1: /*
2: * Copyright (c) 1997 by Simon Shapiro
3: * All Rights Reserved
4: *
5: * Redistribution and use in source and binary forms, with or without
6: * modification, are permitted provided that the following conditions
7: * are met:
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.
16: *
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
27: * SUCH DAMAGE.
28: *
29: */
30:
31: /*
32: *
33: * dpt.h: Definitions and constants used by the SCSI side of the DPT
34: *
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.
40: */
41:
42:
43: #ident "$FreeBSD: src/sys/dev/dpt/dpt.h,v 1.8.2.1 2000/08/07 18:48:14 peter Exp $"
44: #ident "$DragonFly: src/sys/dev/raid/dpt/dpt.h,v 1.3 2003/11/22 19:30:55 asmodai Exp $"
45:
46: #ifndef _DPT_H
47: #define _DPT_H
48:
49: #include <sys/ioccom.h>
50:
51: #define DPT_CDEV_MAJOR 88
52:
53: #undef DPT_USE_DLM_SWI
54:
55: extern u_long dpt_unit;
56:
57: #define DPT_RELEASE 1
58: #define DPT_VERSION 4
59: #define DPT_PATCH 5
60: #define DPT_MONTH 8
61: #define DPT_DAY 3
62: #define DPT_YEAR 18 /* 1998 - 1980 */
63:
64: #define DPT_CTL_RELEASE 1
65: #define DPT_CTL_VERSION 0
66: #define DPT_CTL_PATCH 6
67:
68: #ifndef PAGESIZ
69: #define PAGESIZ 4096
70: #endif
71:
72: #ifndef physaddr
73: typedef void *physaddr;
74: #endif
75:
76: #undef DPT_INQUIRE_DEVICES /* We have no buyers for this function */
77: #define DPT_SUPPORT_POLLING /* Use polled mode at boot (must be ON!) */
78: #define DPT_OPENNINGS 8 /* Commands-in-progress per device */
79:
80: #define DPT_RETRIES 5 /* Times to retry failed commands */
81: #undef DPT_DISABLE_SG
82: #define DPT_HAS_OPEN
83:
84: /* Arguments to dpt_run_queue() can be: */
85:
86: #define DPT_MAX_TARGET_MODE_BUFFER_SIZE 8192
87: #define DPT_FREE_LIST_INCREMENT 64
88: #define DPT_CMD_LEN 12
89:
90: /*
91: * How many segments do we want in a Scatter/Gather list?
92: * Some HBA's can do 16, Some 8192. Since we pre-allocate
93: * them in fixed increments, we need to put a practical limit on
94: * these. A passed parameter (from kernel boot or lkm) would help
95: */
96: #define DPT_MAX_SEGS 32
97:
98: /* Debug levels */
99:
100: #undef DPT_DEBUG_PCI
101: #undef DPT_DEBUG_INIT
102: #undef DPT_DEBUG_SETUP
103: #undef DPT_DEBUG_STATES
104: #undef DPT_DEBUG_CONFIG
105: #undef DPT_DEBUG_QUEUES
106: #undef DPT_DEBUG_SCSI_CMD
107: #undef DPT_DEBUG_SOFTINTR
108: #undef DPT_DEBUG_HARDINTR
109: #undef DPT_DEBUG_HEX_DUMPS
110: #undef DPT_DEBUG_POLLING
111: #undef DPT_DEBUG_INQUIRE
112: #undef DPT_DEBUG_COMPLETION
113: #undef DPT_DEBUG_COMPLETION_ERRORS
114: #define DPT_DEBUG_MINPHYS
115: #undef DPT_DEBUG_SG
116: #undef DPT_DEBUG_SG_SHOW_DATA
117: #undef DPT_DEBUG_SCSI_CMD_NAME
118: #undef DPT_DEBUG_CONTROL
119: #undef DPT_DEBUG_TIMEOUTS
120: #undef DPT_DEBUG_SHUTDOWN
121: #define DPT_DEBUG_USER_CMD
122:
123: /*
124: * Misc. definitions
125: */
126: #undef TRUE
127: #undef FALSE
128: #define TRUE 1
129: #define FALSE 0
130:
131: #define MAX_CHANNELS 3
132: #define MAX_TARGETS 16
133: #define MAX_LUNS 8
134:
135: /* Map minor numbers to device identity */
136: #define TARGET_MASK 0x000f
137: #define BUS_MASK 0x0030
138: #define HBA_MASK 0x01c0
139: #define LUN_MASK 0x0e00
140:
141: #define minor2target(minor) ( minor & TARGET_MASK )
142: #define minor2bus(minor) ( (minor & BUS_MASK) >> 4 )
143: #define minor2hba(minor) ( (minor & HBA_MASK) >> 6 )
144: #define minor2lun(minor) ( (minor & LUN_MASK) >> 9 )
145:
146: /*
147: * Valid values for cache_type
148: */
149: #define DPT_NO_CACHE 0
150: #define DPT_CACHE_WRITETHROUGH 1
151: #define DPT_CACHE_WRITEBACK -2
152:
153: #define min(a,b) ((a<b)?(a):(b))
154:
155: #define MAXISA 4
156: #define MAXEISA 16
157: #define MAXPCI 16
158: #define MAXIRQ 16
159: #define MAXTARGET 16
160:
161: #define IS_ISA 'I'
162: #define IS_EISA 'E'
163: #define IS_PCI 'P'
164:
165: #define BROKEN_INQUIRY 1
166:
167: #define BUSMASTER 0xff
168: #define PIO 0xfe
169:
170: #define EATA_SIGNATURE 0x41544145 /* little ENDIAN "EATA" */
171: #define DPT_BLINK_INDICATOR 0x42445054
172:
173: #define DPT_ID1 0x12
174: #define DPT_ID2 0x1
175: #define ATT_ID1 0x06
176: #define ATT_ID2 0x94
177: #define ATT_ID3 0x0
178:
179: #define NEC_ID1 0x38
180: #define NEC_ID2 0xa3
181: #define NEC_ID3 0x82
182:
183: #define MAX_PCI_DEVICES 32 /* Maximum # Of Devices Per Bus */
184: #define MAX_METHOD_2 16 /* Max Devices For Method 2 */
185: #define MAX_PCI_BUS 16 /* Maximum # Of Busses Allowed */
186:
187: #define DPT_MAX_RETRIES 2
188:
189: #define READ 0
190: #define WRITE 1
191: #define OTHER 2
192:
193: #define HD(cmd) ((hostdata *)&(cmd->host->hostdata))
194: #define CD(cmd) ((struct eata_ccb *)(cmd->host_scribble))
195: #define SD(host) ((hostdata *)&(host->hostdata))
196:
197: /*
198: * EATA Command & Register definitions
199: */
200:
201: #define PCI_REG_DPTconfig 0x40
202: #define PCI_REG_PumpModeAddress 0x44
203: #define PCI_REG_PumpModeData 0x48
204: #define PCI_REG_ConfigParam1 0x50
205: #define PCI_REG_ConfigParam2 0x54
206:
207: #define EATA_CMD_PIO_SETUPTEST 0xc6
208: #define EATA_CMD_PIO_READ_CONFIG 0xf0
209: #define EATA_CMD_PIO_SET_CONFIG 0xf1
210: #define EATA_CMD_PIO_SEND_CP 0xf2
211: #define EATA_CMD_PIO_RECEIVE_SP 0xf3
212: #define EATA_CMD_PIO_TRUNC 0xf4
213:
214: #define EATA_CMD_RESET 0xf9
215: #define EATA_COLD_BOOT 0x06 /* Last resort only! */
216:
217: #define EATA_CMD_IMMEDIATE 0xfa
218:
219: #define EATA_CMD_DMA_READ_CONFIG 0xfd
220: #define EATA_CMD_DMA_SET_CONFIG 0xfe
221: #define EATA_CMD_DMA_SEND_CP 0xff
222:
223: #define ECS_EMULATE_SENSE 0xd4
224:
225: /*
226: * Immediate Commands
227: * Beware of this enumeration. Not all commands are in sequence!
228: */
229:
230: enum {
231: EATA_GENERIC_ABORT,
232: EATA_SPECIFIC_RESET,
233: EATA_BUS_RESET,
234: EATA_SPECIFIC_ABORT,
235: EATA_QUIET_INTR,
236: EATA_SMART_ROM_DL_EN,
237: EATA_COLD_BOOT_HBA, /* Only as a last resort */
238: EATA_FORCE_IO,
239: EATA_SCSI_BUS_OFFLINE,
240: EATA_RESET_MASKED_BUS,
241: EATA_POWER_OFF_WARN
242: } dpt_immediate_cmd;
243:
244: #define HA_CTRLREG 0x206 /* control register for HBA */
245: #define HA_CTRL_DISINT 0x02 /* CTRLREG: disable interrupts */
246: #define HA_CTRL_RESCPU 0x04 /* CTRLREG: reset processo */
247: #define HA_CTRL_8HEADS 0x08 /*
248: * CTRLREG: set for drives with
249: * >=8 heads
250: * (WD1003 rudimentary :-)
251: */
252:
253: #define HA_WCOMMAND 0x07 /* command register offset */
254: #define HA_WIFC 0x06 /* immediate command offset */
255: #define HA_WCODE 0x05
256: #define HA_WCODE2 0x04
257: #define HA_WDMAADDR 0x02 /* DMA address LSB offset */
258: #define HA_RERROR 0x01 /* Error Register, offset 1 from base */
259: #define HA_RAUXSTAT 0x08 /* aux status register offset */
260: #define HA_RSTATUS 0x07 /* status register offset */
261: #define HA_RDATA 0x00 /* data register (16bit) */
262: #define HA_WDATA 0x00 /* data register (16bit) */
263:
264: #define HA_ABUSY 0x01 /* aux busy bit */
265: #define HA_AIRQ 0x02 /* aux IRQ pending bit */
266: #define HA_SERROR 0x01 /* pr. command ended in error */
267: #define HA_SMORE 0x02 /* more data soon to come */
268: #define HA_SCORR 0x04 /* datio_addra corrected */
269: #define HA_SDRQ 0x08 /* data request active */
270: #define HA_SSC 0x10 /* seek complete */
271: #define HA_SFAULT 0x20 /* write fault */
272: #define HA_SREADY 0x40 /* drive ready */
273: #define HA_SBUSY 0x80 /* drive busy */
274: #define HA_SDRDY (HA_SSC|HA_SREADY|HA_SDRQ)
275:
276: /*
277: * Message definitions
278: */
279:
280: enum {
281: HA_NO_ERROR, /* No Error */
282: HA_ERR_SEL_TO, /* Selection Timeout */
283: HA_ERR_CMD_TO, /* Command Timeout */
284: HA_SCSIBUS_RESET,
285: HA_HBA_POWER_UP, /* Initial Controller Power-up */
286: HA_UNX_BUSPHASE, /* Unexpected Bus Phase */
287: HA_UNX_BUS_FREE, /* Unexpected Bus Free */
288: HA_BUS_PARITY, /* Bus Parity Error */
289: HA_SCSI_HUNG, /* SCSI Hung */
290: HA_UNX_MSGRJCT, /* Unexpected Message Rejected */
291: HA_RESET_STUCK, /* SCSI Bus Reset Stuck */
292: HA_RSENSE_FAIL, /* Auto Request-Sense Failed */
293: HA_PARITY_ERR, /* Controller Ram Parity Error */
294: HA_CP_ABORT_NA, /* Abort Message sent to non-active cmd */
295: HA_CP_ABORTED, /* Abort Message sent to active cmd */
296: HA_CP_RESET_NA, /* Reset Message sent to non-active cmd */
297: HA_CP_RESET, /* Reset Message sent to active cmd */
298: HA_ECC_ERR, /* Controller Ram ECC Error */
299: HA_PCI_PARITY, /* PCI Parity Error */
300: HA_PCI_MABORT, /* PCI Master Abort */
301: HA_PCI_TABORT, /* PCI Target Abort */
302: HA_PCI_STABORT /* PCI Signaled Target Abort */
303: } dpt_message;
304:
305: #define HA_STATUS_MASK 0x7F
306: #define HA_IDENTIFY_MSG 0x80
307: #define HA_DISCO_RECO 0x40 /* Disconnect/Reconnect */
308:
309: #define DPT_RW_BUFF_HEART 0X00
310: #define DPT_RW_BUFF_DLM 0x02
311: #define DPT_RW_BUFF_ACCESS 0x03
312:
313: #define HA_INTR_OFF 1
314: #define HA_INTR_ON 0
315:
316: /* This is really a one-time shot through some black magic */
317: #define DPT_EATA_REVA 0x1c
318: #define DPT_EATA_REVB 0x1e
319: #define DPT_EATA_REVC 0x22
320: #define DPT_EATA_REVZ 0x24
321:
322:
323: /* IOCTL List */
324:
325: #define DPT_RW_CMD_LEN 32
326: #define DPT_RW_CMD_DUMP_SOFTC "dump softc"
327: #define DPT_RW_CMD_DUMP_SYSINFO "dump sysinfo"
328: #define DPT_RW_CMD_DUMP_METRICS "dump metrics"
329: #define DPT_RW_CMD_CLEAR_METRICS "clear metrics"
330: #define DPT_RW_CMD_SHOW_LED "show LED"
331:
332: #define DPT_IOCTL_INTERNAL_METRICS _IOR('D', 1, dpt_perf_t)
333: #define DPT_IOCTL_SOFTC _IOR('D', 2, dpt_user_softc_t)
334: #define DPT_IOCTL_SEND _IOWR('D', 3, eata_pt_t)
335: #define SDI_SEND 0x40044444 /* Observed from dptmgr */
336:
337: /*
338: * Other definitions
339: */
340:
341: #define DPT_HCP_LENGTH(page) (ntohs(*(int16_t *)(void *)(&page[2]))+4)
342: #define DPT_HCP_FIRST(page) (&page[4])
343: #define DPT_HCP_NEXT(param) (¶m[3 + param[3] + 1])
344: #define DPT_HCP_CODE(param) (ntohs(*(int16_t *)(void *)param))
345:
346:
347: /* Possible return values from dpt_register_buffer() */
348:
349: #define SCSI_TM_READ_BUFFER 0x3c
350: #define SCSI_TM_WRITE_BUFFER 0x3b
351:
352: #define SCSI_TM_MODE_MASK 0x07 /* Strip off reserved and LUN */
353: #define SCSI_TM_LUN_MASK 0xe0 /* Strip off reserved and LUN */
354:
355: typedef enum {
356: SUCCESSFULLY_REGISTERED,
357: DRIVER_DOWN,
358: ALREADY_REGISTERED,
359: REGISTERED_TO_ANOTHER,
360: NOT_REGISTERED,
361: INVALID_UNIT,
362: INVALID_SENDER,
363: INVALID_CALLBACK,
364: NO_RESOURCES
365: } dpt_rb_t;
366:
367: typedef enum {
368: REGISTER_BUFFER,
369: RELEASE_BUFFER
370: } dpt_rb_op_t;
371:
372: /*
373: * New way for completion routines to reliably copmplete processing.
374: * Should take properly typed dpt_softc_t and dpt_ccb_t,
375: * but interdependencies preclude that.
376: */
377: typedef void (*ccb_callback)(void *dpt, int bus, void *ccb);
378:
379: typedef void (*buff_wr_done)(int unit, u_int8_t channel, u_int8_t target,
380: u_int8_t lun, u_int16_t offset, u_int16_t length,
381: int result);
382:
383: typedef void (*dpt_rec_buff)(int unit, u_int8_t channel, u_int8_t target,
384: u_int8_t lun, void *buffer, u_int16_t offset,
385: u_int16_t length);
386:
387: /* HBA's Status port (register) bitmap */
388: typedef struct reg_bit { /* reading this one will clear the interrupt */
389: u_int8_t error :1, /* previous command ended in an error */
390: more :1, /* More DATA coming soon Poll BSY & DRQ (PIO) */
391: corr :1, /* data read was successfully corrected with ECC */
392: drq :1, /* data request active */
393: sc :1, /* seek complete */
394: fault :1, /* write fault */
395: ready :1, /* drive ready */
396: busy :1; /* controller busy */
397: } dpt_status_reg_t;
398:
399: /* HBA's Auxiliary status port (register) bitmap */
400: typedef struct reg_abit { /* reading this won't clear the interrupt */
401: u_int8_t abusy :1, /* auxiliary busy */
402: irq :1, /* set when drive interrupt is asserted */
403: :6;
404: } dpt_aux_status_t;
405:
406: /* The EATA Register Set as a structure */
407: typedef struct eata_register {
408: u_int8_t data_reg[2]; /* R, couldn't figure this one out */
409: u_int8_t cp_addr[4]; /* W, CP address register */
410: union {
411: u_int8_t command; /*
412: * W, command code:
413: * [read|set] conf, send CP
414: */
415: struct reg_bit status; /* R, see register_bit1 */
416: u_int8_t statusbyte;
417: } ovr;
418: struct reg_abit aux_stat; /* R, see register_bit2 */
419: } eata_reg_t;
420:
421: /*
422: * Holds the results of a READ_CONFIGURATION command
423: * Beware of data items which are larger than 1 byte.
424: * these come from the DPT in network order.
425: * On an Intel ``CPU'' they will be upside down and backwards!
426: * The dpt_get_conf function is normally responsible for flipping
427: * Everything back.
428: */
429: typedef struct get_conf { /* Read Configuration Array */
430: union {
431: struct {
432: u_int8_t foo_DevType;
433: u_int8_t foo_PageCode;
434: u_int8_t foo_Reserved0;
435: u_int8_t foo_len;
436: } foo;
437: u_int32_t foo_length; /* Should return 0x22, 0x24, etc */
438: } bar;
439: #define gcs_length bar.foo_length
440: #define gcs_PageCode bar.foo.foo_DevType
441: #define gcs_reserved0 bar.foo.foo_Reserved0
442: #define gcs_len bar.foo.foo_len
443:
444: u_int32_t signature; /* Signature MUST be "EATA". ntohl()`ed */
445:
446: u_int8_t version2 :4,
447: version :4; /* EATA Version level */
448:
449: u_int8_t OCS_enabled :1, /* Overlap Command Support enabled */
450: TAR_support :1, /* SCSI Target Mode supported */
451: TRNXFR :1, /* Truncate Transfer Cmd Used in PIO Mode */
452: MORE_support:1, /* MORE supported (PIO Mode Only) */
453: DMA_support :1, /* DMA supported */
454: DMA_valid :1, /* DRQ value in Byte 30 is valid */
455: ATA :1, /* ATA device connected (not supported) */
456: HAA_valid :1; /* Hostadapter Address is valid */
457:
458: u_int16_t cppadlen; /*
459: * Number of pad bytes send after CD data set
460: * to zero for DMA commands. Ntohl()`ed
461: */
462: u_int8_t scsi_idS; /* SCSI ID of controller 2-0 Byte 0 res. */
463: u_int8_t scsi_id2; /* If not, zero is returned */
464: u_int8_t scsi_id1;
465: u_int8_t scsi_id0;
466: u_int32_t cplen; /* CP length: number of valid cp bytes */
467:
468: u_int32_t splen; /* Returned bytes for a received SP command */
469: u_int16_t queuesiz; /* max number of queueable CPs */
470:
471: u_int16_t dummy;
472: u_int16_t SGsiz; /* max number of SG table entrie */
473:
474: u_int8_t IRQ :4,/* IRQ used this HBA */
475: IRQ_TR :1,/* IRQ Trigger: 0=edge, 1=level */
476: SECOND :1,/* This is a secondary controller */
477: DMA_channel:2;/* DRQ index, DRQ is 2comp of DRQX */
478:
479: u_int8_t sync; /* 0-7 sync active bitmask (deprecated) */
480: u_int8_t DSBLE :1, /* ISA i/o addressing is disabled */
481: FORCADR :1, /* i/o address has been forced */
482: SG_64K :1,
483: SG_UAE :1,
484: :4;
485:
486: u_int8_t MAX_ID :5, /* Max number of SCSI target IDs */
487: MAX_CHAN :3; /* Number of SCSI busses on HBA */
488:
489: u_int8_t MAX_LUN; /* Max number of LUNs */
490: u_int8_t :3,
491: AUTOTRM :1,
492: M1_inst :1,
493: ID_qest :1, /* Raidnum ID is questionable */
494: is_PCI :1, /* HBA is PCI */
495: is_EISA :1; /* HBA is EISA */
496:
497: u_int8_t RAIDNUM; /* unique HBA identifier */
498: u_int8_t unused[4]; /* When doing PIO, you GET 512 bytes */
499:
500: /* >>------>> End of The DPT structure <<------<< */
501:
502: u_int32_t length; /* True length, after ntohl conversion */
503: } dpt_conf_t;
504:
505: /* Scatter-Gather list entry */
506: typedef struct dpt_sg_segment {
507: u_int32_t seg_addr; /* All fields in network byte order */
508: u_int32_t seg_len;
509: } dpt_sg_t;
510:
511:
512: /* Status Packet */
513: typedef struct eata_sp {
514: u_int8_t hba_stat :7, /* HBA status */
515: EOC :1; /* True if command finished */
516:
517: u_int8_t scsi_stat; /* Target SCSI status */
518:
519: u_int8_t reserved[2];
520:
521: u_int32_t residue_len; /* Number of bytes not transferred */
522:
523: u_int32_t ccb_busaddr;
524:
525: u_int8_t sp_ID_Message;
526: u_int8_t sp_Que_Message;
527: u_int8_t sp_Tag_Message;
528: u_int8_t msg[9];
529: } dpt_sp_t;
530:
531: /*
532: * A strange collection of O/S-Hardware releated bits and pieces.
533: * Used by the dpt_ioctl() entry point to return DPT_SYSINFO command.
534: */
535: typedef struct dpt_drive_parameters {
536: u_int16_t cylinders; /* Up to 1024 */
537: u_int8_t heads; /* Up to 255 */
538: u_int8_t sectors; /* Up to 63 */
539: } dpt_drive_t;
540:
541: typedef struct driveParam_S driveParam_T;
542:
543: #define SI_CMOS_Valid 0x0001
544: #define SI_NumDrivesValid 0x0002
545: #define SI_ProcessorValid 0x0004
546: #define SI_MemorySizeValid 0x0008
547: #define SI_DriveParamsValid 0x0010
548: #define SI_SmartROMverValid 0x0020
549: #define SI_OSversionValid 0x0040
550: #define SI_OSspecificValid 0x0080
551: #define SI_BusTypeValid 0x0100
552:
553: #define SI_ALL_VALID 0x0FFF
554: #define SI_NO_SmartROM 0x8000
555:
556: #define SI_ISA_BUS 0x00
557: #define SI_MCA_BUS 0x01
558: #define SI_EISA_BUS 0x02
559: #define SI_PCI_BUS 0x04
560:
561: #define HBA_BUS_ISA 0x00
562: #define HBA_BUS_EISA 0x01
563: #define HBA_BUS_PCI 0x02
564:
565: typedef struct dpt_sysinfo {
566: u_int8_t drive0CMOS; /* CMOS Drive 0 Type */
567: u_int8_t drive1CMOS; /* CMOS Drive 1 Type */
568: u_int8_t numDrives; /* 0040:0075 contents */
569: u_int8_t processorFamily; /* Same as DPTSIG definition */
570: u_int8_t processorType; /* Same as DPTSIG definition */
571: u_int8_t smartROMMajorVersion;
572: u_int8_t smartROMMinorVersion; /* SmartROM version */
573: u_int8_t smartROMRevision;
574: u_int16_t flags; /* See bit definitions above */
575: u_int16_t conventionalMemSize; /* in KB */
576: u_int32_t extendedMemSize; /* in KB */
577: u_int32_t osType; /* Same as DPTSIG definition */
578: u_int8_t osMajorVersion;
579: u_int8_t osMinorVersion; /* The OS version */
580: u_int8_t osRevision;
581: u_int8_t osSubRevision;
582: u_int8_t busType; /* See defininitions above */
583: u_int8_t pad[3]; /* For alignment */
584: dpt_drive_t drives[16]; /* SmartROM Logical Drives */
585: } dpt_sysinfo_t;
586:
587: /* SEND_COMMAND packet structure */
588: typedef struct eata_ccb {
589: u_int8_t SCSI_Reset :1, /* Cause a SCSI Bus reset on the cmd */
590: HBA_Init :1, /* Cause Controller to reinitialize */
591: Auto_Req_Sen :1, /* Do Auto Request Sense on errors */
592: scatter :1, /* Data Ptr points to a SG Packet */
593: Quick :1, /* Set this one for NO Status PAcket */
594: Interpret :1, /* Interpret the SCSI cdb for own use */
595: DataOut :1, /* Data Out phase with command */
596: DataIn :1; /* Data In phase with command */
597:
598: u_int8_t reqlen; /* Request Sense Length, if Auto_Req_Sen=1 */
599: u_int8_t unused[3];
600: u_int8_t FWNEST :1, /* send cmd to phys RAID component */
601: unused2 :7;
602:
603: u_int8_t Phsunit :1, /* physical unit on mirrored pair */
604: I_AT :1, /* inhibit address translation */
605: Disable_Cache :1, /* HBA inhibit caching */
606: :5;
607:
608: u_int8_t cp_id :5, /* SCSI Device ID of target */
609: cp_channel :3; /* SCSI Channel # of HBA */
610:
611: u_int8_t cp_LUN :5,
612: cp_luntar :1, /* CP is for target ROUTINE */
613: cp_dispri :1, /* Grant disconnect privilege */
614: cp_identify :1; /* Always TRUE */
615:
616: u_int8_t cp_msg[3]; /* Message bytes 0-3 */
617:
618: union {
619: struct {
620: u_int8_t x_scsi_cmd; /* Partial SCSI CDB def */
621:
622: u_int8_t x_extent :1,
623: x_bytchk :1,
624: x_reladr :1,
625: x_cmplst :1,
626: x_fmtdata :1,
627: x_lun :3;
628:
629: u_int8_t x_page;
630: u_int8_t reserved4;
631: u_int8_t x_len;
632: u_int8_t x_link :1;
633: u_int8_t x_flag :1;
634: u_int8_t reserved5 :4;
635: u_int8_t x_vendor :2;
636: } x;
637: u_int8_t z[12]; /* Command Descriptor Block (= 12) */
638: } cp_w;
639:
640: #define cp_cdb cp_w.z
641: #define cp_scsi_cmd cp_w.x.x_scsi_cmd
642: #define cp_extent cp_w.x.x_extent
643: #define cp_lun cp_w.x.x_lun
644: #define cp_page cp_w.x.x_page
645: #define cp_len cp_w.x.x_len
646:
647: #define MULTIFUNCTION_CMD 0x0e /* SCSI Multi Function Cmd */
648: #define BUS_QUIET 0x04 /* Quite Scsi Bus Code */
649: #define BUS_UNQUIET 0x05 /* Un Quiet Scsi Bus Code */
650:
651: u_int32_t cp_datalen; /*
652: * Data Transfer Length. If scatter=1 len (IN
653: * BYTES!) of the S/G array
654: */
655:
656: u_int32_t cp_busaddr; /* Unique identifier. Busaddr works well */
657: u_int32_t cp_dataDMA; /*
658: * Data Address, if scatter=1 then it is the
659: * address of scatter packet
660: */
661: u_int32_t cp_statDMA; /* address for Status Packet */
662: u_int32_t cp_reqDMA; /*
663: * Request Sense Address, used if CP command
664: * ends with error
665: */
666: u_int8_t CP_OpCode;
667:
668: } eata_ccb_t;
669:
670: /*
671: * DPT Signature Structure.
672: * Used by /dev/dpt to directly pass commands to the HBA
673: * We have more information here than we care for...
674: */
675:
676: /* Current Signature Version - sigBYTE dsSigVersion; */
677: #define SIG_VERSION 1
678:
679: /*
680: * Processor Family - sigBYTE dsProcessorFamily; DISTINCT VALUE
681: *
682: * What type of processor the file is meant to run on.
683: * This will let us know whether to read sigWORDs as high/low or low/high.
684: */
685: #define PROC_INTEL 0x00 /* Intel 80x86 */
686: #define PROC_MOTOROLA 0x01 /* Motorola 68K */
687: #define PROC_MIPS4000 0x02 /* MIPS RISC 4000 */
688: #define PROC_ALPHA 0x03 /* DEC Alpha */
689:
690: /*
691: * Specific Minimim Processor - sigBYTE dsProcessor; FLAG BITS
692: *
693: * Different bit definitions dependent on processor_family
694: */
695:
696: /* PROC_INTEL: */
697: #define PROC_8086 0x01 /* Intel 8086 */
698: #define PROC_286 0x02 /* Intel 80286 */
699: #define PROC_386 0x04 /* Intel 80386 */
700: #define PROC_486 0x08 /* Intel 80486 */
701: #define PROC_PENTIUM 0x10 /* Intel 586 aka P5 aka Pentium */
702: #define PROC_P6 0x20 /* Intel 686 aka P6 */
703:
704: /* PROC_MOTOROLA: */
705: #define PROC_68000 0x01 /* Motorola 68000 */
706: #define PROC_68020 0x02 /* Motorola 68020 */
707: #define PROC_68030 0x04 /* Motorola 68030 */
708: #define PROC_68040 0x08 /* Motorola 68040 */
709:
710: /* Filetype - sigBYTE dsFiletype; DISTINCT VALUES */
711: #define FT_EXECUTABLE 0 /* Executable Program */
712: #define FT_SCRIPT 1 /* Script/Batch File??? */
713: #define FT_HBADRVR 2 /* HBA Driver */
714: #define FT_OTHERDRVR 3 /* Other Driver */
715: #define FT_IFS 4 /* Installable Filesystem Driver */
716: #define FT_ENGINE 5 /* DPT Engine */
717: #define FT_COMPDRVR 6 /* Compressed Driver Disk */
718: #define FT_LANGUAGE 7 /* Foreign Language file */
719: #define FT_FIRMWARE 8 /* Downloadable or actual Firmware */
720: #define FT_COMMMODL 9 /* Communications Module */
721: #define FT_INT13 10 /* INT 13 style HBA Driver */
722: #define FT_HELPFILE 11 /* Help file */
723: #define FT_LOGGER 12 /* Event Logger */
724: #define FT_INSTALL 13 /* An Install Program */
725: #define FT_LIBRARY 14 /* Storage Manager Real-Mode Calls */
726: #define FT_RESOURCE 15 /* Storage Manager Resource File */
727: #define FT_MODEM_DB 16 /* Storage Manager Modem Database */
728:
729: /* Filetype flags - sigBYTE dsFiletypeFlags; FLAG BITS */
730: #define FTF_DLL 0x01 /* Dynamic Link Library */
731: #define FTF_NLM 0x02 /* Netware Loadable Module */
732: #define FTF_OVERLAYS 0x04 /* Uses overlays */
733: #define FTF_DEBUG 0x08 /* Debug version */
734: #define FTF_TSR 0x10 /* TSR */
735: #define FTF_SYS 0x20 /* DOS Lodable driver */
736: #define FTF_PROTECTED 0x40 /* Runs in protected mode */
737: #define FTF_APP_SPEC 0x80 /* Application Specific */
738:
739: /* OEM - sigBYTE dsOEM; DISTINCT VALUES */
740: #define OEM_DPT 0 /* DPT */
741: #define OEM_ATT 1 /* ATT */
742: #define OEM_NEC 2 /* NEC */
743: #define OEM_ALPHA 3 /* Alphatronix */
744: #define OEM_AST 4 /* AST */
745: #define OEM_OLIVETTI 5 /* Olivetti */
746: #define OEM_SNI 6 /* Siemens/Nixdorf */
747:
748: /* Operating System - sigLONG dsOS; FLAG BITS */
749: #define OS_DOS 0x00000001 /* PC/MS-DOS */
750: #define OS_WINDOWS 0x00000002 /* Microsoft Windows 3.x */
751: #define OS_WINDOWS_NT 0x00000004 /* Microsoft Windows NT */
752: #define OS_OS2M 0x00000008 /* OS/2 1.2.x,MS 1.3.0,IBM 1.3.x */
753: #define OS_OS2L 0x00000010 /* Microsoft OS/2 1.301 - LADDR */
754: #define OS_OS22x 0x00000020 /* IBM OS/2 2.x */
755: #define OS_NW286 0x00000040 /* Novell NetWare 286 */
756: #define OS_NW386 0x00000080 /* Novell NetWare 386 */
757: #define OS_GEN_UNIX 0x00000100 /* Generic Unix */
758: #define OS_SCO_UNIX 0x00000200 /* SCO Unix */
759: #define OS_ATT_UNIX 0x00000400 /* ATT Unix */
760: #define OS_UNIXWARE 0x00000800 /* UnixWare Unix */
761: #define OS_INT_UNIX 0x00001000 /* Interactive Unix */
762: #define OS_SOLARIS 0x00002000 /* SunSoft Solaris */
763: #define OS_QN 0x00004000 /* QNX for Tom Moch */
764: #define OS_NEXTSTEP 0x00008000 /* NeXTSTEP */
765: #define OS_BANYAN 0x00010000 /* Banyan Vines */
766: #define OS_OLIVETTI_UNIX 0x00020000 /* Olivetti Unix */
767: #define OS_FREEBSD 0x00040000 /* FreeBSD 2.2 and later */
768: #define OS_OTHER 0x80000000 /* Other */
769:
770: /* Capabilities - sigWORD dsCapabilities; FLAG BITS */
771: #define CAP_RAID0 0x0001 /* RAID-0 */
772: #define CAP_RAID1 0x0002 /* RAID-1 */
773: #define CAP_RAID3 0x0004 /* RAID-3 */
774: #define CAP_RAID5 0x0008 /* RAID-5 */
775: #define CAP_SPAN 0x0010 /* Spanning */
776: #define CAP_PASS 0x0020 /* Provides passthrough */
777: #define CAP_OVERLAP 0x0040 /* Passthrough supports overlapped commands */
778: #define CAP_ASPI 0x0080 /* Supports ASPI Command Requests */
779: #define CAP_ABOVE16MB 0x0100 /* ISA Driver supports greater than 16MB */
780: #define CAP_EXTEND 0x8000 /* Extended info appears after description */
781:
782: /* Devices Supported - sigWORD dsDeviceSupp; FLAG BITS */
783: #define DEV_DASD 0x0001 /* DASD (hard drives) */
784: #define DEV_TAPE 0x0002 /* Tape drives */
785: #define DEV_PRINTER 0x0004 /* Printers */
786: #define DEV_PROC 0x0008 /* Processors */
787: #define DEV_WORM 0x0010 /* WORM drives */
788: #define DEV_CDROM 0x0020 /* CD-ROM drives */
789: #define DEV_SCANNER 0x0040 /* Scanners */
790: #define DEV_OPTICAL 0x0080 /* Optical Drives */
791: #define DEV_JUKEBOX 0x0100 /* Jukebox */
792: #define DEV_COMM 0x0200 /* Communications Devices */
793: #define DEV_OTHER 0x0400 /* Other Devices */
794: #define DEV_ALL 0xFFFF /* All SCSI Devices */
795:
796: /* Adapters Families Supported - sigWORD dsAdapterSupp; FLAG BITS */
797: #define ADF_2001 0x0001 /* PM2001 */
798: #define ADF_2012A 0x0002 /* PM2012A */
799: #define ADF_PLUS_ISA 0x0004 /* PM2011,PM2021 */
800: #define ADF_PLUS_EISA 0x0008 /* PM2012B,PM2022 */
801: #define ADF_SC3_ISA 0x0010 /* PM2021 */
802: #define ADF_SC3_EISA 0x0020 /* PM2022,PM2122, etc */
803: #define ADF_SC3_PCI 0x0040 /* SmartCache III PCI */
804: #define ADF_SC4_ISA 0x0080 /* SmartCache IV ISA */
805: #define ADF_SC4_EISA 0x0100 /* SmartCache IV EISA */
806: #define ADF_SC4_PCI 0x0200 /* SmartCache IV PCI */
807: #define ADF_ALL_MASTER 0xFFFE /* All bus mastering */
808: #define ADF_ALL_CACHE 0xFFFC /* All caching */
809: #define ADF_ALL 0xFFFF /* ALL DPT adapters */
810:
811: /* Application - sigWORD dsApplication; FLAG BITS */
812: #define APP_DPTMGR 0x0001 /* DPT Storage Manager */
813: #define APP_ENGINE 0x0002 /* DPT Engine */
814: #define APP_SYTOS 0x0004 /* Sytron Sytos Plus */
815: #define APP_CHEYENNE 0x0008 /* Cheyenne ARCServe + ARCSolo */
816: #define APP_MSCDEX 0x0010 /* Microsoft CD-ROM extensions */
817: #define APP_NOVABACK 0x0020 /* NovaStor Novaback */
818: #define APP_AIM 0x0040 /* Archive Information Manager */
819:
820: /* Requirements - sigBYTE dsRequirements; FLAG BITS */
821: #define REQ_SMARTROM 0x01 /* Requires SmartROM to be present */
822: #define REQ_DPTDDL 0x02 /* Requires DPTDDL.SYS to be loaded */
823: #define REQ_HBA_DRIVER 0x04 /* Requires an HBA driver to be loaded */
824: #define REQ_ASPI_TRAN 0x08 /* Requires an ASPI Transport Modules */
825: #define REQ_ENGINE 0x10 /* Requires a DPT Engine to be loaded */
826: #define REQ_COMM_ENG 0x20 /* Requires a DPT Communications Engine */
827:
828: typedef struct dpt_sig {
829: char dsSignature[6]; /* ALWAYS "dPtSiG" */
830: u_int8_t SigVersion; /* signature version (currently 1) */
831: u_int8_t ProcessorFamily; /* what type of processor */
832: u_int8_t Processor; /* precise processor */
833: u_int8_t Filetype; /* type of file */
834: u_int8_t FiletypeFlags; /* flags to specify load type, etc. */
835: u_int8_t OEM; /* OEM file was created for */
836: u_int32_t OS; /* which Operating systems */
837: u_int16_t Capabilities; /* RAID levels, etc. */
838: u_int16_t DeviceSupp; /* Types of SCSI devices supported */
839: u_int16_t AdapterSupp; /* DPT adapter families supported */
840: u_int16_t Application; /* applications file is for */
841: u_int8_t Requirements; /* Other driver dependencies */
842: u_int8_t Version; /* 1 */
843: u_int8_t Revision; /* 'J' */
844: u_int8_t SubRevision; /* '9', ' ' if N/A */
845: u_int8_t Month; /* creation month */
846: u_int8_t Day; /* creation day */
847: u_int8_t Year; /* creation year since 1980 */
848: char *Description; /* description (NULL terminated) */
849: } dpt_sig_t;
850:
851: /* 32 bytes minimum - with no description. Put NULL at description[0] */
852: /* 81 bytes maximum - with 49 character description plus NULL. */
853:
854: /* This line added at Roycroft's request */
855: /* Microsoft's NT compiler gets confused if you do a pack and don't */
856: /* restore it. */
857: typedef struct eata_pass_through {
858: u_int8_t eataID[4];
859: u_int32_t command;
860:
861: #define EATAUSRCMD (('D'<<8)|65) /* EATA PassThrough Command */
862: #define DPT_SIGNATURE (('D'<<8)|67) /* Get Signature Structure */
863: #define DPT_NUMCTRLS (('D'<<8)|68) /* Get Number Of DPT Adapters */
864: #define DPT_CTRLINFO (('D'<<8)|69) /* Get Adapter Info Structure */
865: #define DPT_SYSINFO (('D'<<8)|72) /* Get System Info Structure */
866: #define DPT_BLINKLED (('D'<<8)|75) /* Get The BlinkLED Status */
867:
868: u_int8_t *command_buffer;
869: eata_ccb_t command_packet;
870: u_int32_t timeout;
871: u_int8_t host_status;
872: u_int8_t target_status;
873: u_int8_t retries;
874: } eata_pt_t;
875:
876: typedef enum {
877: DCCB_FREE = 0x00,
878: DCCB_ACTIVE = 0x01,
879: DCCB_RELEASE_SIMQ = 0x02
880: } dccb_state;
881:
882: typedef struct dpt_ccb {
883: eata_ccb_t eata_ccb;
884: bus_dmamap_t dmamap;
885: dpt_sg_t *sg_list;
886: u_int32_t sg_busaddr;
887: dccb_state state;
888: union ccb *ccb;
889: struct scsi_sense_data sense_data;
890: u_int8_t tag;
891: u_int8_t retries;
892: u_int8_t status; /* status of this queueslot */
893: u_int8_t *cmd; /* address of cmd */
894:
895: u_int32_t transaction_id;
896: u_int32_t result;
897: caddr_t data;
898: SLIST_ENTRY(dpt_ccb) links;
899:
900: #ifdef DPT_MEASURE_PERFORMANCE
901: u_int32_t submitted_time;
902: struct timeval command_started;
903: struct timeval command_ended;
904: #endif
905: } dpt_ccb_t;
906:
907: /*
908: * This is provided for compatibility with UnixWare only.
909: * Some of the fields may be bogus.
910: * Others may have a totally different meaning.
911: */
912: typedef struct dpt_scsi_ha {
913: u_int32_t ha_state; /* Operational state */
914: u_int8_t ha_id[MAX_CHANNELS]; /* Host adapter SCSI ids */
915: int32_t ha_base; /* Base I/O address */
916: int ha_max_jobs; /* Max number of Active Jobs */
917: int ha_cache:2; /* Cache parameters */
918: int ha_cachesize:30; /* In meg, only if cache present*/
919: int ha_nbus; /* Number Of Busses on HBA */
920: int ha_ntargets; /* Number Of Targets Supported */
921: int ha_nluns; /* Number Of LUNs Supported */
922: int ha_tshift; /* Shift value for target */
923: int ha_bshift; /* Shift value for bus */
924: int ha_npend; /* # of jobs sent to HBA */
925: int ha_active_jobs; /* Number Of Active Jobs */
926: char ha_fw_version[4]; /* Firmware Revision Level */
927: void *ha_ccb; /* Controller command blocks */
928: void *ha_cblist; /* Command block free list */
929: void *ha_dev; /* Logical unit queues */
930: void *ha_StPkt_lock; /* Status Packet Lock */
931: void *ha_ccb_lock; /* CCB Lock */
932: void *ha_LuQWaiting; /* Lu Queue Waiting List */
933: void *ha_QWait_lock; /* Device Que Waiting Lock */
934: int ha_QWait_opri; /* Saved Priority Level */
935: #ifdef DPT_TARGET_MODE
936: dpt_ccb_t *target_ccb[MAX_CHANNELS]; /* Command block waiting writebuf */
937: #endif
938: } dpt_compat_ha_t;
939:
940: /*
941: * Describe the Inquiry Data returned on Page 0 from the Adapter. The
942: * Page C1 Inquiry Data is described in the DptConfig_t structure above.
943: */
944: typedef struct {
945: u_int8_t deviceType;
946: u_int8_t rm_dtq;
947: u_int8_t otherData[6];
948: u_int8_t vendor[8];
949: u_int8_t modelNum[16];
950: u_int8_t firmware[4];
951: u_int8_t protocol[4];
952: } dpt_inq_t;
953:
954: /*
955: * sp_EOC is not `safe', so I will check sp_Messages[0] instead!
956: */
957: #define DptStat_BUSY(x) ((x)->sp_ID_Message)
958: #define DptStat_Reset_BUSY(x) \
959: ((x)->msg[0] = 0xA5, (x)->EOC = 0, \
960: (x)->ccb_busaddr = ~0)
961:
962: #ifdef DPT_MEASURE_PERFORMANCE
963: #define BIG_ENOUGH 0x8fffffff
964: typedef struct dpt_metrics {
965: u_int32_t command_count[256]; /* We assume MAX 256 SCSI commands */
966: u_int32_t max_command_time[256];
967: u_int32_t min_command_time[256];
968:
969: u_int32_t min_intr_time;
970: u_int32_t max_intr_time;
971: u_int32_t aborted_interrupts;
972: u_int32_t spurious_interrupts;
973:
974: u_int32_t max_waiting_count;
975: u_int32_t max_submit_count;
976: u_int32_t max_complete_count;
977:
978: u_int32_t min_waiting_time;
979: u_int32_t min_submit_time;
980: u_int32_t min_complete_time;
981:
982: u_int32_t max_waiting_time;
983: u_int32_t max_submit_time;
984: u_int32_t max_complete_time;
985:
986: u_int32_t command_collisions;
987: u_int32_t command_too_busy;
988: u_int32_t max_eata_tries;
989: u_int32_t min_eata_tries;
990:
991: u_int32_t read_by_size_count[10];
992: u_int32_t write_by_size_count[10];
993: u_int32_t read_by_size_min_time[10];
994: u_int32_t read_by_size_max_time[10];
995: u_int32_t write_by_size_min_time[10];
996: u_int32_t write_by_size_max_time[10];
997:
998: #define SIZE_512 0
999: #define SIZE_1K 1
1000: #define SIZE_2K 2
1001: #define SIZE_4K 3
1002: #define SIZE_8K 4
1003: #define SIZE_16K 5
1004: #define SIZE_32K 6
1005: #define SIZE_64K 7
1006: #define SIZE_BIGGER 8
1007: #define SIZE_OTHER 9
1008:
1009: struct timeval intr_started;
1010:
1011: u_int32_t warm_starts;
1012: u_int32_t cold_boots;
1013: } dpt_perf_t;
1014: #endif
1015:
1016: struct sg_map_node {
1017: bus_dmamap_t sg_dmamap;
1018: bus_addr_t sg_physaddr;
1019: dpt_sg_t* sg_vaddr;
1020: SLIST_ENTRY(sg_map_node) links;
1021: };
1022:
1023: /* Main state machine and interface structure */
1024: typedef struct dpt_softc {
1025: bus_space_tag_t tag;
1026: bus_space_handle_t bsh;
1027: bus_dma_tag_t buffer_dmat; /* dmat for buffer I/O */
1028: dpt_ccb_t *dpt_dccbs; /* Array of dpt ccbs */
1029: bus_addr_t dpt_ccb_busbase; /* phys base address of array */
1030: bus_addr_t dpt_ccb_busend; /* phys end address of array */
1031:
1032: u_int32_t handle_interrupts :1, /* Are we ready for real work? */
1033: target_mode_enabled :1,
1034: resource_shortage :1,
1035: cache_type :2,
1036: spare :28;
1037:
1038: int total_dccbs;
1039: int free_dccbs;
1040: int pending_ccbs;
1041: int completed_ccbs;
1042:
1043: SLIST_HEAD(, dpt_ccb) free_dccb_list;
1044: LIST_HEAD(, ccb_hdr) pending_ccb_list;
1045:
1046: bus_dma_tag_t parent_dmat;
1047: bus_dma_tag_t dccb_dmat; /* dmat for our ccb array */
1048: bus_dmamap_t dccb_dmamap;
1049: bus_dma_tag_t sg_dmat; /* dmat for our sg maps */
1050: SLIST_HEAD(, sg_map_node) sg_maps;
1051:
1052: struct cam_sim *sims[MAX_CHANNELS];
1053: struct cam_path *paths[MAX_CHANNELS];
1054: u_int32_t commands_processed;
1055: u_int32_t lost_interrupts;
1056:
1057: /*
1058: * These three parameters can be used to allow for wide scsi, and
1059: * for host adapters that support multiple busses. The first two
1060: * should be set to 1 more than the actual max id or lun (i.e. 8 for
1061: * normal systems).
1062: *
1063: * There is a FAT assumption here; We assume that these will never
1064: * exceed MAX_CHANNELS, MAX_TARGETS, MAX_LUNS
1065: */
1066: u_int channels; /* # of avail scsi chan. */
1067: u_int32_t max_id;
1068: u_int32_t max_lun;
1069:
1070: u_int8_t irq;
1071: u_int8_t dma_channel;
1072:
1073: TAILQ_ENTRY(dpt_softc) links;
1074: int unit;
1075: int init_level;
1076:
1077: /*
1078: * Every object on a unit can have a receiver, if it treats
1079: * us as a target. We do that so that separate and independant
1080: * clients can consume received buffers.
1081: */
1082:
1083: #define DPT_RW_BUFFER_SIZE (8 * 1024)
1084: dpt_ccb_t *target_ccb[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1085: u_int8_t *rw_buffer[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1086: dpt_rec_buff buffer_receiver[MAX_CHANNELS][MAX_TARGETS][MAX_LUNS];
1087:
1088: dpt_inq_t board_data;
1089: u_int8_t EATA_revision;
1090: u_int8_t bustype; /* bustype of HBA */
1091: u_int32_t state; /* state of HBA */
1092:
1093: #define DPT_HA_FREE 0x00000000
1094: #define DPT_HA_OK 0x00000000
1095: #define DPT_HA_NO_TIMEOUT 0x00000000
1096: #define DPT_HA_BUSY 0x00000001
1097: #define DPT_HA_TIMEOUT 0x00000002
1098: #define DPT_HA_RESET 0x00000004
1099: #define DPT_HA_LOCKED 0x00000008
1100: #define DPT_HA_ABORTED 0x00000010
1101: #define DPT_HA_CONTROL_ACTIVE 0x00000020
1102: #define DPT_HA_SHUTDOWN_ACTIVE 0x00000040
1103: #define DPT_HA_COMMAND_ACTIVE 0x00000080
1104: #define DPT_HA_QUIET 0x00000100
1105:
1106: #ifdef DPT_LOST_IRQ
1107: #define DPT_LOST_IRQ_SET 0x10000000
1108: #define DPT_LOST_IRQ_ACTIVE 0x20000000
1109: #endif
1110:
1111: #ifdef DPT_HANDLE_TIMEOUTS
1112: #define DPT_HA_TIMEOUTS_SET 0x40000000
1113: #define DPT_HA_TIMEOUTS_ACTIVE 0x80000000
1114: #endif
1115:
1116: u_int8_t primary; /* true if primary */
1117:
1118: u_int8_t more_support :1, /* HBA supports MORE flag */
1119: immediate_support :1, /* HBA supports IMMEDIATE */
1120: broken_INQUIRY :1, /* EISA HBA w/broken INQUIRY */
1121: spare2 :5;
1122:
1123: u_int8_t resetlevel[MAX_CHANNELS];
1124: u_int32_t last_ccb; /* Last used ccb */
1125: u_int32_t cplen; /* size of CP in words */
1126: u_int16_t cppadlen; /* pad length of cp */
1127: u_int16_t max_dccbs;
1128: u_int16_t sgsize; /* Entries in the SG list */
1129: u_int8_t hostid[MAX_CHANNELS]; /* SCSI ID of HBA */
1130: u_int32_t cache_size;
1131:
1132: volatile dpt_sp_t *sp; /* status packet */
1133: /* Copied from the status packet during interrupt handler */
1134: u_int8_t hba_stat;
1135: u_int8_t scsi_stat; /* Target SCSI status */
1136: u_int32_t residue_len; /* Number of bytes not transferred */
1137: bus_addr_t sp_physaddr; /* phys address of status packet */
1138:
1139: /*
1140: * We put ALL conditional elements at the tail for the structure.
1141: * If we do not, then userland code will crash or trash based on which
1142: * kernel it is running with.
1143: * This isi most visible with usr/sbin/dpt_softc(8)
1144: */
1145:
1146: #ifdef DPT_MEASURE_PERFORMANCE
1147: dpt_perf_t performance;
1148: #endif
1149:
1150: #ifdef DPT_RESET_HBA
1151: struct timeval last_contact;
1152: #endif
1153: } dpt_softc_t;
1154:
1155: /*
1156: * This structure is used to pass dpt_softc contents to userland via the
1157: * ioctl DPT_IOCTL_SOFTC. The reason for this maddness, is that FreeBSD
1158: * (all BSDs ?) chose to actually assign a nasty meaning to the IOCTL word,
1159: * encoding 13 bits of it as size. As dpt_softc_t is somewhere between
1160: * 8,594 and 8,600 (depends on options), we have to copy the data to
1161: * something less than 4KB long. This siliness also solves the problem of
1162: * varying definition of dpt_softc_t, As the variants are exluded from
1163: * dpt_user_softc.
1164: *
1165: * See dpt_softc_t above for enumerations, comments and such.
1166: */
1167: typedef struct dpt_user_softc {
1168: int unit;
1169: u_int32_t handle_interrupts :1, /* Are we ready for real work? */
1170: target_mode_enabled :1,
1171: spare :30;
1172:
1173: int total_ccbs_count;
1174: int free_ccbs_count;
1175: int waiting_ccbs_count;
1176: int submitted_ccbs_count;
1177: int completed_ccbs_count;
1178:
1179: u_int32_t queue_status;
1180: u_int32_t free_lock;
1181: u_int32_t waiting_lock;
1182: u_int32_t submitted_lock;
1183: u_int32_t completed_lock;
1184:
1185: u_int32_t commands_processed;
1186: u_int32_t lost_interrupts;
1187:
1188: u_int8_t channels;
1189: u_int32_t max_id;
1190: u_int32_t max_lun;
1191:
1192: u_int16_t io_base;
1193: u_int8_t *v_membase;
1194: u_int8_t *p_membase;
1195:
1196: u_int8_t irq;
1197: u_int8_t dma_channel;
1198:
1199: dpt_inq_t board_data;
1200: u_int8_t EATA_revision;
1201: u_int8_t bustype;
1202: u_int32_t state;
1203:
1204: u_int8_t primary;
1205: u_int8_t more_support :1,
1206: immediate_support :1,
1207: broken_INQUIRY :1,
1208: spare2 :5;
1209:
1210: u_int8_t resetlevel[MAX_CHANNELS];
1211: u_int32_t last_ccb;
1212: u_int32_t cplen;
1213: u_int16_t cppadlen;
1214: u_int16_t queuesize;
1215: u_int16_t sgsize;
1216: u_int8_t hostid[MAX_CHANNELS];
1217: u_int32_t cache_type :2,
1218: cache_size :30;
1219: } dpt_user_softc_t;
1220:
1221: /*
1222: * Externals:
1223: * These all come from dpt_scsi.c
1224: *
1225: */
1226: #ifdef _KERNEL
1227: /* This function gets the current hi-res time and returns it to the caller */
1228: static __inline struct timeval
1229: dpt_time_now(void)
1230: {
1231: struct timeval now;
1232:
1233: microtime(&now);
1234: return(now);
1235: }
1236:
1237: /*
1238: * Given a minor device number, get its SCSI Unit.
1239: */
1240: static __inline int
1241: dpt_minor2unit(int minor)
1242: {
1243: return(minor2hba(minor));
1244: }
1245:
1246: dpt_softc_t *dpt_minor2softc(int minor_no);
1247:
1248: #endif /* _KERNEL */
1249:
1250: /*
1251: * This function substracts one timval structure from another,
1252: * Returning the result in usec.
1253: * It assumes that less than 4 billion usecs passed form start to end.
1254: * If times are sensless, ~0 is returned.
1255: */
1256: static __inline u_int32_t
1257: dpt_time_delta(struct timeval start,
1258: struct timeval end)
1259: {
1260: if (start.tv_sec > end.tv_sec)
1261: return(~0);
1262:
1263: if ( (start.tv_sec == end.tv_sec) && (start.tv_usec > end.tv_usec) )
1264: return(~0);
1265:
1266: return ( (end.tv_sec - start.tv_sec) * 1000000 +
1267: (end.tv_usec - start.tv_usec) );
1268: }
1269:
1270: extern TAILQ_HEAD(dpt_softc_list, dpt_softc) dpt_softcs;
1271:
1272: extern int dpt_controllers_present;
1273:
1274: #ifdef _KERNEL
1275: dpt_softc_t * dpt_alloc(device_t, bus_space_tag_t, bus_space_handle_t);
1276: #endif
1277: void dpt_free(struct dpt_softc *dpt);
1278: int dpt_init(struct dpt_softc *dpt);
1279: int dpt_attach(dpt_softc_t * dpt);
1280: void dpt_intr(void *arg);
1281:
1282: dpt_conf_t * dpt_pio_get_conf(u_int32_t);
1283:
1284: #if 0
1285: extern void hex_dump(u_char * data, int length,
1286: char *name, int no);
1287: extern char *i2bin(unsigned int no, int length);
1288: extern char *scsi_cmd_name(u_int8_t cmd);
1289:
1290: extern dpt_conf_t *dpt_get_conf(dpt_softc_t *dpt, u_int8_t page,
1291: u_int8_t target, u_int8_t size,
1292: int extent);
1293:
1294: extern int dpt_setup(dpt_softc_t * dpt, dpt_conf_t * conf);
1295: extern int dpt_attach(dpt_softc_t * dpt);
1296: extern void dpt_shutdown(int howto, dpt_softc_t *dpt);
1297: extern void dpt_detect_cache(dpt_softc_t *dpt);
1298:
1299: extern int dpt_user_cmd(dpt_softc_t *dpt, eata_pt_t *user_cmd,
1300: caddr_t cmdarg, int minor_no);
1301:
1302: extern u_int8_t dpt_blinking_led(dpt_softc_t *dpt);
1303:
1304: extern dpt_rb_t dpt_register_buffer(int unit, u_int8_t channel, u_int8_t target,
1305: u_int8_t lun, u_int8_t mode,
1306: u_int16_t length, u_int16_t offset,
1307: dpt_rec_buff callback, dpt_rb_op_t op);
1308:
1309: extern int dpt_send_buffer(int unit, u_int8_t channel, u_int8_t target,
1310: u_int8_t lun, u_int8_t mode, u_int16_t length,
1311: u_int16_t offset, void *data,
1312: buff_wr_done callback);
1313:
1314:
1315:
1316: void dpt_reset_performance(dpt_softc_t *dpt);
1317: #endif
1318:
1319: #endif /* _DPT_H */
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