From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <dev-bounces@dpdk.org>
Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124])
	by inbox.dpdk.org (Postfix) with ESMTP id AEFD943F6C;
	Thu,  2 May 2024 22:49:26 +0200 (CEST)
Received: from mails.dpdk.org (localhost [127.0.0.1])
	by mails.dpdk.org (Postfix) with ESMTP id 174C5402DA;
	Thu,  2 May 2024 22:49:22 +0200 (CEST)
Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.11])
 by mails.dpdk.org (Postfix) with ESMTP id 306F1402B2;
 Thu,  2 May 2024 22:49:19 +0200 (CEST)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple;
 d=intel.com; i=@intel.com; q=dns/txt; s=Intel;
 t=1714682959; x=1746218959;
 h=from:to:cc:subject:date:message-id:in-reply-to:
 references:mime-version:content-transfer-encoding;
 bh=X7H3n+cfp1WvAjJNy7V3T+W2CzpJGrVwOIkX8OushEs=;
 b=JI1QlSSlJ38VubeADPduZbcFnx2tFjRwain33c6x9DmqpZ/Fy4wVDnE2
 jrQB6U037/iE7cExaooaBFRnuIi9RwTs+HhFuNaXUNo1PCZw91QA+02ms
 AqJpeg4Iasj34ULnggChZhSHV/HilvNKC2wNbiWrn/LhWeV1jsW0pH5+X
 XxfGthl+6BYKrpSxU8Rxei/X1+Ccf7q5m+o5W5yD1kBbi8kfsk6qEkEJK
 NTvgiouT5q72nSTMeHxSCzWDl+jt1SPrdV8qmSpnH+wHtfOe2l67Y3bgW
 HRfWwFH2x3+IJbuIcFilYOGO5YAeNzS/p5Lbc/5wayh2xNTDJD3RnPfwa g==;
X-CSE-ConnectionGUID: Pup8fYqYTFmz3bj4KLjEng==
X-CSE-MsgGUID: IOxd7fsCTF60PK7TK8oYkA==
X-IronPort-AV: E=McAfee;i="6600,9927,11062"; a="21032746"
X-IronPort-AV: E=Sophos;i="6.07,247,1708416000"; d="scan'208";a="21032746"
Received: from orviesa008.jf.intel.com ([10.64.159.148])
 by orvoesa103.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384;
 02 May 2024 13:49:18 -0700
X-CSE-ConnectionGUID: E7sj/XEzSHq+VdOjgfFnzQ==
X-CSE-MsgGUID: WlD/rIk0T5O4YDHPYv2WeA==
X-ExtLoop1: 1
X-IronPort-AV: E=Sophos;i="6.07,247,1708416000"; d="scan'208";a="27838115"
Received: from unknown (HELO csl-npg-qt0.la.intel.com) ([10.233.181.103])
 by orviesa008.jf.intel.com with ESMTP; 02 May 2024 13:49:18 -0700
From: Hernan Vargas <hernan.vargas@intel.com>
To: dev@dpdk.org, gakhil@marvell.com, trix@redhat.com,
 maxime.coquelin@redhat.com
Cc: nicolas.chautru@intel.com, qi.z.zhang@intel.com,
 Hernan Vargas <hernan.vargas@intel.com>, stable@dpdk.org
Subject: [PATCH v2 1/5] baseband/acc: fix memory barrier
Date: Thu,  2 May 2024 13:45:44 -0700
Message-Id: <20240502204548.236729-2-hernan.vargas@intel.com>
X-Mailer: git-send-email 2.37.1
In-Reply-To: <20240502204548.236729-1-hernan.vargas@intel.com>
References: <20240502204548.236729-1-hernan.vargas@intel.com>
MIME-Version: 1.0
Content-Transfer-Encoding: 8bit
X-BeenThere: dev@dpdk.org
X-Mailman-Version: 2.1.29
Precedence: list
List-Id: DPDK patches and discussions <dev.dpdk.org>
List-Unsubscribe: <https://mails.dpdk.org/options/dev>,
 <mailto:dev-request@dpdk.org?subject=unsubscribe>
List-Archive: <http://mails.dpdk.org/archives/dev/>
List-Post: <mailto:dev@dpdk.org>
List-Help: <mailto:dev-request@dpdk.org?subject=help>
List-Subscribe: <https://mails.dpdk.org/listinfo/dev>,
 <mailto:dev-request@dpdk.org?subject=subscribe>
Errors-To: dev-bounces@dpdk.org

Moving memory barrier so that dequeue thread can be in sync with enqueue
thread.

Fixes: 32e8b7ea35dd ("baseband/acc100: refactor to segregate common code")
Cc: stable@dpdk.org

Signed-off-by: Hernan Vargas <hernan.vargas@intel.com>
---
 drivers/baseband/acc/acc_common.h | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/baseband/acc/acc_common.h b/drivers/baseband/acc/acc_common.h
index fddeb0737b8b..e249f37e38fe 100644
--- a/drivers/baseband/acc/acc_common.h
+++ b/drivers/baseband/acc/acc_common.h
@@ -1112,6 +1112,9 @@ acc_dma_enqueue(struct acc_queue *q, uint16_t n,
 				req_elem_addr,
 				(void *)q->mmio_reg_enqueue);
 
+		q->aq_enqueued++;
+		q->sw_ring_head += enq_batch_size;
+
 		rte_wmb();
 
 		/* Start time measurement for enqueue function offload. */
@@ -1122,8 +1125,6 @@ acc_dma_enqueue(struct acc_queue *q, uint16_t n,
 
 		queue_stats->acc_offload_cycles += rte_rdtsc_precise() - start_time;
 
-		q->aq_enqueued++;
-		q->sw_ring_head += enq_batch_size;
 		n -= enq_batch_size;
 
 	} while (n);
-- 
2.37.1