Documentation/ABI/testing/sysfs-bus-fcoe

Source file repositories/reference/linux-study-clean/Documentation/ABI/testing/sysfs-bus-fcoe

File Facts

System
Linux kernel
Corpus path
Documentation/ABI/testing/sysfs-bus-fcoe
Extension
[no extension]
Size
4702 bytes
Lines
139
Domain
Support Tooling And Documentation
Bucket
Documentation
Inferred role
Support Tooling And Documentation: Documentation
Status
atlas-only

Why This File Exists

Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

Dependency Surface

Detected Declarations

Annotated Snippet

What:		/sys/bus/fcoe/
Date:		August 2012
KernelVersion:	TBD
Contact:	Robert Love <robert.w.love@intel.com>, devel@open-fcoe.org
Description:	The FCoE bus. Attributes in this directory are control interfaces.

Attributes:

	ctlr_create:
		     'FCoE Controller' instance creation interface. Writing an
		     <ifname> to this file will allocate and populate sysfs with a
		     fcoe_ctlr_device (ctlr_X). The user can then configure any
		     per-port settings and finally write to the fcoe_ctlr_device's
		     'start' attribute to begin the kernel's discovery and login
		     process.

	ctlr_destroy:
		       'FCoE Controller' instance removal interface. Writing a
		       fcoe_ctlr_device's sysfs name to this file will log the
		       fcoe_ctlr_device out of the fabric or otherwise connected
		       FCoE devices. It will also free all kernel memory allocated
		       for this fcoe_ctlr_device and any structures associated
		       with it, this includes the scsi_host.

What:		/sys/bus/fcoe/devices/ctlr_X
Date:		March 2012
KernelVersion:	TBD
Contact:	Robert Love <robert.w.love@intel.com>, devel@open-fcoe.org
Description:	'FCoE Controller' instances on the fcoe bus.
		The FCoE Controller now has a three stage creation process.
		1) Write interface name to ctlr_create 2) Configure the FCoE
		Controller (ctlr_X) 3) Enable the FCoE Controller to begin
		discovery and login. The FCoE Controller is destroyed by
		writing its name, i.e. ctlr_X to the ctlr_delete file.

Attributes:

	fcf_dev_loss_tmo:
			  Device loss timeout period (see below). Changing
			  this value will change the dev_loss_tmo for all
			  FCFs discovered by this controller.

	mode:
			  Display or change the FCoE Controller's mode. Possible
			  modes are 'Fabric' and 'VN2VN'. If a FCoE Controller
			  is started in 'Fabric' mode then FIP FCF discovery is
			  initiated and ultimately a fabric login is attempted.
			  If a FCoE Controller is started in 'VN2VN' mode then
			  FIP VN2VN discovery and login is performed. A FCoE
			  Controller only supports one mode at a time.

	enabled:
			  Whether an FCoE controller is enabled or disabled.
			  0 if disabled, 1 if enabled. Writing either 0 or 1
			  to this file will enable or disable the FCoE 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.

Annotation

Implementation Notes