Merge branch 'mpi-master' into wip-k-fmlpwip-k-fmlp

Conflicts:
	litmus/sched_cedf.c

1 files changed, 79 insertions, 23 deletions

diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h
index a850b389663e..31d6172b20fd 100644
--- a/net/tipc/bearer.h
+++ b/net/tipc/bearer.h
@@ -2,7 +2,7 @@
  * net/tipc/bearer.h: Include file for TIPC bearer code
  *
  * Copyright (c) 1996-2006, Ericsson AB
- * Copyright (c) 2005, Wind River Systems
+ * Copyright (c) 2005, 2010-2011, Wind River Systems
  * All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
@@ -37,12 +37,31 @@
 #ifndef _TIPC_BEARER_H
 #define _TIPC_BEARER_H
 
-#include "core.h"
 #include "bcast.h"
 
 #define MAX_BEARERS 8
 #define MAX_MEDIA 4
 
+/*
+ * 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 {
+        __be32  type;                   /* bearer type (network byte order) */
+        union {
+                __u8   eth_addr[6];     /* 48 bit Ethernet addr (byte array) */
+        } dev_addr;
+};
+
+struct tipc_bearer;
 
 /**
  * struct media - TIPC media information available to internal users
@@ -51,11 +70,10 @@
  * @disable_bearer: routine which disables a bearer
  * @addr2str: routine which converts bearer's address to string form
  * @bcast_addr: media address used in broadcasting
- * @bcast: non-zero if media supports broadcasting [currently mandatory]
  * @priority: default link (and bearer) priority
  * @tolerance: default time (in ms) before declaring link failure
  * @window: default window (in packets) before declaring link congestion
- * @type_id: TIPC media identifier [defined in tipc_bearer.h]
+ * @type_id: TIPC media identifier
  * @name: media name
  */
 
@@ -68,7 +86,6 @@ struct media {
         char *(*addr2str)(struct tipc_media_addr *a,
                           char *str_buf, int str_size);
         struct tipc_media_addr bcast_addr;
-        int bcast;
         u32 priority;
         u32 tolerance;
         u32 window;
@@ -77,11 +94,15 @@ struct media {
 };
 
 /**
- * struct bearer - TIPC bearer information available to internal users
- * @publ: bearer information available to privileged users
+ * struct tipc_bearer - TIPC bearer structure
+ * @usr_handle: pointer to additional media-specific information about bearer
+ * @mtu: max packet size bearer can support
+ * @blocked: non-zero if bearer is blocked
+ * @lock: spinlock for controlling access to bearer
+ * @addr: media-specific address associated with bearer
+ * @name: bearer name (format = media:interface)
  * @media: ptr to media structure associated with bearer
  * @priority: default link priority for bearer
- * @detect_scope: network address mask used during automatic link creation
  * @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
@@ -90,13 +111,20 @@ struct media {
  * @active: non-zero if bearer structure is represents a bearer
  * @net_plane: network plane ('A' through 'H') currently associated with bearer
  * @nodes: indicates which nodes in cluster can be reached through bearer
+ *
+ * Note: media-specific code is responsible for initialization of the fields
+ * indicated below when a bearer is enabled; TIPC's generic bearer code takes
+ * care of initializing all other fields.
  */
-
-struct bearer {
-        struct tipc_bearer publ;
+struct tipc_bearer {
+        void *usr_handle;                       /* initalized by media */
+        u32 mtu;                                /* initalized by media */
+        int blocked;                            /* initalized by media */
+        struct tipc_media_addr addr;            /* initalized by media */
+        char name[TIPC_MAX_BEARER_NAME];
+        spinlock_t lock;
         struct media *media;
         u32 priority;
-        u32 detect_scope;
         u32 identity;
         struct link_req *link_req;
         struct list_head links;
@@ -114,21 +142,48 @@ struct bearer_name {
 
 struct link;
 
-extern struct bearer tipc_bearers[];
+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);
+
+void tipc_recv_msg(struct sk_buff *buf, struct tipc_bearer *tb_ptr);
+
+int  tipc_block_bearer(const char *name);
+void tipc_continue(struct tipc_bearer *tb_ptr);
+
+int tipc_enable_bearer(const char *bearer_name, u32 disc_domain, u32 priority);
+int tipc_disable_bearer(const char *name);
+
+/*
+ * Routines made available to TIPC by supported media types
+ */
+int  tipc_eth_media_start(void);
+void tipc_eth_media_stop(void);
 
 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 bearer *b_ptr, u32 dest);
-void tipc_bearer_remove_dest(struct bearer *b_ptr, u32 dest);
-void tipc_bearer_schedule(struct bearer *b_ptr, struct link *l_ptr);
-struct bearer *tipc_bearer_find_interface(const char *if_name);
-int tipc_bearer_resolve_congestion(struct bearer *b_ptr, struct link *l_ptr);
-int tipc_bearer_congested(struct bearer *b_ptr, struct link *l_ptr);
-int tipc_bearer_init(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);
+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);
 void tipc_bearer_stop(void);
-void tipc_bearer_lock_push(struct bearer *b_ptr);
+void tipc_bearer_lock_push(struct tipc_bearer *b_ptr);
 
 
 /**
@@ -149,10 +204,11 @@ void tipc_bearer_lock_push(struct bearer *b_ptr);
  * and let TIPC's link code deal with the undelivered message.
  */
 
-static inline int tipc_bearer_send(struct bearer *b_ptr, struct sk_buff *buf,
+static inline int tipc_bearer_send(struct tipc_bearer *b_ptr,
+                                   struct sk_buff *buf,
                                    struct tipc_media_addr *dest)
 {
-        return !b_ptr->media->send_msg(buf, &b_ptr->publ, dest);
+        return !b_ptr->media->send_msg(buf, b_ptr, dest);
 }
 
 #endif  /* _TIPC_BEARER_H */