| #ifndef __CODA_PSDEV_H |
| #define __CODA_PSDEV_H |
| |
| #define CODA_PSDEV_MAJOR 67 |
| #define MAX_CODADEVS 5 /* how many do we allow */ |
| |
| #define CODA_SUPER_MAGIC 0x73757245 |
| |
| struct coda_sb_info |
| { |
| struct venus_comm * sbi_vcomm; |
| struct super_block *sbi_sb; |
| struct list_head sbi_cihead; |
| }; |
| |
| /* communication pending/processing queues */ |
| struct venus_comm { |
| u_long vc_seq; |
| wait_queue_head_t vc_waitq; /* Venus wait queue */ |
| struct list_head vc_pending; |
| struct list_head vc_processing; |
| int vc_inuse; |
| struct super_block *vc_sb; |
| }; |
| |
| |
| static inline struct coda_sb_info *coda_sbp(struct super_block *sb) |
| { |
| return ((struct coda_sb_info *)((sb)->u.generic_sbp)); |
| } |
| |
| |
| /* upcalls */ |
| int venus_rootfid(struct super_block *sb, ViceFid *fidp); |
| int venus_getattr(struct super_block *sb, struct ViceFid *fid, |
| struct coda_vattr *attr); |
| int venus_setattr(struct super_block *, struct ViceFid *, |
| struct coda_vattr *); |
| int venus_lookup(struct super_block *sb, struct ViceFid *fid, |
| const char *name, int length, int *type, |
| struct ViceFid *resfid); |
| int venus_store(struct super_block *sb, struct ViceFid *fid, int flags, |
| struct coda_cred *); |
| int venus_release(struct super_block *sb, struct ViceFid *fid, int flags); |
| int venus_close(struct super_block *sb, struct ViceFid *fid, int flags, |
| struct coda_cred *); |
| int venus_open(struct super_block *sb, struct ViceFid *fid, |
| int flags, struct file **f); |
| int venus_mkdir(struct super_block *sb, struct ViceFid *dirfid, |
| const char *name, int length, |
| struct ViceFid *newfid, struct coda_vattr *attrs); |
| int venus_create(struct super_block *sb, struct ViceFid *dirfid, |
| const char *name, int length, int excl, int mode, int rdev, |
| struct ViceFid *newfid, struct coda_vattr *attrs) ; |
| int venus_rmdir(struct super_block *sb, struct ViceFid *dirfid, |
| const char *name, int length); |
| int venus_remove(struct super_block *sb, struct ViceFid *dirfid, |
| const char *name, int length); |
| int venus_readlink(struct super_block *sb, struct ViceFid *fid, |
| char *buffer, int *length); |
| int venus_rename(struct super_block *, struct ViceFid *new_fid, |
| struct ViceFid *old_fid, size_t old_length, |
| size_t new_length, const char *old_name, |
| const char *new_name); |
| int venus_link(struct super_block *sb, struct ViceFid *fid, |
| struct ViceFid *dirfid, const char *name, int len ); |
| int venus_symlink(struct super_block *sb, struct ViceFid *fid, |
| const char *name, int len, const char *symname, int symlen); |
| int venus_access(struct super_block *sb, struct ViceFid *fid, int mask); |
| int venus_pioctl(struct super_block *sb, struct ViceFid *fid, |
| unsigned int cmd, struct PioctlData *data); |
| int coda_downcall(int opcode, union outputArgs *out, struct super_block *sb); |
| int venus_fsync(struct super_block *sb, struct ViceFid *fid); |
| int venus_statfs(struct super_block *sb, struct statfs *sfs); |
| |
| |
| /* messages between coda filesystem in kernel and Venus */ |
| extern int coda_hard; |
| extern unsigned long coda_timeout; |
| struct upc_req { |
| struct list_head uc_chain; |
| caddr_t uc_data; |
| u_short uc_flags; |
| u_short uc_inSize; /* Size is at most 5000 bytes */ |
| u_short uc_outSize; |
| u_short uc_opcode; /* copied from data to save lookup */ |
| int uc_unique; |
| wait_queue_head_t uc_sleep; /* process' wait queue */ |
| unsigned long uc_posttime; |
| }; |
| |
| #define REQ_ASYNC 0x1 |
| #define REQ_READ 0x2 |
| #define REQ_WRITE 0x4 |
| #define REQ_ABORT 0x8 |
| |
| |
| /* |
| * Statistics |
| */ |
| struct coda_upcallstats { |
| int ncalls; /* client requests */ |
| int nbadcalls; /* upcall failures */ |
| int reqs[CODA_NCALLS]; /* count of each request */ |
| } ; |
| |
| extern struct coda_upcallstats coda_callstats; |
| extern struct venus_comm coda_comms[]; |
| |
| static inline void clstats(int opcode) |
| { |
| coda_callstats.ncalls++; |
| if ( (0 <= opcode) && (opcode <= CODA_NCALLS) ) |
| coda_callstats.reqs[opcode]++; |
| else |
| printk("clstats called with bad opcode %d\n", opcode); |
| } |
| |
| static inline void badclstats(void) |
| { |
| coda_callstats.nbadcalls++; |
| } |
| |
| #endif |