From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id E4F781CD38; Mon, 3 Jun 2024 18:42:52 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717440173; cv=none; b=jp5ccXD3ah5LAsXGt3DK/4EdF4RyiOpp8s77ouwq1PE0fWMfuE4XofexgLtbxKM5AzAirf8zeRXw1a0v3DC0xTAi/50HeamwiBXO0JhPdIDN1K/AUKz30QBtWWOdPgvy1xZrEobIAt+Oq16tfI1rNofs4fN8lpqtV68GPGyuQCQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717440173; c=relaxed/simple; bh=nW1jlc/m9thV6uF+r0tV6tWnOtpg0higsRLy7TBagJ8=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=cZE7Bxmn0A8c9uURNcHAJ1ouw30dCPKFQhXqbv6mdBop9qphr5F8gepTnwdJVrZuT1tf2Dort8/QCpszLXLCpRoco7ZgpFSN16MmB6KOtyeki5WDOucrZ+1M2JUdxdcDBRZsFm4X1gIuNV+Vuu0njDNhwFuPUWTixnKtBOrTDaw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Ca7B5HyH; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Ca7B5HyH" Received: by smtp.kernel.org (Postfix) with ESMTPSA id AC6FFC2BD10; Mon, 3 Jun 2024 18:42:51 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1717440172; bh=nW1jlc/m9thV6uF+r0tV6tWnOtpg0higsRLy7TBagJ8=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=Ca7B5HyH9cEPGGyTQxh10LS2F4upi3uZuqCrsvjzvbvUBqaHBJf3zgZQ3ve8h5zCx Yufh4XpPuC78dKOD/g/70o3il1Auw/7LM0gRmoUfq31dG9NLsjQnTp/ITfUYc9d/g+ PvnenDfdBZxHm4w2/N2j3wTfTq+pABCE54hjTLbTJPk+Qha6b2u3E6rK5hU+d/7gk4 20QdFDQJa27PXBGubHm+yvsbakYoAcHaU6uHQV3doq+VJF/7pO4yWqC2CHhWvXxhle slW9G/u+ConSfHoIjTT0Fw5Rec/VESNCEYsLCDZtBlYsUfurSnbMbwc2Y5LVxK34dA hbHpP/582vefQ== Date: Mon, 3 Jun 2024 11:42:50 -0700 From: Jakub Kicinski To: Jason Gunthorpe Cc: Jonathan Corbet , Itay Avraham , Leon Romanovsky , linux-doc@vger.kernel.org, linux-rdma@vger.kernel.org, netdev@vger.kernel.org, Paolo Abeni , Saeed Mahameed , Tariq Toukan , Andy Gospodarek , Aron Silverton , Dan Williams , David Ahern , Christoph Hellwig , Jiri Pirko , Leonid Bloch , Leon Romanovsky , linux-cxl@vger.kernel.org, patches@lists.linux.dev Subject: Re: [PATCH 0/8] Introduce fwctl subystem Message-ID: <20240603114250.5325279c@kernel.org> In-Reply-To: <0-v1-9912f1a11620+2a-fwctl_jgg@nvidia.com> References: <0-v1-9912f1a11620+2a-fwctl_jgg@nvidia.com> Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit 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 Somewhat related, I saw nVidia sells various interesting features in its DOCA stack. Is that Open Source?