diff options
| author |   Dave Barach <dbarach@cisco.com> | 2017-07-19 08:48:09 -0400 |
|---|---|---|
| committer |   Damjan Marion <dmarion.lists@gmail.com> | 2017-07-19 16:01:44 +0000 |
| commit | c4423229e2ed51084fb277570bfde097abaf7c97 (patch) | |
| tree | 9c77c21970ecce183521cc780e978d59abac320e /src | |
| parent | 60c1223acb21d9cc5925b14da3cb186155941624 (diff) | |
Fix IP checksum offload metadata setup
Change-Id: Idf4f8b02337551670d6b7ce1a03799de9c53d19a
Signed-off-by: Dave Barach <dave@barachs.net>
Diffstat (limited to 'src')
| -rw-r--r-- | src/vnet/ip/ip4.h | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/src/vnet/ip/ip4.h b/src/vnet/ip/ip4.h index 19198bcb..872b516c 100644 --- a/src/vnet/ip/ip4.h +++ b/src/vnet/ip/ip4.h @@ -347,8 +347,18 @@ vlib_buffer_push_ip4 (vlib_main_t * vm, vlib_buffer_t * b, ih->src_address.as_u32 = src->as_u32; ih->dst_address.as_u32 = dst->as_u32; - ih->checksum = 0; - b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM | VNET_BUFFER_F_IS_IP4; + /* Offload ip4 header checksum generation */ + if (1) + { + ih->checksum = 0; + b->flags |= VNET_BUFFER_F_OFFLOAD_IP_CKSUM | VNET_BUFFER_F_IS_IP4; + vnet_buffer (b)->l3_hdr_offset = (u8 *) ih - b->data; + vnet_buffer (b)->l4_hdr_offset = vnet_buffer (b)->l3_hdr_offset + + sizeof (*ih); + } + else + ih->checksum = ip4_header_checksum (ih); + return ih; } #endif /* included_ip_ip4_h */ |