netdev - Re: [PATCH vhost v11 05/10] virtio_ring: introduce virtqueue_dma

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Message-ID: <ZL6qPvd6X1CgUD4S@infradead.org>
Date: Mon, 24 Jul 2023 09:43:42 -0700
From: Christoph Hellwig <hch@...radead.org>
To: "Michael S. Tsirkin" <mst@...hat.com>
Cc: Christoph Hellwig <hch@...radead.org>,
	Xuan Zhuo <xuanzhuo@...ux.alibaba.com>,
	virtualization@...ts.linux-foundation.org,
	Jason Wang <jasowang@...hat.com>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>, netdev@...r.kernel.org,
	bpf@...r.kernel.org
Subject: Re: [PATCH vhost v11 05/10] virtio_ring: introduce
 virtqueue_dma_dev()

On Thu, Jul 20, 2023 at 01:21:07PM -0400, Michael S. Tsirkin wrote:
> Well I think we can add wrappers like virtio_dma_sync and so on.
> There are NOP for non-dma so passing the dma device is harmless.

Yes, please.