new file mode 100755
@@ -0,0 +1,186 @@
+#!/bin/bash
+# SPDX-License-Identifier: GPL-2.0
+
+ALL_TESTS="
+ autoneg
+ autoneg_force_mode
+"
+
+NUM_NETIFS=2
+: ${TIMEOUT:=30000} # ms
+source lib.sh
+source ethtool_lib.sh
+
+setup_prepare()
+{
+ swp1=${NETIFS[p1]}
+ swp2=${NETIFS[p2]}
+
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+
+ busywait "$TIMEOUT" wait_for_port_up ethtool $swp2
+ check_err $? "ports did not come up"
+
+ local chosen_lanes=$(ethtool $swp1 | grep 'Lanes:')
+ chosen_lanes=${chosen_lanes#*"Lanes: "}
+ if [[ $chosen_lanes == "Unknown!" ]]; then
+ log_test "SKIP: driver does not support lanes setting"
+ exit 1
+ fi
+
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+}
+
+check_lanes()
+{
+ local dev=$1; shift
+ local lanes=$1; shift
+ local max_speed=$1; shift
+ local chosen_lanes
+
+ chosen_lanes=$(ethtool $dev | grep 'Lanes:')
+ chosen_lanes=${chosen_lanes#*"Lanes: "}
+
+ ((chosen_lanes == lanes))
+ check_err $? "swp1 advertise $max_speed and $lanes, devs sync to $chosen_lanes"
+}
+
+check_unsupported_lanes()
+{
+ local dev=$1; shift
+ local max_speed=$1; shift
+ local max_lanes=$1; shift
+ local autoneg=$1; shift
+ local autoneg_str=""
+
+ local unsupported_lanes=$((max_lanes *= 2))
+
+ if [[ $autoneg -eq 0 ]]; then
+ autoneg_str="autoneg off"
+ fi
+
+ ethtool -s $swp1 speed $max_speed lanes $unsupported_lanes $autoneg_str &> /dev/null
+ check_fail $? "Unsuccessful $unsupported_lanes lanes setting was expected"
+}
+
+max_speed_and_lanes_get()
+{
+ local dev=$1; shift
+ local arr=("$@")
+ local max_lanes
+ local max_speed
+ local -a lanes_arr
+ local -a speeds_arr
+ local -a max_values
+
+ for ((i=0; i<${#arr[@]}; i+=2)); do
+ speeds_arr+=("${arr[$i]}")
+ lanes_arr+=("${arr[i+1]}")
+ done
+
+ max_values+=($(get_max "${speeds_arr[@]}"))
+ max_values+=($(get_max "${lanes_arr[@]}"))
+
+ echo ${max_values[@]}
+}
+
+search_linkmode()
+{
+ local speed=$1; shift
+ local lanes=$1; shift
+ local arr=("$@")
+
+ for ((i=0; i<${#arr[@]}; i+=2)); do
+ if [[ $speed -eq ${arr[$i]} && $lanes -eq ${arr[i+1]} ]]; then
+ return 1
+ fi
+ done
+ return 0
+}
+
+autoneg()
+{
+ RET=0
+
+ local lanes
+ local max_speed
+ local max_lanes
+
+ local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1))
+ local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}"))
+ max_speed=${max_values[0]}
+ max_lanes=${max_values[1]}
+
+ lanes=$max_lanes
+
+ while [[ $lanes -ge 1 ]]; do
+ search_linkmode $max_speed $lanes "${linkmodes_params[@]}"
+ if [[ $? -eq 1 ]]; then
+ ethtool_set $swp1 speed $max_speed lanes $lanes
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+ busywait "$TIMEOUT" wait_for_port_up ethtool $swp2
+ check_err $? "ports did not come up"
+
+ check_lanes $swp1 $lanes $max_speed
+ log_test "$lanes lanes is autonegotiated"
+ fi
+ let $((lanes /= 2))
+ done
+
+ check_unsupported_lanes $swp1 $max_speed $max_lanes 1
+ log_test "Lanes number larger than max_width is not set"
+
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+}
+
+autoneg_force_mode()
+{
+ RET=0
+
+ local lanes
+ local max_speed
+ local max_lanes
+
+ local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1))
+ local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}"))
+ max_speed=${max_values[0]}
+ max_lanes=${max_values[1]}
+
+ lanes=$max_lanes
+
+ while [[ $lanes -ge 1 ]]; do
+ search_linkmode $max_speed $lanes "${linkmodes_params[@]}"
+ if [[ $? -eq 1 ]]; then
+ ethtool_set $swp1 speed $max_speed lanes $lanes autoneg off
+ ethtool_set $swp2 speed $max_speed lanes $lanes autoneg off
+ ip link set dev $swp1 up
+ ip link set dev $swp2 up
+ busywait "$TIMEOUT" wait_for_port_up ethtool $swp2
+ check_err $? "ports did not come up"
+
+ check_lanes $swp1 $lanes $max_speed
+ log_test "Autoneg off, $lanes lanes detected during force mode"
+ fi
+ let $((lanes /= 2))
+ done
+
+ check_unsupported_lanes $swp1 $max_speed $max_lanes 0
+ log_test "Lanes number larger than max width is not set"
+
+ ip link set dev $swp2 down
+ ip link set dev $swp1 down
+
+ ethtool -s $swp2 autoneg on
+ ethtool -s $swp1 autoneg on
+}
+
+check_ethtool_lanes_support
+setup_prepare
+
+tests_run
+
+exit $EXIT_STATUS
@@ -22,6 +22,40 @@ ethtool_set()
check_err $out "error in configuration. $cmd"
}
+dev_linkmodes_params_get()
+{
+ local dev=$1; shift
+ local adver=$1; shift
+ local -a linkmodes_params
+ local param_count
+ local arr
+
+ if (($adver)); then
+ mode="Advertised link modes"
+ else
+ mode="Supported link modes"
+ fi
+
+ local -a dev_linkmodes=($(dev_speeds_get $dev 1 $adver))
+ for ((i=0; i<${#dev_linkmodes[@]}; i++)); do
+ linkmodes_params[$i]=$(echo -e "${dev_linkmodes[$i]}" | \
+ # Replaces all non numbers with spaces
+ sed -e 's/[^0-9]/ /g' | \
+ # Squeeze spaces in sequence to 1 space
+ tr -s ' ')
+ # Count how many numbers were found in the linkmode
+ param_count=$(echo "${linkmodes_params[$i]}" | wc -w)
+ if [[ $param_count -eq 1 ]]; then
+ linkmodes_params[$i]="${linkmodes_params[$i]} 1"
+ elif [[ $param_count -ge 3 ]]; then
+ arr=(${linkmodes_params[$i]})
+ # Take only first two params
+ linkmodes_params[$i]=$(echo "${arr[@]:0:2}")
+ fi
+ done
+ echo ${linkmodes_params[@]}
+}
+
dev_speeds_get()
{
local dev=$1; shift
@@ -69,6 +69,15 @@ check_tc_action_hw_stats_support()
fi
}
+check_ethtool_lanes_support()
+{
+ ethtool --help 2>&1| grep lanes &> /dev/null
+ if [[ $? -ne 0 ]]; then
+ echo "SKIP: ethtool too old; it is missing lanes support"
+ exit 1
+ fi
+}
+
if [[ "$(id -u)" -ne 0 ]]; then
echo "SKIP: need root privileges"
exit 0
@@ -263,6 +272,20 @@ not()
[[ $? != 0 ]]
}
+get_max()
+{
+ local arr=("$@")
+
+ max=${arr[0]}
+ for cur in ${arr[@]}; do
+ if [[ $cur -gt $max ]]; then
+ max=$cur
+ fi
+ done
+
+ echo $max
+}
+
grep_bridge_fdb()
{
local addr=$1; shift
@@ -279,6 +302,11 @@ grep_bridge_fdb()
$@ | grep $addr | grep $flag "$word"
}
+wait_for_port_up()
+{
+ "$@" | grep -q "Link detected: yes"
+}
+
wait_for_offload()
{
"$@" | grep -q offload