diff options
Diffstat (limited to 'src/msg/async/rdma/RDMAIWARPConnectedSocketImpl.cc')
| -rw-r--r-- | src/msg/async/rdma/RDMAIWARPConnectedSocketImpl.cc | 183 |
1 files changed, 183 insertions, 0 deletions
diff --git a/src/msg/async/rdma/RDMAIWARPConnectedSocketImpl.cc b/src/msg/async/rdma/RDMAIWARPConnectedSocketImpl.cc new file mode 100644 index 000000000..606dbd281 --- /dev/null +++ b/src/msg/async/rdma/RDMAIWARPConnectedSocketImpl.cc @@ -0,0 +1,183 @@ +#include "RDMAStack.h" + +#define dout_subsys ceph_subsys_ms +#undef dout_prefix +#define dout_prefix *_dout << " RDMAIWARPConnectedSocketImpl " + +#define TIMEOUT_MS 3000 +#define RETRY_COUNT 7 + +RDMAIWARPConnectedSocketImpl::RDMAIWARPConnectedSocketImpl(CephContext *cct, std::shared_ptr<Infiniband>& ib, + std::shared_ptr<RDMADispatcher>& rdma_dispatcher, + RDMAWorker *w, RDMACMInfo *info) + : RDMAConnectedSocketImpl(cct, ib, rdma_dispatcher, w), cm_con_handler(new C_handle_cm_connection(this)) +{ + status = IDLE; + notify_fd = eventfd(0, EFD_CLOEXEC|EFD_NONBLOCK); + if (info) { + is_server = true; + cm_id = info->cm_id; + cm_channel = info->cm_channel; + status = RDMA_ID_CREATED; + peer_qpn = info->qp_num; + if (alloc_resource()) { + close_notify(); + return; + } + worker->center.submit_to(worker->center.get_id(), [this]() { + worker->center.create_file_event(cm_channel->fd, EVENT_READABLE, cm_con_handler); + status = CHANNEL_FD_CREATED; + }, false); + status = RESOURCE_ALLOCATED; + qp->get_local_cm_meta().peer_qpn = peer_qpn; + qp->get_peer_cm_meta().local_qpn = peer_qpn; + } else { + is_server = false; + cm_channel = rdma_create_event_channel(); + rdma_create_id(cm_channel, &cm_id, NULL, RDMA_PS_TCP); + status = RDMA_ID_CREATED; + ldout(cct, 20) << __func__ << " successfully created cm id: " << cm_id << dendl; + } +} + +RDMAIWARPConnectedSocketImpl::~RDMAIWARPConnectedSocketImpl() { + ldout(cct, 20) << __func__ << " destruct." << dendl; + std::unique_lock l(close_mtx); + close_condition.wait(l, [&] { return closed; }); + if (status >= RDMA_ID_CREATED) { + rdma_destroy_id(cm_id); + rdma_destroy_event_channel(cm_channel); + } +} + +int RDMAIWARPConnectedSocketImpl::try_connect(const entity_addr_t& peer_addr, const SocketOptions &opts) { + worker->center.create_file_event(cm_channel->fd, EVENT_READABLE, cm_con_handler); + status = CHANNEL_FD_CREATED; + if (rdma_resolve_addr(cm_id, NULL, const_cast<struct sockaddr*>(peer_addr.get_sockaddr()), TIMEOUT_MS)) { + lderr(cct) << __func__ << " failed to resolve addr" << dendl; + return -1; + } + return 0; +} + +void RDMAIWARPConnectedSocketImpl::close() { + error = ECONNRESET; + active = false; + if (status >= CONNECTED) { + rdma_disconnect(cm_id); + } + close_notify(); +} + +void RDMAIWARPConnectedSocketImpl::shutdown() { + error = ECONNRESET; + active = false; +} + +void RDMAIWARPConnectedSocketImpl::handle_cm_connection() { + struct rdma_cm_event *event; + rdma_get_cm_event(cm_channel, &event); + ldout(cct, 20) << __func__ << " event name: " << rdma_event_str(event->event) + << " (cm id: " << cm_id << ")" << dendl; + struct rdma_conn_param cm_params; + switch (event->event) { + case RDMA_CM_EVENT_ADDR_RESOLVED: + status = ADDR_RESOLVED; + if (rdma_resolve_route(cm_id, TIMEOUT_MS)) { + lderr(cct) << __func__ << " failed to resolve rdma addr" << dendl; + notify(); + } + break; + + case RDMA_CM_EVENT_ROUTE_RESOLVED: + status = ROUTE_RESOLVED; + if (alloc_resource()) { + lderr(cct) << __func__ << " failed to alloc resource while resolving the route" << dendl; + connected = -ECONNREFUSED; + notify(); + break; + } + + // FIPS zeroization audit 20191115: this memset is not security related. + memset(&cm_params, 0, sizeof(cm_params)); + cm_params.retry_count = RETRY_COUNT; + cm_params.qp_num = local_qpn; + if (rdma_connect(cm_id, &cm_params)) { + lderr(cct) << __func__ << " failed to connect remote rdma port" << dendl; + connected = -ECONNREFUSED; + notify(); + } + break; + + case RDMA_CM_EVENT_ESTABLISHED: + ldout(cct, 20) << __func__ << " qp_num=" << cm_id->qp->qp_num << dendl; + status = CONNECTED; + if (!is_server) { + peer_qpn = event->param.conn.qp_num; + activate(); + qp->get_local_cm_meta().peer_qpn = peer_qpn; + qp->get_peer_cm_meta().local_qpn = peer_qpn; + notify(); + } + 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: + lderr(cct) << __func__ << " rdma connection rejected" << dendl; + connected = -ECONNREFUSED; + notify(); + break; + + case RDMA_CM_EVENT_DISCONNECTED: + status = DISCONNECTED; + close_notify(); + if (!error) { + error = ECONNRESET; + notify(); + } + break; + + case RDMA_CM_EVENT_DEVICE_REMOVAL: + break; + + default: + ceph_abort_msg("unhandled event"); + break; + } + rdma_ack_cm_event(event); +} + +void RDMAIWARPConnectedSocketImpl::activate() { + ldout(cct, 30) << __func__ << dendl; + active = true; + connected = 1; +} + +int RDMAIWARPConnectedSocketImpl::alloc_resource() { + ldout(cct, 30) << __func__ << dendl; + qp = ib->create_queue_pair(cct, dispatcher->get_tx_cq(), + dispatcher->get_rx_cq(), IBV_QPT_RC, cm_id); + if (!qp) { + return -1; + } + local_qpn = qp->get_local_qp_number(); + dispatcher->register_qp(qp, this); + dispatcher->perf_logger->inc(l_msgr_rdma_created_queue_pair); + dispatcher->perf_logger->inc(l_msgr_rdma_active_queue_pair); + return 0; +} + +void RDMAIWARPConnectedSocketImpl::close_notify() { + ldout(cct, 30) << __func__ << dendl; + if (status >= CHANNEL_FD_CREATED) { + worker->center.delete_file_event(cm_channel->fd, EVENT_READABLE); + } + std::unique_lock l(close_mtx); + if (!closed) { + closed = true; + close_condition.notify_all(); + } +} |