Date: Mon, 12 Feb 2018 04:45:17 +0000 (UTC) From: Warner Losh <imp@FreeBSD.org> To: src-committers@freebsd.org, svn-src-all@freebsd.org, svn-src-head@freebsd.org Subject: svn commit: r329147 - in head/etc: defaults rc.d Message-ID: <201802120445.w1C4jH1c081827@repo.freebsd.org>
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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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