From 635acbf4b76038023b0b5a9bdae0dc87e13fd308 Mon Sep 17 00:00:00 2001 From: Florin Coras Date: Wed, 31 Jul 2019 14:11:05 -0700 Subject: [PATCH] tcp: honor snd_wnd in fast rxt Type:fix Change-Id: I2f4224a53360f533c086ebde6a3056e60431da87 Signed-off-by: Florin Coras --- src/vnet/tcp/tcp_output.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index 58d2167deb2..010397b9e04 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -1769,11 +1769,14 @@ static int tcp_fast_retransmit_unsent (tcp_worker_ctx_t * wrk, tcp_connection_t * tc, u32 burst_size) { - u32 offset, n_segs = 0, n_written, bi; + u32 offset, n_segs = 0, n_written, bi, available_wnd; vlib_main_t *vm = wrk->vm; vlib_buffer_t *b = 0; offset = tc->snd_nxt - tc->snd_una; + available_wnd = tc->snd_wnd - offset; + burst_size = clib_min (burst_size, available_wnd / tc->snd_mss); + while (n_segs < burst_size) { n_written = tcp_prepare_segment (wrk, tc, offset, tc->snd_mss, &b); -- 2.16.6