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| author | Jianfeng Tan <jianfeng.tan@linux.alibaba.com> | 2018-09-29 15:41:27 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-10-04 22:23:15 -0700 |
| commit | 9d2f67e43b73e8af7438be219b66a5de0cfa8bd9 (patch) | |
| tree | 015f9d003d764dbb4aea0fde8d2ea6c01eafd577 /net/packet | |
| parent | ca8931948344c485569b04821d1f6bcebccd376b (diff) | |
| download | linux-9d2f67e43b73e8af7438be219b66a5de0cfa8bd9.tar.gz linux-9d2f67e43b73e8af7438be219b66a5de0cfa8bd9.tar.bz2 linux-9d2f67e43b73e8af7438be219b66a5de0cfa8bd9.zip | |
net/packet: fix packet drop as of virtio gso
When we use raw socket as the vhost backend, a packet from virito with
gso offloading information, cannot be sent out in later validaton at
xmit path, as we did not set correct skb->protocol which is further used
for looking up the gso function.
To fix this, we set this field according to virito hdr information.
Fixes: e858fae2b0b8f4 ("virtio_net: use common code for virtio_net_hdr and skb GSO conversion")
Signed-off-by: Jianfeng Tan <jianfeng.tan@linux.alibaba.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/packet')
| -rw-r--r-- | net/packet/af_packet.c | 11 |
1 files changed, 7 insertions, 4 deletions
diff --git a/net/packet/af_packet.c b/net/packet/af_packet.c index 75c92a87e7b2..d6e94dc7e290 100644 --- a/net/packet/af_packet.c +++ b/net/packet/af_packet.c @@ -2715,10 +2715,12 @@ tpacket_error: } } - if (po->has_vnet_hdr && virtio_net_hdr_to_skb(skb, vnet_hdr, - vio_le())) { - tp_len = -EINVAL; - goto tpacket_error; + if (po->has_vnet_hdr) { + if (virtio_net_hdr_to_skb(skb, vnet_hdr, vio_le())) { + tp_len = -EINVAL; + goto tpacket_error; + } + virtio_net_hdr_set_proto(skb, vnet_hdr); } skb->destructor = tpacket_destruct_skb; @@ -2915,6 +2917,7 @@ static int packet_snd(struct socket *sock, struct msghdr *msg, size_t len) if (err) goto out_free; len += sizeof(vnet_hdr); + virtio_net_hdr_set_proto(skb, &vnet_hdr); } skb_probe_transport_header(skb, reserve); |