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>
51 #undef DPT_USE_DLM_SWI
58 #define DPT_YEAR 18 /* 1998 - 1980 */
60 #define DPT_CTL_RELEASE 1
61 #define DPT_CTL_VERSION 0
62 #define DPT_CTL_PATCH 6
69 typedef void *physaddr;
72 #undef DPT_INQUIRE_DEVICES /* We have no buyers for this function */
73 #define DPT_SUPPORT_POLLING /* Use polled mode at boot (must be ON!) */
74 #define DPT_OPENNINGS 8 /* Commands-in-progress per device */
76 #define DPT_RETRIES 5 /* Times to retry failed commands */
80 /* Arguments to dpt_run_queue() can be: */
82 #define DPT_MAX_TARGET_MODE_BUFFER_SIZE 8192
83 #define DPT_FREE_LIST_INCREMENT 64
84 #define DPT_CMD_LEN 12
87 * How many segments do we want in a Scatter/Gather list?
88 * Some HBA's can do 16, Some 8192. Since we pre-allocate
89 * them in fixed increments, we need to put a practical limit on
90 * these. A passed parameter (from kernel boot or lkm) would help
92 #define DPT_MAX_SEGS 32
98 #undef DPT_DEBUG_SETUP
99 #undef DPT_DEBUG_STATES
100 #undef DPT_DEBUG_CONFIG
101 #undef DPT_DEBUG_QUEUES
102 #undef DPT_DEBUG_SCSI_CMD
103 #undef DPT_DEBUG_SOFTINTR
104 #undef DPT_DEBUG_HARDINTR
105 #undef DPT_DEBUG_HEX_DUMPS
106 #undef DPT_DEBUG_POLLING
107 #undef DPT_DEBUG_INQUIRE
108 #undef DPT_DEBUG_COMPLETION
109 #undef DPT_DEBUG_COMPLETION_ERRORS
110 #define DPT_DEBUG_MINPHYS
112 #undef DPT_DEBUG_SG_SHOW_DATA
113 #undef DPT_DEBUG_SCSI_CMD_NAME
114 #undef DPT_DEBUG_CONTROL
115 #undef DPT_DEBUG_TIMEOUTS
116 #undef DPT_DEBUG_SHUTDOWN
117 #define DPT_DEBUG_USER_CMD
127 #define MAX_CHANNELS 3
128 #define MAX_TARGETS 16
131 /* Map minor numbers to device identity */
132 #define TARGET_MASK 0x000f
133 #define BUS_MASK 0x0030
134 #define HBA_MASK 0x01c0
135 #define LUN_MASK 0x0e00
137 #define minor2target(minor) ( minor & TARGET_MASK )
138 #define minor2bus(minor) ( (minor & BUS_MASK) >> 4 )
139 #define minor2hba(minor) ( (minor & HBA_MASK) >> 6 )
140 #define minor2lun(minor) ( (minor & LUN_MASK) >> 9 )
143 * Valid values for cache_type
145 #define DPT_NO_CACHE 0
146 #define DPT_CACHE_WRITETHROUGH 1
147 #define DPT_CACHE_WRITEBACK -2
149 #define min(a,b) ((a<b)?(a):(b))
161 #define BROKEN_INQUIRY 1
163 #define BUSMASTER 0xff
166 #define EATA_SIGNATURE 0x41544145 /* little ENDIAN "EATA" */
167 #define DPT_BLINK_INDICATOR 0x42445054
179 #define MAX_PCI_DEVICES 32 /* Maximum # Of Devices Per Bus */
180 #define MAX_METHOD_2 16 /* Max Devices For Method 2 */
181 #define MAX_PCI_BUS 16 /* Maximum # Of Busses Allowed */
183 #define DPT_MAX_RETRIES 2
189 #define HD(cmd) ((hostdata *)&(cmd->host->hostdata))
190 #define CD(cmd) ((struct eata_ccb *)(cmd->host_scribble))
191 #define SD(host) ((hostdata *)&(host->hostdata))
194 * EATA Command & Register definitions
197 #define PCI_REG_DPTconfig 0x40
198 #define PCI_REG_PumpModeAddress 0x44
199 #define PCI_REG_PumpModeData 0x48
200 #define PCI_REG_ConfigParam1 0x50
201 #define PCI_REG_ConfigParam2 0x54
203 #define EATA_CMD_PIO_SETUPTEST 0xc6
204 #define EATA_CMD_PIO_READ_CONFIG 0xf0
205 #define EATA_CMD_PIO_SET_CONFIG 0xf1
206 #define EATA_CMD_PIO_SEND_CP 0xf2
207 #define EATA_CMD_PIO_RECEIVE_SP 0xf3
208 #define EATA_CMD_PIO_TRUNC 0xf4
210 #define EATA_CMD_RESET 0xf9
211 #define EATA_COLD_BOOT 0x06 /* Last resort only! */
213 #define EATA_CMD_IMMEDIATE 0xfa
215 #define EATA_CMD_DMA_READ_CONFIG 0xfd
216 #define EATA_CMD_DMA_SET_CONFIG 0xfe
217 #define EATA_CMD_DMA_SEND_CP 0xff
219 #define ECS_EMULATE_SENSE 0xd4
223 * Beware of this enumeration. Not all commands are in sequence!
226 enum dpt_immediate_cmd {
232 EATA_SMART_ROM_DL_EN,
233 EATA_COLD_BOOT_HBA, /* Only as a last resort */
235 EATA_SCSI_BUS_OFFLINE,
236 EATA_RESET_MASKED_BUS,
240 #define HA_CTRLREG 0x206 /* control register for HBA */
241 #define HA_CTRL_DISINT 0x02 /* CTRLREG: disable interrupts */
242 #define HA_CTRL_RESCPU 0x04 /* CTRLREG: reset processo */
243 #define HA_CTRL_8HEADS 0x08 /*
244 * CTRLREG: set for drives with
246 * (WD1003 rudimentary :-)
249 #define HA_WCOMMAND 0x07 /* command register offset */
250 #define HA_WIFC 0x06 /* immediate command offset */
251 #define HA_WCODE 0x05
252 #define HA_WCODE2 0x04
253 #define HA_WDMAADDR 0x02 /* DMA address LSB offset */
254 #define HA_RERROR 0x01 /* Error Register, offset 1 from base */
255 #define HA_RAUXSTAT 0x08 /* aux status register offset */
256 #define HA_RSTATUS 0x07 /* status register offset */
257 #define HA_RDATA 0x00 /* data register (16bit) */
258 #define HA_WDATA 0x00 /* data register (16bit) */
260 #define HA_ABUSY 0x01 /* aux busy bit */
261 #define HA_AIRQ 0x02 /* aux IRQ pending bit */
262 #define HA_SERROR 0x01 /* pr. command ended in error */
263 #define HA_SMORE 0x02 /* more data soon to come */
264 #define HA_SCORR 0x04 /* datio_addra corrected */
265 #define HA_SDRQ 0x08 /* data request active */
266 #define HA_SSC 0x10 /* seek complete */
267 #define HA_SFAULT 0x20 /* write fault */
268 #define HA_SREADY 0x40 /* drive ready */
269 #define HA_SBUSY 0x80 /* drive busy */
270 #define HA_SDRDY (HA_SSC|HA_SREADY|HA_SDRQ)
273 * Message definitions
277 HA_NO_ERROR, /* No Error */
278 HA_ERR_SEL_TO, /* Selection Timeout */
279 HA_ERR_CMD_TO, /* Command Timeout */
281 HA_HBA_POWER_UP, /* Initial Controller Power-up */
282 HA_UNX_BUSPHASE, /* Unexpected Bus Phase */
283 HA_UNX_BUS_FREE, /* Unexpected Bus Free */
284 HA_BUS_PARITY, /* Bus Parity Error */
285 HA_SCSI_HUNG, /* SCSI Hung */
286 HA_UNX_MSGRJCT, /* Unexpected Message Rejected */
287 HA_RESET_STUCK, /* SCSI Bus Reset Stuck */
288 HA_RSENSE_FAIL, /* Auto Request-Sense Failed */
289 HA_PARITY_ERR, /* Controller Ram Parity Error */
290 HA_CP_ABORT_NA, /* Abort Message sent to non-active cmd */
291 HA_CP_ABORTED, /* Abort Message sent to active cmd */
292 HA_CP_RESET_NA, /* Reset Message sent to non-active cmd */
293 HA_CP_RESET, /* Reset Message sent to active cmd */
294 HA_ECC_ERR, /* Controller Ram ECC Error */
295 HA_PCI_PARITY, /* PCI Parity Error */
296 HA_PCI_MABORT, /* PCI Master Abort */
297 HA_PCI_TABORT, /* PCI Target Abort */
298 HA_PCI_STABORT /* PCI Signaled Target Abort */
301 #define HA_STATUS_MASK 0x7F
302 #define HA_IDENTIFY_MSG 0x80
303 #define HA_DISCO_RECO 0x40 /* Disconnect/Reconnect */
305 #define DPT_RW_BUFF_HEART 0X00
306 #define DPT_RW_BUFF_DLM 0x02
307 #define DPT_RW_BUFF_ACCESS 0x03
309 #define HA_INTR_OFF 1
312 /* This is really a one-time shot through some black magic */
313 #define DPT_EATA_REVA 0x1c
314 #define DPT_EATA_REVB 0x1e
315 #define DPT_EATA_REVC 0x22
316 #define DPT_EATA_REVZ 0x24
321 #define DPT_RW_CMD_LEN 32
322 #define DPT_RW_CMD_DUMP_SOFTC "dump softc"
323 #define DPT_RW_CMD_DUMP_SYSINFO "dump sysinfo"
324 #define DPT_RW_CMD_DUMP_METRICS "dump metrics"
325 #define DPT_RW_CMD_CLEAR_METRICS "clear metrics"
326 #define DPT_RW_CMD_SHOW_LED "show LED"
328 #define DPT_IOCTL_INTERNAL_METRICS _IOR('D', 1, dpt_perf_t)
329 #define DPT_IOCTL_SOFTC _IOR('D', 2, dpt_user_softc_t)
330 #define DPT_IOCTL_SEND _IOWR('D', 3, eata_pt_t)
331 #define SDI_SEND 0x40044444 /* Observed from dptmgr */
337 #define DPT_HCP_LENGTH(page) (ntohs(*(int16_t *)(void *)(&page[2]))+4)
338 #define DPT_HCP_FIRST(page) (&page[4])
339 #define DPT_HCP_NEXT(param) (¶m[3 + param[3] + 1])
340 #define DPT_HCP_CODE(param) (ntohs(*(int16_t *)(void *)param))
343 /* Possible return values from dpt_register_buffer() */
345 #define SCSI_TM_READ_BUFFER 0x3c
346 #define SCSI_TM_WRITE_BUFFER 0x3b
348 #define SCSI_TM_MODE_MASK 0x07 /* Strip off reserved and LUN */
349 #define SCSI_TM_LUN_MASK 0xe0 /* Strip off reserved and LUN */
352 SUCCESSFULLY_REGISTERED,
355 REGISTERED_TO_ANOTHER,
369 * New way for completion routines to reliably copmplete processing.
370 * Should take properly typed dpt_softc_t and dpt_ccb_t,
371 * but interdependencies preclude that.
373 typedef void (*ccb_callback)(void *dpt, int bus, void *ccb);
375 typedef void (*buff_wr_done)(int unit, u_int8_t channel, u_int8_t target,
376 u_int8_t lun, u_int16_t offset, u_int16_t length,
379 typedef void (*dpt_rec_buff)(int unit, u_int8_t channel, u_int8_t target,
380 u_int8_t lun, void *buffer, u_int16_t offset,
383 /* HBA's Status port (register) bitmap */
384 typedef struct reg_bit { /* reading this one will clear the interrupt */
385 u_int8_t error :1, /* previous command ended in an error */
386 more :1, /* More DATA coming soon Poll BSY & DRQ (PIO) */
387 corr :1, /* data read was successfully corrected with ECC */
388 drq :1, /* data request active */
389 sc :1, /* seek complete */
390 fault :1, /* write fault */
391 ready :1, /* drive ready */
392 busy :1; /* controller busy */
395 /* HBA's Auxiliary status port (register) bitmap */
396 typedef struct reg_abit { /* reading this won't clear the interrupt */
397 u_int8_t abusy :1, /* auxiliary busy */
398 irq :1, /* set when drive interrupt is asserted */
402 /* The EATA Register Set as a structure */
403 typedef struct eata_register {
404 u_int8_t data_reg[2]; /* R, couldn't figure this one out */
405 u_int8_t cp_addr[4]; /* W, CP address register */
409 * [read|set] conf, send CP
411 struct reg_bit status; /* R, see register_bit1 */
414 struct reg_abit aux_stat; /* R, see register_bit2 */
418 * Holds the results of a READ_CONFIGURATION command
419 * Beware of data items which are larger than 1 byte.
420 * these come from the DPT in network order.
421 * On an Intel ``CPU'' they will be upside down and backwards!
422 * The dpt_get_conf function is normally responsible for flipping
425 typedef struct get_conf { /* Read Configuration Array */
428 u_int8_t foo_DevType;
429 u_int8_t foo_PageCode;
430 u_int8_t foo_Reserved0;
433 u_int32_t foo_length; /* Should return 0x22, 0x24, etc */
435 #define gcs_length bar.foo_length
436 #define gcs_PageCode bar.foo.foo_DevType
437 #define gcs_reserved0 bar.foo.foo_Reserved0
438 #define gcs_len bar.foo.foo_len
440 u_int32_t signature; /* Signature MUST be "EATA". ntohl()`ed */
442 u_int8_t version2 :4,
443 version :4; /* EATA Version level */
445 u_int8_t OCS_enabled :1, /* Overlap Command Support enabled */
446 TAR_support :1, /* SCSI Target Mode supported */
447 TRNXFR :1, /* Truncate Transfer Cmd Used in PIO Mode */
448 MORE_support:1, /* MORE supported (PIO Mode Only) */
449 DMA_support :1, /* DMA supported */
450 DMA_valid :1, /* DRQ value in Byte 30 is valid */
451 ATA :1, /* ATA device connected (not supported) */
452 HAA_valid :1; /* Hostadapter Address is valid */
454 u_int16_t cppadlen; /*
455 * Number of pad bytes send after CD data set
456 * to zero for DMA commands. Ntohl()`ed
458 u_int8_t scsi_idS; /* SCSI ID of controller 2-0 Byte 0 res. */
459 u_int8_t scsi_id2; /* If not, zero is returned */
462 u_int32_t cplen; /* CP length: number of valid cp bytes */
464 u_int32_t splen; /* Returned bytes for a received SP command */
465 u_int16_t queuesiz; /* max number of queueable CPs */
468 u_int16_t SGsiz; /* max number of SG table entrie */
470 u_int8_t IRQ :4,/* IRQ used this HBA */
471 IRQ_TR :1,/* IRQ Trigger: 0=edge, 1=level */
472 SECOND :1,/* This is a secondary controller */
473 DMA_channel:2;/* DRQ index, DRQ is 2comp of DRQX */
475 u_int8_t sync; /* 0-7 sync active bitmask (deprecated) */
476 u_int8_t DSBLE :1, /* ISA i/o addressing is disabled */
477 FORCADR :1, /* i/o address has been forced */
482 u_int8_t MAX_ID :5, /* Max number of SCSI target IDs */
483 MAX_CHAN :3; /* Number of SCSI busses on HBA */
485 u_int8_t MAX_LUN; /* Max number of LUNs */
489 ID_qest :1, /* Raidnum ID is questionable */
490 is_PCI :1, /* HBA is PCI */
491 is_EISA :1; /* HBA is EISA */
493 u_int8_t RAIDNUM; /* unique HBA identifier */
494 u_int8_t unused[4]; /* When doing PIO, you GET 512 bytes */
496 /* >>------>> End of The DPT structure <<------<< */
498 u_int32_t length; /* True length, after ntohl conversion */
501 /* Scatter-Gather list entry */
502 typedef struct dpt_sg_segment {
503 u_int32_t seg_addr; /* All fields in network byte order */
509 typedef struct eata_sp {
510 u_int8_t hba_stat :7, /* HBA status */
511 EOC :1; /* True if command finished */
513 u_int8_t scsi_stat; /* Target SCSI status */
515 u_int8_t reserved[2];
517 u_int32_t residue_len; /* Number of bytes not transferred */
519 u_int32_t ccb_busaddr;
521 u_int8_t sp_ID_Message;
522 u_int8_t sp_Que_Message;
523 u_int8_t sp_Tag_Message;
528 * A strange collection of O/S-Hardware releated bits and pieces.
529 * Used by the dpt_ioctl() entry point to return DPT_SYSINFO command.
531 typedef struct dpt_drive_parameters {
532 u_int16_t cylinders; /* Up to 1024 */
533 u_int8_t heads; /* Up to 255 */
534 u_int8_t sectors; /* Up to 63 */
537 typedef struct driveParam_S driveParam_T;
539 #define SI_CMOS_Valid 0x0001
540 #define SI_NumDrivesValid 0x0002
541 #define SI_ProcessorValid 0x0004
542 #define SI_MemorySizeValid 0x0008
543 #define SI_DriveParamsValid 0x0010
544 #define SI_SmartROMverValid 0x0020
545 #define SI_OSversionValid 0x0040
546 #define SI_OSspecificValid 0x0080
547 #define SI_BusTypeValid 0x0100
549 #define SI_ALL_VALID 0x0FFF
550 #define SI_NO_SmartROM 0x8000
552 #define SI_ISA_BUS 0x00
553 #define SI_MCA_BUS 0x01
554 #define SI_EISA_BUS 0x02
555 #define SI_PCI_BUS 0x04
557 #define HBA_BUS_ISA 0x00
558 #define HBA_BUS_EISA 0x01
559 #define HBA_BUS_PCI 0x02
561 typedef struct dpt_sysinfo {
562 u_int8_t drive0CMOS; /* CMOS Drive 0 Type */
563 u_int8_t drive1CMOS; /* CMOS Drive 1 Type */
564 u_int8_t numDrives; /* 0040:0075 contents */
565 u_int8_t processorFamily; /* Same as DPTSIG definition */
566 u_int8_t processorType; /* Same as DPTSIG definition */
567 u_int8_t smartROMMajorVersion;
568 u_int8_t smartROMMinorVersion; /* SmartROM version */
569 u_int8_t smartROMRevision;
570 u_int16_t flags; /* See bit definitions above */
571 u_int16_t conventionalMemSize; /* in KB */
572 u_int32_t extendedMemSize; /* in KB */
573 u_int32_t osType; /* Same as DPTSIG definition */
574 u_int8_t osMajorVersion;
575 u_int8_t osMinorVersion; /* The OS version */
577 u_int8_t osSubRevision;
578 u_int8_t busType; /* See defininitions above */
579 u_int8_t pad[3]; /* For alignment */
580 dpt_drive_t drives[16]; /* SmartROM Logical Drives */
583 /* SEND_COMMAND packet structure */
584 typedef struct eata_ccb {
585 u_int8_t SCSI_Reset :1, /* Cause a SCSI Bus reset on the cmd */
586 HBA_Init :1, /* Cause Controller to reinitialize */
587 Auto_Req_Sen :1, /* Do Auto Request Sense on errors */
588 scatter :1, /* Data Ptr points to a SG Packet */
589 Quick :1, /* Set this one for NO Status PAcket */
590 Interpret :1, /* Interpret the SCSI cdb for own use */
591 DataOut :1, /* Data Out phase with command */
592 DataIn :1; /* Data In phase with command */
594 u_int8_t reqlen; /* Request Sense Length, if Auto_Req_Sen=1 */
596 u_int8_t FWNEST :1, /* send cmd to phys RAID component */
599 u_int8_t Phsunit :1, /* physical unit on mirrored pair */
600 I_AT :1, /* inhibit address translation */
601 Disable_Cache :1, /* HBA inhibit caching */
604 u_int8_t cp_id :5, /* SCSI Device ID of target */
605 cp_channel :3; /* SCSI Channel # of HBA */
608 cp_luntar :1, /* CP is for target ROUTINE */
609 cp_dispri :1, /* Grant disconnect privilege */
610 cp_identify :1; /* Always TRUE */
612 u_int8_t cp_msg[3]; /* Message bytes 0-3 */
616 u_int8_t x_scsi_cmd; /* Partial SCSI CDB def */
618 u_int8_t x_extent :1,
630 u_int8_t reserved5 :4;
631 u_int8_t x_vendor :2;
633 u_int8_t z[12]; /* Command Descriptor Block (= 12) */
636 #define cp_cdb cp_w.z
637 #define cp_scsi_cmd cp_w.x.x_scsi_cmd
638 #define cp_extent cp_w.x.x_extent
639 #define cp_lun cp_w.x.x_lun
640 #define cp_page cp_w.x.x_page
641 #define cp_len cp_w.x.x_len
643 #define MULTIFUNCTION_CMD 0x0e /* SCSI Multi Function Cmd */
644 #define BUS_QUIET 0x04 /* Quite Scsi Bus Code */
645 #define BUS_UNQUIET 0x05 /* Un Quiet Scsi Bus Code */
647 u_int32_t cp_datalen; /*
648 * Data Transfer Length. If scatter=1 len (IN
649 * BYTES!) of the S/G array
652 u_int32_t cp_busaddr; /* Unique identifier. Busaddr works well */
653 u_int32_t cp_dataDMA; /*
654 * Data Address, if scatter=1 then it is the
655 * address of scatter packet
657 u_int32_t cp_statDMA; /* address for Status Packet */
658 u_int32_t cp_reqDMA; /*
659 * Request Sense Address, used if CP command
667 * DPT Signature Structure.
668 * Used by /dev/dpt to directly pass commands to the HBA
669 * We have more information here than we care for...
672 /* Current Signature Version - sigBYTE dsSigVersion; */
673 #define SIG_VERSION 1
676 * Processor Family - sigBYTE dsProcessorFamily; DISTINCT VALUE
678 * What type of processor the file is meant to run on.
679 * This will let us know whether to read sigWORDs as high/low or low/high.
681 #define PROC_INTEL 0x00 /* Intel 80x86 */
682 #define PROC_MOTOROLA 0x01 /* Motorola 68K */
683 #define PROC_MIPS4000 0x02 /* MIPS RISC 4000 */
684 #define PROC_ALPHA 0x03 /* DEC Alpha */
687 * Specific Minimim Processor - sigBYTE dsProcessor; FLAG BITS
689 * Different bit definitions dependent on processor_family
693 #define PROC_8086 0x01 /* Intel 8086 */
694 #define PROC_286 0x02 /* Intel 80286 */
695 #define PROC_386 0x04 /* Intel 80386 */
696 #define PROC_486 0x08 /* Intel 80486 */
697 #define PROC_PENTIUM 0x10 /* Intel 586 aka P5 aka Pentium */
698 #define PROC_P6 0x20 /* Intel 686 aka P6 */
701 #define PROC_68000 0x01 /* Motorola 68000 */
702 #define PROC_68020 0x02 /* Motorola 68020 */
703 #define PROC_68030 0x04 /* Motorola 68030 */
704 #define PROC_68040 0x08 /* Motorola 68040 */
706 /* Filetype - sigBYTE dsFiletype; DISTINCT VALUES */
707 #define FT_EXECUTABLE 0 /* Executable Program */
708 #define FT_SCRIPT 1 /* Script/Batch File??? */
709 #define FT_HBADRVR 2 /* HBA Driver */
710 #define FT_OTHERDRVR 3 /* Other Driver */
711 #define FT_IFS 4 /* Installable Filesystem Driver */
712 #define FT_ENGINE 5 /* DPT Engine */
713 #define FT_COMPDRVR 6 /* Compressed Driver Disk */
714 #define FT_LANGUAGE 7 /* Foreign Language file */
715 #define FT_FIRMWARE 8 /* Downloadable or actual Firmware */
716 #define FT_COMMMODL 9 /* Communications Module */
717 #define FT_INT13 10 /* INT 13 style HBA Driver */
718 #define FT_HELPFILE 11 /* Help file */
719 #define FT_LOGGER 12 /* Event Logger */
720 #define FT_INSTALL 13 /* An Install Program */
721 #define FT_LIBRARY 14 /* Storage Manager Real-Mode Calls */
722 #define FT_RESOURCE 15 /* Storage Manager Resource File */
723 #define FT_MODEM_DB 16 /* Storage Manager Modem Database */
725 /* Filetype flags - sigBYTE dsFiletypeFlags; FLAG BITS */
726 #define FTF_DLL 0x01 /* Dynamic Link Library */
727 #define FTF_NLM 0x02 /* Netware Loadable Module */
728 #define FTF_OVERLAYS 0x04 /* Uses overlays */
729 #define FTF_DEBUG 0x08 /* Debug version */
730 #define FTF_TSR 0x10 /* TSR */
731 #define FTF_SYS 0x20 /* DOS Lodable driver */
732 #define FTF_PROTECTED 0x40 /* Runs in protected mode */
733 #define FTF_APP_SPEC 0x80 /* Application Specific */
735 /* OEM - sigBYTE dsOEM; DISTINCT VALUES */
736 #define OEM_DPT 0 /* DPT */
737 #define OEM_ATT 1 /* ATT */
738 #define OEM_NEC 2 /* NEC */
739 #define OEM_ALPHA 3 /* Alphatronix */
740 #define OEM_AST 4 /* AST */
741 #define OEM_OLIVETTI 5 /* Olivetti */
742 #define OEM_SNI 6 /* Siemens/Nixdorf */
744 /* Operating System - sigLONG dsOS; FLAG BITS */
745 #define OS_DOS 0x00000001 /* PC/MS-DOS */
746 #define OS_WINDOWS 0x00000002 /* Microsoft Windows 3.x */
747 #define OS_WINDOWS_NT 0x00000004 /* Microsoft Windows NT */
748 #define OS_OS2M 0x00000008 /* OS/2 1.2.x,MS 1.3.0,IBM 1.3.x */
749 #define OS_OS2L 0x00000010 /* Microsoft OS/2 1.301 - LADDR */
750 #define OS_OS22x 0x00000020 /* IBM OS/2 2.x */
751 #define OS_NW286 0x00000040 /* Novell NetWare 286 */
752 #define OS_NW386 0x00000080 /* Novell NetWare 386 */
753 #define OS_GEN_UNIX 0x00000100 /* Generic Unix */
754 #define OS_SCO_UNIX 0x00000200 /* SCO Unix */
755 #define OS_ATT_UNIX 0x00000400 /* ATT Unix */
756 #define OS_UNIXWARE 0x00000800 /* UnixWare Unix */
757 #define OS_INT_UNIX 0x00001000 /* Interactive Unix */
758 #define OS_SOLARIS 0x00002000 /* SunSoft Solaris */
759 #define OS_QN 0x00004000 /* QNX for Tom Moch */
760 #define OS_NEXTSTEP 0x00008000 /* NeXTSTEP */
761 #define OS_BANYAN 0x00010000 /* Banyan Vines */
762 #define OS_OLIVETTI_UNIX 0x00020000 /* Olivetti Unix */
763 #define OS_FREEBSD 0x00040000 /* FreeBSD 2.2 and later */
764 #define OS_OTHER 0x80000000 /* Other */
766 /* Capabilities - sigWORD dsCapabilities; FLAG BITS */
767 #define CAP_RAID0 0x0001 /* RAID-0 */
768 #define CAP_RAID1 0x0002 /* RAID-1 */
769 #define CAP_RAID3 0x0004 /* RAID-3 */
770 #define CAP_RAID5 0x0008 /* RAID-5 */
771 #define CAP_SPAN 0x0010 /* Spanning */
772 #define CAP_PASS 0x0020 /* Provides passthrough */
773 #define CAP_OVERLAP 0x0040 /* Passthrough supports overlapped commands */
774 #define CAP_ASPI 0x0080 /* Supports ASPI Command Requests */
775 #define CAP_ABOVE16MB 0x0100 /* ISA Driver supports greater than 16MB */
776 #define CAP_EXTEND 0x8000 /* Extended info appears after description */
778 /* Devices Supported - sigWORD dsDeviceSupp; FLAG BITS */
779 #define DEV_DASD 0x0001 /* DASD (hard drives) */
780 #define DEV_TAPE 0x0002 /* Tape drives */
781 #define DEV_PRINTER 0x0004 /* Printers */
782 #define DEV_PROC 0x0008 /* Processors */
783 #define DEV_WORM 0x0010 /* WORM drives */
784 #define DEV_CDROM 0x0020 /* CD-ROM drives */
785 #define DEV_SCANNER 0x0040 /* Scanners */
786 #define DEV_OPTICAL 0x0080 /* Optical Drives */
787 #define DEV_JUKEBOX 0x0100 /* Jukebox */
788 #define DEV_COMM 0x0200 /* Communications Devices */
789 #define DEV_OTHER 0x0400 /* Other Devices */
790 #define DEV_ALL 0xFFFF /* All SCSI Devices */
792 /* Adapters Families Supported - sigWORD dsAdapterSupp; FLAG BITS */
793 #define ADF_2001 0x0001 /* PM2001 */
794 #define ADF_2012A 0x0002 /* PM2012A */
795 #define ADF_PLUS_ISA 0x0004 /* PM2011,PM2021 */
796 #define ADF_PLUS_EISA 0x0008 /* PM2012B,PM2022 */
797 #define ADF_SC3_ISA 0x0010 /* PM2021 */
798 #define ADF_SC3_EISA 0x0020 /* PM2022,PM2122, etc */
799 #define ADF_SC3_PCI 0x0040 /* SmartCache III PCI */
800 #define ADF_SC4_ISA 0x0080 /* SmartCache IV ISA */
801 #define ADF_SC4_EISA 0x0100 /* SmartCache IV EISA */
802 #define ADF_SC4_PCI 0x0200 /* SmartCache IV PCI */
803 #define ADF_ALL_MASTER 0xFFFE /* All bus mastering */
804 #define ADF_ALL_CACHE 0xFFFC /* All caching */
805 #define ADF_ALL 0xFFFF /* ALL DPT adapters */
807 /* Application - sigWORD dsApplication; FLAG BITS */
808 #define APP_DPTMGR 0x0001 /* DPT Storage Manager */
809 #define APP_ENGINE 0x0002 /* DPT Engine */
810 #define APP_SYTOS 0x0004 /* Sytron Sytos Plus */
811 #define APP_CHEYENNE 0x0008 /* Cheyenne ARCServe + ARCSolo */
812 #define APP_MSCDEX 0x0010 /* Microsoft CD-ROM extensions */
813 #define APP_NOVABACK 0x0020 /* NovaStor Novaback */
814 #define APP_AIM 0x0040 /* Archive Information Manager */
816 /* Requirements - sigBYTE dsRequirements; FLAG BITS */
817 #define REQ_SMARTROM 0x01 /* Requires SmartROM to be present */
818 #define REQ_DPTDDL 0x02 /* Requires DPTDDL.SYS to be loaded */
819 #define REQ_HBA_DRIVER 0x04 /* Requires an HBA driver to be loaded */
820 #define REQ_ASPI_TRAN 0x08 /* Requires an ASPI Transport Modules */
821 #define REQ_ENGINE 0x10 /* Requires a DPT Engine to be loaded */
822 #define REQ_COMM_ENG 0x20 /* Requires a DPT Communications Engine */
824 typedef struct dpt_sig {
825 char dsSignature[6]; /* ALWAYS "dPtSiG" */
826 u_int8_t SigVersion; /* signature version (currently 1) */
827 u_int8_t ProcessorFamily; /* what type of processor */
828 u_int8_t Processor; /* precise processor */
829 u_int8_t Filetype; /* type of file */
830 u_int8_t FiletypeFlags; /* flags to specify load type, etc. */
831 u_int8_t OEM; /* OEM file was created for */
832 u_int32_t OS; /* which Operating systems */
833 u_int16_t Capabilities; /* RAID levels, etc. */
834 u_int16_t DeviceSupp; /* Types of SCSI devices supported */
835 u_int16_t AdapterSupp; /* DPT adapter families supported */
836 u_int16_t Application; /* applications file is for */
837 u_int8_t Requirements; /* Other driver dependencies */
838 u_int8_t Version; /* 1 */
839 u_int8_t Revision; /* 'J' */
840 u_int8_t SubRevision; /* '9', ' ' if N/A */
841 u_int8_t Month; /* creation month */
842 u_int8_t Day; /* creation day */
843 u_int8_t Year; /* creation year since 1980 */
844 char *Description; /* description (NULL terminated) */
847 /* 32 bytes minimum - with no description. Put NULL at description[0] */
848 /* 81 bytes maximum - with 49 character description plus NULL. */
850 /* This line added at Roycroft's request */
851 /* Microsoft's NT compiler gets confused if you do a pack and don't */
853 typedef struct eata_pass_through {
857 #define EATAUSRCMD (('D'<<8)|65) /* EATA PassThrough Command */
858 #define DPT_SIGNATURE (('D'<<8)|67) /* Get Signature Structure */
859 #define DPT_NUMCTRLS (('D'<<8)|68) /* Get Number Of DPT Adapters */
860 #define DPT_CTRLINFO (('D'<<8)|69) /* Get Adapter Info Structure */
861 #define DPT_SYSINFO (('D'<<8)|72) /* Get System Info Structure */
862 #define DPT_BLINKLED (('D'<<8)|75) /* Get The BlinkLED Status */
864 u_int8_t *command_buffer;
865 eata_ccb_t command_packet;
867 u_int8_t host_status;
868 u_int8_t target_status;
875 DCCB_RELEASE_SIMQ = 0x02
878 typedef struct dpt_ccb {
882 u_int32_t sg_busaddr;
885 struct scsi_sense_data sense_data;
888 u_int8_t status; /* status of this queueslot */
889 u_int8_t *cmd; /* address of cmd */
891 u_int32_t transaction_id;
894 SLIST_ENTRY(dpt_ccb) links;
896 #ifdef DPT_MEASURE_PERFORMANCE
897 u_int32_t submitted_time;
898 struct timeval command_started;
899 struct timeval command_ended;
904 * This is provided for compatibility with UnixWare only.
905 * Some of the fields may be bogus.
906 * Others may have a totally different meaning.
908 typedef struct dpt_scsi_ha {
909 u_int32_t ha_state; /* Operational state */
910 u_int8_t ha_id[MAX_CHANNELS]; /* Host adapter SCSI ids */
911 int32_t ha_base; /* Base I/O address */
912 int ha_max_jobs; /* Max number of Active Jobs */
913 int ha_cache:2; /* Cache parameters */
914 int ha_cachesize:30; /* In meg, only if cache present*/
915 int ha_nbus; /* Number Of Busses on HBA */
916 int ha_ntargets; /* Number Of Targets Supported */
917 int ha_nluns; /* Number Of LUNs Supported */
918 int ha_tshift; /* Shift value for target */
919 int ha_bshift; /* Shift value for bus */
920 int ha_npend; /* # of jobs sent to HBA */
921 int ha_active_jobs; /* Number Of Active Jobs */
922 char ha_fw_version[4]; /* Firmware Revision Level */
923 void *ha_ccb; /* Controller command blocks */
924 void *ha_cblist; /* Command block free list */
925 void *ha_dev; /* Logical unit queues */
926 void *ha_StPkt_lock; /* Status Packet Lock */
927 void *ha_ccb_lock; /* CCB Lock */
928 void *ha_LuQWaiting; /* Lu Queue Waiting List */
929 void *ha_QWait_lock; /* Device Que Waiting Lock */
930 int ha_QWait_opri; /* Saved Priority Level */
931 #ifdef DPT_TARGET_MODE
932 dpt_ccb_t *target_ccb[MAX_CHANNELS]; /* Command block waiting writebuf */
937 * Describe the Inquiry Data returned on Page 0 from the Adapter. The
938 * Page C1 Inquiry Data is described in the DptConfig_t structure above.
943 u_int8_t otherData[6];
945 u_int8_t modelNum[16];
946 u_int8_t firmware[4];
947 u_int8_t protocol[4];
951 * sp_EOC is not `safe', so I will check sp_Messages[0] instead!
953 #define DptStat_BUSY(x) ((x)->sp_ID_Message)
954 #define DptStat_Reset_BUSY(x) \
955 ((x)->msg[0] = 0xA5, (x)->EOC = 0, \
956 (x)->ccb_busaddr = ~0)
958 #ifdef DPT_MEASURE_PERFORMANCE
959 #define BIG_ENOUGH 0x8fffffff
960 typedef struct dpt_metrics {
961 u_int32_t command_count[256]; /* We assume MAX 256 SCSI commands */
962 u_int32_t max_command_time[256];
963 u_int32_t min_command_time[256];
965 u_int32_t min_intr_time;
966 u_int32_t max_intr_time;
967 u_int32_t aborted_interrupts;
968 u_int32_t spurious_interrupts;
970 u_int32_t max_waiting_count;
971 u_int32_t max_submit_count;
972 u_int32_t max_complete_count;
974 u_int32_t min_waiting_time;
975 u_int32_t min_submit_time;
976 u_int32_t min_complete_time;
978 u_int32_t max_waiting_time;
979 u_int32_t max_submit_time;
980 u_int32_t max_complete_time;
982 u_int32_t command_collisions;
983 u_int32_t command_too_busy;
984 u_int32_t max_eata_tries;
985 u_int32_t min_eata_tries;
987 u_int32_t read_by_size_count[10];
988 u_int32_t write_by_size_count[10];
989 u_int32_t read_by_size_min_time[10];
990 u_int32_t read_by_size_max_time[10];
991 u_int32_t write_by_size_min_time[10];
992 u_int32_t write_by_size_max_time[10];
1002 #define SIZE_BIGGER 8
1003 #define SIZE_OTHER 9
1005 struct timeval intr_started;
1007 u_int32_t warm_starts;
1008 u_int32_t cold_boots;
1012 struct sg_map_node {
1013 bus_dmamap_t sg_dmamap;
1014 bus_addr_t sg_physaddr;
1016 SLIST_ENTRY(sg_map_node) links;
1019 /* Main state machine and interface structure */
1020 typedef struct dpt_softc {
1023 struct resource * io_res;
1028 struct resource * irq_res;
1032 struct resource * drq_res;
1035 bus_space_tag_t tag;
1036 bus_space_handle_t bsh;
1037 bus_dma_tag_t buffer_dmat; /* dmat for buffer I/O */
1038 dpt_ccb_t *dpt_dccbs; /* Array of dpt ccbs */
1039 bus_addr_t dpt_ccb_busbase; /* phys base address of array */
1040 bus_addr_t dpt_ccb_busend; /* phys end address of array */
1042 u_int32_t handle_interrupts :1, /* Are we ready for real work? */
1043 target_mode_enabled :1,
1044 resource_shortage :1,
1053 SLIST_HEAD(, dpt_ccb) free_dccb_list;
1054 LIST_HEAD(, ccb_hdr) pending_ccb_list;
1056 bus_dma_tag_t parent_dmat;
1057 bus_dma_tag_t dccb_dmat; /* dmat for our ccb array */
1058 bus_dmamap_t dccb_dmamap;
1059 bus_dma_tag_t sg_dmat; /* dmat for our sg maps */
1060 SLIST_HEAD(, sg_map_node) sg_maps;
1062 struct cam_sim *sims[MAX_CHANNELS];
1063 struct cam_path *paths[MAX_CHANNELS];
1064 u_int32_t commands_processed;
1065 u_int32_t lost_interrupts;
1068 * These three parameters can be used to allow for wide scsi, and
1069 * for host adapters that support multiple busses. The first two
1070 * should be set to 1 more than the actual max id or lun (i.e. 8 for
1073 * There is a FAT assumption here; We assume that these will never
1074 * exceed MAX_CHANNELS, MAX_TARGETS, MAX_LUNS
1076 u_int channels; /* # of avail scsi chan. */
1081 u_int8_t dma_channel;
1083 TAILQ_ENTRY(dpt_softc) links;
1088 * Every object on a unit can have a receiver, if it treats
1089 * us as a target. We do that so that separate and independant
1090 * clients can consume received buffers.
1093 #define DPT_RW_BUFFER_SIZE (8 * 1024)
1094 dpt_ccb_t *target_ccb[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1095 u_int8_t *rw_buffer[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1096 dpt_rec_buff buffer_receiver[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1098 dpt_inq_t board_data;
1099 u_int8_t EATA_revision;
1100 u_int8_t bustype; /* bustype of HBA */
1101 u_int32_t state; /* state of HBA */
1103 #define DPT_HA_FREE 0x00000000
1104 #define DPT_HA_OK 0x00000000
1105 #define DPT_HA_NO_TIMEOUT 0x00000000
1106 #define DPT_HA_BUSY 0x00000001
1107 #define DPT_HA_TIMEOUT 0x00000002
1108 #define DPT_HA_RESET 0x00000004
1109 #define DPT_HA_LOCKED 0x00000008
1110 #define DPT_HA_ABORTED 0x00000010
1111 #define DPT_HA_CONTROL_ACTIVE 0x00000020
1112 #define DPT_HA_SHUTDOWN_ACTIVE 0x00000040
1113 #define DPT_HA_COMMAND_ACTIVE 0x00000080
1114 #define DPT_HA_QUIET 0x00000100
1117 #define DPT_LOST_IRQ_SET 0x10000000
1118 #define DPT_LOST_IRQ_ACTIVE 0x20000000
1121 #ifdef DPT_HANDLE_TIMEOUTS
1122 #define DPT_HA_TIMEOUTS_SET 0x40000000
1123 #define DPT_HA_TIMEOUTS_ACTIVE 0x80000000
1126 u_int8_t primary; /* true if primary */
1128 u_int8_t more_support :1, /* HBA supports MORE flag */
1129 immediate_support :1, /* HBA supports IMMEDIATE */
1130 broken_INQUIRY :1, /* EISA HBA w/broken INQUIRY */
1133 u_int8_t resetlevel[MAX_CHANNELS];
1134 u_int32_t last_ccb; /* Last used ccb */
1135 u_int32_t cplen; /* size of CP in words */
1136 u_int16_t cppadlen; /* pad length of cp */
1137 u_int16_t max_dccbs;
1138 u_int16_t sgsize; /* Entries in the SG list */
1139 u_int8_t hostid[MAX_CHANNELS]; /* SCSI ID of HBA */
1140 u_int32_t cache_size;
1142 volatile dpt_sp_t *sp; /* status packet */
1143 /* Copied from the status packet during interrupt handler */
1145 u_int8_t scsi_stat; /* Target SCSI status */
1146 u_int32_t residue_len; /* Number of bytes not transferred */
1147 bus_addr_t sp_physaddr; /* phys address of status packet */
1150 * We put ALL conditional elements at the tail for the structure.
1151 * If we do not, then userland code will crash or trash based on which
1152 * kernel it is running with.
1153 * This isi most visible with usr/sbin/dpt_softc(8)
1156 #ifdef DPT_MEASURE_PERFORMANCE
1157 dpt_perf_t performance;
1160 #ifdef DPT_RESET_HBA
1161 struct timeval last_contact;
1166 * This structure is used to pass dpt_softc contents to userland via the
1167 * ioctl DPT_IOCTL_SOFTC. The reason for this maddness, is that FreeBSD
1168 * (all BSDs ?) chose to actually assign a nasty meaning to the IOCTL word,
1169 * encoding 13 bits of it as size. As dpt_softc_t is somewhere between
1170 * 8,594 and 8,600 (depends on options), we have to copy the data to
1171 * something less than 4KB long. This siliness also solves the problem of
1172 * varying definition of dpt_softc_t, As the variants are exluded from
1175 * See dpt_softc_t above for enumerations, comments and such.
1177 typedef struct dpt_user_softc {
1179 u_int32_t handle_interrupts :1, /* Are we ready for real work? */
1180 target_mode_enabled :1,
1183 int total_ccbs_count;
1184 int free_ccbs_count;
1185 int waiting_ccbs_count;
1186 int submitted_ccbs_count;
1187 int completed_ccbs_count;
1189 u_int32_t queue_status;
1190 u_int32_t free_lock;
1191 u_int32_t waiting_lock;
1192 u_int32_t submitted_lock;
1193 u_int32_t completed_lock;
1195 u_int32_t commands_processed;
1196 u_int32_t lost_interrupts;
1203 u_int8_t *v_membase;
1204 u_int8_t *p_membase;
1207 u_int8_t dma_channel;
1209 dpt_inq_t board_data;
1210 u_int8_t EATA_revision;
1215 u_int8_t more_support :1,
1216 immediate_support :1,
1220 u_int8_t resetlevel[MAX_CHANNELS];
1224 u_int16_t queuesize;
1226 u_int8_t hostid[MAX_CHANNELS];
1227 u_int32_t cache_type :2,
1233 * These all come from dpt_scsi.c
1237 /* This function gets the current hi-res time and returns it to the caller */
1238 static __inline struct timeval
1248 * Given a minor device number, get its SCSI Unit.
1251 dpt_minor2unit(int minor)
1253 return(minor2hba(minor));
1256 dpt_softc_t *dpt_minor2softc(int minor_no);
1258 #endif /* _KERNEL */
1261 * This function substracts one timval structure from another,
1262 * Returning the result in usec.
1263 * It assumes that less than 4 billion usecs passed form start to end.
1264 * If times are sensless, ~0 is returned.
1266 static __inline u_int32_t
1267 dpt_time_delta(struct timeval start,
1270 if (start.tv_sec > end.tv_sec)
1273 if ( (start.tv_sec == end.tv_sec) && (start.tv_usec > end.tv_usec) )
1276 return ( (end.tv_sec - start.tv_sec) * 1000000 +
1277 (end.tv_usec - start.tv_usec) );
1280 extern TAILQ_HEAD(dpt_softc_list, dpt_softc) dpt_softcs;
1282 extern int dpt_controllers_present;
1283 extern devclass_t dpt_devclass;
1286 void dpt_alloc(device_t);
1287 int dpt_detach(device_t);
1288 int dpt_alloc_resources(device_t);
1289 void dpt_release_resources(device_t);
1291 void dpt_free(struct dpt_softc *dpt);
1292 int dpt_init(struct dpt_softc *dpt);
1293 int dpt_attach(dpt_softc_t * dpt);
1294 void dpt_intr(void *arg);
1297 dpt_conf_t * dpt_pio_get_conf(u_int32_t);
1301 extern void hex_dump(u_char * data, int length,
1302 char *name, int no);
1303 extern char *i2bin(unsigned int no, int length);
1304 extern char *scsi_cmd_name(u_int8_t cmd);
1306 extern dpt_conf_t *dpt_get_conf(dpt_softc_t *dpt, u_int8_t page,
1307 u_int8_t target, u_int8_t size,
1310 extern int dpt_setup(dpt_softc_t * dpt, dpt_conf_t * conf);
1311 extern int dpt_attach(dpt_softc_t * dpt);
1312 extern void dpt_shutdown(int howto, dpt_softc_t *dpt);
1313 extern void dpt_detect_cache(dpt_softc_t *dpt);
1315 extern int dpt_user_cmd(dpt_softc_t *dpt, eata_pt_t *user_cmd,
1316 caddr_t cmdarg, int minor_no);
1318 extern u_int8_t dpt_blinking_led(dpt_softc_t *dpt);
1320 extern dpt_rb_t dpt_register_buffer(int unit, u_int8_t channel, u_int8_t target,
1321 u_int8_t lun, u_int8_t mode,
1322 u_int16_t length, u_int16_t offset,
1323 dpt_rec_buff callback, dpt_rb_op_t op);
1325 extern int dpt_send_buffer(int unit, u_int8_t channel, u_int8_t target,
1326 u_int8_t lun, u_int8_t mode, u_int16_t length,
1327 u_int16_t offset, void *data,
1328 buff_wr_done callback);
1332 void dpt_reset_performance(dpt_softc_t *dpt);