On Tue, 22 Sep 2009 14:01:06 -0500 Gabe Black <gabebblack@xxxxxxxxx> wrote: > Hi, > > The TI XIO2000A/XIO2200A PCIe-PCI bridge (VID: 104C, DID: 8231) > erroneously handles fast back-to-back transfers on its subordinate bus > segment. The behavior is seen when there are multiple devices > downstream and transfers from both devices result in a fast b2b > transfer. This confuses the PCIe-PCI bridge and results in data > corruption. > > One way to work around the buggy bridge would be to disable fast b2b > transfers on any device on the subordinate bus-segment by writing the > appropriate bits in the device's pci-configspace command register. > > Are there any suggestions on how this might be handled? Should this > be addressed in the kernel? sounds like this is worth a PCI quirk in the kernel... -- Arjan van de Ven Intel Open Source Technology Centre For development, discussion and tips for power savings, visit http://www.lesswatts.org -- 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
