netdev - Re: Implement initial driver for virtio-RDMA devices(kernel), virtio-rdma device model(qemu) and vhost-user-RDMA backend device(dpdk)

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Message-ID: <20251218162028.GG400630@unreal>
Date: Thu, 18 Dec 2025 18:20:28 +0200
From: Leon Romanovsky <leon@...nel.org>
To: Xiong Weimin <15927021679@....com>
Cc: Alexei Starovoitov <ast@...nel.org>,
	Daniel Borkmann <daniel@...earbox.net>,
	"David S . Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Jesper Dangaard Brouer <hawk@...nel.org>,
	John Fastabend <john.fastabend@...il.com>,
	Stanislav Fomichev <sdf@...ichev.me>, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: Implement initial driver for virtio-RDMA devices(kernel),
 virtio-rdma device model(qemu) and vhost-user-RDMA backend device(dpdk)

On Wed, Dec 17, 2025 at 04:49:47PM +0800, Xiong Weimin wrote:
> Hi all,
> 
> This testing instructions aims to introduce an emulating a soft ROCE 
> device with normal NIC(no RDMA).

What is it? We already have one soft RoCE device implemented in the
kernel (drivers/infiniband/sw/rxe), which doesn't require any QEMU
changes at all.

Thanks