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authorDan Williams <dan.j.williams@intel.com>2011-11-29 12:08:50 -0800
committerJames Bottomley <JBottomley@Parallels.com>2012-02-19 14:07:15 -0600
commit3944f50995f947558c35fb16ae0288354756762c (patch)
tree59100b5e0a6aaef675bab78a31838356a3554a95 /include
parent9095a64a9aead653df320e3a6fc70835c15d46e4 (diff)
downloadlinux-3944f50995f947558c35fb16ae0288354756762c.tar.gz
[SCSI] libsas: let libata handle command timeouts
libsas-eh if it successfully aborts an ata command will hide the timeout
condition (AC_ERR_TIMEOUT) from libata.  The command likely completes
with the all-zero task->task_status it started with.  Instead, interpret
a TMF_RESP_FUNC_COMPLETE as the end of the sas_task but keep the scmd
around for libata-eh to handle.

Tested-by: Andrzej Jakowski <andrzej.jakowski@intel.com>
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'include')
-rw-r--r--include/scsi/libsas.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/scsi/libsas.h b/include/scsi/libsas.h
index aa7192ff4355..6b80310e08af 100644
--- a/include/scsi/libsas.h
+++ b/include/scsi/libsas.h
@@ -382,7 +382,8 @@ struct sas_ha_struct {
 
 	void *lldd_ha;		  /* not touched by sas class code */
 
-	struct list_head eh_done_q;
+	struct list_head eh_done_q;  /* complete via scsi_eh_flush_done_q */
+	struct list_head eh_ata_q; /* scmds to promote from sas to ata eh */
 };
 
 #define SHOST_TO_SAS_HA(_shost) (*(struct sas_ha_struct **)(_shost)->hostdata)