diff options
| author |   Simon Zhang <yuwei1.zhang@intel.com> | 2019-09-24 21:16:56 +0800 |
|---|---|---|
| committer |   Andrew Yourtchenko <ayourtch@gmail.com> | 2019-10-22 11:18:01 +0000 |
| commit | 4ac265adc6560ae19b3877ef1b61ac0b2ad703e2 (patch) | |
| tree | 74dad0c5a3e093685d672fa38a4ea7d9e1cd282b /src/vnet/tcp/tcp_output.c | |
| parent | be2d536f87e996ba0067af0ea5fab6dd45d20822 (diff) | |
tcp: fix tso not work in single buffer issue
Type: fix
Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
Change-Id: Iddb6fd41812e8c97af58859ef43279cfc0f9d1df
Signed-off-by: Simon Zhang <yuwei1.zhang@intel.com>
(cherry picked from commit 8a047ed741072bdb8d93b0841473eae06ae3c9d0)
Diffstat (limited to 'src/vnet/tcp/tcp_output.c')
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 13 |
1 files changed, 8 insertions, 5 deletions
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index 081a6bf521a..a7b0e398d36 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -2261,13 +2261,16 @@ tcp_output_push_ip (vlib_main_t * vm, vlib_buffer_t * b0, always_inline void tcp_check_if_gso (tcp_connection_t * tc, vlib_buffer_t * b) { - if (PREDICT_TRUE (!(b->flags & VLIB_BUFFER_TOTAL_LENGTH_VALID))) + if (!tc->is_tso) return; - u16 data_len = - b->current_length + b->total_length_not_including_first_buffer - - sizeof (tcp_header_t) - tc->snd_opts_len; + u16 data_len = b->current_length - sizeof (tcp_header_t) - tc->snd_opts_len; - if (data_len > tc->snd_mss) + if (PREDICT_FALSE (b->flags & VLIB_BUFFER_TOTAL_LENGTH_VALID)) + data_len += b->total_length_not_including_first_buffer; + + if (PREDICT_TRUE (data_len <= tc->snd_mss)) + return; + else { ASSERT ((b->flags & VNET_BUFFER_F_L3_HDR_OFFSET_VALID) != 0); ASSERT ((b->flags & VNET_BUFFER_F_L4_HDR_OFFSET_VALID) != 0); |