openkylin
/
qemu
mirror of https://gitee.com/openkylin/qemu.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

vmw_pvscsi: The pvscsi device is a PCIE endpoint 

Report the 'express endpoint' capability if on a PCIE bus.

Signed-off-by: Shmulik Ladkani <shmulik.ladkani@ravellosystems.com>
Message-Id: <1449994112-7054-6-git-send-email-shmulik.ladkani@ravellosystems.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Shmulik Ladkani 2015-12-13 10:08:31 +02:00 committed by Paolo Bonzini
parent e2d4f3f75b
commit 1dd1305e66
1 changed files with 53 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

54
hw/scsi/vmw_pvscsi.c
View File

@ -50,6 +50,7 @@
typedef struct PVSCSIClass {
PCIDeviceClass parent_class;
DeviceRealize parent_dc_realize;
} PVSCSIClass;
#define TYPE_PVSCSI "pvscsi"
@ -64,11 +65,15 @@ typedef struct PVSCSIClass {
#define PVSCSI_COMPAT_OLD_PCI_CONFIGURATION_BIT 0
#define PVSCSI_COMPAT_OLD_PCI_CONFIGURATION \
(1 << PVSCSI_COMPAT_OLD_PCI_CONFIGURATION_BIT)
#define PVSCSI_COMPAT_DISABLE_PCIE_BIT 1
#define PVSCSI_COMPAT_DISABLE_PCIE \
(1 << PVSCSI_COMPAT_DISABLE_PCIE_BIT)
#define PVSCSI_USE_OLD_PCI_CONFIGURATION(s) \
((s)->compat_flags & PVSCSI_COMPAT_OLD_PCI_CONFIGURATION)
#define PVSCSI_MSI_OFFSET(s) \
(PVSCSI_USE_OLD_PCI_CONFIGURATION(s) ? 0x50 : 0x7c)
#define PVSCSI_EXP_EP_OFFSET (0x40)
typedef struct PVSCSIRingInfo {
uint64_t rs_pa;
@ -1112,6 +1117,10 @@ pvscsi_init(PCIDevice *pci_dev)
pvscsi_init_msi(s);
if (pci_is_express(pci_dev) && pci_bus_is_express(pci_dev->bus)) {
pcie_endpoint_cap_init(pci_dev, PVSCSI_EXP_EP_OFFSET);
}
s->completion_worker = qemu_bh_new(pvscsi_process_completion_queue, s);
if (!s->completion_worker) {
pvscsi_cleanup_msi(s);
@ -1166,6 +1175,27 @@ pvscsi_post_load(void *opaque, int version_id)
return 0;
}
static bool pvscsi_vmstate_need_pcie_device(void *opaque)
{
PVSCSIState *s = PVSCSI(opaque);
return !(s->compat_flags & PVSCSI_COMPAT_DISABLE_PCIE);
}
static bool pvscsi_vmstate_test_pci_device(void *opaque, int version_id)
{
return !pvscsi_vmstate_need_pcie_device(opaque);
}
static const VMStateDescription vmstate_pvscsi_pcie_device = {
.name = "pvscsi/pcie",
.needed = pvscsi_vmstate_need_pcie_device,
.fields = (VMStateField[]) {
VMSTATE_PCIE_DEVICE(parent_obj, PVSCSIState),
VMSTATE_END_OF_LIST()
}
};
static const VMStateDescription vmstate_pvscsi = {
.name = "pvscsi",
.version_id = 0,
@ -1173,7 +1203,9 @@ static const VMStateDescription vmstate_pvscsi = {
.pre_save = pvscsi_pre_save,
.post_load = pvscsi_post_load,
.fields = (VMStateField[]) {
VMSTATE_PCI_DEVICE(parent_obj, PVSCSIState),
VMSTATE_STRUCT_TEST(parent_obj, PVSCSIState,
pvscsi_vmstate_test_pci_device, 0,
vmstate_pci_device, PCIDevice),
VMSTATE_UINT8(msi_used, PVSCSIState),
VMSTATE_UINT32(resetting, PVSCSIState),
VMSTATE_UINT64(reg_interrupt_status, PVSCSIState),
@ -1198,6 +1230,10 @@ static const VMStateDescription vmstate_pvscsi = {
VMSTATE_UINT64(rings.filled_cmp_ptr, PVSCSIState),
VMSTATE_END_OF_LIST()
},
.subsections = (const VMStateDescription*[]) {
&vmstate_pvscsi_pcie_device,
NULL
}
};
@ -1208,10 +1244,24 @@ static Property pvscsi_properties[] = {
DEFINE_PROP_END_OF_LIST(),
};
static void pvscsi_realize(DeviceState *qdev, Error **errp)
{
PVSCSIClass *pvs_c = PVSCSI_DEVICE_GET_CLASS(qdev);
PCIDevice *pci_dev = PCI_DEVICE(qdev);
PVSCSIState *s = PVSCSI(qdev);
if (!(s->compat_flags & PVSCSI_COMPAT_DISABLE_PCIE)) {
pci_dev->cap_present |= QEMU_PCI_CAP_EXPRESS;
}
pvs_c->parent_dc_realize(qdev, errp);
}
static void pvscsi_class_init(ObjectClass *klass, void *data)
{
DeviceClass *dc = DEVICE_CLASS(klass);
PCIDeviceClass *k = PCI_DEVICE_CLASS(klass);
PVSCSIClass *pvs_k = PVSCSI_DEVICE_CLASS(klass);
HotplugHandlerClass *hc = HOTPLUG_HANDLER_CLASS(klass);
k->init = pvscsi_init;
@ -1220,6 +1270,8 @@ static void pvscsi_class_init(ObjectClass *klass, void *data)
k->device_id = PCI_DEVICE_ID_VMWARE_PVSCSI;
k->class_id = PCI_CLASS_STORAGE_SCSI;
k->subsystem_id = 0x1000;
pvs_k->parent_dc_realize = dc->realize;
dc->realize = pvscsi_realize;
dc->reset = pvscsi_reset;
dc->vmsd = &vmstate_pvscsi;
dc->props = pvscsi_properties;