Merge tag 'v3.16-rc5' into timers/core

[sfrench/cifs-2.6.git] / net / tipc / bearer.h

diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index ba48145e871dd8dcd357a193b61e9234e5ad7f0d..78fccc49de23c1e6dc20c1799d629c4083f6f80c 100644 (file)
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -42,14 +42,12 @@
 #define MAX_BEARERS    2
 #define MAX_MEDIA      2
 
-/*
- * Identifiers associated with TIPC message header media address info
- *
- * - address info field is 20 bytes long
- * - media type identifier located at offset 3
- * - remaining bytes vary according to media type
+/* Identifiers associated with TIPC message header media address info
+ * - address info field is 32 bytes long
+ * - the field's actual content and length is defined per media
+ * - remaining unused bytes in the field are set to zero
  */
-#define TIPC_MEDIA_ADDR_SIZE   20
+#define TIPC_MEDIA_ADDR_SIZE   32
 #define TIPC_MEDIA_TYPE_OFFSET 3
 
 /*
@@ -77,9 +75,10 @@ struct tipc_bearer;
  * @send_msg: routine which handles buffer transmission
  * @enable_media: routine which enables a media
  * @disable_media: routine which disables a media
- * @addr2str: routine which converts media address to string
- * @addr2msg: routine which converts media address to protocol message area
- * @msg2addr: routine which converts media address from protocol message area
+ * @addr2str: convert media address format to string
+ * @addr2msg: convert from media addr format to discovery msg addr format
+ * @msg2addr: convert from discovery msg addr format to media addr format
+ * @raw2addr: convert from raw addr format to media addr format
  * @priority: default link (and bearer) priority
  * @tolerance: default time (in ms) before declaring link failure
  * @window: default window (in packets) before declaring link congestion
@@ -93,10 +92,16 @@ struct tipc_media {
                        struct tipc_media_addr *dest);
        int (*enable_media)(struct tipc_bearer *b_ptr);
        void (*disable_media)(struct tipc_bearer *b_ptr);
-       int (*addr2str)(struct tipc_media_addr *a, char *str_buf, int str_size);
-       int (*addr2msg)(struct tipc_media_addr *a, char *msg_area);
-       int (*msg2addr)(const struct tipc_bearer *b_ptr,
-                       struct tipc_media_addr *a, char *msg_area);
+       int (*addr2str)(struct tipc_media_addr *addr,
+                       char *strbuf,
+                       int bufsz);
+       int (*addr2msg)(char *msg, struct tipc_media_addr *addr);
+       int (*msg2addr)(struct tipc_bearer *b,
+                       struct tipc_media_addr *addr,
+                       char *msg);
+       int (*raw2addr)(struct tipc_bearer *b,
+                       struct tipc_media_addr *addr,
+                       char *raw);
        u32 priority;
        u32 tolerance;
        u32 window;
@@ -113,6 +118,7 @@ struct tipc_media {
  * @name: bearer name (format = media:interface)
  * @media: ptr to media structure associated with bearer
  * @bcast_addr: media address used in broadcasting
+ * @rcu: rcu struct for tipc_bearer
  * @priority: default link priority for bearer
  * @window: default window size for bearer
  * @tolerance: default link tolerance for bearer
@@ -127,12 +133,13 @@ struct tipc_media {
  * care of initializing all other fields.
  */
 struct tipc_bearer {
-       void *media_ptr;                        /* initalized by media */
+       void __rcu *media_ptr;                  /* initalized by media */
        u32 mtu;                                /* initalized by media */
        struct tipc_media_addr addr;            /* initalized by media */
        char name[TIPC_MAX_BEARER_NAME];
        struct tipc_media *media;
        struct tipc_media_addr bcast_addr;
+       struct rcu_head rcu;
        u32 priority;
        u32 window;
        u32 tolerance;
@@ -150,7 +157,7 @@ struct tipc_bearer_names {
 
 struct tipc_link;
 
-extern struct tipc_bearer *bearer_list[];
+extern struct tipc_bearer __rcu *bearer_list[];
 
 /*
  * TIPC routines available to supported media types
@@ -173,22 +180,20 @@ int tipc_media_set_priority(const char *name, u32 new_value);
 int tipc_media_set_window(const char *name, u32 new_value);
 void tipc_media_addr_printf(char *buf, int len, struct tipc_media_addr *a);
 struct sk_buff *tipc_media_get_names(void);
-void tipc_l2_media_addr_set(const struct tipc_bearer *b,
-                           struct tipc_media_addr *a, char *mac);
 int tipc_enable_l2_media(struct tipc_bearer *b);
 void tipc_disable_l2_media(struct tipc_bearer *b);
 int tipc_l2_send_msg(struct sk_buff *buf, struct tipc_bearer *b,
                     struct tipc_media_addr *dest);
 
 struct sk_buff *tipc_bearer_get_names(void);
-void tipc_bearer_add_dest(struct tipc_bearer *b_ptr, u32 dest);
-void tipc_bearer_remove_dest(struct tipc_bearer *b_ptr, u32 dest);
+void tipc_bearer_add_dest(u32 bearer_id, u32 dest);
+void tipc_bearer_remove_dest(u32 bearer_id, u32 dest);
 struct tipc_bearer *tipc_bearer_find(const char *name);
 struct tipc_media *tipc_media_find(const char *name);
 int tipc_bearer_setup(void);
 void tipc_bearer_cleanup(void);
 void tipc_bearer_stop(void);
-void tipc_bearer_send(struct tipc_bearer *b, struct sk_buff *buf,
+void tipc_bearer_send(u32 bearer_id, struct sk_buff *buf,
                      struct tipc_media_addr *dest);
 
 #endif /* _TIPC_BEARER_H */