From: Ian Campbell <Ian.Campbell@citrix.com>
To: David Vrabel <david.vrabel@citrix.com>
Cc: xen-devel@lists.xenproject.org,
Malcolm Crossley <malcolm.crossley@citrix.com>,
Paul Durrant <paul.durrant@citrix.com>,
Wei Liu <wei.liu2@citrix.com>
Subject: Re: [PATCHv2 net-next] xen-netback: remove unconditional __pskb_pull_tail() in guest Tx path
Date: Wed, 5 Nov 2014 10:59:32 +0000 [thread overview]
Message-ID: <1415185172.15200.0.camel@citrix.com> (raw)
In-Reply-To: <1415184622-19421-1-git-send-email-david.vrabel@citrix.com>
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" include guests other than Linux? I thought Windows in
particular was prone to splitting the headers into a frag per layer or
thereabouts?
Ian
next prev parent reply other threads:[~2014-11-05 11:02 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1415184622-19421-1-git-send-email-david.vrabel@citrix.com>
2014-11-05 10:57 ` [PATCHv2 net-next] xen-netback: remove unconditional __pskb_pull_tail() in guest Tx path Ian Campbell
2014-11-05 10:58 ` Ian Campbell
2014-11-05 11:01 ` David Vrabel
2014-11-05 10:59 ` Ian Campbell [this message]
2014-11-05 11:17 ` Paul Durrant
2014-11-05 11:20 ` Ian Campbell
2014-11-05 11:24 ` Paul Durrant
2014-11-05 18:07 ` Konrad Rzeszutek Wilk
2014-11-05 19:02 ` annie li
2014-11-06 9:52 ` Paul Durrant
2014-11-06 19:40 ` David Miller
2014-11-05 10:50 David Vrabel
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