From 1146ff4bcd336d8efc19405f1d83914e6115a01f Mon Sep 17 00:00:00 2001 From: Simon Zhang Date: Mon, 2 Sep 2019 22:54:00 +0800 Subject: tcp: enable gso in tcp hoststack Type: feature Change-Id: If68d07fbe8c6f7fffd2f93c7e854367082927e4f Signed-off-by: Simon Zhang --- src/vnet/tcp/tcp.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) (limited to 'src/vnet/tcp/tcp.c') diff --git a/src/vnet/tcp/tcp.c b/src/vnet/tcp/tcp.c index 5090b7dd2d7..ad9bbff5c0e 100644 --- a/src/vnet/tcp/tcp.c +++ b/src/vnet/tcp/tcp.c @@ -1177,6 +1177,17 @@ tcp_half_open_session_get_transport (u32 conn_index) return &tc->connection; } +static u16 +tcp_session_cal_goal_size (tcp_connection_t * tc) +{ + u16 goal_size = tc->snd_mss; + + goal_size = TCP_MAX_GSO_SZ - tc->snd_mss % TCP_MAX_GSO_SZ; + goal_size = clib_min (goal_size, tc->snd_wnd / 2); + + return goal_size; +} + /** * Compute maximum segment size for session layer. * @@ -1194,6 +1205,11 @@ tcp_session_send_mss (transport_connection_t * trans_conn) * the current state of the connection. */ tcp_update_burst_snd_vars (tc); + if (PREDICT_FALSE (tc->is_tso)) + { + return tcp_session_cal_goal_size (tc); + } + return tc->snd_mss; } -- cgit 1.2.3-korg