ref: a512e4360c1e75bab1bef62ee7b4067edcb7c9d9
parent: bf598dbe1e4642213f111cd7039fb94b0d1f1853
author: grobe0ba <grobe0ba@tcp80.org>
date: Tue May 23 09:30:10 CDT 2023
init: support for booting from an aoe device - aoe: causes the aoe module to be loaded. if passed a comma separated list of targets, it will attempt to explicitly discover these targets. aoe autodiscovery is automatic on linux, so passing a list of targets should not generally be needed. - aoe_iflist: takes a comma separated list of ethernet interfaces to attach to the aoe subsystem. this also ensures that those links are set to `up'. you effectively must pass this to use aoe because it is useless without being bound to at least one interface. it is up to the user to add the `network' and `aoe' features to mkinitfs.conf, and the necessary modules for the nic to the bootloader modules= configuration. Signed-off-by: grobe0ba <grobe0ba@tcp80.org>
--- a/Makefile
+++ b/Makefile
@@ -11,6 +11,7 @@
SHARE_FILES := initramfs-init fstab passwd group
CONF_FILES := mkinitfs.conf \
features.d/ata.modules \
+ features.d/aoe.modules \
features.d/base.files \
features.d/base.modules \
features.d/bootchart.files \
--- /dev/null
+++ b/features.d/aoe.modules
@@ -1,0 +1,1 @@
+kernel/drivers/block/aoe/*.ko*
--- a/initramfs-init.in
+++ b/initramfs-init.in
@@ -378,7 +378,7 @@
cryptdiscards cryptkey debug_init dma init init_args keep_apk_new modules ovl_dev
pkgs quiet root_size root usbdelay ip alpine_repo apkovl alpine_start splash
blacklist overlaytmpfs overlaytmpfsflags rootfstype rootflags nbd resume s390x_net
- dasd ssh_key BOOTIF zfcp uevent_buf_size"
+ dasd ssh_key BOOTIF zfcp uevent_buf_size aoe aoe_iflist aoe_mtu"
for opt; do
case "$opt" in
@@ -531,6 +531,28 @@
# TODO: Might fail because nlplug-findfs hasn't plugged eth0 yet
configure_ip
setup_nbd || echo "Failed to setup nbd device."
+fi
+
+if [ -n "$KOPT_aoe" ]; then
+ if [ -n "$KOPT_aoe_iflist" ]; then
+ for iface in $(echo "$KOPT_aoe_iflist" | tr ',' ' '); do
+ $MOCK ip link set dev "$iface" up
+ if [ -n "$KOPT_aoe_mtu" ]; then
+ $MOCK ip link set dev "$iface" mtu "$KOPT_aoe_mtu"
+ fi
+ done
+ $MOCK modprobe aoe aoe_iflist="$KOPT_aoe_iflist"
+ else
+ $MOCK modprobe aoe
+ fi
+ if [ "$KOPT_aoe" != "yes" ]; then
+ for target in $(echo "$KOPT_aoe" | tr ',' ' '); do
+ while [ ! -e /dev/etherd/e$target ]; do
+ echo discover "$target" >>/dev/etherd/discover
+ sleep 1
+ done
+ done
+ fi
fi
# zpool reports /dev/zfs missing if it can't read /etc/mtab
--- a/tests/initramfs-init.test
+++ b/tests/initramfs-init.test
@@ -15,7 +15,8 @@
initramfs_init_tmpfs_root_remount_opts \
initramfs_init_tmpfs_root_tiny_cloud \
initramfs_init_tmpfs_root_tiny_cloud_disabled \
- initramfs_init_tmpfs_root_apkovl_url
+ initramfs_init_tmpfs_root_apkovl_url \
+ initramfs_init_aoe
fake_cmdline() {mkdir -p proc
@@ -287,4 +288,14 @@
initramfs-init
}
+initramfs_init_aoe_body() {+ fake_cmdline "aoe=yes aoe_iflist=eth0 aoe_mtu=9000"
+ fake_sysroot_init
+ fake_switch_root
+ atf_check \
+ -o match:'ip link set dev eth0 up' \
+ -o match:'ip link set dev eth0 mtu 9000' \
+ -o match:'modprobe aoe aoe_iflist=eth0' \
+ initramfs-init
+}