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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 | #!/bin/bash # SPDX-License-Identifier: GPL-2.0 lib_dir=$(dirname $0)/../../../net/forwarding ALL_TESTS=" autoneg autoneg_force_mode " NUM_NETIFS=2 : ${TIMEOUT:=30000} # ms source $lib_dir/lib.sh source $lib_dir/ethtool_lib.sh setup_prepare() { swp1=${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 $? "ports did not come up" local lanes_exist=$(ethtool $swp1 | grep 'Lanes:') if [[ -z $lanes_exist ]]; 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 |