[PATCH v3 2/3] app/testpmd: support metadata as flow rule criteria

[Dekel Peled <dekelp@mellanox.com>]

As described in [1], this series adds option to set metadata value as
match pattern when creating a new flow rule.

This patch introduces additional options in testpmd commands.
New item type "meta" "data", new offload flag "match_metadata".

[1] "ethdev: support metadata as flow rule criteria"

Signed-off-by: Dekel Peled <dekelp@mellanox.com>
---
 app/test-pmd/cmdline.c                      | 14 ++++++++------
 app/test-pmd/cmdline_flow.c                 | 25 +++++++++++++++++++++++++
 app/test-pmd/config.c                       |  1 +
 app/test-pmd/testpmd.c                      |  4 ++++
 doc/guides/testpmd_app_ug/testpmd_funcs.rst |  6 +++++-
 5 files changed, 43 insertions(+), 7 deletions(-)

diff --git a/app/test-pmd/cmdline.c b/app/test-pmd/cmdline.c
index 0cbd340..8cfde40 100644
--- a/app/test-pmd/cmdline.c
+++ b/app/test-pmd/cmdline.c
@@ -17401,7 +17401,8 @@ struct cmd_config_per_port_tx_offload_result {
 			  "sctp_cksum#tcp_tso#udp_tso#outer_ipv4_cksum#"
 			  "qinq_insert#vxlan_tnl_tso#gre_tnl_tso#"
 			  "ipip_tnl_tso#geneve_tnl_tso#macsec_insert#"
-			  "mt_lockfree#multi_segs#mbuf_fast_free#security");
+			  "mt_lockfree#multi_segs#mbuf_fast_free#security#"
+			  "match_metadata");
 cmdline_parse_token_string_t cmd_config_per_port_tx_offload_result_on_off =
 	TOKEN_STRING_INITIALIZER
 		(struct cmd_config_per_port_tx_offload_result,
@@ -17482,8 +17483,8 @@ struct cmd_config_per_port_tx_offload_result {
 		    "sctp_cksum|tcp_tso|udp_tso|outer_ipv4_cksum|"
 		    "qinq_insert|vxlan_tnl_tso|gre_tnl_tso|"
 		    "ipip_tnl_tso|geneve_tnl_tso|macsec_insert|"
-		    "mt_lockfree|multi_segs|mbuf_fast_free|security "
-		    "on|off",
+		    "mt_lockfree|multi_segs|mbuf_fast_free|security|"
+		    "match_metadata on|off",
 	.tokens = {
 		(void *)&cmd_config_per_port_tx_offload_result_port,
 		(void *)&cmd_config_per_port_tx_offload_result_config,
@@ -17533,7 +17534,8 @@ struct cmd_config_per_queue_tx_offload_result {
 			  "sctp_cksum#tcp_tso#udp_tso#outer_ipv4_cksum#"
 			  "qinq_insert#vxlan_tnl_tso#gre_tnl_tso#"
 			  "ipip_tnl_tso#geneve_tnl_tso#macsec_insert#"
-			  "mt_lockfree#multi_segs#mbuf_fast_free#security");
+			  "mt_lockfree#multi_segs#mbuf_fast_free#security#"
+			  "match_metadata");
 cmdline_parse_token_string_t cmd_config_per_queue_tx_offload_result_on_off =
 	TOKEN_STRING_INITIALIZER
 		(struct cmd_config_per_queue_tx_offload_result,
@@ -17586,8 +17588,8 @@ struct cmd_config_per_queue_tx_offload_result {
 		    "sctp_cksum|tcp_tso|udp_tso|outer_ipv4_cksum|"
 		    "qinq_insert|vxlan_tnl_tso|gre_tnl_tso|"
 		    "ipip_tnl_tso|geneve_tnl_tso|macsec_insert|"
-		    "mt_lockfree|multi_segs|mbuf_fast_free|security "
-		    "on|off",
+		    "mt_lockfree|multi_segs|mbuf_fast_free|security|"
+		    "match_metadata on|off",
 	.tokens = {
 		(void *)&cmd_config_per_queue_tx_offload_result_port,
 		(void *)&cmd_config_per_queue_tx_offload_result_port_id,
diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 349e822..8f997e4 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -178,6 +178,8 @@ enum index {
 	ITEM_ICMP6_ND_OPT_SLA_ETH_SLA,
 	ITEM_ICMP6_ND_OPT_TLA_ETH,
 	ITEM_ICMP6_ND_OPT_TLA_ETH_TLA,
+	ITEM_META,
+	ITEM_META_DATA,
 
 	/* Validate/create actions. */
 	ACTIONS,
@@ -540,6 +542,7 @@ struct parse_action_priv {
 	ITEM_ICMP6_ND_OPT,
 	ITEM_ICMP6_ND_OPT_SLA_ETH,
 	ITEM_ICMP6_ND_OPT_TLA_ETH,
+	ITEM_META,
 	ZERO,
 };
 
@@ -760,6 +763,12 @@ struct parse_action_priv {
 	ZERO,
 };
 
+static const enum index item_meta[] = {
+	ITEM_META_DATA,
+	ITEM_NEXT,
+	ZERO,
+};
+
 static const enum index next_action[] = {
 	ACTION_END,
 	ACTION_VOID,
@@ -1961,6 +1970,22 @@ static int comp_vc_action_rss_queue(struct context *, const struct token *,
 		.args = ARGS(ARGS_ENTRY_HTON
 			     (struct rte_flow_item_icmp6_nd_opt_tla_eth, tla)),
 	},
+	[ITEM_META] = {
+		.name = "meta",
+		.help = "match metadata header",
+		.priv = PRIV_ITEM(META, sizeof(struct rte_flow_item_meta)),
+		.next = NEXT(item_meta),
+		.call = parse_vc,
+	},
+	[ITEM_META_DATA] = {
+		.name = "data",
+		.help = "metadata value",
+		.next = NEXT(item_meta, NEXT_ENTRY(UNSIGNED), item_param),
+		.args = ARGS(ARGS_ENTRY_MASK_HTON(struct rte_flow_item_meta,
+							data,
+							"\xff\xff\xff\xff"
+							"\xff\xff\xff\xff")),
+	},
 
 	/* Validate/create actions. */
 	[ACTIONS] = {
diff --git a/app/test-pmd/config.c b/app/test-pmd/config.c
index 7d384d9..274c392 100644
--- a/app/test-pmd/config.c
+++ b/app/test-pmd/config.c
@@ -1043,6 +1043,7 @@ void print_valid_ports(void)
 		     sizeof(struct rte_flow_item_icmp6_nd_opt_sla_eth)),
 	MK_FLOW_ITEM(ICMP6_ND_OPT_TLA_ETH,
 		     sizeof(struct rte_flow_item_icmp6_nd_opt_tla_eth)),
+	MK_FLOW_ITEM(META, sizeof(struct rte_flow_item_meta)),
 };
 
 /** Pattern item specification types. */
diff --git a/app/test-pmd/testpmd.c b/app/test-pmd/testpmd.c
index 571ecb4..268a80c 100644
--- a/app/test-pmd/testpmd.c
+++ b/app/test-pmd/testpmd.c
@@ -742,6 +742,10 @@ static void eth_dev_event_callback(char *device_name,
 		      DEV_TX_OFFLOAD_MBUF_FAST_FREE))
 			port->dev_conf.txmode.offloads &=
 				~DEV_TX_OFFLOAD_MBUF_FAST_FREE;
+		if (!(port->dev_info.tx_offload_capa &
+			DEV_TX_OFFLOAD_MATCH_METADATA))
+			port->dev_conf.txmode.offloads &=
+				~DEV_TX_OFFLOAD_MATCH_METADATA;
 		if (numa_support) {
 			if (port_numa[pid] != NUMA_NO_CONFIG)
 				port_per_socket[port_numa[pid]]++;
diff --git a/doc/guides/testpmd_app_ug/testpmd_funcs.rst b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
index dde205a..853ab83 100644
--- a/doc/guides/testpmd_app_ug/testpmd_funcs.rst
+++ b/doc/guides/testpmd_app_ug/testpmd_funcs.rst
@@ -3511,11 +3511,15 @@ This section lists supported pattern items and their attributes, if any.
 
   - ``sla {MAC-48}``: source Ethernet LLA.
 
-- ``icmp6_nd_opt_sla_eth``: match ICMPv6 neighbor discovery target Ethernet
+- ``icmp6_nd_opt_tla_eth``: match ICMPv6 neighbor discovery target Ethernet
   link-layer address option.
 
   - ``tla {MAC-48}``: target Ethernet LLA.
 
+- ``meta``: match application specific metadata.
+
+  - ``data``: metadata value.
+
 Actions list
 ^^^^^^^^^^^^
 
-- 
1.8.3.1