diff options
Diffstat (limited to 'src/vnet/session/node.c')
| -rw-r--r-- | src/vnet/session/node.c | 108 |
1 files changed, 78 insertions, 30 deletions
diff --git a/src/vnet/session/node.c b/src/vnet/session/node.c index fffc8eb385a..3053ccc2642 100644 --- a/src/vnet/session/node.c +++ b/src/vnet/session/node.c @@ -154,7 +154,7 @@ session_tx_fifo_read_and_snd_i (vlib_main_t * vm, vlib_node_runtime_t * node, /* Can't make any progress */ if (snd_space0 == 0 || snd_mss0 == 0) { - vec_add1 (smm->evts_partially_read[thread_index], *e0); + vec_add1 (smm->pending_event_vector[thread_index], *e0); return 0; } @@ -216,7 +216,7 @@ session_tx_fifo_read_and_snd_i (vlib_main_t * vm, vlib_node_runtime_t * node, { if (svm_fifo_set_event (s0->server_tx_fifo)) { - vec_add1 (smm->evts_partially_read[thread_index], *e0); + vec_add1 (smm->pending_event_vector[thread_index], *e0); } return -1; } @@ -324,7 +324,7 @@ session_tx_fifo_read_and_snd_i (vlib_main_t * vm, vlib_node_runtime_t * node, /* If we don't already have new event */ if (svm_fifo_set_event (s0->server_tx_fifo)) { - vec_add1 (smm->evts_partially_read[thread_index], *e0); + vec_add1 (smm->pending_event_vector[thread_index], *e0); } } return 0; @@ -338,7 +338,7 @@ dequeue_fail: if (svm_fifo_set_event (s0->server_tx_fifo)) { - vec_add1 (smm->evts_partially_read[thread_index], *e0); + vec_add1 (smm->pending_event_vector[thread_index], *e0); } vlib_put_next_frame (vm, node, next_index, n_left_to_next + 1); _vec_len (smm->tx_buffers[thread_index]) += 1; @@ -388,12 +388,70 @@ session_event_get_session (session_fifo_event_t * e0, u8 thread_index) return s0; } +void +dump_thread_0_event_queue (void) +{ + session_manager_main_t *smm = vnet_get_session_manager_main (); + vlib_main_t *vm = &vlib_global_main; + u32 my_thread_index = vm->thread_index; + session_fifo_event_t _e, *e = &_e; + stream_session_t *s0; + int i, index; + i8 *headp; + + unix_shared_memory_queue_t *q; + q = smm->vpp_event_queues[my_thread_index]; + + index = q->head; + + for (i = 0; i < q->cursize; i++) + { + headp = (i8 *) (&q->data[0] + q->elsize * index); + clib_memcpy (e, headp, q->elsize); + + switch (e->event_type) + { + case FIFO_EVENT_APP_TX: + s0 = session_event_get_session (e, my_thread_index); + fformat (stdout, "[%04d] TX session %d\n", i, s0->session_index); + break; + + case FIFO_EVENT_DISCONNECT: + s0 = stream_session_get_from_handle (e->session_handle); + fformat (stdout, "[%04d] disconnect session %d\n", i, + s0->session_index); + break; + + case FIFO_EVENT_BUILTIN_RX: + s0 = session_event_get_session (e, my_thread_index); + fformat (stdout, "[%04d] builtin_rx %d\n", i, s0->session_index); + break; + + case FIFO_EVENT_RPC: + fformat (stdout, "[%04d] RPC call %llx with %llx\n", + i, (u64) (e->rpc_args.fp), (u64) (e->rpc_args.arg)); + break; + + default: + fformat (stdout, "[%04d] unhandled event type %d\n", + i, e->event_type); + break; + } + + index++; + + if (index == q->maxsize) + index = 0; + } +} + static uword session_queue_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) { session_manager_main_t *smm = vnet_get_session_manager_main (); - session_fifo_event_t *my_fifo_events, *e; + session_fifo_event_t *my_pending_event_vector, *e; + session_fifo_event_t *my_fifo_events; u32 n_to_dequeue, n_events; unix_shared_memory_queue_t *q; application_t *app; @@ -417,11 +475,13 @@ session_queue_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, if (PREDICT_FALSE (q == 0)) return 0; + my_fifo_events = smm->free_event_vector[my_thread_index]; + /* min number of events we can dequeue without blocking */ n_to_dequeue = q->cursize; - my_fifo_events = smm->fifo_events[my_thread_index]; + my_pending_event_vector = smm->pending_event_vector[my_thread_index]; - if (n_to_dequeue == 0 && vec_len (my_fifo_events) == 0) + if (n_to_dequeue == 0 && vec_len (my_pending_event_vector) == 0) return 0; SESSION_EVT_DBG (SESSION_EVT_DEQ_NODE, 0); @@ -431,7 +491,7 @@ session_queue_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, * over them again without dequeuing new ones. */ /* XXX: Block senders to sessions that can't keep up */ - if (vec_len (my_fifo_events) >= 100) + if (0 && vec_len (my_pending_event_vector) >= 100) { clib_warning ("too many fifo events unsolved"); goto skip_dequeue; @@ -452,7 +512,10 @@ session_queue_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, (void) pthread_cond_broadcast (&q->condvar); pthread_mutex_unlock (&q->mutex); - smm->fifo_events[my_thread_index] = my_fifo_events; + vec_append (my_fifo_events, my_pending_event_vector); + + _vec_len (my_pending_event_vector) = 0; + smm->pending_event_vector[my_thread_index] = my_pending_event_vector; skip_dequeue: n_events = vec_len (my_fifo_events); @@ -483,8 +546,10 @@ skip_dequeue: &n_tx_packets); /* Out of buffers */ if (rv < 0) - goto done; - + { + vec_add1 (smm->pending_event_vector[my_thread_index], *e0); + continue; + } break; case FIFO_EVENT_DISCONNECT: s0 = stream_session_get_from_handle (e0->session_handle); @@ -507,25 +572,8 @@ skip_dequeue: } } -done: - - /* Couldn't process all events. Probably out of buffers */ - if (PREDICT_FALSE (i < n_events)) - { - session_fifo_event_t *partially_read = - smm->evts_partially_read[my_thread_index]; - vec_add (partially_read, &my_fifo_events[i], n_events - i); - vec_free (my_fifo_events); - smm->fifo_events[my_thread_index] = partially_read; - smm->evts_partially_read[my_thread_index] = 0; - } - else - { - vec_free (smm->fifo_events[my_thread_index]); - smm->fifo_events[my_thread_index] = - smm->evts_partially_read[my_thread_index]; - smm->evts_partially_read[my_thread_index] = 0; - } + _vec_len (my_fifo_events) = 0; + smm->free_event_vector[my_thread_index] = my_fifo_events; vlib_node_increment_counter (vm, session_queue_node.index, SESSION_QUEUE_ERROR_TX, n_tx_packets); |