@@ -43,6 +43,7 @@ APP = eventdev_pipeline_sw_pmd
# all source are stored in SRCS-y
SRCS-y := main.c
SRCS-y += pipeline_worker_generic.c
+SRCS-y += pipeline_worker_tx.c
CFLAGS += -O3
CFLAGS += $(WERROR_FLAGS)
@@ -382,9 +382,20 @@ init_ports(unsigned int num_ports)
static void
do_capability_setup(uint16_t nb_ethdev, uint8_t eventdev_id)
{
- RTE_SET_USED(nb_ethdev);
+ int i;
+ uint8_t mt_unsafe = 0;
uint8_t burst = 0;
+ for (i = 0; i < nb_ethdev; i++) {
+ struct rte_eth_dev_info dev_info;
+ memset(&dev_info, 0, sizeof(struct rte_eth_dev_info));
+
+ rte_eth_dev_info_get(i, &dev_info);
+ /* Check if it is safe ask worker to tx. */
+ mt_unsafe |= !(dev_info.tx_offload_capa &
+ DEV_TX_OFFLOAD_MT_LOCKFREE);
+ }
+
struct rte_event_dev_info eventdev_info;
memset(&eventdev_info, 0, sizeof(struct rte_event_dev_info));
@@ -392,7 +403,10 @@ do_capability_setup(uint16_t nb_ethdev, uint8_t eventdev_id)
burst = eventdev_info.event_dev_cap & RTE_EVENT_DEV_CAP_BURST_MODE ? 1 :
0;
- set_worker_generic_setup_data(&fdata->cap, burst);
+ if (mt_unsafe)
+ set_worker_generic_setup_data(&fdata->cap, burst);
+ else
+ set_worker_tx_setup_data(&fdata->cap, burst);
}
static void
@@ -108,6 +108,7 @@ struct config_data {
int dump_dev_signal;
unsigned int num_stages;
unsigned int worker_cq_depth;
+ unsigned int rx_stride;
int16_t next_qid[MAX_NUM_STAGES+2];
int16_t qid[MAX_NUM_STAGES];
uint8_t rx_adapter_id;
@@ -178,3 +179,4 @@ schedule_devices(unsigned int lcore_id)
}
void set_worker_generic_setup_data(struct setup_data *caps, bool burst);
+void set_worker_tx_setup_data(struct setup_data *caps, bool burst);
new file mode 100644
@@ -0,0 +1,433 @@
+/*
+ * BSD LICENSE
+ *
+ * Copyright 2016 Cavium, Inc.
+ *
+ * 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, Inc 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 "pipeline_common.h"
+
+static __rte_always_inline void
+worker_fwd_event(struct rte_event *ev, uint8_t sched)
+{
+ ev->event_type = RTE_EVENT_TYPE_CPU;
+ ev->op = RTE_EVENT_OP_FORWARD;
+ ev->sched_type = sched;
+}
+
+static __rte_always_inline void
+worker_event_enqueue(const uint8_t dev, const uint8_t port,
+ struct rte_event *ev)
+{
+ while (rte_event_enqueue_burst(dev, port, ev, 1) != 1)
+ rte_pause();
+}
+
+static __rte_always_inline void
+worker_tx_pkt(struct rte_mbuf *mbuf)
+{
+ while (rte_eth_tx_burst(mbuf->port, 0, &mbuf, 1) != 1)
+ rte_pause();
+}
+
+/* Multi stage Pipeline Workers */
+
+static int
+worker_do_tx(void *arg)
+{
+ struct rte_event ev;
+
+ struct worker_data *data = (struct worker_data *)arg;
+ const uint8_t dev = data->dev_id;
+ const uint8_t port = data->port_id;
+ const uint8_t lst_qid = cdata.num_stages - 1;
+ size_t fwd = 0, received = 0, tx = 0;
+
+
+ while (!fdata->done) {
+
+ if (!rte_event_dequeue_burst(dev, port, &ev, 1, 0)) {
+ rte_pause();
+ continue;
+ }
+
+ received++;
+ const uint8_t cq_id = ev.queue_id % cdata.num_stages;
+
+ if (cq_id >= lst_qid) {
+ if (ev.sched_type == RTE_SCHED_TYPE_ATOMIC) {
+ worker_tx_pkt(ev.mbuf);
+ tx++;
+ continue;
+ }
+
+ worker_fwd_event(&ev, RTE_SCHED_TYPE_ATOMIC);
+ ev.queue_id = (cq_id == lst_qid) ?
+ cdata.next_qid[ev.queue_id] : ev.queue_id;
+ } else {
+ ev.queue_id = cdata.next_qid[ev.queue_id];
+ worker_fwd_event(&ev, cdata.queue_type);
+ }
+ work(ev.mbuf);
+
+ worker_event_enqueue(dev, port, &ev);
+ fwd++;
+ }
+
+ if (!cdata.quiet)
+ printf(" worker %u thread done. RX=%zu FWD=%zu TX=%zu\n",
+ rte_lcore_id(), received, fwd, tx);
+
+ return 0;
+}
+
+static int
+setup_eventdev_w(struct prod_data *prod_data,
+ struct cons_data *cons_data,
+ struct worker_data *worker_data)
+{
+ RTE_SET_USED(prod_data);
+ RTE_SET_USED(cons_data);
+ uint8_t i;
+ const uint8_t dev_id = 0;
+ const uint8_t nb_ports = cdata.num_workers;
+ uint8_t nb_slots = 0;
+ uint8_t nb_queues = rte_eth_dev_count() * cdata.num_stages;
+
+ struct rte_event_dev_config config = {
+ .nb_event_queues = nb_queues,
+ .nb_event_ports = nb_ports,
+ .nb_events_limit = 4096,
+ .nb_event_queue_flows = 1024,
+ .nb_event_port_dequeue_depth = 128,
+ .nb_event_port_enqueue_depth = 128,
+ };
+ struct rte_event_port_conf wkr_p_conf = {
+ .dequeue_depth = cdata.worker_cq_depth,
+ .enqueue_depth = 64,
+ .new_event_threshold = 4096,
+ };
+ struct rte_event_queue_conf wkr_q_conf = {
+ .schedule_type = cdata.queue_type,
+ .priority = RTE_EVENT_DEV_PRIORITY_NORMAL,
+ .nb_atomic_flows = 1024,
+ .nb_atomic_order_sequences = 1024,
+ };
+
+ int ret, ndev = rte_event_dev_count();
+
+ if (ndev < 1) {
+ printf("%d: No Eventdev Devices Found\n", __LINE__);
+ return -1;
+ }
+
+
+ struct rte_event_dev_info dev_info;
+ ret = rte_event_dev_info_get(dev_id, &dev_info);
+ printf("\tEventdev %d: %s\n", dev_id, dev_info.driver_name);
+
+ if (dev_info.max_event_port_dequeue_depth <
+ config.nb_event_port_dequeue_depth)
+ config.nb_event_port_dequeue_depth =
+ dev_info.max_event_port_dequeue_depth;
+ if (dev_info.max_event_port_enqueue_depth <
+ config.nb_event_port_enqueue_depth)
+ config.nb_event_port_enqueue_depth =
+ dev_info.max_event_port_enqueue_depth;
+
+ ret = rte_event_dev_configure(dev_id, &config);
+ if (ret < 0) {
+ printf("%d: Error configuring device\n", __LINE__);
+ return -1;
+ }
+
+ printf(" Stages:\n");
+ for (i = 0; i < nb_queues; i++) {
+
+ uint8_t slot;
+
+ nb_slots = cdata.num_stages + 1;
+ slot = i % nb_slots;
+ wkr_q_conf.schedule_type = slot == cdata.num_stages ?
+ RTE_SCHED_TYPE_ATOMIC : cdata.queue_type;
+
+ if (rte_event_queue_setup(dev_id, i, &wkr_q_conf) < 0) {
+ printf("%d: error creating qid %d\n", __LINE__, i);
+ return -1;
+ }
+ cdata.qid[i] = i;
+ cdata.next_qid[i] = i+1;
+ if (cdata.enable_queue_priorities) {
+ const uint32_t prio_delta =
+ (RTE_EVENT_DEV_PRIORITY_LOWEST) /
+ nb_slots;
+
+ /* higher priority for queues closer to tx */
+ wkr_q_conf.priority =
+ RTE_EVENT_DEV_PRIORITY_LOWEST - prio_delta *
+ (i % nb_slots);
+ }
+
+ const char *type_str = "Atomic";
+ switch (wkr_q_conf.schedule_type) {
+ case RTE_SCHED_TYPE_ORDERED:
+ type_str = "Ordered";
+ break;
+ case RTE_SCHED_TYPE_PARALLEL:
+ type_str = "Parallel";
+ break;
+ }
+ printf("\tStage %d, Type %s\tPriority = %d\n", i, type_str,
+ wkr_q_conf.priority);
+ }
+
+ printf("\n");
+ if (wkr_p_conf.dequeue_depth > config.nb_event_port_dequeue_depth)
+ wkr_p_conf.dequeue_depth = config.nb_event_port_dequeue_depth;
+ if (wkr_p_conf.enqueue_depth > config.nb_event_port_enqueue_depth)
+ wkr_p_conf.enqueue_depth = config.nb_event_port_enqueue_depth;
+
+ /* set up one port per worker, linking to all stage queues */
+ for (i = 0; i < cdata.num_workers; i++) {
+ struct worker_data *w = &worker_data[i];
+ w->dev_id = dev_id;
+ if (rte_event_port_setup(dev_id, i, &wkr_p_conf) < 0) {
+ printf("Error setting up port %d\n", i);
+ return -1;
+ }
+
+ if (rte_event_port_link(dev_id, i, NULL, NULL, 0)
+ != nb_queues) {
+ printf("%d: error creating link for port %d\n",
+ __LINE__, i);
+ return -1;
+ }
+ w->port_id = i;
+ }
+
+ cdata.rx_stride = nb_slots;
+ ret = rte_event_dev_service_id_get(dev_id,
+ &fdata->evdev_service_id);
+ if (ret != -ESRCH && ret != 0) {
+ printf("Error getting the service ID for sw eventdev\n");
+ return -1;
+ }
+ rte_service_runstate_set(fdata->evdev_service_id, 1);
+ rte_service_set_runstate_mapped_check(fdata->evdev_service_id, 0);
+ if (rte_event_dev_start(dev_id) < 0) {
+ printf("Error starting eventdev\n");
+ return -1;
+ }
+
+ return dev_id;
+}
+
+
+struct rx_adptr_services {
+ uint16_t nb_rx_adptrs;
+ uint32_t *rx_adpt_arr;
+};
+
+static int32_t
+service_rx_adapter(void *arg)
+{
+ int i;
+ struct rx_adptr_services *adptr_services = arg;
+
+ for (i = 0; i < adptr_services->nb_rx_adptrs; i++)
+ rte_service_run_iter_on_app_lcore(
+ adptr_services->rx_adpt_arr[i], 1);
+ return 0;
+}
+
+static void
+init_rx_adapter(uint16_t nb_ports)
+{
+ int i;
+ int ret;
+ uint8_t evdev_id = 0;
+ struct rx_adptr_services *adptr_services = NULL;
+ struct rte_event_dev_info dev_info;
+
+ ret = rte_event_dev_info_get(evdev_id, &dev_info);
+ adptr_services = rte_zmalloc(NULL, sizeof(struct rx_adptr_services), 0);
+
+ struct rte_event_port_conf rx_p_conf = {
+ .dequeue_depth = 8,
+ .enqueue_depth = 8,
+ .new_event_threshold = 1200,
+ };
+
+ if (rx_p_conf.dequeue_depth > dev_info.max_event_port_dequeue_depth)
+ rx_p_conf.dequeue_depth = dev_info.max_event_port_dequeue_depth;
+ if (rx_p_conf.enqueue_depth > dev_info.max_event_port_enqueue_depth)
+ rx_p_conf.enqueue_depth = dev_info.max_event_port_enqueue_depth;
+
+
+ struct rte_event_eth_rx_adapter_queue_conf queue_conf = {
+ .ev.sched_type = cdata.queue_type,
+ };
+
+ for (i = 0; i < nb_ports; i++) {
+ uint32_t cap;
+ uint32_t service_id;
+
+ ret = rte_event_eth_rx_adapter_create(i, evdev_id, &rx_p_conf);
+ if (ret)
+ rte_exit(EXIT_FAILURE,
+ "failed to create rx adapter[%d]",
+ cdata.rx_adapter_id);
+
+ ret = rte_event_eth_rx_adapter_caps_get(evdev_id, i, &cap);
+ if (ret)
+ rte_exit(EXIT_FAILURE,
+ "failed to get event rx adapter "
+ "capabilities");
+
+ queue_conf.ev.queue_id = cdata.rx_stride ?
+ (i * cdata.rx_stride)
+ : (uint8_t)cdata.qid[0];
+
+ ret = rte_event_eth_rx_adapter_queue_add(i, i, -1, &queue_conf);
+ if (ret)
+ rte_exit(EXIT_FAILURE,
+ "Failed to add queues to Rx adapter");
+
+
+ /* Producer needs to be scheduled. */
+ if (!(cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT)) {
+ ret = rte_event_eth_rx_adapter_service_id_get(i,
+ &service_id);
+ if (ret != -ESRCH && ret != 0) {
+ rte_exit(EXIT_FAILURE,
+ "Error getting the service ID for rx adptr\n");
+ }
+
+ rte_service_runstate_set(service_id, 1);
+ rte_service_set_runstate_mapped_check(service_id, 0);
+
+ adptr_services->nb_rx_adptrs++;
+ adptr_services->rx_adpt_arr = rte_realloc(
+ adptr_services->rx_adpt_arr,
+ adptr_services->nb_rx_adptrs *
+ sizeof(uint32_t), 0);
+ adptr_services->rx_adpt_arr[
+ adptr_services->nb_rx_adptrs - 1] =
+ service_id;
+ }
+
+ ret = rte_event_eth_rx_adapter_start(i);
+ if (ret)
+ rte_exit(EXIT_FAILURE, "Rx adapter[%d] start failed",
+ cdata.rx_adapter_id);
+ }
+
+ prod_data.dev_id = evdev_id;
+ prod_data.qid = 0;
+
+ if (adptr_services->nb_rx_adptrs) {
+ struct rte_service_spec service;
+
+ memset(&service, 0, sizeof(struct rte_service_spec));
+ snprintf(service.name, sizeof(service.name), "rx_service");
+ service.callback = service_rx_adapter;
+ service.callback_userdata = (void *)adptr_services;
+
+ int32_t ret = rte_service_component_register(&service,
+ &fdata->rxadptr_service_id);
+ if (ret)
+ rte_exit(EXIT_FAILURE,
+ "Rx adapter[%d] service register failed",
+ cdata.rx_adapter_id);
+
+ rte_service_runstate_set(fdata->rxadptr_service_id, 1);
+ rte_service_component_runstate_set(fdata->rxadptr_service_id,
+ 1);
+ rte_service_set_runstate_mapped_check(fdata->rxadptr_service_id,
+ 0);
+ } else
+ rte_free(adptr_services);
+
+
+ if (!adptr_services->nb_rx_adptrs && fdata->cap.consumer_loop == NULL &&
+ (dev_info.event_dev_cap &
+ RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED))
+ fdata->cap.schedule_loop = NULL;
+}
+
+static void
+opt_check(void)
+{
+ int i;
+ int ret;
+ uint32_t cap = 0;
+ uint8_t rx_needed = 0;
+ struct rte_event_dev_info eventdev_info;
+
+ memset(&eventdev_info, 0, sizeof(struct rte_event_dev_info));
+ rte_event_dev_info_get(0, &eventdev_info);
+
+ for (i = 0; i < rte_eth_dev_count(); i++) {
+ ret = rte_event_eth_rx_adapter_caps_get(0, i, &cap);
+ if (ret)
+ rte_exit(EXIT_FAILURE,
+ "failed to get event rx adapter "
+ "capabilities");
+ rx_needed |=
+ !(cap & RTE_EVENT_ETH_RX_ADAPTER_CAP_INTERNAL_PORT);
+ }
+
+ if (cdata.worker_lcore_mask == 0 ||
+ (rx_needed && cdata.rx_lcore_mask == 0) ||
+ (cdata.sched_lcore_mask == 0 &&
+ !(eventdev_info.event_dev_cap &
+ RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED))) {
+ printf("Core part of pipeline was not assigned any cores. "
+ "This will stall the pipeline, please check core masks "
+ "(use -h for details on setting core masks):\n"
+ "\trx: %"PRIu64"\n\ttx: %"PRIu64"\n\tsched: %"PRIu64
+ "\n\tworkers: %"PRIu64"\n",
+ cdata.rx_lcore_mask, cdata.tx_lcore_mask,
+ cdata.sched_lcore_mask,
+ cdata.worker_lcore_mask);
+ rte_exit(-1, "Fix core masks\n");
+ }
+}
+
+void
+set_worker_tx_setup_data(struct setup_data *caps, bool burst)
+{
+ RTE_SET_USED(burst);
+ caps->worker_loop = worker_do_tx;
+
+ caps->opt_check = opt_check;
+ caps->consumer_loop = NULL;
+ caps->schedule_loop = schedule_devices;
+ caps->eventdev_setup = setup_eventdev_w;
+ caps->rx_adapter_setup = init_rx_adapter;
+}