diff options
author | Ido Barnea <ibarnea@cisco.com> | 2016-08-08 13:07:20 +0300 |
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committer | Ido Barnea <ibarnea@cisco.com> | 2016-08-08 13:07:20 +0300 |
commit | dc56569b146966c17433fef70d4eb5456871dcc6 (patch) | |
tree | 73eb19c9aad6570007fd808e478b7a23f6ca835c /src/dpdk22/lib/librte_eal/common/include/rte_tailq.h | |
parent | 2067ee3de8e6664e66f872a0b5c6d1b68b99625a (diff) |
removed dpdk22 files
Diffstat (limited to 'src/dpdk22/lib/librte_eal/common/include/rte_tailq.h')
-rw-r--r-- | src/dpdk22/lib/librte_eal/common/include/rte_tailq.h | 162 |
1 files changed, 0 insertions, 162 deletions
diff --git a/src/dpdk22/lib/librte_eal/common/include/rte_tailq.h b/src/dpdk22/lib/librte_eal/common/include/rte_tailq.h deleted file mode 100644 index 4a686e68..00000000 --- a/src/dpdk22/lib/librte_eal/common/include/rte_tailq.h +++ /dev/null @@ -1,162 +0,0 @@ -/*- - * BSD LICENSE - * - * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. - * 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. - */ - -#ifndef _RTE_TAILQ_H_ -#define _RTE_TAILQ_H_ - -/** - * @file - * Here defines rte_tailq APIs for only internal use - * - */ - -#ifdef __cplusplus -extern "C" { -#endif - -#include <sys/queue.h> -#include <stdio.h> -#include <rte_debug.h> - -/** dummy structure type used by the rte_tailq APIs */ -struct rte_tailq_entry { - TAILQ_ENTRY(rte_tailq_entry) next; /**< Pointer entries for a tailq list */ - void *data; /**< Pointer to the data referenced by this tailq entry */ -}; -/** dummy */ -TAILQ_HEAD(rte_tailq_entry_head, rte_tailq_entry); - -#define RTE_TAILQ_NAMESIZE 32 - -/** - * The structure defining a tailq header entry for storing - * in the rte_config structure in shared memory. Each tailq - * is identified by name. - * Any library storing a set of objects e.g. rings, mempools, hash-tables, - * is recommended to use an entry here, so as to make it easy for - * a multi-process app to find already-created elements in shared memory. - */ -struct rte_tailq_head { - struct rte_tailq_entry_head tailq_head; /**< NOTE: must be first element */ - char name[RTE_TAILQ_NAMESIZE]; -}; - -struct rte_tailq_elem { - /** - * Reference to head in shared mem, updated at init time by - * rte_eal_tailqs_init() - */ - struct rte_tailq_head *head; - TAILQ_ENTRY(rte_tailq_elem) next; - const char name[RTE_TAILQ_NAMESIZE]; -}; - -/** - * Return the first tailq entry casted to the right struct. - */ -#define RTE_TAILQ_CAST(tailq_entry, struct_name) \ - (struct struct_name *)&(tailq_entry)->tailq_head - -/** - * Utility macro to make looking up a tailqueue for a particular struct easier. - * - * @param name - * The name of tailq - * - * @param struct_name - * The name of the list type we are using. (Generally this is the same as the - * first parameter passed to TAILQ_HEAD macro) - * - * @return - * The return value from rte_eal_tailq_lookup, typecast to the appropriate - * structure pointer type. - * NULL on error, since the tailq_head is the first - * element in the rte_tailq_head structure. - */ -#define RTE_TAILQ_LOOKUP(name, struct_name) \ - RTE_TAILQ_CAST(rte_eal_tailq_lookup(name), struct_name) - -/** - * Dump tail queues to the console. - * - * @param f - * A pointer to a file for output - */ -void rte_dump_tailq(FILE *f); - -/** - * Lookup for a tail queue. - * - * Get a pointer to a tail queue header of a tail - * queue identified by the name given as an argument. - * Note: this function is not multi-thread safe, and should only be called from - * a single thread at a time - * - * @param name - * The name of the queue. - * @return - * A pointer to the tail queue head structure. - */ -struct rte_tailq_head *rte_eal_tailq_lookup(const char *name); - -/** - * Register a tail queue. - * - * Register a tail queue from shared memory. - * This function is mainly used by EAL_REGISTER_TAILQ macro which is used to - * register tailq from the different dpdk libraries. Since this macro is a - * constructor, the function has no access to dpdk shared memory, so the - * registered tailq can not be used before call to rte_eal_init() which calls - * rte_eal_tailqs_init(). - * - * @param t - * The tailq element which contains the name of the tailq you want to - * create (/retrieve when in secondary process). - * @return - * 0 on success or -1 in case of an error. - */ -int rte_eal_tailq_register(struct rte_tailq_elem *t); - -#define EAL_REGISTER_TAILQ(t) \ -void tailqinitfn_ ##t(void); \ -void __attribute__((constructor, used)) tailqinitfn_ ##t(void) \ -{ \ - if (rte_eal_tailq_register(&t) < 0) \ - rte_panic("Cannot initialize tailq: %s\n", t.name); \ -} - -#ifdef __cplusplus -} -#endif - -#endif /* _RTE_TAILQ_H_ */ |