[PATCH v8 2/3] ethdev: add VXLAN last reserved field

[Rongwei Liu <rongweil@nvidia.com>]

Add "uint8_t last_rsvd" as union with origin rsvd1.
Add RTE_FLOW_FIELD_VXLAN_LAST_RSVD into rte flow packet
field.

The new union is used by testpmd matching item VXLAN
"last_rsvd" and modify target RTE_FLOW_FIELD_VXLAN_LAST_RSVD.

Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
Acked-by: Dariusz Sosnowski <dsosnowski@nvidia.com>
Acked-by: Thomas Monjalon <thomas@monjalon.net>
---
 app/test-pmd/cmdline_flow.c | 5 +++--
 lib/ethdev/rte_flow.h       | 1 +
 lib/net/rte_vxlan.h         | 5 ++++-
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/app/test-pmd/cmdline_flow.c b/app/test-pmd/cmdline_flow.c
index 775ce20fc4..99e2db04df 100644
--- a/app/test-pmd/cmdline_flow.c
+++ b/app/test-pmd/cmdline_flow.c
@@ -1006,6 +1006,7 @@ static const char *const flow_field_ids[] = {
 	"ipv6_flow_label", "ipv6_traffic_class",
 	"esp_spi", "esp_seq_num", "esp_proto",
 	"random",
+	"vxlan_last_rsvd",
 	NULL
 };
 
@@ -4912,11 +4913,11 @@ static const struct token token_list[] = {
 	},
 	[ITEM_VXLAN_LAST_RSVD] = {
 		.name = "last_rsvd",
-		.help = "VXLAN last reserved bits",
+		.help = "VXLAN last reserved byte",
 		.next = NEXT(item_vxlan, NEXT_ENTRY(COMMON_UNSIGNED),
 			     item_param),
 		.args = ARGS(ARGS_ENTRY_HTON(struct rte_flow_item_vxlan,
-					     hdr.rsvd1)),
+					     hdr.last_rsvd)),
 	},
 	[ITEM_E_TAG] = {
 		.name = "e_tag",
diff --git a/lib/ethdev/rte_flow.h b/lib/ethdev/rte_flow.h
index 6e8ab1d4c7..74cf2e0f59 100644
--- a/lib/ethdev/rte_flow.h
+++ b/lib/ethdev/rte_flow.h
@@ -2428,6 +2428,7 @@ enum rte_flow_field_id {
 	RTE_FLOW_FIELD_ESP_SEQ_NUM,     /**< ESP Sequence Number. */
 	RTE_FLOW_FIELD_ESP_PROTO,       /**< ESP next protocol value. */
 	RTE_FLOW_FIELD_RANDOM,          /**< Random value. */
+	RTE_FLOW_FIELD_VXLAN_LAST_RSVD, /**< VXLAN last reserved byte. */
 };
 
 /**
diff --git a/lib/net/rte_vxlan.h b/lib/net/rte_vxlan.h
index 997fc784fc..57300fb442 100644
--- a/lib/net/rte_vxlan.h
+++ b/lib/net/rte_vxlan.h
@@ -41,7 +41,10 @@ struct rte_vxlan_hdr {
 			uint8_t    flags;    /**< Should be 8 (I flag). */
 			uint8_t    rsvd0[3]; /**< Reserved. */
 			uint8_t    vni[3];   /**< VXLAN identifier. */
-			uint8_t    rsvd1;    /**< Reserved. */
+			union {
+				uint8_t    rsvd1;        /**< Reserved. */
+				uint8_t    last_rsvd;    /**< Reserved. */
+			};
 		};
 	};
 } __rte_packed;
-- 
2.27.0