Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-25 Thread Sarah Sharp
On Tue, Sep 25, 2012 at 07:30:52AM -0700, Sarah Sharp wrote: > On Mon, Sep 24, 2012 at 07:58:04PM -0700, Andiry Xu wrote: > > Does this bug only affect isoc devices behind a hub? Can the > > workaround be limited so devices connected to the root hub can still > > use BEI? > > I don't think it's is

Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-25 Thread Sarah Sharp
On Tue, Sep 25, 2012 at 08:18:57AM -0700, Greg KH wrote: > On Tue, Sep 25, 2012 at 11:10:15AM -0400, Alan Stern wrote: > > On Mon, 24 Sep 2012, Sarah Sharp wrote: > > > > > On Mon, Sep 24, 2012 at 01:05:08PM -0700, Sarah Sharp wrote: > > > > On Mon, Sep 24, 2012 at 03:50:04PM -0400, Alan Stern wro

Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-25 Thread Greg KH
On Tue, Sep 25, 2012 at 11:10:15AM -0400, Alan Stern wrote: > On Mon, 24 Sep 2012, Sarah Sharp wrote: > > > On Mon, Sep 24, 2012 at 01:05:08PM -0700, Sarah Sharp wrote: > > > On Mon, Sep 24, 2012 at 03:50:04PM -0400, Alan Stern wrote: > > > > On Mon, 24 Sep 2012, Sarah Sharp wrote: > > > > > > >

Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-25 Thread Alan Stern
On Mon, 24 Sep 2012, Sarah Sharp wrote: > On Mon, Sep 24, 2012 at 01:05:08PM -0700, Sarah Sharp wrote: > > On Mon, Sep 24, 2012 at 03:50:04PM -0400, Alan Stern wrote: > > > On Mon, 24 Sep 2012, Sarah Sharp wrote: > > > > > > > When a device with an isochronous endpoint is behind a hub plugged int

Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-25 Thread Sarah Sharp
On Mon, Sep 24, 2012 at 07:58:04PM -0700, Andiry Xu wrote: > On Mon, Sep 24, 2012 at 3:35 PM, Sarah Sharp > wrote: > > On Mon, Sep 24, 2012 at 01:05:08PM -0700, Sarah Sharp wrote: > >> On Mon, Sep 24, 2012 at 03:50:04PM -0400, Alan Stern wrote: > >> > On Mon, 24 Sep 2012, Sarah Sharp wrote: > >> >

Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-24 Thread Andiry Xu
On Mon, Sep 24, 2012 at 3:35 PM, Sarah Sharp wrote: > On Mon, Sep 24, 2012 at 01:05:08PM -0700, Sarah Sharp wrote: >> On Mon, Sep 24, 2012 at 03:50:04PM -0400, Alan Stern wrote: >> > On Mon, 24 Sep 2012, Sarah Sharp wrote: >> > >> > > When a device with an isochronous endpoint is behind a hub plug

Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-24 Thread Sarah Sharp
On Mon, Sep 24, 2012 at 01:05:08PM -0700, Sarah Sharp wrote: > On Mon, Sep 24, 2012 at 03:50:04PM -0400, Alan Stern wrote: > > On Mon, 24 Sep 2012, Sarah Sharp wrote: > > > > > When a device with an isochronous endpoint is behind a hub plugged into > > > the Intel Panther Point xHCI host controlle

Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-24 Thread Sarah Sharp
On Mon, Sep 24, 2012 at 03:50:04PM -0400, Alan Stern wrote: > On Mon, 24 Sep 2012, Sarah Sharp wrote: > > > When a device with an isochronous endpoint is behind a hub plugged into > > the Intel Panther Point xHCI host controller, and the driver submits > > multiple frames per URB, the xHCI driver

Re: [RFC] xhci: Intel Panther Point BEI quirk.

2012-09-24 Thread Alan Stern
On Mon, 24 Sep 2012, Sarah Sharp wrote: > When a device with an isochronous endpoint is behind a hub plugged into > the Intel Panther Point xHCI host controller, and the driver submits > multiple frames per URB, the xHCI driver will set the Block Event > Interrupt (BEI) flag on all but the last TD