RE: [PATCH v3 5/7] app/testpmd: add meter color flow matching item

[Ori Kam <orika@nvidia.com>]

Hi Alexander,

> -----Original Message-----
> From: Alexander Kozyrev <akozyrev@nvidia.com>
> Sent: Wednesday, June 1, 2022 6:44 AM
> Subject: [PATCH v3 5/7] app/testpmd: add meter color flow matching item
> 
> Add testpmd command line to match on a meter color:
> 	flow create 0 ingress group 0 pattern meter color is green / end
> 
> Signed-off-by: Alexander Kozyrev <akozyrev@nvidia.com>
> ---
>  app/test-pmd/cmdline_flow.c                 | 83 +++++++++++++++++++++
>  doc/guides/testpmd_app_ug/testpmd_funcs.rst |  4 +
>  2 files changed, 87 insertions(+)
> 
> diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
> index e3269e278d..c66da76f25 100644
> --- a/app/test-pmd/cmdline_flow.c
> +++ b/app/test-pmd/cmdline_flow.c
> @@ -458,6 +458,9 @@ enum index {
>  	ITEM_PPP_ADDR,
>  	ITEM_PPP_CTRL,
>  	ITEM_PPP_PROTO_ID,
> +	ITEM_METER,
> +	ITEM_METER_COLOR,
> +	ITEM_METER_COLOR_NAME,
> 
>  	/* Validate/create actions. */
>  	ACTIONS,
> @@ -798,6 +801,10 @@ static const char *const modify_field_ids[] = {
>  	"tag", "mark", "meta", "pointer", "value", NULL
>  };
> 
> +static const char *const meter_colors[] = {
> +	"green", "yellow", "red", "all", NULL
> +};
> +
>  /** Maximum number of subsequent tokens and arguments on the stack. */
>  #define CTX_STACK_SIZE 16
> 
> @@ -1331,6 +1338,7 @@ static const enum index next_item[] = {
>  	ITEM_FLEX,
>  	ITEM_L2TPV2,
>  	ITEM_PPP,
> +	ITEM_METER,
>  	END_SET,
>  	ZERO,
>  };
> @@ -1803,6 +1811,12 @@ static const enum index item_ppp[] = {
>  	ZERO,
>  };
> 
> +static const enum index item_meter[] = {
> +	ITEM_METER_COLOR,
> +	ITEM_NEXT,
> +	ZERO,
> +};
> +
>  static const enum index next_action[] = {
>  	ACTION_END,
>  	ACTION_VOID,
> @@ -2371,6 +2385,9 @@ static int parse_ia_id2ptr(struct context *ctx, const struct token *token,
>  static int parse_mp(struct context *, const struct token *,
>  		    const char *, unsigned int,
>  		    void *, unsigned int);
> +static int parse_meter_color(struct context *ctx, const struct token *token,
> +			     const char *str, unsigned int len, void *buf,
> +			     unsigned int size);
>  static int comp_none(struct context *, const struct token *,
>  		     unsigned int, char *, unsigned int);
>  static int comp_boolean(struct context *, const struct token *,
> @@ -2401,6 +2418,8 @@ static int comp_table_id(struct context *, const struct token *,
>  			 unsigned int, char *, unsigned int);
>  static int comp_queue_id(struct context *, const struct token *,
>  			 unsigned int, char *, unsigned int);
> +static int comp_meter_color(struct context *, const struct token *,
> +			    unsigned int, char *, unsigned int);
> 
>  /** Token definitions. */
>  static const struct token token_list[] = {
> @@ -5063,6 +5082,29 @@ static const struct token token_list[] = {
>  		.args = ARGS(ARGS_ENTRY(struct rte_flow_item_ppp,
>  					hdr.proto_id)),
>  	},
> +	[ITEM_METER] = {
> +		.name = "meter",
> +		.help = "match meter color",
> +		.priv = PRIV_ITEM(METER_COLOR,
> +				  sizeof(struct rte_flow_item_meter_color)),
> +		.next = NEXT(item_meter),
> +		.call = parse_vc,
> +	},
> +	[ITEM_METER_COLOR] = {
> +		.name = "color",
> +		.help = "meter color",
> +		.next = NEXT(item_meter,
> +			     NEXT_ENTRY(ITEM_METER_COLOR_NAME),
> +			     item_param),
> +		.args = ARGS(ARGS_ENTRY(struct rte_flow_item_meter_color,
> +					color)),
> +	},
> +	[ITEM_METER_COLOR_NAME] = {
> +		.name = "color_name",
> +		.help = "meter color name",
> +		.call = parse_meter_color,
> +		.comp = comp_meter_color,
> +	},
>  	/* Validate/create actions. */
>  	[ACTIONS] = {
>  		.name = "actions",
> @@ -9866,6 +9908,30 @@ parse_flex_handle(struct context *ctx, const struct token *token,
>  	return ret;
>  }
> 
> +/** Parse Meter color name */
> +static int
> +parse_meter_color(struct context *ctx, const struct token *token,
> +		  const char *str, unsigned int len, void *buf,
> +		  unsigned int size)
> +{
> +	struct rte_flow_item_meter_color *meter_color;
> +	unsigned int i;
> +
> +	(void)token;
> +	(void)buf;
> +	(void)size;
> +	for (i = 0; meter_colors[i]; ++i)
> +		if (!strcmp_partial(meter_colors[i], str, len))
> +			break;
> +	if (!meter_colors[i])
> +		return -1;
> +	if (!ctx->object)
> +		return len;
> +	meter_color = ctx->object;
> +	meter_color->color = (enum rte_color)i;
> +	return len;
> +}
> +
>  /** No completion. */
>  static int
>  comp_none(struct context *ctx, const struct token *token,
> @@ -10157,6 +10223,20 @@ comp_queue_id(struct context *ctx, const struct token *token,
>  	return i;
>  }
> 
> +/** Complete available Meter colors. */
> +static int
> +comp_meter_color(struct context *ctx, const struct token *token,
> +		 unsigned int ent, char *buf, unsigned int size)
> +{
> +	RTE_SET_USED(ctx);
> +	RTE_SET_USED(token);
> +	if (!buf)
> +		return RTE_DIM(meter_colors);
> +	if (ent < RTE_DIM(meter_colors) - 1)
> +		return strlcpy(buf, meter_colors[ent], size);
> +	return -1;
> +}
> +
>  /** Internal context. */
>  static struct context cmd_flow_context;
> 
> @@ -10772,6 +10852,9 @@ flow_item_default_mask(const struct rte_flow_item *item)
>  	case RTE_FLOW_ITEM_TYPE_PPP:
>  		mask = &rte_flow_item_ppp_mask;
>  		break;
> +	case RTE_FLOW_ITEM_TYPE_METER_COLOR:
> +		mask = &rte_flow_item_meter_color_mask;
> +		break;
>  	default:
>  		break;
>  	}
> diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> index 1083c6d538..5e2f5ffb40 100644
> --- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> +++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
> @@ -4164,6 +4164,10 @@ This section lists supported pattern items and their attributes, if any.
>    - ``ctrl {unsigned}``: PPP control.
>    - ``proto_id {unsigned}``: PPP protocol identifier.
> 
> +- ``meter``: match Meter color.
> +
> +  - ``color {value}``: Meter color value(green/yellow/red).
> +
>  Actions list
>  ^^^^^^^^^^^^
> 
> --
> 2.18.2


Acked-by: Ori Kam <orika@nvidia.com>
Best,
Ori