Displaying 19 results from an estimated 19 matches for "err_iommu".
2020 Jul 11
0
[vhost:config-endian 33/36] drivers/vdpa/vdpa_sim/vdpa_sim.c:335:21: sparse: sparse: incorrect type in assignment (different base types)
...vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 326 vdpasim->iommu = vhost_iotlb_alloc(2048, 0);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 327 if (!vdpasim->iommu)
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 328 goto err_iommu;
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 329
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26 330 vdpasim->buffer = kmalloc(PAGE_SIZE, GFP_KERNEL);
2c53d0f64c06f4 drivers/virtio/vdpa/vdpa_sim/vdpa_sim.c Jason Wang 2020-03-26...
2020 Jul 15
2
[PATCH RFC don't apply] vdpa_sim: endian-ness for config space
...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_vdpasim16(vdpasim, VIRTIO_NET_S_LINK_UP);
eth_random_addr(config->mac);
vringh_set_iotlb(&vdpasim...
2020 Jul 15
2
[PATCH RFC don't apply] vdpa_sim: endian-ness for config space
...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_vdpasim16(vdpasim, VIRTIO_NET_S_LINK_UP);
eth_random_addr(config->mac);
vringh_set_iotlb(&vdpasim...
2020 Aug 05
3
[PATCH v2 22/24] vdpa_sim: fix endian-ness of config space
...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 vdpasim *vdpasim_create(void)
> if (!vdpasim->buffer)
> goto err_iommu;
>
> - config = &vdpasim->config;
> - config->mtu = 1500;
> - config->status = VIRTIO_NET_S_LINK_UP;
> - eth_random_addr(config->mac);
> + eth_random_addr(vdpasim->config.mac);
>
> vringh_set_iotlb(&vdpasim->vqs[0].vring, vdpasim->iommu)...
2020 Aug 05
3
[PATCH v2 22/24] vdpa_sim: fix endian-ness of config space
...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 vdpasim *vdpasim_create(void)
> if (!vdpasim->buffer)
> goto err_iommu;
>
> - config = &vdpasim->config;
> - config->mtu = 1500;
> - config->status = VIRTIO_NET_S_LINK_UP;
> - eth_random_addr(config->mac);
> + eth_random_addr(vdpasim->config.mac);
>
> vringh_set_iotlb(&vdpasim->vqs[0].vring, vdpasim->iommu)...
2023 Jan 29
1
[PATCH v3 2/2] vdpasim: support doorbell mapping
...ps);
> vdpasim->vdpa.mdev = dev_attr->mgmt_dev;
>
> + INIT_DELAYED_WORK(&vdpasim->notify_work, vdpasim_notify_work);
> +
> + vdpasim->notify = __get_free_page(GFP_KERNEL | __GFP_ZERO);
> + if (!vdpasim->notify)
> + goto err_iommu;
We can simply avoid the advertising notification area in this case.
> + *(u16 *)vdpasim->notify = VDPASIM_NOTIFY_DEFVAL;
WRITE_ONCE()?
> +
> vdpasim->config = kzalloc(dev_attr->config_size, GFP_KERNEL);
> if (!vdpasim->config)
>...
2020 Jul 16
1
[PATCH RFC don't apply] vdpa_sim: endian-ness for config space
...n __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_vdpasim16(vdpasim, VIRTIO_NET_S_LINK_UP);
> > eth_ra...
2023 Mar 21
3
[PATCH v3 5/8] vdpa_sim: make devices agnostic for work management
Let's move work management inside the vdpa_sim core.
This way we can easily change how we manage the works, without
having to change the devices each time.
Acked-by: Eugenio P??rez Martin <eperezma at redhat.com>
Acked-by: Jason Wang <jasowang at redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare at redhat.com>
---
drivers/vdpa/vdpa_sim/vdpa_sim.h | 3 ++-
2023 Mar 02
1
[PATCH v2 7/8] vdpa_sim: replace the spinlock with a mutex to protect the state
...dpa_sim/vdpa_sim.c b/drivers/vdpa/vdpa_sim/vdpa_sim.c
index 6feb29726c2a..a28103a67ae7 100644
--- a/drivers/vdpa/vdpa_sim/vdpa_sim.c
+++ b/drivers/vdpa/vdpa_sim/vdpa_sim.c
@@ -166,7 +166,7 @@ struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr,
if (IS_ERR(vdpasim->worker))
goto err_iommu;
- spin_lock_init(&vdpasim->lock);
+ mutex_init(&vdpasim->mutex);
spin_lock_init(&vdpasim->iommu_lock);
dev = &vdpasim->vdpa.dev;
@@ -275,13 +275,13 @@ static void vdpasim_set_vq_ready(struct vdpa_device *vdpa, u16 idx, bool ready)
struct vdpasim_virtqueue *vq...
2020 Jul 15
0
[PATCH RFC don't apply] vdpa_sim: endian-ness for config space
...)
> +{
> + 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_vdpasim16(vdpasim, VIRTIO_NET_S_LINK_UP);
> eth_random_addr(config->m...
2020 Aug 03
0
[PATCH v2 22/24] vdpa_sim: fix endian-ness of config space
...uct 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 vdpasim *vdpasim_create(void)
if (!vdpasim->buffer)
goto err_iommu;
- config = &vdpasim->config;
- config->mtu = 1500;
- config->status = VIRTIO_NET_S_LINK_UP;
- eth_random_addr(config->mac);
+ eth_random_addr(vdpasim->config.mac);
vringh_set_iotlb(&vdpasim->vqs[0].vring, vdpasim->iommu);
vringh_set_iotlb(&vdpasim->vqs[1...
2020 Aug 05
0
[PATCH v3 22/38] vdpa_sim: fix endian-ness of config space
...uct 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 vdpasim *vdpasim_create(void)
if (!vdpasim->buffer)
goto err_iommu;
- config = &vdpasim->config;
- config->mtu = 1500;
- config->status = VIRTIO_NET_S_LINK_UP;
- eth_random_addr(config->mac);
+ eth_random_addr(vdpasim->config.mac);
vringh_set_iotlb(&vdpasim->vqs[0].vring, vdpasim->iommu);
vringh_set_iotlb(&vdpasim->vqs[1...
2020 Aug 05
0
[PATCH v2 22/24] vdpa_sim: fix endian-ness of config space
...oid)
> > {
> > - struct virtio_net_config *config;
> > struct vdpasim *vdpasim;
> > struct device *dev;
> > int ret = -ENOMEM;
> > @@ -331,10 +348,7 @@ static struct vdpasim *vdpasim_create(void)
> > if (!vdpasim->buffer)
> > goto err_iommu;
> > - config = &vdpasim->config;
> > - config->mtu = 1500;
> > - config->status = VIRTIO_NET_S_LINK_UP;
> > - eth_random_addr(config->mac);
> > + eth_random_addr(vdpasim->config.mac);
> > vringh_set_iotlb(&vdpasim->vqs[0].vring, vdpa...
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
2023 Apr 07
2
[PATCH 0/2] vdpa_sim_blk: support shared backend
This series is mainly for testing live migration between 2 vdpa_sim_blk
devices.
The first patch is preparation and moves the buffer allocation into devices,
the second patch adds the `shared_buffer_mutex` parameter to vdpa_sim_blk to
use the same ramdisk for all devices.
Tested with QEMU v8.0.0-rc2 in this way:
modprobe vhost_vdpa
modprobe vdpa_sim_blk shared_backend=true
vdpa dev add mgmtdev
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
2020 Aug 03
51
[PATCH v2 00/24] virtio: config space endian-ness cleanup
Config space endian-ness is currently a mess: fields are
not tagged with the correct endian-ness so it's easy
to make mistakes like instanciating config space in
native endian-ness.
The following patches adding sparse tagging are currently in my tree.
Lightly tested.
As a follow-up, I plan to add new APIs that handle modern config space
in a more efficient way (bypassing the version check).
2020 Sep 24
30
[RFC PATCH 00/24] Control VQ support in vDPA
Hi All:
This series tries to add the support for control virtqueue in vDPA.
Control virtqueue is used by networking device for accepting various
commands from the driver. It's a must to support multiqueue and other
configurations.
When used by vhost-vDPA bus driver for VM, the control virtqueue
should be shadowed via userspace VMM (Qemu) instead of being assigned
directly to Guest. This is
2020 Sep 24
30
[RFC PATCH 00/24] Control VQ support in vDPA
Hi All:
This series tries to add the support for control virtqueue in vDPA.
Control virtqueue is used by networking device for accepting various
commands from the driver. It's a must to support multiqueue and other
configurations.
When used by vhost-vDPA bus driver for VM, the control virtqueue
should be shadowed via userspace VMM (Qemu) instead of being assigned
directly to Guest. This is