patches for DPDK stable branches
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From: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
To: <jerinj@marvell.com>
Cc: <dev@dpdk.org>, <niclas.storm@ericsson.com>,
	Mattias Rönnblom <mattias.ronnblom@ericsson.com>,
	<stable@dpdk.org>
Subject: [dpdk-stable] [PATCH] event/dsw: immediately flush buffers on zero-sized enqueue
Date: Tue, 17 Dec 2019 12:13:44 +0100
Message-ID: <20191217111344.27468-1-mattias.ronnblom@ericsson.com> (raw)

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


             reply	other threads:[~2019-12-17 11:14 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-12-17 11:13 Mattias Rönnblom [this message]
2020-01-14 17:24 ` [dpdk-stable] [EXT] " Jerin Jacob Kollanukkaran
  -- strict thread matches above, loose matches on Subject: below --
2019-12-17 11:09 [dpdk-stable] " Mattias Rönnblom

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