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Wed, 06 May 2026 07:27:17 -0700 (PDT) Received: from FV6GYCPJ69 ([2001:1ae9:6084:ab00:8c0b:afdd:3d9d:e976]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-45055960973sm12802512f8f.30.2026.05.06.07.27.16 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 06 May 2026 07:27:17 -0700 (PDT) Date: Wed, 6 May 2026 16:27:15 +0200 From: Jiri Pirko To: Jason Gunthorpe Cc: linux-rdma@vger.kernel.org, leon@kernel.org, mrgolin@amazon.com, gal.pressman@linux.dev, sleybo@amazon.com, parav@nvidia.com, mbloch@nvidia.com, yanjun.zhu@linux.dev, marco.crivellari@suse.com, roman.gushchin@linux.dev, phaddad@nvidia.com, lirongqing@baidu.com, ynachum@amazon.com, huangjunxian6@hisilicon.com, kalesh-anakkur.purayil@broadcom.com, ohartoov@nvidia.com, michaelgur@nvidia.com, shayd@nvidia.com, edwards@nvidia.com, sriharsha.basavapatna@broadcom.com, andrew.gospodarek@broadcom.com, selvin.xavier@broadcom.com Subject: Re: [PATCH rdma-next v3 07/17] RDMA/uverbs: Add CQ buffer UMEM attribute and driver helpers Message-ID: References: <20260504135731.2345383-1-jiri@resnulli.us> <20260504135731.2345383-8-jiri@resnulli.us> 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: Wed, May 06, 2026 at 03:46:38PM +0200, jgg@ziepe.ca wrote: >On Mon, May 04, 2026 at 03:57:21PM +0200, Jiri Pirko wrote: >> From: Jiri Pirko >> >> Add UVERBS_ATTR_CREATE_CQ_BUF_UMEM and two driver-facing >> wrappers, ib_umem_get_cq_buf() and ib_umem_get_cq_buf_or_va(), >> that pin a CQ buffer umem from it. The wrappers reuse the >> existing legacy CQ buffer-attr filler. > >Did you look at converting all drivers to use >ib_umem_get_cq_buf_or_va()? Is it just a quick cocinille job? Didn't check if ib_umem_get_cq_buf_or_va(), some driver may use ib_umem_get_cq_buf() (like EFA does) but yes, that is planned as a follow-up patch to convert the rest. Should not be hard. > >The QP one is probably an AI job.. The QP, I'm not sure about. I can check that out for follow-up, but I assume this will be non trivial.