[SCSI] scsi_dh_alua: retry alua rtpg extended header for illegal request response

Browse source

Some storage arrays are known to return 'illegal request'
when an rtpg extended header request is made.  T10 says the
array should ignore the bit, and return the non-extended
rtpg as the array doesn't support the request.  Working
around this by retrying the rtpg request without the extended
header bit set when the extended rtpg request results in
illegal request.

Signed-off-by: Rob Evers <revers@redhat.com>
Reviewed-by: Babu Moger <babu.moger@netapp.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>

...

This commit is contained in:

Rob Evers 2012-05-18 14:08:55 -04:00 • committed by James Bottomley

parent 3588c5a21a

commit 8e67ce6072

1 changed files with 23 additions and 3 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

26

drivers/scsi/device_handler/scsi_dh_alua.c

View file