blob: 50e2a80ea28ff496daf775dd9624934641dd2ea5 [file] [log] [blame]
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
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
Users: The first user of this interface will be the fcoeadm application,
which is commonly packaged in the fcoe-utils package.