--- /dev/null
+/*
+ * BSD LICENSE
+ *
+ * Copyright (C) Cavium networks Ltd. 2016.
+ *
+ * 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 <assert.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <rte_byteorder.h>
+#include <rte_common.h>
+#include <rte_debug.h>
+#include <rte_dev.h>
+#include <rte_eal.h>
+#include <rte_log.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_malloc.h>
+#include <rte_pci.h>
+#include <rte_lcore.h>
+#include <rte_vdev.h>
+
+#include "skeleton_eventdev.h"
+
+#define EVENTDEV_NAME_SKELETON_PMD event_skeleton
+/**< Skeleton event device PMD name */
+
+static uint16_t
+skeleton_eventdev_enqueue(void *port, const struct rte_event *ev)
+{
+ struct skeleton_port *sp = port;
+
+ RTE_SET_USED(sp);
+ RTE_SET_USED(ev);
+ RTE_SET_USED(port);
+
+ return 0;
+}
+
+static uint16_t
+skeleton_eventdev_enqueue_burst(void *port, const struct rte_event ev[],
+ uint16_t nb_events)
+{
+ struct skeleton_port *sp = port;
+
+ RTE_SET_USED(sp);
+ RTE_SET_USED(ev);
+ RTE_SET_USED(port);
+ RTE_SET_USED(nb_events);
+
+ return 0;
+}
+
+static uint16_t
+skeleton_eventdev_dequeue(void *port, struct rte_event *ev,
+ uint64_t timeout_ticks)
+{
+ struct skeleton_port *sp = port;
+
+ RTE_SET_USED(sp);
+ RTE_SET_USED(ev);
+ RTE_SET_USED(timeout_ticks);
+
+ return 0;
+}
+
+static uint16_t
+skeleton_eventdev_dequeue_burst(void *port, struct rte_event ev[],
+ uint16_t nb_events, uint64_t timeout_ticks)
+{
+ struct skeleton_port *sp = port;
+
+ RTE_SET_USED(sp);
+ RTE_SET_USED(ev);
+ RTE_SET_USED(nb_events);
+ RTE_SET_USED(timeout_ticks);
+
+ return 0;
+}
+
+static void
+skeleton_eventdev_info_get(struct rte_eventdev *dev,
+ struct rte_event_dev_info *dev_info)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+
+ dev_info->min_dequeue_timeout_ns = 1;
+ dev_info->max_dequeue_timeout_ns = 10000;
+ dev_info->dequeue_timeout_ns = 25;
+ dev_info->max_event_queues = 64;
+ dev_info->max_event_queue_flows = (1ULL << 20);
+ dev_info->max_event_queue_priority_levels = 8;
+ dev_info->max_event_priority_levels = 8;
+ dev_info->max_event_ports = 32;
+ dev_info->max_event_port_dequeue_depth = 16;
+ dev_info->max_event_port_enqueue_depth = 16;
+ dev_info->max_num_events = (1ULL << 20);
+ dev_info->event_dev_cap = RTE_EVENT_DEV_CAP_QUEUE_QOS |
+ RTE_EVENT_DEV_CAP_EVENT_QOS;
+}
+
+static int
+skeleton_eventdev_configure(const struct rte_eventdev *dev)
+{
+ struct rte_eventdev_data *data = dev->data;
+ struct rte_event_dev_config *conf = &data->dev_conf;
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(conf);
+ RTE_SET_USED(skel);
+
+ PMD_DRV_LOG(DEBUG, "Configured eventdev devid=%d", dev->data->dev_id);
+ return 0;
+}
+
+static int
+skeleton_eventdev_start(struct rte_eventdev *dev)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+
+ return 0;
+}
+
+static void
+skeleton_eventdev_stop(struct rte_eventdev *dev)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+}
+
+static int
+skeleton_eventdev_close(struct rte_eventdev *dev)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+
+ return 0;
+}
+
+static void
+skeleton_eventdev_queue_def_conf(struct rte_eventdev *dev, uint8_t queue_id,
+ struct rte_event_queue_conf *queue_conf)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+ RTE_SET_USED(queue_id);
+
+ queue_conf->nb_atomic_flows = (1ULL << 20);
+ queue_conf->nb_atomic_order_sequences = (1ULL << 20);
+ queue_conf->event_queue_cfg = RTE_EVENT_QUEUE_CFG_ALL_TYPES;
+ queue_conf->priority = RTE_EVENT_DEV_PRIORITY_NORMAL;
+}
+
+static void
+skeleton_eventdev_queue_release(struct rte_eventdev *dev, uint8_t queue_id)
+{
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(dev);
+ RTE_SET_USED(queue_id);
+}
+
+static int
+skeleton_eventdev_queue_setup(struct rte_eventdev *dev, uint8_t queue_id,
+ const struct rte_event_queue_conf *queue_conf)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+ RTE_SET_USED(queue_conf);
+ RTE_SET_USED(queue_id);
+
+ return 0;
+}
+
+static void
+skeleton_eventdev_port_def_conf(struct rte_eventdev *dev, uint8_t port_id,
+ struct rte_event_port_conf *port_conf)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+ RTE_SET_USED(port_id);
+
+ port_conf->new_event_threshold = 32 * 1024;
+ port_conf->dequeue_depth = 16;
+ port_conf->enqueue_depth = 16;
+}
+
+static void
+skeleton_eventdev_port_release(void *port)
+{
+ struct skeleton_port *sp = port;
+ PMD_DRV_FUNC_TRACE();
+
+ rte_free(sp);
+}
+
+static int
+skeleton_eventdev_port_setup(struct rte_eventdev *dev, uint8_t port_id,
+ const struct rte_event_port_conf *port_conf)
+{
+ struct skeleton_port *sp;
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+ RTE_SET_USED(port_conf);
+
+ /* Free memory prior to re-allocation if needed */
+ if (dev->data->ports[port_id] != NULL) {
+ PMD_DRV_LOG(DEBUG, "Freeing memory prior to re-allocation %d",
+ port_id);
+ skeleton_eventdev_port_release(dev->data->ports[port_id]);
+ dev->data->ports[port_id] = NULL;
+ }
+
+ /* Allocate event port memory */
+ sp = rte_zmalloc_socket("eventdev port",
+ sizeof(struct skeleton_port), RTE_CACHE_LINE_SIZE,
+ dev->data->socket_id);
+ if (sp == NULL) {
+ PMD_DRV_ERR("Failed to allocate sp port_id=%d", port_id);
+ return -ENOMEM;
+ }
+
+ sp->port_id = port_id;
+
+ PMD_DRV_LOG(DEBUG, "[%d] sp=%p", port_id, sp);
+
+ dev->data->ports[port_id] = sp;
+ return 0;
+}
+
+static int
+skeleton_eventdev_port_link(struct rte_eventdev *dev, void *port,
+ const uint8_t queues[], const uint8_t priorities[],
+ uint16_t nb_links)
+{
+ struct skeleton_port *sp = port;
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(dev);
+ RTE_SET_USED(sp);
+ RTE_SET_USED(queues);
+ RTE_SET_USED(priorities);
+
+ /* Linked all the queues */
+ return (int)nb_links;
+}
+
+static int
+skeleton_eventdev_port_unlink(struct rte_eventdev *dev, void *port,
+ uint8_t queues[], uint16_t nb_unlinks)
+{
+ struct skeleton_port *sp = port;
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(dev);
+ RTE_SET_USED(sp);
+ RTE_SET_USED(queues);
+
+ /* Unlinked all the queues */
+ return (int)nb_unlinks;
+
+}
+
+static int
+skeleton_eventdev_timeout_ticks(struct rte_eventdev *dev, uint64_t ns,
+ uint64_t *timeout_ticks)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+ uint32_t scale = 1;
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+ *timeout_ticks = ns * scale;
+
+ return 0;
+}
+
+static void
+skeleton_eventdev_dump(struct rte_eventdev *dev, FILE *f)
+{
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(dev);
+
+ PMD_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(skel);
+ RTE_SET_USED(f);
+}
+
+
+/* Initialize and register event driver with DPDK Application */
+static const struct rte_eventdev_ops skeleton_eventdev_ops = {
+ .dev_infos_get = skeleton_eventdev_info_get,
+ .dev_configure = skeleton_eventdev_configure,
+ .dev_start = skeleton_eventdev_start,
+ .dev_stop = skeleton_eventdev_stop,
+ .dev_close = skeleton_eventdev_close,
+ .queue_def_conf = skeleton_eventdev_queue_def_conf,
+ .queue_setup = skeleton_eventdev_queue_setup,
+ .queue_release = skeleton_eventdev_queue_release,
+ .port_def_conf = skeleton_eventdev_port_def_conf,
+ .port_setup = skeleton_eventdev_port_setup,
+ .port_release = skeleton_eventdev_port_release,
+ .port_link = skeleton_eventdev_port_link,
+ .port_unlink = skeleton_eventdev_port_unlink,
+ .timeout_ticks = skeleton_eventdev_timeout_ticks,
+ .dump = skeleton_eventdev_dump
+};
+
+static int
+skeleton_eventdev_init(struct rte_eventdev *eventdev)
+{
+ struct rte_pci_device *pci_dev;
+ struct skeleton_eventdev *skel = skeleton_pmd_priv(eventdev);
+ int ret = 0;
+
+ PMD_DRV_FUNC_TRACE();
+
+ eventdev->dev_ops = &skeleton_eventdev_ops;
+ eventdev->schedule = NULL;
+ eventdev->enqueue = skeleton_eventdev_enqueue;
+ eventdev->enqueue_burst = skeleton_eventdev_enqueue_burst;
+ eventdev->dequeue = skeleton_eventdev_dequeue;
+ eventdev->dequeue_burst = skeleton_eventdev_dequeue_burst;
+
+ /* For secondary processes, the primary has done all the work */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ pci_dev = RTE_DEV_TO_PCI(eventdev->dev);
+
+ skel->reg_base = (uintptr_t)pci_dev->mem_resource[0].addr;
+ if (!skel->reg_base) {
+ PMD_DRV_ERR("Failed to map BAR0");
+ ret = -ENODEV;
+ goto fail;
+ }
+
+ skel->device_id = pci_dev->id.device_id;
+ skel->vendor_id = pci_dev->id.vendor_id;
+ skel->subsystem_device_id = pci_dev->id.subsystem_device_id;
+ skel->subsystem_vendor_id = pci_dev->id.subsystem_vendor_id;
+
+ PMD_DRV_LOG(DEBUG, "pci device (%x:%x) %u:%u:%u:%u",
+ pci_dev->id.vendor_id, pci_dev->id.device_id,
+ pci_dev->addr.domain, pci_dev->addr.bus,
+ pci_dev->addr.devid, pci_dev->addr.function);
+
+ PMD_DRV_LOG(INFO, "dev_id=%d socket_id=%d (%x:%x)",
+ eventdev->data->dev_id, eventdev->data->socket_id,
+ skel->vendor_id, skel->device_id);
+
+fail:
+ return ret;
+}
+
+/* PCI based event device */
+
+#define EVENTDEV_SKEL_VENDOR_ID 0x177d
+#define EVENTDEV_SKEL_PRODUCT_ID 0x0001
+
+static const struct rte_pci_id pci_id_skeleton_map[] = {
+ {
+ RTE_PCI_DEVICE(EVENTDEV_SKEL_VENDOR_ID,
+ EVENTDEV_SKEL_PRODUCT_ID)
+ },
+ {
+ .vendor_id = 0,
+ },
+};
+
+static struct rte_eventdev_driver pci_eventdev_skeleton_pmd = {
+ .pci_drv = {
+ .id_table = pci_id_skeleton_map,
+ .drv_flags = RTE_PCI_DRV_NEED_MAPPING,
+ .probe = rte_event_pmd_pci_probe,
+ .remove = rte_event_pmd_pci_remove,
+ },
+ .eventdev_init = skeleton_eventdev_init,
+ .dev_private_size = sizeof(struct skeleton_eventdev),
+};
+
+RTE_PMD_REGISTER_PCI(event_skeleton_pci, pci_eventdev_skeleton_pmd.pci_drv);
+RTE_PMD_REGISTER_PCI_TABLE(event_skeleton_pci, pci_id_skeleton_map);
+
+/* VDEV based event device */
+
+static int
+skeleton_eventdev_create(const char *name, int socket_id)
+{
+ struct rte_eventdev *eventdev;
+
+ eventdev = rte_event_pmd_vdev_init(name,
+ sizeof(struct skeleton_eventdev), socket_id);
+ if (eventdev == NULL) {
+ PMD_DRV_ERR("Failed to create eventdev vdev %s", name);
+ goto fail;
+ }
+
+ eventdev->dev_ops = &skeleton_eventdev_ops;
+ eventdev->schedule = NULL;
+ eventdev->enqueue = skeleton_eventdev_enqueue;
+ eventdev->enqueue_burst = skeleton_eventdev_enqueue_burst;
+ eventdev->dequeue = skeleton_eventdev_dequeue;
+ eventdev->dequeue_burst = skeleton_eventdev_dequeue_burst;
+
+ return 0;
+fail:
+ return -EFAULT;
+}
+
+static int
+skeleton_eventdev_probe(struct rte_vdev_device *vdev)
+{
+ const char *name;
+
+ name = rte_vdev_device_name(vdev);
+ RTE_LOG(INFO, PMD, "Initializing %s on NUMA node %d\n", name,
+ rte_socket_id());
+ return skeleton_eventdev_create(name, rte_socket_id());
+}
+
+static int
+skeleton_eventdev_remove(struct rte_vdev_device *vdev)
+{
+ const char *name;
+
+ name = rte_vdev_device_name(vdev);
+ PMD_DRV_LOG(INFO, "Closing %s on NUMA node %d", name, rte_socket_id());
+
+ return rte_event_pmd_vdev_uninit(name);
+}
+
+static struct rte_vdev_driver vdev_eventdev_skeleton_pmd = {
+ .probe = skeleton_eventdev_probe,
+ .remove = skeleton_eventdev_remove
+};
+
+RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_SKELETON_PMD, vdev_eventdev_skeleton_pmd);
Code Review / deb_dpdk.git / blobdiff