diff --git a/share/man/man4/Makefile b/share/man/man4/Makefile
index b8e63315cb95..abdc1b0f4c4b 100644
--- a/share/man/man4/Makefile
+++ b/share/man/man4/Makefile
@@ -1,1056 +1,1058 @@
 #	@(#)Makefile	8.1 (Berkeley) 6/18/93
 # $FreeBSD$
 
 .include <src.opts.mk>
 
 MAN=	aac.4 \
 	aacraid.4 \
 	acpi.4 \
 	${_acpi_asus.4} \
 	${_acpi_asus_wmi.4} \
 	${_acpi_dock.4} \
 	${_acpi_fujitsu.4} \
 	${_acpi_hp.4} \
 	${_acpi_ibm.4} \
 	${_acpi_panasonic.4} \
 	${_acpi_rapidstart.4} \
 	${_acpi_sony.4} \
 	acpi_thermal.4 \
 	acpi_battery.4 \
 	${_acpi_toshiba.4} \
 	acpi_video.4 \
 	${_acpi_wmi.4} \
 	ada.4 \
 	adm6996fc.4 \
 	ads111x.4 \
 	ae.4 \
 	${_aesni.4} \
 	age.4 \
 	agp.4 \
 	ahc.4 \
 	ahci.4 \
 	ahd.4 \
 	${_aibs.4} \
 	aio.4 \
 	alc.4 \
 	ale.4 \
 	alpm.4 \
 	altera_atse.4 \
 	altera_avgen.4 \
 	altera_jtag_uart.4 \
 	altera_sdcard.4 \
 	altq.4 \
 	amdpm.4 \
 	${_amdsbwd.4} \
 	${_amdsmb.4} \
 	${_amdsmn.4} \
 	${_amdtemp.4} \
 	${_bxe.4} \
 	amr.4 \
 	an.4 \
 	${_aout.4} \
 	${_apic.4} \
 	arcmsr.4 \
 	${_asmc.4} \
 	at45d.4 \
 	ata.4 \
 	ath.4 \
 	ath_ahb.4 \
 	ath_hal.4 \
 	ath_pci.4 \
 	atkbd.4 \
 	atkbdc.4 \
 	atp.4 \
 	${_atf_test_case.4} \
 	${_atrtc.4} \
 	${_attimer.4} \
 	audit.4 \
 	auditpipe.4 \
 	aue.4 \
 	axe.4 \
 	axge.4 \
 	bce.4 \
 	bcma.4 \
 	bfe.4 \
 	bge.4 \
 	${_bhyve.4} \
 	bhnd.4 \
 	bhnd_chipc.4 \
 	bhnd_pmu.4 \
 	bhndb.4 \
 	bhndb_pci.4 \
 	blackhole.4 \
 	bnxt.4 \
 	bpf.4 \
 	bridge.4 \
 	bt.4 \
 	bwi.4 \
 	bwn.4 \
 	${_bytgpio.4} \
 	capsicum.4 \
 	cardbus.4 \
 	carp.4 \
 	cas.4 \
 	cc_cdg.4 \
 	cc_chd.4 \
 	cc_cubic.4 \
 	cc_dctcp.4 \
 	cc_hd.4 \
 	cc_htcp.4 \
 	cc_newreno.4 \
 	cc_vegas.4 \
 	${_ccd.4} \
 	ccr.4 \
 	cd.4 \
 	cdce.4 \
 	cdceem.4 \
 	cfi.4 \
 	cfumass.4 \
 	${_cgem.4} \
 	ch.4 \
 	chromebook_platform.4 \
 	${_chvgpio.4} \
 	ciss.4 \
 	cloudabi.4 \
 	${_coretemp.4} \
 	cp2112.4 \
 	${_cpuctl.4} \
 	cpufreq.4 \
 	crypto.4 \
 	ctl.4 \
 	cue.4 \
 	cxgb.4 \
 	cxgbe.4 \
 	cxgbev.4 \
 	cyapa.4 \
 	da.4 \
 	dc.4 \
 	dcons.4 \
 	dcons_crom.4 \
 	ddb.4 \
 	devctl.4 \
 	disc.4 \
 	disk.4 \
 	divert.4 \
 	${_dpms.4} \
 	ds1307.4 \
 	ds3231.4 \
 	${_dtrace_provs} \
 	dummynet.4 \
 	edsc.4 \
 	ehci.4 \
 	em.4 \
 	ena.4 \
 	enc.4 \
 	epair.4 \
 	esp.4 \
 	est.4 \
 	et.4 \
 	etherswitch.4 \
 	eventtimers.4 \
 	exca.4 \
 	e6060sw.4 \
 	fd.4 \
 	fdc.4 \
 	fdt.4 \
 	fdt_pinctrl.4 \
 	fdtbus.4 \
 	ffclock.4 \
 	filemon.4 \
 	firewire.4 \
 	${_ftwd.4} \
 	full.4 \
 	fwe.4 \
 	fwip.4 \
 	fwohci.4 \
 	fxp.4 \
 	gbde.4 \
 	gdb.4 \
 	gem.4 \
 	geom.4 \
 	geom_linux_lvm.4 \
 	geom_map.4 \
 	geom_uzip.4 \
 	gif.4 \
 	gpio.4 \
 	gpioiic.4 \
 	gpiokeys.4 \
 	gpioled.4 \
 	gpioths.4 \
 	gre.4 \
 	h_ertt.4 \
 	hconf.4 \
 	hcons.4 \
 	hgame.4 \
 	hidbus.4 \
 	hidquirk.4 \
 	hidraw.4 \
 	hifn.4 \
 	hkbd.4 \
 	hms.4 \
 	hmt.4 \
 	hpen.4 \
 	hpet.4 \
 	${_hpt27xx.4} \
 	${_hptiop.4} \
 	${_hptmv.4} \
 	${_hptnr.4} \
 	${_hptrr.4} \
 	hsctrl.4 \
 	${_hv_kvp.4} \
 	${_hv_netvsc.4} \
 	${_hv_storvsc.4} \
 	${_hv_utils.4} \
 	${_hv_vmbus.4} \
 	${_hv_vss.4} \
 	hwpmc.4 \
 	${_hwpstate_intel.4} \
 	iavf.4 \
 	ichsmb.4 \
 	${_ichwd.4} \
 	icmp.4 \
 	icmp6.4 \
 	ida.4 \
 	if_ipsec.4 \
 	iflib.4 \
 	ifmib.4 \
 	ig4.4 \
 	igmp.4 \
 	iic.4 \
 	iic_gpiomux.4 \
 	iicbb.4 \
 	iicbus.4 \
 	iichid.4 \
 	iicmux.4 \
 	iicsmb.4 \
 	iir.4 \
 	${_imcsmb.4} \
 	inet.4 \
 	inet6.4 \
 	intpm.4 \
 	intro.4 \
 	${_io.4} \
 	${_ioat.4} \
 	ip.4 \
 	ip6.4 \
 	ipfirewall.4 \
 	ipheth.4 \
 	${_ipmi.4} \
 	ips.4 \
 	ipsec.4 \
 	ipw.4 \
 	ipwfw.4 \
 	isci.4 \
 	isl.4 \
 	ismt.4 \
 	isp.4 \
 	ispfw.4 \
 	${_itwd.4} \
 	iwi.4 \
 	iwifw.4 \
 	iwm.4 \
 	iwmfw.4 \
 	iwn.4 \
 	iwnfw.4 \
 	ixgbe.4 \
 	ixl.4 \
 	jedec_dimm.4 \
 	jme.4 \
 	kbdmux.4 \
 	kcov.4 \
 	keyboard.4 \
 	kld.4 \
 	ksyms.4 \
 	ksz8995ma.4 \
 	ktls.4 \
 	ktr.4 \
 	kue.4 \
 	lagg.4 \
 	le.4 \
 	led.4 \
 	lge.4 \
 	${_linux.4} \
 	liquidio.4 \
 	lm75.4 \
 	lo.4 \
 	lp.4 \
 	lpbb.4 \
 	lpt.4 \
 	ltc430x.4 \
 	mac.4 \
 	mac_biba.4 \
 	mac_bsdextended.4 \
 	mac_ifoff.4 \
 	mac_lomac.4 \
 	mac_mls.4 \
 	mac_none.4 \
 	mac_ntpd.4 \
 	mac_partition.4 \
 	mac_portacl.4 \
 	mac_seeotheruids.4 \
 	mac_stub.4 \
 	mac_test.4 \
 	malo.4 \
 	md.4 \
 	mdio.4 \
 	me.4 \
 	mem.4 \
 	meteor.4 \
 	mfi.4 \
 	miibus.4 \
 	mld.4 \
 	mlx.4 \
 	mlx4en.4 \
 	mlx5en.4 \
 	mly.4 \
 	mmc.4 \
 	mmcsd.4 \
 	mn.4 \
 	mod_cc.4 \
 	mos.4 \
 	mouse.4 \
 	mpr.4 \
 	mps.4 \
 	mpt.4 \
 	mrsas.4 \
 	msk.4 \
 	mtio.4 \
 	multicast.4 \
 	muge.4 \
 	mvs.4 \
 	mwl.4 \
 	mwlfw.4 \
 	mx25l.4 \
 	mxge.4 \
 	my.4 \
 	${_ndis.4} \
 	net80211.4 \
 	netdump.4 \
 	netfpga10g_nf10bmac.4 \
 	netgdb.4 \
 	netgraph.4 \
 	netintro.4 \
 	netmap.4 \
 	${_nfe.4} \
 	${_nfsmb.4} \
 	ng_async.4 \
 	ngatmbase.4 \
 	ng_atmllc.4 \
 	ng_bpf.4 \
 	ng_bridge.4 \
 	ng_btsocket.4 \
 	ng_car.4 \
 	ng_ccatm.4 \
 	ng_checksum.4 \
 	ng_cisco.4 \
 	ng_deflate.4 \
 	ng_device.4 \
 	nge.4 \
 	ng_echo.4 \
 	ng_eiface.4 \
 	ng_etf.4 \
 	ng_ether.4 \
 	ng_ether_echo.4 \
 	ng_frame_relay.4 \
 	ng_gif.4 \
 	ng_gif_demux.4 \
 	ng_h4.4 \
 	ng_hci.4 \
 	ng_hole.4 \
 	ng_hub.4 \
 	ng_iface.4 \
 	ng_ipfw.4 \
 	ng_ip_input.4 \
 	ng_ksocket.4 \
 	ng_l2cap.4 \
 	ng_l2tp.4 \
 	ng_lmi.4 \
 	ng_macfilter.4 \
 	ng_mppc.4 \
 	ng_nat.4 \
 	ng_netflow.4 \
 	ng_one2many.4 \
 	ng_patch.4 \
 	ng_pipe.4 \
 	ng_ppp.4 \
 	ng_pppoe.4 \
 	ng_pptpgre.4 \
 	ng_pred1.4 \
 	ng_rfc1490.4 \
 	ng_socket.4 \
 	ng_source.4 \
 	ng_split.4 \
 	ng_sppp.4 \
 	ng_sscfu.4 \
 	ng_sscop.4 \
 	ng_tag.4 \
 	ng_tcpmss.4 \
 	ng_tee.4 \
 	ng_tty.4 \
 	ng_ubt.4 \
 	ng_UI.4 \
 	ng_uni.4 \
 	ng_vjc.4 \
 	ng_vlan.4 \
 	nmdm.4 \
 	${_ntb.4} \
 	${_ntb_hw_amd.4} \
 	${_ntb_hw_intel.4} \
 	${_ntb_hw_plx.4} \
 	${_ntb_transport.4} \
 	${_nda.4} \
 	${_if_ntb.4} \
 	null.4 \
 	numa.4 \
 	${_nvd.4} \
 	${_nvdimm.4} \
 	${_nvme.4} \
 	${_nvram.4} \
 	${_nvram2env.4} \
 	oce.4 \
 	ocs_fc.4\
 	ohci.4 \
+	openfirm.4 \
 	orm.4 \
 	${_ossl.4} \
 	ow.4 \
 	ow_temp.4 \
 	owc.4 \
 	${_padlock.4} \
 	pass.4 \
 	pccard.4 \
 	pccbb.4 \
 	pcf.4 \
 	${_pchtherm.4} \
 	pci.4 \
 	pcib.4 \
 	pcic.4 \
 	pcm.4 \
 	${_pf.4} \
 	${_pflog.4} \
 	${_pfsync.4} \
 	pim.4 \
 	pms.4 \
 	polling.4 \
 	ppbus.4 \
 	ppc.4 \
 	ppi.4 \
 	procdesc.4 \
 	proto.4 \
 	ps4dshock.4 \
 	psm.4 \
 	pst.4 \
 	pt.4 \
 	ptnet.4 \
 	pts.4 \
 	pty.4 \
 	puc.4 \
 	pwmc.4 \
 	${_qat.4} \
 	${_qlxge.4} \
 	${_qlxgb.4} \
 	${_qlxgbe.4} \
 	${_qlnxe.4} \
 	ral.4 \
 	random.4 \
 	rctl.4 \
 	re.4 \
 	rgephy.4 \
 	rights.4 \
 	rl.4 \
 	rndtest.4 \
 	route.4 \
 	rtsx.4 \
 	rtwn.4 \
 	rtwnfw.4 \
 	rtwn_pci.4 \
 	rue.4 \
 	sa.4 \
 	safe.4 \
 	safexcel.4 \
 	sbp.4 \
 	sbp_targ.4 \
 	scc.4 \
 	sched_4bsd.4 \
 	sched_ule.4 \
 	screen.4 \
 	scsi.4 \
 	sctp.4 \
 	sdhci.4 \
 	sem.4 \
 	send.4 \
 	ses.4 \
 	${_sfxge.4} \
 	sge.4 \
 	siba.4 \
 	siftr.4 \
 	siis.4 \
 	simplebus.4 \
 	sis.4 \
 	sk.4 \
 	${_smartpqi.4} \
 	smb.4 \
 	smbios.4 \
 	smbus.4 \
 	smp.4 \
 	smsc.4 \
 	snd_ad1816.4 \
 	snd_als4000.4 \
 	snd_atiixp.4 \
 	snd_cmi.4 \
 	snd_cs4281.4 \
 	snd_csa.4 \
 	snd_ds1.4 \
 	snd_emu10k1.4 \
 	snd_emu10kx.4 \
 	snd_envy24.4 \
 	snd_envy24ht.4 \
 	snd_es137x.4 \
 	snd_ess.4 \
 	snd_fm801.4 \
 	snd_gusc.4 \
 	snd_hda.4 \
 	snd_hdspe.4 \
 	snd_ich.4 \
 	snd_maestro3.4 \
 	snd_maestro.4 \
 	snd_mss.4 \
 	snd_neomagic.4 \
 	snd_sbc.4 \
 	snd_solo.4 \
 	snd_spicds.4 \
 	snd_t4dwave.4 \
 	snd_uaudio.4 \
 	snd_via8233.4 \
 	snd_via82c686.4 \
 	snd_vibes.4 \
 	snp.4 \
 	spigen.4 \
 	${_spkr.4} \
 	splash.4 \
 	sppp.4 \
 	ste.4 \
 	stf.4 \
 	stge.4 \
 	${_sume.4} \
 	${_superio.4} \
 	sym.4 \
 	syncache.4 \
 	syncer.4 \
 	syscons.4 \
 	sysmouse.4 \
 	tap.4 \
 	targ.4 \
 	tcp.4 \
 	tcp_bbr.4 \
 	tdfx.4 \
 	terasic_mtl.4 \
 	termios.4 \
 	textdump.4 \
 	ti.4 \
 	timecounters.4 \
 	${_tpm.4} \
 	tty.4 \
 	tun.4 \
 	twa.4 \
 	twe.4 \
 	tws.4 \
 	udp.4 \
 	udplite.4 \
 	ure.4 \
 	vale.4 \
 	vga.4 \
 	vge.4 \
 	viapm.4 \
 	${_viawd.4} \
 	${_virtio.4} \
 	${_virtio_balloon.4} \
 	${_virtio_blk.4} \
 	${_virtio_console.4} \
 	${_virtio_random.4} \
 	${_virtio_scsi.4} \
 	${_vmci.4} \
 	vkbd.4 \
 	vlan.4 \
 	vxlan.4 \
 	${_vmd.4} \
 	${_vmm.4} \
 	${_vmx.4} \
 	vr.4 \
 	vt.4 \
 	vte.4 \
 	${_vtnet.4} \
 	watchdog.4 \
 	${_wbwd.4} \
 	witness.4 \
 	wlan.4 \
 	wlan_acl.4 \
 	wlan_amrr.4 \
 	wlan_ccmp.4 \
 	wlan_tkip.4 \
 	wlan_wep.4 \
 	wlan_xauth.4 \
 	wmt.4 \
 	${_wpi.4} \
 	wsp.4 \
 	xb360gp.4 \
 	${_xen.4} \
 	xhci.4 \
 	xl.4 \
 	${_xnb.4} \
 	xpt.4 \
 	zero.4
 
 MLINKS=	ads111x.4 ads1013.4 \
 	ads111x.4 ads1014.4 \
 	ads111x.4 ads1015.4 \
 	ads111x.4 ads1113.4 \
 	ads111x.4 ads1114.4 \
 	ads111x.4 ads1115.4
 MLINKS+=ae.4 if_ae.4
 MLINKS+=age.4 if_age.4
 MLINKS+=agp.4 agpgart.4
 MLINKS+=alc.4 if_alc.4
 MLINKS+=ale.4 if_ale.4
 MLINKS+=altera_atse.4 atse.4
 MLINKS+=altera_sdcard.4 altera_sdcardc.4
 MLINKS+=altq.4 ALTQ.4
 MLINKS+=ath.4 if_ath.4
 MLINKS+=ath_pci.4 if_ath_pci.4
 MLINKS+=an.4 if_an.4
 MLINKS+=aue.4 if_aue.4
 MLINKS+=axe.4 if_axe.4
 MLINKS+=bce.4 if_bce.4
 MLINKS+=bfe.4 if_bfe.4
 MLINKS+=bge.4 if_bge.4
 MLINKS+=bnxt.4 if_bnxt.4
 MLINKS+=bridge.4 if_bridge.4
 MLINKS+=bwi.4 if_bwi.4
 MLINKS+=bwn.4 if_bwn.4
 MLINKS+=${_bxe.4} ${_if_bxe.4}
 MLINKS+=cas.4 if_cas.4
 MLINKS+=cdce.4 if_cdce.4
 MLINKS+=cfi.4 cfid.4
 MLINKS+=cloudabi.4 cloudabi32.4 \
 	cloudabi.4 cloudabi64.4
 MLINKS+=crypto.4 cryptodev.4
 MLINKS+=cue.4 if_cue.4
 MLINKS+=cxgb.4 if_cxgb.4
 MLINKS+=cxgbe.4 if_cxgbe.4 \
 	cxgbe.4 vcxgbe.4 \
 	cxgbe.4 if_vcxgbe.4 \
 	cxgbe.4 cxl.4 \
 	cxgbe.4 if_cxl.4 \
 	cxgbe.4 vcxl.4 \
 	cxgbe.4 if_vcxl.4 \
 	cxgbe.4 cc.4 \
 	cxgbe.4 if_cc.4 \
 	cxgbe.4 vcc.4 \
 	cxgbe.4 if_vcc.4
 MLINKS+=cxgbev.4 if_cxgbev.4 \
 	cxgbev.4 cxlv.4 \
 	cxgbev.4 if_cxlv.4 \
 	cxgbev.4 ccv.4 \
 	cxgbev.4 if_ccv.4
 MLINKS+=dc.4 if_dc.4
 MLINKS+=disc.4 if_disc.4
 MLINKS+=edsc.4 if_edsc.4
 MLINKS+=em.4 if_em.4 \
 	em.4 igb.4 \
 	em.4 if_igb.4
 MLINKS+=enc.4 if_enc.4
 MLINKS+=epair.4 if_epair.4
 MLINKS+=et.4 if_et.4
 MLINKS+=fd.4 stderr.4 \
 	fd.4 stdin.4 \
 	fd.4 stdout.4
 MLINKS+=fdt.4 FDT.4
 MLINKS+=firewire.4 ieee1394.4
 MLINKS+=fwe.4 if_fwe.4
 MLINKS+=fwip.4 if_fwip.4
 MLINKS+=fxp.4 if_fxp.4
 MLINKS+=gem.4 if_gem.4
 MLINKS+=geom.4 GEOM.4
 MLINKS+=gif.4 if_gif.4
 MLINKS+=gpio.4 gpiobus.4
 MLINKS+=gpioths.4 dht11.4
 MLINKS+=gpioths.4 dht22.4
 MLINKS+=gre.4 if_gre.4
 MLINKS+=hpet.4 acpi_hpet.4
 MLINKS+=${_hptrr.4} ${_rr232x.4}
 MLINKS+=${_attimer.4} ${_i8254.4}
 MLINKS+=ip.4 rawip.4
 MLINKS+=ipfirewall.4 ipaccounting.4 \
 	ipfirewall.4 ipacct.4 \
 	ipfirewall.4 ipfw.4
 MLINKS+=ipheth.4 if_ipheth.4
 MLINKS+=ipw.4 if_ipw.4
 MLINKS+=iwi.4 if_iwi.4
 MLINKS+=iwm.4 if_iwm.4
 MLINKS+=iwn.4 if_iwn.4
 MLINKS+=ixgbe.4 ix.4
 MLINKS+=ixgbe.4 if_ix.4
 MLINKS+=ixgbe.4 if_ixgbe.4
 MLINKS+=ixl.4 if_ixl.4
 MLINKS+=iavf.4 if_iavf.4
 MLINKS+=jme.4 if_jme.4
 MLINKS+=kue.4 if_kue.4
 MLINKS+=lagg.4 trunk.4
 MLINKS+=lagg.4 if_lagg.4
 MLINKS+=le.4 if_le.4
 MLINKS+=lge.4 if_lge.4
 MLINKS+=lo.4 loop.4
 MLINKS+=lp.4 plip.4
 MLINKS+=malo.4 if_malo.4
 MLINKS+=md.4 vn.4
 MLINKS+=mem.4 kmem.4
 MLINKS+=mfi.4 mfi_linux.4 \
 	mfi.4 mfip.4
 MLINKS+=mlx5en.4 mce.4
 MLINKS+=mn.4 if_mn.4
 MLINKS+=mos.4 if_mos.4
 MLINKS+=msk.4 if_msk.4
 MLINKS+=mwl.4 if_mwl.4
 MLINKS+=mxge.4 if_mxge.4
 MLINKS+=my.4 if_my.4
 MLINKS+=${_ndis.4} ${_if_ndis.4}
 MLINKS+=netfpga10g_nf10bmac.4 if_nf10bmac.4
 MLINKS+=netintro.4 net.4 \
 	netintro.4 networking.4
 MLINKS+=${_nfe.4} ${_if_nfe.4}
 MLINKS+=nge.4 if_nge.4
+MLINKS+=openfirm.4 openfirmware.4
 MLINKS+=ow.4 onewire.4
 MLINKS+=pccbb.4 cbb.4
 MLINKS+=pcm.4 snd.4 \
 	pcm.4 sound.4
 MLINKS+=pms.4 pmspcv.4
 MLINKS+=ptnet.4 if_ptnet.4
 MLINKS+=ral.4 if_ral.4
 MLINKS+=re.4 if_re.4
 MLINKS+=rl.4 if_rl.4
 MLINKS+=rtwn_pci.4 if_rtwn_pci.4
 MLINKS+=rue.4 if_rue.4
 MLINKS+=scsi.4 CAM.4 \
 	scsi.4 cam.4 \
 	scsi.4 scbus.4 \
 	scsi.4 SCSI.4
 MLINKS+=sge.4 if_sge.4
 MLINKS+=sis.4 if_sis.4
 MLINKS+=sk.4 if_sk.4
 MLINKS+=smp.4 SMP.4
 MLINKS+=smsc.4 if_smsc.4
 MLINKS+=snd_envy24.4 snd_ak452x.4
 MLINKS+=snd_sbc.4 snd_sb16.4 \
 	snd_sbc.4 snd_sb8.4
 MLINKS+=${_spkr.4} ${_speaker.4}
 MLINKS+=splash.4 screensaver.4
 MLINKS+=ste.4 if_ste.4
 MLINKS+=stf.4 if_stf.4
 MLINKS+=stge.4 if_stge.4
 MLINKS+=syncache.4 syncookies.4
 MLINKS+=syscons.4 sc.4
 MLINKS+=tap.4 if_tap.4 \
 	tap.4 vmnet.4 \
 	tap.4 if_vmnet.4
 MLINKS+=tdfx.4 tdfx_linux.4
 MLINKS+=ti.4 if_ti.4
 MLINKS+=tun.4 if_tun.4
 MLINKS+=ure.4 if_ure.4
 MLINKS+=vge.4 if_vge.4
 MLINKS+=vlan.4 if_vlan.4
 MLINKS+=vxlan.4 if_vxlan.4
 MLINKS+=${_vmx.4} ${_if_vmx.4}
 MLINKS+=vr.4 if_vr.4
 MLINKS+=vte.4 if_vte.4
 MLINKS+=${_vtnet.4} ${_if_vtnet.4}
 MLINKS+=watchdog.4 SW_WATCHDOG.4
 MLINKS+=${_wpi.4} ${_if_wpi.4}
 MLINKS+=xl.4 if_xl.4
 
 .if ${MACHINE_CPUARCH} == "amd64" || ${MACHINE_CPUARCH} == "i386"
 _acpi_asus.4=	acpi_asus.4
 _acpi_asus_wmi.4=	acpi_asus_wmi.4
 _acpi_dock.4=	acpi_dock.4
 _acpi_fujitsu.4=acpi_fujitsu.4
 _acpi_hp.4=	acpi_hp.4
 _acpi_ibm.4=	acpi_ibm.4
 _acpi_panasonic.4=acpi_panasonic.4
 _acpi_rapidstart.4=acpi_rapidstart.4
 _acpi_sony.4=	acpi_sony.4
 _acpi_toshiba.4=acpi_toshiba.4
 _acpi_wmi.4=	acpi_wmi.4
 _aesni.4=	aesni.4
 _aout.4=	aout.4
 _apic.4=	apic.4
 _atrtc.4=	atrtc.4
 _attimer.4=	attimer.4
 _aibs.4=	aibs.4
 _amdsbwd.4=	amdsbwd.4
 _amdsmb.4=	amdsmb.4
 _amdsmn.4=	amdsmn.4
 _amdtemp.4=	amdtemp.4
 _asmc.4=	asmc.4
 _bxe.4=		bxe.4
 _bytgpio.4=	bytgpio.4
 _chvgpio.4=	chvgpio.4
 _coretemp.4=	coretemp.4
 _cpuctl.4=	cpuctl.4
 _dpms.4=	dpms.4
 _ftwd.4=	ftwd.4
 _hpt27xx.4=	hpt27xx.4
 _hptiop.4=	hptiop.4
 _hptmv.4=	hptmv.4
 _hptnr.4=	hptnr.4
 _hptrr.4=	hptrr.4
 _hv_kvp.4=	hv_kvp.4
 _hv_netvsc.4=	hv_netvsc.4
 _hv_storvsc.4=	hv_storvsc.4
 _hv_utils.4=	hv_utils.4
 _hv_vmbus.4=	hv_vmbus.4
 _hv_vss.4=	hv_vss.4
 _hwpstate_intel.4=	hwpstate_intel.4
 _i8254.4=	i8254.4
 _ichwd.4=	ichwd.4
 _if_bxe.4=	if_bxe.4
 _if_ndis.4=	if_ndis.4
 _if_nfe.4=	if_nfe.4
 _if_urtw.4=	if_urtw.4
 _if_vmx.4=	if_vmx.4
 _if_vtnet.4=	if_vtnet.4
 _if_wpi.4=	if_wpi.4
 _imcsmb.4=	imcsmb.4
 _ipmi.4=	ipmi.4
 _io.4=		io.4
 _itwd.4=	itwd.4
 _linux.4=	linux.4
 _nda.4=		nda.4
 _ndis.4=	ndis.4
 _nfe.4=		nfe.4
 _nfsmb.4=	nfsmb.4
 _if_ntb.4=	if_ntb.4
 _ntb.4=		ntb.4
 _ntb_hw_amd.4=	ntb_hw_amd.4
 _ntb_hw_intel.4=	ntb_hw_intel.4
 _ntb_hw_plx.4=	ntb_hw_plx.4
 _ntb_transport.4=ntb_transport.4
 _nvd.4=		nvd.4
 _nvme.4=	nvme.4
 _nvram.4=	nvram.4
 _ossl.4=	ossl.4
 _padlock.4=	padlock.4
 _pchtherm.4=	pchtherm.4
 _qat.4=		qat.4
 _rr232x.4=	rr232x.4
 _speaker.4=	speaker.4
 _spkr.4=	spkr.4
 _superio.4=	superio.4
 _tpm.4=		tpm.4
 _urtw.4=	urtw.4
 _viawd.4=	viawd.4
 _virtio.4=	virtio.4
 _virtio_balloon.4=virtio_balloon.4
 _virtio_blk.4=	virtio_blk.4
 _virtio_console.4=virtio_console.4
 _virtio_random.4= virtio_random.4
 _virtio_scsi.4= virtio_scsi.4
 _vmci.4=	vmci.4
 _vmx.4=		vmx.4
 _vtnet.4=	vtnet.4
 _wbwd.4=	wbwd.4
 _wpi.4=		wpi.4
 _xen.4=		xen.4
 _xnb.4=		xnb.4
 
 .endif
 
 .if ${MACHINE_CPUARCH} == "amd64"
 _ioat.4=	ioat.4
 _nvdimm.4=	nvdimm.4
 _qlxge.4=	qlxge.4
 _qlxgb.4=	qlxgb.4
 _qlxgbe.4=	qlxgbe.4
 _qlnxe.4=	qlnxe.4
 _sfxge.4=	sfxge.4
 _smartpqi.4=	smartpqi.4
 _sume.4=	sume.4
 _vmd.4=		vmd.4
 
 MLINKS+=qlxge.4 if_qlxge.4
 MLINKS+=qlxgb.4 if_qlxgb.4
 MLINKS+=qlxgbe.4 if_qlxgbe.4
 MLINKS+=qlnxe.4 if_qlnxe.4
 MLINKS+=sfxge.4 if_sfxge.4
 MLINKS+=sume.4 if_sume.4
 
 .if ${MK_BHYVE} != "no"
 _bhyve.4=	bhyve.4
 _vmm.4=		vmm.4
 .endif
 .endif
 
 .if ${MACHINE_CPUARCH} == "mips"
 _nvram2env.4=	nvram2env.4
 .endif
 
 .if ${MACHINE_CPUARCH} == "powerpc"
 _if_vtnet.4=    if_vtnet.4
 _nvd.4= 	nvd.4
 _nvme.4=	nvme.4
 _virtio.4=	virtio.4
 _virtio_balloon.4=virtio_balloon.4
 _virtio_blk.4=	virtio_blk.4
 _virtio_console.4=virtio_console.4
 _virtio_random.4= virtio_random.4
 _virtio_scsi.4=	virtio_scsi.4
 _vtnet.4=	vtnet.4
 .endif
 
 .if ${MACHINE_CPUARCH} == "arm" || ${MACHINE_CPUARCH} == "aarch64" || \
 	 ${MACHINE_CPUARCH} == "riscv"
 _cgem.4=	cgem.4
 MLINKS+=cgem.4 if_cgem.4
 .endif
 
 .if empty(MAN_ARCH)
 __arches=	${MACHINE} ${MACHINE_ARCH} ${MACHINE_CPUARCH}
 .elif ${MAN_ARCH} == "all"
 __arches=	${:!/bin/sh -c "/bin/ls -d ${.CURDIR}/man4.*"!:E}
 .else
 __arches=	${MAN_ARCH}
 .endif
 .for __arch in ${__arches:O:u}
 .if exists(${.CURDIR}/man4.${__arch})
 SUBDIR+=	man4.${__arch}
 .endif
 .endfor
 
 .if ${MK_BLUETOOTH} != "no"
 MAN+=		ng_bluetooth.4
 .endif
 
 .if ${MK_CCD} != "no"
 _ccd.4=		ccd.4
 .endif
 
 .if ${MK_CDDL} != "no"
 _dtrace_provs=	dtrace_audit.4 \
 		dtrace_io.4 \
 		dtrace_ip.4 \
 		dtrace_lockstat.4 \
 		dtrace_proc.4 \
 		dtrace_sched.4 \
 		dtrace_sctp.4 \
 		dtrace_tcp.4 \
 		dtrace_udp.4 \
 		dtrace_udplite.4
 
 MLINKS+=	dtrace_audit.4 dtaudit.4
 .endif
 
 .if ${MK_EFI} != "no"
 MAN+=		efidev.4
 
 MLINKS+=	efidev.4 efirtc.4
 .endif
 
 .if ${MK_ISCSI} != "no"
 MAN+=		cfiscsi.4
 MAN+=		iscsi.4
 MAN+=		iscsi_initiator.4
 MAN+=		iser.4
 .endif
 
 .if ${MK_OFED} != "no"
 MAN+=		mlx4ib.4
 MAN+=		mlx5ib.4
 .endif
 
 .if ${MK_MLX5TOOL} != "no"
 MAN+=		mlx5io.4
 .endif
 
 .if ${MK_TESTS} != "no"
 ATF=            ${SRCTOP}/contrib/atf
 .PATH:          ${ATF}/doc
 _atf_test_case.4=	atf-test-case.4
 .endif
 
 .if ${MK_PF} != "no"
 _pf.4=		pf.4
 _pflog.4=	pflog.4
 _pfsync.4=	pfsync.4
 .endif
 
 .if ${MK_USB} != "no"
 MAN+=	\
 	otus.4 \
 	otusfw.4 \
 	rsu.4 \
 	rsufw.4 \
 	rtwn_usb.4 \
 	rum.4 \
 	run.4 \
 	runfw.4 \
 	u3g.4 \
 	uark.4 \
 	uart.4 \
 	uath.4 \
 	ubsa.4 \
 	ubser.4 \
 	ubtbcmfw.4 \
 	uchcom.4 \
 	ucom.4 \
 	ucycom.4 \
 	udav.4 \
 	udbp.4 \
 	udl.4 \
 	uep.4 \
 	ufoma.4 \
 	uftdi.4 \
 	ugen.4 \
 	ugold.4 \
 	uhci.4 \
 	uhid.4 \
 	uhso.4 \
 	uipaq.4 \
 	ukbd.4 \
 	uled.4 \
 	ulpt.4 \
 	umass.4 \
 	umcs.4 \
 	umct.4 \
 	umodem.4 \
 	umoscom.4 \
 	ums.4 \
 	unix.4 \
 	upgt.4 \
 	uplcom.4 \
 	ural.4 \
 	urio.4 \
 	urndis.4 \
 	${_urtw.4} \
 	usb.4 \
 	usb_quirk.4 \
 	usb_template.4 \
 	usbhid.4 \
 	usfs.4 \
 	uslcom.4 \
 	uvisor.4 \
 	uvscom.4 \
 	zyd.4
 
 MLINKS+=otus.4 if_otus.4
 MLINKS+=rsu.4 if_rsu.4
 MLINKS+=rtwn_usb.4 if_rtwn_usb.4
 MLINKS+=rum.4 if_rum.4
 MLINKS+=run.4 if_run.4
 MLINKS+=u3g.4 u3gstub.4
 MLINKS+=uath.4 if_uath.4
 MLINKS+=udav.4 if_udav.4
 MLINKS+=upgt.4 if_upgt.4
 MLINKS+=ural.4 if_ural.4
 MLINKS+=urndis.4 if_urndis.4
 MLINKS+=${_urtw.4} ${_if_urtw.4}
 MLINKS+=zyd.4 if_zyd.4
 .endif
 
 .include <bsd.prog.mk>
diff --git a/share/man/man4/man4.powerpc/Makefile b/share/man/man4/man4.powerpc/Makefile
index 6cc248c8fcf3..05c5d4012fe8 100644
--- a/share/man/man4/man4.powerpc/Makefile
+++ b/share/man/man4/man4.powerpc/Makefile
@@ -1,19 +1,20 @@
 # $FreeBSD$
 
 MAN=	adb.4 \
 	akbd.4 \
 	abtn.4 \
 	ams.4 \
 	cuda.4 \
 	dtsec.4 \
 	llan.4 \
+	ofw_console.4 \
 	pmu.4 \
 	powermac_nvram.4 \
 	smu.4 \
 	snd_ai2s.4 \
 	snd_davbus.4 \
 	tsec.4
 
 MANSUBDIR=/powerpc
 
 .include <bsd.prog.mk>
diff --git a/share/man/man4/man4.powerpc/ofw_console.4 b/share/man/man4/man4.powerpc/ofw_console.4
new file mode 100644
index 000000000000..eb73235c4970
--- /dev/null
+++ b/share/man/man4/man4.powerpc/ofw_console.4
@@ -0,0 +1,111 @@
+.\"-
+.\" Copyright (c) 2001 Miodrag Vallat.
+.\" Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistribution of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\"	from: OpenBSD: pcons.4,v 1.4 2003/06/02 16:16:26 miod Exp
+.\" $FreeBSD$
+.\"
+.Dd January 16, 2021
+.Dt OFW_CONSOLE 4 powerpc
+.Os
+.Sh NAME
+.Nm ofw_console
+.Nd "Open Firmware console"
+.Sh SYNOPSIS
+.Cd "cpu AIM"
+.Cd "options OFWCONS_POLL_HZ=N"
+.Pp
+.Cd "options KDB"
+.Cd "options DDB"
+.Cd "options ALT_BREAK_TO_DEBUGGER"
+.Sh DESCRIPTION
+The
+.Nm
+driver provides a simple text console,
+using the Open Firmware services for input and output.
+It will use the Open Firmware console devices set via the
+.Va input-device
+and
+.Va output-device
+variables.
+.Pp
+This driver is deprecated and only provided as a fallback console mechanism
+if the real console hardware can not be driven by
+.Fx .
+.Pp
+In case the
+.Nm
+console appears to work too slowly, its responsiveness probably can be improved
+by including
+.Cd "options OFWCONS_POLL_HZ=N" .
+When omitted,
+.Dv OFWCONS_POLL_HZ
+defaults to 4.
+For example, on
+.Tn Sun Ultra 2
+a value of 20 or higher works best.
+Too high values, on the other hand, can cause
+.Nm
+to unnecessarily consume CPU.
+.Sh FILES
+.Bl -tag -width ".Pa /dev/keyboard" -compact
+.It Pa /dev/console
+.It Pa /dev/keyboard
+terminal input device in case the console input device is the keyboard
+.It Pa /dev/screen
+terminal output device in case the console output device is the screen
+.It Pa /dev/tty[a-z]
+terminal device in case both the console input and output device is tty[a-z]
+.El
+.Sh SEE ALSO
+.Xr akbd 4 ,
+.Xr powermac_nvram 4 ,
+.Xr vt 4
+.Sh HISTORY
+The
+.Nm
+driver first appeared in
+.Fx 5.0 .
+.Sh AUTHORS
+The
+.Nm
+driver was written by
+.An Benno Rice Aq Mt benno@FreeBSD.org .
+.Sh CAVEATS
+Since the Open Firmware will handle BREAK
+(or Stop-A)
+sequences before
+.Nm ,
+the preferred way to enter
+.Xr ddb 4
+when using
+.Nm
+is to include
+.Cd "options ALT_BREAK_TO_DEBUGGER"
+in a ddb-enabled kernel, and enter the alternate BREAK sequence
+(RETURN TILDE CTRL-b).
+.Sh BUGS
+The
+.Nm
+driver also not attach to the hardware resources it actually talks to.
diff --git a/share/man/man4/openfirm.4 b/share/man/man4/openfirm.4
new file mode 100644
index 000000000000..ef9755d0c49d
--- /dev/null
+++ b/share/man/man4/openfirm.4
@@ -0,0 +1,296 @@
+.\"-
+.\" Copyright (c) 1992, 1993
+.\"	The Regents of the University of California.  All rights reserved.
+.\"
+.\" This software was developed by the Computer Systems Engineering group
+.\" at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and
+.\" contributed to Berkeley.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\"	from: @(#)openprom.4	8.1 (Berkeley) 6/5/93
+.\"	from: OpenBSD: openprom.4,v 1.9 2004/03/22 22:07:21 miod Exp
+.\"
+.\"-
+.\" Copyright (c) 2005 Marius Strobl <marius@FreeBSD.org>
+.\" All rights reserved.
+.\"
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\"
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd January 16, 2021
+.Dt OPENFIRM 4
+.Os
+.Sh NAME
+.Nm openfirm
+.Nd "Open Firmware interface"
+.Sh SYNOPSIS
+.In sys/types.h
+.In sys/ioctl.h
+.In dev/ofw/openfirmio.h
+.Sh DESCRIPTION
+The
+.Pa /dev/openfirm
+device is an interface to the
+.Tn Open Firmware
+device tree.
+This interface is highly stylized.
+It uses
+.Xr ioctl 2
+calls for all operations.
+These calls refer to the nodes in the
+.Tn Open Firmware
+device tree.
+The nodes are represented by package handles,
+which are simply integer values describing data areas.
+Occasionally a package handle of 0 may be used or returned instead,
+as described below.
+.Pp
+The calls that only take and/or return the package handle of a node
+use a pointer to a
+.Vt phandle_t
+for this purpose.
+The others use a pointer to a
+.Vt "struct ofiocdesc"
+descriptor,
+which has the following definition:
+.Bd -literal
+struct ofiocdesc {
+	phandle_t	of_nodeid;
+	int		of_namelen;
+	const char	*of_name;
+	int		of_buflen;
+	char		*of_buf;
+};
+.Ed
+.Pp
+The
+.Va of_nodeid
+member is the package handle of the node that is passed in or returned.
+Strings are passed in via the
+.Va of_name
+member of
+.Va of_namelen
+length.
+The maximum accepted length of
+.Va of_name
+is
+.Dv OFIOCMAXNAME .
+The
+.Va of_buf
+member is used to return strings except for the
+.Dv OFIOCSET
+call where it is also used to pass in a string.
+In the latter case the maximum accepted length of
+.Va of_buf
+is
+.Dv OFIOCMAXVALUE .
+Generally,
+.Va of_buf
+works in a value-result fashion.
+At entry to the
+.Xr ioctl 2
+call,
+.Va of_buflen
+is expected to reflect the buffer size.
+On return,
+.Va of_buflen
+is updated to reflect the buffer contents.
+.Pp
+The following
+.Xr ioctl 2
+calls are supported:
+.Bl -tag -width ".Dv OFIOCGETOPTNODE"
+.It Dv OFIOCGETOPTNODE
+Uses a
+.Vt phandle_t .
+Takes nothing and returns the package handle of the
+.Pa /options
+node.
+.It Dv OFIOCGETNEXT
+Uses a
+.Vt phandle_t .
+Takes the package handle of a node and returns the package handle of the next
+node in the
+.Tn Open Firmware
+device tree.
+The node following the last node has a package handle of 0.
+The node following the node with the package handle of 0 is the first node.
+.It Dv OFIOCGETCHILD
+Uses a
+.Vt phandle_t .
+Takes the package handle of a node and returns the package handle of the first
+child of that node.
+This child may have siblings.
+These can be determined by using
+.Dv OFIOCGETNEXT .
+If the node does not have a child,
+a package handle of 0 is returned.
+.It Dv OFIOCGET
+Uses a
+.Vt "struct ofiocdesc" .
+Takes the package handle of a node and the name of a property.
+Returns the property value and its length.
+If no such property is associated with that node,
+the length of the value is set to \-1.
+If the named property exists but has no value,
+the length of the value is set to 0.
+.It Dv OFIOCGETPROPLEN
+Uses a
+.Vt "struct ofiocdesc" .
+Takes the package handle of a node and the name of a property.
+Returns the length of the property value.
+This call is the same as
+.Dv OFIOCGET
+except that only the length of the property value is returned.
+It can be used to determine whether a node has a particular property or whether
+a property has a value without the need to provide memory for storing the value.
+.It Dv OFIOCSET
+Uses a
+.Vt "struct ofiocdesc" .
+Takes the package handle of a node,
+the name of a property and a property value.
+Returns the property value and the length that actually have been written.
+The
+.Tn Open Firmware
+may choose to truncate the value if it is too long or write a valid value
+instead if the given value is invalid for the particular property.
+Therefore the returned value should be checked.
+The
+.Tn Open Firmware
+may also completely refuse to write the given value to the property.
+In this case
+.Er EINVAL
+is returned.
+.It Dv OFIOCNEXTPROP
+Uses a
+.Vt "struct ofiocdesc" .
+Takes the package handle of a node and the name of a property.
+Returns the name and the length of the next property of the node.
+If the property referenced by the given name is the last property of the node,
+.Er ENOENT
+is returned.
+.It Dv OFIOCFINDDEVICE
+Uses a
+.Vt "struct ofiocdesc" .
+Takes the name or alias name of a device node.
+Returns package handle of the node.
+If no matching node is found,
+.Er ENOENT
+is returned.
+.El
+.Sh FILES
+.Bl -tag -width ".Pa /dev/openfirm"
+.It Pa /dev/openfirm
+Open Firmware interface node
+.El
+.Sh DIAGNOSTICS
+The following may result in rejection of an operation:
+.Bl -tag -width Er
+.It Bq Er EBADF
+The requested operation requires permissions not specified at the call to
+.Fn open .
+.It Bq Er EINVAL
+The given package handle is not 0 and does not correspond to any valid node,
+or the given package handle is 0 where 0 is not allowed.
+.It Bq Er ENAMETOOLONG
+The given name or value exceeds the maximum allowed length of
+.Dv OFIOCMAXNAME
+and
+.Dv OFIOCMAXVALUE
+bytes respectively.
+.El
+.Sh SEE ALSO
+.Xr ioctl 2 ,
+.Xr ofwdump 8
+.Rs
+.%Q "IEEE Standards Organization"
+.%B "IEEE Std 1275-1994:"
+.%B "IEEE Standard for Boot Firmware (Initialization Configuration) Firmware:"
+.%B Core Requirements and Practices"
+.%O ISBN 1-55937-426-8
+.Re
+.Sh HISTORY
+The
+.Nm
+interface first appeared in
+.Nx 1.6 .
+The first
+.Fx
+version to include it was
+.Fx 5.0 .
+.Sh AUTHORS
+.An -nosplit
+The
+.Nm
+interface was ported to
+.Fx
+by
+.An Thomas Moestl Aq Mt tmm@FreeBSD.org .
+This manual page was written by
+.An Marius Strobl Aq Mt marius@FreeBSD.org
+based on the
+.Ox
+manual page for
+.Xr openprom 4 .
+.Sh CAVEATS
+Due to limitations within
+.Tn Open Firmware
+itself,
+these functions run at elevated priority and may adversely affect system
+performance.
+.Pp
+For at least the
+.Pa /options
+node the property value passed in to the
+.Dv OFIOCSET
+call has to be null-terminated and the value length passed in has to include
+the terminating
+.Ql \e0 .
+However, as with the
+.Dv OFIOCGET
+call,
+the returned value length does not include the terminating
+.Ql \e0 .