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 3C0FB20ADC9; Fri, 4 Apr 2025 20:11:41 +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=1743797502; cv=none; b=aAMvSdfiNTa0qGpELOquPvZyuoMBcIvS4ejo/lZ1nHP/VjKz4bR0n9tuWd+T2WudD0WboFHwbCsQVuLop7Caslg/rjonA1boP4u5AWQKAvzAp7/m4MkF68bL9ay2wt66n02utS2U7yU6iYNKLCNWMViD7ZF4ROkm1s0yrDKTtdw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743797502; c=relaxed/simple; bh=VHeRdeU1SaiFj8DJEwuhTtm9mNs5SIztyxEFxics7os=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=oZB+LyrNiaoC0VhJdZMyV5L8sEgkDfzEG/bkOuNuhW2h7QZISDX99P6S4s+P+JQhy28XvvRbPbosW29vtc5QdDOwHhnWKtz7kcbhkT6wXS9kkx89MSyDdsXZ5raWaZsNnO1rZ43SoNiMBPEUDp34SsDhNtLaAjXYDXa60vfEt7I= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=GAmhRw7N; 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="GAmhRw7N" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 5B142C4CEDD; Fri, 4 Apr 2025 20:11:41 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1743797501; bh=VHeRdeU1SaiFj8DJEwuhTtm9mNs5SIztyxEFxics7os=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=GAmhRw7Nz52NW/mVabsCa688AdBJSVdZkV1u1WrVh4Ig1it56SoT6FD/MZv5N6aj2 Ttq1X3XOJkzXfty8JVHMdmJA7mfW8hangGrm80Ra7FDXShmQXXfpXZC2P8qgC5Jp+s uT0vlIO1IWcTxTTQNffblOjXVclF9rOn9xkb5OLCMH3RRzgn11MwOHniYCR2wV4tLD 9dcXkPLT1uewh810i7xpoIW7iBxu+bSFZlLBfuG9AvUcgpbfmqRECY74Rm0HGT6GLr Pvccpg3Vra1Bfv2lTc+sZHuctyRI/NFIZAKZjA1CL0P5GdvdS6Mw60hPa4pydOKfu/ EF9kclGKQM1QA== Date: Fri, 4 Apr 2025 15:11:40 -0500 From: Rob Herring To: Frank Li Cc: Kishon Vijay Abraham I , "Rafael J. Wysocki" , Thomas Gleixner , Anup Patel , Marc Zyngier , Greg Kroah-Hartman , Danilo Krummrich , Manivannan Sadhasivam , Krzysztof =?utf-8?Q?Wilczy=C5=84ski?= , Bjorn Helgaas , Arnd Bergmann , Shuah Khan , Richard Zhu , Lucas Stach , Lorenzo Pieralisi , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , Krzysztof Kozlowski , Conor Dooley , Niklas Cassel , dlemoal@kernel.org, jdmason@kudzu.us, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-pci@vger.kernel.org, linux-kselftest@vger.kernel.org, imx@lists.linux.dev, devicetree@vger.kernel.org Subject: Re: [PATCH v16 04/15] dt-bindings: pci: pci-msi: Add support for PCI Endpoint msi-map Message-ID: <20250404201140.GA236599-robh@kernel.org> References: <20250404-ep-msi-v16-0-d4919d68c0d0@nxp.com> <20250404-ep-msi-v16-4-d4919d68c0d0@nxp.com> Precedence: bulk X-Mailing-List: imx@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250404-ep-msi-v16-4-d4919d68c0d0@nxp.com> On Fri, Apr 04, 2025 at 03:01:05PM -0400, Frank Li wrote: > Document the use of msi-map for PCI Endpoint (EP) controllers, which can > use MSI as a doorbell mechanism. Each EP controller can support up to 8 > physical functions and 65,536 virtual functions. > > Define how to construct device IDs using function bits [2:0] and virtual > function index bits [31:3], enabling msi-map to associate each child device > with a specific msi-specifier. > > Include a device tree example illustrating this configuration. > > Signed-off-by: Frank Li > --- > change from v15 to v16 > - new patch > --- > Documentation/devicetree/bindings/pci/pci-msi.txt | 51 +++++++++++++++++++++++ > 1 file changed, 51 insertions(+) Please don't add to .txt files. Rob