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[102.182.140.48]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-488fb7a051dsm166569075e9.18.2026.04.23.12.18.00 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 23 Apr 2026 12:18:00 -0700 (PDT) From: Bruce Merry X-Google-Original-From: Bruce Merry Received: by watcher (Postfix, from userid 1000) id 86CED2C1036; Thu, 23 Apr 2026 21:17:57 +0200 (SAST) Date: Thu, 23 Apr 2026 21:17:57 +0200 To: Yishai Hadas Cc: netdev@vger.kernel.org Subject: Re: Help with PCIe THP on ConnectX-7 Message-ID: Reply-To: bmerry@gmail.com References: <58a85178-c00f-4705-aa20-61e668bb9216@nvidia.com> Precedence: bulk X-Mailing-List: netdev@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: <58a85178-c00f-4705-aa20-61e668bb9216@nvidia.com> On Thu, Apr 23, 2026 at 05:55:53PM +0300, Yishai Hadas wrote: > On 22/04/2026 18:22, Bruce Merry wrote: > > Hello > > > > I'm hoping someone from NVIDIA Networking can help with this; I wasn't > > sure of the best way to get in contact with the engineers working on > > mlx5 kernel code so thought I'd try here. I'm trying to write some > > (userspace) code using ibv_reg_mr_ex to register a memory region using > > TLP Processing Hints (THP) to improve performance on an Epyc Turin ... > It's supported only on CX8 for now. Thanks. Does "for now" mean that you expect it to become available on CX7 in future, and if so, are you able to say anything about timelines? Thanks Bruce -- Dr Bruce Merry bmerry <@> gmail <.> com http://www.brucemerry.org.za/ http://blog.brucemerry.org.za/