diff options
| author | Dan Williams <dan.j.williams@intel.com> | 2012-06-22 08:30:53 +0200 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2012-07-20 09:58:50 +0200 |
| commit | 9524c6821849bddad4bf592a47276cfb8a8a98c0 (patch) | |
| tree | f49578198e8ab3388f529a7a39aefc69af535d82 | |
| parent | [SCSI] libsas: enforce eh strategy handlers only in eh context (diff) | |
| download | linux-9524c6821849bddad4bf592a47276cfb8a8a98c0.tar.xz linux-9524c6821849bddad4bf592a47276cfb8a8a98c0.zip | |
[SCSI] libsas: add sas_eh_abort_handler
When recovering failed eh-cmnds let the lldd attempt an abort via
scsi_abort_eh_cmnd before escalating.
Reviewed-by: Jacek Danecki <jacek.danecki@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
| -rw-r--r-- | drivers/scsi/libsas/sas_scsi_host.c | 21 | ||||
| -rw-r--r-- | include/scsi/libsas.h | 1 |
2 files changed, 22 insertions, 0 deletions
diff --git a/drivers/scsi/libsas/sas_scsi_host.c b/drivers/scsi/libsas/sas_scsi_host.c index 2e0e779fb3b2..875b87112c50 100644 --- a/drivers/scsi/libsas/sas_scsi_host.c +++ b/drivers/scsi/libsas/sas_scsi_host.c @@ -531,6 +531,27 @@ static int sas_queue_reset(struct domain_device *dev, int reset_type, int lun, i return FAILED; } +int sas_eh_abort_handler(struct scsi_cmnd *cmd) +{ + int res; + struct sas_task *task = TO_SAS_TASK(cmd); + struct Scsi_Host *host = cmd->device->host; + struct sas_internal *i = to_sas_internal(host->transportt); + + if (current != host->ehandler) + return FAILED; + + if (!i->dft->lldd_abort_task) + return FAILED; + + res = i->dft->lldd_abort_task(task); + if (res == TMF_RESP_FUNC_SUCC || res == TMF_RESP_FUNC_COMPLETE) + return SUCCESS; + + return FAILED; +} +EXPORT_SYMBOL_GPL(sas_eh_abort_handler); + /* Attempt to send a LUN reset message to a device */ int sas_eh_device_reset_handler(struct scsi_cmnd *cmd) { diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h index df9cefdf2a8e..acefe13ebacf 100644 --- a/include/scsi/libsas.h +++ b/include/scsi/libsas.h @@ -720,6 +720,7 @@ void sas_unregister_dev(struct asd_sas_port *port, struct domain_device *); void sas_init_dev(struct domain_device *); void sas_task_abort(struct sas_task *); +int sas_eh_abort_handler(struct scsi_cmnd *cmd); int sas_eh_device_reset_handler(struct scsi_cmnd *cmd); int sas_eh_bus_reset_handler(struct scsi_cmnd *cmd); |