Generate a default conf for event devs, if it's not specified in the
conf. This routine will check the available event devices and it's
properties and sets the conf accordingly.
Signed-off-by: Anoob Joseph <anoob.jos...@caviumnetworks.com>
---
lib/librte_eventdev/rte_eventmode_helper.c | 67 ++++++++++++++++++++++++++++++
1 file changed, 67 insertions(+)
diff --git a/lib/librte_eventdev/rte_eventmode_helper.c
b/lib/librte_eventdev/rte_eventmode_helper.c
index 8dbbd1a..4d6888c 100644
--- a/lib/librte_eventdev/rte_eventmode_helper.c
+++ b/lib/librte_eventdev/rte_eventmode_helper.c
@@ -196,6 +196,63 @@ rte_eventmode_validate_user_params(struct eventmode_conf
*em_conf)
}
static int
+rte_eventmode_helper_set_default_conf_eventdev(struct eventmode_conf *em_conf)
+{
+ int i, ret;
+ int nb_eventdev;
+ struct eventdev_params *eventdev_config;
+ struct rte_event_dev_info dev_info;
+
+ /* Get the number of event devices */
+ nb_eventdev = rte_event_dev_count();
+
+ if (nb_eventdev == 0) {
+ RTE_EM_HLPR_LOG_ERR("No event devices detected");
+ return -1;
+ }
+
+ for (i = 0; i < nb_eventdev; i++) {
+
+ /* Get the event dev conf */
+ eventdev_config = &(em_conf->eventdev_config[i]);
+
+ /* Read event device info */
+ ret = rte_event_dev_info_get(i, &dev_info);
+
+ if (ret < 0) {
+ RTE_EM_HLPR_LOG_ERR(
+ "Failed reading event device info (err:%d)",
+ ret);
+ return ret;
+ }
+
+ /* Check if enough ports are available */
+ if (dev_info.max_event_ports < 2) {
+ RTE_EM_HLPR_LOG_ERR("Not enough ports available");
+ return -1;
+ }
+
+ /* Save number of queues & ports available */
+ eventdev_config->eventdev_id = i;
+ eventdev_config->nb_eventqueue = dev_info.max_event_queues;
+ eventdev_config->nb_eventport = dev_info.max_event_ports;
+ eventdev_config->ev_queue_mode =
+ RTE_EVENT_QUEUE_CFG_SINGLE_LINK;
+
+ /* One port is required for eth_rx_adapter */
+ eventdev_config->nb_eventport -= 1;
+
+ /* One queue is reserved for the final ethernet tx stage */
+ eventdev_config->nb_eventqueue -= 1;
+
+ /* Update the number of eventdevs */
+ em_conf->nb_eventdev++;
+ }
+
+ return 0;
+}
+
+static int
rte_eventmode_helper_validate_conf(struct eventmode_conf *em_conf)
{
int ret;
@@ -205,6 +262,16 @@ rte_eventmode_helper_validate_conf(struct eventmode_conf
*em_conf)
if (ret != 0)
return ret;
+ /*
+ * See if event devs are specified. Else probe the event devices
+ * and initialize the conf with all ports & queues available
+ */
+ if (em_conf->nb_eventdev == 0) {
+ ret = rte_eventmode_helper_set_default_conf_eventdev(em_conf);
+ if (ret != 0)
+ return ret;
+ }
+
return 0;
}
--
2.7.4
