8 #if defined(linux) || defined(__linux__)
9 # include <sys/ioctl.h>
10 # ifdef HAVE_LINUX_COMPILER_H
11 # include <linux/compiler.h>
13 # if defined(HAVE_LINUX_CCISS_IOCTL_H)
14 # include <linux/cciss_ioctl.h>
17 # include <asm/byteorder.h>
19 # define be32toh __be32_to_cpu
21 #elif defined(__FreeBSD__)
22 # include <sys/endian.h>
23 # include CISS_LOCATION
25 #elif defined(__FreeBSD_kernel__)
28 # include <bsd/sys/cdefs.h>
31 # include CISS_LOCATION
41 const char * cciss_cpp_cvsid
= "$Id: cciss.cpp 4156 2015-10-18 12:20:40Z samm2 $"
44 typedef struct _ReportLUNdata_struct
46 uint32_t LUNListLength
; /* always big-endian */
48 uint8_t LUN
[CISS_MAX_LUN
][8];
49 } ReportLunData_struct
;
51 /* Structure/defines of Report Physical LUNS of drive */
53 #define CISS_MAX_LUN 16
55 #define CISS_MAX_PHYS_LUN 1024
56 #define CISS_REPORT_PHYS 0xc3
58 #define LSCSI_DRIVER_SENSE 0x8 /* alternate CHECK CONDITION indication */
59 #define SEND_IOCTL_RESP_SENSE_LEN 16 /* ioctl limitation */
61 static int cciss_getlun(int device
, int target
, unsigned char *physlun
, int report
);
62 static int cciss_sendpassthru(unsigned int cmdtype
, unsigned char *CDB
,
63 unsigned int CDBlen
, char *buff
,
64 unsigned int size
, unsigned int LunID
,
65 unsigned char *scsi3addr
, int fd
);
68 This is an interface that uses the cciss passthrough to talk to the SMART controller on
69 the HP system. The cciss driver provides a way to send SCSI cmds through the CCISS passthrough.
71 int cciss_io_interface(int device
, int target
, struct scsi_cmnd_io
* iop
, int report
)
73 unsigned char pBuf
[512] = {0};
74 unsigned char phylun
[8] = {0};
76 int len
= 0; // used later in the code.
78 int status
= cciss_getlun(device
, target
, phylun
, report
);
80 printf(" cciss_getlun(%d, %d) = 0x%x; scsi3addr: %02x %02x %02x %02x %02x %02x %02x %02x\n",
81 device
, target
, status
,
82 phylun
[0], phylun
[1], phylun
[2], phylun
[3], phylun
[4], phylun
[5], phylun
[6], phylun
[7]);
84 return -ENXIO
; /* give up, assume no device there */
87 status
= cciss_sendpassthru( 2, iop
->cmnd
, iop
->cmnd_len
, (char*) pBuf
, iBufLen
, 1, phylun
, device
);
92 printf(" status=0\n");
93 if (DXFER_FROM_DEVICE
== iop
->dxfer_dir
)
95 memcpy(iop
->dxferp
, pBuf
, iop
->dxfer_len
);
98 int trunc
= (iop
->dxfer_len
> 256) ? 1 : 0;
99 printf(" Incoming data, len=%d%s:\n", (int)iop
->dxfer_len
,
100 (trunc
? " [only first 256 bytes shown]" : ""));
101 dStrHex((const char*)iop
->dxferp
, (trunc
? 256 : iop
->dxfer_len
) , 1);
106 iop
->scsi_status
= status
& 0x7e; /* bits 0 and 7 used to be for vendors */
107 if (LSCSI_DRIVER_SENSE
== ((status
>> 24) & 0xf))
108 iop
->scsi_status
= SCSI_STATUS_CHECK_CONDITION
;
109 len
= (SEND_IOCTL_RESP_SENSE_LEN
< iop
->max_sense_len
) ?
110 SEND_IOCTL_RESP_SENSE_LEN
: iop
->max_sense_len
;
111 if ((SCSI_STATUS_CHECK_CONDITION
== iop
->scsi_status
) &&
112 iop
->sensep
&& (len
> 0))
114 memcpy(iop
->sensep
, pBuf
, len
);
115 iop
->resp_sense_len
= iBufLen
;
118 printf(" >>> Sense buffer, len=%d:\n", (int)len
);
119 dStrHex((const char *)pBuf
, len
, 1);
124 if (SCSI_STATUS_CHECK_CONDITION
== iop
->scsi_status
) {
125 printf(" status=%x: sense_key=%x asc=%x ascq=%x\n", status
& 0xff,
126 pBuf
[2] & 0xf, pBuf
[12], pBuf
[13]);
129 printf(" status=0x%x\n", status
);
131 if (iop
->scsi_status
> 0)
136 printf(" ioctl status=0x%x but scsi status=0, fail with ENXIO\n", status
);
137 return -ENXIO
; /* give up, assume no device there */
141 static int cciss_sendpassthru(unsigned int cmdtype
, unsigned char *CDB
,
142 unsigned int CDBlen
, char *buff
,
143 unsigned int size
, unsigned int LunID
,
144 unsigned char *scsi3addr
, int fd
)
147 IOCTL_Command_struct iocommand
;
149 memset(&iocommand
, 0, sizeof(iocommand
));
153 // To controller; nothing to do
155 else if (cmdtype
== 1)
157 iocommand
.LUN_info
.LogDev
.VolId
= LunID
;
158 iocommand
.LUN_info
.LogDev
.Mode
= 1;
160 else if (cmdtype
== 2)
162 memcpy(&iocommand
.LUN_info
.LunAddrBytes
,scsi3addr
,8);
163 iocommand
.LUN_info
.LogDev
.Mode
= 0;
167 fprintf(stderr
, "cciss_sendpassthru: bad cmdtype\n");
171 memcpy(&iocommand
.Request
.CDB
[0], CDB
, CDBlen
);
172 iocommand
.Request
.CDBLen
= CDBlen
;
173 iocommand
.Request
.Type
.Type
= TYPE_CMD
;
174 iocommand
.Request
.Type
.Attribute
= ATTR_SIMPLE
;
175 iocommand
.Request
.Type
.Direction
= XFER_READ
;
176 iocommand
.Request
.Timeout
= 0;
178 iocommand
.buf_size
= size
;
179 iocommand
.buf
= (unsigned char *)buff
;
181 if ((err
= ioctl(fd
, CCISS_PASSTHRU
, &iocommand
)))
183 fprintf(stderr
, "CCISS ioctl error %d (fd %d CDBLen %u buf_size %u)\n",
184 fd
, err
, CDBlen
, size
);
189 static int cciss_getlun(int device
, int target
, unsigned char *physlun
, int report
)
191 unsigned char CDB
[16]= {0};
192 ReportLunData_struct
*luns
;
193 int reportlunsize
= sizeof(*luns
) + CISS_MAX_PHYS_LUN
* 8;
196 luns
= (ReportLunData_struct
*)malloc(reportlunsize
);
198 memset(luns
, 0, reportlunsize
);
200 /* Get Physical LUN Info (for physical device) */
201 CDB
[0] = CISS_REPORT_PHYS
;
202 CDB
[6] = (reportlunsize
>> 24) & 0xFF; /* MSB */
203 CDB
[7] = (reportlunsize
>> 16) & 0xFF;
204 CDB
[8] = (reportlunsize
>> 8) & 0xFF;
205 CDB
[9] = reportlunsize
& 0xFF;
207 if ((ret
= cciss_sendpassthru(0, CDB
, 12, (char *)luns
, reportlunsize
, 0, NULL
, device
)))
216 unsigned char *stuff
= (unsigned char *)luns
;
218 pout("\n===== [%s] DATA START (BASE-16) =====\n", "LUN DATA");
219 for (i
=0; i
<(sizeof(_ReportLUNdata_struct
)+15)/16; i
++){
220 pout("%03d-%03d: ", 16*i
, 16*(i
+1)-1);
222 pout("%02x ",*stuff
++);
223 pout("%02x\n",*stuff
++);
225 pout("===== [%s] DATA END (%u Bytes) =====\n\n", "LUN DATA", (unsigned)sizeof(_ReportLUNdata_struct
));
228 if (target
>= 0 && target
< (int) be32toh(luns
->LUNListLength
) / 8)
230 memcpy(physlun
, luns
->LUN
[target
], 8);