[SCSI] zfcp: handle unsolicited status notification lost

Handle unsolicited adapter status that informs about loss of
previous unsolicited status notification(s).

Signed-off-by: Maxim Shchetynin <maxim@de.ibm.com>
Signed-off-by: Andreas Herrmann <aherrman@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 35 insertions, 0 deletions

diff --git a/drivers/s390/scsi/zfcp_fsf.c b/drivers/s390/scsi/zfcp_fsf.c
index 59587951c847..bf859c9982df 100644
--- a/drivers/s390/scsi/zfcp_fsf.c
+++ b/drivers/s390/scsi/zfcp_fsf.c
@@ -964,6 +964,40 @@ zfcp_fsf_status_read_handler(struct zfcp_fsf_req *fsf_req)
                                         | ZFCP_STATUS_COMMON_ERP_FAILED);
                 break;
 
+        case FSF_STATUS_READ_NOTIFICATION_LOST:
+                ZFCP_LOG_NORMAL("Unsolicited status notification(s) lost: "
+                                "adapter %s%s%s%s%s%s%s%s%s\n",
+                                zfcp_get_busid_by_adapter(adapter),
+                                (status_buffer->status_subtype &
+                                        FSF_STATUS_READ_SUB_INCOMING_ELS) ?
+                                        ", incoming ELS" : "",
+                                (status_buffer->status_subtype &
+                                        FSF_STATUS_READ_SUB_SENSE_DATA) ?
+                                        ", sense data" : "",
+                                (status_buffer->status_subtype &
+                                        FSF_STATUS_READ_SUB_LINK_STATUS) ?
+                                        ", link status change" : "",
+                                (status_buffer->status_subtype &
+                                        FSF_STATUS_READ_SUB_PORT_CLOSED) ?
+                                        ", port close" : "",
+                                (status_buffer->status_subtype &
+                                        FSF_STATUS_READ_SUB_BIT_ERROR_THRESHOLD) ?
+                                        ", bit error exception" : "",
+                                (status_buffer->status_subtype &
+                                        FSF_STATUS_READ_SUB_ACT_UPDATED) ?
+                                        ", ACT update" : "",
+                                (status_buffer->status_subtype &
+                                        FSF_STATUS_READ_SUB_ACT_HARDENED) ?
+                                        ", ACT hardening" : "",
+                                (status_buffer->status_subtype &
+                                        FSF_STATUS_READ_SUB_FEATURE_UPDATE_ALERT) ?
+                                        ", adapter feature change" : "");
+
+                if (status_buffer->status_subtype &
+                    FSF_STATUS_READ_SUB_ACT_UPDATED)
+                        zfcp_erp_adapter_access_changed(adapter);
+                break;
+
         case FSF_STATUS_READ_CFDC_UPDATED:
                 ZFCP_LOG_NORMAL("CFDC has been updated on the adapter %s\n",
                               zfcp_get_busid_by_adapter(adapter));
@@ -1954,6 +1988,7 @@ zfcp_fsf_exchange_config_data(struct zfcp_erp_action *erp_action)
         erp_action->fsf_req->qtcb->bottom.config.feature_selection =
                         FSF_FEATURE_CFDC |
                         FSF_FEATURE_LUN_SHARING |
+                        FSF_FEATURE_NOTIFICATION_LOST |
                         FSF_FEATURE_UPDATE_ALERT;
 
         /* start QDIO request for this FSF request */