Linux Audio

Check our new training course

Embedded Linux Audio

Check our new training course
with Creative Commons CC-BY-SA
lecture materials

Bootlin logo

Elixir Cross Referencer

Open Menu / drivers / net / ethernet / mellanox / mlx5 / core / mlx5_irq.h
Loading...
 1
 2
 3
 4
 5
 6
 7
 8
 9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/* Copyright (c) 2021 Mellanox Technologies. */

#ifndef __MLX5_IRQ_H__
#define __MLX5_IRQ_H__

#include <linux/mlx5/driver.h>

#define MLX5_COMP_EQS_PER_SF 8

struct mlx5_irq;

int mlx5_irq_table_init(struct mlx5_core_dev *dev);
void mlx5_irq_table_cleanup(struct mlx5_core_dev *dev);
int mlx5_irq_table_create(struct mlx5_core_dev *dev);
void mlx5_irq_table_destroy(struct mlx5_core_dev *dev);
void mlx5_irq_table_free_irqs(struct mlx5_core_dev *dev);
int mlx5_irq_table_get_num_comp(struct mlx5_irq_table *table);
int mlx5_irq_table_get_sfs_vec(struct mlx5_irq_table *table);
struct mlx5_irq_table *mlx5_irq_table_get(struct mlx5_core_dev *dev);

int mlx5_set_msix_vec_count(struct mlx5_core_dev *dev, int devfn,
			    int msix_vec_count);
int mlx5_get_default_msix_vec_count(struct mlx5_core_dev *dev, int num_vfs);

struct mlx5_irq *mlx5_ctrl_irq_request(struct mlx5_core_dev *dev);
void mlx5_ctrl_irq_release(struct mlx5_irq *ctrl_irq);
struct mlx5_irq *mlx5_irq_request(struct mlx5_core_dev *dev, u16 vecidx,
				  struct cpumask *affinity);
int mlx5_irqs_request_vectors(struct mlx5_core_dev *dev, u16 *cpus, int nirqs,
			      struct mlx5_irq **irqs);
void mlx5_irqs_release_vectors(struct mlx5_irq **irqs, int nirqs);
int mlx5_irq_attach_nb(struct mlx5_irq *irq, struct notifier_block *nb);
int mlx5_irq_detach_nb(struct mlx5_irq *irq, struct notifier_block *nb);
struct cpumask *mlx5_irq_get_affinity_mask(struct mlx5_irq *irq);
int mlx5_irq_get_index(struct mlx5_irq *irq);

struct mlx5_irq_pool;
#ifdef CONFIG_MLX5_SF
int mlx5_irq_affinity_irqs_request_auto(struct mlx5_core_dev *dev, int nirqs,
					struct mlx5_irq **irqs);
struct mlx5_irq *mlx5_irq_affinity_request(struct mlx5_irq_pool *pool,
					   const struct cpumask *req_mask);
void mlx5_irq_affinity_irqs_release(struct mlx5_core_dev *dev, struct mlx5_irq **irqs,
				    int num_irqs);
#else
static inline int mlx5_irq_affinity_irqs_request_auto(struct mlx5_core_dev *dev, int nirqs,
						      struct mlx5_irq **irqs)
{
	return -EOPNOTSUPP;
}

static inline struct mlx5_irq *
mlx5_irq_affinity_request(struct mlx5_irq_pool *pool, const struct cpumask *req_mask)
{
	return ERR_PTR(-EOPNOTSUPP);
}

static inline void mlx5_irq_affinity_irqs_release(struct mlx5_core_dev *dev,
						  struct mlx5_irq **irqs, int num_irqs) {}
#endif
#endif /* __MLX5_IRQ_H__ */