[SCSI] bfa: Changes to support FDMI Driver Parameter

 Added a FCS function to be called during driver init, to set the FDMI
 Driver parameter.

fdmi.c: Created a disabled state when fdmi is disabled.

bfad.c:
  * Added fdmi_enable driver parameter.
  * Added support to call bfa_fcs_set_fdmi_param() to initialize fcs
    fdmi setting.

Signed-off-by: Krishna Gudipati <kgudipat@brocade.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

4 files changed, 43 insertions, 1 deletions

diff --git a/drivers/scsi/bfa/bfa_fcs.c b/drivers/scsi/bfa/bfa_fcs.c
index 7cb39a306ea9..50120c285fff 100644
--- a/drivers/scsi/bfa/bfa_fcs.c
+++ b/drivers/scsi/bfa/bfa_fcs.c
@@ -127,6 +127,23 @@ bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs,
 }
 
 /**
+ *      @brief
+ *              FCS FDMI Driver Parameter Initialization
+ *
+ *      @param[in]              fcs             FCS instance
+ *      @param[in]              fdmi_enable     TRUE/FALSE
+ *
+ *      @return None
+ */
+void
+bfa_fcs_set_fdmi_param(struct bfa_fcs_s *fcs, bfa_boolean_t fdmi_enable)
+{
+
+        fcs->fdmi_enabled = fdmi_enable;
+
+}
+
+/**
  *              FCS instance cleanup and exit.
  *
  *      param[in]               fcs                     FCS instance
diff --git a/drivers/scsi/bfa/bfad.c b/drivers/scsi/bfa/bfad.c
index b52b773d49d9..8e2b2a26cb74 100644
--- a/drivers/scsi/bfa/bfad.c
+++ b/drivers/scsi/bfa/bfad.c
@@ -53,6 +53,7 @@ static int      log_level = BFA_LOG_WARNING;
 static int      ioc_auto_recover = BFA_TRUE;
 static int      ipfc_enable = BFA_FALSE;
 static int      ipfc_mtu = -1;
+static int      fdmi_enable = BFA_TRUE;
 int             bfa_lun_queue_depth = BFAD_LUN_QUEUE_DEPTH;
 int             bfa_linkup_delay = -1;
 
@@ -74,6 +75,7 @@ module_param(log_level, int, S_IRUGO | S_IWUSR);
 module_param(ioc_auto_recover, int, S_IRUGO | S_IWUSR);
 module_param(ipfc_enable, int, S_IRUGO | S_IWUSR);
 module_param(ipfc_mtu, int, S_IRUGO | S_IWUSR);
+module_param(fdmi_enable, int, S_IRUGO | S_IWUSR);
 module_param(bfa_linkup_delay, int, S_IRUGO | S_IWUSR);
 
 /*
@@ -748,6 +750,7 @@ bfad_drv_init(struct bfad_s *bfad)
         bfa_fcs_aen_init(&bfad->bfa_fcs, bfad->aen);
         bfa_fcs_init(&bfad->bfa_fcs, &bfad->bfa, bfad, BFA_FALSE);
         bfa_fcs_driver_info_init(&bfad->bfa_fcs, &driver_info);
+        bfa_fcs_set_fdmi_param(&bfad->bfa_fcs, fdmi_enable);
         spin_unlock_irqrestore(&bfad->bfad_lock, flags);
 
         bfad->bfad_flags |= BFAD_DRV_INIT_DONE;
diff --git a/drivers/scsi/bfa/fdmi.c b/drivers/scsi/bfa/fdmi.c
index df2a1e54e16b..d76d9220b6e6 100644
--- a/drivers/scsi/bfa/fdmi.c
+++ b/drivers/scsi/bfa/fdmi.c
@@ -116,6 +116,9 @@ static void     bfa_fcs_port_fdmi_sm_rpa_retry(struct bfa_fcs_port_fdmi_s *fdmi,
                         enum port_fdmi_event event);
 static void     bfa_fcs_port_fdmi_sm_online(struct bfa_fcs_port_fdmi_s *fdmi,
                         enum port_fdmi_event event);
+static void     bfa_fcs_port_fdmi_sm_disabled(struct bfa_fcs_port_fdmi_s *fdmi,
+                        enum port_fdmi_event event);
+
 /**
  *              Start in offline state - awaiting MS to send start.
  */
@@ -479,6 +482,20 @@ bfa_fcs_port_fdmi_sm_online(struct bfa_fcs_port_fdmi_s *fdmi,
         }
 }
 
+/**
+ *  FDMI is disabled state.
+ */
+static void
+bfa_fcs_port_fdmi_sm_disabled(struct bfa_fcs_port_fdmi_s *fdmi,
+                                enum port_fdmi_event event)
+{
+        struct bfa_fcs_port_s *port = fdmi->ms->port;
+
+        bfa_trc(port->fcs, port->port_cfg.pwwn);
+        bfa_trc(port->fcs, event);
+
+        /* No op State. It can only be enabled at Driver Init. */
+}
 
 /**
 *   RHBA : Register HBA Attributes.
@@ -1201,7 +1218,10 @@ bfa_fcs_port_fdmi_init(struct bfa_fcs_port_ms_s *ms)
         struct bfa_fcs_port_fdmi_s *fdmi = &ms->fdmi;
 
         fdmi->ms = ms;
-        bfa_sm_set_state(fdmi, bfa_fcs_port_fdmi_sm_offline);
+        if (ms->port->fcs->fdmi_enabled)
+                bfa_sm_set_state(fdmi, bfa_fcs_port_fdmi_sm_offline);
+        else
+                bfa_sm_set_state(fdmi, bfa_fcs_port_fdmi_sm_disabled);
 }
 
 void
diff --git a/drivers/scsi/bfa/include/fcs/bfa_fcs.h b/drivers/scsi/bfa/include/fcs/bfa_fcs.h
index 627669c65546..0396ec460532 100644
--- a/drivers/scsi/bfa/include/fcs/bfa_fcs.h
+++ b/drivers/scsi/bfa/include/fcs/bfa_fcs.h
@@ -49,6 +49,7 @@ struct bfa_fcs_s {
         struct bfa_trc_mod_s  *trcmod;  /*  tracing module */
         struct bfa_aen_s      *aen;     /*  aen component */
         bfa_boolean_t   vf_enabled;     /*  VF mode is enabled */
+        bfa_boolean_t   fdmi_enabled;   /*!< FDMI is enabled */
         bfa_boolean_t min_cfg;          /* min cfg enabled/disabled */
         u16        port_vfid;   /*  port default VF ID */
         struct bfa_fcs_driver_info_s driver_info;
@@ -64,6 +65,7 @@ void bfa_fcs_init(struct bfa_fcs_s *fcs, struct bfa_s *bfa, struct bfad_s *bfad,
                         bfa_boolean_t min_cfg);
 void bfa_fcs_driver_info_init(struct bfa_fcs_s *fcs,
                         struct bfa_fcs_driver_info_s *driver_info);
+void bfa_fcs_set_fdmi_param(struct bfa_fcs_s *fcs, bfa_boolean_t fdmi_enable);
 void bfa_fcs_exit(struct bfa_fcs_s *fcs);
 void bfa_fcs_trc_init(struct bfa_fcs_s *fcs, struct bfa_trc_mod_s *trcmod);
 void bfa_fcs_log_init(struct bfa_fcs_s *fcs, struct bfa_log_mod_s *logmod);