diff options
author | Lotus Xu <xuxiaohan@bytedance.com> | 2020-10-27 10:00:31 +0300 |
---|---|---|
committer | Andrew Geissler <geissonator@yahoo.com> | 2020-12-31 19:41:08 +0300 |
commit | 58c4886c6077d6b1e70be7ae38b25537963ae781 (patch) | |
tree | f69e39d1754356a0107cf2007ca1be3eed0a3703 /meta-bytedance | |
parent | bad8d82c5c28a2dcda255807ac0f617ba7ab7a97 (diff) | |
download | openbmc-58c4886c6077d6b1e70be7ae38b25537963ae781.tar.xz |
bytedance: g220a:read eeprom mac addr
read a byte at one time eg:
for the first byte
i2cset -y 1 0x50 0x00 0x00
i2cget -y 1 0x50
(From meta-bytedance rev: 6389a4f03a518e49241d13843cf005f4a85d7cc8)
Tested: Verify the eeprom mac addr can be read
use `fw_printenv`,`ip a` can read device
mac addr
Signed-off-by: Lotus Xu <xuxiaohan@bytedance.com>
Change-Id: I5fbf28e5bb3bb2ccc2a074388f4166e35da48afc
Signed-off-by: Andrew Geissler <geissonator@yahoo.com>
Diffstat (limited to 'meta-bytedance')
4 files changed, 166 insertions, 0 deletions
diff --git a/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr.bb b/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr.bb new file mode 100644 index 000000000..130187dd8 --- /dev/null +++ b/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr.bb @@ -0,0 +1,24 @@ +SUMMARY = "Enforce static MAC addresses" +DESCRIPTION = "Set a priority on MAC addresses to run with: \ + factory-specified > u-boot-specified > random" + +FILESEXTRAPATHS_prepend := "${THISDIR}/${PN}:" + +PR = "r1" +LICENSE = "Apache-2.0" +LIC_FILES_CHKSUM = "file://${COREBASE}/meta/files/common-licenses/Apache-2.0;md5=89aea4e17d99a7cacdbeed46a0096b10" + +inherit allarch +SRC_URI = "\ + file://mac-check \ + file://${PN}.service \ + " + +inherit obmc-phosphor-systemd + +SYSTEMD_SERVICE_${PN} += "${PN}.service" + +do_install() { + install -d ${D}${bindir} + install -m 0755 ${WORKDIR}/mac-check ${D}${bindir} +} diff --git a/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr/mac-check b/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr/mac-check new file mode 100644 index 000000000..258000762 --- /dev/null +++ b/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr/mac-check @@ -0,0 +1,130 @@ +#!/bin/sh +# Copyright 2018 Intel Corporation +# +# Licensed under the Apache License, Version 2.0 (the "License"); +# you may not use this file except in compliance with the License. +# You may obtain a copy of the License at +# +# http://www.apache.org/licenses/LICENSE-2.0 +# +# Unless required by applicable law or agreed to in writing, software +# distributed under the License is distributed on an "AS IS" BASIS, +# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. +# See the License for the specific language governing permissions and +# limitations under the License. + +SOFS_MNT=/var/sofs +SOFS_MACDIR=${SOFS_MNT}/factory-settings/network/mac + +read_hw_mac() { + local iface="$1" + cat /sys/class/net/"$iface"/address 2>/dev/null +} + +set_hw_mac() { + local iface="$1" + local mac="$2" + ip link show dev "$iface" | grep -q "${iface}:.*\<UP\>" 2>/dev/null + local up=$? + [[ $up -eq 0 ]] && ip link set dev "$iface" down + ip link set dev "$iface" address "$mac" + [[ $up -eq 0 ]] && ip link set dev "$iface" up +} + +read_sofs_mac() { + local iface="$1" + cat "${SOFS_MACDIR}/${iface}" 2>/dev/null +} + +read_fw_env_mac() { + local envname="$1" + fw_printenv "$envname" 2>/dev/null | sed "s/^$envname=//" +} + +set_fw_env_mac() { + local envname="$1" + local mac="$2" + fw_setenv "$envname" "$mac" +} +read_eeprom_mac() { + local iface="$1" + a=0 + if [ $iface = "eth1" ];then + a=8 + fi + for ((i=a;i <= ((7+a));i++));do + i2cset -y 1 0x50 0x00 $i + tmp=`i2cget -y 1 0x50` + local mac[$i]=${tmp:2} + local mac_str=$mac_str:${mac[$i]} + done + mac_str=${mac_str:1:17} + echo $mac_str 2>/dev/null +} + +create_macdir() { +if [ -a ${SOFS_MACDIR} ]; then + if [ ! -d ${SOFS_MACDIR} ]; then + rm -rf ${SOFS_MACDIR} + mkdir -p ${SOFS_MACDIR} + fi +else + mkdir -p ${SOFS_MACDIR} +fi +return 0 +} + +mac_check() { + local iface="$1" + local envname="$2" + + # Read the MAC address in use by the NIC + local hw_mac=$(read_hw_mac "$iface") + + # Read the MAC address stored in the non-volatile file provisioned in + # manufacturing. + local sofs_mac=$(read_sofs_mac "$iface") + + local eeprom_mac=$(read_eeprom_mac "$iface") + if [ -n "$eeprom_mac" ] && [ -z "$sofs_mac"]; then + set_hw_mac "$iface" "$eeprom_mac" + set_fw_env_mac "$envname" "$eeprom_mac" + return $? + elif [ -n "$sofs_mac" ] && [ "$hw_mac" != "$sofs_mac" ]; then + # A factory assigned address was found, and it is newly assigned. + # Update the active interface and save the new value to the u-boot + # environment. + set_hw_mac "$iface" "$sofs_mac" + set_fw_env_mac "$envname" "$sofs_mac" + return $? + elif [ -n "$hw_mac" ]; then + # Read the MAC address stored by U-Boot + local fw_env_mac=$(read_fw_env_mac "$envname") + if [ -z "$fw_env_mac" ] || [ "$fw_env_mac" != "$hw_mac" ]; then + set_fw_env_mac "$envname" "$hw_mac" + return $? + fi + else + # Could not identify a MAC address + return 255 + fi + + return 0 +} + +create_macdir + +error=0 +first_error_seen=0 + +while read IFACE UBDEV; do + mac_check "$IFACE" "$UBDEV" + error=$? + if [ $error -ne 0 ] && [ $first_error_seen -eq 0 ]; then + first_error_seen=$error + fi +done <<-END_CONF + eth0 eth1addr + eth1 ethaddr +END_CONF +exit $first_error_seen diff --git a/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr/static-mac-addr.service b/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr/static-mac-addr.service new file mode 100644 index 000000000..86371db11 --- /dev/null +++ b/meta-bytedance/meta-g220a/recipes-network/network/static-mac-addr/static-mac-addr.service @@ -0,0 +1,11 @@ +[Unit] +Description=Enforce Static MAC addr mapping + +[Service] +Type=oneshot +Restart=no +ExecStart=/usr/bin/mac-check + +[Install] +WantedBy=network.target + diff --git a/meta-bytedance/meta-g220a/recipes-phosphor/images/obmc-phosphor-image.bbappend b/meta-bytedance/meta-g220a/recipes-phosphor/images/obmc-phosphor-image.bbappend index 8b7bb9ed3..e38c2721b 100644 --- a/meta-bytedance/meta-g220a/recipes-phosphor/images/obmc-phosphor-image.bbappend +++ b/meta-bytedance/meta-g220a/recipes-phosphor/images/obmc-phosphor-image.bbappend @@ -1,3 +1,4 @@ OBMC_IMAGE_EXTRA_INSTALL_append_g220a = " webui-vue \ me-time-sync \ + static-mac-addr \ " |