Add 83-netsetup, an initramfs-framework module that configures the network interface via DHCP before the NFS root mount. Needed when the Ethernet driver is a loadable module and the deferred probe chain requires time to settle after udev loads the modules. Also add dhcpcd to packagegroup-ti-core-initramfs to support DHCP configuration.
Signed-off-by: Moteen Shah <[email protected]> --- .../initramfs-framework/83-netsetup | 54 +++++++++++++++++++ .../initramfs-framework_%.bbappend | 15 ++++++ .../packagegroup-ti-core-initramfs.bb | 2 + 3 files changed, 71 insertions(+) create mode 100644 meta-ti-bsp/recipes-core/initramfs-scripts/initramfs-framework/83-netsetup create mode 100644 meta-ti-bsp/recipes-core/initramfs-scripts/initramfs-framework_%.bbappend diff --git a/meta-ti-bsp/recipes-core/initramfs-scripts/initramfs-framework/83-netsetup b/meta-ti-bsp/recipes-core/initramfs-scripts/initramfs-framework/83-netsetup new file mode 100644 index 00000000..b71bc3b3 --- /dev/null +++ b/meta-ti-bsp/recipes-core/initramfs-scripts/initramfs-framework/83-netsetup @@ -0,0 +1,54 @@ +#!/bin/sh +# Configure network via DHCP before NFS root mount. Polls for an Ethernet +# interface with sleep 1 per iteration to allow the Ethernet driver deferred +# probe chain to settle after udev loads the modules. + +netsetup_enabled() { + [ "${bootparam_root}" = "/dev/nfs" ] || return 1 + return 0 +} + +netsetup_run() { + local iface timeout devtype + + # Extract interface from ip= kernel param (format: client:server:gw:mask:host:device:autoconf) + iface="" + case "${bootparam_ip}" in + dhcp|on|any|"") + ;; + *) + iface=$(echo "${bootparam_ip}" | cut -d: -f6) + ;; + esac + + udevadm trigger --action=add --subsystem-match=net + udevadm settle --timeout=10 + + # Poll up to 60 seconds for an Ethernet interface (ARPHRD_ETHER = type 1). + msg "netsetup: waiting for ethernet interface..." + timeout=60 + while [ "${timeout}" -gt 0 ]; do + if [ -n "${iface}" ] && [ -d "/sys/class/net/${iface}" ]; then + break + fi + for dev in /sys/class/net/*; do + [ -f "${dev}/type" ] || continue + devtype=$(cat "${dev}/type") + [ "${devtype}" = "1" ] || continue + iface=$(basename "${dev}") + break + done + [ -n "${iface}" ] && [ -d "/sys/class/net/${iface}" ] && break + sleep 1 + timeout=$((timeout - 1)) + done + + if [ -z "${iface}" ] || [ ! -d "/sys/class/net/${iface}" ]; then + msg "netsetup: no ethernet interface found after 60s, skipping DHCP" + return + fi + + msg "netsetup: configuring ${iface} via DHCP" + + dhcpcd --waitip "${iface}" +} diff --git a/meta-ti-bsp/recipes-core/initramfs-scripts/initramfs-framework_%.bbappend b/meta-ti-bsp/recipes-core/initramfs-scripts/initramfs-framework_%.bbappend new file mode 100644 index 00000000..c8955689 --- /dev/null +++ b/meta-ti-bsp/recipes-core/initramfs-scripts/initramfs-framework_%.bbappend @@ -0,0 +1,15 @@ +FILESEXTRAPATHS:prepend := "${THISDIR}/${PN}:" + +SUMMARY:initramfs-module-netsetup = "initramfs support for DHCP network setup before NFS root mount" + +SRC_URI:append = " file://83-netsetup" + +PACKAGES =+ "initramfs-module-netsetup" + +RDEPENDS:initramfs-module-netsetup = "${PN}-base" + +FILES:initramfs-module-netsetup = "/init.d/83-netsetup" + +do_install:append() { + install -m 0755 ${UNPACKDIR}/83-netsetup ${D}/init.d/83-netsetup +} diff --git a/meta-ti-bsp/recipes-ti/initramfs/packagegroup-ti-core-initramfs.bb b/meta-ti-bsp/recipes-ti/initramfs/packagegroup-ti-core-initramfs.bb index a9eff847..ede0639d 100644 --- a/meta-ti-bsp/recipes-ti/initramfs/packagegroup-ti-core-initramfs.bb +++ b/meta-ti-bsp/recipes-ti/initramfs/packagegroup-ti-core-initramfs.bb @@ -18,6 +18,8 @@ RDEPENDS:${PN} += "\ netbase \ base-files \ base-passwd \ + dhcpcd \ + initramfs-module-netsetup \ initramfs-framework-base \ initramfs-module-udev \ initramfs-module-nfsrootfs \ -- 2.34.1
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