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Re: [Qemu-devel] [PATCH 2/2] virtio-blk: dataplane: notify guest as a ba


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH 2/2] virtio-blk: dataplane: notify guest as a batch
Date: Fri, 04 Jul 2014 18:09:52 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:24.0) Gecko/20100101 Thunderbird/24.6.0

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



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