linux-kernel - Re: [PATCH] net :mana : Add per-cpu stats for MANA device

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Date: Mon, 11 Mar 2024 08:51:26 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Shradha Gupta <shradhagupta@...ux.microsoft.com>
Cc: Haiyang Zhang <haiyangz@...rosoft.com>, Shradha Gupta
 <shradhagupta@...rosoft.com>, "linux-kernel@...r.kernel.org"
 <linux-kernel@...r.kernel.org>, "linux-hyperv@...r.kernel.org"
 <linux-hyperv@...r.kernel.org>, "linux-rdma@...r.kernel.org"
 <linux-rdma@...r.kernel.org>, "netdev@...r.kernel.org"
 <netdev@...r.kernel.org>, Eric Dumazet <edumazet@...gle.com>, Paolo Abeni
 <pabeni@...hat.com>, Ajay Sharma <sharmaajay@...rosoft.com>, Leon
 Romanovsky <leon@...nel.org>, Thomas Gleixner <tglx@...utronix.de>,
 Sebastian Andrzej Siewior <bigeasy@...utronix.de>, KY Srinivasan
 <kys@...rosoft.com>, Wei Liu <wei.liu@...nel.org>, Dexuan Cui
 <decui@...rosoft.com>, Long Li <longli@...rosoft.com>, Michael Kelley
 <mikelley@...rosoft.com>
Subject: Re: [PATCH] net :mana : Add per-cpu stats for MANA device

On Sun, 10 Mar 2024 21:19:50 -0700 Shradha Gupta wrote:
> > Seems unlikely, but if it does work we should enable it for all
> > devices, no driver by driver.  
> You mean, if the usecase seems valid we should try to extend the framework
> mentioned by Rahul (https://lore.kernel.org/lkml/20240307072923.6cc8a2ba@kernel.org/)
> to include these stats as well?

"framework" is a big word, but yes, add a netlink command to get 
pcpu stats. Let's focus on the usefulness before investing time
in a rewrite, tho.