2 * Copyright (c) 1997 by Simon Shapiro
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions, and the following disclaimer,
10 * without modification, immediately at the beginning of the file.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 * notice, this list of conditions and the following disclaimer in the
13 * documentation and/or other materials provided with the distribution.
14 * 3. The name of the author may not be used to endorse or promote products
15 * derived from this software without specific prior written permission.
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * dpt.h: Definitions and constants used by the SCSI side of the DPT
35 * credits: Mike Neuffer; DPT low level code and in other areas as well.
36 * Mark Salyzyn; Many vital bits of info and diagnostics.
37 * Justin Gibbs; FreeBSD API, debugging and style
38 * Ron McDaniels; SCSI Software Interrupts
39 * FreeBSD.ORG; Great O/S to work on and for.
48 #include <sys/ioccom.h>
50 #define DPT_CDEV_MAJOR 88
52 #undef DPT_USE_DLM_SWI
54 extern u_long dpt_unit;
61 #define DPT_YEAR 18 /* 1998 - 1980 */
63 #define DPT_CTL_RELEASE 1
64 #define DPT_CTL_VERSION 0
65 #define DPT_CTL_PATCH 6
72 typedef void *physaddr;
75 #undef DPT_INQUIRE_DEVICES /* We have no buyers for this function */
76 #define DPT_SUPPORT_POLLING /* Use polled mode at boot (must be ON!) */
77 #define DPT_OPENNINGS 8 /* Commands-in-progress per device */
79 #define DPT_RETRIES 5 /* Times to retry failed commands */
83 /* Arguments to dpt_run_queue() can be: */
85 #define DPT_MAX_TARGET_MODE_BUFFER_SIZE 8192
86 #define DPT_FREE_LIST_INCREMENT 64
87 #define DPT_CMD_LEN 12
90 * How many segments do we want in a Scatter/Gather list?
91 * Some HBA's can do 16, Some 8192. Since we pre-allocate
92 * them in fixed increments, we need to put a practical limit on
93 * these. A passed parameter (from kernel boot or lkm) would help
95 #define DPT_MAX_SEGS 32
100 #undef DPT_DEBUG_INIT
101 #undef DPT_DEBUG_SETUP
102 #undef DPT_DEBUG_STATES
103 #undef DPT_DEBUG_CONFIG
104 #undef DPT_DEBUG_QUEUES
105 #undef DPT_DEBUG_SCSI_CMD
106 #undef DPT_DEBUG_SOFTINTR
107 #undef DPT_DEBUG_HARDINTR
108 #undef DPT_DEBUG_HEX_DUMPS
109 #undef DPT_DEBUG_POLLING
110 #undef DPT_DEBUG_INQUIRE
111 #undef DPT_DEBUG_COMPLETION
112 #undef DPT_DEBUG_COMPLETION_ERRORS
113 #define DPT_DEBUG_MINPHYS
115 #undef DPT_DEBUG_SG_SHOW_DATA
116 #undef DPT_DEBUG_SCSI_CMD_NAME
117 #undef DPT_DEBUG_CONTROL
118 #undef DPT_DEBUG_TIMEOUTS
119 #undef DPT_DEBUG_SHUTDOWN
120 #define DPT_DEBUG_USER_CMD
130 #define MAX_CHANNELS 3
131 #define MAX_TARGETS 16
134 /* Map minor numbers to device identity */
135 #define TARGET_MASK 0x000f
136 #define BUS_MASK 0x0030
137 #define HBA_MASK 0x01c0
138 #define LUN_MASK 0x0e00
140 #define minor2target(minor) ( minor & TARGET_MASK )
141 #define minor2bus(minor) ( (minor & BUS_MASK) >> 4 )
142 #define minor2hba(minor) ( (minor & HBA_MASK) >> 6 )
143 #define minor2lun(minor) ( (minor & LUN_MASK) >> 9 )
146 * Valid values for cache_type
148 #define DPT_NO_CACHE 0
149 #define DPT_CACHE_WRITETHROUGH 1
150 #define DPT_CACHE_WRITEBACK -2
152 #define min(a,b) ((a<b)?(a):(b))
164 #define BROKEN_INQUIRY 1
166 #define BUSMASTER 0xff
169 #define EATA_SIGNATURE 0x41544145 /* little ENDIAN "EATA" */
170 #define DPT_BLINK_INDICATOR 0x42445054
182 #define MAX_PCI_DEVICES 32 /* Maximum # Of Devices Per Bus */
183 #define MAX_METHOD_2 16 /* Max Devices For Method 2 */
184 #define MAX_PCI_BUS 16 /* Maximum # Of Busses Allowed */
186 #define DPT_MAX_RETRIES 2
192 #define HD(cmd) ((hostdata *)&(cmd->host->hostdata))
193 #define CD(cmd) ((struct eata_ccb *)(cmd->host_scribble))
194 #define SD(host) ((hostdata *)&(host->hostdata))
197 * EATA Command & Register definitions
200 #define PCI_REG_DPTconfig 0x40
201 #define PCI_REG_PumpModeAddress 0x44
202 #define PCI_REG_PumpModeData 0x48
203 #define PCI_REG_ConfigParam1 0x50
204 #define PCI_REG_ConfigParam2 0x54
206 #define EATA_CMD_PIO_SETUPTEST 0xc6
207 #define EATA_CMD_PIO_READ_CONFIG 0xf0
208 #define EATA_CMD_PIO_SET_CONFIG 0xf1
209 #define EATA_CMD_PIO_SEND_CP 0xf2
210 #define EATA_CMD_PIO_RECEIVE_SP 0xf3
211 #define EATA_CMD_PIO_TRUNC 0xf4
213 #define EATA_CMD_RESET 0xf9
214 #define EATA_COLD_BOOT 0x06 /* Last resort only! */
216 #define EATA_CMD_IMMEDIATE 0xfa
218 #define EATA_CMD_DMA_READ_CONFIG 0xfd
219 #define EATA_CMD_DMA_SET_CONFIG 0xfe
220 #define EATA_CMD_DMA_SEND_CP 0xff
222 #define ECS_EMULATE_SENSE 0xd4
226 * Beware of this enumeration. Not all commands are in sequence!
229 enum dpt_immediate_cmd {
235 EATA_SMART_ROM_DL_EN,
236 EATA_COLD_BOOT_HBA, /* Only as a last resort */
238 EATA_SCSI_BUS_OFFLINE,
239 EATA_RESET_MASKED_BUS,
243 #define HA_CTRLREG 0x206 /* control register for HBA */
244 #define HA_CTRL_DISINT 0x02 /* CTRLREG: disable interrupts */
245 #define HA_CTRL_RESCPU 0x04 /* CTRLREG: reset processo */
246 #define HA_CTRL_8HEADS 0x08 /*
247 * CTRLREG: set for drives with
249 * (WD1003 rudimentary :-)
252 #define HA_WCOMMAND 0x07 /* command register offset */
253 #define HA_WIFC 0x06 /* immediate command offset */
254 #define HA_WCODE 0x05
255 #define HA_WCODE2 0x04
256 #define HA_WDMAADDR 0x02 /* DMA address LSB offset */
257 #define HA_RERROR 0x01 /* Error Register, offset 1 from base */
258 #define HA_RAUXSTAT 0x08 /* aux status register offset */
259 #define HA_RSTATUS 0x07 /* status register offset */
260 #define HA_RDATA 0x00 /* data register (16bit) */
261 #define HA_WDATA 0x00 /* data register (16bit) */
263 #define HA_ABUSY 0x01 /* aux busy bit */
264 #define HA_AIRQ 0x02 /* aux IRQ pending bit */
265 #define HA_SERROR 0x01 /* pr. command ended in error */
266 #define HA_SMORE 0x02 /* more data soon to come */
267 #define HA_SCORR 0x04 /* datio_addra corrected */
268 #define HA_SDRQ 0x08 /* data request active */
269 #define HA_SSC 0x10 /* seek complete */
270 #define HA_SFAULT 0x20 /* write fault */
271 #define HA_SREADY 0x40 /* drive ready */
272 #define HA_SBUSY 0x80 /* drive busy */
273 #define HA_SDRDY (HA_SSC|HA_SREADY|HA_SDRQ)
276 * Message definitions
280 HA_NO_ERROR, /* No Error */
281 HA_ERR_SEL_TO, /* Selection Timeout */
282 HA_ERR_CMD_TO, /* Command Timeout */
284 HA_HBA_POWER_UP, /* Initial Controller Power-up */
285 HA_UNX_BUSPHASE, /* Unexpected Bus Phase */
286 HA_UNX_BUS_FREE, /* Unexpected Bus Free */
287 HA_BUS_PARITY, /* Bus Parity Error */
288 HA_SCSI_HUNG, /* SCSI Hung */
289 HA_UNX_MSGRJCT, /* Unexpected Message Rejected */
290 HA_RESET_STUCK, /* SCSI Bus Reset Stuck */
291 HA_RSENSE_FAIL, /* Auto Request-Sense Failed */
292 HA_PARITY_ERR, /* Controller Ram Parity Error */
293 HA_CP_ABORT_NA, /* Abort Message sent to non-active cmd */
294 HA_CP_ABORTED, /* Abort Message sent to active cmd */
295 HA_CP_RESET_NA, /* Reset Message sent to non-active cmd */
296 HA_CP_RESET, /* Reset Message sent to active cmd */
297 HA_ECC_ERR, /* Controller Ram ECC Error */
298 HA_PCI_PARITY, /* PCI Parity Error */
299 HA_PCI_MABORT, /* PCI Master Abort */
300 HA_PCI_TABORT, /* PCI Target Abort */
301 HA_PCI_STABORT /* PCI Signaled Target Abort */
304 #define HA_STATUS_MASK 0x7F
305 #define HA_IDENTIFY_MSG 0x80
306 #define HA_DISCO_RECO 0x40 /* Disconnect/Reconnect */
308 #define DPT_RW_BUFF_HEART 0X00
309 #define DPT_RW_BUFF_DLM 0x02
310 #define DPT_RW_BUFF_ACCESS 0x03
312 #define HA_INTR_OFF 1
315 /* This is really a one-time shot through some black magic */
316 #define DPT_EATA_REVA 0x1c
317 #define DPT_EATA_REVB 0x1e
318 #define DPT_EATA_REVC 0x22
319 #define DPT_EATA_REVZ 0x24
324 #define DPT_RW_CMD_LEN 32
325 #define DPT_RW_CMD_DUMP_SOFTC "dump softc"
326 #define DPT_RW_CMD_DUMP_SYSINFO "dump sysinfo"
327 #define DPT_RW_CMD_DUMP_METRICS "dump metrics"
328 #define DPT_RW_CMD_CLEAR_METRICS "clear metrics"
329 #define DPT_RW_CMD_SHOW_LED "show LED"
331 #define DPT_IOCTL_INTERNAL_METRICS _IOR('D', 1, dpt_perf_t)
332 #define DPT_IOCTL_SOFTC _IOR('D', 2, dpt_user_softc_t)
333 #define DPT_IOCTL_SEND _IOWR('D', 3, eata_pt_t)
334 #define SDI_SEND 0x40044444 /* Observed from dptmgr */
340 #define DPT_HCP_LENGTH(page) (ntohs(*(int16_t *)(void *)(&page[2]))+4)
341 #define DPT_HCP_FIRST(page) (&page[4])
342 #define DPT_HCP_NEXT(param) (¶m[3 + param[3] + 1])
343 #define DPT_HCP_CODE(param) (ntohs(*(int16_t *)(void *)param))
346 /* Possible return values from dpt_register_buffer() */
348 #define SCSI_TM_READ_BUFFER 0x3c
349 #define SCSI_TM_WRITE_BUFFER 0x3b
351 #define SCSI_TM_MODE_MASK 0x07 /* Strip off reserved and LUN */
352 #define SCSI_TM_LUN_MASK 0xe0 /* Strip off reserved and LUN */
355 SUCCESSFULLY_REGISTERED,
358 REGISTERED_TO_ANOTHER,
372 * New way for completion routines to reliably copmplete processing.
373 * Should take properly typed dpt_softc_t and dpt_ccb_t,
374 * but interdependencies preclude that.
376 typedef void (*ccb_callback)(void *dpt, int bus, void *ccb);
378 typedef void (*buff_wr_done)(int unit, u_int8_t channel, u_int8_t target,
379 u_int8_t lun, u_int16_t offset, u_int16_t length,
382 typedef void (*dpt_rec_buff)(int unit, u_int8_t channel, u_int8_t target,
383 u_int8_t lun, void *buffer, u_int16_t offset,
386 /* HBA's Status port (register) bitmap */
387 typedef struct reg_bit { /* reading this one will clear the interrupt */
388 u_int8_t error :1, /* previous command ended in an error */
389 more :1, /* More DATA coming soon Poll BSY & DRQ (PIO) */
390 corr :1, /* data read was successfully corrected with ECC */
391 drq :1, /* data request active */
392 sc :1, /* seek complete */
393 fault :1, /* write fault */
394 ready :1, /* drive ready */
395 busy :1; /* controller busy */
398 /* HBA's Auxiliary status port (register) bitmap */
399 typedef struct reg_abit { /* reading this won't clear the interrupt */
400 u_int8_t abusy :1, /* auxiliary busy */
401 irq :1, /* set when drive interrupt is asserted */
405 /* The EATA Register Set as a structure */
406 typedef struct eata_register {
407 u_int8_t data_reg[2]; /* R, couldn't figure this one out */
408 u_int8_t cp_addr[4]; /* W, CP address register */
412 * [read|set] conf, send CP
414 struct reg_bit status; /* R, see register_bit1 */
417 struct reg_abit aux_stat; /* R, see register_bit2 */
421 * Holds the results of a READ_CONFIGURATION command
422 * Beware of data items which are larger than 1 byte.
423 * these come from the DPT in network order.
424 * On an Intel ``CPU'' they will be upside down and backwards!
425 * The dpt_get_conf function is normally responsible for flipping
428 typedef struct get_conf { /* Read Configuration Array */
431 u_int8_t foo_DevType;
432 u_int8_t foo_PageCode;
433 u_int8_t foo_Reserved0;
436 u_int32_t foo_length; /* Should return 0x22, 0x24, etc */
438 #define gcs_length bar.foo_length
439 #define gcs_PageCode bar.foo.foo_DevType
440 #define gcs_reserved0 bar.foo.foo_Reserved0
441 #define gcs_len bar.foo.foo_len
443 u_int32_t signature; /* Signature MUST be "EATA". ntohl()`ed */
445 u_int8_t version2 :4,
446 version :4; /* EATA Version level */
448 u_int8_t OCS_enabled :1, /* Overlap Command Support enabled */
449 TAR_support :1, /* SCSI Target Mode supported */
450 TRNXFR :1, /* Truncate Transfer Cmd Used in PIO Mode */
451 MORE_support:1, /* MORE supported (PIO Mode Only) */
452 DMA_support :1, /* DMA supported */
453 DMA_valid :1, /* DRQ value in Byte 30 is valid */
454 ATA :1, /* ATA device connected (not supported) */
455 HAA_valid :1; /* Hostadapter Address is valid */
457 u_int16_t cppadlen; /*
458 * Number of pad bytes send after CD data set
459 * to zero for DMA commands. Ntohl()`ed
461 u_int8_t scsi_idS; /* SCSI ID of controller 2-0 Byte 0 res. */
462 u_int8_t scsi_id2; /* If not, zero is returned */
465 u_int32_t cplen; /* CP length: number of valid cp bytes */
467 u_int32_t splen; /* Returned bytes for a received SP command */
468 u_int16_t queuesiz; /* max number of queueable CPs */
471 u_int16_t SGsiz; /* max number of SG table entrie */
473 u_int8_t IRQ :4,/* IRQ used this HBA */
474 IRQ_TR :1,/* IRQ Trigger: 0=edge, 1=level */
475 SECOND :1,/* This is a secondary controller */
476 DMA_channel:2;/* DRQ index, DRQ is 2comp of DRQX */
478 u_int8_t sync; /* 0-7 sync active bitmask (deprecated) */
479 u_int8_t DSBLE :1, /* ISA i/o addressing is disabled */
480 FORCADR :1, /* i/o address has been forced */
485 u_int8_t MAX_ID :5, /* Max number of SCSI target IDs */
486 MAX_CHAN :3; /* Number of SCSI busses on HBA */
488 u_int8_t MAX_LUN; /* Max number of LUNs */
492 ID_qest :1, /* Raidnum ID is questionable */
493 is_PCI :1, /* HBA is PCI */
494 is_EISA :1; /* HBA is EISA */
496 u_int8_t RAIDNUM; /* unique HBA identifier */
497 u_int8_t unused[4]; /* When doing PIO, you GET 512 bytes */
499 /* >>------>> End of The DPT structure <<------<< */
501 u_int32_t length; /* True length, after ntohl conversion */
504 /* Scatter-Gather list entry */
505 typedef struct dpt_sg_segment {
506 u_int32_t seg_addr; /* All fields in network byte order */
512 typedef struct eata_sp {
513 u_int8_t hba_stat :7, /* HBA status */
514 EOC :1; /* True if command finished */
516 u_int8_t scsi_stat; /* Target SCSI status */
518 u_int8_t reserved[2];
520 u_int32_t residue_len; /* Number of bytes not transferred */
522 u_int32_t ccb_busaddr;
524 u_int8_t sp_ID_Message;
525 u_int8_t sp_Que_Message;
526 u_int8_t sp_Tag_Message;
531 * A strange collection of O/S-Hardware releated bits and pieces.
532 * Used by the dpt_ioctl() entry point to return DPT_SYSINFO command.
534 typedef struct dpt_drive_parameters {
535 u_int16_t cylinders; /* Up to 1024 */
536 u_int8_t heads; /* Up to 255 */
537 u_int8_t sectors; /* Up to 63 */
540 typedef struct driveParam_S driveParam_T;
542 #define SI_CMOS_Valid 0x0001
543 #define SI_NumDrivesValid 0x0002
544 #define SI_ProcessorValid 0x0004
545 #define SI_MemorySizeValid 0x0008
546 #define SI_DriveParamsValid 0x0010
547 #define SI_SmartROMverValid 0x0020
548 #define SI_OSversionValid 0x0040
549 #define SI_OSspecificValid 0x0080
550 #define SI_BusTypeValid 0x0100
552 #define SI_ALL_VALID 0x0FFF
553 #define SI_NO_SmartROM 0x8000
555 #define SI_ISA_BUS 0x00
556 #define SI_MCA_BUS 0x01
557 #define SI_EISA_BUS 0x02
558 #define SI_PCI_BUS 0x04
560 #define HBA_BUS_ISA 0x00
561 #define HBA_BUS_EISA 0x01
562 #define HBA_BUS_PCI 0x02
564 typedef struct dpt_sysinfo {
565 u_int8_t drive0CMOS; /* CMOS Drive 0 Type */
566 u_int8_t drive1CMOS; /* CMOS Drive 1 Type */
567 u_int8_t numDrives; /* 0040:0075 contents */
568 u_int8_t processorFamily; /* Same as DPTSIG definition */
569 u_int8_t processorType; /* Same as DPTSIG definition */
570 u_int8_t smartROMMajorVersion;
571 u_int8_t smartROMMinorVersion; /* SmartROM version */
572 u_int8_t smartROMRevision;
573 u_int16_t flags; /* See bit definitions above */
574 u_int16_t conventionalMemSize; /* in KB */
575 u_int32_t extendedMemSize; /* in KB */
576 u_int32_t osType; /* Same as DPTSIG definition */
577 u_int8_t osMajorVersion;
578 u_int8_t osMinorVersion; /* The OS version */
580 u_int8_t osSubRevision;
581 u_int8_t busType; /* See defininitions above */
582 u_int8_t pad[3]; /* For alignment */
583 dpt_drive_t drives[16]; /* SmartROM Logical Drives */
586 /* SEND_COMMAND packet structure */
587 typedef struct eata_ccb {
588 u_int8_t SCSI_Reset :1, /* Cause a SCSI Bus reset on the cmd */
589 HBA_Init :1, /* Cause Controller to reinitialize */
590 Auto_Req_Sen :1, /* Do Auto Request Sense on errors */
591 scatter :1, /* Data Ptr points to a SG Packet */
592 Quick :1, /* Set this one for NO Status PAcket */
593 Interpret :1, /* Interpret the SCSI cdb for own use */
594 DataOut :1, /* Data Out phase with command */
595 DataIn :1; /* Data In phase with command */
597 u_int8_t reqlen; /* Request Sense Length, if Auto_Req_Sen=1 */
599 u_int8_t FWNEST :1, /* send cmd to phys RAID component */
602 u_int8_t Phsunit :1, /* physical unit on mirrored pair */
603 I_AT :1, /* inhibit address translation */
604 Disable_Cache :1, /* HBA inhibit caching */
607 u_int8_t cp_id :5, /* SCSI Device ID of target */
608 cp_channel :3; /* SCSI Channel # of HBA */
611 cp_luntar :1, /* CP is for target ROUTINE */
612 cp_dispri :1, /* Grant disconnect privilege */
613 cp_identify :1; /* Always TRUE */
615 u_int8_t cp_msg[3]; /* Message bytes 0-3 */
619 u_int8_t x_scsi_cmd; /* Partial SCSI CDB def */
621 u_int8_t x_extent :1,
633 u_int8_t reserved5 :4;
634 u_int8_t x_vendor :2;
636 u_int8_t z[12]; /* Command Descriptor Block (= 12) */
639 #define cp_cdb cp_w.z
640 #define cp_scsi_cmd cp_w.x.x_scsi_cmd
641 #define cp_extent cp_w.x.x_extent
642 #define cp_lun cp_w.x.x_lun
643 #define cp_page cp_w.x.x_page
644 #define cp_len cp_w.x.x_len
646 #define MULTIFUNCTION_CMD 0x0e /* SCSI Multi Function Cmd */
647 #define BUS_QUIET 0x04 /* Quite Scsi Bus Code */
648 #define BUS_UNQUIET 0x05 /* Un Quiet Scsi Bus Code */
650 u_int32_t cp_datalen; /*
651 * Data Transfer Length. If scatter=1 len (IN
652 * BYTES!) of the S/G array
655 u_int32_t cp_busaddr; /* Unique identifier. Busaddr works well */
656 u_int32_t cp_dataDMA; /*
657 * Data Address, if scatter=1 then it is the
658 * address of scatter packet
660 u_int32_t cp_statDMA; /* address for Status Packet */
661 u_int32_t cp_reqDMA; /*
662 * Request Sense Address, used if CP command
670 * DPT Signature Structure.
671 * Used by /dev/dpt to directly pass commands to the HBA
672 * We have more information here than we care for...
675 /* Current Signature Version - sigBYTE dsSigVersion; */
676 #define SIG_VERSION 1
679 * Processor Family - sigBYTE dsProcessorFamily; DISTINCT VALUE
681 * What type of processor the file is meant to run on.
682 * This will let us know whether to read sigWORDs as high/low or low/high.
684 #define PROC_INTEL 0x00 /* Intel 80x86 */
685 #define PROC_MOTOROLA 0x01 /* Motorola 68K */
686 #define PROC_MIPS4000 0x02 /* MIPS RISC 4000 */
687 #define PROC_ALPHA 0x03 /* DEC Alpha */
690 * Specific Minimim Processor - sigBYTE dsProcessor; FLAG BITS
692 * Different bit definitions dependent on processor_family
696 #define PROC_8086 0x01 /* Intel 8086 */
697 #define PROC_286 0x02 /* Intel 80286 */
698 #define PROC_386 0x04 /* Intel 80386 */
699 #define PROC_486 0x08 /* Intel 80486 */
700 #define PROC_PENTIUM 0x10 /* Intel 586 aka P5 aka Pentium */
701 #define PROC_P6 0x20 /* Intel 686 aka P6 */
704 #define PROC_68000 0x01 /* Motorola 68000 */
705 #define PROC_68020 0x02 /* Motorola 68020 */
706 #define PROC_68030 0x04 /* Motorola 68030 */
707 #define PROC_68040 0x08 /* Motorola 68040 */
709 /* Filetype - sigBYTE dsFiletype; DISTINCT VALUES */
710 #define FT_EXECUTABLE 0 /* Executable Program */
711 #define FT_SCRIPT 1 /* Script/Batch File??? */
712 #define FT_HBADRVR 2 /* HBA Driver */
713 #define FT_OTHERDRVR 3 /* Other Driver */
714 #define FT_IFS 4 /* Installable Filesystem Driver */
715 #define FT_ENGINE 5 /* DPT Engine */
716 #define FT_COMPDRVR 6 /* Compressed Driver Disk */
717 #define FT_LANGUAGE 7 /* Foreign Language file */
718 #define FT_FIRMWARE 8 /* Downloadable or actual Firmware */
719 #define FT_COMMMODL 9 /* Communications Module */
720 #define FT_INT13 10 /* INT 13 style HBA Driver */
721 #define FT_HELPFILE 11 /* Help file */
722 #define FT_LOGGER 12 /* Event Logger */
723 #define FT_INSTALL 13 /* An Install Program */
724 #define FT_LIBRARY 14 /* Storage Manager Real-Mode Calls */
725 #define FT_RESOURCE 15 /* Storage Manager Resource File */
726 #define FT_MODEM_DB 16 /* Storage Manager Modem Database */
728 /* Filetype flags - sigBYTE dsFiletypeFlags; FLAG BITS */
729 #define FTF_DLL 0x01 /* Dynamic Link Library */
730 #define FTF_NLM 0x02 /* Netware Loadable Module */
731 #define FTF_OVERLAYS 0x04 /* Uses overlays */
732 #define FTF_DEBUG 0x08 /* Debug version */
733 #define FTF_TSR 0x10 /* TSR */
734 #define FTF_SYS 0x20 /* DOS Lodable driver */
735 #define FTF_PROTECTED 0x40 /* Runs in protected mode */
736 #define FTF_APP_SPEC 0x80 /* Application Specific */
738 /* OEM - sigBYTE dsOEM; DISTINCT VALUES */
739 #define OEM_DPT 0 /* DPT */
740 #define OEM_ATT 1 /* ATT */
741 #define OEM_NEC 2 /* NEC */
742 #define OEM_ALPHA 3 /* Alphatronix */
743 #define OEM_AST 4 /* AST */
744 #define OEM_OLIVETTI 5 /* Olivetti */
745 #define OEM_SNI 6 /* Siemens/Nixdorf */
747 /* Operating System - sigLONG dsOS; FLAG BITS */
748 #define OS_DOS 0x00000001 /* PC/MS-DOS */
749 #define OS_WINDOWS 0x00000002 /* Microsoft Windows 3.x */
750 #define OS_WINDOWS_NT 0x00000004 /* Microsoft Windows NT */
751 #define OS_OS2M 0x00000008 /* OS/2 1.2.x,MS 1.3.0,IBM 1.3.x */
752 #define OS_OS2L 0x00000010 /* Microsoft OS/2 1.301 - LADDR */
753 #define OS_OS22x 0x00000020 /* IBM OS/2 2.x */
754 #define OS_NW286 0x00000040 /* Novell NetWare 286 */
755 #define OS_NW386 0x00000080 /* Novell NetWare 386 */
756 #define OS_GEN_UNIX 0x00000100 /* Generic Unix */
757 #define OS_SCO_UNIX 0x00000200 /* SCO Unix */
758 #define OS_ATT_UNIX 0x00000400 /* ATT Unix */
759 #define OS_UNIXWARE 0x00000800 /* UnixWare Unix */
760 #define OS_INT_UNIX 0x00001000 /* Interactive Unix */
761 #define OS_SOLARIS 0x00002000 /* SunSoft Solaris */
762 #define OS_QN 0x00004000 /* QNX for Tom Moch */
763 #define OS_NEXTSTEP 0x00008000 /* NeXTSTEP */
764 #define OS_BANYAN 0x00010000 /* Banyan Vines */
765 #define OS_OLIVETTI_UNIX 0x00020000 /* Olivetti Unix */
766 #define OS_FREEBSD 0x00040000 /* FreeBSD 2.2 and later */
767 #define OS_OTHER 0x80000000 /* Other */
769 /* Capabilities - sigWORD dsCapabilities; FLAG BITS */
770 #define CAP_RAID0 0x0001 /* RAID-0 */
771 #define CAP_RAID1 0x0002 /* RAID-1 */
772 #define CAP_RAID3 0x0004 /* RAID-3 */
773 #define CAP_RAID5 0x0008 /* RAID-5 */
774 #define CAP_SPAN 0x0010 /* Spanning */
775 #define CAP_PASS 0x0020 /* Provides passthrough */
776 #define CAP_OVERLAP 0x0040 /* Passthrough supports overlapped commands */
777 #define CAP_ASPI 0x0080 /* Supports ASPI Command Requests */
778 #define CAP_ABOVE16MB 0x0100 /* ISA Driver supports greater than 16MB */
779 #define CAP_EXTEND 0x8000 /* Extended info appears after description */
781 /* Devices Supported - sigWORD dsDeviceSupp; FLAG BITS */
782 #define DEV_DASD 0x0001 /* DASD (hard drives) */
783 #define DEV_TAPE 0x0002 /* Tape drives */
784 #define DEV_PRINTER 0x0004 /* Printers */
785 #define DEV_PROC 0x0008 /* Processors */
786 #define DEV_WORM 0x0010 /* WORM drives */
787 #define DEV_CDROM 0x0020 /* CD-ROM drives */
788 #define DEV_SCANNER 0x0040 /* Scanners */
789 #define DEV_OPTICAL 0x0080 /* Optical Drives */
790 #define DEV_JUKEBOX 0x0100 /* Jukebox */
791 #define DEV_COMM 0x0200 /* Communications Devices */
792 #define DEV_OTHER 0x0400 /* Other Devices */
793 #define DEV_ALL 0xFFFF /* All SCSI Devices */
795 /* Adapters Families Supported - sigWORD dsAdapterSupp; FLAG BITS */
796 #define ADF_2001 0x0001 /* PM2001 */
797 #define ADF_2012A 0x0002 /* PM2012A */
798 #define ADF_PLUS_ISA 0x0004 /* PM2011,PM2021 */
799 #define ADF_PLUS_EISA 0x0008 /* PM2012B,PM2022 */
800 #define ADF_SC3_ISA 0x0010 /* PM2021 */
801 #define ADF_SC3_EISA 0x0020 /* PM2022,PM2122, etc */
802 #define ADF_SC3_PCI 0x0040 /* SmartCache III PCI */
803 #define ADF_SC4_ISA 0x0080 /* SmartCache IV ISA */
804 #define ADF_SC4_EISA 0x0100 /* SmartCache IV EISA */
805 #define ADF_SC4_PCI 0x0200 /* SmartCache IV PCI */
806 #define ADF_ALL_MASTER 0xFFFE /* All bus mastering */
807 #define ADF_ALL_CACHE 0xFFFC /* All caching */
808 #define ADF_ALL 0xFFFF /* ALL DPT adapters */
810 /* Application - sigWORD dsApplication; FLAG BITS */
811 #define APP_DPTMGR 0x0001 /* DPT Storage Manager */
812 #define APP_ENGINE 0x0002 /* DPT Engine */
813 #define APP_SYTOS 0x0004 /* Sytron Sytos Plus */
814 #define APP_CHEYENNE 0x0008 /* Cheyenne ARCServe + ARCSolo */
815 #define APP_MSCDEX 0x0010 /* Microsoft CD-ROM extensions */
816 #define APP_NOVABACK 0x0020 /* NovaStor Novaback */
817 #define APP_AIM 0x0040 /* Archive Information Manager */
819 /* Requirements - sigBYTE dsRequirements; FLAG BITS */
820 #define REQ_SMARTROM 0x01 /* Requires SmartROM to be present */
821 #define REQ_DPTDDL 0x02 /* Requires DPTDDL.SYS to be loaded */
822 #define REQ_HBA_DRIVER 0x04 /* Requires an HBA driver to be loaded */
823 #define REQ_ASPI_TRAN 0x08 /* Requires an ASPI Transport Modules */
824 #define REQ_ENGINE 0x10 /* Requires a DPT Engine to be loaded */
825 #define REQ_COMM_ENG 0x20 /* Requires a DPT Communications Engine */
827 typedef struct dpt_sig {
828 char dsSignature[6]; /* ALWAYS "dPtSiG" */
829 u_int8_t SigVersion; /* signature version (currently 1) */
830 u_int8_t ProcessorFamily; /* what type of processor */
831 u_int8_t Processor; /* precise processor */
832 u_int8_t Filetype; /* type of file */
833 u_int8_t FiletypeFlags; /* flags to specify load type, etc. */
834 u_int8_t OEM; /* OEM file was created for */
835 u_int32_t OS; /* which Operating systems */
836 u_int16_t Capabilities; /* RAID levels, etc. */
837 u_int16_t DeviceSupp; /* Types of SCSI devices supported */
838 u_int16_t AdapterSupp; /* DPT adapter families supported */
839 u_int16_t Application; /* applications file is for */
840 u_int8_t Requirements; /* Other driver dependencies */
841 u_int8_t Version; /* 1 */
842 u_int8_t Revision; /* 'J' */
843 u_int8_t SubRevision; /* '9', ' ' if N/A */
844 u_int8_t Month; /* creation month */
845 u_int8_t Day; /* creation day */
846 u_int8_t Year; /* creation year since 1980 */
847 char *Description; /* description (NULL terminated) */
850 /* 32 bytes minimum - with no description. Put NULL at description[0] */
851 /* 81 bytes maximum - with 49 character description plus NULL. */
853 /* This line added at Roycroft's request */
854 /* Microsoft's NT compiler gets confused if you do a pack and don't */
856 typedef struct eata_pass_through {
860 #define EATAUSRCMD (('D'<<8)|65) /* EATA PassThrough Command */
861 #define DPT_SIGNATURE (('D'<<8)|67) /* Get Signature Structure */
862 #define DPT_NUMCTRLS (('D'<<8)|68) /* Get Number Of DPT Adapters */
863 #define DPT_CTRLINFO (('D'<<8)|69) /* Get Adapter Info Structure */
864 #define DPT_SYSINFO (('D'<<8)|72) /* Get System Info Structure */
865 #define DPT_BLINKLED (('D'<<8)|75) /* Get The BlinkLED Status */
867 u_int8_t *command_buffer;
868 eata_ccb_t command_packet;
870 u_int8_t host_status;
871 u_int8_t target_status;
878 DCCB_RELEASE_SIMQ = 0x02
881 typedef struct dpt_ccb {
885 u_int32_t sg_busaddr;
888 struct scsi_sense_data sense_data;
891 u_int8_t status; /* status of this queueslot */
892 u_int8_t *cmd; /* address of cmd */
894 u_int32_t transaction_id;
897 SLIST_ENTRY(dpt_ccb) links;
899 #ifdef DPT_MEASURE_PERFORMANCE
900 u_int32_t submitted_time;
901 struct timeval command_started;
902 struct timeval command_ended;
907 * This is provided for compatibility with UnixWare only.
908 * Some of the fields may be bogus.
909 * Others may have a totally different meaning.
911 typedef struct dpt_scsi_ha {
912 u_int32_t ha_state; /* Operational state */
913 u_int8_t ha_id[MAX_CHANNELS]; /* Host adapter SCSI ids */
914 int32_t ha_base; /* Base I/O address */
915 int ha_max_jobs; /* Max number of Active Jobs */
916 int ha_cache:2; /* Cache parameters */
917 int ha_cachesize:30; /* In meg, only if cache present*/
918 int ha_nbus; /* Number Of Busses on HBA */
919 int ha_ntargets; /* Number Of Targets Supported */
920 int ha_nluns; /* Number Of LUNs Supported */
921 int ha_tshift; /* Shift value for target */
922 int ha_bshift; /* Shift value for bus */
923 int ha_npend; /* # of jobs sent to HBA */
924 int ha_active_jobs; /* Number Of Active Jobs */
925 char ha_fw_version[4]; /* Firmware Revision Level */
926 void *ha_ccb; /* Controller command blocks */
927 void *ha_cblist; /* Command block free list */
928 void *ha_dev; /* Logical unit queues */
929 void *ha_StPkt_lock; /* Status Packet Lock */
930 void *ha_ccb_lock; /* CCB Lock */
931 void *ha_LuQWaiting; /* Lu Queue Waiting List */
932 void *ha_QWait_lock; /* Device Que Waiting Lock */
933 int ha_QWait_opri; /* Saved Priority Level */
934 #ifdef DPT_TARGET_MODE
935 dpt_ccb_t *target_ccb[MAX_CHANNELS]; /* Command block waiting writebuf */
940 * Describe the Inquiry Data returned on Page 0 from the Adapter. The
941 * Page C1 Inquiry Data is described in the DptConfig_t structure above.
946 u_int8_t otherData[6];
948 u_int8_t modelNum[16];
949 u_int8_t firmware[4];
950 u_int8_t protocol[4];
954 * sp_EOC is not `safe', so I will check sp_Messages[0] instead!
956 #define DptStat_BUSY(x) ((x)->sp_ID_Message)
957 #define DptStat_Reset_BUSY(x) \
958 ((x)->msg[0] = 0xA5, (x)->EOC = 0, \
959 (x)->ccb_busaddr = ~0)
961 #ifdef DPT_MEASURE_PERFORMANCE
962 #define BIG_ENOUGH 0x8fffffff
963 typedef struct dpt_metrics {
964 u_int32_t command_count[256]; /* We assume MAX 256 SCSI commands */
965 u_int32_t max_command_time[256];
966 u_int32_t min_command_time[256];
968 u_int32_t min_intr_time;
969 u_int32_t max_intr_time;
970 u_int32_t aborted_interrupts;
971 u_int32_t spurious_interrupts;
973 u_int32_t max_waiting_count;
974 u_int32_t max_submit_count;
975 u_int32_t max_complete_count;
977 u_int32_t min_waiting_time;
978 u_int32_t min_submit_time;
979 u_int32_t min_complete_time;
981 u_int32_t max_waiting_time;
982 u_int32_t max_submit_time;
983 u_int32_t max_complete_time;
985 u_int32_t command_collisions;
986 u_int32_t command_too_busy;
987 u_int32_t max_eata_tries;
988 u_int32_t min_eata_tries;
990 u_int32_t read_by_size_count[10];
991 u_int32_t write_by_size_count[10];
992 u_int32_t read_by_size_min_time[10];
993 u_int32_t read_by_size_max_time[10];
994 u_int32_t write_by_size_min_time[10];
995 u_int32_t write_by_size_max_time[10];
1005 #define SIZE_BIGGER 8
1006 #define SIZE_OTHER 9
1008 struct timeval intr_started;
1010 u_int32_t warm_starts;
1011 u_int32_t cold_boots;
1015 struct sg_map_node {
1016 bus_dmamap_t sg_dmamap;
1017 bus_addr_t sg_physaddr;
1019 SLIST_ENTRY(sg_map_node) links;
1022 /* Main state machine and interface structure */
1023 typedef struct dpt_softc {
1024 bus_space_tag_t tag;
1025 bus_space_handle_t bsh;
1026 bus_dma_tag_t buffer_dmat; /* dmat for buffer I/O */
1027 dpt_ccb_t *dpt_dccbs; /* Array of dpt ccbs */
1028 bus_addr_t dpt_ccb_busbase; /* phys base address of array */
1029 bus_addr_t dpt_ccb_busend; /* phys end address of array */
1031 u_int32_t handle_interrupts :1, /* Are we ready for real work? */
1032 target_mode_enabled :1,
1033 resource_shortage :1,
1042 SLIST_HEAD(, dpt_ccb) free_dccb_list;
1043 LIST_HEAD(, ccb_hdr) pending_ccb_list;
1045 bus_dma_tag_t parent_dmat;
1046 bus_dma_tag_t dccb_dmat; /* dmat for our ccb array */
1047 bus_dmamap_t dccb_dmamap;
1048 bus_dma_tag_t sg_dmat; /* dmat for our sg maps */
1049 SLIST_HEAD(, sg_map_node) sg_maps;
1051 struct cam_sim *sims[MAX_CHANNELS];
1052 struct cam_path *paths[MAX_CHANNELS];
1053 u_int32_t commands_processed;
1054 u_int32_t lost_interrupts;
1057 * These three parameters can be used to allow for wide scsi, and
1058 * for host adapters that support multiple busses. The first two
1059 * should be set to 1 more than the actual max id or lun (i.e. 8 for
1062 * There is a FAT assumption here; We assume that these will never
1063 * exceed MAX_CHANNELS, MAX_TARGETS, MAX_LUNS
1065 u_int channels; /* # of avail scsi chan. */
1070 u_int8_t dma_channel;
1072 TAILQ_ENTRY(dpt_softc) links;
1077 * Every object on a unit can have a receiver, if it treats
1078 * us as a target. We do that so that separate and independant
1079 * clients can consume received buffers.
1082 #define DPT_RW_BUFFER_SIZE (8 * 1024)
1083 dpt_ccb_t *target_ccb[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1084 u_int8_t *rw_buffer[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1085 dpt_rec_buff buffer_receiver[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1087 dpt_inq_t board_data;
1088 u_int8_t EATA_revision;
1089 u_int8_t bustype; /* bustype of HBA */
1090 u_int32_t state; /* state of HBA */
1092 #define DPT_HA_FREE 0x00000000
1093 #define DPT_HA_OK 0x00000000
1094 #define DPT_HA_NO_TIMEOUT 0x00000000
1095 #define DPT_HA_BUSY 0x00000001
1096 #define DPT_HA_TIMEOUT 0x00000002
1097 #define DPT_HA_RESET 0x00000004
1098 #define DPT_HA_LOCKED 0x00000008
1099 #define DPT_HA_ABORTED 0x00000010
1100 #define DPT_HA_CONTROL_ACTIVE 0x00000020
1101 #define DPT_HA_SHUTDOWN_ACTIVE 0x00000040
1102 #define DPT_HA_COMMAND_ACTIVE 0x00000080
1103 #define DPT_HA_QUIET 0x00000100
1106 #define DPT_LOST_IRQ_SET 0x10000000
1107 #define DPT_LOST_IRQ_ACTIVE 0x20000000
1110 #ifdef DPT_HANDLE_TIMEOUTS
1111 #define DPT_HA_TIMEOUTS_SET 0x40000000
1112 #define DPT_HA_TIMEOUTS_ACTIVE 0x80000000
1115 u_int8_t primary; /* true if primary */
1117 u_int8_t more_support :1, /* HBA supports MORE flag */
1118 immediate_support :1, /* HBA supports IMMEDIATE */
1119 broken_INQUIRY :1, /* EISA HBA w/broken INQUIRY */
1122 u_int8_t resetlevel[MAX_CHANNELS];
1123 u_int32_t last_ccb; /* Last used ccb */
1124 u_int32_t cplen; /* size of CP in words */
1125 u_int16_t cppadlen; /* pad length of cp */
1126 u_int16_t max_dccbs;
1127 u_int16_t sgsize; /* Entries in the SG list */
1128 u_int8_t hostid[MAX_CHANNELS]; /* SCSI ID of HBA */
1129 u_int32_t cache_size;
1131 volatile dpt_sp_t *sp; /* status packet */
1132 /* Copied from the status packet during interrupt handler */
1134 u_int8_t scsi_stat; /* Target SCSI status */
1135 u_int32_t residue_len; /* Number of bytes not transferred */
1136 bus_addr_t sp_physaddr; /* phys address of status packet */
1139 * We put ALL conditional elements at the tail for the structure.
1140 * If we do not, then userland code will crash or trash based on which
1141 * kernel it is running with.
1142 * This isi most visible with usr/sbin/dpt_softc(8)
1145 #ifdef DPT_MEASURE_PERFORMANCE
1146 dpt_perf_t performance;
1149 #ifdef DPT_RESET_HBA
1150 struct timeval last_contact;
1155 * This structure is used to pass dpt_softc contents to userland via the
1156 * ioctl DPT_IOCTL_SOFTC. The reason for this maddness, is that FreeBSD
1157 * (all BSDs ?) chose to actually assign a nasty meaning to the IOCTL word,
1158 * encoding 13 bits of it as size. As dpt_softc_t is somewhere between
1159 * 8,594 and 8,600 (depends on options), we have to copy the data to
1160 * something less than 4KB long. This siliness also solves the problem of
1161 * varying definition of dpt_softc_t, As the variants are exluded from
1164 * See dpt_softc_t above for enumerations, comments and such.
1166 typedef struct dpt_user_softc {
1168 u_int32_t handle_interrupts :1, /* Are we ready for real work? */
1169 target_mode_enabled :1,
1172 int total_ccbs_count;
1173 int free_ccbs_count;
1174 int waiting_ccbs_count;
1175 int submitted_ccbs_count;
1176 int completed_ccbs_count;
1178 u_int32_t queue_status;
1179 u_int32_t free_lock;
1180 u_int32_t waiting_lock;
1181 u_int32_t submitted_lock;
1182 u_int32_t completed_lock;
1184 u_int32_t commands_processed;
1185 u_int32_t lost_interrupts;
1192 u_int8_t *v_membase;
1193 u_int8_t *p_membase;
1196 u_int8_t dma_channel;
1198 dpt_inq_t board_data;
1199 u_int8_t EATA_revision;
1204 u_int8_t more_support :1,
1205 immediate_support :1,
1209 u_int8_t resetlevel[MAX_CHANNELS];
1213 u_int16_t queuesize;
1215 u_int8_t hostid[MAX_CHANNELS];
1216 u_int32_t cache_type :2,
1222 * These all come from dpt_scsi.c
1226 /* This function gets the current hi-res time and returns it to the caller */
1227 static __inline struct timeval
1237 * Given a minor device number, get its SCSI Unit.
1240 dpt_minor2unit(int minor)
1242 return(minor2hba(minor));
1245 dpt_softc_t *dpt_minor2softc(int minor_no);
1247 #endif /* _KERNEL */
1250 * This function substracts one timval structure from another,
1251 * Returning the result in usec.
1252 * It assumes that less than 4 billion usecs passed form start to end.
1253 * If times are sensless, ~0 is returned.
1255 static __inline u_int32_t
1256 dpt_time_delta(struct timeval start,
1259 if (start.tv_sec > end.tv_sec)
1262 if ( (start.tv_sec == end.tv_sec) && (start.tv_usec > end.tv_usec) )
1265 return ( (end.tv_sec - start.tv_sec) * 1000000 +
1266 (end.tv_usec - start.tv_usec) );
1269 extern TAILQ_HEAD(dpt_softc_list, dpt_softc) dpt_softcs;
1271 extern int dpt_controllers_present;
1274 dpt_softc_t * dpt_alloc(device_t, bus_space_tag_t, bus_space_handle_t);
1276 void dpt_free(struct dpt_softc *dpt);
1277 int dpt_init(struct dpt_softc *dpt);
1278 int dpt_attach(dpt_softc_t * dpt);
1279 void dpt_intr(void *arg);
1281 dpt_conf_t * dpt_pio_get_conf(u_int32_t);
1284 extern void hex_dump(u_char * data, int length,
1285 char *name, int no);
1286 extern char *i2bin(unsigned int no, int length);
1287 extern char *scsi_cmd_name(u_int8_t cmd);
1289 extern dpt_conf_t *dpt_get_conf(dpt_softc_t *dpt, u_int8_t page,
1290 u_int8_t target, u_int8_t size,
1293 extern int dpt_setup(dpt_softc_t * dpt, dpt_conf_t * conf);
1294 extern int dpt_attach(dpt_softc_t * dpt);
1295 extern void dpt_shutdown(int howto, dpt_softc_t *dpt);
1296 extern void dpt_detect_cache(dpt_softc_t *dpt);
1298 extern int dpt_user_cmd(dpt_softc_t *dpt, eata_pt_t *user_cmd,
1299 caddr_t cmdarg, int minor_no);
1301 extern u_int8_t dpt_blinking_led(dpt_softc_t *dpt);
1303 extern dpt_rb_t dpt_register_buffer(int unit, u_int8_t channel, u_int8_t target,
1304 u_int8_t lun, u_int8_t mode,
1305 u_int16_t length, u_int16_t offset,
1306 dpt_rec_buff callback, dpt_rb_op_t op);
1308 extern int dpt_send_buffer(int unit, u_int8_t channel, u_int8_t target,
1309 u_int8_t lun, u_int8_t mode, u_int16_t length,
1310 u_int16_t offset, void *data,
1311 buff_wr_done callback);
1315 void dpt_reset_performance(dpt_softc_t *dpt);