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[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>
This commit is contained in:
Andreas Herrmann 2005-06-13 13:16:27 +02:00 committed by James Bottomley
parent 22753fa514
commit 65a8d4e1a3
1 changed files with 4 additions and 15 deletions
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19
drivers/s390/scsi/zfcp_fsf.c
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@ -1267,8 +1267,7 @@ zfcp_fsf_abort_fcp_command_handler(struct zfcp_fsf_req *new_fsf_req)
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 @@ zfcp_fsf_open_unit_handler(struct zfcp_fsf_req *fsf_req)
/* 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 @@ zfcp_fsf_close_unit_handler(struct zfcp_fsf_req *fsf_req)
/* 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 @@ zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req)
/* 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 @@ zfcp_fsf_send_fcp_command_handler(struct zfcp_fsf_req *fsf_req)
/* 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: