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 D138D25A34A; Tue, 11 Feb 2025 18:51:16 +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=1739299876; cv=none; b=fxlRf4MZ5yqP7pPlayLKTKWmQa3ZNC5v3KcpxXjx3TQU9CaZ9fIHHuA805HGekt1frwx43vQjh+yaLgi+apUDtBe6Ros0PNb+zxTmMxltQt7/10nnMcCkHTv93s3BT5XvQpvtQcIPeEuSeb7vY/IFAp+IfrwlhIdl8QtuyHKLR0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1739299876; c=relaxed/simple; bh=Ohe9V0q672zCdoryIimZs3HHDJAtmxB5pXzVohyN7R8=; h=Date:From:To:Cc:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition:In-Reply-To; b=cr4MoVTe+d6f7YHdBt53ZW0U01f5hHkOzQQcWpL4GHRfDB7jQ/s1nttYZEolICVGuoQxHVnSOXWlD6AGPuV4vhnGBy23T0DIq+UrOELU4Y0lbJSQdOR9s9YBQahO9lyYfFLlQ5aKjoH/HBBei2UsOs8ANvaWtprfBpIaMxxkDgw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=RrvOPc2G; 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="RrvOPc2G" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 28F36C4CEDD; Tue, 11 Feb 2025 18:51:16 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1739299876; bh=Ohe9V0q672zCdoryIimZs3HHDJAtmxB5pXzVohyN7R8=; h=Date:From:To:Cc:Subject:In-Reply-To:From; b=RrvOPc2GRQp/LPOxVDx8qCjQ54V6om1qedpDU9/ZXP4AYThY3YoyxvK0d1wgFqINn aghFyq5VATD5XzHqlJfC/j991uDsxsnBfOrtp5R1RoZPrKxm2elowhb0VsH50qBJwX 4B8DIYZMRSSTQHj25Ty1xRMs/jQrmXQOKPP8jfJ1m5U9jav988nKvXP24VcMS5d5fl /IurUqwbLNs4yF2TR86WG2sV4acwW8AaGc5o17sP64jfM2lBsUouRgrWIQz1mOKgst LIM77vQPstPfmAXqS9SdDiBC8K8HyxHj5uoVpnsLKSPcEa45ZFqMKTx+3QZJog9fXv 4NrAVxxd8s7HA== Date: Tue, 11 Feb 2025 12:51:14 -0600 From: Bjorn Helgaas To: Thippeswamy Havalige Cc: bhelgaas@google.com, lpieralisi@kernel.org, kw@linux.com, manivannan.sadhasivam@linaro.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-pci@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, michal.simek@amd.com, bharat.kumar.gogada@amd.com Subject: Re: [PATCH 2/2] PCI: xilinx-cpm: Add support for Versal Net CPM5NC Root Port controller Message-ID: <20250211185114.GA51552@bhelgaas> Precedence: bulk X-Mailing-List: devicetree@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250211081724.320279-3-thippeswamy.havalige@amd.com> On Tue, Feb 11, 2025 at 01:47:24PM +0530, Thippeswamy Havalige wrote: > The Versal Net ACAP (Adaptive Compute Acceleration Platform) devices > incorporate the Coherency and PCIe Gen5 Module, specifically the > Next-Generation Compact Module (CPM5NC). > > The integrated CPM5NC block, along with the built-in bridge, can function > as a PCIe Root Port & supports the PCIe Gen5 protocol with data transfer > rates of up to 32 GT/s, capable of supporting up to a x16 lane-width > configuration. > > Bridge errors are managed using a specific interrupt line designed for > CPM5N. Legacy interrupt support is not available. I guess this means INTx support is not available? If so, I'd like to say "INTx" instead of "legacy" to be more specific. Someday "MSI" may also be considered "legacy". Bjorn