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From: Yuanhan Liu <yuanhan.liu@linux.intel.com>
To: Maxime Coquelin <maxime.coquelin@redhat.com>
Cc: dev@dpdk.org
Subject: Re: [PATCH] vhost: Introduce vhost-user's REPLY_ACK feature
Date: Thu, 12 Jan 2017 12:03:44 +0800	[thread overview]
Message-ID: <20170112040344.GC9770@yliu-dev.sh.intel.com> (raw)
In-Reply-To: <20161212175400.7978-1-maxime.coquelin@redhat.com>

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.coquelin@redhat.com>

Applied to dpdk-next-virtio.

Thanks.

	--yliu

      parent reply	other threads:[~2017-01-12  4:01 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-12-12 17:54 [PATCH] vhost: Introduce vhost-user's REPLY_ACK feature Maxime Coquelin
2016-12-13  9:56 ` Yuanhan Liu
2016-12-13  9:57   ` Maxime Coquelin
2016-12-13 10:03     ` Yuanhan Liu
2016-12-13 10:14       ` Maxime Coquelin
2017-01-12  4:03 ` Yuanhan Liu [this message]

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