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To: Yuanhan Liu <yuanhan.liu@linux.intel.com>, <dev@dpdk.org>
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Date: Sun, 9 Oct 2016 18:46:44 +0800
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Subject: Re: [dpdk-dev] [PATCH 0/6] vhost: add Tx zero copy support
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在 2016/8/23 16:10, Yuanhan Liu 写道:
> The basic idea of Tx zero copy is, instead of copying data from the
> desc buf, here we let the mbuf reference the desc buf addr directly.

Is there problem when push vlan to the mbuf which reference the desc buf addr directly?
We know if guest use virtio_net(kernel) maybe skb has no headroom.