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[SCSI] qla2xxx: Wait for IDC complete event to finish loopback operation.

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Wait for the IDC complete AEN before returning the loopback operation back to
the application to make sure the port is put back into normal operations.

Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com>
Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com>
Signed-off-by: James Bottomley <JBottomley@Parallels.com>
This commit is contained in:
Chad Dupuis
2013-02-08 01:58:04 -05:00
committed by James Bottomley
parent fe52f6e121
commit f356bef134
4 changed files with 39 additions and 10 deletions
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39
drivers/scsi/qla2xxx/qla_bsg.c
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@@ -535,7 +535,7 @@ done:
/* Disable loopback mode */
static inline int
qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
int wait)
int wait, int wait2)
{
int ret = 0;
int rval = 0;
@@ -556,28 +556,45 @@ qla81xx_reset_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
memcpy(&new_config[1], &config[1], sizeof(uint16_t) * 3) ;
ha->notify_dcbx_comp = wait;
ha->notify_lb_portup_comp = wait2;
ret = qla81xx_set_port_config(vha, new_config);
if (ret != QLA_SUCCESS) {
ql_log(ql_log_warn, vha, 0x7025,
"Set port config failed.\n");
ha->notify_dcbx_comp = 0;
ha->notify_lb_portup_comp = 0;
rval = -EINVAL;
goto done_reset_internal;
}
/* Wait for DCBX complete event */
if (wait && !wait_for_completion_timeout(&ha->dcbx_comp,
(20 * HZ))) {
(DCBX_COMP_TIMEOUT * HZ))) {
ql_dbg(ql_dbg_user, vha, 0x7026,
"State change notification not received.\n");
"DCBX completion not received.\n");
ha->notify_dcbx_comp = 0;
ha->notify_lb_portup_comp = 0;
rval = -EINVAL;
goto done_reset_internal;
} else
ql_dbg(ql_dbg_user, vha, 0x7027,
"State change received.\n");
"DCBX completion received.\n");
if (wait2 &&
!wait_for_completion_timeout(&ha->lb_portup_comp,
(LB_PORTUP_COMP_TIMEOUT * HZ))) {
ql_dbg(ql_dbg_user, vha, 0x70c5,
"Port up completion not received.\n");
ha->notify_lb_portup_comp = 0;
rval = -EINVAL;
goto done_reset_internal;
} else
ql_dbg(ql_dbg_user, vha, 0x70c6,
"Port up completion received.\n");
ha->notify_dcbx_comp = 0;
ha->notify_lb_portup_comp = 0;
}
done_reset_internal:
return rval;
@@ -618,10 +635,11 @@ qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
}
/* Wait for DCBX complete event */
if (!wait_for_completion_timeout(&ha->dcbx_comp, (20 * HZ))) {
if (!wait_for_completion_timeout(&ha->dcbx_comp,
(DCBX_COMP_TIMEOUT * HZ))) {
ql_dbg(ql_dbg_user, vha, 0x7022,
"State change notification not received.\n");
ret = qla81xx_reset_loopback_mode(vha, new_config, 0);
"DCBX completion not received.\n");
ret = qla81xx_reset_loopback_mode(vha, new_config, 0, 0);
/*
* If the reset of the loopback mode doesn't work take a FCoE
* dump and reset the chip.
@@ -639,7 +657,7 @@ qla81xx_set_loopback_mode(scsi_qla_host_t *vha, uint16_t *config,
ha->flags.idc_compl_status = 0;
} else
ql_dbg(ql_dbg_user, vha, 0x7023,
"State change received.\n");
"DCBX completion received.\n");
}
ha->notify_dcbx_comp = 0;
@@ -749,6 +767,7 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
if (IS_QLA81XX(ha) || IS_QLA8031(ha)) {
memset(config, 0, sizeof(config));
memset(new_config, 0, sizeof(new_config));
if (qla81xx_get_port_config(vha, config)) {
ql_log(ql_log_warn, vha, 0x701f,
"Get port config failed.\n");
@@ -773,7 +792,7 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
config, new_config, elreq.options);
else
rval = qla81xx_reset_loopback_mode(vha,
config, 1);
config, 1, 0);
else
rval = qla81xx_set_loopback_mode(vha, config,
new_config, elreq.options);
@@ -817,7 +836,7 @@ qla2x00_process_loopback(struct fc_bsg_job *bsg_job)
* Also clear internal loopback
*/
ret = qla81xx_reset_loopback_mode(vha,
new_config, 0);
new_config, 0, 1);
if (ret) {
/*
* If the reset of the loopback mode