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Message-ID: <20250801132128.69940aab@kernel.org>
Date: Fri, 1 Aug 2025 13:21:28 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jason Gunthorpe <jgg@...pe.ca>
Cc: Simon Horman <horms@...nel.org>, Abhijit Gangurde
<abhijit.gangurde@....com>, shannon.nelson@....com, brett.creeley@....com,
davem@...emloft.net, edumazet@...gle.com, pabeni@...hat.com,
corbet@....net, leon@...nel.org, andrew+netdev@...n.ch,
allen.hubbe@....com, nikhil.agarwal@....com, linux-rdma@...r.kernel.org,
netdev@...r.kernel.org, linux-doc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: Re: [PATCH v4 03/14] net: ionic: Export the APIs from net driver to
support device commands
On Fri, 1 Aug 2025 14:00:14 -0300 Jason Gunthorpe wrote:
> > Perhaps I misunderstand things, or otherwise am on the wrong track here.
> > But this seems to open the possibility of users of ionic_adminq_post_wait(),
> > outside the Ethernet driver, executing a wide range or admin commands.
> > It seems to me that it would be nice to narrow that surface.
>
> The kernel is monolithic, it is not normal to spend performance
> aggressively policing APIs.
>
> mlx5 and other drivers already have interfaces almost exactly like this.
Which is not to say that it's a good idea.
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