From 6534b7aa13bc5bed15ed87f47bb766405963e9e8 Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Tue, 18 Jul 2017 05:38:03 -0400 Subject: Improvements to tcp rx path and debugging - Increment rcv_nxt for fin packets - Call tcp_segment_rcv only if buffer has data - Parse rcv opts before deleting half-open connection - Fix initial rcv_wnd - Improved event logging Change-Id: I9b83c04f432c4cec832c480b03e534deff02c3b1 Signed-off-by: Florin Coras --- src/vnet/session/node.c | 73 +++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 73 insertions(+) (limited to 'src/vnet/session/node.c') diff --git a/src/vnet/session/node.c b/src/vnet/session/node.c index 983b78b86f7..8d703b0b302 100644 --- a/src/vnet/session/node.c +++ b/src/vnet/session/node.c @@ -443,6 +443,79 @@ dump_thread_0_event_queue (void) } } +static u8 +session_node_cmp_event (session_fifo_event_t * e, svm_fifo_t * f) +{ + stream_session_t *s; + switch (e->event_type) + { + case FIFO_EVENT_APP_RX: + case FIFO_EVENT_APP_TX: + case FIFO_EVENT_BUILTIN_RX: + if (e->fifo == f) + return 1; + break; + case FIFO_EVENT_DISCONNECT: + break; + case FIFO_EVENT_RPC: + s = stream_session_get_from_handle (e->session_handle); + if (!s) + { + clib_warning ("session has event but doesn't exist!"); + break; + } + if (s->server_rx_fifo == f || s->server_tx_fifo == f) + return 1; + break; + default: + break; + } + return 0; +} + +u8 +session_node_lookup_fifo_event (svm_fifo_t * f, session_fifo_event_t * e) +{ + session_manager_main_t *smm = vnet_get_session_manager_main (); + unix_shared_memory_queue_t *q; + session_fifo_event_t *pending_event_vector, *evt; + int i, index, found = 0; + i8 *headp; + u8 thread_index; + + ASSERT (e); + thread_index = f->master_thread_index; + /* + * Search evt queue + */ + q = smm->vpp_event_queues[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); + found = session_node_cmp_event (e, f); + if (found) + break; + if (++index == q->maxsize) + index = 0; + } + /* + * Search pending events vector + */ + pending_event_vector = smm->pending_event_vector[thread_index]; + vec_foreach (evt, pending_event_vector) + { + found = session_node_cmp_event (evt, f); + if (found) + { + clib_memcpy (e, evt, sizeof (*evt)); + break; + } + } + return found; +} + static uword session_queue_node_fn (vlib_main_t * vm, vlib_node_runtime_t * node, vlib_frame_t * frame) -- cgit 1.2.3-korg