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Commit | Line | Data |
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14c5326c | 1 | #include <sys/sysmacros.h> |
af828292 BB |
2 | #include <sys/vmsystm.h> |
3 | #include <sys/vnode.h> | |
c19c06f3 | 4 | #include <sys/kmem.h> |
8d0f1ee9 | 5 | #include <sys/debug.h> |
57d1b188 | 6 | #include <sys/proc.h> |
f23e92fa | 7 | #include <linux/kmod.h> |
70eadc19 | 8 | #include "config.h" |
f1b59d26 | 9 | |
57d1b188 BB |
10 | #ifdef DEBUG_SUBSYSTEM |
11 | #undef DEBUG_SUBSYSTEM | |
12 | #endif | |
8d0f1ee9 | 13 | |
57d1b188 | 14 | #define DEBUG_SUBSYSTEM S_GENERIC |
f23e92fa | 15 | |
3561541c BB |
16 | char spl_version[16] = "SPL v" VERSION; |
17 | ||
937879f1 | 18 | long spl_hostid = 0; |
f23e92fa | 19 | EXPORT_SYMBOL(spl_hostid); |
8d0f1ee9 | 20 | |
937879f1 BB |
21 | char hw_serial[11] = "<none>"; |
22 | EXPORT_SYMBOL(hw_serial); | |
f1b59d26 BB |
23 | |
24 | int p0 = 0; | |
25 | EXPORT_SYMBOL(p0); | |
70eadc19 | 26 | |
af828292 BB |
27 | vmem_t *zio_alloc_arena = NULL; |
28 | EXPORT_SYMBOL(zio_alloc_arena); | |
29 | ||
77b1fe8f BB |
30 | int |
31 | highbit(unsigned long i) | |
32 | { | |
33 | register int h = 1; | |
57d1b188 | 34 | ENTRY; |
77b1fe8f BB |
35 | |
36 | if (i == 0) | |
57d1b188 | 37 | RETURN(0); |
77b1fe8f BB |
38 | #if BITS_PER_LONG == 64 |
39 | if (i & 0xffffffff00000000ul) { | |
40 | h += 32; i >>= 32; | |
41 | } | |
42 | #endif | |
43 | if (i & 0xffff0000) { | |
44 | h += 16; i >>= 16; | |
45 | } | |
46 | if (i & 0xff00) { | |
47 | h += 8; i >>= 8; | |
48 | } | |
49 | if (i & 0xf0) { | |
50 | h += 4; i >>= 4; | |
51 | } | |
52 | if (i & 0xc) { | |
53 | h += 2; i >>= 2; | |
54 | } | |
55 | if (i & 0x2) { | |
56 | h += 1; | |
57 | } | |
57d1b188 | 58 | RETURN(h); |
77b1fe8f BB |
59 | } |
60 | EXPORT_SYMBOL(highbit); | |
61 | ||
2f5d55aa BB |
62 | int |
63 | ddi_strtoul(const char *str, char **nptr, int base, unsigned long *result) | |
64 | { | |
65 | char *end; | |
66 | return (*result = simple_strtoul(str, &end, base)); | |
67 | } | |
68 | EXPORT_SYMBOL(ddi_strtoul); | |
69 | ||
8d0f1ee9 | 70 | static int |
57d1b188 | 71 | set_hostid(void) |
8d0f1ee9 | 72 | { |
f23e92fa BB |
73 | char sh_path[] = "/bin/sh"; |
74 | char *argv[] = { sh_path, | |
75 | "-c", | |
57d1b188 | 76 | "/usr/bin/hostid >/proc/sys/spl/hostid", |
f23e92fa BB |
77 | NULL }; |
78 | char *envp[] = { "HOME=/", | |
79 | "TERM=linux", | |
80 | "PATH=/sbin:/usr/sbin:/bin:/usr/bin", | |
81 | NULL }; | |
8d0f1ee9 | 82 | |
57d1b188 | 83 | /* Doing address resolution in the kernel is tricky and just |
937879f1 | 84 | * not a good idea in general. So to set the proper 'hw_serial' |
57d1b188 BB |
85 | * use the usermodehelper support to ask '/bin/sh' to run |
86 | * '/usr/bin/hostid' and redirect the result to /proc/sys/spl/hostid | |
87 | * for us to use. It's a horific solution but it will do for now. | |
88 | */ | |
89 | return call_usermodehelper(sh_path, argv, envp, 1); | |
90 | } | |
8d0f1ee9 | 91 | |
57d1b188 BB |
92 | static int __init spl_init(void) |
93 | { | |
94 | int rc = 0; | |
f23e92fa | 95 | |
57d1b188 | 96 | if ((rc = debug_init())) |
18c9eadf | 97 | return rc; |
f23e92fa | 98 | |
8d0f1ee9 | 99 | if ((rc = kmem_init())) |
57d1b188 | 100 | GOTO(out , rc); |
8d0f1ee9 BB |
101 | |
102 | if ((rc = vn_init())) | |
57d1b188 | 103 | GOTO(out2, rc); |
8d0f1ee9 | 104 | |
57d1b188 BB |
105 | if ((rc = proc_init())) |
106 | GOTO(out3, rc); | |
af828292 | 107 | |
57d1b188 BB |
108 | if ((rc = set_hostid())) |
109 | GOTO(out4, rc = -EADDRNOTAVAIL); | |
f23e92fa | 110 | |
937879f1 | 111 | printk("SPL: Loaded Solaris Porting Layer v%s\n", VERSION); |
57d1b188 | 112 | RETURN(rc); |
f23e92fa | 113 | out4: |
57d1b188 | 114 | proc_fini(); |
f23e92fa | 115 | out3: |
57d1b188 | 116 | vn_fini(); |
8d0f1ee9 | 117 | out2: |
57d1b188 | 118 | kmem_fini(); |
8d0f1ee9 | 119 | out: |
57d1b188 | 120 | debug_fini(); |
8d0f1ee9 | 121 | |
57d1b188 BB |
122 | printk("SPL: Failed to Load Solaris Porting Layer v%s, " |
123 | "rc = %d\n", VERSION, rc); | |
18c9eadf | 124 | return rc; |
70eadc19 BB |
125 | } |
126 | ||
127 | static void spl_fini(void) | |
128 | { | |
57d1b188 BB |
129 | ENTRY; |
130 | ||
937879f1 | 131 | printk("SPL: Unloaded Solaris Porting Layer v%s\n", VERSION); |
57d1b188 | 132 | proc_fini(); |
af828292 | 133 | vn_fini(); |
e4f1d29f | 134 | kmem_fini(); |
57d1b188 | 135 | debug_fini(); |
70eadc19 BB |
136 | } |
137 | ||
138 | module_init(spl_init); | |
139 | module_exit(spl_fini); | |
140 | ||
141 | MODULE_AUTHOR("Lawrence Livermore National Labs"); | |
142 | MODULE_DESCRIPTION("Solaris Porting Layer"); | |
143 | MODULE_LICENSE("GPL"); |