[dpdk-stable] patch 'event/dpaa2: remove link from info structure' has been queued to stable release 18.02.2

[luca.boccassi at gmail.com]

Hi,

FYI, your patch has been queued to stable release 18.02.2

Note it hasn't been pushed to http://dpdk.org/browse/dpdk-stable yet.
It will be pushed if I get no objections before 05/16/18. So please
shout if anyone has objections.

Thanks.

Luca Boccassi

---
>From be6aa9f7e6450f36e131a0c52a2b6633a14e20b8 Mon Sep 17 00:00:00 2001
From: Ashish Jain <ashish.jain at nxp.com>
Date: Wed, 9 May 2018 14:50:53 +0530
Subject: [PATCH] event/dpaa2: remove link from info structure

[ upstream commit 64f5de4194f89390c01ca137185f395ae2a95681 ]

Removing use of link data under evq_info_t structure which was
used to check whether the the associated evq has been linked
or not. Since, an evq can be linked to multiple event ports,
thus setting the link variable only allowed the first event
port to be associated with the evq. This led to huge performance
drop in case of multiple event ports as I/O only worked on
first event port associated with the evq.

Fixes: 0ce3ce7c275c ("event/dpaa2: add configuration functions")

Signed-off-by: Ashish Jain <ashish.jain at nxp.com>
Acked-by: Hemant Agrawal <hemant.agrawal at nxp.com>
---
 drivers/event/dpaa2/dpaa2_eventdev.c | 5 -----
 drivers/event/dpaa2/dpaa2_eventdev.h | 1 -
 2 files changed, 6 deletions(-)

diff --git a/drivers/event/dpaa2/dpaa2_eventdev.c b/drivers/event/dpaa2/dpaa2_eventdev.c
index 977e8df85..9d5acb374 100644
--- a/drivers/event/dpaa2/dpaa2_eventdev.c
+++ b/drivers/event/dpaa2/dpaa2_eventdev.c
@@ -459,7 +459,6 @@ dpaa2_eventdev_port_unlink(struct rte_eventdev *dev, void *port,
 		dpio_remove_static_dequeue_channel(dpaa2_portal->dpio_dev->dpio,
 					0, dpaa2_portal->dpio_dev->token,
 			evq_info->dpcon->dpcon_id);
-		evq_info->link = 0;
 	}
 
 	return (int)nb_unlinks;
@@ -480,8 +479,6 @@ dpaa2_eventdev_port_link(struct rte_eventdev *dev, void *port,
 
 	for (i = 0; i < nb_links; i++) {
 		evq_info = &priv->evq_info[queues[i]];
-		if (evq_info->link)
-			continue;
 
 		ret = dpio_add_static_dequeue_channel(
 			dpaa2_portal->dpio_dev->dpio,
@@ -496,7 +493,6 @@ dpaa2_eventdev_port_link(struct rte_eventdev *dev, void *port,
 		qbman_swp_push_set(dpaa2_portal->dpio_dev->sw_portal,
 				   channel_index, 1);
 		evq_info->dpcon->channel_index = channel_index;
-		evq_info->link = 1;
 	}
 
 	RTE_SET_USED(priorities);
@@ -510,7 +506,6 @@ err:
 		dpio_remove_static_dequeue_channel(dpaa2_portal->dpio_dev->dpio,
 					0, dpaa2_portal->dpio_dev->token,
 			evq_info->dpcon->dpcon_id);
-		evq_info->link = 0;
 	}
 	return ret;
 }
diff --git a/drivers/event/dpaa2/dpaa2_eventdev.h b/drivers/event/dpaa2/dpaa2_eventdev.h
index 91c8f2a35..229f66afb 100644
--- a/drivers/event/dpaa2/dpaa2_eventdev.h
+++ b/drivers/event/dpaa2/dpaa2_eventdev.h
@@ -63,7 +63,6 @@ struct evq_info_t {
 	struct dpaa2_dpci_dev *dpci;
 	/* Configuration provided by the user */
 	uint32_t event_queue_cfg;
-	uint8_t link;
 };
 
 struct dpaa2_eventdev {
-- 
2.14.2