From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Linas Vepstas <linas@austin.ibm.com>
Cc: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
Yanmin Zhang <yanmin.zhang@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
Rajesh Shah <rajesh.shah@intel.com>,
linuxppc-dev@ozlabs.org,
linux-pci maillist <linux-pci@atrey.karlin.mff.cuni.cz>
Subject: Re: pci error recovery procedure
Date: Wed, 06 Sep 2006 07:19:11 +1000 [thread overview]
Message-ID: <1157491152.22705.133.camel@localhost.localdomain> (raw)
In-Reply-To: <20060905185020.GD7139@austin.ibm.com>
On Tue, 2006-09-05 at 13:50 -0500, Linas Vepstas wrote:
> On Mon, Sep 04, 2006 at 07:03:12PM +1000, Benjamin Herrenschmidt wrote:
> >
> > > As you know, all functions of a device share the same bus number and 5 bit dev number.
> > > They just have different 3 bit function number. We could deduce if functions are in the same
> > > device (slot).
> >
> > Until you have a P2P bridge ...
>
> And this is not theoretical: for example, the matrox graphics cards:
>
> 0000:c8:01.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge (non-transparent mode) (rev 13)
> 0000:c9:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 85)
It's also very common with multiple ports network cards
Ben.
WARNING: multiple messages have this Message-ID (diff)
From: Benjamin Herrenschmidt <benh@kernel.crashing.org>
To: Linas Vepstas <linas@austin.ibm.com>
Cc: "Zhang, Yanmin" <yanmin_zhang@linux.intel.com>,
linuxppc-dev@ozlabs.org,
linux-pci maillist <linux-pci@atrey.karlin.mff.cuni.cz>,
Yanmin Zhang <yanmin.zhang@intel.com>,
LKML <linux-kernel@vger.kernel.org>,
Rajesh Shah <rajesh.shah@intel.com>
Subject: Re: pci error recovery procedure
Date: Wed, 06 Sep 2006 07:19:11 +1000 [thread overview]
Message-ID: <1157491152.22705.133.camel@localhost.localdomain> (raw)
In-Reply-To: <20060905185020.GD7139@austin.ibm.com>
On Tue, 2006-09-05 at 13:50 -0500, Linas Vepstas wrote:
> On Mon, Sep 04, 2006 at 07:03:12PM +1000, Benjamin Herrenschmidt wrote:
> >
> > > As you know, all functions of a device share the same bus number and 5 bit dev number.
> > > They just have different 3 bit function number. We could deduce if functions are in the same
> > > device (slot).
> >
> > Until you have a P2P bridge ...
>
> And this is not theoretical: for example, the matrox graphics cards:
>
> 0000:c8:01.0 PCI bridge: Hint Corp HB6 Universal PCI-PCI bridge (non-transparent mode) (rev 13)
> 0000:c9:00.0 VGA compatible controller: Matrox Graphics, Inc. MGA G400 AGP (rev 85)
It's also very common with multiple ports network cards
Ben.
next prev parent reply other threads:[~2006-09-05 21:19 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <1157008212.20092.36.camel@ymzhang-perf.sh.intel.com>
2006-08-31 17:50 ` pci error recovery procedure Linas Vepstas
2006-09-01 3:33 ` Zhang, Yanmin
2006-09-01 21:25 ` Linas Vepstas
2006-09-01 21:25 ` Linas Vepstas
2006-09-04 5:47 ` Zhang, Yanmin
2006-09-04 5:47 ` Zhang, Yanmin
2006-09-04 9:03 ` Benjamin Herrenschmidt
2006-09-04 9:03 ` Benjamin Herrenschmidt
2006-09-05 2:32 ` Zhang, Yanmin
2006-09-05 2:32 ` Zhang, Yanmin
2006-09-05 19:01 ` Linas Vepstas
2006-09-05 19:01 ` Linas Vepstas
2006-09-06 1:26 ` Zhang, Yanmin
2006-09-06 1:26 ` Zhang, Yanmin
2006-09-06 20:01 ` Linas Vepstas
2006-09-06 20:01 ` Linas Vepstas
2006-09-07 1:56 ` Zhang, Yanmin
2006-09-07 1:56 ` Zhang, Yanmin
2006-09-05 18:50 ` Linas Vepstas
2006-09-05 18:50 ` Linas Vepstas
2006-09-05 21:19 ` Benjamin Herrenschmidt [this message]
2006-09-05 21:19 ` Benjamin Herrenschmidt
2006-09-06 1:35 ` Zhang, Yanmin
2006-09-06 1:35 ` Zhang, Yanmin
2006-09-05 19:17 ` Linas Vepstas
2006-09-05 19:17 ` Linas Vepstas
2006-09-06 2:04 ` Zhang, Yanmin
2006-09-06 2:04 ` Zhang, Yanmin
2006-09-06 20:39 ` Linas Vepstas
2006-09-06 20:39 ` Linas Vepstas
2006-09-07 3:18 ` Zhang, Yanmin
2006-09-07 3:18 ` Zhang, Yanmin
2006-09-12 19:38 ` Linas Vepstas
2006-09-12 19:38 ` Linas Vepstas
2006-09-01 3:42 ` Zhang, Yanmin
2006-09-01 3:42 ` Zhang, Yanmin
2006-09-01 9:04 ` Zhang, Yanmin
2006-09-01 9:04 ` Zhang, Yanmin
2006-09-01 21:32 ` Linas Vepstas
2006-09-01 21:32 ` Linas Vepstas
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