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AM5PR0501MB2034; 6:O1KlFgRKbzbnJF+af/NJsNSS3Qr8qHFHDH1BA+UFwZY06z4MJVhmqhDOuwVg+GFAA2kynEQ7Vay5mkK5gJDPkKZoY09eQsRxi1hvl1sStfJKNEHJlXplDv/NWRlqu3AYWAfCJsK1oaGGld/zrlfG75sXf+7fhgMMDjs/qGWsjaE/1vGvu3nunqhbffU2m0dVG/kmyfQTZQSnvQFWe7C0cyDDcrRVSEp5wyFtRri4SAcTq4juaNT4OcYOzw8DUrewCqIu0tT+Y6pac9yGEmn/32jEL+yRNfi+8gLqxSyCpwjpTtvoCn5fpmD1hQe4PQeX6XTutR58WJnEqK0Cob8ZjlAuM0aVQ2olgg00twD/bbg=; 5:xtNNB9ZbbC8Zhmt7nmXHKK/joFsEwkJessl1Fq0uE1KhNAegVn2SNn0qZfI6Mm4aWT6dQHzl0t/i02jIdUSuTIat6Q4X44UrhuZ6G3G4jQsdC7KsGdsIiy1yZeIsKlvh3jML6yJIxmglCbNLdzbDgCZ6OX5QjR3fQlQ0QSTE96U=; 24:xhXLpJFvqx4BUmgbmBnjRYudiJmOIHxxnUAUtc5JmKoHD5pNXVLASysMFetG2ikolSI+rFYJsAdtpzlY+mh/h9cUPGdFz9XQXctMI+7v5a0=; 7:/HVWu52ygsobEPyyLdmtmmozu0patkVLyrQh6ddc2k43dUwT8fpRk08mXA5lxNwkb0rDAP5+cwJ3IeI5IpWVGTD1iPmHy2lcBf8XpGWiYG8GYux1gGMtPHkNo2BE8bUmLbr4MUC/W+3A9y7xafEWWpa9QAyNRrGRJwtxtUHbJ0YOoqcUSsuAIU46RUwWsVD7IDK4Y2w66I8noMFEyfpsOSdochrzkoxGL75d5fEykY+XKr0enqpc8+y0rEDjWKyg SpamDiagnosticOutput: 1:99 SpamDiagnosticMetadata: NSPM X-OriginatorOrg: Mellanox.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 17 Jan 2018 18:19:04.3687 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 2029e0da-40be-4c40-98ff-08d55dd6cb2c X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-CrossTenant-Id: a652971c-7d2e-4d9b-a6a4-d149256f461b X-MS-Exchange-Transport-CrossTenantHeadersStamped: AM5PR0501MB2034 Subject: [dpdk-dev] [PATCH v2] app/testpmd: make txonly mode generate multiple flows X-BeenThere: dev@dpdk.org X-Mailman-Version: 2.1.15 Precedence: list List-Id: DPDK patches and discussions <dev.dpdk.org> List-Unsubscribe: <https://dpdk.org/ml/options/dev>, <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: <https://dpdk.org/ml/listinfo/dev>, <mailto:dev-request@dpdk.org?subject=subscribe> X-List-Received-Date: Wed, 17 Jan 2018 18:19:08 -0000 Testpmd can generate multiple flows without taking much cost and this could be a simple traffic generator for developer's quick tests. IP destination address is varied. Signed-off-by: Yongseok Koh <yskoh@mellanox.com> --- v2: * Add detailed explanation in a comment. app/test-pmd/txonly.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-) diff --git a/app/test-pmd/txonly.c b/app/test-pmd/txonly.c index 1f08b6ed3..253cf2385 100644 --- a/app/test-pmd/txonly.c +++ b/app/test-pmd/txonly.c @@ -44,7 +44,7 @@ #define UDP_DST_PORT 1024 #define IP_SRC_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 1) -#define IP_DST_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 2) +#define IP_DST_ADDR ((192U << 24) | (168 << 16)) #define IP_DEFTTL 64 /* from RFC 1340. */ #define IP_VERSION 0x40 @@ -52,6 +52,7 @@ #define IP_VHL_DEF (IP_VERSION | IP_HDRLEN) static struct ipv4_hdr pkt_ip_hdr; /**< IP header of transmitted packets. */ +static __thread uint8_t ip_var; /**< IP address variation */ static struct udp_hdr pkt_udp_hdr; /**< UDP header of transmitted packets. */ static void @@ -159,6 +160,7 @@ pkt_burst_transmit(struct fwd_stream *fs) struct rte_mbuf *pkt_seg; struct rte_mempool *mbp; struct ether_hdr eth_hdr; + struct ipv4_hdr *ip_hdr; uint16_t nb_tx; uint16_t nb_pkt; uint16_t vlan_tci, vlan_tci_outer; @@ -237,6 +239,17 @@ pkt_burst_transmit(struct fwd_stream *fs) copy_buf_to_pkt(ð_hdr, sizeof(eth_hdr), pkt, 0); copy_buf_to_pkt(&pkt_ip_hdr, sizeof(pkt_ip_hdr), pkt, sizeof(struct ether_hdr)); + ip_hdr = rte_pktmbuf_mtod_offset(pkt, struct ipv4_hdr *, + sizeof(struct ether_hdr)); + /* + * Generate multiple flows by varying IP dest addr. This enables + * packets are well distributed by RSS in receiver side if any + * and txonly mode can be a decent packet generator for + * developer's quick performance regression test. + */ + ip_hdr->dst_addr = + rte_cpu_to_be_32(IP_DST_ADDR | (ip_var++ << 8) | + (rte_lcore_id() + 1)); copy_buf_to_pkt(&pkt_udp_hdr, sizeof(pkt_udp_hdr), pkt, sizeof(struct ether_hdr) + sizeof(struct ipv4_hdr)); -- 2.11.0