1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef __NET_NCSI_H
3 #define __NET_NCSI_H
4
5 /*
6 * The NCSI device states seen from external. More NCSI device states are
7 * only visible internally (in net/ncsi/internal.h). When the NCSI device
8 * is registered, it's in ncsi_dev_state_registered state. The state
9 * ncsi_dev_state_start is used to drive to choose active package and
10 * channel. After that, its state is changed to ncsi_dev_state_functional.
11 *
12 * The state ncsi_dev_state_stop helps to shut down the currently active
13 * package and channel while ncsi_dev_state_config helps to reconfigure
14 * them.
15 */
16 enum {
17 ncsi_dev_state_registered = 0x0000,
18 ncsi_dev_state_functional = 0x0100,
19 ncsi_dev_state_probe = 0x0200,
20 ncsi_dev_state_config = 0x0300,
21 ncsi_dev_state_suspend = 0x0400,
22 };
23
24 struct ncsi_dev {
25 int state;
26 int link_up;
27 struct net_device *dev;
28 void (*handler)(struct ncsi_dev *ndev);
29 };
30
31 #ifdef CONFIG_NET_NCSI
32 int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid);
33 int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid);
34 struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
35 void (*notifier)(struct ncsi_dev *nd));
36 int ncsi_start_dev(struct ncsi_dev *nd);
37 void ncsi_stop_dev(struct ncsi_dev *nd);
38 void ncsi_unregister_dev(struct ncsi_dev *nd);
39 #else /* !CONFIG_NET_NCSI */
ncsi_vlan_rx_add_vid(struct net_device * dev,__be16 proto,u16 vid)40 static inline int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
41 {
42 return -EINVAL;
43 }
44
ncsi_vlan_rx_kill_vid(struct net_device * dev,__be16 proto,u16 vid)45 static inline int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
46 {
47 return -EINVAL;
48 }
49
ncsi_register_dev(struct net_device * dev,void (* notifier)(struct ncsi_dev * nd))50 static inline struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
51 void (*notifier)(struct ncsi_dev *nd))
52 {
53 return NULL;
54 }
55
ncsi_start_dev(struct ncsi_dev * nd)56 static inline int ncsi_start_dev(struct ncsi_dev *nd)
57 {
58 return -ENOTTY;
59 }
60
ncsi_stop_dev(struct ncsi_dev * nd)61 static void ncsi_stop_dev(struct ncsi_dev *nd)
62 {
63 }
64
ncsi_unregister_dev(struct ncsi_dev * nd)65 static inline void ncsi_unregister_dev(struct ncsi_dev *nd)
66 {
67 }
68 #endif /* CONFIG_NET_NCSI */
69
70 #endif /* __NET_NCSI_H */
71