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[PATCH v2 03/24] virtio: introduce virtio_queue_reset()
From: |
Kangjie Xu |
Subject: |
[PATCH v2 03/24] virtio: introduce virtio_queue_reset() |
Date: |
Tue, 16 Aug 2022 09:06:15 +0800 |
From: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Introduce a new interface function virtio_queue_reset() to implement
reset for vq.
Add a new callback to VirtioDeviceClass for queue reset operation for
each child device.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
---
hw/virtio/virtio.c | 11 +++++++++++
include/hw/virtio/virtio.h | 2 ++
2 files changed, 13 insertions(+)
diff --git a/hw/virtio/virtio.c b/hw/virtio/virtio.c
index 67d54832a9..0e9d41366f 100644
--- a/hw/virtio/virtio.c
+++ b/hw/virtio/virtio.c
@@ -2039,6 +2039,17 @@ static void __virtio_queue_reset(VirtIODevice *vdev,
uint32_t i)
virtio_virtqueue_reset_region_cache(&vdev->vq[i]);
}
+void virtio_queue_reset(VirtIODevice *vdev, uint32_t queue_index)
+{
+ VirtioDeviceClass *k = VIRTIO_DEVICE_GET_CLASS(vdev);
+
+ if (k->queue_reset) {
+ k->queue_reset(vdev, queue_index);
+ }
+
+ __virtio_queue_reset(vdev, queue_index);
+}
+
void virtio_reset(void *opaque)
{
VirtIODevice *vdev = opaque;
diff --git a/include/hw/virtio/virtio.h b/include/hw/virtio/virtio.h
index db1c0ddf6b..879394299b 100644
--- a/include/hw/virtio/virtio.h
+++ b/include/hw/virtio/virtio.h
@@ -130,6 +130,7 @@ struct VirtioDeviceClass {
void (*set_config)(VirtIODevice *vdev, const uint8_t *config);
void (*reset)(VirtIODevice *vdev);
void (*set_status)(VirtIODevice *vdev, uint8_t val);
+ void (*queue_reset)(VirtIODevice *vdev, uint32_t queue_index);
/* For transitional devices, this is a bitmap of features
* that are only exposed on the legacy interface but not
* the modern one.
@@ -268,6 +269,7 @@ int virtio_queue_set_host_notifier_mr(VirtIODevice *vdev,
int n,
MemoryRegion *mr, bool assign);
int virtio_set_status(VirtIODevice *vdev, uint8_t val);
void virtio_reset(void *opaque);
+void virtio_queue_reset(VirtIODevice *vdev, uint32_t queue_index);
void virtio_update_irq(VirtIODevice *vdev);
int virtio_set_features(VirtIODevice *vdev, uint64_t val);
--
2.32.0
- [PATCH 00/24] Support VIRTIO_F_RING_RESET for virtio-net, vhost-user, vhost-kernel in virtio pci-modern, Kangjie Xu, 2022/08/15
- [PATCH v2 03/24] virtio: introduce virtio_queue_reset(),
Kangjie Xu <=
- [PATCH v2 07/24] virtio-pci: support queue enable, Kangjie Xu, 2022/08/15
- Re: [PATCH v2 07/24] virtio-pci: support queue enable, Jason Wang, 2022/08/23
- Re: [PATCH v2 07/24] virtio-pci: support queue enable, Kangjie Xu, 2022/08/23
- Re: [PATCH v2 07/24] virtio-pci: support queue enable, Jason Wang, 2022/08/24
- Re: [PATCH v2 07/24] virtio-pci: support queue enable, Kangjie Xu, 2022/08/24
- Re: [PATCH v2 07/24] virtio-pci: support queue enable, Jason Wang, 2022/08/24
- Re: [PATCH v2 07/24] virtio-pci: support queue enable, Kangjie Xu, 2022/08/24
[PATCH v2 04/24] virtio: introduce virtio_queue_enable(), Kangjie Xu, 2022/08/15