xref: /original-bsd/sys/vax/mba/hp.c (revision dd262573)
1 /*
2  * Copyright (c) 1982, 1986 Regents of the University of California.
3  * All rights reserved.  The Berkeley software License Agreement
4  * specifies the terms and conditions for redistribution.
5  *
6  *	@(#)hp.c	7.21 (Berkeley) 12/16/90
7  */
8 
9 #ifdef HPDEBUG
10 int	hpdebug;
11 #endif
12 #ifdef HPBDEBUG
13 int	hpbdebug;
14 #endif
15 
16 #include "hp.h"
17 #if NHP > 0
18 /*
19  * HP disk driver for RP0x+RMxx+ML11
20  *
21  * TODO:
22  *	see if DCLR and/or RELEASE set attention status
23  */
24 #include "sys/param.h"
25 #include "sys/systm.h"
26 #include "sys/dkstat.h"
27 #include "sys/buf.h"
28 #include "sys/conf.h"
29 #include "sys/file.h"
30 #include "sys/user.h"
31 #include "sys/map.h"
32 #include "../include/mtpr.h"
33 #include "sys/vm.h"
34 #include "sys/cmap.h"
35 #include "sys/dkbad.h"
36 #include "sys/disklabel.h"
37 #include "sys/ioctl.h"
38 #include "sys/syslog.h"
39 #include "sys/stat.h"
40 
41 #include "../include/pte.h"
42 #include "../vax/dkio.h"
43 #include "mbareg.h"
44 #include "mbavar.h"
45 #include "hpreg.h"
46 
47 #define	COMPAT_42
48 #define	B_FORMAT	B_XXX
49 
50 /*
51  * Table of supported Massbus drive types.
52  * When using unlabeled packs, slot numbers here
53  * are used as indices into the partition tables.
54  * Slots are left for those drives divined from other means
55  * (e.g. SI, AMPEX, etc.).
56  */
57 short	hptypes[] = {
58 #define	HPDT_RM03	0
59 	MBDT_RM03,
60 #define	HPDT_RM05	1
61 	MBDT_RM05,
62 #define	HPDT_RP06	2
63 	MBDT_RP06,
64 #define	HPDT_RM80	3
65 	MBDT_RM80,
66 #define	HPDT_RP04	4
67 	MBDT_RP04,
68 #define	HPDT_RP05	5
69 	MBDT_RP05,
70 #define	HPDT_RP07	6
71 	MBDT_RP07,
72 #define	HPDT_ML11A	7
73 	MBDT_ML11A,
74 #define	HPDT_ML11B	8
75 	MBDT_ML11B,
76 #define	HPDT_9775	9
77 	-1,
78 #define	HPDT_9730	10
79 	-1,
80 #define	HPDT_CAPRICORN	11
81 	-1,
82 #define HPDT_EAGLE	12
83 	-1,
84 #define	HPDT_9300	13
85 	-1,
86 #define HPDT_RM02	14
87 	MBDT_RM02,		/* beware, actually mapped */
88 #define HPDT_2361	15
89 	-1,
90 #define HPDT_2361A	16
91 	-1,
92 	0
93 };
94 
95 struct	mba_device *hpinfo[NHP];
96 int	hpattach(),hpustart(),hpstart(),hpdtint(),hpstrategy();
97 struct	mba_driver hpdriver =
98 	{ hpattach, 0, hpustart, hpstart, hpdtint, 0,
99 	  hptypes, "hp", 0, hpinfo };
100 
101 u_char	hp_offset[16] = {
102     HPOF_P400, HPOF_M400, HPOF_P400, HPOF_M400,
103     HPOF_P800, HPOF_M800, HPOF_P800, HPOF_M800,
104     HPOF_P1200, HPOF_M1200, HPOF_P1200, HPOF_M1200,
105     0, 0, 0, 0,
106 };
107 
108 struct	disklabel hplabel[NHP];
109 struct	dkbad	hpbad[NHP];
110 
111 struct	hpsoftc {
112 	u_char	sc_recal;	/* recalibrate state */
113 	u_char	sc_doseeks;	/* perform explicit seeks */
114 #ifdef COMPAT_42
115 	u_char	sc_hdr;		/* next i/o includes header */
116 #endif
117 	int	sc_state;	/* open fsm */
118 	int	sc_wlabel;	/* label sector is currently writable */
119 	u_long	sc_openpart;	/* bit mask of open subunits */
120 	u_long	sc_copenpart;	/* bit mask of open character subunits */
121 	u_long	sc_bopenpart;	/* bit mask of open block subunits */
122 	daddr_t	sc_mlsize;	/* ML11 size */
123 	int	sc_blkdone;	/* amount sucessfully transfered */
124 	daddr_t	sc_badbn;	/* replacement block number */
125 	int	sc_status;	/* copy of drive status reg. after format */
126 	int	sc_hpds;	/* copy of hpds reg. after format */
127 	int	sc_er1;		/* copy of error reg. 1 after format */
128 	int	sc_er2;		/* copy of error reg. 2 after format */
129 } hpsoftc[NHP];
130 
131 /*
132  * Drive states.  Used during steps of open/initialization.
133  * States < OPEN (> 0) are transient, during an open operation.
134  * OPENRAW is used for unlabeled disks,
135  * to inhibit bad-sector forwarding or allow format operations.
136  */
137 #define	CLOSED		0		/* disk is closed. */
138 #define	WANTOPEN	1		/* open requested, not started */
139 #define	WANTOPENRAW	2		/* open requested, no label */
140 #define	RDLABEL		3		/* reading pack label */
141 #define	RDBADTBL	4		/* reading bad-sector table */
142 #define	OPEN		5		/* initialized and ready */
143 #define	OPENRAW		6		/* open, no label or badsect */
144 
145 #define	b_cylin b_resid
146 
147 /* #define ML11 0  to remove ML11 support */
148 #define	ML11(type)	((type) == HPDT_ML11A)
149 #define	RP06(type)	(hptypes[type] <= MBDT_RP06)
150 #define	RM80(type)	((type) == HPDT_RM80)
151 
152 #define hpunit(dev)	(minor(dev) >> 3)
153 #define hppart(dev)	(minor(dev) & 07)
154 #define hpminor(unit, part)	(((unit) << 3) | (part))
155 
156 #define	MASKREG(reg)	((reg)&0xffff)
157 #ifdef lint
158 #define HPWAIT(mi, addr) (hpwait(mi))
159 #else
160 #define HPWAIT(mi, addr) (((addr)->hpds & HPDS_DRY) || hpwait(mi))
161 #endif
162 
163 /*ARGSUSED*/
164 hpattach(mi, slave)
165 	struct mba_device *mi;
166 {
167 	register int unit = mi->mi_unit;
168 	extern int cold;
169 
170 	if (cold) {
171 		/*
172 		 * Try to initialize device and read pack label.
173 		 */
174 		if (hpinit(hpminor(unit, 0), 0) == 0) {
175 			printf(": %s", hplabel[unit].d_typename);
176 #ifdef notyet
177 			addswap(makedev(HPMAJOR, hpminor(unit, 0)),
178 			    &hplabel[unit]);
179 #endif
180 		} else
181 			printf(": offline");
182 	}
183 }
184 
185 hpopen(dev, flags, fmt)
186 	dev_t dev;
187 	int flags, fmt;
188 {
189 	register int unit = hpunit(dev);
190 	register struct hpsoftc *sc;
191 	register struct disklabel *lp;
192 	register struct partition *pp;
193 	struct mba_device *mi;
194 	int s, error, part = hppart(dev), mask = 1 << part;
195 	daddr_t start, end;
196 
197 	if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0)
198 		return (ENXIO);
199 	sc = &hpsoftc[unit];
200 	lp = &hplabel[unit];
201 
202 	s = spl5();
203 	while (sc->sc_state != OPEN && sc->sc_state != OPENRAW &&
204 	    sc->sc_state != CLOSED)
205 		if (error = tsleep((caddr_t)sc, (PZERO+1) | PCATCH,
206 		    devopn, 0)) {
207 			splx(s);
208 			return (error);
209 		}
210 	splx(s);
211 	if (sc->sc_state != OPEN && sc->sc_state != OPENRAW)
212 		if (error = hpinit(dev, flags))
213 			return (error);
214 	if (part >= lp->d_npartitions)
215 		return (ENXIO);
216 	/*
217 	 * Warn if a partion is opened
218 	 * that overlaps another partition which is open
219 	 * unless one is the "raw" partition (whole disk).
220 	 */
221 #define	RAWPART		2		/* 'c' partition */	/* XXX */
222 	if ((sc->sc_openpart & mask) == 0 && part != RAWPART) {
223 		pp = &lp->d_partitions[part];
224 		start = pp->p_offset;
225 		end = pp->p_offset + pp->p_size;
226 		for (pp = lp->d_partitions;
227 		     pp < &lp->d_partitions[lp->d_npartitions]; pp++) {
228 			if (pp->p_offset + pp->p_size <= start ||
229 			    pp->p_offset >= end)
230 				continue;
231 			if (pp - lp->d_partitions == RAWPART)
232 				continue;
233 			if (sc->sc_openpart & (1 << (pp - lp->d_partitions)))
234 				log(LOG_WARNING,
235 				    "hp%d%c: overlaps open partition (%c)\n",
236 				    unit, part + 'a',
237 				    pp - lp->d_partitions + 'a');
238 		}
239 	}
240 	switch (fmt) {
241 	case S_IFCHR:
242 		sc->sc_copenpart |= mask;
243 		break;
244 	case S_IFBLK:
245 		sc->sc_bopenpart |= mask;
246 		break;
247 	}
248 	sc->sc_openpart |= mask;
249 	return (0);
250 }
251 
252 /* ARGSUSED */
253 hpclose(dev, flags, fmt)
254 	dev_t dev;
255 	int flags, fmt;
256 {
257 	register int unit = hpunit(dev);
258 	register struct hpsoftc *sc;
259 	struct mba_device *mi;
260 	int s, mask = 1 << hppart(dev);
261 
262 	sc = &hpsoftc[unit];
263 	mi = hpinfo[unit];
264 	switch (fmt) {
265 	case S_IFCHR:
266 		sc->sc_copenpart &= ~mask;
267 		break;
268 	case S_IFBLK:
269 		sc->sc_bopenpart &= ~mask;
270 		break;
271 	}
272 	sc->sc_openpart = sc->sc_copenpart | sc->sc_bopenpart;
273 
274 	/*
275 	 * Should wait for I/O to complete on this partition
276 	 * even if others are open, but wait for work on blkflush().
277 	 */
278 	if (sc->sc_openpart == 0) {
279 		s = spl5();
280 		while (mi->mi_tab.b_actf)
281 			sleep((caddr_t)sc, PZERO - 1);
282 		splx(s);
283 		sc->sc_state = CLOSED;
284 		sc->sc_wlabel = 0;
285 	}
286 	return (0);
287 }
288 
289 hpinit(dev, flags)
290 	dev_t dev;
291 	int flags;
292 {
293 	register struct hpsoftc *sc;
294 	register struct buf *bp;
295 	register struct disklabel *lp;
296 	struct mba_device *mi;
297 	struct hpdevice *hpaddr;
298 	struct dkbad *db;
299 	char *msg, *readdisklabel();
300 	int unit, i, error = 0;
301 
302 	unit = hpunit(dev);
303 	sc = &hpsoftc[unit];
304 	lp = &hplabel[unit];
305 	mi = hpinfo[unit];
306 	hpaddr = (struct hpdevice *)mi->mi_drv;
307 
308 	sc->sc_state = WANTOPEN;
309 	/*
310 	 * Use the default sizes until we've read the label,
311 	 * or longer if there isn't one there.
312 	 */
313 	if (lp->d_secpercyl == 0) {
314 		lp->d_secsize = DEV_BSIZE;
315 		lp->d_nsectors = 32;
316 		lp->d_ntracks = 20;
317 		lp->d_secpercyl = 32*20;
318 		lp->d_npartitions = 1;
319 		lp->d_partitions[0].p_offset = 0;
320 		lp->d_partitions[0].p_size = LABELSECTOR + 1;
321 	}
322 
323 	if (flags & O_NDELAY)
324 		goto raw;
325 
326 	/*
327 	 * Map all ML11's to the same type.  Also calculate
328 	 * transfer rates based on device characteristics.
329 	 * Set up dummy label with all that's needed.
330 	 */
331 	if (mi->mi_type == MBDT_ML11A || mi->mi_type == MBDT_ML11B) {
332 		register int trt;
333 
334 		sc->sc_mlsize = hpaddr->hpmr & HPMR_SZ;
335 		if ((hpaddr->hpmr & HPMR_ARRTYP) == 0)
336 			sc->sc_mlsize >>= 2;
337 		if (mi->mi_dk >= 0) {
338 			trt = (hpaddr->hpmr & HPMR_TRT) >> 8;
339 			dk_wpms[mi->mi_dk] = (1<<(20-trt));
340 		}
341 		mi->mi_type = MBDT_ML11A;
342 		lp->d_partitions[0].p_size = sc->sc_mlsize;
343 		lp->d_secpercyl = sc->sc_mlsize;
344 		goto raw;
345 	}
346 
347 	/*
348 	 * Preset, pack acknowledge will be done in hpstart
349 	 * during first read operation.
350 	 */
351 	if (msg = readdisklabel(dev, hpstrategy, lp)) {
352 		if (cold)
353 			printf(": %s", msg);
354 		else
355 			log(LOG_ERR, "hp%d: %s\n", unit, msg);
356 #ifdef COMPAT_42
357 		if (hpmaptype(mi, lp) == 0)
358 #endif
359 		goto raw;
360 	}
361 
362 	/*
363 	 * Seconds per word = (60 / rpm) / (nsectors * secsize/2)
364 	 */
365 	if (mi->mi_dk >= 0 && lp->d_rpm)
366 		dk_wpms[mi->mi_dk] =
367 		    (lp->d_rpm * lp->d_nsectors * lp->d_secsize) / 120;
368 	/*
369 	 * Read bad sector table into memory.
370 	 */
371 	bp = geteblk(DEV_BSIZE);		/* max sector size */
372 	bp->b_dev = dev;
373 	sc->sc_state = RDBADTBL;
374 	i = 0;
375 	do {
376 		bp->b_flags = B_BUSY | B_READ;
377 		bp->b_blkno = lp->d_secperunit - lp->d_nsectors + i;
378 		bp->b_bcount = lp->d_secsize;
379 		bp->b_cylin = lp->d_ncylinders - 1;
380 		hpstrategy(bp);
381 		(void) biowait(bp);
382 	} while ((bp->b_flags & B_ERROR) && (i += 2) < 10 &&
383 	    i < lp->d_nsectors);
384 	db = (struct dkbad *)(bp->b_un.b_addr);
385 	if ((bp->b_flags & B_ERROR) == 0 && db->bt_mbz == 0 &&
386 	    db->bt_flag == 0) {
387 		hpbad[unit] = *db;
388 	} else
389 		log(LOG_ERR, "hp%d: %s bad-sector file\n", unit,
390 		    (bp->b_flags & B_ERROR) ? "can't read" : "format error in");
391 	sc->sc_state = OPEN;
392 	bp->b_flags = B_INVAL | B_AGE;
393 	brelse(bp);
394 	wakeup((caddr_t)sc);
395 	return (error);
396 
397 raw:
398 	if (cold)
399 		sc->sc_state = CLOSED;
400 	else {
401 		sc->sc_state = OPENRAW;
402 		wakeup((caddr_t)sc);
403 	}
404 	return (error);
405 }
406 
407 hpstrategy(bp)
408 	register struct buf *bp;
409 {
410 	register struct mba_device *mi;
411 	register struct disklabel *lp;
412 	register struct hpsoftc *sc;
413 	register int unit;
414 	daddr_t sz, maxsz;
415 	int xunit = hppart(bp->b_dev);
416 	int s;
417 
418 	sz = (bp->b_bcount + DEV_BSIZE - 1) >> DEV_BSHIFT;
419 	unit = hpunit(bp->b_dev);
420 	if (unit >= NHP) {
421 		bp->b_error = ENXIO;
422 		goto bad;
423 	}
424 	mi = hpinfo[unit];
425 	sc = &hpsoftc[unit];
426 	lp = &hplabel[unit];
427 	if (mi == 0 || mi->mi_alive == 0) {
428 		bp->b_error = ENXIO;
429 		goto bad;
430 	}
431 #ifdef COMPAT_42
432 	if (sc->sc_hdr) {				/* XXX */
433 		if (bp->b_bcount == 516)
434 			bp->b_flags |= B_FORMAT;
435 		sc->sc_hdr = 0;
436 	}
437 #endif
438 	if (sc->sc_state < OPEN)
439 		goto q;
440 	if (sc->sc_state != OPEN && (bp->b_flags & (B_READ|B_FORMAT)) == 0) {
441 		bp->b_error = EROFS;
442 		goto bad;
443 	}
444 	if ((sc->sc_openpart & (1 << xunit)) == 0) {
445 		bp->b_error = ENODEV;
446 		goto bad;
447 	}
448 	maxsz = lp->d_partitions[xunit].p_size;
449 	if (bp->b_blkno + lp->d_partitions[xunit].p_offset <= LABELSECTOR &&
450 #if LABELSECTOR != 0
451 	    bp->b_blkno + lp->d_partitions[xunit].p_offset + sz > LABELSECTOR &&
452 #endif
453 	    (bp->b_flags & B_READ) == 0 && sc->sc_wlabel == 0) {
454 		bp->b_error = EROFS;
455 		goto bad;
456 	}
457 	if (bp->b_blkno < 0 || bp->b_blkno + sz > maxsz) {
458 		if (bp->b_blkno == maxsz) {
459 			bp->b_resid = bp->b_bcount;
460 			goto done;
461 		}
462 		sz = maxsz - bp->b_blkno;
463 		if (sz <= 0) {
464 			bp->b_error = EINVAL;
465 			goto bad;
466 		}
467 		bp->b_bcount = sz << DEV_BSHIFT;
468 	}
469 	bp->b_cylin = (bp->b_blkno + lp->d_partitions[xunit].p_offset) /
470 	    lp->d_secpercyl;
471 q:
472 	s = spl5();
473 	disksort(&mi->mi_tab, bp);
474 	if (mi->mi_tab.b_active == 0)
475 		mbustart(mi);
476 	splx(s);
477 	return;
478 
479 bad:
480 	bp->b_flags |= B_ERROR;
481 done:
482 	biodone(bp);
483 	return;
484 }
485 
486 hpustart(mi)
487 	register struct mba_device *mi;
488 {
489 	register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv;
490 	register struct buf *bp = mi->mi_tab.b_actf;
491 	register struct disklabel *lp;
492 	struct hpsoftc *sc = &hpsoftc[mi->mi_unit];
493 	daddr_t bn;
494 	int sn, tn, dist;
495 
496 	lp = &hplabel[mi->mi_unit];
497 	hpaddr->hpcs1 = 0;
498 	if ((hpaddr->hpcs1&HP_DVA) == 0)
499 		return (MBU_BUSY);
500 
501 	switch (sc->sc_recal) {
502 
503 	case 1:
504 		(void)HPWAIT(mi, hpaddr);
505 		hpaddr->hpdc = bp->b_cylin;
506 		hpaddr->hpcs1 = HP_SEEK|HP_GO;
507 		sc->sc_recal++;
508 		return (MBU_STARTED);
509 	case 2:
510 		break;
511 	}
512 	sc->sc_recal = 0;
513 	if ((hpaddr->hpds & HPDS_VV) == 0) {
514 		if (sc->sc_state == OPEN && lp->d_flags & D_REMOVABLE) {
515 			if (sc->sc_openpart)
516 				log(LOG_ERR, "hp%d: volume changed\n",
517 				    mi->mi_unit);
518 			sc->sc_openpart = 0;
519 			bp->b_flags |= B_ERROR;
520 			return (MBU_NEXT);
521 		}
522 		hpaddr->hpcs1 = HP_DCLR|HP_GO;
523 		if (mi->mi_mba->mba_drv[0].mbd_as & (1<<mi->mi_drive))
524 			printf("DCLR attn\n");
525 		hpaddr->hpcs1 = HP_PRESET|HP_GO;
526 		if (!ML11(mi->mi_type))
527 			hpaddr->hpof = HPOF_FMT22;
528 		mbclrattn(mi);
529 		if (sc->sc_state == WANTOPENRAW) {
530 			sc->sc_state = OPENRAW;
531 			return (MBU_NEXT);
532 		}
533 		if (sc->sc_state == WANTOPEN)
534 			sc->sc_state = RDLABEL;
535 	}
536 	if (mi->mi_tab.b_active || mi->mi_hd->mh_ndrive == 1) {
537 		if (mi->mi_tab.b_errcnt >= 16 && (bp->b_flags & B_READ)) {
538 			hpaddr->hpof =
539 			    hp_offset[mi->mi_tab.b_errcnt & 017]|HPOF_FMT22;
540 			hpaddr->hpcs1 = HP_OFFSET|HP_GO;
541 			(void)HPWAIT(mi, hpaddr);
542 			mbclrattn(mi);
543 		}
544 		return (MBU_DODATA);
545 	}
546 	if (ML11(mi->mi_type))
547 		return (MBU_DODATA);
548 	if ((hpaddr->hpds & HPDS_DREADY) != HPDS_DREADY)
549 		return (MBU_DODATA);
550 	bn = bp->b_blkno;
551 	sn = bn % lp->d_secpercyl;
552 	tn = sn / lp->d_nsectors;
553 	sn = sn % lp->d_nsectors;
554 	if (bp->b_cylin == MASKREG(hpaddr->hpdc)) {
555 		if (sc->sc_doseeks)
556 			return (MBU_DODATA);
557 		dist = sn - (MASKREG(hpaddr->hpla) >> 6) - 1;
558 		if (dist < 0)
559 			dist += lp->d_nsectors;
560 		if (dist <= lp->d_maxdist && dist >= lp->d_mindist)
561 			return (MBU_DODATA);
562 	} else
563 		hpaddr->hpdc = bp->b_cylin;
564 	if (sc->sc_doseeks)
565 		hpaddr->hpcs1 = HP_SEEK|HP_GO;
566 	else {
567 		sn = (sn + lp->d_nsectors - lp->d_sdist) % lp->d_nsectors;
568 		hpaddr->hpda = (tn << 8) + sn;
569 		hpaddr->hpcs1 = HP_SEARCH|HP_GO;
570 	}
571 	return (MBU_STARTED);
572 }
573 
574 hpstart(mi)
575 	register struct mba_device *mi;
576 {
577 	register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv;
578 	register struct buf *bp = mi->mi_tab.b_actf;
579 	register struct disklabel *lp = &hplabel[mi->mi_unit];
580 	struct hpsoftc *sc = &hpsoftc[mi->mi_unit];
581 	daddr_t bn;
582 	int sn, tn, cn;
583 
584 	if (ML11(mi->mi_type))
585 		hpaddr->hpda = bp->b_blkno + sc->sc_blkdone;
586 	else {
587 		if (bp->b_flags & B_BAD) {
588 			bn = sc->sc_badbn;
589 			cn = bn / lp->d_secpercyl;
590 		} else {
591 			bn = bp->b_blkno;
592 			cn = bp->b_cylin;
593 		}
594 		sn = bn % lp->d_secpercyl;
595 		if ((bp->b_flags & B_BAD) == 0)
596 			sn += sc->sc_blkdone;
597 		tn = sn / lp->d_nsectors;
598 		sn %= lp->d_nsectors;
599 		cn += tn / lp->d_ntracks;
600 		tn %= lp->d_ntracks;
601 		hpaddr->hpda = (tn << 8) + sn;
602 		hpaddr->hpdc = cn;
603 	}
604 	mi->mi_tab.b_bdone = dbtob(sc->sc_blkdone);
605 	if (bp->b_flags & B_FORMAT) {
606 		if (bp->b_flags & B_READ)
607 			return (HP_RHDR|HP_GO);
608 		else
609 			return (HP_WHDR|HP_GO);
610 	}
611 	return (0);
612 }
613 
614 hpdtint(mi, mbsr)
615 	register struct mba_device *mi;
616 	int mbsr;
617 {
618 	register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv;
619 	register struct buf *bp = mi->mi_tab.b_actf;
620 	register int er1, er2;
621 	struct hpsoftc *sc = &hpsoftc[mi->mi_unit];
622 	int retry = 0;
623 	int npf, bcr;
624 
625 	bcr = MASKREG(-mi->mi_mba->mba_bcr);
626 	if (bp->b_flags & B_FORMAT) {
627 		sc->sc_status = mbsr;
628 		sc->sc_hpds = hpaddr->hpds;
629 		sc->sc_er1 = hpaddr->hper1;
630 		sc->sc_er2 = hpaddr->hper2;
631 	}
632 	if (hpaddr->hpds&HPDS_ERR || mbsr&MBSR_EBITS) {
633 		er1 = hpaddr->hper1;
634 		er2 = hpaddr->hper2;
635 		if (bp->b_flags & B_BAD)
636 			npf = bp->b_error;
637 		else {
638 			npf = btodb(bp->b_bcount + (DEV_BSIZE - 1) - bcr);
639 			if (er1 & (HPER1_DCK | HPER1_ECH))
640 				npf--;
641 		}
642 		if (HPWAIT(mi, hpaddr) == 0)
643 			goto hard;
644 #ifdef HPDEBUG
645 		if (hpdebug) {
646 			int dc = hpaddr->hpdc, da = hpaddr->hpda;
647 			daddr_t bn;
648 
649 			if (bp->b_flags & B_BAD)
650 				bn = sc->sc_badbn;
651 			else
652 				bn = bp->b_blkno + npf;
653 			log(LOG_DEBUG,
654 		    "hperr: bp %x cyl %d blk %d blkdone %d as %o dc %x da %x\n",
655 				bp, bp->b_cylin, bn, sc->sc_blkdone,
656 				hpaddr->hpas&0xff, MASKREG(dc), MASKREG(da));
657 			log(LOG_DEBUG,
658 				"errcnt %d mbsr=%b er1=%b er2=%b bcr -%d\n",
659 				mi->mi_tab.b_errcnt, mbsr, mbsr_bits,
660 				MASKREG(er1), HPER1_BITS,
661 				MASKREG(er2), HPER2_BITS, bcr);
662 		}
663 #endif
664 		if (er1 & HPER1_HCRC) {
665 			er1 &= ~(HPER1_HCE|HPER1_FER);
666 			er2 &= ~HPER2_BSE;
667 		}
668 		if (er1 & HPER1_WLE) {
669 			log(LOG_WARNING, "hp%d: write locked\n",
670 			    hpunit(bp->b_dev));
671 			bp->b_flags |= B_ERROR;
672 		} else if (bp->b_flags & B_FORMAT) {
673 			bp->b_flags |= B_ERROR;
674 		} else if (RM80(mi->mi_type) && er2&HPER2_SSE) {
675 			(void) hpecc(mi, SSE);
676 			return (MBD_RESTARTED);
677 		} else if ((er2 & HPER2_BSE) && !ML11(mi->mi_type)) {
678 			if (hpecc(mi, BSE))
679 				return (MBD_RESTARTED);
680 			goto hard;
681 		} else if (MASKREG(er1) == HPER1_FER && RP06(mi->mi_type)) {
682 			if (hpecc(mi, BSE))
683 				return (MBD_RESTARTED);
684 			goto hard;
685 		} else if ((er1 & (HPER1_DCK | HPER1_ECH)) == HPER1_DCK &&
686 		    mi->mi_tab.b_errcnt >= 3) {
687 			if (hpecc(mi, ECC))
688 				return (MBD_RESTARTED);
689 			/*
690 			 * ECC corrected.  Only log retries below
691 			 * if we got errors other than soft ECC
692 			 * (as indicated by additional retries).
693 			 */
694 			if (mi->mi_tab.b_errcnt == 3)
695 				mi->mi_tab.b_errcnt = 0;
696 		} else if ((er1 & HPER1_HCRC) && !ML11(mi->mi_type) &&
697 		    hpecc(mi, BSE)) {
698  			/*
699  			 * HCRC means the header is screwed up and the sector
700  			 * might well exist in the bad sector table,
701 			 * better check....
702  			 */
703 			return (MBD_RESTARTED);
704 		} else if (++mi->mi_tab.b_errcnt > 27 ||
705 		    (ML11(mi->mi_type) && mi->mi_tab.b_errcnt > 15) ||
706 		    mbsr & MBSR_HARD ||
707 		    er1 & HPER1_HARD ||
708 		    (!ML11(mi->mi_type) && (er2 & HPER2_HARD))) {
709 hard:
710 			diskerr(bp, "hp", "hard error", LOG_PRINTF, npf,
711 			    &hplabel[mi->mi_unit]);
712 			if (bp->b_flags & B_BAD)
713 				printf(" (on replacement sector %d)",
714 				    sc->sc_badbn);
715 			if (mbsr & (MBSR_EBITS &~ (MBSR_DTABT|MBSR_MBEXC)))
716 				printf(" mbsr=%b", mbsr, mbsr_bits);
717 			printf(" er1=%b er2=%b ds=%b\n",
718 			    MASKREG(hpaddr->hper1), HPER1_BITS,
719 			    MASKREG(hpaddr->hper2), HPER2_BITS,
720 			    MASKREG(hpaddr->hpds), HPDS_BITS);
721 			bp->b_flags |= B_ERROR;
722 			bp->b_flags &= ~B_BAD;
723 		} else
724 			retry = 1;
725 		hpaddr->hpcs1 = HP_DCLR|HP_GO;
726 		if (retry && (mi->mi_tab.b_errcnt & 07) == 4) {
727 			hpaddr->hpcs1 = HP_RECAL|HP_GO;
728 			sc->sc_recal = 1;
729 			return (MBD_REPOSITION);
730 		}
731 	}
732 #ifdef HPDEBUG
733 	else
734 		if (hpdebug && sc->sc_recal) {
735 			log(LOG_DEBUG,
736 			    "recal %d errcnt %d mbsr=%b er1=%b er2=%b\n",
737 			    sc->sc_recal, mi->mi_tab.b_errcnt, mbsr, mbsr_bits,
738 			    hpaddr->hper1, HPER1_BITS,
739 			    hpaddr->hper2, HPER2_BITS);
740 		}
741 #endif
742 	(void)HPWAIT(mi, hpaddr);
743 	if (retry)
744 		return (MBD_RETRY);
745 	if (mi->mi_tab.b_errcnt >= 16) {
746 		/*
747 		 * This is fast and occurs rarely; we don't
748 		 * bother with interrupts.
749 		 */
750 		hpaddr->hpcs1 = HP_RTC|HP_GO;
751 		(void)HPWAIT(mi, hpaddr);
752 		mbclrattn(mi);
753 	}
754 	if (mi->mi_tab.b_errcnt && (bp->b_flags & B_ERROR) == 0) {
755 		diskerr(bp, "hp", "retries", LOG_INFO, sc->sc_blkdone,
756 		    &hplabel[mi->mi_unit]);
757 		addlog(": %d retries\n", mi->mi_tab.b_errcnt);
758 	}
759 	if ((bp->b_flags & B_BAD) && hpecc(mi, CONT))
760 		return (MBD_RESTARTED);
761 	sc->sc_blkdone = 0;
762 	bp->b_resid = bcr;
763 	if (!ML11(mi->mi_type)) {
764 		hpaddr->hpof = HPOF_FMT22;
765 		hpaddr->hpcs1 = HP_RELEASE|HP_GO;
766 	}
767 	if (sc->sc_openpart == 0)
768 		wakeup((caddr_t)sc);
769 	return (MBD_DONE);
770 }
771 
772 /*
773  * Wait (for a bit) for a drive to come ready;
774  * returns nonzero on success.
775  */
776 hpwait(mi)
777 	register struct mba_device *mi;
778 {
779 	register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv;
780 	register i = 100000;
781 
782 	while ((hpaddr->hpds & HPDS_DRY) == 0 && --i)
783 		DELAY(10);
784 	if (i == 0)
785 		printf("hp%d: intr, not ready\n", mi->mi_unit);
786 	return (i);
787 }
788 
789 hpioctl(dev, cmd, data, flag)
790 	dev_t dev;
791 	int cmd;
792 	caddr_t data;
793 	int flag;
794 {
795 	int unit = hpunit(dev);
796 	register struct disklabel *lp;
797 	register struct hpsoftc *sc = &hpsoftc[unit];
798 	int error = 0;
799 	int hpformat();
800 
801 	lp = &hplabel[unit];
802 
803 	switch (cmd) {
804 
805 	case DIOCGDINFO:
806 		*(struct disklabel *)data = *lp;
807 		break;
808 
809 	case DIOCGPART:
810 		((struct partinfo *)data)->disklab = lp;
811 		((struct partinfo *)data)->part =
812 		    &lp->d_partitions[hppart(dev)];
813 		break;
814 
815 	case DIOCSDINFO:
816 		if ((flag & FWRITE) == 0)
817 			error = EBADF;
818 		else
819 			error = setdisklabel(lp, (struct disklabel *)data,
820 			    (sc->sc_state == OPENRAW) ? 0 : sc->sc_openpart);
821 		if (error == 0)
822 			sc->sc_state = OPEN;
823 		break;
824 
825 	case DIOCWLABEL:
826 		if ((flag & FWRITE) == 0)
827 			error = EBADF;
828 		else
829 			sc->sc_wlabel = *(int *)data;
830 		break;
831 
832 	case DIOCWDINFO:
833 		if ((flag & FWRITE) == 0)
834 			error = EBADF;
835 		else if ((error = setdisklabel(lp, (struct disklabel *)data,
836 		    (sc->sc_state == OPENRAW) ? 0 : sc->sc_openpart)) == 0) {
837 			int wlab;
838 
839 			sc->sc_state = OPEN;
840 			/* simulate opening partition 0 so write succeeds */
841 			sc->sc_openpart |= (1 << 0);		/* XXX */
842 			wlab = sc->sc_wlabel;
843 			sc->sc_wlabel = 1;
844 			error = writedisklabel(dev, hpstrategy, lp);
845 			sc->sc_openpart = sc->sc_copenpart | sc->sc_bopenpart;
846 			sc->sc_wlabel = wlab;
847 		}
848 		break;
849 
850 	case DIOCSBAD:
851 	    {
852 		struct dkbad *db = (struct dkbad *)data;
853 
854 		if ((flag & FWRITE) == 0)
855 			error = EBADF;
856 		else if (db->bt_mbz != 0 || db->bt_flag != 0)
857 			error = EINVAL;
858 		else
859 			hpbad[unit] = *db;
860 		break;
861 	    }
862 
863 	case DIOCRFORMAT:
864 	case DIOCWFORMAT:
865 	    {
866 		register struct format_op *fop;
867 		struct uio auio;
868 		struct iovec aiov;
869 
870 		if (cmd == DIOCWFORMAT && (flag & FWRITE) == 0) {
871 			error = EBADF;
872 			break;
873 		}
874 		fop = (struct format_op *)data;
875 		aiov.iov_base = fop->df_buf;
876 		aiov.iov_len = fop->df_count;
877 		auio.uio_iov = &aiov;
878 		auio.uio_iovcnt = 1;
879 		auio.uio_resid = fop->df_count;
880 		auio.uio_segflg = UIO_USERSPACE;
881 		auio.uio_offset = fop->df_startblk * lp->d_secsize;
882 		/*
883 		 * Don't return errors, as the format op won't get copied
884 		 * out if we return nonzero.  Callers must check the returned
885 		 * count.
886 		 */
887 		(void) physio(hpformat, (struct buf *)NULL, dev,
888 		    (cmd == DIOCWFORMAT ? B_WRITE : B_READ), minphys, &auio);
889 		fop->df_count -= auio.uio_resid;
890 		fop->df_reg[0] = sc->sc_status;
891 		fop->df_reg[1] = sc->sc_hpds;
892 		fop->df_reg[2] = sc->sc_er1;
893 		fop->df_reg[3] = sc->sc_er2;
894 		break;
895 	    }
896 
897 #ifdef COMPAT_42
898 	case DKIOCHDR:  /* do header read/write */	/* XXX */
899 		sc->sc_hdr = 1;
900 		break;
901 #endif
902 
903 	default:
904 		error = ENOTTY;
905 		break;
906 	}
907 	return (error);
908 }
909 
910 hpformat(bp)
911 	struct buf *bp;
912 {
913 	bp->b_flags |= B_FORMAT;
914 	hpstrategy(bp);
915 }
916 
917 hpecc(mi, flag)
918 	register struct mba_device *mi;
919 	int flag;
920 {
921 	register struct mba_regs *mbp = mi->mi_mba;
922 	register struct hpdevice *rp = (struct hpdevice *)mi->mi_drv;
923 	register struct buf *bp = mi->mi_tab.b_actf;
924 	register struct disklabel *lp = &hplabel[mi->mi_unit];
925 	struct hpsoftc *sc = &hpsoftc[mi->mi_unit];
926 	int npf, o;
927 	int bn, cn, tn, sn;
928 	int bcr;
929 
930 	bcr = MASKREG(-mbp->mba_bcr);
931 	if (bp->b_flags & B_BAD)
932 		npf = bp->b_error;
933 	else {
934 		npf = bp->b_bcount - bcr;
935 		/*
936 		 * Watch out for fractional sector at end of transfer;
937 		 * want to round up if finished, otherwise round down.
938 		 */
939 		if (bcr == 0)
940 			npf += 511;
941 		npf = btodb(npf);
942 	}
943 	o = (int)bp->b_un.b_addr & PGOFSET;
944 	bn = bp->b_blkno;
945 	cn = bp->b_cylin;
946 	sn = bn % lp->d_secpercyl + npf;
947 	tn = sn / lp->d_nsectors;
948 	sn %= lp->d_nsectors;
949 	cn += tn / lp->d_ntracks;
950 	tn %= lp->d_ntracks;
951 	bn += npf;
952 	switch (flag) {
953 	case ECC: {
954 		register int i;
955 		caddr_t addr;
956 		struct pte mpte;
957 		int bit, byte, mask;
958 
959 		npf--;		/* because block in error is previous block */
960 		diskerr(bp, "hp", "soft ecc", LOG_WARNING, npf, lp);
961 		if (bp->b_flags & B_BAD)
962 			addlog(" (on replacement sector %d)", sc->sc_badbn);
963 		addlog("\n");
964 		mask = MASKREG(rp->hpec2);
965 		i = MASKREG(rp->hpec1) - 1;		/* -1 makes 0 origin */
966 		bit = i&07;
967 		i = (i&~07)>>3;
968 		byte = i + o;
969 		while (i < 512 && (int)dbtob(npf)+i < bp->b_bcount && bit > -11) {
970 			mpte = mbp->mba_map[npf+btop(byte)];
971 			addr = ptob(mpte.pg_pfnum) + (byte & PGOFSET);
972 			putmemc(addr, getmemc(addr)^(mask<<bit));
973 			byte++;
974 			i++;
975 			bit -= 8;
976 		}
977 		if (bcr == 0)
978 			return (0);
979 		npf++;
980 		break;
981 		}
982 
983 	case SSE:
984 		rp->hpof |= HPOF_SSEI;
985 		if (bp->b_flags & B_BAD) {
986 			bn = sc->sc_badbn;
987 			goto fixregs;
988 		}
989 		mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf));
990 		break;
991 
992 	case BSE:
993 		if (sc->sc_state == OPENRAW)
994 			return (0);
995  		if (rp->hpof & HPOF_SSEI)
996  			sn++;
997 #ifdef HPBDEBUG
998 		if (hpbdebug)
999 		log(LOG_DEBUG, "hpecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn);
1000 #endif
1001 		if (bp->b_flags & B_BAD)
1002 			return (0);
1003 		if ((bn = isbad(&hpbad[mi->mi_unit], cn, tn, sn)) < 0)
1004 			return (0);
1005 		bp->b_flags |= B_BAD;
1006 		bp->b_error = npf + 1;
1007  		rp->hpof &= ~HPOF_SSEI;
1008 		bn = lp->d_ncylinders * lp->d_secpercyl -
1009 		    lp->d_nsectors - 1 - bn;
1010 		sc->sc_badbn = bn;
1011 	fixregs:
1012 		cn = bn / lp->d_secpercyl;
1013 		sn = bn % lp->d_secpercyl;
1014 		tn = sn / lp->d_nsectors;
1015 		sn %= lp->d_nsectors;
1016 		bcr = bp->b_bcount - (int)ptob(npf);
1017 		bcr = MIN(bcr, 512);
1018 		mbp->mba_bcr = -bcr;
1019 #ifdef HPBDEBUG
1020 		if (hpbdebug)
1021 		log(LOG_DEBUG, "revector to cn %d tn %d sn %d\n", cn, tn, sn);
1022 #endif
1023 		break;
1024 
1025 	case CONT:
1026 #ifdef HPBDEBUG
1027 		if (hpbdebug)
1028 		log(LOG_DEBUG, "hpecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn);
1029 #endif
1030 		bp->b_flags &= ~B_BAD;
1031 		if ((int)ptob(npf) >= bp->b_bcount)
1032 			return (0);
1033 		mbp->mba_bcr = -(bp->b_bcount - (int)ptob(npf));
1034 		break;
1035 	}
1036 	rp->hpcs1 = HP_DCLR|HP_GO;
1037 	if (rp->hpof & HPOF_SSEI)
1038 		sn++;
1039 	rp->hpdc = cn;
1040 	rp->hpda = (tn<<8) + sn;
1041 	mbp->mba_sr = -1;
1042 	mbp->mba_var = (int)ptob(npf) + o;
1043 	rp->hpcs1 = bp->b_flags&B_READ ? HP_RCOM|HP_GO : HP_WCOM|HP_GO;
1044 	mi->mi_tab.b_errcnt = 0;	/* error has been corrected */
1045 	sc->sc_blkdone = npf;
1046 	return (1);
1047 }
1048 
1049 #define	DBSIZE	20
1050 
1051 hpdump(dev)
1052 	dev_t dev;
1053 {
1054 	register struct mba_device *mi;
1055 	register struct mba_regs *mba;
1056 	register struct disklabel *lp;
1057 	struct hpdevice *hpaddr;
1058 	char *start;
1059 	int num, unit;
1060 	extern int dumpsize;
1061 
1062 	num = dumpsize;
1063 	start = 0;
1064 	unit = hpunit(dev);
1065 	if (unit >= NHP)
1066 		return (ENXIO);
1067 #define	phys(a,b)	((b)((int)(a)&0x7fffffff))
1068 	mi = phys(hpinfo[unit],struct mba_device *);
1069 	if (mi == 0 || mi->mi_alive == 0)
1070 		return (ENXIO);
1071 	lp = &hplabel[unit];
1072 	mba = phys(mi->mi_hd, struct mba_hd *)->mh_physmba;
1073 	mba->mba_cr = MBCR_INIT;
1074 	hpaddr = (struct hpdevice *)&mba->mba_drv[mi->mi_drive];
1075 	if ((hpaddr->hpds & HPDS_VV) == 0) {
1076 		hpaddr->hpcs1 = HP_DCLR|HP_GO;
1077 		hpaddr->hpcs1 = HP_PRESET|HP_GO;
1078 		hpaddr->hpof = HPOF_FMT22;
1079 	}
1080 	if (dumplo + num >= lp->d_partitions[hppart(dev)].p_size)
1081 		num = lp->d_partitions[hppart(dev)].p_size - dumplo;
1082 	while (num > 0) {
1083 		register struct pte *hpte = mba->mba_map;
1084 		register int i;
1085 		int blk, cn, sn, tn;
1086 		daddr_t bn;
1087 
1088 		blk = num > DBSIZE ? DBSIZE : num;
1089 		bn = dumplo + btodb(start);
1090 		cn = (bn + lp->d_partitions[hppart(dev)].p_offset) /
1091 		    lp->d_secpercyl;
1092 		sn = bn % lp->d_secpercyl;
1093 		tn = sn / lp->d_nsectors;
1094 		sn = sn % lp->d_nsectors;
1095 		hpaddr->hpdc = cn;
1096 		hpaddr->hpda = (tn << 8) + sn;
1097 		for (i = 0; i < blk; i++)
1098 			*(int *)hpte++ = (btop(start)+i) | PG_V;
1099 		mba->mba_sr = -1;
1100 		mba->mba_bcr = -(blk*NBPG);
1101 		mba->mba_var = 0;
1102 		hpaddr->hpcs1 = HP_WCOM | HP_GO;
1103 		while ((hpaddr->hpds & HPDS_DRY) == 0)
1104 			DELAY(10);
1105 		if (hpaddr->hpds&HPDS_ERR)
1106 			return (EIO);
1107 		start += blk*NBPG;
1108 		num -= blk;
1109 	}
1110 	return (0);
1111 }
1112 
1113 hpsize(dev)
1114 	dev_t dev;
1115 {
1116 	register int unit = hpunit(dev);
1117 	struct mba_device *mi;
1118 
1119 	if (unit >= NHP || (mi = hpinfo[unit]) == 0 || mi->mi_alive == 0 ||
1120 	    hpsoftc[unit].sc_state != OPEN)
1121 		return (-1);
1122 	return ((int)hplabel[unit].d_partitions[hppart(dev)].p_size);
1123 }
1124 
1125 #ifdef COMPAT_42
1126 /*
1127  * Compatibility code to fake up pack label
1128  * for unlabeled disks.
1129  */
1130 struct	size {
1131 	daddr_t	nblocks;
1132 	int	cyloff;
1133 } rp06_sizes[8] = {
1134 	15884,	0,		/* A=cyl 0 thru 37 */
1135 	33440,	38,		/* B=cyl 38 thru 117 */
1136 	340670,	0,		/* C=cyl 0 thru 814 */
1137 	15884,	118,		/* D=cyl 118 thru 155 */
1138 	55936,	156,		/* E=cyl 156 thru 289 */
1139 	219384,	290,		/* F=cyl 290 thru 814 */
1140 	291192,	118,		/* G=cyl 118 thru 814 */
1141 	0,	0,
1142 }, rp05_sizes[8] = {
1143 	15884,	0,		/* A=cyl 0 thru 37 */
1144 	33440,	38,		/* B=cyl 38 thru 117 */
1145 	171798,	0,		/* C=cyl 0 thru 410 */
1146 	15884,	118,		/* D=cyl 118 thru 155 */
1147 	55936,	156,		/* E=cyl 156 thru 289 */
1148 	50512,	290,		/* F=cyl 290 thru 410 */
1149 	122408,	118,		/* G=cyl 118 thru 410 */
1150 	0,	0,
1151 }, rm03_sizes[8] = {
1152 	15884,	0,		/* A=cyl 0 thru 99 */
1153 	33440,	100,		/* B=cyl 100 thru 308 */
1154 	131680,	0,		/* C=cyl 0 thru 822 */
1155 	15884,	309,		/* D=cyl 309 thru 408 */
1156 	55936,	409,		/* E=cyl 409 thru 758 */
1157 	10144,	759,		/* F=cyl 759 thru 822 */
1158 	82144,	309,		/* G=cyl 309 thru 822 */
1159 	0,	0,
1160 }, rm05_sizes[8] = {
1161 	15884,	0,		/* A=cyl 0 thru 26 */
1162 	33440,	27,		/* B=cyl 27 thru 81 */
1163 	500384,	0,		/* C=cyl 0 thru 822 */
1164 	15884,	562,		/* D=cyl 562 thru 588 */
1165 	55936,	589,		/* E=cyl 589 thru 680 */
1166 	86240,	681,		/* F=cyl 681 thru 822 */
1167 	158592,	562,		/* G=cyl 562 thru 822 */
1168 	291346,	82,		/* H=cyl 82 thru 561 */
1169 }, rm80_sizes[8] = {
1170 	15884,	0,		/* A=cyl 0 thru 36 */
1171 	33440,	37,		/* B=cyl 37 thru 114 */
1172 	242606,	0,		/* C=cyl 0 thru 558 */
1173 	15884,	115,		/* D=cyl 115 thru 151 */
1174 	55936,	152,		/* E=cyl 152 thru 280 */
1175 	120559,	281,		/* F=cyl 281 thru 558 */
1176 	192603,	115,		/* G=cyl 115 thru 558 */
1177 	0,	0,
1178 }, rp07_sizes[8] = {
1179 	15884,	0,		/* A=cyl 0 thru 9 */
1180 	66880,	10,		/* B=cyl 10 thru 51 */
1181 	1008000, 0,		/* C=cyl 0 thru 629 */
1182 	15884,	235,		/* D=cyl 235 thru 244 */
1183 	307200,	245,		/* E=cyl 245 thru 436 */
1184 	308650,	437,		/* F=cyl 437 thru 629 */
1185 	631850,	235,		/* G=cyl 235 thru 629 */
1186 	291346,	52,		/* H=cyl 52 thru 234 */
1187 }, cdc9775_sizes[8] = {
1188 	15884,	0,		/* A=cyl 0 thru 12 */
1189 	66880,	13,		/* B=cyl 13 thru 65 */
1190 	1077760, 0,		/* C=cyl 0 thru 841 */
1191 	15884,	294,		/* D=cyl 294 thru 306 */
1192 	307200,	307,		/* E=cyl 307 thru 546 */
1193 	377440,	547,		/* F=cyl 547 thru 841 */
1194 	701280,	294,		/* G=cyl 294 thru 841 */
1195 	291346,	66,		/* H=cyl 66 thru 293 */
1196 }, cdc9730_sizes[8] = {
1197 	15884,	0,		/* A=cyl 0 thru 49 */
1198 	33440,	50,		/* B=cyl 50 thru 154 */
1199 	263360,	0,		/* C=cyl 0 thru 822 */
1200 	15884,	155,		/* D=cyl 155 thru 204 */
1201 	55936,	205,		/* E=cyl 205 thru 379 */
1202 	141664,	380,		/* F=cyl 380 thru 822 */
1203 	213664,	155,		/* G=cyl 155 thru 822 */
1204 	0,	0,
1205 }, capricorn_sizes[8] = {
1206 	15884,	0,		/* A=cyl 0 thru 31 */
1207 	33440,	32,		/* B=cyl 32 thru 97 */
1208 	524288,	0,		/* C=cyl 0 thru 1023 */
1209 	15884,	668,		/* D=cyl 668 thru 699 */
1210 	55936,	700,		/* E=cyl 700 thru 809 */
1211 	109472,	810,		/* F=cyl 810 thru 1023 */
1212 	182176,	668,		/* G=cyl 668 thru 1023 */
1213 	291346,	98,		/* H=cyl 98 thru 667 */
1214 }, eagle_sizes[8] = {
1215 	15884,	0,		/* A=cyl 0 thru 16 */
1216 	66880,	17,		/* B=cyl 17 thru 86 */
1217 	808320,	0,		/* C=cyl 0 thru 841 */
1218 	15884,	391,		/* D=cyl 391 thru 407 */
1219 	307200,	408,		/* E=cyl 408 thru 727 */
1220 	109296,	728,		/* F=cyl 728 thru 841 */
1221 	432816,	391,		/* G=cyl 391 thru 841 */
1222 	291346,	87,		/* H=cyl 87 thru 390 */
1223 }, ampex_sizes[8] = {
1224 	15884,	0,		/* A=cyl 0 thru 26 */
1225 	33440,	27,		/* B=cyl 27 thru 81 */
1226 	495520,	0,		/* C=cyl 0 thru 814 */
1227 	15884,	562,		/* D=cyl 562 thru 588 */
1228 	55936,	589,		/* E=cyl 589 thru 680 */
1229 	81312,	681,		/* F=cyl 681 thru 814 */
1230 	153664,	562,		/* G=cyl 562 thru 814 */
1231 	291346,	82,		/* H=cyl 82 thru 561 */
1232 }, fj2361_sizes[8] = {
1233 	15884,	0,		/* A=cyl 0 thru 12 */
1234 	66880,	13,		/* B=cyl 13 thru 65 */
1235 	1077760, 0,		/* C=cyl 0 thru 841 */
1236 	15884,	294,		/* D=cyl 294 thru 306 */
1237 	307200,	307,		/* E=cyl 307 thru 546 */
1238 	377408,	547,		/* F=cyl 547 thru 841 */
1239 	701248,	294,		/* G=cyl 294 thru 841 */
1240 	291346,	66,		/* H=cyl 66 thru 293 */
1241 }, fj2361a_sizes[8] = {
1242 	15884,	0,		/* A=cyl 0 thru 11 */
1243 	66880,	12,		/* B=cyl 12 thru 61 */
1244 	1145120, 0,		/* C=cyl 0 thru 841 */
1245 	15884,	277,		/* D=cyl 277 thru 288 */
1246 	307200,	289,		/* E=cyl 289 thru 514 */
1247 	444516,	515,		/* F=cyl 515 thru 841 */
1248 	768196,	277,		/* G=cyl 277 thru 841 */
1249 	291346,	62,		/* H=cyl 62 thru 276 */
1250 };
1251 
1252 /*
1253  * These variable are all measured in sectors.
1254  * Sdist is how much to "lead" in the search for a desired sector
1255  * (i.e. if want N, search for N-sdist.)
1256  * Maxdist and mindist define the region right before our desired sector within
1257  * which we don't bother searching.  We don't search when we are already less
1258  * then maxdist and more than mindist sectors "before" our desired sector.
1259  * Maxdist should be >= sdist.
1260  *
1261  * Beware, sdist, mindist and maxdist are not well tuned
1262  * for many of the drives listed in this table.
1263  * Try patching things with something i/o intensive
1264  * running and watch iostat.
1265  *
1266  * The order of these entries must agree with the indices in hptypes[].
1267  */
1268 struct hpst {
1269 	short	nsect;		/* # sectors/track */
1270 	short	ntrak;		/* # tracks/cylinder */
1271 	short	nspc;		/* # sector/cylinders */
1272 	short	ncyl;		/* # cylinders */
1273 	struct	size *sizes;	/* partition tables */
1274 	short	sdist;		/* seek distance metric */
1275 	short	maxdist;	/* boundaries of non-searched area */
1276 	short	mindist;	/* preceding the target sector */
1277 	char	*name;		/* name of disk type */
1278 } hpst[] = {
1279     { 32, 5,	32*5,	823,	rm03_sizes,	7, 4, 1, "RM03" },
1280     { 32, 19,	32*19,	823,	rm05_sizes,	7, 4, 1, "RM05" },
1281     { 22,19,	22*19,	815,	rp06_sizes,	7, 4, 1, "RP06"},
1282     { 31, 14, 	31*14,	559,	rm80_sizes,	7, 4, 1, "RM80"},
1283     { 22, 19,	22*19,	411,	rp05_sizes,	7, 4, 1, "RP04"},
1284     { 22, 19,	22*19,	411,	rp05_sizes,	7, 4, 1, "RP05"},
1285     { 50, 32,	50*32,	630,	rp07_sizes,    15, 8, 3, "RP07"},
1286     { 1, 1,	1,	1,	0,		0, 0, 0, "ML11A"},
1287     { 1, 1,	1,	1,	0,		0, 0, 0, "ML11B" },
1288     { 32, 40,	32*40,	843,	cdc9775_sizes,	7, 4, 1, "9775" },
1289     { 32, 10,	32*10,	823,	cdc9730_sizes,	7, 4, 1, "9730-160" },
1290     { 32, 16,	32*16,	1024,	capricorn_sizes,10,4, 3, "capricorn" },
1291     { 48, 20,	48*20,	842,	eagle_sizes,   15, 8, 3, "eagle" },
1292     { 32, 19,	32*19,	815,	ampex_sizes,	7, 4, 1, "9300" },
1293     { 64, 20,	64*20,	842,	fj2361_sizes,  15, 8, 3, "2361" },
1294     { 68, 20,	68*20,	842,	fj2361a_sizes, 15, 8, 3, "2361a" },
1295 };
1296 
1297 /*
1298  * Map apparent MASSBUS drive type into manufacturer
1299  * specific configuration.  For SI controllers this is done
1300  * based on codes in the serial number register.  For
1301  * EMULEX controllers, the track and sector attributes are
1302  * used when the drive type is an RM02 (not supported by DEC).
1303  */
1304 hpmaptype(mi, lp)
1305 	register struct mba_device *mi;
1306 	register struct disklabel *lp;
1307 {
1308 	register struct hpdevice *hpaddr = (struct hpdevice *)mi->mi_drv;
1309 	register int type = mi->mi_type;
1310 	register struct hpst *st;
1311 	register i;
1312 
1313 	/*
1314 	 * Model-byte processing for SI controllers.
1315 	 * NB:  Only deals with RM03 and RM05 emulations.
1316 	 */
1317 	if (type == HPDT_RM03 || type == HPDT_RM05) {
1318 		int hpsn = hpaddr->hpsn;
1319 
1320 		if ((hpsn & SIMB_LU) == mi->mi_drive)
1321 		switch ((hpsn & SIMB_MB) & ~(SIMB_S6|SIRM03|SIRM05)) {
1322 
1323 		case SI9775D:
1324 			type = HPDT_9775;
1325 			break;
1326 
1327 		case SI9730D:
1328 			type = HPDT_9730;
1329 			break;
1330 
1331 		case SI9766:
1332 			type = HPDT_RM05;
1333 			break;
1334 
1335 		case SI9762:
1336 			type = HPDT_RM03;
1337 			break;
1338 
1339 		case SICAPD:
1340 			type = HPDT_CAPRICORN;
1341 			break;
1342 
1343 		case SI9751D:
1344 			type = HPDT_EAGLE;
1345 			break;
1346 		}
1347 		mi->mi_type = type;
1348 	}
1349 
1350 	/*
1351 	 * EMULEX SC750 or SC780.  Poke the holding register.
1352 	 */
1353 	if (type == HPDT_RM02) {
1354 		int nsectors, ntracks, ncyl;
1355 
1356 		hpaddr->hpof = HPOF_FMT22;
1357 		mbclrattn(mi);
1358 		hpaddr->hpcs1 = HP_NOP;
1359 		hpaddr->hphr = HPHR_MAXTRAK;
1360 		ntracks = MASKREG(hpaddr->hphr) + 1;
1361 		DELAY(100);
1362 		hpaddr->hpcs1 = HP_NOP;
1363 		hpaddr->hphr = HPHR_MAXSECT;
1364 		nsectors = MASKREG(hpaddr->hphr) + 1;
1365 		DELAY(100);
1366 		hpaddr->hpcs1 = HP_NOP;
1367 		hpaddr->hphr = HPHR_MAXCYL;
1368 		ncyl = MASKREG(hpaddr->hphr) + 1;
1369 		for (type = 0; hptypes[type] != 0; type++)
1370 			if (hpst[type].nsect == nsectors &&
1371 			    hpst[type].ntrak == ntracks &&
1372 			    hpst[type].ncyl == ncyl)
1373 				break;
1374 
1375 		hpaddr->hpcs1 = HP_DCLR|HP_GO;
1376 		mbclrattn(mi);		/* conservative */
1377 		if (hptypes[type] == 0) {
1378 	printf("hp%d: %d sectors, %d tracks, %d cylinders: unknown device\n",
1379 				mi->mi_unit, nsectors, ntracks, ncyl);
1380 			lp->d_nsectors = nsectors;
1381 			lp->d_ntracks = ntracks;
1382 			lp->d_ncylinders = ncyl;
1383 			lp->d_secpercyl = nsectors*ntracks;
1384 			lp->d_secperunit = lp->d_secpercyl * lp->d_ncylinders;
1385 #ifdef notdef		/* set elsewhere */
1386 			lp->d_npartitions = 1;
1387 			lp->d_partitions[0].p_offset = 0;
1388 #endif
1389 			lp->d_partitions[0].p_size = lp->d_secperunit;
1390 			return (0);
1391 		}
1392 		mi->mi_type = type;
1393 	}
1394 
1395 	/*
1396 	 * set up minimal disk label.
1397 	 */
1398 	st = &hpst[type];
1399 	lp->d_nsectors = st->nsect;
1400 	lp->d_ntracks = st->ntrak;
1401 	lp->d_secpercyl = st->nspc;
1402 	lp->d_ncylinders = st->ncyl;
1403 	lp->d_secperunit = st->nspc * st->ncyl;
1404 	lp->d_sdist = st->sdist;
1405 	lp->d_mindist = st->mindist;
1406 	lp->d_maxdist = st->maxdist;
1407 	bcopy(hpst[type].name, lp->d_typename, sizeof(lp->d_typename));
1408 	lp->d_npartitions = 8;
1409 	for (i = 0; i < 8; i++) {
1410 		lp->d_partitions[i].p_offset = st->sizes[i].cyloff *
1411 		    lp->d_secpercyl;
1412 		lp->d_partitions[i].p_size = st->sizes[i].nblocks;
1413 	}
1414 	return (1);
1415 }
1416 #endif COMPAT_42
1417 #endif
1418