4 * Copyright(c) 2010-2012 Intel Corporation. All rights reserved.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
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
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.
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,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
33 * version: DPDK.L.1.2.3-3
38 * Holds the structures for the eal internal configuration
41 #ifndef _EAL_LINUXAPP_INTERNAL_CFG
42 #define _EAL_LINUXAPP_INTERNAL_CFG
44 #define MAX_HUGEPAGE_SIZES 3 /**< support up to 3 page sizes */
47 * internal configuration structure for the number, size and
48 * mount points of hugepages
50 struct hugepage_info {
51 uint64_t hugepage_sz; /**< size of a huge page */
52 const char *hugedir; /**< dir where hugetlbfs is mounted */
53 uint32_t num_pages; /**< number of hugepages of that size */
57 * internal configuration
59 struct internal_config {
60 volatile uint64_t memory; /* amount of asked memory */
61 volatile unsigned force_nchannel; /* force number of channels */
62 volatile unsigned force_nrank; /* force number of ranks */
63 volatile unsigned no_hugetlbfs; /* true to disable hugetlbfs */
64 volatile unsigned no_pci; /* true to disable PCI */
65 volatile unsigned no_hpet; /* true to disable HPET */
66 volatile unsigned no_shconf; /* true if there is no shared config */
67 volatile enum rte_proc_type_t process_type; /* multi-process proc type */
68 const char *hugefile_prefix; /* the base filename of hugetlbfs files */
69 const char *hugepage_dir; /* specific hugetlbfs directory to use */
71 unsigned num_hugepage_sizes; /* how many sizes on this system */
72 struct hugepage_info hugepage_info[MAX_HUGEPAGE_SIZES];
74 extern struct internal_config internal_config; /**< Global EAL configuration. */