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a37e7145 | 1 | /* |
832b75ed | 2 | * os_linux.c |
a37e7145 | 3 | * |
832b75ed GG |
4 | * Home page of code is: http://smartmontools.sourceforge.net |
5 | * | |
a37e7145 GG |
6 | * Copyright (C) 2003-7 Bruce Allen <smartmontools-support@lists.sourceforge.net> |
7 | * Copyright (C) 2003-7 Doug Gilbert <dougg@torque.net> | |
832b75ed GG |
8 | * |
9 | * Parts of this file are derived from code that was | |
10 | * | |
11 | * Written By: Adam Radford <linux@3ware.com> | |
12 | * Modifications By: Joel Jacobson <linux@3ware.com> | |
13 | * Arnaldo Carvalho de Melo <acme@conectiva.com.br> | |
14 | * Brad Strand <linux@3ware.com> | |
15 | * | |
16 | * Copyright (C) 1999-2003 3ware Inc. | |
17 | * | |
18 | * Kernel compatablity By: Andre Hedrick <andre@suse.com> | |
19 | * Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com> | |
20 | * | |
21 | * Other ars of this file are derived from code that was | |
a37e7145 | 22 | * |
832b75ed GG |
23 | * Copyright (C) 1999-2000 Michael Cornwell <cornwell@acm.org> |
24 | * Copyright (C) 2000 Andre Hedrick <andre@linux-ide.org> | |
25 | * | |
26 | * This program is free software; you can redistribute it and/or modify | |
27 | * it under the terms of the GNU General Public License as published by | |
28 | * the Free Software Foundation; either version 2, or (at your option) | |
29 | * any later version. | |
30 | * | |
31 | * You should have received a copy of the GNU General Public License | |
32 | * (for example COPYING); if not, write to the Free | |
33 | * Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
34 | * | |
35 | * This code was originally developed as a Senior Thesis by Michael Cornwell | |
36 | * at the Concurrent Systems Laboratory (now part of the Storage Systems | |
37 | * Research Center), Jack Baskin School of Engineering, University of | |
38 | * California, Santa Cruz. http://ssrc.soe.ucsc.edu/ | |
a37e7145 | 39 | * |
832b75ed GG |
40 | */ |
41 | ||
42 | // This file contains the linux-specific IOCTL parts of | |
43 | // smartmontools. It includes one interface routine for ATA devices, | |
44 | // one for SCSI devices, and one for ATA devices behind escalade | |
45 | // controllers. | |
46 | ||
a37e7145 GG |
47 | #include "config.h" |
48 | ||
832b75ed GG |
49 | #include <errno.h> |
50 | #include <fcntl.h> | |
51 | #include <glob.h> | |
ba59cff1 | 52 | |
832b75ed GG |
53 | #include <scsi/scsi_ioctl.h> |
54 | #include <scsi/sg.h> | |
55 | #include <stdlib.h> | |
56 | #include <string.h> | |
57 | #include <sys/ioctl.h> | |
58 | #include <sys/stat.h> | |
59 | #include <unistd.h> | |
60 | #ifndef makedev // old versions of types.h do not include sysmacros.h | |
61 | #include <sys/sysmacros.h> | |
62 | #endif | |
63 | ||
832b75ed GG |
64 | #include "int64.h" |
65 | #include "atacmds.h" | |
4d59bff9 GG |
66 | #include "extern.h" |
67 | extern smartmonctrl * con; | |
832b75ed GG |
68 | #include "os_linux.h" |
69 | #include "scsicmds.h" | |
70 | #include "utility.h" | |
ba59cff1 | 71 | #include "extern.h" |
a37e7145 | 72 | #include "cciss.h" |
832b75ed GG |
73 | |
74 | #ifndef ENOTSUP | |
75 | #define ENOTSUP ENOSYS | |
76 | #endif | |
77 | typedef unsigned long long u8; | |
78 | ||
ba59cff1 | 79 | |
832b75ed GG |
80 | #define ARGUSED(x) ((void)(x)) |
81 | ||
1953ff6d | 82 | static const char *filenameandversion="$Id: os_linux.cpp,v 1.98 2008/02/17 00:30:47 dpgilbert Exp $"; |
832b75ed | 83 | |
1953ff6d | 84 | const char *os_XXXX_c_cvsid="$Id: os_linux.cpp,v 1.98 2008/02/17 00:30:47 dpgilbert Exp $" \ |
832b75ed GG |
85 | ATACMDS_H_CVSID CONFIG_H_CVSID INT64_H_CVSID OS_LINUX_H_CVSID SCSICMDS_H_CVSID UTILITY_H_CVSID; |
86 | ||
87 | // to hold onto exit code for atexit routine | |
88 | extern int exitstatus; | |
89 | ||
90 | // global variable holding byte count of allocated memory | |
91 | extern long long bytes; | |
92 | ||
ba59cff1 GG |
93 | /* for passing global control variables */ |
94 | extern smartmonctrl *con; | |
95 | ||
832b75ed GG |
96 | /* This function will setup and fix device nodes for a 3ware controller. */ |
97 | #define MAJOR_STRING_LENGTH 3 | |
98 | #define DEVICE_STRING_LENGTH 32 | |
99 | #define NODE_STRING_LENGTH 16 | |
100 | int setup_3ware_nodes(char *nodename, char *driver_name) { | |
101 | int tw_major = 0; | |
102 | int index = 0; | |
103 | char majorstring[MAJOR_STRING_LENGTH+1]; | |
104 | char device_name[DEVICE_STRING_LENGTH+1]; | |
105 | char nodestring[NODE_STRING_LENGTH]; | |
106 | struct stat stat_buf; | |
107 | FILE *file; | |
a37e7145 | 108 | |
832b75ed GG |
109 | /* First try to open up /proc/devices */ |
110 | if (!(file = fopen("/proc/devices", "r"))) { | |
111 | pout("Error opening /proc/devices to check/create 3ware device nodes\n"); | |
112 | syserror("fopen"); | |
113 | return 0; // don't fail here: user might not have /proc ! | |
114 | } | |
a37e7145 | 115 | |
832b75ed GG |
116 | /* Attempt to get device major number */ |
117 | while (EOF != fscanf(file, "%3s %32s", majorstring, device_name)) { | |
118 | majorstring[MAJOR_STRING_LENGTH]='\0'; | |
119 | device_name[DEVICE_STRING_LENGTH]='\0'; | |
120 | if (!strncmp(device_name, nodename, DEVICE_STRING_LENGTH)) { | |
121 | tw_major = atoi(majorstring); | |
122 | break; | |
123 | } | |
124 | } | |
125 | fclose(file); | |
a37e7145 | 126 | |
832b75ed GG |
127 | /* See if we found a major device number */ |
128 | if (!tw_major) { | |
129 | pout("No major number for /dev/%s listed in /proc/devices. Is the %s driver loaded?\n", nodename, driver_name); | |
130 | return 2; | |
131 | } | |
a37e7145 | 132 | |
832b75ed GG |
133 | /* Now check if nodes are correct */ |
134 | for (index=0; index<16; index++) { | |
135 | sprintf(nodestring, "/dev/%s%d", nodename, index); | |
a37e7145 | 136 | |
832b75ed GG |
137 | /* Try to stat the node */ |
138 | if ((stat(nodestring, &stat_buf))) { | |
139 | /* Create a new node if it doesn't exist */ | |
140 | if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) { | |
4d59bff9 GG |
141 | pout("problem creating 3ware device nodes %s", nodestring); |
142 | syserror("mknod"); | |
143 | return 3; | |
832b75ed GG |
144 | } |
145 | } | |
a37e7145 | 146 | |
832b75ed GG |
147 | /* See if nodes major and minor numbers are correct */ |
148 | if ((tw_major != (int)(major(stat_buf.st_rdev))) || | |
4d59bff9 GG |
149 | (index != (int)(minor(stat_buf.st_rdev))) || |
150 | (!S_ISCHR(stat_buf.st_mode))) { | |
a37e7145 | 151 | |
832b75ed GG |
152 | /* Delete the old node */ |
153 | if (unlink(nodestring)) { | |
4d59bff9 GG |
154 | pout("problem unlinking stale 3ware device node %s", nodestring); |
155 | syserror("unlink"); | |
156 | return 4; | |
832b75ed | 157 | } |
a37e7145 | 158 | |
832b75ed GG |
159 | /* Make a new node */ |
160 | if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) { | |
4d59bff9 GG |
161 | pout("problem creating 3ware device nodes %s", nodestring); |
162 | syserror("mknod"); | |
163 | return 5; | |
832b75ed GG |
164 | } |
165 | } | |
166 | } | |
167 | return 0; | |
168 | } | |
169 | ||
1953ff6d GG |
170 | static char prev_scsi_dev[128]; |
171 | ||
832b75ed GG |
172 | // equivalent to open(path, flags) |
173 | int deviceopen(const char *pathname, char *type){ | |
1953ff6d GG |
174 | int fd; |
175 | ||
176 | if (0 == strcmp(type,"SCSI")) { | |
177 | strncpy(prev_scsi_dev, pathname, sizeof(prev_scsi_dev) - 1); | |
178 | fd = open(pathname, O_RDWR | O_NONBLOCK); | |
832b75ed GG |
179 | if (fd < 0 && errno == EROFS) |
180 | fd = open(pathname, O_RDONLY | O_NONBLOCK); | |
181 | return fd; | |
1953ff6d GG |
182 | } else if (0 == strcmp(type,"ATA")) { |
183 | // smartd re-opens SCSI devices with "type"==ATA for some reason. | |
184 | // If that was a SCSI generic device (e.g. /dev/sg0) then the | |
185 | // sg driver wants O_RDWR to allow through ATA PASS-THROUGH commands. | |
186 | // The purpose of the next code line is to limit the scope of | |
187 | // this change as a release is pending (and smartd needs a rewrite). | |
188 | if (0 == strncmp(pathname, prev_scsi_dev, sizeof(prev_scsi_dev))) | |
189 | return open(pathname, O_RDWR | O_NONBLOCK); | |
190 | else | |
191 | return open(pathname, O_RDONLY | O_NONBLOCK); | |
192 | } else if (0 == strcmp(type,"ATA_3WARE_9000")) { | |
832b75ed GG |
193 | // the device nodes for this controller are dynamically assigned, |
194 | // so we need to check that they exist with the correct major | |
195 | // numbers and if not, create them | |
196 | if (setup_3ware_nodes("twa", "3w-9xxx")) { | |
197 | if (!errno) | |
4d59bff9 | 198 | errno=ENXIO; |
832b75ed GG |
199 | return -1; |
200 | } | |
201 | return open(pathname, O_RDONLY | O_NONBLOCK); | |
202 | } | |
1953ff6d | 203 | else if (0 == strcmp(type,"ATA_3WARE_678K")) { |
832b75ed GG |
204 | // the device nodes for this controller are dynamically assigned, |
205 | // so we need to check that they exist with the correct major | |
206 | // numbers and if not, create them | |
207 | if (setup_3ware_nodes("twe", "3w-xxxx")) { | |
208 | if (!errno) | |
4d59bff9 | 209 | errno=ENXIO; |
832b75ed GG |
210 | return -1; |
211 | } | |
212 | return open(pathname, O_RDONLY | O_NONBLOCK); | |
213 | } | |
1953ff6d | 214 | else if(0 == strcmp(type, "CCISS")) { |
ba59cff1 GG |
215 | // the device is a cciss smart array device. |
216 | return open(pathname, O_RDWR | O_NONBLOCK); | |
217 | } | |
832b75ed GG |
218 | else |
219 | return -1; | |
ba59cff1 | 220 | |
832b75ed GG |
221 | } |
222 | ||
223 | // equivalent to close(file descriptor) | |
224 | int deviceclose(int fd){ | |
225 | return close(fd); | |
226 | } | |
227 | ||
228 | // print examples for smartctl | |
229 | void print_smartctl_examples(){ | |
230 | printf("=================================================== SMARTCTL EXAMPLES =====\n\n"); | |
231 | #ifdef HAVE_GETOPT_LONG | |
232 | printf( | |
233 | " smartctl --all /dev/hda (Prints all SMART information)\n\n" | |
234 | " smartctl --smart=on --offlineauto=on --saveauto=on /dev/hda\n" | |
235 | " (Enables SMART on first disk)\n\n" | |
236 | " smartctl --test=long /dev/hda (Executes extended disk self-test)\n\n" | |
237 | " smartctl --attributes --log=selftest --quietmode=errorsonly /dev/hda\n" | |
238 | " (Prints Self-Test & Attribute errors)\n" | |
239 | " smartctl --all --device=3ware,2 /dev/sda\n" | |
240 | " smartctl --all --device=3ware,2 /dev/twe0\n" | |
241 | " smartctl --all --device=3ware,2 /dev/twa0\n" | |
242 | " (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n" | |
4d59bff9 GG |
243 | " smartctl --all --device=hpt,1/1/3 /dev/sda\n" |
244 | " (Prints all SMART info for the SATA disk attached to the 3rd PMPort\n" | |
245 | " of the 1st channel on the 1st HighPoint RAID controller)\n" | |
832b75ed GG |
246 | ); |
247 | #else | |
248 | printf( | |
249 | " smartctl -a /dev/hda (Prints all SMART information)\n" | |
250 | " smartctl -s on -o on -S on /dev/hda (Enables SMART on first disk)\n" | |
251 | " smartctl -t long /dev/hda (Executes extended disk self-test)\n" | |
252 | " smartctl -A -l selftest -q errorsonly /dev/hda\n" | |
253 | " (Prints Self-Test & Attribute errors)\n" | |
254 | " smartctl -a -d 3ware,2 /dev/sda\n" | |
255 | " smartctl -a -d 3ware,2 /dev/twa0\n" | |
256 | " smartctl -a -d 3ware,2 /dev/twe0\n" | |
257 | " (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n" | |
4d59bff9 GG |
258 | " smartctl -a -d hpt,1/1/3 /dev/sda\n" |
259 | " (Prints all SMART info for the SATA disk attached to the 3rd PMPort\n" | |
260 | " of the 1st channel on the 1st HighPoint RAID controller)\n" | |
832b75ed GG |
261 | ); |
262 | #endif | |
263 | return; | |
264 | } | |
265 | ||
266 | ||
267 | // we are going to take advantage of the fact that Linux's devfs will only | |
268 | // have device entries for devices that exist. So if we get the equivalent of | |
269 | // ls /dev/hd[a-t], we have all the ATA devices on the system | |
270 | // | |
271 | // If any errors occur, leave errno set as it was returned by the | |
272 | // system call, and return <0. | |
273 | int get_dev_names(char*** names, const char* pattern, const char* name, int max) { | |
274 | int n = 0, retglob, i, lim; | |
275 | char** mp; | |
276 | glob_t globbuf; | |
a37e7145 | 277 | |
832b75ed GG |
278 | memset(&globbuf, 0, sizeof(globbuf)); |
279 | ||
280 | // in case of non-clean exit | |
281 | *names=NULL; | |
a37e7145 | 282 | |
832b75ed GG |
283 | // Use glob to look for any directory entries matching the pattern |
284 | if ((retglob=glob(pattern, GLOB_ERR, NULL, &globbuf))) { | |
a37e7145 | 285 | |
832b75ed GG |
286 | // glob failed: free memory and return |
287 | globfree(&globbuf); | |
a37e7145 | 288 | |
832b75ed GG |
289 | if (retglob==GLOB_NOMATCH){ |
290 | pout("glob(3) found no matches for pattern %s\n", pattern); | |
291 | return 0; | |
292 | } | |
a37e7145 | 293 | |
832b75ed GG |
294 | if (retglob==GLOB_NOSPACE) |
295 | pout("glob(3) ran out of memory matching pattern %s\n", pattern); | |
296 | #ifdef GLOB_ABORTED // missing in old versions of glob.h | |
297 | else if (retglob==GLOB_ABORTED) | |
298 | pout("glob(3) aborted matching pattern %s\n", pattern); | |
299 | #endif | |
300 | else | |
301 | pout("Unexplained error in glob(3) of pattern %s\n", pattern); | |
a37e7145 | 302 | |
832b75ed GG |
303 | return -1; |
304 | } | |
305 | ||
306 | // did we find too many paths? | |
307 | lim = ((int)globbuf.gl_pathc < max) ? (int)globbuf.gl_pathc : max; | |
308 | if (lim < (int)globbuf.gl_pathc) | |
a37e7145 | 309 | pout("glob(3) found %d > MAX=%d devices matching pattern %s: ignoring %d paths\n", |
832b75ed | 310 | (int)globbuf.gl_pathc, max, pattern, (int)(globbuf.gl_pathc-max)); |
a37e7145 | 311 | |
832b75ed GG |
312 | // allocate space for up to lim number of ATA devices |
313 | if (!(mp = (char **)calloc(lim, sizeof(char*)))){ | |
314 | pout("Out of memory constructing scan device list\n"); | |
315 | return -1; | |
316 | } | |
a37e7145 | 317 | |
832b75ed GG |
318 | // now step through the list returned by glob. If not a link, copy |
319 | // to list. If it is a link, evaluate it and see if the path ends | |
320 | // in "disc". | |
321 | for (i=0; i<lim; i++){ | |
322 | int retlink; | |
a37e7145 | 323 | |
832b75ed GG |
324 | // prepare a buffer for storing the link |
325 | char linkbuf[1024]; | |
a37e7145 | 326 | |
832b75ed GG |
327 | // see if path is a link |
328 | retlink=readlink(globbuf.gl_pathv[i], linkbuf, 1023); | |
a37e7145 | 329 | |
832b75ed GG |
330 | // if not a link (or a strange link), keep it |
331 | if (retlink<=0 || retlink>1023) | |
332 | mp[n++] = CustomStrDup(globbuf.gl_pathv[i], 1, __LINE__, filenameandversion); | |
333 | else { | |
334 | // or if it's a link that points to a disc, follow it | |
335 | char *p; | |
336 | linkbuf[retlink]='\0'; | |
337 | if ((p=strrchr(linkbuf,'/')) && !strcmp(p+1, "disc")) | |
338 | // This is the branch of the code that gets followed if we are | |
339 | // using devfs WITH traditional compatibility links. In this | |
340 | // case, we add the traditional device name to the list that | |
341 | // is returned. | |
342 | mp[n++] = CustomStrDup(globbuf.gl_pathv[i], 1, __LINE__, filenameandversion); | |
343 | else { | |
344 | // This is the branch of the code that gets followed if we are | |
345 | // using devfs WITHOUT traditional compatibility links. In | |
346 | // this case, we check that the link to the directory is of | |
347 | // the correct type, and then append "disc" to it. | |
348 | char tmpname[1024]={0}; | |
4d59bff9 | 349 | const char * type = (strcmp(name,"ATA") ? "scsi" : "ide"); |
832b75ed GG |
350 | if (strstr(linkbuf, type)){ |
351 | snprintf(tmpname, 1024, "%s/disc", globbuf.gl_pathv[i]); | |
352 | mp[n++] = CustomStrDup(tmpname, 1, __LINE__, filenameandversion); | |
353 | } | |
354 | } | |
355 | } | |
356 | } | |
a37e7145 | 357 | |
832b75ed GG |
358 | // free memory, track memory usage |
359 | globfree(&globbuf); | |
4d59bff9 | 360 | mp = static_cast<char **>(realloc(mp,n*(sizeof(char*)))); |
832b75ed | 361 | bytes += n*(sizeof(char*)); |
a37e7145 | 362 | |
832b75ed GG |
363 | // and set up return values |
364 | *names=mp; | |
365 | return n; | |
366 | } | |
367 | ||
368 | // makes a list of device names to scan, for either ATA or SCSI | |
369 | // devices. Return -1 if no memory remaining, else the number of | |
370 | // devices on the list, which can be >=0. | |
371 | int make_device_names (char*** devlist, const char* name) { | |
372 | int retval, maxdev; | |
a37e7145 | 373 | |
832b75ed GG |
374 | #if 0 |
375 | // for testing case where no device names are found | |
376 | return 0; | |
377 | #endif | |
a37e7145 | 378 | |
832b75ed GG |
379 | if (!strcmp(name,"SCSI")) |
380 | retval=get_dev_names(devlist,"/dev/sd[a-z]", name, maxdev=26); | |
381 | else if (!strcmp(name,"ATA")) | |
382 | retval=get_dev_names(devlist,"/dev/hd[a-t]", name, maxdev=20); | |
383 | else | |
384 | // don't recognize disk type! | |
385 | return 0; | |
386 | ||
387 | // if we found traditional links, we are done | |
388 | if (retval>0) | |
389 | return retval; | |
a37e7145 | 390 | |
832b75ed GG |
391 | // else look for devfs entries without traditional links |
392 | return get_dev_names(devlist,"/dev/discs/disc*", name, maxdev); | |
393 | } | |
394 | ||
395 | ||
396 | // PURPOSE | |
397 | // This is an interface routine meant to isolate the OS dependent | |
398 | // parts of the code, and to provide a debugging interface. Each | |
399 | // different port and OS needs to provide it's own interface. This | |
400 | // is the linux one. | |
401 | // DETAILED DESCRIPTION OF ARGUMENTS | |
402 | // device: is the file descriptor provided by open() | |
403 | // command: defines the different operations. | |
404 | // select: additional input data if needed (which log, which type of | |
405 | // self-test). | |
406 | // data: location to write output data, if needed (512 bytes). | |
407 | // Note: not all commands use all arguments. | |
408 | // RETURN VALUES | |
409 | // -1 if the command failed | |
410 | // 0 if the command succeeded, | |
a37e7145 | 411 | // STATUS_CHECK routine: |
832b75ed GG |
412 | // -1 if the command failed |
413 | // 0 if the command succeeded and disk SMART status is "OK" | |
414 | // 1 if the command succeeded and disk SMART status is "FAILING" | |
415 | ||
416 | ||
a37e7145 | 417 | #define BUFFER_LENGTH (4+512) |
832b75ed GG |
418 | |
419 | int ata_command_interface(int device, smart_command_set command, int select, char *data){ | |
a37e7145 | 420 | unsigned char buff[BUFFER_LENGTH]; |
832b75ed GG |
421 | // positive: bytes to write to caller. negative: bytes to READ from |
422 | // caller. zero: non-data command | |
423 | int copydata=0; | |
424 | ||
425 | const int HDIO_DRIVE_CMD_OFFSET = 4; | |
426 | ||
427 | // See struct hd_drive_cmd_hdr in hdreg.h. Before calling ioctl() | |
428 | // buff[0]: ATA COMMAND CODE REGISTER | |
429 | // buff[1]: ATA SECTOR NUMBER REGISTER == LBA LOW REGISTER | |
430 | // buff[2]: ATA FEATURES REGISTER | |
431 | // buff[3]: ATA SECTOR COUNT REGISTER | |
432 | ||
433 | // Note that on return: | |
434 | // buff[2] contains the ATA SECTOR COUNT REGISTER | |
a37e7145 | 435 | |
832b75ed | 436 | // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes) |
a37e7145 | 437 | memset(buff, 0, BUFFER_LENGTH); |
832b75ed GG |
438 | |
439 | buff[0]=ATA_SMART_CMD; | |
440 | switch (command){ | |
441 | case CHECK_POWER_MODE: | |
442 | buff[0]=ATA_CHECK_POWER_MODE; | |
443 | copydata=1; | |
444 | break; | |
445 | case READ_VALUES: | |
446 | buff[2]=ATA_SMART_READ_VALUES; | |
447 | buff[3]=1; | |
448 | copydata=512; | |
449 | break; | |
450 | case READ_THRESHOLDS: | |
451 | buff[2]=ATA_SMART_READ_THRESHOLDS; | |
452 | buff[1]=buff[3]=1; | |
453 | copydata=512; | |
454 | break; | |
455 | case READ_LOG: | |
456 | buff[2]=ATA_SMART_READ_LOG_SECTOR; | |
457 | buff[1]=select; | |
458 | buff[3]=1; | |
459 | copydata=512; | |
460 | break; | |
461 | case WRITE_LOG: | |
462 | break; | |
463 | case IDENTIFY: | |
464 | buff[0]=ATA_IDENTIFY_DEVICE; | |
465 | buff[3]=1; | |
466 | copydata=512; | |
467 | break; | |
468 | case PIDENTIFY: | |
469 | buff[0]=ATA_IDENTIFY_PACKET_DEVICE; | |
470 | buff[3]=1; | |
471 | copydata=512; | |
472 | break; | |
473 | case ENABLE: | |
474 | buff[2]=ATA_SMART_ENABLE; | |
475 | buff[1]=1; | |
476 | break; | |
477 | case DISABLE: | |
478 | buff[2]=ATA_SMART_DISABLE; | |
479 | buff[1]=1; | |
480 | break; | |
481 | case STATUS: | |
482 | // this command only says if SMART is working. It could be | |
483 | // replaced with STATUS_CHECK below. | |
484 | buff[2]=ATA_SMART_STATUS; | |
485 | break; | |
486 | case AUTO_OFFLINE: | |
a37e7145 GG |
487 | // NSECT is 241 for enable but no data transfer. Use TASK ioctl. |
488 | buff[1]=ATA_SMART_AUTO_OFFLINE; | |
489 | buff[2]=select; | |
832b75ed GG |
490 | break; |
491 | case AUTOSAVE: | |
a37e7145 GG |
492 | // NSECT is 248 for enable but no data transfer. Use TASK ioctl. |
493 | buff[1]=ATA_SMART_AUTOSAVE; | |
494 | buff[2]=select; | |
832b75ed GG |
495 | break; |
496 | case IMMEDIATE_OFFLINE: | |
497 | buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; | |
498 | buff[1]=select; | |
499 | break; | |
500 | case STATUS_CHECK: | |
501 | // This command uses HDIO_DRIVE_TASK and has different syntax than | |
502 | // the other commands. | |
503 | buff[1]=ATA_SMART_STATUS; | |
504 | break; | |
505 | default: | |
506 | pout("Unrecognized command %d in linux_ata_command_interface()\n" | |
507 | "Please contact " PACKAGE_BUGREPORT "\n", command); | |
508 | errno=ENOSYS; | |
509 | return -1; | |
510 | } | |
a37e7145 | 511 | |
832b75ed GG |
512 | // This command uses the HDIO_DRIVE_TASKFILE ioctl(). This is the |
513 | // only ioctl() that can be used to WRITE data to the disk. | |
a37e7145 | 514 | if (command==WRITE_LOG) { |
832b75ed GG |
515 | unsigned char task[sizeof(ide_task_request_t)+512]; |
516 | ide_task_request_t *reqtask=(ide_task_request_t *) task; | |
517 | task_struct_t *taskfile=(task_struct_t *) reqtask->io_ports; | |
518 | int retval; | |
519 | ||
520 | memset(task, 0, sizeof(task)); | |
a37e7145 | 521 | |
832b75ed GG |
522 | taskfile->data = 0; |
523 | taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR; | |
524 | taskfile->sector_count = 1; | |
525 | taskfile->sector_number = select; | |
526 | taskfile->low_cylinder = 0x4f; | |
527 | taskfile->high_cylinder = 0xc2; | |
528 | taskfile->device_head = 0; | |
529 | taskfile->command = ATA_SMART_CMD; | |
a37e7145 | 530 | |
832b75ed GG |
531 | reqtask->data_phase = TASKFILE_OUT; |
532 | reqtask->req_cmd = IDE_DRIVE_TASK_OUT; | |
533 | reqtask->out_size = 512; | |
534 | reqtask->in_size = 0; | |
a37e7145 | 535 | |
832b75ed GG |
536 | // copy user data into the task request structure |
537 | memcpy(task+sizeof(ide_task_request_t), data, 512); | |
a37e7145 | 538 | |
832b75ed GG |
539 | if ((retval=ioctl(device, HDIO_DRIVE_TASKFILE, task))) { |
540 | if (retval==-EINVAL) | |
4d59bff9 | 541 | pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n"); |
832b75ed GG |
542 | return -1; |
543 | } | |
544 | return 0; | |
545 | } | |
a37e7145 | 546 | |
832b75ed GG |
547 | // There are two different types of ioctls(). The HDIO_DRIVE_TASK |
548 | // one is this: | |
a37e7145 | 549 | if (command==STATUS_CHECK || command==AUTOSAVE || command==AUTO_OFFLINE){ |
832b75ed GG |
550 | int retval; |
551 | ||
552 | // NOT DOCUMENTED in /usr/src/linux/include/linux/hdreg.h. You | |
553 | // have to read the IDE driver source code. Sigh. | |
554 | // buff[0]: ATA COMMAND CODE REGISTER | |
555 | // buff[1]: ATA FEATURES REGISTER | |
556 | // buff[2]: ATA SECTOR_COUNT | |
557 | // buff[3]: ATA SECTOR NUMBER | |
558 | // buff[4]: ATA CYL LO REGISTER | |
559 | // buff[5]: ATA CYL HI REGISTER | |
560 | // buff[6]: ATA DEVICE HEAD | |
561 | ||
562 | unsigned const char normal_lo=0x4f, normal_hi=0xc2; | |
563 | unsigned const char failed_lo=0xf4, failed_hi=0x2c; | |
564 | buff[4]=normal_lo; | |
565 | buff[5]=normal_hi; | |
a37e7145 | 566 | |
832b75ed GG |
567 | if ((retval=ioctl(device, HDIO_DRIVE_TASK, buff))) { |
568 | if (retval==-EINVAL) { | |
4d59bff9 GG |
569 | pout("Error SMART Status command via HDIO_DRIVE_TASK failed"); |
570 | pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n"); | |
832b75ed GG |
571 | } |
572 | else | |
4d59bff9 | 573 | syserror("Error SMART Status command failed"); |
832b75ed GG |
574 | return -1; |
575 | } | |
a37e7145 | 576 | |
832b75ed GG |
577 | // Cyl low and Cyl high unchanged means "Good SMART status" |
578 | if (buff[4]==normal_lo && buff[5]==normal_hi) | |
579 | return 0; | |
a37e7145 | 580 | |
832b75ed GG |
581 | // These values mean "Bad SMART status" |
582 | if (buff[4]==failed_lo && buff[5]==failed_hi) | |
583 | return 1; | |
a37e7145 | 584 | |
832b75ed GG |
585 | // We haven't gotten output that makes sense; print out some debugging info |
586 | syserror("Error SMART Status command failed"); | |
587 | pout("Please get assistance from " PACKAGE_HOMEPAGE "\n"); | |
588 | pout("Register values returned from SMART Status command are:\n"); | |
a37e7145 GG |
589 | pout("ST =0x%02x\n",(int)buff[0]); |
590 | pout("ERR=0x%02x\n",(int)buff[1]); | |
832b75ed GG |
591 | pout("NS =0x%02x\n",(int)buff[2]); |
592 | pout("SC =0x%02x\n",(int)buff[3]); | |
593 | pout("CL =0x%02x\n",(int)buff[4]); | |
594 | pout("CH =0x%02x\n",(int)buff[5]); | |
595 | pout("SEL=0x%02x\n",(int)buff[6]); | |
a37e7145 | 596 | return -1; |
832b75ed | 597 | } |
a37e7145 | 598 | |
832b75ed GG |
599 | #if 1 |
600 | // Note to people doing ports to other OSes -- don't worry about | |
601 | // this block -- you can safely ignore it. I have put it here | |
602 | // because under linux when you do IDENTIFY DEVICE to a packet | |
603 | // device, it generates an ugly kernel syslog error message. This | |
604 | // is harmless but frightens users. So this block detects packet | |
605 | // devices and make IDENTIFY DEVICE fail "nicely" without a syslog | |
606 | // error message. | |
607 | // | |
608 | // If you read only the ATA specs, it appears as if a packet device | |
609 | // *might* respond to the IDENTIFY DEVICE command. This is | |
610 | // misleading - it's because around the time that SFF-8020 was | |
611 | // incorporated into the ATA-3/4 standard, the ATA authors were | |
612 | // sloppy. See SFF-8020 and you will see that ATAPI devices have | |
613 | // *always* had IDENTIFY PACKET DEVICE as a mandatory part of their | |
614 | // command set, and return 'Command Aborted' to IDENTIFY DEVICE. | |
615 | if (command==IDENTIFY || command==PIDENTIFY){ | |
616 | unsigned short deviceid[256]; | |
617 | // check the device identity, as seen when the system was booted | |
618 | // or the device was FIRST registered. This will not be current | |
619 | // if the user has subsequently changed some of the parameters. If | |
620 | // device is a packet device, swap the command interpretations. | |
621 | if (!ioctl(device, HDIO_GET_IDENTITY, deviceid) && (deviceid[0] & 0x8000)) | |
622 | buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE; | |
623 | } | |
624 | #endif | |
a37e7145 | 625 | |
832b75ed GG |
626 | // We are now doing the HDIO_DRIVE_CMD type ioctl. |
627 | if ((ioctl(device, HDIO_DRIVE_CMD, buff))) | |
628 | return -1; | |
629 | ||
630 | // CHECK POWER MODE command returns information in the Sector Count | |
631 | // register (buff[3]). Copy to return data buffer. | |
632 | if (command==CHECK_POWER_MODE) | |
633 | buff[HDIO_DRIVE_CMD_OFFSET]=buff[2]; | |
634 | ||
635 | // if the command returns data then copy it back | |
636 | if (copydata) | |
637 | memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata); | |
ba59cff1 | 638 | |
a37e7145 | 639 | return 0; |
ba59cff1 | 640 | } |
ba59cff1 | 641 | |
832b75ed GG |
642 | // >>>>>> Start of general SCSI specific linux code |
643 | ||
644 | /* Linux specific code. | |
645 | * Historically smartmontools (and smartsuite before it) used the | |
646 | * SCSI_IOCTL_SEND_COMMAND ioctl which is available to all linux device | |
647 | * nodes that use the SCSI subsystem. A better interface has been available | |
648 | * via the SCSI generic (sg) driver but this involves the extra step of | |
649 | * mapping disk devices (e.g. /dev/sda) to the corresponding sg device | |
650 | * (e.g. /dev/sg2). In the linux kernel 2.6 series most of the facilities of | |
651 | * the sg driver have become available via the SG_IO ioctl which is available | |
652 | * on all SCSI devices (on SCSI tape devices from lk 2.6.6). | |
653 | * So the strategy below is to find out if the SG_IO ioctl is available and | |
654 | * if so use it; failing that use the older SCSI_IOCTL_SEND_COMMAND ioctl. | |
655 | * Should work in 2.0, 2.2, 2.4 and 2.6 series linux kernels. */ | |
656 | ||
657 | #define MAX_DXFER_LEN 1024 /* can be increased if necessary */ | |
658 | #define SEND_IOCTL_RESP_SENSE_LEN 16 /* ioctl limitation */ | |
659 | #define SG_IO_RESP_SENSE_LEN 64 /* large enough see buffer */ | |
660 | #define LSCSI_DRIVER_MASK 0xf /* mask out "suggestions" */ | |
661 | #define LSCSI_DRIVER_SENSE 0x8 /* alternate CHECK CONDITION indication */ | |
662 | #define LSCSI_DRIVER_TIMEOUT 0x6 | |
663 | #define LSCSI_DID_TIME_OUT 0x3 | |
664 | #define LSCSI_DID_BUS_BUSY 0x2 | |
665 | #define LSCSI_DID_NO_CONNECT 0x1 | |
666 | ||
667 | #ifndef SCSI_IOCTL_SEND_COMMAND | |
668 | #define SCSI_IOCTL_SEND_COMMAND 1 | |
669 | #endif | |
670 | ||
671 | #define SG_IO_PRESENT_UNKNOWN 0 | |
672 | #define SG_IO_PRESENT_YES 1 | |
673 | #define SG_IO_PRESENT_NO 2 | |
674 | ||
675 | static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report, | |
4d59bff9 | 676 | int unknown); |
832b75ed GG |
677 | static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report); |
678 | ||
679 | static int sg_io_state = SG_IO_PRESENT_UNKNOWN; | |
680 | ||
681 | /* Preferred implementation for issuing SCSI commands in linux. This | |
682 | * function uses the SG_IO ioctl. Return 0 if command issued successfully | |
683 | * (various status values should still be checked). If the SCSI command | |
684 | * cannot be issued then a negative errno value is returned. */ | |
685 | static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report, | |
4d59bff9 | 686 | int unknown) |
832b75ed GG |
687 | { |
688 | #ifndef SG_IO | |
689 | ARGUSED(dev_fd); ARGUSED(iop); ARGUSED(report); | |
690 | return -ENOTTY; | |
691 | #else | |
692 | struct sg_io_hdr io_hdr; | |
693 | ||
694 | if (report > 0) { | |
695 | int k, j; | |
696 | const unsigned char * ucp = iop->cmnd; | |
697 | const char * np; | |
698 | char buff[256]; | |
699 | const int sz = (int)sizeof(buff); | |
700 | ||
701 | np = scsi_get_opcode_name(ucp[0]); | |
702 | j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>"); | |
703 | for (k = 0; k < (int)iop->cmnd_len; ++k) | |
704 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); | |
a37e7145 | 705 | if ((report > 1) && |
832b75ed GG |
706 | (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) { |
707 | int trunc = (iop->dxfer_len > 256) ? 1 : 0; | |
708 | ||
709 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " | |
710 | "data, len=%d%s:\n", (int)iop->dxfer_len, | |
711 | (trunc ? " [only first 256 bytes shown]" : "")); | |
a37e7145 | 712 | dStrHex((const char *)iop->dxferp, |
4d59bff9 | 713 | (trunc ? 256 : iop->dxfer_len) , 1); |
832b75ed GG |
714 | } |
715 | else | |
716 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); | |
717 | pout(buff); | |
718 | } | |
719 | memset(&io_hdr, 0, sizeof(struct sg_io_hdr)); | |
720 | io_hdr.interface_id = 'S'; | |
721 | io_hdr.cmd_len = iop->cmnd_len; | |
722 | io_hdr.mx_sb_len = iop->max_sense_len; | |
723 | io_hdr.dxfer_len = iop->dxfer_len; | |
724 | io_hdr.dxferp = iop->dxferp; | |
725 | io_hdr.cmdp = iop->cmnd; | |
726 | io_hdr.sbp = iop->sensep; | |
727 | /* sg_io_hdr interface timeout has millisecond units. Timeout of 0 | |
728 | defaults to 60 seconds. */ | |
729 | io_hdr.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000; | |
730 | switch (iop->dxfer_dir) { | |
731 | case DXFER_NONE: | |
732 | io_hdr.dxfer_direction = SG_DXFER_NONE; | |
733 | break; | |
734 | case DXFER_FROM_DEVICE: | |
735 | io_hdr.dxfer_direction = SG_DXFER_FROM_DEV; | |
736 | break; | |
737 | case DXFER_TO_DEVICE: | |
738 | io_hdr.dxfer_direction = SG_DXFER_TO_DEV; | |
739 | break; | |
740 | default: | |
741 | pout("do_scsi_cmnd_io: bad dxfer_dir\n"); | |
742 | return -EINVAL; | |
743 | } | |
744 | iop->resp_sense_len = 0; | |
745 | iop->scsi_status = 0; | |
746 | iop->resid = 0; | |
747 | if (ioctl(dev_fd, SG_IO, &io_hdr) < 0) { | |
748 | if (report && (! unknown)) | |
749 | pout(" SG_IO ioctl failed, errno=%d [%s]\n", errno, | |
4d59bff9 | 750 | strerror(errno)); |
832b75ed GG |
751 | return -errno; |
752 | } | |
a37e7145 GG |
753 | iop->resid = io_hdr.resid; |
754 | iop->scsi_status = io_hdr.status; | |
832b75ed GG |
755 | if (report > 0) { |
756 | pout(" scsi_status=0x%x, host_status=0x%x, driver_status=0x%x\n" | |
a37e7145 | 757 | " info=0x%x duration=%d milliseconds resid=%d\n", io_hdr.status, |
4d59bff9 | 758 | io_hdr.host_status, io_hdr.driver_status, io_hdr.info, |
a37e7145 | 759 | io_hdr.duration, io_hdr.resid); |
832b75ed GG |
760 | if (report > 1) { |
761 | if (DXFER_FROM_DEVICE == iop->dxfer_dir) { | |
a37e7145 GG |
762 | int trunc, len; |
763 | ||
764 | len = iop->dxfer_len - iop->resid; | |
765 | trunc = (len > 256) ? 1 : 0; | |
766 | if (len > 0) { | |
767 | pout(" Incoming data, len=%d%s:\n", len, | |
768 | (trunc ? " [only first 256 bytes shown]" : "")); | |
769 | dStrHex((const char*)iop->dxferp, (trunc ? 256 : len), | |
770 | 1); | |
771 | } else | |
772 | pout(" Incoming data trimmed to nothing by resid\n"); | |
832b75ed GG |
773 | } |
774 | } | |
775 | } | |
832b75ed GG |
776 | |
777 | if (io_hdr.info | SG_INFO_CHECK) { /* error or warning */ | |
4d59bff9 | 778 | int masked_driver_status = (LSCSI_DRIVER_MASK & io_hdr.driver_status); |
832b75ed | 779 | |
4d59bff9 | 780 | if (0 != io_hdr.host_status) { |
832b75ed GG |
781 | if ((LSCSI_DID_NO_CONNECT == io_hdr.host_status) || |
782 | (LSCSI_DID_BUS_BUSY == io_hdr.host_status) || | |
783 | (LSCSI_DID_TIME_OUT == io_hdr.host_status)) | |
784 | return -ETIMEDOUT; | |
4d59bff9 GG |
785 | else |
786 | return -EIO; /* catch all */ | |
832b75ed GG |
787 | } |
788 | if (0 != masked_driver_status) { | |
789 | if (LSCSI_DRIVER_TIMEOUT == masked_driver_status) | |
790 | return -ETIMEDOUT; | |
4d59bff9 GG |
791 | else if (LSCSI_DRIVER_SENSE != masked_driver_status) |
792 | return -EIO; | |
793 | } | |
832b75ed GG |
794 | if (LSCSI_DRIVER_SENSE == masked_driver_status) |
795 | iop->scsi_status = SCSI_STATUS_CHECK_CONDITION; | |
796 | iop->resp_sense_len = io_hdr.sb_len_wr; | |
a37e7145 | 797 | if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) && |
832b75ed GG |
798 | iop->sensep && (iop->resp_sense_len > 0)) { |
799 | if (report > 1) { | |
800 | pout(" >>> Sense buffer, len=%d:\n", | |
4d59bff9 | 801 | (int)iop->resp_sense_len); |
832b75ed GG |
802 | dStrHex((const char *)iop->sensep, iop->resp_sense_len , 1); |
803 | } | |
804 | } | |
805 | if (report) { | |
806 | if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) { | |
4d59bff9 GG |
807 | if ((iop->sensep[0] & 0x7f) > 0x71) |
808 | pout(" status=%x: [desc] sense_key=%x asc=%x ascq=%x\n", | |
809 | iop->scsi_status, iop->sensep[1] & 0xf, | |
810 | iop->sensep[2], iop->sensep[3]); | |
811 | else | |
812 | pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", | |
813 | iop->scsi_status, iop->sensep[2] & 0xf, | |
814 | iop->sensep[12], iop->sensep[13]); | |
832b75ed GG |
815 | } |
816 | else | |
817 | pout(" status=0x%x\n", iop->scsi_status); | |
818 | } | |
819 | } | |
820 | return 0; | |
821 | #endif | |
822 | } | |
823 | ||
824 | struct linux_ioctl_send_command | |
825 | { | |
826 | int inbufsize; | |
827 | int outbufsize; | |
828 | UINT8 buff[MAX_DXFER_LEN + 16]; | |
829 | }; | |
830 | ||
a37e7145 | 831 | /* The Linux SCSI_IOCTL_SEND_COMMAND ioctl is primitive and it doesn't |
832b75ed GG |
832 | * support: CDB length (guesses it from opcode), resid and timeout. |
833 | * Patches in Linux 2.4.21 and 2.5.70 to extend SEND DIAGNOSTIC timeout | |
834 | * to 2 hours in order to allow long foreground extended self tests. */ | |
835 | static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report) | |
836 | { | |
837 | struct linux_ioctl_send_command wrk; | |
838 | int status, buff_offset; | |
839 | size_t len; | |
840 | ||
841 | memcpy(wrk.buff, iop->cmnd, iop->cmnd_len); | |
842 | buff_offset = iop->cmnd_len; | |
843 | if (report > 0) { | |
844 | int k, j; | |
845 | const unsigned char * ucp = iop->cmnd; | |
846 | const char * np; | |
847 | char buff[256]; | |
848 | const int sz = (int)sizeof(buff); | |
849 | ||
850 | np = scsi_get_opcode_name(ucp[0]); | |
851 | j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>"); | |
852 | for (k = 0; k < (int)iop->cmnd_len; ++k) | |
853 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); | |
a37e7145 | 854 | if ((report > 1) && |
832b75ed GG |
855 | (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) { |
856 | int trunc = (iop->dxfer_len > 256) ? 1 : 0; | |
857 | ||
858 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " | |
859 | "data, len=%d%s:\n", (int)iop->dxfer_len, | |
860 | (trunc ? " [only first 256 bytes shown]" : "")); | |
a37e7145 | 861 | dStrHex((const char *)iop->dxferp, |
4d59bff9 | 862 | (trunc ? 256 : iop->dxfer_len) , 1); |
832b75ed GG |
863 | } |
864 | else | |
865 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); | |
866 | pout(buff); | |
867 | } | |
868 | switch (iop->dxfer_dir) { | |
869 | case DXFER_NONE: | |
870 | wrk.inbufsize = 0; | |
871 | wrk.outbufsize = 0; | |
872 | break; | |
873 | case DXFER_FROM_DEVICE: | |
874 | wrk.inbufsize = 0; | |
875 | if (iop->dxfer_len > MAX_DXFER_LEN) | |
876 | return -EINVAL; | |
877 | wrk.outbufsize = iop->dxfer_len; | |
878 | break; | |
879 | case DXFER_TO_DEVICE: | |
880 | if (iop->dxfer_len > MAX_DXFER_LEN) | |
881 | return -EINVAL; | |
882 | memcpy(wrk.buff + buff_offset, iop->dxferp, iop->dxfer_len); | |
883 | wrk.inbufsize = iop->dxfer_len; | |
884 | wrk.outbufsize = 0; | |
885 | break; | |
886 | default: | |
887 | pout("do_scsi_cmnd_io: bad dxfer_dir\n"); | |
888 | return -EINVAL; | |
889 | } | |
890 | iop->resp_sense_len = 0; | |
891 | iop->scsi_status = 0; | |
892 | iop->resid = 0; | |
893 | status = ioctl(dev_fd, SCSI_IOCTL_SEND_COMMAND, &wrk); | |
894 | if (-1 == status) { | |
895 | if (report) | |
896 | pout(" SCSI_IOCTL_SEND_COMMAND ioctl failed, errno=%d [%s]\n", | |
897 | errno, strerror(errno)); | |
898 | return -errno; | |
899 | } | |
900 | if (0 == status) { | |
901 | if (report > 0) | |
902 | pout(" status=0\n"); | |
903 | if (DXFER_FROM_DEVICE == iop->dxfer_dir) { | |
904 | memcpy(iop->dxferp, wrk.buff, iop->dxfer_len); | |
905 | if (report > 1) { | |
906 | int trunc = (iop->dxfer_len > 256) ? 1 : 0; | |
907 | ||
908 | pout(" Incoming data, len=%d%s:\n", (int)iop->dxfer_len, | |
909 | (trunc ? " [only first 256 bytes shown]" : "")); | |
a37e7145 | 910 | dStrHex((const char*)iop->dxferp, |
4d59bff9 | 911 | (trunc ? 256 : iop->dxfer_len) , 1); |
832b75ed GG |
912 | } |
913 | } | |
914 | return 0; | |
915 | } | |
916 | iop->scsi_status = status & 0x7e; /* bits 0 and 7 used to be for vendors */ | |
917 | if (LSCSI_DRIVER_SENSE == ((status >> 24) & 0xf)) | |
918 | iop->scsi_status = SCSI_STATUS_CHECK_CONDITION; | |
919 | len = (SEND_IOCTL_RESP_SENSE_LEN < iop->max_sense_len) ? | |
920 | SEND_IOCTL_RESP_SENSE_LEN : iop->max_sense_len; | |
a37e7145 | 921 | if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) && |
832b75ed GG |
922 | iop->sensep && (len > 0)) { |
923 | memcpy(iop->sensep, wrk.buff, len); | |
924 | iop->resp_sense_len = len; | |
925 | if (report > 1) { | |
926 | pout(" >>> Sense buffer, len=%d:\n", (int)len); | |
927 | dStrHex((const char *)wrk.buff, len , 1); | |
928 | } | |
929 | } | |
930 | if (report) { | |
931 | if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) { | |
932 | pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", status & 0xff, | |
933 | wrk.buff[2] & 0xf, wrk.buff[12], wrk.buff[13]); | |
934 | } | |
935 | else | |
936 | pout(" status=0x%x\n", status); | |
937 | } | |
938 | if (iop->scsi_status > 0) | |
939 | return 0; | |
940 | else { | |
941 | if (report > 0) | |
a37e7145 | 942 | pout(" ioctl status=0x%x but scsi status=0, fail with EIO\n", |
832b75ed GG |
943 | status); |
944 | return -EIO; /* give up, assume no device there */ | |
945 | } | |
946 | } | |
947 | ||
948 | /* SCSI command transmission interface function, linux version. | |
949 | * Returns 0 if SCSI command successfully launched and response | |
a37e7145 | 950 | * received. Even when 0 is returned the caller should check |
832b75ed GG |
951 | * scsi_cmnd_io::scsi_status for SCSI defined errors and warnings |
952 | * (e.g. CHECK CONDITION). If the SCSI command could not be issued | |
953 | * (e.g. device not present or timeout) or some other problem | |
954 | * (e.g. timeout) then returns a negative errno value */ | |
ba59cff1 GG |
955 | static int do_normal_scsi_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, |
956 | int report) | |
832b75ed GG |
957 | { |
958 | int res; | |
959 | ||
960 | /* implementation relies on static sg_io_state variable. If not | |
961 | * previously set tries the SG_IO ioctl. If that succeeds assume | |
962 | * that SG_IO ioctl functional. If it fails with an errno value | |
a37e7145 | 963 | * other than ENODEV (no device) or permission then assume |
832b75ed GG |
964 | * SCSI_IOCTL_SEND_COMMAND is the only option. */ |
965 | switch (sg_io_state) { | |
966 | case SG_IO_PRESENT_UNKNOWN: | |
967 | /* ignore report argument */ | |
4d59bff9 GG |
968 | if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, 1))) { |
969 | sg_io_state = SG_IO_PRESENT_YES; | |
970 | return 0; | |
971 | } else if ((-ENODEV == res) || (-EACCES == res) || (-EPERM == res)) | |
972 | return res; /* wait until we see a device */ | |
832b75ed | 973 | sg_io_state = SG_IO_PRESENT_NO; |
4d59bff9 | 974 | /* drop through by design */ |
832b75ed | 975 | case SG_IO_PRESENT_NO: |
4d59bff9 | 976 | return sisc_cmnd_io(dev_fd, iop, report); |
832b75ed | 977 | case SG_IO_PRESENT_YES: |
4d59bff9 | 978 | return sg_io_cmnd_io(dev_fd, iop, report, 0); |
832b75ed | 979 | default: |
a37e7145 | 980 | pout(">>>> do_scsi_cmnd_io: bad sg_io_state=%d\n", sg_io_state); |
4d59bff9 GG |
981 | sg_io_state = SG_IO_PRESENT_UNKNOWN; |
982 | return -EIO; /* report error and reset state */ | |
832b75ed GG |
983 | } |
984 | } | |
985 | ||
ba59cff1 GG |
986 | /* Check and call the right interface. Maybe when the do_generic_scsi_cmd_io interface is better |
987 | we can take off this crude way of calling the right interface */ | |
988 | int do_scsi_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report) | |
989 | { | |
990 | switch(con->controller_type) | |
991 | { | |
992 | case CONTROLLER_CCISS: | |
a37e7145 | 993 | #ifdef HAVE_LINUX_CCISS_IOCTL_H |
ba59cff1 | 994 | return cciss_io_interface(dev_fd, con->controller_port-1, iop, report); |
a37e7145 GG |
995 | #else |
996 | { | |
997 | static int warned = 0; | |
998 | if (!warned) { | |
999 | pout("CCISS support is not available in this build of smartmontools,\n" | |
1000 | "<linux/cciss_ioctl.h> was not available at build time.\n\n"); | |
1001 | warned = 1; | |
1002 | } | |
1003 | } | |
1004 | errno = ENOSYS; | |
1005 | return -1; | |
1006 | #endif | |
ba59cff1 GG |
1007 | // not reached |
1008 | break; | |
1009 | default: | |
1010 | return do_normal_scsi_cmnd_io(dev_fd, iop, report); | |
1011 | // not reached | |
1012 | break; | |
1013 | } | |
1014 | } | |
832b75ed | 1015 | |
a37e7145 | 1016 | // >>>>>> End of general SCSI specific linux code |
832b75ed GG |
1017 | |
1018 | // prototype | |
1019 | void printwarning(smart_command_set command); | |
1020 | ||
1021 | // PURPOSE | |
1022 | // This is an interface routine meant to isolate the OS dependent | |
1023 | // parts of the code, and to provide a debugging interface. Each | |
1024 | // different port and OS needs to provide it's own interface. This | |
1025 | // is the linux interface to the 3ware 3w-xxxx driver. It allows ATA | |
1026 | // commands to be passed through the SCSI driver. | |
1027 | // DETAILED DESCRIPTION OF ARGUMENTS | |
1028 | // fd: is the file descriptor provided by open() | |
1029 | // disknum is the disk number (0 to 15) in the RAID array | |
1030 | // escalade_type indicates the type of controller type, and if scsi or char interface is used | |
1031 | // command: defines the different operations. | |
1032 | // select: additional input data if needed (which log, which type of | |
1033 | // self-test). | |
1034 | // data: location to write output data, if needed (512 bytes). | |
1035 | // Note: not all commands use all arguments. | |
1036 | // RETURN VALUES | |
1037 | // -1 if the command failed | |
1038 | // 0 if the command succeeded, | |
a37e7145 | 1039 | // STATUS_CHECK routine: |
832b75ed GG |
1040 | // -1 if the command failed |
1041 | // 0 if the command succeeded and disk SMART status is "OK" | |
1042 | // 1 if the command succeeded and disk SMART status is "FAILING" | |
1043 | ||
1044 | ||
1045 | /* 512 is the max payload size: increase if needed */ | |
1046 | #define BUFFER_LEN_678K ( sizeof(TW_Ioctl) ) // 1044 unpacked, 1041 packed | |
1047 | #define BUFFER_LEN_678K_CHAR ( sizeof(TW_New_Ioctl)+512-1 ) // 1539 unpacked, 1536 packed | |
1048 | #define BUFFER_LEN_9000 ( sizeof(TW_Ioctl_Buf_Apache)+512-1 ) // 2051 unpacked, 2048 packed | |
1049 | #define TW_IOCTL_BUFFER_SIZE ( MAX(MAX(BUFFER_LEN_678K, BUFFER_LEN_9000), BUFFER_LEN_678K_CHAR) ) | |
1050 | ||
1051 | int escalade_command_interface(int fd, int disknum, int escalade_type, smart_command_set command, int select, char *data){ | |
1052 | ||
1053 | // return value and buffer for ioctl() | |
1054 | int ioctlreturn, readdata=0; | |
1055 | ||
1056 | // Used by both the SCSI and char interfaces | |
1057 | TW_Passthru *passthru=NULL; | |
1058 | char ioctl_buffer[TW_IOCTL_BUFFER_SIZE]; | |
1059 | ||
1060 | // only used for SCSI device interface | |
1061 | TW_Ioctl *tw_ioctl=NULL; | |
1062 | TW_Output *tw_output=NULL; | |
1063 | ||
1064 | // only used for 6000/7000/8000 char device interface | |
1065 | TW_New_Ioctl *tw_ioctl_char=NULL; | |
1066 | ||
1067 | // only used for 9000 character device interface | |
1068 | TW_Ioctl_Buf_Apache *tw_ioctl_apache=NULL; | |
a37e7145 | 1069 | |
832b75ed GG |
1070 | memset(ioctl_buffer, 0, TW_IOCTL_BUFFER_SIZE); |
1071 | ||
1072 | if (escalade_type==CONTROLLER_3WARE_9000_CHAR) { | |
1073 | tw_ioctl_apache = (TW_Ioctl_Buf_Apache *)ioctl_buffer; | |
1074 | tw_ioctl_apache->driver_command.control_code = TW_IOCTL_FIRMWARE_PASS_THROUGH; | |
1075 | tw_ioctl_apache->driver_command.buffer_length = 512; /* payload size */ | |
1076 | passthru = (TW_Passthru *)&(tw_ioctl_apache->firmware_command.command.oldcommand); | |
1077 | } | |
1078 | else if (escalade_type==CONTROLLER_3WARE_678K_CHAR) { | |
1079 | tw_ioctl_char = (TW_New_Ioctl *)ioctl_buffer; | |
1080 | tw_ioctl_char->data_buffer_length = 512; | |
1081 | passthru = (TW_Passthru *)&(tw_ioctl_char->firmware_command); | |
1082 | } | |
1083 | else if (escalade_type==CONTROLLER_3WARE_678K) { | |
1084 | tw_ioctl = (TW_Ioctl *)ioctl_buffer; | |
1085 | tw_ioctl->cdb[0] = TW_IOCTL; | |
1086 | tw_ioctl->opcode = TW_ATA_PASSTHRU; | |
1087 | tw_ioctl->input_length = 512; // correct even for non-data commands | |
1088 | tw_ioctl->output_length = 512; // correct even for non-data commands | |
1089 | tw_output = (TW_Output *)tw_ioctl; | |
1090 | passthru = (TW_Passthru *)&(tw_ioctl->input_data); | |
1091 | } | |
1092 | else { | |
1093 | pout("Unrecognized escalade_type %d in linux_3ware_command_interface(disk %d)\n" | |
1094 | "Please contact " PACKAGE_BUGREPORT "\n", escalade_type, disknum); | |
1095 | errno=ENOSYS; | |
1096 | return -1; | |
1097 | } | |
1098 | ||
1099 | // Same for (almost) all commands - but some reset below | |
1100 | passthru->byte0.opcode = TW_OP_ATA_PASSTHRU; | |
1101 | passthru->request_id = 0xFF; | |
a37e7145 GG |
1102 | passthru->unit = disknum; |
1103 | passthru->status = 0; | |
832b75ed GG |
1104 | passthru->flags = 0x1; |
1105 | passthru->drive_head = 0x0; | |
1106 | passthru->sector_num = 0; | |
1107 | ||
1108 | // All SMART commands use this CL/CH signature. These are magic | |
1109 | // values from the ATA specifications. | |
1110 | passthru->cylinder_lo = 0x4F; | |
1111 | passthru->cylinder_hi = 0xC2; | |
a37e7145 | 1112 | |
832b75ed GG |
1113 | // SMART ATA COMMAND REGISTER value |
1114 | passthru->command = ATA_SMART_CMD; | |
a37e7145 | 1115 | |
832b75ed GG |
1116 | // Is this a command that reads or returns 512 bytes? |
1117 | // passthru->param values are: | |
1118 | // 0x0 - non data command without TFR write check, | |
1119 | // 0x8 - non data command with TFR write check, | |
1120 | // 0xD - data command that returns data to host from device | |
1121 | // 0xF - data command that writes data from host to device | |
1122 | // passthru->size values are 0x5 for non-data and 0x07 for data | |
1123 | if (command == READ_VALUES || | |
1124 | command == READ_THRESHOLDS || | |
1125 | command == READ_LOG || | |
1126 | command == IDENTIFY || | |
1127 | command == WRITE_LOG ) { | |
1128 | readdata=1; | |
1129 | passthru->byte0.sgloff = 0x5; | |
1130 | passthru->size = 0x7; | |
1131 | passthru->param = 0xD; | |
1132 | passthru->sector_count = 0x1; | |
1133 | // For 64-bit to work correctly, up the size of the command packet | |
1134 | // in dwords by 1 to account for the 64-bit single sgl 'address' | |
1135 | // field. Note that this doesn't agree with the typedefs but it's | |
1136 | // right (agree with kernel driver behavior/typedefs). | |
1137 | if (escalade_type==CONTROLLER_3WARE_9000_CHAR && sizeof(long)==8) | |
1138 | passthru->size++; | |
1139 | } | |
1140 | else { | |
a37e7145 GG |
1141 | // Non data command -- but doesn't use large sector |
1142 | // count register values. | |
832b75ed GG |
1143 | passthru->byte0.sgloff = 0x0; |
1144 | passthru->size = 0x5; | |
1145 | passthru->param = 0x8; | |
1146 | passthru->sector_count = 0x0; | |
1147 | } | |
a37e7145 | 1148 | |
832b75ed GG |
1149 | // Now set ATA registers depending upon command |
1150 | switch (command){ | |
1151 | case CHECK_POWER_MODE: | |
1152 | passthru->command = ATA_CHECK_POWER_MODE; | |
1153 | passthru->features = 0; | |
1154 | passthru->cylinder_lo = 0; | |
1155 | passthru->cylinder_hi = 0; | |
1156 | break; | |
1157 | case READ_VALUES: | |
1158 | passthru->features = ATA_SMART_READ_VALUES; | |
1159 | break; | |
1160 | case READ_THRESHOLDS: | |
1161 | passthru->features = ATA_SMART_READ_THRESHOLDS; | |
1162 | break; | |
1163 | case READ_LOG: | |
1164 | passthru->features = ATA_SMART_READ_LOG_SECTOR; | |
1165 | // log number to return | |
1166 | passthru->sector_num = select; | |
1167 | break; | |
1168 | case WRITE_LOG: | |
1169 | if (escalade_type == CONTROLLER_3WARE_9000_CHAR) | |
1170 | memcpy((unsigned char *)tw_ioctl_apache->data_buffer, data, 512); | |
1171 | else if (escalade_type == CONTROLLER_3WARE_678K_CHAR) | |
1172 | memcpy((unsigned char *)tw_ioctl_char->data_buffer, data, 512); | |
1173 | else { | |
1174 | // COMMAND NOT SUPPORTED VIA SCSI IOCTL INTERFACE | |
1175 | // memcpy(tw_output->output_data, data, 512); | |
1176 | printwarning(command); | |
1177 | errno=ENOTSUP; | |
1178 | return -1; | |
1179 | } | |
1180 | readdata=0; | |
1181 | passthru->features = ATA_SMART_WRITE_LOG_SECTOR; | |
1182 | passthru->sector_count = 1; | |
1183 | passthru->sector_num = select; | |
1184 | passthru->param = 0xF; // PIO data write | |
1185 | break; | |
1186 | case IDENTIFY: | |
1187 | // ATA IDENTIFY DEVICE | |
1188 | passthru->command = ATA_IDENTIFY_DEVICE; | |
1189 | passthru->features = 0; | |
1190 | passthru->cylinder_lo = 0; | |
1191 | passthru->cylinder_hi = 0; | |
1192 | break; | |
1193 | case PIDENTIFY: | |
1194 | // 3WARE controller can NOT have packet device internally | |
1195 | pout("WARNING - NO DEVICE FOUND ON 3WARE CONTROLLER (disk %d)\n", disknum); | |
1196 | pout("Note: /dev/sdX many need to be replaced with /dev/tweN or /dev/twaN\n"); | |
1197 | errno=ENODEV; | |
1198 | return -1; | |
1199 | case ENABLE: | |
1200 | passthru->features = ATA_SMART_ENABLE; | |
1201 | break; | |
1202 | case DISABLE: | |
1203 | passthru->features = ATA_SMART_DISABLE; | |
1204 | break; | |
1205 | case AUTO_OFFLINE: | |
1206 | passthru->features = ATA_SMART_AUTO_OFFLINE; | |
1207 | // Enable or disable? | |
1208 | passthru->sector_count = select; | |
1209 | break; | |
1210 | case AUTOSAVE: | |
1211 | passthru->features = ATA_SMART_AUTOSAVE; | |
1212 | // Enable or disable? | |
1213 | passthru->sector_count = select; | |
1214 | break; | |
1215 | case IMMEDIATE_OFFLINE: | |
1216 | passthru->features = ATA_SMART_IMMEDIATE_OFFLINE; | |
1217 | // What test type to run? | |
1218 | passthru->sector_num = select; | |
1219 | break; | |
1220 | case STATUS_CHECK: | |
1221 | passthru->features = ATA_SMART_STATUS; | |
1222 | break; | |
1223 | case STATUS: | |
1224 | // This is JUST to see if SMART is enabled, by giving SMART status | |
1225 | // command. But it doesn't say if status was good, or failing. | |
1226 | // See below for the difference. | |
1227 | passthru->features = ATA_SMART_STATUS; | |
1228 | break; | |
1229 | default: | |
1230 | pout("Unrecognized command %d in linux_3ware_command_interface(disk %d)\n" | |
1231 | "Please contact " PACKAGE_BUGREPORT "\n", command, disknum); | |
1232 | errno=ENOSYS; | |
1233 | return -1; | |
1234 | } | |
1235 | ||
1236 | // Now send the command down through an ioctl() | |
1237 | if (escalade_type==CONTROLLER_3WARE_9000_CHAR) | |
1238 | ioctlreturn=ioctl(fd, TW_IOCTL_FIRMWARE_PASS_THROUGH, tw_ioctl_apache); | |
1239 | else if (escalade_type==CONTROLLER_3WARE_678K_CHAR) | |
1240 | ioctlreturn=ioctl(fd, TW_CMD_PACKET_WITH_DATA, tw_ioctl_char); | |
1241 | else | |
1242 | ioctlreturn=ioctl(fd, SCSI_IOCTL_SEND_COMMAND, tw_ioctl); | |
a37e7145 | 1243 | |
832b75ed GG |
1244 | // Deal with the different error cases |
1245 | if (ioctlreturn) { | |
1246 | if (CONTROLLER_3WARE_678K==escalade_type && ((command==AUTO_OFFLINE || command==AUTOSAVE) && select)){ | |
1247 | // error here is probably a kernel driver whose version is too old | |
1248 | printwarning(command); | |
1249 | errno=ENOTSUP; | |
1250 | } | |
1251 | if (!errno) | |
1252 | errno=EIO; | |
1253 | return -1; | |
1254 | } | |
a37e7145 | 1255 | |
832b75ed | 1256 | // The passthru structure is valid after return from an ioctl if: |
a37e7145 | 1257 | // - we are using the character interface OR |
832b75ed GG |
1258 | // - we are using the SCSI interface and this is a NON-READ-DATA command |
1259 | // For SCSI interface, note that we set passthru to a different | |
1260 | // value after ioctl(). | |
1261 | if (CONTROLLER_3WARE_678K==escalade_type) { | |
1262 | if (readdata) | |
1263 | passthru=NULL; | |
1264 | else | |
1265 | passthru=(TW_Passthru *)&(tw_output->output_data); | |
1266 | } | |
1267 | ||
1268 | // See if the ATA command failed. Now that we have returned from | |
1269 | // the ioctl() call, if passthru is valid, then: | |
1270 | // - passthru->status contains the 3ware controller STATUS | |
1271 | // - passthru->command contains the ATA STATUS register | |
1272 | // - passthru->features contains the ATA ERROR register | |
1273 | // | |
1274 | // Check bits 0 (error bit) and 5 (device fault) of the ATA STATUS | |
1275 | // If bit 0 (error bit) is set, then ATA ERROR register is valid. | |
1276 | // While we *might* decode the ATA ERROR register, at the moment it | |
1277 | // doesn't make much sense: we don't care in detail why the error | |
1278 | // happened. | |
a37e7145 | 1279 | |
832b75ed GG |
1280 | if (passthru && (passthru->status || (passthru->command & 0x21))) { |
1281 | errno=EIO; | |
1282 | return -1; | |
1283 | } | |
a37e7145 | 1284 | |
832b75ed GG |
1285 | // If this is a read data command, copy data to output buffer |
1286 | if (readdata) { | |
1287 | if (escalade_type==CONTROLLER_3WARE_9000_CHAR) | |
1288 | memcpy(data, (unsigned char *)tw_ioctl_apache->data_buffer, 512); | |
1289 | else if (escalade_type==CONTROLLER_3WARE_678K_CHAR) | |
1290 | memcpy(data, (unsigned char *)tw_ioctl_char->data_buffer, 512); | |
1291 | else | |
1292 | memcpy(data, tw_output->output_data, 512); | |
1293 | } | |
1294 | ||
1295 | // For STATUS_CHECK, we need to check register values | |
1296 | if (command==STATUS_CHECK) { | |
a37e7145 | 1297 | |
832b75ed GG |
1298 | // To find out if the SMART RETURN STATUS is good or failing, we |
1299 | // need to examine the values of the Cylinder Low and Cylinder | |
1300 | // High Registers. | |
a37e7145 | 1301 | |
832b75ed GG |
1302 | unsigned short cyl_lo=passthru->cylinder_lo; |
1303 | unsigned short cyl_hi=passthru->cylinder_hi; | |
a37e7145 | 1304 | |
832b75ed GG |
1305 | // If values in Cyl-LO and Cyl-HI are unchanged, SMART status is good. |
1306 | if (cyl_lo==0x4F && cyl_hi==0xC2) | |
1307 | return 0; | |
a37e7145 | 1308 | |
832b75ed GG |
1309 | // If values in Cyl-LO and Cyl-HI are as follows, SMART status is FAIL |
1310 | if (cyl_lo==0xF4 && cyl_hi==0x2C) | |
1311 | return 1; | |
a37e7145 | 1312 | |
832b75ed GG |
1313 | // Any other values mean that something has gone wrong with the command |
1314 | if (CONTROLLER_3WARE_678K==escalade_type) { | |
1315 | printwarning(command); | |
1316 | errno=ENOSYS; | |
1317 | return 0; | |
1318 | } | |
1319 | else { | |
1320 | errno=EIO; | |
1321 | return -1; | |
1322 | } | |
1323 | } | |
a37e7145 | 1324 | |
832b75ed GG |
1325 | // copy sector count register (one byte!) to return data |
1326 | if (command==CHECK_POWER_MODE) | |
1327 | *data=*(char *)&(passthru->sector_count); | |
a37e7145 | 1328 | |
832b75ed GG |
1329 | // look for nonexistent devices/ports |
1330 | if (command==IDENTIFY && !nonempty((unsigned char *)data, 512)) { | |
1331 | errno=ENODEV; | |
1332 | return -1; | |
1333 | } | |
a37e7145 | 1334 | |
832b75ed GG |
1335 | return 0; |
1336 | } | |
1337 | ||
1338 | ||
1339 | ||
a37e7145 GG |
1340 | int marvell_command_interface(int device, |
1341 | smart_command_set command, | |
1342 | int select, | |
1343 | char *data) { | |
1344 | typedef struct { | |
832b75ed GG |
1345 | int inlen; |
1346 | int outlen; | |
1347 | char cmd[540]; | |
1348 | } mvsata_scsi_cmd; | |
a37e7145 | 1349 | |
832b75ed GG |
1350 | int copydata = 0; |
1351 | mvsata_scsi_cmd smart_command; | |
1352 | unsigned char *buff = (unsigned char *)&smart_command.cmd[6]; | |
1353 | // See struct hd_drive_cmd_hdr in hdreg.h | |
1354 | // buff[0]: ATA COMMAND CODE REGISTER | |
1355 | // buff[1]: ATA SECTOR NUMBER REGISTER | |
1356 | // buff[2]: ATA FEATURES REGISTER | |
1357 | // buff[3]: ATA SECTOR COUNT REGISTER | |
a37e7145 | 1358 | |
832b75ed GG |
1359 | // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes) |
1360 | memset(&smart_command, 0, sizeof(smart_command)); | |
1361 | smart_command.inlen = 540; | |
1362 | smart_command.outlen = 540; | |
1363 | smart_command.cmd[0] = 0xC; //Vendor-specific code | |
1364 | smart_command.cmd[4] = 6; //command length | |
a37e7145 | 1365 | |
832b75ed GG |
1366 | buff[0] = ATA_SMART_CMD; |
1367 | switch (command){ | |
1368 | case CHECK_POWER_MODE: | |
1369 | buff[0]=ATA_CHECK_POWER_MODE; | |
1370 | break; | |
1371 | case READ_VALUES: | |
1372 | buff[2]=ATA_SMART_READ_VALUES; | |
1373 | copydata=buff[3]=1; | |
1374 | break; | |
1375 | case READ_THRESHOLDS: | |
1376 | buff[2]=ATA_SMART_READ_THRESHOLDS; | |
1377 | copydata=buff[1]=buff[3]=1; | |
1378 | break; | |
1379 | case READ_LOG: | |
1380 | buff[2]=ATA_SMART_READ_LOG_SECTOR; | |
1381 | buff[1]=select; | |
1382 | copydata=buff[3]=1; | |
1383 | break; | |
1384 | case IDENTIFY: | |
1385 | buff[0]=ATA_IDENTIFY_DEVICE; | |
1386 | copydata=buff[3]=1; | |
1387 | break; | |
1388 | case PIDENTIFY: | |
1389 | buff[0]=ATA_IDENTIFY_PACKET_DEVICE; | |
1390 | copydata=buff[3]=1; | |
1391 | break; | |
1392 | case ENABLE: | |
1393 | buff[2]=ATA_SMART_ENABLE; | |
1394 | buff[1]=1; | |
1395 | break; | |
1396 | case DISABLE: | |
1397 | buff[2]=ATA_SMART_DISABLE; | |
1398 | buff[1]=1; | |
1399 | break; | |
1400 | case STATUS: | |
1401 | case STATUS_CHECK: | |
1402 | // this command only says if SMART is working. It could be | |
1403 | // replaced with STATUS_CHECK below. | |
1404 | buff[2] = ATA_SMART_STATUS; | |
1405 | break; | |
1406 | case AUTO_OFFLINE: | |
1407 | buff[2]=ATA_SMART_AUTO_OFFLINE; | |
1408 | buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! | |
1409 | break; | |
1410 | case AUTOSAVE: | |
1411 | buff[2]=ATA_SMART_AUTOSAVE; | |
1412 | buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! | |
1413 | break; | |
1414 | case IMMEDIATE_OFFLINE: | |
1415 | buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; | |
1416 | buff[1]=select; | |
1417 | break; | |
1418 | default: | |
1419 | pout("Unrecognized command %d in mvsata_os_specific_handler()\n", command); | |
1420 | exit(1); | |
1421 | break; | |
a37e7145 | 1422 | } |
832b75ed GG |
1423 | // There are two different types of ioctls(). The HDIO_DRIVE_TASK |
1424 | // one is this: | |
1425 | // We are now doing the HDIO_DRIVE_CMD type ioctl. | |
1426 | if (ioctl(device, SCSI_IOCTL_SEND_COMMAND, (void *)&smart_command)) | |
1427 | return -1; | |
1428 | ||
1429 | if (command==CHECK_POWER_MODE) { | |
1430 | // LEON -- CHECK THIS PLEASE. THIS SHOULD BE THE SECTOR COUNT | |
1431 | // REGISTER, AND IT MIGHT BE buff[2] NOT buff[3]. Bruce | |
1432 | data[0]=buff[3]; | |
1433 | return 0; | |
1434 | } | |
1435 | ||
a37e7145 | 1436 | // Always succeed on a SMART status, as a disk that failed returned |
832b75ed GG |
1437 | // buff[4]=0xF4, buff[5]=0x2C, i.e. "Bad SMART status" (see below). |
1438 | if (command == STATUS) | |
1439 | return 0; | |
a37e7145 | 1440 | //Data returned is starting from 0 offset |
832b75ed GG |
1441 | if (command == STATUS_CHECK) |
1442 | { | |
1443 | // Cyl low and Cyl high unchanged means "Good SMART status" | |
1444 | if (buff[4] == 0x4F && buff[5] == 0xC2) | |
a37e7145 | 1445 | return 0; |
832b75ed GG |
1446 | // These values mean "Bad SMART status" |
1447 | if (buff[4] == 0xF4 && buff[5] == 0x2C) | |
a37e7145 | 1448 | return 1; |
832b75ed GG |
1449 | // We haven't gotten output that makes sense; print out some debugging info |
1450 | syserror("Error SMART Status command failed"); | |
1451 | pout("Please get assistance from %s\n",PACKAGE_BUGREPORT); | |
1452 | pout("Register values returned from SMART Status command are:\n"); | |
1453 | pout("CMD =0x%02x\n",(int)buff[0]); | |
1454 | pout("FR =0x%02x\n",(int)buff[1]); | |
1455 | pout("NS =0x%02x\n",(int)buff[2]); | |
1456 | pout("SC =0x%02x\n",(int)buff[3]); | |
1457 | pout("CL =0x%02x\n",(int)buff[4]); | |
1458 | pout("CH =0x%02x\n",(int)buff[5]); | |
1459 | pout("SEL=0x%02x\n",(int)buff[6]); | |
a37e7145 GG |
1460 | return -1; |
1461 | } | |
832b75ed GG |
1462 | |
1463 | if (copydata) | |
1464 | memcpy(data, buff, 512); | |
a37e7145 | 1465 | return 0; |
832b75ed GG |
1466 | } |
1467 | ||
4d59bff9 GG |
1468 | // this implementation is derived from ata_command_interface with a header |
1469 | // packing for highpoint linux driver ioctl interface | |
a37e7145 | 1470 | // |
4d59bff9 GG |
1471 | // ioctl(fd,HPTIO_CTL,buff) |
1472 | // ^^^^^^^^^ | |
1473 | // | |
1474 | // structure of hpt_buff | |
1475 | // +----+----+----+----+--------------------.....---------------------+ | |
1476 | // | 1 | 2 | 3 | 4 | 5 | | |
1477 | // +----+----+----+----+--------------------.....---------------------+ | |
a37e7145 | 1478 | // |
4d59bff9 GG |
1479 | // 1: The target controller [ int ( 4 Bytes ) ] |
1480 | // 2: The channel of the target controllee [ int ( 4 Bytes ) ] | |
1481 | // 3: HDIO_ ioctl call [ int ( 4 Bytes ) ] | |
1482 | // available from ${LINUX_KERNEL_SOURCE}/Documentation/ioctl/hdio | |
1483 | // 4: the pmport that disk attached, [ int ( 4 Bytes ) ] | |
1484 | // if no pmport device, set to 1 or leave blank | |
1485 | // 5: data [ void * ( var leangth ) ] | |
a37e7145 GG |
1486 | // |
1487 | #define STRANGE_BUFFER_LENGTH (4+512*0xf8) | |
1488 | ||
4d59bff9 GG |
1489 | int highpoint_command_interface(int device, smart_command_set command, |
1490 | int select, char *data) | |
a37e7145 GG |
1491 | |
1492 | ||
4d59bff9 GG |
1493 | { |
1494 | unsigned char hpt_buff[4*sizeof(int) + STRANGE_BUFFER_LENGTH]; | |
1495 | unsigned int *hpt = (unsigned int *)hpt_buff; | |
1496 | unsigned char *buff = &hpt_buff[4*sizeof(int)]; | |
1497 | int copydata = 0; | |
1498 | const int HDIO_DRIVE_CMD_OFFSET = 4; | |
1499 | ||
1500 | memset(hpt_buff, 0, 4*sizeof(int) + STRANGE_BUFFER_LENGTH); | |
1501 | hpt[0] = con->hpt_data[0]; // controller id | |
1502 | hpt[1] = con->hpt_data[1]; // channel number | |
1503 | hpt[3] = con->hpt_data[2]; // pmport number | |
1504 | ||
1505 | buff[0]=ATA_SMART_CMD; | |
1506 | switch (command){ | |
1507 | case CHECK_POWER_MODE: | |
1508 | buff[0]=ATA_CHECK_POWER_MODE; | |
1509 | copydata=1; | |
1510 | break; | |
1511 | case READ_VALUES: | |
1512 | buff[2]=ATA_SMART_READ_VALUES; | |
1513 | buff[3]=1; | |
1514 | copydata=512; | |
1515 | break; | |
1516 | case READ_THRESHOLDS: | |
1517 | buff[2]=ATA_SMART_READ_THRESHOLDS; | |
1518 | buff[1]=buff[3]=1; | |
1519 | copydata=512; | |
1520 | break; | |
1521 | case READ_LOG: | |
1522 | buff[2]=ATA_SMART_READ_LOG_SECTOR; | |
1523 | buff[1]=select; | |
1524 | buff[3]=1; | |
1525 | copydata=512; | |
1526 | break; | |
1527 | case WRITE_LOG: | |
1528 | break; | |
1529 | case IDENTIFY: | |
1530 | buff[0]=ATA_IDENTIFY_DEVICE; | |
1531 | buff[3]=1; | |
1532 | copydata=512; | |
1533 | break; | |
1534 | case PIDENTIFY: | |
1535 | buff[0]=ATA_IDENTIFY_PACKET_DEVICE; | |
1536 | buff[3]=1; | |
1537 | copydata=512; | |
1538 | break; | |
1539 | case ENABLE: | |
1540 | buff[2]=ATA_SMART_ENABLE; | |
1541 | buff[1]=1; | |
1542 | break; | |
1543 | case DISABLE: | |
1544 | buff[2]=ATA_SMART_DISABLE; | |
1545 | buff[1]=1; | |
1546 | break; | |
1547 | case STATUS: | |
1548 | buff[2]=ATA_SMART_STATUS; | |
1549 | break; | |
1550 | case AUTO_OFFLINE: | |
1551 | buff[2]=ATA_SMART_AUTO_OFFLINE; | |
1552 | buff[3]=select; | |
1553 | break; | |
1554 | case AUTOSAVE: | |
1555 | buff[2]=ATA_SMART_AUTOSAVE; | |
1556 | buff[3]=select; | |
1557 | break; | |
1558 | case IMMEDIATE_OFFLINE: | |
1559 | buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; | |
1560 | buff[1]=select; | |
1561 | break; | |
1562 | case STATUS_CHECK: | |
1563 | buff[1]=ATA_SMART_STATUS; | |
1564 | break; | |
1565 | default: | |
1566 | pout("Unrecognized command %d in linux_highpoint_command_interface()\n" | |
1567 | "Please contact " PACKAGE_BUGREPORT "\n", command); | |
1568 | errno=ENOSYS; | |
1569 | return -1; | |
1570 | } | |
1571 | ||
1572 | if (command==WRITE_LOG) { | |
1573 | unsigned char task[4*sizeof(int)+sizeof(ide_task_request_t)+512]; | |
1574 | unsigned int *hpt = (unsigned int *)task; | |
1575 | ide_task_request_t *reqtask = (ide_task_request_t *)(&task[4*sizeof(int)]); | |
1576 | task_struct_t *taskfile = (task_struct_t *)reqtask->io_ports; | |
1577 | int retval; | |
1578 | ||
1579 | memset(task, 0, sizeof(task)); | |
1580 | ||
1581 | hpt[0] = con->hpt_data[0]; // controller id | |
1582 | hpt[1] = con->hpt_data[1]; // channel number | |
1583 | hpt[3] = con->hpt_data[2]; // pmport number | |
1584 | hpt[2] = HDIO_DRIVE_TASKFILE; // real hd ioctl | |
1585 | ||
1586 | taskfile->data = 0; | |
1587 | taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR; | |
1588 | taskfile->sector_count = 1; | |
1589 | taskfile->sector_number = select; | |
1590 | taskfile->low_cylinder = 0x4f; | |
1591 | taskfile->high_cylinder = 0xc2; | |
1592 | taskfile->device_head = 0; | |
1593 | taskfile->command = ATA_SMART_CMD; | |
a37e7145 | 1594 | |
4d59bff9 GG |
1595 | reqtask->data_phase = TASKFILE_OUT; |
1596 | reqtask->req_cmd = IDE_DRIVE_TASK_OUT; | |
1597 | reqtask->out_size = 512; | |
1598 | reqtask->in_size = 0; | |
a37e7145 | 1599 | |
4d59bff9 GG |
1600 | memcpy(task+sizeof(ide_task_request_t)+4*sizeof(int), data, 512); |
1601 | ||
1602 | if ((retval=ioctl(device, HPTIO_CTL, task))) { | |
1603 | if (retval==-EINVAL) | |
1604 | pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n"); | |
1605 | return -1; | |
1606 | } | |
1607 | return 0; | |
1608 | } | |
a37e7145 | 1609 | |
4d59bff9 GG |
1610 | if (command==STATUS_CHECK){ |
1611 | int retval; | |
1612 | unsigned const char normal_lo=0x4f, normal_hi=0xc2; | |
1613 | unsigned const char failed_lo=0xf4, failed_hi=0x2c; | |
1614 | buff[4]=normal_lo; | |
1615 | buff[5]=normal_hi; | |
1616 | ||
1617 | hpt[2] = HDIO_DRIVE_TASK; | |
1618 | ||
1619 | if ((retval=ioctl(device, HPTIO_CTL, hpt_buff))) { | |
1620 | if (retval==-EINVAL) { | |
1621 | pout("Error SMART Status command via HDIO_DRIVE_TASK failed"); | |
1622 | pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n"); | |
1623 | } | |
1624 | else | |
1625 | syserror("Error SMART Status command failed"); | |
1626 | return -1; | |
1627 | } | |
a37e7145 | 1628 | |
4d59bff9 GG |
1629 | if (buff[4]==normal_lo && buff[5]==normal_hi) |
1630 | return 0; | |
a37e7145 | 1631 | |
4d59bff9 GG |
1632 | if (buff[4]==failed_lo && buff[5]==failed_hi) |
1633 | return 1; | |
a37e7145 | 1634 | |
4d59bff9 GG |
1635 | syserror("Error SMART Status command failed"); |
1636 | pout("Please get assistance from " PACKAGE_HOMEPAGE "\n"); | |
1637 | pout("Register values returned from SMART Status command are:\n"); | |
1638 | pout("CMD=0x%02x\n",(int)buff[0]); | |
1639 | pout("FR =0x%02x\n",(int)buff[1]); | |
1640 | pout("NS =0x%02x\n",(int)buff[2]); | |
1641 | pout("SC =0x%02x\n",(int)buff[3]); | |
1642 | pout("CL =0x%02x\n",(int)buff[4]); | |
1643 | pout("CH =0x%02x\n",(int)buff[5]); | |
1644 | pout("SEL=0x%02x\n",(int)buff[6]); | |
a37e7145 | 1645 | return -1; |
4d59bff9 | 1646 | } |
a37e7145 | 1647 | |
4d59bff9 GG |
1648 | #if 1 |
1649 | if (command==IDENTIFY || command==PIDENTIFY) { | |
1650 | unsigned char deviceid[4*sizeof(int)+512*sizeof(char)]; | |
1651 | unsigned int *hpt = (unsigned int *)deviceid; | |
1652 | ||
1653 | hpt[0] = con->hpt_data[0]; // controller id | |
1654 | hpt[1] = con->hpt_data[1]; // channel number | |
1655 | hpt[3] = con->hpt_data[2]; // pmport number | |
1656 | ||
1657 | hpt[2] = HDIO_GET_IDENTITY; | |
1658 | if (!ioctl(device, HPTIO_CTL, deviceid) && (deviceid[4*sizeof(int)] & 0x8000)) | |
1659 | buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE; | |
1660 | } | |
1661 | #endif | |
a37e7145 | 1662 | |
4d59bff9 GG |
1663 | hpt[2] = HDIO_DRIVE_CMD; |
1664 | if ((ioctl(device, HPTIO_CTL, hpt_buff))) | |
1665 | return -1; | |
1666 | ||
1667 | if (command==CHECK_POWER_MODE) | |
1668 | buff[HDIO_DRIVE_CMD_OFFSET]=buff[2]; | |
1669 | ||
1670 | if (copydata) | |
1671 | memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata); | |
a37e7145 GG |
1672 | |
1673 | return 0; | |
4d59bff9 GG |
1674 | } |
1675 | ||
832b75ed GG |
1676 | |
1677 | // Utility function for printing warnings | |
1678 | void printwarning(smart_command_set command){ | |
1679 | static int printed[4]={0,0,0,0}; | |
1680 | const char* message= | |
1681 | "can not be passed through the 3ware 3w-xxxx driver. This can be fixed by\n" | |
1682 | "applying a simple 3w-xxxx driver patch that can be found here:\n" | |
1683 | PACKAGE_HOMEPAGE "\n" | |
1684 | "Alternatively, upgrade your 3w-xxxx driver to version 1.02.00.037 or greater.\n\n"; | |
1685 | ||
1686 | if (command==AUTO_OFFLINE && !printed[0]) { | |
1687 | printed[0]=1; | |
1688 | pout("The SMART AUTO-OFFLINE ENABLE command (smartmontools -o on option/Directive)\n%s", message); | |
a37e7145 | 1689 | } |
832b75ed GG |
1690 | else if (command==AUTOSAVE && !printed[1]) { |
1691 | printed[1]=1; | |
1692 | pout("The SMART AUTOSAVE ENABLE command (smartmontools -S on option/Directive)\n%s", message); | |
1693 | } | |
1694 | else if (command==STATUS_CHECK && !printed[2]) { | |
1695 | printed[2]=1; | |
1696 | pout("The SMART RETURN STATUS return value (smartmontools -H option/Directive)\n%s", message); | |
1697 | } | |
1698 | else if (command==WRITE_LOG && !printed[3]) { | |
1699 | printed[3]=1; | |
1700 | pout("The SMART WRITE LOG command (smartmontools -t selective) only supported via char /dev/tw[ae] interface\n"); | |
1701 | } | |
a37e7145 | 1702 | |
832b75ed GG |
1703 | return; |
1704 | } | |
1705 | ||
1706 | // Guess device type (ata or scsi) based on device name (Linux | |
1707 | // specific) SCSI device name in linux can be sd, sr, scd, st, nst, | |
1708 | // osst, nosst and sg. | |
1709 | static const char * lin_dev_prefix = "/dev/"; | |
1710 | static const char * lin_dev_ata_disk_plus = "h"; | |
1711 | static const char * lin_dev_ata_devfs_disk_plus = "ide/"; | |
1712 | static const char * lin_dev_scsi_devfs_disk_plus = "scsi/"; | |
1713 | static const char * lin_dev_scsi_disk_plus = "s"; | |
1714 | static const char * lin_dev_scsi_tape1 = "ns"; | |
1715 | static const char * lin_dev_scsi_tape2 = "os"; | |
1716 | static const char * lin_dev_scsi_tape3 = "nos"; | |
1717 | static const char * lin_dev_3ware_9000_char = "twa"; | |
1718 | static const char * lin_dev_3ware_678k_char = "twe"; | |
ba59cff1 | 1719 | static const char * lin_dev_cciss_dir = "cciss/"; |
832b75ed GG |
1720 | |
1721 | int guess_device_type(const char * dev_name) { | |
1722 | int len; | |
1723 | int dev_prefix_len = strlen(lin_dev_prefix); | |
a37e7145 | 1724 | |
832b75ed GG |
1725 | // if dev_name null, or string length zero |
1726 | if (!dev_name || !(len = strlen(dev_name))) | |
1727 | return CONTROLLER_UNKNOWN; | |
a37e7145 | 1728 | |
832b75ed GG |
1729 | // Remove the leading /dev/... if it's there |
1730 | if (!strncmp(lin_dev_prefix, dev_name, dev_prefix_len)) { | |
1731 | if (len <= dev_prefix_len) | |
1732 | // if nothing else in the string, unrecognized | |
1733 | return CONTROLLER_UNKNOWN; | |
1734 | // else advance pointer to following characters | |
1735 | dev_name += dev_prefix_len; | |
1736 | } | |
a37e7145 | 1737 | |
832b75ed GG |
1738 | // form /dev/h* or h* |
1739 | if (!strncmp(lin_dev_ata_disk_plus, dev_name, | |
1740 | strlen(lin_dev_ata_disk_plus))) | |
1741 | return CONTROLLER_ATA; | |
a37e7145 | 1742 | |
832b75ed GG |
1743 | // form /dev/ide/* or ide/* |
1744 | if (!strncmp(lin_dev_ata_devfs_disk_plus, dev_name, | |
1745 | strlen(lin_dev_ata_devfs_disk_plus))) | |
1746 | return CONTROLLER_ATA; | |
1747 | ||
1748 | // form /dev/s* or s* | |
1749 | if (!strncmp(lin_dev_scsi_disk_plus, dev_name, | |
1750 | strlen(lin_dev_scsi_disk_plus))) | |
1751 | return CONTROLLER_SCSI; | |
1752 | ||
1753 | // form /dev/scsi/* or scsi/* | |
1754 | if (!strncmp(lin_dev_scsi_devfs_disk_plus, dev_name, | |
1755 | strlen(lin_dev_scsi_devfs_disk_plus))) | |
1756 | return CONTROLLER_SCSI; | |
a37e7145 | 1757 | |
832b75ed GG |
1758 | // form /dev/ns* or ns* |
1759 | if (!strncmp(lin_dev_scsi_tape1, dev_name, | |
1760 | strlen(lin_dev_scsi_tape1))) | |
1761 | return CONTROLLER_SCSI; | |
a37e7145 | 1762 | |
832b75ed GG |
1763 | // form /dev/os* or os* |
1764 | if (!strncmp(lin_dev_scsi_tape2, dev_name, | |
1765 | strlen(lin_dev_scsi_tape2))) | |
1766 | return CONTROLLER_SCSI; | |
a37e7145 | 1767 | |
832b75ed GG |
1768 | // form /dev/nos* or nos* |
1769 | if (!strncmp(lin_dev_scsi_tape3, dev_name, | |
1770 | strlen(lin_dev_scsi_tape3))) | |
1771 | return CONTROLLER_SCSI; | |
1772 | ||
1773 | // form /dev/twa* | |
1774 | if (!strncmp(lin_dev_3ware_9000_char, dev_name, | |
1775 | strlen(lin_dev_3ware_9000_char))) | |
1776 | return CONTROLLER_3WARE_9000_CHAR; | |
1777 | ||
1778 | // form /dev/twe* | |
1779 | if (!strncmp(lin_dev_3ware_678k_char, dev_name, | |
1780 | strlen(lin_dev_3ware_678k_char))) | |
1781 | return CONTROLLER_3WARE_678K_CHAR; | |
ba59cff1 GG |
1782 | // form /dev/cciss* |
1783 | if (!strncmp(lin_dev_cciss_dir, dev_name, | |
1784 | strlen(lin_dev_cciss_dir))) | |
1785 | return CONTROLLER_CCISS; | |
832b75ed GG |
1786 | |
1787 | // we failed to recognize any of the forms | |
1788 | return CONTROLLER_UNKNOWN; | |
1789 | } | |
1790 | ||
1791 | ||
1792 | #if 0 | |
1793 | ||
1794 | [ed@firestorm ed]$ ls -l /dev/discs | |
1795 | total 0 | |
1796 | lr-xr-xr-x 1 root root 30 Dec 31 1969 disc0 -> ../ide/host2/bus0/target0/lun0/ | |
1797 | lr-xr-xr-x 1 root root 30 Dec 31 1969 disc1 -> ../ide/host2/bus1/target0/lun0/ | |
1798 | [ed@firestorm ed]$ ls -l dev/ide/host*/bus*/target*/lun*/disc | |
1799 | ls: dev/ide/host*/bus*/target*/lun*/disc: No such file or directory | |
1800 | [ed@firestorm ed]$ ls -l /dev/ide/host*/bus*/target*/lun*/disc | |
1801 | brw------- 1 root root 33, 0 Dec 31 1969 /dev/ide/host2/bus0/target0/lun0/disc | |
1802 | brw------- 1 root root 34, 0 Dec 31 1969 /dev/ide/host2/bus1/target0/lun0/disc | |
1803 | [ed@firestorm ed]$ ls -l /dev/ide/c*b*t*u* | |
1804 | ls: /dev/ide/c*b*t*u*: No such file or directory | |
a37e7145 | 1805 | [ed@firestorm ed]$ |
832b75ed GG |
1806 | Script done on Fri Nov 7 13:46:28 2003 |
1807 | ||
1808 | #endif |