1: /*
2: * os_linux.cpp
3: *
4: * Home page of code is: http://smartmontools.sourceforge.net
5: *
6: * Copyright (C) 2003-11 Bruce Allen <smartmontools-support@lists.sourceforge.net>
7: * Copyright (C) 2003-11 Doug Gilbert <dgilbert@interlog.com>
8: * Copyright (C) 2008-12 Hank Wu <hank@areca.com.tw>
9: * Copyright (C) 2008 Oliver Bock <brevilo@users.sourceforge.net>
10: * Copyright (C) 2008-12 Christian Franke <smartmontools-support@lists.sourceforge.net>
11: * Copyright (C) 2008 Jordan Hargrave <jordan_hargrave@dell.com>
12: *
13: * Parts of this file are derived from code that was
14: *
15: * Written By: Adam Radford <linux@3ware.com>
16: * Modifications By: Joel Jacobson <linux@3ware.com>
17: * Arnaldo Carvalho de Melo <acme@conectiva.com.br>
18: * Brad Strand <linux@3ware.com>
19: *
20: * Copyright (C) 1999-2003 3ware Inc.
21: *
22: * Kernel compatablity By: Andre Hedrick <andre@suse.com>
23: * Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com>
24: *
25: * Other ars of this file are derived from code that was
26: *
27: * Copyright (C) 1999-2000 Michael Cornwell <cornwell@acm.org>
28: * Copyright (C) 2000 Andre Hedrick <andre@linux-ide.org>
29: *
30: * This program is free software; you can redistribute it and/or modify
31: * it under the terms of the GNU General Public License as published by
32: * the Free Software Foundation; either version 2, or (at your option)
33: * any later version.
34: *
35: * You should have received a copy of the GNU General Public License
36: * (for example COPYING); If not, see <http://www.gnu.org/licenses/>.
37: *
38: * This code was originally developed as a Senior Thesis by Michael Cornwell
39: * at the Concurrent Systems Laboratory (now part of the Storage Systems
40: * Research Center), Jack Baskin School of Engineering, University of
41: * California, Santa Cruz. http://ssrc.soe.ucsc.edu/
42: *
43: */
44:
45: // This file contains the linux-specific IOCTL parts of
46: // smartmontools. It includes one interface routine for ATA devices,
47: // one for SCSI devices, and one for ATA devices behind escalade
48: // controllers.
49:
50: #include "config.h"
51:
52: #include <errno.h>
53: #include <fcntl.h>
54: #include <glob.h>
55:
56: #include <scsi/scsi.h>
57: #include <scsi/scsi_ioctl.h>
58: #include <scsi/sg.h>
59: #include <stdlib.h>
60: #include <string.h>
61: #include <sys/ioctl.h>
62: #include <sys/stat.h>
63: #include <sys/utsname.h>
64: #include <unistd.h>
65: #include <stddef.h> // for offsetof()
66: #include <sys/uio.h>
67: #include <sys/types.h>
68: #include <dirent.h>
69: #ifndef makedev // old versions of types.h do not include sysmacros.h
70: #include <sys/sysmacros.h>
71: #endif
72: #ifdef WITH_SELINUX
73: #include <selinux/selinux.h>
74: #endif
75:
76: #include "int64.h"
77: #include "atacmds.h"
78: #include "os_linux.h"
79: #include "scsicmds.h"
80: #include "utility.h"
81: #include "cciss.h"
82: #include "megaraid.h"
83:
84: #include "dev_interface.h"
85: #include "dev_ata_cmd_set.h"
86: #include "dev_areca.h"
87:
88: #ifndef ENOTSUP
89: #define ENOTSUP ENOSYS
90: #endif
91:
92: #define ARGUSED(x) ((void)(x))
93:
94: const char * os_linux_cpp_cvsid = "$Id: os_linux.cpp,v 1.1.1.4 2013/10/14 07:54:03 misho Exp $"
95: OS_LINUX_H_CVSID;
96: extern unsigned char failuretest_permissive;
97:
98: namespace os_linux { // No need to publish anything, name provided for Doxygen
99:
100: /////////////////////////////////////////////////////////////////////////////
101: /// Shared open/close routines
102:
103: class linux_smart_device
104: : virtual public /*implements*/ smart_device
105: {
106: public:
107: explicit linux_smart_device(int flags, int retry_flags = -1)
108: : smart_device(never_called),
109: m_fd(-1),
110: m_flags(flags), m_retry_flags(retry_flags)
111: { }
112:
113: virtual ~linux_smart_device() throw();
114:
115: virtual bool is_open() const;
116:
117: virtual bool open();
118:
119: virtual bool close();
120:
121: protected:
122: /// Return filedesc for derived classes.
123: int get_fd() const
124: { return m_fd; }
125:
126: void set_fd(int fd)
127: { m_fd = fd; }
128:
129: private:
130: int m_fd; ///< filedesc, -1 if not open.
131: int m_flags; ///< Flags for ::open()
132: int m_retry_flags; ///< Flags to retry ::open(), -1 if no retry
133: };
134:
135: linux_smart_device::~linux_smart_device() throw()
136: {
137: if (m_fd >= 0)
138: ::close(m_fd);
139: }
140:
141: bool linux_smart_device::is_open() const
142: {
143: return (m_fd >= 0);
144: }
145:
146: bool linux_smart_device::open()
147: {
148: m_fd = ::open(get_dev_name(), m_flags);
149:
150: if (m_fd < 0 && errno == EROFS && m_retry_flags != -1)
151: // Retry
152: m_fd = ::open(get_dev_name(), m_retry_flags);
153:
154: if (m_fd < 0) {
155: if (errno == EBUSY && (m_flags & O_EXCL))
156: // device is locked
157: return set_err(EBUSY,
158: "The requested controller is used exclusively by another process!\n"
159: "(e.g. smartctl or smartd)\n"
160: "Please quit the impeding process or try again later...");
161: return set_err((errno==ENOENT || errno==ENOTDIR) ? ENODEV : errno);
162: }
163:
164: if (m_fd >= 0) {
165: // sets FD_CLOEXEC on the opened device file descriptor. The
166: // descriptor is otherwise leaked to other applications (mail
167: // sender) which may be considered a security risk and may result
168: // in AVC messages on SELinux-enabled systems.
169: if (-1 == fcntl(m_fd, F_SETFD, FD_CLOEXEC))
170: // TODO: Provide an error printing routine in class smart_interface
171: pout("fcntl(set FD_CLOEXEC) failed, errno=%d [%s]\n", errno, strerror(errno));
172: }
173:
174: return true;
175: }
176:
177: // equivalent to close(file descriptor)
178: bool linux_smart_device::close()
179: {
180: int fd = m_fd; m_fd = -1;
181: if (::close(fd) < 0)
182: return set_err(errno);
183: return true;
184: }
185:
186: // examples for smartctl
187: static const char smartctl_examples[] =
188: "=================================================== SMARTCTL EXAMPLES =====\n\n"
189: " smartctl --all /dev/hda (Prints all SMART information)\n\n"
190: " smartctl --smart=on --offlineauto=on --saveauto=on /dev/hda\n"
191: " (Enables SMART on first disk)\n\n"
192: " smartctl --test=long /dev/hda (Executes extended disk self-test)\n\n"
193: " smartctl --attributes --log=selftest --quietmode=errorsonly /dev/hda\n"
194: " (Prints Self-Test & Attribute errors)\n"
195: " smartctl --all --device=3ware,2 /dev/sda\n"
196: " smartctl --all --device=3ware,2 /dev/twe0\n"
197: " smartctl --all --device=3ware,2 /dev/twa0\n"
198: " smartctl --all --device=3ware,2 /dev/twl0\n"
199: " (Prints all SMART info for 3rd ATA disk on 3ware RAID controller)\n"
200: " smartctl --all --device=hpt,1/1/3 /dev/sda\n"
201: " (Prints all SMART info for the SATA disk attached to the 3rd PMPort\n"
202: " of the 1st channel on the 1st HighPoint RAID controller)\n"
203: " smartctl --all --device=areca,3/1 /dev/sg2\n"
204: " (Prints all SMART info for 3rd ATA disk of the 1st enclosure\n"
205: " on Areca RAID controller)\n"
206: ;
207:
208: /////////////////////////////////////////////////////////////////////////////
209: /// Linux ATA support
210:
211: class linux_ata_device
212: : public /*implements*/ ata_device_with_command_set,
213: public /*extends*/ linux_smart_device
214: {
215: public:
216: linux_ata_device(smart_interface * intf, const char * dev_name, const char * req_type);
217:
218: protected:
219: virtual int ata_command_interface(smart_command_set command, int select, char * data);
220: };
221:
222: linux_ata_device::linux_ata_device(smart_interface * intf, const char * dev_name, const char * req_type)
223: : smart_device(intf, dev_name, "ata", req_type),
224: linux_smart_device(O_RDONLY | O_NONBLOCK)
225: {
226: }
227:
228: // PURPOSE
229: // This is an interface routine meant to isolate the OS dependent
230: // parts of the code, and to provide a debugging interface. Each
231: // different port and OS needs to provide it's own interface. This
232: // is the linux one.
233: // DETAILED DESCRIPTION OF ARGUMENTS
234: // device: is the file descriptor provided by open()
235: // command: defines the different operations.
236: // select: additional input data if needed (which log, which type of
237: // self-test).
238: // data: location to write output data, if needed (512 bytes).
239: // Note: not all commands use all arguments.
240: // RETURN VALUES
241: // -1 if the command failed
242: // 0 if the command succeeded,
243: // STATUS_CHECK routine:
244: // -1 if the command failed
245: // 0 if the command succeeded and disk SMART status is "OK"
246: // 1 if the command succeeded and disk SMART status is "FAILING"
247:
248: #define BUFFER_LENGTH (4+512)
249:
250: int linux_ata_device::ata_command_interface(smart_command_set command, int select, char * data)
251: {
252: unsigned char buff[BUFFER_LENGTH];
253: // positive: bytes to write to caller. negative: bytes to READ from
254: // caller. zero: non-data command
255: int copydata=0;
256:
257: const int HDIO_DRIVE_CMD_OFFSET = 4;
258:
259: // See struct hd_drive_cmd_hdr in hdreg.h. Before calling ioctl()
260: // buff[0]: ATA COMMAND CODE REGISTER
261: // buff[1]: ATA SECTOR NUMBER REGISTER == LBA LOW REGISTER
262: // buff[2]: ATA FEATURES REGISTER
263: // buff[3]: ATA SECTOR COUNT REGISTER
264:
265: // Note that on return:
266: // buff[2] contains the ATA SECTOR COUNT REGISTER
267:
268: // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes)
269: memset(buff, 0, BUFFER_LENGTH);
270:
271: buff[0]=ATA_SMART_CMD;
272: switch (command){
273: case CHECK_POWER_MODE:
274: buff[0]=ATA_CHECK_POWER_MODE;
275: copydata=1;
276: break;
277: case READ_VALUES:
278: buff[2]=ATA_SMART_READ_VALUES;
279: buff[3]=1;
280: copydata=512;
281: break;
282: case READ_THRESHOLDS:
283: buff[2]=ATA_SMART_READ_THRESHOLDS;
284: buff[1]=buff[3]=1;
285: copydata=512;
286: break;
287: case READ_LOG:
288: buff[2]=ATA_SMART_READ_LOG_SECTOR;
289: buff[1]=select;
290: buff[3]=1;
291: copydata=512;
292: break;
293: case WRITE_LOG:
294: break;
295: case IDENTIFY:
296: buff[0]=ATA_IDENTIFY_DEVICE;
297: buff[3]=1;
298: copydata=512;
299: break;
300: case PIDENTIFY:
301: buff[0]=ATA_IDENTIFY_PACKET_DEVICE;
302: buff[3]=1;
303: copydata=512;
304: break;
305: case ENABLE:
306: buff[2]=ATA_SMART_ENABLE;
307: buff[1]=1;
308: break;
309: case DISABLE:
310: buff[2]=ATA_SMART_DISABLE;
311: buff[1]=1;
312: break;
313: case STATUS:
314: // this command only says if SMART is working. It could be
315: // replaced with STATUS_CHECK below.
316: buff[2]=ATA_SMART_STATUS;
317: break;
318: case AUTO_OFFLINE:
319: // NOTE: According to ATAPI 4 and UP, this command is obsolete
320: // select == 241 for enable but no data transfer. Use TASK ioctl.
321: buff[1]=ATA_SMART_AUTO_OFFLINE;
322: buff[2]=select;
323: break;
324: case AUTOSAVE:
325: // select == 248 for enable but no data transfer. Use TASK ioctl.
326: buff[1]=ATA_SMART_AUTOSAVE;
327: buff[2]=select;
328: break;
329: case IMMEDIATE_OFFLINE:
330: buff[2]=ATA_SMART_IMMEDIATE_OFFLINE;
331: buff[1]=select;
332: break;
333: case STATUS_CHECK:
334: // This command uses HDIO_DRIVE_TASK and has different syntax than
335: // the other commands.
336: buff[1]=ATA_SMART_STATUS;
337: break;
338: default:
339: pout("Unrecognized command %d in linux_ata_command_interface()\n"
340: "Please contact " PACKAGE_BUGREPORT "\n", command);
341: errno=ENOSYS;
342: return -1;
343: }
344:
345: // This command uses the HDIO_DRIVE_TASKFILE ioctl(). This is the
346: // only ioctl() that can be used to WRITE data to the disk.
347: if (command==WRITE_LOG) {
348: unsigned char task[sizeof(ide_task_request_t)+512];
349: ide_task_request_t *reqtask=(ide_task_request_t *) task;
350: task_struct_t *taskfile=(task_struct_t *) reqtask->io_ports;
351: int retval;
352:
353: memset(task, 0, sizeof(task));
354:
355: taskfile->data = 0;
356: taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR;
357: taskfile->sector_count = 1;
358: taskfile->sector_number = select;
359: taskfile->low_cylinder = 0x4f;
360: taskfile->high_cylinder = 0xc2;
361: taskfile->device_head = 0;
362: taskfile->command = ATA_SMART_CMD;
363:
364: reqtask->data_phase = TASKFILE_OUT;
365: reqtask->req_cmd = IDE_DRIVE_TASK_OUT;
366: reqtask->out_size = 512;
367: reqtask->in_size = 0;
368:
369: // copy user data into the task request structure
370: memcpy(task+sizeof(ide_task_request_t), data, 512);
371:
372: if ((retval=ioctl(get_fd(), HDIO_DRIVE_TASKFILE, task))) {
373: if (retval==-EINVAL)
374: pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n");
375: return -1;
376: }
377: return 0;
378: }
379:
380: // There are two different types of ioctls(). The HDIO_DRIVE_TASK
381: // one is this:
382: if (command==STATUS_CHECK || command==AUTOSAVE || command==AUTO_OFFLINE){
383: int retval;
384:
385: // NOT DOCUMENTED in /usr/src/linux/include/linux/hdreg.h. You
386: // have to read the IDE driver source code. Sigh.
387: // buff[0]: ATA COMMAND CODE REGISTER
388: // buff[1]: ATA FEATURES REGISTER
389: // buff[2]: ATA SECTOR_COUNT
390: // buff[3]: ATA SECTOR NUMBER
391: // buff[4]: ATA CYL LO REGISTER
392: // buff[5]: ATA CYL HI REGISTER
393: // buff[6]: ATA DEVICE HEAD
394:
395: unsigned const char normal_lo=0x4f, normal_hi=0xc2;
396: unsigned const char failed_lo=0xf4, failed_hi=0x2c;
397: buff[4]=normal_lo;
398: buff[5]=normal_hi;
399:
400: if ((retval=ioctl(get_fd(), HDIO_DRIVE_TASK, buff))) {
401: if (retval==-EINVAL) {
402: pout("Error SMART Status command via HDIO_DRIVE_TASK failed");
403: pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n");
404: }
405: else
406: syserror("Error SMART Status command failed");
407: return -1;
408: }
409:
410: // Cyl low and Cyl high unchanged means "Good SMART status"
411: if (buff[4]==normal_lo && buff[5]==normal_hi)
412: return 0;
413:
414: // These values mean "Bad SMART status"
415: if (buff[4]==failed_lo && buff[5]==failed_hi)
416: return 1;
417:
418: // We haven't gotten output that makes sense; print out some debugging info
419: syserror("Error SMART Status command failed");
420: pout("Please get assistance from " PACKAGE_HOMEPAGE "\n");
421: pout("Register values returned from SMART Status command are:\n");
422: pout("ST =0x%02x\n",(int)buff[0]);
423: pout("ERR=0x%02x\n",(int)buff[1]);
424: pout("NS =0x%02x\n",(int)buff[2]);
425: pout("SC =0x%02x\n",(int)buff[3]);
426: pout("CL =0x%02x\n",(int)buff[4]);
427: pout("CH =0x%02x\n",(int)buff[5]);
428: pout("SEL=0x%02x\n",(int)buff[6]);
429: return -1;
430: }
431:
432: #if 1
433: // Note to people doing ports to other OSes -- don't worry about
434: // this block -- you can safely ignore it. I have put it here
435: // because under linux when you do IDENTIFY DEVICE to a packet
436: // device, it generates an ugly kernel syslog error message. This
437: // is harmless but frightens users. So this block detects packet
438: // devices and make IDENTIFY DEVICE fail "nicely" without a syslog
439: // error message.
440: //
441: // If you read only the ATA specs, it appears as if a packet device
442: // *might* respond to the IDENTIFY DEVICE command. This is
443: // misleading - it's because around the time that SFF-8020 was
444: // incorporated into the ATA-3/4 standard, the ATA authors were
445: // sloppy. See SFF-8020 and you will see that ATAPI devices have
446: // *always* had IDENTIFY PACKET DEVICE as a mandatory part of their
447: // command set, and return 'Command Aborted' to IDENTIFY DEVICE.
448: if (command==IDENTIFY || command==PIDENTIFY){
449: unsigned short deviceid[256];
450: // check the device identity, as seen when the system was booted
451: // or the device was FIRST registered. This will not be current
452: // if the user has subsequently changed some of the parameters. If
453: // device is a packet device, swap the command interpretations.
454: if (!ioctl(get_fd(), HDIO_GET_IDENTITY, deviceid) && (deviceid[0] & 0x8000))
455: buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE;
456: }
457: #endif
458:
459: // We are now doing the HDIO_DRIVE_CMD type ioctl.
460: if ((ioctl(get_fd(), HDIO_DRIVE_CMD, buff)))
461: return -1;
462:
463: // CHECK POWER MODE command returns information in the Sector Count
464: // register (buff[3]). Copy to return data buffer.
465: if (command==CHECK_POWER_MODE)
466: buff[HDIO_DRIVE_CMD_OFFSET]=buff[2];
467:
468: // if the command returns data then copy it back
469: if (copydata)
470: memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata);
471:
472: return 0;
473: }
474:
475: // >>>>>> Start of general SCSI specific linux code
476:
477: /* Linux specific code.
478: * Historically smartmontools (and smartsuite before it) used the
479: * SCSI_IOCTL_SEND_COMMAND ioctl which is available to all linux device
480: * nodes that use the SCSI subsystem. A better interface has been available
481: * via the SCSI generic (sg) driver but this involves the extra step of
482: * mapping disk devices (e.g. /dev/sda) to the corresponding sg device
483: * (e.g. /dev/sg2). In the linux kernel 2.6 series most of the facilities of
484: * the sg driver have become available via the SG_IO ioctl which is available
485: * on all SCSI devices (on SCSI tape devices from lk 2.6.6).
486: * So the strategy below is to find out if the SG_IO ioctl is available and
487: * if so use it; failing that use the older SCSI_IOCTL_SEND_COMMAND ioctl.
488: * Should work in 2.0, 2.2, 2.4 and 2.6 series linux kernels. */
489:
490: #define MAX_DXFER_LEN 1024 /* can be increased if necessary */
491: #define SEND_IOCTL_RESP_SENSE_LEN 16 /* ioctl limitation */
492: #define SG_IO_RESP_SENSE_LEN 64 /* large enough see buffer */
493: #define LSCSI_DRIVER_MASK 0xf /* mask out "suggestions" */
494: #define LSCSI_DRIVER_SENSE 0x8 /* alternate CHECK CONDITION indication */
495: #define LSCSI_DID_ERROR 0x7 /* Need to work around aacraid driver quirk */
496: #define LSCSI_DRIVER_TIMEOUT 0x6
497: #define LSCSI_DID_TIME_OUT 0x3
498: #define LSCSI_DID_BUS_BUSY 0x2
499: #define LSCSI_DID_NO_CONNECT 0x1
500:
501: #ifndef SCSI_IOCTL_SEND_COMMAND
502: #define SCSI_IOCTL_SEND_COMMAND 1
503: #endif
504:
505: #define SG_IO_PRESENT_UNKNOWN 0
506: #define SG_IO_PRESENT_YES 1
507: #define SG_IO_PRESENT_NO 2
508:
509: static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report,
510: int unknown);
511: static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report);
512:
513: static int sg_io_state = SG_IO_PRESENT_UNKNOWN;
514:
515: /* Preferred implementation for issuing SCSI commands in linux. This
516: * function uses the SG_IO ioctl. Return 0 if command issued successfully
517: * (various status values should still be checked). If the SCSI command
518: * cannot be issued then a negative errno value is returned. */
519: static int sg_io_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report,
520: int unknown)
521: {
522: #ifndef SG_IO
523: ARGUSED(dev_fd); ARGUSED(iop); ARGUSED(report);
524: return -ENOTTY;
525: #else
526: struct sg_io_hdr io_hdr;
527:
528: if (report > 0) {
529: int k, j;
530: const unsigned char * ucp = iop->cmnd;
531: const char * np;
532: char buff[256];
533: const int sz = (int)sizeof(buff);
534:
535: np = scsi_get_opcode_name(ucp[0]);
536: j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>");
537: for (k = 0; k < (int)iop->cmnd_len; ++k)
538: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]);
539: if ((report > 1) &&
540: (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) {
541: int trunc = (iop->dxfer_len > 256) ? 1 : 0;
542:
543: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing "
544: "data, len=%d%s:\n", (int)iop->dxfer_len,
545: (trunc ? " [only first 256 bytes shown]" : ""));
546: dStrHex((const char *)iop->dxferp,
547: (trunc ? 256 : iop->dxfer_len) , 1);
548: }
549: else
550: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n");
551: pout("%s", buff);
552: }
553: memset(&io_hdr, 0, sizeof(struct sg_io_hdr));
554: io_hdr.interface_id = 'S';
555: io_hdr.cmd_len = iop->cmnd_len;
556: io_hdr.mx_sb_len = iop->max_sense_len;
557: io_hdr.dxfer_len = iop->dxfer_len;
558: io_hdr.dxferp = iop->dxferp;
559: io_hdr.cmdp = iop->cmnd;
560: io_hdr.sbp = iop->sensep;
561: /* sg_io_hdr interface timeout has millisecond units. Timeout of 0
562: defaults to 60 seconds. */
563: io_hdr.timeout = ((0 == iop->timeout) ? 60 : iop->timeout) * 1000;
564: switch (iop->dxfer_dir) {
565: case DXFER_NONE:
566: io_hdr.dxfer_direction = SG_DXFER_NONE;
567: break;
568: case DXFER_FROM_DEVICE:
569: io_hdr.dxfer_direction = SG_DXFER_FROM_DEV;
570: break;
571: case DXFER_TO_DEVICE:
572: io_hdr.dxfer_direction = SG_DXFER_TO_DEV;
573: break;
574: default:
575: pout("do_scsi_cmnd_io: bad dxfer_dir\n");
576: return -EINVAL;
577: }
578: iop->resp_sense_len = 0;
579: iop->scsi_status = 0;
580: iop->resid = 0;
581: if (ioctl(dev_fd, SG_IO, &io_hdr) < 0) {
582: if (report && (! unknown))
583: pout(" SG_IO ioctl failed, errno=%d [%s]\n", errno,
584: strerror(errno));
585: return -errno;
586: }
587: iop->resid = io_hdr.resid;
588: iop->scsi_status = io_hdr.status;
589: if (report > 0) {
590: pout(" scsi_status=0x%x, host_status=0x%x, driver_status=0x%x\n"
591: " info=0x%x duration=%d milliseconds resid=%d\n", io_hdr.status,
592: io_hdr.host_status, io_hdr.driver_status, io_hdr.info,
593: io_hdr.duration, io_hdr.resid);
594: if (report > 1) {
595: if (DXFER_FROM_DEVICE == iop->dxfer_dir) {
596: int trunc, len;
597:
598: len = iop->dxfer_len - iop->resid;
599: trunc = (len > 256) ? 1 : 0;
600: if (len > 0) {
601: pout(" Incoming data, len=%d%s:\n", len,
602: (trunc ? " [only first 256 bytes shown]" : ""));
603: dStrHex((const char*)iop->dxferp, (trunc ? 256 : len),
604: 1);
605: } else
606: pout(" Incoming data trimmed to nothing by resid\n");
607: }
608: }
609: }
610:
611: if (io_hdr.info & SG_INFO_CHECK) { /* error or warning */
612: int masked_driver_status = (LSCSI_DRIVER_MASK & io_hdr.driver_status);
613:
614: if (0 != io_hdr.host_status) {
615: if ((LSCSI_DID_NO_CONNECT == io_hdr.host_status) ||
616: (LSCSI_DID_BUS_BUSY == io_hdr.host_status) ||
617: (LSCSI_DID_TIME_OUT == io_hdr.host_status))
618: return -ETIMEDOUT;
619: else
620: /* Check for DID_ERROR - workaround for aacraid driver quirk */
621: if (LSCSI_DID_ERROR != io_hdr.host_status) {
622: return -EIO; /* catch all if not DID_ERR */
623: }
624: }
625: if (0 != masked_driver_status) {
626: if (LSCSI_DRIVER_TIMEOUT == masked_driver_status)
627: return -ETIMEDOUT;
628: else if (LSCSI_DRIVER_SENSE != masked_driver_status)
629: return -EIO;
630: }
631: if (LSCSI_DRIVER_SENSE == masked_driver_status)
632: iop->scsi_status = SCSI_STATUS_CHECK_CONDITION;
633: iop->resp_sense_len = io_hdr.sb_len_wr;
634: if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) &&
635: iop->sensep && (iop->resp_sense_len > 0)) {
636: if (report > 1) {
637: pout(" >>> Sense buffer, len=%d:\n",
638: (int)iop->resp_sense_len);
639: dStrHex((const char *)iop->sensep, iop->resp_sense_len , 1);
640: }
641: }
642: if (report) {
643: if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) {
644: if ((iop->sensep[0] & 0x7f) > 0x71)
645: pout(" status=%x: [desc] sense_key=%x asc=%x ascq=%x\n",
646: iop->scsi_status, iop->sensep[1] & 0xf,
647: iop->sensep[2], iop->sensep[3]);
648: else
649: pout(" status=%x: sense_key=%x asc=%x ascq=%x\n",
650: iop->scsi_status, iop->sensep[2] & 0xf,
651: iop->sensep[12], iop->sensep[13]);
652: }
653: else
654: pout(" status=0x%x\n", iop->scsi_status);
655: }
656: }
657: return 0;
658: #endif
659: }
660:
661: struct linux_ioctl_send_command
662: {
663: int inbufsize;
664: int outbufsize;
665: UINT8 buff[MAX_DXFER_LEN + 16];
666: };
667:
668: /* The Linux SCSI_IOCTL_SEND_COMMAND ioctl is primitive and it doesn't
669: * support: CDB length (guesses it from opcode), resid and timeout.
670: * Patches in Linux 2.4.21 and 2.5.70 to extend SEND DIAGNOSTIC timeout
671: * to 2 hours in order to allow long foreground extended self tests. */
672: static int sisc_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop, int report)
673: {
674: struct linux_ioctl_send_command wrk;
675: int status, buff_offset;
676: size_t len;
677:
678: memcpy(wrk.buff, iop->cmnd, iop->cmnd_len);
679: buff_offset = iop->cmnd_len;
680: if (report > 0) {
681: int k, j;
682: const unsigned char * ucp = iop->cmnd;
683: const char * np;
684: char buff[256];
685: const int sz = (int)sizeof(buff);
686:
687: np = scsi_get_opcode_name(ucp[0]);
688: j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>");
689: for (k = 0; k < (int)iop->cmnd_len; ++k)
690: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]);
691: if ((report > 1) &&
692: (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) {
693: int trunc = (iop->dxfer_len > 256) ? 1 : 0;
694:
695: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing "
696: "data, len=%d%s:\n", (int)iop->dxfer_len,
697: (trunc ? " [only first 256 bytes shown]" : ""));
698: dStrHex((const char *)iop->dxferp,
699: (trunc ? 256 : iop->dxfer_len) , 1);
700: }
701: else
702: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n");
703: pout("%s", buff);
704: }
705: switch (iop->dxfer_dir) {
706: case DXFER_NONE:
707: wrk.inbufsize = 0;
708: wrk.outbufsize = 0;
709: break;
710: case DXFER_FROM_DEVICE:
711: wrk.inbufsize = 0;
712: if (iop->dxfer_len > MAX_DXFER_LEN)
713: return -EINVAL;
714: wrk.outbufsize = iop->dxfer_len;
715: break;
716: case DXFER_TO_DEVICE:
717: if (iop->dxfer_len > MAX_DXFER_LEN)
718: return -EINVAL;
719: memcpy(wrk.buff + buff_offset, iop->dxferp, iop->dxfer_len);
720: wrk.inbufsize = iop->dxfer_len;
721: wrk.outbufsize = 0;
722: break;
723: default:
724: pout("do_scsi_cmnd_io: bad dxfer_dir\n");
725: return -EINVAL;
726: }
727: iop->resp_sense_len = 0;
728: iop->scsi_status = 0;
729: iop->resid = 0;
730: status = ioctl(dev_fd, SCSI_IOCTL_SEND_COMMAND, &wrk);
731: if (-1 == status) {
732: if (report)
733: pout(" SCSI_IOCTL_SEND_COMMAND ioctl failed, errno=%d [%s]\n",
734: errno, strerror(errno));
735: return -errno;
736: }
737: if (0 == status) {
738: if (report > 0)
739: pout(" status=0\n");
740: if (DXFER_FROM_DEVICE == iop->dxfer_dir) {
741: memcpy(iop->dxferp, wrk.buff, iop->dxfer_len);
742: if (report > 1) {
743: int trunc = (iop->dxfer_len > 256) ? 1 : 0;
744:
745: pout(" Incoming data, len=%d%s:\n", (int)iop->dxfer_len,
746: (trunc ? " [only first 256 bytes shown]" : ""));
747: dStrHex((const char*)iop->dxferp,
748: (trunc ? 256 : iop->dxfer_len) , 1);
749: }
750: }
751: return 0;
752: }
753: iop->scsi_status = status & 0x7e; /* bits 0 and 7 used to be for vendors */
754: if (LSCSI_DRIVER_SENSE == ((status >> 24) & 0xf))
755: iop->scsi_status = SCSI_STATUS_CHECK_CONDITION;
756: len = (SEND_IOCTL_RESP_SENSE_LEN < iop->max_sense_len) ?
757: SEND_IOCTL_RESP_SENSE_LEN : iop->max_sense_len;
758: if ((SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) &&
759: iop->sensep && (len > 0)) {
760: memcpy(iop->sensep, wrk.buff, len);
761: iop->resp_sense_len = len;
762: if (report > 1) {
763: pout(" >>> Sense buffer, len=%d:\n", (int)len);
764: dStrHex((const char *)wrk.buff, len , 1);
765: }
766: }
767: if (report) {
768: if (SCSI_STATUS_CHECK_CONDITION == iop->scsi_status) {
769: pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", status & 0xff,
770: wrk.buff[2] & 0xf, wrk.buff[12], wrk.buff[13]);
771: }
772: else
773: pout(" status=0x%x\n", status);
774: }
775: if (iop->scsi_status > 0)
776: return 0;
777: else {
778: if (report > 0)
779: pout(" ioctl status=0x%x but scsi status=0, fail with EIO\n",
780: status);
781: return -EIO; /* give up, assume no device there */
782: }
783: }
784:
785: /* SCSI command transmission interface function, linux version.
786: * Returns 0 if SCSI command successfully launched and response
787: * received. Even when 0 is returned the caller should check
788: * scsi_cmnd_io::scsi_status for SCSI defined errors and warnings
789: * (e.g. CHECK CONDITION). If the SCSI command could not be issued
790: * (e.g. device not present or timeout) or some other problem
791: * (e.g. timeout) then returns a negative errno value */
792: static int do_normal_scsi_cmnd_io(int dev_fd, struct scsi_cmnd_io * iop,
793: int report)
794: {
795: int res;
796:
797: /* implementation relies on static sg_io_state variable. If not
798: * previously set tries the SG_IO ioctl. If that succeeds assume
799: * that SG_IO ioctl functional. If it fails with an errno value
800: * other than ENODEV (no device) or permission then assume
801: * SCSI_IOCTL_SEND_COMMAND is the only option. */
802: switch (sg_io_state) {
803: case SG_IO_PRESENT_UNKNOWN:
804: /* ignore report argument */
805: if (0 == (res = sg_io_cmnd_io(dev_fd, iop, report, 1))) {
806: sg_io_state = SG_IO_PRESENT_YES;
807: return 0;
808: } else if ((-ENODEV == res) || (-EACCES == res) || (-EPERM == res))
809: return res; /* wait until we see a device */
810: sg_io_state = SG_IO_PRESENT_NO;
811: /* drop through by design */
812: case SG_IO_PRESENT_NO:
813: return sisc_cmnd_io(dev_fd, iop, report);
814: case SG_IO_PRESENT_YES:
815: return sg_io_cmnd_io(dev_fd, iop, report, 0);
816: default:
817: pout(">>>> do_scsi_cmnd_io: bad sg_io_state=%d\n", sg_io_state);
818: sg_io_state = SG_IO_PRESENT_UNKNOWN;
819: return -EIO; /* report error and reset state */
820: }
821: }
822:
823: // >>>>>> End of general SCSI specific linux code
824:
825: /////////////////////////////////////////////////////////////////////////////
826: /// Standard SCSI support
827:
828: class linux_scsi_device
829: : public /*implements*/ scsi_device,
830: public /*extends*/ linux_smart_device
831: {
832: public:
833: linux_scsi_device(smart_interface * intf, const char * dev_name,
834: const char * req_type, bool scanning = false);
835:
836: virtual smart_device * autodetect_open();
837:
838: virtual bool scsi_pass_through(scsi_cmnd_io * iop);
839:
840: private:
841: bool m_scanning; ///< true if created within scan_smart_devices
842: };
843:
844: linux_scsi_device::linux_scsi_device(smart_interface * intf,
845: const char * dev_name, const char * req_type, bool scanning /*= false*/)
846: : smart_device(intf, dev_name, "scsi", req_type),
847: // If opened with O_RDWR, a SATA disk in standby mode
848: // may spin-up after device close().
849: linux_smart_device(O_RDONLY | O_NONBLOCK),
850: m_scanning(scanning)
851: {
852: }
853:
854: bool linux_scsi_device::scsi_pass_through(scsi_cmnd_io * iop)
855: {
856: int status = do_normal_scsi_cmnd_io(get_fd(), iop, scsi_debugmode);
857: if (status < 0)
858: return set_err(-status);
859: return true;
860: }
861:
862: /////////////////////////////////////////////////////////////////////////////
863: /// LSI MegaRAID support
864:
865: class linux_megaraid_device
866: : public /* implements */ scsi_device,
867: public /* extends */ linux_smart_device
868: {
869: public:
870: linux_megaraid_device(smart_interface *intf, const char *name,
871: unsigned int bus, unsigned int tgt);
872:
873: virtual ~linux_megaraid_device() throw();
874:
875: virtual smart_device * autodetect_open();
876:
877: virtual bool open();
878: virtual bool close();
879:
880: virtual bool scsi_pass_through(scsi_cmnd_io *iop);
881:
882: private:
883: unsigned int m_disknum;
884: unsigned int m_busnum;
885: unsigned int m_hba;
886: int m_fd;
887:
888: bool (linux_megaraid_device::*pt_cmd)(int cdblen, void *cdb, int dataLen, void *data,
889: int senseLen, void *sense, int report, int direction);
890: bool megasas_cmd(int cdbLen, void *cdb, int dataLen, void *data,
891: int senseLen, void *sense, int report, int direction);
892: bool megadev_cmd(int cdbLen, void *cdb, int dataLen, void *data,
893: int senseLen, void *sense, int report, int direction);
894: };
895:
896: linux_megaraid_device::linux_megaraid_device(smart_interface *intf,
897: const char *dev_name, unsigned int bus, unsigned int tgt)
898: : smart_device(intf, dev_name, "megaraid", "megaraid"),
899: linux_smart_device(O_RDWR | O_NONBLOCK),
900: m_disknum(tgt), m_busnum(bus), m_hba(0),
901: m_fd(-1), pt_cmd(0)
902: {
903: set_info().info_name = strprintf("%s [megaraid_disk_%02d]", dev_name, m_disknum);
904: set_info().dev_type = strprintf("megaraid,%d", tgt);
905: }
906:
907: linux_megaraid_device::~linux_megaraid_device() throw()
908: {
909: if (m_fd >= 0)
910: ::close(m_fd);
911: }
912:
913: smart_device * linux_megaraid_device::autodetect_open()
914: {
915: int report = scsi_debugmode;
916:
917: // Open device
918: if (!open())
919: return this;
920:
921: // The code below is based on smartd.cpp:SCSIFilterKnown()
922: if (strcmp(get_req_type(), "megaraid"))
923: return this;
924:
925: // Get INQUIRY
926: unsigned char req_buff[64] = {0, };
927: int req_len = 36;
928: if (scsiStdInquiry(this, req_buff, req_len)) {
929: close();
930: set_err(EIO, "INQUIRY failed");
931: return this;
932: }
933:
934: int avail_len = req_buff[4] + 5;
935: int len = (avail_len < req_len ? avail_len : req_len);
936: if (len < 36)
937: return this;
938:
939: if (report)
940: pout("Got MegaRAID inquiry.. %s\n", req_buff+8);
941:
942: // Use INQUIRY to detect type
943: {
944: // SAT?
945: ata_device * newdev = smi()->autodetect_sat_device(this, req_buff, len);
946: if (newdev) // NOTE: 'this' is now owned by '*newdev'
947: return newdev;
948: }
949:
950: // Nothing special found
951: return this;
952: }
953:
954: bool linux_megaraid_device::open()
955: {
956: char line[128];
957: int mjr;
958: int report = scsi_debugmode;
959:
960: if(sscanf(get_dev_name(),"/dev/bus/%d", &m_hba) == 0) {
961: if (!linux_smart_device::open())
962: return false;
963: /* Get device HBA */
964: struct sg_scsi_id sgid;
965: if (ioctl(get_fd(), SG_GET_SCSI_ID, &sgid) == 0) {
966: m_hba = sgid.host_no;
967: }
968: else if (ioctl(get_fd(), SCSI_IOCTL_GET_BUS_NUMBER, &m_hba) != 0) {
969: int err = errno;
970: linux_smart_device::close();
971: return set_err(err, "can't get bus number");
972: } // we dont need this device anymore
973: linux_smart_device::close();
974: }
975: /* Perform mknod of device ioctl node */
976: FILE * fp = fopen("/proc/devices", "r");
977: while (fgets(line, sizeof(line), fp) != NULL) {
978: int n1 = 0;
979: if (sscanf(line, "%d megaraid_sas_ioctl%n", &mjr, &n1) == 1 && n1 == 22) {
980: n1=mknod("/dev/megaraid_sas_ioctl_node", S_IFCHR, makedev(mjr, 0));
981: if(report > 0)
982: pout("Creating /dev/megaraid_sas_ioctl_node = %d\n", n1 >= 0 ? 0 : errno);
983: if (n1 >= 0 || errno == EEXIST)
984: break;
985: }
986: else if (sscanf(line, "%d megadev%n", &mjr, &n1) == 1 && n1 == 11) {
987: n1=mknod("/dev/megadev0", S_IFCHR, makedev(mjr, 0));
988: if(report > 0)
989: pout("Creating /dev/megadev0 = %d\n", n1 >= 0 ? 0 : errno);
990: if (n1 >= 0 || errno == EEXIST)
991: break;
992: }
993: }
994: fclose(fp);
995:
996: /* Open Device IOCTL node */
997: if ((m_fd = ::open("/dev/megaraid_sas_ioctl_node", O_RDWR)) >= 0) {
998: pt_cmd = &linux_megaraid_device::megasas_cmd;
999: }
1000: else if ((m_fd = ::open("/dev/megadev0", O_RDWR)) >= 0) {
1001: pt_cmd = &linux_megaraid_device::megadev_cmd;
1002: }
1003: else {
1004: int err = errno;
1005: linux_smart_device::close();
1006: return set_err(err, "cannot open /dev/megaraid_sas_ioctl_node or /dev/megadev0");
1007: }
1008: set_fd(m_fd);
1009: return true;
1010: }
1011:
1012: bool linux_megaraid_device::close()
1013: {
1014: if (m_fd >= 0)
1015: ::close(m_fd);
1016: m_fd = -1; m_hba = 0; pt_cmd = 0;
1017: set_fd(m_fd);
1018: return true;
1019: }
1020:
1021: bool linux_megaraid_device::scsi_pass_through(scsi_cmnd_io *iop)
1022: {
1023: int report = scsi_debugmode;
1024:
1025: if (report > 0) {
1026: int k, j;
1027: const unsigned char * ucp = iop->cmnd;
1028: const char * np;
1029: char buff[256];
1030: const int sz = (int)sizeof(buff);
1031:
1032: np = scsi_get_opcode_name(ucp[0]);
1033: j = snprintf(buff, sz, " [%s: ", np ? np : "<unknown opcode>");
1034: for (k = 0; k < (int)iop->cmnd_len; ++k)
1035: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "%02x ", ucp[k]);
1036: if ((report > 1) &&
1037: (DXFER_TO_DEVICE == iop->dxfer_dir) && (iop->dxferp)) {
1038: int trunc = (iop->dxfer_len > 256) ? 1 : 0;
1039:
1040: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n Outgoing "
1041: "data, len=%d%s:\n", (int)iop->dxfer_len,
1042: (trunc ? " [only first 256 bytes shown]" : ""));
1043: dStrHex((const char *)iop->dxferp,
1044: (trunc ? 256 : iop->dxfer_len) , 1);
1045: }
1046: else
1047: j += snprintf(&buff[j], (sz > j ? (sz - j) : 0), "]\n");
1048: pout("%s", buff);
1049: }
1050:
1051: // Controller rejects Test Unit Ready
1052: if (iop->cmnd[0] == 0x00)
1053: return true;
1054:
1055: if (iop->cmnd[0] == SAT_ATA_PASSTHROUGH_12 || iop->cmnd[0] == SAT_ATA_PASSTHROUGH_16) {
1056: // Controller does not return ATA output registers in SAT sense data
1057: if (iop->cmnd[2] & (1 << 5)) // chk_cond
1058: return set_err(ENOSYS, "ATA return descriptor not supported by controller firmware");
1059: }
1060: // SMART WRITE LOG SECTOR causing media errors
1061: if ((iop->cmnd[0] == SAT_ATA_PASSTHROUGH_16 // SAT16 WRITE LOG
1062: && iop->cmnd[14] == ATA_SMART_CMD && iop->cmnd[3]==0 && iop->cmnd[4] == ATA_SMART_WRITE_LOG_SECTOR) ||
1063: (iop->cmnd[0] == SAT_ATA_PASSTHROUGH_12 // SAT12 WRITE LOG
1064: && iop->cmnd[9] == ATA_SMART_CMD && iop->cmnd[3] == ATA_SMART_WRITE_LOG_SECTOR))
1065: {
1066: if(!failuretest_permissive)
1067: return set_err(ENOSYS, "SMART WRITE LOG SECTOR may cause problems, try with -T permissive to force");
1068: }
1069: if (pt_cmd == NULL)
1070: return false;
1071: return (this->*pt_cmd)(iop->cmnd_len, iop->cmnd,
1072: iop->dxfer_len, iop->dxferp,
1073: iop->max_sense_len, iop->sensep, report, iop->dxfer_dir);
1074: }
1075:
1076: /* Issue passthrough scsi command to PERC5/6 controllers */
1077: bool linux_megaraid_device::megasas_cmd(int cdbLen, void *cdb,
1078: int dataLen, void *data,
1079: int /*senseLen*/, void * /*sense*/, int /*report*/, int dxfer_dir)
1080: {
1081: struct megasas_pthru_frame *pthru;
1082: struct megasas_iocpacket uio;
1083: int rc;
1084:
1085: memset(&uio, 0, sizeof(uio));
1086: pthru = &uio.frame.pthru;
1087: pthru->cmd = MFI_CMD_PD_SCSI_IO;
1088: pthru->cmd_status = 0xFF;
1089: pthru->scsi_status = 0x0;
1090: pthru->target_id = m_disknum;
1091: pthru->lun = 0;
1092: pthru->cdb_len = cdbLen;
1093: pthru->timeout = 0;
1094: switch (dxfer_dir) {
1095: case DXFER_NONE:
1096: pthru->flags = MFI_FRAME_DIR_NONE;
1097: break;
1098: case DXFER_FROM_DEVICE:
1099: pthru->flags = MFI_FRAME_DIR_READ;
1100: break;
1101: case DXFER_TO_DEVICE:
1102: pthru->flags = MFI_FRAME_DIR_WRITE;
1103: break;
1104: default:
1105: pout("megasas_cmd: bad dxfer_dir\n");
1106: return set_err(EINVAL, "megasas_cmd: bad dxfer_dir\n");
1107: }
1108:
1109: if (dataLen > 0) {
1110: pthru->sge_count = 1;
1111: pthru->data_xfer_len = dataLen;
1112: pthru->sgl.sge32[0].phys_addr = (intptr_t)data;
1113: pthru->sgl.sge32[0].length = (uint32_t)dataLen;
1114: }
1115: memcpy(pthru->cdb, cdb, cdbLen);
1116:
1117: uio.host_no = m_hba;
1118: if (dataLen > 0) {
1119: uio.sge_count = 1;
1120: uio.sgl_off = offsetof(struct megasas_pthru_frame, sgl);
1121: uio.sgl[0].iov_base = data;
1122: uio.sgl[0].iov_len = dataLen;
1123: }
1124:
1125: rc = 0;
1126: errno = 0;
1127: rc = ioctl(m_fd, MEGASAS_IOC_FIRMWARE, &uio);
1128: if (pthru->cmd_status || rc != 0) {
1129: if (pthru->cmd_status == 12) {
1130: return set_err(EIO, "megasas_cmd: Device %d does not exist\n", m_disknum);
1131: }
1132: return set_err((errno ? errno : EIO), "megasas_cmd result: %d.%d = %d/%d",
1133: m_hba, m_disknum, errno,
1134: pthru->cmd_status);
1135: }
1136: return true;
1137: }
1138:
1139: /* Issue passthrough scsi commands to PERC2/3/4 controllers */
1140: bool linux_megaraid_device::megadev_cmd(int cdbLen, void *cdb,
1141: int dataLen, void *data,
1142: int /*senseLen*/, void * /*sense*/, int /*report*/, int /* dir */)
1143: {
1144: struct uioctl_t uio;
1145: int rc;
1146:
1147: /* Don't issue to the controller */
1148: if (m_disknum == 7)
1149: return false;
1150:
1151: memset(&uio, 0, sizeof(uio));
1152: uio.inlen = dataLen;
1153: uio.outlen = dataLen;
1154:
1155: memset(data, 0, dataLen);
1156: uio.ui.fcs.opcode = 0x80; // M_RD_IOCTL_CMD
1157: uio.ui.fcs.adapno = MKADAP(m_hba);
1158:
1159: uio.data.pointer = (uint8_t *)data;
1160:
1161: uio.mbox.cmd = MEGA_MBOXCMD_PASSTHRU;
1162: uio.mbox.xferaddr = (intptr_t)&uio.pthru;
1163:
1164: uio.pthru.ars = 1;
1165: uio.pthru.timeout = 2;
1166: uio.pthru.channel = 0;
1167: uio.pthru.target = m_disknum;
1168: uio.pthru.cdblen = cdbLen;
1169: uio.pthru.reqsenselen = MAX_REQ_SENSE_LEN;
1170: uio.pthru.dataxferaddr = (intptr_t)data;
1171: uio.pthru.dataxferlen = dataLen;
1172: memcpy(uio.pthru.cdb, cdb, cdbLen);
1173:
1174: rc=ioctl(m_fd, MEGAIOCCMD, &uio);
1175: if (uio.pthru.scsistatus || rc != 0) {
1176: return set_err((errno ? errno : EIO), "megadev_cmd result: %d.%d = %d/%d",
1177: m_hba, m_disknum, errno,
1178: uio.pthru.scsistatus);
1179: }
1180: return true;
1181: }
1182:
1183: /////////////////////////////////////////////////////////////////////////////
1184: /// CCISS RAID support
1185:
1186: #ifdef HAVE_LINUX_CCISS_IOCTL_H
1187:
1188: class linux_cciss_device
1189: : public /*implements*/ scsi_device,
1190: public /*extends*/ linux_smart_device
1191: {
1192: public:
1193: linux_cciss_device(smart_interface * intf, const char * name, unsigned char disknum);
1194:
1195: virtual bool scsi_pass_through(scsi_cmnd_io * iop);
1196:
1197: private:
1198: unsigned char m_disknum; ///< Disk number.
1199: };
1200:
1201: linux_cciss_device::linux_cciss_device(smart_interface * intf,
1202: const char * dev_name, unsigned char disknum)
1203: : smart_device(intf, dev_name, "cciss", "cciss"),
1204: linux_smart_device(O_RDWR | O_NONBLOCK),
1205: m_disknum(disknum)
1206: {
1207: set_info().info_name = strprintf("%s [cciss_disk_%02d]", dev_name, disknum);
1208: }
1209:
1210: bool linux_cciss_device::scsi_pass_through(scsi_cmnd_io * iop)
1211: {
1212: int status = cciss_io_interface(get_fd(), m_disknum, iop, scsi_debugmode);
1213: if (status < 0)
1214: return set_err(-status);
1215: return true;
1216: }
1217:
1218: #endif // HAVE_LINUX_CCISS_IOCTL_H
1219:
1220: /////////////////////////////////////////////////////////////////////////////
1221: /// AMCC/3ware RAID support
1222:
1223: class linux_escalade_device
1224: : public /*implements*/ ata_device,
1225: public /*extends*/ linux_smart_device
1226: {
1227: public:
1228: enum escalade_type_t {
1229: AMCC_3WARE_678K,
1230: AMCC_3WARE_678K_CHAR,
1231: AMCC_3WARE_9000_CHAR,
1232: AMCC_3WARE_9700_CHAR
1233: };
1234:
1235: linux_escalade_device(smart_interface * intf, const char * dev_name,
1236: escalade_type_t escalade_type, int disknum);
1237:
1238: virtual bool open();
1239:
1240: virtual bool ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out);
1241:
1242: private:
1243: escalade_type_t m_escalade_type; ///< Controller type
1244: int m_disknum; ///< Disk number.
1245: };
1246:
1247: linux_escalade_device::linux_escalade_device(smart_interface * intf, const char * dev_name,
1248: escalade_type_t escalade_type, int disknum)
1249: : smart_device(intf, dev_name, "3ware", "3ware"),
1250: linux_smart_device(O_RDONLY | O_NONBLOCK),
1251: m_escalade_type(escalade_type), m_disknum(disknum)
1252: {
1253: set_info().info_name = strprintf("%s [3ware_disk_%02d]", dev_name, disknum);
1254: }
1255:
1256: /* This function will setup and fix device nodes for a 3ware controller. */
1257: #define MAJOR_STRING_LENGTH 3
1258: #define DEVICE_STRING_LENGTH 32
1259: #define NODE_STRING_LENGTH 16
1260: static int setup_3ware_nodes(const char *nodename, const char *driver_name)
1261: {
1262: int tw_major = 0;
1263: int index = 0;
1264: char majorstring[MAJOR_STRING_LENGTH+1];
1265: char device_name[DEVICE_STRING_LENGTH+1];
1266: char nodestring[NODE_STRING_LENGTH];
1267: struct stat stat_buf;
1268: FILE *file;
1269: int retval = 0;
1270: #ifdef WITH_SELINUX
1271: security_context_t orig_context = NULL;
1272: security_context_t node_context = NULL;
1273: int selinux_enabled = is_selinux_enabled();
1274: int selinux_enforced = security_getenforce();
1275: #endif
1276:
1277: /* First try to open up /proc/devices */
1278: if (!(file = fopen("/proc/devices", "r"))) {
1279: pout("Error opening /proc/devices to check/create 3ware device nodes\n");
1280: syserror("fopen");
1281: return 0; // don't fail here: user might not have /proc !
1282: }
1283:
1284: /* Attempt to get device major number */
1285: while (EOF != fscanf(file, "%3s %32s", majorstring, device_name)) {
1286: majorstring[MAJOR_STRING_LENGTH]='\0';
1287: device_name[DEVICE_STRING_LENGTH]='\0';
1288: if (!strncmp(device_name, nodename, DEVICE_STRING_LENGTH)) {
1289: tw_major = atoi(majorstring);
1290: break;
1291: }
1292: }
1293: fclose(file);
1294:
1295: /* See if we found a major device number */
1296: if (!tw_major) {
1297: pout("No major number for /dev/%s listed in /proc/devices. Is the %s driver loaded?\n", nodename, driver_name);
1298: return 2;
1299: }
1300: #ifdef WITH_SELINUX
1301: /* Prepare a database of contexts for files in /dev
1302: * and save the current context */
1303: if (selinux_enabled) {
1304: if (matchpathcon_init_prefix(NULL, "/dev") < 0)
1305: pout("Error initializing contexts database for /dev");
1306: if (getfscreatecon(&orig_context) < 0) {
1307: pout("Error retrieving original SELinux fscreate context");
1308: if (selinux_enforced)
1309: matchpathcon_fini();
1310: return 6;
1311: }
1312: }
1313: #endif
1314: /* Now check if nodes are correct */
1315: for (index=0; index<16; index++) {
1316: snprintf(nodestring, sizeof(nodestring), "/dev/%s%d", nodename, index);
1317: #ifdef WITH_SELINUX
1318: /* Get context of the node and set it as the default */
1319: if (selinux_enabled) {
1320: if (matchpathcon(nodestring, S_IRUSR | S_IWUSR, &node_context) < 0) {
1321: pout("Could not retrieve context for %s", nodestring);
1322: if (selinux_enforced) {
1323: retval = 6;
1324: break;
1325: }
1326: }
1327: if (setfscreatecon(node_context) < 0) {
1328: pout ("Error setting default fscreate context");
1329: if (selinux_enforced) {
1330: retval = 6;
1331: break;
1332: }
1333: }
1334: }
1335: #endif
1336: /* Try to stat the node */
1337: if ((stat(nodestring, &stat_buf))) {
1338: pout("Node %s does not exist and must be created. Check the udev rules.\n", nodestring);
1339: /* Create a new node if it doesn't exist */
1340: if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) {
1341: pout("problem creating 3ware device nodes %s", nodestring);
1342: syserror("mknod");
1343: retval = 3;
1344: break;
1345: } else {
1346: #ifdef WITH_SELINUX
1347: if (selinux_enabled && node_context) {
1348: freecon(node_context);
1349: node_context = NULL;
1350: }
1351: #endif
1352: continue;
1353: }
1354: }
1355:
1356: /* See if nodes major and minor numbers are correct */
1357: if ((tw_major != (int)(major(stat_buf.st_rdev))) ||
1358: (index != (int)(minor(stat_buf.st_rdev))) ||
1359: (!S_ISCHR(stat_buf.st_mode))) {
1360: pout("Node %s has wrong major/minor number and must be created anew."
1361: " Check the udev rules.\n", nodestring);
1362: /* Delete the old node */
1363: if (unlink(nodestring)) {
1364: pout("problem unlinking stale 3ware device node %s", nodestring);
1365: syserror("unlink");
1366: retval = 4;
1367: break;
1368: }
1369:
1370: /* Make a new node */
1371: if (mknod(nodestring, S_IFCHR|0600, makedev(tw_major, index))) {
1372: pout("problem creating 3ware device nodes %s", nodestring);
1373: syserror("mknod");
1374: retval = 5;
1375: break;
1376: }
1377: }
1378: #ifdef WITH_SELINUX
1379: if (selinux_enabled && node_context) {
1380: freecon(node_context);
1381: node_context = NULL;
1382: }
1383: #endif
1384: }
1385:
1386: #ifdef WITH_SELINUX
1387: if (selinux_enabled) {
1388: if(setfscreatecon(orig_context) < 0) {
1389: pout("Error re-setting original fscreate context");
1390: if (selinux_enforced)
1391: retval = 6;
1392: }
1393: if(orig_context)
1394: freecon(orig_context);
1395: if(node_context)
1396: freecon(node_context);
1397: matchpathcon_fini();
1398: }
1399: #endif
1400: return retval;
1401: }
1402:
1403: bool linux_escalade_device::open()
1404: {
1405: if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR ||
1406: m_escalade_type == AMCC_3WARE_678K_CHAR) {
1407: // the device nodes for these controllers are dynamically assigned,
1408: // so we need to check that they exist with the correct major
1409: // numbers and if not, create them
1410: const char * node = (m_escalade_type == AMCC_3WARE_9700_CHAR ? "twl" :
1411: m_escalade_type == AMCC_3WARE_9000_CHAR ? "twa" :
1412: "twe" );
1413: const char * driver = (m_escalade_type == AMCC_3WARE_9700_CHAR ? "3w-sas" :
1414: m_escalade_type == AMCC_3WARE_9000_CHAR ? "3w-9xxx" :
1415: "3w-xxxx" );
1416: if (setup_3ware_nodes(node, driver))
1417: return set_err((errno ? errno : ENXIO), "setup_3ware_nodes(\"%s\", \"%s\") failed", node, driver);
1418: }
1419: // Continue with default open
1420: return linux_smart_device::open();
1421: }
1422:
1423: // TODO: Function no longer useful
1424: //void printwarning(smart_command_set command);
1425:
1426: // PURPOSE
1427: // This is an interface routine meant to isolate the OS dependent
1428: // parts of the code, and to provide a debugging interface. Each
1429: // different port and OS needs to provide it's own interface. This
1430: // is the linux interface to the 3ware 3w-xxxx driver. It allows ATA
1431: // commands to be passed through the SCSI driver.
1432: // DETAILED DESCRIPTION OF ARGUMENTS
1433: // fd: is the file descriptor provided by open()
1434: // disknum is the disk number (0 to 15) in the RAID array
1435: // escalade_type indicates the type of controller type, and if scsi or char interface is used
1436: // command: defines the different operations.
1437: // select: additional input data if needed (which log, which type of
1438: // self-test).
1439: // data: location to write output data, if needed (512 bytes).
1440: // Note: not all commands use all arguments.
1441: // RETURN VALUES
1442: // -1 if the command failed
1443: // 0 if the command succeeded,
1444: // STATUS_CHECK routine:
1445: // -1 if the command failed
1446: // 0 if the command succeeded and disk SMART status is "OK"
1447: // 1 if the command succeeded and disk SMART status is "FAILING"
1448:
1449: /* 512 is the max payload size: increase if needed */
1450: #define BUFFER_LEN_678K ( sizeof(TW_Ioctl) ) // 1044 unpacked, 1041 packed
1451: #define BUFFER_LEN_678K_CHAR ( sizeof(TW_New_Ioctl)+512-1 ) // 1539 unpacked, 1536 packed
1452: #define BUFFER_LEN_9000 ( sizeof(TW_Ioctl_Buf_Apache)+512-1 ) // 2051 unpacked, 2048 packed
1453: #define TW_IOCTL_BUFFER_SIZE ( MAX(MAX(BUFFER_LEN_678K, BUFFER_LEN_9000), BUFFER_LEN_678K_CHAR) )
1454:
1455: bool linux_escalade_device::ata_pass_through(const ata_cmd_in & in, ata_cmd_out & out)
1456: {
1457: if (!ata_cmd_is_ok(in,
1458: true, // data_out_support
1459: false, // TODO: multi_sector_support
1460: true) // ata_48bit_support
1461: )
1462: return false;
1463:
1464: // Used by both the SCSI and char interfaces
1465: TW_Passthru *passthru=NULL;
1466: char ioctl_buffer[TW_IOCTL_BUFFER_SIZE];
1467:
1468: // only used for SCSI device interface
1469: TW_Ioctl *tw_ioctl=NULL;
1470: TW_Output *tw_output=NULL;
1471:
1472: // only used for 6000/7000/8000 char device interface
1473: TW_New_Ioctl *tw_ioctl_char=NULL;
1474:
1475: // only used for 9000 character device interface
1476: TW_Ioctl_Buf_Apache *tw_ioctl_apache=NULL;
1477:
1478: memset(ioctl_buffer, 0, TW_IOCTL_BUFFER_SIZE);
1479:
1480: // TODO: Handle controller differences by different classes
1481: if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR) {
1482: tw_ioctl_apache = (TW_Ioctl_Buf_Apache *)ioctl_buffer;
1483: tw_ioctl_apache->driver_command.control_code = TW_IOCTL_FIRMWARE_PASS_THROUGH;
1484: tw_ioctl_apache->driver_command.buffer_length = 512; /* payload size */
1485: passthru = (TW_Passthru *)&(tw_ioctl_apache->firmware_command.command.oldcommand);
1486: }
1487: else if (m_escalade_type==AMCC_3WARE_678K_CHAR) {
1488: tw_ioctl_char = (TW_New_Ioctl *)ioctl_buffer;
1489: tw_ioctl_char->data_buffer_length = 512;
1490: passthru = (TW_Passthru *)&(tw_ioctl_char->firmware_command);
1491: }
1492: else if (m_escalade_type==AMCC_3WARE_678K) {
1493: tw_ioctl = (TW_Ioctl *)ioctl_buffer;
1494: tw_ioctl->cdb[0] = TW_IOCTL;
1495: tw_ioctl->opcode = TW_ATA_PASSTHRU;
1496: tw_ioctl->input_length = 512; // correct even for non-data commands
1497: tw_ioctl->output_length = 512; // correct even for non-data commands
1498: tw_output = (TW_Output *)tw_ioctl;
1499: passthru = (TW_Passthru *)&(tw_ioctl->input_data);
1500: }
1501: else {
1502: return set_err(ENOSYS,
1503: "Unrecognized escalade_type %d in linux_3ware_command_interface(disk %d)\n"
1504: "Please contact " PACKAGE_BUGREPORT "\n", (int)m_escalade_type, m_disknum);
1505: }
1506:
1507: // Same for (almost) all commands - but some reset below
1508: passthru->byte0.opcode = TW_OP_ATA_PASSTHRU;
1509: passthru->request_id = 0xFF;
1510: passthru->unit = m_disknum;
1511: passthru->status = 0;
1512: passthru->flags = 0x1;
1513:
1514: // Set registers
1515: {
1516: const ata_in_regs_48bit & r = in.in_regs;
1517: passthru->features = r.features_16;
1518: passthru->sector_count = r.sector_count_16;
1519: passthru->sector_num = r.lba_low_16;
1520: passthru->cylinder_lo = r.lba_mid_16;
1521: passthru->cylinder_hi = r.lba_high_16;
1522: passthru->drive_head = r.device;
1523: passthru->command = r.command;
1524: }
1525:
1526: // Is this a command that reads or returns 512 bytes?
1527: // passthru->param values are:
1528: // 0x0 - non data command without TFR write check,
1529: // 0x8 - non data command with TFR write check,
1530: // 0xD - data command that returns data to host from device
1531: // 0xF - data command that writes data from host to device
1532: // passthru->size values are 0x5 for non-data and 0x07 for data
1533: bool readdata = false;
1534: if (in.direction == ata_cmd_in::data_in) {
1535: readdata=true;
1536: passthru->byte0.sgloff = 0x5;
1537: passthru->size = 0x7; // TODO: Other value for multi-sector ?
1538: passthru->param = 0xD;
1539: // For 64-bit to work correctly, up the size of the command packet
1540: // in dwords by 1 to account for the 64-bit single sgl 'address'
1541: // field. Note that this doesn't agree with the typedefs but it's
1542: // right (agree with kernel driver behavior/typedefs).
1543: if ((m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR)
1544: && sizeof(long) == 8)
1545: passthru->size++;
1546: }
1547: else if (in.direction == ata_cmd_in::no_data) {
1548: // Non data command -- but doesn't use large sector
1549: // count register values.
1550: passthru->byte0.sgloff = 0x0;
1551: passthru->size = 0x5;
1552: passthru->param = 0x8;
1553: passthru->sector_count = 0x0;
1554: }
1555: else if (in.direction == ata_cmd_in::data_out) {
1556: if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR)
1557: memcpy(tw_ioctl_apache->data_buffer, in.buffer, in.size);
1558: else if (m_escalade_type == AMCC_3WARE_678K_CHAR)
1559: memcpy(tw_ioctl_char->data_buffer, in.buffer, in.size);
1560: else {
1561: // COMMAND NOT SUPPORTED VIA SCSI IOCTL INTERFACE
1562: // memcpy(tw_output->output_data, data, 512);
1563: // printwarning(command); // TODO: Parameter no longer valid
1564: return set_err(ENOTSUP, "DATA OUT not supported for this 3ware controller type");
1565: }
1566: passthru->byte0.sgloff = 0x5;
1567: passthru->size = 0x7; // TODO: Other value for multi-sector ?
1568: passthru->param = 0xF; // PIO data write
1569: if ((m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR)
1570: && sizeof(long) == 8)
1571: passthru->size++;
1572: }
1573: else
1574: return set_err(EINVAL);
1575:
1576: // Now send the command down through an ioctl()
1577: int ioctlreturn;
1578: if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR)
1579: ioctlreturn=ioctl(get_fd(), TW_IOCTL_FIRMWARE_PASS_THROUGH, tw_ioctl_apache);
1580: else if (m_escalade_type==AMCC_3WARE_678K_CHAR)
1581: ioctlreturn=ioctl(get_fd(), TW_CMD_PACKET_WITH_DATA, tw_ioctl_char);
1582: else
1583: ioctlreturn=ioctl(get_fd(), SCSI_IOCTL_SEND_COMMAND, tw_ioctl);
1584:
1585: // Deal with the different error cases
1586: if (ioctlreturn) {
1587: if (AMCC_3WARE_678K==m_escalade_type
1588: && in.in_regs.command==ATA_SMART_CMD
1589: && ( in.in_regs.features == ATA_SMART_AUTO_OFFLINE
1590: || in.in_regs.features == ATA_SMART_AUTOSAVE )
1591: && in.in_regs.lba_low) {
1592: // error here is probably a kernel driver whose version is too old
1593: // printwarning(command); // TODO: Parameter no longer valid
1594: return set_err(ENOTSUP, "Probably kernel driver too old");
1595: }
1596: return set_err(EIO);
1597: }
1598:
1599: // The passthru structure is valid after return from an ioctl if:
1600: // - we are using the character interface OR
1601: // - we are using the SCSI interface and this is a NON-READ-DATA command
1602: // For SCSI interface, note that we set passthru to a different
1603: // value after ioctl().
1604: if (AMCC_3WARE_678K==m_escalade_type) {
1605: if (readdata)
1606: passthru=NULL;
1607: else
1608: passthru=(TW_Passthru *)&(tw_output->output_data);
1609: }
1610:
1611: // See if the ATA command failed. Now that we have returned from
1612: // the ioctl() call, if passthru is valid, then:
1613: // - passthru->status contains the 3ware controller STATUS
1614: // - passthru->command contains the ATA STATUS register
1615: // - passthru->features contains the ATA ERROR register
1616: //
1617: // Check bits 0 (error bit) and 5 (device fault) of the ATA STATUS
1618: // If bit 0 (error bit) is set, then ATA ERROR register is valid.
1619: // While we *might* decode the ATA ERROR register, at the moment it
1620: // doesn't make much sense: we don't care in detail why the error
1621: // happened.
1622:
1623: if (passthru && (passthru->status || (passthru->command & 0x21))) {
1624: return set_err(EIO);
1625: }
1626:
1627: // If this is a read data command, copy data to output buffer
1628: if (readdata) {
1629: if (m_escalade_type == AMCC_3WARE_9700_CHAR || m_escalade_type == AMCC_3WARE_9000_CHAR)
1630: memcpy(in.buffer, tw_ioctl_apache->data_buffer, in.size);
1631: else if (m_escalade_type==AMCC_3WARE_678K_CHAR)
1632: memcpy(in.buffer, tw_ioctl_char->data_buffer, in.size);
1633: else
1634: memcpy(in.buffer, tw_output->output_data, in.size);
1635: }
1636:
1637: // Return register values
1638: if (passthru) {
1639: ata_out_regs_48bit & r = out.out_regs;
1640: r.error = passthru->features;
1641: r.sector_count_16 = passthru->sector_count;
1642: r.lba_low_16 = passthru->sector_num;
1643: r.lba_mid_16 = passthru->cylinder_lo;
1644: r.lba_high_16 = passthru->cylinder_hi;
1645: r.device = passthru->drive_head;
1646: r.status = passthru->command;
1647: }
1648:
1649: // look for nonexistent devices/ports
1650: if ( in.in_regs.command == ATA_IDENTIFY_DEVICE
1651: && !nonempty(in.buffer, in.size)) {
1652: return set_err(ENODEV, "No drive on port %d", m_disknum);
1653: }
1654:
1655: return true;
1656: }
1657:
1658: /////////////////////////////////////////////////////////////////////////////
1659: /// Areca RAID support
1660:
1661: ///////////////////////////////////////////////////////////////////
1662: // SATA(ATA) device behind Areca RAID Controller
1663: class linux_areca_ata_device
1664: : public /*implements*/ areca_ata_device,
1665: public /*extends*/ linux_smart_device
1666: {
1667: public:
1668: linux_areca_ata_device(smart_interface * intf, const char * dev_name, int disknum, int encnum = 1);
1669: virtual smart_device * autodetect_open();
1670: virtual bool arcmsr_lock();
1671: virtual bool arcmsr_unlock();
1672: virtual int arcmsr_do_scsi_io(struct scsi_cmnd_io * iop);
1673: };
1674:
1675: ///////////////////////////////////////////////////////////////////
1676: // SAS(SCSI) device behind Areca RAID Controller
1677: class linux_areca_scsi_device
1678: : public /*implements*/ areca_scsi_device,
1679: public /*extends*/ linux_smart_device
1680: {
1681: public:
1682: linux_areca_scsi_device(smart_interface * intf, const char * dev_name, int disknum, int encnum = 1);
1683: virtual smart_device * autodetect_open();
1684: virtual bool arcmsr_lock();
1685: virtual bool arcmsr_unlock();
1686: virtual int arcmsr_do_scsi_io(struct scsi_cmnd_io * iop);
1687: };
1688:
1689: // Looks in /proc/scsi to suggest correct areca devices
1690: static int find_areca_in_proc()
1691: {
1692: const char* proc_format_string="host\tchan\tid\tlun\ttype\topens\tqdepth\tbusy\tonline\n";
1693:
1694: // check data formwat
1695: FILE *fp=fopen("/proc/scsi/sg/device_hdr", "r");
1696: if (!fp) {
1697: pout("Unable to open /proc/scsi/sg/device_hdr for reading\n");
1698: return 1;
1699: }
1700:
1701: // get line, compare to format
1702: char linebuf[256];
1703: linebuf[255]='\0';
1704: char *out = fgets(linebuf, 256, fp);
1705: fclose(fp);
1706: if (!out) {
1707: pout("Unable to read contents of /proc/scsi/sg/device_hdr\n");
1708: return 2;
1709: }
1710:
1711: if (strcmp(linebuf, proc_format_string)) {
1712: // wrong format!
1713: // Fix this by comparing only tokens not white space!!
1714: pout("Unexpected format %s in /proc/scsi/sg/device_hdr\n", proc_format_string);
1715: return 3;
1716: }
1717:
1718: // Format is understood, now search for correct device
1719: fp=fopen("/proc/scsi/sg/devices", "r");
1720: if (!fp) return 1;
1721: int host, chan, id, lun, type, opens, qdepth, busy, online;
1722: int dev=-1;
1723: int found=0;
1724: // search all lines of /proc/scsi/sg/devices
1725: while (9 == fscanf(fp, "%d %d %d %d %d %d %d %d %d", &host, &chan, &id, &lun, &type, &opens, &qdepth, &busy, &online)) {
1726: dev++;
1727: if (id == 16 && type == 3) {
1728: // devices with id=16 and type=3 might be Areca controllers
1729: pout("Device /dev/sg%d appears to be an Areca controller.\n", dev);
1730: found++;
1731: }
1732: }
1733: fclose(fp);
1734: return 0;
1735: }
1736:
1737: // Areca RAID Controller(SATA Disk)
1738: linux_areca_ata_device::linux_areca_ata_device(smart_interface * intf, const char * dev_name, int disknum, int encnum)
1739: : smart_device(intf, dev_name, "areca", "areca"),
1740: linux_smart_device(O_RDWR | O_EXCL | O_NONBLOCK)
1741: {
1742: set_disknum(disknum);
1743: set_encnum(encnum);
1744: set_info().info_name = strprintf("%s [areca_disk#%02d_enc#%02d]", dev_name, disknum, encnum);
1745: }
1746:
1747: smart_device * linux_areca_ata_device::autodetect_open()
1748: {
1749: int is_ata = 1;
1750:
1751: // autodetect device type
1752: is_ata = arcmsr_get_dev_type();
1753: if(is_ata < 0)
1754: {
1755: set_err(EIO);
1756: return this;
1757: }
1758:
1759: if(is_ata == 1)
1760: {
1761: // SATA device
1762: return this;
1763: }
1764:
1765: // SAS device
1766: smart_device_auto_ptr newdev(new linux_areca_scsi_device(smi(), get_dev_name(), get_disknum(), get_encnum()));
1767: close();
1768: delete this;
1769: newdev->open(); // TODO: Can possibly pass open fd
1770:
1771: return newdev.release();
1772: }
1773:
1774: int linux_areca_ata_device::arcmsr_do_scsi_io(struct scsi_cmnd_io * iop)
1775: {
1776: int ioctlreturn = 0;
1777:
1778: if(!is_open()) {
1779: if(!open()){
1780: find_areca_in_proc();
1781: }
1782: }
1783:
1784: ioctlreturn = do_normal_scsi_cmnd_io(get_fd(), iop, scsi_debugmode);
1785: if ( ioctlreturn || iop->scsi_status )
1786: {
1787: // errors found
1788: return -1;
1789: }
1790:
1791: return ioctlreturn;
1792: }
1793:
1794: bool linux_areca_ata_device::arcmsr_lock()
1795: {
1796: return true;
1797: }
1798:
1799: bool linux_areca_ata_device::arcmsr_unlock()
1800: {
1801: return true;
1802: }
1803:
1804: // Areca RAID Controller(SAS Device)
1805: linux_areca_scsi_device::linux_areca_scsi_device(smart_interface * intf, const char * dev_name, int disknum, int encnum)
1806: : smart_device(intf, dev_name, "areca", "areca"),
1807: linux_smart_device(O_RDWR | O_EXCL | O_NONBLOCK)
1808: {
1809: set_disknum(disknum);
1810: set_encnum(encnum);
1811: set_info().info_name = strprintf("%s [areca_disk#%02d_enc#%02d]", dev_name, disknum, encnum);
1812: }
1813:
1814: smart_device * linux_areca_scsi_device::autodetect_open()
1815: {
1816: return this;
1817: }
1818:
1819: int linux_areca_scsi_device::arcmsr_do_scsi_io(struct scsi_cmnd_io * iop)
1820: {
1821: int ioctlreturn = 0;
1822:
1823: if(!is_open()) {
1824: if(!open()){
1825: find_areca_in_proc();
1826: }
1827: }
1828:
1829: ioctlreturn = do_normal_scsi_cmnd_io(get_fd(), iop, scsi_debugmode);
1830: if ( ioctlreturn || iop->scsi_status )
1831: {
1832: // errors found
1833: return -1;
1834: }
1835:
1836: return ioctlreturn;
1837: }
1838:
1839: bool linux_areca_scsi_device::arcmsr_lock()
1840: {
1841: return true;
1842: }
1843:
1844: bool linux_areca_scsi_device::arcmsr_unlock()
1845: {
1846: return true;
1847: }
1848:
1849: /////////////////////////////////////////////////////////////////////////////
1850: /// Marvell support
1851:
1852: class linux_marvell_device
1853: : public /*implements*/ ata_device_with_command_set,
1854: public /*extends*/ linux_smart_device
1855: {
1856: public:
1857: linux_marvell_device(smart_interface * intf, const char * dev_name, const char * req_type);
1858:
1859: protected:
1860: virtual int ata_command_interface(smart_command_set command, int select, char * data);
1861: };
1862:
1863: linux_marvell_device::linux_marvell_device(smart_interface * intf,
1864: const char * dev_name, const char * req_type)
1865: : smart_device(intf, dev_name, "marvell", req_type),
1866: linux_smart_device(O_RDONLY | O_NONBLOCK)
1867: {
1868: }
1869:
1870: int linux_marvell_device::ata_command_interface(smart_command_set command, int select, char * data)
1871: {
1872: typedef struct {
1873: int inlen;
1874: int outlen;
1875: char cmd[540];
1876: } mvsata_scsi_cmd;
1877:
1878: int copydata = 0;
1879: mvsata_scsi_cmd smart_command;
1880: unsigned char *buff = (unsigned char *)&smart_command.cmd[6];
1881: // See struct hd_drive_cmd_hdr in hdreg.h
1882: // buff[0]: ATA COMMAND CODE REGISTER
1883: // buff[1]: ATA SECTOR NUMBER REGISTER
1884: // buff[2]: ATA FEATURES REGISTER
1885: // buff[3]: ATA SECTOR COUNT REGISTER
1886:
1887: // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes)
1888: memset(&smart_command, 0, sizeof(smart_command));
1889: smart_command.inlen = 540;
1890: smart_command.outlen = 540;
1891: smart_command.cmd[0] = 0xC; //Vendor-specific code
1892: smart_command.cmd[4] = 6; //command length
1893:
1894: buff[0] = ATA_SMART_CMD;
1895: switch (command){
1896: case CHECK_POWER_MODE:
1897: buff[0]=ATA_CHECK_POWER_MODE;
1898: break;
1899: case READ_VALUES:
1900: buff[2]=ATA_SMART_READ_VALUES;
1901: copydata=buff[3]=1;
1902: break;
1903: case READ_THRESHOLDS:
1904: buff[2]=ATA_SMART_READ_THRESHOLDS;
1905: copydata=buff[1]=buff[3]=1;
1906: break;
1907: case READ_LOG:
1908: buff[2]=ATA_SMART_READ_LOG_SECTOR;
1909: buff[1]=select;
1910: copydata=buff[3]=1;
1911: break;
1912: case IDENTIFY:
1913: buff[0]=ATA_IDENTIFY_DEVICE;
1914: copydata=buff[3]=1;
1915: break;
1916: case PIDENTIFY:
1917: buff[0]=ATA_IDENTIFY_PACKET_DEVICE;
1918: copydata=buff[3]=1;
1919: break;
1920: case ENABLE:
1921: buff[2]=ATA_SMART_ENABLE;
1922: buff[1]=1;
1923: break;
1924: case DISABLE:
1925: buff[2]=ATA_SMART_DISABLE;
1926: buff[1]=1;
1927: break;
1928: case STATUS:
1929: case STATUS_CHECK:
1930: // this command only says if SMART is working. It could be
1931: // replaced with STATUS_CHECK below.
1932: buff[2] = ATA_SMART_STATUS;
1933: break;
1934: case AUTO_OFFLINE:
1935: buff[2]=ATA_SMART_AUTO_OFFLINE;
1936: buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!!
1937: break;
1938: case AUTOSAVE:
1939: buff[2]=ATA_SMART_AUTOSAVE;
1940: buff[3]=select; // YET NOTE - THIS IS A NON-DATA COMMAND!!
1941: break;
1942: case IMMEDIATE_OFFLINE:
1943: buff[2]=ATA_SMART_IMMEDIATE_OFFLINE;
1944: buff[1]=select;
1945: break;
1946: default:
1947: pout("Unrecognized command %d in mvsata_os_specific_handler()\n", command);
1948: EXIT(1);
1949: break;
1950: }
1951: // There are two different types of ioctls(). The HDIO_DRIVE_TASK
1952: // one is this:
1953: // We are now doing the HDIO_DRIVE_CMD type ioctl.
1954: if (ioctl(get_fd(), SCSI_IOCTL_SEND_COMMAND, (void *)&smart_command))
1955: return -1;
1956:
1957: if (command==CHECK_POWER_MODE) {
1958: // LEON -- CHECK THIS PLEASE. THIS SHOULD BE THE SECTOR COUNT
1959: // REGISTER, AND IT MIGHT BE buff[2] NOT buff[3]. Bruce
1960: data[0]=buff[3];
1961: return 0;
1962: }
1963:
1964: // Always succeed on a SMART status, as a disk that failed returned
1965: // buff[4]=0xF4, buff[5]=0x2C, i.e. "Bad SMART status" (see below).
1966: if (command == STATUS)
1967: return 0;
1968: //Data returned is starting from 0 offset
1969: if (command == STATUS_CHECK)
1970: {
1971: // Cyl low and Cyl high unchanged means "Good SMART status"
1972: if (buff[4] == 0x4F && buff[5] == 0xC2)
1973: return 0;
1974: // These values mean "Bad SMART status"
1975: if (buff[4] == 0xF4 && buff[5] == 0x2C)
1976: return 1;
1977: // We haven't gotten output that makes sense; print out some debugging info
1978: syserror("Error SMART Status command failed");
1979: pout("Please get assistance from %s\n",PACKAGE_BUGREPORT);
1980: pout("Register values returned from SMART Status command are:\n");
1981: pout("CMD =0x%02x\n",(int)buff[0]);
1982: pout("FR =0x%02x\n",(int)buff[1]);
1983: pout("NS =0x%02x\n",(int)buff[2]);
1984: pout("SC =0x%02x\n",(int)buff[3]);
1985: pout("CL =0x%02x\n",(int)buff[4]);
1986: pout("CH =0x%02x\n",(int)buff[5]);
1987: pout("SEL=0x%02x\n",(int)buff[6]);
1988: return -1;
1989: }
1990:
1991: if (copydata)
1992: memcpy(data, buff, 512);
1993: return 0;
1994: }
1995:
1996: /////////////////////////////////////////////////////////////////////////////
1997: /// Highpoint RAID support
1998:
1999: class linux_highpoint_device
2000: : public /*implements*/ ata_device_with_command_set,
2001: public /*extends*/ linux_smart_device
2002: {
2003: public:
2004: linux_highpoint_device(smart_interface * intf, const char * dev_name,
2005: unsigned char controller, unsigned char channel, unsigned char port);
2006:
2007: protected:
2008: virtual int ata_command_interface(smart_command_set command, int select, char * data);
2009:
2010: private:
2011: unsigned char m_hpt_data[3]; ///< controller/channel/port
2012: };
2013:
2014: linux_highpoint_device::linux_highpoint_device(smart_interface * intf, const char * dev_name,
2015: unsigned char controller, unsigned char channel, unsigned char port)
2016: : smart_device(intf, dev_name, "hpt", "hpt"),
2017: linux_smart_device(O_RDONLY | O_NONBLOCK)
2018: {
2019: m_hpt_data[0] = controller; m_hpt_data[1] = channel; m_hpt_data[2] = port;
2020: set_info().info_name = strprintf("%s [hpt_disk_%u/%u/%u]", dev_name, m_hpt_data[0], m_hpt_data[1], m_hpt_data[2]);
2021: }
2022:
2023: // this implementation is derived from ata_command_interface with a header
2024: // packing for highpoint linux driver ioctl interface
2025: //
2026: // ioctl(fd,HPTIO_CTL,buff)
2027: // ^^^^^^^^^
2028: //
2029: // structure of hpt_buff
2030: // +----+----+----+----+--------------------.....---------------------+
2031: // | 1 | 2 | 3 | 4 | 5 |
2032: // +----+----+----+----+--------------------.....---------------------+
2033: //
2034: // 1: The target controller [ int ( 4 Bytes ) ]
2035: // 2: The channel of the target controllee [ int ( 4 Bytes ) ]
2036: // 3: HDIO_ ioctl call [ int ( 4 Bytes ) ]
2037: // available from ${LINUX_KERNEL_SOURCE}/Documentation/ioctl/hdio
2038: // 4: the pmport that disk attached, [ int ( 4 Bytes ) ]
2039: // if no pmport device, set to 1 or leave blank
2040: // 5: data [ void * ( var leangth ) ]
2041: //
2042: #define STRANGE_BUFFER_LENGTH (4+512*0xf8)
2043:
2044: int linux_highpoint_device::ata_command_interface(smart_command_set command, int select, char * data)
2045: {
2046: unsigned char hpt_buff[4*sizeof(int) + STRANGE_BUFFER_LENGTH];
2047: unsigned int *hpt = (unsigned int *)hpt_buff;
2048: unsigned char *buff = &hpt_buff[4*sizeof(int)];
2049: int copydata = 0;
2050: const int HDIO_DRIVE_CMD_OFFSET = 4;
2051:
2052: memset(hpt_buff, 0, 4*sizeof(int) + STRANGE_BUFFER_LENGTH);
2053: hpt[0] = m_hpt_data[0]; // controller id
2054: hpt[1] = m_hpt_data[1]; // channel number
2055: hpt[3] = m_hpt_data[2]; // pmport number
2056:
2057: buff[0]=ATA_SMART_CMD;
2058: switch (command){
2059: case CHECK_POWER_MODE:
2060: buff[0]=ATA_CHECK_POWER_MODE;
2061: copydata=1;
2062: break;
2063: case READ_VALUES:
2064: buff[2]=ATA_SMART_READ_VALUES;
2065: buff[3]=1;
2066: copydata=512;
2067: break;
2068: case READ_THRESHOLDS:
2069: buff[2]=ATA_SMART_READ_THRESHOLDS;
2070: buff[1]=buff[3]=1;
2071: copydata=512;
2072: break;
2073: case READ_LOG:
2074: buff[2]=ATA_SMART_READ_LOG_SECTOR;
2075: buff[1]=select;
2076: buff[3]=1;
2077: copydata=512;
2078: break;
2079: case WRITE_LOG:
2080: break;
2081: case IDENTIFY:
2082: buff[0]=ATA_IDENTIFY_DEVICE;
2083: buff[3]=1;
2084: copydata=512;
2085: break;
2086: case PIDENTIFY:
2087: buff[0]=ATA_IDENTIFY_PACKET_DEVICE;
2088: buff[3]=1;
2089: copydata=512;
2090: break;
2091: case ENABLE:
2092: buff[2]=ATA_SMART_ENABLE;
2093: buff[1]=1;
2094: break;
2095: case DISABLE:
2096: buff[2]=ATA_SMART_DISABLE;
2097: buff[1]=1;
2098: break;
2099: case STATUS:
2100: buff[2]=ATA_SMART_STATUS;
2101: break;
2102: case AUTO_OFFLINE:
2103: buff[2]=ATA_SMART_AUTO_OFFLINE;
2104: buff[3]=select;
2105: break;
2106: case AUTOSAVE:
2107: buff[2]=ATA_SMART_AUTOSAVE;
2108: buff[3]=select;
2109: break;
2110: case IMMEDIATE_OFFLINE:
2111: buff[2]=ATA_SMART_IMMEDIATE_OFFLINE;
2112: buff[1]=select;
2113: break;
2114: case STATUS_CHECK:
2115: buff[1]=ATA_SMART_STATUS;
2116: break;
2117: default:
2118: pout("Unrecognized command %d in linux_highpoint_command_interface()\n"
2119: "Please contact " PACKAGE_BUGREPORT "\n", command);
2120: errno=ENOSYS;
2121: return -1;
2122: }
2123:
2124: if (command==WRITE_LOG) {
2125: unsigned char task[4*sizeof(int)+sizeof(ide_task_request_t)+512];
2126: unsigned int *hpt_tf = (unsigned int *)task;
2127: ide_task_request_t *reqtask = (ide_task_request_t *)(&task[4*sizeof(int)]);
2128: task_struct_t *taskfile = (task_struct_t *)reqtask->io_ports;
2129: int retval;
2130:
2131: memset(task, 0, sizeof(task));
2132:
2133: hpt_tf[0] = m_hpt_data[0]; // controller id
2134: hpt_tf[1] = m_hpt_data[1]; // channel number
2135: hpt_tf[3] = m_hpt_data[2]; // pmport number
2136: hpt_tf[2] = HDIO_DRIVE_TASKFILE; // real hd ioctl
2137:
2138: taskfile->data = 0;
2139: taskfile->feature = ATA_SMART_WRITE_LOG_SECTOR;
2140: taskfile->sector_count = 1;
2141: taskfile->sector_number = select;
2142: taskfile->low_cylinder = 0x4f;
2143: taskfile->high_cylinder = 0xc2;
2144: taskfile->device_head = 0;
2145: taskfile->command = ATA_SMART_CMD;
2146:
2147: reqtask->data_phase = TASKFILE_OUT;
2148: reqtask->req_cmd = IDE_DRIVE_TASK_OUT;
2149: reqtask->out_size = 512;
2150: reqtask->in_size = 0;
2151:
2152: memcpy(task+sizeof(ide_task_request_t)+4*sizeof(int), data, 512);
2153:
2154: if ((retval=ioctl(get_fd(), HPTIO_CTL, task))) {
2155: if (retval==-EINVAL)
2156: pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n");
2157: return -1;
2158: }
2159: return 0;
2160: }
2161:
2162: if (command==STATUS_CHECK){
2163: int retval;
2164: unsigned const char normal_lo=0x4f, normal_hi=0xc2;
2165: unsigned const char failed_lo=0xf4, failed_hi=0x2c;
2166: buff[4]=normal_lo;
2167: buff[5]=normal_hi;
2168:
2169: hpt[2] = HDIO_DRIVE_TASK;
2170:
2171: if ((retval=ioctl(get_fd(), HPTIO_CTL, hpt_buff))) {
2172: if (retval==-EINVAL) {
2173: pout("Error SMART Status command via HDIO_DRIVE_TASK failed");
2174: pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n");
2175: }
2176: else
2177: syserror("Error SMART Status command failed");
2178: return -1;
2179: }
2180:
2181: if (buff[4]==normal_lo && buff[5]==normal_hi)
2182: return 0;
2183:
2184: if (buff[4]==failed_lo && buff[5]==failed_hi)
2185: return 1;
2186:
2187: syserror("Error SMART Status command failed");
2188: pout("Please get assistance from " PACKAGE_HOMEPAGE "\n");
2189: pout("Register values returned from SMART Status command are:\n");
2190: pout("CMD=0x%02x\n",(int)buff[0]);
2191: pout("FR =0x%02x\n",(int)buff[1]);
2192: pout("NS =0x%02x\n",(int)buff[2]);
2193: pout("SC =0x%02x\n",(int)buff[3]);
2194: pout("CL =0x%02x\n",(int)buff[4]);
2195: pout("CH =0x%02x\n",(int)buff[5]);
2196: pout("SEL=0x%02x\n",(int)buff[6]);
2197: return -1;
2198: }
2199:
2200: #if 1
2201: if (command==IDENTIFY || command==PIDENTIFY) {
2202: unsigned char deviceid[4*sizeof(int)+512*sizeof(char)];
2203: unsigned int *hpt_id = (unsigned int *)deviceid;
2204:
2205: hpt_id[0] = m_hpt_data[0]; // controller id
2206: hpt_id[1] = m_hpt_data[1]; // channel number
2207: hpt_id[3] = m_hpt_data[2]; // pmport number
2208:
2209: hpt_id[2] = HDIO_GET_IDENTITY;
2210: if (!ioctl(get_fd(), HPTIO_CTL, deviceid) && (deviceid[4*sizeof(int)] & 0x8000))
2211: buff[0]=(command==IDENTIFY)?ATA_IDENTIFY_PACKET_DEVICE:ATA_IDENTIFY_DEVICE;
2212: }
2213: #endif
2214:
2215: hpt[2] = HDIO_DRIVE_CMD;
2216: if ((ioctl(get_fd(), HPTIO_CTL, hpt_buff)))
2217: return -1;
2218:
2219: if (command==CHECK_POWER_MODE)
2220: buff[HDIO_DRIVE_CMD_OFFSET]=buff[2];
2221:
2222: if (copydata)
2223: memcpy(data, buff+HDIO_DRIVE_CMD_OFFSET, copydata);
2224:
2225: return 0;
2226: }
2227:
2228: #if 0 // TODO: Migrate from 'smart_command_set' to 'ata_in_regs' OR remove the function
2229: // Utility function for printing warnings
2230: void printwarning(smart_command_set command){
2231: static int printed[4]={0,0,0,0};
2232: const char* message=
2233: "can not be passed through the 3ware 3w-xxxx driver. This can be fixed by\n"
2234: "applying a simple 3w-xxxx driver patch that can be found here:\n"
2235: PACKAGE_HOMEPAGE "\n"
2236: "Alternatively, upgrade your 3w-xxxx driver to version 1.02.00.037 or greater.\n\n";
2237:
2238: if (command==AUTO_OFFLINE && !printed[0]) {
2239: printed[0]=1;
2240: pout("The SMART AUTO-OFFLINE ENABLE command (smartmontools -o on option/Directive)\n%s", message);
2241: }
2242: else if (command==AUTOSAVE && !printed[1]) {
2243: printed[1]=1;
2244: pout("The SMART AUTOSAVE ENABLE command (smartmontools -S on option/Directive)\n%s", message);
2245: }
2246: else if (command==STATUS_CHECK && !printed[2]) {
2247: printed[2]=1;
2248: pout("The SMART RETURN STATUS return value (smartmontools -H option/Directive)\n%s", message);
2249: }
2250: else if (command==WRITE_LOG && !printed[3]) {
2251: printed[3]=1;
2252: pout("The SMART WRITE LOG command (smartmontools -t selective) only supported via char /dev/tw[ae] interface\n");
2253: }
2254:
2255: return;
2256: }
2257: #endif
2258:
2259: /////////////////////////////////////////////////////////////////////////////
2260: /// SCSI open with autodetection support
2261:
2262: smart_device * linux_scsi_device::autodetect_open()
2263: {
2264: // Open device
2265: if (!open())
2266: return this;
2267:
2268: // No Autodetection if device type was specified by user
2269: bool sat_only = false;
2270: if (*get_req_type()) {
2271: // Detect SAT if device object was created by scan_smart_devices().
2272: if (!(m_scanning && !strcmp(get_req_type(), "sat")))
2273: return this;
2274: sat_only = true;
2275: }
2276:
2277: // The code below is based on smartd.cpp:SCSIFilterKnown()
2278:
2279: // Get INQUIRY
2280: unsigned char req_buff[64] = {0, };
2281: int req_len = 36;
2282: if (scsiStdInquiry(this, req_buff, req_len)) {
2283: // Marvell controllers fail on a 36 bytes StdInquiry, but 64 suffices
2284: // watch this spot ... other devices could lock up here
2285: req_len = 64;
2286: if (scsiStdInquiry(this, req_buff, req_len)) {
2287: // device doesn't like INQUIRY commands
2288: close();
2289: set_err(EIO, "INQUIRY failed");
2290: return this;
2291: }
2292: }
2293:
2294: int avail_len = req_buff[4] + 5;
2295: int len = (avail_len < req_len ? avail_len : req_len);
2296: if (len < 36) {
2297: if (sat_only) {
2298: close();
2299: set_err(EIO, "INQUIRY too short for SAT");
2300: }
2301: return this;
2302: }
2303:
2304: // Use INQUIRY to detect type
2305: if (!sat_only) {
2306:
2307: // 3ware ?
2308: if (!memcmp(req_buff + 8, "3ware", 5) || !memcmp(req_buff + 8, "AMCC", 4)) {
2309: close();
2310: set_err(EINVAL, "AMCC/3ware controller, please try adding '-d 3ware,N',\n"
2311: "you may need to replace %s with /dev/twlN, /dev/twaN or /dev/tweN", get_dev_name());
2312: return this;
2313: }
2314:
2315: // DELL?
2316: if (!memcmp(req_buff + 8, "DELL PERC", 12) || !memcmp(req_buff + 8, "MegaRAID", 8)
2317: || !memcmp(req_buff + 16, "PERC H700", 9) || !memcmp(req_buff + 8, "LSI\0",4)
2318: ) {
2319: close();
2320: set_err(EINVAL, "DELL or MegaRaid controller, please try adding '-d megaraid,N'");
2321: return this;
2322: }
2323:
2324: // Marvell ?
2325: if (len >= 42 && !memcmp(req_buff + 36, "MVSATA", 6)) {
2326: //pout("Device %s: using '-d marvell' for ATA disk with Marvell driver\n", get_dev_name());
2327: close();
2328: smart_device_auto_ptr newdev(
2329: new linux_marvell_device(smi(), get_dev_name(), get_req_type())
2330: );
2331: newdev->open(); // TODO: Can possibly pass open fd
2332: delete this;
2333: return newdev.release();
2334: }
2335: }
2336:
2337: // SAT or USB ?
2338: {
2339: smart_device * newdev = smi()->autodetect_sat_device(this, req_buff, len);
2340: if (newdev)
2341: // NOTE: 'this' is now owned by '*newdev'
2342: return newdev;
2343: }
2344:
2345: // Nothing special found
2346:
2347: if (sat_only) {
2348: close();
2349: set_err(EIO, "Not a SAT device");
2350: }
2351: return this;
2352: }
2353:
2354: //////////////////////////////////////////////////////////////////////
2355: // USB bridge ID detection
2356:
2357: // Read USB ID from /sys file
2358: static bool read_id(const std::string & path, unsigned short & id)
2359: {
2360: FILE * f = fopen(path.c_str(), "r");
2361: if (!f)
2362: return false;
2363: int n = -1;
2364: bool ok = (fscanf(f, "%hx%n", &id, &n) == 1 && n == 4);
2365: fclose(f);
2366: return ok;
2367: }
2368:
2369: // Get USB bridge ID for "sdX"
2370: static bool get_usb_id(const char * name, unsigned short & vendor_id,
2371: unsigned short & product_id, unsigned short & version)
2372: {
2373: // Only "sdX" supported
2374: if (!(!strncmp(name, "sd", 2) && !strchr(name, '/')))
2375: return false;
2376:
2377: // Start search at dir referenced by symlink "/sys/block/sdX/device"
2378: // -> "/sys/devices/.../usb*/.../host*/target*/..."
2379: std::string dir = strprintf("/sys/block/%s/device", name);
2380:
2381: // Stop search at "/sys/devices"
2382: struct stat st;
2383: if (stat("/sys/devices", &st))
2384: return false;
2385: ino_t stop_ino = st.st_ino;
2386:
2387: // Search in parent directories until "idVendor" is found,
2388: // fail if "/sys/devices" reached or too many iterations
2389: int cnt = 0;
2390: do {
2391: dir += "/..";
2392: if (!(++cnt < 10 && !stat(dir.c_str(), &st) && st.st_ino != stop_ino))
2393: return false;
2394: } while (access((dir + "/idVendor").c_str(), 0));
2395:
2396: // Read IDs
2397: if (!( read_id(dir + "/idVendor", vendor_id)
2398: && read_id(dir + "/idProduct", product_id)
2399: && read_id(dir + "/bcdDevice", version) ))
2400: return false;
2401:
2402: if (scsi_debugmode > 1)
2403: pout("USB ID = 0x%04x:0x%04x (0x%03x)\n", vendor_id, product_id, version);
2404: return true;
2405: }
2406:
2407: //////////////////////////////////////////////////////////////////////
2408: /// Linux interface
2409:
2410: class linux_smart_interface
2411: : public /*implements*/ smart_interface
2412: {
2413: public:
2414: virtual std::string get_os_version_str();
2415:
2416: virtual std::string get_app_examples(const char * appname);
2417:
2418: virtual bool scan_smart_devices(smart_device_list & devlist, const char * type,
2419: const char * pattern = 0);
2420:
2421: protected:
2422: virtual ata_device * get_ata_device(const char * name, const char * type);
2423:
2424: virtual scsi_device * get_scsi_device(const char * name, const char * type);
2425:
2426: virtual smart_device * autodetect_smart_device(const char * name);
2427:
2428: virtual smart_device * get_custom_smart_device(const char * name, const char * type);
2429:
2430: virtual std::string get_valid_custom_dev_types_str();
2431:
2432: private:
2433: bool get_dev_list(smart_device_list & devlist, const char * pattern,
2434: bool scan_ata, bool scan_scsi, const char * req_type, bool autodetect);
2435: bool get_dev_megasas(smart_device_list & devlist);
2436: smart_device * missing_option(const char * opt);
2437: int megasas_dcmd_cmd(int bus_no, uint32_t opcode, void *buf,
2438: size_t bufsize, uint8_t *mbox, size_t mboxlen, uint8_t *statusp);
2439: int megasas_pd_add_list(int bus_no, smart_device_list & devlist);
2440: };
2441:
2442: std::string linux_smart_interface::get_os_version_str()
2443: {
2444: struct utsname u;
2445: if (!uname(&u))
2446: return strprintf("%s-linux-%s", u.machine, u.release);
2447: else
2448: return SMARTMONTOOLS_BUILD_HOST;
2449: }
2450:
2451: std::string linux_smart_interface::get_app_examples(const char * appname)
2452: {
2453: if (!strcmp(appname, "smartctl"))
2454: return smartctl_examples;
2455: return "";
2456: }
2457:
2458: // we are going to take advantage of the fact that Linux's devfs will only
2459: // have device entries for devices that exist. So if we get the equivalent of
2460: // ls /dev/hd[a-t], we have all the ATA devices on the system
2461: bool linux_smart_interface::get_dev_list(smart_device_list & devlist,
2462: const char * pattern, bool scan_ata, bool scan_scsi,
2463: const char * req_type, bool autodetect)
2464: {
2465: // Use glob to look for any directory entries matching the pattern
2466: glob_t globbuf;
2467: memset(&globbuf, 0, sizeof(globbuf));
2468: int retglob = glob(pattern, GLOB_ERR, NULL, &globbuf);
2469: if (retglob) {
2470: // glob failed: free memory and return
2471: globfree(&globbuf);
2472:
2473: if (retglob==GLOB_NOMATCH){
2474: pout("glob(3) found no matches for pattern %s\n", pattern);
2475: return true;
2476: }
2477:
2478: if (retglob==GLOB_NOSPACE)
2479: set_err(ENOMEM, "glob(3) ran out of memory matching pattern %s", pattern);
2480: #ifdef GLOB_ABORTED // missing in old versions of glob.h
2481: else if (retglob==GLOB_ABORTED)
2482: set_err(EINVAL, "glob(3) aborted matching pattern %s", pattern);
2483: #endif
2484: else
2485: set_err(EINVAL, "Unexplained error in glob(3) of pattern %s", pattern);
2486:
2487: return false;
2488: }
2489:
2490: // did we find too many paths?
2491: const int max_pathc = 32;
2492: int n = (int)globbuf.gl_pathc;
2493: if (n > max_pathc) {
2494: pout("glob(3) found %d > MAX=%d devices matching pattern %s: ignoring %d paths\n",
2495: n, max_pathc, pattern, n - max_pathc);
2496: n = max_pathc;
2497: }
2498:
2499: // now step through the list returned by glob. If not a link, copy
2500: // to list. If it is a link, evaluate it and see if the path ends
2501: // in "disc".
2502: for (int i = 0; i < n; i++){
2503: // see if path is a link
2504: char linkbuf[1024];
2505: int retlink = readlink(globbuf.gl_pathv[i], linkbuf, sizeof(linkbuf)-1);
2506:
2507: char tmpname[1024]={0};
2508: const char * name = 0;
2509: bool is_scsi = scan_scsi;
2510: // if not a link (or a strange link), keep it
2511: if (retlink<=0 || retlink>1023)
2512: name = globbuf.gl_pathv[i];
2513: else {
2514: // or if it's a link that points to a disc, follow it
2515: linkbuf[retlink] = 0;
2516: const char *p;
2517: if ((p=strrchr(linkbuf, '/')) && !strcmp(p+1, "disc"))
2518: // This is the branch of the code that gets followed if we are
2519: // using devfs WITH traditional compatibility links. In this
2520: // case, we add the traditional device name to the list that
2521: // is returned.
2522: name = globbuf.gl_pathv[i];
2523: else {
2524: // This is the branch of the code that gets followed if we are
2525: // using devfs WITHOUT traditional compatibility links. In
2526: // this case, we check that the link to the directory is of
2527: // the correct type, and then append "disc" to it.
2528: bool match_ata = strstr(linkbuf, "ide");
2529: bool match_scsi = strstr(linkbuf, "scsi");
2530: if (((match_ata && scan_ata) || (match_scsi && scan_scsi)) && !(match_ata && match_scsi)) {
2531: is_scsi = match_scsi;
2532: snprintf(tmpname, sizeof(tmpname), "%s/disc", globbuf.gl_pathv[i]);
2533: name = tmpname;
2534: }
2535: }
2536: }
2537:
2538: if (name) {
2539: // Found a name, add device to list.
2540: smart_device * dev;
2541: if (autodetect)
2542: dev = autodetect_smart_device(name);
2543: else if (is_scsi)
2544: dev = new linux_scsi_device(this, name, req_type, true /*scanning*/);
2545: else
2546: dev = new linux_ata_device(this, name, req_type);
2547: if (dev) // autodetect_smart_device() may return nullptr.
2548: devlist.push_back(dev);
2549: }
2550: }
2551:
2552: // free memory
2553: globfree(&globbuf);
2554: return true;
2555: }
2556:
2557: // getting devices from LSI SAS MegaRaid, if available
2558: bool linux_smart_interface::get_dev_megasas(smart_device_list & devlist)
2559: {
2560: /* Scanning of disks on MegaRaid device */
2561: /* Perform mknod of device ioctl node */
2562: int mjr, n1;
2563: char line[128];
2564: bool scan_megasas = false;
2565: FILE * fp = fopen("/proc/devices", "r");
2566: while (fgets(line, sizeof(line), fp) != NULL) {
2567: n1=0;
2568: if (sscanf(line, "%d megaraid_sas_ioctl%n", &mjr, &n1) == 1 && n1 == 22) {
2569: scan_megasas = true;
2570: n1=mknod("/dev/megaraid_sas_ioctl_node", S_IFCHR, makedev(mjr, 0));
2571: if(scsi_debugmode > 0)
2572: pout("Creating /dev/megaraid_sas_ioctl_node = %d\n", n1 >= 0 ? 0 : errno);
2573: if (n1 >= 0 || errno == EEXIST)
2574: break;
2575: }
2576: }
2577: fclose(fp);
2578:
2579: if(!scan_megasas)
2580: return false;
2581:
2582: // getting bus numbers with megasas devices
2583: struct dirent *ep;
2584: unsigned int host_no = 0;
2585: char sysfsdir[256];
2586:
2587: /* we are using sysfs to get list of all scsi hosts */
2588: DIR * dp = opendir ("/sys/class/scsi_host/");
2589: if (dp != NULL)
2590: {
2591: while ((ep = readdir (dp)) != NULL) {
2592: if (!sscanf(ep->d_name, "host%d", &host_no))
2593: continue;
2594: /* proc_name should be megaraid_sas */
2595: snprintf(sysfsdir, sizeof(sysfsdir) - 1,
2596: "/sys/class/scsi_host/host%d/proc_name", host_no);
2597: if((fp = fopen(sysfsdir, "r")) == NULL)
2598: continue;
2599: if(fgets(line, sizeof(line), fp) != NULL && !strncmp(line,"megaraid_sas",12)) {
2600: megasas_pd_add_list(host_no, devlist);
2601: }
2602: fclose(fp);
2603: }
2604: (void) closedir (dp);
2605: } else { /* sysfs not mounted ? */
2606: for(unsigned i = 0; i <=16; i++) // trying to add devices on first 16 buses
2607: megasas_pd_add_list(i, devlist);
2608: }
2609: return true;
2610: }
2611:
2612: bool linux_smart_interface::scan_smart_devices(smart_device_list & devlist,
2613: const char * type, const char * pattern /*= 0*/)
2614: {
2615: if (pattern) {
2616: set_err(EINVAL, "DEVICESCAN with pattern not implemented yet");
2617: return false;
2618: }
2619:
2620: if (!type)
2621: type = "";
2622:
2623: bool scan_ata = (!*type || !strcmp(type, "ata" ));
2624: // "sat" detection will be later handled in linux_scsi_device::autodetect_open()
2625: bool scan_scsi = (!*type || !strcmp(type, "scsi") || !strcmp(type, "sat"));
2626: if (!(scan_ata || scan_scsi))
2627: return true;
2628:
2629: if (scan_ata)
2630: get_dev_list(devlist, "/dev/hd[a-t]", true, false, type, false);
2631: if (scan_scsi) {
2632: bool autodetect = !*type; // Try USB autodetection if no type specifed
2633: get_dev_list(devlist, "/dev/sd[a-z]", false, true, type, autodetect);
2634: // Support up to 104 devices
2635: get_dev_list(devlist, "/dev/sd[a-c][a-z]", false, true, type, autodetect);
2636: // get device list from the megaraid device
2637: get_dev_megasas(devlist);
2638: }
2639:
2640: // if we found traditional links, we are done
2641: if (devlist.size() > 0)
2642: return true;
2643:
2644: // else look for devfs entries without traditional links
2645: // TODO: Add udev support
2646: return get_dev_list(devlist, "/dev/discs/disc*", scan_ata, scan_scsi, type, false);
2647: }
2648:
2649: ata_device * linux_smart_interface::get_ata_device(const char * name, const char * type)
2650: {
2651: return new linux_ata_device(this, name, type);
2652: }
2653:
2654: scsi_device * linux_smart_interface::get_scsi_device(const char * name, const char * type)
2655: {
2656: return new linux_scsi_device(this, name, type);
2657: }
2658:
2659: smart_device * linux_smart_interface::missing_option(const char * opt)
2660: {
2661: set_err(EINVAL, "requires option '%s'", opt);
2662: return 0;
2663: }
2664:
2665: int
2666: linux_smart_interface::megasas_dcmd_cmd(int bus_no, uint32_t opcode, void *buf,
2667: size_t bufsize, uint8_t *mbox, size_t mboxlen, uint8_t *statusp)
2668: {
2669: struct megasas_iocpacket ioc;
2670:
2671: if ((mbox != NULL && (mboxlen == 0 || mboxlen > MFI_MBOX_SIZE)) ||
2672: (mbox == NULL && mboxlen != 0))
2673: {
2674: errno = EINVAL;
2675: return (-1);
2676: }
2677:
2678: bzero(&ioc, sizeof(ioc));
2679: struct megasas_dcmd_frame * dcmd = &ioc.frame.dcmd;
2680: ioc.host_no = bus_no;
2681: if (mbox)
2682: bcopy(mbox, dcmd->mbox.w, mboxlen);
2683: dcmd->cmd = MFI_CMD_DCMD;
2684: dcmd->timeout = 0;
2685: dcmd->flags = 0;
2686: dcmd->data_xfer_len = bufsize;
2687: dcmd->opcode = opcode;
2688:
2689: if (bufsize > 0) {
2690: dcmd->sge_count = 1;
2691: dcmd->data_xfer_len = bufsize;
2692: dcmd->sgl.sge32[0].phys_addr = (intptr_t)buf;
2693: dcmd->sgl.sge32[0].length = (uint32_t)bufsize;
2694: ioc.sge_count = 1;
2695: ioc.sgl_off = offsetof(struct megasas_dcmd_frame, sgl);
2696: ioc.sgl[0].iov_base = buf;
2697: ioc.sgl[0].iov_len = bufsize;
2698: }
2699:
2700: int fd;
2701: if ((fd = ::open("/dev/megaraid_sas_ioctl_node", O_RDWR)) <= 0) {
2702: return (errno);
2703: }
2704:
2705: int r = ioctl(fd, MEGASAS_IOC_FIRMWARE, &ioc);
2706: if (r < 0) {
2707: return (r);
2708: }
2709:
2710: if (statusp != NULL)
2711: *statusp = dcmd->cmd_status;
2712: else if (dcmd->cmd_status != MFI_STAT_OK) {
2713: fprintf(stderr, "command %x returned error status %x\n",
2714: opcode, dcmd->cmd_status);
2715: errno = EIO;
2716: return (-1);
2717: }
2718: return (0);
2719: }
2720:
2721: int
2722: linux_smart_interface::megasas_pd_add_list(int bus_no, smart_device_list & devlist)
2723: {
2724: /*
2725: * Keep fetching the list in a loop until we have a large enough
2726: * buffer to hold the entire list.
2727: */
2728: megasas_pd_list * list = 0;
2729: for (unsigned list_size = 1024; ; ) {
2730: list = (megasas_pd_list *)realloc(list, list_size);
2731: if (!list)
2732: throw std::bad_alloc();
2733: bzero(list, list_size);
2734: if (megasas_dcmd_cmd(bus_no, MFI_DCMD_PD_GET_LIST, list, list_size, NULL, 0,
2735: NULL) < 0)
2736: {
2737: free(list);
2738: return (-1);
2739: }
2740: if (list->size <= list_size)
2741: break;
2742: list_size = list->size;
2743: }
2744:
2745: // adding all SCSI devices
2746: for (unsigned i = 0; i < list->count; i++) {
2747: if(list->addr[i].scsi_dev_type)
2748: continue; /* non disk device found */
2749: char line[128];
2750: snprintf(line, sizeof(line) - 1, "/dev/bus/%d", bus_no);
2751: smart_device * dev = new linux_megaraid_device(this, line, 0, list->addr[i].device_id);
2752: devlist.push_back(dev);
2753: }
2754: free(list);
2755: return (0);
2756: }
2757:
2758: // Return kernel release as integer ("2.6.31" -> 206031)
2759: static unsigned get_kernel_release()
2760: {
2761: struct utsname u;
2762: if (uname(&u))
2763: return 0;
2764: unsigned x = 0, y = 0, z = 0;
2765: if (!(sscanf(u.release, "%u.%u.%u", &x, &y, &z) == 3
2766: && x < 100 && y < 100 && z < 1000 ))
2767: return 0;
2768: return x * 100000 + y * 1000 + z;
2769: }
2770:
2771: // Guess device type (ata or scsi) based on device name (Linux
2772: // specific) SCSI device name in linux can be sd, sr, scd, st, nst,
2773: // osst, nosst and sg.
2774: smart_device * linux_smart_interface::autodetect_smart_device(const char * name)
2775: {
2776: const char * test_name = name;
2777:
2778: // Dereference symlinks
2779: struct stat st;
2780: std::string pathbuf;
2781: if (!lstat(name, &st) && S_ISLNK(st.st_mode)) {
2782: char * p = realpath(name, (char *)0);
2783: if (p) {
2784: pathbuf = p;
2785: free(p);
2786: test_name = pathbuf.c_str();
2787: }
2788: }
2789:
2790: // Remove the leading /dev/... if it's there
2791: static const char dev_prefix[] = "/dev/";
2792: if (str_starts_with(test_name, dev_prefix))
2793: test_name += strlen(dev_prefix);
2794:
2795: // form /dev/h* or h*
2796: if (str_starts_with(test_name, "h"))
2797: return new linux_ata_device(this, name, "");
2798:
2799: // form /dev/ide/* or ide/*
2800: if (str_starts_with(test_name, "ide/"))
2801: return new linux_ata_device(this, name, "");
2802:
2803: // form /dev/s* or s*
2804: if (str_starts_with(test_name, "s")) {
2805:
2806: // Try to detect possible USB->(S)ATA bridge
2807: unsigned short vendor_id = 0, product_id = 0, version = 0;
2808: if (get_usb_id(test_name, vendor_id, product_id, version)) {
2809: const char * usbtype = get_usb_dev_type_by_id(vendor_id, product_id, version);
2810: if (!usbtype)
2811: return 0;
2812:
2813: // Kernels before 2.6.29 do not support the sense data length
2814: // required for SAT ATA PASS-THROUGH(16)
2815: if (!strcmp(usbtype, "sat") && get_kernel_release() < 206029)
2816: usbtype = "sat,12";
2817:
2818: // Return SAT/USB device for this type
2819: // (Note: linux_scsi_device::autodetect_open() will not be called in this case)
2820: return get_sat_device(usbtype, new linux_scsi_device(this, name, ""));
2821: }
2822:
2823: // No USB bridge found, assume regular SCSI device
2824: return new linux_scsi_device(this, name, "");
2825: }
2826:
2827: // form /dev/scsi/* or scsi/*
2828: if (str_starts_with(test_name, "scsi/"))
2829: return new linux_scsi_device(this, name, "");
2830:
2831: // form /dev/ns* or ns*
2832: if (str_starts_with(test_name, "ns"))
2833: return new linux_scsi_device(this, name, "");
2834:
2835: // form /dev/os* or os*
2836: if (str_starts_with(test_name, "os"))
2837: return new linux_scsi_device(this, name, "");
2838:
2839: // form /dev/nos* or nos*
2840: if (str_starts_with(test_name, "nos"))
2841: return new linux_scsi_device(this, name, "");
2842:
2843: // form /dev/tw[ael]* or tw[ael]*
2844: if (str_starts_with(test_name, "tw") && strchr("ael", test_name[2]))
2845: return missing_option("-d 3ware,N");
2846:
2847: // form /dev/cciss/* or cciss/*
2848: if (str_starts_with(test_name, "cciss/"))
2849: return missing_option("-d cciss,N");
2850:
2851: // we failed to recognize any of the forms
2852: return 0;
2853: }
2854:
2855: smart_device * linux_smart_interface::get_custom_smart_device(const char * name, const char * type)
2856: {
2857: // Marvell ?
2858: if (!strcmp(type, "marvell"))
2859: return new linux_marvell_device(this, name, type);
2860:
2861: // 3Ware ?
2862: int disknum = -1, n1 = -1, n2 = -1;
2863: if (sscanf(type, "3ware,%n%d%n", &n1, &disknum, &n2) == 1 || n1 == 6) {
2864: if (n2 != (int)strlen(type)) {
2865: set_err(EINVAL, "Option -d 3ware,N requires N to be a non-negative integer");
2866: return 0;
2867: }
2868: if (!(0 <= disknum && disknum <= 127)) {
2869: set_err(EINVAL, "Option -d 3ware,N (N=%d) must have 0 <= N <= 127", disknum);
2870: return 0;
2871: }
2872:
2873: if (!strncmp(name, "/dev/twl", 8))
2874: return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_9700_CHAR, disknum);
2875: else if (!strncmp(name, "/dev/twa", 8))
2876: return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_9000_CHAR, disknum);
2877: else if (!strncmp(name, "/dev/twe", 8))
2878: return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_678K_CHAR, disknum);
2879: else
2880: return new linux_escalade_device(this, name, linux_escalade_device::AMCC_3WARE_678K, disknum);
2881: }
2882:
2883: // Areca?
2884: disknum = n1 = n2 = -1;
2885: int encnum = 1;
2886: if (sscanf(type, "areca,%n%d/%d%n", &n1, &disknum, &encnum, &n2) >= 1 || n1 == 6) {
2887: if (!(1 <= disknum && disknum <= 128)) {
2888: set_err(EINVAL, "Option -d areca,N/E (N=%d) must have 1 <= N <= 128", disknum);
2889: return 0;
2890: }
2891: if (!(1 <= encnum && encnum <= 8)) {
2892: set_err(EINVAL, "Option -d areca,N/E (E=%d) must have 1 <= E <= 8", encnum);
2893: return 0;
2894: }
2895: return new linux_areca_ata_device(this, name, disknum, encnum);
2896: }
2897:
2898: // Highpoint ?
2899: int controller = -1, channel = -1; disknum = 1;
2900: n1 = n2 = -1; int n3 = -1;
2901: if (sscanf(type, "hpt,%n%d/%d%n/%d%n", &n1, &controller, &channel, &n2, &disknum, &n3) >= 2 || n1 == 4) {
2902: int len = strlen(type);
2903: if (!(n2 == len || n3 == len)) {
2904: set_err(EINVAL, "Option '-d hpt,L/M/N' supports 2-3 items");
2905: return 0;
2906: }
2907: if (!(1 <= controller && controller <= 8)) {
2908: set_err(EINVAL, "Option '-d hpt,L/M/N' invalid controller id L supplied");
2909: return 0;
2910: }
2911: if (!(1 <= channel && channel <= 128)) {
2912: set_err(EINVAL, "Option '-d hpt,L/M/N' invalid channel number M supplied");
2913: return 0;
2914: }
2915: if (!(1 <= disknum && disknum <= 15)) {
2916: set_err(EINVAL, "Option '-d hpt,L/M/N' invalid pmport number N supplied");
2917: return 0;
2918: }
2919: return new linux_highpoint_device(this, name, controller, channel, disknum);
2920: }
2921:
2922: #ifdef HAVE_LINUX_CCISS_IOCTL_H
2923: // CCISS ?
2924: disknum = n1 = n2 = -1;
2925: if (sscanf(type, "cciss,%n%d%n", &n1, &disknum, &n2) == 1 || n1 == 6) {
2926: if (n2 != (int)strlen(type)) {
2927: set_err(EINVAL, "Option -d cciss,N requires N to be a non-negative integer");
2928: return 0;
2929: }
2930: if (!(0 <= disknum && disknum <= 127)) {
2931: set_err(EINVAL, "Option -d cciss,N (N=%d) must have 0 <= N <= 127", disknum);
2932: return 0;
2933: }
2934: return get_sat_device("sat,auto", new linux_cciss_device(this, name, disknum));
2935: }
2936: #endif // HAVE_LINUX_CCISS_IOCTL_H
2937:
2938: // MegaRAID ?
2939: if (sscanf(type, "megaraid,%d", &disknum) == 1) {
2940: return new linux_megaraid_device(this, name, 0, disknum);
2941: }
2942: return 0;
2943: }
2944:
2945: std::string linux_smart_interface::get_valid_custom_dev_types_str()
2946: {
2947: return "marvell, areca,N/E, 3ware,N, hpt,L/M/N, megaraid,N"
2948: #ifdef HAVE_LINUX_CCISS_IOCTL_H
2949: ", cciss,N"
2950: #endif
2951: ;
2952: }
2953:
2954: } // namespace
2955:
2956: /////////////////////////////////////////////////////////////////////////////
2957: /// Initialize platform interface and register with smi()
2958:
2959: void smart_interface::init()
2960: {
2961: static os_linux::linux_smart_interface the_interface;
2962: smart_interface::set(&the_interface);
2963: }
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