xref: /kernel/liteos_a/fs/include/vfs_config.h (revision 0d163575) 
1/*
2 * Copyright (c) 2013-2019 Huawei Technologies Co., Ltd. All rights reserved.
3 * Copyright (c) 2020-2021 Huawei Device Co., Ltd. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without modification,
6 * are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this list of
9 *    conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice, this list
12 *    of conditions and the following disclaimer in the documentation and/or other materials
13 *    provided with the distribution.
14 *
15 * 3. Neither the name of the copyright holder nor the names of its contributors may be used
16 *    to endorse or promote products derived from this software without specific prior written
17 *    permission.
18 *
19 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
20 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
21 * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
22 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR
23 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
24 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
25 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
26 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
27 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
28 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
29 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30 */
31
32
33#ifndef _VFS_CONFIG_H_
34#define _VFS_CONFIG_H_
35
36#include "los_config.h"
37
38#ifdef __cplusplus
39#if __cplusplus
40extern "C" {
41#endif /* __cplusplus */
42#endif /* __cplusplus */
43
44#define PATH_MAX 256
45#define CONFIG_DISABLE_MQUEUE   // disable posix mqueue inode configure
46
47/* file system config */
48
49#define CONFIG_FS_WRITABLE      // enable file system can be written
50#define CONFIG_FS_READABLE      // enable file system can be read
51#define CONFIG_DEBUG_FS         // enable vfs debug function
52
53
54/* fatfs cache config */
55/* config block size for fat file system, only can be 0,32,64,128,256,512,1024 */
56#define CONFIG_FS_FAT_SECTOR_PER_BLOCK  64
57
58/* config block num for fat file system */
59#define CONFIG_FS_FAT_READ_NUMS         7
60#define CONFIG_FS_FAT_BLOCK_NUMS        28
61
62#ifdef LOSCFG_FS_FAT_CACHE_SYNC_THREAD
63
64/* config the priority of sync task */
65
66#define CONFIG_FS_FAT_SYNC_THREAD_PRIO 10
67
68/* config dirty ratio of bcache for fat file system */
69
70#define CONFIG_FS_FAT_DIRTY_RATIO      60
71
72/* config time interval of sync thread for fat file system, in milliseconds */
73
74#define CONFIG_FS_FAT_SYNC_INTERVAL    5000
75#endif
76
77#define CONFIG_FS_FLASH_BLOCK_NUM 1
78
79#define CONFIG_FS_MAX_LNK_CNT 40
80
81/* nfs configure */
82
83#define CONFIG_NFS_MACHINE_NAME "IPC"   // nfs device name is IPC
84#define CONFIG_NFS_MACHINE_NAME_SIZE 3  // size of nfs machine name
85
86
87/* file descriptors configure */
88
89#define CONFIG_NFILE_STREAMS        1   // enable file stream
90#define CONFIG_STDIO_BUFFER_SIZE    0
91#define CONFIG_NUNGET_CHARS         0
92#define MIN_START_FD 3 // 0,1,2 are used for stdin,stdout,stderr respectively
93
94#define FD_SET_TOTAL_SIZE               (FD_SETSIZE + CONFIG_NEXPANED_DESCRIPTORS)
95#define FD_SETSIZE                      (CONFIG_NFILE_DESCRIPTORS + CONFIG_NSOCKET_DESCRIPTORS)
96#define CONFIG_NEXPANED_DESCRIPTORS     (CONFIG_NTIME_DESCRIPTORS + CONFIG_NQUEUE_DESCRIPTORS)
97#define TIMER_FD_OFFSET                 FD_SETSIZE
98#define MQUEUE_FD_OFFSET                (FD_SETSIZE + CONFIG_NTIME_DESCRIPTORS)
99#define EPOLL_FD_OFFSET                 (FD_SETSIZE + CONFIG_NTIME_DESCRIPTORS + CONFIG_NQUEUE_DESCRIPTORS)
100
101/* net configure */
102
103#ifdef LOSCFG_NET_LWIP_SACK             // enable socket and net function
104#include "lwip/lwipopts.h"
105#define CONFIG_NSOCKET_DESCRIPTORS  LWIP_CONFIG_NUM_SOCKETS  // max numbers of socket descriptor
106
107/* max numbers of other descriptors except socket descriptors */
108
109#define CONFIG_NFILE_DESCRIPTORS    512
110#define CONFIG_NET_SENDFILE         1   // enable sendfile function
111#define CONFIG_NET_TCP              1   // enable sendfile and send function
112#else
113#define CONFIG_NSOCKET_DESCRIPTORS  0
114#define CONFIG_NFILE_DESCRIPTORS    512
115#define CONFIG_NET_SENDFILE         0   // disable sendfile function
116#define CONFIG_NET_TCP              0   // disable sendfile and send function
117#endif
118
119#define NR_OPEN_DEFAULT CONFIG_NFILE_DESCRIPTORS
120
121/* time configure */
122
123#define CONFIG_NTIME_DESCRIPTORS     0
124
125/* mqueue configure */
126
127#define CONFIG_NQUEUE_DESCRIPTORS    256
128
129/* directory configure */
130
131#define VFS_USING_WORKDIR               // enable current working directory
132
133#define CONFIG_EPOLL_DESCRIPTORS    32
134
135/* permission configure */
136#define DEFAULT_DIR_MODE        0777
137#define DEFAULT_FILE_MODE       0666
138
139#define MAX_DIRENT_NUM 14 // 14 means 4096 length buffer can store 14 dirent, see struct DIR
140
141#ifdef __cplusplus
142#if __cplusplus
143}
144#endif /* __cplusplus */
145#endif /* __cplusplus */
146#endif
147