Xen devel - Dec 2008 - [PATCH] Multi-queue support for Netchannel2

The attached patches add vmq (multi-queue) support for netchannel2. (also known
as VMDq)
These patches were based on a previous implementation written for netchannel1 by
Kaushik Kumar Ram.

These patches are based on the latest netchannel2 public trees. Patches 1 and 2
are for the Xen tree and patches 3 and 4 for the linux tree.

This version provides the basic multi-queue functionality but does not include
several optimizations that were implemented in the previous netchannel1 version.
So performance still needs more work and tunnig.

Also the patches do not include changes to network device drivers that are
needed to use this functionality. We expect to make the patches for the Intel
ixgbe driver available soon.

Steven, could you please push these patches to the netchannel2 tree

Thanks

Renato





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> Also the patches do not include changes to network device drivers that are
needed to use this functionality. We expect to make the patches for the Intel
ixgbe driver available soon.
> 
> Steven, could you please push these patches to the netchannel2 tree
Sorry, I''m on holiday until the new year, and won''t have much
access
to test boxes and things like that until then.  Would you mind waiting
a couple of weeks before the patches go in?

Steven.


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> -----Original Message-----
> From: Steven Smith [mailto:steven.smith@eu.citrix.com]
> Sent: Monday, December 22, 2008 2:18 AM
> To: Santos, Jose Renato G
> Cc: xen-devel@lists.xensource.com; Steven Smith; Ian Pratt;
> Keir Fraser; Kaushik Kumar Ram; Williams, Mitch A; Ronciak,
> John; Nakajima, Jun
> Subject: Re: [PATCH] Multi-queue support for Netchannel2
>
> > Also the patches do not include changes to network device
> drivers that are needed to use this functionality. We expect
> to make the patches for the Intel ixgbe driver available soon.
> >
> > Steven, could you please push these patches to the netchannel2 tree
> Sorry, I''m on holiday until the new year, and won''t have
much
> access to test boxes and things like that until then.  Would
> you mind waiting a couple of weeks before the patches go in?
>
  No problem Steven. I am also be on holiday until the new year. We can wait
until you are back to push the changes.
Thanks
  Happy holidays!

  Renato
> Steven.
>
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>
>  No problem Steven. I am also be on holiday until the new 
>year. We can wait until you are back to push the changes.
>Thanks
>  Happy holidays!
>
That works for me - I''d like to get the ixgbe patches out this week,
but I''m currently snowed in, and I don''t have the right
equipment
at home to work on Xen.  And I''m on vacation next week.

Have a Merry Christmas, everyone.  Stay warm.

-Mitch
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> > > Also the patches do not include changes to network device
> > drivers that are needed to use this functionality. We expect
> > to make the patches for the Intel ixgbe driver available soon.
> > >
> > > Steven, could you please push these patches to the netchannel2
tree
> > Sorry, I''m on holiday until the new year, and won''t
have much
> > access to test boxes and things like that until then.  Would
> > you mind waiting a couple of weeks before the patches go in?
>   No problem Steven. I am also be on holiday until the new year. We can
wait until you are back to push the changes.
Okay, they''re in now.  I don''t have any VMQ hardware handy at
the
moment, so I''ve not tested it beyond confirming that non-VMQ operation
still seems to work.

Steven.


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Thanks, Steven.
Even if you had the hardware you would not be able to test it since the patches
did not include the ixgbe modifications that are needed for to use VMDq with
Xen.
Mitch William should be posting those patches sometime soon.
I have tested the code and it was working properly.
But we still need to work on improving its performance.

Renato
> -----Original Message-----
> From: Steven Smith [mailto:steven.smith@citrix.com] 
> Sent: Wednesday, January 07, 2009 5:34 AM
> To: Santos, Jose Renato G
> Cc: Steven Smith; xen-devel@lists.xensource.com; Ian Pratt; 
> Keir Fraser; Kaushik Kumar Ram; Williams, Mitch A; Ronciak, 
> John; Nakajima, Jun
> Subject: Re: [PATCH] Multi-queue support for Netchannel2
> 
> > > > Also the patches do not include changes to network device
> > > drivers that are needed to use this functionality. We 
> expect to make 
> > > the patches for the Intel ixgbe driver available soon.
> > > >
> > > > Steven, could you please push these patches to the
netchannel2
> > > > tree
> > > Sorry, I''m on holiday until the new year, and
won''t have
> much access 
> > > to test boxes and things like that until then.  Would you mind 
> > > waiting a couple of weeks before the patches go in?
> >   No problem Steven. I am also be on holiday until the new 
> year. We can wait until you are back to push the changes.
> Okay, they''re in now.  I don''t have any VMQ hardware
handy at
> the moment, so I''ve not tested it beyond confirming that 
> non-VMQ operation still seems to work.
> 
> Steven.
> 
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>
>Thanks, Steven.
>Even if you had the hardware you would not be able to test it 
>since the patches did not include the ixgbe modifications that 
>are needed for to use VMDq with Xen.
>Mitch William should be posting those patches sometime soon.
>I have tested the code and it was working properly.
>But we still need to work on improving its performance.
>
>Renato
I''m working on it, but haven''t been able to get any traffic to
pass as of yet.  I''m a bit reluctant to post code until I actually
see it work.  Guess I''m just funny that way.

-Mitch
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