#include <dirent.h>
#include <sys/eventfd.h>
+#include <eal_filesystem.h>
#include <rte_mbuf.h>
#include <rte_ethdev.h>
#include <rte_malloc.h>
#include "rte_fslmc.h"
#include "fslmc_vfio.h"
+#include <mc/fsl_dpmng.h>
#include "portal/dpaa2_hw_pvt.h"
#include "portal/dpaa2_hw_dpio.h"
-#define VFIO_MAX_CONTAINERS 1
-
#define FSLMC_VFIO_LOG(level, fmt, args...) \
- RTE_LOG(level, EAL, "%s(): " fmt "\n", __func__, ##args)
+ RTE_LOG(level, EAL, fmt "\n", ##args)
/** 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_groups[VFIO_MAX_GRP];
-static struct fslmc_vfio_container vfio_containers[VFIO_MAX_CONTAINERS];
+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 uint32_t mcp_id;
static int is_dma_done;
-static struct rte_fslmc_object_list fslmc_obj_list =
- TAILQ_HEAD_INITIALIZER(fslmc_obj_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_VERIFY(object);
- TAILQ_INSERT_TAIL(&fslmc_obj_list, object, next);
+ TAILQ_INSERT_TAIL(&dpaa2_obj_list, object, next);
}
-static int vfio_connect_container(struct fslmc_vfio_group *vfio_group)
+int
+fslmc_get_container_group(int *groupid)
{
- struct fslmc_vfio_container *container;
- int i, fd, ret;
+ int ret;
+ char *container;
- /* Try connecting to vfio container if already created */
- for (i = 0; i < VFIO_MAX_CONTAINERS; i++) {
- container = &vfio_containers[i];
- if (!ioctl(vfio_group->fd, VFIO_GROUP_SET_CONTAINER,
- &container->fd)) {
- FSLMC_VFIO_LOG(INFO,
- "Container pre-exists with FD[0x%x] for this group",
- container->fd);
- vfio_group->container = container;
- return 0;
+ if (!g_container) {
+ container = getenv("DPRC");
+ if (container == NULL) {
+ RTE_LOG(WARNING, EAL, "DPAA2: DPRC not available\n");
+ return -EINVAL;
+ }
+
+ if (strlen(container) >= FSLMC_CONTAINER_MAX_LEN) {
+ FSLMC_VFIO_LOG(ERR, "Invalid container name: %s\n",
+ container);
+ return -1;
+ }
+
+ g_container = strdup(container);
+ if (!g_container) {
+ FSLMC_VFIO_LOG(ERR, "Out of memory.");
+ return -ENOMEM;
}
}
+ /* get group number */
+ ret = vfio_get_group_no(SYSFS_FSL_MC_DEVICES, g_container, groupid);
+ if (ret <= 0) {
+ FSLMC_VFIO_LOG(ERR, "Unable to find %s IOMMU group",
+ g_container);
+ return -1;
+ }
+
+ FSLMC_VFIO_LOG(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) {
+ FSLMC_VFIO_LOG(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)) {
+ FSLMC_VFIO_LOG(INFO,
+ "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 = vfio_get_container_fd();
if (fd < 0) {
/* 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);
+ ret = ioctl(vfio_group.fd, VFIO_GROUP_SET_CONTAINER, &fd);
if (ret) {
FSLMC_VFIO_LOG(ERR, "Failed to setup group container");
close(fd);
return -EINVAL;
}
- container = NULL;
- for (i = 0; i < VFIO_MAX_CONTAINERS; i++) {
- if (vfio_containers[i].used)
- continue;
- container = &vfio_containers[i];
- }
- if (!container) {
- FSLMC_VFIO_LOG(ERR, "No free container found");
- close(fd);
- return -ENOMEM;
- }
+ vfio_container.used = 1;
+ vfio_container.fd = fd;
+ vfio_container.group = &vfio_group;
+ vfio_group.container = &vfio_container;
- container->used = 1;
- container->fd = fd;
- container->group_list[container->index] = vfio_group;
- vfio_group->container = container;
- container->index++;
return 0;
}
#endif
/* SET DMA MAP for IOMMU */
- group = &vfio_groups[0];
+ group = &vfio_group;
if (!group->container) {
FSLMC_VFIO_LOG(ERR, "Container is not connected ");
return v_addr;
}
-static inline int
-dpaa2_compare_dpaa2_dev(const struct rte_dpaa2_device *dev,
- const struct rte_dpaa2_device *dev2)
-{
- /*not the same family device */
- if (dev->dev_type != DPAA2_MC_DPNI_DEVID ||
- dev->dev_type != DPAA2_MC_DPSECI_DEVID)
- return -1;
-
- if (dev->object_id == dev2->object_id)
- return 0;
- else
- return 1;
-}
+#define IRQ_SET_BUF_LEN (sizeof(struct vfio_irq_set) + sizeof(int))
-static void
-fslmc_bus_add_device(struct rte_dpaa2_device *dev)
+int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle, int index)
{
- struct rte_fslmc_device_list *dev_l;
-
- dev_l = &rte_fslmc_bus.device_list;
-
- /* device is valid, add in list (sorted) */
- if (TAILQ_EMPTY(dev_l)) {
- TAILQ_INSERT_TAIL(dev_l, dev, next);
- } else {
- struct rte_dpaa2_device *dev2;
- int ret;
+ int len, ret;
+ char irq_set_buf[IRQ_SET_BUF_LEN];
+ struct vfio_irq_set *irq_set;
+ int *fd_ptr;
- TAILQ_FOREACH(dev2, dev_l, next) {
- ret = dpaa2_compare_dpaa2_dev(dev, dev2);
- if (ret <= 0)
- continue;
+ len = sizeof(irq_set_buf);
- TAILQ_INSERT_BEFORE(dev2, dev, next);
- return;
- }
+ 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;
- TAILQ_INSERT_TAIL(dev_l, dev, next);
+ ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
+ if (ret) {
+ RTE_LOG(ERR, EAL, "Error:dpaa2 SET IRQs fd=%d, err = %d(%s)\n",
+ intr_handle->fd, errno, strerror(errno));
+ return ret;
}
-}
-#define IRQ_SET_BUF_LEN (sizeof(struct vfio_irq_set) + sizeof(int))
+ return ret;
+}
-int rte_dpaa2_intr_enable(struct rte_intr_handle *intr_handle,
- uint32_t index)
+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 *fd_ptr, fd, ret;
+ int len, ret;
+
+ len = sizeof(struct vfio_irq_set);
- /* Prepare vfio_irq_set structure and SET the IRQ in VFIO */
- /* Give the eventfd to VFIO */
- fd = eventfd(0, 0);
irq_set = (struct vfio_irq_set *)irq_set_buf;
- irq_set->argsz = sizeof(irq_set_buf);
- irq_set->count = 1;
- irq_set->flags = VFIO_IRQ_SET_DATA_EVENTFD |
- VFIO_IRQ_SET_ACTION_TRIGGER;
+ 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;
- fd_ptr = (int *)&irq_set->data;
- *fd_ptr = fd;
+ irq_set->count = 0;
ret = ioctl(intr_handle->vfio_dev_fd, VFIO_DEVICE_SET_IRQS, irq_set);
- if (ret < 0) {
- FSLMC_VFIO_LOG(ERR, "Unable to set IRQ in VFIO, ret: %d\n",
- ret);
- return -1;
+ if (ret)
+ RTE_LOG(ERR, EAL,
+ "Error disabling dpaa2 interrupts for fd %d\n",
+ 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) {
+ FSLMC_VFIO_LOG(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) {
+ FSLMC_VFIO_LOG(ERR,
+ "cannot set up eventfd, error %i (%s)\n",
+ 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;
}
- /* Set the FD and update the flags */
- intr_handle->fd = fd;
- return 0;
+ /* if we're here, we haven't found a suitable interrupt vector */
+ return -1;
}
-/* Following function shall fetch total available list of MC devices
- * from VFIO container & populate private list of devices and other
- * data structures
+/*
+ * fslmc_process_iodevices for processing only IO (ETH, CRYPTO, and possibly
+ * EVENT) devices.
*/
-int fslmc_vfio_process_group(void)
+static int
+fslmc_process_iodevices(struct rte_dpaa2_device *dev)
{
- struct fslmc_vfio_device *vdev;
+ int dev_fd;
struct vfio_device_info device_info = { .argsz = sizeof(device_info) };
- char *temp_obj, *object_type, *mcp_obj, *dev_name;
- int32_t object_id, i, dev_fd, ret;
- DIR *d;
- struct dirent *dir;
- char path[PATH_MAX];
- int64_t v_addr;
- int ndev_count;
- struct fslmc_vfio_group *group = &vfio_groups[0];
- static int process_once;
+ struct rte_dpaa2_object *object = NULL;
- /* if already done once */
- if (process_once) {
- FSLMC_VFIO_LOG(DEBUG,
- "Already scanned once - re-scan not supported");
- return 0;
+ dev_fd = ioctl(vfio_group.fd, VFIO_GROUP_GET_DEVICE_FD,
+ dev->device.name);
+ if (dev_fd <= 0) {
+ FSLMC_VFIO_LOG(ERR, "Unable to obtain device FD for device:%s",
+ dev->device.name);
+ return -1;
}
- process_once = 0;
-
- sprintf(path, "/sys/kernel/iommu_groups/%d/devices", group->groupid);
- d = opendir(path);
- if (!d) {
- FSLMC_VFIO_LOG(ERR, "Unable to open directory %s", path);
+ if (ioctl(dev_fd, VFIO_DEVICE_GET_INFO, &device_info)) {
+ FSLMC_VFIO_LOG(ERR, "DPAA2 VFIO_DEVICE_GET_INFO fail");
return -1;
}
- /*Counting the number of devices in a group and getting the mcp ID*/
- ndev_count = 0;
- mcp_obj = NULL;
- while ((dir = readdir(d)) != NULL) {
- if (dir->d_type == DT_LNK) {
- ndev_count++;
- if (!strncmp("dpmcp", dir->d_name, 5)) {
- if (mcp_obj)
- free(mcp_obj);
- mcp_obj = malloc(sizeof(dir->d_name));
- if (!mcp_obj) {
- FSLMC_VFIO_LOG(ERR,
- "mcp obj:alloc failed");
- closedir(d);
- return -ENOMEM;
- }
- strcpy(mcp_obj, dir->d_name);
- temp_obj = strtok(dir->d_name, ".");
- temp_obj = strtok(NULL, ".");
- sscanf(temp_obj, "%d", &mcp_id);
- }
+ 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;
}
- closedir(d);
- d = NULL;
- if (!mcp_obj) {
- FSLMC_VFIO_LOG(ERR, "DPAA2 MCP Object not Found");
- return -ENODEV;
- }
- RTE_LOG(INFO, EAL, "fslmc: DPRC contains = %d devices\n", ndev_count);
-
- /* Allocate the memory depends upon number of objects in a group*/
- group->vfio_device = (struct fslmc_vfio_device *)malloc(ndev_count *
- sizeof(struct fslmc_vfio_device));
- if (!(group->vfio_device)) {
- FSLMC_VFIO_LOG(ERR, "vfio device: Unable to allocate memory\n");
- free(mcp_obj);
- return -ENOMEM;
- }
- /* Allocate memory for MC Portal list */
+ FSLMC_VFIO_LOG(DEBUG, "Device (%s) abstracted from VFIO",
+ dev->device.name);
+ return 0;
+}
+
+static int
+fslmc_process_mcp(struct rte_dpaa2_device *dev)
+{
+ int64_t v_addr;
+ char *dev_name;
+ 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) {
- FSLMC_VFIO_LOG(ERR, "portal list: Unable to allocate memory!");
- free(mcp_obj);
- goto FAILURE;
+ FSLMC_VFIO_LOG(ERR, "Out of memory");
+ return -ENOMEM;
}
- v_addr = vfio_map_mcp_obj(group, mcp_obj);
- free(mcp_obj);
- if (v_addr == (int64_t)MAP_FAILED) {
- FSLMC_VFIO_LOG(ERR, "Error mapping region (errno = %d)", errno);
- goto FAILURE;
+ dev_name = strdup(dev->device.name);
+ if (!dev_name) {
+ FSLMC_VFIO_LOG(ERR, "Out of memory.");
+ free(rte_mcp_ptr_list);
+ rte_mcp_ptr_list = NULL;
+ return -ENOMEM;
}
- rte_mcp_ptr_list[0] = (void *)v_addr;
-
- d = opendir(path);
- if (!d) {
- FSLMC_VFIO_LOG(ERR, "Unable to open %s Directory", path);
- goto FAILURE;
+ v_addr = vfio_map_mcp_obj(&vfio_group, dev_name);
+ if (v_addr == (int64_t)MAP_FAILED) {
+ FSLMC_VFIO_LOG(ERR, "Error mapping region (errno = %d)",
+ errno);
+ free(rte_mcp_ptr_list);
+ rte_mcp_ptr_list = NULL;
+ return -1;
}
- i = 0;
- /* Parsing each object and initiating them*/
- while ((dir = readdir(d)) != NULL) {
- if (dir->d_type != DT_LNK)
- continue;
- if (!strncmp("dprc", dir->d_name, 4) ||
- !strncmp("dpmcp", dir->d_name, 5))
- continue;
- dev_name = malloc(sizeof(dir->d_name));
- if (!dev_name) {
- FSLMC_VFIO_LOG(ERR, "name: Unable to allocate memory");
- goto FAILURE;
- }
- strcpy(dev_name, dir->d_name);
- object_type = strtok(dir->d_name, ".");
- temp_obj = strtok(NULL, ".");
- sscanf(temp_obj, "%d", &object_id);
-
- /* getting the device fd*/
- dev_fd = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, dev_name);
- if (dev_fd < 0) {
- FSLMC_VFIO_LOG(ERR,
- "GET_DEVICE_FD error fd: %s, Group: %d",
- dev_name, group->fd);
- free(dev_name);
- goto FAILURE;
- }
+ /* check the MC version compatibility */
+ dpmng.regs = (void *)v_addr;
+ if (mc_get_version(&dpmng, CMD_PRI_LOW, &mc_ver_info))
+ RTE_LOG(WARNING, PMD, "\tmc_get_version failed\n");
+
+ if ((mc_ver_info.major != MC_VER_MAJOR) ||
+ (mc_ver_info.minor < MC_VER_MINOR)) {
+ RTE_LOG(ERR, PMD, "DPAA2 MC version not compatible!"
+ " Expected %d.%d.x, Detected %d.%d.%d\n",
+ MC_VER_MAJOR, MC_VER_MINOR,
+ mc_ver_info.major, mc_ver_info.minor,
+ mc_ver_info.revision);
+ free(rte_mcp_ptr_list);
+ rte_mcp_ptr_list = NULL;
+ return -1;
+ }
+ rte_mcp_ptr_list[0] = (void *)v_addr;
- free(dev_name);
- vdev = &group->vfio_device[group->object_index++];
- vdev->fd = dev_fd;
- vdev->index = i;
- i++;
- /* Get Device inofrmation */
- if (ioctl(vdev->fd, VFIO_DEVICE_GET_INFO, &device_info)) {
- FSLMC_VFIO_LOG(ERR, "DPAA2 VFIO_DEVICE_GET_INFO fail");
- goto FAILURE;
- }
- if (!strcmp(object_type, "dpni") ||
- !strcmp(object_type, "dpseci")) {
- struct rte_dpaa2_device *dev;
+ return 0;
+}
- dev = malloc(sizeof(struct rte_dpaa2_device));
- if (dev == NULL)
+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) {
+ FSLMC_VFIO_LOG(DEBUG, "Unable to map Portal.");
return -1;
-
- memset(dev, 0, sizeof(*dev));
- /* store hw_id of dpni/dpseci device */
- dev->object_id = object_id;
- dev->dev_type = (strcmp(object_type, "dpseci")) ?
- DPAA2_MC_DPNI_DEVID : DPAA2_MC_DPSECI_DEVID;
-
- sprintf(dev->name, "%s.%d", object_type, object_id);
- dev->device.name = dev->name;
-
- fslmc_bus_add_device(dev);
- FSLMC_VFIO_LOG(DEBUG, "DPAA2: Added %s", dev->name);
- } else {
- /* Parse all other objects */
- struct rte_dpaa2_object *object;
-
- TAILQ_FOREACH(object, &fslmc_obj_list, next) {
- if (!strcmp(object_type, object->name))
- object->create(vdev, &device_info,
- object_id);
- else
- continue;
}
+ 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.
+ */
}
}
- closedir(d);
- ret = dpaa2_affine_qbman_swp();
- if (ret)
- FSLMC_VFIO_LOG(DEBUG, "Error in affining qbman swp %d", ret);
+ /* Cannot continue if there is not even a single mportal */
+ if (!found_mportal) {
+ FSLMC_VFIO_LOG(DEBUG,
+ "No MC Portal device found. Not continuing.");
+ return -1;
+ }
- return 0;
+ TAILQ_FOREACH_SAFE(dev, &rte_fslmc_bus.device_list, next, dev_temp) {
+ if (!dev)
+ break;
-FAILURE:
- if (d)
- closedir(d);
- if (rte_mcp_ptr_list) {
- free(rte_mcp_ptr_list);
- rte_mcp_ptr_list = NULL;
+ switch (dev->dev_type) {
+ case DPAA2_ETH:
+ case DPAA2_CRYPTO:
+ ret = fslmc_process_iodevices(dev);
+ if (ret) {
+ FSLMC_VFIO_LOG(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) {
+ FSLMC_VFIO_LOG(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 */
+ FSLMC_VFIO_LOG(DEBUG, "Found unknown device (%s).",
+ dev->device.name);
+ TAILQ_REMOVE(&rte_fslmc_bus.device_list, dev, next);
+ free(dev);
+ dev = NULL;
+ }
}
- free(group->vfio_device);
- group->vfio_device = NULL;
- return -1;
+ return 0;
}
-int fslmc_vfio_setup_group(void)
+int
+fslmc_vfio_setup_group(void)
{
- struct fslmc_vfio_group *group = NULL;
int groupid;
- int ret, i;
- char *container;
+ int ret;
struct vfio_group_status status = { .argsz = sizeof(status) };
/* if already done once */
if (container_device_fd)
return 0;
- container = getenv("DPRC");
-
- if (container == NULL) {
- FSLMC_VFIO_LOG(ERR, "VFIO container not set in env DPRC");
- return -EOPNOTSUPP;
- }
-
- /* get group number */
- ret = vfio_get_group_no(SYSFS_FSL_MC_DEVICES, container, &groupid);
- if (ret == 0) {
- RTE_LOG(WARNING, EAL, "%s not managed by VFIO, skipping\n",
- container);
- return -EOPNOTSUPP;
- }
-
- /* if negative, something failed */
- if (ret < 0)
+ ret = fslmc_get_container_group(&groupid);
+ if (ret)
return ret;
- FSLMC_VFIO_LOG(DEBUG, "VFIO iommu group id = %d", groupid);
-
- /* Check if group already exists */
- for (i = 0; i < VFIO_MAX_GRP; i++) {
- group = &vfio_groups[i];
- if (group->groupid == groupid) {
- FSLMC_VFIO_LOG(ERR, "groupid already exists %d",
- groupid);
- return 0;
- }
+ /* In case this group was already opened, continue without any
+ * processing.
+ */
+ if (vfio_group.groupid == groupid) {
+ FSLMC_VFIO_LOG(ERR, "groupid already exists %d", groupid);
+ return 0;
}
- /* get the actual group fd */
+ /* Get the actual group fd */
ret = vfio_get_group_fd(groupid);
if (ret < 0)
return ret;
- group->fd = ret;
+ vfio_group.fd = ret;
- /*
- * at this point, we know that this group is viable (meaning,
- * all devices are either bound to VFIO or not bound to anything)
- */
-
- ret = ioctl(group->fd, VFIO_GROUP_GET_STATUS, &status);
+ /* Check group viability */
+ ret = ioctl(vfio_group.fd, VFIO_GROUP_GET_STATUS, &status);
if (ret) {
- FSLMC_VFIO_LOG(ERR, " VFIO error getting group status");
- close(group->fd);
+ FSLMC_VFIO_LOG(ERR, "VFIO error getting group status");
+ close(vfio_group.fd);
return ret;
}
if (!(status.flags & VFIO_GROUP_FLAGS_VIABLE)) {
FSLMC_VFIO_LOG(ERR, "VFIO group not viable");
- close(group->fd);
+ close(vfio_group.fd);
return -EPERM;
}
/* Since Group is VIABLE, Store the groupid */
- group->groupid = 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(group);
+ ret = vfio_connect_container();
if (ret) {
- FSLMC_VFIO_LOG(ERR, "VFIO error connecting container"
- " with groupid %d", groupid);
- close(group->fd);
+ FSLMC_VFIO_LOG(ERR,
+ "Error connecting container with groupid %d",
+ groupid);
+ close(vfio_group.fd);
return ret;
}
}
/* Get Device information */
- ret = ioctl(group->fd, VFIO_GROUP_GET_DEVICE_FD, container);
+ ret = ioctl(vfio_group.fd, VFIO_GROUP_GET_DEVICE_FD, g_container);
if (ret < 0) {
- FSLMC_VFIO_LOG(ERR, "VFIO error getting device %s fd from"
- " group %d", container, group->groupid);
+ FSLMC_VFIO_LOG(ERR, "Error getting device %s fd from group %d",
+ g_container, vfio_group.groupid);
+ close(vfio_group.fd);
return ret;
}
container_device_fd = ret;
FSLMC_VFIO_LOG(DEBUG, "VFIO Container FD is [0x%X]",
- container_device_fd);
+ container_device_fd);
return 0;
}
Code Review / deb_dpdk.git / blobdiff