From 96b04db9f2c16e77c31ef0e17e143da1e0cbfd78 Mon Sep 17 00:00:00 2001 From: "wenxiong@linux.vnet.ibm.com" Date: Wed, 17 Apr 2013 09:34:06 -0500 Subject: [PATCH] [SCSI] ipr: Need to reset adapter after the 6th EEH error Add reset adapter after the 6th EEH errors in ipr driver. This triggers the adapter reset via the PCI config space even when the slot is frozen. Signed-off-by: Wen Xiong Acked-by: Brian King Signed-off-by: James Bottomley --- drivers/scsi/ipr.c | 12 ++++++++++-- 1 file changed, 10 insertions(+), 2 deletions(-) diff --git a/drivers/scsi/ipr.c b/drivers/scsi/ipr.c index 2197b57fb225..7e64546bd981 100644 --- a/drivers/scsi/ipr.c +++ b/drivers/scsi/ipr.c @@ -4777,7 +4777,7 @@ static int ipr_eh_host_reset(struct scsi_cmnd *cmd) ioa_cfg = (struct ipr_ioa_cfg *) cmd->device->host->hostdata; spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags); - if (!ioa_cfg->in_reset_reload) { + if (!ioa_cfg->in_reset_reload && !ioa_cfg->hrrq[IPR_INIT_HRRQ].ioa_is_dead) { ipr_initiate_ioa_reset(ioa_cfg, IPR_SHUTDOWN_ABBREV); dev_err(&ioa_cfg->pdev->dev, "Adapter being reset as a result of error recovery.\n"); @@ -6739,6 +6739,7 @@ static int ipr_invalid_adapter(struct ipr_ioa_cfg *ioa_cfg) static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) { struct ipr_ioa_cfg *ioa_cfg = ipr_cmd->ioa_cfg; + int i; ENTER; if (!ioa_cfg->hrrq[IPR_INIT_HRRQ].removing_ioa) { @@ -6750,6 +6751,13 @@ static int ipr_ioa_bringdown_done(struct ipr_cmnd *ipr_cmd) ioa_cfg->in_reset_reload = 0; ioa_cfg->reset_retries = 0; + for (i = 0; i < ioa_cfg->hrrq_num; i++) { + spin_lock(&ioa_cfg->hrrq[i]._lock); + ioa_cfg->hrrq[i].ioa_is_dead = 1; + spin_unlock(&ioa_cfg->hrrq[i]._lock); + } + wmb(); + list_add_tail(&ipr_cmd->queue, &ipr_cmd->hrrq->hrrq_free_q); wake_up_all(&ioa_cfg->reset_wait_q); LEAVE; @@ -8651,7 +8659,7 @@ static void ipr_pci_perm_failure(struct pci_dev *pdev) spin_lock_irqsave(ioa_cfg->host->host_lock, flags); if (ioa_cfg->sdt_state == WAIT_FOR_DUMP) ioa_cfg->sdt_state = ABORT_DUMP; - ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES; + ioa_cfg->reset_retries = IPR_NUM_RESET_RELOAD_RETRIES - 1; ioa_cfg->in_ioa_bringdown = 1; for (i = 0; i < ioa_cfg->hrrq_num; i++) { spin_lock(&ioa_cfg->hrrq[i]._lock);