Hi Stephan,
Tuesday, June 19, 2018 12:36 AM, Stephen Hemminger:
> Subject: [dpdk-dev] [PATCH v3 1/3] testpmd: add ability to set tx IP and UDP
> parameters
>
> Use RFC standard values for Tx only test as defaults.
> But let the user override those values on command line.
I think it is a good flexibility to add to testpmd for testing purposes.
Wondering if we can expend this one a bit more for the user to configure a
range of udp/tcp ports and ip src/dst addresses which will be transmitted in a
round robin fashion by the application.
We don't need testpmd to be full blown packet generator, but sending range of 5
tuple can much help when testing RSS/single core performance.
>
> Signed-off-by: Stephen Hemminger <step...@networkplumber.org>
> ---
> app/test-pmd/parameters.c | 49 +++++++++++++++++++++++++++
> app/test-pmd/testpmd.h | 6 ++++
> app/test-pmd/txonly.c | 18 +++++-----
> doc/guides/testpmd_app_ug/run_app.rst | 9 +++++
> 4 files changed, 74 insertions(+), 8 deletions(-)
>
> diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c index
> 75807623c719..6d666e088fd9 100644
> --- a/app/test-pmd/parameters.c
> +++ b/app/test-pmd/parameters.c
> @@ -19,6 +19,7 @@
> #include <stdint.h>
> #include <unistd.h>
> #include <inttypes.h>
> +#include <arpa/inet.h>
>
> #include <rte_common.h>
> #include <rte_byteorder.h>
> @@ -65,6 +66,7 @@ usage(char* progname)
> #ifdef RTE_LIBRTE_CMDLINE
> "--eth-peers-configfile= | "
> "--eth-peer=X,M:M:M:M:M:M | "
> + "--tx-ip=SRC,DST | --tx-udp=PORT | "
> #endif
> "--pkt-filter-mode= |"
> "--rss-ip | --rss-udp | "
> @@ -625,6 +627,8 @@ launch_args_parse(int argc, char** argv)
> { "vxlan-gpe-port", 1, 0, 0 },
> { "mlockall", 0, 0, 0 },
> { "no-mlockall", 0, 0, 0 },
> + { "tx-ip", 1, 0, 0 },
> + { "tx-udp", 1, 0, 0 },
> { 0, 0, 0, 0 },
> };
>
> @@ -717,6 +721,51 @@ launch_args_parse(int argc, char** argv)
> nb_peer_eth_addrs++;
> }
> #endif
> + if (!strcmp(lgopts[opt_idx].name, "tx-ip")) {
> + struct in_addr in;
> + char *end;
> +
> + end = strchr(optarg, ',');
> + if (end == optarg || !end)
> + rte_exit(EXIT_FAILURE,
> + "Invalid tx-ip: %s", optarg);
> +
> + *end++ = 0;
> + if (inet_aton(optarg, &in) == 0)
> + rte_exit(EXIT_FAILURE,
> + "Invalid source IP address:
> %s\n", optarg);
> + tx_ip_src_addr =
> rte_be_to_cpu_32(in.s_addr);
> +
> + if (inet_aton(end, &in) == 0)
> + rte_exit(EXIT_FAILURE,
> + "Invalid destination IP
> address: %s\n", optarg);
> + tx_ip_dst_addr =
> rte_be_to_cpu_32(in.s_addr);
> + }
> + if (!strcmp(lgopts[opt_idx].name, "tx-udp")) {
> + char *end = NULL;
> +
> + errno = 0;
> + n = strtoul(optarg, &end, 10);
> + if (errno != 0 || end == optarg || n >
> UINT16_MAX ||
> + !(*end == '\0' || *end == ','))
> + rte_exit(EXIT_FAILURE,
> + "Invalid UDP port: %s\n",
> optarg);
> + tx_udp_src_port = n;
> + if (*end == ',') {
> + char *dst = end + 1;
> +
> + n = strtoul(dst, &end, 10);
> + if (errno != 0 || end == dst ||
> + n > UINT16_MAX || *end)
> + rte_exit(EXIT_FAILURE,
> + "Invalid destination
> UDP port: %s\n",
> + dst);
> + tx_udp_dst_port = n;
> + } else {
> + tx_udp_dst_port = n;
> + }
> +
> + }
> if (!strcmp(lgopts[opt_idx].name, "nb-ports")) {
> n = atoi(optarg);
> if (n > 0 && n <= nb_ports)
> diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h index
> f51cd9dd9bbd..48f7b364e9b3 100644
> --- a/app/test-pmd/testpmd.h
> +++ b/app/test-pmd/testpmd.h
> @@ -444,6 +444,12 @@ extern int8_t tx_pthresh; extern int8_t tx_hthresh;
> extern int8_t tx_wthresh;
>
> +extern uint16_t tx_udp_src_port;
> +extern uint16_t tx_udp_dst_port;
> +
> +extern uint32_t tx_ip_src_addr;
> +extern uint32_t tx_ip_dst_addr;
> +
> extern struct fwd_config cur_fwd_config; extern struct fwd_engine
> *cur_fwd_eng; extern uint32_t retry_enabled; diff --git a/app/test-
> pmd/txonly.c b/app/test-pmd/txonly.c index 1f08b6ed37a2..689c53eb73f8
> 100644
> --- a/app/test-pmd/txonly.c
> +++ b/app/test-pmd/txonly.c
> @@ -40,11 +40,13 @@
>
> #include "testpmd.h"
>
> -#define UDP_SRC_PORT 1024
> -#define UDP_DST_PORT 1024
> +/* use RFC863 Discard Protocol */
> +uint16_t tx_udp_src_port = 9;
> +uint16_t tx_udp_dst_port = 9;
>
> -#define IP_SRC_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 1) -#define
> IP_DST_ADDR ((192U << 24) | (168 << 16) | (0 << 8) | 2)
> +/* use RFC5735 / RFC2544 reserved network test addresses */ uint32_t
> +tx_ip_src_addr = (192U << 24) | (18 << 16) | (0 << 8) | 1; uint32_t
> +tx_ip_dst_addr = (192U << 24) | (18 << 16) | (0 << 8) | 2;
>
> #define IP_DEFTTL 64 /* from RFC 1340. */
> #define IP_VERSION 0x40
> @@ -104,8 +106,8 @@ setup_pkt_udp_ip_headers(struct ipv4_hdr *ip_hdr,
> * Initialize UDP header.
> */
> pkt_len = (uint16_t) (pkt_data_len + sizeof(struct udp_hdr));
> - udp_hdr->src_port = rte_cpu_to_be_16(UDP_SRC_PORT);
> - udp_hdr->dst_port = rte_cpu_to_be_16(UDP_DST_PORT);
> + udp_hdr->src_port = rte_cpu_to_be_16(tx_udp_src_port);
> + udp_hdr->dst_port = rte_cpu_to_be_16(tx_udp_dst_port);
> udp_hdr->dgram_len = RTE_CPU_TO_BE_16(pkt_len);
> udp_hdr->dgram_cksum = 0; /* No UDP checksum. */
>
> @@ -120,8 +122,8 @@ setup_pkt_udp_ip_headers(struct ipv4_hdr *ip_hdr,
> ip_hdr->next_proto_id = IPPROTO_UDP;
> ip_hdr->packet_id = 0;
> ip_hdr->total_length = RTE_CPU_TO_BE_16(pkt_len);
> - ip_hdr->src_addr = rte_cpu_to_be_32(IP_SRC_ADDR);
> - ip_hdr->dst_addr = rte_cpu_to_be_32(IP_DST_ADDR);
> + ip_hdr->src_addr = rte_cpu_to_be_32(tx_ip_src_addr);
> + ip_hdr->dst_addr = rte_cpu_to_be_32(tx_ip_dst_addr);
>
> /*
> * Compute IP header checksum.
> diff --git a/doc/guides/testpmd_app_ug/run_app.rst
> b/doc/guides/testpmd_app_ug/run_app.rst
> index f301c2b6f709..ae9eb712e209 100644
> --- a/doc/guides/testpmd_app_ug/run_app.rst
> +++ b/doc/guides/testpmd_app_ug/run_app.rst
> @@ -249,6 +249,15 @@ The commandline options are:
> Set the MAC address ``XX:XX:XX:XX:XX:XX`` of the peer port N,
> where 0 <= N < ``CONFIG_RTE_MAX_ETHPORTS`` from the configuration
> file.
>
> +
> +* ``--tx-ip=SRC,DST``
> + Set the source and destination IP address used when doing transmit only
> test.
> + The defaults are source 192.18.0.1 and destination 192.18.0.2.
> +
> +* ``--tx-udp=SRC[,DST]``
> + Set the source and destination UDP port number for transmit test only
> test.
> + The default port is the 9 (discard).
> +
> * ``--pkt-filter-mode=mode``
>
> Set Flow Director mode where mode is either ``none`` (the default),
> ``signature`` or ``perfect``.
> --
> 2.17.1
