diff options
| author | James Smart <james.smart@emulex.com> | 2012-05-09 21:19:44 -0400 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-05-17 11:17:18 +0100 |
| commit | 27b01b821f136e657c28078007a865a307816c1a (patch) | |
| tree | e2f3faf40148b02bcf65c751ce3fa6efdb500874 /drivers/scsi/lpfc/lpfc_scsi.c | |
| parent | 93d1379e6924daef1968779d97c46ba2e0915fd2 (diff) | |
[SCSI] lpfc 8.3.31: Fixed system crash due to not providing SCSI error-handling host reset handler
Signed-off-by: Alex Iannicelli <alex.iannicelli@emulex.com>
Signed-off-by: James Smart <james.smart@emulex.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_scsi.c')
| -rw-r--r-- | drivers/scsi/lpfc/lpfc_scsi.c | 38 |
1 files changed, 38 insertions, 0 deletions
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c index b410555f3a8..66e09069f28 100644 --- a/drivers/scsi/lpfc/lpfc_scsi.c +++ b/drivers/scsi/lpfc/lpfc_scsi.c @@ -4959,6 +4959,43 @@ lpfc_bus_reset_handler(struct scsi_cmnd *cmnd) } /** + * lpfc_host_reset_handler - scsi_host_template eh_host_reset_handler entry pt + * @cmnd: Pointer to scsi_cmnd data structure. + * + * This routine does host reset to the adaptor port. It brings the HBA + * offline, performs a board restart, and then brings the board back online. + * The lpfc_offline calls lpfc_sli_hba_down which will abort and local + * reject all outstanding SCSI commands to the host and error returned + * back to SCSI mid-level. As this will be SCSI mid-level's last resort + * of error handling, it will only return error if resetting of the adapter + * is not successful; in all other cases, will return success. + * + * Return code : + * 0x2003 - Error + * 0x2002 - Success + **/ +static int +lpfc_host_reset_handler(struct scsi_cmnd *cmnd) +{ + struct Scsi_Host *shost = cmnd->device->host; + struct lpfc_vport *vport = (struct lpfc_vport *) shost->hostdata; + struct lpfc_hba *phba = vport->phba; + int rc, ret = SUCCESS; + + lpfc_offline_prep(phba); + lpfc_offline(phba); + rc = lpfc_sli_brdrestart(phba); + if (rc) + ret = FAILED; + lpfc_online(phba); + lpfc_unblock_mgmt_io(phba); + + lpfc_printf_log(phba, KERN_ERR, LOG_FCP, + "3172 SCSI layer issued Host Reset Data: x%x\n", ret); + return ret; +} + +/** * lpfc_slave_alloc - scsi_host_template slave_alloc entry point * @sdev: Pointer to scsi_device. * @@ -5090,6 +5127,7 @@ struct scsi_host_template lpfc_template = { .eh_device_reset_handler = lpfc_device_reset_handler, .eh_target_reset_handler = lpfc_target_reset_handler, .eh_bus_reset_handler = lpfc_bus_reset_handler, + .eh_host_reset_handler = lpfc_host_reset_handler, .slave_alloc = lpfc_slave_alloc, .slave_configure = lpfc_slave_configure, .slave_destroy = lpfc_slave_destroy, |