virtio: vhost checksum problem for ipv6
When checksum is enable for IPv6, it erroneously set the flag
VNET_BUFFER_F_OFFLOAD_IP_CKSUM. That flag is meant for ip4 packets only.
Type: fix
Ticket:
@@ -275,14 +275,14 @@ vhost_user_handle_rx_offload (vlib_buffer_t * b0, u8 * b0_data,
vnet_buffer (b0)->l4_hdr_offset = hdr->csum_start;
b0->flags |= (VNET_BUFFER_F_L2_HDR_OFFSET_VALID |
VNET_BUFFER_F_L3_HDR_OFFSET_VALID |
- VNET_BUFFER_F_L4_HDR_OFFSET_VALID |
- VNET_BUFFER_F_OFFLOAD_IP_CKSUM);
+ VNET_BUFFER_F_L4_HDR_OFFSET_VALID);
if (PREDICT_TRUE (ethertype == ETHERNET_TYPE_IP4))
{
ip4_header_t *ip4 = (ip4_header_t *) (b0_data + l2hdr_sz);
l4_proto = ip4->protocol;
- b0->flags |= VNET_BUFFER_F_IS_IP4;
+ b0->flags |= (VNET_BUFFER_F_IS_IP4 |
+ VNET_BUFFER_F_OFFLOAD_IP_CKSUM);
}
else if (PREDICT_TRUE (ethertype == ETHERNET_TYPE_IP6))
{
