1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0 3 4lib_dir=$(dirname $0)/../../../net/forwarding 5ethtool_lib_dir=$(dirname $0)/../hw 6 7ALL_TESTS=" 8 autoneg 9 autoneg_force_mode 10" 11 12NUM_NETIFS=2 13: ${TIMEOUT:=30000} # ms 14source $lib_dir/lib.sh 15source $ethtool_lib_dir/ethtool_lib.sh 16 17setup_prepare() 18{ 19 swp1=${NETIFS[p1]} 20 swp2=${NETIFS[p2]} 21 22 ip link set dev $swp1 up 23 ip link set dev $swp2 up 24 25 busywait "$TIMEOUT" wait_for_port_up ethtool $swp2 26 check_err $? "ports did not come up" 27 28 busywait $TIMEOUT sh -c "ethtool $swp1 | grep -q Lanes:" 29 if [[ $? -ne 0 ]]; then 30 log_test "SKIP: driver does not support lanes setting" 31 exit 1 32 fi 33 34 ip link set dev $swp2 down 35 ip link set dev $swp1 down 36} 37 38check_lanes() 39{ 40 local dev=$1; shift 41 local lanes=$1; shift 42 local max_speed=$1; shift 43 local chosen_lanes 44 45 chosen_lanes=$(ethtool $dev | grep 'Lanes:') 46 chosen_lanes=${chosen_lanes#*"Lanes: "} 47 48 ((chosen_lanes == lanes)) 49 check_err $? "swp1 advertise $max_speed and $lanes, devs sync to $chosen_lanes" 50} 51 52check_unsupported_lanes() 53{ 54 local dev=$1; shift 55 local max_speed=$1; shift 56 local max_lanes=$1; shift 57 local autoneg=$1; shift 58 local autoneg_str="" 59 60 local unsupported_lanes=$((max_lanes *= 2)) 61 62 if [[ $autoneg -eq 0 ]]; then 63 autoneg_str="autoneg off" 64 fi 65 66 ethtool -s $swp1 speed $max_speed lanes $unsupported_lanes $autoneg_str &> /dev/null 67 check_fail $? "Unsuccessful $unsupported_lanes lanes setting was expected" 68} 69 70max_speed_and_lanes_get() 71{ 72 local dev=$1; shift 73 local arr=("$@") 74 local max_lanes 75 local max_speed 76 local -a lanes_arr 77 local -a speeds_arr 78 local -a max_values 79 80 for ((i=0; i<${#arr[@]}; i+=2)); do 81 speeds_arr+=("${arr[$i]}") 82 lanes_arr+=("${arr[i+1]}") 83 done 84 85 max_values+=($(get_max "${speeds_arr[@]}")) 86 max_values+=($(get_max "${lanes_arr[@]}")) 87 88 echo ${max_values[@]} 89} 90 91search_linkmode() 92{ 93 local speed=$1; shift 94 local lanes=$1; shift 95 local arr=("$@") 96 97 for ((i=0; i<${#arr[@]}; i+=2)); do 98 if [[ $speed -eq ${arr[$i]} && $lanes -eq ${arr[i+1]} ]]; then 99 return 1 100 fi 101 done 102 return 0 103} 104 105autoneg() 106{ 107 RET=0 108 109 local lanes 110 local max_speed 111 local max_lanes 112 113 local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1)) 114 local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}")) 115 max_speed=${max_values[0]} 116 max_lanes=${max_values[1]} 117 118 lanes=$max_lanes 119 120 while [[ $lanes -ge 1 ]]; do 121 search_linkmode $max_speed $lanes "${linkmodes_params[@]}" 122 if [[ $? -eq 1 ]]; then 123 ethtool_set $swp1 speed $max_speed lanes $lanes 124 ip link set dev $swp1 up 125 ip link set dev $swp2 up 126 127 busywait $TIMEOUT sh -c "ethtool $swp1 | grep -q Lanes:" 128 check_err $? "Lanes parameter is not presented on time" 129 130 check_lanes $swp1 $lanes $max_speed 131 log_test "$lanes lanes is autonegotiated" 132 fi 133 let $((lanes /= 2)) 134 done 135 136 check_unsupported_lanes $swp1 $max_speed $max_lanes 1 137 log_test "Lanes number larger than max width is not set" 138 139 ip link set dev $swp2 down 140 ip link set dev $swp1 down 141} 142 143autoneg_force_mode() 144{ 145 RET=0 146 147 local lanes 148 local max_speed 149 local max_lanes 150 151 local -a linkmodes_params=($(dev_linkmodes_params_get $swp1 1)) 152 local -a max_values=($(max_speed_and_lanes_get $swp1 "${linkmodes_params[@]}")) 153 max_speed=${max_values[0]} 154 max_lanes=${max_values[1]} 155 156 lanes=$max_lanes 157 158 while [[ $lanes -ge 1 ]]; do 159 search_linkmode $max_speed $lanes "${linkmodes_params[@]}" 160 if [[ $? -eq 1 ]]; then 161 ethtool_set $swp1 speed $max_speed lanes $lanes autoneg off 162 ethtool_set $swp2 speed $max_speed lanes $lanes autoneg off 163 ip link set dev $swp1 up 164 ip link set dev $swp2 up 165 166 busywait $TIMEOUT sh -c "ethtool $swp1 | grep -q Lanes:" 167 check_err $? "Lanes parameter is not presented on time" 168 169 check_lanes $swp1 $lanes $max_speed 170 log_test "Autoneg off, $lanes lanes detected during force mode" 171 fi 172 let $((lanes /= 2)) 173 done 174 175 check_unsupported_lanes $swp1 $max_speed $max_lanes 0 176 log_test "Lanes number larger than max width is not set" 177 178 ip link set dev $swp2 down 179 ip link set dev $swp1 down 180 181 ethtool -s $swp2 autoneg on 182 ethtool -s $swp1 autoneg on 183} 184 185check_ethtool_lanes_support 186setup_prepare 187 188tests_run 189 190exit $EXIT_STATUS 191