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Received-SPF: Pass (protection.outlook.com: domain of amd.com designates 165.204.84.17 as permitted sender) receiver=protection.outlook.com; client-ip=165.204.84.17; helo=SATLEXMB04.amd.com; pr=C Received: from SATLEXMB04.amd.com (165.204.84.17) by CO1PEPF000044FA.mail.protection.outlook.com (10.167.241.200) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.20.6723.5 via Frontend Transport; Wed, 16 Aug 2023 01:22:32 +0000 Received: from platform-dev1.pensando.io (10.180.168.240) by SATLEXMB04.amd.com (10.181.40.145) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2507.27; Tue, 15 Aug 2023 20:22:28 -0500 From: Brad Larson To: CC: , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , , Subject: Re: [PATCH v15 4/6] arm64: Add config for AMD Pensando SoC platforms Date: Tue, 15 Aug 2023 18:22:21 -0700 Message-ID: <20230816012221.59796-1-blarson@amd.com> X-Mailer: git-send-email 2.17.1 In-Reply-To: References: MIME-Version: 1.0 Content-Type: text/plain; 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X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 16 Aug 2023 01:22:32.2912 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8fde4db9-6285-4967-c479-08db9df743e2 X-MS-Exchange-CrossTenant-Id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=3dd8961f-e488-4e60-8e11-a82d994e183d;Ip=[165.204.84.17];Helo=[SATLEXMB04.amd.com] X-MS-Exchange-CrossTenant-AuthSource: CO1PEPF000044FA.namprd21.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: MW3PR12MB4425 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Jonathan, On Mon, Aug 14, 2023 at 10:40:17 +0200, Jonathan Neuschäfer wrote: > On Fri, Aug 11, 2023 at 11:05:17AM -0700, Brad Larson wrote: >> Add ARCH_PENSANDO configuration option for AMD Pensando SoC >> based platforms. >> >> Signed-off-by: Brad Larson >> --- > [...] >> +config ARCH_PENSANDO >> + bool "AMD Pensando Platforms" >> + help >> + This enables support for the ARMv8 based AMD Pensando SoC >> + family to include the Elba SoC. >> + >> + AMD Pensando SoCs support a range of Distributed Services >> + Cards in PCIe format installed into servers. The Elba >> + SoC includes 16 A-72 CPU cores, 144 programmable P4 >> + cores for a minimal latency/jitter datapath, and network > > Out of curiosity, what are A-72 and P4? > > A-72 sounds like Arm Cortex A-72, P4 seems to refer to the P4 > programming language (https://opennetworking.org/p4/). > > Perhaps something like: > >+ Cards in PCIe format installed into servers. The Elba >+ SoC includes 16 Cortex A-72 CPU cores, 144 P4-programmable >+ cores for a minimal latency/jitter datapath, and network Thanks for the review! Yes, exactly. I'll add that change which makes the description more precise. Regards, Brad