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Subject: RE: [virtio-comment] RE: [PATCH v3 2/2] content: Support enabling virtqueue after DRIVER_OK stage

> From: Michael S. Tsirkin <mst@redhat.com>
> Sent: Thursday, October 26, 2023 2:46 PM

> > So, this will still provide the unified approach when/if needed on other
> devices.
> What do you want to know? Whether dynamically adding/deleting queues is
> useful generally? For example, queue per CPU is not uncommon to avoid need
> for locks. In the presence of CPU hotplug, the natural thing to do is to
> add/delete them.
So for those devices who care for such performance, it is reasonable for them to have the cvq providing channel for complex and dynamic commands.

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