RE: [virtio-dev] [PATCH RFC] packed ring layout spec v5

2017-11-29 Thread Lars Ganrot
> From: Michael S. Tsirkin [mailto:m...@redhat.com] > Sent: 28. november 2017 15:37 > > If the device always returns buffers in order, then couldn't the driver > > skip the > >step of reading the used.ring for read-only buffers (e.g. TX for net > >devices)? The > >used.idx tells how many

Re: [virtio-dev] [PATCH RFC] packed ring layout spec v5

2017-11-28 Thread Michael S. Tsirkin
On Sat, Nov 25, 2017 at 07:55:53PM +, Lars Ganrot wrote: > Hi Michael and others, > > Hopefully my question below follows the forum format. > > BR, > > -Lars > > > > \subsection{In-order use of descriptors} \label{sec:Packed Virtqueues / > > In-order > > use of descriptors} > > > > Some

Re: [virtio-dev] [PATCH RFC] packed ring layout spec v5

2017-11-27 Thread Michael S. Tsirkin
On Fri, Nov 24, 2017 at 10:00:39AM +, Dhanoa, Kully wrote: > I've embedded my original comments in the text below for archiving purposes. > > Michael, > I could not find your responses to my comments in the document. > > If you could provide them, it would help me to understand the proposal

RE: [virtio-dev] [PATCH RFC] packed ring layout spec v5

2017-11-25 Thread Lars Ganrot
Hi Michael and others, Hopefully my question below follows the forum format. BR, -Lars > > \subsection{In-order use of descriptors} \label{sec:Packed Virtqueues / > In-order > use of descriptors} > > Some devices always use descriptors in the same order in which they have been > made

Re: [virtio-dev] [PATCH RFC] packed ring layout spec v5

2017-11-24 Thread Michael S. Tsirkin
On Fri, Nov 24, 2017 at 10:00:39AM +, Dhanoa, Kully wrote: > I've embedded my original comments in the text below for archiving purposes. > > Michael, > I could not find your responses to my comments in the document. > > If you could provide them, it would help me to understand the proposal

RE: [virtio-dev] [PATCH RFC] packed ring layout spec v5

2017-11-24 Thread Dhanoa, Kully
I've embedded my original comments in the text below for archiving purposes. Michael, I could not find your responses to my comments in the document. If you could provide them, it would help me to understand the proposal better. Thanks Kully -Original Message- From: