Lines Matching refs:connection
182 void tl_release(struct drbd_connection *connection, unsigned int barrier_nr, in tl_release() argument
190 spin_lock_irq(&connection->resource->req_lock); in tl_release()
194 list_for_each_entry(r, &connection->transfer_log, tl_requests) { in tl_release()
219 drbd_err(connection, "BAD! BarrierAck #%u received, but no epoch in tl!?\n", in tl_release()
224 drbd_err(connection, "BAD! BarrierAck #%u received, expected #%u!\n", in tl_release()
230 drbd_err(connection, "BAD! BarrierAck #%u received with n_writes=%u, expected n_writes=%u!\n", in tl_release()
239 list_for_each_entry(req, &connection->transfer_log, tl_requests) in tl_release()
242 list_for_each_entry_safe_from(req, r, &connection->transfer_log, tl_requests) { in tl_release()
247 spin_unlock_irq(&connection->resource->req_lock); in tl_release()
252 spin_unlock_irq(&connection->resource->req_lock); in tl_release()
253 conn_request_state(connection, NS(conn, C_PROTOCOL_ERROR), CS_HARD); in tl_release()
266 void _tl_restart(struct drbd_connection *connection, enum drbd_req_event what) in _tl_restart() argument
270 list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) in _tl_restart()
274 void tl_restart(struct drbd_connection *connection, enum drbd_req_event what) in tl_restart() argument
276 spin_lock_irq(&connection->resource->req_lock); in tl_restart()
277 _tl_restart(connection, what); in tl_restart()
278 spin_unlock_irq(&connection->resource->req_lock); in tl_restart()
289 void tl_clear(struct drbd_connection *connection) in tl_clear() argument
291 tl_restart(connection, CONNECTION_LOST_WHILE_PENDING); in tl_clear()
300 struct drbd_connection *connection = first_peer_device(device)->connection; in tl_abort_disk_io() local
303 spin_lock_irq(&connection->resource->req_lock); in tl_abort_disk_io()
304 list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) { in tl_abort_disk_io()
311 spin_unlock_irq(&connection->resource->req_lock); in tl_abort_disk_io()
359 if (thi->connection) in drbd_thread_setup()
360 kref_put(&thi->connection->kref, drbd_destroy_connection); in drbd_thread_setup()
374 thi->connection = NULL; in drbd_thread_init()
401 if (thi->connection) in drbd_thread_start()
402 kref_get(&thi->connection->kref); in drbd_thread_start()
416 if (thi->connection) in drbd_thread_start()
417 kref_put(&thi->connection->kref, drbd_destroy_connection); in drbd_thread_start()
479 int conn_lowest_minor(struct drbd_connection *connection) in conn_lowest_minor() argument
485 peer_device = idr_get_next(&connection->peer_devices, &vnr); in conn_lowest_minor()
560 unsigned int drbd_header_size(struct drbd_connection *connection) in drbd_header_size() argument
562 if (connection->agreed_pro_version >= 100) { in drbd_header_size()
600 static unsigned int prepare_header(struct drbd_connection *connection, int vnr, in prepare_header() argument
603 if (connection->agreed_pro_version >= 100) in prepare_header()
605 else if (connection->agreed_pro_version >= 95 && in prepare_header()
612 static void *__conn_prepare_command(struct drbd_connection *connection, in __conn_prepare_command() argument
617 return sock->sbuf + drbd_header_size(connection); in __conn_prepare_command()
620 void *conn_prepare_command(struct drbd_connection *connection, struct drbd_socket *sock) in conn_prepare_command() argument
625 p = __conn_prepare_command(connection, sock); in conn_prepare_command()
634 return conn_prepare_command(peer_device->connection, sock); in drbd_prepare_command()
637 static int __send_command(struct drbd_connection *connection, int vnr, in __send_command() argument
654 header_size += prepare_header(connection, vnr, sock->sbuf, cmd, in __send_command()
656 err = drbd_send_all(connection, sock->socket, sock->sbuf, header_size, in __send_command()
659 err = drbd_send_all(connection, sock->socket, data, size, 0); in __send_command()
668 static int __conn_send_command(struct drbd_connection *connection, struct drbd_socket *sock, in __conn_send_command() argument
672 return __send_command(connection, 0, sock, cmd, header_size, data, size); in __conn_send_command()
675 int conn_send_command(struct drbd_connection *connection, struct drbd_socket *sock, in conn_send_command() argument
681 err = __conn_send_command(connection, sock, cmd, header_size, data, size); in conn_send_command()
692 err = __send_command(peer_device->connection, peer_device->device->vnr, in drbd_send_command()
698 int drbd_send_ping(struct drbd_connection *connection) in drbd_send_ping() argument
702 sock = &connection->meta; in drbd_send_ping()
703 if (!conn_prepare_command(connection, sock)) in drbd_send_ping()
705 return conn_send_command(connection, sock, P_PING, 0, NULL, 0); in drbd_send_ping()
708 int drbd_send_ping_ack(struct drbd_connection *connection) in drbd_send_ping_ack() argument
712 sock = &connection->meta; in drbd_send_ping_ack()
713 if (!conn_prepare_command(connection, sock)) in drbd_send_ping_ack()
715 return conn_send_command(connection, sock, P_PING_ACK, 0, NULL, 0); in drbd_send_ping_ack()
723 const int apv = peer_device->connection->agreed_pro_version; in drbd_send_sync_param()
728 sock = &peer_device->connection->data; in drbd_send_sync_param()
734 nc = rcu_dereference(peer_device->connection->net_conf); in drbd_send_sync_param()
772 int __drbd_send_protocol(struct drbd_connection *connection, enum drbd_packet cmd) in __drbd_send_protocol() argument
779 sock = &connection->data; in __drbd_send_protocol()
780 p = __conn_prepare_command(connection, sock); in __drbd_send_protocol()
785 nc = rcu_dereference(connection->net_conf); in __drbd_send_protocol()
787 if (nc->tentative && connection->agreed_pro_version < 92) { in __drbd_send_protocol()
789 drbd_err(connection, "--dry-run is not supported by peer"); in __drbd_send_protocol()
794 if (connection->agreed_pro_version >= 87) in __drbd_send_protocol()
809 if (connection->agreed_pro_version >= 87) in __drbd_send_protocol()
813 return __conn_send_command(connection, sock, cmd, size, NULL, 0); in __drbd_send_protocol()
816 int drbd_send_protocol(struct drbd_connection *connection) in drbd_send_protocol() argument
820 mutex_lock(&connection->data.mutex); in drbd_send_protocol()
821 err = __drbd_send_protocol(connection, P_PROTOCOL); in drbd_send_protocol()
822 mutex_unlock(&connection->data.mutex); in drbd_send_protocol()
837 sock = &peer_device->connection->data; in _drbd_send_uuids()
851 uuid_flags |= rcu_dereference(peer_device->connection->net_conf)->discard_my_data ? 1 : 0; in _drbd_send_uuids()
907 sock = &peer_device->connection->data; in drbd_gen_and_send_sync_uuid()
950 sock = &peer_device->connection->data; in drbd_send_sizes()
956 if (peer_device->connection->agreed_features & DRBD_FF_WSAME) in drbd_send_sizes()
979 if (peer_device->connection->agreed_pro_version <= 94) in drbd_send_sizes()
981 else if (peer_device->connection->agreed_pro_version < 100) in drbd_send_sizes()
1003 sock = &peer_device->connection->data; in drbd_send_current_state()
1026 sock = &peer_device->connection->data; in drbd_send_state()
1039 sock = &peer_device->connection->data; in drbd_send_state_req()
1048 int conn_send_state_req(struct drbd_connection *connection, union drbd_state mask, union drbd_state… in conn_send_state_req() argument
1054 cmd = connection->agreed_pro_version < 100 ? P_STATE_CHG_REQ : P_CONN_ST_CHG_REQ; in conn_send_state_req()
1055 sock = &connection->data; in conn_send_state_req()
1056 p = conn_prepare_command(connection, sock); in conn_send_state_req()
1061 return conn_send_command(connection, sock, cmd, sizeof(*p), NULL, 0); in conn_send_state_req()
1069 sock = &peer_device->connection->meta; in drbd_send_sr_reply()
1077 void conn_send_sr_reply(struct drbd_connection *connection, enum drbd_state_rv retcode) in conn_send_sr_reply() argument
1081 …enum drbd_packet cmd = connection->agreed_pro_version < 100 ? P_STATE_CHG_REPLY : P_CONN_ST_CHG_RE… in conn_send_sr_reply()
1083 sock = &connection->meta; in conn_send_sr_reply()
1084 p = conn_prepare_command(connection, sock); in conn_send_sr_reply()
1087 conn_send_command(connection, sock, cmd, sizeof(*p), NULL, 0); in conn_send_sr_reply()
1123 use_rle = rcu_dereference(first_peer_device(device)->connection->net_conf)->use_rle; in fill_bitmap_rle_bits()
1125 if (!use_rle || first_peer_device(device)->connection->agreed_pro_version < 90) in fill_bitmap_rle_bits()
1214 struct drbd_socket *sock = &first_peer_device(device)->connection->data; in send_bitmap_rle_or_plain()
1215 unsigned int header_size = drbd_header_size(first_peer_device(device)->connection); in send_bitmap_rle_or_plain()
1226 err = __send_command(first_peer_device(device)->connection, device->vnr, sock, in send_bitmap_rle_or_plain()
1247 …err = __send_command(first_peer_device(device)->connection, device->vnr, sock, P_BITMAP, len, NULL… in send_bitmap_rle_or_plain()
1307 struct drbd_socket *sock = &first_peer_device(device)->connection->data; in drbd_send_bitmap()
1317 void drbd_send_b_ack(struct drbd_connection *connection, u32 barrier_nr, u32 set_size) in drbd_send_b_ack() argument
1322 if (connection->cstate < C_WF_REPORT_PARAMS) in drbd_send_b_ack()
1325 sock = &connection->meta; in drbd_send_b_ack()
1326 p = conn_prepare_command(connection, sock); in drbd_send_b_ack()
1331 conn_send_command(connection, sock, P_BARRIER_ACK, sizeof(*p), NULL, 0); in drbd_send_b_ack()
1351 sock = &peer_device->connection->meta; in _drbd_send_ack()
1368 if (peer_device->connection->peer_integrity_tfm) in drbd_send_ack_dp()
1369 data_size -= crypto_shash_digestsize(peer_device->connection->peer_integrity_tfm); in drbd_send_ack_dp()
1412 sock = &peer_device->connection->data; in drbd_send_rs_deallocated()
1428 sock = &peer_device->connection->data; in drbd_send_drequest()
1446 sock = &peer_device->connection->data; in drbd_send_drequest_csum()
1461 sock = &peer_device->connection->data; in drbd_send_ov_request()
1475 static int we_should_drop_the_connection(struct drbd_connection *connection, struct socket *sock) in we_should_drop_the_connection() argument
1480 drop_it = connection->meta.socket == sock in we_should_drop_the_connection()
1481 || !connection->ack_receiver.task in we_should_drop_the_connection()
1482 || get_t_state(&connection->ack_receiver) != RUNNING in we_should_drop_the_connection()
1483 || connection->cstate < C_WF_REPORT_PARAMS; in we_should_drop_the_connection()
1488 drop_it = !--connection->ko_count; in we_should_drop_the_connection()
1490 drbd_err(connection, "[%s/%d] sock_sendmsg time expired, ko = %u\n", in we_should_drop_the_connection()
1491 current->comm, current->pid, connection->ko_count); in we_should_drop_the_connection()
1492 request_ping(connection); in we_should_drop_the_connection()
1498 static void drbd_update_congested(struct drbd_connection *connection) in drbd_update_congested() argument
1500 struct sock *sk = connection->data.socket->sk; in drbd_update_congested()
1502 set_bit(NET_CONGESTED, &connection->flags); in drbd_update_congested()
1533 socket = peer_device->connection->data.socket; in _drbd_no_send_page()
1535 err = drbd_send_all(peer_device->connection, socket, addr, size, msg_flags); in _drbd_no_send_page()
1545 struct socket *socket = peer_device->connection->data.socket; in _drbd_send_page()
1559 drbd_update_congested(peer_device->connection); in _drbd_send_page()
1566 if (we_should_drop_the_connection(peer_device->connection, socket)) in _drbd_send_page()
1579 clear_bit(NET_CONGESTED, &peer_device->connection->flags); in _drbd_send_page()
1651 static u32 bio_flags_to_wire(struct drbd_connection *connection, in bio_flags_to_wire() argument
1654 if (connection->agreed_pro_version >= 95) in bio_flags_to_wire()
1661 ((connection->agreed_features & DRBD_FF_WZEROES) ? in bio_flags_to_wire()
1683 sock = &peer_device->connection->data; in drbd_send_dblock()
1685 digest_size = peer_device->connection->integrity_tfm ? in drbd_send_dblock()
1686 crypto_shash_digestsize(peer_device->connection->integrity_tfm) : 0; in drbd_send_dblock()
1693 dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio); in drbd_send_dblock()
1697 if (peer_device->connection->agreed_pro_version >= 100) { in drbd_send_dblock()
1712 err = __send_command(peer_device->connection, device->vnr, sock, cmd, sizeof(*t), NULL, 0); in drbd_send_dblock()
1728 drbd_csum_bio(peer_device->connection->integrity_tfm, req->master_bio, digest_out); in drbd_send_dblock()
1731 __send_command(peer_device->connection, device->vnr, sock, P_WSAME, in drbd_send_dblock()
1736 __send_command(peer_device->connection, device->vnr, sock, P_DATA, in drbd_send_dblock()
1760 drbd_csum_bio(peer_device->connection->integrity_tfm, req->master_bio, digest); in drbd_send_dblock()
1789 sock = &peer_device->connection->data; in drbd_send_block()
1792 digest_size = peer_device->connection->integrity_tfm ? in drbd_send_block()
1793 crypto_shash_digestsize(peer_device->connection->integrity_tfm) : 0; in drbd_send_block()
1802 drbd_csum_ee(peer_device->connection->integrity_tfm, peer_req, p + 1); in drbd_send_block()
1803 …err = __send_command(peer_device->connection, device->vnr, sock, cmd, sizeof(*p) + digest_size, NU… in drbd_send_block()
1816 sock = &peer_device->connection->data; in drbd_send_out_of_sync()
1841 int drbd_send(struct drbd_connection *connection, struct socket *sock, in drbd_send() argument
1855 if (sock == connection->data.socket) { in drbd_send()
1857 connection->ko_count = rcu_dereference(connection->net_conf)->ko_count; in drbd_send()
1859 drbd_update_congested(connection); in drbd_send()
1864 if (we_should_drop_the_connection(connection, sock)) in drbd_send()
1878 if (sock == connection->data.socket) in drbd_send()
1879 clear_bit(NET_CONGESTED, &connection->flags); in drbd_send()
1883 drbd_err(connection, "%s_sendmsg returned %d\n", in drbd_send()
1884 sock == connection->meta.socket ? "msock" : "sock", in drbd_send()
1886 conn_request_state(connection, NS(conn, C_BROKEN_PIPE), CS_HARD); in drbd_send()
1888 conn_request_state(connection, NS(conn, C_TIMEOUT), CS_HARD); in drbd_send()
1899 int drbd_send_all(struct drbd_connection *connection, struct socket *sock, void *buffer, in drbd_send_all() argument
1904 err = drbd_send(connection, sock, buffer, size, msg_flags); in drbd_send_all()
1953 &first_peer_device(device)->connection->sender_work, in drbd_queue_unplug()
2049 if (first_peer_device(device)->connection->receiver.t_state != NONE) in drbd_device_cleanup()
2051 first_peer_device(device)->connection->receiver.t_state); in drbd_device_cleanup()
2069 D_ASSERT(device, first_peer_device(device)->connection->net_conf == NULL); in drbd_device_cleanup()
2089 D_ASSERT(device, list_empty(&first_peer_device(device)->connection->sender_work.q)); in drbd_device_cleanup()
2263 kref_put(&peer_device->connection->kref, drbd_destroy_connection); in drbd_destroy_device()
2365 struct drbd_connection *connection, *tmp; in drbd_free_resource() local
2367 for_each_connection_safe(connection, tmp, resource) { in drbd_free_resource()
2368 list_del(&connection->connections); in drbd_free_resource()
2369 drbd_debugfs_connection_cleanup(connection); in drbd_free_resource()
2370 kref_put(&connection->kref, drbd_destroy_connection); in drbd_free_resource()
2438 if (test_bit(CALLBACK_PENDING, &first_peer_device(device)->connection->flags)) { in drbd_congested()
2463 test_bit(NET_CONGESTED, &first_peer_device(device)->connection->flags)) { in drbd_congested()
2528 struct drbd_connection *connection; in conn_get_by_addrs() local
2532 for_each_connection_rcu(connection, resource) { in conn_get_by_addrs()
2533 if (connection->my_addr_len == my_addr_len && in conn_get_by_addrs()
2534 connection->peer_addr_len == peer_addr_len && in conn_get_by_addrs()
2535 !memcmp(&connection->my_addr, my_addr, my_addr_len) && in conn_get_by_addrs()
2536 !memcmp(&connection->peer_addr, peer_addr, peer_addr_len)) { in conn_get_by_addrs()
2537 kref_get(&connection->kref); in conn_get_by_addrs()
2542 connection = NULL; in conn_get_by_addrs()
2545 return connection; in conn_get_by_addrs()
2565 void conn_free_crypto(struct drbd_connection *connection) in conn_free_crypto() argument
2567 drbd_free_sock(connection); in conn_free_crypto()
2569 crypto_free_shash(connection->csums_tfm); in conn_free_crypto()
2570 crypto_free_shash(connection->verify_tfm); in conn_free_crypto()
2571 crypto_free_shash(connection->cram_hmac_tfm); in conn_free_crypto()
2572 crypto_free_shash(connection->integrity_tfm); in conn_free_crypto()
2573 crypto_free_shash(connection->peer_integrity_tfm); in conn_free_crypto()
2574 kfree(connection->int_dig_in); in conn_free_crypto()
2575 kfree(connection->int_dig_vv); in conn_free_crypto()
2577 connection->csums_tfm = NULL; in conn_free_crypto()
2578 connection->verify_tfm = NULL; in conn_free_crypto()
2579 connection->cram_hmac_tfm = NULL; in conn_free_crypto()
2580 connection->integrity_tfm = NULL; in conn_free_crypto()
2581 connection->peer_integrity_tfm = NULL; in conn_free_crypto()
2582 connection->int_dig_in = NULL; in conn_free_crypto()
2583 connection->int_dig_vv = NULL; in conn_free_crypto()
2588 struct drbd_connection *connection; in set_resource_options() local
2624 for_each_connection_rcu(connection, resource) { in set_resource_options()
2625 connection->receiver.reset_cpu_mask = 1; in set_resource_options()
2626 connection->ack_receiver.reset_cpu_mask = 1; in set_resource_options()
2627 connection->worker.reset_cpu_mask = 1; in set_resource_options()
2673 struct drbd_connection *connection; in conn_create() local
2675 connection = kzalloc(sizeof(struct drbd_connection), GFP_KERNEL); in conn_create()
2676 if (!connection) in conn_create()
2679 if (drbd_alloc_socket(&connection->data)) in conn_create()
2681 if (drbd_alloc_socket(&connection->meta)) in conn_create()
2684 connection->current_epoch = kzalloc(sizeof(struct drbd_epoch), GFP_KERNEL); in conn_create()
2685 if (!connection->current_epoch) in conn_create()
2688 INIT_LIST_HEAD(&connection->transfer_log); in conn_create()
2690 INIT_LIST_HEAD(&connection->current_epoch->list); in conn_create()
2691 connection->epochs = 1; in conn_create()
2692 spin_lock_init(&connection->epoch_lock); in conn_create()
2694 connection->send.seen_any_write_yet = false; in conn_create()
2695 connection->send.current_epoch_nr = 0; in conn_create()
2696 connection->send.current_epoch_writes = 0; in conn_create()
2702 connection->cstate = C_STANDALONE; in conn_create()
2703 mutex_init(&connection->cstate_mutex); in conn_create()
2704 init_waitqueue_head(&connection->ping_wait); in conn_create()
2705 idr_init(&connection->peer_devices); in conn_create()
2707 drbd_init_workqueue(&connection->sender_work); in conn_create()
2708 mutex_init(&connection->data.mutex); in conn_create()
2709 mutex_init(&connection->meta.mutex); in conn_create()
2711 drbd_thread_init(resource, &connection->receiver, drbd_receiver, "receiver"); in conn_create()
2712 connection->receiver.connection = connection; in conn_create()
2713 drbd_thread_init(resource, &connection->worker, drbd_worker, "worker"); in conn_create()
2714 connection->worker.connection = connection; in conn_create()
2715 drbd_thread_init(resource, &connection->ack_receiver, drbd_ack_receiver, "ack_recv"); in conn_create()
2716 connection->ack_receiver.connection = connection; in conn_create()
2718 kref_init(&connection->kref); in conn_create()
2720 connection->resource = resource; in conn_create()
2726 list_add_tail_rcu(&connection->connections, &resource->connections); in conn_create()
2727 drbd_debugfs_connection_add(connection); in conn_create()
2728 return connection; in conn_create()
2734 kfree(connection->current_epoch); in conn_create()
2735 drbd_free_socket(&connection->meta); in conn_create()
2736 drbd_free_socket(&connection->data); in conn_create()
2737 kfree(connection); in conn_create()
2743 struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref); in drbd_destroy_connection() local
2744 struct drbd_resource *resource = connection->resource; in drbd_destroy_connection()
2746 if (atomic_read(&connection->current_epoch->epoch_size) != 0) in drbd_destroy_connection()
2747 drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size)); in drbd_destroy_connection()
2748 kfree(connection->current_epoch); in drbd_destroy_connection()
2750 idr_destroy(&connection->peer_devices); in drbd_destroy_connection()
2752 drbd_free_socket(&connection->meta); in drbd_destroy_connection()
2753 drbd_free_socket(&connection->data); in drbd_destroy_connection()
2754 kfree(connection->int_dig_in); in drbd_destroy_connection()
2755 kfree(connection->int_dig_vv); in drbd_destroy_connection()
2756 memset(connection, 0xfc, sizeof(*connection)); in drbd_destroy_connection()
2757 kfree(connection); in drbd_destroy_connection()
2778 struct drbd_connection *connection; in drbd_create_device() local
2864 for_each_connection(connection, resource) { in drbd_create_device()
2868 peer_device->connection = connection; in drbd_create_device()
2874 id = idr_alloc(&connection->peer_devices, peer_device, vnr, vnr + 1, GFP_KERNEL); in drbd_create_device()
2880 kref_get(&connection->kref); in drbd_create_device()
2904 idr_remove(&connection->peer_devices, vnr); in drbd_create_device()
2906 for_each_connection(connection, resource) { in drbd_create_device()
2907 peer_device = idr_remove(&connection->peer_devices, vnr); in drbd_create_device()
2909 kref_put(&connection->kref, drbd_destroy_connection); in drbd_create_device()
2936 struct drbd_connection *connection; in drbd_delete_device() local
2943 for_each_connection(connection, resource) { in drbd_delete_device()
2944 idr_remove(&connection->peer_devices, device->vnr); in drbd_delete_device()
3046 void drbd_free_sock(struct drbd_connection *connection) in drbd_free_sock() argument
3048 if (connection->data.socket) in drbd_free_sock()
3049 drbd_free_one_sock(&connection->data); in drbd_free_sock()
3050 if (connection->meta.socket) in drbd_free_sock()
3051 drbd_free_one_sock(&connection->meta); in drbd_free_sock()
3056 void conn_md_sync(struct drbd_connection *connection) in conn_md_sync() argument
3062 idr_for_each_entry(&connection->peer_devices, peer_device, vnr) { in conn_md_sync()
3620 D_ASSERT(device, current == first_peer_device(device)->connection->worker.task); in drbd_queue_bitmap_io()
3640 drbd_queue_work(&first_peer_device(device)->connection->sender_work, in drbd_queue_bitmap_io()
3662 D_ASSERT(device, current != first_peer_device(device)->connection->worker.task); in drbd_bitmap_io()
3790 nc = rcu_dereference(first_peer_device(device)->connection->net_conf); in drbd_wait_misc()