[v6,1/2] rte_flow: add eCPRI key fields to flow API

diff --git a/doc/guides/prog_guide/rte_flow.rst b/doc/guides/prog_guide/rte_flow.rst
index d5dd18c..3e5cd1e 100644
--- a/doc/guides/prog_guide/rte_flow.rst
+++ b/doc/guides/prog_guide/rte_flow.rst
@@ -1362,6 +1362,14 @@  Matches a PFCP Header.
 - ``seid``: session endpoint identifier.
 - Default ``mask`` matches s_field and seid.
 
+Item: ``ECPRI``
+^^^^^^^^^^^^^^^
+
+Matches a eCPRI header.
+
+- ``hdr``: eCPRI header definition (``rte_ecpri.h``).
+- Default ``mask`` matches nothing, for all eCPRI messages.
+
 Actions
 ~~~~~~~
 
diff --git a/doc/guides/rel_notes/release_20_08.rst b/doc/guides/rel_notes/release_20_08.rst
index 3e07ee6..67888aa 100644
--- a/doc/guides/rel_notes/release_20_08.rst
+++ b/doc/guides/rel_notes/release_20_08.rst
@@ -205,6 +205,11 @@  New Features
   the  ``5tswap`` swaps source and destination in layers 2,3,4
   for ipv4 and ipv6 in L3 and UDP and TCP in L4.
 
+* **Added eCPRI protocol support in rte_flow.**
+
+  The ``ECPRI`` item have been added to support eCPRI packet offloading for
+  5G network.
+
 * **Added flow performance test application.**
 
   Added new application to test ``rte_flow`` performance, including:
diff --git a/lib/librte_ethdev/rte_flow.c b/lib/librte_ethdev/rte_flow.c
index 1685be5..f8fdd68 100644
--- a/lib/librte_ethdev/rte_flow.c
+++ b/lib/librte_ethdev/rte_flow.c
@@ -95,6 +95,7 @@  struct rte_flow_desc_data {
 	MK_FLOW_ITEM(HIGIG2, sizeof(struct rte_flow_item_higig2_hdr)),
 	MK_FLOW_ITEM(L2TPV3OIP, sizeof(struct rte_flow_item_l2tpv3oip)),
 	MK_FLOW_ITEM(PFCP, sizeof(struct rte_flow_item_pfcp)),
+	MK_FLOW_ITEM(ECPRI, sizeof(struct rte_flow_item_ecpri)),
 };
 
 /** Generate flow_action[] entry. */
diff --git a/lib/librte_ethdev/rte_flow.h b/lib/librte_ethdev/rte_flow.h
index b0e4199..da8bfa5 100644
--- a/lib/librte_ethdev/rte_flow.h
+++ b/lib/librte_ethdev/rte_flow.h
@@ -28,6 +28,7 @@ 
 #include <rte_byteorder.h>
 #include <rte_esp.h>
 #include <rte_higig.h>
+#include <rte_ecpri.h>
 #include <rte_mbuf.h>
 #include <rte_mbuf_dyn.h>
 
@@ -527,6 +528,15 @@  enum rte_flow_item_type {
 	 */
 	RTE_FLOW_ITEM_TYPE_PFCP,
 
+	/**
+	 * Matches eCPRI Header.
+	 *
+	 * Configure flow for eCPRI over ETH or UDP packets.
+	 *
+	 * See struct rte_flow_item_ecpri.
+	 */
+	RTE_FLOW_ITEM_TYPE_ECPRI,
+
 };
 
 /**
@@ -1547,6 +1557,29 @@  struct rte_flow_item_pfcp {
 #endif
 
 /**
+ * @warning
+ * @b EXPERIMENTAL: this structure may change without prior notice
+ *
+ * RTE_FLOW_ITEM_TYPE_ECPRI
+ *
+ * Match eCPRI Header
+ */
+struct rte_flow_item_ecpri {
+	struct rte_ecpri_combined_msg_hdr hdr;
+};
+
+/** Default mask for RTE_FLOW_ITEM_TYPE_ECPRI. */
+#ifndef __cplusplus
+static const struct rte_flow_item_ecpri rte_flow_item_ecpri_mask = {
+	.hdr = {
+		.common = {
+			.u32 = 0x0,
+		},
+	},
+};
+#endif
+
+/**
  * Matching pattern item definition.
  *
  * A pattern is formed by stacking items starting from the lowest protocol
diff --git a/lib/librte_net/Makefile b/lib/librte_net/Makefile
index aa1d6fe..9830e77 100644
--- a/lib/librte_net/Makefile
+++ b/lib/librte_net/Makefile
@@ -20,5 +20,6 @@  SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include += rte_sctp.h rte_icmp.h rte_arp.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include += rte_ether.h rte_gre.h rte_net.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include += rte_net_crc.h rte_mpls.h rte_higig.h
 SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include += rte_gtp.h rte_vxlan.h
+SYMLINK-$(CONFIG_RTE_LIBRTE_NET)-include += rte_ecpri.h
 
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/lib/librte_net/meson.build b/lib/librte_net/meson.build
index f799349..24ed825 100644
--- a/lib/librte_net/meson.build
+++ b/lib/librte_net/meson.build
@@ -15,7 +15,8 @@  headers = files('rte_ip.h',
 	'rte_net.h',
 	'rte_net_crc.h',
 	'rte_mpls.h',
-	'rte_higig.h')
+	'rte_higig.h',
+	'rte_ecpri.h')
 
 sources = files('rte_arp.c', 'rte_ether.c', 'rte_net.c', 'rte_net_crc.c')
 deps += ['mbuf']
diff --git a/lib/librte_net/rte_ecpri.h b/lib/librte_net/rte_ecpri.h
new file mode 100644
index 0000000..d1c4838
--- /dev/null
+++ b/lib/librte_net/rte_ecpri.h
@@ -0,0 +1,183 @@ 
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright 2020 Mellanox Technologies, Ltd
+ */
+
+#ifndef _RTE_ECPRI_H_
+#define _RTE_ECPRI_H_
+
+#include <stdint.h>
+#include <rte_byteorder.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * eCPRI Protocol Revision 1.0, 1.1, 1.2, 2.0: 0001b
+ * Other values are reserved for future
+ */
+#define RTE_ECPRI_REV_UP_TO_20		1
+
+/*
+ * eCPRI message types in specifications
+ * IWF* types will only be supported from rev.2
+ * 12-63: Reserved for future revision
+ * 64-255: Vendor Specific
+ */
+#define RTE_ECPRI_MSG_TYPE_IQ_DATA	0
+#define RTE_ECPRI_MSG_TYPE_BIT_SEQ	1
+#define RTE_ECPRI_MSG_TYPE_RTC_CTRL	2
+#define RTE_ECPRI_MSG_TYPE_GEN_DATA	3
+#define RTE_ECPRI_MSG_TYPE_RM_ACC	4
+#define RTE_ECPRI_MSG_TYPE_DLY_MSR	5
+#define RTE_ECPRI_MSG_TYPE_RMT_RST	6
+#define RTE_ECPRI_MSG_TYPE_EVT_IND	7
+#define RTE_ECPRI_MSG_TYPE_IWF_UP	8
+#define RTE_ECPRI_MSG_TYPE_IWF_OPT	9
+#define RTE_ECPRI_MSG_TYPE_IWF_MAP	10
+#define RTE_ECPRI_MSG_TYPE_IWF_DCTRL	11
+
+/*
+ * Event Type of Message Type #7: Event Indication
+ * 0x00: Fault(s) Indication
+ * 0x01: Fault(s) Indication Acknowledge
+ * 0x02: Notification(s) Indication
+ * 0x03: Synchronization Request
+ * 0x04: Synchronization Acknowledge
+ * 0x05: Synchronization End Indication
+ * 0x06...0xFF: Reserved
+ */
+#define RTE_ECPRI_EVT_IND_FAULT_IND	0x00
+#define RTE_ECPRI_EVT_IND_FAULT_ACK	0x01
+#define RTE_ECPRI_EVT_IND_NTFY_IND	0x02
+#define RTE_ECPRI_EVT_IND_SYNC_REQ	0x03
+#define RTE_ECPRI_EVT_IND_SYNC_ACK	0x04
+#define RTE_ECPRI_EVT_IND_SYNC_END	0x05
+
+/**
+ * eCPRI Common Header
+ */
+RTE_STD_C11
+struct rte_ecpri_common_hdr {
+	union {
+		rte_be32_t u32;			/**< 4B common header in BE */
+		struct {
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+			uint32_t size:16;	/**< Payload Size */
+			uint32_t type:8;	/**< Message Type */
+			uint32_t c:1;		/**< Concatenation Indicator */
+			uint32_t res:3;		/**< Reserved */
+			uint32_t revision:4;	/**< Protocol Revision */
+#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
+			uint32_t revision:4;	/**< Protocol Revision */
+			uint32_t res:3;		/**< Reserved */
+			uint32_t c:1;		/**< Concatenation Indicator */
+			uint32_t type:8;	/**< Message Type */
+			uint32_t size:16;	/**< Payload Size */
+#endif
+		};
+	};
+};
+
+/**
+ * eCPRI Message Header of Type #0: IQ Data
+ */
+struct rte_ecpri_msg_iq_data {
+	rte_be16_t pc_id;		/**< Physical channel ID */
+	rte_be16_t seq_id;		/**< Sequence ID */
+};
+
+/**
+ * eCPRI Message Header of Type #1: Bit Sequence
+ */
+struct rte_ecpri_msg_bit_seq {
+	rte_be16_t pc_id;		/**< Physical channel ID */
+	rte_be16_t seq_id;		/**< Sequence ID */
+};
+
+/**
+ * eCPRI Message Header of Type #2: Real-Time Control Data
+ */
+struct rte_ecpri_msg_rtc_ctrl {
+	rte_be16_t rtc_id;		/**< Real-Time Control Data ID */
+	rte_be16_t seq_id;		/**< Sequence ID */
+};
+
+/**
+ * eCPRI Message Header of Type #3: Generic Data Transfer
+ */
+struct rte_ecpri_msg_gen_data {
+	rte_be32_t pc_id;		/**< Physical channel ID */
+	rte_be32_t seq_id;		/**< Sequence ID */
+};
+
+/**
+ * eCPRI Message Header of Type #4: Remote Memory Access
+ */
+RTE_STD_C11
+struct rte_ecpri_msg_rm_access {
+#if RTE_BYTE_ORDER == RTE_LITTLE_ENDIAN
+	uint32_t ele_id:16;		/**< Element ID */
+	uint32_t rr:4;			/**< Req/Resp */
+	uint32_t rw:4;			/**< Read/Write */
+	uint32_t rma_id:8;		/**< Remote Memory Access ID */
+#elif RTE_BYTE_ORDER == RTE_BIG_ENDIAN
+	uint32_t rma_id:8;		/**< Remote Memory Access ID */
+	uint32_t rw:4;			/**< Read/Write */
+	uint32_t rr:4;			/**< Req/Resp */
+	uint32_t ele_id:16;		/**< Element ID */
+#endif
+	uint8_t addr[6];		/**< 48-bits address */
+	rte_be16_t length;		/**< number of bytes */
+};
+
+/**
+ * eCPRI Message Header of Type #5: One-Way Delay Measurement
+ */
+struct rte_ecpri_msg_delay_measure {
+	uint8_t msr_id;			/**< Measurement ID */
+	uint8_t act_type;		/**< Action Type */
+};
+
+/**
+ * eCPRI Message Header of Type #6: Remote Reset
+ */
+struct rte_ecpri_msg_remote_reset {
+	rte_be16_t rst_id;		/**< Reset ID */
+	uint8_t rst_op;			/**< Reset Code Op */
+};
+
+/**
+ * eCPRI Message Header of Type #7: Event Indication
+ */
+struct rte_ecpri_msg_event_ind {
+	uint8_t evt_id;			/**< Event ID */
+	uint8_t evt_type;		/**< Event Type */
+	uint8_t seq;			/**< Sequence Number */
+	uint8_t number;			/**< Number of Faults/Notif */
+};
+
+/**
+ * eCPRI Combined Message Header Format: Common Header + Message Types
+ */
+RTE_STD_C11
+struct rte_ecpri_combined_msg_hdr {
+	struct rte_ecpri_common_hdr common;
+	union {
+		struct rte_ecpri_msg_iq_data type0;
+		struct rte_ecpri_msg_bit_seq type1;
+		struct rte_ecpri_msg_rtc_ctrl type2;
+		struct rte_ecpri_msg_bit_seq type3;
+		struct rte_ecpri_msg_rm_access type4;
+		struct rte_ecpri_msg_delay_measure type5;
+		struct rte_ecpri_msg_remote_reset type6;
+		struct rte_ecpri_msg_event_ind type7;
+		rte_be32_t dummy[3];
+	};
+};
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RTE_ECPRI_H_ */
diff --git a/lib/librte_net/rte_ether.h b/lib/librte_net/rte_ether.h
index e942556..a358e88 100644
--- a/lib/librte_net/rte_ether.h
+++ b/lib/librte_net/rte_ether.h
@@ -307,6 +307,7 @@  struct rte_vlan_hdr {
 #define RTE_ETHER_TYPE_LLDP 0x88CC /**< LLDP Protocol. */
 #define RTE_ETHER_TYPE_MPLS 0x8847 /**< MPLS ethertype. */
 #define RTE_ETHER_TYPE_MPLSM 0x8848 /**< MPLS multicast ethertype. */
+#define RTE_ETHER_TYPE_ECPRI 0xAEFE /**< eCPRI ethertype (.1Q supported). */
 
 /**
  * Extract VLAN tag information into mbuf