netdev - Re : [PATCH] Naming interrupt vectors/niu

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Date:	Tue, 25 Nov 2008 17:19:53 +0000 (GMT)
From:	SEBASTIEN LEGER <sebastienleger@...oo.fr>
To:	Jesper Dangaard Brouer <hawk@...u.dk>,
	Robert Olsson <robert@...ur.slu.se>
Cc:	netdev@...r.kernel.org
Subject: Re : [PATCH] Naming interrupt vectors/niu


Hi,

on multiqueue hardware, isn't RSS meant to bind packets from the same flow on a specific cpu?

So, does it make sense to control RX smp affinity from /proc/irq/*/smp_affinity on multiqueue adapters with RSS support?

thanks,

Sebastien

________________________________
De : Jesper Dangaard Brouer <hawk@...u.dk>
À : Robert Olsson <robert@...ur.slu.se>
Cc : David Miller <davem@...emloft.net>; netdev@...r.kernel.org; Robert.Olsson@...a.slu.se
Envoyé le : Mardi, 25 Novembre 2008, 16h58mn 06s
Objet : Re: [PATCH] Naming interrupt vectors/niu


On Tue, 25 Nov 2008, Robert Olsson wrote:

> A patch to put names on the niu interrupt vectors according the syntax below.
> This is needed to assign correct affinity.
>
> > So on a multiqueue card with 2 RX queues and 2 TX queues we'd
> > have names like:
> >
> >     eth0-rx-0
> >     eth0-rx-1
> >     eth0-tx-0
> >     eth0-tx-1
>
>
> Signed-off-by: Robert Olsson <robert.olsson@....uu.se>

Tested-by: Jesper Dangaard Brouer <jdb@...x.dk>


I have tested the patch and it also works on the Quad 1G SUN NIC.
I really like the idea behind the patch, as it makes it a lot easier to 
get the smp affinity right...

Hilsen
   Jesper Brouer

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