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{
    "id": 8053,
    "url": "https://patches.dpdk.org/api/patches/8053/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/1445939209-12783-6-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": "<1445939209-12783-6-git-send-email-jing.d.chen@intel.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/1445939209-12783-6-git-send-email-jing.d.chen@intel.com",
    "date": "2015-10-27T09:46:38",
    "name": "[dpdk-dev,v3,05/16] fm10k: add 2 functions to parse pkt_type and offload flag",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "fa0aeacc3f3a5b0e466000b3192a31eaa254e07d",
    "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/1445939209-12783-6-git-send-email-jing.d.chen@intel.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/8053/comments/",
    "check": "pending",
    "checks": "https://patches.dpdk.org/api/patches/8053/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 AE19E8DAA;\n\tTue, 27 Oct 2015 10:47:20 +0100 (CET)",
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            "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 t9R9l2Wd012892; Tue, 27 Oct 2015 17:47:04 +0800",
            "(from jingche2@localhost)\n\tby shecgisg004.sh.intel.com (8.13.6/8.13.6/Submit) id t9R9l27N012848; \n\tTue, 27 Oct 2015 17:47:02 +0800"
        ],
        "X-ExtLoop1": "1",
        "X-IronPort-AV": "E=Sophos;i=\"5.20,204,1444719600\"; d=\"scan'208\";a=\"836416425\"",
        "From": "\"Chen Jing D(Mark)\" <jing.d.chen@intel.com>",
        "To": "dev@dpdk.org",
        "Date": "Tue, 27 Oct 2015 17:46:38 +0800",
        "Message-Id": "<1445939209-12783-6-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 05/16] fm10k: add 2 functions to parse\n\tpkt_type and offload flag",
        "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 2 functions, in which using SSE instructions to parse RX desc\nto get pkt_type and ol_flags in mbuf.\n\nSigned-off-by: Chen Jing D(Mark) <jing.d.chen@intel.com>\n---\n drivers/net/fm10k/fm10k_rxtx_vec.c |  127 ++++++++++++++++++++++++++++++++++++\n 1 files changed, 127 insertions(+), 0 deletions(-)",
    "diff": "diff --git a/drivers/net/fm10k/fm10k_rxtx_vec.c b/drivers/net/fm10k/fm10k_rxtx_vec.c\nindex 75533f9..581a309 100644\n--- a/drivers/net/fm10k/fm10k_rxtx_vec.c\n+++ b/drivers/net/fm10k/fm10k_rxtx_vec.c\n@@ -44,6 +44,133 @@\n #pragma GCC diagnostic ignored \"-Wcast-qual\"\n #endif\n \n+/* Handling the offload flags (olflags) field takes computation\n+ * time when receiving packets. Therefore we provide a flag to disable\n+ * the processing of the olflags field when they are not needed. This\n+ * gives improved performance, at the cost of losing the offload info\n+ * in the received packet\n+ */\n+#ifdef RTE_LIBRTE_FM10K_RX_OLFLAGS_ENABLE\n+\n+/* Vlan present flag shift */\n+#define VP_SHIFT     (2)\n+/* L3 type shift */\n+#define L3TYPE_SHIFT     (4)\n+/* L4 type shift */\n+#define L4TYPE_SHIFT     (7)\n+\n+static inline void\n+fm10k_desc_to_olflags_v(__m128i descs[4], struct rte_mbuf **rx_pkts)\n+{\n+\t__m128i ptype0, ptype1, vtag0, vtag1;\n+\tunion {\n+\t\tuint16_t e[4];\n+\t\tuint64_t dword;\n+\t} vol;\n+\n+\tconst __m128i pkttype_msk = _mm_set_epi16(\n+\t\t\t0x0000, 0x0000, 0x0000, 0x0000,\n+\t\t\tPKT_RX_VLAN_PKT, PKT_RX_VLAN_PKT,\n+\t\t\tPKT_RX_VLAN_PKT, PKT_RX_VLAN_PKT);\n+\n+\t/* mask everything except rss type */\n+\tconst __m128i rsstype_msk = _mm_set_epi16(\n+\t\t\t0x0000, 0x0000, 0x0000, 0x0000,\n+\t\t\t0x000F, 0x000F, 0x000F, 0x000F);\n+\n+\t/* map rss type to rss hash flag */\n+\tconst __m128i rss_flags = _mm_set_epi8(0, 0, 0, 0,\n+\t\t\t0, 0, 0, PKT_RX_RSS_HASH,\n+\t\t\tPKT_RX_RSS_HASH, 0, PKT_RX_RSS_HASH, 0,\n+\t\t\tPKT_RX_RSS_HASH, PKT_RX_RSS_HASH, PKT_RX_RSS_HASH, 0);\n+\n+\tptype0 = _mm_unpacklo_epi16(descs[0], descs[1]);\n+\tptype1 = _mm_unpacklo_epi16(descs[2], descs[3]);\n+\tvtag0 = _mm_unpackhi_epi16(descs[0], descs[1]);\n+\tvtag1 = _mm_unpackhi_epi16(descs[2], descs[3]);\n+\n+\tptype0 = _mm_unpacklo_epi32(ptype0, ptype1);\n+\tptype0 = _mm_and_si128(ptype0, rsstype_msk);\n+\tptype0 = _mm_shuffle_epi8(rss_flags, ptype0);\n+\n+\tvtag1 = _mm_unpacklo_epi32(vtag0, vtag1);\n+\tvtag1 = _mm_srli_epi16(vtag1, VP_SHIFT);\n+\tvtag1 = _mm_and_si128(vtag1, pkttype_msk);\n+\n+\tvtag1 = _mm_or_si128(ptype0, vtag1);\n+\tvol.dword = _mm_cvtsi128_si64(vtag1);\n+\n+\trx_pkts[0]->ol_flags = vol.e[0];\n+\trx_pkts[1]->ol_flags = vol.e[1];\n+\trx_pkts[2]->ol_flags = vol.e[2];\n+\trx_pkts[3]->ol_flags = vol.e[3];\n+}\n+\n+static inline void\n+fm10k_desc_to_pktype_v(__m128i descs[4], struct rte_mbuf **rx_pkts)\n+{\n+\t__m128i l3l4type0, l3l4type1, l3type, l4type;\n+\tunion {\n+\t\tuint16_t e[4];\n+\t\tuint64_t dword;\n+\t} vol;\n+\n+\t/* L3 pkt type mask  Bit4 to Bit6 */\n+\tconst __m128i l3type_msk = _mm_set_epi16(\n+\t\t\t0x0000, 0x0000, 0x0000, 0x0000,\n+\t\t\t0x0070, 0x0070, 0x0070, 0x0070);\n+\n+\t/* L4 pkt type mask  Bit7 to Bit9 */\n+\tconst __m128i l4type_msk = _mm_set_epi16(\n+\t\t\t0x0000, 0x0000, 0x0000, 0x0000,\n+\t\t\t0x0380, 0x0380, 0x0380, 0x0380);\n+\n+\t/* convert RRC l3 type to mbuf format */\n+\tconst __m128i l3type_flags = _mm_set_epi8(0, 0, 0, 0, 0, 0, 0, 0,\n+\t\t\t0, 0, 0, RTE_PTYPE_L3_IPV6_EXT,\n+\t\t\tRTE_PTYPE_L3_IPV6, RTE_PTYPE_L3_IPV4_EXT,\n+\t\t\tRTE_PTYPE_L3_IPV4, 0);\n+\n+\t/* Convert RRC l4 type to mbuf format l4type_flags shift-left 8 bits\n+\t * to fill into8 bits length.\n+\t */\n+\tconst __m128i l4type_flags = _mm_set_epi8(0, 0, 0, 0, 0, 0, 0, 0, 0,\n+\t\t\tRTE_PTYPE_TUNNEL_GENEVE >> 8,\n+\t\t\tRTE_PTYPE_TUNNEL_NVGRE >> 8,\n+\t\t\tRTE_PTYPE_TUNNEL_VXLAN >> 8,\n+\t\t\tRTE_PTYPE_TUNNEL_GRE >> 8,\n+\t\t\tRTE_PTYPE_L4_UDP >> 8,\n+\t\t\tRTE_PTYPE_L4_TCP >> 8,\n+\t\t\t0);\n+\n+\tl3l4type0 = _mm_unpacklo_epi16(descs[0], descs[1]);\n+\tl3l4type1 = _mm_unpacklo_epi16(descs[2], descs[3]);\n+\tl3l4type0 = _mm_unpacklo_epi32(l3l4type0, l3l4type1);\n+\n+\tl3type = _mm_and_si128(l3l4type0, l3type_msk);\n+\tl4type = _mm_and_si128(l3l4type0, l4type_msk);\n+\n+\tl3type = _mm_srli_epi16(l3type, L3TYPE_SHIFT);\n+\tl4type = _mm_srli_epi16(l4type, L4TYPE_SHIFT);\n+\n+\tl3type = _mm_shuffle_epi8(l3type_flags, l3type);\n+\t/* l4type_flags shift-left for 8 bits, need shift-right back */\n+\tl4type = _mm_shuffle_epi8(l4type_flags, l4type);\n+\n+\tl4type = _mm_slli_epi16(l4type, 8);\n+\tl3l4type0 = _mm_or_si128(l3type, l4type);\n+\tvol.dword = _mm_cvtsi128_si64(l3l4type0);\n+\n+\trx_pkts[0]->packet_type = vol.e[0];\n+\trx_pkts[1]->packet_type = vol.e[1];\n+\trx_pkts[2]->packet_type = vol.e[2];\n+\trx_pkts[3]->packet_type = vol.e[3];\n+}\n+#else\n+#define fm10k_desc_to_olflags_v(desc, rx_pkts) do {} while (0)\n+#define fm10k_desc_to_pktype_v(desc, rx_pkts) do {} while (0)\n+#endif\n+\n int __attribute__((cold))\n fm10k_rxq_vec_setup(struct fm10k_rx_queue *rxq)\n {\n",
    "prefixes": [
        "dpdk-dev",
        "v3",
        "05/16"
    ]
}