[dpdk-stable] patch 'event/dsw: flush buffers immediately on zero-sized enqueue' has been queued to LTS release 18.11.7

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.7

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 02/13/20. So please
shout if anyone has objections.

Also note that after the patch there's a diff of the upstream commit vs the
patch applied to the branch. This will indicate if there was any rebasing
needed to apply to the stable branch. If there were code changes for rebasing
(ie: not only metadata diffs), please double check that the rebase was
correctly done.

Queued patches are on a temporary branch at:
https://github.com/kevintraynor/dpdk-stable-queue

This queued commit can be viewed at:
https://github.com/kevintraynor/dpdk-stable-queue/commit/2bc50a1089a7c6085f8acc47d7d1c5a78b76fb62

Thanks.

Kevin.

---
>From 2bc50a1089a7c6085f8acc47d7d1c5a78b76fb62 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Mattias=20R=C3=B6nnblom?= <mattias.ronnblom at ericsson.com>
Date: Tue, 17 Dec 2019 12:13:44 +0100
Subject: [PATCH] event/dsw: flush buffers immediately on zero-sized enqueue
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

[ upstream commit 5747c83257306ad8e546e456fcfe8e89dac48bf9 ]

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")

Signed-off-by: Mattias Rönnblom <mattias.ronnblom at 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 61a66fabf3..1641c2d06e 100644
--- a/drivers/event/dsw/dsw_event.c
+++ b/drivers/event/dsw/dsw_event.c
@@ -1048,4 +1048,5 @@ 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;
 	}
-- 
2.21.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-02-07 15:08:18.005769784 +0000
+++ 0009-event-dsw-flush-buffers-immediately-on-zero-sized-en.patch	2020-02-07 15:08:17.494063215 +0000
@@ -1 +1 @@
-From 5747c83257306ad8e546e456fcfe8e89dac48bf9 Mon Sep 17 00:00:00 2001
+From 2bc50a1089a7c6085f8acc47d7d1c5a78b76fb62 Mon Sep 17 00:00:00 2001
@@ -8,0 +9,2 @@
+[ upstream commit 5747c83257306ad8e546e456fcfe8e89dac48bf9 ]
+
@@ -15 +16,0 @@
-Cc: stable at dpdk.org