reviewed-by: Stanley Chu Reviewed-by: Asutosh Das Signed-off-by: Bean Huo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 25 +++++-------------------- 1 file changed, 5 insertions(+), 20 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index c81983e4e05d..2b55c2e9f026 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -4258,10 +4258,8 @@ int ufshcd_make_hba_operational(struct ufs_hba *hba) dev_err(hba->dev, "Host controller not ready to process requests"); err = -EIO; - goto out; } -out: return err; } EXPORT_SYMBOL_GPL(ufshcd_make_hba_operational); @@ -5544,10 +5542,8 @@ static bool ufshcd_quirk_dl_nac_errors(struct ufs_hba *hba) hba->saved_err &= ~UIC_ERROR; /* clear NAC error */ hba->saved_uic_err &= ~UFSHCD_UIC_DL_NAC_RECEIVED_ERROR; - if (!hba->saved_uic_err) { + if (!hba->saved_uic_err) err_handling = false; - goto out; - } } out: spin_unlock_irqrestore(hba->host->host_lock, flags); @@ -7714,12 +7710,10 @@ static int ufshcd_config_vreg(struct device *dev, if (vreg->min_uV && vreg->max_uV) { min_uV = on ? vreg->min_uV : 0; ret = regulator_set_voltage(reg, min_uV, vreg->max_uV); - if (ret) { + if (ret) dev_err(dev, "%s: %s set voltage failed, err=%d\n", __func__, name, ret); - goto out; - } } } out: @@ -7782,8 +7776,6 @@ static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on) goto out; ret = ufshcd_toggle_vreg(dev, info->vccq2, on); - if (ret) - goto out; out: if (ret) { @@ -7829,10 +7821,8 @@ static int ufshcd_init_vreg(struct ufs_hba *hba) goto out; ret = ufshcd_get_vreg(dev, info->vccq); - if (ret) - goto out; - - ret = ufshcd_get_vreg(dev, info->vccq2); + if (!ret) + ret = ufshcd_get_vreg(dev, info->vccq2); out: return ret; } @@ -7976,12 +7966,7 @@ static int ufshcd_variant_hba_init(struct ufs_hba *hba) err = ufshcd_vops_setup_regulators(hba, true); if (err) - goto out_exit; - - goto out; - -out_exit: - ufshcd_vops_exit(hba); + ufshcd_vops_exit(hba); out: if (err) dev_err(hba->dev, "%s: variant %s init failed err %d\n", -- cgit v1.2.3 From 29707fab584540ce4e85526b0dde49b976bc1bdf Mon Sep 17 00:00:00 2001 From: Kiwoong Kim Date: Mon, 10 Aug 2020 19:02:27 +0900 Subject: scsi: ufs: Change fDeviceInit busy wait Currently, the UFS driver busy waits for fDeviceInit to be cleared. Provide an upper bound and sleep between attempts instead of busy waiting. Link: https://lore.kernel.org/r/1597053747-75171-1-git-send-email-kwmad.kim@samsung.com Tested-by: Kiwoong Kim Reviewed-by: Avri Altman Signed-off-by: Kiwoong Kim Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 33 +++++++++++++++++++++------------ 1 file changed, 21 insertions(+), 12 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 2b55c2e9f026..66e837c9af8c 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -74,6 +74,9 @@ /* Default value of wait time before gating device ref clock */ #define UFSHCD_REF_CLK_GATING_WAIT_US 0xFF /* microsecs */ +/* Polling time to wait for fDeviceInit */ +#define FDEVICEINIT_COMPL_TIMEOUT 1500 /* millisecs */ + #define ufshcd_toggle_vreg(_dev, _vreg, _on) \ ({ \ int _ret; \ @@ -4175,9 +4178,9 @@ EXPORT_SYMBOL_GPL(ufshcd_config_pwr_mode); */ static int ufshcd_complete_dev_init(struct ufs_hba *hba) { - int i; int err; bool flag_res = true; + ktime_t timeout; err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_SET_FLAG, QUERY_FLAG_IDN_FDEVICEINIT, 0, NULL); @@ -4188,20 +4191,26 @@ static int ufshcd_complete_dev_init(struct ufs_hba *hba) goto out; } - /* poll for max. 1000 iterations for fDeviceInit flag to clear */ - for (i = 0; i < 1000 && !err && flag_res; i++) - err = ufshcd_query_flag_retry(hba, UPIU_QUERY_OPCODE_READ_FLAG, - QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res); + /* Poll fDeviceInit flag to be cleared */ + timeout = ktime_add_ms(ktime_get(), FDEVICEINIT_COMPL_TIMEOUT); + do { + err = ufshcd_query_flag(hba, UPIU_QUERY_OPCODE_READ_FLAG, + QUERY_FLAG_IDN_FDEVICEINIT, 0, &flag_res); + if (!flag_res) + break; + usleep_range(5000, 10000); + } while (ktime_before(ktime_get(), timeout)); - if (err) + if (err) { dev_err(hba->dev, - "%s reading fDeviceInit flag failed with error %d\n", - __func__, err); - else if (flag_res) + "%s reading fDeviceInit flag failed with error %d\n", + __func__, err); + } else if (flag_res) { dev_err(hba->dev, - "%s fDeviceInit was not cleared by the device\n", - __func__); - + "%s fDeviceInit was not cleared by the device\n", + __func__); + err = -EBUSY; + } out: return err; } -- cgit v1.2.3 From 50807f22c89f77f8478d2feb8e1289582034e06e Mon Sep 17 00:00:00 2001 From: Can Guo Date: Tue, 18 Aug 2020 18:02:29 -0700 Subject: scsi: ufs: Remove an unpaired ufshcd_scsi_unblock_requests() in err_handler() Commit 5586dd8ea250 ("scsi: ufs: Fix a race condition between error handler and runtime PM ops") moves the ufshcd_scsi_block_requests() inside err_handler() but forgets to remove the ufshcd_scsi_unblock_requests() in the early return path. Correct the mistake. Link: https://lore.kernel.org/r/1597798958-24322-1-git-send-email-cang@codeaurora.org Fixes: 5586dd8ea250 ("scsi: ufs: Fix a race condition between error handler and runtime PM ops") Reviewed-by: Asutosh Das Reviewed-by: Hongwu Su Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 66e837c9af8c..06e2439d523c 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -5679,7 +5679,6 @@ static void ufshcd_err_handler(struct work_struct *work) if (hba->ufshcd_state != UFSHCD_STATE_ERROR) hba->ufshcd_state = UFSHCD_STATE_OPERATIONAL; spin_unlock_irqrestore(hba->host->host_lock, flags); - ufshcd_scsi_unblock_requests(hba); return; } ufshcd_set_eh_in_progress(hba); -- cgit v1.2.3 From 460d74a0911c562f56148519a2467271271a73aa Mon Sep 17 00:00:00 2001 From: Andy Teng Date: Wed, 19 Aug 2020 16:43:40 +0800 Subject: scsi: ufs: ufs-mediatek: Modify the minimum RX/TX lane count to 2 MediaTek UFS host now supports 2 lanes. Modify the lane count to 2. This modification shall not impact old 1-lane host because PA_CONNECTEDRXDATALANES and PA_CONNECTEDTXDATALANES will limit the target lanes properly during power mode change. So we could relax the limitation in ufs_dev_params. Link: https://lore.kernel.org/r/20200819084340.7021-1-stanley.chu@mediatek.com Reviewed-by: Stanley Chu Reviewed-by: Avri Altman Signed-off-by: Andy Teng Signed-off-by: Stanley Chu Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-mediatek.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h index 8ed24d5fcff9..87657376d27a 100644 --- a/drivers/scsi/ufs/ufs-mediatek.h +++ b/drivers/scsi/ufs/ufs-mediatek.h @@ -33,8 +33,8 @@ /* * Vendor specific pre-defined parameters */ -#define UFS_MTK_LIMIT_NUM_LANES_RX 1 -#define UFS_MTK_LIMIT_NUM_LANES_TX 1 +#define UFS_MTK_LIMIT_NUM_LANES_RX 2 +#define UFS_MTK_LIMIT_NUM_LANES_TX 2 #define UFS_MTK_LIMIT_HSGEAR_RX UFS_HS_G3 #define UFS_MTK_LIMIT_HSGEAR_TX UFS_HS_G3 #define UFS_MTK_LIMIT_PWMGEAR_RX UFS_PWM_G4 -- cgit v1.2.3 From 33fff97cbdc1246d59f64614e0081e393c484d02 Mon Sep 17 00:00:00 2001 From: Li Heng Date: Wed, 29 Jul 2020 17:19:14 +0800 Subject: scsi: mptfc: Remove unneeded cast from memory allocation Remove casting the values returned by memory allocation function. Coccinelle emits WARNING: ./drivers/message/fusion/mptfc.c:766:17-30: WARNING: casting value returned by memory allocation function to (FCPortPage0_t *) is useless. ./drivers/message/fusion/mptfc.c:907:17-30: WARNING: casting value returned by memory allocation function to (FCPortPage1_t *) is useless. [mkp: memset()] Link: https://lore.kernel.org/r/1596014354-59935-1-git-send-email-liheng40@huawei.com Signed-off-by: Li Heng Signed-off-by: Martin K. Petersen --- drivers/message/fusion/mptfc.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/message/fusion/mptfc.c b/drivers/message/fusion/mptfc.c index 4314a3352b96..f92b0433f599 100644 --- a/drivers/message/fusion/mptfc.c +++ b/drivers/message/fusion/mptfc.c @@ -763,7 +763,7 @@ mptfc_GetFcPortPage0(MPT_ADAPTER *ioc, int portnum) data_sz = hdr.PageLength * 4; rc = -ENOMEM; - ppage0_alloc = (FCPortPage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); + ppage0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, &page0_dma); if (ppage0_alloc) { try_again: @@ -904,7 +904,7 @@ start_over: if (data_sz < sizeof(FCPortPage1_t)) data_sz = sizeof(FCPortPage1_t); - page1_alloc = (FCPortPage1_t *) pci_alloc_consistent(ioc->pcidev, + page1_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, &page1_dma); if (!page1_alloc) @@ -922,8 +922,6 @@ start_over: } } - memset(page1_alloc,0,data_sz); - cfg.physAddr = page1_dma; cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; -- cgit v1.2.3 From 8fee79ed8ea23c241e55fb5f6fd935d330f074f6 Mon Sep 17 00:00:00 2001 From: Li Heng Date: Wed, 29 Jul 2020 17:19:50 +0800 Subject: scsi: mptctl: Remove unneeded cast from memory allocation Remove casting the values returned by memory allocation function. Coccinelle emits WARNING: ./drivers/message/fusion/mptctl.c:2596:14-31: WARNING: casting value returned by memory allocation function to (SCSIDevicePage0_t *) is useless. ./drivers/message/fusion/mptctl.c:2660:15-32: WARNING: casting value returned by memory allocation function to (SCSIDevicePage3_t *) is useless. Link: https://lore.kernel.org/r/1596014390-18605-1-git-send-email-liheng40@huawei.com Signed-off-by: Li Heng Signed-off-by: Martin K. Petersen --- drivers/message/fusion/mptctl.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/message/fusion/mptctl.c b/drivers/message/fusion/mptctl.c index 1074b882c57c..24aebad60366 100644 --- a/drivers/message/fusion/mptctl.c +++ b/drivers/message/fusion/mptctl.c @@ -2593,7 +2593,7 @@ mptctl_hp_targetinfo(MPT_ADAPTER *ioc, unsigned long arg) /* Get the data transfer speeds */ data_sz = ioc->spi_data.sdp0length * 4; - pg0_alloc = (SCSIDevicePage0_t *) pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma); + pg0_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma); if (pg0_alloc) { hdr.PageVersion = ioc->spi_data.sdp0version; hdr.PageLength = data_sz; @@ -2657,8 +2657,7 @@ mptctl_hp_targetinfo(MPT_ADAPTER *ioc, unsigned long arg) /* Issue the second config page request */ cfg.action = MPI_CONFIG_ACTION_PAGE_READ_CURRENT; data_sz = (int) cfg.cfghdr.hdr->PageLength * 4; - pg3_alloc = (SCSIDevicePage3_t *) pci_alloc_consistent( - ioc->pcidev, data_sz, &page_dma); + pg3_alloc = pci_alloc_consistent(ioc->pcidev, data_sz, &page_dma); if (pg3_alloc) { cfg.physAddr = page_dma; cfg.pageAddr = (karg.hdr.channel << 8) | karg.hdr.id; -- cgit v1.2.3 From f672d7d35f88fbd84b43090450145c076f54c95a Mon Sep 17 00:00:00 2001 From: Li Heng Date: Thu, 30 Jul 2020 11:03:55 +0800 Subject: scsi: mvsas: Remove superfluous memset() Fixes coccicheck warning: ./drivers/scsi/mvsas/mv_init.c:244:11-29: WARNING: dma_alloc_coherent use in mvi -> tx already zeroes out memory, so memset is not needed ./drivers/scsi/mvsas/mv_init.c:250:15-33: WARNING: dma_alloc_coherent use in mvi -> rx_fis already zeroes out memory, so memset is not needed ./drivers/scsi/mvsas/mv_init.c:256:11-29: WARNING: dma_alloc_coherent use in mvi -> rx already zeroes out memory, so memset is not needed ./drivers/scsi/mvsas/mv_init.c:265:13-31: WARNING: dma_alloc_coherent use in mvi -> slot already zeroes out memory, so memset is not needed dma_alloc_coherent() already zeroes out memory so memset() is not needed. Link: https://lore.kernel.org/r/1596078235-54002-1-git-send-email-liheng40@huawei.com Signed-off-by: Li Heng Signed-off-by: Martin K. Petersen --- drivers/scsi/mvsas/mv_init.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/scsi/mvsas/mv_init.c b/drivers/scsi/mvsas/mv_init.c index 978f5283c883..6aa2697c4a15 100644 --- a/drivers/scsi/mvsas/mv_init.c +++ b/drivers/scsi/mvsas/mv_init.c @@ -246,19 +246,16 @@ static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost) &mvi->tx_dma, GFP_KERNEL); if (!mvi->tx) goto err_out; - memset(mvi->tx, 0, sizeof(*mvi->tx) * MVS_CHIP_SLOT_SZ); mvi->rx_fis = dma_alloc_coherent(mvi->dev, MVS_RX_FISL_SZ, &mvi->rx_fis_dma, GFP_KERNEL); if (!mvi->rx_fis) goto err_out; - memset(mvi->rx_fis, 0, MVS_RX_FISL_SZ); mvi->rx = dma_alloc_coherent(mvi->dev, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1), &mvi->rx_dma, GFP_KERNEL); if (!mvi->rx) goto err_out; - memset(mvi->rx, 0, sizeof(*mvi->rx) * (MVS_RX_RING_SZ + 1)); mvi->rx[0] = cpu_to_le32(0xfff); mvi->rx_cons = 0xfff; @@ -267,7 +264,6 @@ static int mvs_alloc(struct mvs_info *mvi, struct Scsi_Host *shost) &mvi->slot_dma, GFP_KERNEL); if (!mvi->slot) goto err_out; - memset(mvi->slot, 0, sizeof(*mvi->slot) * slot_nr); mvi->bulk_buffer = dma_alloc_coherent(mvi->dev, TRASH_BUCKET_SIZE, -- cgit v1.2.3 From 7b1d886298077e8fb1f6c1d44cdb22872bb5bb8c Mon Sep 17 00:00:00 2001 From: Li Heng Date: Thu, 30 Jul 2020 11:31:56 +0800 Subject: scsi: pmcraid: Remove superfluous memset() Fixes coccicheck warning: ./drivers/scsi/pmcraid.c:4709:3-21: WARNING: dma_alloc_coherent use in pinstance -> hrrq_start [ i ] already zeroes out memory, so memset is not needed dma_alloc_coherent() already zeroes out memory so memset() is not needed. Link: https://lore.kernel.org/r/1596079918-41115-2-git-send-email-liheng40@huawei.com Signed-off-by: Li Heng Signed-off-by: Martin K. Petersen --- drivers/scsi/pmcraid.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index aa9ae2ae8579..d99568fdf4af 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -4716,7 +4716,6 @@ static int pmcraid_allocate_host_rrqs(struct pmcraid_instance *pinstance) return -ENOMEM; } - memset(pinstance->hrrq_start[i], 0, buffer_size); pinstance->hrrq_curr[i] = pinstance->hrrq_start[i]; pinstance->hrrq_end[i] = pinstance->hrrq_start[i] + PMCRAID_MAX_CMD - 1; -- cgit v1.2.3 From bef93fbfcf4ae9ecaa50e38d32cf6b8dbce4a797 Mon Sep 17 00:00:00 2001 From: Li Heng Date: Thu, 30 Jul 2020 11:31:57 +0800 Subject: scsi: qla2xxx: Remove superfluous memset() Fixes coccicheck warning: ./drivers/scsi/qla2xxx/qla_mbx.c:4928:15-33: WARNING: dma_alloc_coherent use in els_cmd_map already zeroes out memory, so memset is not needed dma_alloc_coherent() already zeroes out memory so memset() is not needed. Link: https://lore.kernel.org/r/1596079918-41115-3-git-send-email-liheng40@huawei.com Signed-off-by: Li Heng Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_mbx.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 73883435ab58..14656da20d07 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -4933,8 +4933,6 @@ qla25xx_set_els_cmds_supported(scsi_qla_host_t *vha) return QLA_MEMORY_ALLOC_FAILED; } - memset(els_cmd_map, 0, ELS_CMD_MAP_SIZE); - /* List of Purex ELS */ cmd_opcode[0] = ELS_FPIN; cmd_opcode[1] = ELS_RDP; -- cgit v1.2.3 From 4a636e9c7a2107b9a590f08d6f8f8a917e6b85de Mon Sep 17 00:00:00 2001 From: Li Heng Date: Thu, 30 Jul 2020 11:31:58 +0800 Subject: scsi: mpt3sas: Remove superfluous memset() Fixes coccicheck warning: ./drivers/scsi/mpt3sas/mpt3sas_base.c:5247:16-34: WARNING: dma_alloc_coherent use in ioc -> request already zeroes out memory, so memset is not needed dma_alloc_coherent() already zeroes out memory so memset() is not needed. Link: https://lore.kernel.org/r/1596079918-41115-4-git-send-email-liheng40@huawei.com Signed-off-by: Li Heng Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 53a835b37fa9..4aae441211bd 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -5259,7 +5259,6 @@ _base_allocate_memory_pools(struct MPT3SAS_ADAPTER *ioc) _base_release_memory_pools(ioc); goto retry_allocation; } - memset(ioc->request, 0, sz); if (retry_sz) ioc_err(ioc, "request pool: dma_alloc_coherent succeed: hba_depth(%d), chains_per_io(%d), frame_sz(%d), total(%d kb)\n", -- cgit v1.2.3 From ca358af1d1bb5b9eb75f3998b20ab68f6b3ce69c Mon Sep 17 00:00:00 2001 From: Andy Shevchenko Date: Thu, 30 Jul 2020 18:35:35 +0300 Subject: scsi: dc395x: Use %*ph to print small buffer Use %*ph format to print small buffer as hex string. Link: https://lore.kernel.org/r/20200730153535.39691-1-andriy.shevchenko@linux.intel.com Signed-off-by: Andy Shevchenko Signed-off-by: Martin K. Petersen --- drivers/scsi/dc395x.c | 10 ++-------- 1 file changed, 2 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c index 37c6cc374079..434758dde9b4 100644 --- a/drivers/scsi/dc395x.c +++ b/drivers/scsi/dc395x.c @@ -4504,14 +4504,8 @@ static int dc395x_show_info(struct seq_file *m, struct Scsi_Host *host) /*seq_printf(m, "\n"); */ seq_printf(m, "Nr of DCBs: %i\n", list_size(&acb->dcb_list)); - seq_printf(m, "Map of attached LUNs: %02x %02x %02x %02x %02x %02x %02x %02x\n", - acb->dcb_map[0], acb->dcb_map[1], acb->dcb_map[2], - acb->dcb_map[3], acb->dcb_map[4], acb->dcb_map[5], - acb->dcb_map[6], acb->dcb_map[7]); - seq_printf(m, " %02x %02x %02x %02x %02x %02x %02x %02x\n", - acb->dcb_map[8], acb->dcb_map[9], acb->dcb_map[10], - acb->dcb_map[11], acb->dcb_map[12], acb->dcb_map[13], - acb->dcb_map[14], acb->dcb_map[15]); + seq_printf(m, "Map of attached LUNs: %8ph\n", &acb->dcb_map[0]); + seq_printf(m, " %8ph\n", &acb->dcb_map[8]); seq_puts(m, "Un ID LUN Prty Sync Wide DsCn SndS TagQ nego_period SyncFreq SyncOffs MaxCmd\n"); -- cgit v1.2.3 From ee9108fedf63c6b8cfc40767c472680d51dd1662 Mon Sep 17 00:00:00 2001 From: Denis Efremov Date: Sat, 1 Aug 2020 16:31:23 +0300 Subject: scsi: libcxgbi: Use kvzalloc instead of opencoded kzalloc/vzalloc Remove cxgbi_alloc_big_mem(), cxgbi_free_big_mem() functions and use kvzalloc/kvfree instead. __GFP_NOWARN added to kvzalloc() call because we already print a warning in case of allocation fail. Link: https://lore.kernel.org/r/20200801133123.61834-1-efremov@linux.com Signed-off-by: Denis Efremov Signed-off-by: Martin K. Petersen --- drivers/scsi/cxgbi/libcxgbi.c | 8 ++++---- drivers/scsi/cxgbi/libcxgbi.h | 16 ---------------- 2 files changed, 4 insertions(+), 20 deletions(-) diff --git a/drivers/scsi/cxgbi/libcxgbi.c b/drivers/scsi/cxgbi/libcxgbi.c index 71aebaf533ea..13781d8c574f 100644 --- a/drivers/scsi/cxgbi/libcxgbi.c +++ b/drivers/scsi/cxgbi/libcxgbi.c @@ -77,9 +77,9 @@ int cxgbi_device_portmap_create(struct cxgbi_device *cdev, unsigned int base, { struct cxgbi_ports_map *pmap = &cdev->pmap; - pmap->port_csk = cxgbi_alloc_big_mem(max_conn * - sizeof(struct cxgbi_sock *), - GFP_KERNEL); + pmap->port_csk = kvzalloc(array_size(max_conn, + sizeof(struct cxgbi_sock *)), + GFP_KERNEL | __GFP_NOWARN); if (!pmap->port_csk) { pr_warn("cdev 0x%p, portmap OOM %u.\n", cdev, max_conn); return -ENOMEM; @@ -124,7 +124,7 @@ static inline void cxgbi_device_destroy(struct cxgbi_device *cdev) if (cdev->cdev2ppm) cxgbi_ppm_release(cdev->cdev2ppm(cdev)); if (cdev->pmap.max_connect) - cxgbi_free_big_mem(cdev->pmap.port_csk); + kvfree(cdev->pmap.port_csk); kfree(cdev); } diff --git a/drivers/scsi/cxgbi/libcxgbi.h b/drivers/scsi/cxgbi/libcxgbi.h index fc7255fefcd3..3687b5c0cf90 100644 --- a/drivers/scsi/cxgbi/libcxgbi.h +++ b/drivers/scsi/cxgbi/libcxgbi.h @@ -575,22 +575,6 @@ struct cxgbi_iso_info { u32 buffer_offset; }; -static inline void *cxgbi_alloc_big_mem(unsigned int size, - gfp_t gfp) -{ - void *p = kzalloc(size, gfp | __GFP_NOWARN); - - if (!p) - p = vzalloc(size); - - return p; -} - -static inline void cxgbi_free_big_mem(void *addr) -{ - kvfree(addr); -} - static inline void cxgbi_set_iscsi_ipv4(struct cxgbi_hba *chba, __be32 ipaddr) { if (chba->cdev->flags & CXGBI_FLAG_IPV4_SET) -- cgit v1.2.3 From e555cd5f17bed2e727215e917acfd785e3898e8c Mon Sep 17 00:00:00 2001 From: Suraj Upadhyay Date: Wed, 29 Jul 2020 23:36:27 +0530 Subject: scsi: aacraid: Remove pci-dma-compat wrapper API The legacy API wrappers in include/linux/pci-dma-compat.h should go away as they create unnecessary midlayering for include/linux/dma-mapping.h API. Instead use dma-mapping.h API directly. The patch has been generated with the coccinelle script below. Compile-tested. @@@@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@@@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@@@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@@@ - PCI_DMA_NONE + DMA_NONE @@ expression E1, E2, E3; @@ - pci_alloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3; @@ - pci_zalloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3, E4; @@ - pci_free_consistent(E1, E2, E3, E4) + dma_free_coherent(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_single(E1, E2, E3, E4) + dma_map_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_single(E1, E2, E3, E4) + dma_unmap_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4, E5; @@ - pci_map_page(E1, E2, E3, E4, E5) + dma_map_page(&E1->dev, E2, E3, E4, E5) @@ expression E1, E2, E3, E4; @@ - pci_unmap_page(E1, E2, E3, E4) + dma_unmap_page(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_sg(E1, E2, E3, E4) + dma_map_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_sg(E1, E2, E3, E4) + dma_unmap_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_cpu(E1, E2, E3, E4) + dma_sync_single_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_device(E1, E2, E3, E4) + dma_sync_single_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_cpu(E1, E2, E3, E4) + dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_device(E1, E2, E3, E4) + dma_sync_sg_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2; @@ - pci_dma_mapping_error(E1, E2) + dma_mapping_error(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_consistent_dma_mask(E1, E2) + dma_set_coherent_mask(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_dma_mask(E1, E2) + dma_set_mask(&E1->dev, E2) Link: https://lore.kernel.org/r/f8d4778440d55ba26c04eef0f7d63fb211a39443.1596045683.git.usuraj35@gmail.com Signed-off-by: Suraj Upadhyay Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aachba.c | 4 ++-- drivers/scsi/aacraid/commctrl.c | 20 +++++++++++--------- drivers/scsi/aacraid/commsup.c | 8 ++++---- drivers/scsi/aacraid/linit.c | 4 ++-- 4 files changed, 19 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 769af4ca9ca9..959b3ae8a99e 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -2229,10 +2229,10 @@ int aac_get_adapter_info(struct aac_dev* dev) } if (dev->dac_support) { - if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(64))) { + if (!dma_set_mask(&dev->pdev->dev, DMA_BIT_MASK(64))) { if (!dev->in_reset) dev_info(&dev->pdev->dev, "64 Bit DAC enabled\n"); - } else if (!pci_set_dma_mask(dev->pdev, DMA_BIT_MASK(32))) { + } else if (!dma_set_mask(&dev->pdev->dev, DMA_BIT_MASK(32))) { dev_info(&dev->pdev->dev, "DMA mask set failed, 64 Bit DAC disabled\n"); dev->dac_support = 0; } else { diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index 59e82a832042..e3e157a74988 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -670,8 +670,8 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) goto cleanup; } } - addr = pci_map_single(dev->pdev, p, sg_count[i], - data_dir); + addr = dma_map_single(&dev->pdev->dev, p, sg_count[i], + data_dir); hbacmd->sge[i].addr_hi = cpu_to_le32((u32)(addr>>32)); hbacmd->sge[i].addr_lo = cpu_to_le32( (u32)(addr & 0xffffffff)); @@ -732,8 +732,8 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) goto cleanup; } } - addr = pci_map_single(dev->pdev, p, - sg_count[i], data_dir); + addr = dma_map_single(&dev->pdev->dev, p, + sg_count[i], data_dir); psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff); psg->sg[i].addr[1] = cpu_to_le32(addr>>32); @@ -788,8 +788,8 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) goto cleanup; } } - addr = pci_map_single(dev->pdev, p, - sg_count[i], data_dir); + addr = dma_map_single(&dev->pdev->dev, p, + sg_count[i], data_dir); psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff); psg->sg[i].addr[1] = cpu_to_le32(addr>>32); @@ -844,7 +844,9 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) goto cleanup; } } - addr = pci_map_single(dev->pdev, p, usg->sg[i].count, data_dir); + addr = dma_map_single(&dev->pdev->dev, p, + usg->sg[i].count, + data_dir); psg->sg[i].addr = cpu_to_le32(addr & 0xffffffff); byte_count += usg->sg[i].count; @@ -883,8 +885,8 @@ static int aac_send_raw_srb(struct aac_dev* dev, void __user * arg) goto cleanup; } } - addr = pci_map_single(dev->pdev, p, - sg_count[i], data_dir); + addr = dma_map_single(&dev->pdev->dev, p, + sg_count[i], data_dir); psg->sg[i].addr = cpu_to_le32(addr); byte_count += sg_count[i]; diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index adbdc3b7c7a7..7c0710417d37 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1561,15 +1561,15 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) dmamask = DMA_BIT_MASK(32); quirks = aac_get_driver_ident(index)->quirks; if (quirks & AAC_QUIRK_31BIT) - retval = pci_set_dma_mask(aac->pdev, dmamask); + retval = dma_set_mask(&aac->pdev->dev, dmamask); else if (!(quirks & AAC_QUIRK_SRC)) - retval = pci_set_dma_mask(aac->pdev, dmamask); + retval = dma_set_mask(&aac->pdev->dev, dmamask); else - retval = pci_set_consistent_dma_mask(aac->pdev, dmamask); + retval = dma_set_coherent_mask(&aac->pdev->dev, dmamask); if (quirks & AAC_QUIRK_31BIT && !retval) { dmamask = DMA_BIT_MASK(31); - retval = pci_set_consistent_dma_mask(aac->pdev, dmamask); + retval = dma_set_coherent_mask(&aac->pdev->dev, dmamask); } if (retval) diff --git a/drivers/scsi/aacraid/linit.c b/drivers/scsi/aacraid/linit.c index 8588da0a0655..7d99f7155a13 100644 --- a/drivers/scsi/aacraid/linit.c +++ b/drivers/scsi/aacraid/linit.c @@ -1659,7 +1659,7 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) goto out; if (!(aac_drivers[index].quirks & AAC_QUIRK_SRC)) { - error = pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + error = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); if (error) { dev_err(&pdev->dev, "PCI 32 BIT dma mask set failed"); goto out_disable_pdev; @@ -1678,7 +1678,7 @@ static int aac_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) mask_bits = 32; } - error = pci_set_consistent_dma_mask(pdev, dmamask); + error = dma_set_coherent_mask(&pdev->dev, dmamask); if (error) { dev_err(&pdev->dev, "PCI %d B consistent dma mask set failed\n" , mask_bits); -- cgit v1.2.3 From daf4b00b75769e49ed05e9ad3a812ffaf0045983 Mon Sep 17 00:00:00 2001 From: Suraj Upadhyay Date: Wed, 29 Jul 2020 23:37:24 +0530 Subject: scsi: aic7xxx: Remove pci-dma-compat wrapper API The legacy API wrappers in include/linux/pci-dma-compat.h should go away as they create unnecessary midlayering for include/linux/dma-mapping.h API. Instead use dma-mapping.h API directly. The patch has been generated with the coccinelle script below. And has been hand modified to replace each GFP_ with the correct flag depending upon the context. Compile-tested. @@@@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@@@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@@@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@@@ - PCI_DMA_NONE + DMA_NONE @@ expression E1, E2, E3; @@ - pci_alloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3; @@ - pci_zalloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3, E4; @@ - pci_free_consistent(E1, E2, E3, E4) + dma_free_coherent(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_single(E1, E2, E3, E4) + dma_map_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_single(E1, E2, E3, E4) + dma_unmap_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4, E5; @@ - pci_map_page(E1, E2, E3, E4, E5) + dma_map_page(&E1->dev, E2, E3, E4, E5) @@ expression E1, E2, E3, E4; @@ - pci_unmap_page(E1, E2, E3, E4) + dma_unmap_page(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_sg(E1, E2, E3, E4) + dma_map_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_sg(E1, E2, E3, E4) + dma_unmap_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_cpu(E1, E2, E3, E4) + dma_sync_single_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_device(E1, E2, E3, E4) + dma_sync_single_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_cpu(E1, E2, E3, E4) + dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_device(E1, E2, E3, E4) + dma_sync_sg_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2; @@ - pci_dma_mapping_error(E1, E2) + dma_mapping_error(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_consistent_dma_mask(E1, E2) + dma_set_coherent_mask(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_dma_mask(E1, E2) + dma_set_mask(&E1->dev, E2) Link: https://lore.kernel.org/r/790a8751b5c2b5393c3021b8def08e47bb1597c0.1596045683.git.usuraj35@gmail.com Signed-off-by: Suraj Upadhyay Signed-off-by: Martin K. Petersen --- drivers/scsi/aic7xxx/aic79xx_osm.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_osm.c b/drivers/scsi/aic7xxx/aic79xx_osm.c index d019e3f2bb9b..7599eec08bf2 100644 --- a/drivers/scsi/aic7xxx/aic79xx_osm.c +++ b/drivers/scsi/aic7xxx/aic79xx_osm.c @@ -952,8 +952,8 @@ int ahd_dmamem_alloc(struct ahd_softc *ahd, bus_dma_tag_t dmat, void** vaddr, int flags, bus_dmamap_t *mapp) { - *vaddr = pci_alloc_consistent(ahd->dev_softc, - dmat->maxsize, mapp); + *vaddr = dma_alloc_coherent(&ahd->dev_softc->dev, dmat->maxsize, mapp, + GFP_ATOMIC); if (*vaddr == NULL) return (ENOMEM); return(0); @@ -963,8 +963,7 @@ void ahd_dmamem_free(struct ahd_softc *ahd, bus_dma_tag_t dmat, void* vaddr, bus_dmamap_t map) { - pci_free_consistent(ahd->dev_softc, dmat->maxsize, - vaddr, map); + dma_free_coherent(&ahd->dev_softc->dev, dmat->maxsize, vaddr, map); } int -- cgit v1.2.3 From ece0eeff4c729b556e656e83f2b06c1f6db5a164 Mon Sep 17 00:00:00 2001 From: Suraj Upadhyay Date: Wed, 29 Jul 2020 23:38:55 +0530 Subject: scsi: dc395x: Remove pci-dma-compat wrapper API The legacy API wrappers in include/linux/pci-dma-compat.h should go away as they create unnecessary midlayering for include/linux/dma-mapping.h API. Instead use dma-mapping.h API directly. The patch has been generated with the coccinelle script below. Compile tested. @@@@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@@@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@@@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@@@ - PCI_DMA_NONE + DMA_NONE @@ expression E1, E2, E3; @@ - pci_alloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3; @@ - pci_zalloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3, E4; @@ - pci_free_consistent(E1, E2, E3, E4) + dma_free_coherent(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_single(E1, E2, E3, E4) + dma_map_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_single(E1, E2, E3, E4) + dma_unmap_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4, E5; @@ - pci_map_page(E1, E2, E3, E4, E5) + dma_map_page(&E1->dev, E2, E3, E4, E5) @@ expression E1, E2, E3, E4; @@ - pci_unmap_page(E1, E2, E3, E4) + dma_unmap_page(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_sg(E1, E2, E3, E4) + dma_map_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_sg(E1, E2, E3, E4) + dma_unmap_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_cpu(E1, E2, E3, E4) + dma_sync_single_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_device(E1, E2, E3, E4) + dma_sync_single_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_cpu(E1, E2, E3, E4) + dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_device(E1, E2, E3, E4) + dma_sync_sg_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2; @@ - pci_dma_mapping_error(E1, E2) + dma_mapping_error(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_consistent_dma_mask(E1, E2) + dma_set_coherent_mask(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_dma_mask(E1, E2) + dma_set_mask(&E1->dev, E2) Link: https://lore.kernel.org/r/b8acc51ec774507050a9e9e8edf28e4933322a9e.1596045683.git.usuraj35@gmail.com Signed-off-by: Suraj Upadhyay Signed-off-by: Martin K. Petersen --- drivers/scsi/dc395x.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/dc395x.c b/drivers/scsi/dc395x.c index 434758dde9b4..0c251a3b99b7 100644 --- a/drivers/scsi/dc395x.c +++ b/drivers/scsi/dc395x.c @@ -902,7 +902,7 @@ static void build_srb(struct scsi_cmnd *cmd, struct DeviceCtlBlk *dcb, nseg = scsi_dma_map(cmd); BUG_ON(nseg < 0); - if (dir == PCI_DMA_NONE || !nseg) { + if (dir == DMA_NONE || !nseg) { dprintkdbg(DBG_0, "build_srb: [0] len=%d buf=%p use_sg=%d !MAP=%08x\n", cmd->bufflen, scsi_sglist(cmd), scsi_sg_count(cmd), @@ -3135,7 +3135,7 @@ static void pci_unmap_srb(struct AdapterCtlBlk *acb, struct ScsiReqBlk *srb) struct scsi_cmnd *cmd = srb->cmd; enum dma_data_direction dir = cmd->sc_data_direction; - if (scsi_sg_count(cmd) && dir != PCI_DMA_NONE) { + if (scsi_sg_count(cmd) && dir != DMA_NONE) { /* unmap DC395x SG list */ dprintkdbg(DBG_SG, "pci_unmap_srb: list=%08x(%05x)\n", srb->sg_bus_addr, SEGMENTX_LEN); @@ -3333,7 +3333,7 @@ static void srb_done(struct AdapterCtlBlk *acb, struct DeviceCtlBlk *dcb, if (!ckc_only && (cmd->result & RES_DID) == 0 && cmd->cmnd[2] == 0 && scsi_bufflen(cmd) >= 8 - && dir != PCI_DMA_NONE && ptr && (ptr->Vers & 0x07) >= 2) + && dir != DMA_NONE && ptr && (ptr->Vers & 0x07) >= 2) dcb->inquiry7 = ptr->Flags; /*if( srb->cmd->cmnd[0] == INQUIRY && */ -- cgit v1.2.3 From a5a20c4a294ed3ecfe5f22f1232ce6ad2430a7d9 Mon Sep 17 00:00:00 2001 From: Suraj Upadhyay Date: Wed, 29 Jul 2020 23:40:21 +0530 Subject: scsi: mpt3sas: Remove pci-dma-compat wrapper API The legacy API wrappers in include/linux/pci-dma-compat.h should go away as they create unnecessary midlayering for include/linux/dma-mapping.h API. Instead use dma-mapping.h API directly. The patch has been generated with the coccinelle script below. Compile tested. @@@@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@@@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@@@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@@@ - PCI_DMA_NONE + DMA_NONE @@ expression E1, E2, E3; @@ - pci_alloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3; @@ - pci_zalloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3, E4; @@ - pci_free_consistent(E1, E2, E3, E4) + dma_free_coherent(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_single(E1, E2, E3, E4) + dma_map_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_single(E1, E2, E3, E4) + dma_unmap_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4, E5; @@ - pci_map_page(E1, E2, E3, E4, E5) + dma_map_page(&E1->dev, E2, E3, E4, E5) @@ expression E1, E2, E3, E4; @@ - pci_unmap_page(E1, E2, E3, E4) + dma_unmap_page(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_sg(E1, E2, E3, E4) + dma_map_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_sg(E1, E2, E3, E4) + dma_unmap_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_cpu(E1, E2, E3, E4) + dma_sync_single_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_device(E1, E2, E3, E4) + dma_sync_single_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_cpu(E1, E2, E3, E4) + dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_device(E1, E2, E3, E4) + dma_sync_sg_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2; @@ - pci_dma_mapping_error(E1, E2) + dma_mapping_error(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_consistent_dma_mask(E1, E2) + dma_set_coherent_mask(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_dma_mask(E1, E2) + dma_set_mask(&E1->dev, E2) Link: https://lore.kernel.org/r/e825ac7108092cc8fa8d462dc702098ef10fc6a2.1596045683.git.usuraj35@gmail.com Signed-off-by: Suraj Upadhyay Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_ctl.c | 10 ++++------ 1 file changed, 4 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_ctl.c b/drivers/scsi/mpt3sas/mpt3sas_ctl.c index 194ac9d03bc9..5c32dbb8b2f0 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_ctl.c +++ b/drivers/scsi/mpt3sas/mpt3sas_ctl.c @@ -3386,12 +3386,10 @@ host_trace_buffer_enable_store(struct device *cdev, && (ioc->diag_buffer_status[MPI2_DIAG_BUF_TYPE_TRACE] & MPT3_DIAG_BUFFER_IS_APP_OWNED)) { - pci_free_consistent(ioc->pdev, - ioc->diag_buffer_sz[ - MPI2_DIAG_BUF_TYPE_TRACE], - ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE], - ioc->diag_buffer_dma[ - MPI2_DIAG_BUF_TYPE_TRACE]); + dma_free_coherent(&ioc->pdev->dev, + ioc->diag_buffer_sz[MPI2_DIAG_BUF_TYPE_TRACE], + ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE], + ioc->diag_buffer_dma[MPI2_DIAG_BUF_TYPE_TRACE]); ioc->diag_buffer[MPI2_DIAG_BUF_TYPE_TRACE] = NULL; } -- cgit v1.2.3 From 8f31fa53d36b96a9e6a0b6940571baed459b6fc3 Mon Sep 17 00:00:00 2001 From: Suraj Upadhyay Date: Wed, 29 Jul 2020 23:41:18 +0530 Subject: scsi: hpsa: Remove pci-dma-compat wrapper API The legacy API wrappers in include/linux/pci-dma-compat.h should go away as they create unnecessary midlayering for include/linux/dma-mapping.h API. Instead use dma-mapping.h API directly. The patch has been generated with the coccinelle script below. Compile tested. @@@@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@@@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@@@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@@@ - PCI_DMA_NONE + DMA_NONE @@ expression E1, E2, E3; @@ - pci_alloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3; @@ - pci_zalloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3, E4; @@ - pci_free_consistent(E1, E2, E3, E4) + dma_free_coherent(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_single(E1, E2, E3, E4) + dma_map_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_single(E1, E2, E3, E4) + dma_unmap_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4, E5; @@ - pci_map_page(E1, E2, E3, E4, E5) + dma_map_page(&E1->dev, E2, E3, E4, E5) @@ expression E1, E2, E3, E4; @@ - pci_unmap_page(E1, E2, E3, E4) + dma_unmap_page(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_sg(E1, E2, E3, E4) + dma_map_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_sg(E1, E2, E3, E4) + dma_unmap_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_cpu(E1, E2, E3, E4) + dma_sync_single_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_device(E1, E2, E3, E4) + dma_sync_single_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_cpu(E1, E2, E3, E4) + dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_device(E1, E2, E3, E4) + dma_sync_sg_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2; @@ - pci_dma_mapping_error(E1, E2) + dma_mapping_error(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_consistent_dma_mask(E1, E2) + dma_set_coherent_mask(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_dma_mask(E1, E2) + dma_set_mask(&E1->dev, E2) Link: https://lore.kernel.org/r/37154a4efe82a58b9bad143608dd9fd37a2c94e5.1596045683.git.usuraj35@gmail.com Signed-off-by: Suraj Upadhyay Signed-off-by: Martin K. Petersen --- drivers/scsi/hpsa.c | 16 ++++++++-------- 1 file changed, 8 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index 91794a50b31f..ff87dac85846 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -9329,10 +9329,10 @@ static int hpsa_enter_performant_mode(struct ctlr_info *h, u32 trans_support) static void hpsa_free_ioaccel1_cmd_and_bft(struct ctlr_info *h) { if (h->ioaccel_cmd_pool) { - pci_free_consistent(h->pdev, - h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), - h->ioaccel_cmd_pool, - h->ioaccel_cmd_pool_dhandle); + dma_free_coherent(&h->pdev->dev, + h->nr_cmds * sizeof(*h->ioaccel_cmd_pool), + h->ioaccel_cmd_pool, + h->ioaccel_cmd_pool_dhandle); h->ioaccel_cmd_pool = NULL; h->ioaccel_cmd_pool_dhandle = 0; } @@ -9382,10 +9382,10 @@ static void hpsa_free_ioaccel2_cmd_and_bft(struct ctlr_info *h) hpsa_free_ioaccel2_sg_chain_blocks(h); if (h->ioaccel2_cmd_pool) { - pci_free_consistent(h->pdev, - h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), - h->ioaccel2_cmd_pool, - h->ioaccel2_cmd_pool_dhandle); + dma_free_coherent(&h->pdev->dev, + h->nr_cmds * sizeof(*h->ioaccel2_cmd_pool), + h->ioaccel2_cmd_pool, + h->ioaccel2_cmd_pool_dhandle); h->ioaccel2_cmd_pool = NULL; h->ioaccel2_cmd_pool_dhandle = 0; } -- cgit v1.2.3 From 8d1f1ffaeb27ca81ea0dd24e238015efee7b5924 Mon Sep 17 00:00:00 2001 From: Suraj Upadhyay Date: Wed, 29 Jul 2020 23:42:40 +0530 Subject: scsi: qla2xxx: Remove pci-dma-compat wrapper API The legacy API wrappers in include/linux/pci-dma-compat.h should go away as they create unnecessary midlayering for include/linux/dma-mapping.h API. Instead use dma-mapping.h API directly. The patch has been generated with the coccinelle script below. Compile tested. @@@@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@@@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@@@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@@@ - PCI_DMA_NONE + DMA_NONE @@ expression E1, E2, E3; @@ - pci_alloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3; @@ - pci_zalloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3, E4; @@ - pci_free_consistent(E1, E2, E3, E4) + dma_free_coherent(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_single(E1, E2, E3, E4) + dma_map_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_single(E1, E2, E3, E4) + dma_unmap_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4, E5; @@ - pci_map_page(E1, E2, E3, E4, E5) + dma_map_page(&E1->dev, E2, E3, E4, E5) @@ expression E1, E2, E3, E4; @@ - pci_unmap_page(E1, E2, E3, E4) + dma_unmap_page(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_sg(E1, E2, E3, E4) + dma_map_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_sg(E1, E2, E3, E4) + dma_unmap_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_cpu(E1, E2, E3, E4) + dma_sync_single_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_device(E1, E2, E3, E4) + dma_sync_single_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_cpu(E1, E2, E3, E4) + dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_device(E1, E2, E3, E4) + dma_sync_sg_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2; @@ - pci_dma_mapping_error(E1, E2) + dma_mapping_error(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_consistent_dma_mask(E1, E2) + dma_set_coherent_mask(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_dma_mask(E1, E2) + dma_set_mask(&E1->dev, E2) Link: https://lore.kernel.org/r/24627a86cf1e67fd229bc323316523d1ba0811f9.1596045683.git.usuraj35@gmail.com Signed-off-by: Suraj Upadhyay Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_os.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 9b59f032a569..8b4e3da1de5a 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -1885,7 +1885,7 @@ qla2x00_config_dma_addressing(struct qla_hw_data *ha) if (!dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) { /* Any upper-dword bits set? */ if (MSD(dma_get_required_mask(&ha->pdev->dev)) && - !pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(64))) { + !dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(64))) { /* Ok, a 64bit DMA mask is applicable. */ ha->flags.enable_64bit_addressing = 1; ha->isp_ops->calc_req_entries = qla2x00_calc_iocbs_64; @@ -1895,7 +1895,7 @@ qla2x00_config_dma_addressing(struct qla_hw_data *ha) } dma_set_mask(&ha->pdev->dev, DMA_BIT_MASK(32)); - pci_set_consistent_dma_mask(ha->pdev, DMA_BIT_MASK(32)); + dma_set_coherent_mask(&ha->pdev->dev, DMA_BIT_MASK(32)); } static void -- cgit v1.2.3 From ec090ef8cd1c23008bc641a48ccfead23e46ede4 Mon Sep 17 00:00:00 2001 From: Suraj Upadhyay Date: Wed, 29 Jul 2020 23:44:33 +0530 Subject: scsi: megaraid: Remove pci-dma-compat wrapper API The legacy API wrappers in include/linux/pci-dma-compat.h should go away as they create unnecessary midlayering for include/linux/dma-mapping.h API. Instead use dma-mapping.h API directly. The patch has been generated with the coccinelle script below. And has been hand modified to replace each GFP_ with a correct flag depending upon the context. Compile tested. @@@@ - PCI_DMA_BIDIRECTIONAL + DMA_BIDIRECTIONAL @@@@ - PCI_DMA_TODEVICE + DMA_TO_DEVICE @@@@ - PCI_DMA_FROMDEVICE + DMA_FROM_DEVICE @@@@ - PCI_DMA_NONE + DMA_NONE @@ expression E1, E2, E3; @@ - pci_alloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3; @@ - pci_zalloc_consistent(E1, E2, E3) + dma_alloc_coherent(&E1->dev, E2, E3, GFP_) @@ expression E1, E2, E3, E4; @@ - pci_free_consistent(E1, E2, E3, E4) + dma_free_coherent(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_single(E1, E2, E3, E4) + dma_map_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_single(E1, E2, E3, E4) + dma_unmap_single(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4, E5; @@ - pci_map_page(E1, E2, E3, E4, E5) + dma_map_page(&E1->dev, E2, E3, E4, E5) @@ expression E1, E2, E3, E4; @@ - pci_unmap_page(E1, E2, E3, E4) + dma_unmap_page(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_map_sg(E1, E2, E3, E4) + dma_map_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_unmap_sg(E1, E2, E3, E4) + dma_unmap_sg(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_cpu(E1, E2, E3, E4) + dma_sync_single_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_single_for_device(E1, E2, E3, E4) + dma_sync_single_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_cpu(E1, E2, E3, E4) + dma_sync_sg_for_cpu(&E1->dev, E2, E3, E4) @@ expression E1, E2, E3, E4; @@ - pci_dma_sync_sg_for_device(E1, E2, E3, E4) + dma_sync_sg_for_device(&E1->dev, E2, E3, E4) @@ expression E1, E2; @@ - pci_dma_mapping_error(E1, E2) + dma_mapping_error(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_consistent_dma_mask(E1, E2) + dma_set_coherent_mask(&E1->dev, E2) @@ expression E1, E2; @@ - pci_set_dma_mask(E1, E2) + dma_set_mask(&E1->dev, E2) Link: https://lore.kernel.org/r/635cfc08b83a041708ee6afbc430087416f2605c.1596045683.git.usuraj35@gmail.com Signed-off-by: Suraj Upadhyay Signed-off-by: Martin K. Petersen --- drivers/scsi/megaraid.c | 192 +++++++++++++++++++++++++----------------------- 1 file changed, 102 insertions(+), 90 deletions(-) diff --git a/drivers/scsi/megaraid.c b/drivers/scsi/megaraid.c index 0484ee52ae80..9276fed527fa 100644 --- a/drivers/scsi/megaraid.c +++ b/drivers/scsi/megaraid.c @@ -133,8 +133,10 @@ mega_setup_mailbox(adapter_t *adapter) { unsigned long align; - adapter->una_mbox64 = pci_alloc_consistent(adapter->dev, - sizeof(mbox64_t), &adapter->una_mbox64_dma); + adapter->una_mbox64 = dma_alloc_coherent(&adapter->dev->dev, + sizeof(mbox64_t), + &adapter->una_mbox64_dma, + GFP_KERNEL); if( !adapter->una_mbox64 ) return -1; @@ -222,8 +224,9 @@ mega_query_adapter(adapter_t *adapter) mraid_inquiry *inq; dma_addr_t dma_handle; - ext_inq = pci_alloc_consistent(adapter->dev, - sizeof(mraid_ext_inquiry), &dma_handle); + ext_inq = dma_alloc_coherent(&adapter->dev->dev, + sizeof(mraid_ext_inquiry), + &dma_handle, GFP_KERNEL); if( ext_inq == NULL ) return -1; @@ -243,8 +246,9 @@ mega_query_adapter(adapter_t *adapter) mega_8_to_40ld(inq, inquiry3, (mega_product_info *)&adapter->product_info); - pci_free_consistent(adapter->dev, sizeof(mraid_ext_inquiry), - ext_inq, dma_handle); + dma_free_coherent(&adapter->dev->dev, + sizeof(mraid_ext_inquiry), ext_inq, + dma_handle); } else { /*adapter supports 40ld */ adapter->flag |= BOARD_40LD; @@ -253,9 +257,10 @@ mega_query_adapter(adapter_t *adapter) * get product_info, which is static information and will be * unchanged */ - prod_info_dma_handle = pci_map_single(adapter->dev, (void *) - &adapter->product_info, - sizeof(mega_product_info), PCI_DMA_FROMDEVICE); + prod_info_dma_handle = dma_map_single(&adapter->dev->dev, + (void *)&adapter->product_info, + sizeof(mega_product_info), + DMA_FROM_DEVICE); mbox->m_out.xferaddr = prod_info_dma_handle; @@ -267,8 +272,8 @@ mega_query_adapter(adapter_t *adapter) "Product_info cmd failed with error: %d\n", retval); - pci_unmap_single(adapter->dev, prod_info_dma_handle, - sizeof(mega_product_info), PCI_DMA_FROMDEVICE); + dma_unmap_single(&adapter->dev->dev, prod_info_dma_handle, + sizeof(mega_product_info), DMA_FROM_DEVICE); } @@ -645,7 +650,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy) scb->raw_mbox[2] = MEGA_RESERVATION_STATUS; scb->raw_mbox[3] = ldrv_num; - scb->dma_direction = PCI_DMA_NONE; + scb->dma_direction = DMA_NONE; return scb; #else @@ -709,7 +714,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy) mbox->m_out.cmd = MEGA_MBOXCMD_PASSTHRU; } - scb->dma_direction = PCI_DMA_FROMDEVICE; + scb->dma_direction = DMA_FROM_DEVICE; pthru->numsgelements = mega_build_sglist(adapter, scb, &pthru->dataxferaddr, &pthru->dataxferlen); @@ -839,10 +844,10 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy) * If it is a read command */ if( (*cmd->cmnd & 0x0F) == 0x08 ) { - scb->dma_direction = PCI_DMA_FROMDEVICE; + scb->dma_direction = DMA_FROM_DEVICE; } else { - scb->dma_direction = PCI_DMA_TODEVICE; + scb->dma_direction = DMA_TO_DEVICE; } /* Calculate Scatter-Gather info */ @@ -877,7 +882,7 @@ mega_build_cmd(adapter_t *adapter, struct scsi_cmnd *cmd, int *busy) scb->raw_mbox[3] = ldrv_num; - scb->dma_direction = PCI_DMA_NONE; + scb->dma_direction = DMA_NONE; return scb; #endif @@ -971,7 +976,7 @@ mega_prepare_passthru(adapter_t *adapter, scb_t *scb, struct scsi_cmnd *cmd, memcpy(pthru->cdb, cmd->cmnd, cmd->cmd_len); /* Not sure about the direction */ - scb->dma_direction = PCI_DMA_BIDIRECTIONAL; + scb->dma_direction = DMA_BIDIRECTIONAL; /* Special Code for Handling READ_CAPA/ INQ using bounce buffers */ switch (cmd->cmnd[0]) { @@ -1035,7 +1040,7 @@ mega_prepare_extpassthru(adapter_t *adapter, scb_t *scb, memcpy(epthru->cdb, cmd->cmnd, cmd->cmd_len); /* Not sure about the direction */ - scb->dma_direction = PCI_DMA_BIDIRECTIONAL; + scb->dma_direction = DMA_BIDIRECTIONAL; switch(cmd->cmnd[0]) { case INQUIRY: @@ -1813,25 +1818,25 @@ mega_free_sgl(adapter_t *adapter) scb = &adapter->scb_list[i]; if( scb->sgl64 ) { - pci_free_consistent(adapter->dev, - sizeof(mega_sgl64) * adapter->sglen, - scb->sgl64, - scb->sgl_dma_addr); + dma_free_coherent(&adapter->dev->dev, + sizeof(mega_sgl64) * adapter->sglen, + scb->sgl64, scb->sgl_dma_addr); scb->sgl64 = NULL; } if( scb->pthru ) { - pci_free_consistent(adapter->dev, sizeof(mega_passthru), - scb->pthru, scb->pthru_dma_addr); + dma_free_coherent(&adapter->dev->dev, + sizeof(mega_passthru), scb->pthru, + scb->pthru_dma_addr); scb->pthru = NULL; } if( scb->epthru ) { - pci_free_consistent(adapter->dev, - sizeof(mega_ext_passthru), - scb->epthru, scb->epthru_dma_addr); + dma_free_coherent(&adapter->dev->dev, + sizeof(mega_ext_passthru), + scb->epthru, scb->epthru_dma_addr); scb->epthru = NULL; } @@ -2004,7 +2009,7 @@ make_local_pdev(adapter_t *adapter, struct pci_dev **pdev) memcpy(*pdev, adapter->dev, sizeof(struct pci_dev)); - if( pci_set_dma_mask(*pdev, DMA_BIT_MASK(32)) != 0 ) { + if (dma_set_mask(&(*pdev)->dev, DMA_BIT_MASK(32)) != 0) { kfree(*pdev); return -1; } @@ -2028,14 +2033,16 @@ free_local_pdev(struct pci_dev *pdev) static inline void * mega_allocate_inquiry(dma_addr_t *dma_handle, struct pci_dev *pdev) { - return pci_alloc_consistent(pdev, sizeof(mega_inquiry3), dma_handle); + return dma_alloc_coherent(&pdev->dev, sizeof(mega_inquiry3), + dma_handle, GFP_KERNEL); } static inline void mega_free_inquiry(void *inquiry, dma_addr_t dma_handle, struct pci_dev *pdev) { - pci_free_consistent(pdev, sizeof(mega_inquiry3), inquiry, dma_handle); + dma_free_coherent(&pdev->dev, sizeof(mega_inquiry3), inquiry, + dma_handle); } @@ -2349,7 +2356,8 @@ proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel) } - scsi_inq = pci_alloc_consistent(pdev, 256, &scsi_inq_dma_handle); + scsi_inq = dma_alloc_coherent(&pdev->dev, 256, &scsi_inq_dma_handle, + GFP_KERNEL); if( scsi_inq == NULL ) { seq_puts(m, "memory not available for scsi inq.\n"); goto free_inquiry; @@ -2422,7 +2430,7 @@ proc_show_pdrv(struct seq_file *m, adapter_t *adapter, int channel) } free_pci: - pci_free_consistent(pdev, 256, scsi_inq, scsi_inq_dma_handle); + dma_free_coherent(&pdev->dev, 256, scsi_inq, scsi_inq_dma_handle); free_inquiry: mega_free_inquiry(inquiry, dma_handle, pdev); free_pdev: @@ -2542,8 +2550,8 @@ proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end ) raid_inq.logdrv_info.num_ldrv; } - disk_array = pci_alloc_consistent(pdev, array_sz, - &disk_array_dma_handle); + disk_array = dma_alloc_coherent(&pdev->dev, array_sz, + &disk_array_dma_handle, GFP_KERNEL); if( disk_array == NULL ) { seq_puts(m, "memory not available.\n"); @@ -2662,8 +2670,8 @@ proc_show_rdrv(struct seq_file *m, adapter_t *adapter, int start, int end ) } free_pci: - pci_free_consistent(pdev, array_sz, disk_array, - disk_array_dma_handle); + dma_free_coherent(&pdev->dev, array_sz, disk_array, + disk_array_dma_handle); free_inquiry: mega_free_inquiry(inquiry, dma_handle, pdev); free_pdev: @@ -2881,9 +2889,9 @@ mega_init_scb(adapter_t *adapter) scb->idx = i; - scb->sgl64 = pci_alloc_consistent(adapter->dev, - sizeof(mega_sgl64) * adapter->sglen, - &scb->sgl_dma_addr); + scb->sgl64 = dma_alloc_coherent(&adapter->dev->dev, + sizeof(mega_sgl64) * adapter->sglen, + &scb->sgl_dma_addr, GFP_KERNEL); scb->sgl = (mega_sglist *)scb->sgl64; @@ -2893,9 +2901,9 @@ mega_init_scb(adapter_t *adapter) return -1; } - scb->pthru = pci_alloc_consistent(adapter->dev, - sizeof(mega_passthru), - &scb->pthru_dma_addr); + scb->pthru = dma_alloc_coherent(&adapter->dev->dev, + sizeof(mega_passthru), + &scb->pthru_dma_addr, GFP_KERNEL); if( !scb->pthru ) { dev_warn(&adapter->dev->dev, "RAID: Can't allocate passthru\n"); @@ -2903,9 +2911,9 @@ mega_init_scb(adapter_t *adapter) return -1; } - scb->epthru = pci_alloc_consistent(adapter->dev, - sizeof(mega_ext_passthru), - &scb->epthru_dma_addr); + scb->epthru = dma_alloc_coherent(&adapter->dev->dev, + sizeof(mega_ext_passthru), + &scb->epthru_dma_addr, GFP_KERNEL); if( !scb->epthru ) { dev_warn(&adapter->dev->dev, @@ -3145,9 +3153,9 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) if( uioc.uioc_rmbox[0] == MEGA_MBOXCMD_PASSTHRU ) { /* Passthru commands */ - pthru = pci_alloc_consistent(pdev, - sizeof(mega_passthru), - &pthru_dma_hndl); + pthru = dma_alloc_coherent(&pdev->dev, + sizeof(mega_passthru), + &pthru_dma_hndl, GFP_KERNEL); if( pthru == NULL ) { free_local_pdev(pdev); @@ -3165,9 +3173,9 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) if( copy_from_user(pthru, upthru, sizeof(mega_passthru)) ) { - pci_free_consistent(pdev, - sizeof(mega_passthru), pthru, - pthru_dma_hndl); + dma_free_coherent(&pdev->dev, + sizeof(mega_passthru), + pthru, pthru_dma_hndl); free_local_pdev(pdev); @@ -3178,15 +3186,16 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) * Is there a data transfer */ if( pthru->dataxferlen ) { - data = pci_alloc_consistent(pdev, - pthru->dataxferlen, - &data_dma_hndl); + data = dma_alloc_coherent(&pdev->dev, + pthru->dataxferlen, + &data_dma_hndl, + GFP_KERNEL); if( data == NULL ) { - pci_free_consistent(pdev, - sizeof(mega_passthru), - pthru, - pthru_dma_hndl); + dma_free_coherent(&pdev->dev, + sizeof(mega_passthru), + pthru, + pthru_dma_hndl); free_local_pdev(pdev); @@ -3251,13 +3260,13 @@ megadev_ioctl(struct file *filep, unsigned int cmd, unsigned long arg) freemem_and_return: if( pthru->dataxferlen ) { - pci_free_consistent(pdev, - pthru->dataxferlen, data, - data_dma_hndl); + dma_free_coherent(&pdev->dev, + pthru->dataxferlen, data, + data_dma_hndl); } - pci_free_consistent(pdev, sizeof(mega_passthru), - pthru, pthru_dma_hndl); + dma_free_coherent(&pdev->dev, sizeof(mega_passthru), + pthru, pthru_dma_hndl); free_local_pdev(pdev); @@ -3270,8 +3279,10 @@ freemem_and_return: * Is there a data transfer */ if( uioc.xferlen ) { - data = pci_alloc_consistent(pdev, - uioc.xferlen, &data_dma_hndl); + data = dma_alloc_coherent(&pdev->dev, + uioc.xferlen, + &data_dma_hndl, + GFP_KERNEL); if( data == NULL ) { free_local_pdev(pdev); @@ -3291,9 +3302,9 @@ freemem_and_return: if( copy_from_user(data, (char __user *)(unsigned long) uxferaddr, uioc.xferlen) ) { - pci_free_consistent(pdev, - uioc.xferlen, - data, data_dma_hndl); + dma_free_coherent(&pdev->dev, + uioc.xferlen, data, + data_dma_hndl); free_local_pdev(pdev); @@ -3314,9 +3325,9 @@ freemem_and_return: if( rval ) { if( uioc.xferlen ) { - pci_free_consistent(pdev, - uioc.xferlen, data, - data_dma_hndl); + dma_free_coherent(&pdev->dev, + uioc.xferlen, data, + data_dma_hndl); } free_local_pdev(pdev); @@ -3336,9 +3347,8 @@ freemem_and_return: } if( uioc.xferlen ) { - pci_free_consistent(pdev, - uioc.xferlen, data, - data_dma_hndl); + dma_free_coherent(&pdev->dev, uioc.xferlen, + data, data_dma_hndl); } free_local_pdev(pdev); @@ -4004,8 +4014,8 @@ mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, */ if( make_local_pdev(adapter, &pdev) != 0 ) return -1; - pthru = pci_alloc_consistent(pdev, sizeof(mega_passthru), - &pthru_dma_handle); + pthru = dma_alloc_coherent(&pdev->dev, sizeof(mega_passthru), + &pthru_dma_handle, GFP_KERNEL); if( pthru == NULL ) { free_local_pdev(pdev); @@ -4041,8 +4051,8 @@ mega_internal_dev_inquiry(adapter_t *adapter, u8 ch, u8 tgt, rval = mega_internal_command(adapter, &mc, pthru); - pci_free_consistent(pdev, sizeof(mega_passthru), pthru, - pthru_dma_handle); + dma_free_coherent(&pdev->dev, sizeof(mega_passthru), pthru, + pthru_dma_handle); free_local_pdev(pdev); @@ -4267,8 +4277,10 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) /* * Allocate buffer to issue internal commands. */ - adapter->mega_buffer = pci_alloc_consistent(adapter->dev, - MEGA_BUFFER_SIZE, &adapter->buf_dma_handle); + adapter->mega_buffer = dma_alloc_coherent(&adapter->dev->dev, + MEGA_BUFFER_SIZE, + &adapter->buf_dma_handle, + GFP_KERNEL); if (!adapter->mega_buffer) { dev_warn(&pdev->dev, "out of RAM\n"); goto out_host_put; @@ -4427,10 +4439,10 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) /* Set the Mode of addressing to 64 bit if we can */ if ((adapter->flag & BOARD_64BIT) && (sizeof(dma_addr_t) == 8)) { - pci_set_dma_mask(pdev, DMA_BIT_MASK(64)); + dma_set_mask(&pdev->dev, DMA_BIT_MASK(64)); adapter->has_64bit_addr = 1; } else { - pci_set_dma_mask(pdev, DMA_BIT_MASK(32)); + dma_set_mask(&pdev->dev, DMA_BIT_MASK(32)); adapter->has_64bit_addr = 0; } @@ -4469,15 +4481,15 @@ megaraid_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) return 0; out_free_mbox: - pci_free_consistent(adapter->dev, sizeof(mbox64_t), - adapter->una_mbox64, adapter->una_mbox64_dma); + dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t), + adapter->una_mbox64, adapter->una_mbox64_dma); out_free_irq: free_irq(adapter->host->irq, adapter); out_free_scb_list: kfree(adapter->scb_list); out_free_cmd_buffer: - pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, - adapter->mega_buffer, adapter->buf_dma_handle); + dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE, + adapter->mega_buffer, adapter->buf_dma_handle); out_host_put: scsi_host_put(host); out_iounmap: @@ -4551,11 +4563,11 @@ megaraid_remove_one(struct pci_dev *pdev) sprintf(buf, "hba%d", adapter->host->host_no); remove_proc_subtree(buf, mega_proc_dir_entry); - pci_free_consistent(adapter->dev, MEGA_BUFFER_SIZE, - adapter->mega_buffer, adapter->buf_dma_handle); + dma_free_coherent(&adapter->dev->dev, MEGA_BUFFER_SIZE, + adapter->mega_buffer, adapter->buf_dma_handle); kfree(adapter->scb_list); - pci_free_consistent(adapter->dev, sizeof(mbox64_t), - adapter->una_mbox64, adapter->una_mbox64_dma); + dma_free_coherent(&adapter->dev->dev, sizeof(mbox64_t), + adapter->una_mbox64, adapter->una_mbox64_dma); scsi_host_put(host); pci_disable_device(pdev); -- cgit v1.2.3 From 574918e69720fe62ab3eb42ec3750230c8d16b06 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sun, 2 Aug 2020 12:15:27 +0200 Subject: scsi: qla4xxx: Fix an error handling path in 'qla4xxx_get_host_stats()' Update the size used in 'dma_free_coherent()' in order to match the one used in the corresponding 'dma_alloc_coherent()'. Link: https://lore.kernel.org/r/20200802101527.676054-1-christophe.jaillet@wanadoo.fr Fixes: 4161cee52df8 ("[SCSI] qla4xxx: Add host statistics support") Signed-off-by: Christophe JAILLET Signed-off-by: Martin K. Petersen --- drivers/scsi/qla4xxx/ql4_os.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c index bab87e47b238..3c44f1d2802a 100644 --- a/drivers/scsi/qla4xxx/ql4_os.c +++ b/drivers/scsi/qla4xxx/ql4_os.c @@ -1254,7 +1254,7 @@ static int qla4xxx_get_host_stats(struct Scsi_Host *shost, char *buf, int len) le64_to_cpu(ql_iscsi_stats->iscsi_sequence_error); exit_host_stats: if (ql_iscsi_stats) - dma_free_coherent(&ha->pdev->dev, host_stats_size, + dma_free_coherent(&ha->pdev->dev, stats_size, ql_iscsi_stats, iscsi_stats_dma); ql4_printk(KERN_INFO, ha, "%s: Get host stats done\n", -- cgit v1.2.3 From 650b323c8e7c3ac4830a20895b1d444fd68dd787 Mon Sep 17 00:00:00 2001 From: Christophe JAILLET Date: Sun, 2 Aug 2020 13:07:21 +0200 Subject: scsi: qla2xxx: Fix the size used in a 'dma_free_coherent()' call Update the size used in 'dma_free_coherent()' in order to match the one used in the corresponding 'dma_alloc_coherent()'. [mkp: removed memset() hunk that has already been addressed] Link: https://lore.kernel.org/r/20200802110721.677707-1-christophe.jaillet@wanadoo.fr Fixes: 4161cee52df8 ("[SCSI] qla4xxx: Add host statistics support") Signed-off-by: Christophe JAILLET Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_mbx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 14656da20d07..a43d7229f9a1 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -4964,7 +4964,7 @@ qla25xx_set_els_cmds_supported(scsi_qla_host_t *vha) "Done %s.\n", __func__); } - dma_free_coherent(&ha->pdev->dev, DMA_POOL_SIZE, + dma_free_coherent(&ha->pdev->dev, ELS_CMD_MAP_SIZE, els_cmd_map, els_cmd_map_dma); return rval; -- cgit v1.2.3 From cb562b132bf8bf0b8fa23844694d5adbf99e8197 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 10 Aug 2020 09:07:45 +0100 Subject: scsi: snic: Fix spelling mistakes of "Queueing" There are two different spelling mistakes of "Queueing" in error and debug messages. Fix these. Link: https://lore.kernel.org/r/20200810080745.47314-1-colin.king@canonical.com Signed-off-by: Colin Ian King Signed-off-by: Martin K. Petersen --- drivers/scsi/snic/snic_scsi.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c index b3650c989ed4..a8a48b106062 100644 --- a/drivers/scsi/snic/snic_scsi.c +++ b/drivers/scsi/snic/snic_scsi.c @@ -1395,11 +1395,11 @@ snic_issue_tm_req(struct snic *snic, tmreq_err: if (ret) { SNIC_HOST_ERR(snic->shost, - "issu_tmreq: Queing ITMF(%d) Req, sc %p rqi %p req_id %d tag %x fails err = %d\n", + "issu_tmreq: Queueing ITMF(%d) Req, sc %p rqi %p req_id %d tag %x fails err = %d\n", tmf, sc, rqi, req_id, tag, ret); } else { SNIC_SCSI_DBG(snic->shost, - "issu_tmreq: Queuing ITMF(%d) Req, sc %p, rqi %p, req_id %d tag %x - Success.\n", + "issu_tmreq: Queueing ITMF(%d) Req, sc %p, rqi %p, req_id %d tag %x - Success.\n", tmf, sc, rqi, req_id, tag); } -- cgit v1.2.3 From 886a0b54f8e6c151855d522e4f0cb661bc20b0cf Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 10 Aug 2020 09:50:57 +0100 Subject: scsi: bnx2fc: Fix spelling mistake "couldnt" -> "couldn't" There are spelling mistakes in various printk messages. Fix these. Link: https://lore.kernel.org/r/20200810085057.49039-1-colin.king@canonical.com Signed-off-by: Colin Ian King Signed-off-by: Martin K. Petersen --- drivers/scsi/bnx2fc/bnx2fc_io.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_io.c b/drivers/scsi/bnx2fc/bnx2fc_io.c index 1aba5897ccb0..1a0dc18d6915 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_io.c +++ b/drivers/scsi/bnx2fc/bnx2fc_io.c @@ -864,7 +864,7 @@ int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req) abts_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_ABTS); if (!abts_io_req) { - printk(KERN_ERR PFX "abts: couldnt allocate cmd\n"); + printk(KERN_ERR PFX "abts: couldn't allocate cmd\n"); rc = FAILED; goto abts_err; } @@ -957,7 +957,7 @@ int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset, seq_clnp_req = bnx2fc_elstm_alloc(tgt, BNX2FC_SEQ_CLEANUP); if (!seq_clnp_req) { - printk(KERN_ERR PFX "cleanup: couldnt allocate cmd\n"); + printk(KERN_ERR PFX "cleanup: couldn't allocate cmd\n"); rc = -ENOMEM; kfree(cb_arg); goto cleanup_err; @@ -1015,7 +1015,7 @@ int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req) cleanup_io_req = bnx2fc_elstm_alloc(tgt, BNX2FC_CLEANUP); if (!cleanup_io_req) { - printk(KERN_ERR PFX "cleanup: couldnt allocate cmd\n"); + printk(KERN_ERR PFX "cleanup: couldn't allocate cmd\n"); rc = -1; goto cleanup_err; } -- cgit v1.2.3 From 29779a22af6f8c1b08ad245615ed985087b3f602 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 10 Aug 2020 10:08:43 +0100 Subject: scsi: csiostor: Fix spelling mistake "couldnt" -> "couldn't" There are spelling mistakes in two comments and a csio_err error message. Fix these. Link: https://lore.kernel.org/r/20200810090843.49553-1-colin.king@canonical.com Signed-off-by: Colin Ian King Signed-off-by: Martin K. Petersen --- drivers/scsi/csiostor/csio_scsi.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/csiostor/csio_scsi.c b/drivers/scsi/csiostor/csio_scsi.c index 00cf33573136..55e74da2f3cb 100644 --- a/drivers/scsi/csiostor/csio_scsi.c +++ b/drivers/scsi/csiostor/csio_scsi.c @@ -933,14 +933,14 @@ csio_scsis_aborting(struct csio_ioreq *req, enum csio_scsi_ev evt) * abort for that I/O by the FW crossed each other. * The FW returned FW_EINVAL. The original I/O would have * returned with FW_SUCCESS or any other SCSI error. - * 3. The FW couldnt sent the abort out on the wire, as there + * 3. The FW couldn't sent the abort out on the wire, as there * was an I-T nexus loss (link down, remote device logged * out etc). FW sent back an appropriate IT nexus loss status * for the abort. * 4. FW sent an abort, but abort timed out (remote device * didnt respond). FW replied back with * FW_SCSI_ABORT_TIMEDOUT. - * 5. FW couldnt genuinely abort the request for some reason, + * 5. FW couldn't genuinely abort the request for some reason, * and sent us an error. * * The first 3 scenarios are treated as succesful abort @@ -1859,7 +1859,7 @@ csio_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *cmnd) spin_unlock_irqrestore(&hw->lock, flags); if (retval != 0) { - csio_err(hw, "ioreq: %p couldnt be started, status:%d\n", + csio_err(hw, "ioreq: %p couldn't be started, status:%d\n", ioreq, retval); CSIO_INC_STATS(scsim, n_busy_error); goto err_put_req; -- cgit v1.2.3 From a9b83986fd6e4834f99f883bbb5b7cb5186f5f5d Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 10 Aug 2020 11:12:38 +0100 Subject: scsi: lpfc: Fix spelling mistake "Cant" -> "Can't" There is a spelling mistake in an error message. Fix it. Link: https://lore.kernel.org/r/20200810101238.61787-1-colin.king@canonical.com Signed-off-by: Colin Ian King Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_debugfs.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index ae0a8252128c..d6c07eeedd69 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -5944,7 +5944,7 @@ lpfc_debugfs_initialize(struct lpfc_vport *vport) phba, &lpfc_debugfs_op_lockstat); if (!phba->debug_lockstat) { lpfc_printf_vlog(vport, KERN_ERR, LOG_INIT, - "4610 Cant create debugfs lockstat\n"); + "4610 Can't create debugfs lockstat\n"); goto debug_failed; } #endif -- cgit v1.2.3 From 715f43c66c45381ba885279ed393890a117e1b45 Mon Sep 17 00:00:00 2001 From: Tong Zhang Date: Sun, 16 Aug 2020 03:02:42 -0400 Subject: scsi: aic7xxx: Fix error code handling ahc_linux_queue_recovery_cmd returns SUCCESS(0x2002) or FAIL(0x2003), but the caller is checking error case using != 0. Link: https://lore.kernel.org/r/20200816070242.978839-1-ztong0001@gmail.com Signed-off-by: Tong Zhang Signed-off-by: Martin K. Petersen --- drivers/scsi/aic7xxx/aic7xxx_osm.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic7xxx_osm.c b/drivers/scsi/aic7xxx/aic7xxx_osm.c index e7ccb8b80fc1..7bba961d1ae0 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_osm.c +++ b/drivers/scsi/aic7xxx/aic7xxx_osm.c @@ -730,7 +730,7 @@ ahc_linux_abort(struct scsi_cmnd *cmd) int error; error = ahc_linux_queue_recovery_cmd(cmd, SCB_ABORT); - if (error != 0) + if (error != SUCCESS) printk("aic7xxx_abort returns 0x%x\n", error); return (error); } @@ -744,7 +744,7 @@ ahc_linux_dev_reset(struct scsi_cmnd *cmd) int error; error = ahc_linux_queue_recovery_cmd(cmd, SCB_DEVICE_RESET); - if (error != 0) + if (error != SUCCESS) printk("aic7xxx_dev_reset returns 0x%x\n", error); return (error); } -- cgit v1.2.3 From 8905cbdae986515c5a4dcd71889672235478f189 Mon Sep 17 00:00:00 2001 From: Tianjia Zhang Date: Sun, 2 Aug 2020 19:15:27 +0800 Subject: scsi: qla2xxx: Remove redundant variable initialization The initialization value of `rc` is wrong. It is unnecessary to initialize `rc` variables, so remove its initialization operation. Link: https://lore.kernel.org/r/20200802111527.4928-1-tianjia.zhang@linux.alibaba.com Fixes: 84905dfe78d2 ("scsi: qla2xxx: Fix TMF and Multi-Queue config") Cc: Quinn Tran Signed-off-by: Tianjia Zhang Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index fbb80a043b4f..c2c0e6049da4 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -2025,7 +2025,7 @@ static void qlt_do_tmr_work(struct work_struct *work) struct qla_tgt_mgmt_cmd *mcmd = container_of(work, struct qla_tgt_mgmt_cmd, work); struct qla_hw_data *ha = mcmd->vha->hw; - int rc = EIO; + int rc; uint32_t tag; unsigned long flags; -- cgit v1.2.3 From bbf2d06a9d767718bfe6028d6288c03edb98554a Mon Sep 17 00:00:00 2001 From: Tianjia Zhang Date: Sun, 2 Aug 2020 19:15:28 +0800 Subject: scsi: qla2xxx: Fix wrong return value in qlt_chk_unresolv_exchg() In the case of a failed retry, a positive value EIO is returned here. I think this is a typo error. It is necessary to return an error value. [mkp: caller checks != 0 but the rest of the file uses -Exxx so fix this up to be consistent] Link: https://lore.kernel.org/r/20200802111528.4974-1-tianjia.zhang@linux.alibaba.com Fixes: 0691094ff3f2 ("scsi: qla2xxx: Add logic to detect ABTS hang and response completion") Cc: Quinn Tran Signed-off-by: Tianjia Zhang Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index c2c0e6049da4..f2bb841c2059 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -5668,7 +5668,7 @@ static int qlt_chk_unresolv_exchg(struct scsi_qla_host *vha, /* found existing exchange */ qpair->retry_term_cnt++; if (qpair->retry_term_cnt >= 5) { - rc = EIO; + rc = -EIO; qpair->retry_term_cnt = 0; ql_log(ql_log_warn, vha, 0xffff, "Unable to send ABTS Respond. Dumping firmware.\n"); -- cgit v1.2.3 From ca4fb89a3d714a770e9c73c649da830f3f4a5326 Mon Sep 17 00:00:00 2001 From: Tianjia Zhang Date: Sun, 2 Aug 2020 19:15:30 +0800 Subject: scsi: qla2xxx: Fix wrong return value in qla_nvme_register_hba() On an error exit path, a negative error code should be returned instead of a positive return value. Link: https://lore.kernel.org/r/20200802111530.5020-1-tianjia.zhang@linux.alibaba.com Fixes: 8777e4314d39 ("scsi: qla2xxx: Migrate NVME N2N handling into state machine") Cc: Quinn Tran Signed-off-by: Tianjia Zhang Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_nvme.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index fa695a4007f8..a8da6be52b18 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -678,7 +678,7 @@ int qla_nvme_register_hba(struct scsi_qla_host *vha) struct nvme_fc_port_template *tmpl; struct qla_hw_data *ha; struct nvme_fc_port_info pinfo; - int ret = EINVAL; + int ret = -EINVAL; if (!IS_ENABLED(CONFIG_NVME_FC)) return ret; -- cgit v1.2.3 From 44f4daf8678ae5f08c93bbe70792f90cd88e4649 Mon Sep 17 00:00:00 2001 From: Tianjia Zhang Date: Sun, 2 Aug 2020 19:15:31 +0800 Subject: scsi: csiostor: Fix wrong return value in csio_hw_prep_fw() On an error exit path, a negative error code should be returned instead of a positive return value. Link: https://lore.kernel.org/r/20200802111531.5065-1-tianjia.zhang@linux.alibaba.com Fixes: f40e74ffa3de ("csiostor:firmware upgrade fix") Cc: Praveen Madhavan Signed-off-by: Tianjia Zhang Signed-off-by: Martin K. Petersen --- drivers/scsi/csiostor/csio_hw.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/csiostor/csio_hw.c b/drivers/scsi/csiostor/csio_hw.c index 98d4d39aaa57..b497fe949d4a 100644 --- a/drivers/scsi/csiostor/csio_hw.c +++ b/drivers/scsi/csiostor/csio_hw.c @@ -2384,7 +2384,7 @@ static int csio_hw_prep_fw(struct csio_hw *hw, struct fw_info *fw_info, FW_HDR_FW_VER_MICRO_G(c), FW_HDR_FW_VER_BUILD_G(c), FW_HDR_FW_VER_MAJOR_G(k), FW_HDR_FW_VER_MINOR_G(k), FW_HDR_FW_VER_MICRO_G(k), FW_HDR_FW_VER_BUILD_G(k)); - ret = EINVAL; + ret = -EINVAL; goto bye; } -- cgit v1.2.3 From 32417d7844ab0bc154c39128d9ac026f4f8a7907 Mon Sep 17 00:00:00 2001 From: Alex Dewar Date: Thu, 20 Aug 2020 19:14:11 +0100 Subject: scsi: esas2r: Remove unnecessary casts In a number of places in esas2r_ioctl.c, the void* returned from pci_alloc_consistent() is cast unnecessarily. Remove casts. Issue identified with Coccinelle. Link: https://lore.kernel.org/r/20200820181411.866057-1-alex.dewar90@gmail.com Signed-off-by: Alex Dewar Signed-off-by: Martin K. Petersen --- drivers/scsi/esas2r/esas2r_ioctl.c | 28 +++++++++++++--------------- 1 file changed, 13 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/esas2r/esas2r_ioctl.c b/drivers/scsi/esas2r/esas2r_ioctl.c index cc620f10eabc..08f4e43c7d9e 100644 --- a/drivers/scsi/esas2r/esas2r_ioctl.c +++ b/drivers/scsi/esas2r/esas2r_ioctl.c @@ -1548,11 +1548,10 @@ static int allocate_fw_buffers(struct esas2r_adapter *a, u32 length) a->firmware.orig_len = length; - a->firmware.data = (u8 *)dma_alloc_coherent(&a->pcid->dev, - (size_t)length, - (dma_addr_t *)&a->firmware. - phys, - GFP_KERNEL); + a->firmware.data = dma_alloc_coherent(&a->pcid->dev, + (size_t)length, + (dma_addr_t *)&a->firmware.phys, + GFP_KERNEL); if (!a->firmware.data) { esas2r_debug("buffer alloc failed!"); @@ -1895,11 +1894,11 @@ int esas2r_write_vda(struct esas2r_adapter *a, const char *buf, long off, if (!a->vda_buffer) { dma_addr_t dma_addr; - a->vda_buffer = (u8 *)dma_alloc_coherent(&a->pcid->dev, - (size_t) - VDA_MAX_BUFFER_SIZE, - &dma_addr, - GFP_KERNEL); + a->vda_buffer = dma_alloc_coherent(&a->pcid->dev, + (size_t) + VDA_MAX_BUFFER_SIZE, + &dma_addr, + GFP_KERNEL); a->ppvda_buffer = dma_addr; } @@ -2064,11 +2063,10 @@ int esas2r_write_fs(struct esas2r_adapter *a, const char *buf, long off, re_allocate_buffer: a->fs_api_buffer_size = length; - a->fs_api_buffer = (u8 *)dma_alloc_coherent( - &a->pcid->dev, - (size_t)a->fs_api_buffer_size, - (dma_addr_t *)&a->ppfs_api_buffer, - GFP_KERNEL); + a->fs_api_buffer = dma_alloc_coherent(&a->pcid->dev, + (size_t)a->fs_api_buffer_size, + (dma_addr_t *)&a->ppfs_api_buffer, + GFP_KERNEL); } } -- cgit v1.2.3 From 5df6f2def50c70700555c77fbbaec03d78617064 Mon Sep 17 00:00:00 2001 From: Kiwoong Kim Date: Tue, 25 Aug 2020 10:43:15 +0900 Subject: scsi: ufs: Introduce skipping manual flush for Write Booster We have two knobs to control flush for write booster, fWriteBoosterBufferFlushDuringHibernate and fWriteBoosterBufferFlushEn. Some vendors use only fWriteBoosterBufferFlushDuringHibernate because this can reportedly cover most scenarios. Also, there have been some reports that flush by fWriteBoosterBufferFlushEn could lead to increased power consumption thanks to unexpected internal operations. Consequently, we need a way to enable or disable fWriteBoosterEn operations. Add quirk to bypass manual flush. Link: https://lore.kernel.org/r/ffdb0eda30515809f0ad9ee936b26917ee9b4593.1598319701.git.kwmad.kim@samsung.com Reviewed-by: Avri Altman Signed-off-by: Kiwoong Kim Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 3 +++ drivers/scsi/ufs/ufshcd.h | 5 +++++ 2 files changed, 8 insertions(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 06e2439d523c..3d91def07878 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -5306,6 +5306,9 @@ static int ufshcd_wb_toggle_flush_during_h8(struct ufs_hba *hba, bool set) static inline void ufshcd_wb_toggle_flush(struct ufs_hba *hba, bool enable) { + if (hba->quirks & UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL) + return; + if (enable) ufshcd_wb_buf_flush_enable(hba); else diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index 618b253e5ec8..a88dfac7c9e9 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -530,6 +530,11 @@ enum ufshcd_quirks { * OCS FATAL ERROR with device error through sense data */ UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR = 1 << 10, + + /* + * This quirk needs to disable manual flush for write booster + */ + UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL = 1 << 11, }; enum ufshcd_caps { -- cgit v1.2.3 From 7973b8ac669e64a2c4c40b55e0eac8f96d20f1fd Mon Sep 17 00:00:00 2001 From: Kiwoong Kim Date: Tue, 25 Aug 2020 10:43:16 +0900 Subject: scsi: ufs: exynos: Enable UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL For Exynos, flush during hibern8 is sufficient. Manual flush will cause an increase in power usage. Link: https://lore.kernel.org/r/ef94af8f273316d50d7f50a0cac9c7be9b9316a1.1598319701.git.kwmad.kim@samsung.com Reviewed-by: Avri Altman Signed-off-by: Kiwoong Kim Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-exynos.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c index 8f1b6f61a776..ed4354472d08 100644 --- a/drivers/scsi/ufs/ufs-exynos.c +++ b/drivers/scsi/ufs/ufs-exynos.c @@ -1252,7 +1252,8 @@ struct exynos_ufs_drv_data exynos_ufs_drvs = { UFSHCI_QUIRK_BROKEN_REQ_LIST_CLR | UFSHCI_QUIRK_BROKEN_HCE | UFSHCI_QUIRK_SKIP_RESET_INTR_AGGR | - UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR, + UFSHCD_QUIRK_BROKEN_OCS_FATAL_ERROR | + UFSHCI_QUIRK_SKIP_MANUAL_WB_FLUSH_CTRL, .opts = EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL | EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL | EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX | -- cgit v1.2.3 From ad0c7775e745d282af661483bc53311034d456d0 Mon Sep 17 00:00:00 2001 From: Douglas Gilbert Date: Fri, 21 Aug 2020 00:22:49 -0400 Subject: scsi: scsi_debug: Implement lun_format Implement 'flat space LUN addressing', which allows us to raise the max_lun limitation to 16384. The maximum number of LUNs prior to this patch was 256. Link: https://lore.kernel.org/r/20200821042249.5097-1-dgilbert@interlog.com Suggested-by: Hannes Reinecke Signed-off-by: Douglas Gilbert Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_debug.c | 71 ++++++++++++++++++++++++++++++++++++++++++----- 1 file changed, 64 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 064ed680c053..c5829493dd35 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -209,10 +209,6 @@ static const char *sdebug_version_date = "20200710"; #define OPT_MEDIUM_ERR_ADDR 0x1234 /* that's sector 4660 in decimal */ #define OPT_MEDIUM_ERR_NUM 10 /* number of consecutive medium errs */ -/* If REPORT LUNS has luns >= 256 it can choose "flat space" (value 1) - * or "peripheral device" addressing (value 0) */ -#define SAM2_LUN_ADDRESS_METHOD 0 - /* SDEBUG_CANQUEUE is the maximum number of commands that can be queued * (for response) per submit queue at one time. Can be reduced by max_queue * option. Command responses are not queued when jdelay=0 and ndelay=0. The @@ -791,6 +787,13 @@ static bool sdebug_wp; static enum blk_zoned_model sdeb_zbc_model = BLK_ZONED_NONE; static char *sdeb_zbc_model_s; +enum sam_lun_addr_method {SAM_LUN_AM_PERIPHERAL = 0x0, + SAM_LUN_AM_FLAT = 0x1, + SAM_LUN_AM_LOGICAL_UNIT = 0x2, + SAM_LUN_AM_EXTENDED = 0x3}; +static enum sam_lun_addr_method sdebug_lun_am = SAM_LUN_AM_PERIPHERAL; +static int sdebug_lun_am_i = (int)SAM_LUN_AM_PERIPHERAL; + static unsigned int sdebug_store_sectors; static sector_t sdebug_capacity; /* in sectors */ @@ -4179,6 +4182,8 @@ static int resp_report_luns(struct scsi_cmnd *scp, if ((k * RL_BUCKET_ELEMS) + j > lun_cnt) break; int_to_scsilun(lun++, lun_p); + if (lun > 1 && sdebug_lun_am == SAM_LUN_AM_FLAT) + lun_p->scsi_lun[0] |= 0x40; } if (j < RL_BUCKET_ELEMS) break; @@ -4946,6 +4951,7 @@ static struct sdebug_dev_info *find_build_dev_info(struct scsi_device *sdev) pr_err("Host info NULL\n"); return NULL; } + list_for_each_entry(devip, &sdbg_host->dev_info_list, dev_list) { if ((devip->used) && (devip->channel == sdev->channel) && (devip->target == sdev->id) && @@ -5584,6 +5590,7 @@ module_param_named(lbpu, sdebug_lbpu, int, S_IRUGO); module_param_named(lbpws, sdebug_lbpws, int, S_IRUGO); module_param_named(lbpws10, sdebug_lbpws10, int, S_IRUGO); module_param_named(lowest_aligned, sdebug_lowest_aligned, int, S_IRUGO); +module_param_named(lun_format, sdebug_lun_am_i, int, S_IRUGO | S_IWUSR); module_param_named(max_luns, sdebug_max_luns, int, S_IRUGO | S_IWUSR); module_param_named(max_queue, sdebug_max_queue, int, S_IRUGO | S_IWUSR); module_param_named(medium_error_count, sdebug_medium_error_count, int, @@ -5657,6 +5664,7 @@ MODULE_PARM_DESC(lbpws, "enable LBP, support WRITE SAME(16) with UNMAP bit (def= MODULE_PARM_DESC(lbpws10, "enable LBP, support WRITE SAME(10) with UNMAP bit (def=0)"); MODULE_PARM_DESC(lowest_aligned, "lowest aligned lba (def=0)"); MODULE_PARM_DESC(max_luns, "number of LUNs per target to simulate(def=1)"); +MODULE_PARM_DESC(lun_format, "LUN format: 0->peripheral (def); 1 --> flat address method"); MODULE_PARM_DESC(max_queue, "max number of queued commands (1 to max(def))"); MODULE_PARM_DESC(medium_error_count, "count of sectors to return follow on MEDIUM error"); MODULE_PARM_DESC(medium_error_start, "starting sector number to return MEDIUM error"); @@ -6104,6 +6112,43 @@ every_nth_done: } static DRIVER_ATTR_RW(every_nth); +static ssize_t lun_format_show(struct device_driver *ddp, char *buf) +{ + return scnprintf(buf, PAGE_SIZE, "%d\n", (int)sdebug_lun_am); +} +static ssize_t lun_format_store(struct device_driver *ddp, const char *buf, + size_t count) +{ + int n; + bool changed; + + if (kstrtoint(buf, 0, &n)) + return -EINVAL; + if (n >= 0) { + if (n > (int)SAM_LUN_AM_FLAT) { + pr_warn("only LUN address methods 0 and 1 are supported\n"); + return -EINVAL; + } + changed = ((int)sdebug_lun_am != n); + sdebug_lun_am = n; + if (changed && sdebug_scsi_level >= 5) { /* >= SPC-3 */ + struct sdebug_host_info *sdhp; + struct sdebug_dev_info *dp; + + spin_lock(&sdebug_host_list_lock); + list_for_each_entry(sdhp, &sdebug_host_list, host_list) { + list_for_each_entry(dp, &sdhp->dev_info_list, dev_list) { + set_bit(SDEBUG_UA_LUNS_CHANGED, dp->uas_bm); + } + } + spin_unlock(&sdebug_host_list_lock); + } + return count; + } + return -EINVAL; +} +static DRIVER_ATTR_RW(lun_format); + static ssize_t max_luns_show(struct device_driver *ddp, char *buf) { return scnprintf(buf, PAGE_SIZE, "%d\n", sdebug_max_luns); @@ -6542,6 +6587,7 @@ static struct attribute *sdebug_drv_attrs[] = { &driver_attr_dev_size_mb.attr, &driver_attr_num_parts.attr, &driver_attr_every_nth.attr, + &driver_attr_lun_format.attr, &driver_attr_max_luns.attr, &driver_attr_max_queue.attr, &driver_attr_no_uld.attr, @@ -6634,9 +6680,19 @@ static int __init scsi_debug_init(void) pr_err("invalid physblk_exp %u\n", sdebug_physblk_exp); return -EINVAL; } + + sdebug_lun_am = sdebug_lun_am_i; + if (sdebug_lun_am > SAM_LUN_AM_FLAT) { + pr_warn("Invalid LUN format %u, using default\n", (int)sdebug_lun_am); + sdebug_lun_am = SAM_LUN_AM_PERIPHERAL; + } + if (sdebug_max_luns > 256) { - pr_warn("max_luns can be no more than 256, use default\n"); - sdebug_max_luns = DEF_MAX_LUNS; + if (sdebug_max_luns > 16384) { + pr_warn("max_luns can be no more than 16384, use default\n"); + sdebug_max_luns = DEF_MAX_LUNS; + } + sdebug_lun_am = SAM_LUN_AM_FLAT; } if (sdebug_lowest_aligned > 0x3fff) { @@ -7158,6 +7214,7 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost, int (*pfp)(struct scsi_cmnd *, struct sdebug_dev_info *) = NULL; int k, na; int errsts = 0; + u64 lun_index = sdp->lun & 0x3FFF; u32 flags; u16 sa; u8 opcode = cmd[0]; @@ -7191,7 +7248,7 @@ static int scsi_debug_queuecommand(struct Scsi_Host *shost, if (unlikely(inject_now && (sdebug_opts & SDEBUG_OPT_HOST_BUSY))) return SCSI_MLQUEUE_HOST_BUSY; has_wlun_rl = (sdp->lun == SCSI_W_LUN_REPORT_LUNS); - if (unlikely((sdp->lun >= sdebug_max_luns) && !has_wlun_rl)) + if (unlikely(lun_index >= sdebug_max_luns && !has_wlun_rl)) goto err_out; sdeb_i = opcode_ind_arr[opcode]; /* fully mapped */ -- cgit v1.2.3 From cfd3d2225aa5d72e2ea848a0bb05d11b46a88d49 Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Tue, 25 Aug 2020 14:20:03 +0300 Subject: scsi: aacraid: Remove erroneous fallthrough annotation This fallthrough annotation is unreachable so we can delete it. Link: https://lore.kernel.org/r/20200825112003.GD285523@mwanda Fixes: c4e2fbca374b ("scsi: aacraid: Reworked scsi command submission path") Signed-off-by: Dan Carpenter Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aachba.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 959b3ae8a99e..8808722a5ff1 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -3253,7 +3253,6 @@ int aac_scsi_cmd(struct scsi_cmnd * scsicmd) case START_STOP: return aac_start_stop(scsicmd); - /* FALLTHRU */ default: /* * Unhandled commands -- cgit v1.2.3 From cc770ce34aeeff21991f162f0db1a758ea672727 Mon Sep 17 00:00:00 2001 From: Eric Biggers Date: Tue, 25 Aug 2020 19:10:40 -0700 Subject: scsi: ufs: Make ufshcd_print_trs() consider UFSHCD_QUIRK_PRDT_BYTE_GRAN Fix ufshcd_print_trs() to consider UFSHCD_QUIRK_PRDT_BYTE_GRAN when using utp_transfer_req_desc::prd_table_length, so that it doesn't treat the number of bytes as the number of entries. Originally from Kiwoong Kim (https://lkml.kernel.org/r/20200218233115.8185-1-kwmad.kim@samsung.com). Link: https://lore.kernel.org/r/20200826021040.152148-1-ebiggers@kernel.org Fixes: 26f968d7de82 ("scsi: ufs: Introduce UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk") Cc: Alim Akhtar Cc: Kiwoong Kim Signed-off-by: Eric Biggers Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 3 +++ 1 file changed, 3 insertions(+) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 3d91def07878..0beb35d8d754 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -473,6 +473,9 @@ void ufshcd_print_trs(struct ufs_hba *hba, unsigned long bitmap, bool pr_prdt) prdt_length = le16_to_cpu( lrbp->utr_descriptor_ptr->prd_table_length); + if (hba->quirks & UFSHCD_QUIRK_PRDT_BYTE_GRAN) + prdt_length /= sizeof(struct ufshcd_sg_entry); + dev_err(hba->dev, "UPIU[%d] - PRDT - %d entries phys@0x%llx\n", tag, prdt_length, -- cgit v1.2.3 From 9535f2152acec91df0d293e4b0b8c20b618fc44e Mon Sep 17 00:00:00 2001 From: Xu Wang Date: Thu, 27 Aug 2020 09:26:06 +0000 Subject: scsi: qedi: Remove redundant NULL check kfree_skb() handles a NULL skb argument so the additional check is unnecessary. Remove it. Link: https://lore.kernel.org/r/20200827092606.32148-1-vulab@iscas.ac.cn Signed-off-by: Xu Wang Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 6f038ae5efca..e42437ec23a8 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -789,8 +789,7 @@ static void qedi_ll2_free_skbs(struct qedi_ctx *qedi) spin_lock_bh(&qedi->ll2_lock); list_for_each_entry_safe(work, work_tmp, &qedi->ll2_skb_list, list) { list_del(&work->list); - if (work->skb) - kfree_skb(work->skb); + kfree_skb(work->skb); kfree(work); } spin_unlock_bh(&qedi->ll2_lock); -- cgit v1.2.3 From e34ce005a1773ebea09f702e0b4a37283afcf934 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Thu, 27 Aug 2020 20:58:12 +0800 Subject: scsi: dpt_i2o: Remove set but not used 'pHba' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/dpt_i2o.c: In function ‘adpt_slave_configure’: drivers/scsi/dpt_i2o.c:411:12: warning: variable ‘pHba’ set but not used [-Wunused-but-set-variable] 411 | adpt_hba* pHba; | ^~~~ Link: https://lore.kernel.org/r/20200827125812.427753-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/dpt_i2o.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/scsi/dpt_i2o.c b/drivers/scsi/dpt_i2o.c index f654ad8a3d69..4251212acbbe 100644 --- a/drivers/scsi/dpt_i2o.c +++ b/drivers/scsi/dpt_i2o.c @@ -408,9 +408,6 @@ static void adpt_inquiry(adpt_hba* pHba) static int adpt_slave_configure(struct scsi_device * device) { struct Scsi_Host *host = device->host; - adpt_hba* pHba; - - pHba = (adpt_hba *) host->hostdata[0]; if (host->can_queue && device->tagged_supported) { scsi_change_queue_depth(device, -- cgit v1.2.3 From 7149e0cb31c5d5db35e71d2c4ce57b6053b5855e Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Thu, 27 Aug 2020 20:58:51 +0800 Subject: scsi: isci: Remove set but not used 'index' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/isci/host.c: In function ‘sci_controller_complete_io’: drivers/scsi/isci/host.c:2674:6: warning: variable ‘index’ set but not used [-Wunused-but-set-variable] 2674 | u16 index; | ^~~~~ Link: https://lore.kernel.org/r/20200827125851.428071-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/isci/host.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/isci/host.c b/drivers/scsi/isci/host.c index 7b5deae68d33..7ebfa3c8cdc7 100644 --- a/drivers/scsi/isci/host.c +++ b/drivers/scsi/isci/host.c @@ -2671,7 +2671,6 @@ enum sci_status sci_controller_complete_io(struct isci_host *ihost, struct isci_request *ireq) { enum sci_status status; - u16 index; switch (ihost->sm.current_state_id) { case SCIC_STOPPING: @@ -2682,7 +2681,6 @@ enum sci_status sci_controller_complete_io(struct isci_host *ihost, if (status != SCI_SUCCESS) return status; - index = ISCI_TAG_TCI(ireq->io_tag); clear_bit(IREQ_ACTIVE, &ireq->flags); return SCI_SUCCESS; default: -- cgit v1.2.3 From bef7afbf3bb64443530170c0712060e11bea27e7 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Thu, 27 Aug 2020 20:59:25 +0800 Subject: scsi: mptscsih: Remove set but not used 'timeleft' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/message/fusion/mptscsih.c: In function ‘mptscsih_IssueTaskMgmt’: drivers/message/fusion/mptscsih.c:1519:17: warning: variable ‘timeleft’ set but not used [-Wunused-but-set-variable] 1519 | unsigned long timeleft; | ^~~~~~~~ Link: https://lore.kernel.org/r/20200827125925.428357-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/message/fusion/mptscsih.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/message/fusion/mptscsih.c b/drivers/message/fusion/mptscsih.c index 1491561d2e5c..f10831bd57e2 100644 --- a/drivers/message/fusion/mptscsih.c +++ b/drivers/message/fusion/mptscsih.c @@ -1516,7 +1516,6 @@ mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun, int ii; int retval; MPT_ADAPTER *ioc = hd->ioc; - unsigned long timeleft; u8 issue_hard_reset; u32 ioc_raw_state; unsigned long time_count; @@ -1614,7 +1613,7 @@ mptscsih_IssueTaskMgmt(MPT_SCSI_HOST *hd, u8 type, u8 channel, u8 id, u64 lun, } } - timeleft = wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, + wait_for_completion_timeout(&ioc->taskmgmt_cmds.done, timeout*HZ); if (!(ioc->taskmgmt_cmds.status & MPT_MGMT_STATUS_COMMAND_GOOD)) { retval = FAILED; -- cgit v1.2.3 From 9e21760e4ce442b5f17e98cb9e6182d1d147a9d2 Mon Sep 17 00:00:00 2001 From: Don Brace Date: Fri, 28 Aug 2020 14:07:42 -0500 Subject: scsi: hpsa: Update copyright Add entry for Microchip. Link: https://lore.kernel.org/r/159864166227.12131.3427629298809272795.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/hpsa.c | 1 + drivers/scsi/hpsa.h | 1 + drivers/scsi/hpsa_cmd.h | 1 + 3 files changed, 3 insertions(+) diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c index ff87dac85846..b529300df991 100644 --- a/drivers/scsi/hpsa.c +++ b/drivers/scsi/hpsa.c @@ -1,5 +1,6 @@ /* * Disk Array driver for HP Smart Array SAS controllers + * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries * Copyright 2016 Microsemi Corporation * Copyright 2014-2015 PMC-Sierra, Inc. * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. diff --git a/drivers/scsi/hpsa.h b/drivers/scsi/hpsa.h index 6b87d9815b35..99b0750850b2 100644 --- a/drivers/scsi/hpsa.h +++ b/drivers/scsi/hpsa.h @@ -1,5 +1,6 @@ /* * Disk Array driver for HP Smart Array SAS controllers + * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries * Copyright 2016 Microsemi Corporation * Copyright 2014-2015 PMC-Sierra, Inc. * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. diff --git a/drivers/scsi/hpsa_cmd.h b/drivers/scsi/hpsa_cmd.h index 7825cbfea4dc..46df2e3ff89b 100644 --- a/drivers/scsi/hpsa_cmd.h +++ b/drivers/scsi/hpsa_cmd.h @@ -1,5 +1,6 @@ /* * Disk Array driver for HP Smart Array SAS controllers + * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries * Copyright 2016 Microsemi Corporation * Copyright 2014-2015 PMC-Sierra, Inc. * Copyright 2000,2009-2015 Hewlett-Packard Development Company, L.P. -- cgit v1.2.3 From 0051a150c32f91614419bb47f5c1fca6d5960e67 Mon Sep 17 00:00:00 2001 From: Don Brace Date: Fri, 28 Aug 2020 15:05:08 -0500 Subject: scsi: MAINTAINERS: Update smartpqi and hpsa Change M entry e-mail to microchip. Change L entry e-mail for storagedev to microchip. Link: https://lore.kernel.org/r/159864510818.12656.822985017436862534.stgit@brunhilda Reviewed-by: Scott Benesh Reviewed-by: Scott Teel Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- MAINTAINERS | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index deaafb617361..90ef87b64f31 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -7716,8 +7716,8 @@ F: Documentation/watchdog/hpwdt.rst F: drivers/watchdog/hpwdt.c HEWLETT-PACKARD SMART ARRAY RAID DRIVER (hpsa) -M: Don Brace -L: esc.storagedev@microsemi.com +M: Don Brace +L: storagedev@microchip.com L: linux-scsi@vger.kernel.org S: Supported F: Documentation/scsi/hpsa.rst @@ -11521,8 +11521,8 @@ F: arch/mips/configs/generic/board-ocelot.config F: arch/mips/generic/board-ocelot.c MICROSEMI SMART ARRAY SMARTPQI DRIVER (smartpqi) -M: Don Brace -L: esc.storagedev@microsemi.com +M: Don Brace +L: storagedev@microchip.com L: linux-scsi@vger.kernel.org S: Supported F: Documentation/scsi/smartpqi.rst -- cgit v1.2.3 From 5f59128c83fc0efaf8b6c766d87edd831f732840 Mon Sep 17 00:00:00 2001 From: Don Brace Date: Fri, 28 Aug 2020 16:09:15 -0500 Subject: scsi: smartpqi: Update documentation Change Microsemi references to Microchip. Link: https://lore.kernel.org/r/159864895592.13630.18113151805817361168.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- Documentation/scsi/smartpqi.rst | 14 +++++++------- 1 file changed, 7 insertions(+), 7 deletions(-) diff --git a/Documentation/scsi/smartpqi.rst b/Documentation/scsi/smartpqi.rst index a7de27352c6f..e574a1ccf4ac 100644 --- a/Documentation/scsi/smartpqi.rst +++ b/Documentation/scsi/smartpqi.rst @@ -1,12 +1,12 @@ .. SPDX-License-Identifier: GPL-2.0 -===================================== -SMARTPQI - Microsemi Smart PQI Driver -===================================== +============================================== +SMARTPQI - Microchip Smart Storage SCSI driver +============================================== -This file describes the smartpqi SCSI driver for Microsemi -(http://www.microsemi.com) PQI controllers. The smartpqi driver -is the next generation SCSI driver for Microsemi Corp. The smartpqi +This file describes the smartpqi SCSI driver for Microchip +(http://www.microchip.com) PQI controllers. The smartpqi driver +is the next generation SCSI driver for Microchip Corp. The smartpqi driver is the first SCSI driver to implement the PQI queuing model. The smartpqi driver will replace the aacraid driver for Adaptec Series 9 @@ -14,7 +14,7 @@ controllers. Customers running an older kernel (Pre-4.9) using an Adaptec Series 9 controller will have to configure the smartpqi driver or their volumes will not be added to the OS. -For Microsemi smartpqi controller support, enable the smartpqi driver +For Microchip smartpqi controller support, enable the smartpqi driver when configuring the kernel. For more information on the PQI Queuing Interface, please see: -- cgit v1.2.3 From 2a71268160b43638e9a6a553b71bc9be1ee7d9c1 Mon Sep 17 00:00:00 2001 From: Don Brace Date: Fri, 28 Aug 2020 16:09:22 -0500 Subject: scsi: smartpqi: Update copyright Update driver copyright. Link: https://lore.kernel.org/r/159864896224.13630.9798419111015060967.stgit@brunhilda Reviewed-by: Scott Teel Reviewed-by: Scott Benesh Signed-off-by: Don Brace Signed-off-by: Martin K. Petersen --- drivers/scsi/smartpqi/Kconfig | 4 ++-- drivers/scsi/smartpqi/smartpqi.h | 2 +- drivers/scsi/smartpqi/smartpqi_init.c | 2 +- drivers/scsi/smartpqi/smartpqi_sas_transport.c | 2 +- drivers/scsi/smartpqi/smartpqi_sis.c | 2 +- drivers/scsi/smartpqi/smartpqi_sis.h | 2 +- 6 files changed, 7 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/smartpqi/Kconfig b/drivers/scsi/smartpqi/Kconfig index 8eec241f074b..cb9e4e968b60 100644 --- a/drivers/scsi/smartpqi/Kconfig +++ b/drivers/scsi/smartpqi/Kconfig @@ -1,11 +1,11 @@ # # Kernel configuration file for the SMARTPQI # -# Copyright (c) 2019 Microchip Technology Inc. and its subsidiaries +# Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries # Copyright (c) 2017-2018 Microsemi Corporation # Copyright (c) 2016 Microsemi Corporation # Copyright (c) 2016 PMC-Sierra, Inc. -# (mailto:esc.storagedev@microsemi.com) +# (mailto:storagedev@microchip.com) # This program is free software; you can redistribute it and/or # modify it under the terms of the GNU General Public License diff --git a/drivers/scsi/smartpqi/smartpqi.h b/drivers/scsi/smartpqi/smartpqi.h index d0c635971481..3e54590e6e92 100644 --- a/drivers/scsi/smartpqi/smartpqi.h +++ b/drivers/scsi/smartpqi/smartpqi.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* * driver for Microsemi PQI-based storage controllers - * Copyright (c) 2019 Microchip Technology Inc. and its subsidiaries + * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries * Copyright (c) 2016-2018 Microsemi Corporation * Copyright (c) 2016 PMC-Sierra, Inc. * diff --git a/drivers/scsi/smartpqi/smartpqi_init.c b/drivers/scsi/smartpqi/smartpqi_init.c index a05d6b223857..95a5232bf040 100644 --- a/drivers/scsi/smartpqi/smartpqi_init.c +++ b/drivers/scsi/smartpqi/smartpqi_init.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* * driver for Microsemi PQI-based storage controllers - * Copyright (c) 2019 Microchip Technology Inc. and its subsidiaries + * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries * Copyright (c) 2016-2018 Microsemi Corporation * Copyright (c) 2016 PMC-Sierra, Inc. * diff --git a/drivers/scsi/smartpqi/smartpqi_sas_transport.c b/drivers/scsi/smartpqi/smartpqi_sas_transport.c index b7289112455c..999870eb9ed8 100644 --- a/drivers/scsi/smartpqi/smartpqi_sas_transport.c +++ b/drivers/scsi/smartpqi/smartpqi_sas_transport.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* * driver for Microsemi PQI-based storage controllers - * Copyright (c) 2019 Microchip Technology Inc. and its subsidiaries + * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries * Copyright (c) 2016-2018 Microsemi Corporation * Copyright (c) 2016 PMC-Sierra, Inc. * diff --git a/drivers/scsi/smartpqi/smartpqi_sis.c b/drivers/scsi/smartpqi/smartpqi_sis.c index f0d6e88ba2c1..26ea6b9d4199 100644 --- a/drivers/scsi/smartpqi/smartpqi_sis.c +++ b/drivers/scsi/smartpqi/smartpqi_sis.c @@ -1,7 +1,7 @@ // SPDX-License-Identifier: GPL-2.0 /* * driver for Microsemi PQI-based storage controllers - * Copyright (c) 2019 Microchip Technology Inc. and its subsidiaries + * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries * Copyright (c) 2016-2018 Microsemi Corporation * Copyright (c) 2016 PMC-Sierra, Inc. * diff --git a/drivers/scsi/smartpqi/smartpqi_sis.h b/drivers/scsi/smartpqi/smartpqi_sis.h index 86b0e484d921..878d34ca6532 100644 --- a/drivers/scsi/smartpqi/smartpqi_sis.h +++ b/drivers/scsi/smartpqi/smartpqi_sis.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* * driver for Microsemi PQI-based storage controllers - * Copyright (c) 2019 Microchip Technology Inc. and its subsidiaries + * Copyright (c) 2019-2020 Microchip Technology Inc. and its subsidiaries * Copyright (c) 2016-2018 Microsemi Corporation * Copyright (c) 2016 PMC-Sierra, Inc. * -- cgit v1.2.3 From 307348f6ab144bbb625214f46bc88e810591ae65 Mon Sep 17 00:00:00 2001 From: Can Guo Date: Mon, 24 Aug 2020 19:07:05 -0700 Subject: scsi: ufs: Abort tasks before clearing them from doorbell MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit To recover non-fatal errors, no full reset is required, err_handler only clears those pending TRs/TMRs so that SCSI layer can re-issue them. In current err_handler, TRs are directly cleared from UFS host's doorbell but not aborted from device side. However, according to the UFSHCI JEDEC spec, the host software shall use UTP Transfer Request List Clear Register to clear a task from UFS host's doorbell only when a UTP Transfer Request is expected to not be completed, e.g. when the host software receives a “FUNCTION COMPLETE” Task Management response which means a Transfer Request was aborted. To follow the UFSHCI JEDEC spec, in err_handler, abort one TR before clearing it from doorbell. Link: https://lore.kernel.org/r/1598321228-21093-2-git-send-email-cang@codeaurora.org Acked-by: Stanley Chu Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 143 ++++++++++++++++++++++++++-------------------- 1 file changed, 81 insertions(+), 62 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 0beb35d8d754..34b54213406a 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -238,6 +238,7 @@ static int ufshcd_setup_hba_vreg(struct ufs_hba *hba, bool on); static int ufshcd_setup_vreg(struct ufs_hba *hba, bool on); static inline int ufshcd_config_vreg_hpm(struct ufs_hba *hba, struct ufs_vreg *vreg); +static int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag); static int ufshcd_wb_buf_flush_enable(struct ufs_hba *hba); static int ufshcd_wb_buf_flush_disable(struct ufs_hba *hba); static int ufshcd_wb_ctrl(struct ufs_hba *hba, bool enable); @@ -5672,8 +5673,8 @@ static void ufshcd_err_handler(struct work_struct *work) { struct ufs_hba *hba; unsigned long flags; - u32 err_xfer = 0; - u32 err_tm = 0; + bool err_xfer = false; + bool err_tm = false; int err = 0; int tag; bool needs_reset = false; @@ -5749,7 +5750,7 @@ static void ufshcd_err_handler(struct work_struct *work) spin_unlock_irqrestore(hba->host->host_lock, flags); /* Clear pending transfer requests */ for_each_set_bit(tag, &hba->outstanding_reqs, hba->nutrs) { - if (ufshcd_clear_cmd(hba, tag)) { + if (ufshcd_try_to_abort_task(hba, tag)) { err_xfer = true; goto lock_skip_pending_xfer_clear; } @@ -6501,7 +6502,7 @@ static void ufshcd_set_req_abort_skip(struct ufs_hba *hba, unsigned long bitmap) } /** - * ufshcd_abort - abort a specific command + * ufshcd_try_to_abort_task - abort a specific task * @cmd: SCSI command pointer * * Abort the pending command in device by sending UFS_ABORT_TASK task management @@ -6510,6 +6511,80 @@ static void ufshcd_set_req_abort_skip(struct ufs_hba *hba, unsigned long bitmap) * issued. To avoid that, first issue UFS_QUERY_TASK to check if the command is * really issued and then try to abort it. * + * Returns zero on success, non-zero on failure + */ +static int ufshcd_try_to_abort_task(struct ufs_hba *hba, int tag) +{ + struct ufshcd_lrb *lrbp = &hba->lrb[tag]; + int err = 0; + int poll_cnt; + u8 resp = 0xF; + u32 reg; + + for (poll_cnt = 100; poll_cnt; poll_cnt--) { + err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, + UFS_QUERY_TASK, &resp); + if (!err && resp == UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED) { + /* cmd pending in the device */ + dev_err(hba->dev, "%s: cmd pending in the device. tag = %d\n", + __func__, tag); + break; + } else if (!err && resp == UPIU_TASK_MANAGEMENT_FUNC_COMPL) { + /* + * cmd not pending in the device, check if it is + * in transition. + */ + dev_err(hba->dev, "%s: cmd at tag %d not pending in the device.\n", + __func__, tag); + reg = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); + if (reg & (1 << tag)) { + /* sleep for max. 200us to stabilize */ + usleep_range(100, 200); + continue; + } + /* command completed already */ + dev_err(hba->dev, "%s: cmd at tag %d successfully cleared from DB.\n", + __func__, tag); + goto out; + } else { + dev_err(hba->dev, + "%s: no response from device. tag = %d, err %d\n", + __func__, tag, err); + if (!err) + err = resp; /* service response error */ + goto out; + } + } + + if (!poll_cnt) { + err = -EBUSY; + goto out; + } + + err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, + UFS_ABORT_TASK, &resp); + if (err || resp != UPIU_TASK_MANAGEMENT_FUNC_COMPL) { + if (!err) { + err = resp; /* service response error */ + dev_err(hba->dev, "%s: issued. tag = %d, err %d\n", + __func__, tag, err); + } + goto out; + } + + err = ufshcd_clear_cmd(hba, tag); + if (err) + dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", + __func__, tag, err); + +out: + return err; +} + +/** + * ufshcd_abort - scsi host template eh_abort_handler callback + * @cmd: SCSI command pointer + * * Returns SUCCESS/FAILED */ static int ufshcd_abort(struct scsi_cmnd *cmd) @@ -6519,8 +6594,6 @@ static int ufshcd_abort(struct scsi_cmnd *cmd) unsigned long flags; unsigned int tag; int err = 0; - int poll_cnt; - u8 resp = 0xF; struct ufshcd_lrb *lrbp; u32 reg; @@ -6589,63 +6662,9 @@ static int ufshcd_abort(struct scsi_cmnd *cmd) goto out; } - for (poll_cnt = 100; poll_cnt; poll_cnt--) { - err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, - UFS_QUERY_TASK, &resp); - if (!err && resp == UPIU_TASK_MANAGEMENT_FUNC_SUCCEEDED) { - /* cmd pending in the device */ - dev_err(hba->dev, "%s: cmd pending in the device. tag = %d\n", - __func__, tag); - break; - } else if (!err && resp == UPIU_TASK_MANAGEMENT_FUNC_COMPL) { - /* - * cmd not pending in the device, check if it is - * in transition. - */ - dev_err(hba->dev, "%s: cmd at tag %d not pending in the device.\n", - __func__, tag); - reg = ufshcd_readl(hba, REG_UTP_TRANSFER_REQ_DOOR_BELL); - if (reg & (1 << tag)) { - /* sleep for max. 200us to stabilize */ - usleep_range(100, 200); - continue; - } - /* command completed already */ - dev_err(hba->dev, "%s: cmd at tag %d successfully cleared from DB.\n", - __func__, tag); - goto out; - } else { - dev_err(hba->dev, - "%s: no response from device. tag = %d, err %d\n", - __func__, tag, err); - if (!err) - err = resp; /* service response error */ - goto out; - } - } - - if (!poll_cnt) { - err = -EBUSY; - goto out; - } - - err = ufshcd_issue_tm_cmd(hba, lrbp->lun, lrbp->task_tag, - UFS_ABORT_TASK, &resp); - if (err || resp != UPIU_TASK_MANAGEMENT_FUNC_COMPL) { - if (!err) { - err = resp; /* service response error */ - dev_err(hba->dev, "%s: issued. tag = %d, err %d\n", - __func__, tag, err); - } - goto out; - } - - err = ufshcd_clear_cmd(hba, tag); - if (err) { - dev_err(hba->dev, "%s: Failed clearing cmd at tag %d, err %d\n", - __func__, tag, err); + err = ufshcd_try_to_abort_task(hba, tag); + if (err) goto out; - } spin_lock_irqsave(host->host_lock, flags); __ufshcd_transfer_req_compl(hba, (1UL << tag)); -- cgit v1.2.3 From 2355b66ed20ce442603aadc05b150db7282d8acf Mon Sep 17 00:00:00 2001 From: Can Guo Date: Mon, 24 Aug 2020 19:07:06 -0700 Subject: scsi: ufs: Handle LINERESET indication in err handler PA Layer issues a LINERESET to the PHY at the recovery step in the Power Mode change operation. If it happens during auto or manual hibern8 enter, even if hibern8 enter succeeds, UFS power mode shall be set to PWM-G1 mode and kept in that mode after exit from hibern8, leading to bad performance. Handle the LINERESET in the eh_work by restoring power mode to HS mode after all pending reqs and tasks are cleared from doorbell. Link: https://lore.kernel.org/r/1598321228-21093-3-git-send-email-cang@codeaurora.org Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 111 ++++++++++++++++++++++++++++++++++++++++------ drivers/scsi/ufs/ufshcd.h | 2 + drivers/scsi/ufs/ufshci.h | 1 + drivers/scsi/ufs/unipro.h | 3 ++ 4 files changed, 103 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 34b54213406a..05716f62febe 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -146,6 +146,7 @@ enum { UFSHCD_UIC_NL_ERROR = (1 << 3), /* Network layer error */ UFSHCD_UIC_TL_ERROR = (1 << 4), /* Transport Layer error */ UFSHCD_UIC_DME_ERROR = (1 << 5), /* DME error */ + UFSHCD_UIC_PA_GENERIC_ERROR = (1 << 6), /* Generic PA error */ }; #define ufshcd_set_eh_in_progress(h) \ @@ -4072,7 +4073,8 @@ static int ufshcd_change_power_mode(struct ufs_hba *hba, int ret; /* if already configured to the requested pwr_mode */ - if (pwr_mode->gear_rx == hba->pwr_info.gear_rx && + if (!hba->force_pmc && + pwr_mode->gear_rx == hba->pwr_info.gear_rx && pwr_mode->gear_tx == hba->pwr_info.gear_tx && pwr_mode->lane_rx == hba->pwr_info.lane_rx && pwr_mode->lane_tx == hba->pwr_info.lane_tx && @@ -4506,6 +4508,8 @@ link_startup: if (ret) goto out; + /* Clear UECPA once due to LINERESET has happened during LINK_STARTUP */ + ufshcd_readl(hba, REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER); ret = ufshcd_make_hba_operational(hba); out: if (ret) { @@ -5665,6 +5669,22 @@ static inline void ufshcd_recover_pm_error(struct ufs_hba *hba) } #endif +static bool ufshcd_is_pwr_mode_restore_needed(struct ufs_hba *hba) +{ + struct ufs_pa_layer_attr *pwr_info = &hba->pwr_info; + u32 mode; + + ufshcd_dme_get(hba, UIC_ARG_MIB(PA_PWRMODE), &mode); + + if (pwr_info->pwr_rx != ((mode >> PWRMODE_RX_OFFSET) & PWRMODE_MASK)) + return true; + + if (pwr_info->pwr_tx != (mode & PWRMODE_MASK)) + return true; + + return false; +} + /** * ufshcd_err_handler - handle UFS errors that require s/w attention * @work: pointer to work structure @@ -5675,9 +5695,9 @@ static void ufshcd_err_handler(struct work_struct *work) unsigned long flags; bool err_xfer = false; bool err_tm = false; - int err = 0; + int err = 0, pmc_err; int tag; - bool needs_reset = false; + bool needs_reset = false, needs_restore = false; hba = container_of(work, struct ufs_hba, eh_work); @@ -5725,8 +5745,9 @@ static void ufshcd_err_handler(struct work_struct *work) UFSHCD_UIC_DL_TCx_REPLAY_ERROR)))) needs_reset = true; - if (hba->saved_err & (INT_FATAL_ERRORS | UIC_ERROR | - UFSHCD_UIC_HIBERN8_MASK)) { + if ((hba->saved_err & (INT_FATAL_ERRORS | UFSHCD_UIC_HIBERN8_MASK)) || + (hba->saved_uic_err && + (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { bool pr_prdt = !!(hba->saved_err & SYSTEM_BUS_FATAL_ERROR); spin_unlock_irqrestore(hba->host->host_lock, flags); @@ -5744,8 +5765,25 @@ static void ufshcd_err_handler(struct work_struct *work) * host reset and restore */ if (needs_reset) - goto skip_pending_xfer_clear; + goto do_reset; + /* + * If LINERESET was caught, UFS might have been put to PWM mode, + * check if power mode restore is needed. + */ + if (hba->saved_uic_err & UFSHCD_UIC_PA_GENERIC_ERROR) { + hba->saved_uic_err &= ~UFSHCD_UIC_PA_GENERIC_ERROR; + if (!hba->saved_uic_err) + hba->saved_err &= ~UIC_ERROR; + spin_unlock_irqrestore(hba->host->host_lock, flags); + if (ufshcd_is_pwr_mode_restore_needed(hba)) + needs_restore = true; + spin_lock_irqsave(hba->host->host_lock, flags); + if (!hba->saved_err && !needs_restore) + goto skip_err_handling; + } + + hba->silence_err_logs = true; /* release lock as clear command might sleep */ spin_unlock_irqrestore(hba->host->host_lock, flags); /* Clear pending transfer requests */ @@ -5769,11 +5807,38 @@ lock_skip_pending_xfer_clear: /* Complete the requests that are cleared by s/w */ ufshcd_complete_requests(hba); + hba->silence_err_logs = false; - if (err_xfer || err_tm) + if (err_xfer || err_tm) { needs_reset = true; + goto do_reset; + } -skip_pending_xfer_clear: + /* + * After all reqs and tasks are cleared from doorbell, + * now it is safe to retore power mode. + */ + if (needs_restore) { + spin_unlock_irqrestore(hba->host->host_lock, flags); + /* + * Hold the scaling lock just in case dev cmds + * are sent via bsg and/or sysfs. + */ + down_write(&hba->clk_scaling_lock); + hba->force_pmc = true; + pmc_err = ufshcd_config_pwr_mode(hba, &(hba->pwr_info)); + if (pmc_err) { + needs_reset = true; + dev_err(hba->dev, "%s: Failed to restore power mode, err = %d\n", + __func__, pmc_err); + } + hba->force_pmc = false; + ufshcd_print_pwr_info(hba); + up_write(&hba->clk_scaling_lock); + spin_lock_irqsave(hba->host->host_lock, flags); + } + +do_reset: /* Fatal errors need reset */ if (needs_reset) { unsigned long max_doorbells = (1UL << hba->nutrs) - 1; @@ -5829,17 +5894,33 @@ static irqreturn_t ufshcd_update_uic_error(struct ufs_hba *hba) u32 reg; irqreturn_t retval = IRQ_NONE; - /* PHY layer lane error */ + /* PHY layer error */ reg = ufshcd_readl(hba, REG_UIC_ERROR_CODE_PHY_ADAPTER_LAYER); - /* Ignore LINERESET indication, as this is not an error */ if ((reg & UIC_PHY_ADAPTER_LAYER_ERROR) && - (reg & UIC_PHY_ADAPTER_LAYER_LANE_ERR_MASK)) { + (reg & UIC_PHY_ADAPTER_LAYER_ERROR_CODE_MASK)) { + ufshcd_update_reg_hist(&hba->ufs_stats.pa_err, reg); /* * To know whether this error is fatal or not, DB timeout * must be checked but this error is handled separately. */ - dev_dbg(hba->dev, "%s: UIC Lane error reported\n", __func__); - ufshcd_update_reg_hist(&hba->ufs_stats.pa_err, reg); + if (reg & UIC_PHY_ADAPTER_LAYER_LANE_ERR_MASK) + dev_dbg(hba->dev, "%s: UIC Lane error reported\n", + __func__); + + /* Got a LINERESET indication. */ + if (reg & UIC_PHY_ADAPTER_LAYER_GENERIC_ERROR) { + struct uic_command *cmd = NULL; + + hba->uic_error |= UFSHCD_UIC_PA_GENERIC_ERROR; + if (hba->uic_async_done && hba->active_uic_cmd) + cmd = hba->active_uic_cmd; + /* + * Ignore the LINERESET during power mode change + * operation via DME_SET command. + */ + if (cmd && (cmd->command == UIC_CMD_DME_SET)) + hba->uic_error &= ~UFSHCD_UIC_PA_GENERIC_ERROR; + } retval |= IRQ_HANDLED; } @@ -5956,7 +6037,9 @@ static irqreturn_t ufshcd_check_errors(struct ufs_hba *hba) hba->saved_uic_err |= hba->uic_error; /* dump controller state before resetting */ - if (hba->saved_err & (INT_FATAL_ERRORS | UIC_ERROR)) { + if ((hba->saved_err & (INT_FATAL_ERRORS)) || + (hba->saved_uic_err && + (hba->saved_uic_err != UFSHCD_UIC_PA_GENERIC_ERROR))) { dev_err(hba->dev, "%s: saved_err 0x%x saved_uic_err 0x%x\n", __func__, hba->saved_err, hba->saved_uic_err); diff --git a/drivers/scsi/ufs/ufshcd.h b/drivers/scsi/ufs/ufshcd.h index a88dfac7c9e9..8011fdc89fb1 100644 --- a/drivers/scsi/ufs/ufshcd.h +++ b/drivers/scsi/ufs/ufshcd.h @@ -634,6 +634,7 @@ struct ufs_hba_variant_params { * @saved_err: sticky error mask * @saved_uic_err: sticky UIC error mask * @force_reset: flag to force eh_work perform a full reset + * @force_pmc: flag to force a power mode change * @silence_err_logs: flag to silence error logs * @dev_cmd: ufs device management command information * @last_dme_cmd_tstamp: time stamp of the last completed DME command @@ -733,6 +734,7 @@ struct ufs_hba { u32 saved_uic_err; struct ufs_stats ufs_stats; bool force_reset; + bool force_pmc; bool silence_err_logs; /* Device management request data */ diff --git a/drivers/scsi/ufs/ufshci.h b/drivers/scsi/ufs/ufshci.h index ba31b090f784..6795e1f0e8f8 100644 --- a/drivers/scsi/ufs/ufshci.h +++ b/drivers/scsi/ufs/ufshci.h @@ -171,6 +171,7 @@ enum { #define UIC_PHY_ADAPTER_LAYER_ERROR 0x80000000 #define UIC_PHY_ADAPTER_LAYER_ERROR_CODE_MASK 0x1F #define UIC_PHY_ADAPTER_LAYER_LANE_ERR_MASK 0xF +#define UIC_PHY_ADAPTER_LAYER_GENERIC_ERROR 0x10 /* UECDL - Host UIC Error Code Data Link Layer 3Ch */ #define UIC_DATA_LINK_LAYER_ERROR 0x80000000 diff --git a/drivers/scsi/ufs/unipro.h b/drivers/scsi/ufs/unipro.h index 4ee64782fd48..f6b52ce36de6 100644 --- a/drivers/scsi/ufs/unipro.h +++ b/drivers/scsi/ufs/unipro.h @@ -205,6 +205,9 @@ enum { UNCHANGED = 7, }; +#define PWRMODE_MASK 0xF +#define PWRMODE_RX_OFFSET 4 + /* PA TX/RX Frequency Series */ enum { PA_HS_MODE_A = 1, -- cgit v1.2.3 From a08a07326510eca91c414f4cddfcecbbeda50fe0 Mon Sep 17 00:00:00 2001 From: Joe Perches Date: Mon, 24 Aug 2020 21:56:17 -0700 Subject: scsi: arm: Avoid comma separated statements Use semicolons and braces. Link: https://lore.kernel.org/r/be30bb0f24a5fb4f70ca8ed7027ca7555816a3fb.1598331149.git.joe@perches.com Signed-off-by: Joe Perches Signed-off-by: Martin K. Petersen --- drivers/scsi/arm/cumana_2.c | 19 +++++++++++-------- drivers/scsi/arm/eesox.c | 9 +++++---- drivers/scsi/arm/powertec.c | 9 +++++---- 3 files changed, 21 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/arm/cumana_2.c b/drivers/scsi/arm/cumana_2.c index 29294f0ef8a9..9dcd912267e6 100644 --- a/drivers/scsi/arm/cumana_2.c +++ b/drivers/scsi/arm/cumana_2.c @@ -166,14 +166,15 @@ cumanascsi_2_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp, bufs = copy_SCp_to_sg(&info->sg[0], SCp, NR_SG); - if (direction == DMA_OUT) - map_dir = DMA_TO_DEVICE, - dma_dir = DMA_MODE_WRITE, + if (direction == DMA_OUT) { + map_dir = DMA_TO_DEVICE; + dma_dir = DMA_MODE_WRITE; alatch_dir = ALATCH_DMA_OUT; - else - map_dir = DMA_FROM_DEVICE, - dma_dir = DMA_MODE_READ, + } else { + map_dir = DMA_FROM_DEVICE; + dma_dir = DMA_MODE_READ; alatch_dir = ALATCH_DMA_IN; + } dma_map_sg(dev, info->sg, bufs, map_dir); @@ -326,10 +327,12 @@ cumanascsi_2_set_proc_info(struct Scsi_Host *host, char *buffer, int length) cumanascsi_2_terminator_ctl(host, 0); else ret = -EINVAL; - } else + } else { ret = -EINVAL; - } else + } + } else { ret = -EINVAL; + } return ret; } diff --git a/drivers/scsi/arm/eesox.c b/drivers/scsi/arm/eesox.c index 591ae2a6dd74..5eb2415dda9d 100644 --- a/drivers/scsi/arm/eesox.c +++ b/drivers/scsi/arm/eesox.c @@ -165,12 +165,13 @@ eesoxscsi_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp, bufs = copy_SCp_to_sg(&info->sg[0], SCp, NR_SG); - if (direction == DMA_OUT) - map_dir = DMA_TO_DEVICE, + if (direction == DMA_OUT) { + map_dir = DMA_TO_DEVICE; dma_dir = DMA_MODE_WRITE; - else - map_dir = DMA_FROM_DEVICE, + } else { + map_dir = DMA_FROM_DEVICE; dma_dir = DMA_MODE_READ; + } dma_map_sg(dev, info->sg, bufs, map_dir); diff --git a/drivers/scsi/arm/powertec.c b/drivers/scsi/arm/powertec.c index d99ef014528e..9cc73da4e876 100644 --- a/drivers/scsi/arm/powertec.c +++ b/drivers/scsi/arm/powertec.c @@ -138,12 +138,13 @@ powertecscsi_dma_setup(struct Scsi_Host *host, struct scsi_pointer *SCp, bufs = copy_SCp_to_sg(&info->sg[0], SCp, NR_SG); - if (direction == DMA_OUT) - map_dir = DMA_TO_DEVICE, + if (direction == DMA_OUT) { + map_dir = DMA_TO_DEVICE; dma_dir = DMA_MODE_WRITE; - else - map_dir = DMA_FROM_DEVICE, + } else { + map_dir = DMA_FROM_DEVICE; dma_dir = DMA_MODE_READ; + } dma_map_sg(dev, info->sg, bufs, map_dir); -- cgit v1.2.3 From e5f48ac42cc99e339fcb5392b698b4093001b859 Mon Sep 17 00:00:00 2001 From: Xianting Tian Date: Sat, 29 Aug 2020 15:57:46 +0800 Subject: scsi: qla2xxx: Fix the return value A negative error code should be returned. Link: https://lore.kernel.org/r/20200829075746.19166-1-tian.xianting@h3c.com Acked-by: Nilesh Javali Signed-off-by: Xianting Tian Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_target.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index f2bb841c2059..4c869b5561ac 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -3781,7 +3781,7 @@ int qlt_abort_cmd(struct qla_tgt_cmd *cmd) "multiple abort. %p transport_state %x, t_state %x, " "se_cmd_flags %x\n", cmd, cmd->se_cmd.transport_state, cmd->se_cmd.t_state, cmd->se_cmd.se_cmd_flags); - return EIO; + return -EIO; } cmd->aborted = 1; cmd->trc_flags |= TRC_ABORT; -- cgit v1.2.3 From 255937d7739068e6a6649783ebb7bd9fe284a2b4 Mon Sep 17 00:00:00 2001 From: Sergey Shtylyov Date: Sat, 29 Aug 2020 23:19:42 +0300 Subject: scsi: fdomain_isa: Merge branches in fdomain_isa_match() The *else* branch of the *if* (base) statement in fdomain_isa_match() is immediately followed by the *if* (!base) statement. Simplify the code by removing the unneeded *if*. Link: https://lore.kernel.org/r/df68e341-5113-4cf2-b64c-dc1ad0b686ac@omprussia.ru Signed-off-by: Sergey Shtylyov Signed-off-by: Martin K. Petersen --- drivers/scsi/fdomain_isa.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/fdomain_isa.c b/drivers/scsi/fdomain_isa.c index f2da4fa382e8..e0cdcd2003d0 100644 --- a/drivers/scsi/fdomain_isa.c +++ b/drivers/scsi/fdomain_isa.c @@ -111,12 +111,11 @@ static int fdomain_isa_match(struct device *dev, unsigned int ndev) base = readb(p + sig->base_offset) + (readb(p + sig->base_offset + 1) << 8); iounmap(p); - if (base) + if (base) { dev_info(dev, "BIOS at 0x%lx specifies I/O base 0x%x\n", bios_base, base); - else + } else { /* no I/O base in BIOS area */ dev_info(dev, "BIOS at 0x%lx\n", bios_base); - if (!base) { /* no I/O base in BIOS area */ /* save BIOS signature for later use in port probing */ saved_sig = sig; return 0; -- cgit v1.2.3 From c65b4f37db46c1b2e213d1c7f4baadf998f50fff Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Mon, 31 Aug 2020 16:11:23 +0800 Subject: scsi: fnic: Remove set but not used 'old_vlan' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/fnic/fnic_main.c: In function ‘fnic_set_vlan’: drivers/scsi/fnic/fnic_main.c:555:6: warning: variable ‘old_vlan’ set but not used [-Wunused-but-set-variable] 555 | u16 old_vlan; | ^~~~~~~~ Link: https://lore.kernel.org/r/20200831081126.3251288-2-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_main.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 7910b573bacb..8258348857e2 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -552,8 +552,7 @@ static u8 *fnic_get_mac(struct fc_lport *lport) static void fnic_set_vlan(struct fnic *fnic, u16 vlan_id) { - u16 old_vlan; - old_vlan = vnic_dev_set_default_vlan(fnic->vdev, vlan_id); + vnic_dev_set_default_vlan(fnic->vdev, vlan_id); } static int fnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent) -- cgit v1.2.3 From 6c53316d48989f95986d3fa78c38b8ca90905bbb Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Mon, 31 Aug 2020 16:11:24 +0800 Subject: scsi: fnic: Remove set but not used variable in is_fnic_fip_flogi_reject() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/fnic/fnic_fcs.c: In function ‘is_fnic_fip_flogi_reject’: drivers/scsi/fnic/fnic_fcs.c:317:9: warning: variable ‘els_len’ set but not used [-Wunused-but-set-variable] 317 | size_t els_len = 0; | ^~~~~~~ drivers/scsi/fnic/fnic_fcs.c:312:21: warning: variable ‘els_dtype’ set but not used [-Wunused-but-set-variable] 312 | enum fip_desc_type els_dtype = 0; | ^~~~~~~~~ Link: https://lore.kernel.org/r/20200831081126.3251288-3-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_fcs.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c index 673887e383cc..894c0d28c534 100644 --- a/drivers/scsi/fnic/fnic_fcs.c +++ b/drivers/scsi/fnic/fnic_fcs.c @@ -309,12 +309,10 @@ static inline int is_fnic_fip_flogi_reject(struct fcoe_ctlr *fip, struct fc_frame_header *fh = NULL; struct fip_desc *desc; struct fip_encaps *els; - enum fip_desc_type els_dtype = 0; u16 op; u8 els_op; u8 sub; - size_t els_len = 0; size_t rlen; size_t dlen = 0; @@ -346,10 +344,8 @@ static inline int is_fnic_fip_flogi_reject(struct fcoe_ctlr *fip, if (dlen < sizeof(*els) + sizeof(*fh) + 1) return 0; - els_len = dlen - sizeof(*els); els = (struct fip_encaps *)desc; fh = (struct fc_frame_header *)(els + 1); - els_dtype = desc->fip_dtype; if (!fh) return 0; -- cgit v1.2.3 From 446034e3d419a069348007bc84364cef017a442a Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Mon, 31 Aug 2020 16:11:25 +0800 Subject: scsi: fnic: Remove set but not used 'fr_len' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/fnic/fnic_fcs.c: In function ‘fnic_fcoe_send_vlan_req’: drivers/scsi/fnic/fnic_fcs.c:379:6: warning: variable ‘fr_len’ set but not used [-Wunused-but-set-variable] 379 | int fr_len; | ^~~~~~ Link: https://lore.kernel.org/r/20200831081126.3251288-4-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_fcs.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c index 894c0d28c534..643622f8e1d9 100644 --- a/drivers/scsi/fnic/fnic_fcs.c +++ b/drivers/scsi/fnic/fnic_fcs.c @@ -372,7 +372,6 @@ static void fnic_fcoe_send_vlan_req(struct fnic *fnic) struct fnic_stats *fnic_stats = &fnic->fnic_stats; struct sk_buff *skb; char *eth_fr; - int fr_len; struct fip_vlan *vlan; u64 vlan_tov; @@ -387,7 +386,6 @@ static void fnic_fcoe_send_vlan_req(struct fnic *fnic) if (!skb) return; - fr_len = sizeof(*vlan); eth_fr = (char *)skb->data; vlan = (struct fip_vlan *)eth_fr; -- cgit v1.2.3 From 16d7fd9079af2a5104c445fe0e5d5ed8d403e2f2 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Mon, 31 Aug 2020 16:11:26 +0800 Subject: scsi: fnic: Remove set but not used 'eth_hdrs_stripped' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/fnic/fnic_fcs.c: In function ‘fnic_rq_cmpl_frame_recv’: drivers/scsi/fnic/fnic_fcs.c:840:15: warning: variable ‘eth_hdrs_stripped’ set but not used [-Wunused-but-set-variable] 840 | unsigned int eth_hdrs_stripped; | ^~~~~~~~~~~~~~~~~ Link: https://lore.kernel.org/r/20200831081126.3251288-5-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_fcs.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/scsi/fnic/fnic_fcs.c b/drivers/scsi/fnic/fnic_fcs.c index 643622f8e1d9..e3384afb7cbd 100644 --- a/drivers/scsi/fnic/fnic_fcs.c +++ b/drivers/scsi/fnic/fnic_fcs.c @@ -831,7 +831,6 @@ static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc struct sk_buff *skb; struct fc_frame *fp; struct fnic_stats *fnic_stats = &fnic->fnic_stats; - unsigned int eth_hdrs_stripped; u8 type, color, eop, sop, ingress_port, vlan_stripped; u8 fcoe = 0, fcoe_sof, fcoe_eof; u8 fcoe_fc_crc_ok = 1, fcoe_enc_error = 0; @@ -861,7 +860,6 @@ static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc &ingress_port, &packet_error, &fcoe_enc_error, &fcs_ok, &vlan_stripped, &vlan); - eth_hdrs_stripped = 1; skb_trim(skb, fcp_bytes_written); fr_sof(fp) = sof; fr_eof(fp) = eof; @@ -878,7 +876,6 @@ static void fnic_rq_cmpl_frame_recv(struct vnic_rq *rq, struct cq_desc &tcp_udp_csum_ok, &udp, &tcp, &ipv4_csum_ok, &ipv6, &ipv4, &ipv4_fragment, &fcs_ok); - eth_hdrs_stripped = 0; skb_trim(skb, bytes_written); if (!fcs_ok) { atomic64_inc(&fnic_stats->misc_stats.frame_errors); -- cgit v1.2.3 From 2a5c98d2d2fe2aeaf95274a48fc9d92b5955dc74 Mon Sep 17 00:00:00 2001 From: James Smart Date: Mon, 31 Aug 2020 14:35:18 -0700 Subject: scsi: fc: Add 256GBit speed setting to SCSI FC transport Add 256GBit speed setting to the SCSI FC transport. This speed can be reached via FC trunking techniques. Link: https://lore.kernel.org/r/20200831213518.48409-1-james.smart@broadcom.com Reviewed-by: Himanshu Madhani Signed-off-by: James Smart Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_transport_fc.c | 1 + include/scsi/scsi_transport_fc.h | 1 + 2 files changed, 2 insertions(+) diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c index 2732fa65119c..2ff7f06203da 100644 --- a/drivers/scsi/scsi_transport_fc.c +++ b/drivers/scsi/scsi_transport_fc.c @@ -253,6 +253,7 @@ static const struct { { FC_PORTSPEED_25GBIT, "25 Gbit" }, { FC_PORTSPEED_64GBIT, "64 Gbit" }, { FC_PORTSPEED_128GBIT, "128 Gbit" }, + { FC_PORTSPEED_256GBIT, "256 Gbit" }, { FC_PORTSPEED_NOT_NEGOTIATED, "Not Negotiated" }, }; fc_bitfield_name_search(port_speed, fc_port_speed_names) diff --git a/include/scsi/scsi_transport_fc.h b/include/scsi/scsi_transport_fc.h index 7db2dd783834..1c7dd35cb7a0 100644 --- a/include/scsi/scsi_transport_fc.h +++ b/include/scsi/scsi_transport_fc.h @@ -124,6 +124,7 @@ enum fc_vport_state { #define FC_PORTSPEED_25GBIT 0x800 #define FC_PORTSPEED_64GBIT 0x1000 #define FC_PORTSPEED_128GBIT 0x2000 +#define FC_PORTSPEED_256GBIT 0x4000 #define FC_PORTSPEED_NOT_NEGOTIATED (1 << 15) /* Speed not established */ /* -- cgit v1.2.3 From 847e8355294597898ed3b6c2a3130ab962d03004 Mon Sep 17 00:00:00 2001 From: Xiang Chen Date: Tue, 1 Sep 2020 19:13:03 +0800 Subject: scsi: hisi_sas: Avoid accessing to SSP task for SMP I/Os hisi_sas_slot_task_free() attempts to dereference SSP task for non-ATA tasks. If the task is SMP, the code may reference the wrong structure although this may not cause any problems. To avoid this, only access to SSP task when slot->n_elem_dif is not 0 which indicates this is an SSP task. Link: https://lore.kernel.org/r/1598958790-232272-2-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_main.c | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 11caa4b0d797..fdf5f0f1b60b 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -229,17 +229,18 @@ void hisi_sas_slot_task_free(struct hisi_hba *hisi_hba, struct sas_task *task, task->lldd_task = NULL; if (!sas_protocol_ata(task->task_proto)) { - struct sas_ssp_task *ssp_task = &task->ssp_task; - struct scsi_cmnd *scsi_cmnd = ssp_task->cmd; - if (slot->n_elem) dma_unmap_sg(dev, task->scatter, task->num_scatter, task->data_dir); - if (slot->n_elem_dif) + if (slot->n_elem_dif) { + struct sas_ssp_task *ssp_task = &task->ssp_task; + struct scsi_cmnd *scsi_cmnd = ssp_task->cmd; + dma_unmap_sg(dev, scsi_prot_sglist(scsi_cmnd), scsi_prot_sg_count(scsi_cmnd), task->data_dir); + } } } -- cgit v1.2.3 From 4b3a1f1feda62b0b15536548b6d31ca549de2e3a Mon Sep 17 00:00:00 2001 From: Luo Jiaxing Date: Tue, 1 Sep 2020 19:13:04 +0800 Subject: scsi: hisi_sas: Modify macro name for OOB phy linkrate The macro for OOB phy linkrate is named CFG_PROG_PHY_LINK_RATE_* but that is inaccurate. For clarification, include OOB in macro name. Link: https://lore.kernel.org/r/1598958790-232272-3-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 15 +++++++-------- 1 file changed, 7 insertions(+), 8 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 60adf5c32143..05b60cdf6b24 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -191,8 +191,8 @@ #define PHY_CFG_PHY_RST_OFF 3 #define PHY_CFG_PHY_RST_MSK (0x1 << PHY_CFG_PHY_RST_OFF) #define PROG_PHY_LINK_RATE (PORT_BASE + 0x8) -#define CFG_PROG_PHY_LINK_RATE_OFF 8 -#define CFG_PROG_PHY_LINK_RATE_MSK (0xf << CFG_PROG_PHY_LINK_RATE_OFF) +#define CFG_PROG_OOB_PHY_LINK_RATE_OFF 8 +#define CFG_PROG_OOB_PHY_LINK_RATE_MSK (0xf << CFG_PROG_OOB_PHY_LINK_RATE_OFF) #define PHY_CTRL (PORT_BASE + 0x14) #define PHY_CTRL_RESET_OFF 0 #define PHY_CTRL_RESET_MSK (0x1 << PHY_CTRL_RESET_OFF) @@ -2998,8 +2998,8 @@ static void hisi_sas_bist_test_restore_v3_hw(struct hisi_hba *hisi_hba) /* restore the linkrate */ reg_val = hisi_sas_phy_read32(hisi_hba, phy_id, PROG_PHY_LINK_RATE); /* init OOB link rate as 1.5 Gbits */ - reg_val &= ~CFG_PROG_PHY_LINK_RATE_MSK; - reg_val |= (0x8 << CFG_PROG_PHY_LINK_RATE_OFF); + reg_val &= ~CFG_PROG_OOB_PHY_LINK_RATE_MSK; + reg_val |= (0x8 << CFG_PROG_OOB_PHY_LINK_RATE_OFF); hisi_sas_phy_write32(hisi_hba, phy_id, PROG_PHY_LINK_RATE, reg_val); /* enable PHY */ @@ -3027,8 +3027,8 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) /* set linkrate of bit test*/ reg_val = hisi_sas_phy_read32(hisi_hba, phy_id, PROG_PHY_LINK_RATE); - reg_val &= ~CFG_PROG_PHY_LINK_RATE_MSK; - reg_val |= (linkrate << CFG_PROG_PHY_LINK_RATE_OFF); + reg_val &= ~CFG_PROG_OOB_PHY_LINK_RATE_MSK; + reg_val |= (linkrate << CFG_PROG_OOB_PHY_LINK_RATE_OFF); hisi_sas_phy_write32(hisi_hba, phy_id, PROG_PHY_LINK_RATE, reg_val); @@ -3050,8 +3050,7 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) hisi_sas_phy_write32(hisi_hba, phy_id, SAS_PHY_BIST_CODE, SAS_PHY_BIST_CODE_INIT); - hisi_sas_phy_write32(hisi_hba, phy_id, - SAS_PHY_BIST_CODE1, + hisi_sas_phy_write32(hisi_hba, phy_id, SAS_PHY_BIST_CODE1, SAS_PHY_BIST_CODE1_INIT); mdelay(100); -- cgit v1.2.3 From caeddc0453b9215669a39ea335f1af1f3f91cc99 Mon Sep 17 00:00:00 2001 From: Luo Jiaxing Date: Tue, 1 Sep 2020 19:13:05 +0800 Subject: scsi: hisi_sas: Do not modify upper fields of PROG_PHY_LINK_RATE reg When updating PROG_PHY_LINK_RATE to set linkrate for a phy we used a hard-coded initial value instead of getting the current value from the register. The assumption was that this register would not be modified, but in fact it was partially modified in a new version of hardware. The hard-coded value we used changed the default value of the register to a an incorrect setting and as a result the SAS controller could not change linkrate for the phy. Delete hard-coded value and always read the latest value of register before updating it. Link: https://lore.kernel.org/r/1598958790-232272-4-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 25 ++++++++++++++----------- 1 file changed, 14 insertions(+), 11 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 05b60cdf6b24..b7d94f2e49ae 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -191,6 +191,8 @@ #define PHY_CFG_PHY_RST_OFF 3 #define PHY_CFG_PHY_RST_MSK (0x1 << PHY_CFG_PHY_RST_OFF) #define PROG_PHY_LINK_RATE (PORT_BASE + 0x8) +#define CFG_PROG_PHY_LINK_RATE_OFF 0 +#define CFG_PROG_PHY_LINK_RATE_MSK (0xff << CFG_PROG_PHY_LINK_RATE_OFF) #define CFG_PROG_OOB_PHY_LINK_RATE_OFF 8 #define CFG_PROG_OOB_PHY_LINK_RATE_MSK (0xf << CFG_PROG_OOB_PHY_LINK_RATE_OFF) #define PHY_CTRL (PORT_BASE + 0x14) @@ -598,20 +600,19 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba) hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1); for (i = 0; i < hisi_hba->n_phy; i++) { + enum sas_linkrate max; struct hisi_sas_phy *phy = &hisi_hba->phy[i]; struct asd_sas_phy *sas_phy = &phy->sas_phy; - u32 prog_phy_link_rate = 0x800; + u32 prog_phy_link_rate = hisi_sas_phy_read32(hisi_hba, i, + PROG_PHY_LINK_RATE); + prog_phy_link_rate &= ~CFG_PROG_PHY_LINK_RATE_MSK; if (!sas_phy->phy || (sas_phy->phy->maximum_linkrate < - SAS_LINK_RATE_1_5_GBPS)) { - prog_phy_link_rate = 0x855; - } else { - enum sas_linkrate max = sas_phy->phy->maximum_linkrate; - - prog_phy_link_rate = - hisi_sas_get_prog_phy_linkrate_mask(max) | - 0x800; - } + SAS_LINK_RATE_1_5_GBPS)) + max = SAS_LINK_RATE_12_0_GBPS; + else + max = sas_phy->phy->maximum_linkrate; + prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max); hisi_sas_phy_write32(hisi_hba, i, PROG_PHY_LINK_RATE, prog_phy_link_rate); hisi_sas_phy_write32(hisi_hba, i, SERDES_CFG, 0xffc00); @@ -2501,8 +2502,10 @@ static void phy_set_linkrate_v3_hw(struct hisi_hba *hisi_hba, int phy_no, struct sas_phy_linkrates *r) { enum sas_linkrate max = r->maximum_linkrate; - u32 prog_phy_link_rate = 0x800; + u32 prog_phy_link_rate = hisi_sas_phy_read32(hisi_hba, phy_no, + PROG_PHY_LINK_RATE); + prog_phy_link_rate &= ~CFG_PROG_PHY_LINK_RATE_MSK; prog_phy_link_rate |= hisi_sas_get_prog_phy_linkrate_mask(max); hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE, prog_phy_link_rate); -- cgit v1.2.3 From ca06f2cd01d08fe01b155ee774a2c6518b03b275 Mon Sep 17 00:00:00 2001 From: Luo Jiaxing Date: Tue, 1 Sep 2020 19:13:06 +0800 Subject: scsi: hisi_sas: Make phy index variable name consistent We use "phy_id" to identify phy in the BIST code but the rest of code always uses "phy_no". Change it for consistency. Link: https://lore.kernel.org/r/1598958790-232272-5-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 50 +++++++++++++++++----------------- 1 file changed, 25 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index b7d94f2e49ae..8a5c6f5e2a7a 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2971,42 +2971,42 @@ static void read_iost_itct_cache_v3_hw(struct hisi_hba *hisi_hba, static void hisi_sas_bist_test_prep_v3_hw(struct hisi_hba *hisi_hba) { u32 reg_val; - int phy_id = hisi_hba->debugfs_bist_phy_no; + int phy_no = hisi_hba->debugfs_bist_phy_no; /* disable PHY */ - hisi_sas_phy_enable(hisi_hba, phy_id, 0); + hisi_sas_phy_enable(hisi_hba, phy_no, 0); /* disable ALOS */ - reg_val = hisi_sas_phy_read32(hisi_hba, phy_id, SERDES_CFG); + reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SERDES_CFG); reg_val |= CFG_ALOS_CHK_DISABLE_MSK; - hisi_sas_phy_write32(hisi_hba, phy_id, SERDES_CFG, reg_val); + hisi_sas_phy_write32(hisi_hba, phy_no, SERDES_CFG, reg_val); } static void hisi_sas_bist_test_restore_v3_hw(struct hisi_hba *hisi_hba) { u32 reg_val; - int phy_id = hisi_hba->debugfs_bist_phy_no; + int phy_no = hisi_hba->debugfs_bist_phy_no; /* disable loopback */ - reg_val = hisi_sas_phy_read32(hisi_hba, phy_id, SAS_PHY_BIST_CTRL); + reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL); reg_val &= ~(CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK | CFG_BIST_TEST_MSK); - hisi_sas_phy_write32(hisi_hba, phy_id, SAS_PHY_BIST_CTRL, reg_val); + hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL, reg_val); /* enable ALOS */ - reg_val = hisi_sas_phy_read32(hisi_hba, phy_id, SERDES_CFG); + reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SERDES_CFG); reg_val &= ~CFG_ALOS_CHK_DISABLE_MSK; - hisi_sas_phy_write32(hisi_hba, phy_id, SERDES_CFG, reg_val); + hisi_sas_phy_write32(hisi_hba, phy_no, SERDES_CFG, reg_val); /* restore the linkrate */ - reg_val = hisi_sas_phy_read32(hisi_hba, phy_id, PROG_PHY_LINK_RATE); + reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, PROG_PHY_LINK_RATE); /* init OOB link rate as 1.5 Gbits */ reg_val &= ~CFG_PROG_OOB_PHY_LINK_RATE_MSK; reg_val |= (0x8 << CFG_PROG_OOB_PHY_LINK_RATE_OFF); - hisi_sas_phy_write32(hisi_hba, phy_id, PROG_PHY_LINK_RATE, reg_val); + hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE, reg_val); /* enable PHY */ - hisi_sas_phy_enable(hisi_hba, phy_id, 1); + hisi_sas_phy_enable(hisi_hba, phy_no, 1); } #define SAS_PHY_BIST_CODE_INIT 0x1 @@ -3015,28 +3015,28 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) { u32 reg_val, mode_tmp; u32 linkrate = hisi_hba->debugfs_bist_linkrate; - u32 phy_id = hisi_hba->debugfs_bist_phy_no; + u32 phy_no = hisi_hba->debugfs_bist_phy_no; u32 code_mode = hisi_hba->debugfs_bist_code_mode; u32 path_mode = hisi_hba->debugfs_bist_mode; struct device *dev = hisi_hba->dev; - dev_info(dev, "BIST info:linkrate=%d phy_id=%d code_mode=%d path_mode=%d\n", - linkrate, phy_id, code_mode, path_mode); + dev_info(dev, "BIST info:linkrate=%d phy_no=%d code_mode=%d path_mode=%d\n", + linkrate, phy_no, code_mode, path_mode); mode_tmp = path_mode ? 2 : 1; if (enable) { /* some preparations before bist test */ hisi_sas_bist_test_prep_v3_hw(hisi_hba); /* set linkrate of bit test*/ - reg_val = hisi_sas_phy_read32(hisi_hba, phy_id, + reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, PROG_PHY_LINK_RATE); reg_val &= ~CFG_PROG_OOB_PHY_LINK_RATE_MSK; reg_val |= (linkrate << CFG_PROG_OOB_PHY_LINK_RATE_OFF); - hisi_sas_phy_write32(hisi_hba, phy_id, - PROG_PHY_LINK_RATE, reg_val); + hisi_sas_phy_write32(hisi_hba, phy_no, PROG_PHY_LINK_RATE, + reg_val); /* set code mode of bit test */ - reg_val = hisi_sas_phy_read32(hisi_hba, phy_id, + reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL); reg_val &= ~(CFG_BIST_MODE_SEL_MSK | CFG_LOOP_TEST_MODE_MSK | @@ -3046,28 +3046,28 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) reg_val |= ((code_mode << CFG_BIST_MODE_SEL_OFF) | (mode_tmp << CFG_LOOP_TEST_MODE_OFF) | CFG_BIST_TEST_MSK); - hisi_sas_phy_write32(hisi_hba, phy_id, + hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL, reg_val); /* set the bist init value */ - hisi_sas_phy_write32(hisi_hba, phy_id, + hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CODE, SAS_PHY_BIST_CODE_INIT); - hisi_sas_phy_write32(hisi_hba, phy_id, SAS_PHY_BIST_CODE1, + hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CODE1, SAS_PHY_BIST_CODE1_INIT); mdelay(100); reg_val |= (CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK); - hisi_sas_phy_write32(hisi_hba, phy_id, + hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL, reg_val); /* clear error bit */ mdelay(100); - hisi_sas_phy_read32(hisi_hba, phy_id, SAS_BIST_ERR_CNT); + hisi_sas_phy_read32(hisi_hba, phy_no, SAS_BIST_ERR_CNT); } else { /* disable bist test and recover it */ hisi_hba->debugfs_bist_cnt += hisi_sas_phy_read32(hisi_hba, - phy_id, SAS_BIST_ERR_CNT); + phy_no, SAS_BIST_ERR_CNT); hisi_sas_bist_test_restore_v3_hw(hisi_hba); } -- cgit v1.2.3 From 2c4d582322ff412f83f5c538e33c9440a30db73d Mon Sep 17 00:00:00 2001 From: Luo Jiaxing Date: Tue, 1 Sep 2020 19:13:07 +0800 Subject: scsi: hisi_sas: Add BIST support for phy FFE Add BIST support for phy FFE (Feed forward equalizer) setting. The user can configure FFE through the new debugfs interface. FFE is a parameter used for link layer control. It will affect the link quality between the SAS controller and the backplane. In the BIST test, the FFE interface is provided to assist board testers in optimizing link parameters. The modification of the FFE parameter will affect the test after BIST or the normal running of the board. The user should save the initial FFE values and restore them after BIST test is complete. Link: https://lore.kernel.org/r/1598958790-232272-6-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas.h | 13 ++++++ drivers/scsi/hisi_sas/hisi_sas_main.c | 76 ++++++++++++++++++++++++++++++++++ drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 25 +++++++++-- 3 files changed, 111 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index 2bdd64648ef0..ce6a7d212afe 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -273,6 +273,18 @@ enum hisi_sas_debugfs_cache_type { HISI_SAS_IOST_CACHE, }; +enum hisi_sas_debugfs_bist_ffe_cfg { + FFE_SAS_1_5_GBPS, + FFE_SAS_3_0_GBPS, + FFE_SAS_6_0_GBPS, + FFE_SAS_12_0_GBPS, + FFE_RESV, + FFE_SATA_1_5_GBPS, + FFE_SATA_3_0_GBPS, + FFE_SATA_6_0_GBPS, + FFE_CFG_MAX +}; + struct hisi_sas_hw { int (*hw_init)(struct hisi_hba *hisi_hba); void (*setup_itct)(struct hisi_hba *hisi_hba, @@ -440,6 +452,7 @@ struct hisi_hba { int debugfs_bist_mode; u32 debugfs_bist_cnt; int debugfs_bist_enable; + u32 debugfs_bist_ffe[HISI_SAS_MAX_PHYS][FFE_CFG_MAX]; /* debugfs memories */ /* Put Global AXI and RAS Register into register array */ diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index fdf5f0f1b60b..6cd9b25fbbe7 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -3704,6 +3704,58 @@ static const struct file_operations hisi_sas_debugfs_bist_enable_ops = { .owner = THIS_MODULE, }; +static const struct { + char *name; +} hisi_sas_debugfs_ffe_name[FFE_CFG_MAX] = { + { "SAS_1_5_GBPS" }, + { "SAS_3_0_GBPS" }, + { "SAS_6_0_GBPS" }, + { "SAS_12_0_GBPS" }, + { "FFE_RESV" }, + { "SATA_1_5_GBPS" }, + { "SATA_3_0_GBPS" }, + { "SATA_6_0_GBPS" }, +}; + +static ssize_t hisi_sas_debugfs_write(struct file *filp, + const char __user *buf, + size_t count, loff_t *ppos) +{ + struct seq_file *m = filp->private_data; + u32 *val = m->private; + int res; + + res = kstrtouint_from_user(buf, count, 0, val); + if (res) + return res; + + return count; +} + +static int hisi_sas_debugfs_show(struct seq_file *s, void *p) +{ + u32 *val = s->private; + + seq_printf(s, "0x%x\n", *val); + + return 0; +} + +static int hisi_sas_debugfs_open(struct inode *inode, struct file *filp) +{ + return single_open(filp, hisi_sas_debugfs_show, + inode->i_private); +} + +static const struct file_operations hisi_sas_debugfs_ops = { + .open = hisi_sas_debugfs_open, + .read = seq_read, + .write = hisi_sas_debugfs_write, + .llseek = seq_lseek, + .release = single_release, + .owner = THIS_MODULE, +}; + static ssize_t hisi_sas_debugfs_phy_down_cnt_write(struct file *filp, const char __user *buf, size_t count, loff_t *ppos) @@ -3901,6 +3953,9 @@ static void hisi_sas_debugfs_phy_down_cnt_init(struct hisi_hba *hisi_hba) static void hisi_sas_debugfs_bist_init(struct hisi_hba *hisi_hba) { + struct dentry *ports_dentry; + int phy_no; + hisi_hba->debugfs_bist_dentry = debugfs_create_dir("bist", hisi_hba->debugfs_dir); debugfs_create_file("link_rate", 0600, @@ -3924,6 +3979,27 @@ static void hisi_sas_debugfs_bist_init(struct hisi_hba *hisi_hba) debugfs_create_file("enable", 0600, hisi_hba->debugfs_bist_dentry, hisi_hba, &hisi_sas_debugfs_bist_enable_ops); + ports_dentry = debugfs_create_dir("port", hisi_hba->debugfs_bist_dentry); + + for (phy_no = 0; phy_no < hisi_hba->n_phy; phy_no++) { + struct dentry *port_dentry; + struct dentry *ffe_dentry; + char name[256]; + int i; + + snprintf(name, 256, "%d", phy_no); + port_dentry = debugfs_create_dir(name, ports_dentry); + ffe_dentry = debugfs_create_dir("ffe", port_dentry); + for (i = 0; i < FFE_CFG_MAX; i++) { + if (i == FFE_RESV) + continue; + debugfs_create_file(hisi_sas_debugfs_ffe_name[i].name, + 0600, ffe_dentry, + &hisi_hba->debugfs_bist_ffe[phy_no][i], + &hisi_sas_debugfs_ops); + } + } + hisi_hba->debugfs_bist_linkrate = SAS_LINK_RATE_1_5_GBPS; } diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 8a5c6f5e2a7a..f5d566832d6c 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -297,6 +297,7 @@ #define DMA_RX_STATUS_BUSY_MSK (0x1 << DMA_RX_STATUS_BUSY_OFF) #define COARSETUNE_TIME (PORT_BASE + 0x304) +#define TXDEEMPH_G1 (PORT_BASE + 0x350) #define ERR_CNT_DWS_LOST (PORT_BASE + 0x380) #define ERR_CNT_RESET_PROB (PORT_BASE + 0x384) #define ERR_CNT_INVLD_DW (PORT_BASE + 0x390) @@ -567,7 +568,7 @@ static u32 hisi_sas_phy_read32(struct hisi_hba *hisi_hba, static void init_reg_v3_hw(struct hisi_hba *hisi_hba) { - int i; + int i, j; /* Global registers init */ hisi_sas_write32(hisi_hba, DLVRY_QUEUE_ENABLE, @@ -637,6 +638,13 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba) /* used for 12G negotiate */ hisi_sas_phy_write32(hisi_hba, i, COARSETUNE_TIME, 0x1e); hisi_sas_phy_write32(hisi_hba, i, AIP_LIMIT, 0x2ffff); + + /* get default FFE configuration for BIST */ + for (j = 0; j < FFE_CFG_MAX; j++) { + u32 val = hisi_sas_phy_read32(hisi_hba, i, + TXDEEMPH_G1 + (j * 0x4)); + hisi_hba->debugfs_bist_ffe[i][j] = val; + } } for (i = 0; i < hisi_hba->queue_count; i++) { @@ -2972,10 +2980,16 @@ static void hisi_sas_bist_test_prep_v3_hw(struct hisi_hba *hisi_hba) { u32 reg_val; int phy_no = hisi_hba->debugfs_bist_phy_no; + int i; /* disable PHY */ hisi_sas_phy_enable(hisi_hba, phy_no, 0); + /* update FFE */ + for (i = 0; i < FFE_CFG_MAX; i++) + hisi_sas_phy_write32(hisi_hba, phy_no, TXDEEMPH_G1 + (i * 0x4), + hisi_hba->debugfs_bist_ffe[phy_no][i]); + /* disable ALOS */ reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SERDES_CFG); reg_val |= CFG_ALOS_CHK_DISABLE_MSK; @@ -3016,12 +3030,17 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) u32 reg_val, mode_tmp; u32 linkrate = hisi_hba->debugfs_bist_linkrate; u32 phy_no = hisi_hba->debugfs_bist_phy_no; + u32 *ffe = hisi_hba->debugfs_bist_ffe[phy_no]; u32 code_mode = hisi_hba->debugfs_bist_code_mode; u32 path_mode = hisi_hba->debugfs_bist_mode; struct device *dev = hisi_hba->dev; - dev_info(dev, "BIST info:linkrate=%d phy_no=%d code_mode=%d path_mode=%d\n", - linkrate, phy_no, code_mode, path_mode); + dev_info(dev, "BIST info:phy%d link_rate=%d code_mode=%d path_mode=%d ffe={0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x}\n", + phy_no, linkrate, code_mode, path_mode, + ffe[FFE_SAS_1_5_GBPS], ffe[FFE_SAS_3_0_GBPS], + ffe[FFE_SAS_6_0_GBPS], ffe[FFE_SAS_12_0_GBPS], + ffe[FFE_SATA_1_5_GBPS], ffe[FFE_SATA_3_0_GBPS], + ffe[FFE_SATA_6_0_GBPS]); mode_tmp = path_mode ? 2 : 1; if (enable) { /* some preparations before bist test */ -- cgit v1.2.3 From 981cc23e741a641ca92c37c7a3df180ced702118 Mon Sep 17 00:00:00 2001 From: Luo Jiaxing Date: Tue, 1 Sep 2020 19:13:08 +0800 Subject: scsi: hisi_sas: Add BIST support for fixed code pattern Through the new debugfs interface the user can select fixed code patterns. Add two new interfaces fixed_code and fixed_code1. Link: https://lore.kernel.org/r/1598958790-232272-7-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas.h | 22 +++++++++++++++++ drivers/scsi/hisi_sas/hisi_sas_main.c | 25 ++++++++------------ drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 43 +++++++++++++++++++++------------- 3 files changed, 59 insertions(+), 31 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index ce6a7d212afe..c617ac8d8315 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -285,6 +285,27 @@ enum hisi_sas_debugfs_bist_ffe_cfg { FFE_CFG_MAX }; +enum hisi_sas_debugfs_bist_fixed_code { + FIXED_CODE, + FIXED_CODE_1, + FIXED_CODE_MAX +}; + +enum { + HISI_SAS_BIST_CODE_MODE_PRBS7, + HISI_SAS_BIST_CODE_MODE_PRBS23, + HISI_SAS_BIST_CODE_MODE_PRBS31, + HISI_SAS_BIST_CODE_MODE_JTPAT, + HISI_SAS_BIST_CODE_MODE_CJTPAT, + HISI_SAS_BIST_CODE_MODE_SCRAMBED_0, + HISI_SAS_BIST_CODE_MODE_TRAIN, + HISI_SAS_BIST_CODE_MODE_TRAIN_DONE, + HISI_SAS_BIST_CODE_MODE_HFTP, + HISI_SAS_BIST_CODE_MODE_MFTP, + HISI_SAS_BIST_CODE_MODE_LFTP, + HISI_SAS_BIST_CODE_MODE_FIXED_DATA, +}; + struct hisi_sas_hw { int (*hw_init)(struct hisi_hba *hisi_hba); void (*setup_itct)(struct hisi_hba *hisi_hba, @@ -453,6 +474,7 @@ struct hisi_hba { u32 debugfs_bist_cnt; int debugfs_bist_enable; u32 debugfs_bist_ffe[HISI_SAS_MAX_PHYS][FFE_CFG_MAX]; + u32 debugfs_bist_fixed_code[FIXED_CODE_MAX]; /* debugfs memories */ /* Put Global AXI and RAS Register into register array */ diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 6cd9b25fbbe7..6d1e42389cd6 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -3334,21 +3334,6 @@ enum { HISI_SAS_BIST_LOOPBACK_MODE_REMOTE, }; -enum { - HISI_SAS_BIST_CODE_MODE_PRBS7 = 0, - HISI_SAS_BIST_CODE_MODE_PRBS23, - HISI_SAS_BIST_CODE_MODE_PRBS31, - HISI_SAS_BIST_CODE_MODE_JTPAT, - HISI_SAS_BIST_CODE_MODE_CJTPAT, - HISI_SAS_BIST_CODE_MODE_SCRAMBED_0, - HISI_SAS_BIST_CODE_MODE_TRAIN, - HISI_SAS_BIST_CODE_MODE_TRAIN_DONE, - HISI_SAS_BIST_CODE_MODE_HFTP, - HISI_SAS_BIST_CODE_MODE_MFTP, - HISI_SAS_BIST_CODE_MODE_LFTP, - HISI_SAS_BIST_CODE_MODE_FIXED_DATA, -}; - static const struct { int value; char *name; @@ -3966,6 +3951,16 @@ static void hisi_sas_debugfs_bist_init(struct hisi_hba *hisi_hba) hisi_hba->debugfs_bist_dentry, hisi_hba, &hisi_sas_debugfs_bist_code_mode_ops); + debugfs_create_file("fixed_code", 0600, + hisi_hba->debugfs_bist_dentry, + &hisi_hba->debugfs_bist_fixed_code[0], + &hisi_sas_debugfs_ops); + + debugfs_create_file("fixed_code_1", 0600, + hisi_hba->debugfs_bist_dentry, + &hisi_hba->debugfs_bist_fixed_code[1], + &hisi_sas_debugfs_ops); + debugfs_create_file("phy_id", 0600, hisi_hba->debugfs_bist_dentry, hisi_hba, &hisi_sas_debugfs_bist_phy_ops); diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index f5d566832d6c..8522f693033f 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -3033,14 +3033,16 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) u32 *ffe = hisi_hba->debugfs_bist_ffe[phy_no]; u32 code_mode = hisi_hba->debugfs_bist_code_mode; u32 path_mode = hisi_hba->debugfs_bist_mode; + u32 *fix_code = &hisi_hba->debugfs_bist_fixed_code[0]; struct device *dev = hisi_hba->dev; - dev_info(dev, "BIST info:phy%d link_rate=%d code_mode=%d path_mode=%d ffe={0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x}\n", + dev_info(dev, "BIST info:phy%d link_rate=%d code_mode=%d path_mode=%d ffe={0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x, 0x%x} fixed_code={0x%x, 0x%x}\n", phy_no, linkrate, code_mode, path_mode, ffe[FFE_SAS_1_5_GBPS], ffe[FFE_SAS_3_0_GBPS], ffe[FFE_SAS_6_0_GBPS], ffe[FFE_SAS_12_0_GBPS], ffe[FFE_SATA_1_5_GBPS], ffe[FFE_SATA_3_0_GBPS], - ffe[FFE_SATA_6_0_GBPS]); + ffe[FFE_SATA_6_0_GBPS], fix_code[FIXED_CODE], + fix_code[FIXED_CODE_1]); mode_tmp = path_mode ? 2 : 1; if (enable) { /* some preparations before bist test */ @@ -3057,28 +3059,37 @@ static int debugfs_set_bist_v3_hw(struct hisi_hba *hisi_hba, bool enable) /* set code mode of bit test */ reg_val = hisi_sas_phy_read32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL); - reg_val &= ~(CFG_BIST_MODE_SEL_MSK | - CFG_LOOP_TEST_MODE_MSK | - CFG_RX_BIST_EN_MSK | - CFG_TX_BIST_EN_MSK | - CFG_BIST_TEST_MSK); + reg_val &= ~(CFG_BIST_MODE_SEL_MSK | CFG_LOOP_TEST_MODE_MSK | + CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK | + CFG_BIST_TEST_MSK); reg_val |= ((code_mode << CFG_BIST_MODE_SEL_OFF) | (mode_tmp << CFG_LOOP_TEST_MODE_OFF) | CFG_BIST_TEST_MSK); - hisi_sas_phy_write32(hisi_hba, phy_no, - SAS_PHY_BIST_CTRL, reg_val); + hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL, + reg_val); /* set the bist init value */ - hisi_sas_phy_write32(hisi_hba, phy_no, - SAS_PHY_BIST_CODE, - SAS_PHY_BIST_CODE_INIT); - hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CODE1, - SAS_PHY_BIST_CODE1_INIT); + if (code_mode == HISI_SAS_BIST_CODE_MODE_FIXED_DATA) { + reg_val = hisi_hba->debugfs_bist_fixed_code[0]; + hisi_sas_phy_write32(hisi_hba, phy_no, + SAS_PHY_BIST_CODE, reg_val); + + reg_val = hisi_hba->debugfs_bist_fixed_code[1]; + hisi_sas_phy_write32(hisi_hba, phy_no, + SAS_PHY_BIST_CODE1, reg_val); + } else { + hisi_sas_phy_write32(hisi_hba, phy_no, + SAS_PHY_BIST_CODE, + SAS_PHY_BIST_CODE_INIT); + hisi_sas_phy_write32(hisi_hba, phy_no, + SAS_PHY_BIST_CODE1, + SAS_PHY_BIST_CODE1_INIT); + } mdelay(100); reg_val |= (CFG_RX_BIST_EN_MSK | CFG_TX_BIST_EN_MSK); - hisi_sas_phy_write32(hisi_hba, phy_no, - SAS_PHY_BIST_CTRL, reg_val); + hisi_sas_phy_write32(hisi_hba, phy_no, SAS_PHY_BIST_CTRL, + reg_val); /* clear error bit */ mdelay(100); -- cgit v1.2.3 From b601577df68af896e563ca62ca07d8681912eabc Mon Sep 17 00:00:00 2001 From: Xiang Chen Date: Tue, 1 Sep 2020 19:13:09 +0800 Subject: scsi: hisi_sas: Add missing newlines Newline is missing from some printk() statements. Add them. Link: https://lore.kernel.org/r/1598958790-232272-8-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_main.c | 2 +- drivers/scsi/hisi_sas/hisi_sas_v1_hw.c | 24 ++++++++++++------------ drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 2 +- 4 files changed, 15 insertions(+), 15 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index 6d1e42389cd6..f5ad8e662b4b 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -335,7 +335,7 @@ static int hisi_sas_dma_map(struct hisi_hba *hisi_hba, } if (*n_elem > HISI_SAS_SGE_PAGE_CNT) { - dev_err(dev, "task prep: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT", + dev_err(dev, "task prep: n_elem(%d) > HISI_SAS_SGE_PAGE_CNT\n", *n_elem); rc = -EINVAL; goto err_out_dma_unmap; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c index 7922a9bb1b28..45e866cb9164 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v1_hw.c @@ -752,7 +752,7 @@ static int hw_init_v1_hw(struct hisi_hba *hisi_hba) rc = reset_hw_v1_hw(hisi_hba); if (rc) { - dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc); + dev_err(dev, "hisi_sas_reset_hw failed, rc=%d\n", rc); return rc; } @@ -1166,7 +1166,7 @@ static void slot_err_v1_hw(struct hisi_hba *hisi_hba, case SAS_PROTOCOL_STP: case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: { - dev_err(dev, "slot err: SATA/STP not supported"); + dev_err(dev, "slot err: SATA/STP not supported\n"); } break; default: @@ -1218,35 +1218,35 @@ static void slot_complete_v1_hw(struct hisi_hba *hisi_hba, u32 info_reg = hisi_sas_read32(hisi_hba, HGC_INVLD_DQE_INFO); if (info_reg & HGC_INVLD_DQE_INFO_DQ_MSK) - dev_err(dev, "slot complete: [%d:%d] has dq IPTT err", + dev_err(dev, "slot complete: [%d:%d] has dq IPTT err\n", slot->cmplt_queue, slot->cmplt_queue_slot); if (info_reg & HGC_INVLD_DQE_INFO_TYPE_MSK) - dev_err(dev, "slot complete: [%d:%d] has dq type err", + dev_err(dev, "slot complete: [%d:%d] has dq type err\n", slot->cmplt_queue, slot->cmplt_queue_slot); if (info_reg & HGC_INVLD_DQE_INFO_FORCE_MSK) - dev_err(dev, "slot complete: [%d:%d] has dq force phy err", + dev_err(dev, "slot complete: [%d:%d] has dq force phy err\n", slot->cmplt_queue, slot->cmplt_queue_slot); if (info_reg & HGC_INVLD_DQE_INFO_PHY_MSK) - dev_err(dev, "slot complete: [%d:%d] has dq phy id err", + dev_err(dev, "slot complete: [%d:%d] has dq phy id err\n", slot->cmplt_queue, slot->cmplt_queue_slot); if (info_reg & HGC_INVLD_DQE_INFO_ABORT_MSK) - dev_err(dev, "slot complete: [%d:%d] has dq abort flag err", + dev_err(dev, "slot complete: [%d:%d] has dq abort flag err\n", slot->cmplt_queue, slot->cmplt_queue_slot); if (info_reg & HGC_INVLD_DQE_INFO_IPTT_OF_MSK) - dev_err(dev, "slot complete: [%d:%d] has dq IPTT or ICT err", + dev_err(dev, "slot complete: [%d:%d] has dq IPTT or ICT err\n", slot->cmplt_queue, slot->cmplt_queue_slot); if (info_reg & HGC_INVLD_DQE_INFO_SSP_ERR_MSK) - dev_err(dev, "slot complete: [%d:%d] has dq SSP frame type err", + dev_err(dev, "slot complete: [%d:%d] has dq SSP frame type err\n", slot->cmplt_queue, slot->cmplt_queue_slot); if (info_reg & HGC_INVLD_DQE_INFO_OFL_MSK) - dev_err(dev, "slot complete: [%d:%d] has dq order frame len err", + dev_err(dev, "slot complete: [%d:%d] has dq order frame len err\n", slot->cmplt_queue, slot->cmplt_queue_slot); ts->stat = SAS_OPEN_REJECT; @@ -1294,7 +1294,7 @@ static void slot_complete_v1_hw(struct hisi_hba *hisi_hba, case SAS_PROTOCOL_SATA: case SAS_PROTOCOL_STP: case SAS_PROTOCOL_SATA | SAS_PROTOCOL_STP: - dev_err(dev, "slot complete: SATA/STP not supported"); + dev_err(dev, "slot complete: SATA/STP not supported\n"); break; default: @@ -1417,7 +1417,7 @@ static irqreturn_t int_bcast_v1_hw(int irq, void *p) irq_value = hisi_sas_phy_read32(hisi_hba, phy_no, CHL_INT2); if (!(irq_value & CHL_INT2_SL_RX_BC_ACK_MSK)) { - dev_err(dev, "bcast: irq_value = %x not set enable bit", + dev_err(dev, "bcast: irq_value = %x not set enable bit\n", irq_value); res = IRQ_NONE; goto end; diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 043f47ba3600..68d07a4f8422 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -1382,7 +1382,7 @@ static int hw_init_v2_hw(struct hisi_hba *hisi_hba) rc = reset_hw_v2_hw(hisi_hba); if (rc) { - dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc); + dev_err(dev, "hisi_sas_reset_hw failed, rc=%d\n", rc); return rc; } diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 8522f693033f..397846388e85 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -909,7 +909,7 @@ static int hw_init_v3_hw(struct hisi_hba *hisi_hba) rc = reset_hw_v3_hw(hisi_hba); if (rc) { - dev_err(dev, "hisi_sas_reset_hw failed, rc=%d", rc); + dev_err(dev, "hisi_sas_reset_hw failed, rc=%d\n", rc); return rc; } -- cgit v1.2.3 From 26f84f9bc3ba04dd415a93e4ca16eda896cf94ea Mon Sep 17 00:00:00 2001 From: Luo Jiaxing Date: Tue, 1 Sep 2020 19:13:10 +0800 Subject: scsi: hisi_sas: Code style cleanup Remove extra blank lines and add spaces around operators. Link: https://lore.kernel.org/r/1598958790-232272-9-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_main.c | 1 - drivers/scsi/hisi_sas/hisi_sas_v2_hw.c | 2 +- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 4 +--- 3 files changed, 2 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index f5ad8e662b4b..f18452942508 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -1430,7 +1430,6 @@ static void hisi_sas_rescan_topology(struct hisi_hba *hisi_hba, u32 state) } else { hisi_sas_phy_down(hisi_hba, phy_no, 0); } - } } diff --git a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c index 68d07a4f8422..b57177b52fac 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v2_hw.c @@ -1202,7 +1202,7 @@ static void init_reg_v2_hw(struct hisi_hba *hisi_hba) hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK3, 0x7ffe20fe); hisi_sas_write32(hisi_hba, SAS_ECC_INTR_MSK, 0xfff00c30); for (i = 0; i < hisi_hba->queue_count; i++) - hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK+0x4*i, 0); + hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0); hisi_sas_write32(hisi_hba, AXI_AHB_CLK_CFG, 1); hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1); diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 397846388e85..87bda037303f 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -596,7 +596,7 @@ static void init_reg_v3_hw(struct hisi_hba *hisi_hba) hisi_sas_write32(hisi_hba, AWQOS_AWCACHE_CFG, 0xf0f0); hisi_sas_write32(hisi_hba, ARQOS_ARCACHE_CFG, 0xf0f0); for (i = 0; i < hisi_hba->queue_count; i++) - hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK+0x4*i, 0); + hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0); hisi_sas_write32(hisi_hba, HYPER_STREAM_ID_EN_CFG, 1); @@ -1350,7 +1350,6 @@ static void prep_smp_v3_hw(struct hisi_hba *hisi_hba, hdr->cmd_table_addr = cpu_to_le64(req_dma_addr); hdr->sts_buffer_addr = cpu_to_le64(hisi_sas_status_buf_addr_dma(slot)); - } static void prep_ata_v3_hw(struct hisi_hba *hisi_hba, @@ -1456,7 +1455,6 @@ static void prep_abort_v3_hw(struct hisi_hba *hisi_hba, /* dw7 */ hdr->dw7 = cpu_to_le32(tag_to_abort << CMD_HDR_ABORT_IPTT_OFF); hdr->transfer_tags = cpu_to_le32(slot->idx); - } static irqreturn_t phy_up_v3_hw(int phy_no, struct hisi_hba *hisi_hba) -- cgit v1.2.3 From 5d929371b71b05a85d07dbc3333be7d129be6338 Mon Sep 17 00:00:00 2001 From: Nilesh Javali Date: Wed, 2 Sep 2020 00:34:30 -0700 Subject: scsi: MAINTAINERS: Update Marvell owned driver maintainers Update Marvell owned driver maintainers and add Marvell Upstream email alias to the maintainers list. Link: https://lore.kernel.org/r/20200902073430.11787-1-njavali@marvell.com Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- MAINTAINERS | 20 +++++++++++++++----- 1 file changed, 15 insertions(+), 5 deletions(-) diff --git a/MAINTAINERS b/MAINTAINERS index 90ef87b64f31..1ef851db33f5 100644 --- a/MAINTAINERS +++ b/MAINTAINERS @@ -3506,13 +3506,17 @@ F: drivers/net/ethernet/broadcom/bnx2.* F: drivers/net/ethernet/broadcom/bnx2_* BROADCOM BNX2FC 10 GIGABIT FCOE DRIVER -M: QLogic-Storage-Upstream@qlogic.com +M: Saurav Kashyap +M: Javed Hasan +M: GR-QLogic-Storage-Upstream@marvell.com L: linux-scsi@vger.kernel.org S: Supported F: drivers/scsi/bnx2fc/ BROADCOM BNX2I 1/10 GIGABIT iSCSI DRIVER -M: QLogic-Storage-Upstream@qlogic.com +M: Nilesh Javali +M: Manish Rangankar +M: GR-QLogic-Storage-Upstream@marvell.com L: linux-scsi@vger.kernel.org S: Supported F: drivers/scsi/bnx2i/ @@ -14161,13 +14165,17 @@ S: Supported F: drivers/infiniband/hw/qib/ QLOGIC QL41xxx FCOE DRIVER -M: QLogic-Storage-Upstream@cavium.com +M: Saurav Kashyap +M: Javed Hasan +M: GR-QLogic-Storage-Upstream@marvell.com L: linux-scsi@vger.kernel.org S: Supported F: drivers/scsi/qedf/ QLOGIC QL41xxx ISCSI DRIVER -M: QLogic-Storage-Upstream@cavium.com +M: Nilesh Javali +M: Manish Rangankar +M: GR-QLogic-Storage-Upstream@marvell.com L: linux-scsi@vger.kernel.org S: Supported F: drivers/scsi/qedi/ @@ -14211,7 +14219,9 @@ F: Documentation/networking/device_drivers/ethernet/qlogic/LICENSE.qla3xxx F: drivers/net/ethernet/qlogic/qla3xxx.* QLOGIC QLA4XXX iSCSI DRIVER -M: QLogic-Storage-Upstream@qlogic.com +M: Nilesh Javali +M: Manish Rangankar +M: GR-QLogic-Storage-Upstream@marvell.com L: linux-scsi@vger.kernel.org S: Supported F: Documentation/scsi/LICENSE.qla4xxx -- cgit v1.2.3 From 979e0dc3457cc95e48920ff5ca901a5821ef57d8 Mon Sep 17 00:00:00 2001 From: John Pittman Date: Wed, 2 Sep 2020 17:14:33 -0400 Subject: scsi: scsi_debug: Adjust num_parts to create equally sized partitions Currently when using the num_parts parameter, partitions are aligned and the end sector is one prior to the next start. This creates different sized partitions. Create instead equally sized partitions by trimming the end of each partition to the size of the smallest partition. This aligns better with what one would expect from automatically created partitions and can be helpful with testing things such as raid which often expect legs of the same size. Minimal space is lost as the initial partition starting size is calculated by dividing num_sectors by sdebug_num_parts. Link: https://lore.kernel.org/r/20200902211434.9979-2-jpittman@redhat.com Acked-by: Douglas Gilbert Signed-off-by: John Pittman Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_debug.c | 10 +++++++--- 1 file changed, 7 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index c5829493dd35..87bbd0967bd8 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -5265,7 +5265,7 @@ static int scsi_debug_host_reset(struct scsi_cmnd *SCpnt) static void sdebug_build_parts(unsigned char *ramp, unsigned long store_size) { struct msdos_partition *pp; - int starts[SDEBUG_MAX_PARTS + 2]; + int starts[SDEBUG_MAX_PARTS + 2], max_part_secs; int sectors_per_part, num_sectors, k; int heads_by_sects, start_sec, end_sec; @@ -5281,9 +5281,13 @@ static void sdebug_build_parts(unsigned char *ramp, unsigned long store_size) / sdebug_num_parts; heads_by_sects = sdebug_heads * sdebug_sectors_per; starts[0] = sdebug_sectors_per; - for (k = 1; k < sdebug_num_parts; ++k) + max_part_secs = sectors_per_part; + for (k = 1; k < sdebug_num_parts; ++k) { starts[k] = ((k * sectors_per_part) / heads_by_sects) * heads_by_sects; + if (starts[k] - starts[k - 1] < max_part_secs) + max_part_secs = starts[k] - starts[k - 1]; + } starts[sdebug_num_parts] = num_sectors; starts[sdebug_num_parts + 1] = 0; @@ -5292,7 +5296,7 @@ static void sdebug_build_parts(unsigned char *ramp, unsigned long store_size) pp = (struct msdos_partition *)(ramp + 0x1be); for (k = 0; starts[k + 1]; ++k, ++pp) { start_sec = starts[k]; - end_sec = starts[k + 1] - 1; + end_sec = starts[k] + max_part_secs - 1; pp->boot_ind = 0; pp->cyl = start_sec / heads_by_sects; -- cgit v1.2.3 From 8c6572356646f700e1679d8f7eb2ab3a4eab678c Mon Sep 17 00:00:00 2001 From: John Pittman Date: Wed, 2 Sep 2020 17:14:34 -0400 Subject: scsi: scsi_debug: Make sdebug_build_parts() respect virtual_gb If virtual_gb is passed while using num_parts, when creating the partitions, virtual_gb is not respected. Set num_sectors using get_sdebug_capacity() to pull virtual_gb if set. Link: https://lore.kernel.org/r/20200902211434.9979-3-jpittman@redhat.com Acked-by: Douglas Gilbert Signed-off-by: John Pittman Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_debug.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/scsi_debug.c b/drivers/scsi/scsi_debug.c index 87bbd0967bd8..0a98bdbd5ed4 100644 --- a/drivers/scsi/scsi_debug.c +++ b/drivers/scsi/scsi_debug.c @@ -5276,7 +5276,7 @@ static void sdebug_build_parts(unsigned char *ramp, unsigned long store_size) sdebug_num_parts = SDEBUG_MAX_PARTS; pr_warn("reducing partitions to %d\n", SDEBUG_MAX_PARTS); } - num_sectors = (int)sdebug_store_sectors; + num_sectors = (int)get_sdebug_capacity(); sectors_per_part = (num_sectors - sdebug_sectors_per) / sdebug_num_parts; heads_by_sects = sdebug_heads * sdebug_sectors_per; -- cgit v1.2.3 From 499f7a9660926c9176563bf8da22abf585b65e65 Mon Sep 17 00:00:00 2001 From: "Bao D. Nguyen" Date: Fri, 28 Aug 2020 18:05:13 -0700 Subject: scsi: ufshcd: Allow specifying an Auto-Hibernate Timer value of zero Setting the Auto-Hibernate Timer to zero is a valid setting which indicates the Auto-Hibernate feature being disabled. Correctly support this setting. In addition, when the timer value is queried from sysfs, read from the host controller's register and return that value instead of using the RAM value. Link: https://lore.kernel.org/r/b141cfcd7998b8933635828b56fbb64f8ad4d175.1598661071.git.nguyenb@codeaurora.org Acked-by: Stanley Chu Signed-off-by: Bao D. Nguyen Signed-off-by: Asutosh Das Signed-off-by: Can Guo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-sysfs.c | 9 ++++++++- drivers/scsi/ufs/ufshcd.c | 2 +- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufs-sysfs.c b/drivers/scsi/ufs/ufs-sysfs.c index 02d379f00727..bdcd27faa054 100644 --- a/drivers/scsi/ufs/ufs-sysfs.c +++ b/drivers/scsi/ufs/ufs-sysfs.c @@ -146,12 +146,19 @@ static u32 ufshcd_us_to_ahit(unsigned int timer) static ssize_t auto_hibern8_show(struct device *dev, struct device_attribute *attr, char *buf) { + u32 ahit; struct ufs_hba *hba = dev_get_drvdata(dev); if (!ufshcd_is_auto_hibern8_supported(hba)) return -EOPNOTSUPP; - return snprintf(buf, PAGE_SIZE, "%d\n", ufshcd_ahit_to_us(hba->ahit)); + pm_runtime_get_sync(hba->dev); + ufshcd_hold(hba, false); + ahit = ufshcd_readl(hba, REG_AUTO_HIBERNATE_IDLE_TIMER); + ufshcd_release(hba); + pm_runtime_put_sync(hba->dev); + + return scnprintf(buf, PAGE_SIZE, "%d\n", ufshcd_ahit_to_us(ahit)); } static ssize_t auto_hibern8_store(struct device *dev, diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 05716f62febe..ef210f8405f3 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -3980,7 +3980,7 @@ void ufshcd_auto_hibern8_enable(struct ufs_hba *hba) { unsigned long flags; - if (!ufshcd_is_auto_hibern8_supported(hba) || !hba->ahit) + if (!ufshcd_is_auto_hibern8_supported(hba)) return; spin_lock_irqsave(hba->host->host_lock, flags); -- cgit v1.2.3 From 802c60e3684e05633158055b862a99e0590f6327 Mon Sep 17 00:00:00 2001 From: Tyrel Datwyler Date: Fri, 4 Sep 2020 18:29:35 -0500 Subject: scsi: ibmvfc: Use compiler attribute defines instead of __attribute__() Update ibmvfc.h structs to use the preferred __packed and __aligned() attribute macros defined in include/linux/compiler_attributes.h in place of __attribute__(). Link: https://lore.kernel.org/r/20200904232936.840193-1-tyreld@linux.ibm.com Signed-off-by: Tyrel Datwyler Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi/ibmvfc.h | 56 +++++++++++++++++++++--------------------- 1 file changed, 28 insertions(+), 28 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index 907889f1fa9d..6da23666f5be 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -133,16 +133,16 @@ struct ibmvfc_mad_common { __be16 status; __be16 length; __be64 tag; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_npiv_login_mad { struct ibmvfc_mad_common common; struct srp_direct_buf buffer; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_npiv_logout_mad { struct ibmvfc_mad_common common; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); #define IBMVFC_MAX_NAME 256 @@ -168,7 +168,7 @@ struct ibmvfc_npiv_login { u8 device_name[IBMVFC_MAX_NAME]; u8 drc_name[IBMVFC_MAX_NAME]; __be64 reserved2[2]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_common_svc_parms { __be16 fcph_version; @@ -177,7 +177,7 @@ struct ibmvfc_common_svc_parms { __be16 bb_rcv_sz; /* upper nibble is BB_SC_N */ __be32 ratov; __be32 edtov; -}__attribute__((packed, aligned (4))); +} __packed __aligned(4); struct ibmvfc_service_parms { struct ibmvfc_common_svc_parms common; @@ -192,7 +192,7 @@ struct ibmvfc_service_parms { __be32 ext_len; __be32 reserved[30]; __be32 clk_sync_qos[2]; -}__attribute__((packed, aligned (4))); +} __packed __aligned(4); struct ibmvfc_npiv_login_resp { __be32 version; @@ -217,12 +217,12 @@ struct ibmvfc_npiv_login_resp { u8 drc_name[IBMVFC_MAX_NAME]; struct ibmvfc_service_parms service_parms; __be64 reserved2; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); union ibmvfc_npiv_login_data { struct ibmvfc_npiv_login login; struct ibmvfc_npiv_login_resp resp; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_discover_targets_buf { __be32 scsi_id[1]; @@ -239,7 +239,7 @@ struct ibmvfc_discover_targets { __be32 num_avail; __be32 num_written; __be64 reserved[2]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); enum ibmvfc_fc_reason { IBMVFC_INVALID_ELS_CMD_CODE = 0x01, @@ -283,7 +283,7 @@ struct ibmvfc_port_login { struct ibmvfc_service_parms service_parms; struct ibmvfc_service_parms service_parms_change; __be64 reserved3[2]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_prli_svc_parms { u8 type; @@ -303,7 +303,7 @@ struct ibmvfc_prli_svc_parms { #define IBMVFC_PRLI_TARGET_FUNC 0x00000010 #define IBMVFC_PRLI_READ_FCP_XFER_RDY_DISABLED 0x00000002 #define IBMVFC_PRLI_WR_FCP_XFER_RDY_DISABLED 0x00000001 -}__attribute__((packed, aligned (4))); +} __packed __aligned(4); struct ibmvfc_process_login { struct ibmvfc_mad_common common; @@ -314,7 +314,7 @@ struct ibmvfc_process_login { __be16 error; /* also fc_reason */ __be32 reserved2; __be64 reserved3[2]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_query_tgt { struct ibmvfc_mad_common common; @@ -325,13 +325,13 @@ struct ibmvfc_query_tgt { __be16 fc_explain; __be16 fc_type; __be64 reserved[2]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_implicit_logout { struct ibmvfc_mad_common common; __be64 old_scsi_id; __be64 reserved[2]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_tmf { struct ibmvfc_mad_common common; @@ -348,7 +348,7 @@ struct ibmvfc_tmf { __be32 my_cancel_key; __be32 pad; __be64 reserved[2]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); enum ibmvfc_fcp_rsp_info_codes { RSP_NO_FAILURE = 0x00, @@ -361,7 +361,7 @@ struct ibmvfc_fcp_rsp_info { u8 reserved[3]; u8 rsp_code; u8 reserved2[4]; -}__attribute__((packed, aligned (2))); +} __packed __aligned(2); enum ibmvfc_fcp_rsp_flags { FCP_BIDI_RSP = 0x80, @@ -377,7 +377,7 @@ enum ibmvfc_fcp_rsp_flags { union ibmvfc_fcp_rsp_data { struct ibmvfc_fcp_rsp_info info; u8 sense[SCSI_SENSE_BUFFERSIZE + sizeof(struct ibmvfc_fcp_rsp_info)]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_fcp_rsp { __be64 reserved; @@ -388,7 +388,7 @@ struct ibmvfc_fcp_rsp { __be32 fcp_sense_len; __be32 fcp_rsp_len; union ibmvfc_fcp_rsp_data data; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); enum ibmvfc_cmd_flags { IBMVFC_SCATTERLIST = 0x0001, @@ -422,7 +422,7 @@ struct ibmvfc_fcp_cmd_iu { #define IBMVFC_WRDATA 0x01 u8 cdb[IBMVFC_MAX_CDB_LEN]; __be32 xfer_len; -}__attribute__((packed, aligned (4))); +} __packed __aligned(4); struct ibmvfc_cmd { __be64 task_tag; @@ -446,7 +446,7 @@ struct ibmvfc_cmd { __be64 reserved3[2]; struct ibmvfc_fcp_cmd_iu iu; struct ibmvfc_fcp_rsp rsp; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_passthru_fc_iu { __be32 payload[7]; @@ -473,18 +473,18 @@ struct ibmvfc_passthru_iu { __be64 scsi_id; __be64 tag; __be64 reserved2[2]; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_passthru_mad { struct ibmvfc_mad_common common; struct srp_direct_buf cmd_ioba; struct ibmvfc_passthru_iu iu; struct ibmvfc_passthru_fc_iu fc_iu; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_trace_start_entry { u32 xfer_len; -}__attribute__((packed)); +} __packed; struct ibmvfc_trace_end_entry { u16 status; @@ -493,7 +493,7 @@ struct ibmvfc_trace_end_entry { u8 rsp_code; u8 scsi_status; u8 reserved; -}__attribute__((packed)); +} __packed; struct ibmvfc_trace_entry { struct ibmvfc_event *evt; @@ -510,7 +510,7 @@ struct ibmvfc_trace_entry { struct ibmvfc_trace_start_entry start; struct ibmvfc_trace_end_entry end; } u; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); enum ibmvfc_crq_formats { IBMVFC_CMD_FORMAT = 0x01, @@ -545,7 +545,7 @@ struct ibmvfc_crq { volatile u8 format; u8 reserved[6]; volatile __be64 ioba; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_crq_queue { struct ibmvfc_crq *msgs; @@ -570,7 +570,7 @@ struct ibmvfc_async_crq { volatile __be64 wwpn; volatile __be64 node_name; __be64 reserved; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); struct ibmvfc_async_crq_queue { struct ibmvfc_async_crq *msgs; @@ -590,7 +590,7 @@ union ibmvfc_iu { struct ibmvfc_tmf tmf; struct ibmvfc_cmd cmd; struct ibmvfc_passthru_mad passthru; -}__attribute__((packed, aligned (8))); +} __packed __aligned(8); enum ibmvfc_target_action { IBMVFC_TGT_ACTION_NONE = 0, -- cgit v1.2.3 From df4d7329b2558008c64e573adb79d3fa3d5fc5c4 Mon Sep 17 00:00:00 2001 From: Tyrel Datwyler Date: Fri, 4 Sep 2020 18:29:36 -0500 Subject: scsi: ibmvfc: Interface updates for future FPIN and MQ support VIOS partitions with SLI-4 enabled Emulex adapters will be capable of driving I/O in parallel through mulitple work queues or channels, and with new hypervisor firmware that supports multiple interrupt sources an ibmvfc NPIV single initiator can be modified to exploit end-to-end channelization in a PowerVM environment. VIOS hosts will also be able to expose fabric perfromance impact notifications (FPIN) via a new asynchronous event to ibmvfc clients that advertise support via IBMVFC_CAN_HANDLE_FPIN in their capabilities flag during NPIV_LOGIN. This patch introduces three new Management Datagrams (MADs) for channelization support negotiation as well as the FPIN asynchronous event and FPIN status flags. Follow up work is required to plumb the ibmvfc client driver to use these new interfaces. Link: https://lore.kernel.org/r/20200904232936.840193-2-tyreld@linux.ibm.com Signed-off-by: Tyrel Datwyler Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi/ibmvfc.h | 66 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 65 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index 6da23666f5be..e6e1c255a79c 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -124,6 +124,9 @@ enum ibmvfc_mad_types { IBMVFC_PASSTHRU = 0x0200, IBMVFC_TMF_MAD = 0x0100, IBMVFC_NPIV_LOGOUT = 0x0800, + IBMVFC_CHANNEL_ENQUIRY = 0x1000, + IBMVFC_CHANNEL_SETUP = 0x2000, + IBMVFC_CONNECTION_INFO = 0x4000, }; struct ibmvfc_mad_common { @@ -162,6 +165,8 @@ struct ibmvfc_npiv_login { __be32 max_cmds; __be64 capabilities; #define IBMVFC_CAN_MIGRATE 0x01 +#define IBMVFC_CAN_USE_CHANNELS 0x02 +#define IBMVFC_CAN_HANDLE_FPIN 0x04 __be64 node_name; struct srp_direct_buf async; u8 partition_name[IBMVFC_MAX_NAME]; @@ -204,6 +209,7 @@ struct ibmvfc_npiv_login_resp { __be64 capabilities; #define IBMVFC_CAN_FLUSH_ON_HALT 0x08 #define IBMVFC_CAN_SUPPRESS_ABTS 0x10 +#define IBMVFC_CAN_SUPPORT_CHANNELS 0x20 __be32 max_cmds; __be32 scsi_id_sz; __be64 max_dma_len; @@ -482,6 +488,52 @@ struct ibmvfc_passthru_mad { struct ibmvfc_passthru_fc_iu fc_iu; } __packed __aligned(8); +struct ibmvfc_channel_enquiry { + struct ibmvfc_mad_common common; + __be32 flags; +#define IBMVFC_NO_CHANNELS_TO_CRQ_SUPPORT 0x01 +#define IBMVFC_SUPPORT_VARIABLE_SUBQ_MSG 0x02 +#define IBMVFC_NO_N_TO_M_CHANNELS_SUPPORT 0x04 + __be32 num_scsi_subq_channels; + __be32 num_nvmeof_subq_channels; + __be32 num_scsi_vas_channels; + __be32 num_nvmeof_vas_channels; +} __packed __aligned(8); + +struct ibmvfc_channel_setup_mad { + struct ibmvfc_mad_common common; + struct srp_direct_buf buffer; +} __packed __aligned(8); + +#define IBMVFC_MAX_CHANNELS 502 + +struct ibmvfc_channel_setup { + __be32 flags; +#define IBMVFC_CANCEL_CHANNELS 0x01 +#define IBMVFC_USE_BUFFER 0x02 +#define IBMVFC_CHANNELS_CANCELED 0x04 + __be32 reserved; + __be32 num_scsi_subq_channels; + __be32 num_nvmeof_subq_channels; + __be32 num_scsi_vas_channels; + __be32 num_nvmeof_vas_channels; + struct srp_direct_buf buffer; + __be64 reserved2[5]; + __be64 channel_handles[IBMVFC_MAX_CHANNELS]; +} __packed __aligned(8); + +struct ibmvfc_connection_info { + struct ibmvfc_mad_common common; + __be64 information_bits; +#define IBMVFC_NO_FC_IO_CHANNEL 0x01 +#define IBMVFC_NO_PHYP_VAS 0x02 +#define IBMVFC_NO_PHYP_SUBQ 0x04 +#define IBMVFC_PHYP_DEPRECATED_SUBQ 0x08 +#define IBMVFC_PHYP_PRESERVED_SUBQ 0x10 +#define IBMVFC_PHYP_FULL_SUBQ 0x20 + __be64 reserved[16]; +} __packed __aligned(8); + struct ibmvfc_trace_start_entry { u32 xfer_len; } __packed; @@ -532,6 +584,7 @@ enum ibmvfc_async_event { IBMVFC_AE_HALT = 0x0400, IBMVFC_AE_RESUME = 0x0800, IBMVFC_AE_ADAPTER_FAILED = 0x1000, + IBMVFC_AE_FPIN = 0x2000, }; struct ibmvfc_async_desc { @@ -560,10 +613,18 @@ enum ibmvfc_ae_link_state { IBMVFC_AE_LS_LINK_DEAD = 0x08, }; +enum ibmvfc_ae_fpin_status { + IBMVFC_AE_FPIN_LINK_CONGESTED = 0x1, + IBMVFC_AE_FPIN_PORT_CONGESTED = 0x2, + IBMVFC_AE_FPIN_PORT_CLEARED = 0x3, + IBMVFC_AE_FPIN_PORT_DEGRADED = 0x4, +}; + struct ibmvfc_async_crq { volatile u8 valid; u8 link_state; - u8 pad[2]; + u8 fpin_status; + u8 pad; __be32 pad2; volatile __be64 event; volatile __be64 scsi_id; @@ -590,6 +651,9 @@ union ibmvfc_iu { struct ibmvfc_tmf tmf; struct ibmvfc_cmd cmd; struct ibmvfc_passthru_mad passthru; + struct ibmvfc_channel_enquiry channel_enquiry; + struct ibmvfc_channel_setup_mad channel_setup; + struct ibmvfc_connection_info connection_info; } __packed __aligned(8); enum ibmvfc_target_action { -- cgit v1.2.3 From 5476b7f5ae7bb1bc0d7c58a4a530f079950b9e1f Mon Sep 17 00:00:00 2001 From: "Nícolas F. R. A. Prado" Date: Sat, 5 Sep 2020 21:03:00 +0000 Subject: scsi: docs: Remove obsolete scsi typedef text from scsi_mid_low_api MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Commit 91ebc1facd77 ("scsi: core: remove Scsi_Cmnd typedef") removed the Scsi_cmnd typedef but it was still mentioned in a paragraph in the "SCSI mid_level - lower_level driver interface" documentation page. Remove this obsolete paragraph. Link: https://lore.kernel.org/r/20200905210211.2286172-1-nfraprado@protonmail.com Suggested-by: Randy Dunlap Suggested-by: Jonathan Corbet Acked-by: Randy Dunlap Signed-off-by: Nícolas F. R. A. Prado Signed-off-by: Martin K. Petersen --- Documentation/scsi/scsi_mid_low_api.rst | 6 ------ 1 file changed, 6 deletions(-) diff --git a/Documentation/scsi/scsi_mid_low_api.rst b/Documentation/scsi/scsi_mid_low_api.rst index 5358bc10689e..5bc17d012b25 100644 --- a/Documentation/scsi/scsi_mid_low_api.rst +++ b/Documentation/scsi/scsi_mid_low_api.rst @@ -271,12 +271,6 @@ Conventions First, Linus Torvalds's thoughts on C coding style can be found in the Documentation/process/coding-style.rst file. -Next, there is a movement to "outlaw" typedefs introducing synonyms for -struct tags. Both can be still found in the SCSI subsystem, but -the typedefs have been moved to a single file, scsi_typedefs.h to -make their future removal easier, for example: -"typedef struct scsi_cmnd Scsi_Cmnd;" - Also, most C99 enhancements are encouraged to the extent they are supported by the relevant gcc compilers. So C99 style structure and array initializers are encouraged where appropriate. Don't go too far, -- cgit v1.2.3 From 3f8ad0072bf73f3555cd04b7ee7ac09034d9ee18 Mon Sep 17 00:00:00 2001 From: Manish Rangankar Date: Tue, 8 Sep 2020 02:56:50 -0700 Subject: scsi: qedi: Use qed count from set_fp_int in msix allocation To avoid unnecessary vector allocation when the number of fast-path queues is less then available msix vectors, use return count from module qed->set_fp_int. Link: https://lore.kernel.org/r/20200908095657.26821-2-mrangankar@marvell.com Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi.h | 1 + drivers/scsi/qedi/qedi_main.c | 9 +++++++-- 2 files changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qedi/qedi.h b/drivers/scsi/qedi/qedi.h index 9498279ae80d..9c19ec9dc682 100644 --- a/drivers/scsi/qedi/qedi.h +++ b/drivers/scsi/qedi/qedi.h @@ -305,6 +305,7 @@ struct qedi_ctx { u32 max_sqes; u8 num_queues; u32 max_active_conns; + s32 msix_count; struct iscsi_cid_queue cid_que; struct qedi_endpoint **ep_tbl; diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index e42437ec23a8..c6842af1f21b 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -1356,7 +1356,7 @@ static int qedi_request_msix_irq(struct qedi_ctx *qedi) u16 idx; cpu = cpumask_first(cpu_online_mask); - for (i = 0; i < qedi->int_info.msix_cnt; i++) { + for (i = 0; i < qedi->msix_count; i++) { idx = i * qedi->dev_info.common.num_hwfns + qedi_ops->common->get_affin_hwfn_idx(qedi->cdev); @@ -1386,7 +1386,12 @@ static int qedi_setup_int(struct qedi_ctx *qedi) { int rc = 0; - rc = qedi_ops->common->set_fp_int(qedi->cdev, num_online_cpus()); + rc = qedi_ops->common->set_fp_int(qedi->cdev, qedi->num_queues); + if (rc < 0) + goto exit_setup_int; + + qedi->msix_count = rc; + rc = qedi_ops->common->get_fp_int(qedi->cdev, &qedi->int_info); if (rc) goto exit_setup_int; -- cgit v1.2.3 From 5c35e46465665e2864b2f76675306bf06e0b8703 Mon Sep 17 00:00:00 2001 From: Manish Rangankar Date: Tue, 8 Sep 2020 02:56:51 -0700 Subject: scsi: qedi: Skip firmware connection termination for PCI shutdown handler In boot from SAN scenario when qedi PCI shutdown handler is called with active iSCSI sessions, sometimes target takes too long time to respond to firmware connection termination request. Instead skip sending termination ramrod and progress with unload path. Link: https://lore.kernel.org/r/20200908095657.26821-3-mrangankar@marvell.com Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_iscsi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c index c14ac7882afa..f815845fc568 100644 --- a/drivers/scsi/qedi/qedi_iscsi.c +++ b/drivers/scsi/qedi/qedi_iscsi.c @@ -1069,6 +1069,10 @@ static void qedi_ep_disconnect(struct iscsi_endpoint *ep) wait_delay += qedi->pf_params.iscsi_pf_params.two_msl_timer; qedi_ep->state = EP_STATE_DISCONN_START; + + if (test_bit(QEDI_IN_SHUTDOWN, &qedi->flags)) + goto ep_release_conn; + ret = qedi_ops->destroy_conn(qedi->cdev, qedi_ep->handle, abrt_conn); if (ret) { QEDI_WARN(&qedi->dbg_ctx, -- cgit v1.2.3 From 28b35d17f9f8573d4646dd8df08917a4076a6b63 Mon Sep 17 00:00:00 2001 From: Nilesh Javali Date: Tue, 8 Sep 2020 02:56:52 -0700 Subject: scsi: qedi: Fix list_del corruption while removing active I/O While aborting the I/O, the firmware cleanup task timed out and driver deleted the I/O from active command list. Some time later the firmware sent the cleanup task response and driver again deleted the I/O from active command list causing firmware to send completion for non-existent I/O and list_del corruption of active command list. Add fix to check if I/O is present before deleting it from the active command list to ensure firmware sends valid I/O completion and protect against list_del corruption. Link: https://lore.kernel.org/r/20200908095657.26821-4-mrangankar@marvell.com Signed-off-by: Nilesh Javali Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_fw.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c index 6ed74583b1b9..34c477bda8a4 100644 --- a/drivers/scsi/qedi/qedi_fw.c +++ b/drivers/scsi/qedi/qedi_fw.c @@ -816,8 +816,11 @@ static void qedi_process_cmd_cleanup_resp(struct qedi_ctx *qedi, qedi_clear_task_idx(qedi_conn->qedi, rtid); spin_lock(&qedi_conn->list_lock); - list_del_init(&dbg_cmd->io_cmd); - qedi_conn->active_cmd_count--; + if (likely(dbg_cmd->io_cmd_in_list)) { + dbg_cmd->io_cmd_in_list = false; + list_del_init(&dbg_cmd->io_cmd); + qedi_conn->active_cmd_count--; + } spin_unlock(&qedi_conn->list_lock); qedi_cmd->state = CLEANUP_RECV; wake_up_interruptible(&qedi_conn->wait_queue); @@ -1235,6 +1238,7 @@ int qedi_cleanup_all_io(struct qedi_ctx *qedi, struct qedi_conn *qedi_conn, qedi_conn->cmd_cleanup_req++; qedi_iscsi_cleanup_task(ctask, true); + cmd->io_cmd_in_list = false; list_del_init(&cmd->io_cmd); qedi_conn->active_cmd_count--; QEDI_WARN(&qedi->dbg_ctx, @@ -1446,8 +1450,11 @@ ldel_exit: spin_unlock_bh(&qedi_conn->tmf_work_lock); spin_lock(&qedi_conn->list_lock); - list_del_init(&cmd->io_cmd); - qedi_conn->active_cmd_count--; + if (likely(cmd->io_cmd_in_list)) { + cmd->io_cmd_in_list = false; + list_del_init(&cmd->io_cmd); + qedi_conn->active_cmd_count--; + } spin_unlock(&qedi_conn->list_lock); clear_bit(QEDI_CONN_FW_CLEANUP, &qedi_conn->flags); -- cgit v1.2.3 From c0650e28448d606c84f76c34333dba30f61de993 Mon Sep 17 00:00:00 2001 From: Nilesh Javali Date: Tue, 8 Sep 2020 02:56:53 -0700 Subject: scsi: qedi: Protect active command list to avoid list corruption Protect active command list for non-I/O commands like login response, logout response, text response, and recovery cleanup of active list to avoid list corruption. Link: https://lore.kernel.org/r/20200908095657.26821-5-mrangankar@marvell.com Signed-off-by: Nilesh Javali Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_fw.c | 8 ++++++++ drivers/scsi/qedi/qedi_iscsi.c | 2 ++ 2 files changed, 10 insertions(+) diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c index 34c477bda8a4..f158fde0a43c 100644 --- a/drivers/scsi/qedi/qedi_fw.c +++ b/drivers/scsi/qedi/qedi_fw.c @@ -59,6 +59,7 @@ static void qedi_process_logout_resp(struct qedi_ctx *qedi, "Freeing tid=0x%x for cid=0x%x\n", cmd->task_id, qedi_conn->iscsi_conn_id); + spin_lock(&qedi_conn->list_lock); if (likely(cmd->io_cmd_in_list)) { cmd->io_cmd_in_list = false; list_del_init(&cmd->io_cmd); @@ -69,6 +70,7 @@ static void qedi_process_logout_resp(struct qedi_ctx *qedi, cmd->task_id, qedi_conn->iscsi_conn_id, &cmd->io_cmd); } + spin_unlock(&qedi_conn->list_lock); cmd->state = RESPONSE_RECEIVED; qedi_clear_task_idx(qedi, cmd->task_id); @@ -122,6 +124,7 @@ static void qedi_process_text_resp(struct qedi_ctx *qedi, "Freeing tid=0x%x for cid=0x%x\n", cmd->task_id, qedi_conn->iscsi_conn_id); + spin_lock(&qedi_conn->list_lock); if (likely(cmd->io_cmd_in_list)) { cmd->io_cmd_in_list = false; list_del_init(&cmd->io_cmd); @@ -132,6 +135,7 @@ static void qedi_process_text_resp(struct qedi_ctx *qedi, cmd->task_id, qedi_conn->iscsi_conn_id, &cmd->io_cmd); } + spin_unlock(&qedi_conn->list_lock); cmd->state = RESPONSE_RECEIVED; qedi_clear_task_idx(qedi, cmd->task_id); @@ -222,11 +226,13 @@ static void qedi_process_tmf_resp(struct qedi_ctx *qedi, tmf_hdr = (struct iscsi_tm *)qedi_cmd->task->hdr; + spin_lock(&qedi_conn->list_lock); if (likely(qedi_cmd->io_cmd_in_list)) { qedi_cmd->io_cmd_in_list = false; list_del_init(&qedi_cmd->io_cmd); qedi_conn->active_cmd_count--; } + spin_unlock(&qedi_conn->list_lock); if (((tmf_hdr->flags & ISCSI_FLAG_TM_FUNC_MASK) == ISCSI_TM_FUNC_LOGICAL_UNIT_RESET) || @@ -288,11 +294,13 @@ static void qedi_process_login_resp(struct qedi_ctx *qedi, ISCSI_LOGIN_RESPONSE_HDR_DATA_SEG_LEN_MASK; qedi_conn->gen_pdu.resp_wr_ptr = qedi_conn->gen_pdu.resp_buf + pld_len; + spin_lock(&qedi_conn->list_lock); if (likely(cmd->io_cmd_in_list)) { cmd->io_cmd_in_list = false; list_del_init(&cmd->io_cmd); qedi_conn->active_cmd_count--; } + spin_unlock(&qedi_conn->list_lock); memset(task_ctx, '\0', sizeof(*task_ctx)); diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c index f815845fc568..ae86a40ca040 100644 --- a/drivers/scsi/qedi/qedi_iscsi.c +++ b/drivers/scsi/qedi/qedi_iscsi.c @@ -975,11 +975,13 @@ static void qedi_cleanup_active_cmd_list(struct qedi_conn *qedi_conn) { struct qedi_cmd *cmd, *cmd_tmp; + spin_lock(&qedi_conn->list_lock); list_for_each_entry_safe(cmd, cmd_tmp, &qedi_conn->active_cmd_list, io_cmd) { list_del_init(&cmd->io_cmd); qedi_conn->active_cmd_count--; } + spin_unlock(&qedi_conn->list_lock); } static void qedi_ep_disconnect(struct iscsi_endpoint *ep) -- cgit v1.2.3 From 5a2e69af16cecb30395964e117ba7f0e155a586d Mon Sep 17 00:00:00 2001 From: Manish Rangankar Date: Tue, 8 Sep 2020 02:56:54 -0700 Subject: scsi: qedi: Use snprintf instead of sprintf Use snprintf to limit max number of bytes to the buffer. Link: https://lore.kernel.org/r/20200908095657.26821-6-mrangankar@marvell.com Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index c6842af1f21b..15b78e1783c2 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -2537,7 +2537,7 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_DISC, "MAC address is %pM.\n", qedi->mac); - sprintf(host_buf, "host_%d", qedi->shost->host_no); + snprintf(host_buf, sizeof(host_buf), "host_%d", qedi->shost->host_no); qedi_ops->common->set_name(qedi->cdev, host_buf); qedi_ops->register_ops(qedi->cdev, &qedi_cb_ops, qedi); -- cgit v1.2.3 From 4118879be3755b38171063dfd4a57611d4b20a83 Mon Sep 17 00:00:00 2001 From: Nilesh Javali Date: Tue, 8 Sep 2020 02:56:55 -0700 Subject: scsi: qedi: Mark all connections for recovery on link down event For short time cable pulls, the in-flight I/O to the firmware is never cleaned up, resulting in the behaviour of stale I/O completion causing list_del corruption and soft lockup of the system. On link down event, mark all the connections for recovery, causing cleanup of all the in-flight I/O immediately. Link: https://lore.kernel.org/r/20200908095657.26821-7-mrangankar@marvell.com Signed-off-by: Nilesh Javali Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_main.c | 10 ++++++++++ 1 file changed, 10 insertions(+) diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 15b78e1783c2..7186e814866e 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -1126,6 +1126,15 @@ static void qedi_schedule_recovery_handler(void *dev) schedule_delayed_work(&qedi->recovery_work, 0); } +static void qedi_set_conn_recovery(struct iscsi_cls_session *cls_session) +{ + struct iscsi_session *session = cls_session->dd_data; + struct iscsi_conn *conn = session->leadconn; + struct qedi_conn *qedi_conn = conn->dd_data; + + qedi_start_conn_recovery(qedi_conn->qedi, qedi_conn); +} + static void qedi_link_update(void *dev, struct qed_link_output *link) { struct qedi_ctx *qedi = (struct qedi_ctx *)dev; @@ -1137,6 +1146,7 @@ static void qedi_link_update(void *dev, struct qed_link_output *link) QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, "Link Down event.\n"); atomic_set(&qedi->link_state, QEDI_LINK_DOWN); + iscsi_host_for_each_session(qedi->shost, qedi_set_conn_recovery); } } -- cgit v1.2.3 From f4ba4e55db6db7e85e847f1a5891efa792580809 Mon Sep 17 00:00:00 2001 From: Manish Rangankar Date: Tue, 8 Sep 2020 02:56:56 -0700 Subject: scsi: qedi: Add firmware error recovery invocation support Add support to initiate MFW process recovery for all the devices if storage function receives the event first. Also added fix for kernel test robot warning, >> drivers/scsi/qedi/qedi_main.c:1119:6: warning: no previous prototype >> for 'qedi_schedule_hw_err_handler' [-Wmissing-prototypes] Link: https://lore.kernel.org/r/20200908095657.26821-8-mrangankar@marvell.com Reported-by: kernel test robot Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi.h | 4 +++ drivers/scsi/qedi/qedi_fw.c | 7 +++-- drivers/scsi/qedi/qedi_iscsi.c | 3 +- drivers/scsi/qedi/qedi_main.c | 63 +++++++++++++++++++++++++++++++++++++++++- 4 files changed, 73 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qedi/qedi.h b/drivers/scsi/qedi/qedi.h index 9c19ec9dc682..7e59d50f2fab 100644 --- a/drivers/scsi/qedi/qedi.h +++ b/drivers/scsi/qedi/qedi.h @@ -274,6 +274,10 @@ struct qedi_ctx { spinlock_t ll2_lock; /* Light L2 lock */ spinlock_t hba_lock; /* per port lock */ struct task_struct *ll2_recv_thread; + unsigned long qedi_err_flags; +#define QEDI_ERR_ATTN_CLR_EN 0 +#define QEDI_ERR_IS_RECOVERABLE 2 +#define QEDI_ERR_OVERRIDE_EN 31 unsigned long flags; #define UIO_DEV_OPENED 1 #define QEDI_IOTHREAD_WAKE 2 diff --git a/drivers/scsi/qedi/qedi_fw.c b/drivers/scsi/qedi/qedi_fw.c index f158fde0a43c..440ddd2309f1 100644 --- a/drivers/scsi/qedi/qedi_fw.c +++ b/drivers/scsi/qedi/qedi_fw.c @@ -1267,7 +1267,8 @@ int qedi_cleanup_all_io(struct qedi_ctx *qedi, struct qedi_conn *qedi_conn, rval = wait_event_interruptible_timeout(qedi_conn->wait_queue, ((qedi_conn->cmd_cleanup_req == qedi_conn->cmd_cleanup_cmpl) || - qedi_conn->ep), + test_bit(QEDI_IN_RECOVERY, + &qedi->flags)), 5 * HZ); if (rval) { QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_SCSI_TM, @@ -1292,7 +1293,9 @@ int qedi_cleanup_all_io(struct qedi_ctx *qedi, struct qedi_conn *qedi_conn, /* Enable IOs for all other sessions except current.*/ if (!wait_event_interruptible_timeout(qedi_conn->wait_queue, (qedi_conn->cmd_cleanup_req == - qedi_conn->cmd_cleanup_cmpl), + qedi_conn->cmd_cleanup_cmpl) || + test_bit(QEDI_IN_RECOVERY, + &qedi->flags), 5 * HZ)) { iscsi_host_for_each_session(qedi->shost, qedi_mark_device_available); diff --git a/drivers/scsi/qedi/qedi_iscsi.c b/drivers/scsi/qedi/qedi_iscsi.c index ae86a40ca040..08c05403cd72 100644 --- a/drivers/scsi/qedi/qedi_iscsi.c +++ b/drivers/scsi/qedi/qedi_iscsi.c @@ -1072,7 +1072,8 @@ static void qedi_ep_disconnect(struct iscsi_endpoint *ep) qedi_ep->state = EP_STATE_DISCONN_START; - if (test_bit(QEDI_IN_SHUTDOWN, &qedi->flags)) + if (test_bit(QEDI_IN_SHUTDOWN, &qedi->flags) || + test_bit(QEDI_IN_RECOVERY, &qedi->flags)) goto ep_release_conn; ret = qedi_ops->destroy_conn(qedi->cdev, qedi_ep->handle, abrt_conn); diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 7186e814866e..8fde35f843f7 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -50,6 +50,10 @@ module_param(qedi_ll2_buf_size, uint, 0644); MODULE_PARM_DESC(qedi_ll2_buf_size, "parameter to set ping packet size, default - 0x400, Jumbo packets - 0x2400."); +static uint qedi_flags_override; +module_param(qedi_flags_override, uint, 0644); +MODULE_PARM_DESC(qedi_flags_override, "Disable/Enable MFW error flags bits action."); + const struct qed_iscsi_ops *qedi_ops; static struct scsi_transport_template *qedi_scsi_transport; static struct pci_driver qedi_pci_driver; @@ -63,6 +67,8 @@ static void qedi_reset_uio_rings(struct qedi_uio_dev *udev); static void qedi_ll2_free_skbs(struct qedi_ctx *qedi); static struct nvm_iscsi_block *qedi_get_nvram_block(struct qedi_ctx *qedi); static void qedi_recovery_handler(struct work_struct *work); +static void qedi_schedule_hw_err_handler(void *dev, + enum qed_hw_err_type err_type); static int qedi_iscsi_event_cb(void *context, u8 fw_event_code, void *fw_handle) { @@ -1112,6 +1118,39 @@ exit_get_data: return; } +void qedi_schedule_hw_err_handler(void *dev, + enum qed_hw_err_type err_type) +{ + struct qedi_ctx *qedi = (struct qedi_ctx *)dev; + unsigned long override_flags = qedi_flags_override; + + if (override_flags && test_bit(QEDI_ERR_OVERRIDE_EN, &override_flags)) + qedi->qedi_err_flags = qedi_flags_override; + + QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, + "HW error handler scheduled, err=%d err_flags=0x%x\n", + err_type, qedi->qedi_err_flags); + + switch (err_type) { + case QED_HW_ERR_MFW_RESP_FAIL: + case QED_HW_ERR_HW_ATTN: + case QED_HW_ERR_DMAE_FAIL: + case QED_HW_ERR_RAMROD_FAIL: + case QED_HW_ERR_FW_ASSERT: + /* Prevent HW attentions from being reasserted */ + if (test_bit(QEDI_ERR_ATTN_CLR_EN, &qedi->qedi_err_flags)) + qedi_ops->common->attn_clr_enable(qedi->cdev, true); + + if (err_type == QED_HW_ERR_RAMROD_FAIL && + test_bit(QEDI_ERR_IS_RECOVERABLE, &qedi->qedi_err_flags)) + qedi_ops->common->recovery_process(qedi->cdev); + + break; + default: + break; + } +} + static void qedi_schedule_recovery_handler(void *dev) { struct qedi_ctx *qedi = dev; @@ -1154,6 +1193,7 @@ static struct qed_iscsi_cb_ops qedi_cb_ops = { { .link_update = qedi_link_update, .schedule_recovery_handler = qedi_schedule_recovery_handler, + .schedule_hw_err_handler = qedi_schedule_hw_err_handler, .get_protocol_tlv_data = qedi_get_protocol_tlv_data, .get_generic_tlv_data = qedi_get_generic_tlv_data, } @@ -2354,6 +2394,7 @@ static void __qedi_remove(struct pci_dev *pdev, int mode) { struct qedi_ctx *qedi = pci_get_drvdata(pdev); int rval; + u16 retry = 10; if (mode == QEDI_MODE_SHUTDOWN) iscsi_host_for_each_session(qedi->shost, @@ -2382,7 +2423,13 @@ static void __qedi_remove(struct pci_dev *pdev, int mode) qedi_sync_free_irqs(qedi); if (!test_bit(QEDI_IN_OFFLINE, &qedi->flags)) { - qedi_ops->stop(qedi->cdev); + while (retry--) { + rval = qedi_ops->stop(qedi->cdev); + if (rval < 0) + msleep(1000); + else + break; + } qedi_ops->ll2->stop(qedi->cdev); } @@ -2441,6 +2488,7 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) struct qed_probe_params qed_params; void *task_start, *task_end; int rc; + u16 retry = 10; if (mode != QEDI_MODE_RECOVERY) { qedi = qedi_host_alloc(pdev); @@ -2452,6 +2500,10 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) qedi = pci_get_drvdata(pdev); } +retry_probe: + if (mode == QEDI_MODE_RECOVERY) + msleep(2000); + memset(&qed_params, 0, sizeof(qed_params)); qed_params.protocol = QED_PROTOCOL_ISCSI; qed_params.dp_module = qedi_qed_debug; @@ -2459,11 +2511,20 @@ static int __qedi_probe(struct pci_dev *pdev, int mode) qed_params.is_vf = is_vf; qedi->cdev = qedi_ops->common->probe(pdev, &qed_params); if (!qedi->cdev) { + if (mode == QEDI_MODE_RECOVERY && retry) { + QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, + "Retry %d initialize hardware\n", retry); + retry--; + goto retry_probe; + } + rc = -ENODEV; QEDI_ERR(&qedi->dbg_ctx, "Cannot initialize hardware\n"); goto free_host; } + set_bit(QEDI_ERR_ATTN_CLR_EN, &qedi->qedi_err_flags); + set_bit(QEDI_ERR_IS_RECOVERABLE, &qedi->qedi_err_flags); atomic_set(&qedi->link_state, QEDI_LINK_DOWN); rc = qedi_ops->fill_dev_info(qedi->cdev, &qedi->dev_info); -- cgit v1.2.3 From 96a766a789eb49d85c9a15eac9456fbddadb1158 Mon Sep 17 00:00:00 2001 From: Manish Rangankar Date: Tue, 8 Sep 2020 02:56:57 -0700 Subject: scsi: qedi: Add support for handling PCIe errors The error recovery is handled by management firmware (MFW) with the help of qed/qedi drivers. Upon detecting errors, driver informs MFW about this event which in turn starts a recovery process. MFW sends ERROR_RECOVERY notification to the driver which performs the required cleanup/recovery from the driver side. Link: https://lore.kernel.org/r/20200908095657.26821-9-mrangankar@marvell.com Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi_main.c | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 8fde35f843f7..642790b2d9be 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -2390,6 +2390,25 @@ kset_free: return -ENOMEM; } +static pci_ers_result_t qedi_io_error_detected(struct pci_dev *pdev, + pci_channel_state_t state) +{ + struct qedi_ctx *qedi = pci_get_drvdata(pdev); + + QEDI_ERR(&qedi->dbg_ctx, "%s: PCI error detected [%d]\n", + __func__, state); + + if (test_and_set_bit(QEDI_IN_RECOVERY, &qedi->flags)) { + QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, + "Recovery already in progress.\n"); + return PCI_ERS_RESULT_NONE; + } + + qedi_ops->common->recovery_process(qedi->cdev); + + return PCI_ERS_RESULT_CAN_RECOVER; +} + static void __qedi_remove(struct pci_dev *pdev, int mode) { struct qedi_ctx *qedi = pci_get_drvdata(pdev); @@ -2819,12 +2838,17 @@ MODULE_DEVICE_TABLE(pci, qedi_pci_tbl); static enum cpuhp_state qedi_cpuhp_state; +static struct pci_error_handlers qedi_err_handler = { + .error_detected = qedi_io_error_detected, +}; + static struct pci_driver qedi_pci_driver = { .name = QEDI_MODULE_NAME, .id_table = qedi_pci_tbl, .probe = qedi_probe, .remove = qedi_remove, .shutdown = qedi_shutdown, + .err_handler = &qedi_err_handler, }; static int __init qedi_init(void) -- cgit v1.2.3 From 30a90782c105fe498df74161392aa143796b6886 Mon Sep 17 00:00:00 2001 From: Stanley Chu Date: Tue, 8 Sep 2020 14:45:04 +0800 Subject: scsi: ufs: ufs-mediatek: Eliminate error message for unbound mphy Some MediaTek platforms does not have to bind MPHY so users shall not see any unnecessary logs. Simply remove logs for this case. Link: https://lore.kernel.org/r/20200908064507.30774-2-stanley.chu@mediatek.com Fixes: fc4983018fea ("scsi: ufs-mediatek: Allow unbound mphy") Signed-off-by: Stanley Chu Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-mediatek.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 29cd017c1aa0..7487b25fa651 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -129,7 +129,10 @@ static int ufs_mtk_bind_mphy(struct ufs_hba *hba) __func__, err); } else if (IS_ERR(host->mphy)) { err = PTR_ERR(host->mphy); - dev_info(dev, "%s: PHY get failed %d\n", __func__, err); + if (err != -ENODEV) { + dev_info(dev, "%s: PHY get failed %d\n", __func__, + err); + } } if (err) -- cgit v1.2.3 From a3e40b80dc951057033dce86f0e675b2b822b513 Mon Sep 17 00:00:00 2001 From: Stanley Chu Date: Tue, 8 Sep 2020 14:45:05 +0800 Subject: scsi: ufs: ufs-mediatek: Fix HOST_PA_TACTIVATE quirk Simply add HOST_PA_TACTIVATE quirk back since it was incorrectly removed before. Link: https://lore.kernel.org/r/20200908064507.30774-3-stanley.chu@mediatek.com Fixes: 47d054580a75 ("scsi: ufs-mediatek: fix HOST_PA_TACTIVATE quirk for Samsung UFS Devices") Signed-off-by: Stanley Chu Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-mediatek.c | 6 ------ 1 file changed, 6 deletions(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 7487b25fa651..887c03e8bcc0 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -672,13 +672,7 @@ static int ufs_mtk_apply_dev_quirks(struct ufs_hba *hba) static void ufs_mtk_fixup_dev_quirks(struct ufs_hba *hba) { - struct ufs_dev_info *dev_info = &hba->dev_info; - u16 mid = dev_info->wmanufacturerid; - ufshcd_fixup_dev_quirks(hba, ufs_mtk_dev_fixups); - - if (mid == UFS_VENDOR_SAMSUNG) - hba->dev_quirks &= ~UFS_DEVICE_QUIRK_HOST_PA_TACTIVATE; } /** -- cgit v1.2.3 From 9a9ddb8a3a6d247321dfd4b07a04e3f2e92e576f Mon Sep 17 00:00:00 2001 From: Stanley Chu Date: Tue, 8 Sep 2020 14:45:06 +0800 Subject: scsi: ufs: ufs-mediatek: Fix flag of unipro low-power mode Forcibly leave UniPro low-power mode if UIC commands failed. This makes hba_enable_delay_us as correct (default) value for re-enabling the host. At the same time, change type of parameter "lpm" in function ufs_mtk_unipro_set_pm() to "bool". Link: https://lore.kernel.org/r/20200908064507.30774-4-stanley.chu@mediatek.com Signed-off-by: Stanley Chu Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-mediatek.c | 20 ++++++++++++++------ 1 file changed, 14 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 887c03e8bcc0..feba74a72309 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -419,7 +419,7 @@ static int ufs_mtk_pwr_change_notify(struct ufs_hba *hba, return ret; } -static int ufs_mtk_unipro_set_pm(struct ufs_hba *hba, u32 lpm) +static int ufs_mtk_unipro_set_pm(struct ufs_hba *hba, bool lpm) { int ret; struct ufs_mtk_host *host = ufshcd_get_variant(hba); @@ -427,8 +427,14 @@ static int ufs_mtk_unipro_set_pm(struct ufs_hba *hba, u32 lpm) ret = ufshcd_dme_set(hba, UIC_ARG_MIB_SEL(VS_UNIPROPOWERDOWNCONTROL, 0), lpm); - if (!ret) + if (!ret || !lpm) { + /* + * Forcibly set as non-LPM mode if UIC commands is failed + * to use default hba_enable_delay_us value for re-enabling + * the host. + */ host->unipro_lpm = lpm; + } return ret; } @@ -438,7 +444,9 @@ static int ufs_mtk_pre_link(struct ufs_hba *hba) int ret; u32 tmp; - ufs_mtk_unipro_set_pm(hba, 0); + ret = ufs_mtk_unipro_set_pm(hba, false); + if (ret) + return ret; /* * Setting PA_Local_TX_LCC_Enable to 0 before link startup @@ -546,7 +554,7 @@ static int ufs_mtk_link_set_hpm(struct ufs_hba *hba) if (err) return err; - err = ufs_mtk_unipro_set_pm(hba, 0); + err = ufs_mtk_unipro_set_pm(hba, false); if (err) return err; @@ -567,10 +575,10 @@ static int ufs_mtk_link_set_lpm(struct ufs_hba *hba) { int err; - err = ufs_mtk_unipro_set_pm(hba, 1); + err = ufs_mtk_unipro_set_pm(hba, true); if (err) { /* Resume UniPro state for following error recovery */ - ufs_mtk_unipro_set_pm(hba, 0); + ufs_mtk_unipro_set_pm(hba, false); return err; } -- cgit v1.2.3 From e0f9f862623cd82e8cfe740e3de579a78fb852ca Mon Sep 17 00:00:00 2001 From: Stanley Chu Date: Tue, 8 Sep 2020 14:45:07 +0800 Subject: scsi: ufs: ufs-mediatek: Add host reset mechanism Add host reset mechanism to try to recover host-side errors during recovery flow. Link: https://lore.kernel.org/r/20200908064507.30774-5-stanley.chu@mediatek.com Signed-off-by: Stanley Chu Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-mediatek.c | 48 +++++++++++++++++++++++++++++++++++++++-- drivers/scsi/ufs/ufs-mediatek.h | 3 +++ 2 files changed, 49 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index feba74a72309..1a9133ac6efb 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -13,6 +13,7 @@ #include #include #include +#include #include #include "ufshcd.h" @@ -91,16 +92,57 @@ static void ufs_mtk_crypto_enable(struct ufs_hba *hba) } } +static void ufs_mtk_host_reset(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + + reset_control_assert(host->hci_reset); + reset_control_assert(host->crypto_reset); + reset_control_assert(host->unipro_reset); + + usleep_range(100, 110); + + reset_control_deassert(host->unipro_reset); + reset_control_deassert(host->crypto_reset); + reset_control_deassert(host->hci_reset); +} + +static void ufs_mtk_init_reset_control(struct ufs_hba *hba, + struct reset_control **rc, + char *str) +{ + *rc = devm_reset_control_get(hba->dev, str); + if (IS_ERR(*rc)) { + dev_info(hba->dev, "Failed to get reset control %s: %d\n", + str, PTR_ERR(*rc)); + *rc = NULL; + } +} + +static void ufs_mtk_init_reset(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + + ufs_mtk_init_reset_control(hba, &host->hci_reset, + "hci_rst"); + ufs_mtk_init_reset_control(hba, &host->unipro_reset, + "unipro_rst"); + ufs_mtk_init_reset_control(hba, &host->crypto_reset, + "crypto_rst"); +} + static int ufs_mtk_hce_enable_notify(struct ufs_hba *hba, enum ufs_notify_change_status status) { struct ufs_mtk_host *host = ufshcd_get_variant(hba); if (status == PRE_CHANGE) { - if (host->unipro_lpm) + if (host->unipro_lpm) { hba->vps->hba_enable_delay_us = 0; - else + } else { hba->vps->hba_enable_delay_us = 600; + ufs_mtk_host_reset(hba); + } if (hba->caps & UFSHCD_CAP_CRYPTO) ufs_mtk_crypto_enable(hba); @@ -335,6 +377,8 @@ static int ufs_mtk_init(struct ufs_hba *hba) if (err) goto out_variant_clear; + ufs_mtk_init_reset(hba); + /* Enable runtime autosuspend */ hba->caps |= UFSHCD_CAP_RPM_AUTOSUSPEND; diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h index 87657376d27a..5c32d5f52759 100644 --- a/drivers/scsi/ufs/ufs-mediatek.h +++ b/drivers/scsi/ufs/ufs-mediatek.h @@ -92,6 +92,9 @@ enum { struct ufs_mtk_host { struct ufs_hba *hba; struct phy *mphy; + struct reset_control *hci_reset; + struct reset_control *unipro_reset; + struct reset_control *crypto_reset; bool mphy_powered_on; bool unipro_lpm; bool ref_clk_enabled; -- cgit v1.2.3 From 066664645d9aa33cde7a075d9ddd83033900d6f1 Mon Sep 17 00:00:00 2001 From: Javed Hasan Date: Mon, 7 Sep 2020 05:14:36 -0700 Subject: scsi: qedf: Change the debug parameter permission to read & write Change the debug parameter permission to read & write. Gives flexibility to change the debug verbosity dynamically. Link: https://lore.kernel.org/r/20200907121443.5150-2-jhasan@marvell.com Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 39c4bdc89937..7d8fb8f2f29b 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -41,7 +41,7 @@ MODULE_PARM_DESC(dev_loss_tmo, " dev_loss_tmo setting for attached " "remote ports (default 60)"); uint qedf_debug = QEDF_LOG_INFO; -module_param_named(debug, qedf_debug, uint, S_IRUGO); +module_param_named(debug, qedf_debug, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(debug, " Debug mask. Pass '1' to enable default debugging" " mask"); -- cgit v1.2.3 From 31fc82d7fbd8ed73c63baec608797f8219e72c3e Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Mon, 7 Sep 2020 05:14:37 -0700 Subject: scsi: qedf: Correct the comment in qedf_initiate_els Correct the misleading comment in qedf_initiate_els(). Link: https://lore.kernel.org/r/20200907121443.5150-3-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_els.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qedf/qedf_els.c b/drivers/scsi/qedf/qedf_els.c index 6cb8c9b40850..625e58ccb8c8 100644 --- a/drivers/scsi/qedf/qedf_els.c +++ b/drivers/scsi/qedf/qedf_els.c @@ -124,7 +124,7 @@ static int qedf_initiate_els(struct qedf_rport *fcport, unsigned int op, task = qedf_get_task_mem(&qedf->tasks, xid); qedf_init_mp_task(els_req, task, sqe); - /* Put timer on original I/O request */ + /* Put timer on els request */ if (timer_msec) qedf_cmd_timer_set(qedf, els_req, timer_msec); -- cgit v1.2.3 From f78f8126264bdb688f4408b88e3ca35f60865ae4 Mon Sep 17 00:00:00 2001 From: Javed Hasan Date: Mon, 7 Sep 2020 05:14:38 -0700 Subject: scsi: qedf: Fix for the session’s E_D_TOV value MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Firmware expects E_D_TOV field in connection offload parameters as “msec”. Earlier incorrect value (100ms), was leading to abort from driver in the case when data frames for read take more than 100ms from target side, resulting in firmware reporting E_D_TOV expiration. Link: https://lore.kernel.org/r/20200907121443.5150-4-jhasan@marvell.com Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 7d8fb8f2f29b..b9c1740e35ed 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -1333,7 +1333,7 @@ static int qedf_offload_connection(struct qedf_ctx *qedf, ether_addr_copy(conn_info.dst_mac, qedf->ctlr.dest_addr); conn_info.tx_max_fc_pay_len = fcport->rdata->maxframe_size; - conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov / 20; + conn_info.e_d_tov_timer_val = qedf->lport->e_d_tov; conn_info.rec_tov_timer_val = 3; /* I think this is what E3 was */ conn_info.rx_max_fc_pay_len = fcport->rdata->maxframe_size; -- cgit v1.2.3 From 41715c6292b6273beffc699300ffc931749233c8 Mon Sep 17 00:00:00 2001 From: Javed Hasan Date: Mon, 7 Sep 2020 05:14:39 -0700 Subject: scsi: qedf: FDMI attributes correction Correction in the FDMI attributes required for RHBA and RPA registration. Link: https://lore.kernel.org/r/20200907121443.5150-5-jhasan@marvell.com Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf.h | 5 +++ drivers/scsi/qedf/qedf_main.c | 78 +++++++++++++++++++++++++++++-------------- 2 files changed, 58 insertions(+), 25 deletions(-) diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h index e163be8af965..15d6cbef7459 100644 --- a/drivers/scsi/qedf/qedf.h +++ b/drivers/scsi/qedf/qedf.h @@ -544,6 +544,11 @@ void qedf_ctx_soft_reset(struct fc_lport *lport); #define FCOE_WORD_TO_BYTE 4 #define QEDF_MAX_TASK_NUM 0xFFFF +#define QL45xxx 0x165C +#define QL41xxx 0x8080 +#define MAX_CT_PAYLOAD 2048 +#define DISCOVERED_PORTS 4 +#define NUMBER_OF_PORTS 1 struct fip_vlan { struct ethhdr eth; diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index b9c1740e35ed..fe7f1753060b 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -1645,11 +1645,13 @@ static void qedf_fcoe_ctlr_setup(struct qedf_ctx *qedf) static void qedf_setup_fdmi(struct qedf_ctx *qedf) { struct fc_lport *lport = qedf->lport; - struct fc_host_attrs *fc_host = shost_to_fc_host(lport->host); - u64 dsn; + u8 buf[8]; + int pos; + uint32_t i; /* - * fdmi_enabled needs to be set for libfc to execute FDMI registration. + * fdmi_enabled needs to be set for libfc + * to execute FDMI registration */ lport->fdmi_enabled = 1; @@ -1659,32 +1661,53 @@ static void qedf_setup_fdmi(struct qedf_ctx *qedf) */ /* Get the PCI-e Device Serial Number Capability */ - dsn = pci_get_dsn(qedf->pdev); - if (dsn) - snprintf(fc_host->serial_number, - sizeof(fc_host->serial_number), "%016llX", dsn); - else - snprintf(fc_host->serial_number, - sizeof(fc_host->serial_number), "Unknown"); + pos = pci_find_ext_capability(qedf->pdev, PCI_EXT_CAP_ID_DSN); + if (pos) { + pos += 4; + for (i = 0; i < 8; i++) + pci_read_config_byte(qedf->pdev, pos + i, &buf[i]); + + snprintf(fc_host_serial_number(lport->host), + FC_SERIAL_NUMBER_SIZE, + "%02X%02X%02X%02X%02X%02X%02X%02X", + buf[7], buf[6], buf[5], buf[4], + buf[3], buf[2], buf[1], buf[0]); + } else + snprintf(fc_host_serial_number(lport->host), + FC_SERIAL_NUMBER_SIZE, "Unknown"); + + snprintf(fc_host_manufacturer(lport->host), + FC_SERIAL_NUMBER_SIZE, "%s", "Marvell Semiconductor Inc."); + + if (qedf->pdev->device == QL45xxx) { + snprintf(fc_host_model(lport->host), + FC_SYMBOLIC_NAME_SIZE, "%s", "QL45xxx"); - snprintf(fc_host->manufacturer, - sizeof(fc_host->manufacturer), "%s", "Cavium Inc."); + snprintf(fc_host_model_description(lport->host), + FC_SYMBOLIC_NAME_SIZE, "%s", + "Marvell FastLinQ QL45xxx FCoE Adapter"); + } + + if (qedf->pdev->device == QL41xxx) { + snprintf(fc_host_model(lport->host), + FC_SYMBOLIC_NAME_SIZE, "%s", "QL41xxx"); - snprintf(fc_host->model, sizeof(fc_host->model), "%s", "QL41000"); + snprintf(fc_host_model_description(lport->host), + FC_SYMBOLIC_NAME_SIZE, "%s", + "Marvell FastLinQ QL41xxx FCoE Adapter"); + } - snprintf(fc_host->model_description, sizeof(fc_host->model_description), - "%s", "QLogic FastLinQ QL41000 Series 10/25/40/50GGbE Controller" - "(FCoE)"); + snprintf(fc_host_hardware_version(lport->host), + FC_VERSION_STRING_SIZE, "Rev %d", qedf->pdev->revision); - snprintf(fc_host->hardware_version, sizeof(fc_host->hardware_version), - "Rev %d", qedf->pdev->revision); + snprintf(fc_host_driver_version(lport->host), + FC_VERSION_STRING_SIZE, "%s", QEDF_VERSION); - snprintf(fc_host->driver_version, sizeof(fc_host->driver_version), - "%s", QEDF_VERSION); + snprintf(fc_host_firmware_version(lport->host), + FC_VERSION_STRING_SIZE, "%d.%d.%d.%d", + FW_MAJOR_VERSION, FW_MINOR_VERSION, FW_REVISION_VERSION, + FW_ENGINEERING_VERSION); - snprintf(fc_host->firmware_version, sizeof(fc_host->firmware_version), - "%d.%d.%d.%d", FW_MAJOR_VERSION, FW_MINOR_VERSION, - FW_REVISION_VERSION, FW_ENGINEERING_VERSION); } static int qedf_lport_setup(struct qedf_ctx *qedf) @@ -1731,8 +1754,13 @@ static int qedf_lport_setup(struct qedf_ctx *qedf) fc_host_dev_loss_tmo(lport->host) = qedf_dev_loss_tmo; /* Set symbolic node name */ - snprintf(fc_host_symbolic_name(lport->host), 256, - "QLogic %s v%s", QEDF_MODULE_NAME, QEDF_VERSION); + if (qedf->pdev->device == QL45xxx) + snprintf(fc_host_symbolic_name(lport->host), 256, + "Marvell FastLinQ 45xxx FCoE v%s", QEDF_VERSION); + + if (qedf->pdev->device == QL41xxx) + snprintf(fc_host_symbolic_name(lport->host), 256, + "Marvell FastLinQ 41xxx FCoE v%s", QEDF_VERSION); qedf_setup_fdmi(qedf); -- cgit v1.2.3 From 10aff62fab263ad7661780816551420cea956ebb Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Mon, 7 Sep 2020 05:14:40 -0700 Subject: scsi: qedf: Return SUCCESS if stale rport is encountered If SUCCESS is not returned, error handling will escalate. Return SUCCESS similar to other conditions in this function. Link: https://lore.kernel.org/r/20200907121443.5150-6-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index fe7f1753060b..073de50dfbe8 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -726,7 +726,7 @@ static int qedf_eh_abort(struct scsi_cmnd *sc_cmd) rdata = fcport->rdata; if (!rdata || !kref_get_unless_zero(&rdata->kref)) { QEDF_ERR(&qedf->dbg_ctx, "stale rport, sc_cmd=%p\n", sc_cmd); - rc = 1; + rc = SUCCESS; goto out; } -- cgit v1.2.3 From 55e049910e08caff21c8535c6d6672dc4665f36d Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Mon, 7 Sep 2020 05:14:41 -0700 Subject: scsi: qedf: Add schedule_hw_err_handler callback for fan failure On fan failure, disable the PCI function and initiate recovery for ramrod failure. Link: https://lore.kernel.org/r/20200907121443.5150-7-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf.h | 4 ++++ drivers/scsi/qedf/qedf_main.c | 45 +++++++++++++++++++++++++++++++++++++++++++ 2 files changed, 49 insertions(+) diff --git a/drivers/scsi/qedf/qedf.h b/drivers/scsi/qedf/qedf.h index 15d6cbef7459..0e2cbb164eeb 100644 --- a/drivers/scsi/qedf/qedf.h +++ b/drivers/scsi/qedf/qedf.h @@ -389,6 +389,7 @@ struct qedf_ctx { mempool_t *io_mempool; struct workqueue_struct *dpc_wq; struct delayed_work recovery_work; + struct delayed_work board_disable_work; struct delayed_work grcdump_work; struct delayed_work stag_work; @@ -541,6 +542,9 @@ extern void qedf_get_generic_tlv_data(void *dev, struct qed_generic_tlvs *data); extern void qedf_wq_grcdump(struct work_struct *work); void qedf_stag_change_work(struct work_struct *work); void qedf_ctx_soft_reset(struct fc_lport *lport); +extern void qedf_board_disable_work(struct work_struct *work); +extern void qedf_schedule_hw_err_handler(void *dev, + enum qed_hw_err_type err_type); #define FCOE_WORD_TO_BYTE 4 #define QEDF_MAX_TASK_NUM 0xFFFF diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index 073de50dfbe8..ed595c83be3d 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -105,6 +105,12 @@ module_param_named(dp_level, qedf_dp_level, uint, S_IRUGO); MODULE_PARM_DESC(dp_level, " printk verbosity control passed to qed module " "during probe (0-3: 0 more verbose)."); +static bool qedf_enable_recovery = true; +module_param_named(enable_recovery, qedf_enable_recovery, + bool, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(enable_recovery, "Enable/disable recovery on driver/firmware " + "interface level errors 0 = Disabled, 1 = Enabled (Default: 1)."); + struct workqueue_struct *qedf_io_wq; static struct fcoe_percpu_s qedf_global; @@ -690,6 +696,7 @@ static struct qed_fcoe_cb_ops qedf_cb_ops = { .dcbx_aen = qedf_dcbx_handler, .get_generic_tlv_data = qedf_get_generic_tlv_data, .get_protocol_tlv_data = qedf_get_protocol_tlv_data, + .schedule_hw_err_handler = qedf_schedule_hw_err_handler, } }; @@ -3799,6 +3806,44 @@ void qedf_wq_grcdump(struct work_struct *work) qedf_capture_grc_dump(qedf); } +void qedf_schedule_hw_err_handler(void *dev, enum qed_hw_err_type err_type) +{ + struct qedf_ctx *qedf = dev; + + QEDF_ERR(&(qedf->dbg_ctx), + "Hardware error handler scheduled, event=%d.\n", + err_type); + + if (test_bit(QEDF_IN_RECOVERY, &qedf->flags)) { + QEDF_ERR(&(qedf->dbg_ctx), + "Already in recovery, not scheduling board disable work.\n"); + return; + } + + switch (err_type) { + case QED_HW_ERR_FAN_FAIL: + schedule_delayed_work(&qedf->board_disable_work, 0); + break; + case QED_HW_ERR_MFW_RESP_FAIL: + case QED_HW_ERR_HW_ATTN: + case QED_HW_ERR_DMAE_FAIL: + case QED_HW_ERR_FW_ASSERT: + /* Prevent HW attentions from being reasserted */ + qed_ops->common->attn_clr_enable(qedf->cdev, true); + break; + case QED_HW_ERR_RAMROD_FAIL: + /* Prevent HW attentions from being reasserted */ + qed_ops->common->attn_clr_enable(qedf->cdev, true); + + if (qedf_enable_recovery) + qed_ops->common->recovery_process(qedf->cdev); + + break; + default: + break; + } +} + /* * Protocol TLV handler */ -- cgit v1.2.3 From 988100a7de0f07c27063d1376ebc4eab983e228b Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Mon, 7 Sep 2020 05:14:42 -0700 Subject: scsi: qedf: Retry qed->probe during recovery During recovery due to FCoE fn ramrod failure we wait for 2 sec and then call qed->probe. If probe fails then retry max 10 times. Link: https://lore.kernel.org/r/20200907121443.5150-8-jhasan@marvell.com Signed-off-by: Saurav Kashyap Signed-off-by: Javed Hasan Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_main.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/scsi/qedf/qedf_main.c b/drivers/scsi/qedf/qedf_main.c index ed595c83be3d..20b0c5e1c2c5 100644 --- a/drivers/scsi/qedf/qedf_main.c +++ b/drivers/scsi/qedf/qedf_main.c @@ -3267,11 +3267,16 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) void *task_start, *task_end; struct qed_slowpath_params slowpath_params; struct qed_probe_params qed_params; + u16 retry_cnt = 10; /* * When doing error recovery we didn't reap the lport so don't try * to reallocate it. */ +retry_probe: + if (mode == QEDF_MODE_RECOVERY) + msleep(2000); + if (mode != QEDF_MODE_RECOVERY) { lport = libfc_host_alloc(&qedf_host_template, sizeof(struct qedf_ctx)); @@ -3358,6 +3363,12 @@ static int __qedf_probe(struct pci_dev *pdev, int mode) qed_params.is_vf = is_vf; qedf->cdev = qed_ops->common->probe(pdev, &qed_params); if (!qedf->cdev) { + if ((mode == QEDF_MODE_RECOVERY) && retry_cnt) { + QEDF_ERR(&qedf->dbg_ctx, + "Retry %d initialize hardware\n", retry_cnt); + retry_cnt--; + goto retry_probe; + } QEDF_ERR(&qedf->dbg_ctx, "common probe failed.\n"); rc = -ENODEV; goto err1; -- cgit v1.2.3 From c0014f94218ea3a312f6235febea0d626c5f2154 Mon Sep 17 00:00:00 2001 From: Daniel Wagner Date: Tue, 8 Sep 2020 10:15:13 +0200 Subject: scsi: qla2xxx: Warn if done() or free() are called on an already freed srb Emit a warning when ->done or ->free are called on an already freed srb. There is a hidden use-after-free bug in the driver which corrupts the srb memory pool which originates from the cleanup callbacks. An extensive search didn't bring any lights on the real problem. The initial fix was to set both pointers to NULL and try to catch invalid accesses. But instead the memory corruption was gone and the driver didn't crash. Since not all calling places check for NULL pointer, add explicitly default handlers. With this we workaround the memory corruption and add a debug help. Link: https://lore.kernel.org/r/20200908081516.8561-2-dwagner@suse.de Reviewed-by: Martin Wilck Reviewed-by: Arun Easi Signed-off-by: Daniel Wagner Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_init.c | 10 ++++++++++ drivers/scsi/qla2xxx/qla_inline.h | 5 +++++ 2 files changed, 15 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 57a2d76aa691..fb7d57dc4e69 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -63,6 +63,16 @@ void qla2x00_sp_free(srb_t *sp) qla2x00_rel_sp(sp); } +void qla2xxx_rel_done_warning(srb_t *sp, int res) +{ + WARN_ONCE(1, "Calling done() of an already freed srb %p object\n", sp); +} + +void qla2xxx_rel_free_warning(srb_t *sp) +{ + WARN_ONCE(1, "Calling free() of an already freed srb %p object\n", sp); +} + /* Asynchronous Login/Logout Routines -------------------------------------- */ unsigned long diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h index 861dc522723c..2aa6f81f87c4 100644 --- a/drivers/scsi/qla2xxx/qla_inline.h +++ b/drivers/scsi/qla2xxx/qla_inline.h @@ -207,10 +207,15 @@ qla2xxx_get_qpair_sp(scsi_qla_host_t *vha, struct qla_qpair *qpair, return sp; } +void qla2xxx_rel_done_warning(srb_t *sp, int res); +void qla2xxx_rel_free_warning(srb_t *sp); + static inline void qla2xxx_rel_qpair_sp(struct qla_qpair *qpair, srb_t *sp) { sp->qpair = NULL; + sp->done = qla2xxx_rel_done_warning; + sp->free = qla2xxx_rel_free_warning; mempool_free(sp, qpair->srb_mempool); QLA_QPAIR_MARK_NOT_BUSY(qpair); } -- cgit v1.2.3 From 622299f16f33852baddf94b32bc80e2c1e24c39a Mon Sep 17 00:00:00 2001 From: Daniel Wagner Date: Tue, 8 Sep 2020 10:15:14 +0200 Subject: scsi: qla2xxx: Simplify return value logic in qla2x00_get_sp_from_handle() Refactor qla2x00_get_sp_from_handle() to avoid the unnecessary goto if early returns are used. With this we can also avoid preinitialzing the sp pointer. Link: https://lore.kernel.org/r/20200908081516.8561-3-dwagner@suse.de Reviewed-by: Martin Wilck Reviewed-by: Arun Easi Signed-off-by: Daniel Wagner Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_isr.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 27bcd346af7c..5d278155e4e7 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1716,7 +1716,7 @@ qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, { struct qla_hw_data *ha = vha->hw; sts_entry_t *pkt = iocb; - srb_t *sp = NULL; + srb_t *sp; uint16_t index; index = LSW(pkt->handle); @@ -1728,13 +1728,13 @@ qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); else set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); - goto done; + return NULL; } sp = req->outstanding_cmds[index]; if (!sp) { ql_log(ql_log_warn, vha, 0x5032, "Invalid completion handle (%x) -- timed-out.\n", index); - return sp; + return NULL; } if (sp->handle != index) { ql_log(ql_log_warn, vha, 0x5033, @@ -1743,8 +1743,6 @@ qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, } req->outstanding_cmds[index] = NULL; - -done: return sp; } -- cgit v1.2.3 From 7d88d5dff95f929e94b9d6425f699eba22e47444 Mon Sep 17 00:00:00 2001 From: Daniel Wagner Date: Tue, 8 Sep 2020 10:15:15 +0200 Subject: scsi: qla2xxx: Log calling function name in qla2x00_get_sp_from_handle() Commit 7c3df1320e5e ("[SCSI] qla2xxx: Code changes to support new dynamic logging infrastructure.") removed the use of the func argument. Let's add it back. Link: https://lore.kernel.org/r/20200908081516.8561-4-dwagner@suse.de Reviewed-by: Arun Easi Signed-off-by: Daniel Wagner Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_isr.c | 10 ++++++---- 1 file changed, 6 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 5d278155e4e7..b0b6dd2b608d 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -1722,8 +1722,8 @@ qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, index = LSW(pkt->handle); if (index >= req->num_outstanding_cmds) { ql_log(ql_log_warn, vha, 0x5031, - "Invalid command index (%x) type %8ph.\n", - index, iocb); + "%s: Invalid command index (%x) type %8ph.\n", + func, index, iocb); if (IS_P3P_TYPE(ha)) set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); else @@ -1733,12 +1733,14 @@ qla2x00_get_sp_from_handle(scsi_qla_host_t *vha, const char *func, sp = req->outstanding_cmds[index]; if (!sp) { ql_log(ql_log_warn, vha, 0x5032, - "Invalid completion handle (%x) -- timed-out.\n", index); + "%s: Invalid completion handle (%x) -- timed-out.\n", + func, index); return NULL; } if (sp->handle != index) { ql_log(ql_log_warn, vha, 0x5033, - "SRB handle (%x) mismatch %x.\n", sp->handle, index); + "%s: SRB handle (%x) mismatch %x.\n", func, + sp->handle, index); return NULL; } -- cgit v1.2.3 From 31a3271ff11badc50d6dc0efb4da393e4c3bf388 Mon Sep 17 00:00:00 2001 From: Daniel Wagner Date: Tue, 8 Sep 2020 10:15:16 +0200 Subject: scsi: qla2xxx: Handle incorrect entry_type entries It was observed on an ISP8324 16Gb HBA with fw=8.08.203 (d0d5) in a PowerPC64 machine that pkt->entry_type was MBX_IOCB_TYPE/0x39 with an sp->type SRB_SCSI_CMD which is invalid and should not be possible. Reading the entry_type from the crash dump shows the expected value of STATUS_TYPE/0x03 but the call trace shows that qla24xx_mbx_iocb_entry() is used. Add a check to verify for consistency and reset the HBA if an invalid state is reached. Obviously, this is only a workaround until the real problem is solved. Link: https://lore.kernel.org/r/20200908081516.8561-5-dwagner@suse.de Reviewed-by: Arun Easi Signed-off-by: Daniel Wagner Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_isr.c | 29 +++++++++++++++++++++++++++-- 1 file changed, 27 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index b0b6dd2b608d..da85bbe55112 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -3406,6 +3406,32 @@ void qla24xx_nvme_ls4_iocb(struct scsi_qla_host *vha, sp->done(sp, comp_status); } +static void qla24xx_process_mbx_iocb_response(struct scsi_qla_host *vha, + struct rsp_que *rsp, struct sts_entry_24xx *pkt) +{ + struct qla_hw_data *ha = vha->hw; + srb_t *sp; + static const char func[] = "MBX-IOCB2"; + + sp = qla2x00_get_sp_from_handle(vha, func, rsp->req, pkt); + if (!sp) + return; + + if (sp->type == SRB_SCSI_CMD || + sp->type == SRB_NVME_CMD || + sp->type == SRB_TM_CMD) { + ql_log(ql_log_warn, vha, 0x509d, + "Inconsistent event entry type %d\n", sp->type); + if (IS_P3P_TYPE(ha)) + set_bit(FCOE_CTX_RESET_NEEDED, &vha->dpc_flags); + else + set_bit(ISP_ABORT_NEEDED, &vha->dpc_flags); + return; + } + + qla24xx_mbx_iocb_entry(vha, rsp->req, (struct mbx_24xx_entry *)pkt); +} + /** * qla24xx_process_response_queue() - Process response queue entries. * @vha: SCSI driver HA context @@ -3513,8 +3539,7 @@ process_err: (struct abort_entry_24xx *)pkt); break; case MBX_IOCB_TYPE: - qla24xx_mbx_iocb_entry(vha, rsp->req, - (struct mbx_24xx_entry *)pkt); + qla24xx_process_mbx_iocb_response(vha, rsp, pkt); break; case VP_CTRL_IOCB_TYPE: qla_ctrlvp_completed(vha, rsp->req, -- cgit v1.2.3 From 71957b6112cdb0b3357fbfe6d0de5de02d544a55 Mon Sep 17 00:00:00 2001 From: Stanley Chu Date: Thu, 10 Sep 2020 09:37:56 +0800 Subject: scsi: ufs: ufs-mediatek: Fix build warnings with make W=1 Fix build warnings with make W=1 as below, 1. >> drivers/scsi/ufs/ufs-mediatek.c:116:22: warning: format '%d' expects >> argument of type 'int', but argument 4 has type 'long int' 2. CC [M] drivers/scsi/ufs/ufs-mediatek.o ../drivers/scsi/ufs/ufs-mediatek.c:749: error: Cannot parse struct or union! /** is used specifically with kernel-doc tool. As a quick fix by removing dubious /** in the comment block of struct ufs_hba_variant_ops ufs_hba_mtk_vops. Link: https://lore.kernel.org/r/20200910013756.11385-1-stanley.chu@mediatek.com Signed-off-by: Stanley Chu Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-mediatek.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index 1a9133ac6efb..3ec44dfa2567 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -113,7 +113,7 @@ static void ufs_mtk_init_reset_control(struct ufs_hba *hba, { *rc = devm_reset_control_get(hba->dev, str); if (IS_ERR(*rc)) { - dev_info(hba->dev, "Failed to get reset control %s: %d\n", + dev_info(hba->dev, "Failed to get reset control %s: %ld\n", str, PTR_ERR(*rc)); *rc = NULL; } @@ -727,13 +727,13 @@ static void ufs_mtk_fixup_dev_quirks(struct ufs_hba *hba) ufshcd_fixup_dev_quirks(hba, ufs_mtk_dev_fixups); } -/** +/* * struct ufs_hba_mtk_vops - UFS MTK specific variant operations * * The variant operations configure the necessary controller and PHY * handshake during initialization. */ -static struct ufs_hba_variant_ops ufs_hba_mtk_vops = { +static const struct ufs_hba_variant_ops ufs_hba_mtk_vops = { .name = "mediatek.ufshci", .init = ufs_mtk_init, .setup_clocks = ufs_mtk_setup_clocks, -- cgit v1.2.3 From 5e48a084f4e824e1b624d3fd7ddcf53d2ba69e53 Mon Sep 17 00:00:00 2001 From: Jing Xiangfeng Date: Mon, 7 Sep 2020 16:39:49 +0800 Subject: scsi: ibmvfc: Fix error return in ibmvfc_probe() Fix to return error code PTR_ERR() from the error handling case instead of 0. Link: https://lore.kernel.org/r/20200907083949.154251-1-jingxiangfeng@huawei.com Acked-by: Tyrel Datwyler Signed-off-by: Jing Xiangfeng Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi/ibmvfc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 77f4d37d5bd6..175a165da07b 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -4928,6 +4928,7 @@ static int ibmvfc_probe(struct vio_dev *vdev, const struct vio_device_id *id) if (IS_ERR(vhost->work_thread)) { dev_err(dev, "Couldn't create kernel thread: %ld\n", PTR_ERR(vhost->work_thread)); + rc = PTR_ERR(vhost->work_thread); goto free_host_mem; } -- cgit v1.2.3 From 09fd5f0ddf327ce2b7764ecf3264f3f9230207f1 Mon Sep 17 00:00:00 2001 From: Alim Akhtar Date: Tue, 21 Jul 2020 22:50:21 +0530 Subject: scsi: ufs: Fix 'unmet direct dependencies' config warning With !CONFIG_OF and SCSI_UFS_EXYNOS selected, the below warning is given: WARNING: unmet direct dependencies detected for PHY_SAMSUNG_UFS Depends on [n]: OF [=n] && (ARCH_EXYNOS || COMPILE_TEST [=y]) Selected by [y]: - SCSI_UFS_EXYNOS [=y] && SCSI_LOWLEVEL [=y] && SCSI [=y] && SCSI_UFSHCD_PLATFORM [=y] && (ARCH_EXYNOS || COMPILE_TEST [=y]) Fix it by removing PHY_SAMSUNG_UFS dependency. Link: https://lore.kernel.org/r/20200721172021.28922-1-alim.akhtar@samsung.com Reported-by: Randy Dunlap Acked-by: Randy Dunlap Signed-off-by: Alim Akhtar Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/Kconfig | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/ufs/Kconfig b/drivers/scsi/ufs/Kconfig index f6394999b98c..dcdb4eb1f90b 100644 --- a/drivers/scsi/ufs/Kconfig +++ b/drivers/scsi/ufs/Kconfig @@ -165,7 +165,6 @@ config SCSI_UFS_BSG config SCSI_UFS_EXYNOS tristate "EXYNOS specific hooks to UFS controller platform driver" depends on SCSI_UFSHCD_PLATFORM && (ARCH_EXYNOS || COMPILE_TEST) - select PHY_SAMSUNG_UFS help This selects the EXYNOS specific additions to UFSHCD platform driver. UFS host on EXYNOS includes HCI and UNIPRO layer, and associates with -- cgit v1.2.3 From 3eedb4202d4c26c3323c91559f977013afaecf85 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Mon, 7 Sep 2020 15:45:15 +0800 Subject: scsi: qla1280: Remove set but not used variable in qla1280_done() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/qla1280.c: In function ‘qla1280_done’: drivers/scsi/qla1280.c:1244:19: warning: variable ‘lun’ set but not used [-Wunused-but-set-variable] 1244 | int bus, target, lun; | ^~~ Link: https://lore.kernel.org/r/20200907074518.2326360-2-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/qla1280.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 441a45349349..42c68bd98fa5 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -1241,7 +1241,7 @@ qla1280_done(struct scsi_qla_host *ha) { struct srb *sp; struct list_head *done_q; - int bus, target, lun; + int bus, target; struct scsi_cmnd *cmd; ENTER("qla1280_done"); @@ -1256,7 +1256,6 @@ qla1280_done(struct scsi_qla_host *ha) cmd = sp->cmd; bus = SCSI_BUS_32(cmd); target = SCSI_TCN_32(cmd); - lun = SCSI_LUN_32(cmd); switch ((CMD_RESULT(cmd) >> 16)) { case DID_RESET: -- cgit v1.2.3 From 9b0f9e59bc81298f03f3582c40b07fe61d283303 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Mon, 7 Sep 2020 15:45:16 +0800 Subject: scsi: qla1280: Remove set but not used variable in qla1280_nvram_config() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/qla1280.c: In function ‘qla1280_nvram_config’: drivers/scsi/qla1280.c:2188:36: warning: variable ‘ddma_conf’ set but not used [-Wunused-but-set-variable] 2188 | uint16_t hwrev, cfg1, cdma_conf, ddma_conf; | ^~~~~~~~~ Link: https://lore.kernel.org/r/20200907074518.2326360-3-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/qla1280.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 42c68bd98fa5..72f92733e75f 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -2184,13 +2184,12 @@ qla1280_nvram_config(struct scsi_qla_host *ha) nv->cntr_flags_1.disable_loading_risc_code; if (IS_ISP1040(ha)) { - uint16_t hwrev, cfg1, cdma_conf, ddma_conf; + uint16_t hwrev, cfg1, cdma_conf; hwrev = RD_REG_WORD(®->cfg_0) & ISP_CFG0_HWMSK; cfg1 = RD_REG_WORD(®->cfg_1) & ~(BIT_4 | BIT_5 | BIT_6); cdma_conf = RD_REG_WORD(®->cdma_cfg); - ddma_conf = RD_REG_WORD(®->ddma_cfg); /* Busted fifo, says mjacob. */ if (hwrev != ISP_CFG0_1040A) -- cgit v1.2.3 From bf70bf28bf874c65001951bb955292a37c930e49 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Mon, 7 Sep 2020 15:45:17 +0800 Subject: scsi: qla1280: Remove set but not used variable in qla1280_mailbox_command() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/qla1280.c: In function ‘qla1280_mailbox_command’: drivers/scsi/qla1280.c:2430:11: warning: variable ‘data’ set but not used [-Wunused-but-set-variable] 2430 | uint16_t data; | ^~~~ Link: https://lore.kernel.org/r/20200907074518.2326360-4-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/qla1280.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index 72f92733e75f..fe4b88aaf5cb 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -2425,7 +2425,6 @@ qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb) int cnt; uint16_t *optr, *iptr; uint16_t __iomem *mptr; - uint16_t data; DECLARE_COMPLETION_ONSTACK(wait); ENTER("qla1280_mailbox_command"); @@ -2460,7 +2459,7 @@ qla1280_mailbox_command(struct scsi_qla_host *ha, uint8_t mr, uint16_t *mb) spin_unlock_irq(ha->host->host_lock); WRT_REG_WORD(®->host_cmd, HC_SET_HOST_INT); - data = qla1280_debounce_register(®->istatus); + qla1280_debounce_register(®->istatus); wait_for_completion(&wait); del_timer_sync(&ha->mailbox_timer); -- cgit v1.2.3 From c8d67fbb60859d28d02ae431c5dd5641e3553f49 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Mon, 7 Sep 2020 15:45:18 +0800 Subject: scsi: qla1280: Remove set but not used variable in qla1280_status_entry() MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/qla1280.c: In function ‘qla1280_status_entry’: drivers/scsi/qla1280.c:3607:28: warning: variable ‘lun’ set but not used [-Wunused-but-set-variable] 3607 | unsigned int bus, target, lun; | ^~~ drivers/scsi/qla1280.c:3607:20: warning: variable ‘target’ set but not used [-Wunused-but-set-variable] 3607 | unsigned int bus, target, lun; | ^~~~~~ drivers/scsi/qla1280.c:3607:15: warning: variable ‘bus’ set but not used [-Wunused-but-set-variable] 3607 | unsigned int bus, target, lun; | ^~~ Link: https://lore.kernel.org/r/20200907074518.2326360-5-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/qla1280.c | 9 ++------- 1 file changed, 2 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/qla1280.c b/drivers/scsi/qla1280.c index fe4b88aaf5cb..545936cb3980 100644 --- a/drivers/scsi/qla1280.c +++ b/drivers/scsi/qla1280.c @@ -3601,7 +3601,6 @@ static void qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt, struct list_head *done_q) { - unsigned int bus, target, lun; int sense_sz; struct srb *sp; struct scsi_cmnd *cmd; @@ -3627,11 +3626,6 @@ qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt, cmd = sp->cmd; - /* Generate LU queue on cntrl, target, LUN */ - bus = SCSI_BUS_32(cmd); - target = SCSI_TCN_32(cmd); - lun = SCSI_LUN_32(cmd); - if (comp_status || scsi_status) { dprintk(3, "scsi: comp_status = 0x%x, scsi_status = " "0x%x, handle = 0x%x\n", comp_status, @@ -3670,7 +3664,8 @@ qla1280_status_entry(struct scsi_qla_host *ha, struct response *pkt, dprintk(2, "qla1280_status_entry: Check " "condition Sense data, b %i, t %i, " - "l %i\n", bus, target, lun); + "l %i\n", SCSI_BUS_32(cmd), SCSI_TCN_32(cmd), + SCSI_LUN_32(cmd)); if (sense_sz) qla1280_dump_buffer(2, (char *)cmd->sense_buffer, -- cgit v1.2.3 From 27216a9d85a0be1cf6e58b64c1cb626a6170c8f3 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 9 Sep 2020 16:26:27 +0800 Subject: scsi: pmcraid: Remove set but not used 'res' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/pmcraid.c: In function ‘pmcraid_abort_cmd’: drivers/scsi/pmcraid.c:2863:33: warning: variable ‘res’ set but not used [-Wunused-but-set-variable] struct pmcraid_resource_entry *res; ^ Link: https://lore.kernel.org/r/20200909082627.101984-2-yebin10@huawei.com Reported-by: Hulk Robot Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/pmcraid.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/pmcraid.c b/drivers/scsi/pmcraid.c index d99568fdf4af..cbe5fab793eb 100644 --- a/drivers/scsi/pmcraid.c +++ b/drivers/scsi/pmcraid.c @@ -2860,10 +2860,8 @@ static struct pmcraid_cmd *pmcraid_abort_cmd(struct pmcraid_cmd *cmd) { struct pmcraid_cmd *cancel_cmd; struct pmcraid_instance *pinstance; - struct pmcraid_resource_entry *res; pinstance = (struct pmcraid_instance *)cmd->drv_inst; - res = cmd->scsi_cmd->device->hostdata; cancel_cmd = pmcraid_get_free_cmd(pinstance); -- cgit v1.2.3 From 8b02fc756af69d6edbcc34b63ae4cec4503dfaa0 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 9 Sep 2020 16:26:26 +0800 Subject: scsi: gdth: Remove set but used 'cmd_index' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": drivers/scsi/gdth.c: In function ‘gdth_async_event’: drivers/scsi/gdth.c:3010:9: warning: variable ‘cmd_index’ set but not used [-Wunused-but-set-variable] int cmd_index; Link: https://lore.kernel.org/r/20200909082627.101984-1-yebin10@huawei.com Reported-by: Hulk Robot Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/gdth.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/gdth.c b/drivers/scsi/gdth.c index 7f150d52b4a6..dc0e17729acf 100644 --- a/drivers/scsi/gdth.c +++ b/drivers/scsi/gdth.c @@ -3007,7 +3007,6 @@ static char *async_cache_tab[] = { static int gdth_async_event(gdth_ha_str *ha) { gdth_cmd_str *cmdp; - int cmd_index; cmdp= ha->pccb; TRACE2(("gdth_async_event() ha %d serv %d\n", @@ -3019,7 +3018,6 @@ static int gdth_async_event(gdth_ha_str *ha) gdth_delay(0); cmdp->Service = SCREENSERVICE; cmdp->RequestBuffer = SCREEN_CMND; - cmd_index = gdth_get_cmd_index(ha); gdth_set_sema0(ha); cmdp->OpCode = GDT_READ; cmdp->BoardNode = LOCALBOARD; -- cgit v1.2.3 From 2de7649cff445ec35a6c5ee1a8e19be186d890fc Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 9 Sep 2020 16:27:16 +0800 Subject: scsi: lpfc: Remove set but not used 'qp' MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit This addresses the following gcc warning with "make W=1": not used [-Wunused-but-set-variable] struct lpfc_sli4_hdw_queue *qp; ^ Link: https://lore.kernel.org/r/20200909082716.37787-1-yebin10@huawei.com Reported-by: Hulk Robot Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen drivers/scsi/lpfc/lpfc_debugfs.c: In function ‘lpfc_debugfs_hdwqstat_data’: drivers/scsi/lpfc/lpfc_debugfs.c:1699:30: warning: variable ‘qp’ set but --- drivers/scsi/lpfc/lpfc_debugfs.c | 3 --- 1 file changed, 3 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_debugfs.c b/drivers/scsi/lpfc/lpfc_debugfs.c index d6c07eeedd69..c9a327b13e5c 100644 --- a/drivers/scsi/lpfc/lpfc_debugfs.c +++ b/drivers/scsi/lpfc/lpfc_debugfs.c @@ -1696,7 +1696,6 @@ static int lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) { struct lpfc_hba *phba = vport->phba; - struct lpfc_sli4_hdw_queue *qp; struct lpfc_hdwq_stat *c_stat; int i, j, len; uint32_t tot_xmt; @@ -1726,8 +1725,6 @@ lpfc_debugfs_hdwqstat_data(struct lpfc_vport *vport, char *buf, int size) goto buffer_done; for (i = 0; i < phba->cfg_hdw_queue; i++) { - qp = &phba->sli4_hba.hdwq[i]; - tot_rcv = 0; tot_xmt = 0; tot_cmpl = 0; -- cgit v1.2.3 From 247f994459383a15486b6a78b669b6fc088c7543 Mon Sep 17 00:00:00 2001 From: Adrian Hunter Date: Thu, 27 Aug 2020 10:20:30 +0300 Subject: scsi: ufs-pci: Add LTR support for Intel controllers Intel host controllers support the setting of latency tolerance. Accordingly, implement the PM QoS ->set_latency_tolerance() callback. The raw register values are also exposed via debugfs. Link: https://lore.kernel.org/r/20200827072030.24655-1-adrian.hunter@intel.com Fixes: 8c09d7527697 ("scsi: ufshdc-pci: Add Intel PCI IDs for EHL") Fixes: 1ab27c9cf8b6 ("ufs: Add support for clock gating") Reviewed-by: Avri Altman Acked-by: Stanley Chu Signed-off-by: Adrian Hunter Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd-pci.c | 127 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 125 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd-pci.c b/drivers/scsi/ufs/ufshcd-pci.c index 5a95a7bfbab0..df3a564c3e33 100644 --- a/drivers/scsi/ufs/ufshcd-pci.c +++ b/drivers/scsi/ufs/ufshcd-pci.c @@ -13,6 +13,14 @@ #include "ufshcd.h" #include #include +#include +#include + +struct intel_host { + u32 active_ltr; + u32 idle_ltr; + struct dentry *debugfs_root; +}; static int ufs_intel_disable_lcc(struct ufs_hba *hba) { @@ -44,20 +52,134 @@ static int ufs_intel_link_startup_notify(struct ufs_hba *hba, return err; } +#define INTEL_ACTIVELTR 0x804 +#define INTEL_IDLELTR 0x808 + +#define INTEL_LTR_REQ BIT(15) +#define INTEL_LTR_SCALE_MASK GENMASK(11, 10) +#define INTEL_LTR_SCALE_1US (2 << 10) +#define INTEL_LTR_SCALE_32US (3 << 10) +#define INTEL_LTR_VALUE_MASK GENMASK(9, 0) + +static void intel_cache_ltr(struct ufs_hba *hba) +{ + struct intel_host *host = ufshcd_get_variant(hba); + + host->active_ltr = readl(hba->mmio_base + INTEL_ACTIVELTR); + host->idle_ltr = readl(hba->mmio_base + INTEL_IDLELTR); +} + +static void intel_ltr_set(struct device *dev, s32 val) +{ + struct ufs_hba *hba = dev_get_drvdata(dev); + struct intel_host *host = ufshcd_get_variant(hba); + u32 ltr; + + pm_runtime_get_sync(dev); + + /* + * Program latency tolerance (LTR) accordingly what has been asked + * by the PM QoS layer or disable it in case we were passed + * negative value or PM_QOS_LATENCY_ANY. + */ + ltr = readl(hba->mmio_base + INTEL_ACTIVELTR); + + if (val == PM_QOS_LATENCY_ANY || val < 0) { + ltr &= ~INTEL_LTR_REQ; + } else { + ltr |= INTEL_LTR_REQ; + ltr &= ~INTEL_LTR_SCALE_MASK; + ltr &= ~INTEL_LTR_VALUE_MASK; + + if (val > INTEL_LTR_VALUE_MASK) { + val >>= 5; + if (val > INTEL_LTR_VALUE_MASK) + val = INTEL_LTR_VALUE_MASK; + ltr |= INTEL_LTR_SCALE_32US | val; + } else { + ltr |= INTEL_LTR_SCALE_1US | val; + } + } + + if (ltr == host->active_ltr) + goto out; + + writel(ltr, hba->mmio_base + INTEL_ACTIVELTR); + writel(ltr, hba->mmio_base + INTEL_IDLELTR); + + /* Cache the values into intel_host structure */ + intel_cache_ltr(hba); +out: + pm_runtime_put(dev); +} + +static void intel_ltr_expose(struct device *dev) +{ + dev->power.set_latency_tolerance = intel_ltr_set; + dev_pm_qos_expose_latency_tolerance(dev); +} + +static void intel_ltr_hide(struct device *dev) +{ + dev_pm_qos_hide_latency_tolerance(dev); + dev->power.set_latency_tolerance = NULL; +} + +static void intel_add_debugfs(struct ufs_hba *hba) +{ + struct dentry *dir = debugfs_create_dir(dev_name(hba->dev), NULL); + struct intel_host *host = ufshcd_get_variant(hba); + + intel_cache_ltr(hba); + + host->debugfs_root = dir; + debugfs_create_x32("active_ltr", 0444, dir, &host->active_ltr); + debugfs_create_x32("idle_ltr", 0444, dir, &host->idle_ltr); +} + +static void intel_remove_debugfs(struct ufs_hba *hba) +{ + struct intel_host *host = ufshcd_get_variant(hba); + + debugfs_remove_recursive(host->debugfs_root); +} + +static int ufs_intel_common_init(struct ufs_hba *hba) +{ + struct intel_host *host; + + host = devm_kzalloc(hba->dev, sizeof(*host), GFP_KERNEL); + if (!host) + return -ENOMEM; + ufshcd_set_variant(hba, host); + intel_ltr_expose(hba->dev); + intel_add_debugfs(hba); + return 0; +} + +static void ufs_intel_common_exit(struct ufs_hba *hba) +{ + intel_remove_debugfs(hba); + intel_ltr_hide(hba->dev); +} + static int ufs_intel_ehl_init(struct ufs_hba *hba) { hba->quirks |= UFSHCD_QUIRK_BROKEN_AUTO_HIBERN8; - return 0; + return ufs_intel_common_init(hba); } static struct ufs_hba_variant_ops ufs_intel_cnl_hba_vops = { .name = "intel-pci", + .init = ufs_intel_common_init, + .exit = ufs_intel_common_exit, .link_startup_notify = ufs_intel_link_startup_notify, }; static struct ufs_hba_variant_ops ufs_intel_ehl_hba_vops = { .name = "intel-pci", .init = ufs_intel_ehl_init, + .exit = ufs_intel_common_exit, .link_startup_notify = ufs_intel_link_startup_notify, }; @@ -162,6 +284,8 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) return err; } + pci_set_drvdata(pdev, hba); + hba->vops = (struct ufs_hba_variant_ops *)id->driver_data; err = ufshcd_init(hba, mmio_base, pdev->irq); @@ -171,7 +295,6 @@ ufshcd_pci_probe(struct pci_dev *pdev, const struct pci_device_id *id) return err; } - pci_set_drvdata(pdev, hba); pm_runtime_put_noidle(&pdev->dev); pm_runtime_allow(&pdev->dev); -- cgit v1.2.3 From 34eb5ccf35daea082b6bc3857f82f23155fb266f Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Fri, 11 Sep 2020 17:10:21 +0800 Subject: scsi: qla2xxx: Remove unneeded variable 'rval' This addresses the following coccinelle warning: drivers/scsi/qla2xxx/qla_init.c:7112:5-9: Unneeded variable: "rval". Return "QLA_SUCCESS" on line 7115 Link: https://lore.kernel.org/r/20200911091021.2937708-1-yanaijie@huawei.com Reported-by: Hulk Robot Reviewed-by: Himanshu Madhani Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_init.c | 5 ++--- 1 file changed, 2 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 136010841495..83a541d5b523 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -7119,10 +7119,9 @@ qla24xx_reset_adapter(scsi_qla_host_t *vha) unsigned long flags = 0; struct qla_hw_data *ha = vha->hw; struct device_reg_24xx __iomem *reg = &ha->iobase->isp24; - int rval = QLA_SUCCESS; if (IS_P3P_TYPE(ha)) - return rval; + return QLA_SUCCESS; vha->flags.online = 0; ha->isp_ops->disable_intrs(ha); @@ -7137,7 +7136,7 @@ qla24xx_reset_adapter(scsi_qla_host_t *vha) if (IS_NOPOLLING_TYPE(ha)) ha->isp_ops->enable_intrs(ha); - return rval; + return QLA_SUCCESS; } /* On sparc systems, obtain port and node WWN from firmware -- cgit v1.2.3 From 8d4089cdc313f3ff96ed5ae800f0a1a5d7f3a47e Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Fri, 11 Sep 2020 17:10:31 +0800 Subject: scsi: sym53c8xx_2: Remove unneeded semicolon This addresses the following coccinelle warning: drivers/scsi/sym53c8xx_2/sym_fw.c:372:3-4: Unneeded semicolon drivers/scsi/sym53c8xx_2/sym_fw.c:480:3-4: Unneeded semicolon drivers/scsi/sym53c8xx_2/sym_fw.c:536:2-3: Unneeded semicolon Link: https://lore.kernel.org/r/20200911091031.2937834-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/sym53c8xx_2/sym_fw.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/sym53c8xx_2/sym_fw.c b/drivers/scsi/sym53c8xx_2/sym_fw.c index 6d7651a7847e..dc574039ddae 100644 --- a/drivers/scsi/sym53c8xx_2/sym_fw.c +++ b/drivers/scsi/sym53c8xx_2/sym_fw.c @@ -369,7 +369,7 @@ void sym_fw_bind_script(struct sym_hcb *np, u32 *start, int len) sym_name(np), (int) (cur-start)); ++cur; continue; - }; + } /* * We use the bogus value 0xf00ff00f ;-) @@ -477,7 +477,7 @@ void sym_fw_bind_script(struct sym_hcb *np, u32 *start, int len) default: relocs = 0; break; - }; + } /* * Scriptify:) the opcode. @@ -533,5 +533,5 @@ void sym_fw_bind_script(struct sym_hcb *np, u32 *start, int len) *cur++ = cpu_to_scr(new); } - }; + } } -- cgit v1.2.3 From 94e476520e1e4e540236021c9e32a5420cabf3c3 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Fri, 11 Sep 2020 17:10:49 +0800 Subject: scsi: nsp32: Remove unneeded semicolon This addresses the following coccinelle warning: drivers/scsi/nsp32.c:1250:4-5: Unneeded semicolon drivers/scsi/nsp32.c:1842:2-3: Unneeded semicolon Link: https://lore.kernel.org/r/20200911091049.2938158-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/nsp32.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/nsp32.c b/drivers/scsi/nsp32.c index b6e04d14292d..da814c2da16d 100644 --- a/drivers/scsi/nsp32.c +++ b/drivers/scsi/nsp32.c @@ -1247,7 +1247,7 @@ static irqreturn_t do_nsp32_isr(int irq, void *dev_id) * ---> AutoSCSI with MSGOUTreg is processed. */ data->msgout_len = 0; - }; + } nsp32_dbg(NSP32_DEBUG_INTR, "MsgOut phase processed"); } @@ -1839,7 +1839,7 @@ static void nsp32_msgout_occur(struct scsi_cmnd *SCpnt) nsp32_dbg(NSP32_DEBUG_MSGOUTOCCUR, "bus: 0x%x\n", nsp32_read1(base, SCSI_BUS_MONITOR)); - }; + } data->msgout_len = 0; -- cgit v1.2.3 From bff8b14b097433c46f142ea8cd8deb910a66d8fc Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Fri, 11 Sep 2020 17:10:57 +0800 Subject: scsi: fnic: Remove unneeded semicolon This addresses the following coccinelle warning: drivers/scsi/fnic/fnic_main.c:446:2-3: Unneeded semicolon Link: https://lore.kernel.org/r/20200911091057.2938685-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_main.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/fnic/fnic_main.c b/drivers/scsi/fnic/fnic_main.c index 8258348857e2..5f8a7ef8f6a8 100644 --- a/drivers/scsi/fnic/fnic_main.c +++ b/drivers/scsi/fnic/fnic_main.c @@ -443,7 +443,7 @@ static void fnic_notify_timer_start(struct fnic *fnic) default: /* Using intr for notification for INTx/MSI-X */ break; - }; + } } static int fnic_dev_wait(struct vnic_dev *vdev, -- cgit v1.2.3 From a9e81c2922bfc4cfe04e33fcbc49ef21e367d7de Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Wed, 9 Sep 2020 21:54:32 +0800 Subject: scsi: libfc: Fix passing zero to 'PTR_ERR' warning drivers/scsi/libfc/fc_disc.c:304 fc_disc_error() warn: passing zero to 'PTR_ERR' fp may be NULL in fc_disc_error(), use PTR_ERR_OR_ZERO to handle this. Link: https://lore.kernel.org/r/20200909135432.36772-1-yuehaibing@huawei.com Signed-off-by: YueHaibing Signed-off-by: Martin K. Petersen --- drivers/scsi/libfc/fc_disc.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/libfc/fc_disc.c b/drivers/scsi/libfc/fc_disc.c index e67abb184a8a..942fc60f7c21 100644 --- a/drivers/scsi/libfc/fc_disc.c +++ b/drivers/scsi/libfc/fc_disc.c @@ -301,8 +301,8 @@ static void fc_disc_error(struct fc_disc *disc, struct fc_frame *fp) struct fc_lport *lport = fc_disc_lport(disc); unsigned long delay = 0; - FC_DISC_DBG(disc, "Error %ld, retries %d/%d\n", - PTR_ERR(fp), disc->retry_count, + FC_DISC_DBG(disc, "Error %d, retries %d/%d\n", + PTR_ERR_OR_ZERO(fp), disc->retry_count, FC_DISC_RETRY_LIMIT); if (!fp || PTR_ERR(fp) == -FC_EX_TIMEOUT) { -- cgit v1.2.3 From 3f4fee002b009ce862067cf22e7f530deaa0b0a7 Mon Sep 17 00:00:00 2001 From: YueHaibing Date: Wed, 9 Sep 2020 21:57:11 +0800 Subject: scsi: aic94xx: Remove unused inline function There is no caller in tree. Remove it. Link: https://lore.kernel.org/r/20200909135711.35728-1-yuehaibing@huawei.com Signed-off-by: YueHaibing Signed-off-by: Martin K. Petersen --- drivers/scsi/aic94xx/aic94xx.h | 8 -------- 1 file changed, 8 deletions(-) diff --git a/drivers/scsi/aic94xx/aic94xx.h b/drivers/scsi/aic94xx/aic94xx.h index c23bbb609126..98978bc199ff 100644 --- a/drivers/scsi/aic94xx/aic94xx.h +++ b/drivers/scsi/aic94xx/aic94xx.h @@ -42,14 +42,6 @@ extern struct kmem_cache *asd_dma_token_cache; extern struct kmem_cache *asd_ascb_cache; -static inline void asd_stringify_sas_addr(char *p, const u8 *sas_addr) -{ - int i; - for (i = 0; i < SAS_ADDR_SIZE; i++, p += 2) - snprintf(p, 3, "%02X", sas_addr[i]); - *p = '\0'; -} - struct asd_ha_struct; struct asd_ascb; -- cgit v1.2.3 From addf1372961523cc8cb7ab4ee26d5e1373bf64a0 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Thu, 10 Sep 2020 21:49:15 +0200 Subject: scsi: zfcp: Use list_first_entry_or_null() in zfcp_erp_thread() Use the right helper to avoid poking around in the list's internals. Link: https://lore.kernel.org/r/ed669555c73aab95b29444c10066f492c0c43391.1599765652.git.bblock@linux.ibm.com Reviewed-by: Steffen Maier Reviewed-by: Benjamin Block Signed-off-by: Julian Wiedmann Signed-off-by: Benjamin Block Signed-off-by: Martin K. Petersen --- drivers/s390/scsi/zfcp_erp.c | 8 +++----- 1 file changed, 3 insertions(+), 5 deletions(-) diff --git a/drivers/s390/scsi/zfcp_erp.c b/drivers/s390/scsi/zfcp_erp.c index 59e662df5774..78d52a4c55f5 100644 --- a/drivers/s390/scsi/zfcp_erp.c +++ b/drivers/s390/scsi/zfcp_erp.c @@ -1607,7 +1607,6 @@ check_target: static int zfcp_erp_thread(void *data) { struct zfcp_adapter *adapter = (struct zfcp_adapter *) data; - struct list_head *next; struct zfcp_erp_action *act; unsigned long flags; @@ -1620,12 +1619,11 @@ static int zfcp_erp_thread(void *data) break; write_lock_irqsave(&adapter->erp_lock, flags); - next = adapter->erp_ready_head.next; + act = list_first_entry_or_null(&adapter->erp_ready_head, + struct zfcp_erp_action, list); write_unlock_irqrestore(&adapter->erp_lock, flags); - if (next != &adapter->erp_ready_head) { - act = list_entry(next, struct zfcp_erp_action, list); - + if (act) { /* there is more to come after dismission, no notify */ if (zfcp_erp_strategy(act) != ZFCP_ERP_DISMISSED) zfcp_erp_wakeup(adapter); -- cgit v1.2.3 From d251193d17321d44f96b78d9bb4c8b8ea6786e72 Mon Sep 17 00:00:00 2001 From: Julian Wiedmann Date: Thu, 10 Sep 2020 21:49:16 +0200 Subject: scsi: zfcp: Clarify access to erp_action in zfcp_fsf_req_complete() While reviewing commit 936e6b85da04 ("scsi: zfcp: Fix panic on ERP timeout for previously dismissed ERP action"), I stumbled over zfcp_fsf_req_complete() and wondered whether it has similar issues wrt concurrent modification of req->erp_action by zfcp_erp_strategy_check_fsfreq(). But a closer look shows that both its two callers [zfcp_fsf_reqid_check(), zfcp_fsf_req_dismiss_all()] remove the request from the adapter's req_list under the req_list's lock. Hence we can trust that if zfcp_erp_strategy_check_fsfreq() concurrently looks up the corresponding req_id, it won't find this request and is thus unable to modify it while it's being processed by zfcp_fsf_req_complete(). Add a code comment that hopefully makes this easier for future readers, and condense the two accesses to ->erp_action that made me trip over this code path in the first place. Link: https://lore.kernel.org/r/c500eac301fcbba5af942bbd200f2d6b14e46994.1599765652.git.bblock@linux.ibm.com Reviewed-by: Steffen Maier Reviewed-by: Benjamin Block Signed-off-by: Julian Wiedmann Signed-off-by: Benjamin Block Signed-off-by: Martin K. Petersen --- drivers/s390/scsi/zfcp_fsf.c | 10 ++++++++-- 1 file changed, 8 insertions(+), 2 deletions(-) diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c index 140186fe1d1e..6cb963a06777 100644 --- a/drivers/s390/scsi/zfcp_fsf.c +++ b/drivers/s390/scsi/zfcp_fsf.c @@ -426,9 +426,14 @@ static void zfcp_fsf_protstatus_eval(struct zfcp_fsf_req *req) * or it has been dismissed due to a queue shutdown, this function * is called to process the completion status and trigger further * events related to the FSF request. + * Caller must ensure that the request has been removed from + * adapter->req_list, to protect against concurrent modification + * by zfcp_erp_strategy_check_fsfreq(). */ static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) { + struct zfcp_erp_action *erp_action; + if (unlikely(zfcp_fsf_req_is_status_read_buffer(req))) { zfcp_fsf_status_read_handler(req); return; @@ -439,8 +444,9 @@ static void zfcp_fsf_req_complete(struct zfcp_fsf_req *req) zfcp_fsf_fsfstatus_eval(req); req->handler(req); - if (req->erp_action) - zfcp_erp_notify(req->erp_action, 0); + erp_action = req->erp_action; + if (erp_action) + zfcp_erp_notify(erp_action, 0); if (likely(req->status & ZFCP_STATUS_FSFREQ_CLEANUP)) zfcp_fsf_req_free(req); -- cgit v1.2.3 From 1c370903d12d6787db7c7509994e7b5d33daa2c1 Mon Sep 17 00:00:00 2001 From: Jing Xiangfeng Date: Mon, 14 Sep 2020 10:32:07 +0800 Subject: scsi: target: Remove redundant assignment to variable 'ret' The variable ret has been initialized with a value '0'. The assignment in switch-case is redundant. Remove it. Link: https://lore.kernel.org/r/20200914023207.113792-1-jingxiangfeng@huawei.com Reviewed-by: Maurizio Lombardi Signed-off-by: Jing Xiangfeng Signed-off-by: Martin K. Petersen --- drivers/target/iscsi/iscsi_target.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/target/iscsi/iscsi_target.c b/drivers/target/iscsi/iscsi_target.c index 2ec778e97b1b..833f0436dd8b 100644 --- a/drivers/target/iscsi/iscsi_target.c +++ b/drivers/target/iscsi/iscsi_target.c @@ -4529,7 +4529,6 @@ int iscsit_logout_post_handler( iscsit_logout_post_handler_closesession(conn); break; } - ret = 0; break; case ISCSI_LOGOUT_REASON_CLOSE_CONNECTION: if (conn->cid == cmd->logout_cid) { @@ -4540,7 +4539,6 @@ int iscsit_logout_post_handler( iscsit_logout_post_handler_samecid(conn); break; } - ret = 0; } else { switch (cmd->logout_response) { case ISCSI_LOGOUT_SUCCESS: -- cgit v1.2.3 From 62aa501dc9dd844b311133b90ddea6d3729fceec Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Tue, 15 Sep 2020 16:39:48 +0800 Subject: scsi: megaraid: Make smp_affinity_enable static This addresses the following sparse warning: drivers/scsi/megaraid/megaraid_sas_base.c:80:5: warning: symbol 'smp_affinity_enable' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200915083948.2826598-1-yanaijie@huawei.com Reported-by: Hulk Robot Reviewed-by: Damien Le Moal Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/megaraid/megaraid_sas_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/megaraid/megaraid_sas_base.c b/drivers/scsi/megaraid/megaraid_sas_base.c index 861f7140f52e..38114912a4b2 100644 --- a/drivers/scsi/megaraid/megaraid_sas_base.c +++ b/drivers/scsi/megaraid/megaraid_sas_base.c @@ -77,7 +77,7 @@ unsigned int resetwaittime = MEGASAS_RESET_WAIT_TIME; module_param(resetwaittime, int, 0444); MODULE_PARM_DESC(resetwaittime, "Wait time in (1-180s) after I/O timeout before resetting adapter. Default: 180s"); -int smp_affinity_enable = 1; +static int smp_affinity_enable = 1; module_param(smp_affinity_enable, int, 0444); MODULE_PARM_DESC(smp_affinity_enable, "SMP affinity feature enable/disable Default: enable(1)"); -- cgit v1.2.3 From f38c43a0e9007e1f21a47a199643a16666902928 Mon Sep 17 00:00:00 2001 From: Sreekanth Reddy Date: Fri, 14 Aug 2020 13:04:26 +0000 Subject: scsi: mpt3sas: Detect tampered Aero and Sea adapters The driver will throw an error message when a tampered type controller is detected. The intent is to avoid interacting with any firmware which is not secured/signed by Broadcom. Any tampering on firmware component will be detected by hardware and it will be communicated to the driver to avoid any further interaction with that component. [mkp: switched back to dev_err] Link: https://lore.kernel.org/r/20200814130426.2741171-1-sreekanth.reddy@broadcom.com Signed-off-by: Sreekanth Reddy Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_scsih.c | 121 ++++++++++++++++++++++++++++++----- 1 file changed, 105 insertions(+), 16 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_scsih.c b/drivers/scsi/mpt3sas/mpt3sas_scsih.c index 6fe931b14095..db9c816e2ed4 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_scsih.c +++ b/drivers/scsi/mpt3sas/mpt3sas_scsih.c @@ -10091,6 +10091,34 @@ _scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc) mutex_unlock(&ioc->scsih_cmds.mutex); } +/** + * _scsih_get_shost_and_ioc - get shost and ioc + * and verify whether they are NULL or not + * @pdev: PCI device struct + * @shost: address of scsi host pointer + * @ioc: address of HBA adapter pointer + * + * Return zero if *shost and *ioc are not NULL otherwise return error number. + */ +static int +_scsih_get_shost_and_ioc(struct pci_dev *pdev, + struct Scsi_Host **shost, struct MPT3SAS_ADAPTER **ioc) +{ + *shost = pci_get_drvdata(pdev); + if (*shost == NULL) { + dev_err(&pdev->dev, "pdev's driver data is null\n"); + return -ENXIO; + } + + *ioc = shost_priv(*shost); + if (*ioc == NULL) { + dev_err(&pdev->dev, "shost's private data is null\n"); + return -ENXIO; + } + + return 0; +} + /** * scsih_remove - detach and remove add host * @pdev: PCI device struct @@ -10099,8 +10127,8 @@ _scsih_ir_shutdown(struct MPT3SAS_ADAPTER *ioc) */ static void scsih_remove(struct pci_dev *pdev) { - struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; struct _sas_port *mpt3sas_port, *next_port; struct _raid_device *raid_device, *next; struct MPT3SAS_TARGET *sas_target_priv_data; @@ -10109,6 +10137,9 @@ static void scsih_remove(struct pci_dev *pdev) unsigned long flags; Mpi2ConfigReply_t mpi_reply; + if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc)) + return; + ioc->remove_host = 1; if (!pci_device_is_present(pdev)) @@ -10188,12 +10219,15 @@ static void scsih_remove(struct pci_dev *pdev) static void scsih_shutdown(struct pci_dev *pdev) { - struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; struct workqueue_struct *wq; unsigned long flags; Mpi2ConfigReply_t mpi_reply; + if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc)) + return; + ioc->remove_host = 1; if (!pci_device_is_present(pdev)) @@ -10763,6 +10797,10 @@ _scsih_determine_hba_mpi_version(struct pci_dev *pdev) case MPI26_MFGPAGE_DEVID_HARD_SEC_3916: case MPI26_MFGPAGE_DEVID_CFG_SEC_3816: case MPI26_MFGPAGE_DEVID_HARD_SEC_3816: + case MPI26_MFGPAGE_DEVID_INVALID0_3916: + case MPI26_MFGPAGE_DEVID_INVALID1_3916: + case MPI26_MFGPAGE_DEVID_INVALID0_3816: + case MPI26_MFGPAGE_DEVID_INVALID1_3816: return MPI26_VERSION; } return 0; @@ -10852,6 +10890,20 @@ _scsih_probe(struct pci_dev *pdev, const struct pci_device_id *id) case MPI26_ATLAS_PCIe_SWITCH_DEVID: ioc->is_gen35_ioc = 1; break; + case MPI26_MFGPAGE_DEVID_INVALID0_3816: + case MPI26_MFGPAGE_DEVID_INVALID0_3916: + dev_err(&pdev->dev, + "HBA with DeviceId 0x%04x, sub VendorId 0x%04x, sub DeviceId 0x%04x is Invalid", + pdev->device, pdev->subsystem_vendor, + pdev->subsystem_device); + return 1; + case MPI26_MFGPAGE_DEVID_INVALID1_3816: + case MPI26_MFGPAGE_DEVID_INVALID1_3916: + dev_err(&pdev->dev, + "HBA with DeviceId 0x%04x, sub VendorId 0x%04x, sub DeviceId 0x%04x is Tampered", + pdev->device, pdev->subsystem_vendor, + pdev->subsystem_device); + return 1; case MPI26_MFGPAGE_DEVID_CFG_SEC_3816: case MPI26_MFGPAGE_DEVID_CFG_SEC_3916: dev_info(&pdev->dev, @@ -11043,9 +11095,14 @@ out_add_shost_fail: static int scsih_suspend(struct pci_dev *pdev, pm_message_t state) { - struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; pci_power_t device_state; + int rc; + + rc = _scsih_get_shost_and_ioc(pdev, &shost, &ioc); + if (rc) + return rc; mpt3sas_base_stop_watchdog(ioc); flush_scheduled_work(); @@ -11070,11 +11127,15 @@ scsih_suspend(struct pci_dev *pdev, pm_message_t state) static int scsih_resume(struct pci_dev *pdev) { - struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; pci_power_t device_state = pdev->current_state; int r; + r = _scsih_get_shost_and_ioc(pdev, &shost, &ioc); + if (r) + return r; + ioc_info(ioc, "pdev=0x%p, slot=%s, previous operating state [D%d]\n", pdev, pci_name(pdev), device_state); @@ -11105,8 +11166,11 @@ scsih_resume(struct pci_dev *pdev) static pci_ers_result_t scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) { - struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; + + if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc)) + return PCI_ERS_RESULT_DISCONNECT; ioc_info(ioc, "PCI error: detected callback, state(%d)!!\n", state); @@ -11141,10 +11205,13 @@ scsih_pci_error_detected(struct pci_dev *pdev, pci_channel_state_t state) static pci_ers_result_t scsih_pci_slot_reset(struct pci_dev *pdev) { - struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; int rc; + if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc)) + return PCI_ERS_RESULT_DISCONNECT; + ioc_info(ioc, "PCI error: slot reset callback!!\n"); ioc->pci_error_recovery = 0; @@ -11177,8 +11244,11 @@ scsih_pci_slot_reset(struct pci_dev *pdev) static void scsih_pci_resume(struct pci_dev *pdev) { - struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; + + if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc)) + return; ioc_info(ioc, "PCI error: resume callback!!\n"); @@ -11193,8 +11263,11 @@ scsih_pci_resume(struct pci_dev *pdev) static pci_ers_result_t scsih_pci_mmio_enabled(struct pci_dev *pdev) { - struct Scsi_Host *shost = pci_get_drvdata(pdev); - struct MPT3SAS_ADAPTER *ioc = shost_priv(shost); + struct Scsi_Host *shost; + struct MPT3SAS_ADAPTER *ioc; + + if (_scsih_get_shost_and_ioc(pdev, &shost, &ioc)) + return PCI_ERS_RESULT_DISCONNECT; ioc_info(ioc, "PCI error: mmio enabled callback!!\n"); @@ -11342,6 +11415,14 @@ static const struct pci_device_id mpt3sas_pci_table[] = { { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_HARD_SEC_3916, PCI_ANY_ID, PCI_ANY_ID }, + /* + * Aero SI –> 0x00E0 Invalid, 0x00E3 Tampered + */ + { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID0_3916, + PCI_ANY_ID, PCI_ANY_ID }, + { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID1_3916, + PCI_ANY_ID, PCI_ANY_ID }, + /* Atlas PCIe Switch Management Port */ { MPI2_MFGPAGE_VENDORID_LSI, MPI26_ATLAS_PCIe_SWITCH_DEVID, PCI_ANY_ID, PCI_ANY_ID }, @@ -11354,6 +11435,14 @@ static const struct pci_device_id mpt3sas_pci_table[] = { { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_HARD_SEC_3816, PCI_ANY_ID, PCI_ANY_ID }, + /* + * Sea SI –> 0x00E4 Invalid, 0x00E7 Tampered + */ + { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID0_3816, + PCI_ANY_ID, PCI_ANY_ID }, + { MPI2_MFGPAGE_VENDORID_LSI, MPI26_MFGPAGE_DEVID_INVALID1_3816, + PCI_ANY_ID, PCI_ANY_ID }, + {0} /* Terminating entry */ }; MODULE_DEVICE_TABLE(pci, mpt3sas_pci_table); -- cgit v1.2.3 From 45181eab8ba79ed7a41b549f00500c0093828521 Mon Sep 17 00:00:00 2001 From: Tomas Henzl Date: Thu, 10 Sep 2020 16:21:26 +0200 Subject: scsi: mpt3sas: Fix sync irqs _base_process_reply_queue() called from _base_interrupt() may schedule a new irq poll. Fix this by calling synchronize_irq() first. Also ensure that enable_irq() is called only when necessary to avoid "Unbalanced enable for IRQ..." errors. Link: https://lore.kernel.org/r/20200910142126.8147-1-thenzl@redhat.com Fixes: 320e77acb327 ("scsi: mpt3sas: Irq poll to avoid CPU hard lockups") Acked-by: Sreekanth Reddy Signed-off-by: Tomas Henzl Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.c | 14 +++++++++----- 1 file changed, 9 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index 24dd90a72a80..e08ad13714d4 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -1809,18 +1809,22 @@ mpt3sas_base_sync_reply_irqs(struct MPT3SAS_ADAPTER *ioc, u8 poll) /* TMs are on msix_index == 0 */ if (reply_q->msix_index == 0) continue; + synchronize_irq(pci_irq_vector(ioc->pdev, reply_q->msix_index)); if (reply_q->irq_poll_scheduled) { /* Calling irq_poll_disable will wait for any pending * callbacks to have completed. */ irq_poll_disable(&reply_q->irqpoll); irq_poll_enable(&reply_q->irqpoll); - reply_q->irq_poll_scheduled = false; - reply_q->irq_line_enable = true; - enable_irq(reply_q->os_irq); - continue; + /* check how the scheduled poll has ended, + * clean up only if necessary + */ + if (reply_q->irq_poll_scheduled) { + reply_q->irq_poll_scheduled = false; + reply_q->irq_line_enable = true; + enable_irq(reply_q->os_irq); + } } - synchronize_irq(pci_irq_vector(ioc->pdev, reply_q->msix_index)); } if (poll) _base_process_reply_queue(reply_q); -- cgit v1.2.3 From 3d49f7426e6c4e9c41d0aa88f0a76616912a383e Mon Sep 17 00:00:00 2001 From: Tomas Henzl Date: Fri, 11 Sep 2020 20:00:57 +0200 Subject: scsi: mpt3sas: A small correction in _base_process_reply_queue There is no need to compute modulo. A simple comparison is good enough. Link: https://lore.kernel.org/r/20200911180057.14633-1-thenzl@redhat.com Acked-by: sreekanth reddy Signed-off-by: Tomas Henzl Signed-off-by: Martin K. Petersen --- drivers/scsi/mpt3sas/mpt3sas_base.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/mpt3sas/mpt3sas_base.c b/drivers/scsi/mpt3sas/mpt3sas_base.c index e08ad13714d4..b096917fc314 100644 --- a/drivers/scsi/mpt3sas/mpt3sas_base.c +++ b/drivers/scsi/mpt3sas/mpt3sas_base.c @@ -1626,7 +1626,7 @@ _base_process_reply_queue(struct adapter_reply_queue *reply_q) * So that FW can find enough entries to post the Reply * Descriptors in the reply descriptor post queue. */ - if (!base_mod64(completed_cmds, ioc->thresh_hold)) { + if (completed_cmds >= ioc->thresh_hold) { if (ioc->combined_reply_queue) { writel(reply_q->reply_post_host_index | ((msix_index & 7) << -- cgit v1.2.3 From 782e2efb749f617209363b1ec1dd5cfc41a427e9 Mon Sep 17 00:00:00 2001 From: Daejun Park Date: Wed, 2 Sep 2020 11:58:52 +0900 Subject: scsi: ufs: Fix NOP OUT timeout value Boot occasionally fails with some Samsung low-power UFS devices. The reason is that these devices have a little bit higher latency for NOP OUT responses. This causes boot to fail because the NOP OUT command is issued during initialization to check whether the device transport protocol is ready or not. Increase NOP_OUT_TIMEOUT value from 30 to 50ms. Link: https://lore.kernel.org/r/231786897.01599016081767.JavaMail.epsvc@epcpadp2 Acked-by: Avri Altman Signed-off-by: Daejun Park Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd.c b/drivers/scsi/ufs/ufshcd.c index 1d8134e11da8..47c544d4ad85 100644 --- a/drivers/scsi/ufs/ufshcd.c +++ b/drivers/scsi/ufs/ufshcd.c @@ -36,8 +36,8 @@ /* NOP OUT retries waiting for NOP IN response */ #define NOP_OUT_RETRIES 10 -/* Timeout after 30 msecs if NOP OUT hangs without response */ -#define NOP_OUT_TIMEOUT 30 /* msecs */ +/* Timeout after 50 msecs if NOP OUT hangs without response */ +#define NOP_OUT_TIMEOUT 50 /* msecs */ /* Query request retries */ #define QUERY_REQ_RETRIES 3 -- cgit v1.2.3 From 6d70cb343484e626266b82451facad30e28b5e9f Mon Sep 17 00:00:00 2001 From: Xiongfeng Wang Date: Thu, 3 Sep 2020 19:29:33 +0800 Subject: scsi: target: tcmu: Add missing newline when printing parameters The tcmu 'global_max_data_area_mb' parameter in sysfs is missing a newline. Add it. Link: https://lore.kernel.org/r/1599132573-33818-1-git-send-email-wangxiongfeng2@huawei.com Signed-off-by: Xiongfeng Wang Signed-off-by: Martin K. Petersen --- drivers/target/target_core_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 9b7592350502..9775670351c6 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -242,7 +242,7 @@ static int tcmu_set_global_max_data_area(const char *str, static int tcmu_get_global_max_data_area(char *buffer, const struct kernel_param *kp) { - return sprintf(buffer, "%d", TCMU_BLOCKS_TO_MBS(tcmu_global_max_blocks)); + return sprintf(buffer, "%d\n", TCMU_BLOCKS_TO_MBS(tcmu_global_max_blocks)); } static const struct kernel_param_ops tcmu_global_max_data_area_op = { -- cgit v1.2.3 From 342c81eeaaf06ae59e043427bd9d71da42eda163 Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Thu, 10 Sep 2020 16:48:41 +0900 Subject: scsi: core: Clean up scsi_noretry_cmd() No need for else after return. Link: https://lore.kernel.org/r/20200910074843.217661-2-damien.lemoal@wdc.com Reviewed-by: Himanshu Madhani Reviewed-by: Johannes Thumshirn Signed-off-by: Damien Le Moal Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_error.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 927b1e641842..5f3726abed78 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -1755,8 +1755,8 @@ check_type: if (scmd->request->cmd_flags & REQ_FAILFAST_DEV || blk_rq_is_passthrough(scmd->request)) return 1; - else - return 0; + + return 0; } /** -- cgit v1.2.3 From 46c9d608f989997913740f20c9be2c3afa79c370 Mon Sep 17 00:00:00 2001 From: Damien Le Moal Date: Thu, 10 Sep 2020 16:48:42 +0900 Subject: scsi: core: Update additional sense codes list Add missing Additional Sense Codes listed in http://www.t10.org/lists/asc-num.txt. Link: https://lore.kernel.org/r/20200910074843.217661-3-damien.lemoal@wdc.com Reviewed-by: Himanshu Madhani Reviewed-by: Johannes Thumshirn Signed-off-by: Damien Le Moal Signed-off-by: Martin K. Petersen --- drivers/scsi/sense_codes.h | 54 +++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 53 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/sense_codes.h b/drivers/scsi/sense_codes.h index 201a536688de..805d4c13d070 100644 --- a/drivers/scsi/sense_codes.h +++ b/drivers/scsi/sense_codes.h @@ -1,7 +1,7 @@ /* SPDX-License-Identifier: GPL-2.0 */ /* * The canonical list of T10 Additional Sense Codes is available at: - * http://www.t10.org/lists/asc-num.txt [most recent: 20141221] + * http://www.t10.org/lists/asc-num.txt [most recent: 20200817] */ SENSE_CODE(0x0000, "No additional sense information") @@ -29,6 +29,7 @@ SENSE_CODE(0x001E, "Conflicting SA creation request") SENSE_CODE(0x001F, "Logical unit transitioning to another power condition") SENSE_CODE(0x0020, "Extended copy information available") SENSE_CODE(0x0021, "Atomic command aborted due to ACA") +SENSE_CODE(0x0022, "Deferred microcode is pending") SENSE_CODE(0x0100, "No index/sector signal") @@ -72,6 +73,9 @@ SENSE_CODE(0x041F, "Logical unit not ready, microcode download required") SENSE_CODE(0x0420, "Logical unit not ready, logical unit reset required") SENSE_CODE(0x0421, "Logical unit not ready, hard reset required") SENSE_CODE(0x0422, "Logical unit not ready, power cycle required") +SENSE_CODE(0x0423, "Logical unit not ready, affiliation required") +SENSE_CODE(0x0424, "Depopulation in progress") +SENSE_CODE(0x0425, "Depopulation restoration in progress") SENSE_CODE(0x0500, "Logical unit does not respond to selection") @@ -104,6 +108,17 @@ SENSE_CODE(0x0B06, "Warning - non-volatile cache now volatile") SENSE_CODE(0x0B07, "Warning - degraded power to non-volatile cache") SENSE_CODE(0x0B08, "Warning - power loss expected") SENSE_CODE(0x0B09, "Warning - device statistics notification active") +SENSE_CODE(0x0B0A, "Warning - high critical temperature limit exceeded") +SENSE_CODE(0x0B0B, "Warning - low critical temperature limit exceeded") +SENSE_CODE(0x0B0C, "Warning - high operating temperature limit exceeded") +SENSE_CODE(0x0B0D, "Warning - low operating temperature limit exceeded") +SENSE_CODE(0x0B0E, "Warning - high critical humidity limit exceeded") +SENSE_CODE(0x0B0F, "Warning - low critical humidity limit exceeded") +SENSE_CODE(0x0B10, "Warning - high operating humidity limit exceeded") +SENSE_CODE(0x0B11, "Warning - low operating humidity limit exceeded") +SENSE_CODE(0x0B12, "Warning - microcode security at risk") +SENSE_CODE(0x0B13, "Warning - microcode digital signature validation failure") +SENSE_CODE(0x0B14, "Warning - physical element status change") SENSE_CODE(0x0C00, "Write error") SENSE_CODE(0x0C01, "Write error - recovered with auto reallocation") @@ -122,6 +137,8 @@ SENSE_CODE(0x0C0D, "Write error - not enough unsolicited data") SENSE_CODE(0x0C0E, "Multiple write errors") SENSE_CODE(0x0C0F, "Defects in error window") SENSE_CODE(0x0C10, "Incomplete multiple atomic write operations") +SENSE_CODE(0x0C11, "Write error - recovery scan needed") +SENSE_CODE(0x0C12, "Write error - insufficient zone resources") SENSE_CODE(0x0D00, "Error detected by third party temporary initiator") SENSE_CODE(0x0D01, "Third party device failure") @@ -242,6 +259,9 @@ SENSE_CODE(0x2009, "Access denied - invalid LU identifier") SENSE_CODE(0x200A, "Access denied - invalid proxy token") SENSE_CODE(0x200B, "Access denied - ACL LUN conflict") SENSE_CODE(0x200C, "Illegal command when not in append-only mode") +SENSE_CODE(0x200D, "Not an administrative logical unit") +SENSE_CODE(0x200E, "Not a subsidiary logical unit") +SENSE_CODE(0x200F, "Not a conglomerate logical unit") SENSE_CODE(0x2100, "Logical block address out of range") SENSE_CODE(0x2101, "Invalid element address") @@ -251,6 +271,8 @@ SENSE_CODE(0x2104, "Unaligned write command") SENSE_CODE(0x2105, "Write boundary violation") SENSE_CODE(0x2106, "Attempt to read invalid data") SENSE_CODE(0x2107, "Read boundary violation") +SENSE_CODE(0x2108, "Misaligned write command") +SENSE_CODE(0x2109, "Attempt to access gap zone") SENSE_CODE(0x2200, "Illegal function (use 20 00, 24 00, or 26 00)") @@ -275,6 +297,7 @@ SENSE_CODE(0x2405, "Security working key frozen") SENSE_CODE(0x2406, "Nonce not unique") SENSE_CODE(0x2407, "Nonce timestamp out of range") SENSE_CODE(0x2408, "Invalid XCDB") +SENSE_CODE(0x2409, "Invalid fast format") SENSE_CODE(0x2500, "Logical unit not supported") @@ -297,6 +320,10 @@ SENSE_CODE(0x260F, "Invalid data-out buffer integrity check value") SENSE_CODE(0x2610, "Data decryption key fail limit reached") SENSE_CODE(0x2611, "Incomplete key-associated data set") SENSE_CODE(0x2612, "Vendor specific key reference not found") +SENSE_CODE(0x2613, "Application tag mode page is invalid") +SENSE_CODE(0x2614, "Tape stream mirroring prevented") +SENSE_CODE(0x2615, "Copy source or copy destination not authorized") +SENSE_CODE(0x2616, "Fast copy not possible") SENSE_CODE(0x2700, "Write protected") SENSE_CODE(0x2701, "Hardware write protected") @@ -342,6 +369,7 @@ SENSE_CODE(0x2A12, "Data encryption parameters changed by vendor specific event" SENSE_CODE(0x2A13, "Data encryption key instance counter has changed") SENSE_CODE(0x2A14, "SA creation capabilities data has changed") SENSE_CODE(0x2A15, "Medium removal prevention preempted") +SENSE_CODE(0x2A16, "Zone reset write pointer recommended") SENSE_CODE(0x2B00, "Copy cannot execute since host cannot disconnect") @@ -360,6 +388,11 @@ SENSE_CODE(0x2C0B, "Not reserved") SENSE_CODE(0x2C0C, "Orwrite generation does not match") SENSE_CODE(0x2C0D, "Reset write pointer not allowed") SENSE_CODE(0x2C0E, "Zone is offline") +SENSE_CODE(0x2C0F, "Stream not open") +SENSE_CODE(0x2C10, "Unwritten data in zone") +SENSE_CODE(0x2C11, "Descriptor format sense data required") +SENSE_CODE(0x2C12, "Zone is inactive") +SENSE_CODE(0x2C13, "Well known logical unit access required") SENSE_CODE(0x2D00, "Overwrite error on update in place") @@ -395,6 +428,8 @@ SENSE_CODE(0x3100, "Medium format corrupted") SENSE_CODE(0x3101, "Format command failed") SENSE_CODE(0x3102, "Zoned formatting failed due to spare linking") SENSE_CODE(0x3103, "Sanitize command failed") +SENSE_CODE(0x3104, "Depopulation failed") +SENSE_CODE(0x3105, "Depopulation restoration failed") SENSE_CODE(0x3200, "No defect spare location available") SENSE_CODE(0x3201, "Defect list update failure") @@ -419,6 +454,7 @@ SENSE_CODE(0x3802, "Esn - power management class event") SENSE_CODE(0x3804, "Esn - media class event") SENSE_CODE(0x3806, "Esn - device busy class event") SENSE_CODE(0x3807, "Thin Provisioning soft threshold reached") +SENSE_CODE(0x3808, "Depopulation interrupted") SENSE_CODE(0x3900, "Saving parameters not supported") @@ -456,6 +492,7 @@ SENSE_CODE(0x3B19, "Element enabled") SENSE_CODE(0x3B1A, "Data transfer device removed") SENSE_CODE(0x3B1B, "Data transfer device inserted") SENSE_CODE(0x3B1C, "Too many logical objects on partition to support operation") +SENSE_CODE(0x3B20, "Element static information changed") SENSE_CODE(0x3D00, "Invalid bits in identify message") @@ -488,6 +525,11 @@ SENSE_CODE(0x3F13, "iSCSI IP address removed") SENSE_CODE(0x3F14, "iSCSI IP address changed") SENSE_CODE(0x3F15, "Inspect referrals sense descriptors") SENSE_CODE(0x3F16, "Microcode has been changed without reset") +SENSE_CODE(0x3F17, "Zone transition to full") +SENSE_CODE(0x3F18, "Bind completed") +SENSE_CODE(0x3F19, "Bind redirected") +SENSE_CODE(0x3F1A, "Subsidiary binding changed") + /* * SENSE_CODE(0x40NN, "Ram failure") * SENSE_CODE(0x40NN, "Diagnostic failure on component nn") @@ -589,6 +631,9 @@ SENSE_CODE(0x550B, "Insufficient power for operation") SENSE_CODE(0x550C, "Insufficient resources to create rod") SENSE_CODE(0x550D, "Insufficient resources to create rod token") SENSE_CODE(0x550E, "Insufficient zone resources") +SENSE_CODE(0x550F, "Insufficient zone resources to complete write") +SENSE_CODE(0x5510, "Maximum number of streams open") +SENSE_CODE(0x5511, "Insufficient resources to bind") SENSE_CODE(0x5700, "Unable to recover table-of-contents") @@ -692,6 +737,7 @@ SENSE_CODE(0x5D69, "Firmware impending failure throughput performance") SENSE_CODE(0x5D6A, "Firmware impending failure seek time performance") SENSE_CODE(0x5D6B, "Firmware impending failure spin-up retry count") SENSE_CODE(0x5D6C, "Firmware impending failure drive calibration retry count") +SENSE_CODE(0x5D73, "Media impending failure endurance limit met") SENSE_CODE(0x5DFF, "Failure prediction threshold exceeded (false)") SENSE_CODE(0x5E00, "Low power condition on") @@ -744,6 +790,8 @@ SENSE_CODE(0x6708, "Assign failure occurred") SENSE_CODE(0x6709, "Multiply assigned logical unit") SENSE_CODE(0x670A, "Set target port groups command failed") SENSE_CODE(0x670B, "ATA device feature not enabled") +SENSE_CODE(0x670C, "Command rejected") +SENSE_CODE(0x670D, "Explicit bind not allowed") SENSE_CODE(0x6800, "Logical unit not configured") SENSE_CODE(0x6801, "Subsidiary logical unit not configured") @@ -772,6 +820,10 @@ SENSE_CODE(0x6F04, "Media region code is mismatched to logical unit region") SENSE_CODE(0x6F05, "Drive region must be permanent/region reset count error") SENSE_CODE(0x6F06, "Insufficient block count for binding nonce recording") SENSE_CODE(0x6F07, "Conflict in binding nonce recording") +SENSE_CODE(0x6F08, "Insufficient permission") +SENSE_CODE(0x6F09, "Invalid drive-host pairing server") +SENSE_CODE(0x6F0A, "Drive-host pairing suspended") + /* * SENSE_CODE(0x70NN, "Decompression exception short algorithm id of nn") */ -- cgit v1.2.3 From 4b29cb6197d92bf3264fdd5c5df0f41b464bb05c Mon Sep 17 00:00:00 2001 From: Brian King Date: Fri, 11 Sep 2020 16:28:26 -0500 Subject: scsi: ibmvfc: Avoid link down on FS9100 canister reboot When a canister on a FS9100, or similar storage, running in NPIV mode, is rebooted, its WWPNs will fail over to another canister. When this occurs, we see a WWPN going away from the fabric at one N-Port ID, and, a short time later, the same WWPN appears at a different N-Port ID. When the canister is fully operational again, the WWPNs fail back to the original canister. If there is any I/O outstanding to the target when this occurs, it will result in the implicit logout the ibmvfc driver issues before removing the rport to fail. When the WWPN then shows up at a different N-Port ID, and we issue a PLOGI to it, the VIOS will see that it still has a login for this WWPN at the old N-Port ID, which results in the VIOS simulating a link down / link up sequence to the client, in order to get the VIOS and client LPAR in sync. The patch below improves the way we handle this scenario so as to avoid the link bounce, which affects all targets under the virtual host adapter. The change is to utilize the Move Login MAD, which will work even when I/O is outstanding to the target. The change only alters the target state machine for the case where the implicit logout fails prior to deleting the rport. If this implicit logout fails, we defer deleting the ibmvfc_target object after calling fc_remote_port_delete. This enables us to later retry the implicit logout after terminate_rport_io occurs, or to issue the Move Login request if a WWPN shows up at a new N-Port ID prior to this occurring. This has been tested by IBM's storage interoperability team on a FS9100, forcing the failover to occur. With debug tracing enabled in the ibmvfc driver, we confirmed the move login was sent in this scenario and confirmed the link bounce no longer occurred. [mkp: fix checkpatch warnings] Link: https://lore.kernel.org/r/1599859706-8505-1-git-send-email-brking@linux.vnet.ibm.com Signed-off-by: Brian King Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi/ibmvfc.c | 226 ++++++++++++++++++++++++++++++++++++++--- drivers/scsi/ibmvscsi/ibmvfc.h | 38 ++++++- 2 files changed, 247 insertions(+), 17 deletions(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index 175a165da07b..e641aaa1a0f6 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -134,6 +134,7 @@ static void ibmvfc_tgt_send_plogi(struct ibmvfc_target *); static void ibmvfc_tgt_query_target(struct ibmvfc_target *); static void ibmvfc_npiv_logout(struct ibmvfc_host *); static void ibmvfc_tgt_implicit_logout_and_del(struct ibmvfc_target *); +static void ibmvfc_tgt_move_login(struct ibmvfc_target *); static const char *unknown_error = "unknown error"; @@ -431,7 +432,20 @@ static int ibmvfc_set_tgt_action(struct ibmvfc_target *tgt, } break; case IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT: - if (action == IBMVFC_TGT_ACTION_DEL_RPORT) { + if (action == IBMVFC_TGT_ACTION_DEL_RPORT || + action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) { + tgt->action = action; + rc = 0; + } + break; + case IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT: + if (action == IBMVFC_TGT_ACTION_LOGOUT_RPORT) { + tgt->action = action; + rc = 0; + } + break; + case IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT: + if (action == IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT) { tgt->action = action; rc = 0; } @@ -441,16 +455,18 @@ static int ibmvfc_set_tgt_action(struct ibmvfc_target *tgt, tgt->action = action; rc = 0; } + break; case IBMVFC_TGT_ACTION_DELETED_RPORT: break; default: - if (action >= IBMVFC_TGT_ACTION_LOGOUT_RPORT) - tgt->add_rport = 0; tgt->action = action; rc = 0; break; } + if (action >= IBMVFC_TGT_ACTION_LOGOUT_RPORT) + tgt->add_rport = 0; + return rc; } @@ -548,7 +564,8 @@ static void ibmvfc_set_host_action(struct ibmvfc_host *vhost, **/ static void ibmvfc_reinit_host(struct ibmvfc_host *vhost) { - if (vhost->action == IBMVFC_HOST_ACTION_NONE) { + if (vhost->action == IBMVFC_HOST_ACTION_NONE && + vhost->state == IBMVFC_ACTIVE) { if (!ibmvfc_set_host_state(vhost, IBMVFC_INITIALIZING)) { scsi_block_requests(vhost->host); ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_QUERY); @@ -2574,7 +2591,9 @@ static void ibmvfc_terminate_rport_io(struct fc_rport *rport) struct ibmvfc_host *vhost = shost_priv(shost); struct fc_rport *dev_rport; struct scsi_device *sdev; - unsigned long rc; + struct ibmvfc_target *tgt; + unsigned long rc, flags; + unsigned int found; ENTER; shost_for_each_device(sdev, shost) { @@ -2588,6 +2607,27 @@ static void ibmvfc_terminate_rport_io(struct fc_rport *rport) if (rc == FAILED) ibmvfc_issue_fc_host_lip(shost); + + spin_lock_irqsave(shost->host_lock, flags); + found = 0; + list_for_each_entry(tgt, &vhost->targets, queue) { + if (tgt->scsi_id == rport->port_id) { + found++; + break; + } + } + + if (found && tgt->action == IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT) { + /* + * If we get here, that means we previously attempted to send + * an implicit logout to the target but it failed, most likely + * due to I/O being pending, so we need to send it again + */ + ibmvfc_del_tgt(tgt); + ibmvfc_reinit_host(vhost); + } + + spin_unlock_irqrestore(shost->host_lock, flags); LEAVE; } @@ -3623,7 +3663,18 @@ static void ibmvfc_tgt_implicit_logout_and_del_done(struct ibmvfc_event *evt) vhost->discovery_threads--; ibmvfc_free_event(evt); - ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); + + /* + * If our state is IBMVFC_HOST_OFFLINE, we could be unloading the + * driver in which case we need to free up all the targets. If we are + * not unloading, we will still go through a hard reset to get out of + * offline state, so there is no need to track the old targets in that + * case. + */ + if (status == IBMVFC_MAD_SUCCESS || vhost->state == IBMVFC_HOST_OFFLINE) + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); + else + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT); tgt_dbg(tgt, "Implicit Logout %s\n", (status == IBMVFC_MAD_SUCCESS) ? "succeeded" : "failed"); kref_put(&tgt->kref, ibmvfc_release_tgt); @@ -3661,6 +3712,94 @@ static void ibmvfc_tgt_implicit_logout_and_del(struct ibmvfc_target *tgt) tgt_dbg(tgt, "Sent Implicit Logout\n"); } +/** + * ibmvfc_tgt_move_login_done - Completion handler for Move Login + * @evt: ibmvfc event struct + * + **/ +static void ibmvfc_tgt_move_login_done(struct ibmvfc_event *evt) +{ + struct ibmvfc_target *tgt = evt->tgt; + struct ibmvfc_host *vhost = evt->vhost; + struct ibmvfc_move_login *rsp = &evt->xfer_iu->move_login; + u32 status = be16_to_cpu(rsp->common.status); + int level = IBMVFC_DEFAULT_LOG_LEVEL; + + vhost->discovery_threads--; + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_NONE); + switch (status) { + case IBMVFC_MAD_SUCCESS: + tgt_dbg(tgt, "Move Login succeeded for old scsi_id: %llX\n", tgt->old_scsi_id); + tgt->ids.node_name = wwn_to_u64(rsp->service_parms.node_name); + tgt->ids.port_name = wwn_to_u64(rsp->service_parms.port_name); + tgt->ids.port_id = tgt->scsi_id; + memcpy(&tgt->service_parms, &rsp->service_parms, + sizeof(tgt->service_parms)); + memcpy(&tgt->service_parms_change, &rsp->service_parms_change, + sizeof(tgt->service_parms_change)); + ibmvfc_init_tgt(tgt, ibmvfc_tgt_send_prli); + break; + case IBMVFC_MAD_DRIVER_FAILED: + break; + case IBMVFC_MAD_CRQ_ERROR: + ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_move_login); + break; + case IBMVFC_MAD_FAILED: + default: + level += ibmvfc_retry_tgt_init(tgt, ibmvfc_tgt_move_login); + + tgt_log(tgt, level, + "Move Login failed: old scsi_id: %llX, flags:%x, vios_flags:%x, rc=0x%02X\n", + tgt->old_scsi_id, be32_to_cpu(rsp->flags), be16_to_cpu(rsp->vios_flags), + status); + break; + } + + kref_put(&tgt->kref, ibmvfc_release_tgt); + ibmvfc_free_event(evt); + wake_up(&vhost->work_wait_q); +} + + +/** + * ibmvfc_tgt_move_login - Initiate a move login for specified target + * @tgt: ibmvfc target struct + * + **/ +static void ibmvfc_tgt_move_login(struct ibmvfc_target *tgt) +{ + struct ibmvfc_host *vhost = tgt->vhost; + struct ibmvfc_move_login *move; + struct ibmvfc_event *evt; + + if (vhost->discovery_threads >= disc_threads) + return; + + kref_get(&tgt->kref); + evt = ibmvfc_get_event(vhost); + vhost->discovery_threads++; + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_INIT_WAIT); + ibmvfc_init_event(evt, ibmvfc_tgt_move_login_done, IBMVFC_MAD_FORMAT); + evt->tgt = tgt; + move = &evt->iu.move_login; + memset(move, 0, sizeof(*move)); + move->common.version = cpu_to_be32(1); + move->common.opcode = cpu_to_be32(IBMVFC_MOVE_LOGIN); + move->common.length = cpu_to_be16(sizeof(*move)); + + move->old_scsi_id = cpu_to_be64(tgt->old_scsi_id); + move->new_scsi_id = cpu_to_be64(tgt->scsi_id); + move->wwpn = cpu_to_be64(tgt->wwpn); + move->node_name = cpu_to_be64(tgt->ids.node_name); + + if (ibmvfc_send_event(evt, vhost, default_timeout)) { + vhost->discovery_threads--; + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_DEL_RPORT); + kref_put(&tgt->kref, ibmvfc_release_tgt); + } else + tgt_dbg(tgt, "Sent Move Login for old scsi_id: %llX\n", tgt->old_scsi_id); +} + /** * ibmvfc_adisc_needs_plogi - Does device need PLOGI? * @mad: ibmvfc passthru mad struct @@ -3979,24 +4118,70 @@ static void ibmvfc_tgt_query_target(struct ibmvfc_target *tgt) * Returns: * 0 on success / other on failure **/ -static int ibmvfc_alloc_target(struct ibmvfc_host *vhost, u64 scsi_id) +static int ibmvfc_alloc_target(struct ibmvfc_host *vhost, + struct ibmvfc_discover_targets_entry *target) { + struct ibmvfc_target *stgt = NULL; + struct ibmvfc_target *wtgt = NULL; struct ibmvfc_target *tgt; unsigned long flags; + u64 scsi_id = be32_to_cpu(target->scsi_id) & IBMVFC_DISC_TGT_SCSI_ID_MASK; + u64 wwpn = be64_to_cpu(target->wwpn); + /* Look to see if we already have a target allocated for this SCSI ID or WWPN */ spin_lock_irqsave(vhost->host->host_lock, flags); + list_for_each_entry(tgt, &vhost->targets, queue) { + if (tgt->wwpn == wwpn) { + wtgt = tgt; + break; + } + } + list_for_each_entry(tgt, &vhost->targets, queue) { if (tgt->scsi_id == scsi_id) { - if (tgt->need_login) - ibmvfc_init_tgt(tgt, ibmvfc_tgt_implicit_logout); + stgt = tgt; + break; + } + } + + if (wtgt && !stgt) { + /* + * A WWPN target has moved and we still are tracking the old + * SCSI ID. The only way we should be able to get here is if + * we attempted to send an implicit logout for the old SCSI ID + * and it failed for some reason, such as there being I/O + * pending to the target. In this case, we will have already + * deleted the rport from the FC transport so we do a move + * login, which works even with I/O pending, as it will cancel + * any active commands. + */ + if (wtgt->action == IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT) { + /* + * Do a move login here. The old target is no longer + * known to the transport layer We don't use the + * normal ibmvfc_set_tgt_action to set this, as we + * don't normally want to allow this state change. + */ + wtgt->old_scsi_id = wtgt->scsi_id; + wtgt->scsi_id = scsi_id; + wtgt->action = IBMVFC_TGT_ACTION_INIT; + ibmvfc_init_tgt(wtgt, ibmvfc_tgt_move_login); goto unlock_out; + } else { + tgt_err(wtgt, "Unexpected target state: %d, %p\n", + wtgt->action, wtgt->rport); } + } else if (stgt) { + if (tgt->need_login) + ibmvfc_init_tgt(tgt, ibmvfc_tgt_implicit_logout); + goto unlock_out; } spin_unlock_irqrestore(vhost->host->host_lock, flags); tgt = mempool_alloc(vhost->tgt_pool, GFP_NOIO); memset(tgt, 0, sizeof(*tgt)); tgt->scsi_id = scsi_id; + tgt->wwpn = wwpn; tgt->vhost = vhost; tgt->need_login = 1; tgt->cancel_key = vhost->task_set++; @@ -4023,9 +4208,7 @@ static int ibmvfc_alloc_targets(struct ibmvfc_host *vhost) int i, rc; for (i = 0, rc = 0; !rc && i < vhost->num_targets; i++) - rc = ibmvfc_alloc_target(vhost, - be32_to_cpu(vhost->disc_buf->scsi_id[i]) & - IBMVFC_DISC_TGT_SCSI_ID_MASK); + rc = ibmvfc_alloc_target(vhost, &vhost->disc_buf[i]); return rc; } @@ -4085,6 +4268,7 @@ static void ibmvfc_discover_targets(struct ibmvfc_host *vhost) mad->bufflen = cpu_to_be32(vhost->disc_buf_sz); mad->buffer.va = cpu_to_be64(vhost->disc_buf_dma); mad->buffer.len = cpu_to_be32(vhost->disc_buf_sz); + mad->flags = cpu_to_be32(IBMVFC_DISC_TGT_PORT_ID_WWPN_LIST); ibmvfc_set_host_action(vhost, IBMVFC_HOST_ACTION_INIT_WAIT); if (!ibmvfc_send_event(evt, vhost, default_timeout)) @@ -4420,6 +4604,13 @@ static void ibmvfc_tgt_add_rport(struct ibmvfc_target *tgt) del_timer_sync(&tgt->timer); kref_put(&tgt->kref, ibmvfc_release_tgt); return; + } else if (rport && tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) { + tgt_dbg(tgt, "Deleting rport with outstanding I/O\n"); + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT); + tgt->rport = NULL; + spin_unlock_irqrestore(vhost->host->host_lock, flags); + fc_remote_port_delete(rport); + return; } else if (rport && tgt->action == IBMVFC_TGT_ACTION_DELETED_RPORT) { spin_unlock_irqrestore(vhost->host->host_lock, flags); return; @@ -4543,6 +4734,15 @@ static void ibmvfc_do_work(struct ibmvfc_host *vhost) del_timer_sync(&tgt->timer); kref_put(&tgt->kref, ibmvfc_release_tgt); return; + } else if (tgt->action == IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT) { + tgt_dbg(tgt, "Deleting rport with I/O outstanding\n"); + rport = tgt->rport; + tgt->rport = NULL; + ibmvfc_set_tgt_action(tgt, IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT); + spin_unlock_irqrestore(vhost->host->host_lock, flags); + if (rport) + fc_remote_port_delete(rport); + return; } } @@ -4775,7 +4975,7 @@ static int ibmvfc_alloc_mem(struct ibmvfc_host *vhost) goto free_sg_pool; } - vhost->disc_buf_sz = sizeof(vhost->disc_buf->scsi_id[0]) * max_targets; + vhost->disc_buf_sz = sizeof(*vhost->disc_buf) * max_targets; vhost->disc_buf = dma_alloc_coherent(dev, vhost->disc_buf_sz, &vhost->disc_buf_dma, GFP_KERNEL); diff --git a/drivers/scsi/ibmvscsi/ibmvfc.h b/drivers/scsi/ibmvscsi/ibmvfc.h index e6e1c255a79c..34debccfb142 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.h +++ b/drivers/scsi/ibmvscsi/ibmvfc.h @@ -120,6 +120,7 @@ enum ibmvfc_mad_types { IBMVFC_PORT_LOGIN = 0x0004, IBMVFC_PROCESS_LOGIN = 0x0008, IBMVFC_QUERY_TARGET = 0x0010, + IBMVFC_MOVE_LOGIN = 0x0020, IBMVFC_IMPLICIT_LOGOUT = 0x0040, IBMVFC_PASSTHRU = 0x0200, IBMVFC_TMF_MAD = 0x0100, @@ -197,6 +198,7 @@ struct ibmvfc_service_parms { __be32 ext_len; __be32 reserved[30]; __be32 clk_sync_qos[2]; + __be32 reserved2; } __packed __aligned(4); struct ibmvfc_npiv_login_resp { @@ -230,15 +232,18 @@ union ibmvfc_npiv_login_data { struct ibmvfc_npiv_login_resp resp; } __packed __aligned(8); -struct ibmvfc_discover_targets_buf { - __be32 scsi_id[1]; +struct ibmvfc_discover_targets_entry { + __be32 scsi_id; + __be32 pad; + __be64 wwpn; #define IBMVFC_DISC_TGT_SCSI_ID_MASK 0x00ffffff -}; +} __packed __aligned(8); struct ibmvfc_discover_targets { struct ibmvfc_mad_common common; struct srp_direct_buf buffer; __be32 flags; +#define IBMVFC_DISC_TGT_PORT_ID_WWPN_LIST 0x02 __be16 status; __be16 error; __be32 bufflen; @@ -291,6 +296,26 @@ struct ibmvfc_port_login { __be64 reserved3[2]; } __packed __aligned(8); +struct ibmvfc_move_login { + struct ibmvfc_mad_common common; + __be64 old_scsi_id; + __be64 new_scsi_id; + __be64 wwpn; + __be64 node_name; + __be32 flags; +#define IBMVFC_MOVE_LOGIN_IMPLICIT_OLD_FAILED 0x01 +#define IBMVFC_MOVE_LOGIN_IMPLICIT_NEW_FAILED 0x02 +#define IBMVFC_MOVE_LOGIN_PORT_LOGIN_FAILED 0x04 + __be32 reserved; + struct ibmvfc_service_parms service_parms; + struct ibmvfc_service_parms service_parms_change; + __be32 reserved2; + __be16 service_class; + __be16 vios_flags; +#define IBMVFC_MOVE_LOGIN_VF_NOT_SENT_ADAPTER 0x01 + __be64 reserved3; +} __packed __aligned(8); + struct ibmvfc_prli_svc_parms { u8 type; #define IBMVFC_SCSI_FCP_TYPE 0x08 @@ -646,6 +671,7 @@ union ibmvfc_iu { struct ibmvfc_discover_targets discover_targets; struct ibmvfc_port_login plogi; struct ibmvfc_process_login prli; + struct ibmvfc_move_login move_login; struct ibmvfc_query_tgt query_tgt; struct ibmvfc_implicit_logout implicit_logout; struct ibmvfc_tmf tmf; @@ -664,12 +690,16 @@ enum ibmvfc_target_action { IBMVFC_TGT_ACTION_LOGOUT_RPORT_WAIT, IBMVFC_TGT_ACTION_DEL_RPORT, IBMVFC_TGT_ACTION_DELETED_RPORT, + IBMVFC_TGT_ACTION_DEL_AND_LOGOUT_RPORT, + IBMVFC_TGT_ACTION_LOGOUT_DELETED_RPORT, }; struct ibmvfc_target { struct list_head queue; struct ibmvfc_host *vhost; u64 scsi_id; + u64 wwpn; + u64 old_scsi_id; struct fc_rport *rport; int target_id; enum ibmvfc_target_action action; @@ -765,7 +795,7 @@ struct ibmvfc_host { dma_addr_t login_buf_dma; int disc_buf_sz; int log_level; - struct ibmvfc_discover_targets_buf *disc_buf; + struct ibmvfc_discover_targets_entry *disc_buf; struct mutex passthru_mutex; int task_set; int init_retries; -- cgit v1.2.3 From bb1932dbb83abb2036ab3b487c1bb2a758855964 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 2 Sep 2020 14:16:46 +0800 Subject: scsi: sym53c8xx_2: Delete unnecessary else-if in sym_xerr_cam_status() If (x_status & XE_PARITY_ERR) is true we set cam_status = DID_PARITY, othervise cam_status always ends up being DID_ERROR. Delete superfluous else-if statements. Link: https://lore.kernel.org/r/20200902061646.576966-1-yebin10@huawei.com Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/sym53c8xx_2/sym_glue.c | 6 +----- 1 file changed, 1 insertion(+), 5 deletions(-) diff --git a/drivers/scsi/sym53c8xx_2/sym_glue.c b/drivers/scsi/sym53c8xx_2/sym_glue.c index 28edb6e53ea2..d9a045f9858c 100644 --- a/drivers/scsi/sym53c8xx_2/sym_glue.c +++ b/drivers/scsi/sym53c8xx_2/sym_glue.c @@ -156,12 +156,8 @@ void sym_xpt_async_bus_reset(struct sym_hcb *np) static int sym_xerr_cam_status(int cam_status, int x_status) { if (x_status) { - if (x_status & XE_PARITY_ERR) + if (x_status & XE_PARITY_ERR) cam_status = DID_PARITY; - else if (x_status &(XE_EXTRA_DATA|XE_SODL_UNRUN|XE_SWIDE_OVRUN)) - cam_status = DID_ERROR; - else if (x_status & XE_BAD_PHASE) - cam_status = DID_ERROR; else cam_status = DID_ERROR; } -- cgit v1.2.3 From 571e1568862822cf27ff1f7b7cacf98a7e435307 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Sat, 12 Sep 2020 11:37:49 +0800 Subject: scsi: aacraid: Make some symbols static in aachba.c This eliminates the following sparse warning: drivers/scsi/aacraid/aachba.c:245:5: warning: symbol 'aac_convert_sgl' was not declared. Should it be static? drivers/scsi/aacraid/aachba.c:293:5: warning: symbol 'acbsize' was not declared. Should it be static? drivers/scsi/aacraid/aachba.c:324:5: warning: symbol 'aac_wwn' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200912033749.142488-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/aachba.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c index 8808722a5ff1..934d071221ad 100644 --- a/drivers/scsi/aacraid/aachba.c +++ b/drivers/scsi/aacraid/aachba.c @@ -242,7 +242,7 @@ int aac_commit = -1; int startup_timeout = 180; int aif_timeout = 120; int aac_sync_mode; /* Only Sync. transfer - disabled */ -int aac_convert_sgl = 1; /* convert non-conformable s/g list - enabled */ +static int aac_convert_sgl = 1; /* convert non-conformable s/g list - enabled */ module_param(aac_sync_mode, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(aac_sync_mode, "Force sync. transfer mode" @@ -290,7 +290,7 @@ MODULE_PARM_DESC(numacb, "Request a limit to the number of adapter control" " blocks (FIB) allocated. Valid values are 512 and down. Default is" " to use suggestion from Firmware."); -int acbsize = -1; +static int acbsize = -1; module_param(acbsize, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(acbsize, "Request a specific adapter control block (FIB)" " size. Valid values are 512, 2048, 4096 and 8192. Default is to use" @@ -321,7 +321,7 @@ int aac_reset_devices; module_param_named(reset_devices, aac_reset_devices, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(reset_devices, "Force an adapter reset at initialization."); -int aac_wwn = 1; +static int aac_wwn = 1; module_param_named(wwn, aac_wwn, int, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(wwn, "Select a WWN type for the arrays:\n" "\t0 - Disable\n" -- cgit v1.2.3 From 7867c549d5741437b771a91e2a1d5e77e48bc3d0 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Sat, 12 Sep 2020 11:37:41 +0800 Subject: scsi: isci: Make isci_host_attrs static This eliminates the following sparse warning: drivers/scsi/isci/init.c:145:25: warning: symbol 'isci_host_attrs' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200912033741.142415-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/isci/init.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/isci/init.c b/drivers/scsi/isci/init.c index 085e285f427d..93bc9019667f 100644 --- a/drivers/scsi/isci/init.c +++ b/drivers/scsi/isci/init.c @@ -142,7 +142,7 @@ static ssize_t isci_show_id(struct device *dev, struct device_attribute *attr, c static DEVICE_ATTR(isci_id, S_IRUGO, isci_show_id, NULL); -struct device_attribute *isci_host_attrs[] = { +static struct device_attribute *isci_host_attrs[] = { &dev_attr_isci_id, NULL }; -- cgit v1.2.3 From 5c2ef01448e9f136f8344c991bb1296e6edc44f4 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Sat, 12 Sep 2020 11:37:58 +0800 Subject: scsi: bnx2fc: Make a bunch of symbols static in bnx2fc_fcoe.c This eliminates the following sparse warning: drivers/scsi/bnx2fc/bnx2fc_fcoe.c:53:1: warning: symbol 'bnx2fc_global_lock' was not declared. Should it be static? drivers/scsi/bnx2fc/bnx2fc_fcoe.c:111:6: warning: symbol 'bnx2fc_devloss_tmo' was not declared. Should it be static? drivers/scsi/bnx2fc/bnx2fc_fcoe.c:116:6: warning: symbol 'bnx2fc_max_luns' was not declared. Should it be static? drivers/scsi/bnx2fc/bnx2fc_fcoe.c:121:6: warning: symbol 'bnx2fc_queue_depth' was not declared. Should it be static? drivers/scsi/bnx2fc/bnx2fc_fcoe.c:126:6: warning: symbol 'bnx2fc_log_fka' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200912033758.142601-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/bnx2fc/bnx2fc_fcoe.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c index 5cdeeb3539fd..6890bbe04a8c 100644 --- a/drivers/scsi/bnx2fc/bnx2fc_fcoe.c +++ b/drivers/scsi/bnx2fc/bnx2fc_fcoe.c @@ -50,7 +50,7 @@ struct workqueue_struct *bnx2fc_wq; * Here the io threads are per cpu but the l2 thread is just one */ struct fcoe_percpu_s bnx2fc_global; -DEFINE_SPINLOCK(bnx2fc_global_lock); +static DEFINE_SPINLOCK(bnx2fc_global_lock); static struct cnic_ulp_ops bnx2fc_cnic_cb; static struct libfc_function_template bnx2fc_libfc_fcn_templ; @@ -108,22 +108,22 @@ MODULE_PARM_DESC(debug_logging, "\t\t0x10 - fcoe L2 fame related logs.\n" "\t\t0xff - LOG all messages."); -uint bnx2fc_devloss_tmo; +static uint bnx2fc_devloss_tmo; module_param_named(devloss_tmo, bnx2fc_devloss_tmo, uint, S_IRUGO); MODULE_PARM_DESC(devloss_tmo, " Change devloss_tmo for the remote ports " "attached via bnx2fc."); -uint bnx2fc_max_luns = BNX2FC_MAX_LUN; +static uint bnx2fc_max_luns = BNX2FC_MAX_LUN; module_param_named(max_luns, bnx2fc_max_luns, uint, S_IRUGO); MODULE_PARM_DESC(max_luns, " Change the default max_lun per SCSI host. Default " "0xffff."); -uint bnx2fc_queue_depth; +static uint bnx2fc_queue_depth; module_param_named(queue_depth, bnx2fc_queue_depth, uint, S_IRUGO); MODULE_PARM_DESC(queue_depth, " Change the default queue depth of SCSI devices " "attached via bnx2fc."); -uint bnx2fc_log_fka; +static uint bnx2fc_log_fka; module_param_named(log_fka, bnx2fc_log_fka, uint, S_IRUGO|S_IWUSR); MODULE_PARM_DESC(log_fka, " Print message to kernel log when fcoe is " "initiating a FIP keep alive when debug logging is enabled."); -- cgit v1.2.3 From 2494ebe1b3f73c01b92b7bf623de261e7bd8677f Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Tue, 15 Sep 2020 16:40:00 +0800 Subject: scsi: isci: Make scu_link_layer_set_txcomsas_timeout() static This addresses the following sparse warning: drivers/scsi/isci/phy.c:672:6: warning: symbol 'scu_link_layer_set_txcomsas_timeout' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200915084000.2826741-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/isci/phy.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/isci/phy.c b/drivers/scsi/isci/phy.c index 7f9b3f20e5e4..251d763130d4 100644 --- a/drivers/scsi/isci/phy.c +++ b/drivers/scsi/isci/phy.c @@ -669,7 +669,7 @@ static const char *phy_event_name(u32 event_code) phy_state_name(state), phy_event_name(code), code) -void scu_link_layer_set_txcomsas_timeout(struct isci_phy *iphy, u32 timeout) +static void scu_link_layer_set_txcomsas_timeout(struct isci_phy *iphy, u32 timeout) { u32 val; -- cgit v1.2.3 From ebe41b991d37d2adcadf9e36c0537e2ca1ff4476 Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Tue, 15 Sep 2020 16:40:08 +0800 Subject: scsi: myrs: Make some symbols static This addresses the following sparse warning: drivers/scsi/myrs.c:1532:5: warning: symbol 'myrs_host_reset' was not declared. Should it be static? drivers/scsi/myrs.c:1922:27: warning: symbol 'myrs_template' was not declared. Should it be static? drivers/scsi/myrs.c:2036:31: warning: symbol 'myrs_raid_functions' was not declared. Should it be static? drivers/scsi/myrs.c:2046:6: warning: symbol 'myrs_flush_cache' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200915084008.2826835-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/myrs.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/myrs.c b/drivers/scsi/myrs.c index 103803e779f2..7a3ade765ce3 100644 --- a/drivers/scsi/myrs.c +++ b/drivers/scsi/myrs.c @@ -1529,7 +1529,7 @@ static struct device_attribute *myrs_shost_attrs[] = { /* * SCSI midlayer interface */ -int myrs_host_reset(struct scsi_cmnd *scmd) +static int myrs_host_reset(struct scsi_cmnd *scmd) { struct Scsi_Host *shost = scmd->device->host; struct myrs_hba *cs = shost_priv(shost); @@ -1919,7 +1919,7 @@ static void myrs_slave_destroy(struct scsi_device *sdev) kfree(sdev->hostdata); } -struct scsi_host_template myrs_template = { +static struct scsi_host_template myrs_template = { .module = THIS_MODULE, .name = "DAC960", .proc_name = "myrs", @@ -2033,7 +2033,7 @@ myrs_get_state(struct device *dev) raid_set_state(myrs_raid_template, dev, state); } -struct raid_function_template myrs_raid_functions = { +static struct raid_function_template myrs_raid_functions = { .cookie = &myrs_template, .is_raid = myrs_is_raid, .get_resync = myrs_get_resync, @@ -2043,7 +2043,7 @@ struct raid_function_template myrs_raid_functions = { /* * PCI interface functions */ -void myrs_flush_cache(struct myrs_hba *cs) +static void myrs_flush_cache(struct myrs_hba *cs) { myrs_dev_op(cs, MYRS_IOCTL_FLUSH_DEVICE_DATA, MYRS_RAID_CONTROLLER); } -- cgit v1.2.3 From 9d8a5510281c380cec54fafba124ae38f5c7585e Mon Sep 17 00:00:00 2001 From: Jason Yan Date: Tue, 15 Sep 2020 16:40:18 +0800 Subject: scsi: myrb: Make some symblos static This addresses the following sparse warning: drivers/scsi/myrb.c:2229:27: warning: symbol 'myrb_template' was not declared. Should it be static? drivers/scsi/myrb.c:2318:31: warning: symbol 'myrb_raid_functions' was not declared. Should it be static? drivers/scsi/myrb.c:2492:6: warning: symbol 'myrb_err_status' was not declared. Should it be static? Link: https://lore.kernel.org/r/20200915084018.2826922-1-yanaijie@huawei.com Reported-by: Hulk Robot Signed-off-by: Jason Yan Signed-off-by: Martin K. Petersen --- drivers/scsi/myrb.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/myrb.c b/drivers/scsi/myrb.c index d4bd31a75b9d..b8020eaa6320 100644 --- a/drivers/scsi/myrb.c +++ b/drivers/scsi/myrb.c @@ -2226,7 +2226,7 @@ static struct device_attribute *myrb_shost_attrs[] = { NULL, }; -struct scsi_host_template myrb_template = { +static struct scsi_host_template myrb_template = { .module = THIS_MODULE, .name = "DAC960", .proc_name = "myrb", @@ -2315,7 +2315,7 @@ static void myrb_get_state(struct device *dev) raid_set_state(myrb_raid_template, dev, state); } -struct raid_function_template myrb_raid_functions = { +static struct raid_function_template myrb_raid_functions = { .cookie = &myrb_template, .is_raid = myrb_is_raid, .get_resync = myrb_get_resync, @@ -2489,7 +2489,7 @@ static void myrb_monitor(struct work_struct *work) * * Return: true for fatal errors and false otherwise. */ -bool myrb_err_status(struct myrb_hba *cb, unsigned char error, +static bool myrb_err_status(struct myrb_hba *cb, unsigned char error, unsigned char parm0, unsigned char parm1) { struct pci_dev *pdev = cb->pdev; -- cgit v1.2.3 From beef6fd02b906880c871ebdf6add166ebe54f632 Mon Sep 17 00:00:00 2001 From: Matej Genci Date: Fri, 28 Aug 2020 12:21:35 +0000 Subject: scsi: virtio_scsi: Rescan the entire target on transport reset when LUN is 0 VirtIO 1.0 spec says: The removed and rescan events ... when sent for LUN 0, they MAY apply to the entire target so the driver can ask the initiator to rescan the target to detect this. This change introduces the behaviour described above by scanning the entire SCSI target when LUN is set to 0. This is both a functional and a performance fix. It aligns the driver with the spec and allows control planes to hotplug targets with large numbers of LUNs without having to request a RESCAN for each one of them. Link: https://lore.kernel.org/r/CY4PR02MB33354370E0A81E75DD9DFE74FB520@CY4PR02MB3335.namprd02.prod.outlook.com Suggested-by: Felipe Franciosi Acked-by: Paolo Bonzini Signed-off-by: Matej Genci Signed-off-by: Martin K. Petersen --- drivers/scsi/virtio_scsi.c | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/virtio_scsi.c b/drivers/scsi/virtio_scsi.c index ca1c39b6f631..d454688dfd49 100644 --- a/drivers/scsi/virtio_scsi.c +++ b/drivers/scsi/virtio_scsi.c @@ -284,7 +284,12 @@ static void virtscsi_handle_transport_reset(struct virtio_scsi *vscsi, switch (virtio32_to_cpu(vscsi->vdev, event->reason)) { case VIRTIO_SCSI_EVT_RESET_RESCAN: - scsi_add_device(shost, 0, target, lun); + if (lun == 0) { + scsi_scan_target(&shost->shost_gendev, 0, target, + SCAN_WILD_CARD, SCSI_SCAN_INITIAL); + } else { + scsi_add_device(shost, 0, target, lun); + } break; case VIRTIO_SCSI_EVT_RESET_REMOVED: sdev = scsi_device_lookup(shost, 0, target, lun); -- cgit v1.2.3 From f97e6e1eabbfed0ec3ccce7562df26a5b21d0d99 Mon Sep 17 00:00:00 2001 From: Alex Dewar Date: Wed, 9 Sep 2020 19:58:55 +0100 Subject: scsi: aic7xxx: Use kmemdup() in two places kmemdup() can be used instead of kmalloc()+memcpy(). Replace two occurrences of this pattern. Issue identified with Coccinelle. Link: https://lore.kernel.org/r/20200909185855.151964-1-alex.dewar90@gmail.com Signed-off-by: Alex Dewar Signed-off-by: Martin K. Petersen --- drivers/scsi/aic7xxx/aic79xx_core.c | 3 +-- drivers/scsi/aic7xxx/aic7xxx_core.c | 3 +-- 2 files changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/aic7xxx/aic79xx_core.c b/drivers/scsi/aic7xxx/aic79xx_core.c index c912d29b8bdf..906d3d45b9de 100644 --- a/drivers/scsi/aic7xxx/aic79xx_core.c +++ b/drivers/scsi/aic7xxx/aic79xx_core.c @@ -9402,10 +9402,9 @@ ahd_loadseq(struct ahd_softc *ahd) if (cs_count != 0) { cs_count *= sizeof(struct cs); - ahd->critical_sections = kmalloc(cs_count, GFP_ATOMIC); + ahd->critical_sections = kmemdup(cs_table, cs_count, GFP_ATOMIC); if (ahd->critical_sections == NULL) panic("ahd_loadseq: Could not malloc"); - memcpy(ahd->critical_sections, cs_table, cs_count); } ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS|FASTMODE); diff --git a/drivers/scsi/aic7xxx/aic7xxx_core.c b/drivers/scsi/aic7xxx/aic7xxx_core.c index 3d4df906fa4f..e9a2cea74b28 100644 --- a/drivers/scsi/aic7xxx/aic7xxx_core.c +++ b/drivers/scsi/aic7xxx/aic7xxx_core.c @@ -6879,10 +6879,9 @@ ahc_loadseq(struct ahc_softc *ahc) if (cs_count != 0) { cs_count *= sizeof(struct cs); - ahc->critical_sections = kmalloc(cs_count, GFP_ATOMIC); + ahc->critical_sections = kmemdup(cs_table, cs_count, GFP_ATOMIC); if (ahc->critical_sections == NULL) panic("ahc_loadseq: Could not malloc"); - memcpy(ahc->critical_sections, cs_table, cs_count); } ahc_outb(ahc, SEQCTL, PERRORDIS|FAILDIS|FASTMODE); -- cgit v1.2.3 From ed5dd6a67d5eac5fb8873697b55dc1699752a9f3 Mon Sep 17 00:00:00 2001 From: Ming Lei Date: Thu, 10 Sep 2020 15:50:56 +0800 Subject: scsi: core: Only re-run queue in scsi_end_request() if device queue is busy The request queue is currently run unconditionally in scsi_end_request() if both target queue and host queue are ready. Recently Long Li reported that cost of a queue run can be very heavy in case of high queue depth. Improve this situation by only running the request queue when this LUN is busy. Link: https://lore.kernel.org/r/20200910075056.36509-1-ming.lei@redhat.com Reported-by: Long Li Tested-by: Long Li Tested-by: Kashyap Desai Reviewed-by: Bart Van Assche Reviewed-by: Hannes Reinecke Reviewed-by: Ewan D. Milne Reviewed-by: John Garry Signed-off-by: Ming Lei Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_lib.c | 48 ++++++++++++++++++++++++++++++++++++++++++---- include/scsi/scsi_device.h | 1 + 2 files changed, 45 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index 7c6dd6f75190..f0ee11dc07e4 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -549,10 +549,27 @@ static void scsi_mq_uninit_cmd(struct scsi_cmnd *cmd) static void scsi_run_queue_async(struct scsi_device *sdev) { if (scsi_target(sdev)->single_lun || - !list_empty(&sdev->host->starved_list)) + !list_empty(&sdev->host->starved_list)) { kblockd_schedule_work(&sdev->requeue_work); - else - blk_mq_run_hw_queues(sdev->request_queue, true); + } else { + /* + * smp_mb() present in sbitmap_queue_clear() or implied in + * .end_io is for ordering writing .device_busy in + * scsi_device_unbusy() and reading sdev->restarts. + */ + int old = atomic_read(&sdev->restarts); + + /* + * ->restarts has to be kept as non-zero if new budget + * contention occurs. + * + * No need to run queue when either another re-run + * queue wins in updating ->restarts or a new budget + * contention occurs. + */ + if (old && atomic_cmpxchg(&sdev->restarts, old, 0) == old) + blk_mq_run_hw_queues(sdev->request_queue, true); + } } /* Returns false when no more bytes to process, true if there are more */ @@ -1612,7 +1629,30 @@ static bool scsi_mq_get_budget(struct request_queue *q) { struct scsi_device *sdev = q->queuedata; - return scsi_dev_queue_ready(q, sdev); + if (scsi_dev_queue_ready(q, sdev)) + return true; + + atomic_inc(&sdev->restarts); + + /* + * Orders atomic_inc(&sdev->restarts) and atomic_read(&sdev->device_busy). + * .restarts must be incremented before .device_busy is read because the + * code in scsi_run_queue_async() depends on the order of these operations. + */ + smp_mb__after_atomic(); + + /* + * If all in-flight requests originated from this LUN are completed + * before reading .device_busy, sdev->device_busy will be observed as + * zero, then blk_mq_delay_run_hw_queues() will dispatch this request + * soon. Otherwise, completion of one of these requests will observe + * the .restarts flag, and the request queue will be run for handling + * this request, see scsi_end_request(). + */ + if (unlikely(atomic_read(&sdev->device_busy) == 0 && + !scsi_device_blocked(sdev))) + blk_mq_delay_run_hw_queues(sdev->request_queue, SCSI_QUEUE_DELAY); + return false; } static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx, diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h index bc5909033d13..1a5c9a3df6d6 100644 --- a/include/scsi/scsi_device.h +++ b/include/scsi/scsi_device.h @@ -109,6 +109,7 @@ struct scsi_device { atomic_t device_busy; /* commands actually active on LLDD */ atomic_t device_blocked; /* Device returned QUEUE_FULL. */ + atomic_t restarts; spinlock_t list_lock; struct list_head starved_entry; unsigned short queue_depth; /* How deep of a queue we want */ -- cgit v1.2.3 From 52ef2743f16cca9884a9dfd3a8bb013b8e136e4a Mon Sep 17 00:00:00 2001 From: Bodo Stroesser Date: Thu, 10 Sep 2020 17:50:39 +0200 Subject: scsi: target: tcmu: Join tcmu_cmd_get_data_length() and tcmu_cmd_get_block_cnt() Simplify code by joining tcmu_cmd_get_data_length() and tcmu_cmd_get_block_cnt() into tcmu_cmd_set_block_cnts(). The new function sets tcmu_cmd->dbi_cnt and also the new field tcmu_cmd->dbi_bidi_cnt which is needed for further enhancements in following patches. Simplify some code by using tcmu_cmd->dbi(_bidi)_cnt instead of calculation from length. Please note: The calculation of the number of dbis needed for bidi was wrong. It was based on the length of the first bidi sg only. I changed it to correctly sum up entire length of all bidi sgs. Link: https://lore.kernel.org/r/20200910155041.17654-2-bstroesser@ts.fujitsu.com Acked-by: Mike Christie Signed-off-by: Bodo Stroesser Signed-off-by: Martin K. Petersen --- drivers/target/target_core_user.c | 53 +++++++++++++++++---------------------- 1 file changed, 23 insertions(+), 30 deletions(-) diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 9775670351c6..411172d772b4 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -177,6 +177,7 @@ struct tcmu_cmd { /* Can't use se_cmd when cleaning up expired cmds, because if cmd has been completed then accessing se_cmd is off limits */ uint32_t dbi_cnt; + uint32_t dbi_bidi_cnt; uint32_t dbi_cur; uint32_t *dbi; @@ -558,25 +559,20 @@ static inline void tcmu_free_cmd(struct tcmu_cmd *tcmu_cmd) kmem_cache_free(tcmu_cmd_cache, tcmu_cmd); } -static inline size_t tcmu_cmd_get_data_length(struct tcmu_cmd *tcmu_cmd) +static inline void tcmu_cmd_set_block_cnts(struct tcmu_cmd *cmd) { - struct se_cmd *se_cmd = tcmu_cmd->se_cmd; - size_t data_length = round_up(se_cmd->data_length, DATA_BLOCK_SIZE); + int i, len; + struct se_cmd *se_cmd = cmd->se_cmd; + + cmd->dbi_cnt = DIV_ROUND_UP(se_cmd->data_length, DATA_BLOCK_SIZE); if (se_cmd->se_cmd_flags & SCF_BIDI) { BUG_ON(!(se_cmd->t_bidi_data_sg && se_cmd->t_bidi_data_nents)); - data_length += round_up(se_cmd->t_bidi_data_sg->length, - DATA_BLOCK_SIZE); + for (i = 0, len = 0; i < se_cmd->t_bidi_data_nents; i++) + len += se_cmd->t_bidi_data_sg[i].length; + cmd->dbi_bidi_cnt = DIV_ROUND_UP(len, DATA_BLOCK_SIZE); + cmd->dbi_cnt += cmd->dbi_bidi_cnt; } - - return data_length; -} - -static inline uint32_t tcmu_cmd_get_block_cnt(struct tcmu_cmd *tcmu_cmd) -{ - size_t data_length = tcmu_cmd_get_data_length(tcmu_cmd); - - return data_length / DATA_BLOCK_SIZE; } static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) @@ -593,8 +589,7 @@ static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) tcmu_cmd->se_cmd = se_cmd; tcmu_cmd->tcmu_dev = udev; - tcmu_cmd_reset_dbi_cur(tcmu_cmd); - tcmu_cmd->dbi_cnt = tcmu_cmd_get_block_cnt(tcmu_cmd); + tcmu_cmd_set_block_cnts(tcmu_cmd); tcmu_cmd->dbi = kcalloc(tcmu_cmd->dbi_cnt, sizeof(uint32_t), GFP_NOIO); if (!tcmu_cmd->dbi) { @@ -767,13 +762,12 @@ static void gather_data_area(struct tcmu_dev *udev, struct tcmu_cmd *cmd, data_sg = se_cmd->t_data_sg; data_nents = se_cmd->t_data_nents; } else { - /* * For bidi case, the first count blocks are for Data-Out * buffer blocks, and before gathering the Data-In buffer - * the Data-Out buffer blocks should be discarded. + * the Data-Out buffer blocks should be skipped. */ - count = DIV_ROUND_UP(se_cmd->data_length, DATA_BLOCK_SIZE); + count = cmd->dbi_cnt - cmd->dbi_bidi_cnt; data_sg = se_cmd->t_bidi_data_sg; data_nents = se_cmd->t_bidi_data_nents; @@ -827,11 +821,9 @@ static inline size_t spc_bitmap_free(unsigned long *bitmap, uint32_t thresh) * Called with ring lock held. */ static bool is_ring_space_avail(struct tcmu_dev *udev, struct tcmu_cmd *cmd, - size_t cmd_size, size_t data_needed) + size_t cmd_size) { struct tcmu_mailbox *mb = udev->mb_addr; - uint32_t blocks_needed = (data_needed + DATA_BLOCK_SIZE - 1) - / DATA_BLOCK_SIZE; size_t space, cmd_needed; u32 cmd_head; @@ -855,23 +847,23 @@ static bool is_ring_space_avail(struct tcmu_dev *udev, struct tcmu_cmd *cmd, return false; } - if (!data_needed) + if (!cmd || !cmd->dbi_cnt) return true; /* try to check and get the data blocks as needed */ space = spc_bitmap_free(udev->data_bitmap, udev->dbi_thresh); - if ((space * DATA_BLOCK_SIZE) < data_needed) { + if (space < cmd->dbi_cnt) { unsigned long blocks_left = (udev->max_blocks - udev->dbi_thresh) + space; - if (blocks_left < blocks_needed) { + if (blocks_left < cmd->dbi_cnt) { pr_debug("no data space: only %lu available, but ask for %zu\n", blocks_left * DATA_BLOCK_SIZE, - data_needed); + cmd->dbi_cnt * DATA_BLOCK_SIZE); return false; } - udev->dbi_thresh += blocks_needed; + udev->dbi_thresh += cmd->dbi_cnt; if (udev->dbi_thresh > udev->max_blocks) udev->dbi_thresh = udev->max_blocks; } @@ -990,7 +982,8 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err) uint32_t cmd_head; uint64_t cdb_off; bool copy_to_data_area; - size_t data_length = tcmu_cmd_get_data_length(tcmu_cmd); + /* size of data buffer needed */ + size_t data_length = (size_t)tcmu_cmd->dbi_cnt * DATA_BLOCK_SIZE; *scsi_err = TCM_NO_SENSE; @@ -1031,7 +1024,7 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err) return -1; } - if (!is_ring_space_avail(udev, tcmu_cmd, command_size, data_length)) { + if (!is_ring_space_avail(udev, tcmu_cmd, command_size)) { /* * Don't leave commands partially setup because the unmap * thread might need the blocks to make forward progress. @@ -1145,7 +1138,7 @@ queue_tmr_ring(struct tcmu_dev *udev, struct tcmu_tmr *tmr) cmd_size = round_up(sizeof(*entry) + id_list_sz, TCMU_OP_ALIGN_SIZE); if (!list_empty(&udev->tmr_queue) || - !is_ring_space_avail(udev, NULL, cmd_size, 0)) { + !is_ring_space_avail(udev, NULL, cmd_size)) { list_add_tail(&tmr->queue_entry, &udev->tmr_queue); pr_debug("adding tmr %p on dev %s to TMR ring space wait queue\n", tmr, udev->name); -- cgit v1.2.3 From 7e98905e9d0de04f5638a12cef902f7703436e04 Mon Sep 17 00:00:00 2001 From: Bodo Stroesser Date: Thu, 10 Sep 2020 17:50:40 +0200 Subject: scsi: target: tcmu: Optimize queue_cmd_ring() queue_cmd_ring() needs to check whether there is enough space in cmd ring and data area for the cmd to queue. Currently the sequence is: 1) Calculate size the cmd will occupy on the ring based on estimation of needed iovs. 2) Check whether there is enough space on the ring based on size from 1) 3) Allocate buffers in data area. 4) Calculate number of iovs the command really needs while copying incoming data (if any) to data area. 5) Re-calculate real size of cmd on ring based on real number of iovs. 6) Set up possible padding and cmd on the ring. Step 1) must not underestimate the cmd size so use max possible number of iovs for the given I/O data size. The resulting overestimation can be really high so this sequence is not ideal. The earliest the real number of iovs can be calculated is after data buffer allocation. Therefore rework the code to implement the following sequence: A) Allocate buffers on data area and calculate number of necessary iovs during this. B) Calculate real size of cmd on ring based on number of iovs. C) Check whether there is enough space on the ring. D) Set up possible padding and cmd on the ring. The new sequence enforces the split of new function tcmu_alloc_data_space() from is_ring_space_avail(). Using this function, change queue_cmd_ring() according to the new sequence. Change routines called by tcmu_alloc_data_space() to allow calculating and returning the iov count. Remove counting of iovs in scatter_data_area(). Link: https://lore.kernel.org/r/20200910155041.17654-3-bstroesser@ts.fujitsu.com Acked-by: Mike Christie Signed-off-by: Bodo Stroesser Signed-off-by: Martin K. Petersen --- drivers/target/target_core_user.c | 184 +++++++++++++++++++++----------------- 1 file changed, 102 insertions(+), 82 deletions(-) diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index 411172d772b4..e4813bf41ee0 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -493,15 +493,16 @@ static void tcmu_cmd_free_data(struct tcmu_cmd *tcmu_cmd, uint32_t len) clear_bit(tcmu_cmd->dbi[i], udev->data_bitmap); } -static inline bool tcmu_get_empty_block(struct tcmu_dev *udev, - struct tcmu_cmd *tcmu_cmd) +static inline int tcmu_get_empty_block(struct tcmu_dev *udev, + struct tcmu_cmd *tcmu_cmd, + int prev_dbi, int *iov_cnt) { struct page *page; int ret, dbi; dbi = find_first_zero_bit(udev->data_bitmap, udev->dbi_thresh); if (dbi == udev->dbi_thresh) - return false; + return -1; page = radix_tree_lookup(&udev->data_blocks, dbi); if (!page) { @@ -525,24 +526,30 @@ static inline bool tcmu_get_empty_block(struct tcmu_dev *udev, set_bit(dbi, udev->data_bitmap); tcmu_cmd_set_dbi(tcmu_cmd, dbi); - return true; + if (dbi != prev_dbi + 1) + *iov_cnt += 1; + + return dbi; err_insert: __free_page(page); err_alloc: atomic_dec(&global_db_count); - return false; + return -1; } -static bool tcmu_get_empty_blocks(struct tcmu_dev *udev, - struct tcmu_cmd *tcmu_cmd) +static int tcmu_get_empty_blocks(struct tcmu_dev *udev, + struct tcmu_cmd *tcmu_cmd, int dbi_cnt) { - int i; + /* start value of dbi + 1 must not be a valid dbi */ + int dbi = -2; + int i, iov_cnt = 0; - for (i = tcmu_cmd->dbi_cur; i < tcmu_cmd->dbi_cnt; i++) { - if (!tcmu_get_empty_block(udev, tcmu_cmd)) - return false; + for (i = 0; i < dbi_cnt; i++) { + dbi = tcmu_get_empty_block(udev, tcmu_cmd, dbi, &iov_cnt); + if (dbi < 0) + return -1; } - return true; + return iov_cnt; } static inline struct page * @@ -639,13 +646,12 @@ static inline size_t head_to_end(size_t head, size_t size) return size - head; } -static inline void new_iov(struct iovec **iov, int *iov_cnt) +static inline void new_iov(struct iovec **iov, bool first) { struct iovec *iovec; - if (*iov_cnt != 0) + if (!first) (*iov)++; - (*iov_cnt)++; iovec = *iov; memset(iovec, 0, sizeof(struct iovec)); @@ -668,8 +674,7 @@ static inline size_t iov_tail(struct iovec *iov) static void scatter_data_area(struct tcmu_dev *udev, struct tcmu_cmd *tcmu_cmd, struct scatterlist *data_sg, - unsigned int data_nents, struct iovec **iov, - int *iov_cnt, bool copy_data) + unsigned int data_nents, struct iovec **iov, bool copy_data) { int i, dbi; int block_remaining = 0; @@ -677,6 +682,7 @@ static void scatter_data_area(struct tcmu_dev *udev, size_t copy_bytes, to_offset, offset; struct scatterlist *sg; struct page *page; + bool first = true; for_each_sg(data_sg, sg, data_nents, i) { int sg_remaining = sg->length; @@ -707,8 +713,7 @@ static void scatter_data_area(struct tcmu_dev *udev, */ copy_bytes = min_t(size_t, sg_remaining, block_remaining); - if (*iov_cnt != 0 && - to_offset == iov_tail(*iov)) { + if (!first && to_offset == iov_tail(*iov)) { /* * Will append to the current iovec, because * the current block page is next to the @@ -721,9 +726,10 @@ static void scatter_data_area(struct tcmu_dev *udev, * first time here or the current block page * is not next to the previous one. */ - new_iov(iov, iov_cnt); + new_iov(iov, first); (*iov)->iov_base = (void __user *)to_offset; (*iov)->iov_len = copy_bytes; + first = false; } if (copy_data) { @@ -815,13 +821,11 @@ static inline size_t spc_bitmap_free(unsigned long *bitmap, uint32_t thresh) } /* - * We can't queue a command until we have space available on the cmd ring *and* - * space available on the data area. + * We can't queue a command until we have space available on the cmd ring. * * Called with ring lock held. */ -static bool is_ring_space_avail(struct tcmu_dev *udev, struct tcmu_cmd *cmd, - size_t cmd_size) +static bool is_ring_space_avail(struct tcmu_dev *udev, size_t cmd_size) { struct tcmu_mailbox *mb = udev->mb_addr; size_t space, cmd_needed; @@ -846,9 +850,22 @@ static bool is_ring_space_avail(struct tcmu_dev *udev, struct tcmu_cmd *cmd, udev->cmdr_last_cleaned, udev->cmdr_size); return false; } + return true; +} + +/* + * We have to allocate data buffers before we can queue a command. + * Returns -1 on error (not enough space) or number of needed iovs on success + * + * Called with ring lock held. + */ +static int tcmu_alloc_data_space(struct tcmu_dev *udev, struct tcmu_cmd *cmd, + int *iov_bidi_cnt) +{ + int space, iov_cnt = 0, ret = 0; - if (!cmd || !cmd->dbi_cnt) - return true; + if (!cmd->dbi_cnt) + goto wr_iov_cnts; /* try to check and get the data blocks as needed */ space = spc_bitmap_free(udev->data_bitmap, udev->dbi_thresh); @@ -857,10 +874,10 @@ static bool is_ring_space_avail(struct tcmu_dev *udev, struct tcmu_cmd *cmd, (udev->max_blocks - udev->dbi_thresh) + space; if (blocks_left < cmd->dbi_cnt) { - pr_debug("no data space: only %lu available, but ask for %zu\n", + pr_debug("no data space: only %lu available, but ask for %lu\n", blocks_left * DATA_BLOCK_SIZE, cmd->dbi_cnt * DATA_BLOCK_SIZE); - return false; + return -1; } udev->dbi_thresh += cmd->dbi_cnt; @@ -868,7 +885,19 @@ static bool is_ring_space_avail(struct tcmu_dev *udev, struct tcmu_cmd *cmd, udev->dbi_thresh = udev->max_blocks; } - return tcmu_get_empty_blocks(udev, cmd); + iov_cnt = tcmu_get_empty_blocks(udev, cmd, + cmd->dbi_cnt - cmd->dbi_bidi_cnt); + if (iov_cnt < 0) + return -1; + + if (cmd->dbi_bidi_cnt) { + ret = tcmu_get_empty_blocks(udev, cmd, cmd->dbi_bidi_cnt); + if (ret < 0) + return -1; + } +wr_iov_cnts: + *iov_bidi_cnt = ret; + return iov_cnt + ret; } static inline size_t tcmu_cmd_get_base_cmd_size(size_t iov_cnt) @@ -978,7 +1007,7 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err) struct tcmu_mailbox *mb = udev->mb_addr; struct tcmu_cmd_entry *entry; struct iovec *iov; - int iov_cnt, cmd_id; + int iov_cnt, iov_bidi_cnt, cmd_id; uint32_t cmd_head; uint64_t cdb_off; bool copy_to_data_area; @@ -997,42 +1026,54 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err) return -1; } + if (!list_empty(&udev->qfull_queue)) + goto queue; + + if (data_length > udev->data_size) { + pr_warn("TCMU: Request of size %zu is too big for %zu data area\n", + data_length, udev->data_size); + *scsi_err = TCM_INVALID_CDB_FIELD; + return -1; + } + + iov_cnt = tcmu_alloc_data_space(udev, tcmu_cmd, &iov_bidi_cnt); + if (iov_cnt < 0) + goto free_and_queue; + /* * Must be a certain minimum size for response sense info, but * also may be larger if the iov array is large. - * - * We prepare as many iovs as possbile for potential uses here, - * because it's expensive to tell how many regions are freed in - * the bitmap & global data pool, as the size calculated here - * will only be used to do the checks. - * - * The size will be recalculated later as actually needed to save - * cmd area memories. */ - base_command_size = tcmu_cmd_get_base_cmd_size(tcmu_cmd->dbi_cnt); + base_command_size = tcmu_cmd_get_base_cmd_size(iov_cnt); command_size = tcmu_cmd_get_cmd_size(tcmu_cmd, base_command_size); - if (!list_empty(&udev->qfull_queue)) - goto queue; - - if ((command_size > (udev->cmdr_size / 2)) || - data_length > udev->data_size) { - pr_warn("TCMU: Request of size %zu/%zu is too big for %u/%zu " - "cmd ring/data area\n", command_size, data_length, - udev->cmdr_size, udev->data_size); + if (command_size > (udev->cmdr_size / 2)) { + pr_warn("TCMU: Request of size %zu is too big for %u cmd ring\n", + command_size, udev->cmdr_size); + tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cur); *scsi_err = TCM_INVALID_CDB_FIELD; return -1; } - if (!is_ring_space_avail(udev, tcmu_cmd, command_size)) { + if (!is_ring_space_avail(udev, command_size)) /* * Don't leave commands partially setup because the unmap * thread might need the blocks to make forward progress. */ - tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cur); - tcmu_cmd_reset_dbi_cur(tcmu_cmd); - goto queue; + goto free_and_queue; + + cmd_id = idr_alloc(&udev->commands, tcmu_cmd, 1, USHRT_MAX, GFP_NOWAIT); + if (cmd_id < 0) { + pr_err("tcmu: Could not allocate cmd id.\n"); + + tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cnt); + *scsi_err = TCM_OUT_OF_RESOURCES; + return -1; } + tcmu_cmd->cmd_id = cmd_id; + + pr_debug("allocated cmd id %u for cmd %p dev %s\n", tcmu_cmd->cmd_id, + tcmu_cmd, udev->name); cmd_head = ring_insert_padding(udev, command_size); @@ -1040,52 +1081,27 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err) memset(entry, 0, command_size); tcmu_hdr_set_op(&entry->hdr.len_op, TCMU_OP_CMD); - /* Handle allocating space from the data area */ + /* prepare iov list and copy data to data area if necessary */ tcmu_cmd_reset_dbi_cur(tcmu_cmd); iov = &entry->req.iov[0]; - iov_cnt = 0; copy_to_data_area = (se_cmd->data_direction == DMA_TO_DEVICE || se_cmd->se_cmd_flags & SCF_BIDI); scatter_data_area(udev, tcmu_cmd, se_cmd->t_data_sg, - se_cmd->t_data_nents, &iov, &iov_cnt, - copy_to_data_area); - entry->req.iov_cnt = iov_cnt; + se_cmd->t_data_nents, &iov, copy_to_data_area); + entry->req.iov_cnt = iov_cnt - iov_bidi_cnt; /* Handle BIDI commands */ - iov_cnt = 0; if (se_cmd->se_cmd_flags & SCF_BIDI) { iov++; scatter_data_area(udev, tcmu_cmd, se_cmd->t_bidi_data_sg, - se_cmd->t_bidi_data_nents, &iov, &iov_cnt, - false); + se_cmd->t_bidi_data_nents, &iov, false); + entry->req.iov_bidi_cnt = iov_bidi_cnt; } - entry->req.iov_bidi_cnt = iov_cnt; - - cmd_id = idr_alloc(&udev->commands, tcmu_cmd, 1, USHRT_MAX, GFP_NOWAIT); - if (cmd_id < 0) { - pr_err("tcmu: Could not allocate cmd id.\n"); - - tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cnt); - *scsi_err = TCM_OUT_OF_RESOURCES; - return -1; - } - tcmu_cmd->cmd_id = cmd_id; - - pr_debug("allocated cmd id %u for cmd %p dev %s\n", tcmu_cmd->cmd_id, - tcmu_cmd, udev->name); tcmu_setup_cmd_timer(tcmu_cmd, udev->cmd_time_out, &udev->cmd_timer); entry->hdr.cmd_id = tcmu_cmd->cmd_id; - /* - * Recalaulate the command's base size and size according - * to the actual needs - */ - base_command_size = tcmu_cmd_get_base_cmd_size(entry->req.iov_cnt + - entry->req.iov_bidi_cnt); - command_size = tcmu_cmd_get_cmd_size(tcmu_cmd, base_command_size); - tcmu_hdr_set_len(&entry->hdr.len_op, command_size); /* All offsets relative to mb_addr, not start of entry! */ @@ -1104,6 +1120,10 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err) return 0; +free_and_queue: + tcmu_cmd_free_data(tcmu_cmd, tcmu_cmd->dbi_cur); + tcmu_cmd_reset_dbi_cur(tcmu_cmd); + queue: if (add_to_qfull_queue(tcmu_cmd)) { *scsi_err = TCM_OUT_OF_RESOURCES; @@ -1138,7 +1158,7 @@ queue_tmr_ring(struct tcmu_dev *udev, struct tcmu_tmr *tmr) cmd_size = round_up(sizeof(*entry) + id_list_sz, TCMU_OP_ALIGN_SIZE); if (!list_empty(&udev->tmr_queue) || - !is_ring_space_avail(udev, NULL, cmd_size)) { + !is_ring_space_avail(udev, cmd_size)) { list_add_tail(&tmr->queue_entry, &udev->tmr_queue); pr_debug("adding tmr %p on dev %s to TMR ring space wait queue\n", tmr, udev->name); -- cgit v1.2.3 From 3c9a7c58ea3d8a9d2f7377db3fdb9d7b4da1d480 Mon Sep 17 00:00:00 2001 From: Bodo Stroesser Date: Thu, 10 Sep 2020 17:50:41 +0200 Subject: scsi: target: tcmu: Optimize scatter_data_area() scatter_data_area() has two purposes: 1) Create the iovs for the data area buffer of a SCSI cmd. 2) If there is data in DMA_TO_DEVICE direction, copy the data from sg_list to data area buffer. Both are done in a common loop. In case of DMA_FROM_DEVICE data transfer, scatter_data_area() is called with parameter copy_data = false. But this flag is just used to skip memcpy() for data, while radix_tree_lookup still is called for every dbi of the area area buffer, and kmap and kunmap are called for every page from sg_list and data_area as well as flush_dcache_page() for the data area pages. Since the only thing to do with copy_data = false would be to set up the iovs, this is a noticeable overhead. Rework the iov creation in the main loop of scatter_data_area() providing the new function new_block_to_iov(). Based on this, create the short new function tcmu_setup_iovs() that only writes the iovs with no overhead. This new function is now called instead of scatter_data_area() for bidi buffers and for data buffers in those cases where memcpy() would have been skipped. Link: https://lore.kernel.org/r/20200910155041.17654-4-bstroesser@ts.fujitsu.com Acked-by: Mike Christie Signed-off-by: Bodo Stroesser Signed-off-by: Martin K. Petersen --- drivers/target/target_core_user.c | 139 +++++++++++++++++--------------------- 1 file changed, 63 insertions(+), 76 deletions(-) diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index e4813bf41ee0..fa001d7ab6e6 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -181,6 +181,8 @@ struct tcmu_cmd { uint32_t dbi_cur; uint32_t *dbi; + uint32_t data_len_bidi; + unsigned long deadline; #define TCMU_CMD_BIT_EXPIRED 0 @@ -579,9 +581,47 @@ static inline void tcmu_cmd_set_block_cnts(struct tcmu_cmd *cmd) len += se_cmd->t_bidi_data_sg[i].length; cmd->dbi_bidi_cnt = DIV_ROUND_UP(len, DATA_BLOCK_SIZE); cmd->dbi_cnt += cmd->dbi_bidi_cnt; + cmd->data_len_bidi = len; } } +static int new_block_to_iov(struct tcmu_dev *udev, struct tcmu_cmd *cmd, + struct iovec **iov, int prev_dbi, int *remain) +{ + /* Get the next dbi */ + int dbi = tcmu_cmd_get_dbi(cmd); + /* Do not add more than DATA_BLOCK_SIZE to iov */ + int len = min_t(int, DATA_BLOCK_SIZE, *remain); + + *remain -= len; + /* + * The following code will gather and map the blocks to the same iovec + * when the blocks are all next to each other. + */ + if (dbi != prev_dbi + 1) { + /* dbi is not next to previous dbi, so start new iov */ + if (prev_dbi >= 0) + (*iov)++; + /* write offset relative to mb_addr */ + (*iov)->iov_base = (void __user *) + (udev->data_off + dbi * DATA_BLOCK_SIZE); + } + (*iov)->iov_len += len; + + return dbi; +} + +static void tcmu_setup_iovs(struct tcmu_dev *udev, struct tcmu_cmd *cmd, + struct iovec **iov, int data_length) +{ + /* start value of dbi + 1 must not be a valid dbi */ + int dbi = -2; + + /* We prepare the IOVs for DMA_FROM_DEVICE transfer direction */ + while (data_length > 0) + dbi = new_block_to_iov(udev, cmd, iov, dbi, &data_length); +} + static struct tcmu_cmd *tcmu_alloc_cmd(struct se_cmd *se_cmd) { struct se_device *se_dev = se_cmd->se_dev; @@ -646,45 +686,22 @@ static inline size_t head_to_end(size_t head, size_t size) return size - head; } -static inline void new_iov(struct iovec **iov, bool first) -{ - struct iovec *iovec; - - if (!first) - (*iov)++; - - iovec = *iov; - memset(iovec, 0, sizeof(struct iovec)); -} - #define UPDATE_HEAD(head, used, size) smp_store_release(&head, ((head % size) + used) % size) -/* offset is relative to mb_addr */ -static inline size_t get_block_offset_user(struct tcmu_dev *dev, - int dbi, int remaining) -{ - return dev->data_off + dbi * DATA_BLOCK_SIZE + - DATA_BLOCK_SIZE - remaining; -} - -static inline size_t iov_tail(struct iovec *iov) -{ - return (size_t)iov->iov_base + iov->iov_len; -} - -static void scatter_data_area(struct tcmu_dev *udev, - struct tcmu_cmd *tcmu_cmd, struct scatterlist *data_sg, - unsigned int data_nents, struct iovec **iov, bool copy_data) +static void scatter_data_area(struct tcmu_dev *udev, struct tcmu_cmd *tcmu_cmd, + struct iovec **iov) { - int i, dbi; + struct se_cmd *se_cmd = tcmu_cmd->se_cmd; + /* start value of dbi + 1 must not be a valid dbi */ + int i, dbi = -2; int block_remaining = 0; + int data_len = se_cmd->data_length; void *from, *to = NULL; - size_t copy_bytes, to_offset, offset; + size_t copy_bytes, offset; struct scatterlist *sg; struct page *page; - bool first = true; - for_each_sg(data_sg, sg, data_nents, i) { + for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) { int sg_remaining = sg->length; from = kmap_atomic(sg_page(sg)) + sg->offset; while (sg_remaining > 0) { @@ -694,50 +711,19 @@ static void scatter_data_area(struct tcmu_dev *udev, kunmap_atomic(to); } - block_remaining = DATA_BLOCK_SIZE; - dbi = tcmu_cmd_get_dbi(tcmu_cmd); + /* get next dbi and add to IOVs */ + dbi = new_block_to_iov(udev, tcmu_cmd, iov, dbi, + &data_len); page = tcmu_get_block_page(udev, dbi); to = kmap_atomic(page); + block_remaining = DATA_BLOCK_SIZE; } - /* - * Covert to virtual offset of the ring data area. - */ - to_offset = get_block_offset_user(udev, dbi, - block_remaining); - - /* - * The following code will gather and map the blocks - * to the same iovec when the blocks are all next to - * each other. - */ copy_bytes = min_t(size_t, sg_remaining, block_remaining); - if (!first && to_offset == iov_tail(*iov)) { - /* - * Will append to the current iovec, because - * the current block page is next to the - * previous one. - */ - (*iov)->iov_len += copy_bytes; - } else { - /* - * Will allocate a new iovec because we are - * first time here or the current block page - * is not next to the previous one. - */ - new_iov(iov, first); - (*iov)->iov_base = (void __user *)to_offset; - (*iov)->iov_len = copy_bytes; - first = false; - } - - if (copy_data) { - offset = DATA_BLOCK_SIZE - block_remaining; - memcpy(to + offset, - from + sg->length - sg_remaining, - copy_bytes); - } + offset = DATA_BLOCK_SIZE - block_remaining; + memcpy(to + offset, from + sg->length - sg_remaining, + copy_bytes); sg_remaining -= copy_bytes; block_remaining -= copy_bytes; @@ -1010,7 +996,6 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err) int iov_cnt, iov_bidi_cnt, cmd_id; uint32_t cmd_head; uint64_t cdb_off; - bool copy_to_data_area; /* size of data buffer needed */ size_t data_length = (size_t)tcmu_cmd->dbi_cnt * DATA_BLOCK_SIZE; @@ -1084,17 +1069,19 @@ static int queue_cmd_ring(struct tcmu_cmd *tcmu_cmd, sense_reason_t *scsi_err) /* prepare iov list and copy data to data area if necessary */ tcmu_cmd_reset_dbi_cur(tcmu_cmd); iov = &entry->req.iov[0]; - copy_to_data_area = (se_cmd->data_direction == DMA_TO_DEVICE - || se_cmd->se_cmd_flags & SCF_BIDI); - scatter_data_area(udev, tcmu_cmd, se_cmd->t_data_sg, - se_cmd->t_data_nents, &iov, copy_to_data_area); + + if (se_cmd->data_direction == DMA_TO_DEVICE || + se_cmd->se_cmd_flags & SCF_BIDI) + scatter_data_area(udev, tcmu_cmd, &iov); + else + tcmu_setup_iovs(udev, tcmu_cmd, &iov, se_cmd->data_length); + entry->req.iov_cnt = iov_cnt - iov_bidi_cnt; /* Handle BIDI commands */ if (se_cmd->se_cmd_flags & SCF_BIDI) { iov++; - scatter_data_area(udev, tcmu_cmd, se_cmd->t_bidi_data_sg, - se_cmd->t_bidi_data_nents, &iov, false); + tcmu_setup_iovs(udev, tcmu_cmd, &iov, tcmu_cmd->data_len_bidi); entry->req.iov_bidi_cnt = iov_bidi_cnt; } -- cgit v1.2.3 From 2584e5aef87a921fc4bf23e2d2ea98c5277f0a0f Mon Sep 17 00:00:00 2001 From: Brian King Date: Wed, 16 Sep 2020 15:09:59 -0500 Subject: scsi: ibmvfc: Protect vhost->task_set increment by the host lock In the discovery thread, ibmvfc does a vhost->task_set++ without any lock held. This could result in two targets getting the same cancel key, which could have strange effects in error recovery. The actual probability of this occurring should be extremely small, since this should all be done in a single threaded loop from the discovery thread, but let's fix it up anyway to be safe. Link: https://lore.kernel.org/r/1600286999-22059-1-git-send-email-brking@linux.vnet.ibm.com Signed-off-by: Brian King Signed-off-by: Martin K. Petersen --- drivers/scsi/ibmvscsi/ibmvfc.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/ibmvscsi/ibmvfc.c b/drivers/scsi/ibmvscsi/ibmvfc.c index e641aaa1a0f6..e09e0310b4c8 100644 --- a/drivers/scsi/ibmvscsi/ibmvfc.c +++ b/drivers/scsi/ibmvscsi/ibmvfc.c @@ -4184,11 +4184,11 @@ static int ibmvfc_alloc_target(struct ibmvfc_host *vhost, tgt->wwpn = wwpn; tgt->vhost = vhost; tgt->need_login = 1; - tgt->cancel_key = vhost->task_set++; timer_setup(&tgt->timer, ibmvfc_adisc_timeout, 0); kref_init(&tgt->kref); ibmvfc_init_tgt(tgt, ibmvfc_tgt_implicit_logout); spin_lock_irqsave(vhost->host->host_lock, flags); + tgt->cancel_key = vhost->task_set++; list_add_tail(&tgt->queue, &vhost->targets); unlock_out: -- cgit v1.2.3 From dd8d0bf6fb72bc73dc534d0d222e769e71d2202c Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Thu, 3 Sep 2020 21:51:16 -0700 Subject: scsi: qla2xxx: Fix I/O failures during remote port toggle testing Driver was using a lower value for dev_loss_tmo making it more prone to I/O failures during remote port toggle testing. Set dev_loss_tmo to zero during remote port registration to allow nvme-fc default dev_loss_tmo to be used, which is higher than what driver was using. Link: https://lore.kernel.org/r/20200904045128.23631-2-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Himanshu Madhani Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_nvme.c | 2 +- drivers/scsi/qla2xxx/qla_nvme.h | 3 --- 2 files changed, 1 insertion(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 0ded9a778bb0..b05e4545ef5f 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -42,7 +42,7 @@ int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport) req.port_name = wwn_to_u64(fcport->port_name); req.node_name = wwn_to_u64(fcport->node_name); req.port_role = 0; - req.dev_loss_tmo = NVME_FC_DEV_LOSS_TMO; + req.dev_loss_tmo = 0; if (fcport->nvme_prli_service_param & NVME_PRLI_SP_INITIATOR) req.port_role = FC_PORT_ROLE_NVME_INITIATOR; diff --git a/drivers/scsi/qla2xxx/qla_nvme.h b/drivers/scsi/qla2xxx/qla_nvme.h index fbb844226630..cf45a5b277f1 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.h +++ b/drivers/scsi/qla2xxx/qla_nvme.h @@ -14,9 +14,6 @@ #include "qla_def.h" #include "qla_dsd.h" -/* default dev loss time (seconds) before transport tears down ctrl */ -#define NVME_FC_DEV_LOSS_TMO 30 - #define NVME_ATIO_CMD_OFF 32 #define NVME_FIRST_PACKET_CMDLEN (64 - NVME_ATIO_CMD_OFF) #define Q2T_NVME_NUM_TAGS 2048 -- cgit v1.2.3 From 1e98fb0f9208da058e2b6627f9f19fa0a95d05cd Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Thu, 3 Sep 2020 21:51:17 -0700 Subject: scsi: qla2xxx: Setup debugfs entries for remote ports Create a base for adding remote port related entries in debugfs. Link: https://lore.kernel.org/r/20200904045128.23631-3-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Himanshu Madhani Signed-off-by: Saurav Kashyap Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_def.h | 4 ++++ drivers/scsi/qla2xxx/qla_dfs.c | 42 ++++++++++++++++++++++++++++++++++++++- drivers/scsi/qla2xxx/qla_gbl.h | 2 ++ drivers/scsi/qla2xxx/qla_init.c | 2 ++ drivers/scsi/qla2xxx/qla_target.c | 2 ++ 5 files changed, 51 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index a165120d2976..6d6d74e3546c 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2544,6 +2544,8 @@ typedef struct fc_port { u8 last_login_state; u16 n2n_link_reset_cnt; u16 n2n_chip_reset; + + struct dentry *dfs_rport_dir; } fc_port_t; enum { @@ -4780,6 +4782,8 @@ typedef struct scsi_qla_host { uint16_t ql2xexchoffld; uint16_t ql2xiniexchg; + struct dentry *dfs_rport_root; + struct purex_list { struct list_head head; spinlock_t lock; diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index e62b2115235e..3c4b9b549b17 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -12,6 +12,29 @@ static struct dentry *qla2x00_dfs_root; static atomic_t qla2x00_dfs_root_count; +void +qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) +{ + char wwn[32]; + + if (!vha->dfs_rport_root || fp->dfs_rport_dir) + return; + + sprintf(wwn, "pn-%016llx", wwn_to_u64(fp->port_name)); + fp->dfs_rport_dir = debugfs_create_dir(wwn, vha->dfs_rport_root); + if (!fp->dfs_rport_dir) + return; +} + +void +qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp) +{ + if (!vha->dfs_rport_root || !fp->dfs_rport_dir) + return; + debugfs_remove_recursive(fp->dfs_rport_dir); + fp->dfs_rport_dir = NULL; +} + static int qla2x00_dfs_tgt_sess_show(struct seq_file *s, void *unused) { @@ -473,9 +496,21 @@ create_nodes: ha->tgt.dfs_tgt_sess = debugfs_create_file("tgt_sess", S_IRUSR, ha->dfs_dir, vha, &dfs_tgt_sess_ops); - if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha)) + if (IS_QLA27XX(ha) || IS_QLA83XX(ha) || IS_QLA28XX(ha)) { ha->tgt.dfs_naqp = debugfs_create_file("naqp", 0400, ha->dfs_dir, vha, &dfs_naqp_ops); + if (!ha->tgt.dfs_naqp) { + ql_log(ql_log_warn, vha, 0xd011, + "Unable to create debugFS naqp node.\n"); + goto out; + } + } + vha->dfs_rport_root = debugfs_create_dir("rports", ha->dfs_dir); + if (!vha->dfs_rport_root) { + ql_log(ql_log_warn, vha, 0xd012, + "Unable to create debugFS rports node.\n"); + goto out; + } out: return 0; } @@ -515,6 +550,11 @@ qla2x00_dfs_remove(scsi_qla_host_t *vha) ha->dfs_fce = NULL; } + if (vha->dfs_rport_root) { + debugfs_remove_recursive(vha->dfs_rport_root); + vha->dfs_rport_root = NULL; + } + if (ha->dfs_dir) { debugfs_remove(ha->dfs_dir); ha->dfs_dir = NULL; diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 0ced18f3104e..36c210c24f72 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -935,6 +935,8 @@ void qlt_clr_qp_table(struct scsi_qla_host *vha); void qlt_set_mode(struct scsi_qla_host *); int qla2x00_set_data_rate(scsi_qla_host_t *vha, uint16_t mode); extern void qla24xx_process_purex_list(struct purex_list *); +extern void qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp); +extern void qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp); /* nvme.c */ void qla_nvme_unregister_remote_port(struct fc_port *fcport); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 83a541d5b523..5051888a2416 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -5496,6 +5496,8 @@ qla2x00_update_fcport(scsi_qla_host_t *vha, fc_port_t *fcport) qla2x00_iidma_fcport(vha, fcport); + qla2x00_dfs_create_rport(vha, fcport); + if (NVME_TARGET(vha->hw, fcport)) { qla_nvme_register_remote(vha, fcport); qla2x00_set_fcport_disc_state(fcport, DSC_LOGIN_COMPLETE); diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index c339caef0360..1ef39a96c4c2 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -1111,6 +1111,8 @@ void qlt_free_session_done(struct work_struct *work) spin_unlock_irqrestore(&ha->tgt.sess_lock, flags); sess->free_pending = 0; + qla2x00_dfs_remove_rport(vha, sess); + ql_dbg(ql_dbg_disc, vha, 0xf001, "Unregistration of sess %p %8phC finished fcp_cnt %d\n", sess, sess->port_name, vha->fcport_count); -- cgit v1.2.3 From 27c8aa5e1b069b7629e41bba83b522f99132a6b6 Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Thu, 3 Sep 2020 21:51:18 -0700 Subject: scsi: qla2xxx: Allow dev_loss_tmo setting for FC-NVMe devices Add a remote port debugfs entry to get/set dev_loss_tmo for NVMe devices. Link: https://lore.kernel.org/r/20200904045128.23631-4-njavali@marvell.com Reported-by: kernel test robot Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Himanshu Madhani Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_dfs.c | 58 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 58 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 3c4b9b549b17..616ce891818d 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -12,6 +12,61 @@ static struct dentry *qla2x00_dfs_root; static atomic_t qla2x00_dfs_root_count; +#define QLA_DFS_RPORT_DEVLOSS_TMO 1 + +static int +qla_dfs_rport_get(struct fc_port *fp, int attr_id, u64 *val) +{ + switch (attr_id) { + case QLA_DFS_RPORT_DEVLOSS_TMO: + /* Only supported for FC-NVMe devices that are registered. */ + if (!(fp->nvme_flag & NVME_FLAG_REGISTERED)) + return -EIO; + *val = fp->nvme_remote_port->dev_loss_tmo; + break; + default: + return -EINVAL; + } + return 0; +} + +static int +qla_dfs_rport_set(struct fc_port *fp, int attr_id, u64 val) +{ + switch (attr_id) { + case QLA_DFS_RPORT_DEVLOSS_TMO: + /* Only supported for FC-NVMe devices that are registered. */ + if (!(fp->nvme_flag & NVME_FLAG_REGISTERED)) + return -EIO; +#if (IS_ENABLED(CONFIG_NVME_FC)) + return nvme_fc_set_remoteport_devloss(fp->nvme_remote_port, + val); +#else /* CONFIG_NVME_FC */ + return -EINVAL; +#endif /* CONFIG_NVME_FC */ + default: + return -EINVAL; + } + return 0; +} + +#define DEFINE_QLA_DFS_RPORT_RW_ATTR(_attr_id, _attr) \ +static int qla_dfs_rport_##_attr##_get(void *data, u64 *val) \ +{ \ + struct fc_port *fp = data; \ + return qla_dfs_rport_get(fp, _attr_id, val); \ +} \ +static int qla_dfs_rport_##_attr##_set(void *data, u64 val) \ +{ \ + struct fc_port *fp = data; \ + return qla_dfs_rport_set(fp, _attr_id, val); \ +} \ +DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_##_attr##_fops, \ + qla_dfs_rport_##_attr##_get, \ + qla_dfs_rport_##_attr##_set, "%llu\n") + +DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo); + void qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) { @@ -24,6 +79,9 @@ qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) fp->dfs_rport_dir = debugfs_create_dir(wwn, vha->dfs_rport_root); if (!fp->dfs_rport_dir) return; + if (NVME_TARGET(vha->hw, fp)) + debugfs_create_file("dev_loss_tmo", 0600, fp->dfs_rport_dir, + fp, &qla_dfs_rport_dev_loss_tmo_fops); } void -- cgit v1.2.3 From 3aac0c0fde17d2fdb65c7840bdf057a681f1e035 Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Thu, 3 Sep 2020 21:51:19 -0700 Subject: scsi: qla2xxx: Honor status qualifier in FCP_RSP per spec FCP-4 (referred FCP-4 rev-2b) identifies the earlier known "retry delay timer" field as "status qualifier", which is described in SAM-5 and later specs. This fix makes appropriate driver side modifications to honor the new definition. The SAM document referred was SAM-6 rev-5. Link: https://lore.kernel.org/r/20200904045128.23631-5-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Himanshu Madhani Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_fw.h | 2 +- drivers/scsi/qla2xxx/qla_inline.h | 38 ++++++++++++++++++++++++++++++++++---- drivers/scsi/qla2xxx/qla_isr.c | 18 +++++------------- 3 files changed, 40 insertions(+), 18 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_fw.h b/drivers/scsi/qla2xxx/qla_fw.h index bba1b77fba7e..f0052d75849c 100644 --- a/drivers/scsi/qla2xxx/qla_fw.h +++ b/drivers/scsi/qla2xxx/qla_fw.h @@ -619,7 +619,7 @@ struct sts_entry_24xx { #define SF_NVME_ERSP BIT_6 #define SF_FCP_RSP_DMA BIT_0 - __le16 retry_delay; + __le16 status_qualifier; __le16 scsi_status; /* SCSI status. */ #define SS_CONFIRMATION_REQ BIT_12 diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h index 2aa6f81f87c4..5b04da8a64c7 100644 --- a/drivers/scsi/qla2xxx/qla_inline.h +++ b/drivers/scsi/qla2xxx/qla_inline.h @@ -271,11 +271,41 @@ qla2x00_handle_mbx_completion(struct qla_hw_data *ha, int status) } static inline void -qla2x00_set_retry_delay_timestamp(fc_port_t *fcport, uint16_t retry_delay) +qla2x00_set_retry_delay_timestamp(fc_port_t *fcport, uint16_t sts_qual) { - if (retry_delay) - fcport->retry_delay_timestamp = jiffies + - (retry_delay * HZ / 10); + u8 scope; + u16 qual; +#define SQ_SCOPE_MASK 0xc000 /* SAM-6 rev5 5.3.2 */ +#define SQ_SCOPE_SHIFT 14 +#define SQ_QUAL_MASK 0x3fff + +#define SQ_MAX_WAIT_SEC 60 /* Max I/O hold off time in seconds. */ +#define SQ_MAX_WAIT_TIME (SQ_MAX_WAIT_SEC * 10) /* in 100ms. */ + + if (!sts_qual) /* Common case. */ + return; + + scope = (sts_qual & SQ_SCOPE_MASK) >> SQ_SCOPE_SHIFT; + /* Handle only scope 1 or 2, which is for I-T nexus. */ + if (scope != 1 && scope != 2) + return; + + /* Skip processing, if retry delay timer is already in effect. */ + if (fcport->retry_delay_timestamp && + time_before(jiffies, fcport->retry_delay_timestamp)) + return; + + qual = sts_qual & SQ_QUAL_MASK; + if (qual < 1 || qual > 0x3fef) + return; + qual = min(qual, (u16)SQ_MAX_WAIT_TIME); + + /* qual is expressed in 100ms increments. */ + fcport->retry_delay_timestamp = jiffies + (qual * HZ / 10); + + ql_log(ql_log_warn, fcport->vha, 0x5101, + "%8phC: I/O throttling requested (status qualifier = %04xh), holding off I/Os for %ums.\n", + fcport->port_name, sts_qual, qual * 100); } static inline bool diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 96811354f78a..36c980f1268e 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -2855,7 +2855,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) int logit = 1; int res = 0; uint16_t state_flags = 0; - uint16_t retry_delay = 0; + uint16_t sts_qual = 0; if (IS_FWI2_CAPABLE(ha)) { comp_status = le16_to_cpu(sts24->comp_status); @@ -2953,8 +2953,6 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) sense_len = par_sense_len = rsp_info_len = resid_len = fw_resid_len = 0; if (IS_FWI2_CAPABLE(ha)) { - u16 sts24_retry_delay = le16_to_cpu(sts24->retry_delay); - if (scsi_status & SS_SENSE_LEN_VALID) sense_len = le32_to_cpu(sts24->sense_len); if (scsi_status & SS_RESPONSE_INFO_LEN_VALID) @@ -2968,13 +2966,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) host_to_fcp_swap(sts24->data, sizeof(sts24->data)); ox_id = le16_to_cpu(sts24->ox_id); par_sense_len = sizeof(sts24->data); - /* Valid values of the retry delay timer are 0x1-0xffef */ - if (sts24_retry_delay > 0 && sts24_retry_delay < 0xfff1) { - retry_delay = sts24_retry_delay & 0x3fff; - ql_dbg(ql_dbg_io, sp->vha, 0x3033, - "%s: scope=%#x retry_delay=%#x\n", __func__, - sts24_retry_delay >> 14, retry_delay); - } + sts_qual = le16_to_cpu(sts24->status_qualifier); } else { if (scsi_status & SS_SENSE_LEN_VALID) sense_len = le16_to_cpu(sts->req_sense_length); @@ -3012,9 +3004,9 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) * Check retry_delay_timer value if we receive a busy or * queue full. */ - if (lscsi_status == SAM_STAT_TASK_SET_FULL || - lscsi_status == SAM_STAT_BUSY) - qla2x00_set_retry_delay_timestamp(fcport, retry_delay); + if (unlikely(lscsi_status == SAM_STAT_TASK_SET_FULL || + lscsi_status == SAM_STAT_BUSY)) + qla2x00_set_retry_delay_timestamp(fcport, sts_qual); /* * Based on Host and scsi status generate status code for Linux -- cgit v1.2.3 From d68930bae477e864e016aeb8d557f099b4636aac Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Thu, 3 Sep 2020 21:51:20 -0700 Subject: scsi: qla2xxx: Reduce duplicate code in reporting speed Indicate correct speed for 16G Mezz card. Link: https://lore.kernel.org/r/20200904045128.23631-6-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_attr.c | 41 +----------------- drivers/scsi/qla2xxx/qla_gbl.h | 2 + drivers/scsi/qla2xxx/qla_gs.c | 7 +-- drivers/scsi/qla2xxx/qla_os.c | 96 +---------------------------------------- 4 files changed, 9 insertions(+), 137 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 5d93ccc73153..d006ae193677 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -3214,46 +3214,7 @@ qla2x00_init_host_attr(scsi_qla_host_t *vha) fc_host_max_npiv_vports(vha->host) = ha->max_npiv_vports; fc_host_npiv_vports_inuse(vha->host) = ha->cur_vport_count; - if (IS_CNA_CAPABLE(ha)) - speeds = FC_PORTSPEED_10GBIT; - else if (IS_QLA28XX(ha) || IS_QLA27XX(ha)) { - if (ha->max_supported_speed == 2) { - if (ha->min_supported_speed <= 6) - speeds |= FC_PORTSPEED_64GBIT; - } - if (ha->max_supported_speed == 2 || - ha->max_supported_speed == 1) { - if (ha->min_supported_speed <= 5) - speeds |= FC_PORTSPEED_32GBIT; - } - if (ha->max_supported_speed == 2 || - ha->max_supported_speed == 1 || - ha->max_supported_speed == 0) { - if (ha->min_supported_speed <= 4) - speeds |= FC_PORTSPEED_16GBIT; - } - if (ha->max_supported_speed == 1 || - ha->max_supported_speed == 0) { - if (ha->min_supported_speed <= 3) - speeds |= FC_PORTSPEED_8GBIT; - } - if (ha->max_supported_speed == 0) { - if (ha->min_supported_speed <= 2) - speeds |= FC_PORTSPEED_4GBIT; - } - } else if (IS_QLA2031(ha)) - speeds = FC_PORTSPEED_16GBIT|FC_PORTSPEED_8GBIT| - FC_PORTSPEED_4GBIT; - else if (IS_QLA25XX(ha) || IS_QLAFX00(ha)) - speeds = FC_PORTSPEED_8GBIT|FC_PORTSPEED_4GBIT| - FC_PORTSPEED_2GBIT|FC_PORTSPEED_1GBIT; - else if (IS_QLA24XX_TYPE(ha)) - speeds = FC_PORTSPEED_4GBIT|FC_PORTSPEED_2GBIT| - FC_PORTSPEED_1GBIT; - else if (IS_QLA23XX(ha)) - speeds = FC_PORTSPEED_2GBIT|FC_PORTSPEED_1GBIT; - else - speeds = FC_PORTSPEED_1GBIT; + speeds = qla25xx_fdmi_port_speed_capability(ha); fc_host_supported_speeds(vha->host) = speeds; } diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 36c210c24f72..3360857c4405 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -704,6 +704,8 @@ int qla24xx_async_gfpnid(scsi_qla_host_t *, fc_port_t *); void qla24xx_handle_gfpnid_event(scsi_qla_host_t *, struct event_arg *); void qla24xx_sp_unmap(scsi_qla_host_t *, srb_t *); void qla_scan_work_fn(struct work_struct *); +uint qla25xx_fdmi_port_speed_capability(struct qla_hw_data *); +uint qla25xx_fdmi_port_speed_currently(struct qla_hw_data *); /* * Global Function Prototypes in qla_attr.c source file. diff --git a/drivers/scsi/qla2xxx/qla_gs.c b/drivers/scsi/qla2xxx/qla_gs.c index de9fd7f688d0..700d4247a791 100644 --- a/drivers/scsi/qla2xxx/qla_gs.c +++ b/drivers/scsi/qla2xxx/qla_gs.c @@ -1502,7 +1502,7 @@ qla2x00_prep_ct_fdmi_req(struct ct_sns_pkt *p, uint16_t cmd, return &p->p.req; } -static uint +uint qla25xx_fdmi_port_speed_capability(struct qla_hw_data *ha) { uint speeds = 0; @@ -1546,7 +1546,7 @@ qla25xx_fdmi_port_speed_capability(struct qla_hw_data *ha) } return speeds; } - if (IS_QLA25XX(ha)) + if (IS_QLA25XX(ha) || IS_QLAFX00(ha)) return FDMI_PORT_SPEED_8GB|FDMI_PORT_SPEED_4GB| FDMI_PORT_SPEED_2GB|FDMI_PORT_SPEED_1GB; if (IS_QLA24XX_TYPE(ha)) @@ -1556,7 +1556,8 @@ qla25xx_fdmi_port_speed_capability(struct qla_hw_data *ha) return FDMI_PORT_SPEED_2GB|FDMI_PORT_SPEED_1GB; return FDMI_PORT_SPEED_1GB; } -static uint + +uint qla25xx_fdmi_port_speed_currently(struct qla_hw_data *ha) { switch (ha->link_data_rate) { diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index f9e40a6d7189..74e6a04850c0 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -5810,98 +5810,6 @@ qla25xx_rdp_rsp_reduce_size(struct scsi_qla_host *vha, return true; } -static uint -qla25xx_rdp_port_speed_capability(struct qla_hw_data *ha) -{ - if (IS_CNA_CAPABLE(ha)) - return RDP_PORT_SPEED_10GB; - - if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) { - unsigned int speeds = 0; - - if (ha->max_supported_speed == 2) { - if (ha->min_supported_speed <= 6) - speeds |= RDP_PORT_SPEED_64GB; - } - - if (ha->max_supported_speed == 2 || - ha->max_supported_speed == 1) { - if (ha->min_supported_speed <= 5) - speeds |= RDP_PORT_SPEED_32GB; - } - - if (ha->max_supported_speed == 2 || - ha->max_supported_speed == 1 || - ha->max_supported_speed == 0) { - if (ha->min_supported_speed <= 4) - speeds |= RDP_PORT_SPEED_16GB; - } - - if (ha->max_supported_speed == 1 || - ha->max_supported_speed == 0) { - if (ha->min_supported_speed <= 3) - speeds |= RDP_PORT_SPEED_8GB; - } - - if (ha->max_supported_speed == 0) { - if (ha->min_supported_speed <= 2) - speeds |= RDP_PORT_SPEED_4GB; - } - - return speeds; - } - - if (IS_QLA2031(ha)) - return RDP_PORT_SPEED_16GB|RDP_PORT_SPEED_8GB| - RDP_PORT_SPEED_4GB; - - if (IS_QLA25XX(ha)) - return RDP_PORT_SPEED_8GB|RDP_PORT_SPEED_4GB| - RDP_PORT_SPEED_2GB|RDP_PORT_SPEED_1GB; - - if (IS_QLA24XX_TYPE(ha)) - return RDP_PORT_SPEED_4GB|RDP_PORT_SPEED_2GB| - RDP_PORT_SPEED_1GB; - - if (IS_QLA23XX(ha)) - return RDP_PORT_SPEED_2GB|RDP_PORT_SPEED_1GB; - - return RDP_PORT_SPEED_1GB; -} - -static uint -qla25xx_rdp_port_speed_currently(struct qla_hw_data *ha) -{ - switch (ha->link_data_rate) { - case PORT_SPEED_1GB: - return RDP_PORT_SPEED_1GB; - - case PORT_SPEED_2GB: - return RDP_PORT_SPEED_2GB; - - case PORT_SPEED_4GB: - return RDP_PORT_SPEED_4GB; - - case PORT_SPEED_8GB: - return RDP_PORT_SPEED_8GB; - - case PORT_SPEED_10GB: - return RDP_PORT_SPEED_10GB; - - case PORT_SPEED_16GB: - return RDP_PORT_SPEED_16GB; - - case PORT_SPEED_32GB: - return RDP_PORT_SPEED_32GB; - - case PORT_SPEED_64GB: - return RDP_PORT_SPEED_64GB; - - default: - return RDP_PORT_SPEED_UNKNOWN; - } -} - /* * Function Name: qla24xx_process_purex_iocb * @@ -6068,9 +5976,9 @@ void qla24xx_process_purex_rdp(struct scsi_qla_host *vha, rsp_payload->port_speed_desc.desc_len = cpu_to_be32(RDP_DESC_LEN(rsp_payload->port_speed_desc)); rsp_payload->port_speed_desc.speed_capab = cpu_to_be16( - qla25xx_rdp_port_speed_capability(ha)); + qla25xx_fdmi_port_speed_capability(ha)); rsp_payload->port_speed_desc.operating_speed = cpu_to_be16( - qla25xx_rdp_port_speed_currently(ha)); + qla25xx_fdmi_port_speed_currently(ha)); /* Link Error Status Descriptor */ rsp_payload->ls_err_desc.desc_tag = cpu_to_be32(0x10002); -- cgit v1.2.3 From d38cb849e17a34637b97ce57c550ec70d63dd39a Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Thu, 3 Sep 2020 21:51:21 -0700 Subject: scsi: qla2xxx: Fix memory size truncation Memory size calculations for Extended Login used in hardware offload got truncated. Fix this by changing definition of exlogin_size to use uint32_t. Link: https://lore.kernel.org/r/20200904045128.23631-7-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_def.h | 2 +- drivers/scsi/qla2xxx/qla_mbx.c | 7 ++++--- drivers/scsi/qla2xxx/qla_os.c | 5 +++-- 3 files changed, 8 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 6d6d74e3546c..23438fc8f562 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -4216,7 +4216,7 @@ struct qla_hw_data { /* Extended Logins */ void *exlogin_buf; dma_addr_t exlogin_buf_dma; - int exlogin_size; + uint32_t exlogin_size; #define ENABLE_EXCHANGE_OFFLD BIT_2 diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 53c732178746..062ded1ee2e8 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -845,7 +845,7 @@ qla_get_exlogin_status(scsi_qla_host_t *vha, uint16_t *buf_sz, * Context: * Kernel context. */ -#define CONFIG_XLOGINS_MEM 0x3 +#define CONFIG_XLOGINS_MEM 0x9 int qla_set_exlogin_mem_cfg(scsi_qla_host_t *vha, dma_addr_t phys_addr) { @@ -872,8 +872,9 @@ qla_set_exlogin_mem_cfg(scsi_qla_host_t *vha, dma_addr_t phys_addr) mcp->flags = 0; rval = qla2x00_mailbox_command(vha, mcp); if (rval != QLA_SUCCESS) { - /*EMPTY*/ - ql_dbg(ql_dbg_mbx, vha, 0x111b, "Failed=%x.\n", rval); + ql_dbg(ql_dbg_mbx, vha, 0x111b, + "EXlogin Failed=%x. MB0=%x MB11=%x\n", + rval, mcp->mb[0], mcp->mb[11]); } else { ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x118c, "Done %s.\n", __func__); diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 74e6a04850c0..31bfc0c088b7 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4379,11 +4379,12 @@ int qla2x00_set_exlogins_buffer(scsi_qla_host_t *vha) { int rval; - uint16_t size, max_cnt, temp; + uint16_t size, max_cnt; + uint32_t temp; struct qla_hw_data *ha = vha->hw; /* Return if we don't need to alloacate any extended logins */ - if (!ql2xexlogins) + if (ql2xexlogins <= MAX_FIBRE_DEVICES_2400) return QLA_SUCCESS; if (!IS_EXLOGIN_OFFLD_CAPABLE(ha)) -- cgit v1.2.3 From 49db4d4e02aabcd4fa2f60142ef42e50fb2dd526 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Thu, 3 Sep 2020 21:51:22 -0700 Subject: scsi: qla2xxx: Performance tweak Move statistics fields from vha struct to qpair to reduce memory thrashing. Link: https://lore.kernel.org/r/20200904045128.23631-8-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_attr.c | 46 +++++++++++++++++++++++++++++++++++------ drivers/scsi/qla2xxx/qla_def.h | 33 ++++++++++++++++++++++------- drivers/scsi/qla2xxx/qla_init.c | 4 +--- drivers/scsi/qla2xxx/qla_iocb.c | 18 +++++++++------- drivers/scsi/qla2xxx/qla_isr.c | 8 ++++--- drivers/scsi/qla2xxx/qla_mid.c | 4 +--- drivers/scsi/qla2xxx/qla_nvme.c | 8 +++---- drivers/scsi/qla2xxx/qla_os.c | 9 ++++---- 8 files changed, 91 insertions(+), 39 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index d006ae193677..1ee747ba4ecc 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -2726,6 +2726,9 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost) struct link_statistics *stats; dma_addr_t stats_dma; struct fc_host_statistics *p = &vha->fc_host_stat; + struct qla_qpair *qpair; + int i; + u64 ib = 0, ob = 0, ir = 0, or = 0; memset(p, -1, sizeof(*p)); @@ -2762,6 +2765,27 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost) if (rval != QLA_SUCCESS) goto done_free; + /* --- */ + for (i = 0; i < vha->hw->max_qpairs; i++) { + qpair = vha->hw->queue_pair_map[i]; + if (!qpair) + continue; + ir += qpair->counters.input_requests; + or += qpair->counters.output_requests; + ib += qpair->counters.input_bytes; + ob += qpair->counters.output_bytes; + } + ir += ha->base_qpair->counters.input_requests; + or += ha->base_qpair->counters.output_requests; + ib += ha->base_qpair->counters.input_bytes; + ob += ha->base_qpair->counters.output_bytes; + + ir += vha->qla_stats.input_requests; + or += vha->qla_stats.output_requests; + ib += vha->qla_stats.input_bytes; + ob += vha->qla_stats.output_bytes; + /* --- */ + p->link_failure_count = le32_to_cpu(stats->link_fail_cnt); p->loss_of_sync_count = le32_to_cpu(stats->loss_sync_cnt); p->loss_of_signal_count = le32_to_cpu(stats->loss_sig_cnt); @@ -2781,15 +2805,16 @@ qla2x00_get_fc_host_stats(struct Scsi_Host *shost) p->rx_words = le64_to_cpu(stats->fpm_recv_word_cnt); p->tx_words = le64_to_cpu(stats->fpm_xmit_word_cnt); } else { - p->rx_words = vha->qla_stats.input_bytes; - p->tx_words = vha->qla_stats.output_bytes; + p->rx_words = ib >> 2; + p->tx_words = ob >> 2; } } + p->fcp_control_requests = vha->qla_stats.control_requests; - p->fcp_input_requests = vha->qla_stats.input_requests; - p->fcp_output_requests = vha->qla_stats.output_requests; - p->fcp_input_megabytes = vha->qla_stats.input_bytes >> 20; - p->fcp_output_megabytes = vha->qla_stats.output_bytes >> 20; + p->fcp_input_requests = ir; + p->fcp_output_requests = or; + p->fcp_input_megabytes = ib >> 20; + p->fcp_output_megabytes = ob >> 20; p->seconds_since_last_reset = get_jiffies_64() - vha->qla_stats.jiffies_at_last_reset; do_div(p->seconds_since_last_reset, HZ); @@ -2809,9 +2834,18 @@ qla2x00_reset_host_stats(struct Scsi_Host *shost) struct scsi_qla_host *base_vha = pci_get_drvdata(ha->pdev); struct link_statistics *stats; dma_addr_t stats_dma; + int i; + struct qla_qpair *qpair; memset(&vha->qla_stats, 0, sizeof(vha->qla_stats)); memset(&vha->fc_host_stat, 0, sizeof(vha->fc_host_stat)); + for (i = 0; i < vha->hw->max_qpairs; i++) { + qpair = vha->hw->queue_pair_map[i]; + if (!qpair) + continue; + memset(&qpair->counters, 0, sizeof(qpair->counters)); + } + memset(&ha->base_qpair->counters, 0, sizeof(qpair->counters)); vha->qla_stats.jiffies_at_last_reset = get_jiffies_64(); diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 23438fc8f562..234cc33aeb04 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2443,12 +2443,6 @@ typedef struct fc_port { struct list_head list; struct scsi_qla_host *vha; - uint8_t node_name[WWN_SIZE]; - uint8_t port_name[WWN_SIZE]; - port_id_t d_id; - uint16_t loop_id; - uint16_t old_loop_id; - unsigned int conf_compl_supported:1; unsigned int deleted:2; unsigned int free_pending:1; @@ -2465,6 +2459,13 @@ typedef struct fc_port { unsigned int n2n_flag:1; unsigned int explicit_logout:1; unsigned int prli_pend_timer:1; + uint8_t nvme_flag; + + uint8_t node_name[WWN_SIZE]; + uint8_t port_name[WWN_SIZE]; + port_id_t d_id; + uint16_t loop_id; + uint16_t old_loop_id; struct completion nvme_del_done; uint32_t nvme_prli_service_param; @@ -2473,7 +2474,7 @@ typedef struct fc_port { #define NVME_PRLI_SP_TARGET BIT_4 #define NVME_PRLI_SP_DISCOVERY BIT_3 #define NVME_PRLI_SP_FIRST_BURST BIT_0 - uint8_t nvme_flag; + uint32_t nvme_first_burst_size; #define NVME_FLAG_REGISTERED 4 #define NVME_FLAG_DELETING 2 @@ -3510,6 +3511,14 @@ struct qla_tgt_counters { uint64_t num_term_xchg_sent; }; +struct qla_counters { + uint64_t input_bytes; + uint64_t input_requests; + uint64_t output_bytes; + uint64_t output_requests; + +}; + struct qla_qpair; /* Response queue data structure */ @@ -3594,6 +3603,7 @@ struct qla_qpair { uint32_t enable_class_2:1; uint32_t enable_explicit_conf:1; uint32_t use_shadow_reg:1; + uint32_t rcv_intr:1; uint16_t id; /* qp number used with FW */ uint16_t vp_idx; /* vport ID */ @@ -3609,13 +3619,16 @@ struct qla_qpair { struct qla_msix_entry *msix; /* point to &ha->msix_entries[x] */ struct qla_hw_data *hw; struct work_struct q_work; + struct qla_counters counters; + struct list_head qp_list_elem; /* vha->qp_list */ struct list_head hints_list; - uint16_t cpuid; + uint16_t retry_term_cnt; __le32 retry_term_exchg_addr; uint64_t retry_term_jiff; struct qla_tgt_counters tgt_counters; + uint16_t cpuid; }; /* Place holder for FW buffer parameters */ @@ -4129,6 +4142,10 @@ struct qla_hw_data { #define USE_ASYNC_SCAN(ha) (IS_QLA25XX(ha) || IS_QLA81XX(ha) ||\ IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) +#define IS_ZIO_THRESHOLD_CAPABLE(ha) \ + ((IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha)) &&\ + (ha->zio_mode == QLA_ZIO_MODE_6)) + /* HBA serial number */ uint8_t serial0; uint8_t serial1; diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 5051888a2416..a2914e328a3b 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3700,9 +3700,7 @@ execute_fw_with_lr: goto execute_fw_with_lr; } - if ((IS_QLA83XX(ha) || IS_QLA27XX(ha) || - IS_QLA28XX(ha)) && - (ha->zio_mode == QLA_ZIO_MODE_6)) + if (IS_ZIO_THRESHOLD_CAPABLE(ha)) qla27xx_set_zio_threshold(vha, ha->last_zio_threshold); diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index e3d2dea0b057..d69e16e844aa 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -594,6 +594,7 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, uint32_t dsd_list_len; struct dsd_dma *dsd_ptr; struct ct6_dsd *ctx; + struct qla_qpair *qpair = sp->qpair; cmd = GET_CMD_SP(sp); @@ -612,12 +613,12 @@ qla24xx_build_scsi_type_6_iocbs(srb_t *sp, struct cmd_type_6 *cmd_pkt, /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); - vha->qla_stats.output_bytes += scsi_bufflen(cmd); - vha->qla_stats.output_requests++; + qpair->counters.output_bytes += scsi_bufflen(cmd); + qpair->counters.output_requests++; } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); - vha->qla_stats.input_bytes += scsi_bufflen(cmd); - vha->qla_stats.input_requests++; + qpair->counters.input_bytes += scsi_bufflen(cmd); + qpair->counters.input_requests++; } cur_seg = scsi_sglist(cmd); @@ -704,6 +705,7 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, struct scsi_cmnd *cmd; struct scatterlist *sg; int i; + struct qla_qpair *qpair = sp->qpair; cmd = GET_CMD_SP(sp); @@ -721,12 +723,12 @@ qla24xx_build_scsi_iocbs(srb_t *sp, struct cmd_type_7 *cmd_pkt, /* Set transfer direction */ if (cmd->sc_data_direction == DMA_TO_DEVICE) { cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_WRITE_DATA); - vha->qla_stats.output_bytes += scsi_bufflen(cmd); - vha->qla_stats.output_requests++; + qpair->counters.output_bytes += scsi_bufflen(cmd); + qpair->counters.output_requests++; } else if (cmd->sc_data_direction == DMA_FROM_DEVICE) { cmd_pkt->task_mgmt_flags = cpu_to_le16(TMF_READ_DATA); - vha->qla_stats.input_bytes += scsi_bufflen(cmd); - vha->qla_stats.input_requests++; + qpair->counters.input_bytes += scsi_bufflen(cmd); + qpair->counters.input_requests++; } /* One DSD is available in the Command Type 3 IOCB */ diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 36c980f1268e..4d59d5b17655 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -3440,8 +3440,10 @@ void qla24xx_process_response_queue(struct scsi_qla_host *vha, if (!ha->flags.fw_started) return; - if (rsp->qpair->cpuid != smp_processor_id()) + if (rsp->qpair->cpuid != smp_processor_id() || !rsp->qpair->rcv_intr) { + rsp->qpair->rcv_intr = 1; qla_cpu_update(rsp->qpair, smp_processor_id()); + } while (rsp->ring_ptr->signature != RESPONSE_PROCESSED) { pkt = (struct sts_entry_24xx *)rsp->ring_ptr; @@ -3890,7 +3892,7 @@ qla2xxx_msix_rsp_q(int irq, void *dev_id) } ha = qpair->hw; - queue_work(ha->wq, &qpair->q_work); + queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work); return IRQ_HANDLED; } @@ -3916,7 +3918,7 @@ qla2xxx_msix_rsp_q_hs(int irq, void *dev_id) wrt_reg_dword(®->hccr, HCCRX_CLR_RISC_INT); spin_unlock_irqrestore(&ha->hardware_lock, flags); - queue_work(ha->wq, &qpair->q_work); + queue_work_on(smp_processor_id(), ha->wq, &qpair->q_work); return IRQ_HANDLED; } diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c index 15efe2f04b86..08cfe043ac66 100644 --- a/drivers/scsi/qla2xxx/qla_mid.c +++ b/drivers/scsi/qla2xxx/qla_mid.c @@ -808,11 +808,9 @@ static void qla_do_work(struct work_struct *work) { unsigned long flags; struct qla_qpair *qpair = container_of(work, struct qla_qpair, q_work); - struct scsi_qla_host *vha; - struct qla_hw_data *ha = qpair->hw; + struct scsi_qla_host *vha = qpair->vha; spin_lock_irqsave(&qpair->qp_lock, flags); - vha = pci_get_drvdata(ha->pdev); qla24xx_process_response_queue(vha, qpair->rsp); spin_unlock_irqrestore(&qpair->qp_lock, flags); diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index b05e4545ef5f..b0c13144c21a 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -428,8 +428,8 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) /* No data transfer how do we check buffer len == 0?? */ if (fd->io_dir == NVMEFC_FCP_READ) { cmd_pkt->control_flags = cpu_to_le16(CF_READ_DATA); - vha->qla_stats.input_bytes += fd->payload_length; - vha->qla_stats.input_requests++; + qpair->counters.input_bytes += fd->payload_length; + qpair->counters.input_requests++; } else if (fd->io_dir == NVMEFC_FCP_WRITE) { cmd_pkt->control_flags = cpu_to_le16(CF_WRITE_DATA); if ((vha->flags.nvme_first_burst) && @@ -441,8 +441,8 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) cmd_pkt->control_flags |= cpu_to_le16(CF_NVME_FIRST_BURST_ENABLE); } - vha->qla_stats.output_bytes += fd->payload_length; - vha->qla_stats.output_requests++; + qpair->counters.output_bytes += fd->payload_length; + qpair->counters.output_requests++; } else if (fd->io_dir == 0) { cmd_pkt->control_flags = 0; } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 31bfc0c088b7..78936b5265d4 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -7198,8 +7198,10 @@ qla2x00_timer(struct timer_list *t) * FC-NVME * see if the active AEN count has changed from what was last reported. */ + index = atomic_read(&ha->nvme_active_aen_cnt); if (!vha->vp_idx && - (atomic_read(&ha->nvme_active_aen_cnt) != ha->nvme_last_rptd_aen) && + (index != ha->nvme_last_rptd_aen) && + (index >= DEFAULT_ZIO_THRESHOLD) && ha->zio_mode == QLA_ZIO_MODE_6 && !ha->flags.host_shutting_down) { ql_log(ql_log_info, vha, 0x3002, @@ -7211,9 +7213,8 @@ qla2x00_timer(struct timer_list *t) } if (!vha->vp_idx && - (atomic_read(&ha->zio_threshold) != ha->last_zio_threshold) && - (ha->zio_mode == QLA_ZIO_MODE_6) && - (IS_QLA83XX(ha) || IS_QLA27XX(ha) || IS_QLA28XX(ha))) { + atomic_read(&ha->zio_threshold) != ha->last_zio_threshold && + IS_ZIO_THRESHOLD_CAPABLE(ha)) { ql_log(ql_log_info, vha, 0x3002, "Sched: Set ZIO exchange threshold to %d.\n", ha->last_zio_threshold); -- cgit v1.2.3 From a35f87bdcc0615c5a3a695d13dd1ccf827826368 Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Thu, 3 Sep 2020 21:51:23 -0700 Subject: scsi: qla2xxx: Fix I/O errors during LIP reset tests In .fcp_io(), returning ENODEV as soon as remote port delete has started can cause I/O errors. Fix this by returning EBUSY until the remote port delete finishes. Link: https://lore.kernel.org/r/20200904045128.23631-9-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_nvme.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index b0c13144c21a..86b6d322a12c 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -548,6 +548,14 @@ static int qla_nvme_post_cmd(struct nvme_fc_local_port *lport, return rval; vha = fcport->vha; + + if (!(fcport->nvme_flag & NVME_FLAG_REGISTERED)) + return rval; + + if (test_bit(ABORT_ISP_ACTIVE, &vha->dpc_flags) || + (qpair && !qpair->fw_started) || fcport->deleted) + return -EBUSY; + /* * If we know the dev is going away while the transport is still sending * IO's return busy back to stall the IO Q. This happens when the -- cgit v1.2.3 From 4e5a05d1ecd92cec59b11c33821b5407984df81d Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Thu, 3 Sep 2020 21:51:24 -0700 Subject: scsi: qla2xxx: Make tgt_port_database available in initiator mode tgt_port_database data is today exported only in target mode, allow it to be shown in initiator mode as well. Link: https://lore.kernel.org/r/20200904045128.23631-10-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_dfs.c | 64 +++++++++++++++++++++--------------------- 1 file changed, 32 insertions(+), 32 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 616ce891818d..1e9db568aee3 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -138,51 +138,51 @@ qla2x00_dfs_tgt_port_database_show(struct seq_file *s, void *unused) { scsi_qla_host_t *vha = s->private; struct qla_hw_data *ha = vha->hw; - struct gid_list_info *gid_list, *gid; + struct gid_list_info *gid_list; dma_addr_t gid_list_dma; fc_port_t fc_port; + char *id_iter; int rc, i; uint16_t entries, loop_id; - struct qla_tgt *tgt = vha->vha_tgt.qla_tgt; seq_printf(s, "%s\n", vha->host_str); - if (tgt) { - gid_list = dma_alloc_coherent(&ha->pdev->dev, - qla2x00_gid_list_size(ha), - &gid_list_dma, GFP_KERNEL); - if (!gid_list) { - ql_dbg(ql_dbg_user, vha, 0x7018, - "DMA allocation failed for %u\n", - qla2x00_gid_list_size(ha)); - return 0; - } + gid_list = dma_alloc_coherent(&ha->pdev->dev, + qla2x00_gid_list_size(ha), + &gid_list_dma, GFP_KERNEL); + if (!gid_list) { + ql_dbg(ql_dbg_user, vha, 0x7018, + "DMA allocation failed for %u\n", + qla2x00_gid_list_size(ha)); + return 0; + } - rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, - &entries); - if (rc != QLA_SUCCESS) - goto out_free_id_list; + rc = qla24xx_gidlist_wait(vha, gid_list, gid_list_dma, + &entries); + if (rc != QLA_SUCCESS) + goto out_free_id_list; - gid = gid_list; + id_iter = (char *)gid_list; - seq_puts(s, "Port Name Port ID Loop ID\n"); + seq_puts(s, "Port Name Port ID Loop ID\n"); - for (i = 0; i < entries; i++) { - loop_id = le16_to_cpu(gid->loop_id); - memset(&fc_port, 0, sizeof(fc_port_t)); + for (i = 0; i < entries; i++) { + struct gid_list_info *gid = + (struct gid_list_info *)id_iter; + loop_id = le16_to_cpu(gid->loop_id); + memset(&fc_port, 0, sizeof(fc_port_t)); - fc_port.loop_id = loop_id; + fc_port.loop_id = loop_id; - rc = qla24xx_gpdb_wait(vha, &fc_port, 0); - seq_printf(s, "%8phC %02x%02x%02x %d\n", - fc_port.port_name, fc_port.d_id.b.domain, - fc_port.d_id.b.area, fc_port.d_id.b.al_pa, - fc_port.loop_id); - gid = (void *)gid + ha->gid_list_info_size; - } -out_free_id_list: - dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), - gid_list, gid_list_dma); + rc = qla24xx_gpdb_wait(vha, &fc_port, 0); + seq_printf(s, "%8phC %02x%02x%02x %d\n", + fc_port.port_name, fc_port.d_id.b.domain, + fc_port.d_id.b.area, fc_port.d_id.b.al_pa, + fc_port.loop_id); + id_iter += ha->gid_list_info_size; } +out_free_id_list: + dma_free_coherent(&ha->pdev->dev, qla2x00_gid_list_size(ha), + gid_list, gid_list_dma); return 0; } -- cgit v1.2.3 From 6152d20fa6703cf364253efc4eab31151558cb01 Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Thu, 3 Sep 2020 21:51:25 -0700 Subject: scsi: qla2xxx: Add rport fields in debugfs This patch adds rport fields in debugfs. Link: https://lore.kernel.org/r/20200904045128.23631-11-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_dfs.c | 53 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 53 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 1e9db568aee3..118f2b223531 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -65,13 +65,53 @@ DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_##_attr##_fops, \ qla_dfs_rport_##_attr##_get, \ qla_dfs_rport_##_attr##_set, "%llu\n") +/* + * Wrapper for getting fc_port fields. + * + * _attr : Attribute name. + * _get_val : Accessor macro to retrieve the value. + */ +#define DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val) \ +static int qla_dfs_rport_field_##_attr##_get(void *data, u64 *val) \ +{ \ + struct fc_port *fp = data; \ + *val = _get_val; \ + return 0; \ +} \ +DEFINE_DEBUGFS_ATTRIBUTE(qla_dfs_rport_field_##_attr##_fops, \ + qla_dfs_rport_field_##_attr##_get, \ + NULL, "%llu\n") + +#define DEFINE_QLA_DFS_RPORT_ACCESS(_attr, _get_val) \ + DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, _get_val) + +#define DEFINE_QLA_DFS_RPORT_FIELD(_attr) \ + DEFINE_QLA_DFS_RPORT_FIELD_GET(_attr, fp->_attr) + DEFINE_QLA_DFS_RPORT_RW_ATTR(QLA_DFS_RPORT_DEVLOSS_TMO, dev_loss_tmo); +DEFINE_QLA_DFS_RPORT_FIELD(disc_state); +DEFINE_QLA_DFS_RPORT_FIELD(scan_state); +DEFINE_QLA_DFS_RPORT_FIELD(fw_login_state); +DEFINE_QLA_DFS_RPORT_FIELD(login_pause); +DEFINE_QLA_DFS_RPORT_FIELD(flags); +DEFINE_QLA_DFS_RPORT_FIELD(nvme_flag); +DEFINE_QLA_DFS_RPORT_FIELD(last_rscn_gen); +DEFINE_QLA_DFS_RPORT_FIELD(rscn_gen); +DEFINE_QLA_DFS_RPORT_FIELD(login_gen); +DEFINE_QLA_DFS_RPORT_FIELD(loop_id); +DEFINE_QLA_DFS_RPORT_FIELD_GET(port_id, fp->d_id.b24); +DEFINE_QLA_DFS_RPORT_FIELD_GET(sess_kref, kref_read(&fp->sess_kref)); + void qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) { char wwn[32]; +#define QLA_CREATE_RPORT_FIELD_ATTR(_attr) \ + debugfs_create_file(#_attr, 0400, fp->dfs_rport_dir, \ + fp, &qla_dfs_rport_field_##_attr##_fops) + if (!vha->dfs_rport_root || fp->dfs_rport_dir) return; @@ -82,6 +122,19 @@ qla2x00_dfs_create_rport(scsi_qla_host_t *vha, struct fc_port *fp) if (NVME_TARGET(vha->hw, fp)) debugfs_create_file("dev_loss_tmo", 0600, fp->dfs_rport_dir, fp, &qla_dfs_rport_dev_loss_tmo_fops); + + QLA_CREATE_RPORT_FIELD_ATTR(disc_state); + QLA_CREATE_RPORT_FIELD_ATTR(scan_state); + QLA_CREATE_RPORT_FIELD_ATTR(fw_login_state); + QLA_CREATE_RPORT_FIELD_ATTR(login_pause); + QLA_CREATE_RPORT_FIELD_ATTR(flags); + QLA_CREATE_RPORT_FIELD_ATTR(nvme_flag); + QLA_CREATE_RPORT_FIELD_ATTR(last_rscn_gen); + QLA_CREATE_RPORT_FIELD_ATTR(rscn_gen); + QLA_CREATE_RPORT_FIELD_ATTR(login_gen); + QLA_CREATE_RPORT_FIELD_ATTR(loop_id); + QLA_CREATE_RPORT_FIELD_ATTR(port_id); + QLA_CREATE_RPORT_FIELD_ATTR(sess_kref); } void -- cgit v1.2.3 From 89c72f4245a8510ffdb0d1980944210b8bc6e49f Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Thu, 3 Sep 2020 21:51:26 -0700 Subject: scsi: qla2xxx: Add IOCB resource tracking This patch tracks number of IOCB resources used in the I/O fast path. If the number of used IOCBs reach a high water limit, driver would return the I/O as busy and let upper layer retry. This prevents over subscription of IOCB resources where any future error recovery command is unable to cut through. Enable IOCB throttling by default. Link: https://lore.kernel.org/r/20200904045128.23631-12-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Quinn Tran Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_def.h | 17 ++++++++++++ drivers/scsi/qla2xxx/qla_dfs.c | 14 ++++++++++ drivers/scsi/qla2xxx/qla_gbl.h | 3 +++ drivers/scsi/qla2xxx/qla_init.c | 26 ++++++++++++++++++ drivers/scsi/qla2xxx/qla_inline.h | 55 +++++++++++++++++++++++++++++++++++++++ drivers/scsi/qla2xxx/qla_iocb.c | 28 ++++++++++++++++++++ drivers/scsi/qla2xxx/qla_isr.c | 2 ++ drivers/scsi/qla2xxx/qla_os.c | 6 +++++ 8 files changed, 151 insertions(+) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 234cc33aeb04..817234de3baf 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -624,6 +624,12 @@ enum { TYPE_TGT_TMCMD, /* task management */ }; +struct iocb_resource { + u8 res_type; + u8 pad; + u16 iocb_cnt; +}; + typedef struct srb { /* * Do not move cmd_type field, it needs to @@ -631,6 +637,7 @@ typedef struct srb { */ uint8_t cmd_type; uint8_t pad[3]; + struct iocb_resource iores; struct kref cmd_kref; /* need to migrate ref_count over to this */ void *priv; wait_queue_head_t nvme_ls_waitq; @@ -3577,6 +3584,15 @@ struct req_que { uint8_t req_pkt[REQUEST_ENTRY_SIZE]; }; +struct qla_fw_resources { + u16 iocbs_total; + u16 iocbs_limit; + u16 iocbs_qp_limit; + u16 iocbs_used; +}; + +#define QLA_IOCB_PCT_LIMIT 95 + /*Queue pair data structure */ struct qla_qpair { spinlock_t qp_lock; @@ -3629,6 +3645,7 @@ struct qla_qpair { uint64_t retry_term_jiff; struct qla_tgt_counters tgt_counters; uint16_t cpuid; + struct qla_fw_resources fwres ____cacheline_aligned; }; /* Place holder for FW buffer parameters */ diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c index 118f2b223531..6f5f18fc974a 100644 --- a/drivers/scsi/qla2xxx/qla_dfs.c +++ b/drivers/scsi/qla2xxx/qla_dfs.c @@ -261,6 +261,8 @@ qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused) struct scsi_qla_host *vha = s->private; uint16_t mb[MAX_IOCB_MB_REG]; int rc; + struct qla_hw_data *ha = vha->hw; + u16 iocbs_used, i; rc = qla24xx_res_count_wait(vha, mb, SIZEOF_IOCB_MB_REG); if (rc != QLA_SUCCESS) { @@ -285,6 +287,18 @@ qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused) mb[23]); } + if (ql2xenforce_iocb_limit) { + /* lock is not require. It's an estimate. */ + iocbs_used = ha->base_qpair->fwres.iocbs_used; + for (i = 0; i < ha->max_qpairs; i++) { + if (ha->queue_pair_map[i]) + iocbs_used += ha->queue_pair_map[i]->fwres.iocbs_used; + } + + seq_printf(s, "Driver: estimate iocb used [%d] high water limit [%d]\n", + iocbs_used, ha->base_qpair->fwres.iocbs_limit); + } + return 0; } diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 3360857c4405..9c4d077edf9e 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -129,6 +129,8 @@ int qla2x00_reserve_mgmt_server_loop_id(scsi_qla_host_t *); void qla_rscn_replay(fc_port_t *fcport); void qla24xx_free_purex_item(struct purex_item *item); extern bool qla24xx_risc_firmware_invalid(uint32_t *); +void qla_init_iocb_limit(scsi_qla_host_t *); + /* * Global Data in qla_os.c source file. @@ -175,6 +177,7 @@ extern int qla2xuseresexchforels; extern int ql2xexlogins; extern int ql2xdifbundlinginternalbuffers; extern int ql2xfulldump_on_mpifail; +extern int ql2xenforce_iocb_limit; extern int qla2x00_loop_reset(scsi_qla_host_t *); extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int); diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index a2914e328a3b..f71f3a15256c 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3632,6 +3632,31 @@ out: return ha->flags.lr_detected; } +void qla_init_iocb_limit(scsi_qla_host_t *vha) +{ + u16 i, num_qps; + u32 limit; + struct qla_hw_data *ha = vha->hw; + + num_qps = ha->num_qpairs + 1; + limit = (ha->orig_fw_iocb_count * QLA_IOCB_PCT_LIMIT) / 100; + + ha->base_qpair->fwres.iocbs_total = ha->orig_fw_iocb_count; + ha->base_qpair->fwres.iocbs_limit = limit; + ha->base_qpair->fwres.iocbs_qp_limit = limit / num_qps; + ha->base_qpair->fwres.iocbs_used = 0; + for (i = 0; i < ha->max_qpairs; i++) { + if (ha->queue_pair_map[i]) { + ha->queue_pair_map[i]->fwres.iocbs_total = + ha->orig_fw_iocb_count; + ha->queue_pair_map[i]->fwres.iocbs_limit = limit; + ha->queue_pair_map[i]->fwres.iocbs_qp_limit = + limit / num_qps; + ha->queue_pair_map[i]->fwres.iocbs_used = 0; + } + } +} + /** * qla2x00_setup_chip() - Load and start RISC firmware. * @vha: HA context @@ -3731,6 +3756,7 @@ enable_82xx_npiv: MIN_MULTI_ID_FABRIC - 1; } qla2x00_get_resource_cnts(vha); + qla_init_iocb_limit(vha); /* * Allocate the array of outstanding commands diff --git a/drivers/scsi/qla2xxx/qla_inline.h b/drivers/scsi/qla2xxx/qla_inline.h index 5b04da8a64c7..c7aae438f984 100644 --- a/drivers/scsi/qla2xxx/qla_inline.h +++ b/drivers/scsi/qla2xxx/qla_inline.h @@ -378,3 +378,58 @@ qla2xxx_get_fc4_priority(struct scsi_qla_host *vha) return (data >> 6) & BIT_0 ? FC4_PRIORITY_FCP : FC4_PRIORITY_NVME; } + +enum { + RESOURCE_NONE, + RESOURCE_INI, +}; + +static inline int +qla_get_iocbs(struct qla_qpair *qp, struct iocb_resource *iores) +{ + u16 iocbs_used, i; + struct qla_hw_data *ha = qp->vha->hw; + + if (!ql2xenforce_iocb_limit) { + iores->res_type = RESOURCE_NONE; + return 0; + } + + if ((iores->iocb_cnt + qp->fwres.iocbs_used) < qp->fwres.iocbs_qp_limit) { + qp->fwres.iocbs_used += iores->iocb_cnt; + return 0; + } else { + /* no need to acquire qpair lock. It's just rough calculation */ + iocbs_used = ha->base_qpair->fwres.iocbs_used; + for (i = 0; i < ha->max_qpairs; i++) { + if (ha->queue_pair_map[i]) + iocbs_used += ha->queue_pair_map[i]->fwres.iocbs_used; + } + + if ((iores->iocb_cnt + iocbs_used) < qp->fwres.iocbs_limit) { + qp->fwres.iocbs_used += iores->iocb_cnt; + return 0; + } else { + iores->res_type = RESOURCE_NONE; + return -ENOSPC; + } + } +} + +static inline void +qla_put_iocbs(struct qla_qpair *qp, struct iocb_resource *iores) +{ + switch (iores->res_type) { + case RESOURCE_NONE: + break; + default: + if (qp->fwres.iocbs_used >= iores->iocb_cnt) { + qp->fwres.iocbs_used -= iores->iocb_cnt; + } else { + // should not happen + qp->fwres.iocbs_used = 0; + } + break; + } + iores->res_type = RESOURCE_NONE; +} diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index d69e16e844aa..b60a332e5846 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -1637,6 +1637,12 @@ qla24xx_start_scsi(srb_t *sp) tot_dsds = nseg; req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); + + sp->iores.res_type = RESOURCE_INI; + sp->iores.iocb_cnt = req_cnt; + if (qla_get_iocbs(sp->qpair, &sp->iores)) + goto queuing_error; + if (req->cnt < (req_cnt + 2)) { cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : rd_reg_dword_relaxed(req->req_q_out); @@ -1709,6 +1715,7 @@ queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); + qla_put_iocbs(sp->qpair, &sp->iores); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_FUNCTION_FAILED; @@ -1822,6 +1829,12 @@ qla24xx_dif_start_scsi(srb_t *sp) /* Total Data and protection sg segment(s) */ tot_prot_dsds = nseg; tot_dsds += nseg; + + sp->iores.res_type = RESOURCE_INI; + sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); + if (qla_get_iocbs(sp->qpair, &sp->iores)) + goto queuing_error; + if (req->cnt < (req_cnt + 2)) { cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : rd_reg_dword_relaxed(req->req_q_out); @@ -1896,6 +1909,7 @@ queuing_error: } /* Cleanup will be performed by the caller (queuecommand) */ + qla_put_iocbs(sp->qpair, &sp->iores); spin_unlock_irqrestore(&ha->hardware_lock, flags); return QLA_FUNCTION_FAILED; } @@ -1957,6 +1971,12 @@ qla2xxx_start_scsi_mq(srb_t *sp) tot_dsds = nseg; req_cnt = qla24xx_calc_iocbs(vha, tot_dsds); + + sp->iores.res_type = RESOURCE_INI; + sp->iores.iocb_cnt = req_cnt; + if (qla_get_iocbs(sp->qpair, &sp->iores)) + goto queuing_error; + if (req->cnt < (req_cnt + 2)) { cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : rd_reg_dword_relaxed(req->req_q_out); @@ -2029,6 +2049,7 @@ queuing_error: if (tot_dsds) scsi_dma_unmap(cmd); + qla_put_iocbs(sp->qpair, &sp->iores); spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_FUNCTION_FAILED; @@ -2157,6 +2178,12 @@ qla2xxx_dif_start_scsi_mq(srb_t *sp) /* Total Data and protection sg segment(s) */ tot_prot_dsds = nseg; tot_dsds += nseg; + + sp->iores.res_type = RESOURCE_INI; + sp->iores.iocb_cnt = qla24xx_calc_iocbs(vha, tot_dsds); + if (qla_get_iocbs(sp->qpair, &sp->iores)) + goto queuing_error; + if (req->cnt < (req_cnt + 2)) { cnt = IS_SHADOW_REG_CAPABLE(ha) ? *req->out_ptr : rd_reg_dword_relaxed(req->req_q_out); @@ -2234,6 +2261,7 @@ queuing_error: } /* Cleanup will be performed by the caller (queuecommand) */ + qla_put_iocbs(sp->qpair, &sp->iores); spin_unlock_irqrestore(&qpair->qp_lock, flags); return QLA_FUNCTION_FAILED; } diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 4d59d5b17655..4baa83996813 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -2901,6 +2901,7 @@ qla2x00_status_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, void *pkt) } return; } + qla_put_iocbs(sp->qpair, &sp->iores); if (sp->cmd_type != TYPE_SRB) { req->outstanding_cmds[handle] = NULL; @@ -3313,6 +3314,7 @@ qla2x00_error_entry(scsi_qla_host_t *vha, struct rsp_que *rsp, sts_entry_t *pkt) default: sp = qla2x00_get_sp_from_handle(vha, func, req, pkt); if (sp) { + qla_put_iocbs(sp->qpair, &sp->iores); sp->done(sp, res); return 0; } diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 78936b5265d4..4a5a5e4acbbd 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -40,6 +40,11 @@ module_param(ql2xfulldump_on_mpifail, int, S_IRUGO | S_IWUSR); MODULE_PARM_DESC(ql2xfulldump_on_mpifail, "Set this to take full dump on MPI hang."); +int ql2xenforce_iocb_limit = 1; +module_param(ql2xenforce_iocb_limit, int, S_IRUGO | S_IWUSR); +MODULE_PARM_DESC(ql2xenforce_iocb_limit, + "Enforce IOCB throttling, to avoid FW congestion. (default: 0)"); + /* * CT6 CTX allocation cache */ @@ -3316,6 +3321,7 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id) for (i = 0; i < ha->max_qpairs; i++) qla2xxx_create_qpair(base_vha, 5, 0, startit); } + qla_init_iocb_limit(base_vha); if (ha->flags.running_gold_fw) goto skip_dpc; -- cgit v1.2.3 From cf3c54fb49a4eb5b5b83ddab0b25df47b2e958af Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Thu, 3 Sep 2020 21:51:27 -0700 Subject: scsi: qla2xxx: Add SLER and PI control support BIT_13 of extended FW attribute informs about NVMe-2 support. Set BIT_15 of special feature control block for enabling SLER in FW. Set bit 8 (SLER supported) to 1 for the service parameter information when sending NVMe PRLI request. Set BIT_14 of special feature control block for enabling PI Control in FW. Driver should set bit 9 (PI Control supported) to 1 for the service parameter information when sending NVMe PRLI request. Set BIT_13 for NVMe Async events. Link: https://lore.kernel.org/r/20200904045128.23631-13-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Saurav Kashyap Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_dbg.c | 2 +- drivers/scsi/qla2xxx/qla_def.h | 4 ++++ drivers/scsi/qla2xxx/qla_iocb.c | 8 ++++++++ drivers/scsi/qla2xxx/qla_mbx.c | 18 ++++++++++++++++-- drivers/scsi/qla2xxx/qla_nvme.c | 16 ++++++++++++++-- drivers/scsi/qla2xxx/qla_nvme.h | 1 + drivers/scsi/qla2xxx/qla_os.c | 1 + 7 files changed, 45 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 1be811a5d69d..369040250ab9 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -16,7 +16,7 @@ * | Device Discovery | 0x2134 | 0x210e-0x2116 | * | | | 0x211a | * | | | 0x211c-0x2128 | - * | | | 0x212a-0x2134 | + * | | | 0x212c-0x2134 | * | Queue Command and IO tracing | 0x3074 | 0x300b | * | | | 0x3027-0x3028 | * | | | 0x303d-0x3041 | diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 817234de3baf..fa31301528bd 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -2476,6 +2476,8 @@ typedef struct fc_port { struct completion nvme_del_done; uint32_t nvme_prli_service_param; +#define NVME_PRLI_SP_PI_CTRL BIT_9 +#define NVME_PRLI_SP_SLER BIT_8 #define NVME_PRLI_SP_CONF BIT_7 #define NVME_PRLI_SP_INITIATOR BIT_5 #define NVME_PRLI_SP_TARGET BIT_4 @@ -4309,6 +4311,7 @@ struct qla_hw_data { #define FW_ATTR_EXT0_SCM_BROCADE 0x00001000 /* Cisco fabric attached */ #define FW_ATTR_EXT0_SCM_CISCO 0x00002000 +#define FW_ATTR_EXT0_NVME2 BIT_13 uint16_t fw_attributes_ext[2]; uint32_t fw_memory_size; uint32_t fw_transfer_size; @@ -4658,6 +4661,7 @@ typedef struct scsi_qla_host { uint32_t qpairs_rsp_created:1; uint32_t nvme_enabled:1; uint32_t nvme_first_burst:1; + uint32_t nvme2_enabled:1; } flags; atomic_t loop_state; diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index b60a332e5846..310db7e4e233 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -2378,6 +2378,14 @@ qla24xx_prli_iocb(srb_t *sp, struct logio_entry_24xx *logio) if (sp->vha->flags.nvme_first_burst) logio->io_parameter[0] = cpu_to_le32(NVME_PRLI_SP_FIRST_BURST); + if (sp->vha->flags.nvme2_enabled) { + /* Set service parameter BIT_8 for SLER support */ + logio->io_parameter[0] |= + cpu_to_le32(NVME_PRLI_SP_SLER); + /* Set service parameter BIT_9 for PI control support */ + logio->io_parameter[0] |= + cpu_to_le32(NVME_PRLI_SP_PI_CTRL); + } } logio->nport_handle = cpu_to_le16(sp->fcport->loop_id); diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 062ded1ee2e8..597617b59fbb 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -1093,6 +1093,14 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha) "%s: FC-NVMe is Enabled (0x%x)\n", __func__, ha->fw_attributes_h); } + + /* BIT_13 of Extended FW Attributes informs about NVMe2 support */ + if (ha->fw_attributes_ext[0] & FW_ATTR_EXT0_NVME2) { + ql_log(ql_log_info, vha, 0xd302, + "Firmware supports NVMe2 0x%x\n", + ha->fw_attributes_ext[0]); + vha->flags.nvme2_enabled = 1; + } } if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) { @@ -1122,12 +1130,18 @@ qla2x00_get_fw_version(scsi_qla_host_t *vha) if (ha->flags.scm_supported_a && (ha->fw_attributes_ext[0] & FW_ATTR_EXT0_SCM_SUPPORTED)) { ha->flags.scm_supported_f = 1; - memset(ha->sf_init_cb, 0, sizeof(struct init_sf_cb)); ha->sf_init_cb->flags |= BIT_13; } ql_log(ql_log_info, vha, 0x11a3, "SCM in FW: %s\n", (ha->flags.scm_supported_f) ? "Supported" : "Not Supported"); + + if (vha->flags.nvme2_enabled) { + /* set BIT_15 of special feature control block for SLER */ + ha->sf_init_cb->flags |= BIT_15; + /* set BIT_14 of special feature control block for PI CTRL*/ + ha->sf_init_cb->flags |= BIT_14; + } } failed: @@ -1823,7 +1837,7 @@ qla2x00_init_firmware(scsi_qla_host_t *vha, uint16_t size) mcp->out_mb |= MBX_14|MBX_13|MBX_12|MBX_11|MBX_10; } - if (ha->flags.scm_supported_f) { + if (ha->flags.scm_supported_f || vha->flags.nvme2_enabled) { mcp->mb[1] |= BIT_1; mcp->mb[16] = MSW(ha->sf_init_cb_dma); mcp->mb[17] = LSW(ha->sf_init_cb_dma); diff --git a/drivers/scsi/qla2xxx/qla_nvme.c b/drivers/scsi/qla2xxx/qla_nvme.c index 86b6d322a12c..5cc1bbb1ed74 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.c +++ b/drivers/scsi/qla2xxx/qla_nvme.c @@ -69,6 +69,14 @@ int qla_nvme_register_remote(struct scsi_qla_host *vha, struct fc_port *fcport) return ret; } + if (fcport->nvme_prli_service_param & NVME_PRLI_SP_SLER) + ql_log(ql_log_info, vha, 0x212a, + "PortID:%06x Supports SLER\n", req.port_id); + + if (fcport->nvme_prli_service_param & NVME_PRLI_SP_PI_CTRL) + ql_log(ql_log_info, vha, 0x212b, + "PortID:%06x Supports PI control\n", req.port_id); + rport = fcport->nvme_remote_port->private; rport->fcport = fcport; @@ -368,6 +376,7 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) struct srb_iocb *nvme = &sp->u.iocb_cmd; struct scatterlist *sgl, *sg; struct nvmefc_fcp_req *fd = nvme->u.nvme.desc; + struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; uint32_t rval = QLA_SUCCESS; /* Setup qpair pointers */ @@ -399,8 +408,6 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) } if (unlikely(!fd->sqid)) { - struct nvme_fc_cmd_iu *cmd = fd->cmdaddr; - if (cmd->sqe.common.opcode == nvme_admin_async_event) { nvme->u.nvme.aen_op = 1; atomic_inc(&ha->nvme_active_aen_cnt); @@ -446,6 +453,11 @@ static inline int qla2x00_start_nvme_mq(srb_t *sp) } else if (fd->io_dir == 0) { cmd_pkt->control_flags = 0; } + /* Set BIT_13 of control flags for Async event */ + if (vha->flags.nvme2_enabled && + cmd->sqe.common.opcode == nvme_admin_async_event) { + cmd_pkt->control_flags |= cpu_to_le16(CF_ADMIN_ASYNC_EVENT); + } /* Set NPORT-ID */ cmd_pkt->nport_handle = cpu_to_le16(sp->fcport->loop_id); diff --git a/drivers/scsi/qla2xxx/qla_nvme.h b/drivers/scsi/qla2xxx/qla_nvme.h index cf45a5b277f1..5d5f115a77c3 100644 --- a/drivers/scsi/qla2xxx/qla_nvme.h +++ b/drivers/scsi/qla2xxx/qla_nvme.h @@ -54,6 +54,7 @@ struct cmd_nvme { uint64_t rsvd; __le16 control_flags; /* Control Flags */ +#define CF_ADMIN_ASYNC_EVENT BIT_13 #define CF_NVME_FIRST_BURST_ENABLE BIT_11 #define CF_DIF_SEG_DESCR_ENABLE BIT_3 #define CF_DATA_SEG_DESCR_ENABLE BIT_2 diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 4a5a5e4acbbd..c7e3d8b485b4 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4231,6 +4231,7 @@ qla2x00_mem_alloc(struct qla_hw_data *ha, uint16_t req_len, uint16_t rsp_len, &ha->sf_init_cb_dma); if (!ha->sf_init_cb) goto fail_sf_init_cb; + memset(ha->sf_init_cb, 0, sizeof(struct init_sf_cb)); ql_dbg_pci(ql_dbg_init, ha->pdev, 0x0199, "sf_init_cb=%p.\n", ha->sf_init_cb); } -- cgit v1.2.3 From 767c8457b729e774f5a4646f60a0598ab868c798 Mon Sep 17 00:00:00 2001 From: Nilesh Javali Date: Thu, 3 Sep 2020 21:51:28 -0700 Subject: scsi: qla2xxx: Update version to 10.02.00.102-k Update internal driver version and remove module version macro. Link: https://lore.kernel.org/r/20200904045128.23631-14-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_os.c | 1 - drivers/scsi/qla2xxx/qla_version.h | 6 +++--- 2 files changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index c7e3d8b485b4..c77b8b627902 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -7961,7 +7961,6 @@ module_exit(qla2x00_module_exit); MODULE_AUTHOR("QLogic Corporation"); MODULE_DESCRIPTION("QLogic Fibre Channel HBA Driver"); MODULE_LICENSE("GPL"); -MODULE_VERSION(QLA2XXX_VERSION); MODULE_FIRMWARE(FW_FILE_ISP21XX); MODULE_FIRMWARE(FW_FILE_ISP22XX); MODULE_FIRMWARE(FW_FILE_ISP2300); diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index 8ccd9ba1ddef..0f5a5f17dcef 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,9 +7,9 @@ /* * Driver version */ -#define QLA2XXX_VERSION "10.01.00.25-k" +#define QLA2XXX_VERSION "10.02.00.102-k" #define QLA_DRIVER_MAJOR_VER 10 -#define QLA_DRIVER_MINOR_VER 1 +#define QLA_DRIVER_MINOR_VER 2 #define QLA_DRIVER_PATCH_VER 0 -#define QLA_DRIVER_BETA_VER 0 +#define QLA_DRIVER_BETA_VER 102 -- cgit v1.2.3 From 97d0e04d38b4e3b4510e251144c9e47873a89321 Mon Sep 17 00:00:00 2001 From: Qinglang Miao Date: Wed, 16 Sep 2020 14:21:33 +0800 Subject: scsi: bnx2i: Remove unnecessary mutex_init() The mutex bnx2i_dev_lock is initialized statically. It is unnecessary to initialize by mutex_init(). Link: https://lore.kernel.org/r/20200916062133.191000-1-miaoqinglang@huawei.com Acked-by: Manish Rangankar Signed-off-by: Qinglang Miao Signed-off-by: Martin K. Petersen --- drivers/scsi/bnx2i/bnx2i_init.c | 2 -- 1 file changed, 2 deletions(-) diff --git a/drivers/scsi/bnx2i/bnx2i_init.c b/drivers/scsi/bnx2i/bnx2i_init.c index 6018cdd17702..2b3f0c10478e 100644 --- a/drivers/scsi/bnx2i/bnx2i_init.c +++ b/drivers/scsi/bnx2i/bnx2i_init.c @@ -474,8 +474,6 @@ static int __init bnx2i_mod_init(void) if (sq_size && !is_power_of_2(sq_size)) sq_size = roundup_pow_of_two(sq_size); - mutex_init(&bnx2i_dev_lock); - bnx2i_scsi_xport_template = iscsi_register_transport(&bnx2i_iscsi_transport); if (!bnx2i_scsi_xport_template) { -- cgit v1.2.3 From 713a846884ce02e402e184c11473f6a19dce8665 Mon Sep 17 00:00:00 2001 From: Jing Xiangfeng Date: Fri, 18 Sep 2020 17:07:47 +0800 Subject: scsi: oak: Remove redundant initialization of variable ret No point in initializing ret with -ENOMEM. Link: https://lore.kernel.org/r/20200918090747.44645-1-jingxiangfeng@huawei.com Acked-by: Finn Thain Signed-off-by: Jing Xiangfeng Signed-off-by: Martin K. Petersen --- drivers/scsi/arm/oak.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/arm/oak.c b/drivers/scsi/arm/oak.c index 7c9d361e91a9..78f33d57c3e8 100644 --- a/drivers/scsi/arm/oak.c +++ b/drivers/scsi/arm/oak.c @@ -120,7 +120,7 @@ static struct scsi_host_template oakscsi_template = { static int oakscsi_probe(struct expansion_card *ec, const struct ecard_id *id) { struct Scsi_Host *host; - int ret = -ENOMEM; + int ret; ret = ecard_request_resources(ec); if (ret) -- cgit v1.2.3 From 3d1a99e2b5400fd32ec647b290340b5ed091d3ae Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Mon, 21 Sep 2020 21:45:58 +0800 Subject: scsi: libsas: Simplify the return expression of sas_discover_* functions Simplify the return expression. Link: https://lore.kernel.org/r/20200921134558.3478922-1-liushixin2@huawei.com Reviewed-by: Jason Yan Signed-off-by: Liu Shixin Signed-off-by: Martin K. Petersen --- drivers/scsi/libsas/sas_ata.c | 8 +------- drivers/scsi/libsas/sas_discover.c | 8 +------- 2 files changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/libsas/sas_ata.c b/drivers/scsi/libsas/sas_ata.c index 8b424c8ab834..6f58ace9a377 100644 --- a/drivers/scsi/libsas/sas_ata.c +++ b/drivers/scsi/libsas/sas_ata.c @@ -726,19 +726,13 @@ void sas_resume_sata(struct asd_sas_port *port) */ int sas_discover_sata(struct domain_device *dev) { - int res; - if (dev->dev_type == SAS_SATA_PM) return -ENODEV; dev->sata_dev.class = sas_get_ata_command_set(dev); sas_fill_in_rphy(dev, dev->rphy); - res = sas_notify_lldd_dev_found(dev); - if (res) - return res; - - return 0; + return sas_notify_lldd_dev_found(dev); } static void async_sas_ata_eh(void *data, async_cookie_t cookie) diff --git a/drivers/scsi/libsas/sas_discover.c b/drivers/scsi/libsas/sas_discover.c index 13ad2b3d314e..0f86a1fc6468 100644 --- a/drivers/scsi/libsas/sas_discover.c +++ b/drivers/scsi/libsas/sas_discover.c @@ -278,13 +278,7 @@ static void sas_resume_devices(struct work_struct *work) */ int sas_discover_end_dev(struct domain_device *dev) { - int res; - - res = sas_notify_lldd_dev_found(dev); - if (res) - return res; - - return 0; + return sas_notify_lldd_dev_found(dev); } /* ---------- Device registration and unregistration ---------- */ -- cgit v1.2.3 From 590b0d2372fef09f9755f40e43358fabf5a7fd63 Mon Sep 17 00:00:00 2001 From: Stanley Chu Date: Mon, 14 Sep 2020 13:00:51 +0800 Subject: scsi: ufs-mediatek: Support performance mode for inline encryption engine Some MediaTek UFS platforms support high-performance mode that inline encryption engine can be boosted while UFS is not clock-gated. The high-performance mode will be enabled if all below conditions are well-declaired in device tree, - Proper platform-specific compatible string which enables the host capability "UFS_MTK_CAP_BOOST_CRYPT_ENGINE". - "dvfsrc-vcore" node is available in this platform. - Required minimum vcore voltage for high-performance mode. - Clock mux and clock parents of inline encryption engine for both "low-power mode" and "high-performance mode". Link: https://lore.kernel.org/r/20200914050052.3974-2-stanley.chu@mediatek.com Signed-off-by: Stanley Chu Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-mediatek.c | 183 ++++++++++++++++++++++++++++++++++++++-- drivers/scsi/ufs/ufs-mediatek.h | 22 +++++ 2 files changed, 199 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/ufs/ufs-mediatek.c b/drivers/scsi/ufs/ufs-mediatek.c index ab65d1552bb8..8df73bc2f8cb 100644 --- a/drivers/scsi/ufs/ufs-mediatek.c +++ b/drivers/scsi/ufs/ufs-mediatek.c @@ -10,6 +10,7 @@ #include #include #include +#include #include #include #include @@ -44,6 +45,28 @@ static struct ufs_dev_fix ufs_mtk_dev_fixups[] = { END_FIX }; +static const struct ufs_mtk_host_cfg ufs_mtk_mt8192_cfg = { + .caps = UFS_MTK_CAP_BOOST_CRYPT_ENGINE, +}; + +static const struct of_device_id ufs_mtk_of_match[] = { + { + .compatible = "mediatek,mt8183-ufshci", + }, + { + .compatible = "mediatek,mt8192-ufshci", + .data = &ufs_mtk_mt8192_cfg + }, + {}, +}; + +static bool ufs_mtk_is_boost_crypt_enabled(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + + return (host->caps & UFS_MTK_CAP_BOOST_CRYPT_ENGINE); +} + static void ufs_mtk_cfg_unipro_cg(struct ufs_hba *hba, bool enable) { u32 tmp; @@ -294,6 +317,144 @@ static void ufs_mtk_mphy_power_on(struct ufs_hba *hba, bool on) host->mphy_powered_on = on; } +static int ufs_mtk_get_host_clk(struct device *dev, const char *name, + struct clk **clk_out) +{ + struct clk *clk; + int err = 0; + + clk = devm_clk_get(dev, name); + if (IS_ERR(clk)) + err = PTR_ERR(clk); + else + *clk_out = clk; + + return err; +} + +static void ufs_mtk_boost_crypt(struct ufs_hba *hba, bool boost) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + struct ufs_mtk_crypt_cfg *cfg; + struct regulator *reg; + int volt, ret; + + if (!ufs_mtk_is_boost_crypt_enabled(hba)) + return; + + cfg = host->crypt; + volt = cfg->vcore_volt; + reg = cfg->reg_vcore; + + ret = clk_prepare_enable(cfg->clk_crypt_mux); + if (ret) { + dev_info(hba->dev, "clk_prepare_enable(): %d\n", + ret); + return; + } + + if (boost) { + ret = regulator_set_voltage(reg, volt, INT_MAX); + if (ret) { + dev_info(hba->dev, + "failed to set vcore to %d\n", volt); + goto out; + } + + ret = clk_set_parent(cfg->clk_crypt_mux, + cfg->clk_crypt_perf); + if (ret) { + dev_info(hba->dev, + "failed to set clk_crypt_perf\n"); + regulator_set_voltage(reg, 0, INT_MAX); + goto out; + } + } else { + ret = clk_set_parent(cfg->clk_crypt_mux, + cfg->clk_crypt_lp); + if (ret) { + dev_info(hba->dev, + "failed to set clk_crypt_lp\n"); + goto out; + } + + ret = regulator_set_voltage(reg, 0, INT_MAX); + if (ret) { + dev_info(hba->dev, + "failed to set vcore to MIN\n"); + } + } +out: + clk_disable_unprepare(cfg->clk_crypt_mux); +} + +static int ufs_mtk_init_host_clk(struct ufs_hba *hba, const char *name, + struct clk **clk) +{ + int ret; + + ret = ufs_mtk_get_host_clk(hba->dev, name, clk); + if (ret) { + dev_info(hba->dev, "%s: failed to get %s: %d", __func__, + name, ret); + } + + return ret; +} + +static void ufs_mtk_init_host_caps(struct ufs_hba *hba) +{ + struct ufs_mtk_host *host = ufshcd_get_variant(hba); + struct ufs_mtk_crypt_cfg *cfg; + struct device *dev = hba->dev; + struct regulator *reg; + u32 volt; + + host->caps = host->cfg->caps; + + if (!ufs_mtk_is_boost_crypt_enabled(hba)) + return; + + host->crypt = devm_kzalloc(dev, sizeof(*(host->crypt)), + GFP_KERNEL); + if (!host->crypt) + goto disable_caps; + + reg = devm_regulator_get_optional(dev, "dvfsrc-vcore"); + if (IS_ERR(reg)) { + dev_info(dev, "failed to get dvfsrc-vcore: %ld", + PTR_ERR(reg)); + goto disable_caps; + } + + if (of_property_read_u32(dev->of_node, "boost-crypt-vcore-min", + &volt)) { + dev_info(dev, "failed to get boost-crypt-vcore-min"); + goto disable_caps; + } + + cfg = host->crypt; + if (ufs_mtk_init_host_clk(hba, "crypt_mux", + &cfg->clk_crypt_mux)) + goto disable_caps; + + if (ufs_mtk_init_host_clk(hba, "crypt_lp", + &cfg->clk_crypt_lp)) + goto disable_caps; + + if (ufs_mtk_init_host_clk(hba, "crypt_perf", + &cfg->clk_crypt_perf)) + goto disable_caps; + + cfg->reg_vcore = reg; + cfg->vcore_volt = volt; + dev_info(dev, "caps: boost-crypt"); + return; + +disable_caps: + host->caps &= ~UFS_MTK_CAP_BOOST_CRYPT_ENGINE; +} + /** * ufs_mtk_setup_clocks - enables/disable clocks * @hba: host controller instance @@ -336,12 +497,14 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on, } if (clk_pwr_off) { + ufs_mtk_boost_crypt(hba, on); ufs_mtk_setup_ref_clk(hba, on); ufs_mtk_mphy_power_on(hba, on); } } else if (on && status == POST_CHANGE) { ufs_mtk_mphy_power_on(hba, on); ufs_mtk_setup_ref_clk(hba, on); + ufs_mtk_boost_crypt(hba, on); } return ret; @@ -359,8 +522,9 @@ static int ufs_mtk_setup_clocks(struct ufs_hba *hba, bool on, */ static int ufs_mtk_init(struct ufs_hba *hba) { - struct ufs_mtk_host *host; + const struct of_device_id *id; struct device *dev = hba->dev; + struct ufs_mtk_host *host; int err = 0; host = devm_kzalloc(dev, sizeof(*host), GFP_KERNEL); @@ -373,6 +537,18 @@ static int ufs_mtk_init(struct ufs_hba *hba) host->hba = hba; ufshcd_set_variant(hba, host); + /* Get host capability and platform data */ + id = of_match_device(ufs_mtk_of_match, dev); + if (!id) { + err = -EINVAL; + goto out; + } + + if (id->data) { + host->cfg = (struct ufs_mtk_host_cfg *)id->data; + ufs_mtk_init_host_caps(hba); + } + err = ufs_mtk_bind_mphy(hba); if (err) goto out_variant_clear; @@ -782,11 +958,6 @@ static int ufs_mtk_remove(struct platform_device *pdev) return 0; } -static const struct of_device_id ufs_mtk_of_match[] = { - { .compatible = "mediatek,mt8183-ufshci"}, - {}, -}; - static const struct dev_pm_ops ufs_mtk_pm_ops = { .suspend = ufshcd_pltfrm_suspend, .resume = ufshcd_pltfrm_resume, diff --git a/drivers/scsi/ufs/ufs-mediatek.h b/drivers/scsi/ufs/ufs-mediatek.h index 5c32d5f52759..2b6a1312c9bc 100644 --- a/drivers/scsi/ufs/ufs-mediatek.h +++ b/drivers/scsi/ufs/ufs-mediatek.h @@ -89,9 +89,31 @@ enum { TX_CLK_GATE_EN = 3, }; +/* + * Host capability + */ +enum ufs_mtk_host_caps { + UFS_MTK_CAP_BOOST_CRYPT_ENGINE = 1 << 0, +}; + +struct ufs_mtk_crypt_cfg { + struct regulator *reg_vcore; + struct clk *clk_crypt_perf; + struct clk *clk_crypt_mux; + struct clk *clk_crypt_lp; + int vcore_volt; +}; + +struct ufs_mtk_host_cfg { + enum ufs_mtk_host_caps caps; +}; + struct ufs_mtk_host { struct ufs_hba *hba; struct phy *mphy; + struct ufs_mtk_host_cfg *cfg; + struct ufs_mtk_crypt_cfg *crypt; + enum ufs_mtk_host_caps caps; struct reset_control *hci_reset; struct reset_control *unipro_reset; struct reset_control *crypto_reset; -- cgit v1.2.3 From c1a3bf99d76e5ae5537265433def019a34a9dac0 Mon Sep 17 00:00:00 2001 From: Stanley Chu Date: Mon, 14 Sep 2020 13:00:52 +0800 Subject: scsi: ufs-mediatek: dt-bindings: Add mt8192-ufshci compatible string Add "mediatek,mt8192-ufshci" compatible string to for MediaTek UFS host controller present on MT8192 chipsets. Link: https://lore.kernel.org/r/20200914050052.3974-3-stanley.chu@mediatek.com Acked-by: Rob Herring Signed-off-by: Stanley Chu Signed-off-by: Martin K. Petersen --- Documentation/devicetree/bindings/ufs/ufs-mediatek.txt | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt b/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt index 72aab8547308..63a953b672d2 100644 --- a/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt +++ b/Documentation/devicetree/bindings/ufs/ufs-mediatek.txt @@ -9,7 +9,9 @@ contain a phandle reference to UFS M-PHY node. Required properties for UFS nodes: - compatible : Compatible list, contains the following controller: "mediatek,mt8183-ufshci" for MediaTek UFS host controller - present on MT81xx chipsets. + present on MT8183 chipsets. + "mediatek,mt8192-ufshci" for MediaTek UFS host controller + present on MT8192 chipsets. - reg : Address and length of the UFS register set. - phys : phandle to m-phy. - clocks : List of phandle and clock specifier pairs. -- cgit v1.2.3 From 2dd39fad92a1f25f6083b172160ec2e7efbf82c9 Mon Sep 17 00:00:00 2001 From: Bean Huo Date: Wed, 16 Sep 2020 10:40:17 +0200 Subject: scsi: ufs: ufs-exynos: Use devm_platform_ioremap_resource_byname() Use devm_platform_ioremap_resource_byname() to simplify the code. Link: https://lore.kernel.org/r/20200916084017.14086-1-huobean@gmail.com Acked-by: Alim Akhtar Signed-off-by: Bean Huo Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufs-exynos.c | 10 +++------- 1 file changed, 3 insertions(+), 7 deletions(-) diff --git a/drivers/scsi/ufs/ufs-exynos.c b/drivers/scsi/ufs/ufs-exynos.c index ed4354472d08..5e6b95dbb578 100644 --- a/drivers/scsi/ufs/ufs-exynos.c +++ b/drivers/scsi/ufs/ufs-exynos.c @@ -940,7 +940,6 @@ static int exynos_ufs_init(struct ufs_hba *hba) struct device *dev = hba->dev; struct platform_device *pdev = to_platform_device(dev); struct exynos_ufs *ufs; - struct resource *res; int ret; ufs = devm_kzalloc(dev, sizeof(*ufs), GFP_KERNEL); @@ -948,24 +947,21 @@ static int exynos_ufs_init(struct ufs_hba *hba) return -ENOMEM; /* exynos-specific hci */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "vs_hci"); - ufs->reg_hci = devm_ioremap_resource(dev, res); + ufs->reg_hci = devm_platform_ioremap_resource_byname(pdev, "vs_hci"); if (IS_ERR(ufs->reg_hci)) { dev_err(dev, "cannot ioremap for hci vendor register\n"); return PTR_ERR(ufs->reg_hci); } /* unipro */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "unipro"); - ufs->reg_unipro = devm_ioremap_resource(dev, res); + ufs->reg_unipro = devm_platform_ioremap_resource_byname(pdev, "unipro"); if (IS_ERR(ufs->reg_unipro)) { dev_err(dev, "cannot ioremap for unipro register\n"); return PTR_ERR(ufs->reg_unipro); } /* ufs protector */ - res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "ufsp"); - ufs->reg_ufsp = devm_ioremap_resource(dev, res); + ufs->reg_ufsp = devm_platform_ioremap_resource_byname(pdev, "ufsp"); if (IS_ERR(ufs->reg_ufsp)) { dev_err(dev, "cannot ioremap for ufs protector register\n"); return PTR_ERR(ufs->reg_ufsp); -- cgit v1.2.3 From 7dc0f671d89c03db95db3d4cd57257790d7a4b80 Mon Sep 17 00:00:00 2001 From: Saurav Kashyap Date: Tue, 29 Sep 2020 03:21:46 -0700 Subject: scsi: qla2xxx: Correct the check for sscanf() return value Since the version string has been modified, sscanf() returns 4 instead of 6. Link: https://lore.kernel.org/r/20200929102152.32278-2-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Saurav Kashyap Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_tmpl.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c index 8dc82cfd38b2..591df89a4d13 100644 --- a/drivers/scsi/qla2xxx/qla_tmpl.c +++ b/drivers/scsi/qla2xxx/qla_tmpl.c @@ -906,8 +906,8 @@ qla27xx_driver_info(struct qla27xx_fwdt_template *tmp) uint8_t v[] = { 0, 0, 0, 0, 0, 0 }; WARN_ON_ONCE(sscanf(qla2x00_version_str, - "%hhu.%hhu.%hhu.%hhu.%hhu.%hhu", - v+0, v+1, v+2, v+3, v+4, v+5) != 6); + "%hhu.%hhu.%hhu.%hhu", + v + 0, v + 1, v + 2, v + 3) != 4); tmp->driver_info[0] = cpu_to_le32( v[3] << 24 | v[2] << 16 | v[1] << 8 | v[0]); -- cgit v1.2.3 From 44f5a37d1e3e4e392412318666f8477601ae3024 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Tue, 29 Sep 2020 03:21:47 -0700 Subject: scsi: qla2xxx: Fix buffer-buffer credit extraction error Current code uses wrong mailbox option to extract bbc from firmware. This field is nested inside of PLOGI payload. Extract bbc from PLOGI template payload. Link: https://lore.kernel.org/r/20200929102152.32278-3-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_def.h | 4 +++- drivers/scsi/qla2xxx/qla_init.c | 50 +++++++++++++++++++++-------------------- drivers/scsi/qla2xxx/qla_iocb.c | 3 +-- drivers/scsi/qla2xxx/qla_mbx.c | 39 -------------------------------- drivers/scsi/qla2xxx/qla_os.c | 19 ++++------------ 5 files changed, 34 insertions(+), 81 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index fa31301528bd..98814a9a8ea6 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -3915,6 +3915,7 @@ struct qla_hw_data { /* Enabled in Driver */ uint32_t scm_enabled:1; uint32_t max_req_queue_warned:1; + uint32_t plogi_template_valid:1; } flags; uint16_t max_exchg; @@ -4263,7 +4264,8 @@ struct qla_hw_data { int exchoffld_count; /* n2n */ - struct els_plogi_payload plogi_els_payld; + struct fc_els_flogi plogi_els_payld; +#define LOGIN_TEMPLATE_SIZE (sizeof(struct fc_els_flogi) - 4) void *swl; diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index f71f3a15256c..6d69ab23a2f3 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -4991,6 +4991,29 @@ qla2x00_free_fcport(fc_port_t *fcport) kfree(fcport); } +static void qla_get_login_template(scsi_qla_host_t *vha) +{ + struct qla_hw_data *ha = vha->hw; + int rval; + u32 *bp, sz; + __be32 *q; + + memset(ha->init_cb, 0, ha->init_cb_size); + sz = min_t(int, sizeof(struct fc_els_flogi), ha->init_cb_size); + rval = qla24xx_get_port_login_templ(vha, ha->init_cb_dma, + ha->init_cb, sz); + if (rval != QLA_SUCCESS) { + ql_dbg(ql_dbg_init, vha, 0x00d1, + "PLOGI ELS param read fail.\n"); + return; + } + q = (__be32 *)&ha->plogi_els_payld.fl_csp; + + bp = (uint32_t *)ha->init_cb; + cpu_to_be32_array(q, bp, sz / 4); + ha->flags.plogi_template_valid = 1; +} + /* * qla2x00_configure_loop * Updates Fibre Channel Device Database with what is actually on loop. @@ -5034,6 +5057,7 @@ qla2x00_configure_loop(scsi_qla_host_t *vha) clear_bit(RSCN_UPDATE, &vha->dpc_flags); qla2x00_get_data_rate(vha); + qla_get_login_template(vha); /* Determine what we need to do */ if ((ha->current_topology == ISP_CFG_FL || @@ -5118,32 +5142,11 @@ qla2x00_configure_loop(scsi_qla_host_t *vha) static int qla2x00_configure_n2n_loop(scsi_qla_host_t *vha) { - struct qla_hw_data *ha = vha->hw; unsigned long flags; fc_port_t *fcport; - int rval; - - if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags)) { - /* borrowing */ - u32 *bp, sz; - - memset(ha->init_cb, 0, ha->init_cb_size); - sz = min_t(int, sizeof(struct els_plogi_payload), - ha->init_cb_size); - rval = qla24xx_get_port_login_templ(vha, ha->init_cb_dma, - ha->init_cb, sz); - if (rval == QLA_SUCCESS) { - __be32 *q = &ha->plogi_els_payld.data[0]; - bp = (uint32_t *)ha->init_cb; - cpu_to_be32_array(q, bp, sz / 4); - memcpy(bp, q, sizeof(ha->plogi_els_payld.data)); - } else { - ql_dbg(ql_dbg_init, vha, 0x00d1, - "PLOGI ELS param read fail.\n"); - goto skip_login; - } - } + if (test_and_clear_bit(N2N_LOGIN_NEEDED, &vha->dpc_flags)) + set_bit(RELOGIN_NEEDED, &vha->dpc_flags); list_for_each_entry(fcport, &vha->vp_fcports, list) { if (fcport->n2n_flag) { @@ -5152,7 +5155,6 @@ static int qla2x00_configure_n2n_loop(scsi_qla_host_t *vha) } } -skip_login: spin_lock_irqsave(&vha->work_lock, flags); vha->scan.scan_retry++; spin_unlock_irqrestore(&vha->work_lock, flags); diff --git a/drivers/scsi/qla2xxx/qla_iocb.c b/drivers/scsi/qla2xxx/qla_iocb.c index 310db7e4e233..3202c9ca42f6 100644 --- a/drivers/scsi/qla2xxx/qla_iocb.c +++ b/drivers/scsi/qla2xxx/qla_iocb.c @@ -3013,8 +3013,7 @@ qla24xx_els_dcmd2_iocb(scsi_qla_host_t *vha, int els_opcode, memset(ptr, 0, sizeof(struct els_plogi_payload)); memset(resp_ptr, 0, sizeof(struct els_plogi_payload)); memcpy(elsio->u.els_plogi.els_plogi_pyld->data, - &ha->plogi_els_payld.data, - sizeof(elsio->u.els_plogi.els_plogi_pyld->data)); + &ha->plogi_els_payld.fl_csp, LOGIN_TEMPLATE_SIZE); elsio->u.els_plogi.els_cmd = els_opcode; elsio->u.els_plogi.els_plogi_pyld->opcode = els_opcode; diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index 597617b59fbb..c1580eec6b27 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -4977,45 +4977,6 @@ qla25xx_set_els_cmds_supported(scsi_qla_host_t *vha) return rval; } -int -qla24xx_get_buffer_credits(scsi_qla_host_t *vha, struct buffer_credit_24xx *bbc, - dma_addr_t bbc_dma) -{ - mbx_cmd_t mc; - mbx_cmd_t *mcp = &mc; - int rval; - - if (!IS_FWI2_CAPABLE(vha->hw)) - return QLA_FUNCTION_FAILED; - - ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x118e, - "Entered %s.\n", __func__); - - mcp->mb[0] = MBC_GET_RNID_PARAMS; - mcp->mb[1] = RNID_BUFFER_CREDITS << 8; - mcp->mb[2] = MSW(LSD(bbc_dma)); - mcp->mb[3] = LSW(LSD(bbc_dma)); - mcp->mb[6] = MSW(MSD(bbc_dma)); - mcp->mb[7] = LSW(MSD(bbc_dma)); - mcp->mb[8] = sizeof(*bbc) / sizeof(*bbc->parameter); - mcp->out_mb = MBX_8|MBX_7|MBX_6|MBX_3|MBX_2|MBX_1|MBX_0; - mcp->in_mb = MBX_1|MBX_0; - mcp->buf_size = sizeof(*bbc); - mcp->flags = MBX_DMA_IN; - mcp->tov = MBX_TOV_SECONDS; - rval = qla2x00_mailbox_command(vha, mcp); - - if (rval != QLA_SUCCESS) { - ql_dbg(ql_dbg_mbx, vha, 0x118f, - "Failed=%x mb[0]=%x,%x.\n", rval, mcp->mb[0], mcp->mb[1]); - } else { - ql_dbg(ql_dbg_mbx + ql_dbg_verbose, vha, 0x1190, - "Done %s.\n", __func__); - } - - return rval; -} - static int qla2x00_read_asic_temperature(scsi_qla_host_t *vha, uint16_t *temp) { diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index c77b8b627902..9d6292928c32 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -5837,12 +5837,10 @@ void qla24xx_process_purex_rdp(struct scsi_qla_host *vha, dma_addr_t rsp_els_dma; dma_addr_t rsp_payload_dma; dma_addr_t stat_dma; - dma_addr_t bbc_dma; dma_addr_t sfp_dma; struct els_entry_24xx *rsp_els = NULL; struct rdp_rsp_payload *rsp_payload = NULL; struct link_statistics *stat = NULL; - struct buffer_credit_24xx *bbc = NULL; uint8_t *sfp = NULL; uint16_t sfp_flags = 0; uint rsp_payload_length = sizeof(*rsp_payload); @@ -5886,9 +5884,6 @@ void qla24xx_process_purex_rdp(struct scsi_qla_host *vha, stat = dma_alloc_coherent(&ha->pdev->dev, sizeof(*stat), &stat_dma, GFP_KERNEL); - bbc = dma_alloc_coherent(&ha->pdev->dev, sizeof(*bbc), - &bbc_dma, GFP_KERNEL); - /* Prepare Response IOCB */ rsp_els->entry_type = ELS_IOCB_TYPE; rsp_els->entry_count = 1; @@ -6042,13 +6037,10 @@ void qla24xx_process_purex_rdp(struct scsi_qla_host *vha, rsp_payload->buffer_credit_desc.attached_fcport_b2b = cpu_to_be32(0); rsp_payload->buffer_credit_desc.fcport_rtt = cpu_to_be32(0); - if (bbc) { - memset(bbc, 0, sizeof(*bbc)); - rval = qla24xx_get_buffer_credits(vha, bbc, bbc_dma); - if (!rval) { - rsp_payload->buffer_credit_desc.fcport_b2b = - cpu_to_be32(LSW(bbc->parameter[0])); - } + if (ha->flags.plogi_template_valid) { + uint32_t tmp = + be16_to_cpu(ha->plogi_els_payld.fl_csp.sp_bb_cred); + rsp_payload->buffer_credit_desc.fcport_b2b = cpu_to_be32(tmp); } if (rsp_payload_length < sizeof(*rsp_payload)) @@ -6226,9 +6218,6 @@ send: } dealloc: - if (bbc) - dma_free_coherent(&ha->pdev->dev, sizeof(*bbc), - bbc, bbc_dma); if (stat) dma_free_coherent(&ha->pdev->dev, sizeof(*stat), stat, stat_dma); -- cgit v1.2.3 From 7a6cdbd5e87515ebf6231b762ad903c7cff87b9c Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Tue, 29 Sep 2020 03:21:48 -0700 Subject: scsi: qla2xxx: Fix MPI reset needed message When printing the message: "MPI Heartbeat stop. MPI reset is not needed.." ..the wrong register was checked leading to always printing that MPI reset is not needed, even when it is needed. Fix the MPI reset message. Link: https://lore.kernel.org/r/20200929102152.32278-4-njavali@marvell.com Fixes: cbb01c2f2f63 ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling") Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_isr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c index 4baa83996813..62097733c6e0 100644 --- a/drivers/scsi/qla2xxx/qla_isr.c +++ b/drivers/scsi/qla2xxx/qla_isr.c @@ -767,7 +767,7 @@ qla27xx_handle_8200_aen(scsi_qla_host_t *vha, uint16_t *mb) ql_log(ql_log_warn, vha, 0x02f0, "MPI Heartbeat stop. MPI reset is%s needed. " "MB0[%xh] MB1[%xh] MB2[%xh] MB3[%xh]\n", - mb[0] & BIT_8 ? "" : " not", + mb[1] & BIT_8 ? "" : " not", mb[0], mb[1], mb[2], mb[3]); if ((mb[1] & BIT_8) == 0) -- cgit v1.2.3 From 3e6efab865ac943f4ec43913eb665695737112b0 Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Tue, 29 Sep 2020 03:21:49 -0700 Subject: scsi: qla2xxx: Fix reset of MPI firmware Normally, the MPI firmware is reset when an MPI dump is collected. If an unsaved MPI dump exists in the driver, though, an alternate mechanism is used. This mechanism, which was not fully correct, is not recommended and instead an MPI dump template walk is suggested to perform the MPI reset. To allow for the MPI dump template walk, extra space is reserved in the MPI dump buffer which gets used only when there is already an MPI dump in place. Link: https://lore.kernel.org/r/20200929102152.32278-5-njavali@marvell.com Fixes: cbb01c2f2f63 ("scsi: qla2xxx: Fix MPI failure AEN (8200) handling") Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_attr.c | 10 +++++++-- drivers/scsi/qla2xxx/qla_gbl.h | 1 - drivers/scsi/qla2xxx/qla_init.c | 2 ++ drivers/scsi/qla2xxx/qla_tmpl.c | 49 +++++++++++------------------------------ 4 files changed, 23 insertions(+), 39 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c index 1ee747ba4ecc..284b1cc91c80 100644 --- a/drivers/scsi/qla2xxx/qla_attr.c +++ b/drivers/scsi/qla2xxx/qla_attr.c @@ -157,6 +157,14 @@ qla2x00_sysfs_write_fw_dump(struct file *filp, struct kobject *kobj, vha->host_no); } break; + case 10: + if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) { + ql_log(ql_log_info, vha, 0x70e9, + "Issuing MPI firmware dump on host#%ld.\n", + vha->host_no); + ha->isp_ops->mpi_fw_dump(vha, 0); + } + break; } return count; } @@ -744,8 +752,6 @@ qla2x00_sysfs_write_reset(struct file *filp, struct kobject *kobj, qla83xx_idc_audit(vha, IDC_AUDIT_TIMESTAMP); qla83xx_idc_unlock(vha, 0); break; - } else if (IS_QLA27XX(ha) || IS_QLA28XX(ha)) { - qla27xx_reset_mpi(vha); } else { /* Make sure FC side is not in reset */ WARN_ON_ONCE(qla2x00_wait_for_hba_online(vha) != diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h index 9c4d077edf9e..26dc055d93b3 100644 --- a/drivers/scsi/qla2xxx/qla_gbl.h +++ b/drivers/scsi/qla2xxx/qla_gbl.h @@ -945,6 +945,5 @@ extern void qla2x00_dfs_remove_rport(scsi_qla_host_t *vha, struct fc_port *fp); /* nvme.c */ void qla_nvme_unregister_remote_port(struct fc_port *fcport); -void qla27xx_reset_mpi(scsi_qla_host_t *vha); void qla_handle_els_plogi_done(scsi_qla_host_t *vha, struct event_arg *ea); #endif /* _QLA_GBL_H */ diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c index 6d69ab23a2f3..e1abc1b8de54 100644 --- a/drivers/scsi/qla2xxx/qla_init.c +++ b/drivers/scsi/qla2xxx/qla_init.c @@ -3298,6 +3298,8 @@ qla2x00_alloc_fw_dump(scsi_qla_host_t *vha) j, fwdt->dump_size); dump_size += fwdt->dump_size; } + /* Add space for spare MPI fw dump. */ + dump_size += ha->fwdt[1].dump_size; } else { req_q_size = req->length * sizeof(request_t); rsp_q_size = rsp->length * sizeof(response_t); diff --git a/drivers/scsi/qla2xxx/qla_tmpl.c b/drivers/scsi/qla2xxx/qla_tmpl.c index 591df89a4d13..0af3e7fa31f0 100644 --- a/drivers/scsi/qla2xxx/qla_tmpl.c +++ b/drivers/scsi/qla2xxx/qla_tmpl.c @@ -12,33 +12,6 @@ #define IOBASE(vha) IOBAR(ISPREG(vha)) #define INVALID_ENTRY ((struct qla27xx_fwdt_entry *)0xffffffffffffffffUL) -/* hardware_lock assumed held. */ -static void -qla27xx_write_remote_reg(struct scsi_qla_host *vha, - u32 addr, u32 data) -{ - struct device_reg_24xx __iomem *reg = &vha->hw->iobase->isp24; - - ql_dbg(ql_dbg_misc, vha, 0xd300, - "%s: addr/data = %xh/%xh\n", __func__, addr, data); - - wrt_reg_dword(®->iobase_addr, 0x40); - wrt_reg_dword(®->iobase_c4, data); - wrt_reg_dword(®->iobase_window, addr); -} - -void -qla27xx_reset_mpi(scsi_qla_host_t *vha) -{ - ql_dbg(ql_dbg_misc + ql_dbg_verbose, vha, 0xd301, - "Entered %s.\n", __func__); - - qla27xx_write_remote_reg(vha, 0x104050, 0x40004); - qla27xx_write_remote_reg(vha, 0x10405c, 0x4); - - vha->hw->stat.num_mpi_reset++; -} - static inline void qla27xx_insert16(uint16_t value, void *buf, ulong *len) { @@ -1028,7 +1001,6 @@ void qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked) { ulong flags = 0; - bool need_mpi_reset = true; #ifndef __CHECKER__ if (!hardware_locked) @@ -1036,14 +1008,20 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked) #endif if (!vha->hw->mpi_fw_dump) { ql_log(ql_log_warn, vha, 0x02f3, "-> mpi_fwdump no buffer\n"); - } else if (vha->hw->mpi_fw_dumped) { - ql_log(ql_log_warn, vha, 0x02f4, - "-> MPI firmware already dumped (%p) -- ignoring request\n", - vha->hw->mpi_fw_dump); } else { struct fwdt *fwdt = &vha->hw->fwdt[1]; ulong len; void *buf = vha->hw->mpi_fw_dump; + bool walk_template_only = false; + + if (vha->hw->mpi_fw_dumped) { + /* Use the spare area for any further dumps. */ + buf += fwdt->dump_size; + walk_template_only = true; + ql_log(ql_log_warn, vha, 0x02f4, + "-> MPI firmware already dumped -- dump saving to temporary buffer %p.\n", + buf); + } ql_log(ql_log_warn, vha, 0x02f5, "-> fwdt1 running...\n"); if (!fwdt->template) { @@ -1058,9 +1036,10 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked) ql_log(ql_log_warn, vha, 0x02f7, "-> fwdt1 fwdump residual=%+ld\n", fwdt->dump_size - len); - } else { - need_mpi_reset = false; } + vha->hw->stat.num_mpi_reset++; + if (walk_template_only) + goto bailout; vha->hw->mpi_fw_dump_len = len; vha->hw->mpi_fw_dumped = 1; @@ -1072,8 +1051,6 @@ qla27xx_mpi_fwdump(scsi_qla_host_t *vha, int hardware_locked) } bailout: - if (need_mpi_reset) - qla27xx_reset_mpi(vha); #ifndef __CHECKER__ if (!hardware_locked) spin_unlock_irqrestore(&vha->hw->hardware_lock, flags); -- cgit v1.2.3 From 50457dab670f396557e60c07f086358460876353 Mon Sep 17 00:00:00 2001 From: Quinn Tran Date: Tue, 29 Sep 2020 03:21:50 -0700 Subject: scsi: qla2xxx: Fix crash on session cleanup with unload On unload, session cleanup prematurely gave the signal for driver unload path to advance. Link: https://lore.kernel.org/r/20200929102152.32278-6-njavali@marvell.com Fixes: 726b85487067 ("qla2xxx: Add framework for async fabric discovery") Cc: stable@vger.kernel.org Reviewed-by: Himanshu Madhani Signed-off-by: Quinn Tran Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_target.c | 13 +++++++------ 1 file changed, 7 insertions(+), 6 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_target.c b/drivers/scsi/qla2xxx/qla_target.c index 1ef39a96c4c2..eb4aa97bc71f 100644 --- a/drivers/scsi/qla2xxx/qla_target.c +++ b/drivers/scsi/qla2xxx/qla_target.c @@ -1231,14 +1231,15 @@ void qlt_schedule_sess_for_deletion(struct fc_port *sess) case DSC_DELETE_PEND: return; case DSC_DELETED: - if (tgt && tgt->tgt_stop && (tgt->sess_count == 0)) - wake_up_all(&tgt->waitQ); - if (sess->vha->fcport_count == 0) - wake_up_all(&sess->vha->fcport_waitQ); - if (!sess->plogi_link[QLT_PLOGI_LINK_SAME_WWN] && - !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) + !sess->plogi_link[QLT_PLOGI_LINK_CONFLICT]) { + if (tgt && tgt->tgt_stop && tgt->sess_count == 0) + wake_up_all(&tgt->waitQ); + + if (sess->vha->fcport_count == 0) + wake_up_all(&sess->vha->fcport_waitQ); return; + } break; case DSC_UPD_FCPORT: /* -- cgit v1.2.3 From 94eda2717826015a80ca271394c4378747de8936 Mon Sep 17 00:00:00 2001 From: Arun Easi Date: Tue, 29 Sep 2020 03:21:51 -0700 Subject: scsi: qla2xxx: Fix point-to-point (N2N) device discovery issue Driver was using a shorter timeout waiting for PLOGI from the peer in point-to-point configurations. Some devices takes some time (~4 seconds) to initiate the PLOGI. This peer initiating PLOGI is when the peer has a higher P-WWN. Increase the wait time based on N2N R_A_TOV. Link: https://lore.kernel.org/r/20200929102152.32278-7-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Arun Easi Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_def.h | 2 ++ drivers/scsi/qla2xxx/qla_mbx.c | 3 ++- drivers/scsi/qla2xxx/qla_os.c | 2 ++ 3 files changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h index 98814a9a8ea6..b0b4228050e9 100644 --- a/drivers/scsi/qla2xxx/qla_def.h +++ b/drivers/scsi/qla2xxx/qla_def.h @@ -5147,6 +5147,8 @@ struct sff_8247_a0 { ha->current_topology == ISP_CFG_N || \ !ha->current_topology) +#define QLA_N2N_WAIT_TIME 5 /* 2 * ra_tov(n2n) + 1 */ + #define NVME_TYPE(fcport) \ (fcport->fc4_type & FS_FC4TYPE_NVME) \ diff --git a/drivers/scsi/qla2xxx/qla_mbx.c b/drivers/scsi/qla2xxx/qla_mbx.c index c1580eec6b27..bf858179d23c 100644 --- a/drivers/scsi/qla2xxx/qla_mbx.c +++ b/drivers/scsi/qla2xxx/qla_mbx.c @@ -3994,7 +3994,8 @@ qla24xx_report_id_acquisition(scsi_qla_host_t *vha, if (fcport) { fcport->plogi_nack_done_deadline = jiffies + HZ; - fcport->dm_login_expire = jiffies + 2*HZ; + fcport->dm_login_expire = jiffies + + QLA_N2N_WAIT_TIME * HZ; fcport->scan_state = QLA_FCPORT_FOUND; fcport->n2n_flag = 1; fcport->keep_nport_handle = 1; diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 9d6292928c32..df8e50af2b96 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -5097,6 +5097,8 @@ void qla24xx_create_new_sess(struct scsi_qla_host *vha, struct qla_work_evt *e) fcport->fc4_type = e->u.new_sess.fc4_type; if (e->u.new_sess.fc4_type & FS_FCP_IS_N2N) { + fcport->dm_login_expire = jiffies + + QLA_N2N_WAIT_TIME * HZ; fcport->fc4_type = FS_FC4TYPE_FCP; fcport->n2n_flag = 1; if (vha->flags.nvme_enabled) -- cgit v1.2.3 From 718c2fe92b208415fa76550975dc5d7708448f7c Mon Sep 17 00:00:00 2001 From: Nilesh Javali Date: Tue, 29 Sep 2020 03:21:52 -0700 Subject: scsi: qla2xxx: Update version to 10.02.00.103-k Link: https://lore.kernel.org/r/20200929102152.32278-8-njavali@marvell.com Reviewed-by: Himanshu Madhani Signed-off-by: Nilesh Javali Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_version.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_version.h b/drivers/scsi/qla2xxx/qla_version.h index 0f5a5f17dcef..120e511d2ed5 100644 --- a/drivers/scsi/qla2xxx/qla_version.h +++ b/drivers/scsi/qla2xxx/qla_version.h @@ -7,9 +7,9 @@ /* * Driver version */ -#define QLA2XXX_VERSION "10.02.00.102-k" +#define QLA2XXX_VERSION "10.02.00.103-k" #define QLA_DRIVER_MAJOR_VER 10 #define QLA_DRIVER_MINOR_VER 2 #define QLA_DRIVER_PATCH_VER 0 -#define QLA_DRIVER_BETA_VER 102 +#define QLA_DRIVER_BETA_VER 103 -- cgit v1.2.3 From 7010645ba7256992818b518163f46bd4cdf8002a Mon Sep 17 00:00:00 2001 From: Roman Bolshakov Date: Tue, 29 Sep 2020 15:59:57 +0300 Subject: scsi: target: core: Add CONTROL field for trace events trace-cmd report doesn't show events from target subsystem because scsi_command_size() leaks through event format string: [target:target_sequencer_start] function scsi_command_size not defined [target:target_cmd_complete] function scsi_command_size not defined Addition of scsi_command_size() to plugin_scsi.c in trace-cmd doesn't help because an expression is used inside TP_printk(). trace-cmd event parser doesn't understand minus sign inside [ ]: Error: expected ']' but read '-' Rather than duplicating kernel code in plugin_scsi.c, provide a dedicated field for CONTROL byte. Link: https://lore.kernel.org/r/20200929125957.83069-1-r.bolshakov@yadro.com Reviewed-by: Mike Christie Signed-off-by: Roman Bolshakov Signed-off-by: Martin K. Petersen --- include/scsi/scsi_common.h | 7 +++++++ include/trace/events/target.h | 12 ++++++------ 2 files changed, 13 insertions(+), 6 deletions(-) diff --git a/include/scsi/scsi_common.h b/include/scsi/scsi_common.h index 731ac09ed231..5b567b43e1b1 100644 --- a/include/scsi/scsi_common.h +++ b/include/scsi/scsi_common.h @@ -25,6 +25,13 @@ scsi_command_size(const unsigned char *cmnd) scsi_varlen_cdb_length(cmnd) : COMMAND_SIZE(cmnd[0]); } +static inline unsigned char +scsi_command_control(const unsigned char *cmnd) +{ + return (cmnd[0] == VARIABLE_LENGTH_CMD) ? + cmnd[1] : cmnd[COMMAND_SIZE(cmnd[0]) - 1]; +} + /* Returns a human-readable name for the device */ extern const char *scsi_device_type(unsigned type); diff --git a/include/trace/events/target.h b/include/trace/events/target.h index 77408edd29d2..67fad2677ed5 100644 --- a/include/trace/events/target.h +++ b/include/trace/events/target.h @@ -141,6 +141,7 @@ TRACE_EVENT(target_sequencer_start, __field( unsigned int, opcode ) __field( unsigned int, data_length ) __field( unsigned int, task_attribute ) + __field( unsigned char, control ) __array( unsigned char, cdb, TCM_MAX_COMMAND_SIZE ) __string( initiator, cmd->se_sess->se_node_acl->initiatorname ) ), @@ -151,6 +152,7 @@ TRACE_EVENT(target_sequencer_start, __entry->opcode = cmd->t_task_cdb[0]; __entry->data_length = cmd->data_length; __entry->task_attribute = cmd->sam_task_attr; + __entry->control = scsi_command_control(cmd->t_task_cdb); memcpy(__entry->cdb, cmd->t_task_cdb, TCM_MAX_COMMAND_SIZE); __assign_str(initiator, cmd->se_sess->se_node_acl->initiatorname); ), @@ -160,9 +162,7 @@ TRACE_EVENT(target_sequencer_start, __entry->tag, show_opcode_name(__entry->opcode), __entry->data_length, __print_hex(__entry->cdb, 16), show_task_attribute_name(__entry->task_attribute), - scsi_command_size(__entry->cdb) <= 16 ? - __entry->cdb[scsi_command_size(__entry->cdb) - 1] : - __entry->cdb[1] + __entry->control ) ); @@ -178,6 +178,7 @@ TRACE_EVENT(target_cmd_complete, __field( unsigned int, opcode ) __field( unsigned int, data_length ) __field( unsigned int, task_attribute ) + __field( unsigned char, control ) __field( unsigned char, scsi_status ) __field( unsigned char, sense_length ) __array( unsigned char, cdb, TCM_MAX_COMMAND_SIZE ) @@ -191,6 +192,7 @@ TRACE_EVENT(target_cmd_complete, __entry->opcode = cmd->t_task_cdb[0]; __entry->data_length = cmd->data_length; __entry->task_attribute = cmd->sam_task_attr; + __entry->control = scsi_command_control(cmd->t_task_cdb); __entry->scsi_status = cmd->scsi_status; __entry->sense_length = cmd->scsi_status == SAM_STAT_CHECK_CONDITION ? min(18, ((u8 *) cmd->sense_buffer)[SPC_ADD_SENSE_LEN_OFFSET] + 8) : 0; @@ -208,9 +210,7 @@ TRACE_EVENT(target_cmd_complete, show_opcode_name(__entry->opcode), __entry->data_length, __print_hex(__entry->cdb, 16), show_task_attribute_name(__entry->task_attribute), - scsi_command_size(__entry->cdb) <= 16 ? - __entry->cdb[scsi_command_size(__entry->cdb) - 1] : - __entry->cdb[1] + __entry->control ) ); -- cgit v1.2.3 From 2a242d59d6b908341c0d426bc6e7f8e28871cbd0 Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 1 Oct 2020 10:35:53 -0500 Subject: scsi: core: Add limitless cmd retry support Add infinite retry support to SCSI midlayer by combining common checks for retries into some helper functions, and then checking for the -1/SCSI_CMD_RETRIES_NO_LIMIT. Link: https://lore.kernel.org/r/1601566554-26752-2-git-send-email-michael.christie@oracle.com Reviewed-by: Bart Van Assche Signed-off-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/scsi/scsi_error.c | 33 +++++++++++++++++++++++---------- drivers/scsi/scsi_lib.c | 29 +++++++++++++++++++---------- drivers/scsi/scsi_priv.h | 1 + 3 files changed, 43 insertions(+), 20 deletions(-) diff --git a/drivers/scsi/scsi_error.c b/drivers/scsi/scsi_error.c index 5f3726abed78..ae80daa5d831 100644 --- a/drivers/scsi/scsi_error.c +++ b/drivers/scsi/scsi_error.c @@ -116,6 +116,14 @@ static int scsi_host_eh_past_deadline(struct Scsi_Host *shost) return 1; } +static bool scsi_cmd_retry_allowed(struct scsi_cmnd *cmd) +{ + if (cmd->allowed == SCSI_CMD_RETRIES_NO_LIMIT) + return true; + + return ++cmd->retries <= cmd->allowed; +} + /** * scmd_eh_abort_handler - Handle command aborts * @work: command to be aborted. @@ -151,7 +159,7 @@ scmd_eh_abort_handler(struct work_struct *work) "eh timeout, not retrying " "aborted command\n")); } else if (!scsi_noretry_cmd(scmd) && - (++scmd->retries <= scmd->allowed)) { + scsi_cmd_retry_allowed(scmd)) { SCSI_LOG_ERROR_RECOVERY(3, scmd_printk(KERN_WARNING, scmd, "retry aborted command\n")); @@ -1264,11 +1272,18 @@ int scsi_eh_get_sense(struct list_head *work_q, * upper level. */ if (rtn == SUCCESS) - /* we don't want this command reissued, just - * finished with the sense data, so set - * retries to the max allowed to ensure it - * won't get reissued */ - scmd->retries = scmd->allowed; + /* + * We don't want this command reissued, just finished + * with the sense data, so set retries to the max + * allowed to ensure it won't get reissued. If the user + * has requested infinite retries, we also want to + * finish this command, so force completion by setting + * retries and allowed to the same value. + */ + if (scmd->allowed == SCSI_CMD_RETRIES_NO_LIMIT) + scmd->retries = scmd->allowed = 1; + else + scmd->retries = scmd->allowed; else if (rtn != NEEDS_RETRY) continue; @@ -1944,8 +1959,7 @@ maybe_retry: * the request was not marked fast fail. Note that above, * even if the request is marked fast fail, we still requeue * for queue congestion conditions (QUEUE_FULL or BUSY) */ - if ((++scmd->retries) <= scmd->allowed - && !scsi_noretry_cmd(scmd)) { + if (scsi_cmd_retry_allowed(scmd) && !scsi_noretry_cmd(scmd)) { return NEEDS_RETRY; } else { /* @@ -2091,8 +2105,7 @@ void scsi_eh_flush_done_q(struct list_head *done_q) list_for_each_entry_safe(scmd, next, done_q, eh_entry) { list_del_init(&scmd->eh_entry); if (scsi_device_online(scmd->device) && - !scsi_noretry_cmd(scmd) && - (++scmd->retries <= scmd->allowed)) { + !scsi_noretry_cmd(scmd) && scsi_cmd_retry_allowed(scmd)) { SCSI_LOG_ERROR_RECOVERY(3, scmd_printk(KERN_INFO, scmd, "%s: flush retry cmd\n", diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c index f0ee11dc07e4..4e49469b6c53 100644 --- a/drivers/scsi/scsi_lib.c +++ b/drivers/scsi/scsi_lib.c @@ -669,6 +669,23 @@ static void scsi_io_completion_reprep(struct scsi_cmnd *cmd, scsi_mq_requeue_cmd(cmd); } +static bool scsi_cmd_runtime_exceeced(struct scsi_cmnd *cmd) +{ + struct request *req = cmd->request; + unsigned long wait_for; + + if (cmd->allowed == SCSI_CMD_RETRIES_NO_LIMIT) + return false; + + wait_for = (cmd->allowed + 1) * req->timeout; + if (time_before(cmd->jiffies_at_alloc + wait_for, jiffies)) { + scmd_printk(KERN_ERR, cmd, "timing out command, waited %lus\n", + wait_for/HZ); + return true; + } + return false; +} + /* Helper for scsi_io_completion() when special action required. */ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result) { @@ -677,7 +694,6 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result) int level = 0; enum {ACTION_FAIL, ACTION_REPREP, ACTION_RETRY, ACTION_DELAYED_RETRY} action; - unsigned long wait_for = (cmd->allowed + 1) * req->timeout; struct scsi_sense_hdr sshdr; bool sense_valid; bool sense_current = true; /* false implies "deferred sense" */ @@ -782,8 +798,7 @@ static void scsi_io_completion_action(struct scsi_cmnd *cmd, int result) } else action = ACTION_FAIL; - if (action != ACTION_FAIL && - time_before(cmd->jiffies_at_alloc + wait_for, jiffies)) + if (action != ACTION_FAIL && scsi_cmd_runtime_exceeced(cmd)) action = ACTION_FAIL; switch (action) { @@ -1456,7 +1471,6 @@ static bool scsi_mq_lld_busy(struct request_queue *q) static void scsi_softirq_done(struct request *rq) { struct scsi_cmnd *cmd = blk_mq_rq_to_pdu(rq); - unsigned long wait_for = (cmd->allowed + 1) * rq->timeout; int disposition; INIT_LIST_HEAD(&cmd->eh_entry); @@ -1466,13 +1480,8 @@ static void scsi_softirq_done(struct request *rq) atomic_inc(&cmd->device->ioerr_cnt); disposition = scsi_decide_disposition(cmd); - if (disposition != SUCCESS && - time_before(cmd->jiffies_at_alloc + wait_for, jiffies)) { - scmd_printk(KERN_ERR, cmd, - "timing out command, waited %lus\n", - wait_for/HZ); + if (disposition != SUCCESS && scsi_cmd_runtime_exceeced(cmd)) disposition = SUCCESS; - } scsi_log_completion(cmd, disposition); diff --git a/drivers/scsi/scsi_priv.h b/drivers/scsi/scsi_priv.h index d12ada035961..180636d54982 100644 --- a/drivers/scsi/scsi_priv.h +++ b/drivers/scsi/scsi_priv.h @@ -15,6 +15,7 @@ struct scsi_host_template; struct Scsi_Host; struct scsi_nl_hdr; +#define SCSI_CMD_RETRIES_NO_LIMIT -1 /* * Scsi Error Handler Flags -- cgit v1.2.3 From 0610959fbbca62b534f1f276873fd297f76b164b Mon Sep 17 00:00:00 2001 From: Mike Christie Date: Thu, 1 Oct 2020 10:35:54 -0500 Subject: scsi: sd: Allow user to configure command retries Some iSCSI targets went with the traditional "export N ports" approach and then allowed the initiator to multipath over them. Other targets went the opposite direction and export a single port, and then software on the target side performs load balancing and failover to other targets via an iSCSI specific feature or IP takover. The problem for the 2nd type of config is we quickly run out of our five retries and get I/O errors. In these setups we want to reduce resource use on the initiator side so we only wanted the one session and no dm-multipath. To handle traditional multipath operations like failover we do IP takover on the target side. So we would have an iSCSI target running on node1. Some monitoring software decides it's dead or the node is overloaded so it starts the iSCSI target on node2. The problem is for the failover case where we might have the equivalent of a dm-multipath temporary all paths down, or we just have to try more than 5 nodes before finding a good one. To handle this type of issue allow the user to configure the disk cmd retries from -1 to the current max of 5. -1 means infinite retries and should be used for setups where some other setting is going to control when to fail. For example iSCSI has the replacement/recovery timeout and fc (some users have used FC with NPIV and done something similar as IP takover) has dev_loss_tmo/fast_io_fail which will eventually expire and fail I/O. Link: https://lore.kernel.org/r/1601566554-26752-3-git-send-email-michael.christie@oracle.com Reviewed-by: Bart Van Assche Signed-off-by: Mike Christie Signed-off-by: Martin K. Petersen --- drivers/scsi/sd.c | 101 ++++++++++++++++++++++++++++++++++++++---------------- drivers/scsi/sd.h | 1 + 2 files changed, 72 insertions(+), 30 deletions(-) diff --git a/drivers/scsi/sd.c b/drivers/scsi/sd.c index 95018e650f2d..7aa69888d062 100644 --- a/drivers/scsi/sd.c +++ b/drivers/scsi/sd.c @@ -194,7 +194,7 @@ cache_type_store(struct device *dev, struct device_attribute *attr, } if (scsi_mode_sense(sdp, 0x08, 8, buffer, sizeof(buffer), SD_TIMEOUT, - SD_MAX_RETRIES, &data, NULL)) + sdkp->max_retries, &data, NULL)) return -EINVAL; len = min_t(size_t, sizeof(buffer), data.length - data.header_length - data.block_descriptor_length); @@ -212,7 +212,7 @@ cache_type_store(struct device *dev, struct device_attribute *attr, data.device_specific = 0; if (scsi_mode_select(sdp, 1, sp, 8, buffer_data, len, SD_TIMEOUT, - SD_MAX_RETRIES, &data, &sshdr)) { + sdkp->max_retries, &data, &sshdr)) { if (scsi_sense_valid(&sshdr)) sd_print_sense_hdr(sdkp, &sshdr); return -EINVAL; @@ -543,6 +543,39 @@ zoned_cap_show(struct device *dev, struct device_attribute *attr, char *buf) } static DEVICE_ATTR_RO(zoned_cap); +static ssize_t +max_retries_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t count) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + struct scsi_device *sdev = sdkp->device; + int retries, err; + + err = kstrtoint(buf, 10, &retries); + if (err) + return err; + + if (retries == SCSI_CMD_RETRIES_NO_LIMIT || retries <= SD_MAX_RETRIES) { + sdkp->max_retries = retries; + return count; + } + + sdev_printk(KERN_ERR, sdev, "max_retries must be between -1 and %d\n", + SD_MAX_RETRIES); + return -EINVAL; +} + +static ssize_t +max_retries_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct scsi_disk *sdkp = to_scsi_disk(dev); + + return sprintf(buf, "%d\n", sdkp->max_retries); +} + +static DEVICE_ATTR_RW(max_retries); + static struct attribute *sd_disk_attrs[] = { &dev_attr_cache_type.attr, &dev_attr_FUA.attr, @@ -557,6 +590,7 @@ static struct attribute *sd_disk_attrs[] = { &dev_attr_max_write_same_blocks.attr, &dev_attr_max_medium_access_timeouts.attr, &dev_attr_zoned_cap.attr, + &dev_attr_max_retries.attr, NULL, }; ATTRIBUTE_GROUPS(sd_disk); @@ -665,7 +699,8 @@ static void scsi_disk_put(struct scsi_disk *sdkp) static int sd_sec_submit(void *data, u16 spsp, u8 secp, void *buffer, size_t len, bool send) { - struct scsi_device *sdev = data; + struct scsi_disk *sdkp = data; + struct scsi_device *sdev = sdkp->device; u8 cdb[12] = { 0, }; int ret; @@ -676,7 +711,7 @@ static int sd_sec_submit(void *data, u16 spsp, u8 secp, void *buffer, ret = scsi_execute_req(sdev, cdb, send ? DMA_TO_DEVICE : DMA_FROM_DEVICE, - buffer, len, NULL, SD_TIMEOUT, SD_MAX_RETRIES, NULL); + buffer, len, NULL, SD_TIMEOUT, sdkp->max_retries, NULL); return ret <= 0 ? ret : -EIO; } #endif /* CONFIG_BLK_SED_OPAL */ @@ -839,6 +874,7 @@ static blk_status_t sd_setup_unmap_cmnd(struct scsi_cmnd *cmd) { struct scsi_device *sdp = cmd->device; struct request *rq = cmd->request; + struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq)); u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq)); unsigned int data_len = 24; @@ -862,7 +898,7 @@ static blk_status_t sd_setup_unmap_cmnd(struct scsi_cmnd *cmd) put_unaligned_be64(lba, &buf[8]); put_unaligned_be32(nr_blocks, &buf[16]); - cmd->allowed = SD_MAX_RETRIES; + cmd->allowed = sdkp->max_retries; cmd->transfersize = data_len; rq->timeout = SD_TIMEOUT; @@ -874,6 +910,7 @@ static blk_status_t sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd, { struct scsi_device *sdp = cmd->device; struct request *rq = cmd->request; + struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq)); u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq)); u32 data_len = sdp->sector_size; @@ -893,7 +930,7 @@ static blk_status_t sd_setup_write_same16_cmnd(struct scsi_cmnd *cmd, put_unaligned_be64(lba, &cmd->cmnd[2]); put_unaligned_be32(nr_blocks, &cmd->cmnd[10]); - cmd->allowed = SD_MAX_RETRIES; + cmd->allowed = sdkp->max_retries; cmd->transfersize = data_len; rq->timeout = unmap ? SD_TIMEOUT : SD_WRITE_SAME_TIMEOUT; @@ -905,6 +942,7 @@ static blk_status_t sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd, { struct scsi_device *sdp = cmd->device; struct request *rq = cmd->request; + struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); u64 lba = sectors_to_logical(sdp, blk_rq_pos(rq)); u32 nr_blocks = sectors_to_logical(sdp, blk_rq_sectors(rq)); u32 data_len = sdp->sector_size; @@ -924,7 +962,7 @@ static blk_status_t sd_setup_write_same10_cmnd(struct scsi_cmnd *cmd, put_unaligned_be32(lba, &cmd->cmnd[2]); put_unaligned_be16(nr_blocks, &cmd->cmnd[7]); - cmd->allowed = SD_MAX_RETRIES; + cmd->allowed = sdkp->max_retries; cmd->transfersize = data_len; rq->timeout = unmap ? SD_TIMEOUT : SD_WRITE_SAME_TIMEOUT; @@ -1056,7 +1094,7 @@ static blk_status_t sd_setup_write_same_cmnd(struct scsi_cmnd *cmd) } cmd->transfersize = sdp->sector_size; - cmd->allowed = SD_MAX_RETRIES; + cmd->allowed = sdkp->max_retries; /* * For WRITE SAME the data transferred via the DATA OUT buffer is @@ -1078,6 +1116,7 @@ static blk_status_t sd_setup_write_same_cmnd(struct scsi_cmnd *cmd) static blk_status_t sd_setup_flush_cmnd(struct scsi_cmnd *cmd) { struct request *rq = cmd->request; + struct scsi_disk *sdkp = scsi_disk(rq->rq_disk); /* flush requests don't perform I/O, zero the S/G table */ memset(&cmd->sdb, 0, sizeof(cmd->sdb)); @@ -1085,7 +1124,7 @@ static blk_status_t sd_setup_flush_cmnd(struct scsi_cmnd *cmd) cmd->cmnd[0] = SYNCHRONIZE_CACHE; cmd->cmd_len = 10; cmd->transfersize = 0; - cmd->allowed = SD_MAX_RETRIES; + cmd->allowed = sdkp->max_retries; rq->timeout = rq->q->rq_timeout * SD_FLUSH_TIMEOUT_MULTIPLIER; return BLK_STS_OK; @@ -1262,7 +1301,7 @@ static blk_status_t sd_setup_read_write_cmnd(struct scsi_cmnd *cmd) */ cmd->transfersize = sdp->sector_size; cmd->underflow = nr_blocks << 9; - cmd->allowed = SD_MAX_RETRIES; + cmd->allowed = sdkp->max_retries; cmd->sdb.length = nr_blocks * sdp->sector_size; SCSI_LOG_HLQUEUE(1, @@ -1609,7 +1648,7 @@ static unsigned int sd_check_events(struct gendisk *disk, unsigned int clearing) if (scsi_block_when_processing_errors(sdp)) { struct scsi_sense_hdr sshdr = { 0, }; - retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, SD_MAX_RETRIES, + retval = scsi_test_unit_ready(sdp, SD_TIMEOUT, sdkp->max_retries, &sshdr); /* failed to execute TUR, assume media not present */ @@ -1666,7 +1705,7 @@ static int sd_sync_cache(struct scsi_disk *sdkp, struct scsi_sense_hdr *sshdr) * flush everything. */ res = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, sshdr, - timeout, SD_MAX_RETRIES, 0, RQF_PM, NULL); + timeout, sdkp->max_retries, 0, RQF_PM, NULL); if (res == 0) break; } @@ -1761,7 +1800,8 @@ static char sd_pr_type(enum pr_type type) static int sd_pr_command(struct block_device *bdev, u8 sa, u64 key, u64 sa_key, u8 type, u8 flags) { - struct scsi_device *sdev = scsi_disk(bdev->bd_disk)->device; + struct scsi_disk *sdkp = scsi_disk(bdev->bd_disk); + struct scsi_device *sdev = sdkp->device; struct scsi_sense_hdr sshdr; int result; u8 cmd[16] = { 0, }; @@ -1777,7 +1817,7 @@ static int sd_pr_command(struct block_device *bdev, u8 sa, data[20] = flags; result = scsi_execute_req(sdev, cmd, DMA_TO_DEVICE, &data, sizeof(data), - &sshdr, SD_TIMEOUT, SD_MAX_RETRIES, NULL); + &sshdr, SD_TIMEOUT, sdkp->max_retries, NULL); if (driver_byte(result) == DRIVER_SENSE && scsi_sense_valid(&sshdr)) { @@ -2114,7 +2154,7 @@ sd_spinup_disk(struct scsi_disk *sdkp) the_result = scsi_execute_req(sdkp->device, cmd, DMA_NONE, NULL, 0, &sshdr, SD_TIMEOUT, - SD_MAX_RETRIES, NULL); + sdkp->max_retries, NULL); /* * If the drive has indicated to us that it @@ -2170,7 +2210,7 @@ sd_spinup_disk(struct scsi_disk *sdkp) cmd[4] |= 1 << 4; scsi_execute_req(sdkp->device, cmd, DMA_NONE, NULL, 0, &sshdr, - SD_TIMEOUT, SD_MAX_RETRIES, + SD_TIMEOUT, sdkp->max_retries, NULL); spintime_expire = jiffies + 100 * HZ; spintime = 1; @@ -2312,7 +2352,7 @@ static int read_capacity_16(struct scsi_disk *sdkp, struct scsi_device *sdp, the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE, buffer, RC16_LEN, &sshdr, - SD_TIMEOUT, SD_MAX_RETRIES, NULL); + SD_TIMEOUT, sdkp->max_retries, NULL); if (media_not_present(sdkp, &sshdr)) return -ENODEV; @@ -2397,7 +2437,7 @@ static int read_capacity_10(struct scsi_disk *sdkp, struct scsi_device *sdp, the_result = scsi_execute_req(sdp, cmd, DMA_FROM_DEVICE, buffer, 8, &sshdr, - SD_TIMEOUT, SD_MAX_RETRIES, NULL); + SD_TIMEOUT, sdkp->max_retries, NULL); if (media_not_present(sdkp, &sshdr)) return -ENODEV; @@ -2582,12 +2622,12 @@ sd_print_capacity(struct scsi_disk *sdkp, /* called with buffer of length 512 */ static inline int -sd_do_mode_sense(struct scsi_device *sdp, int dbd, int modepage, +sd_do_mode_sense(struct scsi_disk *sdkp, int dbd, int modepage, unsigned char *buffer, int len, struct scsi_mode_data *data, struct scsi_sense_hdr *sshdr) { - return scsi_mode_sense(sdp, dbd, modepage, buffer, len, - SD_TIMEOUT, SD_MAX_RETRIES, data, + return scsi_mode_sense(sdkp->device, dbd, modepage, buffer, len, + SD_TIMEOUT, sdkp->max_retries, data, sshdr); } @@ -2610,14 +2650,14 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer) } if (sdp->use_192_bytes_for_3f) { - res = sd_do_mode_sense(sdp, 0, 0x3F, buffer, 192, &data, NULL); + res = sd_do_mode_sense(sdkp, 0, 0x3F, buffer, 192, &data, NULL); } else { /* * First attempt: ask for all pages (0x3F), but only 4 bytes. * We have to start carefully: some devices hang if we ask * for more than is available. */ - res = sd_do_mode_sense(sdp, 0, 0x3F, buffer, 4, &data, NULL); + res = sd_do_mode_sense(sdkp, 0, 0x3F, buffer, 4, &data, NULL); /* * Second attempt: ask for page 0 When only page 0 is @@ -2626,13 +2666,13 @@ sd_read_write_protect_flag(struct scsi_disk *sdkp, unsigned char *buffer) * CDB. */ if (!scsi_status_is_good(res)) - res = sd_do_mode_sense(sdp, 0, 0, buffer, 4, &data, NULL); + res = sd_do_mode_sense(sdkp, 0, 0, buffer, 4, &data, NULL); /* * Third attempt: ask 255 bytes, as we did earlier. */ if (!scsi_status_is_good(res)) - res = sd_do_mode_sense(sdp, 0, 0x3F, buffer, 255, + res = sd_do_mode_sense(sdkp, 0, 0x3F, buffer, 255, &data, NULL); } @@ -2694,7 +2734,7 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer) } /* cautiously ask */ - res = sd_do_mode_sense(sdp, dbd, modepage, buffer, first_len, + res = sd_do_mode_sense(sdkp, dbd, modepage, buffer, first_len, &data, &sshdr); if (!scsi_status_is_good(res)) @@ -2726,7 +2766,7 @@ sd_read_cache_type(struct scsi_disk *sdkp, unsigned char *buffer) /* Get the data */ if (len > first_len) - res = sd_do_mode_sense(sdp, dbd, modepage, buffer, len, + res = sd_do_mode_sense(sdkp, dbd, modepage, buffer, len, &data, &sshdr); if (scsi_status_is_good(res)) { @@ -2845,7 +2885,7 @@ static void sd_read_app_tag_own(struct scsi_disk *sdkp, unsigned char *buffer) return; res = scsi_mode_sense(sdp, 1, 0x0a, buffer, 36, SD_TIMEOUT, - SD_MAX_RETRIES, &data, &sshdr); + sdkp->max_retries, &data, &sshdr); if (!scsi_status_is_good(res) || !data.header_length || data.length < 6) { @@ -3362,6 +3402,7 @@ static int sd_probe(struct device *dev) sdkp->driver = &sd_template; sdkp->disk = gd; sdkp->index = index; + sdkp->max_retries = SD_MAX_RETRIES; atomic_set(&sdkp->openers, 0); atomic_set(&sdkp->device->ioerr_cnt, 0); @@ -3429,7 +3470,7 @@ static int sd_probe(struct device *dev) sd_revalidate_disk(gd); if (sdkp->security) { - sdkp->opal_dev = init_opal_dev(sdp, &sd_sec_submit); + sdkp->opal_dev = init_opal_dev(sdkp, &sd_sec_submit); if (sdkp->opal_dev) sd_printk(KERN_NOTICE, sdkp, "supports TCG Opal\n"); } @@ -3544,7 +3585,7 @@ static int sd_start_stop_device(struct scsi_disk *sdkp, int start) return -ENODEV; res = scsi_execute(sdp, cmd, DMA_NONE, NULL, 0, NULL, &sshdr, - SD_TIMEOUT, SD_MAX_RETRIES, 0, RQF_PM, NULL); + SD_TIMEOUT, sdkp->max_retries, 0, RQF_PM, NULL); if (res) { sd_print_result(sdkp, "Start/Stop Unit failed", res); if (driver_byte(res) == DRIVER_SENSE) diff --git a/drivers/scsi/sd.h b/drivers/scsi/sd.h index 4933e7daf17d..73853b904196 100644 --- a/drivers/scsi/sd.h +++ b/drivers/scsi/sd.h @@ -90,6 +90,7 @@ struct scsi_disk { #endif atomic_t openers; sector_t capacity; /* size in logical blocks */ + int max_retries; u32 max_xfer_blocks; u32 opt_xfer_blocks; u32 max_ws_blocks; -- cgit v1.2.3 From 7f5523f6970932e982d3da51ce0208b74c437140 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 30 Sep 2020 10:25:13 +0800 Subject: scsi: qla2xxx: Fix inconsistent format argument type in tcm_qla2xxx.c Fix the following warnings: [drivers/scsi/qla2xxx/tcm_qla2xxx.c:884]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [drivers/scsi/qla2xxx/tcm_qla2xxx.c:885]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [drivers/scsi/qla2xxx/tcm_qla2xxx.c:886]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [drivers/scsi/qla2xxx/tcm_qla2xxx.c:887]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. [drivers/scsi/qla2xxx/tcm_qla2xxx.c:888]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'signed int'. Link: https://lore.kernel.org/r/20200930022515.2862532-2-yebin10@huawei.com Reported-by: Hulk Robot Reviewed-by: Himanshu Madhani Reviewed-by: Nilesh Javali Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/tcm_qla2xxx.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/tcm_qla2xxx.c b/drivers/scsi/qla2xxx/tcm_qla2xxx.c index 44bfe162654a..61017acd3458 100644 --- a/drivers/scsi/qla2xxx/tcm_qla2xxx.c +++ b/drivers/scsi/qla2xxx/tcm_qla2xxx.c @@ -850,7 +850,7 @@ static ssize_t tcm_qla2xxx_tpg_attrib_##name##_show( \ struct tcm_qla2xxx_tpg *tpg = container_of(se_tpg, \ struct tcm_qla2xxx_tpg, se_tpg); \ \ - return sprintf(page, "%u\n", tpg->tpg_attrib.name); \ + return sprintf(page, "%d\n", tpg->tpg_attrib.name); \ } \ \ static ssize_t tcm_qla2xxx_tpg_attrib_##name##_store( \ -- cgit v1.2.3 From 250bd00923c72c846092271a9e51ee373db081b6 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 30 Sep 2020 10:25:14 +0800 Subject: scsi: qla2xxx: Fix inconsistent format argument type in qla_os.c Fix the following warnings: [drivers/scsi/qla2xxx/qla_os.c:4882]: (warning) %ld in format string (no. 2) requires 'long' but the argument type is 'unsigned long'. [drivers/scsi/qla2xxx/qla_os.c:5011]: (warning) %ld in format string (no. 1) requires 'long' but the argument type is 'unsigned long'. Link: https://lore.kernel.org/r/20200930022515.2862532-3-yebin10@huawei.com Reported-by: Hulk Robot Reviewed-by: Himanshu Madhani Reviewed-by: Nilesh Javali Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_os.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index df8e50af2b96..2bb015b58609 100644 --- a/drivers/scsi/qla2xxx/qla_os.c +++ b/drivers/scsi/qla2xxx/qla_os.c @@ -4880,7 +4880,7 @@ struct scsi_qla_host *qla2x00_create_host(struct scsi_host_template *sht, } INIT_DELAYED_WORK(&vha->scan.scan_work, qla_scan_work_fn); - sprintf(vha->host_str, "%s_%ld", QLA2XXX_DRIVER_NAME, vha->host_no); + sprintf(vha->host_str, "%s_%lu", QLA2XXX_DRIVER_NAME, vha->host_no); ql_dbg(ql_dbg_init, vha, 0x0041, "Allocated the host=%p hw=%p vha=%p dev_name=%s", vha->host, vha->hw, vha, @@ -5009,7 +5009,7 @@ qla2x00_uevent_emit(struct scsi_qla_host *vha, u32 code) switch (code) { case QLA_UEVENT_CODE_FW_DUMP: - snprintf(event_string, sizeof(event_string), "FW_DUMP=%ld", + snprintf(event_string, sizeof(event_string), "FW_DUMP=%lu", vha->host_no); break; default: -- cgit v1.2.3 From 72e813d9a1b7a0a6dc6b27b563c389fbdb50cee2 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 30 Sep 2020 10:25:15 +0800 Subject: scsi: qla2xxx: Fix inconsistent format argument type in qla_dbg.c Fix the following warning: [drivers/scsi/qla2xxx/qla_dbg.c:2451]: (warning) %ld in format string (no. 4) requires 'long' but the argument type is 'unsigned long'. Link: https://lore.kernel.org/r/20200930022515.2862532-4-yebin10@huawei.com Reported-by: Hulk Robot Reviewed-by: Himanshu Madhani Reviewed-by: Nilesh Javali Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/qla2xxx/qla_dbg.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/scsi/qla2xxx/qla_dbg.c b/drivers/scsi/qla2xxx/qla_dbg.c index 369040250ab9..898b8d474868 100644 --- a/drivers/scsi/qla2xxx/qla_dbg.c +++ b/drivers/scsi/qla2xxx/qla_dbg.c @@ -2449,7 +2449,7 @@ static void ql_dbg_prefix(char *pbuf, int pbuf_size, const struct pci_dev *pdev = vha->hw->pdev; /* []-:: */ - snprintf(pbuf, pbuf_size, "%s [%s]-%04x:%ld: ", QL_MSGHDR, + snprintf(pbuf, pbuf_size, "%s [%s]-%04x:%lu: ", QL_MSGHDR, dev_name(&(pdev->dev)), msg_id, vha->host_no); } else { /* []-: : */ -- cgit v1.2.3 From 6500251e590657066a227dce897a0392f302af24 Mon Sep 17 00:00:00 2001 From: Pujin Shi Date: Fri, 2 Oct 2020 14:35:38 +0800 Subject: scsi: ufs: Fix missing brace warning for old compilers For older versions of gcc, the array = {0}; will cause warnings: drivers/scsi/ufs/ufshcd-crypto.c: In function 'ufshcd_crypto_keyslot_program': drivers/scsi/ufs/ufshcd-crypto.c:62:8: warning: missing braces around initializer [-Wmissing-braces] union ufs_crypto_cfg_entry cfg = { 0 }; ^ drivers/scsi/ufs/ufshcd-crypto.c:62:8: warning: (near initialization for 'cfg.reg_val') [-Wmissing-braces] drivers/scsi/ufs/ufshcd-crypto.c: In function 'ufshcd_clear_keyslot': drivers/scsi/ufs/ufshcd-crypto.c:103:8: warning: missing braces around initializer [-Wmissing-braces] union ufs_crypto_cfg_entry cfg = { 0 }; ^ 2 warnings generated Link: https://lore.kernel.org/r/20201002063538.1250-1-shipujin.t@gmail.com Fixes: 70297a8ac7a7 ("scsi: ufs: UFS crypto API") Reviewed-by: Eric Biggers Signed-off-by: Pujin Shi Signed-off-by: Martin K. Petersen --- drivers/scsi/ufs/ufshcd-crypto.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ufs/ufshcd-crypto.c b/drivers/scsi/ufs/ufshcd-crypto.c index d2edbd960ebf..07310b12a5dc 100644 --- a/drivers/scsi/ufs/ufshcd-crypto.c +++ b/drivers/scsi/ufs/ufshcd-crypto.c @@ -59,7 +59,7 @@ static int ufshcd_crypto_keyslot_program(struct blk_keyslot_manager *ksm, u8 data_unit_mask = key->crypto_cfg.data_unit_size / 512; int i; int cap_idx = -1; - union ufs_crypto_cfg_entry cfg = { 0 }; + union ufs_crypto_cfg_entry cfg = {}; int err; BUILD_BUG_ON(UFS_CRYPTO_KEY_SIZE_INVALID != 0); @@ -100,7 +100,7 @@ static int ufshcd_clear_keyslot(struct ufs_hba *hba, int slot) * Clear the crypto cfg on the device. Clearing CFGE * might not be sufficient, so just clear the entire cfg. */ - union ufs_crypto_cfg_entry cfg = { 0 }; + union ufs_crypto_cfg_entry cfg = {}; return ufshcd_program_key(hba, &cfg, slot); } -- cgit v1.2.3 From 712582e60f288e7cede8d6fc8769529317e0f3e0 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Fri, 15 May 2020 13:26:47 +0200 Subject: scsi: fnic: Do not call 'scsi_done()' for unhandled commands The fnic drivers assigns an ioreq structure to each command and severs this assignment once scsi_done() has been called and the command has been completed. When traversing commands to terminate outstanding I/O we should not call scsi_done() on commands which do not have a corresponding ioreq structure; these commands have either never entered the driver or have already been completed. [mkp: fixed unused label warning] Link: https://lore.kernel.org/r/20200515112647.49260-1-hare@suse.de Reported-by: kbuild test robot Reviewed-by: Laurence Oberman Acked-by: Satish Kharat Acked-by: Karan Tilak Kumar Signed-off-by: Hannes Reinecke Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_scsi.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c index 03b1805b106c..d1f7b84bbfe8 100644 --- a/drivers/scsi/fnic/fnic_scsi.c +++ b/drivers/scsi/fnic/fnic_scsi.c @@ -1402,7 +1402,7 @@ static void fnic_cleanup_io(struct fnic *fnic, int exclude_id) } if (!io_req) { spin_unlock_irqrestore(io_lock, flags); - goto cleanup_scsi_cmd; + continue; } CMD_SP(sc) = NULL; @@ -1417,7 +1417,6 @@ static void fnic_cleanup_io(struct fnic *fnic, int exclude_id) fnic_release_ioreq_buf(fnic, io_req, sc); mempool_free(io_req, fnic->io_req_pool); -cleanup_scsi_cmd: sc->result = DID_TRANSPORT_DISRUPTED << 16; FNIC_SCSI_DBG(KERN_DEBUG, fnic->lport->host, "%s: tag:0x%x : sc:0x%p duration = %lu DID_TRANSPORT_DISRUPTED\n", -- cgit v1.2.3 From 2a7869d6c9a1f7c95bcb52a1e960bf95c5d464ac Mon Sep 17 00:00:00 2001 From: Jing Xiangfeng Date: Fri, 25 Sep 2020 14:07:54 +0800 Subject: scsi: snic: Remove unnecessary condition ret is always zero or error so the assignment is redundant. Link: https://lore.kernel.org/r/20200925060754.156599-1-jingxiangfeng@huawei.com Acked-by: Karan Tilak Kumar Signed-off-by: Jing Xiangfeng Signed-off-by: Martin K. Petersen --- drivers/scsi/snic/snic_scsi.c | 4 ---- 1 file changed, 4 deletions(-) diff --git a/drivers/scsi/snic/snic_scsi.c b/drivers/scsi/snic/snic_scsi.c index a8a48b106062..6dd0ff188bb4 100644 --- a/drivers/scsi/snic/snic_scsi.c +++ b/drivers/scsi/snic/snic_scsi.c @@ -1387,10 +1387,6 @@ snic_issue_tm_req(struct snic *snic, } ret = snic_queue_itmf_req(snic, tmreq, sc, tmf, req_id); - if (ret) - goto tmreq_err; - - ret = 0; tmreq_err: if (ret) { -- cgit v1.2.3 From 1dfbed19455b84364fdf888c2110670b419661c9 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 30 Sep 2020 10:19:19 +0800 Subject: scsi: fnic: Fix inconsistent format argument type in fnic_debugfs.c Fix the following warnings: [drivers/scsi/fnic/fnic_debugfs.c:123]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'int'. [drivers/scsi/fnic/fnic_debugfs.c:125]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'int'. [drivers/scsi/fnic/fnic_debugfs.c:127]: (warning) %u in format string (no. 1) requires 'unsigned int' but the argument type is 'int'. Link: https://lore.kernel.org/r/20200930021919.2832860-2-yebin10@huawei.com Reported-by: Hulk Robot Acked-by: Karan Tilak Kumar Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/fnic/fnic_debugfs.c | 6 +++--- 1 file changed, 3 insertions(+), 3 deletions(-) diff --git a/drivers/scsi/fnic/fnic_debugfs.c b/drivers/scsi/fnic/fnic_debugfs.c index 13f7d88d6e57..6c049360f136 100644 --- a/drivers/scsi/fnic/fnic_debugfs.c +++ b/drivers/scsi/fnic/fnic_debugfs.c @@ -120,11 +120,11 @@ static ssize_t fnic_trace_ctrl_read(struct file *filp, len = 0; trace_type = (u8 *)filp->private_data; if (*trace_type == fc_trc_flag->fnic_trace) - len = sprintf(buf, "%u\n", fnic_tracing_enabled); + len = sprintf(buf, "%d\n", fnic_tracing_enabled); else if (*trace_type == fc_trc_flag->fc_trace) - len = sprintf(buf, "%u\n", fnic_fc_tracing_enabled); + len = sprintf(buf, "%d\n", fnic_fc_tracing_enabled); else if (*trace_type == fc_trc_flag->fc_clear) - len = sprintf(buf, "%u\n", fnic_fc_trace_cleared); + len = sprintf(buf, "%d\n", fnic_fc_trace_cleared); else pr_err("fnic: Cannot read to any debugfs file\n"); -- cgit v1.2.3 From 61741d8699e1fc764a309ebd20211bb1cb193110 Mon Sep 17 00:00:00 2001 From: John Donnelly Date: Wed, 23 Sep 2020 17:19:20 -0700 Subject: scsi: target: tcmu: Fix warning: 'page' may be used uninitialized Corrects drivers/target/target_core_user.c:688:6: warning: 'page' may be used uninitialized. Link: https://lore.kernel.org/r/20200924001920.43594-1-john.p.donnelly@oracle.com Fixes: 3c58f737231e ("scsi: target: tcmu: Optimize use of flush_dcache_page") Cc: Mike Christie Acked-by: Mike Christie Signed-off-by: John Donnelly Signed-off-by: Martin K. Petersen --- drivers/target/target_core_user.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/target/target_core_user.c b/drivers/target/target_core_user.c index fa001d7ab6e6..4c960b66de8e 100644 --- a/drivers/target/target_core_user.c +++ b/drivers/target/target_core_user.c @@ -699,7 +699,7 @@ static void scatter_data_area(struct tcmu_dev *udev, struct tcmu_cmd *tcmu_cmd, void *from, *to = NULL; size_t copy_bytes, offset; struct scatterlist *sg; - struct page *page; + struct page *page = NULL; for_each_sg(se_cmd->t_data_sg, sg, se_cmd->t_data_nents, i) { int sg_remaining = sg->length; -- cgit v1.2.3 From 7dc71ac8eb0bcaa76d69a3214d62a80b21c73f50 Mon Sep 17 00:00:00 2001 From: Manish Rangankar Date: Thu, 24 Sep 2020 00:03:38 -0700 Subject: scsi: qedi: Add schedule_hw_err_handler callback for fan failure On fan failure event from MFW, bring down active connections and unload the firmware context. Link: https://lore.kernel.org/r/20200924070338.8270-1-mrangankar@marvell.com Signed-off-by: Manish Rangankar Signed-off-by: Martin K. Petersen --- drivers/scsi/qedi/qedi.h | 1 + drivers/scsi/qedi/qedi_main.c | 20 ++++++++++++++++++++ 2 files changed, 21 insertions(+) diff --git a/drivers/scsi/qedi/qedi.h b/drivers/scsi/qedi/qedi.h index 7e59d50f2fab..c342defc3f52 100644 --- a/drivers/scsi/qedi/qedi.h +++ b/drivers/scsi/qedi/qedi.h @@ -339,6 +339,7 @@ struct qedi_ctx { struct workqueue_struct *dpc_wq; struct delayed_work recovery_work; + struct delayed_work board_disable_work; spinlock_t task_idx_lock; /* To protect gbl context */ s32 last_tidx_alloc; diff --git a/drivers/scsi/qedi/qedi_main.c b/drivers/scsi/qedi/qedi_main.c index 642790b2d9be..61fab01d2d52 100644 --- a/drivers/scsi/qedi/qedi_main.c +++ b/drivers/scsi/qedi/qedi_main.c @@ -1132,6 +1132,9 @@ void qedi_schedule_hw_err_handler(void *dev, err_type, qedi->qedi_err_flags); switch (err_type) { + case QED_HW_ERR_FAN_FAIL: + schedule_delayed_work(&qedi->board_disable_work, 0); + break; case QED_HW_ERR_MFW_RESP_FAIL: case QED_HW_ERR_HW_ATTN: case QED_HW_ERR_DMAE_FAIL: @@ -2485,6 +2488,21 @@ static void __qedi_remove(struct pci_dev *pdev, int mode) } } +static void qedi_board_disable_work(struct work_struct *work) +{ + struct qedi_ctx *qedi = + container_of(work, struct qedi_ctx, + board_disable_work.work); + + QEDI_INFO(&qedi->dbg_ctx, QEDI_LOG_INFO, + "Fan failure, Unloading firmware context.\n"); + + if (test_and_set_bit(QEDI_IN_SHUTDOWN, &qedi->flags)) + return; + + __qedi_remove(qedi->pdev, QEDI_MODE_SHUTDOWN); +} + static void qedi_shutdown(struct pci_dev *pdev) { struct qedi_ctx *qedi = pci_get_drvdata(pdev); @@ -2752,6 +2770,8 @@ retry_probe: } INIT_DELAYED_WORK(&qedi->recovery_work, qedi_recovery_handler); + INIT_DELAYED_WORK(&qedi->board_disable_work, + qedi_board_disable_work); /* F/w needs 1st task context memory entry for performance */ set_bit(QEDI_RESERVE_TASK_ID, qedi->task_idx_map); -- cgit v1.2.3 From 66ab2fa3721690d4fc912a4845f46faf0a8e2011 Mon Sep 17 00:00:00 2001 From: Tomas Henzl Date: Sat, 26 Sep 2020 17:00:15 +0200 Subject: scsi: aacraid: Add a missing iounmap call Add a missing resource cleanup in _aac_reset_adapter. Link: https://lore.kernel.org/r/20200926150015.6187-1-thenzl@redhat.com Signed-off-by: Tomas Henzl Signed-off-by: Martin K. Petersen --- drivers/scsi/aacraid/commsup.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/aacraid/commsup.c b/drivers/scsi/aacraid/commsup.c index 7c0710417d37..6cc7dabe5e11 100644 --- a/drivers/scsi/aacraid/commsup.c +++ b/drivers/scsi/aacraid/commsup.c @@ -1551,6 +1551,7 @@ static int _aac_reset_adapter(struct aac_dev *aac, int forced, u8 reset_type) aac_fib_map_free(aac); dma_free_coherent(&aac->pdev->dev, aac->comm_size, aac->comm_addr, aac->comm_phys); + aac_adapter_ioremap(aac, 0); aac->comm_addr = NULL; aac->comm_phys = 0; kfree(aac->queues); -- cgit v1.2.3 From 38b2db564d9ab7797192ef15d7aade30633ceeae Mon Sep 17 00:00:00 2001 From: Dan Carpenter Date: Mon, 28 Sep 2020 12:13:00 +0300 Subject: scsi: be2iscsi: Fix a theoretical leak in beiscsi_create_eqs() The be_fill_queue() function can only fail when "eq_vaddress" is NULL and since it's non-NULL here that means the function call can't fail. But imagine if it could, then in that situation we would want to store the "paddr" so that dma memory can be released. Link: https://lore.kernel.org/r/20200928091300.GD377727@mwanda Fixes: bfead3b2cb46 ("[SCSI] be2iscsi: Adding msix and mcc_rings V3") Signed-off-by: Dan Carpenter Signed-off-by: Martin K. Petersen --- drivers/scsi/be2iscsi/be_main.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/be2iscsi/be_main.c b/drivers/scsi/be2iscsi/be_main.c index 8dc2e0824ad7..0e45f2c14559 100644 --- a/drivers/scsi/be2iscsi/be_main.c +++ b/drivers/scsi/be2iscsi/be_main.c @@ -3020,6 +3020,7 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba, goto create_eq_error; } + mem->dma = paddr; mem->va = eq_vaddress; ret = be_fill_queue(eq, phba->params.num_eq_entries, sizeof(struct be_eq_entry), eq_vaddress); @@ -3029,7 +3030,6 @@ static int beiscsi_create_eqs(struct beiscsi_hba *phba, goto create_eq_error; } - mem->dma = paddr; ret = beiscsi_cmd_eq_create(&phba->ctrl, eq, BEISCSI_EQ_DELAY_DEF); if (ret) { @@ -3086,6 +3086,7 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba, goto create_cq_error; } + mem->dma = paddr; ret = be_fill_queue(cq, phba->params.num_cq_entries, sizeof(struct sol_cqe), cq_vaddress); if (ret) { @@ -3095,7 +3096,6 @@ static int beiscsi_create_cqs(struct beiscsi_hba *phba, goto create_cq_error; } - mem->dma = paddr; ret = beiscsi_cmd_cq_create(&phba->ctrl, cq, eq, false, false, 0); if (ret) { -- cgit v1.2.3 From 962d359c4d3bd4af0783456b360969edf7c4c745 Mon Sep 17 00:00:00 2001 From: Hannes Reinecke Date: Thu, 10 Sep 2020 10:40:59 +0200 Subject: scsi: lpfc: Drop nodelist reference on error in lpfc_gen_req() If we fail to issue the iocb in lpfc_gen_req() we need to drop the nodelist reference. Link: https://lore.kernel.org/r/20200910084059.138507-1-hare@suse.de Signed-off-by: Hannes Reinecke Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_ct.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c index ef2015fad2d5..c201686d3815 100644 --- a/drivers/scsi/lpfc/lpfc_ct.c +++ b/drivers/scsi/lpfc/lpfc_ct.c @@ -387,6 +387,8 @@ lpfc_gen_req(struct lpfc_vport *vport, struct lpfc_dmabuf *bmp, rc = lpfc_sli_issue_iocb(phba, LPFC_ELS_RING, geniocb, 0); if (rc == IOCB_ERROR) { + geniocb->context_un.ndlp = NULL; + lpfc_nlp_put(ndlp); lpfc_sli_release_iocbq(phba, geniocb); return 1; } -- cgit v1.2.3 From 055f15ab2cb4a5cbc4c0a775ef3d0066e0fa9b34 Mon Sep 17 00:00:00 2001 From: Jing Xiangfeng Date: Thu, 10 Sep 2020 20:38:48 +0800 Subject: scsi: mvumi: Fix error return in mvumi_io_attach() Return PTR_ERR() from the error handling case instead of 0. Link: https://lore.kernel.org/r/20200910123848.93649-1-jingxiangfeng@huawei.com Signed-off-by: Jing Xiangfeng Signed-off-by: Martin K. Petersen --- drivers/scsi/mvumi.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/scsi/mvumi.c b/drivers/scsi/mvumi.c index 8906aceda4c4..0354898d7cac 100644 --- a/drivers/scsi/mvumi.c +++ b/drivers/scsi/mvumi.c @@ -2425,6 +2425,7 @@ static int mvumi_io_attach(struct mvumi_hba *mhba) if (IS_ERR(mhba->dm_thread)) { dev_err(&mhba->pdev->dev, "failed to create device scan thread\n"); + ret = PTR_ERR(mhba->dm_thread); mutex_unlock(&mhba->sas_discovery_mutex); goto fail_create_thread; } -- cgit v1.2.3 From 7fc83de599fe411f7c81a63e8059534a0e561656 Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Mon, 14 Sep 2020 14:54:03 +0800 Subject: scsi: jazz_esp: Use module_platform_driver to simplify the code Use module_platform_driver() to eliminate boilerplate code. Link: https://lore.kernel.org/r/20200914065403.3726462-1-liushixin2@huawei.com Signed-off-by: Liu Shixin Signed-off-by: Martin K. Petersen --- drivers/scsi/jazz_esp.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/scsi/jazz_esp.c b/drivers/scsi/jazz_esp.c index 7f683e42c798..f0ed6863cc70 100644 --- a/drivers/scsi/jazz_esp.c +++ b/drivers/scsi/jazz_esp.c @@ -201,21 +201,9 @@ static struct platform_driver esp_jazz_driver = { .name = "jazz_esp", }, }; - -static int __init jazz_esp_init(void) -{ - return platform_driver_register(&esp_jazz_driver); -} - -static void __exit jazz_esp_exit(void) -{ - platform_driver_unregister(&esp_jazz_driver); -} +module_platform_driver(esp_jazz_driver); MODULE_DESCRIPTION("JAZZ ESP SCSI driver"); MODULE_AUTHOR("Thomas Bogendoerfer (tsbogend@alpha.franken.de)"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); - -module_init(jazz_esp_init); -module_exit(jazz_esp_exit); -- cgit v1.2.3 From d30fbf2ce12f12d197dbd8ee647627369d96e712 Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Mon, 14 Sep 2020 14:54:03 +0800 Subject: scsi: mac_esp: Use module_platform_driver to simplify the code Use module_platform_driver() to eliminate boilerplate code. Link: https://lore.kernel.org/r/20200914065403.3726462-1-liushixin2@huawei.com Signed-off-by: Liu Shixin Signed-off-by: Martin K. Petersen --- drivers/scsi/mac_esp.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/scsi/mac_esp.c b/drivers/scsi/mac_esp.c index 1c78bc10c790..6d23ab5aee56 100644 --- a/drivers/scsi/mac_esp.c +++ b/drivers/scsi/mac_esp.c @@ -439,22 +439,10 @@ static struct platform_driver esp_mac_driver = { .name = DRV_MODULE_NAME, }, }; - -static int __init mac_esp_init(void) -{ - return platform_driver_register(&esp_mac_driver); -} - -static void __exit mac_esp_exit(void) -{ - platform_driver_unregister(&esp_mac_driver); -} +module_platform_driver(esp_mac_driver); MODULE_DESCRIPTION("Mac ESP SCSI driver"); MODULE_AUTHOR("Finn Thain"); MODULE_LICENSE("GPL v2"); MODULE_VERSION(DRV_VERSION); MODULE_ALIAS("platform:" DRV_MODULE_NAME); - -module_init(mac_esp_init); -module_exit(mac_esp_exit); -- cgit v1.2.3 From e4c6d2872e25fc101d008235eeace732dd888798 Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Mon, 14 Sep 2020 14:54:03 +0800 Subject: scsi: qlogicpti: Use module_platform_driver to simplify the code Use module_platform_driver() to eliminate boilerplate code. Link: https://lore.kernel.org/r/20200914065403.3726462-1-liushixin2@huawei.com Signed-off-by: Liu Shixin Signed-off-by: Martin K. Petersen --- drivers/scsi/qlogicpti.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/scsi/qlogicpti.c b/drivers/scsi/qlogicpti.c index 3790e8b70bba..465533964bc0 100644 --- a/drivers/scsi/qlogicpti.c +++ b/drivers/scsi/qlogicpti.c @@ -1468,22 +1468,10 @@ static struct platform_driver qpti_sbus_driver = { .probe = qpti_sbus_probe, .remove = qpti_sbus_remove, }; - -static int __init qpti_init(void) -{ - return platform_driver_register(&qpti_sbus_driver); -} - -static void __exit qpti_exit(void) -{ - platform_driver_unregister(&qpti_sbus_driver); -} +module_platform_driver(qpti_sbus_driver); MODULE_DESCRIPTION("QlogicISP SBUS driver"); MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); MODULE_LICENSE("GPL"); MODULE_VERSION("2.1"); MODULE_FIRMWARE("qlogic/isp1000.bin"); - -module_init(qpti_init); -module_exit(qpti_exit); -- cgit v1.2.3 From a3b73c96b4aed11658245c258802941641d8048f Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Mon, 14 Sep 2020 14:54:03 +0800 Subject: scsi: sni_53c710: Use module_platform_driver to simplify the code Use module_platform_driver() to eliminate boilerplate code. Link: https://lore.kernel.org/r/20200914065403.3726462-1-liushixin2@huawei.com Signed-off-by: Liu Shixin Signed-off-by: Martin K. Petersen --- drivers/scsi/sni_53c710.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/scsi/sni_53c710.c b/drivers/scsi/sni_53c710.c index 03d43f016397..9e2e196bc202 100644 --- a/drivers/scsi/sni_53c710.c +++ b/drivers/scsi/sni_53c710.c @@ -124,16 +124,4 @@ static struct platform_driver snirm710_driver = { .name = "snirm_53c710", }, }; - -static int __init snirm710_init(void) -{ - return platform_driver_register(&snirm710_driver); -} - -static void __exit snirm710_exit(void) -{ - platform_driver_unregister(&snirm710_driver); -} - -module_init(snirm710_init); -module_exit(snirm710_exit); +module_platform_driver(snirm710_driver); -- cgit v1.2.3 From 2d00ffe725a955926769c884c7c4a94623ee49c7 Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Mon, 14 Sep 2020 14:54:03 +0800 Subject: scsi: sun3x_esp: Use module_platform_driver to simplify the code Use module_platform_driver() to eliminate boilerplate code. Link: https://lore.kernel.org/r/20200914065403.3726462-1-liushixin2@huawei.com Signed-off-by: Liu Shixin Signed-off-by: Martin K. Petersen --- drivers/scsi/sun3x_esp.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/scsi/sun3x_esp.c b/drivers/scsi/sun3x_esp.c index f37df79e37e1..7de82f2c9757 100644 --- a/drivers/scsi/sun3x_esp.c +++ b/drivers/scsi/sun3x_esp.c @@ -270,22 +270,10 @@ static struct platform_driver esp_sun3x_driver = { .name = "sun3x_esp", }, }; - -static int __init sun3x_esp_init(void) -{ - return platform_driver_register(&esp_sun3x_driver); -} - -static void __exit sun3x_esp_exit(void) -{ - platform_driver_unregister(&esp_sun3x_driver); -} +module_platform_driver(esp_sun3x_driver); MODULE_DESCRIPTION("Sun3x ESP SCSI driver"); MODULE_AUTHOR("Thomas Bogendoerfer (tsbogend@alpha.franken.de)"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); - -module_init(sun3x_esp_init); -module_exit(sun3x_esp_exit); MODULE_ALIAS("platform:sun3x_esp"); -- cgit v1.2.3 From ea0dc2002ef58ff5629fda5275391a8c12bae848 Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Mon, 14 Sep 2020 14:54:03 +0800 Subject: scsi: sun_esp: Use module_platform_driver to simplify the code Use module_platform_driver() to eliminate boilerplate code. Link: https://lore.kernel.org/r/20200914065403.3726462-1-liushixin2@huawei.com Signed-off-by: Liu Shixin Signed-off-by: Martin K. Petersen --- drivers/scsi/sun_esp.c | 14 +------------- 1 file changed, 1 insertion(+), 13 deletions(-) diff --git a/drivers/scsi/sun_esp.c b/drivers/scsi/sun_esp.c index 964130d2c8a6..5dc38d35745b 100644 --- a/drivers/scsi/sun_esp.c +++ b/drivers/scsi/sun_esp.c @@ -606,21 +606,9 @@ static struct platform_driver esp_sbus_driver = { .probe = esp_sbus_probe, .remove = esp_sbus_remove, }; - -static int __init sunesp_init(void) -{ - return platform_driver_register(&esp_sbus_driver); -} - -static void __exit sunesp_exit(void) -{ - platform_driver_unregister(&esp_sbus_driver); -} +module_platform_driver(esp_sbus_driver); MODULE_DESCRIPTION("Sun ESP SCSI driver"); MODULE_AUTHOR("David S. Miller (davem@davemloft.net)"); MODULE_LICENSE("GPL"); MODULE_VERSION(DRV_VERSION); - -module_init(sunesp_init); -module_exit(sunesp_exit); -- cgit v1.2.3 From 121432e87093ca3bdfcd9023df545d01b4bf0dff Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 16 Sep 2020 10:27:49 +0800 Subject: scsi: qla4xxx: Delete unneeded variable 'status' in qla4xxx_process_ddb_changed Fixes coccicheck warning: drivers/scsi/qla4xxx/ql4_init.c:1173:5-11: Unneeded variable: "status". Return "QLA_ERROR" on line 1195 Link: https://lore.kernel.org/r/20200916022749.348923-1-yebin10@huawei.com Reported-by: Hulk Robot Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/qla4xxx/ql4_init.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/qla4xxx/ql4_init.c b/drivers/scsi/qla4xxx/ql4_init.c index 4a7ef971a387..6444f4bb61b3 100644 --- a/drivers/scsi/qla4xxx/ql4_init.c +++ b/drivers/scsi/qla4xxx/ql4_init.c @@ -1170,7 +1170,6 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, uint32_t state, uint32_t conn_err) { struct ddb_entry *ddb_entry; - int status = QLA_ERROR; /* check for out of range index */ if (fw_ddb_index >= MAX_DDB_ENTRIES) @@ -1192,7 +1191,7 @@ int qla4xxx_process_ddb_changed(struct scsi_qla_host *ha, ddb_entry->ddb_change(ha, fw_ddb_index, ddb_entry, state); exit_ddb_event: - return status; + return QLA_ERROR; } /** -- cgit v1.2.3 From 936dc95d09d8f662c63cd82790c94f38ef49e9df Mon Sep 17 00:00:00 2001 From: Liu Shixin Date: Wed, 16 Sep 2020 10:50:30 +0800 Subject: scsi: snic: Convert to use DEFINE_SEQ_ATTRIBUTE macro Use DEFINE_SEQ_ATTRIBUTE macro to simplify the code. Link: https://lore.kernel.org/r/20200916025030.3992991-1-liushixin2@huawei.com Signed-off-by: Liu Shixin Signed-off-by: Martin K. Petersen --- drivers/scsi/snic/snic_debugfs.c | 16 ++-------------- 1 file changed, 2 insertions(+), 14 deletions(-) diff --git a/drivers/scsi/snic/snic_debugfs.c b/drivers/scsi/snic/snic_debugfs.c index 2b349365592f..4471c4c8aafa 100644 --- a/drivers/scsi/snic/snic_debugfs.c +++ b/drivers/scsi/snic/snic_debugfs.c @@ -439,26 +439,14 @@ snic_trc_seq_show(struct seq_file *sfp, void *data) return 0; } -static const struct seq_operations snic_trc_seq_ops = { +static const struct seq_operations snic_trc_sops = { .start = snic_trc_seq_start, .next = snic_trc_seq_next, .stop = snic_trc_seq_stop, .show = snic_trc_seq_show, }; -static int -snic_trc_open(struct inode *inode, struct file *filp) -{ - return seq_open(filp, &snic_trc_seq_ops); -} - -static const struct file_operations snic_trc_fops = { - .owner = THIS_MODULE, - .open = snic_trc_open, - .read = seq_read, - .llseek = seq_lseek, - .release = seq_release, -}; +DEFINE_SEQ_ATTRIBUTE(snic_trc); /* * snic_trc_debugfs_init : creates trace/tracing_enable files for trace -- cgit v1.2.3 From 37fa429ef7bad44e5b8dd9fb0b52731b76a3fa99 Mon Sep 17 00:00:00 2001 From: Ye Bin Date: Wed, 16 Sep 2020 10:28:59 +0800 Subject: scsi: lpfc: Remove unneeded variable 'status' in lpfc_fcp_cpu_map_store() Fixes coccicheck warning: drivers/scsi/lpfc/lpfc_attr.c:5341:5-11: Unneeded variable: "status". Return "- EINVAL" on line 5342 Link: https://lore.kernel.org/r/20200916022859.349089-1-yebin10@huawei.com Reported-by: Hulk Robot Signed-off-by: Ye Bin Signed-off-by: Martin K. Petersen --- drivers/scsi/lpfc/lpfc_attr.c | 3 +-- 1 file changed, 1 insertion(+), 2 deletions(-) diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c index ece6c250ebaf..e94eac194676 100644 --- a/drivers/scsi/lpfc/lpfc_attr.c +++ b/drivers/scsi/lpfc/lpfc_attr.c @@ -5338,8 +5338,7 @@ static ssize_t lpfc_fcp_cpu_map_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { - int status = -EINVAL; - return status; + return -EINVAL; } /* -- cgit v1.2.3 From da7d5d72ae8341c6b48a7e44a615fede9ab5eb90 Mon Sep 17 00:00:00 2001 From: Jing Xiangfeng Date: Thu, 17 Sep 2020 10:19:06 +0800 Subject: scsi: qedf: Remove redundant assignment to variable 'rc' This assignment is meaningless. Remove it. Link: https://lore.kernel.org/r/20200917021906.175933-1-jingxiangfeng@huawei.com Signed-off-by: Jing Xiangfeng Signed-off-by: Martin K. Petersen --- drivers/scsi/qedf/qedf_io.c | 1 - 1 file changed, 1 deletion(-) diff --git a/drivers/scsi/qedf/qedf_io.c b/drivers/scsi/qedf/qedf_io.c index 86c8afb9a4eb..4869ef813dc4 100644 --- a/drivers/scsi/qedf/qedf_io.c +++ b/drivers/scsi/qedf/qedf_io.c @@ -2163,7 +2163,6 @@ int qedf_initiate_cleanup(struct qedf_ioreq *io_req, /* Sanity check qedf_rport before dereferencing any pointers */ if (!test_bit(QEDF_RPORT_SESSION_READY, &fcport->flags)) { QEDF_ERR(NULL, "tgt not offloaded\n"); - rc = 1; return SUCCESS; } -- cgit v1.2.3 From 7f054da7738a66fc70239ee899e74d899bad3834 Mon Sep 17 00:00:00 2001 From: Luo Jiaxing Date: Fri, 2 Oct 2020 22:30:32 +0800 Subject: scsi: hisi_sas: Use hisi_hba->cq_nvecs for calling calling synchronize_irq() A call trace is observed when running function level reset with online CPUs less than 16 and MSI auto-affinity enabled. [16538.348038] Call trace: [16538.348422] pci_irq_vector+0x98/0xc0 [16538.348947] disable_host_v3_hw+0x8c/0x288 [hisi_sas_v3_hw] [16538.349706] hisi_sas_reset_prepare_v3_hw+0x60/0x88 [hisi_sas_v3_hw] [16538.350631] pci_dev_save_and_disable+0x38/0x68 [16538.351290] pci_reset_function+0x44/0x88 [16538.351846] reset_store+0x6c/0xb8 [16538.352429] dev_attr_store+0x44/0x60 [16538.353035] sysfs_kf_write+0x58/0x80 [16538.353558] kernfs_fop_write+0x140/0x230 [16538.354175] __vfs_write+0x48/0x80 [16538.354675] vfs_write+0xb8/0x1d8 [16538.355145] ksys_write+0x74/0xf8 [16538.355615] __arm64_sys_write+0x24/0x30 [16538.356240] el0_svc_common.constprop.4+0x80/0x1f0 [16538.356905] do_el0_svc+0x2c/0x38 [16538.357408] el0_svc+0x14/0x40 [16538.357848] el0_sync_handler+0xbc/0x2ec [16538.358388] el0_sync+0x140/0x180 The reason is that if we use pci_alloc_irq_vectors_affinity() to allocate IRQs, the number of CQ IRQs can only be less than or equal to the number of online CPUs, but we use hisi_hba->queue_count (always 16) to iterate during interrupt_disable_v3_hw(). Use hisi_hba->cq_nvecs to replace hisi_hba->queue_count to avoid synchronize IRQ on a CPU which does not exist. Link: https://lore.kernel.org/r/1601649038-25534-2-git-send-email-john.garry@huawei.com Signed-off-by: Luo Jiaxing Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 87bda037303f..0cc186fcbca8 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2525,10 +2525,11 @@ static void interrupt_disable_v3_hw(struct hisi_hba *hisi_hba) synchronize_irq(pci_irq_vector(pdev, 1)); synchronize_irq(pci_irq_vector(pdev, 2)); synchronize_irq(pci_irq_vector(pdev, 11)); - for (i = 0; i < hisi_hba->queue_count; i++) { + for (i = 0; i < hisi_hba->queue_count; i++) hisi_sas_write32(hisi_hba, OQ0_INT_SRC_MSK + 0x4 * i, 0x1); + + for (i = 0; i < hisi_hba->cq_nvecs; i++) synchronize_irq(pci_irq_vector(pdev, i + 16)); - } hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK1, 0xffffffff); hisi_sas_write32(hisi_hba, ENT_INT_SRC_MSK2, 0xffffffff); -- cgit v1.2.3 From 6c459ea1542b8937779cbeefb2b1cc77a554c29c Mon Sep 17 00:00:00 2001 From: Xiang Chen Date: Fri, 2 Oct 2020 22:30:33 +0800 Subject: scsi: hisi_sas: Switch to new framework to support suspend and resume For v3 hw we will add support for runtime PM which is only supported in new framework. Legacy PM support and new framework are not allowed to be used together. Switch to new framework to support suspend and resume. Link: https://lore.kernel.org/r/1601649038-25534-3-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 15 ++++++++++----- 1 file changed, 10 insertions(+), 5 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 0cc186fcbca8..e73c124355e5 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -3407,8 +3407,9 @@ enum { hip08, }; -static int hisi_sas_v3_suspend(struct pci_dev *pdev, pm_message_t state) +static int suspend_v3_hw(struct device *device) { + struct pci_dev *pdev = to_pci_dev(device); struct sas_ha_struct *sha = pci_get_drvdata(pdev); struct hisi_hba *hisi_hba = sha->lldd_ha; struct device *dev = hisi_hba->dev; @@ -3439,7 +3440,7 @@ static int hisi_sas_v3_suspend(struct pci_dev *pdev, pm_message_t state) hisi_sas_init_mem(hisi_hba); - device_state = pci_choose_state(pdev, state); + device_state = pci_choose_state(pdev, PMSG_SUSPEND); dev_warn(dev, "entering operating state [D%d]\n", device_state); pci_save_state(pdev); @@ -3452,8 +3453,9 @@ static int hisi_sas_v3_suspend(struct pci_dev *pdev, pm_message_t state) return 0; } -static int hisi_sas_v3_resume(struct pci_dev *pdev) +static int resume_v3_hw(struct device *device) { + struct pci_dev *pdev = to_pci_dev(device); struct sas_ha_struct *sha = pci_get_drvdata(pdev); struct hisi_hba *hisi_hba = sha->lldd_ha; struct Scsi_Host *shost = hisi_hba->shost; @@ -3501,14 +3503,17 @@ static const struct pci_error_handlers hisi_sas_err_handler = { .reset_done = hisi_sas_reset_done_v3_hw, }; +static const struct dev_pm_ops hisi_sas_v3_pm_ops = { + SET_SYSTEM_SLEEP_PM_OPS(suspend_v3_hw, resume_v3_hw) +}; + static struct pci_driver sas_v3_pci_driver = { .name = DRV_NAME, .id_table = sas_v3_pci_table, .probe = hisi_sas_v3_probe, .remove = hisi_sas_v3_remove, - .suspend = hisi_sas_v3_suspend, - .resume = hisi_sas_v3_resume, .err_handler = &hisi_sas_err_handler, + .driver.pm = &hisi_sas_v3_pm_ops, }; module_pci_driver(sas_v3_pci_driver); -- cgit v1.2.3 From 65ff4aef7e9bde00871875c5fbc9c6b79df6f5ba Mon Sep 17 00:00:00 2001 From: Xiang Chen Date: Fri, 2 Oct 2020 22:30:34 +0800 Subject: scsi: hisi_sas: Add controller runtime PM support for v3 hw Add controller runtime PM support for v3 hw. Link: https://lore.kernel.org/r/1601649038-25534-4-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas.h | 2 ++ drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 56 ++++++++++++++++++++++++++++++++-- 2 files changed, 56 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas.h b/drivers/scsi/hisi_sas/hisi_sas.h index c617ac8d8315..961842ee8906 100644 --- a/drivers/scsi/hisi_sas/hisi_sas.h +++ b/drivers/scsi/hisi_sas/hisi_sas.h @@ -19,6 +19,7 @@ #include #include #include +#include #include #include #include @@ -32,6 +33,7 @@ #define HISI_SAS_MAX_DEVICES HISI_SAS_MAX_ITCT_ENTRIES #define HISI_SAS_RESET_BIT 0 #define HISI_SAS_REJECT_CMD_BIT 1 +#define HISI_SAS_PM_BIT 2 #define HISI_SAS_MAX_COMMANDS (HISI_SAS_QUEUE_SLOTS) #define HISI_SAS_RESERVED_IPTT 96 #define HISI_SAS_UNRESERVED_IPTT \ diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index e73c124355e5..9b0e2aac75a6 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -3314,6 +3314,17 @@ hisi_sas_v3_probe(struct pci_dev *pdev, const struct pci_device_id *id) scsi_scan_host(shost); + /* + * For the situation that there are ATA disks connected with SAS + * controller, it additionally creates ata_port which will affect the + * child_count of hisi_hba->dev. Even if suspended all the disks, + * ata_port is still and the child_count of hisi_hba->dev is not 0. + * So use pm_suspend_ignore_children() to ignore the effect to + * hisi_hba->dev. + */ + pm_suspend_ignore_children(dev, true); + pm_runtime_put_noidle(&pdev->dev); + return 0; err_out_register_ha: @@ -3353,6 +3364,7 @@ static void hisi_sas_v3_remove(struct pci_dev *pdev) struct hisi_hba *hisi_hba = sha->lldd_ha; struct Scsi_Host *shost = sha->core.shost; + pm_runtime_get_noresume(dev); if (timer_pending(&hisi_hba->timer)) del_timer(&hisi_hba->timer); @@ -3407,7 +3419,7 @@ enum { hip08, }; -static int suspend_v3_hw(struct device *device) +static int _suspend_v3_hw(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); struct sas_ha_struct *sha = pci_get_drvdata(pdev); @@ -3453,7 +3465,7 @@ static int suspend_v3_hw(struct device *device) return 0; } -static int resume_v3_hw(struct device *device) +static int _resume_v3_hw(struct device *device) { struct pci_dev *pdev = to_pci_dev(device); struct sas_ha_struct *sha = pci_get_drvdata(pdev); @@ -3492,6 +3504,34 @@ static int resume_v3_hw(struct device *device) return 0; } +static int suspend_v3_hw(struct device *device) +{ + struct pci_dev *pdev = to_pci_dev(device); + struct sas_ha_struct *sha = pci_get_drvdata(pdev); + struct hisi_hba *hisi_hba = sha->lldd_ha; + int rc; + + set_bit(HISI_SAS_PM_BIT, &hisi_hba->flags); + + rc = _suspend_v3_hw(device); + if (rc) + clear_bit(HISI_SAS_PM_BIT, &hisi_hba->flags); + + return rc; +} + +static int resume_v3_hw(struct device *device) +{ + struct pci_dev *pdev = to_pci_dev(device); + struct sas_ha_struct *sha = pci_get_drvdata(pdev); + struct hisi_hba *hisi_hba = sha->lldd_ha; + int rc = _resume_v3_hw(device); + + clear_bit(HISI_SAS_PM_BIT, &hisi_hba->flags); + + return rc; +} + static const struct pci_device_id sas_v3_pci_table[] = { { PCI_VDEVICE(HUAWEI, 0xa230), hip08 }, {} @@ -3503,8 +3543,20 @@ static const struct pci_error_handlers hisi_sas_err_handler = { .reset_done = hisi_sas_reset_done_v3_hw, }; +static int runtime_suspend_v3_hw(struct device *dev) +{ + return suspend_v3_hw(dev); +} + +static int runtime_resume_v3_hw(struct device *dev) +{ + return resume_v3_hw(dev); +} + static const struct dev_pm_ops hisi_sas_v3_pm_ops = { SET_SYSTEM_SLEEP_PM_OPS(suspend_v3_hw, resume_v3_hw) + SET_RUNTIME_PM_OPS(runtime_suspend_v3_hw, + runtime_resume_v3_hw, NULL) }; static struct pci_driver sas_v3_pci_driver = { -- cgit v1.2.3 From e06596d5000c58f35721f334fe2eee28e3b01a77 Mon Sep 17 00:00:00 2001 From: Xiang Chen Date: Fri, 2 Oct 2020 22:30:35 +0800 Subject: scsi: hisi_sas: Add check for methods _PS0 and _PR0 To support system suspend/resume or runtime suspend/resume, need to use the function pci_set_power_state() to change the power state which requires at least method _PS0 or _PR0 be filled by platform for v3 hw. So check whether the method is supported, if not, print a warning. A Kconfig dependency is added as there is no stub for acpi_device_power_manageable(). Link: https://lore.kernel.org/r/1601649038-25534-5-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/Kconfig | 1 + drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 4 ++++ 2 files changed, 5 insertions(+) diff --git a/drivers/scsi/hisi_sas/Kconfig b/drivers/scsi/hisi_sas/Kconfig index 13ed9073fc72..b8148b1733f8 100644 --- a/drivers/scsi/hisi_sas/Kconfig +++ b/drivers/scsi/hisi_sas/Kconfig @@ -15,5 +15,6 @@ config SCSI_HISI_SAS_PCI tristate "HiSilicon SAS on PCI bus" depends on SCSI_HISI_SAS depends on PCI + depends on ACPI help This driver supports HiSilicon's SAS HBA based on PCI device diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index 9b0e2aac75a6..da2c42999c80 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -903,6 +903,7 @@ static int reset_hw_v3_hw(struct hisi_hba *hisi_hba) static int hw_init_v3_hw(struct hisi_hba *hisi_hba) { struct device *dev = hisi_hba->dev; + struct acpi_device *acpi_dev; union acpi_object *obj; guid_t guid; int rc; @@ -933,6 +934,9 @@ static int hw_init_v3_hw(struct hisi_hba *hisi_hba) else ACPI_FREE(obj); + acpi_dev = ACPI_COMPANION(dev); + if (!acpi_device_power_manageable(acpi_dev)) + dev_notice(dev, "neither _PS0 nor _PR0 is defined\n"); return 0; } -- cgit v1.2.3 From 16fd4a7c5917097e9a3da03b39a92381eee40724 Mon Sep 17 00:00:00 2001 From: Xiang Chen Date: Fri, 2 Oct 2020 22:30:36 +0800 Subject: scsi: hisi_sas: Add device link between SCSI devices and hisi_hba Runtime PM of SCSI devices is already supported in SCSI layer, we can suspend/resume every SCSI device separately. But if there is no link between hisi_hba and SCSI devices or SCSI targets it will cause issues if the controller is suspended while SCSI devices are still resuming. Only when all the SCSI devices under the controller are suspended, the controller can be suspended. Add the device link between SCSI devices and the controller. Link: https://lore.kernel.org/r/1601649038-25534-6-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_v3_hw.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c index da2c42999c80..dfabfb4f7ef3 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c +++ b/drivers/scsi/hisi_sas/hisi_sas_v3_hw.c @@ -2758,6 +2758,33 @@ static ssize_t intr_coal_count_v3_hw_store(struct device *dev, } static DEVICE_ATTR_RW(intr_coal_count_v3_hw); +static int slave_configure_v3_hw(struct scsi_device *sdev) +{ + struct Scsi_Host *shost = dev_to_shost(&sdev->sdev_gendev); + struct domain_device *ddev = sdev_to_domain_dev(sdev); + struct hisi_hba *hisi_hba = shost_priv(shost); + struct device *dev = hisi_hba->dev; + int ret = sas_slave_configure(sdev); + + if (ret) + return ret; + if (!dev_is_sata(ddev)) + sas_change_queue_depth(sdev, 64); + + if (sdev->type == TYPE_ENCLOSURE) + return 0; + + if (!device_link_add(&sdev->sdev_gendev, dev, + DL_FLAG_PM_RUNTIME | DL_FLAG_RPM_ACTIVE)) { + if (pm_runtime_enabled(dev)) { + dev_info(dev, "add device link failed, disable runtime PM for the host\n"); + pm_runtime_disable(dev); + } + } + + return 0; +} + static struct device_attribute *host_attrs_v3_hw[] = { &dev_attr_phy_event_threshold, &dev_attr_intr_conv_v3_hw, @@ -3114,7 +3141,7 @@ static struct scsi_host_template sht_v3_hw = { .queuecommand = sas_queuecommand, .dma_need_drain = ata_scsi_dma_need_drain, .target_alloc = sas_target_alloc, - .slave_configure = hisi_sas_slave_configure, + .slave_configure = slave_configure_v3_hw, .scan_finished = hisi_sas_scan_finished, .scan_start = hisi_sas_scan_start, .change_queue_depth = sas_change_queue_depth, -- cgit v1.2.3 From b14a37e011d829404c29a5ae17849d7efb034893 Mon Sep 17 00:00:00 2001 From: Xiang Chen Date: Fri, 2 Oct 2020 22:30:37 +0800 Subject: scsi: hisi_sas: Filter out new PHY up events during suspend Currently sas_resume_ha() is called while resuming the controller to wait for all suspended PHYs to come up and all the libsas events to be completed. There is a scenario which will cause task hung: For direct attach with two disks connected with two PHYs, disable phy0 before suspending the disk on phy1 and the controller, then enable phy0 and resume the controller, and task hung occurs as follows: [ 591.901463] hisi_sas_v3_hw 0000:b4:02.0: resuming from operating state [D0] [ 593.113525] hisi_sas_v3_hw 0000:b4:02.0: neither _PS0 nor _PR0 is defined [ 593.120301] hisi_sas_v3_hw 0000:b4:02.0: waiting up to 25 seconds for 1 phy to resume [ 593.120836] hisi_sas_v3_hw 0000:b4:02.0: phyup: phy0 link_rate=10(sata) [ 593.134680] hisi_sas_v3_hw 0000:b4:02.0: phyup: phy1 link_rate=10(sata) [ 593.134733] sas: phy-2:0 added to port-2:0, phy_mask:0x1 (5000000000000200) [ 593.148350] sas: DOING DISCOVERY on port 0, pid:948 [ 593.153227] hisi_sas_v3_hw 0000:b4:02.0: dev[3:5] found [ 593.159840] sas: Enter sas_scsi_recover_host busy: 0 failed: 0 [ 593.165663] sas: ata7: end_device-2:0: dev error handler [ 593.165730] sas: ata2: end_device-2:1: dev error handler [ 593.172532] hisi_sas_v3_hw 0000:b4:02.0: phydown: phy0 phy_state=0x2 [ 593.182570] hisi_sas_v3_hw 0000:b4:02.0: ignore flutter phy0 down [ 593.331277] hisi_sas_v3_hw 0000:b4:02.0: phyup: phy0 link_rate=10(sata) [ 593.498956] ata7.00: ATA-11: SAMSUNG MZ7LH960HAJR-00005, HXT7404Q, max UDMA/133 [ 593.506235] ata7.00: 1875385008 sectors, multi 16: LBA48 NCQ (depth 32) [ 593.514295] ata7.00: configured for UDMA/133 [ 593.518557] sas: --- Exit sas_scsi_recover_host: busy: 0 failed: 0 tries: 1 [ 593.528613] sas: ata7: end_device-2:0: model:SAMSUNG MZ7LH960HAJR-00005 serial:S45NNA0M712225 [ 593.537520] device_link_add 316: dev=2:0:2:0 supplier:2 consumer:0 [ 593.543674] device_link_add 324 [ 593.546801] device_link_add 352 [ 593.549930] device_link_add 406 [ 593.553058] device_link_add 440: dev=2:0:2:0 supplier:2 consumer:0 [ 593.559208] device_link_add 444 [ 593.562335] device_link_add 455 [ 593.565517] scsi 2:0:2:0: Direct-Access ATA SAMSUNG MZ7LH960 404Q PQ: 0 ANSI: 5 [ 620.057464] phy-2:1: resume timeout [ 738.841445] INFO: task kworker/u256:0:8 blocked for more than 120 seconds. [ 738.848295] Not tainted 5.8.0-rc1-76154-g0d52b59-dirty #744 [ 738.854361] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 738.862155] kworker/u256:0 D 0 8 2 0x00000028 [ 738.867626] Workqueue: 0000:b4:02.0_event_q sas_port_event_worker [ 738.873693] Call trace: [ 738.876133] __switch_to+0xf4/0x148 [ 738.879613] __schedule+0x270/0x5d8 [ 738.883091] schedule+0x78/0x110 [ 738.886307] schedule_timeout+0x1ac/0x280 [ 738.890299] wait_for_completion+0x94/0x138 [ 738.894472] flush_workqueue+0x114/0x438 [ 738.898377] sas_porte_bytes_dmaed+0x400/0x500 [ 738.902801] sas_port_event_worker+0x28/0x40 [ 738.907053] process_one_work+0x1e8/0x360 [ 738.911046] worker_thread+0x44/0x478 [ 738.914698] kthread+0x150/0x158 [ 738.917915] ret_from_fork+0x10/0x1c [ 738.921534] INFO: task kworker/u256:1:948 blocked for more than 120 seconds. [ 738.928550] Not tainted 5.8.0-rc1-76154-g0d52b59-dirty #744 [ 738.934614] "echo 0 > /proc/sys/kernel/hung_task_timeout_secs" disables this message. [ 738.942408] kworker/u256:1 D 0 948 2 0x00000028 [ 738.947873] Workqueue: 0000:b4:02.0_disco_q sas_discover_domain [ 738.953766] Call trace: [ 738.956203] __switch_to+0xf4/0x148 [ 738.959678] __schedule+0x270/0x5d8 [ 738.963152] schedule+0x78/0x110 [ 738.966368] rpm_resume+0xcc/0x550 [ 738.969757] __pm_runtime_resume+0x3c/0x88 [ 738.973836] rpm_get_suppliers+0x50/0x148 [ 738.977829] __pm_runtime_set_status+0x124/0x2f0 [ 738.982427] scsi_sysfs_add_sdev+0x1a0/0x2a8 [ 738.986679] scsi_probe_and_add_lun+0x888/0xab0 [ 738.991190] __scsi_scan_target+0xec/0x520 [ 738.995268] scsi_scan_target+0x11c/0x128 [ 738.999261] sas_rphy_add+0x15c/0x1e8 [ 739.002907] sas_probe_devices+0xe4/0x150 [ 739.006899] sas_discover_domain+0x33c/0x588 [ 739.011150] process_one_work+0x1e8/0x360 [ 739.015143] worker_thread+0x44/0x478 [ 739.018789] kthread+0x150/0x158 [ 739.022003] ret_from_fork+0x10/0x1c ... If an extra phy0 up happens during resume of the SAS controller, it will emit a new libsas event (event PORTE_BYTES_DMAED and event DISCE_DISCOVER_DOMAIN). We will call function scsi_sysfs_add_sdev() in event DISCE_DISCOVER_DOMAIN, which will call __pm_runtime_set_status() to resume supplier (host controller). For runtime PM core, if device is in the resuming state, the later resume request of the device will wait for previous resume request to complete synchronously. At that point in time the state of the controller is still resuming as it waits for all libsas events to be completed, while libsas event DISCE_DISCOVER_DOMAIN is blocked as the state of the controller is resuming which causes a deadlock. To avoid the issue, filter out new PHY up events while the controller is suspended. Link: https://lore.kernel.org/r/1601649038-25534-7-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_main.c | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index f18452942508..ef3922ad70c0 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -619,6 +619,12 @@ static void hisi_sas_bytes_dmaed(struct hisi_hba *hisi_hba, int phy_no) if (!phy->phy_attached) return; + if (test_bit(HISI_SAS_PM_BIT, &hisi_hba->flags) && + !sas_phy->suspended) { + dev_warn(hisi_hba->dev, "phy%d during suspend filtered out\n", phy_no); + return; + } + sas_ha = &hisi_hba->sha; sas_ha->notify_phy_event(sas_phy, PHYE_OOB_DONE); -- cgit v1.2.3 From 69f4ec1edb136d2d2511d1ef96f94ef0aeecefdf Mon Sep 17 00:00:00 2001 From: Xiang Chen Date: Fri, 2 Oct 2020 22:30:38 +0800 Subject: scsi: hisi_sas: Recover PHY state according to the status before reset Currently the PHY state is set according to the state of the PHYs after reset. This is invalid as the PHYs are already re-initialized. Set PHY state according to the state before the reset instead of after. Link: https://lore.kernel.org/r/1601649038-25534-8-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen Signed-off-by: John Garry Signed-off-by: Martin K. Petersen --- drivers/scsi/hisi_sas/hisi_sas_main.c | 4 +--- 1 file changed, 1 insertion(+), 3 deletions(-) diff --git a/drivers/scsi/hisi_sas/hisi_sas_main.c b/drivers/scsi/hisi_sas/hisi_sas_main.c index ef3922ad70c0..5b7357a5620d 100644 --- a/drivers/scsi/hisi_sas/hisi_sas_main.c +++ b/drivers/scsi/hisi_sas/hisi_sas_main.c @@ -1551,7 +1551,6 @@ EXPORT_SYMBOL_GPL(hisi_sas_controller_reset_prepare); void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba) { struct Scsi_Host *shost = hisi_hba->shost; - u32 state; /* Init and wait for PHYs to come up and all libsas event finished. */ hisi_hba->hw->phys_init(hisi_hba); @@ -1566,8 +1565,7 @@ void hisi_sas_controller_reset_done(struct hisi_hba *hisi_hba) scsi_unblock_requests(shost); clear_bit(HISI_SAS_RESET_BIT, &hisi_hba->flags); - state = hisi_hba->hw->get_phys_state(hisi_hba); - hisi_sas_rescan_topology(hisi_hba, state); + hisi_sas_rescan_topology(hisi_hba, hisi_hba->phy_state); } EXPORT_SYMBOL_GPL(hisi_sas_controller_reset_done); -- cgit v1.2.3