#!/usr/bin/bash
# called by dracut
check() {
require_binaries nvme jq || return 1
is_nvmf() {
local _dev=$1
local trtype
[[ -L "/sys/dev/block/$_dev" ]] || return 0
cd -P "/sys/dev/block/$_dev" || return 0
if [ -f partition ]; then
cd ..
fi
for d in device/nvme*; do
[ -L "$d" ] || continue
if readlink "$d" | grep -q nvme-fabrics; then
trtype=$(cat "$d"/transport)
break
fi
done
[[ $trtype == "fc" ]] || [[ $trtype == "tcp" ]] || [[ $trtype == "rdma" ]]
}
has_nbft() {
local f found=
for f in /sys/firmware/acpi/tables/NBFT*; do
[ -f "$f" ] || continue
found=1
break
done
[[ $found ]]
}
[[ $hostonly ]] || [[ $mount_needs ]] && {
[ -f /etc/nvme/hostnqn ] || return 255
[ -f /etc/nvme/hostid ] || return 255
pushd . > /dev/null
for_each_host_dev_and_slaves is_nvmf
local _is_nvmf=$?
popd > /dev/null || exit
[[ $_is_nvmf == 0 ]] || return 255
if [ ! -f /sys/class/fc/fc_udev_device/nvme_discovery ] \
&& [ ! -f /etc/nvme/discovery.conf ] \
&& [ ! -f /etc/nvme/config.json ] && ! has_nbft; then
echo "No discovery arguments present"
return 255
fi
}
return 0
}
# called by dracut
depends() {
echo bash rootfs-block network
return 0
}
# called by dracut
installkernel() {
instmods nvme_fc lpfc qla2xxx
hostonly="" instmods nvme_tcp nvme_fabrics 8021q
# lookup NIC kernel modules for active NBFT interfaces
if [[ $hostonly ]]; then
for i in /sys/class/net/nbft*; do
[ -d "$i" ] || continue
_driver=$(basename "$(readlink -f "$i/device/driver/module")")
[ -z "$_driver" ] || instmods "$_driver"
done
fi
}
# called by dracut
cmdline() {
local _hostnqn
local _hostid
gen_nvmf_cmdline() {
local _dev=$1
local trtype
local traddr
local host_traddr
local trsvcid
local _address
local -a _address_parts
[[ -L "/sys/dev/block/$_dev" ]] || return 0
cd -P "/sys/dev/block/$_dev" || return 0
if [ -f partition ]; then
cd ..
fi
for d in device/nvme*; do
[ -L "$d" ] || continue
if readlink "$d" | grep -q nvme-fabrics; then
trtype=$(cat "$d"/transport)
break
fi
done
[ -z "$trtype" ] && return 0
nvme list-subsys "${PWD##*/}" | while read -r _ _ trtype _address _; do
[[ -z $trtype || $trtype != "${trtype#NQN}" ]] && continue
unset traddr
unset host_traddr
unset trsvcid
mapfile -t -d ',' _address_parts < <(printf "%s" "$_address")
for i in "${_address_parts[@]}"; do
[[ $i =~ ^traddr= ]] && traddr="${i#traddr=}"
[[ $i =~ ^host_traddr= ]] && host_traddr="${i#host_traddr=}"
[[ $i =~ ^trsvcid= ]] && trsvcid="${i#trsvcid=}"
done
[[ -z $traddr && -z $host_traddr && -z $trsvcid ]] && continue
echo -n " rd.nvmf.discover=$trtype,$traddr,$host_traddr,$trsvcid"
done
}
if [ -f /etc/nvme/hostnqn ]; then
_hostnqn=$(cat /etc/nvme/hostnqn)
echo -n " rd.nvmf.hostnqn=${_hostnqn}"
fi
if [ -f /etc/nvme/hostid ]; then
_hostid=$(cat /etc/nvme/hostid)
echo -n " rd.nvmf.hostid=${_hostid}"
fi
[[ $hostonly ]] || [[ $mount_needs ]] && {
pushd . > /dev/null
for_each_host_dev_and_slaves gen_nvmf_cmdline
popd > /dev/null || exit
}
}
# called by dracut
install() {
if [[ $hostonly_cmdline == "yes" ]]; then
local _nvmf_args
_nvmf_args=$(cmdline)
[[ "$_nvmf_args" ]] && printf "%s" "$_nvmf_args" >> "${initdir}/etc/cmdline.d/95nvmf-args.conf"
fi
inst_simple -H "/etc/nvme/hostnqn"
inst_simple -H "/etc/nvme/hostid"
inst_multiple ip sed
inst_script "${moddir}/nvmf-autoconnect.sh" /sbin/nvmf-autoconnect.sh
inst_script "${moddir}/nbftroot.sh" /sbin/nbftroot
inst_multiple nvme jq
inst_hook cmdline 92 "$moddir/parse-nvmf-boot-connections.sh"
inst_simple "/etc/nvme/discovery.conf"
inst_simple "/etc/nvme/config.json"
inst_rules /usr/lib/udev/rules.d/71-nvmf-iopolicy-netapp.rules
inst_rules "$moddir/95-nvmf-initqueue.rules"
dracut_need_initqueue
}
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