diff options
| -rw-r--r-- | include/net/devlink.h | 9 | ||||
| -rw-r--r-- | net/core/devlink.c | 33 |
2 files changed, 42 insertions, 0 deletions
diff --git a/include/net/devlink.h b/include/net/devlink.h index 6eae15cf0f57..9686a1aa4ec9 100644 --- a/include/net/devlink.h +++ b/include/net/devlink.h @@ -378,6 +378,8 @@ void devlink_port_attrs_set(struct devlink_port *devlink_port, enum devlink_port_flavour flavour, u32 port_number, bool split, u32 split_subport_number); +int devlink_port_get_phys_port_name(struct devlink_port *devlink_port, + char *name, size_t len); int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, u32 size, u16 ingress_pools_count, u16 egress_pools_count, u16 ingress_tc_count, @@ -482,6 +484,13 @@ static inline void devlink_port_attrs_set(struct devlink_port *devlink_port, { } +static inline int +devlink_port_get_phys_port_name(struct devlink_port *devlink_port, + char *name, size_t len) +{ + return -EOPNOTSUPP; +} + static inline int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, u32 size, u16 ingress_pools_count, diff --git a/net/core/devlink.c b/net/core/devlink.c index af90d237cbc2..5c8a40e1a01e 100644 --- a/net/core/devlink.c +++ b/net/core/devlink.c @@ -3016,6 +3016,39 @@ void devlink_port_attrs_set(struct devlink_port *devlink_port, } EXPORT_SYMBOL_GPL(devlink_port_attrs_set); +int devlink_port_get_phys_port_name(struct devlink_port *devlink_port, + char *name, size_t len) +{ + struct devlink_port_attrs *attrs = &devlink_port->attrs; + int n = 0; + + if (!attrs->set) + return -EOPNOTSUPP; + + switch (attrs->flavour) { + case DEVLINK_PORT_FLAVOUR_PHYSICAL: + if (!attrs->split) + n = snprintf(name, len, "p%u", attrs->port_number); + else + n = snprintf(name, len, "p%us%u", attrs->port_number, + attrs->split_subport_number); + break; + case DEVLINK_PORT_FLAVOUR_CPU: + case DEVLINK_PORT_FLAVOUR_DSA: + /* As CPU and DSA ports do not have a netdevice associated + * case should not ever happen. + */ + WARN_ON(1); + return -EINVAL; + } + + if (n >= len) + return -EINVAL; + + return 0; +} +EXPORT_SYMBOL_GPL(devlink_port_get_phys_port_name); + int devlink_sb_register(struct devlink *devlink, unsigned int sb_index, u32 size, u16 ingress_pools_count, u16 egress_pools_count, u16 ingress_tc_count, |