xref: /freebsd/sys/dev/isp/isp_pci.c (revision 3494f7c0)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2009-2020 Alexander Motin <mav@FreeBSD.org>
5  * Copyright (c) 1997-2008 by Matthew Jacob
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice immediately at the beginning of the file, without modification,
13  *    this list of conditions, and the following disclaimer.
14  * 2. The name of the author may not be used to endorse or promote products
15  *    derived from this software without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
21  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  */
29 /*
30  * PCI specific probe and attach routines for Qlogic ISP SCSI adapters.
31  * FreeBSD Version.
32  */
33 
34 #include <sys/param.h>
35 #include <sys/systm.h>
36 #include <sys/kernel.h>
37 #include <sys/module.h>
38 #include <sys/linker.h>
39 #include <sys/firmware.h>
40 #include <sys/bus.h>
41 #include <sys/stdint.h>
42 #include <dev/pci/pcireg.h>
43 #include <dev/pci/pcivar.h>
44 #include <machine/bus.h>
45 #include <machine/resource.h>
46 #include <sys/rman.h>
47 #include <sys/malloc.h>
48 #include <sys/uio.h>
49 #include <dev/isp/isp_freebsd.h>
50 
51 static uint32_t isp_pci_rd_reg_2400(ispsoftc_t *, int);
52 static void isp_pci_wr_reg_2400(ispsoftc_t *, int, uint32_t);
53 static uint32_t isp_pci_rd_reg_2600(ispsoftc_t *, int);
54 static void isp_pci_wr_reg_2600(ispsoftc_t *, int, uint32_t);
55 static void isp_pci_run_isr_2400(ispsoftc_t *);
56 static int isp_pci_mbxdma(ispsoftc_t *);
57 static void isp_pci_mbxdmafree(ispsoftc_t *);
58 static int isp_pci_irqsetup(ispsoftc_t *);
59 
60 static struct ispmdvec mdvec_2400 = {
61 	isp_pci_run_isr_2400,
62 	isp_pci_rd_reg_2400,
63 	isp_pci_wr_reg_2400,
64 	isp_pci_mbxdma,
65 	isp_send_cmd,
66 	isp_pci_irqsetup,
67 	NULL
68 };
69 
70 static struct ispmdvec mdvec_2500 = {
71 	isp_pci_run_isr_2400,
72 	isp_pci_rd_reg_2400,
73 	isp_pci_wr_reg_2400,
74 	isp_pci_mbxdma,
75 	isp_send_cmd,
76 	isp_pci_irqsetup,
77 	NULL
78 };
79 
80 static struct ispmdvec mdvec_2600 = {
81 	isp_pci_run_isr_2400,
82 	isp_pci_rd_reg_2600,
83 	isp_pci_wr_reg_2600,
84 	isp_pci_mbxdma,
85 	isp_send_cmd,
86 	isp_pci_irqsetup,
87 	NULL
88 };
89 
90 static struct ispmdvec mdvec_2700 = {
91 	isp_pci_run_isr_2400,
92 	isp_pci_rd_reg_2600,
93 	isp_pci_wr_reg_2600,
94 	isp_pci_mbxdma,
95 	isp_send_cmd,
96 	isp_pci_irqsetup,
97 	NULL
98 };
99 
100 static struct ispmdvec mdvec_2800 = {
101 	isp_pci_run_isr_2400,
102 	isp_pci_rd_reg_2600,
103 	isp_pci_wr_reg_2600,
104 	isp_pci_mbxdma,
105 	isp_send_cmd,
106 	isp_pci_irqsetup,
107 	NULL
108 };
109 
110 #ifndef	PCIM_CMD_INVEN
111 #define	PCIM_CMD_INVEN			0x10
112 #endif
113 #ifndef	PCIM_CMD_BUSMASTEREN
114 #define	PCIM_CMD_BUSMASTEREN		0x0004
115 #endif
116 #ifndef	PCIM_CMD_PERRESPEN
117 #define	PCIM_CMD_PERRESPEN		0x0040
118 #endif
119 #ifndef	PCIM_CMD_SEREN
120 #define	PCIM_CMD_SEREN			0x0100
121 #endif
122 #ifndef	PCIM_CMD_INTX_DISABLE
123 #define	PCIM_CMD_INTX_DISABLE		0x0400
124 #endif
125 
126 #ifndef	PCIR_COMMAND
127 #define	PCIR_COMMAND			0x04
128 #endif
129 
130 #ifndef	PCIR_CACHELNSZ
131 #define	PCIR_CACHELNSZ			0x0c
132 #endif
133 
134 #ifndef	PCIR_LATTIMER
135 #define	PCIR_LATTIMER			0x0d
136 #endif
137 
138 #ifndef	PCIR_ROMADDR
139 #define	PCIR_ROMADDR			0x30
140 #endif
141 
142 #define	PCI_VENDOR_QLOGIC		0x1077
143 
144 #define	PCI_PRODUCT_QLOGIC_ISP2422	0x2422
145 #define	PCI_PRODUCT_QLOGIC_ISP2432	0x2432
146 #define	PCI_PRODUCT_QLOGIC_ISP2532	0x2532
147 #define	PCI_PRODUCT_QLOGIC_ISP5432	0x5432
148 #define	PCI_PRODUCT_QLOGIC_ISP2031	0x2031
149 #define	PCI_PRODUCT_QLOGIC_ISP8031	0x8031
150 #define	PCI_PRODUCT_QLOGIC_ISP2684	0x2171
151 #define	PCI_PRODUCT_QLOGIC_ISP2692	0x2b61
152 #define	PCI_PRODUCT_QLOGIC_ISP2714	0x2071
153 #define	PCI_PRODUCT_QLOGIC_ISP2722	0x2261
154 #define	PCI_PRODUCT_QLOGIC_ISP2812	0x2281
155 #define	PCI_PRODUCT_QLOGIC_ISP2814	0x2081
156 
157 #define	PCI_QLOGIC_ISP2422	\
158 	((PCI_PRODUCT_QLOGIC_ISP2422 << 16) | PCI_VENDOR_QLOGIC)
159 #define	PCI_QLOGIC_ISP2432	\
160 	((PCI_PRODUCT_QLOGIC_ISP2432 << 16) | PCI_VENDOR_QLOGIC)
161 #define	PCI_QLOGIC_ISP2532	\
162 	((PCI_PRODUCT_QLOGIC_ISP2532 << 16) | PCI_VENDOR_QLOGIC)
163 #define	PCI_QLOGIC_ISP5432	\
164 	((PCI_PRODUCT_QLOGIC_ISP5432 << 16) | PCI_VENDOR_QLOGIC)
165 #define	PCI_QLOGIC_ISP2031	\
166 	((PCI_PRODUCT_QLOGIC_ISP2031 << 16) | PCI_VENDOR_QLOGIC)
167 #define	PCI_QLOGIC_ISP8031	\
168 	((PCI_PRODUCT_QLOGIC_ISP8031 << 16) | PCI_VENDOR_QLOGIC)
169 #define	PCI_QLOGIC_ISP2684	\
170 	((PCI_PRODUCT_QLOGIC_ISP2684 << 16) | PCI_VENDOR_QLOGIC)
171 #define	PCI_QLOGIC_ISP2692	\
172 	((PCI_PRODUCT_QLOGIC_ISP2692 << 16) | PCI_VENDOR_QLOGIC)
173 #define	PCI_QLOGIC_ISP2714	\
174 	((PCI_PRODUCT_QLOGIC_ISP2714 << 16) | PCI_VENDOR_QLOGIC)
175 #define	PCI_QLOGIC_ISP2722	\
176 	((PCI_PRODUCT_QLOGIC_ISP2722 << 16) | PCI_VENDOR_QLOGIC)
177 #define	PCI_QLOGIC_ISP2812	\
178 	((PCI_PRODUCT_QLOGIC_ISP2812 << 16) | PCI_VENDOR_QLOGIC)
179 #define	PCI_QLOGIC_ISP2814	\
180 	((PCI_PRODUCT_QLOGIC_ISP2814 << 16) | PCI_VENDOR_QLOGIC)
181 
182 #define	PCI_DFLT_LTNCY	0x40
183 #define	PCI_DFLT_LNSZ	0x10
184 
185 static int isp_pci_probe (device_t);
186 static int isp_pci_attach (device_t);
187 static int isp_pci_detach (device_t);
188 
189 
190 struct isp_pcisoftc {
191 	ispsoftc_t			pci_isp;
192 	struct resource *		regs;
193 	struct resource *		regs1;
194 	struct resource *		regs2;
195 	struct {
196 		int				iqd;
197 		struct resource *		irq;
198 		void *				ih;
199 	} irq[ISP_MAX_IRQS];
200 	int				rtp;
201 	int				rgd;
202 	int				rtp1;
203 	int				rgd1;
204 	int				rtp2;
205 	int				rgd2;
206 	bus_dma_tag_t			dmat;
207 	int				msicount;
208 };
209 
210 
211 static device_method_t isp_pci_methods[] = {
212 	/* Device interface */
213 	DEVMETHOD(device_probe,		isp_pci_probe),
214 	DEVMETHOD(device_attach,	isp_pci_attach),
215 	DEVMETHOD(device_detach,	isp_pci_detach),
216 	{ 0, 0 }
217 };
218 
219 static driver_t isp_pci_driver = {
220 	"isp", isp_pci_methods, sizeof (struct isp_pcisoftc)
221 };
222 
223 DRIVER_MODULE(isp, pci, isp_pci_driver, 0, 0);
224 MODULE_DEPEND(isp, cam, 1, 1, 1);
225 MODULE_DEPEND(isp, firmware, 1, 1, 1);
226 static int isp_nvports = 0;
227 
228 static int
229 isp_pci_probe(device_t dev)
230 {
231 	switch ((pci_get_device(dev) << 16) | (pci_get_vendor(dev))) {
232 	case PCI_QLOGIC_ISP2422:
233 		device_set_desc(dev, "Qlogic ISP 2422 PCI FC-AL Adapter");
234 		break;
235 	case PCI_QLOGIC_ISP2432:
236 		device_set_desc(dev, "Qlogic ISP 2432 PCI FC-AL Adapter");
237 		break;
238 	case PCI_QLOGIC_ISP2532:
239 		device_set_desc(dev, "Qlogic ISP 2532 PCI FC-AL Adapter");
240 		break;
241 	case PCI_QLOGIC_ISP5432:
242 		device_set_desc(dev, "Qlogic ISP 5432 PCI FC-AL Adapter");
243 		break;
244 	case PCI_QLOGIC_ISP2031:
245 		device_set_desc(dev, "Qlogic ISP 2031 PCI FC-AL Adapter");
246 		break;
247 	case PCI_QLOGIC_ISP8031:
248 		device_set_desc(dev, "Qlogic ISP 8031 PCI FCoE Adapter");
249 		break;
250 	case PCI_QLOGIC_ISP2684:
251 		device_set_desc(dev, "Qlogic ISP 2684 PCI FC Adapter");
252 		break;
253 	case PCI_QLOGIC_ISP2692:
254 		device_set_desc(dev, "Qlogic ISP 2692 PCI FC Adapter");
255 		break;
256 	case PCI_QLOGIC_ISP2714:
257 		device_set_desc(dev, "Qlogic ISP 2714 PCI FC Adapter");
258 		break;
259 	case PCI_QLOGIC_ISP2722:
260 		device_set_desc(dev, "Qlogic ISP 2722 PCI FC Adapter");
261 		break;
262 	case PCI_QLOGIC_ISP2812:
263 		device_set_desc(dev, "Qlogic ISP 2812 PCI FC Adapter");
264 		break;
265 	case PCI_QLOGIC_ISP2814:
266 		device_set_desc(dev, "Qlogic ISP 2814 PCI FC Adapter");
267 		break;
268 	default:
269 		return (ENXIO);
270 	}
271 	if (isp_announced == 0 && bootverbose) {
272 		printf("Qlogic ISP Driver, FreeBSD Version %d.%d, "
273 		    "Core Version %d.%d\n",
274 		    ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
275 		    ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
276 		isp_announced++;
277 	}
278 	/*
279 	 * XXXX: Here is where we might load the f/w module
280 	 * XXXX: (or increase a reference count to it).
281 	 */
282 	return (BUS_PROBE_DEFAULT);
283 }
284 
285 static void
286 isp_get_generic_options(device_t dev, ispsoftc_t *isp)
287 {
288 	int tval;
289 
290 	tval = 0;
291 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "fwload_disable", &tval) == 0 && tval != 0) {
292 		isp->isp_confopts |= ISP_CFG_NORELOAD;
293 	}
294 	tval = 0;
295 	if (resource_int_value(device_get_name(dev), device_get_unit(dev), "ignore_nvram", &tval) == 0 && tval != 0) {
296 		isp->isp_confopts |= ISP_CFG_NONVRAM;
297 	}
298 	tval = 0;
299 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "debug", &tval);
300 	if (tval) {
301 		isp->isp_dblev = tval;
302 	} else {
303 		isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
304 	}
305 	if (bootverbose) {
306 		isp->isp_dblev |= ISP_LOGCONFIG|ISP_LOGINFO;
307 	}
308 	tval = -1;
309 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "vports", &tval);
310 	if (tval > 0 && tval <= 254) {
311 		isp_nvports = tval;
312 	}
313 	tval = 7;
314 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev), "quickboot_time", &tval);
315 	isp_quickboot_time = tval;
316 }
317 
318 static void
319 isp_get_specific_options(device_t dev, int chan, ispsoftc_t *isp)
320 {
321 	const char *sptr;
322 	int tval = 0;
323 	char prefix[12], name[16];
324 
325 	if (chan == 0)
326 		prefix[0] = 0;
327 	else
328 		snprintf(prefix, sizeof(prefix), "chan%d.", chan);
329 	snprintf(name, sizeof(name), "%siid", prefix);
330 	if (resource_int_value(device_get_name(dev), device_get_unit(dev),
331 	    name, &tval)) {
332 		ISP_FC_PC(isp, chan)->default_id = 109 - chan;
333 	} else {
334 		ISP_FC_PC(isp, chan)->default_id = tval - chan;
335 		isp->isp_confopts |= ISP_CFG_OWNLOOPID;
336 	}
337 
338 	tval = -1;
339 	snprintf(name, sizeof(name), "%srole", prefix);
340 	if (resource_int_value(device_get_name(dev), device_get_unit(dev),
341 	    name, &tval) == 0) {
342 		switch (tval) {
343 		case ISP_ROLE_NONE:
344 		case ISP_ROLE_INITIATOR:
345 		case ISP_ROLE_TARGET:
346 		case ISP_ROLE_BOTH:
347 			device_printf(dev, "Chan %d setting role to 0x%x\n", chan, tval);
348 			break;
349 		default:
350 			tval = -1;
351 			break;
352 		}
353 	}
354 	if (tval == -1) {
355 		tval = ISP_DEFAULT_ROLES;
356 	}
357 	ISP_FC_PC(isp, chan)->def_role = tval;
358 
359 	tval = 0;
360 	snprintf(name, sizeof(name), "%sfullduplex", prefix);
361 	if (resource_int_value(device_get_name(dev), device_get_unit(dev),
362 	    name, &tval) == 0 && tval != 0) {
363 		isp->isp_confopts |= ISP_CFG_FULL_DUPLEX;
364 	}
365 	sptr = NULL;
366 	snprintf(name, sizeof(name), "%stopology", prefix);
367 	if (resource_string_value(device_get_name(dev), device_get_unit(dev),
368 	    name, (const char **) &sptr) == 0 && sptr != NULL) {
369 		if (strcmp(sptr, "lport") == 0) {
370 			isp->isp_confopts |= ISP_CFG_LPORT;
371 		} else if (strcmp(sptr, "nport") == 0) {
372 			isp->isp_confopts |= ISP_CFG_NPORT;
373 		} else if (strcmp(sptr, "lport-only") == 0) {
374 			isp->isp_confopts |= ISP_CFG_LPORT_ONLY;
375 		} else if (strcmp(sptr, "nport-only") == 0) {
376 			isp->isp_confopts |= ISP_CFG_NPORT_ONLY;
377 		}
378 	}
379 
380 #ifdef ISP_FCTAPE_OFF
381 	isp->isp_confopts |= ISP_CFG_NOFCTAPE;
382 #else
383 	isp->isp_confopts |= ISP_CFG_FCTAPE;
384 #endif
385 
386 	tval = 0;
387 	snprintf(name, sizeof(name), "%snofctape", prefix);
388 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
389 	    name, &tval);
390 	if (tval) {
391 		isp->isp_confopts &= ~ISP_CFG_FCTAPE;
392 		isp->isp_confopts |= ISP_CFG_NOFCTAPE;
393 	}
394 
395 	tval = 0;
396 	snprintf(name, sizeof(name), "%sfctape", prefix);
397 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
398 	    name, &tval);
399 	if (tval) {
400 		isp->isp_confopts &= ~ISP_CFG_NOFCTAPE;
401 		isp->isp_confopts |= ISP_CFG_FCTAPE;
402 	}
403 
404 
405 	/*
406 	 * Because the resource_*_value functions can neither return
407 	 * 64 bit integer values, nor can they be directly coerced
408 	 * to interpret the right hand side of the assignment as
409 	 * you want them to interpret it, we have to force WWN
410 	 * hint replacement to specify WWN strings with a leading
411 	 * 'w' (e..g w50000000aaaa0001). Sigh.
412 	 */
413 	sptr = NULL;
414 	snprintf(name, sizeof(name), "%sportwwn", prefix);
415 	tval = resource_string_value(device_get_name(dev), device_get_unit(dev),
416 	    name, (const char **) &sptr);
417 	if (tval == 0 && sptr != NULL && *sptr++ == 'w') {
418 		char *eptr = NULL;
419 		ISP_FC_PC(isp, chan)->def_wwpn = strtouq(sptr, &eptr, 16);
420 		if (eptr < sptr + 16 || ISP_FC_PC(isp, chan)->def_wwpn == -1) {
421 			device_printf(dev, "mangled portwwn hint '%s'\n", sptr);
422 			ISP_FC_PC(isp, chan)->def_wwpn = 0;
423 		}
424 	}
425 
426 	sptr = NULL;
427 	snprintf(name, sizeof(name), "%snodewwn", prefix);
428 	tval = resource_string_value(device_get_name(dev), device_get_unit(dev),
429 	    name, (const char **) &sptr);
430 	if (tval == 0 && sptr != NULL && *sptr++ == 'w') {
431 		char *eptr = NULL;
432 		ISP_FC_PC(isp, chan)->def_wwnn = strtouq(sptr, &eptr, 16);
433 		if (eptr < sptr + 16 || ISP_FC_PC(isp, chan)->def_wwnn == 0) {
434 			device_printf(dev, "mangled nodewwn hint '%s'\n", sptr);
435 			ISP_FC_PC(isp, chan)->def_wwnn = 0;
436 		}
437 	}
438 
439 	tval = -1;
440 	snprintf(name, sizeof(name), "%sloop_down_limit", prefix);
441 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
442 	    name, &tval);
443 	if (tval >= 0 && tval < 0xffff) {
444 		ISP_FC_PC(isp, chan)->loop_down_limit = tval;
445 	} else {
446 		ISP_FC_PC(isp, chan)->loop_down_limit = isp_loop_down_limit;
447 	}
448 
449 	tval = -1;
450 	snprintf(name, sizeof(name), "%sgone_device_time", prefix);
451 	(void) resource_int_value(device_get_name(dev), device_get_unit(dev),
452 	    name, &tval);
453 	if (tval >= 0 && tval < 0xffff) {
454 		ISP_FC_PC(isp, chan)->gone_device_time = tval;
455 	} else {
456 		ISP_FC_PC(isp, chan)->gone_device_time = isp_gone_device_time;
457 	}
458 }
459 
460 static int
461 isp_pci_attach(device_t dev)
462 {
463 	struct isp_pcisoftc *pcs = device_get_softc(dev);
464 	ispsoftc_t *isp = &pcs->pci_isp;
465 	int i;
466 	uint32_t data, cmd, linesz, did;
467 	size_t psize, xsize;
468 	char fwname[32];
469 
470 	isp->isp_dev = dev;
471 	isp->isp_nchan = 1;
472 	mtx_init(&isp->isp_lock, "isp", NULL, MTX_DEF);
473 
474 	/*
475 	 * Get Generic Options
476 	 */
477 	isp_nvports = 0;
478 	isp_get_generic_options(dev, isp);
479 
480 	linesz = PCI_DFLT_LNSZ;
481 	pcs->regs = pcs->regs2 = NULL;
482 	pcs->rgd = pcs->rtp = 0;
483 
484 	isp->isp_nchan += isp_nvports;
485 	switch (pci_get_devid(dev)) {
486 	case PCI_QLOGIC_ISP2422:
487 	case PCI_QLOGIC_ISP2432:
488 		did = 0x2400;
489 		isp->isp_mdvec = &mdvec_2400;
490 		isp->isp_type = ISP_HA_FC_2400;
491 		break;
492 	case PCI_QLOGIC_ISP2532:
493 		did = 0x2500;
494 		isp->isp_mdvec = &mdvec_2500;
495 		isp->isp_type = ISP_HA_FC_2500;
496 		break;
497 	case PCI_QLOGIC_ISP5432:
498 		did = 0x2500;
499 		isp->isp_mdvec = &mdvec_2500;
500 		isp->isp_type = ISP_HA_FC_2500;
501 		break;
502 	case PCI_QLOGIC_ISP2031:
503 	case PCI_QLOGIC_ISP8031:
504 		did = 0x2600;
505 		isp->isp_mdvec = &mdvec_2600;
506 		isp->isp_type = ISP_HA_FC_2600;
507 		break;
508 	case PCI_QLOGIC_ISP2684:
509 	case PCI_QLOGIC_ISP2692:
510 	case PCI_QLOGIC_ISP2714:
511 	case PCI_QLOGIC_ISP2722:
512 		did = 0x2700;
513 		isp->isp_mdvec = &mdvec_2700;
514 		isp->isp_type = ISP_HA_FC_2700;
515 		break;
516 	case PCI_QLOGIC_ISP2812:
517 	case PCI_QLOGIC_ISP2814:
518 		did = 0x2800;
519 		isp->isp_mdvec = &mdvec_2800;
520 		isp->isp_type = ISP_HA_FC_2800;
521 		break;
522 	default:
523 		device_printf(dev, "unknown device type\n");
524 		goto bad;
525 		break;
526 	}
527 	isp->isp_revision = pci_get_revid(dev);
528 
529 	if (IS_26XX(isp)) {
530 		pcs->rtp = SYS_RES_MEMORY;
531 		pcs->rgd = PCIR_BAR(0);
532 		pcs->regs = bus_alloc_resource_any(dev, pcs->rtp, &pcs->rgd,
533 		    RF_ACTIVE);
534 		pcs->rtp1 = SYS_RES_MEMORY;
535 		pcs->rgd1 = PCIR_BAR(2);
536 		pcs->regs1 = bus_alloc_resource_any(dev, pcs->rtp1, &pcs->rgd1,
537 		    RF_ACTIVE);
538 		pcs->rtp2 = SYS_RES_MEMORY;
539 		pcs->rgd2 = PCIR_BAR(4);
540 		pcs->regs2 = bus_alloc_resource_any(dev, pcs->rtp2, &pcs->rgd2,
541 		    RF_ACTIVE);
542 	} else {
543 		pcs->rtp = SYS_RES_MEMORY;
544 		pcs->rgd = PCIR_BAR(1);
545 		pcs->regs = bus_alloc_resource_any(dev, pcs->rtp, &pcs->rgd,
546 		    RF_ACTIVE);
547 		if (pcs->regs == NULL) {
548 			pcs->rtp = SYS_RES_IOPORT;
549 			pcs->rgd = PCIR_BAR(0);
550 			pcs->regs = bus_alloc_resource_any(dev, pcs->rtp,
551 			    &pcs->rgd, RF_ACTIVE);
552 		}
553 	}
554 	if (pcs->regs == NULL) {
555 		device_printf(dev, "Unable to map any ports\n");
556 		goto bad;
557 	}
558 	if (bootverbose) {
559 		device_printf(dev, "Using %s space register mapping\n",
560 		    (pcs->rtp == SYS_RES_IOPORT)? "I/O" : "Memory");
561 	}
562 	isp->isp_regs = pcs->regs;
563 	isp->isp_regs2 = pcs->regs2;
564 
565 	psize = sizeof(fcparam) * isp->isp_nchan;
566 	xsize = sizeof(struct isp_fc) * isp->isp_nchan;
567 	isp->isp_param = malloc(psize, M_DEVBUF, M_NOWAIT | M_ZERO);
568 	if (isp->isp_param == NULL) {
569 		device_printf(dev, "cannot allocate parameter data\n");
570 		goto bad;
571 	}
572 	isp->isp_osinfo.fc = malloc(xsize, M_DEVBUF, M_NOWAIT | M_ZERO);
573 	if (isp->isp_osinfo.fc == NULL) {
574 		device_printf(dev, "cannot allocate parameter data\n");
575 		goto bad;
576 	}
577 
578 	/*
579 	 * Now that we know who we are (roughly) get/set specific options
580 	 */
581 	for (i = 0; i < isp->isp_nchan; i++) {
582 		isp_get_specific_options(dev, i, isp);
583 	}
584 
585 	isp->isp_osinfo.fw = NULL;
586 	if (isp->isp_osinfo.fw == NULL) {
587 		snprintf(fwname, sizeof (fwname), "isp_%04x", did);
588 		isp->isp_osinfo.fw = firmware_get(fwname);
589 	}
590 	if (isp->isp_osinfo.fw != NULL) {
591 		isp_prt(isp, ISP_LOGCONFIG, "loaded firmware %s", fwname);
592 		isp->isp_mdvec->dv_ispfw = isp->isp_osinfo.fw->data;
593 	}
594 
595 	/*
596 	 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
597 	 */
598 	cmd = pci_read_config(dev, PCIR_COMMAND, 2);
599 	cmd |= PCIM_CMD_SEREN | PCIM_CMD_PERRESPEN | PCIM_CMD_BUSMASTEREN | PCIM_CMD_INVEN;
600 	cmd &= ~PCIM_CMD_INTX_DISABLE;
601 	pci_write_config(dev, PCIR_COMMAND, cmd, 2);
602 
603 	/*
604 	 * Make sure the Cache Line Size register is set sensibly.
605 	 */
606 	data = pci_read_config(dev, PCIR_CACHELNSZ, 1);
607 	if (data == 0 || (linesz != PCI_DFLT_LNSZ && data != linesz)) {
608 		isp_prt(isp, ISP_LOGDEBUG0, "set PCI line size to %d from %d", linesz, data);
609 		data = linesz;
610 		pci_write_config(dev, PCIR_CACHELNSZ, data, 1);
611 	}
612 
613 	/*
614 	 * Make sure the Latency Timer is sane.
615 	 */
616 	data = pci_read_config(dev, PCIR_LATTIMER, 1);
617 	if (data < PCI_DFLT_LTNCY) {
618 		data = PCI_DFLT_LTNCY;
619 		isp_prt(isp, ISP_LOGDEBUG0, "set PCI latency to %d", data);
620 		pci_write_config(dev, PCIR_LATTIMER, data, 1);
621 	}
622 
623 	/*
624 	 * Make sure we've disabled the ROM.
625 	 */
626 	data = pci_read_config(dev, PCIR_ROMADDR, 4);
627 	data &= ~1;
628 	pci_write_config(dev, PCIR_ROMADDR, data, 4);
629 
630 	/*
631 	 * Last minute checks...
632 	 */
633 	isp->isp_port = pci_get_function(dev);
634 
635 	/*
636 	 * Make sure we're in reset state.
637 	 */
638 	ISP_LOCK(isp);
639 	if (isp_reinit(isp, 1) != 0) {
640 		ISP_UNLOCK(isp);
641 		goto bad;
642 	}
643 	ISP_UNLOCK(isp);
644 	if (isp_attach(isp)) {
645 		ISP_LOCK(isp);
646 		isp_shutdown(isp);
647 		ISP_UNLOCK(isp);
648 		goto bad;
649 	}
650 	return (0);
651 
652 bad:
653 	if (isp->isp_osinfo.fw == NULL && !IS_26XX(isp)) {
654 		/*
655 		 * Failure to attach at boot time might have been caused
656 		 * by a missing ispfw(4).  Except for 16Gb adapters,
657 		 * there's no loadable firmware for them.
658 		 */
659 		isp_prt(isp, ISP_LOGWARN, "See the ispfw(4) man page on "
660 		    "how to load known good firmware at boot time");
661 	}
662 	for (i = 0; i < isp->isp_nirq; i++) {
663 		(void) bus_teardown_intr(dev, pcs->irq[i].irq, pcs->irq[i].ih);
664 		(void) bus_release_resource(dev, SYS_RES_IRQ, pcs->irq[i].iqd,
665 		    pcs->irq[0].irq);
666 	}
667 	if (pcs->msicount) {
668 		pci_release_msi(dev);
669 	}
670 	if (pcs->regs)
671 		(void) bus_release_resource(dev, pcs->rtp, pcs->rgd, pcs->regs);
672 	if (pcs->regs1)
673 		(void) bus_release_resource(dev, pcs->rtp1, pcs->rgd1, pcs->regs1);
674 	if (pcs->regs2)
675 		(void) bus_release_resource(dev, pcs->rtp2, pcs->rgd2, pcs->regs2);
676 	if (pcs->pci_isp.isp_param) {
677 		free(pcs->pci_isp.isp_param, M_DEVBUF);
678 		pcs->pci_isp.isp_param = NULL;
679 	}
680 	if (pcs->pci_isp.isp_osinfo.fc) {
681 		free(pcs->pci_isp.isp_osinfo.fc, M_DEVBUF);
682 		pcs->pci_isp.isp_osinfo.fc = NULL;
683 	}
684 	mtx_destroy(&isp->isp_lock);
685 	return (ENXIO);
686 }
687 
688 static int
689 isp_pci_detach(device_t dev)
690 {
691 	struct isp_pcisoftc *pcs = device_get_softc(dev);
692 	ispsoftc_t *isp = &pcs->pci_isp;
693 	int i, status;
694 
695 	status = isp_detach(isp);
696 	if (status)
697 		return (status);
698 	ISP_LOCK(isp);
699 	isp_shutdown(isp);
700 	ISP_UNLOCK(isp);
701 	for (i = 0; i < isp->isp_nirq; i++) {
702 		(void) bus_teardown_intr(dev, pcs->irq[i].irq, pcs->irq[i].ih);
703 		(void) bus_release_resource(dev, SYS_RES_IRQ, pcs->irq[i].iqd,
704 		    pcs->irq[i].irq);
705 	}
706 	if (pcs->msicount)
707 		pci_release_msi(dev);
708 	(void) bus_release_resource(dev, pcs->rtp, pcs->rgd, pcs->regs);
709 	if (pcs->regs1)
710 		(void) bus_release_resource(dev, pcs->rtp1, pcs->rgd1, pcs->regs1);
711 	if (pcs->regs2)
712 		(void) bus_release_resource(dev, pcs->rtp2, pcs->rgd2, pcs->regs2);
713 	isp_pci_mbxdmafree(isp);
714 	if (pcs->pci_isp.isp_param) {
715 		free(pcs->pci_isp.isp_param, M_DEVBUF);
716 		pcs->pci_isp.isp_param = NULL;
717 	}
718 	if (pcs->pci_isp.isp_osinfo.fc) {
719 		free(pcs->pci_isp.isp_osinfo.fc, M_DEVBUF);
720 		pcs->pci_isp.isp_osinfo.fc = NULL;
721 	}
722 	mtx_destroy(&isp->isp_lock);
723 	return (0);
724 }
725 
726 #define	BXR2(isp, off)		bus_read_2((isp)->isp_regs, (off))
727 #define	BXW2(isp, off, v)	bus_write_2((isp)->isp_regs, (off), (v))
728 #define	BXR4(isp, off)		bus_read_4((isp)->isp_regs, (off))
729 #define	BXW4(isp, off, v)	bus_write_4((isp)->isp_regs, (off), (v))
730 #define	B2R4(isp, off)		bus_read_4((isp)->isp_regs2, (off))
731 #define	B2W4(isp, off, v)	bus_write_4((isp)->isp_regs2, (off), (v))
732 
733 static void
734 isp_pci_run_isr_2400(ispsoftc_t *isp)
735 {
736 	uint32_t r2hisr;
737 	uint16_t isr, info;
738 
739 	r2hisr = BXR4(isp, BIU2400_R2HSTS);
740 	isp_prt(isp, ISP_LOGDEBUG3, "RISC2HOST ISR 0x%x", r2hisr);
741 	if ((r2hisr & BIU_R2HST_INTR) == 0)
742 		return;
743 	isr = r2hisr & BIU_R2HST_ISTAT_MASK;
744 	info = (r2hisr >> 16);
745 	switch (isr) {
746 	case ISPR2HST_ROM_MBX_OK:
747 	case ISPR2HST_ROM_MBX_FAIL:
748 	case ISPR2HST_MBX_OK:
749 	case ISPR2HST_MBX_FAIL:
750 		isp_intr_mbox(isp, info);
751 		break;
752 	case ISPR2HST_ASYNC_EVENT:
753 		isp_intr_async(isp, info);
754 		break;
755 	case ISPR2HST_RSPQ_UPDATE:
756 		isp_intr_respq(isp);
757 		break;
758 	case ISPR2HST_RSPQ_UPDATE2:
759 #ifdef	ISP_TARGET_MODE
760 	case ISPR2HST_ATIO_RSPQ_UPDATE:
761 #endif
762 		isp_intr_respq(isp);
763 		/* FALLTHROUGH */
764 #ifdef	ISP_TARGET_MODE
765 	case ISPR2HST_ATIO_UPDATE:
766 	case ISPR2HST_ATIO_UPDATE2:
767 		isp_intr_atioq(isp);
768 #endif
769 		break;
770 	default:
771 		isp_prt(isp, ISP_LOGERR, "unknown interrupt 0x%x\n", r2hisr);
772 	}
773 	ISP_WRITE(isp, BIU2400_HCCR, HCCR_2400_CMD_CLEAR_RISC_INT);
774 }
775 
776 static uint32_t
777 isp_pci_rd_reg_2400(ispsoftc_t *isp, int regoff)
778 {
779 	int block = regoff & _BLK_REG_MASK;
780 
781 	switch (block) {
782 	case BIU_BLOCK:
783 		return (BXR4(isp, regoff));
784 	case MBOX_BLOCK:
785 		return (BXR2(isp, regoff));
786 	}
787 	isp_prt(isp, ISP_LOGERR, "unknown block read at 0x%x", regoff);
788 	return (0xffffffff);
789 }
790 
791 static void
792 isp_pci_wr_reg_2400(ispsoftc_t *isp, int regoff, uint32_t val)
793 {
794 	int block = regoff & _BLK_REG_MASK;
795 
796 	switch (block) {
797 	case BIU_BLOCK:
798 		BXW4(isp, regoff, val);
799 #ifdef MEMORYBARRIERW
800 		if (regoff == BIU2400_REQINP ||
801 		    regoff == BIU2400_RSPOUTP ||
802 		    regoff == BIU2400_PRI_REQINP ||
803 		    regoff == BIU2400_ATIO_RSPOUTP)
804 			MEMORYBARRIERW(isp, SYNC_REG, regoff, 4, -1)
805 		else
806 #endif
807 		MEMORYBARRIER(isp, SYNC_REG, regoff, 4, -1);
808 		return;
809 	case MBOX_BLOCK:
810 		BXW2(isp, regoff, val);
811 		MEMORYBARRIER(isp, SYNC_REG, regoff, 2, -1);
812 		return;
813 	}
814 	isp_prt(isp, ISP_LOGERR, "unknown block write at 0x%x", regoff);
815 }
816 
817 static uint32_t
818 isp_pci_rd_reg_2600(ispsoftc_t *isp, int regoff)
819 {
820 	uint32_t rv;
821 
822 	switch (regoff) {
823 	case BIU2400_PRI_REQINP:
824 	case BIU2400_PRI_REQOUTP:
825 		isp_prt(isp, ISP_LOGERR, "unknown register read at 0x%x",
826 		    regoff);
827 		rv = 0xffffffff;
828 		break;
829 	case BIU2400_REQINP:
830 		rv = B2R4(isp, 0x00);
831 		break;
832 	case BIU2400_REQOUTP:
833 		rv = B2R4(isp, 0x04);
834 		break;
835 	case BIU2400_RSPINP:
836 		rv = B2R4(isp, 0x08);
837 		break;
838 	case BIU2400_RSPOUTP:
839 		rv = B2R4(isp, 0x0c);
840 		break;
841 	case BIU2400_ATIO_RSPINP:
842 		rv = B2R4(isp, 0x10);
843 		break;
844 	case BIU2400_ATIO_RSPOUTP:
845 		rv = B2R4(isp, 0x14);
846 		break;
847 	default:
848 		rv = isp_pci_rd_reg_2400(isp, regoff);
849 		break;
850 	}
851 	return (rv);
852 }
853 
854 static void
855 isp_pci_wr_reg_2600(ispsoftc_t *isp, int regoff, uint32_t val)
856 {
857 	int off;
858 
859 	switch (regoff) {
860 	case BIU2400_PRI_REQINP:
861 	case BIU2400_PRI_REQOUTP:
862 		isp_prt(isp, ISP_LOGERR, "unknown register write at 0x%x",
863 		    regoff);
864 		return;
865 	case BIU2400_REQINP:
866 		off = 0x00;
867 		break;
868 	case BIU2400_REQOUTP:
869 		off = 0x04;
870 		break;
871 	case BIU2400_RSPINP:
872 		off = 0x08;
873 		break;
874 	case BIU2400_RSPOUTP:
875 		off = 0x0c;
876 		break;
877 	case BIU2400_ATIO_RSPINP:
878 		off = 0x10;
879 		break;
880 	case BIU2400_ATIO_RSPOUTP:
881 		off = 0x14;
882 		break;
883 	default:
884 		isp_pci_wr_reg_2400(isp, regoff, val);
885 		return;
886 	}
887 	B2W4(isp, off, val);
888 }
889 
890 
891 struct imush {
892 	bus_addr_t maddr;
893 	int error;
894 };
895 
896 static void
897 imc(void *arg, bus_dma_segment_t *segs, int nseg, int error)
898 {
899 	struct imush *imushp = (struct imush *) arg;
900 
901 	if (!(imushp->error = error))
902 		imushp->maddr = segs[0].ds_addr;
903 }
904 
905 static int
906 isp_pci_mbxdma(ispsoftc_t *isp)
907 {
908 	bus_dma_tag_t ptag;
909 	caddr_t base;
910 	uint32_t len;
911 	int i, error, cmap;
912 	bus_size_t slim;	/* segment size */
913 	struct imush im;
914 #ifdef	ISP_TARGET_MODE
915 	isp_ecmd_t *ecmd;
916 #endif
917 
918 	/* Already been here? If so, leave... */
919 	if (isp->isp_xflist != NULL)
920 		return (0);
921 	if (isp->isp_rquest != NULL && isp->isp_maxcmds == 0)
922 		return (0);
923 	ISP_UNLOCK(isp);
924 
925 	ptag = bus_get_dma_tag(isp->isp_osinfo.dev);
926 	if (sizeof (bus_size_t) > 4)
927 		slim = (bus_size_t) (1ULL << 32);
928 	else
929 		slim = (bus_size_t) (1UL << 31);
930 
931 	if (isp->isp_rquest != NULL)
932 		goto gotmaxcmds;
933 
934 	/*
935 	 * Allocate and map the request queue.
936 	 */
937 	len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
938 	if (bus_dma_tag_create(ptag, QENTRY_LEN, slim,
939 	    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
940 	    len, 1, len, 0, NULL, NULL, &isp->isp_osinfo.reqdmat)) {
941 		isp_prt(isp, ISP_LOGERR, "cannot create request DMA tag");
942 		goto bad;
943 	}
944 	if (bus_dmamem_alloc(isp->isp_osinfo.reqdmat, (void **)&base,
945 	    BUS_DMA_COHERENT, &isp->isp_osinfo.reqmap) != 0) {
946 		isp_prt(isp, ISP_LOGERR, "cannot allocate request DMA memory");
947 		bus_dma_tag_destroy(isp->isp_osinfo.reqdmat);
948 		goto bad;
949 	}
950 	isp->isp_rquest = base;
951 	im.error = 0;
952 	if (bus_dmamap_load(isp->isp_osinfo.reqdmat, isp->isp_osinfo.reqmap,
953 	    base, len, imc, &im, BUS_DMA_NOWAIT) || im.error) {
954 		isp_prt(isp, ISP_LOGERR, "error loading request DMA map %d", im.error);
955 		goto bad;
956 	}
957 	isp_prt(isp, ISP_LOGDEBUG0, "request area @ 0x%jx/0x%jx",
958 	    (uintmax_t)im.maddr, (uintmax_t)len);
959 	isp->isp_rquest_dma = im.maddr;
960 
961 #ifdef	ISP_TARGET_MODE
962 	/*
963 	 * Allocate region for external DMA addressable command/status structures.
964 	 */
965 	len = N_XCMDS * XCMD_SIZE;
966 	if (bus_dma_tag_create(ptag, XCMD_SIZE, slim,
967 	    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
968 	    len, 1, len, 0, NULL, NULL, &isp->isp_osinfo.ecmd_dmat)) {
969 		isp_prt(isp, ISP_LOGERR, "cannot create ECMD DMA tag");
970 		goto bad;
971 	}
972 	if (bus_dmamem_alloc(isp->isp_osinfo.ecmd_dmat, (void **)&base,
973 	    BUS_DMA_COHERENT, &isp->isp_osinfo.ecmd_map) != 0) {
974 		isp_prt(isp, ISP_LOGERR, "cannot allocate ECMD DMA memory");
975 		bus_dma_tag_destroy(isp->isp_osinfo.ecmd_dmat);
976 		goto bad;
977 	}
978 	isp->isp_osinfo.ecmd_base = (isp_ecmd_t *)base;
979 	im.error = 0;
980 	if (bus_dmamap_load(isp->isp_osinfo.ecmd_dmat, isp->isp_osinfo.ecmd_map,
981 	    base, len, imc, &im, BUS_DMA_NOWAIT) || im.error) {
982 		isp_prt(isp, ISP_LOGERR, "error loading ECMD DMA map %d", im.error);
983 		goto bad;
984 	}
985 	isp_prt(isp, ISP_LOGDEBUG0, "ecmd area @ 0x%jx/0x%jx",
986 	    (uintmax_t)im.maddr, (uintmax_t)len);
987 
988 	isp->isp_osinfo.ecmd_dma = im.maddr;
989 	isp->isp_osinfo.ecmd_free = (isp_ecmd_t *)base;
990 	for (ecmd = isp->isp_osinfo.ecmd_free;
991 	    ecmd < &isp->isp_osinfo.ecmd_free[N_XCMDS]; ecmd++) {
992 		if (ecmd == &isp->isp_osinfo.ecmd_free[N_XCMDS - 1])
993 			ecmd->next = NULL;
994 		else
995 			ecmd->next = ecmd + 1;
996 	}
997 #endif
998 
999 	/*
1000 	 * Allocate and map the result queue.
1001 	 */
1002 	len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
1003 	if (bus_dma_tag_create(ptag, QENTRY_LEN, slim,
1004 	    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
1005 	    len, 1, len, 0, NULL, NULL, &isp->isp_osinfo.respdmat)) {
1006 		isp_prt(isp, ISP_LOGERR, "cannot create response DMA tag");
1007 		goto bad;
1008 	}
1009 	if (bus_dmamem_alloc(isp->isp_osinfo.respdmat, (void **)&base,
1010 	    BUS_DMA_COHERENT, &isp->isp_osinfo.respmap) != 0) {
1011 		isp_prt(isp, ISP_LOGERR, "cannot allocate response DMA memory");
1012 		bus_dma_tag_destroy(isp->isp_osinfo.respdmat);
1013 		goto bad;
1014 	}
1015 	isp->isp_result = base;
1016 	im.error = 0;
1017 	if (bus_dmamap_load(isp->isp_osinfo.respdmat, isp->isp_osinfo.respmap,
1018 	    base, len, imc, &im, BUS_DMA_NOWAIT) || im.error) {
1019 		isp_prt(isp, ISP_LOGERR, "error loading response DMA map %d", im.error);
1020 		goto bad;
1021 	}
1022 	isp_prt(isp, ISP_LOGDEBUG0, "response area @ 0x%jx/0x%jx",
1023 	    (uintmax_t)im.maddr, (uintmax_t)len);
1024 	isp->isp_result_dma = im.maddr;
1025 
1026 #ifdef	ISP_TARGET_MODE
1027 	/*
1028 	 * Allocate and map ATIO queue.
1029 	 */
1030 	len = ISP_QUEUE_SIZE(ATIO_QUEUE_LEN(isp));
1031 	if (bus_dma_tag_create(ptag, QENTRY_LEN, slim,
1032 	    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
1033 	    len, 1, len, 0, NULL, NULL, &isp->isp_osinfo.atiodmat)) {
1034 		isp_prt(isp, ISP_LOGERR, "cannot create ATIO DMA tag");
1035 		goto bad;
1036 	}
1037 	if (bus_dmamem_alloc(isp->isp_osinfo.atiodmat, (void **)&base,
1038 	    BUS_DMA_COHERENT, &isp->isp_osinfo.atiomap) != 0) {
1039 		isp_prt(isp, ISP_LOGERR, "cannot allocate ATIO DMA memory");
1040 		bus_dma_tag_destroy(isp->isp_osinfo.atiodmat);
1041 		goto bad;
1042 	}
1043 	isp->isp_atioq = base;
1044 	im.error = 0;
1045 	if (bus_dmamap_load(isp->isp_osinfo.atiodmat, isp->isp_osinfo.atiomap,
1046 	    base, len, imc, &im, BUS_DMA_NOWAIT) || im.error) {
1047 		isp_prt(isp, ISP_LOGERR, "error loading ATIO DMA map %d", im.error);
1048 		goto bad;
1049 	}
1050 	isp_prt(isp, ISP_LOGDEBUG0, "ATIO area @ 0x%jx/0x%jx",
1051 	    (uintmax_t)im.maddr, (uintmax_t)len);
1052 	isp->isp_atioq_dma = im.maddr;
1053 #endif
1054 
1055 	if (bus_dma_tag_create(ptag, 64, slim,
1056 	    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
1057 	    2*QENTRY_LEN, 1, 2*QENTRY_LEN, 0, NULL, NULL,
1058 	    &isp->isp_osinfo.iocbdmat)) {
1059 		goto bad;
1060 	}
1061 	if (bus_dmamem_alloc(isp->isp_osinfo.iocbdmat,
1062 	    (void **)&base, BUS_DMA_COHERENT, &isp->isp_osinfo.iocbmap) != 0)
1063 		goto bad;
1064 	isp->isp_iocb = base;
1065 	im.error = 0;
1066 	if (bus_dmamap_load(isp->isp_osinfo.iocbdmat, isp->isp_osinfo.iocbmap,
1067 	    base, 2*QENTRY_LEN, imc, &im, BUS_DMA_NOWAIT) || im.error)
1068 		goto bad;
1069 	isp->isp_iocb_dma = im.maddr;
1070 
1071 	if (bus_dma_tag_create(ptag, 64, slim,
1072 	    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
1073 	    ISP_FC_SCRLEN, 1, ISP_FC_SCRLEN, 0, NULL, NULL,
1074 	    &isp->isp_osinfo.scdmat))
1075 		goto bad;
1076 	for (cmap = 0; cmap < isp->isp_nchan; cmap++) {
1077 		struct isp_fc *fc = ISP_FC_PC(isp, cmap);
1078 		if (bus_dmamem_alloc(isp->isp_osinfo.scdmat,
1079 		    (void **)&base, BUS_DMA_COHERENT, &fc->scmap) != 0)
1080 			goto bad;
1081 		FCPARAM(isp, cmap)->isp_scratch = base;
1082 		im.error = 0;
1083 		if (bus_dmamap_load(isp->isp_osinfo.scdmat, fc->scmap,
1084 		    base, ISP_FC_SCRLEN, imc, &im, BUS_DMA_NOWAIT) ||
1085 		    im.error) {
1086 			bus_dmamem_free(isp->isp_osinfo.scdmat,
1087 			    base, fc->scmap);
1088 			FCPARAM(isp, cmap)->isp_scratch = NULL;
1089 			goto bad;
1090 		}
1091 		FCPARAM(isp, cmap)->isp_scdma = im.maddr;
1092 		for (i = 0; i < INITIAL_NEXUS_COUNT; i++) {
1093 			struct isp_nexus *n = malloc(sizeof (struct isp_nexus), M_DEVBUF, M_NOWAIT | M_ZERO);
1094 			if (n == NULL) {
1095 				while (fc->nexus_free_list) {
1096 					n = fc->nexus_free_list;
1097 					fc->nexus_free_list = n->next;
1098 					free(n, M_DEVBUF);
1099 				}
1100 				goto bad;
1101 			}
1102 			n->next = fc->nexus_free_list;
1103 			fc->nexus_free_list = n;
1104 		}
1105 	}
1106 
1107 	if (isp->isp_maxcmds == 0) {
1108 		ISP_LOCK(isp);
1109 		return (0);
1110 	}
1111 
1112 gotmaxcmds:
1113 	if (bus_dma_tag_create(ptag, 1, slim,
1114 	    BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL,
1115 	    (ISP_NSEG64_MAX - 1) * PAGE_SIZE, ISP_NSEG64_MAX,
1116 	    (ISP_NSEG64_MAX - 1) * PAGE_SIZE, 0,
1117 	    busdma_lock_mutex, &isp->isp_lock, &isp->isp_osinfo.dmat))
1118 		goto bad;
1119 	len = isp->isp_maxcmds * sizeof (struct isp_pcmd);
1120 	isp->isp_osinfo.pcmd_pool = (struct isp_pcmd *)
1121 	    malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1122 	for (i = 0; i < isp->isp_maxcmds; i++) {
1123 		struct isp_pcmd *pcmd = &isp->isp_osinfo.pcmd_pool[i];
1124 		error = bus_dmamap_create(isp->isp_osinfo.dmat, 0, &pcmd->dmap);
1125 		if (error) {
1126 			isp_prt(isp, ISP_LOGERR, "error %d creating per-cmd DMA maps", error);
1127 			while (--i >= 0) {
1128 				bus_dmamap_destroy(isp->isp_osinfo.dmat,
1129 				    isp->isp_osinfo.pcmd_pool[i].dmap);
1130 			}
1131 			goto bad;
1132 		}
1133 		callout_init_mtx(&pcmd->wdog, &isp->isp_lock, 0);
1134 		if (i == isp->isp_maxcmds-1)
1135 			pcmd->next = NULL;
1136 		else
1137 			pcmd->next = &isp->isp_osinfo.pcmd_pool[i+1];
1138 	}
1139 	isp->isp_osinfo.pcmd_free = &isp->isp_osinfo.pcmd_pool[0];
1140 
1141 	len = sizeof(isp_hdl_t) * ISP_HANDLE_NUM(isp);
1142 	isp->isp_xflist = (isp_hdl_t *) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
1143 	for (len = 0; len < ISP_HANDLE_NUM(isp) - 1; len++)
1144 		isp->isp_xflist[len].cmd = &isp->isp_xflist[len+1];
1145 	isp->isp_xffree = isp->isp_xflist;
1146 
1147 	ISP_LOCK(isp);
1148 	return (0);
1149 
1150 bad:
1151 	isp_pci_mbxdmafree(isp);
1152 	ISP_LOCK(isp);
1153 	return (1);
1154 }
1155 
1156 static void
1157 isp_pci_mbxdmafree(ispsoftc_t *isp)
1158 {
1159 	int i;
1160 
1161 	if (isp->isp_xflist != NULL) {
1162 		free(isp->isp_xflist, M_DEVBUF);
1163 		isp->isp_xflist = NULL;
1164 	}
1165 	if (isp->isp_osinfo.pcmd_pool != NULL) {
1166 		for (i = 0; i < isp->isp_maxcmds; i++) {
1167 			bus_dmamap_destroy(isp->isp_osinfo.dmat,
1168 			    isp->isp_osinfo.pcmd_pool[i].dmap);
1169 		}
1170 		free(isp->isp_osinfo.pcmd_pool, M_DEVBUF);
1171 		isp->isp_osinfo.pcmd_pool = NULL;
1172 	}
1173 	if (isp->isp_osinfo.dmat) {
1174 		bus_dma_tag_destroy(isp->isp_osinfo.dmat);
1175 		isp->isp_osinfo.dmat = NULL;
1176 	}
1177 	for (i = 0; i < isp->isp_nchan; i++) {
1178 		struct isp_fc *fc = ISP_FC_PC(isp, i);
1179 		if (FCPARAM(isp, i)->isp_scdma != 0) {
1180 			bus_dmamap_unload(isp->isp_osinfo.scdmat,
1181 			    fc->scmap);
1182 			FCPARAM(isp, i)->isp_scdma = 0;
1183 		}
1184 		if (FCPARAM(isp, i)->isp_scratch != NULL) {
1185 			bus_dmamem_free(isp->isp_osinfo.scdmat,
1186 			    FCPARAM(isp, i)->isp_scratch, fc->scmap);
1187 			FCPARAM(isp, i)->isp_scratch = NULL;
1188 		}
1189 		while (fc->nexus_free_list) {
1190 			struct isp_nexus *n = fc->nexus_free_list;
1191 			fc->nexus_free_list = n->next;
1192 			free(n, M_DEVBUF);
1193 		}
1194 	}
1195 	if (isp->isp_osinfo.scdmat) {
1196 		bus_dma_tag_destroy(isp->isp_osinfo.scdmat);
1197 		isp->isp_osinfo.scdmat = NULL;
1198 	}
1199 	if (isp->isp_iocb_dma != 0) {
1200 		bus_dmamap_unload(isp->isp_osinfo.iocbdmat,
1201 		    isp->isp_osinfo.iocbmap);
1202 		isp->isp_iocb_dma = 0;
1203 	}
1204 	if (isp->isp_iocb != NULL) {
1205 		bus_dmamem_free(isp->isp_osinfo.iocbdmat,
1206 		    isp->isp_iocb, isp->isp_osinfo.iocbmap);
1207 		bus_dma_tag_destroy(isp->isp_osinfo.iocbdmat);
1208 	}
1209 #ifdef	ISP_TARGET_MODE
1210 	if (isp->isp_atioq_dma != 0) {
1211 		bus_dmamap_unload(isp->isp_osinfo.atiodmat,
1212 		    isp->isp_osinfo.atiomap);
1213 		isp->isp_atioq_dma = 0;
1214 	}
1215 	if (isp->isp_atioq != NULL) {
1216 		bus_dmamem_free(isp->isp_osinfo.atiodmat, isp->isp_atioq,
1217 		    isp->isp_osinfo.atiomap);
1218 		bus_dma_tag_destroy(isp->isp_osinfo.atiodmat);
1219 		isp->isp_atioq = NULL;
1220 	}
1221 #endif
1222 	if (isp->isp_result_dma != 0) {
1223 		bus_dmamap_unload(isp->isp_osinfo.respdmat,
1224 		    isp->isp_osinfo.respmap);
1225 		isp->isp_result_dma = 0;
1226 	}
1227 	if (isp->isp_result != NULL) {
1228 		bus_dmamem_free(isp->isp_osinfo.respdmat, isp->isp_result,
1229 		    isp->isp_osinfo.respmap);
1230 		bus_dma_tag_destroy(isp->isp_osinfo.respdmat);
1231 		isp->isp_result = NULL;
1232 	}
1233 #ifdef	ISP_TARGET_MODE
1234 	if (isp->isp_osinfo.ecmd_dma != 0) {
1235 		bus_dmamap_unload(isp->isp_osinfo.ecmd_dmat,
1236 		    isp->isp_osinfo.ecmd_map);
1237 		isp->isp_osinfo.ecmd_dma = 0;
1238 	}
1239 	if (isp->isp_osinfo.ecmd_base != NULL) {
1240 		bus_dmamem_free(isp->isp_osinfo.ecmd_dmat, isp->isp_osinfo.ecmd_base,
1241 		    isp->isp_osinfo.ecmd_map);
1242 		bus_dma_tag_destroy(isp->isp_osinfo.ecmd_dmat);
1243 		isp->isp_osinfo.ecmd_base = NULL;
1244 	}
1245 #endif
1246 	if (isp->isp_rquest_dma != 0) {
1247 		bus_dmamap_unload(isp->isp_osinfo.reqdmat,
1248 		    isp->isp_osinfo.reqmap);
1249 		isp->isp_rquest_dma = 0;
1250 	}
1251 	if (isp->isp_rquest != NULL) {
1252 		bus_dmamem_free(isp->isp_osinfo.reqdmat, isp->isp_rquest,
1253 		    isp->isp_osinfo.reqmap);
1254 		bus_dma_tag_destroy(isp->isp_osinfo.reqdmat);
1255 		isp->isp_rquest = NULL;
1256 	}
1257 }
1258 
1259 static int
1260 isp_pci_irqsetup(ispsoftc_t *isp)
1261 {
1262 	device_t dev = isp->isp_osinfo.dev;
1263 	struct isp_pcisoftc *pcs = device_get_softc(dev);
1264 	driver_intr_t *f;
1265 	int i, max_irq;
1266 
1267 	/* Allocate IRQs only once. */
1268 	if (isp->isp_nirq > 0)
1269 		return (0);
1270 
1271 	ISP_UNLOCK(isp);
1272 	if (ISP_CAP_MSIX(isp)) {
1273 		max_irq = IS_26XX(isp) ? 3 : (IS_25XX(isp) ? 2 : 0);
1274 		resource_int_value(device_get_name(dev),
1275 		    device_get_unit(dev), "msix", &max_irq);
1276 		max_irq = imin(ISP_MAX_IRQS, max_irq);
1277 		pcs->msicount = imin(pci_msix_count(dev), max_irq);
1278 		if (pcs->msicount > 0 &&
1279 		    pci_alloc_msix(dev, &pcs->msicount) != 0)
1280 			pcs->msicount = 0;
1281 	}
1282 	if (pcs->msicount == 0) {
1283 		max_irq = 1;
1284 		resource_int_value(device_get_name(dev),
1285 		    device_get_unit(dev), "msi", &max_irq);
1286 		max_irq = imin(1, max_irq);
1287 		pcs->msicount = imin(pci_msi_count(dev), max_irq);
1288 		if (pcs->msicount > 0 &&
1289 		    pci_alloc_msi(dev, &pcs->msicount) != 0)
1290 			pcs->msicount = 0;
1291 	}
1292 	for (i = 0; i < MAX(1, pcs->msicount); i++) {
1293 		pcs->irq[i].iqd = i + (pcs->msicount > 0);
1294 		pcs->irq[i].irq = bus_alloc_resource_any(dev, SYS_RES_IRQ,
1295 		    &pcs->irq[i].iqd, RF_ACTIVE | RF_SHAREABLE);
1296 		if (pcs->irq[i].irq == NULL) {
1297 			device_printf(dev, "could not allocate interrupt\n");
1298 			break;
1299 		}
1300 		if (i == 0)
1301 			f = isp_platform_intr;
1302 		else if (i == 1)
1303 			f = isp_platform_intr_resp;
1304 		else
1305 			f = isp_platform_intr_atio;
1306 		if (bus_setup_intr(dev, pcs->irq[i].irq, ISP_IFLAGS, NULL,
1307 		    f, isp, &pcs->irq[i].ih)) {
1308 			device_printf(dev, "could not setup interrupt\n");
1309 			(void) bus_release_resource(dev, SYS_RES_IRQ,
1310 			    pcs->irq[i].iqd, pcs->irq[i].irq);
1311 			break;
1312 		}
1313 		if (pcs->msicount > 1) {
1314 			bus_describe_intr(dev, pcs->irq[i].irq, pcs->irq[i].ih,
1315 			    "%d", i);
1316 		}
1317 		isp->isp_nirq = i + 1;
1318 	}
1319 	ISP_LOCK(isp);
1320 
1321 	return (isp->isp_nirq == 0);
1322 }
1323