From mboxrd@z Thu Jan 1 00:00:00 1970 From: Paul Durrant Subject: Re: xennet: skb rides the rocket: 20 slots Date: Fri, 11 Jan 2013 10:09:24 +0000 Message-ID: <291EDFCB1E9E224A99088639C4762022012CCFEB82DE@LONPMAILBOX01.citrite.net> References: <72958707.20130104172854@eikelenboom.it> <1357556115.7989.13.camel@zakaz.uk.xensource.com> <50EB8091.90705@oracle.com> <323202711.20130108215503@eikelenboom.it> <50ED1800.1080208@oracle.com> <20130109150850.GI18395@phenom.dumpdata.com> <50EEA46E.7000604@oracle.com> <1357820816.9456.15.camel@zakaz.uk.xensource.com> <50EFC079.1000601@oracle.com> <1357898207.9456.112.camel@zakaz.uk.xensource.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <1357898207.9456.112.camel@zakaz.uk.xensource.com> Content-Language: en-US List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xen.org Errors-To: xen-devel-bounces@lists.xen.org To: Ian Campbell , ANNIE LI Cc: Sander Eikelenboom , xen-devel , Konrad Rzeszutek Wilk List-Id: xen-devel@lists.xenproject.org > -----Original Message----- > Without GSO I don't think you should be seeing packets larger than the MTU, > which would normally be either ~1500 or ~9000 and fit easily within any > sensible negotiation for the max frags. I don't think you should worry unduly > about this case. > A stack could still send down a packet with one byte per frag though, right? A copy-and-coalesce path would still be needed in this case. Paul