diff options
Diffstat (limited to 'drivers/scsi/ahci.c')
| -rw-r--r-- | drivers/scsi/ahci.c | 53 |
1 files changed, 32 insertions, 21 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index 98ce6bb62ff..24a54a5a91b 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -190,7 +190,7 @@ 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 void ahci_phy_reset(struct ata_port *ap); +static int ahci_probe_reset(struct ata_port *ap, unsigned int *classes); static void ahci_irq_clear(struct ata_port *ap); static void ahci_eng_timeout(struct ata_port *ap); static int ahci_port_start(struct ata_port *ap); @@ -230,7 +230,7 @@ static const struct ata_port_operations ahci_ops = { .tf_read = ahci_tf_read, - .phy_reset = ahci_phy_reset, + .probe_reset = ahci_probe_reset, .qc_prep = ahci_qc_prep, .qc_issue = ahci_qc_issue, @@ -252,8 +252,7 @@ static const struct ata_port_info ahci_port_info[] = { { .sht = &ahci_sht, .host_flags = ATA_FLAG_SATA | ATA_FLAG_NO_LEGACY | - ATA_FLAG_SATA_RESET | ATA_FLAG_MMIO | - ATA_FLAG_PIO_DMA, + ATA_FLAG_MMIO | ATA_FLAG_PIO_DMA, .pio_mask = 0x1f, /* pio0-4 */ .udma_mask = 0x7f, /* udma0-6 ; FIXME */ .port_ops = &ahci_ops, @@ -507,37 +506,43 @@ static unsigned int ahci_dev_classify(struct ata_port *ap) return ata_dev_classify(&tf); } -static void ahci_fill_cmd_slot(struct ata_port *ap, u32 opts) +static void ahci_fill_cmd_slot(struct ahci_port_priv *pp, u32 opts) { - struct ahci_port_priv *pp = ap->private_data; pp->cmd_slot[0].opts = cpu_to_le32(opts); pp->cmd_slot[0].status = 0; pp->cmd_slot[0].tbl_addr = cpu_to_le32(pp->cmd_tbl_dma & 0xffffffff); pp->cmd_slot[0].tbl_addr_hi = cpu_to_le32((pp->cmd_tbl_dma >> 16) >> 16); } -static void ahci_phy_reset(struct ata_port *ap) +static int ahci_hardreset(struct ata_port *ap, int verbose, unsigned int *class) { - void __iomem *port_mmio = (void __iomem *) ap->ioaddr.cmd_addr; - struct ata_device *dev = &ap->device[0]; - u32 new_tmp, tmp; + int rc; + + DPRINTK("ENTER\n"); ahci_stop_engine(ap); - __sata_phy_reset(ap); + rc = sata_std_hardreset(ap, verbose, class); ahci_start_engine(ap); - if (ap->flags & ATA_FLAG_PORT_DISABLED) - return; + if (rc == 0) + *class = ahci_dev_classify(ap); + if (*class == ATA_DEV_UNKNOWN) + *class = ATA_DEV_NONE; - dev->class = ahci_dev_classify(ap); - if (!ata_dev_present(dev)) { - ata_port_disable(ap); - return; - } + DPRINTK("EXIT, rc=%d, class=%u\n", rc, *class); + return rc; +} + +static void ahci_postreset(struct ata_port *ap, unsigned int *class) +{ + void __iomem *port_mmio = (void __iomem *) ap->ioaddr.cmd_addr; + u32 new_tmp, tmp; + + ata_std_postreset(ap, class); /* Make sure port's ATAPI bit is set appropriately */ new_tmp = tmp = readl(port_mmio + PORT_CMD); - if (dev->class == ATA_DEV_ATAPI) + if (*class == ATA_DEV_ATAPI) new_tmp |= PORT_CMD_ATAPI; else new_tmp &= ~PORT_CMD_ATAPI; @@ -547,6 +552,12 @@ static void ahci_phy_reset(struct ata_port *ap) } } +static int ahci_probe_reset(struct ata_port *ap, unsigned int *classes) +{ + return ata_drive_probe_reset(ap, NULL, NULL, ahci_hardreset, + ahci_postreset, classes); +} + static u8 ahci_check_status(struct ata_port *ap) { void __iomem *mmio = (void __iomem *) ap->ioaddr.cmd_addr; @@ -622,7 +633,7 @@ static void ahci_qc_prep(struct ata_queued_cmd *qc) if (is_atapi) opts |= AHCI_CMD_ATAPI; - ahci_fill_cmd_slot(ap, opts); + ahci_fill_cmd_slot(pp, opts); } static void ahci_restart_port(struct ata_port *ap, u32 irq_stat) @@ -703,7 +714,7 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc) ci = readl(port_mmio + PORT_CMD_ISSUE); if (likely((ci & 0x1) == 0)) { if (qc) { - assert(qc->err_mask == 0); + WARN_ON(qc->err_mask); ata_qc_complete(qc); qc = NULL; } |