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Differential D10565 Diff 28189 head/sys/dev/hyperv/vmbus/vmbus.c

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head/sys/dev/hyperv/vmbus/vmbus.c

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#define VMBUS_GPADL_START 0xe1e10 #define VMBUS_GPADL_START 0xe1e10
struct vmbus_msghc { struct vmbus_msghc {
struct vmbus_xact *mh_xact; struct vmbus_xact *mh_xact;
struct hypercall_postmsg_in mh_inprm_save; struct hypercall_postmsg_in mh_inprm_save;
}; };
static void vmbus_identify(driver_t *, device_t);
static int vmbus_probe(device_t); static int vmbus_probe(device_t);
static int vmbus_attach(device_t); static int vmbus_attach(device_t);
static int vmbus_detach(device_t); static int vmbus_detach(device_t);
static int vmbus_read_ivar(device_t, device_t, int, static int vmbus_read_ivar(device_t, device_t, int,
uintptr_t *); uintptr_t *);
static int vmbus_child_pnpinfo_str(device_t, device_t, static int vmbus_child_pnpinfo_str(device_t, device_t,
char *, size_t); char *, size_t);
static struct resource *vmbus_alloc_resource(device_t dev, static struct resource *vmbus_alloc_resource(device_t dev,
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static const vmbus_chanmsg_proc_t static const vmbus_chanmsg_proc_t
vmbus_chanmsg_handlers[VMBUS_CHANMSG_TYPE_MAX] = { vmbus_chanmsg_handlers[VMBUS_CHANMSG_TYPE_MAX] = {
VMBUS_CHANMSG_PROC(CHOFFER_DONE, vmbus_scan_done), VMBUS_CHANMSG_PROC(CHOFFER_DONE, vmbus_scan_done),
VMBUS_CHANMSG_PROC_WAKEUP(CONNECT_RESP) VMBUS_CHANMSG_PROC_WAKEUP(CONNECT_RESP)
}; };
static device_method_t vmbus_methods[] = { static device_method_t vmbus_methods[] = {
/* Device interface */ /* Device interface */
DEVMETHOD(device_identify, vmbus_identify),
DEVMETHOD(device_probe, vmbus_probe), DEVMETHOD(device_probe, vmbus_probe),
DEVMETHOD(device_attach, vmbus_attach), DEVMETHOD(device_attach, vmbus_attach),
DEVMETHOD(device_detach, vmbus_detach), DEVMETHOD(device_detach, vmbus_detach),
DEVMETHOD(device_shutdown, bus_generic_shutdown), DEVMETHOD(device_shutdown, bus_generic_shutdown),
DEVMETHOD(device_suspend, bus_generic_suspend), DEVMETHOD(device_suspend, bus_generic_suspend),
DEVMETHOD(device_resume, bus_generic_resume), DEVMETHOD(device_resume, bus_generic_resume),
/* Bus interface */ /* Bus interface */
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static driver_t vmbus_driver = { static driver_t vmbus_driver = {
"vmbus", "vmbus",
vmbus_methods, vmbus_methods,
sizeof(struct vmbus_softc) sizeof(struct vmbus_softc)
}; };
static devclass_t vmbus_devclass; static devclass_t vmbus_devclass;
DRIVER_MODULE(vmbus, acpi, vmbus_driver, vmbus_devclass, NULL, NULL); DRIVER_MODULE(vmbus, pcib, vmbus_driver, vmbus_devclass, NULL, NULL);
DRIVER_MODULE(vmbus, acpi_syscontainer, vmbus_driver, vmbus_devclass,
NULL, NULL);
MODULE_DEPEND(vmbus, acpi, 1, 1, 1); MODULE_DEPEND(vmbus, acpi, 1, 1, 1);
MODULE_DEPEND(vmbus, pci, 1, 1, 1); MODULE_DEPEND(vmbus, pci, 1, 1, 1);
MODULE_VERSION(vmbus, 1); MODULE_VERSION(vmbus, 1);
static __inline struct vmbus_softc * static __inline struct vmbus_softc *
vmbus_get_softc(void) vmbus_get_softc(void)
{ {
return vmbus_sc; return vmbus_sc;
▲ Show 20 Lines • Show All 859 Lines • ▼ Show 20 Lines#endif
{ {
res = BUS_ALLOC_RESOURCE(parent, child, type, rid, start, res = BUS_ALLOC_RESOURCE(parent, child, type, rid, start,
end, count, flags); end, count, flags);
} }
return (res); return (res);
} }
static device_t
get_nexus(device_t vmbus)
{
device_t acpi = device_get_parent(vmbus);
device_t nexus = device_get_parent(acpi);
return (nexus);
}
static int static int
vmbus_alloc_msi(device_t bus, device_t dev, int count, int maxcount, int *irqs) vmbus_alloc_msi(device_t bus, device_t dev, int count, int maxcount, int *irqs)
{ {
return (PCIB_ALLOC_MSI(get_nexus(bus), dev, count, maxcount, irqs));
return (PCIB_ALLOC_MSI(device_get_parent(bus), dev, count, maxcount,
irqs));
} }
static int static int
vmbus_release_msi(device_t bus, device_t dev, int count, int *irqs) vmbus_release_msi(device_t bus, device_t dev, int count, int *irqs)
{ {
return (PCIB_RELEASE_MSI(get_nexus(bus), dev, count, irqs));
return (PCIB_RELEASE_MSI(device_get_parent(bus), dev, count, irqs));
} }
static int static int
vmbus_alloc_msix(device_t bus, device_t dev, int *irq) vmbus_alloc_msix(device_t bus, device_t dev, int *irq)
{ {
return (PCIB_ALLOC_MSIX(get_nexus(bus), dev, irq));
return (PCIB_ALLOC_MSIX(device_get_parent(bus), dev, irq));
} }
static int static int
vmbus_release_msix(device_t bus, device_t dev, int irq) vmbus_release_msix(device_t bus, device_t dev, int irq)
{ {
return (PCIB_RELEASE_MSIX(get_nexus(bus), dev, irq));
return (PCIB_RELEASE_MSIX(device_get_parent(bus), dev, irq));
} }
static int static int
vmbus_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr, vmbus_map_msi(device_t bus, device_t dev, int irq, uint64_t *addr,
uint32_t *data) uint32_t *data)
{ {
return (PCIB_MAP_MSI(get_nexus(bus), dev, irq, addr, data));
return (PCIB_MAP_MSI(device_get_parent(bus), dev, irq, addr, data));
} }
static uint32_t static uint32_t
vmbus_get_version_method(device_t bus, device_t dev) vmbus_get_version_method(device_t bus, device_t dev)
{ {
struct vmbus_softc *sc = device_get_softc(bus); struct vmbus_softc *sc = device_get_softc(bus);
return sc->vmbus_version; return sc->vmbus_version;
▲ Show 20 Lines • Show All 97 Lines • ▼ Show 20 Linesvmbus_get_crs(device_t dev, device_t vmbus_dev, enum parse_pass pass)
if (bootverbose && ACPI_FAILURE(status)) if (bootverbose && ACPI_FAILURE(status))
device_printf(dev, "_CRS: not found, pass=%d\n", pass); device_printf(dev, "_CRS: not found, pass=%d\n", pass);
} }
static void static void
vmbus_get_mmio_res_pass(device_t dev, enum parse_pass pass) vmbus_get_mmio_res_pass(device_t dev, enum parse_pass pass)
{ {
device_t acpi0, pcib0 = NULL; device_t acpi0, parent;
device_t *children;
int i, count;
/* Try to find _CRS on VMBus device */ parent = device_get_parent(dev);
vmbus_get_crs(dev, dev, pass);
/* Try to find _CRS on VMBus device's parent */ acpi0 = device_get_parent(parent);
acpi0 = device_get_parent(dev); if (strcmp("acpi0", device_get_nameunit(acpi0)) == 0) {
vmbus_get_crs(acpi0, dev, pass); device_t *children;
int count;
/* Try to locate pcib0 and find _CRS on it */ /*
if (device_get_children(acpi0, &children, &count) != 0) * Try to locate VMBUS resources and find _CRS on them.
return; */
if (device_get_children(acpi0, &children, &count) == 0) {
int i;
for (i = 0; i < count; i++) { for (i = 0; i < count; ++i) {
if (!device_is_attached(children[i])) if (!device_is_attached(children[i]))
continue; continue;
if (strcmp("pcib0", device_get_nameunit(children[i]))) if (strcmp("vmbus_res",
continue; device_get_name(children[i])) == 0)
vmbus_get_crs(children[i], dev, pass);
}
free(children, M_TEMP);
}
pcib0 = children[i]; /*
break; * Try to find _CRS on acpi.
*/
vmbus_get_crs(acpi0, dev, pass);
} else {
device_printf(dev, "not grandchild of acpi\n");
} }
if (pcib0) /*
vmbus_get_crs(pcib0, dev, pass); * Try to find _CRS on parent.
*/
free(children, M_TEMP); vmbus_get_crs(parent, dev, pass);
} }
static void static void
vmbus_get_mmio_res(device_t dev) vmbus_get_mmio_res(device_t dev)
{ {
struct vmbus_softc *sc = device_get_softc(dev); struct vmbus_softc *sc = device_get_softc(dev);
/* /*
* We walk the resources twice to make sure that: in the resource * We walk the resources twice to make sure that: in the resource
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vmbus_free_mmio_res(device_t dev) vmbus_free_mmio_res(device_t dev)
{ {
struct vmbus_softc *sc = device_get_softc(dev); struct vmbus_softc *sc = device_get_softc(dev);
pcib_host_res_free(dev, &sc->vmbus_mmio_res); pcib_host_res_free(dev, &sc->vmbus_mmio_res);
} }
#endif /* NEW_PCIB */ #endif /* NEW_PCIB */
static void
vmbus_identify(driver_t *driver, device_t parent)
{
if (device_get_unit(parent) != 0 || vm_guest != VM_GUEST_HV ||
(hyperv_features & CPUID_HV_MSR_SYNIC) == 0)
return;
device_add_child(parent, "vmbus", -1);
}
static int static int
vmbus_probe(device_t dev) vmbus_probe(device_t dev)
{ {
char *id[] = { "VMBUS", NULL };
if (ACPI_ID_PROBE(device_get_parent(dev), dev, id) == NULL || if (device_get_unit(dev) != 0 || vm_guest != VM_GUEST_HV ||
device_get_unit(dev) != 0 || vm_guest != VM_GUEST_HV ||
(hyperv_features & CPUID_HV_MSR_SYNIC) == 0) (hyperv_features & CPUID_HV_MSR_SYNIC) == 0)
return (ENXIO); return (ENXIO);
device_set_desc(dev, "Hyper-V Vmbus"); device_set_desc(dev, "Hyper-V Vmbus");
return (BUS_PROBE_DEFAULT); return (BUS_PROBE_DEFAULT);
} }
/** /**
* @brief Main vmbus driver initialization routine. * @brief Main vmbus driver initialization routine.
* *
* Here, we * Here, we
* - initialize the vmbus driver context * - initialize the vmbus driver context
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