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Re: [Qemu-devel] [PATCH 1/2] hw/usb-ohci: Honour endpoint maximum packet

From: Gerd Hoffmann
Subject: Re: [Qemu-devel] [PATCH 1/2] hw/usb-ohci: Honour endpoint maximum packet size
Date: Thu, 15 Sep 2011 13:45:03 +0200
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110904 Red Hat/3.1.14-1.el6_1 Thunderbird/3.1.14

On 09/15/11 13:24, Peter Maydell wrote:
On 15 September 2011 11:49, Gerd Hoffmann<address@hidden>  wrote:
Peter Maydell wrote:
It seems to me that at least some of that is likely to be
guest-visible, especially in the case where an endpoint returns an
error partway through. So it's not clear to me that you could
validly batch up everything in the TD and do it all at once.

I think the only guest-visible effect is that the guest will never ever see
an partially filled transfer block, it is either empty or completely filled
(except on short transfers).

Hmm, maybe. Anyway, can we have this committed as a bug fix
for the current design pending you redoing this with your
new approach, please?

Fair enouth.  Added to the patch queue.


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