1 files changed, 73 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/srq.h b/drivers/infiniband/hw/mlx5/srq.h
new file mode 100644
index 000000000000..75eb5839ae95
--- /dev/null
+++ b/drivers/infiniband/hw/mlx5/srq.h
@@ -0,0 +1,73 @@
+/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
+/*
+ * Copyright (c) 2013-2018, Mellanox Technologies. All rights reserved.
+ */
+
+#ifndef MLX5_IB_SRQ_H
+#define MLX5_IB_SRQ_H
+
+enum {
+	MLX5_SRQ_FLAG_ERR    = (1 << 0),
+	MLX5_SRQ_FLAG_WQ_SIG = (1 << 1),
+	MLX5_SRQ_FLAG_RNDV   = (1 << 2),
+};
+
+struct mlx5_srq_attr {
+	u32 type;
+	u32 flags;
+	u32 log_size;
+	u32 wqe_shift;
+	u32 log_page_size;
+	u32 wqe_cnt;
+	u32 srqn;
+	u32 xrcd;
+	u32 page_offset;
+	u32 cqn;
+	u32 pd;
+	u32 lwm;
+	u32 user_index;
+	u64 db_record;
+	__be64 *pas;
+	u32 tm_log_list_size;
+	u32 tm_next_tag;
+	u32 tm_hw_phase_cnt;
+	u32 tm_sw_phase_cnt;
+	u16 uid;
+};
+
+struct mlx5_ib_dev;
+
+struct mlx5_core_srq {
+	struct mlx5_core_rsc_common common; /* must be first */
+	u32 srqn;
+	int max;
+	size_t max_gs;
+	size_t max_avail_gather;
+	int wqe_shift;
+	void (*event)(struct mlx5_core_srq *srq, enum mlx5_event e);
+
+	atomic_t refcount;
+	struct completion free;
+	u16 uid;
+};
+
+struct mlx5_srq_table {
+	struct notifier_block nb;
+	/* protect radix tree
+	 */
+	spinlock_t lock;
+	struct radix_tree_root tree;
+};
+
+int mlx5_cmd_create_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
+			struct mlx5_srq_attr *in);
+int mlx5_cmd_destroy_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq);
+int mlx5_cmd_query_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
+		       struct mlx5_srq_attr *out);
+int mlx5_cmd_arm_srq(struct mlx5_ib_dev *dev, struct mlx5_core_srq *srq,
+		     u16 lwm, int is_srq);
+struct mlx5_core_srq *mlx5_cmd_get_srq(struct mlx5_ib_dev *dev, u32 srqn);
+
+int mlx5_init_srq_table(struct mlx5_ib_dev *dev);
+void mlx5_cleanup_srq_table(struct mlx5_ib_dev *dev);
+#endif /* MLX5_IB_SRQ_H */