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path: root/drivers/ata/ahci.c
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Diffstat (limited to 'drivers/ata/ahci.c')
-rw-r--r--drivers/ata/ahci.c177
1 files changed, 35 insertions, 142 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 5429f23fcb79..2e475dede0d0 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -62,7 +62,6 @@ enum {
AHCI_MAX_PORTS = 32,
AHCI_MAX_SG = 168, /* hardware max is 64K */
AHCI_DMA_BOUNDARY = 0xffffffff,
- AHCI_USE_CLUSTERING = 1,
AHCI_MAX_CMDS = 32,
AHCI_CMD_SZ = 32,
AHCI_CMD_SLOT_SZ = AHCI_MAX_CMDS * AHCI_CMD_SZ,
@@ -198,7 +197,6 @@ enum {
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA |
ATA_FLAG_ACPI_SATA | ATA_FLAG_AN |
ATA_FLAG_IPM,
- AHCI_LFLAG_COMMON = ATA_LFLAG_SKIP_D2H_BSY,
ICH_MAP = 0x90, /* ICH MAP register */
};
@@ -245,7 +243,6 @@ static int ahci_scr_read(struct ata_port *ap, unsigned int sc_reg, u32 *val);
static int ahci_scr_write(struct ata_port *ap, unsigned int sc_reg, u32 val);
static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent);
static unsigned int ahci_qc_issue(struct ata_queued_cmd *qc);
-static void ahci_irq_clear(struct ata_port *ap);
static int ahci_port_start(struct ata_port *ap);
static void ahci_port_stop(struct ata_port *ap);
static void ahci_tf_read(struct ata_port *ap, struct ata_taskfile *tf);
@@ -255,9 +252,18 @@ static void ahci_freeze(struct ata_port *ap);
static void ahci_thaw(struct ata_port *ap);
static void ahci_pmp_attach(struct ata_port *ap);
static void ahci_pmp_detach(struct ata_port *ap);
+static int ahci_softreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline);
+static int ahci_hardreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline);
+static int ahci_vt8251_hardreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline);
+static int ahci_p5wdh_hardreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline);
+static void ahci_postreset(struct ata_link *link, unsigned int *class);
+static int ahci_pmp_softreset(struct ata_link *link, unsigned int *class,
+ unsigned long deadline);
static void ahci_error_handler(struct ata_port *ap);
-static void ahci_vt8251_error_handler(struct ata_port *ap);
-static void ahci_p5wdh_error_handler(struct ata_port *ap);
static void ahci_post_internal_cmd(struct ata_queued_cmd *qc);
static int ahci_port_resume(struct ata_port *ap);
static void ahci_dev_config(struct ata_device *dev);
@@ -276,129 +282,57 @@ static struct device_attribute *ahci_shost_attrs[] = {
};
static struct scsi_host_template ahci_sht = {
- .module = THIS_MODULE,
- .name = DRV_NAME,
- .ioctl = ata_scsi_ioctl,
- .queuecommand = ata_scsi_queuecmd,
- .change_queue_depth = ata_scsi_change_queue_depth,
+ ATA_NCQ_SHT(DRV_NAME),
.can_queue = AHCI_MAX_CMDS - 1,
- .this_id = ATA_SHT_THIS_ID,
.sg_tablesize = AHCI_MAX_SG,
- .cmd_per_lun = ATA_SHT_CMD_PER_LUN,
- .emulated = ATA_SHT_EMULATED,
- .use_clustering = AHCI_USE_CLUSTERING,
- .proc_name = DRV_NAME,
.dma_boundary = AHCI_DMA_BOUNDARY,
- .slave_configure = ata_scsi_slave_config,
- .slave_destroy = ata_scsi_slave_destroy,
- .bios_param = ata_std_bios_param,
.shost_attrs = ahci_shost_attrs,
};
-static const struct ata_port_operations ahci_ops = {
+static struct ata_port_operations ahci_ops = {
+ .inherits = &sata_pmp_port_ops,
+
.check_status = ahci_check_status,
.check_altstatus = ahci_check_status,
- .dev_select = ata_noop_dev_select,
-
- .dev_config = ahci_dev_config,
.tf_read = ahci_tf_read,
-
.qc_defer = sata_pmp_qc_defer_cmd_switch,
.qc_prep = ahci_qc_prep,
.qc_issue = ahci_qc_issue,
- .irq_clear = ahci_irq_clear,
-
- .scr_read = ahci_scr_read,
- .scr_write = ahci_scr_write,
-
.freeze = ahci_freeze,
.thaw = ahci_thaw,
-
+ .softreset = ahci_softreset,
+ .hardreset = ahci_hardreset,
+ .postreset = ahci_postreset,
+ .pmp_softreset = ahci_pmp_softreset,
.error_handler = ahci_error_handler,
.post_internal_cmd = ahci_post_internal_cmd,
-
- .pmp_attach = ahci_pmp_attach,
- .pmp_detach = ahci_pmp_detach,
-
-#ifdef CONFIG_PM
- .port_suspend = ahci_port_suspend,
- .port_resume = ahci_port_resume,
-#endif
- .enable_pm = ahci_enable_alpm,
- .disable_pm = ahci_disable_alpm,
-
- .port_start = ahci_port_start,
- .port_stop = ahci_port_stop,
-};
-
-static const struct ata_port_operations ahci_vt8251_ops = {
- .check_status = ahci_check_status,
- .check_altstatus = ahci_check_status,
- .dev_select = ata_noop_dev_select,
-
- .tf_read = ahci_tf_read,
-
- .qc_defer = sata_pmp_qc_defer_cmd_switch,
- .qc_prep = ahci_qc_prep,
- .qc_issue = ahci_qc_issue,
-
- .irq_clear = ahci_irq_clear,
+ .dev_config = ahci_dev_config,
.scr_read = ahci_scr_read,
.scr_write = ahci_scr_write,
-
- .freeze = ahci_freeze,
- .thaw = ahci_thaw,
-
- .error_handler = ahci_vt8251_error_handler,
- .post_internal_cmd = ahci_post_internal_cmd,
-
.pmp_attach = ahci_pmp_attach,
.pmp_detach = ahci_pmp_detach,
+ .enable_pm = ahci_enable_alpm,
+ .disable_pm = ahci_disable_alpm,
#ifdef CONFIG_PM
.port_suspend = ahci_port_suspend,
.port_resume = ahci_port_resume,
#endif
-
.port_start = ahci_port_start,
.port_stop = ahci_port_stop,
};
-static const struct ata_port_operations ahci_p5wdh_ops = {
- .check_status = ahci_check_status,
- .check_altstatus = ahci_check_status,
- .dev_select = ata_noop_dev_select,
-
- .tf_read = ahci_tf_read,
-
- .qc_defer = sata_pmp_qc_defer_cmd_switch,
- .qc_prep = ahci_qc_prep,
- .qc_issue = ahci_qc_issue,
-
- .irq_clear = ahci_irq_clear,
-
- .scr_read = ahci_scr_read,
- .scr_write = ahci_scr_write,
-
- .freeze = ahci_freeze,
- .thaw = ahci_thaw,
-
- .error_handler = ahci_p5wdh_error_handler,
- .post_internal_cmd = ahci_post_internal_cmd,
-
- .pmp_attach = ahci_pmp_attach,
- .pmp_detach = ahci_pmp_detach,
-
-#ifdef CONFIG_PM
- .port_suspend = ahci_port_suspend,
- .port_resume = ahci_port_resume,
-#endif
+static struct ata_port_operations ahci_vt8251_ops = {
+ .inherits = &ahci_ops,
+ .hardreset = ahci_vt8251_hardreset,
+};
- .port_start = ahci_port_start,
- .port_stop = ahci_port_stop,
+static struct ata_port_operations ahci_p5wdh_ops = {
+ .inherits = &ahci_ops,
+ .hardreset = ahci_p5wdh_hardreset,
};
#define AHCI_HFLAGS(flags) .private_data = (void *)(flags)
@@ -407,7 +341,6 @@ static const struct ata_port_info ahci_port_info[] = {
/* board_ahci */
{
.flags = AHCI_FLAG_COMMON,
- .link_flags = AHCI_LFLAG_COMMON,
.pio_mask = 0x1f, /* pio0-4 */
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
@@ -416,7 +349,6 @@ static const struct ata_port_info ahci_port_info[] = {
{
AHCI_HFLAGS (AHCI_HFLAG_NO_NCQ | AHCI_HFLAG_NO_PMP),
.flags = AHCI_FLAG_COMMON,
- .link_flags = AHCI_LFLAG_COMMON | ATA_LFLAG_HRST_TO_RESUME,
.pio_mask = 0x1f, /* pio0-4 */
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_vt8251_ops,
@@ -425,7 +357,6 @@ static const struct ata_port_info ahci_port_info[] = {
{
AHCI_HFLAGS (AHCI_HFLAG_IGN_IRQ_IF_ERR),
.flags = AHCI_FLAG_COMMON,
- .link_flags = AHCI_LFLAG_COMMON,
.pio_mask = 0x1f, /* pio0-4 */
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
@@ -436,7 +367,6 @@ static const struct ata_port_info ahci_port_info[] = {
AHCI_HFLAG_32BIT_ONLY |
AHCI_HFLAG_SECT255 | AHCI_HFLAG_NO_PMP),
.flags = AHCI_FLAG_COMMON,
- .link_flags = AHCI_LFLAG_COMMON,
.pio_mask = 0x1f, /* pio0-4 */
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
@@ -447,7 +377,6 @@ static const struct ata_port_info ahci_port_info[] = {
AHCI_HFLAG_MV_PATA),
.flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY |
ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA,
- .link_flags = AHCI_LFLAG_COMMON,
.pio_mask = 0x1f, /* pio0-4 */
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
@@ -457,7 +386,6 @@ static const struct ata_port_info ahci_port_info[] = {
AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
AHCI_HFLAG_NO_PMP),
.flags = AHCI_FLAG_COMMON,
- .link_flags = AHCI_LFLAG_COMMON,
.pio_mask = 0x1f, /* pio0-4 */
.udma_mask = ATA_UDMA6,
.port_ops = &ahci_ops,
@@ -1663,7 +1591,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
u32 *unk = (u32 *)(pp->rx_fis + RX_FIS_UNK);
active_ehi->err_mask |= AC_ERR_HSM;
- active_ehi->action |= ATA_EH_SOFTRESET;
+ active_ehi->action |= ATA_EH_RESET;
ata_ehi_push_desc(active_ehi,
"unknown FIS %08x %08x %08x %08x" ,
unk[0], unk[1], unk[2], unk[3]);
@@ -1671,19 +1599,19 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat)
if (ap->nr_pmp_links && (irq_stat & PORT_IRQ_BAD_PMP)) {
active_ehi->err_mask |= AC_ERR_HSM;
- active_ehi->action |= ATA_EH_SOFTRESET;
+ active_ehi->action |= ATA_EH_RESET;
ata_ehi_push_desc(active_ehi, "incorrect PMP");
}
if (irq_stat & (PORT_IRQ_HBUS_ERR | PORT_IRQ_HBUS_DATA_ERR)) {
host_ehi->err_mask |= AC_ERR_HOST_BUS;
- host_ehi->action |= ATA_EH_SOFTRESET;
+ host_ehi->action |= ATA_EH_RESET;
ata_ehi_push_desc(host_ehi, "host bus error");
}
if (irq_stat & PORT_IRQ_IF_ERR) {
host_ehi->err_mask |= AC_ERR_ATA_BUS;
- host_ehi->action |= ATA_EH_SOFTRESET;
+ host_ehi->action |= ATA_EH_RESET;
ata_ehi_push_desc(host_ehi, "interface fatal error");
}
@@ -1771,16 +1699,11 @@ static void ahci_port_intr(struct ata_port *ap)
/* while resetting, invalid completions are expected */
if (unlikely(rc < 0 && !resetting)) {
ehi->err_mask |= AC_ERR_HSM;
- ehi->action |= ATA_EH_SOFTRESET;
+ ehi->action |= ATA_EH_RESET;
ata_port_freeze(ap);
}
}
-static void ahci_irq_clear(struct ata_port *ap)
-{
- /* TODO */
-}
-
static irqreturn_t ahci_interrupt(int irq, void *dev_instance)
{
struct ata_host *host = dev_instance;
@@ -1886,37 +1809,7 @@ static void ahci_error_handler(struct ata_port *ap)
ahci_start_engine(ap);
}
- /* perform recovery */
- sata_pmp_do_eh(ap, ata_std_prereset, ahci_softreset,
- ahci_hardreset, ahci_postreset,
- sata_pmp_std_prereset, ahci_pmp_softreset,
- sata_pmp_std_hardreset, sata_pmp_std_postreset);
-}
-
-static void ahci_vt8251_error_handler(struct ata_port *ap)
-{
- if (!(ap->pflags & ATA_PFLAG_FROZEN)) {
- /* restart engine */
- ahci_stop_engine(ap);
- ahci_start_engine(ap);
- }
-
- /* perform recovery */
- ata_do_eh(ap, ata_std_prereset, ahci_softreset, ahci_vt8251_hardreset,
- ahci_postreset);
-}
-
-static void ahci_p5wdh_error_handler(struct ata_port *ap)
-{
- if (!(ap->pflags & ATA_PFLAG_FROZEN)) {
- /* restart engine */
- ahci_stop_engine(ap);
- ahci_start_engine(ap);
- }
-
- /* perform recovery */
- ata_do_eh(ap, ata_std_prereset, ahci_softreset, ahci_p5wdh_hardreset,
- ahci_postreset);
+ sata_pmp_error_handler(ap);
}
static void ahci_post_internal_cmd(struct ata_queued_cmd *qc)
generated by cgit v1.2.3 (git 2.39.1) at 2024-07-13 14:03:46 +0000