From: "Michael S. Tsirkin" <mst@redhat.com>
To: rusty@rustcorp.com.au, virtualization@lists.linux-foundation.org
Subject: Re: [PATCH 0/6] virtio: virtqueue ops cleanup
Date: Tue, 13 Apr 2010 16:06:04 +0300 [thread overview]
Message-ID: <20100413130604.GA25574@redhat.com> (raw)
In-Reply-To: <cover.1271078235.git.mst@redhat.com>
On Mon, Apr 12, 2010 at 04:17:15PM +0300, Michael S. Tsirkin wrote:
> virtqueue ops were introduced in the hope that we'll
> have multiple implementations besides virtio_ring,
> but none have surfaced so far, and given that
> existing virtio ring is deployed in production
> we are likely stuck with it now, so this layer just
> adds complexity and overhead.
> Further, the need to pass vq twice to each call
> (as in dev->vq->vq_ops->kick(dev->vq) ) adds potential
> for cut and paste errors.
>
> This patchset does the following:
> - add inline wrappers converting the above to virtqueue_kick(dev->vq)
> - convert all users to this API
> - remove vq_ops indirection, implementing virtqueue_xx directly
> in virtio_ring
>
> Note that if we ever want to add another vring implementation,
> we'll only need to revert the last patch in the series,
> devices won't have to change.
Looks like I missed virtio-rng and trans_virtio.
So the following are needed as well.
--
MST
next prev parent reply other threads:[~2010-04-13 13:06 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-04-12 13:18 [PATCH 0/6] virtio: virtqueue ops cleanup Michael S. Tsirkin
2010-04-12 13:18 ` [PATCH 1/6] virtio: add virtqueue_ vq_ops wrappers Michael S. Tsirkin
2010-04-12 13:18 ` [PATCH 2/6] virtio_balloon: use virtqueue_xxx wrappers Michael S. Tsirkin
2010-04-12 13:18 ` [PATCH 3/6] virtio_console: " Michael S. Tsirkin
2010-04-12 13:18 ` [PATCH 4/6] virtio_blk: " Michael S. Tsirkin
2010-04-12 13:19 ` [PATCH 5/6] virtio_net: " Michael S. Tsirkin
2010-04-12 13:19 ` [PATCH 6/6] virtio_ring: remove a level of indirection Michael S. Tsirkin
2010-04-13 13:06 ` Michael S. Tsirkin [this message]
2010-04-13 13:11 ` [PATCH] virtio-rng: use virtqueue_xxx wrappers Michael S. Tsirkin
2010-04-13 13:11 ` [PATCH] trans_virtio: " Michael S. Tsirkin
2010-04-20 9:10 ` Rusty Russell
2010-04-19 20:49 ` [PATCH 0/6] virtio: virtqueue ops cleanup Michael S. Tsirkin
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