netdev - Re: [PATCH 0/8] Introduce fwctl subystem

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Date: Mon, 3 Jun 2024 11:42:50 -0700
From: Jakub Kicinski <kuba@...nel.org>
To: Jason Gunthorpe <jgg@...dia.com>
Cc: Jonathan Corbet <corbet@....net>, Itay Avraham <itayavr@...dia.com>,
 Leon Romanovsky <leon@...nel.org>, linux-doc@...r.kernel.org,
 linux-rdma@...r.kernel.org, netdev@...r.kernel.org, Paolo Abeni
 <pabeni@...hat.com>, Saeed Mahameed <saeedm@...dia.com>, Tariq Toukan
 <tariqt@...dia.com>, Andy Gospodarek <andrew.gospodarek@...adcom.com>, Aron
 Silverton <aron.silverton@...cle.com>, Dan Williams
 <dan.j.williams@...el.com>, David Ahern <dsahern@...nel.org>, Christoph
 Hellwig <hch@...radead.org>, Jiri Pirko <jiri@...dia.com>, Leonid Bloch
 <lbloch@...dia.com>, Leon Romanovsky <leonro@...dia.com>,
 linux-cxl@...r.kernel.org, patches@...ts.linux.dev
Subject: Re: [PATCH 0/8] Introduce fwctl subystem

On Mon,  3 Jun 2024 12:53:16 -0300 Jason Gunthorpe wrote:
> fwctl is a new subsystem intended to bring some common rules and order to
> the growing pattern of exposing a secure FW interface directly to
> userspace. Unlike existing places like RDMA/DRM/VFIO/uacce that are
> exposing a device for datapath operations fwctl is focused on debugging,
> configuration and provisioning of the device. It will not have the
> necessary features like interrupt delivery to support a datapath.

If you have debug problems in your subsystem, put the APIs in your
subsystem. Don't force your choices on all the subsystems your device
interacts with:

Nacked-by: Jakub Kicinski <kuba@...nel.org>

Somewhat related, I saw nVidia sells various interesting features in
its DOCA stack. Is that Open Source?