Kconfig: add nic throttling configuration

Add startup script /etc/init.d/wrs_throttling.sh for setting up throttling Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Kconfig: add nic throttling configuration
Add startup script /etc/init.d/wrs_throttling.sh for setting up throttling Signed-off-by: Adam Wujek <adam.wujek@cern.ch>
151ff499 · Adam Wujek · 96f442db · 151ff499 · 151ff499 · 151ff499
Commit 151ff499 authored Aug 04, 2016 by Adam Wujek 💬
Showing with 94 additions and 0 deletions

Kconfig Kconfig +15 -0

wrs_throttling.sh userspace/rootfs_override/etc/init.d/wrs_throttling.sh +78 -0

S62wrs_throttling.sh userspace/rootfs_override/etc/rcS/S62wrs_throttling.sh +1 -0

No files found.
--- a/Kconfig
+++ b/Kconfig
@@ -754,7 +754,22 @@ config WRSAUXCLK_PPSHIFT
 	  should be re-calibrated. Otherwise, 1-PPS output will be shifted
 	  from the WR timescale by <steps>*150ps.

+endmenu

+menu "NIC throttling configuration"
+config NIC_THROTTLING_ENABLED
+	bool "Enable NIC throttling"
+	default n
+	help
+	  Limit bandwith on NIC
+
+config NIC_THROTTLING_VAL
+	int "NIC throttling value"
+	depends on NIC_THROTTLING_ENABLED
+	default "4000"
+	range 1 65535
+	help
+	  Value to which bandwith should be limited

 endmenu


--- a/userspace/rootfs_override/etc/init.d/wrs_throttling.sh
+++ b/userspace/rootfs_override/etc/init.d/wrs_throttling.sh
+#!/bin/sh
+
+# this script shall be called before enabling the switching
+dotconfig=/wr/etc/dot-config
+
+set -o pipefail
+
+start() {
+    if [ -f $dotconfig ]; then
+	. $dotconfig
+    else
+	echo "$0 unable to start wrs_throttling, unable to source " \
+	      "dot-config ($dotconfig)!"
+	exit 1
+    fi
+
+    WRS_LOG=$CONFIG_WRS_LOG_OTHER
+
+    # if empty turn it to /dev/null
+    if [ -z $WRS_LOG ]; then
+	WRS_LOG="/dev/null";
+    fi
+
+    # if a pathname, use it
+    if echo "$WRS_LOG" | grep / > /dev/null; then
+	eval LOGPIPE=\" \> $WRS_LOG 2\>\&1 \";
+    else
+	# not a pathname: use verbatim
+	eval LOGPIPE=\" 2\>\&1 \| logger -t wr-switch -p $WRS_LOG\"
+    fi
+
+    echo -n "Starting wrs_throttling: "
+    if [ "$CONFIG_NIC_THROTTLING_ENABLED" = "y" ] \
+      && [ ! -z "$CONFIG_NIC_THROTTLING_VAL" ] ; then
+	eval /wr/bin/wrs_throttling -t "$CONFIG_NIC_THROTTLING_VAL" $LOGPIPE
+	ret=$?
+	if [ $ret -eq 0 ]; then
+	    echo "OK"
+	else
+	    echo "Failed"
+	fi
+    else
+	echo "throttling disabled"
+    fi
+
+}
+
+stop() {
+    echo -n "Stopping wrs_throttling: "
+    eval /wr/bin/wrs_throttling -d $LOGPIPE
+    ret=$?
+    if [ $ret -eq 0 ]; then
+	echo "OK"
+    else
+	echo "Failed"
+    fi
+}
+
+restart() {
+    stop
+    start
+}
+
+case "$1" in
+  start)
+	start
+	;;
+  stop)
+	stop
+	;;
+  restart|reload)
+	restart
+	;;
+  *)
+	echo $"Usage: $0 {start|stop|restart}"
+	exit 1
+	;;
+esac
--- a/userspace/rootfs_override/etc/rcS/S62wrs_throttling.sh
+++ b/userspace/rootfs_override/etc/rcS/S62wrs_throttling.sh
+../init.d/wrs_throttling.sh
\ No newline at end of file