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 struct mlx5_irq_pool;
14
15 int mlx5_irq_table_init(struct mlx5_core_dev *dev);
16 void mlx5_irq_table_cleanup(struct mlx5_core_dev *dev);
17 int mlx5_irq_table_create(struct mlx5_core_dev *dev);
18 void mlx5_irq_table_destroy(struct mlx5_core_dev *dev);
19 void mlx5_irq_table_free_irqs(struct mlx5_core_dev *dev);
20 struct mlx5_irq_pool *
21 mlx5_irq_table_get_comp_irq_pool(struct mlx5_core_dev *dev);
22 int mlx5_irq_table_get_num_comp(struct mlx5_irq_table *table);
23 int mlx5_irq_table_get_sfs_vec(struct mlx5_irq_table *table);
24 struct mlx5_irq_table *mlx5_irq_table_get(struct mlx5_core_dev *dev);
25
26 int mlx5_set_msix_vec_count(struct mlx5_core_dev *dev, int devfn,
27 int msix_vec_count);
28 int mlx5_get_default_msix_vec_count(struct mlx5_core_dev *dev, int num_vfs);
29
30 struct mlx5_irq *mlx5_ctrl_irq_request(struct mlx5_core_dev *dev);
31 void mlx5_ctrl_irq_release(struct mlx5_core_dev *dev, struct mlx5_irq *ctrl_irq);
32 struct mlx5_irq *mlx5_irq_request(struct mlx5_core_dev *dev, u16 vecidx,
33 struct irq_affinity_desc *af_desc,
34 struct cpu_rmap **rmap);
35 struct mlx5_irq *mlx5_irq_request_vector(struct mlx5_core_dev *dev, u16 cpu,
36 u16 vecidx, struct cpu_rmap **rmap);
37 void mlx5_irq_release_vector(struct mlx5_irq *irq);
38 int mlx5_irq_attach_nb(struct mlx5_irq *irq, struct notifier_block *nb);
39 int mlx5_irq_detach_nb(struct mlx5_irq *irq, struct notifier_block *nb);
40 struct cpumask *mlx5_irq_get_affinity_mask(struct mlx5_irq *irq);
41 int mlx5_irq_get_index(struct mlx5_irq *irq);
42 int mlx5_irq_get_irq(const struct mlx5_irq *irq);
43
44 #ifdef CONFIG_MLX5_SF
45 struct mlx5_irq *mlx5_irq_affinity_irq_request_auto(struct mlx5_core_dev *dev,
46 struct cpumask *used_cpus, u16 vecidx);
47 struct mlx5_irq *
48 mlx5_irq_affinity_request(struct mlx5_core_dev *dev, struct mlx5_irq_pool *pool,
49 struct irq_affinity_desc *af_desc);
50 void mlx5_irq_affinity_irq_release(struct mlx5_core_dev *dev, struct mlx5_irq *irq);
51 #else
52 static inline
mlx5_irq_affinity_irq_request_auto(struct mlx5_core_dev * dev,struct cpumask * used_cpus,u16 vecidx)53 struct mlx5_irq *mlx5_irq_affinity_irq_request_auto(struct mlx5_core_dev *dev,
54 struct cpumask *used_cpus, u16 vecidx)
55 {
56 return ERR_PTR(-EOPNOTSUPP);
57 }
58
59 static inline struct mlx5_irq *
mlx5_irq_affinity_request(struct mlx5_core_dev * dev,struct mlx5_irq_pool * pool,struct irq_affinity_desc * af_desc)60 mlx5_irq_affinity_request(struct mlx5_core_dev *dev, struct mlx5_irq_pool *pool,
61 struct irq_affinity_desc *af_desc)
62 {
63 return ERR_PTR(-EOPNOTSUPP);
64 }
65
66 static inline
mlx5_irq_affinity_irq_release(struct mlx5_core_dev * dev,struct mlx5_irq * irq)67 void mlx5_irq_affinity_irq_release(struct mlx5_core_dev *dev, struct mlx5_irq *irq)
68 {
69 mlx5_irq_release_vector(irq);
70 }
71 #endif
72 #endif /* __MLX5_IRQ_H__ */
73