1 #ifndef __LINUX_SIM_OBD_H
2 #define __LINUX_SIM_OBD_H
5 #include <linux/ext2_fs.h>
7 #define OBD_PSDEV_MAJOR 120
8 #define MAX_OBD_DEVICES 2
10 struct obd_conn_info {
11 unsigned int conn_id; /* handle */
12 unsigned long conn_ino; /* root inode number */
13 unsigned long conn_blocksize;
14 unsigned char conn_blocksize_bits;
18 struct list_head typ_chain;
19 struct obd_ops *typ_ops;
25 struct obd_type *obd_type;
27 struct super_block * sb;
29 unsigned long prealloc_quota;
30 struct list_head clients;
33 #define OBD_FL_SETUP 0x1
36 int (*o_connect)(int minor, struct obd_conn_info *info);
37 int (*o_disconnect)(unsigned int conn_id);
38 int (*o_setup) (struct obd_device *dev, void *data);
39 int (*o_cleanup)(struct obd_device *dev);
40 int (*o_setattr)(unsigned int conn_id, unsigned long id, struct iattr *iattr);
41 int (*o_getattr)(unsigned int conn_id, unsigned long id, struct iattr *iattr);
42 int (*o_statfs)(unsigned int conn_id, struct statfs *statfs);
43 int (*o_create)(struct obd_device *, int prealloc_ino, int *er);
44 int (*o_destroy)(unsigned int conn_id, unsigned long ino);
45 unsigned long (*o_read)(unsigned int conn_id, unsigned long ino, char *buf, unsigned long count, loff_t offset, int *err);
46 unsigned long (*o_write)(unsigned int conn_id, unsigned long ino, char *buf, unsigned long count, loff_t offset, int *err);
47 long (*o_preallocate)(unsigned int conn_id, int req, long inodes[32], int *err);
48 void (*o_cleanup_device)(int dev);
51 int obd_register_type(struct obd_ops *ops, char *nm);
55 struct list_head cli_chain;
58 unsigned long cli_prealloc_quota;
59 struct list_head cli_prealloc_inodes;
62 struct obd_prealloc_inode {
63 struct list_head obd_prealloc_chain;
70 struct oic_prealloc_s {
72 unsigned long alloc; /* user sets it to the number of inodes requesting
73 * to be preallocated. kernel sets it to the actual number
74 * of succesfully preallocated inodes */
75 long inodes[32]; /* actual inode numbers */
91 #define OBD_IOC_CREATE _IOR ('f', 3, long)
92 #define OBD_IOC_SETUP_SUPER _IOW ('f', 4, long)
93 #define OBD_IOC_CLEANUP_SUPER _IO ('f', 5 )
94 #define OBD_IOC_DESTROY _IOW ('f', 6, long)
95 #define OBD_IOC_PREALLOCATE _IOWR('f', 7, long)
96 #define OBD_IOC_DEC_USE_COUNT _IO ('f', 8 )
97 #define OBD_IOC_SETATTR _IOW ('f', 9, long)
98 #define OBD_IOC_GETATTR _IOR ('f', 10, long)
99 #define OBD_IOC_READ _IOWR('f', 11, long)
100 #define OBD_IOC_WRITE _IOWR('f', 12, long)
101 #define OBD_IOC_CONNECT _IOR ('f', 13, long)
102 #define OBD_IOC_DISCONNECT _IOW ('f', 14, long)
103 #define OBD_IOC_STATFS _IOWR('f', 15, long)
104 #define OBD_IOC_SYNC _IOR ('f', 16, long)
106 #define OBD_IOC_DEC_FS_USE_COUNT _IO ('f', 32 )
110 extern void obd_sysctl_init (void);
111 extern void obd_sysctl_clean (void);
114 #endif /* __LINUX_SIM_OBD_H */