[dpdk-dev] [PATCH 09/44] net/cnxk: add packet type support

[Nithin Dabilpuram <ndabilpuram@marvell.com>]

Add support for packet type lookup on Rx to translate HW
specific types to  RTE_PTYPE_* defines

Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
---
 doc/guides/nics/cnxk.rst              |   1 +
 doc/guides/nics/features/cnxk.ini     |   1 +
 doc/guides/nics/features/cnxk_vec.ini |   1 +
 doc/guides/nics/features/cnxk_vf.ini  |   1 +
 drivers/net/cnxk/cn10k_ethdev.c       |  21 +++
 drivers/net/cnxk/cn10k_rx.h           |  11 ++
 drivers/net/cnxk/cn9k_ethdev.c        |  21 +++
 drivers/net/cnxk/cn9k_rx.h            |  12 ++
 drivers/net/cnxk/cnxk_ethdev.c        |   2 +
 drivers/net/cnxk/cnxk_ethdev.h        |  14 ++
 drivers/net/cnxk/cnxk_lookup.c        | 326 ++++++++++++++++++++++++++++++++++
 drivers/net/cnxk/meson.build          |   3 +-
 12 files changed, 413 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/cnxk/cn10k_rx.h
 create mode 100644 drivers/net/cnxk/cn9k_rx.h
 create mode 100644 drivers/net/cnxk/cnxk_lookup.c

diff --git a/doc/guides/nics/cnxk.rst b/doc/guides/nics/cnxk.rst
index a982450..4f1b58c 100644
--- a/doc/guides/nics/cnxk.rst
+++ b/doc/guides/nics/cnxk.rst
@@ -16,6 +16,7 @@ Features
 
 Features of the CNXK Ethdev PMD are:
 
+- Packet type information
 - SR-IOV VF
 - Lock-free Tx queue
 - Multiple queues for TX and RX
diff --git a/doc/guides/nics/features/cnxk.ini b/doc/guides/nics/features/cnxk.ini
index 462d7c4..503582c 100644
--- a/doc/guides/nics/features/cnxk.ini
+++ b/doc/guides/nics/features/cnxk.ini
@@ -14,6 +14,7 @@ Runtime Rx queue setup = Y
 Runtime Tx queue setup = Y
 RSS hash             = Y
 Inner RSS            = Y
+Packet type parsing  = Y
 Linux                = Y
 ARMv8                = Y
 Usage doc            = Y
diff --git a/doc/guides/nics/features/cnxk_vec.ini b/doc/guides/nics/features/cnxk_vec.ini
index 09e0d3a..9ad225a 100644
--- a/doc/guides/nics/features/cnxk_vec.ini
+++ b/doc/guides/nics/features/cnxk_vec.ini
@@ -14,6 +14,7 @@ Runtime Rx queue setup = Y
 Runtime Tx queue setup = Y
 RSS hash             = Y
 Inner RSS            = Y
+Packet type parsing  = Y
 Linux                = Y
 ARMv8                = Y
 Usage doc            = Y
diff --git a/doc/guides/nics/features/cnxk_vf.ini b/doc/guides/nics/features/cnxk_vf.ini
index 4a93a35..8c93ba7 100644
--- a/doc/guides/nics/features/cnxk_vf.ini
+++ b/doc/guides/nics/features/cnxk_vf.ini
@@ -13,6 +13,7 @@ Runtime Rx queue setup = Y
 Runtime Tx queue setup = Y
 RSS hash             = Y
 Inner RSS            = Y
+Packet type parsing  = Y
 Linux                = Y
 ARMv8                = Y
 Usage doc            = Y
diff --git a/drivers/net/cnxk/cn10k_ethdev.c b/drivers/net/cnxk/cn10k_ethdev.c
index e194b13..efd5b67 100644
--- a/drivers/net/cnxk/cn10k_ethdev.c
+++ b/drivers/net/cnxk/cn10k_ethdev.c
@@ -2,8 +2,25 @@
  * Copyright(C) 2021 Marvell.
  */
 #include "cn10k_ethdev.h"
+#include "cn10k_rx.h"
 #include "cn10k_tx.h"
 
+static int
+cn10k_nix_ptypes_set(struct rte_eth_dev *eth_dev, uint32_t ptype_mask)
+{
+	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
+
+	if (ptype_mask) {
+		dev->rx_offload_flags |= NIX_RX_OFFLOAD_PTYPE_F;
+		dev->ptype_disable = 0;
+	} else {
+		dev->rx_offload_flags &= ~NIX_RX_OFFLOAD_PTYPE_F;
+		dev->ptype_disable = 1;
+	}
+
+	return 0;
+}
+
 static void
 nix_form_default_desc(struct cnxk_eth_dev *dev, struct cn10k_eth_txq *txq,
 		      uint16_t qid)
@@ -113,6 +130,9 @@ cn10k_nix_rx_queue_setup(struct rte_eth_dev *eth_dev, uint16_t qid,
 	/* Data offset from data to start of mbuf is first_skip */
 	rxq->data_off = rq->first_skip;
 	rxq->mbuf_initializer = cnxk_nix_rxq_mbuf_setup(dev);
+
+	/* Lookup mem */
+	rxq->lookup_mem = cnxk_nix_fastpath_lookup_mem_get();
 	return 0;
 }
 
@@ -148,6 +168,7 @@ nix_eth_dev_ops_override(void)
 	cnxk_eth_dev_ops.dev_configure = cn10k_nix_configure;
 	cnxk_eth_dev_ops.tx_queue_setup = cn10k_nix_tx_queue_setup;
 	cnxk_eth_dev_ops.rx_queue_setup = cn10k_nix_rx_queue_setup;
+	cnxk_eth_dev_ops.dev_ptypes_set = cn10k_nix_ptypes_set;
 }
 
 static int
diff --git a/drivers/net/cnxk/cn10k_rx.h b/drivers/net/cnxk/cn10k_rx.h
new file mode 100644
index 0000000..d3d1661
--- /dev/null
+++ b/drivers/net/cnxk/cn10k_rx.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+#ifndef __CN10K_RX_H__
+#define __CN10K_RX_H__
+
+#include <rte_ether.h>
+
+#define NIX_RX_OFFLOAD_PTYPE_F	     BIT(1)
+
+#endif /* __CN10K_RX_H__ */
diff --git a/drivers/net/cnxk/cn9k_ethdev.c b/drivers/net/cnxk/cn9k_ethdev.c
index e97ce15..3f3de4f 100644
--- a/drivers/net/cnxk/cn9k_ethdev.c
+++ b/drivers/net/cnxk/cn9k_ethdev.c
@@ -2,8 +2,25 @@
  * Copyright(C) 2021 Marvell.
  */
 #include "cn9k_ethdev.h"
+#include "cn9k_rx.h"
 #include "cn9k_tx.h"
 
+static int
+cn9k_nix_ptypes_set(struct rte_eth_dev *eth_dev, uint32_t ptype_mask)
+{
+	struct cnxk_eth_dev *dev = cnxk_eth_pmd_priv(eth_dev);
+
+	if (ptype_mask) {
+		dev->rx_offload_flags |= NIX_RX_OFFLOAD_PTYPE_F;
+		dev->ptype_disable = 0;
+	} else {
+		dev->rx_offload_flags &= ~NIX_RX_OFFLOAD_PTYPE_F;
+		dev->ptype_disable = 1;
+	}
+
+	return 0;
+}
+
 static void
 nix_form_default_desc(struct cnxk_eth_dev *dev, struct cn9k_eth_txq *txq,
 		      uint16_t qid)
@@ -111,6 +128,9 @@ cn9k_nix_rx_queue_setup(struct rte_eth_dev *eth_dev, uint16_t qid,
 	/* Data offset from data to start of mbuf is first_skip */
 	rxq->data_off = rq->first_skip;
 	rxq->mbuf_initializer = cnxk_nix_rxq_mbuf_setup(dev);
+
+	/* Lookup mem */
+	rxq->lookup_mem = cnxk_nix_fastpath_lookup_mem_get();
 	return 0;
 }
 
@@ -157,6 +177,7 @@ nix_eth_dev_ops_override(void)
 	cnxk_eth_dev_ops.dev_configure = cn9k_nix_configure;
 	cnxk_eth_dev_ops.tx_queue_setup = cn9k_nix_tx_queue_setup;
 	cnxk_eth_dev_ops.rx_queue_setup = cn9k_nix_rx_queue_setup;
+	cnxk_eth_dev_ops.dev_ptypes_set = cn9k_nix_ptypes_set;
 }
 
 static int
diff --git a/drivers/net/cnxk/cn9k_rx.h b/drivers/net/cnxk/cn9k_rx.h
new file mode 100644
index 0000000..95a1e69
--- /dev/null
+++ b/drivers/net/cnxk/cn9k_rx.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+
+#ifndef __CN9K_RX_H__
+#define __CN9K_RX_H__
+
+#include <rte_ether.h>
+
+#define NIX_RX_OFFLOAD_PTYPE_F	     BIT(1)
+
+#endif /* __CN9K_RX_H__ */
diff --git a/drivers/net/cnxk/cnxk_ethdev.c b/drivers/net/cnxk/cnxk_ethdev.c
index 5772345..96acf90 100644
--- a/drivers/net/cnxk/cnxk_ethdev.c
+++ b/drivers/net/cnxk/cnxk_ethdev.c
@@ -825,6 +825,7 @@ struct eth_dev_ops cnxk_eth_dev_ops = {
 	.link_update = cnxk_nix_link_update,
 	.tx_queue_release = cnxk_nix_tx_queue_release,
 	.rx_queue_release = cnxk_nix_rx_queue_release,
+	.dev_supported_ptypes_get = cnxk_nix_supported_ptypes_get,
 };
 
 static int
@@ -865,6 +866,7 @@ cnxk_eth_dev_init(struct rte_eth_dev *eth_dev)
 
 	dev->eth_dev = eth_dev;
 	dev->configured = 0;
+	dev->ptype_disable = 0;
 
 	/* For vfs, returned max_entries will be 0. but to keep default mac
 	 * address, one entry must be allocated. so setting up to 1.
diff --git a/drivers/net/cnxk/cnxk_ethdev.h b/drivers/net/cnxk/cnxk_ethdev.h
index 90c8ff6..6b7261c 100644
--- a/drivers/net/cnxk/cnxk_ethdev.h
+++ b/drivers/net/cnxk/cnxk_ethdev.h
@@ -91,6 +91,15 @@
 #define RSS_SCTP_INDEX 4
 #define RSS_DMAC_INDEX 5
 
+#define PTYPE_NON_TUNNEL_WIDTH	  16
+#define PTYPE_TUNNEL_WIDTH	  12
+#define PTYPE_NON_TUNNEL_ARRAY_SZ BIT(PTYPE_NON_TUNNEL_WIDTH)
+#define PTYPE_TUNNEL_ARRAY_SZ	  BIT(PTYPE_TUNNEL_WIDTH)
+#define PTYPE_ARRAY_SZ                                                         \
+	((PTYPE_NON_TUNNEL_ARRAY_SZ + PTYPE_TUNNEL_ARRAY_SZ) * sizeof(uint16_t))
+/* Fastpath lookup */
+#define CNXK_NIX_FASTPATH_LOOKUP_MEM "cnxk_nix_fastpath_lookup_mem"
+
 struct cnxk_eth_qconf {
 	union {
 		struct rte_eth_txconf tx;
@@ -119,6 +128,7 @@ struct cnxk_eth_dev {
 	uint8_t max_mac_entries;
 
 	uint16_t flags;
+	uint8_t ptype_disable;
 	bool scalar_ena;
 
 	/* Pointer back to rte */
@@ -201,6 +211,10 @@ void cnxk_eth_dev_link_status_cb(struct roc_nix *nix,
 				 struct roc_nix_link_info *link);
 int cnxk_nix_link_update(struct rte_eth_dev *eth_dev, int wait_to_complete);
 
+/* Lookup configuration */
+const uint32_t *cnxk_nix_supported_ptypes_get(struct rte_eth_dev *eth_dev);
+void *cnxk_nix_fastpath_lookup_mem_get(void);
+
 /* Devargs */
 int cnxk_ethdev_parse_devargs(struct rte_devargs *devargs,
 			      struct cnxk_eth_dev *dev);
diff --git a/drivers/net/cnxk/cnxk_lookup.c b/drivers/net/cnxk/cnxk_lookup.c
new file mode 100644
index 0000000..a9e51e5
--- /dev/null
+++ b/drivers/net/cnxk/cnxk_lookup.c
@@ -0,0 +1,326 @@
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(C) 2021 Marvell.
+ */
+
+#include <rte_common.h>
+#include <rte_memzone.h>
+
+#include "cnxk_ethdev.h"
+
+/* NIX_RX_PARSE_S's ERRCODE + ERRLEV (12 bits) */
+#define ERRCODE_ERRLEN_WIDTH 12
+#define ERR_ARRAY_SZ	     ((BIT(ERRCODE_ERRLEN_WIDTH)) * sizeof(uint32_t))
+
+#define SA_TBL_SZ	(RTE_MAX_ETHPORTS * sizeof(uint64_t))
+#define LOOKUP_ARRAY_SZ (PTYPE_ARRAY_SZ + ERR_ARRAY_SZ + SA_TBL_SZ)
+const uint32_t *
+cnxk_nix_supported_ptypes_get(struct rte_eth_dev *eth_dev)
+{
+	RTE_SET_USED(eth_dev);
+
+	static const uint32_t ptypes[] = {
+		RTE_PTYPE_L2_ETHER_QINQ,      /* LB */
+		RTE_PTYPE_L2_ETHER_VLAN,      /* LB */
+		RTE_PTYPE_L2_ETHER_TIMESYNC,  /* LB */
+		RTE_PTYPE_L2_ETHER_ARP,	      /* LC */
+		RTE_PTYPE_L2_ETHER_NSH,	      /* LC */
+		RTE_PTYPE_L2_ETHER_FCOE,      /* LC */
+		RTE_PTYPE_L2_ETHER_MPLS,      /* LC */
+		RTE_PTYPE_L3_IPV4,	      /* LC */
+		RTE_PTYPE_L3_IPV4_EXT,	      /* LC */
+		RTE_PTYPE_L3_IPV6,	      /* LC */
+		RTE_PTYPE_L3_IPV6_EXT,	      /* LC */
+		RTE_PTYPE_L4_TCP,	      /* LD */
+		RTE_PTYPE_L4_UDP,	      /* LD */
+		RTE_PTYPE_L4_SCTP,	      /* LD */
+		RTE_PTYPE_L4_ICMP,	      /* LD */
+		RTE_PTYPE_L4_IGMP,	      /* LD */
+		RTE_PTYPE_TUNNEL_GRE,	      /* LD */
+		RTE_PTYPE_TUNNEL_ESP,	      /* LD */
+		RTE_PTYPE_TUNNEL_NVGRE,	      /* LD */
+		RTE_PTYPE_TUNNEL_VXLAN,	      /* LE */
+		RTE_PTYPE_TUNNEL_GENEVE,      /* LE */
+		RTE_PTYPE_TUNNEL_GTPC,	      /* LE */
+		RTE_PTYPE_TUNNEL_GTPU,	      /* LE */
+		RTE_PTYPE_TUNNEL_VXLAN_GPE,   /* LE */
+		RTE_PTYPE_TUNNEL_MPLS_IN_GRE, /* LE */
+		RTE_PTYPE_TUNNEL_MPLS_IN_UDP, /* LE */
+		RTE_PTYPE_INNER_L2_ETHER,     /* LF */
+		RTE_PTYPE_INNER_L3_IPV4,      /* LG */
+		RTE_PTYPE_INNER_L3_IPV6,      /* LG */
+		RTE_PTYPE_INNER_L4_TCP,	      /* LH */
+		RTE_PTYPE_INNER_L4_UDP,	      /* LH */
+		RTE_PTYPE_INNER_L4_SCTP,      /* LH */
+		RTE_PTYPE_INNER_L4_ICMP,      /* LH */
+		RTE_PTYPE_UNKNOWN,
+	};
+
+	return ptypes;
+}
+
+/*
+ * +------------------ +------------------ +
+ * |  | IL4 | IL3| IL2 | TU | L4 | L3 | L2 |
+ * +-------------------+-------------------+
+ *
+ * +-------------------+------------------ +
+ * |  | LH | LG  | LF  | LE | LD | LC | LB |
+ * +-------------------+-------------------+
+ *
+ * ptype       [LE - LD - LC - LB]  = TU  - L4 -  L3  - T2
+ * ptype_tunnel[LH - LG - LF]  = IL4 - IL3 - IL2 - TU
+ *
+ */
+static void
+nix_create_non_tunnel_ptype_array(uint16_t *ptype)
+{
+	uint8_t lb, lc, ld, le;
+	uint16_t val;
+	uint32_t idx;
+
+	for (idx = 0; idx < PTYPE_NON_TUNNEL_ARRAY_SZ; idx++) {
+		lb = idx & 0xF;
+		lc = (idx & 0xF0) >> 4;
+		ld = (idx & 0xF00) >> 8;
+		le = (idx & 0xF000) >> 12;
+		val = RTE_PTYPE_UNKNOWN;
+
+		switch (lb) {
+		case NPC_LT_LB_STAG_QINQ:
+			val |= RTE_PTYPE_L2_ETHER_QINQ;
+			break;
+		case NPC_LT_LB_CTAG:
+			val |= RTE_PTYPE_L2_ETHER_VLAN;
+			break;
+		}
+
+		switch (lc) {
+		case NPC_LT_LC_ARP:
+			val |= RTE_PTYPE_L2_ETHER_ARP;
+			break;
+		case NPC_LT_LC_NSH:
+			val |= RTE_PTYPE_L2_ETHER_NSH;
+			break;
+		case NPC_LT_LC_FCOE:
+			val |= RTE_PTYPE_L2_ETHER_FCOE;
+			break;
+		case NPC_LT_LC_MPLS:
+			val |= RTE_PTYPE_L2_ETHER_MPLS;
+			break;
+		case NPC_LT_LC_IP:
+			val |= RTE_PTYPE_L3_IPV4;
+			break;
+		case NPC_LT_LC_IP_OPT:
+			val |= RTE_PTYPE_L3_IPV4_EXT;
+			break;
+		case NPC_LT_LC_IP6:
+			val |= RTE_PTYPE_L3_IPV6;
+			break;
+		case NPC_LT_LC_IP6_EXT:
+			val |= RTE_PTYPE_L3_IPV6_EXT;
+			break;
+		case NPC_LT_LC_PTP:
+			val |= RTE_PTYPE_L2_ETHER_TIMESYNC;
+			break;
+		}
+
+		switch (ld) {
+		case NPC_LT_LD_TCP:
+			val |= RTE_PTYPE_L4_TCP;
+			break;
+		case NPC_LT_LD_UDP:
+			val |= RTE_PTYPE_L4_UDP;
+			break;
+		case NPC_LT_LD_SCTP:
+			val |= RTE_PTYPE_L4_SCTP;
+			break;
+		case NPC_LT_LD_ICMP:
+		case NPC_LT_LD_ICMP6:
+			val |= RTE_PTYPE_L4_ICMP;
+			break;
+		case NPC_LT_LD_IGMP:
+			val |= RTE_PTYPE_L4_IGMP;
+			break;
+		case NPC_LT_LD_GRE:
+			val |= RTE_PTYPE_TUNNEL_GRE;
+			break;
+		case NPC_LT_LD_NVGRE:
+			val |= RTE_PTYPE_TUNNEL_NVGRE;
+			break;
+		}
+
+		switch (le) {
+		case NPC_LT_LE_VXLAN:
+			val |= RTE_PTYPE_TUNNEL_VXLAN;
+			break;
+		case NPC_LT_LE_ESP:
+			val |= RTE_PTYPE_TUNNEL_ESP;
+			break;
+		case NPC_LT_LE_VXLANGPE:
+			val |= RTE_PTYPE_TUNNEL_VXLAN_GPE;
+			break;
+		case NPC_LT_LE_GENEVE:
+			val |= RTE_PTYPE_TUNNEL_GENEVE;
+			break;
+		case NPC_LT_LE_GTPC:
+			val |= RTE_PTYPE_TUNNEL_GTPC;
+			break;
+		case NPC_LT_LE_GTPU:
+			val |= RTE_PTYPE_TUNNEL_GTPU;
+			break;
+		case NPC_LT_LE_TU_MPLS_IN_GRE:
+			val |= RTE_PTYPE_TUNNEL_MPLS_IN_GRE;
+			break;
+		case NPC_LT_LE_TU_MPLS_IN_UDP:
+			val |= RTE_PTYPE_TUNNEL_MPLS_IN_UDP;
+			break;
+		}
+		ptype[idx] = val;
+	}
+}
+
+#define TU_SHIFT(x) ((x) >> PTYPE_NON_TUNNEL_WIDTH)
+static void
+nix_create_tunnel_ptype_array(uint16_t *ptype)
+{
+	uint8_t lf, lg, lh;
+	uint16_t val;
+	uint32_t idx;
+
+	/* Skip non tunnel ptype array memory */
+	ptype = ptype + PTYPE_NON_TUNNEL_ARRAY_SZ;
+
+	for (idx = 0; idx < PTYPE_TUNNEL_ARRAY_SZ; idx++) {
+		lf = idx & 0xF;
+		lg = (idx & 0xF0) >> 4;
+		lh = (idx & 0xF00) >> 8;
+		val = RTE_PTYPE_UNKNOWN;
+
+		switch (lf) {
+		case NPC_LT_LF_TU_ETHER:
+			val |= TU_SHIFT(RTE_PTYPE_INNER_L2_ETHER);
+			break;
+		}
+		switch (lg) {
+		case NPC_LT_LG_TU_IP:
+			val |= TU_SHIFT(RTE_PTYPE_INNER_L3_IPV4);
+			break;
+		case NPC_LT_LG_TU_IP6:
+			val |= TU_SHIFT(RTE_PTYPE_INNER_L3_IPV6);
+			break;
+		}
+		switch (lh) {
+		case NPC_LT_LH_TU_TCP:
+			val |= TU_SHIFT(RTE_PTYPE_INNER_L4_TCP);
+			break;
+		case NPC_LT_LH_TU_UDP:
+			val |= TU_SHIFT(RTE_PTYPE_INNER_L4_UDP);
+			break;
+		case NPC_LT_LH_TU_SCTP:
+			val |= TU_SHIFT(RTE_PTYPE_INNER_L4_SCTP);
+			break;
+		case NPC_LT_LH_TU_ICMP:
+		case NPC_LT_LH_TU_ICMP6:
+			val |= TU_SHIFT(RTE_PTYPE_INNER_L4_ICMP);
+			break;
+		}
+
+		ptype[idx] = val;
+	}
+}
+
+static void
+nix_create_rx_ol_flags_array(void *mem)
+{
+	uint16_t idx, errcode, errlev;
+	uint32_t val, *ol_flags;
+
+	/* Skip ptype array memory */
+	ol_flags = (uint32_t *)((uint8_t *)mem + PTYPE_ARRAY_SZ);
+
+	for (idx = 0; idx < BIT(ERRCODE_ERRLEN_WIDTH); idx++) {
+		errlev = idx & 0xf;
+		errcode = (idx & 0xff0) >> 4;
+
+		val = PKT_RX_IP_CKSUM_UNKNOWN;
+		val |= PKT_RX_L4_CKSUM_UNKNOWN;
+		val |= PKT_RX_OUTER_L4_CKSUM_UNKNOWN;
+
+		switch (errlev) {
+		case NPC_ERRLEV_RE:
+			/* Mark all errors as BAD checksum errors
+			 * including Outer L2 length mismatch error
+			 */
+			if (errcode) {
+				val |= PKT_RX_IP_CKSUM_BAD;
+				val |= PKT_RX_L4_CKSUM_BAD;
+			} else {
+				val |= PKT_RX_IP_CKSUM_GOOD;
+				val |= PKT_RX_L4_CKSUM_GOOD;
+			}
+			break;
+		case NPC_ERRLEV_LC:
+			if (errcode == NPC_EC_OIP4_CSUM ||
+			    errcode == NPC_EC_IP_FRAG_OFFSET_1) {
+				val |= PKT_RX_IP_CKSUM_BAD;
+				val |= PKT_RX_EIP_CKSUM_BAD;
+			} else {
+				val |= PKT_RX_IP_CKSUM_GOOD;
+			}
+			break;
+		case NPC_ERRLEV_LG:
+			if (errcode == NPC_EC_IIP4_CSUM)
+				val |= PKT_RX_IP_CKSUM_BAD;
+			else
+				val |= PKT_RX_IP_CKSUM_GOOD;
+			break;
+		case NPC_ERRLEV_NIX:
+			if (errcode == NIX_RX_PERRCODE_OL4_CHK ||
+			    errcode == NIX_RX_PERRCODE_OL4_LEN ||
+			    errcode == NIX_RX_PERRCODE_OL4_PORT) {
+				val |= PKT_RX_IP_CKSUM_GOOD;
+				val |= PKT_RX_L4_CKSUM_BAD;
+				val |= PKT_RX_OUTER_L4_CKSUM_BAD;
+			} else if (errcode == NIX_RX_PERRCODE_IL4_CHK ||
+				   errcode == NIX_RX_PERRCODE_IL4_LEN ||
+				   errcode == NIX_RX_PERRCODE_IL4_PORT) {
+				val |= PKT_RX_IP_CKSUM_GOOD;
+				val |= PKT_RX_L4_CKSUM_BAD;
+			} else if (errcode == NIX_RX_PERRCODE_IL3_LEN ||
+				   errcode == NIX_RX_PERRCODE_OL3_LEN) {
+				val |= PKT_RX_IP_CKSUM_BAD;
+			} else {
+				val |= PKT_RX_IP_CKSUM_GOOD;
+				val |= PKT_RX_L4_CKSUM_GOOD;
+			}
+			break;
+		}
+		ol_flags[idx] = val;
+	}
+}
+
+void *
+cnxk_nix_fastpath_lookup_mem_get(void)
+{
+	const char name[] = CNXK_NIX_FASTPATH_LOOKUP_MEM;
+	const struct rte_memzone *mz;
+	void *mem;
+
+	mz = rte_memzone_lookup(name);
+	if (mz != NULL)
+		return mz->addr;
+
+	/* Request for the first time */
+	mz = rte_memzone_reserve_aligned(name, LOOKUP_ARRAY_SZ, SOCKET_ID_ANY,
+					 0, ROC_ALIGN);
+	if (mz != NULL) {
+		mem = mz->addr;
+		/* Form the ptype array lookup memory */
+		nix_create_non_tunnel_ptype_array(mem);
+		nix_create_tunnel_ptype_array(mem);
+		/* Form the rx ol_flags based on errcode */
+		nix_create_rx_ol_flags_array(mem);
+		return mem;
+	}
+	return NULL;
+}
diff --git a/drivers/net/cnxk/meson.build b/drivers/net/cnxk/meson.build
index c0ec91a..b6b6989 100644
--- a/drivers/net/cnxk/meson.build
+++ b/drivers/net/cnxk/meson.build
@@ -11,7 +11,8 @@ endif
 sources = files('cnxk_ethdev.c',
 		'cnxk_ethdev_ops.c',
 		'cnxk_ethdev_devargs.c',
-		'cnxk_link.c')
+		'cnxk_link.c',
+		'cnxk_lookup.c')
 
 # CN9K
 sources += files('cn9k_ethdev.c')
-- 
2.8.4