From patchwork Wed Apr 13 10:31:54 2022 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Ruifeng Wang X-Patchwork-Id: 109692 X-Patchwork-Delegate: ajit.khaparde@broadcom.com Return-Path: X-Original-To: patchwork@inbox.dpdk.org Delivered-To: patchwork@inbox.dpdk.org Received: from mails.dpdk.org (mails.dpdk.org [217.70.189.124]) by inbox.dpdk.org (Postfix) with ESMTP id 5002FA050A; Wed, 13 Apr 2022 12:32:29 +0200 (CEST) Received: from [217.70.189.124] (localhost [127.0.0.1]) by mails.dpdk.org (Postfix) with ESMTP id 3FF724068B; Wed, 13 Apr 2022 12:32:29 +0200 (CEST) Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by mails.dpdk.org (Postfix) with ESMTP id E565A4068B for ; Wed, 13 Apr 2022 12:32:27 +0200 (CEST) Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 61CB61570; Wed, 13 Apr 2022 03:32:27 -0700 (PDT) Received: from net-arm-n1amp-02.shanghai.arm.com (net-arm-n1amp-02.shanghai.arm.com [10.169.210.142]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPA id 266553F73B; Wed, 13 Apr 2022 03:32:24 -0700 (PDT) From: Ruifeng Wang To: ajit.khaparde@broadcom.com, somnath.kotur@broadcom.com Cc: dev@dpdk.org, honnappa.nagarahalli@arm.com, nd@arm.com, Ruifeng Wang Subject: [PATCH 1/3] net/bnxt: defer completion index update Date: Wed, 13 Apr 2022 18:31:54 +0800 Message-Id: <20220413103156.3680600-2-ruifeng.wang@arm.com> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20220413103156.3680600-1-ruifeng.wang@arm.com> References: <20220413103156.3680600-1-ruifeng.wang@arm.com> MIME-Version: 1.0 X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: DPDK patches and discussions List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: dev-bounces@dpdk.org When no packet is received, there is no need to update completion raw cons. Moved update down to remove unnecessary store in this case. Signed-off-by: Ruifeng Wang --- drivers/net/bnxt/bnxt_rxr.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/bnxt/bnxt_rxr.c b/drivers/net/bnxt/bnxt_rxr.c index 5a9cf48e67..49b9f0aed4 100644 --- a/drivers/net/bnxt/bnxt_rxr.c +++ b/drivers/net/bnxt/bnxt_rxr.c @@ -1096,7 +1096,6 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, break; } - cpr->cp_raw_cons = raw_cons; if (!nb_rx_pkts && !nb_rep_rx_pkts && !evt) { /* * For PMD, there is no need to keep on pushing to REARM @@ -1105,6 +1104,7 @@ uint16_t bnxt_recv_pkts(void *rx_queue, struct rte_mbuf **rx_pkts, goto done; } + cpr->cp_raw_cons = raw_cons; /* Ring the completion queue doorbell. */ bnxt_db_cq(cpr);