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authorMD Danish Anwar <danishanwar@ti.com>2025-01-10 13:58:51 +0530
committerPaolo Abeni <pabeni@redhat.com>2025-01-14 12:17:27 +0100
commit9c10dd8eed74de9e8adeb820939f8745cd566d4a (patch)
tree34e681a6ba607a182929e7d674d9b9a5cbba2acc /include/linux
parent04508d20b017326e116c6e8ef953839507c73b6d (diff)
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 <danishanwar@ti.com> Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/if_hsr.h17
1 files changed, 17 insertions, 0 deletions
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_*/