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1 | /*****************************************************************************\ |
2 | * Copyright (C) 2007-2010 Lawrence Livermore National Security, LLC. | |
3 | * Copyright (C) 2007 The Regents of the University of California. | |
4 | * Produced at Lawrence Livermore National Laboratory (cf, DISCLAIMER). | |
5 | * Written by Brian Behlendorf <behlendorf1@llnl.gov>. | |
6 | * UCRL-CODE-235197 | |
7 | * | |
8 | * This file is part of the SPL, Solaris Porting Layer. | |
9 | * For details, see <http://zfsonlinux.org/>. | |
10 | * | |
11 | * The SPL is free software; you can redistribute it and/or modify it | |
12 | * under the terms of the GNU General Public License as published by the | |
13 | * Free Software Foundation; either version 2 of the License, or (at your | |
14 | * option) any later version. | |
15 | * | |
16 | * The SPL is distributed in the hope that it will be useful, but WITHOUT | |
17 | * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or | |
18 | * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License | |
19 | * for more details. | |
20 | * | |
21 | * You should have received a copy of the GNU General Public License along | |
22 | * with the SPL. If not, see <http://www.gnu.org/licenses/>. | |
23 | \*****************************************************************************/ | |
24 | ||
25 | #ifndef _SPLAT_CTL_H | |
26 | #define _SPLAT_CTL_H | |
27 | ||
28 | #include <linux/types.h> | |
29 | ||
30 | /* | |
31 | * Contains shared definitions for both user space and kernel space. To | |
32 | * ensure 32-bit/64-bit interoperability over ioctl()'s only types with | |
33 | * fixed sizes can be used. | |
34 | */ | |
35 | #define SPLAT_NAME "splatctl" | |
36 | #define SPLAT_DEV "/dev/splatctl" | |
37 | ||
38 | #define SPLAT_NAME_SIZE 20 | |
39 | #define SPLAT_DESC_SIZE 60 | |
40 | ||
41 | typedef struct splat_user { | |
42 | char name[SPLAT_NAME_SIZE]; /* Short name */ | |
43 | char desc[SPLAT_DESC_SIZE]; /* Short description */ | |
44 | __u32 id; /* Unique numeric id */ | |
45 | } splat_user_t; | |
46 | ||
47 | #define SPLAT_CFG_MAGIC 0x15263748U | |
48 | typedef struct splat_cfg { | |
49 | __u32 cfg_magic; /* Unique magic */ | |
50 | __u32 cfg_cmd; /* Configure command */ | |
51 | __s32 cfg_arg1; /* Configure command arg 1 */ | |
52 | __s32 cfg_rc1; /* Configure response 1 */ | |
53 | union { | |
54 | struct { | |
55 | __u32 size; | |
56 | splat_user_t descs[0]; | |
57 | } splat_subsystems; | |
58 | struct { | |
59 | __u32 size; | |
60 | splat_user_t descs[0]; | |
61 | } splat_tests; | |
62 | } cfg_data; | |
63 | } splat_cfg_t; | |
64 | ||
65 | #define SPLAT_CMD_MAGIC 0x9daebfc0U | |
66 | typedef struct splat_cmd { | |
67 | __u32 cmd_magic; /* Unique magic */ | |
68 | __u32 cmd_subsystem; /* Target subsystem */ | |
69 | __u32 cmd_test; /* Subsystem test */ | |
70 | __u32 cmd_data_size; /* Opaque data size */ | |
71 | char cmd_data_str[0]; /* Opaque data region */ | |
72 | } splat_cmd_t; | |
73 | ||
74 | /* Valid ioctls */ | |
75 | #define SPLAT_CFG _IOWR('f', 101, splat_cfg_t) | |
76 | #define SPLAT_CMD _IOWR('f', 102, splat_cmd_t) | |
77 | ||
78 | /* Valid configuration commands */ | |
79 | #define SPLAT_CFG_BUFFER_CLEAR 0x001 /* Clear text buffer */ | |
80 | #define SPLAT_CFG_BUFFER_SIZE 0x002 /* Resize text buffer */ | |
81 | #define SPLAT_CFG_SUBSYSTEM_COUNT 0x101 /* Number of subsystem */ | |
82 | #define SPLAT_CFG_SUBSYSTEM_LIST 0x102 /* List of N subsystems */ | |
83 | #define SPLAT_CFG_TEST_COUNT 0x201 /* Number of tests */ | |
84 | #define SPLAT_CFG_TEST_LIST 0x202 /* List of N tests */ | |
85 | ||
86 | /* | |
87 | * Valid subsystem and test commands are defined in each subsystem as | |
88 | * SPLAT_SUBSYSTEM_*. We do need to be careful to avoid collisions, the | |
89 | * currently defined subsystems are as follows: | |
90 | */ | |
91 | #define SPLAT_SUBSYSTEM_KMEM 0x0100 | |
92 | #define SPLAT_SUBSYSTEM_TASKQ 0x0200 | |
93 | #define SPLAT_SUBSYSTEM_KRNG 0x0300 | |
94 | #define SPLAT_SUBSYSTEM_MUTEX 0x0400 | |
95 | #define SPLAT_SUBSYSTEM_CONDVAR 0x0500 | |
96 | #define SPLAT_SUBSYSTEM_THREAD 0x0600 | |
97 | #define SPLAT_SUBSYSTEM_RWLOCK 0x0700 | |
98 | #define SPLAT_SUBSYSTEM_TIME 0x0800 | |
99 | #define SPLAT_SUBSYSTEM_VNODE 0x0900 | |
100 | #define SPLAT_SUBSYSTEM_KOBJ 0x0a00 | |
101 | #define SPLAT_SUBSYSTEM_ATOMIC 0x0b00 | |
102 | #define SPLAT_SUBSYSTEM_LIST 0x0c00 | |
103 | #define SPLAT_SUBSYSTEM_GENERIC 0x0d00 | |
104 | #define SPLAT_SUBSYSTEM_CRED 0x0e00 | |
105 | #define SPLAT_SUBSYSTEM_ZLIB 0x0f00 | |
106 | #define SPLAT_SUBSYSTEM_LINUX 0x1000 | |
107 | #define SPLAT_SUBSYSTEM_UNKNOWN 0xff00 | |
108 | ||
109 | #endif /* _SPLAT_CTL_H */ |