1/* SPDX-License-Identifier: GPL-2.0-or-later */
 2/*
 3 * Copyright (c) 2014-2015 Hisilicon Limited.
 4 */
 5
 6#ifndef __HNS_ENET_H
 7#define __HNS_ENET_H
 8
 9#include <linux/netdevice.h>
10#include <linux/of_net.h>
11#include <linux/of_mdio.h>
12#include <linux/timer.h>
13#include <linux/workqueue.h>
14
15#include "hnae.h"
16
17#define HNS_DEBUG_OFFSET	6
18#define HNS_SRV_OFFSET		2
19
20enum hns_nic_state {
21	NIC_STATE_TESTING = 0,
22	NIC_STATE_RESETTING,
23	NIC_STATE_REINITING,
24	NIC_STATE_DOWN,
25	NIC_STATE_DISABLED,
26	NIC_STATE_REMOVING,
27	NIC_STATE_SERVICE_INITED,
28	NIC_STATE_SERVICE_SCHED,
29	NIC_STATE2_RESET_REQUESTED,
30	NIC_STATE_MAX
31};
32
33struct hns_nic_ring_data {
34	struct hnae_ring *ring;
35	struct napi_struct napi;
36	cpumask_t mask; /* affinity mask */
37	u32 queue_index;
38	int (*poll_one)(struct hns_nic_ring_data *, int, void *);
39	void (*ex_process)(struct hns_nic_ring_data *, struct sk_buff *);
40	bool (*fini_process)(struct hns_nic_ring_data *);
41};
42
43/* compatible the difference between two versions */
44struct hns_nic_ops {
45	void (*fill_desc)(struct hnae_ring *ring, void *priv,
46			  int size, dma_addr_t dma, int frag_end,
47			  int buf_num, enum hns_desc_type type, int mtu,
48			  bool is_gso);
49	int (*maybe_stop_tx)(struct sk_buff **out_skb,
50			     int *bnum, struct hnae_ring *ring);
51	void (*get_rxd_bnum)(u32 bnum_flag, int *out_bnum);
52};
53
54struct hns_nic_priv {
55	const struct fwnode_handle      *fwnode;
56	u32 enet_ver;
57	u32 port_id;
58	int phy_mode;
59	int phy_led_val;
60	struct net_device *netdev;
61	struct device *dev;
62	struct hnae_handle *ae_handle;
63
64	struct hns_nic_ops ops;
65
66	/* the cb for nic to manage the ring buffer, the first half of the
67	 * array is for tx_ring and vice versa for the second half
68	 */
69	struct hns_nic_ring_data *ring_data;
70
71	/* The most recently read link state */
72	int link;
73	u64 tx_timeout_count;
74
75	unsigned long state;
76
77	struct timer_list service_timer;
78
79	struct work_struct service_task;
80
81	struct notifier_block notifier_block;
82};
83
84#define tx_ring_data(priv, idx) ((priv)->ring_data[idx])
85#define rx_ring_data(priv, idx) \
86	((priv)->ring_data[(priv)->ae_handle->q_num + (idx)])
87
88void hns_ethtool_set_ops(struct net_device *ndev);
89void hns_nic_net_reset(struct net_device *ndev);
90void hns_nic_net_reinit(struct net_device *netdev);
91int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h);
92netdev_tx_t hns_nic_net_xmit_hw(struct net_device *ndev,
93				struct sk_buff *skb,
94				struct hns_nic_ring_data *ring_data);
95
96#endif	/**__HNS_ENET_H */