scsi: cxlflash: Track pending scsi commands in each hardware queue

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Currently, there is no book keeping of the pending scsi commands in the
cxlflash driver. This lack of tracking in-flight requests is too
restrictive and requires a heavy-hammer reset each time an adapter error is
encountered. Additionally, it does not allow for commands to be properly
retried.

In order to avoid this problem and to better handle error path command
cleanup, introduce a linked list for each hardware queue that tracks
pending commands.

Signed-off-by: Uma Krishnan <ukrishn@linux.vnet.ibm.com>
Acked-by: Matthew R. Ochs <mrochs@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Uma Krishnan 2017-06-21 21:14:43 -05:00 • committed by Martin K. Petersen

parent c2c292f450

commit a002bf830f

2 changed files with 11 additions and 0 deletions

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2

drivers/scsi/cxlflash/common.h

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9

drivers/scsi/cxlflash/main.c

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