1 /* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */ 2 /* Copyright (c) 2021 Mellanox Technologies. */ 3 4 #ifndef __MLX5_IRQ_H__ 5 #define __MLX5_IRQ_H__ 6 7 #include <linux/mlx5/driver.h> 8 9 #define MLX5_COMP_EQS_PER_SF 8 10 11 struct mlx5_irq; 12 13 int mlx5_irq_table_init(struct mlx5_core_dev *dev); 14 void mlx5_irq_table_cleanup(struct mlx5_core_dev *dev); 15 int mlx5_irq_table_create(struct mlx5_core_dev *dev); 16 void mlx5_irq_table_destroy(struct mlx5_core_dev *dev); 17 int mlx5_irq_table_get_num_comp(struct mlx5_irq_table *table); 18 int mlx5_irq_table_get_sfs_vec(struct mlx5_irq_table *table); 19 struct mlx5_irq_table *mlx5_irq_table_get(struct mlx5_core_dev *dev); 20 21 int mlx5_set_msix_vec_count(struct mlx5_core_dev *dev, int devfn, 22 int msix_vec_count); 23 int mlx5_get_default_msix_vec_count(struct mlx5_core_dev *dev, int num_vfs); 24 25 struct mlx5_irq *mlx5_ctrl_irq_request(struct mlx5_core_dev *dev); 26 void mlx5_ctrl_irq_release(struct mlx5_irq *ctrl_irq); 27 struct mlx5_irq *mlx5_irq_request(struct mlx5_core_dev *dev, u16 vecidx, 28 struct cpumask *affinity); 29 int mlx5_irqs_request_vectors(struct mlx5_core_dev *dev, u16 *cpus, int nirqs, 30 struct mlx5_irq **irqs); 31 void mlx5_irqs_release_vectors(struct mlx5_irq **irqs, int nirqs); 32 int mlx5_irq_attach_nb(struct mlx5_irq *irq, struct notifier_block *nb); 33 int mlx5_irq_detach_nb(struct mlx5_irq *irq, struct notifier_block *nb); 34 struct cpumask *mlx5_irq_get_affinity_mask(struct mlx5_irq *irq); 35 int mlx5_irq_get_index(struct mlx5_irq *irq); 36 37 struct mlx5_irq_pool; 38 #ifdef CONFIG_MLX5_SF 39 int mlx5_irq_affinity_irqs_request_auto(struct mlx5_core_dev *dev, int nirqs, 40 struct mlx5_irq **irqs); 41 struct mlx5_irq *mlx5_irq_affinity_request(struct mlx5_irq_pool *pool, 42 const struct cpumask *req_mask); 43 void mlx5_irq_affinity_irqs_release(struct mlx5_core_dev *dev, struct mlx5_irq **irqs, 44 int num_irqs); 45 #else 46 static inline int mlx5_irq_affinity_irqs_request_auto(struct mlx5_core_dev *dev, int nirqs, 47 struct mlx5_irq **irqs) 48 { 49 return -EOPNOTSUPP; 50 } 51 52 static inline struct mlx5_irq * 53 mlx5_irq_affinity_request(struct mlx5_irq_pool *pool, const struct cpumask *req_mask) 54 { 55 return ERR_PTR(-EOPNOTSUPP); 56 } 57 58 static inline void mlx5_irq_affinity_irqs_release(struct mlx5_core_dev *dev, 59 struct mlx5_irq **irqs, int num_irqs) {} 60 #endif 61 #endif /* __MLX5_IRQ_H__ */ 62