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cxgbe(4): Add a minimal if_cxl module that pulls in the real driver as

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a dependency.  This ensures "ifconfig cxl<n> ..." does the right thing
even when it's run with no driver loaded.

if_cxl.ko is the tiniest module in /boot/kernel.

MFC after:	2 weeks
This commit is contained in:
Navdeep Parhar 2015-02-06 01:10:04 +00:00
parent a23f83b922
commit 85dc477798
3 changed files with 56 additions and 0 deletions
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44
sys/dev/cxgbe/if_cxl.c Normal file
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@ -0,0 +1,44 @@
/*-
* Copyright (c) 2015 Chelsio Communications, Inc.
* All rights reserved.
* Written by: Navdeep Parhar <np@FreeBSD.org>
*
* 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.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/kernel.h>
#include <sys/module.h>
static int
mod_event(module_t mod, int cmd, void *arg)
{
return (0);
}
static moduledata_t if_cxl_mod = {"if_cxl", mod_event};
DECLARE_MODULE(if_cxl, if_cxl_mod, SI_SUB_EXEC, SI_ORDER_ANY);
MODULE_VERSION(if_cxl, 1);
MODULE_DEPEND(if_cxl, cxl, 1, 1, 1);

1
sys/modules/cxgbe/Makefile
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@ -6,6 +6,7 @@ SYSDIR?=${.CURDIR}/../..
.include "${SYSDIR}/conf/kern.opts.mk"
SUBDIR= if_cxgbe
SUBDIR+= if_cxl
SUBDIR+= t4_firmware
SUBDIR+= t5_firmware
SUBDIR+= ${_tom}

11
sys/modules/cxgbe/if_cxl/Makefile Normal file
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@ -0,0 +1,11 @@
#
# $FreeBSD$
#
CXGBE= ${.CURDIR}/../../../dev/cxgbe
.PATH: ${CXGBE}
KMOD= if_cxl
SRCS= if_cxl.c
.include <bsd.kmod.mk>