[dpdk-dev] [PATCH v9 1/4] librte_flow_classify: add flow classify library

Singh, Jasvinder jasvinder.singh at intel.com
Mon Oct 23 15:21:54 CEST 2017


<snip>
> --- a/lib/Makefile
> +++ b/lib/Makefile
> @@ -83,6 +83,9 @@ DIRS-$(CONFIG_RTE_LIBRTE_POWER) += librte_power
>  DEPDIRS-librte_power := librte_eal
>  DIRS-$(CONFIG_RTE_LIBRTE_METER) += librte_meter
>  DEPDIRS-librte_meter := librte_eal
> +DIRS-$(CONFIG_RTE_LIBRTE_FLOW_CLASSIFY) += librte_flow_classify
> +DEPDIRS-librte_flow_classify := librte_eal librte_ether librte_net
> +DEPDIRS-librte_flow_classify += librte_table librte_acl librte_port

Please check dependency, I think you don't need librte_port, librte_eal, librte_ether

>  DIRS-$(CONFIG_RTE_LIBRTE_SCHED) += librte_sched
>  DEPDIRS-librte_sched := librte_eal librte_mempool librte_mbuf librte_net
>  DEPDIRS-librte_sched += librte_timer
> diff --git a/lib/librte_eal/common/include/rte_log.h
> b/lib/librte_eal/common/include/rte_log.h
> index 2fa1199..67209ae 100644
> --- a/lib/librte_eal/common/include/rte_log.h
> +++ b/lib/librte_eal/common/include/rte_log.h
> @@ -88,6 +88,7 @@ struct rte_logs {
>  #define RTE_LOGTYPE_EFD       18 /**< Log related to EFD. */
>  #define RTE_LOGTYPE_EVENTDEV  19 /**< Log related to eventdev. */
>  #define RTE_LOGTYPE_GSO       20 /**< Log related to GSO. */
> +#define RTE_LOGTYPE_CLASSIFY  21 /**< Log related to flow classify. */
> 

<snip>

> +static int
> +flow_classifier_run(struct rte_flow_classifier *cls,
> +		uint32_t table_id,
> +		struct rte_mbuf **pkts,
> +		const uint16_t nb_pkts)
> +{
> +	int ret = -EINVAL;
> +	uint64_t pkts_mask;
> +	uint64_t lookup_hit_mask;
> +
> +	if (!cls || !pkts || nb_pkts == 0 || table_id >= cls->num_tables)
> +		return ret;
> +
> +	if (cls->tables[table_id].ops.f_lookup != NULL) {
> +		pkts_mask = RTE_LEN2MASK(nb_pkts, uint64_t);
> +		ret = cls->tables[table_id].ops.f_lookup(
> +			cls->tables[table_id].h_table,
> +			pkts, pkts_mask, &lookup_hit_mask,
> +			(void **)cls->entries);
> +
> +		if (!ret && lookup_hit_mask)
> +			cls->nb_pkts = nb_pkts;
> +		else
> +			cls->nb_pkts = 0;
> +	}
> +
> +	return ret;
> +}

Remove checks in the above function as these are already checked in query function below.

> +static int
> +action_apply(struct rte_flow_classifier *cls,
> +		struct rte_flow_classify_rule *rule,
> +		struct rte_flow_classify_stats *stats)
> +{
> +	struct rte_flow_classify_ipv4_5tuple_stats *ntuple_stats;
> +	uint64_t count = 0;
> +	int i;
> +	int ret = -ENODATA;
> +
> +	switch (rule->action.type) {
> +	case RTE_FLOW_ACTION_TYPE_COUNT:
> +		for (i = 0; i < cls->nb_pkts; i++) {
> +			if (rule->id == cls->entries[i]->rule_id)
> +				count++;
> +		}
> +		if (count) {
> +			ret = 0;
> +			ntuple_stats =
> +				(struct rte_flow_classify_ipv4_5tuple_stats
> *)
> +				stats->stats;
> +			ntuple_stats->counter1 = count;
> +			ntuple_stats->ipv4_5tuple = rule-
> >rules.u.ipv4_5tuple;
> +		}
> +		break;
> +	default:
> +		ret = -ENOTSUP;
> +		break;
> +	}
> +
> +	return ret;
> +}
> +
> +int
> +rte_flow_classifier_query(struct rte_flow_classifier *cls,
> +		uint32_t table_id,
> +		struct rte_mbuf **pkts,
> +		const uint16_t nb_pkts,
> +		struct rte_flow_classify_rule *rule,
> +		struct rte_flow_classify_stats *stats)
> +{
> +	int ret = -EINVAL;
> +
> +	if (!cls || !rule || !stats || !pkts  || nb_pkts == 0 ||
> +		table_id >= cls->num_tables)
> +		return ret;
> +
> +	ret = flow_classifier_run(cls, table_id, pkts, nb_pkts);
> +	if (!ret)
> +		ret = action_apply(cls, rule, stats);
> +	return ret;
> +}


Also, there are some compilation warnings as below;

Failed Build #1:
OS: FreeBSD10.3_64
Target: x86_64-native-bsdapp-clang,   x86_64-native-bsdapp-gcc
SYMLINK-FILE include/rte_flow_classify.h/home/patchWorkOrg/compilation/lib/librte_flow_classify/rte_flow_classify.c:642:13: error: use of undeclared identifier 'ENODATA'
        int ret = -ENODATA;


Thanks,
Jasvinder


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