diff options
| author | Jesper Dangaard Brouer <brouer@redhat.com> | 2020-05-14 13:50:39 +0300 |
|---|---|---|
| committer | Alexei Starovoitov <ast@kernel.org> | 2020-05-15 07:21:55 +0300 |
| commit | 05afee298afc2f2497b7400b53e9d60fcc24d525 (patch) | |
| tree | dcda0b333a72b6af22edd6bd36a9e65914aef529 /drivers/vhost | |
| parent | fb3e6e9307973d2f70a173f1b33d1054fa2b691f (diff) | |
| download | linux-05afee298afc2f2497b7400b53e9d60fcc24d525.tar.xz | |
vhost_net: Also populate XDP frame size
In vhost_net_build_xdp() the 'buf' that gets queued via an xdp_buff
have embedded a struct tun_xdp_hdr (located at xdp->data_hard_start)
which contains the buffer length 'buflen' (with tailroom for
skb_shared_info). Also storing this buflen in xdp->frame_sz, does not
obsolete struct tun_xdp_hdr, as it also contains a struct
virtio_net_hdr with other information.
Signed-off-by: Jesper Dangaard Brouer <brouer@redhat.com>
Signed-off-by: Alexei Starovoitov <ast@kernel.org>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/bpf/158945343928.97035.4620233649151726289.stgit@firesoul
Diffstat (limited to 'drivers/vhost')
| -rw-r--r-- | drivers/vhost/net.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/vhost/net.c b/drivers/vhost/net.c index 2927f02cc7e1..516519dcc8ff 100644 --- a/drivers/vhost/net.c +++ b/drivers/vhost/net.c @@ -747,6 +747,7 @@ static int vhost_net_build_xdp(struct vhost_net_virtqueue *nvq, xdp->data = buf + pad; xdp->data_end = xdp->data + len; hdr->buflen = buflen; + xdp->frame_sz = buflen; --net->refcnt_bias; alloc_frag->offset += buflen; |