ceph/src/seastar/dpdk/drivers/bus/fslmc/fslmc_vfio.c

   1 /* SPDX-License-Identifier: BSD-3-Clause
   2  *
   3  *   Copyright (c) 2015-2016 Freescale Semiconductor, Inc. All rights reserved.
   4  *   Copyright 2016-2018 NXP
   5  *
   6  */
   7
   8 #include <unistd.h>
   9 #include <stdio.h>
  10 #include <sys/types.h>
  11 #include <string.h>
  12 #include <stdlib.h>
  13 #include <fcntl.h>
  14 #include <errno.h>
  15 #include <sys/ioctl.h>
  16 #include <sys/stat.h>
  17 #include <sys/mman.h>
  18 #include <sys/vfs.h>
  19 #include <libgen.h>
  20 #include <dirent.h>
  21 #include <sys/eventfd.h>
  22
  23 #include <eal_filesystem.h>
  24 #include <rte_mbuf.h>
  25 #include <rte_ethdev_driver.h>
  26 #include <rte_malloc.h>
  27 #include <rte_memcpy.h>
  28 #include <rte_string_fns.h>
  29 #include <rte_cycles.h>
  30 #include <rte_kvargs.h>
  31 #include <rte_dev.h>
  32 #include <rte_bus.h>
  33 #include <rte_eal_memconfig.h>
  34
  35 #include "rte_fslmc.h"
  36 #include "fslmc_vfio.h"
  37 #include "fslmc_logs.h"
  38 #include <mc/fsl_dpmng.h>
  39
  40 #include "portal/dpaa2_hw_pvt.h"
  41 #include "portal/dpaa2_hw_dpio.h"
  42
  43 /** Pathname of FSL-MC devices directory. */
  44 #define SYSFS_FSL_MC_DEVICES "/sys/bus/fsl-mc/devices"
  45
  46 #define FSLMC_CONTAINER_MAX_LEN 8 /**< Of the format dprc.XX */
  47
  48 /* Number of VFIO containers & groups with in */
  49 static struct fslmc_vfio_group vfio_group;
  50 static struct fslmc_vfio_container vfio_container;
  51 static int container_device_fd;
  52 static char *g_container;
  53 static uint32_t *msi_intr_vaddr;
  54 void *(*rte_mcp_ptr_list);
  55
  56 static struct rte_dpaa2_object_list dpaa2_obj_list =
  57         TAILQ_HEAD_INITIALIZER(dpaa2_obj_list);
  58
  59 /*register a fslmc bus based dpaa2 driver */
  60 void
  61 rte_fslmc_object_register(struct rte_dpaa2_object *object)
  62 {
  63         RTE_VERIFY(object);
  64
  65         TAILQ_INSERT_TAIL(&dpaa2_obj_list, object, next);
  66 }
  67
  68 int
  69 fslmc_get_container_group(int *groupid)
  70 {
  71         int ret;
  72         char *container;
  73
  74         if (!g_container) {
  75                 container = getenv("DPRC");
  76                 if (container == NULL) {
  77                         DPAA2_BUS_DEBUG("DPAA2: DPRC not available");
  78                         return -EINVAL;
  79                 }
  80
  81                 if (strlen(container) >= FSLMC_CONTAINER_MAX_LEN) {
  82                         DPAA2_BUS_ERR("Invalid container name: %s", container);
  83                         return -1;
  84                 }
  85
  86                 g_container = strdup(container);
  87                 if (!g_container) {
  88                         DPAA2_BUS_ERR("Mem alloc failure; Container name");
  89                         return -ENOMEM;
  90                 }
  91         }
  92
  93         /* get group number */
  94         ret = rte_vfio_get_group_num(SYSFS_FSL_MC_DEVICES,
  95                                      g_container, groupid);
  96         if (ret <= 0) {
  97                 DPAA2_BUS_ERR("Unable to find %s IOMMU group", g_container);
  98                 return -1;
  99         }
 100
 101         DPAA2_BUS_DEBUG("Container: %s has VFIO iommu group id = %d",
 102                         g_container, *groupid);
 103
 104         return 0;
 105 }
 106
 107 static int
 108 vfio_connect_container(void)
 109 {
 110         int fd, ret;
 111
 112         if (vfio_container.used) {
 113                 DPAA2_BUS_DEBUG("No container available");
 114                 return -1;
 115         }
 116
 117         /* Try connecting to vfio container if already created */
 118         if (!ioctl(vfio_group.fd, VFIO_GROUP_SET_CONTAINER,
 119                 &vfio_container.fd)) {
 120                 DPAA2_BUS_DEBUG(
 121                     "Container pre-exists with FD[0x%x] for this group",
 122                     vfio_container.fd);
 123                 vfio_group.container = &vfio_container;
 124                 return 0;
 125         }
 126
 127         /* Opens main vfio file descriptor which represents the "container" */
 128         fd = rte_vfio_get_container_fd();
 129         if (fd < 0) {
 130                 DPAA2_BUS_ERR("Failed to open VFIO container");
 131                 return -errno;
 132         }
 133
 134         /* Check whether support for SMMU type IOMMU present or not */
 135         if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) {
 136                 /* Connect group to container */
 137                 ret = ioctl(vfio_group.fd, VFIO_GROUP_SET_CONTAINER, &fd);
 138                 if (ret) {
 139                         DPAA2_BUS_ERR("Failed to setup group container");
 140                         close(fd);
 141                         return -errno;
 142                 }
 143
 144                 ret = ioctl(fd, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU);
 145                 if (ret) {
 146                         DPAA2_BUS_ERR("Failed to setup VFIO iommu");
 147                         close(fd);
 148                         return -errno;
 149                 }
 150         } else {
 151                 DPAA2_BUS_ERR("No supported IOMMU available");
 152                 close(fd);
 153                 return -EINVAL;
 154         }
 155
 156         vfio_container.used = 1;
 157         vfio_container.fd = fd;
 158         vfio_container.group = &vfio_group;
 159         vfio_group.container = &vfio_container;
 160
 161         return 0;
 162 }
 163
 164 static int vfio_map_irq_region(struct fslmc_vfio_group *group)
 165 {
 166         int ret;
 167         unsigned long *vaddr = NULL;
 168         struct vfio_iommu_type1_dma_map map = {
 169                 .argsz = sizeof(map),
 170                 .flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
 171                 .vaddr = 0x6030000,
 172                 .iova = 0x6030000,
 173                 .size = 0x1000,
 174         };
 175
 176         vaddr = (unsigned long *)mmap(NULL, 0x1000, PROT_WRITE |
 177                 PROT_READ, MAP_SHARED, container_device_fd, 0x6030000);
 178         if (vaddr == MAP_FAILED) {
 179                 DPAA2_BUS_INFO("Unable to map region (errno = %d)", errno);
 180                 return -errno;
 181         }
 182
 183         msi_intr_vaddr = (uint32_t *)((char *)(vaddr) + 64);
 184         map.vaddr = (unsigned long)vaddr;
 185         ret = ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &map);
 186         if (ret == 0)
 187                 return 0;
 188
 189         DPAA2_BUS_ERR("Unable to map DMA address (errno = %d)", errno);
 190         return -errno;
 191 }
 192
 193 static int fslmc_map_dma(uint64_t vaddr, rte_iova_t iovaddr, size_t len);
 194 static int fslmc_unmap_dma(uint64_t vaddr, rte_iova_t iovaddr, size_t len);
 195
 196 static void
 197 fslmc_memevent_cb(enum rte_mem_event type, const void *addr, size_t len,
 198                 void *arg __rte_unused)
 199 {
 200         struct rte_memseg_list *msl;
 201         struct rte_memseg *ms;
 202         size_t cur_len = 0, map_len = 0;
 203         uint64_t virt_addr;
 204         rte_iova_t iova_addr;
 205         int ret;
 206
 207         msl = rte_mem_virt2memseg_list(addr);
 208
 209         while (cur_len < len) {
 210                 const void *va = RTE_PTR_ADD(addr, cur_len);
 211
 212                 ms = rte_mem_virt2memseg(va, msl);
 213                 iova_addr = ms->iova;
 214                 virt_addr = ms->addr_64;
 215                 map_len = ms->len;
 216
 217                 DPAA2_BUS_DEBUG("Request for %s, va=%p, "
 218                                 "virt_addr=0x%" PRIx64 ", "
 219                                 "iova=0x%" PRIx64 ", map_len=%zu",
 220                                 type == RTE_MEM_EVENT_ALLOC ?
 221                                         "alloc" : "dealloc",
 222                                 va, virt_addr, iova_addr, map_len);
 223
 224                 /* iova_addr may be set to RTE_BAD_IOVA */
 225                 if (iova_addr == RTE_BAD_IOVA) {
 226                         DPAA2_BUS_DEBUG("Segment has invalid iova, skipping\n");
 227                         cur_len += map_len;
 228                         continue;
 229                 }
 230
 231                 if (type == RTE_MEM_EVENT_ALLOC)
 232                         ret = fslmc_map_dma(virt_addr, iova_addr, map_len);
 233                 else
 234                         ret = fslmc_unmap_dma(virt_addr, iova_addr, map_len);
 235
 236                 if (ret != 0) {
 237                         DPAA2_BUS_ERR("DMA Mapping/Unmapping failed. "
 238                                         "Map=%d, addr=%p, len=%zu, err:(%d)",
 239                                         type, va, map_len, ret);
 240                         return;
 241                 }
 242
 243                 cur_len += map_len;
 244         }
 245
 246         if (type == RTE_MEM_EVENT_ALLOC)
 247                 DPAA2_BUS_DEBUG("Total Mapped: addr=%p, len=%zu",
 248                                 addr, len);
 249         else
 250                 DPAA2_BUS_DEBUG("Total Unmapped: addr=%p, len=%zu",
 251                                 addr, len);
 252 }
 253
 254 static int
 255 fslmc_map_dma(uint64_t vaddr, rte_iova_t iovaddr __rte_unused, size_t len)
 256 {
 257         struct fslmc_vfio_group *group;
 258         struct vfio_iommu_type1_dma_map dma_map = {
 259                 .argsz = sizeof(struct vfio_iommu_type1_dma_map),
 260                 .flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
 261         };
 262         int ret;
 263
 264         dma_map.size = len;
 265         dma_map.vaddr = vaddr;
 266
 267 #ifdef RTE_LIBRTE_DPAA2_USE_PHYS_IOVA
 268         dma_map.iova = iovaddr;
 269 #else
 270         dma_map.iova = dma_map.vaddr;
 271 #endif
 272
 273         /* SET DMA MAP for IOMMU */
 274         group = &vfio_group;
 275
 276         if (!group->container) {
 277                 DPAA2_BUS_ERR("Container is not connected ");
 278                 return -1;
 279         }
 280
 281         DPAA2_BUS_DEBUG("--> Map address: 0x%"PRIx64", size: %"PRIu64"",
 282                         (uint64_t)dma_map.vaddr, (uint64_t)dma_map.size);
 283         ret = ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &dma_map);
 284         if (ret) {
 285                 DPAA2_BUS_ERR("VFIO_IOMMU_MAP_DMA API(errno = %d)",
 286                                 errno);
 287                 return -1;
 288         }
 289
 290         return 0;
 291 }
 292
 293 static int
 294 fslmc_unmap_dma(uint64_t vaddr, uint64_t iovaddr __rte_unused, size_t len)
 295 {
 296         struct fslmc_vfio_group *group;
 297         struct vfio_iommu_type1_dma_unmap dma_unmap = {
 298                 .argsz = sizeof(struct vfio_iommu_type1_dma_unmap),
 299                 .flags = 0,
 300         };
 301         int ret;
 302
 303         dma_unmap.size = len;
 304         dma_unmap.iova = vaddr;
 305
 306         /* SET DMA MAP for IOMMU */
 307         group = &vfio_group;
 308
 309         if (!group->container) {
 310                 DPAA2_BUS_ERR("Container is not connected ");
 311                 return -1;
 312         }
 313
 314         DPAA2_BUS_DEBUG("--> Unmap address: 0x%"PRIx64", size: %"PRIu64"",
 315                         (uint64_t)dma_unmap.iova, (uint64_t)dma_unmap.size);
 316         ret = ioctl(group->container->fd, VFIO_IOMMU_UNMAP_DMA, &dma_unmap);
 317         if (ret) {
 318                 DPAA2_BUS_ERR("VFIO_IOMMU_UNMAP_DMA API(errno = %d)",
 319                                 errno);
 320                 return -1;
 321         }
 322
 323         return 0;
 324 }
 325
 326 static int
 327 fslmc_dmamap_seg(const struct rte_memseg_list *msl __rte_unused,
 328                 const struct rte_memseg *ms, void *arg)
 329 {
 330         int *n_segs = arg;
 331         int ret;
 332
 333         /* if IOVA address is invalid, skip */
 334         if (ms->iova == RTE_BAD_IOVA)
 335                 return 0;
 336
 337         ret = fslmc_map_dma(ms->addr_64, ms->iova, ms->len);
 338         if (ret)
 339                 DPAA2_BUS_ERR("Unable to VFIO map (addr=%p, len=%zu)",
 340                                 ms->addr, ms->len);
 341         else
 342                 (*n_segs)++;
 343
 344         return ret;
 345 }
 346
 347 int rte_fslmc_vfio_dmamap(void)
 348 {
 349         int i = 0, ret;
 350         struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
 351         rte_rwlock_t *mem_lock = &mcfg->memory_hotplug_lock;
 352
 353         /* Lock before parsing and registering callback to memory subsystem */
 354         rte_rwlock_read_lock(mem_lock);
 355
 356         if (rte_memseg_walk(fslmc_dmamap_seg, &i) < 0) {
 357                 rte_rwlock_read_unlock(mem_lock);
 358                 return -1;
 359         }
 360
 361         ret = rte_mem_event_callback_register("fslmc_memevent_clb",
 362                         fslmc_memevent_cb, NULL);
 363         if (ret && rte_errno == ENOTSUP)
 364                 DPAA2_BUS_DEBUG("Memory event callbacks not supported");
 365         else if (ret)
 366                 DPAA2_BUS_DEBUG("Unable to install memory handler");
 367         else
 368                 DPAA2_BUS_DEBUG("Installed memory callback handler");
 369
 370         DPAA2_BUS_DEBUG("Total %d segments found.", i);
 371
 372         /* TODO - This is a W.A. as VFIO currently does not add the mapping of
 373          * the interrupt region to SMMU. This should be removed once the
 374          * support is added in the Kernel.
 375          */
 376         vfio_map_irq_region(&vfio_group);
 377
 378         /* Existing segments have been mapped and memory callback for hotplug
 379          * has been installed.
 380          */
 381         rte_rwlock_read_unlock(mem_lock);
 382
 383         return 0;
 384 }
 385
 386 static int64_t vfio_map_mcp_obj(struct fslmc_vfio_group *group, char *mcp_obj)
 387 {
 388         intptr_t v_addr = (intptr_t)MAP_FAILED;
 389         int32_t ret, mc_fd;
 390
 391         struct vfio_device_info d_info = { .argsz = sizeof(d_info) };
 392         struct vfio_region_info reg_info = { .argsz = sizeof(reg_info) };
 393
 394         /* getting the mcp object's fd*/
 395         mc_fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, mcp_obj);
 396         if (mc_fd < 0) {
 397                 DPAA2_BUS_ERR("Error in VFIO get dev %s fd from group %d",
 398                               mcp_obj, group->fd);
 399                 return v_addr;
 400         }
 401
 402         /* getting device info*/
 403         ret = ioctl(mc_fd, VFIO_DEVICE_GET_INFO, &d_info);
 404         if (ret < 0) {
 405                 DPAA2_BUS_ERR("Error in VFIO getting DEVICE_INFO");
 406                 goto MC_FAILURE;
 407         }
 408
 409         /* getting device region info*/
 410         ret = ioctl(mc_fd, VFIO_DEVICE_GET_REGION_INFO, &reg_info);
 411         if (ret < 0) {
 412                 DPAA2_BUS_ERR("Error in VFIO getting REGION_INFO");
 413                 goto MC_FAILURE;
 414         }
 415
 416         v_addr = (size_t)mmap(NULL, reg_info.size,
 417                 PROT_WRITE | PROT_READ, MAP_SHARED,
 418                 mc_fd, reg_info.offset);
 419
 420 MC_FAILURE:
 421         close(mc_fd);
 422
 423         return v_addr;
 424 }
 425
 426 #define IRQ_SET_BUF_LEN  (sizeof(struct vfio_irq_set) + sizeof(int))
 427
 428 int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle, int index)
 429 {
 430         int len, ret;
 431         char irq_set_buf[IRQ_SET_BUF_LEN];
 432         struct vfio_irq_set *irq_set;
 433         int *fd_ptr;
 434
 435         len = sizeof(irq_set_buf);
 436
 437         irq_set = (struct vfio_irq_set *)irq_set_buf;
 438         irq_set->argsz = len;
 439         irq_set->count = 1;
 440         irq_set->flags =
 441                 VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_TRIGGER;
 442         irq_set->index = index;
 443         irq_set->start = 0;
 444         fd_ptr = (int *)&irq_set->data;
 445         *fd_ptr = intr_handle->fd;
 446
 447         ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
 448         if (ret) {
 449                 DPAA2_BUS_ERR("Error:dpaa2 SET IRQs fd=%d, err = %d(%s)",
 450                               intr_handle->fd, errno, strerror(errno));
 451                 return ret;
 452         }
 453
 454         return ret;
 455 }
 456
 457 int rte_dpaa2_intr_disable(struct rte_intr_handle *intr_handle, int index)
 458 {
 459         struct vfio_irq_set *irq_set;
 460         char irq_set_buf[IRQ_SET_BUF_LEN];
 461         int len, ret;
 462
 463         len = sizeof(struct vfio_irq_set);
 464
 465         irq_set = (struct vfio_irq_set *)irq_set_buf;
 466         irq_set->argsz = len;
 467         irq_set->flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_TRIGGER;
 468         irq_set->index = index;
 469         irq_set->start = 0;
 470         irq_set->count = 0;
 471
 472         ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
 473         if (ret)
 474                 DPAA2_BUS_ERR(
 475                         "Error disabling dpaa2 interrupts for fd %d",
 476                         intr_handle->fd);
 477
 478         return ret;
 479 }
 480
 481 /* set up interrupt support (but not enable interrupts) */
 482 int
 483 rte_dpaa2_vfio_setup_intr(struct rte_intr_handle *intr_handle,
 484                           int vfio_dev_fd,
 485                           int num_irqs)
 486 {
 487         int i, ret;
 488
 489         /* start from MSI-X interrupt type */
 490         for (i = 0; i < num_irqs; i++) {
 491                 struct vfio_irq_info irq_info = { .argsz = sizeof(irq_info) };
 492                 int fd = -1;
 493
 494                 irq_info.index = i;
 495
 496                 ret = ioctl(vfio_dev_fd, VFIO_DEVICE_GET_IRQ_INFO, &irq_info);
 497                 if (ret < 0) {
 498                         DPAA2_BUS_ERR("Cannot get IRQ(%d) info, error %i (%s)",
 499                                       i, errno, strerror(errno));
 500                         return -1;
 501                 }
 502
 503                 /* if this vector cannot be used with eventfd,
 504                  * fail if we explicitly
 505                  * specified interrupt type, otherwise continue
 506                  */
 507                 if ((irq_info.flags & VFIO_IRQ_INFO_EVENTFD) == 0)
 508                         continue;
 509
 510                 /* set up an eventfd for interrupts */
 511                 fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
 512                 if (fd < 0) {
 513                         DPAA2_BUS_ERR("Cannot set up eventfd, error %i (%s)",
 514                                       errno, strerror(errno));
 515                         return -1;
 516                 }
 517
 518                 intr_handle->fd = fd;
 519                 intr_handle->type = RTE_INTR_HANDLE_VFIO_MSI;
 520                 intr_handle->vfio_dev_fd = vfio_dev_fd;
 521
 522                 return 0;
 523         }
 524
 525         /* if we're here, we haven't found a suitable interrupt vector */
 526         return -1;
 527 }
 528
 529 /*
 530  * fslmc_process_iodevices for processing only IO (ETH, CRYPTO, and possibly
 531  * EVENT) devices.
 532  */
 533 static int
 534 fslmc_process_iodevices(struct rte_dpaa2_device *dev)
 535 {
 536         int dev_fd;
 537         struct vfio_device_info device_info = { .argsz = sizeof(device_info) };
 538         struct rte_dpaa2_object *object = NULL;
 539
 540         dev_fd = ioctl(vfio_group.fd, VFIO_GROUP_GET_DEVICE_FD,
 541                        dev->device.name);
 542         if (dev_fd <= 0) {
 543                 DPAA2_BUS_ERR("Unable to obtain device FD for device:%s",
 544                               dev->device.name);
 545                 return -1;
 546         }
 547
 548         if (ioctl(dev_fd, VFIO_DEVICE_GET_INFO, &device_info)) {
 549                 DPAA2_BUS_ERR("Unable to obtain information for device:%s",
 550                               dev->device.name);
 551                 return -1;
 552         }
 553
 554         switch (dev->dev_type) {
 555         case DPAA2_ETH:
 556                 rte_dpaa2_vfio_setup_intr(&dev->intr_handle, dev_fd,
 557                                           device_info.num_irqs);
 558                 break;
 559         case DPAA2_CON:
 560         case DPAA2_IO:
 561         case DPAA2_CI:
 562         case DPAA2_BPOOL:
 563         case DPAA2_MUX:
 564                 TAILQ_FOREACH(object, &dpaa2_obj_list, next) {
 565                         if (dev->dev_type == object->dev_type)
 566                                 object->create(dev_fd, &device_info,
 567                                                dev->object_id);
 568                         else
 569                                 continue;
 570                 }
 571                 break;
 572         default:
 573                 break;
 574         }
 575
 576         DPAA2_BUS_LOG(DEBUG, "Device (%s) abstracted from VFIO",
 577                       dev->device.name);
 578         return 0;
 579 }
 580
 581 static int
 582 fslmc_process_mcp(struct rte_dpaa2_device *dev)
 583 {
 584         int ret;
 585         intptr_t v_addr;
 586         char *dev_name = NULL;
 587         struct fsl_mc_io dpmng  = {0};
 588         struct mc_version mc_ver_info = {0};
 589
 590         rte_mcp_ptr_list = malloc(sizeof(void *) * 1);
 591         if (!rte_mcp_ptr_list) {
 592                 DPAA2_BUS_ERR("Unable to allocate MC portal memory");
 593                 ret = -ENOMEM;
 594                 goto cleanup;
 595         }
 596
 597         dev_name = strdup(dev->device.name);
 598         if (!dev_name) {
 599                 DPAA2_BUS_ERR("Unable to allocate MC device name memory");
 600                 ret = -ENOMEM;
 601                 goto cleanup;
 602         }
 603
 604         v_addr = vfio_map_mcp_obj(&vfio_group, dev_name);
 605         if (v_addr == (intptr_t)MAP_FAILED) {
 606                 DPAA2_BUS_ERR("Error mapping region (errno = %d)", errno);
 607                 ret = -1;
 608                 goto cleanup;
 609         }
 610
 611         /* check the MC version compatibility */
 612         dpmng.regs = (void *)v_addr;
 613
 614         /* In case of secondary processes, MC version check is no longer
 615          * required.
 616          */
 617         if (rte_eal_process_type() == RTE_PROC_SECONDARY) {
 618                 rte_mcp_ptr_list[0] = (void *)v_addr;
 619                 return 0;
 620         }
 621
 622         if (mc_get_version(&dpmng, CMD_PRI_LOW, &mc_ver_info)) {
 623                 DPAA2_BUS_ERR("Unable to obtain MC version");
 624                 ret = -1;
 625                 goto cleanup;
 626         }
 627
 628         if ((mc_ver_info.major != MC_VER_MAJOR) ||
 629             (mc_ver_info.minor < MC_VER_MINOR)) {
 630                 DPAA2_BUS_ERR("DPAA2 MC version not compatible!"
 631                               " Expected %d.%d.x, Detected %d.%d.%d",
 632                               MC_VER_MAJOR, MC_VER_MINOR,
 633                               mc_ver_info.major, mc_ver_info.minor,
 634                               mc_ver_info.revision);
 635                 ret = -1;
 636                 goto cleanup;
 637         }
 638         rte_mcp_ptr_list[0] = (void *)v_addr;
 639
 640         free(dev_name);
 641         return 0;
 642
 643 cleanup:
 644         if (dev_name)
 645                 free(dev_name);
 646
 647         if (rte_mcp_ptr_list) {
 648                 free(rte_mcp_ptr_list);
 649                 rte_mcp_ptr_list = NULL;
 650         }
 651
 652         return ret;
 653 }
 654
 655 int
 656 fslmc_vfio_process_group(void)
 657 {
 658         int ret;
 659         int found_mportal = 0;
 660         struct rte_dpaa2_device *dev, *dev_temp;
 661
 662         /* Search the MCP as that should be initialized first. */
 663         TAILQ_FOREACH_SAFE(dev, &rte_fslmc_bus.device_list, next, dev_temp) {
 664                 if (dev->dev_type == DPAA2_MPORTAL) {
 665                         if (dev->device.devargs &&
 666                             dev->device.devargs->policy == RTE_DEV_BLACKLISTED) {
 667                                 DPAA2_BUS_LOG(DEBUG, "%s Blacklisted, skipping",
 668                                               dev->device.name);
 669                                 TAILQ_REMOVE(&rte_fslmc_bus.device_list,
 670                                                 dev, next);
 671                                 continue;
 672                         }
 673
 674                         ret = fslmc_process_mcp(dev);
 675                         if (ret) {
 676                                 DPAA2_BUS_ERR("Unable to map MC Portal");
 677                                 return -1;
 678                         }
 679                         if (!found_mportal)
 680                                 found_mportal = 1;
 681
 682                         TAILQ_REMOVE(&rte_fslmc_bus.device_list, dev, next);
 683                         free(dev);
 684                         dev = NULL;
 685                         /* Ideally there is only a single dpmcp, but in case
 686                          * multiple exists, looping on remaining devices.
 687                          */
 688                 }
 689         }
 690
 691         /* Cannot continue if there is not even a single mportal */
 692         if (!found_mportal) {
 693                 DPAA2_BUS_ERR("No MC Portal device found. Not continuing");
 694                 return -1;
 695         }
 696
 697         TAILQ_FOREACH_SAFE(dev, &rte_fslmc_bus.device_list, next, dev_temp) {
 698                 if (dev->device.devargs &&
 699                     dev->device.devargs->policy == RTE_DEV_BLACKLISTED) {
 700                         DPAA2_BUS_LOG(DEBUG, "%s Blacklisted, skipping",
 701                                       dev->device.name);
 702                         TAILQ_REMOVE(&rte_fslmc_bus.device_list, dev, next);
 703                         continue;
 704                 }
 705                 switch (dev->dev_type) {
 706                 case DPAA2_ETH:
 707                 case DPAA2_CRYPTO:
 708                 case DPAA2_QDMA:
 709                         ret = fslmc_process_iodevices(dev);
 710                         if (ret) {
 711                                 DPAA2_BUS_DEBUG("Dev (%s) init failed",
 712                                                 dev->device.name);
 713                                 return ret;
 714                         }
 715                         break;
 716                 case DPAA2_CON:
 717                 case DPAA2_CI:
 718                 case DPAA2_BPOOL:
 719                 case DPAA2_MUX:
 720                         /* IN case of secondary processes, all control objects
 721                          * like dpbp, dpcon, dpci are not initialized/required
 722                          * - all of these are assumed to be initialized and made
 723                          *   available by primary.
 724                          */
 725                         if (rte_eal_process_type() == RTE_PROC_SECONDARY)
 726                                 continue;
 727
 728                         /* Call the object creation routine and remove the
 729                          * device entry from device list
 730                          */
 731                         ret = fslmc_process_iodevices(dev);
 732                         if (ret) {
 733                                 DPAA2_BUS_DEBUG("Dev (%s) init failed",
 734                                                 dev->device.name);
 735                                 return -1;
 736                         }
 737
 738                         break;
 739                 case DPAA2_IO:
 740                         ret = fslmc_process_iodevices(dev);
 741                         if (ret) {
 742                                 DPAA2_BUS_DEBUG("Dev (%s) init failed",
 743                                                 dev->device.name);
 744                                 return -1;
 745                         }
 746
 747                         break;
 748                 case DPAA2_UNKNOWN:
 749                 default:
 750                         /* Unknown - ignore */
 751                         DPAA2_BUS_DEBUG("Found unknown device (%s)",
 752                                         dev->device.name);
 753                         TAILQ_REMOVE(&rte_fslmc_bus.device_list, dev, next);
 754                         free(dev);
 755                         dev = NULL;
 756                 }
 757         }
 758
 759         return 0;
 760 }
 761
 762 int
 763 fslmc_vfio_setup_group(void)
 764 {
 765         int groupid;
 766         int ret;
 767         struct vfio_group_status status = { .argsz = sizeof(status) };
 768
 769         /* if already done once */
 770         if (container_device_fd)
 771                 return 0;
 772
 773         ret = fslmc_get_container_group(&groupid);
 774         if (ret)
 775                 return ret;
 776
 777         /* In case this group was already opened, continue without any
 778          * processing.
 779          */
 780         if (vfio_group.groupid == groupid) {
 781                 DPAA2_BUS_ERR("groupid already exists %d", groupid);
 782                 return 0;
 783         }
 784
 785         /* Get the actual group fd */
 786         ret = rte_vfio_get_group_fd(groupid);
 787         if (ret < 0)
 788                 return ret;
 789         vfio_group.fd = ret;
 790
 791         /* Check group viability */
 792         ret = ioctl(vfio_group.fd, VFIO_GROUP_GET_STATUS, &status);
 793         if (ret) {
 794                 DPAA2_BUS_ERR("VFIO error getting group status");
 795                 close(vfio_group.fd);
 796                 rte_vfio_clear_group(vfio_group.fd);
 797                 return ret;
 798         }
 799
 800         if (!(status.flags & VFIO_GROUP_FLAGS_VIABLE)) {
 801                 DPAA2_BUS_ERR("VFIO group not viable");
 802                 close(vfio_group.fd);
 803                 rte_vfio_clear_group(vfio_group.fd);
 804                 return -EPERM;
 805         }
 806         /* Since Group is VIABLE, Store the groupid */
 807         vfio_group.groupid = groupid;
 808
 809         /* check if group does not have a container yet */
 810         if (!(status.flags & VFIO_GROUP_FLAGS_CONTAINER_SET)) {
 811                 /* Now connect this IOMMU group to given container */
 812                 ret = vfio_connect_container();
 813                 if (ret) {
 814                         DPAA2_BUS_ERR(
 815                                 "Error connecting container with groupid %d",
 816                                 groupid);
 817                         close(vfio_group.fd);
 818                         rte_vfio_clear_group(vfio_group.fd);
 819                         return ret;
 820                 }
 821         }
 822
 823         /* Get Device information */
 824         ret = ioctl(vfio_group.fd, VFIO_GROUP_GET_DEVICE_FD, g_container);
 825         if (ret < 0) {
 826                 DPAA2_BUS_ERR("Error getting device %s fd from group %d",
 827                               g_container, vfio_group.groupid);
 828                 close(vfio_group.fd);
 829                 rte_vfio_clear_group(vfio_group.fd);
 830                 return ret;
 831         }
 832         container_device_fd = ret;
 833         DPAA2_BUS_DEBUG("VFIO Container FD is [0x%X]",
 834                         container_device_fd);
 835
 836         return 0;
 837 }