scsi: ibmvfc: add FC Class 3 Error Recovery support

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The ibmvfc driver currently doesn't support FC Class 3 Error Recovery.
However, it is simply a matter of informing the VIOS that the payload
expects to use sequence level error recovery via a bit flag in the
ibmvfc_cmd structure.

This patch adds a module parameter to enable error recovery support at
boot time. When enabled the RETRY service parameter bit is set during
PRLI, and ibmvfc_cmd->flags includes the IBMVFC_CLASS_3_ERR bit.

Signed-off-by: Tyrel Datwyler <tyreld@linux.vnet.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Tyrel Datwyler 2016-08-03 16:36:53 -05:00 • committed by Martin K. Petersen

parent bb5a505407

commit a6104b1e18

2 changed files with 11 additions and 0 deletions

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10

drivers/scsi/ibmvscsi/ibmvfc.c

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1

drivers/scsi/ibmvscsi/ibmvfc.h

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