svn commit: r329147 - in head/etc: defaults rc.d
Warner Losh
imp at FreeBSD.org
Mon Feb 12 04:45:18 UTC 2018
Author: imp
Date: Mon Feb 12 04:45:17 2018
New Revision: 329147
URL: https://svnweb.freebsd.org/changeset/base/329147
Log:
Add devmatch rc.d integration
Create simple script to load modules on demand based on the device
identifying information.
Sponsored by: Netflix
Added:
head/etc/rc.d/devmatch (contents, props changed)
Modified:
head/etc/defaults/rc.conf
Modified: head/etc/defaults/rc.conf
==============================================================================
--- head/etc/defaults/rc.conf Mon Feb 12 01:17:06 2018 (r329146)
+++ head/etc/defaults/rc.conf Mon Feb 12 04:45:17 2018 (r329147)
@@ -41,6 +41,7 @@ ddb_enable="NO" # Set to YES to load ddb scripts at b
ddb_config="/etc/ddb.conf" # ddb(8) config file.
devd_enable="YES" # Run devd, to trigger programs on device tree changes.
devd_flags="" # Additional flags for devd(8).
+devmatch_enable="NO" # Demand load kernel modules based on device ids.
#kld_list="" # Kernel modules to load after local disks are mounted
kldxref_enable="NO" # Build linker.hints files with kldxref(8).
kldxref_clobber="NO" # Overwrite old linker.hints at boot.
Added: head/etc/rc.d/devmatch
==============================================================================
--- /dev/null 00:00:00 1970 (empty, because file is newly added)
+++ head/etc/rc.d/devmatch Mon Feb 12 04:45:17 2018 (r329147)
@@ -0,0 +1,54 @@
+#!/bin/sh
+
+# Copyright (c) 2018 Warner Losh
+# All rights reserved.
+#
+# 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.
+#
+# $FreeBSD$
+#
+# PROVIDE: devmatch
+# REQUIRE: kldxref
+# KEYWORD: nojail
+
+. /etc/rc.subr
+
+name="devmatch"
+desc="Use devmatch(8) to load kernel modules
+
+start_cmd="${name}_start"
+stop_cmd=':'
+
+devmatch_start()
+{
+ local x
+
+ x=$(devmatch | sort -u)
+
+ [ -n "$x" ] || return
+
+ echo "Autoloading modules"
+ kldload ${x}
+}
+
+load_rc_config $name
+run_rc_command "$1"
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