From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from inva020.nxp.com (inva020.nxp.com [92.121.34.13]) by dpdk.org (Postfix) with ESMTP id 0EEE95592 for ; Fri, 21 Sep 2018 13:08:14 +0200 (CEST) Received: from inva020.nxp.com (localhost [127.0.0.1]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id E94E21A02BE; Fri, 21 Sep 2018 13:08:13 +0200 (CEST) Received: from invc005.ap-rdc01.nxp.com (invc005.ap-rdc01.nxp.com [165.114.16.14]) by inva020.eu-rdc02.nxp.com (Postfix) with ESMTP id 15B611A02C2; Fri, 21 Sep 2018 13:08:12 +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 C1B9A402E6; Fri, 21 Sep 2018 19:08:08 +0800 (SGT) From: Hemant Agrawal To: dev@dpdk.org, thomas@monjalon.net, ferruh.yigit@intel.com Date: Fri, 21 Sep 2018 16:36:00 +0530 Message-Id: <1537527962-25757-12-git-send-email-hemant.agrawal@nxp.com> X-Mailer: git-send-email 2.7.4 In-Reply-To: <1537527962-25757-1-git-send-email-hemant.agrawal@nxp.com> References: <1537277516-8876-2-git-send-email-hemant.agrawal@nxp.com> <1537527962-25757-1-git-send-email-hemant.agrawal@nxp.com> X-Virus-Scanned: ClamAV using ClamSMTP Subject: [dpdk-dev] [PATCH v3 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 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 21 Sep 2018 11:08:14 -0000 As part of performance optimization excercise, tuning the prefetch placement. Signed-off-by: Hemant Agrawal --- 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