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 struct cpu_rmap; 13 14 int mlx5_irq_table_init(struct mlx5_core_dev *dev); 15 void mlx5_irq_table_cleanup(struct mlx5_core_dev *dev); 16 int mlx5_irq_table_create(struct mlx5_core_dev *dev); 17 void mlx5_irq_table_destroy(struct mlx5_core_dev *dev); 18 void mlx5_irq_table_free_irqs(struct mlx5_core_dev *dev); 19 int mlx5_irq_table_get_num_comp(struct mlx5_irq_table *table); 20 int mlx5_irq_table_get_sfs_vec(struct mlx5_irq_table *table); 21 struct mlx5_irq_table *mlx5_irq_table_get(struct mlx5_core_dev *dev); 22 23 int mlx5_set_msix_vec_count(struct mlx5_core_dev *dev, int devfn, 24 int msix_vec_count); 25 int mlx5_get_default_msix_vec_count(struct mlx5_core_dev *dev, int num_vfs); 26 27 struct mlx5_irq *mlx5_ctrl_irq_request(struct mlx5_core_dev *dev); 28 void mlx5_ctrl_irq_release(struct mlx5_irq *ctrl_irq); 29 struct mlx5_irq *mlx5_irq_request(struct mlx5_core_dev *dev, u16 vecidx, 30 struct irq_affinity_desc *af_desc, 31 struct cpu_rmap **rmap); 32 int mlx5_irqs_request_vectors(struct mlx5_core_dev *dev, u16 *cpus, int nirqs, 33 struct mlx5_irq **irqs, struct cpu_rmap **rmap); 34 void mlx5_irqs_release_vectors(struct mlx5_irq **irqs, int nirqs); 35 int mlx5_irq_attach_nb(struct mlx5_irq *irq, struct notifier_block *nb); 36 int mlx5_irq_detach_nb(struct mlx5_irq *irq, struct notifier_block *nb); 37 struct cpumask *mlx5_irq_get_affinity_mask(struct mlx5_irq *irq); 38 int mlx5_irq_get_index(struct mlx5_irq *irq); 39 40 struct mlx5_irq_pool; 41 #ifdef CONFIG_MLX5_SF 42 int mlx5_irq_affinity_irqs_request_auto(struct mlx5_core_dev *dev, int nirqs, 43 struct mlx5_irq **irqs); 44 struct mlx5_irq *mlx5_irq_affinity_request(struct mlx5_irq_pool *pool, 45 struct irq_affinity_desc *af_desc); 46 void mlx5_irq_affinity_irqs_release(struct mlx5_core_dev *dev, struct mlx5_irq **irqs, 47 int num_irqs); 48 #else 49 static inline int mlx5_irq_affinity_irqs_request_auto(struct mlx5_core_dev *dev, int nirqs, 50 struct mlx5_irq **irqs) 51 { 52 return -EOPNOTSUPP; 53 } 54 55 static inline struct mlx5_irq * 56 mlx5_irq_affinity_request(struct mlx5_irq_pool *pool, struct irq_affinity_desc *af_desc) 57 { 58 return ERR_PTR(-EOPNOTSUPP); 59 } 60 61 static inline void mlx5_irq_affinity_irqs_release(struct mlx5_core_dev *dev, 62 struct mlx5_irq **irqs, int num_irqs) {} 63 #endif 64 #endif /* __MLX5_IRQ_H__ */ 65