Lines Matching refs:connection
194 void tl_release(struct drbd_connection *connection, unsigned int barrier_nr, in tl_release() argument
202 spin_lock_irq(&connection->resource->req_lock); in tl_release()
206 list_for_each_entry(r, &connection->transfer_log, tl_requests) { in tl_release()
231 drbd_err(connection, "BAD! BarrierAck #%u received, but no epoch in tl!?\n", in tl_release()
236 drbd_err(connection, "BAD! BarrierAck #%u received, expected #%u!\n", in tl_release()
242 drbd_err(connection, "BAD! BarrierAck #%u received with n_writes=%u, expected n_writes=%u!\n", in tl_release()
251 list_for_each_entry(req, &connection->transfer_log, tl_requests) in tl_release()
254 list_for_each_entry_safe_from(req, r, &connection->transfer_log, tl_requests) { in tl_release()
259 spin_unlock_irq(&connection->resource->req_lock); in tl_release()
264 spin_unlock_irq(&connection->resource->req_lock); in tl_release()
265 conn_request_state(connection, NS(conn, C_PROTOCOL_ERROR), CS_HARD); in tl_release()
278 void _tl_restart(struct drbd_connection *connection, enum drbd_req_event what) in _tl_restart() argument
282 list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) in _tl_restart()
286 void tl_restart(struct drbd_connection *connection, enum drbd_req_event what) in tl_restart() argument
288 spin_lock_irq(&connection->resource->req_lock); in tl_restart()
289 _tl_restart(connection, what); in tl_restart()
290 spin_unlock_irq(&connection->resource->req_lock); in tl_restart()
301 void tl_clear(struct drbd_connection *connection) in tl_clear() argument
303 tl_restart(connection, CONNECTION_LOST_WHILE_PENDING); in tl_clear()
312 struct drbd_connection *connection = first_peer_device(device)->connection; in tl_abort_disk_io() local
315 spin_lock_irq(&connection->resource->req_lock); in tl_abort_disk_io()
316 list_for_each_entry_safe(req, r, &connection->transfer_log, tl_requests) { in tl_abort_disk_io()
323 spin_unlock_irq(&connection->resource->req_lock); in tl_abort_disk_io()
369 if (thi->connection) in drbd_thread_setup()
370 kref_put(&thi->connection->kref, drbd_destroy_connection); in drbd_thread_setup()
384 thi->connection = NULL; in drbd_thread_init()
411 if (thi->connection) in drbd_thread_start()
412 kref_get(&thi->connection->kref); in drbd_thread_start()
426 if (thi->connection) in drbd_thread_start()
427 kref_put(&thi->connection->kref, drbd_destroy_connection); in drbd_thread_start()
489 int conn_lowest_minor(struct drbd_connection *connection) in conn_lowest_minor() argument
495 peer_device = idr_get_next(&connection->peer_devices, &vnr); in conn_lowest_minor()
570 unsigned int drbd_header_size(struct drbd_connection *connection) in drbd_header_size() argument
572 if (connection->agreed_pro_version >= 100) { in drbd_header_size()
610 static unsigned int prepare_header(struct drbd_connection *connection, int vnr, in prepare_header() argument
613 if (connection->agreed_pro_version >= 100) in prepare_header()
615 else if (connection->agreed_pro_version >= 95 && in prepare_header()
622 static void *__conn_prepare_command(struct drbd_connection *connection, in __conn_prepare_command() argument
627 return sock->sbuf + drbd_header_size(connection); in __conn_prepare_command()
630 void *conn_prepare_command(struct drbd_connection *connection, struct drbd_socket *sock) in conn_prepare_command() argument
635 p = __conn_prepare_command(connection, sock); in conn_prepare_command()
644 return conn_prepare_command(peer_device->connection, sock); in drbd_prepare_command()
647 static int __send_command(struct drbd_connection *connection, int vnr, in __send_command() argument
664 header_size += prepare_header(connection, vnr, sock->sbuf, cmd, in __send_command()
666 err = drbd_send_all(connection, sock->socket, sock->sbuf, header_size, in __send_command()
669 err = drbd_send_all(connection, sock->socket, data, size, 0); in __send_command()
678 static int __conn_send_command(struct drbd_connection *connection, struct drbd_socket *sock, in __conn_send_command() argument
682 return __send_command(connection, 0, sock, cmd, header_size, data, size); in __conn_send_command()
685 int conn_send_command(struct drbd_connection *connection, struct drbd_socket *sock, in conn_send_command() argument
691 err = __conn_send_command(connection, sock, cmd, header_size, data, size); in conn_send_command()
702 err = __send_command(peer_device->connection, peer_device->device->vnr, in drbd_send_command()
708 int drbd_send_ping(struct drbd_connection *connection) in drbd_send_ping() argument
712 sock = &connection->meta; in drbd_send_ping()
713 if (!conn_prepare_command(connection, sock)) in drbd_send_ping()
715 return conn_send_command(connection, sock, P_PING, 0, NULL, 0); in drbd_send_ping()
718 int drbd_send_ping_ack(struct drbd_connection *connection) in drbd_send_ping_ack() argument
722 sock = &connection->meta; in drbd_send_ping_ack()
723 if (!conn_prepare_command(connection, sock)) in drbd_send_ping_ack()
725 return conn_send_command(connection, sock, P_PING_ACK, 0, NULL, 0); in drbd_send_ping_ack()
733 const int apv = peer_device->connection->agreed_pro_version; in drbd_send_sync_param()
738 sock = &peer_device->connection->data; in drbd_send_sync_param()
744 nc = rcu_dereference(peer_device->connection->net_conf); in drbd_send_sync_param()
782 int __drbd_send_protocol(struct drbd_connection *connection, enum drbd_packet cmd) in __drbd_send_protocol() argument
789 sock = &connection->data; in __drbd_send_protocol()
790 p = __conn_prepare_command(connection, sock); in __drbd_send_protocol()
795 nc = rcu_dereference(connection->net_conf); in __drbd_send_protocol()
797 if (nc->tentative && connection->agreed_pro_version < 92) { in __drbd_send_protocol()
800 drbd_err(connection, "--dry-run is not supported by peer"); in __drbd_send_protocol()
805 if (connection->agreed_pro_version >= 87) in __drbd_send_protocol()
820 if (connection->agreed_pro_version >= 87) in __drbd_send_protocol()
824 return __conn_send_command(connection, sock, cmd, size, NULL, 0); in __drbd_send_protocol()
827 int drbd_send_protocol(struct drbd_connection *connection) in drbd_send_protocol() argument
831 mutex_lock(&connection->data.mutex); in drbd_send_protocol()
832 err = __drbd_send_protocol(connection, P_PROTOCOL); in drbd_send_protocol()
833 mutex_unlock(&connection->data.mutex); in drbd_send_protocol()
848 sock = &peer_device->connection->data; in _drbd_send_uuids()
862 uuid_flags |= rcu_dereference(peer_device->connection->net_conf)->discard_my_data ? 1 : 0; in _drbd_send_uuids()
918 sock = &peer_device->connection->data; in drbd_gen_and_send_sync_uuid()
961 sock = &peer_device->connection->data; in drbd_send_sizes()
967 if (peer_device->connection->agreed_features & DRBD_FF_WSAME) in drbd_send_sizes()
990 if (peer_device->connection->agreed_pro_version <= 94) in drbd_send_sizes()
992 else if (peer_device->connection->agreed_pro_version < 100) in drbd_send_sizes()
1014 sock = &peer_device->connection->data; in drbd_send_current_state()
1037 sock = &peer_device->connection->data; in drbd_send_state()
1050 sock = &peer_device->connection->data; in drbd_send_state_req()
1059 int conn_send_state_req(struct drbd_connection *connection, union drbd_state mask, union drbd_state… in conn_send_state_req() argument
1065 cmd = connection->agreed_pro_version < 100 ? P_STATE_CHG_REQ : P_CONN_ST_CHG_REQ; in conn_send_state_req()
1066 sock = &connection->data; in conn_send_state_req()
1067 p = conn_prepare_command(connection, sock); in conn_send_state_req()
1072 return conn_send_command(connection, sock, cmd, sizeof(*p), NULL, 0); in conn_send_state_req()
1080 sock = &peer_device->connection->meta; in drbd_send_sr_reply()
1088 void conn_send_sr_reply(struct drbd_connection *connection, enum drbd_state_rv retcode) in conn_send_sr_reply() argument
1092 …enum drbd_packet cmd = connection->agreed_pro_version < 100 ? P_STATE_CHG_REPLY : P_CONN_ST_CHG_RE… in conn_send_sr_reply()
1094 sock = &connection->meta; in conn_send_sr_reply()
1095 p = conn_prepare_command(connection, sock); in conn_send_sr_reply()
1098 conn_send_command(connection, sock, cmd, sizeof(*p), NULL, 0); in conn_send_sr_reply()
1134 use_rle = rcu_dereference(first_peer_device(device)->connection->net_conf)->use_rle; in fill_bitmap_rle_bits()
1136 if (!use_rle || first_peer_device(device)->connection->agreed_pro_version < 90) in fill_bitmap_rle_bits()
1225 struct drbd_socket *sock = &first_peer_device(device)->connection->data; in send_bitmap_rle_or_plain()
1226 unsigned int header_size = drbd_header_size(first_peer_device(device)->connection); in send_bitmap_rle_or_plain()
1237 err = __send_command(first_peer_device(device)->connection, device->vnr, sock, in send_bitmap_rle_or_plain()
1258 …err = __send_command(first_peer_device(device)->connection, device->vnr, sock, P_BITMAP, len, NULL… in send_bitmap_rle_or_plain()
1318 struct drbd_socket *sock = &first_peer_device(device)->connection->data; in drbd_send_bitmap()
1328 void drbd_send_b_ack(struct drbd_connection *connection, u32 barrier_nr, u32 set_size) in drbd_send_b_ack() argument
1333 if (connection->cstate < C_WF_REPORT_PARAMS) in drbd_send_b_ack()
1336 sock = &connection->meta; in drbd_send_b_ack()
1337 p = conn_prepare_command(connection, sock); in drbd_send_b_ack()
1342 conn_send_command(connection, sock, P_BARRIER_ACK, sizeof(*p), NULL, 0); in drbd_send_b_ack()
1362 sock = &peer_device->connection->meta; in _drbd_send_ack()
1379 if (peer_device->connection->peer_integrity_tfm) in drbd_send_ack_dp()
1380 data_size -= crypto_ahash_digestsize(peer_device->connection->peer_integrity_tfm); in drbd_send_ack_dp()
1423 sock = &peer_device->connection->data; in drbd_send_rs_deallocated()
1439 sock = &peer_device->connection->data; in drbd_send_drequest()
1457 sock = &peer_device->connection->data; in drbd_send_drequest_csum()
1472 sock = &peer_device->connection->data; in drbd_send_ov_request()
1486 static int we_should_drop_the_connection(struct drbd_connection *connection, struct socket *sock) in we_should_drop_the_connection() argument
1491 drop_it = connection->meta.socket == sock in we_should_drop_the_connection()
1492 || !connection->ack_receiver.task in we_should_drop_the_connection()
1493 || get_t_state(&connection->ack_receiver) != RUNNING in we_should_drop_the_connection()
1494 || connection->cstate < C_WF_REPORT_PARAMS; in we_should_drop_the_connection()
1499 drop_it = !--connection->ko_count; in we_should_drop_the_connection()
1501 drbd_err(connection, "[%s/%d] sock_sendmsg time expired, ko = %u\n", in we_should_drop_the_connection()
1502 current->comm, current->pid, connection->ko_count); in we_should_drop_the_connection()
1503 request_ping(connection); in we_should_drop_the_connection()
1509 static void drbd_update_congested(struct drbd_connection *connection) in drbd_update_congested() argument
1511 struct sock *sk = connection->data.socket->sk; in drbd_update_congested()
1513 set_bit(NET_CONGESTED, &connection->flags); in drbd_update_congested()
1544 socket = peer_device->connection->data.socket; in _drbd_no_send_page()
1546 err = drbd_send_all(peer_device->connection, socket, addr, size, msg_flags); in _drbd_no_send_page()
1556 struct socket *socket = peer_device->connection->data.socket; in _drbd_send_page()
1570 drbd_update_congested(peer_device->connection); in _drbd_send_page()
1577 if (we_should_drop_the_connection(peer_device->connection, socket)) in _drbd_send_page()
1590 clear_bit(NET_CONGESTED, &peer_device->connection->flags); in _drbd_send_page()
1662 static u32 bio_flags_to_wire(struct drbd_connection *connection, in bio_flags_to_wire() argument
1665 if (connection->agreed_pro_version >= 95) in bio_flags_to_wire()
1690 sock = &peer_device->connection->data; in drbd_send_dblock()
1692 digest_size = peer_device->connection->integrity_tfm ? in drbd_send_dblock()
1693 crypto_ahash_digestsize(peer_device->connection->integrity_tfm) : 0; in drbd_send_dblock()
1700 dp_flags = bio_flags_to_wire(peer_device->connection, req->master_bio); in drbd_send_dblock()
1704 if (peer_device->connection->agreed_pro_version >= 100) { in drbd_send_dblock()
1718 err = __send_command(peer_device->connection, device->vnr, sock, P_TRIM, sizeof(*t), NULL, 0); in drbd_send_dblock()
1734 drbd_csum_bio(peer_device->connection->integrity_tfm, req->master_bio, digest_out); in drbd_send_dblock()
1737 __send_command(peer_device->connection, device->vnr, sock, P_WSAME, in drbd_send_dblock()
1742 __send_command(peer_device->connection, device->vnr, sock, P_DATA, in drbd_send_dblock()
1766 drbd_csum_bio(peer_device->connection->integrity_tfm, req->master_bio, digest); in drbd_send_dblock()
1795 sock = &peer_device->connection->data; in drbd_send_block()
1798 digest_size = peer_device->connection->integrity_tfm ? in drbd_send_block()
1799 crypto_ahash_digestsize(peer_device->connection->integrity_tfm) : 0; in drbd_send_block()
1808 drbd_csum_ee(peer_device->connection->integrity_tfm, peer_req, p + 1); in drbd_send_block()
1809 …err = __send_command(peer_device->connection, device->vnr, sock, cmd, sizeof(*p) + digest_size, NU… in drbd_send_block()
1822 sock = &peer_device->connection->data; in drbd_send_out_of_sync()
1847 int drbd_send(struct drbd_connection *connection, struct socket *sock, in drbd_send() argument
1861 if (sock == connection->data.socket) { in drbd_send()
1863 connection->ko_count = rcu_dereference(connection->net_conf)->ko_count; in drbd_send()
1865 drbd_update_congested(connection); in drbd_send()
1870 if (we_should_drop_the_connection(connection, sock)) in drbd_send()
1884 if (sock == connection->data.socket) in drbd_send()
1885 clear_bit(NET_CONGESTED, &connection->flags); in drbd_send()
1889 drbd_err(connection, "%s_sendmsg returned %d\n", in drbd_send()
1890 sock == connection->meta.socket ? "msock" : "sock", in drbd_send()
1892 conn_request_state(connection, NS(conn, C_BROKEN_PIPE), CS_HARD); in drbd_send()
1894 conn_request_state(connection, NS(conn, C_TIMEOUT), CS_HARD); in drbd_send()
1905 int drbd_send_all(struct drbd_connection *connection, struct socket *sock, void *buffer, in drbd_send_all() argument
1910 err = drbd_send(connection, sock, buffer, size, msg_flags); in drbd_send_all()
1959 &first_peer_device(device)->connection->sender_work, in drbd_queue_unplug()
2040 if (first_peer_device(device)->connection->receiver.t_state != NONE) in drbd_device_cleanup()
2042 first_peer_device(device)->connection->receiver.t_state); in drbd_device_cleanup()
2060 D_ASSERT(device, first_peer_device(device)->connection->net_conf == NULL); in drbd_device_cleanup()
2080 D_ASSERT(device, list_empty(&first_peer_device(device)->connection->sender_work.q)); in drbd_device_cleanup()
2254 kref_put(&peer_device->connection->kref, drbd_destroy_connection); in drbd_destroy_device()
2356 struct drbd_connection *connection, *tmp; in drbd_free_resource() local
2358 for_each_connection_safe(connection, tmp, resource) { in drbd_free_resource()
2359 list_del(&connection->connections); in drbd_free_resource()
2360 drbd_debugfs_connection_cleanup(connection); in drbd_free_resource()
2361 kref_put(&connection->kref, drbd_destroy_connection); in drbd_free_resource()
2429 if (test_bit(CALLBACK_PENDING, &first_peer_device(device)->connection->flags)) { in drbd_congested()
2454 test_bit(NET_CONGESTED, &first_peer_device(device)->connection->flags)) { in drbd_congested()
2519 struct drbd_connection *connection; in conn_get_by_addrs() local
2523 for_each_connection_rcu(connection, resource) { in conn_get_by_addrs()
2524 if (connection->my_addr_len == my_addr_len && in conn_get_by_addrs()
2525 connection->peer_addr_len == peer_addr_len && in conn_get_by_addrs()
2526 !memcmp(&connection->my_addr, my_addr, my_addr_len) && in conn_get_by_addrs()
2527 !memcmp(&connection->peer_addr, peer_addr, peer_addr_len)) { in conn_get_by_addrs()
2528 kref_get(&connection->kref); in conn_get_by_addrs()
2533 connection = NULL; in conn_get_by_addrs()
2536 return connection; in conn_get_by_addrs()
2556 void conn_free_crypto(struct drbd_connection *connection) in conn_free_crypto() argument
2558 drbd_free_sock(connection); in conn_free_crypto()
2560 crypto_free_ahash(connection->csums_tfm); in conn_free_crypto()
2561 crypto_free_ahash(connection->verify_tfm); in conn_free_crypto()
2562 crypto_free_shash(connection->cram_hmac_tfm); in conn_free_crypto()
2563 crypto_free_ahash(connection->integrity_tfm); in conn_free_crypto()
2564 crypto_free_ahash(connection->peer_integrity_tfm); in conn_free_crypto()
2565 kfree(connection->int_dig_in); in conn_free_crypto()
2566 kfree(connection->int_dig_vv); in conn_free_crypto()
2568 connection->csums_tfm = NULL; in conn_free_crypto()
2569 connection->verify_tfm = NULL; in conn_free_crypto()
2570 connection->cram_hmac_tfm = NULL; in conn_free_crypto()
2571 connection->integrity_tfm = NULL; in conn_free_crypto()
2572 connection->peer_integrity_tfm = NULL; in conn_free_crypto()
2573 connection->int_dig_in = NULL; in conn_free_crypto()
2574 connection->int_dig_vv = NULL; in conn_free_crypto()
2579 struct drbd_connection *connection; in set_resource_options() local
2615 for_each_connection_rcu(connection, resource) { in set_resource_options()
2616 connection->receiver.reset_cpu_mask = 1; in set_resource_options()
2617 connection->ack_receiver.reset_cpu_mask = 1; in set_resource_options()
2618 connection->worker.reset_cpu_mask = 1; in set_resource_options()
2664 struct drbd_connection *connection; in conn_create() local
2666 connection = kzalloc(sizeof(struct drbd_connection), GFP_KERNEL); in conn_create()
2667 if (!connection) in conn_create()
2670 if (drbd_alloc_socket(&connection->data)) in conn_create()
2672 if (drbd_alloc_socket(&connection->meta)) in conn_create()
2675 connection->current_epoch = kzalloc(sizeof(struct drbd_epoch), GFP_KERNEL); in conn_create()
2676 if (!connection->current_epoch) in conn_create()
2679 INIT_LIST_HEAD(&connection->transfer_log); in conn_create()
2681 INIT_LIST_HEAD(&connection->current_epoch->list); in conn_create()
2682 connection->epochs = 1; in conn_create()
2683 spin_lock_init(&connection->epoch_lock); in conn_create()
2685 connection->send.seen_any_write_yet = false; in conn_create()
2686 connection->send.current_epoch_nr = 0; in conn_create()
2687 connection->send.current_epoch_writes = 0; in conn_create()
2693 connection->cstate = C_STANDALONE; in conn_create()
2694 mutex_init(&connection->cstate_mutex); in conn_create()
2695 init_waitqueue_head(&connection->ping_wait); in conn_create()
2696 idr_init(&connection->peer_devices); in conn_create()
2698 drbd_init_workqueue(&connection->sender_work); in conn_create()
2699 mutex_init(&connection->data.mutex); in conn_create()
2700 mutex_init(&connection->meta.mutex); in conn_create()
2702 drbd_thread_init(resource, &connection->receiver, drbd_receiver, "receiver"); in conn_create()
2703 connection->receiver.connection = connection; in conn_create()
2704 drbd_thread_init(resource, &connection->worker, drbd_worker, "worker"); in conn_create()
2705 connection->worker.connection = connection; in conn_create()
2706 drbd_thread_init(resource, &connection->ack_receiver, drbd_ack_receiver, "ack_recv"); in conn_create()
2707 connection->ack_receiver.connection = connection; in conn_create()
2709 kref_init(&connection->kref); in conn_create()
2711 connection->resource = resource; in conn_create()
2717 list_add_tail_rcu(&connection->connections, &resource->connections); in conn_create()
2718 drbd_debugfs_connection_add(connection); in conn_create()
2719 return connection; in conn_create()
2725 kfree(connection->current_epoch); in conn_create()
2726 drbd_free_socket(&connection->meta); in conn_create()
2727 drbd_free_socket(&connection->data); in conn_create()
2728 kfree(connection); in conn_create()
2734 struct drbd_connection *connection = container_of(kref, struct drbd_connection, kref); in drbd_destroy_connection() local
2735 struct drbd_resource *resource = connection->resource; in drbd_destroy_connection()
2737 if (atomic_read(&connection->current_epoch->epoch_size) != 0) in drbd_destroy_connection()
2738 drbd_err(connection, "epoch_size:%d\n", atomic_read(&connection->current_epoch->epoch_size)); in drbd_destroy_connection()
2739 kfree(connection->current_epoch); in drbd_destroy_connection()
2741 idr_destroy(&connection->peer_devices); in drbd_destroy_connection()
2743 drbd_free_socket(&connection->meta); in drbd_destroy_connection()
2744 drbd_free_socket(&connection->data); in drbd_destroy_connection()
2745 kfree(connection->int_dig_in); in drbd_destroy_connection()
2746 kfree(connection->int_dig_vv); in drbd_destroy_connection()
2747 memset(connection, 0xfc, sizeof(*connection)); in drbd_destroy_connection()
2748 kfree(connection); in drbd_destroy_connection()
2769 struct drbd_connection *connection; in drbd_create_device() local
2855 for_each_connection(connection, resource) { in drbd_create_device()
2859 peer_device->connection = connection; in drbd_create_device()
2865 id = idr_alloc(&connection->peer_devices, peer_device, vnr, vnr + 1, GFP_KERNEL); in drbd_create_device()
2871 kref_get(&connection->kref); in drbd_create_device()
2895 idr_remove(&connection->peer_devices, vnr); in drbd_create_device()
2897 for_each_connection(connection, resource) { in drbd_create_device()
2898 peer_device = idr_remove(&connection->peer_devices, vnr); in drbd_create_device()
2900 kref_put(&connection->kref, drbd_destroy_connection); in drbd_create_device()
2927 struct drbd_connection *connection; in drbd_delete_device() local
2934 for_each_connection(connection, resource) { in drbd_delete_device()
2935 idr_remove(&connection->peer_devices, device->vnr); in drbd_delete_device()
3038 void drbd_free_sock(struct drbd_connection *connection) in drbd_free_sock() argument
3040 if (connection->data.socket) in drbd_free_sock()
3041 drbd_free_one_sock(&connection->data); in drbd_free_sock()
3042 if (connection->meta.socket) in drbd_free_sock()
3043 drbd_free_one_sock(&connection->meta); in drbd_free_sock()
3048 void conn_md_sync(struct drbd_connection *connection) in conn_md_sync() argument
3054 idr_for_each_entry(&connection->peer_devices, peer_device, vnr) { in conn_md_sync()
3612 D_ASSERT(device, current == first_peer_device(device)->connection->worker.task); in drbd_queue_bitmap_io()
3632 drbd_queue_work(&first_peer_device(device)->connection->sender_work, in drbd_queue_bitmap_io()
3654 D_ASSERT(device, current != first_peer_device(device)->connection->worker.task); in drbd_bitmap_io()
3782 nc = rcu_dereference(first_peer_device(device)->connection->net_conf); in drbd_wait_misc()