diff --git a/sys/dev/vmd/vmd.c b/sys/dev/vmd/vmd.c
index 078101b58b2d..774f3991d6b3 100644
--- a/sys/dev/vmd/vmd.c
+++ b/sys/dev/vmd/vmd.c
@@ -1,688 +1,690 @@
/*-
* SPDX-License-Identifier: BSD-2-Clause
*
* Copyright (c) 2021 Alexander Motin <mav@FreeBSD.org>
* Copyright 2019 Cisco Systems, Inc.
* 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 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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/bus.h>
#include <sys/conf.h>
#include <sys/kernel.h>
#include <sys/limits.h>
#include <sys/module.h>
#include <sys/sysctl.h>
#include <sys/systm.h>
#include <sys/malloc.h>
#include <machine/bus.h>
#include <machine/resource.h>
#include <machine/intr_machdep.h>
#include <sys/rman.h>
#include <sys/lock.h>
#include <sys/mutex.h>
#include <sys/pciio.h>
#include <dev/pci/pcivar.h>
#include <dev/pci/pcireg.h>
#include <dev/pci/pci_private.h>
#include <dev/pci/pcib_private.h>
#include <dev/vmd/vmd.h>
#include "pcib_if.h"
struct vmd_type {
u_int16_t vmd_vid;
u_int16_t vmd_did;
char *vmd_name;
int flags;
#define BUS_RESTRICT 1
#define VECTOR_OFFSET 2
#define CAN_BYPASS_MSI 4
};
#define VMD_CAP 0x40
#define VMD_BUS_RESTRICT 0x1
#define VMD_CONFIG 0x44
#define VMD_BYPASS_MSI 0x2
#define VMD_BUS_START(x) ((x >> 8) & 0x3)
#define VMD_LOCK 0x70
SYSCTL_NODE(_hw, OID_AUTO, vmd, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
"Intel Volume Management Device tuning parameters");
/*
* By default all VMD devices remap children MSI/MSI-X interrupts into their
* own. It creates additional isolation, but also complicates things due to
* sharing, etc. Fortunately some VMD devices can bypass the remapping.
*/
static int vmd_bypass_msi = 1;
SYSCTL_INT(_hw_vmd, OID_AUTO, bypass_msi, CTLFLAG_RWTUN, &vmd_bypass_msi, 0,
"Bypass MSI remapping on capable hardware");
/*
* All MSIs within a group share address, so VMD can't distinguish them.
* It makes no sense to use more than one per device, only if required by
* some specific device drivers.
*/
static int vmd_max_msi = 1;
SYSCTL_INT(_hw_vmd, OID_AUTO, max_msi, CTLFLAG_RWTUN, &vmd_max_msi, 0,
"Maximum number of MSI vectors per device");
/*
* MSI-X can use different addresses, but we have limited number of MSI-X
* we can route to, so use conservative default to try to avoid sharing.
*/
static int vmd_max_msix = 3;
SYSCTL_INT(_hw_vmd, OID_AUTO, max_msix, CTLFLAG_RWTUN, &vmd_max_msix, 0,
"Maximum number of MSI-X vectors per device");
static struct vmd_type vmd_devs[] = {
{ 0x8086, 0x201d, "Intel Volume Management Device", 0 },
{ 0x8086, 0x28c0, "Intel Volume Management Device", BUS_RESTRICT | CAN_BYPASS_MSI },
{ 0x8086, 0x467f, "Intel Volume Management Device", BUS_RESTRICT | VECTOR_OFFSET },
{ 0x8086, 0x4c3d, "Intel Volume Management Device", BUS_RESTRICT | VECTOR_OFFSET },
+ { 0x8086, 0x7d0b, "Intel Volume Management Device", BUS_RESTRICT | VECTOR_OFFSET },
{ 0x8086, 0x9a0b, "Intel Volume Management Device", BUS_RESTRICT | VECTOR_OFFSET },
{ 0x8086, 0xa77f, "Intel Volume Management Device", BUS_RESTRICT | VECTOR_OFFSET },
+ { 0x8086, 0xad0b, "Intel Volume Management Device", BUS_RESTRICT | VECTOR_OFFSET },
{ 0, 0, NULL, 0 }
};
static int
vmd_probe(device_t dev)
{
struct vmd_type *t;
uint16_t vid, did;
vid = pci_get_vendor(dev);
did = pci_get_device(dev);
for (t = vmd_devs; t->vmd_name != NULL; t++) {
if (vid == t->vmd_vid && did == t->vmd_did) {
device_set_desc(dev, t->vmd_name);
return (BUS_PROBE_DEFAULT);
}
}
return (ENXIO);
}
static void
vmd_free(struct vmd_softc *sc)
{
struct vmd_irq *vi;
struct vmd_irq_user *u;
int i;
if (sc->psc.bus.rman.rm_end != 0)
rman_fini(&sc->psc.bus.rman);
if (sc->psc.mem.rman.rm_end != 0)
rman_fini(&sc->psc.mem.rman);
while ((u = LIST_FIRST(&sc->vmd_users)) != NULL) {
LIST_REMOVE(u, viu_link);
free(u, M_DEVBUF);
}
if (sc->vmd_irq != NULL) {
for (i = 0; i < sc->vmd_msix_count; i++) {
vi = &sc->vmd_irq[i];
if (vi->vi_res == NULL)
continue;
bus_teardown_intr(sc->psc.dev, vi->vi_res,
vi->vi_handle);
bus_release_resource(sc->psc.dev, SYS_RES_IRQ,
vi->vi_rid, vi->vi_res);
}
}
free(sc->vmd_irq, M_DEVBUF);
sc->vmd_irq = NULL;
pci_release_msi(sc->psc.dev);
for (i = 0; i < VMD_MAX_BAR; i++) {
if (sc->vmd_regs_res[i] != NULL)
bus_release_resource(sc->psc.dev, SYS_RES_MEMORY,
sc->vmd_regs_rid[i], sc->vmd_regs_res[i]);
}
}
/* Hidden PCI Roots are hidden in BAR(0). */
static uint32_t
vmd_read_config(device_t dev, u_int b, u_int s, u_int f, u_int reg, int width)
{
struct vmd_softc *sc;
bus_addr_t offset;
sc = device_get_softc(dev);
if (b < sc->vmd_bus_start || b > sc->vmd_bus_end)
return (0xffffffff);
offset = ((b - sc->vmd_bus_start) << 20) + (s << 15) + (f << 12) + reg;
switch (width) {
case 4:
return (bus_space_read_4(sc->vmd_btag, sc->vmd_bhandle,
offset));
case 2:
return (bus_space_read_2(sc->vmd_btag, sc->vmd_bhandle,
offset));
case 1:
return (bus_space_read_1(sc->vmd_btag, sc->vmd_bhandle,
offset));
default:
__assert_unreachable();
return (0xffffffff);
}
}
static void
vmd_write_config(device_t dev, u_int b, u_int s, u_int f, u_int reg,
uint32_t val, int width)
{
struct vmd_softc *sc;
bus_addr_t offset;
sc = device_get_softc(dev);
if (b < sc->vmd_bus_start || b > sc->vmd_bus_end)
return;
offset = ((b - sc->vmd_bus_start) << 20) + (s << 15) + (f << 12) + reg;
switch (width) {
case 4:
return (bus_space_write_4(sc->vmd_btag, sc->vmd_bhandle,
offset, val));
case 2:
return (bus_space_write_2(sc->vmd_btag, sc->vmd_bhandle,
offset, val));
case 1:
return (bus_space_write_1(sc->vmd_btag, sc->vmd_bhandle,
offset, val));
default:
__assert_unreachable();
}
}
static void
vmd_set_msi_bypass(device_t dev, bool enable)
{
uint16_t val;
val = pci_read_config(dev, VMD_CONFIG, 2);
if (enable)
val |= VMD_BYPASS_MSI;
else
val &= ~VMD_BYPASS_MSI;
pci_write_config(dev, VMD_CONFIG, val, 2);
}
static int
vmd_intr(void *arg)
{
/*
* We have nothing to do here, but we have to register some interrupt
* handler to make PCI code setup and enable the MSI-X vector.
*/
return (FILTER_STRAY);
}
static int
vmd_attach(device_t dev)
{
struct vmd_softc *sc;
struct pcib_secbus *bus;
struct pcib_window *w;
struct vmd_type *t;
struct vmd_irq *vi;
uint16_t vid, did;
uint32_t bar;
int i, j, error;
char buf[64];
sc = device_get_softc(dev);
bzero(sc, sizeof(*sc));
sc->psc.dev = dev;
sc->psc.domain = PCI_DOMAINMAX - device_get_unit(dev);
pci_enable_busmaster(dev);
for (i = 0, j = 0; i < VMD_MAX_BAR; i++, j++) {
sc->vmd_regs_rid[i] = PCIR_BAR(j);
bar = pci_read_config(dev, PCIR_BAR(0), 4);
if (PCI_BAR_MEM(bar) && (bar & PCIM_BAR_MEM_TYPE) ==
PCIM_BAR_MEM_64)
j++;
if ((sc->vmd_regs_res[i] = bus_alloc_resource_any(dev,
SYS_RES_MEMORY, &sc->vmd_regs_rid[i], RF_ACTIVE)) == NULL) {
device_printf(dev, "Cannot allocate resources\n");
goto fail;
}
}
sc->vmd_btag = rman_get_bustag(sc->vmd_regs_res[0]);
sc->vmd_bhandle = rman_get_bushandle(sc->vmd_regs_res[0]);
vid = pci_get_vendor(dev);
did = pci_get_device(dev);
for (t = vmd_devs; t->vmd_name != NULL; t++) {
if (vid == t->vmd_vid && did == t->vmd_did)
break;
}
sc->vmd_bus_start = 0;
if ((t->flags & BUS_RESTRICT) &&
(pci_read_config(dev, VMD_CAP, 2) & VMD_BUS_RESTRICT)) {
switch (VMD_BUS_START(pci_read_config(dev, VMD_CONFIG, 2))) {
case 0:
sc->vmd_bus_start = 0;
break;
case 1:
sc->vmd_bus_start = 128;
break;
case 2:
sc->vmd_bus_start = 224;
break;
default:
device_printf(dev, "Unknown bus offset\n");
goto fail;
}
}
sc->vmd_bus_end = MIN(PCI_BUSMAX, sc->vmd_bus_start +
(rman_get_size(sc->vmd_regs_res[0]) >> 20) - 1);
bus = &sc->psc.bus;
bus->sec = sc->vmd_bus_start;
bus->sub = sc->vmd_bus_end;
bus->dev = dev;
bus->rman.rm_start = 0;
bus->rman.rm_end = PCI_BUSMAX;
bus->rman.rm_type = RMAN_ARRAY;
snprintf(buf, sizeof(buf), "%s bus numbers", device_get_nameunit(dev));
bus->rman.rm_descr = strdup(buf, M_DEVBUF);
error = rman_init(&bus->rman);
if (error) {
device_printf(dev, "Failed to initialize bus rman\n");
bus->rman.rm_end = 0;
goto fail;
}
error = rman_manage_region(&bus->rman, sc->vmd_bus_start,
sc->vmd_bus_end);
if (error) {
device_printf(dev, "Failed to add resource to bus rman\n");
goto fail;
}
w = &sc->psc.mem;
w->rman.rm_type = RMAN_ARRAY;
snprintf(buf, sizeof(buf), "%s memory window", device_get_nameunit(dev));
w->rman.rm_descr = strdup(buf, M_DEVBUF);
error = rman_init(&w->rman);
if (error) {
device_printf(dev, "Failed to initialize memory rman\n");
w->rman.rm_end = 0;
goto fail;
}
error = rman_manage_region(&w->rman,
rman_get_start(sc->vmd_regs_res[1]),
rman_get_end(sc->vmd_regs_res[1]));
if (error) {
device_printf(dev, "Failed to add resource to memory rman\n");
goto fail;
}
error = rman_manage_region(&w->rman,
rman_get_start(sc->vmd_regs_res[2]) + 0x2000,
rman_get_end(sc->vmd_regs_res[2]));
if (error) {
device_printf(dev, "Failed to add resource to memory rman\n");
goto fail;
}
LIST_INIT(&sc->vmd_users);
sc->vmd_fist_vector = (t->flags & VECTOR_OFFSET) ? 1 : 0;
sc->vmd_msix_count = pci_msix_count(dev);
if (vmd_bypass_msi && (t->flags & CAN_BYPASS_MSI)) {
sc->vmd_msix_count = 0;
vmd_set_msi_bypass(dev, true);
} else if (pci_alloc_msix(dev, &sc->vmd_msix_count) == 0) {
sc->vmd_irq = malloc(sizeof(struct vmd_irq) *
sc->vmd_msix_count, M_DEVBUF, M_WAITOK | M_ZERO);
for (i = 0; i < sc->vmd_msix_count; i++) {
vi = &sc->vmd_irq[i];
vi->vi_rid = i + 1;
vi->vi_res = bus_alloc_resource_any(dev, SYS_RES_IRQ,
&vi->vi_rid, RF_ACTIVE | RF_SHAREABLE);
if (vi->vi_res == NULL) {
device_printf(dev, "Failed to allocate irq\n");
goto fail;
}
vi->vi_irq = rman_get_start(vi->vi_res);
if (bus_setup_intr(dev, vi->vi_res, INTR_TYPE_MISC |
INTR_MPSAFE, vmd_intr, NULL, vi, &vi->vi_handle)) {
device_printf(dev, "Can't set up interrupt\n");
bus_release_resource(dev, SYS_RES_IRQ,
vi->vi_rid, vi->vi_res);
vi->vi_res = NULL;
goto fail;
}
}
vmd_set_msi_bypass(dev, false);
}
sc->vmd_dma_tag = bus_get_dma_tag(dev);
sc->psc.child = device_add_child(dev, "pci", -1);
return (bus_generic_attach(dev));
fail:
vmd_free(sc);
return (ENXIO);
}
static int
vmd_detach(device_t dev)
{
struct vmd_softc *sc = device_get_softc(dev);
int error;
error = bus_generic_detach(dev);
if (error)
return (error);
error = device_delete_children(dev);
if (error)
return (error);
if (sc->vmd_msix_count == 0)
vmd_set_msi_bypass(dev, false);
vmd_free(sc);
return (0);
}
static bus_dma_tag_t
vmd_get_dma_tag(device_t dev, device_t child)
{
struct vmd_softc *sc = device_get_softc(dev);
return (sc->vmd_dma_tag);
}
static struct resource *
vmd_alloc_resource(device_t dev, device_t child, int type, int *rid,
rman_res_t start, rman_res_t end, rman_res_t count, u_int flags)
{
struct vmd_softc *sc = device_get_softc(dev);
struct resource *res;
switch (type) {
case SYS_RES_IRQ:
/* VMD harwdare does not support legacy interrupts. */
if (*rid == 0)
return (NULL);
return (bus_generic_alloc_resource(dev, child, type, rid,
start, end, count, flags | RF_SHAREABLE));
case SYS_RES_MEMORY:
res = rman_reserve_resource(&sc->psc.mem.rman, start, end,
count, flags, child);
if (res == NULL)
return (NULL);
if (bootverbose)
device_printf(dev,
"allocated memory range (%#jx-%#jx) for rid %d of %s\n",
rman_get_start(res), rman_get_end(res), *rid,
pcib_child_name(child));
break;
case PCI_RES_BUS:
res = rman_reserve_resource(&sc->psc.bus.rman, start, end,
count, flags, child);
if (res == NULL)
return (NULL);
if (bootverbose)
device_printf(dev,
"allocated bus range (%ju-%ju) for rid %d of %s\n",
rman_get_start(res), rman_get_end(res), *rid,
pcib_child_name(child));
break;
default:
/* VMD harwdare does not support I/O ports. */
return (NULL);
}
rman_set_rid(res, *rid);
return (res);
}
static int
vmd_adjust_resource(device_t dev, device_t child, int type,
struct resource *r, rman_res_t start, rman_res_t end)
{
if (type == SYS_RES_IRQ) {
return (bus_generic_adjust_resource(dev, child, type, r,
start, end));
}
return (rman_adjust_resource(r, start, end));
}
static int
vmd_release_resource(device_t dev, device_t child, int type, int rid,
struct resource *r)
{
if (type == SYS_RES_IRQ) {
return (bus_generic_release_resource(dev, child, type, rid,
r));
}
return (rman_release_resource(r));
}
static int
vmd_route_interrupt(device_t dev, device_t child, int pin)
{
/* VMD harwdare does not support legacy interrupts. */
return (PCI_INVALID_IRQ);
}
static int
vmd_alloc_msi(device_t dev, device_t child, int count, int maxcount,
int *irqs)
{
struct vmd_softc *sc = device_get_softc(dev);
struct vmd_irq_user *u;
int i, ibest = 0, best = INT_MAX;
if (sc->vmd_msix_count == 0) {
return (PCIB_ALLOC_MSI(device_get_parent(device_get_parent(dev)),
child, count, maxcount, irqs));
}
if (count > vmd_max_msi)
return (ENOSPC);
LIST_FOREACH(u, &sc->vmd_users, viu_link) {
if (u->viu_child == child)
return (EBUSY);
}
for (i = sc->vmd_fist_vector; i < sc->vmd_msix_count; i++) {
if (best > sc->vmd_irq[i].vi_nusers) {
best = sc->vmd_irq[i].vi_nusers;
ibest = i;
}
}
u = malloc(sizeof(*u), M_DEVBUF, M_WAITOK | M_ZERO);
u->viu_child = child;
u->viu_vector = ibest;
LIST_INSERT_HEAD(&sc->vmd_users, u, viu_link);
sc->vmd_irq[ibest].vi_nusers += count;
for (i = 0; i < count; i++)
irqs[i] = sc->vmd_irq[ibest].vi_irq;
return (0);
}
static int
vmd_release_msi(device_t dev, device_t child, int count, int *irqs)
{
struct vmd_softc *sc = device_get_softc(dev);
struct vmd_irq_user *u;
if (sc->vmd_msix_count == 0) {
return (PCIB_RELEASE_MSI(device_get_parent(device_get_parent(dev)),
child, count, irqs));
}
LIST_FOREACH(u, &sc->vmd_users, viu_link) {
if (u->viu_child == child) {
sc->vmd_irq[u->viu_vector].vi_nusers -= count;
LIST_REMOVE(u, viu_link);
free(u, M_DEVBUF);
return (0);
}
}
return (EINVAL);
}
static int
vmd_alloc_msix(device_t dev, device_t child, int *irq)
{
struct vmd_softc *sc = device_get_softc(dev);
struct vmd_irq_user *u;
int i, ibest = 0, best = INT_MAX;
if (sc->vmd_msix_count == 0) {
return (PCIB_ALLOC_MSIX(device_get_parent(device_get_parent(dev)),
child, irq));
}
i = 0;
LIST_FOREACH(u, &sc->vmd_users, viu_link) {
if (u->viu_child == child)
i++;
}
if (i >= vmd_max_msix)
return (ENOSPC);
for (i = sc->vmd_fist_vector; i < sc->vmd_msix_count; i++) {
if (best > sc->vmd_irq[i].vi_nusers) {
best = sc->vmd_irq[i].vi_nusers;
ibest = i;
}
}
u = malloc(sizeof(*u), M_DEVBUF, M_WAITOK | M_ZERO);
u->viu_child = child;
u->viu_vector = ibest;
LIST_INSERT_HEAD(&sc->vmd_users, u, viu_link);
sc->vmd_irq[ibest].vi_nusers++;
*irq = sc->vmd_irq[ibest].vi_irq;
return (0);
}
static int
vmd_release_msix(device_t dev, device_t child, int irq)
{
struct vmd_softc *sc = device_get_softc(dev);
struct vmd_irq_user *u;
if (sc->vmd_msix_count == 0) {
return (PCIB_RELEASE_MSIX(device_get_parent(device_get_parent(dev)),
child, irq));
}
LIST_FOREACH(u, &sc->vmd_users, viu_link) {
if (u->viu_child == child &&
sc->vmd_irq[u->viu_vector].vi_irq == irq) {
sc->vmd_irq[u->viu_vector].vi_nusers--;
LIST_REMOVE(u, viu_link);
free(u, M_DEVBUF);
return (0);
}
}
return (EINVAL);
}
static int
vmd_map_msi(device_t dev, device_t child, int irq, uint64_t *addr, uint32_t *data)
{
struct vmd_softc *sc = device_get_softc(dev);
int i;
if (sc->vmd_msix_count == 0) {
return (PCIB_MAP_MSI(device_get_parent(device_get_parent(dev)),
child, irq, addr, data));
}
for (i = sc->vmd_fist_vector; i < sc->vmd_msix_count; i++) {
if (sc->vmd_irq[i].vi_irq == irq)
break;
}
if (i >= sc->vmd_msix_count)
return (EINVAL);
*addr = MSI_INTEL_ADDR_BASE | (i << 12);
*data = 0;
return (0);
}
static device_method_t vmd_pci_methods[] = {
/* Device interface */
DEVMETHOD(device_probe, vmd_probe),
DEVMETHOD(device_attach, vmd_attach),
DEVMETHOD(device_detach, vmd_detach),
DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume),
DEVMETHOD(device_shutdown, bus_generic_shutdown),
/* Bus interface */
DEVMETHOD(bus_get_dma_tag, vmd_get_dma_tag),
DEVMETHOD(bus_read_ivar, pcib_read_ivar),
DEVMETHOD(bus_write_ivar, pcib_write_ivar),
DEVMETHOD(bus_alloc_resource, vmd_alloc_resource),
DEVMETHOD(bus_adjust_resource, vmd_adjust_resource),
DEVMETHOD(bus_release_resource, vmd_release_resource),
DEVMETHOD(bus_activate_resource, bus_generic_activate_resource),
DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource),
DEVMETHOD(bus_setup_intr, bus_generic_setup_intr),
DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr),
/* pcib interface */
DEVMETHOD(pcib_maxslots, pcib_maxslots),
DEVMETHOD(pcib_read_config, vmd_read_config),
DEVMETHOD(pcib_write_config, vmd_write_config),
DEVMETHOD(pcib_route_interrupt, vmd_route_interrupt),
DEVMETHOD(pcib_alloc_msi, vmd_alloc_msi),
DEVMETHOD(pcib_release_msi, vmd_release_msi),
DEVMETHOD(pcib_alloc_msix, vmd_alloc_msix),
DEVMETHOD(pcib_release_msix, vmd_release_msix),
DEVMETHOD(pcib_map_msi, vmd_map_msi),
DEVMETHOD(pcib_request_feature, pcib_request_feature_allow),
DEVMETHOD_END
};
DEFINE_CLASS_0(pcib, vmd_pci_driver, vmd_pci_methods, sizeof(struct vmd_softc));
DRIVER_MODULE(vmd, pci, vmd_pci_driver, NULL, NULL);
MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, vmd,
vmd_devs, nitems(vmd_devs) - 1);