net/ice: add support for Auxiliary IP Offset Rx descriptor

diff --git a/doc/guides/nics/ice.rst b/doc/guides/nics/ice.rst
index 9a9f4a6bb..ffaaad4e4 100644
--- a/doc/guides/nics/ice.rst
+++ b/doc/guides/nics/ice.rst
@@ -102,7 +102,7 @@  Runtime Config Options
   The grouping ``()`` can be omitted for single element group. If no queues are
   specified, PMD will use this protocol extraction type for all queues.
 
-  Protocol is : ``vlan, ipv4, ipv6, ipv6_flow, tcp``.
+  Protocol is : ``vlan, ipv4, ipv6, ipv6_flow, tcp, ip_offset``.
 
   .. code-block:: console
 
@@ -183,6 +183,18 @@  Runtime Config Options
 
   TCPHDR2 - Reserved
 
+  .. table:: Protocol extraction : ``ip_offset``
+
+   +----------------------------+----------------------------+
+   |           IPHDR2           |           IPHDR1           |
+   +============================+============================+
+   |       IPv6 HDR Offset      |       IPv4 HDR Offset      |
+   +----------------------------+----------------------------+
+
+  IPHDR1 - Outer/Single IPv4 Header offset.
+
+  IPHDR2 - Outer/Single IPv6 Header offset.
+
   Use ``rte_net_ice_dynf_proto_xtr_metadata_get`` to access the protocol
   extraction metadata, and use ``RTE_PKT_RX_DYNF_PROTO_XTR_*`` to get the
   metadata type of ``struct rte_mbuf::ol_flags``.
diff --git a/drivers/net/ice/base/ice_lan_tx_rx.h b/drivers/net/ice/base/ice_lan_tx_rx.h
index c47114d16..ec0c9f3ab 100644
--- a/drivers/net/ice/base/ice_lan_tx_rx.h
+++ b/drivers/net/ice/base/ice_lan_tx_rx.h
@@ -715,6 +715,7 @@  enum ice_rxdid {
 	ICE_RXDID_COMMS_AUX_IPV6	= 19,
 	ICE_RXDID_COMMS_AUX_IPV6_FLOW	= 20,
 	ICE_RXDID_COMMS_AUX_TCP		= 21,
+	ICE_RXDID_COMMS_AUX_IP_OFFSET   = 25,
 	ICE_RXDID_LAST			= 63,
 };
 
diff --git a/drivers/net/ice/ice_ethdev.c b/drivers/net/ice/ice_ethdev.c
index d67390f29..4a161ae8a 100644
--- a/drivers/net/ice/ice_ethdev.c
+++ b/drivers/net/ice/ice_ethdev.c
@@ -65,6 +65,9 @@  static struct proto_xtr_ol_flag ice_proto_xtr_ol_flag_params[] = {
 	[PROTO_XTR_TCP] = {
 		.param = { .name = "ice_dynflag_proto_xtr_tcp" },
 		.ol_flag = &rte_net_ice_dynflag_proto_xtr_tcp_mask },
+	[PROTO_XTR_IP_OFFSET] = {
+		.param = { .name = "ice_dynflag_proto_xtr_ip_offset" },
+		.ol_flag = &rte_net_ice_dynflag_proto_xtr_ip_offset_mask },
 };
 
 #define ICE_DFLT_OUTER_TAG_TYPE ICE_AQ_VSI_OUTER_TAG_VLAN_9100
@@ -323,6 +326,7 @@  lookup_proto_xtr_type(const char *xtr_name)
 		{ "ipv6",      PROTO_XTR_IPV6      },
 		{ "ipv6_flow", PROTO_XTR_IPV6_FLOW },
 		{ "tcp",       PROTO_XTR_TCP       },
+		{ "ip_offset", PROTO_XTR_IP_OFFSET },
 	};
 	uint32_t i;
 
@@ -568,6 +572,10 @@  ice_check_proto_xtr_support(struct ice_hw *hw)
 		[PROTO_XTR_TCP] = { ICE_RXDID_COMMS_AUX_TCP,
 				    ICE_RX_OPC_EXTRACT,
 				    ICE_PROT_TCP_IL, ICE_PROT_ID_INVAL },
+		[PROTO_XTR_IP_OFFSET] = { ICE_RXDID_COMMS_AUX_IP_OFFSET,
+					  ICE_RX_OPC_PROTID,
+					  ICE_PROT_IPV4_OF_OR_S,
+					  ICE_PROT_IPV6_OF_OR_S },
 	};
 	uint32_t i;
 
@@ -5145,7 +5153,7 @@  RTE_PMD_REGISTER_PCI(net_ice, rte_ice_pmd);
 RTE_PMD_REGISTER_PCI_TABLE(net_ice, pci_id_ice_map);
 RTE_PMD_REGISTER_KMOD_DEP(net_ice, "* igb_uio | uio_pci_generic | vfio-pci");
 RTE_PMD_REGISTER_PARAM_STRING(net_ice,
-			      ICE_PROTO_XTR_ARG "=[queue:]<vlan|ipv4|ipv6|ipv6_flow|tcp>"
+			      ICE_PROTO_XTR_ARG "=[queue:]<vlan|ipv4|ipv6|ipv6_flow|tcp|ip_offset>"
 			      ICE_SAFE_MODE_SUPPORT_ARG "=<0|1>"
 			      ICE_PIPELINE_MODE_SUPPORT_ARG "=<0|1>"
 			      ICE_FLOW_MARK_SUPPORT_ARG "=<0|1>");
diff --git a/drivers/net/ice/ice_ethdev.h b/drivers/net/ice/ice_ethdev.h
index 06b9b8683..758caa8b4 100644
--- a/drivers/net/ice/ice_ethdev.h
+++ b/drivers/net/ice/ice_ethdev.h
@@ -262,6 +262,7 @@  enum proto_xtr_type {
 	PROTO_XTR_IPV6,
 	PROTO_XTR_IPV6_FLOW,
 	PROTO_XTR_TCP,
+	PROTO_XTR_IP_OFFSET,
 	PROTO_XTR_MAX /* The last one */
 };
 
diff --git a/drivers/net/ice/ice_rxtx.c b/drivers/net/ice/ice_rxtx.c
index 2e1f06d2c..53dfef014 100644
--- a/drivers/net/ice/ice_rxtx.c
+++ b/drivers/net/ice/ice_rxtx.c
@@ -23,27 +23,40 @@  uint64_t rte_net_ice_dynflag_proto_xtr_ipv4_mask;
 uint64_t rte_net_ice_dynflag_proto_xtr_ipv6_mask;
 uint64_t rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask;
 uint64_t rte_net_ice_dynflag_proto_xtr_tcp_mask;
+uint64_t rte_net_ice_dynflag_proto_xtr_ip_offset_mask;
 
 static inline uint64_t
-ice_rxdid_to_proto_xtr_ol_flag(uint8_t rxdid)
-{
-	static uint64_t *ol_flag_map[] = {
-		[ICE_RXDID_COMMS_AUX_VLAN] =
-				&rte_net_ice_dynflag_proto_xtr_vlan_mask,
-		[ICE_RXDID_COMMS_AUX_IPV4] =
-				&rte_net_ice_dynflag_proto_xtr_ipv4_mask,
-		[ICE_RXDID_COMMS_AUX_IPV6] =
-				&rte_net_ice_dynflag_proto_xtr_ipv6_mask,
-		[ICE_RXDID_COMMS_AUX_IPV6_FLOW] =
-				&rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask,
-		[ICE_RXDID_COMMS_AUX_TCP] =
-				&rte_net_ice_dynflag_proto_xtr_tcp_mask,
+ice_rxdid_to_proto_xtr_ol_flag(uint8_t rxdid, bool *chk_valid)
+{
+	static struct {
+		uint64_t *ol_flag;
+		bool chk_valid;
+	} ol_flag_map[] = {
+		[ICE_RXDID_COMMS_AUX_VLAN] = {
+			&rte_net_ice_dynflag_proto_xtr_vlan_mask, true },
+		[ICE_RXDID_COMMS_AUX_IPV4] = {
+			&rte_net_ice_dynflag_proto_xtr_ipv4_mask, true },
+		[ICE_RXDID_COMMS_AUX_IPV6] = {
+			&rte_net_ice_dynflag_proto_xtr_ipv6_mask, true },
+		[ICE_RXDID_COMMS_AUX_IPV6_FLOW] = {
+			&rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask, true },
+		[ICE_RXDID_COMMS_AUX_TCP] = {
+			&rte_net_ice_dynflag_proto_xtr_tcp_mask, true },
+		[ICE_RXDID_COMMS_AUX_IP_OFFSET] = {
+			&rte_net_ice_dynflag_proto_xtr_ip_offset_mask, false },
 	};
 	uint64_t *ol_flag;
 
-	ol_flag = rxdid < RTE_DIM(ol_flag_map) ? ol_flag_map[rxdid] : NULL;
+	if (rxdid < RTE_DIM(ol_flag_map)) {
+		ol_flag = ol_flag_map[rxdid].ol_flag;
+		if (!ol_flag)
+			return 0ULL;
 
-	return ol_flag != NULL ? *ol_flag : 0ULL;
+		*chk_valid = ol_flag_map[rxdid].chk_valid;
+		return *ol_flag;
+	}
+
+	return 0ULL;
 }
 
 static inline uint8_t
@@ -56,6 +69,7 @@  ice_proto_xtr_type_to_rxdid(uint8_t xtr_type)
 		[PROTO_XTR_IPV6]      = ICE_RXDID_COMMS_AUX_IPV6,
 		[PROTO_XTR_IPV6_FLOW] = ICE_RXDID_COMMS_AUX_IPV6_FLOW,
 		[PROTO_XTR_TCP]       = ICE_RXDID_COMMS_AUX_TCP,
+		[PROTO_XTR_IP_OFFSET] = ICE_RXDID_COMMS_AUX_IP_OFFSET,
 	};
 
 	return xtr_type < RTE_DIM(rxdid_map) ?
@@ -1312,23 +1326,36 @@  ice_rxd_to_proto_xtr(struct rte_mbuf *mb,
 		     volatile struct ice_32b_rx_flex_desc_comms *desc)
 {
 	uint16_t stat_err = rte_le_to_cpu_16(desc->status_error1);
-	uint32_t metadata;
+	uint32_t metadata = 0;
 	uint64_t ol_flag;
+	bool chk_valid;
 
-	if (unlikely(!(stat_err & ICE_RX_PROTO_XTR_VALID)))
-		return;
-
-	ol_flag = ice_rxdid_to_proto_xtr_ol_flag(desc->rxdid);
+	ol_flag = ice_rxdid_to_proto_xtr_ol_flag(desc->rxdid, &chk_valid);
 	if (unlikely(!ol_flag))
 		return;
 
-	mb->ol_flags |= ol_flag;
+	if (chk_valid) {
+		if (stat_err & (1 << ICE_RX_FLEX_DESC_STATUS1_XTRMD4_VALID_S))
+			metadata = rte_le_to_cpu_16(desc->flex_ts.flex.aux0);
+
+		if (stat_err & (1 << ICE_RX_FLEX_DESC_STATUS1_XTRMD5_VALID_S))
+			metadata |=
+				rte_le_to_cpu_16(desc->flex_ts.flex.aux1) << 16;
+	} else {
+		/**
+		 * No need to check XTR_MD.#_VLD bit in Status/Error fields for
+		 * Protocol Offset according to CPK HAS 7.9.8.
+		 */
+		if (rte_le_to_cpu_16(desc->flex_ts.flex.aux0) != 0xFFFF)
+			metadata = rte_le_to_cpu_16(desc->flex_ts.flex.aux0);
+		else if (rte_le_to_cpu_16(desc->flex_ts.flex.aux1) != 0xFFFF)
+			metadata = rte_le_to_cpu_16(desc->flex_ts.flex.aux1);
+	}
 
-	metadata = stat_err & (1 << ICE_RX_FLEX_DESC_STATUS1_XTRMD4_VALID_S) ?
-				rte_le_to_cpu_16(desc->flex_ts.flex.aux0) : 0;
+	if (!metadata)
+		return;
 
-	if (likely(stat_err & (1 << ICE_RX_FLEX_DESC_STATUS1_XTRMD5_VALID_S)))
-		metadata |= rte_le_to_cpu_16(desc->flex_ts.flex.aux1) << 16;
+	mb->ol_flags |= ol_flag;
 
 	*RTE_NET_ICE_DYNF_PROTO_XTR_METADATA(mb) = metadata;
 }
diff --git a/drivers/net/ice/rte_pmd_ice.h b/drivers/net/ice/rte_pmd_ice.h
index e254db053..9a436a140 100644
--- a/drivers/net/ice/rte_pmd_ice.h
+++ b/drivers/net/ice/rte_pmd_ice.h
@@ -78,6 +78,8 @@  union rte_net_ice_proto_xtr_metadata {
 			 doff:4;
 		uint16_t rsvd;
 	} tcp;
+
+	uint32_t ip_ofs;
 };
 
 /* Offset of mbuf dynamic field for protocol extraction data */
@@ -89,6 +91,7 @@  extern uint64_t rte_net_ice_dynflag_proto_xtr_ipv4_mask;
 extern uint64_t rte_net_ice_dynflag_proto_xtr_ipv6_mask;
 extern uint64_t rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask;
 extern uint64_t rte_net_ice_dynflag_proto_xtr_tcp_mask;
+extern uint64_t rte_net_ice_dynflag_proto_xtr_ip_offset_mask;
 
 /**
  * The mbuf dynamic field pointer for protocol extraction metadata.
@@ -133,6 +136,13 @@  extern uint64_t rte_net_ice_dynflag_proto_xtr_tcp_mask;
 #define RTE_PKT_RX_DYNF_PROTO_XTR_TCP \
 	(rte_net_ice_dynflag_proto_xtr_tcp_mask)
 
+/**
+ * The mbuf dynamic flag for IP_OFFSET extraction metadata, it is valid
+ * when dev_args 'proto_xtr' has 'ip_offset' specified.
+ */
+#define RTE_PKT_RX_DYNF_PROTO_XTR_IP_OFFSET \
+	(rte_net_ice_dynflag_proto_xtr_ip_offset_mask)
+
 /**
  * Check if mbuf dynamic field for protocol extraction metadata is registered.
  *
@@ -222,6 +232,9 @@  rte_net_ice_dump_proto_xtr_metadata(struct rte_mbuf *m)
 		       data.tcp.rst ? "R" : "",
 		       data.tcp.syn ? "S" : "",
 		       data.tcp.fin ? "F" : "");
+	else if (m->ol_flags & RTE_PKT_RX_DYNF_PROTO_XTR_IP_OFFSET)
+		printf(" - Protocol Offset:ip_offset=%u",
+		       data.ip_ofs);
 }
 
 #ifdef __cplusplus
diff --git a/drivers/net/ice/rte_pmd_ice_version.map b/drivers/net/ice/rte_pmd_ice_version.map
index 91f40225e..632a296a0 100644
--- a/drivers/net/ice/rte_pmd_ice_version.map
+++ b/drivers/net/ice/rte_pmd_ice_version.map
@@ -12,4 +12,5 @@  EXPERIMENTAL {
 	rte_net_ice_dynflag_proto_xtr_ipv6_mask;
 	rte_net_ice_dynflag_proto_xtr_ipv6_flow_mask;
 	rte_net_ice_dynflag_proto_xtr_tcp_mask;
+	rte_net_ice_dynflag_proto_xtr_ip_offset_mask;
 };