diff options
| author | Brian King <brking@us.ibm.com> | 2006-11-21 10:27:58 -0600 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-11-22 12:17:55 -0600 |
| commit | 73d98ff0fa8d9074792b7273f57d9f92810104c6 (patch) | |
| tree | 48d63bd93823cb631d1d7c9ba1cbb16b9bb5c2e6 /drivers/scsi/ipr.c | |
| parent | 7feb6b3fbb48ceaceb7a66a9784106abef48e454 (diff) | |
| download | linux-73d98ff0fa8d9074792b7273f57d9f92810104c6.tar.bz2 | |
[SCSI] ipr: SATA reset - wait for host reset completion
If an ipr adapter hits a fatal microcode error requiring a reset
while a SATA device is going through EH, it can result in a command
getting issued to the ipr adapter while it is getting reset, which
can cause PCI bus errors. Wait for any outstanding adapter reset
to finish prior to issuing a SATA device reset.
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/ipr.c')
| -rw-r--r-- | drivers/scsi/ipr.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 2dde821025f3..c983f0f07584 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -3573,6 +3573,12 @@ static int ipr_sata_reset(struct ata_port *ap, unsigned int *classes) ENTER; spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + while(ioa_cfg->in_reset_reload) { + spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags); + wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); + spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); + } + res = sata_port->res; if (res) { rc = ipr_device_reset(ioa_cfg, res); @@ -4776,6 +4782,12 @@ static void ipr_ata_post_internal(struct ata_queued_cmd *qc) unsigned long flags; spin_lock_irqsave(ioa_cfg->host->host_lock, flags); + while(ioa_cfg->in_reset_reload) { + spin_unlock_irqrestore(ioa_cfg->host->host_lock, flags); + wait_event(ioa_cfg->reset_wait_q, !ioa_cfg->in_reset_reload); + spin_lock_irqsave(ioa_cfg->host->host_lock, flags); + } + list_for_each_entry(ipr_cmd, &ioa_cfg->pending_q, queue) { if (ipr_cmd->qc == qc) { ipr_device_reset(ioa_cfg, sata_port->res); |