Hi Yongseok,
<snip>
> >> Subject: [dpdk-dev] [PATCH v3] app/testpmd: make txonly mode generate
> >> multiple flows
> >>
> >> Testpmd can generate multiple flows without taking much cost and this
> >> could be a simple traffic generator for developer's quick tests. If
> >> "--txonly-multi- flow" is specified in the command line, IP source
> >> address is varied to gnerate multiple flows.
> >>
> >> Signed-off-by: Yongseok Koh <ys...@mellanox.com>
> >> ---
> >>
> >> v3:
> >> * Add "--txonly-multi-flow" param to enable the feature.
> >> * Replace __thread with RTE_PER_LCORE.
> >>
> >> v2:
> >> * Add detailed explanation in a comment.
> >>
> >> app/test-pmd/parameters.c | 4 ++++
> >> app/test-pmd/testpmd.c | 3 +++
> >> app/test-pmd/testpmd.h | 2 ++
> >> app/test-pmd/txonly.c | 22 ++++++++++++++++++++++
> >> doc/guides/testpmd_app_ug/run_app.rst | 4 ++++
> >> 5 files changed, 35 insertions(+)
> >>
> >> diff --git a/app/test-pmd/parameters.c b/app/test-pmd/parameters.c
> >> index 38b419767b..7b6b60905d 100644
> >> --- a/app/test-pmd/parameters.c
> >> +++ b/app/test-pmd/parameters.c
> >> @@ -173,6 +173,7 @@ usage(char* progname)
> >> " Used mainly with PCAP drivers.\n");
> >> printf(" --txpkts=X[,Y]*: set TX segment sizes"
> >> " or total packet length.\n");
> >> + printf(" --txonly-multi-flow: generate multiple flows in txonly
> >> +mode\n");
> >> printf(" --disable-link-check: disable check on link status when "
> >> "starting/stopping ports.\n");
> >> printf(" --no-lsc-interrupt: disable link status change
> >> interrupt.\n"); @@ -632,6 +633,7 @@ launch_args_parse(int argc, char**
> argv)
> >> { "no-flush-rx", 0, 0, 0 },
> >> { "flow-isolate-all", 0, 0, 0 },
> >> { "txpkts", 1, 0, 0 },
> >> + { "txonly-multi-flow", 0, 0, 0 },
> >> { "disable-link-check", 0, 0, 0 },
> >> { "no-lsc-interrupt", 0, 0, 0 },
> >> { "no-rmv-interrupt", 0, 0, 0 },
> >> @@ -1141,6 +1143,8 @@ launch_args_parse(int argc, char** argv)
> >> else
> >> rte_exit(EXIT_FAILURE, "bad
> >> txpkts\n");
> >> }
> >> + if (!strcmp(lgopts[opt_idx].name, "txonly-multi-
> >> flow"))
> >> + txonly_multi_flow = 1;
> >> if (!strcmp(lgopts[opt_idx].name, "no-flush-rx"))
> >> no_flush_rx = 1;
> >> if (!strcmp(lgopts[opt_idx].name, "disable-link-
> >> check")) diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
> >> index 216be47f92..b950e8cc55 100644
> >> --- a/app/test-pmd/testpmd.c
> >> +++ b/app/test-pmd/testpmd.c
> >> @@ -217,6 +217,9 @@ uint8_t tx_pkt_nb_segs = 1; /**< Number of
> >> segments in TXONLY packets */ enum tx_pkt_split tx_pkt_split =
> >> TX_PKT_SPLIT_OFF; /**< Split policy for packets to TX. */
> >>
> >> +int txonly_multi_flow;
> >
> > This should be "uint8_t txonly_multi_flow;" similar to other
> > variables in use, for example "uint8_t no_flush_rx = 0;"
> >
> >> +/**< Whether multiple flows are generated in TXONLY mode. */
> >> +
> >> uint16_t nb_pkt_per_burst = DEF_PKT_BURST; /**< Number of packets per
> >> burst. */ uint16_t mb_mempool_cache = DEF_MBUF_CACHE; /**< Size of
> >> mbuf mempool cache. */
> >>
> >> diff --git a/app/test-pmd/testpmd.h b/app/test-pmd/testpmd.h index
> >> 85b791b6bb..668227bc55 100644
> >> --- a/app/test-pmd/testpmd.h
> >> +++ b/app/test-pmd/testpmd.h
> >> @@ -439,6 +439,8 @@ enum tx_pkt_split {
> >>
> >> extern enum tx_pkt_split tx_pkt_split;
> >>
> >> +extern int txonly_multi_flow;
> >
> > This should be "extern uint8_t txonly_multi_flow;" in line with the
> > similar variables in use, For example "extern uint8_t no_flush_rx;"
>
> Okay, will change it to uint8_t but what about the error by checkpatches.sh?
>
> + ./devtools/checkpatches.sh -n1
>
> ### app/testpmd: make txonly mode generate multiple flows
>
> ERROR:GLOBAL_INITIALISERS: do not initialise globals to 0
> #50: FILE: app/test-pmd/testpmd.c:220:
> +uint8_t txonly_multi_flow = 0;
>
> total: 1 errors, 0 warnings, 95 lines checked
>
> 0/1 valid patch
>
> I'll submit without the init but if you still insist that way for
> consistency, let me
> know then I'll submit another version.
>
> Thanks,
> Yongseok
Please submit without the init to avoid checkpatch error (example probably
predates checkpatch checks).
Regards,
Bernard.
