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Re: [Qemu-devel] [RFC PATCH v2 09/10] virtio-scsi-dataplane: Code to run


From: Paolo Bonzini
Subject: Re: [Qemu-devel] [RFC PATCH v2 09/10] virtio-scsi-dataplane: Code to run virtio-scsi on iothread
Date: Mon, 22 Sep 2014 10:09:43 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0

Il 22/09/2014 07:56, Fam Zheng ha scritto:
>> > 
>> > Please add these to VirtIOSCSI rather than VirtIOSCSICommon.  Same for
>> > the new functions you declare below.
> What's the rationale, please? Asking because especially the VirtIOSCSIVring
> fields are the dataplane counterparts of VirtQueue fields, so putting in
> VirtIOSCSI seems unnatural for me.

Because everything you put in VirtIOSCSICommon will be shared between
virtio-scsi and vhost-scsi, and vhost-scsi need not use neither vring
nor dataplane.

Paolo



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