Lines Matching refs:connection
160 void tl_release(struct drbd_connection *connection, unsigned int barrier_nr, in tl_release() argument
168 spin_lock_irq(&connection->resource->req_lock); in tl_release()
172 list_for_each_entry(r, &connection->transfer_log, tl_requests) { in tl_release()
197 drbd_err(connection, "BAD! BarrierAck #%u received, but no epoch in tl!?\n", in tl_release()
202 drbd_err(connection, "BAD! BarrierAck #%u received, expected #%u!\n", in tl_release()
208 drbd_err(connection, "BAD! BarrierAck #%u received with n_writes=%u, expected n_writes=%u!\n", in tl_release()
217 list_for_each_entry(req, &connection->transfer_log, tl_requests) in tl_release()
222 req = list_prepare_entry(tmp, &connection->transfer_log, tl_requests); in tl_release()
223 list_for_each_entry_safe_from(req, r, &connection->transfer_log, tl_requests) { in tl_release()
227 peer_device = conn_peer_device(connection, req->device->vnr); in tl_release()
230 spin_unlock_irq(&connection->resource->req_lock); in tl_release()
235 spin_unlock_irq(&connection->resource->req_lock); in tl_release()
236 conn_request_state(connection, NS(conn, C_PROTOCOL_ERROR), CS_HARD); in tl_release()
249 void _tl_restart(struct drbd_connection *connection, enum drbd_req_event what) in _tl_restart() argument
254 list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) { in _tl_restart()
255 peer_device = conn_peer_device(connection, req->device->vnr); in _tl_restart()
260 void tl_restart(struct drbd_connection *connection, enum drbd_req_event what) in tl_restart() argument
262 spin_lock_irq(&connection->resource->req_lock); in tl_restart()
263 _tl_restart(connection, what); in tl_restart()
264 spin_unlock_irq(&connection->resource->req_lock); in tl_restart()
275 void tl_clear(struct drbd_connection *connection) in tl_clear() argument
277 tl_restart(connection, CONNECTION_LOST_WHILE_PENDING); in tl_clear()
286 struct drbd_connection *connection = first_peer_device(device)->connection; in tl_abort_disk_io() local
289 spin_lock_irq(&connection->resource->req_lock); in tl_abort_disk_io()
290 list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) { in tl_abort_disk_io()
297 spin_unlock_irq(&connection->resource->req_lock); in tl_abort_disk_io()
345 if (thi->connection) in drbd_thread_setup()
346 kref_put(&thi->connection->kref, drbd_destroy_connection); in drbd_thread_setup()
360 thi->connection = NULL; in drbd_thread_init()
387 if (thi->connection) in drbd_thread_start()
388 kref_get(&thi->connection->kref); in drbd_thread_start()
402 if (thi->connection) in drbd_thread_start()
403 kref_put(&thi->connection->kref, drbd_destroy_connection); in drbd_thread_start()
531 unsigned int drbd_header_size(struct drbd_connection *connection) in drbd_header_size() argument
533 if (connection->agreed_pro_version >= 100) { in drbd_header_size()
571 static unsigned int prepare_header(struct drbd_connection *connection, int vnr, in prepare_header() argument
574 if (connection->agreed_pro_version >= 100) in prepare_header()
576 else if (connection->agreed_pro_version >= 95 && in prepare_header()
583 static void *__conn_prepare_command(struct drbd_connection *connection, in __conn_prepare_command() argument
588 return sock->sbuf + drbd_header_size(connection); in __conn_prepare_command()
591 void *conn_prepare_command(struct drbd_connection *connection, struct drbd_socket *sock) in conn_prepare_command() argument
596 p = __conn_prepare_command(connection, sock); in conn_prepare_command()
605 return conn_prepare_command(peer_device->connection, sock); in drbd_prepare_command()
608 static int __send_command(struct drbd_connection *connection, int vnr, in __send_command() argument
625 header_size += prepare_header(connection, vnr, sock->sbuf, cmd, in __send_command()
627 err = drbd_send_all(connection, sock->socket, sock->sbuf, header_size, in __send_command()
630 err = drbd_send_all(connection, sock->socket, data, size, 0); in __send_command()
639 static int __conn_send_command(struct drbd_connection *connection, struct drbd_socket *sock, in __conn_send_command() argument
643 return __send_command(connection, 0, sock, cmd, header_size, data, size); in __conn_send_command()
646 int conn_send_command(struct drbd_connection *connection, struct drbd_socket *sock, in conn_send_command() argument
652 err = __conn_send_command(connection, sock, cmd, header_size, data, size); in conn_send_command()
663 err = __send_command(peer_device->connection, peer_device->device->vnr, in drbd_send_command()
669 int drbd_send_ping(struct drbd_connection *connection) in drbd_send_ping() argument
673 sock = &connection->meta; in drbd_send_ping()
674 if (!conn_prepare_command(connection, sock)) in drbd_send_ping()
676 return conn_send_command(connection, sock, P_PING, 0, NULL, 0); in drbd_send_ping()
679 int drbd_send_ping_ack(struct drbd_connection *connection) in drbd_send_ping_ack() argument
683 sock = &connection->meta; in drbd_send_ping_ack()
684 if (!conn_prepare_command(connection, sock)) in drbd_send_ping_ack()
686 return conn_send_command(connection, sock, P_PING_ACK, 0, NULL, 0); in drbd_send_ping_ack()
694 const int apv = peer_device->connection->agreed_pro_version; in drbd_send_sync_param()
699 sock = &peer_device->connection->data; in drbd_send_sync_param()
705 nc = rcu_dereference(peer_device->connection->net_conf); in drbd_send_sync_param()
744 int __drbd_send_protocol(struct drbd_connection *connection, enum drbd_packet cmd) in __drbd_send_protocol() argument
752 sock = &connection->data; in __drbd_send_protocol()
753 p = __conn_prepare_command(connection, sock); in __drbd_send_protocol()
758 nc = rcu_dereference(connection->net_conf); in __drbd_send_protocol()
760 if (nc->tentative && connection->agreed_pro_version < 92) { in __drbd_send_protocol()
762 drbd_err(connection, "--dry-run is not supported by peer"); in __drbd_send_protocol()
767 if (connection->agreed_pro_version >= 87) { in __drbd_send_protocol()
784 if (connection->agreed_pro_version >= 87) in __drbd_send_protocol()
788 return __conn_send_command(connection, sock, cmd, size, NULL, 0); in __drbd_send_protocol()
791 int drbd_send_protocol(struct drbd_connection *connection) in drbd_send_protocol() argument
795 mutex_lock(&connection->data.mutex); in drbd_send_protocol()
796 err = __drbd_send_protocol(connection, P_PROTOCOL); in drbd_send_protocol()
797 mutex_unlock(&connection->data.mutex); in drbd_send_protocol()
812 sock = &peer_device->connection->data; in _drbd_send_uuids()
826 uuid_flags |= rcu_dereference(peer_device->connection->net_conf)->discard_my_data ? 1 : 0; in _drbd_send_uuids()
882 sock = &peer_device->connection->data; in drbd_gen_and_send_sync_uuid()
900 sock = &peer_device->connection->data; in drbd_send_sizes()
906 if (peer_device->connection->agreed_features & DRBD_FF_WSAME) in drbd_send_sizes()
949 if (peer_device->connection->agreed_pro_version <= 94) in drbd_send_sizes()
951 else if (peer_device->connection->agreed_pro_version < 100) in drbd_send_sizes()
976 sock = &peer_device->connection->data; in drbd_send_current_state()
999 sock = &peer_device->connection->data; in drbd_send_state()
1012 sock = &peer_device->connection->data; in drbd_send_state_req()
1021 int conn_send_state_req(struct drbd_connection *connection, union drbd_state mask, union drbd_state… in conn_send_state_req() argument
1027 cmd = connection->agreed_pro_version < 100 ? P_STATE_CHG_REQ : P_CONN_ST_CHG_REQ; in conn_send_state_req()
1028 sock = &connection->data; in conn_send_state_req()
1029 p = conn_prepare_command(connection, sock); in conn_send_state_req()
1034 return conn_send_command(connection, sock, cmd, sizeof(*p), NULL, 0); in conn_send_state_req()
1042 sock = &peer_device->connection->meta; in drbd_send_sr_reply()
1050 void conn_send_sr_reply(struct drbd_connection *connection, enum drbd_state_rv retcode) in conn_send_sr_reply() argument
1054 …enum drbd_packet cmd = connection->agreed_pro_version < 100 ? P_STATE_CHG_REPLY : P_CONN_ST_CHG_RE… in conn_send_sr_reply()
1056 sock = &connection->meta; in conn_send_sr_reply()
1057 p = conn_prepare_command(connection, sock); in conn_send_sr_reply()
1060 conn_send_command(connection, sock, cmd, sizeof(*p), NULL, 0); in conn_send_sr_reply()
1096 use_rle = rcu_dereference(first_peer_device(device)->connection->net_conf)->use_rle; in fill_bitmap_rle_bits()
1098 if (!use_rle || first_peer_device(device)->connection->agreed_pro_version < 90) in fill_bitmap_rle_bits()
1188 struct drbd_socket *sock = &peer_device->connection->data; in send_bitmap_rle_or_plain()
1189 unsigned int header_size = drbd_header_size(peer_device->connection); in send_bitmap_rle_or_plain()
1200 err = __send_command(peer_device->connection, device->vnr, sock, in send_bitmap_rle_or_plain()
1221 err = __send_command(peer_device->connection, device->vnr, sock, P_BITMAP, in send_bitmap_rle_or_plain()
1283 struct drbd_socket *sock = &peer_device->connection->data; in drbd_send_bitmap()
1293 void drbd_send_b_ack(struct drbd_connection *connection, u32 barrier_nr, u32 set_size) in drbd_send_b_ack() argument
1298 if (connection->cstate < C_WF_REPORT_PARAMS) in drbd_send_b_ack()
1301 sock = &connection->meta; in drbd_send_b_ack()
1302 p = conn_prepare_command(connection, sock); in drbd_send_b_ack()
1307 conn_send_command(connection, sock, P_BARRIER_ACK, sizeof(*p), NULL, 0); in drbd_send_b_ack()
1327 sock = &peer_device->connection->meta; in _drbd_send_ack()
1344 if (peer_device->connection->peer_integrity_tfm) in drbd_send_ack_dp()
1345 data_size -= crypto_shash_digestsize(peer_device->connection->peer_integrity_tfm); in drbd_send_ack_dp()
1388 sock = &peer_device->connection->data; in drbd_send_rs_deallocated()
1404 sock = &peer_device->connection->data; in drbd_send_drequest()
1422 sock = &peer_device->connection->data; in drbd_send_drequest_csum()
1437 sock = &peer_device->connection->data; in drbd_send_ov_request()
1451 static int we_should_drop_the_connection(struct drbd_connection *connection, struct socket *sock) in we_should_drop_the_connection() argument
1456 drop_it = connection->meta.socket == sock in we_should_drop_the_connection()
1457 || !connection->ack_receiver.task in we_should_drop_the_connection()
1458 || get_t_state(&connection->ack_receiver) != RUNNING in we_should_drop_the_connection()
1459 || connection->cstate < C_WF_REPORT_PARAMS; in we_should_drop_the_connection()
1464 drop_it = !--connection->ko_count; in we_should_drop_the_connection()
1466 drbd_err(connection, "[%s/%d] sock_sendmsg time expired, ko = %u\n", in we_should_drop_the_connection()
1467 current->comm, current->pid, connection->ko_count); in we_should_drop_the_connection()
1468 request_ping(connection); in we_should_drop_the_connection()
1474 static void drbd_update_congested(struct drbd_connection *connection) in drbd_update_congested() argument
1476 struct sock *sk = connection->data.socket->sk; in drbd_update_congested()
1478 set_bit(NET_CONGESTED, &connection->flags); in drbd_update_congested()
1509 socket = peer_device->connection->data.socket; in _drbd_no_send_page()
1511 err = drbd_send_all(peer_device->connection, socket, addr, size, msg_flags); in _drbd_no_send_page()
1521 struct socket *socket = peer_device->connection->data.socket; in _drbd_send_page()
1536 drbd_update_congested(peer_device->connection); in _drbd_send_page()
1546 if (we_should_drop_the_connection(peer_device->connection, socket)) in _drbd_send_page()
1559 clear_bit(NET_CONGESTED, &peer_device->connection->flags); in _drbd_send_page()
1631 static u32 bio_flags_to_wire(struct drbd_connection *connection, in bio_flags_to_wire() argument
1634 if (connection->agreed_pro_version >= 95) in bio_flags_to_wire()
1640 ((connection->agreed_features & DRBD_FF_WZEROES) ? in bio_flags_to_wire()
1661 sock = &peer_device->connection->data; in drbd_send_dblock()
1663 digest_size = peer_device->connection->integrity_tfm ? in drbd_send_dblock()
1664 crypto_shash_digestsize(peer_device->connection->integrity_tfm) : 0; in drbd_send_dblock()
1671 dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio); in drbd_send_dblock()
1675 if (peer_device->connection->agreed_pro_version >= 100) { in drbd_send_dblock()
1690 err = __send_command(peer_device->connection, device->vnr, sock, cmd, sizeof(*t), NULL, 0); in drbd_send_dblock()
1698 drbd_csum_bio(peer_device->connection->integrity_tfm, req->master_bio, digest_out); in drbd_send_dblock()
1699 err = __send_command(peer_device->connection, device->vnr, sock, P_DATA, in drbd_send_dblock()
1723 drbd_csum_bio(peer_device->connection->integrity_tfm, req->master_bio, digest); in drbd_send_dblock()
1752 sock = &peer_device->connection->data; in drbd_send_block()
1755 digest_size = peer_device->connection->integrity_tfm ? in drbd_send_block()
1756 crypto_shash_digestsize(peer_device->connection->integrity_tfm) : 0; in drbd_send_block()
1765 drbd_csum_ee(peer_device->connection->integrity_tfm, peer_req, p + 1); in drbd_send_block()
1766 …err = __send_command(peer_device->connection, device->vnr, sock, cmd, sizeof(*p) + digest_size, NU… in drbd_send_block()
1779 sock = &peer_device->connection->data; in drbd_send_out_of_sync()
1804 int drbd_send(struct drbd_connection *connection, struct socket *sock, in drbd_send() argument
1818 if (sock == connection->data.socket) { in drbd_send()
1820 connection->ko_count = rcu_dereference(connection->net_conf)->ko_count; in drbd_send()
1822 drbd_update_congested(connection); in drbd_send()
1827 if (we_should_drop_the_connection(connection, sock)) in drbd_send()
1841 if (sock == connection->data.socket) in drbd_send()
1842 clear_bit(NET_CONGESTED, &connection->flags); in drbd_send()
1846 drbd_err(connection, "%s_sendmsg returned %d\n", in drbd_send()
1847 sock == connection->meta.socket ? "msock" : "sock", in drbd_send()
1849 conn_request_state(connection, NS(conn, C_BROKEN_PIPE), CS_HARD); in drbd_send()
1851 conn_request_state(connection, NS(conn, C_TIMEOUT), CS_HARD); in drbd_send()
1862 int drbd_send_all(struct drbd_connection *connection, struct socket *sock, void *buffer, in drbd_send_all() argument
1867 err = drbd_send(connection, sock, buffer, size, msg_flags); in drbd_send_all()
1917 &first_peer_device(device)->connection->sender_work, in drbd_queue_unplug()
2007 if (first_peer_device(device)->connection->receiver.t_state != NONE) in drbd_device_cleanup()
2009 first_peer_device(device)->connection->receiver.t_state); in drbd_device_cleanup()
2027 D_ASSERT(device, first_peer_device(device)->connection->net_conf == NULL); in drbd_device_cleanup()
2046 D_ASSERT(device, list_empty(&first_peer_device(device)->connection->sender_work.q)); in drbd_device_cleanup()
2195 kref_put(&peer_device->connection->kref, drbd_destroy_connection); in drbd_destroy_device()
2296 struct drbd_connection *connection, *tmp; in drbd_free_resource() local
2298 for_each_connection_safe(connection, tmp, resource) { in drbd_free_resource()
2299 list_del(&connection->connections); in drbd_free_resource()
2300 drbd_debugfs_connection_cleanup(connection); in drbd_free_resource()
2301 kref_put(&connection->kref, drbd_destroy_connection); in drbd_free_resource()
2403 struct drbd_connection *connection; in conn_get_by_addrs() local
2407 for_each_connection_rcu(connection, resource) { in conn_get_by_addrs()
2408 if (connection->my_addr_len == my_addr_len && in conn_get_by_addrs()
2409 connection->peer_addr_len == peer_addr_len && in conn_get_by_addrs()
2410 !memcmp(&connection->my_addr, my_addr, my_addr_len) && in conn_get_by_addrs()
2411 !memcmp(&connection->peer_addr, peer_addr, peer_addr_len)) { in conn_get_by_addrs()
2412 kref_get(&connection->kref); in conn_get_by_addrs()
2417 connection = NULL; in conn_get_by_addrs()
2420 return connection; in conn_get_by_addrs()
2440 void conn_free_crypto(struct drbd_connection *connection) in conn_free_crypto() argument
2442 drbd_free_sock(connection); in conn_free_crypto()
2444 crypto_free_shash(connection->csums_tfm); in conn_free_crypto()
2445 crypto_free_shash(connection->verify_tfm); in conn_free_crypto()
2446 crypto_free_shash(connection->cram_hmac_tfm); in conn_free_crypto()
2447 crypto_free_shash(connection->integrity_tfm); in conn_free_crypto()
2448 crypto_free_shash(connection->peer_integrity_tfm); in conn_free_crypto()
2449 kfree(connection->int_dig_in); in conn_free_crypto()
2450 kfree(connection->int_dig_vv); in conn_free_crypto()
2452 connection->csums_tfm = NULL; in conn_free_crypto()
2453 connection->verify_tfm = NULL; in conn_free_crypto()
2454 connection->cram_hmac_tfm = NULL; in conn_free_crypto()
2455 connection->integrity_tfm = NULL; in conn_free_crypto()
2456 connection->peer_integrity_tfm = NULL; in conn_free_crypto()
2457 connection->int_dig_in = NULL; in conn_free_crypto()
2458 connection->int_dig_vv = NULL; in conn_free_crypto()
2463 struct drbd_connection *connection; in set_resource_options() local
2499 for_each_connection_rcu(connection, resource) { in set_resource_options()
2500 connection->receiver.reset_cpu_mask = 1; in set_resource_options()
2501 connection->ack_receiver.reset_cpu_mask = 1; in set_resource_options()
2502 connection->worker.reset_cpu_mask = 1; in set_resource_options()
2548 struct drbd_connection *connection; in conn_create() local
2550 connection = kzalloc_obj(struct drbd_connection); in conn_create()
2551 if (!connection) in conn_create()
2554 if (drbd_alloc_socket(&connection->data)) in conn_create()
2556 if (drbd_alloc_socket(&connection->meta)) in conn_create()
2559 connection->current_epoch = kzalloc_obj(struct drbd_epoch); in conn_create()
2560 if (!connection->current_epoch) in conn_create()
2563 INIT_LIST_HEAD(&connection->transfer_log); in conn_create()
2565 INIT_LIST_HEAD(&connection->current_epoch->list); in conn_create()
2566 connection->epochs = 1; in conn_create()
2567 spin_lock_init(&connection->epoch_lock); in conn_create()
2569 connection->send.seen_any_write_yet = false; in conn_create()
2570 connection->send.current_epoch_nr = 0; in conn_create()
2571 connection->send.current_epoch_writes = 0; in conn_create()
2577 connection->cstate = C_STANDALONE; in conn_create()
2578 mutex_init(&connection->cstate_mutex); in conn_create()
2579 init_waitqueue_head(&connection->ping_wait); in conn_create()
2580 idr_init(&connection->peer_devices); in conn_create()
2582 drbd_init_workqueue(&connection->sender_work); in conn_create()
2583 mutex_init(&connection->data.mutex); in conn_create()
2584 mutex_init(&connection->meta.mutex); in conn_create()
2586 drbd_thread_init(resource, &connection->receiver, drbd_receiver, "receiver"); in conn_create()
2587 connection->receiver.connection = connection; in conn_create()
2588 drbd_thread_init(resource, &connection->worker, drbd_worker, "worker"); in conn_create()
2589 connection->worker.connection = connection; in conn_create()
2590 drbd_thread_init(resource, &connection->ack_receiver, drbd_ack_receiver, "ack_recv"); in conn_create()
2591 connection->ack_receiver.connection = connection; in conn_create()
2593 kref_init(&connection->kref); in conn_create()
2595 connection->resource = resource; in conn_create()
2601 list_add_tail_rcu(&connection->connections, &resource->connections); in conn_create()
2602 drbd_debugfs_connection_add(connection); in conn_create()
2603 return connection; in conn_create()
2609 kfree(connection->current_epoch); in conn_create()
2610 drbd_free_socket(&connection->meta); in conn_create()
2611 drbd_free_socket(&connection->data); in conn_create()
2612 kfree(connection); in conn_create()
2618 struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref); in drbd_destroy_connection() local
2619 struct drbd_resource *resource = connection->resource; in drbd_destroy_connection()
2621 if (atomic_read(&connection->current_epoch->epoch_size) != 0) in drbd_destroy_connection()
2622 drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size)); in drbd_destroy_connection()
2623 kfree(connection->current_epoch); in drbd_destroy_connection()
2625 idr_destroy(&connection->peer_devices); in drbd_destroy_connection()
2627 drbd_free_socket(&connection->meta); in drbd_destroy_connection()
2628 drbd_free_socket(&connection->data); in drbd_destroy_connection()
2629 kfree(connection->int_dig_in); in drbd_destroy_connection()
2630 kfree(connection->int_dig_vv); in drbd_destroy_connection()
2631 kfree(connection); in drbd_destroy_connection()
2652 struct drbd_connection *connection, *n; in drbd_create_device() local
2731 for_each_connection(connection, resource) { in drbd_create_device()
2735 peer_device->connection = connection; in drbd_create_device()
2741 id = idr_alloc(&connection->peer_devices, peer_device, vnr, vnr + 1, GFP_KERNEL); in drbd_create_device()
2747 kref_get(&connection->kref); in drbd_create_device()
2775 for_each_connection_safe(connection, n, resource) { in drbd_create_device()
2776 peer_device = idr_remove(&connection->peer_devices, vnr); in drbd_create_device()
2778 kref_put(&connection->kref, drbd_destroy_connection); in drbd_create_device()
2803 struct drbd_connection *connection; in drbd_delete_device() local
2810 for_each_connection(connection, resource) { in drbd_delete_device()
2811 idr_remove(&connection->peer_devices, device->vnr); in drbd_delete_device()
2908 void drbd_free_sock(struct drbd_connection *connection) in drbd_free_sock() argument
2910 if (connection->data.socket) in drbd_free_sock()
2911 drbd_free_one_sock(&connection->data); in drbd_free_sock()
2912 if (connection->meta.socket) in drbd_free_sock()
2913 drbd_free_one_sock(&connection->meta); in drbd_free_sock()
2918 void conn_md_sync(struct drbd_connection *connection) in conn_md_sync() argument
2924 idr_for_each_entry(&connection->peer_devices, peer_device, vnr) { in conn_md_sync()
3482 D_ASSERT(device, current == peer_device->connection->worker.task); in drbd_queue_bitmap_io()
3503 drbd_queue_work(&peer_device->connection->sender_work, in drbd_queue_bitmap_io()
3529 D_ASSERT(device, current != first_peer_device(device)->connection->worker.task); in drbd_bitmap_io()
3658 nc = rcu_dereference(first_peer_device(device)->connection->net_conf); in drbd_wait_misc()