meta-quanta: s6q: Add usb0 network interface

1. Fix the sytle of systemd-conf.bbappend to wrap with 80 characters.
2. Add usb0 network interface.
3. Disable ipv4 link-local address to avoid routing problems.

Tested:
Set the host's network interface to a link-local address and
successfully communicate with the BMC via usb0.

Signed-off-by: Jerry Wan <jerry.wan@quantatw.com>
Change-Id: I9e6a9946a2beb8cf85872abe1919e92052fe46cc
diff --git a/meta-quanta/meta-s6q/recipes-core/systemd/systemd-conf_%.bbappend b/meta-quanta/meta-s6q/recipes-core/systemd/systemd-conf_%.bbappend
index 519ca8d..519f992 100644
--- a/meta-quanta/meta-s6q/recipes-core/systemd/systemd-conf_%.bbappend
+++ b/meta-quanta/meta-s6q/recipes-core/systemd/systemd-conf_%.bbappend
@@ -1,24 +1,49 @@
 FILESEXTRAPATHS:prepend:s6q := "${THISDIR}/${PN}:"
 
-SRC_URI:append:s6q = "file://s6q-resolv.conf"
-SRC_URI:append:s6q = "${@bb.utils.contains('MACHINE_FEATURES', 'bonding', ' file://10-bmc-bond0.netdev', '', d)}"
-SRC_URI:append:s6q = "${@bb.utils.contains('MACHINE_FEATURES', 'bonding', ' file://bond-eth0.conf', '', d)}"
-SRC_URI:append:s6q = "${@bb.utils.contains('MACHINE_FEATURES', 'bonding', ' file://bond-eth1.conf', '', d)}"
+SRC_URI:append:s6q = " file://s6q-resolv.conf"
+BONDING_CONF = "\
+    file://10-bmc-bond0.netdev \
+    file://bond-eth0.conf \
+    file://bond-eth1.conf \
+    file://bond0.conf \
+    "
+SRC_URI:append:s6q = "${@bb.utils.contains('MACHINE_FEATURES', 'bonding',\
+                        ' ${BONDING_CONF}', '', d)}"
 
-FILES:${PN}:append:s6q = "${sysconfdir_native}/systemd/resolved.conf.d/s6q-resolv.conf"
-FILES:${PN}:append:s6q = "${@bb.utils.contains("MACHINE_FEATURES", "bonding", " ${sysconfdir_native}/systemd/network/10-bmc-bond0.netdev", "", d)}"
-FILES:${PN}:append:s6q = "${@bb.utils.contains("MACHINE_FEATURES", "bonding", " ${sysconfdir_native}/systemd/network/00-bmc-eth0.network.d/bond-eth0.conf", "", d)}"
-FILES:${PN}:append:s6q = "${@bb.utils.contains("MACHINE_FEATURES", "bonding", " ${sysconfdir_native}/systemd/network/00-bmc-eth1.network.d/bond-eth1.conf", "", d)}"
+FILES:${PN}:append:s6q = "\
+    ${sysconfdir}/systemd/resolved.conf.d/s6q-resolv.conf \
+    ${sysconfdir}/systemd/network/00-bmc-eth0.network.d/ \
+    ${sysconfdir}/systemd/network/00-bmc-eth1.network.d/ \
+    "
+BONDING_CONF_PATH = "\
+    ${sysconfdir}/systemd/network/10-bmc-bond0.netdev \
+    ${sysconfdir}/systemd/network/00-bmc-bond0.network.d/bond0.conf \
+    "
+FILES:${PN}:append:s6q = "${@bb.utils.contains('MACHINE_FEATURES', 'bonding',\
+                         ' ${BONDING_CONF_PATH}', '', d)}"
 
 do_install:append:s6q() {
-    install -d ${D}${sysconfdir_native}/systemd/resolved.conf.d/
-    install -m 0644 ${WORKDIR}/s6q-resolv.conf ${D}${sysconfdir_native}/systemd/resolved.conf.d/
-    if ${@bb.utils.contains('MACHINE_FEATURES', 'bonding', 'true', 'false', d)}; then
-        install -d ${D}${sysconfdir_native}/systemd/network/
-        install -d ${D}${sysconfdir_native}/systemd/network/00-bmc-eth0.network.d/
-        install -d ${D}${sysconfdir_native}/systemd/network/00-bmc-eth1.network.d/
-        install -m 0644 ${WORKDIR}/bond-eth0.conf ${D}${sysconfdir_native}/systemd/network/00-bmc-eth0.network.d/
-        install -m 0644 ${WORKDIR}/bond-eth1.conf ${D}${sysconfdir_native}/systemd/network/00-bmc-eth1.network.d/
-        install -m 0644 ${WORKDIR}/10-bmc-bond0.netdev ${D}${sysconfdir_native}/systemd/network
+    install -d ${D}${sysconfdir}/systemd/resolved.conf.d/
+    install -m 0644 ${WORKDIR}/s6q-resolv.conf \
+        ${D}${sysconfdir}/systemd/resolved.conf.d/
+    install -d ${D}${sysconfdir}/systemd/network/
+    install -d ${D}${sysconfdir}/systemd/network/00-bmc-eth0.network.d/
+    install -d ${D}${sysconfdir}/systemd/network/00-bmc-eth1.network.d/
+    if ${@bb.utils.contains('MACHINE_FEATURES', 'bonding', 'true', 'false', d)};
+    then
+        install -d ${D}${sysconfdir}/systemd/network/00-bmc-bond0.network.d/
+        install -m 0644 ${WORKDIR}/bond-eth0.conf \
+            ${D}${sysconfdir}/systemd/network/00-bmc-eth0.network.d/
+        install -m 0644 ${WORKDIR}/bond-eth1.conf \
+            ${D}${sysconfdir}/systemd/network/00-bmc-eth1.network.d/
+        install -m 0644 ${WORKDIR}/10-bmc-bond0.netdev \
+            ${D}${sysconfdir}/systemd/network/
+        install -m 0644 ${WORKDIR}/bond0.conf \
+            ${D}${sysconfdir}/systemd/network/00-bmc-bond0.network.d/
+    else
+        echo -e "[Network]\nLinkLocalAddressing=ipv6" > \
+            ${D}${sysconfdir}/systemd/network/00-bmc-eth0.network.d/eth0.conf
+        echo -e "[Network]\nLinkLocalAddressing=ipv6" > \
+            ${D}${sysconfdir}/systemd/network/00-bmc-eth1.network.d/eth1.conf
     fi
 }