hns_roce_bond.h

 1/* SPDX-License-Identifier: GPL-2.0+ */
 2/*
 3 * Copyright (c) 2025 Hisilicon Limited.
 4 */
 5
 6#ifndef _HNS_ROCE_BOND_H
 7#define _HNS_ROCE_BOND_H
 8
 9#include <linux/netdevice.h>
10#include <net/bonding.h>
11
12#define ROCE_BOND_FUNC_MAX 4
13#define ROCE_BOND_NUM_MAX 2
14
15#define BOND_ID(id) BIT(id)
16
17#define BOND_ERR_LOG(fmt, ...)				\
18	pr_err("HNS RoCE Bonding: " fmt, ##__VA_ARGS__)
19
20enum {
21	BOND_MODE_1,
22	BOND_MODE_2_4,
23};
24
25enum hns_roce_bond_hashtype {
26	BOND_HASH_L2,
27	BOND_HASH_L34,
28	BOND_HASH_L23,
29};
30
31enum bond_support_type {
32	BOND_NOT_SUPPORT,
33	/*
34	 * bond_grp already exists, but in the current
35	 * conditions it's no longer supported
36	 */
37	BOND_EXISTING_NOT_SUPPORT,
38	BOND_SUPPORT,
39};
40
41enum hns_roce_bond_state {
42	HNS_ROCE_BOND_NOT_ATTACHED,
43	HNS_ROCE_BOND_NOT_BONDED,
44	HNS_ROCE_BOND_IS_BONDED,
45	HNS_ROCE_BOND_SLAVE_CHANGE_NUM,
46	HNS_ROCE_BOND_SLAVE_CHANGESTATE,
47};
48
49enum hns_roce_bond_cmd_type {
50	HNS_ROCE_SET_BOND,
51	HNS_ROCE_CHANGE_BOND,
52	HNS_ROCE_CLEAR_BOND,
53};
54
55struct hns_roce_func_info {
56	struct net_device *net_dev;
57	struct hnae3_handle *handle;
58};
59
60struct hns_roce_bond_group {
61	struct net_device *upper_dev;
62	struct hns_roce_dev *main_hr_dev;
63	u8 active_slave_num;
64	u32 slave_map;
65	u32 active_slave_map;
66	u8 bond_id;
67	u8 bus_num;
68	struct hns_roce_func_info bond_func_info[ROCE_BOND_FUNC_MAX];
69	bool bond_ready;
70	enum hns_roce_bond_state bond_state;
71	enum netdev_lag_tx_type tx_type;
72	enum netdev_lag_hash hash_type;
73	struct mutex bond_mutex;
74	struct notifier_block bond_nb;
75	struct delayed_work bond_work;
76};
77
78struct hns_roce_die_info {
79	u8 bond_id_mask;
80	struct hns_roce_bond_group *bgrps[ROCE_BOND_NUM_MAX];
81	struct mutex die_mutex;
82	u8 suspend_cnt;
83};
84
85struct hns_roce_bond_group *hns_roce_get_bond_grp(struct net_device *net_dev,
86						  u8 bus_num);
87int hns_roce_alloc_bond_grp(struct hns_roce_dev *hr_dev);
88void hns_roce_dealloc_bond_grp(void);
89void hns_roce_cleanup_bond(struct hns_roce_bond_group *bond_grp);
90bool hns_roce_bond_is_active(struct hns_roce_dev *hr_dev);
91int hns_roce_bond_init(struct hns_roce_dev *hr_dev);
92void hns_roce_bond_suspend(struct hnae3_handle *handle);
93void hns_roce_bond_resume(struct hnae3_handle *handle);
94
95#endif