scsi: zfcp: enhance handling of FC Endpoint Security errors

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Enable for explicit FCP channel FC Endpoint Security error reporting and
handle any FSF security errors according to specification. Take the
following recovery actions when a FSF_SECURITY_ERROR is reported for the
specified FSF commands:

- Open Port: Retry the command if possible
- Send FCP : Physically close the remote port and reopen

For Open Port the command status is set to error, which triggers a retry.
For Send FCP the command status is set to error and recovery is triggered
to physically reopen the remote port.

Link: https://lore.kernel.org/r/20200312174505.51294-10-maier@linux.ibm.com
Reviewed-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Steffen Maier <maier@linux.ibm.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>

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Jens Remus 2020-03-12 18:45:04 +01:00 • committed by Martin K. Petersen

parent 616da39e00

commit e53d92856e

2 changed files with 12 additions and 2 deletions

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13

drivers/s390/scsi/zfcp_fsf.c

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1

drivers/s390/scsi/zfcp_fsf.h

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