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Wed, 01 Jul 2026 05:40:26 -0700 (PDT) Received: from localhost ([140.209.217.212]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-493c3874f62sm14930975e9.2.2026.07.01.05.40.25 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 01 Jul 2026 05:40:26 -0700 (PDT) From: Jiri Pirko To: linux-rdma@vger.kernel.org Cc: jgg@ziepe.ca, leon@kernel.org, mrgolin@amazon.com Subject: [PATCH rdma-next v3 2/3] RDMA/mlx5: Use UMEM attribute for SRQ buffer in create_srq Date: Wed, 1 Jul 2026 14:40:14 +0200 Message-ID: <20260701124015.64350-3-jiri@resnulli.us> X-Mailer: git-send-email 2.54.0 In-Reply-To: <20260701124015.64350-1-jiri@resnulli.us> References: <20260701124015.64350-1-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 Use the per-attribute UMEM helper to pin the SRQ buffer umem on demand. ib_umem_get_attr_or_va() resolves the new CREATE_SRQ_BUF_UMEM attribute when present and otherwise falls back to the existing UHW ucmd->buf_addr VA, preserving the legacy behavior. Signed-off-by: Jiri Pirko --- drivers/infiniband/hw/mlx5/srq.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/mlx5/srq.c b/drivers/infiniband/hw/mlx5/srq.c index 5bc48fef3744..6fa4c5a9a0d5 100644 --- a/drivers/infiniband/hw/mlx5/srq.c +++ b/drivers/infiniband/hw/mlx5/srq.c @@ -48,6 +48,8 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq, struct mlx5_ib_create_srq ucmd; struct mlx5_ib_ucontext *ucontext = rdma_udata_to_drv_context( udata, struct mlx5_ib_ucontext, ibucontext); + struct uverbs_attr_bundle *attrs = + rdma_udata_to_uverbs_attr_bundle(udata); int err; u32 uidx = MLX5_IB_DEFAULT_UIDX; @@ -66,7 +68,9 @@ static int create_srq_user(struct ib_pd *pd, struct mlx5_ib_srq *srq, srq->wq_sig = !!(ucmd.flags & MLX5_SRQ_FLAG_SIGNATURE); - srq->umem = ib_umem_get_va(pd->device, ucmd.buf_addr, buf_size, 0); + srq->umem = ib_umem_get_attr_or_va(pd->device, attrs, + UVERBS_ATTR_CREATE_SRQ_BUF_UMEM, + ucmd.buf_addr, buf_size, 0); if (IS_ERR(srq->umem)) { mlx5_ib_dbg(dev, "failed umem get, size %d\n", buf_size); err = PTR_ERR(srq->umem); -- 2.54.0