From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: <hemant.agrawal@nxp.com> Received: from inva021.nxp.com (inva021.nxp.com [92.121.34.21]) by dpdk.org (Postfix) with ESMTP id 9F01B559A for <dev@dpdk.org>; Tue, 18 Sep 2018 15:34:07 +0200 (CEST) Received: from inva021.nxp.com (localhost [127.0.0.1]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 84BF9200037; Tue, 18 Sep 2018 15:34:07 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva021.eu-rdc02.nxp.com (Postfix) with ESMTP id 6986320000D; Tue, 18 Sep 2018 15:34:05 +0200 (CEST) Received: from bf-netperf1.ap.freescale.net (bf-netperf1.ap.freescale.net [10.232.134.28]) by invc005.ap-rdc01.nxp.com (Postfix) with ESMTP id 250FF4031D; Tue, 18 Sep 2018 21:34:02 +0800 (SGT) From: Hemant Agrawal <hemant.agrawal@nxp.com> To: dev@dpdk.org, thomas@monjalon.net, ferruh.yigit@intel.com Date: Tue, 18 Sep 2018 19:01:54 +0530 Message-Id: <1537277516-8876-12-git-send-email-hemant.agrawal@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1537277516-8876-1-git-send-email-hemant.agrawal@nxp.com> References: <1535539660-20228-2-git-send-email-hemant.agrawal@nxp.com> <1537277516-8876-1-git-send-email-hemant.agrawal@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Subject: [dpdk-dev] [PATCH v2 11/13] net/dpaa: tune prefetch in Rx path X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 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> X-List-Received-Date: Tue, 18 Sep 2018 13:34:08 -0000 As part of performance optimization excercise, tuning the prefetch placement. Signed-off-by: Hemant Agrawal <hemant.agrawal@nxp.com> --- drivers/net/dpaa/dpaa_rxtx.c | 7 +++---- 1 file changed, 3 insertions(+), 4 deletions(-) diff --git a/drivers/net/dpaa/dpaa_rxtx.c b/drivers/net/dpaa/dpaa_rxtx.c index 2c57741..c4471c2 100644 --- a/drivers/net/dpaa/dpaa_rxtx.c +++ b/drivers/net/dpaa/dpaa_rxtx.c @@ -370,10 +370,6 @@ dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid) if (unlikely(format == qm_fd_sg)) return dpaa_eth_sg_to_mbuf(fd, ifid); - ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd)); - - rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF)); - offset = (fd->opaque & DPAA_FD_OFFSET_MASK) >> DPAA_FD_OFFSET_SHIFT; length = fd->opaque & DPAA_FD_LENGTH_MASK; @@ -381,8 +377,11 @@ dpaa_eth_fd_to_mbuf(const struct qm_fd *fd, uint32_t ifid) /* Ignoring case when format != qm_fd_contig */ dpaa_display_frame(fd); + ptr = DPAA_MEMPOOL_PTOV(bp_info, qm_fd_addr(fd)); mbuf = (struct rte_mbuf *)((char *)ptr - bp_info->meta_data_size); + /* Prefetch the Parse results and packet data to L1 */ + rte_prefetch0((void *)((uint8_t *)ptr + DEFAULT_RX_ICEOF)); mbuf->data_off = offset; mbuf->data_len = length; -- 2.7.4