2 * Core definitions and data structures shareable across OS platforms.
4 * Copyright (c) 1994-2002 Justin T. Gibbs.
5 * Copyright (c) 2000-2002 Adaptec Inc.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
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17 * including a substantially similar Disclaimer requirement for further
18 * binary redistribution.
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20 * of any contributors may be used to endorse or promote products derived
21 * from this software without specific prior written permission.
23 * Alternatively, this software may be distributed under the terms of the
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40 * $Id: //depot/aic7xxx/aic7xxx/aic79xx.h#107 $
42 * $FreeBSD: src/sys/dev/aic7xxx/aic79xx.h,v 1.27 2007/04/19 18:53:52 scottl Exp $
43 * $DragonFly: src/sys/dev/disk/aic7xxx/aic79xx.h,v 1.13 2007/07/19 00:23:04 pavalos Exp $
49 /* Register Definitions */
50 #include "aic79xx_reg.h"
52 /************************* Forward Declarations *******************************/
53 struct ahd_platform_data;
54 struct scb_platform_data;
56 /****************************** Useful Macros *********************************/
58 #define MAX(a,b) (((a) > (b)) ? (a) : (b))
62 #define MIN(a,b) (((a) < (b)) ? (a) : (b))
72 #define NUM_ELEMENTS(array) (sizeof(array) / sizeof(*array))
74 #define ALL_CHANNELS '\0'
75 #define ALL_TARGETS_MASK 0xFFFF
76 #define INITIATOR_WILDCARD (~0)
77 #define SCB_LIST_NULL 0xFF00
78 #define SCB_LIST_NULL_LE (aic_htole16(SCB_LIST_NULL))
79 #define QOUTFIFO_ENTRY_VALID 0x80
80 #define SCBID_IS_NULL(scbid) (((scbid) & 0xFF00 ) == SCB_LIST_NULL)
82 #define SCSIID_TARGET(ahd, scsiid) \
83 (((scsiid) & TID) >> TID_SHIFT)
84 #define SCSIID_OUR_ID(scsiid) \
86 #define SCSIID_CHANNEL(ahd, scsiid) ('A')
87 #define SCB_IS_SCSIBUS_B(ahd, scb) (0)
88 #define SCB_GET_OUR_ID(scb) \
89 SCSIID_OUR_ID((scb)->hscb->scsiid)
90 #define SCB_GET_TARGET(ahd, scb) \
91 SCSIID_TARGET((ahd), (scb)->hscb->scsiid)
92 #define SCB_GET_CHANNEL(ahd, scb) \
93 SCSIID_CHANNEL(ahd, (scb)->hscb->scsiid)
94 #define SCB_GET_LUN(scb) \
96 #define SCB_GET_TARGET_OFFSET(ahd, scb) \
97 SCB_GET_TARGET(ahd, scb)
98 #define SCB_GET_TARGET_MASK(ahd, scb) \
99 (0x01 << (SCB_GET_TARGET_OFFSET(ahd, scb)))
101 #define SCB_IS_SILENT(scb) \
102 ((ahd_debug & AHD_SHOW_MASKED_ERRORS) == 0 \
103 && (((scb)->flags & SCB_SILENT) != 0))
105 #define SCB_IS_SILENT(scb) \
106 (((scb)->flags & SCB_SILENT) != 0)
109 * TCLs have the following format: TTTTLLLLLLLL
111 #define TCL_TARGET_OFFSET(tcl) \
112 ((((tcl) >> 4) & TID) >> 4)
113 #define TCL_LUN(tcl) \
114 (tcl & (AHD_NUM_LUNS - 1))
115 #define BUILD_TCL(scsiid, lun) \
116 ((lun) | (((scsiid) & TID) << 4))
117 #define BUILD_TCL_RAW(target, channel, lun) \
118 ((lun) | ((target) << 8))
120 #define SCB_GET_TAG(scb) \
121 aic_le16toh(scb->hscb->tag)
123 #ifndef AHD_TARGET_MODE
124 #undef AHD_TMODE_ENABLE
125 #define AHD_TMODE_ENABLE 0
128 #define AHD_BUILD_COL_IDX(target, lun) \
129 (((lun) << 4) | target)
131 #define AHD_GET_SCB_COL_IDX(ahd, scb) \
132 ((SCB_GET_LUN(scb) << 4) | SCB_GET_TARGET(ahd, scb))
134 #define AHD_SET_SCB_COL_IDX(scb, col_idx) \
136 (scb)->hscb->scsiid = ((col_idx) << TID_SHIFT) & TID; \
137 (scb)->hscb->lun = ((col_idx) >> 4) & (AHD_NUM_LUNS_NONPKT-1); \
140 #define AHD_COPY_SCB_COL_IDX(dst, src) \
142 dst->hscb->scsiid = src->hscb->scsiid; \
143 dst->hscb->lun = src->hscb->lun; \
146 #define AHD_NEVER_COL_IDX 0xFFFF
148 /**************************** Driver Constants ********************************/
150 * The maximum number of supported targets.
152 #define AHD_NUM_TARGETS 16
155 * The maximum number of supported luns.
156 * The identify message only supports 64 luns in non-packetized transfers.
157 * You can have 2^64 luns when information unit transfers are enabled,
158 * but until we see a need to support that many, we support 256.
160 #define AHD_NUM_LUNS_NONPKT 64
161 #define AHD_NUM_LUNS 256
164 * The maximum transfer per S/G segment.
166 #define AHD_MAXTRANSFER_SIZE 0x00ffffff /* limited by 24bit counter */
169 * The maximum amount of SCB storage in hardware on a controller.
170 * This value represents an upper bound. Due to software design,
171 * we may not be able to use this number.
173 #define AHD_SCB_MAX 512
176 * The maximum number of concurrent transactions supported per driver instance.
177 * Sequencer Control Blocks (SCBs) store per-transaction information.
179 #define AHD_MAX_QUEUE AHD_SCB_MAX
182 * Define the size of our QIN and QOUT FIFOs. They must be a power of 2
183 * in size and accommodate as many transactions as can be queued concurrently.
185 #define AHD_QIN_SIZE AHD_MAX_QUEUE
186 #define AHD_QOUT_SIZE AHD_MAX_QUEUE
188 #define AHD_QIN_WRAP(x) ((x) & (AHD_QIN_SIZE-1))
190 * The maximum amount of SCB storage we allocate in host memory.
192 #define AHD_SCB_MAX_ALLOC AHD_MAX_QUEUE
195 * Ring Buffer of incoming target commands.
196 * We allocate 256 to simplify the logic in the sequencer
197 * by using the natural wrap point of an 8bit counter.
199 #define AHD_TMODE_CMDS 256
201 /* Reset line assertion time in us */
202 #define AHD_BUSRESET_DELAY 25
204 /******************* Chip Characteristics/Operating Settings *****************/
205 extern uint32_t ahd_attach_to_HostRAID_controllers;
209 * The chip order is from least sophisticated to most sophisticated.
213 AHD_CHIPID_MASK = 0x00FF,
214 AHD_AIC7901 = 0x0001,
215 AHD_AIC7902 = 0x0002,
216 AHD_AIC7901A = 0x0003,
217 AHD_PCI = 0x0100, /* Bus type PCI */
218 AHD_PCIX = 0x0200, /* Bus type PCIX */
219 AHD_BUS_MASK = 0x0F00
223 * Features available in each chip type.
226 AHD_FENONE = 0x00000,
227 AHD_WIDE = 0x00001,/* Wide Channel */
228 AHD_MULTI_FUNC = 0x00100,/* Multi-Function/Channel Device */
229 AHD_TARGETMODE = 0x01000,/* Has tested target mode support */
230 AHD_MULTIROLE = 0x02000,/* Space for two roles at a time */
231 AHD_RTI = 0x04000,/* Retained Training Support */
232 AHD_NEW_IOCELL_OPTS = 0x08000,/* More Signal knobs in the IOCELL */
233 AHD_NEW_DFCNTRL_OPTS = 0x10000,/* SCSIENWRDIS bit */
234 AHD_FAST_CDB_DELIVERY = 0x20000,/* CDB acks released to Output Sync */
235 AHD_REMOVABLE = 0x00000,/* Hot-Swap supported - None so far*/
236 AHD_AIC7901_FE = AHD_FENONE,
237 AHD_AIC7901A_FE = AHD_FENONE,
238 AHD_AIC7902_FE = AHD_MULTI_FUNC
242 * Bugs in the silicon that we work around in software.
245 AHD_BUGNONE = 0x0000,
247 * Rev A hardware fails to update LAST/CURR/NEXTSCB
248 * correctly in certain packetized selection cases.
250 AHD_SENT_SCB_UPDATE_BUG = 0x0001,
251 /* The wrong SCB is accessed to check the abort pending bit. */
252 AHD_ABORT_LQI_BUG = 0x0002,
253 /* Packetized bitbucket crosses packet boundaries. */
254 AHD_PKT_BITBUCKET_BUG = 0x0004,
255 /* The selection timer runs twice as long as its setting. */
256 AHD_LONG_SETIMO_BUG = 0x0008,
257 /* The Non-LQ CRC error status is delayed until phase change. */
258 AHD_NLQICRC_DELAYED_BUG = 0x0010,
259 /* The chip must be reset for all outgoing bus resets. */
260 AHD_SCSIRST_BUG = 0x0020,
261 /* Some PCIX fields must be saved and restored across chip reset. */
262 AHD_PCIX_CHIPRST_BUG = 0x0040,
263 /* MMAPIO is not functional in PCI-X mode. */
264 AHD_PCIX_MMAPIO_BUG = 0x0080,
265 /* Reads to SCBRAM fail to reset the discard timer. */
266 AHD_PCIX_SCBRAM_RD_BUG = 0x0100,
267 /* Bug workarounds that can be disabled on non-PCIX busses. */
268 AHD_PCIX_BUG_MASK = AHD_PCIX_CHIPRST_BUG
269 | AHD_PCIX_MMAPIO_BUG
270 | AHD_PCIX_SCBRAM_RD_BUG,
272 * LQOSTOP0 status set even for forced selections with ATN
273 * to perform non-packetized message delivery.
275 AHD_LQO_ATNO_BUG = 0x0200,
276 /* FIFO auto-flush does not always trigger. */
277 AHD_AUTOFLUSH_BUG = 0x0400,
278 /* The CLRLQO registers are not self-clearing. */
279 AHD_CLRLQO_AUTOCLR_BUG = 0x0800,
280 /* The PACKETIZED status bit refers to the previous connection. */
281 AHD_PKTIZED_STATUS_BUG = 0x1000,
282 /* "Short Luns" are not placed into outgoing LQ packets correctly. */
283 AHD_PKT_LUN_BUG = 0x2000,
285 * Only the FIFO allocated to the non-packetized connection may
286 * be in use during a non-packetzied connection.
288 AHD_NONPACKFIFO_BUG = 0x4000,
290 * Writing to a DFF SCBPTR register may fail if concurent with
291 * a hardware write to the other DFF SCBPTR register. This is
292 * not currently a concern in our sequencer since all chips with
293 * this bug have the AHD_NONPACKFIFO_BUG and all writes of concern
294 * occur in non-packetized connections.
296 AHD_MDFF_WSCBPTR_BUG = 0x8000,
297 /* SGHADDR updates are slow. */
298 AHD_REG_SLOW_SETTLE_BUG = 0x10000,
300 * Changing the MODE_PTR coincident with an interrupt that
301 * switches to a different mode will cause the interrupt to
302 * be in the mode written outside of interrupt context.
304 AHD_SET_MODE_BUG = 0x20000,
305 /* Non-packetized busfree revision does not work. */
306 AHD_BUSFREEREV_BUG = 0x40000,
308 * Paced transfers are indicated with a non-standard PPR
309 * option bit in the neg table, 160MHz is indicated by
310 * sync factor 0x7, and the offset if off by a factor of 2.
312 AHD_PACED_NEGTABLE_BUG = 0x80000,
313 /* LQOOVERRUN false positives. */
314 AHD_LQOOVERRUN_BUG = 0x100000,
316 * Controller write to INTSTAT will lose to a host
319 AHD_INTCOLLISION_BUG = 0x200000,
321 * The GEM318 violates the SCSI spec by not waiting
322 * the mandated bus settle delay between phase changes
323 * in some situations. Some aic79xx chip revs. are more
324 * strict in this regard and will treat REQ assertions
325 * that fall within the bus settle delay window as
326 * glitches. This flag tells the firmware to tolerate
327 * early REQ assertions.
329 AHD_EARLY_REQ_BUG = 0x400000,
331 * The LED does not stay on long enough in packetized modes.
333 AHD_FAINT_LED_BUG = 0x800000
337 * Configuration specific settings.
338 * The driver determines these settings by probing the
339 * chip/controller's configuration.
343 AHD_BOOT_CHANNEL = 0x00001,/* We were set as the boot channel. */
344 AHD_USEDEFAULTS = 0x00004,/*
345 * For cards without an seeprom
346 * or a BIOS to initialize the chip's
347 * SRAM, we use the default target
350 AHD_SEQUENCER_DEBUG = 0x00008,
351 AHD_RESET_BUS_A = 0x00010,
352 AHD_EXTENDED_TRANS_A = 0x00020,
353 AHD_TERM_ENB_A = 0x00040,
354 AHD_SPCHK_ENB_A = 0x00080,
355 AHD_STPWLEVEL_A = 0x00100,
356 AHD_INITIATORROLE = 0x00200,/*
357 * Allow initiator operations on
360 AHD_TARGETROLE = 0x00400,/*
361 * Allow target operations on this
364 AHD_RESOURCE_SHORTAGE = 0x00800,
365 AHD_TQINFIFO_BLOCKED = 0x01000,/* Blocked waiting for ATIOs */
366 AHD_INT50_SPEEDFLEX = 0x02000,/*
367 * Internal 50pin connector
368 * sits behind an aic3860
370 AHD_BIOS_ENABLED = 0x04000,
371 AHD_ALL_INTERRUPTS = 0x08000,
372 AHD_39BIT_ADDRESSING = 0x10000,/* Use 39 bit addressing scheme. */
373 AHD_64BIT_ADDRESSING = 0x20000,/* Use 64 bit addressing scheme. */
374 AHD_CURRENT_SENSING = 0x40000,
375 AHD_SCB_CONFIG_USED = 0x80000,/* No SEEPROM but SCB had info. */
376 AHD_HP_BOARD = 0x100000,
377 AHD_RESET_POLL_ACTIVE = 0x200000,
378 AHD_UPDATE_PEND_CMDS = 0x400000,
379 AHD_RUNNING_QOUTFIFO = 0x800000,
380 AHD_HAD_FIRST_SEL = 0x1000000,
381 AHD_SHUTDOWN_RECOVERY = 0x2000000, /* Terminate recovery thread. */
382 AHD_HOSTRAID_BOARD = 0x4000000
385 /************************* Hardware SCB Definition ***************************/
388 * The driver keeps up to MAX_SCB scb structures per card in memory. The SCB
389 * consists of a "hardware SCB" mirroring the fields available on the card
390 * and additional information the kernel stores for each transaction.
392 * To minimize space utilization, a portion of the hardware scb stores
393 * different data during different portions of a SCSI transaction.
394 * As initialized by the host driver for the initiator role, this area
395 * contains the SCSI cdb (or a pointer to the cdb) to be executed. After
396 * the cdb has been presented to the target, this area serves to store
397 * residual transfer information and the SCSI status byte.
398 * For the target role, the contents of this area do not change, but
399 * still serve a different purpose than for the initiator role. See
400 * struct target_data for details.
404 * Status information embedded in the shared poriton of
405 * an SCB after passing the cdb to the target. The kernel
406 * driver will only read this data for transactions that
407 * complete abnormally.
409 struct initiator_status {
410 uint32_t residual_datacnt; /* Residual in the current S/G seg */
411 uint32_t residual_sgptr; /* The next S/G for this transfer */
412 uint8_t scsi_status; /* Standard SCSI status byte */
415 struct target_status {
416 uint32_t residual_datacnt; /* Residual in the current S/G seg */
417 uint32_t residual_sgptr; /* The next S/G for this transfer */
418 uint8_t scsi_status; /* SCSI status to give to initiator */
419 uint8_t target_phases; /* Bitmap of phases to execute */
420 uint8_t data_phase; /* Data-In or Data-Out */
421 uint8_t initiator_tag; /* Initiator's transaction tag */
425 * Initiator mode SCB shared data area.
426 * If the embedded CDB is 12 bytes or less, we embed
427 * the sense buffer address in the SCB. This allows
428 * us to retrieve sense information without interrupting
429 * the host in packetized mode.
431 typedef uint32_t sense_addr_t;
432 #define MAX_CDB_LEN 16
433 #define MAX_CDB_LEN_WITH_SENSE_ADDR (MAX_CDB_LEN - sizeof(sense_addr_t))
434 union initiator_data {
439 uint8_t cdb[MAX_CDB_LEN];
441 uint8_t cdb[MAX_CDB_LEN_WITH_SENSE_ADDR];
442 sense_addr_t sense_addr;
447 * Target mode version of the shared data SCB segment.
451 uint8_t scsi_status; /* SCSI status to give to initiator */
452 uint8_t target_phases; /* Bitmap of phases to execute */
453 uint8_t data_phase; /* Data-In or Data-Out */
454 uint8_t initiator_tag; /* Initiator's transaction tag */
457 struct hardware_scb {
459 union initiator_data idata;
460 struct target_data tdata;
461 struct initiator_status istatus;
462 struct target_status tstatus;
465 * A word about residuals.
466 * The scb is presented to the sequencer with the dataptr and datacnt
467 * fields initialized to the contents of the first S/G element to
468 * transfer. The sgptr field is initialized to the bus address for
469 * the S/G element that follows the first in the in core S/G array
470 * or'ed with the SG_FULL_RESID flag. Sgptr may point to an invalid
471 * S/G entry for this transfer (single S/G element transfer with the
472 * first elements address and length preloaded in the dataptr/datacnt
473 * fields). If no transfer is to occur, sgptr is set to SG_LIST_NULL.
474 * The SG_FULL_RESID flag ensures that the residual will be correctly
475 * noted even if no data transfers occur. Once the data phase is entered,
476 * the residual sgptr and datacnt are loaded from the sgptr and the
477 * datacnt fields. After each S/G element's dataptr and length are
478 * loaded into the hardware, the residual sgptr is advanced. After
479 * each S/G element is expired, its datacnt field is checked to see
480 * if the LAST_SEG flag is set. If so, SG_LIST_NULL is set in the
481 * residual sg ptr and the transfer is considered complete. If the
482 * sequencer determines that there is a residual in the tranfer, or
483 * there is non-zero status, it will set the SG_STATUS_VALID flag in
484 * sgptr and dma the scb back into host memory. To sumarize:
487 * o A residual has occurred if SG_FULL_RESID is set in sgptr,
488 * or residual_sgptr does not have SG_LIST_NULL set.
490 * o We are transfering the last segment if residual_datacnt has
491 * the SG_LAST_SEG flag set.
494 * o A residual can only have occurred if a completed scb has the
495 * SG_STATUS_VALID flag set. Inspection of the SCSI status field,
496 * the residual_datacnt, and the residual_sgptr field will tell
499 * o residual_sgptr and sgptr refer to the "next" sg entry
500 * and so may point beyond the last valid sg entry for the
503 #define SG_PTR_MASK 0xFFFFFFF8
504 /*16*/ uint16_t tag; /* Reused by Sequencer. */
505 /*18*/ uint8_t control; /* See SCB_CONTROL in aic79xx.reg for details */
506 /*19*/ uint8_t scsiid; /*
508 * Our Id (bits 0-3) Their ID (bits 4-7)
511 /*21*/ uint8_t task_attribute;
512 /*22*/ uint8_t cdb_len;
513 /*23*/ uint8_t task_management;
514 /*24*/ uint64_t dataptr;
515 /*32*/ uint32_t datacnt; /* Byte 3 is spare. */
516 /*36*/ uint32_t sgptr;
517 /*40*/ uint32_t hscb_busaddr;
518 /*44*/ uint32_t next_hscb_busaddr;
519 /********** Long lun field only downloaded for full 8 byte lun support ********/
520 /*48*/ uint8_t pkt_long_lun[8];
521 /******* Fields below are not Downloaded (Sequencer may use for scratch) ******/
522 /*56*/ uint8_t spare[8];
525 /************************ Kernel SCB Definitions ******************************/
527 * Some fields of the SCB are OS dependent. Here we collect the
528 * definitions for elements that all OS platforms need to include
529 * in there SCB definition.
533 * Definition of a scatter/gather element as transfered to the controller.
534 * The aic7xxx chips only support a 24bit length. We use the top byte of
535 * the length to store additional address bits and a flag to indicate
536 * that a given segment terminates the transfer. This gives us an
537 * addressable range of 512GB on machines with 64bit PCI or with chips
538 * that can support dual address cycles on 32bit PCI busses.
543 #define AHD_DMA_LAST_SEG 0x80000000
544 #define AHD_SG_HIGH_ADDR_MASK 0x7F000000
545 #define AHD_SG_LEN_MASK 0x00FFFFFF
548 struct ahd_dma64_seg {
558 SLIST_ENTRY(map_node) links;
562 * The current state of this SCB.
565 SCB_FLAG_NONE = 0x00000,
566 SCB_TRANSMISSION_ERROR = 0x00001,/*
567 * We detected a parity or CRC
568 * error that has effected the
569 * payload of the command. This
570 * flag is checked when normal
571 * status is returned to catch
572 * the case of a target not
573 * responding to our attempt
574 * to report the error.
576 SCB_OTHERTCL_TIMEOUT = 0x00002,/*
577 * Another device was active
578 * during the first timeout for
579 * this SCB so we gave ourselves
580 * an additional timeout period
581 * in case it was hogging the
584 SCB_DEVICE_RESET = 0x00004,
586 SCB_CDB32_PTR = 0x00010,
587 SCB_RECOVERY_SCB = 0x00020,
588 SCB_AUTO_NEGOTIATE = 0x00040,/* Negotiate to achieve goal. */
589 SCB_NEGOTIATE = 0x00080,/* Negotiation forced for command. */
591 SCB_ACTIVE = 0x00200,
592 SCB_TARGET_IMMEDIATE = 0x00400,
593 SCB_PACKETIZED = 0x00800,
594 SCB_EXPECT_PPR_BUSFREE = 0x01000,
595 SCB_PKT_SENSE = 0x02000,
596 SCB_CMDPHASE_ABORT = 0x04000,
597 SCB_ON_COL_LIST = 0x08000,
598 SCB_SILENT = 0x10000,/*
599 * Be quiet about transmission type
600 * errors. They are expected and we
601 * don't want to upset the user. This
602 * flag is typically used during DV.
604 SCB_TIMEDOUT = 0x20000/*
605 * SCB has timed out and is on the
611 struct hardware_scb *hscb;
613 SLIST_ENTRY(scb) sle;
615 TAILQ_ENTRY(scb) tqe;
618 SLIST_ENTRY(scb) sle;
620 TAILQ_ENTRY(scb) tqe;
622 #define pending_links links2.le
623 #define collision_links links2.le
624 LIST_ENTRY(scb) timedout_links;
627 struct ahd_softc *ahd_softc;
632 struct scb_platform_data *platform_data;
633 struct map_node *hscb_map;
634 struct map_node *sg_map;
635 struct map_node *sense_map;
638 bus_addr_t sg_list_busaddr;
639 bus_addr_t sense_busaddr;
640 u_int sg_count;/* How full ahd_dma_seg is */
641 #define AHD_MAX_LQ_CRC_ERRORS 5
642 u_int crc_retry_count;
645 TAILQ_HEAD(scb_tailq, scb);
646 LIST_HEAD(scb_list, scb);
650 * TAILQ of lists of free SCBs grouped by device
653 struct scb_tailq free_scbs;
656 * Per-device lists of SCBs whose tag ID would collide
657 * with an already active tag on the device.
659 struct scb_list free_scb_lists[AHD_NUM_TARGETS * AHD_NUM_LUNS_NONPKT];
662 * SCBs that will not collide with any active device.
664 struct scb_list any_dev_free_scb_list;
667 * Mapping from tag to SCB.
669 struct scb *scbindex[AHD_SCB_MAX];
671 u_int recovery_scbs; /* Transactions currently in recovery */
674 * "Bus" addresses of our data structures.
676 bus_dma_tag_t hscb_dmat; /* dmat for our hardware SCB array */
677 bus_dma_tag_t sg_dmat; /* dmat for our sg segments */
678 bus_dma_tag_t sense_dmat; /* dmat for our sense buffers */
680 SLIST_HEAD(, map_node) hscb_maps;
681 SLIST_HEAD(, map_node) sg_maps;
682 SLIST_HEAD(, map_node) sense_maps;
683 int scbs_left; /* unallocated scbs in head map_node */
684 int sgs_left; /* unallocated sgs in head map_node */
685 int sense_left; /* unallocated sense in head map_node */
687 uint16_t maxhscbs; /* Number of SCBs on the card */
688 uint8_t init_level; /*
689 * How far we've initialized
694 /************************ Target Mode Definitions *****************************/
697 * Connection desciptor for select-in requests in target mode.
700 uint8_t scsiid; /* Our ID and the initiator's ID */
701 uint8_t identify; /* Identify message */
702 uint8_t bytes[22]; /*
703 * Bytes contains any additional message
704 * bytes terminated by 0xFF. The remainder
705 * is the cdb to execute.
707 uint8_t cmd_valid; /*
708 * When a command is complete, the firmware
709 * will set cmd_valid to all bits set.
710 * After the host has seen the command,
711 * the bits are cleared. This allows us
712 * to just peek at host memory to determine
713 * if more work is complete. cmd_valid is on
714 * an 8 byte boundary to simplify setting
715 * it on aic7880 hardware which only has
716 * limited direct access to the DMA FIFO.
722 * Number of events we can buffer up if we run out
723 * of immediate notify ccbs.
725 #define AHD_TMODE_EVENT_BUFFER_SIZE 8
726 struct ahd_tmode_event {
727 uint8_t initiator_id;
728 uint8_t event_type; /* MSG type or EVENT_TYPE_BUS_RESET */
729 #define EVENT_TYPE_BUS_RESET 0xFF
734 * Per enabled lun target mode state.
735 * As this state is directly influenced by the host OS'es target mode
736 * environment, we let the OS module define it. Forward declare the
737 * structure here so we can store arrays of them, etc. in OS neutral
740 #ifdef AHD_TARGET_MODE
741 struct ahd_tmode_lstate {
742 struct cam_path *path;
743 struct ccb_hdr_slist accept_tios;
744 struct ccb_hdr_slist immed_notifies;
745 struct ahd_tmode_event event_buffer[AHD_TMODE_EVENT_BUFFER_SIZE];
750 struct ahd_tmode_lstate;
753 /******************** Transfer Negotiation Datastructures *********************/
754 #define AHD_TRANS_CUR 0x01 /* Modify current neogtiation status */
755 #define AHD_TRANS_ACTIVE 0x03 /* Assume this target is on the bus */
756 #define AHD_TRANS_GOAL 0x04 /* Modify negotiation goal */
757 #define AHD_TRANS_USER 0x08 /* Modify user negotiation settings */
758 #define AHD_PERIOD_10MHz 0x19
760 #define AHD_WIDTH_UNKNOWN 0xFF
761 #define AHD_PERIOD_UNKNOWN 0xFF
762 #define AHD_OFFSET_UNKNOWN 0xFF
763 #define AHD_PPR_OPTS_UNKNOWN 0xFF
766 * Transfer Negotiation Information.
768 struct ahd_transinfo {
769 uint8_t protocol_version; /* SCSI Revision level */
770 uint8_t transport_version; /* SPI Revision level */
771 uint8_t width; /* Bus width */
772 uint8_t period; /* Sync rate factor */
773 uint8_t offset; /* Sync offset */
774 uint8_t ppr_options; /* Parallel Protocol Request options */
778 * Per-initiator current, goal and user transfer negotiation information. */
779 struct ahd_initiator_tinfo {
780 struct ahd_transinfo curr;
781 struct ahd_transinfo goal;
782 struct ahd_transinfo user;
786 * Per enabled target ID state.
787 * Pointers to lun target state as well as sync/wide negotiation information
788 * for each initiator<->target mapping. For the initiator role we pretend
789 * that we are the target and the targets are the initiators since the
790 * negotiation is the same regardless of role.
792 struct ahd_tmode_tstate {
793 struct ahd_tmode_lstate* enabled_luns[AHD_NUM_LUNS];
794 struct ahd_initiator_tinfo transinfo[AHD_NUM_TARGETS];
797 * Per initiator state bitmasks.
799 uint16_t auto_negotiate;/* Auto Negotiation Required */
800 uint16_t discenable; /* Disconnection allowed */
801 uint16_t tagenable; /* Tagged Queuing allowed */
805 * Points of interest along the negotiated transfer scale.
807 #define AHD_SYNCRATE_160 0x8
808 #define AHD_SYNCRATE_PACED 0x8
809 #define AHD_SYNCRATE_DT 0x9
810 #define AHD_SYNCRATE_ULTRA2 0xa
811 #define AHD_SYNCRATE_ULTRA 0xc
812 #define AHD_SYNCRATE_FAST 0x19
813 #define AHD_SYNCRATE_MIN_DT AHD_SYNCRATE_FAST
814 #define AHD_SYNCRATE_SYNC 0x32
815 #define AHD_SYNCRATE_MIN 0x60
816 #define AHD_SYNCRATE_ASYNC 0xFF
817 #define AHD_SYNCRATE_MAX AHD_SYNCRATE_160
819 /* Safe and valid period for async negotiations. */
820 #define AHD_ASYNC_XFER_PERIOD 0x44
823 * In RevA, the synctable uses a 120MHz rate for the period
824 * factor 8 and 160MHz for the period factor 7. The 120MHz
825 * rate never made it into the official SCSI spec, so we must
826 * compensate when setting the negotiation table for Rev A
829 #define AHD_SYNCRATE_REVA_120 0x8
830 #define AHD_SYNCRATE_REVA_160 0x7
832 /***************************** Lookup Tables **********************************/
834 * Phase -> name and message out response
835 * to parity errors in each phase table.
837 struct ahd_phase_table_entry {
839 uint8_t mesg_out; /* Message response to parity errors */
843 /************************** Serial EEPROM Format ******************************/
845 struct seeprom_config {
847 * Per SCSI ID Configuration Flags
849 uint16_t device_flags[16]; /* words 0-15 */
850 #define CFXFER 0x003F /* synchronous transfer rate */
851 #define CFXFER_ASYNC 0x3F
852 #define CFQAS 0x0040 /* Negotiate QAS */
853 #define CFPACKETIZED 0x0080 /* Negotiate Packetized Transfers */
854 #define CFSTART 0x0100 /* send start unit SCSI command */
855 #define CFINCBIOS 0x0200 /* include in BIOS scan */
856 #define CFDISC 0x0400 /* enable disconnection */
857 #define CFMULTILUNDEV 0x0800 /* Probe multiple luns in BIOS scan */
858 #define CFWIDEB 0x1000 /* wide bus device */
859 #define CFHOSTMANAGED 0x8000 /* Managed by a RAID controller */
864 uint16_t bios_control; /* word 16 */
865 #define CFSUPREM 0x0001 /* support all removeable drives */
866 #define CFSUPREMB 0x0002 /* support removeable boot drives */
867 #define CFBIOSSTATE 0x000C /* BIOS Action State */
868 #define CFBS_DISABLED 0x00
869 #define CFBS_ENABLED 0x04
870 #define CFBS_DISABLED_SCAN 0x08
871 #define CFENABLEDV 0x0010 /* Perform Domain Validation */
872 #define CFCTRL_A 0x0020 /* BIOS displays Ctrl-A message */
873 #define CFSPARITY 0x0040 /* SCSI parity */
874 #define CFEXTEND 0x0080 /* extended translation enabled */
875 #define CFBOOTCD 0x0100 /* Support Bootable CD-ROM */
876 #define CFMSG_LEVEL 0x0600 /* BIOS Message Level */
877 #define CFMSG_VERBOSE 0x0000
878 #define CFMSG_SILENT 0x0200
879 #define CFMSG_DIAG 0x0400
880 #define CFRESETB 0x0800 /* reset SCSI bus at boot */
884 * Host Adapter Control Bits
886 uint16_t adapter_control; /* word 17 */
887 #define CFAUTOTERM 0x0001 /* Perform Auto termination */
888 #define CFSTERM 0x0002 /* SCSI low byte termination */
889 #define CFWSTERM 0x0004 /* SCSI high byte termination */
890 #define CFSEAUTOTERM 0x0008 /* Ultra2 Perform secondary Auto Term*/
891 #define CFSELOWTERM 0x0010 /* Ultra2 secondary low term */
892 #define CFSEHIGHTERM 0x0020 /* Ultra2 secondary high term */
893 #define CFSTPWLEVEL 0x0040 /* Termination level control */
894 #define CFBIOSAUTOTERM 0x0080 /* Perform Auto termination */
895 #define CFTERM_MENU 0x0100 /* BIOS displays termination menu */
896 #define CFCLUSTERENB 0x8000 /* Cluster Enable */
899 * Bus Release Time, Host Adapter ID
901 uint16_t brtime_id; /* word 18 */
902 #define CFSCSIID 0x000f /* host adapter SCSI ID */
904 #define CFBRTIME 0xff00 /* bus release time/PCI Latency Time */
909 uint16_t max_targets; /* word 19 */
910 #define CFMAXTARG 0x00ff /* maximum targets */
911 #define CFBOOTLUN 0x0f00 /* Lun to boot from */
912 #define CFBOOTID 0xf000 /* Target to boot from */
913 uint16_t res_1[10]; /* words 20-29 */
914 uint16_t signature; /* BIOS Signature */
915 #define CFSIGNATURE 0x400
916 uint16_t checksum; /* word 31 */
920 * Vital Product Data used during POST and by the BIOS.
924 #define VPDMASTERBIOS 0x0001
925 #define VPDBOOTHOST 0x0002
926 uint8_t reserved_1[21];
927 uint8_t resource_type;
928 uint8_t resource_len[2];
929 uint8_t resource_data[8];
932 uint8_t vpd_keyword[2];
935 uint8_t device_flags;
936 uint8_t termnation_menus[2];
937 uint8_t fifo_threshold;
939 uint8_t vpd_checksum;
940 uint16_t default_target_flags;
941 uint16_t default_bios_flags;
942 uint16_t default_ctrl_flags;
950 uint8_t reserved_3[4];
953 /****************************** Flexport Logic ********************************/
954 #define FLXADDR_TERMCTL 0x0
955 #define FLX_TERMCTL_ENSECHIGH 0x8
956 #define FLX_TERMCTL_ENSECLOW 0x4
957 #define FLX_TERMCTL_ENPRIHIGH 0x2
958 #define FLX_TERMCTL_ENPRILOW 0x1
959 #define FLXADDR_ROMSTAT_CURSENSECTL 0x1
960 #define FLX_ROMSTAT_SEECFG 0xF0
961 #define FLX_ROMSTAT_EECFG 0x0F
962 #define FLX_ROMSTAT_SEE_93C66 0x00
963 #define FLX_ROMSTAT_SEE_NONE 0xF0
964 #define FLX_ROMSTAT_EE_512x8 0x0
965 #define FLX_ROMSTAT_EE_1MBx8 0x1
966 #define FLX_ROMSTAT_EE_2MBx8 0x2
967 #define FLX_ROMSTAT_EE_4MBx8 0x3
968 #define FLX_ROMSTAT_EE_16MBx8 0x4
969 #define CURSENSE_ENB 0x1
970 #define FLXADDR_FLEXSTAT 0x2
971 #define FLX_FSTAT_BUSY 0x1
972 #define FLXADDR_CURRENT_STAT 0x4
973 #define FLX_CSTAT_SEC_HIGH 0xC0
974 #define FLX_CSTAT_SEC_LOW 0x30
975 #define FLX_CSTAT_PRI_HIGH 0x0C
976 #define FLX_CSTAT_PRI_LOW 0x03
977 #define FLX_CSTAT_MASK 0x03
978 #define FLX_CSTAT_SHIFT 2
979 #define FLX_CSTAT_OKAY 0x0
980 #define FLX_CSTAT_OVER 0x1
981 #define FLX_CSTAT_UNDER 0x2
982 #define FLX_CSTAT_INVALID 0x3
984 int ahd_read_seeprom(struct ahd_softc *ahd, uint16_t *buf,
985 u_int start_addr, u_int count, int bstream);
987 int ahd_write_seeprom(struct ahd_softc *ahd, uint16_t *buf,
988 u_int start_addr, u_int count);
989 int ahd_wait_seeprom(struct ahd_softc *ahd);
990 int ahd_verify_vpd_cksum(struct vpd_config *vpd);
991 int ahd_verify_cksum(struct seeprom_config *sc);
992 int ahd_acquire_seeprom(struct ahd_softc *ahd);
993 void ahd_release_seeprom(struct ahd_softc *ahd);
995 /**************************** Message Buffer *********************************/
997 MSG_FLAG_NONE = 0x00,
998 MSG_FLAG_EXPECT_PPR_BUSFREE = 0x01,
999 MSG_FLAG_IU_REQ_CHANGED = 0x02,
1000 MSG_FLAG_EXPECT_IDE_BUSFREE = 0x04,
1001 MSG_FLAG_EXPECT_QASREJ_BUSFREE = 0x08,
1002 MSG_FLAG_PACKETIZED = 0x10
1006 MSG_TYPE_NONE = 0x00,
1007 MSG_TYPE_INITIATOR_MSGOUT = 0x01,
1008 MSG_TYPE_INITIATOR_MSGIN = 0x02,
1009 MSG_TYPE_TARGET_MSGOUT = 0x03,
1010 MSG_TYPE_TARGET_MSGIN = 0x04
1015 MSGLOOP_MSGCOMPLETE,
1019 /*********************** Software Configuration Structure *********************/
1020 struct ahd_suspend_channel_state {
1030 struct ahd_suspend_state {
1031 struct ahd_suspend_channel_state channel[2];
1034 uint8_t dspcistatus;
1036 uint8_t crccontrol1;
1038 /* Host and sequencer SCB counts */
1040 uint8_t *scratch_ram;
1044 typedef void (*ahd_bus_intr_t)(struct ahd_softc *);
1055 #define AHD_MK_MSK(x) (0x01 << (x))
1056 #define AHD_MODE_DFF0_MSK AHD_MK_MSK(AHD_MODE_DFF0)
1057 #define AHD_MODE_DFF1_MSK AHD_MK_MSK(AHD_MODE_DFF1)
1058 #define AHD_MODE_CCHAN_MSK AHD_MK_MSK(AHD_MODE_CCHAN)
1059 #define AHD_MODE_SCSI_MSK AHD_MK_MSK(AHD_MODE_SCSI)
1060 #define AHD_MODE_CFG_MSK AHD_MK_MSK(AHD_MODE_CFG)
1061 #define AHD_MODE_UNKNOWN_MSK AHD_MK_MSK(AHD_MODE_UNKNOWN)
1062 #define AHD_MODE_ANY_MSK (~0)
1064 typedef uint8_t ahd_mode_state;
1066 typedef void ahd_callback_t (void *);
1068 struct ahd_completion
1075 #define AIC_SCB_DATA(softc) (&(softc)->scb_data)
1078 bus_space_tag_t tags[2];
1079 bus_space_handle_t bshs[2];
1081 bus_dma_tag_t buffer_dmat; /* dmat for buffer I/O */
1083 struct scb_data scb_data;
1085 struct hardware_scb *next_queued_hscb;
1086 struct map_node *next_queued_hscb_map;
1089 * SCBs that have been sent to the controller
1091 LIST_HEAD(, scb) pending_scbs;
1094 * SCBs whose timeout routine has been called.
1096 LIST_HEAD(, scb) timedout_scbs;
1099 * Current register window mode information.
1105 * Saved register window mode information
1106 * used for restore on next unpause.
1108 ahd_mode saved_dst_mode;
1109 ahd_mode saved_src_mode;
1112 * Platform specific data.
1114 struct ahd_platform_data *platform_data;
1117 * Platform specific device information.
1119 aic_dev_softc_t dev_softc;
1122 * Bus specific device information.
1124 ahd_bus_intr_t bus_intr;
1127 * Target mode related state kept on a per enabled lun basis.
1128 * Targets that are not enabled will have null entries.
1129 * As an initiator, we keep one target entry for our initiator
1130 * ID to store our sync/wide transfer settings.
1132 struct ahd_tmode_tstate *enabled_targets[AHD_NUM_TARGETS];
1135 * The black hole device responsible for handling requests for
1136 * disabled luns on enabled targets.
1138 struct ahd_tmode_lstate *black_hole;
1141 * Device instance currently on the bus awaiting a continue TIO
1142 * for a command that was not given the disconnect priveledge.
1144 struct ahd_tmode_lstate *pending_device;
1147 * Timer handles for timer driven callbacks.
1149 aic_timer_t reset_timer;
1150 aic_timer_t stat_timer;
1155 #define AHD_STAT_UPDATE_MS 250
1156 #define AHD_STAT_BUCKETS 4
1157 u_int cmdcmplt_bucket;
1158 uint32_t cmdcmplt_counts[AHD_STAT_BUCKETS];
1159 uint32_t cmdcmplt_total;
1162 * Card characteristics
1165 ahd_feature features;
1168 struct seeprom_config *seep_config;
1170 /* Command Queues */
1171 struct ahd_completion *qoutfifo;
1172 uint16_t qoutfifonext;
1173 uint16_t qoutfifonext_valid_tag;
1174 uint16_t qinfifonext;
1175 uint16_t qinfifo[AHD_SCB_MAX];
1178 * Our qfreeze count. The sequencer compares
1179 * this value with its own counter to determine
1180 * whether to allow selections to occur.
1182 uint16_t qfreeze_cnt;
1184 /* Values to store in the SEQCTL register for pause and unpause */
1188 /* Critical Section Data */
1189 struct cs *critical_sections;
1190 u_int num_critical_sections;
1192 /* Buffer for handling packetized bitbucket. */
1193 uint8_t *overrun_buf;
1195 /* Links for chaining softcs */
1196 TAILQ_ENTRY(ahd_softc) links;
1198 /* Channel Names ('A', 'B', etc.) */
1201 /* Initiator Bus ID */
1205 * Target incoming command FIFO.
1207 struct target_cmd *targetcmds;
1208 uint8_t tqinfifonext;
1211 * Cached verson of the hs_mailbox so we can avoid
1212 * pausing the sequencer during mailbox updates.
1217 * Incoming and outgoing message handling.
1219 uint8_t send_msg_perror;
1220 ahd_msg_flags msg_flags;
1221 ahd_msg_type msg_type;
1222 uint8_t msgout_buf[12];/* Message we are sending */
1223 uint8_t msgin_buf[12];/* Message we are receiving */
1224 u_int msgout_len; /* Length of message to send */
1225 u_int msgout_index; /* Current index in msgout */
1226 u_int msgin_index; /* Current index in msgin */
1229 * Mapping information for data structures shared
1230 * between the sequencer and kernel.
1232 bus_dma_tag_t parent_dmat;
1233 bus_dma_tag_t shared_data_dmat;
1234 struct map_node shared_data_map;
1236 /* Information saved through suspend/resume cycles */
1237 struct ahd_suspend_state suspend_state;
1239 /* Number of enabled target mode device on this card */
1242 /* Initialization level of this data structure */
1245 /* PCI cacheline size. */
1246 u_int pci_cachesize;
1248 /* IO Cell Parameters */
1249 uint8_t iocell_opts[AHD_NUM_PER_DEV_ANNEXCOLS];
1252 uint16_t *saved_stack;
1254 /* Per-Unit descriptive information */
1255 const char *description;
1256 const char *bus_description;
1260 /* Selection Timer settings */
1264 * Interrupt coalescing settings.
1266 #define AHD_INT_COALESCING_TIMER_DEFAULT 250 /*us*/
1267 #define AHD_INT_COALESCING_MAXCMDS_DEFAULT 10
1268 #define AHD_INT_COALESCING_MAXCMDS_MAX 127
1269 #define AHD_INT_COALESCING_MINCMDS_DEFAULT 5
1270 #define AHD_INT_COALESCING_MINCMDS_MAX 127
1271 #define AHD_INT_COALESCING_THRESHOLD_DEFAULT 2000
1272 #define AHD_INT_COALESCING_STOP_THRESHOLD_DEFAULT 1000
1273 u_int int_coalescing_timer;
1274 u_int int_coalescing_maxcmds;
1275 u_int int_coalescing_mincmds;
1276 u_int int_coalescing_threshold;
1277 u_int int_coalescing_stop_threshold;
1279 uint16_t user_discenable;/* Disconnection allowed */
1280 uint16_t user_tagenable;/* Tagged Queuing allowed */
1283 TAILQ_HEAD(ahd_softc_tailq, ahd_softc);
1284 extern struct ahd_softc_tailq ahd_tailq;
1286 /*************************** IO Cell Configuration ****************************/
1287 #define AHD_PRECOMP_SLEW_INDEX \
1288 (AHD_ANNEXCOL_PRECOMP_SLEW - AHD_ANNEXCOL_PER_DEV0)
1290 #define AHD_AMPLITUDE_INDEX \
1291 (AHD_ANNEXCOL_AMPLITUDE - AHD_ANNEXCOL_PER_DEV0)
1293 #define AHD_SET_SLEWRATE(ahd, new_slew) \
1295 (ahd)->iocell_opts[AHD_PRECOMP_SLEW_INDEX] &= ~AHD_SLEWRATE_MASK; \
1296 (ahd)->iocell_opts[AHD_PRECOMP_SLEW_INDEX] |= \
1297 (((new_slew) << AHD_SLEWRATE_SHIFT) & AHD_SLEWRATE_MASK); \
1300 #define AHD_SET_PRECOMP(ahd, new_pcomp) \
1302 (ahd)->iocell_opts[AHD_PRECOMP_SLEW_INDEX] &= ~AHD_PRECOMP_MASK; \
1303 (ahd)->iocell_opts[AHD_PRECOMP_SLEW_INDEX] |= \
1304 (((new_pcomp) << AHD_PRECOMP_SHIFT) & AHD_PRECOMP_MASK); \
1307 #define AHD_SET_AMPLITUDE(ahd, new_amp) \
1309 (ahd)->iocell_opts[AHD_AMPLITUDE_INDEX] &= ~AHD_AMPLITUDE_MASK; \
1310 (ahd)->iocell_opts[AHD_AMPLITUDE_INDEX] |= \
1311 (((new_amp) << AHD_AMPLITUDE_SHIFT) & AHD_AMPLITUDE_MASK); \
1314 /************************ Active Device Information ***************************/
1321 struct ahd_devinfo {
1324 uint16_t target_mask;
1329 * Only guaranteed to be correct if not
1330 * in the busfree state.
1334 /****************************** PCI Structures ********************************/
1335 #define AHD_PCI_IOADDR0 PCIR_BAR(0) /* I/O BAR*/
1336 #define AHD_PCI_MEMADDR PCIR_BAR(1) /* Memory BAR */
1337 #define AHD_PCI_IOADDR1 PCIR_BAR(3) /* Second I/O BAR */
1339 typedef int (ahd_device_setup_t)(struct ahd_softc *);
1341 struct ahd_pci_identity {
1345 ahd_device_setup_t *setup;
1347 extern struct ahd_pci_identity ahd_pci_ident_table [];
1348 extern const u_int ahd_num_pci_devs;
1350 /*************************** Function Declarations ****************************/
1351 /******************************************************************************/
1352 void ahd_reset_cmds_pending(struct ahd_softc *ahd);
1353 u_int ahd_find_busy_tcl(struct ahd_softc *ahd, u_int tcl);
1354 void ahd_busy_tcl(struct ahd_softc *ahd,
1355 u_int tcl, u_int busyid);
1356 static __inline void ahd_unbusy_tcl(struct ahd_softc *ahd, u_int tcl);
1357 static __inline void
1358 ahd_unbusy_tcl(struct ahd_softc *ahd, u_int tcl)
1360 ahd_busy_tcl(ahd, tcl, SCB_LIST_NULL);
1363 /***************************** PCI Front End *********************************/
1364 struct ahd_pci_identity *ahd_find_pci_device(aic_dev_softc_t);
1365 int ahd_pci_config(struct ahd_softc *,
1366 struct ahd_pci_identity *);
1367 int ahd_pci_test_register_access(struct ahd_softc *);
1369 /************************** SCB and SCB queue management **********************/
1370 int ahd_probe_scbs(struct ahd_softc *);
1371 void ahd_qinfifo_requeue_tail(struct ahd_softc *ahd,
1373 int ahd_match_scb(struct ahd_softc *ahd, struct scb *scb,
1374 int target, char channel, int lun,
1375 u_int tag, role_t role);
1377 /****************************** Initialization ********************************/
1378 struct ahd_softc *ahd_alloc(void *platform_arg, char *name);
1379 int ahd_softc_init(struct ahd_softc *);
1380 void ahd_controller_info(struct ahd_softc *ahd, char *buf);
1381 int ahd_init(struct ahd_softc *ahd);
1382 int ahd_default_config(struct ahd_softc *ahd);
1383 int ahd_parse_vpddata(struct ahd_softc *ahd,
1384 struct vpd_config *vpd);
1385 int ahd_parse_cfgdata(struct ahd_softc *ahd,
1386 struct seeprom_config *sc);
1387 void ahd_intr_enable(struct ahd_softc *ahd, int enable);
1388 void ahd_update_coalescing_values(struct ahd_softc *ahd,
1392 void ahd_enable_coalescing(struct ahd_softc *ahd,
1394 void ahd_pause_and_flushwork(struct ahd_softc *ahd);
1395 int ahd_suspend(struct ahd_softc *ahd);
1396 int ahd_resume(struct ahd_softc *ahd);
1397 void ahd_softc_insert(struct ahd_softc *);
1398 struct ahd_softc *ahd_find_softc(struct ahd_softc *ahd);
1399 void ahd_set_unit(struct ahd_softc *, int);
1400 void ahd_set_name(struct ahd_softc *, char *);
1401 struct scb *ahd_get_scb(struct ahd_softc *ahd, u_int col_idx);
1402 void ahd_free_scb(struct ahd_softc *ahd, struct scb *scb);
1403 int ahd_alloc_scbs(struct ahd_softc *ahd);
1404 void ahd_free(struct ahd_softc *ahd);
1405 int ahd_reset(struct ahd_softc *ahd, int reinit);
1406 void ahd_shutdown(void *arg);
1407 int ahd_write_flexport(struct ahd_softc *ahd,
1408 u_int addr, u_int value);
1409 int ahd_read_flexport(struct ahd_softc *ahd, u_int addr,
1411 int ahd_wait_flexport(struct ahd_softc *ahd);
1413 /*************************** Interrupt Services *******************************/
1414 void ahd_pci_intr(struct ahd_softc *ahd);
1415 void ahd_clear_intstat(struct ahd_softc *ahd);
1416 void ahd_flush_qoutfifo(struct ahd_softc *ahd);
1417 void ahd_run_qoutfifo(struct ahd_softc *ahd);
1418 #ifdef AHD_TARGET_MODE
1419 void ahd_run_tqinfifo(struct ahd_softc *ahd, int paused);
1421 void ahd_handle_hwerrint(struct ahd_softc *ahd);
1422 void ahd_handle_seqint(struct ahd_softc *ahd, u_int intstat);
1423 void ahd_handle_scsiint(struct ahd_softc *ahd,
1425 void ahd_clear_critical_section(struct ahd_softc *ahd);
1427 /***************************** Error Recovery *********************************/
1433 } ahd_search_action;
1434 void ahd_done_with_status(struct ahd_softc *ahd,
1435 struct scb *scb, uint32_t status);
1436 int ahd_search_qinfifo(struct ahd_softc *ahd, int target,
1437 char channel, int lun, u_int tag,
1438 role_t role, uint32_t status,
1439 ahd_search_action action);
1440 int ahd_search_disc_list(struct ahd_softc *ahd, int target,
1441 char channel, int lun, u_int tag,
1442 int stop_on_first, int remove,
1444 void ahd_freeze_devq(struct ahd_softc *ahd, struct scb *scb);
1445 int ahd_reset_channel(struct ahd_softc *ahd, char channel,
1446 int initiate_reset);
1447 int ahd_abort_scbs(struct ahd_softc *ahd, int target,
1448 char channel, int lun, u_int tag,
1449 role_t role, uint32_t status);
1450 void ahd_restart(struct ahd_softc *ahd);
1451 void ahd_clear_fifo(struct ahd_softc *ahd, u_int fifo);
1452 void ahd_handle_scb_status(struct ahd_softc *ahd,
1454 void ahd_handle_scsi_status(struct ahd_softc *ahd,
1456 void ahd_calc_residual(struct ahd_softc *ahd,
1458 void ahd_timeout(struct scb *scb);
1459 void ahd_recover_commands(struct ahd_softc *ahd);
1460 /*************************** Utility Functions ********************************/
1461 struct ahd_phase_table_entry*
1462 ahd_lookup_phase_entry(int phase);
1463 void ahd_compile_devinfo(struct ahd_devinfo *devinfo,
1464 u_int our_id, u_int target,
1465 u_int lun, char channel,
1467 /************************** Transfer Negotiation ******************************/
1468 void ahd_find_syncrate(struct ahd_softc *ahd, u_int *period,
1469 u_int *ppr_options, u_int maxsync);
1470 void ahd_validate_offset(struct ahd_softc *ahd,
1471 struct ahd_initiator_tinfo *tinfo,
1472 u_int period, u_int *offset,
1473 int wide, role_t role);
1474 void ahd_validate_width(struct ahd_softc *ahd,
1475 struct ahd_initiator_tinfo *tinfo,
1479 * Negotiation types. These are used to qualify if we should renegotiate
1480 * even if our goal and current transport parameters are identical.
1483 AHD_NEG_TO_GOAL, /* Renegotiate only if goal and curr differ. */
1484 AHD_NEG_IF_NON_ASYNC, /* Renegotiate so long as goal is non-async. */
1485 AHD_NEG_ALWAYS /* Renegotiat even if goal is async. */
1487 int ahd_update_neg_request(struct ahd_softc*,
1488 struct ahd_devinfo*,
1489 struct ahd_tmode_tstate*,
1490 struct ahd_initiator_tinfo*,
1492 void ahd_set_width(struct ahd_softc *ahd,
1493 struct ahd_devinfo *devinfo,
1494 u_int width, u_int type, int paused);
1495 void ahd_set_syncrate(struct ahd_softc *ahd,
1496 struct ahd_devinfo *devinfo,
1497 u_int period, u_int offset,
1499 u_int type, int paused);
1506 void ahd_set_tags(struct ahd_softc *ahd,
1507 struct ahd_devinfo *devinfo,
1510 /**************************** Target Mode *************************************/
1511 #ifdef AHD_TARGET_MODE
1512 void ahd_send_lstate_events(struct ahd_softc *,
1513 struct ahd_tmode_lstate *);
1514 void ahd_handle_en_lun(struct ahd_softc *ahd,
1515 struct cam_sim *sim, union ccb *ccb);
1516 cam_status ahd_find_tmode_devs(struct ahd_softc *ahd,
1517 struct cam_sim *sim, union ccb *ccb,
1518 struct ahd_tmode_tstate **tstate,
1519 struct ahd_tmode_lstate **lstate,
1520 int notfound_failure);
1521 #ifndef AHD_TMODE_ENABLE
1522 #define AHD_TMODE_ENABLE 0
1525 /******************************* Debug ***************************************/
1527 extern uint32_t ahd_debug;
1528 #define AHD_SHOW_MISC 0x00001
1529 #define AHD_SHOW_SENSE 0x00002
1530 #define AHD_SHOW_RECOVERY 0x00004
1531 #define AHD_DUMP_SEEPROM 0x00008
1532 #define AHD_SHOW_TERMCTL 0x00010
1533 #define AHD_SHOW_MEMORY 0x00020
1534 #define AHD_SHOW_MESSAGES 0x00040
1535 #define AHD_SHOW_MODEPTR 0x00080
1536 #define AHD_SHOW_SELTO 0x00100
1537 #define AHD_SHOW_FIFOS 0x00200
1538 #define AHD_SHOW_QFULL 0x00400
1539 #define AHD_SHOW_DV 0x00800
1540 #define AHD_SHOW_MASKED_ERRORS 0x01000
1541 #define AHD_SHOW_QUEUE 0x02000
1542 #define AHD_SHOW_TQIN 0x04000
1543 #define AHD_SHOW_SG 0x08000
1544 #define AHD_SHOW_INT_COALESCING 0x10000
1545 #define AHD_DEBUG_SEQUENCER 0x20000
1547 void ahd_print_scb(struct scb *scb);
1548 void ahd_print_devinfo(struct ahd_softc *ahd,
1549 struct ahd_devinfo *devinfo);
1550 void ahd_dump_sglist(struct scb *scb);
1551 void ahd_dump_all_cards_state(void);
1552 void ahd_dump_card_state(struct ahd_softc *ahd);
1553 int ahd_print_register(ahd_reg_parse_entry_t *table,
1560 void ahd_dump_scbs(struct ahd_softc *ahd);
1561 #endif /* _AIC79XX_H_ */