linux-kernel - Re: [PATCH 00/19] virtio

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Message-ID: <1743385770.0724318-1-xuanzhuo@linux.alibaba.com>
Date: Mon, 31 Mar 2025 09:49:30 +0800
From: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To: Jason Wang <jasowang@...hat.com>
Cc: eperezma@...hat.com,
 virtualization@...ts.linux.dev,
 linux-kernel@...r.kernel.org,
 mst@...hat.com,
 jasowang@...hat.com
Subject: Re: [PATCH 00/19] virtio_ring in order support


For series:

Reviewed-by: Xuan Zhuo <xuanzhuo@...ux.alibaba.com>

Thanks.

On Mon, 24 Mar 2025 13:43:14 +0800, Jason Wang <jasowang@...hat.com> wrote:
> Hello all:
>
> This sereis tries to implement the VIRTIO_F_IN_ORDER to
> virtio_ring. This is done by introducing virtqueue ops so we can
> implement separate helpers for different virtqueue layout/features
> then the in-order were implmeented on top.
>
> Tests shows 5% imporvemnt in RX PPS with KVM guest + testpmd on the
> host.
>
> Please review.
>
> Thanks
>
> Jason Wang (19):
>   virtio_ring: rename virtqueue_reinit_xxx to virtqueue_reset_xxx()
>   virtio_ring: switch to use vring_virtqueue in virtqueue_poll variants
>   virtio_ring: unify logic of virtqueue_poll() and more_used()
>   virtio_ring: switch to use vring_virtqueue for virtqueue resize
>     variants
>   virtio_ring: switch to use vring_virtqueue for virtqueue_kick_prepare
>     variants
>   virtio_ring: switch to use vring_virtqueue for virtqueue_add variants
>   virtio: switch to use vring_virtqueue for virtqueue_add variants
>   virtio_ring: switch to use vring_virtqueue for enable_cb_prepare
>     variants
>   virtio_ring: use vring_virtqueue for enable_cb_delayed variants
>   virtio_ring: switch to use vring_virtqueue for disable_cb variants
>   virtio_ring: switch to use vring_virtqueue for detach_unused_buf
>     variants
>   virtio_ring: use u16 for last_used_idx in virtqueue_poll_split()
>   virtio_ring: introduce virtqueue ops
>   virtio_ring: determine descriptor flags at one time
>   virtio_ring: factor out core logic of buffer detaching
>   virtio_ring: factor out core logic for updating last_used_idx
>   virtio_ring: move next_avail_idx to vring_virtqueue
>   virtio_ring: factor out split indirect detaching logic
>   virtio_ring: add in order support
>
>  drivers/virtio/virtio_ring.c | 856 ++++++++++++++++++++++++++---------
>  1 file changed, 653 insertions(+), 203 deletions(-)
>
> --
> 2.42.0
>