From: "Michael S. Tsirkin" <mst@redhat.com>
To: "Marc-André Lureau" <marcandre.lureau@gmail.com>
Cc: Wei Wang <wei.w.wang@intel.com>,
virtio-comment@lists.oasis-open.org, qemu-devel@nongnu.org,
stefanha@redhat.com, pbonzini@redhat.com
Subject: Re: [Qemu-devel] [virtio-comment] Re: [PATCH v1] docs/vhost-user: extend the vhost-user protocol to support the vhost-pci based inter-vm communication
Date: Fri, 11 Nov 2016 19:12:20 +0200 [thread overview]
Message-ID: <20161111191020-mutt-send-email-mst@kernel.org> (raw)
In-Reply-To: <CAJ+F1CJPLtV3WB5JT61H0zfuun1tn=ALt6QzEPjcUU4G=CxXmA@mail.gmail.com>
On Tue, Nov 08, 2016 at 12:17:38PM +0000, Marc-André Lureau wrote:
> Yes, that's the trouble. At any time the Master may send a request and expects
> an immediate reply. There is a race of getting a request from the Slave in the
> middle with your proposed change. I'd rather avoid making the request
> bidirectionnal if possible. (I proposed a second channel for Slave->Master
> request in the past: https://lists.gnu.org/archive/html/qemu-devel/2016-04/
> msg00095.html)
I don't have an issue with this, but supporting commands from
slave on the same channel shouldn't be too hard too,
and it's less work for the management.
--
MST
prev parent reply other threads:[~2016-11-11 17:12 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-10-24 7:10 [Qemu-devel] [PATCH v1] docs/vhost-user: extend the vhost-user protocol to support the vhost-pci based inter-vm communication Wei Wang
2016-10-30 18:02 ` Michael S. Tsirkin
2016-11-07 5:43 ` Wang, Wei W
2016-11-08 7:47 ` Marc-André Lureau
2016-11-08 11:35 ` [Qemu-devel] [virtio-comment] " Wei Wang
2016-11-08 11:59 ` Wang, Wei W
2016-11-08 12:17 ` Marc-André Lureau
2016-11-09 8:32 ` Wei Wang
2016-11-10 12:26 ` Marc-André Lureau
2016-11-11 8:24 ` Wei Wang
2016-11-11 17:12 ` Michael S. Tsirkin [this message]
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