diff options
author | Dave Jones <davej@redhat.com> | 2006-12-12 18:13:32 -0500 |
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committer | Dave Jones <davej@redhat.com> | 2006-12-12 18:13:32 -0500 |
commit | f0eef25339f92f7cd4aeea23d9ae97987a5a1e82 (patch) | |
tree | 2472e94d39f43a9580a6d2d5d92de0b749023263 /drivers/ata/libata-eh.c | |
parent | 0cfea5dd98205f2fa318836da664a7d7df1afbc1 (diff) | |
parent | e1036502e5263851259d147771226161e5ccc85a (diff) |
Merge ../linus
Diffstat (limited to 'drivers/ata/libata-eh.c')
-rw-r--r-- | drivers/ata/libata-eh.c | 116 |
1 files changed, 85 insertions, 31 deletions
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c index 3fa80f09f2a..08ad44b3e48 100644 --- a/drivers/ata/libata-eh.c +++ b/drivers/ata/libata-eh.c @@ -332,7 +332,7 @@ void ata_scsi_error(struct Scsi_Host *host) if (ap->pflags & ATA_PFLAG_LOADING) ap->pflags &= ~ATA_PFLAG_LOADING; else if (ap->pflags & ATA_PFLAG_SCSI_HOTPLUG) - queue_work(ata_aux_wq, &ap->hotplug_task); + queue_delayed_work(ata_aux_wq, &ap->hotplug_task, 0); if (ap->pflags & ATA_PFLAG_RECOVERED) ata_port_printk(ap, KERN_INFO, "EH complete\n"); @@ -1136,19 +1136,21 @@ static unsigned int ata_eh_analyze_tf(struct ata_queued_cmd *qc, break; case ATA_DEV_ATAPI: - tmp = atapi_eh_request_sense(qc->dev, - qc->scsicmd->sense_buffer); - if (!tmp) { - /* ATA_QCFLAG_SENSE_VALID is used to tell - * atapi_qc_complete() that sense data is - * already valid. - * - * TODO: interpret sense data and set - * appropriate err_mask. - */ - qc->flags |= ATA_QCFLAG_SENSE_VALID; - } else - qc->err_mask |= tmp; + if (!(qc->ap->pflags & ATA_PFLAG_FROZEN)) { + tmp = atapi_eh_request_sense(qc->dev, + qc->scsicmd->sense_buffer); + if (!tmp) { + /* ATA_QCFLAG_SENSE_VALID is used to + * tell atapi_qc_complete() that sense + * data is already valid. + * + * TODO: interpret sense data and set + * appropriate err_mask. + */ + qc->flags |= ATA_QCFLAG_SENSE_VALID; + } else + qc->err_mask |= tmp; + } } if (qc->err_mask & (AC_ERR_HSM | AC_ERR_TIMEOUT | AC_ERR_ATA_BUS)) @@ -1433,16 +1435,39 @@ static void ata_eh_report(struct ata_port *ap) } for (tag = 0; tag < ATA_MAX_QUEUE; tag++) { + static const char *dma_str[] = { + [DMA_BIDIRECTIONAL] = "bidi", + [DMA_TO_DEVICE] = "out", + [DMA_FROM_DEVICE] = "in", + [DMA_NONE] = "", + }; struct ata_queued_cmd *qc = __ata_qc_from_tag(ap, tag); + struct ata_taskfile *cmd = &qc->tf, *res = &qc->result_tf; + unsigned int nbytes; if (!(qc->flags & ATA_QCFLAG_FAILED) || !qc->err_mask) continue; - ata_dev_printk(qc->dev, KERN_ERR, "tag %d cmd 0x%x " - "Emask 0x%x stat 0x%x err 0x%x (%s)\n", - qc->tag, qc->tf.command, qc->err_mask, - qc->result_tf.command, qc->result_tf.feature, - ata_err_string(qc->err_mask)); + nbytes = qc->nbytes; + if (!nbytes) + nbytes = qc->nsect << 9; + + ata_dev_printk(qc->dev, KERN_ERR, + "cmd %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x " + "tag %d cdb 0x%x data %u %s\n " + "res %02x/%02x:%02x:%02x:%02x:%02x/%02x:%02x:%02x:%02x:%02x/%02x " + "Emask 0x%x (%s)\n", + cmd->command, cmd->feature, cmd->nsect, + cmd->lbal, cmd->lbam, cmd->lbah, + cmd->hob_feature, cmd->hob_nsect, + cmd->hob_lbal, cmd->hob_lbam, cmd->hob_lbah, + cmd->device, qc->tag, qc->cdb[0], nbytes, + dma_str[qc->dma_dir], + res->command, res->feature, res->nsect, + res->lbal, res->lbam, res->lbah, + res->hob_feature, res->hob_nsect, + res->hob_lbal, res->hob_lbam, res->hob_lbah, + res->device, qc->err_mask, ata_err_string(qc->err_mask)); } } @@ -1515,7 +1540,11 @@ static int ata_eh_reset(struct ata_port *ap, int classify, if (prereset) { rc = prereset(ap); if (rc) { - ata_port_printk(ap, KERN_ERR, + if (rc == -ENOENT) { + ata_port_printk(ap, KERN_DEBUG, "port disabled. ignoring.\n"); + ap->eh_context.i.action &= ~ATA_EH_RESET_MASK; + } else + ata_port_printk(ap, KERN_ERR, "prereset failed (errno=%d)\n", rc); return rc; } @@ -1630,11 +1659,14 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap, DPRINTK("ENTER\n"); for (i = 0; i < ATA_MAX_DEVICES; i++) { - unsigned int action; + unsigned int action, readid_flags = 0; dev = &ap->device[i]; action = ata_eh_dev_action(dev); + if (ehc->i.flags & ATA_EHI_DID_RESET) + readid_flags |= ATA_READID_POSTRESET; + if (action & ATA_EH_REVALIDATE && ata_dev_ready(dev)) { if (ata_port_offline(ap)) { rc = -EIO; @@ -1642,13 +1674,17 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap, } ata_eh_about_to_do(ap, dev, ATA_EH_REVALIDATE); - rc = ata_dev_revalidate(dev, - ehc->i.flags & ATA_EHI_DID_RESET); + rc = ata_dev_revalidate(dev, readid_flags); if (rc) break; ata_eh_done(ap, dev, ATA_EH_REVALIDATE); + /* Configuration may have changed, reconfigure + * transfer mode. + */ + ehc->i.flags |= ATA_EHI_SETMODE; + /* schedule the scsi_rescan_device() here */ queue_work(ata_aux_wq, &(ap->scsi_rescan_task)); } else if (dev->class == ATA_DEV_UNKNOWN && @@ -1656,18 +1692,35 @@ static int ata_eh_revalidate_and_attach(struct ata_port *ap, ata_class_enabled(ehc->classes[dev->devno])) { dev->class = ehc->classes[dev->devno]; - rc = ata_dev_read_id(dev, &dev->class, 1, dev->id); - if (rc == 0) - rc = ata_dev_configure(dev, 1); + rc = ata_dev_read_id(dev, &dev->class, readid_flags, + dev->id); + if (rc == 0) { + ehc->i.flags |= ATA_EHI_PRINTINFO; + rc = ata_dev_configure(dev); + ehc->i.flags &= ~ATA_EHI_PRINTINFO; + } else if (rc == -ENOENT) { + /* IDENTIFY was issued to non-existent + * device. No need to reset. Just + * thaw and kill the device. + */ + ata_eh_thaw_port(ap); + dev->class = ATA_DEV_UNKNOWN; + rc = 0; + } if (rc) { dev->class = ATA_DEV_UNKNOWN; break; } - spin_lock_irqsave(ap->lock, flags); - ap->pflags |= ATA_PFLAG_SCSI_HOTPLUG; - spin_unlock_irqrestore(ap->lock, flags); + if (ata_dev_enabled(dev)) { + spin_lock_irqsave(ap->lock, flags); + ap->pflags |= ATA_PFLAG_SCSI_HOTPLUG; + spin_unlock_irqrestore(ap->lock, flags); + + /* new device discovered, configure xfermode */ + ehc->i.flags |= ATA_EHI_SETMODE; + } } } @@ -1983,13 +2036,14 @@ static int ata_eh_recover(struct ata_port *ap, ata_prereset_fn_t prereset, if (rc) goto dev_fail; - /* configure transfer mode if the port has been reset */ - if (ehc->i.flags & ATA_EHI_DID_RESET) { + /* configure transfer mode if necessary */ + if (ehc->i.flags & ATA_EHI_SETMODE) { rc = ata_set_mode(ap, &dev); if (rc) { down_xfermask = 1; goto dev_fail; } + ehc->i.flags &= ~ATA_EHI_SETMODE; } /* suspend devices */ |