X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvcl%2Fvppcom.c;h=34b663b98318757a5c8b716043f5a3409c229c9a;hb=d85de68ec;hp=87f29e353113b8033d019c60ef75e6ad794c2bff;hpb=134a996a0279577080b626d5172c1739efa00b92;p=vpp.git diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 87f29e35311..34b663b9831 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -17,52 +17,31 @@ #include #include #include -#include #include #include __thread uword __vcl_worker_index = ~0; -static u8 not_ready; -void -sigsegv_signal (int signum) +static int +vcl_wait_for_segment (u64 segment_handle) { - not_ready = 1; -} + vcl_worker_t *wrk = vcl_worker_get_current (); + u32 wait_for_seconds = 10, segment_index; + f64 timeout; -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 1; -again: - test = *(u8 *) mem; - if (not_ready) + timeout = clib_time_now (&wrk->clib_time) + wait_for_seconds; + while (clib_time_now (&wrk->clib_time) < timeout) { - not_ready = 0; - usleep (1); - goto again; + segment_index = vcl_segment_table_lookup (segment_handle); + if (segment_index != VCL_INVALID_SEGMENT_INDEX) + return 0; + usleep (10); } - - signal (SIGSEGV, SIG_DFL); + return 1; } const char * @@ -282,9 +261,16 @@ vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp) 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); + if (vcl_wait_for_segment (mp->segment_handle)) + { + clib_warning ("segment for session %u couldn't be mounted!", + session->session_index); + return VCL_INVALID_SESSION_INDEX; + } rx_fifo->master_session_index = session->session_index; tx_fifo->master_session_index = session->session_index; + rx_fifo->master_thread_index = vcl_get_worker_index (); + tx_fifo->master_thread_index = vcl_get_worker_index (); vec_validate (wrk->vpp_event_queues, 0); evt_q = uword_to_pointer (mp->vpp_event_queue_address, svm_msg_q_t *); wrk->vpp_event_queues[0] = evt_q; @@ -295,7 +281,8 @@ vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp) 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; @@ -309,7 +296,8 @@ vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp) 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)); + clib_memcpy_fast (&session->transport.rmt_ip, mp->ip, + sizeof (ip46_address_t)); vcl_session_table_add_vpp_handle (wrk, mp->handle, session->session_index); session->transport.lcl_port = listen_session->transport.lcl_port; @@ -349,8 +337,7 @@ vcl_session_connected_handler (vcl_worker_t * wrk, 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_index, format_api_error, ntohl (mp->retval)); session->session_state = STATE_FAILED; session->vpp_handle = mp->handle; return session_index; @@ -358,9 +345,17 @@ vcl_session_connected_handler (vcl_worker_t * wrk, 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_wait_for_segment (mp->segment_handle)) + { + clib_warning ("segment for session %u couldn't be mounted!", + session->session_index); + return VCL_INVALID_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) { @@ -386,8 +381,8 @@ vcl_session_connected_handler (vcl_worker_t * wrk, 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)); + 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; @@ -419,7 +414,7 @@ vcl_session_reset_handler (vcl_worker_t * wrk, 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 (wrk, session), - vcm->my_client_index, reset_msg->handle, 0); + wrk->my_client_index, reset_msg->handle, 0); return sid; } @@ -432,8 +427,8 @@ vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp) 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 ("vpp handle 0x%llx, sid %u: bind failed: %U", mp->handle, sid, + format_api_error, mp->retval); if (session) { session->session_state = STATE_FAILED; @@ -451,8 +446,8 @@ vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp) 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; vcl_session_table_add_listener (wrk, mp->handle, sid); session->session_state = STATE_LISTEN; @@ -474,8 +469,8 @@ vcl_session_bound_handler (vcl_worker_t * wrk, session_bound_msg_t * mp) return sid; } -int -vcl_handle_mq_ctrl_event (vcl_worker_t * wrk, session_event_t * e) +static int +vcl_handle_mq_event (vcl_worker_t * wrk, session_event_t * e) { session_accepted_msg_t *accepted_msg; session_disconnected_msg_t *disconnected_msg; @@ -487,9 +482,10 @@ vcl_handle_mq_ctrl_event (vcl_worker_t * wrk, session_event_t * e) switch (e->event_type) { case FIFO_EVENT_APP_RX: - clib_warning ("unhandled rx: sid %u (0x%x)", - e->fifo->client_session_index, - e->fifo->client_session_index); + case FIFO_EVENT_APP_TX: + case SESSION_IO_EVT_CT_RX: + case SESSION_IO_EVT_CT_TX: + vec_add1 (wrk->unhandled_evts_vector, *e); break; case SESSION_CTRL_EVT_ACCEPTED: accepted_msg = (session_accepted_msg_t *) e->data; @@ -520,7 +516,7 @@ vcl_handle_mq_ctrl_event (vcl_worker_t * wrk, session_event_t * e) break; } session->session_state = STATE_DISCONNECT; - VDBG (0, "disconnected handle 0xllx, sid %u", disconnected_msg->handle, + VDBG (0, "disconnected handle 0x%llx, sid %u", disconnected_msg->handle, sid); break; case SESSION_CTRL_EVT_RESET: @@ -565,7 +561,7 @@ vppcom_wait_for_session_state_change (u32 session_index, if (svm_msg_q_sub (wrk->app_event_queue, &msg, SVM_Q_NOWAIT, 0)) continue; e = svm_msg_q_msg_data (wrk->app_event_queue, &msg); - vcl_handle_mq_ctrl_event (wrk, e); + vcl_handle_mq_event (wrk, e); svm_msg_q_free_msg (wrk->app_event_queue, &msg); } while (clib_time_now (&wrk->clib_time) < timeout); @@ -614,13 +610,13 @@ vppcom_app_attach (void) } static int -vppcom_session_unbind (u32 session_index) +vppcom_session_unbind (u32 session_handle) { vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *session = 0; u64 vpp_handle; - session = vcl_session_get (wrk, session_index); + session = vcl_session_get_w_handle (wrk, session_handle); if (!session) return VPPCOM_EBADFD; @@ -630,7 +626,7 @@ vppcom_session_unbind (u32 session_index) session->session_state = STATE_DISCONNECT; 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, + " 0x%x (%s)", getpid (), vpp_handle, session_handle, STATE_DISCONNECT, vppcom_session_state_str (STATE_DISCONNECT)); vcl_evt (VCL_EVT_UNBIND, session); vppcom_send_unbind_sock (vpp_handle); @@ -639,7 +635,7 @@ vppcom_session_unbind (u32 session_index) } static int -vppcom_session_disconnect (u32 session_index) +vppcom_session_disconnect (u32 session_handle) { vcl_worker_t *wrk = vcl_worker_get_current (); svm_msg_q_t *vpp_evt_q; @@ -647,39 +643,107 @@ vppcom_session_disconnect (u32 session_index) session_state_t state; u64 vpp_handle; - session = vcl_session_get (wrk, session_index); + 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, "VCL<%d>: vpp handle 0x%llx, sid %u state 0x%x (%s)", getpid (), - vpp_handle, session_index, state, vppcom_session_state_str (state)); + vpp_handle, session_handle, state, vppcom_session_state_str (state)); if (PREDICT_FALSE (state & STATE_LISTEN)) { clib_warning ("VCL<%d>: ERROR: vpp handle 0x%llx, sid %u: " "Cannot disconnect a listen socket!", - getpid (), vpp_handle, session_index); + getpid (), vpp_handle, session_handle); return VPPCOM_EBADFD; } if (state & STATE_CLOSE_ON_EMPTY) { vpp_evt_q = vcl_session_vpp_evt_q (wrk, session); - vcl_send_session_disconnected_reply (vpp_evt_q, vcm->my_client_index, + vcl_send_session_disconnected_reply (vpp_evt_q, wrk->my_client_index, vpp_handle, 0); VDBG (1, "VCL<%d>: vpp handle 0x%llx, sid %u: sending disconnect " - "REPLY...", getpid (), vpp_handle, session_index); + "REPLY...", getpid (), vpp_handle, session_handle); } else { 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); + getpid (), vpp_handle, session_handle); + vppcom_send_disconnect_session (vpp_handle); } return VPPCOM_OK; } +static void +vcl_cleanup_bapi (void) +{ + socket_client_main_t *scm = &socket_client_main; + api_main_t *am = &api_main; + + am->my_client_index = ~0; + am->my_registration = 0; + am->vl_input_queue = 0; + am->msg_index_by_name_and_crc = 0; + scm->socket_fd = 0; + + vl_client_api_unmap (); +} + +void +vcl_app_fork_child_handler (void) +{ + u8 *child_name; + int rv, parent_wrk; + + VDBG (0, "initializing forked child"); + + /* + * Allocate worker + */ + parent_wrk = vcl_get_worker_index (); + vcl_set_worker_index (~0); + if (!vcl_worker_alloc_and_init ()) + VERR ("couldn't allocate new worker"); + + /* + * Attach to binary api + */ + child_name = format (0, "%v-child-%u%c", vcm->app_name, getpid (), 0); + vcl_cleanup_bapi (); + vppcom_api_hookup (); + vcm->app_state = STATE_APP_START; + rv = vppcom_connect_to_vpp ((char *) child_name); + vec_free (child_name); + if (rv) + { + VERR ("couldn't connect to VPP!"); + return; + } + + /* + * Register worker with vpp and share sessions + */ + vcl_worker_register_with_vpp (); + vcl_worker_share_sessions (parent_wrk); + + VDBG (0, "forked child main worker initialized"); + vcm->forking = 0; +} + +void +vcl_app_fork_parent_handler (void) +{ + vcm->forking = 1; + + while (vcm->forking) + ; +} + /* * VPPCOM Public API functions */ @@ -689,56 +753,60 @@ vppcom_app_create (char *app_name) vppcom_cfg_t *vcl_cfg = &vcm->cfg; int rv; - if (!vcm->is_init) + if (vcm->is_init) { - vcm->is_init = 1; - vppcom_cfg (&vcm->cfg); - vcl_cfg = &vcm->cfg; - - vcm->main_cpu = pthread_self (); - vppcom_init_error_string_table (); - svm_fifo_segment_main_init (vcl_cfg->segment_baseva, - 20 /* timeout in secs */ ); - pool_init_fixed (vcm->workers, vcl_cfg->max_workers); - vcl_worker_alloc_and_init (); + clib_warning ("already initialized"); + return -1; } - if (vcm->my_client_index == ~0) - { - /* 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) - { - clib_warning ("VCL<%d>: ERROR: couldn't connect to VPP!", - getpid ()); - return rv; - } + vcm->is_init = 1; + vppcom_cfg (&vcm->cfg); + vcl_cfg = &vcm->cfg; - VDBG (0, "VCL<%d>: sending session enable", getpid ()); - rv = vppcom_app_session_enable (); - if (rv) - { - clib_warning ("VCL<%d>: ERROR: vppcom_app_session_enable() " - "failed!", getpid ()); - return rv; - } + vcm->main_cpu = pthread_self (); + vcm->main_pid = getpid (); + vcm->app_name = format (0, "%s", app_name); + vppcom_init_error_string_table (); + svm_fifo_segment_main_init (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); + pthread_atfork (NULL, vcl_app_fork_parent_handler, + vcl_app_fork_child_handler); - VDBG (0, "VCL<%d>: sending app attach", getpid ()); - rv = vppcom_app_attach (); - if (rv) - { - clib_warning ("VCL<%d>: ERROR: vppcom_app_attach() failed!", - getpid ()); - return rv; - } + /* Allocate default worker */ + vcl_worker_alloc_and_init (); - VDBG (0, "VCL<%d>: app_name '%s', my_client_index %d (0x%x)", - getpid (), app_name, vcm->my_client_index, vcm->my_client_index); + /* 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) + { + 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; } @@ -748,26 +816,27 @@ vppcom_app_destroy (void) int rv; f64 orig_app_timeout; - if (vcm->my_client_index == ~0) - 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 = vcl_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 (vec_len (vcm->workers) == 1) + { + vppcom_app_send_detach (); + 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)); + } + else + { + vcl_worker_cleanup (); + } vcl_elog_stop (vcm); vl_client_disconnect_from_vlib (); - vcm->my_client_index = ~0; - vcm->app_state = STATE_APP_START; + vec_free (vcm->app_name); } int @@ -789,7 +858,7 @@ 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->session_index); + VDBG (0, "created sid %u", session->session_index); return vcl_session_handle (session); } @@ -798,8 +867,8 @@ int vppcom_session_close (uint32_t session_handle) { vcl_worker_t *wrk = vcl_worker_get_current (); + u8 is_vep, do_disconnect = 1; vcl_session_t *session = 0; - u8 is_vep, is_vep_session; session_state_t state; u32 next_sh, vep_sh; int rv = VPPCOM_OK; @@ -809,24 +878,17 @@ vppcom_session_close (uint32_t session_handle) if (!session) return VPPCOM_EBADFD; + if (session->shared_index != ~0) + do_disconnect = vcl_worker_unshare_session (wrk, session); + is_vep = session->is_vep; - is_vep_session = session->is_vep_session; 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_handle, session_handle); - else - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %d: " - "closing session...", - getpid (), vpp_handle, session_handle); - } + VDBG (0, "Closing session handle %u vpp handle %u", session_handle, + vpp_handle); if (is_vep) { @@ -834,34 +896,34 @@ vppcom_session_close (uint32_t session_handle) { rv = vppcom_epoll_ctl (session_handle, 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_sh, vep_sh, - rv, vppcom_retval_str (rv)); + VDBG (0, "vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL vep_idx %u" + " failed! rv %d (%s)", vpp_handle, next_sh, vep_sh, rv, + vppcom_retval_str (rv)); next_sh = session->vep.next_sh; } } else { - if (is_vep_session) + if (session->is_vep_session) { rv = vppcom_epoll_ctl (vep_sh, EPOLL_CTL_DEL, session_handle, 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_handle, - vep_sh, rv, vppcom_retval_str (rv)); + VDBG (0, "vpp handle 0x%llx, sid %u: EPOLL_CTL_DEL vep_idx %u " + "failed! rv %d (%s)", vpp_handle, session_handle, vep_sh, + rv, vppcom_retval_str (rv)); } + if (!do_disconnect) + goto cleanup; + if (state & STATE_LISTEN) { rv = vppcom_session_unbind (session_handle); 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_handle, - rv, vppcom_retval_str (rv)); + VDBG (0, "vpp handle 0x%llx, sid %u: listener unbind failed! " + "rv %d (%s)", vpp_handle, session_handle, rv, + vppcom_retval_str (rv)); } else if (state & STATE_OPEN) { @@ -874,6 +936,8 @@ vppcom_session_close (uint32_t session_handle) } } +cleanup: + if (vcl_session_is_ct (session)) { vcl_cut_through_registration_t *ctr; @@ -897,15 +961,8 @@ vppcom_session_close (uint32_t session_handle) } vcl_session_free (wrk, session); - if (VPPCOM_DEBUG > 0) - { - if (is_vep) - clib_warning ("VCL<%d>: vep_idx %u / sid %u: epoll session removed.", - getpid (), session_handle, session_handle); - else - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: session removed.", - getpid (), vpp_handle, session_handle); - } + VDBG (0, "session handle %u vpp handle %u removed", session_handle, + vpp_handle); vcl_evt (VCL_EVT_CLOSE, session, rv); @@ -934,11 +991,11 @@ vppcom_session_bind (uint32_t session_handle, vppcom_endpt_t * ep) 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, " @@ -1083,7 +1140,7 @@ vppcom_session_accept (uint32_t listen_session_handle, vppcom_endpt_t * ep, svm_msg_q_free_msg (wrk->app_event_queue, &msg); continue; } - clib_memcpy (&accepted_msg, e->data, sizeof (accepted_msg)); + clib_memcpy_fast (&accepted_msg, e->data, sizeof (accepted_msg)); svm_msg_q_free_msg (wrk->app_event_queue, &msg); break; } @@ -1110,11 +1167,11 @@ handle: 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) @@ -1142,7 +1199,7 @@ handle: vcl_evt (VCL_EVT_ACCEPT, client_session, listen_session, client_session_index); - return client_session_index; + return vcl_session_handle (client_session); } int @@ -1183,11 +1240,11 @@ vppcom_session_connect (uint32_t session_handle, vppcom_endpt_t * server_ep) 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)); + clib_memcpy_fast (&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)); + clib_memcpy_fast (&session->transport.rmt_ip.ip6, server_ep->ip, + sizeof (ip6_address_t)); session->transport.rmt_port = server_ep->port; VDBG (0, "VCL<%d>: vpp handle 0x%llx, sid %u: connecting to server %s %U " @@ -1260,25 +1317,15 @@ vppcom_session_read_internal (uint32_t session_handle, void *buf, int n, 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_w_handle (wrk, session_handle); - if (PREDICT_FALSE (!s)) + if (PREDICT_FALSE (!s || s->is_vep)) return VPPCOM_EBADFD; - if (PREDICT_FALSE (s->is_vep)) - { - clib_warning ("VCL<%d>: ERROR: sid %u: cannot " - "read from an epoll session!", getpid (), session_handle); - return VPPCOM_EBADFD; - } - - 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; @@ -1291,18 +1338,22 @@ vppcom_session_read_internal (uint32_t session_handle, void *buf, int n, return rv; } - mq = vcl_session_is_ct (s) ? s->our_evt_q : wrk->app_event_queue; - svm_fifo_unset_event (rx_fifo); - is_full = svm_fifo_is_full (rx_fifo); + 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 (svm_fifo_is_empty (rx_fifo)) { if (is_nonblocking) { - return VPPCOM_OK; + svm_fifo_unset_event (rx_fifo); + return VPPCOM_EWOULDBLOCK; } - while (1) + while (svm_fifo_is_empty (rx_fifo)) { + svm_fifo_unset_event (rx_fifo); svm_msg_q_lock (mq); if (svm_msg_q_is_empty (mq)) svm_msg_q_wait (mq); @@ -1310,20 +1361,16 @@ vppcom_session_read_internal (uint32_t session_handle, 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, s->session_index, - s->our_evt_q != 0)) + if (!vcl_is_rx_evt_for_session (e, s->session_index, is_ct)) { - vcl_handle_mq_ctrl_event (wrk, e); + vcl_handle_mq_event (wrk, e); svm_msg_q_free_msg (mq, &msg); continue; } - svm_fifo_unset_event (rx_fifo); 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; } } @@ -1332,25 +1379,19 @@ vppcom_session_read_internal (uint32_t session_handle, 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 (rx_fifo)) + svm_fifo_unset_event (rx_fifo); - if (VPPCOM_DEBUG > 2) + if (is_ct && svm_fifo_want_tx_evt (rx_fifo)) { - if (n_read > 0) - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes " - "from (%p)", getpid (), s->vpp_handle, - session_handle, 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_handle, n_read, vppcom_retval_str (n_read)); + svm_fifo_set_want_tx_evt (s->rx_fifo, 0); + app_send_io_evt_to_vpp (s->vpp_evt_q, s->rx_fifo, SESSION_IO_EVT_CT_RX, + SVM_Q_WAIT); } + + VDBG (2, "VCL<%d>: vpp handle 0x%llx, sid %u: read %d bytes from (%p)", + getpid (), s->vpp_handle, session_handle, n_read, rx_fifo); + return n_read; } @@ -1366,6 +1407,94 @@ vppcom_session_peek (uint32_t session_handle, void *buf, int n) return (vppcom_session_read_internal (session_handle, buf, n, 1)); } +int +vppcom_session_read_segments (uint32_t session_handle, + vppcom_data_segments_t ds) +{ + vcl_worker_t *wrk = vcl_worker_get_current (); + int n_read = 0, rv, 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_readable (s))) + { + session_state_t state = s->session_state; + rv = ((state & STATE_DISCONNECT) ? VPPCOM_ECONNRESET : VPPCOM_ENOTCONN); + return rv; + } + + 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 (svm_fifo_is_empty (rx_fifo)) + { + if (is_nonblocking) + { + svm_fifo_unset_event (rx_fifo); + return VPPCOM_EWOULDBLOCK; + } + while (svm_fifo_is_empty (rx_fifo)) + { + svm_fifo_unset_event (rx_fifo); + svm_msg_q_lock (mq); + 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_rx_evt_for_session (e, s->session_index, is_ct)) + { + vcl_handle_mq_event (wrk, e); + svm_msg_q_free_msg (mq, &msg); + continue; + } + svm_msg_q_free_msg (mq, &msg); + + if (PREDICT_FALSE (s->session_state == STATE_CLOSE_ON_EMPTY)) + return 0; + } + } + + n_read = svm_fifo_segments (rx_fifo, (svm_fifo_segment_t *) ds); + svm_fifo_unset_event (rx_fifo); + + if (is_ct && n_read + svm_fifo_max_dequeue (rx_fifo) == rx_fifo->nitems) + { + /* 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); + } + + 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_segment_t *) ds); +} + static inline int vppcom_session_read_ready (vcl_session_t * session) { @@ -1397,6 +1526,19 @@ vppcom_session_read_ready (vcl_session_t * session) 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) { @@ -1418,6 +1560,7 @@ vppcom_session_write (uint32_t session_handle, void *buf, size_t n) svm_msg_q_msg_t msg; session_event_t *e; svm_msg_q_t *mq; + u8 is_ct; if (PREDICT_FALSE (!buf)) return VPPCOM_EINVAL; @@ -1426,9 +1569,6 @@ vppcom_session_write (uint32_t session_handle, void *buf, size_t n) 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: " @@ -1438,18 +1578,20 @@ vppcom_session_write (uint32_t session_handle, void *buf, size_t n) return VPPCOM_EBADFD; } - if (!(s->session_state & STATE_OPEN)) + if (PREDICT_FALSE (!(s->session_state & STATE_OPEN))) { 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_handle, + "state 0x%x (%s)", getpid (), s->vpp_handle, session_handle, state, vppcom_session_state_str (state)); return rv; } - mq = vcl_session_is_ct (s) ? s->our_evt_q : wrk->app_event_queue; + tx_fifo = s->tx_fifo; + is_ct = vcl_session_is_ct (s); + is_nonblocking = VCL_SESS_ATTR_TEST (s->attr, VCL_SESS_ATTR_NONBLOCK); + mq = is_ct ? s->our_evt_q : wrk->app_event_queue; if (svm_fifo_is_full (tx_fifo)) { if (is_nonblocking) @@ -1458,16 +1600,17 @@ vppcom_session_write (uint32_t session_handle, void *buf, size_t n) } while (svm_fifo_is_full (tx_fifo)) { + svm_fifo_set_want_tx_evt (tx_fifo, 1); 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, s->session_index, - s->our_evt_q != 0)) - vcl_handle_mq_ctrl_event (wrk, 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); } } @@ -1483,17 +1626,9 @@ vppcom_session_write (uint32_t session_handle, void *buf, size_t n) 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_handle, tx_fifo); - else - clib_warning ("VCL<%d>: vpp handle 0x%llx, sid %u: " - "wrote %d bytes tx-fifo: (%p)", getpid (), - s->vpp_handle, session_handle, n_write, tx_fifo); - } + VDBG (2, "VCL<%d>: vpp handle 0x%llx, sid %u: wrote %d bytes", getpid (), + s->vpp_handle, session_handle, n_write); + return n_write; } @@ -1580,21 +1715,132 @@ vcl_mq_dequeue_batch (vcl_worker_t * wrk, svm_msg_q_t * mq) return n_msgs; } -static int -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) +#define vcl_fifo_rx_evt_valid_or_break(_fifo) \ +if (PREDICT_FALSE (svm_fifo_is_empty (_fifo))) \ + { \ + svm_fifo_unset_event (_fifo); \ + if (svm_fifo_is_empty (_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) { 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; + u64 handle; + u32 sid; + + switch (e->event_type) + { + case FIFO_EVENT_APP_RX: + vcl_fifo_rx_evt_valid_or_break (e->fifo); + sid = e->fifo->client_session_index; + session = vcl_session_get (wrk, sid); + if (!session) + break; + 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 (wrk, 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: + vcl_fifo_rx_evt_valid_or_break (e->fifo); + session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0); + if (!session) + break; + sid = session->session_index; + if (sid < n_bits && read_map) + { + clib_bitmap_set_no_check (read_map, sid, 1); + *bits_set += 1; + } + break; + case SESSION_IO_EVT_CT_RX: + session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1); + if (!session) + break; + sid = session->session_index; + 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 = vcl_session_table_lookup_listener (wrk, 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->session_index; + 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 (wrk, connected_msg); + break; + case SESSION_CTRL_EVT_DISCONNECTED: + disconnected_msg = (session_disconnected_msg_t *) e->data; + sid = vcl_session_index_from_vpp_handle (wrk, 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 (wrk, (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; + } +} + +static int +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) +{ 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)) @@ -1630,98 +1876,10 @@ vcl_select_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq, { 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 (wrk, 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 (wrk, 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 (wrk, e->fifo, 0); - sid = session->session_index; - if (sid < n_bits && read_map) - { - clib_bitmap_set_no_check (read_map, sid, 1); - *bits_set += 1; - } - break; - case SESSION_IO_EVT_CT_RX: - session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1); - sid = session->session_index; - 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 = vcl_session_table_lookup_listener (wrk, 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->session_index; - 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 (wrk, connected_msg); - break; - case SESSION_CTRL_EVT_DISCONNECTED: - disconnected_msg = (session_disconnected_msg_t *) e->data; - sid = vcl_session_index_from_vpp_handle (wrk, - 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 (wrk, - (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 (wrk->mq_msg_vector); return *bits_set; } @@ -1792,30 +1950,30 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, 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; + int rv, i; ASSERT (sizeof (clib_bitmap_t) == sizeof (long int)); if (n_bits && read_map) { clib_bitmap_validate (wrk->rd_bitmap, minbits); - clib_memcpy (wrk->rd_bitmap, read_map, - vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t)); + clib_memcpy_fast (wrk->rd_bitmap, read_map, + vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t)); memset (read_map, 0, vec_len (wrk->rd_bitmap) * sizeof (clib_bitmap_t)); } if (n_bits && write_map) { clib_bitmap_validate (wrk->wr_bitmap, minbits); - clib_memcpy (wrk->wr_bitmap, write_map, - vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t)); + clib_memcpy_fast (wrk->wr_bitmap, write_map, + vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t)); memset (write_map, 0, vec_len (wrk->wr_bitmap) * sizeof (clib_bitmap_t)); } if (n_bits && except_map) { clib_bitmap_validate (wrk->ex_bitmap, minbits); - clib_memcpy (wrk->ex_bitmap, except_map, - vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t)); + clib_memcpy_fast (wrk->ex_bitmap, except_map, + vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t)); memset (except_map, 0, vec_len (wrk->ex_bitmap) * sizeof (clib_bitmap_t)); } @@ -1830,9 +1988,9 @@ vppcom_select (unsigned long n_bits, unsigned long *read_map, 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); @@ -1850,9 +2008,9 @@ check_rd: 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); @@ -1866,6 +2024,13 @@ 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 (wrk, n_bits, read_map, write_map, except_map, time_to_wait, &bits_set); @@ -1977,7 +2142,7 @@ vppcom_epoll_create (void) VDBG (0, "VCL<%d>: Created vep_idx %u / sid %u!", getpid (), vep_session->session_index, vep_session->session_index); - return (vep_session->session_index); + return vcl_session_handle (vep_session); } int @@ -2037,7 +2202,8 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, if (vep_session->vep.next_sh != ~0) { vcl_session_t *next_session; - next_session = vcl_session_get (wrk, vep_session->vep.next_sh); + 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 " @@ -2121,7 +2287,7 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, else { vcl_session_t *prev_session; - prev_session = vcl_session_get (wrk, session->vep.prev_sh); + 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 " @@ -2135,7 +2301,7 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, if (session->vep.next_sh != ~0) { vcl_session_t *next_session; - next_session = vcl_session_get (wrk, session->vep.next_sh); + 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 " @@ -2168,10 +2334,9 @@ done: return rv; } -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) +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; @@ -2180,11 +2345,138 @@ vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq, u32 sid = ~0, session_events; vcl_session_msg_t *vcl_msg; vcl_session_t *session; + u8 add_event = 0; + + switch (e->event_type) + { + case FIFO_EVENT_APP_RX: + ASSERT (e->fifo->client_thread_index == vcl_get_worker_index ()); + vcl_fifo_rx_evt_valid_or_break (e->fifo); + sid = e->fifo->client_session_index; + session = vcl_session_get (wrk, sid); + 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 FIFO_EVENT_APP_TX: + sid = e->fifo->client_session_index; + session = vcl_session_get (wrk, 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: + vcl_fifo_rx_evt_valid_or_break (e->fifo); + session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 0); + sid = session->session_index; + 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_CT_RX: + session = vcl_ct_session_get_from_fifo (wrk, e->fifo, 1); + sid = session->session_index; + 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 = vcl_session_table_lookup_listener (wrk, 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 (wrk, connected_msg); + /* Generate EPOLLOUT because there's no connected event */ + sid = vcl_session_index_from_vpp_handle (wrk, connected_msg->handle); + session = vcl_session_get (wrk, 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_index_from_vpp_handle (wrk, disconnected_msg->handle); + if (!(session = vcl_session_get (wrk, 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 (wrk, (session_reset_msg_t *) e->data); + if (!(session = vcl_session_get (wrk, 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: + 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)) { @@ -2209,142 +2501,28 @@ vcl_epoll_wait_handle_mq (vcl_worker_t * wrk, svm_msg_q_t * mq, vcl_mq_dequeue_batch (wrk, mq); svm_msg_q_unlock (mq); +handle_dequeued: 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); - add_event = 0; - switch (e->event_type) - { - case FIFO_EVENT_APP_RX: - sid = e->fifo->client_session_index; - session = vcl_session_get (wrk, 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 (wrk, 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 (wrk, e->fifo, 0); - sid = session->session_index; - 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 (wrk, e->fifo, 1); - sid = session->session_index; - 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 = vcl_session_table_lookup_listener (wrk, 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 (wrk, connected_msg); - /* Generate EPOLLOUT because there's no connected event */ - sid = vcl_session_index_from_vpp_handle (wrk, - connected_msg->handle); - session = vcl_session_get (wrk, 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_index_from_vpp_handle (wrk, - disconnected_msg->handle); - if (!(session = vcl_session_get (wrk, 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 (wrk, - (session_reset_msg_t *) e->data); - if (!(session = vcl_session_get (wrk, 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; - } + if (*num_ev < maxevents) + vcl_epoll_wait_handle_mq_event (wrk, e, events, num_ev); + else + vec_add1 (wrk->unhandled_evts_vector, *e); 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 (wrk, sid); - session->vep.ev.events = 0; - } - *num_ev += 1; - if (*num_ev == maxevents) - break; - } } - vec_reset_length (wrk->mq_msg_vector); + return *num_ev; } static int vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events, - int maxevents, double wait_for_time) + 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; wait_for_time = (wait_for_time == -1) ? (double) 10e9 : wait_for_time; @@ -2355,34 +2533,34 @@ vppcom_epoll_wait_condvar (vcl_worker_t * wrk, struct epoll_event *events, vcl_ct_registration_lock (wrk); /* *INDENT-OFF* */ pool_foreach (cr, wrk->cut_through_registrations, ({ - vcl_epoll_wait_handle_mq (wrk, cr->mq, events, maxevents, 0, &num_ev); + vcl_epoll_wait_handle_mq (wrk, cr->mq, events, maxevents, 0, &n_evts); })); /* *INDENT-ON* */ vcl_ct_registration_unlock (wrk); rv = vcl_epoll_wait_handle_mq (wrk, wrk->app_event_queue, events, - maxevents, num_ev ? 0 : wait_slice, - &num_ev); + maxevents, n_evts ? 0 : wait_slice, + &n_evts); if (rv) total_wait += wait_slice; - if (num_ev) - return num_ev; + if (n_evts) + return n_evts; } while (total_wait < wait_for_time); - return (int) num_ev; + return n_evts; } static int vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events, - int maxevents, double wait_for_time) + 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 (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++) @@ -2391,6 +2569,8 @@ vppcom_epoll_wait_eventfd (vcl_worker_t * wrk, struct epoll_event *events, n_read = read (mqc->mq_fd, &buf, sizeof (buf)); 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; } @@ -2401,6 +2581,8 @@ vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events, { vcl_worker_t *wrk = vcl_worker_get_current (); vcl_session_t *vep_session; + u32 n_evts = 0; + int i; if (PREDICT_FALSE (maxevents <= 0)) { @@ -2410,6 +2592,9 @@ vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events, } 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!", @@ -2419,10 +2604,28 @@ vppcom_epoll_wait (uint32_t vep_handle, struct epoll_event *events, 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) + { + i += 1; + break; + } + } + + vec_delete (wrk->unhandled_evts_vector, i, 0); + } + if (vcm->cfg.use_mq_eventfd) - return vppcom_epoll_wait_eventfd (wrk, events, maxevents, wait_for_time); + return vppcom_epoll_wait_eventfd (wrk, events, maxevents, n_evts, + wait_for_time); - return vppcom_epoll_wait_condvar (wrk, events, maxevents, wait_for_time); + return vppcom_epoll_wait_condvar (wrk, events, maxevents, n_evts, + wait_for_time); } int @@ -2492,11 +2695,11 @@ vppcom_session_attr (uint32_t session_handle, 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 (), @@ -2516,11 +2719,11 @@ vppcom_session_attr (uint32_t session_handle, 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, "VCL<%d>: VPPCOM_ATTR_GET_LCL_ADDR: sid %u, is_ip4 = %u," " addr = %U port %d", getpid (), @@ -2949,6 +3152,10 @@ vppcom_session_attr (uint32_t session_handle, uint32_t op, rv = VPPCOM_EINVAL; break; + case VPPCOM_ATTR_GET_REFCNT: + rv = vcl_session_get_refcnt (session); + break; + default: rv = VPPCOM_EINVAL; break; @@ -2992,11 +3199,11 @@ vppcom_session_recvfrom (uint32_t session_handle, void *buffer, 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; @@ -3031,6 +3238,8 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double 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", @@ -3043,23 +3252,33 @@ 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); + for (i = 0; i < n_sids; i++) + { session = vcl_session_get (wrk, vp[i].sid); 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); if (rv > 0) { - *vp[i].revents |= POLLIN; + vp[i].revents |= POLLIN; num_ev++; } else if (rv < 0) @@ -3067,11 +3286,11 @@ 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++; @@ -3083,7 +3302,7 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) rv = vppcom_session_write_ready (session); if (rv > 0) { - *vp[i].revents |= POLLOUT; + vp[i].revents |= POLLOUT; num_ev++; } else if (rv < 0) @@ -3091,11 +3310,11 @@ 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++; @@ -3104,7 +3323,7 @@ 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++; } } @@ -3120,7 +3339,7 @@ vppcom_poll (vcl_poll_t * vp, uint32_t n_sids, double wait_for_time) { 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); + vp[i].events, vp[i].revents); } } return num_ev; @@ -3139,12 +3358,31 @@ vppcom_session_index (uint32_t session_handle) return session_handle & 0xFFFFFF; } +int +vppcom_session_handle (uint32_t session_index) +{ + return (vcl_get_worker_index () << 24) | session_index; +} + int vppcom_worker_register (void) { if (!vcl_worker_alloc_and_init ()) - return VPPCOM_OK; - return VPPCOM_EEXIST; + return VPPCOM_EEXIST; + + if (vcl_worker_set_bapi ()) + return VPPCOM_EEXIST; + + if (vcl_worker_register_with_vpp ()) + return VPPCOM_EEXIST; + + return VPPCOM_OK; +} + +int +vppcom_worker_index (void) +{ + return vcl_get_worker_index (); } /*