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scsi: hisi_sas: add hisi_sas_clear_nexus_ha()

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Add function for upper-layer to reset controller when all else fails.

Signed-off-by: John Garry <john.garry@huawei.com>
Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
John Garry 2017-03-23 01:25:35 +08:00 committed by Martin K. Petersen
parent 4df642db5b
commit 8b05ad6a9d
1 changed files with 8 additions and 0 deletions
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8
drivers/scsi/hisi_sas/hisi_sas_main.c
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@ -1070,6 +1070,13 @@ out:
return rc;
}
static int hisi_sas_clear_nexus_ha(struct sas_ha_struct *sas_ha)
{
struct hisi_hba *hisi_hba = sas_ha->lldd_ha;
return hisi_sas_controller_reset(hisi_hba);
}
static int hisi_sas_query_task(struct sas_task *task)
{
struct scsi_lun lun;
@ -1368,6 +1375,7 @@ static struct sas_domain_function_template hisi_sas_transport_ops = {
.lldd_I_T_nexus_reset = hisi_sas_I_T_nexus_reset,
.lldd_lu_reset = hisi_sas_lu_reset,
.lldd_query_task = hisi_sas_query_task,
.lldd_clear_nexus_ha = hisi_sas_clear_nexus_ha,
.lldd_port_formed = hisi_sas_port_formed,
};