Re: [Xen-devel] [PATCHv2 net-next] xen-netback: remove unconditional __pskb_pull_tail() in guest Tx path

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

Dropping netdev since this isn't relevant to them, adding Paul

On Wed, 2014-11-05 at 10:50 +0000, David Vrabel wrote:
> - performance: Netback has already grant copied up-to 128 bytes from
>   the first slot of a packet into the linear area. The first slot
>   normally contain all the IPv4/IPv6 and TCP/UDP headers.

Does "normally" here include guests other than Linux? I thought Windows
in particular was prone to splitting the headers into a frag per layer
or thereabouts?

Ian.


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