aboutsummaryrefslogtreecommitdiffstats
path: root/src/vnet/session/node.c
diff options
context:
space:
mode:
authorFlorin Coras <fcoras@cisco.com>2017-07-18 05:38:03 -0400
committerFlorin Coras <fcoras@cisco.com>2017-07-21 19:20:09 -0400
commit6534b7aa13bc5bed15ed87f47bb766405963e9e8 (patch)
tree999524eff2a5c811ef61e65354e6018c8ae3de33 /src/vnet/session/node.c
parent161c59c75c667ce7a3c1d6173723831dc30e994c (diff)
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 <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/node.c')
-rw-r--r--src/vnet/session/node.c73
1 files changed, 73 insertions, 0 deletions
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)