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authorFlorin Coras <fcoras@cisco.com>2019-11-20 18:34:58 -0800
committerDave Barach <openvpp@barachs.net>2019-11-21 20:12:24 +0000
commitf4ce6ba22541de1d08b69e8123493e87ec5acef0 (patch)
tree2e10baf1593e22095d1a75b286df054a87dcbc85 /src/vnet/tcp/tcp_output.c
parentff31ac6809d9913ebd2f58a3a4153a0f419b9a77 (diff)
tcp: add no csum offload config option
Type: feature Change-Id: I77b3ee74229f3c85e99f74bf9000cb5aedbc1760 Signed-off-by: Florin Coras <fcoras@cisco.com>
Diffstat (limited to 'src/vnet/tcp/tcp_output.c')
-rw-r--r--src/vnet/tcp/tcp_output.c36
1 files changed, 11 insertions, 25 deletions
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c
index c06bbf19ef4..d6e1adc9600 100644
--- a/src/vnet/tcp/tcp_output.c
+++ b/src/vnet/tcp/tcp_output.c
@@ -896,26 +896,15 @@ static void
tcp_push_ip_hdr (tcp_worker_ctx_t * wrk, tcp_connection_t * tc,
vlib_buffer_t * b)
{
- tcp_header_t *th = vlib_buffer_get_current (b);
- vlib_main_t *vm = wrk->vm;
if (tc->c_is_ip4)
{
- ip4_header_t *ih;
- ih = vlib_buffer_push_ip4 (vm, b, &tc->c_lcl_ip4,
- &tc->c_rmt_ip4, IP_PROTOCOL_TCP,
- tcp_csum_offload (tc));
- th->checksum = ip4_tcp_udp_compute_checksum (vm, b, ih);
+ vlib_buffer_push_ip4 (wrk->vm, b, &tc->c_lcl_ip4, &tc->c_rmt_ip4,
+ IP_PROTOCOL_TCP, tcp_csum_offload (tc));
}
else
{
- ip6_header_t *ih;
- int bogus = ~0;
-
- ih = vlib_buffer_push_ip6_custom (vm, b, &tc->c_lcl_ip6,
- &tc->c_rmt_ip6, IP_PROTOCOL_TCP,
- tc->ipv6_flow_label);
- th->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b, ih, &bogus);
- ASSERT (!bogus);
+ vlib_buffer_push_ip6_custom (wrk->vm, b, &tc->c_lcl_ip6, &tc->c_rmt_ip6,
+ IP_PROTOCOL_TCP, tc->ipv6_flow_label);
}
}
@@ -2270,19 +2259,16 @@ always_inline void
tcp_output_push_ip (vlib_main_t * vm, vlib_buffer_t * b0,
tcp_connection_t * tc0, u8 is_ip4)
{
- u8 __clib_unused *ih0;
- tcp_header_t __clib_unused *th0 = vlib_buffer_get_current (b0);
-
- TCP_EVT (TCP_EVT_OUTPUT, tc0, th0->flags, b0->current_length);
+ TCP_EVT (TCP_EVT_OUTPUT, tc0,
+ ((tcp_header_t *) vlib_buffer_get_current (b0))->flags,
+ b0->current_length);
if (is_ip4)
- ih0 = vlib_buffer_push_ip4 (vm, b0, &tc0->c_lcl_ip4, &tc0->c_rmt_ip4,
- IP_PROTOCOL_TCP, tcp_csum_offload (tc0));
+ vlib_buffer_push_ip4 (vm, b0, &tc0->c_lcl_ip4, &tc0->c_rmt_ip4,
+ IP_PROTOCOL_TCP, tcp_csum_offload (tc0));
else
- ih0 =
- vlib_buffer_push_ip6_custom (vm, b0, &tc0->c_lcl_ip6, &tc0->c_rmt_ip6,
- IP_PROTOCOL_TCP, tc0->ipv6_flow_label);
-
+ vlib_buffer_push_ip6_custom (vm, b0, &tc0->c_lcl_ip6, &tc0->c_rmt_ip6,
+ IP_PROTOCOL_TCP, tc0->ipv6_flow_label);
}
always_inline void