Re: [Xen-devel] [PATCH net-next v3] xen-netfront: avoid packet loss when ethernet header crosses page boundary

2016-09-20 Thread David Miller
From: Vitaly Kuznetsov Date: Mon, 19 Sep 2016 12:53:40 +0200 > Small packet loss is reported on complex multi host network configurations > including tunnels, NAT, ... My investigation led me to the following check > in netback which drops packets: > > if

[Xen-devel] [PATCH net-next v3] xen-netfront: avoid packet loss when ethernet header crosses page boundary

2016-09-19 Thread Vitaly Kuznetsov
Small packet loss is reported on complex multi host network configurations including tunnels, NAT, ... My investigation led me to the following check in netback which drops packets: if (unlikely(txreq.size < ETH_HLEN)) { netdev_err(queue->vif->dev,