[SCSI] libfc: introduce LLD event callback

This patch enables LLD to listen to rport events and perform LLD
specific operations based on the rport event. This patch also stores
sp_features and spp_type in rdata for further reference by LLD.

Signed-off-by: Bhanu Prakash Gollapudi <bprakash@broadcom.com>
Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@suse.de>

1 files changed, 15 insertions, 0 deletions

diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 6d64e44bc3bf..24193c1b0da0 100644
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -158,6 +158,7 @@ struct fc_rport_libfc_priv {
         #define FC_RP_FLAGS_REC_SUPPORTED       (1 << 0)
         #define FC_RP_FLAGS_RETRY               (1 << 1)
         #define FC_RP_STARTED                   (1 << 2)
+        #define FC_RP_FLAGS_CONF_REQ            (1 << 3)
         unsigned int               e_d_tov;
         unsigned int               r_a_tov;
 };
@@ -207,6 +208,11 @@ struct fc_rport_priv {
         u32                         supported_classes;
         u16                         prli_count;
         struct rcu_head             rcu;
+        u16                         sp_features;
+        u8                          spp_type;
+        void                        (*lld_event_callback)(struct fc_lport *,
+                                                      struct fc_rport_priv *,
+                                                      enum fc_rport_event);
 };
 
 /**
@@ -677,6 +683,15 @@ struct libfc_function_template {
         void (*rport_destroy)(struct kref *);
 
         /*
+         * Callback routine after the remote port is logged in
+         *
+         * STATUS: OPTIONAL
+         */
+        void (*rport_event_callback)(struct fc_lport *,
+                                     struct fc_rport_priv *,
+                                     enum fc_rport_event);
+
+        /*
          * Send a fcp cmd from fsp pkt.
          * Called with the SCSI host lock unlocked and irqs disabled.
          *