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MPSAFE locking for the ahc/ahd drivers using lockmgr locks.
[dragonfly.git] / sys / dev / disk / aic7xxx / aic79xx_pci.c
blobe9e7f069bbef69084d8cc495655c00ca9001b911
1 /*
2 * Product specific probe and attach routines for:
3 * aic7901 and aic7902 SCSI controllers
4 *
5 * Copyright (c) 1994-2001 Justin T. Gibbs.
6 * Copyright (c) 2000-2002 Adaptec Inc.
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions, and the following disclaimer,
14 * without modification.
15 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
16 * substantially similar to the "NO WARRANTY" disclaimer below
17 * ("Disclaimer") and any redistribution must be conditioned upon
18 * including a substantially similar Disclaimer requirement for further
19 * binary redistribution.
20 * 3. Neither the names of the above-listed copyright holders nor the names
21 * of any contributors may be used to endorse or promote products derived
22 * from this software without specific prior written permission.
23 *
24 * Alternatively, this software may be distributed under the terms of the
25 * GNU General Public License ("GPL") version 2 as published by the Free
26 * Software Foundation.
27 *
28 * NO WARRANTY
29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
30 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
31 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR
32 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
33 * HOLDERS OR CONTRIBUTORS BE LIABLE FOR SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
34 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
35 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
36 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
37 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
38 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
39 * POSSIBILITY OF SUCH DAMAGES.
40 *
41 * $Id: //depot/aic7xxx/aic7xxx/aic79xx_pci.c#88 $
42 *
43 * $FreeBSD: src/sys/dev/aic7xxx/aic79xx_pci.c,v 1.24 2005/12/04 02:12:40 ru Exp $
44 * $DragonFly: src/sys/dev/disk/aic7xxx/aic79xx_pci.c,v 1.16 2008/02/09 18:13:13 pavalos Exp $
45 */
46
47 #ifdef __linux__
48 #include "aic79xx_osm.h"
49 #include "aic79xx_inline.h"
50 #else
51 #include "aic79xx_osm.h"
52 #include "aic79xx_inline.h"
53 #endif
54
55 static __inline uint64_t
56 ahd_compose_id(u_int device, u_int vendor, u_int subdevice, u_int subvendor)
57 {
58 uint64_t id;
59
60 id = subvendor
61 | (subdevice << 16)
62 | ((uint64_t)vendor << 32)
63 | ((uint64_t)device << 48);
64
65 return (id);
66 }
67
68 #define ID_ALL_MASK 0xFFFFFFFFFFFFFFFFull
69 #define ID_ALL_IROC_MASK 0xFF7FFFFFFFFFFFFFull
70 #define ID_DEV_VENDOR_MASK 0xFFFFFFFF00000000ull
71 #define ID_9005_GENERIC_MASK 0xFFF0FFFF00000000ull
72 #define ID_9005_GENERIC_IROC_MASK 0xFF70FFFF00000000ull
73
74 #define ID_AIC7901 0x800F9005FFFF9005ull
75 #define ID_AHA_29320A 0x8000900500609005ull
76 #define ID_AHA_29320ALP 0x8017900500449005ull
77
78 #define ID_AIC7901A 0x801E9005FFFF9005ull
79 #define ID_AHA_29320LP 0x8014900500449005ull
80
81 #define ID_AIC7902 0x801F9005FFFF9005ull
82 #define ID_AIC7902_B 0x801D9005FFFF9005ull
83 #define ID_AHA_39320 0x8010900500409005ull
84 #define ID_AHA_29320 0x8012900500429005ull
85 #define ID_AHA_29320B 0x8013900500439005ull
86 #define ID_AHA_39320_B 0x8015900500409005ull
87 #define ID_AHA_39320_B_DELL 0x8015900501681028ull
88 #define ID_AHA_39320A 0x8016900500409005ull
89 #define ID_AHA_39320D 0x8011900500419005ull
90 #define ID_AHA_39320D_B 0x801C900500419005ull
91 #define ID_AHA_39320D_HP 0x8011900500AC0E11ull
92 #define ID_AHA_39320D_B_HP 0x801C900500AC0E11ull
93 #define ID_AIC7902_PCI_REV_A4 0x3
94 #define ID_AIC7902_PCI_REV_B0 0x10
95 #define SUBID_HP 0x0E11
96
97 #define DEVID_9005_HOSTRAID(id) ((id) & 0x80)
98
99 #define DEVID_9005_TYPE(id) ((id) & 0xF)
100 #define DEVID_9005_TYPE_HBA 0x0 /* Standard Card */
101 #define DEVID_9005_TYPE_HBA_2EXT 0x1 /* 2 External Ports */
102 #define DEVID_9005_TYPE_MB 0xF /* On Motherboard */
103
104 #define DEVID_9005_MFUNC(id) ((id) & 0x10)
105
106 #define DEVID_9005_PACKETIZED(id) ((id) & 0x8000)
107
108 #define SUBID_9005_TYPE(id) ((id) & 0xF)
109 #define SUBID_9005_TYPE_HBA 0x0 /* Standard Card */
110 #define SUBID_9005_TYPE_MB 0xF /* On Motherboard */
111
112 #define SUBID_9005_AUTOTERM(id) (((id) & 0x10) == 0)
113
114 #define SUBID_9005_LEGACYCONN_FUNC(id) ((id) & 0x20)
115
116 #define SUBID_9005_SEEPTYPE(id) ((id) & 0x0C0) >> 6)
117 #define SUBID_9005_SEEPTYPE_NONE 0x0
118 #define SUBID_9005_SEEPTYPE_4K 0x1
119
120 static ahd_device_setup_t ahd_aic7901_setup;
121 static ahd_device_setup_t ahd_aic7901A_setup;
122 static ahd_device_setup_t ahd_aic7902_setup;
123 static ahd_device_setup_t ahd_aic790X_setup;
124
125 struct ahd_pci_identity ahd_pci_ident_table [] =
126 {
127 /* aic7901 based controllers */
128 {
129 ID_AHA_29320A,
130 ID_ALL_MASK,
131 "Adaptec 29320A Ultra320 SCSI adapter",
132 ahd_aic7901_setup
133 },
134 {
135 ID_AHA_29320ALP,
136 ID_ALL_MASK,
137 "Adaptec 29320ALP Ultra320 SCSI adapter",
138 ahd_aic7901_setup
139 },
140 /* aic7901A based controllers */
141 {
142 ID_AHA_29320LP,
143 ID_ALL_MASK,
144 "Adaptec 29320LP Ultra320 SCSI adapter",
145 ahd_aic7901A_setup
146 },
147 /* aic7902 based controllers */
148 {
149 ID_AHA_29320,
150 ID_ALL_MASK,
151 "Adaptec 29320 Ultra320 SCSI adapter",
152 ahd_aic7902_setup
153 },
154 {
155 ID_AHA_29320B,
156 ID_ALL_MASK,
157 "Adaptec 29320B Ultra320 SCSI adapter",
158 ahd_aic7902_setup
159 },
160 {
161 ID_AHA_39320,
162 ID_ALL_MASK,
163 "Adaptec 39320 Ultra320 SCSI adapter",
164 ahd_aic7902_setup
165 },
166 {
167 ID_AHA_39320_B,
168 ID_ALL_MASK,
169 "Adaptec 39320 Ultra320 SCSI adapter",
170 ahd_aic7902_setup
171 },
172 {
173 ID_AHA_39320_B_DELL,
174 ID_ALL_MASK,
175 "Adaptec (Dell OEM) 39320 Ultra320 SCSI adapter",
176 ahd_aic7902_setup
177 },
178 {
179 ID_AHA_39320A,
180 ID_ALL_MASK,
181 "Adaptec 39320A Ultra320 SCSI adapter",
182 ahd_aic7902_setup
183 },
184 {
185 ID_AHA_39320D,
186 ID_ALL_MASK,
187 "Adaptec 39320D Ultra320 SCSI adapter",
188 ahd_aic7902_setup
189 },
190 {
191 ID_AHA_39320D_HP,
192 ID_ALL_MASK,
193 "Adaptec (HP OEM) 39320D Ultra320 SCSI adapter",
194 ahd_aic7902_setup
195 },
196 {
197 ID_AHA_39320D_B,
198 ID_ALL_MASK,
199 "Adaptec 39320D Ultra320 SCSI adapter",
200 ahd_aic7902_setup
201 },
202 {
203 ID_AHA_39320D_B_HP,
204 ID_ALL_MASK,
205 "Adaptec (HP OEM) 39320D Ultra320 SCSI adapter",
206 ahd_aic7902_setup
207 },
208 /* Generic chip probes for devices we don't know 'exactly' */
209 {
210 ID_AIC7901 & ID_9005_GENERIC_MASK,
211 ID_9005_GENERIC_MASK,
212 "Adaptec AIC7901 Ultra320 SCSI adapter",
213 ahd_aic7901_setup
214 },
215 {
216 ID_AIC7901A & ID_DEV_VENDOR_MASK,
217 ID_DEV_VENDOR_MASK,
218 "Adaptec AIC7901A Ultra320 SCSI adapter",
219 ahd_aic7901A_setup
220 },
221 {
222 ID_AIC7902 & ID_9005_GENERIC_MASK,
223 ID_9005_GENERIC_MASK,
224 "Adaptec AIC7902 Ultra320 SCSI adapter",
225 ahd_aic7902_setup
226 }
227 };
228
229 const u_int ahd_num_pci_devs = NUM_ELEMENTS(ahd_pci_ident_table);
230
231 #define DEVCONFIG 0x40
232 #define PCIXINITPAT 0x0000E000ul
233 #define PCIXINIT_PCI33_66 0x0000E000ul
234 #define PCIXINIT_PCIX50_66 0x0000C000ul
235 #define PCIXINIT_PCIX66_100 0x0000A000ul
236 #define PCIXINIT_PCIX100_133 0x00008000ul
237 #define PCI_BUS_MODES_INDEX(devconfig) \
238 (((devconfig) & PCIXINITPAT) >> 13)
239 static const char *pci_bus_modes[] =
240 {
241 "PCI bus mode unknown",
242 "PCI bus mode unknown",
243 "PCI bus mode unknown",
244 "PCI bus mode unknown",
245 "PCI-X 101-133Mhz",
246 "PCI-X 67-100Mhz",
247 "PCI-X 50-66Mhz",
248 "PCI 33 or 66Mhz"
249 };
250
251 #define TESTMODE 0x00000800ul
252 #define IRDY_RST 0x00000200ul
253 #define FRAME_RST 0x00000100ul
254 #define PCI64BIT 0x00000080ul
255 #define MRDCEN 0x00000040ul
256 #define ENDIANSEL 0x00000020ul
257 #define MIXQWENDIANEN 0x00000008ul
258 #define DACEN 0x00000004ul
259 #define STPWLEVEL 0x00000002ul
260 #define QWENDIANSEL 0x00000001ul
261
262 #define DEVCONFIG1 0x44
263 #define PREQDIS 0x01
264
265 #define CSIZE_LATTIME 0x0c
266 #define CACHESIZE 0x000000fful
267 #define LATTIME 0x0000ff00ul
268
269 static int ahd_check_extport(struct ahd_softc *ahd);
270 static void ahd_configure_termination(struct ahd_softc *ahd,
271 u_int adapter_control);
272 static void ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat);
273
274 struct ahd_pci_identity *
275 ahd_find_pci_device(aic_dev_softc_t pci)
276 {
277 uint64_t full_id;
278 uint16_t device;
279 uint16_t vendor;
280 uint16_t subdevice;
281 uint16_t subvendor;
282 struct ahd_pci_identity *entry;
283 u_int i;
284
285 vendor = aic_pci_read_config(pci, PCIR_DEVVENDOR, /*bytes*/2);
286 device = aic_pci_read_config(pci, PCIR_DEVICE, /*bytes*/2);
287 subvendor = aic_pci_read_config(pci, PCIR_SUBVEND_0, /*bytes*/2);
288 subdevice = aic_pci_read_config(pci, PCIR_SUBDEV_0, /*bytes*/2);
289 full_id = ahd_compose_id(device,
290 vendor,
291 subdevice,
292 subvendor);
293
294 /*
295 * If we are configured to attach to HostRAID
296 * controllers, mask out the IROC/HostRAID bit
297 * in the
298 */
299 if (ahd_attach_to_HostRAID_controllers)
300 full_id &= ID_ALL_IROC_MASK;
301
302 for (i = 0; i < ahd_num_pci_devs; i++) {
303 entry = &ahd_pci_ident_table[i];
304 if (entry->full_id == (full_id & entry->id_mask)) {
305 /* Honor exclusion entries. */
306 if (entry->name == NULL)
307 return (NULL);
308 return (entry);
309 }
310 }
311 return (NULL);
312 }
313
314 int
315 ahd_pci_config(struct ahd_softc *ahd, struct ahd_pci_identity *entry)
316 {
317 struct scb_data *shared_scb_data;
318 u_int command;
319 uint32_t devconfig;
320 uint16_t device;
321 uint16_t subvendor;
322 int error;
323
324 shared_scb_data = NULL;
325 ahd->description = entry->name;
326 /*
327 * Record if this is a HostRAID board.
328 */
329 device = aic_pci_read_config(ahd->dev_softc,
330 PCIR_DEVICE, /*bytes*/2);
331 if (DEVID_9005_HOSTRAID(device))
332 ahd->flags |= AHD_HOSTRAID_BOARD;
333
334 /*
335 * Record if this is an HP board.
336 */
337 subvendor = aic_pci_read_config(ahd->dev_softc,
338 PCIR_SUBVEND_0, /*bytes*/2);
339 if (subvendor == SUBID_HP)
340 ahd->flags |= AHD_HP_BOARD;
341
342 error = entry->setup(ahd);
343 if (error != 0)
344 return (error);
345
346 devconfig = aic_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
347 if ((devconfig & PCIXINITPAT) == PCIXINIT_PCI33_66) {
348 ahd->chip |= AHD_PCI;
349 /* Disable PCIX workarounds when running in PCI mode. */
350 ahd->bugs &= ~AHD_PCIX_BUG_MASK;
351 } else {
352 ahd->chip |= AHD_PCIX;
353 }
354 ahd->bus_description = pci_bus_modes[PCI_BUS_MODES_INDEX(devconfig)];
355
356 aic_power_state_change(ahd, AIC_POWER_STATE_D0);
357
358 error = ahd_pci_map_registers(ahd);
359 if (error != 0)
360 return (error);
361
362 /*
363 * If we need to support high memory, enable dual
364 * address cycles. This bit must be set to enable
365 * high address bit generation even if we are on a
366 * 64bit bus (PCI64BIT set in devconfig).
367 */
368 if ((ahd->flags & (AHD_39BIT_ADDRESSING|AHD_64BIT_ADDRESSING)) != 0) {
369 uint32_t devconfig;
370
371 if (bootverbose)
372 kprintf("%s: Enabling 39Bit Addressing\n",
373 ahd_name(ahd));
374 devconfig = aic_pci_read_config(ahd->dev_softc,
375 DEVCONFIG, /*bytes*/4);
376 devconfig |= DACEN;
377 aic_pci_write_config(ahd->dev_softc, DEVCONFIG,
378 devconfig, /*bytes*/4);
379 }
380
381 /* Ensure busmastering is enabled */
382 command = aic_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
383 command |= PCIM_CMD_BUSMASTEREN;
384 aic_pci_write_config(ahd->dev_softc, PCIR_COMMAND, command, /*bytes*/2);
385
386 error = ahd_softc_init(ahd);
387 if (error != 0)
388 return (error);
389
390 ahd->bus_intr = ahd_pci_intr;
391
392 error = ahd_reset(ahd, /*reinit*/FALSE);
393 if (error != 0)
394 return (ENXIO);
395
396 ahd->pci_cachesize =
397 aic_pci_read_config(ahd->dev_softc, CSIZE_LATTIME,
398 /*bytes*/1) & CACHESIZE;
399 ahd->pci_cachesize *= 4;
400
401 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
402 /* See if we have a SEEPROM and perform auto-term */
403 error = ahd_check_extport(ahd);
404 if (error != 0)
405 return (error);
406
407 /* Core initialization */
408 error = ahd_init(ahd);
409 if (error != 0)
410 return (error);
411
412 /*
413 * Allow interrupts now that we are completely setup.
414 */
415 error = ahd_pci_map_int(ahd);
416 if (error != 0)
417 return (error);
418
419 ahd_lock(ahd);
420 /*
421 * Link this softc in with all other ahd instances.
422 */
423 ahd_softc_insert(ahd);
424 ahd_unlock(ahd);
425 return (0);
426 }
427
428 /*
429 * Perform some simple tests that should catch situations where
430 * our registers are invalidly mapped.
431 */
432 int
433 ahd_pci_test_register_access(struct ahd_softc *ahd)
434 {
435 uint32_t cmd;
436 u_int targpcistat;
437 u_int pci_status1;
438 int error;
439 uint8_t hcntrl;
440
441 error = EIO;
442
443 /*
444 * Enable PCI error interrupt status, but suppress NMIs
445 * generated by SERR raised due to target aborts.
446 */
447 cmd = aic_pci_read_config(ahd->dev_softc, PCIR_COMMAND, /*bytes*/2);
448 aic_pci_write_config(ahd->dev_softc, PCIR_COMMAND,
449 cmd & ~PCIM_CMD_SERRESPEN, /*bytes*/2);
450
451 /*
452 * First a simple test to see if any
453 * registers can be read. Reading
454 * HCNTRL has no side effects and has
455 * at least one bit that is guaranteed to
456 * be zero so it is a good register to
457 * use for this test.
458 */
459 hcntrl = ahd_inb(ahd, HCNTRL);
460 if (hcntrl == 0xFF)
461 goto fail;
462
463 /*
464 * Next create a situation where write combining
465 * or read prefetching could be initiated by the
466 * CPU or host bridge. Our device does not support
467 * either, so look for data corruption and/or flaged
468 * PCI errors. First pause without causing another
469 * chip reset.
470 */
471 hcntrl &= ~CHIPRST;
472 ahd_outb(ahd, HCNTRL, hcntrl|PAUSE);
473 while (ahd_is_paused(ahd) == 0)
474 ;
475
476 /* Clear any PCI errors that occurred before our driver attached. */
477 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
478 targpcistat = ahd_inb(ahd, TARGPCISTAT);
479 ahd_outb(ahd, TARGPCISTAT, targpcistat);
480 pci_status1 = aic_pci_read_config(ahd->dev_softc,
481 PCIR_STATUS + 1, /*bytes*/1);
482 aic_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
483 pci_status1, /*bytes*/1);
484 ahd_set_modes(ahd, AHD_MODE_SCSI, AHD_MODE_SCSI);
485 ahd_outb(ahd, CLRINT, CLRPCIINT);
486
487 ahd_outb(ahd, SEQCTL0, PERRORDIS);
488 ahd_outl(ahd, SRAM_BASE, 0x5aa555aa);
489 if (ahd_inl(ahd, SRAM_BASE) != 0x5aa555aa)
490 goto fail;
491
492 if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
493 u_int targpcistat;
494
495 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
496 targpcistat = ahd_inb(ahd, TARGPCISTAT);
497 if ((targpcistat & STA) != 0)
498 goto fail;
499 }
500
501 error = 0;
502
503 fail:
504 if ((ahd_inb(ahd, INTSTAT) & PCIINT) != 0) {
505
506 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
507 targpcistat = ahd_inb(ahd, TARGPCISTAT);
508
509 /* Silently clear any latched errors. */
510 ahd_outb(ahd, TARGPCISTAT, targpcistat);
511 pci_status1 = aic_pci_read_config(ahd->dev_softc,
512 PCIR_STATUS + 1, /*bytes*/1);
513 aic_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
514 pci_status1, /*bytes*/1);
515 ahd_outb(ahd, CLRINT, CLRPCIINT);
516 }
517 ahd_outb(ahd, SEQCTL0, PERRORDIS|FAILDIS);
518 aic_pci_write_config(ahd->dev_softc, PCIR_COMMAND, cmd, /*bytes*/2);
519 return (error);
520 }
521
522 /*
523 * Check the external port logic for a serial eeprom
524 * and termination/cable detection contrls.
525 */
526 static int
527 ahd_check_extport(struct ahd_softc *ahd)
528 {
529 struct vpd_config vpd;
530 struct seeprom_config *sc;
531 u_int adapter_control;
532 int have_seeprom;
533 int error;
534
535 sc = ahd->seep_config;
536 have_seeprom = ahd_acquire_seeprom(ahd);
537 if (have_seeprom) {
538 u_int start_addr;
539
540 /*
541 * Fetch VPD for this function and parse it.
542 */
543 if (bootverbose)
544 kprintf("%s: Reading VPD from SEEPROM...",
545 ahd_name(ahd));
546
547 /* Address is always in units of 16bit words */
548 start_addr = ((2 * sizeof(*sc))
549 + (sizeof(vpd) * (ahd->channel - 'A'))) / 2;
550
551 error = ahd_read_seeprom(ahd, (uint16_t *)&vpd,
552 start_addr, sizeof(vpd)/2,
553 /*bytestream*/TRUE);
554 if (error == 0)
555 error = ahd_parse_vpddata(ahd, &vpd);
556 if (bootverbose)
557 kprintf("%s: VPD parsing %s\n",
558 ahd_name(ahd),
559 error == 0 ? "successful" : "failed");
560
561 if (bootverbose)
562 kprintf("%s: Reading SEEPROM...", ahd_name(ahd));
563
564 /* Address is always in units of 16bit words */
565 start_addr = (sizeof(*sc) / 2) * (ahd->channel - 'A');
566
567 error = ahd_read_seeprom(ahd, (uint16_t *)sc,
568 start_addr, sizeof(*sc)/2,
569 /*bytestream*/FALSE);
570
571 if (error != 0) {
572 kprintf("Unable to read SEEPROM\n");
573 have_seeprom = 0;
574 } else {
575 have_seeprom = ahd_verify_cksum(sc);
576
577 if (bootverbose) {
578 if (have_seeprom == 0)
579 kprintf ("checksum error\n");
580 else
581 kprintf ("done.\n");
582 }
583 }
584 ahd_release_seeprom(ahd);
585 }
586
587 if (!have_seeprom) {
588 u_int nvram_scb;
589
590 /*
591 * Pull scratch ram settings and treat them as
592 * if they are the contents of an seeprom if
593 * the 'ADPT', 'BIOS', or 'ASPI' signature is found
594 * in SCB 0xFF. We manually compose the data as 16bit
595 * values to avoid endian issues.
596 */
597 ahd_set_scbptr(ahd, 0xFF);
598 nvram_scb = ahd_inb_scbram(ahd, SCB_BASE + NVRAM_SCB_OFFSET);
599 if (nvram_scb != 0xFF
600 && ((ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A'
601 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'D'
602 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P'
603 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'T')
604 || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'B'
605 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'I'
606 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'O'
607 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'S')
608 || (ahd_inb_scbram(ahd, SCB_BASE + 0) == 'A'
609 && ahd_inb_scbram(ahd, SCB_BASE + 1) == 'S'
610 && ahd_inb_scbram(ahd, SCB_BASE + 2) == 'P'
611 && ahd_inb_scbram(ahd, SCB_BASE + 3) == 'I'))) {
612 uint16_t *sc_data;
613 int i;
614
615 ahd_set_scbptr(ahd, nvram_scb);
616 sc_data = (uint16_t *)sc;
617 for (i = 0; i < 64; i += 2)
618 *sc_data++ = ahd_inw_scbram(ahd, SCB_BASE+i);
619 have_seeprom = ahd_verify_cksum(sc);
620 if (have_seeprom)
621 ahd->flags |= AHD_SCB_CONFIG_USED;
622 }
623 }
624
625 #ifdef AHD_DEBUG
626 if (have_seeprom != 0
627 && (ahd_debug & AHD_DUMP_SEEPROM) != 0) {
628 uint16_t *sc_data;
629 int i;
630
631 kprintf("%s: Seeprom Contents:", ahd_name(ahd));
632 sc_data = (uint16_t *)sc;
633 for (i = 0; i < (sizeof(*sc)); i += 2)
634 kprintf("\n\t0x%.4x", sc_data[i]);
635 kprintf("\n");
636 }
637 #endif
638
639 if (!have_seeprom) {
640 if (bootverbose)
641 kprintf("%s: No SEEPROM available.\n", ahd_name(ahd));
642 ahd->flags |= AHD_USEDEFAULTS;
643 error = ahd_default_config(ahd);
644 adapter_control = CFAUTOTERM|CFSEAUTOTERM;
645 kfree(ahd->seep_config, M_DEVBUF);
646 ahd->seep_config = NULL;
647 } else {
648 error = ahd_parse_cfgdata(ahd, sc);
649 adapter_control = sc->adapter_control;
650 }
651 if (error != 0)
652 return (error);
653
654 ahd_configure_termination(ahd, adapter_control);
655
656 return (0);
657 }
658
659 static void
660 ahd_configure_termination(struct ahd_softc *ahd, u_int adapter_control)
661 {
662 int error;
663 u_int sxfrctl1;
664 uint8_t termctl;
665 uint32_t devconfig;
666
667 devconfig = aic_pci_read_config(ahd->dev_softc, DEVCONFIG, /*bytes*/4);
668 devconfig &= ~STPWLEVEL;
669 if ((ahd->flags & AHD_STPWLEVEL_A) != 0)
670 devconfig |= STPWLEVEL;
671 if (bootverbose)
672 kprintf("%s: STPWLEVEL is %s\n",
673 ahd_name(ahd), (devconfig & STPWLEVEL) ? "on" : "off");
674 aic_pci_write_config(ahd->dev_softc, DEVCONFIG, devconfig, /*bytes*/4);
675
676 /* Make sure current sensing is off. */
677 if ((ahd->flags & AHD_CURRENT_SENSING) != 0) {
678 (void)ahd_write_flexport(ahd, FLXADDR_ROMSTAT_CURSENSECTL, 0);
679 }
680
681 /*
682 * Read to sense. Write to set.
683 */
684 error = ahd_read_flexport(ahd, FLXADDR_TERMCTL, &termctl);
685 if ((adapter_control & CFAUTOTERM) == 0) {
686 if (bootverbose)
687 kprintf("%s: Manual Primary Termination\n",
688 ahd_name(ahd));
689 termctl &= ~(FLX_TERMCTL_ENPRILOW|FLX_TERMCTL_ENPRIHIGH);
690 if ((adapter_control & CFSTERM) != 0)
691 termctl |= FLX_TERMCTL_ENPRILOW;
692 if ((adapter_control & CFWSTERM) != 0)
693 termctl |= FLX_TERMCTL_ENPRIHIGH;
694 } else if (error != 0) {
695 kprintf("%s: Primary Auto-Term Sensing failed! "
696 "Using Defaults.\n", ahd_name(ahd));
697 termctl = FLX_TERMCTL_ENPRILOW|FLX_TERMCTL_ENPRIHIGH;
698 }
699
700 if ((adapter_control & CFSEAUTOTERM) == 0) {
701 if (bootverbose)
702 kprintf("%s: Manual Secondary Termination\n",
703 ahd_name(ahd));
704 termctl &= ~(FLX_TERMCTL_ENSECLOW|FLX_TERMCTL_ENSECHIGH);
705 if ((adapter_control & CFSELOWTERM) != 0)
706 termctl |= FLX_TERMCTL_ENSECLOW;
707 if ((adapter_control & CFSEHIGHTERM) != 0)
708 termctl |= FLX_TERMCTL_ENSECHIGH;
709 } else if (error != 0) {
710 kprintf("%s: Secondary Auto-Term Sensing failed! "
711 "Using Defaults.\n", ahd_name(ahd));
712 termctl |= FLX_TERMCTL_ENSECLOW|FLX_TERMCTL_ENSECHIGH;
713 }
714
715 /*
716 * Now set the termination based on what we found.
717 */
718 sxfrctl1 = ahd_inb(ahd, SXFRCTL1) & ~STPWEN;
719 ahd->flags &= ~AHD_TERM_ENB_A;
720 if ((termctl & FLX_TERMCTL_ENPRILOW) != 0) {
721 ahd->flags |= AHD_TERM_ENB_A;
722 sxfrctl1 |= STPWEN;
723 }
724 /* Must set the latch once in order to be effective. */
725 ahd_outb(ahd, SXFRCTL1, sxfrctl1|STPWEN);
726 ahd_outb(ahd, SXFRCTL1, sxfrctl1);
727
728 error = ahd_write_flexport(ahd, FLXADDR_TERMCTL, termctl);
729 if (error != 0) {
730 kprintf("%s: Unable to set termination settings!\n",
731 ahd_name(ahd));
732 } else if (bootverbose) {
733 kprintf("%s: Primary High byte termination %sabled\n",
734 ahd_name(ahd),
735 (termctl & FLX_TERMCTL_ENPRIHIGH) ? "En" : "Dis");
736
737 kprintf("%s: Primary Low byte termination %sabled\n",
738 ahd_name(ahd),
739 (termctl & FLX_TERMCTL_ENPRILOW) ? "En" : "Dis");
740
741 kprintf("%s: Secondary High byte termination %sabled\n",
742 ahd_name(ahd),
743 (termctl & FLX_TERMCTL_ENSECHIGH) ? "En" : "Dis");
744
745 kprintf("%s: Secondary Low byte termination %sabled\n",
746 ahd_name(ahd),
747 (termctl & FLX_TERMCTL_ENSECLOW) ? "En" : "Dis");
748 }
749 return;
750 }
751
752 #define DPE 0x80
753 #define SSE 0x40
754 #define RMA 0x20
755 #define RTA 0x10
756 #define STA 0x08
757 #define DPR 0x01
758
759 static const char *split_status_source[] =
760 {
761 "DFF0",
762 "DFF1",
763 "OVLY",
764 "CMC",
765 };
766
767 static const char *pci_status_source[] =
768 {
769 "DFF0",
770 "DFF1",
771 "SG",
772 "CMC",
773 "OVLY",
774 "NONE",
775 "MSI",
776 "TARG"
777 };
778
779 static const char *split_status_strings[] =
780 {
781 "%s: Received split response in %s.\n",
782 "%s: Received split completion error message in %s\n",
783 "%s: Receive overrun in %s\n",
784 "%s: Count not complete in %s\n",
785 "%s: Split completion data bucket in %s\n",
786 "%s: Split completion address error in %s\n",
787 "%s: Split completion byte count error in %s\n",
788 "%s: Signaled Target-abort to early terminate a split in %s\n"
789 };
790
791 static const char *pci_status_strings[] =
792 {
793 "%s: Data Parity Error has been reported via PERR# in %s\n",
794 "%s: Target initial wait state error in %s\n",
795 "%s: Split completion read data parity error in %s\n",
796 "%s: Split completion address attribute parity error in %s\n",
797 "%s: Received a Target Abort in %s\n",
798 "%s: Received a Master Abort in %s\n",
799 "%s: Signal System Error Detected in %s\n",
800 "%s: Address or Write Phase Parity Error Detected in %s.\n"
801 };
802
803 void
804 ahd_pci_intr(struct ahd_softc *ahd)
805 {
806 uint8_t pci_status[8];
807 ahd_mode_state saved_modes;
808 u_int pci_status1;
809 u_int intstat;
810 u_int i;
811 u_int reg;
812
813 intstat = ahd_inb(ahd, INTSTAT);
814
815 if ((intstat & SPLTINT) != 0)
816 ahd_pci_split_intr(ahd, intstat);
817
818 if ((intstat & PCIINT) == 0)
819 return;
820
821 kprintf("%s: PCI error Interrupt\n", ahd_name(ahd));
822 saved_modes = ahd_save_modes(ahd);
823 ahd_dump_card_state(ahd);
824 ahd_set_modes(ahd, AHD_MODE_CFG, AHD_MODE_CFG);
825 for (i = 0, reg = DF0PCISTAT; i < 8; i++, reg++) {
826
827 if (i == 5)
828 continue;
829 pci_status[i] = ahd_inb(ahd, reg);
830 /* Clear latched errors. So our interrupt deasserts. */
831 ahd_outb(ahd, reg, pci_status[i]);
832 }
833
834 for (i = 0; i < 8; i++) {
835 u_int bit;
836
837 if (i == 5)
838 continue;
839
840 for (bit = 0; bit < 8; bit++) {
841
842 if ((pci_status[i] & (0x1 << bit)) != 0) {
843 static const char *s;
844
845 s = pci_status_strings[bit];
846 if (i == 7/*TARG*/ && bit == 3)
847 s = "%s: Signaled Target Abort\n";
848 kprintf(s, ahd_name(ahd), pci_status_source[i]);
849 }
850 }
851 }
852 pci_status1 = aic_pci_read_config(ahd->dev_softc,
853 PCIR_STATUS + 1, /*bytes*/1);
854 aic_pci_write_config(ahd->dev_softc, PCIR_STATUS + 1,
855 pci_status1, /*bytes*/1);
856 ahd_restore_modes(ahd, saved_modes);
857 ahd_outb(ahd, CLRINT, CLRPCIINT);
858 ahd_unpause(ahd);
859 }
860
861 static void
862 ahd_pci_split_intr(struct ahd_softc *ahd, u_int intstat)
863 {
864 uint8_t split_status[4];
865 uint8_t split_status1[4];
866 uint8_t sg_split_status[2];
867 uint8_t sg_split_status1[2];
868 ahd_mode_state saved_modes;
869 u_int i;
870 uint16_t pcix_status;
871
872 /*
873 * Check for splits in all modes. Modes 0 and 1
874 * additionally have SG engine splits to look at.
875 */
876 pcix_status = aic_pci_read_config(ahd->dev_softc, PCIXR_STATUS,
877 /*bytes*/2);
878 kprintf("%s: PCI Split Interrupt - PCI-X status = 0x%x\n",
879 ahd_name(ahd), pcix_status);
880 saved_modes = ahd_save_modes(ahd);
881 for (i = 0; i < 4; i++) {
882 ahd_set_modes(ahd, i, i);
883
884 split_status[i] = ahd_inb(ahd, DCHSPLTSTAT0);
885 split_status1[i] = ahd_inb(ahd, DCHSPLTSTAT1);
886 /* Clear latched errors. So our interrupt deasserts. */
887 ahd_outb(ahd, DCHSPLTSTAT0, split_status[i]);
888 ahd_outb(ahd, DCHSPLTSTAT1, split_status1[i]);
889 if (i > 1)
890 continue;
891 sg_split_status[i] = ahd_inb(ahd, SGSPLTSTAT0);
892 sg_split_status1[i] = ahd_inb(ahd, SGSPLTSTAT1);
893 /* Clear latched errors. So our interrupt deasserts. */
894 ahd_outb(ahd, SGSPLTSTAT0, sg_split_status[i]);
895 ahd_outb(ahd, SGSPLTSTAT1, sg_split_status1[i]);
896 }
897
898 for (i = 0; i < 4; i++) {
899 u_int bit;
900
901 for (bit = 0; bit < 8; bit++) {
902
903 if ((split_status[i] & (0x1 << bit)) != 0) {
904 static const char *s;
905
906 s = split_status_strings[bit];
907 kprintf(s, ahd_name(ahd),
908 split_status_source[i]);
909 }
910
911 if (i > 1)
912 continue;
913
914 if ((sg_split_status[i] & (0x1 << bit)) != 0) {
915 static const char *s;
916
917 s = split_status_strings[bit];
918 kprintf(s, ahd_name(ahd), "SG");
919 }
920 }
921 }
922 /*
923 * Clear PCI-X status bits.
924 */
925 aic_pci_write_config(ahd->dev_softc, PCIXR_STATUS,
926 pcix_status, /*bytes*/2);
927 ahd_outb(ahd, CLRINT, CLRSPLTINT);
928 ahd_restore_modes(ahd, saved_modes);
929 }
930
931 static int
932 ahd_aic7901_setup(struct ahd_softc *ahd)
933 {
934
935 ahd->chip = AHD_AIC7901;
936 ahd->features = AHD_AIC7901_FE;
937 return (ahd_aic790X_setup(ahd));
938 }
939
940 static int
941 ahd_aic7901A_setup(struct ahd_softc *ahd)
942 {
943
944 ahd->chip = AHD_AIC7901A;
945 ahd->features = AHD_AIC7901A_FE;
946 return (ahd_aic790X_setup(ahd));
947 }
948
949 static int
950 ahd_aic7902_setup(struct ahd_softc *ahd)
951 {
952 ahd->chip = AHD_AIC7902;
953 ahd->features = AHD_AIC7902_FE;
954 return (ahd_aic790X_setup(ahd));
955 }
956
957 static int
958 ahd_aic790X_setup(struct ahd_softc *ahd)
959 {
960 aic_dev_softc_t pci;
961 u_int rev;
962
963 pci = ahd->dev_softc;
964 rev = aic_pci_read_config(pci, PCIR_REVID, /*bytes*/1);
965 if (rev < ID_AIC7902_PCI_REV_A4) {
966 kprintf("%s: Unable to attach to unsupported chip revision %d\n",
967 ahd_name(ahd), rev);
968 aic_pci_write_config(pci, PCIR_COMMAND, 0, /*bytes*/2);
969 return (ENXIO);
970 }
971 ahd->channel = aic_get_pci_function(pci) + 'A';
972 if (rev < ID_AIC7902_PCI_REV_B0) {
973 /*
974 * Enable A series workarounds.
975 */
976 ahd->bugs |= AHD_SENT_SCB_UPDATE_BUG|AHD_ABORT_LQI_BUG
977 | AHD_PKT_BITBUCKET_BUG|AHD_LONG_SETIMO_BUG
978 | AHD_NLQICRC_DELAYED_BUG|AHD_SCSIRST_BUG
979 | AHD_LQO_ATNO_BUG|AHD_AUTOFLUSH_BUG
980 | AHD_CLRLQO_AUTOCLR_BUG|AHD_PCIX_MMAPIO_BUG
981 | AHD_PCIX_CHIPRST_BUG|AHD_PCIX_SCBRAM_RD_BUG
982 | AHD_PKTIZED_STATUS_BUG|AHD_PKT_LUN_BUG
983 | AHD_MDFF_WSCBPTR_BUG|AHD_REG_SLOW_SETTLE_BUG
984 | AHD_SET_MODE_BUG|AHD_BUSFREEREV_BUG
985 | AHD_NONPACKFIFO_BUG|AHD_PACED_NEGTABLE_BUG
986 | AHD_FAINT_LED_BUG;
987
988 /*
989 * IO Cell paramter setup.
990 */
991 AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
992
993 if ((ahd->flags & AHD_HP_BOARD) == 0)
994 AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVA);
995 } else {
996 u_int devconfig1;
997
998 ahd->features |= AHD_RTI|AHD_NEW_IOCELL_OPTS
999 | AHD_NEW_DFCNTRL_OPTS|AHD_FAST_CDB_DELIVERY;
1000 ahd->bugs |= AHD_LQOOVERRUN_BUG|AHD_EARLY_REQ_BUG;
1001
1002 /*
1003 * Some issues have been resolved in the 7901B.
1004 */
1005 if ((ahd->features & AHD_MULTI_FUNC) != 0)
1006 ahd->bugs |= AHD_INTCOLLISION_BUG|AHD_ABORT_LQI_BUG
1007 | AHD_BUSFREEREV_BUG;
1008
1009 /*
1010 * IO Cell paramter setup.
1011 */
1012 AHD_SET_PRECOMP(ahd, AHD_PRECOMP_CUTBACK_29);
1013 AHD_SET_SLEWRATE(ahd, AHD_SLEWRATE_DEF_REVB);
1014 AHD_SET_AMPLITUDE(ahd, AHD_AMPLITUDE_DEF);
1015
1016 /*
1017 * Set the PREQDIS bit for H2B which disables some workaround
1018 * that doesn't work on regular PCI busses.
1019 * XXX - Find out exactly what this does from the hardware
1020 * folks!
1021 */
1022 devconfig1 = aic_pci_read_config(pci, DEVCONFIG1, /*bytes*/1);
1023 aic_pci_write_config(pci, DEVCONFIG1,
1024 devconfig1|PREQDIS, /*bytes*/1);
1025 devconfig1 = aic_pci_read_config(pci, DEVCONFIG1, /*bytes*/1);
1026 }
1027
1028 return (0);
1029 }
DragonFly BSD