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-rw-r--r--net/tipc/bearer.h77
1 files changed, 46 insertions, 31 deletions
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index d696f9e414e..d3eac56b8c2 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -43,32 +43,45 @@
#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
+ */
+
+#define TIPC_MEDIA_ADDR_SIZE 20
+#define TIPC_MEDIA_TYPE_OFFSET 3
+
+/*
* Identifiers of supported TIPC media types
*/
#define TIPC_MEDIA_TYPE_ETH 1
/*
- * Destination address structure used by TIPC bearers when sending messages
- *
- * IMPORTANT: The fields of this structure MUST be stored using the specified
- * byte order indicated below, as the structure is exchanged between nodes
- * as part of a link setup process.
+ * struct tipc_media_addr - destination address used by TIPC bearers
+ * @value: address info (format defined by media)
+ * @media_id: TIPC media type identifier
+ * @broadcast: non-zero if address is a broadcast address
*/
+
struct tipc_media_addr {
- __be32 type; /* bearer type (network byte order) */
- union {
- __u8 eth_addr[6]; /* 48 bit Ethernet addr (byte array) */
- } dev_addr;
+ u8 value[TIPC_MEDIA_ADDR_SIZE];
+ u8 media_id;
+ u8 broadcast;
};
struct tipc_bearer;
/**
- * struct media - TIPC media information available to internal users
+ * struct tipc_media - TIPC media information available to internal users
* @send_msg: routine which handles buffer transmission
* @enable_bearer: routine which enables a bearer
* @disable_bearer: routine which disables a bearer
- * @addr2str: routine which converts bearer's address to string form
+ * @addr2str: routine which converts media address to string
+ * @str2addr: routine which converts media address from string
+ * @addr2msg: routine which converts media address to protocol message area
+ * @msg2addr: routine which converts media address from protocol message area
* @bcast_addr: media address used in broadcasting
* @priority: default link (and bearer) priority
* @tolerance: default time (in ms) before declaring link failure
@@ -77,14 +90,16 @@ struct tipc_bearer;
* @name: media name
*/
-struct media {
+struct tipc_media {
int (*send_msg)(struct sk_buff *buf,
struct tipc_bearer *b_ptr,
struct tipc_media_addr *dest);
int (*enable_bearer)(struct tipc_bearer *b_ptr);
void (*disable_bearer)(struct tipc_bearer *b_ptr);
- char *(*addr2str)(struct tipc_media_addr *a,
- char *str_buf, int str_size);
+ int (*addr2str)(struct tipc_media_addr *a, char *str_buf, int str_size);
+ int (*str2addr)(struct tipc_media_addr *a, char *str_buf);
+ int (*addr2msg)(struct tipc_media_addr *a, char *msg_area);
+ int (*msg2addr)(struct tipc_media_addr *a, char *msg_area);
struct tipc_media_addr bcast_addr;
u32 priority;
u32 tolerance;
@@ -103,6 +118,8 @@ struct media {
* @name: bearer name (format = media:interface)
* @media: ptr to media structure associated with bearer
* @priority: default link priority for bearer
+ * @window: default window size for bearer
+ * @tolerance: default link tolerance for bearer
* @identity: array index of this bearer within TIPC bearer array
* @link_req: ptr to (optional) structure making periodic link setup requests
* @links: list of non-congested links associated with bearer
@@ -122,10 +139,12 @@ struct tipc_bearer {
struct tipc_media_addr addr; /* initalized by media */
char name[TIPC_MAX_BEARER_NAME];
spinlock_t lock;
- struct media *media;
+ struct tipc_media *media;
u32 priority;
+ u32 window;
+ u32 tolerance;
u32 identity;
- struct link_req *link_req;
+ struct tipc_link_req *link_req;
struct list_head links;
struct list_head cong_links;
int active;
@@ -133,28 +152,19 @@ struct tipc_bearer {
struct tipc_node_map nodes;
};
-struct bearer_name {
+struct tipc_bearer_names {
char media_name[TIPC_MAX_MEDIA_NAME];
char if_name[TIPC_MAX_IF_NAME];
};
-struct link;
+struct tipc_link;
extern struct tipc_bearer tipc_bearers[];
/*
* TIPC routines available to supported media types
*/
-int tipc_register_media(u32 media_type,
- char *media_name, int (*enable)(struct tipc_bearer *),
- void (*disable)(struct tipc_bearer *),
- int (*send_msg)(struct sk_buff *,
- struct tipc_bearer *, struct tipc_media_addr *),
- char *(*addr2str)(struct tipc_media_addr *a,
- char *str_buf, int str_size),
- struct tipc_media_addr *bcast_addr, const u32 bearer_priority,
- const u32 link_tolerance, /* [ms] */
- const u32 send_window_limit);
+int tipc_register_media(struct tipc_media *m_ptr);
void tipc_recv_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr);
@@ -170,16 +180,21 @@ int tipc_disable_bearer(const char *name);
int tipc_eth_media_start(void);
void tipc_eth_media_stop(void);
+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(struct print_buf *pb, struct tipc_media_addr *a);
struct sk_buff *tipc_media_get_names(void);
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_schedule(struct tipc_bearer *b_ptr, struct link *l_ptr);
+void tipc_bearer_schedule(struct tipc_bearer *b_ptr, struct tipc_link *l_ptr);
+struct tipc_bearer *tipc_bearer_find(const char *name);
struct tipc_bearer *tipc_bearer_find_interface(const char *if_name);
-int tipc_bearer_resolve_congestion(struct tipc_bearer *b_ptr, struct link *l_ptr);
-int tipc_bearer_congested(struct tipc_bearer *b_ptr, struct link *l_ptr);
+struct tipc_media *tipc_media_find(const char *name);
+int tipc_bearer_resolve_congestion(struct tipc_bearer *b_ptr,
+ struct tipc_link *l_ptr);
+int tipc_bearer_congested(struct tipc_bearer *b_ptr, struct tipc_link *l_ptr);
void tipc_bearer_stop(void);
void tipc_bearer_lock_push(struct tipc_bearer *b_ptr);