1 files changed, 133 insertions, 0 deletions

diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index 3f71d504e39..671a1a227f9 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -119,6 +119,18 @@ bfa_fcs_update_cfg(struct bfa_fcs_s *fcs)
 }
 
 /*
+ * Stop FCS operations.
+ */
+void
+bfa_fcs_stop(struct bfa_fcs_s *fcs)
+{
+        bfa_wc_init(&fcs->wc, bfa_fcs_exit_comp, fcs);
+        bfa_wc_up(&fcs->wc);
+        bfa_fcs_fabric_modstop(fcs);
+        bfa_wc_wait(&fcs->wc);
+}
+
+/*
  * fcs pbc vport initialization
  */
 void
@@ -213,6 +225,8 @@ static void bfa_fcs_fabric_notify_offline(struct bfa_fcs_fabric_s *fabric);
 static void bfa_fcs_fabric_delay(void *cbarg);
 static void bfa_fcs_fabric_delete(struct bfa_fcs_fabric_s *fabric);
 static void bfa_fcs_fabric_delete_comp(void *cbarg);
+static void bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric);
+static void bfa_fcs_fabric_stop_comp(void *cbarg);
 static void bfa_fcs_fabric_process_uf(struct bfa_fcs_fabric_s *fabric,
                                       struct fchs_s *fchs, u16 len);
 static void bfa_fcs_fabric_process_flogi(struct bfa_fcs_fabric_s *fabric,
@@ -250,6 +264,10 @@ static void	bfa_fcs_fabric_sm_isolated(struct bfa_fcs_fabric_s *fabric,
                                            enum bfa_fcs_fabric_event event);
 static void     bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
                                            enum bfa_fcs_fabric_event event);
+static void     bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric,
+                                           enum bfa_fcs_fabric_event event);
+static void     bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric,
+                                          enum bfa_fcs_fabric_event event);
 /*
  *   Beginning state before fabric creation.
  */
@@ -334,6 +352,11 @@ bfa_fcs_fabric_sm_linkdown(struct bfa_fcs_fabric_s *fabric,
                 bfa_fcs_fabric_delete(fabric);
                 break;
 
+        case BFA_FCS_FABRIC_SM_STOP:
+                bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
+                bfa_fcs_fabric_stop(fabric);
+                break;
+
         default:
                 bfa_sm_fault(fabric->fcs, event);
         }
@@ -585,6 +608,11 @@ bfa_fcs_fabric_sm_online(struct bfa_fcs_fabric_s *fabric,
                 bfa_fcs_fabric_delete(fabric);
                 break;
 
+        case BFA_FCS_FABRIC_SM_STOP:
+                bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_stopping);
+                bfa_fcs_fabric_stop(fabric);
+                break;
+
         case BFA_FCS_FABRIC_SM_AUTH_FAILED:
                 bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_auth_failed);
                 bfa_sm_send_event(fabric->lps, BFA_LPS_SM_OFFLINE);
@@ -682,7 +710,62 @@ bfa_fcs_fabric_sm_deleting(struct bfa_fcs_fabric_s *fabric,
         }
 }
 
+/*
+ * Fabric is being stopped, awaiting vport stop completions.
+ */
+static void
+bfa_fcs_fabric_sm_stopping(struct bfa_fcs_fabric_s *fabric,
+                           enum bfa_fcs_fabric_event event)
+{
+        bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
+        bfa_trc(fabric->fcs, event);
+
+        switch (event) {
+        case BFA_FCS_FABRIC_SM_STOPCOMP:
+                bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
+                bfa_sm_send_event(fabric->lps, BFA_LPS_SM_LOGOUT);
+                break;
+
+        case BFA_FCS_FABRIC_SM_LINK_UP:
+                break;
+
+        case BFA_FCS_FABRIC_SM_LINK_DOWN:
+                bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_cleanup);
+                break;
+
+        default:
+                bfa_sm_fault(fabric->fcs, event);
+        }
+}
+
+/*
+ * Fabric is being stopped, cleanup without FLOGO
+ */
+static void
+bfa_fcs_fabric_sm_cleanup(struct bfa_fcs_fabric_s *fabric,
+                          enum bfa_fcs_fabric_event event)
+{
+        bfa_trc(fabric->fcs, fabric->bport.port_cfg.pwwn);
+        bfa_trc(fabric->fcs, event);
+
+        switch (event) {
+        case BFA_FCS_FABRIC_SM_STOPCOMP:
+        case BFA_FCS_FABRIC_SM_LOGOCOMP:
+                bfa_sm_set_state(fabric, bfa_fcs_fabric_sm_created);
+                bfa_wc_down(&(fabric->fcs)->wc);
+                break;
+
+        case BFA_FCS_FABRIC_SM_LINK_DOWN:
+                /*
+                 * Ignore - can get this event if we get notified about IOC down
+                 * before the fabric completion callbk is done.
+                 */
+                break;
 
+        default:
+                bfa_sm_fault(fabric->fcs, event);
+        }
+}
 
 /*
  *  fcs_fabric_private fabric private functions
@@ -919,6 +1002,28 @@ bfa_fcs_fabric_delay(void *cbarg)
 }
 
 /*
+ * Stop all vports and wait for vport stop completions.
+ */
+static void
+bfa_fcs_fabric_stop(struct bfa_fcs_fabric_s *fabric)
+{
+        struct bfa_fcs_vport_s *vport;
+        struct list_head        *qe, *qen;
+
+        bfa_wc_init(&fabric->stop_wc, bfa_fcs_fabric_stop_comp, fabric);
+
+        list_for_each_safe(qe, qen, &fabric->vport_q) {
+                vport = (struct bfa_fcs_vport_s *) qe;
+                bfa_wc_up(&fabric->stop_wc);
+                bfa_fcs_vport_fcs_stop(vport);
+        }
+
+        bfa_wc_up(&fabric->stop_wc);
+        bfa_fcs_lport_stop(&fabric->bport);
+        bfa_wc_wait(&fabric->stop_wc);
+}
+
+/*
  * Computes operating BB_SCN value
  */
 static u8
@@ -978,6 +1083,14 @@ bfa_fcs_fabric_delete_comp(void *cbarg)
         bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_DELCOMP);
 }
 
+static void
+bfa_fcs_fabric_stop_comp(void *cbarg)
+{
+        struct bfa_fcs_fabric_s *fabric = cbarg;
+
+        bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOPCOMP);
+}
+
 /*
  *  fcs_fabric_public fabric public functions
  */
@@ -1039,6 +1152,19 @@ bfa_fcs_fabric_modexit(struct bfa_fcs_s *fcs)
 }
 
 /*
+ * Fabric module stop -- stop FCS actions
+ */
+void
+bfa_fcs_fabric_modstop(struct bfa_fcs_s *fcs)
+{
+        struct bfa_fcs_fabric_s *fabric;
+
+        bfa_trc(fcs, 0);
+        fabric = &fcs->fabric;
+        bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_STOP);
+}
+
+/*
  * Fabric module start -- kick starts FCS actions
  */
 void
@@ -1387,6 +1513,13 @@ bfa_fcs_fabric_set_fabric_name(struct bfa_fcs_fabric_s *fabric,
         }
 }
 
+void
+bfa_cb_lps_flogo_comp(void *bfad, void *uarg)
+{
+        struct bfa_fcs_fabric_s *fabric = uarg;
+        bfa_sm_send_event(fabric, BFA_FCS_FABRIC_SM_LOGOCOMP);
+}
+
 /*
  *      Returns FCS vf structure for a given vf_id.
  *