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Wed, 22 Jul 2026 12:41:04 -0700 (PDT) Received: from jgg by NV-9X0Z6D3.localdomain with local (Exim 4.97) (envelope-from ) id 1wmcoR-000000001AM-2I6K; Wed, 22 Jul 2026 16:41:03 -0300 Date: Wed, 22 Jul 2026 16:41:03 -0300 From: Jason Gunthorpe To: Leon Romanovsky Cc: "Mike Rapoport (Microsoft)" , linux-rdma@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH rdma-next] RDMA/mlx5: Make sure that UMR page is aligned to PAGE_SIZE Message-ID: References: <20260722-fix-get-order-alignment-v1-1-ece212ddb5dc@nvidia.com> Precedence: bulk X-Mailing-List: linux-rdma@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: <20260722-fix-get-order-alignment-v1-1-ece212ddb5dc@nvidia.com> On Wed, Jul 22, 2026 at 02:41:13PM +0300, Leon Romanovsky wrote: > From: Leon Romanovsky > > The UMR XLT buffer needs to be aligned to PAGE_SIZE. Why? It goes into a sgl? The device certainly does not work on PAGE_SIZE, so if there is some alignment here it should be the MLX5 adaptor alignment Jason