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/* SPDX-License-Identifier: GPL-2.0+ */
/*
* Copyright (c) 2025 Hisilicon Limited.
*/
#ifndef _HNS_ROCE_BOND_H
#define _HNS_ROCE_BOND_H
#include <linux/netdevice.h>
#include <net/bonding.h>
#define ROCE_BOND_FUNC_MAX 4
#define ROCE_BOND_NUM_MAX 2
#define BOND_ID(id) BIT(id)
#define BOND_ERR_LOG(fmt, ...) \
pr_err("HNS RoCE Bonding: " fmt, ##__VA_ARGS__)
enum {
BOND_MODE_1,
BOND_MODE_2_4,
};
enum hns_roce_bond_hashtype {
BOND_HASH_L2,
BOND_HASH_L34,
BOND_HASH_L23,
};
enum bond_support_type {
BOND_NOT_SUPPORT,
/*
* bond_grp already exists, but in the current
* conditions it's no longer supported
*/
BOND_EXISTING_NOT_SUPPORT,
BOND_SUPPORT,
};
enum hns_roce_bond_state {
HNS_ROCE_BOND_NOT_ATTACHED,
HNS_ROCE_BOND_NOT_BONDED,
HNS_ROCE_BOND_IS_BONDED,
HNS_ROCE_BOND_SLAVE_CHANGE_NUM,
HNS_ROCE_BOND_SLAVE_CHANGESTATE,
};
enum hns_roce_bond_cmd_type {
HNS_ROCE_SET_BOND,
HNS_ROCE_CHANGE_BOND,
HNS_ROCE_CLEAR_BOND,
};
struct hns_roce_func_info {
struct net_device *net_dev;
struct hnae3_handle *handle;
};
struct hns_roce_bond_group {
struct net_device *upper_dev;
struct hns_roce_dev *main_hr_dev;
u8 active_slave_num;
u32 slave_map;
u32 active_slave_map;
u8 bond_id;
u8 bus_num;
struct hns_roce_func_info bond_func_info[ROCE_BOND_FUNC_MAX];
bool bond_ready;
enum hns_roce_bond_state bond_state;
enum netdev_lag_tx_type tx_type;
enum netdev_lag_hash hash_type;
struct mutex bond_mutex;
struct notifier_block bond_nb;
struct delayed_work bond_work;
};
struct hns_roce_die_info {
u8 bond_id_mask;
struct hns_roce_bond_group *bgrps[ROCE_BOND_NUM_MAX];
struct mutex die_mutex;
u8 suspend_cnt;
};
struct hns_roce_bond_group *hns_roce_get_bond_grp(struct net_device *net_dev,
u8 bus_num);
int hns_roce_alloc_bond_grp(struct hns_roce_dev *hr_dev);
void hns_roce_dealloc_bond_grp(void);
void hns_roce_cleanup_bond(struct hns_roce_bond_group *bond_grp);
bool hns_roce_bond_is_active(struct hns_roce_dev *hr_dev);
int hns_roce_bond_init(struct hns_roce_dev *hr_dev);
void hns_roce_bond_suspend(struct hnae3_handle *handle);
void hns_roce_bond_resume(struct hnae3_handle *handle);
#endif
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