path: root/Documentation/ABI/testing/sysfs-bus-fcoe
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authorAnton Arapov <>2012-08-07 11:21:50 +0200
committerAnton Arapov <>2012-08-07 12:52:25 +0200
commit1d44b6f3fcf6058fb7c960b7558766967e8028f7 (patch)
tree53d88547c973ba048d233091a3f91f3173ad01df /Documentation/ABI/testing/sysfs-bus-fcoe
parentd91eda5d7b0383e6a0c83e0146ff141ff3b1355b (diff)
fedora kernel: 222b075b3ff0d9e88aa9353e3c80667756ed7361v3.5.0-4
Signed-off-by: Anton Arapov <>
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+What: /sys/bus/fcoe/ctlr_X
+Date: March 2012
+KernelVersion: TBD
+Contact: Robert Love <>,
+Description: 'FCoE Controller' instances on the fcoe bus
+ fcf_dev_loss_tmo: Device loss timeout peroid (see below). Changing
+ this value will change the dev_loss_tmo for all
+ FCFs discovered by this controller.
+ lesb_link_fail: Link Error Status Block (LESB) link failure count.
+ lesb_vlink_fail: Link Error Status Block (LESB) virtual link
+ failure count.
+ lesb_miss_fka: Link Error Status Block (LESB) missed FCoE
+ Initialization Protocol (FIP) Keep-Alives (FKA).
+ lesb_symb_err: Link Error Status Block (LESB) symbolic error count.
+ lesb_err_block: Link Error Status Block (LESB) block error count.
+ lesb_fcs_error: Link Error Status Block (LESB) Fibre Channel
+ Serivces error count.
+Notes: ctlr_X (global increment starting at 0)
+What: /sys/bus/fcoe/fcf_X
+Date: March 2012
+KernelVersion: TBD
+Contact: Robert Love <>,
+Description: 'FCoE FCF' instances on the fcoe bus. A FCF is a Fibre Channel
+ Forwarder, which is a FCoE switch that can accept FCoE
+ (Ethernet) packets, unpack them, and forward the embedded
+ Fibre Channel frames into a FC fabric. It can also take
+ outbound FC frames and pack them in Ethernet packets to
+ be sent to their destination on the Ethernet segment.
+ fabric_name: Identifies the fabric that the FCF services.
+ switch_name: Identifies the FCF.
+ priority: The switch's priority amongst other FCFs on the same
+ fabric.
+ selected: 1 indicates that the switch has been selected for use;
+ 0 indicates that the swich will not be used.
+ fc_map: The Fibre Channel MAP
+ vfid: The Virtual Fabric ID
+ mac: The FCF's MAC address
+ fka_peroid: The FIP Keep-Alive peroid
+ fabric_state: The internal kernel state
+ "Unknown" - Initialization value
+ "Disconnected" - No link to the FCF/fabric
+ "Connected" - Host is connected to the FCF
+ "Deleted" - FCF is being removed from the system
+ dev_loss_tmo: The device loss timeout peroid for this FCF.
+Notes: A device loss infrastructre similar to the FC Transport's
+ is present in fcoe_sysfs. It is nice to have so that a
+ link flapping adapter doesn't continually advance the count
+ used to identify the discovered FCF. FCFs will exist in a
+ "Disconnected" state until either the timer expires and the
+ FCF becomes "Deleted" or the FCF is rediscovered and becomes
+ "Connected."
+Users: The first user of this interface will be the fcoeadm application,
+ which is commonly packaged in the fcoe-utils package.