diff options
| author | Tejun Heo <htejun@gmail.com> | 2006-05-31 18:28:20 +0900 |
|---|---|---|
| committer | Tejun Heo <htejun@gmail.com> | 2006-05-31 18:28:20 +0900 |
| commit | 0542925b25676543e8384edf454668f89227e905 (patch) | |
| tree | ba9add993cf4c5e0499260126f23782a75a8219d | |
| parent | 4296971dd36e2c2deae0826305f591480223af88 (diff) | |
[PATCH] sata_sil24: convert to new probing mechanism and add hotplug support
Convert to new probing mechanism and add hotplug support by enabling
PORT_IRQ_PHYRDY_CHG, marking ehi for hotplug and scheduling EH on
PORT_IRQ_PHYRDY_CHG or PORT_IRQ_DEV_XCHG.
Sil3124/32 family of controllers don't have any mechanism to wait for
the first D2H FIS after hotplug, so ATA_FLAG_SKIP_D2H_BSY is used.
Signed-off-by: Tejun Heo <htejun@gmail.com>
| -rw-r--r-- | drivers/scsi/sata_sil24.c | 27 |
1 files changed, 8 insertions, 19 deletions
diff --git a/drivers/scsi/sata_sil24.c b/drivers/scsi/sata_sil24.c index d4ca6d6b402..97e93392f92 100644 --- a/drivers/scsi/sata_sil24.c +++ b/drivers/scsi/sata_sil24.c @@ -159,7 +159,8 @@ enum { PORT_IRQ_SDB_NOTIFY = (1 << 11), /* SDB notify received */ DEF_PORT_IRQ = PORT_IRQ_COMPLETE | PORT_IRQ_ERROR | - PORT_IRQ_DEV_XCHG | PORT_IRQ_UNK_FIS, + PORT_IRQ_PHYRDY_CHG | PORT_IRQ_DEV_XCHG | + PORT_IRQ_UNK_FIS, /* bits[27:16] are unmasked (raw) */ PORT_IRQ_RAW_SHIFT = 16, @@ -228,7 +229,7 @@ enum { /* host flags */ SIL24_COMMON_FLAGS = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | - ATA_FLAG_NCQ, + ATA_FLAG_NCQ | ATA_FLAG_SKIP_D2H_BSY, SIL24_FLAG_PCIX_IRQ_WOC = (1 << 24), /* IRQ loss errata on PCI-X */ IRQ_STAT_4PORTS = 0xf, @@ -325,7 +326,6 @@ static u8 sil24_check_status(struct ata_port *ap); static u32 sil24_scr_read(struct ata_port *ap, unsigned sc_reg); static void sil24_scr_write(struct ata_port *ap, unsigned sc_reg, u32 val); static void sil24_tf_read(struct ata_port *ap, struct ata_taskfile *tf); -static int sil24_probe_reset(struct ata_port *ap, unsigned int *classes); static void sil24_qc_prep(struct ata_queued_cmd *qc); static unsigned int sil24_qc_issue(struct ata_queued_cmd *qc); static void sil24_irq_clear(struct ata_port *ap); @@ -385,8 +385,6 @@ static const struct ata_port_operations sil24_ops = { .tf_read = sil24_tf_read, - .probe_reset = sil24_probe_reset, - .qc_prep = sil24_qc_prep, .qc_issue = sil24_qc_issue, @@ -635,13 +633,6 @@ static int sil24_hardreset(struct ata_port *ap, unsigned int *class) return -EIO; } -static int sil24_probe_reset(struct ata_port *ap, unsigned int *classes) -{ - return ata_drive_probe_reset(ap, ata_std_probeinit, - sil24_softreset, sil24_hardreset, - ata_std_postreset, classes); -} - static inline void sil24_fill_sg(struct ata_queued_cmd *qc, struct sil24_sge *sge) { @@ -772,13 +763,11 @@ static void sil24_error_intr(struct ata_port *ap) ata_ehi_push_desc(ehi, "irq_stat 0x%08x", irq_stat); - if (irq_stat & PORT_IRQ_DEV_XCHG) { - ehi->err_mask |= AC_ERR_ATA_BUS; - /* sil24 doesn't recover very well from phy - * disconnection with a softreset. Force hardreset. - */ - ehi->action |= ATA_EH_HARDRESET; - ata_ehi_push_desc(ehi, ", device_exchanged"); + if (irq_stat & (PORT_IRQ_PHYRDY_CHG | PORT_IRQ_DEV_XCHG)) { + ata_ehi_hotplugged(ehi); + ata_ehi_push_desc(ehi, ", %s", + irq_stat & PORT_IRQ_PHYRDY_CHG ? + "PHY RDY changed" : "device exchanged"); freeze = 1; } |