DPDK  16.11.9
rte_eal_memconfig.h
1 /*-
2  * BSD LICENSE
3  *
4  * Copyright(c) 2010-2014 Intel Corporation. All rights reserved.
5  * All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  *
11  * * Redistributions of source code must retain the above copyright
12  * notice, this list of conditions and the following disclaimer.
13  * * Redistributions in binary form must reproduce the above copyright
14  * notice, this list of conditions and the following disclaimer in
15  * the documentation and/or other materials provided with the
16  * distribution.
17  * * Neither the name of Intel Corporation nor the names of its
18  * contributors may be used to endorse or promote products derived
19  * from this software without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22  * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23  * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24  * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25  * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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27  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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29  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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31  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32  */
33 
34 #ifndef _RTE_EAL_MEMCONFIG_H_
35 #define _RTE_EAL_MEMCONFIG_H_
36 
37 #include <rte_tailq.h>
38 #include <rte_memory.h>
39 #include <rte_memzone.h>
40 #include <rte_malloc_heap.h>
41 #include <rte_rwlock.h>
42 
43 #ifdef __cplusplus
44 extern "C" {
45 #endif
46 
53  volatile uint32_t magic;
55  /* memory topology */
56  uint32_t nchannel;
57  uint32_t nrank;
70  uint32_t memzone_cnt;
72  /* memory segments and zones */
73  struct rte_memseg memseg[RTE_MAX_MEMSEG];
74  struct rte_memzone memzone[RTE_MAX_MEMZONE];
76  struct rte_tailq_head tailq_head[RTE_MAX_TAILQ];
78  /* Heaps of Malloc per socket */
79  struct malloc_heap malloc_heaps[RTE_MAX_NUMA_NODES];
80 
81  /* address of mem_config in primary process. used to map shared config into
82  * exact same address the primary process maps it.
83  */
84  uint64_t mem_cfg_addr;
85 } __attribute__((__packed__));
86 
87 
88 inline static void
89 rte_eal_mcfg_wait_complete(struct rte_mem_config* mcfg)
90 {
91  /* wait until shared mem_config finish initialising */
92  while(mcfg->magic != RTE_MAGIC)
93  rte_pause();
94 }
95 
96 #ifdef __cplusplus
97 }
98 #endif
99 
100 #endif /*__RTE_EAL_MEMCONFIG_H_*/