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Commit 3f85944f authored by Amir Vadai's avatar Amir Vadai Committed by David S. Miller
Browse files

net: Add sysfs file for port number 



Add a sysfs file to enable user space to query the device
port number used by a netdevice instance. This is needed for
devices that have multiple ports on the same PCI function.

Signed-off-by: default avatarAmir Vadai <amirv@mellanox.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent f2ea0cfd

include/linux/netdevice.h

+4 −0
Original line number Diff line number Diff line
@@ -1279,6 +1279,10 @@ struct net_device { 
						 * that share the same link

						 * layer address

						 */

	unsigned short          dev_port;	/* Used to differentiate

						 * devices that share the same

						 * function

						 */

	spinlock_t		addr_list_lock;

	struct netdev_hw_addr_list	uc;	/* Unicast mac addresses */

	struct netdev_hw_addr_list	mc;	/* Multicast mac addresses */

net/core/net-sysfs.c

+2 −0
Original line number Diff line number Diff line
@@ -104,6 +104,7 @@ static ssize_t netdev_store(struct device *dev, struct device_attribute *attr, 
}



NETDEVICE_SHOW_RO(dev_id, fmt_hex);

NETDEVICE_SHOW_RO(dev_port, fmt_dec);

NETDEVICE_SHOW_RO(addr_assign_type, fmt_dec);

NETDEVICE_SHOW_RO(addr_len, fmt_dec);

NETDEVICE_SHOW_RO(iflink, fmt_dec);
@@ -373,6 +374,7 @@ static struct attribute *net_class_attrs[] = { 
	&dev_attr_netdev_group.attr,

	&dev_attr_type.attr,

	&dev_attr_dev_id.attr,

	&dev_attr_dev_port.attr,

	&dev_attr_iflink.attr,

	&dev_attr_ifindex.attr,

	&dev_attr_addr_assign_type.attr,