From: Paolo Bonzini <pbonzini@redhat.com>
To: Ming Lei <ming.lei@canonical.com>
Cc: Kevin Wolf <kwolf@redhat.com>,
Peter Maydell <peter.maydell@linaro.org>,
Fam Zheng <famz@redhat.com>,
"Michael S. Tsirkin" <mst@redhat.com>,
qemu-devel <qemu-devel@nongnu.org>,
Stefan Hajnoczi <stefanha@redhat.com>
Subject: Re: [Qemu-devel] [PATCH 2/2] virtio-blk: dataplane: notify guest as a batch
Date: Fri, 04 Jul 2014 18:09:52 +0200 [thread overview]
Message-ID: <53B6D1D0.5030000@redhat.com> (raw)
In-Reply-To: <CACVXFVMfZUYNQzy4hSEQM2AXQNgh=W7ZzbgDmV+vd=PGjkuWxg@mail.gmail.com>
Il 04/07/2014 17:57, Ming Lei ha scritto:
> But we have two cases to consider:
>
> - one submitted IO includes requests from multi vq(virtio-blk or
> virtio-scsi maybe),
> and each vq has to notify guest
>
> - one submitted IO includes requests from multi bs for scsi device
>
> The 2nd case should be easy to handle, but I am a bit headache for the 1st case.
You can just have one bottom half per virtqueue. :)
Paolo
next prev parent reply other threads:[~2014-07-04 16:10 UTC|newest]
Thread overview: 9+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-04 12:27 [Qemu-devel] [PATCH 0/2] virtio-blk: dataplane: one fix plus one optimization Ming Lei
2014-07-04 12:27 ` [Qemu-devel] [PATCH 1/2] virtio-blk: data-plane: fix save/set .complete_request in start Ming Lei
2014-07-04 12:27 ` [Qemu-devel] [PATCH 2/2] virtio-blk: dataplane: notify guest as a batch Ming Lei
2014-07-04 12:55 ` Paolo Bonzini
2014-07-04 14:52 ` Ming Lei
2014-07-04 15:48 ` Paolo Bonzini
2014-07-04 15:57 ` Ming Lei
2014-07-04 16:09 ` Paolo Bonzini [this message]
2014-07-05 4:21 ` Ming Lei
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