Lines Matching refs:peer
78 static long rxrpc_peer_cmp_key(const struct rxrpc_peer *peer, in rxrpc_peer_cmp_key() argument
85 diff = ((peer->hash_key - hash_key) ?: in rxrpc_peer_cmp_key()
86 ((unsigned long)peer->local - (unsigned long)local) ?: in rxrpc_peer_cmp_key()
87 (peer->srx.transport_type - srx->transport_type) ?: in rxrpc_peer_cmp_key()
88 (peer->srx.transport_len - srx->transport_len) ?: in rxrpc_peer_cmp_key()
89 (peer->srx.transport.family - srx->transport.family)); in rxrpc_peer_cmp_key()
95 return ((u16 __force)peer->srx.transport.sin.sin_port - in rxrpc_peer_cmp_key()
97 memcmp(&peer->srx.transport.sin.sin_addr, in rxrpc_peer_cmp_key()
102 return ((u16 __force)peer->srx.transport.sin6.sin6_port - in rxrpc_peer_cmp_key()
104 memcmp(&peer->srx.transport.sin6.sin6_addr, in rxrpc_peer_cmp_key()
121 struct rxrpc_peer *peer; in __rxrpc_lookup_peer_rcu() local
124 hash_for_each_possible_rcu(rxnet->peer_hash, peer, hash_link, hash_key) { in __rxrpc_lookup_peer_rcu()
125 if (rxrpc_peer_cmp_key(peer, local, srx, hash_key) == 0 && in __rxrpc_lookup_peer_rcu()
126 refcount_read(&peer->ref) > 0) in __rxrpc_lookup_peer_rcu()
127 return peer; in __rxrpc_lookup_peer_rcu()
139 struct rxrpc_peer *peer; in rxrpc_lookup_peer_rcu() local
142 peer = __rxrpc_lookup_peer_rcu(local, srx, hash_key); in rxrpc_lookup_peer_rcu()
143 if (peer) in rxrpc_lookup_peer_rcu()
144 _leave(" = %p {u=%d}", peer, refcount_read(&peer->ref)); in rxrpc_lookup_peer_rcu()
145 return peer; in rxrpc_lookup_peer_rcu()
152 void rxrpc_assess_MTU_size(struct rxrpc_local *local, struct rxrpc_peer *peer) in rxrpc_assess_MTU_size() argument
163 peer->if_mtu = 1500; in rxrpc_assess_MTU_size()
164 if (peer->max_data < peer->if_mtu - peer->hdrsize) { in rxrpc_assess_MTU_size()
165 trace_rxrpc_pmtud_reduce(peer, 0, peer->if_mtu - peer->hdrsize, in rxrpc_assess_MTU_size()
167 peer->max_data = peer->if_mtu - peer->hdrsize; in rxrpc_assess_MTU_size()
171 switch (peer->srx.transport.family) { in rxrpc_assess_MTU_size()
175 peer->srx.transport.sin.sin_addr.s_addr, 0, in rxrpc_assess_MTU_size()
189 memcpy(&fl6->daddr, &peer->srx.transport.sin6.sin6_addr, in rxrpc_assess_MTU_size()
205 peer->if_mtu = dst_mtu(dst); in rxrpc_assess_MTU_size()
206 peer->hdrsize += dst->header_len + dst->trailer_len; in rxrpc_assess_MTU_size()
207 peer->tx_seg_max = dst->dev->gso_max_segs; in rxrpc_assess_MTU_size()
210 peer->max_data = umin(RXRPC_JUMBO(1), peer->if_mtu - peer->hdrsize); in rxrpc_assess_MTU_size()
211 peer->pmtud_good = 500; in rxrpc_assess_MTU_size()
212 peer->pmtud_bad = peer->if_mtu - peer->hdrsize + 1; in rxrpc_assess_MTU_size()
213 peer->pmtud_trial = umin(peer->max_data, peer->pmtud_bad - 1); in rxrpc_assess_MTU_size()
214 peer->pmtud_pending = true; in rxrpc_assess_MTU_size()
216 _leave(" [if_mtu %u]", peer->if_mtu); in rxrpc_assess_MTU_size()
225 struct rxrpc_peer *peer; in rxrpc_alloc_peer() local
229 peer = kzalloc(sizeof(struct rxrpc_peer), gfp); in rxrpc_alloc_peer()
230 if (peer) { in rxrpc_alloc_peer()
231 refcount_set(&peer->ref, 1); in rxrpc_alloc_peer()
232 peer->local = rxrpc_get_local(local, rxrpc_local_get_peer); in rxrpc_alloc_peer()
233 INIT_HLIST_HEAD(&peer->error_targets); in rxrpc_alloc_peer()
234 peer->service_conns = RB_ROOT; in rxrpc_alloc_peer()
235 seqlock_init(&peer->service_conn_lock); in rxrpc_alloc_peer()
236 spin_lock_init(&peer->lock); in rxrpc_alloc_peer()
237 peer->debug_id = atomic_inc_return(&rxrpc_debug_id); in rxrpc_alloc_peer()
238 peer->recent_srtt_us = UINT_MAX; in rxrpc_alloc_peer()
239 peer->cong_ssthresh = RXRPC_TX_MAX_WINDOW; in rxrpc_alloc_peer()
240 trace_rxrpc_peer(peer->debug_id, 1, why); in rxrpc_alloc_peer()
243 _leave(" = %p", peer); in rxrpc_alloc_peer()
244 return peer; in rxrpc_alloc_peer()
250 static void rxrpc_init_peer(struct rxrpc_local *local, struct rxrpc_peer *peer, in rxrpc_init_peer() argument
253 peer->hash_key = hash_key; in rxrpc_init_peer()
256 switch (peer->srx.transport.family) { in rxrpc_init_peer()
258 peer->hdrsize = sizeof(struct iphdr); in rxrpc_init_peer()
262 peer->hdrsize = sizeof(struct ipv6hdr); in rxrpc_init_peer()
269 switch (peer->srx.transport_type) { in rxrpc_init_peer()
271 peer->hdrsize += sizeof(struct udphdr); in rxrpc_init_peer()
277 peer->hdrsize += sizeof(struct rxrpc_wire_header); in rxrpc_init_peer()
278 peer->max_data = peer->if_mtu - peer->hdrsize; in rxrpc_init_peer()
289 struct rxrpc_peer *peer; in rxrpc_create_peer() local
293 peer = rxrpc_alloc_peer(local, gfp, rxrpc_peer_new_client); in rxrpc_create_peer()
294 if (peer) { in rxrpc_create_peer()
295 memcpy(&peer->srx, srx, sizeof(*srx)); in rxrpc_create_peer()
296 rxrpc_init_peer(local, peer, hash_key); in rxrpc_create_peer()
297 rxrpc_assess_MTU_size(local, peer); in rxrpc_create_peer()
300 _leave(" = %p", peer); in rxrpc_create_peer()
301 return peer; in rxrpc_create_peer()
304 static void rxrpc_free_peer(struct rxrpc_peer *peer) in rxrpc_free_peer() argument
306 trace_rxrpc_peer(peer->debug_id, 0, rxrpc_peer_free); in rxrpc_free_peer()
307 rxrpc_put_local(peer->local, rxrpc_local_put_peer); in rxrpc_free_peer()
308 kfree_rcu(peer, rcu); in rxrpc_free_peer()
317 void rxrpc_new_incoming_peer(struct rxrpc_local *local, struct rxrpc_peer *peer) in rxrpc_new_incoming_peer() argument
322 hash_key = rxrpc_peer_hash_key(local, &peer->srx); in rxrpc_new_incoming_peer()
323 rxrpc_init_peer(local, peer, hash_key); in rxrpc_new_incoming_peer()
326 hash_add_rcu(rxnet->peer_hash, &peer->hash_link, hash_key); in rxrpc_new_incoming_peer()
327 list_add_tail(&peer->keepalive_link, &rxnet->peer_keepalive_new); in rxrpc_new_incoming_peer()
337 struct rxrpc_peer *peer, *candidate; in rxrpc_lookup_peer() local
345 peer = __rxrpc_lookup_peer_rcu(local, srx, hash_key); in rxrpc_lookup_peer()
346 if (peer && !rxrpc_get_peer_maybe(peer, rxrpc_peer_get_lookup_client)) in rxrpc_lookup_peer()
347 peer = NULL; in rxrpc_lookup_peer()
350 if (!peer) { in rxrpc_lookup_peer()
363 peer = __rxrpc_lookup_peer_rcu(local, srx, hash_key); in rxrpc_lookup_peer()
364 if (peer && !rxrpc_get_peer_maybe(peer, rxrpc_peer_get_lookup_client)) in rxrpc_lookup_peer()
365 peer = NULL; in rxrpc_lookup_peer()
366 if (!peer) { in rxrpc_lookup_peer()
375 if (peer) in rxrpc_lookup_peer()
378 peer = candidate; in rxrpc_lookup_peer()
381 _leave(" = %p {u=%d}", peer, refcount_read(&peer->ref)); in rxrpc_lookup_peer()
382 return peer; in rxrpc_lookup_peer()
388 struct rxrpc_peer *rxrpc_get_peer(struct rxrpc_peer *peer, enum rxrpc_peer_trace why) in rxrpc_get_peer() argument
392 __refcount_inc(&peer->ref, &r); in rxrpc_get_peer()
393 trace_rxrpc_peer(peer->debug_id, r + 1, why); in rxrpc_get_peer()
394 return peer; in rxrpc_get_peer()
400 struct rxrpc_peer *rxrpc_get_peer_maybe(struct rxrpc_peer *peer, in rxrpc_get_peer_maybe() argument
405 if (peer) { in rxrpc_get_peer_maybe()
406 if (__refcount_inc_not_zero(&peer->ref, &r)) in rxrpc_get_peer_maybe()
407 trace_rxrpc_peer(peer->debug_id, r + 1, why); in rxrpc_get_peer_maybe()
409 peer = NULL; in rxrpc_get_peer_maybe()
411 return peer; in rxrpc_get_peer_maybe()
417 static void __rxrpc_put_peer(struct rxrpc_peer *peer) in __rxrpc_put_peer() argument
419 struct rxrpc_net *rxnet = peer->local->rxnet; in __rxrpc_put_peer()
421 ASSERT(hlist_empty(&peer->error_targets)); in __rxrpc_put_peer()
424 hash_del_rcu(&peer->hash_link); in __rxrpc_put_peer()
425 list_del_init(&peer->keepalive_link); in __rxrpc_put_peer()
428 rxrpc_free_peer(peer); in __rxrpc_put_peer()
434 void rxrpc_put_peer(struct rxrpc_peer *peer, enum rxrpc_peer_trace why) in rxrpc_put_peer() argument
440 if (peer) { in rxrpc_put_peer()
441 debug_id = peer->debug_id; in rxrpc_put_peer()
442 dead = __refcount_dec_and_test(&peer->ref, &r); in rxrpc_put_peer()
445 __rxrpc_put_peer(peer); in rxrpc_put_peer()
454 struct rxrpc_peer *peer; in rxrpc_destroy_all_peers() local
461 hlist_for_each_entry(peer, &rxnet->peer_hash[i], hash_link) { in rxrpc_destroy_all_peers()
463 peer->debug_id, in rxrpc_destroy_all_peers()
464 refcount_read(&peer->ref), in rxrpc_destroy_all_peers()
465 &peer->srx.transport); in rxrpc_destroy_all_peers()
481 return rxrpc_get_peer(call->peer, rxrpc_peer_get_application); in rxrpc_kernel_get_call_peer()
493 unsigned int rxrpc_kernel_get_srtt(const struct rxrpc_peer *peer) in rxrpc_kernel_get_srtt() argument
495 return READ_ONCE(peer->recent_srtt_us); in rxrpc_kernel_get_srtt()
509 const struct sockaddr_rxrpc *rxrpc_kernel_remote_srx(const struct rxrpc_peer *peer) in rxrpc_kernel_remote_srx() argument
511 return peer ? &peer->srx : &rxrpc_null_addr; in rxrpc_kernel_remote_srx()
525 const struct sockaddr *rxrpc_kernel_remote_addr(const struct rxrpc_peer *peer) in rxrpc_kernel_remote_addr() argument
528 (peer ? &peer->srx.transport : &rxrpc_null_addr.transport); in rxrpc_kernel_remote_addr()
542 unsigned long rxrpc_kernel_set_peer_data(struct rxrpc_peer *peer, unsigned long app_data) in rxrpc_kernel_set_peer_data() argument
544 return xchg(&peer->app_data, app_data); in rxrpc_kernel_set_peer_data()
556 unsigned long rxrpc_kernel_get_peer_data(const struct rxrpc_peer *peer) in rxrpc_kernel_get_peer_data() argument
558 return peer->app_data; in rxrpc_kernel_get_peer_data()