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63 lines
1.7 KiB
63 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ |
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/* Copyright (c) 2018 Mellanox Technologies. */ |
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#ifndef MLX5_CORE_EQ_H |
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#define MLX5_CORE_EQ_H |
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#define MLX5_IRQ_VEC_COMP_BASE 1 |
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#define MLX5_NUM_CMD_EQE (32) |
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#define MLX5_NUM_ASYNC_EQE (0x1000) |
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#define MLX5_NUM_SPARE_EQE (0x80) |
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struct mlx5_eq; |
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struct mlx5_core_dev; |
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struct mlx5_eq_param { |
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u8 irq_index; |
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int nent; |
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u64 mask[4]; |
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}; |
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struct mlx5_eq * |
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mlx5_eq_create_generic(struct mlx5_core_dev *dev, struct mlx5_eq_param *param); |
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int |
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mlx5_eq_destroy_generic(struct mlx5_core_dev *dev, struct mlx5_eq *eq); |
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int mlx5_eq_enable(struct mlx5_core_dev *dev, struct mlx5_eq *eq, |
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struct notifier_block *nb); |
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void mlx5_eq_disable(struct mlx5_core_dev *dev, struct mlx5_eq *eq, |
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struct notifier_block *nb); |
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struct mlx5_eqe *mlx5_eq_get_eqe(struct mlx5_eq *eq, u32 cc); |
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void mlx5_eq_update_ci(struct mlx5_eq *eq, u32 cc, bool arm); |
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/* The HCA will think the queue has overflowed if we |
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* don't tell it we've been processing events. We |
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* create EQs with MLX5_NUM_SPARE_EQE extra entries, |
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* so we must update our consumer index at |
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* least that often. |
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* |
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* mlx5_eq_update_cc must be called on every EQE @EQ irq handler |
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*/ |
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static inline u32 mlx5_eq_update_cc(struct mlx5_eq *eq, u32 cc) |
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{ |
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if (unlikely(cc >= MLX5_NUM_SPARE_EQE)) { |
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mlx5_eq_update_ci(eq, cc, 0); |
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cc = 0; |
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} |
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return cc; |
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} |
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struct mlx5_nb { |
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struct notifier_block nb; |
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u8 event_type; |
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}; |
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#define mlx5_nb_cof(ptr, type, member) \ |
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(container_of(container_of(ptr, struct mlx5_nb, nb), type, member)) |
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#define MLX5_NB_INIT(name, handler, event) do { \ |
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(name)->nb.notifier_call = handler; \ |
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(name)->event_type = MLX5_EVENT_TYPE_##event; \ |
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} while (0) |
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#endif /* MLX5_CORE_EQ_H */
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