xref: /freebsd/sys/dev/isp/isp.c (revision a704009d8ae8531057cef91face602cab4d1941f)
1 /* $FreeBSD$ */
2 /*
3  * Machine and OS Independent (well, as best as possible)
4  * code for the Qlogic ISP SCSI adapters.
5  *
6  * Copyright (c) 1997, 1998, 1999 by Matthew Jacob
7  * NASA/Ames Research Center
8  * All rights reserved.
9  *
10  * Redistribution and use in source and binary forms, with or without
11  * modification, are permitted provided that the following conditions
12  * are met:
13  * 1. Redistributions of source code must retain the above copyright
14  *    notice immediately at the beginning of the file, without modification,
15  *    this list of conditions, and the following disclaimer.
16  * 2. Redistributions in binary form must reproduce the above copyright
17  *    notice, this list of conditions and the following disclaimer in the
18  *    documentation and/or other materials provided with the distribution.
19  * 3. The name of the author may not be used to endorse or promote products
20  *    derived from this software without specific prior written permission.
21  *
22  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
25  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
26  * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
32  * SUCH DAMAGE.
33  */
34 
35 /*
36  * Inspiration and ideas about this driver are from Erik Moe's Linux driver
37  * (qlogicisp.c) and Dave Miller's SBus version of same (qlogicisp.c). Some
38  * ideas dredged from the Solaris driver.
39  */
40 
41 /*
42  * Include header file appropriate for platform we're building on.
43  */
44 
45 #ifdef	__NetBSD__
46 #include <dev/ic/isp_netbsd.h>
47 #endif
48 #ifdef	__FreeBSD__
49 #include <dev/isp/isp_freebsd.h>
50 #endif
51 #ifdef	__OpenBSD__
52 #include <dev/ic/isp_openbsd.h>
53 #endif
54 #ifdef	__linux__
55 #include "isp_linux.h"
56 #endif
57 
58 /*
59  * General defines
60  */
61 
62 #define	MBOX_DELAY_COUNT	1000000 / 100
63 
64 /*
65  * Local static data
66  */
67 
68 /*
69  * Local function prototypes.
70  */
71 static int isp_parse_async __P((struct ispsoftc *, int));
72 static int isp_handle_other_response
73 __P((struct ispsoftc *, ispstatusreq_t *, u_int16_t *));
74 static void isp_parse_status
75 __P((struct ispsoftc *, ispstatusreq_t *, ISP_SCSI_XFER_T *));
76 static void isp_fastpost_complete __P((struct ispsoftc *, u_int32_t));
77 static void isp_scsi_init __P((struct ispsoftc *));
78 static void isp_scsi_channel_init __P((struct ispsoftc *, int));
79 static void isp_fibre_init __P((struct ispsoftc *));
80 static void isp_mark_getpdb_all __P((struct ispsoftc *));
81 static int isp_getpdb __P((struct ispsoftc *, int, isp_pdb_t *));
82 static u_int64_t isp_get_portname __P((struct ispsoftc *, int, int));
83 static int isp_fclink_test __P((struct ispsoftc *, int));
84 static int isp_same_lportdb __P((struct lportdb *, struct lportdb *));
85 static int isp_pdb_sync __P((struct ispsoftc *, int));
86 #ifdef	ISP2100_FABRIC
87 static int isp_scan_fabric __P((struct ispsoftc *));
88 #endif
89 static void isp_fw_state __P((struct ispsoftc *));
90 static void isp_dumpregs __P((struct ispsoftc *, const char *));
91 static void isp_mboxcmd __P((struct ispsoftc *, mbreg_t *));
92 
93 static void isp_update __P((struct ispsoftc *));
94 static void isp_update_bus __P((struct ispsoftc *, int));
95 static void isp_setdfltparm __P((struct ispsoftc *, int));
96 static int isp_read_nvram __P((struct ispsoftc *));
97 static void isp_rdnvram_word __P((struct ispsoftc *, int, u_int16_t *));
98 
99 /*
100  * Reset Hardware.
101  *
102  * Hit the chip over the head, download new f/w if available and set it running.
103  *
104  * Locking done elsewhere.
105  */
106 void
107 isp_reset(isp)
108 	struct ispsoftc *isp;
109 {
110 	mbreg_t mbs;
111 	int loops, i, dodnld = 1;
112 	char *revname;
113 
114 	isp->isp_state = ISP_NILSTATE;
115 
116 	/*
117 	 * Basic types (SCSI, FibreChannel and PCI or SBus)
118 	 * have been set in the MD code. We figure out more
119 	 * here.
120 	 */
121 	isp->isp_dblev = DFLT_DBLEVEL;
122 
123 	/*
124 	 * After we've fired this chip up, zero out the conf1 register
125 	 * for SCSI adapters and other settings for the 2100.
126 	 */
127 
128 	/*
129 	 * Get the current running firmware revision out of the
130 	 * chip before we hit it over the head (if this is our
131 	 * first time through). Note that we store this as the
132 	 * 'ROM' firmware revision- which it may not be. In any
133 	 * case, we don't really use this yet, but we may in
134 	 * the future.
135 	 */
136 	if (isp->isp_touched == 0) {
137 		/*
138 		 * Just in case it was paused...
139 		 */
140 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
141 		mbs.param[0] = MBOX_ABOUT_FIRMWARE;
142 		isp_mboxcmd(isp, &mbs);
143 		/*
144 		 * If this fails, it probably means we're running
145 		 * an old prom, if anything at all...
146 		 */
147 		if (mbs.param[0] == MBOX_COMMAND_COMPLETE) {
148 			isp->isp_romfw_rev[0] = mbs.param[1];
149 			isp->isp_romfw_rev[1] = mbs.param[2];
150 			isp->isp_romfw_rev[2] = mbs.param[3];
151 		}
152 		isp->isp_touched = 1;
153 	}
154 
155 	DISABLE_INTS(isp);
156 
157 	/*
158 	 * Put the board into PAUSE mode.
159 	 */
160 	ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
161 
162 	if (IS_FC(isp)) {
163 		revname = "2X00";
164 		switch (isp->isp_type) {
165 		case ISP_HA_FC_2100:
166 			revname[1] = '1';
167 			break;
168 		case ISP_HA_FC_2200:
169 			revname[1] = '2';
170 			break;
171 		default:
172 			break;
173 		}
174 	} else if (IS_12X0(isp)) {
175 		revname = "12X0";
176 		isp->isp_clock = 60;
177 	} else if (IS_1080(isp)) {
178 		u_int16_t l;
179 		sdparam *sdp = isp->isp_param;
180 		revname = "1080";
181 		isp->isp_clock = 100;
182 		l = ISP_READ(isp, SXP_PINS_DIFF) & ISP1080_MODE_MASK;
183 		switch (l) {
184 		case ISP1080_LVD_MODE:
185 			sdp->isp_lvdmode = 1;
186 			PRINTF("%s: LVD Mode\n", isp->isp_name);
187 			break;
188 		case ISP1080_HVD_MODE:
189 			sdp->isp_diffmode = 1;
190 			PRINTF("%s: Differential Mode\n", isp->isp_name);
191 			break;
192 		case ISP1080_SE_MODE:
193 			sdp->isp_ultramode = 1;
194 			PRINTF("%s: Single-Ended Mode\n", isp->isp_name);
195 			break;
196 		default:
197 			/*
198 			 * Hmm. Up in a wierd mode. This means all SCSI I/O
199 			 * buffer lines are tristated, so we're in a lot of
200 			 * trouble if we don't set things up right.
201 			 */
202 			PRINTF("%s: Illegal Mode 0x%x\n", isp->isp_name, l);
203 			break;
204 		}
205 	} else {
206 		sdparam *sdp = isp->isp_param;
207 		i = ISP_READ(isp, BIU_CONF0) & BIU_CONF0_HW_MASK;
208 		switch (i) {
209 		default:
210 			PRINTF("%s: unknown chip rev. 0x%x- assuming a 1020\n",
211 			    isp->isp_name, i);
212 			/* FALLTHROUGH */
213 		case 1:
214 			revname = "1020";
215 			isp->isp_type = ISP_HA_SCSI_1020;
216 			isp->isp_clock = 40;
217 			break;
218 		case 2:
219 			/*
220 			 * Some 1020A chips are Ultra Capable, but don't
221 			 * run the clock rate up for that unless told to
222 			 * do so by the Ultra Capable bits being set.
223 			 */
224 			revname = "1020A";
225 			isp->isp_type = ISP_HA_SCSI_1020A;
226 			isp->isp_clock = 40;
227 			break;
228 		case 3:
229 			revname = "1040";
230 			isp->isp_type = ISP_HA_SCSI_1040;
231 			isp->isp_clock = 60;
232 			break;
233 		case 4:
234 			revname = "1040A";
235 			isp->isp_type = ISP_HA_SCSI_1040A;
236 			isp->isp_clock = 60;
237 			break;
238 		case 5:
239 			revname = "1040B";
240 			isp->isp_type = ISP_HA_SCSI_1040B;
241 			isp->isp_clock = 60;
242 			break;
243 		case 6:
244 			revname = "1040C(?)";
245 			isp->isp_type = ISP_HA_SCSI_1040C;
246 			isp->isp_clock = 60;
247                         break;
248 		}
249 		/*
250 		 * Now, while we're at it, gather info about ultra
251 		 * and/or differential mode.
252 		 */
253 		if (ISP_READ(isp, SXP_PINS_DIFF) & SXP_PINS_DIFF_MODE) {
254 			PRINTF("%s: Differential Mode\n", isp->isp_name);
255 			sdp->isp_diffmode = 1;
256 		} else {
257 			sdp->isp_diffmode = 0;
258 		}
259 		i = ISP_READ(isp, RISC_PSR);
260 		if (isp->isp_bustype == ISP_BT_SBUS) {
261 			i &= RISC_PSR_SBUS_ULTRA;
262 		} else {
263 			i &= RISC_PSR_PCI_ULTRA;
264 		}
265 		if (i != 0) {
266 			PRINTF("%s: Ultra Mode Capable\n", isp->isp_name);
267 			sdp->isp_ultramode = 1;
268 			/*
269 			 * If we're in Ultra Mode, we have to be 60Mhz clock-
270 			 * even for the SBus version.
271 			 */
272 			isp->isp_clock = 60;
273 		} else {
274 			sdp->isp_ultramode = 0;
275 			/*
276 			 * Clock is known. Gronk.
277 			 */
278 		}
279 
280 		/*
281 		 * Machine dependent clock (if set) overrides
282 		 * our generic determinations.
283 		 */
284 		if (isp->isp_mdvec->dv_clock) {
285 			if (isp->isp_mdvec->dv_clock < isp->isp_clock) {
286 				isp->isp_clock = isp->isp_mdvec->dv_clock;
287 			}
288 		}
289 
290 	}
291 
292 	/*
293 	 * Do MD specific pre initialization
294 	 */
295 	ISP_RESET0(isp);
296 
297 again:
298 
299 	/*
300 	 * Hit the chip over the head with hammer,
301 	 * and give the ISP a chance to recover.
302 	 */
303 
304 	if (IS_SCSI(isp)) {
305 		ISP_WRITE(isp, BIU_ICR, BIU_ICR_SOFT_RESET);
306 		/*
307 		 * A slight delay...
308 		 */
309 		SYS_DELAY(100);
310 
311 #if	0
312 		PRINTF("%s: mbox0-5: 0x%x 0x%x 0x%x 0x%x 0x%x 0x%x\n",
313 		    isp->isp_name, ISP_READ(isp, OUTMAILBOX0),
314 		    ISP_READ(isp, OUTMAILBOX1), ISP_READ(isp, OUTMAILBOX2),
315 		    ISP_READ(isp, OUTMAILBOX3), ISP_READ(isp, OUTMAILBOX4),
316 		    ISP_READ(isp, OUTMAILBOX5));
317 #endif
318 
319 		/*
320 		 * Clear data && control DMA engines.
321 		 */
322 		ISP_WRITE(isp, CDMA_CONTROL,
323 		    DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT);
324 		ISP_WRITE(isp, DDMA_CONTROL,
325 		    DMA_CNTRL_CLEAR_CHAN | DMA_CNTRL_RESET_INT);
326 
327 
328 	} else {
329 		ISP_WRITE(isp, BIU2100_CSR, BIU2100_SOFT_RESET);
330 		/*
331 		 * A slight delay...
332 		 */
333 		SYS_DELAY(100);
334 
335 		/*
336 		 * Clear data && control DMA engines.
337 		 */
338 		ISP_WRITE(isp, CDMA2100_CONTROL,
339 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
340 		ISP_WRITE(isp, TDMA2100_CONTROL,
341 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
342 		ISP_WRITE(isp, RDMA2100_CONTROL,
343 			DMA_CNTRL2100_CLEAR_CHAN | DMA_CNTRL2100_RESET_INT);
344 	}
345 
346 	/*
347 	 * Wait for ISP to be ready to go...
348 	 */
349 	loops = MBOX_DELAY_COUNT;
350 	for (;;) {
351 		if (IS_SCSI(isp)) {
352 			if (!(ISP_READ(isp, BIU_ICR) & BIU_ICR_SOFT_RESET))
353 				break;
354 		} else {
355 			if (!(ISP_READ(isp, BIU2100_CSR) & BIU2100_SOFT_RESET))
356 				break;
357 		}
358 		SYS_DELAY(100);
359 		if (--loops < 0) {
360 			isp_dumpregs(isp, "chip reset timed out");
361 			return;
362 		}
363 	}
364 
365 	/*
366 	 * After we've fired this chip up, zero out the conf1 register
367 	 * for SCSI adapters and other settings for the 2100.
368 	 */
369 
370 	if (IS_SCSI(isp)) {
371 		ISP_WRITE(isp, BIU_CONF1, 0);
372 	} else {
373 		ISP_WRITE(isp, BIU2100_CSR, 0);
374 	}
375 
376 	/*
377 	 * Reset RISC Processor
378 	 */
379 	ISP_WRITE(isp, HCCR, HCCR_CMD_RESET);
380 	SYS_DELAY(100);
381 
382 	/*
383 	 * Establish some initial burst rate stuff.
384 	 * (only for the 1XX0 boards). This really should
385 	 * be done later after fetching from NVRAM.
386 	 */
387 	if (IS_SCSI(isp)) {
388 		u_int16_t tmp = isp->isp_mdvec->dv_conf1;
389 		/*
390 		 * Busted FIFO. Turn off all but burst enables.
391 		 */
392 		if (isp->isp_type == ISP_HA_SCSI_1040A) {
393 			tmp &= BIU_BURST_ENABLE;
394 		}
395 		ISP_SETBITS(isp, BIU_CONF1, tmp);
396 		if (tmp & BIU_BURST_ENABLE) {
397 			ISP_SETBITS(isp, CDMA_CONF, DMA_ENABLE_BURST);
398 			ISP_SETBITS(isp, DDMA_CONF, DMA_ENABLE_BURST);
399 		}
400 #ifdef	PTI_CARDS
401 		if (((sdparam *) isp->isp_param)->isp_ultramode) {
402 			while (ISP_READ(isp, RISC_MTR) != 0x1313) {
403 				ISP_WRITE(isp, RISC_MTR, 0x1313);
404 				ISP_WRITE(isp, HCCR, HCCR_CMD_STEP);
405 			}
406 		} else {
407 			ISP_WRITE(isp, RISC_MTR, 0x1212);
408 		}
409 		/*
410 		 * PTI specific register
411 		 */
412 		ISP_WRITE(isp, RISC_EMB, DUAL_BANK)
413 #else
414 		ISP_WRITE(isp, RISC_MTR, 0x1212);
415 #endif
416 	} else {
417 		ISP_WRITE(isp, RISC_MTR2100, 0x1212);
418 	}
419 
420 	ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE); /* release paused processor */
421 
422 	/*
423 	 * Do MD specific post initialization
424 	 */
425 	ISP_RESET1(isp);
426 
427 	/*
428 	 * Wait for everything to finish firing up...
429 	 */
430 	loops = MBOX_DELAY_COUNT;
431 	while (ISP_READ(isp, OUTMAILBOX0) == MBOX_BUSY) {
432 		SYS_DELAY(100);
433 		if (--loops < 0) {
434 			PRINTF("%s: MBOX_BUSY never cleared on reset\n",
435 			    isp->isp_name);
436 			return;
437 		}
438 	}
439 
440 	/*
441 	 * Up until this point we've done everything by just reading or
442 	 * setting registers. From this point on we rely on at least *some*
443 	 * kind of firmware running in the card.
444 	 */
445 
446 	/*
447 	 * Do some sanity checking.
448 	 */
449 	mbs.param[0] = MBOX_NO_OP;
450 	isp_mboxcmd(isp, &mbs);
451 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
452 		isp_dumpregs(isp, "NOP test failed");
453 		return;
454 	}
455 
456 	if (IS_SCSI(isp)) {
457 		mbs.param[0] = MBOX_MAILBOX_REG_TEST;
458 		mbs.param[1] = 0xdead;
459 		mbs.param[2] = 0xbeef;
460 		mbs.param[3] = 0xffff;
461 		mbs.param[4] = 0x1111;
462 		mbs.param[5] = 0xa5a5;
463 		isp_mboxcmd(isp, &mbs);
464 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
465 			isp_dumpregs(isp,
466 				"Mailbox Register test didn't complete");
467 			return;
468 		}
469 		if (mbs.param[1] != 0xdead || mbs.param[2] != 0xbeef ||
470 		    mbs.param[3] != 0xffff || mbs.param[4] != 0x1111 ||
471 		    mbs.param[5] != 0xa5a5) {
472 			isp_dumpregs(isp, "Register Test Failed");
473 			return;
474 		}
475 
476 	}
477 
478 	/*
479 	 * Download new Firmware, unless requested not to do so.
480 	 * This is made slightly trickier in some cases where the
481 	 * firmware of the ROM revision is newer than the revision
482 	 * compiled into the driver. So, where we used to compare
483 	 * versions of our f/w and the ROM f/w, now we just see
484 	 * whether we have f/w at all and whether a config flag
485 	 * has disabled our download.
486 	 */
487 	if ((isp->isp_mdvec->dv_ispfw == NULL) ||
488 	    (isp->isp_confopts & ISP_CFG_NORELOAD)) {
489 		dodnld = 0;
490 	}
491 
492 	if (dodnld) {
493 		u_int16_t fwlen  = isp->isp_mdvec->dv_fwlen;
494 		if (fwlen == 0)
495 			fwlen = isp->isp_mdvec->dv_ispfw[3]; /* usually here */
496 		for (i = 0; i < fwlen; i++) {
497 			mbs.param[0] = MBOX_WRITE_RAM_WORD;
498 			mbs.param[1] = isp->isp_mdvec->dv_codeorg + i;
499 			mbs.param[2] = isp->isp_mdvec->dv_ispfw[i];
500 			isp_mboxcmd(isp, &mbs);
501 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
502 				PRINTF("%s: F/W download failed at word %d\n",
503 				    isp->isp_name, i);
504 				dodnld = 0;
505 				goto again;
506 			}
507 		}
508 
509 		/*
510 		 * Verify that it downloaded correctly.
511 		 */
512 		mbs.param[0] = MBOX_VERIFY_CHECKSUM;
513 		mbs.param[1] = isp->isp_mdvec->dv_codeorg;
514 		isp_mboxcmd(isp, &mbs);
515 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
516 			isp_dumpregs(isp, "ram checksum failure");
517 			return;
518 		}
519 	} else {
520 		IDPRINTF(3, ("%s: skipping f/w download\n", isp->isp_name));
521 	}
522 
523 	/*
524 	 * Now start it rolling.
525 	 *
526 	 * If we didn't actually download f/w,
527 	 * we still need to (re)start it.
528 	 */
529 
530 	mbs.param[0] = MBOX_EXEC_FIRMWARE;
531 	if (isp->isp_mdvec->dv_codeorg)
532 		mbs.param[1] = isp->isp_mdvec->dv_codeorg;
533 	else
534 		mbs.param[1] = 0x1000;
535 	isp_mboxcmd(isp, &mbs);
536 
537 	if (IS_SCSI(isp)) {
538 		/*
539 		 * Set CLOCK RATE, but only if asked to.
540 		 */
541 		if (isp->isp_clock) {
542 			mbs.param[0] = MBOX_SET_CLOCK_RATE;
543 			mbs.param[1] = isp->isp_clock;
544 			isp_mboxcmd(isp, &mbs);
545 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
546 				PRINTF("failed to set clockrate (0x%x)\n",
547 				    mbs.param[0]);
548 				/* but continue */
549 			}
550 		}
551 	}
552 	mbs.param[0] = MBOX_ABOUT_FIRMWARE;
553 	isp_mboxcmd(isp, &mbs);
554 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
555 		PRINTF("could not get f/w started (0x%x)\n", mbs.param[0]);
556 		return;
557 	}
558 	CFGPRINTF("%s: Board Revision %s, %s F/W Revision %d.%d.%d\n",
559 	    isp->isp_name, revname, dodnld? "loaded" : "resident",
560 	    mbs.param[1], mbs.param[2], mbs.param[3]);
561 	if (IS_FC(isp)) {
562 		if (ISP_READ(isp, BIU2100_CSR) & BIU2100_PCI64) {
563 			CFGPRINTF("%s: in 64-Bit PCI slot\n", isp->isp_name);
564 		}
565 	}
566 
567 	isp->isp_fwrev[0] = mbs.param[1];
568 	isp->isp_fwrev[1] = mbs.param[2];
569 	isp->isp_fwrev[2] = mbs.param[3];
570 	if (isp->isp_romfw_rev[0] || isp->isp_romfw_rev[1] ||
571 	    isp->isp_romfw_rev[2]) {
572 		CFGPRINTF("%s: Last F/W revision was %d.%d.%d\n", isp->isp_name,
573 		    isp->isp_romfw_rev[0], isp->isp_romfw_rev[1],
574 		    isp->isp_romfw_rev[2]);
575 	}
576 
577 	mbs.param[0] = MBOX_GET_FIRMWARE_STATUS;
578 	isp_mboxcmd(isp, &mbs);
579 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
580 		PRINTF("%s: could not GET FIRMWARE STATUS\n", isp->isp_name);
581 		return;
582 	}
583 	isp->isp_maxcmds = mbs.param[2];
584 	CFGPRINTF("%s: %d max I/O commands supported\n",
585 	    isp->isp_name, mbs.param[2]);
586 	isp_fw_state(isp);
587 
588 	/*
589 	 * Set up DMA for the request and result mailboxes.
590 	 */
591 	if (ISP_MBOXDMASETUP(isp) != 0) {
592 		PRINTF("%s: can't setup dma mailboxes\n", isp->isp_name);
593 		return;
594 	}
595 	isp->isp_state = ISP_RESETSTATE;
596 }
597 
598 /*
599  * Initialize Parameters of Hardware to a known state.
600  *
601  * Locks are held before coming here.
602  */
603 
604 void
605 isp_init(isp)
606 	struct ispsoftc *isp;
607 {
608 	/*
609 	 * Must do this first to get defaults established.
610 	 */
611 	isp_setdfltparm(isp, 0);
612 	if (IS_12X0(isp)) {
613 		isp_setdfltparm(isp, 1);
614 	}
615 
616 	if (IS_FC(isp)) {
617 		isp_fibre_init(isp);
618 	} else {
619 		isp_scsi_init(isp);
620 	}
621 }
622 
623 static void
624 isp_scsi_init(isp)
625 	struct ispsoftc *isp;
626 {
627 	sdparam *sdp_chan0, *sdp_chan1;
628 	mbreg_t mbs;
629 
630 	sdp_chan0 = isp->isp_param;
631 	sdp_chan1 = sdp_chan0;
632 	if (IS_12X0(isp)) {
633 		sdp_chan1++;
634 	}
635 
636 	/* First do overall per-card settings. */
637 
638 	/*
639 	 * If we have fast memory timing enabled, turn it on.
640 	 */
641 	if (isp->isp_fast_mttr) {
642 		ISP_WRITE(isp, RISC_MTR, 0x1313);
643 	}
644 
645 	/*
646 	 * Set Retry Delay and Count.
647 	 * You set both channels at the same time.
648 	 */
649 	mbs.param[0] = MBOX_SET_RETRY_COUNT;
650 	mbs.param[1] = sdp_chan0->isp_retry_count;
651 	mbs.param[2] = sdp_chan0->isp_retry_delay;
652 	mbs.param[6] = sdp_chan1->isp_retry_count;
653 	mbs.param[7] = sdp_chan1->isp_retry_delay;
654 
655 	isp_mboxcmd(isp, &mbs);
656 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
657 		PRINTF("%s: failed to set retry count and retry delay\n",
658 		    isp->isp_name);
659 		return;
660 	}
661 
662 	/*
663 	 * Set ASYNC DATA SETUP time. This is very important.
664 	 */
665 	mbs.param[0] = MBOX_SET_ASYNC_DATA_SETUP_TIME;
666 	mbs.param[1] = sdp_chan0->isp_async_data_setup;
667 	mbs.param[2] = sdp_chan1->isp_async_data_setup;
668 	isp_mboxcmd(isp, &mbs);
669 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
670 		PRINTF("%s: failed to set asynchronous data setup time\n",
671 		    isp->isp_name);
672 		return;
673 	}
674 
675 	/*
676 	 * Set ACTIVE Negation State.
677 	 */
678 	mbs.param[0] = MBOX_SET_ACT_NEG_STATE;
679 	mbs.param[1] =
680 	    (sdp_chan0->isp_req_ack_active_neg << 4) |
681 	    (sdp_chan0->isp_data_line_active_neg << 5);
682 	mbs.param[2] =
683 	    (sdp_chan1->isp_req_ack_active_neg << 4) |
684 	    (sdp_chan1->isp_data_line_active_neg << 5);
685 
686 	isp_mboxcmd(isp, &mbs);
687 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
688 		PRINTF("%s: failed to set active negation state "
689 		    "(%d,%d),(%d,%d)\n", isp->isp_name,
690 		    sdp_chan0->isp_req_ack_active_neg,
691 		    sdp_chan0->isp_data_line_active_neg,
692 		    sdp_chan1->isp_req_ack_active_neg,
693 		    sdp_chan1->isp_data_line_active_neg);
694 		/*
695 		 * But don't return.
696 		 */
697 	}
698 
699 	/*
700 	 * Set the Tag Aging limit
701 	 */
702 	mbs.param[0] = MBOX_SET_TAG_AGE_LIMIT;
703 	mbs.param[1] = sdp_chan0->isp_tag_aging;
704 	mbs.param[2] = sdp_chan1->isp_tag_aging;
705 	isp_mboxcmd(isp, &mbs);
706 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
707 		PRINTF("%s: failed to set tag age limit (%d,%d)\n",
708 		    isp->isp_name, sdp_chan0->isp_tag_aging,
709 		    sdp_chan1->isp_tag_aging);
710 		return;
711 	}
712 
713 	/*
714 	 * Set selection timeout.
715 	 */
716 	mbs.param[0] = MBOX_SET_SELECT_TIMEOUT;
717 	mbs.param[1] = sdp_chan0->isp_selection_timeout;
718 	mbs.param[2] = sdp_chan1->isp_selection_timeout;
719 	isp_mboxcmd(isp, &mbs);
720 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
721 		PRINTF("%s: failed to set selection timeout\n", isp->isp_name);
722 		return;
723 	}
724 
725 	/* now do per-channel settings */
726 	isp_scsi_channel_init(isp, 0);
727 	if (IS_12X0(isp))
728 		isp_scsi_channel_init(isp, 1);
729 
730 	/*
731 	 * Now enable request/response queues
732 	 */
733 
734 	mbs.param[0] = MBOX_INIT_RES_QUEUE;
735 	mbs.param[1] = RESULT_QUEUE_LEN;
736 	mbs.param[2] = DMA_MSW(isp->isp_result_dma);
737 	mbs.param[3] = DMA_LSW(isp->isp_result_dma);
738 	mbs.param[4] = 0;
739 	mbs.param[5] = 0;
740 	isp_mboxcmd(isp, &mbs);
741 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
742 		PRINTF("%s: set of response queue failed\n", isp->isp_name);
743 		return;
744 	}
745 	isp->isp_residx = 0;
746 
747 	mbs.param[0] = MBOX_INIT_REQ_QUEUE;
748 	mbs.param[1] = RQUEST_QUEUE_LEN;
749 	mbs.param[2] = DMA_MSW(isp->isp_rquest_dma);
750 	mbs.param[3] = DMA_LSW(isp->isp_rquest_dma);
751 	mbs.param[4] = 0;
752 	mbs.param[5] = 0;
753 	isp_mboxcmd(isp, &mbs);
754 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
755 		PRINTF("%s: set of request queue failed\n", isp->isp_name);
756 		return;
757 	}
758 	isp->isp_reqidx = isp->isp_reqodx = 0;
759 
760 	/*
761 	 *  Turn on Fast Posting, LVD transitions
762 	 */
763 
764 	if (IS_1080(isp) ||
765 	    ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0)) {
766 		mbs.param[0] = MBOX_SET_FW_FEATURES;
767 #ifndef	ISP_NO_FASTPOST_SCSI
768 		mbs.param[1] |= FW_FEATURE_FAST_POST;
769 #else
770 		mbs.param[1] = 0;
771 #endif
772 		if (IS_1080(isp))
773 			mbs.param[1] |= FW_FEATURE_LVD_NOTIFY;
774 		if (mbs.param[1] != 0) {
775 			isp_mboxcmd(isp, &mbs);
776 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
777 				PRINTF("%s: unable enable FW features\n",
778 				    isp->isp_name);
779 			}
780 		}
781 	}
782 
783 	/*
784 	 * Let the outer layers decide whether to issue a SCSI bus reset.
785 	 */
786 	isp->isp_state = ISP_INITSTATE;
787 }
788 
789 static void
790 isp_scsi_channel_init(isp, channel)
791 	struct ispsoftc *isp;
792 	int channel;
793 {
794 	sdparam *sdp;
795 	mbreg_t mbs;
796 	int tgt;
797 
798 	sdp = isp->isp_param;
799 	sdp += channel;
800 
801 	/*
802 	 * Set (possibly new) Initiator ID.
803 	 */
804 	mbs.param[0] = MBOX_SET_INIT_SCSI_ID;
805 	mbs.param[1] = (channel << 7) | sdp->isp_initiator_id;
806 	isp_mboxcmd(isp, &mbs);
807 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
808 		PRINTF("%s: cannot set initiator id on bus %d to %d\n",
809 		    isp->isp_name, channel, sdp->isp_initiator_id);
810 		return;
811 	}
812 
813 	/*
814 	 * Set current per-target parameters to a safe minimum.
815 	 */
816 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
817 		int maxlun, lun;
818 		u_int16_t sdf;
819 
820 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
821 			IDPRINTF(1, ("%s: skipping target %d bus %d settings\n",
822 			    isp->isp_name, tgt, channel));
823 			continue;
824 		}
825 
826 		/*
827 		 * If we're in LVD mode, then we pretty much should
828 		 * only disable tagged queuing.
829 		 */
830 		if (IS_1080(isp) && sdp->isp_lvdmode) {
831 			sdf = DPARM_DEFAULT & ~DPARM_TQING;
832 		} else {
833 			sdf = DPARM_SAFE_DFLT;
834 			/*
835 			 * It is not quite clear when this changed over so that
836 			 * we could force narrow and async, so assume >= 7.55.
837 			 */
838 			if (ISP_FW_REVX(isp->isp_fwrev) >=
839 			    ISP_FW_REV(7, 55, 0)) {
840 				sdf |= DPARM_NARROW | DPARM_ASYNC;
841 			}
842 		}
843 		mbs.param[0] = MBOX_SET_TARGET_PARAMS;
844 		mbs.param[1] = (tgt << 8) | (channel << 15);
845 		mbs.param[2] = sdf;
846 		mbs.param[3] =
847 		    (sdp->isp_devparam[tgt].sync_offset << 8) |
848 		    (sdp->isp_devparam[tgt].sync_period);
849 		isp_mboxcmd(isp, &mbs);
850 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
851 			sdf = DPARM_SAFE_DFLT;
852 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
853 			mbs.param[1] = (tgt << 8) | (channel << 15);
854 			mbs.param[2] = sdf;
855 			mbs.param[3] =
856 			    (sdp->isp_devparam[tgt].sync_offset << 8) |
857 			    (sdp->isp_devparam[tgt].sync_period);
858 			isp_mboxcmd(isp, &mbs);
859 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
860 				PRINTF("%s: failed even to set defaults for "
861 				    "target %d\n", isp->isp_name, tgt);
862 				continue;
863 			}
864 		}
865 
866 #if	0
867 		/*
868 		 * We don't update dev_flags with what we've set
869 		 * because that's not the ultimate goal setting.
870 		 * If we succeed with the command, we *do* update
871 		 * cur_dflags by getting target parameters.
872 		 */
873 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
874 		mbs.param[1] = (tgt << 8) | (channel << 15);
875 		isp_mboxcmd(isp, &mbs);
876 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
877 			/*
878 			 * Urrr.... We'll set cur_dflags to DPARM_SAFE_DFLT so
879 			 * we don't try and do tags if tags aren't enabled.
880 			 */
881 			sdp->isp_devparam[tgt].cur_dflags = DPARM_SAFE_DFLT;
882 		} else {
883 			sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
884 			sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
885 			sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
886 		}
887 		IDPRINTF(3, ("%s: set flags 0x%x got 0x%x back for target %d\n",
888 		    isp->isp_name, sdf, mbs.param[2], tgt));
889 #else
890 		/*
891 		 * We don't update any information because we need to run
892 		 * at least one command per target to cause a new state
893 		 * to be latched.
894 		 */
895 #endif
896 		/*
897 		 * Ensure that we don't believe tagged queuing is enabled yet.
898 		 * It turns out that sometimes the ISP just ignores our
899 		 * attempts to set parameters for devices that it hasn't
900 		 * seen yet.
901 		 */
902 		sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
903 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(7, 55, 0))
904 			maxlun = 32;
905 		else
906 			maxlun = 8;
907 		for (lun = 0; lun < maxlun; lun++) {
908 			mbs.param[0] = MBOX_SET_DEV_QUEUE_PARAMS;
909 			mbs.param[1] = (channel << 15) | (tgt << 8) | lun;
910 			mbs.param[2] = sdp->isp_max_queue_depth;
911 			mbs.param[3] = sdp->isp_devparam[tgt].exc_throttle;
912 			isp_mboxcmd(isp, &mbs);
913 			if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
914 				PRINTF("%s: failed to set device queue "
915 				    "parameters for target %d, lun %d\n",
916 				    isp->isp_name, tgt, lun);
917 				break;
918 			}
919 		}
920 	}
921 }
922 
923 /*
924  * Fibre Channel specific initialization.
925  *
926  * Locks are held before coming here.
927  */
928 static void
929 isp_fibre_init(isp)
930 	struct ispsoftc *isp;
931 {
932 	fcparam *fcp;
933 	isp_icb_t *icbp;
934 	mbreg_t mbs;
935 	int loopid;
936 
937 	fcp = isp->isp_param;
938 
939 	/*
940 	 * For systems that don't have BIOS methods for which
941 	 * we can easily change the NVRAM based loopid, we'll
942 	 * override that here. Note that when we initialize
943 	 * the firmware we may get back a different loopid than
944 	 * we asked for anyway. XXX This is probably not the
945 	 * best way to figure this out XXX
946 	 */
947 #ifndef	__i386__
948 	loopid = DEFAULT_LOOPID(isp);
949 #else
950 	loopid = fcp->isp_loopid;
951 #endif
952 
953 	icbp = (isp_icb_t *) fcp->isp_scratch;
954 	MEMZERO(icbp, sizeof (*icbp));
955 
956 	icbp->icb_version = ICB_VERSION1;
957 #ifdef	ISP_TARGET_MODE
958 	fcp->isp_fwoptions = ICBOPT_TGT_ENABLE;
959 #else
960 	fcp->isp_fwoptions = 0;
961 #endif
962 
963 	fcp->isp_fwoptions |= ICBOPT_FAIRNESS;
964 	/*
965 	 * If this is a 2100 < revision 5, we have to turn off FAIRNESS.
966 	 */
967 	if ((isp->isp_type == ISP_HA_FC_2100) && isp->isp_revision < 5) {
968 		fcp->isp_fwoptions &= ~ICBOPT_FAIRNESS;
969 	}
970 	fcp->isp_fwoptions |= ICBOPT_PDBCHANGE_AE;
971 	fcp->isp_fwoptions |= ICBOPT_HARD_ADDRESS;
972 	/*
973 	 * We have to use FULL LOGIN even though it resets the loop too much
974 	 * because otherwise port database entries don't get updated after
975 	 * a LIP- this is a known f/w bug.
976 	 */
977 	if (ISP_FW_REVX(isp->isp_fwrev) < ISP_FW_REV(1, 17, 0)) {
978 		fcp->isp_fwoptions |= ICBOPT_FULL_LOGIN;
979 	}
980 #ifndef	ISP_NO_FASTPOST_FC
981 	fcp->isp_fwoptions |= ICBOPT_FAST_POST;
982 #endif
983 	if (isp->isp_confopts & ISP_CFG_FULL_DUPLEX)
984 		fcp->isp_fwoptions |= ICBOPT_FULL_DUPLEX;
985 
986 	/*
987 	 * We don't set ICBOPT_PORTNAME because we want our
988 	 * Node Name && Port Names to be distinct.
989 	 */
990 
991 	icbp->icb_fwoptions = fcp->isp_fwoptions;
992 	icbp->icb_maxfrmlen = fcp->isp_maxfrmlen;
993 	if (icbp->icb_maxfrmlen < ICB_MIN_FRMLEN ||
994 	    icbp->icb_maxfrmlen > ICB_MAX_FRMLEN) {
995 		PRINTF("%s: bad frame length (%d) from NVRAM- using %d\n",
996 		    isp->isp_name, fcp->isp_maxfrmlen, ICB_DFLT_FRMLEN);
997 		icbp->icb_maxfrmlen = ICB_DFLT_FRMLEN;
998 	}
999 	icbp->icb_maxalloc = fcp->isp_maxalloc;
1000 	if (icbp->icb_maxalloc < 1) {
1001 		PRINTF("%s: bad maximum allocation (%d)- using 16\n",
1002 		     isp->isp_name, fcp->isp_maxalloc);
1003 		icbp->icb_maxalloc = 16;
1004 	}
1005 	icbp->icb_execthrottle = fcp->isp_execthrottle;
1006 	if (icbp->icb_execthrottle < 1) {
1007 		PRINTF("%s: bad execution throttle of %d- using 16\n",
1008 		    isp->isp_name, fcp->isp_execthrottle);
1009 		icbp->icb_execthrottle = ICB_DFLT_THROTTLE;
1010 	}
1011 	icbp->icb_retry_delay = fcp->isp_retry_delay;
1012 	icbp->icb_retry_count = fcp->isp_retry_count;
1013 	icbp->icb_hardaddr = loopid;
1014 	icbp->icb_logintime = 30;	/* 30 second login timeout */
1015 
1016 	if (fcp->isp_nodewwn) {
1017 		u_int64_t pn;
1018 		MAKE_NODE_NAME_FROM_WWN(icbp->icb_nodename, fcp->isp_nodewwn);
1019 		if (fcp->isp_portwwn) {
1020 			pn = fcp->isp_portwwn;
1021 		} else {
1022 			pn = fcp->isp_nodewwn |
1023 			    (((u_int64_t)(isp->isp_unit+1)) << 56);
1024 		}
1025 		/*
1026 		 * If the top nibble is 2, we can construct a port name
1027 		 * from the node name by setting a nonzero instance in
1028 		 * bits 56..59. Otherwise, we need to make it identical
1029 		 * to Node name...
1030 		 */
1031 		if ((fcp->isp_nodewwn >> 60) == 2) {
1032 			MAKE_NODE_NAME_FROM_WWN(icbp->icb_portname, pn);
1033 		} else {
1034 			MAKE_NODE_NAME_FROM_WWN(icbp->icb_portname,
1035 			    fcp->isp_nodewwn);
1036 		}
1037 	} else {
1038 		fcp->isp_fwoptions &= ~(ICBOPT_USE_PORTNAME|ICBOPT_FULL_LOGIN);
1039 	}
1040 	icbp->icb_rqstqlen = RQUEST_QUEUE_LEN;
1041 	icbp->icb_rsltqlen = RESULT_QUEUE_LEN;
1042 	icbp->icb_rqstaddr[RQRSP_ADDR0015] = DMA_LSW(isp->isp_rquest_dma);
1043 	icbp->icb_rqstaddr[RQRSP_ADDR1631] = DMA_MSW(isp->isp_rquest_dma);
1044 	icbp->icb_respaddr[RQRSP_ADDR0015] = DMA_LSW(isp->isp_result_dma);
1045 	icbp->icb_respaddr[RQRSP_ADDR1631] = DMA_MSW(isp->isp_result_dma);
1046 	ISP_SWIZZLE_ICB(isp, icbp);
1047 
1048 	/*
1049 	 * Do this *before* initializing the firmware.
1050 	 */
1051 	isp_mark_getpdb_all(isp);
1052 	fcp->isp_fwstate = FW_CONFIG_WAIT;
1053 	fcp->isp_loopstate = LOOP_NIL;
1054 
1055 	MemoryBarrier();
1056 	for (;;) {
1057 		mbs.param[0] = MBOX_INIT_FIRMWARE;
1058 		mbs.param[1] = 0;
1059 		mbs.param[2] = DMA_MSW(fcp->isp_scdma);
1060 		mbs.param[3] = DMA_LSW(fcp->isp_scdma);
1061 		mbs.param[4] = 0;
1062 		mbs.param[5] = 0;
1063 		mbs.param[6] = 0;
1064 		mbs.param[7] = 0;
1065 		isp_mboxcmd(isp, &mbs);
1066 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
1067 			PRINTF("%s: INIT FIRMWARE failed (code 0x%x)\n",
1068 			    isp->isp_name, mbs.param[0]);
1069 			if (mbs.param[0] & 0x8000) {
1070 				SYS_DELAY(1000);
1071 				continue;
1072 			}
1073 			return;
1074 		}
1075 		break;
1076 	}
1077 
1078 	isp->isp_reqidx = isp->isp_reqodx = 0;
1079 	isp->isp_residx = 0;
1080 	isp->isp_sendmarker = 1;
1081 
1082 	/*
1083 	 * Whatever happens, we're now committed to being here.
1084 	 */
1085 	isp->isp_state = ISP_INITSTATE;
1086 }
1087 
1088 /*
1089  * Fibre Channel Support- get the port database for the id.
1090  *
1091  * Locks are held before coming here. Return 0 if success,
1092  * else failure.
1093  */
1094 
1095 static void
1096 isp_mark_getpdb_all(isp)
1097 	struct ispsoftc *isp;
1098 {
1099 	fcparam *fcp = (fcparam *) isp->isp_param;
1100 	int i;
1101 	for (i = 0; i < MAX_FC_TARG; i++) {
1102 		fcp->portdb[i].valid = 0;
1103 	}
1104 }
1105 
1106 static int
1107 isp_getpdb(isp, id, pdbp)
1108 	struct ispsoftc *isp;
1109 	int id;
1110 	isp_pdb_t *pdbp;
1111 {
1112 	fcparam *fcp = (fcparam *) isp->isp_param;
1113 	mbreg_t mbs;
1114 
1115 	mbs.param[0] = MBOX_GET_PORT_DB;
1116 	mbs.param[1] = id << 8;
1117 	mbs.param[2] = DMA_MSW(fcp->isp_scdma);
1118 	mbs.param[3] = DMA_LSW(fcp->isp_scdma);
1119 	/*
1120 	 * Unneeded. For the 2100, except for initializing f/w, registers
1121 	 * 4/5 have to not be written to.
1122 	 *	mbs.param[4] = 0;
1123 	 *	mbs.param[5] = 0;
1124 	 *
1125 	 */
1126 	mbs.param[6] = 0;
1127 	mbs.param[7] = 0;
1128 	isp_mboxcmd(isp, &mbs);
1129 	switch (mbs.param[0]) {
1130 	case MBOX_COMMAND_COMPLETE:
1131 		MemoryBarrier();
1132 		ISP_UNSWIZZLE_AND_COPY_PDBP(isp, pdbp, fcp->isp_scratch);
1133 		break;
1134 	case MBOX_HOST_INTERFACE_ERROR:
1135 		PRINTF("%s: DMA error getting port database\n", isp->isp_name);
1136 		return (-1);
1137 	case MBOX_COMMAND_PARAM_ERROR:
1138 		/* Not Logged In */
1139 		IDPRINTF(3, ("%s: Param Error on Get Port Database for id %d\n",
1140 		    isp->isp_name, id));
1141 		return (-1);
1142 	default:
1143 		PRINTF("%s: error 0x%x getting port database for ID %d\n",
1144 		    isp->isp_name, mbs.param[0], id);
1145 		return (-1);
1146 	}
1147 	return (0);
1148 }
1149 
1150 static u_int64_t
1151 isp_get_portname(isp, loopid, nodename)
1152 	struct ispsoftc *isp;
1153 	int loopid;
1154 	int nodename;
1155 {
1156 	u_int64_t wwn = 0;
1157 	mbreg_t mbs;
1158 
1159 	mbs.param[0] = MBOX_GET_PORT_NAME;
1160 	mbs.param[1] = loopid << 8;
1161 	if (nodename)
1162 		mbs.param[1] |= 1;
1163 	isp_mboxcmd(isp, &mbs);
1164 	if (mbs.param[0] == MBOX_COMMAND_COMPLETE) {
1165 		wwn =
1166 		    (((u_int64_t)(mbs.param[2] & 0xff)) << 56) |
1167 		    (((u_int64_t)(mbs.param[2] >> 8))	<< 48) |
1168 		    (((u_int64_t)(mbs.param[3] & 0xff))	<< 40) |
1169 		    (((u_int64_t)(mbs.param[3] >> 8))	<< 32) |
1170 		    (((u_int64_t)(mbs.param[6] & 0xff))	<< 24) |
1171 		    (((u_int64_t)(mbs.param[6] >> 8))	<< 16) |
1172 		    (((u_int64_t)(mbs.param[7] & 0xff))	<<  8) |
1173 		    (((u_int64_t)(mbs.param[7] >> 8)));
1174 	}
1175 	return (wwn);
1176 }
1177 
1178 /*
1179  * Make sure we have good FC link and know our Loop ID.
1180  */
1181 
1182 static int
1183 isp_fclink_test(isp, waitdelay)
1184 	struct ispsoftc *isp;
1185 	int waitdelay;
1186 {
1187 	static char *toponames[] = {
1188 		"Private Loop",
1189 		"FL Port",
1190 		"N-Port to N-Port",
1191 		"F Port"
1192 	};
1193 	char *tname;
1194 	mbreg_t mbs;
1195 	int count, topo = -1;
1196 	u_int8_t lwfs;
1197 	fcparam *fcp;
1198 #if	defined(ISP2100_FABRIC)
1199 	isp_pdb_t pdb;
1200 #endif
1201 	fcp = isp->isp_param;
1202 
1203 	/*
1204 	 * Wait up to N microseconds for F/W to go to a ready state.
1205 	 */
1206 	lwfs = FW_CONFIG_WAIT;
1207 	for (count = 0; count < waitdelay; count += 100) {
1208 		isp_fw_state(isp);
1209 		if (lwfs != fcp->isp_fwstate) {
1210 			PRINTF("%s: Firmware State %s -> %s\n",
1211 			    isp->isp_name, isp2100_fw_statename((int)lwfs),
1212 			    isp2100_fw_statename((int)fcp->isp_fwstate));
1213 			lwfs = fcp->isp_fwstate;
1214 		}
1215 		if (fcp->isp_fwstate == FW_READY) {
1216 			break;
1217 		}
1218 		SYS_DELAY(100);	/* wait 100 microseconds */
1219 	}
1220 
1221 	/*
1222 	 * If we haven't gone to 'ready' state, return.
1223 	 */
1224 	if (fcp->isp_fwstate != FW_READY) {
1225 		return (-1);
1226 	}
1227 
1228 	/*
1229 	 * Get our Loop ID (if possible). We really need to have it.
1230 	 */
1231 	mbs.param[0] = MBOX_GET_LOOP_ID;
1232 	isp_mboxcmd(isp, &mbs);
1233 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
1234 		PRINTF("%s: GET LOOP ID failed\n", isp->isp_name);
1235 		return (-1);
1236 	}
1237 	fcp->isp_loopid = mbs.param[1];
1238 	if (isp->isp_type == ISP_HA_FC_2200) {
1239 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(2, 0, 14)) {
1240 			topo = (int) mbs.param[6];
1241 		}
1242 	} else if (isp->isp_type == ISP_HA_FC_2100) {
1243 		if (ISP_FW_REVX(isp->isp_fwrev) >= ISP_FW_REV(1, 17, 26)) {
1244 			topo = (int) mbs.param[6];
1245 		}
1246 	}
1247 	if (topo < 0 || topo > 3)
1248 		tname = "unknown";
1249 	else
1250 		tname = toponames[topo];
1251 
1252 	/*
1253 	 * If we're not on a fabric, the low 8 bits will be our AL_PA.
1254 	 * If we're on a fabric, the low 8 bits will still be our AL_PA.
1255 	 */
1256 	fcp->isp_alpa = mbs.param[2];
1257 #if	defined(ISP2100_FABRIC)
1258 	fcp->isp_onfabric = 0;
1259 	if (isp_getpdb(isp, FL_PORT_ID, &pdb) == 0) {
1260 		fcp->isp_portid = mbs.param[2] | (((int)mbs.param[3]) << 16);
1261 		fcp->isp_onfabric = 1;
1262 		CFGPRINTF("%s: Loop ID %d, AL_PA 0x%x, Port ID 0x%x Loop State "
1263 		    "0x%x topology %s\n", isp->isp_name, fcp->isp_loopid,
1264 		    fcp->isp_alpa, fcp->isp_portid, fcp->isp_loopstate, tname);
1265 
1266 		/*
1267 		 * Make sure we're logged out of all fabric devices.
1268 		 */
1269 		for (count = FC_SNS_ID+1; count < MAX_FC_TARG; count++) {
1270 			struct lportdb *lp = &fcp->portdb[count];
1271 			if (lp->valid == 0 || lp->fabdev == 0)
1272 				continue;
1273 			PRINTF("%s: logging out target %d at Loop ID %d "
1274 			    "(port id 0x%x)\n", isp->isp_name, count,
1275 			    lp->loopid, lp->portid);
1276 			mbs.param[0] = MBOX_FABRIC_LOGOUT;
1277 			mbs.param[1] = lp->loopid << 8;
1278 			mbs.param[2] = 0;
1279 			mbs.param[3] = 0;
1280 			isp_mboxcmd(isp, &mbs);
1281 		}
1282 	} else
1283 #endif
1284 	CFGPRINTF("%s: Loop ID %d, ALPA 0x%x Loop State 0x%x topology %s\n",
1285 	    isp->isp_name, fcp->isp_loopid, fcp->isp_alpa, fcp->isp_loopstate,
1286 	    tname);
1287 	fcp->loop_seen_once = 1;
1288 	return (0);
1289 }
1290 
1291 /*
1292  * Compare two local port db entities and return 1 if they're the same, else 0.
1293  */
1294 
1295 static int
1296 isp_same_lportdb(a, b)
1297 	struct lportdb *a, *b;
1298 {
1299 	/*
1300 	 * We decide two lports are the same if they have non-zero and
1301 	 * identical port WWNs and identical loop IDs.
1302 	 */
1303 
1304 	if (a->port_wwn == 0 || a->port_wwn != b->port_wwn ||
1305 	    a->loopid != b->loopid) {
1306 		return (0);
1307 	} else {
1308 		return (1);
1309 	}
1310 }
1311 
1312 /*
1313  * Synchronize our soft copy of the port database with what the f/w thinks
1314  * (with a view toward possibly for a specific target....)
1315  */
1316 
1317 static int
1318 isp_pdb_sync(isp, target)
1319 	struct ispsoftc *isp;
1320 	int target;
1321 {
1322 	struct lportdb *lp, *tport;
1323 	fcparam *fcp = isp->isp_param;
1324 	isp_pdb_t pdb;
1325 	int loopid, lim;
1326 
1327 #ifdef	ISP2100_FABRIC
1328 	/*
1329 	 * XXX: If we do this *after* building up our local port database,
1330 	 * XXX: the commands simply don't work.
1331 	 */
1332 	/*
1333 	 * (Re)discover all fabric devices
1334 	 */
1335 	if (fcp->isp_onfabric)
1336 		(void) isp_scan_fabric(isp);
1337 #endif
1338 
1339 
1340 	/*
1341 	 * Run through the local loop ports and get port database info
1342 	 * for each loop ID.
1343 	 *
1344 	 * There's a somewhat unexplained situation where the f/w passes back
1345 	 * the wrong database entity- if that happens, just restart (up to
1346 	 * FL_PORT_ID times).
1347 	 */
1348 	tport = fcp->tport;
1349 	/*
1350 	 * make sure the temp port database is clean...
1351 	 */
1352 	MEMZERO((void *) tport, sizeof (tport));
1353 	for (lim = loopid = 0; loopid < FL_PORT_ID; loopid++) {
1354 		lp = &tport[loopid];
1355 		lp->node_wwn = isp_get_portname(isp, loopid, 1);
1356 		if (lp->node_wwn == 0)
1357 			continue;
1358 		lp->port_wwn = isp_get_portname(isp, loopid, 0);
1359 		if (lp->port_wwn == 0) {
1360 			lp->node_wwn = 0;
1361 			continue;
1362 		}
1363 
1364 		/*
1365 		 * Get an entry....
1366 		 */
1367 		if (isp_getpdb(isp, loopid, &pdb) != 0) {
1368 			continue;
1369 		}
1370 
1371 		/*
1372 		 * If the returned database element doesn't match what we
1373 		 * asked for, restart the process entirely (up to a point...).
1374 		 */
1375 		if (pdb.pdb_loopid != loopid) {
1376 			IDPRINTF(1, ("%s: wankage (%d != %d)\n",
1377 			    isp->isp_name, pdb.pdb_loopid, loopid));
1378 			loopid = 0;
1379 			if (lim++ < FL_PORT_ID) {
1380 				continue;
1381 			}
1382 			PRINTF("%s: giving up on synchronizing the port "
1383 			    "database\n", isp->isp_name);
1384 			return (-1);
1385 		}
1386 
1387 		/*
1388 		 * Save the pertinent info locally.
1389 		 */
1390 		lp->node_wwn =
1391 		    (((u_int64_t)pdb.pdb_nodename[0]) << 56) |
1392 		    (((u_int64_t)pdb.pdb_nodename[1]) << 48) |
1393 		    (((u_int64_t)pdb.pdb_nodename[2]) << 40) |
1394 		    (((u_int64_t)pdb.pdb_nodename[3]) << 32) |
1395 		    (((u_int64_t)pdb.pdb_nodename[4]) << 24) |
1396 		    (((u_int64_t)pdb.pdb_nodename[5]) << 16) |
1397 		    (((u_int64_t)pdb.pdb_nodename[6]) <<  8) |
1398 		    (((u_int64_t)pdb.pdb_nodename[7]));
1399 		lp->port_wwn =
1400 		    (((u_int64_t)pdb.pdb_portname[0]) << 56) |
1401 		    (((u_int64_t)pdb.pdb_portname[1]) << 48) |
1402 		    (((u_int64_t)pdb.pdb_portname[2]) << 40) |
1403 		    (((u_int64_t)pdb.pdb_portname[3]) << 32) |
1404 		    (((u_int64_t)pdb.pdb_portname[4]) << 24) |
1405 		    (((u_int64_t)pdb.pdb_portname[5]) << 16) |
1406 		    (((u_int64_t)pdb.pdb_portname[6]) <<  8) |
1407 		    (((u_int64_t)pdb.pdb_portname[7]));
1408 		lp->roles =
1409 		    (pdb.pdb_prli_svc3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
1410 		lp->portid = BITS2WORD(pdb.pdb_portid_bits);
1411 		lp->loopid = pdb.pdb_loopid;
1412 		/*
1413 		 * Do a quick check to see whether this matches the saved port
1414 		 * database for the same loopid. We do this here to save
1415 		 * searching later (if possible). Note that this fails over
1416 		 * time as things shuffle on the loop- we get the current
1417 		 * loop state (where loop id as an index matches loop id in
1418 		 * use) and then compare it to our saved database which
1419 		 * never shifts.
1420 		 */
1421 		if (isp_same_lportdb(lp, &fcp->portdb[target])) {
1422 			lp->valid = 1;
1423 		}
1424 	}
1425 
1426 	/*
1427 	 * If we get this far, we've settled our differences with the f/w
1428 	 * and we can say that the loop state is ready.
1429 	 */
1430 	fcp->isp_loopstate = LOOP_READY;
1431 
1432 	/*
1433 	 * Mark all of the permanent local loop database entries as invalid.
1434 	 */
1435 	for (loopid = 0; loopid < FL_PORT_ID; loopid++) {
1436 		fcp->portdb[loopid].valid = 0;
1437 	}
1438 
1439 	/*
1440 	 * Now merge our local copy of the port database into our saved copy.
1441 	 * Notify the outer layers of new devices arriving.
1442 	 */
1443 	for (loopid = 0; loopid < FL_PORT_ID; loopid++) {
1444 		int i;
1445 
1446 		/*
1447 		 * If we don't have a non-zero Port WWN, we're not here.
1448 		 */
1449 		if (tport[loopid].port_wwn == 0) {
1450 			continue;
1451 		}
1452 
1453 		/*
1454 		 * If we've already marked our tmp copy as valid,
1455 		 * this means that we've decided that it's the
1456 		 * same as our saved data base. This didn't include
1457 		 * the 'valid' marking so we have set that here.
1458 		 */
1459 		if (tport[loopid].valid) {
1460 			fcp->portdb[loopid].valid = 1;
1461 			continue;
1462 		}
1463 
1464 		/*
1465 		 * For the purposes of deciding whether this is the
1466 		 * 'same' device or not, we only search for an identical
1467 		 * Port WWN. Node WWNs may or may not be the same as
1468 		 * the Port WWN, and there may be multiple different
1469 		 * Port WWNs with the same Node WWN. It would be chaos
1470 		 * to have multiple identical Port WWNs, so we don't
1471 		 * allow that.
1472 		 */
1473 
1474 		for (i = 0; i < FL_PORT_ID; i++) {
1475 			int j;
1476 			if (fcp->portdb[i].port_wwn == 0)
1477 				continue;
1478 			if (fcp->portdb[i].port_wwn != tport[loopid].port_wwn)
1479 				continue;
1480 			/*
1481 			 * We found this WWN elsewhere- it's changed
1482 			 * loopids then. We don't change it's actual
1483 			 * position in our cached port database- we
1484 			 * just change the actual loop ID we'd use.
1485 			 */
1486 			if (fcp->portdb[i].loopid != loopid) {
1487 				PRINTF("%s: Target ID %d Loop 0x%x (Port 0x%x) "
1488 				    "=> Loop 0x%x (Port 0x%x) \n",
1489 				    isp->isp_name, i, fcp->portdb[i].loopid,
1490 				    fcp->portdb[i].portid, loopid,
1491 				    tport[loopid].portid);
1492 			}
1493 			fcp->portdb[i].portid = tport[loopid].portid;
1494 			fcp->portdb[i].loopid = loopid;
1495 			fcp->portdb[i].valid = 1;
1496 			/*
1497 			 * XXX: Should we also propagate roles in case they
1498 			 * XXX: changed?
1499 			 */
1500 
1501 			/*
1502 			 * Now make sure this Port WWN doesn't exist elsewhere
1503 			 * in the port database.
1504 			 */
1505 			for (j = i+1; j < FL_PORT_ID; j++) {
1506 				if (fcp->portdb[i].port_wwn !=
1507 				    fcp->portdb[j].port_wwn) {
1508 					continue;
1509 				}
1510 				PRINTF("%s: Target ID %d Duplicates Target ID "
1511 				    "%d- killing off both\n",
1512 				    isp->isp_name, j, i);
1513 				/*
1514 				 * Invalidate the 'old' *and* 'new' ones.
1515 				 * This is really harsh and not quite right,
1516 				 * but if this happens, we really don't know
1517 				 * who is what at this point.
1518 				 */
1519 				fcp->portdb[i].valid = 0;
1520 				fcp->portdb[j].valid = 0;
1521 			}
1522 			break;
1523 		}
1524 
1525 		/*
1526 		 * If we didn't traverse the entire port database,
1527 		 * then we found (and remapped) an existing entry.
1528 		 * No need to notify anyone- go for the next one.
1529 		 */
1530 		if (i < FL_PORT_ID) {
1531 			continue;
1532 		}
1533 
1534 		/*
1535 		 * We've not found this Port WWN anywhere. It's a new entry.
1536 		 * See if we can leave it where it is (with target == loopid).
1537 		 */
1538 		if (fcp->portdb[loopid].port_wwn != 0) {
1539 			for (lim = 0; lim < FL_PORT_ID; lim++) {
1540 				if (fcp->portdb[lim].port_wwn == 0)
1541 					break;
1542 			}
1543 			/* "Cannot Happen" */
1544 			if (lim == FL_PORT_ID) {
1545 				PRINTF("%s: remap overflow?\n", isp->isp_name);
1546 				continue;
1547 			}
1548 			i = lim;
1549 		} else {
1550 			i = loopid;
1551 		}
1552 
1553 		/*
1554 		 * NB:	The actual loopid we use here is loopid- we may
1555 		 *	in fact be at a completely different index (target).
1556 		 */
1557 		fcp->portdb[i].loopid = loopid;
1558 		fcp->portdb[i].port_wwn = tport[loopid].port_wwn;
1559 		fcp->portdb[i].node_wwn = tport[loopid].node_wwn;
1560 		fcp->portdb[i].roles = tport[loopid].roles;
1561 		fcp->portdb[i].portid = tport[loopid].portid;
1562 		fcp->portdb[i].valid = 1;
1563 
1564 		/*
1565 		 * Tell the outside world we've arrived.
1566 		 */
1567 		(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &i);
1568 	}
1569 
1570 	/*
1571 	 * Now find all previously used targets that are now invalid and
1572 	 * notify the outer layers that they're gone.
1573 	 */
1574 	for (lp = fcp->portdb; lp < &fcp->portdb[FL_PORT_ID]; lp++) {
1575 		if (lp->valid || lp->port_wwn == 0)
1576 			continue;
1577 
1578 		/*
1579 		 * Tell the outside world we've gone away.
1580 		 */
1581 		loopid = lp - fcp->portdb;
1582 		(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &loopid);
1583 		MEMZERO((void *) lp, sizeof (*lp));
1584 	}
1585 
1586 #ifdef	ISP2100_FABRIC
1587 	/*
1588 	 * Now log in any fabric devices
1589 	 */
1590 	for (lp = &fcp->portdb[FC_SNS_ID+1];
1591 	     lp < &fcp->portdb[MAX_FC_TARG]; lp++) {
1592 		mbreg_t mbs;
1593 
1594 		/*
1595 		 * Nothing here?
1596 		 */
1597 		if (lp->port_wwn == 0)
1598 			continue;
1599 		/*
1600 		 * Don't try to log into yourself.
1601 		 */
1602 		if (lp->portid == fcp->isp_portid)
1603 			continue;
1604 
1605 		/*
1606 		 * Force a logout.
1607 		 */
1608 		lp->loopid = loopid = lp - fcp->portdb;
1609 		mbs.param[0] = MBOX_FABRIC_LOGOUT;
1610 		mbs.param[1] = lp->loopid << 8;
1611 		mbs.param[2] = 0;
1612 		mbs.param[3] = 0;
1613 		isp_mboxcmd(isp, &mbs);
1614 
1615 		/*
1616 		 * And log in....
1617 		 */
1618 		mbs.param[0] = MBOX_FABRIC_LOGIN;
1619 		mbs.param[1] = lp->loopid << 8;
1620 		mbs.param[2] = lp->portid >> 16;
1621 		mbs.param[3] = lp->portid & 0xffff;
1622 		isp_mboxcmd(isp, &mbs);
1623 		switch (mbs.param[0]) {
1624 		case  MBOX_COMMAND_COMPLETE:
1625 			break;
1626 		case MBOX_COMMAND_ERROR:
1627 			switch (mbs.param[1]) {
1628 			case	1:
1629 				PRINTF("%s: no loop\n", isp->isp_name);
1630 				break;
1631 			case	2:
1632 				PRINTF("%s: IOCB buffer could not be alloced\n",
1633 				    isp->isp_name);
1634 				break;
1635 			case	3:
1636 				PRINTF("%s: could not alloc xchange resource\n",
1637 				    isp->isp_name);
1638 				break;
1639 			case	4:
1640 				PRINTF("%s: ELS timeout\n", isp->isp_name);
1641 				break;
1642 			case	5:
1643 				PRINTF("%s: no fabric port\n", isp->isp_name);
1644 				break;
1645 			case	6:
1646 				PRINTF("%s: remote device cannot be a target\n",
1647 				    isp->isp_name);
1648 				break;
1649 			default:
1650 				break;
1651 			}
1652 			continue;
1653 		default:
1654 			continue;
1655 		}
1656 
1657 		lp->valid = 1;
1658 		lp->fabdev = 1;
1659 		if (isp_getpdb(isp, loopid, &pdb) != 0) {
1660 			/*
1661 			 * Be kind...
1662 			 */
1663 			lp->roles = (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT);
1664 			PRINTF("%s: Faked PortID 0x%x into LoopID %d\n",
1665 			    isp->isp_name, lp->portid, lp->loopid);
1666 			continue;
1667 		}
1668 		if (pdb.pdb_loopid != lp->loopid) {
1669 			lp->roles = (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT);
1670 			PRINTF("%s: Wanked PortID 0x%x to LoopID %d\n",
1671 			    isp->isp_name, lp->portid, lp->loopid);
1672 			continue;
1673 		}
1674 		lp->roles =
1675 		    (pdb.pdb_prli_svc3 & SVC3_ROLE_MASK) >> SVC3_ROLE_SHIFT;
1676 		lp->portid = BITS2WORD(pdb.pdb_portid_bits);
1677 		lp->loopid = loopid;
1678 		lp->node_wwn =
1679 		    (((u_int64_t)pdb.pdb_nodename[0]) << 56) |
1680 		    (((u_int64_t)pdb.pdb_nodename[1]) << 48) |
1681 		    (((u_int64_t)pdb.pdb_nodename[2]) << 40) |
1682 		    (((u_int64_t)pdb.pdb_nodename[3]) << 32) |
1683 		    (((u_int64_t)pdb.pdb_nodename[4]) << 24) |
1684 		    (((u_int64_t)pdb.pdb_nodename[5]) << 16) |
1685 		    (((u_int64_t)pdb.pdb_nodename[6]) <<  8) |
1686 		    (((u_int64_t)pdb.pdb_nodename[7]));
1687 		lp->port_wwn =
1688 		    (((u_int64_t)pdb.pdb_portname[0]) << 56) |
1689 		    (((u_int64_t)pdb.pdb_portname[1]) << 48) |
1690 		    (((u_int64_t)pdb.pdb_portname[2]) << 40) |
1691 		    (((u_int64_t)pdb.pdb_portname[3]) << 32) |
1692 		    (((u_int64_t)pdb.pdb_portname[4]) << 24) |
1693 		    (((u_int64_t)pdb.pdb_portname[5]) << 16) |
1694 		    (((u_int64_t)pdb.pdb_portname[6]) <<  8) |
1695 		    (((u_int64_t)pdb.pdb_portname[7]));
1696 		/*
1697 		 * Check to make sure this all makes sense.
1698 		 */
1699 		if (lp->node_wwn && lp->port_wwn) {
1700 			(void) isp_async(isp, ISPASYNC_PDB_CHANGED, &loopid);
1701 			continue;
1702 		}
1703 		lp->fabdev = lp->valid = 0;
1704 		PRINTF("%s: Target %d (Loop 0x%x) Port ID 0x%x lost its WWN\n",
1705 		    isp->isp_name, loopid, lp->loopid, lp->portid);
1706 		mbs.param[0] = MBOX_FABRIC_LOGOUT;
1707 		mbs.param[1] = lp->loopid << 8;
1708 		mbs.param[2] = 0;
1709 		mbs.param[3] = 0;
1710 		isp_mboxcmd(isp, &mbs);
1711 	}
1712 #endif
1713 	return (0);
1714 }
1715 
1716 #ifdef	ISP2100_FABRIC
1717 static int
1718 isp_scan_fabric(isp)
1719 	struct ispsoftc *isp;
1720 {
1721 	fcparam *fcp = isp->isp_param;
1722 	u_int32_t portid, first_nz_portid;
1723 	sns_screq_t *reqp;
1724 	sns_scrsp_t *resp;
1725 	mbreg_t mbs;
1726 	int hicap;
1727 
1728 	reqp = (sns_screq_t *) fcp->isp_scratch;
1729 	resp = (sns_scrsp_t *) (&((char *)fcp->isp_scratch)[0x100]);
1730 	first_nz_portid = portid = fcp->isp_portid;
1731 
1732 	for (hicap = 0; hicap < 1024; hicap++) {
1733 		MEMZERO((void *) reqp, SNS_GAN_REQ_SIZE);
1734 		reqp->snscb_rblen = SNS_GAN_RESP_SIZE >> 1;
1735 		reqp->snscb_addr[RQRSP_ADDR0015] =
1736 			DMA_LSW(fcp->isp_scdma + 0x100);
1737 		reqp->snscb_addr[RQRSP_ADDR1631] =
1738 			DMA_MSW(fcp->isp_scdma + 0x100);
1739 		reqp->snscb_sblen = 6;
1740 		reqp->snscb_data[0] = SNS_GAN;
1741 		reqp->snscb_data[4] = portid & 0xffff;
1742 		reqp->snscb_data[5] = (portid >> 16) & 0xff;
1743 		ISP_SWIZZLE_SNS_REQ(isp, reqp);
1744 		mbs.param[0] = MBOX_SEND_SNS;
1745 		mbs.param[1] = SNS_GAN_REQ_SIZE >> 1;
1746 		mbs.param[2] = DMA_MSW(fcp->isp_scdma);
1747 		mbs.param[3] = DMA_LSW(fcp->isp_scdma);
1748 		mbs.param[6] = 0;
1749 		mbs.param[7] = 0;
1750 		MemoryBarrier();
1751 		isp_mboxcmd(isp, &mbs);
1752 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
1753 			return (-1);
1754 		}
1755 		ISP_UNSWIZZLE_SNS_RSP(isp, resp, SNS_GAN_RESP_SIZE >> 1);
1756 		portid = (((u_int32_t) resp->snscb_port_id[0]) << 16) |
1757 		    (((u_int32_t) resp->snscb_port_id[1]) << 8) |
1758 		    (((u_int32_t) resp->snscb_port_id[2]));
1759 		if (isp_async(isp, ISPASYNC_FABRIC_DEV, resp)) {
1760 			return (-1);
1761 		}
1762 		if (first_nz_portid == 0 && portid) {
1763 			first_nz_portid = portid;
1764 		}
1765 		if (first_nz_portid == portid) {
1766 			return (0);
1767 		}
1768 	}
1769 	/*
1770 	 * We either have a broken name server or a huge fabric if we get here.
1771 	 */
1772 	return (0);
1773 }
1774 #endif
1775 /*
1776  * Start a command. Locking is assumed done in the caller.
1777  */
1778 
1779 int32_t
1780 ispscsicmd(xs)
1781 	ISP_SCSI_XFER_T *xs;
1782 {
1783 	struct ispsoftc *isp;
1784 	u_int16_t iptr, optr;
1785 	union {
1786 		ispreq_t *_reqp;
1787 		ispreqt2_t *_t2reqp;
1788 	} _u;
1789 #define	reqp	_u._reqp
1790 #define	t2reqp	_u._t2reqp
1791 #define	UZSIZE	max(sizeof (ispreq_t), sizeof (ispreqt2_t))
1792 	int target, i;
1793 
1794 	XS_INITERR(xs);
1795 	isp = XS_ISP(xs);
1796 
1797 	if (isp->isp_state != ISP_RUNSTATE) {
1798 		PRINTF("%s: adapter not ready\n", isp->isp_name);
1799 		XS_SETERR(xs, HBA_BOTCH);
1800 		return (CMD_COMPLETE);
1801 	}
1802 
1803 	/*
1804 	 * We *could* do the different sequence type that has close
1805 	 * to the whole Queue Entry for the command...
1806 	 */
1807 
1808 	if (XS_CDBLEN(xs) > (IS_FC(isp) ? 16 : 12) || XS_CDBLEN(xs) == 0) {
1809 		PRINTF("%s: unsupported cdb length (%d, CDB[0]=0x%x)\n",
1810 		    isp->isp_name, XS_CDBLEN(xs), XS_CDBP(xs)[0]);
1811 		XS_SETERR(xs, HBA_BOTCH);
1812 		return (CMD_COMPLETE);
1813 	}
1814 
1815 	/*
1816 	 * Check to see whether we have good firmware state still or
1817 	 * need to refresh our port database for this target.
1818 	 */
1819 	target = XS_TGT(xs);
1820 	if (IS_FC(isp)) {
1821 		fcparam *fcp = isp->isp_param;
1822 		struct lportdb *lp;
1823 #if	defined(ISP2100_FABRIC)
1824 		if (target >= FL_PORT_ID) {
1825 			/*
1826 			 * If we're not on a Fabric, we can't have a target
1827 			 * above FL_PORT_ID-1. If we're on a fabric, we
1828 			 * can't have a target less than FC_SNS_ID+1.
1829 			 */
1830 			if (fcp->isp_onfabric == 0 || target <= FC_SNS_ID) {
1831 				XS_SETERR(xs, HBA_SELTIMEOUT);
1832 				return (CMD_COMPLETE);
1833 			}
1834 		}
1835 #endif
1836 		/*
1837 		 * Check for f/w being in ready state. If the f/w
1838 		 * isn't in ready state, then we don't know our
1839 		 * loop ID and the f/w hasn't completed logging
1840 		 * into all targets on the loop. If this is the
1841 		 * case, then bounce the command. We pretend this is
1842 		 * a SELECTION TIMEOUT error if we've never gone to
1843 		 * FW_READY state at all- in this case we may not
1844 		 * be hooked to a loop at all and we shouldn't hang
1845 		 * the machine for this. Otherwise, defer this command
1846 		 * until later.
1847 		 */
1848 		if (fcp->isp_fwstate != FW_READY) {
1849 			if (isp_fclink_test(isp, FC_FW_READY_DELAY)) {
1850 				XS_SETERR(xs, HBA_SELTIMEOUT);
1851 				if (fcp->loop_seen_once) {
1852 					return (CMD_RQLATER);
1853 				} else {
1854 					return (CMD_COMPLETE);
1855 				}
1856 			}
1857 		}
1858 
1859 		/*
1860 		 * If our loop state is such that we haven't yet received
1861 		 * a "Port Database Changed" notification (after a LIP or
1862 		 * a Loop Reset or firmware initialization), then defer
1863 		 * sending commands for a little while.
1864 		 */
1865 		if (fcp->isp_loopstate < LOOP_PDB_RCVD) {
1866 			XS_SETERR(xs, HBA_SELTIMEOUT);
1867 			return (CMD_RQLATER);
1868 		}
1869 
1870 		/*
1871 		 * If our loop state is now such that we've just now
1872 		 * received a Port Database Change notification, then
1873 		 * we have to go off and (re)synchronize our port
1874 		 * database.
1875 		 */
1876 		if (fcp->isp_loopstate == LOOP_PDB_RCVD) {
1877 			if (isp_pdb_sync(isp, target)) {
1878 				XS_SETERR(xs, HBA_SELTIMEOUT);
1879 				return (CMD_COMPLETE);
1880 			}
1881 		}
1882 
1883 		/*
1884 		 * Now check whether we should even think about pursuing this.
1885 		 */
1886 		lp = &fcp->portdb[target];
1887 		if (lp->valid == 0) {
1888 			XS_SETERR(xs, HBA_SELTIMEOUT);
1889 			return (CMD_COMPLETE);
1890 		}
1891 		if ((lp->roles & (SVC3_TGT_ROLE >> SVC3_ROLE_SHIFT)) == 0) {
1892 			IDPRINTF(3, ("%s: target %d is not a target\n",
1893 			    isp->isp_name, target));
1894 			XS_SETERR(xs, HBA_SELTIMEOUT);
1895 			return (CMD_COMPLETE);
1896 		}
1897 		/*
1898 		 * Now turn target into what the actual loop ID is.
1899 		 */
1900 		target = lp->loopid;
1901 	}
1902 
1903 	/*
1904 	 * Next check to see if any HBA or Device
1905 	 * parameters need to be updated.
1906 	 */
1907 	if (isp->isp_update != 0) {
1908 		isp_update(isp);
1909 	}
1910 
1911 	if (isp_getrqentry(isp, &iptr, &optr, (void **) &reqp)) {
1912 		IDPRINTF(1, ("%s: Request Queue Overflow\n", isp->isp_name));
1913 		XS_SETERR(xs, HBA_BOTCH);
1914 		return (CMD_EAGAIN);
1915 	}
1916 
1917 	/*
1918 	 * Now see if we need to synchronize the ISP with respect to anything.
1919 	 * We do dual duty here (cough) for synchronizing for busses other
1920 	 * than which we got here to send a command to.
1921 	 */
1922 	if (isp->isp_sendmarker) {
1923 		u_int8_t n = (IS_12X0(isp)? 2: 1);
1924 		/*
1925 		 * Check ports to send markers for...
1926 		 */
1927 		for (i = 0; i < n; i++) {
1928 			if ((isp->isp_sendmarker & (1 << i)) == 0) {
1929 				continue;
1930 			}
1931 			MEMZERO((void *) reqp, sizeof (*reqp));
1932 			reqp->req_header.rqs_entry_count = 1;
1933 			reqp->req_header.rqs_entry_type = RQSTYPE_MARKER;
1934 			reqp->req_modifier = SYNC_ALL;
1935 			reqp->req_target = i << 7;	/* insert bus number */
1936 			ISP_SWIZZLE_REQUEST(isp, reqp);
1937 			MemoryBarrier();
1938 			ISP_ADD_REQUEST(isp, iptr);
1939 
1940 			if (isp_getrqentry(isp, &iptr, &optr, (void **)&reqp)) {
1941 				IDPRINTF(1, ("%s: Request Queue Overflow+\n",
1942 				    isp->isp_name));
1943 				XS_SETERR(xs, HBA_BOTCH);
1944 				return (CMD_EAGAIN);
1945 			}
1946 		}
1947 	}
1948 
1949 	MEMZERO((void *) reqp, UZSIZE);
1950 	reqp->req_header.rqs_entry_count = 1;
1951 	if (IS_FC(isp)) {
1952 		reqp->req_header.rqs_entry_type = RQSTYPE_T2RQS;
1953 	} else {
1954 		reqp->req_header.rqs_entry_type = RQSTYPE_REQUEST;
1955 	}
1956 	reqp->req_header.rqs_flags = 0;
1957 	reqp->req_header.rqs_seqno = 0;
1958 	if (IS_FC(isp)) {
1959 		/*
1960 		 * See comment in isp_intr
1961 		 */
1962 		XS_RESID(xs) = 0;
1963 
1964 		/*
1965 		 * Fibre Channel always requires some kind of tag.
1966 		 * The Qlogic drivers seem be happy not to use a tag,
1967 		 * but this breaks for some devices (IBM drives).
1968 		 */
1969 		if (XS_CANTAG(xs)) {
1970 			t2reqp->req_flags = XS_KINDOF_TAG(xs);
1971 		} else {
1972 			if (XS_CDBP(xs)[0] == 0x3)	/* REQUEST SENSE */
1973 				t2reqp->req_flags = REQFLAG_HTAG;
1974 			else
1975 				t2reqp->req_flags = REQFLAG_OTAG;
1976 		}
1977 	} else {
1978 		sdparam *sdp = (sdparam *)isp->isp_param;
1979 		if ((sdp->isp_devparam[target].cur_dflags & DPARM_TQING) &&
1980 		    XS_CANTAG(xs)) {
1981 			reqp->req_flags = XS_KINDOF_TAG(xs);
1982 		}
1983 	}
1984 	reqp->req_target = target | (XS_CHANNEL(xs) << 7);
1985 	if (IS_SCSI(isp)) {
1986 		reqp->req_lun_trn = XS_LUN(xs);
1987 		reqp->req_cdblen = XS_CDBLEN(xs);
1988 	} else {
1989 #ifdef	ISP2100_SCCLUN
1990 		t2reqp->req_scclun = XS_LUN(xs);
1991 #else
1992 		t2reqp->req_lun_trn = XS_LUN(xs);
1993 #endif
1994 	}
1995 	MEMCPY(reqp->req_cdb, XS_CDBP(xs), XS_CDBLEN(xs));
1996 
1997 	reqp->req_time = XS_TIME(xs) / 1000;
1998 	if (reqp->req_time == 0 && XS_TIME(xs))
1999 		reqp->req_time = 1;
2000 
2001 	/*
2002 	 * Always give a bit more leeway to commands after a bus reset.
2003 	 * XXX: DOES NOT DISTINGUISH WHICH PORT MAY HAVE BEEN SYNCED
2004 	 */
2005 	if (isp->isp_sendmarker && reqp->req_time < 5) {
2006 		reqp->req_time = 5;
2007 	}
2008 	if (isp_save_xs(isp, xs, &reqp->req_handle)) {
2009 		IDPRINTF(2, ("%s: out of xflist pointers\n", isp->isp_name));
2010 		XS_SETERR(xs, HBA_BOTCH);
2011 		return (CMD_EAGAIN);
2012 	}
2013 	/*
2014 	 * Set up DMA and/or do any bus swizzling of the request entry
2015 	 * so that the Qlogic F/W understands what is being asked of it.
2016  	*/
2017 	i = ISP_DMASETUP(isp, xs, reqp, &iptr, optr);
2018 	if (i != CMD_QUEUED) {
2019 		isp_destroy_handle(isp, reqp->req_handle);
2020 		/*
2021 		 * dmasetup sets actual error in packet, and
2022 		 * return what we were given to return.
2023 		 */
2024 		return (i);
2025 	}
2026 	XS_SETERR(xs, HBA_NOERROR);
2027 	IDPRINTF(5, ("%s(%d.%d.%d): START cmd 0x%x datalen %d\n",
2028 	    isp->isp_name, XS_CHANNEL(xs), target, XS_LUN(xs),
2029 	    reqp->req_cdb[0], XS_XFRLEN(xs)));
2030 	MemoryBarrier();
2031 	ISP_ADD_REQUEST(isp, iptr);
2032 	isp->isp_nactive++;
2033 	if (isp->isp_sendmarker)
2034 		isp->isp_sendmarker = 0;
2035 	return (CMD_QUEUED);
2036 #undef	reqp
2037 #undef	t2reqp
2038 }
2039 
2040 /*
2041  * isp control
2042  * Locks (ints blocked) assumed held.
2043  */
2044 
2045 int
2046 isp_control(isp, ctl, arg)
2047 	struct ispsoftc *isp;
2048 	ispctl_t ctl;
2049 	void *arg;
2050 {
2051 	ISP_SCSI_XFER_T *xs;
2052 	mbreg_t mbs;
2053 	int bus, tgt;
2054 	u_int32_t handle;
2055 
2056 	switch (ctl) {
2057 	default:
2058 		PRINTF("%s: isp_control unknown control op %x\n",
2059 		    isp->isp_name, ctl);
2060 		break;
2061 
2062 	case ISPCTL_RESET_BUS:
2063 		/*
2064 		 * Issue a bus reset.
2065 		 */
2066 		mbs.param[0] = MBOX_BUS_RESET;
2067 		if (IS_SCSI(isp)) {
2068 			mbs.param[1] =
2069 			    ((sdparam *) isp->isp_param)->isp_bus_reset_delay;
2070 			if (mbs.param[1] < 2)
2071 				mbs.param[1] = 2;
2072 			bus = *((int *) arg);
2073 			mbs.param[2] = bus;
2074 		} else {
2075 			mbs.param[1] = 10;
2076 			mbs.param[2] = 0;
2077 			bus = 0;
2078 		}
2079 		isp->isp_sendmarker = 1 << bus;
2080 		isp_mboxcmd(isp, &mbs);
2081 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
2082 			isp_dumpregs(isp, "isp_control SCSI bus reset failed");
2083 			break;
2084 		}
2085 		PRINTF("%s: driver initiated bus reset of bus %d\n",
2086 		    isp->isp_name, bus);
2087 		return (0);
2088 
2089 	case ISPCTL_RESET_DEV:
2090 		tgt = (*((int *) arg)) & 0xffff;
2091 		bus = (*((int *) arg)) >> 16;
2092 		mbs.param[0] = MBOX_ABORT_TARGET;
2093 		mbs.param[1] = (tgt << 8) | (bus << 15);
2094 		mbs.param[2] = 3;	/* 'delay', in seconds */
2095 		isp_mboxcmd(isp, &mbs);
2096 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
2097 			PRINTF("%s: isp_control MBOX_RESET_DEV failure (code "
2098 			    "%x)\n", isp->isp_name, mbs.param[0]);
2099 			break;
2100 		}
2101 		PRINTF("%s: Target %d on Bus %d Reset Succeeded\n",
2102 		    isp->isp_name, tgt, bus);
2103 		isp->isp_sendmarker = 1 << bus;
2104 		return (0);
2105 
2106 	case ISPCTL_ABORT_CMD:
2107 		xs = (ISP_SCSI_XFER_T *) arg;
2108 		handle = isp_find_handle(isp, xs);
2109 		if (handle == 0) {
2110 			PRINTF("%s: isp_control- cannot find command to abort "
2111 			    "in active list\n", isp->isp_name);
2112 			break;
2113 		}
2114 		bus = XS_CHANNEL(xs);
2115 		mbs.param[0] = MBOX_ABORT;
2116 		if (IS_FC(isp)) {
2117 #ifdef	ISP2100_SCCLUN
2118 			mbs.param[1] = XS_TGT(xs) << 8;
2119 			mbs.param[4] = 0;
2120 			mbs.param[5] = 0;
2121 			mbs.param[6] = XS_LUN(xs);
2122 #else
2123 			mbs.param[1] = XS_TGT(xs) << 8 | XS_LUN(xs);
2124 #endif
2125 		} else {
2126 			mbs.param[1] =
2127 			    (bus << 15) | (XS_TGT(xs) << 8) | XS_LUN(xs);
2128 		}
2129 		mbs.param[2] = handle >> 16;
2130 		mbs.param[3] = handle & 0xffff;
2131 		isp_mboxcmd(isp, &mbs);
2132 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
2133 			PRINTF("%s: isp_control MBOX_ABORT failure (code %x)\n",
2134 			    isp->isp_name, mbs.param[0]);
2135 			break;
2136 		}
2137 		PRINTF("%s: command for target %d lun %d was aborted\n",
2138 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2139 		return (0);
2140 
2141 	case ISPCTL_UPDATE_PARAMS:
2142 		isp_update(isp);
2143 		return (0);
2144 
2145 	case ISPCTL_FCLINK_TEST:
2146 		return (isp_fclink_test(isp, FC_FW_READY_DELAY));
2147 #ifdef	ISP_TARGET_MODE
2148 	case ISPCTL_ENABLE_LUN:
2149 		return (isp_modify_lun, 1, arg));
2150 
2151 	case ISPCTL_MODIFY_LUN:
2152 		return (isp_modify_lun, 0, arg));
2153 #endif
2154 	}
2155 	return (-1);
2156 }
2157 
2158 /*
2159  * Interrupt Service Routine(s).
2160  *
2161  * External (OS) framework has done the appropriate locking,
2162  * and the locking will be held throughout this function.
2163  */
2164 
2165 int
2166 isp_intr(arg)
2167 	void *arg;
2168 {
2169 	ISP_SCSI_XFER_T *complist[RESULT_QUEUE_LEN], *xs;
2170 	struct ispsoftc *isp = arg;
2171 	u_int16_t iptr, optr;
2172 	u_int16_t isr, isrb, sema;
2173 	int i, nlooked = 0, ndone = 0;
2174 
2175 	/*
2176 	 * Well, if we've disabled interrupts, we may get a case where
2177 	 * isr isn't set, but sema is. In any case, debounce isr reads.
2178 	 */
2179 	do {
2180 		isr = ISP_READ(isp, BIU_ISR);
2181 		isrb = ISP_READ(isp, BIU_ISR);
2182 	} while (isr != isrb);
2183 	sema = ISP_READ(isp, BIU_SEMA) & 0x1;
2184 	IDPRINTF(5, ("%s: isp_intr isr %x sem %x\n", isp->isp_name, isr, sema));
2185 	if (isr == 0) {
2186 		return (0);
2187 	}
2188 	if (!INT_PENDING(isp, isr)) {
2189 		IDPRINTF(4, ("%s: isp_intr isr=%x\n", isp->isp_name, isr));
2190 		return (0);
2191 	}
2192 	if (isp->isp_state != ISP_RUNSTATE) {
2193 		IDPRINTF(3, ("%s: interrupt (isr=%x,sema=%x) when not ready\n",
2194 		    isp->isp_name, isr, sema));
2195 		ISP_WRITE(isp, INMAILBOX5, ISP_READ(isp, OUTMAILBOX5));
2196 		ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
2197 		ISP_WRITE(isp, BIU_SEMA, 0);
2198 		ENABLE_INTS(isp);
2199 		return (1);
2200 	}
2201 
2202 	if (sema) {
2203 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
2204 		if (mbox & 0x4000) {
2205 			IDPRINTF(3, ("%s: Command Mbox 0x%x\n",
2206 			    isp->isp_name, mbox));
2207 		} else {
2208 			u_int32_t fhandle = isp_parse_async(isp, (int) mbox);
2209 			IDPRINTF(3, ("%s: Async Mbox 0x%x\n",
2210 			    isp->isp_name, mbox));
2211 			if (fhandle > 0) {
2212 				isp_fastpost_complete(isp, fhandle);
2213 			}
2214 		}
2215 		ISP_WRITE(isp, BIU_SEMA, 0);
2216 		ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
2217 		ENABLE_INTS(isp);
2218 		return (1);
2219 	}
2220 
2221 	/*
2222 	 * You *must* read OUTMAILBOX5 prior to clearing the RISC interrupt.
2223 	 */
2224 	optr = isp->isp_residx;
2225 	iptr = ISP_READ(isp, OUTMAILBOX5);
2226 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
2227 	if (optr == iptr) {
2228 		IDPRINTF(4, ("why intr? isr %x iptr %x optr %x\n",
2229 		    isr, optr, iptr));
2230 	}
2231 
2232 	while (optr != iptr) {
2233 		ispstatusreq_t *sp;
2234 		u_int16_t oop;
2235 		int buddaboom = 0;
2236 
2237 		sp = (ispstatusreq_t *) ISP_QUEUE_ENTRY(isp->isp_result, optr);
2238 		oop = optr;
2239 		optr = ISP_NXT_QENTRY(optr, RESULT_QUEUE_LEN);
2240 		nlooked++;
2241 		MemoryBarrier();
2242 		/*
2243 		 * Do any appropriate unswizzling of what the Qlogic f/w has
2244 		 * written into memory so it makes sense to us.
2245 		 */
2246 		ISP_UNSWIZZLE_RESPONSE(isp, sp);
2247 		if (sp->req_header.rqs_entry_type != RQSTYPE_RESPONSE) {
2248 			if (isp_handle_other_response(isp, sp, &optr) == 0) {
2249 				ISP_WRITE(isp, INMAILBOX5, optr);
2250 				continue;
2251 			}
2252 			/*
2253 			 * It really has to be a bounced request just copied
2254 			 * from the request queue to the response queue. If
2255 			 * not, something bad has happened.
2256 			 */
2257 			if (sp->req_header.rqs_entry_type != RQSTYPE_REQUEST) {
2258 				ISP_WRITE(isp, INMAILBOX5, optr);
2259 				PRINTF("%s: not RESPONSE in RESPONSE Queue "
2260 				    "(type 0x%x) @ idx %d (next %d)\n",
2261 				    isp->isp_name,
2262 				    sp->req_header.rqs_entry_type, oop, optr);
2263 				continue;
2264 			}
2265 			buddaboom = 1;
2266 		}
2267 
2268 		if (sp->req_header.rqs_flags & 0xf) {
2269 #define	_RQS_OFLAGS	\
2270 	~(RQSFLAG_CONTINUATION|RQSFLAG_FULL|RQSFLAG_BADHEADER|RQSFLAG_BADPACKET)
2271 			if (sp->req_header.rqs_flags & RQSFLAG_CONTINUATION) {
2272 				IDPRINTF(3, ("%s: continuation segment\n",
2273 				    isp->isp_name));
2274 				ISP_WRITE(isp, INMAILBOX5, optr);
2275 				continue;
2276 			}
2277 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
2278 				IDPRINTF(2, ("%s: internal queues full\n",
2279 				    isp->isp_name));
2280 				/*
2281 				 * We'll synthesize a QUEUE FULL message below.
2282 				 */
2283 			}
2284 			if (sp->req_header.rqs_flags & RQSFLAG_BADHEADER) {
2285 				PRINTF("%s: bad header\n", isp->isp_name);
2286 				buddaboom++;
2287 			}
2288 			if (sp->req_header.rqs_flags & RQSFLAG_BADPACKET) {
2289 				PRINTF("%s: bad request packet\n",
2290 				    isp->isp_name);
2291 				buddaboom++;
2292 			}
2293 			if (sp->req_header.rqs_flags & _RQS_OFLAGS) {
2294 				PRINTF("%s: unknown flags in response (0x%x)\n",
2295 				    isp->isp_name, sp->req_header.rqs_flags);
2296 				buddaboom++;
2297 			}
2298 #undef	_RQS_OFLAGS
2299 		}
2300 		if (sp->req_handle > isp->isp_maxcmds || sp->req_handle < 1) {
2301 			PRINTF("%s: bad request handle %d\n", isp->isp_name,
2302 			    sp->req_handle);
2303 			ISP_WRITE(isp, INMAILBOX5, optr);
2304 			continue;
2305 		}
2306 		xs = isp_find_xs(isp, sp->req_handle);
2307 		if (xs == NULL) {
2308 			PRINTF("%s: NULL xs in xflist (handle 0x%x)\n",
2309 			    isp->isp_name, sp->req_handle);
2310 			ISP_WRITE(isp, INMAILBOX5, optr);
2311 			continue;
2312 		}
2313 		isp_destroy_handle(isp, sp->req_handle);
2314 		if (sp->req_status_flags & RQSTF_BUS_RESET) {
2315 			isp->isp_sendmarker |= (1 << XS_CHANNEL(xs));
2316 		}
2317 		if (buddaboom) {
2318 			XS_SETERR(xs, HBA_BOTCH);
2319 		}
2320 		XS_STS(xs) = sp->req_scsi_status & 0xff;
2321 		if (IS_SCSI(isp)) {
2322 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
2323 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
2324 					XS_SNSLEN(xs));
2325 				XS_SNS_IS_VALID(xs);
2326 			}
2327 			/*
2328 			 * A new synchronous rate was negotiated for this
2329 			 * target. Mark state such that we'll go look up
2330 			 * that which has changed later.
2331 			 */
2332 			if (sp->req_status_flags & RQSTF_NEGOTIATION) {
2333 				sdparam *sdp = isp->isp_param;
2334 				sdp += XS_CHANNEL(xs);
2335 				sdp->isp_devparam[XS_TGT(xs)].dev_refresh = 1;
2336 				isp->isp_update |= (1 << XS_CHANNEL(xs));
2337 			}
2338 		} else {
2339 			if (XS_STS(xs) == SCSI_CHECK) {
2340 				XS_SNS_IS_VALID(xs);
2341 				MEMCPY(XS_SNSP(xs), sp->req_sense_data,
2342 					XS_SNSLEN(xs));
2343 				sp->req_state_flags |= RQSF_GOT_SENSE;
2344 			}
2345 		}
2346 		if (XS_NOERR(xs) && XS_STS(xs) == SCSI_BUSY) {
2347 			XS_SETERR(xs, HBA_TGTBSY);
2348 		}
2349 
2350 		if (sp->req_header.rqs_entry_type == RQSTYPE_RESPONSE) {
2351 			if (XS_NOERR(xs)) {
2352 			    if (sp->req_completion_status != RQCS_COMPLETE) {
2353 				isp_parse_status(isp, sp, xs);
2354 			    } else {
2355 				XS_SETERR(xs, HBA_NOERROR);
2356 			    }
2357 			}
2358 		} else if (sp->req_header.rqs_entry_type == RQSTYPE_REQUEST) {
2359 			if (sp->req_header.rqs_flags & RQSFLAG_FULL) {
2360 				/*
2361 				 * Force Queue Full status.
2362 				 */
2363 				XS_STS(xs) = SCSI_QFULL;
2364 				XS_SETERR(xs, HBA_NOERROR);
2365 			} else if (XS_NOERR(xs)) {
2366 				XS_SETERR(xs, HBA_BOTCH);
2367 			}
2368 		} else {
2369 			PRINTF("%s: unhandled respose queue type 0x%x\n",
2370 			    isp->isp_name, sp->req_header.rqs_entry_type);
2371 			if (XS_NOERR(xs)) {
2372 				XS_SETERR(xs, HBA_BOTCH);
2373 			}
2374 		}
2375 		if (IS_SCSI(isp)) {
2376 			XS_RESID(xs) = sp->req_resid;
2377 		} else if (sp->req_scsi_status & RQCS_RU) {
2378 			XS_RESID(xs) = sp->req_resid;
2379 			IDPRINTF(4, ("%s: cnt %d rsd %d\n", isp->isp_name,
2380 				XS_XFRLEN(xs), sp->req_resid));
2381 		}
2382 		if (XS_XFRLEN(xs)) {
2383 			ISP_DMAFREE(isp, xs, sp->req_handle);
2384 		}
2385 		/*
2386 		 * XXX: If we have a check condition, but no Sense Data,
2387 		 * XXX: mark it as an error (ARQ failed). We need to
2388 		 * XXX: to do a more distinct job because there may
2389 		 * XXX: cases where ARQ is disabled.
2390 		 */
2391 		if (XS_STS(xs) == SCSI_CHECK && !(XS_IS_SNS_VALID(xs))) {
2392 			if (XS_NOERR(xs)) {
2393 				PRINTF("%s: ARQ failure for target %d lun %d\n",
2394 				    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2395 				XS_SETERR(xs, HBA_ARQFAIL);
2396 			}
2397 		}
2398 		if ((isp->isp_dblev >= 5) ||
2399 		    (isp->isp_dblev > 2 && !XS_NOERR(xs))) {
2400 			PRINTF("%s(%d.%d): FIN dl%d resid%d STS %x",
2401 			    isp->isp_name, XS_TGT(xs), XS_LUN(xs),
2402 			    XS_XFRLEN(xs), XS_RESID(xs), XS_STS(xs));
2403 			if (sp->req_state_flags & RQSF_GOT_SENSE) {
2404 				PRINTF(" Skey: %x", XS_SNSKEY(xs));
2405 				if (!(XS_IS_SNS_VALID(xs))) {
2406 					PRINTF(" BUT NOT SET");
2407 				}
2408 			}
2409 			PRINTF(" XS_ERR=0x%x\n", (unsigned int) XS_ERR(xs));
2410 		}
2411 
2412 		if (isp->isp_nactive > 0)
2413 		    isp->isp_nactive--;
2414 		complist[ndone++] = xs;	/* defer completion call until later */
2415 	}
2416 
2417 	/*
2418 	 * If we looked at any commands, then it's valid to find out
2419 	 * what the outpointer is. It also is a trigger to update the
2420 	 * ISP's notion of what we've seen so far.
2421 	 */
2422 	if (nlooked) {
2423 		ISP_WRITE(isp, INMAILBOX5, optr);
2424 		isp->isp_reqodx = ISP_READ(isp, OUTMAILBOX4);
2425 	}
2426 	isp->isp_residx = optr;
2427 	for (i = 0; i < ndone; i++) {
2428 		xs = complist[i];
2429 		if (xs) {
2430 			XS_CMD_DONE(xs);
2431 		}
2432 	}
2433 	ENABLE_INTS(isp);
2434 	return (1);
2435 }
2436 
2437 /*
2438  * Support routines.
2439  */
2440 
2441 static int
2442 isp_parse_async(isp, mbox)
2443 	struct ispsoftc *isp;
2444 	int mbox;
2445 {
2446 	int bus;
2447 	u_int32_t fast_post_handle = 0;
2448 
2449 	/*
2450  	 * It is not documented anywhere that bus is always in OUTMAILBOX6
2451 	 * for dual bus cards- and we don't have the h/w to prove it either,
2452 	 * So we'll just assume......
2453 	 */
2454 	if (IS_1080(isp) || IS_12X0(isp)) {
2455 		bus = ISP_READ(isp, OUTMAILBOX6);
2456 	} else {
2457 		bus = 0;
2458 	}
2459 
2460 	switch (mbox) {
2461 	case MBOX_COMMAND_COMPLETE:	/* sometimes these show up */
2462 		break;
2463 	case ASYNC_BUS_RESET:
2464 		isp->isp_sendmarker = (1 << bus);
2465 #ifdef	ISP_TARGET_MODE
2466 		isp_target_async(isp, bus, ASYNC_BUS_RESET);
2467 #endif
2468 		isp_async(isp, ISPASYNC_BUS_RESET, &bus);
2469 		break;
2470 	case ASYNC_SYSTEM_ERROR:
2471 		mbox = ISP_READ(isp, OUTMAILBOX1);
2472 		PRINTF("%s: Internal FW Error @ RISC Addr 0x%x\n",
2473 		    isp->isp_name, mbox);
2474 		isp_restart(isp);
2475 		/* no point continuing after this */
2476 		return (-1);
2477 
2478 	case ASYNC_RQS_XFER_ERR:
2479 		PRINTF("%s: Request Queue Transfer Error\n", isp->isp_name);
2480 		break;
2481 
2482 	case ASYNC_RSP_XFER_ERR:
2483 		PRINTF("%s: Response Queue Transfer Error\n", isp->isp_name);
2484 		break;
2485 
2486 	case ASYNC_QWAKEUP:
2487 		/*
2488 		 * We've just been notified that the Queue has woken up.
2489 		 * We don't need to be chatty about this- just unlatch things
2490 		 * and move on.
2491 		 */
2492 		mbox = ISP_READ(isp, OUTMAILBOX4);
2493 		break;
2494 
2495 	case ASYNC_TIMEOUT_RESET:
2496 		PRINTF("%s: timeout initiated SCSI bus reset of bus %d\n",
2497 		    isp->isp_name, bus);
2498 		isp->isp_sendmarker = (1 << bus);
2499 #ifdef	ISP_TARGET_MODE
2500 		isp_target_async(isp, bus, ASYNC_TIMEOUT_RESET);
2501 #endif
2502 		break;
2503 
2504 	case ASYNC_DEVICE_RESET:
2505 		PRINTF("%s: device reset on bus %d\n", isp->isp_name, bus);
2506 		isp->isp_sendmarker = 1 << bus;
2507 #ifdef	ISP_TARGET_MODE
2508 		isp_target_async(isp, bus, ASYNC_DEVICE_RESET);
2509 #endif
2510 		break;
2511 
2512 	case ASYNC_EXTMSG_UNDERRUN:
2513 		PRINTF("%s: extended message underrun\n", isp->isp_name);
2514 		break;
2515 
2516 	case ASYNC_SCAM_INT:
2517 		PRINTF("%s: SCAM interrupt\n", isp->isp_name);
2518 		break;
2519 
2520 	case ASYNC_HUNG_SCSI:
2521 		PRINTF("%s: stalled SCSI Bus after DATA Overrun\n",
2522 		    isp->isp_name);
2523 		/* XXX: Need to issue SCSI reset at this point */
2524 		break;
2525 
2526 	case ASYNC_KILLED_BUS:
2527 		PRINTF("%s: SCSI Bus reset after DATA Overrun\n",
2528 		    isp->isp_name);
2529 		break;
2530 
2531 	case ASYNC_BUS_TRANSIT:
2532 		mbox = ISP_READ(isp, OUTMAILBOX2);
2533 		switch (mbox & 0x1c00) {
2534 		case SXP_PINS_LVD_MODE:
2535 			PRINTF("%s: Transition to LVD mode\n", isp->isp_name);
2536 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
2537 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
2538 			((sdparam *)isp->isp_param)->isp_lvdmode = 1;
2539 			break;
2540 		case SXP_PINS_HVD_MODE:
2541 			PRINTF("%s: Transition to Differential mode\n",
2542 			    isp->isp_name);
2543 			((sdparam *)isp->isp_param)->isp_diffmode = 1;
2544 			((sdparam *)isp->isp_param)->isp_ultramode = 0;
2545 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
2546 			break;
2547 		case SXP_PINS_SE_MODE:
2548 			PRINTF("%s: Transition to Single Ended mode\n",
2549 			    isp->isp_name);
2550 			((sdparam *)isp->isp_param)->isp_diffmode = 0;
2551 			((sdparam *)isp->isp_param)->isp_ultramode = 1;
2552 			((sdparam *)isp->isp_param)->isp_lvdmode = 0;
2553 			break;
2554 		default:
2555 			PRINTF("%s: Transition to unknown mode 0x%x\n",
2556 			    isp->isp_name, mbox);
2557 			break;
2558 		}
2559 		/*
2560 		 * XXX: Set up to renegotiate again!
2561 		 */
2562 		/* Can only be for a 1080... */
2563 		isp->isp_sendmarker = (1 << bus);
2564 		break;
2565 
2566 	case ASYNC_CMD_CMPLT:
2567 		fast_post_handle = (ISP_READ(isp, OUTMAILBOX2) << 16) |
2568 		    ISP_READ(isp, OUTMAILBOX1);
2569 		IDPRINTF(3, ("%s: fast post completion of %u\n", isp->isp_name,
2570 		    fast_post_handle));
2571 		break;
2572 
2573 	case ASYNC_CTIO_DONE:
2574 		/* Should only occur when Fast Posting Set for 2100s */
2575 		PRINTF("%s: CTIO done\n", isp->isp_name);
2576 		break;
2577 
2578 	case ASYNC_LIP_OCCURRED:
2579 		((fcparam *) isp->isp_param)->isp_lipseq =
2580 		    ISP_READ(isp, OUTMAILBOX1);
2581 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
2582 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
2583 		isp->isp_sendmarker = 1;
2584 		isp_mark_getpdb_all(isp);
2585 		IDPRINTF(1, ("%s: LIP occurred\n", isp->isp_name));
2586 		break;
2587 
2588 	case ASYNC_LOOP_UP:
2589 		isp->isp_sendmarker = 1;
2590 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
2591 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
2592 		isp_mark_getpdb_all(isp);
2593 		isp_async(isp, ISPASYNC_LOOP_UP, NULL);
2594 		break;
2595 
2596 	case ASYNC_LOOP_DOWN:
2597 		isp->isp_sendmarker = 1;
2598 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
2599 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
2600 		isp_mark_getpdb_all(isp);
2601 		isp_async(isp, ISPASYNC_LOOP_DOWN, NULL);
2602 		break;
2603 
2604 	case ASYNC_LOOP_RESET:
2605 		isp->isp_sendmarker = 1 << bus;
2606 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
2607 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
2608 		isp_mark_getpdb_all(isp);
2609 		PRINTF("%s: Loop RESET\n", isp->isp_name);
2610 #ifdef	ISP_TARGET_MODE
2611 		isp_target_async(isp, bus, ASYNC_LOOP_RESET);
2612 #endif
2613 		break;
2614 
2615 	case ASYNC_PDB_CHANGED:
2616 		isp->isp_sendmarker = 1;
2617 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
2618 		isp_mark_getpdb_all(isp);
2619 		IDPRINTF(2, ("%s: Port Database Changed\n", isp->isp_name));
2620 		break;
2621 
2622 	case ASYNC_CHANGE_NOTIFY:
2623 		isp_mark_getpdb_all(isp);
2624 		/*
2625 		 * Not correct, but it will force us to rescan the loop.
2626 		 */
2627 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
2628 		isp_async(isp, ISPASYNC_CHANGE_NOTIFY, NULL);
2629 		break;
2630 
2631 	default:
2632 		PRINTF("%s: unknown async code 0x%x\n", isp->isp_name, mbox);
2633 		break;
2634 	}
2635 	return (fast_post_handle);
2636 }
2637 
2638 /*
2639  * Handle other response entries. A pointer to the request queue output
2640  * index is here in case we want to eat several entries at once, although
2641  * this is not used currently.
2642  */
2643 
2644 static int
2645 isp_handle_other_response(isp, sp, optrp)
2646 	struct ispsoftc *isp;
2647 	ispstatusreq_t *sp;
2648 	u_int16_t *optrp;
2649 {
2650 	switch (sp->req_header.rqs_entry_type) {
2651 	case RQSTYPE_ATIO:
2652 	case RQSTYPE_CTIO0:
2653 	case RQSTYPE_ENABLE_LUN:
2654 	case RQSTYPE_MODIFY_LUN:
2655 	case RQSTYPE_NOTIFY:
2656 	case RQSTYPE_NOTIFY_ACK:
2657 	case RQSTYPE_CTIO1:
2658 	case RQSTYPE_ATIO2:
2659 	case RQSTYPE_CTIO2:
2660 	case RQSTYPE_CTIO3:
2661 #ifdef	ISP_TARGET_MODE
2662 		return (isp_target_entry(isp, sp));
2663 #else
2664 		/* FALLTHROUGH */
2665 #endif
2666 	case RQSTYPE_REQUEST:
2667 	default:
2668 		PRINTF("%s: unhandled response type 0x%x\n", isp->isp_name,
2669 		    sp->req_header.rqs_entry_type);
2670 		return (-1);
2671 	}
2672 }
2673 
2674 static void
2675 isp_parse_status(isp, sp, xs)
2676 	struct ispsoftc *isp;
2677 	ispstatusreq_t *sp;
2678 	ISP_SCSI_XFER_T *xs;
2679 {
2680 	switch (sp->req_completion_status) {
2681 	case RQCS_COMPLETE:
2682 		XS_SETERR(xs, HBA_NOERROR);
2683 		return;
2684 
2685 	case RQCS_INCOMPLETE:
2686 		if ((sp->req_state_flags & RQSF_GOT_TARGET) == 0) {
2687 			IDPRINTF(3, ("%s: Selection Timeout for target %d\n",
2688 			    isp->isp_name, XS_TGT(xs)));
2689 			XS_SETERR(xs, HBA_SELTIMEOUT);
2690 			return;
2691 		}
2692 		PRINTF("%s: command incomplete for target %d lun %d, state "
2693 		    "0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
2694 		    sp->req_state_flags);
2695 		break;
2696 
2697 	case RQCS_DMA_ERROR:
2698 		PRINTF("%s: DMA error for command on target %d, lun %d\n",
2699 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2700 		break;
2701 
2702 	case RQCS_TRANSPORT_ERROR:
2703 		PRINTF("%s: transport error\n", isp->isp_name);
2704 		isp_prtstst(sp);
2705 		break;
2706 
2707 	case RQCS_RESET_OCCURRED:
2708 		IDPRINTF(2, ("%s: bus reset destroyed command for target %d "
2709 		    "lun %d\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs)));
2710 		/*
2711 		 * XXX: Get port number for bus
2712 		 */
2713 		isp->isp_sendmarker = 3;
2714 		XS_SETERR(xs, HBA_BUSRESET);
2715 		return;
2716 
2717 	case RQCS_ABORTED:
2718 		PRINTF("%s: command aborted for target %d lun %d\n",
2719 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2720 		/*
2721 		 * XXX: Get port number for bus
2722 		 */
2723 		isp->isp_sendmarker = 3;
2724 		XS_SETERR(xs, HBA_ABORTED);
2725 		return;
2726 
2727 	case RQCS_TIMEOUT:
2728 		IDPRINTF(2, ("%s: command timed out for target %d lun %d\n",
2729 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs)));
2730 		XS_SETERR(xs, HBA_CMDTIMEOUT);
2731 		return;
2732 
2733 	case RQCS_DATA_OVERRUN:
2734 		if (IS_FC(isp)) {
2735 			XS_RESID(xs) = sp->req_resid;
2736 			break;
2737 		}
2738 		XS_SETERR(xs, HBA_DATAOVR);
2739 		return;
2740 
2741 	case RQCS_COMMAND_OVERRUN:
2742 		PRINTF("%s: command overrun for command on target %d, lun %d\n",
2743 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2744 		break;
2745 
2746 	case RQCS_STATUS_OVERRUN:
2747 		PRINTF("%s: status overrun for command on target %d, lun %d\n",
2748 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2749 		break;
2750 
2751 	case RQCS_BAD_MESSAGE:
2752 		PRINTF("%s: message not COMMAND COMPLETE after status on "
2753 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
2754 		    XS_LUN(xs));
2755 		break;
2756 
2757 	case RQCS_NO_MESSAGE_OUT:
2758 		PRINTF("%s: No MESSAGE OUT phase after selection on "
2759 		    "target %d, lun %d\n", isp->isp_name, XS_TGT(xs),
2760 		    XS_LUN(xs));
2761 		break;
2762 
2763 	case RQCS_EXT_ID_FAILED:
2764 		PRINTF("%s: EXTENDED IDENTIFY failed on target %d, lun %d\n",
2765 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2766 		break;
2767 
2768 	case RQCS_IDE_MSG_FAILED:
2769 		PRINTF("%s: target %d lun %d rejected INITIATOR DETECTED "
2770 		    "ERROR message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2771 		break;
2772 
2773 	case RQCS_ABORT_MSG_FAILED:
2774 		PRINTF("%s: target %d lun %d rejected ABORT message\n",
2775 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2776 		break;
2777 
2778 	case RQCS_REJECT_MSG_FAILED:
2779 		PRINTF("%s: target %d lun %d rejected MESSAGE REJECT message\n",
2780 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2781 		break;
2782 
2783 	case RQCS_NOP_MSG_FAILED:
2784 		PRINTF("%s: target %d lun %d rejected NOP message\n",
2785 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2786 		break;
2787 
2788 	case RQCS_PARITY_ERROR_MSG_FAILED:
2789 		PRINTF("%s: target %d lun %d rejected MESSAGE PARITY ERROR "
2790 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2791 		break;
2792 
2793 	case RQCS_DEVICE_RESET_MSG_FAILED:
2794 		PRINTF("%s: target %d lun %d rejected BUS DEVICE RESET "
2795 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2796 		break;
2797 
2798 	case RQCS_ID_MSG_FAILED:
2799 		PRINTF("%s: target %d lun %d rejected IDENTIFY "
2800 		    "message\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2801 		break;
2802 
2803 	case RQCS_UNEXP_BUS_FREE:
2804 		PRINTF("%s: target %d lun %d had an unexpected bus free\n",
2805 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2806 		break;
2807 
2808 	case RQCS_DATA_UNDERRUN:
2809 		if (IS_FC(isp)) {
2810 			XS_RESID(xs) = sp->req_resid;
2811 			/* an UNDERRUN is not a botch ??? */
2812 		}
2813 		XS_SETERR(xs, HBA_NOERROR);
2814 		return;
2815 
2816 	case RQCS_XACT_ERR1:
2817 		PRINTF("%s: HBA attempted queued transaction with disconnect "
2818 		    "not set for target %d lun %d\n", isp->isp_name, XS_TGT(xs),
2819 		    XS_LUN(xs));
2820 		break;
2821 
2822 	case RQCS_XACT_ERR2:
2823 		PRINTF("%s: HBA attempted queued transaction to target "
2824 		    "routine %d on target %d\n", isp->isp_name, XS_LUN(xs),
2825 		    XS_TGT(xs));
2826 		break;
2827 
2828 	case RQCS_XACT_ERR3:
2829 		PRINTF("%s: HBA attempted queued transaction for target %d lun "
2830 		    "%d when queueing disabled\n", isp->isp_name, XS_TGT(xs),
2831 		    XS_LUN(xs));
2832 		break;
2833 
2834 	case RQCS_BAD_ENTRY:
2835 		PRINTF("%s: invalid IOCB entry type detected\n", isp->isp_name);
2836 		break;
2837 
2838 	case RQCS_QUEUE_FULL:
2839 		IDPRINTF(3, ("%s: internal queues full for target %d lun %d "
2840 		    "status 0x%x\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs),
2841 		    XS_STS(xs)));
2842 		/*
2843 		 * If QFULL or some other status byte is set, then this
2844 		 * isn't an error, per se.
2845 		 */
2846 		if (XS_STS(xs) != 0) {
2847 			XS_SETERR(xs, HBA_NOERROR);
2848 			return;
2849 		}
2850 		break;
2851 
2852 	case RQCS_PHASE_SKIPPED:
2853 		PRINTF("%s: SCSI phase skipped (e.g., COMMAND COMPLETE w/o "
2854 		    "STATUS phase) for target %d lun %d\n", isp->isp_name,
2855 		    XS_TGT(xs), XS_LUN(xs));
2856 		break;
2857 
2858 	case RQCS_ARQS_FAILED:
2859 		PRINTF("%s: Auto Request Sense failed for target %d lun %d\n",
2860 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2861 		XS_SETERR(xs, HBA_ARQFAIL);
2862 		return;
2863 
2864 	case RQCS_WIDE_FAILED:
2865 		PRINTF("%s: Wide Negotiation failed for target %d lun %d\n",
2866 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2867 		if (IS_SCSI(isp)) {
2868 			sdparam *sdp = isp->isp_param;
2869 			sdp += XS_CHANNEL(xs);
2870 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_WIDE;
2871 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
2872 			isp->isp_update = XS_CHANNEL(xs)+1;
2873 		}
2874 		XS_SETERR(xs, HBA_NOERROR);
2875 		return;
2876 
2877 	case RQCS_SYNCXFER_FAILED:
2878 		PRINTF("%s: SDTR Message failed for target %d lun %d\n",
2879 		    isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2880 		if (IS_SCSI(isp)) {
2881 			sdparam *sdp = isp->isp_param;
2882 			sdp += XS_CHANNEL(xs);
2883 			sdp->isp_devparam[XS_TGT(xs)].dev_flags &= ~DPARM_SYNC;
2884 			sdp->isp_devparam[XS_TGT(xs)].dev_update = 1;
2885 			isp->isp_update = XS_CHANNEL(xs)+1;
2886 		}
2887 		break;
2888 
2889 	case RQCS_LVD_BUSERR:
2890 		PRINTF("%s: Bad LVD Bus condition while talking to target %d "
2891 		    "lun %d\n", isp->isp_name, XS_TGT(xs), XS_LUN(xs));
2892 		break;
2893 
2894 	case RQCS_PORT_UNAVAILABLE:
2895 		/*
2896 		 * No such port on the loop. Moral equivalent of SELTIMEO
2897 		 */
2898 		IDPRINTF(3, ("%s: Port Unavailable for target %d\n",
2899 		    isp->isp_name, XS_TGT(xs)));
2900 		XS_SETERR(xs, HBA_SELTIMEOUT);
2901 		return;
2902 
2903 	case RQCS_PORT_LOGGED_OUT:
2904 		/*
2905 		 * It was there (maybe)- treat as a selection timeout.
2906 		 */
2907 		IDPRINTF(2, ("%s: port logout for target %d\n",
2908 			isp->isp_name, XS_TGT(xs)));
2909 		XS_SETERR(xs, HBA_SELTIMEOUT);
2910 		return;
2911 
2912 	case RQCS_PORT_CHANGED:
2913 		PRINTF("%s: port changed for target %d\n",
2914 			isp->isp_name, XS_TGT(xs));
2915 		break;
2916 
2917 	case RQCS_PORT_BUSY:
2918 		PRINTF("%s: port busy for target %d\n",
2919 			isp->isp_name, XS_TGT(xs));
2920 		XS_SETERR(xs, HBA_TGTBSY);
2921 		return;
2922 
2923 	default:
2924 		PRINTF("%s: comp status %x\n", isp->isp_name,
2925 		    sp->req_completion_status);
2926 		break;
2927 	}
2928 	XS_SETERR(xs, HBA_BOTCH);
2929 }
2930 
2931 static void
2932 isp_fastpost_complete(isp, fph)
2933 	struct ispsoftc *isp;
2934 	u_int32_t fph;
2935 {
2936 	ISP_SCSI_XFER_T *xs;
2937 
2938 	if (fph < 1) {
2939 		return;
2940 	}
2941 	xs = isp_find_xs(isp, fph);
2942 	if (xs == NULL) {
2943 		PRINTF("%s: command for fast posting handle 0x%x not found\n",
2944 		    isp->isp_name, fph);
2945 		return;
2946 	}
2947 	isp_destroy_handle(isp, fph);
2948 
2949 	/*
2950 	 * Since we don't have a result queue entry item,
2951 	 * we must believe that SCSI status is zero and
2952 	 * that all data transferred.
2953 	 */
2954 	XS_RESID(xs) = 0;
2955 	XS_STS(xs) = 0;
2956 	if (XS_XFRLEN(xs)) {
2957 		ISP_DMAFREE(isp, xs, fph);
2958 	}
2959 	XS_CMD_DONE(xs);
2960 	if (isp->isp_nactive)
2961 		isp->isp_nactive--;
2962 }
2963 
2964 #define	HINIB(x)			((x) >> 0x4)
2965 #define	LONIB(x)			((x)  & 0xf)
2966 #define	MAKNIB(a, b)			(((a) << 4) | (b))
2967 static u_int8_t mbpcnt[] = {
2968 	MAKNIB(1, 1),	/* 0x00: MBOX_NO_OP */
2969 	MAKNIB(5, 5),	/* 0x01: MBOX_LOAD_RAM */
2970 	MAKNIB(2, 0),	/* 0x02: MBOX_EXEC_FIRMWARE */
2971 	MAKNIB(5, 5),	/* 0x03: MBOX_DUMP_RAM */
2972 	MAKNIB(3, 3),	/* 0x04: MBOX_WRITE_RAM_WORD */
2973 	MAKNIB(2, 3),	/* 0x05: MBOX_READ_RAM_WORD */
2974 	MAKNIB(6, 6),	/* 0x06: MBOX_MAILBOX_REG_TEST */
2975 	MAKNIB(2, 3),	/* 0x07: MBOX_VERIFY_CHECKSUM	*/
2976 	MAKNIB(1, 4),	/* 0x08: MBOX_ABOUT_FIRMWARE */
2977 	MAKNIB(0, 0),	/* 0x09: */
2978 	MAKNIB(0, 0),	/* 0x0a: */
2979 	MAKNIB(0, 0),	/* 0x0b: */
2980 	MAKNIB(0, 0),	/* 0x0c: */
2981 	MAKNIB(0, 0),	/* 0x0d: */
2982 	MAKNIB(1, 2),	/* 0x0e: MBOX_CHECK_FIRMWARE */
2983 	MAKNIB(0, 0),	/* 0x0f: */
2984 	MAKNIB(5, 5),	/* 0x10: MBOX_INIT_REQ_QUEUE */
2985 	MAKNIB(6, 6),	/* 0x11: MBOX_INIT_RES_QUEUE */
2986 	MAKNIB(4, 4),	/* 0x12: MBOX_EXECUTE_IOCB */
2987 	MAKNIB(2, 2),	/* 0x13: MBOX_WAKE_UP	*/
2988 	MAKNIB(1, 6),	/* 0x14: MBOX_STOP_FIRMWARE */
2989 	MAKNIB(4, 4),	/* 0x15: MBOX_ABORT */
2990 	MAKNIB(2, 2),	/* 0x16: MBOX_ABORT_DEVICE */
2991 	MAKNIB(3, 3),	/* 0x17: MBOX_ABORT_TARGET */
2992 	MAKNIB(3, 1),	/* 0x18: MBOX_BUS_RESET */
2993 	MAKNIB(2, 3),	/* 0x19: MBOX_STOP_QUEUE */
2994 	MAKNIB(2, 3),	/* 0x1a: MBOX_START_QUEUE */
2995 	MAKNIB(2, 3),	/* 0x1b: MBOX_SINGLE_STEP_QUEUE */
2996 	MAKNIB(2, 3),	/* 0x1c: MBOX_ABORT_QUEUE */
2997 	MAKNIB(2, 4),	/* 0x1d: MBOX_GET_DEV_QUEUE_STATUS */
2998 	MAKNIB(0, 0),	/* 0x1e: */
2999 	MAKNIB(1, 3),	/* 0x1f: MBOX_GET_FIRMWARE_STATUS */
3000 	MAKNIB(1, 4),	/* 0x20: MBOX_GET_INIT_SCSI_ID, MBOX_GET_LOOP_ID */
3001 	MAKNIB(1, 3),	/* 0x21: MBOX_GET_SELECT_TIMEOUT */
3002 	MAKNIB(1, 3),	/* 0x22: MBOX_GET_RETRY_COUNT	*/
3003 	MAKNIB(1, 2),	/* 0x23: MBOX_GET_TAG_AGE_LIMIT */
3004 	MAKNIB(1, 2),	/* 0x24: MBOX_GET_CLOCK_RATE */
3005 	MAKNIB(1, 2),	/* 0x25: MBOX_GET_ACT_NEG_STATE */
3006 	MAKNIB(1, 2),	/* 0x26: MBOX_GET_ASYNC_DATA_SETUP_TIME */
3007 	MAKNIB(1, 3),	/* 0x27: MBOX_GET_PCI_PARAMS */
3008 	MAKNIB(2, 4),	/* 0x28: MBOX_GET_TARGET_PARAMS */
3009 	MAKNIB(2, 4),	/* 0x29: MBOX_GET_DEV_QUEUE_PARAMS */
3010 	MAKNIB(1, 2),	/* 0x2a: MBOX_GET_RESET_DELAY_PARAMS */
3011 	MAKNIB(0, 0),	/* 0x2b: */
3012 	MAKNIB(0, 0),	/* 0x2c: */
3013 	MAKNIB(0, 0),	/* 0x2d: */
3014 	MAKNIB(0, 0),	/* 0x2e: */
3015 	MAKNIB(0, 0),	/* 0x2f: */
3016 	MAKNIB(2, 2),	/* 0x30: MBOX_SET_INIT_SCSI_ID */
3017 	MAKNIB(2, 3),	/* 0x31: MBOX_SET_SELECT_TIMEOUT */
3018 	MAKNIB(3, 3),	/* 0x32: MBOX_SET_RETRY_COUNT	*/
3019 	MAKNIB(2, 2),	/* 0x33: MBOX_SET_TAG_AGE_LIMIT */
3020 	MAKNIB(2, 2),	/* 0x34: MBOX_SET_CLOCK_RATE */
3021 	MAKNIB(2, 2),	/* 0x35: MBOX_SET_ACT_NEG_STATE */
3022 	MAKNIB(2, 2),	/* 0x36: MBOX_SET_ASYNC_DATA_SETUP_TIME */
3023 	MAKNIB(3, 3),	/* 0x37: MBOX_SET_PCI_CONTROL_PARAMS */
3024 	MAKNIB(4, 4),	/* 0x38: MBOX_SET_TARGET_PARAMS */
3025 	MAKNIB(4, 4),	/* 0x39: MBOX_SET_DEV_QUEUE_PARAMS */
3026 	MAKNIB(1, 2),	/* 0x3a: MBOX_SET_RESET_DELAY_PARAMS */
3027 	MAKNIB(0, 0),	/* 0x3b: */
3028 	MAKNIB(0, 0),	/* 0x3c: */
3029 	MAKNIB(0, 0),	/* 0x3d: */
3030 	MAKNIB(0, 0),	/* 0x3e: */
3031 	MAKNIB(0, 0),	/* 0x3f: */
3032 	MAKNIB(1, 2),	/* 0x40: MBOX_RETURN_BIOS_BLOCK_ADDR */
3033 	MAKNIB(6, 1),	/* 0x41: MBOX_WRITE_FOUR_RAM_WORDS */
3034 	MAKNIB(2, 3),	/* 0x42: MBOX_EXEC_BIOS_IOCB */
3035 	MAKNIB(0, 0),	/* 0x43: */
3036 	MAKNIB(0, 0),	/* 0x44: */
3037 	MAKNIB(0, 0),	/* 0x45: */
3038 	MAKNIB(0, 0),	/* 0x46: */
3039 	MAKNIB(0, 0),	/* 0x47: */
3040 	MAKNIB(0, 0),	/* 0x48: */
3041 	MAKNIB(0, 0),	/* 0x49: */
3042 	MAKNIB(2, 1),	/* 0x4a: MBOX_SET_FIRMWARE_FEATURES */
3043 	MAKNIB(1, 2),	/* 0x4b: MBOX_GET_FIRMWARE_FEATURES */
3044 	MAKNIB(0, 0),	/* 0x4c: */
3045 	MAKNIB(0, 0),	/* 0x4d: */
3046 	MAKNIB(0, 0),	/* 0x4e: */
3047 	MAKNIB(0, 0),	/* 0x4f: */
3048 	MAKNIB(0, 0),	/* 0x50: */
3049 	MAKNIB(0, 0),	/* 0x51: */
3050 	MAKNIB(0, 0),	/* 0x52: */
3051 	MAKNIB(0, 0),	/* 0x53: */
3052 	MAKNIB(8, 0),	/* 0x54: MBOX_EXEC_COMMAND_IOCB_A64 */
3053 	MAKNIB(0, 0),	/* 0x55: */
3054 	MAKNIB(0, 0),	/* 0x56: */
3055 	MAKNIB(0, 0),	/* 0x57: */
3056 	MAKNIB(0, 0),	/* 0x58: */
3057 	MAKNIB(0, 0),	/* 0x59: */
3058 	MAKNIB(0, 0),	/* 0x5a: */
3059 	MAKNIB(0, 0),	/* 0x5b: */
3060 	MAKNIB(0, 0),	/* 0x5c: */
3061 	MAKNIB(0, 0),	/* 0x5d: */
3062 	MAKNIB(0, 0),	/* 0x5e: */
3063 	MAKNIB(0, 0),	/* 0x5f: */
3064 	MAKNIB(8, 6),	/* 0x60: MBOX_INIT_FIRMWARE */
3065 	MAKNIB(0, 0),	/* 0x61: */
3066 	MAKNIB(2, 1),	/* 0x62: MBOX_INIT_LIP */
3067 	MAKNIB(8, 1),	/* 0x63: MBOX_GET_FC_AL_POSITION_MAP */
3068 	MAKNIB(8, 1),	/* 0x64: MBOX_GET_PORT_DB */
3069 	MAKNIB(3, 1),	/* 0x65: MBOX_CLEAR_ACA */
3070 	MAKNIB(3, 1),	/* 0x66: MBOX_TARGET_RESET */
3071 	MAKNIB(3, 1),	/* 0x67: MBOX_CLEAR_TASK_SET */
3072 	MAKNIB(3, 1),	/* 0x68: MBOX_ABORT_TASK_SET */
3073 	MAKNIB(1, 2),	/* 0x69: MBOX_GET_FW_STATE */
3074 	MAKNIB(2, 8),	/* 0x6a: MBOX_GET_PORT_NAME */
3075 	MAKNIB(8, 1),	/* 0x6b: MBOX_GET_LINK_STATUS */
3076 	MAKNIB(4, 4),	/* 0x6c: MBOX_INIT_LIP_RESET */
3077 	MAKNIB(0, 0),	/* 0x6d: */
3078 	MAKNIB(8, 2),	/* 0x6e: MBOX_SEND_SNS */
3079 	MAKNIB(4, 3),	/* 0x6f: MBOX_FABRIC_LOGIN */
3080 	MAKNIB(2, 1),	/* 0x70: MBOX_SEND_CHANGE_REQUEST */
3081 	MAKNIB(2, 1),	/* 0x71: MBOX_FABRIC_LOGOUT */
3082 	MAKNIB(4, 1)	/* 0x72: MBOX_INIT_LIP_LOGIN */
3083 };
3084 #define	NMBCOM	(sizeof (mbpcnt) / sizeof (mbpcnt[0]))
3085 
3086 static void
3087 isp_mboxcmd(isp, mbp)
3088 	struct ispsoftc *isp;
3089 	mbreg_t *mbp;
3090 {
3091 	int outparam, inparam;
3092 	int loops, dld = 0;
3093 	u_int8_t opcode;
3094 
3095 	if (mbp->param[0] == ISP2100_SET_PCI_PARAM) {
3096 		opcode = mbp->param[0] = MBOX_SET_PCI_PARAMETERS;
3097 		inparam = 4;
3098 		outparam = 4;
3099 		goto command_known;
3100 	} else if (mbp->param[0] > NMBCOM) {
3101 		PRINTF("%s: bad command %x\n", isp->isp_name, mbp->param[0]);
3102 		return;
3103 	}
3104 
3105 	opcode = mbp->param[0];
3106 	inparam = HINIB(mbpcnt[mbp->param[0]]);
3107 	outparam =  LONIB(mbpcnt[mbp->param[0]]);
3108 
3109 	if (inparam == 0 && outparam == 0) {
3110 		PRINTF("%s: no parameters for %x\n", isp->isp_name,
3111 			mbp->param[0]);
3112 		return;
3113 	}
3114 
3115 
3116 	/*
3117 	 * Check for variants
3118 	 */
3119 #ifdef	ISP2100_SCCLUN
3120 	if (IS_FC(isp)) {
3121 		switch (mbp->param[0]) {
3122 		case MBOX_ABORT:
3123 			inparam = 7;
3124 			break;
3125 		case MBOX_ABORT_DEVICE:
3126 		case MBOX_START_QUEUE:
3127 		case MBOX_STOP_QUEUE:
3128 		case MBOX_SINGLE_STEP_QUEUE:
3129 		case MBOX_ABORT_QUEUE:
3130 		case MBOX_GET_DEV_QUEUE_STATUS:
3131 			inparam = 3;
3132 			break;
3133 		case MBOX_BUS_RESET:
3134 			inparam = 2;
3135 			break;
3136 		default:
3137 			break;
3138 		}
3139 	}
3140 #endif
3141 
3142 command_known:
3143 
3144 	/*
3145 	 * Set semaphore on mailbox registers to win any races to acquire them.
3146 	 */
3147 	ISP_WRITE(isp, BIU_SEMA, 1);
3148 
3149 	/*
3150 	 * Qlogic Errata for the ISP2100 says that there is a necessary
3151 	 * debounce between between writing the semaphore register
3152 	 * and reading a mailbox register. I believe we're okay here.
3153 	 */
3154 
3155 	/*
3156 	 * Make sure we can send some words.
3157 	 * Check to see if there's an async mbox event pending.
3158 	 */
3159 
3160 	loops = MBOX_DELAY_COUNT;
3161 	while ((ISP_READ(isp, HCCR) & HCCR_HOST_INT) != 0) {
3162 		if (ISP_READ(isp, BIU_SEMA) & 1) {
3163 			int fph;
3164 			u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
3165 			/*
3166 			 * We have a pending MBOX async event.
3167 			 */
3168 			if (mbox & 0x8000) {
3169 				fph = isp_parse_async(isp, (int) mbox);
3170 				IDPRINTF(5, ("%s: line %d, fph %d\n",
3171 				    isp->isp_name, __LINE__, fph));
3172 				ISP_WRITE(isp, BIU_SEMA, 0);
3173 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
3174 				if (fph < 0) {
3175 					return;
3176 				} else if (fph > 0) {
3177 					isp_fastpost_complete(isp, fph);
3178 				}
3179 				SYS_DELAY(100);
3180 				goto command_known;
3181 			}
3182 			/*
3183 			 * We have a pending MBOX completion? Might be
3184 			 * from a previous command. We can't (sometimes)
3185 			 * just clear HOST INTERRUPT, so we'll just silently
3186 			 * eat this here.
3187 			 */
3188 			if (mbox & 0x4000) {
3189 				IDPRINTF(5, ("%s: line %d, mbox 0x%x\n",
3190 				    isp->isp_name, __LINE__, mbox));
3191 				ISP_WRITE(isp, BIU_SEMA, 0);
3192 				ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
3193 				SYS_DELAY(100);
3194 				goto command_known;
3195 			}
3196 		}
3197 		SYS_DELAY(100);
3198 		if (--loops < 0) {
3199 			if (dld++ > 10) {
3200 				PRINTF("%s: isp_mboxcmd could not get command "
3201 				    "started\n", isp->isp_name);
3202 				return;
3203 			}
3204 			ISP_WRITE(isp, BIU_SEMA, 0);
3205 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
3206 			goto command_known;
3207 		}
3208 	}
3209 
3210 	/*
3211 	 * Write input parameters.
3212 	 *
3213 	 * Special case some of the setups for the dual port SCSI cards.
3214 	 * XXX Eventually will be fixed by converting register write/read
3215 	 * XXX counts to bitmasks.
3216 	 */
3217 	if (IS_12X0(isp)) {
3218 		switch (opcode) {
3219 		case MBOX_GET_RETRY_COUNT:
3220 		case MBOX_SET_RETRY_COUNT:
3221 			ISP_WRITE(isp, INMAILBOX7, mbp->param[7]);
3222 			mbp->param[7] = 0;
3223 			ISP_WRITE(isp, INMAILBOX6, mbp->param[6]);
3224 			mbp->param[6] = 0;
3225 			break;
3226 		case MBOX_SET_ASYNC_DATA_SETUP_TIME:
3227 		case MBOX_SET_ACT_NEG_STATE:
3228 		case MBOX_SET_TAG_AGE_LIMIT:
3229 		case MBOX_SET_SELECT_TIMEOUT:
3230 			ISP_WRITE(isp, INMAILBOX2, mbp->param[2]);
3231 			mbp->param[2] = 0;
3232 			break;
3233 		}
3234 	}
3235 
3236 	switch (inparam) {
3237 	case 8: ISP_WRITE(isp, INMAILBOX7, mbp->param[7]); mbp->param[7] = 0;
3238 	case 7: ISP_WRITE(isp, INMAILBOX6, mbp->param[6]); mbp->param[6] = 0;
3239 	case 6:
3240 		/*
3241 		 * The Qlogic 2100 cannot have registers 4 and 5 written to
3242 		 * after initialization or BAD THINGS HAPPEN (tm).
3243 		 */
3244 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
3245 			ISP_WRITE(isp, INMAILBOX5, mbp->param[5]);
3246 		mbp->param[5] = 0;
3247 	case 5:
3248 		if (IS_SCSI(isp) || mbp->param[0] == MBOX_INIT_FIRMWARE)
3249 			ISP_WRITE(isp, INMAILBOX4, mbp->param[4]);
3250 		mbp->param[4] = 0;
3251 	case 4: ISP_WRITE(isp, INMAILBOX3, mbp->param[3]); mbp->param[3] = 0;
3252 	case 3: ISP_WRITE(isp, INMAILBOX2, mbp->param[2]); mbp->param[2] = 0;
3253 	case 2: ISP_WRITE(isp, INMAILBOX1, mbp->param[1]); mbp->param[1] = 0;
3254 	case 1: ISP_WRITE(isp, INMAILBOX0, mbp->param[0]); mbp->param[0] = 0;
3255 	}
3256 
3257 	/*
3258 	 * Clear RISC int condition.
3259 	 */
3260 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
3261 
3262 	/*
3263 	 * Clear semaphore on mailbox registers so that the Qlogic
3264 	 * may update outgoing registers.
3265 	 */
3266 	ISP_WRITE(isp, BIU_SEMA, 0);
3267 
3268 	/*
3269 	 * Set Host Interrupt condition so that RISC will pick up mailbox regs.
3270 	 */
3271 	ISP_WRITE(isp, HCCR, HCCR_CMD_SET_HOST_INT);
3272 
3273 	/*
3274 	 * Wait until HOST INT has gone away (meaning that the Qlogic
3275 	 * has picked up the mailbox command. Wait a long time.
3276 	 */
3277 	loops = MBOX_DELAY_COUNT * 5;
3278 	while ((ISP_READ(isp, HCCR) & HCCR_CMD_CLEAR_RISC_INT) != 0) {
3279 		SYS_DELAY(100);
3280 		if (--loops < 0) {
3281 			PRINTF("%s: isp_mboxcmd timeout #2\n", isp->isp_name);
3282 			return;
3283 		}
3284 	}
3285 
3286 	/*
3287 	 * While the Semaphore registers isn't set, wait for the Qlogic
3288 	 * to process the mailbox command. Again- wait a long time.
3289 	 */
3290 	loops = MBOX_DELAY_COUNT * 5;
3291 	while ((ISP_READ(isp, BIU_SEMA) & 1) == 0) {
3292 		SYS_DELAY(100);
3293 		/*
3294 		 * Wierd- I've seen the case where the semaphore register
3295 		 * isn't getting set- sort of a violation of the protocol..
3296 		 */
3297 		if (ISP_READ(isp, OUTMAILBOX0) & 0x4000)
3298 			break;
3299 		if (--loops < 0) {
3300 			PRINTF("%s: isp_mboxcmd timeout #3\n", isp->isp_name);
3301 			return;
3302 		}
3303 	}
3304 
3305 	/*
3306 	 * Make sure that the MBOX_BUSY has gone away
3307 	 */
3308 	loops = MBOX_DELAY_COUNT;
3309 	for (;;) {
3310 		u_int16_t mbox = ISP_READ(isp, OUTMAILBOX0);
3311 		if (mbox == MBOX_BUSY) {
3312 			if (--loops < 0) {
3313 				PRINTF("%s: isp_mboxcmd timeout #4\n",
3314 				    isp->isp_name);
3315 				return;
3316 			}
3317 			SYS_DELAY(100);
3318 			continue;
3319 		}
3320 		/*
3321 		 * We have a pending MBOX async event.
3322 		 */
3323 		if (mbox & 0x8000) {
3324 			int fph = isp_parse_async(isp, (int) mbox);
3325 			ISP_WRITE(isp, BIU_SEMA, 0);
3326 			ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
3327 			if (fph < 0) {
3328 				return;
3329 			} else if (fph > 0) {
3330 				isp_fastpost_complete(isp, fph);
3331 			}
3332 			SYS_DELAY(100);
3333 			continue;
3334 		}
3335 		break;
3336 	}
3337 
3338 	/*
3339 	 * Pick up output parameters. Special case some of the readbacks
3340 	 * for the dual port SCSI cards.
3341 	 */
3342 	if (IS_12X0(isp)) {
3343 		switch (opcode) {
3344 		case MBOX_GET_RETRY_COUNT:
3345 		case MBOX_SET_RETRY_COUNT:
3346 			mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
3347 			mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
3348 			break;
3349 		case MBOX_GET_TAG_AGE_LIMIT:
3350 		case MBOX_SET_TAG_AGE_LIMIT:
3351 		case MBOX_GET_ACT_NEG_STATE:
3352 		case MBOX_SET_ACT_NEG_STATE:
3353 		case MBOX_SET_ASYNC_DATA_SETUP_TIME:
3354 		case MBOX_GET_ASYNC_DATA_SETUP_TIME:
3355 		case MBOX_GET_RESET_DELAY_PARAMS:
3356 		case MBOX_SET_RESET_DELAY_PARAMS:
3357 			mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
3358 			break;
3359 		}
3360 	}
3361 
3362 	switch (outparam) {
3363 	case 8: mbp->param[7] = ISP_READ(isp, OUTMAILBOX7);
3364 	case 7: mbp->param[6] = ISP_READ(isp, OUTMAILBOX6);
3365 	case 6: mbp->param[5] = ISP_READ(isp, OUTMAILBOX5);
3366 	case 5: mbp->param[4] = ISP_READ(isp, OUTMAILBOX4);
3367 	case 4: mbp->param[3] = ISP_READ(isp, OUTMAILBOX3);
3368 	case 3: mbp->param[2] = ISP_READ(isp, OUTMAILBOX2);
3369 	case 2: mbp->param[1] = ISP_READ(isp, OUTMAILBOX1);
3370 	case 1: mbp->param[0] = ISP_READ(isp, OUTMAILBOX0);
3371 	}
3372 
3373 	/*
3374 	 * Clear RISC int.
3375 	 */
3376 	ISP_WRITE(isp, HCCR, HCCR_CMD_CLEAR_RISC_INT);
3377 
3378 	/*
3379 	 * Release semaphore on mailbox registers
3380 	 */
3381 	ISP_WRITE(isp, BIU_SEMA, 0);
3382 
3383 	/*
3384 	 * Just to be chatty here...
3385 	 */
3386 	switch (mbp->param[0]) {
3387 	case MBOX_COMMAND_COMPLETE:
3388 		break;
3389 	case MBOX_INVALID_COMMAND:
3390 		IDPRINTF(2, ("%s: mbox cmd %x failed with INVALID_COMMAND\n",
3391 		    isp->isp_name, opcode));
3392 		break;
3393 	case MBOX_HOST_INTERFACE_ERROR:
3394 		PRINTF("%s: mbox cmd %x failed with HOST_INTERFACE_ERROR\n",
3395 		    isp->isp_name, opcode);
3396 		break;
3397 	case MBOX_TEST_FAILED:
3398 		PRINTF("%s: mbox cmd %x failed with TEST_FAILED\n",
3399 		    isp->isp_name, opcode);
3400 		break;
3401 	case MBOX_COMMAND_ERROR:
3402 		if (opcode != MBOX_ABOUT_FIRMWARE)
3403 		    PRINTF("%s: mbox cmd %x failed with COMMAND_ERROR\n",
3404 			isp->isp_name, opcode);
3405 		break;
3406 	case MBOX_COMMAND_PARAM_ERROR:
3407 		switch (opcode) {
3408 		case MBOX_GET_PORT_DB:
3409 		case MBOX_GET_PORT_NAME:
3410 		case MBOX_GET_DEV_QUEUE_PARAMS:
3411 			break;
3412 		default:
3413 			PRINTF("%s: mbox cmd %x failed with "
3414 			    "COMMAND_PARAM_ERROR\n", isp->isp_name, opcode);
3415 		}
3416 		break;
3417 
3418 	/*
3419 	 * Be silent about these...
3420 	 */
3421 	case ASYNC_PDB_CHANGED:
3422 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_PDB_RCVD;
3423 		break;
3424 
3425 	case ASYNC_LIP_OCCURRED:
3426 		((fcparam *) isp->isp_param)->isp_lipseq = mbp->param[1];
3427 		/* FALLTHROUGH */
3428 	case ASYNC_LOOP_UP:
3429 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
3430 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_LIP_RCVD;
3431 		break;
3432 
3433 	case ASYNC_LOOP_DOWN:
3434 	case ASYNC_LOOP_RESET:
3435 		((fcparam *) isp->isp_param)->isp_fwstate = FW_CONFIG_WAIT;
3436 		((fcparam *) isp->isp_param)->isp_loopstate = LOOP_NIL;
3437 		/* FALLTHROUGH */
3438 	case ASYNC_CHANGE_NOTIFY:
3439 		break;
3440 
3441 	default:
3442 		/*
3443 		 * The expected return of EXEC_FIRMWARE is zero.
3444 		 */
3445 		if ((opcode == MBOX_EXEC_FIRMWARE && mbp->param[0] != 0) ||
3446 		    (opcode != MBOX_EXEC_FIRMWARE)) {
3447 			PRINTF("%s: mbox cmd %x failed with error %x\n",
3448 				isp->isp_name, opcode, mbp->param[0]);
3449 		}
3450 		break;
3451 	}
3452 }
3453 
3454 void
3455 isp_lostcmd(isp, xs)
3456 	struct ispsoftc *isp;
3457 	ISP_SCSI_XFER_T *xs;
3458 {
3459 	mbreg_t mbs;
3460 
3461 	mbs.param[0] = MBOX_GET_FIRMWARE_STATUS;
3462 	isp_mboxcmd(isp, &mbs);
3463 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
3464 		isp_dumpregs(isp, "couldn't GET FIRMWARE STATUS");
3465 		return;
3466 	}
3467 	if (mbs.param[1]) {
3468 		PRINTF("%s: %d commands on completion queue\n",
3469 		    isp->isp_name, mbs.param[1]);
3470 	}
3471 	if (XS_NULL(xs))
3472 		return;
3473 
3474 	mbs.param[0] = MBOX_GET_DEV_QUEUE_STATUS;
3475 	mbs.param[1] = (XS_TGT(xs) << 8) | XS_LUN(xs); /* XXX: WHICH BUS? */
3476 	isp_mboxcmd(isp, &mbs);
3477 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
3478 		isp_dumpregs(isp, "couldn't GET DEVICE QUEUE STATUS");
3479 		return;
3480 	}
3481 	PRINTF("%s: lost command for target %d lun %d, %d active of %d, "
3482 		"Queue State: %x\n", isp->isp_name, XS_TGT(xs),
3483 		XS_LUN(xs), mbs.param[2], mbs.param[3], mbs.param[1]);
3484 
3485 	isp_dumpregs(isp, "lost command");
3486 	/*
3487 	 * XXX: Need to try and do something to recover.
3488 	 */
3489 }
3490 
3491 static void
3492 isp_dumpregs(isp, msg)
3493 	struct ispsoftc *isp;
3494 	const char *msg;
3495 {
3496 	PRINTF("%s: %s\n", isp->isp_name, msg);
3497 	if (IS_SCSI(isp))
3498 		PRINTF("    biu_conf1=%x", ISP_READ(isp, BIU_CONF1));
3499 	else
3500 		PRINTF("    biu_csr=%x", ISP_READ(isp, BIU2100_CSR));
3501 	PRINTF(" biu_icr=%x biu_isr=%x biu_sema=%x ", ISP_READ(isp, BIU_ICR),
3502 	    ISP_READ(isp, BIU_ISR), ISP_READ(isp, BIU_SEMA));
3503 	PRINTF("risc_hccr=%x\n", ISP_READ(isp, HCCR));
3504 
3505 
3506 	if (IS_SCSI(isp)) {
3507 		ISP_WRITE(isp, HCCR, HCCR_CMD_PAUSE);
3508 		PRINTF("    cdma_conf=%x cdma_sts=%x cdma_fifostat=%x\n",
3509 			ISP_READ(isp, CDMA_CONF), ISP_READ(isp, CDMA_STATUS),
3510 			ISP_READ(isp, CDMA_FIFO_STS));
3511 		PRINTF("    ddma_conf=%x ddma_sts=%x ddma_fifostat=%x\n",
3512 			ISP_READ(isp, DDMA_CONF), ISP_READ(isp, DDMA_STATUS),
3513 			ISP_READ(isp, DDMA_FIFO_STS));
3514 		PRINTF("    sxp_int=%x sxp_gross=%x sxp(scsi_ctrl)=%x\n",
3515 			ISP_READ(isp, SXP_INTERRUPT),
3516 			ISP_READ(isp, SXP_GROSS_ERR),
3517 			ISP_READ(isp, SXP_PINS_CONTROL));
3518 		ISP_WRITE(isp, HCCR, HCCR_CMD_RELEASE);
3519 	}
3520 	PRINTF("    mbox regs: %x %x %x %x %x\n",
3521 	    ISP_READ(isp, OUTMAILBOX0), ISP_READ(isp, OUTMAILBOX1),
3522 	    ISP_READ(isp, OUTMAILBOX2), ISP_READ(isp, OUTMAILBOX3),
3523 	    ISP_READ(isp, OUTMAILBOX4));
3524 	ISP_DUMPREGS(isp);
3525 }
3526 
3527 static void
3528 isp_fw_state(isp)
3529 	struct ispsoftc *isp;
3530 {
3531 	mbreg_t mbs;
3532 	if (IS_FC(isp)) {
3533 		int once = 0;
3534 		fcparam *fcp = isp->isp_param;
3535 again:
3536 		mbs.param[0] = MBOX_GET_FW_STATE;
3537 		isp_mboxcmd(isp, &mbs);
3538 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
3539 			IDPRINTF(1, ("%s: isp_fw_state 0x%x\n", isp->isp_name,
3540 			    mbs.param[0]));
3541 			switch (mbs.param[0]) {
3542 			case ASYNC_PDB_CHANGED:
3543 				if (once++ < 10) {
3544 					goto again;
3545 				}
3546 				fcp->isp_fwstate = FW_CONFIG_WAIT;
3547 				fcp->isp_loopstate = LOOP_PDB_RCVD;
3548 				goto again;
3549 			case ASYNC_LIP_OCCURRED:
3550 				fcp->isp_lipseq = mbs.param[1];
3551 				/* FALLTHROUGH */
3552 			case ASYNC_LOOP_UP:
3553 				fcp->isp_fwstate = FW_CONFIG_WAIT;
3554 				fcp->isp_loopstate = LOOP_LIP_RCVD;
3555 				if (once++ < 10) {
3556 					goto again;
3557 				}
3558 				break;
3559 			case ASYNC_LOOP_RESET:
3560 			case ASYNC_LOOP_DOWN:
3561 				fcp->isp_fwstate = FW_CONFIG_WAIT;
3562 				fcp->isp_loopstate = LOOP_NIL;
3563 				/* FALLTHROUGH */
3564 			case ASYNC_CHANGE_NOTIFY:
3565 				if (once++ < 10) {
3566 					goto again;
3567 				}
3568 				break;
3569 			}
3570 			PRINTF("%s: GET FIRMWARE STATE failed (0x%x)\n",
3571 			    isp->isp_name, mbs.param[0]);
3572 			return;
3573 		}
3574 		fcp->isp_fwstate = mbs.param[1];
3575 	}
3576 }
3577 
3578 static void
3579 isp_update(isp)
3580 	struct ispsoftc *isp;
3581 {
3582 	int bus;
3583 
3584 	for (bus = 0; isp->isp_update != 0; bus++) {
3585 		if (isp->isp_update & (1 << bus)) {
3586 			isp_update_bus(isp, bus);
3587 			isp->isp_update ^= (1 << bus);
3588 		}
3589 	}
3590 }
3591 
3592 static void
3593 isp_update_bus(isp, bus)
3594 	struct ispsoftc *isp;
3595 	int bus;
3596 {
3597 	int tgt;
3598 	mbreg_t mbs;
3599 	sdparam *sdp;
3600 
3601 	if (IS_FC(isp)) {
3602 		return;
3603 	}
3604 
3605 	sdp = isp->isp_param;
3606 	sdp += bus;
3607 
3608 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
3609 		u_int16_t flags, period, offset;
3610 		int get;
3611 
3612 		if (sdp->isp_devparam[tgt].dev_enable == 0) {
3613 			IDPRINTF(1, ("%s: skipping target %d bus %d update\n",
3614 			    isp->isp_name, tgt, bus));
3615 			continue;
3616 		}
3617 
3618 		/*
3619 		 * If the goal is to update the status of the device,
3620 		 * take what's in dev_flags and try and set the device
3621 		 * toward that. Otherwise, if we're just refreshing the
3622 		 * current device state, get the current parameters.
3623 		 */
3624 		if (sdp->isp_devparam[tgt].dev_update) {
3625 			mbs.param[0] = MBOX_SET_TARGET_PARAMS;
3626 			mbs.param[2] = sdp->isp_devparam[tgt].dev_flags;
3627 			/*
3628 			 * Insist that PARITY must be enabled if SYNC
3629 			 * is enabled.
3630 			 */
3631 			if (mbs.param[2] & DPARM_SYNC) {
3632 				mbs.param[2] |= DPARM_PARITY;
3633 			}
3634 			mbs.param[3] =
3635 				(sdp->isp_devparam[tgt].sync_offset << 8) |
3636 				(sdp->isp_devparam[tgt].sync_period);
3637 			sdp->isp_devparam[tgt].dev_update = 0;
3638 			/*
3639 			 * A command completion later that has
3640 			 * RQSTF_NEGOTIATION set will cause
3641 			 * the dev_refresh/announce cycle.
3642 			 *
3643 			 * Note: It is really important to update our current
3644 			 * flags with at least the state of TAG capabilities-
3645 			 * otherwise we might try and send a tagged command
3646 			 * when we have it all turned off. So change it here
3647 			 * to say that current already matches goal.
3648 			 */
3649 			sdp->isp_devparam[tgt].cur_dflags &= ~DPARM_TQING;
3650 			sdp->isp_devparam[tgt].cur_dflags |=
3651 			    (sdp->isp_devparam[tgt].dev_flags & DPARM_TQING);
3652 			sdp->isp_devparam[tgt].dev_refresh = 1;
3653 			IDPRINTF(3, ("%s: bus %d set tgt %d flags 0x%x off 0x%x"
3654 			    " period 0x%x\n", isp->isp_name, bus, tgt,
3655 			    mbs.param[2], mbs.param[3] >> 8,
3656 			    mbs.param[3] & 0xff));
3657 			get = 0;
3658 		} else if (sdp->isp_devparam[tgt].dev_refresh) {
3659 			mbs.param[0] = MBOX_GET_TARGET_PARAMS;
3660 			sdp->isp_devparam[tgt].dev_refresh = 0;
3661 			get = 1;
3662 		} else {
3663 			continue;
3664 		}
3665 		mbs.param[1] = (bus << 15) | (tgt << 8) ;
3666 		isp_mboxcmd(isp, &mbs);
3667 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
3668 			PRINTF("%s: failed to %cet SCSI parameters for "
3669 			    "target %d\n", isp->isp_name, (get)? 'g' : 's',
3670 			    tgt);
3671 			continue;
3672 		}
3673 		if (get == 0) {
3674 			isp->isp_sendmarker |= (1 << bus);
3675 			continue;
3676 		}
3677 		flags = mbs.param[2];
3678 		period = mbs.param[3] & 0xff;
3679 		offset = mbs.param[3] >> 8;
3680 		sdp->isp_devparam[tgt].cur_dflags = flags;
3681 		sdp->isp_devparam[tgt].cur_period = period;
3682 		sdp->isp_devparam[tgt].cur_offset = offset;
3683 		get = (bus << 16) | tgt;
3684 		(void) isp_async(isp, ISPASYNC_NEW_TGT_PARAMS, &get);
3685 	}
3686 }
3687 
3688 static void
3689 isp_setdfltparm(isp, channel)
3690 	struct ispsoftc *isp;
3691 	int channel;
3692 {
3693 	int tgt;
3694 	mbreg_t mbs;
3695 	sdparam *sdp, *sdp_chan0, *sdp_chan1;
3696 
3697 	if (IS_FC(isp)) {
3698 		fcparam *fcp = (fcparam *) isp->isp_param;
3699 		fcp += channel;
3700 		if (fcp->isp_gotdparms) {
3701 			return;
3702 		}
3703 		fcp->isp_gotdparms = 1;
3704 		fcp->isp_maxfrmlen = ICB_DFLT_FRMLEN;
3705 		fcp->isp_maxalloc = ICB_DFLT_ALLOC;
3706 		fcp->isp_execthrottle = ICB_DFLT_THROTTLE;
3707 		fcp->isp_retry_delay = ICB_DFLT_RDELAY;
3708 		fcp->isp_retry_count = ICB_DFLT_RCOUNT;
3709 		/* Platform specific.... */
3710 		fcp->isp_loopid = DEFAULT_LOOPID(isp);
3711 		fcp->isp_nodewwn = DEFAULT_WWN(isp);
3712 		fcp->isp_portwwn = 0;
3713 		/*
3714 		 * Now try and read NVRAM
3715 		 */
3716 		if ((isp->isp_confopts & (ISP_CFG_NONVRAM|ISP_CFG_OWNWWN)) ||
3717 		    (isp_read_nvram(isp))) {
3718 			PRINTF("%s: using Node WWN 0x%08x%08x\n",
3719 			    isp->isp_name, (u_int32_t)(fcp->isp_nodewwn >> 32),
3720 			    (u_int32_t)(fcp->isp_nodewwn & 0xffffffff));
3721 		}
3722 		return;
3723 	}
3724 
3725 	sdp_chan0 = (sdparam *) isp->isp_param;
3726 	sdp_chan1 = sdp_chan0 + 1;
3727 	sdp = sdp_chan0 + channel;
3728 
3729 	/*
3730 	 * Been there, done that, got the T-shirt...
3731 	 */
3732 	if (sdp->isp_gotdparms) {
3733 		return;
3734 	}
3735 	sdp->isp_gotdparms = 1;
3736 
3737 	/*
3738 	 * If we've not been told to avoid reading NVRAM, try and read it.
3739 	 * If we're successful reading it, we can return since NVRAM will
3740 	 * tell us the right thing to do. Otherwise, establish some reasonable
3741 	 * defaults.
3742 	 */
3743 	if ((isp->isp_confopts & ISP_CFG_NONVRAM) == 0) {
3744 		if (isp_read_nvram(isp) == 0) {
3745 			return;
3746 		}
3747 	}
3748 
3749 	/*
3750 	 * Now try and see whether we have specific values for them.
3751 	 */
3752 	mbs.param[0] = MBOX_GET_ACT_NEG_STATE;
3753 	isp_mboxcmd(isp, &mbs);
3754 	if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
3755 		IDPRINTF(2, ("could not GET ACT NEG STATE\n"));
3756 		sdp_chan0->isp_req_ack_active_neg = 1;
3757 		sdp_chan0->isp_data_line_active_neg = 1;
3758 		if (IS_12X0(isp)) {
3759 			sdp_chan1->isp_req_ack_active_neg = 1;
3760 			sdp_chan1->isp_data_line_active_neg = 1;
3761 		}
3762 	} else {
3763 		sdp_chan0->isp_req_ack_active_neg = (mbs.param[1] >> 4) & 0x1;
3764 		sdp_chan0->isp_data_line_active_neg = (mbs.param[1] >> 5) & 0x1;
3765 		if (IS_12X0(isp)) {
3766 			sdp_chan1->isp_req_ack_active_neg =
3767 			    (mbs.param[2] >> 4) & 0x1;
3768 			sdp_chan1->isp_data_line_active_neg =
3769 			    (mbs.param[2] >> 5) & 0x1;
3770 		}
3771 	}
3772 
3773 	/*
3774 	 * The trick here is to establish a default for the default (honk!)
3775 	 * state (dev_flags). Then try and get the current status from
3776 	 * the card to fill in the current state. We don't, in fact, set
3777 	 * the default to the SAFE default state- that's not the goal state.
3778 	 */
3779 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
3780 		sdp->isp_devparam[tgt].cur_offset = 0;
3781 		sdp->isp_devparam[tgt].cur_period = 0;
3782 		sdp->isp_devparam[tgt].dev_flags = DPARM_DEFAULT;
3783 		sdp->isp_devparam[tgt].cur_dflags = 0;
3784 		if (isp->isp_type < ISP_HA_SCSI_1040 ||
3785 		    (isp->isp_clock && isp->isp_clock < 60)) {
3786 			sdp->isp_devparam[tgt].sync_offset =
3787 			    ISP_10M_SYNCPARMS >> 8;
3788 			sdp->isp_devparam[tgt].sync_period =
3789 			    ISP_10M_SYNCPARMS & 0xff;
3790 		} else if (IS_1080(isp)) {
3791 			sdp->isp_devparam[tgt].sync_offset =
3792 			    ISP_40M_SYNCPARMS >> 8;
3793 			sdp->isp_devparam[tgt].sync_period =
3794 			    ISP_40M_SYNCPARMS & 0xff;
3795 		} else {
3796 			sdp->isp_devparam[tgt].sync_offset =
3797 			    ISP_20M_SYNCPARMS >> 8;
3798 			sdp->isp_devparam[tgt].sync_period =
3799 			    ISP_20M_SYNCPARMS & 0xff;
3800 		}
3801 
3802 		/*
3803 		 * Don't get current target parameters if we've been
3804 		 * told not to use NVRAM- it's really the same thing.
3805 		 */
3806 		if (isp->isp_confopts & ISP_CFG_NONVRAM) {
3807 			continue;
3808 		}
3809 
3810 		mbs.param[0] = MBOX_GET_TARGET_PARAMS;
3811 		mbs.param[1] = tgt << 8;
3812 		isp_mboxcmd(isp, &mbs);
3813 		if (mbs.param[0] != MBOX_COMMAND_COMPLETE) {
3814 			continue;
3815 		}
3816 		sdp->isp_devparam[tgt].cur_dflags = mbs.param[2];
3817 		sdp->isp_devparam[tgt].dev_flags = mbs.param[2];
3818 		sdp->isp_devparam[tgt].cur_period = mbs.param[3] & 0xff;
3819 		sdp->isp_devparam[tgt].cur_offset = mbs.param[3] >> 8;
3820 
3821 		/*
3822 		 * The maximum period we can really see
3823 		 * here is 100 (decimal), or 400 ns.
3824 		 * For some unknown reason we sometimes
3825 		 * get back wildass numbers from the
3826 		 * boot device's parameters (alpha only).
3827 		 */
3828 		if ((mbs.param[3] & 0xff) <= 0x64) {
3829 			sdp->isp_devparam[tgt].sync_period =
3830 			    mbs.param[3] & 0xff;
3831 			sdp->isp_devparam[tgt].sync_offset =
3832 			    mbs.param[3] >> 8;
3833 		}
3834 
3835 		/*
3836 		 * It is not safe to run Ultra Mode with a clock < 60.
3837 		 */
3838 		if (((isp->isp_clock && isp->isp_clock < 60) ||
3839 		    (isp->isp_type < ISP_HA_SCSI_1020A)) &&
3840 		    (sdp->isp_devparam[tgt].sync_period <=
3841 		    (ISP_20M_SYNCPARMS & 0xff))) {
3842 			sdp->isp_devparam[tgt].sync_offset =
3843 			    ISP_10M_SYNCPARMS >> 8;
3844 			sdp->isp_devparam[tgt].sync_period =
3845 			    ISP_10M_SYNCPARMS & 0xff;
3846 		}
3847 	}
3848 
3849 	/*
3850 	 * Establish default some more default parameters.
3851 	 */
3852 	sdp->isp_cmd_dma_burst_enable = 1;
3853 	sdp->isp_data_dma_burst_enabl = 1;
3854 	sdp->isp_fifo_threshold = 0;
3855 	sdp->isp_initiator_id = 7;
3856 	/* XXXX This is probably based upon clock XXXX */
3857 	if (isp->isp_type >= ISP_HA_SCSI_1040) {
3858 		sdp->isp_async_data_setup = 9;
3859 	} else {
3860 		sdp->isp_async_data_setup = 6;
3861 	}
3862 	sdp->isp_selection_timeout = 250;
3863 	sdp->isp_max_queue_depth = MAXISPREQUEST;
3864 	sdp->isp_tag_aging = 8;
3865 	sdp->isp_bus_reset_delay = 3;
3866 	sdp->isp_retry_count = 2;
3867 	sdp->isp_retry_delay = 2;
3868 
3869 	for (tgt = 0; tgt < MAX_TARGETS; tgt++) {
3870 		sdp->isp_devparam[tgt].exc_throttle = 16;
3871 		sdp->isp_devparam[tgt].dev_enable = 1;
3872 	}
3873 }
3874 
3875 /*
3876  * Re-initialize the ISP and complete all orphaned commands
3877  * with a 'botched' notice. The reset/init routines should
3878  * not disturb an already active list of commands.
3879  *
3880  * Locks held prior to coming here.
3881  */
3882 
3883 void
3884 isp_restart(isp)
3885 	struct ispsoftc *isp;
3886 {
3887 	ISP_SCSI_XFER_T *xs;
3888 	u_int32_t handle;
3889 
3890 #if	0
3891 	isp->isp_gotdparms = 0;
3892 #endif
3893 	isp_reset(isp);
3894 	if (isp->isp_state == ISP_RESETSTATE) {
3895 		isp_init(isp);
3896 		if (isp->isp_state == ISP_INITSTATE) {
3897 			isp->isp_state = ISP_RUNSTATE;
3898 		}
3899 	}
3900 	if (isp->isp_state != ISP_RUNSTATE) {
3901 		PRINTF("%s: isp_restart cannot restart ISP\n", isp->isp_name);
3902 	}
3903 	isp->isp_nactive = 0;
3904 
3905 	for (handle = 1; handle <= (int) isp->isp_maxcmds; handle++) {
3906 		xs = isp_find_xs(isp, handle);
3907 		if (xs == NULL) {
3908 			continue;
3909 		}
3910 		isp_destroy_handle(isp, handle);
3911 		if (XS_XFRLEN(xs)) {
3912 			ISP_DMAFREE(isp, xs, handle);
3913 			XS_RESID(xs) = XS_XFRLEN(xs);
3914 		} else {
3915 			XS_RESID(xs) = 0;
3916 		}
3917 		XS_SETERR(xs, HBA_BUSRESET);
3918 		XS_CMD_DONE(xs);
3919 	}
3920 }
3921 
3922 /*
3923  * NVRAM Routines
3924  */
3925 
3926 static int
3927 isp_read_nvram(isp)
3928 	struct ispsoftc *isp;
3929 {
3930 	static char *tru = "true";
3931 	static char *not = "false";
3932 	int i, amt;
3933 	u_int8_t csum, minversion;
3934 	union {
3935 		u_int8_t _x[ISP2100_NVRAM_SIZE];
3936 		u_int16_t _s[ISP2100_NVRAM_SIZE>>1];
3937 	} _n;
3938 #define	nvram_data	_n._x
3939 #define	nvram_words	_n._s
3940 
3941 	if (IS_FC(isp)) {
3942 		amt = ISP2100_NVRAM_SIZE;
3943 		minversion = 1;
3944 	} else if (IS_1080(isp) || IS_12X0(isp)) {
3945 		amt = ISP1080_NVRAM_SIZE;
3946 		minversion = 0;
3947 	} else {
3948 		amt = ISP_NVRAM_SIZE;
3949 		minversion = 2;
3950 	}
3951 
3952 	/*
3953 	 * Just read the first two words first to see if we have a valid
3954 	 * NVRAM to continue reading the rest with.
3955 	 */
3956 	for (i = 0; i < 2; i++) {
3957 		isp_rdnvram_word(isp, i, &nvram_words[i]);
3958 	}
3959 	if (nvram_data[0] != 'I' || nvram_data[1] != 'S' ||
3960 	    nvram_data[2] != 'P') {
3961 		if (isp->isp_bustype != ISP_BT_SBUS) {
3962 			PRINTF("%s: invalid NVRAM header (%x,%x,%x,%x)\n",
3963 			    isp->isp_name, nvram_data[0], nvram_data[1],
3964 			    nvram_data[2], nvram_data[3]);
3965 		}
3966 		return (-1);
3967 	}
3968 	for (i = 2; i < amt>>1; i++) {
3969 		isp_rdnvram_word(isp, i, &nvram_words[i]);
3970 	}
3971 	for (csum = 0, i = 0; i < amt; i++) {
3972 		csum += nvram_data[i];
3973 	}
3974 	if (csum != 0) {
3975 		PRINTF("%s: invalid NVRAM checksum\n", isp->isp_name);
3976 		return (-1);
3977 	}
3978 	if (ISP_NVRAM_VERSION(nvram_data) < minversion) {
3979 		PRINTF("%s: version %d NVRAM not understood\n", isp->isp_name,
3980 		    ISP_NVRAM_VERSION(nvram_data));
3981 		return (-1);
3982 	}
3983 
3984 	if (IS_1080(isp) || IS_12X0(isp)) {
3985 		int bus;
3986 		sdparam *sdp = (sdparam *) isp->isp_param;
3987 		for (bus = 0; bus < (IS_1080(isp)? 1 : 2); bus++, sdp++) {
3988 			sdp->isp_fifo_threshold =
3989 			    ISP1080_NVRAM_FIFO_THRESHOLD(nvram_data);
3990 
3991 			sdp->isp_initiator_id =
3992 			    ISP1080_NVRAM_INITIATOR_ID(nvram_data, bus);
3993 
3994 			sdp->isp_bus_reset_delay =
3995 			    ISP1080_NVRAM_BUS_RESET_DELAY(nvram_data, bus);
3996 
3997 			sdp->isp_retry_count =
3998 			    ISP1080_NVRAM_BUS_RETRY_COUNT(nvram_data, bus);
3999 
4000 			sdp->isp_retry_delay =
4001 			    ISP1080_NVRAM_BUS_RETRY_DELAY(nvram_data, bus);
4002 
4003 			sdp->isp_async_data_setup =
4004 			    ISP1080_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data,
4005 			    bus);
4006 
4007 			sdp->isp_req_ack_active_neg =
4008 			    ISP1080_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data,
4009 			    bus);
4010 
4011 			sdp->isp_data_line_active_neg =
4012 			    ISP1080_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data,
4013 			    bus);
4014 
4015 			sdp->isp_data_dma_burst_enabl =
4016 			    ISP1080_NVRAM_BURST_ENABLE(nvram_data);
4017 
4018 			sdp->isp_cmd_dma_burst_enable =
4019 			    ISP1080_NVRAM_BURST_ENABLE(nvram_data);
4020 
4021 			sdp->isp_selection_timeout =
4022 			    ISP1080_NVRAM_SELECTION_TIMEOUT(nvram_data, bus);
4023 
4024 			sdp->isp_max_queue_depth =
4025 			     ISP1080_NVRAM_MAX_QUEUE_DEPTH(nvram_data, bus);
4026 
4027 			if (isp->isp_dblev >= 3) {
4028 				PRINTF("%s: ISP1080 bus %d NVRAM values:\n",
4029 				    isp->isp_name, bus);
4030 				PRINTF("               Initiator ID = %d\n",
4031 				    sdp->isp_initiator_id);
4032 				PRINTF("             Fifo Threshold = 0x%x\n",
4033 				    sdp->isp_fifo_threshold);
4034 				PRINTF("            Bus Reset Delay = %d\n",
4035 				    sdp->isp_bus_reset_delay);
4036 				PRINTF("                Retry Count = %d\n",
4037 				    sdp->isp_retry_count);
4038 				PRINTF("                Retry Delay = %d\n",
4039 				    sdp->isp_retry_delay);
4040 				PRINTF("              Tag Age Limit = %d\n",
4041 				    sdp->isp_tag_aging);
4042 				PRINTF("          Selection Timeout = %d\n",
4043 				    sdp->isp_selection_timeout);
4044 				PRINTF("            Max Queue Depth = %d\n",
4045 				    sdp->isp_max_queue_depth);
4046 				PRINTF("           Async Data Setup = 0x%x\n",
4047 				    sdp->isp_async_data_setup);
4048 				PRINTF("    REQ/ACK Active Negation = %s\n",
4049 				    sdp->isp_req_ack_active_neg? tru : not);
4050 				PRINTF("  Data Line Active Negation = %s\n",
4051 				    sdp->isp_data_line_active_neg? tru : not);
4052 				PRINTF("       Cmd DMA Burst Enable = %s\n",
4053 				    sdp->isp_cmd_dma_burst_enable? tru : not);
4054 			}
4055 			for (i = 0; i < MAX_TARGETS; i++) {
4056 				sdp->isp_devparam[i].dev_enable =
4057 				    ISP1080_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i, bus);
4058 				sdp->isp_devparam[i].exc_throttle =
4059 					ISP1080_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i, bus);
4060 				sdp->isp_devparam[i].sync_offset =
4061 					ISP1080_NVRAM_TGT_SYNC_OFFSET(nvram_data, i, bus);
4062 				sdp->isp_devparam[i].sync_period =
4063 					ISP1080_NVRAM_TGT_SYNC_PERIOD(nvram_data, i, bus);
4064 				sdp->isp_devparam[i].dev_flags = 0;
4065 				if (ISP1080_NVRAM_TGT_RENEG(nvram_data, i, bus))
4066 					sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
4067 				if (ISP1080_NVRAM_TGT_QFRZ(nvram_data, i, bus)) {
4068 					PRINTF("%s: not supporting QFRZ option "
4069 					    "for target %d bus %d\n",
4070 					    isp->isp_name, i, bus);
4071 				}
4072 				sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
4073 				if (ISP1080_NVRAM_TGT_ARQ(nvram_data, i, bus) == 0) {
4074 					PRINTF("%s: not disabling ARQ option "
4075 					    "for target %d bus %d\n",
4076 					    isp->isp_name, i, bus);
4077 				}
4078 				if (ISP1080_NVRAM_TGT_TQING(nvram_data, i, bus))
4079 					sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
4080 				if (ISP1080_NVRAM_TGT_SYNC(nvram_data, i, bus))
4081 					sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
4082 				if (ISP1080_NVRAM_TGT_WIDE(nvram_data, i, bus))
4083 					sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
4084 				if (ISP1080_NVRAM_TGT_PARITY(nvram_data, i, bus))
4085 					sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
4086 				if (ISP1080_NVRAM_TGT_DISC(nvram_data, i, bus))
4087 					sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
4088 				sdp->isp_devparam[i].cur_dflags = 0;
4089 				if (isp->isp_dblev >= 3) {
4090 					PRINTF("   Target %d: Ena %d Throttle "
4091 					    "%d Offset %d Period %d Flags "
4092 					    "0x%x\n", i,
4093 					    sdp->isp_devparam[i].dev_enable,
4094 					    sdp->isp_devparam[i].exc_throttle,
4095 					    sdp->isp_devparam[i].sync_offset,
4096 					    sdp->isp_devparam[i].sync_period,
4097 					    sdp->isp_devparam[i].dev_flags);
4098 				}
4099 			}
4100 		}
4101 	} else if (IS_SCSI(isp)) {
4102 		sdparam *sdp = (sdparam *) isp->isp_param;
4103 
4104 		sdp->isp_fifo_threshold =
4105 			ISP_NVRAM_FIFO_THRESHOLD(nvram_data) |
4106 			(ISP_NVRAM_FIFO_THRESHOLD_128(nvram_data) << 2);
4107 
4108 		sdp->isp_initiator_id =
4109 			ISP_NVRAM_INITIATOR_ID(nvram_data);
4110 
4111 		sdp->isp_bus_reset_delay =
4112 			ISP_NVRAM_BUS_RESET_DELAY(nvram_data);
4113 
4114 		sdp->isp_retry_count =
4115 			ISP_NVRAM_BUS_RETRY_COUNT(nvram_data);
4116 
4117 		sdp->isp_retry_delay =
4118 			ISP_NVRAM_BUS_RETRY_DELAY(nvram_data);
4119 
4120 		sdp->isp_async_data_setup =
4121 			ISP_NVRAM_ASYNC_DATA_SETUP_TIME(nvram_data);
4122 
4123 		if (isp->isp_type >= ISP_HA_SCSI_1040) {
4124 			if (sdp->isp_async_data_setup < 9) {
4125 				sdp->isp_async_data_setup = 9;
4126 			}
4127 		} else {
4128 			if (sdp->isp_async_data_setup != 6) {
4129 				sdp->isp_async_data_setup = 6;
4130 			}
4131 		}
4132 
4133 		sdp->isp_req_ack_active_neg =
4134 			ISP_NVRAM_REQ_ACK_ACTIVE_NEGATION(nvram_data);
4135 
4136 		sdp->isp_data_line_active_neg =
4137 			ISP_NVRAM_DATA_LINE_ACTIVE_NEGATION(nvram_data);
4138 
4139 		sdp->isp_data_dma_burst_enabl =
4140 			ISP_NVRAM_DATA_DMA_BURST_ENABLE(nvram_data);
4141 
4142 		sdp->isp_cmd_dma_burst_enable =
4143 			ISP_NVRAM_CMD_DMA_BURST_ENABLE(nvram_data);
4144 
4145 		sdp->isp_tag_aging =
4146 			ISP_NVRAM_TAG_AGE_LIMIT(nvram_data);
4147 
4148 		sdp->isp_selection_timeout =
4149 			ISP_NVRAM_SELECTION_TIMEOUT(nvram_data);
4150 
4151 		sdp->isp_max_queue_depth =
4152 			ISP_NVRAM_MAX_QUEUE_DEPTH(nvram_data);
4153 
4154 		isp->isp_fast_mttr = ISP_NVRAM_FAST_MTTR_ENABLE(nvram_data);
4155 		if (isp->isp_dblev > 2) {
4156 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
4157 			PRINTF("             Fifo Threshold = 0x%x\n",
4158 			    sdp->isp_fifo_threshold);
4159 			PRINTF("            Bus Reset Delay = %d\n",
4160 			    sdp->isp_bus_reset_delay);
4161 			PRINTF("                Retry Count = %d\n",
4162 			    sdp->isp_retry_count);
4163 			PRINTF("                Retry Delay = %d\n",
4164 			    sdp->isp_retry_delay);
4165 			PRINTF("              Tag Age Limit = %d\n",
4166 			    sdp->isp_tag_aging);
4167 			PRINTF("          Selection Timeout = %d\n",
4168 			    sdp->isp_selection_timeout);
4169 			PRINTF("            Max Queue Depth = %d\n",
4170 			    sdp->isp_max_queue_depth);
4171 			PRINTF("           Async Data Setup = 0x%x\n",
4172 			    sdp->isp_async_data_setup);
4173 			PRINTF("    REQ/ACK Active Negation = %s\n",
4174 			    sdp->isp_req_ack_active_neg? tru : not);
4175 			PRINTF("  Data Line Active Negation = %s\n",
4176 			    sdp->isp_data_line_active_neg? tru : not);
4177 			PRINTF("      Data DMA Burst Enable = %s\n",
4178 			    sdp->isp_data_dma_burst_enabl? tru : not);
4179 			PRINTF("       Cmd DMA Burst Enable = %s\n",
4180 			    sdp->isp_cmd_dma_burst_enable? tru : not);
4181 			PRINTF("                  Fast MTTR = %s\n",
4182 			    isp->isp_fast_mttr? tru : not);
4183 		}
4184 		for (i = 0; i < MAX_TARGETS; i++) {
4185 			sdp->isp_devparam[i].dev_enable =
4186 				ISP_NVRAM_TGT_DEVICE_ENABLE(nvram_data, i);
4187 			sdp->isp_devparam[i].exc_throttle =
4188 				ISP_NVRAM_TGT_EXEC_THROTTLE(nvram_data, i);
4189 			sdp->isp_devparam[i].sync_offset =
4190 				ISP_NVRAM_TGT_SYNC_OFFSET(nvram_data, i);
4191 			sdp->isp_devparam[i].sync_period =
4192 				ISP_NVRAM_TGT_SYNC_PERIOD(nvram_data, i);
4193 
4194 			if (isp->isp_type < ISP_HA_SCSI_1040) {
4195 				/*
4196 				 * If we're not ultra, we can't possibly
4197 				 * be a shorter period than this.
4198 				 */
4199 				if (sdp->isp_devparam[i].sync_period < 0x19) {
4200 					sdp->isp_devparam[i].sync_period =
4201 					    0x19;
4202 				}
4203 				if (sdp->isp_devparam[i].sync_offset > 0xc) {
4204 					sdp->isp_devparam[i].sync_offset =
4205 					    0x0c;
4206 				}
4207 			} else {
4208 				if (sdp->isp_devparam[i].sync_offset > 0x8) {
4209 					sdp->isp_devparam[i].sync_offset = 0x8;
4210 				}
4211 			}
4212 			sdp->isp_devparam[i].dev_flags = 0;
4213 			if (ISP_NVRAM_TGT_RENEG(nvram_data, i))
4214 				sdp->isp_devparam[i].dev_flags |= DPARM_RENEG;
4215 			if (ISP_NVRAM_TGT_QFRZ(nvram_data, i)) {
4216 				PRINTF("%s: not supporting QFRZ option for "
4217 				    "target %d\n", isp->isp_name, i);
4218 			}
4219 			sdp->isp_devparam[i].dev_flags |= DPARM_ARQ;
4220 			if (ISP_NVRAM_TGT_ARQ(nvram_data, i) == 0) {
4221 				PRINTF("%s: not disabling ARQ option for "
4222 				    "target %d\n", isp->isp_name, i);
4223 			}
4224 			if (ISP_NVRAM_TGT_TQING(nvram_data, i))
4225 				sdp->isp_devparam[i].dev_flags |= DPARM_TQING;
4226 			if (ISP_NVRAM_TGT_SYNC(nvram_data, i))
4227 				sdp->isp_devparam[i].dev_flags |= DPARM_SYNC;
4228 			if (ISP_NVRAM_TGT_WIDE(nvram_data, i))
4229 				sdp->isp_devparam[i].dev_flags |= DPARM_WIDE;
4230 			if (ISP_NVRAM_TGT_PARITY(nvram_data, i))
4231 				sdp->isp_devparam[i].dev_flags |= DPARM_PARITY;
4232 			if (ISP_NVRAM_TGT_DISC(nvram_data, i))
4233 				sdp->isp_devparam[i].dev_flags |= DPARM_DISC;
4234 			sdp->isp_devparam[i].cur_dflags = 0; /* we don't know */
4235 			if (isp->isp_dblev > 2) {
4236 				PRINTF("   Target %d: Enabled %d Throttle %d "
4237 				    "Offset %d Period %d Flags 0x%x\n", i,
4238 				    sdp->isp_devparam[i].dev_enable,
4239 				    sdp->isp_devparam[i].exc_throttle,
4240 				    sdp->isp_devparam[i].sync_offset,
4241 				    sdp->isp_devparam[i].sync_period,
4242 				    sdp->isp_devparam[i].dev_flags);
4243 			}
4244 		}
4245 	} else {
4246 		fcparam *fcp = (fcparam *) isp->isp_param;
4247 		union {
4248 			struct {
4249 #if	BYTE_ORDER == BIG_ENDIAN
4250 				u_int32_t hi32;
4251 				u_int32_t lo32;
4252 #else
4253 				u_int32_t lo32;
4254 				u_int32_t hi32;
4255 #endif
4256 			} wd;
4257 			u_int64_t full64;
4258 		} wwnstore;
4259 
4260 		wwnstore.full64 = ISP2100_NVRAM_NODE_NAME(nvram_data);
4261 		/*
4262 		 * Broken PTI cards with nothing in the top nibble. Pah.
4263 		 */
4264 		if ((wwnstore.wd.hi32 >> 28) == 0) {
4265 			wwnstore.wd.hi32 |= (2 << 28);
4266 			CFGPRINTF("%s: (corrected) Adapter WWN 0x%08x%08x\n",
4267 			    isp->isp_name, wwnstore.wd.hi32, wwnstore.wd.lo32);
4268 		} else {
4269 			CFGPRINTF("%s: Adapter WWN 0x%08x%08x\n", isp->isp_name,
4270 			    wwnstore.wd.hi32, wwnstore.wd.lo32);
4271 		}
4272 		fcp->isp_nodewwn = wwnstore.full64;
4273 
4274 		/*
4275 		 * If the Node WWN has 2 in the top nibble, we can
4276 		 * authoritatively construct a Port WWN by adding
4277 		 * our unit number (plus one to make it nonzero) and
4278 		 * putting it into bits 59..56. If the top nibble isn't
4279 		 * 2, then we just set them identically.
4280 		 */
4281 		if ((fcp->isp_nodewwn >> 60) == 2) {
4282 			fcp->isp_portwwn = fcp->isp_nodewwn |
4283 			    (((u_int64_t)(isp->isp_unit+1)) << 56);
4284 		} else {
4285 			fcp->isp_portwwn = fcp->isp_nodewwn;
4286 		}
4287 		wwnstore.full64 = ISP2100_NVRAM_BOOT_NODE_NAME(nvram_data);
4288 		if (wwnstore.full64 != 0) {
4289 			PRINTF("%s: BOOT DEVICE WWN 0x%08x%08x\n",
4290 			    isp->isp_name, wwnstore.wd.hi32, wwnstore.wd.lo32);
4291 		}
4292 		fcp->isp_maxalloc =
4293 			ISP2100_NVRAM_MAXIOCBALLOCATION(nvram_data);
4294 		fcp->isp_maxfrmlen =
4295 			ISP2100_NVRAM_MAXFRAMELENGTH(nvram_data);
4296 		fcp->isp_retry_delay =
4297 			ISP2100_NVRAM_RETRY_DELAY(nvram_data);
4298 		fcp->isp_retry_count =
4299 			ISP2100_NVRAM_RETRY_COUNT(nvram_data);
4300 		fcp->isp_loopid =
4301 			ISP2100_NVRAM_HARDLOOPID(nvram_data);
4302 		fcp->isp_execthrottle =
4303 			ISP2100_NVRAM_EXECUTION_THROTTLE(nvram_data);
4304 		fcp->isp_fwoptions = ISP2100_NVRAM_OPTIONS(nvram_data);
4305 		if (isp->isp_dblev > 2) {
4306 			PRINTF("%s: NVRAM values:\n", isp->isp_name);
4307 			PRINTF("  Max IOCB Allocation = %d\n",
4308 			    fcp->isp_maxalloc);
4309 			PRINTF("     Max Frame Length = %d\n",
4310 			    fcp->isp_maxfrmlen);
4311 			PRINTF("   Execution Throttle = %d\n",
4312 			    fcp->isp_execthrottle);
4313 			PRINTF("          Retry Count = %d\n",
4314 			    fcp->isp_retry_count);
4315 			PRINTF("          Retry Delay = %d\n",
4316 			    fcp->isp_retry_delay);
4317 			PRINTF("         Hard Loop ID = %d\n",
4318 			    fcp->isp_loopid);
4319 			PRINTF("              Options = 0x%x\n",
4320 			    fcp->isp_fwoptions);
4321 			PRINTF("          HBA Options = 0x%x\n",
4322 			    ISP2100_NVRAM_HBA_OPTIONS(nvram_data));
4323 		}
4324 	}
4325 	IDPRINTF(3, ("%s: NVRAM is valid\n", isp->isp_name));
4326 	return (0);
4327 }
4328 
4329 static void
4330 isp_rdnvram_word(isp, wo, rp)
4331 	struct ispsoftc *isp;
4332 	int wo;
4333 	u_int16_t *rp;
4334 {
4335 	int i, cbits;
4336 	u_int16_t bit, rqst;
4337 
4338 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
4339 	SYS_DELAY(2);
4340 	ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
4341 	SYS_DELAY(2);
4342 
4343 	if (IS_FC(isp)) {
4344 		wo &= ((ISP2100_NVRAM_SIZE >> 1) - 1);
4345 		rqst = (ISP_NVRAM_READ << 8) | wo;
4346 		cbits = 10;
4347 	} else if (IS_1080(isp) || IS_12X0(isp)) {
4348 		wo &= ((ISP1080_NVRAM_SIZE >> 1) - 1);
4349 		rqst = (ISP_NVRAM_READ << 8) | wo;
4350 		cbits = 10;
4351 	} else {
4352 		wo &= ((ISP_NVRAM_SIZE >> 1) - 1);
4353 		rqst = (ISP_NVRAM_READ << 6) | wo;
4354 		cbits = 8;
4355 	}
4356 
4357 	/*
4358 	 * Clock the word select request out...
4359 	 */
4360 	for (i = cbits; i >= 0; i--) {
4361 		if ((rqst >> i) & 1) {
4362 			bit = BIU_NVRAM_SELECT | BIU_NVRAM_DATAOUT;
4363 		} else {
4364 			bit = BIU_NVRAM_SELECT;
4365 		}
4366 		ISP_WRITE(isp, BIU_NVRAM, bit);
4367 		SYS_DELAY(2);
4368 		ISP_WRITE(isp, BIU_NVRAM, bit | BIU_NVRAM_CLOCK);
4369 		SYS_DELAY(2);
4370 		ISP_WRITE(isp, BIU_NVRAM, bit);
4371 		SYS_DELAY(2);
4372 	}
4373 	/*
4374 	 * Now read the result back in (bits come back in MSB format).
4375 	 */
4376 	*rp = 0;
4377 	for (i = 0; i < 16; i++) {
4378 		u_int16_t rv;
4379 		*rp <<= 1;
4380 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT|BIU_NVRAM_CLOCK);
4381 		SYS_DELAY(2);
4382 		rv = ISP_READ(isp, BIU_NVRAM);
4383 		if (rv & BIU_NVRAM_DATAIN) {
4384 			*rp |= 1;
4385 		}
4386 		SYS_DELAY(2);
4387 		ISP_WRITE(isp, BIU_NVRAM, BIU_NVRAM_SELECT);
4388 		SYS_DELAY(2);
4389 	}
4390 	ISP_WRITE(isp, BIU_NVRAM, 0);
4391 	SYS_DELAY(2);
4392 #if	BYTE_ORDER == BIG_ENDIAN
4393 	*rp = ((*rp >> 8) | ((*rp & 0xff) << 8));
4394 #endif
4395 }
4396