linux.git/drivers/scsi/device_handler, branch v2.6.31

[SCSI] scsi_dh_rdac: Retry for NOT_READY(02/04/01) in rdac device handler

2009-05-20T22:21:14+00:00

During device discovery read capacity fails with 0x020401 and sets the
device size to 0. As a reason any I/O submitted to this path gets
killed at sd_prep_fn with BLKPREP_KILL. This patch is to retry for
0x020401. NEED_RETRY in scsi_decide_disposition does not give
sufficient time for the device to become ready.

Signed-off-by: Vijay Chauhan 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Retry for NOT_READY check condition

2009-03-18T02:07:06+00:00

This patch adds retry for NOT_READY check condition - Quiesce in
progress (02/A1/02)

Signed-off-by: Vijay Chauhan
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Retry mode select for NO_SENSE, ABORTED_COMMAND, UNIT_ATTENTION, NOT_READY(02/04/01)

2009-03-12T17:58:23+00:00

This patch is to add retry for mode select if mode select command is
returned with sense NO_SENSE, UNIT_ATTENTION, ABORTED_COMMAND,
NOT_READY(02/04/01). This patch reorganise the sense keys from if-else
to switch-case format for better maintainability.

Signed-off-by: Vijay Chauhan 
Acked-by: Chandra Seetharaman 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Retry for Quiescence in Progress in rdac device handler

2009-03-12T17:58:12+00:00

During device discovery read capacity fails with 0x068b02 and sets the
device size to 0. As a reason any I/O submitted to this path gets
killed at sd_prep_fn with BLKPREP_KILL. This patch is to retry for
0x068b02

Signed-off-by: Vijay Chauhan 
Acked-by: Chandra Seetharaman 
Signed-off-by: James Bottomley

[SCSI] scsi dh alua: handle report luns data changed in check sense callout

2009-03-12T17:58:11+00:00

When we switch controllers the Intel Multi-Flex reports
REPORTED_LUNS_DATA_HAS_CHANGED. This patch just has us
retry the command.

Signed-off-by: Ilgu Hong 
Signed-off-by: Mike Christie 
Signed-off-by: James Bottomley

[SCSI] scsi dh alua: add intel Multi-Flex device

2009-03-12T17:58:11+00:00

This adds the Intel Multi-Flex device to scsi_dh_alua's
scsi_dh_devlist, so the module attaches to these devs.

Signed-off-by: Ilgu Hong 
Signed-off-by: Mike Christie 
Signed-off-by: James Bottomley

[SCSI] scsi dh alua: fix group id masking

2009-03-12T17:58:11+00:00

The buf[i] is a byte but we are only asking 4 bits off the
group_id. This patch has us take off a byte.

Signed-off-by: Ilgu Hong 
Signed-off-by: Mike Christie 
Signed-off-by: James Bottomley

[SCSI] scsi_dh_rdac: Add LSI vendor and product ids in rdac device list

2008-12-29T17:24:17+00:00

[jejb: fixed whitespace damage]
Signed-off-by: Babu Moger 
Signed-off-by: James Bottomley

[SCSI] scsi_dh: Retry mode select in rdac device handler

2008-12-29T17:24:15+00:00

When the mode select sent to the controller fails with the retryable
error, it is better to retry the mode_select from the hardware handler
itself, instead of propagating the failure to dm-multipath.

Signed-off-by: Chandra Seetharaman 
Signed-off-by: James Bottomley

[SCSI] scsi_dh: Make sure the state of a path is set properly when controller is swapped from passive to active

2008-12-29T17:24:15+00:00

When the controller ownership is changed (from passive to active),
check_ownership() doesn't set the state of the device to ACTIVE.

Signed-off-by: Chandra Seetharaman 
Reported-by: "Moger, Babu" 
Signed-off-by: James Bottomley