linux-kernel - [PATCH v3 0/3] vduse: add support for networking devices

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Message-ID: <20230705100430.61927-1-maxime.coquelin@redhat.com>
Date:   Wed,  5 Jul 2023 12:04:27 +0200
From:   Maxime Coquelin <maxime.coquelin@...hat.com>
To:     xieyongji@...edance.com, jasowang@...hat.com, mst@...hat.com,
        david.marchand@...hat.com, lulu@...hat.com
Cc:     linux-kernel@...r.kernel.org,
        virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org,
        xuanzhuo@...ux.alibaba.com, eperezma@...hat.com,
        Maxime Coquelin <maxime.coquelin@...hat.com>
Subject: [PATCH v3 0/3] vduse: add support for networking devices

This small series enables virtio-net device type in VDUSE.
With it, basic operation have been tested, both with
virtio-vdpa and vhost-vdpa using DPDK Vhost library series
adding VDUSE support using split rings layout (merged in
DPDK v23.07-rc1).

Control queue support (and so multiqueue) has also been
tested, but requires a Kernel series from Jason Wang
relaxing control queue polling [1] to function reliably,
so while Jason rework is done, a patch is added to disable
CVQ and features that depend on it (tested also with DPDK
v23.07-rc1).

[1]: https://lore.kernel.org/lkml/CACGkMEtgrxN3PPwsDo4oOsnsSLJfEmBEZ0WvjGRr3whU+QasUg@mail.gmail.com/T/

v2 -> v3 changes:
=================
- Use allow list instead of deny list (Michael)

v1 -> v2 changes:
=================
- Add a patch to disable CVQ (Michael)

RFC -> v1 changes:
==================
- Fail device init if it does not support VERSION_1 (Jason)

Maxime Coquelin (3):
  vduse: validate block features only with block devices
  vduse: enable Virtio-net device type
  vduse: Temporarily disable control queue features

 drivers/vdpa/vdpa_user/vduse_dev.c | 51 +++++++++++++++++++++++++++---
 1 file changed, 47 insertions(+), 4 deletions(-)

-- 
2.41.0