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path: root/drivers/message/fusion/mptbase.c
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Diffstat (limited to 'drivers/message/fusion/mptbase.c')
-rw-r--r--drivers/message/fusion/mptbase.c100
1 files changed, 93 insertions, 7 deletions
diff --git a/drivers/message/fusion/mptbase.c b/drivers/message/fusion/mptbase.c
index db3c892f87fb..a75811014a04 100644
--- a/drivers/message/fusion/mptbase.c
+++ b/drivers/message/fusion/mptbase.c
@@ -5,7 +5,7 @@
* For use with LSI PCI chip/adapter(s)
* running LSI Fusion MPT (Message Passing Technology) firmware.
*
- * Copyright (c) 1999-2007 LSI Corporation
+ * Copyright (c) 1999-2008 LSI Corporation
* (mailto:DL-MPTFusionLinux@lsi.com)
*
*/
@@ -103,7 +103,7 @@ static int mfcounter = 0;
* Public data...
*/
-struct proc_dir_entry *mpt_proc_root_dir;
+static struct proc_dir_entry *mpt_proc_root_dir;
#define WHOINIT_UNKNOWN 0xAA
@@ -253,6 +253,55 @@ mpt_get_cb_idx(MPT_DRIVER_CLASS dclass)
return 0;
}
+/**
+ * mpt_fault_reset_work - work performed on workq after ioc fault
+ * @work: input argument, used to derive ioc
+ *
+**/
+static void
+mpt_fault_reset_work(struct work_struct *work)
+{
+ MPT_ADAPTER *ioc =
+ container_of(work, MPT_ADAPTER, fault_reset_work.work);
+ u32 ioc_raw_state;
+ int rc;
+ unsigned long flags;
+
+ if (ioc->diagPending || !ioc->active)
+ goto out;
+
+ ioc_raw_state = mpt_GetIocState(ioc, 0);
+ if ((ioc_raw_state & MPI_IOC_STATE_MASK) == MPI_IOC_STATE_FAULT) {
+ printk(MYIOC_s_WARN_FMT "IOC is in FAULT state (%04xh)!!!\n",
+ ioc->name, ioc_raw_state & MPI_DOORBELL_DATA_MASK);
+ printk(MYIOC_s_WARN_FMT "Issuing HardReset from %s!!\n",
+ ioc->name, __FUNCTION__);
+ rc = mpt_HardResetHandler(ioc, CAN_SLEEP);
+ printk(MYIOC_s_WARN_FMT "%s: HardReset: %s\n", ioc->name,
+ __FUNCTION__, (rc == 0) ? "success" : "failed");
+ ioc_raw_state = mpt_GetIocState(ioc, 0);
+ if ((ioc_raw_state & MPI_IOC_STATE_MASK) == MPI_IOC_STATE_FAULT)
+ printk(MYIOC_s_WARN_FMT "IOC is in FAULT state after "
+ "reset (%04xh)\n", ioc->name, ioc_raw_state &
+ MPI_DOORBELL_DATA_MASK);
+ }
+
+ out:
+ /*
+ * Take turns polling alternate controller
+ */
+ if (ioc->alt_ioc)
+ ioc = ioc->alt_ioc;
+
+ /* rearm the timer */
+ spin_lock_irqsave(&ioc->fault_reset_work_lock, flags);
+ if (ioc->reset_work_q)
+ queue_delayed_work(ioc->reset_work_q, &ioc->fault_reset_work,
+ msecs_to_jiffies(MPT_POLLING_INTERVAL));
+ spin_unlock_irqrestore(&ioc->fault_reset_work_lock, flags);
+}
+
+
/*
* Process turbo (context) reply...
*/
@@ -1616,6 +1665,22 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
/* Find lookup slot. */
INIT_LIST_HEAD(&ioc->list);
+
+ /* Initialize workqueue */
+ INIT_DELAYED_WORK(&ioc->fault_reset_work, mpt_fault_reset_work);
+ spin_lock_init(&ioc->fault_reset_work_lock);
+
+ snprintf(ioc->reset_work_q_name, sizeof(ioc->reset_work_q_name), "mpt_poll_%d", ioc->id);
+ ioc->reset_work_q =
+ create_singlethread_workqueue(ioc->reset_work_q_name);
+ if (!ioc->reset_work_q) {
+ printk(MYIOC_s_ERR_FMT "Insufficient memory to add adapter!\n",
+ ioc->name);
+ pci_release_selected_regions(pdev, ioc->bars);
+ kfree(ioc);
+ return -ENOMEM;
+ }
+
dinitprintk(ioc, printk(MYIOC_s_INFO_FMT "facts @ %p, pfacts[0] @ %p\n",
ioc->name, &ioc->facts, &ioc->pfacts[0]));
@@ -1722,6 +1787,10 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
iounmap(ioc->memmap);
if (r != -5)
pci_release_selected_regions(pdev, ioc->bars);
+
+ destroy_workqueue(ioc->reset_work_q);
+ ioc->reset_work_q = NULL;
+
kfree(ioc);
pci_set_drvdata(pdev, NULL);
return r;
@@ -1754,6 +1823,10 @@ mpt_attach(struct pci_dev *pdev, const struct pci_device_id *id)
}
#endif
+ if (!ioc->alt_ioc)
+ queue_delayed_work(ioc->reset_work_q, &ioc->fault_reset_work,
+ msecs_to_jiffies(MPT_POLLING_INTERVAL));
+
return 0;
}
@@ -1769,6 +1842,19 @@ mpt_detach(struct pci_dev *pdev)
MPT_ADAPTER *ioc = pci_get_drvdata(pdev);
char pname[32];
u8 cb_idx;
+ unsigned long flags;
+ struct workqueue_struct *wq;
+
+ /*
+ * Stop polling ioc for fault condition
+ */
+ spin_lock_irqsave(&ioc->fault_reset_work_lock, flags);
+ wq = ioc->reset_work_q;
+ ioc->reset_work_q = NULL;
+ spin_unlock_irqrestore(&ioc->fault_reset_work_lock, flags);
+ cancel_delayed_work(&ioc->fault_reset_work);
+ destroy_workqueue(wq);
+
sprintf(pname, MPT_PROCFS_MPTBASEDIR "/%s/summary", ioc->name);
remove_proc_entry(pname, NULL);
@@ -2062,7 +2148,8 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
if ((ret == 0) && (reason == MPT_HOSTEVENT_IOC_BRINGUP)) {
ioc->pci_irq = -1;
if (ioc->pcidev->irq) {
- if (ioc->msi_enable && !pci_enable_msi(ioc->pcidev))
+ if (ioc->msi_enable == 1 &&
+ !pci_enable_msi(ioc->pcidev))
printk(MYIOC_s_INFO_FMT "PCI-MSI enabled\n",
ioc->name);
else
@@ -2072,7 +2159,7 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
if (rc < 0) {
printk(MYIOC_s_ERR_FMT "Unable to allocate "
"interrupt %d!\n", ioc->name, ioc->pcidev->irq);
- if (ioc->msi_enable)
+ if (ioc->msi_enable == 1)
pci_disable_msi(ioc->pcidev);
return -EBUSY;
}
@@ -2268,7 +2355,7 @@ mpt_do_ioc_recovery(MPT_ADAPTER *ioc, u32 reason, int sleepFlag)
out:
if ((ret != 0) && irq_allocated) {
free_irq(ioc->pci_irq, ioc);
- if (ioc->msi_enable)
+ if (ioc->msi_enable == 1)
pci_disable_msi(ioc->pcidev);
}
return ret;
@@ -2450,7 +2537,7 @@ mpt_adapter_dispose(MPT_ADAPTER *ioc)
if (ioc->pci_irq != -1) {
free_irq(ioc->pci_irq, ioc);
- if (ioc->msi_enable)
+ if (ioc->msi_enable == 1)
pci_disable_msi(ioc->pcidev);
ioc->pci_irq = -1;
}
@@ -7451,7 +7538,6 @@ EXPORT_SYMBOL(mpt_resume);
EXPORT_SYMBOL(mpt_suspend);
#endif
EXPORT_SYMBOL(ioc_list);
-EXPORT_SYMBOL(mpt_proc_root_dir);
EXPORT_SYMBOL(mpt_register);
EXPORT_SYMBOL(mpt_deregister);
EXPORT_SYMBOL(mpt_event_register);
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-16 05:24:16 +0000