4 * Copyright (c) 2015-2016 Freescale Semiconductor, Inc. All rights reserved.
5 * Copyright (c) 2016 NXP. All rights reserved.
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36 #include <sys/types.h>
41 #include <sys/ioctl.h>
43 #include <sys/types.h>
48 #include <sys/eventfd.h>
51 #include <rte_ethdev.h>
52 #include <rte_malloc.h>
53 #include <rte_memcpy.h>
54 #include <rte_string_fns.h>
55 #include <rte_cycles.h>
56 #include <rte_kvargs.h>
58 #include <rte_ethdev.h>
61 #include "rte_fslmc.h"
62 #include "fslmc_vfio.h"
64 #include "portal/dpaa2_hw_pvt.h"
65 #include "portal/dpaa2_hw_dpio.h"
67 #define VFIO_MAX_CONTAINERS 1
69 #define FSLMC_VFIO_LOG(level, fmt, args...) \
70 RTE_LOG(level, EAL, "%s(): " fmt "\n", __func__, ##args)
72 /** Pathname of FSL-MC devices directory. */
73 #define SYSFS_FSL_MC_DEVICES "/sys/bus/fsl-mc/devices"
75 /* Number of VFIO containers & groups with in */
76 static struct fslmc_vfio_group vfio_groups[VFIO_MAX_GRP];
77 static struct fslmc_vfio_container vfio_containers[VFIO_MAX_CONTAINERS];
78 static int container_device_fd;
79 void *(*rte_mcp_ptr_list);
80 static uint32_t mcp_id;
82 static int vfio_connect_container(struct fslmc_vfio_group *vfio_group)
84 struct fslmc_vfio_container *container;
87 /* Try connecting to vfio container if already created */
88 for (i = 0; i < VFIO_MAX_CONTAINERS; i++) {
89 container = &vfio_containers[i];
90 if (!ioctl(vfio_group->fd, VFIO_GROUP_SET_CONTAINER,
92 FSLMC_VFIO_LOG(INFO, "Container pre-exists with"
93 " FD[0x%x] for this group",
95 vfio_group->container = container;
100 /* Opens main vfio file descriptor which represents the "container" */
101 fd = vfio_get_container_fd();
103 FSLMC_VFIO_LOG(ERR, "Failed to open VFIO container");
107 /* Check whether support for SMMU type IOMMU present or not */
108 if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) {
109 /* Connect group to container */
110 ret = ioctl(vfio_group->fd, VFIO_GROUP_SET_CONTAINER, &fd);
112 FSLMC_VFIO_LOG(ERR, "Failed to setup group container");
117 ret = ioctl(fd, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU);
119 FSLMC_VFIO_LOG(ERR, "Failed to setup VFIO iommu");
124 FSLMC_VFIO_LOG(ERR, "No supported IOMMU available");
130 for (i = 0; i < VFIO_MAX_CONTAINERS; i++) {
131 if (vfio_containers[i].used)
133 FSLMC_VFIO_LOG(DEBUG, "Unused container at index %d", i);
134 container = &vfio_containers[i];
137 FSLMC_VFIO_LOG(ERR, "No free container found");
144 container->group_list[container->index] = vfio_group;
145 vfio_group->container = container;
150 int vfio_dmamap_mem_region(uint64_t vaddr,
154 struct fslmc_vfio_group *group;
155 struct vfio_iommu_type1_dma_map dma_map = {
156 .argsz = sizeof(dma_map),
157 .flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
160 dma_map.vaddr = vaddr;
164 /* SET DMA MAP for IOMMU */
165 group = &vfio_groups[0];
166 if (ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &dma_map)) {
167 FSLMC_VFIO_LOG(ERR, "VFIO_IOMMU_MAP_DMA (errno = %d)", errno);
173 static int64_t vfio_map_mcp_obj(struct fslmc_vfio_group *group, char *mcp_obj)
175 int64_t v_addr = (int64_t)MAP_FAILED;
178 struct vfio_device_info d_info = { .argsz = sizeof(d_info) };
179 struct vfio_region_info reg_info = { .argsz = sizeof(reg_info) };
181 /* getting the mcp object's fd*/
182 mc_fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, mcp_obj);
184 FSLMC_VFIO_LOG(ERR, "error in VFIO get device %s fd from group"
185 " %d", mcp_obj, group->fd);
189 /* getting device info*/
190 ret = ioctl(mc_fd, VFIO_DEVICE_GET_INFO, &d_info);
192 FSLMC_VFIO_LOG(ERR, "error in VFIO getting DEVICE_INFO");
196 /* getting device region info*/
197 ret = ioctl(mc_fd, VFIO_DEVICE_GET_REGION_INFO, ®_info);
199 FSLMC_VFIO_LOG(ERR, "error in VFIO getting REGION_INFO");
203 FSLMC_VFIO_LOG(DEBUG, "region offset = %llx , region size = %llx",
204 reg_info.offset, reg_info.size);
206 v_addr = (uint64_t)mmap(NULL, reg_info.size,
207 PROT_WRITE | PROT_READ, MAP_SHARED,
208 mc_fd, reg_info.offset);
217 dpaa2_compare_dpaa2_dev(const struct rte_dpaa2_device *dev,
218 const struct rte_dpaa2_device *dev2)
220 /*not the same family device */
221 if (dev->dev_type != DPAA2_MC_DPNI_DEVID ||
222 dev->dev_type != DPAA2_MC_DPSECI_DEVID)
225 if (dev->object_id == dev2->object_id)
232 fslmc_bus_add_device(struct rte_dpaa2_device *dev)
234 struct rte_fslmc_device_list *dev_l;
236 dev_l = &rte_fslmc_bus.device_list;
238 /* device is valid, add in list (sorted) */
239 if (TAILQ_EMPTY(dev_l)) {
240 TAILQ_INSERT_TAIL(dev_l, dev, next);
242 struct rte_dpaa2_device *dev2;
245 TAILQ_FOREACH(dev2, dev_l, next) {
246 ret = dpaa2_compare_dpaa2_dev(dev, dev2);
250 TAILQ_INSERT_BEFORE(dev2, dev, next);
254 TAILQ_INSERT_TAIL(dev_l, dev, next);
258 /* Following function shall fetch total available list of MC devices
259 * from VFIO container & populate private list of devices and other
262 int fslmc_vfio_process_group(void)
264 struct fslmc_vfio_device *vdev;
265 struct vfio_device_info device_info = { .argsz = sizeof(device_info) };
266 char *temp_obj, *object_type, *mcp_obj, *dev_name;
267 int32_t object_id, i, dev_fd, ret;
273 int dpio_count = 0, dpbp_count = 0;
274 struct fslmc_vfio_group *group = &vfio_groups[0];
275 static int process_once;
277 /* if already done once */
279 FSLMC_VFIO_LOG(DEBUG, "Already scanned once - re-scan "
285 sprintf(path, "/sys/kernel/iommu_groups/%d/devices", group->groupid);
289 FSLMC_VFIO_LOG(ERR, "Unable to open directory %s", path);
293 /*Counting the number of devices in a group and getting the mcp ID*/
296 while ((dir = readdir(d)) != NULL) {
297 if (dir->d_type == DT_LNK) {
299 if (!strncmp("dpmcp", dir->d_name, 5)) {
302 mcp_obj = malloc(sizeof(dir->d_name));
304 FSLMC_VFIO_LOG(ERR, "mcp obj:Unable to"
309 strcpy(mcp_obj, dir->d_name);
310 temp_obj = strtok(dir->d_name, ".");
311 temp_obj = strtok(NULL, ".");
312 sscanf(temp_obj, "%d", &mcp_id);
319 FSLMC_VFIO_LOG(ERR, "DPAA2 MCP Object not Found");
322 RTE_LOG(INFO, EAL, "fslmc: DPRC contains = %d devices\n", ndev_count);
324 /* Allocate the memory depends upon number of objects in a group*/
325 group->vfio_device = (struct fslmc_vfio_device *)malloc(ndev_count *
326 sizeof(struct fslmc_vfio_device));
327 if (!(group->vfio_device)) {
328 FSLMC_VFIO_LOG(ERR, "vfio device: Unable to allocate memory\n");
333 /* Allocate memory for MC Portal list */
334 rte_mcp_ptr_list = malloc(sizeof(void *) * 1);
335 if (!rte_mcp_ptr_list) {
336 FSLMC_VFIO_LOG(ERR, "portal list: Unable to allocate memory!");
341 v_addr = vfio_map_mcp_obj(group, mcp_obj);
343 if (v_addr == (int64_t)MAP_FAILED) {
344 FSLMC_VFIO_LOG(ERR, "Error mapping region (errno = %d)", errno);
348 FSLMC_VFIO_LOG(DEBUG, "DPAA2 MC has VIR_ADD = %ld", v_addr);
350 rte_mcp_ptr_list[0] = (void *)v_addr;
354 FSLMC_VFIO_LOG(ERR, "Unable to open %s Directory", path);
359 FSLMC_VFIO_LOG(DEBUG, "DPAA2 - Parsing devices:");
360 /* Parsing each object and initiating them*/
361 while ((dir = readdir(d)) != NULL) {
362 if (dir->d_type != DT_LNK)
364 if (!strncmp("dprc", dir->d_name, 4) ||
365 !strncmp("dpmcp", dir->d_name, 5))
367 dev_name = malloc(sizeof(dir->d_name));
369 FSLMC_VFIO_LOG(ERR, "name: Unable to allocate memory");
372 strcpy(dev_name, dir->d_name);
373 object_type = strtok(dir->d_name, ".");
374 temp_obj = strtok(NULL, ".");
375 sscanf(temp_obj, "%d", &object_id);
376 FSLMC_VFIO_LOG(DEBUG, " - %s ", dev_name);
378 /* getting the device fd*/
379 dev_fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, dev_name);
381 FSLMC_VFIO_LOG(ERR, "VFIO_GROUP_GET_DEVICE_FD error"
382 " Device fd: %s, Group: %d",
383 dev_name, group->fd);
389 vdev = &group->vfio_device[group->object_index++];
393 /* Get Device inofrmation */
394 if (ioctl(vdev->fd, VFIO_DEVICE_GET_INFO, &device_info)) {
395 FSLMC_VFIO_LOG(ERR, "DPAA2 VFIO_DEVICE_GET_INFO fail");
398 if (!strcmp(object_type, "dpni") ||
399 !strcmp(object_type, "dpseci")) {
400 struct rte_dpaa2_device *dev;
402 dev = malloc(sizeof(struct rte_dpaa2_device));
406 memset(dev, 0, sizeof(*dev));
407 /* store hw_id of dpni/dpseci device */
408 dev->object_id = object_id;
409 dev->dev_type = (strcmp(object_type, "dpseci")) ?
410 DPAA2_MC_DPNI_DEVID : DPAA2_MC_DPSECI_DEVID;
412 FSLMC_VFIO_LOG(DEBUG, "DPAA2: Added [%s-%d]\n",
413 object_type, object_id);
415 fslmc_bus_add_device(dev);
417 if (!strcmp(object_type, "dpio")) {
418 ret = dpaa2_create_dpio_device(vdev,
424 if (!strcmp(object_type, "dpbp")) {
425 ret = dpaa2_create_dpbp_device(object_id);
432 ret = dpaa2_affine_qbman_swp();
434 FSLMC_VFIO_LOG(DEBUG, "Error in affining qbman swp %d", ret);
436 FSLMC_VFIO_LOG(DEBUG, "DPAA2: Added dpbp_count = %d dpio_count=%d\n",
437 dpbp_count, dpio_count);
443 if (rte_mcp_ptr_list) {
444 free(rte_mcp_ptr_list);
445 rte_mcp_ptr_list = NULL;
448 free(group->vfio_device);
449 group->vfio_device = NULL;
453 int fslmc_vfio_setup_group(void)
455 struct fslmc_vfio_group *group = NULL;
459 struct vfio_group_status status = { .argsz = sizeof(status) };
461 /* if already done once */
462 if (container_device_fd)
465 container = getenv("DPRC");
467 if (container == NULL) {
468 FSLMC_VFIO_LOG(ERR, "VFIO container not set in env DPRC");
472 /* get group number */
473 ret = vfio_get_group_no(SYSFS_FSL_MC_DEVICES, container, &groupid);
475 RTE_LOG(WARNING, EAL, "%s not managed by VFIO, skipping\n",
480 /* if negative, something failed */
484 FSLMC_VFIO_LOG(DEBUG, "VFIO iommu group id = %d", groupid);
486 /* Check if group already exists */
487 for (i = 0; i < VFIO_MAX_GRP; i++) {
488 group = &vfio_groups[i];
489 if (group->groupid == groupid) {
490 FSLMC_VFIO_LOG(ERR, "groupid already exists %d",
496 /* get the actual group fd */
497 ret = vfio_get_group_fd(groupid);
503 * at this point, we know that this group is viable (meaning,
504 * all devices are either bound to VFIO or not bound to anything)
507 ret = ioctl(group->fd, VFIO_GROUP_GET_STATUS, &status);
509 FSLMC_VFIO_LOG(ERR, " VFIO error getting group status");
514 if (!(status.flags & VFIO_GROUP_FLAGS_VIABLE)) {
515 FSLMC_VFIO_LOG(ERR, "VFIO group not viable");
519 /* Since Group is VIABLE, Store the groupid */
520 group->groupid = groupid;
522 /* check if group does not have a container yet */
523 if (!(status.flags & VFIO_GROUP_FLAGS_CONTAINER_SET)) {
524 /* Now connect this IOMMU group to given container */
525 ret = vfio_connect_container(group);
527 FSLMC_VFIO_LOG(ERR, "VFIO error connecting container"
528 " with groupid %d", groupid);
534 /* Get Device information */
535 ret = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, container);
537 FSLMC_VFIO_LOG(ERR, "VFIO error getting device %s fd from"
538 " group %d", container, group->groupid);
541 container_device_fd = ret;
542 FSLMC_VFIO_LOG(DEBUG, "VFIO Container FD is [0x%X]",
543 container_device_fd);