On Thu, 2015-06-11 at 13:08 -0700, Duc Dang wrote: > X-Gene v1 PCIe controller has a bug in Configuration Request Retry > Status (CRS) logic: > When CPU tries to read Vendor ID and Device ID of not-existed > remote device, the controller returns 0xFFFF0001 instead of > 0xFFFFFFFF; this will add significant delay in boot time as > pci_bus_read_dev_vendor_id will wait for 60 seconds before > giving up. > > So for X-Gene v1 PCIe controllers, disable CRS capability > advertisement by clearing CRS Software Visibility bit before > returning the Root Capability value to the callers. This is done > by implementing X-Gene PCIe specific xgene_pcie_config_read32 for > CFG read accesses to replace the generic default pci_generic_config_read32 > function. > > Signed-off-by: Duc Dang <dhd...@apm.com>
Applied onto v4.1-rc7 and: Tested-by: Ian Campbell <ian.campb...@citrix.com> Thanks! -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
