Import of Linux 2.2.12 subset (ipv4 stack and related)

1 files changed, 131 insertions, 0 deletions

diff --git a/pfinet/linux-src/include/linux/coda_psdev.h b/pfinet/linux-src/include/linux/coda_psdev.h
new file mode 100644
index 00000000..8c564f9a
--- /dev/null
+++ b/pfinet/linux-src/include/linux/coda_psdev.h
@@ -0,0 +1,131 @@
+#ifndef __CODA_PSDEV_H
+#define __CODA_PSDEV_H
+
+#define CODA_PSDEV_MAJOR 67
+#define MAX_CODADEVS  5	   /* how many do we allow */
+
+extern struct venus_comm coda_upc_comm;
+extern struct coda_sb_info coda_super_info;
+#define CODA_SUPER_MAGIC	0x73757245
+
+struct coda_sb_info
+{
+	struct inode *      sbi_psdev;     /* /dev/cfs? Venus/kernel device */
+	struct inode *      sbi_ctlcp;     /* control magic file */
+	int                 sbi_refct;
+	struct venus_comm *      sbi_vcomm;
+	struct inode *      sbi_root;
+	struct super_block *sbi_sb;
+	struct list_head    sbi_cchead;
+	struct list_head    sbi_volroothead;
+};
+
+/* communication pending/processing queues */
+struct venus_comm {
+	u_long		    vc_seq;
+	struct wait_queue  *vc_waitq; /* Venus wait queue */
+	struct list_head    vc_pending;
+	struct list_head    vc_processing;
+	int                 vc_inuse;
+	pid_t               vc_pid;   /* Venus pid */
+};
+
+
+static inline struct coda_sb_info *coda_sbp(struct super_block *sb)
+{
+    return ((struct coda_sb_info *)((sb)->u.generic_sbp));
+}
+
+
+
+extern void coda_psdev_detach(int unit);
+extern int  init_coda_psdev(void);
+
+
+/* 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_release(struct super_block *sb, struct ViceFid *fid, int flags,
+		  struct coda_cred *);
+int venus_open(struct super_block *sb, struct ViceFid *fid,
+		  int flags, ino_t *ino, dev_t *dev);
+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;
+	struct wait_queue  *uc_sleep;   /* process' wait queue */
+	unsigned long       uc_posttime;
+};
+
+#define REQ_ASYNC  0x1
+#define REQ_READ   0x2
+#define REQ_WRITE  0x4
+
+
+/*
+ * 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;
+
+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