scsi: megaraid_sas: Add support for FW snap dump

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Latest firmware adds a mechanism to save firmware logs just before
controller reset on pre-allocated internal controller DRAM. This feature is
called snapdump which will help debugging firmware issues.  This feature
requires extra time and firmware reports these values through new driver
interface. Before initiating an OCR, driver needs to inform FW to save a
snapdump and then wait for a specified time for the snapdump to complete.

Signed-off-by: Sumit Saxena <sumit.saxena@broadcom.com>
Signed-off-by: Shivasharan S <shivasharan.srikanteshwara@broadcom.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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This commit is contained in:

Shivasharan S 2018-10-16 23:37:40 -07:00 • committed by Martin K. Petersen

parent 3f6194af53

commit f0c21df652

4 changed files with 208 additions and 13 deletions

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25

drivers/scsi/megaraid/megaraid_sas.h

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118

drivers/scsi/megaraid/megaraid_sas_base.c

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66

drivers/scsi/megaraid/megaraid_sas_fusion.c

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12

drivers/scsi/megaraid/megaraid_sas_fusion.h

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