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Diffstat (limited to 'src/spdk/dpdk/drivers/bus/fslmc/fslmc_vfio.c')
-rw-r--r--src/spdk/dpdk/drivers/bus/fslmc/fslmc_vfio.c789
1 files changed, 789 insertions, 0 deletions
diff --git a/src/spdk/dpdk/drivers/bus/fslmc/fslmc_vfio.c b/src/spdk/dpdk/drivers/bus/fslmc/fslmc_vfio.c
new file mode 100644
index 00000000..4c2cd2a8
--- /dev/null
+++ b/src/spdk/dpdk/drivers/bus/fslmc/fslmc_vfio.c
@@ -0,0 +1,789 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ *
+ * Copyright (c) 2015-2016 Freescale Semiconductor, Inc. All rights reserved.
+ * Copyright 2016 NXP
+ *
+ */
+
+#include <unistd.h>
+#include <stdio.h>
+#include <sys/types.h>
+#include <string.h>
+#include <stdlib.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/ioctl.h>
+#include <sys/stat.h>
+#include <sys/mman.h>
+#include <sys/vfs.h>
+#include <libgen.h>
+#include <dirent.h>
+#include <sys/eventfd.h>
+
+#include <eal_filesystem.h>
+#include <rte_mbuf.h>
+#include <rte_ethdev_driver.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_string_fns.h>
+#include <rte_cycles.h>
+#include <rte_kvargs.h>
+#include <rte_dev.h>
+#include <rte_bus.h>
+#include <rte_eal_memconfig.h>
+
+#include "rte_fslmc.h"
+#include "fslmc_vfio.h"
+#include "fslmc_logs.h"
+#include <mc/fsl_dpmng.h>
+
+#include "portal/dpaa2_hw_pvt.h"
+#include "portal/dpaa2_hw_dpio.h"
+
+/** Pathname of FSL-MC devices directory. */
+#define SYSFS_FSL_MC_DEVICES "/sys/bus/fsl-mc/devices"
+
+#define FSLMC_CONTAINER_MAX_LEN 8 /**< Of the format dprc.XX */
+
+/* Number of VFIO containers & groups with in */
+static struct fslmc_vfio_group vfio_group;
+static struct fslmc_vfio_container vfio_container;
+static int container_device_fd;
+static char *g_container;
+static uint32_t *msi_intr_vaddr;
+void *(*rte_mcp_ptr_list);
+
+static struct rte_dpaa2_object_list dpaa2_obj_list =
+ TAILQ_HEAD_INITIALIZER(dpaa2_obj_list);
+
+/*register a fslmc bus based dpaa2 driver */
+void
+rte_fslmc_object_register(struct rte_dpaa2_object *object)
+{
+ RTE_VERIFY(object);
+
+ TAILQ_INSERT_TAIL(&dpaa2_obj_list, object, next);
+}
+
+int
+fslmc_get_container_group(int *groupid)
+{
+ int ret;
+ char *container;
+
+ if (!g_container) {
+ container = getenv("DPRC");
+ if (container == NULL) {
+ DPAA2_BUS_DEBUG("DPAA2: DPRC not available");
+ return -EINVAL;
+ }
+
+ if (strlen(container) >= FSLMC_CONTAINER_MAX_LEN) {
+ DPAA2_BUS_ERR("Invalid container name: %s", container);
+ return -1;
+ }
+
+ g_container = strdup(container);
+ if (!g_container) {
+ DPAA2_BUS_ERR("Mem alloc failure; Container name");
+ return -ENOMEM;
+ }
+ }
+
+ /* get group number */
+ ret = rte_vfio_get_group_num(SYSFS_FSL_MC_DEVICES,
+ g_container, groupid);
+ if (ret <= 0) {
+ DPAA2_BUS_ERR("Unable to find %s IOMMU group", g_container);
+ return -1;
+ }
+
+ DPAA2_BUS_DEBUG("Container: %s has VFIO iommu group id = %d",
+ g_container, *groupid);
+
+ return 0;
+}
+
+static int
+vfio_connect_container(void)
+{
+ int fd, ret;
+
+ if (vfio_container.used) {
+ DPAA2_BUS_DEBUG("No container available");
+ return -1;
+ }
+
+ /* Try connecting to vfio container if already created */
+ if (!ioctl(vfio_group.fd, VFIO_GROUP_SET_CONTAINER,
+ &vfio_container.fd)) {
+ DPAA2_BUS_DEBUG(
+ "Container pre-exists with FD[0x%x] for this group",
+ vfio_container.fd);
+ vfio_group.container = &vfio_container;
+ return 0;
+ }
+
+ /* Opens main vfio file descriptor which represents the "container" */
+ fd = rte_vfio_get_container_fd();
+ if (fd < 0) {
+ DPAA2_BUS_ERR("Failed to open VFIO container");
+ return -errno;
+ }
+
+ /* Check whether support for SMMU type IOMMU present or not */
+ if (ioctl(fd, VFIO_CHECK_EXTENSION, VFIO_TYPE1_IOMMU)) {
+ /* Connect group to container */
+ ret = ioctl(vfio_group.fd, VFIO_GROUP_SET_CONTAINER, &fd);
+ if (ret) {
+ DPAA2_BUS_ERR("Failed to setup group container");
+ close(fd);
+ return -errno;
+ }
+
+ ret = ioctl(fd, VFIO_SET_IOMMU, VFIO_TYPE1_IOMMU);
+ if (ret) {
+ DPAA2_BUS_ERR("Failed to setup VFIO iommu");
+ close(fd);
+ return -errno;
+ }
+ } else {
+ DPAA2_BUS_ERR("No supported IOMMU available");
+ close(fd);
+ return -EINVAL;
+ }
+
+ vfio_container.used = 1;
+ vfio_container.fd = fd;
+ vfio_container.group = &vfio_group;
+ vfio_group.container = &vfio_container;
+
+ return 0;
+}
+
+static int vfio_map_irq_region(struct fslmc_vfio_group *group)
+{
+ int ret;
+ unsigned long *vaddr = NULL;
+ struct vfio_iommu_type1_dma_map map = {
+ .argsz = sizeof(map),
+ .flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
+ .vaddr = 0x6030000,
+ .iova = 0x6030000,
+ .size = 0x1000,
+ };
+
+ vaddr = (unsigned long *)mmap(NULL, 0x1000, PROT_WRITE |
+ PROT_READ, MAP_SHARED, container_device_fd, 0x6030000);
+ if (vaddr == MAP_FAILED) {
+ DPAA2_BUS_ERR("Unable to map region (errno = %d)", errno);
+ return -errno;
+ }
+
+ msi_intr_vaddr = (uint32_t *)((char *)(vaddr) + 64);
+ map.vaddr = (unsigned long)vaddr;
+ ret = ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &map);
+ if (ret == 0)
+ return 0;
+
+ DPAA2_BUS_ERR("Unable to map DMA address (errno = %d)", errno);
+ return -errno;
+}
+
+static int fslmc_map_dma(uint64_t vaddr, rte_iova_t iovaddr, size_t len);
+static int fslmc_unmap_dma(uint64_t vaddr, rte_iova_t iovaddr, size_t len);
+
+static void
+fslmc_memevent_cb(enum rte_mem_event type, const void *addr, size_t len,
+ void *arg __rte_unused)
+{
+ struct rte_memseg_list *msl;
+ struct rte_memseg *ms;
+ size_t cur_len = 0, map_len = 0;
+ uint64_t virt_addr;
+ rte_iova_t iova_addr;
+ int ret;
+
+ msl = rte_mem_virt2memseg_list(addr);
+
+ while (cur_len < len) {
+ const void *va = RTE_PTR_ADD(addr, cur_len);
+
+ ms = rte_mem_virt2memseg(va, msl);
+ iova_addr = ms->iova;
+ virt_addr = ms->addr_64;
+ map_len = ms->len;
+
+ DPAA2_BUS_DEBUG("Request for %s, va=%p, "
+ "virt_addr=0x%" PRIx64 ", "
+ "iova=0x%" PRIx64 ", map_len=%zu",
+ type == RTE_MEM_EVENT_ALLOC ?
+ "alloc" : "dealloc",
+ va, virt_addr, iova_addr, map_len);
+
+ if (type == RTE_MEM_EVENT_ALLOC)
+ ret = fslmc_map_dma(virt_addr, iova_addr, map_len);
+ else
+ ret = fslmc_unmap_dma(virt_addr, iova_addr, map_len);
+
+ if (ret != 0) {
+ DPAA2_BUS_ERR("DMA Mapping/Unmapping failed. "
+ "Map=%d, addr=%p, len=%zu, err:(%d)",
+ type, va, map_len, ret);
+ return;
+ }
+
+ cur_len += map_len;
+ }
+
+ if (type == RTE_MEM_EVENT_ALLOC)
+ DPAA2_BUS_DEBUG("Total Mapped: addr=%p, len=%zu",
+ addr, len);
+ else
+ DPAA2_BUS_DEBUG("Total Unmapped: addr=%p, len=%zu",
+ addr, len);
+}
+
+static int
+fslmc_map_dma(uint64_t vaddr, rte_iova_t iovaddr __rte_unused, size_t len)
+{
+ struct fslmc_vfio_group *group;
+ struct vfio_iommu_type1_dma_map dma_map = {
+ .argsz = sizeof(struct vfio_iommu_type1_dma_map),
+ .flags = VFIO_DMA_MAP_FLAG_READ | VFIO_DMA_MAP_FLAG_WRITE,
+ };
+ int ret;
+
+ dma_map.size = len;
+ dma_map.vaddr = vaddr;
+
+#ifdef RTE_LIBRTE_DPAA2_USE_PHYS_IOVA
+ dma_map.iova = iovaddr;
+#else
+ dma_map.iova = dma_map.vaddr;
+#endif
+
+ /* SET DMA MAP for IOMMU */
+ group = &vfio_group;
+
+ if (!group->container) {
+ DPAA2_BUS_ERR("Container is not connected ");
+ return -1;
+ }
+
+ DPAA2_BUS_DEBUG("--> Map address: 0x%"PRIx64", size: %"PRIu64"",
+ (uint64_t)dma_map.vaddr, (uint64_t)dma_map.size);
+ ret = ioctl(group->container->fd, VFIO_IOMMU_MAP_DMA, &dma_map);
+ if (ret) {
+ DPAA2_BUS_ERR("VFIO_IOMMU_MAP_DMA API(errno = %d)",
+ errno);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+fslmc_unmap_dma(uint64_t vaddr, uint64_t iovaddr __rte_unused, size_t len)
+{
+ struct fslmc_vfio_group *group;
+ struct vfio_iommu_type1_dma_unmap dma_unmap = {
+ .argsz = sizeof(struct vfio_iommu_type1_dma_unmap),
+ .flags = 0,
+ };
+ int ret;
+
+ dma_unmap.size = len;
+ dma_unmap.iova = vaddr;
+
+ /* SET DMA MAP for IOMMU */
+ group = &vfio_group;
+
+ if (!group->container) {
+ DPAA2_BUS_ERR("Container is not connected ");
+ return -1;
+ }
+
+ DPAA2_BUS_DEBUG("--> Unmap address: 0x%"PRIx64", size: %"PRIu64"",
+ (uint64_t)dma_unmap.iova, (uint64_t)dma_unmap.size);
+ ret = ioctl(group->container->fd, VFIO_IOMMU_UNMAP_DMA, &dma_unmap);
+ if (ret) {
+ DPAA2_BUS_ERR("VFIO_IOMMU_UNMAP_DMA API(errno = %d)",
+ errno);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+fslmc_dmamap_seg(const struct rte_memseg_list *msl __rte_unused,
+ const struct rte_memseg *ms, void *arg)
+{
+ int *n_segs = arg;
+ int ret;
+
+ ret = fslmc_map_dma(ms->addr_64, ms->iova, ms->len);
+ if (ret)
+ DPAA2_BUS_ERR("Unable to VFIO map (addr=%p, len=%zu)",
+ ms->addr, ms->len);
+ else
+ (*n_segs)++;
+
+ return ret;
+}
+
+int rte_fslmc_vfio_dmamap(void)
+{
+ int i = 0, ret;
+ struct rte_mem_config *mcfg = rte_eal_get_configuration()->mem_config;
+ rte_rwlock_t *mem_lock = &mcfg->memory_hotplug_lock;
+
+ /* Lock before parsing and registering callback to memory subsystem */
+ rte_rwlock_read_lock(mem_lock);
+
+ if (rte_memseg_walk(fslmc_dmamap_seg, &i) < 0) {
+ rte_rwlock_read_unlock(mem_lock);
+ return -1;
+ }
+
+ ret = rte_mem_event_callback_register("fslmc_memevent_clb",
+ fslmc_memevent_cb, NULL);
+ if (ret && rte_errno == ENOTSUP)
+ DPAA2_BUS_DEBUG("Memory event callbacks not supported");
+ else if (ret)
+ DPAA2_BUS_DEBUG("Unable to install memory handler");
+ else
+ DPAA2_BUS_DEBUG("Installed memory callback handler");
+
+ DPAA2_BUS_DEBUG("Total %d segments found.", i);
+
+ /* TODO - This is a W.A. as VFIO currently does not add the mapping of
+ * the interrupt region to SMMU. This should be removed once the
+ * support is added in the Kernel.
+ */
+ vfio_map_irq_region(&vfio_group);
+
+ /* Existing segments have been mapped and memory callback for hotplug
+ * has been installed.
+ */
+ rte_rwlock_read_unlock(mem_lock);
+
+ return 0;
+}
+
+static int64_t vfio_map_mcp_obj(struct fslmc_vfio_group *group, char *mcp_obj)
+{
+ intptr_t v_addr = (intptr_t)MAP_FAILED;
+ int32_t ret, mc_fd;
+
+ struct vfio_device_info d_info = { .argsz = sizeof(d_info) };
+ struct vfio_region_info reg_info = { .argsz = sizeof(reg_info) };
+
+ /* getting the mcp object's fd*/
+ mc_fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, mcp_obj);
+ if (mc_fd < 0) {
+ DPAA2_BUS_ERR("Error in VFIO get dev %s fd from group %d",
+ mcp_obj, group->fd);
+ return v_addr;
+ }
+
+ /* getting device info*/
+ ret = ioctl(mc_fd, VFIO_DEVICE_GET_INFO, &d_info);
+ if (ret < 0) {
+ DPAA2_BUS_ERR("Error in VFIO getting DEVICE_INFO");
+ goto MC_FAILURE;
+ }
+
+ /* getting device region info*/
+ ret = ioctl(mc_fd, VFIO_DEVICE_GET_REGION_INFO, &reg_info);
+ if (ret < 0) {
+ DPAA2_BUS_ERR("Error in VFIO getting REGION_INFO");
+ goto MC_FAILURE;
+ }
+
+ v_addr = (size_t)mmap(NULL, reg_info.size,
+ PROT_WRITE | PROT_READ, MAP_SHARED,
+ mc_fd, reg_info.offset);
+
+MC_FAILURE:
+ close(mc_fd);
+
+ return v_addr;
+}
+
+#define IRQ_SET_BUF_LEN (sizeof(struct vfio_irq_set) + sizeof(int))
+
+int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle, int index)
+{
+ int len, ret;
+ char irq_set_buf[IRQ_SET_BUF_LEN];
+ struct vfio_irq_set *irq_set;
+ int *fd_ptr;
+
+ len = sizeof(irq_set_buf);
+
+ irq_set = (struct vfio_irq_set *)irq_set_buf;
+ irq_set->argsz = len;
+ irq_set->count = 1;
+ irq_set->flags =
+ VFIO_IRQ_SET_DATA_EVENTFD | VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = index;
+ irq_set->start = 0;
+ fd_ptr = (int *)&irq_set->data;
+ *fd_ptr = intr_handle->fd;
+
+ ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret) {
+ DPAA2_BUS_ERR("Error:dpaa2 SET IRQs fd=%d, err = %d(%s)",
+ intr_handle->fd, errno, strerror(errno));
+ return ret;
+ }
+
+ return ret;
+}
+
+int rte_dpaa2_intr_disable(struct rte_intr_handle *intr_handle, int index)
+{
+ struct vfio_irq_set *irq_set;
+ char irq_set_buf[IRQ_SET_BUF_LEN];
+ int len, ret;
+
+ len = sizeof(struct vfio_irq_set);
+
+ irq_set = (struct vfio_irq_set *)irq_set_buf;
+ irq_set->argsz = len;
+ irq_set->flags = VFIO_IRQ_SET_DATA_NONE | VFIO_IRQ_SET_ACTION_TRIGGER;
+ irq_set->index = index;
+ irq_set->start = 0;
+ irq_set->count = 0;
+
+ ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret)
+ DPAA2_BUS_ERR(
+ "Error disabling dpaa2 interrupts for fd %d",
+ intr_handle->fd);
+
+ return ret;
+}
+
+/* set up interrupt support (but not enable interrupts) */
+int
+rte_dpaa2_vfio_setup_intr(struct rte_intr_handle *intr_handle,
+ int vfio_dev_fd,
+ int num_irqs)
+{
+ int i, ret;
+
+ /* start from MSI-X interrupt type */
+ for (i = 0; i < num_irqs; i++) {
+ struct vfio_irq_info irq_info = { .argsz = sizeof(irq_info) };
+ int fd = -1;
+
+ irq_info.index = i;
+
+ ret = ioctl(vfio_dev_fd, VFIO_DEVICE_GET_IRQ_INFO, &irq_info);
+ if (ret < 0) {
+ DPAA2_BUS_ERR("Cannot get IRQ(%d) info, error %i (%s)",
+ i, errno, strerror(errno));
+ return -1;
+ }
+
+ /* if this vector cannot be used with eventfd,
+ * fail if we explicitly
+ * specified interrupt type, otherwise continue
+ */
+ if ((irq_info.flags & VFIO_IRQ_INFO_EVENTFD) == 0)
+ continue;
+
+ /* set up an eventfd for interrupts */
+ fd = eventfd(0, EFD_NONBLOCK | EFD_CLOEXEC);
+ if (fd < 0) {
+ DPAA2_BUS_ERR("Cannot set up eventfd, error %i (%s)",
+ errno, strerror(errno));
+ return -1;
+ }
+
+ intr_handle->fd = fd;
+ intr_handle->type = RTE_INTR_HANDLE_VFIO_MSI;
+ intr_handle->vfio_dev_fd = vfio_dev_fd;
+
+ return 0;
+ }
+
+ /* if we're here, we haven't found a suitable interrupt vector */
+ return -1;
+}
+
+/*
+ * fslmc_process_iodevices for processing only IO (ETH, CRYPTO, and possibly
+ * EVENT) devices.
+ */
+static int
+fslmc_process_iodevices(struct rte_dpaa2_device *dev)
+{
+ int dev_fd;
+ struct vfio_device_info device_info = { .argsz = sizeof(device_info) };
+ struct rte_dpaa2_object *object = NULL;
+
+ dev_fd = ioctl(vfio_group.fd, VFIO_GROUP_GET_DEVICE_FD,
+ dev->device.name);
+ if (dev_fd <= 0) {
+ DPAA2_BUS_ERR("Unable to obtain device FD for device:%s",
+ dev->device.name);
+ return -1;
+ }
+
+ if (ioctl(dev_fd, VFIO_DEVICE_GET_INFO, &device_info)) {
+ DPAA2_BUS_ERR("Unable to obtain information for device:%s",
+ dev->device.name);
+ return -1;
+ }
+
+ switch (dev->dev_type) {
+ case DPAA2_ETH:
+ rte_dpaa2_vfio_setup_intr(&dev->intr_handle, dev_fd,
+ device_info.num_irqs);
+ break;
+ case DPAA2_CON:
+ case DPAA2_IO:
+ case DPAA2_CI:
+ case DPAA2_BPOOL:
+ TAILQ_FOREACH(object, &dpaa2_obj_list, next) {
+ if (dev->dev_type == object->dev_type)
+ object->create(dev_fd, &device_info,
+ dev->object_id);
+ else
+ continue;
+ }
+ break;
+ default:
+ break;
+ }
+
+ DPAA2_BUS_LOG(DEBUG, "Device (%s) abstracted from VFIO",
+ dev->device.name);
+ return 0;
+}
+
+static int
+fslmc_process_mcp(struct rte_dpaa2_device *dev)
+{
+ int ret;
+ intptr_t v_addr;
+ char *dev_name = NULL;
+ struct fsl_mc_io dpmng = {0};
+ struct mc_version mc_ver_info = {0};
+
+ rte_mcp_ptr_list = malloc(sizeof(void *) * 1);
+ if (!rte_mcp_ptr_list) {
+ DPAA2_BUS_ERR("Unable to allocate MC portal memory");
+ ret = -ENOMEM;
+ goto cleanup;
+ }
+
+ dev_name = strdup(dev->device.name);
+ if (!dev_name) {
+ DPAA2_BUS_ERR("Unable to allocate MC device name memory");
+ ret = -ENOMEM;
+ goto cleanup;
+ }
+
+ v_addr = vfio_map_mcp_obj(&vfio_group, dev_name);
+ if (v_addr == (intptr_t)MAP_FAILED) {
+ DPAA2_BUS_ERR("Error mapping region (errno = %d)", errno);
+ ret = -1;
+ goto cleanup;
+ }
+
+ /* check the MC version compatibility */
+ dpmng.regs = (void *)v_addr;
+ if (mc_get_version(&dpmng, CMD_PRI_LOW, &mc_ver_info)) {
+ DPAA2_BUS_ERR("Unable to obtain MC version");
+ ret = -1;
+ goto cleanup;
+ }
+
+ if ((mc_ver_info.major != MC_VER_MAJOR) ||
+ (mc_ver_info.minor < MC_VER_MINOR)) {
+ DPAA2_BUS_ERR("DPAA2 MC version not compatible!"
+ " Expected %d.%d.x, Detected %d.%d.%d",
+ MC_VER_MAJOR, MC_VER_MINOR,
+ mc_ver_info.major, mc_ver_info.minor,
+ mc_ver_info.revision);
+ ret = -1;
+ goto cleanup;
+ }
+ rte_mcp_ptr_list[0] = (void *)v_addr;
+
+ free(dev_name);
+ return 0;
+
+cleanup:
+ if (dev_name)
+ free(dev_name);
+
+ if (rte_mcp_ptr_list) {
+ free(rte_mcp_ptr_list);
+ rte_mcp_ptr_list = NULL;
+ }
+
+ return ret;
+}
+
+int
+fslmc_vfio_process_group(void)
+{
+ int ret;
+ int found_mportal = 0;
+ struct rte_dpaa2_device *dev, *dev_temp;
+
+ /* Search the MCP as that should be initialized first. */
+ TAILQ_FOREACH_SAFE(dev, &rte_fslmc_bus.device_list, next, dev_temp) {
+ if (dev->dev_type == DPAA2_MPORTAL) {
+ ret = fslmc_process_mcp(dev);
+ if (ret) {
+ DPAA2_BUS_ERR("Unable to map MC Portal");
+ return -1;
+ }
+ if (!found_mportal)
+ found_mportal = 1;
+
+ TAILQ_REMOVE(&rte_fslmc_bus.device_list, dev, next);
+ free(dev);
+ dev = NULL;
+ /* Ideally there is only a single dpmcp, but in case
+ * multiple exists, looping on remaining devices.
+ */
+ }
+ }
+
+ /* Cannot continue if there is not even a single mportal */
+ if (!found_mportal) {
+ DPAA2_BUS_ERR("No MC Portal device found. Not continuing");
+ return -1;
+ }
+
+ TAILQ_FOREACH_SAFE(dev, &rte_fslmc_bus.device_list, next, dev_temp) {
+ switch (dev->dev_type) {
+ case DPAA2_ETH:
+ case DPAA2_CRYPTO:
+ case DPAA2_QDMA:
+ ret = fslmc_process_iodevices(dev);
+ if (ret) {
+ DPAA2_BUS_DEBUG("Dev (%s) init failed",
+ dev->device.name);
+ return ret;
+ }
+ break;
+ case DPAA2_CON:
+ case DPAA2_IO:
+ case DPAA2_CI:
+ case DPAA2_BPOOL:
+ /* Call the object creation routine and remove the
+ * device entry from device list
+ */
+ ret = fslmc_process_iodevices(dev);
+ if (ret) {
+ DPAA2_BUS_DEBUG("Dev (%s) init failed",
+ dev->device.name);
+ return -1;
+ }
+
+ /* This device is not required to be in the DPDK
+ * exposed device list.
+ */
+ TAILQ_REMOVE(&rte_fslmc_bus.device_list, dev, next);
+ free(dev);
+ dev = NULL;
+ break;
+ case DPAA2_UNKNOWN:
+ default:
+ /* Unknown - ignore */
+ DPAA2_BUS_DEBUG("Found unknown device (%s)",
+ dev->device.name);
+ TAILQ_REMOVE(&rte_fslmc_bus.device_list, dev, next);
+ free(dev);
+ dev = NULL;
+ }
+ }
+
+ return 0;
+}
+
+int
+fslmc_vfio_setup_group(void)
+{
+ int groupid;
+ int ret;
+ struct vfio_group_status status = { .argsz = sizeof(status) };
+
+ /* if already done once */
+ if (container_device_fd)
+ return 0;
+
+ ret = fslmc_get_container_group(&groupid);
+ if (ret)
+ return ret;
+
+ /* In case this group was already opened, continue without any
+ * processing.
+ */
+ if (vfio_group.groupid == groupid) {
+ DPAA2_BUS_ERR("groupid already exists %d", groupid);
+ return 0;
+ }
+
+ /* Get the actual group fd */
+ ret = rte_vfio_get_group_fd(groupid);
+ if (ret < 0)
+ return ret;
+ vfio_group.fd = ret;
+
+ /* Check group viability */
+ ret = ioctl(vfio_group.fd, VFIO_GROUP_GET_STATUS, &status);
+ if (ret) {
+ DPAA2_BUS_ERR("VFIO error getting group status");
+ close(vfio_group.fd);
+ rte_vfio_clear_group(vfio_group.fd);
+ return ret;
+ }
+
+ if (!(status.flags & VFIO_GROUP_FLAGS_VIABLE)) {
+ DPAA2_BUS_ERR("VFIO group not viable");
+ close(vfio_group.fd);
+ rte_vfio_clear_group(vfio_group.fd);
+ return -EPERM;
+ }
+ /* Since Group is VIABLE, Store the groupid */
+ vfio_group.groupid = groupid;
+
+ /* check if group does not have a container yet */
+ if (!(status.flags & VFIO_GROUP_FLAGS_CONTAINER_SET)) {
+ /* Now connect this IOMMU group to given container */
+ ret = vfio_connect_container();
+ if (ret) {
+ DPAA2_BUS_ERR(
+ "Error connecting container with groupid %d",
+ groupid);
+ close(vfio_group.fd);
+ rte_vfio_clear_group(vfio_group.fd);
+ return ret;
+ }
+ }
+
+ /* Get Device information */
+ ret = ioctl(vfio_group.fd, VFIO_GROUP_GET_DEVICE_FD, g_container);
+ if (ret < 0) {
+ DPAA2_BUS_ERR("Error getting device %s fd from group %d",
+ g_container, vfio_group.groupid);
+ close(vfio_group.fd);
+ rte_vfio_clear_group(vfio_group.fd);
+ return ret;
+ }
+ container_device_fd = ret;
+ DPAA2_BUS_DEBUG("VFIO Container FD is [0x%X]",
+ container_device_fd);
+
+ return 0;
+}
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-27 01:23:16 +0000