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Mon, 04 May 2026 06:57:56 -0700 (PDT) Received: from localhost ([85.163.81.98]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48a822c3422sm303472795e9.8.2026.05.04.06.57.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 04 May 2026 06:57:55 -0700 (PDT) From: Jiri Pirko To: linux-rdma@vger.kernel.org Cc: jgg@ziepe.ca, 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: [PATCH rdma-next v3 13/17] RDMA/uverbs: Use UMEM attributes for QP creation Date: Mon, 4 May 2026 15:57:27 +0200 Message-ID: <20260504135731.2345383-14-jiri@resnulli.us> X-Mailer: git-send-email 2.53.0 In-Reply-To: <20260504135731.2345383-1-jiri@resnulli.us> References: <20260504135731.2345383-1-jiri@resnulli.us> Precedence: bulk X-Mailing-List: linux-rdma@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Jiri Pirko Apply the per-attribute UMEM model to the QP create method. Add optional UMEM attributes for the whole-QP, RQ, and SQ buffers that drivers pick from. Signed-off-by: Jiri Pirko --- v2->v3: - replaced the array-form UVERBS_ATTR_BUFFERS attribute and its uverbs_buf_qp_slots enum with per-attribute UMEM attrs - dropped qp->umem_list field, handler allocation, write-path NULL arg, and the umem_list parameter on ib_create_qp_user() v1->v2: - fixed umem_list double free --- drivers/infiniband/core/uverbs_std_types_qp.c | 6 ++++++ include/uapi/rdma/ib_user_ioctl_cmds.h | 3 +++ 2 files changed, 9 insertions(+) diff --git a/drivers/infiniband/core/uverbs_std_types_qp.c b/drivers/infiniband/core/uverbs_std_types_qp.c index be0730e8509e..e44974abc6b5 100644 --- a/drivers/infiniband/core/uverbs_std_types_qp.c +++ b/drivers/infiniband/core/uverbs_std_types_qp.c @@ -340,6 +340,12 @@ DECLARE_UVERBS_NAMED_METHOD( UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CREATE_QP_RESP_QP_NUM, UVERBS_ATTR_TYPE(u32), UA_MANDATORY), + UVERBS_ATTR_UMEM(UVERBS_ATTR_CREATE_QP_BUF_UMEM, + UA_OPTIONAL), + UVERBS_ATTR_UMEM(UVERBS_ATTR_CREATE_QP_RQ_BUF_UMEM, + UA_OPTIONAL), + UVERBS_ATTR_UMEM(UVERBS_ATTR_CREATE_QP_SQ_BUF_UMEM, + UA_OPTIONAL), UVERBS_ATTR_UHW()); static int UVERBS_HANDLER(UVERBS_METHOD_QP_DESTROY)( diff --git a/include/uapi/rdma/ib_user_ioctl_cmds.h b/include/uapi/rdma/ib_user_ioctl_cmds.h index 02835b7fd76d..839835bd4b23 100644 --- a/include/uapi/rdma/ib_user_ioctl_cmds.h +++ b/include/uapi/rdma/ib_user_ioctl_cmds.h @@ -159,6 +159,9 @@ enum uverbs_attrs_create_qp_cmd_attr_ids { UVERBS_ATTR_CREATE_QP_EVENT_FD, UVERBS_ATTR_CREATE_QP_RESP_CAP, UVERBS_ATTR_CREATE_QP_RESP_QP_NUM, + UVERBS_ATTR_CREATE_QP_BUF_UMEM, + UVERBS_ATTR_CREATE_QP_RQ_BUF_UMEM, + UVERBS_ATTR_CREATE_QP_SQ_BUF_UMEM, }; enum uverbs_attrs_destroy_qp_cmd_attr_ids { -- 2.53.0