[SCSI] libfc: Cleanup libfc_function_template comments

Made the comments more like the comments for struct scsi_host_template.

Signed-off-by: Robert Love <robert.w.love@intel.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>

diff --git a/include/scsi/libfc.h b/include/scsi/libfc.h
index 37df48e..282829c 100644 (file)
--- a/include/scsi/libfc.h
+++ b/include/scsi/libfc.h
@@ -336,31 +336,17 @@ struct fc_exch {
 
 struct libfc_function_template {
 
-       /**
-        * Mandatory Fields
-        *
-        * These handlers must be implemented by the LLD.
-        */
-
        /*
         * Interface to send a FC frame
-        */
-       int (*frame_send)(struct fc_lport *lp, struct fc_frame *fp);
-
-       /**
-        * Optional Fields
         *
-        * The LLD may choose to implement any of the following handlers.
-        * If LLD doesn't specify hander and leaves its pointer NULL then
-        * the default libfc function will be used for that handler.
-        */
-
-       /**
-        * ELS/CT interfaces
+        * STATUS: REQUIRED
         */
+       int (*frame_send)(struct fc_lport *lp, struct fc_frame *fp);
 
        /*
-        * elsct_send - sends ELS/CT frame
+        * Interface to send ELS/CT frames
+        *
+        * STATUS: OPTIONAL
         */
        struct fc_seq *(*elsct_send)(struct fc_lport *lport,
                                     struct fc_rport *rport,
@@ -370,9 +356,6 @@ struct libfc_function_template {
                                             struct fc_frame *fp,
                                             void *arg),
                                     void *arg, u32 timer_msec);
-       /**
-        * Exhance Manager interfaces
-        */
 
        /*
         * Send the FC frame payload using a new exchange and sequence.
@@ -404,6 +387,8 @@ struct libfc_function_template {
         * timer_msec argument is specified. The timer is canceled when
         * it fires or when the exchange is done. The exchange timeout handler
         * is registered by EM layer.
+        *
+        * STATUS: OPTIONAL
         */
        struct fc_seq *(*exch_seq_send)(struct fc_lport *lp,
                                        struct fc_frame *fp,
@@ -415,14 +400,18 @@ struct libfc_function_template {
                                        void *arg, unsigned int timer_msec);
 
        /*
-        * send a frame using existing sequence and exchange.
+        * Send a frame using an existing sequence and exchange.
+        *
+        * STATUS: OPTIONAL
         */
        int (*seq_send)(struct fc_lport *lp, struct fc_seq *sp,
                        struct fc_frame *fp);
 
        /*
-        * Send ELS response using mainly infomation
-        * in exchange and sequence in EM layer.
+        * Send an ELS response using infomation from a previous
+        * exchange and sequence.
+        *
+        * STATUS: OPTIONAL
         */
        void (*seq_els_rsp_send)(struct fc_seq *sp, enum fc_els_cmd els_cmd,
                                 struct fc_seq_els_data *els_data);
@@ -434,6 +423,8 @@ struct libfc_function_template {
         * A timer_msec can be specified for abort timeout, if non-zero
         * timer_msec value is specified then exchange resp handler
         * will be called with timeout error if no response to abort.
+        *
+        * STATUS: OPTIONAL
         */
        int (*seq_exch_abort)(const struct fc_seq *req_sp,
                              unsigned int timer_msec);
@@ -441,6 +432,8 @@ struct libfc_function_template {
        /*
         * Indicate that an exchange/sequence tuple is complete and the memory
         * allocated for the related objects may be freed.
+        *
+        * STATUS: OPTIONAL
         */
        void (*exch_done)(struct fc_seq *sp);
 
@@ -448,6 +441,8 @@ struct libfc_function_template {
         * Assigns a EM and a free XID for an new exchange and then
         * allocates a new exchange and sequence pair.
         * The fp can be used to determine free XID.
+        *
+        * STATUS: OPTIONAL
         */
        struct fc_exch *(*exch_get)(struct fc_lport *lp, struct fc_frame *fp);
 
@@ -455,12 +450,16 @@ struct libfc_function_template {
         * Release previously assigned XID by exch_get API.
         * The LLD may implement this if XID is assigned by LLD
         * in exch_get().
+        *
+        * STATUS: OPTIONAL
         */
        void (*exch_put)(struct fc_lport *lp, struct fc_exch_mgr *mp,
                         u16 ex_id);
 
        /*
         * Start a new sequence on the same exchange/sequence tuple.
+        *
+        * STATUS: OPTIONAL
         */
        struct fc_seq *(*seq_start_next)(struct fc_seq *sp);
 
@@ -468,26 +467,33 @@ struct libfc_function_template {
         * Reset an exchange manager, completing all sequences and exchanges.
         * If s_id is non-zero, reset only exchanges originating from that FID.
         * If d_id is non-zero, reset only exchanges sending to that FID.
+        *
+        * STATUS: OPTIONAL
         */
        void (*exch_mgr_reset)(struct fc_lport *,
                               u32 s_id, u32 d_id);
 
-       void (*rport_flush_queue)(void);
-       /**
-        * Local Port interfaces
+       /*
+        * Flush the rport work queue. Generally used before shutdown.
+        *
+        * STATUS: OPTIONAL
         */
+       void (*rport_flush_queue)(void);
 
        /*
-        * Receive a frame to a local port.
+        * Receive a frame for a local port.
+        *
+        * STATUS: OPTIONAL
         */
        void (*lport_recv)(struct fc_lport *lp, struct fc_seq *sp,
                           struct fc_frame *fp);
 
-       int (*lport_reset)(struct fc_lport *);
-
-       /**
-        * Remote Port interfaces
+       /*
+        * Reset the local port.
+        *
+        * STATUS: OPTIONAL
         */
+       int (*lport_reset)(struct fc_lport *);
 
        /*
         * Create a remote port
@@ -502,26 +508,33 @@ struct libfc_function_template {
         * - PLOGI
         * - PRLI
         * - RTV
+        *
+        * STATUS: OPTIONAL
         */
        int (*rport_login)(struct fc_rport *rport);
 
        /*
         * Logoff, and remove the rport from the transport if
         * it had been added. This will send a LOGO to the target.
+        *
+        * STATUS: OPTIONAL
         */
        int (*rport_logoff)(struct fc_rport *rport);
 
        /*
         * Recieve a request from a remote port.
+        *
+        * STATUS: OPTIONAL
         */
        void (*rport_recv_req)(struct fc_seq *, struct fc_frame *,
                               struct fc_rport *);
 
-       struct fc_rport *(*rport_lookup)(const struct fc_lport *, u32);
-
-       /**
-        * FCP interfaces
+       /*
+        * lookup an rport by it's port ID.
+        *
+        * STATUS: OPTIONAL
         */
+       struct fc_rport *(*rport_lookup)(const struct fc_lport *, u32);
 
        /*
         * Send a fcp cmd from fsp pkt.
@@ -529,30 +542,38 @@ struct libfc_function_template {
         *
         * The resp handler is called when FCP_RSP received.
         *
+        * STATUS: OPTIONAL
         */
        int (*fcp_cmd_send)(struct fc_lport *lp, struct fc_fcp_pkt *fsp,
                            void (*resp)(struct fc_seq *, struct fc_frame *fp,
                                         void *arg));
 
        /*
-        * Used at least durring linkdown and reset
+        * Cleanup the FCP layer, used durring link down and reset
+        *
+        * STATUS: OPTIONAL
         */
        void (*fcp_cleanup)(struct fc_lport *lp);
 
        /*
         * Abort all I/O on a local port
+        *
+        * STATUS: OPTIONAL
         */
        void (*fcp_abort_io)(struct fc_lport *lp);
 
-       /**
-        * Discovery interfaces
+       /*
+        * Receive a request for the discovery layer.
+        *
+        * STATUS: OPTIONAL
         */
-
        void (*disc_recv_req)(struct fc_seq *,
                              struct fc_frame *, struct fc_lport *);
 
        /*
         * Start discovery for a local port.
+        *
+        * STATUS: OPTIONAL
         */
        void (*disc_start)(void (*disc_callback)(struct fc_lport *,
                                                 enum fc_disc_event),
@@ -561,6 +582,8 @@ struct libfc_function_template {
        /*
         * Stop discovery for a given lport. This will remove
         * all discovered rports
+        *
+        * STATUS: OPTIONAL
         */
        void (*disc_stop) (struct fc_lport *);
 
@@ -568,6 +591,8 @@ struct libfc_function_template {
         * Stop discovery for a given lport. This will block
         * until all discovered rports are deleted from the
         * FC transport class
+        *
+        * STATUS: OPTIONAL
         */
        void (*disc_stop_final) (struct fc_lport *);
 };