From: "Mattias Rönnblom" <hofors@lysator.liu.se>
To: jerinj@marvell.com
Cc: dev@dpdk.org, "Mattias Rönnblom" <mattias.ronnblom@ericsson.com>,
stable@dpdk.org,
"Venky Venkatesh" <vvenkatesh@paloaltonetworks.com>
Subject: [dpdk-dev] [PATCH v2] event/dsw: avoid reusing previously recorded events
Date: Mon, 4 May 2020 11:30:59 +0200 [thread overview]
Message-ID: <20200504093059.12458-1-hofors@lysator.liu.se> (raw)
From: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
Avoid reusing recorded events when performing a migration, since this
may make the migration selection logic pick an already-moved flow.
Fixes: f6257b22e767 ("event/dsw: add load balancing")
Cc: stable@dpdk.org
Reported-by: Venky Venkatesh <vvenkatesh@paloaltonetworks.com>
Signed-off-by: Mattias Rönnblom <mattias.ronnblom@ericsson.com>
---
V2: rebase
drivers/event/dsw/dsw_event.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/event/dsw/dsw_event.c b/drivers/event/dsw/dsw_event.c
index 832390373..367cf8590 100644
--- a/drivers/event/dsw/dsw_event.c
+++ b/drivers/event/dsw/dsw_event.c
@@ -821,6 +821,9 @@ dsw_port_consider_emigration(struct dsw_evdev *dsw,
if (dsw->num_ports == 1)
return;
+ if (seen_events_len < DSW_MAX_EVENTS_RECORDED)
+ return;
+
DSW_LOG_DP_PORT(DEBUG, source_port->id, "Considering emigration.\n");
/* Randomize interval to avoid having all threads considering
--
2.20.1
next reply other threads:[~2020-05-04 9:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-05-04 9:30 Mattias Rönnblom [this message]
2020-05-04 11:52 ` Jerin Jacob
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