diff options
Diffstat (limited to 'include/net/dsa.h')
-rw-r--r-- | include/net/dsa.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/include/net/dsa.h b/include/net/dsa.h index 6fa418ff1175..343642ca4f63 100644 --- a/include/net/dsa.h +++ b/include/net/dsa.h @@ -86,6 +86,18 @@ struct dsa_device_ops { enum dsa_tag_protocol proto; }; +/* This structure defines the control interfaces that are overlayed by the + * DSA layer on top of the DSA CPU/management net_device instance. This is + * used by the core net_device layer while calling various net_device_ops + * function pointers. + */ +struct dsa_netdevice_ops { + int (*ndo_do_ioctl)(struct net_device *dev, struct ifreq *ifr, + int cmd); + int (*ndo_get_phys_port_name)(struct net_device *dev, char *name, + size_t len); +}; + #define DSA_TAG_DRIVER_ALIAS "dsa_tag-" #define MODULE_ALIAS_DSA_TAG_DRIVER(__proto) \ MODULE_ALIAS(DSA_TAG_DRIVER_ALIAS __stringify(__proto##_VALUE)) @@ -217,6 +229,7 @@ struct dsa_port { /* * Original copy of the master netdev net_device_ops */ + const struct dsa_netdevice_ops *netdev_ops; const struct net_device_ops *orig_ndo_ops; bool setup; @@ -679,6 +692,63 @@ static inline bool dsa_can_decode(const struct sk_buff *skb, return false; } +#if IS_ENABLED(CONFIG_NET_DSA) +static inline int __dsa_netdevice_ops_check(struct net_device *dev) +{ + int err = -EOPNOTSUPP; + + if (!dev->dsa_ptr) + return err; + + if (!dev->dsa_ptr->netdev_ops) + return err; + + return 0; +} + +static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, + int cmd) +{ + const struct dsa_netdevice_ops *ops; + int err; + + err = __dsa_netdevice_ops_check(dev); + if (err) + return err; + + ops = dev->dsa_ptr->netdev_ops; + + return ops->ndo_do_ioctl(dev, ifr, cmd); +} + +static inline int dsa_ndo_get_phys_port_name(struct net_device *dev, + char *name, size_t len) +{ + const struct dsa_netdevice_ops *ops; + int err; + + err = __dsa_netdevice_ops_check(dev); + if (err) + return err; + + ops = dev->dsa_ptr->netdev_ops; + + return ops->ndo_get_phys_port_name(dev, name, len); +} +#else +static inline int dsa_ndo_do_ioctl(struct net_device *dev, struct ifreq *ifr, + int cmd) +{ + return -EOPNOTSUPP; +} + +static inline int dsa_ndo_get_phys_port_name(struct net_device *dev, + char *name, size_t len) +{ + return -EOPNOTSUPP; +} +#endif + void dsa_unregister_switch(struct dsa_switch *ds); int dsa_register_switch(struct dsa_switch *ds); struct dsa_switch *dsa_switch_find(int tree_index, int sw_index); |