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ethtool
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2009-04-28
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47 lines
#!/bin/sh
ETHTOOL=/usr/sbin/ethtool
test -x $ETHTOOL || exit 0
# Find settings with a given prefix and print them as they appeared in
# /etc/network/interfaces, only with the prefix removed.
gather_settings () {
env | awk -F= "/^IF_$1/ {
sub(\"^IF_$1\", \"\");
gsub(\"_\", \"-\");
print tolower(\$1), \$2
}"
}
# Gather together the mixed bag of settings applied with -s/--change
SETTINGS="\
${IF_LINK_SPEED:+ speed $IF_LINK_SPEED}\
${IF_LINK_DUPLEX:+ duplex $IF_LINK_DUPLEX}\
"
# WOL has an optional pass-key
set -- $IF_ETHERNET_WOL
SETTINGS="$SETTINGS${1:+ wol $1}${2:+ sopass $2}"
# Autonegotiation can be on|off or an advertising mask
case "$IF_ETHERNET_AUTONEG" in
'') ;;
on|off) SETTINGS="$SETTINGS autoneg $IF_ETHERNET_AUTONEG" ;;
*) SETTINGS="$SETTINGS autoneg on $IF_ETHERNET_AUTONEG" ;;
esac
[ -z "$SETTINGS" ] || $ETHTOOL --change "$IFACE" $SETTINGS
SETTINGS="$(gather_settings ETHERNET_PAUSE_)"
[ -z "$SETTINGS" ] || $ETHTOOL --pause "$IFACE" $SETTINGS
SETTINGS="$(gather_settings HARDWARE_IRQ_COALESCE_)"
[ -z "$SETTINGS" ] || $ETHTOOL --coalesce "$IFACE" $SETTINGS
SETTINGS="$(gather_settings HARDWARE_DMA_RING_)"
[ -z "$SETTINGS" ] || $ETHTOOL --ring "$IFACE" $SETTINGS
SETTINGS="$(gather_settings OFFLOAD_)"
[ -z "$SETTINGS" ] || $ETHTOOL --offload "$IFACE" $SETTINGS