#include <rte_ethdev.h>
#include <rte_eventdev.h>
#include <rte_event_eth_rx_adapter.h>
+#include <rte_event_eth_tx_adapter.h>
#include <rte_malloc.h>
#include <stdbool.h>
return next_core;
}
+static struct eventdev_params *
+eh_get_eventdev_params(struct eventmode_conf *em_conf, uint8_t eventdev_id)
+{
+ int i;
+
+ for (i = 0; i < em_conf->nb_eventdev; i++) {
+ if (em_conf->eventdev_config[i].eventdev_id == eventdev_id)
+ break;
+ }
+
+ /* No match */
+ if (i == em_conf->nb_eventdev)
+ return NULL;
+
+ return &(em_conf->eventdev_config[i]);
+}
static int
eh_set_default_conf_eventdev(struct eventmode_conf *em_conf)
{
return 0;
}
+static int
+eh_set_default_conf_tx_adapter(struct eventmode_conf *em_conf)
+{
+ struct tx_adapter_connection_info *conn;
+ struct eventdev_params *eventdev_config;
+ struct tx_adapter_conf *tx_adapter;
+ int eventdev_id;
+ int adapter_id;
+ int nb_eth_dev;
+ int conn_id;
+ int i;
+
+ /*
+ * Create one Tx adapter with all eth queues mapped to event queues
+ * 1:1.
+ */
+
+ if (em_conf->nb_eventdev == 0) {
+ EH_LOG_ERR("No event devs registered");
+ return -EINVAL;
+ }
+
+ /* Get the number of eth devs */
+ nb_eth_dev = rte_eth_dev_count_avail();
+
+ /* Use the first event dev */
+ eventdev_config = &(em_conf->eventdev_config[0]);
+
+ /* Get eventdev ID */
+ eventdev_id = eventdev_config->eventdev_id;
+ adapter_id = 0;
+
+ /* Get adapter conf */
+ tx_adapter = &(em_conf->tx_adapter[adapter_id]);
+
+ /* Set adapter conf */
+ tx_adapter->eventdev_id = eventdev_id;
+ tx_adapter->adapter_id = adapter_id;
+
+ /* TODO: Tx core is required only when internal port is not present */
+ tx_adapter->tx_core_id = eh_get_next_eth_core(em_conf);
+
+ /*
+ * Application uses one event queue per adapter for submitting
+ * packets for Tx. Reserve the last queue available and decrement
+ * the total available event queues for this
+ */
+
+ /* Queue numbers start at 0 */
+ tx_adapter->tx_ev_queue = eventdev_config->nb_eventqueue - 1;
+
+ /*
+ * Map all Tx queues of the eth device (port) to the event device.
+ */
+
+ /* Set defaults for connections */
+
+ /*
+ * One eth device (port) is one connection. Map all Tx queues
+ * of the device to the Tx adapter.
+ */
+
+ for (i = 0; i < nb_eth_dev; i++) {
+
+ /* Use only the ports enabled */
+ if ((em_conf->eth_portmask & (1 << i)) == 0)
+ continue;
+
+ /* Get the connection id */
+ conn_id = tx_adapter->nb_connections;
+
+ /* Get the connection */
+ conn = &(tx_adapter->conn[conn_id]);
+
+ /* Add ethdev to connections */
+ conn->ethdev_id = i;
+
+ /* Add all eth tx queues to adapter */
+ conn->ethdev_tx_qid = -1;
+
+ /* Update no of connections */
+ tx_adapter->nb_connections++;
+ }
+
+ /* We have setup one adapter */
+ em_conf->nb_tx_adapter = 1;
+ return 0;
+}
+
static int
eh_validate_conf(struct eventmode_conf *em_conf)
{
return ret;
}
+ /*
+ * Check if tx adapters are specified. Else generate a default config
+ * with one tx adapter.
+ */
+ if (em_conf->nb_tx_adapter == 0) {
+ ret = eh_set_default_conf_tx_adapter(em_conf);
+ if (ret != 0)
+ return ret;
+ }
+
return 0;
}
return 0;
}
+static int
+eh_tx_adapter_configure(struct eventmode_conf *em_conf,
+ struct tx_adapter_conf *adapter)
+{
+ struct rte_event_dev_info evdev_default_conf = {0};
+ struct rte_event_port_conf port_conf = {0};
+ struct tx_adapter_connection_info *conn;
+ struct eventdev_params *eventdev_config;
+ uint8_t tx_port_id = 0;
+ uint8_t eventdev_id;
+ uint32_t service_id;
+ int ret, j;
+
+ /* Get event dev ID */
+ eventdev_id = adapter->eventdev_id;
+
+ /* Get event device conf */
+ eventdev_config = eh_get_eventdev_params(em_conf, eventdev_id);
+
+ /* Create Tx adapter */
+
+ /* Get default configuration of event dev */
+ ret = rte_event_dev_info_get(eventdev_id, &evdev_default_conf);
+ if (ret < 0) {
+ EH_LOG_ERR("Failed to get event dev info %d", ret);
+ return ret;
+ }
+
+ /* Setup port conf */
+ port_conf.new_event_threshold =
+ evdev_default_conf.max_num_events;
+ port_conf.dequeue_depth =
+ evdev_default_conf.max_event_port_dequeue_depth;
+ port_conf.enqueue_depth =
+ evdev_default_conf.max_event_port_enqueue_depth;
+
+ /* Create adapter */
+ ret = rte_event_eth_tx_adapter_create(adapter->adapter_id,
+ adapter->eventdev_id, &port_conf);
+ if (ret < 0) {
+ EH_LOG_ERR("Failed to create tx adapter %d", ret);
+ return ret;
+ }
+
+ /* Setup various connections in the adapter */
+ for (j = 0; j < adapter->nb_connections; j++) {
+
+ /* Get connection */
+ conn = &(adapter->conn[j]);
+
+ /* Add queue to the adapter */
+ ret = rte_event_eth_tx_adapter_queue_add(adapter->adapter_id,
+ conn->ethdev_id, conn->ethdev_tx_qid);
+ if (ret < 0) {
+ EH_LOG_ERR("Failed to add eth queue to tx adapter %d",
+ ret);
+ return ret;
+ }
+ }
+
+ /* Setup Tx queue & port */
+
+ /* Get event port used by the adapter */
+ ret = rte_event_eth_tx_adapter_event_port_get(
+ adapter->adapter_id, &tx_port_id);
+ if (ret) {
+ EH_LOG_ERR("Failed to get tx adapter port id %d", ret);
+ return ret;
+ }
+
+ /*
+ * Tx event queue is reserved for Tx adapter. Unlink this queue
+ * from all other ports
+ *
+ */
+ for (j = 0; j < eventdev_config->nb_eventport; j++) {
+ rte_event_port_unlink(eventdev_id, j,
+ &(adapter->tx_ev_queue), 1);
+ }
+
+ /* Link Tx event queue to Tx port */
+ ret = rte_event_port_link(eventdev_id, tx_port_id,
+ &(adapter->tx_ev_queue), NULL, 1);
+ if (ret != 1) {
+ EH_LOG_ERR("Failed to link event queue to port");
+ return ret;
+ }
+
+ /* Get the service ID used by Tx adapter */
+ ret = rte_event_eth_tx_adapter_service_id_get(adapter->adapter_id,
+ &service_id);
+ if (ret != -ESRCH && ret < 0) {
+ EH_LOG_ERR("Failed to get service id used by tx adapter %d",
+ ret);
+ return ret;
+ }
+
+ rte_service_set_runstate_mapped_check(service_id, 0);
+
+ /* Start adapter */
+ ret = rte_event_eth_tx_adapter_start(adapter->adapter_id);
+ if (ret < 0) {
+ EH_LOG_ERR("Failed to start tx adapter %d", ret);
+ return ret;
+ }
+
+ return 0;
+}
+
+static int
+eh_initialize_tx_adapter(struct eventmode_conf *em_conf)
+{
+ struct tx_adapter_conf *adapter;
+ int i, ret;
+
+ /* Configure Tx adapters */
+ for (i = 0; i < em_conf->nb_tx_adapter; i++) {
+ adapter = &(em_conf->tx_adapter[i]);
+ ret = eh_tx_adapter_configure(em_conf, adapter);
+ if (ret < 0) {
+ EH_LOG_ERR("Failed to configure tx adapter %d", ret);
+ return ret;
+ }
+ }
+ return 0;
+}
+
int32_t
eh_devs_init(struct eh_conf *conf)
{
return ret;
}
+ /* Setup Tx adapter */
+ ret = eh_initialize_tx_adapter(em_conf);
+ if (ret < 0) {
+ EH_LOG_ERR("Failed to initialize tx adapter %d", ret);
+ return ret;
+ }
+
/* Start eth devices after setting up adapter */
RTE_ETH_FOREACH_DEV(port_id) {
}
}
+ /* Stop and release tx adapters */
+ for (i = 0; i < em_conf->nb_tx_adapter; i++) {
+
+ id = em_conf->tx_adapter[i].adapter_id;
+ ret = rte_event_eth_tx_adapter_stop(id);
+ if (ret < 0) {
+ EH_LOG_ERR("Failed to stop tx adapter %d", ret);
+ return ret;
+ }
+
+ for (j = 0; j < em_conf->tx_adapter[i].nb_connections; j++) {
+
+ ret = rte_event_eth_tx_adapter_queue_del(id,
+ em_conf->tx_adapter[i].conn[j].ethdev_id, -1);
+ if (ret < 0) {
+ EH_LOG_ERR(
+ "Failed to remove tx adapter queues %d",
+ ret);
+ return ret;
+ }
+ }
+
+ ret = rte_event_eth_tx_adapter_free(id);
+ if (ret < 0) {
+ EH_LOG_ERR("Failed to free tx adapter %d", ret);
+ return ret;
+ }
+ }
+
return 0;
}
+
+uint8_t
+eh_get_tx_queue(struct eh_conf *conf, uint8_t eventdev_id)
+{
+ struct eventdev_params *eventdev_config;
+ struct eventmode_conf *em_conf;
+
+ if (conf == NULL) {
+ EH_LOG_ERR("Invalid event helper configuration");
+ return -EINVAL;
+ }
+
+ if (conf->mode_params == NULL) {
+ EH_LOG_ERR("Invalid event mode parameters");
+ return -EINVAL;
+ }
+
+ /* Get eventmode conf */
+ em_conf = conf->mode_params;
+
+ /* Get event device conf */
+ eventdev_config = eh_get_eventdev_params(em_conf, eventdev_id);
+
+ if (eventdev_config == NULL) {
+ EH_LOG_ERR("Failed to read eventdev config");
+ return -EINVAL;
+ }
+
+ /*
+ * The last queue is reserved to be used as atomic queue for the
+ * last stage (eth packet tx stage)
+ */
+ return eventdev_config->nb_eventqueue - 1;
+}
/* Max Rx adapters supported */
#define EVENT_MODE_MAX_RX_ADAPTERS RTE_EVENT_MAX_DEVS
+/* Max Tx adapters supported */
+#define EVENT_MODE_MAX_TX_ADAPTERS RTE_EVENT_MAX_DEVS
+
/* Max Rx adapter connections */
#define EVENT_MODE_MAX_CONNECTIONS_PER_ADAPTER 16
+/* Max Tx adapter connections */
+#define EVENT_MODE_MAX_CONNECTIONS_PER_TX_ADAPTER 16
+
/* Max event queues supported per event device */
#define EVENT_MODE_MAX_EVENT_QUEUES_PER_DEV RTE_EVENT_MAX_QUEUES_PER_DEV
#define EVENT_MODE_MAX_LCORE_LINKS \
(EVENT_MODE_MAX_EVENT_DEVS * EVENT_MODE_MAX_EVENT_QUEUES_PER_DEV)
+/* Max adapters that one Tx core can handle */
+#define EVENT_MODE_MAX_ADAPTERS_PER_TX_CORE EVENT_MODE_MAX_TX_ADAPTERS
+
/**
* Packet transfer mode of the application
*/
conn[EVENT_MODE_MAX_CONNECTIONS_PER_ADAPTER];
};
+/* Tx adapter connection info */
+struct tx_adapter_connection_info {
+ uint8_t ethdev_id;
+ int32_t ethdev_tx_qid;
+};
+
+/* Tx adapter conf */
+struct tx_adapter_conf {
+ int32_t eventdev_id;
+ int32_t adapter_id;
+ uint32_t tx_core_id;
+ uint8_t nb_connections;
+ struct tx_adapter_connection_info
+ conn[EVENT_MODE_MAX_CONNECTIONS_PER_TX_ADAPTER];
+ uint8_t tx_ev_queue;
+};
+
/* Eventmode conf data */
struct eventmode_conf {
int nb_eventdev;
/**< No of Rx adapters */
struct rx_adapter_conf rx_adapter[EVENT_MODE_MAX_RX_ADAPTERS];
/**< Rx adapter conf */
+ uint8_t nb_tx_adapter;
+ /**< No of Tx adapters */
+ struct tx_adapter_conf tx_adapter[EVENT_MODE_MAX_TX_ADAPTERS];
+ /** Tx adapter conf */
uint8_t nb_link;
/**< No of links */
struct eh_event_link_info
int32_t
eh_devs_uninit(struct eh_conf *conf);
+/**
+ * Get eventdev tx queue
+ *
+ * If the application uses event device which does not support internal port
+ * then it needs to submit the events to a Tx queue before final transmission.
+ * This Tx queue will be created internally by the eventmode helper subsystem,
+ * and application will need its queue ID when it runs the execution loop.
+ *
+ * @param mode_conf
+ * Event helper configuration
+ * @param eventdev_id
+ * Event device ID
+ * @return
+ * Tx queue ID
+ */
+uint8_t
+eh_get_tx_queue(struct eh_conf *conf, uint8_t eventdev_id);
+
#endif /* _EVENT_HELPER_H_ */
git.droids-corp.org / dpdk.git / commitdiff