Re: [virtio-dev] Re: [virtio-comment] [PATCH v4] virtio-i2c: add the device specification

[Jie Deng <jie.deng@intel.com>]

On 2020/11/18 16:22, Paolo Bonzini wrote:
> On 18/11/20 03:06, Jie Deng wrote:
> > Can the "kick" be used for grouping ? I mean when a write and a read
> > are sent by one kick at a time, they will be treated as one
> > transaction by default if the host has such a feature bit.
>
> No, the kick is only an advice. The device is allowed to poll on the 
> ring and ignore kicks completely, for example.
>
> Paolo
Understood. But I saw your proposal can only group two segments 
"write-read".
What if we have segments more than two ? for example, 
"write-read-read..." or "write-write-write...".
Can we use a flag to tag the START/STOP segments so that they can be 
grouped into one transaction ?

Thanks.