MFC r331766, r331768:

  ------------------------------------------------------------------------
  r331766 | ken | 2018-03-30 09:28:25 -0600 (Fri, 30 Mar 2018) | 25 lines

  Bring in the Broadcom/Emulex Fibre Channel driver, ocs_fc(4).

  The ocs_fc(4) driver supports the following hardware:

  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

  The driver supports target and initiator mode, and also supports FC-Tape.

  Note that the driver only currently works on little endian platforms.  It
  is only included in the module build for amd64 and i386, and in GENERIC
  on amd64 only.

  Submitted by:	Ram Kishore Vegesna <ram.vegesna@broadcom.com>
  Reviewed by:	mav
  Relnotes:	yes
  Sponsored by:	Broadcom
  Differential Revision:	https://reviews.freebsd.org/D11423

  ------------------------------------------------------------------------
  r331768 | cem | 2018-03-30 10:44:54 -0600 (Fri, 30 Mar 2018) | 9 lines

  ocs_fc(4): Fix GCC build (-Wredundant-decls)

  These objects are defined earlier in the same file; an extern declaration
  after definition is redundant.

  Broken in r331766 (introduction of ocs_fc(4)).

  Sponsored by:	Dell EMC Isilon

  ------------------------------------------------------------------------

Differential Revision:	https://reviews.freebsd.org/D11423
Relnotes:	yes

2 files changed, 195 insertions, 0 deletions

diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index 31688ab..4ef49f4 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -402,6 +402,7 @@ MAN=	aac.4 \
 	${_nvram2env.4} \
 	${_nxge.4} \
 	oce.4 \
+	ocs_fc.4\
 	ohci.4 \
 	orm.4 \
 	ow.4 \
diff --git a/share/man/man4/ocs_fc.4 b/share/man/man4/ocs_fc.4
new file mode 100644
index 0000000..a2f13c4
--- /dev/null
+++ b/share/man/man4/ocs_fc.4
@@ -0,0 +1,194 @@
+.\" Copyright (c) 2017 Broadcom. All rights reserved.
+.\" The term "Broadcom" refers to Broadcom Limited and/or its subsidiaries.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions are met:
+.\"
+.\" 1. Redistributions of source code must retain the above copyright notice,
+.\"    this list of conditions and the following disclaimer.
+.\"
+.\" 2. Redistributions in binary form must reproduce the above copyright notice,
+.\"    this list of conditions and the following disclaimer in the documentation
+.\"    and/or other materials provided with the distribution.
+.\"
+.\" 3. Neither the name of the copyright holder nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+.\" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
+.\" LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+.\" CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+.\" SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+.\" INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+.\" CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+.\" ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+.\" POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd March 30, 2018
+.Dt OCS_FC 4
+.Os
+.Sh NAME
+.Nm ocs_fc
+.Nd "Device driver for Emulex Fibre Channel Host Adapters"
+.Sh SYNOPSIS
+To compile this driver into the kernel, add this line to the
+kernel configuration file:
+.Bd -ragged -offset indent
+.Cd "device ocs_fc"
+.Ed
+.Pp
+To load the driver as a module at boot, add this line to
+.Xr loader.conf 5 :
+.Bd -literal -offset indent
+ocs_fc_load="YES"
+.Ed
+.Sh DESCRIPTION
+The
+.Nm
+driver provides access to Fibre Channel SCSI devices.
+.Pp
+The
+.Nm
+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:
+.Bl -bullet -offset indent
+.It
+Precise Delivery of Commands
+.It
+Confirmed Completion of FCP I/O Operations
+.It
+Retransmission of Unsuccessfully Transmitted IUs
+.It
+Task Retry Identification
+.El
+.Pp
+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.
+
+.Sh HARDWARE
+The
+.Nm
+driver supports these Fibre Channel adapters:
+.Bl -tag -width xxxxxx -offset indent
+.It Emulex 16/8G FC GEN 5 HBAS
+.Bd -literal -offset indent
+LPe15004 FC Host Bus Adapters
+LPe160XX FC Host Bus Adapters
+.Ed
+.It Emulex 32/16G FC GEN 6 HBAS
+.Bd -literal -offset indent
+LPe3100X FC Host Bus Adapters
+LPe3200X FC Host Bus Adapters
+.Ed
+.El
+.Sh UPDATING FIRMWARE
+Adapter firmware updates are persistent.
+.Pp
+Firmware can be updated by following these steps:
+.Bl -enum
+.It
+Copy this code to a
+.Pa Makefile :
+.Bd -literal -offset indent
+KMOD=ocsflash
+FIRMWS=imagename.grp:ocsflash
+\&.include <bsd.kmod.mk>
+.Ed
+.It
+Replace
+.Pa imagename
+with the name of the GRP file.
+.It
+Copy the
+.Pa Makefile
+and GRP file to a local directory
+.It
+Execute
+.Cm make
+and copy the generated
+.Pa ocsflash.ko
+file to
+.Pa /lib/modules
+.It
+.Cm sysctl dev.ocs_fc.<N>.fw_upgrade=ocsflash
+.It
+Check kernel messages regarding status of the operation
+.It
+Reboot the machine
+.El
+.Pp
+.Sh BOOT OPTIONS
+Options are controlled by setting values in
+.Pa /boot/device.hints .
+.Pp
+They are:
+.Bl -tag -width indent
+.It Va hint.ocs_fc.N.initiator
+Enable initiator functionality.
+Default 1 (enabled), 0 to disable.
+.It Va hint.ocs_fc.N.target
+Enable target functionality.
+Default 1 (enabled), 0 to disable.
+.It Va hint.ocs_fc.N.topology
+Topology: 0 for Auto, 1 for NPort only, 2 for Loop only.
+.It Va 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).
+.El
+.Sh SYSCTL OPTIONS
+.Bl -tag -width indent
+.It Va dev.ocs_fc.N.port_state
+Port state (read/write).
+Valid values are
+.Li online
+and
+.Li offline .
+.It Va dev.ocs_fc.N.wwpn
+World Wide Port Name (read/write).
+.It Va dev.ocs_fc.N.wwnn
+World Wide Node Name (read/write).
+.It Va dev.ocs_fc.N.fwrev
+Firmware revision (read-only).
+.It Va dev.ocs_fc.N.sn
+Adapter serial number (read-only).
+.It Va 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).
+.It Va dev.ocs_fc.N.configured_topology
+Configured Port Topology (read/write).
+Valid values are:
+0-Auto; 1-NPort; 2-Loop.
+.It Va dev.ocs_fc.N.current_speed
+Current Port Speed (read-only).
+.It Va dev.ocs_fc.N.current_topology
+Current Port Topology (read-only).
+.El
+.Sh SUPPORT
+For general information and support,
+go to the Broadcom website at:
+.Pa http://www.broadcom.com/
+or E-Mail at
+.Pa ocs-driver-team.pdl@broadcom.com.
+.Sh SEE ALSO
+.Xr ifconfig 8
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+driver was written by
+.An Broadcom.