xref: /openbmc/linux/include/net/ncsi.h (revision fd0c88b7)
12d283bddSGavin Shan #ifndef __NET_NCSI_H
22d283bddSGavin Shan #define __NET_NCSI_H
32d283bddSGavin Shan 
42d283bddSGavin Shan /*
52d283bddSGavin Shan  * The NCSI device states seen from external. More NCSI device states are
62d283bddSGavin Shan  * only visible internally (in net/ncsi/internal.h). When the NCSI device
72d283bddSGavin Shan  * is registered, it's in ncsi_dev_state_registered state. The state
82d283bddSGavin Shan  * ncsi_dev_state_start is used to drive to choose active package and
92d283bddSGavin Shan  * channel. After that, its state is changed to ncsi_dev_state_functional.
102d283bddSGavin Shan  *
112d283bddSGavin Shan  * The state ncsi_dev_state_stop helps to shut down the currently active
122d283bddSGavin Shan  * package and channel while ncsi_dev_state_config helps to reconfigure
132d283bddSGavin Shan  * them.
142d283bddSGavin Shan  */
152d283bddSGavin Shan enum {
162d283bddSGavin Shan 	ncsi_dev_state_registered	= 0x0000,
172d283bddSGavin Shan 	ncsi_dev_state_functional	= 0x0100,
182d283bddSGavin Shan 	ncsi_dev_state_probe		= 0x0200,
192d283bddSGavin Shan 	ncsi_dev_state_config		= 0x0300,
202d283bddSGavin Shan 	ncsi_dev_state_suspend		= 0x0400,
212d283bddSGavin Shan };
222d283bddSGavin Shan 
232d283bddSGavin Shan struct ncsi_dev {
242d283bddSGavin Shan 	int               state;
252d283bddSGavin Shan 	int		  link_up;
262d283bddSGavin Shan 	struct net_device *dev;
272d283bddSGavin Shan 	void		  (*handler)(struct ncsi_dev *ndev);
282d283bddSGavin Shan };
292d283bddSGavin Shan 
302d283bddSGavin Shan #ifdef CONFIG_NET_NCSI
3121acf630SSamuel Mendoza-Jonas int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid);
3221acf630SSamuel Mendoza-Jonas int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid);
332d283bddSGavin Shan struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
342d283bddSGavin Shan 				   void (*notifier)(struct ncsi_dev *nd));
35e6f44ed6SGavin Shan int ncsi_start_dev(struct ncsi_dev *nd);
36c0cd1ba4SGavin Shan void ncsi_stop_dev(struct ncsi_dev *nd);
372d283bddSGavin Shan void ncsi_unregister_dev(struct ncsi_dev *nd);
382d283bddSGavin Shan #else /* !CONFIG_NET_NCSI */
39fd0c88b7SArnd Bergmann static inline int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
40fd0c88b7SArnd Bergmann {
41fd0c88b7SArnd Bergmann 	return -EINVAL;
42fd0c88b7SArnd Bergmann }
43fd0c88b7SArnd Bergmann 
44fd0c88b7SArnd Bergmann static inline int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
45fd0c88b7SArnd Bergmann {
46fd0c88b7SArnd Bergmann 	return -EINVAL;
47fd0c88b7SArnd Bergmann }
48fd0c88b7SArnd Bergmann 
492d283bddSGavin Shan static inline struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
502d283bddSGavin Shan 					void (*notifier)(struct ncsi_dev *nd))
512d283bddSGavin Shan {
522d283bddSGavin Shan 	return NULL;
532d283bddSGavin Shan }
542d283bddSGavin Shan 
55e6f44ed6SGavin Shan static inline int ncsi_start_dev(struct ncsi_dev *nd)
56e6f44ed6SGavin Shan {
57e6f44ed6SGavin Shan 	return -ENOTTY;
58e6f44ed6SGavin Shan }
59e6f44ed6SGavin Shan 
60c0cd1ba4SGavin Shan static void ncsi_stop_dev(struct ncsi_dev *nd)
61c0cd1ba4SGavin Shan {
62c0cd1ba4SGavin Shan }
63c0cd1ba4SGavin Shan 
642d283bddSGavin Shan static inline void ncsi_unregister_dev(struct ncsi_dev *nd)
652d283bddSGavin Shan {
662d283bddSGavin Shan }
672d283bddSGavin Shan #endif /* CONFIG_NET_NCSI */
682d283bddSGavin Shan 
692d283bddSGavin Shan #endif /* __NET_NCSI_H */
70