1#ifndef __CODA_PSDEV_H 2#define __CODA_PSDEV_H 3 4#define CODA_PSDEV_MAJOR 67 5#define MAX_CODADEVS 5 /* how many do we allow */ 6 7#define CODA_SUPER_MAGIC 0x73757245 8 9struct coda_sb_info 10{ 11 struct venus_comm * sbi_vcomm; 12 struct super_block *sbi_sb; 13 struct list_head sbi_cihead; 14 struct semaphore sbi_iget4_mutex; 15}; 16 17/* communication pending/processing queues */ 18struct venus_comm { 19 u_long vc_seq; 20 wait_queue_head_t vc_waitq; /* Venus wait queue */ 21 struct list_head vc_pending; 22 struct list_head vc_processing; 23 int vc_inuse; 24 struct super_block *vc_sb; 25}; 26 27 28static inline struct coda_sb_info *coda_sbp(struct super_block *sb) 29{ 30 return ((struct coda_sb_info *)((sb)->u.generic_sbp)); 31} 32 33 34/* upcalls */ 35int venus_rootfid(struct super_block *sb, ViceFid *fidp); 36int venus_getattr(struct super_block *sb, struct ViceFid *fid, 37 struct coda_vattr *attr); 38int venus_setattr(struct super_block *, struct ViceFid *, 39 struct coda_vattr *); 40int venus_lookup(struct super_block *sb, struct ViceFid *fid, 41 const char *name, int length, int *type, 42 struct ViceFid *resfid); 43int venus_store(struct super_block *sb, struct ViceFid *fid, int flags, 44 struct coda_cred *); 45int venus_release(struct super_block *sb, struct ViceFid *fid, int flags); 46int venus_close(struct super_block *sb, struct ViceFid *fid, int flags, 47 struct coda_cred *); 48int venus_open(struct super_block *sb, struct ViceFid *fid, 49 int flags, struct file **f); 50int venus_mkdir(struct super_block *sb, struct ViceFid *dirfid, 51 const char *name, int length, 52 struct ViceFid *newfid, struct coda_vattr *attrs); 53int venus_create(struct super_block *sb, struct ViceFid *dirfid, 54 const char *name, int length, int excl, int mode, int rdev, 55 struct ViceFid *newfid, struct coda_vattr *attrs) ; 56int venus_rmdir(struct super_block *sb, struct ViceFid *dirfid, 57 const char *name, int length); 58int venus_remove(struct super_block *sb, struct ViceFid *dirfid, 59 const char *name, int length); 60int venus_readlink(struct super_block *sb, struct ViceFid *fid, 61 char *buffer, int *length); 62int venus_rename(struct super_block *, struct ViceFid *new_fid, 63 struct ViceFid *old_fid, size_t old_length, 64 size_t new_length, const char *old_name, 65 const char *new_name); 66int venus_link(struct super_block *sb, struct ViceFid *fid, 67 struct ViceFid *dirfid, const char *name, int len ); 68int venus_symlink(struct super_block *sb, struct ViceFid *fid, 69 const char *name, int len, const char *symname, int symlen); 70int venus_access(struct super_block *sb, struct ViceFid *fid, int mask); 71int venus_pioctl(struct super_block *sb, struct ViceFid *fid, 72 unsigned int cmd, struct PioctlData *data); 73int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb); 74int venus_fsync(struct super_block *sb, struct ViceFid *fid); 75int venus_statfs(struct super_block *sb, struct statfs *sfs); 76 77 78/* messages between coda filesystem in kernel and Venus */ 79extern int coda_hard; 80extern unsigned long coda_timeout; 81struct upc_req { 82 struct list_head uc_chain; 83 caddr_t uc_data; 84 u_short uc_flags; 85 u_short uc_inSize; /* Size is at most 5000 bytes */ 86 u_short uc_outSize; 87 u_short uc_opcode; /* copied from data to save lookup */ 88 int uc_unique; 89 wait_queue_head_t uc_sleep; /* process' wait queue */ 90 unsigned long uc_posttime; 91}; 92 93#define REQ_ASYNC 0x1 94#define REQ_READ 0x2 95#define REQ_WRITE 0x4 96#define REQ_ABORT 0x8 97 98 99/* 100 * Statistics 101 */ 102struct coda_upcallstats { 103 int ncalls; /* client requests */ 104 int nbadcalls; /* upcall failures */ 105 int reqs[CODA_NCALLS]; /* count of each request */ 106} ; 107 108extern struct coda_upcallstats coda_callstats; 109extern struct venus_comm coda_comms[]; 110 111static inline void clstats(int opcode) 112{ 113 coda_callstats.ncalls++; 114 if ( (0 <= opcode) && (opcode <= CODA_NCALLS) ) 115 coda_callstats.reqs[opcode]++; 116 else 117 printk("clstats called with bad opcode %d\n", opcode); 118} 119 120static inline void badclstats(void) 121{ 122 coda_callstats.nbadcalls++; 123} 124 125#endif 126