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> -----Original Message-----
> From: Suanming Mou <suanmi...@nvidia.com>
> Sent: Tuesday, August 9, 2022 9:26 PM
> To: dev@dpdk.org
> Cc: Ori Kam <or...@nvidia.com>; Xiaoyun Li <xiaoyun...@intel.com>; Aman
> Singh <aman.deep.si...@intel.com>; Yuying Zhang <yuying.zh...@intel.com>;
> NBU-Contact-Thomas Monjalon (EXTERNAL) <tho...@monjalon.net>; Ferruh
> Yigit <ferruh.yi...@xilinx.com>; Andrew Rybchenko
> <andrew.rybche...@oktetlabs.ru>
> Subject: [RFC] ethdev: add async flow connection tracking configuration
>
> In queue based async flow engine, in order to optimize the flow insertion
> rate,
> PMD can use the hints from application to have resources pre-allocate during
> initialization phase for actions such as count/meter/aging.
>
> This commit adds the connection tracking action hints.
>
> Signed-off-by: Suanming Mou <suanmi...@nvidia.com>
> ---
> app/test-pmd/cmdline_flow.c | 10 ++++++++++
> doc/guides/rel_notes/release_22_11.rst | 6 ++++++
> lib/ethdev/rte_flow.h | 10 ++++++++++
> 3 files changed, 26 insertions(+)
>
> diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c index
> 7f50028eb7..c9cbf381c4 100644
> --- a/app/test-pmd/cmdline_flow.c
> +++ b/app/test-pmd/cmdline_flow.c
> @@ -219,6 +219,7 @@ enum index {
> CONFIG_COUNTERS_NUMBER,
> CONFIG_AGING_OBJECTS_NUMBER,
> CONFIG_METERS_NUMBER,
> + CONFIG_CONN_TRACK_NUMBER,
>
> /* Indirect action arguments */
> INDIRECT_ACTION_CREATE,
> @@ -1081,6 +1082,7 @@ static const enum index next_config_attr[] = {
> CONFIG_COUNTERS_NUMBER,
> CONFIG_AGING_OBJECTS_NUMBER,
> CONFIG_METERS_NUMBER,
> + CONFIG_CONN_TRACK_NUMBER,
> END,
> ZERO,
> };
> @@ -2667,6 +2669,14 @@ static const struct token token_list[] = {
> .args = ARGS(ARGS_ENTRY(struct buffer,
> args.configure.port_attr.nb_meters)),
> },
> + [CONFIG_CONN_TRACK_NUMBER] = {
> + .name = "conn_tracks_number",
> + .help = "number of connection trackings",
> + .next = NEXT(next_config_attr,
> + NEXT_ENTRY(COMMON_UNSIGNED)),
> + .args = ARGS(ARGS_ENTRY(struct buffer,
> +
> args.configure.port_attr.nb_conn_tracks)),
> + },
> /* Top-level command. */
> [PATTERN_TEMPLATE] = {
> .name = "pattern_template",
> diff --git a/doc/guides/rel_notes/release_22_11.rst
> b/doc/guides/rel_notes/release_22_11.rst
> index 8c021cf050..c396bfca5f 100644
> --- a/doc/guides/rel_notes/release_22_11.rst
> +++ b/doc/guides/rel_notes/release_22_11.rst
> @@ -55,6 +55,12 @@ New Features
> Also, make sure to start the actual text at the margin.
> =======================================================
>
> +* **Added configuration for asynchronous flow connection tracking.**
> +
> + Added connection tracking action number hint to
> + ``rte_flow_configure`` and ``rte_flow_info_get``.
> + PMD can prepare the connection tracking resources accroding to the hint.
> +
>
> Removed Items
> -------------
> diff --git a/lib/ethdev/rte_flow.h b/lib/ethdev/rte_flow.h index
> a79f1e7ef0..c2747abc55 100644
> --- a/lib/ethdev/rte_flow.h
> +++ b/lib/ethdev/rte_flow.h
> @@ -4902,6 +4902,11 @@ struct rte_flow_port_info {
> * @see RTE_FLOW_ACTION_TYPE_METER
> */
> uint32_t max_nb_meters;
> + /**
> + * Maximum number connection trackings.
> + * @see RTE_FLOW_ACTION_TYPE_CONNTRACK
> + */
> + uint32_t max_nb_conn_tracks;
> };
>
> /**
> @@ -4971,6 +4976,11 @@ struct rte_flow_port_attr {
> * @see RTE_FLOW_ACTION_TYPE_METER
> */
> uint32_t nb_meters;
> + /**
> + * Number of connection trackings to configure.
> + * @see RTE_FLOW_ACTION_TYPE_CONNTRACK
> + */
> + uint32_t nb_conn_tracks;
> };
>
> /**
> --
> 2.25.1
