diff options
Diffstat (limited to 'net/tipc/bearer.h')
-rw-r--r-- | net/tipc/bearer.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/net/tipc/bearer.h b/net/tipc/bearer.h index 5cad243ee8fc..b7302b012624 100644 --- a/net/tipc/bearer.h +++ b/net/tipc/bearer.h | |||
@@ -38,6 +38,7 @@ | |||
38 | #define _TIPC_BEARER_H | 38 | #define _TIPC_BEARER_H |
39 | 39 | ||
40 | #include "netlink.h" | 40 | #include "netlink.h" |
41 | #include "msg.h" | ||
41 | #include <net/genetlink.h> | 42 | #include <net/genetlink.h> |
42 | 43 | ||
43 | #define MAX_BEARERS 2 | 44 | #define MAX_BEARERS 2 |
@@ -61,6 +62,9 @@ | |||
61 | #define TIPC_MEDIA_TYPE_IB 2 | 62 | #define TIPC_MEDIA_TYPE_IB 2 |
62 | #define TIPC_MEDIA_TYPE_UDP 3 | 63 | #define TIPC_MEDIA_TYPE_UDP 3 |
63 | 64 | ||
65 | /* minimum bearer MTU */ | ||
66 | #define TIPC_MIN_BEARER_MTU (MAX_H_SIZE + INT_H_SIZE) | ||
67 | |||
64 | /** | 68 | /** |
65 | * struct tipc_node_map - set of node identifiers | 69 | * struct tipc_node_map - set of node identifiers |
66 | * @count: # of nodes in set | 70 | * @count: # of nodes in set |
@@ -218,4 +222,13 @@ void tipc_bearer_stop(struct net *net); | |||
218 | void tipc_bearer_send(struct net *net, u32 bearer_id, struct sk_buff *buf, | 222 | void tipc_bearer_send(struct net *net, u32 bearer_id, struct sk_buff *buf, |
219 | struct tipc_media_addr *dest); | 223 | struct tipc_media_addr *dest); |
220 | 224 | ||
225 | /* check if device MTU is too low for tipc headers */ | ||
226 | static inline bool tipc_mtu_bad(struct net_device *dev, unsigned int reserve) | ||
227 | { | ||
228 | if (dev->mtu >= TIPC_MIN_BEARER_MTU + reserve) | ||
229 | return false; | ||
230 | netdev_warn(dev, "MTU too low for tipc bearer\n"); | ||
231 | return true; | ||
232 | } | ||
233 | |||
221 | #endif /* _TIPC_BEARER_H */ | 234 | #endif /* _TIPC_BEARER_H */ |