1 /*
2  * Copyright (c) 2014-2015 Hisilicon Limited.
3  *
4  * This program is free software; you can redistribute it and/or modify
5  * it under the terms of the GNU General Public License as published by
6  * the Free Software Foundation; either version 2 of the License, or
7  * (at your option) any later version.
8  */
9 
10 #ifndef __HNS_ENET_H
11 #define __HNS_ENET_H
12 
13 #include <linux/netdevice.h>
14 #include <linux/of_net.h>
15 #include <linux/of_mdio.h>
16 #include <linux/timer.h>
17 #include <linux/workqueue.h>
18 
19 #include "hnae.h"
20 
21 enum hns_nic_state {
22 	NIC_STATE_TESTING = 0,
23 	NIC_STATE_RESETTING,
24 	NIC_STATE_REINITING,
25 	NIC_STATE_DOWN,
26 	NIC_STATE_DISABLED,
27 	NIC_STATE_REMOVING,
28 	NIC_STATE_SERVICE_INITED,
29 	NIC_STATE_SERVICE_SCHED,
30 	NIC_STATE2_RESET_REQUESTED,
31 	NIC_STATE_MAX
32 };
33 
34 struct hns_nic_ring_data {
35 	struct hnae_ring *ring;
36 	struct napi_struct napi;
37 	int 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 	void (*fini_process)(struct hns_nic_ring_data *);
41 };
42 
43 struct hns_nic_priv {
44 	const char *ae_name;
45 	u32 enet_ver;
46 	u32 port_id;
47 	int phy_mode;
48 	int phy_led_val;
49 	struct phy_device *phy;
50 	struct net_device *netdev;
51 	struct device *dev;
52 	struct hnae_handle *ae_handle;
53 
54 	/* the cb for nic to manage the ring buffer, the first half of the
55 	 * array is for tx_ring and vice versa for the second half
56 	 */
57 	struct hns_nic_ring_data *ring_data;
58 
59 	/* The most recently read link state */
60 	int link;
61 	u64 tx_timeout_count;
62 
63 	unsigned long state;
64 
65 	struct timer_list service_timer;
66 
67 	struct work_struct service_task;
68 
69 	struct notifier_block notifier_block;
70 };
71 
72 #define tx_ring_data(priv, idx) ((priv)->ring_data[idx])
73 #define rx_ring_data(priv, idx) \
74 	((priv)->ring_data[(priv)->ae_handle->q_num + (idx)])
75 
76 void hns_ethtool_set_ops(struct net_device *ndev);
77 void hns_nic_net_reset(struct net_device *ndev);
78 void hns_nic_net_reinit(struct net_device *netdev);
79 int hns_nic_init_phy(struct net_device *ndev, struct hnae_handle *h);
80 int hns_nic_net_xmit_hw(struct net_device *ndev,
81 			struct sk_buff *skb,
82 			struct hns_nic_ring_data *ring_data);
83 
84 #endif	/**__HNS_ENET_H */
85