scsi: aacraid: Implement DropIO sync command

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IOP_RESET takes a long time to complete. If controller is in a state
where we can bring it back with init struct, send a DropIO sync command
instead.

 - If controller is faulted perform standard IOP_RESET in aac_srcv_init.

 - If controller is not faulted get adapter properties and extended
   properties.

 - Update the sa_firmware variable and determine if DropIO request is
   supported.

 - Issue DropIO request, and get the number of outstanding commands.

 - If all commands are complete with success (CT_OK), consider IOP_RESET
   is complete.

 - If any commands timeout, Perform the IOP_RESET.

Signed-off-by: Prasad B Munirathnam <prasad.munirathnam@microsemi.com>
Signed-off-by: Raghava Aditya Renukunta <RaghavaAditya.Renukunta@microsemi.com>
Reviewed-by: Dave Carroll <david.carroll@microsemi.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

...

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Raghava Aditya Renukunta 2018-02-07 08:40:56 -08:00 • committed by Martin K. Petersen

parent a8db6140d7

commit 44f1ce7d2f

2 changed files with 159 additions and 6 deletions

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4

drivers/scsi/aacraid/aacraid.h

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161

drivers/scsi/aacraid/src.c

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