[PATCH v4 3/9] net/enetc: support ESP packet type in packet parsing

[Gagandeep Singh <g.singh@nxp.com>]

Add ESP (Encapsulating Security Payload) packet type definitions and
handling to the RX packet parsing path. Also update the supported
ptypes array to advertise ESP tunnel type support.

Signed-off-by: Gagandeep Singh <g.singh@nxp.com>
---
 doc/guides/rel_notes/release_26_07.rst |  3 +++
 drivers/net/enetc/base/enetc_hw.h      |  4 ++++
 drivers/net/enetc/enetc_ethdev.c       |  3 ++-
 drivers/net/enetc/enetc_rxtx.c         | 10 ++++++++++
 4 files changed, 19 insertions(+), 1 deletion(-)

diff --git a/doc/guides/rel_notes/release_26_07.rst b/doc/guides/rel_notes/release_26_07.rst
index fc6e144..35476c2 100644
--- a/doc/guides/rel_notes/release_26_07.rst
+++ b/doc/guides/rel_notes/release_26_07.rst
@@ -187,6 +187,9 @@ New Features
   ``RTE_ETH_EVENT_RECOVERY_FAILED``) to notify upper layers of the
   reset lifecycle.
 
+* **Updated NXP ENETC ethernet driver.**
+
+  * Added support for ESP packet type in packet parsing
 
 Removed Items
 -------------
diff --git a/drivers/net/enetc/base/enetc_hw.h b/drivers/net/enetc/base/enetc_hw.h
index 19efadd..f79c950 100644
--- a/drivers/net/enetc/base/enetc_hw.h
+++ b/drivers/net/enetc/base/enetc_hw.h
@@ -226,6 +226,10 @@ enum enetc_bdr_type {TX, RX};
 			(0x0003 | ENETC_PKT_TYPE_IPV4)
 #define ENETC_PKT_TYPE_IPV6_ICMP \
 			(0x0003 | ENETC_PKT_TYPE_IPV6)
+#define ENETC_PKT_TYPE_IPV4_ESP \
+			(0x0005 | ENETC_PKT_TYPE_IPV4)
+#define ENETC_PKT_TYPE_IPV6_ESP \
+			(0x0005 | ENETC_PKT_TYPE_IPV6)
 
 /* PCI device info */
 struct enetc_hw {
diff --git a/drivers/net/enetc/enetc_ethdev.c b/drivers/net/enetc/enetc_ethdev.c
index f41f3c1..8196377 100644
--- a/drivers/net/enetc/enetc_ethdev.c
+++ b/drivers/net/enetc/enetc_ethdev.c
@@ -1,5 +1,5 @@
 /* SPDX-License-Identifier: BSD-3-Clause
- * Copyright 2018-2024 NXP
+ * Copyright 2018-2026 NXP
  */
 
 #include <stdbool.h>
@@ -95,6 +95,7 @@ enetc_supported_ptypes_get(struct rte_eth_dev *dev __rte_unused,
 		RTE_PTYPE_L4_UDP,
 		RTE_PTYPE_L4_SCTP,
 		RTE_PTYPE_L4_ICMP,
+		RTE_PTYPE_TUNNEL_ESP
 	};
 
 	*no_of_elements = RTE_DIM(ptypes);
diff --git a/drivers/net/enetc/enetc_rxtx.c b/drivers/net/enetc/enetc_rxtx.c
index d3b98b3..94177bb 100644
--- a/drivers/net/enetc/enetc_rxtx.c
+++ b/drivers/net/enetc/enetc_rxtx.c
@@ -370,6 +370,16 @@ enetc_dev_rx_parse(struct rte_mbuf *m, uint16_t parse_results)
 				 RTE_PTYPE_L3_IPV6 |
 				 RTE_PTYPE_L4_UDP;
 		return;
+	case ENETC_PKT_TYPE_IPV4_ESP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV4 |
+				 RTE_PTYPE_TUNNEL_ESP;
+		return;
+	case ENETC_PKT_TYPE_IPV6_ESP:
+		m->packet_type = RTE_PTYPE_L2_ETHER |
+				 RTE_PTYPE_L3_IPV6 |
+				 RTE_PTYPE_TUNNEL_ESP;
+		return;
 	case ENETC_PKT_TYPE_IPV4_SCTP:
 		m->packet_type = RTE_PTYPE_L2_ETHER |
 				 RTE_PTYPE_L3_IPV4 |
-- 
2.25.1