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gerrit-public.fairphone.software / kernel / msm-4.9 / f7ab093f74bf638ed98fd1115f3efa17e308bb7f / . / fs / orangefs / downcall.h
blob: a79129f875f340c1567b55f0d3118973ccfb1f4b [file] [log] [blame]
Mike Marshallf7ab0932015-07-17 10:38:11 -0400[diff] [blame^]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 */
18struct pvfs2_io_response {
19 __s64 amt_complete;
20};
21
22struct pvfs2_iox_response {
23 __s64 amt_complete;
24};
25
26struct pvfs2_lookup_response {
27 struct pvfs2_object_kref refn;
28};
29
30struct pvfs2_create_response {
31 struct pvfs2_object_kref refn;
32};
33
34struct pvfs2_symlink_response {
35 struct pvfs2_object_kref refn;
36};
37
38struct pvfs2_getattr_response {
39 struct PVFS_sys_attr_s attributes;
40 char link_target[PVFS2_NAME_LEN];
41};
42
43struct pvfs2_mkdir_response {
44 struct pvfs2_object_kref refn;
45};
46
47/*
48 * duplication of some system interface structures so that I don't have
49 * to allocate extra memory
50 */
51struct pvfs2_dirent {
52 char *d_name;
53 int d_length;
54 struct pvfs2_khandle khandle;
55};
56
57struct pvfs2_statfs_response {
58 __s64 block_size;
59 __s64 blocks_total;
60 __s64 blocks_avail;
61 __s64 files_total;
62 __s64 files_avail;
63};
64
65struct pvfs2_fs_mount_response {
66 __s32 fs_id;
67 __s32 id;
68 struct pvfs2_khandle root_khandle;
69};
70
71/* the getxattr response is the attribute value */
72struct pvfs2_getxattr_response {
73 __s32 val_sz;
74 __s32 __pad1;
75 char val[PVFS_MAX_XATTR_VALUELEN];
76};
77
78/* the listxattr response is an array of attribute names */
79struct pvfs2_listxattr_response {
80 __s32 returned_count;
81 __s32 __pad1;
82 __u64 token;
83 char key[PVFS_MAX_XATTR_LISTLEN * PVFS_MAX_XATTR_NAMELEN];
84 __s32 keylen;
85 __s32 __pad2;
86 __s32 lengths[PVFS_MAX_XATTR_LISTLEN];
87};
88
89struct pvfs2_param_response {
90 __s64 value;
91};
92
93#define PERF_COUNT_BUF_SIZE 4096
94struct pvfs2_perf_count_response {
95 char buffer[PERF_COUNT_BUF_SIZE];
96};
97
98#define FS_KEY_BUF_SIZE 4096
99struct pvfs2_fs_key_response {
100 __s32 fs_keylen;
101 __s32 __pad1;
102 char fs_key[FS_KEY_BUF_SIZE];
103};
104
105struct pvfs2_downcall_s {
106 __s32 type;
107 __s32 status;
108 /* currently trailer is used only by readdir */
109 __s64 trailer_size;
110 char * trailer_buf;
111
112 union {
113 struct pvfs2_io_response io;
114 struct pvfs2_iox_response iox;
115 struct pvfs2_lookup_response lookup;
116 struct pvfs2_create_response create;
117 struct pvfs2_symlink_response sym;
118 struct pvfs2_getattr_response getattr;
119 struct pvfs2_mkdir_response mkdir;
120 struct pvfs2_statfs_response statfs;
121 struct pvfs2_fs_mount_response fs_mount;
122 struct pvfs2_getxattr_response getxattr;
123 struct pvfs2_listxattr_response listxattr;
124 struct pvfs2_param_response param;
125 struct pvfs2_perf_count_response perf_count;
126 struct pvfs2_fs_key_response fs_key;
127 } resp;
128};
129
130struct pvfs2_readdir_response_s {
131 __u64 token;
132 __u64 directory_version;
133 __u32 __pad2;
134 __u32 pvfs_dirent_outcount;
135 struct pvfs2_dirent *dirent_array;
136};
137
138#endif /* __DOWNCALL_H */