[deliverable/linux.git] / fs / orangefs / downcall.h

/*
 * (C) 2001 Clemson University and The University of Chicago
 *
 * See COPYING in top-level directory.
 */

/*
 *  Definitions of downcalls used in Linux kernel module.
 */

#ifndef __DOWNCALL_H
#define __DOWNCALL_H

/*
 * Sanitized the device-client core interaction
 * for clean 32-64 bit usage
 */
struct orangefs_io_response {
	__s64 amt_complete;
};

struct orangefs_lookup_response {
	struct orangefs_object_kref refn;
};

struct orangefs_create_response {
	struct orangefs_object_kref refn;
};

struct orangefs_symlink_response {
	struct orangefs_object_kref refn;
};

struct orangefs_getattr_response {
	struct ORANGEFS_sys_attr_s attributes;
	char link_target[ORANGEFS_NAME_MAX];
};

struct orangefs_mkdir_response {
	struct orangefs_object_kref refn;
};

/*
 * duplication of some system interface structures so that I don't have
 * to allocate extra memory
 */
struct orangefs_dirent {
	char *d_name;
	int d_length;
	struct orangefs_khandle khandle;
};

struct orangefs_statfs_response {
	__s64 block_size;
	__s64 blocks_total;
	__s64 blocks_avail;
	__s64 files_total;
	__s64 files_avail;
};

struct orangefs_fs_mount_response {
	__s32 fs_id;
	__s32 id;
	struct orangefs_khandle root_khandle;
};

/* the getxattr response is the attribute value */
struct orangefs_getxattr_response {
	__s32 val_sz;
	__s32 __pad1;
	char val[ORANGEFS_MAX_XATTR_VALUELEN];
};

/* the listxattr response is an array of attribute names */
struct orangefs_listxattr_response {
	__s32 returned_count;
	__s32 __pad1;
	__u64 token;
	char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN];
	__s32 keylen;
	__s32 __pad2;
	__s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN];
};

struct orangefs_param_response {
	union {
		__s64 value64;
		__s32 value32[2];
	} u;
};

#define PERF_COUNT_BUF_SIZE 4096
struct orangefs_perf_count_response {
	char buffer[PERF_COUNT_BUF_SIZE];
};

#define FS_KEY_BUF_SIZE 4096
struct orangefs_fs_key_response {
	__s32 fs_keylen;
	__s32 __pad1;
	char fs_key[FS_KEY_BUF_SIZE];
};

struct orangefs_downcall_s {
	__s32 type;
	__s32 status;
	/* currently trailer is used only by readdir */
	__s64 trailer_size;
	char *trailer_buf;

	union {
		struct orangefs_io_response io;
		struct orangefs_lookup_response lookup;
		struct orangefs_create_response create;
		struct orangefs_symlink_response sym;
		struct orangefs_getattr_response getattr;
		struct orangefs_mkdir_response mkdir;
		struct orangefs_statfs_response statfs;
		struct orangefs_fs_mount_response fs_mount;
		struct orangefs_getxattr_response getxattr;
		struct orangefs_listxattr_response listxattr;
		struct orangefs_param_response param;
		struct orangefs_perf_count_response perf_count;
		struct orangefs_fs_key_response fs_key;
	} resp;
};

struct orangefs_readdir_response_s {
	__u64 token;
	__u64 directory_version;
	__u32 __pad2;
	__u32 orangefs_dirent_outcount;
	struct orangefs_dirent *dirent_array;
};

#endif /* __DOWNCALL_H */
Commit	Line	Data
f7ab093f MM	1	/*
	2	* (C) 2001 Clemson University and The University of Chicago
	3	*
	4	* See COPYING in top-level directory.
	5	*/
	6
	7	/*
	8	* Definitions of downcalls used in Linux kernel module.
	9	*/
	10
	11	#ifndef __DOWNCALL_H
	12	#define __DOWNCALL_H
	13
	14	/*
	15	* Sanitized the device-client core interaction
	16	* for clean 32-64 bit usage
	17	*/
8bb8aefd	18	struct orangefs_io_response {
f7ab093f MM	19	__s64 amt_complete;
	20	};
	21
8bb8aefd YL	22	struct orangefs_lookup_response {
8bb8aefd YL	23	struct orangefs_object_kref refn;
f7ab093f MM	24	};
f7ab093f MM	25
8bb8aefd YL	26	struct orangefs_create_response {
8bb8aefd YL	27	struct orangefs_object_kref refn;
f7ab093f MM	28	};
f7ab093f MM	29
8bb8aefd YL	30	struct orangefs_symlink_response {
8bb8aefd YL	31	struct orangefs_object_kref refn;
f7ab093f MM	32	};
f7ab093f MM	33
8bb8aefd YL	34	struct orangefs_getattr_response {
8bb8aefd YL	35	struct ORANGEFS_sys_attr_s attributes;
47b4948f	36	char link_target[ORANGEFS_NAME_MAX];
f7ab093f MM	37	};
f7ab093f MM	38
8bb8aefd YL	39	struct orangefs_mkdir_response {
8bb8aefd YL	40	struct orangefs_object_kref refn;
f7ab093f MM	41	};
	42
	43	/*
	44	* duplication of some system interface structures so that I don't have
	45	* to allocate extra memory
	46	*/
8bb8aefd	47	struct orangefs_dirent {
f7ab093f MM	48	char *d_name;
f7ab093f MM	49	int d_length;
8bb8aefd	50	struct orangefs_khandle khandle;
f7ab093f MM	51	};
f7ab093f MM	52
8bb8aefd	53	struct orangefs_statfs_response {
f7ab093f MM	54	__s64 block_size;
	55	__s64 blocks_total;
	56	__s64 blocks_avail;
	57	__s64 files_total;
	58	__s64 files_avail;
	59	};
	60
8bb8aefd	61	struct orangefs_fs_mount_response {
f7ab093f MM	62	__s32 fs_id;
f7ab093f MM	63	__s32 id;
8bb8aefd	64	struct orangefs_khandle root_khandle;
f7ab093f MM	65	};
	66
	67	/* the getxattr response is the attribute value */
8bb8aefd	68	struct orangefs_getxattr_response {
f7ab093f MM	69	__s32 val_sz;
f7ab093f MM	70	__s32 __pad1;
8bb8aefd	71	char val[ORANGEFS_MAX_XATTR_VALUELEN];
f7ab093f MM	72	};
	73
	74	/* the listxattr response is an array of attribute names */
8bb8aefd	75	struct orangefs_listxattr_response {
f7ab093f MM	76	__s32 returned_count;
	77	__s32 __pad1;
	78	__u64 token;
8bb8aefd	79	char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN];
f7ab093f MM	80	__s32 keylen;
f7ab093f MM	81	__s32 __pad2;
8bb8aefd	82	__s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN];
f7ab093f MM	83	};
f7ab093f MM	84
8bb8aefd	85	struct orangefs_param_response {
680908e5 MB	86	union {
	87	__s64 value64;
	88	__s32 value32[2];
	89	} u;
f7ab093f MM	90	};
	91
	92	#define PERF_COUNT_BUF_SIZE 4096
8bb8aefd	93	struct orangefs_perf_count_response {
f7ab093f MM	94	char buffer[PERF_COUNT_BUF_SIZE];
	95	};
	96
	97	#define FS_KEY_BUF_SIZE 4096
8bb8aefd	98	struct orangefs_fs_key_response {
f7ab093f MM	99	__s32 fs_keylen;
	100	__s32 __pad1;
	101	char fs_key[FS_KEY_BUF_SIZE];
	102	};
	103
8bb8aefd	104	struct orangefs_downcall_s {
f7ab093f MM	105	__s32 type;
	106	__s32 status;
	107	/* currently trailer is used only by readdir */
	108	__s64 trailer_size;
54804949	109	char *trailer_buf;
f7ab093f MM	110
f7ab093f MM	111	union {
8bb8aefd YL	112	struct orangefs_io_response io;
	113	struct orangefs_lookup_response lookup;
	114	struct orangefs_create_response create;
	115	struct orangefs_symlink_response sym;
	116	struct orangefs_getattr_response getattr;
	117	struct orangefs_mkdir_response mkdir;
	118	struct orangefs_statfs_response statfs;
	119	struct orangefs_fs_mount_response fs_mount;
	120	struct orangefs_getxattr_response getxattr;
	121	struct orangefs_listxattr_response listxattr;
	122	struct orangefs_param_response param;
	123	struct orangefs_perf_count_response perf_count;
	124	struct orangefs_fs_key_response fs_key;
f7ab093f MM	125	} resp;
	126	};
	127
8bb8aefd	128	struct orangefs_readdir_response_s {
f7ab093f MM	129	__u64 token;
	130	__u64 directory_version;
	131	__u32 __pad2;
8bb8aefd YL	132	__u32 orangefs_dirent_outcount;
8bb8aefd YL	133	struct orangefs_dirent *dirent_array;
f7ab093f MM	134	};
	135
	136	#endif /* __DOWNCALL_H */