From: KONRAD Frederic <fred.kon...@greensocs.com>
As the virtio-blk-pci is switched to the new API, we can use QOM casts and
remove the separate init for the old API.
Signed-off-by: KONRAD Frederic <fred.kon...@greensocs.com>
---
hw/virtio-blk.c | 69 ++++++++++++++++++++++-----------------------------------
1 file changed, 26 insertions(+), 43 deletions(-)
diff --git a/hw/virtio-blk.c b/hw/virtio-blk.c
index 58c9086..9f5865d 100644
--- a/hw/virtio-blk.c
+++ b/hw/virtio-blk.c
@@ -25,7 +25,7 @@
typedef struct VirtIOBlock
{
- VirtIODevice vdev;
+ VirtIODevice parent_obj;
BlockDriverState *bs;
VirtQueue *vq;
void *rq;
@@ -36,14 +36,6 @@ typedef struct VirtIOBlock
DeviceState *qdev;
} VirtIOBlock;
-/*
- * Moving to QOM later in this series.
- */
-static VirtIOBlock *to_virtio_blk(VirtIODevice *vdev)
-{
- return (VirtIOBlock *)vdev;
-}
-
typedef struct VirtIOBlockReq
{
VirtIOBlock *dev;
@@ -59,12 +51,13 @@ typedef struct VirtIOBlockReq
static void virtio_blk_req_complete(VirtIOBlockReq *req, int status)
{
VirtIOBlock *s = req->dev;
+ VirtIODevice *vdev = VIRTIO_DEVICE(s);
trace_virtio_blk_req_complete(req, status);
stb_p(&req->in->status, status);
virtqueue_push(s->vq, &req->elem, req->qiov.size + sizeof(*req->in));
- virtio_notify(&s->vdev, s->vq);
+ virtio_notify(vdev, s->vq);
}
static int virtio_blk_handle_rw_error(VirtIOBlockReq *req, int error,
@@ -405,7 +398,7 @@ static void virtio_blk_handle_request(VirtIOBlockReq *req,
static void virtio_blk_handle_output(VirtIODevice *vdev, VirtQueue *vq)
{
- VirtIOBlock *s = to_virtio_blk(vdev);
+ VirtIOBlock *s = VIRTIO_BLK(vdev);
VirtIOBlockReq *req;
MultiReqBuffer mrb = {
.num_writes = 0,
@@ -472,7 +465,7 @@ static void virtio_blk_reset(VirtIODevice *vdev)
*/
static void virtio_blk_update_config(VirtIODevice *vdev, uint8_t *config)
{
- VirtIOBlock *s = to_virtio_blk(vdev);
+ VirtIOBlock *s = VIRTIO_BLK(vdev);
struct virtio_blk_config blkcfg;
uint64_t capacity;
int blk_size = s->conf->logical_block_size;
@@ -511,7 +504,7 @@ static void virtio_blk_update_config(VirtIODevice *vdev,
uint8_t *config)
static void virtio_blk_set_config(VirtIODevice *vdev, const uint8_t *config)
{
- VirtIOBlock *s = to_virtio_blk(vdev);
+ VirtIOBlock *s = VIRTIO_BLK(vdev);
struct virtio_blk_config blkcfg;
memcpy(&blkcfg, config, sizeof(blkcfg));
@@ -520,7 +513,7 @@ static void virtio_blk_set_config(VirtIODevice *vdev, const
uint8_t *config)
static uint32_t virtio_blk_get_features(VirtIODevice *vdev, uint32_t features)
{
- VirtIOBlock *s = to_virtio_blk(vdev);
+ VirtIOBlock *s = VIRTIO_BLK(vdev);
features |= (1 << VIRTIO_BLK_F_SEG_MAX);
features |= (1 << VIRTIO_BLK_F_GEOMETRY);
@@ -539,7 +532,7 @@ static uint32_t virtio_blk_get_features(VirtIODevice *vdev,
uint32_t features)
static void virtio_blk_set_status(VirtIODevice *vdev, uint8_t status)
{
- VirtIOBlock *s = to_virtio_blk(vdev);
+ VirtIOBlock *s = VIRTIO_BLK(vdev);
uint32_t features;
if (!(status & VIRTIO_CONFIG_S_DRIVER_OK)) {
@@ -553,9 +546,10 @@ static void virtio_blk_set_status(VirtIODevice *vdev,
uint8_t status)
static void virtio_blk_save(QEMUFile *f, void *opaque)
{
VirtIOBlock *s = opaque;
+ VirtIODevice *vdev = VIRTIO_DEVICE(s);
VirtIOBlockReq *req = s->rq;
- virtio_save(&s->vdev, f);
+ virtio_save(vdev, f);
while (req) {
qemu_put_sbyte(f, 1);
@@ -567,13 +561,14 @@ static void virtio_blk_save(QEMUFile *f, void *opaque)
static int virtio_blk_load(QEMUFile *f, void *opaque, int version_id)
{
- VirtIOBlock *s = opaque;
+ VirtIOBlock *s = VIRTIO_BLK(opaque);
+ VirtIODevice *vdev = VIRTIO_DEVICE(s);
int ret;
if (version_id != 2)
return -EINVAL;
- ret = virtio_load(&s->vdev, f);
+ ret = virtio_load(vdev, f);
if (ret) {
return ret;
}
@@ -595,9 +590,9 @@ static int virtio_blk_load(QEMUFile *f, void *opaque, int
version_id)
static void virtio_blk_resize(void *opaque)
{
- VirtIOBlock *s = opaque;
+ VirtIODevice *vdev = VIRTIO_DEVICE(opaque);
- virtio_notify_config(&s->vdev);
+ virtio_notify_config(vdev);
}
static const BlockDevOps virtio_block_ops = {
@@ -614,6 +609,7 @@ static VirtIODevice *virtio_blk_common_init(DeviceState
*dev,
VirtIOBlkConf *blk, VirtIOBlock **ps)
{
VirtIOBlock *s = *ps;
+ VirtIODevice *vdev = VIRTIO_DEVICE(s);
static int virtio_blk_id;
if (!blk->conf.bs) {
@@ -630,33 +626,21 @@ static VirtIODevice *virtio_blk_common_init(DeviceState
*dev,
return NULL;
}
- /*
- * We have two cases here : the old virtio-blk-pci device, and the
- * refactored virtio-blk.
- */
- if (s == NULL) {
- /* virtio-blk-pci */
- s = (VirtIOBlock *)virtio_common_init("virtio-blk", VIRTIO_ID_BLOCK,
- sizeof(struct virtio_blk_config),
- sizeof(VirtIOBlock));
- } else {
- /* virtio-blk */
- virtio_init(VIRTIO_DEVICE(s), "virtio-blk", VIRTIO_ID_BLOCK,
- sizeof(struct virtio_blk_config));
- }
+ virtio_init(VIRTIO_DEVICE(s), "virtio-blk", VIRTIO_ID_BLOCK,
+ sizeof(struct virtio_blk_config));
- s->vdev.get_config = virtio_blk_update_config;
- s->vdev.set_config = virtio_blk_set_config;
- s->vdev.get_features = virtio_blk_get_features;
- s->vdev.set_status = virtio_blk_set_status;
- s->vdev.reset = virtio_blk_reset;
+ vdev->get_config = virtio_blk_update_config;
+ vdev->set_config = virtio_blk_set_config;
+ vdev->get_features = virtio_blk_get_features;
+ vdev->set_status = virtio_blk_set_status;
+ vdev->reset = virtio_blk_reset;
s->bs = blk->conf.bs;
s->conf = &blk->conf;
virtio_blk_set_conf(dev, blk);
s->rq = NULL;
s->sector_mask = (s->conf->logical_block_size / BDRV_SECTOR_SIZE) - 1;
- s->vq = virtio_add_queue(&s->vdev, 128, virtio_blk_handle_output);
+ s->vq = virtio_add_queue(vdev, 128, virtio_blk_handle_output);
qemu_add_vm_change_state_handler(virtio_blk_dma_restart_cb, s);
s->qdev = dev;
@@ -668,7 +652,7 @@ static VirtIODevice *virtio_blk_common_init(DeviceState
*dev,
bdrv_iostatus_enable(s->bs);
add_boot_device_path(s->conf->bootindex, dev, "/disk@0,0");
- return &s->vdev;
+ return vdev;
}
VirtIODevice *virtio_blk_init(DeviceState *dev, VirtIOBlkConf *blk)
@@ -679,13 +663,12 @@ VirtIODevice *virtio_blk_init(DeviceState *dev,
VirtIOBlkConf *blk)
void virtio_blk_exit(VirtIODevice *vdev)
{
- VirtIOBlock *s = to_virtio_blk(vdev);
+ VirtIOBlock *s = VIRTIO_BLK(vdev);
unregister_savevm(s->qdev, "virtio-blk", s);
blockdev_mark_auto_del(s->bs);
virtio_cleanup(vdev);
}
-
static int virtio_device_init(DeviceState *qdev)
{
VirtIODevice *vdev = VIRTIO_DEVICE(qdev);
--
1.7.11.7
