drivers/vdpa/vdpa_sim/vdpa_sim.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * VDPA device simulator core.
   4  *
   5  * Copyright (c) 2020, Red Hat Inc. All rights reserved.
   6  *     Author: Jason Wang <jasowang@redhat.com>
   7  *
   8  */
   9
  10 #include <linux/init.h>
  11 #include <linux/module.h>
  12 #include <linux/device.h>
  13 #include <linux/kernel.h>
  14 #include <linux/slab.h>
  15 #include <linux/sched.h>
  16 #include <linux/dma-map-ops.h>
  17 #include <linux/vringh.h>
  18 #include <linux/vdpa.h>
  19 #include <linux/vhost_iotlb.h>
  20 #include <linux/iova.h>
  21
  22 #include "vdpa_sim.h"
  23
  24 #define DRV_VERSION  "0.1"
  25 #define DRV_AUTHOR   "Jason Wang <jasowang@redhat.com>"
  26 #define DRV_DESC     "vDPA Device Simulator core"
  27 #define DRV_LICENSE  "GPL v2"
  28
  29 static int batch_mapping = 1;
  30 module_param(batch_mapping, int, 0444);
  31 MODULE_PARM_DESC(batch_mapping, "Batched mapping 1 -Enable; 0 - Disable");
  32
  33 static int max_iotlb_entries = 2048;
  34 module_param(max_iotlb_entries, int, 0444);
  35 MODULE_PARM_DESC(max_iotlb_entries,
  36                  "Maximum number of iotlb entries. 0 means unlimited. (default: 2048)");
  37
  38 #define VDPASIM_QUEUE_ALIGN PAGE_SIZE
  39 #define VDPASIM_QUEUE_MAX 256
  40 #define VDPASIM_VENDOR_ID 0
  41
  42 static struct vdpasim *vdpa_to_sim(struct vdpa_device *vdpa)
  43 {
  44         return container_of(vdpa, struct vdpasim, vdpa);
  45 }
  46
  47 static struct vdpasim *dev_to_sim(struct device *dev)
  48 {
  49         struct vdpa_device *vdpa = dev_to_vdpa(dev);
  50
  51         return vdpa_to_sim(vdpa);
  52 }
  53
  54 static void vdpasim_vq_notify(struct vringh *vring)
  55 {
  56         struct vdpasim_virtqueue *vq =
  57                 container_of(vring, struct vdpasim_virtqueue, vring);
  58
  59         if (!vq->cb)
  60                 return;
  61
  62         vq->cb(vq->private);
  63 }
  64
  65 static void vdpasim_queue_ready(struct vdpasim *vdpasim, unsigned int idx)
  66 {
  67         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
  68
  69         vringh_init_iotlb(&vq->vring, vdpasim->dev_attr.supported_features,
  70                           VDPASIM_QUEUE_MAX, false,
  71                           (struct vring_desc *)(uintptr_t)vq->desc_addr,
  72                           (struct vring_avail *)
  73                           (uintptr_t)vq->driver_addr,
  74                           (struct vring_used *)
  75                           (uintptr_t)vq->device_addr);
  76
  77         vq->vring.notify = vdpasim_vq_notify;
  78 }
  79
  80 static void vdpasim_vq_reset(struct vdpasim *vdpasim,
  81                              struct vdpasim_virtqueue *vq)
  82 {
  83         vq->ready = false;
  84         vq->desc_addr = 0;
  85         vq->driver_addr = 0;
  86         vq->device_addr = 0;
  87         vq->cb = NULL;
  88         vq->private = NULL;
  89         vringh_init_iotlb(&vq->vring, vdpasim->dev_attr.supported_features,
  90                           VDPASIM_QUEUE_MAX, false, NULL, NULL, NULL);
  91
  92         vq->vring.notify = NULL;
  93 }
  94
  95 static void vdpasim_reset(struct vdpasim *vdpasim)
  96 {
  97         int i;
  98
  99         for (i = 0; i < vdpasim->dev_attr.nvqs; i++)
 100                 vdpasim_vq_reset(vdpasim, &vdpasim->vqs[i]);
 101
 102         spin_lock(&vdpasim->iommu_lock);
 103         vhost_iotlb_reset(vdpasim->iommu);
 104         spin_unlock(&vdpasim->iommu_lock);
 105
 106         vdpasim->features = 0;
 107         vdpasim->status = 0;
 108         ++vdpasim->generation;
 109 }
 110
 111 static int dir_to_perm(enum dma_data_direction dir)
 112 {
 113         int perm = -EFAULT;
 114
 115         switch (dir) {
 116         case DMA_FROM_DEVICE:
 117                 perm = VHOST_MAP_WO;
 118                 break;
 119         case DMA_TO_DEVICE:
 120                 perm = VHOST_MAP_RO;
 121                 break;
 122         case DMA_BIDIRECTIONAL:
 123                 perm = VHOST_MAP_RW;
 124                 break;
 125         default:
 126                 break;
 127         }
 128
 129         return perm;
 130 }
 131
 132 static dma_addr_t vdpasim_map_range(struct vdpasim *vdpasim, phys_addr_t paddr,
 133                                     size_t size, unsigned int perm)
 134 {
 135         struct iova *iova;
 136         dma_addr_t dma_addr;
 137         int ret;
 138
 139         /* We set the limit_pfn to the maximum (ULONG_MAX - 1) */
 140         iova = alloc_iova(&vdpasim->iova, size >> iova_shift(&vdpasim->iova),
 141                           ULONG_MAX - 1, true);
 142         if (!iova)
 143                 return DMA_MAPPING_ERROR;
 144
 145         dma_addr = iova_dma_addr(&vdpasim->iova, iova);
 146
 147         spin_lock(&vdpasim->iommu_lock);
 148         ret = vhost_iotlb_add_range(vdpasim->iommu, (u64)dma_addr,
 149                                     (u64)dma_addr + size - 1, (u64)paddr, perm);
 150         spin_unlock(&vdpasim->iommu_lock);
 151
 152         if (ret) {
 153                 __free_iova(&vdpasim->iova, iova);
 154                 return DMA_MAPPING_ERROR;
 155         }
 156
 157         return dma_addr;
 158 }
 159
 160 static void vdpasim_unmap_range(struct vdpasim *vdpasim, dma_addr_t dma_addr,
 161                                 size_t size)
 162 {
 163         spin_lock(&vdpasim->iommu_lock);
 164         vhost_iotlb_del_range(vdpasim->iommu, (u64)dma_addr,
 165                               (u64)dma_addr + size - 1);
 166         spin_unlock(&vdpasim->iommu_lock);
 167
 168         free_iova(&vdpasim->iova, iova_pfn(&vdpasim->iova, dma_addr));
 169 }
 170
 171 static dma_addr_t vdpasim_map_page(struct device *dev, struct page *page,
 172                                    unsigned long offset, size_t size,
 173                                    enum dma_data_direction dir,
 174                                    unsigned long attrs)
 175 {
 176         struct vdpasim *vdpasim = dev_to_sim(dev);
 177         phys_addr_t paddr = page_to_phys(page) + offset;
 178         int perm = dir_to_perm(dir);
 179
 180         if (perm < 0)
 181                 return DMA_MAPPING_ERROR;
 182
 183         return vdpasim_map_range(vdpasim, paddr, size, perm);
 184 }
 185
 186 static void vdpasim_unmap_page(struct device *dev, dma_addr_t dma_addr,
 187                                size_t size, enum dma_data_direction dir,
 188                                unsigned long attrs)
 189 {
 190         struct vdpasim *vdpasim = dev_to_sim(dev);
 191
 192         vdpasim_unmap_range(vdpasim, dma_addr, size);
 193 }
 194
 195 static void *vdpasim_alloc_coherent(struct device *dev, size_t size,
 196                                     dma_addr_t *dma_addr, gfp_t flag,
 197                                     unsigned long attrs)
 198 {
 199         struct vdpasim *vdpasim = dev_to_sim(dev);
 200         phys_addr_t paddr;
 201         void *addr;
 202
 203         addr = kmalloc(size, flag);
 204         if (!addr) {
 205                 *dma_addr = DMA_MAPPING_ERROR;
 206                 return NULL;
 207         }
 208
 209         paddr = virt_to_phys(addr);
 210
 211         *dma_addr = vdpasim_map_range(vdpasim, paddr, size, VHOST_MAP_RW);
 212         if (*dma_addr == DMA_MAPPING_ERROR) {
 213                 kfree(addr);
 214                 return NULL;
 215         }
 216
 217         return addr;
 218 }
 219
 220 static void vdpasim_free_coherent(struct device *dev, size_t size,
 221                                   void *vaddr, dma_addr_t dma_addr,
 222                                   unsigned long attrs)
 223 {
 224         struct vdpasim *vdpasim = dev_to_sim(dev);
 225
 226         vdpasim_unmap_range(vdpasim, dma_addr, size);
 227
 228         kfree(vaddr);
 229 }
 230
 231 static const struct dma_map_ops vdpasim_dma_ops = {
 232         .map_page = vdpasim_map_page,
 233         .unmap_page = vdpasim_unmap_page,
 234         .alloc = vdpasim_alloc_coherent,
 235         .free = vdpasim_free_coherent,
 236 };
 237
 238 static const struct vdpa_config_ops vdpasim_config_ops;
 239 static const struct vdpa_config_ops vdpasim_batch_config_ops;
 240
 241 struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr)
 242 {
 243         const struct vdpa_config_ops *ops;
 244         struct vdpasim *vdpasim;
 245         struct device *dev;
 246         int i, ret = -ENOMEM;
 247
 248         if (batch_mapping)
 249                 ops = &vdpasim_batch_config_ops;
 250         else
 251                 ops = &vdpasim_config_ops;
 252
 253         vdpasim = vdpa_alloc_device(struct vdpasim, vdpa, NULL, ops,
 254                                     dev_attr->name);
 255         if (IS_ERR(vdpasim)) {
 256                 ret = PTR_ERR(vdpasim);
 257                 goto err_alloc;
 258         }
 259
 260         vdpasim->dev_attr = *dev_attr;
 261         INIT_WORK(&vdpasim->work, dev_attr->work_fn);
 262         spin_lock_init(&vdpasim->lock);
 263         spin_lock_init(&vdpasim->iommu_lock);
 264
 265         dev = &vdpasim->vdpa.dev;
 266         dev->dma_mask = &dev->coherent_dma_mask;
 267         if (dma_set_mask_and_coherent(dev, DMA_BIT_MASK(64)))
 268                 goto err_iommu;
 269         set_dma_ops(dev, &vdpasim_dma_ops);
 270         vdpasim->vdpa.mdev = dev_attr->mgmt_dev;
 271
 272         vdpasim->config = kzalloc(dev_attr->config_size, GFP_KERNEL);
 273         if (!vdpasim->config)
 274                 goto err_iommu;
 275
 276         vdpasim->vqs = kcalloc(dev_attr->nvqs, sizeof(struct vdpasim_virtqueue),
 277                                GFP_KERNEL);
 278         if (!vdpasim->vqs)
 279                 goto err_iommu;
 280
 281         vdpasim->iommu = vhost_iotlb_alloc(max_iotlb_entries, 0);
 282         if (!vdpasim->iommu)
 283                 goto err_iommu;
 284
 285         vdpasim->buffer = kvmalloc(dev_attr->buffer_size, GFP_KERNEL);
 286         if (!vdpasim->buffer)
 287                 goto err_iommu;
 288
 289         for (i = 0; i < dev_attr->nvqs; i++)
 290                 vringh_set_iotlb(&vdpasim->vqs[i].vring, vdpasim->iommu,
 291                                  &vdpasim->iommu_lock);
 292
 293         ret = iova_cache_get();
 294         if (ret)
 295                 goto err_iommu;
 296
 297         /* For simplicity we use an IOVA allocator with byte granularity */
 298         init_iova_domain(&vdpasim->iova, 1, 0);
 299
 300         vdpasim->vdpa.dma_dev = dev;
 301
 302         return vdpasim;
 303
 304 err_iommu:
 305         put_device(dev);
 306 err_alloc:
 307         return ERR_PTR(ret);
 308 }
 309 EXPORT_SYMBOL_GPL(vdpasim_create);
 310
 311 static int vdpasim_set_vq_address(struct vdpa_device *vdpa, u16 idx,
 312                                   u64 desc_area, u64 driver_area,
 313                                   u64 device_area)
 314 {
 315         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 316         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
 317
 318         vq->desc_addr = desc_area;
 319         vq->driver_addr = driver_area;
 320         vq->device_addr = device_area;
 321
 322         return 0;
 323 }
 324
 325 static void vdpasim_set_vq_num(struct vdpa_device *vdpa, u16 idx, u32 num)
 326 {
 327         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 328         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
 329
 330         vq->num = num;
 331 }
 332
 333 static void vdpasim_kick_vq(struct vdpa_device *vdpa, u16 idx)
 334 {
 335         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 336         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
 337
 338         if (vq->ready)
 339                 schedule_work(&vdpasim->work);
 340 }
 341
 342 static void vdpasim_set_vq_cb(struct vdpa_device *vdpa, u16 idx,
 343                               struct vdpa_callback *cb)
 344 {
 345         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 346         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
 347
 348         vq->cb = cb->callback;
 349         vq->private = cb->private;
 350 }
 351
 352 static void vdpasim_set_vq_ready(struct vdpa_device *vdpa, u16 idx, bool ready)
 353 {
 354         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 355         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
 356
 357         spin_lock(&vdpasim->lock);
 358         vq->ready = ready;
 359         if (vq->ready)
 360                 vdpasim_queue_ready(vdpasim, idx);
 361         spin_unlock(&vdpasim->lock);
 362 }
 363
 364 static bool vdpasim_get_vq_ready(struct vdpa_device *vdpa, u16 idx)
 365 {
 366         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 367         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
 368
 369         return vq->ready;
 370 }
 371
 372 static int vdpasim_set_vq_state(struct vdpa_device *vdpa, u16 idx,
 373                                 const struct vdpa_vq_state *state)
 374 {
 375         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 376         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
 377         struct vringh *vrh = &vq->vring;
 378
 379         spin_lock(&vdpasim->lock);
 380         vrh->last_avail_idx = state->split.avail_index;
 381         spin_unlock(&vdpasim->lock);
 382
 383         return 0;
 384 }
 385
 386 static int vdpasim_get_vq_state(struct vdpa_device *vdpa, u16 idx,
 387                                 struct vdpa_vq_state *state)
 388 {
 389         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 390         struct vdpasim_virtqueue *vq = &vdpasim->vqs[idx];
 391         struct vringh *vrh = &vq->vring;
 392
 393         state->split.avail_index = vrh->last_avail_idx;
 394         return 0;
 395 }
 396
 397 static u32 vdpasim_get_vq_align(struct vdpa_device *vdpa)
 398 {
 399         return VDPASIM_QUEUE_ALIGN;
 400 }
 401
 402 static u64 vdpasim_get_features(struct vdpa_device *vdpa)
 403 {
 404         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 405
 406         return vdpasim->dev_attr.supported_features;
 407 }
 408
 409 static int vdpasim_set_features(struct vdpa_device *vdpa, u64 features)
 410 {
 411         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 412
 413         /* DMA mapping must be done by driver */
 414         if (!(features & (1ULL << VIRTIO_F_ACCESS_PLATFORM)))
 415                 return -EINVAL;
 416
 417         vdpasim->features = features & vdpasim->dev_attr.supported_features;
 418
 419         return 0;
 420 }
 421
 422 static void vdpasim_set_config_cb(struct vdpa_device *vdpa,
 423                                   struct vdpa_callback *cb)
 424 {
 425         /* We don't support config interrupt */
 426 }
 427
 428 static u16 vdpasim_get_vq_num_max(struct vdpa_device *vdpa)
 429 {
 430         return VDPASIM_QUEUE_MAX;
 431 }
 432
 433 static u32 vdpasim_get_device_id(struct vdpa_device *vdpa)
 434 {
 435         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 436
 437         return vdpasim->dev_attr.id;
 438 }
 439
 440 static u32 vdpasim_get_vendor_id(struct vdpa_device *vdpa)
 441 {
 442         return VDPASIM_VENDOR_ID;
 443 }
 444
 445 static u8 vdpasim_get_status(struct vdpa_device *vdpa)
 446 {
 447         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 448         u8 status;
 449
 450         spin_lock(&vdpasim->lock);
 451         status = vdpasim->status;
 452         spin_unlock(&vdpasim->lock);
 453
 454         return status;
 455 }
 456
 457 static void vdpasim_set_status(struct vdpa_device *vdpa, u8 status)
 458 {
 459         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 460
 461         spin_lock(&vdpasim->lock);
 462         vdpasim->status = status;
 463         if (status == 0)
 464                 vdpasim_reset(vdpasim);
 465         spin_unlock(&vdpasim->lock);
 466 }
 467
 468 static size_t vdpasim_get_config_size(struct vdpa_device *vdpa)
 469 {
 470         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 471
 472         return vdpasim->dev_attr.config_size;
 473 }
 474
 475 static void vdpasim_get_config(struct vdpa_device *vdpa, unsigned int offset,
 476                              void *buf, unsigned int len)
 477 {
 478         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 479
 480         if (offset + len > vdpasim->dev_attr.config_size)
 481                 return;
 482
 483         if (vdpasim->dev_attr.get_config)
 484                 vdpasim->dev_attr.get_config(vdpasim, vdpasim->config);
 485
 486         memcpy(buf, vdpasim->config + offset, len);
 487 }
 488
 489 static void vdpasim_set_config(struct vdpa_device *vdpa, unsigned int offset,
 490                              const void *buf, unsigned int len)
 491 {
 492         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 493
 494         if (offset + len > vdpasim->dev_attr.config_size)
 495                 return;
 496
 497         memcpy(vdpasim->config + offset, buf, len);
 498
 499         if (vdpasim->dev_attr.set_config)
 500                 vdpasim->dev_attr.set_config(vdpasim, vdpasim->config);
 501 }
 502
 503 static u32 vdpasim_get_generation(struct vdpa_device *vdpa)
 504 {
 505         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 506
 507         return vdpasim->generation;
 508 }
 509
 510 static struct vdpa_iova_range vdpasim_get_iova_range(struct vdpa_device *vdpa)
 511 {
 512         struct vdpa_iova_range range = {
 513                 .first = 0ULL,
 514                 .last = ULLONG_MAX,
 515         };
 516
 517         return range;
 518 }
 519
 520 static int vdpasim_set_map(struct vdpa_device *vdpa,
 521                            struct vhost_iotlb *iotlb)
 522 {
 523         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 524         struct vhost_iotlb_map *map;
 525         u64 start = 0ULL, last = 0ULL - 1;
 526         int ret;
 527
 528         spin_lock(&vdpasim->iommu_lock);
 529         vhost_iotlb_reset(vdpasim->iommu);
 530
 531         for (map = vhost_iotlb_itree_first(iotlb, start, last); map;
 532              map = vhost_iotlb_itree_next(map, start, last)) {
 533                 ret = vhost_iotlb_add_range(vdpasim->iommu, map->start,
 534                                             map->last, map->addr, map->perm);
 535                 if (ret)
 536                         goto err;
 537         }
 538         spin_unlock(&vdpasim->iommu_lock);
 539         return 0;
 540
 541 err:
 542         vhost_iotlb_reset(vdpasim->iommu);
 543         spin_unlock(&vdpasim->iommu_lock);
 544         return ret;
 545 }
 546
 547 static int vdpasim_dma_map(struct vdpa_device *vdpa, u64 iova, u64 size,
 548                            u64 pa, u32 perm)
 549 {
 550         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 551         int ret;
 552
 553         spin_lock(&vdpasim->iommu_lock);
 554         ret = vhost_iotlb_add_range(vdpasim->iommu, iova, iova + size - 1, pa,
 555                                     perm);
 556         spin_unlock(&vdpasim->iommu_lock);
 557
 558         return ret;
 559 }
 560
 561 static int vdpasim_dma_unmap(struct vdpa_device *vdpa, u64 iova, u64 size)
 562 {
 563         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 564
 565         spin_lock(&vdpasim->iommu_lock);
 566         vhost_iotlb_del_range(vdpasim->iommu, iova, iova + size - 1);
 567         spin_unlock(&vdpasim->iommu_lock);
 568
 569         return 0;
 570 }
 571
 572 static void vdpasim_free(struct vdpa_device *vdpa)
 573 {
 574         struct vdpasim *vdpasim = vdpa_to_sim(vdpa);
 575         int i;
 576
 577         cancel_work_sync(&vdpasim->work);
 578
 579         for (i = 0; i < vdpasim->dev_attr.nvqs; i++) {
 580                 vringh_kiov_cleanup(&vdpasim->vqs[i].out_iov);
 581                 vringh_kiov_cleanup(&vdpasim->vqs[i].in_iov);
 582         }
 583
 584         put_iova_domain(&vdpasim->iova);
 585         iova_cache_put();
 586         kvfree(vdpasim->buffer);
 587         if (vdpasim->iommu)
 588                 vhost_iotlb_free(vdpasim->iommu);
 589         kfree(vdpasim->vqs);
 590         kfree(vdpasim->config);
 591 }
 592
 593 static const struct vdpa_config_ops vdpasim_config_ops = {
 594         .set_vq_address         = vdpasim_set_vq_address,
 595         .set_vq_num             = vdpasim_set_vq_num,
 596         .kick_vq                = vdpasim_kick_vq,
 597         .set_vq_cb              = vdpasim_set_vq_cb,
 598         .set_vq_ready           = vdpasim_set_vq_ready,
 599         .get_vq_ready           = vdpasim_get_vq_ready,
 600         .set_vq_state           = vdpasim_set_vq_state,
 601         .get_vq_state           = vdpasim_get_vq_state,
 602         .get_vq_align           = vdpasim_get_vq_align,
 603         .get_features           = vdpasim_get_features,
 604         .set_features           = vdpasim_set_features,
 605         .set_config_cb          = vdpasim_set_config_cb,
 606         .get_vq_num_max         = vdpasim_get_vq_num_max,
 607         .get_device_id          = vdpasim_get_device_id,
 608         .get_vendor_id          = vdpasim_get_vendor_id,
 609         .get_status             = vdpasim_get_status,
 610         .set_status             = vdpasim_set_status,
 611         .get_config_size        = vdpasim_get_config_size,
 612         .get_config             = vdpasim_get_config,
 613         .set_config             = vdpasim_set_config,
 614         .get_generation         = vdpasim_get_generation,
 615         .get_iova_range         = vdpasim_get_iova_range,
 616         .dma_map                = vdpasim_dma_map,
 617         .dma_unmap              = vdpasim_dma_unmap,
 618         .free                   = vdpasim_free,
 619 };
 620
 621 static const struct vdpa_config_ops vdpasim_batch_config_ops = {
 622         .set_vq_address         = vdpasim_set_vq_address,
 623         .set_vq_num             = vdpasim_set_vq_num,
 624         .kick_vq                = vdpasim_kick_vq,
 625         .set_vq_cb              = vdpasim_set_vq_cb,
 626         .set_vq_ready           = vdpasim_set_vq_ready,
 627         .get_vq_ready           = vdpasim_get_vq_ready,
 628         .set_vq_state           = vdpasim_set_vq_state,
 629         .get_vq_state           = vdpasim_get_vq_state,
 630         .get_vq_align           = vdpasim_get_vq_align,
 631         .get_features           = vdpasim_get_features,
 632         .set_features           = vdpasim_set_features,
 633         .set_config_cb          = vdpasim_set_config_cb,
 634         .get_vq_num_max         = vdpasim_get_vq_num_max,
 635         .get_device_id          = vdpasim_get_device_id,
 636         .get_vendor_id          = vdpasim_get_vendor_id,
 637         .get_status             = vdpasim_get_status,
 638         .set_status             = vdpasim_set_status,
 639         .get_config_size        = vdpasim_get_config_size,
 640         .get_config             = vdpasim_get_config,
 641         .set_config             = vdpasim_set_config,
 642         .get_generation         = vdpasim_get_generation,
 643         .get_iova_range         = vdpasim_get_iova_range,
 644         .set_map                = vdpasim_set_map,
 645         .free                   = vdpasim_free,
 646 };
 647
 648 MODULE_VERSION(DRV_VERSION);
 649 MODULE_LICENSE(DRV_LICENSE);
 650 MODULE_AUTHOR(DRV_AUTHOR);
 651 MODULE_DESCRIPTION(DRV_DESC);