scsi: libfc: spurious I/O error under high load

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If a command times out libfc is sending an REC, which also
might fail (due to frames being lost or something).
If no data has been transferred we can simply retry
the command, but the current code sets a state of FC_ERROR,
which then is being translated into DID_ERROR, resulting
in an I/O error.
So to handle this properly we need to set a separate
state FC_TRANS_RESET and mapping it onto DID_SOFT_RETRY.

Signed-off-by: Hannes Reinecke <hare@suse.de>
Acked-by: Johannes Thumshirn <jth@kernel.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Hannes Reinecke 2016-10-13 15:10:38 +02:00 • committed by Martin K. Petersen

parent 57d3ec7e46

commit a0452bb45c

1 changed files with 15 additions and 8 deletions

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drivers/scsi/libfc/fc_fcp.c

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