xref: /dragonfly/sys/dev/disk/isp/isp_pci.c (revision 3c7e5806)
1 /*-
2  * Copyright (c) 1997-2008 by Matthew Jacob
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 immediately at the beginning of the file, without modification,
10  *    this list of conditions, and the following disclaimer.
11  * 2. The name of the author may not be used to endorse or promote products
12  *    derived from this software without specific prior written permission.
13  *
14  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
18  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24  * SUCH DAMAGE.
25  *
26  * $FreeBSD: src/sys/dev/isp/isp_pci.c,v 1.159 2011/11/16 02:52:24 mjacob Exp $
27  */
28 /*
29  * PCI specific probe and attach routines for Qlogic ISP SCSI adapters.
30  * FreeBSD Version.
31  */
32 
33 #include <sys/param.h>
34 #include <sys/systm.h>
35 #include <sys/kernel.h>
36 #include <sys/module.h>
37 #include <sys/linker.h>
38 #include <sys/firmware.h>
39 #include <sys/bus.h>
40 #include <sys/stdint.h>
41 #include <bus/pci/pcireg.h>
42 #include <bus/pci/pcivar.h>
43 #include <sys/rman.h>
44 #include <sys/malloc.h>
45 #include <sys/uio.h>
46 
47 #include <dev/disk/isp/isp_freebsd.h>
48 
49 static uint32_t isp_pci_rd_reg(ispsoftc_t *, int);
50 static void isp_pci_wr_reg(ispsoftc_t *, int, uint32_t);
51 static uint32_t isp_pci_rd_reg_1080(ispsoftc_t *, int);
52 static void isp_pci_wr_reg_1080(ispsoftc_t *, int, uint32_t);
53 static uint32_t isp_pci_rd_reg_2400(ispsoftc_t *, int);
54 static void isp_pci_wr_reg_2400(ispsoftc_t *, int, uint32_t);
55 static int isp_pci_rd_isr(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *);
56 static int isp_pci_rd_isr_2300(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *);
57 static int isp_pci_rd_isr_2400(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *);
58 static int isp_pci_mbxdma(ispsoftc_t *);
59 static int isp_pci_dmasetup(ispsoftc_t *, XS_T *, void *);
60 
61 
62 static void isp_pci_reset0(ispsoftc_t *);
63 static void isp_pci_reset1(ispsoftc_t *);
64 static void isp_pci_dumpregs(ispsoftc_t *, const char *);
65 
66 static struct ispmdvec mdvec = {
67 	isp_pci_rd_isr,
68 	isp_pci_rd_reg,
69 	isp_pci_wr_reg,
70 	isp_pci_mbxdma,
71 	isp_pci_dmasetup,
72 	isp_common_dmateardown,
73 	isp_pci_reset0,
74 	isp_pci_reset1,
75 	isp_pci_dumpregs,
76 	NULL,
77 	BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
78 };
79 
80 static struct ispmdvec mdvec_1080 = {
81 	isp_pci_rd_isr,
82 	isp_pci_rd_reg_1080,
83 	isp_pci_wr_reg_1080,
84 	isp_pci_mbxdma,
85 	isp_pci_dmasetup,
86 	isp_common_dmateardown,
87 	isp_pci_reset0,
88 	isp_pci_reset1,
89 	isp_pci_dumpregs,
90 	NULL,
91 	BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
92 };
93 
94 static struct ispmdvec mdvec_12160 = {
95 	isp_pci_rd_isr,
96 	isp_pci_rd_reg_1080,
97 	isp_pci_wr_reg_1080,
98 	isp_pci_mbxdma,
99 	isp_pci_dmasetup,
100 	isp_common_dmateardown,
101 	isp_pci_reset0,
102 	isp_pci_reset1,
103 	isp_pci_dumpregs,
104 	NULL,
105 	BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
106 };
107 
108 static struct ispmdvec mdvec_2100 = {
109 	isp_pci_rd_isr,
110 	isp_pci_rd_reg,
111 	isp_pci_wr_reg,
112 	isp_pci_mbxdma,
113 	isp_pci_dmasetup,
114 	isp_common_dmateardown,
115 	isp_pci_reset0,
116 	isp_pci_reset1,
117 	isp_pci_dumpregs
118 };
119 
120 static struct ispmdvec mdvec_2200 = {
121 	isp_pci_rd_isr,
122 	isp_pci_rd_reg,
123 	isp_pci_wr_reg,
124 	isp_pci_mbxdma,
125 	isp_pci_dmasetup,
126 	isp_common_dmateardown,
127 	isp_pci_reset0,
128 	isp_pci_reset1,
129 	isp_pci_dumpregs
130 };
131 
132 static struct ispmdvec mdvec_2300 = {
133 	isp_pci_rd_isr_2300,
134 	isp_pci_rd_reg,
135 	isp_pci_wr_reg,
136 	isp_pci_mbxdma,
137 	isp_pci_dmasetup,
138 	isp_common_dmateardown,
139 	isp_pci_reset0,
140 	isp_pci_reset1,
141 	isp_pci_dumpregs
142 };
143 
144 static struct ispmdvec mdvec_2400 = {
145 	isp_pci_rd_isr_2400,
146 	isp_pci_rd_reg_2400,
147 	isp_pci_wr_reg_2400,
148 	isp_pci_mbxdma,
149 	isp_pci_dmasetup,
150 	isp_common_dmateardown,
151 	isp_pci_reset0,
152 	isp_pci_reset1,
153 	NULL
154 };
155 
156 static struct ispmdvec mdvec_2500 = {
157 	isp_pci_rd_isr_2400,
158 	isp_pci_rd_reg_2400,
159 	isp_pci_wr_reg_2400,
160 	isp_pci_mbxdma,
161 	isp_pci_dmasetup,
162 	isp_common_dmateardown,
163 	isp_pci_reset0,
164 	isp_pci_reset1,
165 	NULL
166 };
167 
168 #ifndef	PCIM_CMD_INVEN
169 #define	PCIM_CMD_INVEN			0x10
170 #endif
171 #ifndef	PCIM_CMD_BUSMASTEREN
172 #define	PCIM_CMD_BUSMASTEREN		0x0004
173 #endif
174 #ifndef	PCIM_CMD_PERRESPEN
175 #define	PCIM_CMD_PERRESPEN		0x0040
176 #endif
177 #ifndef	PCIM_CMD_SEREN
178 #define	PCIM_CMD_SEREN			0x0100
179 #endif
180 #ifndef	PCIM_CMD_INTX_DISABLE
181 #define	PCIM_CMD_INTX_DISABLE		0x0400
182 #endif
183 
184 #ifndef	PCIR_COMMAND
185 #define	PCIR_COMMAND			0x04
186 #endif
187 
188 #ifndef	PCIR_CACHELNSZ
189 #define	PCIR_CACHELNSZ			0x0c
190 #endif
191 
192 #ifndef	PCIR_LATTIMER
193 #define	PCIR_LATTIMER			0x0d
194 #endif
195 
196 #ifndef	PCIR_ROMADDR
197 #define	PCIR_ROMADDR			0x30
198 #endif
199 
200 #ifndef	PCI_VENDOR_QLOGIC
201 #define	PCI_VENDOR_QLOGIC		0x1077
202 #endif
203 
204 #ifndef	PCI_PRODUCT_QLOGIC_ISP1020
205 #define	PCI_PRODUCT_QLOGIC_ISP1020	0x1020
206 #endif
207 
208 #ifndef	PCI_PRODUCT_QLOGIC_ISP1080
209 #define	PCI_PRODUCT_QLOGIC_ISP1080	0x1080
210 #endif
211 
212 #ifndef	PCI_PRODUCT_QLOGIC_ISP10160
213 #define	PCI_PRODUCT_QLOGIC_ISP10160	0x1016
214 #endif
215 
216 #ifndef	PCI_PRODUCT_QLOGIC_ISP12160
217 #define	PCI_PRODUCT_QLOGIC_ISP12160	0x1216
218 #endif
219 
220 #ifndef	PCI_PRODUCT_QLOGIC_ISP1240
221 #define	PCI_PRODUCT_QLOGIC_ISP1240	0x1240
222 #endif
223 
224 #ifndef	PCI_PRODUCT_QLOGIC_ISP1280
225 #define	PCI_PRODUCT_QLOGIC_ISP1280	0x1280
226 #endif
227 
228 #ifndef	PCI_PRODUCT_QLOGIC_ISP2100
229 #define	PCI_PRODUCT_QLOGIC_ISP2100	0x2100
230 #endif
231 
232 #ifndef	PCI_PRODUCT_QLOGIC_ISP2200
233 #define	PCI_PRODUCT_QLOGIC_ISP2200	0x2200
234 #endif
235 
236 #ifndef	PCI_PRODUCT_QLOGIC_ISP2300
237 #define	PCI_PRODUCT_QLOGIC_ISP2300	0x2300
238 #endif
239 
240 #ifndef	PCI_PRODUCT_QLOGIC_ISP2312
241 #define	PCI_PRODUCT_QLOGIC_ISP2312	0x2312
242 #endif
243 
244 #ifndef	PCI_PRODUCT_QLOGIC_ISP2322
245 #define	PCI_PRODUCT_QLOGIC_ISP2322	0x2322
246 #endif
247 
248 #ifndef	PCI_PRODUCT_QLOGIC_ISP2422
249 #define	PCI_PRODUCT_QLOGIC_ISP2422	0x2422
250 #endif
251 
252 #ifndef	PCI_PRODUCT_QLOGIC_ISP2432
253 #define	PCI_PRODUCT_QLOGIC_ISP2432	0x2432
254 #endif
255 
256 #ifndef	PCI_PRODUCT_QLOGIC_ISP2532
257 #define	PCI_PRODUCT_QLOGIC_ISP2532	0x2532
258 #endif
259 
260 #ifndef	PCI_PRODUCT_QLOGIC_ISP6312
261 #define	PCI_PRODUCT_QLOGIC_ISP6312	0x6312
262 #endif
263 
264 #ifndef	PCI_PRODUCT_QLOGIC_ISP6322
265 #define	PCI_PRODUCT_QLOGIC_ISP6322	0x6322
266 #endif
267 
268 #ifndef        PCI_PRODUCT_QLOGIC_ISP5432
269 #define        PCI_PRODUCT_QLOGIC_ISP5432      0x5432
270 #endif
271 
272 #define        PCI_QLOGIC_ISP5432      \
273        ((PCI_PRODUCT_QLOGIC_ISP5432 << 16) | PCI_VENDOR_QLOGIC)
274 
275 #define	PCI_QLOGIC_ISP1020	\
276 	((PCI_PRODUCT_QLOGIC_ISP1020 << 16) | PCI_VENDOR_QLOGIC)
277 
278 #define	PCI_QLOGIC_ISP1080	\
279 	((PCI_PRODUCT_QLOGIC_ISP1080 << 16) | PCI_VENDOR_QLOGIC)
280 
281 #define	PCI_QLOGIC_ISP10160	\
282 	((PCI_PRODUCT_QLOGIC_ISP10160 << 16) | PCI_VENDOR_QLOGIC)
283 
284 #define	PCI_QLOGIC_ISP12160	\
285 	((PCI_PRODUCT_QLOGIC_ISP12160 << 16) | PCI_VENDOR_QLOGIC)
286 
287 #define	PCI_QLOGIC_ISP1240	\
288 	((PCI_PRODUCT_QLOGIC_ISP1240 << 16) | PCI_VENDOR_QLOGIC)
289 
290 #define	PCI_QLOGIC_ISP1280	\
291 	((PCI_PRODUCT_QLOGIC_ISP1280 << 16) | PCI_VENDOR_QLOGIC)
292 
293 #define	PCI_QLOGIC_ISP2100	\
294 	((PCI_PRODUCT_QLOGIC_ISP2100 << 16) | PCI_VENDOR_QLOGIC)
295 
296 #define	PCI_QLOGIC_ISP2200	\
297 	((PCI_PRODUCT_QLOGIC_ISP2200 << 16) | PCI_VENDOR_QLOGIC)
298 
299 #define	PCI_QLOGIC_ISP2300	\
300 	((PCI_PRODUCT_QLOGIC_ISP2300 << 16) | PCI_VENDOR_QLOGIC)
301 
302 #define	PCI_QLOGIC_ISP2312	\
303 	((PCI_PRODUCT_QLOGIC_ISP2312 << 16) | PCI_VENDOR_QLOGIC)
304 
305 #define	PCI_QLOGIC_ISP2322	\
306 	((PCI_PRODUCT_QLOGIC_ISP2322 << 16) | PCI_VENDOR_QLOGIC)
307 
308 #define	PCI_QLOGIC_ISP2422	\
309 	((PCI_PRODUCT_QLOGIC_ISP2422 << 16) | PCI_VENDOR_QLOGIC)
310 
311 #define	PCI_QLOGIC_ISP2432	\
312 	((PCI_PRODUCT_QLOGIC_ISP2432 << 16) | PCI_VENDOR_QLOGIC)
313 
314 #define	PCI_QLOGIC_ISP2532	\
315 	((PCI_PRODUCT_QLOGIC_ISP2532 << 16) | PCI_VENDOR_QLOGIC)
316 
317 #define	PCI_QLOGIC_ISP6312	\
318 	((PCI_PRODUCT_QLOGIC_ISP6312 << 16) | PCI_VENDOR_QLOGIC)
319 
320 #define	PCI_QLOGIC_ISP6322	\
321 	((PCI_PRODUCT_QLOGIC_ISP6322 << 16) | PCI_VENDOR_QLOGIC)
322 
323 /*
324  * Odd case for some AMI raid cards... We need to *not* attach to this.
325  */
326 #define	AMI_RAID_SUBVENDOR_ID	0x101e
327 
328 #define	IO_MAP_REG	0x10
329 #define	MEM_MAP_REG	0x14
330 
331 #define	PCI_DFLT_LTNCY	0x40
332 #define	PCI_DFLT_LNSZ	0x10
333 
334 static int isp_pci_probe (device_t);
335 static int isp_pci_attach (device_t);
336 static int isp_pci_detach (device_t);
337 
338 
339 #define	ISP_PCD(isp)	((struct isp_pcisoftc *)isp)->pci_dev
340 struct isp_pcisoftc {
341 	ispsoftc_t			pci_isp;
342 	device_t			pci_dev;
343 	struct resource *		regs;
344 	void *				irq;
345 	int				irq_type;
346 	int				iqd;
347 	int				rtp;
348 	int				rgd;
349 	void *				ih;
350 	int16_t				pci_poff[_NREG_BLKS];
351 	bus_dma_tag_t			dmat;
352 };
353 
354 static int isp_msi_enable = 1;
355 TUNABLE_INT("hw.isp.msi.enable", &isp_msi_enable);
356 
357 static device_method_t isp_pci_methods[] = {
358 	/* Device interface */
359 	DEVMETHOD(device_probe,		isp_pci_probe),
360 	DEVMETHOD(device_attach,	isp_pci_attach),
361 	DEVMETHOD(device_detach,	isp_pci_detach),
362 	DEVMETHOD_END
363 };
364 
365 static driver_t isp_pci_driver = {
366 	"isp", isp_pci_methods, sizeof (struct isp_pcisoftc)
367 };
368 static devclass_t isp_devclass;
369 DRIVER_MODULE(isp, pci, isp_pci_driver, isp_devclass, NULL, NULL);
370 
371 static int
372 isp_pci_probe(device_t dev)
373 {
374 	switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
375 	case PCI_QLOGIC_ISP1020:
376 		device_set_desc(dev, "Qlogic ISP 1020/1040 PCI SCSI Adapter");
377 		break;
378 	case PCI_QLOGIC_ISP1080:
379 		device_set_desc(dev, "Qlogic ISP 1080 PCI SCSI Adapter");
380 		break;
381 	case PCI_QLOGIC_ISP1240:
382 		device_set_desc(dev, "Qlogic ISP 1240 PCI SCSI Adapter");
383 		break;
384 	case PCI_QLOGIC_ISP1280:
385 		device_set_desc(dev, "Qlogic ISP 1280 PCI SCSI Adapter");
386 		break;
387 	case PCI_QLOGIC_ISP10160:
388 		device_set_desc(dev, "Qlogic ISP 10160 PCI SCSI Adapter");
389 		break;
390 	case PCI_QLOGIC_ISP12160:
391 		if (pci_get_subvendor(dev) == AMI_RAID_SUBVENDOR_ID) {
392 			return (ENXIO);
393 		}
394 		device_set_desc(dev, "Qlogic ISP 12160 PCI SCSI Adapter");
395 		break;
396 	case PCI_QLOGIC_ISP2100:
397 		device_set_desc(dev, "Qlogic ISP 2100 PCI FC-AL Adapter");
398 		break;
399 	case PCI_QLOGIC_ISP2200:
400 		device_set_desc(dev, "Qlogic ISP 2200 PCI FC-AL Adapter");
401 		break;
402 	case PCI_QLOGIC_ISP2300:
403 		device_set_desc(dev, "Qlogic ISP 2300 PCI FC-AL Adapter");
404 		break;
405 	case PCI_QLOGIC_ISP2312:
406 		device_set_desc(dev, "Qlogic ISP 2312 PCI FC-AL Adapter");
407 		break;
408 	case PCI_QLOGIC_ISP2322:
409 		device_set_desc(dev, "Qlogic ISP 2322 PCI FC-AL Adapter");
410 		break;
411 	case PCI_QLOGIC_ISP2422:
412 		device_set_desc(dev, "Qlogic ISP 2422 PCI FC-AL Adapter");
413 		break;
414 	case PCI_QLOGIC_ISP2432:
415 		device_set_desc(dev, "Qlogic ISP 2432 PCI FC-AL Adapter");
416 		break;
417 	case PCI_QLOGIC_ISP2532:
418 		device_set_desc(dev, "Qlogic ISP 2532 PCI FC-AL Adapter");
419 		break;
420 	case PCI_QLOGIC_ISP5432:
421 		device_set_desc(dev, "Qlogic ISP 5432 PCI FC-AL Adapter");
422 		break;
423 	case PCI_QLOGIC_ISP6312:
424 		device_set_desc(dev, "Qlogic ISP 6312 PCI FC-AL Adapter");
425 		break;
426 	case PCI_QLOGIC_ISP6322:
427 		device_set_desc(dev, "Qlogic ISP 6322 PCI FC-AL Adapter");
428 		break;
429 	default:
430 		return (ENXIO);
431 	}
432 	if (isp_announced == 0 && bootverbose) {
433 		kprintf("Qlogic ISP Driver, FreeBSD Version %d.%d, "
434 		    "Core Version %d.%d\n",
435 		    ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
436 		    ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
437 		isp_announced++;
438 	}
439 	/*
440 	 * XXXX: Here is where we might load the f/w module
441 	 * XXXX: (or increase a reference count to it).
442 	 */
443 	return (BUS_PROBE_DEFAULT);
444 }
445 
446 static void
447 isp_get_generic_options(device_t dev, ispsoftc_t *isp, int *nvp)
448 {
449 	int tval;
450 
451 	/*
452 	 * Figure out if we're supposed to skip this one.
453 	 */
454 	tval = 0;
455 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "disable", &tval) == 0 && tval) {
456 		device_printf(dev, "disabled at user request\n");
457 		isp->isp_osinfo.disabled = 1;
458 		return;
459 	}
460 
461 	tval = 0;
462 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "fwload_disable", &tval) == 0 && tval != 0) {
463 		isp->isp_confopts |= ISP_CFG_NORELOAD;
464 	}
465 	tval = 0;
466 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "ignore_nvram", &tval) == 0 && tval != 0) {
467 		isp->isp_confopts |= ISP_CFG_NONVRAM;
468 	}
469 	tval = 0;
470 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "debug", &tval);
471 	if (tval) {
472 		isp->isp_dblev = tval;
473 	} else {
474 		isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
475 	}
476 	if (bootverbose) {
477 		isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO;
478 	}
479 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "vports", &tval);
480 	if (tval > 0 && tval < 127) {
481 		*nvp =  tval;
482 	} else {
483 		*nvp = 0;
484 	}
485 	tval = 1;
486 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "autoconfig", &tval);
487 	isp_autoconfig = tval;
488 	tval = 7;
489 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "quickboot_time", &tval);
490 	isp_quickboot_time = tval;
491 
492 	tval = 0;
493 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "forcemulti", &tval) == 0 && tval != 0) {
494 		isp->isp_osinfo.forcemulti = 1;
495 	}
496 }
497 
498 static void
499 isp_get_pci_options(device_t dev, int *m1, int *m2)
500 {
501 	int tval;
502 	/*
503 	 * Which we should try first - memory mapping or i/o mapping?
504 	 *
505 	 * We used to try memory first followed by i/o on alpha, otherwise
506 	 * the reverse, but we should just try memory first all the time now.
507 	 */
508 	*m1 = PCIM_CMD_MEMEN;
509 	*m2 = PCIM_CMD_PORTEN;
510 
511 	tval = 0;
512 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "prefer_iomap", &tval) == 0 && tval != 0) {
513 		*m1 = PCIM_CMD_PORTEN;
514 		*m2 = PCIM_CMD_MEMEN;
515 	}
516 	tval = 0;
517 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "prefer_memmap", &tval) == 0 && tval != 0) {
518 		*m1 = PCIM_CMD_MEMEN;
519 		*m2 = PCIM_CMD_PORTEN;
520 	}
521 }
522 
523 static void
524 isp_get_specific_options(device_t dev, int chan, ispsoftc_t *isp)
525 {
526 	const char *sptr;
527 	int tval;
528 
529 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "iid", &tval)) {
530 		if (IS_FC(isp)) {
531 			ISP_FC_PC(isp, chan)->default_id = 109 - chan;
532 		} else {
533 			ISP_SPI_PC(isp, chan)->iid = 7;
534 		}
535 	} else {
536 		if (IS_FC(isp)) {
537 			ISP_FC_PC(isp, chan)->default_id = tval - chan;
538 		} else {
539 			ISP_SPI_PC(isp, chan)->iid = tval;
540 		}
541 		isp->isp_confopts |= ISP_CFG_OWNLOOPID;
542 	}
543 
544 	tval = -1;
545 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "role", &tval) == 0) {
546 		switch (tval) {
547 		case ISP_ROLE_NONE:
548 		case ISP_ROLE_INITIATOR:
549 		case ISP_ROLE_TARGET:
550 		case ISP_ROLE_INITIATOR|ISP_ROLE_TARGET:
551 			device_printf(dev, "setting role to 0x%x\n", tval);
552 			break;
553 		default:
554 			tval = -1;
555 			break;
556 		}
557 	}
558 	if (tval == -1) {
559 		tval = ISP_DEFAULT_ROLES;
560 	}
561 
562 	if (IS_SCSI(isp)) {
563 		ISP_SPI_PC(isp, chan)->def_role = tval;
564 		return;
565 	}
566 	ISP_FC_PC(isp, chan)->def_role = tval;
567 
568 	tval = 0;
569 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "fullduplex", &tval) == 0 && tval != 0) {
570 		isp->isp_confopts |= ISP_CFG_FULL_DUPLEX;
571 	}
572 	sptr = NULL;
573 	if (resource_string_value(device_get_name(dev), device_get_unit(dev), "topology", &sptr) == 0 && sptr != NULL) {
574 		if (strcmp(sptr, "lport") == 0) {
575 			isp->isp_confopts |= ISP_CFG_LPORT;
576 		} else if (strcmp(sptr, "nport") == 0) {
577 			isp->isp_confopts |= ISP_CFG_NPORT;
578 		} else if (strcmp(sptr, "lport-only") == 0) {
579 			isp->isp_confopts |= ISP_CFG_LPORT_ONLY;
580 		} else if (strcmp(sptr, "nport-only") == 0) {
581 			isp->isp_confopts |= ISP_CFG_NPORT_ONLY;
582 		}
583 	}
584 
585 	/*
586 	 * Because the resource_*_value functions can neither return
587 	 * 64 bit integer values, nor can they be directly coerced
588 	 * to interpret the right hand side of the assignment as
589 	 * you want them to interpret it, we have to force WWN
590 	 * hint replacement to specify WWN strings with a leading
591 	 * 'w' (e..g w50000000aaaa0001). Sigh.
592 	 */
593 	sptr = NULL;
594 	tval = resource_string_value(device_get_name(dev), device_get_unit(dev), "portwwn", &sptr);
595 	if (tval == 0 && sptr != NULL && *sptr++ == 'w') {
596 		char *eptr = NULL;
597 		ISP_FC_PC(isp, chan)->def_wwpn = strtouq(sptr, &eptr, 16);
598 		if (eptr < sptr + 16 || ISP_FC_PC(isp, chan)->def_wwpn == -1) {
599 			device_printf(dev, "mangled portwwn hint '%s'\n", sptr);
600 			ISP_FC_PC(isp, chan)->def_wwpn = 0;
601 		}
602 	}
603 
604 	sptr = NULL;
605 	tval = resource_string_value(device_get_name(dev), device_get_unit(dev), "nodewwn", &sptr);
606 	if (tval == 0 && sptr != NULL && *sptr++ == 'w') {
607 		char *eptr = NULL;
608 		ISP_FC_PC(isp, chan)->def_wwnn = strtouq(sptr, &eptr, 16);
609 		if (eptr < sptr + 16 || ISP_FC_PC(isp, chan)->def_wwnn == 0) {
610 			device_printf(dev, "mangled nodewwn hint '%s'\n", sptr);
611 			ISP_FC_PC(isp, chan)->def_wwnn = 0;
612 		}
613 	}
614 
615 	tval = 0;
616 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "hysteresis", &tval);
617 	if (tval >= 0 && tval < 256) {
618 		ISP_FC_PC(isp, chan)->hysteresis = tval;
619 	} else {
620 		ISP_FC_PC(isp, chan)->hysteresis = isp_fabric_hysteresis;
621 	}
622 
623 	tval = -1;
624 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "loop_down_limit", &tval);
625 	if (tval >= 0 && tval < 0xffff) {
626 		ISP_FC_PC(isp, chan)->loop_down_limit = tval;
627 	} else {
628 		ISP_FC_PC(isp, chan)->loop_down_limit = isp_loop_down_limit;
629 	}
630 
631 	tval = -1;
632 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "gone_device_time", &tval);
633 	if (tval >= 0 && tval < 0xffff) {
634 		ISP_FC_PC(isp, chan)->gone_device_time = tval;
635 	} else {
636 		ISP_FC_PC(isp, chan)->gone_device_time = isp_gone_device_time;
637 	}
638 }
639 
640 static int
641 isp_pci_attach(device_t dev)
642 {
643 	int i, m1, m2, locksetup = 0;
644 	int isp_nvports = 0;
645 	uint32_t data, cmd, linesz, did;
646 	struct isp_pcisoftc *pcs;
647 	ispsoftc_t *isp;
648 	size_t psize, xsize;
649 	char fwname[32];
650 	u_int irq_flags;
651 
652 	pcs = device_get_softc(dev);
653 	if (pcs == NULL) {
654 		device_printf(dev, "cannot get softc\n");
655 		return (ENOMEM);
656 	}
657 	memset(pcs, 0, sizeof (*pcs));
658 
659 	pcs->pci_dev = dev;
660 	isp = &pcs->pci_isp;
661 	isp->isp_dev = dev;
662 	isp->isp_nchan = 1;
663 
664 	/*
665 	 * Get Generic Options
666 	 */
667 	isp_get_generic_options(dev, isp, &isp_nvports);
668 
669 	/*
670 	 * Check to see if options have us disabled
671 	 */
672 	if (isp->isp_osinfo.disabled) {
673 		/*
674 		 * But return zero to preserve unit numbering
675 		 */
676 		return (0);
677 	}
678 
679 	/*
680 	 * Get PCI options- which in this case are just mapping preferences.
681 	 */
682 	isp_get_pci_options(dev, &m1, &m2);
683 
684 	linesz = PCI_DFLT_LNSZ;
685 	pcs->irq = pcs->regs = NULL;
686 	pcs->rgd = pcs->rtp = pcs->iqd = 0;
687 
688 	cmd = pci_read_config(dev, PCIR_COMMAND, 2);
689 	if (cmd & m1) {
690 		pcs->rtp = (m1 == PCIM_CMD_MEMEN)? SYS_RES_MEMORY : SYS_RES_IOPORT;
691 		pcs->rgd = (m1 == PCIM_CMD_MEMEN)? MEM_MAP_REG : IO_MAP_REG;
692 		pcs->regs = bus_alloc_resource_any(dev, pcs->rtp, &pcs->rgd, RF_ACTIVE);
693 	}
694 	if (pcs->regs == NULL && (cmd & m2)) {
695 		pcs->rtp = (m2 == PCIM_CMD_MEMEN)? SYS_RES_MEMORY : SYS_RES_IOPORT;
696 		pcs->rgd = (m2 == PCIM_CMD_MEMEN)? MEM_MAP_REG : IO_MAP_REG;
697 		pcs->regs = bus_alloc_resource_any(dev, pcs->rtp, &pcs->rgd, RF_ACTIVE);
698 	}
699 	if (pcs->regs == NULL) {
700 		device_printf(dev, "unable to map any ports\n");
701 		goto bad;
702 	}
703 	if (bootverbose) {
704 		device_printf(dev, "using %s space register mapping\n", (pcs->rgd == IO_MAP_REG)? "I/O" : "Memory");
705 	}
706 	isp->isp_bus_tag = rman_get_bustag(pcs->regs);
707 	isp->isp_bus_handle = rman_get_bushandle(pcs->regs);
708 
709 	pcs->pci_dev = dev;
710 	pcs->pci_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
711 	pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS_OFF;
712 	pcs->pci_poff[SXP_BLOCK >> _BLK_REG_SHFT] = PCI_SXP_REGS_OFF;
713 	pcs->pci_poff[RISC_BLOCK >> _BLK_REG_SHFT] = PCI_RISC_REGS_OFF;
714 	pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
715 
716 	switch (pci_get_devid(dev)) {
717 	case PCI_QLOGIC_ISP1020:
718 		did = 0x1040;
719 		isp->isp_mdvec = &mdvec;
720 		isp->isp_type = ISP_HA_SCSI_UNKNOWN;
721 		break;
722 	case PCI_QLOGIC_ISP1080:
723 		did = 0x1080;
724 		isp->isp_mdvec = &mdvec_1080;
725 		isp->isp_type = ISP_HA_SCSI_1080;
726 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
727 		break;
728 	case PCI_QLOGIC_ISP1240:
729 		did = 0x1080;
730 		isp->isp_mdvec = &mdvec_1080;
731 		isp->isp_type = ISP_HA_SCSI_1240;
732 		isp->isp_nchan = 2;
733 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
734 		break;
735 	case PCI_QLOGIC_ISP1280:
736 		did = 0x1080;
737 		isp->isp_mdvec = &mdvec_1080;
738 		isp->isp_type = ISP_HA_SCSI_1280;
739 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
740 		break;
741 	case PCI_QLOGIC_ISP10160:
742 		did = 0x12160;
743 		isp->isp_mdvec = &mdvec_12160;
744 		isp->isp_type = ISP_HA_SCSI_10160;
745 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
746 		break;
747 	case PCI_QLOGIC_ISP12160:
748 		did = 0x12160;
749 		isp->isp_nchan = 2;
750 		isp->isp_mdvec = &mdvec_12160;
751 		isp->isp_type = ISP_HA_SCSI_12160;
752 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
753 		break;
754 	case PCI_QLOGIC_ISP2100:
755 		did = 0x2100;
756 		isp->isp_mdvec = &mdvec_2100;
757 		isp->isp_type = ISP_HA_FC_2100;
758 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2100_OFF;
759 		if (pci_get_revid(dev) < 3) {
760 			/*
761 			 * XXX: Need to get the actual revision
762 			 * XXX: number of the 2100 FB. At any rate,
763 			 * XXX: lower cache line size for early revision
764 			 * XXX; boards.
765 			 */
766 			linesz = 1;
767 		}
768 		break;
769 	case PCI_QLOGIC_ISP2200:
770 		did = 0x2200;
771 		isp->isp_mdvec = &mdvec_2200;
772 		isp->isp_type = ISP_HA_FC_2200;
773 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2100_OFF;
774 		break;
775 	case PCI_QLOGIC_ISP2300:
776 		did = 0x2300;
777 		isp->isp_mdvec = &mdvec_2300;
778 		isp->isp_type = ISP_HA_FC_2300;
779 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
780 		break;
781 	case PCI_QLOGIC_ISP2312:
782 	case PCI_QLOGIC_ISP6312:
783 		did = 0x2300;
784 		isp->isp_mdvec = &mdvec_2300;
785 		isp->isp_type = ISP_HA_FC_2312;
786 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
787 		break;
788 	case PCI_QLOGIC_ISP2322:
789 	case PCI_QLOGIC_ISP6322:
790 		did = 0x2322;
791 		isp->isp_mdvec = &mdvec_2300;
792 		isp->isp_type = ISP_HA_FC_2322;
793 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
794 		break;
795 	case PCI_QLOGIC_ISP2422:
796 	case PCI_QLOGIC_ISP2432:
797 		did = 0x2400;
798 		isp->isp_nchan += isp_nvports;
799 		isp->isp_mdvec = &mdvec_2400;
800 		isp->isp_type = ISP_HA_FC_2400;
801 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
802 		break;
803 	case PCI_QLOGIC_ISP2532:
804 		did = 0x2500;
805 		isp->isp_nchan += isp_nvports;
806 		isp->isp_mdvec = &mdvec_2500;
807 		isp->isp_type = ISP_HA_FC_2500;
808 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
809 		break;
810 	case PCI_QLOGIC_ISP5432:
811 		did = 0x2500;
812 		isp->isp_mdvec = &mdvec_2500;
813 		isp->isp_type = ISP_HA_FC_2500;
814 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
815 		break;
816 	default:
817 		device_printf(dev, "unknown device type\n");
818 		goto bad;
819 		break;
820 	}
821 	isp->isp_revision = pci_get_revid(dev);
822 
823 	if (IS_FC(isp)) {
824 		psize = sizeof (fcparam);
825 		xsize = sizeof (struct isp_fc);
826 	} else {
827 		psize = sizeof (sdparam);
828 		xsize = sizeof (struct isp_spi);
829 	}
830 	psize *= isp->isp_nchan;
831 	xsize *= isp->isp_nchan;
832 	isp->isp_param = kmalloc(psize, M_DEVBUF, M_NOWAIT | M_ZERO);
833 	if (isp->isp_param == NULL) {
834 		device_printf(dev, "cannot allocate parameter data\n");
835 		goto bad;
836 	}
837 	isp->isp_osinfo.pc.ptr = kmalloc(xsize, M_DEVBUF, M_NOWAIT | M_ZERO);
838 	if (isp->isp_osinfo.pc.ptr == NULL) {
839 		device_printf(dev, "cannot allocate parameter data\n");
840 		goto bad;
841 	}
842 
843 	/*
844 	 * Now that we know who we are (roughly) get/set specific options
845 	 */
846 	for (i = 0; i < isp->isp_nchan; i++) {
847 		isp_get_specific_options(dev, i, isp);
848 	}
849 
850 	/*
851 	 * The 'it' suffix really only matters for SCSI cards in target mode.
852 	 */
853 	isp->isp_osinfo.fw = NULL;
854 	if (IS_SCSI(isp) && (ISP_SPI_PC(isp, 0)->def_role & ISP_ROLE_TARGET)) {
855 		ksnprintf(fwname, sizeof (fwname), "isp_%04x_it", did);
856 		isp->isp_osinfo.fw = firmware_get(fwname);
857 	} else if (IS_24XX(isp) && (isp->isp_nchan > 1 || isp->isp_osinfo.forcemulti)) {
858 		ksnprintf(fwname, sizeof (fwname), "isp_%04x_multi", did);
859 		isp->isp_osinfo.fw = firmware_get(fwname);
860 	}
861 	if (isp->isp_osinfo.fw == NULL) {
862 		ksnprintf(fwname, sizeof (fwname), "isp_%04x", did);
863 #ifdef USE_SMALLER_2100_FIRMWARE
864 		if (IS_21XX(isp)) {
865 			ksnprintf(fwname, sizeof (fwname), "%s_variant_1", fwname);
866 		}
867 #endif
868 		isp->isp_osinfo.fw = firmware_get(fwname);
869 	}
870 	if (isp->isp_osinfo.fw != NULL) {
871 		isp->isp_mdvec->dv_ispfw = isp->isp_osinfo.fw->data;
872 	}
873 
874 	/*
875 	 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER
876 	 * are set.
877 	 */
878 	cmd |= PCIM_CMD_SEREN | PCIM_CMD_PERRESPEN |
879 		PCIM_CMD_BUSMASTEREN | PCIM_CMD_INVEN;
880 
881 	if (IS_2300(isp)) {	/* per QLogic errata */
882 		cmd &= ~PCIM_CMD_INVEN;
883 	}
884 
885 	if (IS_2322(isp) || pci_get_devid(dev) == PCI_QLOGIC_ISP6312) {
886 		cmd &= ~PCIM_CMD_INTX_DISABLE;
887 	}
888 
889 	if (IS_24XX(isp)) {
890 		cmd &= ~PCIM_CMD_INTX_DISABLE;
891 	}
892 
893 	pci_write_config(dev, PCIR_COMMAND, cmd, 2);
894 
895 	/*
896 	 * Make sure the Cache Line Size register is set sensibly.
897 	 */
898 	data = pci_read_config(dev, PCIR_CACHELNSZ, 1);
899 	if (data == 0 || (linesz != PCI_DFLT_LNSZ && data != linesz)) {
900 		isp_prt(isp, ISP_LOGCONFIG, "set PCI line size to %d from %d", linesz, data);
901 		data = linesz;
902 		pci_write_config(dev, PCIR_CACHELNSZ, data, 1);
903 	}
904 
905 	/*
906 	 * Make sure the Latency Timer is sane.
907 	 */
908 	data = pci_read_config(dev, PCIR_LATTIMER, 1);
909 	if (data < PCI_DFLT_LTNCY) {
910 		data = PCI_DFLT_LTNCY;
911 		isp_prt(isp, ISP_LOGCONFIG, "set PCI latency to %d", data);
912 		pci_write_config(dev, PCIR_LATTIMER, data, 1);
913 	}
914 
915 	/*
916 	 * Make sure we've disabled the ROM.
917 	 */
918 	data = pci_read_config(dev, PCIR_ROMADDR, 4);
919 	data &= ~1;
920 	pci_write_config(dev, PCIR_ROMADDR, data, 4);
921 
922 	pcs->irq_type = pci_alloc_1intr(dev, isp_msi_enable, &pcs->iqd,
923 	    &irq_flags);
924 	pcs->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &pcs->iqd,
925 	    irq_flags);
926 	if (pcs->irq == NULL) {
927 		device_printf(dev, "could not allocate interrupt\n");
928 		goto bad;
929 	}
930 
931 	/* Make sure the lock is set up. */
932 	lockinit(&isp->isp_osinfo.lock, "isp", 0, LK_CANRECURSE);
933 	locksetup++;
934 
935 	if (isp_setup_intr(dev, pcs->irq, ISP_IFLAGS, isp_platform_intr, isp, &pcs->ih, NULL)) {
936 		device_printf(dev, "could not setup interrupt\n");
937 		goto bad;
938 	}
939 
940 	/*
941 	 * Last minute checks...
942 	 */
943 	if (IS_23XX(isp) || IS_24XX(isp)) {
944 		isp->isp_port = pci_get_function(dev);
945 	}
946 
947 	/*
948 	 * Make sure we're in reset state.
949 	 */
950 	ISP_LOCK(isp);
951 	isp_reset(isp, 1);
952 	if (isp->isp_state != ISP_RESETSTATE) {
953 		ISP_UNLOCK(isp);
954 		goto bad;
955 	}
956 	isp_init(isp);
957 	if (isp->isp_state == ISP_INITSTATE) {
958 		isp->isp_state = ISP_RUNSTATE;
959 	}
960 	ISP_UNLOCK(isp);
961 	if (isp_attach(isp)) {
962 		ISP_LOCK(isp);
963 		isp_uninit(isp);
964 		ISP_UNLOCK(isp);
965 		goto bad;
966 	}
967 	return (0);
968 
969 bad:
970 	if (pcs->ih) {
971 		(void) bus_teardown_intr(dev, pcs->irq, pcs->ih);
972 	}
973 	if (locksetup) {
974 		lockuninit(&isp->isp_osinfo.lock);
975 	}
976 	if (pcs->irq) {
977 		(void) bus_release_resource(dev, SYS_RES_IRQ, pcs->iqd, pcs->irq);
978 	}
979 	if (pcs->irq_type == PCI_INTR_TYPE_MSI) {
980 		pci_release_msi(dev);
981 	}
982 	if (pcs->regs) {
983 		(void) bus_release_resource(dev, pcs->rtp, pcs->rgd, pcs->regs);
984 	}
985 	if (pcs->pci_isp.isp_param) {
986 		kfree(pcs->pci_isp.isp_param, M_DEVBUF);
987 		pcs->pci_isp.isp_param = NULL;
988 	}
989 	if (pcs->pci_isp.isp_osinfo.pc.ptr) {
990 		kfree(pcs->pci_isp.isp_osinfo.pc.ptr, M_DEVBUF);
991 		pcs->pci_isp.isp_osinfo.pc.ptr = NULL;
992 	}
993 	return (ENXIO);
994 }
995 
996 static int
997 isp_pci_detach(device_t dev)
998 {
999 	struct isp_pcisoftc *pcs;
1000 	ispsoftc_t *isp;
1001 	int status;
1002 
1003 	pcs = device_get_softc(dev);
1004 	if (pcs == NULL) {
1005 		return (ENXIO);
1006 	}
1007 	isp = (ispsoftc_t *) pcs;
1008 	status = isp_detach(isp);
1009 	if (status)
1010 		return (status);
1011 	ISP_LOCK(isp);
1012 	isp_uninit(isp);
1013 	if (pcs->ih) {
1014 		(void) bus_teardown_intr(dev, pcs->irq, pcs->ih);
1015 	}
1016 	ISP_UNLOCK(isp);
1017 	lockuninit(&isp->isp_osinfo.lock);
1018 	(void) bus_release_resource(dev, SYS_RES_IRQ, pcs->iqd, pcs->irq);
1019 	if (pcs->irq_type == PCI_INTR_TYPE_MSI) {
1020 		pci_release_msi(dev);
1021 	}
1022 	(void) bus_release_resource(dev, pcs->rtp, pcs->rgd, pcs->regs);
1023 	if (pcs->pci_isp.isp_param) {
1024 		kfree(pcs->pci_isp.isp_param, M_DEVBUF);
1025 		pcs->pci_isp.isp_param = NULL;
1026 	}
1027 	if (pcs->pci_isp.isp_osinfo.pc.ptr) {
1028 		kfree(pcs->pci_isp.isp_osinfo.pc.ptr, M_DEVBUF);
1029 		pcs->pci_isp.isp_osinfo.pc.ptr = NULL;
1030 	}
1031 	return (0);
1032 }
1033 
1034 #define	IspVirt2Off(a, x)	\
1035 	(((struct isp_pcisoftc *)a)->pci_poff[((x) & _BLK_REG_MASK) >> \
1036 	_BLK_REG_SHFT] + ((x) & 0xfff))
1037 
1038 #define	BXR2(isp, off)		\
1039 	bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off)
1040 #define	BXW2(isp, off, v)	\
1041 	bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, off, v)
1042 #define	BXR4(isp, off)		\
1043 	bus_space_read_4(isp->isp_bus_tag, isp->isp_bus_handle, off)
1044 #define	BXW4(isp, off, v)	\
1045 	bus_space_write_4(isp->isp_bus_tag, isp->isp_bus_handle, off, v)
1046 
1047 
1048 static ISP_INLINE int
1049 isp_pci_rd_debounced(ispsoftc_t *isp, int off, uint16_t *rp)
1050 {
1051 	uint32_t val0, val1;
1052 	int i = 0;
1053 
1054 	do {
1055 		val0 = BXR2(isp, IspVirt2Off(isp, off));
1056 		val1 = BXR2(isp, IspVirt2Off(isp, off));
1057 	} while (val0 != val1 && ++i < 1000);
1058 	if (val0 != val1) {
1059 		return (1);
1060 	}
1061 	*rp = val0;
1062 	return (0);
1063 }
1064 
1065 static int
1066 isp_pci_rd_isr(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbp)
1067 {
1068 	uint16_t isr, sema;
1069 
1070 	if (IS_2100(isp)) {
1071 		if (isp_pci_rd_debounced(isp, BIU_ISR, &isr)) {
1072 		    return (0);
1073 		}
1074 		if (isp_pci_rd_debounced(isp, BIU_SEMA, &sema)) {
1075 		    return (0);
1076 		}
1077 	} else {
1078 		isr = BXR2(isp, IspVirt2Off(isp, BIU_ISR));
1079 		sema = BXR2(isp, IspVirt2Off(isp, BIU_SEMA));
1080 	}
1081 	isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
1082 	isr &= INT_PENDING_MASK(isp);
1083 	sema &= BIU_SEMA_LOCK;
1084 	if (isr == 0 && sema == 0) {
1085 		return (0);
1086 	}
1087 	*isrp = isr;
1088 	if ((*semap = sema) != 0) {
1089 		if (IS_2100(isp)) {
1090 			if (isp_pci_rd_debounced(isp, OUTMAILBOX0, mbp)) {
1091 				return (0);
1092 			}
1093 		} else {
1094 			*mbp = BXR2(isp, IspVirt2Off(isp, OUTMAILBOX0));
1095 		}
1096 	}
1097 	return (1);
1098 }
1099 
1100 static int
1101 isp_pci_rd_isr_2300(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbox0p)
1102 {
1103 	uint32_t hccr;
1104 	uint32_t r2hisr;
1105 
1106 	if (!(BXR2(isp, IspVirt2Off(isp, BIU_ISR) & BIU2100_ISR_RISC_INT))) {
1107 		*isrp = 0;
1108 		return (0);
1109 	}
1110 	r2hisr = BXR4(isp, IspVirt2Off(isp, BIU_R2HSTSLO));
1111 	isp_prt(isp, ISP_LOGDEBUG3, "RISC2HOST ISR 0x%x", r2hisr);
1112 	if ((r2hisr & BIU_R2HST_INTR) == 0) {
1113 		*isrp = 0;
1114 		return (0);
1115 	}
1116 	switch (r2hisr & BIU_R2HST_ISTAT_MASK) {
1117 	case ISPR2HST_ROM_MBX_OK:
1118 	case ISPR2HST_ROM_MBX_FAIL:
1119 	case ISPR2HST_MBX_OK:
1120 	case ISPR2HST_MBX_FAIL:
1121 	case ISPR2HST_ASYNC_EVENT:
1122 		*isrp = r2hisr & 0xffff;
1123 		*mbox0p = (r2hisr >> 16);
1124 		*semap = 1;
1125 		return (1);
1126 	case ISPR2HST_RIO_16:
1127 		*isrp = r2hisr & 0xffff;
1128 		*mbox0p = ASYNC_RIO16_1;
1129 		*semap = 1;
1130 		return (1);
1131 	case ISPR2HST_FPOST:
1132 		*isrp = r2hisr & 0xffff;
1133 		*mbox0p = ASYNC_CMD_CMPLT;
1134 		*semap = 1;
1135 		return (1);
1136 	case ISPR2HST_FPOST_CTIO:
1137 		*isrp = r2hisr & 0xffff;
1138 		*mbox0p = ASYNC_CTIO_DONE;
1139 		*semap = 1;
1140 		return (1);
1141 	case ISPR2HST_RSPQ_UPDATE:
1142 		*isrp = r2hisr & 0xffff;
1143 		*mbox0p = 0;
1144 		*semap = 0;
1145 		return (1);
1146 	default:
1147 		hccr = ISP_READ(isp, HCCR);
1148 		if (hccr & HCCR_PAUSE) {
1149 			ISP_WRITE(isp, HCCR, HCCR_RESET);
1150 			isp_prt(isp, ISP_LOGERR, "RISC paused at interrupt (%x->%x)", hccr, ISP_READ(isp, HCCR));
1151 			ISP_WRITE(isp, BIU_ICR, 0);
1152 		} else {
1153 			isp_prt(isp, ISP_LOGERR, "unknown interrupt 0x%x\n", r2hisr);
1154 		}
1155 		return (0);
1156 	}
1157 }
1158 
1159 static int
1160 isp_pci_rd_isr_2400(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbox0p)
1161 {
1162 	uint32_t r2hisr;
1163 
1164 	r2hisr = BXR4(isp, IspVirt2Off(isp, BIU2400_R2HSTSLO));
1165 	isp_prt(isp, ISP_LOGDEBUG3, "RISC2HOST ISR 0x%x", r2hisr);
1166 	if ((r2hisr & BIU2400_R2HST_INTR) == 0) {
1167 		*isrp = 0;
1168 		return (0);
1169 	}
1170 	switch (r2hisr & BIU2400_R2HST_ISTAT_MASK) {
1171 	case ISP2400R2HST_ROM_MBX_OK:
1172 	case ISP2400R2HST_ROM_MBX_FAIL:
1173 	case ISP2400R2HST_MBX_OK:
1174 	case ISP2400R2HST_MBX_FAIL:
1175 	case ISP2400R2HST_ASYNC_EVENT:
1176 		*isrp = r2hisr & 0xffff;
1177 		*mbox0p = (r2hisr >> 16);
1178 		*semap = 1;
1179 		return (1);
1180 	case ISP2400R2HST_RSPQ_UPDATE:
1181 	case ISP2400R2HST_ATIO_RSPQ_UPDATE:
1182 	case ISP2400R2HST_ATIO_RQST_UPDATE:
1183 		*isrp = r2hisr & 0xffff;
1184 		*mbox0p = 0;
1185 		*semap = 0;
1186 		return (1);
1187 	default:
1188 		ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
1189 		isp_prt(isp, ISP_LOGERR, "unknown interrupt 0x%x\n", r2hisr);
1190 		return (0);
1191 	}
1192 }
1193 
1194 static uint32_t
1195 isp_pci_rd_reg(ispsoftc_t *isp, int regoff)
1196 {
1197 	uint16_t rv;
1198 	int oldconf = 0;
1199 
1200 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1201 		/*
1202 		 * We will assume that someone has paused the RISC processor.
1203 		 */
1204 		oldconf = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1205 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf | BIU_PCI_CONF1_SXP);
1206 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1207 	}
1208 	rv = BXR2(isp, IspVirt2Off(isp, regoff));
1209 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1210 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf);
1211 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1212 	}
1213 	return (rv);
1214 }
1215 
1216 static void
1217 isp_pci_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val)
1218 {
1219 	int oldconf = 0;
1220 
1221 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1222 		/*
1223 		 * We will assume that someone has paused the RISC processor.
1224 		 */
1225 		oldconf = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1226 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1227 		    oldconf | BIU_PCI_CONF1_SXP);
1228 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1229 	}
1230 	BXW2(isp, IspVirt2Off(isp, regoff), val);
1231 	MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1232 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1233 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf);
1234 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1235 	}
1236 
1237 }
1238 
1239 static uint32_t
1240 isp_pci_rd_reg_1080(ispsoftc_t *isp, int regoff)
1241 {
1242 	uint32_t rv, oc = 0;
1243 
1244 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1245 		uint32_t tc;
1246 		/*
1247 		 * We will assume that someone has paused the RISC processor.
1248 		 */
1249 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1250 		tc = oc & ~BIU_PCI1080_CONF1_DMA;
1251 		if (regoff & SXP_BANK1_SELECT)
1252 			tc |= BIU_PCI1080_CONF1_SXP1;
1253 		else
1254 			tc |= BIU_PCI1080_CONF1_SXP0;
1255 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), tc);
1256 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1257 	} else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) {
1258 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1259 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1260 		    oc | BIU_PCI1080_CONF1_DMA);
1261 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1262 	}
1263 	rv = BXR2(isp, IspVirt2Off(isp, regoff));
1264 	if (oc) {
1265 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oc);
1266 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1267 	}
1268 	return (rv);
1269 }
1270 
1271 static void
1272 isp_pci_wr_reg_1080(ispsoftc_t *isp, int regoff, uint32_t val)
1273 {
1274 	int oc = 0;
1275 
1276 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1277 		uint32_t tc;
1278 		/*
1279 		 * We will assume that someone has paused the RISC processor.
1280 		 */
1281 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1282 		tc = oc & ~BIU_PCI1080_CONF1_DMA;
1283 		if (regoff & SXP_BANK1_SELECT)
1284 			tc |= BIU_PCI1080_CONF1_SXP1;
1285 		else
1286 			tc |= BIU_PCI1080_CONF1_SXP0;
1287 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), tc);
1288 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1289 	} else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) {
1290 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1291 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1292 		    oc | BIU_PCI1080_CONF1_DMA);
1293 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1294 	}
1295 	BXW2(isp, IspVirt2Off(isp, regoff), val);
1296 	MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1297 	if (oc) {
1298 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oc);
1299 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1300 	}
1301 }
1302 
1303 static uint32_t
1304 isp_pci_rd_reg_2400(ispsoftc_t *isp, int regoff)
1305 {
1306 	uint32_t rv;
1307 	int block = regoff & _BLK_REG_MASK;
1308 
1309 	switch (block) {
1310 	case BIU_BLOCK:
1311 		break;
1312 	case MBOX_BLOCK:
1313 		return (BXR2(isp, IspVirt2Off(isp, regoff)));
1314 	case SXP_BLOCK:
1315 		isp_prt(isp, ISP_LOGWARN, "SXP_BLOCK read at 0x%x", regoff);
1316 		return (0xffffffff);
1317 	case RISC_BLOCK:
1318 		isp_prt(isp, ISP_LOGWARN, "RISC_BLOCK read at 0x%x", regoff);
1319 		return (0xffffffff);
1320 	case DMA_BLOCK:
1321 		isp_prt(isp, ISP_LOGWARN, "DMA_BLOCK read at 0x%x", regoff);
1322 		return (0xffffffff);
1323 	default:
1324 		isp_prt(isp, ISP_LOGWARN, "unknown block read at 0x%x", regoff);
1325 		return (0xffffffff);
1326 	}
1327 
1328 
1329 	switch (regoff) {
1330 	case BIU2400_FLASH_ADDR:
1331 	case BIU2400_FLASH_DATA:
1332 	case BIU2400_ICR:
1333 	case BIU2400_ISR:
1334 	case BIU2400_CSR:
1335 	case BIU2400_REQINP:
1336 	case BIU2400_REQOUTP:
1337 	case BIU2400_RSPINP:
1338 	case BIU2400_RSPOUTP:
1339 	case BIU2400_PRI_REQINP:
1340 	case BIU2400_PRI_REQOUTP:
1341 	case BIU2400_ATIO_RSPINP:
1342 	case BIU2400_ATIO_RSPOUTP:
1343 	case BIU2400_HCCR:
1344 	case BIU2400_GPIOD:
1345 	case BIU2400_GPIOE:
1346 	case BIU2400_HSEMA:
1347 		rv = BXR4(isp, IspVirt2Off(isp, regoff));
1348 		break;
1349 	case BIU2400_R2HSTSLO:
1350 		rv = BXR4(isp, IspVirt2Off(isp, regoff));
1351 		break;
1352 	case BIU2400_R2HSTSHI:
1353 		rv = BXR4(isp, IspVirt2Off(isp, regoff)) >> 16;
1354 		break;
1355 	default:
1356 		isp_prt(isp, ISP_LOGERR,
1357 		    "isp_pci_rd_reg_2400: unknown offset %x", regoff);
1358 		rv = 0xffffffff;
1359 		break;
1360 	}
1361 	return (rv);
1362 }
1363 
1364 static void
1365 isp_pci_wr_reg_2400(ispsoftc_t *isp, int regoff, uint32_t val)
1366 {
1367 	int block = regoff & _BLK_REG_MASK;
1368 
1369 	switch (block) {
1370 	case BIU_BLOCK:
1371 		break;
1372 	case MBOX_BLOCK:
1373 		BXW2(isp, IspVirt2Off(isp, regoff), val);
1374 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1375 		return;
1376 	case SXP_BLOCK:
1377 		isp_prt(isp, ISP_LOGWARN, "SXP_BLOCK write at 0x%x", regoff);
1378 		return;
1379 	case RISC_BLOCK:
1380 		isp_prt(isp, ISP_LOGWARN, "RISC_BLOCK write at 0x%x", regoff);
1381 		return;
1382 	case DMA_BLOCK:
1383 		isp_prt(isp, ISP_LOGWARN, "DMA_BLOCK write at 0x%x", regoff);
1384 		return;
1385 	default:
1386 		isp_prt(isp, ISP_LOGWARN, "unknown block write at 0x%x",
1387 		    regoff);
1388 		break;
1389 	}
1390 
1391 	switch (regoff) {
1392 	case BIU2400_FLASH_ADDR:
1393 	case BIU2400_FLASH_DATA:
1394 	case BIU2400_ICR:
1395 	case BIU2400_ISR:
1396 	case BIU2400_CSR:
1397 	case BIU2400_REQINP:
1398 	case BIU2400_REQOUTP:
1399 	case BIU2400_RSPINP:
1400 	case BIU2400_RSPOUTP:
1401 	case BIU2400_PRI_REQINP:
1402 	case BIU2400_PRI_REQOUTP:
1403 	case BIU2400_ATIO_RSPINP:
1404 	case BIU2400_ATIO_RSPOUTP:
1405 	case BIU2400_HCCR:
1406 	case BIU2400_GPIOD:
1407 	case BIU2400_GPIOE:
1408 	case BIU2400_HSEMA:
1409 		BXW4(isp, IspVirt2Off(isp, regoff), val);
1410 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 4, -1);
1411 		break;
1412 	default:
1413 		isp_prt(isp, ISP_LOGERR,
1414 		    "isp_pci_wr_reg_2400: bad offset 0x%x", regoff);
1415 		break;
1416 	}
1417 }
1418 
1419 
1420 struct imush {
1421 	ispsoftc_t *isp;
1422 	caddr_t vbase;
1423 	int chan;
1424 	int error;
1425 };
1426 
1427 static void imc(void *, bus_dma_segment_t *, int, int);
1428 static void imc1(void *, bus_dma_segment_t *, int, int);
1429 
1430 static void
1431 imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1432 {
1433 	struct imush *imushp = (struct imush *) arg;
1434 
1435 	if (error) {
1436 		imushp->error = error;
1437 		return;
1438 	}
1439 	if (nseg != 1) {
1440 		imushp->error = EINVAL;
1441 		return;
1442 	}
1443 	isp_prt(imushp->isp, ISP_LOGDEBUG0, "request/result area @ 0x%jx/0x%jx", (uintmax_t) segs->ds_addr, (uintmax_t) segs->ds_len);
1444 	imushp->isp->isp_rquest = imushp->vbase;
1445 	imushp->isp->isp_rquest_dma = segs->ds_addr;
1446 	segs->ds_addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(imushp->isp));
1447 	imushp->vbase += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(imushp->isp));
1448 	imushp->isp->isp_result_dma = segs->ds_addr;
1449 	imushp->isp->isp_result = imushp->vbase;
1450 
1451 #ifdef	ISP_TARGET_MODE
1452 	if (IS_24XX(imushp->isp)) {
1453 		segs->ds_addr += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(imushp->isp));
1454 		imushp->vbase += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(imushp->isp));
1455 		imushp->isp->isp_atioq_dma = segs->ds_addr;
1456 		imushp->isp->isp_atioq = imushp->vbase;
1457 	}
1458 #endif
1459 }
1460 
1461 static void
1462 imc1(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1463 {
1464 	struct imush *imushp = (struct imush *) arg;
1465 	if (error) {
1466 		imushp->error = error;
1467 		return;
1468 	}
1469 	if (nseg != 1) {
1470 		imushp->error = EINVAL;
1471 		return;
1472 	}
1473 	isp_prt(imushp->isp, ISP_LOGDEBUG0, "scdma @ 0x%jx/0x%jx", (uintmax_t) segs->ds_addr, (uintmax_t) segs->ds_len);
1474 	FCPARAM(imushp->isp, imushp->chan)->isp_scdma = segs->ds_addr;
1475 	FCPARAM(imushp->isp, imushp->chan)->isp_scratch = imushp->vbase;
1476 }
1477 
1478 static int
1479 isp_pci_mbxdma(ispsoftc_t *isp)
1480 {
1481 	caddr_t base;
1482 	uint32_t len;
1483 	int i, error, ns, cmap = 0;
1484 	bus_size_t slim;	/* segment size */
1485 	bus_addr_t llim;	/* low limit of unavailable dma */
1486 	bus_addr_t hlim;	/* high limit of unavailable dma */
1487 	struct imush im;
1488 
1489 	/*
1490 	 * Already been here? If so, leave...
1491 	 */
1492 	if (isp->isp_rquest) {
1493 		return (0);
1494 	}
1495 	ISP_UNLOCK(isp);
1496 
1497 	if (isp->isp_maxcmds == 0) {
1498 		isp_prt(isp, ISP_LOGERR, "maxcmds not set");
1499 		ISP_LOCK(isp);
1500 		return (1);
1501 	}
1502 
1503 	hlim = BUS_SPACE_MAXADDR;
1504 	if (IS_ULTRA2(isp) || IS_FC(isp) || IS_1240(isp)) {
1505 		if (sizeof (bus_size_t) > 4) {
1506 			slim = (bus_size_t) (1ULL << 32);
1507 		} else {
1508 			slim = (bus_size_t) (1UL << 31);
1509 		}
1510 		llim = BUS_SPACE_MAXADDR;
1511 	} else {
1512 		llim = BUS_SPACE_MAXADDR_32BIT;
1513 		slim = (1UL << 24);
1514 	}
1515 
1516 	len = isp->isp_maxcmds * sizeof (struct isp_pcmd);
1517 	isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *) kmalloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1518 	if (isp->isp_osinfo.pcmd_pool == NULL) {
1519 		isp_prt(isp, ISP_LOGERR, "cannot allocate pcmds");
1520 		ISP_LOCK(isp);
1521 		return (1);
1522 	}
1523 
1524 	/*
1525 	 * XXX: We don't really support 64 bit target mode for parallel scsi yet
1526 	 */
1527 #ifdef	ISP_TARGET_MODE
1528 	if (IS_SCSI(isp) && sizeof (bus_addr_t) > 4) {
1529 		kfree(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1530 		isp_prt(isp, ISP_LOGERR, "we cannot do DAC for SPI cards yet");
1531 		ISP_LOCK(isp);
1532 		return (1);
1533 	}
1534 #endif
1535 
1536 	if (isp_dma_tag_create(NULL, 1, slim, llim, hlim, NULL, NULL, BUS_SPACE_MAXSIZE, ISP_NSEGS, slim, 0, &isp->isp_osinfo.dmat)) {
1537 		kfree(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1538 		ISP_LOCK(isp);
1539 		isp_prt(isp, ISP_LOGERR, "could not create master dma tag");
1540 		return (1);
1541 	}
1542 
1543 	len = sizeof (isp_hdl_t) * isp->isp_maxcmds;
1544 	isp->isp_xflist = (isp_hdl_t *) kmalloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1545 	if (isp->isp_xflist == NULL) {
1546 		kfree(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1547 		ISP_LOCK(isp);
1548 		isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array");
1549 		return (1);
1550 	}
1551 	for (len = 0; len < isp->isp_maxcmds - 1; len++) {
1552 		isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1];
1553 	}
1554 	isp->isp_xffree = isp->isp_xflist;
1555 #ifdef	ISP_TARGET_MODE
1556 	len = sizeof (isp_hdl_t) * isp->isp_maxcmds;
1557 	isp->isp_tgtlist = (isp_hdl_t *) kmalloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1558 	if (isp->isp_tgtlist == NULL) {
1559 		kfree(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1560 		kfree(isp->isp_xflist, M_DEVBUF);
1561 		ISP_LOCK(isp);
1562 		isp_prt(isp, ISP_LOGERR, "cannot alloc tgtlist array");
1563 		return (1);
1564 	}
1565 	for (len = 0; len < isp->isp_maxcmds - 1; len++) {
1566 		isp->isp_tgtlist[len].cmd = &isp->isp_tgtlist[len+1];
1567 	}
1568 	isp->isp_tgtfree = isp->isp_tgtlist;
1569 #endif
1570 
1571 	/*
1572 	 * Allocate and map the request and result queues (and ATIO queue
1573 	 * if we're a 2400 supporting target mode).
1574 	 */
1575 	len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
1576 	len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
1577 #ifdef	ISP_TARGET_MODE
1578 	if (IS_24XX(isp)) {
1579 		len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
1580 	}
1581 #endif
1582 
1583 	ns = (len / PAGE_SIZE) + 1;
1584 
1585 	/*
1586 	 * Create a tag for the control spaces. We don't always need this
1587 	 * to be 32 bits, but we do this for simplicity and speed's sake.
1588 	 */
1589 	if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, slim, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, len, ns, slim, 0, &isp->isp_osinfo.cdmat)) {
1590 		isp_prt(isp, ISP_LOGERR, "cannot create a dma tag for control spaces");
1591 		kfree(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1592 		kfree(isp->isp_xflist, M_DEVBUF);
1593 #ifdef	ISP_TARGET_MODE
1594 		kfree(isp->isp_tgtlist, M_DEVBUF);
1595 #endif
1596 		ISP_LOCK(isp);
1597 		return (1);
1598 	}
1599 
1600 	if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &isp->isp_osinfo.cdmap) != 0) {
1601 		isp_prt(isp, ISP_LOGERR, "cannot allocate %d bytes of CCB memory", len);
1602 		bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
1603 		kfree(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1604 		kfree(isp->isp_xflist, M_DEVBUF);
1605 #ifdef	ISP_TARGET_MODE
1606 		kfree(isp->isp_tgtlist, M_DEVBUF);
1607 #endif
1608 		ISP_LOCK(isp);
1609 		return (1);
1610 	}
1611 
1612 	im.isp = isp;
1613 	im.chan = 0;
1614 	im.vbase = base;
1615 	im.error = 0;
1616 
1617 	bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0);
1618 	if (im.error) {
1619 		isp_prt(isp, ISP_LOGERR, "error %d loading dma map for control areas", im.error);
1620 		goto bad;
1621 	}
1622 
1623 	if (IS_FC(isp)) {
1624 		for (cmap = 0; cmap < isp->isp_nchan; cmap++) {
1625 			struct isp_fc *fc = ISP_FC_PC(isp, cmap);
1626 			if (isp_dma_tag_create(isp->isp_osinfo.dmat, 64, slim, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, ISP_FC_SCRLEN, 1, slim, 0, &fc->tdmat)) {
1627 				goto bad;
1628 			}
1629 			if (bus_dmamem_alloc(fc->tdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &fc->tdmap) != 0) {
1630 				bus_dma_tag_destroy(fc->tdmat);
1631 				goto bad;
1632 			}
1633 			im.isp = isp;
1634 			im.chan = cmap;
1635 			im.vbase = base;
1636 			im.error = 0;
1637 			bus_dmamap_load(fc->tdmat, fc->tdmap, base, ISP_FC_SCRLEN, imc1, &im, 0);
1638 			if (im.error) {
1639 				bus_dmamem_free(fc->tdmat, base, fc->tdmap);
1640 				bus_dma_tag_destroy(fc->tdmat);
1641 				goto bad;
1642 			}
1643 		}
1644 	}
1645 
1646 	for (i = 0; i < isp->isp_maxcmds; i++) {
1647 		struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i];
1648 		error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap);
1649 		if (error) {
1650 			isp_prt(isp, ISP_LOGERR, "error %d creating per-cmd DMA maps", error);
1651 			while (--i >= 0) {
1652 				bus_dmamap_destroy(isp->isp_osinfo.dmat, isp->isp_osinfo.pcmd_pool[i].dmap);
1653 			}
1654 			goto bad;
1655 		}
1656 		callout_init(&pcmd->wdog);
1657 		if (i == isp->isp_maxcmds-1) {
1658 			pcmd->next = NULL;
1659 		} else {
1660 			pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1];
1661 		}
1662 	}
1663 	isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0];
1664 	ISP_LOCK(isp);
1665 	return (0);
1666 
1667 bad:
1668 	while (--cmap >= 0) {
1669 		struct isp_fc *fc = ISP_FC_PC(isp, cmap);
1670 		bus_dmamem_free(fc->tdmat, base, fc->tdmap);
1671 		bus_dma_tag_destroy(fc->tdmat);
1672 	}
1673 	bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap);
1674 	bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
1675 	kfree(isp->isp_xflist, M_DEVBUF);
1676 #ifdef	ISP_TARGET_MODE
1677 	kfree(isp->isp_tgtlist, M_DEVBUF);
1678 #endif
1679 	kfree(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1680 	isp->isp_rquest = NULL;
1681 	ISP_LOCK(isp);
1682 	return (1);
1683 }
1684 
1685 typedef struct {
1686 	ispsoftc_t *isp;
1687 	void *cmd_token;
1688 	void *rq;	/* original request */
1689 	int error;
1690 	bus_size_t mapsize;
1691 } mush_t;
1692 
1693 #define	MUSHERR_NOQENTRIES	-2
1694 
1695 #ifdef	ISP_TARGET_MODE
1696 static void tdma2_2(void *, bus_dma_segment_t *, int, bus_size_t, int);
1697 static void tdma2(void *, bus_dma_segment_t *, int, int);
1698 
1699 static void
1700 tdma2_2(void *arg, bus_dma_segment_t *dm_segs, int nseg, bus_size_t mapsize, int error)
1701 {
1702 	mush_t *mp;
1703 	mp = (mush_t *)arg;
1704 	mp->mapsize = mapsize;
1705 	tdma2(arg, dm_segs, nseg, error);
1706 }
1707 
1708 static void
1709 tdma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1710 {
1711 	mush_t *mp;
1712 	ispsoftc_t *isp;
1713 	struct ccb_scsiio *csio;
1714 	isp_ddir_t ddir;
1715 	ispreq_t *rq;
1716 
1717 	mp = (mush_t *) arg;
1718 	if (error) {
1719 		mp->error = error;
1720 		return;
1721 	}
1722 	csio = mp->cmd_token;
1723 	isp = mp->isp;
1724 	rq = mp->rq;
1725 	if (nseg) {
1726 		if (sizeof (bus_addr_t) > 4) {
1727 			if (nseg >= ISP_NSEG64_MAX) {
1728 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG64_MAX);
1729 				mp->error = EFAULT;
1730 				return;
1731 			}
1732 			if (rq->req_header.rqs_entry_type == RQSTYPE_CTIO2) {
1733 				rq->req_header.rqs_entry_type = RQSTYPE_CTIO3;
1734 			}
1735 		} else {
1736 			if (nseg >= ISP_NSEG_MAX) {
1737 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG_MAX);
1738 				mp->error = EFAULT;
1739 				return;
1740 			}
1741 		}
1742 		if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1743 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE);
1744 			ddir = ISP_TO_DEVICE;
1745 		} else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1746 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD);
1747 			ddir = ISP_FROM_DEVICE;
1748 		} else {
1749 			dm_segs = NULL;
1750 			nseg = 0;
1751 			ddir = ISP_NOXFR;
1752 		}
1753 	} else {
1754 		dm_segs = NULL;
1755 		nseg = 0;
1756 		ddir = ISP_NOXFR;
1757 	}
1758 
1759 	if (isp_send_tgt_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, &csio->sense_data, csio->sense_len) != CMD_QUEUED) {
1760 		mp->error = MUSHERR_NOQENTRIES;
1761 	}
1762 }
1763 #endif
1764 
1765 static void dma2_2(void *, bus_dma_segment_t *, int, bus_size_t, int);
1766 static void dma2(void *, bus_dma_segment_t *, int, int);
1767 
1768 static void
1769 dma2_2(void *arg, bus_dma_segment_t *dm_segs, int nseg, bus_size_t mapsize, int error)
1770 {
1771 	mush_t *mp;
1772 	mp = (mush_t *)arg;
1773 	mp->mapsize = mapsize;
1774 	dma2(arg, dm_segs, nseg, error);
1775 }
1776 
1777 static void
1778 dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1779 {
1780 	mush_t *mp;
1781 	ispsoftc_t *isp;
1782 	struct ccb_scsiio *csio;
1783 	isp_ddir_t ddir;
1784 	ispreq_t *rq;
1785 
1786 	mp = (mush_t *) arg;
1787 	if (error) {
1788 		mp->error = error;
1789 		return;
1790 	}
1791 	csio = mp->cmd_token;
1792 	isp = mp->isp;
1793 	rq = mp->rq;
1794 	if (nseg) {
1795 		if (sizeof (bus_addr_t) > 4) {
1796 			if (nseg >= ISP_NSEG64_MAX) {
1797 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG64_MAX);
1798 				mp->error = EFAULT;
1799 				return;
1800 			}
1801 			if (rq->req_header.rqs_entry_type == RQSTYPE_T2RQS) {
1802 				rq->req_header.rqs_entry_type = RQSTYPE_T3RQS;
1803 			} else if (rq->req_header.rqs_entry_type == RQSTYPE_REQUEST) {
1804 				rq->req_header.rqs_entry_type = RQSTYPE_A64;
1805 			}
1806 		} else {
1807 			if (nseg >= ISP_NSEG_MAX) {
1808 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG_MAX);
1809 				mp->error = EFAULT;
1810 				return;
1811 			}
1812 		}
1813 		if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1814 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD);
1815 			ddir = ISP_FROM_DEVICE;
1816 		} else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1817 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE);
1818 			ddir = ISP_TO_DEVICE;
1819 		} else {
1820 			ddir = ISP_NOXFR;
1821 		}
1822 	} else {
1823 		dm_segs = NULL;
1824 		nseg = 0;
1825 		ddir = ISP_NOXFR;
1826 	}
1827 
1828 	if (isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir) != CMD_QUEUED) {
1829 		mp->error = MUSHERR_NOQENTRIES;
1830 	}
1831 }
1832 
1833 static int
1834 isp_pci_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff)
1835 {
1836 	mush_t mush, *mp;
1837 	void (*eptr)(void *, bus_dma_segment_t *, int, int);
1838 	void (*eptr2)(void *, bus_dma_segment_t *, int, bus_size_t, int);
1839 
1840 	mp = &mush;
1841 	mp->isp = isp;
1842 	mp->cmd_token = csio;
1843 	mp->rq = ff;
1844 	mp->error = 0;
1845 	mp->mapsize = 0;
1846 
1847 #ifdef	ISP_TARGET_MODE
1848 	if (csio->ccb_h.func_code == XPT_CONT_TARGET_IO) {
1849 		eptr = tdma2;
1850 		eptr2 = tdma2_2;
1851 	} else
1852 #endif
1853 	{
1854 		eptr = dma2;
1855 		eptr2 = dma2_2;
1856 	}
1857 
1858 
1859 	if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_NONE || (csio->dxfer_len == 0)) {
1860 		(*eptr)(mp, NULL, 0, 0);
1861 	} else if ((csio->ccb_h.flags & CAM_SCATTER_VALID) == 0) {
1862 		if ((csio->ccb_h.flags & CAM_DATA_PHYS) == 0) {
1863 			int error;
1864 			error = bus_dmamap_load(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, csio->data_ptr, csio->dxfer_len, eptr, mp, 0);
1865 #if 0
1866 			xpt_print(csio->ccb_h.path, "%s: bus_dmamap_load " "ptr %p len %d returned %d\n", __func__, csio->data_ptr, csio->dxfer_len, error);
1867 #endif
1868 
1869 			if (error == EINPROGRESS) {
1870 				bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
1871 				mp->error = EINVAL;
1872 				isp_prt(isp, ISP_LOGERR, "deferred dma allocation not supported");
1873 			} else if (error && mp->error == 0) {
1874 #ifdef	DIAGNOSTIC
1875 				isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error);
1876 #endif
1877 				mp->error = error;
1878 			}
1879 		} else {
1880 			/* Pointer to physical buffer */
1881 			struct bus_dma_segment seg;
1882 			seg.ds_addr = (bus_addr_t)(vm_offset_t)csio->data_ptr;
1883 			seg.ds_len = csio->dxfer_len;
1884 			(*eptr)(mp, &seg, 1, 0);
1885 		}
1886 	} else {
1887 		struct bus_dma_segment *segs;
1888 
1889 		if ((csio->ccb_h.flags & CAM_DATA_PHYS) != 0) {
1890 			isp_prt(isp, ISP_LOGERR, "Physical segment pointers unsupported");
1891 			mp->error = EINVAL;
1892 		} else if ((csio->ccb_h.flags & CAM_SG_LIST_PHYS) == 0) {
1893 			struct uio sguio;
1894 			int error;
1895 
1896 			/*
1897 			 * We're taking advantage of the fact that
1898 			 * the pointer/length sizes and layout of the iovec
1899 			 * structure are the same as the bus_dma_segment
1900 			 * structure.  This might be a little dangerous,
1901 			 * but only if they change the structures, which
1902 			 * seems unlikely.
1903 			 */
1904 			KASSERT((sizeof (sguio.uio_iov) == sizeof (csio->data_ptr) &&
1905 			    sizeof (sguio.uio_iovcnt) >= sizeof (csio->sglist_cnt) &&
1906 			    sizeof (sguio.uio_resid) >= sizeof (csio->dxfer_len)), ("Ken's assumption failed"));
1907 			sguio.uio_iov = (struct iovec *)csio->data_ptr;
1908 			sguio.uio_iovcnt = csio->sglist_cnt;
1909 			sguio.uio_resid = csio->dxfer_len;
1910 			sguio.uio_segflg = UIO_SYSSPACE;
1911 
1912 			error = bus_dmamap_load_uio(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, &sguio, eptr2, mp, 0);
1913 
1914 			if (error != 0 && mp->error == 0) {
1915 				isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error);
1916 				mp->error = error;
1917 			}
1918 		} else {
1919 			/* Just use the segments provided */
1920 			segs = (struct bus_dma_segment *) csio->data_ptr;
1921 			(*eptr)(mp, segs, csio->sglist_cnt, 0);
1922 		}
1923 	}
1924 	if (mp->error) {
1925 		int retval = CMD_COMPLETE;
1926 		if (mp->error == MUSHERR_NOQENTRIES) {
1927 			retval = CMD_EAGAIN;
1928 		} else if (mp->error == EFBIG) {
1929 			XS_SETERR(csio, CAM_REQ_TOO_BIG);
1930 		} else if (mp->error == EINVAL) {
1931 			XS_SETERR(csio, CAM_REQ_INVALID);
1932 		} else {
1933 			XS_SETERR(csio, CAM_UNREC_HBA_ERROR);
1934 		}
1935 		return (retval);
1936 	}
1937 	return (CMD_QUEUED);
1938 }
1939 
1940 static void
1941 isp_pci_reset0(ispsoftc_t *isp)
1942 {
1943 	ISP_DISABLE_INTS(isp);
1944 }
1945 
1946 static void
1947 isp_pci_reset1(ispsoftc_t *isp)
1948 {
1949 	if (!IS_24XX(isp)) {
1950 		/* Make sure the BIOS is disabled */
1951 		isp_pci_wr_reg(isp, HCCR, PCI_HCCR_CMD_BIOS);
1952 	}
1953 	/* and enable interrupts */
1954 	ISP_ENABLE_INTS(isp);
1955 }
1956 
1957 static void
1958 isp_pci_dumpregs(ispsoftc_t *isp, const char *msg)
1959 {
1960 	struct isp_pcisoftc *pcs = (struct isp_pcisoftc *)isp;
1961 	if (msg)
1962 		kprintf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg);
1963 	else
1964 		kprintf("%s:\n", device_get_nameunit(isp->isp_dev));
1965 	if (IS_SCSI(isp))
1966 		kprintf("    biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
1967 	else
1968 		kprintf("    biu_csr=%x", ISP_READ(isp, BIU2100_CSR));
1969 	kprintf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
1970 	    ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
1971 	kprintf("risc_hccr=%x\n", ISP_READ(isp, HCCR));
1972 
1973 
1974 	if (IS_SCSI(isp)) {
1975 		ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
1976 		kprintf("    cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
1977 			ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
1978 			ISP_READ(isp, CDMA_FIFO_STS));
1979 		kprintf("    ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
1980 			ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
1981 			ISP_READ(isp, DDMA_FIFO_STS));
1982 		kprintf("    sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
1983 			ISP_READ(isp, SXP_INTERRUPT),
1984 			ISP_READ(isp, SXP_GROSS_ERR),
1985 			ISP_READ(isp, SXP_PINS_CTRL));
1986 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
1987 	}
1988 	kprintf("    mbox regs: %x %x %x %x %x\n",
1989 	    ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
1990 	    ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
1991 	    ISP_READ(isp, OUTMAILBOX4));
1992 	kprintf("    PCI Status Command/Status=%x\n",
1993 	    pci_read_config(pcs->pci_dev, PCIR_COMMAND, 1));
1994 }
1995