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#!/bin/sh
ETHTOOL=/usr/sbin/ethtool
test -x $ETHTOOL || exit 0
[ "$IFACE" != "lo" ] || exit 0
# Find settings with a given prefix and print them as they appeared in
# /etc/network/interfaces, only with the prefix removed.
# This actually prints each name and value on a separate line, but that
# doesn't matter to the shell.
gather_settings () {
set | sed -n "
/^IF_$1[A-Za-z0-9_]*=/ {
h; # hold line
s/^IF_$1//; s/=.*//; s/_/-/g; # get name without prefix
y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/; # lower-case
p;
g; # restore line
s/^[^=]*=//; s/^'\(.*\)'/\1/; # get value
p;
}"
}
# 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 advertise $IF_ETHERNET_AUTONEG" ;;
esac
[ -z "$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" ] || $ETHTOOL --set-ring "$IFACE" $SETTINGS
SETTINGS="$(gather_settings OFFLOAD_)"
[ -z "$SETTINGS" ] || $ETHTOOL --offload "$IFACE" $SETTINGS
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