[dpdk-stable] patch 'eventdev: fix missing update to Rx adaper WRR position' has been queued to LTS release 17.11.4

[Yongseok Koh <yskoh@mellanox.com>]

Hi,

FYI, your patch has been queued to LTS release 17.11.4

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 07/28/18. So please
shout if anyone has objections.

Thanks.

Yongseok

---
>From cff559723897834275579fce43e5ff8b420a8eff Mon Sep 17 00:00:00 2001
From: Nikhil Rao <nikhil.rao@intel.com>
Date: Sun, 3 Jun 2018 17:11:08 +0530
Subject: [PATCH] eventdev: fix missing update to Rx adaper WRR position

[ upstream commit 524dc20023b2e00cd9a021ae60cb4b91f51786e6 ]

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")

Suggested-by: Gage Eads <gage.eads@intel.com>
Signed-off-by: Nikhil Rao <nikhil.rao@intel.com>
---
 lib/librte_eventdev/rte_event_eth_rx_adapter.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/lib/librte_eventdev/rte_event_eth_rx_adapter.c b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
index f62972545..1cdbb848b 100644
--- a/lib/librte_eventdev/rte_event_eth_rx_adapter.c
+++ b/lib/librte_eventdev/rte_event_eth_rx_adapter.c
@@ -503,8 +503,10 @@ 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);
-- 
2.11.0