| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
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| 2 | #ifndef __NET_NCSI_H |
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| 3 | #define __NET_NCSI_H |
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| 4 | |
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| 5 | #include <linux/types.h> |
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| 6 | |
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| 7 | /* |
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| 8 | * The NCSI device states seen from external. More NCSI device states are |
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| 9 | * only visible internally (in net/ncsi/internal.h). When the NCSI device |
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| 10 | * is registered, it's in ncsi_dev_state_registered state. The state |
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| 11 | * ncsi_dev_state_start is used to drive to choose active package and |
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| 12 | * channel. After that, its state is changed to ncsi_dev_state_functional. |
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| 13 | * |
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| 14 | * The state ncsi_dev_state_stop helps to shut down the currently active |
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| 15 | * package and channel while ncsi_dev_state_config helps to reconfigure |
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| 16 | * them. |
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| 17 | */ |
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| 18 | enum { |
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| 19 | ncsi_dev_state_registered = 0x0000, |
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| 20 | ncsi_dev_state_functional = 0x0100, |
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| 21 | ncsi_dev_state_probe = 0x0200, |
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| 22 | ncsi_dev_state_config = 0x0300, |
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| 23 | ncsi_dev_state_suspend = 0x0400, |
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| 24 | }; |
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| 25 | |
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| 26 | struct ncsi_dev { |
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| 27 | int state; |
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| 28 | int link_up; |
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| 29 | struct net_device *dev; |
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| 30 | void (*handler)(struct ncsi_dev *ndev); |
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| 31 | }; |
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| 32 | |
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| 33 | #ifdef CONFIG_NET_NCSI |
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| 34 | int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid); |
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| 35 | int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid); |
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| 36 | struct ncsi_dev *ncsi_register_dev(struct net_device *dev, |
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| 37 | void (*notifier)(struct ncsi_dev *nd)); |
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| 38 | int ncsi_start_dev(struct ncsi_dev *nd); |
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| 39 | void ncsi_stop_dev(struct ncsi_dev *nd); |
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| 40 | void ncsi_unregister_dev(struct ncsi_dev *nd); |
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| 41 | #else /* !CONFIG_NET_NCSI */ |
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| 42 | static inline int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
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| 43 | { |
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| 44 | return -EINVAL; |
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| 45 | } |
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| 46 | |
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| 47 | static inline int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
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| 48 | { |
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| 49 | return -EINVAL; |
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| 50 | } |
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| 51 | |
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| 52 | static inline struct ncsi_dev *ncsi_register_dev(struct net_device *dev, |
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| 53 | void (*notifier)(struct ncsi_dev *nd)) |
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| 54 | { |
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| 55 | return NULL; |
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| 56 | } |
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| 57 | |
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| 58 | static inline int ncsi_start_dev(struct ncsi_dev *nd) |
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| 59 | { |
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| 60 | return -ENOTTY; |
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| 61 | } |
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| 62 | |
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| 63 | static void ncsi_stop_dev(struct ncsi_dev *nd) |
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| 64 | { |
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| 65 | } |
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| 66 | |
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| 67 | static inline void ncsi_unregister_dev(struct ncsi_dev *nd) |
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| 68 | { |
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| 69 | } |
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| 70 | #endif /* CONFIG_NET_NCSI */ |
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| 71 | |
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| 72 | #endif /* __NET_NCSI_H */ |
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| 73 | |
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