From 9c10dd8eed74de9e8adeb820939f8745cd566d4a Mon Sep 17 00:00:00 2001 From: MD Danish Anwar Date: Fri, 10 Jan 2025 13:58:51 +0530 Subject: net: hsr: Create and export hsr_get_port_ndev() Create an API to get the net_device to the slave port of HSR device. The API will take hsr net_device and enum hsr_port_type for which we want the net_device as arguments. This API can be used by client drivers who support HSR and want to get the net_devcie of slave ports from the hsr device. Export this API for the same. This API needs the enum hsr_port_type to be accessible by the drivers using hsr. Move the enum hsr_port_type from net/hsr/hsr_main.h to include/linux/if_hsr.h for the same. Signed-off-by: MD Danish Anwar Signed-off-by: Paolo Abeni --- include/linux/if_hsr.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) (limited to 'include/linux') diff --git a/include/linux/if_hsr.h b/include/linux/if_hsr.h index 0404f5bf4f30..d7941fd88032 100644 --- a/include/linux/if_hsr.h +++ b/include/linux/if_hsr.h @@ -13,6 +13,15 @@ enum hsr_version { PRP_V1, }; +enum hsr_port_type { + HSR_PT_NONE = 0, /* Must be 0, used by framereg */ + HSR_PT_SLAVE_A, + HSR_PT_SLAVE_B, + HSR_PT_INTERLINK, + HSR_PT_MASTER, + HSR_PT_PORTS, /* This must be the last item in the enum */ +}; + /* HSR Tag. * As defined in IEC-62439-3:2010, the HSR tag is really { ethertype = 0x88FB, * path, LSDU_size, sequence Nr }. But we let eth_header() create { h_dest, @@ -32,6 +41,8 @@ struct hsr_tag { #if IS_ENABLED(CONFIG_HSR) extern bool is_hsr_master(struct net_device *dev); extern int hsr_get_version(struct net_device *dev, enum hsr_version *ver); +struct net_device *hsr_get_port_ndev(struct net_device *ndev, + enum hsr_port_type pt); #else static inline bool is_hsr_master(struct net_device *dev) { @@ -42,6 +53,12 @@ static inline int hsr_get_version(struct net_device *dev, { return -EINVAL; } + +static inline struct net_device *hsr_get_port_ndev(struct net_device *ndev, + enum hsr_port_type pt) +{ + return ERR_PTR(-EINVAL); +} #endif /* CONFIG_HSR */ #endif /*_LINUX_IF_HSR_H_*/ -- cgit v1.2.3