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pseries: Convert VIO code to QOM style type safe(ish) casts 

Curerntly the pseries VIO device code contains quite a few explicit
uses of DO_UPCAST and plain C casts.  This is (obviously) type unsafe,
and not the conventional way of doing things in the QOM model.  This
patch converts the code to use the QOM convention of per-type macros
to do verified casts with OBJECT_CHECK().

Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Signed-off-by: Alexander Graf <agraf@suse.de>
This commit is contained in:
David Gibson 2013-04-07 19:08:16 +00:00 committed by Alexander Graf
parent 9b00ea4906
commit fd506b4f61
5 changed files with 43 additions and 28 deletions
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18
hw/char/spapr_vty.c
View File

@ -12,16 +12,20 @@ typedef struct VIOsPAPRVTYDevice {
uint8_t buf[VTERM_BUFSIZE];
} VIOsPAPRVTYDevice;
#define TYPE_VIO_SPAPR_VTY_DEVICE "spapr-vty"
#define VIO_SPAPR_VTY_DEVICE(obj) \
OBJECT_CHECK(VIOsPAPRVTYDevice, (obj), TYPE_VIO_SPAPR_VTY_DEVICE)
static int vty_can_receive(void *opaque)
{
VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)opaque;
VIOsPAPRVTYDevice *dev = VIO_SPAPR_VTY_DEVICE(opaque);
return (dev->in - dev->out) < VTERM_BUFSIZE;
}
static void vty_receive(void *opaque, const uint8_t *buf, int size)
{
VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)opaque;
VIOsPAPRVTYDevice *dev = VIO_SPAPR_VTY_DEVICE(opaque);
int i;
if ((dev->in == dev->out) && size) {
@ -36,7 +40,7 @@ static void vty_receive(void *opaque, const uint8_t *buf, int size)
static int vty_getchars(VIOsPAPRDevice *sdev, uint8_t *buf, int max)
{
VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)sdev;
VIOsPAPRVTYDevice *dev = VIO_SPAPR_VTY_DEVICE(sdev);
int n = 0;
while ((n < max) && (dev->out != dev->in)) {
@ -48,7 +52,7 @@ static int vty_getchars(VIOsPAPRDevice *sdev, uint8_t *buf, int max)
void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len)
{
VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)sdev;
VIOsPAPRVTYDevice *dev = VIO_SPAPR_VTY_DEVICE(sdev);
/* FIXME: should check the qemu_chr_fe_write() return value */
qemu_chr_fe_write(dev->chardev, buf, len);
@ -56,7 +60,7 @@ void vty_putchars(VIOsPAPRDevice *sdev, uint8_t *buf, int len)
static int spapr_vty_init(VIOsPAPRDevice *sdev)
{
VIOsPAPRVTYDevice *dev = (VIOsPAPRVTYDevice *)sdev;
VIOsPAPRVTYDevice *dev = VIO_SPAPR_VTY_DEVICE(sdev);
if (!dev->chardev) {
fprintf(stderr, "spapr-vty: Can't create vty without a chardev!\n");
@ -151,7 +155,7 @@ static void spapr_vty_class_init(ObjectClass *klass, void *data)
}
static const TypeInfo spapr_vty_info = {
.name = "spapr-vty",
.name = TYPE_VIO_SPAPR_VTY_DEVICE,
.parent = TYPE_VIO_SPAPR_DEVICE,
.instance_size = sizeof(VIOsPAPRVTYDevice),
.class_init = spapr_vty_class_init,
@ -177,7 +181,7 @@ VIOsPAPRDevice *spapr_vty_get_default(VIOsPAPRBus *bus)
continue;
}
sdev = DO_UPCAST(VIOsPAPRDevice, qdev, iter);
sdev = VIO_SPAPR_DEVICE(iter);
/* First VTY we've found, so it is selected for now */
if (!selected) {

24
hw/net/spapr_llan.c
View File

@ -73,6 +73,10 @@ typedef uint64_t vlan_bd_t;
#define VLAN_RX_BDS_OFF 16
#define VLAN_MAX_BUFS ((SPAPR_TCE_PAGE_SIZE - VLAN_RX_BDS_OFF) / 8)
#define TYPE_VIO_SPAPR_VLAN_DEVICE "spapr-vlan"
#define VIO_SPAPR_VLAN_DEVICE(obj) \
OBJECT_CHECK(VIOsPAPRVLANDevice, (obj), TYPE_VIO_SPAPR_VLAN_DEVICE)
typedef struct VIOsPAPRVLANDevice {
VIOsPAPRDevice sdev;
NICConf nicconf;
@ -93,8 +97,8 @@ static int spapr_vlan_can_receive(NetClientState *nc)
static ssize_t spapr_vlan_receive(NetClientState *nc, const uint8_t *buf,
size_t size)
{
VIOsPAPRDevice *sdev = qemu_get_nic_opaque(nc);
VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
VIOsPAPRVLANDevice *dev = qemu_get_nic_opaque(nc);
VIOsPAPRDevice *sdev = VIO_SPAPR_DEVICE(dev);
vlan_bd_t rxq_bd = vio_ldq(sdev, dev->buf_list + VLAN_RXQ_BD_OFF);
vlan_bd_t bd;
int buf_ptr = dev->use_buf_ptr;
@ -192,7 +196,7 @@ static NetClientInfo net_spapr_vlan_info = {
static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
{
VIOsPAPRVLANDevice *dev = DO_UPCAST(VIOsPAPRVLANDevice, sdev, sdev);
VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
dev->buf_list = 0;
dev->rx_bufs = 0;
@ -201,7 +205,7 @@ static void spapr_vlan_reset(VIOsPAPRDevice *sdev)
static int spapr_vlan_init(VIOsPAPRDevice *sdev)
{
VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
qemu_macaddr_default_if_unset(&dev->nicconf.macaddr);
@ -225,7 +229,7 @@ void spapr_vlan_create(VIOsPAPRBus *bus, NICInfo *nd)
static int spapr_vlan_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
{
VIOsPAPRVLANDevice *vdev = (VIOsPAPRVLANDevice *)dev;
VIOsPAPRVLANDevice *vdev = VIO_SPAPR_VLAN_DEVICE(dev);
uint8_t padded_mac[8] = {0, 0};
int ret;
@ -282,7 +286,7 @@ static target_ulong h_register_logical_lan(PowerPCCPU *cpu,
target_ulong rec_queue = args[2];
target_ulong filter_list = args[3];
VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
vlan_bd_t filter_list_bd;
if (!dev) {
@ -341,7 +345,7 @@ static target_ulong h_free_logical_lan(PowerPCCPU *cpu, sPAPREnvironment *spapr,
{
target_ulong reg = args[0];
VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
if (!dev) {
return H_PARAMETER;
@ -365,7 +369,7 @@ static target_ulong h_add_logical_lan_buffer(PowerPCCPU *cpu,
target_ulong reg = args[0];
target_ulong buf = args[1];
VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
vlan_bd_t bd;
dprintf("H_ADD_LOGICAL_LAN_BUFFER(0x" TARGET_FMT_lx
@ -413,7 +417,7 @@ static target_ulong h_send_logical_lan(PowerPCCPU *cpu, sPAPREnvironment *spapr,
target_ulong *bufs = args + 1;
target_ulong continue_token = args[7];
VIOsPAPRDevice *sdev = spapr_vio_find_by_reg(spapr->vio_bus, reg);
VIOsPAPRVLANDevice *dev = (VIOsPAPRVLANDevice *)sdev;
VIOsPAPRVLANDevice *dev = VIO_SPAPR_VLAN_DEVICE(sdev);
unsigned total_len;
uint8_t *lbuf, *p;
int i, nbufs;
@ -511,7 +515,7 @@ static void spapr_vlan_class_init(ObjectClass *klass, void *data)
}
static const TypeInfo spapr_vlan_info = {
.name = "spapr-vlan",
.name = TYPE_VIO_SPAPR_VLAN_DEVICE,
.parent = TYPE_VIO_SPAPR_DEVICE,
.instance_size = sizeof(VIOsPAPRVLANDevice),
.class_init = spapr_vlan_class_init,

10
hw/nvram/spapr_nvram.c
View File

@ -36,6 +36,10 @@ typedef struct sPAPRNVRAM {
BlockDriverState *drive;
} sPAPRNVRAM;
#define TYPE_VIO_SPAPR_NVRAM "spapr-nvram"
#define VIO_SPAPR_NVRAM(obj) \
OBJECT_CHECK(sPAPRNVRAM, (obj), TYPE_VIO_SPAPR_NVRAM)
#define MIN_NVRAM_SIZE 8192
#define DEFAULT_NVRAM_SIZE 65536
#define MAX_NVRAM_SIZE (UINT16_MAX * 16)
@ -134,7 +138,7 @@ static void rtas_nvram_store(sPAPREnvironment *spapr,
static int spapr_nvram_init(VIOsPAPRDevice *dev)
{
sPAPRNVRAM *nvram = (sPAPRNVRAM *)dev;
sPAPRNVRAM *nvram = VIO_SPAPR_NVRAM(dev);
if (nvram->drive) {
nvram->size = bdrv_getlength(nvram->drive);
@ -157,7 +161,7 @@ static int spapr_nvram_init(VIOsPAPRDevice *dev)
static int spapr_nvram_devnode(VIOsPAPRDevice *dev, void *fdt, int node_off)
{
sPAPRNVRAM *nvram = (sPAPRNVRAM *)dev;
sPAPRNVRAM *nvram = VIO_SPAPR_NVRAM(dev);
return fdt_setprop_cell(fdt, node_off, "#bytes", nvram->size);
}
@ -182,7 +186,7 @@ static void spapr_nvram_class_init(ObjectClass *klass, void *data)
}
static const TypeInfo spapr_nvram_type_info = {
.name = "spapr-nvram",
.name = TYPE_VIO_SPAPR_NVRAM,
.parent = TYPE_VIO_SPAPR_DEVICE,
.instance_size = sizeof(sPAPRNVRAM),
.class_init = spapr_nvram_class_init,

4
hw/ppc/spapr_vio.c
View File

@ -379,7 +379,7 @@ static VIOsPAPRDevice *reg_conflict(VIOsPAPRDevice *dev)
* the given dev might already be in the list.
*/
QTAILQ_FOREACH(kid, &bus->bus.children, sibling) {
other = DO_UPCAST(VIOsPAPRDevice, qdev, kid->child);
other = VIO_SPAPR_DEVICE(kid->child);
if (other != dev && other->reg == dev->reg) {
return other;
@ -391,7 +391,7 @@ static VIOsPAPRDevice *reg_conflict(VIOsPAPRDevice *dev)
static void spapr_vio_busdev_reset(DeviceState *qdev)
{
VIOsPAPRDevice *dev = DO_UPCAST(VIOsPAPRDevice, qdev, qdev);
VIOsPAPRDevice *dev = VIO_SPAPR_DEVICE(qdev);
VIOsPAPRDeviceClass *pc = VIO_SPAPR_DEVICE_GET_CLASS(dev);
/* Shut down the request queue and TCEs if necessary */

15
hw/scsi/spapr_vscsi.c
View File

@ -91,6 +91,9 @@ typedef struct vscsi_req {
int total_desc;
} vscsi_req;
#define TYPE_VIO_SPAPR_VSCSI_DEVICE "spapr-vscsi"
#define VIO_SPAPR_VSCSI_DEVICE(obj) \
OBJECT_CHECK(VSCSIState, (obj), TYPE_VIO_SPAPR_VSCSI_DEVICE)
typedef struct {
VIOsPAPRDevice vdev;
@ -461,7 +464,7 @@ static int vscsi_preprocess_desc(vscsi_req *req)
/* Callback to indicate that the SCSI layer has completed a transfer. */
static void vscsi_transfer_data(SCSIRequest *sreq, uint32_t len)
{
VSCSIState *s = DO_UPCAST(VSCSIState, vdev.qdev, sreq->bus->qbus.parent);
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(sreq->bus->qbus.parent);
vscsi_req *req = sreq->hba_private;
uint8_t *buf;
int rc = 0;
@ -492,7 +495,7 @@ static void vscsi_transfer_data(SCSIRequest *sreq, uint32_t len)
/* Callback to indicate that the SCSI layer has completed a transfer. */
static void vscsi_command_complete(SCSIRequest *sreq, uint32_t status, size_t resid)
{
VSCSIState *s = DO_UPCAST(VSCSIState, vdev.qdev, sreq->bus->qbus.parent);
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(sreq->bus->qbus.parent);
vscsi_req *req = sreq->hba_private;
int32_t res_in = 0, res_out = 0;
@ -827,7 +830,7 @@ static void vscsi_got_payload(VSCSIState *s, vscsi_crq *crq)
static int vscsi_do_crq(struct VIOsPAPRDevice *dev, uint8_t *crq_data)
{
VSCSIState *s = DO_UPCAST(VSCSIState, vdev, dev);
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
vscsi_crq crq;
memcpy(crq.raw, crq_data, 16);
@ -897,7 +900,7 @@ static const struct SCSIBusInfo vscsi_scsi_info = {
static void spapr_vscsi_reset(VIOsPAPRDevice *dev)
{
VSCSIState *s = DO_UPCAST(VSCSIState, vdev, dev);
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
int i;
memset(s->reqs, 0, sizeof(s->reqs));
@ -908,7 +911,7 @@ static void spapr_vscsi_reset(VIOsPAPRDevice *dev)
static int spapr_vscsi_init(VIOsPAPRDevice *dev)
{
VSCSIState *s = DO_UPCAST(VSCSIState, vdev, dev);
VSCSIState *s = VIO_SPAPR_VSCSI_DEVICE(dev);
dev->crq.SendFunc = vscsi_do_crq;
@ -968,7 +971,7 @@ static void spapr_vscsi_class_init(ObjectClass *klass, void *data)
}
static const TypeInfo spapr_vscsi_info = {
.name = "spapr-vscsi",
.name = TYPE_VIO_SPAPR_VSCSI_DEVICE,
.parent = TYPE_VIO_SPAPR_DEVICE,
.instance_size = sizeof(VSCSIState),
.class_init = spapr_vscsi_class_init,