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Tue, 15 Sep 2026 07:10:14 -0700 From: Yishai Hadas To: , CC: , , , , , , , , , , , , , , , Subject: [PATCH V1 rdma-next 02/15] RDMA/hns: Pin CQ buffer writable to match device DMA write access Date: Tue, 15 Sep 2026 17:09:20 +0300 Message-ID: <20260915140933.40580-3-yishaih@nvidia.com> X-Mailer: git-send-email 2.18.1 In-Reply-To: <20260915140933.40580-1-yishaih@nvidia.com> References: <20260915140933.40580-1-yishaih@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 X-NV-OnPremToCloud: ExternallySecured X-EOPAttributedMessage: 0 X-MS-PublicTrafficType: Email X-MS-TrafficTypeDiagnostic: SN1PEPF00036F3F:EE_|SA1PR12MB9492:EE_ X-MS-Office365-Filtering-Correlation-Id: 45dd3759-f43a-4307-0a37-08df13332528 X-LD-Processed: 43083d15-7273-40c1-b7db-39efd9ccc17a,ExtAddr X-MS-Exchange-SenderADCheck: 1 X-MS-Exchange-AntiSpam-Relay: 0 X-Microsoft-Antispam: BCL:0;ARA:13230040|23010399003|82310400026|36860700016|1800799024|376014|7416014|18002099003|10067099003|3023799007|22082099003|56012099006|11063799006; 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Set IB_ACCESS_LOCAL_WRITE so the buffer is pinned writable, matching the device's write access. Fixes: 744b7bdfa79e ("RDMA/hns: Support 0 hop addressing for CQE buffer") Signed-off-by: Yishai Hadas --- drivers/infiniband/hw/hns/hns_roce_cq.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/infiniband/hw/hns/hns_roce_cq.c b/drivers/infiniband/hw/hns/hns_roce_cq.c index 1dd0efb5620d..ae314f136732 100644 --- a/drivers/infiniband/hw/hns/hns_roce_cq.c +++ b/drivers/infiniband/hw/hns/hns_roce_cq.c @@ -261,6 +261,7 @@ static int alloc_cq_buf(struct hns_roce_dev *hr_dev, struct hns_roce_cq *hr_cq, buf_attr.region[0].size = hr_cq->cq_depth * hr_cq->cqe_size; buf_attr.region[0].hopnum = hr_dev->caps.cqe_hop_num; buf_attr.region_count = 1; + buf_attr.user_access = IB_ACCESS_LOCAL_WRITE; ret = hns_roce_mtr_create(hr_dev, &hr_cq->mtr, &buf_attr, hr_dev->caps.cqe_ba_pg_sz + PAGE_SHIFT, -- 2.18.1