X-Git-Url: https://git.subgeniuskitty.com/unix-history/.git/blobdiff_plain/c9e9b65b24ddfaa1e2a2f1c85eeaa579eddb11fc..961945a80c6f995f4567dbce8881af0bbdee211c:/usr/src/sys/vax/uba/rk.c

diff --git a/usr/src/sys/vax/uba/rk.c b/usr/src/sys/vax/uba/rk.c
index 801b52735f..7f170057ba 100644
--- a/usr/src/sys/vax/uba/rk.c
+++ b/usr/src/sys/vax/uba/rk.c
@@ -1,35 +1,42 @@
-/*	rk.c	4.18	%G%	*/
+/*	rk.c	4.51	82/12/17	*/
 
 #include "rk.h"
 #if NHK > 0
+int	rkpip;		/* DEBUG */
+int	rknosval;	/* DEBUG */
+#ifdef RKDEBUG
+int	rkdebug;
+#endif
+#ifdef RKBDEBUG
+int	rkbdebug;
+#endif
 /*
- * RK11/RK07 disk driver
+ * RK611/RK0[67] disk driver
  *
  * This driver mimics up.c; see it for an explanation of common code.
  *
  * TODO:
- *	Correct to handle spun-down drives
- *	Check write lock handling
- *	Add reading of bad sector information and disk layout from sector 1
- *	Add bad sector forwarding code
- *	Fix drive recognition
+ *	Learn why we lose an interrupt sometime when spinning drives down
  */
-#define	DELAY(i)		{ register int j; j = i; while (--j > 0); }
+#include "../machine/pte.h"
+
 #include "../h/param.h"
 #include "../h/systm.h"
 #include "../h/buf.h"
 #include "../h/conf.h"
 #include "../h/dir.h"
 #include "../h/user.h"
-#include "../h/pte.h"
 #include "../h/map.h"
 #include "../h/vm.h"
-#include "../h/uba.h"
 #include "../h/dk.h"
-#include "../h/cpu.h"
 #include "../h/cmap.h"
+#include "../h/dkbad.h"
+#include "../h/uio.h"
 
-#include "../h/rkreg.h"
+#include "../vax/cpu.h"
+#include "../vaxuba/ubareg.h"
+#include "../vaxuba/ubavar.h"
+#include "../vaxuba/rkreg.h"
 
 struct	rk_softc {
 	int	sc_softas;
@@ -42,7 +49,7 @@ struct	rk_softc {
 struct size {
 	daddr_t	nblocks;
 	int	cyloff;
-} rk7_sizes[] ={
+} rk7_sizes[8] ={
 	15884,	0,		/* A=cyl 0 thru 240 */
 	10032,	241,		/* B=cyl 241 thru 392 */
 	53790,	0,		/* C=cyl 0 thru 814 */
@@ -51,19 +58,34 @@ struct size {
 	0,	0,
 	27786,	393,		/* G=cyl 393 thru 813 */
 	0,	0,
+}, rk6_sizes[8] ={
+	15884,	0,		/* A=cyl 0 thru 240 */
+	11154,	241,		/* B=cyl 241 thru 409 */
+	27126,	0,		/* C=cyl 0 thru 410 */
+	0,	0,
+	0,	0,
+	0,	0,
+	0,	0,
+	0,	0,
 };
 /* END OF STUFF WHICH SHOULD BE READ IN PER DISK */
 
+short	rktypes[] = { RK_CDT, 0 };
+
 int	rkprobe(), rkslave(), rkattach(), rkdgo(), rkintr();
-struct	uba_minfo *rkminfo[NHK];
-struct	uba_dinfo *rkdinfo[NRK];
-struct	uba_dinfo *rkip[NHK][4];
+struct	uba_ctlr *rkminfo[NHK];
+struct	uba_device *rkdinfo[NRK];
+struct	uba_device *rkip[NHK][4];
 
 u_short	rkstd[] = { 0777440, 0 };
 struct	uba_driver hkdriver =
  { rkprobe, rkslave, rkattach, rkdgo, rkstd, "rk", rkdinfo, "hk", rkminfo, 1 };
 struct	buf rkutab[NRK];
 short	rkcyl[NRK];
+#ifndef NOBADSECT
+struct	dkbad rkbad[NRK];
+struct	buf brkbuf[NRK];
+#endif
 
 struct	rkst {
 	short	nsect;
@@ -73,10 +95,13 @@ struct	rkst {
 	struct	size *sizes;
 } rkst[] = {
 	NRKSECT, NRKTRK, NRKSECT*NRKTRK,	NRK7CYL,	rk7_sizes,
+	NRKSECT, NRKTRK, NRKSECT*NRKTRK,	NRK6CYL,	rk6_sizes,
 };
 
 u_char 	rk_offset[16] =
-  { P400,M400,P400,M400,P800,M800,P800,M800,P1200,M1200,P1200,M1200,0,0,0,0 };
+  { RKAS_P400,RKAS_M400,RKAS_P400,RKAS_M400,RKAS_P800,RKAS_M800,RKAS_P800,
+    RKAS_M800,RKAS_P1200,RKAS_M1200,RKAS_P1200,RKAS_M1200,0,0,0,0
+  };
 
 struct	buf rrkbuf[NRK];
 
@@ -95,33 +120,39 @@ rkprobe(reg)
 
 #ifdef lint	
 	br = 0; cvec = br; br = cvec;
+	rkintr(0);
 #endif
 	((struct rkdevice *)reg)->rkcs1 = RK_CDT|RK_IE|RK_CRDY;
 	DELAY(10);
 	((struct rkdevice *)reg)->rkcs1 = RK_CDT;
-	return (1);
+	return (sizeof (struct rkdevice));
 }
 
 rkslave(ui, reg)
-	struct uba_dinfo *ui;
+	struct uba_device *ui;
 	caddr_t reg;
 {
 	register struct rkdevice *rkaddr = (struct rkdevice *)reg;
 
-	rkaddr->rkcs1 = RK_CDT;
+	ui->ui_type = 0;
+	rkaddr->rkcs1 = RK_CCLR;
 	rkaddr->rkcs2 = ui->ui_slave;
+	rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
 	rkwait(rkaddr);
-/* SHOULD TRY THIS BY PULLING A PLUG */
-/* A DELAY OR SOMETHING MAY BE NEEDED */
-	if (rkaddr->rkcs2&RK_NED) {
-		rkaddr->rkcs1 = RK_CDT|RK_CCLR;
+	DELAY(50);
+	if (rkaddr->rkcs2&RKCS2_NED || (rkaddr->rkds&RKDS_SVAL) == 0) {
+		rkaddr->rkcs1 = RK_CCLR;
 		return (0);
 	}
+	if (rkaddr->rkcs1&RK_CERR && rkaddr->rker&RKER_DTYE) {
+		ui->ui_type = 1;
+		rkaddr->rkcs1 = RK_CCLR;
+	}
 	return (1);
 }
 
 rkattach(ui)
-	register struct uba_dinfo *ui;
+	register struct uba_device *ui;
 {
 
 	if (rkwstart == 0) {
@@ -133,17 +164,30 @@ rkattach(ui)
 	rkip[ui->ui_ctlr][ui->ui_slave] = ui;
 	rk_softc[ui->ui_ctlr].sc_ndrive++;
 	rkcyl[ui->ui_unit] = -1;
+	ui->ui_flags = 0;
 }
  
+rkopen(dev)
+	dev_t dev;
+{
+	register int unit = minor(dev) >> 3;
+	register struct uba_device *ui;
+
+	if (unit >= NRK || (ui = rkdinfo[unit]) == 0 || ui->ui_alive == 0)
+		return (ENXIO);
+	return (0);
+}
+
 rkstrategy(bp)
 	register struct buf *bp;
 {
-	register struct uba_dinfo *ui;
+	register struct uba_device *ui;
 	register struct rkst *st;
 	register int unit;
 	register struct buf *dp;
 	int xunit = minor(bp->b_dev) & 07;
 	long bn, sz;
+	int s;
 
 	sz = (bp->b_bcount+511) >> 9;
 	unit = dkunit(bp);
@@ -157,7 +201,7 @@ rkstrategy(bp)
 	    (bn = dkblock(bp))+sz > st->sizes[xunit].nblocks)
 		goto bad;
 	bp->b_cylin = bn/st->nspc + st->sizes[xunit].cyloff;
-	(void) spl5();
+	s = spl5();
 	dp = &rkutab[ui->ui_unit];
 	disksort(dp, bp);
 	if (dp->b_active == 0) {
@@ -166,7 +210,7 @@ rkstrategy(bp)
 		if (bp->b_actf && bp->b_active == 0)
 			(void) rkstart(ui->ui_mi);
 	}
-	(void) spl0();
+	splx(s);
 	return;
 
 bad:
@@ -176,49 +220,62 @@ bad:
 }
 
 rkustart(ui)
-	register struct uba_dinfo *ui;
+	register struct uba_device *ui;
 {
 	register struct buf *bp, *dp;
-	register struct uba_minfo *um;
+	register struct uba_ctlr *um;
 	register struct rkdevice *rkaddr;
-	register struct rkst *st;
-	daddr_t bn;
-	int sn, csn;
-	int didie = 0;
 
 	if (ui == 0)
-		return (0);
+		return;
 	dk_busy &= ~(1<<ui->ui_dk);
 	dp = &rkutab[ui->ui_unit];
-	if ((bp = dp->b_actf) == NULL)
-		goto out;
 	um = ui->ui_mi;
+	rkaddr = (struct rkdevice *)um->um_addr;
 	if (um->um_tab.b_active) {
 		rk_softc[um->um_ctlr].sc_softas |= 1<<ui->ui_slave;
-		return (0);
+		return;
 	}
-	rkaddr = (struct rkdevice *)um->um_addr;
-	rkaddr->rkcs1 = RK_CDT|RK_CERR;
+	if ((bp = dp->b_actf) == NULL)
+		return;
+	rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_CERR;
 	rkaddr->rkcs2 = ui->ui_slave;
-	rkaddr->rkcs1 = RK_CDT|RK_SELECT|RK_GO;
+	rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO;
 	rkwait(rkaddr);
-	if (dp->b_active)
-		goto done;
-	dp->b_active = 1;
-	if ((rkaddr->rkds & RK_VV) == 0) {
+	if ((rkaddr->rkds & RKDS_VV) == 0 || ui->ui_flags == 0) {
 		/* SHOULD WARN SYSTEM THAT THIS HAPPENED */
-		rkaddr->rkcs1 = RK_CDT|RK_IE|RK_PACK|RK_GO;
+#ifndef NOBADSECT
+		struct rkst *st = &rkst[ui->ui_type];
+		struct buf *bbp = &brkbuf[ui->ui_unit];
+#endif
+
+		rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_PACK|RK_GO;
+		ui->ui_flags = 1;
+#ifndef NOBADSECT
+		bbp->b_flags = B_READ|B_BUSY;
+		bbp->b_dev = bp->b_dev;
+		bbp->b_bcount = 512;
+		bbp->b_un.b_addr = (caddr_t)&rkbad[ui->ui_unit];
+		bbp->b_blkno = st->ncyl*st->nspc - st->nsect;
+		bbp->b_cylin = st->ncyl - 1;
+		dp->b_actf = bbp;
+		bbp->av_forw = bp;
+		bp = bbp;
+#endif
 		rkwait(rkaddr);
-		didie = 1;
 	}
+	if (dp->b_active)
+		goto done;
+	dp->b_active = 1;
+	if ((rkaddr->rkds & RKDS_DREADY) != RKDS_DREADY)
+		goto done;
 	if (rk_softc[um->um_ctlr].sc_ndrive == 1)
 		goto done;
 	if (bp->b_cylin == rkcyl[ui->ui_unit])
 		goto done;
 	rkaddr->rkcyl = bp->b_cylin;
 	rkcyl[ui->ui_unit] = bp->b_cylin;
-	rkaddr->rkcs1 = RK_CDT|RK_IE|RK_SEEK|RK_GO;
-	didie = 1;
+	rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_SEEK|RK_GO;
 	if (ui->ui_dk >= 0) {
 		dk_busy |= 1<<ui->ui_dk;
 		dk_seek[ui->ui_dk]++;
@@ -235,14 +292,14 @@ done:
 		dp->b_active = 2;
 	}
 out:
-	return (didie);
+	return;
 }
 
 rkstart(um)
-	register struct uba_minfo *um;
+	register struct uba_ctlr *um;
 {
 	register struct buf *bp, *dp;
-	register struct uba_dinfo *ui;
+	register struct uba_device *ui;
 	register struct rkdevice *rkaddr;
 	struct rkst *st;
 	daddr_t bn;
@@ -250,7 +307,7 @@ rkstart(um)
 
 loop:
 	if ((dp = um->um_tab.b_actf) == NULL)
-		return (0);
+		return;
 	if ((bp = dp->b_actf) == NULL) {
 		um->um_tab.b_actf = dp->b_forw;
 		goto loop;
@@ -263,33 +320,56 @@ loop:
 	tn = sn/st->nsect;
 	sn %= st->nsect;
 	rkaddr = (struct rkdevice *)ui->ui_addr;
-	rkaddr->rkcs1 = RK_CDT|RK_CERR;
+retry:
+	rkaddr->rkcs1 = RK_CCLR;
 	rkaddr->rkcs2 = ui->ui_slave;
-	rkaddr->rkcs1 = RK_CDT|RK_SELECT|RK_GO;
+	rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO;
 	rkwait(rkaddr);
-	if (um->um_tab.b_errcnt >= 16 && (bp->b_flags&B_READ) != 0) {
-		rkaddr->rkatt = rk_offset[um->um_tab.b_errcnt & 017];
-		rkaddr->rkcs1 = RK_CDT|RK_OFFSET|RK_GO;
-		rkwait(rkaddr);
+	if ((rkaddr->rkds&RKDS_SVAL) == 0) {
+		rknosval++;
+		goto nosval;
+	}
+	if (rkaddr->rkds&RKDS_PIP) {
+		rkpip++;
+		goto retry;
+	}
+	if ((rkaddr->rkds&RKDS_DREADY) != RKDS_DREADY) {
+		printf("rk%d: not ready", dkunit(bp));
+		if ((rkaddr->rkds&RKDS_DREADY) != RKDS_DREADY) {
+			printf("\n");
+			rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO;
+			rkwait(rkaddr);
+			rkaddr->rkcs1 = RK_CCLR;
+			rkwait(rkaddr);
+			um->um_tab.b_active = 0;
+			um->um_tab.b_errcnt = 0;
+			dp->b_actf = bp->av_forw;
+			dp->b_active = 0;
+			bp->b_flags |= B_ERROR;
+			iodone(bp);
+			goto loop;
+		}
+		printf(" (came back!)\n");
 	}
+nosval:
 	rkaddr->rkcyl = bp->b_cylin;
 	rkcyl[ui->ui_unit] = bp->b_cylin;
 	rkaddr->rkda = (tn << 8) + sn;
 	rkaddr->rkwc = -bp->b_bcount / sizeof (short);
 	if (bp->b_flags & B_READ)
-		cmd = RK_CDT|RK_IE|RK_READ|RK_GO;
+		cmd = rktypes[ui->ui_type]|RK_IE|RK_READ|RK_GO;
 	else
-		cmd = RK_CDT|RK_IE|RK_WRITE|RK_GO;
+		cmd = rktypes[ui->ui_type]|RK_IE|RK_WRITE|RK_GO;
 	um->um_cmd = cmd;
-	ubago(ui);
-	return (1);
+	(void) ubago(ui);
 }
 
 rkdgo(um)
-	register struct uba_minfo *um;
+	register struct uba_ctlr *um;
 {
 	register struct rkdevice *rkaddr = (struct rkdevice *)um->um_addr;
 
+	um->um_tab.b_active = 2;	/* should now be 2 */
 	rkaddr->rkba = um->um_ubinfo;
 	rkaddr->rkcs1 = um->um_cmd|((um->um_ubinfo>>8)&0x300);
 }
@@ -297,91 +377,109 @@ rkdgo(um)
 rkintr(rk11)
 	int rk11;
 {
-	register struct uba_minfo *um = rkminfo[rk11];
-	register struct uba_dinfo *ui;
+	register struct uba_ctlr *um = rkminfo[rk11];
+	register struct uba_device *ui;
 	register struct rkdevice *rkaddr = (struct rkdevice *)um->um_addr;
 	register struct buf *bp, *dp;
 	int unit;
 	struct rk_softc *sc = &rk_softc[um->um_ctlr];
 	int as = (rkaddr->rkatt >> 8) | sc->sc_softas;
-	int needie = 1;
 
 	sc->sc_wticks = 0;
 	sc->sc_softas = 0;
-	if (um->um_tab.b_active) {
+	if (um->um_tab.b_active == 2 || sc->sc_recal) {
+		um->um_tab.b_active = 1;
 		dp = um->um_tab.b_actf;
 		bp = dp->b_actf;
 		ui = rkdinfo[dkunit(bp)];
 		dk_busy &= ~(1 << ui->ui_dk);
+#ifndef NOBADSECT
+		if (bp->b_flags&B_BAD)
+			if (rkecc(ui, CONT))
+				return;
+#endif
 		if (rkaddr->rkcs1 & RK_CERR) {
 			int recal;
-#ifdef notdef
-			int del = 0;
-#endif
 			u_short ds = rkaddr->rkds;
 			u_short cs2 = rkaddr->rkcs2;
 			u_short er = rkaddr->rker;
-			if (sc->sc_recal)
-				printf("recal CERR\n");
-#ifdef notdef
-/* THIS ATTEMPTED TO FIND OUT IF THE DRIVE IS SPUN */
-/* DOWN BUT IT DOESN'T SEEM TO WORK... THE DRIVE SEEMS TO */
-/* TELL PAINFULLY LITTLE WHEN IT IS SPUN DOWN (I.E. NOTHING CHANGES) */
-/* THE DRIVE JUST KEEPS SAYING IT WANTS ATTENTION AND BLOWING ALL COMMANDS */
-			if (ds & RK_CDA) {
-				rkaddr->rkcs1 = RK_CDT|RK_CERR;
-				rkaddr->rkcs2 = ui->ui_slave;
-				rkaddr->rkcs1 = RK_CDT|RK_SELECT|RK_GO;
-				rkwait(rkaddr);
-				while ((rkaddr->rkds & RK_SVAL) == 0)
-					if (++del > 512)
-						break;
+#ifdef RKDEBUG
+			if (rkdebug) {
+				printf("cs2=%b ds=%b er=%b\n",
+				    cs2, RKCS2_BITS, ds, 
+				    RKDS_BITS, er, RKER_BITS);
 			}
-			if (del > 512) {
-				printf("rk%d is down\n", dkunit(bp));
-				bp->b_flags |= B_ERROR;
-			} else
 #endif
-			if (ds & RK_WLE) {
-				printf("rk%d is write locked\n", dkunit(bp));
+			if (er & RKER_WLE) {
+				printf("rk%d: write locked\n", dkunit(bp));
 				bp->b_flags |= B_ERROR;
 			} else if (++um->um_tab.b_errcnt > 28 ||
 			    ds&RKDS_HARD || er&RKER_HARD || cs2&RKCS2_HARD) {
-				bp->b_flags |= B_ERROR;
-				harderr(bp);
-				printf("rk%d cs2=%b ds=%b er=%b\n",
-				    dkunit(bp), cs2, RKCS2_BITS, ds, 
+hard:
+				harderr(bp, "rk");
+				printf("cs2=%b ds=%b er=%b\n",
+				    cs2, RKCS2_BITS, ds, 
 				    RKDS_BITS, er, RKER_BITS);
-			} else
-				um->um_tab.b_active = 0;
-			if (cs2&RK_MDS) {
-				rkaddr->rkcs2 = RK_SCLR;
+				bp->b_flags |= B_ERROR;
+				sc->sc_recal = 0;
+			} else if (er & RKER_BSE) {
+#ifndef NOBADSECT
+				if (rkecc(ui, BSE))
+					return;
+				else
+#endif
+					goto hard;
+			} else {
+				if ((er & (RKER_DCK|RKER_ECH)) == RKER_DCK) {
+					if (rkecc(ui, ECC))
+						return;
+				} else
+					um->um_tab.b_active = 0;
+			}
+			if (cs2&RKCS2_MDS) {
+				rkaddr->rkcs2 = RKCS2_SCLR;
 				goto retry;
 			}
 			recal = 0;
-			if (ds&RK_DROT || er&(RK_OPI|RK_SKI|RK_UNS) ||
+			if (ds&RKDS_DROT || er&(RKER_OPI|RKER_SKI|RKER_UNS) ||
 			    (um->um_tab.b_errcnt&07) == 4)
 				recal = 1;
-			if ((er & (RK_DCK|RK_ECH)) == RK_DCK)
-				if (rkecc(ui))
-					return;
-			rkaddr->rkcs1 = RK_CDT|RK_CCLR;
+			rkaddr->rkcs1 = RK_CCLR;
 			rkaddr->rkcs2 = ui->ui_slave;
-			rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
+			rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO;
 			rkwait(rkaddr);
 			if (recal && um->um_tab.b_active == 0) {
-				rkaddr->rkcs1 = RK_CDT|RK_IE|RK_RECAL|RK_GO;
+				rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_RECAL|RK_GO;
 				rkcyl[ui->ui_unit] = -1;
-				rkwait(rkaddr);
-				um->um_tab.b_active = 1;
-				sc->sc_recal = 1;
-				return;
+				sc->sc_recal = 0;
+				goto nextrecal;
 			}
 		}
 retry:
-		if (sc->sc_recal) {
+		switch (sc->sc_recal) {
+
+		case 1:
+			rkaddr->rkcyl = bp->b_cylin;
+			rkcyl[ui->ui_unit] = bp->b_cylin;
+			rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_SEEK|RK_GO;
+			goto nextrecal;
+		case 2:
+			if (um->um_tab.b_errcnt < 16 ||
+			    (bp->b_flags&B_READ) == 0)
+				goto donerecal;
+			rkaddr->rkatt = rk_offset[um->um_tab.b_errcnt & 017];
+			rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_OFFSET|RK_GO;
+			/* fall into ... */
+		nextrecal:
+			sc->sc_recal++;
+			rkwait(rkaddr);
+			um->um_tab.b_active = 1;
+			return;
+		donerecal:
+		case 3:
 			sc->sc_recal = 0;
 			um->um_tab.b_active = 0;
+			break;
 		}
 		ubadone(um);
 		if (um->um_tab.b_active) {
@@ -394,20 +492,27 @@ retry:
 			bp->b_resid = -rkaddr->rkwc * sizeof(short);
 			iodone(bp);
 			if (dp->b_actf)
-				if (rkustart(ui))
-					needie = 0;
+				rkustart(ui);
 		}
 		as &= ~(1<<ui->ui_slave);
 	}
 	for (unit = 0; as; as >>= 1, unit++)
-		if (as & 1)
-			if (rkustart(rkip[rk11][unit]))
-				needie = 0;
+		if (as & 1) {
+			ui = rkip[rk11][unit];
+			if (ui) {
+				rkustart(rkip[rk11][unit]);
+			} else {
+				rkaddr->rkcs1 = RK_CCLR;
+				rkaddr->rkcs2 = unit;
+				rkaddr->rkcs1 = RK_DCLR|RK_GO;
+				rkwait(rkaddr);
+				rkaddr->rkcs1 = RK_CCLR;
+			}
+		}
 	if (um->um_tab.b_actf && um->um_tab.b_active == 0)
-		if (rkstart(um))
-			needie = 0;
-	if (needie)
-		rkaddr->rkcs1 = RK_CDT|RK_IE;
+		rkstart(um);
+	if (((rkaddr->rkcs1) & RK_IE) == 0)
+		rkaddr->rkcs1 = RK_IE;
 }
 
 rkwait(addr)
@@ -418,115 +523,166 @@ rkwait(addr)
 		;
 }
 
-rkread(dev)
+rkread(dev, uio)
 	dev_t dev;
+	struct uio *uio;
 {
 	register int unit = minor(dev) >> 3;
 
 	if (unit >= NRK)
-		u.u_error = ENXIO;
-	else
-		physio(rkstrategy, &rrkbuf[unit], dev, B_READ, minphys);
+		return (ENXIO);
+	return (physio(rkstrategy, &rrkbuf[unit], dev, B_READ, minphys, uio));
 }
 
-rkwrite(dev)
+rkwrite(dev, uio)
 	dev_t dev;
+	struct uio *uio;
 {
 	register int unit = minor(dev) >> 3;
 
 	if (unit >= NRK)
-		u.u_error = ENXIO;
-	else
-		physio(rkstrategy, &rrkbuf[unit], dev, B_WRITE, minphys);
+		return (ENXIO);
+	return (physio(rkstrategy, &rrkbuf[unit], dev, B_WRITE, minphys, uio));
 }
 
-rkecc(ui)
-	register struct uba_dinfo *ui;
+rkecc(ui, flag)
+	register struct uba_device *ui;
 {
 	register struct rkdevice *rk = (struct rkdevice *)ui->ui_addr;
 	register struct buf *bp = rkutab[ui->ui_unit].b_actf;
-	register struct uba_minfo *um = ui->ui_mi;
+	register struct uba_ctlr *um = ui->ui_mi;
 	register struct rkst *st;
 	struct uba_regs *ubp = ui->ui_hd->uh_uba;
-	register int i;
 	caddr_t addr;
-	int reg, bit, byte, npf, mask, o, cmd, ubaddr;
+	int reg, npf, o, cmd, ubaddr;
 	int bn, cn, tn, sn;
 
-	npf = btop((rk->rkwc * sizeof(short)) + bp->b_bcount) - 1;
+#ifndef NOBADSECT
+	if (flag == CONT)
+		npf = bp->b_error;
+	else
+#endif
+		npf = btop((rk->rkwc * sizeof(short)) + bp->b_bcount);
 	reg = btop(um->um_ubinfo&0x3ffff) + npf;
 	o = (int)bp->b_un.b_addr & PGOFSET;
-	printf("SOFT ECC rk%d%c bn%d\n", dkunit(bp),
-	    'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf);
-	mask = rk->rkec2;
-	ubapurge(um);
-	i = rk->rkec1 - 1;		/* -1 makes 0 origin */
-	bit = i&07;
-	i = (i&~07)>>3;
-	byte = i + o;
-	while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) {
-		addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+
-		    (byte & PGOFSET);
-		putmemc(addr, getmemc(addr)^(mask<<bit));
-		byte++;
-		i++;
-		bit -= 8;
-	}
-	um->um_tab.b_active++;	/* Either complete or continuing... */
-	if (rk->rkwc == 0)
-		return (0);
-#ifdef notdef
-	rk->rkcs1 |= RK_GO;
-#else
-	rk->rkcs1 = RK_CDT|RK_CCLR;
-	rk->rkcs2 = ui->ui_slave;
-	rk->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
-	rkwait(rk);
 	bn = dkblock(bp);
 	st = &rkst[ui->ui_type];
 	cn = bp->b_cylin;
-	sn = bn%st->nspc + npf + 1;
+	sn = bn%st->nspc + npf;
 	tn = sn/st->nsect;
 	sn %= st->nsect;
 	cn += tn/st->ntrak;
 	tn %= st->ntrak;
+	ubapurge(um);
+	switch (flag) {
+	case ECC:
+		{
+		register int i;
+		int bit, byte, mask;
+
+		npf--;
+		reg--;
+		printf("rk%d%c: soft ecc sn%d\n", dkunit(bp),
+		    'a'+(minor(bp->b_dev)&07), bp->b_blkno + npf);
+		mask = rk->rkec2;
+		i = rk->rkec1 - 1;		/* -1 makes 0 origin */
+		bit = i&07;
+		i = (i&~07)>>3;
+		byte = i + o;
+		while (i < 512 && (int)ptob(npf)+i < bp->b_bcount && bit > -11) {
+			addr = ptob(ubp->uba_map[reg+btop(byte)].pg_pfnum)+
+			    (byte & PGOFSET);
+			putmemc(addr, getmemc(addr)^(mask<<bit));
+			byte++;
+			i++;
+			bit -= 8;
+		}
+		if (rk->rkwc == 0) {
+			um->um_tab.b_active = 0;
+			return (0);
+		}
+		npf++;
+		reg++;
+		break;
+		}
+
+#ifndef NOBADSECT
+	case BSE:
+#ifdef RKBDEBUG
+		if (rkbdebug)
+	printf("rkecc, BSE: bn %d cn %d tn %d sn %d\n", bn, cn, tn, sn);
+#endif
+		if ((bn = isbad(&rkbad[ui->ui_unit], cn, tn, sn)) < 0)
+			return(0);
+		bp->b_flags |= B_BAD;
+		bp->b_error = npf + 1;
+		bn = st->ncyl*st->nspc - st->nsect - 1 - bn;
+		cn = bn/st->nspc;
+		sn = bn%st->nspc;
+		tn = sn/st->nsect;
+		sn %= st->nsect;
+#ifdef RKBDEBUG
+		if (rkbdebug)
+	printf("revector to cn %d tn %d sn %d\n", cn, tn, sn);
+#endif
+		rk->rkwc = -(512 / sizeof (short));
+		break;
+
+	case CONT:
+#ifdef RKBDEBUG
+		if (rkbdebug)
+	printf("rkecc, CONT: bn %d cn %d tn %d sn %d\n", bn,cn,tn,sn);
+#endif
+		bp->b_flags &= ~B_BAD;
+		rk->rkwc = -((bp->b_bcount - (int)ptob(npf)) / sizeof (short));
+		if (rk->rkwc == 0) {
+			um->um_tab.b_active = 0;
+			return (0);
+		}
+		break;
+#endif
+	}
+	rk->rkcs1 = RK_CCLR;
+	rk->rkcs2 = ui->ui_slave;
+	rk->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO;
+	rkwait(rk);
 	rk->rkcyl = cn;
 	rk->rkda = (tn << 8) | sn;
-	ubaddr = (int)ptob(reg+1) + o;
+	ubaddr = (int)ptob(reg) + o;
 	rk->rkba = ubaddr;
-	cmd = (ubaddr >> 8) & 0x300;
-	cmd |= RK_CDT|RK_IE|RK_GO|RK_READ;
+	cmd = (bp->b_flags&B_READ ? RK_READ : RK_WRITE)|RK_IE|RK_GO;
+	cmd |= (ubaddr >> 8) & 0x300;
+	cmd |= rktypes[ui->ui_type];
 	rk->rkcs1 = cmd;
-#endif
+	um->um_tab.b_active = 2;	/* continuing */
+	um->um_tab.b_errcnt = 0;	/* error has been corrected */
 	return (1);
 }
 
 rkreset(uban)
+	int uban;
 {
-	register struct uba_minfo *um;
-	register struct uba_dinfo *ui;
+	register struct uba_ctlr *um;
+	register struct uba_device *ui;
 	register rk11, unit;
-	int any = 0;
 
 	for (rk11 = 0; rk11 < NHK; rk11++) {
 		if ((um = rkminfo[rk11]) == 0 || um->um_ubanum != uban ||
 		    um->um_alive == 0)
 			continue;
-		if (any == 0) {
-			printf(" rk");
-			any++;
-		}
+		printf(" hk%d", rk11);
 		um->um_tab.b_active = 0;
 		um->um_tab.b_actf = um->um_tab.b_actl = 0;
 		rk_softc[um->um_ctlr].sc_recal = 0;
+		rk_softc[um->um_ctlr].sc_wticks = 0;
 		if (um->um_ubinfo) {
 			printf("<%d>", (um->um_ubinfo>>28)&0xf);
-			ubadone(um);
+			um->um_ubinfo = 0;
 		}
-		for (unit = 0; unit < NHK; unit++) {
+		for (unit = 0; unit < NRK; unit++) {
 			if ((ui = rkdinfo[unit]) == 0)
 				continue;
-			if (ui->ui_alive == 0)
+			if (ui->ui_alive == 0 || ui->ui_mi != um)
 				continue;
 			rkutab[unit].b_active = 0;
 			(void) rkustart(ui);
@@ -537,7 +693,7 @@ rkreset(uban)
 
 rkwatch()
 {
-	register struct uba_minfo *um;
+	register struct uba_ctlr *um;
 	register rk11, unit;
 	register struct rk_softc *sc;
 
@@ -559,7 +715,7 @@ active:
 		sc->sc_wticks++;
 		if (sc->sc_wticks >= 20) {
 			sc->sc_wticks = 0;
-			printf("LOST rkintr ");
+			printf("hk%d: lost interrupt\n", rk11);
 			ubareset(um->um_ubanum);
 		}
 	}
@@ -575,7 +731,7 @@ rkdump(dev)
 	int num, blk, unit;
 	struct size *sizes;
 	register struct uba_regs *uba;
-	register struct uba_dinfo *ui;
+	register struct uba_device *ui;
 	register short *rp;
 	struct rkst *st;
 
@@ -583,23 +739,20 @@ rkdump(dev)
 	if (unit >= NRK)
 		return (ENXIO);
 #define	phys(cast, addr) ((cast)((int)addr & 0x7fffffff))
-	ui = phys(struct uba_dinfo *, rkdinfo[unit]);
+	ui = phys(struct uba_device *, rkdinfo[unit]);
 	if (ui->ui_alive == 0)
 		return (ENXIO);
 	uba = phys(struct uba_hd *, ui->ui_hd)->uh_physuba;
-#if VAX780
-	if (cpu == VAX_780)
-		ubainit(uba);
-#endif
+	ubainit(uba);
 	rkaddr = (struct rkdevice *)ui->ui_physaddr;
 	num = maxfree;
 	start = 0;
-	rkaddr->rkcs1 = RK_CDT|RK_CERR;
+	rkaddr->rkcs1 = RK_CCLR;
 	rkaddr->rkcs2 = unit;
-	rkaddr->rkcs1 = RK_CDT|RK_DCLR|RK_GO;
+	rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_DCLR|RK_GO;
 	rkwait(rkaddr);
-	if ((rkaddr->rkds & RK_VV) == 0) {
-		rkaddr->rkcs1 = RK_CDT|RK_IE|RK_PACK|RK_GO;
+	if ((rkaddr->rkds & RKDS_VV) == 0) {
+		rkaddr->rkcs1 = rktypes[ui->ui_type]|RK_IE|RK_PACK|RK_GO;
 		rkwait(rkaddr);
 	}
 	st = &rkst[ui->ui_type];
@@ -615,7 +768,7 @@ rkdump(dev)
 		blk = num > DBSIZE ? DBSIZE : num;
 		io = uba->uba_map;
 		for (i = 0; i < blk; i++)
-			*(int *)io++ = (btop(start)+i) | (1<<21) | UBA_MRV;
+			*(int *)io++ = (btop(start)+i) | (1<<21) | UBAMR_MRV;
 		*(int *)io = 0;
 		bn = dumplo + btop(start);
 		cn = bn/st->nspc + sizes[minor(dev)&07].cyloff;
@@ -627,7 +780,7 @@ rkdump(dev)
 		*rp = (tn << 8) + sn;
 		*--rp = 0;
 		*--rp = -blk*NBPG / sizeof (short);
-		*--rp = RK_CDT|RK_GO|RK_WRITE;
+		*--rp = rktypes[ui->ui_type]|RK_GO|RK_WRITE;
 		rkwait(rkaddr);
 		if (rkaddr->rkcs1 & RK_CERR)
 			return (EIO);