-/*-
- * BSD LICENSE
- *
- * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
- * Copyright 2014 6WIND S.A.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- * * Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- * * Neither the name of Intel Corporation nor the names of its
- * contributors may be used to endorse or promote products derived
- * from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+/* SPDX-License-Identifier: BSD-3-Clause
+ * Copyright(c) 2010-2014 Intel Corporation.
+ * Copyright 2014 6WIND S.A.
*/
#ifndef _RTE_MBUF_H_
*/
#include <stdint.h>
+#include <rte_compat.h>
#include <rte_common.h>
#include <rte_config.h>
#include <rte_mempool.h>
#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
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. */
+ /** VLAN TCI (CPU order), valid if PKT_RX_VLAN is set. */
uint16_t vlan_tci;
union {
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. */
+ /** Outer VLAN TCI (CPU order), valid if PKT_RX_QINQ is set. */
uint16_t vlan_tci_outer;
uint16_t buf_len; /**< Length of segment buffer. */
rte_mbuf_raw_free(m);
}
-/* Operations on ctrl mbuf */
-
-/**
- * The control mbuf constructor.
- *
- * This function initializes some fields in an mbuf structure that are
- * not modified by the user once created (mbuf type, origin pool, buffer
- * start address, and so on). This function is given as a callback function
- * to rte_mempool_obj_iter() or rte_mempool_create() at pool creation time.
- *
- * @param mp
- * The mempool from which the mbuf is allocated.
- * @param opaque_arg
- * A pointer that can be used by the user to retrieve useful information
- * for mbuf initialization. This pointer is the opaque argument passed to
- * rte_mempool_obj_iter() or rte_mempool_create().
- * @param m
- * The mbuf to initialize.
- * @param i
- * The index of the mbuf in the pool table.
- */
-void rte_ctrlmbuf_init(struct rte_mempool *mp, void *opaque_arg,
- void *m, unsigned i);
-
-/**
- * Allocate a new mbuf (type is ctrl) from mempool *mp*.
- *
- * This new mbuf is initialized with data pointing to the beginning of
- * buffer, and with a length of zero.
- *
- * @param mp
- * The mempool from which the mbuf is allocated.
- * @return
- * - The pointer to the new mbuf on success.
- * - NULL if allocation failed.
- */
-#define rte_ctrlmbuf_alloc(mp) rte_pktmbuf_alloc(mp)
-
-/**
- * Free a control mbuf back into its original mempool.
- *
- * @param m
- * The control mbuf to be freed.
- */
-#define rte_ctrlmbuf_free(m) rte_pktmbuf_free(m)
-
-/**
- * A macro that returns the pointer to the carried data.
- *
- * The value that can be read or assigned.
- *
- * @param m
- * The control mbuf.
- */
-#define rte_ctrlmbuf_data(m) ((char *)((m)->buf_addr) + (m)->data_off)
-
-/**
- * A macro that returns the length of the carried data.
- *
- * The value that can be read or assigned.
- *
- * @param m
- * The control mbuf.
- */
-#define rte_ctrlmbuf_len(m) rte_pktmbuf_data_len(m)
-
-/**
- * Tests if an mbuf is a control mbuf
- *
- * @param m
- * The mbuf to be tested
- * @return
- * - True (1) if the mbuf is a control mbuf
- * - False(0) otherwise
- */
-static inline int
-rte_is_ctrlmbuf(struct rte_mbuf *m)
-{
- return !!(m->ol_flags & CTRL_MBUF_FLAG);
-}
-
-/* Operations on pkt mbuf */
-
/**
* The packet mbuf constructor.
*
unsigned cache_size, uint16_t priv_size, uint16_t data_room_size,
int socket_id);
+/**
+ * Create a mbuf pool with a given mempool ops name
+ *
+ * This function creates and initializes a packet mbuf pool. It is
+ * a wrapper to rte_mempool functions.
+ *
+ * @param name
+ * The name of the mbuf pool.
+ * @param n
+ * The number of elements in the mbuf pool. The optimum size (in terms
+ * of memory usage) for a mempool is when n is a power of two minus one:
+ * n = (2^q - 1).
+ * @param cache_size
+ * Size of the per-core object cache. See rte_mempool_create() for
+ * details.
+ * @param priv_size
+ * Size of application private are between the rte_mbuf structure
+ * and the data buffer. This value must be aligned to RTE_MBUF_PRIV_ALIGN.
+ * @param data_room_size
+ * Size of data buffer in each mbuf, including RTE_PKTMBUF_HEADROOM.
+ * @param socket_id
+ * The socket identifier where the memory should be allocated. The
+ * value can be *SOCKET_ID_ANY* if there is no NUMA constraint for the
+ * reserved zone.
+ * @param ops_name
+ * The mempool ops name to be used for this mempool instead of
+ * default mempool. The value can be *NULL* to use default mempool.
+ * @return
+ * The pointer to the new allocated mempool, on success. NULL on error
+ * with rte_errno set appropriately. Possible rte_errno values include:
+ * - E_RTE_NO_CONFIG - function could not get pointer to rte_config structure
+ * - E_RTE_SECONDARY - function was called from a secondary process instance
+ * - EINVAL - cache size provided is too large, or priv_size is not aligned.
+ * - ENOSPC - the maximum number of memzones has already been allocated
+ * - EEXIST - a memzone with the same name already exists
+ * - ENOMEM - no appropriate memory area found in which to create memzone
+ */
+struct rte_mempool * __rte_experimental
+rte_pktmbuf_pool_create_by_ops(const char *name, unsigned int n,
+ unsigned int cache_size, uint16_t priv_size, uint16_t data_room_size,
+ int socket_id, const char *ops_name);
+
/**
* Get the data room size of mbufs stored in a pktmbuf_pool
*
git.droids-corp.org / dpdk.git / blobdiff