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GET /api/patches/8062/?format=api
{ "id": 8062, "url": "https://patches.dpdk.org/api/patches/8062/?format=api", "web_url": "https://patches.dpdk.org/project/dpdk/patch/1445939209-12783-9-git-send-email-jing.d.chen@intel.com/", "project": { "id": 1, "url": "https://patches.dpdk.org/api/projects/1/?format=api", "name": "DPDK", "link_name": "dpdk", "list_id": "dev.dpdk.org", "list_email": "dev@dpdk.org", "web_url": "http://core.dpdk.org", "scm_url": "git://dpdk.org/dpdk", "webscm_url": "http://git.dpdk.org/dpdk", "list_archive_url": "https://inbox.dpdk.org/dev", "list_archive_url_format": "https://inbox.dpdk.org/dev/{}", "commit_url_format": "" }, "msgid": "<1445939209-12783-9-git-send-email-jing.d.chen@intel.com>", "list_archive_url": "https://inbox.dpdk.org/dev/1445939209-12783-9-git-send-email-jing.d.chen@intel.com", "date": "2015-10-27T09:46:41", "name": "[dpdk-dev,v3,08/16] fm10k: add Vector RX scatter function", "commit_ref": null, "pull_url": null, "state": "superseded", "archived": true, "hash": "684836563c026efb9be97f8ae1d5f24f7932465e", "submitter": { "id": 40, "url": "https://patches.dpdk.org/api/people/40/?format=api", "name": "Chen, Jing D", "email": "jing.d.chen@intel.com" }, "delegate": null, "mbox": "https://patches.dpdk.org/project/dpdk/patch/1445939209-12783-9-git-send-email-jing.d.chen@intel.com/mbox/", "series": [], "comments": "https://patches.dpdk.org/api/patches/8062/comments/", "check": "pending", "checks": "https://patches.dpdk.org/api/patches/8062/checks/", "tags": {}, "related": [], "headers": { "Return-Path": "<dev-bounces@dpdk.org>", "X-Original-To": "patchwork@dpdk.org", "Delivered-To": "patchwork@dpdk.org", "Received": [ "from [92.243.14.124] (localhost [IPv6:::1])\n\tby dpdk.org (Postfix) with ESMTP id 81D148E9A;\n\tTue, 27 Oct 2015 10:47:42 +0100 (CET)", "from mga03.intel.com (mga03.intel.com [134.134.136.65])\n\tby dpdk.org (Postfix) with ESMTP id 89B945A56\n\tfor <dev@dpdk.org>; Tue, 27 Oct 2015 10:47:40 +0100 (CET)", "from fmsmga003.fm.intel.com ([10.253.24.29])\n\tby orsmga103.jf.intel.com with ESMTP; 27 Oct 2015 02:47:15 -0700", "from shvmail01.sh.intel.com ([10.239.29.42])\n\tby FMSMGA003.fm.intel.com with ESMTP; 27 Oct 2015 02:47:14 -0700", "from shecgisg004.sh.intel.com (shecgisg004.sh.intel.com\n\t[10.239.29.89])\n\tby shvmail01.sh.intel.com with ESMTP id t9R9lB6u030954;\n\tTue, 27 Oct 2015 17:47:11 +0800", "from shecgisg004.sh.intel.com (localhost [127.0.0.1])\n\tby shecgisg004.sh.intel.com (8.13.6/8.13.6/SuSE Linux 0.8) with ESMTP\n\tid t9R9l925013026; Tue, 27 Oct 2015 17:47:11 +0800", "(from jingche2@localhost)\n\tby shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t9R9l9AE013022; \n\tTue, 27 Oct 2015 17:47:09 +0800" ], "X-ExtLoop1": "1", "X-IronPort-AV": "E=Sophos;i=\"5.20,204,1444719600\"; d=\"scan'208\";a=\"588790803\"", "From": "\"Chen Jing D(Mark)\" <jing.d.chen@intel.com>", "To": "dev@dpdk.org", "Date": "Tue, 27 Oct 2015 17:46:41 +0800", "Message-Id": "<1445939209-12783-9-git-send-email-jing.d.chen@intel.com>", "X-Mailer": "git-send-email 1.7.12.2", "In-Reply-To": "<1445939209-12783-1-git-send-email-jing.d.chen@intel.com>", "References": "<1445507104-22563-2-git-send-email-jing.d.chen@intel.com>\n\t<1445939209-12783-1-git-send-email-jing.d.chen@intel.com>", "Subject": "[dpdk-dev] [PATCH v3 08/16] fm10k: add Vector RX scatter function", "X-BeenThere": "dev@dpdk.org", "X-Mailman-Version": "2.1.15", "Precedence": "list", "List-Id": "patches and discussions about DPDK <dev.dpdk.org>", "List-Unsubscribe": "<http://dpdk.org/ml/options/dev>,\n\t<mailto:dev-request@dpdk.org?subject=unsubscribe>", "List-Archive": "<http://dpdk.org/ml/archives/dev/>", "List-Post": "<mailto:dev@dpdk.org>", "List-Help": "<mailto:dev-request@dpdk.org?subject=help>", "List-Subscribe": "<http://dpdk.org/ml/listinfo/dev>,\n\t<mailto:dev-request@dpdk.org?subject=subscribe>", "Errors-To": "dev-bounces@dpdk.org", "Sender": "\"dev\" <dev-bounces@dpdk.org>" }, "content": "From: \"Chen Jing D(Mark)\" <jing.d.chen@intel.com>\n\nAdd func fm10k_recv_scattered_pkts_vec to receive chained packets\nwith SSE instructions.\n\nSigned-off-by: Chen Jing D(Mark) <jing.d.chen@intel.com>\n---\n drivers/net/fm10k/fm10k.h | 2 +\n drivers/net/fm10k/fm10k_rxtx_vec.c | 88 ++++++++++++++++++++++++++++++++++++\n 2 files changed, 90 insertions(+), 0 deletions(-)", "diff": "diff --git a/drivers/net/fm10k/fm10k.h b/drivers/net/fm10k/fm10k.h\nindex 1502ae3..06697fa 100644\n--- a/drivers/net/fm10k/fm10k.h\n+++ b/drivers/net/fm10k/fm10k.h\n@@ -329,4 +329,6 @@ uint16_t fm10k_xmit_pkts(void *tx_queue, struct rte_mbuf **tx_pkts,\n int fm10k_rxq_vec_setup(struct fm10k_rx_queue *rxq);\n int fm10k_rx_vec_condition_check(struct rte_eth_dev *);\n uint16_t fm10k_recv_pkts_vec(void *, struct rte_mbuf **, uint16_t);\n+uint16_t fm10k_recv_scattered_pkts_vec(void *, struct rte_mbuf **,\n+\t\t\t\t\tuint16_t);\n #endif\ndiff --git a/drivers/net/fm10k/fm10k_rxtx_vec.c b/drivers/net/fm10k/fm10k_rxtx_vec.c\nindex 2e6f1a2..3fd5d45 100644\n--- a/drivers/net/fm10k/fm10k_rxtx_vec.c\n+++ b/drivers/net/fm10k/fm10k_rxtx_vec.c\n@@ -513,3 +513,91 @@ fm10k_recv_pkts_vec(void *rx_queue, struct rte_mbuf **rx_pkts,\n {\n \treturn fm10k_recv_raw_pkts_vec(rx_queue, rx_pkts, nb_pkts, NULL);\n }\n+\n+static inline uint16_t\n+fm10k_reassemble_packets(struct fm10k_rx_queue *rxq,\n+\t\tstruct rte_mbuf **rx_bufs,\n+\t\tuint16_t nb_bufs, uint8_t *split_flags)\n+{\n+\tstruct rte_mbuf *pkts[RTE_FM10K_MAX_RX_BURST]; /*finished pkts*/\n+\tstruct rte_mbuf *start = rxq->pkt_first_seg;\n+\tstruct rte_mbuf *end = rxq->pkt_last_seg;\n+\tunsigned pkt_idx, buf_idx;\n+\n+\n+\tfor (buf_idx = 0, pkt_idx = 0; buf_idx < nb_bufs; buf_idx++) {\n+\t\tif (end != NULL) {\n+\t\t\t/* processing a split packet */\n+\t\t\tend->next = rx_bufs[buf_idx];\n+\t\t\tstart->nb_segs++;\n+\t\t\tstart->pkt_len += rx_bufs[buf_idx]->data_len;\n+\t\t\tend = end->next;\n+\n+\t\t\tif (!split_flags[buf_idx]) {\n+\t\t\t\t/* it's the last packet of the set */\n+\t\t\t\tstart->hash = end->hash;\n+\t\t\t\tstart->ol_flags = end->ol_flags;\n+\t\t\t\tpkts[pkt_idx++] = start;\n+\t\t\t\tstart = end = NULL;\n+\t\t\t}\n+\t\t} else {\n+\t\t\t/* not processing a split packet */\n+\t\t\tif (!split_flags[buf_idx]) {\n+\t\t\t\t/* not a split packet, save and skip */\n+\t\t\t\tpkts[pkt_idx++] = rx_bufs[buf_idx];\n+\t\t\t\tcontinue;\n+\t\t\t}\n+\t\t\tend = start = rx_bufs[buf_idx];\n+\t\t}\n+\t}\n+\n+\t/* save the partial packet for next time */\n+\trxq->pkt_first_seg = start;\n+\trxq->pkt_last_seg = end;\n+\tmemcpy(rx_bufs, pkts, pkt_idx * (sizeof(*pkts)));\n+\treturn pkt_idx;\n+}\n+\n+/*\n+ * vPMD receive routine that reassembles scattered packets\n+ *\n+ * Notice:\n+ * - don't support ol_flags for rss and csum err\n+ * - nb_pkts > RTE_FM10K_MAX_RX_BURST, only scan RTE_FM10K_MAX_RX_BURST\n+ * numbers of DD bit\n+ */\n+uint16_t\n+fm10k_recv_scattered_pkts_vec(void *rx_queue,\n+\t\t\t\tstruct rte_mbuf **rx_pkts,\n+\t\t\t\tuint16_t nb_pkts)\n+{\n+\tstruct fm10k_rx_queue *rxq = rx_queue;\n+\tuint8_t split_flags[RTE_FM10K_MAX_RX_BURST] = {0};\n+\tunsigned i = 0;\n+\n+\t/* Split_flags only can support max of RTE_FM10K_MAX_RX_BURST */\n+\tnb_pkts = RTE_MIN(nb_pkts, RTE_FM10K_MAX_RX_BURST);\n+\t/* get some new buffers */\n+\tuint16_t nb_bufs = fm10k_recv_raw_pkts_vec(rxq, rx_pkts, nb_pkts,\n+\t\t\tsplit_flags);\n+\tif (nb_bufs == 0)\n+\t\treturn 0;\n+\n+\t/* happy day case, full burst + no packets to be joined */\n+\tconst uint64_t *split_fl64 = (uint64_t *)split_flags;\n+\tif (rxq->pkt_first_seg == NULL &&\n+\t\t\tsplit_fl64[0] == 0 && split_fl64[1] == 0 &&\n+\t\t\tsplit_fl64[2] == 0 && split_fl64[3] == 0)\n+\t\treturn nb_bufs;\n+\n+\t/* reassemble any packets that need reassembly*/\n+\tif (rxq->pkt_first_seg == NULL) {\n+\t\t/* find the first split flag, and only reassemble then*/\n+\t\twhile (i < nb_bufs && !split_flags[i])\n+\t\t\ti++;\n+\t\tif (i == nb_bufs)\n+\t\t\treturn nb_bufs;\n+\t}\n+\treturn i + fm10k_reassemble_packets(rxq, &rx_pkts[i], nb_bufs - i,\n+\t\t&split_flags[i]);\n+}\n", "prefixes": [ "dpdk-dev", "v3", "08/16" ] }