forked from Minki/linux
db24a9044e
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>
235 lines
7.3 KiB
Plaintext
235 lines
7.3 KiB
Plaintext
What: /sys/class/net/<iface>/name_assign_type
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Date: July 2014
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KernelVersion: 3.17
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the name assignment type. Possible values are:
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1: enumerated by the kernel, possibly in an unpredictable way
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2: predictably named by the kernel
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3: named by userspace
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4: renamed
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What: /sys/class/net/<iface>/addr_assign_type
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Date: July 2010
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KernelVersion: 3.2
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the address assignment type. Possible values are:
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0: permanent address
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1: randomly generated
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2: stolen from another device
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3: set using dev_set_mac_address
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What: /sys/class/net/<iface>/addr_len
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the hardware address size in bytes.
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Values vary based on the lower-level protocol used by the
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interface (Ethernet, FDDI, ATM, IEEE 802.15.4...). See
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include/uapi/linux/if_*.h for actual values.
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What: /sys/class/net/<iface>/address
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Hardware address currently assigned to this interface.
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Format is a string, e.g: 00:11:22:33:44:55 for an Ethernet MAC
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address.
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What: /sys/class/net/<iface>/broadcast
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Hardware broadcast address for this interface. Format is a
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string, e.g: ff:ff:ff:ff:ff:ff for an Ethernet broadcast MAC
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address.
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What: /sys/class/net/<iface>/carrier
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the current physical link state of the interface.
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Posssible values are:
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0: physical link is down
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1: physical link is up
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Note: some special devices, e.g: bonding and team drivers will
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allow this attribute to be written to force a link state for
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operating correctly and designating another fallback interface.
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What: /sys/class/net/<iface>/dev_id
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Date: April 2008
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KernelVersion: 2.6.26
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the device unique identifier. Format is an hexadecimal
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value. This is used to disambiguate interfaces which might be
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stacked (e.g: VLAN interfaces) but still have the same MAC
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address as their parent device.
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What: /sys/class/net/<iface>/dormant
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: netdev@vger.kernel.org
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Description:
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Indicates whether the interface is in dormant state. Possible
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values are:
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0: interface is not dormant
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1: interface is dormant
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This attribute can be used by supplicant software to signal that
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the device is not usable unless some supplicant-based
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authentication is performed (e.g: 802.1x). 'link_mode' attribute
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will also reflect the dormant state.
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What: /sys/clas/net/<iface>/duplex
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Date: October 2009
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KernelVersion: 2.6.33
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface latest or current duplex value. Possible
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values are:
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half: half duplex
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full: full duplex
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Note: This attribute is only valid for interfaces that implement
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the ethtool get_settings method (mostly Ethernet).
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What: /sys/class/net/<iface>/flags
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface flags as a bitmask in hexadecimal. See
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include/uapi/linux/if.h for a list of all possible values and
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the flags semantics.
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What: /sys/class/net/<iface>/ifalias
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Date: September 2008
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KernelVersion: 2.6.28
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Contact: netdev@vger.kernel.org
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Description:
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Indicates/stores an interface alias name as a string. This can
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be used for system management purposes.
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What: /sys/class/net/<iface>/ifindex
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the system-wide interface unique index identifier as a
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decimal number. This attribute is used for mapping an interface
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identifier to an interface name. It is used throughout the
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networking stack for specifying the interface specific
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requests/events.
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What: /sys/class/net/<iface>/iflink
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the system-wide interface unique index identifier a
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the interface is linked to. Format is decimal. This attribute is
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used to resolve interfaces chaining, linking and stacking.
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Physical interfaces have the same 'ifindex' and 'iflink' values.
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What: /sys/class/net/<iface>/link_mode
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface link mode, as a decimal number. This
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attribute should be used in conjunction with 'dormant' attribute
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to determine the interface usability. Possible values:
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0: default link mode
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1: dormant link mode
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What: /sys/class/net/<iface>/mtu
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface currently configured MTU value, in
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bytes, and in decimal format. Specific values depends on the
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lower-level interface protocol used. Ethernet devices will show
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a 'mtu' attribute value of 1500 unless changed.
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What: /sys/class/net/<iface>/netdev_group
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Date: January 2011
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KernelVersion: 2.6.39
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface network device group, as a decimal
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integer. Default value is 0 which corresponds to the initial
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network devices group. The group can be changed to affect
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routing decisions (see: net/ipv4/fib_rules and
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net/ipv6/fib6_rules.c).
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What: /sys/class/net/<iface>/operstate
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Date: March 2006
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KernelVersion: 2.6.17
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface RFC2863 operational state as a string.
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Possible values are:
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"unknown", "notpresent", "down", "lowerlayerdown", "testing",
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"dormant", "up".
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What: /sys/class/net/<iface>/phys_port_id
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Date: July 2013
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KernelVersion: 3.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface unique physical port identifier within
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the NIC, as a string.
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What: /sys/class/net/<iface>/phys_port_name
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Date: March 2015
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KernelVersion: 4.0
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface physical port name within the NIC,
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as a string.
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What: /sys/class/net/<iface>/speed
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Date: October 2009
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KernelVersion: 2.6.33
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface latest or current speed value. Value is
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an integer representing the link speed in Mbits/sec.
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Note: this attribute is only valid for interfaces that implement
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the ethtool get_settings method (mostly Ethernet ).
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What: /sys/class/net/<iface>/tx_queue_len
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface transmit queue len in number of packets,
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as an integer value. Value depend on the type of interface,
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Ethernet network adapters have a default value of 1000 unless
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configured otherwise
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What: /sys/class/net/<iface>/type
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Date: April 2005
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KernelVersion: 2.6.12
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the interface protocol type as a decimal value. See
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include/uapi/linux/if_arp.h for all possible values.
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What: /sys/class/net/<iface>/phys_switch_id
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Date: November 2014
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KernelVersion: 3.19
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Contact: netdev@vger.kernel.org
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Description:
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Indicates the unique physical switch identifier of a switch this
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port belongs to, as a string.
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