patches for DPDK stable branches
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* [dpdk-stable] [PATCH] event/dsw: immediately flush buffers on zero-sized enqueue
@ 2019-12-17 11:13 Mattias Rönnblom
  2020-01-14 17:24 ` [dpdk-stable] [EXT] " Jerin Jacob Kollanukkaran
  0 siblings, 1 reply; 2+ messages in thread
From: Mattias Rönnblom @ 2019-12-17 11:13 UTC (permalink / raw)
  To: jerinj; +Cc: dev, niclas.storm, Mattias Rönnblom, stable

Fix DSW's rte_event_enqueue_burst(), so that a call with a zero-sized
event array immediately flushes the port's output buffers. Prior to
this patch, the flush operation would be deferred to the next enqueue
or dequeue call, which is inconsistent with DSW documentation.

Fixes: 1c8e3caa3bfb ("event/dsw: add event scheduling and device start/stop")
Cc: stable@dpdk.org

Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
---
 drivers/event/dsw/dsw_event.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/event/dsw/dsw_event.c b/drivers/event/dsw/dsw_event.c
index 61a66fabf..1641c2d06 100644
--- a/drivers/event/dsw/dsw_event.c
+++ b/drivers/event/dsw/dsw_event.c
@@ -1047,6 +1047,7 @@ dsw_event_enqueue_burst_generic(void *port, const struct rte_event events[],
 	 */
 	if (unlikely(events_len == 0)) {
 		dsw_port_note_op(source_port, DSW_MAX_PORT_OPS_PER_BG_TASK);
+		dsw_port_flush_out_buffers(dsw, port);
 		return 0;
 	}
 
-- 
2.17.1


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2019-12-17 11:13 [dpdk-stable] [PATCH] event/dsw: immediately flush buffers on zero-sized enqueue Mattias Rönnblom
2020-01-14 17:24 ` [dpdk-stable] [EXT] " Jerin Jacob Kollanukkaran

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