[Unit]
Description=RDMA Node Description Daemon
Documentation=man:rdma-ndd
StopWhenUnneeded=yes
# rdma-ndd is a kernel support program and needs to run as early as possible,
# before the network link is brought up, and before an external manager tries
# to read the local node description.
DefaultDependencies=no
Before=sysinit.target
# Do not execute concurrently with an ongoing shutdown (required for DefaultDependencies=no)
Conflicts=shutdown.target
Before=shutdown.target
# Networking, particularly link up, should not happen until ndd is ready
Wants=network-pre.target
Before=network-pre.target
# rdma-hw is not ready until ndd is running
Before=rdma-hw.target

[Service]
Type=notify
Restart=always
ExecStart=/usr/sbin/rdma-ndd --systemd

# rdma-ndd is automatically wanted by udev when an RDMA device with a node description is present