diff options
Diffstat (limited to 'lib/librte_eventdev/rte_eventdev.c')
| -rw-r--r-- | lib/librte_eventdev/rte_eventdev.c | 1345 |
1 files changed, 1345 insertions, 0 deletions
diff --git a/lib/librte_eventdev/rte_eventdev.c b/lib/librte_eventdev/rte_eventdev.c new file mode 100644 index 00000000..20afc3f0 --- /dev/null +++ b/lib/librte_eventdev/rte_eventdev.c @@ -0,0 +1,1345 @@ +/* + * BSD LICENSE + * + * Copyright(c) 2016 Cavium networks. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * * Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * * Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * * Neither the name of Cavium networks nor the names of its + * contributors may be used to endorse or promote products derived + * from this software without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR + * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT + * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, + * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT + * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, + * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY + * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT + * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE + * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + */ + +#include <ctype.h> +#include <stdio.h> +#include <stdlib.h> +#include <string.h> +#include <stdarg.h> +#include <errno.h> +#include <stdint.h> +#include <inttypes.h> +#include <sys/types.h> +#include <sys/queue.h> + +#include <rte_byteorder.h> +#include <rte_log.h> +#include <rte_debug.h> +#include <rte_dev.h> +#include <rte_pci.h> +#include <rte_memory.h> +#include <rte_memcpy.h> +#include <rte_memzone.h> +#include <rte_eal.h> +#include <rte_per_lcore.h> +#include <rte_lcore.h> +#include <rte_atomic.h> +#include <rte_branch_prediction.h> +#include <rte_common.h> +#include <rte_malloc.h> +#include <rte_errno.h> + +#include "rte_eventdev.h" +#include "rte_eventdev_pmd.h" + +struct rte_eventdev rte_event_devices[RTE_EVENT_MAX_DEVS]; + +struct rte_eventdev *rte_eventdevs = &rte_event_devices[0]; + +static struct rte_eventdev_global eventdev_globals = { + .nb_devs = 0 +}; + +struct rte_eventdev_global *rte_eventdev_globals = &eventdev_globals; + +/* Event dev north bound API implementation */ + +uint8_t +rte_event_dev_count(void) +{ + return rte_eventdev_globals->nb_devs; +} + +int +rte_event_dev_get_dev_id(const char *name) +{ + int i; + + if (!name) + return -EINVAL; + + for (i = 0; i < rte_eventdev_globals->nb_devs; i++) + if ((strcmp(rte_event_devices[i].data->name, name) + == 0) && + (rte_event_devices[i].attached == + RTE_EVENTDEV_ATTACHED)) + return i; + return -ENODEV; +} + +int +rte_event_dev_socket_id(uint8_t dev_id) +{ + struct rte_eventdev *dev; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + + return dev->data->socket_id; +} + +int +rte_event_dev_info_get(uint8_t dev_id, struct rte_event_dev_info *dev_info) +{ + struct rte_eventdev *dev; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + + if (dev_info == NULL) + return -EINVAL; + + memset(dev_info, 0, sizeof(struct rte_event_dev_info)); + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP); + (*dev->dev_ops->dev_infos_get)(dev, dev_info); + + dev_info->dequeue_timeout_ns = dev->data->dev_conf.dequeue_timeout_ns; + + dev_info->dev = dev->dev; + if (dev->driver) + dev_info->driver_name = dev->driver->pci_drv.driver.name; + return 0; +} + +static inline int +rte_event_dev_queue_config(struct rte_eventdev *dev, uint8_t nb_queues) +{ + uint8_t old_nb_queues = dev->data->nb_queues; + uint8_t *queues_prio; + unsigned int i; + + RTE_EDEV_LOG_DEBUG("Setup %d queues on device %u", nb_queues, + dev->data->dev_id); + + /* First time configuration */ + if (dev->data->queues_prio == NULL && nb_queues != 0) { + /* Allocate memory to store queue priority */ + dev->data->queues_prio = rte_zmalloc_socket( + "eventdev->data->queues_prio", + sizeof(dev->data->queues_prio[0]) * nb_queues, + RTE_CACHE_LINE_SIZE, dev->data->socket_id); + if (dev->data->queues_prio == NULL) { + dev->data->nb_queues = 0; + RTE_EDEV_LOG_ERR("failed to get mem for queue priority," + "nb_queues %u", nb_queues); + return -(ENOMEM); + } + /* Re-configure */ + } else if (dev->data->queues_prio != NULL && nb_queues != 0) { + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_release, -ENOTSUP); + + for (i = nb_queues; i < old_nb_queues; i++) + (*dev->dev_ops->queue_release)(dev, i); + + /* Re allocate memory to store queue priority */ + queues_prio = dev->data->queues_prio; + queues_prio = rte_realloc(queues_prio, + sizeof(queues_prio[0]) * nb_queues, + RTE_CACHE_LINE_SIZE); + if (queues_prio == NULL) { + RTE_EDEV_LOG_ERR("failed to realloc queue priority," + " nb_queues %u", nb_queues); + return -(ENOMEM); + } + dev->data->queues_prio = queues_prio; + + if (nb_queues > old_nb_queues) { + uint8_t new_qs = nb_queues - old_nb_queues; + + memset(queues_prio + old_nb_queues, 0, + sizeof(queues_prio[0]) * new_qs); + } + } else if (dev->data->queues_prio != NULL && nb_queues == 0) { + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_release, -ENOTSUP); + + for (i = nb_queues; i < old_nb_queues; i++) + (*dev->dev_ops->queue_release)(dev, i); + } + + dev->data->nb_queues = nb_queues; + return 0; +} + +#define EVENT_QUEUE_SERVICE_PRIORITY_INVALID (0xdead) + +static inline int +rte_event_dev_port_config(struct rte_eventdev *dev, uint8_t nb_ports) +{ + uint8_t old_nb_ports = dev->data->nb_ports; + void **ports; + uint16_t *links_map; + uint8_t *ports_dequeue_depth; + uint8_t *ports_enqueue_depth; + unsigned int i; + + RTE_EDEV_LOG_DEBUG("Setup %d ports on device %u", nb_ports, + dev->data->dev_id); + + /* First time configuration */ + if (dev->data->ports == NULL && nb_ports != 0) { + dev->data->ports = rte_zmalloc_socket("eventdev->data->ports", + sizeof(dev->data->ports[0]) * nb_ports, + RTE_CACHE_LINE_SIZE, dev->data->socket_id); + if (dev->data->ports == NULL) { + dev->data->nb_ports = 0; + RTE_EDEV_LOG_ERR("failed to get mem for port meta data," + "nb_ports %u", nb_ports); + return -(ENOMEM); + } + + /* Allocate memory to store ports dequeue depth */ + dev->data->ports_dequeue_depth = + rte_zmalloc_socket("eventdev->ports_dequeue_depth", + sizeof(dev->data->ports_dequeue_depth[0]) * nb_ports, + RTE_CACHE_LINE_SIZE, dev->data->socket_id); + if (dev->data->ports_dequeue_depth == NULL) { + dev->data->nb_ports = 0; + RTE_EDEV_LOG_ERR("failed to get mem for port deq meta," + "nb_ports %u", nb_ports); + return -(ENOMEM); + } + + /* Allocate memory to store ports enqueue depth */ + dev->data->ports_enqueue_depth = + rte_zmalloc_socket("eventdev->ports_enqueue_depth", + sizeof(dev->data->ports_enqueue_depth[0]) * nb_ports, + RTE_CACHE_LINE_SIZE, dev->data->socket_id); + if (dev->data->ports_enqueue_depth == NULL) { + dev->data->nb_ports = 0; + RTE_EDEV_LOG_ERR("failed to get mem for port enq meta," + "nb_ports %u", nb_ports); + return -(ENOMEM); + } + + /* Allocate memory to store queue to port link connection */ + dev->data->links_map = + rte_zmalloc_socket("eventdev->links_map", + sizeof(dev->data->links_map[0]) * nb_ports * + RTE_EVENT_MAX_QUEUES_PER_DEV, + RTE_CACHE_LINE_SIZE, dev->data->socket_id); + if (dev->data->links_map == NULL) { + dev->data->nb_ports = 0; + RTE_EDEV_LOG_ERR("failed to get mem for port_map area," + "nb_ports %u", nb_ports); + return -(ENOMEM); + } + for (i = 0; i < nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV; i++) + dev->data->links_map[i] = + EVENT_QUEUE_SERVICE_PRIORITY_INVALID; + } else if (dev->data->ports != NULL && nb_ports != 0) {/* re-config */ + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_release, -ENOTSUP); + + ports = dev->data->ports; + ports_dequeue_depth = dev->data->ports_dequeue_depth; + ports_enqueue_depth = dev->data->ports_enqueue_depth; + links_map = dev->data->links_map; + + for (i = nb_ports; i < old_nb_ports; i++) + (*dev->dev_ops->port_release)(ports[i]); + + /* Realloc memory for ports */ + ports = rte_realloc(ports, sizeof(ports[0]) * nb_ports, + RTE_CACHE_LINE_SIZE); + if (ports == NULL) { + RTE_EDEV_LOG_ERR("failed to realloc port meta data," + " nb_ports %u", nb_ports); + return -(ENOMEM); + } + + /* Realloc memory for ports_dequeue_depth */ + ports_dequeue_depth = rte_realloc(ports_dequeue_depth, + sizeof(ports_dequeue_depth[0]) * nb_ports, + RTE_CACHE_LINE_SIZE); + if (ports_dequeue_depth == NULL) { + RTE_EDEV_LOG_ERR("failed to realloc port dequeue meta," + " nb_ports %u", nb_ports); + return -(ENOMEM); + } + + /* Realloc memory for ports_enqueue_depth */ + ports_enqueue_depth = rte_realloc(ports_enqueue_depth, + sizeof(ports_enqueue_depth[0]) * nb_ports, + RTE_CACHE_LINE_SIZE); + if (ports_enqueue_depth == NULL) { + RTE_EDEV_LOG_ERR("failed to realloc port enqueue meta," + " nb_ports %u", nb_ports); + return -(ENOMEM); + } + + /* Realloc memory to store queue to port link connection */ + links_map = rte_realloc(links_map, + sizeof(dev->data->links_map[0]) * nb_ports * + RTE_EVENT_MAX_QUEUES_PER_DEV, + RTE_CACHE_LINE_SIZE); + if (dev->data->links_map == NULL) { + dev->data->nb_ports = 0; + RTE_EDEV_LOG_ERR("failed to realloc mem for port_map," + "nb_ports %u", nb_ports); + return -(ENOMEM); + } + + if (nb_ports > old_nb_ports) { + uint8_t new_ps = nb_ports - old_nb_ports; + unsigned int old_links_map_end = + old_nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV; + unsigned int links_map_end = + nb_ports * RTE_EVENT_MAX_QUEUES_PER_DEV; + + memset(ports + old_nb_ports, 0, + sizeof(ports[0]) * new_ps); + memset(ports_dequeue_depth + old_nb_ports, 0, + sizeof(ports_dequeue_depth[0]) * new_ps); + memset(ports_enqueue_depth + old_nb_ports, 0, + sizeof(ports_enqueue_depth[0]) * new_ps); + for (i = old_links_map_end; i < links_map_end; i++) + links_map[i] = + EVENT_QUEUE_SERVICE_PRIORITY_INVALID; + } + + dev->data->ports = ports; + dev->data->ports_dequeue_depth = ports_dequeue_depth; + dev->data->ports_enqueue_depth = ports_enqueue_depth; + dev->data->links_map = links_map; + } else if (dev->data->ports != NULL && nb_ports == 0) { + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_release, -ENOTSUP); + + ports = dev->data->ports; + for (i = nb_ports; i < old_nb_ports; i++) + (*dev->dev_ops->port_release)(ports[i]); + } + + dev->data->nb_ports = nb_ports; + return 0; +} + +int +rte_event_dev_configure(uint8_t dev_id, + const struct rte_event_dev_config *dev_conf) +{ + struct rte_eventdev *dev; + struct rte_event_dev_info info; + int diag; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_infos_get, -ENOTSUP); + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_configure, -ENOTSUP); + + if (dev->data->dev_started) { + RTE_EDEV_LOG_ERR( + "device %d must be stopped to allow configuration", dev_id); + return -EBUSY; + } + + if (dev_conf == NULL) + return -EINVAL; + + (*dev->dev_ops->dev_infos_get)(dev, &info); + + /* Check dequeue_timeout_ns value is in limit */ + if (!(dev_conf->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT)) { + if (dev_conf->dequeue_timeout_ns < info.min_dequeue_timeout_ns + || dev_conf->dequeue_timeout_ns > + info.max_dequeue_timeout_ns) { + RTE_EDEV_LOG_ERR("dev%d invalid dequeue_timeout_ns=%d" + " min_dequeue_timeout_ns=%d max_dequeue_timeout_ns=%d", + dev_id, dev_conf->dequeue_timeout_ns, + info.min_dequeue_timeout_ns, + info.max_dequeue_timeout_ns); + return -EINVAL; + } + } + + /* Check nb_events_limit is in limit */ + if (dev_conf->nb_events_limit > info.max_num_events) { + RTE_EDEV_LOG_ERR("dev%d nb_events_limit=%d > max_num_events=%d", + dev_id, dev_conf->nb_events_limit, info.max_num_events); + return -EINVAL; + } + + /* Check nb_event_queues is in limit */ + if (!dev_conf->nb_event_queues) { + RTE_EDEV_LOG_ERR("dev%d nb_event_queues cannot be zero", + dev_id); + return -EINVAL; + } + if (dev_conf->nb_event_queues > info.max_event_queues) { + RTE_EDEV_LOG_ERR("%d nb_event_queues=%d > max_event_queues=%d", + dev_id, dev_conf->nb_event_queues, info.max_event_queues); + return -EINVAL; + } + + /* Check nb_event_ports is in limit */ + if (!dev_conf->nb_event_ports) { + RTE_EDEV_LOG_ERR("dev%d nb_event_ports cannot be zero", dev_id); + return -EINVAL; + } + if (dev_conf->nb_event_ports > info.max_event_ports) { + RTE_EDEV_LOG_ERR("id%d nb_event_ports=%d > max_event_ports= %d", + dev_id, dev_conf->nb_event_ports, info.max_event_ports); + return -EINVAL; + } + + /* Check nb_event_queue_flows is in limit */ + if (!dev_conf->nb_event_queue_flows) { + RTE_EDEV_LOG_ERR("dev%d nb_flows cannot be zero", dev_id); + return -EINVAL; + } + if (dev_conf->nb_event_queue_flows > info.max_event_queue_flows) { + RTE_EDEV_LOG_ERR("dev%d nb_flows=%x > max_flows=%x", + dev_id, dev_conf->nb_event_queue_flows, + info.max_event_queue_flows); + return -EINVAL; + } + + /* Check nb_event_port_dequeue_depth is in limit */ + if (!dev_conf->nb_event_port_dequeue_depth) { + RTE_EDEV_LOG_ERR("dev%d nb_dequeue_depth cannot be zero", + dev_id); + return -EINVAL; + } + if (dev_conf->nb_event_port_dequeue_depth > + info.max_event_port_dequeue_depth) { + RTE_EDEV_LOG_ERR("dev%d nb_dq_depth=%d > max_dq_depth=%d", + dev_id, dev_conf->nb_event_port_dequeue_depth, + info.max_event_port_dequeue_depth); + return -EINVAL; + } + + /* Check nb_event_port_enqueue_depth is in limit */ + if (!dev_conf->nb_event_port_enqueue_depth) { + RTE_EDEV_LOG_ERR("dev%d nb_enqueue_depth cannot be zero", + dev_id); + return -EINVAL; + } + if (dev_conf->nb_event_port_enqueue_depth > + info.max_event_port_enqueue_depth) { + RTE_EDEV_LOG_ERR("dev%d nb_enq_depth=%d > max_enq_depth=%d", + dev_id, dev_conf->nb_event_port_enqueue_depth, + info.max_event_port_enqueue_depth); + return -EINVAL; + } + + /* Copy the dev_conf parameter into the dev structure */ + memcpy(&dev->data->dev_conf, dev_conf, sizeof(dev->data->dev_conf)); + + /* Setup new number of queues and reconfigure device. */ + diag = rte_event_dev_queue_config(dev, dev_conf->nb_event_queues); + if (diag != 0) { + RTE_EDEV_LOG_ERR("dev%d rte_event_dev_queue_config = %d", + dev_id, diag); + return diag; + } + + /* Setup new number of ports and reconfigure device. */ + diag = rte_event_dev_port_config(dev, dev_conf->nb_event_ports); + if (diag != 0) { + rte_event_dev_queue_config(dev, 0); + RTE_EDEV_LOG_ERR("dev%d rte_event_dev_port_config = %d", + dev_id, diag); + return diag; + } + + /* Configure the device */ + diag = (*dev->dev_ops->dev_configure)(dev); + if (diag != 0) { + RTE_EDEV_LOG_ERR("dev%d dev_configure = %d", dev_id, diag); + rte_event_dev_queue_config(dev, 0); + rte_event_dev_port_config(dev, 0); + } + + dev->data->event_dev_cap = info.event_dev_cap; + return diag; +} + +static inline int +is_valid_queue(struct rte_eventdev *dev, uint8_t queue_id) +{ + if (queue_id < dev->data->nb_queues && queue_id < + RTE_EVENT_MAX_QUEUES_PER_DEV) + return 1; + else + return 0; +} + +int +rte_event_queue_default_conf_get(uint8_t dev_id, uint8_t queue_id, + struct rte_event_queue_conf *queue_conf) +{ + struct rte_eventdev *dev; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + + if (queue_conf == NULL) + return -EINVAL; + + if (!is_valid_queue(dev, queue_id)) { + RTE_EDEV_LOG_ERR("Invalid queue_id=%" PRIu8, queue_id); + return -EINVAL; + } + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_def_conf, -ENOTSUP); + memset(queue_conf, 0, sizeof(struct rte_event_queue_conf)); + (*dev->dev_ops->queue_def_conf)(dev, queue_id, queue_conf); + return 0; +} + +static inline int +is_valid_atomic_queue_conf(const struct rte_event_queue_conf *queue_conf) +{ + if (queue_conf && ( + ((queue_conf->event_queue_cfg & + RTE_EVENT_QUEUE_CFG_TYPE_MASK) + == RTE_EVENT_QUEUE_CFG_ALL_TYPES) || + ((queue_conf->event_queue_cfg & + RTE_EVENT_QUEUE_CFG_TYPE_MASK) + == RTE_EVENT_QUEUE_CFG_ATOMIC_ONLY) + )) + return 1; + else + return 0; +} + +static inline int +is_valid_ordered_queue_conf(const struct rte_event_queue_conf *queue_conf) +{ + if (queue_conf && ( + ((queue_conf->event_queue_cfg & + RTE_EVENT_QUEUE_CFG_TYPE_MASK) + == RTE_EVENT_QUEUE_CFG_ALL_TYPES) || + ((queue_conf->event_queue_cfg & + RTE_EVENT_QUEUE_CFG_TYPE_MASK) + == RTE_EVENT_QUEUE_CFG_ORDERED_ONLY) + )) + return 1; + else + return 0; +} + + +int +rte_event_queue_setup(uint8_t dev_id, uint8_t queue_id, + const struct rte_event_queue_conf *queue_conf) +{ + struct rte_eventdev *dev; + struct rte_event_queue_conf def_conf; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + + if (!is_valid_queue(dev, queue_id)) { + RTE_EDEV_LOG_ERR("Invalid queue_id=%" PRIu8, queue_id); + return -EINVAL; + } + + /* Check nb_atomic_flows limit */ + if (is_valid_atomic_queue_conf(queue_conf)) { + if (queue_conf->nb_atomic_flows == 0 || + queue_conf->nb_atomic_flows > + dev->data->dev_conf.nb_event_queue_flows) { + RTE_EDEV_LOG_ERR( + "dev%d queue%d Invalid nb_atomic_flows=%d max_flows=%d", + dev_id, queue_id, queue_conf->nb_atomic_flows, + dev->data->dev_conf.nb_event_queue_flows); + return -EINVAL; + } + } + + /* Check nb_atomic_order_sequences limit */ + if (is_valid_ordered_queue_conf(queue_conf)) { + if (queue_conf->nb_atomic_order_sequences == 0 || + queue_conf->nb_atomic_order_sequences > + dev->data->dev_conf.nb_event_queue_flows) { + RTE_EDEV_LOG_ERR( + "dev%d queue%d Invalid nb_atomic_order_seq=%d max_flows=%d", + dev_id, queue_id, queue_conf->nb_atomic_order_sequences, + dev->data->dev_conf.nb_event_queue_flows); + return -EINVAL; + } + } + + if (dev->data->dev_started) { + RTE_EDEV_LOG_ERR( + "device %d must be stopped to allow queue setup", dev_id); + return -EBUSY; + } + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_setup, -ENOTSUP); + + if (queue_conf == NULL) { + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->queue_def_conf, + -ENOTSUP); + (*dev->dev_ops->queue_def_conf)(dev, queue_id, &def_conf); + queue_conf = &def_conf; + } + + dev->data->queues_prio[queue_id] = queue_conf->priority; + return (*dev->dev_ops->queue_setup)(dev, queue_id, queue_conf); +} + +uint8_t +rte_event_queue_count(uint8_t dev_id) +{ + struct rte_eventdev *dev; + + dev = &rte_eventdevs[dev_id]; + return dev->data->nb_queues; +} + +uint8_t +rte_event_queue_priority(uint8_t dev_id, uint8_t queue_id) +{ + struct rte_eventdev *dev; + + dev = &rte_eventdevs[dev_id]; + if (dev->data->event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_QOS) + return dev->data->queues_prio[queue_id]; + else + return RTE_EVENT_DEV_PRIORITY_NORMAL; +} + +static inline int +is_valid_port(struct rte_eventdev *dev, uint8_t port_id) +{ + if (port_id < dev->data->nb_ports) + return 1; + else + return 0; +} + +int +rte_event_port_default_conf_get(uint8_t dev_id, uint8_t port_id, + struct rte_event_port_conf *port_conf) +{ + struct rte_eventdev *dev; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + + if (port_conf == NULL) + return -EINVAL; + + if (!is_valid_port(dev, port_id)) { + RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id); + return -EINVAL; + } + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_def_conf, -ENOTSUP); + memset(port_conf, 0, sizeof(struct rte_event_port_conf)); + (*dev->dev_ops->port_def_conf)(dev, port_id, port_conf); + return 0; +} + +int +rte_event_port_setup(uint8_t dev_id, uint8_t port_id, + const struct rte_event_port_conf *port_conf) +{ + struct rte_eventdev *dev; + struct rte_event_port_conf def_conf; + int diag; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + + if (!is_valid_port(dev, port_id)) { + RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id); + return -EINVAL; + } + + /* Check new_event_threshold limit */ + if ((port_conf && !port_conf->new_event_threshold) || + (port_conf && port_conf->new_event_threshold > + dev->data->dev_conf.nb_events_limit)) { + RTE_EDEV_LOG_ERR( + "dev%d port%d Invalid event_threshold=%d nb_events_limit=%d", + dev_id, port_id, port_conf->new_event_threshold, + dev->data->dev_conf.nb_events_limit); + return -EINVAL; + } + + /* Check dequeue_depth limit */ + if ((port_conf && !port_conf->dequeue_depth) || + (port_conf && port_conf->dequeue_depth > + dev->data->dev_conf.nb_event_port_dequeue_depth)) { + RTE_EDEV_LOG_ERR( + "dev%d port%d Invalid dequeue depth=%d max_dequeue_depth=%d", + dev_id, port_id, port_conf->dequeue_depth, + dev->data->dev_conf.nb_event_port_dequeue_depth); + return -EINVAL; + } + + /* Check enqueue_depth limit */ + if ((port_conf && !port_conf->enqueue_depth) || + (port_conf && port_conf->enqueue_depth > + dev->data->dev_conf.nb_event_port_enqueue_depth)) { + RTE_EDEV_LOG_ERR( + "dev%d port%d Invalid enqueue depth=%d max_enqueue_depth=%d", + dev_id, port_id, port_conf->enqueue_depth, + dev->data->dev_conf.nb_event_port_enqueue_depth); + return -EINVAL; + } + + if (dev->data->dev_started) { + RTE_EDEV_LOG_ERR( + "device %d must be stopped to allow port setup", dev_id); + return -EBUSY; + } + + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_setup, -ENOTSUP); + + if (port_conf == NULL) { + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_def_conf, + -ENOTSUP); + (*dev->dev_ops->port_def_conf)(dev, port_id, &def_conf); + port_conf = &def_conf; + } + + dev->data->ports_dequeue_depth[port_id] = + port_conf->dequeue_depth; + dev->data->ports_enqueue_depth[port_id] = + port_conf->enqueue_depth; + + diag = (*dev->dev_ops->port_setup)(dev, port_id, port_conf); + + /* Unlink all the queues from this port(default state after setup) */ + if (!diag) + diag = rte_event_port_unlink(dev_id, port_id, NULL, 0); + + if (diag < 0) + return diag; + + return 0; +} + +uint8_t +rte_event_port_dequeue_depth(uint8_t dev_id, uint8_t port_id) +{ + struct rte_eventdev *dev; + + dev = &rte_eventdevs[dev_id]; + return dev->data->ports_dequeue_depth[port_id]; +} + +uint8_t +rte_event_port_enqueue_depth(uint8_t dev_id, uint8_t port_id) +{ + struct rte_eventdev *dev; + + dev = &rte_eventdevs[dev_id]; + return dev->data->ports_enqueue_depth[port_id]; +} + +uint8_t +rte_event_port_count(uint8_t dev_id) +{ + struct rte_eventdev *dev; + + dev = &rte_eventdevs[dev_id]; + return dev->data->nb_ports; +} + +int +rte_event_port_link(uint8_t dev_id, uint8_t port_id, + const uint8_t queues[], const uint8_t priorities[], + uint16_t nb_links) +{ + struct rte_eventdev *dev; + uint8_t queues_list[RTE_EVENT_MAX_QUEUES_PER_DEV]; + uint8_t priorities_list[RTE_EVENT_MAX_QUEUES_PER_DEV]; + uint16_t *links_map; + int i, diag; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_link, -ENOTSUP); + + if (!is_valid_port(dev, port_id)) { + RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id); + return -EINVAL; + } + + if (queues == NULL) { + for (i = 0; i < dev->data->nb_queues; i++) + queues_list[i] = i; + + queues = queues_list; + nb_links = dev->data->nb_queues; + } + + if (priorities == NULL) { + for (i = 0; i < nb_links; i++) + priorities_list[i] = RTE_EVENT_DEV_PRIORITY_NORMAL; + + priorities = priorities_list; + } + + for (i = 0; i < nb_links; i++) + if (queues[i] >= dev->data->nb_queues) + return -EINVAL; + + diag = (*dev->dev_ops->port_link)(dev, dev->data->ports[port_id], + queues, priorities, nb_links); + if (diag < 0) + return diag; + + links_map = dev->data->links_map; + /* Point links_map to this port specific area */ + links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV); + for (i = 0; i < diag; i++) + links_map[queues[i]] = (uint8_t)priorities[i]; + + return diag; +} + +int +rte_event_port_unlink(uint8_t dev_id, uint8_t port_id, + uint8_t queues[], uint16_t nb_unlinks) +{ + struct rte_eventdev *dev; + uint8_t all_queues[RTE_EVENT_MAX_QUEUES_PER_DEV]; + int i, diag; + uint16_t *links_map; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->port_unlink, -ENOTSUP); + + if (!is_valid_port(dev, port_id)) { + RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id); + return -EINVAL; + } + + if (queues == NULL) { + for (i = 0; i < dev->data->nb_queues; i++) + all_queues[i] = i; + queues = all_queues; + nb_unlinks = dev->data->nb_queues; + } + + for (i = 0; i < nb_unlinks; i++) + if (queues[i] >= dev->data->nb_queues) + return -EINVAL; + + diag = (*dev->dev_ops->port_unlink)(dev, dev->data->ports[port_id], + queues, nb_unlinks); + + if (diag < 0) + return diag; + + links_map = dev->data->links_map; + /* Point links_map to this port specific area */ + links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV); + for (i = 0; i < diag; i++) + links_map[queues[i]] = EVENT_QUEUE_SERVICE_PRIORITY_INVALID; + + return diag; +} + +int +rte_event_port_links_get(uint8_t dev_id, uint8_t port_id, + uint8_t queues[], uint8_t priorities[]) +{ + struct rte_eventdev *dev; + uint16_t *links_map; + int i, count = 0; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + if (!is_valid_port(dev, port_id)) { + RTE_EDEV_LOG_ERR("Invalid port_id=%" PRIu8, port_id); + return -EINVAL; + } + + links_map = dev->data->links_map; + /* Point links_map to this port specific area */ + links_map += (port_id * RTE_EVENT_MAX_QUEUES_PER_DEV); + for (i = 0; i < dev->data->nb_queues; i++) { + if (links_map[i] != EVENT_QUEUE_SERVICE_PRIORITY_INVALID) { + queues[count] = i; + priorities[count] = (uint8_t)links_map[i]; + ++count; + } + } + return count; +} + +int +rte_event_dequeue_timeout_ticks(uint8_t dev_id, uint64_t ns, + uint64_t *timeout_ticks) +{ + struct rte_eventdev *dev; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->timeout_ticks, -ENOTSUP); + + if (timeout_ticks == NULL) + return -EINVAL; + + return (*dev->dev_ops->timeout_ticks)(dev, ns, timeout_ticks); +} + +int +rte_event_dev_dump(uint8_t dev_id, FILE *f) +{ + struct rte_eventdev *dev; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dump, -ENOTSUP); + + (*dev->dev_ops->dump)(dev, f); + return 0; + +} + +static int +xstats_get_count(uint8_t dev_id, enum rte_event_dev_xstats_mode mode, + uint8_t queue_port_id) +{ + struct rte_eventdev *dev = &rte_eventdevs[dev_id]; + if (dev->dev_ops->xstats_get_names != NULL) + return (*dev->dev_ops->xstats_get_names)(dev, mode, + queue_port_id, + NULL, NULL, 0); + return 0; +} + +int +rte_event_dev_xstats_names_get(uint8_t dev_id, + enum rte_event_dev_xstats_mode mode, uint8_t queue_port_id, + struct rte_event_dev_xstats_name *xstats_names, + unsigned int *ids, unsigned int size) +{ + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -ENODEV); + const int cnt_expected_entries = xstats_get_count(dev_id, mode, + queue_port_id); + if (xstats_names == NULL || cnt_expected_entries < 0 || + (int)size < cnt_expected_entries) + return cnt_expected_entries; + + /* dev_id checked above */ + const struct rte_eventdev *dev = &rte_eventdevs[dev_id]; + + if (dev->dev_ops->xstats_get_names != NULL) + return (*dev->dev_ops->xstats_get_names)(dev, mode, + queue_port_id, xstats_names, ids, size); + + return -ENOTSUP; +} + +/* retrieve eventdev extended statistics */ +int +rte_event_dev_xstats_get(uint8_t dev_id, enum rte_event_dev_xstats_mode mode, + uint8_t queue_port_id, const unsigned int ids[], + uint64_t values[], unsigned int n) +{ + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -ENODEV); + const struct rte_eventdev *dev = &rte_eventdevs[dev_id]; + + /* implemented by the driver */ + if (dev->dev_ops->xstats_get != NULL) + return (*dev->dev_ops->xstats_get)(dev, mode, queue_port_id, + ids, values, n); + return -ENOTSUP; +} + +uint64_t +rte_event_dev_xstats_by_name_get(uint8_t dev_id, const char *name, + unsigned int *id) +{ + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, 0); + const struct rte_eventdev *dev = &rte_eventdevs[dev_id]; + unsigned int temp = -1; + + if (id != NULL) + *id = (unsigned int)-1; + else + id = &temp; /* ensure driver never gets a NULL value */ + + /* implemented by driver */ + if (dev->dev_ops->xstats_get_by_name != NULL) + return (*dev->dev_ops->xstats_get_by_name)(dev, name, id); + return -ENOTSUP; +} + +int rte_event_dev_xstats_reset(uint8_t dev_id, + enum rte_event_dev_xstats_mode mode, int16_t queue_port_id, + const uint32_t ids[], uint32_t nb_ids) +{ + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + struct rte_eventdev *dev = &rte_eventdevs[dev_id]; + + if (dev->dev_ops->xstats_reset != NULL) + return (*dev->dev_ops->xstats_reset)(dev, mode, queue_port_id, + ids, nb_ids); + return -ENOTSUP; +} + +int +rte_event_dev_start(uint8_t dev_id) +{ + struct rte_eventdev *dev; + int diag; + + RTE_EDEV_LOG_DEBUG("Start dev_id=%" PRIu8, dev_id); + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_start, -ENOTSUP); + + if (dev->data->dev_started != 0) { + RTE_EDEV_LOG_ERR("Device with dev_id=%" PRIu8 "already started", + dev_id); + return 0; + } + + diag = (*dev->dev_ops->dev_start)(dev); + if (diag == 0) + dev->data->dev_started = 1; + else + return diag; + + return 0; +} + +void +rte_event_dev_stop(uint8_t dev_id) +{ + struct rte_eventdev *dev; + + RTE_EDEV_LOG_DEBUG("Stop dev_id=%" PRIu8, dev_id); + + RTE_EVENTDEV_VALID_DEVID_OR_RET(dev_id); + dev = &rte_eventdevs[dev_id]; + RTE_FUNC_PTR_OR_RET(*dev->dev_ops->dev_stop); + + if (dev->data->dev_started == 0) { + RTE_EDEV_LOG_ERR("Device with dev_id=%" PRIu8 "already stopped", + dev_id); + return; + } + + dev->data->dev_started = 0; + (*dev->dev_ops->dev_stop)(dev); +} + +int +rte_event_dev_close(uint8_t dev_id) +{ + struct rte_eventdev *dev; + + RTE_EVENTDEV_VALID_DEVID_OR_ERR_RET(dev_id, -EINVAL); + dev = &rte_eventdevs[dev_id]; + RTE_FUNC_PTR_OR_ERR_RET(*dev->dev_ops->dev_close, -ENOTSUP); + + /* Device must be stopped before it can be closed */ + if (dev->data->dev_started == 1) { + RTE_EDEV_LOG_ERR("Device %u must be stopped before closing", + dev_id); + return -EBUSY; + } + + return (*dev->dev_ops->dev_close)(dev); +} + +static inline int +rte_eventdev_data_alloc(uint8_t dev_id, struct rte_eventdev_data **data, + int socket_id) +{ + char mz_name[RTE_EVENTDEV_NAME_MAX_LEN]; + const struct rte_memzone *mz; + int n; + + /* Generate memzone name */ + n = snprintf(mz_name, sizeof(mz_name), "rte_eventdev_data_%u", dev_id); + if (n >= (int)sizeof(mz_name)) + return -EINVAL; + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + mz = rte_memzone_reserve(mz_name, + sizeof(struct rte_eventdev_data), + socket_id, 0); + } else + mz = rte_memzone_lookup(mz_name); + + if (mz == NULL) + return -ENOMEM; + + *data = mz->addr; + if (rte_eal_process_type() == RTE_PROC_PRIMARY) + memset(*data, 0, sizeof(struct rte_eventdev_data)); + + return 0; +} + +static inline uint8_t +rte_eventdev_find_free_device_index(void) +{ + uint8_t dev_id; + + for (dev_id = 0; dev_id < RTE_EVENT_MAX_DEVS; dev_id++) { + if (rte_eventdevs[dev_id].attached == + RTE_EVENTDEV_DETACHED) + return dev_id; + } + return RTE_EVENT_MAX_DEVS; +} + +struct rte_eventdev * +rte_event_pmd_allocate(const char *name, int socket_id) +{ + struct rte_eventdev *eventdev; + uint8_t dev_id; + + if (rte_event_pmd_get_named_dev(name) != NULL) { + RTE_EDEV_LOG_ERR("Event device with name %s already " + "allocated!", name); + return NULL; + } + + dev_id = rte_eventdev_find_free_device_index(); + if (dev_id == RTE_EVENT_MAX_DEVS) { + RTE_EDEV_LOG_ERR("Reached maximum number of event devices"); + return NULL; + } + + eventdev = &rte_eventdevs[dev_id]; + + if (eventdev->data == NULL) { + struct rte_eventdev_data *eventdev_data = NULL; + + int retval = rte_eventdev_data_alloc(dev_id, &eventdev_data, + socket_id); + + if (retval < 0 || eventdev_data == NULL) + return NULL; + + eventdev->data = eventdev_data; + + snprintf(eventdev->data->name, RTE_EVENTDEV_NAME_MAX_LEN, + "%s", name); + + eventdev->data->dev_id = dev_id; + eventdev->data->socket_id = socket_id; + eventdev->data->dev_started = 0; + + eventdev->attached = RTE_EVENTDEV_ATTACHED; + + eventdev_globals.nb_devs++; + } + + return eventdev; +} + +int +rte_event_pmd_release(struct rte_eventdev *eventdev) +{ + int ret; + char mz_name[RTE_EVENTDEV_NAME_MAX_LEN]; + const struct rte_memzone *mz; + + if (eventdev == NULL) + return -EINVAL; + + ret = rte_event_dev_close(eventdev->data->dev_id); + if (ret < 0) + return ret; + + eventdev->attached = RTE_EVENTDEV_DETACHED; + eventdev_globals.nb_devs--; + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + rte_free(eventdev->data->dev_private); + + /* Generate memzone name */ + ret = snprintf(mz_name, sizeof(mz_name), "rte_eventdev_data_%u", + eventdev->data->dev_id); + if (ret >= (int)sizeof(mz_name)) + return -EINVAL; + + mz = rte_memzone_lookup(mz_name); + if (mz == NULL) + return -ENOMEM; + + ret = rte_memzone_free(mz); + if (ret) + return ret; + } + + eventdev->data = NULL; + return 0; +} + +struct rte_eventdev * +rte_event_pmd_vdev_init(const char *name, size_t dev_private_size, + int socket_id) +{ + struct rte_eventdev *eventdev; + + /* Allocate device structure */ + eventdev = rte_event_pmd_allocate(name, socket_id); + if (eventdev == NULL) + return NULL; + + /* Allocate private device structure */ + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + eventdev->data->dev_private = + rte_zmalloc_socket("eventdev device private", + dev_private_size, + RTE_CACHE_LINE_SIZE, + socket_id); + + if (eventdev->data->dev_private == NULL) + rte_panic("Cannot allocate memzone for private device" + " data"); + } + + return eventdev; +} + +int +rte_event_pmd_vdev_uninit(const char *name) +{ + struct rte_eventdev *eventdev; + + if (name == NULL) + return -EINVAL; + + eventdev = rte_event_pmd_get_named_dev(name); + if (eventdev == NULL) + return -ENODEV; + + /* Free the event device */ + rte_event_pmd_release(eventdev); + + return 0; +} + +int +rte_event_pmd_pci_probe(struct rte_pci_driver *pci_drv, + struct rte_pci_device *pci_dev) +{ + struct rte_eventdev_driver *eventdrv; + struct rte_eventdev *eventdev; + + char eventdev_name[RTE_EVENTDEV_NAME_MAX_LEN]; + + int retval; + + eventdrv = (struct rte_eventdev_driver *)pci_drv; + if (eventdrv == NULL) + return -ENODEV; + + rte_pci_device_name(&pci_dev->addr, eventdev_name, + sizeof(eventdev_name)); + + eventdev = rte_event_pmd_allocate(eventdev_name, + pci_dev->device.numa_node); + if (eventdev == NULL) + return -ENOMEM; + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) { + eventdev->data->dev_private = + rte_zmalloc_socket( + "eventdev private structure", + eventdrv->dev_private_size, + RTE_CACHE_LINE_SIZE, + rte_socket_id()); + + if (eventdev->data->dev_private == NULL) + rte_panic("Cannot allocate memzone for private " + "device data"); + } + + eventdev->dev = &pci_dev->device; + eventdev->driver = eventdrv; + + /* Invoke PMD device initialization function */ + retval = (*eventdrv->eventdev_init)(eventdev); + if (retval == 0) + return 0; + + RTE_EDEV_LOG_ERR("driver %s: (vendor_id=0x%x device_id=0x%x)" + " failed", pci_drv->driver.name, + (unsigned int) pci_dev->id.vendor_id, + (unsigned int) pci_dev->id.device_id); + + if (rte_eal_process_type() == RTE_PROC_PRIMARY) + rte_free(eventdev->data->dev_private); + + eventdev->attached = RTE_EVENTDEV_DETACHED; + eventdev_globals.nb_devs--; + + return -ENXIO; +} + +int +rte_event_pmd_pci_remove(struct rte_pci_device *pci_dev) +{ + const struct rte_eventdev_driver *eventdrv; + struct rte_eventdev *eventdev; + char eventdev_name[RTE_EVENTDEV_NAME_MAX_LEN]; + int ret; + + if (pci_dev == NULL) + return -EINVAL; + + rte_pci_device_name(&pci_dev->addr, eventdev_name, + sizeof(eventdev_name)); + + eventdev = rte_event_pmd_get_named_dev(eventdev_name); + if (eventdev == NULL) + return -ENODEV; + + eventdrv = (const struct rte_eventdev_driver *)pci_dev->driver; + if (eventdrv == NULL) + return -ENODEV; + + /* Invoke PMD device un-init function */ + if (*eventdrv->eventdev_uninit) { + ret = (*eventdrv->eventdev_uninit)(eventdev); + if (ret) + return ret; + } + + /* Free event device */ + rte_event_pmd_release(eventdev); + + eventdev->dev = NULL; + eventdev->driver = NULL; + + return 0; +} |