Re: [dpdk-dev] [PATCH v2 3/3] examples/bpf: remove duplicate mbuf definition

[Michel Machado <michel@digirati.com.br>]

Acked-by: Michel Machado <michel@digirati.com.br>

[ ]'s
Michel Machado

On 9/27/19 9:50 AM, Konstantin Ananyev wrote:
> Get rid of duplicate definitions for rte_mbuf and related macros.
> Include rte_mbuf_core.h instead.
> 
> Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
> ---
>   examples/bpf/mbuf.h | 605 --------------------------------------------
>   examples/bpf/t2.c   |   4 +-
>   examples/bpf/t3.c   |   2 +-
>   3 files changed, 3 insertions(+), 608 deletions(-)
>   delete mode 100644 examples/bpf/mbuf.h
> 
> diff --git a/examples/bpf/mbuf.h b/examples/bpf/mbuf.h
> deleted file mode 100644
> index e41c3d26e..000000000
> --- a/examples/bpf/mbuf.h
> +++ /dev/null
> @@ -1,605 +0,0 @@
> -/* SPDX-License-Identifier: BSD-3-Clause
> - * Copyright(c) 2010-2014 Intel Corporation.
> - * Copyright 2014 6WIND S.A.
> - */
> -
> -/*
> - * Snipper from dpdk.org rte_mbuf.h.
> - * used to provide BPF programs information about rte_mbuf layout.
> - */
> -
> -#ifndef _MBUF_H_
> -#define _MBUF_H_
> -
> -#include <stdint.h>
> -#include <rte_common.h>
> -
> -#ifdef __cplusplus
> -extern "C" {
> -#endif
> -
> -/*
> - * Packet Offload Features Flags. It also carry packet type information.
> - * Critical resources. Both rx/tx shared these bits. Be cautious on any change
> - *
> - * - RX flags start at bit position zero, and get added to the left of previous
> - *   flags.
> - * - The most-significant 3 bits are reserved for generic mbuf flags
> - * - TX flags therefore start at bit position 60 (i.e. 63-3), and new flags get
> - *   added to the right of the previously defined flags i.e. they should count
> - *   downwards, not upwards.
> - *
> - * Keep these flags synchronized with rte_get_rx_ol_flag_name() and
> - * rte_get_tx_ol_flag_name().
> - */
> -
> -/**
> - * RX packet is a 802.1q VLAN packet. This flag was set by PMDs when
> - * the packet is recognized as a VLAN, but the behavior between PMDs
> - * was not the same. This flag is kept for some time to avoid breaking
> - * applications and should be replaced by PKT_RX_VLAN_STRIPPED.
> - */
> -#define PKT_RX_VLAN_PKT      (1ULL << 0)
> -
> -#define PKT_RX_RSS_HASH      (1ULL << 1)
> -/**< RX packet with RSS hash result. */
> -#define PKT_RX_FDIR          (1ULL << 2)
> -/**< RX packet with FDIR match indicate. */
> -
> -/**
> - * Deprecated.
> - * Checking this flag alone is deprecated: check the 2 bits of
> - * PKT_RX_L4_CKSUM_MASK.
> - * This flag was set when the L4 checksum of a packet was detected as
> - * wrong by the hardware.
> - */
> -#define PKT_RX_L4_CKSUM_BAD  (1ULL << 3)
> -
> -/**
> - * Deprecated.
> - * Checking this flag alone is deprecated: check the 2 bits of
> - * PKT_RX_IP_CKSUM_MASK.
> - * This flag was set when the IP checksum of a packet was detected as
> - * wrong by the hardware.
> - */
> -#define PKT_RX_IP_CKSUM_BAD  (1ULL << 4)
> -
> -#define PKT_RX_EIP_CKSUM_BAD (1ULL << 5)
> -/**< External IP header checksum error. */
> -
> -/**
> - * A vlan has been stripped by the hardware and its tci is saved in
> - * mbuf->vlan_tci. This can only happen if vlan stripping is enabled
> - * in the RX configuration of the PMD.
> - */
> -#define PKT_RX_VLAN_STRIPPED (1ULL << 6)
> -
> -/**
> - * Mask of bits used to determine the status of RX IP checksum.
> - * - PKT_RX_IP_CKSUM_UNKNOWN: no information about the RX IP checksum
> - * - PKT_RX_IP_CKSUM_BAD: the IP checksum in the packet is wrong
> - * - PKT_RX_IP_CKSUM_GOOD: the IP checksum in the packet is valid
> - * - PKT_RX_IP_CKSUM_NONE: the IP checksum is not correct in the packet
> - *   data, but the integrity of the IP header is verified.
> - */
> -#define PKT_RX_IP_CKSUM_MASK ((1ULL << 4) | (1ULL << 7))
> -
> -#define PKT_RX_IP_CKSUM_UNKNOWN 0
> -#define PKT_RX_IP_CKSUM_BAD     (1ULL << 4)
> -#define PKT_RX_IP_CKSUM_GOOD    (1ULL << 7)
> -#define PKT_RX_IP_CKSUM_NONE    ((1ULL << 4) | (1ULL << 7))
> -
> -/**
> - * Mask of bits used to determine the status of RX L4 checksum.
> - * - PKT_RX_L4_CKSUM_UNKNOWN: no information about the RX L4 checksum
> - * - PKT_RX_L4_CKSUM_BAD: the L4 checksum in the packet is wrong
> - * - PKT_RX_L4_CKSUM_GOOD: the L4 checksum in the packet is valid
> - * - PKT_RX_L4_CKSUM_NONE: the L4 checksum is not correct in the packet
> - *   data, but the integrity of the L4 data is verified.
> - */
> -#define PKT_RX_L4_CKSUM_MASK ((1ULL << 3) | (1ULL << 8))
> -
> -#define PKT_RX_L4_CKSUM_UNKNOWN 0
> -#define PKT_RX_L4_CKSUM_BAD     (1ULL << 3)
> -#define PKT_RX_L4_CKSUM_GOOD    (1ULL << 8)
> -#define PKT_RX_L4_CKSUM_NONE    ((1ULL << 3) | (1ULL << 8))
> -
> -#define PKT_RX_IEEE1588_PTP  (1ULL << 9)
> -/**< RX IEEE1588 L2 Ethernet PT Packet. */
> -#define PKT_RX_IEEE1588_TMST (1ULL << 10)
> -/**< RX IEEE1588 L2/L4 timestamped packet.*/
> -#define PKT_RX_FDIR_ID       (1ULL << 13)
> -/**< FD id reported if FDIR match. */
> -#define PKT_RX_FDIR_FLX      (1ULL << 14)
> -/**< Flexible bytes reported if FDIR match. */
> -
> -/**
> - * The 2 vlans have been stripped by the hardware and their tci are
> - * saved in mbuf->vlan_tci (inner) and mbuf->vlan_tci_outer (outer).
> - * This can only happen if vlan stripping is enabled in the RX
> - * configuration of the PMD. If this flag is set, PKT_RX_VLAN_STRIPPED
> - * must also be set.
> - */
> -#define PKT_RX_QINQ_STRIPPED (1ULL << 15)
> -
> -/**
> - * Deprecated.
> - * RX packet with double VLAN stripped.
> - * This flag is replaced by PKT_RX_QINQ_STRIPPED.
> - */
> -#define PKT_RX_QINQ_PKT      PKT_RX_QINQ_STRIPPED
> -
> -/**
> - * When packets are coalesced by a hardware or virtual driver, this flag
> - * can be set in the RX mbuf, meaning that the m->tso_segsz field is
> - * valid and is set to the segment size of original packets.
> - */
> -#define PKT_RX_LRO           (1ULL << 16)
> -
> -/**
> - * Indicate that the timestamp field in the mbuf is valid.
> - */
> -#define PKT_RX_TIMESTAMP     (1ULL << 17)
> -
> -/* add new RX flags here */
> -
> -/* add new TX flags here */
> -
> -/**
> - * Offload the MACsec. This flag must be set by the application to enable
> - * this offload feature for a packet to be transmitted.
> - */
> -#define PKT_TX_MACSEC        (1ULL << 44)
> -
> -/**
> - * Bits 45:48 used for the tunnel type.
> - * When doing Tx offload like TSO or checksum, the HW needs to configure the
> - * tunnel type into the HW descriptors.
> - */
> -#define PKT_TX_TUNNEL_VXLAN   (0x1ULL << 45)
> -#define PKT_TX_TUNNEL_GRE     (0x2ULL << 45)
> -#define PKT_TX_TUNNEL_IPIP    (0x3ULL << 45)
> -#define PKT_TX_TUNNEL_GENEVE  (0x4ULL << 45)
> -/**< TX packet with MPLS-in-UDP RFC 7510 header. */
> -#define PKT_TX_TUNNEL_MPLSINUDP (0x5ULL << 45)
> -/* add new TX TUNNEL type here */
> -#define PKT_TX_TUNNEL_MASK    (0xFULL << 45)
> -
> -/**
> - * Second VLAN insertion (QinQ) flag.
> - */
> -#define PKT_TX_QINQ_PKT    (1ULL << 49)
> -/**< TX packet with double VLAN inserted. */
> -
> -/**
> - * TCP segmentation offload. To enable this offload feature for a
> - * packet to be transmitted on hardware supporting TSO:
> - *  - set the PKT_TX_TCP_SEG flag in mbuf->ol_flags (this flag implies
> - *    PKT_TX_TCP_CKSUM)
> - *  - set the flag PKT_TX_IPV4 or PKT_TX_IPV6
> - *  - if it's IPv4, set the PKT_TX_IP_CKSUM flag and write the IP checksum
> - *    to 0 in the packet
> - *  - fill the mbuf offload information: l2_len, l3_len, l4_len, tso_segsz
> - *  - calculate the pseudo header checksum without taking ip_len in account,
> - *    and set it in the TCP header. Refer to rte_ipv4_phdr_cksum() and
> - *    rte_ipv6_phdr_cksum() that can be used as helpers.
> - */
> -#define PKT_TX_TCP_SEG       (1ULL << 50)
> -
> -#define PKT_TX_IEEE1588_TMST (1ULL << 51)
> -/**< TX IEEE1588 packet to timestamp. */
> -
> -/**
> - * Bits 52+53 used for L4 packet type with checksum enabled: 00: Reserved,
> - * 01: TCP checksum, 10: SCTP checksum, 11: UDP checksum. To use hardware
> - * L4 checksum offload, the user needs to:
> - *  - fill l2_len and l3_len in mbuf
> - *  - set the flags PKT_TX_TCP_CKSUM, PKT_TX_SCTP_CKSUM or PKT_TX_UDP_CKSUM
> - *  - set the flag PKT_TX_IPV4 or PKT_TX_IPV6
> - *  - calculate the pseudo header checksum and set it in the L4 header (only
> - *    for TCP or UDP). See rte_ipv4_phdr_cksum() and rte_ipv6_phdr_cksum().
> - *    For SCTP, set the crc field to 0.
> - */
> -#define PKT_TX_L4_NO_CKSUM   (0ULL << 52)
> -/**< Disable L4 cksum of TX pkt. */
> -#define PKT_TX_TCP_CKSUM     (1ULL << 52)
> -/**< TCP cksum of TX pkt. computed by NIC. */
> -#define PKT_TX_SCTP_CKSUM    (2ULL << 52)
> -/**< SCTP cksum of TX pkt. computed by NIC. */
> -#define PKT_TX_UDP_CKSUM     (3ULL << 52)
> -/**< UDP cksum of TX pkt. computed by NIC. */
> -#define PKT_TX_L4_MASK       (3ULL << 52)
> -/**< Mask for L4 cksum offload request. */
> -
> -/**
> - * Offload the IP checksum in the hardware. The flag PKT_TX_IPV4 should
> - * also be set by the application, although a PMD will only check
> - * PKT_TX_IP_CKSUM.
> - *  - set the IP checksum field in the packet to 0
> - *  - fill the mbuf offload information: l2_len, l3_len
> - */
> -#define PKT_TX_IP_CKSUM      (1ULL << 54)
> -
> -/**
> - * Packet is IPv4. This flag must be set when using any offload feature
> - * (TSO, L3 or L4 checksum) to tell the NIC that the packet is an IPv4
> - * packet. If the packet is a tunneled packet, this flag is related to
> - * the inner headers.
> - */
> -#define PKT_TX_IPV4          (1ULL << 55)
> -
> -/**
> - * Packet is IPv6. This flag must be set when using an offload feature
> - * (TSO or L4 checksum) to tell the NIC that the packet is an IPv6
> - * packet. If the packet is a tunneled packet, this flag is related to
> - * the inner headers.
> - */
> -#define PKT_TX_IPV6          (1ULL << 56)
> -
> -#define PKT_TX_VLAN_PKT      (1ULL << 57)
> -/**< TX packet is a 802.1q VLAN packet. */
> -
> -/**
> - * Offload the IP checksum of an external header in the hardware. The
> - * flag PKT_TX_OUTER_IPV4 should also be set by the application, alto ugh
> - * a PMD will only check PKT_TX_IP_CKSUM.  The IP checksum field in the
> - * packet must be set to 0.
> - *  - set the outer IP checksum field in the packet to 0
> - *  - fill the mbuf offload information: outer_l2_len, outer_l3_len
> - */
> -#define PKT_TX_OUTER_IP_CKSUM   (1ULL << 58)
> -
> -/**
> - * Packet outer header is IPv4. This flag must be set when using any
> - * outer offload feature (L3 or L4 checksum) to tell the NIC that the
> - * outer header of the tunneled packet is an IPv4 packet.
> - */
> -#define PKT_TX_OUTER_IPV4   (1ULL << 59)
> -
> -/**
> - * Packet outer header is IPv6. This flag must be set when using any
> - * outer offload feature (L4 checksum) to tell the NIC that the outer
> - * header of the tunneled packet is an IPv6 packet.
> - */
> -#define PKT_TX_OUTER_IPV6    (1ULL << 60)
> -
> -/**
> - * Bitmask of all supported packet Tx offload features flags,
> - * which can be set for packet.
> - */
> -#define PKT_TX_OFFLOAD_MASK (    \
> -		PKT_TX_IP_CKSUM |        \
> -		PKT_TX_L4_MASK |         \
> -		PKT_TX_OUTER_IP_CKSUM |  \
> -		PKT_TX_TCP_SEG |         \
> -		PKT_TX_IEEE1588_TMST |	 \
> -		PKT_TX_QINQ_PKT |        \
> -		PKT_TX_VLAN_PKT |        \
> -		PKT_TX_TUNNEL_MASK |	 \
> -		PKT_TX_MACSEC)
> -
> -#define __RESERVED           (1ULL << 61) /**< reserved for future mbuf use */
> -
> -#define IND_ATTACHED_MBUF    (1ULL << 62) /**< Indirect attached mbuf */
> -
> -/* Use final bit of flags to indicate a control mbuf */
> -#define CTRL_MBUF_FLAG       (1ULL << 63) /**< Mbuf contains control data */
> -
> -/** Alignment constraint of mbuf private area. */
> -#define RTE_MBUF_PRIV_ALIGN 8
> -
> -/**
> - * Get the name of a RX offload flag
> - *
> - * @param mask
> - *   The mask describing the flag.
> - * @return
> - *   The name of this flag, or NULL if it's not a valid RX flag.
> - */
> -const char *rte_get_rx_ol_flag_name(uint64_t mask);
> -
> -/**
> - * Dump the list of RX offload flags in a buffer
> - *
> - * @param mask
> - *   The mask describing the RX flags.
> - * @param buf
> - *   The output buffer.
> - * @param buflen
> - *   The length of the buffer.
> - * @return
> - *   0 on success, (-1) on error.
> - */
> -int rte_get_rx_ol_flag_list(uint64_t mask, char *buf, size_t buflen);
> -
> -/**
> - * Get the name of a TX offload flag
> - *
> - * @param mask
> - *   The mask describing the flag. Usually only one bit must be set.
> - *   Several bits can be given if they belong to the same mask.
> - *   Ex: PKT_TX_L4_MASK.
> - * @return
> - *   The name of this flag, or NULL if it's not a valid TX flag.
> - */
> -const char *rte_get_tx_ol_flag_name(uint64_t mask);
> -
> -/**
> - * Dump the list of TX offload flags in a buffer
> - *
> - * @param mask
> - *   The mask describing the TX flags.
> - * @param buf
> - *   The output buffer.
> - * @param buflen
> - *   The length of the buffer.
> - * @return
> - *   0 on success, (-1) on error.
> - */
> -int rte_get_tx_ol_flag_list(uint64_t mask, char *buf, size_t buflen);
> -
> -/**
> - * Some NICs need at least 2KB buffer to RX standard Ethernet frame without
> - * splitting it into multiple segments.
> - * So, for mbufs that planned to be involved into RX/TX, the recommended
> - * minimal buffer length is 2KB + RTE_PKTMBUF_HEADROOM.
> - */
> -#define	RTE_MBUF_DEFAULT_DATAROOM	2048
> -#define	RTE_MBUF_DEFAULT_BUF_SIZE	\
> -	(RTE_MBUF_DEFAULT_DATAROOM + RTE_PKTMBUF_HEADROOM)
> -
> -/* define a set of marker types that can be used to refer to set points in the
> - * mbuf.
> - */
> -__extension__
> -typedef void    *MARKER[0];   /**< generic marker for a point in a structure */
> -__extension__
> -typedef uint8_t  MARKER8[0];  /**< generic marker with 1B alignment */
> -__extension__
> -typedef uint64_t MARKER64[0];
> -/**< marker that allows us to overwrite 8 bytes with a single assignment */
> -
> -typedef struct {
> -	volatile int16_t cnt; /**< An internal counter value. */
> -} rte_atomic16_t;
> -
> -#define RTE_CACHE_LINE_MIN_SIZE 64      /**< Minimum Cache line size. */
> -
> -/**
> - * Force minimum cache line alignment.
> - */
> -#define __rte_cache_min_aligned __rte_aligned(RTE_CACHE_LINE_MIN_SIZE)
> -
> -/**
> - * IO virtual address type.
> - * When the physical addressing mode (IOVA as PA) is in use,
> - * the translation from an IO virtual address (IOVA) to a physical address
> - * is a direct mapping, i.e. the same value.
> - * Otherwise, in virtual mode (IOVA as VA), an IOMMU may do the translation.
> - */
> -typedef uint64_t rte_iova_t;
> -#define RTE_BAD_IOVA ((rte_iova_t)-1)
> -
> -/**
> - * The generic rte_mbuf, containing a packet mbuf.
> - */
> -struct rte_mbuf {
> -	MARKER cacheline0;
> -
> -	void *buf_addr;           /**< Virtual address of segment buffer. */
> -	/**
> -	 * Physical address of segment buffer.
> -	 * Force alignment to 8-bytes, so as to ensure we have the exact
> -	 * same mbuf cacheline0 layout for 32-bit and 64-bit. This makes
> -	 * working on vector drivers easier.
> -	 */
> -	RTE_STD_C11
> -	union {
> -		rte_iova_t buf_iova;
> -		rte_iova_t buf_physaddr; /**< deprecated */
> -	} __rte_aligned(sizeof(rte_iova_t));
> -
> -	/* next 8 bytes are initialised on RX descriptor rearm */
> -	MARKER64 rearm_data;
> -	uint16_t data_off;
> -
> -	/**
> -	 * Reference counter. Its size should at least equal to the size
> -	 * of port field (16 bits), to support zero-copy broadcast.
> -	 * It should only be accessed using the following functions:
> -	 * rte_mbuf_refcnt_update(), rte_mbuf_refcnt_read(), and
> -	 * rte_mbuf_refcnt_set(). The functionality of these functions (atomic,
> -	 * or non-atomic) is controlled by the CONFIG_RTE_MBUF_REFCNT_ATOMIC
> -	 * config option.
> -	 */
> -	RTE_STD_C11
> -	union {
> -		rte_atomic16_t refcnt_atomic; /**< Atomically accessed refcnt */
> -		uint16_t refcnt;
> -		/**< Non-atomically accessed refcnt */
> -	};
> -	uint16_t nb_segs;         /**< Number of segments. */
> -
> -	/** Input port (16 bits to support more than 256 virtual ports). */
> -	uint16_t port;
> -
> -	uint64_t ol_flags;        /**< Offload features. */
> -
> -	/* remaining bytes are set on RX when pulling packet from descriptor */
> -	MARKER rx_descriptor_fields1;
> -
> -	/*
> -	 * The packet type, which is the combination of outer/inner L2, L3, L4
> -	 * and tunnel types. The packet_type is about data really present in the
> -	 * mbuf. Example: if vlan stripping is enabled, a received vlan packet
> -	 * would have RTE_PTYPE_L2_ETHER and not RTE_PTYPE_L2_VLAN because the
> -	 * vlan is stripped from the data.
> -	 */
> -	RTE_STD_C11
> -	union {
> -		uint32_t packet_type; /**< L2/L3/L4 and tunnel information. */
> -		struct {
> -			uint32_t l2_type:4; /**< (Outer) L2 type. */
> -			uint32_t l3_type:4; /**< (Outer) L3 type. */
> -			uint32_t l4_type:4; /**< (Outer) L4 type. */
> -			uint32_t tun_type:4; /**< Tunnel type. */
> -			uint32_t inner_l2_type:4; /**< Inner L2 type. */
> -			uint32_t inner_l3_type:4; /**< Inner L3 type. */
> -			uint32_t inner_l4_type:4; /**< Inner L4 type. */
> -		};
> -	};
> -
> -	uint32_t pkt_len;         /**< Total pkt len: sum of all segments. */
> -	uint16_t data_len;        /**< Amount of data in segment buffer. */
> -	/** VLAN TCI (CPU order), valid if PKT_RX_VLAN_STRIPPED is set. */
> -	uint16_t vlan_tci;
> -
> -	union {
> -		uint32_t rss;     /**< RSS hash result if RSS enabled */
> -		struct {
> -			RTE_STD_C11
> -			union {
> -				struct {
> -					uint16_t hash;
> -					uint16_t id;
> -				};
> -				uint32_t lo;
> -				/**< Second 4 flexible bytes */
> -			};
> -			uint32_t hi;
> -			/**< First 4 flexible bytes or FD ID, dependent on
> -			 *   PKT_RX_FDIR_* flag in ol_flags.
> -			 */
> -		} fdir;           /**< Filter identifier if FDIR enabled */
> -		struct {
> -			uint32_t lo;
> -			uint32_t hi;
> -		} sched;          /**< Hierarchical scheduler */
> -		uint32_t usr;
> -		/**< User defined tags. See rte_distributor_process() */
> -	} hash;                   /**< hash information */
> -
> -	/** Outer VLAN TCI (CPU order), valid if PKT_RX_QINQ_STRIPPED is set. */
> -	uint16_t vlan_tci_outer;
> -
> -	uint16_t buf_len;         /**< Length of segment buffer. */
> -
> -	/** Valid if PKT_RX_TIMESTAMP is set. The unit and time reference
> -	 * are not normalized but are always the same for a given port.
> -	 */
> -	uint64_t timestamp;
> -
> -	/* second cache line - fields only used in slow path or on TX */
> -	MARKER cacheline1 __rte_cache_min_aligned;
> -
> -	RTE_STD_C11
> -	union {
> -		void *userdata;   /**< Can be used for external metadata */
> -		uint64_t udata64; /**< Allow 8-byte userdata on 32-bit */
> -	};
> -
> -	struct rte_mempool *pool; /**< Pool from which mbuf was allocated. */
> -	struct rte_mbuf *next;    /**< Next segment of scattered packet. */
> -
> -	/* fields to support TX offloads */
> -	RTE_STD_C11
> -	union {
> -		uint64_t tx_offload;       /**< combined for easy fetch */
> -		__extension__
> -		struct {
> -			uint64_t l2_len:7;
> -			/**< L2 (MAC) Header Length for non-tunneling pkt.
> -			 * Outer_L4_len + ... + Inner_L2_len for tunneling pkt.
> -			 */
> -			uint64_t l3_len:9; /**< L3 (IP) Header Length. */
> -			uint64_t l4_len:8; /**< L4 (TCP/UDP) Header Length. */
> -			uint64_t tso_segsz:16; /**< TCP TSO segment size */
> -
> -			/* fields for TX offloading of tunnels */
> -			uint64_t outer_l3_len:9;
> -			/**< Outer L3 (IP) Hdr Length. */
> -			uint64_t outer_l2_len:7;
> -			/**< Outer L2 (MAC) Hdr Length. */
> -
> -			/* uint64_t unused:8; */
> -		};
> -	};
> -
> -	/** Size of the application private data. In case of an indirect
> -	 * mbuf, it stores the direct mbuf private data size.
> -	 */
> -	uint16_t priv_size;
> -
> -	/** Timesync flags for use with IEEE1588. */
> -	uint16_t timesync;
> -
> -	/** Sequence number. See also rte_reorder_insert(). */
> -	uint32_t seqn;
> -
> -} __rte_cache_aligned;
> -
> -
> -/**
> - * Returns TRUE if given mbuf is cloned by mbuf indirection, or FALSE
> - * otherwise.
> - *
> - * If a mbuf has its data in another mbuf and references it by mbuf
> - * indirection, this mbuf can be defined as a cloned mbuf.
> - */
> -#define RTE_MBUF_CLONED(mb)     ((mb)->ol_flags & IND_ATTACHED_MBUF)
> -
> -/**
> - * Returns TRUE if given mbuf is direct, or FALSE otherwise.
> - *
> - * If a mbuf embeds its own data after the rte_mbuf structure, this mbuf
> - * can be defined as a direct mbuf.
> - */
> -#define RTE_MBUF_DIRECT(mb)     (!RTE_MBUF_CLONED(mb))
> -
> -/**
> - * Private data in case of pktmbuf pool.
> - *
> - * A structure that contains some pktmbuf_pool-specific data that are
> - * appended after the mempool structure (in private data).
> - */
> -struct rte_pktmbuf_pool_private {
> -	uint16_t mbuf_data_room_size; /**< Size of data space in each mbuf. */
> -	uint16_t mbuf_priv_size;      /**< Size of private area in each mbuf. */
> -};
> -
> -/**
> - * A macro that points to an offset into the data in the mbuf.
> - *
> - * The returned pointer is cast to type t. Before using this
> - * function, the user must ensure that the first segment is large
> - * enough to accommodate its data.
> - *
> - * @param m
> - *   The packet mbuf.
> - * @param o
> - *   The offset into the mbuf data.
> - * @param t
> - *   The type to cast the result into.
> - */
> -#define rte_pktmbuf_mtod_offset(m, t, o)	\
> -	((t)((char *)(m)->buf_addr + (m)->data_off + (o)))
> -
> -/**
> - * A macro that points to the start of the data in the mbuf.
> - *
> - * The returned pointer is cast to type t. Before using this
> - * function, the user must ensure that the first segment is large
> - * enough to accommodate its data.
> - *
> - * @param m
> - *   The packet mbuf.
> - * @param t
> - *   The type to cast the result into.
> - */
> -#define rte_pktmbuf_mtod(m, t) rte_pktmbuf_mtod_offset(m, t, 0)
> -
> -#ifdef __cplusplus
> -}
> -#endif
> -
> -#endif /* _MBUF_H_ */
> diff --git a/examples/bpf/t2.c b/examples/bpf/t2.c
> index 69d7a4fe1..9878eaf7b 100644
> --- a/examples/bpf/t2.c
> +++ b/examples/bpf/t2.c
> @@ -16,7 +16,7 @@
>   #include <stdint.h>
>   #include <stddef.h>
>   #include <rte_config.h>
> -#include "mbuf.h"
> +#include <rte_mbuf_core.h>
>   
>   uint64_t
>   entry(void *pkt)
> @@ -25,7 +25,7 @@ entry(void *pkt)
>   
>   	mb = pkt;
>   	mb->vlan_tci = 0;
> -	mb->ol_flags &= ~(PKT_RX_VLAN_PKT | PKT_RX_VLAN_STRIPPED);
> +	mb->ol_flags &= ~(PKT_RX_VLAN | PKT_RX_VLAN_STRIPPED);
>   
>   	return 1;
>   }
> diff --git a/examples/bpf/t3.c b/examples/bpf/t3.c
> index 9ba34638a..f58ff64b3 100644
> --- a/examples/bpf/t3.c
> +++ b/examples/bpf/t3.c
> @@ -22,7 +22,7 @@
>   #include <stdio.h>
>   #include <net/ethernet.h>
>   #include <rte_config.h>
> -#include "mbuf.h"
> +#include <rte_mbuf_core.h>
>   #include <arpa/inet.h>
>   
>   extern void rte_pktmbuf_dump(FILE *, const struct rte_mbuf *, unsigned int);
>