xref: /freebsd/sys/dev/isp/isp_pci.c (revision 3e6deb330e6613bcd7b3ec227add1eb2a2dcaaf8)
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 /*
27  * PCI specific probe and attach routines for Qlogic ISP SCSI adapters.
28  * FreeBSD Version.
29  */
30 #include <sys/cdefs.h>
31 __FBSDID("$FreeBSD$");
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 <dev/pci/pcireg.h>
42 #include <dev/pci/pcivar.h>
43 #include <machine/bus.h>
44 #include <machine/resource.h>
45 #include <sys/rman.h>
46 #include <sys/malloc.h>
47 #include <sys/uio.h>
48 
49 #ifdef __sparc64__
50 #include <dev/ofw/openfirm.h>
51 #include <machine/ofw_machdep.h>
52 #endif
53 
54 #include <dev/isp/isp_freebsd.h>
55 
56 static uint32_t isp_pci_rd_reg(ispsoftc_t *, int);
57 static void isp_pci_wr_reg(ispsoftc_t *, int, uint32_t);
58 static uint32_t isp_pci_rd_reg_1080(ispsoftc_t *, int);
59 static void isp_pci_wr_reg_1080(ispsoftc_t *, int, uint32_t);
60 static uint32_t isp_pci_rd_reg_2400(ispsoftc_t *, int);
61 static void isp_pci_wr_reg_2400(ispsoftc_t *, int, uint32_t);
62 static int isp_pci_rd_isr(ispsoftc_t *, uint16_t *, uint16_t *, uint16_t *);
63 static int isp_pci_rd_isr_2300(ispsoftc_t *, uint16_t *, uint16_t *, uint16_t *);
64 static int isp_pci_rd_isr_2400(ispsoftc_t *, uint16_t *, uint16_t *, uint16_t *);
65 static int isp_pci_mbxdma(ispsoftc_t *);
66 static int isp_pci_dmasetup(ispsoftc_t *, XS_T *, void *);
67 
68 
69 static void isp_pci_reset0(ispsoftc_t *);
70 static void isp_pci_reset1(ispsoftc_t *);
71 static void isp_pci_dumpregs(ispsoftc_t *, const char *);
72 
73 static struct ispmdvec mdvec = {
74 	isp_pci_rd_isr,
75 	isp_pci_rd_reg,
76 	isp_pci_wr_reg,
77 	isp_pci_mbxdma,
78 	isp_pci_dmasetup,
79 	isp_common_dmateardown,
80 	isp_pci_reset0,
81 	isp_pci_reset1,
82 	isp_pci_dumpregs,
83 	NULL,
84 	BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
85 };
86 
87 static struct ispmdvec mdvec_1080 = {
88 	isp_pci_rd_isr,
89 	isp_pci_rd_reg_1080,
90 	isp_pci_wr_reg_1080,
91 	isp_pci_mbxdma,
92 	isp_pci_dmasetup,
93 	isp_common_dmateardown,
94 	isp_pci_reset0,
95 	isp_pci_reset1,
96 	isp_pci_dumpregs,
97 	NULL,
98 	BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
99 };
100 
101 static struct ispmdvec mdvec_12160 = {
102 	isp_pci_rd_isr,
103 	isp_pci_rd_reg_1080,
104 	isp_pci_wr_reg_1080,
105 	isp_pci_mbxdma,
106 	isp_pci_dmasetup,
107 	isp_common_dmateardown,
108 	isp_pci_reset0,
109 	isp_pci_reset1,
110 	isp_pci_dumpregs,
111 	NULL,
112 	BIU_BURST_ENABLE|BIU_PCI_CONF1_FIFO_64
113 };
114 
115 static struct ispmdvec mdvec_2100 = {
116 	isp_pci_rd_isr,
117 	isp_pci_rd_reg,
118 	isp_pci_wr_reg,
119 	isp_pci_mbxdma,
120 	isp_pci_dmasetup,
121 	isp_common_dmateardown,
122 	isp_pci_reset0,
123 	isp_pci_reset1,
124 	isp_pci_dumpregs
125 };
126 
127 static struct ispmdvec mdvec_2200 = {
128 	isp_pci_rd_isr,
129 	isp_pci_rd_reg,
130 	isp_pci_wr_reg,
131 	isp_pci_mbxdma,
132 	isp_pci_dmasetup,
133 	isp_common_dmateardown,
134 	isp_pci_reset0,
135 	isp_pci_reset1,
136 	isp_pci_dumpregs
137 };
138 
139 static struct ispmdvec mdvec_2300 = {
140 	isp_pci_rd_isr_2300,
141 	isp_pci_rd_reg,
142 	isp_pci_wr_reg,
143 	isp_pci_mbxdma,
144 	isp_pci_dmasetup,
145 	isp_common_dmateardown,
146 	isp_pci_reset0,
147 	isp_pci_reset1,
148 	isp_pci_dumpregs
149 };
150 
151 static struct ispmdvec mdvec_2400 = {
152 	isp_pci_rd_isr_2400,
153 	isp_pci_rd_reg_2400,
154 	isp_pci_wr_reg_2400,
155 	isp_pci_mbxdma,
156 	isp_pci_dmasetup,
157 	isp_common_dmateardown,
158 	isp_pci_reset0,
159 	isp_pci_reset1,
160 	NULL
161 };
162 
163 static struct ispmdvec mdvec_2500 = {
164 	isp_pci_rd_isr_2400,
165 	isp_pci_rd_reg_2400,
166 	isp_pci_wr_reg_2400,
167 	isp_pci_mbxdma,
168 	isp_pci_dmasetup,
169 	isp_common_dmateardown,
170 	isp_pci_reset0,
171 	isp_pci_reset1,
172 	NULL
173 };
174 
175 #ifndef	PCIM_CMD_INVEN
176 #define	PCIM_CMD_INVEN			0x10
177 #endif
178 #ifndef	PCIM_CMD_BUSMASTEREN
179 #define	PCIM_CMD_BUSMASTEREN		0x0004
180 #endif
181 #ifndef	PCIM_CMD_PERRESPEN
182 #define	PCIM_CMD_PERRESPEN		0x0040
183 #endif
184 #ifndef	PCIM_CMD_SEREN
185 #define	PCIM_CMD_SEREN			0x0100
186 #endif
187 #ifndef	PCIM_CMD_INTX_DISABLE
188 #define	PCIM_CMD_INTX_DISABLE		0x0400
189 #endif
190 
191 #ifndef	PCIR_COMMAND
192 #define	PCIR_COMMAND			0x04
193 #endif
194 
195 #ifndef	PCIR_CACHELNSZ
196 #define	PCIR_CACHELNSZ			0x0c
197 #endif
198 
199 #ifndef	PCIR_LATTIMER
200 #define	PCIR_LATTIMER			0x0d
201 #endif
202 
203 #ifndef	PCIR_ROMADDR
204 #define	PCIR_ROMADDR			0x30
205 #endif
206 
207 #ifndef	PCI_VENDOR_QLOGIC
208 #define	PCI_VENDOR_QLOGIC		0x1077
209 #endif
210 
211 #ifndef	PCI_PRODUCT_QLOGIC_ISP1020
212 #define	PCI_PRODUCT_QLOGIC_ISP1020	0x1020
213 #endif
214 
215 #ifndef	PCI_PRODUCT_QLOGIC_ISP1080
216 #define	PCI_PRODUCT_QLOGIC_ISP1080	0x1080
217 #endif
218 
219 #ifndef	PCI_PRODUCT_QLOGIC_ISP10160
220 #define	PCI_PRODUCT_QLOGIC_ISP10160	0x1016
221 #endif
222 
223 #ifndef	PCI_PRODUCT_QLOGIC_ISP12160
224 #define	PCI_PRODUCT_QLOGIC_ISP12160	0x1216
225 #endif
226 
227 #ifndef	PCI_PRODUCT_QLOGIC_ISP1240
228 #define	PCI_PRODUCT_QLOGIC_ISP1240	0x1240
229 #endif
230 
231 #ifndef	PCI_PRODUCT_QLOGIC_ISP1280
232 #define	PCI_PRODUCT_QLOGIC_ISP1280	0x1280
233 #endif
234 
235 #ifndef	PCI_PRODUCT_QLOGIC_ISP2100
236 #define	PCI_PRODUCT_QLOGIC_ISP2100	0x2100
237 #endif
238 
239 #ifndef	PCI_PRODUCT_QLOGIC_ISP2200
240 #define	PCI_PRODUCT_QLOGIC_ISP2200	0x2200
241 #endif
242 
243 #ifndef	PCI_PRODUCT_QLOGIC_ISP2300
244 #define	PCI_PRODUCT_QLOGIC_ISP2300	0x2300
245 #endif
246 
247 #ifndef	PCI_PRODUCT_QLOGIC_ISP2312
248 #define	PCI_PRODUCT_QLOGIC_ISP2312	0x2312
249 #endif
250 
251 #ifndef	PCI_PRODUCT_QLOGIC_ISP2322
252 #define	PCI_PRODUCT_QLOGIC_ISP2322	0x2322
253 #endif
254 
255 #ifndef	PCI_PRODUCT_QLOGIC_ISP2422
256 #define	PCI_PRODUCT_QLOGIC_ISP2422	0x2422
257 #endif
258 
259 #ifndef	PCI_PRODUCT_QLOGIC_ISP2432
260 #define	PCI_PRODUCT_QLOGIC_ISP2432	0x2432
261 #endif
262 
263 #ifndef	PCI_PRODUCT_QLOGIC_ISP2532
264 #define	PCI_PRODUCT_QLOGIC_ISP2532	0x2532
265 #endif
266 
267 #ifndef	PCI_PRODUCT_QLOGIC_ISP6312
268 #define	PCI_PRODUCT_QLOGIC_ISP6312	0x6312
269 #endif
270 
271 #ifndef	PCI_PRODUCT_QLOGIC_ISP6322
272 #define	PCI_PRODUCT_QLOGIC_ISP6322	0x6322
273 #endif
274 
275 #ifndef        PCI_PRODUCT_QLOGIC_ISP5432
276 #define        PCI_PRODUCT_QLOGIC_ISP5432      0x5432
277 #endif
278 
279 #define        PCI_QLOGIC_ISP5432      \
280        ((PCI_PRODUCT_QLOGIC_ISP5432 << 16) | PCI_VENDOR_QLOGIC)
281 
282 #define	PCI_QLOGIC_ISP1020	\
283 	((PCI_PRODUCT_QLOGIC_ISP1020 << 16) | PCI_VENDOR_QLOGIC)
284 
285 #define	PCI_QLOGIC_ISP1080	\
286 	((PCI_PRODUCT_QLOGIC_ISP1080 << 16) | PCI_VENDOR_QLOGIC)
287 
288 #define	PCI_QLOGIC_ISP10160	\
289 	((PCI_PRODUCT_QLOGIC_ISP10160 << 16) | PCI_VENDOR_QLOGIC)
290 
291 #define	PCI_QLOGIC_ISP12160	\
292 	((PCI_PRODUCT_QLOGIC_ISP12160 << 16) | PCI_VENDOR_QLOGIC)
293 
294 #define	PCI_QLOGIC_ISP1240	\
295 	((PCI_PRODUCT_QLOGIC_ISP1240 << 16) | PCI_VENDOR_QLOGIC)
296 
297 #define	PCI_QLOGIC_ISP1280	\
298 	((PCI_PRODUCT_QLOGIC_ISP1280 << 16) | PCI_VENDOR_QLOGIC)
299 
300 #define	PCI_QLOGIC_ISP2100	\
301 	((PCI_PRODUCT_QLOGIC_ISP2100 << 16) | PCI_VENDOR_QLOGIC)
302 
303 #define	PCI_QLOGIC_ISP2200	\
304 	((PCI_PRODUCT_QLOGIC_ISP2200 << 16) | PCI_VENDOR_QLOGIC)
305 
306 #define	PCI_QLOGIC_ISP2300	\
307 	((PCI_PRODUCT_QLOGIC_ISP2300 << 16) | PCI_VENDOR_QLOGIC)
308 
309 #define	PCI_QLOGIC_ISP2312	\
310 	((PCI_PRODUCT_QLOGIC_ISP2312 << 16) | PCI_VENDOR_QLOGIC)
311 
312 #define	PCI_QLOGIC_ISP2322	\
313 	((PCI_PRODUCT_QLOGIC_ISP2322 << 16) | PCI_VENDOR_QLOGIC)
314 
315 #define	PCI_QLOGIC_ISP2422	\
316 	((PCI_PRODUCT_QLOGIC_ISP2422 << 16) | PCI_VENDOR_QLOGIC)
317 
318 #define	PCI_QLOGIC_ISP2432	\
319 	((PCI_PRODUCT_QLOGIC_ISP2432 << 16) | PCI_VENDOR_QLOGIC)
320 
321 #define	PCI_QLOGIC_ISP2532	\
322 	((PCI_PRODUCT_QLOGIC_ISP2532 << 16) | PCI_VENDOR_QLOGIC)
323 
324 #define	PCI_QLOGIC_ISP6312	\
325 	((PCI_PRODUCT_QLOGIC_ISP6312 << 16) | PCI_VENDOR_QLOGIC)
326 
327 #define	PCI_QLOGIC_ISP6322	\
328 	((PCI_PRODUCT_QLOGIC_ISP6322 << 16) | PCI_VENDOR_QLOGIC)
329 
330 /*
331  * Odd case for some AMI raid cards... We need to *not* attach to this.
332  */
333 #define	AMI_RAID_SUBVENDOR_ID	0x101e
334 
335 #define	IO_MAP_REG	0x10
336 #define	MEM_MAP_REG	0x14
337 
338 #define	PCI_DFLT_LTNCY	0x40
339 #define	PCI_DFLT_LNSZ	0x10
340 
341 static int isp_pci_probe (device_t);
342 static int isp_pci_attach (device_t);
343 static int isp_pci_detach (device_t);
344 
345 
346 #define	ISP_PCD(isp)	((struct isp_pcisoftc *)isp)->pci_dev
347 struct isp_pcisoftc {
348 	ispsoftc_t			pci_isp;
349 	device_t			pci_dev;
350 	struct resource *		regs;
351 	void *				irq;
352 	int				iqd;
353 	int				rtp;
354 	int				rgd;
355 	void *				ih;
356 	int16_t				pci_poff[_NREG_BLKS];
357 	bus_dma_tag_t			dmat;
358 	int				msicount;
359 };
360 
361 
362 static device_method_t isp_pci_methods[] = {
363 	/* Device interface */
364 	DEVMETHOD(device_probe,		isp_pci_probe),
365 	DEVMETHOD(device_attach,	isp_pci_attach),
366 	DEVMETHOD(device_detach,	isp_pci_detach),
367 	{ 0, 0 }
368 };
369 
370 static driver_t isp_pci_driver = {
371 	"isp", isp_pci_methods, sizeof (struct isp_pcisoftc)
372 };
373 static devclass_t isp_devclass;
374 DRIVER_MODULE(isp, pci, isp_pci_driver, isp_devclass, 0, 0);
375 MODULE_DEPEND(isp, cam, 1, 1, 1);
376 MODULE_DEPEND(isp, firmware, 1, 1, 1);
377 static int isp_nvports = 0;
378 
379 static int
380 isp_pci_probe(device_t dev)
381 {
382 	switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
383 	case PCI_QLOGIC_ISP1020:
384 		device_set_desc(dev, "Qlogic ISP 1020/1040 PCI SCSI Adapter");
385 		break;
386 	case PCI_QLOGIC_ISP1080:
387 		device_set_desc(dev, "Qlogic ISP 1080 PCI SCSI Adapter");
388 		break;
389 	case PCI_QLOGIC_ISP1240:
390 		device_set_desc(dev, "Qlogic ISP 1240 PCI SCSI Adapter");
391 		break;
392 	case PCI_QLOGIC_ISP1280:
393 		device_set_desc(dev, "Qlogic ISP 1280 PCI SCSI Adapter");
394 		break;
395 	case PCI_QLOGIC_ISP10160:
396 		device_set_desc(dev, "Qlogic ISP 10160 PCI SCSI Adapter");
397 		break;
398 	case PCI_QLOGIC_ISP12160:
399 		if (pci_get_subvendor(dev) == AMI_RAID_SUBVENDOR_ID) {
400 			return (ENXIO);
401 		}
402 		device_set_desc(dev, "Qlogic ISP 12160 PCI SCSI Adapter");
403 		break;
404 	case PCI_QLOGIC_ISP2100:
405 		device_set_desc(dev, "Qlogic ISP 2100 PCI FC-AL Adapter");
406 		break;
407 	case PCI_QLOGIC_ISP2200:
408 		device_set_desc(dev, "Qlogic ISP 2200 PCI FC-AL Adapter");
409 		break;
410 	case PCI_QLOGIC_ISP2300:
411 		device_set_desc(dev, "Qlogic ISP 2300 PCI FC-AL Adapter");
412 		break;
413 	case PCI_QLOGIC_ISP2312:
414 		device_set_desc(dev, "Qlogic ISP 2312 PCI FC-AL Adapter");
415 		break;
416 	case PCI_QLOGIC_ISP2322:
417 		device_set_desc(dev, "Qlogic ISP 2322 PCI FC-AL Adapter");
418 		break;
419 	case PCI_QLOGIC_ISP2422:
420 		device_set_desc(dev, "Qlogic ISP 2422 PCI FC-AL Adapter");
421 		break;
422 	case PCI_QLOGIC_ISP2432:
423 		device_set_desc(dev, "Qlogic ISP 2432 PCI FC-AL Adapter");
424 		break;
425 	case PCI_QLOGIC_ISP2532:
426 		device_set_desc(dev, "Qlogic ISP 2532 PCI FC-AL Adapter");
427 		break;
428 	case PCI_QLOGIC_ISP5432:
429 		device_set_desc(dev, "Qlogic ISP 5432 PCI FC-AL Adapter");
430 		break;
431 	case PCI_QLOGIC_ISP6312:
432 		device_set_desc(dev, "Qlogic ISP 6312 PCI FC-AL Adapter");
433 		break;
434 	case PCI_QLOGIC_ISP6322:
435 		device_set_desc(dev, "Qlogic ISP 6322 PCI FC-AL Adapter");
436 		break;
437 	default:
438 		return (ENXIO);
439 	}
440 	if (isp_announced == 0 && bootverbose) {
441 		printf("Qlogic ISP Driver, FreeBSD Version %d.%d, "
442 		    "Core Version %d.%d\n",
443 		    ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
444 		    ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
445 		isp_announced++;
446 	}
447 	/*
448 	 * XXXX: Here is where we might load the f/w module
449 	 * XXXX: (or increase a reference count to it).
450 	 */
451 	return (BUS_PROBE_DEFAULT);
452 }
453 
454 static void
455 isp_get_generic_options(device_t dev, ispsoftc_t *isp)
456 {
457 	int tval;
458 
459 	/*
460 	 * Figure out if we're supposed to skip this one.
461 	 */
462 	tval = 0;
463 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "disable", &tval) == 0 && tval) {
464 		device_printf(dev, "disabled at user request\n");
465 		isp->isp_osinfo.disabled = 1;
466 		return;
467 	}
468 
469 	tval = 0;
470 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "fwload_disable", &tval) == 0 && tval != 0) {
471 		isp->isp_confopts |= ISP_CFG_NORELOAD;
472 	}
473 	tval = 0;
474 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "ignore_nvram", &tval) == 0 && tval != 0) {
475 		isp->isp_confopts |= ISP_CFG_NONVRAM;
476 	}
477 	tval = 0;
478 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "debug", &tval);
479 	if (tval) {
480 		isp->isp_dblev = tval;
481 	} else {
482 		isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
483 	}
484 	if (bootverbose) {
485 		isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO;
486 	}
487 	tval = -1;
488 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "vports", &tval);
489 	if (tval > 0 && tval <= 254) {
490 		isp_nvports = tval;
491 	}
492 	tval = 7;
493 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "quickboot_time", &tval);
494 	isp_quickboot_time = tval;
495 }
496 
497 static void
498 isp_get_pci_options(device_t dev, int *m1, int *m2)
499 {
500 	int tval;
501 	/*
502 	 * Which we should try first - memory mapping or i/o mapping?
503 	 *
504 	 * We used to try memory first followed by i/o on alpha, otherwise
505 	 * the reverse, but we should just try memory first all the time now.
506 	 */
507 	*m1 = PCIM_CMD_MEMEN;
508 	*m2 = PCIM_CMD_PORTEN;
509 
510 	tval = 0;
511 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "prefer_iomap", &tval) == 0 && tval != 0) {
512 		*m1 = PCIM_CMD_PORTEN;
513 		*m2 = PCIM_CMD_MEMEN;
514 	}
515 	tval = 0;
516 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "prefer_memmap", &tval) == 0 && tval != 0) {
517 		*m1 = PCIM_CMD_MEMEN;
518 		*m2 = PCIM_CMD_PORTEN;
519 	}
520 }
521 
522 static void
523 isp_get_specific_options(device_t dev, int chan, ispsoftc_t *isp)
524 {
525 	const char *sptr;
526 	int tval = 0;
527 	char prefix[12], name[16];
528 
529 	if (chan == 0)
530 		prefix[0] = 0;
531 	else
532 		snprintf(prefix, sizeof(prefix), "chan%d.", chan);
533 	snprintf(name, sizeof(name), "%siid", prefix);
534 	if (resource_int_value(device_get_name(dev), device_get_unit(dev),
535 	    name, &tval)) {
536 		if (IS_FC(isp)) {
537 			ISP_FC_PC(isp, chan)->default_id = 109 - chan;
538 		} else {
539 #ifdef __sparc64__
540 			ISP_SPI_PC(isp, chan)->iid = OF_getscsinitid(dev);
541 #else
542 			ISP_SPI_PC(isp, chan)->iid = 7;
543 #endif
544 		}
545 	} else {
546 		if (IS_FC(isp)) {
547 			ISP_FC_PC(isp, chan)->default_id = tval - chan;
548 		} else {
549 			ISP_SPI_PC(isp, chan)->iid = tval;
550 		}
551 		isp->isp_confopts |= ISP_CFG_OWNLOOPID;
552 	}
553 
554 	if (IS_SCSI(isp))
555 		return;
556 
557 	tval = -1;
558 	snprintf(name, sizeof(name), "%srole", prefix);
559 	if (resource_int_value(device_get_name(dev), device_get_unit(dev),
560 	    name, &tval) == 0) {
561 		switch (tval) {
562 		case ISP_ROLE_NONE:
563 		case ISP_ROLE_INITIATOR:
564 		case ISP_ROLE_TARGET:
565 		case ISP_ROLE_BOTH:
566 			device_printf(dev, "Chan %d setting role to 0x%x\n", chan, tval);
567 			break;
568 		default:
569 			tval = -1;
570 			break;
571 		}
572 	}
573 	if (tval == -1) {
574 		tval = ISP_DEFAULT_ROLES;
575 	}
576 	ISP_FC_PC(isp, chan)->def_role = tval;
577 
578 	tval = 0;
579 	snprintf(name, sizeof(name), "%sfullduplex", prefix);
580 	if (resource_int_value(device_get_name(dev), device_get_unit(dev),
581 	    name, &tval) == 0 && tval != 0) {
582 		isp->isp_confopts |= ISP_CFG_FULL_DUPLEX;
583 	}
584 	sptr = 0;
585 	snprintf(name, sizeof(name), "%stopology", prefix);
586 	if (resource_string_value(device_get_name(dev), device_get_unit(dev),
587 	    name, (const char **) &sptr) == 0 && sptr != 0) {
588 		if (strcmp(sptr, "lport") == 0) {
589 			isp->isp_confopts |= ISP_CFG_LPORT;
590 		} else if (strcmp(sptr, "nport") == 0) {
591 			isp->isp_confopts |= ISP_CFG_NPORT;
592 		} else if (strcmp(sptr, "lport-only") == 0) {
593 			isp->isp_confopts |= ISP_CFG_LPORT_ONLY;
594 		} else if (strcmp(sptr, "nport-only") == 0) {
595 			isp->isp_confopts |= ISP_CFG_NPORT_ONLY;
596 		}
597 	}
598 
599 	tval = 0;
600 	snprintf(name, sizeof(name), "%snofctape", prefix);
601 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
602 	    name, &tval);
603 	if (tval) {
604 		isp->isp_confopts |= ISP_CFG_NOFCTAPE;
605 	}
606 
607 	tval = 0;
608 	snprintf(name, sizeof(name), "%sfctape", prefix);
609 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
610 	    name, &tval);
611 	if (tval) {
612 		isp->isp_confopts &= ~ISP_CFG_NOFCTAPE;
613 		isp->isp_confopts |= ISP_CFG_FCTAPE;
614 	}
615 
616 
617 	/*
618 	 * Because the resource_*_value functions can neither return
619 	 * 64 bit integer values, nor can they be directly coerced
620 	 * to interpret the right hand side of the assignment as
621 	 * you want them to interpret it, we have to force WWN
622 	 * hint replacement to specify WWN strings with a leading
623 	 * 'w' (e..g w50000000aaaa0001). Sigh.
624 	 */
625 	sptr = 0;
626 	snprintf(name, sizeof(name), "%sportwwn", prefix);
627 	tval = resource_string_value(device_get_name(dev), device_get_unit(dev),
628 	    name, (const char **) &sptr);
629 	if (tval == 0 && sptr != 0 && *sptr++ == 'w') {
630 		char *eptr = 0;
631 		ISP_FC_PC(isp, chan)->def_wwpn = strtouq(sptr, &eptr, 16);
632 		if (eptr < sptr + 16 || ISP_FC_PC(isp, chan)->def_wwpn == -1) {
633 			device_printf(dev, "mangled portwwn hint '%s'\n", sptr);
634 			ISP_FC_PC(isp, chan)->def_wwpn = 0;
635 		}
636 	}
637 
638 	sptr = 0;
639 	snprintf(name, sizeof(name), "%snodewwn", prefix);
640 	tval = resource_string_value(device_get_name(dev), device_get_unit(dev),
641 	    name, (const char **) &sptr);
642 	if (tval == 0 && sptr != 0 && *sptr++ == 'w') {
643 		char *eptr = 0;
644 		ISP_FC_PC(isp, chan)->def_wwnn = strtouq(sptr, &eptr, 16);
645 		if (eptr < sptr + 16 || ISP_FC_PC(isp, chan)->def_wwnn == 0) {
646 			device_printf(dev, "mangled nodewwn hint '%s'\n", sptr);
647 			ISP_FC_PC(isp, chan)->def_wwnn = 0;
648 		}
649 	}
650 
651 	tval = 0;
652 	snprintf(name, sizeof(name), "%shysteresis", prefix);
653 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
654 	    "name", &tval);
655 	if (tval >= 0 && tval < 256) {
656 		ISP_FC_PC(isp, chan)->hysteresis = tval;
657 	} else {
658 		ISP_FC_PC(isp, chan)->hysteresis = isp_fabric_hysteresis;
659 	}
660 
661 	tval = -1;
662 	snprintf(name, sizeof(name), "%sloop_down_limit", prefix);
663 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
664 	    name, &tval);
665 	if (tval >= 0 && tval < 0xffff) {
666 		ISP_FC_PC(isp, chan)->loop_down_limit = tval;
667 	} else {
668 		ISP_FC_PC(isp, chan)->loop_down_limit = isp_loop_down_limit;
669 	}
670 
671 	tval = -1;
672 	snprintf(name, sizeof(name), "%sgone_device_time", prefix);
673 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
674 	    name, &tval);
675 	if (tval >= 0 && tval < 0xffff) {
676 		ISP_FC_PC(isp, chan)->gone_device_time = tval;
677 	} else {
678 		ISP_FC_PC(isp, chan)->gone_device_time = isp_gone_device_time;
679 	}
680 }
681 
682 static int
683 isp_pci_attach(device_t dev)
684 {
685 	int i, m1, m2, locksetup = 0;
686 	uint32_t data, cmd, linesz, did;
687 	struct isp_pcisoftc *pcs;
688 	ispsoftc_t *isp;
689 	size_t psize, xsize;
690 	char fwname[32];
691 
692 	pcs = device_get_softc(dev);
693 	if (pcs == NULL) {
694 		device_printf(dev, "cannot get softc\n");
695 		return (ENOMEM);
696 	}
697 	memset(pcs, 0, sizeof (*pcs));
698 
699 	pcs->pci_dev = dev;
700 	isp = &pcs->pci_isp;
701 	isp->isp_dev = dev;
702 	isp->isp_nchan = 1;
703 	if (sizeof (bus_addr_t) > 4)
704 		isp->isp_osinfo.sixtyfourbit = 1;
705 
706 	/*
707 	 * Get Generic Options
708 	 */
709 	isp_nvports = 0;
710 	isp_get_generic_options(dev, isp);
711 
712 	/*
713 	 * Check to see if options have us disabled
714 	 */
715 	if (isp->isp_osinfo.disabled) {
716 		/*
717 		 * But return zero to preserve unit numbering
718 		 */
719 		return (0);
720 	}
721 
722 	/*
723 	 * Get PCI options- which in this case are just mapping preferences.
724 	 */
725 	isp_get_pci_options(dev, &m1, &m2);
726 
727 	linesz = PCI_DFLT_LNSZ;
728 	pcs->irq = pcs->regs = NULL;
729 	pcs->rgd = pcs->rtp = pcs->iqd = 0;
730 
731 	pcs->rtp = (m1 == PCIM_CMD_MEMEN)? SYS_RES_MEMORY : SYS_RES_IOPORT;
732 	pcs->rgd = (m1 == PCIM_CMD_MEMEN)? MEM_MAP_REG : IO_MAP_REG;
733 	pcs->regs = bus_alloc_resource_any(dev, pcs->rtp, &pcs->rgd, RF_ACTIVE);
734 	if (pcs->regs == NULL) {
735 		pcs->rtp = (m2 == PCIM_CMD_MEMEN)? SYS_RES_MEMORY : SYS_RES_IOPORT;
736 		pcs->rgd = (m2 == PCIM_CMD_MEMEN)? MEM_MAP_REG : IO_MAP_REG;
737 		pcs->regs = bus_alloc_resource_any(dev, pcs->rtp, &pcs->rgd, RF_ACTIVE);
738 	}
739 	if (pcs->regs == NULL) {
740 		device_printf(dev, "unable to map any ports\n");
741 		goto bad;
742 	}
743 	if (bootverbose) {
744 		device_printf(dev, "using %s space register mapping\n", (pcs->rgd == IO_MAP_REG)? "I/O" : "Memory");
745 	}
746 	isp->isp_bus_tag = rman_get_bustag(pcs->regs);
747 	isp->isp_bus_handle = rman_get_bushandle(pcs->regs);
748 
749 	pcs->pci_dev = dev;
750 	pcs->pci_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
751 	pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS_OFF;
752 	pcs->pci_poff[SXP_BLOCK >> _BLK_REG_SHFT] = PCI_SXP_REGS_OFF;
753 	pcs->pci_poff[RISC_BLOCK >> _BLK_REG_SHFT] = PCI_RISC_REGS_OFF;
754 	pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
755 
756 	switch (pci_get_devid(dev)) {
757 	case PCI_QLOGIC_ISP1020:
758 		did = 0x1040;
759 		isp->isp_mdvec = &mdvec;
760 		isp->isp_type = ISP_HA_SCSI_UNKNOWN;
761 		break;
762 	case PCI_QLOGIC_ISP1080:
763 		did = 0x1080;
764 		isp->isp_mdvec = &mdvec_1080;
765 		isp->isp_type = ISP_HA_SCSI_1080;
766 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
767 		break;
768 	case PCI_QLOGIC_ISP1240:
769 		did = 0x1080;
770 		isp->isp_mdvec = &mdvec_1080;
771 		isp->isp_type = ISP_HA_SCSI_1240;
772 		isp->isp_nchan = 2;
773 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
774 		break;
775 	case PCI_QLOGIC_ISP1280:
776 		did = 0x1080;
777 		isp->isp_mdvec = &mdvec_1080;
778 		isp->isp_type = ISP_HA_SCSI_1280;
779 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
780 		break;
781 	case PCI_QLOGIC_ISP10160:
782 		did = 0x12160;
783 		isp->isp_mdvec = &mdvec_12160;
784 		isp->isp_type = ISP_HA_SCSI_10160;
785 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
786 		break;
787 	case PCI_QLOGIC_ISP12160:
788 		did = 0x12160;
789 		isp->isp_nchan = 2;
790 		isp->isp_mdvec = &mdvec_12160;
791 		isp->isp_type = ISP_HA_SCSI_12160;
792 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
793 		break;
794 	case PCI_QLOGIC_ISP2100:
795 		did = 0x2100;
796 		isp->isp_mdvec = &mdvec_2100;
797 		isp->isp_type = ISP_HA_FC_2100;
798 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2100_OFF;
799 		if (pci_get_revid(dev) < 3) {
800 			/*
801 			 * XXX: Need to get the actual revision
802 			 * XXX: number of the 2100 FB. At any rate,
803 			 * XXX: lower cache line size for early revision
804 			 * XXX; boards.
805 			 */
806 			linesz = 1;
807 		}
808 		break;
809 	case PCI_QLOGIC_ISP2200:
810 		did = 0x2200;
811 		isp->isp_mdvec = &mdvec_2200;
812 		isp->isp_type = ISP_HA_FC_2200;
813 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2100_OFF;
814 		break;
815 	case PCI_QLOGIC_ISP2300:
816 		did = 0x2300;
817 		isp->isp_mdvec = &mdvec_2300;
818 		isp->isp_type = ISP_HA_FC_2300;
819 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
820 		break;
821 	case PCI_QLOGIC_ISP2312:
822 	case PCI_QLOGIC_ISP6312:
823 		did = 0x2300;
824 		isp->isp_mdvec = &mdvec_2300;
825 		isp->isp_type = ISP_HA_FC_2312;
826 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
827 		break;
828 	case PCI_QLOGIC_ISP2322:
829 	case PCI_QLOGIC_ISP6322:
830 		did = 0x2322;
831 		isp->isp_mdvec = &mdvec_2300;
832 		isp->isp_type = ISP_HA_FC_2322;
833 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
834 		break;
835 	case PCI_QLOGIC_ISP2422:
836 	case PCI_QLOGIC_ISP2432:
837 		did = 0x2400;
838 		isp->isp_nchan += isp_nvports;
839 		isp->isp_mdvec = &mdvec_2400;
840 		isp->isp_type = ISP_HA_FC_2400;
841 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
842 		break;
843 	case PCI_QLOGIC_ISP2532:
844 		did = 0x2500;
845 		isp->isp_nchan += isp_nvports;
846 		isp->isp_mdvec = &mdvec_2500;
847 		isp->isp_type = ISP_HA_FC_2500;
848 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
849 		break;
850 	case PCI_QLOGIC_ISP5432:
851 		did = 0x2500;
852 		isp->isp_mdvec = &mdvec_2500;
853 		isp->isp_type = ISP_HA_FC_2500;
854 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
855 		break;
856 	default:
857 		device_printf(dev, "unknown device type\n");
858 		goto bad;
859 		break;
860 	}
861 	isp->isp_revision = pci_get_revid(dev);
862 
863 	if (IS_FC(isp)) {
864 		psize = sizeof (fcparam);
865 		xsize = sizeof (struct isp_fc);
866 	} else {
867 		psize = sizeof (sdparam);
868 		xsize = sizeof (struct isp_spi);
869 	}
870 	psize *= isp->isp_nchan;
871 	xsize *= isp->isp_nchan;
872 	isp->isp_param = malloc(psize, M_DEVBUF, M_NOWAIT | M_ZERO);
873 	if (isp->isp_param == NULL) {
874 		device_printf(dev, "cannot allocate parameter data\n");
875 		goto bad;
876 	}
877 	isp->isp_osinfo.pc.ptr = malloc(xsize, M_DEVBUF, M_NOWAIT | M_ZERO);
878 	if (isp->isp_osinfo.pc.ptr == NULL) {
879 		device_printf(dev, "cannot allocate parameter data\n");
880 		goto bad;
881 	}
882 
883 	/*
884 	 * Now that we know who we are (roughly) get/set specific options
885 	 */
886 	for (i = 0; i < isp->isp_nchan; i++) {
887 		isp_get_specific_options(dev, i, isp);
888 	}
889 
890 	isp->isp_osinfo.fw = NULL;
891 	if (isp->isp_osinfo.fw == NULL) {
892 		snprintf(fwname, sizeof (fwname), "isp_%04x", did);
893 		isp->isp_osinfo.fw = firmware_get(fwname);
894 	}
895 	if (isp->isp_osinfo.fw != NULL) {
896 		isp_prt(isp, ISP_LOGCONFIG, "loaded firmware %s", fwname);
897 		isp->isp_mdvec->dv_ispfw = isp->isp_osinfo.fw->data;
898 	}
899 
900 	/*
901 	 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
902 	 */
903 	cmd = pci_read_config(dev, PCIR_COMMAND, 2);
904 	cmd |= PCIM_CMD_SEREN | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_INVEN;
905 	if (IS_2300(isp)) {	/* per QLogic errata */
906 		cmd &= ~PCIM_CMD_INVEN;
907 	}
908 	if (IS_2322(isp) || pci_get_devid(dev) == PCI_QLOGIC_ISP6312) {
909 		cmd &= ~PCIM_CMD_INTX_DISABLE;
910 	}
911 	if (IS_24XX(isp)) {
912 		cmd &= ~PCIM_CMD_INTX_DISABLE;
913 	}
914 	pci_write_config(dev, PCIR_COMMAND, cmd, 2);
915 
916 	/*
917 	 * Make sure the Cache Line Size register is set sensibly.
918 	 */
919 	data = pci_read_config(dev, PCIR_CACHELNSZ, 1);
920 	if (data == 0 || (linesz != PCI_DFLT_LNSZ && data != linesz)) {
921 		isp_prt(isp, ISP_LOGDEBUG0, "set PCI line size to %d from %d", linesz, data);
922 		data = linesz;
923 		pci_write_config(dev, PCIR_CACHELNSZ, data, 1);
924 	}
925 
926 	/*
927 	 * Make sure the Latency Timer is sane.
928 	 */
929 	data = pci_read_config(dev, PCIR_LATTIMER, 1);
930 	if (data < PCI_DFLT_LTNCY) {
931 		data = PCI_DFLT_LTNCY;
932 		isp_prt(isp, ISP_LOGDEBUG0, "set PCI latency to %d", data);
933 		pci_write_config(dev, PCIR_LATTIMER, data, 1);
934 	}
935 
936 	/*
937 	 * Make sure we've disabled the ROM.
938 	 */
939 	data = pci_read_config(dev, PCIR_ROMADDR, 4);
940 	data &= ~1;
941 	pci_write_config(dev, PCIR_ROMADDR, data, 4);
942 
943 	/*
944 	 * Do MSI
945 	 *
946 	 * NB: MSI-X needs to be disabled for the 2432 (PCI-Express)
947 	 */
948 	if (IS_24XX(isp) || IS_2322(isp)) {
949 		pcs->msicount = pci_msi_count(dev);
950 		if (pcs->msicount > 1) {
951 			pcs->msicount = 1;
952 		}
953 		if (pci_alloc_msi(dev, &pcs->msicount) == 0) {
954 			pcs->iqd = 1;
955 		} else {
956 			pcs->iqd = 0;
957 		}
958 	}
959 	pcs->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &pcs->iqd, RF_ACTIVE | RF_SHAREABLE);
960 	if (pcs->irq == NULL) {
961 		device_printf(dev, "could not allocate interrupt\n");
962 		goto bad;
963 	}
964 
965 	/* Make sure the lock is set up. */
966 	mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF);
967 	locksetup++;
968 
969 	if (isp_setup_intr(dev, pcs->irq, ISP_IFLAGS, NULL, isp_platform_intr, isp, &pcs->ih)) {
970 		device_printf(dev, "could not setup interrupt\n");
971 		goto bad;
972 	}
973 
974 	/*
975 	 * Last minute checks...
976 	 */
977 	if (IS_23XX(isp) || IS_24XX(isp)) {
978 		isp->isp_port = pci_get_function(dev);
979 	}
980 
981 	/*
982 	 * Make sure we're in reset state.
983 	 */
984 	ISP_LOCK(isp);
985 	if (isp_reinit(isp, 1) != 0) {
986 		ISP_UNLOCK(isp);
987 		goto bad;
988 	}
989 	ISP_UNLOCK(isp);
990 	if (isp_attach(isp)) {
991 		ISP_LOCK(isp);
992 		isp_uninit(isp);
993 		ISP_UNLOCK(isp);
994 		goto bad;
995 	}
996 	return (0);
997 
998 bad:
999 	if (pcs->ih) {
1000 		(void) bus_teardown_intr(dev, pcs->irq, pcs->ih);
1001 	}
1002 	if (locksetup) {
1003 		mtx_destroy(&isp->isp_osinfo.lock);
1004 	}
1005 	if (pcs->irq) {
1006 		(void) bus_release_resource(dev, SYS_RES_IRQ, pcs->iqd, pcs->irq);
1007 	}
1008 	if (pcs->msicount) {
1009 		pci_release_msi(dev);
1010 	}
1011 	if (pcs->regs) {
1012 		(void) bus_release_resource(dev, pcs->rtp, pcs->rgd, pcs->regs);
1013 	}
1014 	if (pcs->pci_isp.isp_param) {
1015 		free(pcs->pci_isp.isp_param, M_DEVBUF);
1016 		pcs->pci_isp.isp_param = NULL;
1017 	}
1018 	if (pcs->pci_isp.isp_osinfo.pc.ptr) {
1019 		free(pcs->pci_isp.isp_osinfo.pc.ptr, M_DEVBUF);
1020 		pcs->pci_isp.isp_osinfo.pc.ptr = NULL;
1021 	}
1022 	return (ENXIO);
1023 }
1024 
1025 static int
1026 isp_pci_detach(device_t dev)
1027 {
1028 	struct isp_pcisoftc *pcs;
1029 	ispsoftc_t *isp;
1030 	int status;
1031 
1032 	pcs = device_get_softc(dev);
1033 	if (pcs == NULL) {
1034 		return (ENXIO);
1035 	}
1036 	isp = (ispsoftc_t *) pcs;
1037 	status = isp_detach(isp);
1038 	if (status)
1039 		return (status);
1040 	ISP_LOCK(isp);
1041 	isp_uninit(isp);
1042 	if (pcs->ih) {
1043 		(void) bus_teardown_intr(dev, pcs->irq, pcs->ih);
1044 	}
1045 	ISP_UNLOCK(isp);
1046 	mtx_destroy(&isp->isp_osinfo.lock);
1047 	(void) bus_release_resource(dev, SYS_RES_IRQ, pcs->iqd, pcs->irq);
1048 	if (pcs->msicount) {
1049 		pci_release_msi(dev);
1050 	}
1051 	(void) bus_release_resource(dev, pcs->rtp, pcs->rgd, pcs->regs);
1052 	/*
1053 	 * XXX: THERE IS A LOT OF LEAKAGE HERE
1054 	 */
1055 	if (pcs->pci_isp.isp_param) {
1056 		free(pcs->pci_isp.isp_param, M_DEVBUF);
1057 		pcs->pci_isp.isp_param = NULL;
1058 	}
1059 	if (pcs->pci_isp.isp_osinfo.pc.ptr) {
1060 		free(pcs->pci_isp.isp_osinfo.pc.ptr, M_DEVBUF);
1061 		pcs->pci_isp.isp_osinfo.pc.ptr = NULL;
1062 	}
1063 	return (0);
1064 }
1065 
1066 #define	IspVirt2Off(a, x)	\
1067 	(((struct isp_pcisoftc *)a)->pci_poff[((x) & _BLK_REG_MASK) >> \
1068 	_BLK_REG_SHFT] + ((x) & 0xfff))
1069 
1070 #define	BXR2(isp, off)		\
1071 	bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off)
1072 #define	BXW2(isp, off, v)	\
1073 	bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, off, v)
1074 #define	BXR4(isp, off)		\
1075 	bus_space_read_4(isp->isp_bus_tag, isp->isp_bus_handle, off)
1076 #define	BXW4(isp, off, v)	\
1077 	bus_space_write_4(isp->isp_bus_tag, isp->isp_bus_handle, off, v)
1078 
1079 
1080 static ISP_INLINE int
1081 isp_pci_rd_debounced(ispsoftc_t *isp, int off, uint16_t *rp)
1082 {
1083 	uint32_t val0, val1;
1084 	int i = 0;
1085 
1086 	do {
1087 		val0 = BXR2(isp, IspVirt2Off(isp, off));
1088 		val1 = BXR2(isp, IspVirt2Off(isp, off));
1089 	} while (val0 != val1 && ++i < 1000);
1090 	if (val0 != val1) {
1091 		return (1);
1092 	}
1093 	*rp = val0;
1094 	return (0);
1095 }
1096 
1097 static int
1098 isp_pci_rd_isr(ispsoftc_t *isp, uint16_t *isrp, uint16_t *semap, uint16_t *info)
1099 {
1100 	uint16_t isr, sema;
1101 
1102 	if (IS_2100(isp)) {
1103 		if (isp_pci_rd_debounced(isp, BIU_ISR, &isr)) {
1104 		    return (0);
1105 		}
1106 		if (isp_pci_rd_debounced(isp, BIU_SEMA, &sema)) {
1107 		    return (0);
1108 		}
1109 	} else {
1110 		isr = BXR2(isp, IspVirt2Off(isp, BIU_ISR));
1111 		sema = BXR2(isp, IspVirt2Off(isp, BIU_SEMA));
1112 	}
1113 	isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
1114 	isr &= INT_PENDING_MASK(isp);
1115 	sema &= BIU_SEMA_LOCK;
1116 	if (isr == 0 && sema == 0) {
1117 		return (0);
1118 	}
1119 	*isrp = isr;
1120 	if ((*semap = sema) != 0) {
1121 		if (IS_2100(isp)) {
1122 			if (isp_pci_rd_debounced(isp, OUTMAILBOX0, info)) {
1123 				return (0);
1124 			}
1125 		} else {
1126 			*info = BXR2(isp, IspVirt2Off(isp, OUTMAILBOX0));
1127 		}
1128 	}
1129 	return (1);
1130 }
1131 
1132 static int
1133 isp_pci_rd_isr_2300(ispsoftc_t *isp, uint16_t *isrp, uint16_t *semap, uint16_t *info)
1134 {
1135 	uint32_t hccr, r2hisr;
1136 
1137 	if (!(BXR2(isp, IspVirt2Off(isp, BIU_ISR) & BIU2100_ISR_RISC_INT))) {
1138 		*isrp = 0;
1139 		return (0);
1140 	}
1141 	r2hisr = BXR4(isp, IspVirt2Off(isp, BIU_R2HSTSLO));
1142 	isp_prt(isp, ISP_LOGDEBUG3, "RISC2HOST ISR 0x%x", r2hisr);
1143 	if ((r2hisr & BIU_R2HST_INTR) == 0) {
1144 		*isrp = 0;
1145 		return (0);
1146 	}
1147 	switch ((*isrp = r2hisr & BIU_R2HST_ISTAT_MASK)) {
1148 	case ISPR2HST_ROM_MBX_OK:
1149 	case ISPR2HST_ROM_MBX_FAIL:
1150 	case ISPR2HST_MBX_OK:
1151 	case ISPR2HST_MBX_FAIL:
1152 	case ISPR2HST_ASYNC_EVENT:
1153 		*semap = 1;
1154 		break;
1155 	case ISPR2HST_RIO_16:
1156 		*info = ASYNC_RIO16_1;
1157 		*semap = 1;
1158 		return (1);
1159 	case ISPR2HST_FPOST:
1160 		*info = ASYNC_CMD_CMPLT;
1161 		*semap = 1;
1162 		return (1);
1163 	case ISPR2HST_FPOST_CTIO:
1164 		*info = ASYNC_CTIO_DONE;
1165 		*semap = 1;
1166 		return (1);
1167 	case ISPR2HST_RSPQ_UPDATE:
1168 		*semap = 0;
1169 		break;
1170 	default:
1171 		hccr = ISP_READ(isp, HCCR);
1172 		if (hccr & HCCR_PAUSE) {
1173 			ISP_WRITE(isp, HCCR, HCCR_RESET);
1174 			isp_prt(isp, ISP_LOGERR, "RISC paused at interrupt (%x->%x)", hccr, ISP_READ(isp, HCCR));
1175 			ISP_WRITE(isp, BIU_ICR, 0);
1176 		} else {
1177 			isp_prt(isp, ISP_LOGERR, "unknown interrupt 0x%x\n", r2hisr);
1178 		}
1179 		return (0);
1180 	}
1181 	*info = (r2hisr >> 16);
1182 	return (1);
1183 }
1184 
1185 static int
1186 isp_pci_rd_isr_2400(ispsoftc_t *isp, uint16_t *isrp, uint16_t *semap, uint16_t *info)
1187 {
1188 	uint32_t r2hisr;
1189 
1190 	r2hisr = BXR4(isp, IspVirt2Off(isp, BIU2400_R2HSTSLO));
1191 	isp_prt(isp, ISP_LOGDEBUG3, "RISC2HOST ISR 0x%x", r2hisr);
1192 	if ((r2hisr & BIU_R2HST_INTR) == 0) {
1193 		*isrp = 0;
1194 		return (0);
1195 	}
1196 	switch ((*isrp = r2hisr & BIU_R2HST_ISTAT_MASK)) {
1197 	case ISPR2HST_ROM_MBX_OK:
1198 	case ISPR2HST_ROM_MBX_FAIL:
1199 	case ISPR2HST_MBX_OK:
1200 	case ISPR2HST_MBX_FAIL:
1201 	case ISPR2HST_ASYNC_EVENT:
1202 		*semap = 1;
1203 		break;
1204 	case ISPR2HST_RSPQ_UPDATE:
1205 	case ISPR2HST_RSPQ_UPDATE2:
1206 	case ISPR2HST_ATIO_UPDATE:
1207 	case ISPR2HST_ATIO_RSPQ_UPDATE:
1208 	case ISPR2HST_ATIO_UPDATE2:
1209 		*semap = 0;
1210 		break;
1211 	default:
1212 		ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
1213 		isp_prt(isp, ISP_LOGERR, "unknown interrupt 0x%x\n", r2hisr);
1214 		return (0);
1215 	}
1216 	*info = (r2hisr >> 16);
1217 	return (1);
1218 }
1219 
1220 static uint32_t
1221 isp_pci_rd_reg(ispsoftc_t *isp, int regoff)
1222 {
1223 	uint16_t rv;
1224 	int oldconf = 0;
1225 
1226 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1227 		/*
1228 		 * We will assume that someone has paused the RISC processor.
1229 		 */
1230 		oldconf = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1231 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf | BIU_PCI_CONF1_SXP);
1232 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1233 	}
1234 	rv = BXR2(isp, IspVirt2Off(isp, regoff));
1235 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1236 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf);
1237 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1238 	}
1239 	return (rv);
1240 }
1241 
1242 static void
1243 isp_pci_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val)
1244 {
1245 	int oldconf = 0;
1246 
1247 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1248 		/*
1249 		 * We will assume that someone has paused the RISC processor.
1250 		 */
1251 		oldconf = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1252 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1253 		    oldconf | BIU_PCI_CONF1_SXP);
1254 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1255 	}
1256 	BXW2(isp, IspVirt2Off(isp, regoff), val);
1257 	MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1258 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1259 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf);
1260 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1261 	}
1262 
1263 }
1264 
1265 static uint32_t
1266 isp_pci_rd_reg_1080(ispsoftc_t *isp, int regoff)
1267 {
1268 	uint32_t rv, oc = 0;
1269 
1270 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1271 		uint32_t tc;
1272 		/*
1273 		 * We will assume that someone has paused the RISC processor.
1274 		 */
1275 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1276 		tc = oc & ~BIU_PCI1080_CONF1_DMA;
1277 		if (regoff & SXP_BANK1_SELECT)
1278 			tc |= BIU_PCI1080_CONF1_SXP1;
1279 		else
1280 			tc |= BIU_PCI1080_CONF1_SXP0;
1281 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), tc);
1282 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1283 	} else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) {
1284 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1285 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1286 		    oc | BIU_PCI1080_CONF1_DMA);
1287 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1288 	}
1289 	rv = BXR2(isp, IspVirt2Off(isp, regoff));
1290 	if (oc) {
1291 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oc);
1292 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1293 	}
1294 	return (rv);
1295 }
1296 
1297 static void
1298 isp_pci_wr_reg_1080(ispsoftc_t *isp, int regoff, uint32_t val)
1299 {
1300 	int oc = 0;
1301 
1302 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1303 		uint32_t tc;
1304 		/*
1305 		 * We will assume that someone has paused the RISC processor.
1306 		 */
1307 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1308 		tc = oc & ~BIU_PCI1080_CONF1_DMA;
1309 		if (regoff & SXP_BANK1_SELECT)
1310 			tc |= BIU_PCI1080_CONF1_SXP1;
1311 		else
1312 			tc |= BIU_PCI1080_CONF1_SXP0;
1313 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), tc);
1314 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1315 	} else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) {
1316 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1317 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1318 		    oc | BIU_PCI1080_CONF1_DMA);
1319 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1320 	}
1321 	BXW2(isp, IspVirt2Off(isp, regoff), val);
1322 	MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1323 	if (oc) {
1324 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oc);
1325 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1326 	}
1327 }
1328 
1329 static uint32_t
1330 isp_pci_rd_reg_2400(ispsoftc_t *isp, int regoff)
1331 {
1332 	uint32_t rv;
1333 	int block = regoff & _BLK_REG_MASK;
1334 
1335 	switch (block) {
1336 	case BIU_BLOCK:
1337 		break;
1338 	case MBOX_BLOCK:
1339 		return (BXR2(isp, IspVirt2Off(isp, regoff)));
1340 	case SXP_BLOCK:
1341 		isp_prt(isp, ISP_LOGWARN, "SXP_BLOCK read at 0x%x", regoff);
1342 		return (0xffffffff);
1343 	case RISC_BLOCK:
1344 		isp_prt(isp, ISP_LOGWARN, "RISC_BLOCK read at 0x%x", regoff);
1345 		return (0xffffffff);
1346 	case DMA_BLOCK:
1347 		isp_prt(isp, ISP_LOGWARN, "DMA_BLOCK read at 0x%x", regoff);
1348 		return (0xffffffff);
1349 	default:
1350 		isp_prt(isp, ISP_LOGWARN, "unknown block read at 0x%x", regoff);
1351 		return (0xffffffff);
1352 	}
1353 
1354 
1355 	switch (regoff) {
1356 	case BIU2400_FLASH_ADDR:
1357 	case BIU2400_FLASH_DATA:
1358 	case BIU2400_ICR:
1359 	case BIU2400_ISR:
1360 	case BIU2400_CSR:
1361 	case BIU2400_REQINP:
1362 	case BIU2400_REQOUTP:
1363 	case BIU2400_RSPINP:
1364 	case BIU2400_RSPOUTP:
1365 	case BIU2400_PRI_REQINP:
1366 	case BIU2400_PRI_REQOUTP:
1367 	case BIU2400_ATIO_RSPINP:
1368 	case BIU2400_ATIO_RSPOUTP:
1369 	case BIU2400_HCCR:
1370 	case BIU2400_GPIOD:
1371 	case BIU2400_GPIOE:
1372 	case BIU2400_HSEMA:
1373 		rv = BXR4(isp, IspVirt2Off(isp, regoff));
1374 		break;
1375 	case BIU2400_R2HSTSLO:
1376 		rv = BXR4(isp, IspVirt2Off(isp, regoff));
1377 		break;
1378 	case BIU2400_R2HSTSHI:
1379 		rv = BXR4(isp, IspVirt2Off(isp, regoff)) >> 16;
1380 		break;
1381 	default:
1382 		isp_prt(isp, ISP_LOGERR,
1383 		    "isp_pci_rd_reg_2400: unknown offset %x", regoff);
1384 		rv = 0xffffffff;
1385 		break;
1386 	}
1387 	return (rv);
1388 }
1389 
1390 static void
1391 isp_pci_wr_reg_2400(ispsoftc_t *isp, int regoff, uint32_t val)
1392 {
1393 	int block = regoff & _BLK_REG_MASK;
1394 
1395 	switch (block) {
1396 	case BIU_BLOCK:
1397 		break;
1398 	case MBOX_BLOCK:
1399 		BXW2(isp, IspVirt2Off(isp, regoff), val);
1400 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1401 		return;
1402 	case SXP_BLOCK:
1403 		isp_prt(isp, ISP_LOGWARN, "SXP_BLOCK write at 0x%x", regoff);
1404 		return;
1405 	case RISC_BLOCK:
1406 		isp_prt(isp, ISP_LOGWARN, "RISC_BLOCK write at 0x%x", regoff);
1407 		return;
1408 	case DMA_BLOCK:
1409 		isp_prt(isp, ISP_LOGWARN, "DMA_BLOCK write at 0x%x", regoff);
1410 		return;
1411 	default:
1412 		isp_prt(isp, ISP_LOGWARN, "unknown block write at 0x%x",
1413 		    regoff);
1414 		break;
1415 	}
1416 
1417 	switch (regoff) {
1418 	case BIU2400_FLASH_ADDR:
1419 	case BIU2400_FLASH_DATA:
1420 	case BIU2400_ICR:
1421 	case BIU2400_ISR:
1422 	case BIU2400_CSR:
1423 	case BIU2400_REQINP:
1424 	case BIU2400_REQOUTP:
1425 	case BIU2400_RSPINP:
1426 	case BIU2400_RSPOUTP:
1427 	case BIU2400_PRI_REQINP:
1428 	case BIU2400_PRI_REQOUTP:
1429 	case BIU2400_ATIO_RSPINP:
1430 	case BIU2400_ATIO_RSPOUTP:
1431 	case BIU2400_HCCR:
1432 	case BIU2400_GPIOD:
1433 	case BIU2400_GPIOE:
1434 	case BIU2400_HSEMA:
1435 		BXW4(isp, IspVirt2Off(isp, regoff), val);
1436 #ifdef MEMORYBARRIERW
1437 		if (regoff == BIU2400_REQINP ||
1438 		    regoff == BIU2400_RSPOUTP ||
1439 		    regoff == BIU2400_PRI_REQINP ||
1440 		    regoff == BIU2400_ATIO_RSPOUTP)
1441 			MEMORYBARRIERW(isp, SYNC_REG,
1442 			    IspVirt2Off(isp, regoff), 4, -1)
1443 		else
1444 #endif
1445 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 4, -1);
1446 		break;
1447 	default:
1448 		isp_prt(isp, ISP_LOGERR,
1449 		    "isp_pci_wr_reg_2400: bad offset 0x%x", regoff);
1450 		break;
1451 	}
1452 }
1453 
1454 
1455 struct imush {
1456 	ispsoftc_t *isp;
1457 	caddr_t vbase;
1458 	int chan;
1459 	int error;
1460 };
1461 
1462 static void imc(void *, bus_dma_segment_t *, int, int);
1463 static void imc1(void *, bus_dma_segment_t *, int, int);
1464 
1465 static void
1466 imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1467 {
1468 	struct imush *imushp = (struct imush *) arg;
1469 	isp_ecmd_t *ecmd;
1470 
1471 	if (error) {
1472 		imushp->error = error;
1473 		return;
1474 	}
1475 	if (nseg != 1) {
1476 		imushp->error = EINVAL;
1477 		return;
1478 	}
1479 	isp_prt(imushp->isp, ISP_LOGDEBUG0, "request/result area @ 0x%jx/0x%jx", (uintmax_t) segs->ds_addr, (uintmax_t) segs->ds_len);
1480 
1481 	imushp->isp->isp_rquest = imushp->vbase;
1482 	imushp->isp->isp_rquest_dma = segs->ds_addr;
1483 	segs->ds_addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(imushp->isp));
1484 	imushp->vbase += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(imushp->isp));
1485 
1486 	imushp->isp->isp_result_dma = segs->ds_addr;
1487 	imushp->isp->isp_result = imushp->vbase;
1488 	segs->ds_addr += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(imushp->isp));
1489 	imushp->vbase += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(imushp->isp));
1490 
1491 	if (imushp->isp->isp_type >= ISP_HA_FC_2300) {
1492         imushp->isp->isp_osinfo.ecmd_dma = segs->ds_addr;
1493         imushp->isp->isp_osinfo.ecmd_free = (isp_ecmd_t *)imushp->vbase;
1494         imushp->isp->isp_osinfo.ecmd_base = imushp->isp->isp_osinfo.ecmd_free;
1495         for (ecmd = imushp->isp->isp_osinfo.ecmd_free; ecmd < &imushp->isp->isp_osinfo.ecmd_free[N_XCMDS]; ecmd++) {
1496             if (ecmd == &imushp->isp->isp_osinfo.ecmd_free[N_XCMDS - 1]) {
1497                 ecmd->next = NULL;
1498             } else {
1499                 ecmd->next = ecmd + 1;
1500             }
1501         }
1502     }
1503 #ifdef	ISP_TARGET_MODE
1504 	segs->ds_addr += (N_XCMDS * XCMD_SIZE);
1505 	imushp->vbase += (N_XCMDS * XCMD_SIZE);
1506 	if (IS_24XX(imushp->isp)) {
1507 		imushp->isp->isp_atioq_dma = segs->ds_addr;
1508 		imushp->isp->isp_atioq = imushp->vbase;
1509 	}
1510 #endif
1511 }
1512 
1513 static void
1514 imc1(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1515 {
1516 	struct imush *imushp = (struct imush *) arg;
1517 	if (error) {
1518 		imushp->error = error;
1519 		return;
1520 	}
1521 	if (nseg != 1) {
1522 		imushp->error = EINVAL;
1523 		return;
1524 	}
1525 	isp_prt(imushp->isp, ISP_LOGDEBUG0, "scdma @ 0x%jx/0x%jx", (uintmax_t) segs->ds_addr, (uintmax_t) segs->ds_len);
1526 	FCPARAM(imushp->isp, imushp->chan)->isp_scdma = segs->ds_addr;
1527 	FCPARAM(imushp->isp, imushp->chan)->isp_scratch = imushp->vbase;
1528 }
1529 
1530 static int
1531 isp_pci_mbxdma(ispsoftc_t *isp)
1532 {
1533 	caddr_t base;
1534 	uint32_t len, nsegs;
1535 	int i, error, cmap = 0;
1536 	bus_size_t slim;	/* segment size */
1537 	bus_addr_t llim;	/* low limit of unavailable dma */
1538 	bus_addr_t hlim;	/* high limit of unavailable dma */
1539 	struct imush im;
1540 
1541 	/*
1542 	 * Already been here? If so, leave...
1543 	 */
1544 	if (isp->isp_rquest) {
1545 		return (0);
1546 	}
1547 	ISP_UNLOCK(isp);
1548 
1549 	if (isp->isp_maxcmds == 0) {
1550 		isp_prt(isp, ISP_LOGERR, "maxcmds not set");
1551 		ISP_LOCK(isp);
1552 		return (1);
1553 	}
1554 
1555 	hlim = BUS_SPACE_MAXADDR;
1556 	if (IS_ULTRA2(isp) || IS_FC(isp) || IS_1240(isp)) {
1557 		if (sizeof (bus_size_t) > 4) {
1558 			slim = (bus_size_t) (1ULL << 32);
1559 		} else {
1560 			slim = (bus_size_t) (1UL << 31);
1561 		}
1562 		llim = BUS_SPACE_MAXADDR;
1563 	} else {
1564 		llim = BUS_SPACE_MAXADDR_32BIT;
1565 		slim = (1UL << 24);
1566 	}
1567 
1568 	len = isp->isp_maxcmds * sizeof (struct isp_pcmd);
1569 	isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1570 	if (isp->isp_osinfo.pcmd_pool == NULL) {
1571 		isp_prt(isp, ISP_LOGERR, "cannot allocate pcmds");
1572 		ISP_LOCK(isp);
1573 		return (1);
1574 	}
1575 
1576 	if (isp->isp_osinfo.sixtyfourbit) {
1577 		nsegs = ISP_NSEG64_MAX;
1578 	} else {
1579 		nsegs = ISP_NSEG_MAX;
1580 	}
1581 
1582 	if (isp_dma_tag_create(BUS_DMA_ROOTARG(ISP_PCD(isp)), 1, slim, llim, hlim, NULL, NULL, BUS_SPACE_MAXSIZE, nsegs, slim, 0, &isp->isp_osinfo.dmat)) {
1583 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1584 		ISP_LOCK(isp);
1585 		isp_prt(isp, ISP_LOGERR, "could not create master dma tag");
1586 		return (1);
1587 	}
1588 
1589 	len = sizeof (isp_hdl_t) * isp->isp_maxcmds;
1590 	isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1591 	if (isp->isp_xflist == NULL) {
1592 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1593 		ISP_LOCK(isp);
1594 		isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array");
1595 		return (1);
1596 	}
1597 	for (len = 0; len < isp->isp_maxcmds - 1; len++) {
1598 		isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1];
1599 	}
1600 	isp->isp_xffree = isp->isp_xflist;
1601 #ifdef	ISP_TARGET_MODE
1602 	len = sizeof (isp_hdl_t) * isp->isp_maxcmds;
1603 	isp->isp_tgtlist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1604 	if (isp->isp_tgtlist == NULL) {
1605 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1606 		free(isp->isp_xflist, M_DEVBUF);
1607 		ISP_LOCK(isp);
1608 		isp_prt(isp, ISP_LOGERR, "cannot alloc tgtlist array");
1609 		return (1);
1610 	}
1611 	for (len = 0; len < isp->isp_maxcmds - 1; len++) {
1612 		isp->isp_tgtlist[len].cmd = &isp->isp_tgtlist[len+1];
1613 	}
1614 	isp->isp_tgtfree = isp->isp_tgtlist;
1615 #endif
1616 
1617 	/*
1618 	 * Allocate and map the request and result queues (and ATIO queue
1619 	 * if we're a 2400 supporting target mode), and a region for
1620 	 * external dma addressable command/status structures (23XX and
1621 	 * later).
1622 	 */
1623 	len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
1624 	len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
1625 #ifdef	ISP_TARGET_MODE
1626 	if (IS_24XX(isp)) {
1627 		len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
1628 	}
1629 #endif
1630 	if (isp->isp_type >= ISP_HA_FC_2300) {
1631 		len += (N_XCMDS * XCMD_SIZE);
1632 	}
1633 
1634 	/*
1635 	 * Create a tag for the control spaces. We don't always need this
1636 	 * to be 32 bits, but we do this for simplicity and speed's sake.
1637 	 */
1638 	if (isp_dma_tag_create(isp->isp_osinfo.dmat, QENTRY_LEN, slim, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR, NULL, NULL, len, 1, slim, 0, &isp->isp_osinfo.cdmat)) {
1639 		isp_prt(isp, ISP_LOGERR, "cannot create a dma tag for control spaces");
1640 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1641 		free(isp->isp_xflist, M_DEVBUF);
1642 #ifdef	ISP_TARGET_MODE
1643 		free(isp->isp_tgtlist, M_DEVBUF);
1644 #endif
1645 		ISP_LOCK(isp);
1646 		return (1);
1647 	}
1648 
1649 	if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &isp->isp_osinfo.cdmap) != 0) {
1650 		isp_prt(isp, ISP_LOGERR, "cannot allocate %d bytes of CCB memory", len);
1651 		bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
1652 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1653 		free(isp->isp_xflist, M_DEVBUF);
1654 #ifdef	ISP_TARGET_MODE
1655 		free(isp->isp_tgtlist, M_DEVBUF);
1656 #endif
1657 		ISP_LOCK(isp);
1658 		return (1);
1659 	}
1660 
1661 	im.isp = isp;
1662 	im.chan = 0;
1663 	im.vbase = base;
1664 	im.error = 0;
1665 
1666 	bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0);
1667 	if (im.error) {
1668 		isp_prt(isp, ISP_LOGERR, "error %d loading dma map for control areas", im.error);
1669 		goto bad;
1670 	}
1671 
1672 	if (IS_FC(isp)) {
1673 		for (cmap = 0; cmap < isp->isp_nchan; cmap++) {
1674 			struct isp_fc *fc = ISP_FC_PC(isp, cmap);
1675 			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)) {
1676 				goto bad;
1677 			}
1678 			if (bus_dmamem_alloc(fc->tdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &fc->tdmap) != 0) {
1679 				bus_dma_tag_destroy(fc->tdmat);
1680 				goto bad;
1681 			}
1682 			im.isp = isp;
1683 			im.chan = cmap;
1684 			im.vbase = base;
1685 			im.error = 0;
1686 			bus_dmamap_load(fc->tdmat, fc->tdmap, base, ISP_FC_SCRLEN, imc1, &im, 0);
1687 			if (im.error) {
1688 				bus_dmamem_free(fc->tdmat, base, fc->tdmap);
1689 				bus_dma_tag_destroy(fc->tdmat);
1690 				goto bad;
1691 			}
1692 			if (isp->isp_type >= ISP_HA_FC_2300) {
1693 				for (i = 0; i < INITIAL_NEXUS_COUNT; i++) {
1694 					struct isp_nexus *n = malloc(sizeof (struct isp_nexus), M_DEVBUF, M_NOWAIT | M_ZERO);
1695 					if (n == NULL) {
1696 						while (fc->nexus_free_list) {
1697 							n = fc->nexus_free_list;
1698 							fc->nexus_free_list = n->next;
1699 							free(n, M_DEVBUF);
1700 						}
1701 						goto bad;
1702 					}
1703 					n->next = fc->nexus_free_list;
1704 					fc->nexus_free_list = n;
1705 				}
1706 			}
1707 		}
1708 	}
1709 
1710 	for (i = 0; i < isp->isp_maxcmds; i++) {
1711 		struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i];
1712 		error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap);
1713 		if (error) {
1714 			isp_prt(isp, ISP_LOGERR, "error %d creating per-cmd DMA maps", error);
1715 			while (--i >= 0) {
1716 				bus_dmamap_destroy(isp->isp_osinfo.dmat, isp->isp_osinfo.pcmd_pool[i].dmap);
1717 			}
1718 			goto bad;
1719 		}
1720 		callout_init_mtx(&pcmd->wdog, &isp->isp_osinfo.lock, 0);
1721 		if (i == isp->isp_maxcmds-1) {
1722 			pcmd->next = NULL;
1723 		} else {
1724 			pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1];
1725 		}
1726 	}
1727 	isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0];
1728 	ISP_LOCK(isp);
1729 	return (0);
1730 
1731 bad:
1732 	while (--cmap >= 0) {
1733 		struct isp_fc *fc = ISP_FC_PC(isp, cmap);
1734 		bus_dmamap_unload(fc->tdmat, fc->tdmap);
1735 		bus_dmamem_free(fc->tdmat, base, fc->tdmap);
1736 		bus_dma_tag_destroy(fc->tdmat);
1737 		while (fc->nexus_free_list) {
1738 			struct isp_nexus *n = fc->nexus_free_list;
1739 			fc->nexus_free_list = n->next;
1740 			free(n, M_DEVBUF);
1741 		}
1742 	}
1743 	if (isp->isp_rquest_dma != 0)
1744 		bus_dmamap_unload(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap);
1745 	bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap);
1746 	bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
1747 	free(isp->isp_xflist, M_DEVBUF);
1748 #ifdef	ISP_TARGET_MODE
1749 	free(isp->isp_tgtlist, M_DEVBUF);
1750 #endif
1751 	free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1752 	isp->isp_rquest = NULL;
1753 	ISP_LOCK(isp);
1754 	return (1);
1755 }
1756 
1757 typedef struct {
1758 	ispsoftc_t *isp;
1759 	void *cmd_token;
1760 	void *rq;	/* original request */
1761 	int error;
1762 	bus_size_t mapsize;
1763 } mush_t;
1764 
1765 #define	MUSHERR_NOQENTRIES	-2
1766 
1767 #ifdef	ISP_TARGET_MODE
1768 static void tdma2_2(void *, bus_dma_segment_t *, int, bus_size_t, int);
1769 static void tdma2(void *, bus_dma_segment_t *, int, int);
1770 
1771 static void
1772 tdma2_2(void *arg, bus_dma_segment_t *dm_segs, int nseg, bus_size_t mapsize, int error)
1773 {
1774 	mush_t *mp;
1775 	mp = (mush_t *)arg;
1776 	mp->mapsize = mapsize;
1777 	tdma2(arg, dm_segs, nseg, error);
1778 }
1779 
1780 static void
1781 tdma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1782 {
1783 	mush_t *mp;
1784 	ispsoftc_t *isp;
1785 	struct ccb_scsiio *csio;
1786 	isp_ddir_t ddir;
1787 	ispreq_t *rq;
1788 
1789 	mp = (mush_t *) arg;
1790 	if (error) {
1791 		mp->error = error;
1792 		return;
1793 	}
1794 	csio = mp->cmd_token;
1795 	isp = mp->isp;
1796 	rq = mp->rq;
1797 	if (nseg) {
1798 		if (isp->isp_osinfo.sixtyfourbit) {
1799 			if (nseg >= ISP_NSEG64_MAX) {
1800 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG64_MAX);
1801 				mp->error = EFAULT;
1802 				return;
1803 			}
1804 			if (rq->req_header.rqs_entry_type == RQSTYPE_CTIO2) {
1805 				rq->req_header.rqs_entry_type = RQSTYPE_CTIO3;
1806 			}
1807 		} else {
1808 			if (nseg >= ISP_NSEG_MAX) {
1809 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG_MAX);
1810 				mp->error = EFAULT;
1811 				return;
1812 			}
1813 		}
1814 		if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1815 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE);
1816 			ddir = ISP_TO_DEVICE;
1817 		} else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1818 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD);
1819 			ddir = ISP_FROM_DEVICE;
1820 		} else {
1821 			dm_segs = NULL;
1822 			nseg = 0;
1823 			ddir = ISP_NOXFR;
1824 		}
1825 	} else {
1826 		dm_segs = NULL;
1827 		nseg = 0;
1828 		ddir = ISP_NOXFR;
1829 	}
1830 
1831 	error = isp_send_tgt_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, &csio->sense_data, csio->sense_len);
1832 	switch (error) {
1833 	case CMD_EAGAIN:
1834 		mp->error = MUSHERR_NOQENTRIES;
1835 	case CMD_QUEUED:
1836 		break;
1837 	default:
1838 		mp->error = EIO;
1839 	}
1840 }
1841 #endif
1842 
1843 static void dma2_2(void *, bus_dma_segment_t *, int, bus_size_t, int);
1844 static void dma2(void *, bus_dma_segment_t *, int, int);
1845 
1846 static void
1847 dma2_2(void *arg, bus_dma_segment_t *dm_segs, int nseg, bus_size_t mapsize, int error)
1848 {
1849 	mush_t *mp;
1850 	mp = (mush_t *)arg;
1851 	mp->mapsize = mapsize;
1852 	dma2(arg, dm_segs, nseg, error);
1853 }
1854 
1855 static void
1856 dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1857 {
1858 	mush_t *mp;
1859 	ispsoftc_t *isp;
1860 	struct ccb_scsiio *csio;
1861 	isp_ddir_t ddir;
1862 	ispreq_t *rq;
1863 
1864 	mp = (mush_t *) arg;
1865 	if (error) {
1866 		mp->error = error;
1867 		return;
1868 	}
1869 	csio = mp->cmd_token;
1870 	isp = mp->isp;
1871 	rq = mp->rq;
1872 	if (nseg) {
1873 		if (isp->isp_osinfo.sixtyfourbit) {
1874 			if (nseg >= ISP_NSEG64_MAX) {
1875 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG64_MAX);
1876 				mp->error = EFAULT;
1877 				return;
1878 			}
1879 			if (rq->req_header.rqs_entry_type == RQSTYPE_T2RQS) {
1880 				rq->req_header.rqs_entry_type = RQSTYPE_T3RQS;
1881 			} else if (rq->req_header.rqs_entry_type == RQSTYPE_REQUEST) {
1882 				rq->req_header.rqs_entry_type = RQSTYPE_A64;
1883 			}
1884 		} else {
1885 			if (nseg >= ISP_NSEG_MAX) {
1886 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG_MAX);
1887 				mp->error = EFAULT;
1888 				return;
1889 			}
1890 		}
1891 		if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1892 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD);
1893 			ddir = ISP_FROM_DEVICE;
1894 		} else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1895 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE);
1896 			ddir = ISP_TO_DEVICE;
1897 		} else {
1898 			ddir = ISP_NOXFR;
1899 		}
1900 	} else {
1901 		dm_segs = NULL;
1902 		nseg = 0;
1903 		ddir = ISP_NOXFR;
1904 	}
1905 
1906 	error = isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, (ispds64_t *)csio->req_map);
1907 	switch (error) {
1908 	case CMD_EAGAIN:
1909 		mp->error = MUSHERR_NOQENTRIES;
1910 		break;
1911 	case CMD_QUEUED:
1912 		break;
1913 	default:
1914 		mp->error = EIO;
1915 		break;
1916 	}
1917 }
1918 
1919 static int
1920 isp_pci_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff)
1921 {
1922 	mush_t mush, *mp;
1923 	void (*eptr)(void *, bus_dma_segment_t *, int, int);
1924 	void (*eptr2)(void *, bus_dma_segment_t *, int, bus_size_t, int);
1925 	int error;
1926 
1927 	mp = &mush;
1928 	mp->isp = isp;
1929 	mp->cmd_token = csio;
1930 	mp->rq = ff;
1931 	mp->error = 0;
1932 	mp->mapsize = 0;
1933 
1934 #ifdef	ISP_TARGET_MODE
1935 	if (csio->ccb_h.func_code == XPT_CONT_TARGET_IO) {
1936 		eptr = tdma2;
1937 		eptr2 = tdma2_2;
1938 	} else
1939 #endif
1940 	{
1941 		eptr = dma2;
1942 		eptr2 = dma2_2;
1943 	}
1944 
1945 
1946 	error = bus_dmamap_load_ccb(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap,
1947 	    (union ccb *)csio, eptr, mp, 0);
1948 	if (error == EINPROGRESS) {
1949 		bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
1950 		mp->error = EINVAL;
1951 		isp_prt(isp, ISP_LOGERR, "deferred dma allocation not supported");
1952 	} else if (error && mp->error == 0) {
1953 #ifdef	DIAGNOSTIC
1954 		isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error);
1955 #endif
1956 		mp->error = error;
1957 	}
1958 	if (mp->error) {
1959 		int retval = CMD_COMPLETE;
1960 		if (mp->error == MUSHERR_NOQENTRIES) {
1961 			retval = CMD_EAGAIN;
1962 		} else if (mp->error == EFBIG) {
1963 			csio->ccb_h.status = CAM_REQ_TOO_BIG;
1964 		} else if (mp->error == EINVAL) {
1965 			csio->ccb_h.status = CAM_REQ_INVALID;
1966 		} else {
1967 			csio->ccb_h.status = CAM_UNREC_HBA_ERROR;
1968 		}
1969 		return (retval);
1970 	}
1971 	return (CMD_QUEUED);
1972 }
1973 
1974 static void
1975 isp_pci_reset0(ispsoftc_t *isp)
1976 {
1977 	ISP_DISABLE_INTS(isp);
1978 }
1979 
1980 static void
1981 isp_pci_reset1(ispsoftc_t *isp)
1982 {
1983 	if (!IS_24XX(isp)) {
1984 		/* Make sure the BIOS is disabled */
1985 		isp_pci_wr_reg(isp, HCCR, PCI_HCCR_CMD_BIOS);
1986 	}
1987 	/* and enable interrupts */
1988 	ISP_ENABLE_INTS(isp);
1989 }
1990 
1991 static void
1992 isp_pci_dumpregs(ispsoftc_t *isp, const char *msg)
1993 {
1994 	struct isp_pcisoftc *pcs = (struct isp_pcisoftc *)isp;
1995 	if (msg)
1996 		printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg);
1997 	else
1998 		printf("%s:\n", device_get_nameunit(isp->isp_dev));
1999 	if (IS_SCSI(isp))
2000 		printf("    biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
2001 	else
2002 		printf("    biu_csr=%x", ISP_READ(isp, BIU2100_CSR));
2003 	printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
2004 	    ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
2005 	printf("risc_hccr=%x\n", ISP_READ(isp, HCCR));
2006 
2007 
2008 	if (IS_SCSI(isp)) {
2009 		ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
2010 		printf("    cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
2011 			ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
2012 			ISP_READ(isp, CDMA_FIFO_STS));
2013 		printf("    ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
2014 			ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
2015 			ISP_READ(isp, DDMA_FIFO_STS));
2016 		printf("    sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
2017 			ISP_READ(isp, SXP_INTERRUPT),
2018 			ISP_READ(isp, SXP_GROSS_ERR),
2019 			ISP_READ(isp, SXP_PINS_CTRL));
2020 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
2021 	}
2022 	printf("    mbox regs: %x %x %x %x %x\n",
2023 	    ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
2024 	    ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
2025 	    ISP_READ(isp, OUTMAILBOX4));
2026 	printf("    PCI Status Command/Status=%x\n",
2027 	    pci_read_config(pcs->pci_dev, PCIR_COMMAND, 1));
2028 }
2029