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#!/bin/sh
#
# Supported formats:
# nvmf.hostnqn=<hostnqn>
# nvmf.hostid=<hostid>
# nvmf.discover=<transport>:<traddr>:<host-traddr>:<trsvcid>
#
# Examples:
# nvmf.hostnqn=nqn.2014-08.org.nvmexpress:uuid:37303738-3034-584d-5137-333230423843
# nvmf.discover=rdma:192.168.1.3::4420
# nvme.discover=tcp:192.168.1.3::4420
# nvme.discover=tcp:192.168.1.3
# nvmf.discover=fc:auto
#
# Note: FC does autodiscovery, so typically there is no need to
# specify any discover parameters for FC.
#
type is_ip >/dev/null 2>&1 || . /lib/net-lib.sh
if getargbool 0 rd.nonvmf ; then
warn "rd.nonvmf=0: skipping nvmf"
return 0
fi
initqueue --onetime modprobe --all -b -q nvme nvme_tcp nvme_core nvme_fabrics
traddr="none"
trtype="none"
hosttraddr="none"
trsvcid=4420
validate_ip_conn() {
if ! getargbool 0 rd.neednet ; then
warn "$trtype transport requires rd.neednet=1"
return 1
fi
local_address=$(ip -o route get to $traddr | sed -n 's/.*src \([0-9a-f.:]*\).*/\1/p')
# confirm we got a local IP address
if ! is_ip "$local_address" ; then
warn "$traddr is an invalid address";
return 1
fi
ifname=$(ip -o route get to $local_address | sed -n 's/.*dev \([^ ]*\).*/\1/p')
if ip l show "$ifname" >/dev/null 2>&1 ; then
warn "invalid network interface $ifname"
return 1
fi
# confirm there's a route to destination
if ip route get "$traddr" >/dev/null 2>&1 ; then
warn "no route to $traddr"
return 1
fi
}
parse_nvmf_discover() {
OLDIFS="$IFS"
IFS=:
set $1
IFS="$OLDIFS"
case $# in
2)
[ -n "$1" ] && trtype=$1
[ -n "$2" ] && traddr=$2
;;
3)
[ -n "$1" ] && trtype=$1
[ -n "$2" ] && traddr=$2
[ -n "$3" ] && hosttraddr=$3
;;
4)
[ -n "$1" ] && trtype=$1
[ -n "$2" ] && traddr=$2
[ -n "$3" ] && hosttraddr=$3
[ -n "$4" ] && trsvcid=$4
;;
*)
warn "Invalid arguments for nvmf.discover=$1"
return 1
;;
esac
if [ "$traddr" = "none" ] ; then
warn "traddr is mandatory for $trtype"
return 1;
fi
if [ "$trtype" = "fc" ] ; then
if [ "$hosttraddr" = "none" ] ; then
warn "host traddr is mandatory for fc"
return 1
fi
elif [ "$trtype" != "rdma" ] && [ "$trtype" != "tcp" ] ; then
warn "unsupported transport $trtype"
return 1
fi
if [ "$trtype" = "tcp" ]; then
validate_ip_conn
fi
echo "--transport=$trtype --traddr=$traddr --host-traddr=$hosttraddr --trsvcid=$trsvcid" >> /etc/nvme/discovery.conf
}
nvmf_hostnqn=$(getarg nvmf.hostnqn=)
if [ -n "$nvmf_hostnqn" ] ; then
echo "$nvmf_hostnqn" > /etc/nvme/hostnqn
fi
nvmf_hostid=$(getarg nvmf.hostid=)
if [ -n "$nvmf_hostid" ] ; then
echo "$nvmf_hostid" > /etc/nvme/hostid
fi
for d in $(getargs nvmf.discover=); do
parse_nvmf_discover "$d"
done
# Host NQN and host id are mandatory for NVMe-oF
[ -f "/etc/nvme/hostnqn" ] || exit 0
[ -f "/etc/nvme/hostid" ] || exit 0
if [ -f "/etc/nvme/discovery.conf" ] ; then
if [ "$trtype" = "tcp" ] ; then
/sbin/initqueue --settled --onetime --unique --name nvme-discover /usr/sbin/nvme connect-all
> /tmp/net.$ifname.did-setup
else
/sbin/initqueue --onetime --unique --name nvme-discover /usr/sbin/nvme connect-all
fi
else
if [ "$trtype" = "tcp" ] ; then
/sbin/initqueue --settled --onetime --unique /usr/sbin/nvme connect-all -t tcp -a $traddr -s $trsvcid
> /tmp/net.$ifname.did-setup
else
/sbin/initqueue --finished --onetime --unique --name nvme-fc-autoconnect /sbin/nvmf-autoconnect.sh
fi
fi
........