eventdev: fix missing update to Rx adaper WRR position

After dequeuing Rx packets and enqueueing them to the
temporary buffer towards eventdev, the packet Rx loop exits
if the temporary buffer is full but the current WRR position
is not saved.

Save away the current value of the WRR position, so packets
are dequeued from the correct Rx queue in the next invocation.

Fixes: 9c38b704d280 ("eventdev: add eth Rx adapter implementation")
Cc: stable@dpdk.org
Suggested-by: Gage Eads <gage.eads@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>

diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.c b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
index 273df1e9b3d679b45a6f6e0d9ce1fc44d187132a..c2b5d4d83a9b3b22f0e379d227ed8a1f68227db3 100644 (file)
--- a/lib/librte_eventdev/rte_event_eth_rx_adapter.c
+++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
@@ -517,8 +517,10 @@ eth_rx_poll(struct rte_event_eth_rx_adapter *rx_adapter)
                 */
                if (buf->count >= BATCH_SIZE)
                        flush_event_buffer(rx_adapter);
-               if (BATCH_SIZE > (ETH_EVENT_BUFFER_SIZE - buf->count))
+               if (BATCH_SIZE > (ETH_EVENT_BUFFER_SIZE - buf->count)) {
+                       rx_adapter->wrr_pos = wrr_pos;
                        break;
+               }
 
                stats->rx_poll_count++;
                n = rte_eth_rx_burst(d, qid, mbufs, BATCH_SIZE);