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path: root/drivers/s390/scsi/zfcp_fsf.c
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Diffstat (limited to 'drivers/s390/scsi/zfcp_fsf.c')
-rw-r--r--drivers/s390/scsi/zfcp_fsf.c110
1 files changed, 63 insertions, 47 deletions
diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 3b0fc1163f5f4..59587951c847c 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -554,6 +554,17 @@ static void
zfcp_fsf_link_down_info_eval(struct zfcp_adapter *adapter,
struct fsf_link_down_info *link_down)
{
+ if (atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
+ &adapter->status))
+ return;
+
+ atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED, &adapter->status);
+
+ if (link_down == NULL) {
+ zfcp_erp_adapter_reopen(adapter, 0);
+ return;
+ }
+
switch (link_down->error_code) {
case FSF_PSQ_LINK_NO_LIGHT:
ZFCP_LOG_NORMAL("The local link to adapter %s is down "
@@ -634,20 +645,15 @@ zfcp_fsf_link_down_info_eval(struct zfcp_adapter *adapter,
link_down->explanation_code,
link_down->vendor_specific_code);
- if (!atomic_test_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
- &adapter->status)) {
- atomic_set_mask(ZFCP_STATUS_ADAPTER_LINK_UNPLUGGED,
- &adapter->status);
- switch (link_down->error_code) {
- case FSF_PSQ_LINK_NO_LIGHT:
- case FSF_PSQ_LINK_WRAP_PLUG:
- case FSF_PSQ_LINK_NO_FCP:
- case FSF_PSQ_LINK_FIRMWARE_UPDATE:
- zfcp_erp_adapter_reopen(adapter, 0);
- break;
- default:
- zfcp_erp_adapter_failed(adapter);
- }
+ switch (link_down->error_code) {
+ case FSF_PSQ_LINK_NO_LIGHT:
+ case FSF_PSQ_LINK_WRAP_PLUG:
+ case FSF_PSQ_LINK_NO_FCP:
+ case FSF_PSQ_LINK_FIRMWARE_UPDATE:
+ zfcp_erp_adapter_reopen(adapter, 0);
+ break;
+ default:
+ zfcp_erp_adapter_failed(adapter);
}
}
@@ -919,30 +925,36 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req)
case FSF_STATUS_READ_SUB_NO_PHYSICAL_LINK:
ZFCP_LOG_INFO("Physical link to adapter %s is down\n",
zfcp_get_busid_by_adapter(adapter));
+ zfcp_fsf_link_down_info_eval(adapter,
+ (struct fsf_link_down_info *)
+ &status_buffer->payload);
break;
case FSF_STATUS_READ_SUB_FDISC_FAILED:
ZFCP_LOG_INFO("Local link to adapter %s is down "
"due to failed FDISC login\n",
- zfcp_get_busid_by_adapter(adapter));
+ zfcp_get_busid_by_adapter(adapter));
+ zfcp_fsf_link_down_info_eval(adapter,
+ (struct fsf_link_down_info *)
+ &status_buffer->payload);
break;
case FSF_STATUS_READ_SUB_FIRMWARE_UPDATE:
ZFCP_LOG_INFO("Local link to adapter %s is down "
"due to firmware update on adapter\n",
zfcp_get_busid_by_adapter(adapter));
+ zfcp_fsf_link_down_info_eval(adapter, NULL);
break;
default:
ZFCP_LOG_INFO("Local link to adapter %s is down "
"due to unknown reason\n",
zfcp_get_busid_by_adapter(adapter));
+ zfcp_fsf_link_down_info_eval(adapter, NULL);
};
- zfcp_fsf_link_down_info_eval(adapter,
- (struct fsf_link_down_info *) &status_buffer->payload);
break;
case FSF_STATUS_READ_LINK_UP:
ZFCP_LOG_NORMAL("Local link to adapter %s was replugged. "
- "Restarting operations on this adapter\n",
- zfcp_get_busid_by_adapter(adapter));
+ "Restarting operations on this adapter\n",
+ zfcp_get_busid_by_adapter(adapter));
/* All ports should be marked as ready to run again */
zfcp_erp_modify_adapter_status(adapter,
ZFCP_STATUS_COMMON_RUNNING,
@@ -2191,13 +2203,10 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
return -EOPNOTSUPP;
}
- timer = kmalloc(sizeof(struct timer_list), GFP_KERNEL);
- if (!timer)
- return -ENOMEM;
-
/* setup new FSF request */
retval = zfcp_fsf_req_create(adapter, FSF_QTCB_EXCHANGE_PORT_DATA,
- 0, 0, &lock_flags, &fsf_req);
+ erp_action ? ZFCP_REQ_AUTO_CLEANUP : 0,
+ 0, &lock_flags, &fsf_req);
if (retval < 0) {
ZFCP_LOG_INFO("error: Out of resources. Could not create an "
"exchange port data request for"
@@ -2205,25 +2214,33 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
zfcp_get_busid_by_adapter(adapter));
write_unlock_irqrestore(&adapter->request_queue.queue_lock,
lock_flags);
- goto out;
- }
-
- if (erp_action) {
- erp_action->fsf_req = fsf_req;
- fsf_req->erp_action = erp_action;
+ return retval;
}
if (data)
- fsf_req->data = (unsigned long) data;
+ fsf_req->data = (unsigned long) data;
sbale = zfcp_qdio_sbale_req(fsf_req, fsf_req->sbal_curr, 0);
sbale[0].flags |= SBAL_FLAGS0_TYPE_READ;
sbale[1].flags |= SBAL_FLAGS_LAST_ENTRY;
- init_timer(timer);
- timer->function = zfcp_fsf_request_timeout_handler;
- timer->data = (unsigned long) adapter;
- timer->expires = ZFCP_FSF_REQUEST_TIMEOUT;
+ if (erp_action) {
+ erp_action->fsf_req = fsf_req;
+ fsf_req->erp_action = erp_action;
+ timer = &erp_action->timer;
+ } else {
+ timer = kmalloc(sizeof(struct timer_list), GFP_ATOMIC);
+ if (!timer) {
+ write_unlock_irqrestore(&adapter->request_queue.queue_lock,
+ lock_flags);
+ zfcp_fsf_req_free(fsf_req);
+ return -ENOMEM;
+ }
+ init_timer(timer);
+ timer->function = zfcp_fsf_request_timeout_handler;
+ timer->data = (unsigned long) adapter;
+ timer->expires = ZFCP_FSF_REQUEST_TIMEOUT;
+ }
retval = zfcp_fsf_req_send(fsf_req, timer);
if (retval) {
@@ -2233,23 +2250,22 @@ zfcp_fsf_exchange_port_data(struct zfcp_erp_action *erp_action,
zfcp_fsf_req_free(fsf_req);
if (erp_action)
erp_action->fsf_req = NULL;
+ else
+ kfree(timer);
write_unlock_irqrestore(&adapter->request_queue.queue_lock,
lock_flags);
- goto out;
+ return retval;
}
- ZFCP_LOG_DEBUG("Exchange Port Data request initiated (adapter %s)\n",
- zfcp_get_busid_by_adapter(adapter));
-
- write_unlock_irqrestore(&adapter->request_queue.queue_lock,
- lock_flags);
+ write_unlock_irqrestore(&adapter->request_queue.queue_lock, lock_flags);
- wait_event(fsf_req->completion_wq,
- fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
- del_timer_sync(timer);
- zfcp_fsf_req_free(fsf_req);
- out:
- kfree(timer);
+ if (!erp_action) {
+ wait_event(fsf_req->completion_wq,
+ fsf_req->status & ZFCP_STATUS_FSFREQ_COMPLETED);
+ del_timer_sync(timer);
+ zfcp_fsf_req_free(fsf_req);
+ kfree(timer);
+ }
return retval;
}
generated by cgit 1.2.3-korg (git 2.39.0) at 2024-05-19 05:21:01 +0000