1/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
2/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
3
4#ifndef __MLX5_VNET_H__
5#define __MLX5_VNET_H__
6
7#include "mlx5_vdpa.h"
8
9#define to_mlx5_vdpa_ndev(__mvdev)                                             \
10	container_of(__mvdev, struct mlx5_vdpa_net, mvdev)
11#define to_mvdev(__vdev) container_of((__vdev), struct mlx5_vdpa_dev, vdev)
12
13struct mlx5_vdpa_net_resources {
14	u32 tisn;
15	u32 tdn;
16	u32 tirn;
17	u32 rqtn;
18	bool valid;
19	struct dentry *tirn_dent;
20};
21
22#define MLX5V_MACVLAN_SIZE 256
23
24static inline u16 key2vid(u64 key)
25{
26	return (u16)(key >> 48) & 0xfff;
27}
28
29#define MLX5_VDPA_IRQ_NAME_LEN 32
30
31struct mlx5_vdpa_irq_pool_entry {
32	struct msi_map map;
33	bool used;
34	char name[MLX5_VDPA_IRQ_NAME_LEN];
35	void *dev_id;
36};
37
38struct mlx5_vdpa_irq_pool {
39	int num_ent;
40	struct mlx5_vdpa_irq_pool_entry *entries;
41};
42
43struct mlx5_vdpa_net {
44	struct mlx5_vdpa_dev mvdev;
45	struct mlx5_vdpa_net_resources res;
46	struct virtio_net_config config;
47	struct mlx5_vdpa_virtqueue *vqs;
48	struct vdpa_callback *event_cbs;
49
50	/* Serialize vq resources creation and destruction. This is required
51	 * since memory map might change and we need to destroy and create
52	 * resources while driver in operational.
53	 */
54	struct rw_semaphore reslock;
55	struct mlx5_flow_table *rxft;
56	struct dentry *rx_dent;
57	struct dentry *rx_table_dent;
58	bool setup;
59	u32 cur_num_vqs;
60	u32 rqt_size;
61	bool nb_registered;
62	struct notifier_block nb;
63	struct vdpa_callback config_cb;
64	struct mlx5_vdpa_wq_ent cvq_ent;
65	struct hlist_head macvlan_hash[MLX5V_MACVLAN_SIZE];
66	struct mlx5_vdpa_irq_pool irqp;
67	struct dentry *debugfs;
68
69	u32 umem_1_buffer_param_a;
70	u32 umem_1_buffer_param_b;
71
72	u32 umem_2_buffer_param_a;
73	u32 umem_2_buffer_param_b;
74
75	u32 umem_3_buffer_param_a;
76	u32 umem_3_buffer_param_b;
77};
78
79struct mlx5_vdpa_counter {
80	struct mlx5_fc *counter;
81	struct dentry *dent;
82	struct mlx5_core_dev *mdev;
83};
84
85struct macvlan_node {
86	struct hlist_node hlist;
87	struct mlx5_flow_handle *ucast_rule;
88	struct mlx5_flow_handle *mcast_rule;
89	u64 macvlan;
90	struct mlx5_vdpa_net *ndev;
91	bool tagged;
92#if defined(CONFIG_MLX5_VDPA_STEERING_DEBUG)
93	struct dentry *dent;
94	struct mlx5_vdpa_counter ucast_counter;
95	struct mlx5_vdpa_counter mcast_counter;
96#endif
97};
98
99void mlx5_vdpa_add_debugfs(struct mlx5_vdpa_net *ndev);
100void mlx5_vdpa_remove_debugfs(struct mlx5_vdpa_net *ndev);
101void mlx5_vdpa_add_rx_flow_table(struct mlx5_vdpa_net *ndev);
102void mlx5_vdpa_remove_rx_flow_table(struct mlx5_vdpa_net *ndev);
103void mlx5_vdpa_add_tirn(struct mlx5_vdpa_net *ndev);
104void mlx5_vdpa_remove_tirn(struct mlx5_vdpa_net *ndev);
105#if defined(CONFIG_MLX5_VDPA_STEERING_DEBUG)
106void mlx5_vdpa_add_rx_counters(struct mlx5_vdpa_net *ndev,
107			       struct macvlan_node *node);
108void mlx5_vdpa_remove_rx_counters(struct mlx5_vdpa_net *ndev,
109				  struct macvlan_node *node);
110#else
111static inline void mlx5_vdpa_add_rx_counters(struct mlx5_vdpa_net *ndev,
112					     struct macvlan_node *node) {}
113static inline void mlx5_vdpa_remove_rx_counters(struct mlx5_vdpa_net *ndev,
114						struct macvlan_node *node) {}
115#endif
116
117
118#endif /* __MLX5_VNET_H__ */
119