From 615fdc3cba68a8d0392736b7f61bd2ad0baa2956 Mon Sep 17 00:00:00 2001
From: frank <frank@bruni.home.brehm-online.com>
Date: Sun, 15 Jan 2012 23:27:38 +0100
Subject: [PATCH] committing changes in /etc after emerge run

Package changes:
+sys-apps/pciutils-3.1.7
---
 .etckeeper     |  2 ++
 conf.d/pciparm | 28 ++++++++++++++++++
 init.d/pciparm | 80 ++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 110 insertions(+)
 create mode 100644 conf.d/pciparm
 create mode 100755 init.d/pciparm

diff --git a/.etckeeper b/.etckeeper
index 411bccb1..f19d1dc6 100755
--- a/.etckeeper
+++ b/.etckeeper
@@ -42,6 +42,7 @@ maybe chmod 0644 './conf.d/net'
 maybe chmod 0644 './conf.d/network'
 maybe chmod 0644 './conf.d/ntp-client'
 maybe chmod 0644 './conf.d/ntpd'
+maybe chmod 0644 './conf.d/pciparm'
 maybe chmod 0644 './conf.d/pydoc-2.7'
 maybe chmod 0644 './conf.d/pydoc-3.1'
 maybe chmod 0644 './conf.d/rsyncd'
@@ -200,6 +201,7 @@ maybe chmod 0755 './init.d/nscd'
 maybe chmod 0755 './init.d/ntp-client'
 maybe chmod 0755 './init.d/ntpd'
 maybe chmod 0755 './init.d/numlock'
+maybe chmod 0755 './init.d/pciparm'
 maybe chmod 0755 './init.d/procfs'
 maybe chmod 0755 './init.d/pydoc-2.7'
 maybe chmod 0755 './init.d/pydoc-3.1'
diff --git a/conf.d/pciparm b/conf.d/pciparm
new file mode 100644
index 00000000..f036b15a
--- /dev/null
+++ b/conf.d/pciparm
@@ -0,0 +1,28 @@
+# PCI tweaking article:
+# http://www.gentoo.org/doc/en/articles/hardware-stability-p2.xml
+#
+# Apply to all devices:
+# PCIPARM_ALL="...."
+# Cards also can be addressed by vid:pid or by bus:slot.func
+# (see setpci man page relative to -d and -s options)
+# PCIPARM_(BUS|VENDOR)_#="...."
+# Where # is sequentially numbered from zero.
+
+# Examples:
+# "open up" the PCI bus by allowing fairly long bursts
+# for all devices, increasing performance
+# (equivalent to: setpci -v -d *:* latency_timer=b0)
+#PCIPARM_ALL="latency_timer=b0"
+
+# maximize latency timers for network and audio,
+# allowing them to transmit more data per burst,
+# preventing buffer over/under-run conditions
+#PCIPARM_BUS_0="00:04.0 latency_timer=ff"
+#PCIPARM_BUS_1="01:04.0 latency_timer=ff"
+#PCIPARM_VENDOR_0="1057:3410 latency_timer=ff"
+
+# -v : whether to be verbose about changes
+# -D : dry-run, no commit
+# -f : do not warn if the change is already set
+# (see the setpci manpage for more advanced options)
+SETPCI_OPT="-f"
diff --git a/init.d/pciparm b/init.d/pciparm
new file mode 100755
index 00000000..705b647e
--- /dev/null
+++ b/init.d/pciparm
@@ -0,0 +1,80 @@
+#!/sbin/runscript
+# Copyright 1999-2004 Gentoo Foundation
+# Distributed under the terms of the GNU General Public License v2
+# $Header: /var/cvsroot/gentoo-x86/sys-apps/pciutils/files/init.d-pciparm,v 1.3 2008/10/11 02:47:50 robbat2 Exp $
+
+depend() {
+	before bootmisc hdparm
+	after localmount
+}
+
+checkconfig() {
+	if [ ! -f /etc/conf.d/pciparm ]; then
+		ewarn "/etc/conf.d/pciparm does not exist, skipping"
+		return 1
+	fi
+
+	if [ -z "${PCIPARM_ALL}" -a -z "${PCIPARM_BUS_0}" -a  -z "${PCIPARM_VENDOR_0}" ]; then
+		ewarn "None of PCIPARM_ALL, PCIPARM_BUS_* or PCIPARM_VENDOR_* set in /etc/conf.d/pciparm"
+		return 1
+	fi
+}
+
+do_setpci() {
+	#ewarn "do_setpci: /usr/sbin/setpci $SETPCI_OPT $@"
+	SWITCH=$1
+	SPEC_ID=$2
+	shift 2
+	case "$SWITCH" in
+		-d) DESC=vendor ;;
+		-s) DESC=bus ;;
+		*) eerror "Unknown setpci type: $SWITCH" ; return 1 ;;
+	esac
+
+	if [ -z "$SPEC_ID" ]; then
+		eerror "Missing device specifier!"
+		return 1
+	fi
+	if [ -z "$*" ]; then
+		eerror "Missing configuration to set for ($DESC) $SPEC_ID!"
+		return 1
+	fi
+
+	ebegin "Setting PCI params for ($DESC) $SPEC_ID to $@"
+	/usr/sbin/setpci $SETPCI_OPT $SWITCH $SPEC_ID "$@"
+	rc=$?
+	eend $rc
+	return $rc
+}
+
+do_setpci_array() {
+	name=$1
+	shift
+	i=0
+	while true; do
+		eval opt="\$${name}_$i"
+		# End of loop
+		[ -z "${opt}" ] && break
+		# Pass in all other parameters here, in case we want to use multiple
+		# arguments later.
+		do_setpci "$@" $opt #|| return 1
+		i=$(($i+1))
+	done
+}
+
+start() {
+	if get_bootparam "nopciparm" ; then
+		ewarn "Skipping pciparm init as requested in kernel cmdline"
+		return 0
+	fi
+
+	checkconfig || return 1
+	
+	# We do not exit after any errors presently, because it might be a
+	# stability-related fix after a failure.
+	[ -n "$PCIPARM_ALL" ] && \
+		do_setpci -d '*:*' $PCIPARM_ALL #|| return 1
+
+	do_setpci_array PCIPARM_BUS -s #|| return 1
+	do_setpci_array PCIPARM_VENDOR -d #|| return 1
+}
-- 
2.39.5