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scsi: be2iscsi: Fix to add timer for UE detection

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UE detection in health check is done in a work scheduled in global wq.
UE caused due to transient parity errors are recoverable and reported
within 1s. If this check for TPE gets delayed, PF0 might initiate
soft-reset and then status of UE recoverable is lost.

Handle UE detection in timer routine. Move out EQ delay update work
from health check. Make the IOCTL for EQ delay update non-blocking
as the completion status is ignored.

Signed-off-by: Jitendra Bhivare <jitendra.bhivare@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Jitendra Bhivare
2016-08-19 15:20:13 +05:30
committed by Martin K. Petersen
parent 50a4b824be
commit 10bcd47dff
6 changed files with 78 additions and 54 deletions
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7
drivers/scsi/be2iscsi/be_cmds.c
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@@ -515,6 +515,13 @@ int beiscsi_process_mcc_compl(struct be_ctrl_info *ctrl,
return 0;
}
if (test_bit(MCC_TAG_STATE_IGNORE, &ctrl->ptag_state[tag].tag_state)) {
/* just check completion status and free wrb */
__beiscsi_mcc_compl_status(phba, tag, NULL, NULL);
free_mcc_wrb(ctrl, tag);
return 0;
}
wake_up_interruptible(&ctrl->mcc_wait[tag]);
return 0;
}