projects / ipfire-2.x.git / blame
| Commit | Line | Data |
|---|---|---|
| 2cb7cef9 BS |
1 | From: Hannes Reinecke <hare@suse.de> |
| 2 | Subject: Retry ALUA device handler initialization on Unit Attention | |
| 3 | ||
| 4 | Whenever we receive a UNIT ATTENTION sense code we should just retry | |
| 5 | the command. We only should take care to pass through 04/02 as this | |
| 6 | is handled later on by the generic code in scsi_check_sense(). | |
| 7 | ||
| 8 | Signed-off-by: Hannes Reinecke <hare@suse.de> | |
| 9 | ||
| 10 | diff --git a/drivers/scsi/device_handler/scsi_dh_alua.c b/drivers/scsi/device_handler/scsi_dh_alua.c | |
| 11 | index e356b43..a3660a6 100644 | |
| 12 | --- a/drivers/scsi/device_handler/scsi_dh_alua.c | |
| 13 | +++ b/drivers/scsi/device_handler/scsi_dh_alua.c | |
| 14 | @@ -444,24 +444,16 @@ static int alua_check_sense(struct scsi_device *sdev, | |
| 15 | return SUCCESS; | |
| 16 | break; | |
| 17 | case UNIT_ATTENTION: | |
| 18 | - if (sense_hdr->asc == 0x29 && sense_hdr->ascq == 0x00) | |
| 19 | - /* | |
| 20 | - * Power On, Reset, or Bus Device Reset, just retry. | |
| 21 | - */ | |
| 22 | - return ADD_TO_MLQUEUE; | |
| 23 | - if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x06) { | |
| 24 | - /* | |
| 25 | - * ALUA state changed | |
| 26 | - */ | |
| 27 | - return ADD_TO_MLQUEUE; | |
| 28 | - } | |
| 29 | - if (sense_hdr->asc == 0x2a && sense_hdr->ascq == 0x07) { | |
| 30 | - /* | |
| 31 | - * Implicit ALUA state transition failed | |
| 32 | - */ | |
| 33 | - return ADD_TO_MLQUEUE; | |
| 34 | - } | |
| 35 | - break; | |
| 36 | + if (sense_hdr->asc == 0x04 && sense_hdr->ascq == 0x02) | |
| 37 | + /* | |
| 38 | + * LUN not ready, initialization command required | |
| 39 | + */ | |
| 40 | + return SCSI_RETURN_NOT_HANDLED; | |
| 41 | + | |
| 42 | + /* | |
| 43 | + * Just retry for UNIT_ATTENTION | |
| 44 | + */ | |
| 45 | + return ADD_TO_MLQUEUE; | |
| 46 | } | |
| 47 | ||
| 48 | return SCSI_RETURN_NOT_HANDLED; |