[mirror_ubuntu-artful-kernel.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;
};

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];
};

/* 2.9.6 */
struct orangefs_features_response {
	__u64 features;
};

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;
		struct orangefs_features_response features;
	} resp;
};

/*
 * The readdir response comes in the trailer.  It is followed by the
 * directory entries as described in dir.c.
 */

struct orangefs_readdir_response_s {
	__u64 token;
	__u64 directory_version;
	__u32 __pad2;
	__u32 orangefs_dirent_outcount;
};

#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	};
f7ab093f MM	42
8bb8aefd	43	struct orangefs_statfs_response {
f7ab093f MM	44	__s64 block_size;
	45	__s64 blocks_total;
	46	__s64 blocks_avail;
	47	__s64 files_total;
	48	__s64 files_avail;
	49	};
	50
8bb8aefd	51	struct orangefs_fs_mount_response {
f7ab093f MM	52	__s32 fs_id;
f7ab093f MM	53	__s32 id;
8bb8aefd	54	struct orangefs_khandle root_khandle;
f7ab093f MM	55	};
	56
	57	/* the getxattr response is the attribute value */
8bb8aefd	58	struct orangefs_getxattr_response {
f7ab093f MM	59	__s32 val_sz;
f7ab093f MM	60	__s32 __pad1;
8bb8aefd	61	char val[ORANGEFS_MAX_XATTR_VALUELEN];
f7ab093f MM	62	};
	63
	64	/* the listxattr response is an array of attribute names */
8bb8aefd	65	struct orangefs_listxattr_response {
f7ab093f MM	66	__s32 returned_count;
	67	__s32 __pad1;
	68	__u64 token;
8bb8aefd	69	char key[ORANGEFS_MAX_XATTR_LISTLEN * ORANGEFS_MAX_XATTR_NAMELEN];
f7ab093f MM	70	__s32 keylen;
f7ab093f MM	71	__s32 __pad2;
8bb8aefd	72	__s32 lengths[ORANGEFS_MAX_XATTR_LISTLEN];
f7ab093f MM	73	};
f7ab093f MM	74
8bb8aefd	75	struct orangefs_param_response {
680908e5 MB	76	union {
	77	__s64 value64;
	78	__s32 value32[2];
	79	} u;
f7ab093f MM	80	};
	81
	82	#define PERF_COUNT_BUF_SIZE 4096
8bb8aefd	83	struct orangefs_perf_count_response {
f7ab093f MM	84	char buffer[PERF_COUNT_BUF_SIZE];
	85	};
	86
	87	#define FS_KEY_BUF_SIZE 4096
8bb8aefd	88	struct orangefs_fs_key_response {
f7ab093f MM	89	__s32 fs_keylen;
	90	__s32 __pad1;
	91	char fs_key[FS_KEY_BUF_SIZE];
	92	};
	93
482664dd MB	94	/* 2.9.6 */
	95	struct orangefs_features_response {
	96	__u64 features;
	97	};
	98
8bb8aefd	99	struct orangefs_downcall_s {
f7ab093f MM	100	__s32 type;
	101	__s32 status;
	102	/* currently trailer is used only by readdir */
	103	__s64 trailer_size;
54804949	104	char *trailer_buf;
f7ab093f MM	105
f7ab093f MM	106	union {
8bb8aefd YL	107	struct orangefs_io_response io;
	108	struct orangefs_lookup_response lookup;
	109	struct orangefs_create_response create;
	110	struct orangefs_symlink_response sym;
	111	struct orangefs_getattr_response getattr;
	112	struct orangefs_mkdir_response mkdir;
	113	struct orangefs_statfs_response statfs;
	114	struct orangefs_fs_mount_response fs_mount;
	115	struct orangefs_getxattr_response getxattr;
	116	struct orangefs_listxattr_response listxattr;
	117	struct orangefs_param_response param;
	118	struct orangefs_perf_count_response perf_count;
	119	struct orangefs_fs_key_response fs_key;
482664dd	120	struct orangefs_features_response features;
f7ab093f MM	121	} resp;
	122	};
	123
382f4581 MB	124	/*
	125	* The readdir response comes in the trailer. It is followed by the
	126	* directory entries as described in dir.c.
	127	*/
	128
8bb8aefd	129	struct orangefs_readdir_response_s {
f7ab093f MM	130	__u64 token;
	131	__u64 directory_version;
	132	__u32 __pad2;
8bb8aefd	133	__u32 orangefs_dirent_outcount;
f7ab093f MM	134	};
	135
	136	#endif /* __DOWNCALL_H */