#include "event_helper.h"
+static volatile bool eth_core_running;
+
static int
eh_get_enabled_cores(struct rte_bitmap *eth_core_mask)
{
return &(em_conf->eventdev_config[i]);
}
+static inline bool
+eh_dev_has_burst_mode(uint8_t dev_id)
+{
+ struct rte_event_dev_info dev_info;
+
+ rte_event_dev_info_get(dev_id, &dev_info);
+ return (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_BURST_MODE) ?
+ true : false;
+}
+
static int
eh_set_default_conf_eventdev(struct eventmode_conf *em_conf)
{
return 0;
}
+static int32_t
+eh_start_worker_eth_core(struct eventmode_conf *conf, uint32_t lcore_id)
+{
+ uint32_t service_id[EVENT_MODE_MAX_ADAPTERS_PER_RX_CORE];
+ struct rx_adapter_conf *rx_adapter;
+ struct tx_adapter_conf *tx_adapter;
+ int service_count = 0;
+ int adapter_id;
+ int32_t ret;
+ int i;
+
+ EH_LOG_INFO("Entering eth_core processing on lcore %u", lcore_id);
+
+ /*
+ * Parse adapter config to check which of all Rx adapters need
+ * to be handled by this core.
+ */
+ for (i = 0; i < conf->nb_rx_adapter; i++) {
+ /* Check if we have exceeded the max allowed */
+ if (service_count > EVENT_MODE_MAX_ADAPTERS_PER_RX_CORE) {
+ EH_LOG_ERR(
+ "Exceeded the max allowed adapters per rx core");
+ break;
+ }
+
+ rx_adapter = &(conf->rx_adapter[i]);
+ if (rx_adapter->rx_core_id != lcore_id)
+ continue;
+
+ /* Adapter is handled by this core */
+ adapter_id = rx_adapter->adapter_id;
+
+ /* Get the service ID for the adapters */
+ ret = rte_event_eth_rx_adapter_service_id_get(adapter_id,
+ &(service_id[service_count]));
+
+ if (ret != -ESRCH && ret < 0) {
+ EH_LOG_ERR(
+ "Failed to get service id used by rx adapter");
+ return ret;
+ }
+
+ /* Update service count */
+ service_count++;
+ }
+
+ /*
+ * Parse adapter config to see which of all Tx adapters need
+ * to be handled by this core.
+ */
+ for (i = 0; i < conf->nb_tx_adapter; i++) {
+ /* Check if we have exceeded the max allowed */
+ if (service_count > EVENT_MODE_MAX_ADAPTERS_PER_TX_CORE) {
+ EH_LOG_ERR(
+ "Exceeded the max allowed adapters per tx core");
+ break;
+ }
+
+ tx_adapter = &conf->tx_adapter[i];
+ if (tx_adapter->tx_core_id != lcore_id)
+ continue;
+
+ /* Adapter is handled by this core */
+ adapter_id = tx_adapter->adapter_id;
+
+ /* Get the service ID for the adapters */
+ ret = rte_event_eth_tx_adapter_service_id_get(adapter_id,
+ &(service_id[service_count]));
+
+ if (ret != -ESRCH && ret < 0) {
+ EH_LOG_ERR(
+ "Failed to get service id used by tx adapter");
+ return ret;
+ }
+
+ /* Update service count */
+ service_count++;
+ }
+
+ eth_core_running = true;
+
+ while (eth_core_running) {
+ for (i = 0; i < service_count; i++) {
+ /* Initiate adapter service */
+ rte_service_run_iter_on_app_lcore(service_id[i], 0);
+ }
+ }
+
+ return 0;
+}
+
+static int32_t
+eh_stop_worker_eth_core(void)
+{
+ if (eth_core_running) {
+ EH_LOG_INFO("Stopping eth cores");
+ eth_core_running = false;
+ }
+ return 0;
+}
+
+static struct eh_app_worker_params *
+eh_find_worker(uint32_t lcore_id, struct eh_conf *conf,
+ struct eh_app_worker_params *app_wrkrs, uint8_t nb_wrkr_param)
+{
+ struct eh_app_worker_params curr_conf = { {{0} }, NULL};
+ struct eh_event_link_info *link = NULL;
+ struct eh_app_worker_params *tmp_wrkr;
+ struct eventmode_conf *em_conf;
+ uint8_t eventdev_id;
+ int i;
+
+ /* Get eventmode config */
+ em_conf = conf->mode_params;
+
+ /*
+ * Use event device from the first lcore-event link.
+ *
+ * Assumption: All lcore-event links tied to a core are using the
+ * same event device. In other words, one core would be polling on
+ * queues of a single event device only.
+ */
+
+ /* Get a link for this lcore */
+ for (i = 0; i < em_conf->nb_link; i++) {
+ link = &(em_conf->link[i]);
+ if (link->lcore_id == lcore_id)
+ break;
+ }
+
+ if (link == NULL) {
+ EH_LOG_ERR("No valid link found for lcore %d", lcore_id);
+ return NULL;
+ }
+
+ /* Get event dev ID */
+ eventdev_id = link->eventdev_id;
+
+ /* Populate the curr_conf with the capabilities */
+
+ /* Check for burst mode */
+ if (eh_dev_has_burst_mode(eventdev_id))
+ curr_conf.cap.burst = EH_RX_TYPE_BURST;
+ else
+ curr_conf.cap.burst = EH_RX_TYPE_NON_BURST;
+
+ /* Parse the passed list and see if we have matching capabilities */
+
+ /* Initialize the pointer used to traverse the list */
+ tmp_wrkr = app_wrkrs;
+
+ for (i = 0; i < nb_wrkr_param; i++, tmp_wrkr++) {
+
+ /* Skip this if capabilities are not matching */
+ if (tmp_wrkr->cap.u64 != curr_conf.cap.u64)
+ continue;
+
+ /* If the checks pass, we have a match */
+ return tmp_wrkr;
+ }
+
+ return NULL;
+}
+
+static int
+eh_verify_match_worker(struct eh_app_worker_params *match_wrkr)
+{
+ /* Verify registered worker */
+ if (match_wrkr->worker_thread == NULL) {
+ EH_LOG_ERR("No worker registered");
+ return 0;
+ }
+
+ /* Success */
+ return 1;
+}
+
+static uint8_t
+eh_get_event_lcore_links(uint32_t lcore_id, struct eh_conf *conf,
+ struct eh_event_link_info **links)
+{
+ struct eh_event_link_info *link_cache;
+ struct eventmode_conf *em_conf = NULL;
+ struct eh_event_link_info *link;
+ uint8_t lcore_nb_link = 0;
+ size_t single_link_size;
+ size_t cache_size;
+ int index = 0;
+ int i;
+
+ if (conf == NULL || links == NULL) {
+ EH_LOG_ERR("Invalid args");
+ return -EINVAL;
+ }
+
+ /* Get eventmode conf */
+ em_conf = conf->mode_params;
+
+ if (em_conf == NULL) {
+ EH_LOG_ERR("Invalid event mode parameters");
+ return -EINVAL;
+ }
+
+ /* Get the number of links registered */
+ for (i = 0; i < em_conf->nb_link; i++) {
+
+ /* Get link */
+ link = &(em_conf->link[i]);
+
+ /* Check if we have link intended for this lcore */
+ if (link->lcore_id == lcore_id) {
+
+ /* Update the number of links for this core */
+ lcore_nb_link++;
+
+ }
+ }
+
+ /* Compute size of one entry to be copied */
+ single_link_size = sizeof(struct eh_event_link_info);
+
+ /* Compute size of the buffer required */
+ cache_size = lcore_nb_link * sizeof(struct eh_event_link_info);
+
+ /* Compute size of the buffer required */
+ link_cache = calloc(1, cache_size);
+
+ /* Get the number of links registered */
+ for (i = 0; i < em_conf->nb_link; i++) {
+
+ /* Get link */
+ link = &(em_conf->link[i]);
+
+ /* Check if we have link intended for this lcore */
+ if (link->lcore_id == lcore_id) {
+
+ /* Cache the link */
+ memcpy(&link_cache[index], link, single_link_size);
+
+ /* Update index */
+ index++;
+ }
+ }
+
+ /* Update the links for application to use the cached links */
+ *links = link_cache;
+
+ /* Return the number of cached links */
+ return lcore_nb_link;
+}
+
static int
eh_tx_adapter_configure(struct eventmode_conf *em_conf,
struct tx_adapter_conf *adapter)
return 0;
}
+void
+eh_launch_worker(struct eh_conf *conf, struct eh_app_worker_params *app_wrkr,
+ uint8_t nb_wrkr_param)
+{
+ struct eh_app_worker_params *match_wrkr;
+ struct eh_event_link_info *links = NULL;
+ struct eventmode_conf *em_conf;
+ uint32_t lcore_id;
+ uint8_t nb_links;
+
+ if (conf == NULL) {
+ EH_LOG_ERR("Invalid event helper configuration");
+ return;
+ }
+
+ if (conf->mode_params == NULL) {
+ EH_LOG_ERR("Invalid event mode parameters");
+ return;
+ }
+
+ /* Get eventmode conf */
+ em_conf = conf->mode_params;
+
+ /* Get core ID */
+ lcore_id = rte_lcore_id();
+
+ /* Check if this is eth core */
+ if (rte_bitmap_get(em_conf->eth_core_mask, lcore_id)) {
+ eh_start_worker_eth_core(em_conf, lcore_id);
+ return;
+ }
+
+ if (app_wrkr == NULL || nb_wrkr_param == 0) {
+ EH_LOG_ERR("Invalid args");
+ return;
+ }
+
+ /*
+ * This is a regular worker thread. The application registers
+ * multiple workers with various capabilities. Run worker
+ * based on the selected capabilities of the event
+ * device configured.
+ */
+
+ /* Get the first matching worker for the event device */
+ match_wrkr = eh_find_worker(lcore_id, conf, app_wrkr, nb_wrkr_param);
+ if (match_wrkr == NULL) {
+ EH_LOG_ERR("Failed to match worker registered for lcore %d",
+ lcore_id);
+ goto clean_and_exit;
+ }
+
+ /* Verify sanity of the matched worker */
+ if (eh_verify_match_worker(match_wrkr) != 1) {
+ EH_LOG_ERR("Failed to validate the matched worker");
+ goto clean_and_exit;
+ }
+
+ /* Get worker links */
+ nb_links = eh_get_event_lcore_links(lcore_id, conf, &links);
+
+ /* Launch the worker thread */
+ match_wrkr->worker_thread(links, nb_links);
+
+ /* Free links info memory */
+ free(links);
+
+clean_and_exit:
+
+ /* Flag eth_cores to stop, if started */
+ eh_stop_worker_eth_core();
+}
+
uint8_t
eh_get_tx_queue(struct eh_conf *conf, uint8_t eventdev_id)
{
git.droids-corp.org / dpdk.git / commitdiff