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tun: add missing rx stats accounting in tun_xdp_act

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The TUN can be used as vhost-net backend, and it is necessary to
count the packets transmitted from TUN to vhost-net/virtio-net.
However, there are some places in the receive path that were not
taken into account when using XDP. It would be beneficial to also
include new accounting for successfully received bytes using
dev_sw_netstats_rx_add.

Fixes: 761876c857cb ("tap: XDP support")
Signed-off-by: Yunjian Wang <wangyunjian@huawei.com>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Yunjian Wang 2024-01-19 18:22:56 +08:00 committed by David S. Miller
parent 5744ba05e7
commit f1084c427f
1 changed files with 2 additions and 0 deletions
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2
drivers/net/tun.c
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@ -1634,6 +1634,7 @@ static int tun_xdp_act(struct tun_struct *tun, struct bpf_prog *xdp_prog,
dev_core_stats_rx_dropped_inc(tun->dev); dev_core_stats_rx_dropped_inc(tun->dev);
return err; return err;
} }
dev_sw_netstats_rx_add(tun->dev, xdp->data_end - xdp->data);
break; break;
case XDP_TX: case XDP_TX:
err = tun_xdp_tx(tun->dev, xdp); err = tun_xdp_tx(tun->dev, xdp);
@ -1641,6 +1642,7 @@ static int tun_xdp_act(struct tun_struct *tun, struct bpf_prog *xdp_prog,
dev_core_stats_rx_dropped_inc(tun->dev); dev_core_stats_rx_dropped_inc(tun->dev);
return err; return err;
} }
dev_sw_netstats_rx_add(tun->dev, xdp->data_end - xdp->data);
break; break;
case XDP_PASS: case XDP_PASS:
break; break;