diff options
| author |   Dave Barach <dave@barachs.net> | 2017-06-29 09:30:15 -0400 |
|---|---|---|
| committer |   Florin Coras <florin.coras@gmail.com> | 2017-07-18 17:05:01 +0000 |
| commit | 2c0a4f407f565d8dd33ff3a9fada346860d30ad2 (patch) | |
| tree | feef8e57bc4f7b434715bd04c9be218ce215bdd0 /src/vnet/tcp/tcp_output.c | |
| parent | 758137a7b70806dc9ec7a28fbe1bc01bc7df2586 (diff) | |
TCP/UDP checksum offload API
Change-Id: I2cb6ce4e29813f6602b14e6e61713fb381fbcef8
Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src/vnet/tcp/tcp_output.c')
| -rw-r--r-- | src/vnet/tcp/tcp_output.c | 16 |
1 files changed, 13 insertions, 3 deletions
diff --git a/src/vnet/tcp/tcp_output.c b/src/vnet/tcp/tcp_output.c index f34eb797..35f3eba1 100644 --- a/src/vnet/tcp/tcp_output.c +++ b/src/vnet/tcp/tcp_output.c @@ -1485,7 +1485,12 @@ tcp46_output_inline (vlib_main_t * vm, ip4_header_t *ih0; ih0 = vlib_buffer_push_ip4 (vm, b0, &tc0->c_lcl_ip4, &tc0->c_rmt_ip4, IP_PROTOCOL_TCP); - th0->checksum = ip4_tcp_udp_compute_checksum (vm, b0, ih0); + b0->flags |= VNET_BUFFER_F_IS_IP4 | + VNET_BUFFER_F_OFFLOAD_IP_CKSUM | + VNET_BUFFER_F_OFFLOAD_TCP_CKSUM; + vnet_buffer (b0)->l3_hdr_offset = (u8 *) ih0 - b0->data; + vnet_buffer (b0)->l4_hdr_offset = (u8 *) th0 - b0->data; + th0->checksum = 0; } else { @@ -1494,8 +1499,13 @@ tcp46_output_inline (vlib_main_t * vm, ih0 = vlib_buffer_push_ip6 (vm, b0, &tc0->c_lcl_ip6, &tc0->c_rmt_ip6, IP_PROTOCOL_TCP); - th0->checksum = ip6_tcp_udp_icmp_compute_checksum (vm, b0, ih0, - &bogus); + + b0->flags |= VNET_BUFFER_F_IS_IP6 | + VNET_BUFFER_F_OFFLOAD_IP_CKSUM | + VNET_BUFFER_F_OFFLOAD_TCP_CKSUM; + vnet_buffer (b0)->l3_hdr_offset = (u8 *) ih0 - b0->data; + vnet_buffer (b0)->l4_hdr_offset = (u8 *) th0 - b0->data; + th0->checksum = 0; ASSERT (!bogus); } |