]>
Commit | Line | Data |
---|---|---|
832b75ed GG |
1 | /* |
2 | * os_linux.c | |
3 | * | |
4 | * Home page of code is: http://smartmontools.sourceforge.net | |
5 | * | |
6 | * Copyright (C) 2003-6 Bruce Allen <smartmontools-support@lists.sourceforge.net> | |
7 | * Copyright (C) 2003-6 Doug Gilbert <dougg@torque.net> | |
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 | |
22 | * | |
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/ | |
39 | * | |
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 | ||
47 | #include <errno.h> | |
48 | #include <fcntl.h> | |
49 | #include <glob.h> | |
ba59cff1 GG |
50 | |
51 | #ifdef HAVE_LINUX_COMPILER_H | |
52 | #include <linux/compiler.h> | |
53 | #endif | |
54 | ||
832b75ed GG |
55 | #include <scsi/scsi_ioctl.h> |
56 | #include <scsi/sg.h> | |
57 | #include <stdlib.h> | |
58 | #include <string.h> | |
59 | #include <sys/ioctl.h> | |
60 | #include <sys/stat.h> | |
61 | #include <unistd.h> | |
62 | #ifndef makedev // old versions of types.h do not include sysmacros.h | |
63 | #include <sys/sysmacros.h> | |
64 | #endif | |
65 | ||
66 | #include "config.h" | |
67 | #include "int64.h" | |
68 | #include "atacmds.h" | |
4d59bff9 GG |
69 | #include "extern.h" |
70 | extern smartmonctrl * con; | |
832b75ed GG |
71 | #include "os_linux.h" |
72 | #include "scsicmds.h" | |
73 | #include "utility.h" | |
ba59cff1 GG |
74 | #include "extern.h" |
75 | ||
76 | #include <linux/cciss_ioctl.h> | |
77 | ||
832b75ed GG |
78 | |
79 | #ifndef ENOTSUP | |
80 | #define ENOTSUP ENOSYS | |
81 | #endif | |
82 | typedef unsigned long long u8; | |
83 | ||
ba59cff1 | 84 | |
832b75ed GG |
85 | #define ARGUSED(x) ((void)(x)) |
86 | ||
ba59cff1 | 87 | static const char *filenameandversion="$Id: os_linux.cpp,v 1.88 2006/10/25 17:01:42 ballen4705 Exp $"; |
832b75ed | 88 | |
ba59cff1 | 89 | const char *os_XXXX_c_cvsid="$Id: os_linux.cpp,v 1.88 2006/10/25 17:01:42 ballen4705 Exp $" \ |
832b75ed GG |
90 | ATACMDS_H_CVSID CONFIG_H_CVSID INT64_H_CVSID OS_LINUX_H_CVSID SCSICMDS_H_CVSID UTILITY_H_CVSID; |
91 | ||
92 | // to hold onto exit code for atexit routine | |
93 | extern int exitstatus; | |
94 | ||
95 | // global variable holding byte count of allocated memory | |
96 | extern long long bytes; | |
97 | ||
ba59cff1 GG |
98 | /* for passing global control variables */ |
99 | extern smartmonctrl *con; | |
100 | ||
101 | static int cciss_io_interface(int device, int target, | |
102 | struct scsi_cmnd_io * iop, int report); | |
103 | ||
104 | typedef struct _ReportLUNdata_struct | |
105 | { | |
106 | BYTE LUNListLength[4]; | |
107 | DWORD reserved; | |
108 | BYTE LUN[CISS_MAX_LUN][8]; | |
109 | } ReportLunData_struct; | |
110 | ||
111 | /* Structure/defines of Report Physical LUNS of drive */ | |
112 | #define CISS_MAX_LUN 16 | |
113 | #define CISS_MAX_PHYS_LUN 1024 | |
114 | #define CISS_REPORT_PHYS 0xc3 | |
832b75ed GG |
115 | |
116 | ||
117 | /* This function will setup and fix device nodes for a 3ware controller. */ | |
118 | #define MAJOR_STRING_LENGTH 3 | |
119 | #define DEVICE_STRING_LENGTH 32 | |
120 | #define NODE_STRING_LENGTH 16 | |
121 | int setup_3ware_nodes(char *nodename, char *driver_name) { | |
122 | int tw_major = 0; | |
123 | int index = 0; | |
124 | char majorstring[MAJOR_STRING_LENGTH+1]; | |
125 | char device_name[DEVICE_STRING_LENGTH+1]; | |
126 | char nodestring[NODE_STRING_LENGTH]; | |
127 | struct stat stat_buf; | |
128 | FILE *file; | |
129 | ||
130 | /* First try to open up /proc/devices */ | |
131 | if (!(file = fopen("/proc/devices", "r"))) { | |
132 | pout("Error opening /proc/devices to check/create 3ware device nodes\n"); | |
133 | syserror("fopen"); | |
134 | return 0; // don't fail here: user might not have /proc ! | |
135 | } | |
136 | ||
137 | /* Attempt to get device major number */ | |
138 | while (EOF != fscanf(file, "%3s %32s", majorstring, device_name)) { | |
139 | majorstring[MAJOR_STRING_LENGTH]='\0'; | |
140 | device_name[DEVICE_STRING_LENGTH]='\0'; | |
141 | if (!strncmp(device_name, nodename, DEVICE_STRING_LENGTH)) { | |
142 | tw_major = atoi(majorstring); | |
143 | break; | |
144 | } | |
145 | } | |
146 | fclose(file); | |
147 | ||
148 | /* See if we found a major device number */ | |
149 | if (!tw_major) { | |
150 | pout("No major number for /dev/%s listed in /proc/devices. Is the %s driver loaded?\n", nodename, driver_name); | |
151 | return 2; | |
152 | } | |
153 | ||
154 | /* Now check if nodes are correct */ | |
155 | for (index=0; index<16; index++) { | |
156 | sprintf(nodestring, "/dev/%s%d", nodename, index); | |
4d59bff9 | 157 | |
832b75ed GG |
158 | /* Try to stat the node */ |
159 | if ((stat(nodestring, &stat_buf))) { | |
160 | /* Create a new node if it doesn't exist */ | |
161 | if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) { | |
4d59bff9 GG |
162 | pout("problem creating 3ware device nodes %s", nodestring); |
163 | syserror("mknod"); | |
164 | return 3; | |
832b75ed GG |
165 | } |
166 | } | |
167 | ||
168 | /* See if nodes major and minor numbers are correct */ | |
169 | if ((tw_major != (int)(major(stat_buf.st_rdev))) || | |
4d59bff9 GG |
170 | (index != (int)(minor(stat_buf.st_rdev))) || |
171 | (!S_ISCHR(stat_buf.st_mode))) { | |
832b75ed GG |
172 | |
173 | /* Delete the old node */ | |
174 | if (unlink(nodestring)) { | |
4d59bff9 GG |
175 | pout("problem unlinking stale 3ware device node %s", nodestring); |
176 | syserror("unlink"); | |
177 | return 4; | |
832b75ed GG |
178 | } |
179 | ||
180 | /* Make a new node */ | |
181 | if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) { | |
4d59bff9 GG |
182 | pout("problem creating 3ware device nodes %s", nodestring); |
183 | syserror("mknod"); | |
184 | return 5; | |
832b75ed GG |
185 | } |
186 | } | |
187 | } | |
188 | return 0; | |
189 | } | |
190 | ||
191 | // equivalent to open(path, flags) | |
192 | int deviceopen(const char *pathname, char *type){ | |
193 | if (!strcmp(type,"SCSI")) { | |
194 | int fd = open(pathname, O_RDWR | O_NONBLOCK); | |
195 | if (fd < 0 && errno == EROFS) | |
196 | fd = open(pathname, O_RDONLY | O_NONBLOCK); | |
197 | return fd; | |
198 | } | |
199 | else if (!strcmp(type,"ATA")) | |
200 | return open(pathname, O_RDONLY | O_NONBLOCK); | |
201 | else if (!strcmp(type,"ATA_3WARE_9000")) { | |
202 | // the device nodes for this controller are dynamically assigned, | |
203 | // so we need to check that they exist with the correct major | |
204 | // numbers and if not, create them | |
205 | if (setup_3ware_nodes("twa", "3w-9xxx")) { | |
206 | if (!errno) | |
4d59bff9 | 207 | errno=ENXIO; |
832b75ed GG |
208 | return -1; |
209 | } | |
210 | return open(pathname, O_RDONLY | O_NONBLOCK); | |
211 | } | |
212 | else if (!strcmp(type,"ATA_3WARE_678K")) { | |
213 | // the device nodes for this controller are dynamically assigned, | |
214 | // so we need to check that they exist with the correct major | |
215 | // numbers and if not, create them | |
216 | if (setup_3ware_nodes("twe", "3w-xxxx")) { | |
217 | if (!errno) | |
4d59bff9 | 218 | errno=ENXIO; |
832b75ed GG |
219 | return -1; |
220 | } | |
221 | return open(pathname, O_RDONLY | O_NONBLOCK); | |
222 | } | |
ba59cff1 GG |
223 | else if(!strcmp(type, "CCISS")) { |
224 | // the device is a cciss smart array device. | |
225 | return open(pathname, O_RDWR | O_NONBLOCK); | |
226 | } | |
832b75ed GG |
227 | else |
228 | return -1; | |
ba59cff1 | 229 | |
832b75ed GG |
230 | } |
231 | ||
232 | // equivalent to close(file descriptor) | |
233 | int deviceclose(int fd){ | |
234 | return close(fd); | |
235 | } | |
236 | ||
237 | // print examples for smartctl | |
238 | void print_smartctl_examples(){ | |
239 | printf("=================================================== SMARTCTL EXAMPLES =====\n\n"); | |
240 | #ifdef HAVE_GETOPT_LONG | |
241 | printf( | |
242 | " smartctl --all /dev/hda (Prints all SMART information)\n\n" | |
243 | " smartctl --smart=on --offlineauto=on --saveauto=on /dev/hda\n" | |
244 | " (Enables SMART on first disk)\n\n" | |
245 | " smartctl --test=long /dev/hda (Executes extended disk self-test)\n\n" | |
246 | " smartctl --attributes --log=selftest --quietmode=errorsonly /dev/hda\n" | |
247 | " (Prints Self-Test & Attribute errors)\n" | |
248 | " smartctl --all --device=3ware,2 /dev/sda\n" | |
249 | " smartctl --all --device=3ware,2 /dev/twe0\n" | |
250 | " smartctl --all --device=3ware,2 /dev/twa0\n" | |
251 | " (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n" | |
4d59bff9 GG |
252 | " smartctl --all --device=hpt,1/1/3 /dev/sda\n" |
253 | " (Prints all SMART info for the SATA disk attached to the 3rd PMPort\n" | |
254 | " of the 1st channel on the 1st HighPoint RAID controller)\n" | |
832b75ed GG |
255 | ); |
256 | #else | |
257 | printf( | |
258 | " smartctl -a /dev/hda (Prints all SMART information)\n" | |
259 | " smartctl -s on -o on -S on /dev/hda (Enables SMART on first disk)\n" | |
260 | " smartctl -t long /dev/hda (Executes extended disk self-test)\n" | |
261 | " smartctl -A -l selftest -q errorsonly /dev/hda\n" | |
262 | " (Prints Self-Test & Attribute errors)\n" | |
263 | " smartctl -a -d 3ware,2 /dev/sda\n" | |
264 | " smartctl -a -d 3ware,2 /dev/twa0\n" | |
265 | " smartctl -a -d 3ware,2 /dev/twe0\n" | |
266 | " (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n" | |
4d59bff9 GG |
267 | " smartctl -a -d hpt,1/1/3 /dev/sda\n" |
268 | " (Prints all SMART info for the SATA disk attached to the 3rd PMPort\n" | |
269 | " of the 1st channel on the 1st HighPoint RAID controller)\n" | |
832b75ed GG |
270 | ); |
271 | #endif | |
272 | return; | |
273 | } | |
274 | ||
275 | ||
276 | // we are going to take advantage of the fact that Linux's devfs will only | |
277 | // have device entries for devices that exist. So if we get the equivalent of | |
278 | // ls /dev/hd[a-t], we have all the ATA devices on the system | |
279 | // | |
280 | // If any errors occur, leave errno set as it was returned by the | |
281 | // system call, and return <0. | |
282 | int get_dev_names(char*** names, const char* pattern, const char* name, int max) { | |
283 | int n = 0, retglob, i, lim; | |
284 | char** mp; | |
285 | glob_t globbuf; | |
286 | ||
287 | memset(&globbuf, 0, sizeof(globbuf)); | |
288 | ||
289 | // in case of non-clean exit | |
290 | *names=NULL; | |
291 | ||
292 | // Use glob to look for any directory entries matching the pattern | |
293 | if ((retglob=glob(pattern, GLOB_ERR, NULL, &globbuf))) { | |
294 | ||
295 | // glob failed: free memory and return | |
296 | globfree(&globbuf); | |
297 | ||
298 | if (retglob==GLOB_NOMATCH){ | |
299 | pout("glob(3) found no matches for pattern %s\n", pattern); | |
300 | return 0; | |
301 | } | |
302 | ||
303 | if (retglob==GLOB_NOSPACE) | |
304 | pout("glob(3) ran out of memory matching pattern %s\n", pattern); | |
305 | #ifdef GLOB_ABORTED // missing in old versions of glob.h | |
306 | else if (retglob==GLOB_ABORTED) | |
307 | pout("glob(3) aborted matching pattern %s\n", pattern); | |
308 | #endif | |
309 | else | |
310 | pout("Unexplained error in glob(3) of pattern %s\n", pattern); | |
311 | ||
312 | return -1; | |
313 | } | |
314 | ||
315 | // did we find too many paths? | |
316 | lim = ((int)globbuf.gl_pathc < max) ? (int)globbuf.gl_pathc : max; | |
317 | if (lim < (int)globbuf.gl_pathc) | |
318 | pout("glob(3) found %d > MAX=%d devices matching pattern %s: ignoring %d paths\n", | |
319 | (int)globbuf.gl_pathc, max, pattern, (int)(globbuf.gl_pathc-max)); | |
320 | ||
321 | // allocate space for up to lim number of ATA devices | |
322 | if (!(mp = (char **)calloc(lim, sizeof(char*)))){ | |
323 | pout("Out of memory constructing scan device list\n"); | |
324 | return -1; | |
325 | } | |
326 | ||
327 | // now step through the list returned by glob. If not a link, copy | |
328 | // to list. If it is a link, evaluate it and see if the path ends | |
329 | // in "disc". | |
330 | for (i=0; i<lim; i++){ | |
331 | int retlink; | |
332 | ||
333 | // prepare a buffer for storing the link | |
334 | char linkbuf[1024]; | |
335 | ||
336 | // see if path is a link | |
337 | retlink=readlink(globbuf.gl_pathv[i], linkbuf, 1023); | |
338 | ||
339 | // if not a link (or a strange link), keep it | |
340 | if (retlink<=0 || retlink>1023) | |
341 | mp[n++] = CustomStrDup(globbuf.gl_pathv[i], 1, __LINE__, filenameandversion); | |
342 | else { | |
343 | // or if it's a link that points to a disc, follow it | |
344 | char *p; | |
345 | linkbuf[retlink]='\0'; | |
346 | if ((p=strrchr(linkbuf,'/')) && !strcmp(p+1, "disc")) | |
347 | // This is the branch of the code that gets followed if we are | |
348 | // using devfs WITH traditional compatibility links. In this | |
349 | // case, we add the traditional device name to the list that | |
350 | // is returned. | |
351 | mp[n++] = CustomStrDup(globbuf.gl_pathv[i], 1, __LINE__, filenameandversion); | |
352 | else { | |
353 | // This is the branch of the code that gets followed if we are | |
354 | // using devfs WITHOUT traditional compatibility links. In | |
355 | // this case, we check that the link to the directory is of | |
356 | // the correct type, and then append "disc" to it. | |
357 | char tmpname[1024]={0}; | |
4d59bff9 | 358 | const char * type = (strcmp(name,"ATA") ? "scsi" : "ide"); |
832b75ed GG |
359 | if (strstr(linkbuf, type)){ |
360 | snprintf(tmpname, 1024, "%s/disc", globbuf.gl_pathv[i]); | |
361 | mp[n++] = CustomStrDup(tmpname, 1, __LINE__, filenameandversion); | |
362 | } | |
363 | } | |
364 | } | |
365 | } | |
366 | ||
367 | // free memory, track memory usage | |
368 | globfree(&globbuf); | |
4d59bff9 | 369 | mp = static_cast<char **>(realloc(mp,n*(sizeof(char*)))); |
832b75ed GG |
370 | bytes += n*(sizeof(char*)); |
371 | ||
372 | // and set up return values | |
373 | *names=mp; | |
374 | return n; | |
375 | } | |
376 | ||
377 | // makes a list of device names to scan, for either ATA or SCSI | |
378 | // devices. Return -1 if no memory remaining, else the number of | |
379 | // devices on the list, which can be >=0. | |
380 | int make_device_names (char*** devlist, const char* name) { | |
381 | int retval, maxdev; | |
382 | ||
383 | #if 0 | |
384 | // for testing case where no device names are found | |
385 | return 0; | |
386 | #endif | |
387 | ||
388 | if (!strcmp(name,"SCSI")) | |
389 | retval=get_dev_names(devlist,"/dev/sd[a-z]", name, maxdev=26); | |
390 | else if (!strcmp(name,"ATA")) | |
391 | retval=get_dev_names(devlist,"/dev/hd[a-t]", name, maxdev=20); | |
392 | else | |
393 | // don't recognize disk type! | |
394 | return 0; | |
395 | ||
396 | // if we found traditional links, we are done | |
397 | if (retval>0) | |
398 | return retval; | |
399 | ||
400 | // else look for devfs entries without traditional links | |
401 | return get_dev_names(devlist,"/dev/discs/disc*", name, maxdev); | |
402 | } | |
403 | ||
404 | ||
405 | // PURPOSE | |
406 | // This is an interface routine meant to isolate the OS dependent | |
407 | // parts of the code, and to provide a debugging interface. Each | |
408 | // different port and OS needs to provide it's own interface. This | |
409 | // is the linux one. | |
410 | // DETAILED DESCRIPTION OF ARGUMENTS | |
411 | // device: is the file descriptor provided by open() | |
412 | // command: defines the different operations. | |
413 | // select: additional input data if needed (which log, which type of | |
414 | // self-test). | |
415 | // data: location to write output data, if needed (512 bytes). | |
416 | // Note: not all commands use all arguments. | |
417 | // RETURN VALUES | |
418 | // -1 if the command failed | |
419 | // 0 if the command succeeded, | |
420 | // STATUS_CHECK routine: | |
421 | // -1 if the command failed | |
422 | // 0 if the command succeeded and disk SMART status is "OK" | |
423 | // 1 if the command succeeded and disk SMART status is "FAILING" | |
424 | ||
425 | ||
426 | // huge value of buffer size needed because HDIO_DRIVE_CMD assumes | |
427 | // that buff[3] is the data size. Since the ATA_SMART_AUTOSAVE and | |
428 | // ATA_SMART_AUTO_OFFLINE use values of 0xf1 and 0xf8 we need the space. | |
429 | // Otherwise a 4+512 byte buffer would be enough. | |
430 | #define STRANGE_BUFFER_LENGTH (4+512*0xf8) | |
431 | ||
432 | int ata_command_interface(int device, smart_command_set command, int select, char *data){ | |
433 | unsigned char buff[STRANGE_BUFFER_LENGTH]; | |
434 | // positive: bytes to write to caller. negative: bytes to READ from | |
435 | // caller. zero: non-data command | |
436 | int copydata=0; | |
437 | ||
438 | const int HDIO_DRIVE_CMD_OFFSET = 4; | |
439 | ||
440 | // See struct hd_drive_cmd_hdr in hdreg.h. Before calling ioctl() | |
441 | // buff[0]: ATA COMMAND CODE REGISTER | |
442 | // buff[1]: ATA SECTOR NUMBER REGISTER == LBA LOW REGISTER | |
443 | // buff[2]: ATA FEATURES REGISTER | |
444 | // buff[3]: ATA SECTOR COUNT REGISTER | |
445 | ||
446 | // Note that on return: | |
447 | // buff[2] contains the ATA SECTOR COUNT REGISTER | |
448 | ||
449 | // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes) | |
450 | memset(buff, 0, STRANGE_BUFFER_LENGTH); | |
451 | ||
452 | buff[0]=ATA_SMART_CMD; | |
453 | switch (command){ | |
454 | case CHECK_POWER_MODE: | |
455 | buff[0]=ATA_CHECK_POWER_MODE; | |
456 | copydata=1; | |
457 | break; | |
458 | case READ_VALUES: | |
459 | buff[2]=ATA_SMART_READ_VALUES; | |
460 | buff[3]=1; | |
461 | copydata=512; | |
462 | break; | |
463 | case READ_THRESHOLDS: | |
464 | buff[2]=ATA_SMART_READ_THRESHOLDS; | |
465 | buff[1]=buff[3]=1; | |
466 | copydata=512; | |
467 | break; | |
468 | case READ_LOG: | |
469 | buff[2]=ATA_SMART_READ_LOG_SECTOR; | |
470 | buff[1]=select; | |
471 | buff[3]=1; | |
472 | copydata=512; | |
473 | break; | |
474 | case WRITE_LOG: | |
475 | break; | |
476 | case IDENTIFY: | |
477 | buff[0]=ATA_IDENTIFY_DEVICE; | |
478 | buff[3]=1; | |
479 | copydata=512; | |
480 | break; | |
481 | case PIDENTIFY: | |
482 | buff[0]=ATA_IDENTIFY_PACKET_DEVICE; | |
483 | buff[3]=1; | |
484 | copydata=512; | |
485 | break; | |
486 | case ENABLE: | |
487 | buff[2]=ATA_SMART_ENABLE; | |
488 | buff[1]=1; | |
489 | break; | |
490 | case DISABLE: | |
491 | buff[2]=ATA_SMART_DISABLE; | |
492 | buff[1]=1; | |
493 | break; | |
494 | case STATUS: | |
495 | // this command only says if SMART is working. It could be | |
496 | // replaced with STATUS_CHECK below. | |
497 | buff[2]=ATA_SMART_STATUS; | |
498 | break; | |
499 | case AUTO_OFFLINE: | |
500 | buff[2]=ATA_SMART_AUTO_OFFLINE; | |
501 | buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! | |
502 | break; | |
503 | case AUTOSAVE: | |
504 | buff[2]=ATA_SMART_AUTOSAVE; | |
505 | buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! | |
506 | break; | |
507 | case IMMEDIATE_OFFLINE: | |
508 | buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; | |
509 | buff[1]=select; | |
510 | break; | |
511 | case STATUS_CHECK: | |
512 | // This command uses HDIO_DRIVE_TASK and has different syntax than | |
513 | // the other commands. | |
514 | buff[1]=ATA_SMART_STATUS; | |
515 | break; | |
516 | default: | |
517 | pout("Unrecognized command %d in linux_ata_command_interface()\n" | |
518 | "Please contact " PACKAGE_BUGREPORT "\n", command); | |
519 | errno=ENOSYS; | |
520 | return -1; | |
521 | } | |
522 | ||
523 | // This command uses the HDIO_DRIVE_TASKFILE ioctl(). This is the | |
524 | // only ioctl() that can be used to WRITE data to the disk. | |
525 | if (command==WRITE_LOG) { | |
526 | unsigned char task[sizeof(ide_task_request_t)+512]; | |
527 | ide_task_request_t *reqtask=(ide_task_request_t *) task; | |
528 | task_struct_t *taskfile=(task_struct_t *) reqtask->io_ports; | |
529 | int retval; | |
530 | ||
531 | memset(task, 0, sizeof(task)); | |
532 | ||
533 | taskfile->data = 0; | |
534 | taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR; | |
535 | taskfile->sector_count = 1; | |
536 | taskfile->sector_number = select; | |
537 | taskfile->low_cylinder = 0x4f; | |
538 | taskfile->high_cylinder = 0xc2; | |
539 | taskfile->device_head = 0; | |
540 | taskfile->command = ATA_SMART_CMD; | |
541 | ||
542 | reqtask->data_phase = TASKFILE_OUT; | |
543 | reqtask->req_cmd = IDE_DRIVE_TASK_OUT; | |
544 | reqtask->out_size = 512; | |
545 | reqtask->in_size = 0; | |
546 | ||
547 | // copy user data into the task request structure | |
548 | memcpy(task+sizeof(ide_task_request_t), data, 512); | |
549 | ||
550 | if ((retval=ioctl(device, HDIO_DRIVE_TASKFILE, task))) { | |
551 | if (retval==-EINVAL) | |
4d59bff9 | 552 | pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n"); |
832b75ed GG |
553 | return -1; |
554 | } | |
555 | return 0; | |
556 | } | |
557 | ||
558 | // There are two different types of ioctls(). The HDIO_DRIVE_TASK | |
559 | // one is this: | |
560 | if (command==STATUS_CHECK){ | |
561 | int retval; | |
562 | ||
563 | // NOT DOCUMENTED in /usr/src/linux/include/linux/hdreg.h. You | |
564 | // have to read the IDE driver source code. Sigh. | |
565 | // buff[0]: ATA COMMAND CODE REGISTER | |
566 | // buff[1]: ATA FEATURES REGISTER | |
567 | // buff[2]: ATA SECTOR_COUNT | |
568 | // buff[3]: ATA SECTOR NUMBER | |
569 | // buff[4]: ATA CYL LO REGISTER | |
570 | // buff[5]: ATA CYL HI REGISTER | |
571 | // buff[6]: ATA DEVICE HEAD | |
572 | ||
573 | unsigned const char normal_lo=0x4f, normal_hi=0xc2; | |
574 | unsigned const char failed_lo=0xf4, failed_hi=0x2c; | |
575 | buff[4]=normal_lo; | |
576 | buff[5]=normal_hi; | |
577 | ||
578 | if ((retval=ioctl(device, HDIO_DRIVE_TASK, buff))) { | |
579 | if (retval==-EINVAL) { | |
4d59bff9 GG |
580 | pout("Error SMART Status command via HDIO_DRIVE_TASK failed"); |
581 | pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n"); | |
832b75ed GG |
582 | } |
583 | else | |
4d59bff9 | 584 | syserror("Error SMART Status command failed"); |
832b75ed GG |
585 | return -1; |
586 | } | |
587 | ||
588 | // Cyl low and Cyl high unchanged means "Good SMART status" | |
589 | if (buff[4]==normal_lo && buff[5]==normal_hi) | |
590 | return 0; | |
591 | ||
592 | // These values mean "Bad SMART status" | |
593 | if (buff[4]==failed_lo && buff[5]==failed_hi) | |
594 | return 1; | |
595 | ||
596 | // We haven't gotten output that makes sense; print out some debugging info | |
597 | syserror("Error SMART Status command failed"); | |
598 | pout("Please get assistance from " PACKAGE_HOMEPAGE "\n"); | |
599 | pout("Register values returned from SMART Status command are:\n"); | |
600 | pout("CMD=0x%02x\n",(int)buff[0]); | |
601 | pout("FR =0x%02x\n",(int)buff[1]); | |
602 | pout("NS =0x%02x\n",(int)buff[2]); | |
603 | pout("SC =0x%02x\n",(int)buff[3]); | |
604 | pout("CL =0x%02x\n",(int)buff[4]); | |
605 | pout("CH =0x%02x\n",(int)buff[5]); | |
606 | pout("SEL=0x%02x\n",(int)buff[6]); | |
607 | return -1; | |
608 | } | |
609 | ||
610 | #if 1 | |
611 | // Note to people doing ports to other OSes -- don't worry about | |
612 | // this block -- you can safely ignore it. I have put it here | |
613 | // because under linux when you do IDENTIFY DEVICE to a packet | |
614 | // device, it generates an ugly kernel syslog error message. This | |
615 | // is harmless but frightens users. So this block detects packet | |
616 | // devices and make IDENTIFY DEVICE fail "nicely" without a syslog | |
617 | // error message. | |
618 | // | |
619 | // If you read only the ATA specs, it appears as if a packet device | |
620 | // *might* respond to the IDENTIFY DEVICE command. This is | |
621 | // misleading - it's because around the time that SFF-8020 was | |
622 | // incorporated into the ATA-3/4 standard, the ATA authors were | |
623 | // sloppy. See SFF-8020 and you will see that ATAPI devices have | |
624 | // *always* had IDENTIFY PACKET DEVICE as a mandatory part of their | |
625 | // command set, and return 'Command Aborted' to IDENTIFY DEVICE. | |
626 | if (command==IDENTIFY || command==PIDENTIFY){ | |
627 | unsigned short deviceid[256]; | |
628 | // check the device identity, as seen when the system was booted | |
629 | // or the device was FIRST registered. This will not be current | |
630 | // if the user has subsequently changed some of the parameters. If | |
631 | // device is a packet device, swap the command interpretations. | |
632 | if (!ioctl(device, HDIO_GET_IDENTITY, deviceid) && (deviceid[0] & 0x8000)) | |
633 | buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE; | |
634 | } | |
635 | #endif | |
636 | ||
637 | // We are now doing the HDIO_DRIVE_CMD type ioctl. | |
638 | if ((ioctl(device, HDIO_DRIVE_CMD, buff))) | |
639 | return -1; | |
640 | ||
641 | // CHECK POWER MODE command returns information in the Sector Count | |
642 | // register (buff[3]). Copy to return data buffer. | |
643 | if (command==CHECK_POWER_MODE) | |
644 | buff[HDIO_DRIVE_CMD_OFFSET]=buff[2]; | |
645 | ||
646 | // if the command returns data then copy it back | |
647 | if (copydata) | |
648 | memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata); | |
649 | ||
650 | return 0; | |
651 | } | |
652 | ||
ba59cff1 GG |
653 | // CCISS Smart Array Controller |
654 | static int cciss_sendpassthru(unsigned int cmdtype, unsigned char *CDB, | |
655 | unsigned int CDBlen, char *buff, | |
656 | unsigned int size, unsigned int LunID, | |
657 | unsigned char *scsi3addr, int fd) | |
658 | { | |
659 | int err ; | |
660 | IOCTL_Command_struct iocommand; | |
661 | ||
662 | memset(&iocommand, 0, sizeof(iocommand)); | |
663 | ||
664 | if (cmdtype == 0) | |
665 | { | |
666 | // To controller; nothing to do | |
667 | } | |
668 | else if (cmdtype == 1) | |
669 | { | |
670 | iocommand.LUN_info.LogDev.VolId = LunID; | |
671 | iocommand.LUN_info.LogDev.Mode = 1; | |
672 | } | |
673 | else if (cmdtype == 2) | |
674 | { | |
675 | memcpy(&iocommand.LUN_info.LunAddrBytes,scsi3addr,8); | |
676 | iocommand.LUN_info.LogDev.Mode = 0; | |
677 | } | |
678 | else | |
679 | { | |
680 | fprintf(stderr, "cciss_sendpassthru: bad cmdtype\n"); | |
681 | return 1; | |
682 | } | |
683 | ||
684 | memcpy(&iocommand.Request.CDB[0], CDB, CDBlen); | |
685 | iocommand.Request.CDBLen = CDBlen; | |
686 | iocommand.Request.Type.Type = TYPE_CMD; | |
687 | iocommand.Request.Type.Attribute = ATTR_SIMPLE; | |
688 | iocommand.Request.Type.Direction = XFER_READ; | |
689 | iocommand.Request.Timeout = 0; | |
690 | ||
691 | iocommand.buf_size = size; | |
692 | iocommand.buf = (unsigned char *)buff; | |
693 | ||
694 | if ((err = ioctl(fd, CCISS_PASSTHRU, &iocommand))) | |
695 | { | |
696 | fprintf(stderr, "CCISS ioctl error %d\n", err); | |
697 | } | |
698 | return err; | |
699 | } | |
700 | ||
701 | static int cciss_getlun(int device, int target, unsigned char *physlun) | |
702 | { | |
703 | unsigned char CDB[16]= {0}; | |
704 | ReportLunData_struct *luns; | |
705 | int reportlunsize = sizeof(*luns) + CISS_MAX_PHYS_LUN * 8; | |
706 | int i; | |
707 | int ret; | |
708 | ||
709 | luns = (ReportLunData_struct *)malloc(reportlunsize); | |
710 | ||
711 | memset(luns, 0, reportlunsize); | |
712 | ||
713 | /* Get Physical LUN Info (for physical device) */ | |
714 | CDB[0] = CISS_REPORT_PHYS; | |
715 | CDB[6] = (reportlunsize >> 24) & 0xFF; /* MSB */ | |
716 | CDB[7] = (reportlunsize >> 16) & 0xFF; | |
717 | CDB[8] = (reportlunsize >> 8) & 0xFF; | |
718 | CDB[9] = reportlunsize & 0xFF; | |
719 | ||
720 | if ((ret = cciss_sendpassthru(0, CDB, 12, (char *)luns, reportlunsize, 0, NULL, device))) | |
721 | { | |
722 | free(luns); | |
723 | return ret; | |
724 | } | |
725 | ||
726 | for (i=0; i<CISS_MAX_LUN+1; i++) | |
727 | { | |
728 | if (luns->LUN[i][6] == target) | |
729 | { | |
730 | memcpy(physlun, luns->LUN[i], 8); | |
731 | free(luns); | |
732 | return 0; | |
733 | } | |
734 | } | |
735 | ||
736 | free(luns); | |
737 | return ret; | |
738 | } | |
739 | // end CCISS Smart Array Controller | |
740 | ||
832b75ed GG |
741 | // >>>>>> Start of general SCSI specific linux code |
742 | ||
743 | /* Linux specific code. | |
744 | * Historically smartmontools (and smartsuite before it) used the | |
745 | * SCSI_IOCTL_SEND_COMMAND ioctl which is available to all linux device | |
746 | * nodes that use the SCSI subsystem. A better interface has been available | |
747 | * via the SCSI generic (sg) driver but this involves the extra step of | |
748 | * mapping disk devices (e.g. /dev/sda) to the corresponding sg device | |
749 | * (e.g. /dev/sg2). In the linux kernel 2.6 series most of the facilities of | |
750 | * the sg driver have become available via the SG_IO ioctl which is available | |
751 | * on all SCSI devices (on SCSI tape devices from lk 2.6.6). | |
752 | * So the strategy below is to find out if the SG_IO ioctl is available and | |
753 | * if so use it; failing that use the older SCSI_IOCTL_SEND_COMMAND ioctl. | |
754 | * Should work in 2.0, 2.2, 2.4 and 2.6 series linux kernels. */ | |
755 | ||
756 | #define MAX_DXFER_LEN 1024 /* can be increased if necessary */ | |
757 | #define SEND_IOCTL_RESP_SENSE_LEN 16 /* ioctl limitation */ | |
758 | #define SG_IO_RESP_SENSE_LEN 64 /* large enough see buffer */ | |
759 | #define LSCSI_DRIVER_MASK 0xf /* mask out "suggestions" */ | |
760 | #define LSCSI_DRIVER_SENSE 0x8 /* alternate CHECK CONDITION indication */ | |
761 | #define LSCSI_DRIVER_TIMEOUT 0x6 | |
762 | #define LSCSI_DID_TIME_OUT 0x3 | |
763 | #define LSCSI_DID_BUS_BUSY 0x2 | |
764 | #define LSCSI_DID_NO_CONNECT 0x1 | |
765 | ||
766 | #ifndef SCSI_IOCTL_SEND_COMMAND | |
767 | #define SCSI_IOCTL_SEND_COMMAND 1 | |
768 | #endif | |
769 | ||
770 | #define SG_IO_PRESENT_UNKNOWN 0 | |
771 | #define SG_IO_PRESENT_YES 1 | |
772 | #define SG_IO_PRESENT_NO 2 | |
773 | ||
774 | static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report, | |
4d59bff9 | 775 | int unknown); |
832b75ed GG |
776 | static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report); |
777 | ||
778 | static int sg_io_state = SG_IO_PRESENT_UNKNOWN; | |
779 | ||
780 | /* Preferred implementation for issuing SCSI commands in linux. This | |
781 | * function uses the SG_IO ioctl. Return 0 if command issued successfully | |
782 | * (various status values should still be checked). If the SCSI command | |
783 | * cannot be issued then a negative errno value is returned. */ | |
784 | static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report, | |
4d59bff9 | 785 | int unknown) |
832b75ed GG |
786 | { |
787 | #ifndef SG_IO | |
788 | ARGUSED(dev_fd); ARGUSED(iop); ARGUSED(report); | |
789 | return -ENOTTY; | |
790 | #else | |
791 | struct sg_io_hdr io_hdr; | |
792 | ||
793 | if (report > 0) { | |
794 | int k, j; | |
795 | const unsigned char * ucp = iop->cmnd; | |
796 | const char * np; | |
797 | char buff[256]; | |
798 | const int sz = (int)sizeof(buff); | |
799 | ||
800 | np = scsi_get_opcode_name(ucp[0]); | |
801 | j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>"); | |
802 | for (k = 0; k < (int)iop->cmnd_len; ++k) | |
803 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); | |
804 | if ((report > 1) && | |
805 | (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) { | |
806 | int trunc = (iop->dxfer_len > 256) ? 1 : 0; | |
807 | ||
808 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " | |
809 | "data, len=%d%s:\n", (int)iop->dxfer_len, | |
810 | (trunc ? " [only first 256 bytes shown]" : "")); | |
811 | dStrHex((const char *)iop->dxferp, | |
4d59bff9 | 812 | (trunc ? 256 : iop->dxfer_len) , 1); |
832b75ed GG |
813 | } |
814 | else | |
815 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); | |
816 | pout(buff); | |
817 | } | |
818 | memset(&io_hdr, 0, sizeof(struct sg_io_hdr)); | |
819 | io_hdr.interface_id = 'S'; | |
820 | io_hdr.cmd_len = iop->cmnd_len; | |
821 | io_hdr.mx_sb_len = iop->max_sense_len; | |
822 | io_hdr.dxfer_len = iop->dxfer_len; | |
823 | io_hdr.dxferp = iop->dxferp; | |
824 | io_hdr.cmdp = iop->cmnd; | |
825 | io_hdr.sbp = iop->sensep; | |
826 | /* sg_io_hdr interface timeout has millisecond units. Timeout of 0 | |
827 | defaults to 60 seconds. */ | |
828 | io_hdr.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000; | |
829 | switch (iop->dxfer_dir) { | |
830 | case DXFER_NONE: | |
831 | io_hdr.dxfer_direction = SG_DXFER_NONE; | |
832 | break; | |
833 | case DXFER_FROM_DEVICE: | |
834 | io_hdr.dxfer_direction = SG_DXFER_FROM_DEV; | |
835 | break; | |
836 | case DXFER_TO_DEVICE: | |
837 | io_hdr.dxfer_direction = SG_DXFER_TO_DEV; | |
838 | break; | |
839 | default: | |
840 | pout("do_scsi_cmnd_io: bad dxfer_dir\n"); | |
841 | return -EINVAL; | |
842 | } | |
843 | iop->resp_sense_len = 0; | |
844 | iop->scsi_status = 0; | |
845 | iop->resid = 0; | |
846 | if (ioctl(dev_fd, SG_IO, &io_hdr) < 0) { | |
847 | if (report && (! unknown)) | |
848 | pout(" SG_IO ioctl failed, errno=%d [%s]\n", errno, | |
4d59bff9 | 849 | strerror(errno)); |
832b75ed GG |
850 | return -errno; |
851 | } | |
852 | if (report > 0) { | |
853 | pout(" scsi_status=0x%x, host_status=0x%x, driver_status=0x%x\n" | |
4d59bff9 GG |
854 | " info=0x%x duration=%d milliseconds\n", io_hdr.status, |
855 | io_hdr.host_status, io_hdr.driver_status, io_hdr.info, | |
856 | io_hdr.duration); | |
832b75ed GG |
857 | if (report > 1) { |
858 | if (DXFER_FROM_DEVICE == iop->dxfer_dir) { | |
859 | int trunc = (iop->dxfer_len > 256) ? 1 : 0; | |
860 | ||
861 | pout(" Incoming data, len=%d%s:\n", (int)iop->dxfer_len, | |
862 | (trunc ? " [only first 256 bytes shown]" : "")); | |
863 | dStrHex((const char*)iop->dxferp, | |
4d59bff9 | 864 | (trunc ? 256 : iop->dxfer_len) , 1); |
832b75ed GG |
865 | } |
866 | } | |
867 | } | |
868 | iop->resid = io_hdr.resid; | |
869 | iop->scsi_status = io_hdr.status; | |
870 | ||
871 | if (io_hdr.info | SG_INFO_CHECK) { /* error or warning */ | |
4d59bff9 | 872 | int masked_driver_status = (LSCSI_DRIVER_MASK & io_hdr.driver_status); |
832b75ed | 873 | |
4d59bff9 | 874 | if (0 != io_hdr.host_status) { |
832b75ed GG |
875 | if ((LSCSI_DID_NO_CONNECT == io_hdr.host_status) || |
876 | (LSCSI_DID_BUS_BUSY == io_hdr.host_status) || | |
877 | (LSCSI_DID_TIME_OUT == io_hdr.host_status)) | |
878 | return -ETIMEDOUT; | |
4d59bff9 GG |
879 | else |
880 | return -EIO; /* catch all */ | |
832b75ed GG |
881 | } |
882 | if (0 != masked_driver_status) { | |
883 | if (LSCSI_DRIVER_TIMEOUT == masked_driver_status) | |
884 | return -ETIMEDOUT; | |
4d59bff9 GG |
885 | else if (LSCSI_DRIVER_SENSE != masked_driver_status) |
886 | return -EIO; | |
887 | } | |
832b75ed GG |
888 | if (LSCSI_DRIVER_SENSE == masked_driver_status) |
889 | iop->scsi_status = SCSI_STATUS_CHECK_CONDITION; | |
890 | iop->resp_sense_len = io_hdr.sb_len_wr; | |
891 | if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) && | |
892 | iop->sensep && (iop->resp_sense_len > 0)) { | |
893 | if (report > 1) { | |
894 | pout(" >>> Sense buffer, len=%d:\n", | |
4d59bff9 | 895 | (int)iop->resp_sense_len); |
832b75ed GG |
896 | dStrHex((const char *)iop->sensep, iop->resp_sense_len , 1); |
897 | } | |
898 | } | |
899 | if (report) { | |
900 | if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) { | |
4d59bff9 GG |
901 | if ((iop->sensep[0] & 0x7f) > 0x71) |
902 | pout(" status=%x: [desc] sense_key=%x asc=%x ascq=%x\n", | |
903 | iop->scsi_status, iop->sensep[1] & 0xf, | |
904 | iop->sensep[2], iop->sensep[3]); | |
905 | else | |
906 | pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", | |
907 | iop->scsi_status, iop->sensep[2] & 0xf, | |
908 | iop->sensep[12], iop->sensep[13]); | |
832b75ed GG |
909 | } |
910 | else | |
911 | pout(" status=0x%x\n", iop->scsi_status); | |
912 | } | |
913 | } | |
914 | return 0; | |
915 | #endif | |
916 | } | |
917 | ||
918 | struct linux_ioctl_send_command | |
919 | { | |
920 | int inbufsize; | |
921 | int outbufsize; | |
922 | UINT8 buff[MAX_DXFER_LEN + 16]; | |
923 | }; | |
924 | ||
925 | /* The Linux SCSI_IOCTL_SEND_COMMAND ioctl is primitive and it doesn't | |
926 | * support: CDB length (guesses it from opcode), resid and timeout. | |
927 | * Patches in Linux 2.4.21 and 2.5.70 to extend SEND DIAGNOSTIC timeout | |
928 | * to 2 hours in order to allow long foreground extended self tests. */ | |
929 | static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report) | |
930 | { | |
931 | struct linux_ioctl_send_command wrk; | |
932 | int status, buff_offset; | |
933 | size_t len; | |
934 | ||
935 | memcpy(wrk.buff, iop->cmnd, iop->cmnd_len); | |
936 | buff_offset = iop->cmnd_len; | |
937 | if (report > 0) { | |
938 | int k, j; | |
939 | const unsigned char * ucp = iop->cmnd; | |
940 | const char * np; | |
941 | char buff[256]; | |
942 | const int sz = (int)sizeof(buff); | |
943 | ||
944 | np = scsi_get_opcode_name(ucp[0]); | |
945 | j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>"); | |
946 | for (k = 0; k < (int)iop->cmnd_len; ++k) | |
947 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]); | |
948 | if ((report > 1) && | |
949 | (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) { | |
950 | int trunc = (iop->dxfer_len > 256) ? 1 : 0; | |
951 | ||
952 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing " | |
953 | "data, len=%d%s:\n", (int)iop->dxfer_len, | |
954 | (trunc ? " [only first 256 bytes shown]" : "")); | |
955 | dStrHex((const char *)iop->dxferp, | |
4d59bff9 | 956 | (trunc ? 256 : iop->dxfer_len) , 1); |
832b75ed GG |
957 | } |
958 | else | |
959 | j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n"); | |
960 | pout(buff); | |
961 | } | |
962 | switch (iop->dxfer_dir) { | |
963 | case DXFER_NONE: | |
964 | wrk.inbufsize = 0; | |
965 | wrk.outbufsize = 0; | |
966 | break; | |
967 | case DXFER_FROM_DEVICE: | |
968 | wrk.inbufsize = 0; | |
969 | if (iop->dxfer_len > MAX_DXFER_LEN) | |
970 | return -EINVAL; | |
971 | wrk.outbufsize = iop->dxfer_len; | |
972 | break; | |
973 | case DXFER_TO_DEVICE: | |
974 | if (iop->dxfer_len > MAX_DXFER_LEN) | |
975 | return -EINVAL; | |
976 | memcpy(wrk.buff + buff_offset, iop->dxferp, iop->dxfer_len); | |
977 | wrk.inbufsize = iop->dxfer_len; | |
978 | wrk.outbufsize = 0; | |
979 | break; | |
980 | default: | |
981 | pout("do_scsi_cmnd_io: bad dxfer_dir\n"); | |
982 | return -EINVAL; | |
983 | } | |
984 | iop->resp_sense_len = 0; | |
985 | iop->scsi_status = 0; | |
986 | iop->resid = 0; | |
987 | status = ioctl(dev_fd, SCSI_IOCTL_SEND_COMMAND, &wrk); | |
988 | if (-1 == status) { | |
989 | if (report) | |
990 | pout(" SCSI_IOCTL_SEND_COMMAND ioctl failed, errno=%d [%s]\n", | |
991 | errno, strerror(errno)); | |
992 | return -errno; | |
993 | } | |
994 | if (0 == status) { | |
995 | if (report > 0) | |
996 | pout(" status=0\n"); | |
997 | if (DXFER_FROM_DEVICE == iop->dxfer_dir) { | |
998 | memcpy(iop->dxferp, wrk.buff, iop->dxfer_len); | |
999 | if (report > 1) { | |
1000 | int trunc = (iop->dxfer_len > 256) ? 1 : 0; | |
1001 | ||
1002 | pout(" Incoming data, len=%d%s:\n", (int)iop->dxfer_len, | |
1003 | (trunc ? " [only first 256 bytes shown]" : "")); | |
1004 | dStrHex((const char*)iop->dxferp, | |
4d59bff9 | 1005 | (trunc ? 256 : iop->dxfer_len) , 1); |
832b75ed GG |
1006 | } |
1007 | } | |
1008 | return 0; | |
1009 | } | |
1010 | iop->scsi_status = status & 0x7e; /* bits 0 and 7 used to be for vendors */ | |
1011 | if (LSCSI_DRIVER_SENSE == ((status >> 24) & 0xf)) | |
1012 | iop->scsi_status = SCSI_STATUS_CHECK_CONDITION; | |
1013 | len = (SEND_IOCTL_RESP_SENSE_LEN < iop->max_sense_len) ? | |
1014 | SEND_IOCTL_RESP_SENSE_LEN : iop->max_sense_len; | |
1015 | if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) && | |
1016 | iop->sensep && (len > 0)) { | |
1017 | memcpy(iop->sensep, wrk.buff, len); | |
1018 | iop->resp_sense_len = len; | |
1019 | if (report > 1) { | |
1020 | pout(" >>> Sense buffer, len=%d:\n", (int)len); | |
1021 | dStrHex((const char *)wrk.buff, len , 1); | |
1022 | } | |
1023 | } | |
1024 | if (report) { | |
1025 | if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) { | |
1026 | pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", status & 0xff, | |
1027 | wrk.buff[2] & 0xf, wrk.buff[12], wrk.buff[13]); | |
1028 | } | |
1029 | else | |
1030 | pout(" status=0x%x\n", status); | |
1031 | } | |
1032 | if (iop->scsi_status > 0) | |
1033 | return 0; | |
1034 | else { | |
1035 | if (report > 0) | |
1036 | pout(" ioctl status=0x%x but scsi status=0, fail with EIO\n", | |
1037 | status); | |
1038 | return -EIO; /* give up, assume no device there */ | |
1039 | } | |
1040 | } | |
1041 | ||
1042 | /* SCSI command transmission interface function, linux version. | |
1043 | * Returns 0 if SCSI command successfully launched and response | |
1044 | * received. Even when 0 is returned the caller should check | |
1045 | * scsi_cmnd_io::scsi_status for SCSI defined errors and warnings | |
1046 | * (e.g. CHECK CONDITION). If the SCSI command could not be issued | |
1047 | * (e.g. device not present or timeout) or some other problem | |
1048 | * (e.g. timeout) then returns a negative errno value */ | |
ba59cff1 GG |
1049 | static int do_normal_scsi_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, |
1050 | int report) | |
832b75ed GG |
1051 | { |
1052 | int res; | |
1053 | ||
1054 | /* implementation relies on static sg_io_state variable. If not | |
1055 | * previously set tries the SG_IO ioctl. If that succeeds assume | |
1056 | * that SG_IO ioctl functional. If it fails with an errno value | |
1057 | * other than ENODEV (no device) or permission then assume | |
1058 | * SCSI_IOCTL_SEND_COMMAND is the only option. */ | |
1059 | switch (sg_io_state) { | |
1060 | case SG_IO_PRESENT_UNKNOWN: | |
1061 | /* ignore report argument */ | |
4d59bff9 GG |
1062 | if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, 1))) { |
1063 | sg_io_state = SG_IO_PRESENT_YES; | |
1064 | return 0; | |
1065 | } else if ((-ENODEV == res) || (-EACCES == res) || (-EPERM == res)) | |
1066 | return res; /* wait until we see a device */ | |
832b75ed | 1067 | sg_io_state = SG_IO_PRESENT_NO; |
4d59bff9 | 1068 | /* drop through by design */ |
832b75ed | 1069 | case SG_IO_PRESENT_NO: |
4d59bff9 | 1070 | return sisc_cmnd_io(dev_fd, iop, report); |
832b75ed | 1071 | case SG_IO_PRESENT_YES: |
4d59bff9 | 1072 | return sg_io_cmnd_io(dev_fd, iop, report, 0); |
832b75ed | 1073 | default: |
4d59bff9 GG |
1074 | pout(">>>> do_scsi_cmnd_io: bad sg_io_state=%d\n", sg_io_state); |
1075 | sg_io_state = SG_IO_PRESENT_UNKNOWN; | |
1076 | return -EIO; /* report error and reset state */ | |
832b75ed GG |
1077 | } |
1078 | } | |
1079 | ||
ba59cff1 GG |
1080 | /* Check and call the right interface. Maybe when the do_generic_scsi_cmd_io interface is better |
1081 | we can take off this crude way of calling the right interface */ | |
1082 | int do_scsi_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report) | |
1083 | { | |
1084 | switch(con->controller_type) | |
1085 | { | |
1086 | case CONTROLLER_CCISS: | |
1087 | return cciss_io_interface(dev_fd, con->controller_port-1, iop, report); | |
1088 | // not reached | |
1089 | break; | |
1090 | default: | |
1091 | return do_normal_scsi_cmnd_io(dev_fd, iop, report); | |
1092 | // not reached | |
1093 | break; | |
1094 | } | |
1095 | } | |
1096 | ||
832b75ed GG |
1097 | // >>>>>> End of general SCSI specific linux code |
1098 | ||
ba59cff1 GG |
1099 | /* cciss >> CCSISS I/O passthrough |
1100 | This is an interface that uses the cciss passthrough to talk to the SMART controller on | |
1101 | the HP system. The cciss driver provides a way to send SCSI cmds through the CCISS passthrough | |
1102 | essentially the methods above and below pertain to SCSI, except for the SG driver which is not | |
1103 | involved. The CCISS driver does not engage the scsi subsystem. */ | |
1104 | static int cciss_io_interface(int device, int target, struct scsi_cmnd_io * iop, int report) | |
1105 | { | |
1106 | unsigned char pBuf[512] = {0}; | |
1107 | unsigned char phylun[1024] = {0}; | |
1108 | int iBufLen = 512; | |
1109 | int status = -1; | |
1110 | int len = 0; // used later in the code. | |
1111 | report = 0; | |
1112 | ||
1113 | cciss_getlun(device, target, phylun); | |
1114 | status = cciss_sendpassthru( 2, iop->cmnd, iop->cmnd_len, (char*) pBuf, iBufLen, 1, phylun, device); | |
1115 | ||
1116 | if (0 == status) | |
1117 | { | |
1118 | if (report > 0) | |
1119 | printf(" status=0\n"); | |
1120 | if (DXFER_FROM_DEVICE == iop->dxfer_dir) | |
1121 | { | |
1122 | memcpy(iop->dxferp, pBuf, iop->dxfer_len); | |
1123 | if (report > 1) | |
1124 | { | |
1125 | int trunc = (iop->dxfer_len > 256) ? 1 : 0; | |
1126 | printf(" Incoming data, len=%d%s:\n", (int)iop->dxfer_len, | |
1127 | (trunc ? " [only first 256 bytes shown]" : "")); | |
1128 | dStrHex((const char*)iop->dxferp, (trunc ? 256 : iop->dxfer_len) , 1); | |
1129 | } | |
1130 | } | |
1131 | return 0; | |
1132 | } | |
1133 | iop->scsi_status = status & 0x7e; /* bits 0 and 7 used to be for vendors */ | |
1134 | if (LSCSI_DRIVER_SENSE == ((status >> 24) & 0xf)) | |
1135 | iop->scsi_status = SCSI_STATUS_CHECK_CONDITION; | |
1136 | len = (SEND_IOCTL_RESP_SENSE_LEN < iop->max_sense_len) ? | |
1137 | SEND_IOCTL_RESP_SENSE_LEN : iop->max_sense_len; | |
1138 | if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) && | |
1139 | iop->sensep && (len > 0)) | |
1140 | { | |
1141 | memcpy(iop->sensep, pBuf, len); | |
1142 | iop->resp_sense_len = iBufLen; | |
1143 | if (report > 1) | |
1144 | { | |
1145 | printf(" >>> Sense buffer, len=%d:\n", (int)len); | |
1146 | dStrHex((const char *)pBuf, len , 1); | |
1147 | } | |
1148 | } | |
1149 | if (report) | |
1150 | { | |
1151 | if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) { | |
1152 | printf(" status=%x: sense_key=%x asc=%x ascq=%x\n", status & 0xff, | |
1153 | pBuf[2] & 0xf, pBuf[12], pBuf[13]); | |
1154 | } | |
1155 | else | |
1156 | printf(" status=0x%x\n", status); | |
1157 | } | |
1158 | if (iop->scsi_status > 0) | |
1159 | return 0; | |
1160 | else | |
1161 | { | |
1162 | if (report > 0) | |
1163 | printf(" ioctl status=0x%x but scsi status=0, fail with EIO\n", status); | |
1164 | return -EIO; /* give up, assume no device there */ | |
1165 | } | |
1166 | } | |
1167 | ||
832b75ed GG |
1168 | |
1169 | // prototype | |
1170 | void printwarning(smart_command_set command); | |
1171 | ||
1172 | // PURPOSE | |
1173 | // This is an interface routine meant to isolate the OS dependent | |
1174 | // parts of the code, and to provide a debugging interface. Each | |
1175 | // different port and OS needs to provide it's own interface. This | |
1176 | // is the linux interface to the 3ware 3w-xxxx driver. It allows ATA | |
1177 | // commands to be passed through the SCSI driver. | |
1178 | // DETAILED DESCRIPTION OF ARGUMENTS | |
1179 | // fd: is the file descriptor provided by open() | |
1180 | // disknum is the disk number (0 to 15) in the RAID array | |
1181 | // escalade_type indicates the type of controller type, and if scsi or char interface is used | |
1182 | // command: defines the different operations. | |
1183 | // select: additional input data if needed (which log, which type of | |
1184 | // self-test). | |
1185 | // data: location to write output data, if needed (512 bytes). | |
1186 | // Note: not all commands use all arguments. | |
1187 | // RETURN VALUES | |
1188 | // -1 if the command failed | |
1189 | // 0 if the command succeeded, | |
1190 | // STATUS_CHECK routine: | |
1191 | // -1 if the command failed | |
1192 | // 0 if the command succeeded and disk SMART status is "OK" | |
1193 | // 1 if the command succeeded and disk SMART status is "FAILING" | |
1194 | ||
1195 | ||
1196 | /* 512 is the max payload size: increase if needed */ | |
1197 | #define BUFFER_LEN_678K ( sizeof(TW_Ioctl) ) // 1044 unpacked, 1041 packed | |
1198 | #define BUFFER_LEN_678K_CHAR ( sizeof(TW_New_Ioctl)+512-1 ) // 1539 unpacked, 1536 packed | |
1199 | #define BUFFER_LEN_9000 ( sizeof(TW_Ioctl_Buf_Apache)+512-1 ) // 2051 unpacked, 2048 packed | |
1200 | #define TW_IOCTL_BUFFER_SIZE ( MAX(MAX(BUFFER_LEN_678K, BUFFER_LEN_9000), BUFFER_LEN_678K_CHAR) ) | |
1201 | ||
1202 | int escalade_command_interface(int fd, int disknum, int escalade_type, smart_command_set command, int select, char *data){ | |
1203 | ||
1204 | // return value and buffer for ioctl() | |
1205 | int ioctlreturn, readdata=0; | |
1206 | ||
1207 | // Used by both the SCSI and char interfaces | |
1208 | TW_Passthru *passthru=NULL; | |
1209 | char ioctl_buffer[TW_IOCTL_BUFFER_SIZE]; | |
1210 | ||
1211 | // only used for SCSI device interface | |
1212 | TW_Ioctl *tw_ioctl=NULL; | |
1213 | TW_Output *tw_output=NULL; | |
1214 | ||
1215 | // only used for 6000/7000/8000 char device interface | |
1216 | TW_New_Ioctl *tw_ioctl_char=NULL; | |
1217 | ||
1218 | // only used for 9000 character device interface | |
1219 | TW_Ioctl_Buf_Apache *tw_ioctl_apache=NULL; | |
1220 | ||
1221 | memset(ioctl_buffer, 0, TW_IOCTL_BUFFER_SIZE); | |
1222 | ||
1223 | if (escalade_type==CONTROLLER_3WARE_9000_CHAR) { | |
1224 | tw_ioctl_apache = (TW_Ioctl_Buf_Apache *)ioctl_buffer; | |
1225 | tw_ioctl_apache->driver_command.control_code = TW_IOCTL_FIRMWARE_PASS_THROUGH; | |
1226 | tw_ioctl_apache->driver_command.buffer_length = 512; /* payload size */ | |
1227 | passthru = (TW_Passthru *)&(tw_ioctl_apache->firmware_command.command.oldcommand); | |
1228 | } | |
1229 | else if (escalade_type==CONTROLLER_3WARE_678K_CHAR) { | |
1230 | tw_ioctl_char = (TW_New_Ioctl *)ioctl_buffer; | |
1231 | tw_ioctl_char->data_buffer_length = 512; | |
1232 | passthru = (TW_Passthru *)&(tw_ioctl_char->firmware_command); | |
1233 | } | |
1234 | else if (escalade_type==CONTROLLER_3WARE_678K) { | |
1235 | tw_ioctl = (TW_Ioctl *)ioctl_buffer; | |
1236 | tw_ioctl->cdb[0] = TW_IOCTL; | |
1237 | tw_ioctl->opcode = TW_ATA_PASSTHRU; | |
1238 | tw_ioctl->input_length = 512; // correct even for non-data commands | |
1239 | tw_ioctl->output_length = 512; // correct even for non-data commands | |
1240 | tw_output = (TW_Output *)tw_ioctl; | |
1241 | passthru = (TW_Passthru *)&(tw_ioctl->input_data); | |
1242 | } | |
1243 | else { | |
1244 | pout("Unrecognized escalade_type %d in linux_3ware_command_interface(disk %d)\n" | |
1245 | "Please contact " PACKAGE_BUGREPORT "\n", escalade_type, disknum); | |
1246 | errno=ENOSYS; | |
1247 | return -1; | |
1248 | } | |
1249 | ||
1250 | // Same for (almost) all commands - but some reset below | |
1251 | passthru->byte0.opcode = TW_OP_ATA_PASSTHRU; | |
1252 | passthru->request_id = 0xFF; | |
1253 | passthru->byte3.aport = disknum; | |
1254 | passthru->byte3.host_id = 0; | |
1255 | passthru->status = 0; | |
1256 | passthru->flags = 0x1; | |
1257 | passthru->drive_head = 0x0; | |
1258 | passthru->sector_num = 0; | |
1259 | ||
1260 | // All SMART commands use this CL/CH signature. These are magic | |
1261 | // values from the ATA specifications. | |
1262 | passthru->cylinder_lo = 0x4F; | |
1263 | passthru->cylinder_hi = 0xC2; | |
1264 | ||
1265 | // SMART ATA COMMAND REGISTER value | |
1266 | passthru->command = ATA_SMART_CMD; | |
1267 | ||
1268 | // Is this a command that reads or returns 512 bytes? | |
1269 | // passthru->param values are: | |
1270 | // 0x0 - non data command without TFR write check, | |
1271 | // 0x8 - non data command with TFR write check, | |
1272 | // 0xD - data command that returns data to host from device | |
1273 | // 0xF - data command that writes data from host to device | |
1274 | // passthru->size values are 0x5 for non-data and 0x07 for data | |
1275 | if (command == READ_VALUES || | |
1276 | command == READ_THRESHOLDS || | |
1277 | command == READ_LOG || | |
1278 | command == IDENTIFY || | |
1279 | command == WRITE_LOG ) { | |
1280 | readdata=1; | |
1281 | passthru->byte0.sgloff = 0x5; | |
1282 | passthru->size = 0x7; | |
1283 | passthru->param = 0xD; | |
1284 | passthru->sector_count = 0x1; | |
1285 | // For 64-bit to work correctly, up the size of the command packet | |
1286 | // in dwords by 1 to account for the 64-bit single sgl 'address' | |
1287 | // field. Note that this doesn't agree with the typedefs but it's | |
1288 | // right (agree with kernel driver behavior/typedefs). | |
1289 | if (escalade_type==CONTROLLER_3WARE_9000_CHAR && sizeof(long)==8) | |
1290 | passthru->size++; | |
1291 | } | |
1292 | else { | |
1293 | // Non data command -- but doesn't use large sector | |
1294 | // count register values. | |
1295 | passthru->byte0.sgloff = 0x0; | |
1296 | passthru->size = 0x5; | |
1297 | passthru->param = 0x8; | |
1298 | passthru->sector_count = 0x0; | |
1299 | } | |
1300 | ||
1301 | // Now set ATA registers depending upon command | |
1302 | switch (command){ | |
1303 | case CHECK_POWER_MODE: | |
1304 | passthru->command = ATA_CHECK_POWER_MODE; | |
1305 | passthru->features = 0; | |
1306 | passthru->cylinder_lo = 0; | |
1307 | passthru->cylinder_hi = 0; | |
1308 | break; | |
1309 | case READ_VALUES: | |
1310 | passthru->features = ATA_SMART_READ_VALUES; | |
1311 | break; | |
1312 | case READ_THRESHOLDS: | |
1313 | passthru->features = ATA_SMART_READ_THRESHOLDS; | |
1314 | break; | |
1315 | case READ_LOG: | |
1316 | passthru->features = ATA_SMART_READ_LOG_SECTOR; | |
1317 | // log number to return | |
1318 | passthru->sector_num = select; | |
1319 | break; | |
1320 | case WRITE_LOG: | |
1321 | if (escalade_type == CONTROLLER_3WARE_9000_CHAR) | |
1322 | memcpy((unsigned char *)tw_ioctl_apache->data_buffer, data, 512); | |
1323 | else if (escalade_type == CONTROLLER_3WARE_678K_CHAR) | |
1324 | memcpy((unsigned char *)tw_ioctl_char->data_buffer, data, 512); | |
1325 | else { | |
1326 | // COMMAND NOT SUPPORTED VIA SCSI IOCTL INTERFACE | |
1327 | // memcpy(tw_output->output_data, data, 512); | |
1328 | printwarning(command); | |
1329 | errno=ENOTSUP; | |
1330 | return -1; | |
1331 | } | |
1332 | readdata=0; | |
1333 | passthru->features = ATA_SMART_WRITE_LOG_SECTOR; | |
1334 | passthru->sector_count = 1; | |
1335 | passthru->sector_num = select; | |
1336 | passthru->param = 0xF; // PIO data write | |
1337 | break; | |
1338 | case IDENTIFY: | |
1339 | // ATA IDENTIFY DEVICE | |
1340 | passthru->command = ATA_IDENTIFY_DEVICE; | |
1341 | passthru->features = 0; | |
1342 | passthru->cylinder_lo = 0; | |
1343 | passthru->cylinder_hi = 0; | |
1344 | break; | |
1345 | case PIDENTIFY: | |
1346 | // 3WARE controller can NOT have packet device internally | |
1347 | pout("WARNING - NO DEVICE FOUND ON 3WARE CONTROLLER (disk %d)\n", disknum); | |
1348 | pout("Note: /dev/sdX many need to be replaced with /dev/tweN or /dev/twaN\n"); | |
1349 | errno=ENODEV; | |
1350 | return -1; | |
1351 | case ENABLE: | |
1352 | passthru->features = ATA_SMART_ENABLE; | |
1353 | break; | |
1354 | case DISABLE: | |
1355 | passthru->features = ATA_SMART_DISABLE; | |
1356 | break; | |
1357 | case AUTO_OFFLINE: | |
1358 | passthru->features = ATA_SMART_AUTO_OFFLINE; | |
1359 | // Enable or disable? | |
1360 | passthru->sector_count = select; | |
1361 | break; | |
1362 | case AUTOSAVE: | |
1363 | passthru->features = ATA_SMART_AUTOSAVE; | |
1364 | // Enable or disable? | |
1365 | passthru->sector_count = select; | |
1366 | break; | |
1367 | case IMMEDIATE_OFFLINE: | |
1368 | passthru->features = ATA_SMART_IMMEDIATE_OFFLINE; | |
1369 | // What test type to run? | |
1370 | passthru->sector_num = select; | |
1371 | break; | |
1372 | case STATUS_CHECK: | |
1373 | passthru->features = ATA_SMART_STATUS; | |
1374 | break; | |
1375 | case STATUS: | |
1376 | // This is JUST to see if SMART is enabled, by giving SMART status | |
1377 | // command. But it doesn't say if status was good, or failing. | |
1378 | // See below for the difference. | |
1379 | passthru->features = ATA_SMART_STATUS; | |
1380 | break; | |
1381 | default: | |
1382 | pout("Unrecognized command %d in linux_3ware_command_interface(disk %d)\n" | |
1383 | "Please contact " PACKAGE_BUGREPORT "\n", command, disknum); | |
1384 | errno=ENOSYS; | |
1385 | return -1; | |
1386 | } | |
1387 | ||
1388 | // Now send the command down through an ioctl() | |
1389 | if (escalade_type==CONTROLLER_3WARE_9000_CHAR) | |
1390 | ioctlreturn=ioctl(fd, TW_IOCTL_FIRMWARE_PASS_THROUGH, tw_ioctl_apache); | |
1391 | else if (escalade_type==CONTROLLER_3WARE_678K_CHAR) | |
1392 | ioctlreturn=ioctl(fd, TW_CMD_PACKET_WITH_DATA, tw_ioctl_char); | |
1393 | else | |
1394 | ioctlreturn=ioctl(fd, SCSI_IOCTL_SEND_COMMAND, tw_ioctl); | |
1395 | ||
1396 | // Deal with the different error cases | |
1397 | if (ioctlreturn) { | |
1398 | if (CONTROLLER_3WARE_678K==escalade_type && ((command==AUTO_OFFLINE || command==AUTOSAVE) && select)){ | |
1399 | // error here is probably a kernel driver whose version is too old | |
1400 | printwarning(command); | |
1401 | errno=ENOTSUP; | |
1402 | } | |
1403 | if (!errno) | |
1404 | errno=EIO; | |
1405 | return -1; | |
1406 | } | |
1407 | ||
1408 | // The passthru structure is valid after return from an ioctl if: | |
1409 | // - we are using the character interface OR | |
1410 | // - we are using the SCSI interface and this is a NON-READ-DATA command | |
1411 | // For SCSI interface, note that we set passthru to a different | |
1412 | // value after ioctl(). | |
1413 | if (CONTROLLER_3WARE_678K==escalade_type) { | |
1414 | if (readdata) | |
1415 | passthru=NULL; | |
1416 | else | |
1417 | passthru=(TW_Passthru *)&(tw_output->output_data); | |
1418 | } | |
1419 | ||
1420 | // See if the ATA command failed. Now that we have returned from | |
1421 | // the ioctl() call, if passthru is valid, then: | |
1422 | // - passthru->status contains the 3ware controller STATUS | |
1423 | // - passthru->command contains the ATA STATUS register | |
1424 | // - passthru->features contains the ATA ERROR register | |
1425 | // | |
1426 | // Check bits 0 (error bit) and 5 (device fault) of the ATA STATUS | |
1427 | // If bit 0 (error bit) is set, then ATA ERROR register is valid. | |
1428 | // While we *might* decode the ATA ERROR register, at the moment it | |
1429 | // doesn't make much sense: we don't care in detail why the error | |
1430 | // happened. | |
1431 | ||
1432 | if (passthru && (passthru->status || (passthru->command & 0x21))) { | |
1433 | errno=EIO; | |
1434 | return -1; | |
1435 | } | |
1436 | ||
1437 | // If this is a read data command, copy data to output buffer | |
1438 | if (readdata) { | |
1439 | if (escalade_type==CONTROLLER_3WARE_9000_CHAR) | |
1440 | memcpy(data, (unsigned char *)tw_ioctl_apache->data_buffer, 512); | |
1441 | else if (escalade_type==CONTROLLER_3WARE_678K_CHAR) | |
1442 | memcpy(data, (unsigned char *)tw_ioctl_char->data_buffer, 512); | |
1443 | else | |
1444 | memcpy(data, tw_output->output_data, 512); | |
1445 | } | |
1446 | ||
1447 | // For STATUS_CHECK, we need to check register values | |
1448 | if (command==STATUS_CHECK) { | |
1449 | ||
1450 | // To find out if the SMART RETURN STATUS is good or failing, we | |
1451 | // need to examine the values of the Cylinder Low and Cylinder | |
1452 | // High Registers. | |
1453 | ||
1454 | unsigned short cyl_lo=passthru->cylinder_lo; | |
1455 | unsigned short cyl_hi=passthru->cylinder_hi; | |
1456 | ||
1457 | // If values in Cyl-LO and Cyl-HI are unchanged, SMART status is good. | |
1458 | if (cyl_lo==0x4F && cyl_hi==0xC2) | |
1459 | return 0; | |
1460 | ||
1461 | // If values in Cyl-LO and Cyl-HI are as follows, SMART status is FAIL | |
1462 | if (cyl_lo==0xF4 && cyl_hi==0x2C) | |
1463 | return 1; | |
1464 | ||
1465 | // Any other values mean that something has gone wrong with the command | |
1466 | if (CONTROLLER_3WARE_678K==escalade_type) { | |
1467 | printwarning(command); | |
1468 | errno=ENOSYS; | |
1469 | return 0; | |
1470 | } | |
1471 | else { | |
1472 | errno=EIO; | |
1473 | return -1; | |
1474 | } | |
1475 | } | |
1476 | ||
1477 | // copy sector count register (one byte!) to return data | |
1478 | if (command==CHECK_POWER_MODE) | |
1479 | *data=*(char *)&(passthru->sector_count); | |
1480 | ||
1481 | // look for nonexistent devices/ports | |
1482 | if (command==IDENTIFY && !nonempty((unsigned char *)data, 512)) { | |
1483 | errno=ENODEV; | |
1484 | return -1; | |
1485 | } | |
1486 | ||
1487 | return 0; | |
1488 | } | |
1489 | ||
1490 | ||
1491 | ||
1492 | int marvell_command_interface(int device, | |
1493 | smart_command_set command, | |
1494 | int select, | |
1495 | char *data) { | |
1496 | typedef struct { | |
1497 | int inlen; | |
1498 | int outlen; | |
1499 | char cmd[540]; | |
1500 | } mvsata_scsi_cmd; | |
1501 | ||
1502 | int copydata = 0; | |
1503 | mvsata_scsi_cmd smart_command; | |
1504 | unsigned char *buff = (unsigned char *)&smart_command.cmd[6]; | |
1505 | // See struct hd_drive_cmd_hdr in hdreg.h | |
1506 | // buff[0]: ATA COMMAND CODE REGISTER | |
1507 | // buff[1]: ATA SECTOR NUMBER REGISTER | |
1508 | // buff[2]: ATA FEATURES REGISTER | |
1509 | // buff[3]: ATA SECTOR COUNT REGISTER | |
1510 | ||
1511 | // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes) | |
1512 | memset(&smart_command, 0, sizeof(smart_command)); | |
1513 | smart_command.inlen = 540; | |
1514 | smart_command.outlen = 540; | |
1515 | smart_command.cmd[0] = 0xC; //Vendor-specific code | |
1516 | smart_command.cmd[4] = 6; //command length | |
1517 | ||
1518 | buff[0] = ATA_SMART_CMD; | |
1519 | switch (command){ | |
1520 | case CHECK_POWER_MODE: | |
1521 | buff[0]=ATA_CHECK_POWER_MODE; | |
1522 | break; | |
1523 | case READ_VALUES: | |
1524 | buff[2]=ATA_SMART_READ_VALUES; | |
1525 | copydata=buff[3]=1; | |
1526 | break; | |
1527 | case READ_THRESHOLDS: | |
1528 | buff[2]=ATA_SMART_READ_THRESHOLDS; | |
1529 | copydata=buff[1]=buff[3]=1; | |
1530 | break; | |
1531 | case READ_LOG: | |
1532 | buff[2]=ATA_SMART_READ_LOG_SECTOR; | |
1533 | buff[1]=select; | |
1534 | copydata=buff[3]=1; | |
1535 | break; | |
1536 | case IDENTIFY: | |
1537 | buff[0]=ATA_IDENTIFY_DEVICE; | |
1538 | copydata=buff[3]=1; | |
1539 | break; | |
1540 | case PIDENTIFY: | |
1541 | buff[0]=ATA_IDENTIFY_PACKET_DEVICE; | |
1542 | copydata=buff[3]=1; | |
1543 | break; | |
1544 | case ENABLE: | |
1545 | buff[2]=ATA_SMART_ENABLE; | |
1546 | buff[1]=1; | |
1547 | break; | |
1548 | case DISABLE: | |
1549 | buff[2]=ATA_SMART_DISABLE; | |
1550 | buff[1]=1; | |
1551 | break; | |
1552 | case STATUS: | |
1553 | case STATUS_CHECK: | |
1554 | // this command only says if SMART is working. It could be | |
1555 | // replaced with STATUS_CHECK below. | |
1556 | buff[2] = ATA_SMART_STATUS; | |
1557 | break; | |
1558 | case AUTO_OFFLINE: | |
1559 | buff[2]=ATA_SMART_AUTO_OFFLINE; | |
1560 | buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! | |
1561 | break; | |
1562 | case AUTOSAVE: | |
1563 | buff[2]=ATA_SMART_AUTOSAVE; | |
1564 | buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!! | |
1565 | break; | |
1566 | case IMMEDIATE_OFFLINE: | |
1567 | buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; | |
1568 | buff[1]=select; | |
1569 | break; | |
1570 | default: | |
1571 | pout("Unrecognized command %d in mvsata_os_specific_handler()\n", command); | |
1572 | exit(1); | |
1573 | break; | |
1574 | } | |
1575 | // There are two different types of ioctls(). The HDIO_DRIVE_TASK | |
1576 | // one is this: | |
1577 | // We are now doing the HDIO_DRIVE_CMD type ioctl. | |
1578 | if (ioctl(device, SCSI_IOCTL_SEND_COMMAND, (void *)&smart_command)) | |
1579 | return -1; | |
1580 | ||
1581 | if (command==CHECK_POWER_MODE) { | |
1582 | // LEON -- CHECK THIS PLEASE. THIS SHOULD BE THE SECTOR COUNT | |
1583 | // REGISTER, AND IT MIGHT BE buff[2] NOT buff[3]. Bruce | |
1584 | data[0]=buff[3]; | |
1585 | return 0; | |
1586 | } | |
1587 | ||
1588 | // Always succeed on a SMART status, as a disk that failed returned | |
1589 | // buff[4]=0xF4, buff[5]=0x2C, i.e. "Bad SMART status" (see below). | |
1590 | if (command == STATUS) | |
1591 | return 0; | |
1592 | //Data returned is starting from 0 offset | |
1593 | if (command == STATUS_CHECK) | |
1594 | { | |
1595 | // Cyl low and Cyl high unchanged means "Good SMART status" | |
1596 | if (buff[4] == 0x4F && buff[5] == 0xC2) | |
1597 | return 0; | |
1598 | // These values mean "Bad SMART status" | |
1599 | if (buff[4] == 0xF4 && buff[5] == 0x2C) | |
1600 | return 1; | |
1601 | // We haven't gotten output that makes sense; print out some debugging info | |
1602 | syserror("Error SMART Status command failed"); | |
1603 | pout("Please get assistance from %s\n",PACKAGE_BUGREPORT); | |
1604 | pout("Register values returned from SMART Status command are:\n"); | |
1605 | pout("CMD =0x%02x\n",(int)buff[0]); | |
1606 | pout("FR =0x%02x\n",(int)buff[1]); | |
1607 | pout("NS =0x%02x\n",(int)buff[2]); | |
1608 | pout("SC =0x%02x\n",(int)buff[3]); | |
1609 | pout("CL =0x%02x\n",(int)buff[4]); | |
1610 | pout("CH =0x%02x\n",(int)buff[5]); | |
1611 | pout("SEL=0x%02x\n",(int)buff[6]); | |
1612 | return -1; | |
1613 | } | |
1614 | ||
1615 | if (copydata) | |
1616 | memcpy(data, buff, 512); | |
1617 | return 0; | |
1618 | } | |
1619 | ||
4d59bff9 GG |
1620 | // this implementation is derived from ata_command_interface with a header |
1621 | // packing for highpoint linux driver ioctl interface | |
1622 | // | |
1623 | // ioctl(fd,HPTIO_CTL,buff) | |
1624 | // ^^^^^^^^^ | |
1625 | // | |
1626 | // structure of hpt_buff | |
1627 | // +----+----+----+----+--------------------.....---------------------+ | |
1628 | // | 1 | 2 | 3 | 4 | 5 | | |
1629 | // +----+----+----+----+--------------------.....---------------------+ | |
1630 | // | |
1631 | // 1: The target controller [ int ( 4 Bytes ) ] | |
1632 | // 2: The channel of the target controllee [ int ( 4 Bytes ) ] | |
1633 | // 3: HDIO_ ioctl call [ int ( 4 Bytes ) ] | |
1634 | // available from ${LINUX_KERNEL_SOURCE}/Documentation/ioctl/hdio | |
1635 | // 4: the pmport that disk attached, [ int ( 4 Bytes ) ] | |
1636 | // if no pmport device, set to 1 or leave blank | |
1637 | // 5: data [ void * ( var leangth ) ] | |
1638 | // | |
1639 | int highpoint_command_interface(int device, smart_command_set command, | |
1640 | int select, char *data) | |
1641 | { | |
1642 | unsigned char hpt_buff[4*sizeof(int) + STRANGE_BUFFER_LENGTH]; | |
1643 | unsigned int *hpt = (unsigned int *)hpt_buff; | |
1644 | unsigned char *buff = &hpt_buff[4*sizeof(int)]; | |
1645 | int copydata = 0; | |
1646 | const int HDIO_DRIVE_CMD_OFFSET = 4; | |
1647 | ||
1648 | memset(hpt_buff, 0, 4*sizeof(int) + STRANGE_BUFFER_LENGTH); | |
1649 | hpt[0] = con->hpt_data[0]; // controller id | |
1650 | hpt[1] = con->hpt_data[1]; // channel number | |
1651 | hpt[3] = con->hpt_data[2]; // pmport number | |
1652 | ||
1653 | buff[0]=ATA_SMART_CMD; | |
1654 | switch (command){ | |
1655 | case CHECK_POWER_MODE: | |
1656 | buff[0]=ATA_CHECK_POWER_MODE; | |
1657 | copydata=1; | |
1658 | break; | |
1659 | case READ_VALUES: | |
1660 | buff[2]=ATA_SMART_READ_VALUES; | |
1661 | buff[3]=1; | |
1662 | copydata=512; | |
1663 | break; | |
1664 | case READ_THRESHOLDS: | |
1665 | buff[2]=ATA_SMART_READ_THRESHOLDS; | |
1666 | buff[1]=buff[3]=1; | |
1667 | copydata=512; | |
1668 | break; | |
1669 | case READ_LOG: | |
1670 | buff[2]=ATA_SMART_READ_LOG_SECTOR; | |
1671 | buff[1]=select; | |
1672 | buff[3]=1; | |
1673 | copydata=512; | |
1674 | break; | |
1675 | case WRITE_LOG: | |
1676 | break; | |
1677 | case IDENTIFY: | |
1678 | buff[0]=ATA_IDENTIFY_DEVICE; | |
1679 | buff[3]=1; | |
1680 | copydata=512; | |
1681 | break; | |
1682 | case PIDENTIFY: | |
1683 | buff[0]=ATA_IDENTIFY_PACKET_DEVICE; | |
1684 | buff[3]=1; | |
1685 | copydata=512; | |
1686 | break; | |
1687 | case ENABLE: | |
1688 | buff[2]=ATA_SMART_ENABLE; | |
1689 | buff[1]=1; | |
1690 | break; | |
1691 | case DISABLE: | |
1692 | buff[2]=ATA_SMART_DISABLE; | |
1693 | buff[1]=1; | |
1694 | break; | |
1695 | case STATUS: | |
1696 | buff[2]=ATA_SMART_STATUS; | |
1697 | break; | |
1698 | case AUTO_OFFLINE: | |
1699 | buff[2]=ATA_SMART_AUTO_OFFLINE; | |
1700 | buff[3]=select; | |
1701 | break; | |
1702 | case AUTOSAVE: | |
1703 | buff[2]=ATA_SMART_AUTOSAVE; | |
1704 | buff[3]=select; | |
1705 | break; | |
1706 | case IMMEDIATE_OFFLINE: | |
1707 | buff[2]=ATA_SMART_IMMEDIATE_OFFLINE; | |
1708 | buff[1]=select; | |
1709 | break; | |
1710 | case STATUS_CHECK: | |
1711 | buff[1]=ATA_SMART_STATUS; | |
1712 | break; | |
1713 | default: | |
1714 | pout("Unrecognized command %d in linux_highpoint_command_interface()\n" | |
1715 | "Please contact " PACKAGE_BUGREPORT "\n", command); | |
1716 | errno=ENOSYS; | |
1717 | return -1; | |
1718 | } | |
1719 | ||
1720 | if (command==WRITE_LOG) { | |
1721 | unsigned char task[4*sizeof(int)+sizeof(ide_task_request_t)+512]; | |
1722 | unsigned int *hpt = (unsigned int *)task; | |
1723 | ide_task_request_t *reqtask = (ide_task_request_t *)(&task[4*sizeof(int)]); | |
1724 | task_struct_t *taskfile = (task_struct_t *)reqtask->io_ports; | |
1725 | int retval; | |
1726 | ||
1727 | memset(task, 0, sizeof(task)); | |
1728 | ||
1729 | hpt[0] = con->hpt_data[0]; // controller id | |
1730 | hpt[1] = con->hpt_data[1]; // channel number | |
1731 | hpt[3] = con->hpt_data[2]; // pmport number | |
1732 | hpt[2] = HDIO_DRIVE_TASKFILE; // real hd ioctl | |
1733 | ||
1734 | taskfile->data = 0; | |
1735 | taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR; | |
1736 | taskfile->sector_count = 1; | |
1737 | taskfile->sector_number = select; | |
1738 | taskfile->low_cylinder = 0x4f; | |
1739 | taskfile->high_cylinder = 0xc2; | |
1740 | taskfile->device_head = 0; | |
1741 | taskfile->command = ATA_SMART_CMD; | |
1742 | ||
1743 | reqtask->data_phase = TASKFILE_OUT; | |
1744 | reqtask->req_cmd = IDE_DRIVE_TASK_OUT; | |
1745 | reqtask->out_size = 512; | |
1746 | reqtask->in_size = 0; | |
1747 | ||
1748 | memcpy(task+sizeof(ide_task_request_t)+4*sizeof(int), data, 512); | |
1749 | ||
1750 | if ((retval=ioctl(device, HPTIO_CTL, task))) { | |
1751 | if (retval==-EINVAL) | |
1752 | pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n"); | |
1753 | return -1; | |
1754 | } | |
1755 | return 0; | |
1756 | } | |
1757 | ||
1758 | if (command==STATUS_CHECK){ | |
1759 | int retval; | |
1760 | unsigned const char normal_lo=0x4f, normal_hi=0xc2; | |
1761 | unsigned const char failed_lo=0xf4, failed_hi=0x2c; | |
1762 | buff[4]=normal_lo; | |
1763 | buff[5]=normal_hi; | |
1764 | ||
1765 | hpt[2] = HDIO_DRIVE_TASK; | |
1766 | ||
1767 | if ((retval=ioctl(device, HPTIO_CTL, hpt_buff))) { | |
1768 | if (retval==-EINVAL) { | |
1769 | pout("Error SMART Status command via HDIO_DRIVE_TASK failed"); | |
1770 | pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n"); | |
1771 | } | |
1772 | else | |
1773 | syserror("Error SMART Status command failed"); | |
1774 | return -1; | |
1775 | } | |
1776 | ||
1777 | if (buff[4]==normal_lo && buff[5]==normal_hi) | |
1778 | return 0; | |
1779 | ||
1780 | if (buff[4]==failed_lo && buff[5]==failed_hi) | |
1781 | return 1; | |
1782 | ||
1783 | syserror("Error SMART Status command failed"); | |
1784 | pout("Please get assistance from " PACKAGE_HOMEPAGE "\n"); | |
1785 | pout("Register values returned from SMART Status command are:\n"); | |
1786 | pout("CMD=0x%02x\n",(int)buff[0]); | |
1787 | pout("FR =0x%02x\n",(int)buff[1]); | |
1788 | pout("NS =0x%02x\n",(int)buff[2]); | |
1789 | pout("SC =0x%02x\n",(int)buff[3]); | |
1790 | pout("CL =0x%02x\n",(int)buff[4]); | |
1791 | pout("CH =0x%02x\n",(int)buff[5]); | |
1792 | pout("SEL=0x%02x\n",(int)buff[6]); | |
1793 | return -1; | |
1794 | } | |
1795 | ||
1796 | #if 1 | |
1797 | if (command==IDENTIFY || command==PIDENTIFY) { | |
1798 | unsigned char deviceid[4*sizeof(int)+512*sizeof(char)]; | |
1799 | unsigned int *hpt = (unsigned int *)deviceid; | |
1800 | ||
1801 | hpt[0] = con->hpt_data[0]; // controller id | |
1802 | hpt[1] = con->hpt_data[1]; // channel number | |
1803 | hpt[3] = con->hpt_data[2]; // pmport number | |
1804 | ||
1805 | hpt[2] = HDIO_GET_IDENTITY; | |
1806 | if (!ioctl(device, HPTIO_CTL, deviceid) && (deviceid[4*sizeof(int)] & 0x8000)) | |
1807 | buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE; | |
1808 | } | |
1809 | #endif | |
1810 | ||
1811 | hpt[2] = HDIO_DRIVE_CMD; | |
1812 | if ((ioctl(device, HPTIO_CTL, hpt_buff))) | |
1813 | return -1; | |
1814 | ||
1815 | if (command==CHECK_POWER_MODE) | |
1816 | buff[HDIO_DRIVE_CMD_OFFSET]=buff[2]; | |
1817 | ||
1818 | if (copydata) | |
1819 | memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata); | |
1820 | ||
1821 | return 0; | |
1822 | } | |
1823 | ||
832b75ed GG |
1824 | |
1825 | // Utility function for printing warnings | |
1826 | void printwarning(smart_command_set command){ | |
1827 | static int printed[4]={0,0,0,0}; | |
1828 | const char* message= | |
1829 | "can not be passed through the 3ware 3w-xxxx driver. This can be fixed by\n" | |
1830 | "applying a simple 3w-xxxx driver patch that can be found here:\n" | |
1831 | PACKAGE_HOMEPAGE "\n" | |
1832 | "Alternatively, upgrade your 3w-xxxx driver to version 1.02.00.037 or greater.\n\n"; | |
1833 | ||
1834 | if (command==AUTO_OFFLINE && !printed[0]) { | |
1835 | printed[0]=1; | |
1836 | pout("The SMART AUTO-OFFLINE ENABLE command (smartmontools -o on option/Directive)\n%s", message); | |
1837 | } | |
1838 | else if (command==AUTOSAVE && !printed[1]) { | |
1839 | printed[1]=1; | |
1840 | pout("The SMART AUTOSAVE ENABLE command (smartmontools -S on option/Directive)\n%s", message); | |
1841 | } | |
1842 | else if (command==STATUS_CHECK && !printed[2]) { | |
1843 | printed[2]=1; | |
1844 | pout("The SMART RETURN STATUS return value (smartmontools -H option/Directive)\n%s", message); | |
1845 | } | |
1846 | else if (command==WRITE_LOG && !printed[3]) { | |
1847 | printed[3]=1; | |
1848 | pout("The SMART WRITE LOG command (smartmontools -t selective) only supported via char /dev/tw[ae] interface\n"); | |
1849 | } | |
1850 | ||
1851 | return; | |
1852 | } | |
1853 | ||
1854 | // Guess device type (ata or scsi) based on device name (Linux | |
1855 | // specific) SCSI device name in linux can be sd, sr, scd, st, nst, | |
1856 | // osst, nosst and sg. | |
1857 | static const char * lin_dev_prefix = "/dev/"; | |
1858 | static const char * lin_dev_ata_disk_plus = "h"; | |
1859 | static const char * lin_dev_ata_devfs_disk_plus = "ide/"; | |
1860 | static const char * lin_dev_scsi_devfs_disk_plus = "scsi/"; | |
1861 | static const char * lin_dev_scsi_disk_plus = "s"; | |
1862 | static const char * lin_dev_scsi_tape1 = "ns"; | |
1863 | static const char * lin_dev_scsi_tape2 = "os"; | |
1864 | static const char * lin_dev_scsi_tape3 = "nos"; | |
1865 | static const char * lin_dev_3ware_9000_char = "twa"; | |
1866 | static const char * lin_dev_3ware_678k_char = "twe"; | |
ba59cff1 | 1867 | static const char * lin_dev_cciss_dir = "cciss/"; |
832b75ed GG |
1868 | |
1869 | int guess_device_type(const char * dev_name) { | |
1870 | int len; | |
1871 | int dev_prefix_len = strlen(lin_dev_prefix); | |
1872 | ||
1873 | // if dev_name null, or string length zero | |
1874 | if (!dev_name || !(len = strlen(dev_name))) | |
1875 | return CONTROLLER_UNKNOWN; | |
1876 | ||
1877 | // Remove the leading /dev/... if it's there | |
1878 | if (!strncmp(lin_dev_prefix, dev_name, dev_prefix_len)) { | |
1879 | if (len <= dev_prefix_len) | |
1880 | // if nothing else in the string, unrecognized | |
1881 | return CONTROLLER_UNKNOWN; | |
1882 | // else advance pointer to following characters | |
1883 | dev_name += dev_prefix_len; | |
1884 | } | |
1885 | ||
1886 | // form /dev/h* or h* | |
1887 | if (!strncmp(lin_dev_ata_disk_plus, dev_name, | |
1888 | strlen(lin_dev_ata_disk_plus))) | |
1889 | return CONTROLLER_ATA; | |
1890 | ||
1891 | // form /dev/ide/* or ide/* | |
1892 | if (!strncmp(lin_dev_ata_devfs_disk_plus, dev_name, | |
1893 | strlen(lin_dev_ata_devfs_disk_plus))) | |
1894 | return CONTROLLER_ATA; | |
1895 | ||
1896 | // form /dev/s* or s* | |
1897 | if (!strncmp(lin_dev_scsi_disk_plus, dev_name, | |
1898 | strlen(lin_dev_scsi_disk_plus))) | |
1899 | return CONTROLLER_SCSI; | |
1900 | ||
1901 | // form /dev/scsi/* or scsi/* | |
1902 | if (!strncmp(lin_dev_scsi_devfs_disk_plus, dev_name, | |
1903 | strlen(lin_dev_scsi_devfs_disk_plus))) | |
1904 | return CONTROLLER_SCSI; | |
1905 | ||
1906 | // form /dev/ns* or ns* | |
1907 | if (!strncmp(lin_dev_scsi_tape1, dev_name, | |
1908 | strlen(lin_dev_scsi_tape1))) | |
1909 | return CONTROLLER_SCSI; | |
1910 | ||
1911 | // form /dev/os* or os* | |
1912 | if (!strncmp(lin_dev_scsi_tape2, dev_name, | |
1913 | strlen(lin_dev_scsi_tape2))) | |
1914 | return CONTROLLER_SCSI; | |
1915 | ||
1916 | // form /dev/nos* or nos* | |
1917 | if (!strncmp(lin_dev_scsi_tape3, dev_name, | |
1918 | strlen(lin_dev_scsi_tape3))) | |
1919 | return CONTROLLER_SCSI; | |
1920 | ||
1921 | // form /dev/twa* | |
1922 | if (!strncmp(lin_dev_3ware_9000_char, dev_name, | |
1923 | strlen(lin_dev_3ware_9000_char))) | |
1924 | return CONTROLLER_3WARE_9000_CHAR; | |
1925 | ||
1926 | // form /dev/twe* | |
1927 | if (!strncmp(lin_dev_3ware_678k_char, dev_name, | |
1928 | strlen(lin_dev_3ware_678k_char))) | |
1929 | return CONTROLLER_3WARE_678K_CHAR; | |
ba59cff1 GG |
1930 | // form /dev/cciss* |
1931 | if (!strncmp(lin_dev_cciss_dir, dev_name, | |
1932 | strlen(lin_dev_cciss_dir))) | |
1933 | return CONTROLLER_CCISS; | |
832b75ed GG |
1934 | |
1935 | // we failed to recognize any of the forms | |
1936 | return CONTROLLER_UNKNOWN; | |
1937 | } | |
1938 | ||
1939 | ||
1940 | #if 0 | |
1941 | ||
1942 | [ed@firestorm ed]$ ls -l /dev/discs | |
1943 | total 0 | |
1944 | lr-xr-xr-x 1 root root 30 Dec 31 1969 disc0 -> ../ide/host2/bus0/target0/lun0/ | |
1945 | lr-xr-xr-x 1 root root 30 Dec 31 1969 disc1 -> ../ide/host2/bus1/target0/lun0/ | |
1946 | [ed@firestorm ed]$ ls -l dev/ide/host*/bus*/target*/lun*/disc | |
1947 | ls: dev/ide/host*/bus*/target*/lun*/disc: No such file or directory | |
1948 | [ed@firestorm ed]$ ls -l /dev/ide/host*/bus*/target*/lun*/disc | |
1949 | brw------- 1 root root 33, 0 Dec 31 1969 /dev/ide/host2/bus0/target0/lun0/disc | |
1950 | brw------- 1 root root 34, 0 Dec 31 1969 /dev/ide/host2/bus1/target0/lun0/disc | |
1951 | [ed@firestorm ed]$ ls -l /dev/ide/c*b*t*u* | |
1952 | ls: /dev/ide/c*b*t*u*: No such file or directory | |
1953 | [ed@firestorm ed]$ | |
1954 | Script done on Fri Nov 7 13:46:28 2003 | |
1955 | ||
1956 | #endif |