// SPDX-License-Identifier: GPL-2.0-only
/*
* VDPA device simulator core.
*
* Copyright (c) 2020, Red Hat Inc. All rights reserved.
* Author: Jason Wang <[email protected]>
*
*/
#include <linux/init.h>
#include <linux/module.h>
#include <linux/device.h>
#include <linux/kernel.h>
#include <linux/kthread.h>
#include <linux/slab.h>
#include <linux/dma-map-ops.h>
#include <linux/vringh.h>
#include <linux/vdpa.h>
#include <linux/vhost_iotlb.h>
#include <uapi/linux/vdpa.h>
#include <uapi/linux/vhost_types.h>
#include "vdpa_sim.h"
#define DRV_VERSION "0.1"
#define DRV_AUTHOR "Jason Wang <[email protected]>"
#define DRV_DESC "vDPA Device Simulator core"
#define DRV_LICENSE "GPL v2"
static int batch_mapping = 1;
module_param(batch_mapping, int, 0444);
MODULE_PARM_DESC(batch_mapping, "Batched mapping 1 -Enable; 0 - Disable");
static int max_iotlb_entries = 2048;
module_param(max_iotlb_entries, int, 0444);
MODULE_PARM_DESC(max_iotlb_entries,
"Maximum number of iotlb entries for each address space. 0 means unlimited. (default: 2048)");
static bool use_va = true;
module_param(use_va, bool, 0444);
MODULE_PARM_DESC(use_va, "Enable/disable the device's ability to use VA");
#define VDPASIM_QUEUE_ALIGN PAGE_SIZE
#define VDPASIM_QUEUE_MAX 256
#define VDPASIM_VENDOR_ID 0
struct vdpasim_mm_work {
struct kthread_work work;
struct vdpasim *vdpasim;
struct mm_struct *mm_to_bind;
int ret;
};
static void vdpasim_mm_work_fn(struct kthread_work *work)
{
struct vdpasim_mm_work *mm_work =
container_of(work, struct vdpasim_mm_work, work);
struct vdpasim *vdpasim = mm_work->vdpasim;
mm_work->ret = 0;
//TODO: should we attach the cgroup of the mm owner?
vdpasim->mm_bound = mm_work->mm_to_bind;
}
static void vdpasim_worker_change_mm_sync(struct vdpasim *vdpasim,
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);
}
static void vdpasim_vq_notify(struct vringh *vring)
{
struct vdpasim_virtqueue *vq =
container_of(vring, struct vdpasim_virtqueue, vring);
if (!vq->cb)
return;
vq->cb(vq->private);
}
static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
{
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
uint16_t last_avail_idx = vq->vring.last_avail_idx;
struct vring_desc *desc = (struct vring_desc *)
(uintptr_t)vq->desc_addr;
struct vring_avail *avail = (struct vring_avail *)
(uintptr_t)vq->driver_addr;
struct vring_used *used = (struct vring_used *)
(uintptr_t)vq->device_addr;
if (use_va && vdpasim->mm_bound) {
vringh_init_iotlb_va(&vq->vring, vdpasim->features, vq->num,
true, desc, avail, used);
} else {
vringh_init_iotlb(&vq->vring, vdpasim->features, vq->num,
true, desc, avail, used);
}
vq->vring.last_avail_idx = last_avail_idx;
/*
* Since vdpa_sim does not support receive inflight descriptors as a
* destination of a migration, let's set both avail_idx and used_idx
* the same at vq start. This is how vhost-user works in a
* VHOST_SET_VRING_BASE call.
*
* Although the simple fix is to set last_used_idx at
* vdpasim_set_vq_state, it would be reset at vdpasim_queue_ready.
*/
vq->vring.last_used_idx = last_avail_idx;
vq->vring.notify = vdpasim_vq_notify;
}
static void vdpasim_vq_reset(struct vdpasim *vdpasim,
struct vdpasim_virtqueue *vq)
{
vq->ready = false;
vq->desc_addr = 0;
vq->driver_addr = 0;
vq->device_addr = 0;
vq->cb = NULL;
vq->private = NULL;
vringh_init_iotlb(&vq->vring, vdpasim->dev_attr.supported_features,
VDPASIM_QUEUE_MAX, false, NULL, NULL, NULL);
vq->vring.notify = NULL;
}
static void vdpasim_do_reset(struct vdpasim *vdpasim, u32 flags)
{
int i;
spin_lock(&vdpasim->iommu_lock);
for (i = 0; i < vdpasim->dev_attr.nvqs; i++) {
vdpasim_vq_reset(vdpasim, &vdpasim->vqs[i]);
vringh_set_iotlb(&vdpasim->vqs[i].vring, &vdpasim->iommu[0],
&vdpasim->iommu_lock);
}
if (flags & VDPA_RESET_F_CLEAN_MAP) {
for (i = 0; i < vdpasim->dev_attr.nas; i++) {
vhost_iotlb_reset(&vdpasim->iommu[i]);
vhost_iotlb_add_range(&vdpasim->iommu[i], 0, ULONG_MAX,
0, VHOST_MAP_RW);
vdpasim->iommu_pt[i] = true;
}
}
vdpasim->running = false;
spin_unlock(&vdpasim->iommu_lock);
vdpasim->features = 0;
vdpasim->status = 0;
++vdpasim->generation;
}
static const struct vdpa_config_ops vdpasim_config_ops;
static const struct vdpa_config_ops vdpasim_batch_config_ops;
static void vdpasim_work_fn(struct kthread_work *work)
{
struct vdpasim *vdpasim = container_of(work, struct vdpasim, work);
struct mm_struct *mm = vdpasim->mm_bound;
if (use_va && mm) {
if (!mmget_not_zero(mm))
return;
kthread_use_mm(mm);
}
vdpasim->dev_attr.work_fn(vdpasim);
if (use_va && mm) {
kthread_unuse_mm(mm);
mmput(mm);
}
}
struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr,
const struct vdpa_dev_set_config *config)
{
const struct vdpa_config_ops *ops;
struct vdpa_device *vdpa;
struct vdpasim *vdpasim;
struct device *dev;
int i, ret = -ENOMEM;
if (!dev_attr->alloc_size)
return ERR_PTR(-EINVAL);
if (config->mask & BIT_ULL(VDPA_ATTR_DEV_FEATURES)) {
if (config->device_features &
~dev_attr->supported_features)
return ERR_PTR(-EINVAL);
dev_attr->supported_features =
config->device_features;
}
if (batch_mapping)
ops = &vdpasim_batch_config_ops;
else
ops = &vdpasim_config_ops;
vdpa = __vdpa_alloc_device(NULL, ops,
dev_attr->ngroups, dev_attr->nas,
dev_attr->alloc_size,
dev_attr->name, use_va);
if (IS_ERR(vdpa)) {
ret = PTR_ERR(vdpa);
goto err_alloc;
}
vdpasim = vdpa_to_sim(vdpa);
vdpasim->dev_attr = *dev_attr;
dev = &vdpasim->vdpa.dev;
kthread_init_work(&vdpasim->work, vdpasim_work_fn);
vdpasim->worker = kthread_create_worker(0, "vDPA sim worker: %s",
dev_attr->name);
if (IS_ERR(vdpasim->worker))
goto err_iommu;
mutex_init(&vdpasim->mutex);
spin_lock_init(&vdpasim->iommu_lock);
dev->dma_mask = &dev->coherent_dma_mask;
if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)))
goto err_iommu;
vdpasim->vdpa.mdev = dev_attr->mgmt_dev;
vdpasim->config = kzalloc(dev_attr->config_size, GFP_KERNEL);
if (!vdpasim->config)
goto err_iommu;
vdpasim->vqs = kcalloc(dev_attr->nvqs, sizeof(struct vdpasim_virtqueue),
GFP_KERNEL);
if (!vdpasim->vqs)
goto err_iommu;
vdpasim->iommu = kmalloc_array(vdpasim->dev_attr.nas,
sizeof(*vdpasim->iommu), GFP_KERNEL);
if (!vdpasim->iommu)
goto err_iommu;
vdpasim->iommu_pt = kmalloc_array(vdpasim->dev_attr.nas,
sizeof(*vdpasim->iommu_pt), GFP_KERNEL);
if (!vdpasim->iommu_pt)
goto err_iommu;
for (i = 0; i < vdpasim->dev_attr.nas; i++) {
vhost_iotlb_init(&vdpasim->iommu[i], max_iotlb_entries, 0);
vhost_iotlb_add_range(&vdpasim->iommu[i], 0, ULONG_MAX, 0,
VHOST_MAP_RW);
vdpasim->iommu_pt[i] = true;
}
for (i = 0; i < dev_attr->nvqs; i++)
vringh_set_iotlb(&vdpasim->vqs[i].vring, &vdpasim->iommu[0],
&vdpasim->iommu_lock);
vdpasim->vdpa.dma_dev = dev;
return vdpasim;
err_iommu:
put_device(dev);
err_alloc:
return ERR_PTR(ret);
}
EXPORT_SYMBOL_GPL(vdpasim_create);
void vdpasim_schedule_work(struct vdpasim *vdpasim)
{
kthread_queue_work(vdpasim->worker, &vdpasim->work);
}
EXPORT_SYMBOL_GPL(vdpasim_schedule_work);
static int vdpasim_set_vq_address(struct vdpa_device *vdpa, u16 idx,
u64 desc_area, u64 driver_area,
u64 device_area)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
vq->desc_addr = desc_area;
vq->driver_addr = driver_area;
vq->device_addr = device_area;
return 0;
}
static void vdpasim_set_vq_num(struct vdpa_device *vdpa, u16 idx, u32 num)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
vq->num = num;
}
static u16 vdpasim_get_vq_size(struct vdpa_device *vdpa, u16 idx)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
if (vdpasim->status & VIRTIO_CONFIG_S_DRIVER_OK)
return vq->num;
else
return VDPASIM_QUEUE_MAX;
}
static void vdpasim_kick_vq(struct vdpa_device *vdpa, u16 idx)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
if (!vdpasim->running &&
(vdpasim->status & VIRTIO_CONFIG_S_DRIVER_OK)) {
vdpasim->pending_kick = true;
return;
}
if (vq->ready)
vdpasim_schedule_work(vdpasim);
}
static void vdpasim_set_vq_cb(struct vdpa_device *vdpa, u16 idx,
struct vdpa_callback *cb)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
vq->cb = cb->callback;
vq->private = cb->private;
}
static void vdpasim_set_vq_ready(struct vdpa_device *vdpa, u16 idx, bool ready)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
bool old_ready;
mutex_lock(&vdpasim->mutex);
old_ready = vq->ready;
vq->ready = ready;
if (vq->ready && !old_ready) {
vdpasim_queue_ready(vdpasim, idx);
}
mutex_unlock(&vdpasim->mutex);
}
static bool vdpasim_get_vq_ready(struct vdpa_device *vdpa, u16 idx)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
return vq->ready;
}
static int vdpasim_set_vq_state(struct vdpa_device *vdpa, u16 idx,
const struct vdpa_vq_state *state)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
struct vringh *vrh = &vq->vring;
mutex_lock(&vdpasim->mutex);
vrh->last_avail_idx = state->split.avail_index;
mutex_unlock(&vdpasim->mutex);
return 0;
}
static int vdpasim_get_vq_state(struct vdpa_device *vdpa, u16 idx,
struct vdpa_vq_state *state)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
struct vringh *vrh = &vq->vring;
state->split.avail_index = vrh->last_avail_idx;
return 0;
}
static int vdpasim_get_vq_stats(struct vdpa_device *vdpa, u16 idx,
struct sk_buff *msg,
struct netlink_ext_ack *extack)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
if (vdpasim->dev_attr.get_stats)
return vdpasim->dev_attr.get_stats(vdpasim, idx,
msg, extack);
return -EOPNOTSUPP;
}
static u32 vdpasim_get_vq_align(struct vdpa_device *vdpa)
{
return VDPASIM_QUEUE_ALIGN;
}
static u32 vdpasim_get_vq_group(struct vdpa_device *vdpa, u16 idx)
{
/* RX and TX belongs to group 0, CVQ belongs to group 1 */
if (idx == 2)
return 1;
else
return 0;
}
static u64 vdpasim_get_device_features(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
return vdpasim->dev_attr.supported_features;
}
static u64 vdpasim_get_backend_features(const struct vdpa_device *vdpa)
{
return BIT_ULL(VHOST_BACKEND_F_ENABLE_AFTER_DRIVER_OK);
}
static int vdpasim_set_driver_features(struct vdpa_device *vdpa, u64 features)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
/* DMA mapping must be done by driver */
if (!(features & (1ULL << VIRTIO_F_ACCESS_PLATFORM)))
return -EINVAL;
vdpasim->features = features & vdpasim->dev_attr.supported_features;
return 0;
}
static u64 vdpasim_get_driver_features(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
return vdpasim->features;
}
static void vdpasim_set_config_cb(struct vdpa_device *vdpa,
struct vdpa_callback *cb)
{
/* We don't support config interrupt */
}
static u16 vdpasim_get_vq_num_max(struct vdpa_device *vdpa)
{
return VDPASIM_QUEUE_MAX;
}
static u32 vdpasim_get_device_id(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
return vdpasim->dev_attr.id;
}
static u32 vdpasim_get_vendor_id(struct vdpa_device *vdpa)
{
return VDPASIM_VENDOR_ID;
}
static u8 vdpasim_get_status(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
u8 status;
mutex_lock(&vdpasim->mutex);
status = vdpasim->status;
mutex_unlock(&vdpasim->mutex);
return status;
}
static void vdpasim_set_status(struct vdpa_device *vdpa, u8 status)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
mutex_lock(&vdpasim->mutex);
vdpasim->status = status;
vdpasim->running = (status & VIRTIO_CONFIG_S_DRIVER_OK) != 0;
mutex_unlock(&vdpasim->mutex);
}
static int vdpasim_compat_reset(struct vdpa_device *vdpa, u32 flags)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
mutex_lock(&vdpasim->mutex);
vdpasim->status = 0;
vdpasim_do_reset(vdpasim, flags);
mutex_unlock(&vdpasim->mutex);
return 0;
}
static int vdpasim_reset(struct vdpa_device *vdpa)
{
return vdpasim_compat_reset(vdpa, 0);
}
static int vdpasim_suspend(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
mutex_lock(&vdpasim->mutex);
vdpasim->running = false;
mutex_unlock(&vdpasim->mutex);
return 0;
}
static int vdpasim_resume(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
int i;
mutex_lock(&vdpasim->mutex);
vdpasim->running = true;
if (vdpasim->pending_kick) {
/* Process pending descriptors */
for (i = 0; i < vdpasim->dev_attr.nvqs; ++i)
vdpasim_kick_vq(vdpa, i);
vdpasim->pending_kick = false;
}
mutex_unlock(&vdpasim->mutex);
return 0;
}
static size_t vdpasim_get_config_size(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
return vdpasim->dev_attr.config_size;
}
static void vdpasim_get_config(struct vdpa_device *vdpa, unsigned int offset,
void *buf, unsigned int len)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
if (offset + len > vdpasim->dev_attr.config_size)
return;
if (vdpasim->dev_attr.get_config)
vdpasim->dev_attr.get_config(vdpasim, vdpasim->config);
memcpy(buf, vdpasim->config + offset, len);
}
static void vdpasim_set_config(struct vdpa_device *vdpa, unsigned int offset,
const void *buf, unsigned int len)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
if (offset + len > vdpasim->dev_attr.config_size)
return;
memcpy(vdpasim->config + offset, buf, len);
if (vdpasim->dev_attr.set_config)
vdpasim->dev_attr.set_config(vdpasim, vdpasim->config);
}
static u32 vdpasim_get_generation(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
return vdpasim->generation;
}
static struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
{
struct vdpa_iova_range range = {
.first = 0ULL,
.last = ULLONG_MAX,
};
return range;
}
static int vdpasim_set_group_asid(struct vdpa_device *vdpa, unsigned int group,
unsigned int asid)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vhost_iotlb *iommu;
int i;
if (group > vdpasim->dev_attr.ngroups)
return -EINVAL;
if (asid >= vdpasim->dev_attr.nas)
return -EINVAL;
iommu = &vdpasim->iommu[asid];
mutex_lock(&vdpasim->mutex);
for (i = 0; i < vdpasim->dev_attr.nvqs; i++)
if (vdpasim_get_vq_group(vdpa, i) == group)
vringh_set_iotlb(&vdpasim->vqs[i].vring, iommu,
&vdpasim->iommu_lock);
mutex_unlock(&vdpasim->mutex);
return 0;
}
static int vdpasim_set_map(struct vdpa_device *vdpa, unsigned int asid,
struct vhost_iotlb *iotlb)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vhost_iotlb_map *map;
struct vhost_iotlb *iommu;
u64 start = 0ULL, last = 0ULL - 1;
int ret;
if (asid >= vdpasim->dev_attr.nas)
return -EINVAL;
spin_lock(&vdpasim->iommu_lock);
iommu = &vdpasim->iommu[asid];
vhost_iotlb_reset(iommu);
vdpasim->iommu_pt[asid] = false;
for (map = vhost_iotlb_itree_first(iotlb, start, last); map;
map = vhost_iotlb_itree_next(map, start, last)) {
ret = vhost_iotlb_add_range(iommu, map->start,
map->last, map->addr, map->perm);
if (ret)
goto err;
}
spin_unlock(&vdpasim->iommu_lock);
return 0;
err:
vhost_iotlb_reset(iommu);
spin_unlock(&vdpasim->iommu_lock);
return ret;
}
static int vdpasim_reset_map(struct vdpa_device *vdpa, unsigned int asid)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
if (asid >= vdpasim->dev_attr.nas)
return -EINVAL;
spin_lock(&vdpasim->iommu_lock);
if (vdpasim->iommu_pt[asid])
goto out;
vhost_iotlb_reset(&vdpasim->iommu[asid]);
vhost_iotlb_add_range(&vdpasim->iommu[asid], 0, ULONG_MAX,
0, VHOST_MAP_RW);
vdpasim->iommu_pt[asid] = true;
out:
spin_unlock(&vdpasim->iommu_lock);
return 0;
}
static int vdpasim_bind_mm(struct vdpa_device *vdpa, struct mm_struct *mm)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_mm_work mm_work;
mm_work.vdpasim = vdpasim;
mm_work.mm_to_bind = mm;
vdpasim_worker_change_mm_sync(vdpasim, &mm_work);
return mm_work.ret;
}
static void vdpasim_unbind_mm(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
struct vdpasim_mm_work mm_work;
mm_work.vdpasim = vdpasim;
mm_work.mm_to_bind = NULL;
vdpasim_worker_change_mm_sync(vdpasim, &mm_work);
}
static int vdpasim_dma_map(struct vdpa_device *vdpa, unsigned int asid,
u64 iova, u64 size,
u64 pa, u32 perm, void *opaque)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
int ret;
if (asid >= vdpasim->dev_attr.nas)
return -EINVAL;
spin_lock(&vdpasim->iommu_lock);
if (vdpasim->iommu_pt[asid]) {
vhost_iotlb_reset(&vdpasim->iommu[asid]);
vdpasim->iommu_pt[asid] = false;
}
ret = vhost_iotlb_add_range_ctx(&vdpasim->iommu[asid], iova,
iova + size - 1, pa, perm, opaque);
spin_unlock(&vdpasim->iommu_lock);
return ret;
}
static int vdpasim_dma_unmap(struct vdpa_device *vdpa, unsigned int asid,
u64 iova, u64 size)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
if (asid >= vdpasim->dev_attr.nas)
return -EINVAL;
if (vdpasim->iommu_pt[asid]) {
vhost_iotlb_reset(&vdpasim->iommu[asid]);
vdpasim->iommu_pt[asid] = false;
}
spin_lock(&vdpasim->iommu_lock);
vhost_iotlb_del_range(&vdpasim->iommu[asid], iova, iova + size - 1);
spin_unlock(&vdpasim->iommu_lock);
return 0;
}
static void vdpasim_free(struct vdpa_device *vdpa)
{
struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
int i;
kthread_cancel_work_sync(&vdpasim->work);
kthread_destroy_worker(vdpasim->worker);
for (i = 0; i < vdpasim->dev_attr.nvqs; i++) {
vringh_kiov_cleanup(&vdpasim->vqs[i].out_iov);
vringh_kiov_cleanup(&vdpasim->vqs[i].in_iov);
}
vdpasim->dev_attr.free(vdpasim);
for (i = 0; i < vdpasim->dev_attr.nas; i++)
vhost_iotlb_reset(&vdpasim->iommu[i]);
kfree(vdpasim->iommu);
kfree(vdpasim->iommu_pt);
kfree(vdpasim->vqs);
kfree(vdpasim->config);
}
static const struct vdpa_config_ops vdpasim_config_ops = {
.set_vq_address = vdpasim_set_vq_address,
.set_vq_num = vdpasim_set_vq_num,
.kick_vq = vdpasim_kick_vq,
.set_vq_cb = vdpasim_set_vq_cb,
.set_vq_ready = vdpasim_set_vq_ready,
.get_vq_ready = vdpasim_get_vq_ready,
.set_vq_state = vdpasim_set_vq_state,
.get_vendor_vq_stats = vdpasim_get_vq_stats,
.get_vq_state = vdpasim_get_vq_state,
.get_vq_align = vdpasim_get_vq_align,
.get_vq_group = vdpasim_get_vq_group,
.get_device_features = vdpasim_get_device_features,
.get_backend_features = vdpasim_get_backend_features,
.set_driver_features = vdpasim_set_driver_features,
.get_driver_features = vdpasim_get_driver_features,
.set_config_cb = vdpasim_set_config_cb,
.get_vq_num_max = vdpasim_get_vq_num_max,
.get_vq_size = vdpasim_get_vq_size,
.get_device_id = vdpasim_get_device_id,
.get_vendor_id = vdpasim_get_vendor_id,
.get_status = vdpasim_get_status,
.set_status = vdpasim_set_status,
.reset = vdpasim_reset,
.compat_reset = vdpasim_compat_reset,
.suspend = vdpasim_suspend,
.resume = vdpasim_resume,
.get_config_size = vdpasim_get_config_size,
.get_config = vdpasim_get_config,
.set_config = vdpasim_set_config,
.get_generation = vdpasim_get_generation,
.get_iova_range = vdpasim_get_iova_range,
.set_group_asid = vdpasim_set_group_asid,
.dma_map = vdpasim_dma_map,
.dma_unmap = vdpasim_dma_unmap,
.reset_map = vdpasim_reset_map,
.bind_mm = vdpasim_bind_mm,
.unbind_mm = vdpasim_unbind_mm,
.free = vdpasim_free,
};
static const struct vdpa_config_ops vdpasim_batch_config_ops = {
.set_vq_address = vdpasim_set_vq_address,
.set_vq_num = vdpasim_set_vq_num,
.kick_vq = vdpasim_kick_vq,
.set_vq_cb = vdpasim_set_vq_cb,
.set_vq_ready = vdpasim_set_vq_ready,
.get_vq_ready = vdpasim_get_vq_ready,
.set_vq_state = vdpasim_set_vq_state,
.get_vendor_vq_stats = vdpasim_get_vq_stats,
.get_vq_state = vdpasim_get_vq_state,
.get_vq_align = vdpasim_get_vq_align,
.get_vq_group = vdpasim_get_vq_group,
.get_device_features = vdpasim_get_device_features,
.get_backend_features = vdpasim_get_backend_features,
.set_driver_features = vdpasim_set_driver_features,
.get_driver_features = vdpasim_get_driver_features,
.set_config_cb = vdpasim_set_config_cb,
.get_vq_num_max = vdpasim_get_vq_num_max,
.get_device_id = vdpasim_get_device_id,
.get_vendor_id = vdpasim_get_vendor_id,
.get_status = vdpasim_get_status,
.set_status = vdpasim_set_status,
.reset = vdpasim_reset,
.compat_reset = vdpasim_compat_reset,
.suspend = vdpasim_suspend,
.resume = vdpasim_resume,
.get_config_size = vdpasim_get_config_size,
.get_config = vdpasim_get_config,
.set_config = vdpasim_set_config,
.get_generation = vdpasim_get_generation,
.get_iova_range = vdpasim_get_iova_range,
.set_group_asid = vdpasim_set_group_asid,
.set_map = vdpasim_set_map,
.reset_map = vdpasim_reset_map,
.bind_mm = vdpasim_bind_mm,
.unbind_mm = vdpasim_unbind_mm,
.free = vdpasim_free,
};
MODULE_VERSION(DRV_VERSION);
MODULE_LICENSE(DRV_LICENSE);
MODULE_AUTHOR(DRV_AUTHOR);
MODULE_DESCRIPTION(DRV_DESC);
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