linux-kernel - PCI express switch handling ..

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [day] [month] [year] [list]

Message-ID: <1a297b361003141215u70e608b3xb8fba358f3d9e802@mail.gmail.com>
Date:	Sun, 14 Mar 2010 23:15:18 +0400
From:	Manu Abraham <abraham.manu@...il.com>
To:	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-pci@...ey.karlin.mff.cuni.cz,
	Grant Grundler <grundler@...isc-linux.org>
Subject: PCI express switch handling ..

Hi All,

I have one of these PCIe switches on one of the PCIe cards that I have:

http://www.plxtech.com/products/expresslane/pex8604

I was wondering how to handle this thing, ie;

I have to PCIe devices behind this switch, which looks thus:

06:00.0 PCI bridge: PLX Technology, Inc. Device 8604 (rev ba)
07:01.0 PCI bridge: PLX Technology, Inc. Device 8604 (rev ba)
07:04.0 PCI bridge: PLX Technology, Inc. Device 8604 (rev ba)
07:05.0 PCI bridge: PLX Technology, Inc. Device 8604 (rev ba)
09:00.0 Multimedia controller: Philips Semiconductors Device 7231 (rev aa)
0a:00.0 Multimedia controller: Philips Semiconductors Device 7231 (rev aa)

I am wondering if i need to access or address the switch specifically
to forward data specifically to one of the bridges behind the switch.
At present I can access one of the Multimedia controllers (09:00.0) ,
but it seems I can't access the other one and hence my question as to
determine whether it is something else.

Any pointer would be appreciated.

Thanks,
Manu
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@...r.kernel.org
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/