1 files changed, 95 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/hns/hns_roce_bond.h b/drivers/infiniband/hw/hns/hns_roce_bond.h
new file mode 100644
index 000000000000..98c295d78ca1
--- /dev/null
+++ b/drivers/infiniband/hw/hns/hns_roce_bond.h
@@ -0,0 +1,95 @@
+/* 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