--- /dev/null
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2017 NXP
+ */
+
+#include <assert.h>
+#include <stdio.h>
+#include <stdbool.h>
+#include <errno.h>
+#include <stdint.h>
+#include <string.h>
+#include <sys/epoll.h>
+
+#include <rte_atomic.h>
+#include <rte_byteorder.h>
+#include <rte_common.h>
+#include <rte_debug.h>
+#include <rte_dev.h>
+#include <rte_eal.h>
+#include <rte_lcore.h>
+#include <rte_log.h>
+#include <rte_malloc.h>
+#include <rte_memcpy.h>
+#include <rte_memory.h>
+#include <rte_memzone.h>
+#include <rte_pci.h>
+#include <rte_eventdev.h>
+#include <rte_eventdev_pmd_vdev.h>
+#include <rte_ethdev.h>
+#include <rte_event_eth_rx_adapter.h>
+#include <rte_dpaa_bus.h>
+#include <rte_dpaa_logs.h>
+#include <rte_cycles_64.h>
+
+#include <dpaa_ethdev.h>
+#include "dpaa_eventdev.h"
+#include <dpaa_mempool.h>
+
+/*
+ * Clarifications
+ * Evendev = Virtual Instance for SoC
+ * Eventport = Portal Instance
+ * Eventqueue = Channel Instance
+ * 1 Eventdev can have N Eventqueue
+ */
+
+static int
+dpaa_event_dequeue_timeout_ticks(struct rte_eventdev *dev, uint64_t ns,
+ uint64_t *timeout_ticks)
+{
+ uint64_t cycles_per_second;
+
+ EVENTDEV_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(dev);
+
+ cycles_per_second = rte_get_timer_hz();
+ *timeout_ticks = ns * (cycles_per_second / NS_PER_S);
+
+ return 0;
+}
+
+static void
+dpaa_event_dev_info_get(struct rte_eventdev *dev,
+ struct rte_event_dev_info *dev_info)
+{
+ EVENTDEV_DRV_FUNC_TRACE();
+
+ RTE_SET_USED(dev);
+ dev_info->driver_name = "event_dpaa";
+ dev_info->min_dequeue_timeout_ns =
+ DPAA_EVENT_MIN_DEQUEUE_TIMEOUT;
+ dev_info->max_dequeue_timeout_ns =
+ DPAA_EVENT_MAX_DEQUEUE_TIMEOUT;
+ dev_info->dequeue_timeout_ns =
+ DPAA_EVENT_MIN_DEQUEUE_TIMEOUT;
+ dev_info->max_event_queues =
+ DPAA_EVENT_MAX_QUEUES;
+ dev_info->max_event_queue_flows =
+ DPAA_EVENT_MAX_QUEUE_FLOWS;
+ dev_info->max_event_queue_priority_levels =
+ DPAA_EVENT_MAX_QUEUE_PRIORITY_LEVELS;
+ dev_info->max_event_priority_levels =
+ DPAA_EVENT_MAX_EVENT_PRIORITY_LEVELS;
+ dev_info->max_event_ports =
+ DPAA_EVENT_MAX_EVENT_PORT;
+ dev_info->max_event_port_dequeue_depth =
+ DPAA_EVENT_MAX_PORT_DEQUEUE_DEPTH;
+ dev_info->max_event_port_enqueue_depth =
+ DPAA_EVENT_MAX_PORT_ENQUEUE_DEPTH;
+ /*
+ * TODO: Need to find out that how to fetch this info
+ * from kernel or somewhere else.
+ */
+ dev_info->max_num_events =
+ DPAA_EVENT_MAX_NUM_EVENTS;
+ dev_info->event_dev_cap =
+ RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED |
+ RTE_EVENT_DEV_CAP_BURST_MODE |
+ RTE_EVENT_DEV_CAP_MULTIPLE_QUEUE_PORT |
+ RTE_EVENT_DEV_CAP_NONSEQ_MODE;
+}
+
+static int
+dpaa_event_dev_configure(const struct rte_eventdev *dev)
+{
+ struct dpaa_eventdev *priv = dev->data->dev_private;
+ struct rte_event_dev_config *conf = &dev->data->dev_conf;
+ int ret, i;
+ uint32_t *ch_id;
+
+ EVENTDEV_DRV_FUNC_TRACE();
+
+ priv->dequeue_timeout_ns = conf->dequeue_timeout_ns;
+ priv->nb_events_limit = conf->nb_events_limit;
+ priv->nb_event_queues = conf->nb_event_queues;
+ priv->nb_event_ports = conf->nb_event_ports;
+ priv->nb_event_queue_flows = conf->nb_event_queue_flows;
+ priv->nb_event_port_dequeue_depth = conf->nb_event_port_dequeue_depth;
+ priv->nb_event_port_enqueue_depth = conf->nb_event_port_enqueue_depth;
+ priv->event_dev_cfg = conf->event_dev_cfg;
+
+ /* Check dequeue timeout method is per dequeue or global */
+ if (priv->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT) {
+ /*
+ * Use timeout value as given in dequeue operation.
+ * So invalidating this timetout value.
+ */
+ priv->dequeue_timeout_ns = 0;
+ }
+
+ ch_id = rte_malloc("dpaa-channels",
+ sizeof(uint32_t) * priv->nb_event_queues,
+ RTE_CACHE_LINE_SIZE);
+ if (ch_id == NULL) {
+ EVENTDEV_DRV_ERR("Fail to allocate memory for dpaa channels\n");
+ return -ENOMEM;
+ }
+ /* Create requested event queues within the given event device */
+ ret = qman_alloc_pool_range(ch_id, priv->nb_event_queues, 1, 0);
+ if (ret < 0) {
+ EVENTDEV_DRV_ERR("Failed to create internal channel\n");
+ rte_free(ch_id);
+ return ret;
+ }
+ for (i = 0; i < priv->nb_event_queues; i++)
+ priv->evq_info[i].ch_id = (u16)ch_id[i];
+
+ /* Lets prepare event ports */
+ memset(&priv->ports[0], 0,
+ sizeof(struct dpaa_port) * priv->nb_event_ports);
+ if (priv->event_dev_cfg & RTE_EVENT_DEV_CFG_PER_DEQUEUE_TIMEOUT) {
+ for (i = 0; i < priv->nb_event_ports; i++) {
+ priv->ports[i].timeout =
+ DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_INVALID;
+ }
+ } else if (priv->dequeue_timeout_ns == 0) {
+ for (i = 0; i < priv->nb_event_ports; i++) {
+ dpaa_event_dequeue_timeout_ticks(NULL,
+ DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_NS,
+ &priv->ports[i].timeout);
+ }
+ } else {
+ for (i = 0; i < priv->nb_event_ports; i++) {
+ dpaa_event_dequeue_timeout_ticks(NULL,
+ priv->dequeue_timeout_ns,
+ &priv->ports[i].timeout);
+ }
+ }
+ /*
+ * TODO: Currently portals are affined with threads. Maximum threads
+ * can be created equals to number of lcore.
+ */
+ rte_free(ch_id);
+ EVENTDEV_DRV_LOG("Configured eventdev devid=%d", dev->data->dev_id);
+
+ return 0;
+}
+
+static int
+dpaa_event_dev_start(struct rte_eventdev *dev)
+{
+ EVENTDEV_DRV_FUNC_TRACE();
+ RTE_SET_USED(dev);
+
+ return 0;
+}
+
+static void
+dpaa_event_dev_stop(struct rte_eventdev *dev)
+{
+ EVENTDEV_DRV_FUNC_TRACE();
+ RTE_SET_USED(dev);
+}
+
+static int
+dpaa_event_dev_close(struct rte_eventdev *dev)
+{
+ EVENTDEV_DRV_FUNC_TRACE();
+ RTE_SET_USED(dev);
+
+ return 0;
+}
+
+
+
+static const struct rte_eventdev_ops dpaa_eventdev_ops = {
+ .dev_infos_get = dpaa_event_dev_info_get,
+ .dev_configure = dpaa_event_dev_configure,
+ .dev_start = dpaa_event_dev_start,
+ .dev_stop = dpaa_event_dev_stop,
+ .dev_close = dpaa_event_dev_close,
+ .timeout_ticks = dpaa_event_dequeue_timeout_ticks,
+};
+
+static int
+dpaa_event_dev_create(const char *name)
+{
+ struct rte_eventdev *eventdev;
+ struct dpaa_eventdev *priv;
+
+ eventdev = rte_event_pmd_vdev_init(name,
+ sizeof(struct dpaa_eventdev),
+ rte_socket_id());
+ if (eventdev == NULL) {
+ EVENTDEV_DRV_ERR("Failed to create eventdev vdev %s", name);
+ goto fail;
+ }
+
+ eventdev->dev_ops = &dpaa_eventdev_ops;
+
+ /* For secondary processes, the primary has done all the work */
+ if (rte_eal_process_type() != RTE_PROC_PRIMARY)
+ return 0;
+
+ priv = eventdev->data->dev_private;
+ priv->max_event_queues = DPAA_EVENT_MAX_QUEUES;
+
+ return 0;
+fail:
+ return -EFAULT;
+}
+
+static int
+dpaa_event_dev_probe(struct rte_vdev_device *vdev)
+{
+ const char *name;
+
+ name = rte_vdev_device_name(vdev);
+ EVENTDEV_DRV_LOG("Initializing %s", name);
+
+ return dpaa_event_dev_create(name);
+}
+
+static int
+dpaa_event_dev_remove(struct rte_vdev_device *vdev)
+{
+ const char *name;
+
+ name = rte_vdev_device_name(vdev);
+ EVENTDEV_DRV_LOG("Closing %s", name);
+
+ return rte_event_pmd_vdev_uninit(name);
+}
+
+static struct rte_vdev_driver vdev_eventdev_dpaa_pmd = {
+ .probe = dpaa_event_dev_probe,
+ .remove = dpaa_event_dev_remove
+};
+
+RTE_PMD_REGISTER_VDEV(EVENTDEV_NAME_DPAA_PMD, vdev_eventdev_dpaa_pmd);
--- /dev/null
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2017 NXP
+ */
+
+#ifndef __DPAA_EVENTDEV_H__
+#define __DPAA_EVENTDEV_H__
+
+#include <rte_eventdev_pmd.h>
+#include <rte_eventdev_pmd_vdev.h>
+#include <rte_atomic.h>
+#include <rte_per_lcore.h>
+
+#define EVENTDEV_NAME_DPAA_PMD event_dpaa
+
+#define EVENTDEV_DRV_LOG(fmt, args...) \
+ DPAA_EVENTDEV_INFO(fmt, ## args)
+#define EVENTDEV_DRV_FUNC_TRACE() \
+ DPAA_EVENTDEV_DEBUG("%s() Called:\n", __func__)
+#define EVENTDEV_DRV_ERR(fmt, args...) \
+ DPAA_EVENTDEV_ERR("%s(): " fmt "\n", __func__, ## args)
+
+#define DPAA_EVENT_MAX_PORTS 8
+#define DPAA_EVENT_MAX_QUEUES 16
+#define DPAA_EVENT_MIN_DEQUEUE_TIMEOUT 1
+#define DPAA_EVENT_MAX_DEQUEUE_TIMEOUT (UINT32_MAX - 1)
+#define DPAA_EVENT_MAX_QUEUE_FLOWS 2048
+#define DPAA_EVENT_MAX_QUEUE_PRIORITY_LEVELS 8
+#define DPAA_EVENT_MAX_EVENT_PRIORITY_LEVELS 0
+#define DPAA_EVENT_MAX_EVENT_PORT RTE_MAX_LCORE
+#define DPAA_EVENT_MAX_PORT_DEQUEUE_DEPTH 8
+#define DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_NS 100UL
+#define DPAA_EVENT_PORT_DEQUEUE_TIMEOUT_INVALID ((uint64_t)-1)
+#define DPAA_EVENT_MAX_PORT_ENQUEUE_DEPTH 1
+#define DPAA_EVENT_MAX_NUM_EVENTS (INT32_MAX - 1)
+
+#define DPAA_EVENT_DEV_CAP \
+do { \
+ RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED | \
+ RTE_EVENT_DEV_CAP_BURST_MODE; \
+} while (0)
+
+#define DPAA_EVENT_QUEUE_ATOMIC_FLOWS 0
+#define DPAA_EVENT_QUEUE_ORDER_SEQUENCES 2048
+
+#define RTE_EVENT_ETH_RX_ADAPTER_DPAA_CAP \
+ (RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT | \
+ RTE_EVENT_ETH_RX_ADAPTER_CAP_MULTI_EVENTQ | \
+ RTE_EVENT_ETH_RX_ADAPTER_CAP_OVERRIDE_FLOW_ID)
+
+struct dpaa_eventq {
+ /* Channel Id */
+ uint16_t ch_id;
+ /* Configuration provided by the user */
+ uint32_t event_queue_cfg;
+ uint32_t event_queue_id;
+ /* Event port */
+ void *event_port;
+};
+
+struct dpaa_port {
+ struct dpaa_eventq evq_info[DPAA_EVENT_MAX_QUEUES];
+ uint8_t num_linked_evq;
+ uint8_t is_port_linked;
+ uint64_t timeout;
+};
+
+struct dpaa_eventdev {
+ struct dpaa_eventq evq_info[DPAA_EVENT_MAX_QUEUES];
+ struct dpaa_port ports[DPAA_EVENT_MAX_PORTS];
+ uint32_t dequeue_timeout_ns;
+ uint32_t nb_events_limit;
+ uint8_t max_event_queues;
+ uint8_t nb_event_queues;
+ uint8_t nb_event_ports;
+ uint8_t resvd;
+ uint32_t nb_event_queue_flows;
+ uint32_t nb_event_port_dequeue_depth;
+ uint32_t nb_event_port_enqueue_depth;
+ uint32_t event_dev_cfg;
+};
+#endif /* __DPAA_EVENTDEV_H__ */
git.droids-corp.org / dpdk.git / commitdiff