X-Git-Url: http://git.droids-corp.org/?a=blobdiff_plain;ds=sidebyside;f=lib%2Flibrte_eventdev%2Frte_event_eth_rx_adapter.h;h=fc9da147f5b17b2385853eec6ae7d988f7217c0c;hb=8ddd6a90ea3cbd3724191984039c71de8b58d41b;hp=6a9e7edf6b36b69eb188bbd9068cb75e1a58ff28;hpb=dcc806c2638fa6d92630a2ba3d896cd3d52de565;p=dpdk.git

diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.h b/lib/librte_eventdev/rte_event_eth_rx_adapter.h
index 6a9e7edf6b..fc9da147f5 100644
--- a/lib/librte_eventdev/rte_event_eth_rx_adapter.h
+++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.h
@@ -47,7 +47,11 @@
  *
  * The adapter uses a EAL service core function for SW based packet transfer
  * and uses the eventdev PMD functions to configure HW based packet transfer
- * between the ethernet device and the event device.
+ * between the ethernet device and the event device. For SW based packet
+ * transfer, if the mbuf does not have a timestamp set, the adapter adds a
+ * timestamp to the mbuf using rte_get_tsc_cycles(), this provides a more
+ * accurate timestamp as compared to if the application were to set the time
+ * stamp since it avoids event device schedule latency.
  *
  * The ethernet Rx event adapter's functions are:
  *  - rte_event_eth_rx_adapter_create_ext()
@@ -321,6 +325,12 @@ int rte_event_eth_rx_adapter_free(uint8_t id);
  * @return
  *  - 0: Success, Receive queue added correctly.
  *  - <0: Error code on failure.
+ *  - (-EIO) device reconfiguration and restart error. The adapter reconfigures
+ *  the event device with an additional port if it is required to use a service
+ *  function for packet transfer from the ethernet device to the event device.
+ *  If the device had been started before this call, this error code indicates
+ *  an error in restart following an error in reconfiguration, i.e., a
+ *  combination of the two error codes.
  */
 int rte_event_eth_rx_adapter_queue_add(uint8_t id,
 			uint8_t eth_dev_id,