From mboxrd@z Thu Jan 1 00:00:00 1970 Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.remote-ip=100.103.45.18 ARC-Seal: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; cv=none; t=1793922049; b=m5SR4QmUYEoY8Bhbv6dCw2NAfQhQY2y9h1cv53hu3m96DPknkoJiV0BGbxLl20WUvlM6 3MbOciLMThwMWQ7Y86S8eCwuPUUUomNaPtxjwU0aDUZ+Y98OGTKBqcOFf59r1NJRm61U/ T19mMkiJZ7espGd7UPlVMfgwgcLxTCkfXDYzoxeYL9dBrsf7Etmq+rYUWmFDsNyeEjwn4 yCsYEUyw1hqzxjhmzeN+nBCpOqn0SQIUH9PGqfvXoqnZCu6z8gk5lvq5q6QJbzTeOUSOt yKDTIdV1yHXfWT/Wq/l4XpFRNEX7FILa1ZXLCtWfkCsKKh0nyFHVP4ILpJET2xf4JHg== ARC-Message-Signature: i=1; d=subspace.kernel.org; s=arc20261015; a=rsa-sha256; c=relaxed/relaxed; t=1793922049; h=Received:DKIM-Signature:Date:From:To:Cc:Subject:Message-ID: In-Reply-To:References:MIME-Version:Content-Type: Content-Transfer-Encoding; bh=DALcyRp0vjX3To2DbsLGpJo7XYxiod9b2pPkFTmQfLk=; b=kzcbwWAoJDcbCtY2Y0W8j+rkXY4+CtLVXvcFcT9rGHiVQew43JoD3kjF2TEXWeRBHgtW VSRa5S5OZ/JLTm0G9hrDN1IlRPWIat3CSMNJgJbxorPkd0CC2Sv6bKSx7kOjEk9DcxZ0w 4HSSLXKLQuPLSsBWPU8hEo9/pJOm4aLtvtkWDTZ3yovw8lVjZcrd7kvIKX8Nq9wkFsQnR LltxHyPyrP8ISGDfkcpy9C/dQVqSAaPObF8fBh6U0QkZcwzmEaAeCtyPdl6keR/SMCjah MY20klZif3xlaTOvYWRyVCZUi37E6lEzwmVqR93B8C3iNGlfr1kD0xcRVc3K0mWujEw== ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=BCm4NjP2; arc=none smtp.remote-ip=100.103.45.18 Received: from smtp.kernel.org (quasi.space.kernel.org [100.103.45.18]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (prime256v1)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9DEED606A31B; Thu, 5 Nov 2026 23:40:48 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key, unprotected) header.d=kernel.org header.i=@kernel.org header.a=rsa-sha256 header.s=k20260515 header.b=BCm4NjP2 Received: by smtp.kernel.org (Postfix) with ESMTPSA id BF4A31F0089F; Thu, 5 Nov 2026 23:40:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1793922048; bh=DALcyRp0vjX3To2DbsLGpJo7XYxiod9b2pPkFTmQfLk=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=BCm4NjP2zzmaYQx55nDTiQotiZ0+FHR5odVzEn4z99P23s+3u9VzGxonfB4eoH0XA JaF3F08tmQfJK6/YdAkOMkyWnj2v9T5KPud/rUx4E4TG9kMBZE0+A4qYHoIWlzRYsk pYlg00lhrz+D1WXDg+jAanxy3Bodf/rKe8UdAxXevAQVYPDZxNp3TOJzDg2juGV6bS 4mwTbwhPXtKAD5OzKhGNKUyM3JW0MM7tIUe7Nkwtzc2BYR+l0piz5q7AspMbKeeKtt XL/i/rnwksQ0EPyJsg4T4nvNjulAUFF3dozdsT33aKtsin6UzrBLNJn09dmFJQmZz1 BniPbdkSVVZzw== Date: Thu, 5 Nov 2026 15:40:47 -0800 From: Jakub Kicinski To: Akhila Kavi Cc: Sammai Chakravarthy , Prasad Bolisetty , Andrew Lunn , "David S. Miller" , Eric Dumazet , Paolo Abeni , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Tzu-Hao Wei , Karthikeyan Mitran , Jeremy Kerr , Matt Johnston , netdev@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, openbmc@lists.ozlabs.org Subject: Re: [PATCH net-next 0/2] net: mctp: Add MCTP transport for the Axiado AX3005 IRoT Message-ID: <20261105154047.079c5eae@kernel.org> In-Reply-To: <20261101-mctp-transport-irot-ax3005-v1-0-36ceb822f01e@axiado.com> References: <20261101-mctp-transport-irot-ax3005-v1-0-36ceb822f01e@axiado.com> X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Post: List-Help: List-Subscribe: List-Unsubscribe: List-Owner: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Sun, 01 Nov 2026 06:00:56 -0800 Akhila Kavi wrote: > The Axiado AX3005 SoC has an integrated root-of-trust (IRoT) > co-processor next to the application processor. Security protocols such > as SPDM and PLDM run between the two over MCTP. This series adds a > transport for that link, so the host side uses ordinary AF_MCTP > sockets. > > The link is built from two channels of the AX3005 mailbox controller, > which is already supported (drivers/mailbox/axiado-mailbox.c, in the > base of this series), and a no-map reserved-memory carve-out. The > mailbox carries small doorbell and ACK messages. The packets > themselves go through two windows in the carve-out, one per direction, > which the IRoT firmware allocates and reports at probe time. Each > direction has one packet in flight, and every packet is acknowledged > with a counter. > > Patch 1 adds the devicetree binding and a MAINTAINERS entry. > Patch 2 adds the driver. net-next was still closed when you posted this. It only opened after: https://lore.kernel.org/all/66b35989-9195-4e96-99bb-df383a52aa5d@redhat.com/