From patchwork Fri Mar 15 06:22:51 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Wenzhuo Lu X-Patchwork-Id: 51213 X-Patchwork-Delegate: qi.z.zhang@intel.com Return-Path: X-Original-To: patchwork@dpdk.org Delivered-To: patchwork@dpdk.org Received: from [92.243.14.124] (localhost [127.0.0.1]) by dpdk.org (Postfix) with ESMTP id 6F14B4CC7; Fri, 15 Mar 2019 07:17:41 +0100 (CET) Received: from mga06.intel.com (mga06.intel.com [134.134.136.31]) by dpdk.org (Postfix) with ESMTP id 9177011A4 for ; Fri, 15 Mar 2019 07:17:34 +0100 (CET) X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from fmsmga008.fm.intel.com ([10.253.24.58]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 14 Mar 2019 23:17:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.58,481,1544515200"; d="scan'208";a="131827215" Received: from dpdk26.sh.intel.com ([10.67.110.164]) by fmsmga008.fm.intel.com with ESMTP; 14 Mar 2019 23:17:33 -0700 From: Wenzhuo Lu To: dev@dpdk.org Cc: Wenzhuo Lu Date: Fri, 15 Mar 2019 14:22:51 +0800 Message-Id: <1552630975-62900-5-git-send-email-wenzhuo.lu@intel.com> X-Mailer: git-send-email 1.9.3 In-Reply-To: <1552630975-62900-1-git-send-email-wenzhuo.lu@intel.com> References: <1551340136-83843-1-git-send-email-wenzhuo.lu@intel.com> <1552630975-62900-1-git-send-email-wenzhuo.lu@intel.com> Subject: [dpdk-dev] [PATCH v3 4/8] net/ice: support Rx scatter SSE vector 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: , Errors-To: dev-bounces@dpdk.org Sender: "dev" Signed-off-by: Wenzhuo Lu --- drivers/net/ice/ice_rxtx.c | 16 +++++++++++---- drivers/net/ice/ice_rxtx.h | 2 ++ drivers/net/ice/ice_rxtx_vec_sse.c | 41 ++++++++++++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+), 4 deletions(-) diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c index 8694872..6529ae5 100644 --- a/drivers/net/ice/ice_rxtx.c +++ b/drivers/net/ice/ice_rxtx.c @@ -1494,7 +1494,8 @@ #ifdef RTE_LIBRTE_ICE_INC_VECTOR #ifdef RTE_ARCH_X86 - if (dev->rx_pkt_burst == ice_recv_pkts_vec) + if (dev->rx_pkt_burst == ice_recv_pkts_vec || + dev->rx_pkt_burst == ice_recv_scattered_pkts_vec) return ptypes; #endif #endif @@ -2244,9 +2245,16 @@ void __attribute__((cold)) rxq = dev->data->rx_queues[i]; (void)ice_rxq_vec_setup(rxq); } - PMD_DRV_LOG(DEBUG, "Using Vector Rx (port %d).", - dev->data->port_id); - dev->rx_pkt_burst = ice_recv_pkts_vec; + if (dev->data->scattered_rx) { + PMD_DRV_LOG(DEBUG, + "Using Vector Scattered Rx (port %d).", + dev->data->port_id); + dev->rx_pkt_burst = ice_recv_scattered_pkts_vec; + } else { + PMD_DRV_LOG(DEBUG, "Using Vector Rx (port %d).", + dev->data->port_id); + dev->rx_pkt_burst = ice_recv_pkts_vec; + } return; } diff --git a/drivers/net/ice/ice_rxtx.h b/drivers/net/ice/ice_rxtx.h index 2659176..aab4a3a 100644 --- a/drivers/net/ice/ice_rxtx.h +++ b/drivers/net/ice/ice_rxtx.h @@ -176,5 +176,7 @@ void ice_txq_info_get(struct rte_eth_dev *dev, uint16_t queue_id, int ice_rxq_vec_setup(struct ice_rx_queue *rxq); uint16_t ice_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, uint16_t nb_pkts); +uint16_t ice_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts); #endif #endif /* _ICE_RXTX_H_ */ diff --git a/drivers/net/ice/ice_rxtx_vec_sse.c b/drivers/net/ice/ice_rxtx_vec_sse.c index d444be9..789cf07 100644 --- a/drivers/net/ice/ice_rxtx_vec_sse.c +++ b/drivers/net/ice/ice_rxtx_vec_sse.c @@ -464,6 +464,47 @@ return _recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL); } +/* vPMD receive routine that reassembles scattered packets + * Notice: + * - nb_pkts < ICE_DESCS_PER_LOOP, just return no packet + * - nb_pkts > ICE_VPMD_RX_BURST, only scan ICE_VPMD_RX_BURST + * numbers of DD bits + */ +uint16_t +ice_recv_scattered_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts, + uint16_t nb_pkts) +{ + struct ice_rx_queue *rxq = rx_queue; + uint8_t split_flags[ICE_VPMD_RX_BURST] = {0}; + + /* get some new buffers */ + uint16_t nb_bufs = _recv_raw_pkts_vec(rxq, rx_pkts, nb_pkts, + split_flags); + if (nb_bufs == 0) + return 0; + + /* happy day case, full burst + no packets to be joined */ + const uint64_t *split_fl64 = (uint64_t *)split_flags; + + if (!rxq->pkt_first_seg && + split_fl64[0] == 0 && split_fl64[1] == 0 && + split_fl64[2] == 0 && split_fl64[3] == 0) + return nb_bufs; + + /* reassemble any packets that need reassembly*/ + unsigned i = 0; + + if (!rxq->pkt_first_seg) { + /* find the first split flag, and only reassemble then*/ + while (i < nb_bufs && !split_flags[i]) + i++; + if (i == nb_bufs) + return nb_bufs; + } + return i + reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i, + &split_flags[i]); +} + static void __attribute__((cold)) ice_rx_queue_release_mbufs_vec(struct ice_rx_queue *rxq) {