v6:
1. rename to guest_hdrlen
2. introduce a function virtio_net_set_hdrlen to set the hdrlen
The commit be50da3e9d4a ("net: virtio_net: implement exact header length
guest feature") introduces support for the VIRTIO_NET_F_GUEST_HDRLEN
feature in virtio-net.
This feature requires virtio-net to set hdr_len to the actual header
length of the packet when transmitting, the number of
bytes from the start of the packet to the beginning of the
transport-layer payload.
However, in practice, hdr_len was being set using skb_headlen(skb),
which is clearly incorrect. This path set fixes that issue.
As discussed in [0], this version checks the VIRTIO_NET_F_GUEST_HDRLEN is
negotiated.
[0]:
http://lore.kernel.org/all/[email protected]
Xuan Zhuo (2):
virtio-net: correct hdr_len handling for VIRTIO_NET_F_GUEST_HDRLEN
virtio-net: correct hdr_len handling for tunnel gso
drivers/net/tun_vnet.h | 2 +-
drivers/net/virtio_net.c | 8 +++--
include/linux/virtio_net.h | 71 ++++++++++++++++++++++++++++++--------
3 files changed, 64 insertions(+), 17 deletions(-)
--
2.32.0.3.g01195cf9f
