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{
    "id": 32332,
    "url": "https://patches.dpdk.org/api/patches/32332/?format=api",
    "web_url": "https://patches.dpdk.org/project/dpdk/patch/20171215211125.39177-1-yskoh@mellanox.com/",
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    "msgid": "<20171215211125.39177-1-yskoh@mellanox.com>",
    "list_archive_url": "https://inbox.dpdk.org/dev/20171215211125.39177-1-yskoh@mellanox.com",
    "date": "2017-12-15T21:11:25",
    "name": "[dpdk-dev] app/testpmd: make txonly mode generate multiple flows",
    "commit_ref": null,
    "pull_url": null,
    "state": "superseded",
    "archived": true,
    "hash": "5b6b60bf2c1df0fc60e40d5f53cf34ccc0863009",
    "submitter": {
        "id": 636,
        "url": "https://patches.dpdk.org/api/people/636/?format=api",
        "name": "Yongseok Koh",
        "email": "yskoh@mellanox.com"
    },
    "delegate": {
        "id": 1,
        "url": "https://patches.dpdk.org/api/users/1/?format=api",
        "username": "tmonjalo",
        "first_name": "Thomas",
        "last_name": "Monjalon",
        "email": "thomas@monjalon.net"
    },
    "mbox": "https://patches.dpdk.org/project/dpdk/patch/20171215211125.39177-1-yskoh@mellanox.com/mbox/",
    "series": [],
    "comments": "https://patches.dpdk.org/api/patches/32332/comments/",
    "check": "success",
    "checks": "https://patches.dpdk.org/api/patches/32332/checks/",
    "tags": {},
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        "From": "Yongseok Koh <yskoh@mellanox.com>",
        "To": "jingjing.wu@intel.com",
        "Cc": "dev@dpdk.org,\n\tYongseok Koh <yskoh@mellanox.com>",
        "Date": "Fri, 15 Dec 2017 13:11:25 -0800",
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        "Subject": "[dpdk-dev] [PATCH] app/testpmd: make txonly mode generate multiple\n\tflows",
        "X-BeenThere": "dev@dpdk.org",
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        "Precedence": "list",
        "List-Id": "DPDK patches and discussions <dev.dpdk.org>",
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        "Errors-To": "dev-bounces@dpdk.org",
        "Sender": "\"dev\" <dev-bounces@dpdk.org>"
    },
    "content": "Testpmd can generate multiple flows without taking much cost and this could\nbe a simple traffic generator for developer's quick tests. IP destination\naddress is varied.\n\nSigned-off-by: Yongseok Koh <yskoh@mellanox.com>\n---\n app/test-pmd/txonly.c | 12 +++++++++++-\n 1 file changed, 11 insertions(+), 1 deletion(-)",
    "diff": "diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c\nindex 309c73893..aa4c379c4 100644\n--- a/app/test-pmd/txonly.c\n+++ b/app/test-pmd/txonly.c\n@@ -73,7 +73,7 @@\n #define UDP_DST_PORT 1024\n \n #define IP_SRC_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 1)\n-#define IP_DST_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 2)\n+#define IP_DST_ADDR ((192U << 24) | (168 << 16))\n \n #define IP_DEFTTL  64   /* from RFC 1340. */\n #define IP_VERSION 0x40\n@@ -81,6 +81,7 @@\n #define IP_VHL_DEF (IP_VERSION | IP_HDRLEN)\n \n static struct ipv4_hdr  pkt_ip_hdr;  /**< IP header of transmitted packets. */\n+static __thread uint8_t ip_var; /**< IP address variation */\n static struct udp_hdr pkt_udp_hdr; /**< UDP header of transmitted packets. */\n \n static void\n@@ -187,6 +188,7 @@ pkt_burst_transmit(struct fwd_stream *fs)\n \tstruct rte_mbuf *pkt_seg;\n \tstruct rte_mempool *mbp;\n \tstruct ether_hdr eth_hdr;\n+\tstruct ipv4_hdr *ip_hdr;\n \tuint16_t nb_tx;\n \tuint16_t nb_pkt;\n \tuint16_t vlan_tci, vlan_tci_outer;\n@@ -263,6 +265,14 @@ pkt_burst_transmit(struct fwd_stream *fs)\n \t\tcopy_buf_to_pkt(&eth_hdr, sizeof(eth_hdr), pkt, 0);\n \t\tcopy_buf_to_pkt(&pkt_ip_hdr, sizeof(pkt_ip_hdr), pkt,\n \t\t\t\tsizeof(struct ether_hdr));\n+\t\tip_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *,\n+\t\t\t\t\t\t sizeof(struct ether_hdr));\n+\t\t/*\n+\t\t * Generate multiple flows by varying IP dest addr.\n+\t\t */\n+\t\tip_hdr->dst_addr =\n+\t\t\trte_cpu_to_be_32(IP_DST_ADDR | (ip_var++ << 8) |\n+\t\t\t\t\t (rte_lcore_id() + 1));\n \t\tcopy_buf_to_pkt(&pkt_udp_hdr, sizeof(pkt_udp_hdr), pkt,\n \t\t\t\tsizeof(struct ether_hdr) +\n \t\t\t\tsizeof(struct ipv4_hdr));\n",
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