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 */ 40 static inline int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) 41 { 42 return -EINVAL; 43 } 44 45 static inline int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) 46 { 47 return -EINVAL; 48 } 49 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 56 static inline int ncsi_start_dev(struct ncsi_dev *nd) 57 { 58 return -ENOTTY; 59 } 60 61 static void ncsi_stop_dev(struct ncsi_dev *nd) 62 { 63 } 64 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