From db24a9044ee191c397dcd1c6574f56d67d7c8df5 Mon Sep 17 00:00:00 2001
From: David Ahern <dsahern@gmail.com>
Date: Tue, 17 Mar 2015 20:23:15 -0600
Subject: net: add support for phys_port_name
Similar to port id allow netdevices to specify port names and export
the name via sysfs. Drivers can implement the netdevice operation to
assist udev in having sane default names for the devices using the
rule:
$ cat /etc/udev/rules.d/80-net-setup-link.rules
SUBSYSTEM=="net", ACTION=="add", ATTR{phys_port_name}!="",
NAME="$attr{phys_port_name}"
Use of phys_name versus phys_id was suggested-by Jiri Pirko.
Signed-off-by: David Ahern <dsahern@gmail.com>
Acked-by: Jiri Pirko <jiri@resnulli.us>
Acked-by: Scott Feldman <sfeldma@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
net/core/dev.c | 18 ++++++++++++++++++
1 file changed, 18 insertions(+)
(limited to 'net/core/dev.c')
diff --git a/net/core/dev.c b/net/core/dev.c
index 39fe369b46ad..a1f24151db5b 100644
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -5911,6 +5911,24 @@ int dev_get_phys_port_id(struct net_device *dev,
}
EXPORT_SYMBOL(dev_get_phys_port_id);
+/**
+ * dev_get_phys_port_name - Get device physical port name
+ * @dev: device
+ * @name: port name
+ *
+ * Get device physical port name
+ */
+int dev_get_phys_port_name(struct net_device *dev,
+ char *name, size_t len)
+{
+ const struct net_device_ops *ops = dev->netdev_ops;
+
+ if (!ops->ndo_get_phys_port_name)
+ return -EOPNOTSUPP;
+ return ops->ndo_get_phys_port_name(dev, name, len);
+}
+EXPORT_SYMBOL(dev_get_phys_port_name);
+
/**
* dev_new_index - allocate an ifindex
* @net: the applicable net namespace
--
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