Intel 82574L NIC powersaving fix for tiamat hosts

[chef.git] / cookbooks / devices / files / default / fixeep-82574_83.sh

diff --git a/cookbooks/devices/files/default/fixeep-82574_83.sh b/cookbooks/devices/files/default/fixeep-82574_83.sh
new file mode 100755 (executable)
index 0000000..ca1ee44
--- /dev/null
+++ b/cookbooks/devices/files/default/fixeep-82574_83.sh
@@ -0,0 +1,45 @@
+#!/bin/bash
+
+if [ -z "$1" ]; then
+       echo "Usage: $0 \<interface\>"
+       echo "       i.e. $0 eth0"
+       exit 1
+fi
+
+if ! ifconfig $1 > /dev/null; then
+       exit 1
+fi
+
+bdf=$(ethtool -i $1 | grep "bus-info:" | awk '{print $2}')
+dev=$(lspci -s $bdf -x | grep "00: 86 80" | awk '{print "0x"$5$4$3$2}')
+
+case $dev in
+       0x10d38086)
+               echo "$1: is a \"82574L Gigabit Network Connection\""
+               ;;
+       0x10f68086)
+               echo "$1: is a \"82574L Gigabit Network Connection\""
+               ;;
+       0x150c8086)
+               echo "$1: is a \"82583V Gigabit Network Connection\""
+               ;;
+       *)
+               echo "No appropriate hardware found for this fixup"
+               exit 1
+               ;;
+esac
+
+echo "This fixup is applicable to your hardware"
+
+var=$(ethtool -e $1 | grep 0x0010 | awk '{print $16}')
+new=$(echo ${var:0:1}`echo ${var:1} | tr '014589bc' '2367abef'`)
+
+if [ ${var:0:1}${var:1} == $new ]; then
+       echo "Your eeprom is up to date, no changes were made"
+       exit 2
+fi
+
+echo "executing command: ethtool -E $1 magic $dev offset 0x1e value 0x$new"
+ethtool -E $1 magic $dev offset 0x1e value 0x$new
+
+echo "Change made. You *MUST* reboot your machine before changes take effect!"