On Friday 15 June 2007, Oliver Neukum wrote:
> Hi,
>
> I've been looking at memory management in ehci. IMHO to cleanly
> solve the deadlock,
Context please. What deadlock? Has it been observed?
> callers need a way to pass down memory reserves
> to the HCD. As they are unique to the bus, thi
On Fri, Jun 15, 2007 at 04:08:57PM +0200, Oliver Neukum wrote:
> Am Freitag, 15. Juni 2007 schrieb Alan Stern:
> > But you're much better off avoiding partially executed requests if you
> > can avoid it. It would be preferable to transmit the data one packet
> > at a time: slower but more likely
On Fri, 15 Jun 2007, Oliver Neukum wrote:
> > > 2. Can the SCSI layer deal with partially executed sg requests?
> >
> > Yes for READs and WRITEs; I'm not sure about other sorts of requests.
> >
> > But you're much better off avoiding partially executed requests if you
> > can avoid it. It wo
Am Freitag, 15. Juni 2007 schrieb Alan Stern:
> [Added Matt to CC: list]
>
> On Fri, 15 Jun 2007, Oliver Neukum wrote:
>
> > Hi,
> >
> > I've been looking at memory management in ehci. IMHO to cleanly
> > solve the deadlock, callers need a way to pass down memory reserves
> > to the HCD. As they
[Added Matt to CC: list]
On Fri, 15 Jun 2007, Oliver Neukum wrote:
> Hi,
>
> I've been looking at memory management in ehci. IMHO to cleanly
> solve the deadlock, callers need a way to pass down memory reserves
> to the HCD. As they are unique to the bus, this needs a method to allocate
> such r
Hi,
I've been looking at memory management in ehci. IMHO to cleanly
solve the deadlock, callers need a way to pass down memory reserves
to the HCD. As they are unique to the bus, this needs a method to allocate
such reserves from the HCD.
So a few questions arise.
1. Can every HCD compute how mu
