Re: [PATCH 1/1] PCI: X-Gene: Disable Configuration Request Retry Status for X-Gene v1 PCIe

2015-06-12 Thread Bjorn Helgaas
On Fri, Jun 12, 2015 at 5:10 PM, Duc Dang wrote: > Hi Bjorn, > > On Fri, Jun 12, 2015 at 2:59 PM, Bjorn Helgaas wrote: >> Hi Duc, >> >> On Thu, Jun 11, 2015 at 01:08:14PM -0700, Duc Dang wrote: >>> X-Gene v1 PCIe controller has a bug in Configuration Request Retry >>> Status (CRS) logic: >>> Wh

Re: [PATCH 1/1] PCI: X-Gene: Disable Configuration Request Retry Status for X-Gene v1 PCIe

2015-06-12 Thread Duc Dang
Hi Bjorn, On Fri, Jun 12, 2015 at 2:59 PM, Bjorn Helgaas wrote: > Hi Duc, > > On Thu, Jun 11, 2015 at 01:08:14PM -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 >

Re: [PATCH 1/1] PCI: X-Gene: Disable Configuration Request Retry Status for X-Gene v1 PCIe

2015-06-12 Thread Bjorn Helgaas
Hi Duc, On Thu, Jun 11, 2015 at 01:08:14PM -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 0x0001 instead of > 0xF

Re: [PATCH 1/1] PCI: X-Gene: Disable Configuration Request Retry Status for X-Gene v1 PCIe

2015-06-12 Thread Ian Campbell
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 0x0001 instead of > 0x; this will a

Re: [PATCH 1/1] PCI: X-Gene: Disable Configuration Request Retry Status for X-Gene v1 PCIe

2015-06-12 Thread Marcin Juszkiewicz
W dniu 11.06.2015 o 22:08, Duc Dang pisze:> 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 0x0001 instead of >0x; this will add si

[PATCH 1/1] PCI: X-Gene: Disable Configuration Request Retry Status for X-Gene v1 PCIe

2015-06-11 Thread Duc Dang
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 0x0001 instead of 0x; this will add significant delay in boot time as pci_bus_read_dev_vendo