[SCSI] zfcp: fix: reopen port only if link-test fails
From: Maxim Shchetynin <maxim@de.ibm.com>
Reopen a remote port only if the link-test fails. This avoids that a
port is unnecessarily reopened.
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 14aaab8..225e363 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -1267,8 +1267,7 @@
case FSF_SQ_INVOKE_LINK_TEST_PROCEDURE:
debug_text_event(new_fsf_req->adapter->erp_dbf, 1,
"fsf_sq_ltest");
- /* reopening link to port */
- zfcp_erp_port_reopen(unit->port, 0);
+ zfcp_test_link(unit->port);
new_fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
@@ -3125,7 +3124,7 @@
/* Re-establish link to port */
debug_text_event(adapter->erp_dbf, 1,
"fsf_sq_ltest");
- zfcp_erp_port_reopen(unit->port, 0);
+ zfcp_test_link(unit->port);
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
@@ -3368,7 +3367,7 @@
/* re-establish link to port */
debug_text_event(fsf_req->adapter->erp_dbf, 1,
"fsf_sq_ltest");
- zfcp_erp_port_reopen(unit->port, 0);
+ zfcp_test_link(unit->port);
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
@@ -3931,12 +3930,7 @@
/* re-establish link to port */
debug_text_event(fsf_req->adapter->erp_dbf, 1,
"fsf_sq_ltest");
- zfcp_erp_port_reopen(unit->port, 0);
- zfcp_cmd_dbf_event_fsf(
- "sqltest",
- fsf_req,
- &header->fsf_status_qual,
- sizeof (union fsf_status_qual));
+ zfcp_test_link(unit->port);
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
case FSF_SQ_ULP_DEPENDENT_ERP_REQUIRED:
@@ -3944,11 +3938,6 @@
/* let scsi stack deal with retries and escalation */
debug_text_event(fsf_req->adapter->erp_dbf, 1,
"fsf_sq_ulp");
- zfcp_cmd_dbf_event_fsf(
- "sqdeperp",
- fsf_req,
- &header->fsf_status_qual,
- sizeof (union fsf_status_qual));
fsf_req->status |= ZFCP_STATUS_FSFREQ_ERROR;
break;
default: