linux-kernel - Re: [PATCH net-next V2 0/3] in order support for vhost-net

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Message-ID: <CAPpAL=zo2nom7=nL6y8g5N+7qR3oG+bVip1KFxCnJCu9V-M8nA@mail.gmail.com>
Date: Wed, 16 Jul 2025 09:12:27 +0800
From: Lei Yang <leiyang@...hat.com>
To: Jason Wang <jasowang@...hat.com>
Cc: mst@...hat.com, eperezma@...hat.com, kvm@...r.kernel.org, 
	virtualization@...ts.linux.dev, netdev@...r.kernel.org, 
	linux-kernel@...r.kernel.org, jonah.palmer@...cle.com
Subject: Re: [PATCH net-next V2 0/3] in order support for vhost-net

Tested this series of patches v2 with "virtio-net-pci,..,in_order=on",
regression tests pass.

Tested-by: Lei Yang <leiyang@...hat.com>

On Mon, Jul 14, 2025 at 4:48 PM Jason Wang <jasowang@...hat.com> wrote:
>
> Hi all,
>
> This series implements VIRTIO_F_IN_ORDER support for vhost-net. This
> feature is designed to improve the performance of the virtio ring by
> optimizing descriptor processing.
>
> Benchmarks show a notable improvement. Please see patch 3 for details.
>
> Changes since V1:
> - add a new patch to fail early when vhost_add_used() fails
> - drop unused parameters of vhost_add_used_ooo()
> - conisty nheads for vhost_add_used_in_order()
> - typo fixes and other tweaks
>
> Thanks
>
> Jason Wang (3):
>   vhost: fail early when __vhost_add_used() fails
>   vhost: basic in order support
>   vhost_net: basic in_order support
>
>  drivers/vhost/net.c   |  88 +++++++++++++++++++++---------
>  drivers/vhost/vhost.c | 123 ++++++++++++++++++++++++++++++++++--------
>  drivers/vhost/vhost.h |   8 ++-
>  3 files changed, 171 insertions(+), 48 deletions(-)
>
> --
> 2.39.5
>
>