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net: Add sysfs file for port number

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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: Amir Vadai <amirv@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Amir Vadai 2014-02-25 18:17:50 +02:00 • committed by David S. Miller
parent f2ea0cfd6b
commit 3f85944fe2
2 changed files with 6 additions and 0 deletions
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4
include/linux/netdevice.h
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@ -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 */