From: Michael Ellerman <michael@ellerman.id.au>
To: Olof Johansson <olof@lixom.net>
Cc: linuxppc-dev@ozlabs.org, paulus@samba.org
Subject: Re: [PATCH] [POWERPC] Support setting affinity for U3/U4 MSI sources
Date: Thu, 20 Sep 2007 16:36:06 +1000 [thread overview]
Message-ID: <1190270166.30289.12.camel@concordia.ozlabs.ibm.com> (raw)
In-Reply-To: <20070917201229.GA17302@lixom.net>
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On Mon, 2007-09-17 at 15:12 -0500, Olof Johansson wrote:
> Hook up affinity-setting for U3/U4 MSI interrupt sources.
>
> Tested on Quad G5 with myri10ge.
And a JS21 blade:
# echo 1 > /proc/irq/21/smp_affinity
# cat /proc/interrupts
CPU0 CPU1
21: 126 375 MPIC-U3MSI Edge eth1
# ping -c 1000 -f cradle
1000 packets transmitted, 1000 received, 0% packet loss, time 135ms
# cat /proc/interrupts
CPU0 CPU1
21: 2153 375 MPIC-U3MSI Edge eth1
# echo 2 > /proc/irq/21/smp_affinity
# cat /proc/interrupts
CPU0 CPU1
21: 2174 379 MPIC-U3MSI Edge eth1
# ping -c 1000 -f cradle
1000 packets transmitted, 1000 received, 0% packet loss, time 138ms
# cat /proc/interrupts
CPU0 CPU1
21: 2174 2389 MPIC-U3MSI Edge eth1
Acked-by: Michael Ellerman <michael@ellerman.id.au>
cheers
--
Michael Ellerman
OzLabs, IBM Australia Development Lab
wwweb: http://michael.ellerman.id.au
phone: +61 2 6212 1183 (tie line 70 21183)
We do not inherit the earth from our ancestors,
we borrow it from our children. - S.M.A.R.T Person
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prev parent reply other threads:[~2007-09-20 6:36 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-09-17 20:12 [PATCH] [POWERPC] Support setting affinity for U3/U4 MSI sources Olof Johansson
2007-09-18 4:26 ` Benjamin Herrenschmidt
2007-09-20 6:36 ` Michael Ellerman [this message]
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