LXR linux/drivers/infiniband/hw/mlx5/srq.h

   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