meta-ampere: Set BMC MAC Address from FRU inventory

Support to get BMC MAC address from FRU over the FRU inventory
information (/xyz/openbmc_project/inventory/system/chassis/motherboard)
and update to the eth0 Ethernet interface and set the eth1addr u-boot
variable.

Tested:
1. Boot to u-boot, clear the eth1addr variable, save and reboot.
2. Boot to Linux:
 - Check if the eth0 interface uses the MAC address in FRU.
    root@mtjade:~# ip addr show dev eth0
    2: eth0: <BROADCAST,MULTICAST,UP,LOWER_UP> mtu 1500 qdisc pfifo_fast qlen 1000
        link/ether 70:e2:84:86:76:ba brd ff:ff:ff:ff:ff:ff
 - Check if the eth1addr u-boot variable uses the MAC address in FRU
    root@mtjade:~# fw_printenv eth1addr
    eth1addr=70:E2:84:86:76:BA

Signed-off-by: Chanh Nguyen <chanh@os.amperecomputing.com>
Signed-off-by: Thang Q. Nguyen <thang@os.amperecomputing.com>
Change-Id: Ifb7eefbb17257545d026005f859d37ef562289b7

4 files changed, 82 insertions, 0 deletions

diff --git a/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update.bb b/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update.bb
new file mode 100644
index 000000000..3e18ad71e
--- /dev/null
+++ b/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update.bb
@@ -0,0 +1,26 @@
+SUMMARY = "Ampere Computing LLC Update MAC Address from FRU Inventory Information"
+DESCRIPTION = "Update MAC Address from FRU Inventory Information for Ampere systems"
+PR = "r1"
+
+LICENSE = "Apache-2.0"
+
+LIC_FILES_CHKSUM = "file://${COMMON_LICENSE_DIR}/Apache-2.0;md5=89aea4e17d99a7cacdbeed46a0096b10"
+
+inherit systemd
+inherit obmc-phosphor-systemd
+
+DEPENDS = "systemd"
+RDEPENDS_${PN} = "bash"
+
+FILESEXTRAPATHS_append := "${THISDIR}/${PN}:"
+
+SRC_URI += " \
+            file://ampere_update_mac.sh \
+           "
+
+SYSTEMD_SERVICE_${PN} = "ampere_update_mac.service"
+
+do_install_append() {
+    install -d ${D}/${sbindir}
+    install -m 755 ${WORKDIR}/ampere_update_mac.sh ${D}/${sbindir}
+}
diff --git a/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update/ampere_update_mac.service b/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update/ampere_update_mac.service
new file mode 100644
index 000000000..86f7a0346
--- /dev/null
+++ b/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update/ampere_update_mac.service
@@ -0,0 +1,12 @@
+[Unit]
+Description=Updating MAC Address Service From FRU inventory
+After=xyz.openbmc_project.Inventory.Manager.service
+
+[Service]
+ExecStart=/usr/sbin/ampere_update_mac.sh
+SyslogIdentifier=ampere_update_mac.sh
+Type=oneshot
+RemainAfterExit=yes
+
+[Install]
+WantedBy={SYSTEMD_DEFAULT_TARGET}
diff --git a/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update/ampere_update_mac.sh b/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update/ampere_update_mac.sh
new file mode 100644
index 000000000..5dbdde771
--- /dev/null
+++ b/meta-ampere/meta-common/recipes-ac01/mac/ampere-mac-update/ampere_update_mac.sh
@@ -0,0 +1,43 @@
+#!/bin/bash
+#
+# This script is used to get the MAC Address from FRU Inventory information
+
+ETHERNET_INTERFACE="eth0"
+ENV_ETH="eth1addr"
+ENV_MAC_ADDR=`fw_printenv`
+
+# Check if BMC MAC address is exported
+if [[ $ENV_MAC_ADDR =~ $ENV_ETH ]]; then
+    echo "WARNING: BMC MAC address already exist!"
+    exit 0
+fi
+
+# Read FRU Board Custom Field 1 to get the MAC address
+CUSTOM_FIELD_1=`busctl get-property xyz.openbmc_project.Inventory.Manager /xyz/openbmc_project/inventory/system/chassis/motherboard xyz.openbmc_project.Inventory.Item.NetworkInterface MACAddress`
+MAC_ADDR=`echo $CUSTOM_FIELD_1 | cut -d "\"" -f 2`
+
+# Check if BMC MAC address is exported
+if [ -z "${MAC_ADDR}" ]; then
+    echo "ERROR: No BMC MAC address is detected from FRU Inventory information!"
+    # Return 1 so that systemd knows the service failed to start
+    exit 1
+fi
+
+# Request to update the MAC address
+fw_setenv ${ENV_ETH} ${MAC_ADDR}
+
+if [[ $? -ne 0 ]]; then
+   echo "ERROR: Fail to set MAC address to ${ENV_ETH}"
+   exit 1
+fi
+
+# Request to restart the service
+ifconfig ${ETHERNET_INTERFACE} down
+ifconfig ${ETHERNET_INTERFACE} hw ether ${MAC_ADDR}
+if [[ $? -ne 0 ]]; then
+   echo "ERROR: Can not update MAC ADDR to ${ETHERNET_INTERFACE}"
+   exit 1
+fi
+ifconfig ${ETHERNET_INTERFACE} up
+
+echo "Successfully update the MAC address ${MAC_ADDR} to ${ENV_ETH} and ${ETHERNET_INTERFACE}"
diff --git a/meta-ampere/meta-jade/conf/machine/mtjade.conf b/meta-ampere/meta-jade/conf/machine/mtjade.conf
index 218018953..ec6e27f17 100644
--- a/meta-ampere/meta-jade/conf/machine/mtjade.conf
+++ b/meta-ampere/meta-jade/conf/machine/mtjade.conf
@@ -18,6 +18,7 @@ VOLATILE_LOG_DIR = "no"
 OBMC_IMAGE_EXTRA_INSTALL_append = "\
                                    ampere-usbnet \
                                    ampere-flash-utils \
+                                   ampere-mac-update \
                                   "
 
 PREFERRED_PROVIDER_virtual/obmc-chassis-mgmt = "packagegroup-ampere-apps"