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{
    "id": 28725,
    "url": "https://patches.dpdk.org/api/patches/28725/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/bf55957ce3c8dc7d749ab1bb964f96bf54b31723.1505385989.git.shahafs@mellanox.com/",
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    "msgid": "<bf55957ce3c8dc7d749ab1bb964f96bf54b31723.1505385989.git.shahafs@mellanox.com>",
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    "date": "2017-09-14T10:50:36",
    "name": "[dpdk-dev,v5,1/4] net/mlx5: fix num seg assumption on vPMD",
    "commit_ref": null,
    "pull_url": null,
    "state": "accepted",
    "archived": true,
    "hash": "b50f31e90b770fcdb008de583a96808dc8f826df",
    "submitter": {
        "id": 634,
        "url": "https://patches.dpdk.org/api/people/634/?format=api",
        "name": "Shahaf Shuler",
        "email": "shahafs@mellanox.com"
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        "username": "fyigit",
        "first_name": "Ferruh",
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        "email": "ferruh.yigit@amd.com"
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    "comments": "https://patches.dpdk.org/api/patches/28725/comments/",
    "check": "success",
    "checks": "https://patches.dpdk.org/api/patches/28725/checks/",
    "tags": {},
    "related": [],
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        "From": "Shahaf Shuler <shahafs@mellanox.com>",
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        "Cc": "dev@dpdk.org,\n\tstable@dpdk.org",
        "Date": "Thu, 14 Sep 2017 13:50:36 +0300",
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        "Subject": "[dpdk-dev] [PATCH v5 1/4] net/mlx5: fix num seg assumption on vPMD",
        "X-BeenThere": "dev@dpdk.org",
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        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "Errors-To": "dev-bounces@dpdk.org",
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    "content": "vPMD Tx function assumes that after the scatter of the\nmulti-segment packets the next packet will be a single segment packet.\n\nThis is not current as the function can return due to lack of resources\nwithout sending all of the multi-segment mbufs sequence.\n\nFixes: 6cb559d67b83 (\"net/mlx5: add vectorized Rx/Tx burst for x86\")\nCc: stable@dpdk.org\nCc: yskoh@mellanox.com\n\nSigned-off-by: Shahaf Shuler <shahafs@mellanox.com>\nAcked-by: Yongseok Koh <yskoh@mellanox.com>\nAcked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>\n---\n drivers/net/mlx5/mlx5_rxtx_vec_sse.c | 6 ++----\n 1 file changed, 2 insertions(+), 4 deletions(-)",
    "diff": "diff --git a/drivers/net/mlx5/mlx5_rxtx_vec_sse.c b/drivers/net/mlx5/mlx5_rxtx_vec_sse.c\nindex 37854a73b..f89762ff8 100644\n--- a/drivers/net/mlx5/mlx5_rxtx_vec_sse.c\n+++ b/drivers/net/mlx5/mlx5_rxtx_vec_sse.c\n@@ -112,8 +112,7 @@ txq_wr_dseg_v(struct txq *txq, __m128i *dseg,\n }\n \n /**\n- * Count the number of continuous single segment packets. The first packet must\n- * be a single segment packet.\n+ * Count the number of continuous single segment packets.\n  *\n  * @param pkts\n  *   Pointer to array of packets.\n@@ -130,9 +129,8 @@ txq_check_multiseg(struct rte_mbuf **pkts, uint16_t pkts_n)\n \n \tif (!pkts_n)\n \t\treturn 0;\n-\tassert(NB_SEGS(pkts[0]) == 1);\n \t/* Count the number of continuous single segment packets. */\n-\tfor (pos = 1; pos < pkts_n; ++pos)\n+\tfor (pos = 0; pos < pkts_n; ++pos)\n \t\tif (NB_SEGS(pkts[pos]) > 1)\n \t\t\tbreak;\n \treturn pos;\n",
    "prefixes": [
        "dpdk-dev",
        "v5",
        "1/4"
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}