Manual Pages  — OCS_FC

ocs_fc – Device driver for Emulex Fibre Channel Host Adapters

SYNOPSIS DESCRIPTION HARDWARE UPDATING FIRMWARE BOOT OPTIONS SYSCTL OPTIONS SUPPORT SEE ALSO AUTHORS

The ocs_fc driver provides access to Fibre Channel SCSI devices.

The ocs_fc driver supports initiator and target modes. Support is available for Arbitrated loops, Point-to-Point, and Fabric connections. FC-Tape is highly recommended for connections to tape drives that support it. FC-Tape includes four elements from the T-10 FCP-4 specification:

• Precise Delivery of Commands
• Confirmed Completion of FCP I/O Operations
• Retransmission of Unsuccessfully Transmitted IUs
• Task Retry Identification

Together these features allow for link level error recovery with tape devices. Without link level error recovery, an initiator cannot, for instance, tell whether a tape write command that has timed out resulted in all, part, or none of the data going to the tape drive. FC-Tape is automatically enabled when both the controller and target support it.

The ocs_fc driver supports these Fibre Channel adapters:

Emulex 16/8G FC GEN 5 HBAS
	LPe15004 FC Host Bus Adapters LPe160XX FC Host Bus Adapters
Emulex 32/16G FC GEN 6 HBAS
	LPe3100X FC Host Bus Adapters LPe3200X FC Host Bus Adapters
Emulex 64/32G FC GEN 7 HBAS
	LPe3500X FC Host Bus Adapters

Adapter firmware updates are persistent.

Firmware can be updated by following these steps:

1. Copy this code to a Makefile:

   KMOD=ocsflash
   FIRMWS=imagename.grp:ocsflash
   amp;.include <bsd.kmod.mk>
   

2. Replace imagename with the name of the GRP file.
3. Copy the Makefile and GRP file to a local directory
4. Execute make and copy the generated ocsflash.ko file to /lib/modules
5. sysctl dev.ocs_fc.<N>.fw_upgrade=ocsflash
6. Check kernel messages regarding status of the operation
7. Reboot the machine

Options are controlled by setting values in /boot/device.hints.

They are:

hint.ocs_fc.N.initiator
	Enable initiator functionality. Default 1 (enabled), 0 to disable.
hint.ocs_fc.N.target
	Enable target functionality. Default 1 (enabled), 0 to disable.
hint.ocs_fc.N.topology
	Topology: 0 for Auto, 1 for NPort only, 2 for Loop only.
hint.ocs_fc.N.speed
	Link speed in megabits per second. Possible values include: 0 Auto-speed negotiation (default), 4000 (4GFC), 8000 (8GFC), 16000 (16GFC).

dev.ocs_fc.N.port_state
	Port state (read/write). Valid values are online and offline.
dev.ocs_fc.N.wwpn
	World Wide Port Name (read/write).
dev.ocs_fc.N.wwnn
	World Wide Node Name (read/write).
dev.ocs_fc.N.fwrev
	Firmware revision (read-only).
dev.ocs_fc.N.sn
	Adapter serial number (read-only).
dev.ocs_fc.N.configured_speed
	Configured Port Speed (read/write). Valid values are: 0 Auto-speed negotiation (default), 4000 (4GFC), 8000 (8GFC), 16000 (16GFC).
dev.ocs_fc.N.configured_topology
	Configured Port Topology (read/write). Valid values are: 0-Auto; 1-NPort; 2-Loop.
dev.ocs_fc.N.current_speed
	Current Port Speed (read-only).
dev.ocs_fc.N.current_topology
	Current Port Topology (read-only).

The ocs_fc driver was written by Broadcom.