From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 057B43911D3; Wed, 16 Sep 2026 02:11:51 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789524718; cv=none; b=o5FUeQ3I9q6D+3trQ/68dVXdVL0hA7gGfN6KuFa0h7R1dVXBuFf1sNX4IIC0lUDitzRK+COXPUr/GPEkUIoqJXwhZT9c++4Vf0+68Vzv4+BmVkq+/ccXUdLrQ4POM87K5/TVwYNfVhGrGBrbc5Ucjj/LyeX1Z3LB8Hkch/+ovRI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1789524718; c=relaxed/simple; bh=uCFZKGnELsOuvKNM600f2yPtF1shycAz4L+aSeqUdH4=; h=Date:From:To:Cc:Subject:Message-ID:In-Reply-To:References: MIME-Version:Content-Type; b=VodVjX9kkZvbk9zEvr8abdtEXC4zni+ZSH0vs4/Oiv9izM1Qt5Xckl56icCvBQb/A8FmiUqUr4bWr5cBJ8eIcDjkTtC7U+mdLLJdmHvFBoIw7sewTt77ZrOxD/mNlW2AlShV6xmr9OaBiH8PjO/zaC04F/ZCFYA+78S49oKAqHY= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=Bb277c0z; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="Bb277c0z" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5541C1F000FF; Wed, 16 Sep 2026 02:11:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1789524708; bh=b8d91GfrJN1CxUWhvlzjJ0CoRKKZjGBuQt69kTjAMbk=; h=Date:From:To:Cc:Subject:In-Reply-To:References; b=Bb277c0z/yYkw8DIHFxcHZIccTEbZvLVNASBQXE0g+2SlBQK2N3WgvJmdORw86M3W 8pz6Pdd7uWMN7UWryfhY2Mc7w3PxQI8250YC2jkdGCRkIBqde6cKOSIOmhagDyVvfp OzEAZZxKf/xkrVaU39rELJtZMjF/Ila9UE+7vCpe66ajDS9mkE7yKi3aIgH0R4k0A5 jFJ2L6DKpSeQHh0HazC7pAJyNH6iPpIp/d6MpOyfs49Uq2J2rcTQNs0iwFbDVO6ZMa E0Gmpy3RliiDifpteDeuIqCXB66umIkxItWwzgaA97OpAFaMyna6G6vUOqYeaIOdJl 9OolQ95jUyMIA== Date: Wed, 16 Sep 2026 03:11:43 +0100 From: Jonathan Cameron To: Alistair Cc: alistair23@gmail.com, linux-pci@vger.kernel.org, Jonathan.Cameron@huawei.com, djbw@kernel.org, rust-for-linux@vger.kernel.org, lukas@wunner.de, linux-cxl@vger.kernel.org, bhelgaas@google.com, akpm@linux-foundation.org, linux-kernel@vger.kernel.org, gary@garyguo.net, ojeda@kernel.org, benno.lossin@proton.me, a.hindborg@kernel.org, wilfred.mallawa@wdc.com, tmgross@umich.edu, boqun.feng@gmail.com, bjorn3_gh@protonmail.com, alex.gaynor@gmail.com, aliceryhl@google.com Subject: Re: [PATCH v3 10/21] PCI/TSM: Rename pf0 to host Message-ID: <20260916031143.4fe2ae49@jic23-hlaptop> In-Reply-To: References: <20260901010347.2614656-1-alistair.francis@wdc.com> <20260901010347.2614656-11-alistair.francis@wdc.com> <20260909000158.78ffa790@jic23-huawei> X-Mailer: Claws Mail 4.4.0 (GTK 3.24.52; x86_64-pc-linux-gnu) Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable On Fri, 11 Sep 2026 15:00:59 +1000 Alistair wrote: > On Wed, 2026-09-09 at 00:01 +0100, Jonathan Cameron wrote: > > On Tue,=C2=A0 1 Sep 2026 11:03:36 +1000 > > alistair23@gmail.com=C2=A0wrote: > > =20 > > > From: Alistair Francis > > >=20 > > > Rename pci_tsm_pf0 to pci_tsm_host (and rename variables and > > > function > > > names from pf0 to host) as part of converting pci_tsm_host > > > to be any device that knows how to speak any of CMA, IDE, or > > > TDISP. =20 > >=20 > > I'm not against the change, but I would like at least one example of > > 'what' other type of device you plan to use this for. > >=20 > > vf or something else? =20 >=20 > It's based on the reply here: https://lkml.org/lkml/2026/6/18/1741 >=20 > I don't know PCIe that well, so honestly I'm not sure. Yeah, that's about both VFs and other physical functions. Those can exist on both real EPs and RCiEPs. >=20 > My use case is a root complex integrated endpoint Any more info to share on that? Why isn't it attested etc as part of the host given it's integrated? Or is SPDM a path to something other than simple attestation here? Fine to do it this way, just seems like overkill so I'm curious what the application is. Jonathan