1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2/*
3 * Copyright (c) 2013-2018, Mellanox Technologies. All rights reserved.
4 */
5
6#ifndef MLX5_IB_SRQ_H
7#define MLX5_IB_SRQ_H
8
9enum {
10 MLX5_SRQ_FLAG_ERR = (1 << 0),
11 MLX5_SRQ_FLAG_WQ_SIG = (1 << 1),
12 MLX5_SRQ_FLAG_RNDV = (1 << 2),
13};
14
15struct mlx5_srq_attr {
16 u32 type;
17 u32 flags;
18 u32 log_size;
19 u32 wqe_shift;
20 u32 log_page_size;
21 u32 wqe_cnt;
22 u32 srqn;
23 u32 xrcd;
24 u32 page_offset;
25 u32 cqn;
26 u32 pd;
27 u32 lwm;
28 u32 user_index;
29 u64 db_record;
30 __be64 *pas;
31 struct ib_umem *umem;
32 u32 tm_log_list_size;
33 u32 tm_next_tag;
34 u32 tm_hw_phase_cnt;
35 u32 tm_sw_phase_cnt;
36 u16 uid;
37};
38
39struct mlx5_ib_dev;
40
41struct mlx5_core_srq {
42 struct mlx5_core_rsc_common common; /* must be first */
43 u32 srqn;
44 int max;
45 size_t max_gs;
46 size_t max_avail_gather;
47 int wqe_shift;
48 void (*event)(struct mlx5_core_srq *srq, enum mlx5_event e);
49
50 u16 uid;
51};
52
53struct mlx5_srq_table {
54 struct notifier_block nb;
55 struct xarray array;
56};
57
58int mlx5_cmd_create_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
59 struct mlx5_srq_attr *in);
60int mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq);
61int mlx5_cmd_query_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
62 struct mlx5_srq_attr *out);
63int mlx5_cmd_arm_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
64 u16 lwm, int is_srq);
65struct mlx5_core_srq *mlx5_cmd_get_srq(struct mlx5_ib_dev *dev, u32 srqn);
66
67int mlx5_init_srq_table(struct mlx5_ib_dev *dev);
68void mlx5_cleanup_srq_table(struct mlx5_ib_dev *dev);
69#endif /* MLX5_IB_SRQ_H */
70

source code of linux/drivers/infiniband/hw/mlx5/srq.h