linux-kernel - Re: [PATCH net-next 3/3] net/mlx4: support per-queue statistics via netlink

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Date: Wed, 24 Apr 2024 20:46:55 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Joe Damato <jdamato@...tly.com>
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org, tariqt@...dia.com,
 saeedm@...dia.com, mkarsten@...terloo.ca, gal@...dia.com,
 nalramli@...tly.com, "David S. Miller" <davem@...emloft.net>, Eric Dumazet
 <edumazet@...gle.com>, Paolo Abeni <pabeni@...hat.com>, "open list:MELLANOX
 MLX4 core VPI driver" <linux-rdma@...r.kernel.org>
Subject: Re: [PATCH net-next 3/3] net/mlx4: support per-queue statistics via
 netlink

On Wed, 24 Apr 2024 09:39:40 -0700 Joe Damato wrote:
> FWIW, I also attempted to implement this API for i40e (hardware I also
> have):
> 
>   https://lore.kernel.org/lkml/20240410043936.206169-1-jdamato@fastly.com/

Ah, missed the second patch on that thread initially!

> But there are some complications I haven't resolved, so I'm focusing on
> mlx4 and mlx5, first, and will have to come back to i40e later.

FWIW I hope this series will get ironed out soon and we'll have far
more qstats defined:
https://lore.kernel.org/all/20240423113141.1752-1-xuanzhuo@linux.alibaba.com/

The drop counts in particular could be useful in production, not so
sure about the rest :)