linux-kernel - Re: [PATCH net 0/4] virtio_net: Make RSS interact properly with queue number

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Message-ID: <20241106043106-mutt-send-email-mst@kernel.org>
Date: Wed, 6 Nov 2024 04:31:24 -0500
From: "Michael S. Tsirkin" <mst@...hat.com>
To: Philo Lu <lulie@...ux.alibaba.com>
Cc: netdev@...r.kernel.org, jasowang@...hat.com, xuanzhuo@...ux.alibaba.com,
	eperezma@...hat.com, andrew+netdev@...n.ch, davem@...emloft.net,
	edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com,
	andrew@...nix.com, virtualization@...ts.linux.dev,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net 0/4] virtio_net: Make RSS interact properly with
 queue number

On Mon, Nov 04, 2024 at 04:57:02PM +0800, Philo Lu wrote:
> With this patch set, RSS updates with queue_pairs changing:
> - When virtnet_probe, init default rss and commit
> - When queue_pairs changes _without_ user rss configuration, update rss
>   with the new queue number
> - When queue_pairs changes _with_ user rss configuration, keep rss as user
>   configured
> 
> Patch 1 and 2 fix possible out of bound errors for indir_table and key.
> Patch 3 and 4 add RSS update in probe() and set_queues().
> 
> Please review, thanks.

Looks reasonable.

Acked-by: Michael S. Tsirkin <mst@...hat.com>

> Philo Lu (4):
>   virtio_net: Support dynamic rss indirection table size
>   virtio_net: Add hash_key_length check
>   virtio_net: Sync rss config to device when virtnet_probe
>   virtio_net: Update rss when set queue
> 
>  drivers/net/virtio_net.c | 119 ++++++++++++++++++++++++++++++++-------
>  1 file changed, 100 insertions(+), 19 deletions(-)
> 
> --
> 2.32.0.3.g01195cf9f