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net: expose devlink port over rtnetlink

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Expose devlink port handle related to netdev over rtnetlink. Introduce a
new nested IFLA attribute to carry the info. Call into devlink code to
fill-up the nest with existing devlink attributes that are used over
devlink netlink.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jiri Pirko
2022-11-02 17:02:11 +01:00
committed by Jakub Kicinski
parent 77df1db80d
commit dca56c3038
4 changed files with 73 additions and 0 deletions
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14
include/net/devlink.h
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@@ -1873,6 +1873,9 @@ int devlink_compat_phys_port_name_get(struct net_device *dev,
int devlink_compat_switch_id_get(struct net_device *dev,
struct netdev_phys_item_id *ppid);
int devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port);
size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port);
#else
static inline struct devlink *devlink_try_get(struct devlink *devlink)
@@ -1909,6 +1912,17 @@ devlink_compat_switch_id_get(struct net_device *dev,
return -EOPNOTSUPP;
}
static inline int
devlink_nl_port_handle_fill(struct sk_buff *msg, struct devlink_port *devlink_port)
{
return 0;
}
static inline size_t devlink_nl_port_handle_size(struct devlink_port *devlink_port)
{
return 0;
}
#endif
#endif /* _NET_DEVLINK_H_ */