diff options
| -rw-r--r-- | drivers/scsi/ahci.c | 47 |
1 files changed, 27 insertions, 20 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index 60f455bf369..e261b37c2e4 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -136,6 +136,7 @@ enum { PORT_IRQ_FREEZE = PORT_IRQ_HBUS_ERR | PORT_IRQ_IF_ERR | PORT_IRQ_CONNECT | + PORT_IRQ_PHYRDY | PORT_IRQ_UNK_FIS, PORT_IRQ_ERROR = PORT_IRQ_FREEZE | PORT_IRQ_TF_ERR | @@ -200,7 +201,6 @@ static void 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 irqreturn_t ahci_interrupt (int irq, void *dev_instance, struct pt_regs *regs); -static int ahci_probe_reset(struct ata_port *ap, unsigned int *classes); 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); @@ -241,8 +241,6 @@ static const struct ata_port_operations ahci_ops = { .tf_read = ahci_tf_read, - .probe_reset = ahci_probe_reset, - .qc_prep = ahci_qc_prep, .qc_issue = ahci_qc_issue, @@ -267,7 +265,8 @@ static const struct ata_port_info ahci_port_info[] = { { .sht = &ahci_sht, .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | - ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, + ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | + ATA_FLAG_SKIP_D2H_BSY, .pio_mask = 0x1f, /* pio0-4 */ .udma_mask = 0x7f, /* udma0-6 ; FIXME */ .port_ops = &ahci_ops, @@ -277,6 +276,7 @@ static const struct ata_port_info ahci_port_info[] = { .sht = &ahci_sht, .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA | + ATA_FLAG_SKIP_D2H_BSY | AHCI_FLAG_RESET_NEEDS_CLO, .pio_mask = 0x1f, /* pio0-4 */ .udma_mask = 0x7f, /* udma0-6 ; FIXME */ @@ -569,6 +569,17 @@ static int ahci_clo(struct ata_port *ap) return 0; } +static int ahci_prereset(struct ata_port *ap) +{ + if ((ap->flags & AHCI_FLAG_RESET_NEEDS_CLO) && + (ata_busy_wait(ap, ATA_BUSY, 1000) & ATA_BUSY)) { + /* ATA_BUSY hasn't cleared, so send a CLO */ + ahci_clo(ap); + } + + return ata_std_prereset(ap); +} + static int ahci_softreset(struct ata_port *ap, unsigned int *class) { struct ahci_port_priv *pp = ap->private_data; @@ -678,12 +689,22 @@ static int ahci_softreset(struct ata_port *ap, unsigned int *class) static int ahci_hardreset(struct ata_port *ap, unsigned int *class) { + struct ahci_port_priv *pp = ap->private_data; + u8 *d2h_fis = pp->rx_fis + RX_FIS_D2H_REG; + struct ata_taskfile tf; int rc; DPRINTK("ENTER\n"); ahci_stop_engine(ap); + + /* clear D2H reception area to properly wait for D2H FIS */ + ata_tf_init(ap->device, &tf); + tf.command = 0xff; + ata_tf_to_fis(&tf, d2h_fis, 0); + rc = sata_std_hardreset(ap, class); + ahci_start_engine(ap); if (rc == 0 && ata_port_online(ap)) @@ -714,19 +735,6 @@ static void ahci_postreset(struct ata_port *ap, unsigned int *class) } } -static int ahci_probe_reset(struct ata_port *ap, unsigned int *classes) -{ - if ((ap->flags & AHCI_FLAG_RESET_NEEDS_CLO) && - (ata_busy_wait(ap, ATA_BUSY, 1000) & ATA_BUSY)) { - /* ATA_BUSY hasn't cleared, so send a CLO */ - ahci_clo(ap); - } - - return ata_drive_probe_reset(ap, ata_std_probeinit, - ahci_softreset, ahci_hardreset, - ahci_postreset, classes); -} - static u8 ahci_check_status(struct ata_port *ap) { void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr; @@ -839,8 +847,7 @@ static void ahci_error_intr(struct ata_port *ap, u32 irq_stat) } if (irq_stat & (PORT_IRQ_CONNECT | PORT_IRQ_PHYRDY)) { - err_mask |= AC_ERR_ATA_BUS; - action |= ATA_EH_SOFTRESET; + ata_ehi_hotplugged(ehi); ata_ehi_push_desc(ehi, ", %s", irq_stat & PORT_IRQ_CONNECT ? "connection status changed" : "PHY RDY changed"); } @@ -1027,7 +1034,7 @@ static void ahci_error_handler(struct ata_port *ap) } /* perform recovery */ - ata_do_eh(ap, ata_std_prereset, ahci_softreset, ahci_hardreset, + ata_do_eh(ap, ahci_prereset, ahci_softreset, ahci_hardreset, ahci_postreset); } |