diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/scsi/ahci.c | 24 |
1 files changed, 19 insertions, 5 deletions
diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c index 4e96ec5f2ff..c710a7def7a 100644 --- a/drivers/scsi/ahci.c +++ b/drivers/scsi/ahci.c @@ -603,7 +603,12 @@ static void ahci_intr_error(struct ata_port *ap, u32 irq_stat) writel(tmp, port_mmio + PORT_CMD); readl(port_mmio + PORT_CMD); /* flush */ - printk(KERN_WARNING "ata%u: error occurred, port reset\n", ap->id); + printk(KERN_WARNING "ata%u: error occurred, port reset (%s%s%s%s)\n", + ap->id, + irq_stat & PORT_IRQ_TF_ERR ? "taskf " : "", + irq_stat & PORT_IRQ_HBUS_ERR ? "hbus " : "", + irq_stat & PORT_IRQ_HBUS_DATA_ERR ? "hbus_data " : "", + irq_stat & PORT_IRQ_IF_ERR ? "if " : ""); } static void ahci_eng_timeout(struct ata_port *ap) @@ -618,13 +623,13 @@ static void ahci_eng_timeout(struct ata_port *ap) spin_lock_irqsave(&host_set->lock, flags); - ahci_intr_error(ap, readl(port_mmio + PORT_IRQ_STAT)); - qc = ata_qc_from_tag(ap, ap->active_tag); if (!qc) { printk(KERN_ERR "ata%u: BUG: timeout without command\n", ap->id); } else { + ahci_intr_error(ap, readl(port_mmio + PORT_IRQ_STAT)); + /* hack alert! We cannot use the supplied completion * function from inside the ->eh_strategy_handler() thread. * libata is the only user of ->eh_strategy_handler() in @@ -659,9 +664,18 @@ static inline int ahci_host_intr(struct ata_port *ap, struct ata_queued_cmd *qc) } if (status & PORT_IRQ_FATAL) { - ahci_intr_error(ap, status); + unsigned int err_mask; + if (status & PORT_IRQ_TF_ERR) + err_mask = AC_ERR_DEV; + else if (status & PORT_IRQ_IF_ERR) + err_mask = AC_ERR_ATA_BUS; + else + err_mask = AC_ERR_HOST_BUS; + + if (err_mask != AC_ERR_DEV) + ahci_intr_error(ap, status); if (qc) - ata_qc_complete(qc, AC_ERR_OTHER); + ata_qc_complete(qc, err_mask); } return 1; |