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Re: [Xen-devel] [PATCH] Network Checksum Removal


  • To: Keir Fraser <Keir.Fraser@xxxxxxxxxxxx>
  • From: Bin Ren <bin.ren@xxxxxxxxx>
  • Date: Mon, 23 May 2005 19:53:42 +0100
  • Cc: Andrew Theurer <habanero@xxxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, Jon Mason <jdmason@xxxxxxxxxx>
  • Delivery-date: Mon, 23 May 2005 18:53:07 +0000
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  • List-id: Xen developer discussion <xen-devel.lists.xensource.com>

Fantastic! It's working :-D

Thanks a great deal,
Bin

On 5/23/05, Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> wrote:
> 
> I think I found the problem, and I've checked in a fix.
> 
> Bin: can you try dom0->domU networking with latest unstable tree?
> Hopefully your problem is fixed.
> 
> As further work on this, I think I chose a bad name for the
> 'proto_csum_valid' field because sometimes it is set for local packets
> that have had no csum poked into the packet at all. Something like
> 'proto_data_valid' might be better. And communicating this information
> between domains (i.e., that the csum field is blank, but the packet
> data is known good anyway) would be nice. Then domU can decide to add
> the checksum if it passes the packet off to a context that expects a
> valid checksum.
> 
>   -- Keir
> 
> On 23 May 2005, at 19:18, Jon Mason wrote:
> 
> > thanks Bin,
> > I'll take a look at that.
> >
> > Jon
> >
> > On Monday 23 May 2005 01:08 pm, Bin Ren wrote:
> >> It's via the new vif0.0/veth0. I did tcpdump on vif1.0 in dom0 and saw
> >> packets sent by dom0, but got dropped by the netfront on dom1.
> >>
> >> Cheers,
> >> Bin
> 
> 
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> http://lists.xensource.com/xen-devel
>

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