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authorFlorin Coras <fcoras@cisco.com>2018-12-12 10:56:01 -0800
committerDave Barach <openvpp@barachs.net>2018-12-13 13:40:32 +0000
commit42ceddb7cd836a89a12b0b8e623b06bc4c0cc0cb (patch)
tree9731e8708e3ad9d96d418068d59743dbd8e69658 /src/vnet/tcp/tcp.c
parent413f4a5b2123c1625d615315db293a080078482b (diff)
session/tcp: support tx flush mark
For tcp this means that the last enqueued data goes out with a psh bit set. Change-Id: I29d357ecae6f02e748b59a7b799150ec73d14ba2 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp.c')
-rw-r--r--src/vnet/tcp/tcp.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c
index f703d634b54..6d6a880eda8 100644
--- a/src/vnet/tcp/tcp.c
+++ b/src/vnet/tcp/tcp.c
@@ -1123,6 +1123,16 @@ tcp_session_push_header (transport_connection_t * tconn, vlib_buffer_t * b)
return tcp_push_header (tc, b);
}
+static void
+tcp_session_flush_data (transport_connection_t * tconn)
+{
+ tcp_connection_t *tc = (tcp_connection_t *) tconn;
+ if (tc->flags & TCP_CONN_PSH_PENDING)
+ return;
+ tc->flags |= TCP_CONN_PSH_PENDING;
+ tc->psh_seq = tc->snd_una_max + transport_max_tx_dequeue (tconn) - 1;
+}
+
/* *INDENT-OFF* */
const static transport_proto_vft_t tcp_proto = {
.enable = vnet_tcp_enable_disable,
@@ -1139,6 +1149,7 @@ const static transport_proto_vft_t tcp_proto = {
.send_space = tcp_session_send_space,
.update_time = tcp_update_time,
.tx_fifo_offset = tcp_session_tx_fifo_offset,
+ .flush_data = tcp_session_flush_data,
.format_connection = format_tcp_session,
.format_listener = format_tcp_listener_session,
.format_half_open = format_tcp_half_open_session,