linux/drivers/scsi/device_handler, branch v2.6.30

[SCSI] scsi_dh_rdac: Retry for NOT_READY check condition

2009-03-18T02:07:06Z

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)

2009-03-12T17:58:23Z

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

2009-03-12T17:58:12Z

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

2009-03-12T17:58:11Z

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

2009-03-12T17:58:11Z

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

2009-03-12T17:58:11Z

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

2008-12-29T17:24:17Z

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

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

2008-12-29T17:24:15Z

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

2008-12-29T17:24:15Z

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

Commands needing to be retried require a complete re-initialization.

2008-12-12T15:04:26Z

The test-unit-ready portion of this patch was causing boots to fail on my test machine (as in http://lkml.org/lkml/2008/12/5/161). With this patch in place, the system is booting reliably. Mike Anderson found the same problem in the hp_hw_start_stop code, and I applied the same solution in cdrom_read_cdda_bpc. Signed-off-by: Alan D. Brunelle Cc: Mike Anderson Signed-off-by: Jens Axboe