X-Git-Url: https://gerrit.fd.io/r/gitweb?a=blobdiff_plain;f=src%2Fvcl%2Fvppcom.c;h=f92e97c7934722fbb69f0274124ba10b32f71dec;hb=1f40ab467aa590381c68aac44a8d086323c04c32;hp=0f824dcf6211d95a17ae95703784176a3ff791d4;hpb=436c7badcdd9bcc7047adf1a59ef317a031da413;p=vpp.git diff --git a/src/vcl/vppcom.c b/src/vcl/vppcom.c index 0f824dcf621..f92e97c7934 100644 --- a/src/vcl/vppcom.c +++ b/src/vcl/vppcom.c @@ -361,6 +361,8 @@ vcl_session_accepted_handler (vcl_worker_t * wrk, session_accepted_msg_t * mp, session->transport.lcl_ip = mp->lcl.ip; session->session_type = listen_session->session_type; session->is_dgram = vcl_proto_is_dgram (session->session_type); + if (session->is_dgram) + session->flags |= (listen_session->flags & VCL_SESSION_F_CONNECTED); session->listener_index = listen_session->session_index; listen_session->n_accepted_sessions++; @@ -967,7 +969,7 @@ 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); + VDBG (1, "Unmapped segment: %lx", msg->segment_handle); } static void @@ -2281,12 +2283,17 @@ vppcom_session_write_inline (vcl_worker_t *wrk, vcl_session_t *s, void *buf, et = SESSION_IO_EVT_TX_FLUSH; if (is_dgram) - n_write = - app_send_dgram_raw_gso (tx_fifo, &s->transport, s->vpp_evt_q, buf, n, - s->gso_size, et, 0 /* do_evt */, SVM_Q_WAIT); + { + et = vcl_session_dgram_tx_evt (s, et); + n_write = + app_send_dgram_raw_gso (tx_fifo, &s->transport, s->vpp_evt_q, buf, n, + s->gso_size, et, 0 /* do_evt */, SVM_Q_WAIT); + } else - n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et, - 0 /* do_evt */ , SVM_Q_WAIT); + { + n_write = app_send_stream_raw (tx_fifo, s->vpp_evt_q, buf, n, et, + 0 /* do_evt */, SVM_Q_WAIT); + } if (svm_fifo_set_event (s->tx_fifo)) app_send_io_evt_to_vpp ( @@ -2409,11 +2416,13 @@ vcl_select_handle_mq_event (vcl_worker_t * wrk, session_event_t * e, sid = e->session_index; 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; - } + if (!(sid < n_bits && write_map)) + break; + clib_bitmap_set_no_check ((uword *) write_map, sid, 1); + *bits_set += 1; + s = vcl_session_get (wrk, sid); + /* We didn't have a fifo when the event was added */ + vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); break; case SESSION_CTRL_EVT_DISCONNECTED: disconnected_msg = (session_disconnected_msg_t *) e->data; @@ -2625,8 +2634,7 @@ vppcom_select (int n_bits, vcl_si_set * read_map, vcl_si_set * write_map, } else { - svm_fifo_t *txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo; - svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF); + vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF); } } @@ -2676,7 +2684,7 @@ vep_verify_epoll_chain (vcl_worker_t * wrk, u32 vep_handle) u32 sh = vep_handle; vcl_session_t *s; - if (VPPCOM_DEBUG <= 2) + if (VPPCOM_DEBUG <= 3) return; s = vcl_session_get_w_handle (wrk, vep_handle); @@ -2788,7 +2796,6 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, int rv = VPPCOM_OK, add_evt = 0; vcl_session_t *vep_session; vcl_session_t *s; - svm_fifo_t *txf; if (vep_handle == session_handle) { @@ -2861,16 +2868,22 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, s->flags |= VCL_SESSION_F_IS_VEP_SESSION; vep_session->vep.next_sh = session_handle; - txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo; - if (txf && (event->events & EPOLLOUT)) - svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); - - /* Generate EPOLLOUT if tx fifo not full */ - if ((event->events & EPOLLOUT) && (vcl_session_write_ready (s) > 0)) + if ((event->events & EPOLLOUT)) { - vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET, - SESSION_IO_EVT_TX); - add_evt = 1; + int write_ready = vcl_session_write_ready (s); + + vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + if (write_ready > 0) + { + /* Generate EPOLLOUT if tx fifo not full */ + vcl_epoll_ctl_add_unhandled_event ( + wrk, s, event->events & EPOLLET, SESSION_IO_EVT_TX); + add_evt = 1; + } + else + { + vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF); + } } /* Generate EPOLLIN if rx fifo has data */ if ((event->events & EPOLLIN) && (vcl_session_read_ready (s) > 0)) @@ -2916,13 +2929,23 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, goto done; } - /* Generate EPOLLOUT if session write ready nd event was not on */ - if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT) && - (vcl_session_write_ready (s) > 0)) + /* Generate EPOLLOUT if session write ready and event was not on */ + if ((event->events & EPOLLOUT) && !(s->vep.ev.events & EPOLLOUT)) { - vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET, - SESSION_IO_EVT_TX); + /* Fifo size load acq synchronized with update store rel */ + int write_ready = vcl_session_write_ready (s); + + vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + if (write_ready > 0) + vcl_epoll_ctl_add_unhandled_event (wrk, s, event->events & EPOLLET, + SESSION_IO_EVT_TX); + else + /* Request deq ntf in case dequeue happened while updating flag */ + vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF); } + else if (!(event->events & EPOLLOUT)) + vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + /* Generate EPOLLIN if session read ready and event was not on */ if ((event->events & EPOLLIN) && !(s->vep.ev.events & EPOLLIN) && (vcl_session_read_ready (s) > 0)) @@ -2932,14 +2955,7 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, } s->vep.et_mask = VEP_DEFAULT_ET_MASK; s->vep.ev = *event; - txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo; - if (txf) - { - if (event->events & EPOLLOUT) - svm_fifo_add_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); - else - svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); - } + 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; @@ -2999,11 +3015,7 @@ vppcom_epoll_ctl (uint32_t vep_handle, int op, uint32_t session_handle, s->flags &= ~VCL_SESSION_F_IS_VEP_SESSION; if (vcl_session_is_open (s)) - { - txf = vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo; - if (txf) - svm_fifo_del_want_deq_ntf (txf, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); - } + vcl_session_del_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); VDBG (1, "EPOLL_CTL_DEL: vep_idx %u, sh %u!", vep_handle, session_handle); @@ -3055,14 +3067,15 @@ vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e, s = vcl_session_get (wrk, sid); if (!s || !vcl_session_is_open (s)) break; + svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ? s->ct_tx_fifo : + s->tx_fifo); session_events = s->vep.ev.events; - if (!(EPOLLOUT & session_events)) + if (!(EPOLLOUT & session_events) || + (s->vep.lt_next != VCL_INVALID_SESSION_INDEX)) break; add_event = 1; events[*num_ev].events = EPOLLOUT; session_evt_data = s->vep.ev.data.u64; - svm_fifo_reset_has_deq_ntf (vcl_session_is_ct (s) ? - s->ct_tx_fifo : s->tx_fifo); break; case SESSION_CTRL_EVT_ACCEPTED: if (!e->postponed) @@ -3093,12 +3106,10 @@ vcl_epoll_wait_handle_mq_event (vcl_worker_t * wrk, session_event_t * e, break; session_events = s->vep.ev.events; /* Generate EPOLLOUT because there's no connected event */ - if (!(EPOLLOUT & session_events) || !s->tx_fifo) + if (!(EPOLLOUT & session_events)) break; /* We didn't have a fifo when the event was added */ - svm_fifo_add_want_deq_ntf ( - (vcl_session_is_ct (s) ? s->ct_tx_fifo : s->tx_fifo), - SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); + vcl_session_add_want_deq_ntf (s, SVM_FIFO_WANT_DEQ_NOTIF_IF_FULL); add_event = 1; events[*num_ev].events = EPOLLOUT; session_evt_data = s->vep.ev.data.u64; @@ -3354,7 +3365,7 @@ static void vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events, int maxevents, u32 *n_evts) { - u32 add_event = 0, next; + u32 add_event = 0, evt_flags = 0, next, *to_remove = 0, *si; vcl_session_t *s; u64 evt_data; int rv; @@ -3372,26 +3383,28 @@ vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events, if ((s->vep.ev.events & EPOLLIN) && (rv = vcl_session_read_ready (s))) { add_event = 1; - events[*n_evts].events |= rv > 0 ? EPOLLIN : EPOLLHUP | EPOLLRDHUP; + evt_flags |= rv > 0 ? EPOLLIN : EPOLLHUP | EPOLLRDHUP; evt_data = s->vep.ev.data.u64; } if ((s->vep.ev.events & EPOLLOUT) && (rv = vcl_session_write_ready (s))) { add_event = 1; - events[*n_evts].events |= rv > 0 ? EPOLLOUT : EPOLLHUP | EPOLLRDHUP; + evt_flags |= rv > 0 ? EPOLLOUT : EPOLLHUP | EPOLLRDHUP; evt_data = s->vep.ev.data.u64; } if (!add_event && s->session_state > VCL_STATE_READY) { add_event = 1; - events[*n_evts].events |= EPOLLHUP | EPOLLRDHUP; + evt_flags |= EPOLLHUP | EPOLLRDHUP; evt_data = s->vep.ev.data.u64; } if (add_event) { + events[*n_evts].events = evt_flags; events[*n_evts].data.u64 = evt_data; *n_evts += 1; add_event = 0; + evt_flags = 0; if (EPOLLONESHOT & s->vep.ev.events) s->vep.ev.events = 0; if (*n_evts == maxevents) @@ -3402,12 +3415,17 @@ vcl_epoll_wait_handle_lt (vcl_worker_t *wrk, struct epoll_event *events, } else { - vcl_epoll_lt_del (wrk, s); - if (wrk->ep_lt_current == VCL_INVALID_SESSION_INDEX) - break; + vec_add1 (to_remove, s->session_index); } } while (next != wrk->ep_lt_current); + + vec_foreach (si, to_remove) + { + s = vcl_session_get (wrk, *si); + vcl_epoll_lt_del (wrk, s); + } + vec_free (to_remove); } int