Displaying 20 results from an estimated 37 matches for "vdpa_to_sim".
2020 Feb 10
0
[PATCH V2 5/5] vdpasim: vDPA device simulator
...work_struct work;
+ /* spinlock to synchronize virtqueue state */
+ spinlock_t lock;
+ struct vdpa_device vdpa;
+ struct virtio_net_config config;
+ struct vhost_iotlb *iommu;
+ void *buffer;
+ u32 status;
+ u32 generation;
+ u64 features;
+};
+
+struct vdpasim *vdpa_sim;
+
+static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
+{
+ return container_of(vdpa, struct vdpasim, vdpa);
+}
+
+static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
+{
+ struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
+ int ret;
+
+ ret = vringh_init_iotlb(&vq->vring, vdpasim_features,...
2020 Feb 10
1
[PATCH V2 5/5] vdpasim: vDPA device simulator
.../
> + spinlock_t lock;
> + struct vdpa_device vdpa;
> + struct virtio_net_config config;
> + struct vhost_iotlb *iommu;
> + void *buffer;
> + u32 status;
> + u32 generation;
> + u64 features;
> +};
> +
> +struct vdpasim *vdpa_sim;
> +
> +static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
> +{
> + return container_of(vdpa, struct vdpasim, vdpa);
> +}
> +
> +static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
> +{
> + struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
> + int ret;
> +
> + ret = vrin...
2020 Feb 20
0
[PATCH V3 5/5] vdpasim: vDPA device simulator
...struct virtio_net_config config;
+ struct vhost_iotlb *iommu;
+ void *buffer;
+ u32 status;
+ u32 generation;
+ u64 features;
+};
+
+struct vdpasim *vdpasim_dev;
+
+static struct vdpasim *dev_to_sim(struct device *dev)
+{
+ return container_of(dev, struct vdpasim, dev);
+}
+
+static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
+{
+ struct device *d = &vdpa->dev;
+
+ return dev_to_sim(d->parent);
+}
+
+static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
+{
+ struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
+ int ret;
+
+ ret = vringh_init_iotlb(&vq-&g...
2023 Mar 02
1
[PATCH v2 7/8] vdpa_sim: replace the spinlock with a mutex to protect the state
...;lock);
+ mutex_lock(&vdpasim->mutex);
vrh->last_avail_idx = state->split.avail_index;
- spin_unlock(&vdpasim->lock);
+ mutex_unlock(&vdpasim->mutex);
return 0;
}
@@ -398,9 +398,9 @@ static u8 vdpasim_get_status(struct vdpa_device *vdpa)
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
u8 status;
- spin_lock(&vdpasim->lock);
+ mutex_lock(&vdpasim->mutex);
status = vdpasim->status;
- spin_unlock(&vdpasim->lock);
+ mutex_unlock(&vdpasim->mutex);
return status;
}
@@ -409,19 +409,19 @@ static void vdpasim_set_status(struct vdpa_device...
2023 Jan 29
1
[PATCH v3 2/2] vdpasim: support doorbell mapping
...; @@ -39,6 +39,8 @@ MODULE_PARM_DESC(max_iotlb_entries,
> #define VDPASIM_QUEUE_ALIGN PAGE_SIZE
> #define VDPASIM_QUEUE_MAX 256
> #define VDPASIM_VENDOR_ID 0
> +#define VDPASIM_VRING_POLL_PERIOD 100 /* ms */
> +#define VDPASIM_NOTIFY_DEFVAL 0xffff
>
> static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
> {
> @@ -246,6 +248,28 @@ static const struct dma_map_ops vdpasim_dma_ops = {
> static const struct vdpa_config_ops vdpasim_config_ops;
> static const struct vdpa_config_ops vdpasim_batch_config_ops;
>
> +static void vdpasim_notify_work(struct work_st...
2023 Mar 21
3
[PATCH v3 5/8] vdpa_sim: make devices agnostic for work management
...work, struct vdpasim, work);
+
+ vdpasim->dev_attr.work_fn(vdpasim);
+}
+
struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr,
const struct vdpa_dev_set_config *config)
{
@@ -163,7 +170,7 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr,
vdpasim = vdpa_to_sim(vdpa);
vdpasim->dev_attr = *dev_attr;
- INIT_WORK(&vdpasim->work, dev_attr->work_fn);
+ INIT_WORK(&vdpasim->work, vdpasim_work_fn);
spin_lock_init(&vdpasim->lock);
spin_lock_init(&vdpasim->iommu_lock);
@@ -214,6 +221,12 @@ struct vdpasim *vdpasim_create(str...
2020 Aug 05
3
[PATCH v2 22/24] vdpa_sim: fix endian-ness of config space
...le_endian(vdpasim), val);
> +}
> +
> +static inline __virtio16 cpu_to_vdpasim16(struct vdpasim *vdpasim, u16 val)
> +{
> + return __cpu_to_virtio16(vdpasim_is_little_endian(vdpasim), val);
> +}
> +
> static struct vdpasim *vdpasim_dev;
>
> static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
> @@ -306,7 +324,6 @@ static const struct vdpa_config_ops vdpasim_net_config_ops;
>
> static struct vdpasim *vdpasim_create(void)
> {
> - struct virtio_net_config *config;
> struct vdpasim *vdpasim;
> struct device *dev;
> int ret =...
2020 Aug 05
3
[PATCH v2 22/24] vdpa_sim: fix endian-ness of config space
...le_endian(vdpasim), val);
> +}
> +
> +static inline __virtio16 cpu_to_vdpasim16(struct vdpasim *vdpasim, u16 val)
> +{
> + return __cpu_to_virtio16(vdpasim_is_little_endian(vdpasim), val);
> +}
> +
> static struct vdpasim *vdpasim_dev;
>
> static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
> @@ -306,7 +324,6 @@ static const struct vdpa_config_ops vdpasim_net_config_ops;
>
> static struct vdpasim *vdpasim_create(void)
> {
> - struct virtio_net_config *config;
> struct vdpasim *vdpasim;
> struct device *dev;
> int ret =...
2020 Feb 10
9
[PATCH V2 0/5] vDPA support
Hi all:
This is an updated version of kernel support for vDPA device. Various
changes were made based on the feedback since last verion. One major
change is to drop the sysfs API and leave the management interface for
future development, and introudce the incremental DMA bus
operations. Please see changelog for more information.
The work on vhost, IFCVF (intel VF driver for vDPA) and qemu is
2023 Mar 02
8
[PATCH v2 0/8] vdpa_sim: add support for user VA
v2:
- rebased on Linus' tree, commit ae3419fbac84 ("vc_screen: don't clobber
return value in vcs_read")
- removed `struct task_struct *owner` param (unused for now, maybe
?useful to support cgroups) [Jason]
- add unbind_mm callback [Jason]
- call the new unbind_mm callback during the release [Jason]
- avoid to call bind_mm callback after the reset, since the device
?is not
2023 Apr 04
9
[PATCH v5 0/9] vdpa_sim: add support for user VA
This series adds support for the use of user virtual addresses in the
vDPA simulator devices.
The main reason for this change is to lift the pinning of all guest memory.
Especially with virtio devices implemented in software.
The next step would be to generalize the code in vdpa-sim to allow the
implementation of in-kernel software devices. Similar to vhost, but using vDPA
so we can reuse the
2020 Jul 15
2
[PATCH RFC don't apply] vdpa_sim: endian-ness for config space
...16 val)
+{
+ return __virtio16_to_cpu(vdpasim_is_little_endian(vdpasim), val);
+}
+
+static inline __virtio16 cpu_to_vdpasim16(struct vdpasim *vdpasim, u16 val)
+{
+ return __cpu_to_virtio16(vdpasim_is_little_endian(vdpasim), val);
+}
+
static struct vdpasim *vdpasim_dev;
static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
@@ -332,8 +350,8 @@ static struct vdpasim *vdpasim_create(void)
goto err_iommu;
config = &vdpasim->config;
- config->mtu = 1500;
- config->status = VIRTIO_NET_S_LINK_UP;
+ config->mtu = cpu_to_vdpasim16(vdpasim, 1500);
+ config->status = cpu_to_vd...
2020 Jul 15
2
[PATCH RFC don't apply] vdpa_sim: endian-ness for config space
...16 val)
+{
+ return __virtio16_to_cpu(vdpasim_is_little_endian(vdpasim), val);
+}
+
+static inline __virtio16 cpu_to_vdpasim16(struct vdpasim *vdpasim, u16 val)
+{
+ return __cpu_to_virtio16(vdpasim_is_little_endian(vdpasim), val);
+}
+
static struct vdpasim *vdpasim_dev;
static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
@@ -332,8 +350,8 @@ static struct vdpasim *vdpasim_create(void)
goto err_iommu;
config = &vdpasim->config;
- config->mtu = 1500;
- config->status = VIRTIO_NET_S_LINK_UP;
+ config->mtu = cpu_to_vdpasim16(vdpasim, 1500);
+ config->status = cpu_to_vd...
2023 Mar 24
1
[PATCH v3 8/8] vdpa_sim: add support for user VA
...struct vdpasim_mm_work *mm_work)
> +{
> + struct kthread_work *work = &mm_work->work;
> +
> + kthread_init_work(work, vdpasim_mm_work_fn);
> + kthread_queue_work(vdpasim->worker, work);
> +
> + kthread_flush_work(work);
> +}
> +
> static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
> {
> return container_of(vdpa, struct vdpasim, vdpa);
> @@ -59,8 +93,10 @@ static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
> {
> struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
> uint16_t last_avail_idx =...
2020 Aug 03
0
[PATCH v2 22/24] vdpa_sim: fix endian-ness of config space
...16 val)
+{
+ return __virtio16_to_cpu(vdpasim_is_little_endian(vdpasim), val);
+}
+
+static inline __virtio16 cpu_to_vdpasim16(struct vdpasim *vdpasim, u16 val)
+{
+ return __cpu_to_virtio16(vdpasim_is_little_endian(vdpasim), val);
+}
+
static struct vdpasim *vdpasim_dev;
static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
@@ -306,7 +324,6 @@ static const struct vdpa_config_ops vdpasim_net_config_ops;
static struct vdpasim *vdpasim_create(void)
{
- struct virtio_net_config *config;
struct vdpasim *vdpasim;
struct device *dev;
int ret = -ENOMEM;
@@ -331,10 +348,7 @@ static struct vd...
2020 Aug 05
0
[PATCH v3 22/38] vdpa_sim: fix endian-ness of config space
...16 val)
+{
+ return __virtio16_to_cpu(vdpasim_is_little_endian(vdpasim), val);
+}
+
+static inline __virtio16 cpu_to_vdpasim16(struct vdpasim *vdpasim, u16 val)
+{
+ return __cpu_to_virtio16(vdpasim_is_little_endian(vdpasim), val);
+}
+
static struct vdpasim *vdpasim_dev;
static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
@@ -306,7 +324,6 @@ static const struct vdpa_config_ops vdpasim_net_config_ops;
static struct vdpasim *vdpasim_create(void)
{
- struct virtio_net_config *config;
struct vdpasim *vdpasim;
struct device *dev;
int ret = -ENOMEM;
@@ -331,10 +348,7 @@ static struct vd...
2023 Mar 23
1
[PATCH v3 8/8] vdpa_sim: add support for user VA
...ork *mm_work)
> +{
> + struct kthread_work *work = &mm_work->work;
> +
> + kthread_init_work(work, vdpasim_mm_work_fn);
> + kthread_queue_work(vdpasim->worker, work);
> +
> + kthread_flush_work(work);
> +}
> +
> static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
> {
> return container_of(vdpa, struct vdpasim, vdpa);
> @@ -59,8 +93,10 @@ static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
> {
> struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
> uint16_t las...
2020 Aug 05
0
[PATCH v2 22/24] vdpa_sim: fix endian-ness of config space
...}
> > +
> > +static inline __virtio16 cpu_to_vdpasim16(struct vdpasim *vdpasim, u16 val)
> > +{
> > + return __cpu_to_virtio16(vdpasim_is_little_endian(vdpasim), val);
> > +}
> > +
> > static struct vdpasim *vdpasim_dev;
> > static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
> > @@ -306,7 +324,6 @@ static const struct vdpa_config_ops vdpasim_net_config_ops;
> > static struct vdpasim *vdpasim_create(void)
> > {
> > - struct virtio_net_config *config;
> > struct vdpasim *vdpasim;
> > struct device *d...
2020 Jul 31
0
[PATCH] vdpasim: protect concurrent access to iommu iotlb
...;vdpasim->iommu_lock);
return 0;
err:
vhost_iotlb_reset(vdpasim->iommu);
+ spin_unlock(&vdpasim->iommu_lock);
return ret;
}
@@ -552,16 +568,23 @@ static int vdpasim_dma_map(struct vdpa_device *vdpa, u64 iova, u64 size,
u64 pa, u32 perm)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
+ int ret;
- return vhost_iotlb_add_range(vdpasim->iommu, iova,
- iova + size - 1, pa, perm);
+ spin_lock(&vdpasim->iommu_lock);
+ ret = vhost_iotlb_add_range(vdpasim->iommu, iova, iova + size - 1, pa,
+ perm);
+ spin_unlock(&vdpasim->iommu_lock);
+
+ ret...
2023 Mar 14
1
[PATCH v2 8/8] vdpa_sim: add support for user VA
...m_bound;
> + mm_work.bind = false;
Can we simply use mm_work.mm = NULL for unbinding?
> +
> + vdpasim_worker_queue_mm(vdpasim, &mm_work);
> +
> + vdpasim->mm_bound = NULL;
And change the mm_bound in the worker?
Thanks
> +}
> static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
> {
> return container_of(vdpa, struct vdpasim, vdpa);
> @@ -59,8 +126,10 @@ static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
> {
> struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
> uint16_t la...