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
13 struct 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
key2vid(u64 key)24 static inline u16 key2vid(u64 key)
25 {
26 return (u16)(key >> 48) & 0xfff;
27 }
28
29 struct mlx5_vdpa_net {
30 struct mlx5_vdpa_dev mvdev;
31 struct mlx5_vdpa_net_resources res;
32 struct virtio_net_config config;
33 struct mlx5_vdpa_virtqueue *vqs;
34 struct vdpa_callback *event_cbs;
35
36 /* Serialize vq resources creation and destruction. This is required
37 * since memory map might change and we need to destroy and create
38 * resources while driver in operational.
39 */
40 struct rw_semaphore reslock;
41 struct mlx5_flow_table *rxft;
42 struct dentry *rx_dent;
43 struct dentry *rx_table_dent;
44 bool setup;
45 u32 cur_num_vqs;
46 u32 rqt_size;
47 bool nb_registered;
48 struct notifier_block nb;
49 struct vdpa_callback config_cb;
50 struct mlx5_vdpa_wq_ent cvq_ent;
51 struct hlist_head macvlan_hash[MLX5V_MACVLAN_SIZE];
52 struct dentry *debugfs;
53 };
54
55 struct mlx5_vdpa_counter {
56 struct mlx5_fc *counter;
57 struct dentry *dent;
58 struct mlx5_core_dev *mdev;
59 };
60
61 struct macvlan_node {
62 struct hlist_node hlist;
63 struct mlx5_flow_handle *ucast_rule;
64 struct mlx5_flow_handle *mcast_rule;
65 u64 macvlan;
66 struct mlx5_vdpa_net *ndev;
67 bool tagged;
68 #if defined(CONFIG_MLX5_VDPA_STEERING_DEBUG)
69 struct dentry *dent;
70 struct mlx5_vdpa_counter ucast_counter;
71 struct mlx5_vdpa_counter mcast_counter;
72 #endif
73 };
74
75 void mlx5_vdpa_add_debugfs(struct mlx5_vdpa_net *ndev);
76 void mlx5_vdpa_remove_debugfs(struct dentry *dbg);
77 void mlx5_vdpa_add_rx_flow_table(struct mlx5_vdpa_net *ndev);
78 void mlx5_vdpa_remove_rx_flow_table(struct mlx5_vdpa_net *ndev);
79 void mlx5_vdpa_add_tirn(struct mlx5_vdpa_net *ndev);
80 void mlx5_vdpa_remove_tirn(struct mlx5_vdpa_net *ndev);
81 #if defined(CONFIG_MLX5_VDPA_STEERING_DEBUG)
82 void mlx5_vdpa_add_rx_counters(struct mlx5_vdpa_net *ndev,
83 struct macvlan_node *node);
84 void mlx5_vdpa_remove_rx_counters(struct mlx5_vdpa_net *ndev,
85 struct macvlan_node *node);
86 #else
mlx5_vdpa_add_rx_counters(struct mlx5_vdpa_net * ndev,struct macvlan_node * node)87 static inline void mlx5_vdpa_add_rx_counters(struct mlx5_vdpa_net *ndev,
88 struct macvlan_node *node) {}
mlx5_vdpa_remove_rx_counters(struct mlx5_vdpa_net * ndev,struct macvlan_node * node)89 static inline void mlx5_vdpa_remove_rx_counters(struct mlx5_vdpa_net *ndev,
90 struct macvlan_node *node) {}
91 #endif
92
93
94 #endif /* __MLX5_VNET_H__ */
95