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/* Copyright (c) 2013-2018, Linaro Limited
* Copyright (c) 2021-2023, Nokia
* All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
/**
* @file
*
* ODP buffer descriptor - implementation internal
*/
#ifndef ODP_BUFFER_INTERNAL_H_
#define ODP_BUFFER_INTERNAL_H_
#ifdef __cplusplus
extern "C" {
#endif
#include <odp/api/align.h>
#include <odp/api/buffer.h>
#include <odp/api/byteorder.h>
#include <odp/api/debug.h>
#include <odp/api/event.h>
#include <odp/api/pool.h>
#include <odp/api/std_types.h>
#include <odp/api/thread.h>
#include <odp_config_internal.h>
#include <odp_event_internal.h>
#include <sys/types.h>
#include <stddef.h>
/* DPDK */
#include <rte_config.h>
#if defined(__clang__)
#undef RTE_TOOLCHAIN_GCC
#endif
#include <rte_mbuf.h>
/* ppc64 rte_memcpy.h (included through rte_mbuf.h) may define vector */
#if defined(__PPC64__) && defined(vector)
#undef vector
#endif
/* Type size limits number of flow IDs supported */
#define BUF_HDR_MAX_FLOW_ID 255
/* Internal buffer header */
typedef struct ODP_ALIGNED_CACHE odp_buffer_hdr_t {
/* Underlying DPDK rte_mbuf */
struct rte_mbuf mb;
/* Common internal header */
_odp_event_hdr_int_t event_hdr;
/* User area pointer */
void *uarea_addr;
} odp_buffer_hdr_t;
ODP_STATIC_ASSERT(sizeof(odp_buffer_hdr_t) <= 3 * RTE_CACHE_LINE_SIZE,
"Additional cache line required for odp_buffer_hdr_t");
static inline struct rte_mbuf *_odp_buf_to_mbuf(odp_buffer_t buf)
{
return (struct rte_mbuf *)(uintptr_t)buf;
}
static inline odp_buffer_hdr_t *_odp_buf_hdr(odp_buffer_t buf)
{
return (odp_buffer_hdr_t *)(uintptr_t)buf;
}
static inline void _odp_buffer_subtype_set(odp_buffer_t buf, int subtype)
{
odp_buffer_hdr_t *buf_hdr = _odp_buf_hdr(buf);
buf_hdr->event_hdr.subtype = subtype;
}
#ifdef __cplusplus
}
#endif
#endif
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