On 04/25/2012 07:36 PM, Bjorn Helgaas wrote: > A PCIe downstream port is a P2P bridge. Its secondary interface is > a link that should lead only to device 0 (unless ARI is enabled)[1], so > we don't probe for non-zero device numbers. > > Some Stratus ftServer systems have a PCIe downstream port (02:00.0) that > leads to both an upstream port (03:00.0) and a downstream port (03:01.0), > and 03:01.0 has important devices below it: > > [0000:02]-+-00.0-[0000:03]--+-00.0 > \-01.0-[0000:xx]--+-[USB] > \-[NIC] > > Previously, we didn't enumerate device 03:01.0, so USB and the network > didn't work. This patch adds a DMI quirk to scan all device numbers, > not just 0, below a downstream port. > > Based on a patch by Prarit Bhargava. > > [1] PCIe spec r3.0, sec 7.3.1 > > CC: Myron Stowe <mstowe@xxxxxxxxxx> > CC: Don Dutile <ddutile@xxxxxxxxxx> > CC: James Paradis <jim.paradis@xxxxxxxxxxx> Nuts. This is my fault. I'm so used to calling him "Jim" that I screwed up his email address. It should be james.paradis@xxxxxxxxxxx . Jim, can you retest with this updated version of the patch so we can confirm it works? http://marc.info/?l=linux-pci&m=133539711207345&w=2 Thanks, P. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
