From: Stephen Hemminger <shemminger@linux-foundation.org>
To: Jan Engelhardt <jengelh@linux01.gwdg.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: IRQ splitting
Date: Thu, 5 Apr 2007 12:45:45 -0700 [thread overview]
Message-ID: <20070405124545.1269b1b2@localhost> (raw)
In-Reply-To: <Pine.LNX.4.61.0704052236110.6042@yvahk01.tjqt.qr>
On Thu, 5 Apr 2007 22:37:45 +0200 (MEST)
Jan Engelhardt <jengelh@linux01.gwdg.de> wrote:
> Hello Stephen,
>
> On Apr 5 2007 12:23, Stephen Hemminger wrote:
> >
> >If the radeon and/or the Ethernet driver support MSI, that would split
> >out the IRQ's as well.
>
> Would Linux do that automatically? How to find out whether a given
> device -- or device driver? -- supports MSI?
>
>
> Thanks,
> Jan
lspci -vv will show if hardware is capable. The device driver needs
to have code that does the necessary MSI setup, some have it but
many don't. MSI is also broken on some chipsets (mostly AMD).
next prev parent reply other threads:[~2007-04-05 20:45 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <fa.21iotKLTgoLpkKhrbSxrjy5v7hM@ifi.uio.no>
2007-04-05 14:34 ` IRQ splitting Robert Hancock
2007-04-05 19:23 ` Stephen Hemminger
2007-04-05 20:37 ` Jan Engelhardt
2007-04-05 19:45 ` Stephen Hemminger [this message]
2007-04-05 10:40 Jan Engelhardt
2007-04-05 12:13 ` Jiri Kosina
2007-04-05 13:11 ` Mark Hounschell
2007-04-05 14:14 ` Lennart Sorensen
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