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Thu, 16 Jan 2020 18:32:31 +0000 Received: from pps.filterd (userp3020.oracle.com [127.0.0.1]) by userp3020.oracle.com (8.16.0.27/8.16.0.27) with SMTP id 00GI9PML124446; Thu, 16 Jan 2020 18:30:31 GMT Received: from pps.reinject (localhost [127.0.0.1]) by userp3020.oracle.com with ESMTP id 2xj1ptje07-1 (version=TLSv1.2 cipher=ECDHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL); Thu, 16 Jan 2020 18:30:31 +0000 Received: from userp3020.oracle.com (userp3020.oracle.com [127.0.0.1]) by pps.reinject (8.16.0.27/8.16.0.27) with SMTP id 00GIU9ew190457; Thu, 16 Jan 2020 18:30:30 GMT Received: from ca-dev107.us.oracle.com (ca-dev107.us.oracle.com [10.129.135.36]) by userp3020.oracle.com with ESMTP id 2xj1ptjdxt-2; Thu, 16 Jan 2020 18:30:30 +0000 From: rao Shoaib To: linux-rdma@vger.kernel.org Cc: jgg@ziepe.ca, monis@mellanox.com, dledford@redhat.com, sean.hefty@intel.com, hal.rosenstock@gmail.com, linux-kernel@vger.kernel.org, Rao Shoaib Subject: [PATCH v4 1/2] RDMA/rxe: use RXE_MAX_WQE_SIZE to enforce limits Date: Thu, 16 Jan 2020 10:30:11 -0800 Message-Id: <1579199412-15741-2-git-send-email-rao.shoaib@oracle.com> X-Mailer: git-send-email 1.8.3.1 In-Reply-To: <1579199412-15741-1-git-send-email-rao.shoaib@oracle.com> References: <1579199412-15741-1-git-send-email-rao.shoaib@oracle.com> X-Proofpoint-Virus-Version: vendor=nai engine=6000 definitions=9502 signatures=668685 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 priorityscore=1501 malwarescore=0 suspectscore=1 phishscore=0 bulkscore=0 spamscore=0 clxscore=1015 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=983 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1911140001 definitions=main-2001160147 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Rao Shoaib Introduce RXE_MAX_WQE_SIZE to impose limits on max SGE's and inline data size Signed-off-by: Rao Shoaib --- drivers/infiniband/sw/rxe/rxe_param.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/sw/rxe/rxe_param.h b/drivers/infiniband/sw/rxe/rxe_param.h index 353c666..f59616b 100644 --- a/drivers/infiniband/sw/rxe/rxe_param.h +++ b/drivers/infiniband/sw/rxe/rxe_param.h @@ -34,6 +34,8 @@ #ifndef RXE_PARAM_H #define RXE_PARAM_H +#include + static inline enum ib_mtu rxe_mtu_int_to_enum(int mtu) { if (mtu < 256) @@ -64,7 +66,6 @@ enum rxe_device_param { RXE_PAGE_SIZE_CAP = 0xfffff000, RXE_MAX_QP = 0x10000, RXE_MAX_QP_WR = 0x4000, - RXE_MAX_INLINE_DATA = 400, RXE_DEVICE_CAP_FLAGS = IB_DEVICE_BAD_PKEY_CNTR | IB_DEVICE_BAD_QKEY_CNTR | IB_DEVICE_AUTO_PATH_MIG @@ -77,6 +78,10 @@ enum rxe_device_param { | IB_DEVICE_MEM_MGT_EXTENSIONS | IB_DEVICE_ALLOW_USER_UNREG, RXE_MAX_SGE = 32, + RXE_MAX_WQE_SIZE = sizeof(struct rxe_send_wqe) + + sizeof(struct ib_sge) * RXE_MAX_SGE, + RXE_MAX_INLINE_DATA = RXE_MAX_WQE_SIZE - + sizeof(struct rxe_send_wqe), RXE_MAX_SGE_RD = 32, RXE_MAX_CQ = 16384, RXE_MAX_LOG_CQE = 15, -- 1.8.3.1