On Mon, Dec 12, 2016 at 06:54:00PM +0100, Maxime Coquelin wrote:
> REPLY_ACK features provide a generic way for QEMU to ensure both
> completion and success of a request.
>
> As described in vhost-user spec in QEMU repository, QEMU sets
> VHOST_USER_NEED_REPLY flag (bit 3) when expecting a reply_ack from
> the backend. Backend must reply with 0 for success or non-zero
> otherwise when flag is set.
>
> Currently, only VHOST_USER_SET_MEM_TABLE request implements reply_ack,
> in order to synchronize mapping updates.
>
> This patch enables REPLY_ACK feature generally, but only checks error
> code for VHOST_USER_SET_MEM_TABLE.
>
> Signed-off-by: Maxime Coquelin <maxime.coque...@redhat.com>
Thanks for the patch: it looks good and straightforward to me.
> ---
> Hi,
>
> The intend of this patch is not to fix a known issue, but it is
> nice to have this feature, and it will be used by upcoming MTU
> feature if it remains in its current form.
Just asking, when do you plan to send out the patches?
--yliu
