drivers/virtio/virtio_ring.c | 228 +++++++++++++++++++---------------- 1 file changed, 121 insertions(+), 107 deletions(-)
From: Wenyu Huang <huangwenyu1998@gmail.com>
It used for testing in tools/virtio/vringh_test.c.
If vring_new_virtqueue supports packed vring, we can add support for
packed vring to vringh and test it.
Signed-off-by: Wenyu Huang <huangwenyu1998@gmail.com>
---
Changes in v2: Make the commit title and description more clearer.
Changes in v3: Remove the declaration of __vring_new_virtqueue_split and
__vring_new_virtqueue_packed and move the definition of
these two functions.
drivers/virtio/virtio_ring.c | 228 +++++++++++++++++++----------------
1 file changed, 121 insertions(+), 107 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index be7309b1e860..91fbfdef2be8 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -223,15 +223,6 @@ struct vring_virtqueue {
#endif
};
-static struct virtqueue *__vring_new_virtqueue(unsigned int index,
- struct vring_virtqueue_split *vring_split,
- struct virtio_device *vdev,
- bool weak_barriers,
- bool context,
- bool (*notify)(struct virtqueue *),
- void (*callback)(struct virtqueue *),
- const char *name,
- struct device *dma_dev);
static struct vring_desc_extra *vring_alloc_desc_extra(unsigned int num);
static void vring_free(struct virtqueue *_vq);
@@ -1138,6 +1129,66 @@ static int vring_alloc_queue_split(struct vring_virtqueue_split *vring_split,
return 0;
}
+static struct virtqueue *__vring_new_virtqueue_split(unsigned int index,
+ struct vring_virtqueue_split *vring_split,
+ struct virtio_device *vdev,
+ bool weak_barriers,
+ bool context,
+ bool (*notify)(struct virtqueue *),
+ void (*callback)(struct virtqueue *),
+ const char *name,
+ struct device *dma_dev)
+{
+ struct vring_virtqueue *vq;
+ int err;
+
+ vq = kmalloc(sizeof(*vq), GFP_KERNEL);
+ if (!vq)
+ return NULL;
+
+ vq->packed_ring = false;
+ vq->vq.callback = callback;
+ vq->vq.vdev = vdev;
+ vq->vq.name = name;
+ vq->vq.index = index;
+ vq->vq.reset = false;
+ vq->we_own_ring = false;
+ vq->notify = notify;
+ vq->weak_barriers = weak_barriers;
+#ifdef CONFIG_VIRTIO_HARDEN_NOTIFICATION
+ vq->broken = true;
+#else
+ vq->broken = false;
+#endif
+ vq->dma_dev = dma_dev;
+ vq->use_dma_api = vring_use_dma_api(vdev);
+ vq->premapped = false;
+ vq->do_unmap = vq->use_dma_api;
+
+ vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) &&
+ !context;
+ vq->event = virtio_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX);
+
+ if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
+ vq->weak_barriers = false;
+
+ err = vring_alloc_state_extra_split(vring_split);
+ if (err) {
+ kfree(vq);
+ return NULL;
+ }
+
+ virtqueue_vring_init_split(vring_split, vq);
+
+ virtqueue_init(vq, vring_split->vring.num);
+ virtqueue_vring_attach_split(vq, vring_split);
+
+ spin_lock(&vdev->vqs_list_lock);
+ list_add_tail(&vq->vq.list, &vdev->vqs);
+ spin_unlock(&vdev->vqs_list_lock);
+ return &vq->vq;
+}
+
static struct virtqueue *vring_create_virtqueue_split(
unsigned int index,
unsigned int num,
@@ -1160,7 +1211,7 @@ static struct virtqueue *vring_create_virtqueue_split(
if (err)
return NULL;
- vq = __vring_new_virtqueue(index, &vring_split, vdev, weak_barriers,
+ vq = __vring_new_virtqueue_split(index, &vring_split, vdev, weak_barriers,
context, notify, callback, name, dma_dev);
if (!vq) {
vring_free_split(&vring_split, vdev, dma_dev);
@@ -2050,36 +2101,29 @@ static void virtqueue_reinit_packed(struct vring_virtqueue *vq)
virtqueue_vring_init_packed(&vq->packed, !!vq->vq.callback);
}
-static struct virtqueue *vring_create_virtqueue_packed(
- unsigned int index,
- unsigned int num,
- unsigned int vring_align,
- struct virtio_device *vdev,
- bool weak_barriers,
- bool may_reduce_num,
- bool context,
- bool (*notify)(struct virtqueue *),
- void (*callback)(struct virtqueue *),
- const char *name,
- struct device *dma_dev)
+static struct virtqueue *__vring_new_virtqueue_packed(unsigned int index,
+ struct vring_virtqueue_packed *vring_packed,
+ struct virtio_device *vdev,
+ bool weak_barriers,
+ bool context,
+ bool (*notify)(struct virtqueue *),
+ void (*callback)(struct virtqueue *),
+ const char *name,
+ struct device *dma_dev)
{
- struct vring_virtqueue_packed vring_packed = {};
struct vring_virtqueue *vq;
int err;
- if (vring_alloc_queue_packed(&vring_packed, vdev, num, dma_dev))
- goto err_ring;
-
vq = kmalloc(sizeof(*vq), GFP_KERNEL);
if (!vq)
- goto err_vq;
+ return NULL;
vq->vq.callback = callback;
vq->vq.vdev = vdev;
vq->vq.name = name;
vq->vq.index = index;
vq->vq.reset = false;
- vq->we_own_ring = true;
+ vq->we_own_ring = false;
vq->notify = notify;
vq->weak_barriers = weak_barriers;
#ifdef CONFIG_VIRTIO_HARDEN_NOTIFICATION
@@ -2100,26 +2144,52 @@ static struct virtqueue *vring_create_virtqueue_packed(
if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
vq->weak_barriers = false;
- err = vring_alloc_state_extra_packed(&vring_packed);
- if (err)
- goto err_state_extra;
+ err = vring_alloc_state_extra_packed(vring_packed);
+ if (err) {
+ kfree(vq);
+ return NULL;
+ }
- virtqueue_vring_init_packed(&vring_packed, !!callback);
+ virtqueue_vring_init_packed(vring_packed, !!callback);
- virtqueue_init(vq, num);
- virtqueue_vring_attach_packed(vq, &vring_packed);
+ virtqueue_init(vq, vring_packed->vring.num);
+ virtqueue_vring_attach_packed(vq, vring_packed);
spin_lock(&vdev->vqs_list_lock);
list_add_tail(&vq->vq.list, &vdev->vqs);
spin_unlock(&vdev->vqs_list_lock);
return &vq->vq;
+}
-err_state_extra:
- kfree(vq);
-err_vq:
- vring_free_packed(&vring_packed, vdev, dma_dev);
-err_ring:
- return NULL;
+static struct virtqueue *vring_create_virtqueue_packed(
+ unsigned int index,
+ unsigned int num,
+ unsigned int vring_align,
+ struct virtio_device *vdev,
+ bool weak_barriers,
+ bool may_reduce_num,
+ bool context,
+ bool (*notify)(struct virtqueue *),
+ void (*callback)(struct virtqueue *),
+ const char *name,
+ struct device *dma_dev)
+{
+ struct vring_virtqueue_packed vring_packed = {};
+ struct virtqueue *vq;
+
+ if (vring_alloc_queue_packed(&vring_packed, vdev, num, dma_dev))
+ return NULL;
+
+ vq = __vring_new_virtqueue_packed(index, &vring_packed, vdev, weak_barriers,
+ context, notify, callback, name, dma_dev);
+ if (!vq) {
+ vring_free_packed(&vring_packed, vdev, dma_dev);
+ return NULL;
+ }
+
+ to_vvq(vq)->we_own_ring = true;
+
+ return vq;
}
static int virtqueue_resize_packed(struct virtqueue *_vq, u32 num)
@@ -2598,69 +2668,7 @@ irqreturn_t vring_interrupt(int irq, void *_vq)
}
EXPORT_SYMBOL_GPL(vring_interrupt);
-/* Only available for split ring */
-static struct virtqueue *__vring_new_virtqueue(unsigned int index,
- struct vring_virtqueue_split *vring_split,
- struct virtio_device *vdev,
- bool weak_barriers,
- bool context,
- bool (*notify)(struct virtqueue *),
- void (*callback)(struct virtqueue *),
- const char *name,
- struct device *dma_dev)
-{
- struct vring_virtqueue *vq;
- int err;
-
- if (virtio_has_feature(vdev, VIRTIO_F_RING_PACKED))
- return NULL;
-
- vq = kmalloc(sizeof(*vq), GFP_KERNEL);
- if (!vq)
- return NULL;
-
- vq->packed_ring = false;
- vq->vq.callback = callback;
- vq->vq.vdev = vdev;
- vq->vq.name = name;
- vq->vq.index = index;
- vq->vq.reset = false;
- vq->we_own_ring = false;
- vq->notify = notify;
- vq->weak_barriers = weak_barriers;
-#ifdef CONFIG_VIRTIO_HARDEN_NOTIFICATION
- vq->broken = true;
-#else
- vq->broken = false;
-#endif
- vq->dma_dev = dma_dev;
- vq->use_dma_api = vring_use_dma_api(vdev);
- vq->premapped = false;
- vq->do_unmap = vq->use_dma_api;
- vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) &&
- !context;
- vq->event = virtio_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX);
-
- if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
- vq->weak_barriers = false;
-
- err = vring_alloc_state_extra_split(vring_split);
- if (err) {
- kfree(vq);
- return NULL;
- }
-
- virtqueue_vring_init_split(vring_split, vq);
-
- virtqueue_init(vq, vring_split->vring.num);
- virtqueue_vring_attach_split(vq, vring_split);
-
- spin_lock(&vdev->vqs_list_lock);
- list_add_tail(&vq->vq.list, &vdev->vqs);
- spin_unlock(&vdev->vqs_list_lock);
- return &vq->vq;
-}
struct virtqueue *vring_create_virtqueue(
unsigned int index,
@@ -2840,7 +2848,6 @@ int virtqueue_reset(struct virtqueue *_vq,
}
EXPORT_SYMBOL_GPL(virtqueue_reset);
-/* Only available for split ring */
struct virtqueue *vring_new_virtqueue(unsigned int index,
unsigned int num,
unsigned int vring_align,
@@ -2852,13 +2859,20 @@ struct virtqueue *vring_new_virtqueue(unsigned int index,
void (*callback)(struct virtqueue *vq),
const char *name)
{
- struct vring_virtqueue_split vring_split = {};
+ struct vring_virtqueue_split vring_split = {};
- if (virtio_has_feature(vdev, VIRTIO_F_RING_PACKED))
- return NULL;
+ if (virtio_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
+ struct vring_virtqueue_packed vring_packed = {};
+ vring_packed.vring.num = num;
+ vring_packed.vring.desc = pages;
+ return __vring_new_virtqueue_packed(index, &vring_packed,
+ vdev, weak_barriers,
+ context, notify, callback,
+ name, vdev->dev.parent);
+ }
vring_init(&vring_split.vring, num, pages, vring_align);
- return __vring_new_virtqueue(index, &vring_split, vdev, weak_barriers,
+ return __vring_new_virtqueue_split(index, &vring_split, vdev, weak_barriers,
context, notify, callback, name,
vdev->dev.parent);
}
--
2.43.0On Wed, Oct 09, 2024 at 11:34:30PM GMT, huangwenyu1998@gmail.com wrote:
>From: Wenyu Huang <huangwenyu1998@gmail.com>
>
>It used for testing in tools/virtio/vringh_test.c.
>If vring_new_virtqueue supports packed vring, we can add support for
>packed vring to vringh and test it.
Are you also working on that changes?
>
>Signed-off-by: Wenyu Huang <huangwenyu1998@gmail.com>
>---
>Changes in v2: Make the commit title and description more clearer.
>Changes in v3: Remove the declaration of __vring_new_virtqueue_split and
> __vring_new_virtqueue_packed and move the definition of
> these two functions.
> drivers/virtio/virtio_ring.c | 228 +++++++++++++++++++----------------
> 1 file changed, 121 insertions(+), 107 deletions(-)
Some checkpatch warnings/errors to fix:
$ ./scripts/checkpatch.pl -g master..HEAD --codespell
ERROR: trailing whitespace
#307: FILE: drivers/virtio/virtio_ring.c:2862:
+^Istruct vring_virtqueue_split vring_split = {};^I$
WARNING: Missing a blank line after declarations
#313: FILE: drivers/virtio/virtio_ring.c:2866:
+ struct vring_virtqueue_packed vring_packed = {};
+ vring_packed.vring.num = num;
total: 1 errors, 1 warnings, 300 lines checked
Apart from these issues, the rest LGTM.
Thanks,
Stefano
>
>diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
>index be7309b1e860..91fbfdef2be8 100644
>--- a/drivers/virtio/virtio_ring.c
>+++ b/drivers/virtio/virtio_ring.c
>@@ -223,15 +223,6 @@ struct vring_virtqueue {
> #endif
> };
>
>-static struct virtqueue *__vring_new_virtqueue(unsigned int index,
>- struct vring_virtqueue_split *vring_split,
>- struct virtio_device *vdev,
>- bool weak_barriers,
>- bool context,
>- bool (*notify)(struct virtqueue *),
>- void (*callback)(struct virtqueue *),
>- const char *name,
>- struct device *dma_dev);
> static struct vring_desc_extra *vring_alloc_desc_extra(unsigned int num);
> static void vring_free(struct virtqueue *_vq);
>
>@@ -1138,6 +1129,66 @@ static int vring_alloc_queue_split(struct vring_virtqueue_split *vring_split,
> return 0;
> }
>
>+static struct virtqueue *__vring_new_virtqueue_split(unsigned int index,
>+ struct vring_virtqueue_split *vring_split,
>+ struct virtio_device *vdev,
>+ bool weak_barriers,
>+ bool context,
>+ bool (*notify)(struct virtqueue *),
>+ void (*callback)(struct virtqueue *),
>+ const char *name,
>+ struct device *dma_dev)
>+{
>+ struct vring_virtqueue *vq;
>+ int err;
>+
>+ vq = kmalloc(sizeof(*vq), GFP_KERNEL);
>+ if (!vq)
>+ return NULL;
>+
>+ vq->packed_ring = false;
>+ vq->vq.callback = callback;
>+ vq->vq.vdev = vdev;
>+ vq->vq.name = name;
>+ vq->vq.index = index;
>+ vq->vq.reset = false;
>+ vq->we_own_ring = false;
>+ vq->notify = notify;
>+ vq->weak_barriers = weak_barriers;
>+#ifdef CONFIG_VIRTIO_HARDEN_NOTIFICATION
>+ vq->broken = true;
>+#else
>+ vq->broken = false;
>+#endif
>+ vq->dma_dev = dma_dev;
>+ vq->use_dma_api = vring_use_dma_api(vdev);
>+ vq->premapped = false;
>+ vq->do_unmap = vq->use_dma_api;
>+
>+ vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) &&
>+ !context;
>+ vq->event = virtio_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX);
>+
>+ if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
>+ vq->weak_barriers = false;
>+
>+ err = vring_alloc_state_extra_split(vring_split);
>+ if (err) {
>+ kfree(vq);
>+ return NULL;
>+ }
>+
>+ virtqueue_vring_init_split(vring_split, vq);
>+
>+ virtqueue_init(vq, vring_split->vring.num);
>+ virtqueue_vring_attach_split(vq, vring_split);
>+
>+ spin_lock(&vdev->vqs_list_lock);
>+ list_add_tail(&vq->vq.list, &vdev->vqs);
>+ spin_unlock(&vdev->vqs_list_lock);
>+ return &vq->vq;
>+}
>+
> static struct virtqueue *vring_create_virtqueue_split(
> unsigned int index,
> unsigned int num,
>@@ -1160,7 +1211,7 @@ static struct virtqueue *vring_create_virtqueue_split(
> if (err)
> return NULL;
>
>- vq = __vring_new_virtqueue(index, &vring_split, vdev, weak_barriers,
>+ vq = __vring_new_virtqueue_split(index, &vring_split, vdev, weak_barriers,
> context, notify, callback, name, dma_dev);
> if (!vq) {
> vring_free_split(&vring_split, vdev, dma_dev);
>@@ -2050,36 +2101,29 @@ static void virtqueue_reinit_packed(struct vring_virtqueue *vq)
> virtqueue_vring_init_packed(&vq->packed, !!vq->vq.callback);
> }
>
>-static struct virtqueue *vring_create_virtqueue_packed(
>- unsigned int index,
>- unsigned int num,
>- unsigned int vring_align,
>- struct virtio_device *vdev,
>- bool weak_barriers,
>- bool may_reduce_num,
>- bool context,
>- bool (*notify)(struct virtqueue *),
>- void (*callback)(struct virtqueue *),
>- const char *name,
>- struct device *dma_dev)
>+static struct virtqueue *__vring_new_virtqueue_packed(unsigned int index,
>+ struct vring_virtqueue_packed *vring_packed,
>+ struct virtio_device *vdev,
>+ bool weak_barriers,
>+ bool context,
>+ bool (*notify)(struct virtqueue *),
>+ void (*callback)(struct virtqueue *),
>+ const char *name,
>+ struct device *dma_dev)
> {
>- struct vring_virtqueue_packed vring_packed = {};
> struct vring_virtqueue *vq;
> int err;
>
>- if (vring_alloc_queue_packed(&vring_packed, vdev, num, dma_dev))
>- goto err_ring;
>-
> vq = kmalloc(sizeof(*vq), GFP_KERNEL);
> if (!vq)
>- goto err_vq;
>+ return NULL;
>
> vq->vq.callback = callback;
> vq->vq.vdev = vdev;
> vq->vq.name = name;
> vq->vq.index = index;
> vq->vq.reset = false;
>- vq->we_own_ring = true;
>+ vq->we_own_ring = false;
> vq->notify = notify;
> vq->weak_barriers = weak_barriers;
> #ifdef CONFIG_VIRTIO_HARDEN_NOTIFICATION
>@@ -2100,26 +2144,52 @@ static struct virtqueue *vring_create_virtqueue_packed(
> if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
> vq->weak_barriers = false;
>
>- err = vring_alloc_state_extra_packed(&vring_packed);
>- if (err)
>- goto err_state_extra;
>+ err = vring_alloc_state_extra_packed(vring_packed);
>+ if (err) {
>+ kfree(vq);
>+ return NULL;
>+ }
>
>- virtqueue_vring_init_packed(&vring_packed, !!callback);
>+ virtqueue_vring_init_packed(vring_packed, !!callback);
>
>- virtqueue_init(vq, num);
>- virtqueue_vring_attach_packed(vq, &vring_packed);
>+ virtqueue_init(vq, vring_packed->vring.num);
>+ virtqueue_vring_attach_packed(vq, vring_packed);
>
> spin_lock(&vdev->vqs_list_lock);
> list_add_tail(&vq->vq.list, &vdev->vqs);
> spin_unlock(&vdev->vqs_list_lock);
> return &vq->vq;
>+}
>
>-err_state_extra:
>- kfree(vq);
>-err_vq:
>- vring_free_packed(&vring_packed, vdev, dma_dev);
>-err_ring:
>- return NULL;
>+static struct virtqueue *vring_create_virtqueue_packed(
>+ unsigned int index,
>+ unsigned int num,
>+ unsigned int vring_align,
>+ struct virtio_device *vdev,
>+ bool weak_barriers,
>+ bool may_reduce_num,
>+ bool context,
>+ bool (*notify)(struct virtqueue *),
>+ void (*callback)(struct virtqueue *),
>+ const char *name,
>+ struct device *dma_dev)
>+{
>+ struct vring_virtqueue_packed vring_packed = {};
>+ struct virtqueue *vq;
>+
>+ if (vring_alloc_queue_packed(&vring_packed, vdev, num, dma_dev))
>+ return NULL;
>+
>+ vq = __vring_new_virtqueue_packed(index, &vring_packed, vdev, weak_barriers,
>+ context, notify, callback, name, dma_dev);
>+ if (!vq) {
>+ vring_free_packed(&vring_packed, vdev, dma_dev);
>+ return NULL;
>+ }
>+
>+ to_vvq(vq)->we_own_ring = true;
>+
>+ return vq;
> }
>
> static int virtqueue_resize_packed(struct virtqueue *_vq, u32 num)
>@@ -2598,69 +2668,7 @@ irqreturn_t vring_interrupt(int irq, void *_vq)
> }
> EXPORT_SYMBOL_GPL(vring_interrupt);
>
>-/* Only available for split ring */
>-static struct virtqueue *__vring_new_virtqueue(unsigned int index,
>- struct vring_virtqueue_split *vring_split,
>- struct virtio_device *vdev,
>- bool weak_barriers,
>- bool context,
>- bool (*notify)(struct virtqueue *),
>- void (*callback)(struct virtqueue *),
>- const char *name,
>- struct device *dma_dev)
>-{
>- struct vring_virtqueue *vq;
>- int err;
>-
>- if (virtio_has_feature(vdev, VIRTIO_F_RING_PACKED))
>- return NULL;
>-
>- vq = kmalloc(sizeof(*vq), GFP_KERNEL);
>- if (!vq)
>- return NULL;
>-
>- vq->packed_ring = false;
>- vq->vq.callback = callback;
>- vq->vq.vdev = vdev;
>- vq->vq.name = name;
>- vq->vq.index = index;
>- vq->vq.reset = false;
>- vq->we_own_ring = false;
>- vq->notify = notify;
>- vq->weak_barriers = weak_barriers;
>-#ifdef CONFIG_VIRTIO_HARDEN_NOTIFICATION
>- vq->broken = true;
>-#else
>- vq->broken = false;
>-#endif
>- vq->dma_dev = dma_dev;
>- vq->use_dma_api = vring_use_dma_api(vdev);
>- vq->premapped = false;
>- vq->do_unmap = vq->use_dma_api;
>
>- vq->indirect = virtio_has_feature(vdev, VIRTIO_RING_F_INDIRECT_DESC) &&
>- !context;
>- vq->event = virtio_has_feature(vdev, VIRTIO_RING_F_EVENT_IDX);
>-
>- if (virtio_has_feature(vdev, VIRTIO_F_ORDER_PLATFORM))
>- vq->weak_barriers = false;
>-
>- err = vring_alloc_state_extra_split(vring_split);
>- if (err) {
>- kfree(vq);
>- return NULL;
>- }
>-
>- virtqueue_vring_init_split(vring_split, vq);
>-
>- virtqueue_init(vq, vring_split->vring.num);
>- virtqueue_vring_attach_split(vq, vring_split);
>-
>- spin_lock(&vdev->vqs_list_lock);
>- list_add_tail(&vq->vq.list, &vdev->vqs);
>- spin_unlock(&vdev->vqs_list_lock);
>- return &vq->vq;
>-}
>
> struct virtqueue *vring_create_virtqueue(
> unsigned int index,
>@@ -2840,7 +2848,6 @@ int virtqueue_reset(struct virtqueue *_vq,
> }
> EXPORT_SYMBOL_GPL(virtqueue_reset);
>
>-/* Only available for split ring */
> struct virtqueue *vring_new_virtqueue(unsigned int index,
> unsigned int num,
> unsigned int vring_align,
>@@ -2852,13 +2859,20 @@ struct virtqueue *vring_new_virtqueue(unsigned int index,
> void (*callback)(struct virtqueue *vq),
> const char *name)
> {
>- struct vring_virtqueue_split vring_split = {};
>+ struct vring_virtqueue_split vring_split = {};
>
>- if (virtio_has_feature(vdev, VIRTIO_F_RING_PACKED))
>- return NULL;
>+ if (virtio_has_feature(vdev, VIRTIO_F_RING_PACKED)) {
>+ struct vring_virtqueue_packed vring_packed = {};
>+ vring_packed.vring.num = num;
>+ vring_packed.vring.desc = pages;
>+ return __vring_new_virtqueue_packed(index, &vring_packed,
>+ vdev, weak_barriers,
>+ context, notify, callback,
>+ name, vdev->dev.parent);
>+ }
>
> vring_init(&vring_split.vring, num, pages, vring_align);
>- return __vring_new_virtqueue(index, &vring_split, vdev, weak_barriers,
>+ return __vring_new_virtqueue_split(index, &vring_split, vdev, weak_barriers,
> context, notify, callback, name,
> vdev->dev.parent);
> }
>--
>2.43.0
>
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