DPDK  20.11.3
examples/l3fwd/l3fwd_event_generic.c
/* SPDX-License-Identifier: BSD-3-Clause
* Copyright(C) 2019 Marvell International Ltd.
*/
#include <stdbool.h>
#include "l3fwd.h"
#include "l3fwd_event.h"
static uint32_t
l3fwd_event_device_setup_generic(void)
{
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
struct rte_event_dev_config event_d_conf = {
.nb_events_limit = 4096,
.nb_event_queue_flows = 1024,
.nb_event_port_dequeue_depth = 128,
.nb_event_port_enqueue_depth = 128
};
struct rte_event_dev_info dev_info;
const uint8_t event_d_id = 0; /* Always use first event device only */
uint32_t event_queue_cfg = 0;
uint16_t ethdev_count = 0;
uint16_t num_workers = 0;
uint16_t port_id;
int ret;
if ((evt_rsrc->port_mask & (1 << port_id)) == 0)
continue;
ethdev_count++;
}
/* Event device configuration */
rte_event_dev_info_get(event_d_id, &dev_info);
/* Enable implicit release */
evt_rsrc->disable_implicit_release = 0;
event_queue_cfg |= RTE_EVENT_QUEUE_CFG_ALL_TYPES;
/* One queue for each ethdev port + one Tx adapter Single link queue. */
event_d_conf.nb_event_queues = ethdev_count + 1;
if (dev_info.max_event_queues < event_d_conf.nb_event_queues)
event_d_conf.nb_event_queues = dev_info.max_event_queues;
if (dev_info.max_num_events < event_d_conf.nb_events_limit)
event_d_conf.nb_events_limit = dev_info.max_num_events;
if (dev_info.max_event_queue_flows < event_d_conf.nb_event_queue_flows)
event_d_conf.nb_event_queue_flows =
if (dev_info.max_event_ports < num_workers)
num_workers = dev_info.max_event_ports;
event_d_conf.nb_event_ports = num_workers;
evt_rsrc->evp.nb_ports = num_workers;
evt_rsrc->evq.nb_queues = event_d_conf.nb_event_queues;
evt_rsrc->has_burst = !!(dev_info.event_dev_cap &
ret = rte_event_dev_configure(event_d_id, &event_d_conf);
if (ret < 0)
rte_panic("Error in configuring event device\n");
evt_rsrc->event_d_id = event_d_id;
return event_queue_cfg;
}
static void
l3fwd_event_port_setup_generic(void)
{
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
uint8_t event_d_id = evt_rsrc->event_d_id;
struct rte_event_port_conf event_p_conf = {
.enqueue_depth = 32,
.new_event_threshold = 4096
};
struct rte_event_port_conf def_p_conf;
uint8_t event_p_id;
int32_t ret;
evt_rsrc->evp.event_p_id = (uint8_t *)malloc(sizeof(uint8_t) *
evt_rsrc->evp.nb_ports);
if (!evt_rsrc->evp.event_p_id)
rte_panic("No space is available\n");
memset(&def_p_conf, 0, sizeof(struct rte_event_port_conf));
ret = rte_event_port_default_conf_get(event_d_id, 0, &def_p_conf);
if (ret < 0)
rte_panic("Error to get default configuration of event port\n");
if (def_p_conf.new_event_threshold < event_p_conf.new_event_threshold)
event_p_conf.new_event_threshold =
def_p_conf.new_event_threshold;
if (def_p_conf.dequeue_depth < event_p_conf.dequeue_depth)
event_p_conf.dequeue_depth = def_p_conf.dequeue_depth;
if (def_p_conf.enqueue_depth < event_p_conf.enqueue_depth)
event_p_conf.enqueue_depth = def_p_conf.enqueue_depth;
event_p_conf.event_port_cfg = 0;
if (evt_rsrc->disable_implicit_release)
event_p_conf.event_port_cfg |=
evt_rsrc->deq_depth = def_p_conf.dequeue_depth;
for (event_p_id = 0; event_p_id < evt_rsrc->evp.nb_ports;
event_p_id++) {
ret = rte_event_port_setup(event_d_id, event_p_id,
&event_p_conf);
if (ret < 0)
rte_panic("Error in configuring event port %d\n",
event_p_id);
ret = rte_event_port_link(event_d_id, event_p_id,
evt_rsrc->evq.event_q_id,
NULL,
evt_rsrc->evq.nb_queues - 1);
if (ret != (evt_rsrc->evq.nb_queues - 1))
rte_panic("Error in linking event port %d to queues\n",
event_p_id);
evt_rsrc->evp.event_p_id[event_p_id] = event_p_id;
}
/* init spinlock */
rte_spinlock_init(&evt_rsrc->evp.lock);
evt_rsrc->def_p_conf = event_p_conf;
}
static void
l3fwd_event_queue_setup_generic(uint32_t event_queue_cfg)
{
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
uint8_t event_d_id = evt_rsrc->event_d_id;
struct rte_event_queue_conf event_q_conf = {
.nb_atomic_flows = 1024,
.nb_atomic_order_sequences = 1024,
.event_queue_cfg = event_queue_cfg,
};
struct rte_event_queue_conf def_q_conf;
uint8_t event_q_id;
int32_t ret;
event_q_conf.schedule_type = evt_rsrc->sched_type;
evt_rsrc->evq.event_q_id = (uint8_t *)malloc(sizeof(uint8_t) *
evt_rsrc->evq.nb_queues);
if (!evt_rsrc->evq.event_q_id)
rte_panic("Memory allocation failure\n");
ret = rte_event_queue_default_conf_get(event_d_id, 0, &def_q_conf);
if (ret < 0)
rte_panic("Error to get default config of event queue\n");
if (def_q_conf.nb_atomic_flows < event_q_conf.nb_atomic_flows)
event_q_conf.nb_atomic_flows = def_q_conf.nb_atomic_flows;
for (event_q_id = 0; event_q_id < (evt_rsrc->evq.nb_queues - 1);
event_q_id++) {
ret = rte_event_queue_setup(event_d_id, event_q_id,
&event_q_conf);
if (ret < 0)
rte_panic("Error in configuring event queue\n");
evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
}
ret = rte_event_queue_setup(event_d_id, event_q_id, &event_q_conf);
if (ret < 0)
rte_panic("Error in configuring event queue for Tx adapter\n");
evt_rsrc->evq.event_q_id[event_q_id] = event_q_id;
}
static void
l3fwd_rx_tx_adapter_setup_generic(void)
{
struct l3fwd_event_resources *evt_rsrc = l3fwd_get_eventdev_rsrc();
uint8_t event_d_id = evt_rsrc->event_d_id;
uint8_t rx_adptr_id = 0;
uint8_t tx_adptr_id = 0;
uint8_t tx_port_id = 0;
uint16_t port_id;
uint32_t service_id;
int32_t ret, i = 0;
memset(&eth_q_conf, 0, sizeof(eth_q_conf));
/* Rx adapter setup */
evt_rsrc->rx_adptr.nb_rx_adptr = 1;
evt_rsrc->rx_adptr.rx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
evt_rsrc->rx_adptr.nb_rx_adptr);
if (!evt_rsrc->rx_adptr.rx_adptr) {
free(evt_rsrc->evp.event_p_id);
free(evt_rsrc->evq.event_q_id);
rte_panic("Failed to allocate memory for Rx adapter\n");
}
ret = rte_event_eth_rx_adapter_create(rx_adptr_id, event_d_id,
&evt_rsrc->def_p_conf);
if (ret)
rte_panic("Failed to create rx adapter\n");
/* Configure user requested sched type */
eth_q_conf.ev.sched_type = evt_rsrc->sched_type;
if ((evt_rsrc->port_mask & (1 << port_id)) == 0)
continue;
eth_q_conf.ev.queue_id = evt_rsrc->evq.event_q_id[i];
ret = rte_event_eth_rx_adapter_queue_add(rx_adptr_id, port_id,
-1, &eth_q_conf);
if (ret)
rte_panic("Failed to add queues to Rx adapter\n");
if (i < evt_rsrc->evq.nb_queues)
i++;
}
ret = rte_event_eth_rx_adapter_service_id_get(rx_adptr_id, &service_id);
if (ret != -ESRCH && ret != 0)
rte_panic("Error getting the service ID for rx adptr\n");
rte_service_runstate_set(service_id, 1);
evt_rsrc->rx_adptr.service_id = service_id;
ret = rte_event_eth_rx_adapter_start(rx_adptr_id);
if (ret)
rte_panic("Rx adapter[%d] start Failed\n", rx_adptr_id);
evt_rsrc->rx_adptr.rx_adptr[0] = rx_adptr_id;
/* Tx adapter setup */
evt_rsrc->tx_adptr.nb_tx_adptr = 1;
evt_rsrc->tx_adptr.tx_adptr = (uint8_t *)malloc(sizeof(uint8_t) *
evt_rsrc->tx_adptr.nb_tx_adptr);
if (!evt_rsrc->tx_adptr.tx_adptr) {
free(evt_rsrc->rx_adptr.rx_adptr);
free(evt_rsrc->evp.event_p_id);
free(evt_rsrc->evq.event_q_id);
rte_panic("Failed to allocate memory for Rx adapter\n");
}
ret = rte_event_eth_tx_adapter_create(tx_adptr_id, event_d_id,
&evt_rsrc->def_p_conf);
if (ret)
rte_panic("Failed to create tx adapter\n");
if ((evt_rsrc->port_mask & (1 << port_id)) == 0)
continue;
ret = rte_event_eth_tx_adapter_queue_add(tx_adptr_id, port_id,
-1);
if (ret)
rte_panic("Failed to add queues to Tx adapter\n");
}
ret = rte_event_eth_tx_adapter_service_id_get(tx_adptr_id, &service_id);
if (ret != -ESRCH && ret != 0)
rte_panic("Failed to get Tx adapter service ID\n");
rte_service_runstate_set(service_id, 1);
evt_rsrc->tx_adptr.service_id = service_id;
ret = rte_event_eth_tx_adapter_event_port_get(tx_adptr_id, &tx_port_id);
if (ret)
rte_panic("Failed to get Tx adapter port id: %d\n", ret);
ret = rte_event_port_link(event_d_id, tx_port_id,
&evt_rsrc->evq.event_q_id[
evt_rsrc->evq.nb_queues - 1],
NULL, 1);
if (ret != 1)
rte_panic("Unable to link Tx adapter port to Tx queue:err=%d\n",
ret);
ret = rte_event_eth_tx_adapter_start(tx_adptr_id);
if (ret)
rte_panic("Tx adapter[%d] start Failed\n", tx_adptr_id);
evt_rsrc->tx_adptr.tx_adptr[0] = tx_adptr_id;
}
void
l3fwd_event_set_generic_ops(struct l3fwd_event_setup_ops *ops)
{
ops->event_device_setup = l3fwd_event_device_setup_generic;
ops->event_queue_setup = l3fwd_event_queue_setup_generic;
ops->event_port_setup = l3fwd_event_port_setup_generic;
ops->adapter_setup = l3fwd_rx_tx_adapter_setup_generic;
}