4 * Home page of code is: http://smartmontools.sourceforge.net
6 * Copyright (C) 2003-8 Bruce Allen <smartmontools-support@lists.sourceforge.net>
7 * Copyright (C) 2003-8 Doug Gilbert <dougg@torque.net>
8 * Copyright (C) 2008 Hank Wu <hank@areca.com.tw>
9 * Copyright (C) 2008 Oliver Bock <brevilo@users.sourceforge.net>
10 * Copyright (C) 2008-9 Christian Franke <smartmontools-support@lists.sourceforge.net>
11 * Copyright (C) 2008 Jordan Hargrave <jordan_hargrave@dell.com>
13 * Parts of this file are derived from code that was
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>
20 * Copyright (C) 1999-2003 3ware Inc.
22 * Kernel compatablity By: Andre Hedrick <andre@suse.com>
23 * Non-Copyright (C) 2000 Andre Hedrick <andre@suse.com>
25 * Other ars of this file are derived from code that was
27 * Copyright (C) 1999-2000 Michael Cornwell <cornwell@acm.org>
28 * Copyright (C) 2000 Andre Hedrick <andre@linux-ide.org>
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)
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/>.
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/
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
56 #include <scsi/scsi.h>
57 #include <scsi/scsi_ioctl.h>
61 #include <sys/ioctl.h>
66 #include <sys/types.h>
67 #ifndef makedev // old versions of types.h do not include sysmacros.h
68 #include <sys/sysmacros.h>
71 #include <selinux/selinux.h>
84 #include "dev_interface.h"
85 #include "dev_ata_cmd_set.h"
88 #define ENOTSUP ENOSYS
91 #define ARGUSED(x) ((void)(x))
93 const char *os_XXXX_c_cvsid
="$Id: os_linux.cpp 2993 2009-12-04 17:29:50Z chrfranke $" \
94 ATACMDS_H_CVSID CONFIG_H_CVSID INT64_H_CVSID OS_LINUX_H_CVSID SCSICMDS_H_CVSID UTILITY_H_CVSID
;
96 /* for passing global control variables */
97 // (con->reportscsiioctl only)
98 extern smartmonctrl
*con
;
101 namespace os_linux
{ // No need to publish anything, name provided for Doxygen
103 /////////////////////////////////////////////////////////////////////////////
104 /// Shared open/close routines
106 class linux_smart_device
107 : virtual public /*implements*/ smart_device
110 explicit linux_smart_device(int flags
, int retry_flags
= -1)
111 : smart_device(never_called
),
113 m_flags(flags
), m_retry_flags(retry_flags
)
116 virtual ~linux_smart_device() throw();
118 virtual bool is_open() const;
122 virtual bool close();
125 /// Return filedesc for derived classes.
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
136 linux_smart_device::~linux_smart_device() throw()
142 bool linux_smart_device::is_open() const
147 bool linux_smart_device::open()
149 m_fd
= ::open(get_dev_name(), m_flags
);
151 if (m_fd
< 0 && errno
== EROFS
&& m_retry_flags
!= -1)
153 m_fd
= ::open(get_dev_name(), m_retry_flags
);
156 if (errno
== EBUSY
&& (m_flags
& O_EXCL
))
158 return set_err(EBUSY
,
159 "The requested controller is used exclusively by another process!\n"
160 "(e.g. smartctl or smartd)\n"
161 "Please quit the impeding process or try again later...");
162 return set_err((errno
==ENOENT
|| errno
==ENOTDIR
) ? ENODEV
: errno
);
166 // sets FD_CLOEXEC on the opened device file descriptor. The
167 // descriptor is otherwise leaked to other applications (mail
168 // sender) which may be considered a security risk and may result
169 // in AVC messages on SELinux-enabled systems.
170 if (-1 == fcntl(m_fd
, F_SETFD
, FD_CLOEXEC
))
171 // TODO: Provide an error printing routine in class smart_interface
172 pout("fcntl(set FD_CLOEXEC) failed, errno=%d [%s]\n", errno
, strerror(errno
));
178 // equivalent to close(file descriptor)
179 bool linux_smart_device::close()
181 int fd
= m_fd
; m_fd
= -1;
183 return set_err(errno
);
187 // examples for smartctl
188 static const char smartctl_examples
[] =
189 "=================================================== SMARTCTL EXAMPLES =====\n\n"
190 " smartctl --all /dev/hda (Prints all SMART information)\n\n"
191 " smartctl --smart=on --offlineauto=on --saveauto=on /dev/hda\n"
192 " (Enables SMART on first disk)\n\n"
193 " smartctl --test=long /dev/hda (Executes extended disk self-test)\n\n"
194 " smartctl --attributes --log=selftest --quietmode=errorsonly /dev/hda\n"
195 " (Prints Self-Test & Attribute errors)\n"
196 " smartctl --all --device=3ware,2 /dev/sda\n"
197 " smartctl --all --device=3ware,2 /dev/twe0\n"
198 " smartctl --all --device=3ware,2 /dev/twa0\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 /dev/sg2\n"
204 " (Prints all SMART info for 3rd ATA disk on Areca RAID controller)\n"
208 /////////////////////////////////////////////////////////////////////////////
209 /// Linux ATA support
211 class linux_ata_device
212 : public /*implements*/ ata_device_with_command_set
,
213 public /*extends*/ linux_smart_device
216 linux_ata_device(smart_interface
* intf
, const char * dev_name
, const char * req_type
);
219 virtual int ata_command_interface(smart_command_set command
, int select
, char * data
);
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
)
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
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
238 // data: location to write output data, if needed (512 bytes).
239 // Note: not all commands use all arguments.
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"
249 #define BUFFER_LENGTH (4+512)
251 int linux_ata_device::ata_command_interface(smart_command_set command
, int select
, char * data
)
253 unsigned char buff
[BUFFER_LENGTH
];
254 // positive: bytes to write to caller. negative: bytes to READ from
255 // caller. zero: non-data command
258 const int HDIO_DRIVE_CMD_OFFSET
= 4;
260 // See struct hd_drive_cmd_hdr in hdreg.h. Before calling ioctl()
261 // buff[0]: ATA COMMAND CODE REGISTER
262 // buff[1]: ATA SECTOR NUMBER REGISTER == LBA LOW REGISTER
263 // buff[2]: ATA FEATURES REGISTER
264 // buff[3]: ATA SECTOR COUNT REGISTER
266 // Note that on return:
267 // buff[2] contains the ATA SECTOR COUNT REGISTER
269 // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes)
270 memset(buff
, 0, BUFFER_LENGTH
);
272 buff
[0]=ATA_SMART_CMD
;
274 case CHECK_POWER_MODE
:
275 buff
[0]=ATA_CHECK_POWER_MODE
;
279 buff
[2]=ATA_SMART_READ_VALUES
;
283 case READ_THRESHOLDS
:
284 buff
[2]=ATA_SMART_READ_THRESHOLDS
;
289 buff
[2]=ATA_SMART_READ_LOG_SECTOR
;
297 buff
[0]=ATA_IDENTIFY_DEVICE
;
302 buff
[0]=ATA_IDENTIFY_PACKET_DEVICE
;
307 buff
[2]=ATA_SMART_ENABLE
;
311 buff
[2]=ATA_SMART_DISABLE
;
315 // this command only says if SMART is working. It could be
316 // replaced with STATUS_CHECK below.
317 buff
[2]=ATA_SMART_STATUS
;
320 // NOTE: According to ATAPI 4 and UP, this command is obsolete
321 // select == 241 for enable but no data transfer. Use TASK ioctl.
322 buff
[1]=ATA_SMART_AUTO_OFFLINE
;
326 // select == 248 for enable but no data transfer. Use TASK ioctl.
327 buff
[1]=ATA_SMART_AUTOSAVE
;
330 case IMMEDIATE_OFFLINE
:
331 buff
[2]=ATA_SMART_IMMEDIATE_OFFLINE
;
335 // This command uses HDIO_DRIVE_TASK and has different syntax than
336 // the other commands.
337 buff
[1]=ATA_SMART_STATUS
;
340 pout("Unrecognized command %d in linux_ata_command_interface()\n"
341 "Please contact " PACKAGE_BUGREPORT
"\n", command
);
346 // This command uses the HDIO_DRIVE_TASKFILE ioctl(). This is the
347 // only ioctl() that can be used to WRITE data to the disk.
348 if (command
==WRITE_LOG
) {
349 unsigned char task
[sizeof(ide_task_request_t
)+512];
350 ide_task_request_t
*reqtask
=(ide_task_request_t
*) task
;
351 task_struct_t
*taskfile
=(task_struct_t
*) reqtask
->io_ports
;
354 memset(task
, 0, sizeof(task
));
357 taskfile
->feature
= ATA_SMART_WRITE_LOG_SECTOR
;
358 taskfile
->sector_count
= 1;
359 taskfile
->sector_number
= select
;
360 taskfile
->low_cylinder
= 0x4f;
361 taskfile
->high_cylinder
= 0xc2;
362 taskfile
->device_head
= 0;
363 taskfile
->command
= ATA_SMART_CMD
;
365 reqtask
->data_phase
= TASKFILE_OUT
;
366 reqtask
->req_cmd
= IDE_DRIVE_TASK_OUT
;
367 reqtask
->out_size
= 512;
368 reqtask
->in_size
= 0;
370 // copy user data into the task request structure
371 memcpy(task
+sizeof(ide_task_request_t
), data
, 512);
373 if ((retval
=ioctl(get_fd(), HDIO_DRIVE_TASKFILE
, task
))) {
375 pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n");
381 // There are two different types of ioctls(). The HDIO_DRIVE_TASK
383 if (command
==STATUS_CHECK
|| command
==AUTOSAVE
|| command
==AUTO_OFFLINE
){
386 // NOT DOCUMENTED in /usr/src/linux/include/linux/hdreg.h. You
387 // have to read the IDE driver source code. Sigh.
388 // buff[0]: ATA COMMAND CODE REGISTER
389 // buff[1]: ATA FEATURES REGISTER
390 // buff[2]: ATA SECTOR_COUNT
391 // buff[3]: ATA SECTOR NUMBER
392 // buff[4]: ATA CYL LO REGISTER
393 // buff[5]: ATA CYL HI REGISTER
394 // buff[6]: ATA DEVICE HEAD
396 unsigned const char normal_lo
=0x4f, normal_hi
=0xc2;
397 unsigned const char failed_lo
=0xf4, failed_hi
=0x2c;
401 if ((retval
=ioctl(get_fd(), HDIO_DRIVE_TASK
, buff
))) {
402 if (retval
==-EINVAL
) {
403 pout("Error SMART Status command via HDIO_DRIVE_TASK failed");
404 pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n");
407 syserror("Error SMART Status command failed");
411 // Cyl low and Cyl high unchanged means "Good SMART status"
412 if (buff
[4]==normal_lo
&& buff
[5]==normal_hi
)
415 // These values mean "Bad SMART status"
416 if (buff
[4]==failed_lo
&& buff
[5]==failed_hi
)
419 // We haven't gotten output that makes sense; print out some debugging info
420 syserror("Error SMART Status command failed");
421 pout("Please get assistance from " PACKAGE_HOMEPAGE
"\n");
422 pout("Register values returned from SMART Status command are:\n");
423 pout("ST =0x%02x\n",(int)buff
[0]);
424 pout("ERR=0x%02x\n",(int)buff
[1]);
425 pout("NS =0x%02x\n",(int)buff
[2]);
426 pout("SC =0x%02x\n",(int)buff
[3]);
427 pout("CL =0x%02x\n",(int)buff
[4]);
428 pout("CH =0x%02x\n",(int)buff
[5]);
429 pout("SEL=0x%02x\n",(int)buff
[6]);
434 // Note to people doing ports to other OSes -- don't worry about
435 // this block -- you can safely ignore it. I have put it here
436 // because under linux when you do IDENTIFY DEVICE to a packet
437 // device, it generates an ugly kernel syslog error message. This
438 // is harmless but frightens users. So this block detects packet
439 // devices and make IDENTIFY DEVICE fail "nicely" without a syslog
442 // If you read only the ATA specs, it appears as if a packet device
443 // *might* respond to the IDENTIFY DEVICE command. This is
444 // misleading - it's because around the time that SFF-8020 was
445 // incorporated into the ATA-3/4 standard, the ATA authors were
446 // sloppy. See SFF-8020 and you will see that ATAPI devices have
447 // *always* had IDENTIFY PACKET DEVICE as a mandatory part of their
448 // command set, and return 'Command Aborted' to IDENTIFY DEVICE.
449 if (command
==IDENTIFY
|| command
==PIDENTIFY
){
450 unsigned short deviceid
[256];
451 // check the device identity, as seen when the system was booted
452 // or the device was FIRST registered. This will not be current
453 // if the user has subsequently changed some of the parameters. If
454 // device is a packet device, swap the command interpretations.
455 if (!ioctl(get_fd(), HDIO_GET_IDENTITY
, deviceid
) && (deviceid
[0] & 0x8000))
456 buff
[0]=(command
==IDENTIFY
)?ATA_IDENTIFY_PACKET_DEVICE
:ATA_IDENTIFY_DEVICE
;
460 // We are now doing the HDIO_DRIVE_CMD type ioctl.
461 if ((ioctl(get_fd(), HDIO_DRIVE_CMD
, buff
)))
464 // CHECK POWER MODE command returns information in the Sector Count
465 // register (buff[3]). Copy to return data buffer.
466 if (command
==CHECK_POWER_MODE
)
467 buff
[HDIO_DRIVE_CMD_OFFSET
]=buff
[2];
469 // if the command returns data then copy it back
471 memcpy(data
, buff
+HDIO_DRIVE_CMD_OFFSET
, copydata
);
476 // >>>>>> Start of general SCSI specific linux code
478 /* Linux specific code.
479 * Historically smartmontools (and smartsuite before it) used the
480 * SCSI_IOCTL_SEND_COMMAND ioctl which is available to all linux device
481 * nodes that use the SCSI subsystem. A better interface has been available
482 * via the SCSI generic (sg) driver but this involves the extra step of
483 * mapping disk devices (e.g. /dev/sda) to the corresponding sg device
484 * (e.g. /dev/sg2). In the linux kernel 2.6 series most of the facilities of
485 * the sg driver have become available via the SG_IO ioctl which is available
486 * on all SCSI devices (on SCSI tape devices from lk 2.6.6).
487 * So the strategy below is to find out if the SG_IO ioctl is available and
488 * if so use it; failing that use the older SCSI_IOCTL_SEND_COMMAND ioctl.
489 * Should work in 2.0, 2.2, 2.4 and 2.6 series linux kernels. */
491 #define MAX_DXFER_LEN 1024 /* can be increased if necessary */
492 #define SEND_IOCTL_RESP_SENSE_LEN 16 /* ioctl limitation */
493 #define SG_IO_RESP_SENSE_LEN 64 /* large enough see buffer */
494 #define LSCSI_DRIVER_MASK 0xf /* mask out "suggestions" */
495 #define LSCSI_DRIVER_SENSE 0x8 /* alternate CHECK CONDITION indication */
496 #define LSCSI_DID_ERROR 0x7 /* Need to work around aacraid driver quirk */
497 #define LSCSI_DRIVER_TIMEOUT 0x6
498 #define LSCSI_DID_TIME_OUT 0x3
499 #define LSCSI_DID_BUS_BUSY 0x2
500 #define LSCSI_DID_NO_CONNECT 0x1
502 #ifndef SCSI_IOCTL_SEND_COMMAND
503 #define SCSI_IOCTL_SEND_COMMAND 1
506 #define SG_IO_PRESENT_UNKNOWN 0
507 #define SG_IO_PRESENT_YES 1
508 #define SG_IO_PRESENT_NO 2
510 static int sg_io_cmnd_io(int dev_fd
, struct scsi_cmnd_io
* iop
, int report
,
512 static int sisc_cmnd_io(int dev_fd
, struct scsi_cmnd_io
* iop
, int report
);
514 static int sg_io_state
= SG_IO_PRESENT_UNKNOWN
;
516 /* Preferred implementation for issuing SCSI commands in linux. This
517 * function uses the SG_IO ioctl. Return 0 if command issued successfully
518 * (various status values should still be checked). If the SCSI command
519 * cannot be issued then a negative errno value is returned. */
520 static int sg_io_cmnd_io(int dev_fd
, struct scsi_cmnd_io
* iop
, int report
,
524 ARGUSED(dev_fd
); ARGUSED(iop
); ARGUSED(report
);
527 struct sg_io_hdr io_hdr
;
531 const unsigned char * ucp
= iop
->cmnd
;
534 const int sz
= (int)sizeof(buff
);
536 np
= scsi_get_opcode_name(ucp
[0]);
537 j
= snprintf(buff
, sz
, " [%s: ", np
? np
: "<unknown opcode>");
538 for (k
= 0; k
< (int)iop
->cmnd_len
; ++k
)
539 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "%02x ", ucp
[k
]);
541 (DXFER_TO_DEVICE
== iop
->dxfer_dir
) && (iop
->dxferp
)) {
542 int trunc
= (iop
->dxfer_len
> 256) ? 1 : 0;
544 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "]\n Outgoing "
545 "data, len=%d%s:\n", (int)iop
->dxfer_len
,
546 (trunc
? " [only first 256 bytes shown]" : ""));
547 dStrHex((const char *)iop
->dxferp
,
548 (trunc
? 256 : iop
->dxfer_len
) , 1);
551 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "]\n");
554 memset(&io_hdr
, 0, sizeof(struct sg_io_hdr
));
555 io_hdr
.interface_id
= 'S';
556 io_hdr
.cmd_len
= iop
->cmnd_len
;
557 io_hdr
.mx_sb_len
= iop
->max_sense_len
;
558 io_hdr
.dxfer_len
= iop
->dxfer_len
;
559 io_hdr
.dxferp
= iop
->dxferp
;
560 io_hdr
.cmdp
= iop
->cmnd
;
561 io_hdr
.sbp
= iop
->sensep
;
562 /* sg_io_hdr interface timeout has millisecond units. Timeout of 0
563 defaults to 60 seconds. */
564 io_hdr
.timeout
= ((0 == iop
->timeout
) ? 60 : iop
->timeout
) * 1000;
565 switch (iop
->dxfer_dir
) {
567 io_hdr
.dxfer_direction
= SG_DXFER_NONE
;
569 case DXFER_FROM_DEVICE
:
570 io_hdr
.dxfer_direction
= SG_DXFER_FROM_DEV
;
572 case DXFER_TO_DEVICE
:
573 io_hdr
.dxfer_direction
= SG_DXFER_TO_DEV
;
576 pout("do_scsi_cmnd_io: bad dxfer_dir\n");
579 iop
->resp_sense_len
= 0;
580 iop
->scsi_status
= 0;
582 if (ioctl(dev_fd
, SG_IO
, &io_hdr
) < 0) {
583 if (report
&& (! unknown
))
584 pout(" SG_IO ioctl failed, errno=%d [%s]\n", errno
,
588 iop
->resid
= io_hdr
.resid
;
589 iop
->scsi_status
= io_hdr
.status
;
591 pout(" scsi_status=0x%x, host_status=0x%x, driver_status=0x%x\n"
592 " info=0x%x duration=%d milliseconds resid=%d\n", io_hdr
.status
,
593 io_hdr
.host_status
, io_hdr
.driver_status
, io_hdr
.info
,
594 io_hdr
.duration
, io_hdr
.resid
);
596 if (DXFER_FROM_DEVICE
== iop
->dxfer_dir
) {
599 len
= iop
->dxfer_len
- iop
->resid
;
600 trunc
= (len
> 256) ? 1 : 0;
602 pout(" Incoming data, len=%d%s:\n", len
,
603 (trunc
? " [only first 256 bytes shown]" : ""));
604 dStrHex((const char*)iop
->dxferp
, (trunc
? 256 : len
),
607 pout(" Incoming data trimmed to nothing by resid\n");
612 if (io_hdr
.info
| SG_INFO_CHECK
) { /* error or warning */
613 int masked_driver_status
= (LSCSI_DRIVER_MASK
& io_hdr
.driver_status
);
615 if (0 != io_hdr
.host_status
) {
616 if ((LSCSI_DID_NO_CONNECT
== io_hdr
.host_status
) ||
617 (LSCSI_DID_BUS_BUSY
== io_hdr
.host_status
) ||
618 (LSCSI_DID_TIME_OUT
== io_hdr
.host_status
))
621 /* Check for DID_ERROR - workaround for aacraid driver quirk */
622 if (LSCSI_DID_ERROR
!= io_hdr
.host_status
) {
623 return -EIO
; /* catch all if not DID_ERR */
626 if (0 != masked_driver_status
) {
627 if (LSCSI_DRIVER_TIMEOUT
== masked_driver_status
)
629 else if (LSCSI_DRIVER_SENSE
!= masked_driver_status
)
632 if (LSCSI_DRIVER_SENSE
== masked_driver_status
)
633 iop
->scsi_status
= SCSI_STATUS_CHECK_CONDITION
;
634 iop
->resp_sense_len
= io_hdr
.sb_len_wr
;
635 if ((SCSI_STATUS_CHECK_CONDITION
== iop
->scsi_status
) &&
636 iop
->sensep
&& (iop
->resp_sense_len
> 0)) {
638 pout(" >>> Sense buffer, len=%d:\n",
639 (int)iop
->resp_sense_len
);
640 dStrHex((const char *)iop
->sensep
, iop
->resp_sense_len
, 1);
644 if (SCSI_STATUS_CHECK_CONDITION
== iop
->scsi_status
) {
645 if ((iop
->sensep
[0] & 0x7f) > 0x71)
646 pout(" status=%x: [desc] sense_key=%x asc=%x ascq=%x\n",
647 iop
->scsi_status
, iop
->sensep
[1] & 0xf,
648 iop
->sensep
[2], iop
->sensep
[3]);
650 pout(" status=%x: sense_key=%x asc=%x ascq=%x\n",
651 iop
->scsi_status
, iop
->sensep
[2] & 0xf,
652 iop
->sensep
[12], iop
->sensep
[13]);
655 pout(" status=0x%x\n", iop
->scsi_status
);
662 struct linux_ioctl_send_command
666 UINT8 buff
[MAX_DXFER_LEN
+ 16];
669 /* The Linux SCSI_IOCTL_SEND_COMMAND ioctl is primitive and it doesn't
670 * support: CDB length (guesses it from opcode), resid and timeout.
671 * Patches in Linux 2.4.21 and 2.5.70 to extend SEND DIAGNOSTIC timeout
672 * to 2 hours in order to allow long foreground extended self tests. */
673 static int sisc_cmnd_io(int dev_fd
, struct scsi_cmnd_io
* iop
, int report
)
675 struct linux_ioctl_send_command wrk
;
676 int status
, buff_offset
;
679 memcpy(wrk
.buff
, iop
->cmnd
, iop
->cmnd_len
);
680 buff_offset
= iop
->cmnd_len
;
683 const unsigned char * ucp
= iop
->cmnd
;
686 const int sz
= (int)sizeof(buff
);
688 np
= scsi_get_opcode_name(ucp
[0]);
689 j
= snprintf(buff
, sz
, " [%s: ", np
? np
: "<unknown opcode>");
690 for (k
= 0; k
< (int)iop
->cmnd_len
; ++k
)
691 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "%02x ", ucp
[k
]);
693 (DXFER_TO_DEVICE
== iop
->dxfer_dir
) && (iop
->dxferp
)) {
694 int trunc
= (iop
->dxfer_len
> 256) ? 1 : 0;
696 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "]\n Outgoing "
697 "data, len=%d%s:\n", (int)iop
->dxfer_len
,
698 (trunc
? " [only first 256 bytes shown]" : ""));
699 dStrHex((const char *)iop
->dxferp
,
700 (trunc
? 256 : iop
->dxfer_len
) , 1);
703 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "]\n");
706 switch (iop
->dxfer_dir
) {
711 case DXFER_FROM_DEVICE
:
713 if (iop
->dxfer_len
> MAX_DXFER_LEN
)
715 wrk
.outbufsize
= iop
->dxfer_len
;
717 case DXFER_TO_DEVICE
:
718 if (iop
->dxfer_len
> MAX_DXFER_LEN
)
720 memcpy(wrk
.buff
+ buff_offset
, iop
->dxferp
, iop
->dxfer_len
);
721 wrk
.inbufsize
= iop
->dxfer_len
;
725 pout("do_scsi_cmnd_io: bad dxfer_dir\n");
728 iop
->resp_sense_len
= 0;
729 iop
->scsi_status
= 0;
731 status
= ioctl(dev_fd
, SCSI_IOCTL_SEND_COMMAND
, &wrk
);
734 pout(" SCSI_IOCTL_SEND_COMMAND ioctl failed, errno=%d [%s]\n",
735 errno
, strerror(errno
));
741 if (DXFER_FROM_DEVICE
== iop
->dxfer_dir
) {
742 memcpy(iop
->dxferp
, wrk
.buff
, iop
->dxfer_len
);
744 int trunc
= (iop
->dxfer_len
> 256) ? 1 : 0;
746 pout(" Incoming data, len=%d%s:\n", (int)iop
->dxfer_len
,
747 (trunc
? " [only first 256 bytes shown]" : ""));
748 dStrHex((const char*)iop
->dxferp
,
749 (trunc
? 256 : iop
->dxfer_len
) , 1);
754 iop
->scsi_status
= status
& 0x7e; /* bits 0 and 7 used to be for vendors */
755 if (LSCSI_DRIVER_SENSE
== ((status
>> 24) & 0xf))
756 iop
->scsi_status
= SCSI_STATUS_CHECK_CONDITION
;
757 len
= (SEND_IOCTL_RESP_SENSE_LEN
< iop
->max_sense_len
) ?
758 SEND_IOCTL_RESP_SENSE_LEN
: iop
->max_sense_len
;
759 if ((SCSI_STATUS_CHECK_CONDITION
== iop
->scsi_status
) &&
760 iop
->sensep
&& (len
> 0)) {
761 memcpy(iop
->sensep
, wrk
.buff
, len
);
762 iop
->resp_sense_len
= len
;
764 pout(" >>> Sense buffer, len=%d:\n", (int)len
);
765 dStrHex((const char *)wrk
.buff
, len
, 1);
769 if (SCSI_STATUS_CHECK_CONDITION
== iop
->scsi_status
) {
770 pout(" status=%x: sense_key=%x asc=%x ascq=%x\n", status
& 0xff,
771 wrk
.buff
[2] & 0xf, wrk
.buff
[12], wrk
.buff
[13]);
774 pout(" status=0x%x\n", status
);
776 if (iop
->scsi_status
> 0)
780 pout(" ioctl status=0x%x but scsi status=0, fail with EIO\n",
782 return -EIO
; /* give up, assume no device there */
786 /* SCSI command transmission interface function, linux version.
787 * Returns 0 if SCSI command successfully launched and response
788 * received. Even when 0 is returned the caller should check
789 * scsi_cmnd_io::scsi_status for SCSI defined errors and warnings
790 * (e.g. CHECK CONDITION). If the SCSI command could not be issued
791 * (e.g. device not present or timeout) or some other problem
792 * (e.g. timeout) then returns a negative errno value */
793 static int do_normal_scsi_cmnd_io(int dev_fd
, struct scsi_cmnd_io
* iop
,
798 /* implementation relies on static sg_io_state variable. If not
799 * previously set tries the SG_IO ioctl. If that succeeds assume
800 * that SG_IO ioctl functional. If it fails with an errno value
801 * other than ENODEV (no device) or permission then assume
802 * SCSI_IOCTL_SEND_COMMAND is the only option. */
803 switch (sg_io_state
) {
804 case SG_IO_PRESENT_UNKNOWN
:
805 /* ignore report argument */
806 if (0 == (res
= sg_io_cmnd_io(dev_fd
, iop
, report
, 1))) {
807 sg_io_state
= SG_IO_PRESENT_YES
;
809 } else if ((-ENODEV
== res
) || (-EACCES
== res
) || (-EPERM
== res
))
810 return res
; /* wait until we see a device */
811 sg_io_state
= SG_IO_PRESENT_NO
;
812 /* drop through by design */
813 case SG_IO_PRESENT_NO
:
814 return sisc_cmnd_io(dev_fd
, iop
, report
);
815 case SG_IO_PRESENT_YES
:
816 return sg_io_cmnd_io(dev_fd
, iop
, report
, 0);
818 pout(">>>> do_scsi_cmnd_io: bad sg_io_state=%d\n", sg_io_state
);
819 sg_io_state
= SG_IO_PRESENT_UNKNOWN
;
820 return -EIO
; /* report error and reset state */
824 // >>>>>> End of general SCSI specific linux code
826 /////////////////////////////////////////////////////////////////////////////
827 /// Standard SCSI support
829 class linux_scsi_device
830 : public /*implements*/ scsi_device
,
831 public /*extends*/ linux_smart_device
834 linux_scsi_device(smart_interface
* intf
, const char * dev_name
, const char * req_type
);
836 virtual smart_device
* autodetect_open();
838 virtual bool scsi_pass_through(scsi_cmnd_io
* iop
);
841 linux_scsi_device::linux_scsi_device(smart_interface
* intf
,
842 const char * dev_name
, const char * req_type
)
843 : smart_device(intf
, dev_name
, "scsi", req_type
),
844 linux_smart_device(O_RDWR
| O_NONBLOCK
, O_RDONLY
| O_NONBLOCK
)
849 bool linux_scsi_device::scsi_pass_through(scsi_cmnd_io
* iop
)
851 int status
= do_normal_scsi_cmnd_io(get_fd(), iop
, con
->reportscsiioctl
);
853 return set_err(-status
);
857 /////////////////////////////////////////////////////////////////////////////
858 /// LSI MegaRAID support
860 class linux_megaraid_device
861 : public /* implements */ scsi_device
,
862 public /* extends */ linux_smart_device
865 linux_megaraid_device(smart_interface
*intf
, const char *name
,
866 unsigned int bus
, unsigned int tgt
);
868 virtual ~linux_megaraid_device() throw();
870 virtual smart_device
* autodetect_open();
873 virtual bool close();
875 virtual bool scsi_pass_through(scsi_cmnd_io
*iop
);
878 unsigned int m_disknum
;
879 unsigned int m_busnum
;
883 bool (linux_megaraid_device::*pt_cmd
)(int cdblen
, void *cdb
, int dataLen
, void *data
,
884 int senseLen
, void *sense
, int report
);
885 bool megasas_cmd(int cdbLen
, void *cdb
, int dataLen
, void *data
,
886 int senseLen
, void *sense
, int report
);
887 bool megadev_cmd(int cdbLen
, void *cdb
, int dataLen
, void *data
,
888 int senseLen
, void *sense
, int report
);
891 linux_megaraid_device::linux_megaraid_device(smart_interface
*intf
,
892 const char *dev_name
, unsigned int bus
, unsigned int tgt
)
893 : smart_device(intf
, dev_name
, "megaraid", "megaraid"),
894 linux_smart_device(O_RDWR
| O_NONBLOCK
),
895 m_disknum(tgt
), m_busnum(bus
), m_hba(0),
898 set_info().info_name
= strprintf("%s [megaraid_disk_%02d]", dev_name
, m_disknum
);
901 linux_megaraid_device::~linux_megaraid_device() throw()
907 smart_device
* linux_megaraid_device::autodetect_open()
909 int report
= con
->reportscsiioctl
;
915 // The code below is based on smartd.cpp:SCSIFilterKnown()
916 if (strcmp(get_req_type(), "megaraid"))
920 unsigned char req_buff
[64] = {0, };
922 if (scsiStdInquiry(this, req_buff
, req_len
)) {
924 set_err(EIO
, "INQUIRY failed");
928 int avail_len
= req_buff
[4] + 5;
929 int len
= (avail_len
< req_len
? avail_len
: req_len
);
934 printf("Got MegaRAID inquiry.. %s\n", req_buff
+8);
936 // Use INQUIRY to detect type
939 ata_device
* newdev
= smi()->autodetect_sat_device(this, req_buff
, len
);
941 // NOTE: 'this' is now owned by '*newdev'
945 // Nothing special found
950 bool linux_megaraid_device::open()
955 int report
= con
->reportscsiioctl
;
957 if (!linux_smart_device::open())
961 struct sg_scsi_id sgid
;
962 if (ioctl(get_fd(), SG_GET_SCSI_ID
, &sgid
) == 0) {
963 m_hba
= sgid
.host_no
;
965 else if (ioctl(get_fd(), SCSI_IOCTL_GET_BUS_NUMBER
, &m_hba
) != 0) {
967 linux_smart_device::close();
968 return set_err(err
, "can't get bus number");
971 /* Perform mknod of device ioctl node */
972 fp
= fopen("/proc/devices", "r");
973 while (fgets(line
, sizeof(line
), fp
) != NULL
) {
975 if (sscanf(line
, "%d megaraid_sas_ioctl%n", &mjr
, &n1
) == 1 && n1
== 22) {
976 n1
=mknod("/dev/megaraid_sas_ioctl_node", S_IFCHR
, makedev(mjr
, 0));
978 printf("Creating /dev/megaraid_sas_ioctl_node = %d\n", n1
>= 0 ? 0 : errno
);
979 if (n1
>= 0 || errno
== EEXIST
)
982 else if (sscanf(line
, "%d megadev%n", &mjr
, &n1
) == 1 && n1
== 11) {
983 n1
=mknod("/dev/megadev0", S_IFCHR
, makedev(mjr
, 0));
985 printf("Creating /dev/megadev0 = %d\n", n1
>= 0 ? 0 : errno
);
986 if (n1
>= 0 || errno
== EEXIST
)
992 /* Open Device IOCTL node */
993 if ((m_fd
= ::open("/dev/megaraid_sas_ioctl_node", O_RDWR
)) >= 0) {
994 pt_cmd
= &linux_megaraid_device::megasas_cmd
;
996 else if ((m_fd
= ::open("/dev/megadev0", O_RDWR
)) >= 0) {
997 pt_cmd
= &linux_megaraid_device::megadev_cmd
;
1001 linux_smart_device::close();
1002 return set_err(err
, "cannot open /dev/megaraid_sas_ioctl_node or /dev/megadev0");
1008 bool linux_megaraid_device::close()
1012 m_fd
= -1; m_hba
= 0; pt_cmd
= 0;
1013 return linux_smart_device::close();
1016 bool linux_megaraid_device::scsi_pass_through(scsi_cmnd_io
*iop
)
1018 int report
= con
->reportscsiioctl
;
1022 const unsigned char * ucp
= iop
->cmnd
;
1025 const int sz
= (int)sizeof(buff
);
1027 np
= scsi_get_opcode_name(ucp
[0]);
1028 j
= snprintf(buff
, sz
, " [%s: ", np
? np
: "<unknown opcode>");
1029 for (k
= 0; k
< (int)iop
->cmnd_len
; ++k
)
1030 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "%02x ", ucp
[k
]);
1032 (DXFER_TO_DEVICE
== iop
->dxfer_dir
) && (iop
->dxferp
)) {
1033 int trunc
= (iop
->dxfer_len
> 256) ? 1 : 0;
1035 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "]\n Outgoing "
1036 "data, len=%d%s:\n", (int)iop
->dxfer_len
,
1037 (trunc
? " [only first 256 bytes shown]" : ""));
1038 dStrHex((const char *)iop
->dxferp
,
1039 (trunc
? 256 : iop
->dxfer_len
) , 1);
1042 j
+= snprintf(&buff
[j
], (sz
> j
? (sz
- j
) : 0), "]\n");
1046 /* Controller rejects Enable SMART and Test Unit Ready */
1047 if (iop
->cmnd
[0] == 0x00)
1049 if (iop
->cmnd
[0] == 0x85 && iop
->cmnd
[1] == 0x06) {
1051 pout("Rejecting SMART/ATA command to controller\n");
1052 // Emulate SMART STATUS CHECK drive reply
1053 // smartctl fail to work without this
1054 if(iop
->cmnd
[2]==0x2c) {
1055 iop
->resp_sense_len
=22; // copied from real response
1056 iop
->sensep
[0]=0x72; // descriptor format
1057 iop
->sensep
[7]=0x0e; // additional length
1058 iop
->sensep
[8]=0x09; // description pointer
1059 iop
->sensep
[17]=0x4f; // low cylinder GOOD smart status
1060 iop
->sensep
[19]=0xc2; // high cylinder GOOD smart status
1067 return (this->*pt_cmd
)(iop
->cmnd_len
, iop
->cmnd
,
1068 iop
->dxfer_len
, iop
->dxferp
,
1069 iop
->max_sense_len
, iop
->sensep
, report
);
1072 /* Issue passthrough scsi command to PERC5/6 controllers */
1073 bool linux_megaraid_device::megasas_cmd(int cdbLen
, void *cdb
,
1074 int dataLen
, void *data
,
1075 int /*senseLen*/, void * /*sense*/, int /*report*/)
1077 struct megasas_pthru_frame
*pthru
;
1078 struct megasas_iocpacket uio
;
1081 memset(&uio
, 0, sizeof(uio
));
1082 pthru
= (struct megasas_pthru_frame
*)uio
.frame
.raw
;
1083 pthru
->cmd
= MFI_CMD_PD_SCSI_IO
;
1084 pthru
->cmd_status
= 0xFF;
1085 pthru
->scsi_status
= 0x0;
1086 pthru
->target_id
= m_disknum
;
1088 pthru
->cdb_len
= cdbLen
;
1090 pthru
->flags
= MFI_FRAME_DIR_READ
;
1091 pthru
->sge_count
= 1;
1092 pthru
->data_xfer_len
= dataLen
;
1093 pthru
->sgl
.sge32
[0].phys_addr
= (intptr_t)data
;
1094 pthru
->sgl
.sge32
[0].length
= (uint32_t)dataLen
;
1095 memcpy(pthru
->cdb
, cdb
, cdbLen
);
1097 uio
.host_no
= m_hba
;
1099 uio
.sgl_off
= offsetof(struct megasas_pthru_frame
, sgl
);
1100 uio
.sgl
[0].iov_base
= data
;
1101 uio
.sgl
[0].iov_len
= dataLen
;
1105 rc
= ioctl(m_fd
, MEGASAS_IOC_FIRMWARE
, &uio
);
1106 if (pthru
->cmd_status
|| rc
!= 0) {
1107 if (pthru
->cmd_status
== 12) {
1108 return set_err(EIO
, "megasas_cmd: Device %d does not exist\n", m_disknum
);
1110 return set_err((errno
? errno
: EIO
), "megasas_cmd result: %d.%d = %d/%d",
1111 m_hba
, m_disknum
, errno
,
1117 /* Issue passthrough scsi commands to PERC2/3/4 controllers */
1118 bool linux_megaraid_device::megadev_cmd(int cdbLen
, void *cdb
,
1119 int dataLen
, void *data
,
1120 int senseLen
, void *sense
, int /*report*/)
1122 struct uioctl_t uio
;
1128 /* Don't issue to the controller */
1132 memset(&uio
, 0, sizeof(uio
));
1133 uio
.inlen
= dataLen
;
1134 uio
.outlen
= dataLen
;
1136 memset(data
, 0, dataLen
);
1137 uio
.ui
.fcs
.opcode
= 0x80; // M_RD_IOCTL_CMD
1138 uio
.ui
.fcs
.adapno
= MKADAP(m_hba
);
1140 uio
.data
.pointer
= (uint8_t *)data
;
1142 uio
.mbox
.cmd
= MEGA_MBOXCMD_PASSTHRU
;
1143 uio
.mbox
.xferaddr
= (intptr_t)&uio
.pthru
;
1146 uio
.pthru
.timeout
= 2;
1147 uio
.pthru
.channel
= 0;
1148 uio
.pthru
.target
= m_disknum
;
1149 uio
.pthru
.cdblen
= cdbLen
;
1150 uio
.pthru
.reqsenselen
= MAX_REQ_SENSE_LEN
;
1151 uio
.pthru
.dataxferaddr
= (intptr_t)data
;
1152 uio
.pthru
.dataxferlen
= dataLen
;
1153 memcpy(uio
.pthru
.cdb
, cdb
, cdbLen
);
1155 rc
=ioctl(m_fd
, MEGAIOCCMD
, &uio
);
1156 if (uio
.pthru
.scsistatus
|| rc
!= 0) {
1157 return set_err((errno
? errno
: EIO
), "megadev_cmd result: %d.%d = %d/%d",
1158 m_hba
, m_disknum
, errno
,
1159 uio
.pthru
.scsistatus
);
1164 /////////////////////////////////////////////////////////////////////////////
1165 /// CCISS RAID support
1167 #ifdef HAVE_LINUX_CCISS_IOCTL_H
1169 class linux_cciss_device
1170 : public /*implements*/ scsi_device
,
1171 public /*extends*/ linux_smart_device
1174 linux_cciss_device(smart_interface
* intf
, const char * name
, unsigned char disknum
);
1176 virtual bool scsi_pass_through(scsi_cmnd_io
* iop
);
1179 unsigned char m_disknum
; ///< Disk number.
1182 linux_cciss_device::linux_cciss_device(smart_interface
* intf
,
1183 const char * dev_name
, unsigned char disknum
)
1184 : smart_device(intf
, dev_name
, "cciss", "cciss"),
1185 linux_smart_device(O_RDWR
| O_NONBLOCK
),
1188 set_info().info_name
= strprintf("%s [cciss_disk_%02d]", dev_name
, disknum
);
1191 bool linux_cciss_device::scsi_pass_through(scsi_cmnd_io
* iop
)
1193 int status
= cciss_io_interface(get_fd(), m_disknum
, iop
, con
->reportscsiioctl
);
1195 return set_err(-status
);
1199 #endif // HAVE_LINUX_CCISS_IOCTL_H
1201 /////////////////////////////////////////////////////////////////////////////
1202 /// AMCC/3ware RAID support
1204 class linux_escalade_device
1205 : public /*implements*/ ata_device
,
1206 public /*extends*/ linux_smart_device
1209 enum escalade_type_t
{
1211 AMCC_3WARE_678K_CHAR
,
1212 AMCC_3WARE_9000_CHAR
1215 linux_escalade_device(smart_interface
* intf
, const char * dev_name
,
1216 escalade_type_t escalade_type
, int disknum
);
1218 virtual bool open();
1220 virtual bool ata_pass_through(const ata_cmd_in
& in
, ata_cmd_out
& out
);
1223 escalade_type_t m_escalade_type
; ///< Controller type
1224 int m_disknum
; ///< Disk number.
1227 linux_escalade_device::linux_escalade_device(smart_interface
* intf
, const char * dev_name
,
1228 escalade_type_t escalade_type
, int disknum
)
1229 : smart_device(intf
, dev_name
, "3ware", "3ware"),
1230 linux_smart_device(O_RDONLY
| O_NONBLOCK
),
1231 m_escalade_type(escalade_type
), m_disknum(disknum
)
1233 set_info().info_name
= strprintf("%s [3ware_disk_%02d]", dev_name
, disknum
);
1236 /* This function will setup and fix device nodes for a 3ware controller. */
1237 #define MAJOR_STRING_LENGTH 3
1238 #define DEVICE_STRING_LENGTH 32
1239 #define NODE_STRING_LENGTH 16
1240 int setup_3ware_nodes(const char *nodename
, const char *driver_name
) {
1243 char majorstring
[MAJOR_STRING_LENGTH
+1];
1244 char device_name
[DEVICE_STRING_LENGTH
+1];
1245 char nodestring
[NODE_STRING_LENGTH
];
1246 struct stat stat_buf
;
1250 security_context_t orig_context
= NULL
;
1251 security_context_t node_context
= NULL
;
1252 int selinux_enabled
= is_selinux_enabled();
1253 int selinux_enforced
= security_getenforce();
1257 /* First try to open up /proc/devices */
1258 if (!(file
= fopen("/proc/devices", "r"))) {
1259 pout("Error opening /proc/devices to check/create 3ware device nodes\n");
1261 return 0; // don't fail here: user might not have /proc !
1264 /* Attempt to get device major number */
1265 while (EOF
!= fscanf(file
, "%3s %32s", majorstring
, device_name
)) {
1266 majorstring
[MAJOR_STRING_LENGTH
]='\0';
1267 device_name
[DEVICE_STRING_LENGTH
]='\0';
1268 if (!strncmp(device_name
, nodename
, DEVICE_STRING_LENGTH
)) {
1269 tw_major
= atoi(majorstring
);
1275 /* See if we found a major device number */
1277 pout("No major number for /dev/%s listed in /proc/devices. Is the %s driver loaded?\n", nodename
, driver_name
);
1281 /* Prepare a database of contexts for files in /dev
1282 * and save the current context */
1283 if (selinux_enabled
) {
1284 if (matchpathcon_init_prefix(NULL
, "/dev") < 0)
1285 pout("Error initializing contexts database for /dev");
1286 if (getfscreatecon(&orig_context
) < 0) {
1287 pout("Error retrieving original SELinux fscreate context");
1288 if (selinux_enforced
)
1289 matchpathcon_fini();
1294 /* Now check if nodes are correct */
1295 for (index
=0; index
<16; index
++) {
1296 sprintf(nodestring
, "/dev/%s%d", nodename
, index
);
1298 /* Get context of the node and set it as the default */
1299 if (selinux_enabled
) {
1300 if (matchpathcon(nodestring
, S_IRUSR
| S_IWUSR
, &node_context
) < 0) {
1301 pout("Could not retrieve context for %s", nodestring
);
1302 if (selinux_enforced
) {
1307 if (setfscreatecon(node_context
) < 0) {
1308 pout ("Error setting default fscreate context");
1309 if (selinux_enforced
) {
1316 /* Try to stat the node */
1317 if ((stat(nodestring
, &stat_buf
))) {
1318 pout("Node %s does not exist and must be created. Check the udev rules.\n", nodestring
);
1319 /* Create a new node if it doesn't exist */
1320 if (mknod(nodestring
, S_IFCHR
|0600, makedev(tw_major
, index
))) {
1321 pout("problem creating 3ware device nodes %s", nodestring
);
1327 if (selinux_enabled
&& node_context
) {
1328 freecon(node_context
);
1329 node_context
= NULL
;
1336 /* See if nodes major and minor numbers are correct */
1337 if ((tw_major
!= (int)(major(stat_buf
.st_rdev
))) ||
1338 (index
!= (int)(minor(stat_buf
.st_rdev
))) ||
1339 (!S_ISCHR(stat_buf
.st_mode
))) {
1340 pout("Node %s has wrong major/minor number and must be created anew."
1341 " Check the udev rules.\n", nodestring
);
1342 /* Delete the old node */
1343 if (unlink(nodestring
)) {
1344 pout("problem unlinking stale 3ware device node %s", nodestring
);
1350 /* Make a new node */
1351 if (mknod(nodestring
, S_IFCHR
|0600, makedev(tw_major
, index
))) {
1352 pout("problem creating 3ware device nodes %s", nodestring
);
1359 if (selinux_enabled
&& node_context
) {
1360 freecon(node_context
);
1361 node_context
= NULL
;
1367 if (selinux_enabled
) {
1368 if(setfscreatecon(orig_context
) < 0) {
1369 pout("Error re-setting original fscreate context");
1370 if (selinux_enforced
)
1374 freecon(orig_context
);
1376 freecon(node_context
);
1377 matchpathcon_fini();
1383 bool linux_escalade_device::open()
1385 if (m_escalade_type
== AMCC_3WARE_9000_CHAR
|| m_escalade_type
== AMCC_3WARE_678K_CHAR
) {
1386 // the device nodes for these controllers are dynamically assigned,
1387 // so we need to check that they exist with the correct major
1388 // numbers and if not, create them
1389 const char * node
= (m_escalade_type
== AMCC_3WARE_9000_CHAR
? "twa" : "twe" );
1390 const char * driver
= (m_escalade_type
== AMCC_3WARE_9000_CHAR
? "3w-9xxx": "3w-xxxx");
1391 if (setup_3ware_nodes(node
, driver
))
1392 return set_err((errno
? errno
: ENXIO
), "setup_3ware_nodes(\"%s\", \"%s\") failed", node
, driver
);
1394 // Continue with default open
1395 return linux_smart_device::open();
1398 // TODO: Function no longer useful
1399 //void printwarning(smart_command_set command);
1402 // This is an interface routine meant to isolate the OS dependent
1403 // parts of the code, and to provide a debugging interface. Each
1404 // different port and OS needs to provide it's own interface. This
1405 // is the linux interface to the 3ware 3w-xxxx driver. It allows ATA
1406 // commands to be passed through the SCSI driver.
1407 // DETAILED DESCRIPTION OF ARGUMENTS
1408 // fd: is the file descriptor provided by open()
1409 // disknum is the disk number (0 to 15) in the RAID array
1410 // escalade_type indicates the type of controller type, and if scsi or char interface is used
1411 // command: defines the different operations.
1412 // select: additional input data if needed (which log, which type of
1414 // data: location to write output data, if needed (512 bytes).
1415 // Note: not all commands use all arguments.
1417 // -1 if the command failed
1418 // 0 if the command succeeded,
1419 // STATUS_CHECK routine:
1420 // -1 if the command failed
1421 // 0 if the command succeeded and disk SMART status is "OK"
1422 // 1 if the command succeeded and disk SMART status is "FAILING"
1425 /* 512 is the max payload size: increase if needed */
1426 #define BUFFER_LEN_678K ( sizeof(TW_Ioctl) ) // 1044 unpacked, 1041 packed
1427 #define BUFFER_LEN_678K_CHAR ( sizeof(TW_New_Ioctl)+512-1 ) // 1539 unpacked, 1536 packed
1428 #define BUFFER_LEN_9000 ( sizeof(TW_Ioctl_Buf_Apache)+512-1 ) // 2051 unpacked, 2048 packed
1429 #define TW_IOCTL_BUFFER_SIZE ( MAX(MAX(BUFFER_LEN_678K, BUFFER_LEN_9000), BUFFER_LEN_678K_CHAR) )
1431 bool linux_escalade_device::ata_pass_through(const ata_cmd_in
& in
, ata_cmd_out
& out
)
1433 if (!ata_cmd_is_ok(in
,
1434 true, // data_out_support
1435 false, // TODO: multi_sector_support
1436 true) // ata_48bit_support
1440 // Used by both the SCSI and char interfaces
1441 TW_Passthru
*passthru
=NULL
;
1442 char ioctl_buffer
[TW_IOCTL_BUFFER_SIZE
];
1444 // only used for SCSI device interface
1445 TW_Ioctl
*tw_ioctl
=NULL
;
1446 TW_Output
*tw_output
=NULL
;
1448 // only used for 6000/7000/8000 char device interface
1449 TW_New_Ioctl
*tw_ioctl_char
=NULL
;
1451 // only used for 9000 character device interface
1452 TW_Ioctl_Buf_Apache
*tw_ioctl_apache
=NULL
;
1454 memset(ioctl_buffer
, 0, TW_IOCTL_BUFFER_SIZE
);
1456 // TODO: Handle controller differences by different classes
1457 if (m_escalade_type
==AMCC_3WARE_9000_CHAR
) {
1458 tw_ioctl_apache
= (TW_Ioctl_Buf_Apache
*)ioctl_buffer
;
1459 tw_ioctl_apache
->driver_command
.control_code
= TW_IOCTL_FIRMWARE_PASS_THROUGH
;
1460 tw_ioctl_apache
->driver_command
.buffer_length
= 512; /* payload size */
1461 passthru
= (TW_Passthru
*)&(tw_ioctl_apache
->firmware_command
.command
.oldcommand
);
1463 else if (m_escalade_type
==AMCC_3WARE_678K_CHAR
) {
1464 tw_ioctl_char
= (TW_New_Ioctl
*)ioctl_buffer
;
1465 tw_ioctl_char
->data_buffer_length
= 512;
1466 passthru
= (TW_Passthru
*)&(tw_ioctl_char
->firmware_command
);
1468 else if (m_escalade_type
==AMCC_3WARE_678K
) {
1469 tw_ioctl
= (TW_Ioctl
*)ioctl_buffer
;
1470 tw_ioctl
->cdb
[0] = TW_IOCTL
;
1471 tw_ioctl
->opcode
= TW_ATA_PASSTHRU
;
1472 tw_ioctl
->input_length
= 512; // correct even for non-data commands
1473 tw_ioctl
->output_length
= 512; // correct even for non-data commands
1474 tw_output
= (TW_Output
*)tw_ioctl
;
1475 passthru
= (TW_Passthru
*)&(tw_ioctl
->input_data
);
1478 return set_err(ENOSYS
,
1479 "Unrecognized escalade_type %d in linux_3ware_command_interface(disk %d)\n"
1480 "Please contact " PACKAGE_BUGREPORT
"\n", (int)m_escalade_type
, m_disknum
);
1483 // Same for (almost) all commands - but some reset below
1484 passthru
->byte0
.opcode
= TW_OP_ATA_PASSTHRU
;
1485 passthru
->request_id
= 0xFF;
1486 passthru
->unit
= m_disknum
;
1487 passthru
->status
= 0;
1488 passthru
->flags
= 0x1;
1492 const ata_in_regs_48bit
& r
= in
.in_regs
;
1493 passthru
->features
= r
.features_16
;
1494 passthru
->sector_count
= r
.sector_count_16
;
1495 passthru
->sector_num
= r
.lba_low_16
;
1496 passthru
->cylinder_lo
= r
.lba_mid_16
;
1497 passthru
->cylinder_hi
= r
.lba_high_16
;
1498 passthru
->drive_head
= r
.device
;
1499 passthru
->command
= r
.command
;
1502 // Is this a command that reads or returns 512 bytes?
1503 // passthru->param values are:
1504 // 0x0 - non data command without TFR write check,
1505 // 0x8 - non data command with TFR write check,
1506 // 0xD - data command that returns data to host from device
1507 // 0xF - data command that writes data from host to device
1508 // passthru->size values are 0x5 for non-data and 0x07 for data
1509 bool readdata
= false;
1510 if (in
.direction
== ata_cmd_in::data_in
) {
1512 passthru
->byte0
.sgloff
= 0x5;
1513 passthru
->size
= 0x7; // TODO: Other value for multi-sector ?
1514 passthru
->param
= 0xD;
1515 // For 64-bit to work correctly, up the size of the command packet
1516 // in dwords by 1 to account for the 64-bit single sgl 'address'
1517 // field. Note that this doesn't agree with the typedefs but it's
1518 // right (agree with kernel driver behavior/typedefs).
1519 if (m_escalade_type
==AMCC_3WARE_9000_CHAR
&& sizeof(long)==8)
1522 else if (in
.direction
== ata_cmd_in::no_data
) {
1523 // Non data command -- but doesn't use large sector
1524 // count register values.
1525 passthru
->byte0
.sgloff
= 0x0;
1526 passthru
->size
= 0x5;
1527 passthru
->param
= 0x8;
1528 passthru
->sector_count
= 0x0;
1530 else if (in
.direction
== ata_cmd_in::data_out
) {
1531 if (m_escalade_type
== AMCC_3WARE_9000_CHAR
)
1532 memcpy(tw_ioctl_apache
->data_buffer
, in
.buffer
, in
.size
);
1533 else if (m_escalade_type
== AMCC_3WARE_678K_CHAR
)
1534 memcpy(tw_ioctl_char
->data_buffer
, in
.buffer
, in
.size
);
1536 // COMMAND NOT SUPPORTED VIA SCSI IOCTL INTERFACE
1537 // memcpy(tw_output->output_data, data, 512);
1538 // printwarning(command); // TODO: Parameter no longer valid
1539 return set_err(ENOTSUP
, "DATA OUT not supported for this 3ware controller type");
1541 passthru
->byte0
.sgloff
= 0x5;
1542 passthru
->size
= 0x7; // TODO: Other value for multi-sector ?
1543 passthru
->param
= 0xF; // PIO data write
1544 if (m_escalade_type
==AMCC_3WARE_9000_CHAR
&& sizeof(long)==8)
1548 return set_err(EINVAL
);
1550 // Now send the command down through an ioctl()
1552 if (m_escalade_type
==AMCC_3WARE_9000_CHAR
)
1553 ioctlreturn
=ioctl(get_fd(), TW_IOCTL_FIRMWARE_PASS_THROUGH
, tw_ioctl_apache
);
1554 else if (m_escalade_type
==AMCC_3WARE_678K_CHAR
)
1555 ioctlreturn
=ioctl(get_fd(), TW_CMD_PACKET_WITH_DATA
, tw_ioctl_char
);
1557 ioctlreturn
=ioctl(get_fd(), SCSI_IOCTL_SEND_COMMAND
, tw_ioctl
);
1559 // Deal with the different error cases
1561 if (AMCC_3WARE_678K
==m_escalade_type
1562 && in
.in_regs
.command
==ATA_SMART_CMD
1563 && ( in
.in_regs
.features
== ATA_SMART_AUTO_OFFLINE
1564 || in
.in_regs
.features
== ATA_SMART_AUTOSAVE
)
1565 && in
.in_regs
.lba_low
) {
1566 // error here is probably a kernel driver whose version is too old
1567 // printwarning(command); // TODO: Parameter no longer valid
1568 return set_err(ENOTSUP
, "Probably kernel driver too old");
1570 return set_err(EIO
);
1573 // The passthru structure is valid after return from an ioctl if:
1574 // - we are using the character interface OR
1575 // - we are using the SCSI interface and this is a NON-READ-DATA command
1576 // For SCSI interface, note that we set passthru to a different
1577 // value after ioctl().
1578 if (AMCC_3WARE_678K
==m_escalade_type
) {
1582 passthru
=(TW_Passthru
*)&(tw_output
->output_data
);
1585 // See if the ATA command failed. Now that we have returned from
1586 // the ioctl() call, if passthru is valid, then:
1587 // - passthru->status contains the 3ware controller STATUS
1588 // - passthru->command contains the ATA STATUS register
1589 // - passthru->features contains the ATA ERROR register
1591 // Check bits 0 (error bit) and 5 (device fault) of the ATA STATUS
1592 // If bit 0 (error bit) is set, then ATA ERROR register is valid.
1593 // While we *might* decode the ATA ERROR register, at the moment it
1594 // doesn't make much sense: we don't care in detail why the error
1597 if (passthru
&& (passthru
->status
|| (passthru
->command
& 0x21))) {
1598 return set_err(EIO
);
1601 // If this is a read data command, copy data to output buffer
1603 if (m_escalade_type
==AMCC_3WARE_9000_CHAR
)
1604 memcpy(in
.buffer
, tw_ioctl_apache
->data_buffer
, in
.size
);
1605 else if (m_escalade_type
==AMCC_3WARE_678K_CHAR
)
1606 memcpy(in
.buffer
, tw_ioctl_char
->data_buffer
, in
.size
);
1608 memcpy(in
.buffer
, tw_output
->output_data
, in
.size
);
1611 // Return register values
1613 ata_out_regs_48bit
& r
= out
.out_regs
;
1614 r
.error
= passthru
->features
;
1615 r
.sector_count_16
= passthru
->sector_count
;
1616 r
.lba_low_16
= passthru
->sector_num
;
1617 r
.lba_mid_16
= passthru
->cylinder_lo
;
1618 r
.lba_high_16
= passthru
->cylinder_hi
;
1619 r
.device
= passthru
->drive_head
;
1620 r
.status
= passthru
->command
;
1623 // look for nonexistent devices/ports
1624 if ( in
.in_regs
.command
== ATA_IDENTIFY_DEVICE
1625 && !nonempty((unsigned char *)in
.buffer
, in
.size
)) {
1626 return set_err(ENODEV
, "No drive on port %d", m_disknum
);
1633 /////////////////////////////////////////////////////////////////////////////
1634 /// Areca RAID support
1636 class linux_areca_device
1637 : public /*implements*/ ata_device_with_command_set
,
1638 public /*extends*/ linux_smart_device
1641 linux_areca_device(smart_interface
* intf
, const char * dev_name
, int disknum
);
1644 virtual int ata_command_interface(smart_command_set command
, int select
, char * data
);
1647 int m_disknum
; ///< Disk number.
1652 // This is an interface routine meant to isolate the OS dependent
1653 // parts of the code, and to provide a debugging interface. Each
1654 // different port and OS needs to provide it's own interface. This
1655 // is the linux interface to the Areca "arcmsr" driver. It allows ATA
1656 // commands to be passed through the SCSI driver.
1657 // DETAILED DESCRIPTION OF ARGUMENTS
1658 // fd: is the file descriptor provided by open()
1659 // disknum is the disk number (0 to 15) in the RAID array
1660 // command: defines the different operations.
1661 // select: additional input data if needed (which log, which type of
1663 // data: location to write output data, if needed (512 bytes).
1664 // Note: not all commands use all arguments.
1666 // -1 if the command failed
1667 // 0 if the command succeeded,
1668 // STATUS_CHECK routine:
1669 // -1 if the command failed
1670 // 0 if the command succeeded and disk SMART status is "OK"
1671 // 1 if the command succeeded and disk SMART status is "FAILING"
1675 #define ARECA_SATA_RAID 0x90000000
1677 #define FUNCTION_READ_RQBUFFER 0x0801
1678 #define FUNCTION_WRITE_WQBUFFER 0x0802
1679 #define FUNCTION_CLEAR_RQBUFFER 0x0803
1680 #define FUNCTION_CLEAR_WQBUFFER 0x0804
1682 /* ARECA IO CONTROL CODE*/
1683 #define ARCMSR_IOCTL_READ_RQBUFFER (ARECA_SATA_RAID | FUNCTION_READ_RQBUFFER)
1684 #define ARCMSR_IOCTL_WRITE_WQBUFFER (ARECA_SATA_RAID | FUNCTION_WRITE_WQBUFFER)
1685 #define ARCMSR_IOCTL_CLEAR_RQBUFFER (ARECA_SATA_RAID | FUNCTION_CLEAR_RQBUFFER)
1686 #define ARCMSR_IOCTL_CLEAR_WQBUFFER (ARECA_SATA_RAID | FUNCTION_CLEAR_WQBUFFER)
1687 #define ARECA_SIG_STR "ARCMSR"
1689 // The SRB_IO_CONTROL & SRB_BUFFER structures are used to communicate(to/from) to areca driver
1690 typedef struct _SRB_IO_CONTROL
1692 unsigned int HeaderLength
;
1693 unsigned char Signature
[8];
1694 unsigned int Timeout
;
1695 unsigned int ControlCode
;
1696 unsigned int ReturnCode
;
1697 unsigned int Length
;
1700 typedef struct _SRB_BUFFER
1702 sSRB_IO_CONTROL srbioctl
;
1703 unsigned char ioctldatabuffer
[1032]; // the buffer to put the command data to/from firmware
1706 // Looks in /proc/scsi to suggest correct areca devices
1707 // If hint not NULL, return device path guess
1708 int find_areca_in_proc(char *hint
) {
1710 const char* proc_format_string
="host\tchan\tid\tlun\ttype\topens\tqdepth\tbusy\tonline\n";
1712 // check data formwat
1713 FILE *fp
=fopen("/proc/scsi/sg/device_hdr", "r");
1715 pout("Unable to open /proc/scsi/sg/device_hdr for reading\n");
1719 // get line, compare to format
1722 char *out
= fgets(linebuf
, 256, fp
);
1725 pout("Unable to read contents of /proc/scsi/sg/device_hdr\n");
1729 if (strcmp(linebuf
, proc_format_string
)) {
1731 // Fix this by comparing only tokens not white space!!
1732 pout("Unexpected format %s in /proc/scsi/sg/device_hdr\n", proc_format_string
);
1736 // Format is understood, now search for correct device
1737 fp
=fopen("/proc/scsi/sg/devices", "r");
1739 int host
, chan
, id
, lun
, type
, opens
, qdepth
, busy
, online
;
1742 // search all lines of /proc/scsi/sg/devices
1743 while (9 == fscanf(fp
, "%d %d %d %d %d %d %d %d %d", &host
, &chan
, &id
, &lun
, &type
, &opens
, &qdepth
, &busy
, &online
)) {
1745 if (id
== 16 && type
== 3) {
1746 // devices with id=16 and type=3 might be Areca controllers
1747 if (!found
&& hint
) {
1748 sprintf(hint
, "/dev/sg%d", dev
);
1750 pout("Device /dev/sg%d appears to be an Areca controller.\n", dev
);
1760 void dumpdata( unsigned char *block
, int len
)
1762 int ln
= (len
/ 16) + 1; // total line#
1766 printf(" Address = %p, Length = (0x%x)%d\n", block
, len
, len
);
1767 printf(" 0 1 2 3 4 5 6 7 8 9 A B C D E F ASCII \n");
1768 printf("=====================================================================\n");
1770 for ( int l
= 0; l
< ln
&& len
; l
++ )
1772 // printf the line# and the HEX data
1773 // if a line data length < 16 then append the space to the tail of line to reach 16 chars
1774 printf("%02X | ", l
);
1775 for ( pos
= 0; pos
< 16 && len
; pos
++, len
-- )
1777 c
= block
[l
*16+pos
];
1783 for ( int loop
= pos
; loop
< 16; loop
++ )
1790 for ( int loop
= 0; loop
< pos
; loop
++ )
1792 c
= block
[l
*16+loop
];
1793 if ( c
>= 0x20 && c
<= 0x7F )
1804 printf("=====================================================================\n");
1809 int arcmsr_command_handler(int fd
, unsigned long arcmsr_cmd
, unsigned char *data
, int data_len
, void *ext_data
/* reserved for further use */)
1813 int ioctlreturn
= 0;
1815 struct scsi_cmnd_io io_hdr
;
1816 int dir
= DXFER_TO_DEVICE
;
1821 unsigned char *areca_return_packet
;
1824 unsigned char return_buff
[2048];
1825 unsigned char *ptr
= &return_buff
[0];
1826 memset(return_buff
, 0, sizeof(return_buff
));
1828 memset((unsigned char *)&sBuf
, 0, sizeof(sBuf
));
1829 memset(&io_hdr
, 0, sizeof(io_hdr
));
1830 memset(cdb
, 0, sizeof(cdb
));
1831 memset(sense
, 0, sizeof(sense
));
1834 sBuf
.srbioctl
.HeaderLength
= sizeof(sSRB_IO_CONTROL
);
1835 memcpy(sBuf
.srbioctl
.Signature
, ARECA_SIG_STR
, strlen(ARECA_SIG_STR
));
1836 sBuf
.srbioctl
.Timeout
= 10000;
1837 sBuf
.srbioctl
.ControlCode
= ARCMSR_IOCTL_READ_RQBUFFER
;
1839 switch ( arcmsr_cmd
)
1841 // command for writing data to driver
1842 case ARCMSR_IOCTL_WRITE_WQBUFFER
:
1843 if ( data
&& data_len
)
1845 sBuf
.srbioctl
.Length
= data_len
;
1846 memcpy((unsigned char *)sBuf
.ioctldatabuffer
, (unsigned char *)data
, data_len
);
1848 // commands for clearing related buffer of driver
1849 case ARCMSR_IOCTL_CLEAR_RQBUFFER
:
1850 case ARCMSR_IOCTL_CLEAR_WQBUFFER
:
1851 cdb
[0] = 0x3B; //SCSI_WRITE_BUF command;
1853 // command for reading data from driver
1854 case ARCMSR_IOCTL_READ_RQBUFFER
:
1855 cdb
[0] = 0x3C; //SCSI_READ_BUF command;
1856 dir
= DXFER_FROM_DEVICE
;
1859 // unknown arcmsr commands
1866 // cdb[5][6][7][8] areca defined command code( to/from driver )
1868 cdb
[5] = (char)( arcmsr_cmd
>> 24);
1869 cdb
[6] = (char)( arcmsr_cmd
>> 16);
1870 cdb
[7] = (char)( arcmsr_cmd
>> 8);
1871 cdb
[8] = (char)( arcmsr_cmd
& 0x0F );
1873 io_hdr
.dxfer_dir
= dir
;
1874 io_hdr
.dxfer_len
= sizeof(sBuf
);
1875 io_hdr
.dxferp
= (unsigned char *)&sBuf
;
1877 io_hdr
.cmnd_len
= sizeof(cdb
);
1878 io_hdr
.sensep
= sense
;
1879 io_hdr
.max_sense_len
= sizeof(sense
);
1880 io_hdr
.timeout
= SCSI_TIMEOUT_DEFAULT
;
1884 ioctlreturn
= do_normal_scsi_cmnd_io(fd
, &io_hdr
, 0);
1885 if ( ioctlreturn
|| io_hdr
.scsi_status
)
1891 if ( arcmsr_cmd
!= ARCMSR_IOCTL_READ_RQBUFFER
)
1893 // if succeeded, just returns the length of outgoing data
1897 if ( sBuf
.srbioctl
.Length
)
1899 //dumpdata(&sBuf.ioctldatabuffer[0], sBuf.srbioctl.Length);
1900 memcpy(ptr
, &sBuf
.ioctldatabuffer
[0], sBuf
.srbioctl
.Length
);
1901 ptr
+= sBuf
.srbioctl
.Length
;
1902 total
+= sBuf
.srbioctl
.Length
;
1903 // the returned bytes enough to compute payload length ?
1904 if ( expected
< 0 && total
>= 5 )
1906 areca_return_packet
= (unsigned char *)&return_buff
[0];
1907 if ( areca_return_packet
[0] == 0x5E &&
1908 areca_return_packet
[1] == 0x01 &&
1909 areca_return_packet
[2] == 0x61 )
1911 // valid header, let's compute the returned payload length,
1912 // we expected the total length is
1913 // payload + 3 bytes header + 2 bytes length + 1 byte checksum
1914 expected
= areca_return_packet
[4] * 256 + areca_return_packet
[3] + 6;
1918 if ( total
>= 7 && total
>= expected
)
1920 //printf("total bytes received = %d, expected length = %d\n", total, expected);
1922 // ------ Okay! we received enough --------
1928 // Deal with the different error cases
1931 printf("do_scsi_cmnd_io with write buffer failed code = %x\n", ioctlreturn
);
1936 if ( io_hdr
.scsi_status
)
1938 printf("io_hdr.scsi_status with write buffer failed code = %x\n", io_hdr
.scsi_status
);
1945 memcpy(data
, return_buff
, total
);
1952 linux_areca_device::linux_areca_device(smart_interface
* intf
, const char * dev_name
, int disknum
)
1953 : smart_device(intf
, dev_name
, "areca", "areca"),
1954 linux_smart_device(O_RDWR
| O_EXCL
| O_NONBLOCK
),
1957 set_info().info_name
= strprintf("%s [areca_%02d]", dev_name
, disknum
);
1960 // Areca RAID Controller
1961 int linux_areca_device::ata_command_interface(smart_command_set command
, int select
, char * data
)
1963 // ATA input registers
1964 typedef struct _ATA_INPUT_REGISTERS
1966 unsigned char features
;
1967 unsigned char sector_count
;
1968 unsigned char sector_number
;
1969 unsigned char cylinder_low
;
1970 unsigned char cylinder_high
;
1971 unsigned char device_head
;
1972 unsigned char command
;
1973 unsigned char reserved
[8];
1974 unsigned char data
[512]; // [in/out] buffer for outgoing/incoming data
1975 } sATA_INPUT_REGISTERS
;
1977 // ATA output registers
1978 // Note: The output registers is re-sorted for areca internal use only
1979 typedef struct _ATA_OUTPUT_REGISTERS
1981 unsigned char error
;
1982 unsigned char status
;
1983 unsigned char sector_count
;
1984 unsigned char sector_number
;
1985 unsigned char cylinder_low
;
1986 unsigned char cylinder_high
;
1987 }sATA_OUTPUT_REGISTERS
;
1989 // Areca packet format for outgoing:
1990 // B[0~2] : 3 bytes header, fixed value 0x5E, 0x01, 0x61
1991 // B[3~4] : 2 bytes command length + variant data length, little endian
1992 // B[5] : 1 bytes areca defined command code, ATA passthrough command code is 0x1c
1993 // B[6~last-1] : variant bytes payload data
1994 // B[last] : 1 byte checksum, simply sum(B[3] ~ B[last -1])
1997 // header 3 bytes length 2 bytes cmd 1 byte payload data x bytes cs 1 byte
1998 // +--------------------------------------------------------------------------------+
1999 // + 0x5E 0x01 0x61 | 0x00 0x00 | 0x1c | .................... | 0x00 |
2000 // +--------------------------------------------------------------------------------+
2003 //Areca packet format for incoming:
2004 // B[0~2] : 3 bytes header, fixed value 0x5E, 0x01, 0x61
2005 // B[3~4] : 2 bytes payload length, little endian
2006 // B[5~last-1] : variant bytes returned payload data
2007 // B[last] : 1 byte checksum, simply sum(B[3] ~ B[last -1])
2010 // header 3 bytes length 2 bytes payload data x bytes cs 1 byte
2011 // +-------------------------------------------------------------------+
2012 // + 0x5E 0x01 0x61 | 0x00 0x00 | .................... | 0x00 |
2013 // +-------------------------------------------------------------------+
2014 unsigned char areca_packet
[640];
2015 int areca_packet_len
= sizeof(areca_packet
);
2016 unsigned char cs
= 0;
2018 sATA_INPUT_REGISTERS
*ata_cmd
;
2022 memset(sInq
, 0, sizeof(sInq
));
2023 scsiStdInquiry(fd
, (unsigned char *)sInq
, (int)sizeof(sInq
));
2024 dumpdata((unsigned char *)sInq
, sizeof(sInq
));
2026 memset(areca_packet
, 0, areca_packet_len
);
2028 // ----- BEGIN TO SETUP HEADERS -------
2029 areca_packet
[0] = 0x5E;
2030 areca_packet
[1] = 0x01;
2031 areca_packet
[2] = 0x61;
2032 areca_packet
[3] = (unsigned char)((areca_packet_len
- 6) & 0xff);
2033 areca_packet
[4] = (unsigned char)(((areca_packet_len
- 6) >> 8) & 0xff);
2034 areca_packet
[5] = 0x1c; // areca defined code for ATA passthrough command
2037 // ----- BEGIN TO SETUP PAYLOAD DATA -----
2039 memcpy(&areca_packet
[7], "SmrT", 4); // areca defined password
2041 ata_cmd
= (sATA_INPUT_REGISTERS
*)&areca_packet
[12];
2042 ata_cmd
->cylinder_low
= 0x4F;
2043 ata_cmd
->cylinder_high
= 0xC2;
2046 if ( command
== READ_VALUES
||
2047 command
== READ_THRESHOLDS
||
2048 command
== READ_LOG
||
2049 command
== IDENTIFY
||
2050 command
== PIDENTIFY
)
2052 // the commands will return data
2053 areca_packet
[6] = 0x13;
2054 ata_cmd
->sector_count
= 0x1;
2056 else if ( command
== WRITE_LOG
)
2058 // the commands will write data
2059 areca_packet
[6] = 0x14;
2063 // the commands will return no data
2064 areca_packet
[6] = 0x15;
2068 ata_cmd
->command
= ATA_SMART_CMD
;
2069 // Now set ATA registers depending upon command
2072 case CHECK_POWER_MODE
:
2073 //printf("command = CHECK_POWER_MODE\n");
2074 ata_cmd
->command
= ATA_CHECK_POWER_MODE
;
2077 //printf("command = READ_VALUES\n");
2078 ata_cmd
->features
= ATA_SMART_READ_VALUES
;
2080 case READ_THRESHOLDS
:
2081 //printf("command = READ_THRESHOLDS\n");
2082 ata_cmd
->features
= ATA_SMART_READ_THRESHOLDS
;
2085 //printf("command = READ_LOG\n");
2086 ata_cmd
->features
= ATA_SMART_READ_LOG_SECTOR
;
2087 ata_cmd
->sector_number
= select
;
2090 //printf("command = WRITE_LOG\n");
2091 ata_cmd
->features
= ATA_SMART_WRITE_LOG_SECTOR
;
2092 memcpy(ata_cmd
->data
, data
, 512);
2093 ata_cmd
->sector_count
= 1;
2094 ata_cmd
->sector_number
= select
;
2097 //printf("command = IDENTIFY\n");
2098 ata_cmd
->command
= ATA_IDENTIFY_DEVICE
;
2101 //printf("command = PIDENTIFY\n");
2105 //printf("command = ENABLE\n");
2106 ata_cmd
->features
= ATA_SMART_ENABLE
;
2109 //printf("command = DISABLE\n");
2110 ata_cmd
->features
= ATA_SMART_DISABLE
;
2113 //printf("command = AUTO_OFFLINE\n");
2114 ata_cmd
->features
= ATA_SMART_AUTO_OFFLINE
;
2115 // Enable or disable?
2116 ata_cmd
->sector_count
= select
;
2119 //printf("command = AUTOSAVE\n");
2120 ata_cmd
->features
= ATA_SMART_AUTOSAVE
;
2121 // Enable or disable?
2122 ata_cmd
->sector_count
= select
;
2124 case IMMEDIATE_OFFLINE
:
2125 //printf("command = IMMEDIATE_OFFLINE\n");
2126 ata_cmd
->features
= ATA_SMART_IMMEDIATE_OFFLINE
;
2127 // What test type to run?
2128 ata_cmd
->sector_number
= select
;
2131 //printf("command = STATUS_CHECK\n");
2132 ata_cmd
->features
= ATA_SMART_STATUS
;
2135 //printf("command = STATUS\n");
2136 ata_cmd
->features
= ATA_SMART_STATUS
;
2139 //printf("command = UNKNOWN\n");
2144 areca_packet
[11] = m_disknum
- 1; // drive number
2146 // ----- BEGIN TO SETUP CHECKSUM -----
2147 for ( int loop
= 3; loop
< areca_packet_len
- 1; loop
++ )
2149 cs
+= areca_packet
[loop
];
2151 areca_packet
[areca_packet_len
-1] = cs
;
2153 // ----- BEGIN TO SEND TO ARECA DRIVER ------
2155 unsigned char return_buff
[2048];
2156 memset(return_buff
, 0, sizeof(return_buff
));
2158 expected
= arcmsr_command_handler(get_fd(), ARCMSR_IOCTL_CLEAR_RQBUFFER
, NULL
, 0, NULL
);
2160 find_areca_in_proc(NULL
);
2164 expected
= arcmsr_command_handler(get_fd(), ARCMSR_IOCTL_CLEAR_WQBUFFER
, NULL
, 0, NULL
);
2165 expected
= arcmsr_command_handler(get_fd(), ARCMSR_IOCTL_WRITE_WQBUFFER
, areca_packet
, areca_packet_len
, NULL
);
2168 expected
= arcmsr_command_handler(get_fd(), ARCMSR_IOCTL_READ_RQBUFFER
, return_buff
, sizeof(return_buff
), NULL
);
2175 // ----- VERIFY THE CHECKSUM -----
2177 for ( int loop
= 3; loop
< expected
- 1; loop
++ )
2179 cs
+= return_buff
[loop
];
2182 if ( return_buff
[expected
- 1] != cs
)
2188 sATA_OUTPUT_REGISTERS
*ata_out
= (sATA_OUTPUT_REGISTERS
*)&return_buff
[5] ;
2189 if ( ata_out
->status
)
2191 if ( command
== IDENTIFY
)
2193 pout("The firmware of your Areca RAID controller appears to be outdated!\n" \
2194 "Please update your controller to firmware version 1.46 or later.\n" \
2195 "You may download it here: ftp://ftp.areca.com.tw/RaidCards/BIOS_Firmware\n\n");
2201 // returns with data
2202 if ( command
== READ_VALUES
||
2203 command
== READ_THRESHOLDS
||
2204 command
== READ_LOG
||
2205 command
== IDENTIFY
||
2206 command
== PIDENTIFY
)
2208 memcpy(data
, &return_buff
[7], 512);
2211 if ( command
== CHECK_POWER_MODE
)
2213 data
[0] = ata_out
->sector_count
;
2216 if ( command
== STATUS_CHECK
&&
2217 ( ata_out
->cylinder_low
== 0xF4 && ata_out
->cylinder_high
== 0x2C ) )
2226 /////////////////////////////////////////////////////////////////////////////
2229 class linux_marvell_device
2230 : public /*implements*/ ata_device_with_command_set
,
2231 public /*extends*/ linux_smart_device
2234 linux_marvell_device(smart_interface
* intf
, const char * dev_name
, const char * req_type
);
2237 virtual int ata_command_interface(smart_command_set command
, int select
, char * data
);
2240 linux_marvell_device::linux_marvell_device(smart_interface
* intf
,
2241 const char * dev_name
, const char * req_type
)
2242 : smart_device(intf
, dev_name
, "marvell", req_type
),
2243 linux_smart_device(O_RDONLY
| O_NONBLOCK
)
2247 int linux_marvell_device::ata_command_interface(smart_command_set command
, int select
, char * data
)
2256 mvsata_scsi_cmd smart_command
;
2257 unsigned char *buff
= (unsigned char *)&smart_command
.cmd
[6];
2258 // See struct hd_drive_cmd_hdr in hdreg.h
2259 // buff[0]: ATA COMMAND CODE REGISTER
2260 // buff[1]: ATA SECTOR NUMBER REGISTER
2261 // buff[2]: ATA FEATURES REGISTER
2262 // buff[3]: ATA SECTOR COUNT REGISTER
2264 // clear out buff. Large enough for HDIO_DRIVE_CMD (4+512 bytes)
2265 memset(&smart_command
, 0, sizeof(smart_command
));
2266 smart_command
.inlen
= 540;
2267 smart_command
.outlen
= 540;
2268 smart_command
.cmd
[0] = 0xC; //Vendor-specific code
2269 smart_command
.cmd
[4] = 6; //command length
2271 buff
[0] = ATA_SMART_CMD
;
2273 case CHECK_POWER_MODE
:
2274 buff
[0]=ATA_CHECK_POWER_MODE
;
2277 buff
[2]=ATA_SMART_READ_VALUES
;
2280 case READ_THRESHOLDS
:
2281 buff
[2]=ATA_SMART_READ_THRESHOLDS
;
2282 copydata
=buff
[1]=buff
[3]=1;
2285 buff
[2]=ATA_SMART_READ_LOG_SECTOR
;
2290 buff
[0]=ATA_IDENTIFY_DEVICE
;
2294 buff
[0]=ATA_IDENTIFY_PACKET_DEVICE
;
2298 buff
[2]=ATA_SMART_ENABLE
;
2302 buff
[2]=ATA_SMART_DISABLE
;
2307 // this command only says if SMART is working. It could be
2308 // replaced with STATUS_CHECK below.
2309 buff
[2] = ATA_SMART_STATUS
;
2312 buff
[2]=ATA_SMART_AUTO_OFFLINE
;
2313 buff
[3]=select
; // YET NOTE - THIS IS A NON-DATA COMMAND!!
2316 buff
[2]=ATA_SMART_AUTOSAVE
;
2317 buff
[3]=select
; // YET NOTE - THIS IS A NON-DATA COMMAND!!
2319 case IMMEDIATE_OFFLINE
:
2320 buff
[2]=ATA_SMART_IMMEDIATE_OFFLINE
;
2324 pout("Unrecognized command %d in mvsata_os_specific_handler()\n", command
);
2328 // There are two different types of ioctls(). The HDIO_DRIVE_TASK
2330 // We are now doing the HDIO_DRIVE_CMD type ioctl.
2331 if (ioctl(get_fd(), SCSI_IOCTL_SEND_COMMAND
, (void *)&smart_command
))
2334 if (command
==CHECK_POWER_MODE
) {
2335 // LEON -- CHECK THIS PLEASE. THIS SHOULD BE THE SECTOR COUNT
2336 // REGISTER, AND IT MIGHT BE buff[2] NOT buff[3]. Bruce
2341 // Always succeed on a SMART status, as a disk that failed returned
2342 // buff[4]=0xF4, buff[5]=0x2C, i.e. "Bad SMART status" (see below).
2343 if (command
== STATUS
)
2345 //Data returned is starting from 0 offset
2346 if (command
== STATUS_CHECK
)
2348 // Cyl low and Cyl high unchanged means "Good SMART status"
2349 if (buff
[4] == 0x4F && buff
[5] == 0xC2)
2351 // These values mean "Bad SMART status"
2352 if (buff
[4] == 0xF4 && buff
[5] == 0x2C)
2354 // We haven't gotten output that makes sense; print out some debugging info
2355 syserror("Error SMART Status command failed");
2356 pout("Please get assistance from %s\n",PACKAGE_BUGREPORT
);
2357 pout("Register values returned from SMART Status command are:\n");
2358 pout("CMD =0x%02x\n",(int)buff
[0]);
2359 pout("FR =0x%02x\n",(int)buff
[1]);
2360 pout("NS =0x%02x\n",(int)buff
[2]);
2361 pout("SC =0x%02x\n",(int)buff
[3]);
2362 pout("CL =0x%02x\n",(int)buff
[4]);
2363 pout("CH =0x%02x\n",(int)buff
[5]);
2364 pout("SEL=0x%02x\n",(int)buff
[6]);
2369 memcpy(data
, buff
, 512);
2374 /////////////////////////////////////////////////////////////////////////////
2375 /// Highpoint RAID support
2377 class linux_highpoint_device
2378 : public /*implements*/ ata_device_with_command_set
,
2379 public /*extends*/ linux_smart_device
2382 linux_highpoint_device(smart_interface
* intf
, const char * dev_name
,
2383 unsigned char controller
, unsigned char channel
, unsigned char port
);
2386 virtual int ata_command_interface(smart_command_set command
, int select
, char * data
);
2389 unsigned char m_hpt_data
[3]; ///< controller/channel/port
2392 linux_highpoint_device::linux_highpoint_device(smart_interface
* intf
, const char * dev_name
,
2393 unsigned char controller
, unsigned char channel
, unsigned char port
)
2394 : smart_device(intf
, dev_name
, "hpt", "hpt"),
2395 linux_smart_device(O_RDONLY
| O_NONBLOCK
)
2397 m_hpt_data
[0] = controller
; m_hpt_data
[1] = channel
; m_hpt_data
[2] = port
;
2398 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]);
2401 // this implementation is derived from ata_command_interface with a header
2402 // packing for highpoint linux driver ioctl interface
2404 // ioctl(fd,HPTIO_CTL,buff)
2407 // structure of hpt_buff
2408 // +----+----+----+----+--------------------.....---------------------+
2409 // | 1 | 2 | 3 | 4 | 5 |
2410 // +----+----+----+----+--------------------.....---------------------+
2412 // 1: The target controller [ int ( 4 Bytes ) ]
2413 // 2: The channel of the target controllee [ int ( 4 Bytes ) ]
2414 // 3: HDIO_ ioctl call [ int ( 4 Bytes ) ]
2415 // available from ${LINUX_KERNEL_SOURCE}/Documentation/ioctl/hdio
2416 // 4: the pmport that disk attached, [ int ( 4 Bytes ) ]
2417 // if no pmport device, set to 1 or leave blank
2418 // 5: data [ void * ( var leangth ) ]
2420 #define STRANGE_BUFFER_LENGTH (4+512*0xf8)
2422 int linux_highpoint_device::ata_command_interface(smart_command_set command
, int select
, char * data
)
2424 unsigned char hpt_buff
[4*sizeof(int) + STRANGE_BUFFER_LENGTH
];
2425 unsigned int *hpt
= (unsigned int *)hpt_buff
;
2426 unsigned char *buff
= &hpt_buff
[4*sizeof(int)];
2428 const int HDIO_DRIVE_CMD_OFFSET
= 4;
2430 memset(hpt_buff
, 0, 4*sizeof(int) + STRANGE_BUFFER_LENGTH
);
2431 hpt
[0] = m_hpt_data
[0]; // controller id
2432 hpt
[1] = m_hpt_data
[1]; // channel number
2433 hpt
[3] = m_hpt_data
[2]; // pmport number
2435 buff
[0]=ATA_SMART_CMD
;
2437 case CHECK_POWER_MODE
:
2438 buff
[0]=ATA_CHECK_POWER_MODE
;
2442 buff
[2]=ATA_SMART_READ_VALUES
;
2446 case READ_THRESHOLDS
:
2447 buff
[2]=ATA_SMART_READ_THRESHOLDS
;
2452 buff
[2]=ATA_SMART_READ_LOG_SECTOR
;
2460 buff
[0]=ATA_IDENTIFY_DEVICE
;
2465 buff
[0]=ATA_IDENTIFY_PACKET_DEVICE
;
2470 buff
[2]=ATA_SMART_ENABLE
;
2474 buff
[2]=ATA_SMART_DISABLE
;
2478 buff
[2]=ATA_SMART_STATUS
;
2481 buff
[2]=ATA_SMART_AUTO_OFFLINE
;
2485 buff
[2]=ATA_SMART_AUTOSAVE
;
2488 case IMMEDIATE_OFFLINE
:
2489 buff
[2]=ATA_SMART_IMMEDIATE_OFFLINE
;
2493 buff
[1]=ATA_SMART_STATUS
;
2496 pout("Unrecognized command %d in linux_highpoint_command_interface()\n"
2497 "Please contact " PACKAGE_BUGREPORT
"\n", command
);
2502 if (command
==WRITE_LOG
) {
2503 unsigned char task
[4*sizeof(int)+sizeof(ide_task_request_t
)+512];
2504 unsigned int *hpt
= (unsigned int *)task
;
2505 ide_task_request_t
*reqtask
= (ide_task_request_t
*)(&task
[4*sizeof(int)]);
2506 task_struct_t
*taskfile
= (task_struct_t
*)reqtask
->io_ports
;
2509 memset(task
, 0, sizeof(task
));
2511 hpt
[0] = m_hpt_data
[0]; // controller id
2512 hpt
[1] = m_hpt_data
[1]; // channel number
2513 hpt
[3] = m_hpt_data
[2]; // pmport number
2514 hpt
[2] = HDIO_DRIVE_TASKFILE
; // real hd ioctl
2517 taskfile
->feature
= ATA_SMART_WRITE_LOG_SECTOR
;
2518 taskfile
->sector_count
= 1;
2519 taskfile
->sector_number
= select
;
2520 taskfile
->low_cylinder
= 0x4f;
2521 taskfile
->high_cylinder
= 0xc2;
2522 taskfile
->device_head
= 0;
2523 taskfile
->command
= ATA_SMART_CMD
;
2525 reqtask
->data_phase
= TASKFILE_OUT
;
2526 reqtask
->req_cmd
= IDE_DRIVE_TASK_OUT
;
2527 reqtask
->out_size
= 512;
2528 reqtask
->in_size
= 0;
2530 memcpy(task
+sizeof(ide_task_request_t
)+4*sizeof(int), data
, 512);
2532 if ((retval
=ioctl(get_fd(), HPTIO_CTL
, task
))) {
2533 if (retval
==-EINVAL
)
2534 pout("Kernel lacks HDIO_DRIVE_TASKFILE support; compile kernel with CONFIG_IDE_TASKFILE_IO set\n");
2540 if (command
==STATUS_CHECK
){
2542 unsigned const char normal_lo
=0x4f, normal_hi
=0xc2;
2543 unsigned const char failed_lo
=0xf4, failed_hi
=0x2c;
2547 hpt
[2] = HDIO_DRIVE_TASK
;
2549 if ((retval
=ioctl(get_fd(), HPTIO_CTL
, hpt_buff
))) {
2550 if (retval
==-EINVAL
) {
2551 pout("Error SMART Status command via HDIO_DRIVE_TASK failed");
2552 pout("Rebuild older linux 2.2 kernels with HDIO_DRIVE_TASK support added\n");
2555 syserror("Error SMART Status command failed");
2559 if (buff
[4]==normal_lo
&& buff
[5]==normal_hi
)
2562 if (buff
[4]==failed_lo
&& buff
[5]==failed_hi
)
2565 syserror("Error SMART Status command failed");
2566 pout("Please get assistance from " PACKAGE_HOMEPAGE
"\n");
2567 pout("Register values returned from SMART Status command are:\n");
2568 pout("CMD=0x%02x\n",(int)buff
[0]);
2569 pout("FR =0x%02x\n",(int)buff
[1]);
2570 pout("NS =0x%02x\n",(int)buff
[2]);
2571 pout("SC =0x%02x\n",(int)buff
[3]);
2572 pout("CL =0x%02x\n",(int)buff
[4]);
2573 pout("CH =0x%02x\n",(int)buff
[5]);
2574 pout("SEL=0x%02x\n",(int)buff
[6]);
2579 if (command
==IDENTIFY
|| command
==PIDENTIFY
) {
2580 unsigned char deviceid
[4*sizeof(int)+512*sizeof(char)];
2581 unsigned int *hpt
= (unsigned int *)deviceid
;
2583 hpt
[0] = m_hpt_data
[0]; // controller id
2584 hpt
[1] = m_hpt_data
[1]; // channel number
2585 hpt
[3] = m_hpt_data
[2]; // pmport number
2587 hpt
[2] = HDIO_GET_IDENTITY
;
2588 if (!ioctl(get_fd(), HPTIO_CTL
, deviceid
) && (deviceid
[4*sizeof(int)] & 0x8000))
2589 buff
[0]=(command
==IDENTIFY
)?ATA_IDENTIFY_PACKET_DEVICE
:ATA_IDENTIFY_DEVICE
;
2593 hpt
[2] = HDIO_DRIVE_CMD
;
2594 if ((ioctl(get_fd(), HPTIO_CTL
, hpt_buff
)))
2597 if (command
==CHECK_POWER_MODE
)
2598 buff
[HDIO_DRIVE_CMD_OFFSET
]=buff
[2];
2601 memcpy(data
, buff
+HDIO_DRIVE_CMD_OFFSET
, copydata
);
2607 #if 0 // TODO: Migrate from 'smart_command_set' to 'ata_in_regs' OR remove the function
2608 // Utility function for printing warnings
2609 void printwarning(smart_command_set command
){
2610 static int printed
[4]={0,0,0,0};
2611 const char* message
=
2612 "can not be passed through the 3ware 3w-xxxx driver. This can be fixed by\n"
2613 "applying a simple 3w-xxxx driver patch that can be found here:\n"
2614 PACKAGE_HOMEPAGE
"\n"
2615 "Alternatively, upgrade your 3w-xxxx driver to version 1.02.00.037 or greater.\n\n";
2617 if (command
==AUTO_OFFLINE
&& !printed
[0]) {
2619 pout("The SMART AUTO-OFFLINE ENABLE command (smartmontools -o on option/Directive)\n%s", message
);
2621 else if (command
==AUTOSAVE
&& !printed
[1]) {
2623 pout("The SMART AUTOSAVE ENABLE command (smartmontools -S on option/Directive)\n%s", message
);
2625 else if (command
==STATUS_CHECK
&& !printed
[2]) {
2627 pout("The SMART RETURN STATUS return value (smartmontools -H option/Directive)\n%s", message
);
2629 else if (command
==WRITE_LOG
&& !printed
[3]) {
2631 pout("The SMART WRITE LOG command (smartmontools -t selective) only supported via char /dev/tw[ae] interface\n");
2639 /////////////////////////////////////////////////////////////////////////////
2640 /// SCSI open with autodetection support
2642 smart_device
* linux_scsi_device::autodetect_open()
2648 // No Autodetection if device type was specified by user
2649 if (*get_req_type())
2652 // The code below is based on smartd.cpp:SCSIFilterKnown()
2655 unsigned char req_buff
[64] = {0, };
2657 if (scsiStdInquiry(this, req_buff
, req_len
)) {
2658 // Marvell controllers fail on a 36 bytes StdInquiry, but 64 suffices
2659 // watch this spot ... other devices could lock up here
2661 if (scsiStdInquiry(this, req_buff
, req_len
)) {
2662 // device doesn't like INQUIRY commands
2664 set_err(EIO
, "INQUIRY failed");
2669 int avail_len
= req_buff
[4] + 5;
2670 int len
= (avail_len
< req_len
? avail_len
: req_len
);
2674 // Use INQUIRY to detect type
2677 if (!memcmp(req_buff
+ 8, "3ware", 5) || !memcmp(req_buff
+ 8, "AMCC", 4)) {
2679 set_err(EINVAL
, "AMCC/3ware controller, please try adding '-d 3ware,N',\n"
2680 "you may need to replace %s with /dev/twaN or /dev/tweN", get_dev_name());
2685 if (!memcmp(req_buff
+ 8, "DELL PERC", 12) || !memcmp(req_buff
+ 8, "MegaRAID", 8)) {
2687 set_err(EINVAL
, "DELL or MegaRaid controller, please try adding '-d megaraid,N'");
2692 if (len
>= 42 && !memcmp(req_buff
+ 36, "MVSATA", 6)) {
2693 //pout("Device %s: using '-d marvell' for ATA disk with Marvell driver\n", get_dev_name());
2695 smart_device_auto_ptr
newdev(
2696 new linux_marvell_device(smi(), get_dev_name(), get_req_type())
2698 newdev
->open(); // TODO: Can possibly pass open fd
2700 return newdev
.release();
2705 smart_device
* newdev
= smi()->autodetect_sat_device(this, req_buff
, len
);
2707 // NOTE: 'this' is now owned by '*newdev'
2711 // Nothing special found
2716 //////////////////////////////////////////////////////////////////////
2717 // USB bridge ID detection
2719 // Read USB ID from /sys file
2720 static bool read_id(const std::string
& path
, unsigned short & id
)
2722 FILE * f
= fopen(path
.c_str(), "r");
2726 bool ok
= (fscanf(f
, "%hx%n", &id
, &n
) == 1 && n
== 4);
2731 // Get USB bridge ID for "sdX"
2732 static bool get_usb_id(const char * name
, unsigned short & vendor_id
,
2733 unsigned short & product_id
, unsigned short & version
)
2735 // Only "sdX" supported
2736 if (!(!strncmp(name
, "sd", 2) && !strchr(name
, '/')))
2739 // Start search at dir referenced by symlink "/sys/block/sdX/device"
2740 // -> "/sys/devices/.../usb*/.../host*/target*/..."
2741 std::string dir
= strprintf("/sys/block/%s/device", name
);
2743 // Stop search at "/sys/devices"
2745 if (stat("/sys/devices", &st
))
2747 ino_t stop_ino
= st
.st_ino
;
2749 // Search in parent directories until "idVendor" is found,
2750 // fail if "/sys/devices" reached or too many iterations
2754 if (!(++cnt
< 10 && !stat(dir
.c_str(), &st
) && st
.st_ino
!= stop_ino
))
2756 } while (access((dir
+ "/idVendor").c_str(), 0));
2759 if (!( read_id(dir
+ "/idVendor", vendor_id
)
2760 && read_id(dir
+ "/idProduct", product_id
)
2761 && read_id(dir
+ "/bcdDevice", version
) ))
2764 if (con
->reportscsiioctl
> 1)
2765 pout("USB ID = 0x%04x:0x%04x (0x%03x)\n", vendor_id
, product_id
, version
);
2770 //////////////////////////////////////////////////////////////////////
2773 class linux_smart_interface
2774 : public /*implements*/ smart_interface
2777 virtual std::string
get_app_examples(const char * appname
);
2779 virtual bool scan_smart_devices(smart_device_list
& devlist
, const char * type
,
2780 const char * pattern
= 0);
2783 virtual ata_device
* get_ata_device(const char * name
, const char * type
);
2785 virtual scsi_device
* get_scsi_device(const char * name
, const char * type
);
2787 virtual smart_device
* autodetect_smart_device(const char * name
);
2789 virtual smart_device
* get_custom_smart_device(const char * name
, const char * type
);
2791 virtual std::string
get_valid_custom_dev_types_str();
2794 bool get_dev_list(smart_device_list
& devlist
, const char * pattern
,
2795 bool scan_ata
, bool scan_scsi
, const char * req_type
, bool autodetect
);
2797 smart_device
* missing_option(const char * opt
);
2800 std::string
linux_smart_interface::get_app_examples(const char * appname
)
2802 if (!strcmp(appname
, "smartctl"))
2803 return smartctl_examples
;
2808 // we are going to take advantage of the fact that Linux's devfs will only
2809 // have device entries for devices that exist. So if we get the equivalent of
2810 // ls /dev/hd[a-t], we have all the ATA devices on the system
2811 bool linux_smart_interface::get_dev_list(smart_device_list
& devlist
,
2812 const char * pattern
, bool scan_ata
, bool scan_scsi
,
2813 const char * req_type
, bool autodetect
)
2815 // Use glob to look for any directory entries matching the pattern
2817 memset(&globbuf
, 0, sizeof(globbuf
));
2818 int retglob
= glob(pattern
, GLOB_ERR
, NULL
, &globbuf
);
2820 // glob failed: free memory and return
2823 if (retglob
==GLOB_NOMATCH
){
2824 pout("glob(3) found no matches for pattern %s\n", pattern
);
2828 if (retglob
==GLOB_NOSPACE
)
2829 set_err(ENOMEM
, "glob(3) ran out of memory matching pattern %s", pattern
);
2830 #ifdef GLOB_ABORTED // missing in old versions of glob.h
2831 else if (retglob
==GLOB_ABORTED
)
2832 set_err(EINVAL
, "glob(3) aborted matching pattern %s", pattern
);
2835 set_err(EINVAL
, "Unexplained error in glob(3) of pattern %s", pattern
);
2840 // did we find too many paths?
2841 const int max_pathc
= 32;
2842 int n
= (int)globbuf
.gl_pathc
;
2843 if (n
> max_pathc
) {
2844 pout("glob(3) found %d > MAX=%d devices matching pattern %s: ignoring %d paths\n",
2845 n
, max_pathc
, pattern
, n
- max_pathc
);
2849 // now step through the list returned by glob. If not a link, copy
2850 // to list. If it is a link, evaluate it and see if the path ends
2852 for (int i
= 0; i
< n
; i
++){
2853 // see if path is a link
2855 int retlink
= readlink(globbuf
.gl_pathv
[i
], linkbuf
, sizeof(linkbuf
)-1);
2857 char tmpname
[1024]={0};
2858 const char * name
= 0;
2859 bool is_scsi
= scan_scsi
;
2860 // if not a link (or a strange link), keep it
2861 if (retlink
<=0 || retlink
>1023)
2862 name
= globbuf
.gl_pathv
[i
];
2864 // or if it's a link that points to a disc, follow it
2865 linkbuf
[retlink
] = 0;
2867 if ((p
=strrchr(linkbuf
, '/')) && !strcmp(p
+1, "disc"))
2868 // This is the branch of the code that gets followed if we are
2869 // using devfs WITH traditional compatibility links. In this
2870 // case, we add the traditional device name to the list that
2872 name
= globbuf
.gl_pathv
[i
];
2874 // This is the branch of the code that gets followed if we are
2875 // using devfs WITHOUT traditional compatibility links. In
2876 // this case, we check that the link to the directory is of
2877 // the correct type, and then append "disc" to it.
2878 bool match_ata
= strstr(linkbuf
, "ide");
2879 bool match_scsi
= strstr(linkbuf
, "scsi");
2880 if (((match_ata
&& scan_ata
) || (match_scsi
&& scan_scsi
)) && !(match_ata
&& match_scsi
)) {
2881 is_scsi
= match_scsi
;
2882 snprintf(tmpname
, sizeof(tmpname
), "%s/disc", globbuf
.gl_pathv
[i
]);
2889 // Found a name, add device to list.
2892 dev
= autodetect_smart_device(name
);
2894 dev
= new linux_scsi_device(this, name
, req_type
);
2896 dev
= new linux_ata_device(this, name
, req_type
);
2897 if (dev
) // autodetect_smart_device() may return nullptr.
2898 devlist
.push_back(dev
);
2908 bool linux_smart_interface::scan_smart_devices(smart_device_list
& devlist
,
2909 const char * type
, const char * pattern
/*= 0*/)
2912 set_err(EINVAL
, "DEVICESCAN with pattern not implemented yet");
2919 bool scan_ata
= (!*type
|| !strcmp(type
, "ata" ));
2920 bool scan_scsi
= (!*type
|| !strcmp(type
, "scsi"));
2921 if (!(scan_ata
|| scan_scsi
))
2925 get_dev_list(devlist
, "/dev/hd[a-t]", true, false, type
, false);
2926 if (scan_scsi
) // Try USB autodetection if no type specifed
2927 get_dev_list(devlist
, "/dev/sd[a-z]", false, true, type
, !*type
);
2929 // if we found traditional links, we are done
2930 if (devlist
.size() > 0)
2933 // else look for devfs entries without traditional links
2934 // TODO: Add udev support
2935 return get_dev_list(devlist
, "/dev/discs/disc*", scan_ata
, scan_scsi
, type
, false);
2938 ata_device
* linux_smart_interface::get_ata_device(const char * name
, const char * type
)
2940 return new linux_ata_device(this, name
, type
);
2943 scsi_device
* linux_smart_interface::get_scsi_device(const char * name
, const char * type
)
2945 return new linux_scsi_device(this, name
, type
);
2948 smart_device
* linux_smart_interface::missing_option(const char * opt
)
2950 set_err(EINVAL
, "requires option '%s'", opt
);
2954 // Return true if STR starts with PREFIX.
2955 static bool str_starts_with(const char * str
, const char * prefix
)
2957 return !strncmp(str
, prefix
, strlen(prefix
));
2960 // Guess device type (ata or scsi) based on device name (Linux
2961 // specific) SCSI device name in linux can be sd, sr, scd, st, nst,
2962 // osst, nosst and sg.
2963 static const char * lin_dev_prefix
= "/dev/";
2964 static const char * lin_dev_ata_disk_plus
= "h";
2965 static const char * lin_dev_ata_devfs_disk_plus
= "ide/";
2966 static const char * lin_dev_scsi_devfs_disk_plus
= "scsi/";
2967 static const char * lin_dev_scsi_disk_plus
= "s";
2968 static const char * lin_dev_scsi_tape1
= "ns";
2969 static const char * lin_dev_scsi_tape2
= "os";
2970 static const char * lin_dev_scsi_tape3
= "nos";
2971 static const char * lin_dev_3ware_9000_char
= "twa";
2972 static const char * lin_dev_3ware_678k_char
= "twe";
2973 static const char * lin_dev_cciss_dir
= "cciss/";
2974 static const char * lin_dev_areca
= "sg";
2976 smart_device
* linux_smart_interface::autodetect_smart_device(const char * name
)
2978 const char * dev_name
= name
; // TODO: Remove this hack
2979 int dev_prefix_len
= strlen(lin_dev_prefix
);
2981 // if dev_name null, or string length zero
2983 if (!dev_name
|| !(len
= strlen(dev_name
)))
2986 // Dereference if /dev/disk/by-*/* symlink
2988 if ( str_starts_with(dev_name
, "/dev/disk/by-")
2989 && readlink(dev_name
, linkbuf
, sizeof(linkbuf
)) > 0
2990 && str_starts_with(linkbuf
, "../../")) {
2991 dev_name
= linkbuf
+ sizeof("../../")-1;
2993 // Remove the leading /dev/... if it's there
2994 else if (!strncmp(lin_dev_prefix
, dev_name
, dev_prefix_len
)) {
2995 if (len
<= dev_prefix_len
)
2996 // if nothing else in the string, unrecognized
2998 // else advance pointer to following characters
2999 dev_name
+= dev_prefix_len
;
3002 // form /dev/h* or h*
3003 if (!strncmp(lin_dev_ata_disk_plus
, dev_name
,
3004 strlen(lin_dev_ata_disk_plus
)))
3005 return new linux_ata_device(this, name
, "");
3007 // form /dev/ide/* or ide/*
3008 if (!strncmp(lin_dev_ata_devfs_disk_plus
, dev_name
,
3009 strlen(lin_dev_ata_devfs_disk_plus
)))
3010 return new linux_ata_device(this, name
, "");
3012 // form /dev/s* or s*
3013 if (!strncmp(lin_dev_scsi_disk_plus
, dev_name
,
3014 strlen(lin_dev_scsi_disk_plus
))) {
3016 // Try to detect possible USB->(S)ATA bridge
3017 unsigned short vendor_id
= 0, product_id
= 0, version
= 0;
3018 if (get_usb_id(dev_name
, vendor_id
, product_id
, version
)) {
3019 const char * usbtype
= get_usb_dev_type_by_id(vendor_id
, product_id
, version
);
3022 // Linux USB layer does not support 16 byte SAT pass through command
3023 if (!strcmp(usbtype
, "sat"))
3025 // Return SAT/USB device for this type
3026 // (Note: linux_scsi_device::autodetect_open() will not be called in this case)
3027 return get_sat_device(usbtype
, new linux_scsi_device(this, name
, ""));
3030 // No USB bridge found, assume regular SCSI device
3031 return new linux_scsi_device(this, name
, "");
3034 // form /dev/scsi/* or scsi/*
3035 if (!strncmp(lin_dev_scsi_devfs_disk_plus
, dev_name
,
3036 strlen(lin_dev_scsi_devfs_disk_plus
)))
3037 return new linux_scsi_device(this, name
, "");
3039 // form /dev/ns* or ns*
3040 if (!strncmp(lin_dev_scsi_tape1
, dev_name
,
3041 strlen(lin_dev_scsi_tape1
)))
3042 return new linux_scsi_device(this, name
, "");
3044 // form /dev/os* or os*
3045 if (!strncmp(lin_dev_scsi_tape2
, dev_name
,
3046 strlen(lin_dev_scsi_tape2
)))
3047 return new linux_scsi_device(this, name
, "");
3049 // form /dev/nos* or nos*
3050 if (!strncmp(lin_dev_scsi_tape3
, dev_name
,
3051 strlen(lin_dev_scsi_tape3
)))
3052 return new linux_scsi_device(this, name
, "");
3055 if (!strncmp(lin_dev_3ware_9000_char
, dev_name
,
3056 strlen(lin_dev_3ware_9000_char
)))
3057 return missing_option("-d 3ware,N");
3060 if (!strncmp(lin_dev_3ware_678k_char
, dev_name
,
3061 strlen(lin_dev_3ware_678k_char
)))
3062 return missing_option("-d 3ware,N");
3065 if (!strncmp(lin_dev_cciss_dir
, dev_name
,
3066 strlen(lin_dev_cciss_dir
)))
3067 return missing_option("-d cciss,N");
3070 if ( !strncmp(lin_dev_areca
, dev_name
,
3071 strlen(lin_dev_areca
)) )
3072 return missing_option("-d areca,N");
3074 // we failed to recognize any of the forms
3078 smart_device
* linux_smart_interface::get_custom_smart_device(const char * name
, const char * type
)
3081 if (!strcmp(type
, "marvell"))
3082 return new linux_marvell_device(this, name
, type
);
3085 int disknum
= -1, n1
= -1, n2
= -1;
3086 if (sscanf(type
, "3ware,%n%d%n", &n1
, &disknum
, &n2
) == 1 || n1
== 6) {
3087 if (n2
!= (int)strlen(type
)) {
3088 set_err(EINVAL
, "Option -d 3ware,N requires N to be a non-negative integer");
3091 if (!(0 <= disknum
&& disknum
<= 127)) {
3092 set_err(EINVAL
, "Option -d 3ware,N (N=%d) must have 0 <= N <= 127", disknum
);
3096 if (!strncmp(name
, "/dev/twa", 8))
3097 return new linux_escalade_device(this, name
, linux_escalade_device::AMCC_3WARE_9000_CHAR
, disknum
);
3098 else if (!strncmp(name
, "/dev/twe", 8))
3099 return new linux_escalade_device(this, name
, linux_escalade_device::AMCC_3WARE_678K_CHAR
, disknum
);
3101 return new linux_escalade_device(this, name
, linux_escalade_device::AMCC_3WARE_678K
, disknum
);
3105 disknum
= n1
= n2
= -1;
3106 if (sscanf(type
, "areca,%n%d%n", &n1
, &disknum
, &n2
) == 1 || n1
== 6) {
3107 if (n2
!= (int)strlen(type
)) {
3108 set_err(EINVAL
, "Option -d areca,N requires N to be a non-negative integer");
3111 if (!(1 <= disknum
&& disknum
<= 24)) {
3112 set_err(EINVAL
, "Option -d areca,N (N=%d) must have 1 <= N <= 24", disknum
);
3115 return new linux_areca_device(this, name
, disknum
);
3119 int controller
= -1, channel
= -1; disknum
= 1;
3120 n1
= n2
= -1; int n3
= -1;
3121 if (sscanf(type
, "hpt,%n%d/%d%n/%d%n", &n1
, &controller
, &channel
, &n2
, &disknum
, &n3
) >= 2 || n1
== 4) {
3122 int len
= strlen(type
);
3123 if (!(n2
== len
|| n3
== len
)) {
3124 set_err(EINVAL
, "Option '-d hpt,L/M/N' supports 2-3 items");
3127 if (!(1 <= controller
&& controller
<= 8)) {
3128 set_err(EINVAL
, "Option '-d hpt,L/M/N' invalid controller id L supplied");
3131 if (!(1 <= channel
&& channel
<= 8)) {
3132 set_err(EINVAL
, "Option '-d hpt,L/M/N' invalid channel number M supplied");
3135 if (!(1 <= disknum
&& disknum
<= 15)) {
3136 set_err(EINVAL
, "Option '-d hpt,L/M/N' invalid pmport number N supplied");
3139 return new linux_highpoint_device(this, name
, controller
, channel
, disknum
);
3142 #ifdef HAVE_LINUX_CCISS_IOCTL_H
3144 disknum
= n1
= n2
= -1;
3145 if (sscanf(type
, "cciss,%n%d%n", &n1
, &disknum
, &n2
) == 1 || n1
== 6) {
3146 if (n2
!= (int)strlen(type
)) {
3147 set_err(EINVAL
, "Option -d cciss,N requires N to be a non-negative integer");
3150 if (!(0 <= disknum
&& disknum
<= 15)) {
3151 set_err(EINVAL
, "Option -d cciss,N (N=%d) must have 0 <= N <= 15", disknum
);
3154 return new linux_cciss_device(this, name
, disknum
);
3156 #endif // HAVE_LINUX_CCISS_IOCTL_H
3159 if (sscanf(type
, "megaraid,%d", &disknum
) == 1) {
3160 return new linux_megaraid_device(this, name
, 0, disknum
);
3165 std::string
linux_smart_interface::get_valid_custom_dev_types_str()
3167 return "marvell, areca,N, 3ware,N, hpt,L/M/N, megaraid,N"
3168 #ifdef HAVE_LINUX_CCISS_IOCTL_H
3177 /////////////////////////////////////////////////////////////////////////////
3178 /// Initialize platform interface and register with smi()
3180 void smart_interface::init()
3182 static os_linux::linux_smart_interface the_interface
;
3183 smart_interface::set(&the_interface
);