xref: /freebsd/sys/dev/isp/isp_pci.c (revision 5b9c547c)
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 *, uint32_t *, uint16_t *, uint16_t *);
63 static int isp_pci_rd_isr_2300(ispsoftc_t *, uint32_t *, uint16_t *, uint16_t *);
64 static int isp_pci_rd_isr_2400(ispsoftc_t *, uint32_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 < 127) {
490 		isp_nvports = tval;
491 	}
492 	tval = 1;
493 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "autoconfig", &tval);
494 	isp_autoconfig = tval;
495 	tval = 7;
496 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "quickboot_time", &tval);
497 	isp_quickboot_time = tval;
498 }
499 
500 static void
501 isp_get_pci_options(device_t dev, int *m1, int *m2)
502 {
503 	int tval;
504 	/*
505 	 * Which we should try first - memory mapping or i/o mapping?
506 	 *
507 	 * We used to try memory first followed by i/o on alpha, otherwise
508 	 * the reverse, but we should just try memory first all the time now.
509 	 */
510 	*m1 = PCIM_CMD_MEMEN;
511 	*m2 = PCIM_CMD_PORTEN;
512 
513 	tval = 0;
514 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "prefer_iomap", &tval) == 0 && tval != 0) {
515 		*m1 = PCIM_CMD_PORTEN;
516 		*m2 = PCIM_CMD_MEMEN;
517 	}
518 	tval = 0;
519 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "prefer_memmap", &tval) == 0 && tval != 0) {
520 		*m1 = PCIM_CMD_MEMEN;
521 		*m2 = PCIM_CMD_PORTEN;
522 	}
523 }
524 
525 static void
526 isp_get_specific_options(device_t dev, int chan, ispsoftc_t *isp)
527 {
528 	const char *sptr;
529 	int tval = 0;
530 
531 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "iid", &tval)) {
532 		if (IS_FC(isp)) {
533 			ISP_FC_PC(isp, chan)->default_id = 109 - chan;
534 		} else {
535 #ifdef __sparc64__
536 			ISP_SPI_PC(isp, chan)->iid = OF_getscsinitid(dev);
537 #else
538 			ISP_SPI_PC(isp, chan)->iid = 7;
539 #endif
540 		}
541 	} else {
542 		if (IS_FC(isp)) {
543 			ISP_FC_PC(isp, chan)->default_id = tval - chan;
544 		} else {
545 			ISP_SPI_PC(isp, chan)->iid = tval;
546 		}
547 		isp->isp_confopts |= ISP_CFG_OWNLOOPID;
548 	}
549 
550 	tval = -1;
551 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "role", &tval) == 0) {
552 		switch (tval) {
553 		case ISP_ROLE_NONE:
554 		case ISP_ROLE_INITIATOR:
555 		case ISP_ROLE_TARGET:
556 		case ISP_ROLE_INITIATOR|ISP_ROLE_TARGET:
557 			device_printf(dev, "setting role to 0x%x\n", tval);
558 			break;
559 		default:
560 			tval = -1;
561 			break;
562 		}
563 	}
564 	if (tval == -1) {
565 		tval = ISP_DEFAULT_ROLES;
566 	}
567 
568 	if (IS_SCSI(isp)) {
569 		ISP_SPI_PC(isp, chan)->def_role = tval;
570 		return;
571 	}
572 	ISP_FC_PC(isp, chan)->def_role = tval;
573 
574 	tval = 0;
575 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "fullduplex", &tval) == 0 && tval != 0) {
576 		isp->isp_confopts |= ISP_CFG_FULL_DUPLEX;
577 	}
578 	sptr = 0;
579 	if (resource_string_value(device_get_name(dev), device_get_unit(dev), "topology", (const char **) &sptr) == 0 && sptr != 0) {
580 		if (strcmp(sptr, "lport") == 0) {
581 			isp->isp_confopts |= ISP_CFG_LPORT;
582 		} else if (strcmp(sptr, "nport") == 0) {
583 			isp->isp_confopts |= ISP_CFG_NPORT;
584 		} else if (strcmp(sptr, "lport-only") == 0) {
585 			isp->isp_confopts |= ISP_CFG_LPORT_ONLY;
586 		} else if (strcmp(sptr, "nport-only") == 0) {
587 			isp->isp_confopts |= ISP_CFG_NPORT_ONLY;
588 		}
589 	}
590 
591 	tval = 0;
592 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "nofctape", &tval);
593 	if (tval) {
594 		isp->isp_confopts |= ISP_CFG_NOFCTAPE;
595 	}
596 
597 	tval = 0;
598 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "fctape", &tval);
599 	if (tval) {
600 		isp->isp_confopts &= ~ISP_CFG_NOFCTAPE;
601 		isp->isp_confopts |= ISP_CFG_FCTAPE;
602 	}
603 
604 
605 	/*
606 	 * Because the resource_*_value functions can neither return
607 	 * 64 bit integer values, nor can they be directly coerced
608 	 * to interpret the right hand side of the assignment as
609 	 * you want them to interpret it, we have to force WWN
610 	 * hint replacement to specify WWN strings with a leading
611 	 * 'w' (e..g w50000000aaaa0001). Sigh.
612 	 */
613 	sptr = 0;
614 	tval = resource_string_value(device_get_name(dev), device_get_unit(dev), "portwwn", (const char **) &sptr);
615 	if (tval == 0 && sptr != 0 && *sptr++ == 'w') {
616 		char *eptr = 0;
617 		ISP_FC_PC(isp, chan)->def_wwpn = strtouq(sptr, &eptr, 16);
618 		if (eptr < sptr + 16 || ISP_FC_PC(isp, chan)->def_wwpn == -1) {
619 			device_printf(dev, "mangled portwwn hint '%s'\n", sptr);
620 			ISP_FC_PC(isp, chan)->def_wwpn = 0;
621 		}
622 	}
623 
624 	sptr = 0;
625 	tval = resource_string_value(device_get_name(dev), device_get_unit(dev), "nodewwn", (const char **) &sptr);
626 	if (tval == 0 && sptr != 0 && *sptr++ == 'w') {
627 		char *eptr = 0;
628 		ISP_FC_PC(isp, chan)->def_wwnn = strtouq(sptr, &eptr, 16);
629 		if (eptr < sptr + 16 || ISP_FC_PC(isp, chan)->def_wwnn == 0) {
630 			device_printf(dev, "mangled nodewwn hint '%s'\n", sptr);
631 			ISP_FC_PC(isp, chan)->def_wwnn = 0;
632 		}
633 	}
634 
635 	tval = 0;
636 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "hysteresis", &tval);
637 	if (tval >= 0 && tval < 256) {
638 		ISP_FC_PC(isp, chan)->hysteresis = tval;
639 	} else {
640 		ISP_FC_PC(isp, chan)->hysteresis = isp_fabric_hysteresis;
641 	}
642 
643 	tval = -1;
644 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "loop_down_limit", &tval);
645 	if (tval >= 0 && tval < 0xffff) {
646 		ISP_FC_PC(isp, chan)->loop_down_limit = tval;
647 	} else {
648 		ISP_FC_PC(isp, chan)->loop_down_limit = isp_loop_down_limit;
649 	}
650 
651 	tval = -1;
652 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "gone_device_time", &tval);
653 	if (tval >= 0 && tval < 0xffff) {
654 		ISP_FC_PC(isp, chan)->gone_device_time = tval;
655 	} else {
656 		ISP_FC_PC(isp, chan)->gone_device_time = isp_gone_device_time;
657 	}
658 }
659 
660 static int
661 isp_pci_attach(device_t dev)
662 {
663 	int i, m1, m2, locksetup = 0;
664 	uint32_t data, cmd, linesz, did;
665 	struct isp_pcisoftc *pcs;
666 	ispsoftc_t *isp;
667 	size_t psize, xsize;
668 	char fwname[32];
669 
670 	pcs = device_get_softc(dev);
671 	if (pcs == NULL) {
672 		device_printf(dev, "cannot get softc\n");
673 		return (ENOMEM);
674 	}
675 	memset(pcs, 0, sizeof (*pcs));
676 
677 	pcs->pci_dev = dev;
678 	isp = &pcs->pci_isp;
679 	isp->isp_dev = dev;
680 	isp->isp_nchan = 1;
681 	if (sizeof (bus_addr_t) > 4)
682 		isp->isp_osinfo.sixtyfourbit = 1;
683 
684 	/*
685 	 * Get Generic Options
686 	 */
687 	isp_nvports = 0;
688 	isp_get_generic_options(dev, isp);
689 
690 	/*
691 	 * Check to see if options have us disabled
692 	 */
693 	if (isp->isp_osinfo.disabled) {
694 		/*
695 		 * But return zero to preserve unit numbering
696 		 */
697 		return (0);
698 	}
699 
700 	/*
701 	 * Get PCI options- which in this case are just mapping preferences.
702 	 */
703 	isp_get_pci_options(dev, &m1, &m2);
704 
705 	linesz = PCI_DFLT_LNSZ;
706 	pcs->irq = pcs->regs = NULL;
707 	pcs->rgd = pcs->rtp = pcs->iqd = 0;
708 
709 	pcs->rtp = (m1 == PCIM_CMD_MEMEN)? SYS_RES_MEMORY : SYS_RES_IOPORT;
710 	pcs->rgd = (m1 == PCIM_CMD_MEMEN)? MEM_MAP_REG : IO_MAP_REG;
711 	pcs->regs = bus_alloc_resource_any(dev, pcs->rtp, &pcs->rgd, RF_ACTIVE);
712 	if (pcs->regs == NULL) {
713 		pcs->rtp = (m2 == PCIM_CMD_MEMEN)? SYS_RES_MEMORY : SYS_RES_IOPORT;
714 		pcs->rgd = (m2 == PCIM_CMD_MEMEN)? MEM_MAP_REG : IO_MAP_REG;
715 		pcs->regs = bus_alloc_resource_any(dev, pcs->rtp, &pcs->rgd, RF_ACTIVE);
716 	}
717 	if (pcs->regs == NULL) {
718 		device_printf(dev, "unable to map any ports\n");
719 		goto bad;
720 	}
721 	if (bootverbose) {
722 		device_printf(dev, "using %s space register mapping\n", (pcs->rgd == IO_MAP_REG)? "I/O" : "Memory");
723 	}
724 	isp->isp_bus_tag = rman_get_bustag(pcs->regs);
725 	isp->isp_bus_handle = rman_get_bushandle(pcs->regs);
726 
727 	pcs->pci_dev = dev;
728 	pcs->pci_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
729 	pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS_OFF;
730 	pcs->pci_poff[SXP_BLOCK >> _BLK_REG_SHFT] = PCI_SXP_REGS_OFF;
731 	pcs->pci_poff[RISC_BLOCK >> _BLK_REG_SHFT] = PCI_RISC_REGS_OFF;
732 	pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
733 
734 	switch (pci_get_devid(dev)) {
735 	case PCI_QLOGIC_ISP1020:
736 		did = 0x1040;
737 		isp->isp_mdvec = &mdvec;
738 		isp->isp_type = ISP_HA_SCSI_UNKNOWN;
739 		break;
740 	case PCI_QLOGIC_ISP1080:
741 		did = 0x1080;
742 		isp->isp_mdvec = &mdvec_1080;
743 		isp->isp_type = ISP_HA_SCSI_1080;
744 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
745 		break;
746 	case PCI_QLOGIC_ISP1240:
747 		did = 0x1080;
748 		isp->isp_mdvec = &mdvec_1080;
749 		isp->isp_type = ISP_HA_SCSI_1240;
750 		isp->isp_nchan = 2;
751 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
752 		break;
753 	case PCI_QLOGIC_ISP1280:
754 		did = 0x1080;
755 		isp->isp_mdvec = &mdvec_1080;
756 		isp->isp_type = ISP_HA_SCSI_1280;
757 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
758 		break;
759 	case PCI_QLOGIC_ISP10160:
760 		did = 0x12160;
761 		isp->isp_mdvec = &mdvec_12160;
762 		isp->isp_type = ISP_HA_SCSI_10160;
763 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
764 		break;
765 	case PCI_QLOGIC_ISP12160:
766 		did = 0x12160;
767 		isp->isp_nchan = 2;
768 		isp->isp_mdvec = &mdvec_12160;
769 		isp->isp_type = ISP_HA_SCSI_12160;
770 		pcs->pci_poff[DMA_BLOCK >> _BLK_REG_SHFT] = ISP1080_DMA_REGS_OFF;
771 		break;
772 	case PCI_QLOGIC_ISP2100:
773 		did = 0x2100;
774 		isp->isp_mdvec = &mdvec_2100;
775 		isp->isp_type = ISP_HA_FC_2100;
776 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2100_OFF;
777 		if (pci_get_revid(dev) < 3) {
778 			/*
779 			 * XXX: Need to get the actual revision
780 			 * XXX: number of the 2100 FB. At any rate,
781 			 * XXX: lower cache line size for early revision
782 			 * XXX; boards.
783 			 */
784 			linesz = 1;
785 		}
786 		break;
787 	case PCI_QLOGIC_ISP2200:
788 		did = 0x2200;
789 		isp->isp_mdvec = &mdvec_2200;
790 		isp->isp_type = ISP_HA_FC_2200;
791 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2100_OFF;
792 		break;
793 	case PCI_QLOGIC_ISP2300:
794 		did = 0x2300;
795 		isp->isp_mdvec = &mdvec_2300;
796 		isp->isp_type = ISP_HA_FC_2300;
797 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
798 		break;
799 	case PCI_QLOGIC_ISP2312:
800 	case PCI_QLOGIC_ISP6312:
801 		did = 0x2300;
802 		isp->isp_mdvec = &mdvec_2300;
803 		isp->isp_type = ISP_HA_FC_2312;
804 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
805 		break;
806 	case PCI_QLOGIC_ISP2322:
807 	case PCI_QLOGIC_ISP6322:
808 		did = 0x2322;
809 		isp->isp_mdvec = &mdvec_2300;
810 		isp->isp_type = ISP_HA_FC_2322;
811 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2300_OFF;
812 		break;
813 	case PCI_QLOGIC_ISP2422:
814 	case PCI_QLOGIC_ISP2432:
815 		did = 0x2400;
816 		isp->isp_nchan += isp_nvports;
817 		isp->isp_mdvec = &mdvec_2400;
818 		isp->isp_type = ISP_HA_FC_2400;
819 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
820 		break;
821 	case PCI_QLOGIC_ISP2532:
822 		did = 0x2500;
823 		isp->isp_nchan += isp_nvports;
824 		isp->isp_mdvec = &mdvec_2500;
825 		isp->isp_type = ISP_HA_FC_2500;
826 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
827 		break;
828 	case PCI_QLOGIC_ISP5432:
829 		did = 0x2500;
830 		isp->isp_mdvec = &mdvec_2500;
831 		isp->isp_type = ISP_HA_FC_2500;
832 		pcs->pci_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = PCI_MBOX_REGS2400_OFF;
833 		break;
834 	default:
835 		device_printf(dev, "unknown device type\n");
836 		goto bad;
837 		break;
838 	}
839 	isp->isp_revision = pci_get_revid(dev);
840 
841 	if (IS_FC(isp)) {
842 		psize = sizeof (fcparam);
843 		xsize = sizeof (struct isp_fc);
844 	} else {
845 		psize = sizeof (sdparam);
846 		xsize = sizeof (struct isp_spi);
847 	}
848 	psize *= isp->isp_nchan;
849 	xsize *= isp->isp_nchan;
850 	isp->isp_param = malloc(psize, M_DEVBUF, M_NOWAIT | M_ZERO);
851 	if (isp->isp_param == NULL) {
852 		device_printf(dev, "cannot allocate parameter data\n");
853 		goto bad;
854 	}
855 	isp->isp_osinfo.pc.ptr = malloc(xsize, M_DEVBUF, M_NOWAIT | M_ZERO);
856 	if (isp->isp_osinfo.pc.ptr == NULL) {
857 		device_printf(dev, "cannot allocate parameter data\n");
858 		goto bad;
859 	}
860 
861 	/*
862 	 * Now that we know who we are (roughly) get/set specific options
863 	 */
864 	for (i = 0; i < isp->isp_nchan; i++) {
865 		isp_get_specific_options(dev, i, isp);
866 	}
867 
868 	/*
869 	 * The 'it' suffix really only matters for SCSI cards in target mode.
870 	 */
871 	isp->isp_osinfo.fw = NULL;
872 	if (IS_SCSI(isp) && (ISP_SPI_PC(isp, 0)->def_role & ISP_ROLE_TARGET)) {
873 		snprintf(fwname, sizeof (fwname), "isp_%04x_it", did);
874 		isp->isp_osinfo.fw = firmware_get(fwname);
875 	} else if (IS_24XX(isp)) {
876 		snprintf(fwname, sizeof (fwname), "isp_%04x_multi", did);
877 		isp->isp_osinfo.fw = firmware_get(fwname);
878 	}
879 	if (isp->isp_osinfo.fw == NULL) {
880 		snprintf(fwname, sizeof (fwname), "isp_%04x", did);
881 		isp->isp_osinfo.fw = firmware_get(fwname);
882 	}
883 	if (isp->isp_osinfo.fw != NULL) {
884 		isp_prt(isp, ISP_LOGCONFIG, "loaded firmware %s", fwname);
885 		isp->isp_mdvec->dv_ispfw = isp->isp_osinfo.fw->data;
886 	}
887 
888 	/*
889 	 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
890 	 */
891 	cmd = pci_read_config(dev, PCIR_COMMAND, 2);
892 	cmd |= PCIM_CMD_SEREN | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_INVEN;
893 	if (IS_2300(isp)) {	/* per QLogic errata */
894 		cmd &= ~PCIM_CMD_INVEN;
895 	}
896 	if (IS_2322(isp) || pci_get_devid(dev) == PCI_QLOGIC_ISP6312) {
897 		cmd &= ~PCIM_CMD_INTX_DISABLE;
898 	}
899 	if (IS_24XX(isp)) {
900 		cmd &= ~PCIM_CMD_INTX_DISABLE;
901 	}
902 	pci_write_config(dev, PCIR_COMMAND, cmd, 2);
903 
904 	/*
905 	 * Make sure the Cache Line Size register is set sensibly.
906 	 */
907 	data = pci_read_config(dev, PCIR_CACHELNSZ, 1);
908 	if (data == 0 || (linesz != PCI_DFLT_LNSZ && data != linesz)) {
909 		isp_prt(isp, ISP_LOGDEBUG0, "set PCI line size to %d from %d", linesz, data);
910 		data = linesz;
911 		pci_write_config(dev, PCIR_CACHELNSZ, data, 1);
912 	}
913 
914 	/*
915 	 * Make sure the Latency Timer is sane.
916 	 */
917 	data = pci_read_config(dev, PCIR_LATTIMER, 1);
918 	if (data < PCI_DFLT_LTNCY) {
919 		data = PCI_DFLT_LTNCY;
920 		isp_prt(isp, ISP_LOGDEBUG0, "set PCI latency to %d", data);
921 		pci_write_config(dev, PCIR_LATTIMER, data, 1);
922 	}
923 
924 	/*
925 	 * Make sure we've disabled the ROM.
926 	 */
927 	data = pci_read_config(dev, PCIR_ROMADDR, 4);
928 	data &= ~1;
929 	pci_write_config(dev, PCIR_ROMADDR, data, 4);
930 
931 	/*
932 	 * Do MSI
933 	 *
934 	 * NB: MSI-X needs to be disabled for the 2432 (PCI-Express)
935 	 */
936 	if (IS_24XX(isp) || IS_2322(isp)) {
937 		pcs->msicount = pci_msi_count(dev);
938 		if (pcs->msicount > 1) {
939 			pcs->msicount = 1;
940 		}
941 		if (pci_alloc_msi(dev, &pcs->msicount) == 0) {
942 			pcs->iqd = 1;
943 		} else {
944 			pcs->iqd = 0;
945 		}
946 	}
947 	pcs->irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &pcs->iqd, RF_ACTIVE | RF_SHAREABLE);
948 	if (pcs->irq == NULL) {
949 		device_printf(dev, "could not allocate interrupt\n");
950 		goto bad;
951 	}
952 
953 	/* Make sure the lock is set up. */
954 	mtx_init(&isp->isp_osinfo.lock, "isp", NULL, MTX_DEF);
955 	locksetup++;
956 
957 	if (isp_setup_intr(dev, pcs->irq, ISP_IFLAGS, NULL, isp_platform_intr, isp, &pcs->ih)) {
958 		device_printf(dev, "could not setup interrupt\n");
959 		goto bad;
960 	}
961 
962 	/*
963 	 * Last minute checks...
964 	 */
965 	if (IS_23XX(isp) || IS_24XX(isp)) {
966 		isp->isp_port = pci_get_function(dev);
967 	}
968 
969 	/*
970 	 * Make sure we're in reset state.
971 	 */
972 	ISP_LOCK(isp);
973 	isp_reset(isp, 1);
974 	if (isp->isp_state != ISP_RESETSTATE) {
975 		ISP_UNLOCK(isp);
976 		goto bad;
977 	}
978 	isp_init(isp);
979 	if (isp->isp_state == ISP_INITSTATE) {
980 		isp->isp_state = ISP_RUNSTATE;
981 	}
982 	ISP_UNLOCK(isp);
983 	if (isp_attach(isp)) {
984 		ISP_LOCK(isp);
985 		isp_uninit(isp);
986 		ISP_UNLOCK(isp);
987 		goto bad;
988 	}
989 	return (0);
990 
991 bad:
992 	if (pcs->ih) {
993 		(void) bus_teardown_intr(dev, pcs->irq, pcs->ih);
994 	}
995 	if (locksetup) {
996 		mtx_destroy(&isp->isp_osinfo.lock);
997 	}
998 	if (pcs->irq) {
999 		(void) bus_release_resource(dev, SYS_RES_IRQ, pcs->iqd, pcs->irq);
1000 	}
1001 	if (pcs->msicount) {
1002 		pci_release_msi(dev);
1003 	}
1004 	if (pcs->regs) {
1005 		(void) bus_release_resource(dev, pcs->rtp, pcs->rgd, pcs->regs);
1006 	}
1007 	if (pcs->pci_isp.isp_param) {
1008 		free(pcs->pci_isp.isp_param, M_DEVBUF);
1009 		pcs->pci_isp.isp_param = NULL;
1010 	}
1011 	if (pcs->pci_isp.isp_osinfo.pc.ptr) {
1012 		free(pcs->pci_isp.isp_osinfo.pc.ptr, M_DEVBUF);
1013 		pcs->pci_isp.isp_osinfo.pc.ptr = NULL;
1014 	}
1015 	return (ENXIO);
1016 }
1017 
1018 static int
1019 isp_pci_detach(device_t dev)
1020 {
1021 	struct isp_pcisoftc *pcs;
1022 	ispsoftc_t *isp;
1023 	int status;
1024 
1025 	pcs = device_get_softc(dev);
1026 	if (pcs == NULL) {
1027 		return (ENXIO);
1028 	}
1029 	isp = (ispsoftc_t *) pcs;
1030 	status = isp_detach(isp);
1031 	if (status)
1032 		return (status);
1033 	ISP_LOCK(isp);
1034 	isp_uninit(isp);
1035 	if (pcs->ih) {
1036 		(void) bus_teardown_intr(dev, pcs->irq, pcs->ih);
1037 	}
1038 	ISP_UNLOCK(isp);
1039 	mtx_destroy(&isp->isp_osinfo.lock);
1040 	(void) bus_release_resource(dev, SYS_RES_IRQ, pcs->iqd, pcs->irq);
1041 	if (pcs->msicount) {
1042 		pci_release_msi(dev);
1043 	}
1044 	(void) bus_release_resource(dev, pcs->rtp, pcs->rgd, pcs->regs);
1045 	/*
1046 	 * XXX: THERE IS A LOT OF LEAKAGE HERE
1047 	 */
1048 	if (pcs->pci_isp.isp_param) {
1049 		free(pcs->pci_isp.isp_param, M_DEVBUF);
1050 		pcs->pci_isp.isp_param = NULL;
1051 	}
1052 	if (pcs->pci_isp.isp_osinfo.pc.ptr) {
1053 		free(pcs->pci_isp.isp_osinfo.pc.ptr, M_DEVBUF);
1054 		pcs->pci_isp.isp_osinfo.pc.ptr = NULL;
1055 	}
1056 	return (0);
1057 }
1058 
1059 #define	IspVirt2Off(a, x)	\
1060 	(((struct isp_pcisoftc *)a)->pci_poff[((x) & _BLK_REG_MASK) >> \
1061 	_BLK_REG_SHFT] + ((x) & 0xfff))
1062 
1063 #define	BXR2(isp, off)		\
1064 	bus_space_read_2(isp->isp_bus_tag, isp->isp_bus_handle, off)
1065 #define	BXW2(isp, off, v)	\
1066 	bus_space_write_2(isp->isp_bus_tag, isp->isp_bus_handle, off, v)
1067 #define	BXR4(isp, off)		\
1068 	bus_space_read_4(isp->isp_bus_tag, isp->isp_bus_handle, off)
1069 #define	BXW4(isp, off, v)	\
1070 	bus_space_write_4(isp->isp_bus_tag, isp->isp_bus_handle, off, v)
1071 
1072 
1073 static ISP_INLINE int
1074 isp_pci_rd_debounced(ispsoftc_t *isp, int off, uint16_t *rp)
1075 {
1076 	uint32_t val0, val1;
1077 	int i = 0;
1078 
1079 	do {
1080 		val0 = BXR2(isp, IspVirt2Off(isp, off));
1081 		val1 = BXR2(isp, IspVirt2Off(isp, off));
1082 	} while (val0 != val1 && ++i < 1000);
1083 	if (val0 != val1) {
1084 		return (1);
1085 	}
1086 	*rp = val0;
1087 	return (0);
1088 }
1089 
1090 static int
1091 isp_pci_rd_isr(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbp)
1092 {
1093 	uint16_t isr, sema;
1094 
1095 	if (IS_2100(isp)) {
1096 		if (isp_pci_rd_debounced(isp, BIU_ISR, &isr)) {
1097 		    return (0);
1098 		}
1099 		if (isp_pci_rd_debounced(isp, BIU_SEMA, &sema)) {
1100 		    return (0);
1101 		}
1102 	} else {
1103 		isr = BXR2(isp, IspVirt2Off(isp, BIU_ISR));
1104 		sema = BXR2(isp, IspVirt2Off(isp, BIU_SEMA));
1105 	}
1106 	isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
1107 	isr &= INT_PENDING_MASK(isp);
1108 	sema &= BIU_SEMA_LOCK;
1109 	if (isr == 0 && sema == 0) {
1110 		return (0);
1111 	}
1112 	*isrp = isr;
1113 	if ((*semap = sema) != 0) {
1114 		if (IS_2100(isp)) {
1115 			if (isp_pci_rd_debounced(isp, OUTMAILBOX0, mbp)) {
1116 				return (0);
1117 			}
1118 		} else {
1119 			*mbp = BXR2(isp, IspVirt2Off(isp, OUTMAILBOX0));
1120 		}
1121 	}
1122 	return (1);
1123 }
1124 
1125 static int
1126 isp_pci_rd_isr_2300(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbox0p)
1127 {
1128 	uint32_t hccr;
1129 	uint32_t r2hisr;
1130 
1131 	if (!(BXR2(isp, IspVirt2Off(isp, BIU_ISR) & BIU2100_ISR_RISC_INT))) {
1132 		*isrp = 0;
1133 		return (0);
1134 	}
1135 	r2hisr = BXR4(isp, IspVirt2Off(isp, BIU_R2HSTSLO));
1136 	isp_prt(isp, ISP_LOGDEBUG3, "RISC2HOST ISR 0x%x", r2hisr);
1137 	if ((r2hisr & BIU_R2HST_INTR) == 0) {
1138 		*isrp = 0;
1139 		return (0);
1140 	}
1141 	switch (r2hisr & BIU_R2HST_ISTAT_MASK) {
1142 	case ISPR2HST_ROM_MBX_OK:
1143 	case ISPR2HST_ROM_MBX_FAIL:
1144 	case ISPR2HST_MBX_OK:
1145 	case ISPR2HST_MBX_FAIL:
1146 	case ISPR2HST_ASYNC_EVENT:
1147 		*isrp = r2hisr & 0xffff;
1148 		*mbox0p = (r2hisr >> 16);
1149 		*semap = 1;
1150 		return (1);
1151 	case ISPR2HST_RIO_16:
1152 		*isrp = r2hisr & 0xffff;
1153 		*mbox0p = ASYNC_RIO16_1;
1154 		*semap = 1;
1155 		return (1);
1156 	case ISPR2HST_FPOST:
1157 		*isrp = r2hisr & 0xffff;
1158 		*mbox0p = ASYNC_CMD_CMPLT;
1159 		*semap = 1;
1160 		return (1);
1161 	case ISPR2HST_FPOST_CTIO:
1162 		*isrp = r2hisr & 0xffff;
1163 		*mbox0p = ASYNC_CTIO_DONE;
1164 		*semap = 1;
1165 		return (1);
1166 	case ISPR2HST_RSPQ_UPDATE:
1167 		*isrp = r2hisr & 0xffff;
1168 		*mbox0p = 0;
1169 		*semap = 0;
1170 		return (1);
1171 	default:
1172 		hccr = ISP_READ(isp, HCCR);
1173 		if (hccr & HCCR_PAUSE) {
1174 			ISP_WRITE(isp, HCCR, HCCR_RESET);
1175 			isp_prt(isp, ISP_LOGERR, "RISC paused at interrupt (%x->%x)", hccr, ISP_READ(isp, HCCR));
1176 			ISP_WRITE(isp, BIU_ICR, 0);
1177 		} else {
1178 			isp_prt(isp, ISP_LOGERR, "unknown interrupt 0x%x\n", r2hisr);
1179 		}
1180 		return (0);
1181 	}
1182 }
1183 
1184 static int
1185 isp_pci_rd_isr_2400(ispsoftc_t *isp, uint32_t *isrp, uint16_t *semap, uint16_t *mbox0p)
1186 {
1187 	uint32_t r2hisr;
1188 
1189 	r2hisr = BXR4(isp, IspVirt2Off(isp, BIU2400_R2HSTSLO));
1190 	isp_prt(isp, ISP_LOGDEBUG3, "RISC2HOST ISR 0x%x", r2hisr);
1191 	if ((r2hisr & BIU2400_R2HST_INTR) == 0) {
1192 		*isrp = 0;
1193 		return (0);
1194 	}
1195 	switch (r2hisr & BIU2400_R2HST_ISTAT_MASK) {
1196 	case ISP2400R2HST_ROM_MBX_OK:
1197 	case ISP2400R2HST_ROM_MBX_FAIL:
1198 	case ISP2400R2HST_MBX_OK:
1199 	case ISP2400R2HST_MBX_FAIL:
1200 	case ISP2400R2HST_ASYNC_EVENT:
1201 		*isrp = r2hisr & 0xffff;
1202 		*mbox0p = (r2hisr >> 16);
1203 		*semap = 1;
1204 		return (1);
1205 	case ISP2400R2HST_RSPQ_UPDATE:
1206 	case ISP2400R2HST_ATIO_RSPQ_UPDATE:
1207 	case ISP2400R2HST_ATIO_RQST_UPDATE:
1208 		*isrp = r2hisr & 0xffff;
1209 		*mbox0p = 0;
1210 		*semap = 0;
1211 		return (1);
1212 	default:
1213 		ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
1214 		isp_prt(isp, ISP_LOGERR, "unknown interrupt 0x%x\n", r2hisr);
1215 		return (0);
1216 	}
1217 }
1218 
1219 static uint32_t
1220 isp_pci_rd_reg(ispsoftc_t *isp, int regoff)
1221 {
1222 	uint16_t rv;
1223 	int oldconf = 0;
1224 
1225 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1226 		/*
1227 		 * We will assume that someone has paused the RISC processor.
1228 		 */
1229 		oldconf = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1230 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf | BIU_PCI_CONF1_SXP);
1231 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1232 	}
1233 	rv = BXR2(isp, IspVirt2Off(isp, regoff));
1234 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1235 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf);
1236 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1237 	}
1238 	return (rv);
1239 }
1240 
1241 static void
1242 isp_pci_wr_reg(ispsoftc_t *isp, int regoff, uint32_t val)
1243 {
1244 	int oldconf = 0;
1245 
1246 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1247 		/*
1248 		 * We will assume that someone has paused the RISC processor.
1249 		 */
1250 		oldconf = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1251 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1252 		    oldconf | BIU_PCI_CONF1_SXP);
1253 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1254 	}
1255 	BXW2(isp, IspVirt2Off(isp, regoff), val);
1256 	MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1257 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1258 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oldconf);
1259 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1260 	}
1261 
1262 }
1263 
1264 static uint32_t
1265 isp_pci_rd_reg_1080(ispsoftc_t *isp, int regoff)
1266 {
1267 	uint32_t rv, oc = 0;
1268 
1269 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1270 		uint32_t tc;
1271 		/*
1272 		 * We will assume that someone has paused the RISC processor.
1273 		 */
1274 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1275 		tc = oc & ~BIU_PCI1080_CONF1_DMA;
1276 		if (regoff & SXP_BANK1_SELECT)
1277 			tc |= BIU_PCI1080_CONF1_SXP1;
1278 		else
1279 			tc |= BIU_PCI1080_CONF1_SXP0;
1280 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), tc);
1281 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1282 	} else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) {
1283 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1284 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1285 		    oc | BIU_PCI1080_CONF1_DMA);
1286 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1287 	}
1288 	rv = BXR2(isp, IspVirt2Off(isp, regoff));
1289 	if (oc) {
1290 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oc);
1291 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1292 	}
1293 	return (rv);
1294 }
1295 
1296 static void
1297 isp_pci_wr_reg_1080(ispsoftc_t *isp, int regoff, uint32_t val)
1298 {
1299 	int oc = 0;
1300 
1301 	if ((regoff & _BLK_REG_MASK) == SXP_BLOCK) {
1302 		uint32_t tc;
1303 		/*
1304 		 * We will assume that someone has paused the RISC processor.
1305 		 */
1306 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1307 		tc = oc & ~BIU_PCI1080_CONF1_DMA;
1308 		if (regoff & SXP_BANK1_SELECT)
1309 			tc |= BIU_PCI1080_CONF1_SXP1;
1310 		else
1311 			tc |= BIU_PCI1080_CONF1_SXP0;
1312 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), tc);
1313 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1314 	} else if ((regoff & _BLK_REG_MASK) == DMA_BLOCK) {
1315 		oc = BXR2(isp, IspVirt2Off(isp, BIU_CONF1));
1316 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1),
1317 		    oc | BIU_PCI1080_CONF1_DMA);
1318 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1319 	}
1320 	BXW2(isp, IspVirt2Off(isp, regoff), val);
1321 	MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1322 	if (oc) {
1323 		BXW2(isp, IspVirt2Off(isp, BIU_CONF1), oc);
1324 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, BIU_CONF1), 2, -1);
1325 	}
1326 }
1327 
1328 static uint32_t
1329 isp_pci_rd_reg_2400(ispsoftc_t *isp, int regoff)
1330 {
1331 	uint32_t rv;
1332 	int block = regoff & _BLK_REG_MASK;
1333 
1334 	switch (block) {
1335 	case BIU_BLOCK:
1336 		break;
1337 	case MBOX_BLOCK:
1338 		return (BXR2(isp, IspVirt2Off(isp, regoff)));
1339 	case SXP_BLOCK:
1340 		isp_prt(isp, ISP_LOGWARN, "SXP_BLOCK read at 0x%x", regoff);
1341 		return (0xffffffff);
1342 	case RISC_BLOCK:
1343 		isp_prt(isp, ISP_LOGWARN, "RISC_BLOCK read at 0x%x", regoff);
1344 		return (0xffffffff);
1345 	case DMA_BLOCK:
1346 		isp_prt(isp, ISP_LOGWARN, "DMA_BLOCK read at 0x%x", regoff);
1347 		return (0xffffffff);
1348 	default:
1349 		isp_prt(isp, ISP_LOGWARN, "unknown block read at 0x%x", regoff);
1350 		return (0xffffffff);
1351 	}
1352 
1353 
1354 	switch (regoff) {
1355 	case BIU2400_FLASH_ADDR:
1356 	case BIU2400_FLASH_DATA:
1357 	case BIU2400_ICR:
1358 	case BIU2400_ISR:
1359 	case BIU2400_CSR:
1360 	case BIU2400_REQINP:
1361 	case BIU2400_REQOUTP:
1362 	case BIU2400_RSPINP:
1363 	case BIU2400_RSPOUTP:
1364 	case BIU2400_PRI_REQINP:
1365 	case BIU2400_PRI_REQOUTP:
1366 	case BIU2400_ATIO_RSPINP:
1367 	case BIU2400_ATIO_RSPOUTP:
1368 	case BIU2400_HCCR:
1369 	case BIU2400_GPIOD:
1370 	case BIU2400_GPIOE:
1371 	case BIU2400_HSEMA:
1372 		rv = BXR4(isp, IspVirt2Off(isp, regoff));
1373 		break;
1374 	case BIU2400_R2HSTSLO:
1375 		rv = BXR4(isp, IspVirt2Off(isp, regoff));
1376 		break;
1377 	case BIU2400_R2HSTSHI:
1378 		rv = BXR4(isp, IspVirt2Off(isp, regoff)) >> 16;
1379 		break;
1380 	default:
1381 		isp_prt(isp, ISP_LOGERR,
1382 		    "isp_pci_rd_reg_2400: unknown offset %x", regoff);
1383 		rv = 0xffffffff;
1384 		break;
1385 	}
1386 	return (rv);
1387 }
1388 
1389 static void
1390 isp_pci_wr_reg_2400(ispsoftc_t *isp, int regoff, uint32_t val)
1391 {
1392 	int block = regoff & _BLK_REG_MASK;
1393 
1394 	switch (block) {
1395 	case BIU_BLOCK:
1396 		break;
1397 	case MBOX_BLOCK:
1398 		BXW2(isp, IspVirt2Off(isp, regoff), val);
1399 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 2, -1);
1400 		return;
1401 	case SXP_BLOCK:
1402 		isp_prt(isp, ISP_LOGWARN, "SXP_BLOCK write at 0x%x", regoff);
1403 		return;
1404 	case RISC_BLOCK:
1405 		isp_prt(isp, ISP_LOGWARN, "RISC_BLOCK write at 0x%x", regoff);
1406 		return;
1407 	case DMA_BLOCK:
1408 		isp_prt(isp, ISP_LOGWARN, "DMA_BLOCK write at 0x%x", regoff);
1409 		return;
1410 	default:
1411 		isp_prt(isp, ISP_LOGWARN, "unknown block write at 0x%x",
1412 		    regoff);
1413 		break;
1414 	}
1415 
1416 	switch (regoff) {
1417 	case BIU2400_FLASH_ADDR:
1418 	case BIU2400_FLASH_DATA:
1419 	case BIU2400_ICR:
1420 	case BIU2400_ISR:
1421 	case BIU2400_CSR:
1422 	case BIU2400_REQINP:
1423 	case BIU2400_REQOUTP:
1424 	case BIU2400_RSPINP:
1425 	case BIU2400_RSPOUTP:
1426 	case BIU2400_PRI_REQINP:
1427 	case BIU2400_PRI_REQOUTP:
1428 	case BIU2400_ATIO_RSPINP:
1429 	case BIU2400_ATIO_RSPOUTP:
1430 	case BIU2400_HCCR:
1431 	case BIU2400_GPIOD:
1432 	case BIU2400_GPIOE:
1433 	case BIU2400_HSEMA:
1434 		BXW4(isp, IspVirt2Off(isp, regoff), val);
1435 #ifdef MEMORYBARRIERW
1436 		if (regoff == BIU2400_REQINP ||
1437 		    regoff == BIU2400_RSPOUTP ||
1438 		    regoff == BIU2400_PRI_REQINP ||
1439 		    regoff == BIU2400_ATIO_RSPOUTP)
1440 			MEMORYBARRIERW(isp, SYNC_REG,
1441 			    IspVirt2Off(isp, regoff), 4, -1)
1442 		else
1443 #endif
1444 		MEMORYBARRIER(isp, SYNC_REG, IspVirt2Off(isp, regoff), 4, -1);
1445 		break;
1446 	default:
1447 		isp_prt(isp, ISP_LOGERR,
1448 		    "isp_pci_wr_reg_2400: bad offset 0x%x", regoff);
1449 		break;
1450 	}
1451 }
1452 
1453 
1454 struct imush {
1455 	ispsoftc_t *isp;
1456 	caddr_t vbase;
1457 	int chan;
1458 	int error;
1459 };
1460 
1461 static void imc(void *, bus_dma_segment_t *, int, int);
1462 static void imc1(void *, bus_dma_segment_t *, int, int);
1463 
1464 static void
1465 imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1466 {
1467 	struct imush *imushp = (struct imush *) arg;
1468 	isp_ecmd_t *ecmd;
1469 
1470 	if (error) {
1471 		imushp->error = error;
1472 		return;
1473 	}
1474 	if (nseg != 1) {
1475 		imushp->error = EINVAL;
1476 		return;
1477 	}
1478 	isp_prt(imushp->isp, ISP_LOGDEBUG0, "request/result area @ 0x%jx/0x%jx", (uintmax_t) segs->ds_addr, (uintmax_t) segs->ds_len);
1479 
1480 	imushp->isp->isp_rquest = imushp->vbase;
1481 	imushp->isp->isp_rquest_dma = segs->ds_addr;
1482 	segs->ds_addr += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(imushp->isp));
1483 	imushp->vbase += ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(imushp->isp));
1484 
1485 	imushp->isp->isp_result_dma = segs->ds_addr;
1486 	imushp->isp->isp_result = imushp->vbase;
1487 	segs->ds_addr += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(imushp->isp));
1488 	imushp->vbase += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(imushp->isp));
1489 
1490 	if (imushp->isp->isp_type >= ISP_HA_FC_2300) {
1491         imushp->isp->isp_osinfo.ecmd_dma = segs->ds_addr;
1492         imushp->isp->isp_osinfo.ecmd_free = (isp_ecmd_t *)imushp->vbase;
1493         imushp->isp->isp_osinfo.ecmd_base = imushp->isp->isp_osinfo.ecmd_free;
1494         for (ecmd = imushp->isp->isp_osinfo.ecmd_free; ecmd < &imushp->isp->isp_osinfo.ecmd_free[N_XCMDS]; ecmd++) {
1495             if (ecmd == &imushp->isp->isp_osinfo.ecmd_free[N_XCMDS - 1]) {
1496                 ecmd->next = NULL;
1497             } else {
1498                 ecmd->next = ecmd + 1;
1499             }
1500         }
1501     }
1502 #ifdef	ISP_TARGET_MODE
1503 	segs->ds_addr += (N_XCMDS * XCMD_SIZE);
1504 	imushp->vbase += (N_XCMDS * XCMD_SIZE);
1505 	if (IS_24XX(imushp->isp)) {
1506 		imushp->isp->isp_atioq_dma = segs->ds_addr;
1507 		imushp->isp->isp_atioq = imushp->vbase;
1508 	}
1509 #endif
1510 }
1511 
1512 static void
1513 imc1(void *arg, bus_dma_segment_t *segs, int nseg, int error)
1514 {
1515 	struct imush *imushp = (struct imush *) arg;
1516 	if (error) {
1517 		imushp->error = error;
1518 		return;
1519 	}
1520 	if (nseg != 1) {
1521 		imushp->error = EINVAL;
1522 		return;
1523 	}
1524 	isp_prt(imushp->isp, ISP_LOGDEBUG0, "scdma @ 0x%jx/0x%jx", (uintmax_t) segs->ds_addr, (uintmax_t) segs->ds_len);
1525 	FCPARAM(imushp->isp, imushp->chan)->isp_scdma = segs->ds_addr;
1526 	FCPARAM(imushp->isp, imushp->chan)->isp_scratch = imushp->vbase;
1527 }
1528 
1529 static int
1530 isp_pci_mbxdma(ispsoftc_t *isp)
1531 {
1532 	caddr_t base;
1533 	uint32_t len, nsegs;
1534 	int i, error, cmap = 0;
1535 	bus_size_t slim;	/* segment size */
1536 	bus_addr_t llim;	/* low limit of unavailable dma */
1537 	bus_addr_t hlim;	/* high limit of unavailable dma */
1538 	struct imush im;
1539 
1540 	/*
1541 	 * Already been here? If so, leave...
1542 	 */
1543 	if (isp->isp_rquest) {
1544 		return (0);
1545 	}
1546 	ISP_UNLOCK(isp);
1547 
1548 	if (isp->isp_maxcmds == 0) {
1549 		isp_prt(isp, ISP_LOGERR, "maxcmds not set");
1550 		ISP_LOCK(isp);
1551 		return (1);
1552 	}
1553 
1554 	hlim = BUS_SPACE_MAXADDR;
1555 	if (IS_ULTRA2(isp) || IS_FC(isp) || IS_1240(isp)) {
1556 		if (sizeof (bus_size_t) > 4) {
1557 			slim = (bus_size_t) (1ULL << 32);
1558 		} else {
1559 			slim = (bus_size_t) (1UL << 31);
1560 		}
1561 		llim = BUS_SPACE_MAXADDR;
1562 	} else {
1563 		llim = BUS_SPACE_MAXADDR_32BIT;
1564 		slim = (1UL << 24);
1565 	}
1566 
1567 	len = isp->isp_maxcmds * sizeof (struct isp_pcmd);
1568 	isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1569 	if (isp->isp_osinfo.pcmd_pool == NULL) {
1570 		isp_prt(isp, ISP_LOGERR, "cannot allocate pcmds");
1571 		ISP_LOCK(isp);
1572 		return (1);
1573 	}
1574 
1575 	if (isp->isp_osinfo.sixtyfourbit) {
1576 		nsegs = ISP_NSEG64_MAX;
1577 	} else {
1578 		nsegs = ISP_NSEG_MAX;
1579 	}
1580 #ifdef	ISP_TARGET_MODE
1581 	/*
1582 	 * XXX: We don't really support 64 bit target mode for parallel scsi yet
1583 	 */
1584 	if (IS_SCSI(isp) && isp->isp_osinfo.sixtyfourbit) {
1585 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1586 		isp_prt(isp, ISP_LOGERR, "we cannot do DAC for SPI cards yet");
1587 		ISP_LOCK(isp);
1588 		return (1);
1589 	}
1590 #endif
1591 
1592 	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)) {
1593 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1594 		ISP_LOCK(isp);
1595 		isp_prt(isp, ISP_LOGERR, "could not create master dma tag");
1596 		return (1);
1597 	}
1598 
1599 	len = sizeof (isp_hdl_t) * isp->isp_maxcmds;
1600 	isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1601 	if (isp->isp_xflist == NULL) {
1602 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1603 		ISP_LOCK(isp);
1604 		isp_prt(isp, ISP_LOGERR, "cannot alloc xflist array");
1605 		return (1);
1606 	}
1607 	for (len = 0; len < isp->isp_maxcmds - 1; len++) {
1608 		isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1];
1609 	}
1610 	isp->isp_xffree = isp->isp_xflist;
1611 #ifdef	ISP_TARGET_MODE
1612 	len = sizeof (isp_hdl_t) * isp->isp_maxcmds;
1613 	isp->isp_tgtlist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1614 	if (isp->isp_tgtlist == NULL) {
1615 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1616 		free(isp->isp_xflist, M_DEVBUF);
1617 		ISP_LOCK(isp);
1618 		isp_prt(isp, ISP_LOGERR, "cannot alloc tgtlist array");
1619 		return (1);
1620 	}
1621 	for (len = 0; len < isp->isp_maxcmds - 1; len++) {
1622 		isp->isp_tgtlist[len].cmd = &isp->isp_tgtlist[len+1];
1623 	}
1624 	isp->isp_tgtfree = isp->isp_tgtlist;
1625 #endif
1626 
1627 	/*
1628 	 * Allocate and map the request and result queues (and ATIO queue
1629 	 * if we're a 2400 supporting target mode), and a region for
1630 	 * external dma addressable command/status structures (23XX and
1631 	 * later).
1632 	 */
1633 	len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
1634 	len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
1635 #ifdef	ISP_TARGET_MODE
1636 	if (IS_24XX(isp)) {
1637 		len += ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
1638 	}
1639 #endif
1640 	if (isp->isp_type >= ISP_HA_FC_2300) {
1641 		len += (N_XCMDS * XCMD_SIZE);
1642 	}
1643 
1644 	/*
1645 	 * Create a tag for the control spaces. We don't always need this
1646 	 * to be 32 bits, but we do this for simplicity and speed's sake.
1647 	 */
1648 	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)) {
1649 		isp_prt(isp, ISP_LOGERR, "cannot create a dma tag for control spaces");
1650 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1651 		free(isp->isp_xflist, M_DEVBUF);
1652 #ifdef	ISP_TARGET_MODE
1653 		free(isp->isp_tgtlist, M_DEVBUF);
1654 #endif
1655 		ISP_LOCK(isp);
1656 		return (1);
1657 	}
1658 
1659 	if (bus_dmamem_alloc(isp->isp_osinfo.cdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &isp->isp_osinfo.cdmap) != 0) {
1660 		isp_prt(isp, ISP_LOGERR, "cannot allocate %d bytes of CCB memory", len);
1661 		bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
1662 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1663 		free(isp->isp_xflist, M_DEVBUF);
1664 #ifdef	ISP_TARGET_MODE
1665 		free(isp->isp_tgtlist, M_DEVBUF);
1666 #endif
1667 		ISP_LOCK(isp);
1668 		return (1);
1669 	}
1670 
1671 	im.isp = isp;
1672 	im.chan = 0;
1673 	im.vbase = base;
1674 	im.error = 0;
1675 
1676 	bus_dmamap_load(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap, base, len, imc, &im, 0);
1677 	if (im.error) {
1678 		isp_prt(isp, ISP_LOGERR, "error %d loading dma map for control areas", im.error);
1679 		goto bad;
1680 	}
1681 
1682 	if (IS_FC(isp)) {
1683 		for (cmap = 0; cmap < isp->isp_nchan; cmap++) {
1684 			struct isp_fc *fc = ISP_FC_PC(isp, cmap);
1685 			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)) {
1686 				goto bad;
1687 			}
1688 			if (bus_dmamem_alloc(fc->tdmat, (void **)&base, BUS_DMA_NOWAIT | BUS_DMA_COHERENT, &fc->tdmap) != 0) {
1689 				bus_dma_tag_destroy(fc->tdmat);
1690 				goto bad;
1691 			}
1692 			im.isp = isp;
1693 			im.chan = cmap;
1694 			im.vbase = base;
1695 			im.error = 0;
1696 			bus_dmamap_load(fc->tdmat, fc->tdmap, base, ISP_FC_SCRLEN, imc1, &im, 0);
1697 			if (im.error) {
1698 				bus_dmamem_free(fc->tdmat, base, fc->tdmap);
1699 				bus_dma_tag_destroy(fc->tdmat);
1700 				goto bad;
1701 			}
1702 			if (isp->isp_type >= ISP_HA_FC_2300) {
1703 				for (i = 0; i < INITIAL_NEXUS_COUNT; i++) {
1704 					struct isp_nexus *n = malloc(sizeof (struct isp_nexus), M_DEVBUF, M_NOWAIT | M_ZERO);
1705 					if (n == NULL) {
1706 						while (fc->nexus_free_list) {
1707 							n = fc->nexus_free_list;
1708 							fc->nexus_free_list = n->next;
1709 							free(n, M_DEVBUF);
1710 						}
1711 						goto bad;
1712 					}
1713 					n->next = fc->nexus_free_list;
1714 					fc->nexus_free_list = n;
1715 				}
1716 			}
1717 		}
1718 	}
1719 
1720 	for (i = 0; i < isp->isp_maxcmds; i++) {
1721 		struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i];
1722 		error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap);
1723 		if (error) {
1724 			isp_prt(isp, ISP_LOGERR, "error %d creating per-cmd DMA maps", error);
1725 			while (--i >= 0) {
1726 				bus_dmamap_destroy(isp->isp_osinfo.dmat, isp->isp_osinfo.pcmd_pool[i].dmap);
1727 			}
1728 			goto bad;
1729 		}
1730 		callout_init_mtx(&pcmd->wdog, &isp->isp_osinfo.lock, 0);
1731 		if (i == isp->isp_maxcmds-1) {
1732 			pcmd->next = NULL;
1733 		} else {
1734 			pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1];
1735 		}
1736 	}
1737 	isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0];
1738 	ISP_LOCK(isp);
1739 	return (0);
1740 
1741 bad:
1742 	while (--cmap >= 0) {
1743 		struct isp_fc *fc = ISP_FC_PC(isp, cmap);
1744 		bus_dmamap_unload(fc->tdmat, fc->tdmap);
1745 		bus_dmamem_free(fc->tdmat, base, fc->tdmap);
1746 		bus_dma_tag_destroy(fc->tdmat);
1747 		while (fc->nexus_free_list) {
1748 			struct isp_nexus *n = fc->nexus_free_list;
1749 			fc->nexus_free_list = n->next;
1750 			free(n, M_DEVBUF);
1751 		}
1752 	}
1753 	if (isp->isp_rquest_dma != 0)
1754 		bus_dmamap_unload(isp->isp_osinfo.cdmat, isp->isp_osinfo.cdmap);
1755 	bus_dmamem_free(isp->isp_osinfo.cdmat, base, isp->isp_osinfo.cdmap);
1756 	bus_dma_tag_destroy(isp->isp_osinfo.cdmat);
1757 	free(isp->isp_xflist, M_DEVBUF);
1758 #ifdef	ISP_TARGET_MODE
1759 	free(isp->isp_tgtlist, M_DEVBUF);
1760 #endif
1761 	free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1762 	isp->isp_rquest = NULL;
1763 	ISP_LOCK(isp);
1764 	return (1);
1765 }
1766 
1767 typedef struct {
1768 	ispsoftc_t *isp;
1769 	void *cmd_token;
1770 	void *rq;	/* original request */
1771 	int error;
1772 	bus_size_t mapsize;
1773 } mush_t;
1774 
1775 #define	MUSHERR_NOQENTRIES	-2
1776 
1777 #ifdef	ISP_TARGET_MODE
1778 static void tdma2_2(void *, bus_dma_segment_t *, int, bus_size_t, int);
1779 static void tdma2(void *, bus_dma_segment_t *, int, int);
1780 
1781 static void
1782 tdma2_2(void *arg, bus_dma_segment_t *dm_segs, int nseg, bus_size_t mapsize, int error)
1783 {
1784 	mush_t *mp;
1785 	mp = (mush_t *)arg;
1786 	mp->mapsize = mapsize;
1787 	tdma2(arg, dm_segs, nseg, error);
1788 }
1789 
1790 static void
1791 tdma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1792 {
1793 	mush_t *mp;
1794 	ispsoftc_t *isp;
1795 	struct ccb_scsiio *csio;
1796 	isp_ddir_t ddir;
1797 	ispreq_t *rq;
1798 
1799 	mp = (mush_t *) arg;
1800 	if (error) {
1801 		mp->error = error;
1802 		return;
1803 	}
1804 	csio = mp->cmd_token;
1805 	isp = mp->isp;
1806 	rq = mp->rq;
1807 	if (nseg) {
1808 		if (isp->isp_osinfo.sixtyfourbit) {
1809 			if (nseg >= ISP_NSEG64_MAX) {
1810 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG64_MAX);
1811 				mp->error = EFAULT;
1812 				return;
1813 			}
1814 			if (rq->req_header.rqs_entry_type == RQSTYPE_CTIO2) {
1815 				rq->req_header.rqs_entry_type = RQSTYPE_CTIO3;
1816 			}
1817 		} else {
1818 			if (nseg >= ISP_NSEG_MAX) {
1819 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG_MAX);
1820 				mp->error = EFAULT;
1821 				return;
1822 			}
1823 		}
1824 		if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1825 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE);
1826 			ddir = ISP_TO_DEVICE;
1827 		} else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1828 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD);
1829 			ddir = ISP_FROM_DEVICE;
1830 		} else {
1831 			dm_segs = NULL;
1832 			nseg = 0;
1833 			ddir = ISP_NOXFR;
1834 		}
1835 	} else {
1836 		dm_segs = NULL;
1837 		nseg = 0;
1838 		ddir = ISP_NOXFR;
1839 	}
1840 
1841 	error = isp_send_tgt_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, &csio->sense_data, csio->sense_len);
1842 	switch (error) {
1843 	case CMD_EAGAIN:
1844 		mp->error = MUSHERR_NOQENTRIES;
1845 	case CMD_QUEUED:
1846 		break;
1847 	default:
1848 		mp->error = EIO;
1849 	}
1850 }
1851 #endif
1852 
1853 static void dma2_2(void *, bus_dma_segment_t *, int, bus_size_t, int);
1854 static void dma2(void *, bus_dma_segment_t *, int, int);
1855 
1856 static void
1857 dma2_2(void *arg, bus_dma_segment_t *dm_segs, int nseg, bus_size_t mapsize, int error)
1858 {
1859 	mush_t *mp;
1860 	mp = (mush_t *)arg;
1861 	mp->mapsize = mapsize;
1862 	dma2(arg, dm_segs, nseg, error);
1863 }
1864 
1865 static void
1866 dma2(void *arg, bus_dma_segment_t *dm_segs, int nseg, int error)
1867 {
1868 	mush_t *mp;
1869 	ispsoftc_t *isp;
1870 	struct ccb_scsiio *csio;
1871 	isp_ddir_t ddir;
1872 	ispreq_t *rq;
1873 
1874 	mp = (mush_t *) arg;
1875 	if (error) {
1876 		mp->error = error;
1877 		return;
1878 	}
1879 	csio = mp->cmd_token;
1880 	isp = mp->isp;
1881 	rq = mp->rq;
1882 	if (nseg) {
1883 		if (isp->isp_osinfo.sixtyfourbit) {
1884 			if (nseg >= ISP_NSEG64_MAX) {
1885 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG64_MAX);
1886 				mp->error = EFAULT;
1887 				return;
1888 			}
1889 			if (rq->req_header.rqs_entry_type == RQSTYPE_T2RQS) {
1890 				rq->req_header.rqs_entry_type = RQSTYPE_T3RQS;
1891 			} else if (rq->req_header.rqs_entry_type == RQSTYPE_REQUEST) {
1892 				rq->req_header.rqs_entry_type = RQSTYPE_A64;
1893 			}
1894 		} else {
1895 			if (nseg >= ISP_NSEG_MAX) {
1896 				isp_prt(isp, ISP_LOGERR, "number of segments (%d) exceed maximum we can support (%d)", nseg, ISP_NSEG_MAX);
1897 				mp->error = EFAULT;
1898 				return;
1899 			}
1900 		}
1901 		if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_IN) {
1902 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREREAD);
1903 			ddir = ISP_FROM_DEVICE;
1904 		} else if ((csio->ccb_h.flags & CAM_DIR_MASK) == CAM_DIR_OUT) {
1905 			bus_dmamap_sync(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap, BUS_DMASYNC_PREWRITE);
1906 			ddir = ISP_TO_DEVICE;
1907 		} else {
1908 			ddir = ISP_NOXFR;
1909 		}
1910 	} else {
1911 		dm_segs = NULL;
1912 		nseg = 0;
1913 		ddir = ISP_NOXFR;
1914 	}
1915 
1916 	error = isp_send_cmd(isp, rq, dm_segs, nseg, XS_XFRLEN(csio), ddir, (ispds64_t *)csio->req_map);
1917 	switch (error) {
1918 	case CMD_EAGAIN:
1919 		mp->error = MUSHERR_NOQENTRIES;
1920 		break;
1921 	case CMD_QUEUED:
1922 		break;
1923 	default:
1924 		mp->error = EIO;
1925 		break;
1926 	}
1927 }
1928 
1929 static int
1930 isp_pci_dmasetup(ispsoftc_t *isp, struct ccb_scsiio *csio, void *ff)
1931 {
1932 	mush_t mush, *mp;
1933 	void (*eptr)(void *, bus_dma_segment_t *, int, int);
1934 	void (*eptr2)(void *, bus_dma_segment_t *, int, bus_size_t, int);
1935 	int error;
1936 
1937 	mp = &mush;
1938 	mp->isp = isp;
1939 	mp->cmd_token = csio;
1940 	mp->rq = ff;
1941 	mp->error = 0;
1942 	mp->mapsize = 0;
1943 
1944 #ifdef	ISP_TARGET_MODE
1945 	if (csio->ccb_h.func_code == XPT_CONT_TARGET_IO) {
1946 		eptr = tdma2;
1947 		eptr2 = tdma2_2;
1948 	} else
1949 #endif
1950 	{
1951 		eptr = dma2;
1952 		eptr2 = dma2_2;
1953 	}
1954 
1955 
1956 	error = bus_dmamap_load_ccb(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap,
1957 	    (union ccb *)csio, eptr, mp, 0);
1958 	if (error == EINPROGRESS) {
1959 		bus_dmamap_unload(isp->isp_osinfo.dmat, PISP_PCMD(csio)->dmap);
1960 		mp->error = EINVAL;
1961 		isp_prt(isp, ISP_LOGERR, "deferred dma allocation not supported");
1962 	} else if (error && mp->error == 0) {
1963 #ifdef	DIAGNOSTIC
1964 		isp_prt(isp, ISP_LOGERR, "error %d in dma mapping code", error);
1965 #endif
1966 		mp->error = error;
1967 	}
1968 	if (mp->error) {
1969 		int retval = CMD_COMPLETE;
1970 		if (mp->error == MUSHERR_NOQENTRIES) {
1971 			retval = CMD_EAGAIN;
1972 		} else if (mp->error == EFBIG) {
1973 			csio->ccb_h.status = CAM_REQ_TOO_BIG;
1974 		} else if (mp->error == EINVAL) {
1975 			csio->ccb_h.status = CAM_REQ_INVALID;
1976 		} else {
1977 			csio->ccb_h.status = CAM_UNREC_HBA_ERROR;
1978 		}
1979 		return (retval);
1980 	}
1981 	return (CMD_QUEUED);
1982 }
1983 
1984 static void
1985 isp_pci_reset0(ispsoftc_t *isp)
1986 {
1987 	ISP_DISABLE_INTS(isp);
1988 }
1989 
1990 static void
1991 isp_pci_reset1(ispsoftc_t *isp)
1992 {
1993 	if (!IS_24XX(isp)) {
1994 		/* Make sure the BIOS is disabled */
1995 		isp_pci_wr_reg(isp, HCCR, PCI_HCCR_CMD_BIOS);
1996 	}
1997 	/* and enable interrupts */
1998 	ISP_ENABLE_INTS(isp);
1999 }
2000 
2001 static void
2002 isp_pci_dumpregs(ispsoftc_t *isp, const char *msg)
2003 {
2004 	struct isp_pcisoftc *pcs = (struct isp_pcisoftc *)isp;
2005 	if (msg)
2006 		printf("%s: %s\n", device_get_nameunit(isp->isp_dev), msg);
2007 	else
2008 		printf("%s:\n", device_get_nameunit(isp->isp_dev));
2009 	if (IS_SCSI(isp))
2010 		printf("    biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
2011 	else
2012 		printf("    biu_csr=%x", ISP_READ(isp, BIU2100_CSR));
2013 	printf(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
2014 	    ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
2015 	printf("risc_hccr=%x\n", ISP_READ(isp, HCCR));
2016 
2017 
2018 	if (IS_SCSI(isp)) {
2019 		ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
2020 		printf("    cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
2021 			ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
2022 			ISP_READ(isp, CDMA_FIFO_STS));
2023 		printf("    ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
2024 			ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
2025 			ISP_READ(isp, DDMA_FIFO_STS));
2026 		printf("    sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
2027 			ISP_READ(isp, SXP_INTERRUPT),
2028 			ISP_READ(isp, SXP_GROSS_ERR),
2029 			ISP_READ(isp, SXP_PINS_CTRL));
2030 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
2031 	}
2032 	printf("    mbox regs: %x %x %x %x %x\n",
2033 	    ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
2034 	    ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
2035 	    ISP_READ(isp, OUTMAILBOX4));
2036 	printf("    PCI Status Command/Status=%x\n",
2037 	    pci_read_config(pcs->pci_dev, PCIR_COMMAND, 1));
2038 }
2039