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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB *//* Copyright (c) 2018 Mellanox Technologies. */
#ifndef MLX5_CORE_EQ_H#define MLX5_CORE_EQ_H
#define MLX5_NUM_CMD_EQE (32)#define MLX5_NUM_ASYNC_EQE (0x1000)#define MLX5_NUM_SPARE_EQE (0x80)
struct mlx5_eq;struct mlx5_irq;struct mlx5_core_dev;
struct mlx5_eq_param { int nent; u64 mask[4]; struct mlx5_irq *irq;};
struct mlx5_eq *mlx5_eq_create_generic(struct mlx5_core_dev *dev, struct mlx5_eq_param *param);intmlx5_eq_destroy_generic(struct mlx5_core_dev *dev, struct mlx5_eq *eq);int mlx5_eq_enable(struct mlx5_core_dev *dev, struct mlx5_eq *eq, struct notifier_block *nb);void mlx5_eq_disable(struct mlx5_core_dev *dev, struct mlx5_eq *eq, struct notifier_block *nb);
struct mlx5_eqe *mlx5_eq_get_eqe(struct mlx5_eq *eq, u32 cc);void mlx5_eq_update_ci(struct mlx5_eq *eq, u32 cc, bool arm);
/* The HCA will think the queue has overflowed if we * don't tell it we've been processing events. We * create EQs with MLX5_NUM_SPARE_EQE extra entries, * so we must update our consumer index at * least that often. * * mlx5_eq_update_cc must be called on every EQE @EQ irq handler */static inline u32 mlx5_eq_update_cc(struct mlx5_eq *eq, u32 cc){ if (unlikely(cc >= MLX5_NUM_SPARE_EQE)) { mlx5_eq_update_ci(eq, cc, 0); cc = 0; } return cc;}
struct mlx5_nb { struct notifier_block nb; u8 event_type;};
#define mlx5_nb_cof(ptr, type, member) \ (container_of(container_of(ptr, struct mlx5_nb, nb), type, member))
#define MLX5_NB_INIT(name, handler, event) do { \ (name)->nb.notifier_call = handler; \ (name)->event_type = MLX5_EVENT_TYPE_##event; \} while (0)
#endif /* MLX5_CORE_EQ_H */