X-Git-Url: https://gerrit.fd.io/r/gitweb?p=vpp.git;a=blobdiff_plain;f=src%2Fvcl%2Fvppcom.c;h=c509f93557c370ad65701628eaaabf984388af2a;hp=6079bd18179e48f22d7654e8ad6884c681ef5c59;hb=07063b8ea;hpb=070453d872b22b75182381c44817c9486d280ec4 diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 6079bd18179..c509f93557c 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -1,5 +1,5 @@ /* - * Copyright (c) 2017 Cisco and/or its affiliates. + * Copyright (c) 2017-2019 Cisco and/or its affiliates. * Licensed under the Apache License, Version 2.0 (the "License"); * you may not use this * You may obtain a copy of the License at: @@ -15,94 +15,53 @@ #include #include -#include #include -#include #include #include +#include -static u8 not_ready; +__thread uword __vcl_worker_index = ~0; -void -sigsegv_signal (int signum) +static int +vcl_segment_is_not_mounted (vcl_worker_t * wrk, u64 segment_handle) { - not_ready = 1; -} + u32 segment_index; -static void -vcl_wait_for_memory (void *mem) -{ - u8 __clib_unused test; - if (vcm->mounting_segment) - { - while (vcm->mounting_segment) - ; - return; - } - if (1 || vcm->debug) - { - usleep (1e5); - return; - } - if (signal (SIGSEGV, sigsegv_signal)) - { - perror ("signal()"); - return; - } - not_ready = 0; + if (segment_handle == VCL_INVALID_SEGMENT_HANDLE) + return 0; -again: - test = *(u8 *) mem; - if (not_ready) - { - not_ready = 0; - usleep (1); - goto again; - } + segment_index = vcl_segment_table_lookup (segment_handle); + if (segment_index != VCL_INVALID_SEGMENT_INDEX) + return 0; - signal (SIGSEGV, SIG_DFL); + return 1; } -static const char * -vppcom_app_state_str (app_state_t state) +static inline int +vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 n_max_msg) { - char *st; + svm_msg_q_msg_t *msg; + u32 n_msgs; + int i; - switch (state) + n_msgs = clib_min (svm_msg_q_size (mq), n_max_msg); + for (i = 0; i < n_msgs; i++) { - case STATE_APP_START: - st = "STATE_APP_START"; - break; - - case STATE_APP_CONN_VPP: - st = "STATE_APP_CONN_VPP"; - break; - - case STATE_APP_ENABLED: - st = "STATE_APP_ENABLED"; - break; - - case STATE_APP_ATTACHED: - st = "STATE_APP_ATTACHED"; - break; - - default: - st = "UNKNOWN_APP_STATE"; - break; + vec_add2 (wrk->mq_msg_vector, msg, 1); + svm_msg_q_sub_w_lock (mq, msg); } - - return st; + return n_msgs; } const char * -vppcom_session_state_str (session_state_t state) +vppcom_session_state_str (vcl_session_state_t state) { char *st; switch (state) { - case STATE_START: - st = "STATE_START"; + case STATE_CLOSED: + st = "STATE_CLOSED"; break; case STATE_CONNECT: @@ -117,16 +76,24 @@ vppcom_session_state_str (session_state_t state) st = "STATE_ACCEPT"; break; - case STATE_CLOSE_ON_EMPTY: - st = "STATE_CLOSE_ON_EMPTY"; + case STATE_VPP_CLOSING: + st = "STATE_VPP_CLOSING"; break; case STATE_DISCONNECT: st = "STATE_DISCONNECT"; break; - case STATE_FAILED: - st = "STATE_FAILED"; + case STATE_DETACHED: + st = "STATE_DETACHED"; + break; + + case STATE_UPDATED: + st = "STATE_UPDATED"; + break; + + case STATE_LISTEN_NO_MQ: + st = "STATE_LISTEN_NO_MQ"; break; default: @@ -224,37 +191,98 @@ format_ip46_address (u8 * s, va_list * args) * VPPCOM Utility Functions */ -static inline void -vppcom_session_table_del_listener (u64 listener_handle) +static void +vcl_send_session_listen (vcl_worker_t * wrk, vcl_session_t * s) { - listener_handle |= 1ULL << 63; - hash_unset (vcm->session_index_by_vpp_handles, listener_handle); + app_session_evt_t _app_evt, *app_evt = &_app_evt; + session_listen_msg_t *mp; + svm_msg_q_t *mq; + + mq = vcl_worker_ctrl_mq (wrk); + app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_LISTEN); + mp = (session_listen_msg_t *) app_evt->evt->data; + memset (mp, 0, sizeof (*mp)); + mp->client_index = wrk->my_client_index; + mp->context = s->session_index; + mp->wrk_index = wrk->vpp_wrk_index; + mp->is_ip4 = s->transport.is_ip4; + clib_memcpy_fast (&mp->ip, &s->transport.lcl_ip, sizeof (mp->ip)); + mp->port = s->transport.lcl_port; + mp->proto = s->session_type; + app_send_ctrl_evt_to_vpp (mq, app_evt); } -static inline int -vppcom_wait_for_app_state_change (app_state_t app_state) +static void +vcl_send_session_connect (vcl_worker_t * wrk, vcl_session_t * s) { - f64 timeout = clib_time_now (&vcm->clib_time) + vcm->cfg.app_timeout; + app_session_evt_t _app_evt, *app_evt = &_app_evt; + session_connect_msg_t *mp; + svm_msg_q_t *mq; - while (clib_time_now (&vcm->clib_time) < timeout) - { - if (vcm->app_state == app_state) - return VPPCOM_OK; - } - VDBG (0, "VCL<%d>: timeout waiting for state %s (%d)", getpid (), - vppcom_app_state_str (app_state), app_state); - vcl_evt (VCL_EVT_SESSION_TIMEOUT, vcm, app_state); + mq = vcl_worker_ctrl_mq (wrk); + app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_CONNECT); + mp = (session_connect_msg_t *) app_evt->evt->data; + memset (mp, 0, sizeof (*mp)); + mp->client_index = wrk->my_client_index; + mp->context = s->session_index; + mp->wrk_index = wrk->vpp_wrk_index; + mp->is_ip4 = s->transport.is_ip4; + mp->parent_handle = s->parent_handle; + clib_memcpy_fast (&mp->ip, &s->transport.rmt_ip, sizeof (mp->ip)); + clib_memcpy_fast (&mp->lcl_ip, &s->transport.lcl_ip, sizeof (mp->lcl_ip)); + mp->port = s->transport.rmt_port; + mp->proto = s->session_type; + app_send_ctrl_evt_to_vpp (mq, app_evt); +} - return VPPCOM_ETIMEDOUT; +void +vcl_send_session_unlisten (vcl_worker_t * wrk, vcl_session_t * s) +{ + app_session_evt_t _app_evt, *app_evt = &_app_evt; + session_unlisten_msg_t *mp; + svm_msg_q_t *mq; + + mq = vcl_worker_ctrl_mq (wrk); + app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_UNLISTEN); + mp = (session_unlisten_msg_t *) app_evt->evt->data; + memset (mp, 0, sizeof (*mp)); + mp->client_index = wrk->my_client_index; + mp->wrk_index = wrk->vpp_wrk_index; + mp->handle = s->vpp_handle; + mp->context = wrk->wrk_index; + app_send_ctrl_evt_to_vpp (mq, app_evt); } -static svm_msg_q_t * -vcl_session_vpp_evt_q (vcl_session_t * s) +static void +vcl_send_session_disconnect (vcl_worker_t * wrk, vcl_session_t * s) { - if (vcl_session_is_ct (s)) - return vcm->vpp_event_queues[0]; - else - return vcm->vpp_event_queues[s->tx_fifo->master_thread_index]; + app_session_evt_t _app_evt, *app_evt = &_app_evt; + session_disconnect_msg_t *mp; + svm_msg_q_t *mq; + + /* Send to thread that owns the session */ + mq = s->vpp_evt_q; + app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_DISCONNECT); + mp = (session_disconnect_msg_t *) app_evt->evt->data; + memset (mp, 0, sizeof (*mp)); + mp->client_index = wrk->my_client_index; + mp->handle = s->vpp_handle; + app_send_ctrl_evt_to_vpp (mq, app_evt); +} + +static void +vcl_send_app_detach (vcl_worker_t * wrk) +{ + app_session_evt_t _app_evt, *app_evt = &_app_evt; + session_app_detach_msg_t *mp; + svm_msg_q_t *mq; + + mq = vcl_worker_ctrl_mq (wrk); + app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_APP_DETACH); + mp = (session_app_detach_msg_t *) app_evt->evt->data; + memset (mp, 0, sizeof (*mp)); + mp->client_index = wrk->my_client_index; + app_send_ctrl_evt_to_vpp (mq, app_evt); } static void @@ -300,213 +328,268 @@ vcl_send_session_reset_reply (svm_msg_q_t * mq, u32 context, app_send_ctrl_evt_to_vpp (mq, app_evt); } +void +vcl_send_session_worker_update (vcl_worker_t * wrk, vcl_session_t * s, + u32 wrk_index) +{ + app_session_evt_t _app_evt, *app_evt = &_app_evt; + session_worker_update_msg_t *mp; + svm_msg_q_t *mq; + + mq = vcl_session_vpp_evt_q (wrk, s); + app_alloc_ctrl_evt_to_vpp (mq, app_evt, SESSION_CTRL_EVT_WORKER_UPDATE); + mp = (session_worker_update_msg_t *) app_evt->evt->data; + mp->client_index = wrk->my_client_index; + mp->handle = s->vpp_handle; + mp->req_wrk_index = wrk->vpp_wrk_index; + mp->wrk_index = wrk_index; + app_send_ctrl_evt_to_vpp (mq, app_evt); +} + static u32 -vcl_session_accepted_handler (session_accepted_msg_t * mp) +vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp, + u32 ls_index) { vcl_session_t *session, *listen_session; svm_fifo_t *rx_fifo, *tx_fifo; - u32 session_index, vpp_wrk_index; + u32 vpp_wrk_index; svm_msg_q_t *evt_q; - session = vcl_session_alloc (); - session_index = vcl_session_index (session); + session = vcl_session_alloc (wrk); - listen_session = vppcom_session_table_lookup_listener (mp->listener_handle); - if (!listen_session) + listen_session = vcl_session_get (wrk, ls_index); + if (listen_session->vpp_handle != mp->listener_handle) { - svm_msg_q_t *evt_q; - evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *); - clib_warning ("VCL<%d>: ERROR: couldn't find listen session: " - "unknown vpp listener handle %llx", - getpid (), mp->listener_handle); - vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle, - VNET_API_ERROR_INVALID_ARGUMENT); - vcl_session_free (session); - return VCL_INVALID_SESSION_INDEX; + VDBG (0, "ERROR: listener handle %lu does not match session %u", + mp->listener_handle, ls_index); + goto error; } - rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); - tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); - - if (mp->server_event_queue_address) + if (vcl_segment_is_not_mounted (wrk, mp->segment_handle)) { - session->vpp_evt_q = uword_to_pointer (mp->client_event_queue_address, - svm_msg_q_t *); - session->our_evt_q = uword_to_pointer (mp->server_event_queue_address, - svm_msg_q_t *); - vcl_wait_for_memory (session->vpp_evt_q); - rx_fifo->master_session_index = session_index; - tx_fifo->master_session_index = session_index; - vec_validate (vcm->vpp_event_queues, 0); - evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *); - vcm->vpp_event_queues[0] = evt_q; + VDBG (0, "ERROR: segment for session %u is not mounted!", + session->session_index); + goto error; } - else - { - session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address, - svm_msg_q_t *); - rx_fifo->client_session_index = session_index; - tx_fifo->client_session_index = session_index; - vpp_wrk_index = tx_fifo->master_thread_index; - vec_validate (vcm->vpp_event_queues, vpp_wrk_index); - vcm->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q; - } + rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); + tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); + session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address, + svm_msg_q_t *); + rx_fifo->client_session_index = session->session_index; + tx_fifo->client_session_index = session->session_index; + rx_fifo->client_thread_index = vcl_get_worker_index (); + tx_fifo->client_thread_index = vcl_get_worker_index (); + vpp_wrk_index = tx_fifo->master_thread_index; + vec_validate (wrk->vpp_event_queues, vpp_wrk_index); + wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q; session->vpp_handle = mp->handle; - session->client_context = mp->context; + session->vpp_thread_index = rx_fifo->master_thread_index; session->rx_fifo = rx_fifo; session->tx_fifo = tx_fifo; session->session_state = STATE_ACCEPT; - session->transport.rmt_port = mp->port; - session->transport.is_ip4 = mp->is_ip4; - clib_memcpy (&session->transport.rmt_ip, mp->ip, sizeof (ip46_address_t)); + session->transport.rmt_port = mp->rmt.port; + session->transport.is_ip4 = mp->rmt.is_ip4; + clib_memcpy_fast (&session->transport.rmt_ip, &mp->rmt.ip, + sizeof (ip46_address_t)); - hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index); + vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index); session->transport.lcl_port = listen_session->transport.lcl_port; session->transport.lcl_ip = listen_session->transport.lcl_ip; session->session_type = listen_session->session_type; - session->is_dgram = session->session_type == VPPCOM_PROTO_UDP; - - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: client accept request from %s" - " address %U port %d queue %p!", getpid (), mp->handle, session_index, - mp->is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->ip, - mp->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, - clib_net_to_host_u16 (mp->port), session->vpp_evt_q); + session->is_dgram = vcl_proto_is_dgram (session->session_type); + session->listener_index = listen_session->session_index; + listen_session->n_accepted_sessions++; + + VDBG (1, "session %u [0x%llx]: client accept request from %s address %U" + " port %d queue %p!", session->session_index, mp->handle, + mp->rmt.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &mp->rmt.ip, + mp->rmt.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (mp->rmt.port), session->vpp_evt_q); vcl_evt (VCL_EVT_ACCEPT, session, listen_session, session_index); - return session_index; + vcl_send_session_accepted_reply (session->vpp_evt_q, mp->context, + session->vpp_handle, 0); + + return session->session_index; + +error: + evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *); + vcl_send_session_accepted_reply (evt_q, mp->context, mp->handle, + VNET_API_ERROR_INVALID_ARGUMENT); + vcl_session_free (wrk, session); + return VCL_INVALID_SESSION_INDEX; } static u32 -vcl_session_connected_handler (session_connected_msg_t * mp) +vcl_session_connected_handler (vcl_worker_t * wrk, + session_connected_msg_t * mp) { u32 session_index, vpp_wrk_index; svm_fifo_t *rx_fifo, *tx_fifo; vcl_session_t *session = 0; - svm_msg_q_t *evt_q; session_index = mp->context; - session = vcl_session_get (session_index); + session = vcl_session_get (wrk, session_index); if (!session) { - clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: " - "Invalid session index (%u)!", - getpid (), mp->handle, session_index); + VDBG (0, "ERROR: vpp handle 0x%llx has no session index (%u)!", + mp->handle, session_index); return VCL_INVALID_SESSION_INDEX; } if (mp->retval) { - clib_warning ("VCL<%d>: ERROR: sid %u: connect failed! %U", getpid (), - mp->handle, session_index, format_api_error, - ntohl (mp->retval)); - session->session_state = STATE_FAILED; + VDBG (0, "ERROR: session index %u: connect failed! %U", + session_index, format_api_error, ntohl (mp->retval)); + session->session_state = STATE_DETACHED | STATE_DISCONNECT; session->vpp_handle = mp->handle; return session_index; } + session->vpp_handle = mp->handle; + session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address, + svm_msg_q_t *); rx_fifo = uword_to_pointer (mp->server_rx_fifo, svm_fifo_t *); tx_fifo = uword_to_pointer (mp->server_tx_fifo, svm_fifo_t *); - vcl_wait_for_memory (rx_fifo); + if (vcl_segment_is_not_mounted (wrk, mp->segment_handle)) + { + VDBG (0, "segment for session %u is not mounted!", + session->session_index); + session->session_state = STATE_DETACHED | STATE_DISCONNECT; + vcl_send_session_disconnect (wrk, session); + return session_index; + } + rx_fifo->client_session_index = session_index; tx_fifo->client_session_index = session_index; + rx_fifo->client_thread_index = vcl_get_worker_index (); + tx_fifo->client_thread_index = vcl_get_worker_index (); - if (mp->client_event_queue_address) - { - session->vpp_evt_q = uword_to_pointer (mp->server_event_queue_address, - svm_msg_q_t *); - session->our_evt_q = uword_to_pointer (mp->client_event_queue_address, - svm_msg_q_t *); + vpp_wrk_index = tx_fifo->master_thread_index; + vec_validate (wrk->vpp_event_queues, vpp_wrk_index); + wrk->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q; - vec_validate (vcm->vpp_event_queues, 0); - evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *); - vcm->vpp_event_queues[0] = evt_q; - } - else + if (mp->ct_rx_fifo) { - session->vpp_evt_q = uword_to_pointer (mp->vpp_event_queue_address, - svm_msg_q_t *); - vpp_wrk_index = tx_fifo->master_thread_index; - vec_validate (vcm->vpp_event_queues, vpp_wrk_index); - vcm->vpp_event_queues[vpp_wrk_index] = session->vpp_evt_q; + session->ct_rx_fifo = uword_to_pointer (mp->ct_rx_fifo, svm_fifo_t *); + session->ct_tx_fifo = uword_to_pointer (mp->ct_tx_fifo, svm_fifo_t *); + if (vcl_segment_is_not_mounted (wrk, mp->ct_segment_handle)) + { + VDBG (0, "ct segment for session %u is not mounted!", + session->session_index); + session->session_state = STATE_DETACHED | STATE_DISCONNECT; + vcl_send_session_disconnect (wrk, session); + return session_index; + } } session->rx_fifo = rx_fifo; session->tx_fifo = tx_fifo; - session->vpp_handle = mp->handle; - session->transport.is_ip4 = mp->is_ip4; - clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip, - sizeof (session->transport.lcl_ip)); - session->transport.lcl_port = mp->lcl_port; + session->vpp_thread_index = rx_fifo->master_thread_index; + session->transport.is_ip4 = mp->lcl.is_ip4; + clib_memcpy_fast (&session->transport.lcl_ip, &mp->lcl.ip, + sizeof (session->transport.lcl_ip)); + session->transport.lcl_port = mp->lcl.port; session->session_state = STATE_CONNECT; /* Add it to lookup table */ - hash_set (vcm->session_index_by_vpp_handles, mp->handle, session_index); + vcl_session_table_add_vpp_handle (wrk, mp->handle, session_index); - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: connect succeeded! " - "session_rx_fifo %p, refcnt %d, session_tx_fifo %p, refcnt %d", - getpid (), mp->handle, session_index, session->rx_fifo, + VDBG (1, "session %u [0x%llx] connected! rx_fifo %p, refcnt %d, tx_fifo %p," + " refcnt %d", session_index, mp->handle, session->rx_fifo, session->rx_fifo->refcnt, session->tx_fifo, session->tx_fifo->refcnt); return session_index; } +static int +vcl_flag_accepted_session (vcl_session_t * session, u64 handle, u32 flags) +{ + vcl_session_msg_t *accepted_msg; + int i; + + for (i = 0; i < vec_len (session->accept_evts_fifo); i++) + { + accepted_msg = &session->accept_evts_fifo[i]; + if (accepted_msg->accepted_msg.handle == handle) + { + accepted_msg->flags |= flags; + return 1; + } + } + return 0; +} + static u32 -vcl_session_reset_handler (session_reset_msg_t * reset_msg) +vcl_session_reset_handler (vcl_worker_t * wrk, + session_reset_msg_t * reset_msg) { vcl_session_t *session; u32 sid; - sid = vcl_session_get_index_from_handle (reset_msg->handle); - session = vcl_session_get (sid); + sid = vcl_session_index_from_vpp_handle (wrk, reset_msg->handle); + session = vcl_session_get (wrk, sid); if (!session) { VDBG (0, "request to reset unknown handle 0x%llx", reset_msg->handle); return VCL_INVALID_SESSION_INDEX; } - session->session_state = STATE_CLOSE_ON_EMPTY; - VDBG (0, "reset handle 0x%llx, sid %u ", reset_msg->handle, sid); - vcl_send_session_reset_reply (vcl_session_vpp_evt_q (session), - vcm->my_client_index, reset_msg->handle, 0); + + /* Caught a reset before actually accepting the session */ + if (session->session_state == STATE_LISTEN) + { + + if (!vcl_flag_accepted_session (session, reset_msg->handle, + VCL_ACCEPTED_F_RESET)) + VDBG (0, "session was not accepted!"); + return VCL_INVALID_SESSION_INDEX; + } + + session->session_state = STATE_DISCONNECT; + VDBG (0, "reset session %u [0x%llx]", sid, reset_msg->handle); return sid; } static u32 -vcl_session_bound_handler (session_bound_msg_t * mp) +vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp) { vcl_session_t *session; u32 sid = mp->context; - session = vcl_session_get (sid); + session = vcl_session_get (wrk, sid); if (mp->retval) { - VDBG (0, "VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: bind failed: %U", - getpid (), mp->handle, sid, format_api_error, ntohl (mp->retval)); + VERR ("session %u [0x%llx]: bind failed: %U", sid, mp->handle, + format_api_error, mp->retval); if (session) { - session->session_state = STATE_FAILED; + session->session_state = STATE_DETACHED; session->vpp_handle = mp->handle; return sid; } else { - clib_warning ("[%s] ERROR: vpp handle 0x%llx, sid %u: " - "Invalid session index (%u)!", - getpid (), mp->handle, sid); + VDBG (0, "ERROR: session %u [0x%llx]: Invalid session index!", + sid, mp->handle); return VCL_INVALID_SESSION_INDEX; } } session->vpp_handle = mp->handle; session->transport.is_ip4 = mp->lcl_is_ip4; - clib_memcpy (&session->transport.lcl_ip, mp->lcl_ip, - sizeof (ip46_address_t)); + clib_memcpy_fast (&session->transport.lcl_ip, mp->lcl_ip, + sizeof (ip46_address_t)); session->transport.lcl_port = mp->lcl_port; - vppcom_session_table_add_listener (mp->handle, sid); + vcl_session_table_add_listener (wrk, mp->handle, sid); session->session_state = STATE_LISTEN; - if (session->is_dgram) + session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *); + vec_validate (wrk->vpp_event_queues, 0); + wrk->vpp_event_queues[0] = session->vpp_evt_q; + + if (vcl_session_is_cl (session)) { svm_fifo_t *rx_fifo, *tx_fifo; session->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *); @@ -518,327 +601,644 @@ vcl_session_bound_handler (session_bound_msg_t * mp) session->tx_fifo = tx_fifo; } - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: bind succeeded!", - getpid (), mp->handle, sid); + VDBG (0, "session %u [0x%llx]: listen succeeded!", sid, mp->handle); return sid; } -int -vcl_handle_mq_ctrl_event (session_event_t * e) +static void +vcl_session_unlisten_reply_handler (vcl_worker_t * wrk, void *data) { - session_accepted_msg_t *accepted_msg; - session_disconnected_msg_t *disconnected_msg; - vcl_session_msg_t *vcl_msg; - vcl_session_t *session; - u64 handle; - u32 sid; + session_unlisten_reply_msg_t *mp = (session_unlisten_reply_msg_t *) data; + vcl_session_t *s; - switch (e->event_type) + s = vcl_session_get_w_vpp_handle (wrk, mp->handle); + if (!s || s->session_state != STATE_DISCONNECT) { - case FIFO_EVENT_APP_RX: - clib_warning ("unhandled rx: sid %u (0x%x)", - e->fifo->client_session_index, - e->fifo->client_session_index); - break; - case SESSION_CTRL_EVT_ACCEPTED: - accepted_msg = (session_accepted_msg_t *) e->data; - handle = accepted_msg->listener_handle; - session = vppcom_session_table_lookup_listener (handle); - if (!session) - { - clib_warning ("VCL<%d>: ERROR: couldn't find listen session:" - "listener handle %llx", getpid (), handle); - break; - } - - clib_fifo_add2 (session->accept_evts_fifo, vcl_msg); - vcl_msg->accepted_msg = *accepted_msg; - break; - case SESSION_CTRL_EVT_CONNECTED: - vcl_session_connected_handler ((session_connected_msg_t *) e->data); - break; - case SESSION_CTRL_EVT_DISCONNECTED: - disconnected_msg = (session_disconnected_msg_t *) e->data; - sid = vcl_session_get_index_from_handle (disconnected_msg->handle); - session = vcl_session_get (sid); - if (!session) - { - VDBG (0, "request to disconnect unknown handle 0x%llx", - disconnected_msg->handle); - break; - } - session->session_state = STATE_DISCONNECT; - VDBG (0, "disconnected handle 0xllx, sid %u", disconnected_msg->handle, - sid); - break; - case SESSION_CTRL_EVT_RESET: - vcl_session_reset_handler ((session_reset_msg_t *) e->data); - break; - case SESSION_CTRL_EVT_BOUND: - vcl_session_bound_handler ((session_bound_msg_t *) e->data); - break; - default: - clib_warning ("unhandled %u", e->event_type); + VDBG (0, "Unlisten reply with wrong handle %llx", mp->handle); + return; } - return VPPCOM_OK; + + if (mp->retval) + VDBG (0, "ERROR: session %u [0xllx]: unlisten failed: %U", + s->session_index, mp->handle, format_api_error, ntohl (mp->retval)); + + if (mp->context != wrk->wrk_index) + VDBG (0, "wrong context"); + + vcl_session_table_del_vpp_handle (wrk, mp->handle); + vcl_session_free (wrk, s); } -static inline int -vppcom_wait_for_session_state_change (u32 session_index, - session_state_t state, - f64 wait_for_time) +static void +vcl_session_migrated_handler (vcl_worker_t * wrk, void *data) { - f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time; - vcl_session_t *volatile session; - svm_msg_q_msg_t msg; - session_event_t *e; + session_migrated_msg_t *mp = (session_migrated_msg_t *) data; + vcl_session_t *s; - do + s = vcl_session_get_w_vpp_handle (wrk, mp->handle); + if (!s) { - session = vcl_session_get (session_index); - if (PREDICT_FALSE (!session)) - { - return VPPCOM_EBADFD; - } - if (session->session_state & state) - { - return VPPCOM_OK; - } - if (session->session_state & STATE_FAILED) - { - return VPPCOM_ECONNREFUSED; - } - - if (svm_msg_q_sub (vcm->app_event_queue, &msg, SVM_Q_NOWAIT, 0)) - continue; - e = svm_msg_q_msg_data (vcm->app_event_queue, &msg); - vcl_handle_mq_ctrl_event (e); - svm_msg_q_free_msg (vcm->app_event_queue, &msg); + VDBG (0, "Migrated notification with wrong handle %llx", mp->handle); + return; } - while (clib_time_now (&vcm->clib_time) < timeout); - VDBG (0, "VCL<%d>: timeout waiting for state 0x%x (%s)", getpid (), state, - vppcom_session_state_str (state)); - vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state); + s->vpp_thread_index = mp->vpp_thread_index; + s->vpp_evt_q = uword_to_pointer (mp->vpp_evt_q, svm_msg_q_t *); - return VPPCOM_ETIMEDOUT; -} + vec_validate (wrk->vpp_event_queues, s->vpp_thread_index); + wrk->vpp_event_queues[s->vpp_thread_index] = s->vpp_evt_q; -static int -vppcom_app_session_enable (void) -{ - int rv; + vcl_session_table_del_vpp_handle (wrk, mp->handle); + vcl_session_table_add_vpp_handle (wrk, mp->new_handle, s->session_index); - if (vcm->app_state != STATE_APP_ENABLED) - { - vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ ); - rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED); - if (PREDICT_FALSE (rv)) - { - VDBG (0, "VCL<%d>: application session enable timed out! " - "returning %d (%s)", getpid (), rv, vppcom_retval_str (rv)); - return rv; - } - } - return VPPCOM_OK; + /* Generate new tx event if we have outstanding data */ + if (svm_fifo_has_event (s->tx_fifo)) + app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index, + SESSION_IO_EVT_TX, SVM_Q_WAIT); + + VDBG (0, "Migrated 0x%x to thread %u", mp->handle, s->vpp_thread_index); } -static int -vppcom_app_attach (void) +static vcl_session_t * +vcl_session_accepted (vcl_worker_t * wrk, session_accepted_msg_t * msg) { - int rv; + vcl_session_msg_t *vcl_msg; + vcl_session_t *session; - vppcom_app_send_attach (); - rv = vppcom_wait_for_app_state_change (STATE_APP_ATTACHED); - if (PREDICT_FALSE (rv)) + session = vcl_session_get_w_vpp_handle (wrk, msg->handle); + if (PREDICT_FALSE (session != 0)) + VWRN ("session overlap handle %lu state %u!", msg->handle, + session->session_state); + + session = vcl_session_table_lookup_listener (wrk, msg->listener_handle); + if (!session) { - VDBG (0, "VCL<%d>: application attach timed out! returning %d (%s)", - getpid (), rv, vppcom_retval_str (rv)); - return rv; + VERR ("couldn't find listen session: listener handle %llx", + msg->listener_handle); + return 0; } - return VPPCOM_OK; + clib_fifo_add2 (session->accept_evts_fifo, vcl_msg); + vcl_msg->flags = 0; + vcl_msg->accepted_msg = *msg; + /* Session handle points to listener until fully accepted by app */ + vcl_session_table_add_vpp_handle (wrk, msg->handle, session->session_index); + + return session; } -static int -vppcom_session_unbind (u32 session_index) +static vcl_session_t * +vcl_session_disconnected_handler (vcl_worker_t * wrk, + session_disconnected_msg_t * msg) { - vcl_session_t *session = 0; - u64 vpp_handle; + vcl_session_t *session; - session = vcl_session_get (session_index); + session = vcl_session_get_w_vpp_handle (wrk, msg->handle); if (!session) - return VPPCOM_EBADFD; + { + VDBG (0, "request to disconnect unknown handle 0x%llx", msg->handle); + return 0; + } - vpp_handle = session->vpp_handle; - vppcom_session_table_del_listener (vpp_handle); - session->vpp_handle = ~0; - session->session_state = STATE_DISCONNECT; + /* Late disconnect notification on a session that has been closed */ + if (session->session_state == STATE_CLOSED) + return 0; - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending unbind msg! new state" - " 0x%x (%s)", getpid (), vpp_handle, session_index, STATE_DISCONNECT, - vppcom_session_state_str (STATE_DISCONNECT)); - vcl_evt (VCL_EVT_UNBIND, session); - vppcom_send_unbind_sock (vpp_handle); + /* Caught a disconnect before actually accepting the session */ + if (session->session_state == STATE_LISTEN) + { + if (!vcl_flag_accepted_session (session, msg->handle, + VCL_ACCEPTED_F_CLOSED)) + VDBG (0, "session was not accepted!"); + return 0; + } - return VPPCOM_OK; + /* If not already reset change state */ + if (session->session_state != STATE_DISCONNECT) + session->session_state = STATE_VPP_CLOSING; + + return session; } -static int -vppcom_session_disconnect (u32 session_index) +static void +vcl_session_cleanup_handler (vcl_worker_t * wrk, void *data) { - svm_msg_q_t *vpp_evt_q; + session_cleanup_msg_t *msg; vcl_session_t *session; - session_state_t state; - u64 vpp_handle; - - session = vcl_session_get (session_index); - vpp_handle = session->vpp_handle; - state = session->session_state; - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (), - vpp_handle, session_index, state, vppcom_session_state_str (state)); - - if (PREDICT_FALSE (state & STATE_LISTEN)) + msg = (session_cleanup_msg_t *) data; + session = vcl_session_get_w_vpp_handle (wrk, msg->handle); + if (!session) { - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "Cannot disconnect a listen socket!", - getpid (), vpp_handle, session_index); - return VPPCOM_EBADFD; + VDBG (0, "disconnect confirmed for unknown handle 0x%llx", msg->handle); + return; } - if (state & STATE_CLOSE_ON_EMPTY) + vcl_session_table_del_vpp_handle (wrk, msg->handle); + /* Should not happen. App did not close the connection so don't free it. */ + if (session->session_state != STATE_CLOSED) { - vpp_evt_q = vcl_session_vpp_evt_q (session); - vcl_send_session_disconnected_reply (vpp_evt_q, vcm->my_client_index, - vpp_handle, 0); - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect " - "REPLY...", getpid (), vpp_handle, session_index); + VDBG (0, "app did not close session %d", session->session_index); + session->session_state = STATE_DETACHED; + session->vpp_handle = VCL_INVALID_SESSION_HANDLE; + return; } - else + vcl_session_free (wrk, session); +} + +static void +vcl_session_req_worker_update_handler (vcl_worker_t * wrk, void *data) +{ + session_req_worker_update_msg_t *msg; + vcl_session_t *s; + + msg = (session_req_worker_update_msg_t *) data; + s = vcl_session_get_w_vpp_handle (wrk, msg->session_handle); + if (!s) + return; + + vec_add1 (wrk->pending_session_wrk_updates, s->session_index); +} + +static void +vcl_session_worker_update_reply_handler (vcl_worker_t * wrk, void *data) +{ + session_worker_update_reply_msg_t *msg; + vcl_session_t *s; + + msg = (session_worker_update_reply_msg_t *) data; + s = vcl_session_get_w_vpp_handle (wrk, msg->handle); + if (!s) + { + VDBG (0, "unknown handle 0x%llx", msg->handle); + return; + } + if (vcl_segment_is_not_mounted (wrk, msg->segment_handle)) + { + clib_warning ("segment for session %u is not mounted!", + s->session_index); + return; + } + + if (s->rx_fifo) { - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect...", - getpid (), vpp_handle, session_index); - vppcom_send_disconnect_session (vpp_handle, session_index); + s->rx_fifo = uword_to_pointer (msg->rx_fifo, svm_fifo_t *); + s->tx_fifo = uword_to_pointer (msg->tx_fifo, svm_fifo_t *); + s->rx_fifo->client_session_index = s->session_index; + s->tx_fifo->client_session_index = s->session_index; + s->rx_fifo->client_thread_index = wrk->wrk_index; + s->tx_fifo->client_thread_index = wrk->wrk_index; } + s->session_state = STATE_UPDATED; - return VPPCOM_OK; + VDBG (0, "session %u[0x%llx] moved to worker %u", s->session_index, + s->vpp_handle, wrk->wrk_index); } -/* - * VPPCOM Public API functions - */ -int -vppcom_app_create (char *app_name) +static void +vcl_session_app_add_segment_handler (vcl_worker_t * wrk, void *data) { - vppcom_cfg_t *vcl_cfg = &vcm->cfg; - int rv; + ssvm_segment_type_t seg_type = SSVM_SEGMENT_SHM; + session_app_add_segment_msg_t *msg; + u64 segment_handle; + int fd = -1; + + msg = (session_app_add_segment_msg_t *) data; + + if (msg->fd_flags) + { + vl_socket_client_recv_fd_msg2 (&wrk->bapi_sock_ctx, &fd, 1, 5); + seg_type = SSVM_SEGMENT_MEMFD; + } + + segment_handle = msg->segment_handle; + if (segment_handle == VCL_INVALID_SEGMENT_HANDLE) + { + clib_warning ("invalid segment handle"); + return; + } - if (!vcm->init) + if (vcl_segment_attach (segment_handle, (char *) msg->segment_name, + seg_type, fd)) { - vcm->init = 1; - vppcom_cfg (&vcm->cfg); - vcl_cfg = &vcm->cfg; + VDBG (0, "vcl_segment_attach ('%s') failed", msg->segment_name); + return; + } - vcm->mqs_epfd = -1; - if (vcl_cfg->use_mq_eventfd) - vcm->mqs_epfd = epoll_create (1); + VDBG (1, "mapped new segment '%s' size %d", msg->segment_name, + msg->segment_size); +} + +static void +vcl_session_app_del_segment_handler (vcl_worker_t * wrk, void *data) +{ + session_app_del_segment_msg_t *msg = (session_app_del_segment_msg_t *) data; + vcl_segment_detach (msg->segment_handle); + VDBG (1, "Unmapped segment: %d", msg->segment_handle); +} - vcm->main_cpu = os_get_thread_index (); - vcm->session_index_by_vpp_handles = hash_create (0, sizeof (uword)); - vcm->ct_registration_by_mq = hash_create (0, sizeof (uword)); - clib_spinlock_init (&vcm->ct_registration_lock); +static int +vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e) +{ + session_disconnected_msg_t *disconnected_msg; + vcl_session_t *session; - clib_time_init (&vcm->clib_time); - vppcom_init_error_string_table (); - svm_fifo_segment_main_init (vcl_cfg->segment_baseva, - 20 /* timeout in secs */ ); - vec_validate (vcm->mq_events, 64); - vec_validate (vcm->mq_msg_vector, 128); - vec_reset_length (vcm->mq_msg_vector); + switch (e->event_type) + { + case SESSION_IO_EVT_RX: + case SESSION_IO_EVT_TX: + session = vcl_session_get (wrk, e->session_index); + if (!session || !(session->session_state & STATE_OPEN)) + break; + vec_add1 (wrk->unhandled_evts_vector, *e); + break; + case SESSION_CTRL_EVT_ACCEPTED: + vcl_session_accepted (wrk, (session_accepted_msg_t *) e->data); + break; + case SESSION_CTRL_EVT_CONNECTED: + vcl_session_connected_handler (wrk, + (session_connected_msg_t *) e->data); + break; + case SESSION_CTRL_EVT_DISCONNECTED: + disconnected_msg = (session_disconnected_msg_t *) e->data; + session = vcl_session_disconnected_handler (wrk, disconnected_msg); + if (!session) + break; + VDBG (0, "disconnected session %u [0x%llx]", session->session_index, + session->vpp_handle); + break; + case SESSION_CTRL_EVT_RESET: + vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data); + break; + case SESSION_CTRL_EVT_BOUND: + vcl_session_bound_handler (wrk, (session_bound_msg_t *) e->data); + break; + case SESSION_CTRL_EVT_UNLISTEN_REPLY: + vcl_session_unlisten_reply_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_MIGRATED: + vcl_session_migrated_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_CLEANUP: + vcl_session_cleanup_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_REQ_WORKER_UPDATE: + vcl_session_req_worker_update_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY: + vcl_session_worker_update_reply_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_APP_ADD_SEGMENT: + vcl_session_app_add_segment_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_APP_DEL_SEGMENT: + vcl_session_app_del_segment_handler (wrk, e->data); + break; + default: + clib_warning ("unhandled %u", e->event_type); } + return VPPCOM_OK; +} + +static int +vppcom_wait_for_session_state_change (u32 session_index, + vcl_session_state_t state, + f64 wait_for_time) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time; + vcl_session_t *volatile session; + svm_msg_q_msg_t msg; + session_event_t *e; - if (vcm->my_client_index == ~0) + do { - /* API hookup and connect to VPP */ - vppcom_api_hookup (); - vcl_elog_init (vcm); - vcm->app_state = STATE_APP_START; - rv = vppcom_connect_to_vpp (app_name); - if (rv) + session = vcl_session_get (wrk, session_index); + if (PREDICT_FALSE (!session)) { - clib_warning ("VCL<%d>: ERROR: couldn't connect to VPP!", - getpid ()); - return rv; + return VPPCOM_EBADFD; + } + if (session->session_state & state) + { + return VPPCOM_OK; + } + if (session->session_state & STATE_DETACHED) + { + return VPPCOM_ECONNREFUSED; } - VDBG (0, "VCL<%d>: sending session enable", getpid ()); - rv = vppcom_app_session_enable (); - if (rv) + if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0)) { - clib_warning ("VCL<%d>: ERROR: vppcom_app_session_enable() " - "failed!", getpid ()); - return rv; + usleep (100); + continue; } + e = svm_msg_q_msg_data (wrk->app_event_queue, &msg); + vcl_handle_mq_event (wrk, e); + svm_msg_q_free_msg (wrk->app_event_queue, &msg); + } + while (clib_time_now (&wrk->clib_time) < timeout); + + VDBG (0, "timeout waiting for state 0x%x (%s)", state, + vppcom_session_state_str (state)); + vcl_evt (VCL_EVT_SESSION_TIMEOUT, session, session_state); - VDBG (0, "VCL<%d>: sending app attach", getpid ()); - rv = vppcom_app_attach (); - if (rv) + return VPPCOM_ETIMEDOUT; +} + +static void +vcl_handle_pending_wrk_updates (vcl_worker_t * wrk) +{ + vcl_session_state_t state; + vcl_session_t *s; + u32 *sip; + + if (PREDICT_TRUE (vec_len (wrk->pending_session_wrk_updates) == 0)) + return; + + vec_foreach (sip, wrk->pending_session_wrk_updates) + { + s = vcl_session_get (wrk, *sip); + vcl_send_session_worker_update (wrk, s, wrk->wrk_index); + state = s->session_state; + vppcom_wait_for_session_state_change (s->session_index, STATE_UPDATED, 5); + s->session_state = state; + } + vec_reset_length (wrk->pending_session_wrk_updates); +} + +void +vcl_flush_mq_events (void) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + svm_msg_q_msg_t *msg; + session_event_t *e; + svm_msg_q_t *mq; + int i; + + mq = wrk->app_event_queue; + svm_msg_q_lock (mq); + vcl_mq_dequeue_batch (wrk, mq, ~0); + svm_msg_q_unlock (mq); + + for (i = 0; i < vec_len (wrk->mq_msg_vector); i++) + { + msg = vec_elt_at_index (wrk->mq_msg_vector, i); + e = svm_msg_q_msg_data (mq, msg); + vcl_handle_mq_event (wrk, e); + svm_msg_q_free_msg (mq, msg); + } + vec_reset_length (wrk->mq_msg_vector); + vcl_handle_pending_wrk_updates (wrk); +} + +static int +vppcom_app_session_enable (void) +{ + int rv; + + if (vcm->app_state != STATE_APP_ENABLED) + { + vppcom_send_session_enable_disable (1 /* is_enabled == TRUE */ ); + rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED); + if (PREDICT_FALSE (rv)) { - clib_warning ("VCL<%d>: ERROR: vppcom_app_attach() failed!", - getpid ()); + VDBG (0, "application session enable timed out! returning %d (%s)", + rv, vppcom_retval_str (rv)); return rv; } + } + return VPPCOM_OK; +} + +static int +vppcom_app_attach (void) +{ + int rv; + + vppcom_app_send_attach (); + rv = vcl_wait_for_app_state_change (STATE_APP_ATTACHED); + if (PREDICT_FALSE (rv)) + { + VDBG (0, "application attach timed out! returning %d (%s)", rv, + vppcom_retval_str (rv)); + return rv; + } + + return VPPCOM_OK; +} + +static int +vppcom_session_unbind (u32 session_handle) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + session_accepted_msg_t *accepted_msg; + vcl_session_t *session = 0; + vcl_session_msg_t *evt; + + session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + + /* Flush pending accept events, if any */ + while (clib_fifo_elts (session->accept_evts_fifo)) + { + clib_fifo_sub2 (session->accept_evts_fifo, evt); + accepted_msg = &evt->accepted_msg; + vcl_session_table_del_vpp_handle (wrk, accepted_msg->handle); + vcl_send_session_accepted_reply (session->vpp_evt_q, + accepted_msg->context, + session->vpp_handle, -1); + } + clib_fifo_free (session->accept_evts_fifo); + + vcl_send_session_unlisten (wrk, session); + + VDBG (1, "session %u [0x%llx]: sending unbind!", session->session_index, + session->vpp_handle); + vcl_evt (VCL_EVT_UNBIND, session); + + session->vpp_handle = ~0; + session->session_state = STATE_DISCONNECT; + + return VPPCOM_OK; +} + +static int +vppcom_session_disconnect (u32 session_handle) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + svm_msg_q_t *vpp_evt_q; + vcl_session_t *session, *listen_session; + vcl_session_state_t state; + u64 vpp_handle; + + session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + + vpp_handle = session->vpp_handle; + state = session->session_state; + + VDBG (1, "session %u [0x%llx] state 0x%x (%s)", session->session_index, + vpp_handle, state, vppcom_session_state_str (state)); + + if (PREDICT_FALSE (state & STATE_LISTEN)) + { + VDBG (0, "ERROR: Cannot disconnect a listen socket!"); + return VPPCOM_EBADFD; + } + + if (state & STATE_VPP_CLOSING) + { + vpp_evt_q = vcl_session_vpp_evt_q (wrk, session); + vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index, + vpp_handle, 0); + VDBG (1, "session %u [0x%llx]: sending disconnect REPLY...", + session->session_index, vpp_handle); + } + else + { + VDBG (1, "session %u [0x%llx]: sending disconnect...", + session->session_index, vpp_handle); + vcl_send_session_disconnect (wrk, session); + } - VDBG (0, "VCL<%d>: app_name '%s', my_client_index %d (0x%x)", - getpid (), app_name, vcm->my_client_index, vcm->my_client_index); + if (session->listener_index != VCL_INVALID_SESSION_INDEX) + { + listen_session = vcl_session_get (wrk, session->listener_index); + listen_session->n_accepted_sessions--; } return VPPCOM_OK; } +/** + * Handle app exit + * + * Notify vpp of the disconnect and mark the worker as free. If we're the + * last worker, do a full cleanup otherwise, since we're probably a forked + * child, avoid syscalls as much as possible. We might've lost privileges. + */ +void +vppcom_app_exit (void) +{ + if (!pool_elts (vcm->workers)) + return; + vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ ); + vcl_set_worker_index (~0); + vcl_elog_stop (vcm); +} + +/* + * VPPCOM Public API functions + */ +int +vppcom_app_create (char *app_name) +{ + vppcom_cfg_t *vcl_cfg = &vcm->cfg; + int rv; + + if (vcm->is_init) + { + VDBG (1, "already initialized"); + return VPPCOM_EEXIST; + } + + vcm->is_init = 1; + vppcom_cfg (&vcm->cfg); + vcl_cfg = &vcm->cfg; + + vcm->main_cpu = pthread_self (); + vcm->main_pid = getpid (); + vcm->app_name = format (0, "%s", app_name); + vppcom_init_error_string_table (); + fifo_segment_main_init (&vcm->segment_main, vcl_cfg->segment_baseva, + 20 /* timeout in secs */ ); + pool_alloc (vcm->workers, vcl_cfg->max_workers); + clib_spinlock_init (&vcm->workers_lock); + clib_rwlock_init (&vcm->segment_table_lock); + atexit (vppcom_app_exit); + + /* Allocate default worker */ + vcl_worker_alloc_and_init (); + + /* API hookup and connect to VPP */ + vcl_elog_init (vcm); + vcm->app_state = STATE_APP_START; + rv = vppcom_connect_to_vpp (app_name); + if (rv) + { + VERR ("couldn't connect to VPP!"); + return rv; + } + VDBG (0, "sending session enable"); + rv = vppcom_app_session_enable (); + if (rv) + { + VERR ("vppcom_app_session_enable() failed!"); + return rv; + } + + VDBG (0, "sending app attach"); + rv = vppcom_app_attach (); + if (rv) + { + VERR ("vppcom_app_attach() failed!"); + return rv; + } + + VDBG (0, "app_name '%s', my_client_index %d (0x%x)", app_name, + vcm->workers[0].my_client_index, vcm->workers[0].my_client_index); + + return VPPCOM_OK; +} + void vppcom_app_destroy (void) { int rv; f64 orig_app_timeout; - if (vcm->my_client_index == ~0) + if (!pool_elts (vcm->workers)) return; - VDBG (0, "VCL<%d>: detaching from VPP, my_client_index %d (0x%x)", - getpid (), vcm->my_client_index, vcm->my_client_index); vcl_evt (VCL_EVT_DETACH, vcm); - vppcom_app_send_detach (); - orig_app_timeout = vcm->cfg.app_timeout; - vcm->cfg.app_timeout = 2.0; - rv = vppcom_wait_for_app_state_change (STATE_APP_ENABLED); - vcm->cfg.app_timeout = orig_app_timeout; - if (PREDICT_FALSE (rv)) - VDBG (0, "VCL<%d>: application detach timed out! returning %d (%s)", - getpid (), rv, vppcom_retval_str (rv)); + if (pool_elts (vcm->workers) == 1) + { + vcl_send_app_detach (vcl_worker_get_current ()); + orig_app_timeout = vcm->cfg.app_timeout; + vcm->cfg.app_timeout = 2.0; + rv = vcl_wait_for_app_state_change (STATE_APP_ENABLED); + vcm->cfg.app_timeout = orig_app_timeout; + if (PREDICT_FALSE (rv)) + VDBG (0, "application detach timed out! returning %d (%s)", rv, + vppcom_retval_str (rv)); + vec_free (vcm->app_name); + vcl_worker_cleanup (vcl_worker_get_current (), 0 /* notify vpp */ ); + } + else + { + vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ ); + } + vcl_set_worker_index (~0); vcl_elog_stop (vcm); vl_client_disconnect_from_vlib (); - vcm->my_client_index = ~0; - vcm->app_state = STATE_APP_START; } int vppcom_session_create (u8 proto, u8 is_nonblocking) { + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *session; - u32 session_index; - pool_get (vcm->sessions, session); - memset (session, 0, sizeof (*session)); - session_index = session - vcm->sessions; + session = vcl_session_alloc (wrk); session->session_type = proto; - session->session_state = STATE_START; + session->session_state = STATE_CLOSED; session->vpp_handle = ~0; - session->is_dgram = proto == VPPCOM_PROTO_UDP; + session->is_dgram = vcl_proto_is_dgram (proto); if (is_nonblocking) VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_NONBLOCK); @@ -846,221 +1246,201 @@ vppcom_session_create (u8 proto, u8 is_nonblocking) vcl_evt (VCL_EVT_CREATE, session, session_type, session->session_state, is_nonblocking, session_index); - VDBG (0, "VCL<%d>: sid %u", getpid (), session_index); + VDBG (0, "created session %u", session->session_index); - return (int) session_index; + return vcl_session_handle (session); } int -vppcom_session_close (uint32_t session_index) +vcl_session_cleanup (vcl_worker_t * wrk, vcl_session_t * session, + vcl_session_handle_t sh, u8 do_disconnect) { - vcl_session_t *session = 0; + vcl_session_state_t state; + u32 next_sh, vep_sh; int rv = VPPCOM_OK; - u8 is_vep; - u8 is_vep_session; - u32 next_sid; - u32 vep_idx; u64 vpp_handle; - uword *p; - session_state_t state; - - session = vcl_session_get (session_index); - if (!session) - return VPPCOM_EBADFD; + u8 is_vep; is_vep = session->is_vep; - is_vep_session = session->is_vep_session; - next_sid = session->vep.next_sid; - vep_idx = session->vep.vep_idx; + next_sh = session->vep.next_sh; + vep_sh = session->vep.vep_sh; state = session->session_state; vpp_handle = session->vpp_handle; - if (VPPCOM_DEBUG > 0) - { - if (is_vep) - clib_warning ("VCL<%d>: vep_idx %u / sid %u: " - "closing epoll session...", - getpid (), session_index, session_index); - else - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %d: " - "closing session...", - getpid (), vpp_handle, session_index); - } + VDBG (1, "session %u [0x%llx] closing", session->session_index, vpp_handle); if (is_vep) { - while (next_sid != ~0) + while (next_sh != ~0) { - rv = vppcom_epoll_ctl (session_index, EPOLL_CTL_DEL, next_sid, 0); + rv = vppcom_epoll_ctl (sh, EPOLL_CTL_DEL, next_sh, 0); if (PREDICT_FALSE (rv < 0)) - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL " - "vep_idx %u failed! rv %d (%s)", - getpid (), vpp_handle, next_sid, vep_idx, - rv, vppcom_retval_str (rv)); + VDBG (0, "vpp handle 0x%llx, sh %u: EPOLL_CTL_DEL vep_idx %u" + " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv, + vppcom_retval_str (rv)); - next_sid = session->vep.next_sid; + next_sh = session->vep.next_sh; } + goto cleanup; } - else - { - if (is_vep_session) - { - rv = vppcom_epoll_ctl (vep_idx, EPOLL_CTL_DEL, session_index, 0); - if (rv < 0) - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL " - "vep_idx %u failed! rv %d (%s)", - getpid (), vpp_handle, session_index, - vep_idx, rv, vppcom_retval_str (rv)); - } - if (state & STATE_LISTEN) - { - rv = vppcom_session_unbind (session_index); - if (PREDICT_FALSE (rv < 0)) - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: listener unbind " - "failed! rv %d (%s)", - getpid (), vpp_handle, session_index, - rv, vppcom_retval_str (rv)); - } - else if (state & STATE_OPEN) - { - rv = vppcom_session_disconnect (session_index); - if (PREDICT_FALSE (rv < 0)) - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "session disconnect failed! rv %d (%s)", - getpid (), vpp_handle, session_index, - rv, vppcom_retval_str (rv)); - } + if (session->is_vep_session) + { + rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, sh, 0); + if (rv < 0) + VDBG (0, "session %u [0x%llx]: EPOLL_CTL_DEL vep_idx %u " + "failed! rv %d (%s)", session->session_index, vpp_handle, + vep_sh, rv, vppcom_retval_str (rv)); } - if (vcl_session_is_ct (session)) + if (!do_disconnect) { - vcl_cut_through_registration_t *ctr; - uword mq_addr; - - mq_addr = pointer_to_uword (session->our_evt_q); - ctr = vcl_ct_registration_lock_and_lookup (mq_addr); - ASSERT (ctr); - if (ctr->epoll_evt_conn_index != ~0) - vcl_mq_epoll_del_evfd (ctr->epoll_evt_conn_index); - VDBG (0, "Removing ct registration %u", - vcl_ct_registration_index (ctr)); - vcl_ct_registration_del (ctr); - vcl_ct_registration_unlock (); + VDBG (1, "session %u [0x%llx] disconnect skipped", + session->session_index, vpp_handle); + goto cleanup; } - if (vpp_handle != ~0) + if (state & STATE_LISTEN) { - p = hash_get (vcm->session_index_by_vpp_handles, vpp_handle); - if (p) - hash_unset (vcm->session_index_by_vpp_handles, vpp_handle); + rv = vppcom_session_unbind (sh); + if (PREDICT_FALSE (rv < 0)) + VDBG (0, "session %u [0x%llx]: listener unbind failed! " + "rv %d (%s)", session->session_index, vpp_handle, rv, + vppcom_retval_str (rv)); + return rv; } - vcl_session_free (session); - - if (VPPCOM_DEBUG > 0) + else if ((state & STATE_OPEN) + || (vcl_session_is_connectable_listener (wrk, session))) { - if (is_vep) - clib_warning ("VCL<%d>: vep_idx %u / sid %u: epoll session removed.", - getpid (), session_index, session_index); - else - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: session removed.", - getpid (), vpp_handle, session_index); + rv = vppcom_session_disconnect (sh); + if (PREDICT_FALSE (rv < 0)) + VDBG (0, "ERROR: session %u [0x%llx]: disconnect failed!" + " rv %d (%s)", session->session_index, vpp_handle, + rv, vppcom_retval_str (rv)); + } + else if (state == STATE_DISCONNECT) + { + svm_msg_q_t *mq = vcl_session_vpp_evt_q (wrk, session); + vcl_send_session_reset_reply (mq, wrk->my_client_index, + session->vpp_handle, 0); + } + else if (state == STATE_DETACHED) + { + /* Should not happen. VPP cleaned up before app confirmed close */ + VDBG (0, "vpp freed session %d before close", session->session_index); + goto free_session; } + session->session_state = STATE_CLOSED; + + /* Session is removed only after vpp confirms the disconnect */ + return rv; + +cleanup: + vcl_session_table_del_vpp_handle (wrk, vpp_handle); +free_session: + vcl_session_free (wrk, session); vcl_evt (VCL_EVT_CLOSE, session, rv); return rv; } int -vppcom_session_bind (uint32_t session_index, vppcom_endpt_t * ep) +vppcom_session_close (uint32_t session_handle) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + vcl_session_t *session; + + session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + return vcl_session_cleanup (wrk, session, session_handle, + 1 /* do_disconnect */ ); +} + +int +vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep) { + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *session = 0; if (!ep || !ep->ip) return VPPCOM_EINVAL; - session = vcl_session_get (session_index); + session = vcl_session_get_w_handle (wrk, session_handle); if (!session) return VPPCOM_EBADFD; if (session->is_vep) { - clib_warning ("VCL<%d>: ERROR: sid %u: cannot " - "bind to an epoll session!", getpid (), session_index); + VDBG (0, "ERROR: cannot bind to epoll session %u!", + session->session_index); return VPPCOM_EBADFD; } session->transport.is_ip4 = ep->is_ip4; if (ep->is_ip4) - clib_memcpy (&session->transport.lcl_ip.ip4, ep->ip, - sizeof (ip4_address_t)); + clib_memcpy_fast (&session->transport.lcl_ip.ip4, ep->ip, + sizeof (ip4_address_t)); else - clib_memcpy (&session->transport.lcl_ip.ip6, ep->ip, - sizeof (ip6_address_t)); + clib_memcpy_fast (&session->transport.lcl_ip.ip6, ep->ip, + sizeof (ip6_address_t)); session->transport.lcl_port = ep->port; - VDBG (0, "VCL<%d>: sid %u: binding to local %s address %U port %u, " - "proto %s", getpid (), session_index, + VDBG (0, "session %u handle %u: binding to local %s address %U port %u, " + "proto %s", session->session_index, session_handle, session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &session->transport.lcl_ip, session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, clib_net_to_host_u16 (session->transport.lcl_port), - session->session_type ? "UDP" : "TCP"); + vppcom_proto_str (session->session_type)); vcl_evt (VCL_EVT_BIND, session); if (session->session_type == VPPCOM_PROTO_UDP) - vppcom_session_listen (session_index, 10); + vppcom_session_listen (session_handle, 10); return VPPCOM_OK; } int -vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len) +vppcom_session_listen (uint32_t listen_sh, uint32_t q_len) { + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *listen_session = 0; u64 listen_vpp_handle; int rv; - listen_session = vcl_session_get (listen_session_index); - if (!listen_session) + listen_session = vcl_session_get_w_handle (wrk, listen_sh); + if (!listen_session || listen_session->is_vep) return VPPCOM_EBADFD; if (q_len == 0 || q_len == ~0) q_len = vcm->cfg.listen_queue_size; - if (listen_session->is_vep) - { - clib_warning ("VCL<%d>: ERROR: sid %u: cannot listen on an " - "epoll session!", getpid (), listen_session_index); - return VPPCOM_EBADFD; - } - listen_vpp_handle = listen_session->vpp_handle; if (listen_session->session_state & STATE_LISTEN) { - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: already in listen state!", - getpid (), listen_vpp_handle, listen_session_index); + VDBG (0, "session %u [0x%llx]: already in listen state!", + listen_sh, listen_vpp_handle); return VPPCOM_OK; } - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: sending VPP bind+listen " - "request...", getpid (), listen_vpp_handle, listen_session_index); + VDBG (0, "session %u: sending vpp listen request...", listen_sh); /* * Send listen request to vpp and wait for reply */ - vppcom_send_bind_sock (listen_session, listen_session_index); - rv = - vppcom_wait_for_session_state_change (listen_session_index, STATE_LISTEN, - vcm->cfg.session_timeout); + vcl_send_session_listen (wrk, listen_session); + rv = vppcom_wait_for_session_state_change (listen_session->session_index, + STATE_LISTEN, + vcm->cfg.session_timeout); if (PREDICT_FALSE (rv)) { - listen_session = vcl_session_get (listen_session_index); - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: bind+listen failed! " - "returning %d (%s)", getpid (), listen_session->vpp_handle, - listen_session_index, rv, vppcom_retval_str (rv)); + listen_session = vcl_session_get_w_handle (wrk, listen_sh); + VDBG (0, "session %u [0x%llx]: listen failed! returning %d (%s)", + listen_sh, listen_session->vpp_handle, rv, + vppcom_retval_str (rv)); return rv; } @@ -1068,218 +1448,355 @@ vppcom_session_listen (uint32_t listen_session_index, uint32_t q_len) } int -validate_args_session_accept_ (vcl_session_t * listen_session) +vppcom_session_tls_add_cert (uint32_t session_handle, char *cert, + uint32_t cert_len) +{ + + vcl_worker_t *wrk = vcl_worker_get_current (); + vcl_session_t *session = 0; + + session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + + if (cert_len == 0 || cert_len == ~0) + return VPPCOM_EBADFD; + + /* + * Send listen request to vpp and wait for reply + */ + vppcom_send_application_tls_cert_add (session, cert, cert_len); + vcm->app_state = STATE_APP_ADDING_TLS_DATA; + vcl_wait_for_app_state_change (STATE_APP_READY); + return VPPCOM_OK; + +} + +int +vppcom_session_tls_add_key (uint32_t session_handle, char *key, + uint32_t key_len) { - u32 listen_session_index = listen_session - vcm->sessions; - /* Input validation - expects spinlock on sessions_lockp */ - if (listen_session->is_vep) + vcl_worker_t *wrk = vcl_worker_get_current (); + vcl_session_t *session = 0; + + session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + + if (key_len == 0 || key_len == ~0) + return VPPCOM_EBADFD; + + vppcom_send_application_tls_key_add (session, key, key_len); + vcm->app_state = STATE_APP_ADDING_TLS_DATA; + vcl_wait_for_app_state_change (STATE_APP_READY); + return VPPCOM_OK; +} + +static int +validate_args_session_accept_ (vcl_worker_t * wrk, vcl_session_t * ls) +{ + if (ls->is_vep) { - clib_warning ("VCL<%d>: ERROR: sid %u: cannot accept on an " - "epoll session!", getpid (), listen_session_index); + VDBG (0, "ERROR: cannot accept on epoll session %u!", + ls->session_index); return VPPCOM_EBADFD; } - if (listen_session->session_state != STATE_LISTEN) + if ((ls->session_state != STATE_LISTEN) + && (!vcl_session_is_connectable_listener (wrk, ls))) { - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "not in listen state! state 0x%x (%s)", getpid (), - listen_session->vpp_handle, listen_session_index, - listen_session->session_state, - vppcom_session_state_str (listen_session->session_state)); + VDBG (0, + "ERROR: session [0x%llx]: not in listen state! state 0x%x" + " (%s)", ls->vpp_handle, ls->session_state, + vppcom_session_state_str (ls->session_state)); return VPPCOM_EBADFD; } return VPPCOM_OK; } int -vppcom_session_accept (uint32_t listen_session_index, vppcom_endpt_t * ep, +vppcom_unformat_proto (uint8_t * proto, char *proto_str) +{ + if (!strcmp (proto_str, "TCP")) + *proto = VPPCOM_PROTO_TCP; + else if (!strcmp (proto_str, "tcp")) + *proto = VPPCOM_PROTO_TCP; + else if (!strcmp (proto_str, "UDP")) + *proto = VPPCOM_PROTO_UDP; + else if (!strcmp (proto_str, "udp")) + *proto = VPPCOM_PROTO_UDP; + else if (!strcmp (proto_str, "UDPC")) + *proto = VPPCOM_PROTO_UDPC; + else if (!strcmp (proto_str, "udpc")) + *proto = VPPCOM_PROTO_UDPC; + else if (!strcmp (proto_str, "TLS")) + *proto = VPPCOM_PROTO_TLS; + else if (!strcmp (proto_str, "tls")) + *proto = VPPCOM_PROTO_TLS; + else if (!strcmp (proto_str, "QUIC")) + *proto = VPPCOM_PROTO_QUIC; + else if (!strcmp (proto_str, "quic")) + *proto = VPPCOM_PROTO_QUIC; + else + return 1; + return 0; +} + +int +vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep, uint32_t flags) { + u32 client_session_index = ~0, listen_session_index, accept_flags = 0; + vcl_worker_t *wrk = vcl_worker_get_current (); session_accepted_msg_t accepted_msg; vcl_session_t *listen_session = 0; vcl_session_t *client_session = 0; - u32 client_session_index = ~0; - svm_msg_q_t *vpp_evt_q; vcl_session_msg_t *evt; - u64 listen_vpp_handle; svm_msg_q_msg_t msg; session_event_t *e; u8 is_nonblocking; int rv; - listen_session = vcl_session_get (listen_session_index); + listen_session = vcl_session_get_w_handle (wrk, listen_session_handle); if (!listen_session) return VPPCOM_EBADFD; - if ((rv = validate_args_session_accept_ (listen_session))) + listen_session_index = listen_session->session_index; + if ((rv = validate_args_session_accept_ (wrk, listen_session))) return rv; if (clib_fifo_elts (listen_session->accept_evts_fifo)) { clib_fifo_sub2 (listen_session->accept_evts_fifo, evt); + accept_flags = evt->flags; accepted_msg = evt->accepted_msg; goto handle; } is_nonblocking = VCL_SESS_ATTR_TEST (listen_session->attr, VCL_SESS_ATTR_NONBLOCK); - if (svm_msg_q_is_empty (vcm->app_event_queue) && is_nonblocking) - return VPPCOM_EAGAIN; - while (1) { - if (svm_msg_q_sub (vcm->app_event_queue, &msg, SVM_Q_WAIT, 0)) + if (svm_msg_q_is_empty (wrk->app_event_queue) && is_nonblocking) + return VPPCOM_EAGAIN; + + if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_WAIT, 0)) return VPPCOM_EAGAIN; - e = svm_msg_q_msg_data (vcm->app_event_queue, &msg); + e = svm_msg_q_msg_data (wrk->app_event_queue, &msg); if (e->event_type != SESSION_CTRL_EVT_ACCEPTED) { - clib_warning ("discarded event: %u", e->event_type); - svm_msg_q_free_msg (vcm->app_event_queue, &msg); + vcl_handle_mq_event (wrk, e); + svm_msg_q_free_msg (wrk->app_event_queue, &msg); continue; } - clib_memcpy (&accepted_msg, e->data, sizeof (accepted_msg)); - svm_msg_q_free_msg (vcm->app_event_queue, &msg); + clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg)); + svm_msg_q_free_msg (wrk->app_event_queue, &msg); break; } handle: - client_session_index = vcl_session_accepted_handler (&accepted_msg); - listen_session = vcl_session_get (listen_session_index); - client_session = vcl_session_get (client_session_index); + client_session_index = vcl_session_accepted_handler (wrk, &accepted_msg, + listen_session_index); + if (client_session_index == VCL_INVALID_SESSION_INDEX) + return VPPCOM_ECONNABORTED; + + listen_session = vcl_session_get (wrk, listen_session_index); + client_session = vcl_session_get (wrk, client_session_index); if (flags & O_NONBLOCK) VCL_SESS_ATTR_SET (client_session->attr, VCL_SESS_ATTR_NONBLOCK); - listen_vpp_handle = listen_session->vpp_handle; - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: Got a client request! " - "vpp handle 0x%llx, sid %u, flags %d, is_nonblocking %u", - getpid (), listen_vpp_handle, listen_session_index, - client_session->vpp_handle, client_session_index, - flags, VCL_SESS_ATTR_TEST (client_session->attr, - VCL_SESS_ATTR_NONBLOCK)); + VDBG (1, "listener %u [0x%llx]: Got a connect request! session %u [0x%llx]," + " flags %d, is_nonblocking %u", listen_session->session_index, + listen_session->vpp_handle, client_session_index, + client_session->vpp_handle, flags, + VCL_SESS_ATTR_TEST (client_session->attr, VCL_SESS_ATTR_NONBLOCK)); if (ep) { ep->is_ip4 = client_session->transport.is_ip4; ep->port = client_session->transport.rmt_port; if (client_session->transport.is_ip4) - clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip4, - sizeof (ip4_address_t)); + clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip4, + sizeof (ip4_address_t)); else - clib_memcpy (ep->ip, &client_session->transport.rmt_ip.ip6, - sizeof (ip6_address_t)); + clib_memcpy_fast (ep->ip, &client_session->transport.rmt_ip.ip6, + sizeof (ip6_address_t)); } - if (accepted_msg.server_event_queue_address) - vpp_evt_q = uword_to_pointer (accepted_msg.vpp_event_queue_address, - svm_msg_q_t *); - else - vpp_evt_q = client_session->vpp_evt_q; - - vcl_send_session_accepted_reply (vpp_evt_q, client_session->client_context, - client_session->vpp_handle, 0); - - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: accepted vpp handle 0x%llx, " - "sid %u connection from peer %s address %U port %u to local %s " - "address %U port %u", getpid (), listen_vpp_handle, - listen_session_index, client_session->vpp_handle, - client_session_index, - client_session->transport.is_ip4 ? "IPv4" : "IPv6", + VDBG (0, "listener %u [0x%llx] accepted %u [0x%llx] peer: %U:%u " + "local: %U:%u", listen_session_handle, listen_session->vpp_handle, + client_session_index, client_session->vpp_handle, format_ip46_address, &client_session->transport.rmt_ip, client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, clib_net_to_host_u16 (client_session->transport.rmt_port), - client_session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &client_session->transport.lcl_ip, client_session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, clib_net_to_host_u16 (client_session->transport.lcl_port)); vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session, client_session_index); - return client_session_index; + /* + * Session might have been closed already + */ + if (accept_flags) + { + if (accept_flags & VCL_ACCEPTED_F_CLOSED) + client_session->session_state = STATE_VPP_CLOSING; + else if (accept_flags & VCL_ACCEPTED_F_RESET) + client_session->session_state = STATE_DISCONNECT; + } + return vcl_session_handle (client_session); +} + +static void +vcl_ip_copy_from_ep (ip46_address_t * ip, vppcom_endpt_t * ep) +{ + if (ep->is_ip4) + clib_memcpy_fast (&ip->ip4, ep->ip, sizeof (ip4_address_t)); + else + clib_memcpy_fast (&ip->ip6, ep->ip, sizeof (ip6_address_t)); +} + +void +vcl_ip_copy_to_ep (ip46_address_t * ip, vppcom_endpt_t * ep, u8 is_ip4) +{ + ep->is_ip4 = is_ip4; + if (is_ip4) + clib_memcpy_fast (ep->ip, &ip->ip4, sizeof (ip4_address_t)); + else + clib_memcpy_fast (ep->ip, &ip->ip6, sizeof (ip6_address_t)); } int -vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep) +vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep) { + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *session = 0; - u64 vpp_handle = 0; + u32 session_index; int rv; - session = vcl_session_get (session_index); + session = vcl_session_get_w_handle (wrk, session_handle); if (!session) return VPPCOM_EBADFD; + session_index = session->session_index; if (PREDICT_FALSE (session->is_vep)) { - clib_warning ("VCL<%d>: ERROR: sid %u: cannot " - "connect on an epoll session!", getpid (), session_index); + VDBG (0, "ERROR: cannot connect epoll session %u!", + session->session_index); return VPPCOM_EBADFD; } if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN)) { - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: session already " + VDBG (0, "session handle %u [0x%llx]: session already " "connected to %s %U port %d proto %s, state 0x%x (%s)", - getpid (), session->vpp_handle, session_index, - session->transport.is_ip4 ? "IPv4" : "IPv6", - format_ip46_address, + session_handle, session->vpp_handle, + session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &session->transport.rmt_ip, session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, clib_net_to_host_u16 (session->transport.rmt_port), - session->session_type ? "UDP" : "TCP", session->session_state, + vppcom_proto_str (session->session_type), session->session_state, vppcom_session_state_str (session->session_state)); return VPPCOM_OK; } session->transport.is_ip4 = server_ep->is_ip4; - if (session->transport.is_ip4) - clib_memcpy (&session->transport.rmt_ip.ip4, server_ep->ip, - sizeof (ip4_address_t)); - else - clib_memcpy (&session->transport.rmt_ip.ip6, server_ep->ip, - sizeof (ip6_address_t)); + vcl_ip_copy_from_ep (&session->transport.rmt_ip, server_ep); session->transport.rmt_port = server_ep->port; + session->parent_handle = VCL_INVALID_SESSION_HANDLE; - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connecting to server %s %U " - "port %d proto %s", - getpid (), session->vpp_handle, session_index, + VDBG (0, "session handle %u: connecting to server %s %U " + "port %d proto %s", session_handle, session->transport.is_ip4 ? "IPv4" : "IPv6", format_ip46_address, &session->transport.rmt_ip, session->transport.is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, clib_net_to_host_u16 (session->transport.rmt_port), - session->session_type ? "UDP" : "TCP"); + vppcom_proto_str (session->session_type)); + + vcl_send_session_connect (wrk, session); + + if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)) + return VPPCOM_EINPROGRESS; /* - * Send connect request and wait for reply from vpp + * Wait for reply from vpp if blocking */ - vppcom_send_connect_sock (session, session_index); rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT, vcm->cfg.session_timeout); - session = vcl_session_get (session_index); - vpp_handle = session->vpp_handle; + session = vcl_session_get (wrk, session_index); + VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index, + session->vpp_handle, rv ? "failed" : "succeeded"); - if (PREDICT_FALSE (rv)) + return rv; +} + +int +vppcom_session_stream_connect (uint32_t session_handle, + uint32_t parent_session_handle) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + vcl_session_t *session, *parent_session; + u32 session_index, parent_session_index; + int rv; + + session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + parent_session = vcl_session_get_w_handle (wrk, parent_session_handle); + if (!parent_session) + return VPPCOM_EBADFD; + + session_index = session->session_index; + parent_session_index = parent_session->session_index; + if (PREDICT_FALSE (session->is_vep)) { - if (VPPCOM_DEBUG > 0) - { - if (session) - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: connect " - "failed! returning %d (%s)", getpid (), vpp_handle, - session_index, rv, vppcom_retval_str (rv)); - else - clib_warning ("VCL<%d>: no session for sid %u: connect failed! " - "returning %d (%s)", getpid (), - session_index, rv, vppcom_retval_str (rv)); - } + VDBG (0, "ERROR: cannot connect epoll session %u!", + session->session_index); + return VPPCOM_EBADFD; } - else - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connected!", - getpid (), vpp_handle, session_index); + + if (PREDICT_FALSE (session->session_state & CLIENT_STATE_OPEN)) + { + VDBG (0, "session handle %u [0x%llx]: session already " + "connected to session %u [0x%llx] proto %s, state 0x%x (%s)", + session_handle, session->vpp_handle, + parent_session_handle, parent_session->vpp_handle, + vppcom_proto_str (session->session_type), session->session_state, + vppcom_session_state_str (session->session_state)); + return VPPCOM_OK; + } + + /* Connect to quic session specifics */ + session->transport.is_ip4 = parent_session->transport.is_ip4; + session->transport.rmt_ip.ip4.as_u32 = (uint32_t) 1; + session->transport.rmt_port = 0; + session->parent_handle = parent_session->vpp_handle; + + VDBG (0, "session handle %u: connecting to session %u [0x%llx]", + session_handle, parent_session_handle, parent_session->vpp_handle); + + /* + * Send connect request and wait for reply from vpp + */ + vcl_send_session_connect (wrk, session); + rv = vppcom_wait_for_session_state_change (session_index, STATE_CONNECT, + vcm->cfg.session_timeout); + + session->listener_index = parent_session_index; + parent_session = vcl_session_get_w_handle (wrk, parent_session_handle); + if (parent_session) + parent_session->n_accepted_sessions++; + + session = vcl_session_get (wrk, session_index); + VDBG (0, "session %u [0x%llx]: connect %s!", session->session_index, + session->vpp_handle, rv ? "failed" : "succeeded"); return rv; } @@ -1287,74 +1804,58 @@ vppcom_session_connect (uint32_t session_index, vppcom_endpt_t * server_ep) static u8 vcl_is_rx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct) { - if (!is_ct) - return (e->event_type == FIFO_EVENT_APP_RX - && e->fifo->client_session_index == sid); - else - return (e->event_type == SESSION_IO_EVT_CT_TX); -} - -static inline u8 -vcl_session_is_readable (vcl_session_t * s) -{ - return ((s->session_state & STATE_OPEN) - || (s->session_state == STATE_LISTEN - && s->session_type == VPPCOM_PROTO_UDP)); + return (e->event_type == SESSION_IO_EVT_RX && e->session_index == sid); } static inline int -vppcom_session_read_internal (uint32_t session_index, void *buf, int n, +vppcom_session_read_internal (uint32_t session_handle, void *buf, int n, u8 peek) { - int n_read = 0, rv, is_nonblocking; + vcl_worker_t *wrk = vcl_worker_get_current (); + int n_read = 0, is_nonblocking; vcl_session_t *s = 0; svm_fifo_t *rx_fifo; svm_msg_q_msg_t msg; session_event_t *e; svm_msg_q_t *mq; - u8 is_full; + u8 is_ct; if (PREDICT_FALSE (!buf)) return VPPCOM_EINVAL; - s = vcl_session_get (session_index); - if (PREDICT_FALSE (!s)) + s = vcl_session_get_w_handle (wrk, session_handle); + if (PREDICT_FALSE (!s || s->is_vep)) return VPPCOM_EBADFD; - if (PREDICT_FALSE (s->is_vep)) + if (PREDICT_FALSE (!vcl_session_is_open (s))) { - clib_warning ("VCL<%d>: ERROR: sid %u: cannot " - "read from an epoll session!", getpid (), session_index); - return VPPCOM_EBADFD; + VDBG (0, "session %u[0x%llx] is not open! state 0x%x (%s)", + s->session_index, s->vpp_handle, s->session_state, + vppcom_session_state_str (s->session_state)); + return vcl_session_closed_error (s); } is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK); - rx_fifo = s->rx_fifo; - - if (PREDICT_FALSE (!vcl_session_is_readable (s))) - { - session_state_t state = s->session_state; - rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN); - - VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: %s session is not open! " - "state 0x%x (%s), returning %d (%s)", - getpid (), s->vpp_handle, session_index, state, - vppcom_session_state_str (state), rv, vppcom_retval_str (rv)); - return rv; - } + is_ct = vcl_session_is_ct (s); + mq = wrk->app_event_queue; + rx_fifo = is_ct ? s->ct_rx_fifo : s->rx_fifo; + s->has_rx_evt = 0; - mq = vcl_session_is_ct (s) ? s->our_evt_q : vcm->app_event_queue; - svm_fifo_unset_event (rx_fifo); - is_full = svm_fifo_is_full (rx_fifo); - - if (svm_fifo_is_empty (rx_fifo)) + if (svm_fifo_is_empty_cons (rx_fifo)) { if (is_nonblocking) { - return VPPCOM_OK; + if (vcl_session_is_closing (s)) + return vcl_session_closing_error (s); + svm_fifo_unset_event (s->rx_fifo); + return VPPCOM_EWOULDBLOCK; } - while (1) + while (svm_fifo_is_empty_cons (rx_fifo)) { + if (vcl_session_is_closing (s)) + return vcl_session_closing_error (s); + + svm_fifo_unset_event (s->rx_fifo); svm_msg_q_lock (mq); if (svm_msg_q_is_empty (mq)) svm_msg_q_wait (mq); @@ -1362,20 +1863,9 @@ vppcom_session_read_internal (uint32_t session_index, void *buf, int n, svm_msg_q_sub_w_lock (mq, &msg); e = svm_msg_q_msg_data (mq, &msg); svm_msg_q_unlock (mq); - if (!vcl_is_rx_evt_for_session (e, session_index, - s->our_evt_q != 0)) - { - vcl_handle_mq_ctrl_event (e); - svm_msg_q_free_msg (mq, &msg); - continue; - } - svm_fifo_unset_event (rx_fifo); + if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct)) + vcl_handle_mq_event (wrk, e); svm_msg_q_free_msg (mq, &msg); - if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY)) - return 0; - if (svm_fifo_is_empty (rx_fifo)) - continue; - break; } } @@ -1384,268 +1874,367 @@ vppcom_session_read_internal (uint32_t session_index, void *buf, int n, else n_read = app_recv_stream_raw (rx_fifo, buf, n, 0, peek); - if (vcl_session_is_ct (s) && is_full) - { - /* If the peer is not polling send notification */ - if (!svm_fifo_has_event (s->rx_fifo)) - app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo, - SESSION_IO_EVT_CT_RX, SVM_Q_WAIT); - } + if (svm_fifo_is_empty_cons (rx_fifo)) + svm_fifo_unset_event (s->rx_fifo); - if (VPPCOM_DEBUG > 2) + /* Cut-through sessions might request tx notifications on rx fifos */ + if (PREDICT_FALSE (rx_fifo->want_deq_ntf)) { - if (n_read > 0) - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes " - "from (%p)", getpid (), s->vpp_handle, - session_index, n_read, rx_fifo); - else - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: nothing read! " - "returning %d (%s)", getpid (), s->vpp_handle, - session_index, n_read, vppcom_retval_str (n_read)); + app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo->master_session_index, + SESSION_IO_EVT_RX, SVM_Q_WAIT); + svm_fifo_reset_has_deq_ntf (s->rx_fifo); } + + VDBG (2, "session %u[0x%llx]: read %d bytes from (%p)", s->session_index, + s->vpp_handle, n_read, rx_fifo); + return n_read; } int -vppcom_session_read (uint32_t session_index, void *buf, size_t n) +vppcom_session_read (uint32_t session_handle, void *buf, size_t n) { - return (vppcom_session_read_internal (session_index, buf, n, 0)); + return (vppcom_session_read_internal (session_handle, buf, n, 0)); } static int -vppcom_session_peek (uint32_t session_index, void *buf, int n) +vppcom_session_peek (uint32_t session_handle, void *buf, int n) { - return (vppcom_session_read_internal (session_index, buf, n, 1)); + return (vppcom_session_read_internal (session_handle, buf, n, 1)); } -static inline int -vppcom_session_read_ready (vcl_session_t * session) +int +vppcom_session_read_segments (uint32_t session_handle, + vppcom_data_segments_t ds) { - /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - if (PREDICT_FALSE (session->is_vep)) - { - clib_warning ("VCL<%d>: ERROR: sid %u: cannot read from an " - "epoll session!", getpid (), vcl_session_index (session)); - return VPPCOM_EBADFD; - } + vcl_worker_t *wrk = vcl_worker_get_current (); + int n_read = 0, is_nonblocking; + vcl_session_t *s = 0; + svm_fifo_t *rx_fifo; + svm_msg_q_msg_t msg; + session_event_t *e; + svm_msg_q_t *mq; + u8 is_ct; + + s = vcl_session_get_w_handle (wrk, session_handle); + if (PREDICT_FALSE (!s || s->is_vep)) + return VPPCOM_EBADFD; + + if (PREDICT_FALSE (!vcl_session_is_open (s))) + return vcl_session_closed_error (s); + + is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK); + is_ct = vcl_session_is_ct (s); + mq = is_ct ? s->our_evt_q : wrk->app_event_queue; + rx_fifo = s->rx_fifo; + s->has_rx_evt = 0; + + if (is_ct) + svm_fifo_unset_event (s->rx_fifo); - if (PREDICT_FALSE (!(session->session_state & (STATE_OPEN | STATE_LISTEN)))) + if (svm_fifo_is_empty_cons (rx_fifo)) { - session_state_t state = session->session_state; - int rv; + if (is_nonblocking) + { + svm_fifo_unset_event (rx_fifo); + return VPPCOM_EWOULDBLOCK; + } + while (svm_fifo_is_empty_cons (rx_fifo)) + { + if (vcl_session_is_closing (s)) + return vcl_session_closing_error (s); - rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN); + svm_fifo_unset_event (rx_fifo); + svm_msg_q_lock (mq); + if (svm_msg_q_is_empty (mq)) + svm_msg_q_wait (mq); - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open!" - " state 0x%x (%s), returning %d (%s)", getpid (), - session->vpp_handle, vcl_session_index (session), state, - vppcom_session_state_str (state), rv, vppcom_retval_str (rv)); - return rv; + svm_msg_q_sub_w_lock (mq, &msg); + e = svm_msg_q_msg_data (mq, &msg); + svm_msg_q_unlock (mq); + if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct)) + vcl_handle_mq_event (wrk, e); + svm_msg_q_free_msg (mq, &msg); + } } - if (session->session_state & STATE_LISTEN) - return clib_fifo_elts (session->accept_evts_fifo); + n_read = svm_fifo_segments (rx_fifo, (svm_fifo_seg_t *) ds); + svm_fifo_unset_event (rx_fifo); + + return n_read; +} + +void +vppcom_session_free_segments (uint32_t session_handle, + vppcom_data_segments_t ds) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + vcl_session_t *s; + + s = vcl_session_get_w_handle (wrk, session_handle); + if (PREDICT_FALSE (!s || s->is_vep)) + return; + + svm_fifo_segments_free (s->rx_fifo, (svm_fifo_seg_t *) ds); +} - return svm_fifo_max_dequeue (session->rx_fifo); +int +vppcom_data_segment_copy (void *buf, vppcom_data_segments_t ds, u32 max_bytes) +{ + u32 first_copy = clib_min (ds[0].len, max_bytes); + clib_memcpy_fast (buf, ds[0].data, first_copy); + if (first_copy < max_bytes) + { + clib_memcpy_fast (buf + first_copy, ds[1].data, + clib_min (ds[1].len, max_bytes - first_copy)); + } + return 0; } static u8 vcl_is_tx_evt_for_session (session_event_t * e, u32 sid, u8 is_ct) { - if (!is_ct) - return (e->event_type == FIFO_EVENT_APP_TX - && e->fifo->client_session_index == sid); - else - return (e->event_type == SESSION_IO_EVT_CT_RX); + return (e->event_type == SESSION_IO_EVT_TX && e->session_index == sid); } -int -vppcom_session_write (uint32_t session_index, void *buf, size_t n) +static inline int +vppcom_session_write_inline (uint32_t session_handle, void *buf, size_t n, + u8 is_flush) { - int rv, n_write, is_nonblocking; + vcl_worker_t *wrk = vcl_worker_get_current (); + int n_write, is_nonblocking; vcl_session_t *s = 0; - svm_fifo_t *tx_fifo = 0; session_evt_type_t et; svm_msg_q_msg_t msg; + svm_fifo_t *tx_fifo; session_event_t *e; svm_msg_q_t *mq; + u8 is_ct; - if (PREDICT_FALSE (!buf)) + if (PREDICT_FALSE (!buf || n == 0)) return VPPCOM_EINVAL; - s = vcl_session_get (session_index); + s = vcl_session_get_w_handle (wrk, session_handle); if (PREDICT_FALSE (!s)) return VPPCOM_EBADFD; - tx_fifo = s->tx_fifo; - is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK); - if (PREDICT_FALSE (s->is_vep)) { - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "cannot write to an epoll session!", - getpid (), s->vpp_handle, session_index); - + VDBG (0, "ERROR: session %u [0x%llx]: cannot write to an epoll" + " session!", s->session_index, s->vpp_handle); return VPPCOM_EBADFD; } - if (!(s->session_state & STATE_OPEN)) + if (PREDICT_FALSE (!vcl_session_is_open (s))) { - session_state_t state = s->session_state; - rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN); - VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: session is not open! " - "state 0x%x (%s)", - getpid (), s->vpp_handle, session_index, - state, vppcom_session_state_str (state)); - return rv; + VDBG (1, "session %u [0x%llx]: is not open! state 0x%x (%s)", + s->session_index, s->vpp_handle, s->session_state, + vppcom_session_state_str (s->session_state)); + return vcl_session_closed_error (s);; } - mq = vcl_session_is_ct (s) ? s->our_evt_q : vcm->app_event_queue; - if (svm_fifo_is_full (tx_fifo)) + is_ct = vcl_session_is_ct (s); + tx_fifo = is_ct ? s->ct_tx_fifo : s->tx_fifo; + is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK); + + mq = wrk->app_event_queue; + if (svm_fifo_is_full_prod (tx_fifo)) { if (is_nonblocking) { return VPPCOM_EWOULDBLOCK; } - while (svm_fifo_is_full (tx_fifo)) + while (svm_fifo_is_full_prod (tx_fifo)) { + svm_fifo_add_want_deq_ntf (tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF); + if (vcl_session_is_closing (s)) + return vcl_session_closing_error (s); svm_msg_q_lock (mq); - while (svm_msg_q_is_empty (mq) && svm_msg_q_timedwait (mq, 10e-6)) - ; + if (svm_msg_q_is_empty (mq)) + svm_msg_q_wait (mq); + svm_msg_q_sub_w_lock (mq, &msg); e = svm_msg_q_msg_data (mq, &msg); svm_msg_q_unlock (mq); - if (!vcl_is_tx_evt_for_session (e, session_index, - s->our_evt_q != 0)) - vcl_handle_mq_ctrl_event (e); + if (!vcl_is_tx_evt_for_session (e, s->session_index, is_ct)) + vcl_handle_mq_event (wrk, e); svm_msg_q_free_msg (mq, &msg); } } - ASSERT (FIFO_EVENT_APP_TX + 1 == SESSION_IO_EVT_CT_TX); - et = FIFO_EVENT_APP_TX + vcl_session_is_ct (s); + et = SESSION_IO_EVT_TX; + if (is_flush && !is_ct) + et = SESSION_IO_EVT_TX_FLUSH; + if (s->is_dgram) n_write = app_send_dgram_raw (tx_fifo, &s->transport, - s->vpp_evt_q, buf, n, et, SVM_Q_WAIT); + s->vpp_evt_q, buf, n, et, + 0 /* do_evt */ , SVM_Q_WAIT); else n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et, - SVM_Q_WAIT); + 0 /* do_evt */ , SVM_Q_WAIT); + + if (svm_fifo_set_event (s->tx_fifo)) + app_send_io_evt_to_vpp (s->vpp_evt_q, s->tx_fifo->master_session_index, + et, SVM_Q_WAIT); ASSERT (n_write > 0); - if (VPPCOM_DEBUG > 2) - { - if (n_write <= 0) - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: " - "FIFO-FULL (%p)", getpid (), s->vpp_handle, - session_index, tx_fifo); - else - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: " - "wrote %d bytes tx-fifo: (%p)", getpid (), - s->vpp_handle, session_index, n_write, tx_fifo); - } + VDBG (2, "session %u [0x%llx]: wrote %d bytes", s->session_index, + s->vpp_handle, n_write); + return n_write; } -static vcl_session_t * -vcl_ct_session_get_from_fifo (svm_fifo_t * f, u8 type) +int +vppcom_session_write (uint32_t session_handle, void *buf, size_t n) { - vcl_session_t *s; - s = vcl_session_get (f->client_session_index); - if (s) - { - /* rx fifo */ - if (type == 0 && s->rx_fifo == f) - return s; - /* tx fifo */ - if (type == 1 && s->tx_fifo == f) - return s; - } - s = vcl_session_get (f->master_session_index); - if (s) - { - if (type == 0 && s->rx_fifo == f) - return s; - if (type == 1 && s->tx_fifo == f) - return s; - } - return 0; + return vppcom_session_write_inline (session_handle, buf, n, + 0 /* is_flush */ ); } -static inline int -vppcom_session_write_ready (vcl_session_t * session, u32 session_index) +int +vppcom_session_write_msg (uint32_t session_handle, void *buf, size_t n) { - /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - if (PREDICT_FALSE (session->is_vep)) - { - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "cannot write to an epoll session!", - getpid (), session->vpp_handle, session_index); - return VPPCOM_EBADFD; - } - - if (PREDICT_FALSE (session->session_state & STATE_LISTEN)) - { - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "cannot write to a listen session!", - getpid (), session->vpp_handle, session_index); - return VPPCOM_EBADFD; - } - - if (PREDICT_FALSE (!(session->session_state & STATE_OPEN))) - { - session_state_t state = session->session_state; - int rv; - - rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN); - clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " - "session is not open! state 0x%x (%s), " - "returning %d (%s)", getpid (), session->vpp_handle, - session_index, - state, vppcom_session_state_str (state), - rv, vppcom_retval_str (rv)); - return rv; - } - - VDBG (3, "VCL<%d>: vpp handle 0x%llx, sid %u: peek %s (%p), ready = %d", - getpid (), session->vpp_handle, session_index, session->tx_fifo, - svm_fifo_max_enqueue (session->tx_fifo)); - - return svm_fifo_max_enqueue (session->tx_fifo); + return vppcom_session_write_inline (session_handle, buf, n, + 1 /* is_flush */ ); } -static inline int -vcl_mq_dequeue_batch (svm_msg_q_t * mq) +#define vcl_fifo_rx_evt_valid_or_break(_s) \ +if (PREDICT_FALSE (!_s->rx_fifo)) \ + break; \ +if (PREDICT_FALSE (svm_fifo_is_empty (_s->rx_fifo))) \ + { \ + if (!vcl_session_is_ct (_s)) \ + { \ + svm_fifo_unset_event (_s->rx_fifo); \ + if (svm_fifo_is_empty (_s->rx_fifo)) \ + break; \ + } \ + else if (svm_fifo_is_empty (_s->ct_rx_fifo)) \ + { \ + svm_fifo_unset_event (_s->ct_rx_fifo); \ + if (svm_fifo_is_empty (_s->ct_rx_fifo)) \ + break; \ + } \ + } \ + +static void +vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e, + unsigned long n_bits, unsigned long *read_map, + unsigned long *write_map, + unsigned long *except_map, u32 * bits_set) { - svm_msg_q_msg_t *msg; - u32 n_msgs; - int i; + session_disconnected_msg_t *disconnected_msg; + session_connected_msg_t *connected_msg; + vcl_session_t *session; + u32 sid; - n_msgs = svm_msg_q_size (mq); - for (i = 0; i < n_msgs; i++) + switch (e->event_type) { - vec_add2 (vcm->mq_msg_vector, msg, 1); - svm_msg_q_sub_w_lock (mq, msg); + case SESSION_IO_EVT_RX: + sid = e->session_index; + session = vcl_session_get (wrk, sid); + if (!session) + break; + vcl_fifo_rx_evt_valid_or_break (session); + if (sid < n_bits && read_map) + { + clib_bitmap_set_no_check ((uword *) read_map, sid, 1); + *bits_set += 1; + } + break; + case SESSION_IO_EVT_TX: + sid = e->session_index; + session = vcl_session_get (wrk, sid); + if (!session) + break; + if (sid < n_bits && write_map) + { + clib_bitmap_set_no_check ((uword *) write_map, sid, 1); + *bits_set += 1; + } + break; + case SESSION_CTRL_EVT_ACCEPTED: + session = vcl_session_accepted (wrk, + (session_accepted_msg_t *) e->data); + if (!session) + break; + sid = session->session_index; + if (sid < n_bits && read_map) + { + clib_bitmap_set_no_check ((uword *) read_map, sid, 1); + *bits_set += 1; + } + break; + case SESSION_CTRL_EVT_CONNECTED: + connected_msg = (session_connected_msg_t *) e->data; + sid = vcl_session_connected_handler (wrk, connected_msg); + if (sid == VCL_INVALID_SESSION_INDEX) + break; + if (sid < n_bits && write_map) + { + clib_bitmap_set_no_check ((uword *) write_map, sid, 1); + *bits_set += 1; + } + break; + case SESSION_CTRL_EVT_DISCONNECTED: + disconnected_msg = (session_disconnected_msg_t *) e->data; + session = vcl_session_disconnected_handler (wrk, disconnected_msg); + if (!session) + break; + sid = session->session_index; + if (sid < n_bits && except_map) + { + clib_bitmap_set_no_check ((uword *) except_map, sid, 1); + *bits_set += 1; + } + break; + case SESSION_CTRL_EVT_RESET: + sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data); + if (sid < n_bits && except_map) + { + clib_bitmap_set_no_check ((uword *) except_map, sid, 1); + *bits_set += 1; + } + break; + case SESSION_CTRL_EVT_UNLISTEN_REPLY: + vcl_session_unlisten_reply_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_MIGRATED: + vcl_session_migrated_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_CLEANUP: + vcl_session_cleanup_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY: + vcl_session_worker_update_reply_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_REQ_WORKER_UPDATE: + vcl_session_req_worker_update_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_APP_ADD_SEGMENT: + vcl_session_app_add_segment_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_APP_DEL_SEGMENT: + vcl_session_app_del_segment_handler (wrk, e->data); + break; + default: + clib_warning ("unhandled: %u", e->event_type); + break; } - return n_msgs; } static int -vcl_select_handle_mq (svm_msg_q_t * mq, unsigned long n_bits, - unsigned long *read_map, unsigned long *write_map, - unsigned long *except_map, double time_to_wait, - u32 * bits_set) +vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq, + unsigned long n_bits, unsigned long *read_map, + unsigned long *write_map, unsigned long *except_map, + double time_to_wait, u32 * bits_set) { - session_disconnected_msg_t *disconnected_msg; - session_connected_msg_t *connected_msg; - session_accepted_msg_t *accepted_msg; - vcl_session_msg_t *vcl_msg; - vcl_session_t *session; svm_msg_q_msg_t *msg; session_event_t *e; - u32 i, sid; - u64 handle; + u32 i; svm_msg_q_lock (mq); if (svm_msg_q_is_empty (mq)) @@ -1674,156 +2263,71 @@ vcl_select_handle_mq (svm_msg_q_t * mq, unsigned long n_bits, } } } - vcl_mq_dequeue_batch (mq); + vcl_mq_dequeue_batch (wrk, mq, ~0); svm_msg_q_unlock (mq); - for (i = 0; i < vec_len (vcm->mq_msg_vector); i++) + for (i = 0; i < vec_len (wrk->mq_msg_vector); i++) { - msg = vec_elt_at_index (vcm->mq_msg_vector, i); + msg = vec_elt_at_index (wrk->mq_msg_vector, i); e = svm_msg_q_msg_data (mq, msg); - switch (e->event_type) - { - case FIFO_EVENT_APP_RX: - sid = e->fifo->client_session_index; - session = vcl_session_get (sid); - if (sid < n_bits && read_map) - { - clib_bitmap_set_no_check (read_map, sid, 1); - *bits_set += 1; - } - break; - case FIFO_EVENT_APP_TX: - sid = e->fifo->client_session_index; - session = vcl_session_get (sid); - if (!session) - break; - if (sid < n_bits && write_map) - { - clib_bitmap_set_no_check (write_map, sid, 1); - *bits_set += 1; - } - break; - case SESSION_IO_EVT_CT_TX: - session = vcl_ct_session_get_from_fifo (e->fifo, 0); - sid = vcl_session_index (session); - if (sid < n_bits && read_map) - { - clib_bitmap_set_no_check (read_map, sid, 1); - *bits_set += 1; - } - break; - break; - case SESSION_IO_EVT_CT_RX: - session = vcl_ct_session_get_from_fifo (e->fifo, 1); - sid = vcl_session_index (session); - if (!session) - break; - if (sid < n_bits && write_map) - { - clib_bitmap_set_no_check (write_map, sid, 1); - *bits_set += 1; - } - break; - case SESSION_CTRL_EVT_ACCEPTED: - accepted_msg = (session_accepted_msg_t *) e->data; - handle = accepted_msg->listener_handle; - session = vppcom_session_table_lookup_listener (handle); - if (!session) - { - clib_warning ("VCL<%d>: ERROR: couldn't find listen session:" - "listener handle %llx", getpid (), handle); - break; - } - - clib_fifo_add2 (session->accept_evts_fifo, vcl_msg); - vcl_msg->accepted_msg = *accepted_msg; - sid = session - vcm->sessions; - if (sid < n_bits && read_map) - { - clib_bitmap_set_no_check (read_map, sid, 1); - *bits_set += 1; - } - break; - case SESSION_CTRL_EVT_CONNECTED: - connected_msg = (session_connected_msg_t *) e->data; - vcl_session_connected_handler (connected_msg); - break; - case SESSION_CTRL_EVT_DISCONNECTED: - disconnected_msg = (session_disconnected_msg_t *) e->data; - sid = vcl_session_get_index_from_handle (disconnected_msg->handle); - if (sid < n_bits && except_map) - { - clib_bitmap_set_no_check (except_map, sid, 1); - *bits_set += 1; - } - break; - case SESSION_CTRL_EVT_RESET: - sid = vcl_session_reset_handler ((session_reset_msg_t *) e->data); - if (sid < n_bits && except_map) - { - clib_bitmap_set_no_check (except_map, sid, 1); - *bits_set += 1; - } - break; - default: - clib_warning ("unhandled: %u", e->event_type); - break; - } + vcl_select_handle_mq_event (wrk, e, n_bits, read_map, write_map, + except_map, bits_set); svm_msg_q_free_msg (mq, msg); } - - vec_reset_length (vcm->mq_msg_vector); + vec_reset_length (wrk->mq_msg_vector); + vcl_handle_pending_wrk_updates (wrk); return *bits_set; } static int -vppcom_select_condvar (unsigned long n_bits, unsigned long *read_map, - unsigned long *write_map, unsigned long *except_map, - double time_to_wait, u32 * bits_set) +vppcom_select_condvar (vcl_worker_t * wrk, int n_bits, + vcl_si_set * read_map, vcl_si_set * write_map, + vcl_si_set * except_map, double time_to_wait, + u32 * bits_set) { - double total_wait = 0, wait_slice; - vcl_cut_through_registration_t *cr; + double wait = 0, start = 0; - time_to_wait = (time_to_wait == -1) ? 10e9 : time_to_wait; - wait_slice = vcm->cut_through_registrations ? 10e-6 : time_to_wait; - do + if (!*bits_set) { - /* *INDENT-OFF* */ - pool_foreach (cr, vcm->cut_through_registrations, ({ - vcl_select_handle_mq (cr->mq, n_bits, read_map, write_map, except_map, - 0, bits_set); - })); - /* *INDENT-ON* */ + wait = time_to_wait; + start = clib_time_now (&wrk->clib_time); + } - vcl_select_handle_mq (vcm->app_event_queue, n_bits, read_map, write_map, - except_map, time_to_wait, bits_set); - total_wait += wait_slice; + do + { + vcl_select_handle_mq (wrk, wrk->app_event_queue, n_bits, read_map, + write_map, except_map, wait, bits_set); if (*bits_set) return *bits_set; + if (wait == -1) + continue; + + wait = wait - (clib_time_now (&wrk->clib_time) - start); } - while (total_wait < time_to_wait); + while (wait > 0); return 0; } static int -vppcom_select_eventfd (unsigned long n_bits, unsigned long *read_map, - unsigned long *write_map, unsigned long *except_map, - double time_to_wait, u32 * bits_set) +vppcom_select_eventfd (vcl_worker_t * wrk, int n_bits, + vcl_si_set * read_map, vcl_si_set * write_map, + vcl_si_set * except_map, double time_to_wait, + u32 * bits_set) { vcl_mq_evt_conn_t *mqc; int __clib_unused n_read; int n_mq_evts, i; u64 buf; - vec_validate (vcm->mq_events, pool_elts (vcm->mq_evt_conns)); - n_mq_evts = epoll_wait (vcm->mqs_epfd, vcm->mq_events, - vec_len (vcm->mq_events), time_to_wait); + vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns)); + n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events, + vec_len (wrk->mq_events), time_to_wait); for (i = 0; i < n_mq_evts; i++) { - mqc = vcl_mq_evt_conn_get (vcm->mq_events[i].data.u32); + mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32); n_read = read (mqc->mq_fd, &buf, sizeof (buf)); - vcl_select_handle_mq (mqc->mq, n_bits, read_map, write_map, + vcl_select_handle_mq (wrk, mqc->mq, n_bits, read_map, write_map, except_map, 0, bits_set); } @@ -1831,38 +2335,34 @@ vppcom_select_eventfd (unsigned long n_bits, unsigned long *read_map, } int -vppcom_select (unsigned long n_bits, unsigned long *read_map, - unsigned long *write_map, unsigned long *except_map, - double time_to_wait) +vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map, + vcl_si_set * except_map, double time_to_wait) { u32 sid, minbits = clib_max (n_bits, BITS (uword)), bits_set = 0; + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *session = 0; - int rv; - - ASSERT (sizeof (clib_bitmap_t) == sizeof (long int)); + int rv, i; if (n_bits && read_map) { - clib_bitmap_validate (vcm->rd_bitmap, minbits); - clib_memcpy (vcm->rd_bitmap, read_map, - vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t)); - memset (read_map, 0, vec_len (vcm->rd_bitmap) * sizeof (clib_bitmap_t)); + clib_bitmap_validate (wrk->rd_bitmap, minbits); + clib_memcpy_fast (wrk->rd_bitmap, read_map, + vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set)); + memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (vcl_si_set)); } if (n_bits && write_map) { - clib_bitmap_validate (vcm->wr_bitmap, minbits); - clib_memcpy (vcm->wr_bitmap, write_map, - vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t)); - memset (write_map, 0, - vec_len (vcm->wr_bitmap) * sizeof (clib_bitmap_t)); + clib_bitmap_validate (wrk->wr_bitmap, minbits); + clib_memcpy_fast (wrk->wr_bitmap, write_map, + vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set)); + memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (vcl_si_set)); } if (n_bits && except_map) { - clib_bitmap_validate (vcm->ex_bitmap, minbits); - clib_memcpy (vcm->ex_bitmap, except_map, - vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t)); - memset (except_map, 0, - vec_len (vcm->ex_bitmap) * sizeof (clib_bitmap_t)); + clib_bitmap_validate (wrk->ex_bitmap, minbits); + clib_memcpy_fast (wrk->ex_bitmap, except_map, + vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set)); + memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (vcl_si_set)); } if (!n_bits) @@ -1872,38 +2372,40 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, goto check_rd; /* *INDENT-OFF* */ - clib_bitmap_foreach (sid, vcm->wr_bitmap, ({ - if (!(session = vcl_session_get (sid))) + clib_bitmap_foreach (sid, wrk->wr_bitmap, ({ + if (!(session = vcl_session_get (wrk, sid))) { - VDBG (0, "VCL<%d>: session %d specified in write_map is closed.", - getpid (), sid); - return VPPCOM_EBADFD; + if (except_map && sid < minbits) + clib_bitmap_set_no_check (except_map, sid, 1); + continue; } - rv = svm_fifo_is_full (session->tx_fifo); + rv = svm_fifo_is_full_prod (session->tx_fifo); if (!rv) { - clib_bitmap_set_no_check (write_map, sid, 1); + clib_bitmap_set_no_check ((uword*)write_map, sid, 1); bits_set++; } + else + svm_fifo_add_want_deq_ntf (session->tx_fifo, SVM_FIFO_WANT_DEQ_NOTIF); })); check_rd: if (!read_map) goto check_mq; - clib_bitmap_foreach (sid, vcm->rd_bitmap, ({ - if (!(session = vcl_session_get (sid))) + clib_bitmap_foreach (sid, wrk->rd_bitmap, ({ + if (!(session = vcl_session_get (wrk, sid))) { - VDBG (0, "VCL<%d>: session %d specified in write_map is closed.", - getpid (), sid); - return VPPCOM_EBADFD; + if (except_map && sid < minbits) + clib_bitmap_set_no_check (except_map, sid, 1); + continue; } - rv = vppcom_session_read_ready (session); + rv = vcl_session_read_ready (session); if (rv) { - clib_bitmap_set_no_check (read_map, sid, 1); + clib_bitmap_set_no_check ((uword*)read_map, sid, 1); bits_set++; } })); @@ -1911,164 +2413,154 @@ check_rd: check_mq: + for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++) + { + vcl_select_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], n_bits, + read_map, write_map, except_map, &bits_set); + } + vec_reset_length (wrk->unhandled_evts_vector); + if (vcm->cfg.use_mq_eventfd) - vppcom_select_eventfd (n_bits, read_map, write_map, except_map, + vppcom_select_eventfd (wrk, n_bits, read_map, write_map, except_map, time_to_wait, &bits_set); else - vppcom_select_condvar (n_bits, read_map, write_map, except_map, + vppcom_select_condvar (wrk, n_bits, read_map, write_map, except_map, time_to_wait, &bits_set); return (bits_set); } static inline void -vep_verify_epoll_chain (u32 vep_idx) +vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle) { vcl_session_t *session; vppcom_epoll_t *vep; - u32 sid = vep_idx; + u32 sh = vep_handle; - if (VPPCOM_DEBUG <= 1) + if (VPPCOM_DEBUG <= 2) return; - /* Assumes caller has acquired spinlock: vcm->sessions_lockp */ - session = vcl_session_get (vep_idx); + session = vcl_session_get_w_handle (wrk, vep_handle); if (PREDICT_FALSE (!session)) { - clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", - getpid (), vep_idx); + VDBG (0, "ERROR: Invalid vep_sh (%u)!", vep_handle); goto done; } if (PREDICT_FALSE (!session->is_vep)) { - clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!", - getpid (), vep_idx); + VDBG (0, "ERROR: vep_sh (%u) is not a vep!", vep_handle); goto done; } vep = &session->vep; - clib_warning ("VCL<%d>: vep_idx (%u): Dumping epoll chain\n" - "{\n" - " is_vep = %u\n" - " is_vep_session = %u\n" - " next_sid = 0x%x (%u)\n" - " wait_cont_idx = 0x%x (%u)\n" - "}\n", getpid (), vep_idx, - session->is_vep, session->is_vep_session, - vep->next_sid, vep->next_sid, - session->wait_cont_idx, session->wait_cont_idx); - - for (sid = vep->next_sid; sid != ~0; sid = vep->next_sid) - { - session = vcl_session_get (sid); + VDBG (0, "vep_sh (%u): Dumping epoll chain\n" + "{\n" + " is_vep = %u\n" + " is_vep_session = %u\n" + " next_sh = 0x%x (%u)\n" + "}\n", vep_handle, session->is_vep, session->is_vep_session, + vep->next_sh, vep->next_sh); + + for (sh = vep->next_sh; sh != ~0; sh = vep->next_sh) + { + session = vcl_session_get_w_handle (wrk, sh); if (PREDICT_FALSE (!session)) { - clib_warning ("VCL<%d>: ERROR: Invalid sid (%u)!", getpid (), sid); + VDBG (0, "ERROR: Invalid sh (%u)!", sh); goto done; } if (PREDICT_FALSE (session->is_vep)) - clib_warning ("VCL<%d>: ERROR: sid (%u) is a vep!", - getpid (), vep_idx); + { + VDBG (0, "ERROR: sh (%u) is a vep!", vep_handle); + } else if (PREDICT_FALSE (!session->is_vep_session)) { - clib_warning ("VCL<%d>: ERROR: session (%u) " - "is not a vep session!", getpid (), sid); + VDBG (0, "ERROR: sh (%u) is not a vep session handle!", sh); goto done; } vep = &session->vep; - if (PREDICT_FALSE (vep->vep_idx != vep_idx)) - clib_warning ("VCL<%d>: ERROR: session (%u) vep_idx (%u) != " - "vep_idx (%u)!", getpid (), - sid, session->vep.vep_idx, vep_idx); + if (PREDICT_FALSE (vep->vep_sh != vep_handle)) + VDBG (0, "ERROR: session (%u) vep_sh (%u) != vep_sh (%u)!", + sh, session->vep.vep_sh, vep_handle); if (session->is_vep_session) { - clib_warning ("vep_idx[%u]: sid 0x%x (%u)\n" - "{\n" - " next_sid = 0x%x (%u)\n" - " prev_sid = 0x%x (%u)\n" - " vep_idx = 0x%x (%u)\n" - " ev.events = 0x%x\n" - " ev.data.u64 = 0x%llx\n" - " et_mask = 0x%x\n" - "}\n", - vep_idx, sid, sid, - vep->next_sid, vep->next_sid, - vep->prev_sid, vep->prev_sid, - vep->vep_idx, vep->vep_idx, - vep->ev.events, vep->ev.data.u64, vep->et_mask); + VDBG (0, "vep_sh[%u]: sh 0x%x (%u)\n" + "{\n" + " next_sh = 0x%x (%u)\n" + " prev_sh = 0x%x (%u)\n" + " vep_sh = 0x%x (%u)\n" + " ev.events = 0x%x\n" + " ev.data.u64 = 0x%llx\n" + " et_mask = 0x%x\n" + "}\n", + vep_handle, sh, sh, vep->next_sh, vep->next_sh, vep->prev_sh, + vep->prev_sh, vep->vep_sh, vep->vep_sh, vep->ev.events, + vep->ev.data.u64, vep->et_mask); } } done: - clib_warning ("VCL<%d>: vep_idx (%u): Dump complete!\n", - getpid (), vep_idx); + VDBG (0, "vep_sh (%u): Dump complete!\n", vep_handle); } int vppcom_epoll_create (void) { + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *vep_session; - u32 vep_idx; - pool_get (vcm->sessions, vep_session); - memset (vep_session, 0, sizeof (*vep_session)); - vep_idx = vep_session - vcm->sessions; + vep_session = vcl_session_alloc (wrk); vep_session->is_vep = 1; - vep_session->vep.vep_idx = ~0; - vep_session->vep.next_sid = ~0; - vep_session->vep.prev_sid = ~0; - vep_session->wait_cont_idx = ~0; + vep_session->vep.vep_sh = ~0; + vep_session->vep.next_sh = ~0; + vep_session->vep.prev_sh = ~0; vep_session->vpp_handle = ~0; - vep_session->poll_reg = 0; - vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_idx); - VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!", - getpid (), vep_idx, vep_idx); + vcl_evt (VCL_EVT_EPOLL_CREATE, vep_session, vep_session->session_index); + VDBG (0, "Created vep_idx %u", vep_session->session_index); - return (vep_idx); + return vcl_session_handle (vep_session); } int -vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, +vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, struct epoll_event *event) { + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *vep_session; vcl_session_t *session; int rv = VPPCOM_OK; - if (vep_idx == session_index) + if (vep_handle == session_handle) { - clib_warning ("VCL<%d>: ERROR: vep_idx == session_index (%u)!", - getpid (), vep_idx); + VDBG (0, "vep_sh == session handle (%u)!", vep_handle); return VPPCOM_EINVAL; } - vep_session = vcl_session_get (vep_idx); + vep_session = vcl_session_get_w_handle (wrk, vep_handle); if (PREDICT_FALSE (!vep_session)) { - clib_warning ("VCL<%d>: ERROR: Invalid vep_idx (%u)!", vep_idx); + VDBG (0, "Invalid vep_sh (%u)!", vep_handle); return VPPCOM_EBADFD; } if (PREDICT_FALSE (!vep_session->is_vep)) { - clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!", - getpid (), vep_idx); + VDBG (0, "vep_sh (%u) is not a vep!", vep_handle); return VPPCOM_EINVAL; } - ASSERT (vep_session->vep.vep_idx == ~0); - ASSERT (vep_session->vep.prev_sid == ~0); + ASSERT (vep_session->vep.vep_sh == ~0); + ASSERT (vep_session->vep.prev_sh == ~0); - session = vcl_session_get (session_index); + session = vcl_session_get_w_handle (wrk, session_handle); if (PREDICT_FALSE (!session)) { - VDBG (0, "VCL<%d>: ERROR: Invalid session_index (%u)!", - getpid (), session_index); + VDBG (0, "Invalid session_handle (%u)!", session_handle); return VPPCOM_EBADFD; } if (PREDICT_FALSE (session->is_vep)) { - clib_warning ("ERROR: session_index (%u) is a vep!", vep_idx); + VDBG (0, "session_handle (%u) is a vep!", vep_handle); return VPPCOM_EINVAL; } @@ -2077,160 +2569,300 @@ vppcom_epoll_ctl (uint32_t vep_idx, int op, uint32_t session_index, case EPOLL_CTL_ADD: if (PREDICT_FALSE (!event)) { - clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: NULL pointer to " - "epoll_event structure!", getpid ()); + VDBG (0, "EPOLL_CTL_ADD: NULL pointer to epoll_event structure!"); return VPPCOM_EINVAL; } - if (vep_session->vep.next_sid != ~0) + if (vep_session->vep.next_sh != ~0) { vcl_session_t *next_session; - next_session = vcl_session_get (vep_session->vep.next_sid); + next_session = vcl_session_get_w_handle (wrk, + vep_session->vep.next_sh); if (PREDICT_FALSE (!next_session)) { - clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_ADD: Invalid " - "vep.next_sid (%u) on vep_idx (%u)!", - getpid (), vep_session->vep.next_sid, vep_idx); + VDBG (0, "EPOLL_CTL_ADD: Invalid vep.next_sh (%u) on " + "vep_idx (%u)!", vep_session->vep.next_sh, vep_handle); return VPPCOM_EBADFD; } - ASSERT (next_session->vep.prev_sid == vep_idx); - next_session->vep.prev_sid = session_index; + ASSERT (next_session->vep.prev_sh == vep_handle); + next_session->vep.prev_sh = session_handle; } - session->vep.next_sid = vep_session->vep.next_sid; - session->vep.prev_sid = vep_idx; - session->vep.vep_idx = vep_idx; + session->vep.next_sh = vep_session->vep.next_sh; + session->vep.prev_sh = vep_handle; + session->vep.vep_sh = vep_handle; session->vep.et_mask = VEP_DEFAULT_ET_MASK; session->vep.ev = *event; session->is_vep = 0; session->is_vep_session = 1; - vep_session->vep.next_sid = session_index; + vep_session->vep.next_sh = session_handle; - VDBG (1, "VCL<%d>: EPOLL_CTL_ADD: vep_idx %u, sid %u, events 0x%x, " - "data 0x%llx!", getpid (), vep_idx, session_index, event->events, - event->data.u64); + if (session->tx_fifo) + svm_fifo_add_want_deq_ntf (session->tx_fifo, + SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + + /* Generate EPOLLOUT if tx fifo not full */ + if ((event->events & EPOLLOUT) && + (vcl_session_write_ready (session) > 0)) + { + session_event_t e = { 0 }; + e.event_type = SESSION_IO_EVT_TX; + e.session_index = session->session_index; + vec_add1 (wrk->unhandled_evts_vector, e); + } + /* Generate EPOLLIN if rx fifo has data */ + if ((event->events & EPOLLIN) && (vcl_session_read_ready (session) > 0)) + { + session_event_t e = { 0 }; + e.event_type = SESSION_IO_EVT_RX; + e.session_index = session->session_index; + vec_add1 (wrk->unhandled_evts_vector, e); + } + VDBG (1, "EPOLL_CTL_ADD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!", + vep_handle, session_handle, event->events, event->data.u64); vcl_evt (VCL_EVT_EPOLL_CTLADD, session, event->events, event->data.u64); break; case EPOLL_CTL_MOD: if (PREDICT_FALSE (!event)) { - clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_MOD: NULL pointer to " - "epoll_event structure!", getpid ()); + VDBG (0, "EPOLL_CTL_MOD: NULL pointer to epoll_event structure!"); rv = VPPCOM_EINVAL; goto done; } else if (PREDICT_FALSE (!session->is_vep_session)) { - clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: " - "not a vep session!", getpid (), session_index); + VDBG (0, "sh %u EPOLL_CTL_MOD: not a vep session!", session_handle); rv = VPPCOM_EINVAL; goto done; } - else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx)) + else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle)) { - clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_MOD: " - "vep_idx (%u) != vep_idx (%u)!", - getpid (), session_index, - session->vep.vep_idx, vep_idx); + VDBG (0, "EPOLL_CTL_MOD: sh %u vep_sh (%u) != vep_sh (%u)!", + session_handle, session->vep.vep_sh, vep_handle); rv = VPPCOM_EINVAL; goto done; } + + /* Generate EPOLLOUT when tx_fifo/ct_tx_fifo not full */ + if ((event->events & EPOLLOUT) && + !(session->vep.ev.events & EPOLLOUT) && + (vcl_session_write_ready (session) > 0)) + { + session_event_t e = { 0 }; + e.event_type = SESSION_IO_EVT_TX; + e.session_index = session->session_index; + vec_add1 (wrk->unhandled_evts_vector, e); + } session->vep.et_mask = VEP_DEFAULT_ET_MASK; session->vep.ev = *event; - VDBG (1, "VCL<%d>: EPOLL_CTL_MOD: vep_idx %u, sid %u, events 0x%x," - " data 0x%llx!", getpid (), vep_idx, session_index, event->events, - event->data.u64); + VDBG (1, "EPOLL_CTL_MOD: vep_sh %u, sh %u, events 0x%x, data 0x%llx!", + vep_handle, session_handle, event->events, event->data.u64); break; case EPOLL_CTL_DEL: if (PREDICT_FALSE (!session->is_vep_session)) { - clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: " - "not a vep session!", getpid (), session_index); + VDBG (0, "EPOLL_CTL_DEL: %u not a vep session!", session_handle); rv = VPPCOM_EINVAL; goto done; } - else if (PREDICT_FALSE (session->vep.vep_idx != vep_idx)) + else if (PREDICT_FALSE (session->vep.vep_sh != vep_handle)) { - clib_warning ("VCL<%d>: ERROR: sid %u EPOLL_CTL_DEL: " - "vep_idx (%u) != vep_idx (%u)!", - getpid (), session_index, - session->vep.vep_idx, vep_idx); + VDBG (0, "EPOLL_CTL_DEL: sh %u vep_sh (%u) != vep_sh (%u)!", + session_handle, session->vep.vep_sh, vep_handle); rv = VPPCOM_EINVAL; goto done; } - vep_session->wait_cont_idx = - (vep_session->wait_cont_idx == session_index) ? - session->vep.next_sid : vep_session->wait_cont_idx; - - if (session->vep.prev_sid == vep_idx) - vep_session->vep.next_sid = session->vep.next_sid; + if (session->vep.prev_sh == vep_handle) + vep_session->vep.next_sh = session->vep.next_sh; else { vcl_session_t *prev_session; - prev_session = vcl_session_get (session->vep.prev_sid); + prev_session = vcl_session_get_w_handle (wrk, session->vep.prev_sh); if (PREDICT_FALSE (!prev_session)) { - clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid " - "vep.prev_sid (%u) on sid (%u)!", - getpid (), session->vep.prev_sid, session_index); + VDBG (0, "EPOLL_CTL_DEL: Invalid prev_sh (%u) on sh (%u)!", + session->vep.prev_sh, session_handle); return VPPCOM_EBADFD; } - ASSERT (prev_session->vep.next_sid == session_index); - prev_session->vep.next_sid = session->vep.next_sid; + ASSERT (prev_session->vep.next_sh == session_handle); + prev_session->vep.next_sh = session->vep.next_sh; } - if (session->vep.next_sid != ~0) + if (session->vep.next_sh != ~0) { vcl_session_t *next_session; - next_session = vcl_session_get (session->vep.next_sid); + next_session = vcl_session_get_w_handle (wrk, session->vep.next_sh); if (PREDICT_FALSE (!next_session)) { - clib_warning ("VCL<%d>: ERROR: EPOLL_CTL_DEL: Invalid " - "vep.next_sid (%u) on sid (%u)!", - getpid (), session->vep.next_sid, session_index); + VDBG (0, "EPOLL_CTL_DEL: Invalid next_sh (%u) on sh (%u)!", + session->vep.next_sh, session_handle); return VPPCOM_EBADFD; } - ASSERT (next_session->vep.prev_sid == session_index); - next_session->vep.prev_sid = session->vep.prev_sid; + ASSERT (next_session->vep.prev_sh == session_handle); + next_session->vep.prev_sh = session->vep.prev_sh; } memset (&session->vep, 0, sizeof (session->vep)); - session->vep.next_sid = ~0; - session->vep.prev_sid = ~0; - session->vep.vep_idx = ~0; + session->vep.next_sh = ~0; + session->vep.prev_sh = ~0; + session->vep.vep_sh = ~0; session->is_vep_session = 0; - VDBG (1, "VCL<%d>: EPOLL_CTL_DEL: vep_idx %u, sid %u!", - getpid (), vep_idx, session_index); - vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_idx); + + if (session->tx_fifo) + svm_fifo_del_want_deq_ntf (session->tx_fifo, SVM_FIFO_NO_DEQ_NOTIF); + + VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle, + session_handle); + vcl_evt (VCL_EVT_EPOLL_CTLDEL, session, vep_sh); break; default: - clib_warning ("VCL<%d>: ERROR: Invalid operation (%d)!", getpid (), op); + VDBG (0, "Invalid operation (%d)!", op); rv = VPPCOM_EINVAL; } - vep_verify_epoll_chain (vep_idx); + vep_verify_epoll_chain (wrk, vep_handle); done: return rv; } -static int -vcl_epoll_wait_handle_mq (svm_msg_q_t * mq, struct epoll_event *events, - u32 maxevents, double wait_for_time, u32 * num_ev) +static inline void +vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e, + struct epoll_event *events, u32 * num_ev) { session_disconnected_msg_t *disconnected_msg; session_connected_msg_t *connected_msg; - session_accepted_msg_t *accepted_msg; - u64 session_evt_data = ~0, handle; u32 sid = ~0, session_events; - vcl_session_msg_t *vcl_msg; + u64 session_evt_data = ~0; vcl_session_t *session; + u8 add_event = 0; + + switch (e->event_type) + { + case SESSION_IO_EVT_RX: + sid = e->session_index; + if (!(session = vcl_session_get (wrk, sid))) + break; + vcl_fifo_rx_evt_valid_or_break (session); + session_events = session->vep.ev.events; + if (!(EPOLLIN & session->vep.ev.events) || session->has_rx_evt) + break; + add_event = 1; + events[*num_ev].events |= EPOLLIN; + session_evt_data = session->vep.ev.data.u64; + session->has_rx_evt = 1; + break; + case SESSION_IO_EVT_TX: + sid = e->session_index; + if (!(session = vcl_session_get (wrk, sid))) + break; + session_events = session->vep.ev.events; + if (!(EPOLLOUT & session_events)) + break; + add_event = 1; + events[*num_ev].events |= EPOLLOUT; + session_evt_data = session->vep.ev.data.u64; + svm_fifo_reset_has_deq_ntf (session->tx_fifo); + break; + case SESSION_CTRL_EVT_ACCEPTED: + session = vcl_session_accepted (wrk, + (session_accepted_msg_t *) e->data); + if (!session) + break; + + session_events = session->vep.ev.events; + if (!(EPOLLIN & session_events)) + break; + + add_event = 1; + events[*num_ev].events |= EPOLLIN; + session_evt_data = session->vep.ev.data.u64; + break; + case SESSION_CTRL_EVT_CONNECTED: + connected_msg = (session_connected_msg_t *) e->data; + sid = vcl_session_connected_handler (wrk, connected_msg); + /* Generate EPOLLOUT because there's no connected event */ + if (!(session = vcl_session_get (wrk, sid))) + break; + session_events = session->vep.ev.events; + if (!(EPOLLOUT & session_events)) + break; + add_event = 1; + events[*num_ev].events |= EPOLLOUT; + session_evt_data = session->vep.ev.data.u64; + if (session->session_state & STATE_DETACHED) + events[*num_ev].events |= EPOLLHUP; + break; + case SESSION_CTRL_EVT_DISCONNECTED: + disconnected_msg = (session_disconnected_msg_t *) e->data; + session = vcl_session_disconnected_handler (wrk, disconnected_msg); + if (!session) + break; + session_events = session->vep.ev.events; + add_event = 1; + events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP; + session_evt_data = session->vep.ev.data.u64; + break; + case SESSION_CTRL_EVT_RESET: + sid = vcl_session_reset_handler (wrk, (session_reset_msg_t *) e->data); + if (!(session = vcl_session_get (wrk, sid))) + break; + session_events = session->vep.ev.events; + add_event = 1; + events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP; + session_evt_data = session->vep.ev.data.u64; + break; + case SESSION_CTRL_EVT_UNLISTEN_REPLY: + vcl_session_unlisten_reply_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_MIGRATED: + vcl_session_migrated_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_CLEANUP: + vcl_session_cleanup_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_REQ_WORKER_UPDATE: + vcl_session_req_worker_update_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_WORKER_UPDATE_REPLY: + vcl_session_worker_update_reply_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_APP_ADD_SEGMENT: + vcl_session_app_add_segment_handler (wrk, e->data); + break; + case SESSION_CTRL_EVT_APP_DEL_SEGMENT: + vcl_session_app_del_segment_handler (wrk, e->data); + break; + default: + VDBG (0, "unhandled: %u", e->event_type); + break; + } + + if (add_event) + { + events[*num_ev].data.u64 = session_evt_data; + if (EPOLLONESHOT & session_events) + { + session = vcl_session_get (wrk, sid); + session->vep.ev.events = 0; + } + *num_ev += 1; + } +} + +static int +vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq, + struct epoll_event *events, u32 maxevents, + double wait_for_time, u32 * num_ev) +{ svm_msg_q_msg_t *msg; session_event_t *e; - u8 add_event; int i; + if (vec_len (wrk->mq_msg_vector) && svm_msg_q_is_empty (mq)) + goto handle_dequeued; + svm_msg_q_lock (mq); if (svm_msg_q_is_empty (mq)) { @@ -2252,243 +2884,154 @@ vcl_epoll_wait_handle_mq (svm_msg_q_t * mq, struct epoll_event *events, } } } - vcl_mq_dequeue_batch (mq); + ASSERT (maxevents > *num_ev); + vcl_mq_dequeue_batch (wrk, mq, maxevents - *num_ev); svm_msg_q_unlock (mq); - for (i = 0; i < vec_len (vcm->mq_msg_vector); i++) +handle_dequeued: + for (i = 0; i < vec_len (wrk->mq_msg_vector); i++) { - msg = vec_elt_at_index (vcm->mq_msg_vector, i); + msg = vec_elt_at_index (wrk->mq_msg_vector, i); e = svm_msg_q_msg_data (mq, msg); - add_event = 0; - switch (e->event_type) - { - case FIFO_EVENT_APP_RX: - sid = e->fifo->client_session_index; - session = vcl_session_get (sid); - session_events = session->vep.ev.events; - if (!(EPOLLIN & session->vep.ev.events)) - break; - add_event = 1; - events[*num_ev].events |= EPOLLIN; - session_evt_data = session->vep.ev.data.u64; - break; - case FIFO_EVENT_APP_TX: - sid = e->fifo->client_session_index; - session = vcl_session_get (sid); - session_events = session->vep.ev.events; - if (!(EPOLLOUT & session_events)) - break; - add_event = 1; - events[*num_ev].events |= EPOLLOUT; - session_evt_data = session->vep.ev.data.u64; - break; - case SESSION_IO_EVT_CT_TX: - session = vcl_ct_session_get_from_fifo (e->fifo, 0); - sid = vcl_session_index (session); - session_events = session->vep.ev.events; - if (!(EPOLLIN & session->vep.ev.events)) - break; - add_event = 1; - events[*num_ev].events |= EPOLLIN; - session_evt_data = session->vep.ev.data.u64; - break; - case SESSION_IO_EVT_CT_RX: - session = vcl_ct_session_get_from_fifo (e->fifo, 1); - sid = vcl_session_index (session); - session_events = session->vep.ev.events; - if (!(EPOLLOUT & session_events)) - break; - add_event = 1; - events[*num_ev].events |= EPOLLOUT; - session_evt_data = session->vep.ev.data.u64; - break; - case SESSION_CTRL_EVT_ACCEPTED: - accepted_msg = (session_accepted_msg_t *) e->data; - handle = accepted_msg->listener_handle; - session = vppcom_session_table_lookup_listener (handle); - if (!session) - { - clib_warning ("VCL<%d>: ERROR: couldn't find listen session:" - "listener handle %llx", getpid (), handle); - break; - } - - clib_fifo_add2 (session->accept_evts_fifo, vcl_msg); - vcl_msg->accepted_msg = *accepted_msg; - session_events = session->vep.ev.events; - if (!(EPOLLIN & session_events)) - break; - - add_event = 1; - events[*num_ev].events |= EPOLLIN; - session_evt_data = session->vep.ev.data.u64; - break; - case SESSION_CTRL_EVT_CONNECTED: - connected_msg = (session_connected_msg_t *) e->data; - vcl_session_connected_handler (connected_msg); - /* Generate EPOLLOUT because there's no connected event */ - sid = vcl_session_get_index_from_handle (connected_msg->handle); - session = vcl_session_get (sid); - session_events = session->vep.ev.events; - if (EPOLLOUT & session_events) - { - add_event = 1; - events[*num_ev].events |= EPOLLOUT; - session_evt_data = session->vep.ev.data.u64; - } - break; - case SESSION_CTRL_EVT_DISCONNECTED: - disconnected_msg = (session_disconnected_msg_t *) e->data; - sid = vcl_session_get_index_from_handle (disconnected_msg->handle); - if (!(session = vcl_session_get (sid))) - break; - add_event = 1; - events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP; - session_evt_data = session->vep.ev.data.u64; - session_events = session->vep.ev.events; - break; - case SESSION_CTRL_EVT_RESET: - sid = vcl_session_reset_handler ((session_reset_msg_t *) e->data); - if (!(session = vcl_session_get (sid))) - break; - add_event = 1; - events[*num_ev].events |= EPOLLHUP | EPOLLRDHUP; - session_evt_data = session->vep.ev.data.u64; - session_events = session->vep.ev.events; - break; - default: - clib_warning ("unhandled: %u", e->event_type); - svm_msg_q_free_msg (mq, msg); - continue; - } + vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev); svm_msg_q_free_msg (mq, msg); - - if (add_event) - { - events[*num_ev].data.u64 = session_evt_data; - if (EPOLLONESHOT & session_events) - { - session = vcl_session_get (sid); - session->vep.ev.events = 0; - } - *num_ev += 1; - if (*num_ev == maxevents) - break; - } } - - vec_reset_length (vcm->mq_msg_vector); + vec_reset_length (wrk->mq_msg_vector); + vcl_handle_pending_wrk_updates (wrk); return *num_ev; } static int -vppcom_epoll_wait_condvar (struct epoll_event *events, int maxevents, - double wait_for_time) +vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events, + int maxevents, u32 n_evts, double wait_for_time) { - vcl_cut_through_registration_t *cr; - double total_wait = 0, wait_slice; - u32 num_ev = 0; - int rv; + double wait = 0, start = 0, now; - wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time; - wait_slice = vcm->cut_through_registrations ? 10e-6 : wait_for_time; + if (!n_evts) + { + wait = wait_for_time; + start = clib_time_now (&wrk->clib_time); + } do { - /* *INDENT-OFF* */ - pool_foreach (cr, vcm->cut_through_registrations, ({ - vcl_epoll_wait_handle_mq (cr->mq, events, maxevents, 0, &num_ev); - })); - /* *INDENT-ON* */ + vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, maxevents, + wait, &n_evts); + if (n_evts) + return n_evts; + if (wait == -1) + continue; - rv = vcl_epoll_wait_handle_mq (vcm->app_event_queue, events, maxevents, - num_ev ? 0 : wait_slice, &num_ev); - if (rv) - total_wait += wait_slice; - if (num_ev) - return num_ev; + now = clib_time_now (&wrk->clib_time); + wait -= now - start; + start = now; } - while (total_wait < wait_for_time); - return (int) num_ev; + while (wait > 0); + + return 0; } static int -vppcom_epoll_wait_eventfd (struct epoll_event *events, int maxevents, - double wait_for_time) +vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events, + int maxevents, u32 n_evts, double wait_for_time) { vcl_mq_evt_conn_t *mqc; int __clib_unused n_read; int n_mq_evts, i; - u32 n_evts = 0; u64 buf; - vec_validate (vcm->mq_events, pool_elts (vcm->mq_evt_conns)); - n_mq_evts = epoll_wait (vcm->mqs_epfd, vcm->mq_events, - vec_len (vcm->mq_events), wait_for_time); + vec_validate (wrk->mq_events, pool_elts (wrk->mq_evt_conns)); +again: + n_mq_evts = epoll_wait (wrk->mqs_epfd, wrk->mq_events, + vec_len (wrk->mq_events), wait_for_time); for (i = 0; i < n_mq_evts; i++) { - mqc = vcl_mq_evt_conn_get (vcm->mq_events[i].data.u32); + mqc = vcl_mq_evt_conn_get (wrk, wrk->mq_events[i].data.u32); n_read = read (mqc->mq_fd, &buf, sizeof (buf)); - vcl_epoll_wait_handle_mq (mqc->mq, events, maxevents, 0, &n_evts); + vcl_epoll_wait_handle_mq (wrk, mqc->mq, events, maxevents, 0, &n_evts); } + if (!n_evts && n_mq_evts > 0) + goto again; return (int) n_evts; } int -vppcom_epoll_wait (uint32_t vep_idx, struct epoll_event *events, +vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events, int maxevents, double wait_for_time) { + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *vep_session; + u32 n_evts = 0; + int i; if (PREDICT_FALSE (maxevents <= 0)) { - clib_warning ("VCL<%d>: ERROR: Invalid maxevents (%d)!", - getpid (), maxevents); + VDBG (0, "ERROR: Invalid maxevents (%d)!", maxevents); return VPPCOM_EINVAL; } - vep_session = vcl_session_get (vep_idx); + vep_session = vcl_session_get_w_handle (wrk, vep_handle); + if (!vep_session) + return VPPCOM_EBADFD; + if (PREDICT_FALSE (!vep_session->is_vep)) { - clib_warning ("VCL<%d>: ERROR: vep_idx (%u) is not a vep!", - getpid (), vep_idx); + VDBG (0, "ERROR: vep_idx (%u) is not a vep!", vep_handle); return VPPCOM_EINVAL; } memset (events, 0, sizeof (*events) * maxevents); + if (vec_len (wrk->unhandled_evts_vector)) + { + for (i = 0; i < vec_len (wrk->unhandled_evts_vector); i++) + { + vcl_epoll_wait_handle_mq_event (wrk, &wrk->unhandled_evts_vector[i], + events, &n_evts); + if (n_evts == maxevents) + { + vec_delete (wrk->unhandled_evts_vector, i + 1, 0); + return n_evts; + } + } + vec_reset_length (wrk->unhandled_evts_vector); + } + if (vcm->cfg.use_mq_eventfd) - return vppcom_epoll_wait_eventfd (events, maxevents, wait_for_time); + return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts, + wait_for_time); - return vppcom_epoll_wait_condvar (events, maxevents, wait_for_time); + return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts, + wait_for_time); } int -vppcom_session_attr (uint32_t session_index, uint32_t op, +vppcom_session_attr (uint32_t session_handle, uint32_t op, void *buffer, uint32_t * buflen) { + vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *session; int rv = VPPCOM_OK; - u32 *flags = buffer; + u32 *flags = buffer, tmp_flags = 0; vppcom_endpt_t *ep = buffer; - session = vcl_session_get (session_index); + session = vcl_session_get_w_handle (wrk, session_handle); if (!session) return VPPCOM_EBADFD; switch (op) { case VPPCOM_ATTR_GET_NREAD: - rv = vppcom_session_read_ready (session); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NREAD: sid %u, nread = %d", - getpid (), rv); + rv = vcl_session_read_ready (session); + VDBG (2, "VPPCOM_ATTR_GET_NREAD: sh %u, nread = %d", session_handle, + rv); break; case VPPCOM_ATTR_GET_NWRITE: - rv = vppcom_session_write_ready (session, session_index); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_NWRITE: sid %u, nwrite = %d", - getpid (), session_index, rv); + rv = vcl_session_write_ready (session); + VDBG (2, "VPPCOM_ATTR_GET_NWRITE: sh %u, nwrite = %d", session_handle, + rv); break; case VPPCOM_ATTR_GET_FLAGS: @@ -2497,9 +3040,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, *flags = O_RDWR | (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)); *buflen = sizeof (*flags); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_FLAGS: sid %u, flags = 0x%08x, " - "is_nonblocking = %u", getpid (), - session_index, *flags, + VDBG (2, "VPPCOM_ATTR_GET_FLAGS: sh %u, flags = 0x%08x, " + "is_nonblocking = %u", session_handle, *flags, VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)); } else @@ -2514,9 +3056,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_NONBLOCK); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_FLAGS: sid %u, flags = 0x%08x," - " is_nonblocking = %u", - getpid (), session_index, *flags, + VDBG (2, "VPPCOM_ATTR_SET_FLAGS: sh %u, flags = 0x%08x," + " is_nonblocking = %u", session_handle, *flags, VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_NONBLOCK)); } else @@ -2530,16 +3071,15 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, ep->is_ip4 = session->transport.is_ip4; ep->port = session->transport.rmt_port; if (session->transport.is_ip4) - clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4, - sizeof (ip4_address_t)); + clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4, + sizeof (ip4_address_t)); else - clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6, - sizeof (ip6_address_t)); + clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6, + sizeof (ip6_address_t)); *buflen = sizeof (*ep); - VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_PEER_ADDR: sid %u, is_ip4 = %u, " - "addr = %U, port %u", getpid (), - session_index, ep->is_ip4, format_ip46_address, - &session->transport.rmt_ip, + VDBG (1, "VPPCOM_ATTR_GET_PEER_ADDR: sh %u, is_ip4 = %u, " + "addr = %U, port %u", session_handle, ep->is_ip4, + format_ip46_address, &session->transport.rmt_ip, ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, clib_net_to_host_u16 (ep->port)); } @@ -2554,15 +3094,32 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, ep->is_ip4 = session->transport.is_ip4; ep->port = session->transport.lcl_port; if (session->transport.is_ip4) - clib_memcpy (ep->ip, &session->transport.lcl_ip.ip4, - sizeof (ip4_address_t)); + clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip4, + sizeof (ip4_address_t)); else - clib_memcpy (ep->ip, &session->transport.lcl_ip.ip6, - sizeof (ip6_address_t)); + clib_memcpy_fast (ep->ip, &session->transport.lcl_ip.ip6, + sizeof (ip6_address_t)); + *buflen = sizeof (*ep); + VDBG (1, "VPPCOM_ATTR_GET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U" + " port %d", session_handle, ep->is_ip4, format_ip46_address, + &session->transport.lcl_ip, + ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, + clib_net_to_host_u16 (ep->port)); + } + else + rv = VPPCOM_EINVAL; + break; + + case VPPCOM_ATTR_SET_LCL_ADDR: + if (PREDICT_TRUE (buffer && buflen && + (*buflen >= sizeof (*ep)) && ep->ip)) + { + session->transport.is_ip4 = ep->is_ip4; + session->transport.lcl_port = ep->port; + vcl_ip_copy_from_ep (&session->transport.lcl_ip, ep); *buflen = sizeof (*ep); - VDBG (1, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u," - " addr = %U port %d", getpid (), - session_index, ep->is_ip4, format_ip46_address, + VDBG (1, "VPPCOM_ATTR_SET_LCL_ADDR: sh %u, is_ip4 = %u, addr = %U" + " port %d", session_handle, ep->is_ip4, format_ip46_address, &session->transport.lcl_ip, ep->is_ip4 ? IP46_TYPE_IP4 : IP46_TYPE_IP6, clib_net_to_host_u16 (ep->port)); @@ -2573,8 +3130,7 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, case VPPCOM_ATTR_GET_LIBC_EPFD: rv = session->libc_epfd; - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", - getpid (), rv); + VDBG (2, "VPPCOM_ATTR_GET_LIBC_EPFD: libc_epfd %d", rv); break; case VPPCOM_ATTR_SET_LIBC_EPFD: @@ -2584,8 +3140,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, session->libc_epfd = *(int *) buffer; *buflen = sizeof (session->libc_epfd); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, " - "buflen %d", getpid (), session->libc_epfd, *buflen); + VDBG (2, "VPPCOM_ATTR_SET_LIBC_EPFD: libc_epfd %d, buflen %d", + session->libc_epfd, *buflen); } else rv = VPPCOM_EINVAL; @@ -2597,9 +3153,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, *(int *) buffer = session->session_type; *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d", - getpid (), *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", - *buflen); + VDBG (2, "VPPCOM_ATTR_GET_PROTOCOL: %d (%s), buflen %d", + *(int *) buffer, *(int *) buffer ? "UDP" : "TCP", *buflen); } else rv = VPPCOM_EINVAL; @@ -2612,8 +3167,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_LISTEN); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", - getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_LISTEN: %d, buflen %d", *(int *) buffer, + *buflen); } else rv = VPPCOM_EINVAL; @@ -2625,8 +3180,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, *(int *) buffer = 0; *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#", - getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_ERROR: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2638,13 +3193,14 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, /* VPP-TBD */ *(size_t *) buffer = (session->sndbuf_size ? session->sndbuf_size : - session->tx_fifo ? session->tx_fifo->nitems : + session->tx_fifo ? + svm_fifo_size (session->tx_fifo) : vcm->cfg.tx_fifo_size); *buflen = sizeof (u32); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), " - "buflen %d, #VPP-TBD#", getpid (), - *(size_t *) buffer, *(size_t *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_TX_FIFO_LEN: %u (0x%x), buflen %d," + " #VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, + *buflen); } else rv = VPPCOM_EINVAL; @@ -2655,9 +3211,9 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, { /* VPP-TBD */ session->sndbuf_size = *(u32 *) buffer; - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), " - "buflen %d, #VPP-TBD#", getpid (), - session->sndbuf_size, session->sndbuf_size, *buflen); + VDBG (2, "VPPCOM_ATTR_SET_TX_FIFO_LEN: %u (0x%x), buflen %d," + " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size, + *buflen); } else rv = VPPCOM_EINVAL; @@ -2669,13 +3225,13 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, /* VPP-TBD */ *(size_t *) buffer = (session->rcvbuf_size ? session->rcvbuf_size : - session->rx_fifo ? session->rx_fifo->nitems : + session->rx_fifo ? + svm_fifo_size (session->rx_fifo) : vcm->cfg.rx_fifo_size); *buflen = sizeof (u32); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), " - "buflen %d, #VPP-TBD#", getpid (), - *(size_t *) buffer, *(size_t *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_RX_FIFO_LEN: %u (0x%x), buflen %d, " + "#VPP-TBD#", *(size_t *) buffer, *(size_t *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2686,9 +3242,9 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, { /* VPP-TBD */ session->rcvbuf_size = *(u32 *) buffer; - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), " - "buflen %d, #VPP-TBD#", getpid (), - session->sndbuf_size, session->sndbuf_size, *buflen); + VDBG (2, "VPPCOM_ATTR_SET_RX_FIFO_LEN: %u (0x%x), buflen %d," + " #VPP-TBD#", session->sndbuf_size, session->sndbuf_size, + *buflen); } else rv = VPPCOM_EINVAL; @@ -2702,8 +3258,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_REUSEADDR); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEADDR: %d, " - "buflen %d, #VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_REUSEADDR: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2719,10 +3275,9 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEADDR); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d," - " #VPP-TBD#", getpid (), - VCL_SESS_ATTR_TEST (session->attr, - VCL_SESS_ATTR_REUSEADDR), *buflen); + VDBG (2, "VPPCOM_ATTR_SET_REUSEADDR: %d, buflen %d, #VPP-TBD#", + VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEADDR), + *buflen); } else rv = VPPCOM_EINVAL; @@ -2736,8 +3291,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_REUSEPORT); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d," - " #VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_REUSEPORT: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2753,10 +3308,9 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_REUSEPORT); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d," - " #VPP-TBD#", getpid (), - VCL_SESS_ATTR_TEST (session->attr, - VCL_SESS_ATTR_REUSEPORT), *buflen); + VDBG (2, "VPPCOM_ATTR_SET_REUSEPORT: %d, buflen %d, #VPP-TBD#", + VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_REUSEPORT), + *buflen); } else rv = VPPCOM_EINVAL; @@ -2770,8 +3324,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_BROADCAST); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d," - " #VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_BROADCAST: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2786,10 +3340,9 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_BROADCAST); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, " - "#VPP-TBD#", getpid (), - VCL_SESS_ATTR_TEST (session->attr, - VCL_SESS_ATTR_BROADCAST), *buflen); + VDBG (2, "VPPCOM_ATTR_SET_BROADCAST: %d, buflen %d, #VPP-TBD#", + VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_BROADCAST), + *buflen); } else rv = VPPCOM_EINVAL; @@ -2803,8 +3356,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_V6ONLY); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, " - "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_V6ONLY: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2819,10 +3372,9 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_V6ONLY); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, " - "#VPP-TBD#", getpid (), - VCL_SESS_ATTR_TEST (session->attr, - VCL_SESS_ATTR_V6ONLY), *buflen); + VDBG (2, "VPPCOM_ATTR_SET_V6ONLY: %d, buflen %d, #VPP-TBD#", + VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_V6ONLY), + *buflen); } else rv = VPPCOM_EINVAL; @@ -2836,8 +3388,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_KEEPALIVE); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, " - "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_KEEPALIVE: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2852,10 +3404,9 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_KEEPALIVE); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, " - "#VPP-TBD#", getpid (), - VCL_SESS_ATTR_TEST (session->attr, - VCL_SESS_ATTR_KEEPALIVE), *buflen); + VDBG (2, "VPPCOM_ATTR_SET_KEEPALIVE: %d, buflen %d, #VPP-TBD#", + VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_KEEPALIVE), + *buflen); } else rv = VPPCOM_EINVAL; @@ -2869,8 +3420,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_TCP_NODELAY); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, " - "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2885,10 +3436,9 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_NODELAY); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, " - "#VPP-TBD#", getpid (), - VCL_SESS_ATTR_TEST (session->attr, - VCL_SESS_ATTR_TCP_NODELAY), *buflen); + VDBG (2, "VPPCOM_ATTR_SET_TCP_NODELAY: %d, buflen %d, #VPP-TBD#", + VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_NODELAY), + *buflen); } else rv = VPPCOM_EINVAL; @@ -2902,8 +3452,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_TCP_KEEPIDLE); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, " - "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2918,8 +3468,7 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, " - "#VPP-TBD#", getpid (), + VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPIDLE: %d, buflen %d, #VPP-TBD#", VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_KEEPIDLE), *buflen); } @@ -2935,8 +3484,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, VCL_SESS_ATTR_TCP_KEEPINTVL); *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, " - "#VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2951,8 +3500,7 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, else VCL_SESS_ATTR_CLR (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, " - "#VPP-TBD#", getpid (), + VDBG (2, "VPPCOM_ATTR_SET_TCP_KEEPINTVL: %d, buflen %d, #VPP-TBD#", VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_TCP_KEEPINTVL), *buflen); } @@ -2967,8 +3515,8 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, *(u32 *) buffer = session->user_mss; *buflen = sizeof (int); - VDBG (2, "VCL<%d>: VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d," - " #VPP-TBD#", getpid (), *(int *) buffer, *buflen); + VDBG (2, "VPPCOM_ATTR_GET_TCP_USER_MSS: %d, buflen %d, #VPP-TBD#", + *(int *) buffer, *buflen); } else rv = VPPCOM_EINVAL; @@ -2980,13 +3528,33 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, /* VPP-TBD */ session->user_mss = *(u32 *) buffer; - VDBG (2, "VCL<%d>: VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, " - "#VPP-TBD#", getpid (), session->user_mss, *buflen); + VDBG (2, "VPPCOM_ATTR_SET_TCP_USER_MSS: %u, buflen %d, #VPP-TBD#", + session->user_mss, *buflen); } else rv = VPPCOM_EINVAL; break; + case VPPCOM_ATTR_SET_SHUT: + if (*flags == SHUT_RD || *flags == SHUT_RDWR) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_RD); + if (*flags == SHUT_WR || *flags == SHUT_RDWR) + VCL_SESS_ATTR_SET (session->attr, VCL_SESS_ATTR_SHUT_WR); + break; + + case VPPCOM_ATTR_GET_SHUT: + if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_RD)) + tmp_flags = 1; + if (VCL_SESS_ATTR_TEST (session->attr, VCL_SESS_ATTR_SHUT_WR)) + tmp_flags |= 2; + if (tmp_flags == 1) + *(int *) buffer = SHUT_RD; + else if (tmp_flags == 2) + *(int *) buffer = SHUT_WR; + else if (tmp_flags == 3) + *(int *) buffer = SHUT_RDWR; + *buflen = sizeof (int); + break; default: rv = VPPCOM_EINVAL; break; @@ -2996,19 +3564,19 @@ vppcom_session_attr (uint32_t session_index, uint32_t op, } int -vppcom_session_recvfrom (uint32_t session_index, void *buffer, +vppcom_session_recvfrom (uint32_t session_handle, void *buffer, uint32_t buflen, int flags, vppcom_endpt_t * ep) { + vcl_worker_t *wrk = vcl_worker_get_current (); int rv = VPPCOM_OK; vcl_session_t *session = 0; if (ep) { - session = vcl_session_get (session_index); + session = vcl_session_get_w_handle (wrk, session_handle); if (PREDICT_FALSE (!session)) { - VDBG (0, "VCL<%d>: invalid session, sid (%u) has been closed!", - getpid (), session_index); + VDBG (0, "sh 0x%llx is closed!", session_handle); return VPPCOM_EBADFD; } ep->is_ip4 = session->transport.is_ip4; @@ -3016,31 +3584,30 @@ vppcom_session_recvfrom (uint32_t session_index, void *buffer, } if (flags == 0) - rv = vppcom_session_read (session_index, buffer, buflen); + rv = vppcom_session_read (session_handle, buffer, buflen); else if (flags & MSG_PEEK) - rv = vppcom_session_peek (session_index, buffer, buflen); + rv = vppcom_session_peek (session_handle, buffer, buflen); else { - clib_warning ("VCL<%d>: Unsupport flags for recvfrom %d", - getpid (), flags); + VDBG (0, "Unsupport flags for recvfrom %d", flags); return VPPCOM_EAFNOSUPPORT; } if (ep) { if (session->transport.is_ip4) - clib_memcpy (ep->ip, &session->transport.rmt_ip.ip4, - sizeof (ip4_address_t)); + clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip4, + sizeof (ip4_address_t)); else - clib_memcpy (ep->ip, &session->transport.rmt_ip.ip6, - sizeof (ip6_address_t)); + clib_memcpy_fast (ep->ip, &session->transport.rmt_ip.ip6, + sizeof (ip6_address_t)); } return rv; } int -vppcom_session_sendto (uint32_t session_index, void *buffer, +vppcom_session_sendto (uint32_t session_handle, void *buffer, uint32_t buflen, int flags, vppcom_endpt_t * ep) { if (!buffer) @@ -3055,22 +3622,23 @@ vppcom_session_sendto (uint32_t session_index, void *buffer, if (flags) { // TBD check the flags and do the right thing - VDBG (2, "VCL<%d>: handling flags 0x%u (%d) not implemented yet.", - getpid (), flags, flags); + VDBG (2, "handling flags 0x%u (%d) not implemented yet.", flags, flags); } - return (vppcom_session_write (session_index, buffer, buflen)); + return (vppcom_session_write_inline (session_handle, buffer, buflen, 1)); } int vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) { - f64 timeout = clib_time_now (&vcm->clib_time) + wait_for_time; + vcl_worker_t *wrk = vcl_worker_get_current (); + f64 timeout = clib_time_now (&wrk->clib_time) + wait_for_time; u32 i, keep_trying = 1; + svm_msg_q_msg_t msg; + session_event_t *e; int rv, num_ev = 0; - VDBG (3, "VCL<%d>: vp %p, nsids %u, wait_for_time %f", - getpid (), vp, n_sids, wait_for_time); + VDBG (3, "vp %p, nsids %u, wait_for_time %f", vp, n_sids, wait_for_time); if (!vp) return VPPCOM_EFAULT; @@ -3079,23 +3647,33 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) { vcl_session_t *session; - for (i = 0; i < n_sids; i++) + /* Dequeue all events and drop all unhandled io events */ + while (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0) == 0) { - ASSERT (vp[i].revents); + e = svm_msg_q_msg_data (wrk->app_event_queue, &msg); + vcl_handle_mq_event (wrk, e); + svm_msg_q_free_msg (wrk->app_event_queue, &msg); + } + vec_reset_length (wrk->unhandled_evts_vector); - session = vcl_session_get (vp[i].sid); + for (i = 0; i < n_sids; i++) + { + session = vcl_session_get (wrk, vp[i].sh); if (!session) - continue; + { + vp[i].revents = POLLHUP; + num_ev++; + continue; + } - if (*vp[i].revents) - *vp[i].revents = 0; + vp[i].revents = 0; if (POLLIN & vp[i].events) { - rv = vppcom_session_read_ready (session); + rv = vcl_session_read_ready (session); if (rv > 0) { - *vp[i].revents |= POLLIN; + vp[i].revents |= POLLIN; num_ev++; } else if (rv < 0) @@ -3103,11 +3681,11 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) switch (rv) { case VPPCOM_ECONNRESET: - *vp[i].revents = POLLHUP; + vp[i].revents = POLLHUP; break; default: - *vp[i].revents = POLLERR; + vp[i].revents = POLLERR; break; } num_ev++; @@ -3116,10 +3694,10 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) if (POLLOUT & vp[i].events) { - rv = vppcom_session_write_ready (session, vp[i].sid); + rv = vcl_session_write_ready (session); if (rv > 0) { - *vp[i].revents |= POLLOUT; + vp[i].revents |= POLLOUT; num_ev++; } else if (rv < 0) @@ -3127,11 +3705,11 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) switch (rv) { case VPPCOM_ECONNRESET: - *vp[i].revents = POLLHUP; + vp[i].revents = POLLHUP; break; default: - *vp[i].revents = POLLERR; + vp[i].revents = POLLERR; break; } num_ev++; @@ -3140,32 +3718,119 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) if (0) // Note "done:" label used by VCL_SESSION_LOCK_AND_GET() { - *vp[i].revents = POLLNVAL; + vp[i].revents = POLLNVAL; num_ev++; } } if (wait_for_time != -1) - keep_trying = (clib_time_now (&vcm->clib_time) <= timeout) ? 1 : 0; + keep_trying = (clib_time_now (&wrk->clib_time) <= timeout) ? 1 : 0; } while ((num_ev == 0) && keep_trying); - if (VPPCOM_DEBUG > 3) - { - clib_warning ("VCL<%d>: returning %d", getpid (), num_ev); - for (i = 0; i < n_sids; i++) - { - clib_warning ("VCL<%d>: vp[%d].sid %d (0x%x), .events 0x%x, " - ".revents 0x%x", getpid (), i, vp[i].sid, vp[i].sid, - vp[i].events, *vp[i].revents); - } - } return num_ev; } int vppcom_mq_epoll_fd (void) { - return vcm->mqs_epfd; + vcl_worker_t *wrk = vcl_worker_get_current (); + return wrk->mqs_epfd; +} + +int +vppcom_session_index (vcl_session_handle_t session_handle) +{ + return session_handle & 0xFFFFFF; +} + +int +vppcom_session_worker (vcl_session_handle_t session_handle) +{ + return session_handle >> 24; +} + +int +vppcom_worker_register (void) +{ + vcl_worker_t *wrk; + u8 *wrk_name = 0; + int rv; + + if (!vcl_worker_alloc_and_init ()) + return VPPCOM_EEXIST; + + wrk = vcl_worker_get_current (); + wrk_name = format (0, "%s-wrk-%u", vcm->app_name, wrk->wrk_index); + + rv = vppcom_connect_to_vpp ((char *) wrk_name); + vec_free (wrk_name); + + if (rv) + return VPPCOM_EFAULT; + + if (vcl_worker_register_with_vpp ()) + return VPPCOM_EEXIST; + + return VPPCOM_OK; +} + +void +vppcom_worker_unregister (void) +{ + vcl_worker_cleanup (vcl_worker_get_current (), 1 /* notify vpp */ ); + vcl_set_worker_index (~0); +} + +int +vppcom_worker_index (void) +{ + return vcl_get_worker_index (); +} + +int +vppcom_worker_mqs_epfd (void) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + if (!vcm->cfg.use_mq_eventfd) + return -1; + return wrk->mqs_epfd; +} + +int +vppcom_session_is_connectable_listener (uint32_t session_handle) +{ + vcl_session_t *session; + vcl_worker_t *wrk = vcl_worker_get_current (); + session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + return vcl_session_is_connectable_listener (wrk, session); +} + +int +vppcom_session_listener (uint32_t session_handle) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + vcl_session_t *listen_session, *session; + session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + if (session->listener_index == VCL_INVALID_SESSION_INDEX) + return VPPCOM_EBADFD; + listen_session = vcl_session_get_w_handle (wrk, session->listener_index); + if (!listen_session) + return VPPCOM_EBADFD; + return vcl_session_handle (listen_session); +} + +int +vppcom_session_n_accepted (uint32_t session_handle) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + vcl_session_t *session = vcl_session_get_w_handle (wrk, session_handle); + if (!session) + return VPPCOM_EBADFD; + return session->n_accepted_sessions; } /*