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devices: fix the l2 hdr offset in af_packet transmit side

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Type: fix

af_packet transmit node uses header offsets to set the
appropriate metadata for packet with offload. But
l2_hdr_offset is not correctly set by previous node.
This patch makes use of curren_data field as l2_hdr_offset.

Signed-off-by: Mohsin Kazmi <sykazmi@cisco.com>
Change-Id: I751a725af5c231a443eed22231a867eb7f3894e0
This commit is contained in:
Mohsin Kazmi
2022-10-25 19:23:51 +00:00
parent 4c89b189b2
commit 4561d6d251
1 changed files with 2 additions and 4 deletions
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6
src/vnet/devices/af_packet/device.c
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@ -291,8 +291,7 @@ static_always_inline void
fill_gso_offload (vlib_buffer_t *b0, vnet_virtio_net_hdr_t *vnet_hdr)
{
vnet_buffer_oflags_t oflags = vnet_buffer (b0)->oflags;
i16 l4_hdr_offset =
vnet_buffer (b0)->l4_hdr_offset - vnet_buffer (b0)->l2_hdr_offset;
i16 l4_hdr_offset = vnet_buffer (b0)->l4_hdr_offset - b0->current_data;
if (b0->flags & VNET_BUFFER_F_IS_IP4)
{
ip4_header_t *ip4;
@ -329,8 +328,7 @@ static_always_inline void
fill_cksum_offload (vlib_buffer_t *b0, vnet_virtio_net_hdr_t *vnet_hdr)
{
vnet_buffer_oflags_t oflags = vnet_buffer (b0)->oflags;
i16 l4_hdr_offset =
vnet_buffer (b0)->l4_hdr_offset - vnet_buffer (b0)->l2_hdr_offset;
i16 l4_hdr_offset = vnet_buffer (b0)->l4_hdr_offset - b0->current_data;
if (b0->flags & VNET_BUFFER_F_IS_IP4)
{
ip4_header_t *ip4;