Unverified Commit 198abaf6 authored by openeuler-ci-bot's avatar openeuler-ci-bot Committed by Gitee
Browse files

!10161 RDMA/mlx5: Add check for srq max_sge attribute 

Merge Pull Request from: @ci-robot 
 
PR sync from: Liu Jian <liujian56@huawei.com>
https://mailweb.openeuler.org/hyperkitty/list/kernel@openeuler.org/message/3HNCLK4LRTMGWXZWAHHK6KI2TTVP4SP6/ 
 
https://gitee.com/src-openeuler/kernel/issues/IACS56 
 
Link:https://gitee.com/openeuler/kernel/pulls/10161

 

Reviewed-by: default avatarYue Haibing <yuehaibing@huawei.com>
Signed-off-by: default avatarZhang Peng <zhangpeng362@huawei.com>
parents 4059a0e2 1878df15

drivers/infiniband/hw/mlx5/srq.c

+8 −5
Original line number Diff line number Diff line
@@ -199,17 +199,20 @@ int mlx5_ib_create_srq(struct ib_srq *ib_srq, 
	int err;

	struct mlx5_srq_attr in = {};

	__u32 max_srq_wqes = 1 << MLX5_CAP_GEN(dev->mdev, log_max_srq_sz);

	__u32 max_sge_sz =  MLX5_CAP_GEN(dev->mdev, max_wqe_sz_rq) /

			    sizeof(struct mlx5_wqe_data_seg);



	if (init_attr->srq_type != IB_SRQT_BASIC &&

	    init_attr->srq_type != IB_SRQT_XRC &&

	    init_attr->srq_type != IB_SRQT_TM)

		return -EOPNOTSUPP;



	/* Sanity check SRQ size before proceeding */

	if (init_attr->attr.max_wr >= max_srq_wqes) {

		mlx5_ib_dbg(dev, "max_wr %d, cap %d\n",

			    init_attr->attr.max_wr,

			    max_srq_wqes);

	/* Sanity check SRQ and sge size before proceeding */

	if (init_attr->attr.max_wr >= max_srq_wqes ||

	    init_attr->attr.max_sge > max_sge_sz) {

		mlx5_ib_dbg(dev, "max_wr %d,wr_cap %d,max_sge %d, sge_cap:%d\n",

			    init_attr->attr.max_wr, max_srq_wqes,

			    init_attr->attr.max_sge, max_sge_sz);

		return -EINVAL;

	}