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| author | Jon Paul Maloy <jon.maloy@ericsson.com> | 2015-10-22 08:51:41 -0400 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-10-24 06:56:37 -0700 |
| commit | 5266698661401afc5e4a1a521cf9ba10724d10dd (patch) | |
| tree | cf3d466a2d9982f403a689e8a0c819c7e3693bde /net/tipc/bcast.h | |
| parent | fd556f209af53b9cdc45df8c467feb235376c4df (diff) | |
| download | linux-5266698661401afc5e4a1a521cf9ba10724d10dd.tar.bz2 | |
tipc: let broadcast packet reception use new link receive function
The code path for receiving broadcast packets is currently distinct
from the unicast path. This leads to unnecessary code and data
duplication, something that can be avoided with some effort.
We now introduce separate per-peer tipc_link instances for handling
broadcast packet reception. Each receive link keeps a pointer to the
common, single, broadcast link instance, and can hence handle release
and retransmission of send buffers as if they belonged to the own
instance.
Furthermore, we let each unicast link instance keep a reference to both
the pertaining broadcast receive link, and to the common send link.
This makes it possible for the unicast links to easily access data for
broadcast link synchronization, as well as for carrying acknowledges for
received broadcast packets.
Signed-off-by: Jon Maloy <jon.maloy@ericsson.com>
Reviewed-by: Ying Xue <ying.xue@windriver.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/tipc/bcast.h')
| -rw-r--r-- | net/tipc/bcast.h | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/net/tipc/bcast.h b/net/tipc/bcast.h index a378fdde9b7a..568a57cd89e6 100644 --- a/net/tipc/bcast.h +++ b/net/tipc/bcast.h @@ -47,8 +47,11 @@ struct tipc_node_map; int tipc_bcast_init(struct net *net); void tipc_bcast_reinit(struct net *net); void tipc_bcast_stop(struct net *net); -void tipc_bclink_add_node(struct net *net, u32 addr); -void tipc_bclink_remove_node(struct net *net, u32 addr); +void tipc_bcast_add_peer(struct net *net, u32 addr, + struct tipc_link *l, + struct sk_buff_head *xmitq); +void tipc_bcast_remove_peer(struct net *net, u32 addr, + struct tipc_link *rcv_bcl); struct tipc_node *tipc_bclink_retransmit_to(struct net *tn); void tipc_bclink_acknowledge(struct tipc_node *n_ptr, u32 acked); void tipc_bclink_rcv(struct net *net, struct sk_buff *buf); @@ -62,6 +65,10 @@ int tipc_bclink_reset_stats(struct net *net); int tipc_bclink_set_queue_limits(struct net *net, u32 limit); uint tipc_bcast_get_mtu(void); int tipc_bcast_xmit(struct net *net, struct sk_buff_head *list); +int tipc_bcast_rcv(struct net *net, struct tipc_link *l, struct sk_buff *skb); +void tipc_bcast_ack_rcv(struct net *net, struct tipc_link *l, u32 acked); +void tipc_bcast_sync_rcv(struct net *net, struct tipc_link *l, + struct tipc_msg *hdr); void tipc_bclink_wakeup_users(struct net *net); int tipc_nl_add_bc_link(struct net *net, struct tipc_nl_msg *msg); int tipc_nl_bc_link_set(struct net *net, struct nlattr *attrs[]); @@ -78,4 +85,9 @@ static inline void tipc_bcast_unlock(struct net *net) spin_unlock_bh(&tipc_net(net)->bclock); } +static inline struct tipc_link *tipc_bc_sndlink(struct net *net) +{ + return tipc_net(net)->bcl; +} + #endif |