diff options
| author | Raghavendra G <raghavendra@gluster.com> | 2012-12-18 12:47:43 +0530 |
|---|---|---|
| committer | Vijay Bellur <vbellur@redhat.com> | 2013-05-17 00:18:36 -0700 |
| commit | 05d2d4a401cb2497185b091e666638e01f1d7f1d (patch) | |
| tree | 7e7baac4e16593d49822bc7007027c6aa906e633 /rpc/rpc-transport/rdma/src/rdma.c | |
| parent | b62e5ca7ed3b4ddb9b07dc16da1e295a4c28e01f (diff) | |
rpc-transport/rdma: use rdma-cm for connection establishment.
Till now gluster used tcp/ip based communication channel with
gluster specific protocol to exchange infiniband addresses.
Change-Id: I9de4db398a0e2af51d3d2d68c2fe42168102b190
BUG: 765051
Signed-off-by: Raghavendra G <raghavendra@gluster.com>
Reviewed-on: http://review.gluster.org/149
Tested-by: Gluster Build System <jenkins@build.gluster.com>
Reviewed-by: Vijay Bellur <vbellur@redhat.com>
Diffstat (limited to 'rpc/rpc-transport/rdma/src/rdma.c')
| -rw-r--r-- | rpc/rpc-transport/rdma/src/rdma.c | 2738 |
1 files changed, 1088 insertions, 1650 deletions
diff --git a/rpc/rpc-transport/rdma/src/rdma.c b/rpc/rpc-transport/rdma/src/rdma.c index a44e8995f11..135fbdf2868 100644 --- a/rpc/rpc-transport/rdma/src/rdma.c +++ b/rpc/rpc-transport/rdma/src/rdma.c @@ -8,7 +8,6 @@ cases as published by the Free Software Foundation. */ - #ifndef _CONFIG_H #define _CONFIG_H #include "config.h" @@ -35,99 +34,26 @@ gf_rdma_post_ref (gf_rdma_post_t *post); int gf_rdma_post_unref (gf_rdma_post_t *post); -int32_t -gf_resolve_ip6 (const char *hostname, - uint16_t port, - int family, - void **dnscache, - struct addrinfo **addr_info); - -static uint16_t -gf_rdma_get_local_lid (struct ibv_context *context, - int32_t port) -{ - struct ibv_port_attr attr; - - if (ibv_query_port (context, port, &attr)) - return 0; - - return attr.lid; -} +static void * +gf_rdma_send_completion_proc (void *data); -static const char * -get_port_state_str(enum ibv_port_state pstate) -{ - switch (pstate) { - case IBV_PORT_DOWN: return "PORT_DOWN"; - case IBV_PORT_INIT: return "PORT_INIT"; - case IBV_PORT_ARMED: return "PORT_ARMED"; - case IBV_PORT_ACTIVE: return "PORT_ACTIVE"; - case IBV_PORT_ACTIVE_DEFER: return "PORT_ACTIVE_DEFER"; - default: return "invalid state"; - } -} +static void * +gf_rdma_recv_completion_proc (void *data); static int32_t -ib_check_active_port (struct ibv_context *ctx, uint8_t port) -{ - struct ibv_port_attr port_attr = {0, }; - int32_t ret = 0; - const char *state_str = NULL; - - if (!ctx) { - gf_log_callingfn (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "Error in supplied context"); - return -1; - } - - ret = ibv_query_port (ctx, port, &port_attr); - - if (ret) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "Failed to query port %u properties", port); - return -1; - } - - state_str = get_port_state_str (port_attr.state); - gf_log (GF_RDMA_LOG_NAME, GF_LOG_TRACE, - "Infiniband PORT: (%u) STATE: (%s)", - port, state_str); - - if (port_attr.state == IBV_PORT_ACTIVE) - return 0; - - return -1; -} +gf_rdma_create_qp (rpc_transport_t *this); static int32_t -ib_get_active_port (struct ibv_context *ib_ctx) -{ - struct ibv_device_attr ib_device_attr = {{0, }, }; - int32_t ret = -1; - uint8_t ib_port = 0; +__gf_rdma_teardown (rpc_transport_t *this); - if (!ib_ctx) { - gf_log_callingfn (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "Error in supplied context"); - return -1; - } - if (ibv_query_device (ib_ctx, &ib_device_attr)) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "Failed to query device properties"); - return -1; - } +static int32_t +gf_rdma_teardown (rpc_transport_t *this); - for (ib_port = 1; ib_port <= ib_device_attr.phys_port_cnt; ++ib_port) { - ret = ib_check_active_port (ib_ctx, ib_port); - if (ret == 0) - return ib_port; +static int32_t +gf_rdma_disconnect (rpc_transport_t *this); - gf_log (GF_RDMA_LOG_NAME, GF_LOG_TRACE, - "Port:(%u) not active", ib_port); - continue; - } - return ret; -} +static void +gf_rdma_cm_handle_disconnect (rpc_transport_t *this); static void @@ -157,7 +83,7 @@ gf_rdma_put_post (gf_rdma_queue_t *queue, gf_rdma_post_t *post) static gf_rdma_post_t * -gf_rdma_new_post (gf_rdma_device_t *device, int32_t len, +gf_rdma_new_post (rpc_transport_t *this, gf_rdma_device_t *device, int32_t len, gf_rdma_post_type_t type) { gf_rdma_post_t *post = NULL; @@ -184,7 +110,7 @@ gf_rdma_new_post (gf_rdma_device_t *device, int32_t len, post->buf_size, IBV_ACCESS_LOCAL_WRITE); if (!post->mr) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_WARNING, + gf_log (this->name, GF_LOG_WARNING, "memory registration failed (%s)", strerror (errno)); goto out; @@ -259,22 +185,6 @@ __gf_rdma_quota_get (gf_rdma_peer_t *peer) return ret; } -/* - static int32_t - gf_rdma_quota_get (gf_rdma_peer_t *peer) - { - int32_t ret = -1; - gf_rdma_private_t *priv = peer->trans->private; - - pthread_mutex_lock (&priv->write_mutex); - { - ret = __gf_rdma_quota_get (peer); - } - pthread_mutex_unlock (&priv->write_mutex); - - return ret; - } -*/ static void __gf_rdma_ioq_entry_free (gf_rdma_ioq_t *entry) @@ -290,6 +200,7 @@ __gf_rdma_ioq_entry_free (gf_rdma_ioq_t *entry) iobref_unref (entry->msg.request.rsp_iobref); entry->msg.request.rsp_iobref = NULL; } + mem_put (entry); } @@ -309,26 +220,890 @@ static int32_t __gf_rdma_disconnect (rpc_transport_t *this) { gf_rdma_private_t *priv = NULL; - int32_t ret = 0; priv = this->private; - if (priv->connected || priv->tcp_connected) { - fcntl (priv->sock, F_SETFL, O_NONBLOCK); - if (shutdown (priv->sock, SHUT_RDWR) != 0) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_DEBUG, - "shutdown () - error: %s", - strerror (errno)); - ret = -errno; - priv->tcp_connected = 0; + if (priv->connected) { + rdma_disconnect (priv->peer.cm_id); + } + + return 0; +} + + +static void +gf_rdma_queue_init (gf_rdma_queue_t *queue) +{ + pthread_mutex_init (&queue->lock, NULL); + + queue->active_posts.next = &queue->active_posts; + queue->active_posts.prev = &queue->active_posts; + queue->passive_posts.next = &queue->passive_posts; + queue->passive_posts.prev = &queue->passive_posts; +} + + +static void +__gf_rdma_destroy_queue (gf_rdma_post_t *post) +{ + gf_rdma_post_t *tmp = NULL; + + while (post->next != post) { + tmp = post->next; + + post->next = post->next->next; + post->next->prev = post; + + gf_rdma_destroy_post (tmp); + } +} + + +static void +gf_rdma_destroy_queue (gf_rdma_queue_t *queue) +{ + if (queue == NULL) { + goto out; + } + + pthread_mutex_lock (&queue->lock); + { + if (queue->passive_count > 0) { + __gf_rdma_destroy_queue (&queue->passive_posts); + queue->passive_count = 0; + } + + if (queue->active_count > 0) { + __gf_rdma_destroy_queue (&queue->active_posts); + queue->active_count = 0; + } + } + pthread_mutex_unlock (&queue->lock); + +out: + return; +} + + +static void +gf_rdma_destroy_posts (rpc_transport_t *this) +{ + gf_rdma_device_t *device = NULL; + gf_rdma_private_t *priv = NULL; + + if (this == NULL) { + goto out; + } + + priv = this->private; + device = priv->device; + + gf_rdma_destroy_queue (&device->sendq); + gf_rdma_destroy_queue (&device->recvq); + +out: + return; +} + + +static int32_t +__gf_rdma_create_posts (rpc_transport_t *this, int32_t count, int32_t size, + gf_rdma_queue_t *q, gf_rdma_post_type_t type) +{ + int32_t i = 0; + int32_t ret = 0; + gf_rdma_private_t *priv = NULL; + gf_rdma_device_t *device = NULL; + + priv = this->private; + device = priv->device; + + for (i=0 ; i<count ; i++) { + gf_rdma_post_t *post = NULL; + + post = gf_rdma_new_post (this, device, size + 2048, type); + if (!post) { + gf_log (this->name, GF_LOG_ERROR, + "post creation failed"); + ret = -1; + break; + } + + gf_rdma_put_post (q, post); + } + return ret; +} + + +static int32_t +gf_rdma_post_recv (struct ibv_srq *srq, + gf_rdma_post_t *post) +{ + struct ibv_sge list = { + .addr = (unsigned long) post->buf, + .length = post->buf_size, + .lkey = post->mr->lkey + }; + + struct ibv_recv_wr wr = { + .wr_id = (unsigned long) post, + .sg_list = &list, + .num_sge = 1, + }, *bad_wr; + + gf_rdma_post_ref (post); + + return ibv_post_srq_recv (srq, &wr, &bad_wr); +} + + +static int32_t +gf_rdma_create_posts (rpc_transport_t *this) +{ + int32_t i = 0, ret = 0; + gf_rdma_post_t *post = NULL; + gf_rdma_private_t *priv = NULL; + gf_rdma_options_t *options = NULL; + gf_rdma_device_t *device = NULL; + + priv = this->private; + options = &priv->options; + device = priv->device; + + ret = __gf_rdma_create_posts (this, options->send_count, + options->send_size, + &device->sendq, GF_RDMA_SEND_POST); + if (!ret) + ret = __gf_rdma_create_posts (this, options->recv_count, + options->recv_size, + &device->recvq, + GF_RDMA_RECV_POST); + + if (!ret) { + for (i=0 ; i<options->recv_count ; i++) { + post = gf_rdma_get_post (&device->recvq); + if (gf_rdma_post_recv (device->srq, post) != 0) { + ret = -1; + break; + } + } + } + + if (ret) + gf_rdma_destroy_posts (this); + + return ret; +} + + +static void +gf_rdma_destroy_cq (rpc_transport_t *this) +{ + gf_rdma_private_t *priv = NULL; + gf_rdma_device_t *device = NULL; + + priv = this->private; + device = priv->device; + + if (device->recv_cq) + ibv_destroy_cq (device->recv_cq); + device->recv_cq = NULL; + + if (device->send_cq) + ibv_destroy_cq (device->send_cq); + device->send_cq = NULL; + + return; +} + + +static int32_t +gf_rdma_create_cq (rpc_transport_t *this) +{ + gf_rdma_private_t *priv = NULL; + gf_rdma_options_t *options = NULL; + gf_rdma_device_t *device = NULL; + uint64_t send_cqe = 0; + int32_t ret = 0; + struct ibv_device_attr device_attr = {{0}, }; + + priv = this->private; + options = &priv->options; + device = priv->device; + + device->recv_cq = ibv_create_cq (priv->device->context, + options->recv_count * 2, + device, + device->recv_chan, + 0); + if (!device->recv_cq) { + gf_log (this->name, GF_LOG_ERROR, + "creation of CQ for device %s failed", + device->device_name); + ret = -1; + goto out; + } else if (ibv_req_notify_cq (device->recv_cq, 0)) { + gf_log (this->name, GF_LOG_ERROR, + "ibv_req_notify_cq on recv CQ of device %s failed", + device->device_name); + ret = -1; + goto out; + } + + do { + ret = ibv_query_device (priv->device->context, &device_attr); + if (ret != 0) { + gf_log (this->name, GF_LOG_ERROR, + "ibv_query_device on %s returned %d (%s)", + priv->device->device_name, ret, + (ret > 0) ? strerror (ret) : ""); + ret = -1; + goto out; + } + + send_cqe = options->send_count * 128; + send_cqe = (send_cqe > device_attr.max_cqe) + ? device_attr.max_cqe : send_cqe; + + /* TODO: make send_cq size dynamically adaptive */ + device->send_cq = ibv_create_cq (priv->device->context, + send_cqe, device, + device->send_chan, 0); + if (!device->send_cq) { + gf_log (this->name, GF_LOG_ERROR, + "creation of send_cq for device %s failed", + device->device_name); + ret = -1; + goto out; + } + + if (ibv_req_notify_cq (device->send_cq, 0)) { + gf_log (this->name, GF_LOG_ERROR, + "ibv_req_notify_cq on send_cq for device %s" + " failed", device->device_name); + ret = -1; + goto out; + } + } while (0); + +out: + if (ret != 0) + gf_rdma_destroy_cq (this); + + return ret; +} + + +static gf_rdma_device_t * +gf_rdma_get_device (rpc_transport_t *this, struct ibv_context *ibctx, + char *device_name) +{ + glusterfs_ctx_t *ctx = NULL; + gf_rdma_private_t *priv = NULL; + gf_rdma_options_t *options = NULL; + int32_t ret = 0; + int32_t i = 0; + gf_rdma_device_t *trav = NULL, *device = NULL; + gf_rdma_ctx_t *rdma_ctx = NULL; + + priv = this->private; + options = &priv->options; + ctx = this->ctx; + rdma_ctx = ctx->ib; + + trav = rdma_ctx->device; + + while (trav) { + if (!strcmp (trav->device_name, device_name)) + break; + trav = trav->next; + } + + if (!trav) { + trav = GF_CALLOC (1, sizeof (*trav), + gf_common_mt_rdma_device_t); + if (trav == NULL) { + goto out; + } + + priv->device = trav; + trav->context = ibctx; + + trav->request_ctx_pool + = mem_pool_new (gf_rdma_request_context_t, + GF_RDMA_POOL_SIZE); + if (trav->request_ctx_pool == NULL) { + goto out; + } + + trav->ioq_pool + = mem_pool_new (gf_rdma_ioq_t, GF_RDMA_POOL_SIZE); + if (trav->ioq_pool == NULL) { + goto out; + } + + trav->reply_info_pool = mem_pool_new (gf_rdma_reply_info_t, + GF_RDMA_POOL_SIZE); + if (trav->reply_info_pool == NULL) { + goto out; + } + + trav->device_name = gf_strdup (device_name); + + trav->next = rdma_ctx->device; + rdma_ctx->device = trav; + + trav->send_chan = ibv_create_comp_channel (trav->context); + if (!trav->send_chan) { + gf_log (this->name, GF_LOG_ERROR, + "could not create send completion channel for " + "device (%s)", device_name); + goto out; + } + + trav->recv_chan = ibv_create_comp_channel (trav->context); + if (!trav->recv_chan) { + gf_log (this->name, GF_LOG_ERROR, + "could not create recv completion channel for " + "device (%s)", device_name); + + /* TODO: cleanup current mess */ + goto out; + } + + if (gf_rdma_create_cq (this) < 0) { + gf_log (this->name, GF_LOG_ERROR, + "could not create CQ for device (%s)", + device_name); + goto out; + } + + /* protection domain */ + trav->pd = ibv_alloc_pd (trav->context); + + if (!trav->pd) { + gf_log (this->name, GF_LOG_ERROR, + "could not allocate protection domain for " + "device (%s)", device_name); + goto out; + } + + struct ibv_srq_init_attr attr = { + .attr = { + .max_wr = options->recv_count, + .max_sge = 1 + } + }; + trav->srq = ibv_create_srq (trav->pd, &attr); + + if (!trav->srq) { + gf_log (this->name, GF_LOG_ERROR, + "could not create SRQ for device (%s)", + device_name); + goto out; + } + + /* queue init */ + gf_rdma_queue_init (&trav->sendq); + gf_rdma_queue_init (&trav->recvq); + + if (gf_rdma_create_posts (this) < 0) { + gf_log (this->name, GF_LOG_ERROR, + "could not allocate posts for device (%s)", + device_name); + goto out; + } + + /* completion threads */ + ret = pthread_create (&trav->send_thread, + NULL, + gf_rdma_send_completion_proc, + trav->send_chan); + if (ret) { + gf_log (this->name, GF_LOG_ERROR, + "could not create send completion thread for " + "device (%s)", device_name); + goto out; + } + + ret = pthread_create (&trav->recv_thread, + NULL, + gf_rdma_recv_completion_proc, + trav->recv_chan); + if (ret) { + gf_log (this->name, GF_LOG_ERROR, + "could not create recv completion thread " + "for device (%s)", device_name); + return NULL; + } + + /* qpreg */ + pthread_mutex_init (&trav->qpreg.lock, NULL); + for (i=0; i<42; i++) { + trav->qpreg.ents[i].next = &trav->qpreg.ents[i]; + trav->qpreg.ents[i].prev = &trav->qpreg.ents[i]; + } + } + + device = trav; + trav = NULL; +out: + + if (trav != NULL) { + gf_rdma_destroy_posts (this); + mem_pool_destroy (trav->ioq_pool); + mem_pool_destroy (trav->request_ctx_pool); + mem_pool_destroy (trav->reply_info_pool); + ibv_dealloc_pd (trav->pd); + gf_rdma_destroy_cq (this); + ibv_destroy_comp_channel (trav->recv_chan); + ibv_destroy_comp_channel (trav->send_chan); + GF_FREE ((char *)trav->device_name); + GF_FREE (trav); + } + + return device; +} + + +static rpc_transport_t * +gf_rdma_transport_new (rpc_transport_t *listener, struct rdma_cm_id *cm_id) +{ + gf_rdma_private_t *listener_priv = NULL, *priv = NULL; + rpc_transport_t *this = NULL, *new = NULL; + gf_rdma_options_t *options = NULL; + char *device_name = NULL; + + listener_priv = listener->private; + + this = GF_CALLOC (1, sizeof (rpc_transport_t), + gf_common_mt_rpc_transport_t); + if (this == NULL) { + goto out; + } + + this->listener = listener; + + priv = GF_CALLOC (1, sizeof (gf_rdma_private_t), + gf_common_mt_rdma_private_t); + if (priv == NULL) { + goto out; + } + + this->private = priv; + priv->options = listener_priv->options; + + priv->listener = listener; + priv->entity = GF_RDMA_SERVER; + + options = &priv->options; + + this->ops = listener->ops; + this->init = listener->init; + this->fini = listener->fini; + this->ctx = listener->ctx; + this->name = gf_strdup (listener->name); + this->notify = listener->notify; + this->mydata = listener->mydata; + + this->myinfo.sockaddr_len = sizeof (cm_id->route.addr.src_addr); + memcpy (&this->myinfo.sockaddr, &cm_id->route.addr.src_addr, + this->myinfo.sockaddr_len); + + this->peerinfo.sockaddr_len = sizeof (cm_id->route.addr.dst_addr); + memcpy (&this->peerinfo.sockaddr, &cm_id->route.addr.dst_addr, + this->peerinfo.sockaddr_len); + + priv->peer.trans = this; + gf_rdma_get_transport_identifiers (this); + + device_name = (char *)ibv_get_device_name (cm_id->verbs->device); + if (device_name == NULL) { + gf_log (listener->name, GF_LOG_WARNING, + "cannot get device name (peer:%s me:%s)", + this->peerinfo.identifier, this->myinfo.identifier); + goto out; + } + + priv->device = gf_rdma_get_device (this, cm_id->verbs, + device_name); + if (priv->device == NULL) { + gf_log (listener->name, GF_LOG_WARNING, + "cannot get infiniband device %s (peer:%s me:%s)", + device_name, this->peerinfo.identifier, + this->myinfo.identifier); + goto out; + } + + priv->peer.send_count = options->send_count; + priv->peer.recv_count = options->recv_count; + priv->peer.send_size = options->send_size; + priv->peer.recv_size = options->recv_size; + priv->peer.cm_id = cm_id; + INIT_LIST_HEAD (&priv->peer.ioq); + + pthread_mutex_init (&priv->write_mutex, NULL); + pthread_mutex_init (&priv->recv_mutex, NULL); + + cm_id->context = this; + + new = rpc_transport_ref (this); + this = NULL; +out: + if (this != NULL) { + if (this->private != NULL) { + GF_FREE (this->private); + } + + if (this->name != NULL) { + GF_FREE (this->name); + } + + GF_FREE (this); + } + + return new; +} + + +static int +gf_rdma_cm_handle_connect_request (struct rdma_cm_event *event) +{ + int ret = -1; + rpc_transport_t *this = NULL, *listener = NULL; + struct rdma_cm_id *child_cm_id = NULL, *listener_cm_id = NULL; + struct rdma_conn_param conn_param = {0, }; + gf_rdma_private_t *priv = NULL; + gf_rdma_options_t *options = NULL; + + child_cm_id = event->id; + listener_cm_id = event->listen_id; + + listener = listener_cm_id->context; + priv = listener->private; + options = &priv->options; + + this = gf_rdma_transport_new (listener, child_cm_id); + if (this == NULL) { + gf_log (listener->name, GF_LOG_WARNING, + "could not create a transport for incoming connection" + " (me.name:%s me.identifier:%s)", listener->name, + listener->myinfo.identifier); + rdma_destroy_id (child_cm_id); + goto out; + } + + gf_log (listener->name, GF_LOG_TRACE, + "got a connect request (me:%s peer:%s)", + listener->myinfo.identifier, this->peerinfo.identifier); + + ret = gf_rdma_create_qp (this); + if (ret < 0) { + gf_log (listener->name, GF_LOG_WARNING, + "could not create QP (peer:%s me:%s)", + this->peerinfo.identifier, this->myinfo.identifier); + gf_rdma_cm_handle_disconnect (this); + goto out; + } + + conn_param.responder_resources = 1; + conn_param.initiator_depth = 1; + conn_param.retry_count = options->attr_retry_cnt; + conn_param.rnr_retry_count = options->attr_rnr_retry; + + ret = rdma_accept(child_cm_id, &conn_param); + if (ret < 0) { + gf_log (listener->name, GF_LOG_WARNING, "rdma_accept failed " + "peer:%s me:%s (%s)", this->peerinfo.identifier, + this->myinfo.identifier, strerror (errno)); + gf_rdma_cm_handle_disconnect (this); + goto out; + } + + ret = 0; + +out: + return ret; +} + + +static int +gf_rdma_cm_handle_route_resolved (struct rdma_cm_event *event) +{ + struct rdma_conn_param conn_param = {0, }; + int ret = 0; + rpc_transport_t *this = NULL; + gf_rdma_private_t *priv = NULL; + gf_rdma_peer_t *peer = NULL; + gf_rdma_options_t *options = NULL; + + if (event == NULL) { + goto out; + } + + this = event->id->context; + + priv = this->private; + peer = &priv->peer; + options = &priv->options; + + ret = gf_rdma_create_qp (this); + if (ret != 0) { + gf_log (this->name, GF_LOG_WARNING, + "could not create QP (peer:%s me:%s)", + this->peerinfo.identifier, this->myinfo.identifier); + gf_rdma_cm_handle_disconnect (this); + goto out; + } + + memset(&conn_param, 0, sizeof conn_param); + conn_param.responder_resources = 1; + conn_param.initiator_depth = 1; + conn_param.retry_count = options->attr_retry_cnt; + conn_param.rnr_retry_count = options->attr_rnr_retry; + + ret = rdma_connect(peer->cm_id, &conn_param); + if (ret != 0) { + gf_log (this->name, GF_LOG_WARNING, + "rdma_connect failed (%s)", strerror (errno)); + gf_rdma_cm_handle_disconnect (this); + goto out; + } + + gf_log (this->name, GF_LOG_TRACE, "route resolved (me:%s peer:%s)", + this->myinfo.identifier, this->peerinfo.identifier); + + ret = 0; +out: + return ret; +} + + +static int +gf_rdma_cm_handle_addr_resolved (struct rdma_cm_event *event) +{ + rpc_transport_t *this = NULL; + gf_rdma_peer_t *peer = NULL; + gf_rdma_private_t *priv = NULL; + int ret = 0; + + this = event->id->context; + + priv = this->private; + peer = &priv->peer; + + GF_ASSERT (peer->cm_id == event->id); + + this->myinfo.sockaddr_len = sizeof (peer->cm_id->route.addr.src_addr); + memcpy (&this->myinfo.sockaddr, &peer->cm_id->route.addr.src_addr, + this->myinfo.sockaddr_len); + + this->peerinfo.sockaddr_len = sizeof (peer->cm_id->route.addr.dst_addr); + memcpy (&this->peerinfo.sockaddr, &peer->cm_id->route.addr.dst_addr, + this->peerinfo.sockaddr_len); + + gf_rdma_get_transport_identifiers (this); + + ret = rdma_resolve_route(peer->cm_id, 2000); + if (ret != 0) { + gf_log (this->name, GF_LOG_WARNING, + "rdma_resolve_route failed (me:%s peer:%s) (%s)", + this->myinfo.identifier, this->peerinfo.identifier, + strerror (errno)); + gf_rdma_cm_handle_disconnect (this); + } + + gf_log (this->name, GF_LOG_TRACE, "Address resolved (me:%s peer:%s)", + this->myinfo.identifier, this->peerinfo.identifier); + + return ret; +} + + +static void +gf_rdma_cm_handle_disconnect (rpc_transport_t *this) +{ + gf_rdma_private_t *priv = NULL; + char need_unref = 0, connected = 0; + + priv = this->private; + gf_log (this->name, GF_LOG_DEBUG, + "peer disconnected, cleaning up"); + + pthread_mutex_lock (&priv->write_mutex); + { + if (priv->peer.cm_id != NULL) { + need_unref = 1; + connected = priv->connected; priv->connected = 0; } + + __gf_rdma_teardown (this); + } + pthread_mutex_unlock (&priv->write_mutex); + + if (connected) { + rpc_transport_notify (this, RPC_TRANSPORT_DISCONNECT, this); + } + + if (need_unref) + rpc_transport_unref (this); + +} + + +static int +gf_rdma_cm_handle_event_established (struct rdma_cm_event *event) +{ + rpc_transport_t *this = NULL; + gf_rdma_private_t *priv = NULL; + struct rdma_cm_id *cm_id = NULL; + int ret = 0; + + cm_id = event->id; + this = cm_id->context; + priv = this->private; + + priv->connected = 1; + + pthread_mutex_lock (&priv->write_mutex); + { + priv->peer.quota = 1; + priv->peer.quota_set = 0; + } + pthread_mutex_unlock (&priv->write_mutex); + + if (priv->entity == GF_RDMA_CLIENT) { + ret = rpc_transport_notify (this, RPC_TRANSPORT_CONNECT, this); + + } else if (priv->entity == GF_RDMA_SERVER) { + ret = rpc_transport_notify (priv->listener, + RPC_TRANSPORT_ACCEPT, this); + } + + if (ret < 0) { + gf_rdma_disconnect (this); } + gf_log (this->name, GF_LOG_TRACE, + "recieved event RDMA_CM_EVENT_ESTABLISHED (me:%s peer:%s)", + this->myinfo.identifier, this->peerinfo.identifier); + return ret; } +static int +gf_rdma_cm_handle_event_error (rpc_transport_t *this) +{ + gf_rdma_private_t *priv = NULL; + + priv = this->private; + + if (priv->entity != GF_RDMA_SERVER_LISTENER) { + gf_rdma_cm_handle_disconnect (this); + } + + return 0; +} + + +static int +gf_rdma_cm_handle_device_removal (struct rdma_cm_event *event) +{ + return 0; +} + + +static void * +gf_rdma_cm_event_handler (void *data) +{ + struct rdma_cm_event *event = NULL; + int ret = 0; + rpc_transport_t *this = NULL; + struct rdma_event_channel *event_channel = NULL; + + event_channel = data; + + while (1) { + ret = rdma_get_cm_event (event_channel, &event); + if (ret != 0) { + gf_log (GF_RDMA_LOG_NAME, GF_LOG_WARNING, + "rdma_cm_get_event failed (%s)", + strerror (errno)); + break; + } + + switch (event->event) { + case RDMA_CM_EVENT_ADDR_RESOLVED: + gf_rdma_cm_handle_addr_resolved (event); + break; + + case RDMA_CM_EVENT_ROUTE_RESOLVED: + gf_rdma_cm_handle_route_resolved (event); + break; + + case RDMA_CM_EVENT_CONNECT_REQUEST: + gf_rdma_cm_handle_connect_request (event); + break; + + case RDMA_CM_EVENT_ESTABLISHED: + gf_rdma_cm_handle_event_established (event); + break; + + case RDMA_CM_EVENT_ADDR_ERROR: + case RDMA_CM_EVENT_ROUTE_ERROR: + case RDMA_CM_EVENT_CONNECT_ERROR: + case RDMA_CM_EVENT_UNREACHABLE: + case RDMA_CM_EVENT_REJECTED: + this = event->id->context; + + gf_log (this->name, GF_LOG_WARNING, + "cma event %s, error %d (me:%s peer:%s)\n", + rdma_event_str(event->event), event->status, + this->myinfo.identifier, + this->peerinfo.identifier); + + rdma_ack_cm_event (event); + event = NULL; + + gf_rdma_cm_handle_event_error (this); + continue; + + case RDMA_CM_EVENT_DISCONNECTED: + this = event->id->context; + + gf_log (this->name, GF_LOG_DEBUG, + "recieved disconnect (me:%s peer:%s)\n", + this->myinfo.identifier, + this->peerinfo.identifier); + + rdma_ack_cm_event (event); + event = NULL; + + gf_rdma_cm_handle_disconnect (this); + continue; + + case RDMA_CM_EVENT_DEVICE_REMOVAL: + gf_log (GF_RDMA_LOG_NAME, GF_LOG_WARNING, + "device removed"); + gf_rdma_cm_handle_device_removal (event); + break; + + default: + gf_log (GF_RDMA_LOG_NAME, GF_LOG_WARNING, + "unhandled event: %s, ignoring", + rdma_event_str(event->event)); + break; + } + + rdma_ack_cm_event (event); + } + + return NULL; +} + + static int32_t gf_rdma_post_send (struct ibv_qp *qp, gf_rdma_post_t *post, int32_t len) { @@ -832,28 +1607,6 @@ out: } -static int32_t -gf_rdma_post_recv (struct ibv_srq *srq, - gf_rdma_post_t *post) -{ - struct ibv_sge list = { - .addr = (unsigned long) post->buf, - .length = post->buf_size, - .lkey = post->mr->lkey - }; - - struct ibv_recv_wr wr = { - .wr_id = (unsigned long) post, - .sg_list = &list, - .num_sge = 1, - }, *bad_wr; - - gf_rdma_post_ref (post); - - return ibv_post_srq_recv (srq, &wr, &bad_wr); -} - - int gf_rdma_post_unref (gf_rdma_post_t *post) { @@ -1263,7 +2016,7 @@ out: } -static inline int32_t +inline int32_t __gf_rdma_register_local_mr_for_rdma (gf_rdma_peer_t *peer, struct iovec *vector, int count, gf_rdma_post_context_t *ctx) @@ -1715,7 +2468,7 @@ __gf_rdma_ioq_churn_entry (gf_rdma_peer_t *peer, gf_rdma_ioq_t *entry) if (quota > 0) { post = gf_rdma_get_post (&device->sendq); if (post == NULL) { - post = gf_rdma_new_post (device, + post = gf_rdma_new_post (peer->trans, device, (options->send_size + 2048), GF_RDMA_SEND_POST); } @@ -1992,189 +2745,6 @@ out: return ret; } -#if 0 -static int -gf_rdma_receive (rpc_transport_t *this, char **hdr_p, size_t *hdrlen_p, - struct iobuf **iobuf_p) -{ - gf_rdma_private_t *priv = this->private; - /* TODO: return error if !priv->connected, check with locks */ - /* TODO: boundry checks for data_ptr/offset */ - char *copy_from = NULL; - gf_rdma_header_t *header = NULL; - uint32_t size1, size2, data_len = 0; - char *hdr = NULL; - struct iobuf *iobuf = NULL; - int32_t ret = 0; - - pthread_mutex_lock (&priv->recv_mutex); - { -/* - while (!priv->data_ptr) - pthread_cond_wait (&priv->recv_cond, &priv->recv_mutex); -*/ - - copy_from = priv->data_ptr + priv->data_offset; - - priv->data_ptr = NULL; - data_len = priv->data_len; - pthread_cond_broadcast (&priv->recv_cond); - } - pthread_mutex_unlock (&priv->recv_mutex); - - header = (gf_rdma_header_t *)copy_from; - if (strcmp (header->colonO, ":O")) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_DEBUG, - "%s: corrupt header received", this->name); - ret = -1; - goto err; - } - - size1 = ntoh32 (header->size1); - size2 = ntoh32 (header->size2); - - if (data_len != (size1 + size2 + sizeof (*header))) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_DEBUG, - "%s: sizeof data read from transport is not equal " - "to the size specified in the header", - this->name); - ret = -1; - goto err; - } - - copy_from += sizeof (*header); - - if (size1) { - hdr = GF_CALLOC (1, size1, gf_common_mt_char); - if (!hdr) { - gf_log (this->name, GF_LOG_ERROR, - "unable to allocate header for peer %s", - this->peerinfo.identifier); - ret = -ENOMEM; - goto err; - } - memcpy (hdr, copy_from, size1); - copy_from += size1; - *hdr_p = hdr; - } - *hdrlen_p = size1; - - if (size2) { - iobuf = iobuf_get2 (this->ctx->iobuf_pool, size2); - if (!iobuf) { - gf_log (this->name, GF_LOG_ERROR, - "unable to allocate IO buffer for peer %s", - this->peerinfo.identifier); - ret = -ENOMEM; - goto err; - } - memcpy (iobuf->ptr, copy_from, size2); - *iobuf_p = iobuf; - } - -err: - return ret; -} -#endif - - -static void -gf_rdma_destroy_cq (rpc_transport_t *this) -{ - gf_rdma_private_t *priv = NULL; - gf_rdma_device_t *device = NULL; - - priv = this->private; - device = priv->device; - - if (device->recv_cq) - ibv_destroy_cq (device->recv_cq); - device->recv_cq = NULL; - - if (device->send_cq) - ibv_destroy_cq (device->send_cq); - device->send_cq = NULL; - - return; -} - - -static int32_t -gf_rdma_create_cq (rpc_transport_t *this) -{ - gf_rdma_private_t *priv = NULL; - gf_rdma_options_t *options = NULL; - gf_rdma_device_t *device = NULL; - uint64_t send_cqe = 0; - int32_t ret = 0; - struct ibv_device_attr device_attr = {{0}, }; - - priv = this->private; - options = &priv->options; - device = priv->device; - - device->recv_cq = ibv_create_cq (priv->device->context, - options->recv_count * 2, - device, - device->recv_chan, - 0); - if (!device->recv_cq) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: creation of CQ for device %s failed", - this->name, device->device_name); - ret = -1; - goto out; - } else if (ibv_req_notify_cq (device->recv_cq, 0)) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: ibv_req_notify_cq on recv CQ of device %s failed", - this->name, device->device_name); - ret = -1; - goto out; - } - - do { - ret = ibv_query_device (priv->device->context, &device_attr); - if (ret != 0) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: ibv_query_device on %s returned %d (%s)", - this->name, priv->device->device_name, ret, - (ret > 0) ? strerror (ret) : ""); - ret = -1; - goto out; - } - - send_cqe = options->send_count * 128; - send_cqe = (send_cqe > device_attr.max_cqe) - ? device_attr.max_cqe : send_cqe; - - /* TODO: make send_cq size dynamically adaptive */ - device->send_cq = ibv_create_cq (priv->device->context, - send_cqe, device, - device->send_chan, 0); - if (!device->send_cq) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: creation of send_cq for device %s failed", - this->name, device->device_name); - ret = -1; - goto out; - } - - if (ibv_req_notify_cq (device->send_cq, 0)) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: ibv_req_notify_cq on send_cq for device %s" - " failed", this->name, device->device_name); - ret = -1; - goto out; - } - } while (0); - -out: - if (ret != 0) - gf_rdma_destroy_cq (this); - - return ret; -} - static int gf_rdma_register_peer (gf_rdma_device_t *device, int32_t qp_num, @@ -2273,25 +2843,6 @@ __gf_rdma_lookup_peer (gf_rdma_device_t *device, int32_t qp_num) return peer; } -/* - static gf_rdma_peer_t * - gf_rdma_lookup_peer (gf_rdma_device_t *device, - int32_t qp_num) - { - gf_rdma_qpreg_t *qpreg = NULL; - gf_rdma_peer_t *peer = NULL; - - qpreg = &device->qpreg; - pthread_mutex_lock (&qpreg->lock); - { - peer = __gf_rdma_lookup_peer (device, qp_num); - } - pthread_mutex_unlock (&qpreg->lock); - - return peer; - } -*/ - static void __gf_rdma_destroy_qp (rpc_transport_t *this) @@ -2301,7 +2852,7 @@ __gf_rdma_destroy_qp (rpc_transport_t *this) priv = this->private; if (priv->peer.qp) { gf_rdma_unregister_peer (priv->device, priv->peer.qp->qp_num); - ibv_destroy_qp (priv->peer.qp); + rdma_destroy_qp (priv->peer.cm_id); } priv->peer.qp = NULL; @@ -2312,18 +2863,36 @@ __gf_rdma_destroy_qp (rpc_transport_t *this) static int32_t gf_rdma_create_qp (rpc_transport_t *this) { - gf_rdma_private_t *priv = NULL; - gf_rdma_options_t *options = NULL; - gf_rdma_device_t *device = NULL; - int32_t ret = 0; - gf_rdma_peer_t *peer = NULL; + gf_rdma_private_t *priv = NULL; + gf_rdma_device_t *device = NULL; + int32_t ret = 0; + gf_rdma_peer_t *peer = NULL; + char *device_name = NULL; priv = this->private; - options = &priv->options; - device = priv->device; peer = &priv->peer; + device_name = (char *)ibv_get_device_name (peer->cm_id->verbs->device); + if (device_name == NULL) { + ret = -1; + gf_log (this->name, GF_LOG_WARNING, "cannot get device_name"); + goto out; + } + + device = gf_rdma_get_device (this, peer->cm_id->verbs, + device_name); + if (device == NULL) { + ret = -1; + gf_log (this->name, GF_LOG_WARNING, "cannot get device for " + "device %s", device_name); + goto out; + } + + if (priv->device == NULL) { + priv->device = device; + } + struct ibv_qp_init_attr init_attr = { .send_cq = device->send_cq, .recv_cq = device->recv_cq, @@ -2337,39 +2906,16 @@ gf_rdma_create_qp (rpc_transport_t *this) .qp_type = IBV_QPT_RC }; - struct ibv_qp_attr attr = { - .qp_state = IBV_QPS_INIT, - .pkey_index = 0, - .port_num = options->port, - .qp_access_flags - = IBV_ACCESS_REMOTE_READ | IBV_ACCESS_REMOTE_WRITE - }; - - peer->qp = ibv_create_qp (device->pd, &init_attr); - if (!peer->qp) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_CRITICAL, - "%s: could not create QP", - this->name); - ret = -1; - goto out; - } else if (ibv_modify_qp (peer->qp, &attr, - IBV_QP_STATE | - IBV_QP_PKEY_INDEX | - IBV_QP_PORT | - IBV_QP_ACCESS_FLAGS)) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_ERROR, - "%s: failed to modify QP to INIT state", - this->name); + ret = rdma_create_qp(peer->cm_id, device->pd, &init_attr); + if (ret != 0) { + gf_log (peer->trans->name, GF_LOG_CRITICAL, + "%s: could not create QP (%s)", this->name, + strerror (errno)); ret = -1; goto out; } - peer->local_lid = gf_rdma_get_local_lid (device->context, - options->port); - peer->local_qpn = peer->qp->qp_num; - peer->local_psn = lrand48 () & 0xffffff; + peer->qp = peer->cm_id->qp; ret = gf_rdma_register_peer (device, peer->qp->qp_num, peer); @@ -2381,300 +2927,52 @@ out: } -static void -gf_rdma_destroy_posts (rpc_transport_t *this) -{ - -} - - static int32_t -__gf_rdma_create_posts (rpc_transport_t *this, int32_t count, int32_t size, - gf_rdma_queue_t *q, gf_rdma_post_type_t type) -{ - int32_t i = 0; - int32_t ret = 0; - gf_rdma_private_t *priv = NULL; - gf_rdma_device_t *device = NULL; - - priv = this->private; - device = priv->device; - - for (i=0 ; i<count ; i++) { - gf_rdma_post_t *post = NULL; - - post = gf_rdma_new_post (device, size + 2048, type); - if (!post) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: post creation failed", - this->name); - ret = -1; - break; - } - - gf_rdma_put_post (q, post); - } - return ret; -} - - -static int32_t -gf_rdma_create_posts (rpc_transport_t *this) +__gf_rdma_teardown (rpc_transport_t *this) { - int32_t i = 0, ret = 0; - gf_rdma_post_t *post = NULL; - gf_rdma_private_t *priv = NULL; - gf_rdma_options_t *options = NULL; - gf_rdma_device_t *device = NULL; + gf_rdma_private_t *priv = NULL; + gf_rdma_peer_t *peer = NULL; priv = this->private; - options = &priv->options; - device = priv->device; - - ret = __gf_rdma_create_posts (this, options->send_count, - options->send_size, - &device->sendq, GF_RDMA_SEND_POST); - if (!ret) - ret = __gf_rdma_create_posts (this, options->recv_count, - options->recv_size, - &device->recvq, - GF_RDMA_RECV_POST); + peer = &priv->peer; - if (!ret) { - for (i=0 ; i<options->recv_count ; i++) { - post = gf_rdma_get_post (&device->recvq); - if (gf_rdma_post_recv (device->srq, post) != 0) { - ret = -1; - break; - } - } + if (peer->cm_id->qp != NULL) { + __gf_rdma_destroy_qp (this); } - if (ret) - gf_rdma_destroy_posts (this); - - return ret; -} - - -static int32_t -gf_rdma_connect_qp (rpc_transport_t *this) -{ - gf_rdma_private_t *priv = this->private; - gf_rdma_options_t *options = &priv->options; - struct ibv_qp_attr attr = { - .qp_state = IBV_QPS_RTR, - .path_mtu = options->mtu, - .dest_qp_num = priv->peer.remote_qpn, - .rq_psn = priv->peer.remote_psn, - .max_dest_rd_atomic = 1, - .min_rnr_timer = 12, - .qp_access_flags - = IBV_ACCESS_REMOTE_READ | IBV_ACCESS_REMOTE_WRITE, - .ah_attr = { - .is_global = 0, - .dlid = priv->peer.remote_lid, - .sl = 0, - .src_path_bits = 0, - .port_num = options->port - } - }; - if (ibv_modify_qp (priv->peer.qp, &attr, - IBV_QP_STATE | - IBV_QP_AV | - IBV_QP_PATH_MTU | - IBV_QP_DEST_QPN | - IBV_QP_RQ_PSN | - IBV_QP_MAX_DEST_RD_ATOMIC | - IBV_QP_MIN_RNR_TIMER)) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_CRITICAL, - "Failed to modify QP to RTR\n"); - return -1; + if (!list_empty (&priv->peer.ioq)) { + __gf_rdma_ioq_flush (peer); } - attr.qp_state = IBV_QPS_RTS; - attr.timeout = options->attr_timeout; - attr.retry_cnt = options->attr_retry_cnt; - attr.rnr_retry = options->attr_rnr_retry; - attr.sq_psn = priv->peer.local_psn; - attr.max_rd_atomic = 1; - if (ibv_modify_qp (priv->peer.qp, &attr, - IBV_QP_STATE | - IBV_QP_TIMEOUT | - IBV_QP_RETRY_CNT | - IBV_QP_RNR_RETRY | - IBV_QP_SQ_PSN | - IBV_QP_MAX_QP_RD_ATOMIC)) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_CRITICAL, - "Failed to modify QP to RTS\n"); - return -1; + if (peer->cm_id != NULL) { + rdma_destroy_id (peer->cm_id); + peer->cm_id = NULL; } + /* TODO: decrement cq size */ return 0; } + static int32_t -__gf_rdma_teardown (rpc_transport_t *this) +gf_rdma_teardown (rpc_transport_t *this) { + int32_t ret = 0; gf_rdma_private_t *priv = NULL; - priv = this->private; - __gf_rdma_destroy_qp (this); - - if (!list_empty (&priv->peer.ioq)) { - __gf_rdma_ioq_flush (&priv->peer); + if (this == NULL) { + goto out; } - /* TODO: decrement cq size */ - return 0; -} - -/* - * return value: - * 0 = success (completed) - * -1 = error - * > 0 = incomplete - */ - -static int -__tcp_rwv (rpc_transport_t *this, struct iovec *vector, int count, - struct iovec **pending_vector, int *pending_count, - int write) -{ - gf_rdma_private_t *priv = NULL; - int sock = -1; - int ret = -1; - struct iovec *opvector = NULL; - int opcount = 0; - int moved = 0; - priv = this->private; - sock = priv->sock; - opvector = vector; - opcount = count; - while (opcount) + pthread_mutex_lock (&priv->write_mutex); { - if (write) - { - ret = writev (sock, opvector, opcount); - - if (ret == 0 || (ret == -1 && errno == EAGAIN)) - { - /* done for now */ - break; - } - } - else - { - ret = readv (sock, opvector, opcount); - - if (ret == -1 && errno == EAGAIN) - { - /* done for now */ - break; - } - } - - if (ret == 0) - { - gf_log (this->name, GF_LOG_DEBUG, - "EOF from peer %s", this->peerinfo.identifier); - opcount = -1; - errno = ENOTCONN; - break; - } - - if (ret == -1) - { - if (errno == EINTR) - continue; - - gf_log (this->name, GF_LOG_DEBUG, - "%s failed (%s)", write ? "writev" : "readv", - strerror (errno)); - if (write && !priv->connected && - (errno == ECONNREFUSED)) - gf_log (this->name, GF_LOG_ERROR, - "possible mismatch of 'rpc-transport-type'" - " in protocol server and client. " - "check volume file"); - opcount = -1; - break; - } - - moved = 0; - - while (moved < ret) - { - if ((ret - moved) >= opvector[0].iov_len) - { - moved += opvector[0].iov_len; - opvector++; - opcount--; - } - else - { - opvector[0].iov_len -= (ret - moved); - opvector[0].iov_base += (ret - moved); - moved += (ret - moved); - } - while (opcount && !opvector[0].iov_len) - { - opvector++; - opcount--; - } - } - } - - if (pending_vector) - *pending_vector = opvector; - - if (pending_count) - *pending_count = opcount; - - return opcount; -} - - -static int -__tcp_readv (rpc_transport_t *this, struct iovec *vector, int count, - struct iovec **pending_vector, int *pending_count) -{ - int ret = -1; - - ret = __tcp_rwv (this, vector, count, - pending_vector, pending_count, 0); - - return ret; -} - - -static int -__tcp_writev (rpc_transport_t *this, struct iovec *vector, int count, - struct iovec **pending_vector, int *pending_count) -{ - int ret = -1; - gf_rdma_private_t *priv = NULL; - - priv = this->private; - - ret = __tcp_rwv (this, vector, count, pending_vector, - pending_count, 1); - - if (ret > 0) { - /* TODO: Avoid multiple calls when socket is already - registered for POLLOUT */ - priv->idx = event_select_on (this->ctx->event_pool, - priv->sock, priv->idx, -1, 1); - } else if (ret == 0) { - priv->idx = event_select_on (this->ctx->event_pool, - priv->sock, - priv->idx, -1, 0); + ret = __gf_rdma_teardown (this); } + pthread_mutex_unlock (&priv->write_mutex); +out: return ret; } @@ -2765,7 +3063,7 @@ out: } -static inline int32_t +inline int32_t gf_rdma_decode_error_msg (gf_rdma_peer_t *peer, gf_rdma_post_t *post, size_t bytes_in_post) { @@ -3307,7 +3605,7 @@ out: } -static inline int32_t +inline int32_t gf_rdma_recv_request (gf_rdma_peer_t *peer, gf_rdma_post_t *post, gf_rdma_read_chunk_t *readch) { @@ -3340,6 +3638,7 @@ gf_rdma_process_recv (gf_rdma_peer_t *peer, struct ibv_wc *wc) uint32_t *ptr = NULL; enum msg_type msg_type = 0; gf_rdma_header_t *header = NULL; + gf_rdma_private_t *priv = NULL; post = (gf_rdma_post_t *) (long) wc->wr_id; if (post == NULL) { @@ -3357,6 +3656,26 @@ gf_rdma_process_recv (gf_rdma_peer_t *peer, struct ibv_wc *wc) header = (gf_rdma_header_t *)post->buf; + priv = peer->trans->private; + + pthread_mutex_lock (&priv->write_mutex); + { + if (!priv->peer.quota_set) { + priv->peer.quota_set = 1; + + /* Initially peer.quota is set to 1 as per RFC 5666. We + * have to account for the quota used while sending + * first msg (which may or may not be returned to pool + * at this point) while deriving peer.quota from + * header->rm_credit. Hence the arithmatic below, + * instead of directly setting it to header->rm_credit. + */ + priv->peer.quota = header->rm_credit + - ( 1 - priv->peer.quota); + } + } + pthread_mutex_unlock (&priv->write_mutex); + switch (header->rm_type) { case GF_RDMA_MSG: ptr = (uint32_t *)post->ctx.vector[0].iov_base; @@ -3809,364 +4128,87 @@ gf_rdma_options_init (rpc_transport_t *this) return; } -static void -gf_rdma_queue_init (gf_rdma_queue_t *queue) -{ - pthread_mutex_init (&queue->lock, NULL); - - queue->active_posts.next = &queue->active_posts; - queue->active_posts.prev = &queue->active_posts; - queue->passive_posts.next = &queue->passive_posts; - queue->passive_posts.prev = &queue->passive_posts; -} - -static gf_rdma_device_t * -gf_rdma_get_device (rpc_transport_t *this, struct ibv_context *ibctx) +gf_rdma_ctx_t * +__gf_rdma_ctx_create (void) { - glusterfs_ctx_t *ctx = NULL; - gf_rdma_private_t *priv = NULL; - gf_rdma_options_t *options = NULL; - char *device_name = NULL; - uint32_t port = 0; - uint8_t active_port = 0; - int32_t ret = 0; - int32_t i = 0; - gf_rdma_device_t *trav = NULL; + gf_rdma_ctx_t *rdma_ctx = NULL; + int ret = -1; - priv = this->private; - options = &priv->options; - device_name = priv->options.device_name; - ctx = this->ctx; - trav = ctx->ib; - port = priv->options.port; - - while (trav) { - if ((!strcmp (trav->device_name, device_name)) && - (trav->port == port)) - break; - trav = trav->next; + rdma_ctx = GF_CALLOC (1, sizeof (*rdma_ctx), gf_common_mt_char); + if (rdma_ctx == NULL) { + goto out; } - if (!trav) { - - trav = GF_CALLOC (1, sizeof (*trav), - gf_common_mt_rdma_device_t); - if (trav == NULL) { - return NULL; - } - - priv->device = trav; - - trav->context = ibctx; - - ret = ib_get_active_port (trav->context); - - if (ret < 0) { - if (!port) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "Failed to find any active ports and " - "none specified in volume file," - " exiting"); - GF_FREE (trav); - return NULL; - } - } - - trav->request_ctx_pool = mem_pool_new (gf_rdma_request_context_t, - GF_RDMA_POOL_SIZE); - if (trav->request_ctx_pool == NULL) { - return NULL; - } - - trav->ioq_pool = mem_pool_new (gf_rdma_ioq_t, GF_RDMA_POOL_SIZE); - if (trav->ioq_pool == NULL) { - mem_pool_destroy (trav->request_ctx_pool); - return NULL; - } - - trav->reply_info_pool = mem_pool_new (gf_rdma_reply_info_t, - GF_RDMA_POOL_SIZE); - if (trav->reply_info_pool == NULL) { - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->ioq_pool); - return NULL; - } - - - active_port = ret; - - if (port) { - ret = ib_check_active_port (trav->context, port); - if (ret < 0) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_WARNING, - "On device %s: provided port:%u is " - "found to be offline, continuing to " - "use the same port", device_name, port); - } - } else { - priv->options.port = active_port; - port = active_port; - gf_log (GF_RDMA_LOG_NAME, GF_LOG_TRACE, - "Port unspecified in volume file using active " - "port: %u", port); - } - - trav->device_name = gf_strdup (device_name); - trav->port = port; - - trav->next = ctx->ib; - ctx->ib = trav; - - trav->send_chan = ibv_create_comp_channel (trav->context); - if (!trav->send_chan) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: could not create send completion channel", - device_name); - mem_pool_destroy (trav->ioq_pool); - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->reply_info_pool); - GF_FREE ((char *)trav->device_name); - GF_FREE (trav); - return NULL; - } - - trav->recv_chan = ibv_create_comp_channel (trav->context); - if (!trav->recv_chan) { - mem_pool_destroy (trav->ioq_pool); - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->reply_info_pool); - ibv_destroy_comp_channel (trav->send_chan); - GF_FREE ((char *)trav->device_name); - GF_FREE (trav); - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "could not create recv completion channel"); - /* TODO: cleanup current mess */ - return NULL; - } - - if (gf_rdma_create_cq (this) < 0) { - mem_pool_destroy (trav->ioq_pool); - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->reply_info_pool); - ibv_destroy_comp_channel (trav->recv_chan); - ibv_destroy_comp_channel (trav->send_chan); - GF_FREE ((char *)trav->device_name); - GF_FREE (trav); - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: could not create CQ", - this->name); - return NULL; - } - - /* protection domain */ - trav->pd = ibv_alloc_pd (trav->context); - - if (!trav->pd) { - mem_pool_destroy (trav->ioq_pool); - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->reply_info_pool); - gf_rdma_destroy_cq (this); - ibv_destroy_comp_channel (trav->recv_chan); - ibv_destroy_comp_channel (trav->send_chan); - GF_FREE ((char *)trav->device_name); - GF_FREE (trav); - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: could not allocate protection domain", - this->name); - return NULL; - } - - struct ibv_srq_init_attr attr = { - .attr = { - .max_wr = options->recv_count, - .max_sge = 1 - } - }; - trav->srq = ibv_create_srq (trav->pd, &attr); - - if (!trav->srq) { - mem_pool_destroy (trav->ioq_pool); - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->reply_info_pool); - ibv_dealloc_pd (trav->pd); - gf_rdma_destroy_cq (this); - ibv_destroy_comp_channel (trav->recv_chan); - ibv_destroy_comp_channel (trav->send_chan); - GF_FREE ((char *)trav->device_name); - GF_FREE (trav); - - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: could not create SRQ", - this->name); - return NULL; - } - - /* queue init */ - gf_rdma_queue_init (&trav->sendq); - gf_rdma_queue_init (&trav->recvq); - - if (gf_rdma_create_posts (this) < 0) { - mem_pool_destroy (trav->ioq_pool); - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->reply_info_pool); - ibv_dealloc_pd (trav->pd); - gf_rdma_destroy_cq (this); - ibv_destroy_comp_channel (trav->recv_chan); - ibv_destroy_comp_channel (trav->send_chan); - GF_FREE ((char *)trav->device_name); - GF_FREE (trav); - - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: could not allocate posts", - this->name); - return NULL; - } - - /* completion threads */ - ret = pthread_create (&trav->send_thread, - NULL, - gf_rdma_send_completion_proc, - trav->send_chan); - if (ret) { - gf_rdma_destroy_posts (this); - mem_pool_destroy (trav->ioq_pool); - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->reply_info_pool); - ibv_dealloc_pd (trav->pd); - gf_rdma_destroy_cq (this); - ibv_destroy_comp_channel (trav->recv_chan); - ibv_destroy_comp_channel (trav->send_chan); - GF_FREE ((char *)trav->device_name); - GF_FREE (trav); + rdma_ctx->rdma_cm_event_channel = rdma_create_event_channel (); + if (rdma_ctx->rdma_cm_event_channel == NULL) { + gf_log (GF_RDMA_LOG_NAME, GF_LOG_WARNING, + "rdma_cm event channel creation failed (%s)", + strerror (errno)); + goto out; + } - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "could not create send completion thread"); - return NULL; - } + ret = pthread_create (&rdma_ctx->rdma_cm_thread, NULL, + gf_rdma_cm_event_handler, + rdma_ctx->rdma_cm_event_channel); + if (ret != 0) { + gf_log (GF_RDMA_LOG_NAME, GF_LOG_WARNING, + "creation of thread to handle rdma-cm events " + "failed (%s)", strerror (ret)); + goto out; + } - ret = pthread_create (&trav->recv_thread, - NULL, - gf_rdma_recv_completion_proc, - trav->recv_chan); - if (ret) { - gf_rdma_destroy_posts (this); - mem_pool_destroy (trav->ioq_pool); - mem_pool_destroy (trav->request_ctx_pool); - mem_pool_destroy (trav->reply_info_pool); - ibv_dealloc_pd (trav->pd); - gf_rdma_destroy_cq (this); - ibv_destroy_comp_channel (trav->recv_chan); - ibv_destroy_comp_channel (trav->send_chan); - GF_FREE ((char *)trav->device_name); - GF_FREE (trav); - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "could not create recv completion thread"); - return NULL; +out: + if (ret < 0) { + if (rdma_ctx->rdma_cm_event_channel != NULL) { + rdma_destroy_event_channel (rdma_ctx->rdma_cm_event_channel); } - /* qpreg */ - pthread_mutex_init (&trav->qpreg.lock, NULL); - for (i=0; i<42; i++) { - trav->qpreg.ents[i].next = &trav->qpreg.ents[i]; - trav->qpreg.ents[i].prev = &trav->qpreg.ents[i]; - } + GF_FREE (rdma_ctx); + rdma_ctx = NULL; } - return trav; + + return rdma_ctx; } static int32_t gf_rdma_init (rpc_transport_t *this) { gf_rdma_private_t *priv = NULL; - gf_rdma_options_t *options = NULL; - struct ibv_device **dev_list; - struct ibv_context *ib_ctx = NULL; int32_t ret = 0; + glusterfs_ctx_t *ctx = NULL; + gf_rdma_options_t *options = NULL; + + ctx= this->ctx; priv = this->private; - options = &priv->options; ibv_fork_init (); gf_rdma_options_init (this); - { - dev_list = ibv_get_device_list (NULL); - - if (!dev_list) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_CRITICAL, - "Failed to get IB devices"); - ret = -1; - goto cleanup; - } - - if (!*dev_list) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_CRITICAL, - "No IB devices found"); - ret = -1; - goto cleanup; - } - - if (!options->device_name) { - if (*dev_list) { - options->device_name = - gf_strdup (ibv_get_device_name (*dev_list)); - } else { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_CRITICAL, - "IB device list is empty. Check for " - "'ib_uverbs' module"); - return -1; - goto cleanup; - } - } - - while (*dev_list) { - if (!strcmp (ibv_get_device_name (*dev_list), - options->device_name)) { - ib_ctx = ibv_open_device (*dev_list); - - if (!ib_ctx) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_ERROR, - "Failed to get infiniband" - "device context"); - ret = -1; - goto cleanup; - } - break; - } - ++dev_list; - } - - priv->device = gf_rdma_get_device (this, ib_ctx); - - if (!priv->device) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "could not create rdma device for %s", - options->device_name); - ret = -1; - goto cleanup; - } - } + options = &priv->options; + priv->peer.send_count = options->send_count; + priv->peer.recv_count = options->recv_count; + priv->peer.send_size = options->send_size; + priv->peer.recv_size = options->recv_size; priv->peer.trans = this; INIT_LIST_HEAD (&priv->peer.ioq); - pthread_mutex_init (&priv->read_mutex, NULL); pthread_mutex_init (&priv->write_mutex, NULL); pthread_mutex_init (&priv->recv_mutex, NULL); pthread_cond_init (&priv->recv_cond, NULL); -cleanup: - if (-1 == ret) { - if (ib_ctx) - ibv_close_device (ib_ctx); + pthread_mutex_lock (&ctx->lock); + { + if (ctx->ib == NULL) { + ctx->ib = __gf_rdma_ctx_create (); + if (ctx->ib == NULL) { + ret = -1; + } + } } - - if (dev_list) - ibv_free_device_list (dev_list); + pthread_mutex_unlock (&ctx->lock); return ret; } @@ -4194,537 +4236,54 @@ gf_rdma_disconnect (rpc_transport_t *this) static int32_t -__tcp_connect_finish (int fd) -{ - int ret = -1; - int optval = 0; - socklen_t optlen = sizeof (int); - - ret = getsockopt (fd, SOL_SOCKET, SO_ERROR, - (void *)&optval, &optlen); - - if (ret == 0 && optval) - { - errno = optval; - ret = -1; - } - - return ret; -} - -static inline void -gf_rdma_fill_handshake_data (char *buf, struct gf_rdma_nbio *nbio, - gf_rdma_private_t *priv) -{ - sprintf (buf, - "QP1:RECV_BLKSIZE=%08x:SEND_BLKSIZE=%08x\n" - "QP1:LID=%04x:QPN=%06x:PSN=%06x\n", - priv->peer.recv_size, - priv->peer.send_size, - priv->peer.local_lid, - priv->peer.local_qpn, - priv->peer.local_psn); - - nbio->vector.iov_base = buf; - nbio->vector.iov_len = strlen (buf) + 1; - nbio->count = 1; - return; -} - -static inline void -gf_rdma_fill_handshake_ack (char *buf, struct gf_rdma_nbio *nbio) -{ - sprintf (buf, "DONE\n"); - nbio->vector.iov_base = buf; - nbio->vector.iov_len = strlen (buf) + 1; - nbio->count = 1; - return; -} - -static int -gf_rdma_handshake_pollin (rpc_transport_t *this) -{ - int ret = 0; - gf_rdma_private_t *priv = NULL; - char *buf = NULL; - int32_t recv_buf_size = 0, send_buf_size; - socklen_t sock_len = 0; - - priv = this->private; - buf = priv->handshake.incoming.buf; - - if (priv->handshake.incoming.state == GF_RDMA_HANDSHAKE_COMPLETE) { - return -1; - } - - pthread_mutex_lock (&priv->write_mutex); - { - while (priv->handshake.incoming.state != GF_RDMA_HANDSHAKE_COMPLETE) - { - switch (priv->handshake.incoming.state) - { - case GF_RDMA_HANDSHAKE_START: - buf = priv->handshake.incoming.buf = GF_CALLOC (1, 256, gf_common_mt_char); - gf_rdma_fill_handshake_data (buf, &priv->handshake.incoming, priv); - buf[0] = 0; - priv->handshake.incoming.state = GF_RDMA_HANDSHAKE_RECEIVING_DATA; - break; - - case GF_RDMA_HANDSHAKE_RECEIVING_DATA: - ret = __tcp_readv (this, - &priv->handshake.incoming.vector, - priv->handshake.incoming.count, - &priv->handshake.incoming.pending_vector, - &priv->handshake.incoming.pending_count); - if (ret == -1) { - goto unlock; - } - - if (ret > 0) { - gf_log (this->name, GF_LOG_TRACE, - "partial header read on NB socket. continue later"); - goto unlock; - } - - if (!ret) { - priv->handshake.incoming.state = GF_RDMA_HANDSHAKE_RECEIVED_DATA; - } - break; - - case GF_RDMA_HANDSHAKE_RECEIVED_DATA: - ret = sscanf (buf, - "QP1:RECV_BLKSIZE=%08x:SEND_BLKSIZE=%08x\n" - "QP1:LID=%04x:QPN=%06x:PSN=%06x\n", - &recv_buf_size, - &send_buf_size, - &priv->peer.remote_lid, - &priv->peer.remote_qpn, - &priv->peer.remote_psn); - - if ((ret != 5) && (strncmp (buf, "QP1:", 4))) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_CRITICAL, - "%s: remote-host(%s)'s " - "transport type is different", - this->name, - this->peerinfo.identifier); - ret = -1; - goto unlock; - } - - if (recv_buf_size < priv->peer.recv_size) - priv->peer.recv_size = recv_buf_size; - if (send_buf_size < priv->peer.send_size) - priv->peer.send_size = send_buf_size; - - gf_log (GF_RDMA_LOG_NAME, GF_LOG_TRACE, - "%s: transacted recv_size=%d " - "send_size=%d", - this->name, priv->peer.recv_size, - priv->peer.send_size); - - priv->peer.quota = priv->peer.send_count; - - if (gf_rdma_connect_qp (this)) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_ERROR, - "%s: failed to connect with " - "remote QP", this->name); - ret = -1; - goto unlock; - } - gf_rdma_fill_handshake_ack (buf, &priv->handshake.incoming); - buf[0] = 0; - priv->handshake.incoming.state = GF_RDMA_HANDSHAKE_RECEIVING_ACK; - break; - - case GF_RDMA_HANDSHAKE_RECEIVING_ACK: - ret = __tcp_readv (this, - &priv->handshake.incoming.vector, - priv->handshake.incoming.count, - &priv->handshake.incoming.pending_vector, - &priv->handshake.incoming.pending_count); - if (ret == -1) { - goto unlock; - } - - if (ret > 0) { - gf_log (this->name, GF_LOG_TRACE, - "partial header read on NB " - "socket. continue later"); - goto unlock; - } - - if (!ret) { - priv->handshake.incoming.state = GF_RDMA_HANDSHAKE_RECEIVED_ACK; - } - break; - - case GF_RDMA_HANDSHAKE_RECEIVED_ACK: - if (strncmp (buf, "DONE", 4)) { - gf_log (GF_RDMA_LOG_NAME, - GF_LOG_DEBUG, - "%s: handshake-3 did not " - "return 'DONE' (%s)", - this->name, buf); - ret = -1; - goto unlock; - } - ret = 0; - priv->connected = 1; - sock_len = sizeof (struct sockaddr_storage); - getpeername (priv->sock, - (struct sockaddr *) &this->peerinfo.sockaddr, - &sock_len); - - GF_FREE (priv->handshake.incoming.buf); - priv->handshake.incoming.buf = NULL; - priv->handshake.incoming.state = GF_RDMA_HANDSHAKE_COMPLETE; - } - } - } -unlock: - pthread_mutex_unlock (&priv->write_mutex); - - if (ret == -1) { - rpc_transport_disconnect (this); - } else { - ret = 0; - } - - - if (!ret && priv->connected) { - if (priv->is_server) { - ret = rpc_transport_notify (priv->listener, - RPC_TRANSPORT_ACCEPT, - this); - } else { - ret = rpc_transport_notify (this, RPC_TRANSPORT_CONNECT, - this); - } - } - - return ret; -} - -static int -gf_rdma_handshake_pollout (rpc_transport_t *this) -{ - gf_rdma_private_t *priv = NULL; - char *buf = NULL; - int32_t ret = 0; - - priv = this->private; - buf = priv->handshake.outgoing.buf; - - if (priv->handshake.outgoing.state == GF_RDMA_HANDSHAKE_COMPLETE) { - return 0; - } - - pthread_mutex_unlock (&priv->write_mutex); - { - while (priv->handshake.outgoing.state - != GF_RDMA_HANDSHAKE_COMPLETE) - { - switch (priv->handshake.outgoing.state) - { - case GF_RDMA_HANDSHAKE_START: - buf = priv->handshake.outgoing.buf - = GF_CALLOC (1, 256, gf_common_mt_char); - gf_rdma_fill_handshake_data (buf, - &priv->handshake.outgoing, priv); - priv->handshake.outgoing.state - = GF_RDMA_HANDSHAKE_SENDING_DATA; - break; - - case GF_RDMA_HANDSHAKE_SENDING_DATA: - ret = __tcp_writev (this, - &priv->handshake.outgoing.vector, - priv->handshake.outgoing.count, - &priv->handshake.outgoing.pending_vector, - &priv->handshake.outgoing.pending_count); - if (ret == -1) { - goto unlock; - } - - if (ret > 0) { - gf_log (this->name, GF_LOG_TRACE, - "partial header read on NB " - "socket. continue later"); - goto unlock; - } - - if (!ret) { - priv->handshake.outgoing.state - = GF_RDMA_HANDSHAKE_SENT_DATA; - } - break; - - case GF_RDMA_HANDSHAKE_SENT_DATA: - gf_rdma_fill_handshake_ack (buf, - &priv->handshake.outgoing); - priv->handshake.outgoing.state - = GF_RDMA_HANDSHAKE_SENDING_ACK; - break; - - case GF_RDMA_HANDSHAKE_SENDING_ACK: - ret = __tcp_writev (this, - &priv->handshake.outgoing.vector, - priv->handshake.outgoing.count, - &priv->handshake.outgoing.pending_vector, - &priv->handshake.outgoing.pending_count); - - if (ret == -1) { - goto unlock; - } - - if (ret > 0) { - gf_log (this->name, GF_LOG_TRACE, - "partial header read on NB " - "socket. continue later"); - goto unlock; - } - - if (!ret) { - GF_FREE (priv->handshake.outgoing.buf); - priv->handshake.outgoing.buf = NULL; - priv->handshake.outgoing.state - = GF_RDMA_HANDSHAKE_COMPLETE; - } - break; - } - } - } -unlock: - pthread_mutex_unlock (&priv->write_mutex); - - if (ret == -1) { - rpc_transport_disconnect (this); - } else { - ret = 0; - } - - return ret; -} - -static int -gf_rdma_handshake_pollerr (rpc_transport_t *this) -{ - gf_rdma_private_t *priv = this->private; - char need_unref = 0, connected = 0; - - gf_log_callingfn (GF_RDMA_LOG_NAME, GF_LOG_WARNING, - "%s: peer (%s) disconnected, cleaning up", - this->name, this->peerinfo.identifier); - - pthread_mutex_lock (&priv->write_mutex); - { - __gf_rdma_teardown (this); - - connected = priv->connected; - if (priv->sock != -1) { - event_unregister (this->ctx->event_pool, - priv->sock, priv->idx); - need_unref = 1; - - if (close (priv->sock) != 0) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "close () - error: %s", - strerror (errno)); - } - priv->tcp_connected = priv->connected = 0; - priv->sock = -1; - } - - if (priv->handshake.incoming.buf) { - GF_FREE (priv->handshake.incoming.buf); - priv->handshake.incoming.buf = NULL; - } - - priv->handshake.incoming.state = GF_RDMA_HANDSHAKE_START; - - if (priv->handshake.outgoing.buf) { - GF_FREE (priv->handshake.outgoing.buf); - priv->handshake.outgoing.buf = NULL; - } - - priv->handshake.outgoing.state = GF_RDMA_HANDSHAKE_START; - } - pthread_mutex_unlock (&priv->write_mutex); - - if (connected) { - rpc_transport_notify (this, RPC_TRANSPORT_DISCONNECT, this); - } - - if (need_unref) - rpc_transport_unref (this); - - return 0; -} - - -static int -tcp_connect_finish (rpc_transport_t *this) -{ - gf_rdma_private_t *priv = NULL; - int error = 0, ret = 0; - - priv = this->private; - pthread_mutex_lock (&priv->write_mutex); - { - ret = __tcp_connect_finish (priv->sock); - - if (!ret) { - this->myinfo.sockaddr_len = - sizeof (this->myinfo.sockaddr); - ret = getsockname (priv->sock, - (struct sockaddr *)&this->myinfo.sockaddr, - &this->myinfo.sockaddr_len); - if (ret == -1) - { - gf_log (this->name, GF_LOG_ERROR, - "getsockname on new client-socket %d " - "failed (%s)", - priv->sock, strerror (errno)); - close (priv->sock); - error = 1; - goto unlock; - } - - gf_rdma_get_transport_identifiers (this); - priv->tcp_connected = 1; - } - - if (ret == -1 && errno != EINPROGRESS) { - gf_log (this->name, GF_LOG_ERROR, - "tcp connect to %s failed (%s)", - this->peerinfo.identifier, strerror (errno)); - error = 1; - } - } -unlock: - pthread_mutex_unlock (&priv->write_mutex); - - if (error) { - rpc_transport_disconnect (this); - } - - return ret; -} - -static int -gf_rdma_event_handler (int fd, int idx, void *data, - int poll_in, int poll_out, int poll_err) -{ - rpc_transport_t *this = NULL; - gf_rdma_private_t *priv = NULL; - gf_rdma_options_t *options = NULL; - int ret = 0; - - this = data; - priv = this->private; - if (!priv->tcp_connected) { - ret = tcp_connect_finish (this); - if (priv->tcp_connected) { - options = &priv->options; - - priv->peer.send_count = options->send_count; - priv->peer.recv_count = options->recv_count; - priv->peer.send_size = options->send_size; - priv->peer.recv_size = options->recv_size; - - if ((ret = gf_rdma_create_qp (this)) < 0) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: could not create QP", - this->name); - rpc_transport_disconnect (this); - } - } - } - - if (!ret && poll_out && priv->tcp_connected) { - ret = gf_rdma_handshake_pollout (this); - } - - if (!ret && !poll_err && poll_in && priv->tcp_connected) { - if (priv->handshake.incoming.state - == GF_RDMA_HANDSHAKE_COMPLETE) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: pollin received on tcp socket (peer: %s) " - "after handshake is complete", - this->name, this->peerinfo.identifier); - gf_rdma_handshake_pollerr (this); - return 0; - } - - ret = gf_rdma_handshake_pollin (this); - if (ret < 0) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_WARNING, - "handshake pollin failed"); - } - } - - if (ret < 0 || poll_err) { - ret = gf_rdma_handshake_pollerr (this); - } - - return 0; -} - -static int -__tcp_nonblock (int fd) -{ - int flags = 0; - int ret = -1; - - flags = fcntl (fd, F_GETFL); - - if (flags != -1) - ret = fcntl (fd, F_SETFL, flags | O_NONBLOCK); - - return ret; -} - -static int32_t gf_rdma_connect (struct rpc_transport *this, int port) { gf_rdma_private_t *priv = NULL; int32_t ret = 0; - gf_boolean_t non_blocking = 1; union gf_sock_union sock_union = {{0, }, }; socklen_t sockaddr_len = 0; + gf_rdma_peer_t *peer = NULL; + gf_rdma_ctx_t *rdma_ctx = NULL; + gf_boolean_t connected = _gf_false; priv = this->private; + peer = &priv->peer; + + rpc_transport_ref (this); + ret = gf_rdma_client_get_remote_sockaddr (this, &sock_union.sa, &sockaddr_len, port); if (ret != 0) { gf_log (this->name, GF_LOG_DEBUG, "cannot get remote address to connect"); - return ret; + goto out; } + rdma_ctx = this->ctx->ib; pthread_mutex_lock (&priv->write_mutex); { - if (priv->sock != -1) { - ret = 0; + if (peer->cm_id != NULL) { + ret = -1; + errno = EINPROGRESS; + connected = _gf_true; goto unlock; } - priv->sock = socket (sock_union.sa.sa_family, SOCK_STREAM, 0); + priv->entity = GF_RDMA_CLIENT; - if (priv->sock == -1) { + ret = rdma_create_id (rdma_ctx->rdma_cm_event_channel, + &peer->cm_id, this, RDMA_PS_TCP); + if (ret != 0) { gf_log (this->name, GF_LOG_ERROR, - "socket () - error: %s", strerror (errno)); + "creation of rdma_cm_id failed (%s)", + strerror (errno)); ret = -errno; goto unlock; } - gf_log (this->name, GF_LOG_TRACE, - "socket fd = %d", priv->sock); - memcpy (&this->peerinfo.sockaddr, &sock_union.storage, sockaddr_len); this->peerinfo.sockaddr_len = sockaddr_len; @@ -4735,201 +4294,84 @@ gf_rdma_connect (struct rpc_transport *this, int port) ((struct sockaddr *) &this->myinfo.sockaddr)->sa_family = ((struct sockaddr *)&this->peerinfo.sockaddr)->sa_family; - if (non_blocking) - { - ret = __tcp_nonblock (priv->sock); - - if (ret == -1) - { - gf_log (this->name, GF_LOG_ERROR, - "could not set socket %d to non " - "blocking mode (%s)", - priv->sock, strerror (errno)); - close (priv->sock); - priv->sock = -1; - goto unlock; - } - } - ret = gf_rdma_client_bind (this, (struct sockaddr *)&this->myinfo.sockaddr, &this->myinfo.sockaddr_len, - priv->sock); - if (ret == -1) - { + peer->cm_id); + if (ret != 0) { gf_log (this->name, GF_LOG_WARNING, "client bind failed: %s", strerror (errno)); - close (priv->sock); - priv->sock = -1; goto unlock; } - ret = connect (priv->sock, - (struct sockaddr *)&this->peerinfo.sockaddr, - this->peerinfo.sockaddr_len); - if (ret == -1 && errno != EINPROGRESS) - { - gf_log (this->name, GF_LOG_ERROR, - "connection attempt failed (%s)", + ret = rdma_resolve_addr (peer->cm_id, NULL, &sock_union.sa, + 2000); + if (ret != 0) { + gf_log (this->name, GF_LOG_WARNING, + "rdma_resolve_addr failed (%s)", strerror (errno)); - close (priv->sock); - priv->sock = -1; goto unlock; } - priv->tcp_connected = priv->connected = 0; - - rpc_transport_ref (this); - - priv->handshake.incoming.state = GF_RDMA_HANDSHAKE_START; - priv->handshake.outgoing.state = GF_RDMA_HANDSHAKE_START; - - priv->idx = event_register (this->ctx->event_pool, - priv->sock, gf_rdma_event_handler, - this, 1, 1); + priv->connected = 0; } unlock: pthread_mutex_unlock (&priv->write_mutex); - return ret; -} - -static int -gf_rdma_server_event_handler (int fd, int idx, void *data, - int poll_in, int poll_out, int poll_err) -{ - int32_t main_sock = -1; - rpc_transport_t *this = NULL, *trans = NULL; - gf_rdma_private_t *priv = NULL; - gf_rdma_private_t *trans_priv = NULL; - gf_rdma_options_t *options = NULL; - - if (!poll_in) { - return 0; - } - - trans = data; - trans_priv = (gf_rdma_private_t *) trans->private; - - this = GF_CALLOC (1, sizeof (rpc_transport_t), - gf_common_mt_rpc_transport_t); - if (this == NULL) { - return -1; - } - - this->listener = trans; - - priv = GF_CALLOC (1, sizeof (gf_rdma_private_t), - gf_common_mt_rdma_private_t); - if (priv == NULL) { - GF_FREE (priv); - return -1; - } - this->private = priv; - /* Copy all the rdma related values in priv, from trans_priv - as other than QP, all the values remain same */ - priv->device = trans_priv->device; - priv->options = trans_priv->options; - priv->is_server = 1; - priv->listener = trans; - - options = &priv->options; - - this->ops = trans->ops; - this->init = trans->init; - this->fini = trans->fini; - this->ctx = trans->ctx; - this->name = gf_strdup (trans->name); - this->notify = trans->notify; - this->mydata = trans->mydata; - - memcpy (&this->myinfo.sockaddr, &trans->myinfo.sockaddr, - trans->myinfo.sockaddr_len); - this->myinfo.sockaddr_len = trans->myinfo.sockaddr_len; - - main_sock = (trans_priv)->sock; - this->peerinfo.sockaddr_len = sizeof (this->peerinfo.sockaddr); - priv->sock = accept (main_sock, - (struct sockaddr *)&this->peerinfo.sockaddr, - &this->peerinfo.sockaddr_len); - if (priv->sock == -1) { - gf_log ("rdma/server", GF_LOG_ERROR, - "accept() failed: %s", - strerror (errno)); - GF_FREE (this->private); - GF_FREE (this); - return -1; - } - - priv->peer.trans = this; - rpc_transport_ref (this); - - gf_rdma_get_transport_identifiers (this); - - priv->tcp_connected = 1; - priv->handshake.incoming.state = GF_RDMA_HANDSHAKE_START; - priv->handshake.outgoing.state = GF_RDMA_HANDSHAKE_START; - - priv->peer.send_count = options->send_count; - priv->peer.recv_count = options->recv_count; - priv->peer.send_size = options->send_size; - priv->peer.recv_size = options->recv_size; - INIT_LIST_HEAD (&priv->peer.ioq); +out: + if (ret != 0) { + if (!connected) { + gf_rdma_teardown (this); + } - if (gf_rdma_create_qp (this) < 0) { - gf_log (GF_RDMA_LOG_NAME, GF_LOG_ERROR, - "%s: could not create QP", - this->name); - rpc_transport_disconnect (this); - return -1; + rpc_transport_unref (this); } - priv->idx = event_register (this->ctx->event_pool, priv->sock, - gf_rdma_event_handler, this, 1, 1); - - pthread_mutex_init (&priv->read_mutex, NULL); - pthread_mutex_init (&priv->write_mutex, NULL); - pthread_mutex_init (&priv->recv_mutex, NULL); - /* pthread_cond_init (&priv->recv_cond, NULL); */ - return 0; + return ret; } + static int32_t gf_rdma_listen (rpc_transport_t *this) { union gf_sock_union sock_union = {{0, }, }; socklen_t sockaddr_len = 0; gf_rdma_private_t *priv = NULL; - int opt = 1, ret = 0; + gf_rdma_peer_t *peer = NULL; + int ret = 0; + gf_rdma_ctx_t *rdma_ctx = NULL; char service[NI_MAXSERV], host[NI_MAXHOST]; priv = this->private; - memset (&sock_union, 0, sizeof (sock_union)); - ret = gf_rdma_server_get_local_sockaddr (this, - &sock_union.sa, + peer = &priv->peer; + + priv->entity = GF_RDMA_SERVER_LISTENER; + + rdma_ctx = this->ctx->ib; + + ret = gf_rdma_server_get_local_sockaddr (this, &sock_union.sa, &sockaddr_len); if (ret != 0) { - gf_log (this->name, GF_LOG_DEBUG, + gf_log (this->name, GF_LOG_WARNING, "cannot find network address of server to bind to"); goto err; } - priv->sock = socket (sock_union.sa.sa_family, SOCK_STREAM, 0); - if (priv->sock == -1) { - gf_log ("rdma/server", GF_LOG_CRITICAL, - "init: failed to create socket, error: %s", + ret = rdma_create_id (rdma_ctx->rdma_cm_event_channel, + &peer->cm_id, this, RDMA_PS_TCP); + if (ret != 0) { + gf_log (this->name, GF_LOG_WARNING, + "creation of rdma_cm_id failed (%s)", strerror (errno)); - GF_FREE (this->private); - ret = -1; goto err; } - memcpy (&this->myinfo.sockaddr, &sock_union.storage, sockaddr_len); + memcpy (&this->myinfo.sockaddr, &sock_union.storage, + sockaddr_len); this->myinfo.sockaddr_len = sockaddr_len; ret = getnameinfo ((struct sockaddr *)&this->myinfo.sockaddr, - this->myinfo.sockaddr_len, - host, sizeof (host), + this->myinfo.sockaddr_len, host, sizeof (host), service, sizeof (service), NI_NUMERICHOST); if (ret != 0) { @@ -4937,34 +4379,38 @@ gf_rdma_listen (rpc_transport_t *this) "getnameinfo failed (%s)", gai_strerror (ret)); goto err; } + sprintf (this->myinfo.identifier, "%s:%s", host, service); - setsockopt (priv->sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof (opt)); - if (bind (priv->sock, &sock_union.sa, sockaddr_len) != 0) { - ret = -1; - gf_log ("rdma/server", GF_LOG_ERROR, - "init: failed to bind to socket for %s (%s)", - this->myinfo.identifier, strerror (errno)); + ret = rdma_bind_addr (peer->cm_id, &sock_union.sa); + if (ret != 0) { + gf_log (this->name, GF_LOG_WARNING, + "rdma_bind_addr failed (%s)", strerror (errno)); goto err; } - if (listen (priv->sock, 10) != 0) { - gf_log ("rdma/server", GF_LOG_ERROR, - "init: listen () failed on socket for %s (%s)", - this->myinfo.identifier, strerror (errno)); - ret = -1; + ret = rdma_listen (peer->cm_id, 10); + if (ret != 0) { + gf_log (this->name, GF_LOG_WARNING, + "rdma_listen failed (%s)", strerror (errno)); goto err; } - /* Register the main socket */ - priv->idx = event_register (this->ctx->event_pool, priv->sock, - gf_rdma_server_event_handler, - rpc_transport_ref (this), 1, 0); + rpc_transport_ref (this); + ret = 0; err: + if (ret < 0) { + if (peer->cm_id != NULL) { + rdma_destroy_id (peer->cm_id); + peer->cm_id = NULL; + } + } + return ret; } + struct rpc_transport_ops tops = { .submit_request = gf_rdma_submit_request, .submit_reply = gf_rdma_submit_reply, @@ -4983,7 +4429,6 @@ init (rpc_transport_t *this) return -1; this->private = priv; - priv->sock = -1; if (gf_rdma_init (this)) { gf_log (this->name, GF_LOG_ERROR, @@ -5007,13 +4452,6 @@ fini (struct rpc_transport *this) if (priv) { pthread_mutex_destroy (&priv->recv_mutex); pthread_mutex_destroy (&priv->write_mutex); - pthread_mutex_destroy (&priv->read_mutex); - - /* pthread_cond_destroy (&priv->recv_cond); */ - if (priv->sock != -1) { - event_unregister (this->ctx->event_pool, - priv->sock, priv->idx); - } gf_log (this->name, GF_LOG_TRACE, "called fini on transport: %p", this); |