diff options
Diffstat (limited to 'net/tipc/link.h')
| -rw-r--r-- | net/tipc/link.h | 51 |
1 files changed, 26 insertions, 25 deletions
diff --git a/net/tipc/link.h b/net/tipc/link.h index 7aeb52092bf3..b5b4e3554d4e 100644 --- a/net/tipc/link.h +++ b/net/tipc/link.h | |||
| @@ -58,8 +58,10 @@ | |||
| 58 | 58 | ||
| 59 | /* Link endpoint execution states | 59 | /* Link endpoint execution states |
| 60 | */ | 60 | */ |
| 61 | #define LINK_STARTED 0x0001 | 61 | #define LINK_STARTED 0x0001 |
| 62 | #define LINK_STOPPED 0x0002 | 62 | #define LINK_STOPPED 0x0002 |
| 63 | #define LINK_SYNCHING 0x0004 | ||
| 64 | #define LINK_FAILINGOVER 0x0008 | ||
| 63 | 65 | ||
| 64 | /* Starting value for maximum packet size negotiation on unicast links | 66 | /* Starting value for maximum packet size negotiation on unicast links |
| 65 | * (unless bearer MTU is less) | 67 | * (unless bearer MTU is less) |
| @@ -118,13 +120,13 @@ struct tipc_stats { | |||
| 118 | * @pmsg: convenience pointer to "proto_msg" field | 120 | * @pmsg: convenience pointer to "proto_msg" field |
| 119 | * @priority: current link priority | 121 | * @priority: current link priority |
| 120 | * @net_plane: current link network plane ('A' through 'H') | 122 | * @net_plane: current link network plane ('A' through 'H') |
| 121 | * @queue_limit: outbound message queue congestion thresholds (indexed by user) | 123 | * @backlog_limit: backlog queue congestion thresholds (indexed by importance) |
| 122 | * @exp_msg_count: # of tunnelled messages expected during link changeover | 124 | * @exp_msg_count: # of tunnelled messages expected during link changeover |
| 123 | * @reset_checkpoint: seq # of last acknowledged message at time of link reset | 125 | * @reset_checkpoint: seq # of last acknowledged message at time of link reset |
| 124 | * @max_pkt: current maximum packet size for this link | 126 | * @mtu: current maximum packet size for this link |
| 125 | * @max_pkt_target: desired maximum packet size for this link | 127 | * @advertised_mtu: advertised own mtu when link is being established |
| 126 | * @max_pkt_probes: # of probes based on current (max_pkt, max_pkt_target) | 128 | * @transmitq: queue for sent, non-acked messages |
| 127 | * @outqueue: outbound message queue | 129 | * @backlogq: queue for messages waiting to be sent |
| 128 | * @next_out_no: next sequence number to use for outbound messages | 130 | * @next_out_no: next sequence number to use for outbound messages |
| 129 | * @last_retransmitted: sequence number of most recently retransmitted message | 131 | * @last_retransmitted: sequence number of most recently retransmitted message |
| 130 | * @stale_count: # of identical retransmit requests made by peer | 132 | * @stale_count: # of identical retransmit requests made by peer |
| @@ -165,36 +167,40 @@ struct tipc_link { | |||
| 165 | struct tipc_msg *pmsg; | 167 | struct tipc_msg *pmsg; |
| 166 | u32 priority; | 168 | u32 priority; |
| 167 | char net_plane; | 169 | char net_plane; |
| 168 | u32 queue_limit[15]; /* queue_limit[0]==window limit */ | 170 | u16 synch_point; |
| 169 | 171 | ||
| 170 | /* Changeover */ | 172 | /* Failover */ |
| 171 | u32 exp_msg_count; | 173 | u16 failover_pkts; |
| 172 | u32 reset_checkpoint; | 174 | u16 failover_checkpt; |
| 175 | struct sk_buff *failover_skb; | ||
| 173 | 176 | ||
| 174 | /* Max packet negotiation */ | 177 | /* Max packet negotiation */ |
| 175 | u32 max_pkt; | 178 | u16 mtu; |
| 176 | u32 max_pkt_target; | 179 | u16 advertised_mtu; |
| 177 | u32 max_pkt_probes; | ||
| 178 | 180 | ||
| 179 | /* Sending */ | 181 | /* Sending */ |
| 180 | struct sk_buff_head outqueue; | 182 | struct sk_buff_head transmq; |
| 183 | struct sk_buff_head backlogq; | ||
| 184 | struct { | ||
| 185 | u16 len; | ||
| 186 | u16 limit; | ||
| 187 | } backlog[5]; | ||
| 181 | u32 next_out_no; | 188 | u32 next_out_no; |
| 189 | u32 window; | ||
| 182 | u32 last_retransmitted; | 190 | u32 last_retransmitted; |
| 183 | u32 stale_count; | 191 | u32 stale_count; |
| 184 | 192 | ||
| 185 | /* Reception */ | 193 | /* Reception */ |
| 186 | u32 next_in_no; | 194 | u32 next_in_no; |
| 187 | struct sk_buff_head deferred_queue; | 195 | u32 rcv_unacked; |
| 188 | u32 unacked_window; | 196 | struct sk_buff_head deferdq; |
| 189 | struct sk_buff_head inputq; | 197 | struct sk_buff_head inputq; |
| 190 | struct sk_buff_head namedq; | 198 | struct sk_buff_head namedq; |
| 191 | 199 | ||
| 192 | /* Congestion handling */ | 200 | /* Congestion handling */ |
| 193 | struct sk_buff *next_out; | ||
| 194 | struct sk_buff_head wakeupq; | 201 | struct sk_buff_head wakeupq; |
| 195 | 202 | ||
| 196 | /* Fragmentation/reassembly */ | 203 | /* Fragmentation/reassembly */ |
| 197 | u32 long_msg_seq_no; | ||
| 198 | struct sk_buff *reasm_buf; | 204 | struct sk_buff *reasm_buf; |
| 199 | 205 | ||
| 200 | /* Statistics */ | 206 | /* Statistics */ |
| @@ -225,7 +231,7 @@ int tipc_link_xmit(struct net *net, struct sk_buff_head *list, u32 dest, | |||
| 225 | int __tipc_link_xmit(struct net *net, struct tipc_link *link, | 231 | int __tipc_link_xmit(struct net *net, struct tipc_link *link, |
| 226 | struct sk_buff_head *list); | 232 | struct sk_buff_head *list); |
| 227 | void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int prob, | 233 | void tipc_link_proto_xmit(struct tipc_link *l_ptr, u32 msg_typ, int prob, |
| 228 | u32 gap, u32 tolerance, u32 priority, u32 acked_mtu); | 234 | u32 gap, u32 tolerance, u32 priority); |
| 229 | void tipc_link_push_packets(struct tipc_link *l_ptr); | 235 | void tipc_link_push_packets(struct tipc_link *l_ptr); |
| 230 | u32 tipc_link_defer_pkt(struct sk_buff_head *list, struct sk_buff *buf); | 236 | u32 tipc_link_defer_pkt(struct sk_buff_head *list, struct sk_buff *buf); |
| 231 | void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window); | 237 | void tipc_link_set_queue_limits(struct tipc_link *l_ptr, u32 window); |
| @@ -302,9 +308,4 @@ static inline int link_reset_reset(struct tipc_link *l_ptr) | |||
| 302 | return l_ptr->state == RESET_RESET; | 308 | return l_ptr->state == RESET_RESET; |
| 303 | } | 309 | } |
| 304 | 310 | ||
| 305 | static inline int link_congested(struct tipc_link *l_ptr) | ||
| 306 | { | ||
| 307 | return skb_queue_len(&l_ptr->outqueue) >= l_ptr->queue_limit[0]; | ||
| 308 | } | ||
| 309 | |||
| 310 | #endif | 311 | #endif |
