scsi: qedf: Modify flush routine to handle all I/Os and TMF

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The purpose of flush routine is to cleanup I/Os to the firmware and
complete them to scsi middle layer. This routine is invoked before
connection is uploaded because of rport going away.

 - Don't process any I/Os, aborts, TMFs coming when flush in progress.

 - Add flags to handle cleanup and release of I/Os because flush can
   prematurely complete I/Os.

 - Original command can get completed to driver when cleanup for same is
   posted to firmware, handle this condition.

 - Modify flush to handle I/Os in all the states like abort, TMF, RRQ and
   timeouts.

Signed-off-by: Shyam Sundar <ssundar@marvell.com>
Signed-off-by: Chad Dupuis <cdupuis@marvell.com>
Signed-off-by: Saurav Kashyap <skashyap@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

...

This commit is contained in:

Shyam Sundar 2019-03-26 00:38:37 -07:00 • committed by Martin K. Petersen

parent 3e2c11b3fb

commit 5d5e55659b

4 changed files with 277 additions and 26 deletions

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6

drivers/scsi/qedf/qedf.h

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4

drivers/scsi/qedf/qedf_els.c

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285

drivers/scsi/qedf/qedf_io.c

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8

drivers/scsi/qedf/qedf_main.c

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