diff options
| author |   Florin Coras <fcoras@cisco.com> | 2018-09-17 22:09:02 -0700 |
|---|---|---|
| committer |   Damjan Marion <dmarion@me.com> | 2018-09-20 10:05:48 +0000 |
| commit | 0e88e851e058f4fb7cc690dbbdb19216ab360d1c (patch) | |
| tree | 94b6117dfd76cc7a6da2ee344f676d7765d086e3 /src/vnet/session/session_node.c | |
| parent | 008dbe109ce2714be69ffb6549a0c0198a07f7d0 (diff) | |
session/svm: add want_tx_event flag to fifo
Have applications use explicit flag to request events from vpp when it
transmits from a full fifo.
Change-Id: I687c8f050a066bd5ce739d880eaec1f286038d95
Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/session/session_node.c')
| -rw-r--r-- | src/vnet/session/session_node.c | 13 |
1 files changed, 7 insertions, 6 deletions
diff --git a/src/vnet/session/session_node.c b/src/vnet/session/session_node.c index f5aed7490ea..e2a6f4c67c6 100644 --- a/src/vnet/session/session_node.c +++ b/src/vnet/session/session_node.c @@ -817,7 +817,7 @@ skip_dequeue: { stream_session_t *s; /* $$$ prefetch 1 ahead maybe */ session_event_t *e; - u8 is_full; + u8 want_tx_evt; e = &fifo_events[i]; switch (e->event_type) @@ -836,18 +836,19 @@ skip_dequeue: clib_warning ("It's dead, Jim!"); continue; } - is_full = svm_fifo_is_full (s->server_tx_fifo); + want_tx_evt = svm_fifo_want_tx_evt (s->server_tx_fifo); /* Spray packets in per session type frames, since they go to * different nodes */ rv = (smm->session_tx_fns[s->session_type]) (vm, node, e, s, &n_tx_packets); if (PREDICT_TRUE (rv == SESSION_TX_OK)) { - /* Notify app there's tx space if not polling */ - if (PREDICT_FALSE (is_full - && !svm_fifo_has_event (s->server_tx_fifo))) - session_dequeue_notify (s); + if (PREDICT_FALSE (want_tx_evt)) + { + svm_fifo_set_want_tx_evt (s->server_tx_fifo, 0); + session_dequeue_notify (s); + } } else if (PREDICT_FALSE (rv == SESSION_TX_NO_BUFFERS)) { |