LXR linux/include/net/ncsi.h

   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 */
  16enum {
  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
  24struct 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
  32int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid);
  33int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid);
  34struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
  35                                   void (*notifier)(struct ncsi_dev *nd));
  36int ncsi_start_dev(struct ncsi_dev *nd);
  37void ncsi_stop_dev(struct ncsi_dev *nd);
  38void ncsi_unregister_dev(struct ncsi_dev *nd);
  39#else /* !CONFIG_NET_NCSI */
  40static inline int ncsi_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid)
  41{
  42        return -EINVAL;
  43}
  44
  45static inline int ncsi_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid)
  46{
  47        return -EINVAL;
  48}
  49
  50static inline struct ncsi_dev *ncsi_register_dev(struct net_device *dev,
  51                                        void (*notifier)(struct ncsi_dev *nd))
  52{
  53        return NULL;
  54}
  55
  56static inline int ncsi_start_dev(struct ncsi_dev *nd)
  57{
  58        return -ENOTTY;
  59}
  60
  61static void ncsi_stop_dev(struct ncsi_dev *nd)
  62{
  63}
  64
  65static inline void ncsi_unregister_dev(struct ncsi_dev *nd)
  66{
  67}
  68#endif /* CONFIG_NET_NCSI */
  69
  70#endif /* __NET_NCSI_H */
  71