[PATCH v3 8/8] examples/l3fwd-power: update to call arg parser API
Hunt, David
david.hunt at intel.com
Mon Dec 11 13:01:54 CET 2023
Hi Euan,
On 07/12/2023 16:18, Euan Bourke wrote:
> Update to the l3fwd-power example application to call the arg parser
> library for its 'combined core string parser' instead of implementing its
> own corelist parser. The default_type passed into the function call is
> a corelist.
>
> Signed-off-by: Euan Bourke <euan.bourke at intel.com>
> ---
> examples/l3fwd-power/perf_core.c | 51 +++++---------------------------
> 1 file changed, 8 insertions(+), 43 deletions(-)
>
> diff --git a/examples/l3fwd-power/perf_core.c b/examples/l3fwd-power/perf_core.c
> index 41ef6d0c9a..f8511e30b3 100644
> --- a/examples/l3fwd-power/perf_core.c
> +++ b/examples/l3fwd-power/perf_core.c
> @@ -12,6 +12,7 @@
> #include <rte_lcore.h>
> #include <rte_power.h>
> #include <rte_string_fns.h>
> +#include <rte_arg_parser.h>
>
> #include "perf_core.h"
> #include "main.h"
> @@ -177,56 +178,20 @@ parse_perf_config(const char *q_arg)
> int
> parse_perf_core_list(const char *corelist)
> {
> - int i, idx = 0;
> - unsigned int count = 0;
> - char *end = NULL;
> - int min, max;
> + int count;
> + uint16_t cores[RTE_MAX_LCORE];
>
> if (corelist == NULL) {
> printf("invalid core list\n");
> return -1;
> }
>
> + count = rte_arg_parse_core_string(corelist, cores, RTE_DIM(cores), 1);
>
> - /* Remove all blank characters ahead and after */
> - while (isblank(*corelist))
> - corelist++;
> - i = strlen(corelist);
> - while ((i > 0) && isblank(corelist[i - 1]))
> - i--;
> + for (int i = 0; i < count; i++)
nit: you've used int here, but below you use uint16_t for a for loop. If
you're re-spinning, it might be worth making consistent. But no biggie.
--snip--
> @@ -234,7 +199,7 @@ parse_perf_core_list(const char *corelist)
> nb_hp_lcores = count;
>
> printf("Configured %d high performance cores\n", nb_hp_lcores);
> - for (i = 0; i < nb_hp_lcores; i++)
> + for (uint16_t i = 0; i < nb_hp_lcores; i++)
> printf("\tHigh performance core %d %d\n",
> i, hp_lcores[i]);
>
I've also tested this with a 16-core incantation of l3fwd-power with
various combinations of cores, seems to work well.
Acked-by: David Hunt <david.hunt at intel.com>
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