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X-MS-Exchange-AntiSpam-MessageData-ChunkCount: 1 X-MS-Exchange-AntiSpam-MessageData-0: oEaNYFawuuHSd+dmVwVTRqt6S+swQQ7R7jsHLVl4Vq6bUbi0j5T1tn58ZgKpKh3aiFvEtCXcd5sdGUUUu4Qjd8Oo/rYChS9/LRrPN/NGniw/q9OA47vYicZTLVrpGVEsGFqhHXPRKwQLgWIYl2wZb1k0MDA2qu/v/2AjsJhrBiOWfvPmrwftZxZHd943A6m17XMOzKhu4PJgElHDJ1npWCXTFTkON+Mk5qF0MlGzrSlUWcNBOAj5aQKryWWfwkVSdzHWy/qYwEIpXGCiBK1/6HdKRMmIolYw5Co5Jbyoki/Cio5ZwthtYc9sQX3cgvMXZ8H3rUNAyYPFCqShTP7dJyNZ7EkWVOnj+KrCcDsGYuLt87cLLHB6NLuqCDnYNYHlxXe6k9ZjFm37J1vO7wDQHBB4HfbTgXMiQ/I0IjYxy+v+83IRieWOdop0MJrjELOM X-OriginatorOrg: Nvidia.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 02 Sep 2026 19:09:23.6520 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 213364dd-7c78-422c-e475-08df0925b369 X-MS-Exchange-CrossTenant-Id: 43083d15-7273-40c1-b7db-39efd9ccc17a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=43083d15-7273-40c1-b7db-39efd9ccc17a;Ip=[216.228.117.160];Helo=[mail.nvidia.com] X-MS-Exchange-CrossTenant-AuthSource: BN1PEPF00018548.namprd05.prod.outlook.com X-MS-Exchange-CrossTenant-AuthAs: Anonymous X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: BL3PR12MB6452 Hi JC, On 01.09.26 04:51, JC Chen[陳饒靜] wrote: > => P4 has BAR0 and MSI-X capability when CDEP function is enabled. If > the CDEP function is disabled, Port 4 is no BAR0 and no MSI-X > capability. However, in our design, even CDEP function is disabled, we > still check whether the memory address "hit" P4's MSI-X tables or not. [...] Thanks for the confirmation. I will send a v2 with a commit log that describes the mechanism and the affected topology. Regards, Nirmoy