Re: [PATCH v2] app/testpmd: make txonly mode generate multiple flows

[Jerin Jacob <jerin.jacob@caviumnetworks.com>]

-----Original Message-----
> Date: Wed, 17 Jan 2018 10:18:46 -0800
> From: Yongseok Koh <yskoh@mellanox.com>
> To: wenzhuo.lu@intel.com, jingjing.wu@intel.com
> CC: dev@dpdk.org, Yongseok Koh <yskoh@mellanox.com>
> Subject: [dpdk-dev] [PATCH v2] app/testpmd: make txonly mode generate
>  multiple flows
> X-Mailer: git-send-email 2.11.0
> 
> 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.

Useful feature.

> 
> 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 */

Use RTE_DECLARE_PER_LCORE instead of __thread