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

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Message-Id: <20241104085706.13872-1-lulie@linux.alibaba.com>
Date: Mon,  4 Nov 2024 16:57:02 +0800
From: Philo Lu <lulie@...ux.alibaba.com>
To: netdev@...r.kernel.org
Cc: mst@...hat.com,
	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: [PATCH net 0/4] virtio_net: Make RSS interact properly with queue number

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.

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