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scsi: megaraid_sas: Do not fire DCMDs during PCI shutdown/detach

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This patch addresses the issue of driver firing DCMDs in PCI
shutdown/detach path irrespective of firmware state.  Driver will now
check whether firmware is in operational state or not before firing
DCMDs. If firmware is in unrecoverable state or does not become
operational within specfied time, driver will skip firing DCMDs.

[mkp: fixed typos]

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan Srikanteshwara <shivasharan.srikanteshwara@broadcom.com>
Reviewed-by: Hannes Reinecke <hare@suse.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Kashyap Desai
2016-10-21 06:33:31 -07:00
committed by Martin K. Petersen
parent b3e3827bdd
commit a1dfd62c1e
2 changed files with 45 additions and 3 deletions
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9
drivers/scsi/megaraid/megaraid_sas_fusion.c
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@@ -2463,12 +2463,15 @@ irqreturn_t megasas_isr_fusion(int irq, void *devp)
/* Start collecting crash, if DMA bit is done */
if ((fw_state == MFI_STATE_FAULT) && dma_state)
schedule_work(&instance->crash_init);
else if (fw_state == MFI_STATE_FAULT)
schedule_work(&instance->work_init);
else if (fw_state == MFI_STATE_FAULT) {
if (instance->unload == 0)
schedule_work(&instance->work_init);
}
} else if (fw_state == MFI_STATE_FAULT) {
dev_warn(&instance->pdev->dev, "Iop2SysDoorbellInt"
"for scsi%d\n", instance->host->host_no);
schedule_work(&instance->work_init);
if (instance->unload == 0)
schedule_work(&instance->work_init);
}
}