* Re: [Qemu-devel] uhci: cancel delay for unregistered queues
[not found] ` <511CD72D.80502@redhat.com>
@ 2013-04-25 10:20 ` Hans de Goede
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From: Hans de Goede @ 2013-04-25 10:20 UTC (permalink / raw)
To: Gerd Hoffmann; +Cc: Jan Kiszka, qemu-devel
Hi,
On 02/14/2013 01:23 PM, Gerd Hoffmann wrote:
> Hi,
>
>>> The only fix I can think of is allocating a receive buffer inside
>>> the UHCI code for read transfers, and copy the result over to the
>>> guest memory when we are re-scanning the schedule, encounter the
>>> completed td and are going to signal its completion to the guest.
>
>> I could take a shot at writing a patch with the proposed fix, but I
>> was sort of waiting on a reaction on the proposal first.
>>
>> Gerd what do you think of my proposed fix ?
>
> That should fix it indeed. Yes, for uhci we can live with the overhead,
> it's low bandwidth anyway. No, I don't have a better idea. Patch is
> very welcome.
Ok, so a bit late I must admit, but I've finally gotten around to writing
the promised fix for this.
I'm going to send it right after this mail.
Jan, can you give it a spin and see if it fixes your issue ?
Regards,
Hans
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2013-04-25 10:20 ` [Qemu-devel] uhci: cancel delay for unregistered queues Hans de Goede
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