[dpdk-stable] patch 'event/sw: fix xstats reset value' has been queued to LTS release 18.11.6

[Kevin Traynor]

Hi,

FYI, your patch has been queued to LTS release 18.11.6

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 12/10/19. 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/8d9963a6ff32f8bca6f87ecb2b82655b96b7c0ce

Thanks.

Kevin.

---
>From 8d9963a6ff32f8bca6f87ecb2b82655b96b7c0ce Mon Sep 17 00:00:00 2001
From: Gage Eads <gage.eads at intel.com>
Date: Tue, 27 Aug 2019 16:34:59 -0500
Subject: [PATCH] event/sw: fix xstats reset value

[ upstream commit d02c470c87976def34bae0307736ecb9c8cac9d8 ]

The sw PMD implements xstats reset by having the xstat get operations
return a value to the statistic's value at the last reset. The value at the
last reset is maintained in the per-xstat reset_value field, but the PMD
was setting reset_value = current - reset_value instead of reset_value =
current.

Fixes: c1ad03df7ad5 ("event/sw: support xstats")

Signed-off-by: Gage Eads <gage.eads at intel.com>
Acked-by: Harry van Haaren <harry.van.haaren at intel.com>
---
 drivers/event/sw/sw_evdev_xstats.c | 5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/event/sw/sw_evdev_xstats.c b/drivers/event/sw/sw_evdev_xstats.c
index 7a6caa64d..90664903b 100644
--- a/drivers/event/sw/sw_evdev_xstats.c
+++ b/drivers/event/sw/sw_evdev_xstats.c
@@ -492,5 +492,5 @@ sw_xstats_update(struct sw_evdev *sw, enum rte_event_dev_xstats_mode mode,
 
 		if (xs->reset_allowed && reset)
-			xs->reset_value = val;
+			xs->reset_value += val;
 
 		xidx++;
@@ -545,6 +545,5 @@ sw_xstats_reset_range(struct sw_evdev *sw, uint32_t start, uint32_t num)
 			continue;
 
-		uint64_t val = xs->fn(sw, xs->obj_idx, xs->stat, xs->extra_arg)
-					- xs->reset_value;
+		uint64_t val = xs->fn(sw, xs->obj_idx, xs->stat, xs->extra_arg);
 		xs->reset_value = val;
 	}
-- 
2.21.0

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2019-12-03 17:29:53.858161828 +0000
+++ 0035-event-sw-fix-xstats-reset-value.patch	2019-12-03 17:29:51.760749745 +0000
@@ -1 +1 @@
-From d02c470c87976def34bae0307736ecb9c8cac9d8 Mon Sep 17 00:00:00 2001
+From 8d9963a6ff32f8bca6f87ecb2b82655b96b7c0ce Mon Sep 17 00:00:00 2001
@@ -5,0 +6,2 @@
+[ upstream commit d02c470c87976def34bae0307736ecb9c8cac9d8 ]
+
@@ -13 +14,0 @@
-Cc: stable at dpdk.org