[dpdk-stable] patch 'examples/l2fwd-event: fix event device config' has been queued to stable release 19.11.1

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 19.11.1

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.

Thanks.

Luca Boccassi

---
>From 807a4bdc1f226f474d3b995b42289cb8a7fd081c Mon Sep 17 00:00:00 2001
From: Pavan Nikhilesh <pbhagavatula at marvell.com>
Date: Fri, 20 Dec 2019 19:57:41 +0530
Subject: [PATCH] examples/l2fwd-event: fix event device config

[ upstream commit 345a22d5ec1ab70e9d965ae50558049e6c0f2f8d ]

Always enable implicit release since we don't support explicit release
in datapath.
Master lcore is used only for printing stats so don't allocate event
port for it.
Fix service launch for event device without distributed scheduling.

Fixes: bcb6f841d42a ("examples/l2fwd-event: setup service core")

Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
---
 examples/l2fwd-event/l2fwd_event.c               |  2 +-
 examples/l2fwd-event/l2fwd_event_generic.c       |  9 ++++++---
 examples/l2fwd-event/l2fwd_event_internal_port.c | 11 +++++------
 3 files changed, 12 insertions(+), 10 deletions(-)

diff --git a/examples/l2fwd-event/l2fwd_event.c b/examples/l2fwd-event/l2fwd_event.c
index 0379c580d6..38d590c14c 100644
--- a/examples/l2fwd-event/l2fwd_event.c
+++ b/examples/l2fwd-event/l2fwd_event.c
@@ -67,7 +67,7 @@ l2fwd_event_service_setup(struct l2fwd_resources *rsrc)
 	int ret, i;
 
 	rte_event_dev_info_get(evt_rsrc->event_d_id, &evdev_info);
-	if (evdev_info.event_dev_cap  & RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED) {
+	if (!(evdev_info.event_dev_cap & RTE_EVENT_DEV_CAP_DISTRIBUTED_SCHED)) {
 		ret = rte_event_dev_service_id_get(evt_rsrc->event_d_id,
 				&service_id);
 		if (ret != -ESRCH && ret != 0)
diff --git a/examples/l2fwd-event/l2fwd_event_generic.c b/examples/l2fwd-event/l2fwd_event_generic.c
index b7e467c1e1..b07306a17b 100644
--- a/examples/l2fwd-event/l2fwd_event_generic.c
+++ b/examples/l2fwd-event/l2fwd_event_generic.c
@@ -42,8 +42,10 @@ l2fwd_event_device_setup_generic(struct l2fwd_resources *rsrc)
 
 	/* Event device configurtion */
 	rte_event_dev_info_get(event_d_id, &dev_info);
-	evt_rsrc->disable_implicit_release = !!(dev_info.event_dev_cap &
-				    RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE);
+
+	/* Enable implicit release */
+	if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE)
+		evt_rsrc->disable_implicit_release = 0;
 
 	if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES)
 		event_queue_cfg |= RTE_EVENT_QUEUE_CFG_ALL_TYPES;
@@ -70,7 +72,8 @@ l2fwd_event_device_setup_generic(struct l2fwd_resources *rsrc)
 		event_d_conf.nb_event_port_enqueue_depth =
 				dev_info.max_event_port_enqueue_depth;
 
-	num_workers = rte_lcore_count() - rte_service_lcore_count();
+	/* Ignore Master core and service cores. */
+	num_workers = rte_lcore_count() - 1 - rte_service_lcore_count();
 	if (dev_info.max_event_ports < num_workers)
 		num_workers = dev_info.max_event_ports;
 
diff --git a/examples/l2fwd-event/l2fwd_event_internal_port.c b/examples/l2fwd-event/l2fwd_event_internal_port.c
index b382763dd9..5e6e8598af 100644
--- a/examples/l2fwd-event/l2fwd_event_internal_port.c
+++ b/examples/l2fwd-event/l2fwd_event_internal_port.c
@@ -27,7 +27,6 @@ l2fwd_event_device_setup_internal_port(struct l2fwd_resources *rsrc)
 		.nb_event_port_enqueue_depth = 128
 	};
 	struct rte_event_dev_info dev_info;
-	uint8_t disable_implicit_release;
 	const uint8_t event_d_id = 0; /* Always use first event device only */
 	uint32_t event_queue_cfg = 0;
 	uint16_t ethdev_count = 0;
@@ -44,10 +43,9 @@ l2fwd_event_device_setup_internal_port(struct l2fwd_resources *rsrc)
 	/* Event device configurtion */
 	rte_event_dev_info_get(event_d_id, &dev_info);
 
-	disable_implicit_release = !!(dev_info.event_dev_cap &
-				    RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE);
-	evt_rsrc->disable_implicit_release =
-						disable_implicit_release;
+	/* Enable implicit release */
+	if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_IMPLICIT_RELEASE_DISABLE)
+		evt_rsrc->disable_implicit_release = 0;
 
 	if (dev_info.event_dev_cap & RTE_EVENT_DEV_CAP_QUEUE_ALL_TYPES)
 		event_queue_cfg |= RTE_EVENT_QUEUE_CFG_ALL_TYPES;
@@ -73,7 +71,8 @@ l2fwd_event_device_setup_internal_port(struct l2fwd_resources *rsrc)
 		event_d_conf.nb_event_port_enqueue_depth =
 				dev_info.max_event_port_enqueue_depth;
 
-	num_workers = rte_lcore_count();
+	/* Ignore Master core. */
+	num_workers = rte_lcore_count() - 1;
 	if (dev_info.max_event_ports < num_workers)
 		num_workers = dev_info.max_event_ports;
 
-- 
2.20.1

---
  Diff of the applied patch vs upstream commit (please double-check if non-empty:
---
--- -	2020-02-11 11:17:39.634284000 +0000
+++ 0016-examples-l2fwd-event-fix-event-device-config.patch	2020-02-11 11:17:38.311999701 +0000
@@ -1,8 +1,10 @@
-From 345a22d5ec1ab70e9d965ae50558049e6c0f2f8d Mon Sep 17 00:00:00 2001
+From 807a4bdc1f226f474d3b995b42289cb8a7fd081c Mon Sep 17 00:00:00 2001
 From: Pavan Nikhilesh <pbhagavatula at marvell.com>
 Date: Fri, 20 Dec 2019 19:57:41 +0530
 Subject: [PATCH] examples/l2fwd-event: fix event device config
 
+[ upstream commit 345a22d5ec1ab70e9d965ae50558049e6c0f2f8d ]
+
 Always enable implicit release since we don't support explicit release
 in datapath.
 Master lcore is used only for printing stats so don't allocate event
@@ -10,7 +12,6 @@
 Fix service launch for event device without distributed scheduling.
 
 Fixes: bcb6f841d42a ("examples/l2fwd-event: setup service core")
-Cc: stable at dpdk.org
 
 Signed-off-by: Pavan Nikhilesh <pbhagavatula at marvell.com>
 ---