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hv_netvsc: Check VF datapath when sending traffic to VF

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The driver needs to check if the datapath has been switched to VF before
sending traffic to VF.

Signed-off-by: Long Li <longli@microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Long Li 2021-01-08 16:53:41 -08:00 committed by Jakub Kicinski
parent 2c82b7fe21
commit 69d25a6cf4
1 changed files with 2 additions and 1 deletions
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3
drivers/net/hyperv/netvsc_drv.c
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@ -539,7 +539,8 @@ static int netvsc_xmit(struct sk_buff *skb, struct net_device *net, bool xdp_tx)
*/
vf_netdev = rcu_dereference_bh(net_device_ctx->vf_netdev);
if (vf_netdev && netif_running(vf_netdev) &&
netif_carrier_ok(vf_netdev) && !netpoll_tx_running(net))
netif_carrier_ok(vf_netdev) && !netpoll_tx_running(net) &&
net_device_ctx->data_path_is_vf)
return netvsc_vf_xmit(net, vf_netdev, skb);
/* We will atmost need two pages to describe the rndis