1 #ifndef __CODA_PSDEV_H 2 #define __CODA_PSDEV_H 3 4 #include <linux/magic.h> 5 6 #define CODA_PSDEV_MAJOR 67 7 #define MAX_CODADEVS 5 /* how many do we allow */ 8 9 struct kstatfs; 10 11 /* communication pending/processing queues */ 12 struct venus_comm { 13 u_long vc_seq; 14 wait_queue_head_t vc_waitq; /* Venus wait queue */ 15 struct list_head vc_pending; 16 struct list_head vc_processing; 17 int vc_inuse; 18 struct super_block *vc_sb; 19 }; 20 21 22 static __inline__ struct venus_comm *coda_vcp(struct super_block *sb) 23 { 24 return (struct venus_comm *)((sb)->s_fs_info); 25 } 26 27 28 /* upcalls */ 29 int venus_rootfid(struct super_block *sb, struct CodaFid *fidp); 30 int venus_getattr(struct super_block *sb, struct CodaFid *fid, 31 struct coda_vattr *attr); 32 int venus_setattr(struct super_block *, struct CodaFid *, struct coda_vattr *); 33 int venus_lookup(struct super_block *sb, struct CodaFid *fid, 34 const char *name, int length, int *type, 35 struct CodaFid *resfid); 36 int venus_close(struct super_block *sb, struct CodaFid *fid, int flags, 37 vuid_t uid); 38 int venus_open(struct super_block *sb, struct CodaFid *fid, int flags, 39 struct file **f); 40 int venus_mkdir(struct super_block *sb, struct CodaFid *dirfid, 41 const char *name, int length, 42 struct CodaFid *newfid, struct coda_vattr *attrs); 43 int venus_create(struct super_block *sb, struct CodaFid *dirfid, 44 const char *name, int length, int excl, int mode, 45 struct CodaFid *newfid, struct coda_vattr *attrs) ; 46 int venus_rmdir(struct super_block *sb, struct CodaFid *dirfid, 47 const char *name, int length); 48 int venus_remove(struct super_block *sb, struct CodaFid *dirfid, 49 const char *name, int length); 50 int venus_readlink(struct super_block *sb, struct CodaFid *fid, 51 char *buffer, int *length); 52 int venus_rename(struct super_block *, struct CodaFid *new_fid, 53 struct CodaFid *old_fid, size_t old_length, 54 size_t new_length, const char *old_name, 55 const char *new_name); 56 int venus_link(struct super_block *sb, struct CodaFid *fid, 57 struct CodaFid *dirfid, const char *name, int len ); 58 int venus_symlink(struct super_block *sb, struct CodaFid *fid, 59 const char *name, int len, const char *symname, int symlen); 60 int venus_access(struct super_block *sb, struct CodaFid *fid, int mask); 61 int venus_pioctl(struct super_block *sb, struct CodaFid *fid, 62 unsigned int cmd, struct PioctlData *data); 63 int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb); 64 int venus_fsync(struct super_block *sb, struct CodaFid *fid); 65 int venus_statfs(struct dentry *dentry, struct kstatfs *sfs); 66 67 68 /* messages between coda filesystem in kernel and Venus */ 69 struct upc_req { 70 struct list_head uc_chain; 71 caddr_t uc_data; 72 u_short uc_flags; 73 u_short uc_inSize; /* Size is at most 5000 bytes */ 74 u_short uc_outSize; 75 u_short uc_opcode; /* copied from data to save lookup */ 76 int uc_unique; 77 wait_queue_head_t uc_sleep; /* process' wait queue */ 78 }; 79 80 #define REQ_ASYNC 0x1 81 #define REQ_READ 0x2 82 #define REQ_WRITE 0x4 83 #define REQ_ABORT 0x8 84 85 86 /* 87 * Statistics 88 */ 89 90 extern struct venus_comm coda_comms[]; 91 92 #endif 93
