Merge RELENG_2_0_5 into HEAD

11 files changed, 206 insertions, 202 deletions

diff --git a/sys/i386/boot/biosboot/boot.c b/sys/i386/boot/biosboot/boot.c
index 8ff7d8e..723a829 100644
--- a/sys/i386/boot/biosboot/boot.c
+++ b/sys/i386/boot/biosboot/boot.c
@@ -24,7 +24,7 @@
  * the rights to redistribute these changes.
  *
  *	from: Mach, [92/04/03  16:51:14  rvb]
- *	$Id: boot.c,v 1.42 1995/04/21 22:20:34 julian Exp $
+ *	$Id: boot.c,v 1.43.2.1 1995/05/31 21:42:38 jkh Exp $
  */
 
 
@@ -76,6 +76,7 @@ boot(int drive)
 	int ret;
 	char *t;
 
+#if 0
 #ifndef FORCE_COMCONSOLE
 	if (probe_keyboard()) {
 		init_serial();
@@ -87,6 +88,7 @@ boot(int drive)
 	loadflags |= RB_SERIAL;
 	printf("\nSerial console forced.");
 #endif
+#endif
 
 	/* Pick up the story from the Bios on geometry of disks */
 
diff --git a/sys/i386/conf/GENERIC b/sys/i386/conf/GENERIC
index 675c405..3de583d 100644
--- a/sys/i386/conf/GENERIC
+++ b/sys/i386/conf/GENERIC
@@ -1,7 +1,7 @@
 #
 # GENERIC -- Generic machine with WD/AHx/NCR/BTx family disks
 #
-#	$Id: GENERIC,v 1.44 1995/05/02 04:40:06 phk Exp $
+#	$Id: GENERIC,v 1.45.2.3 1995/06/05 21:50:41 jkh Exp $
 #
 
 machine		"i386"
@@ -88,12 +88,15 @@ device		lpt0	at isa? port? tty irq 7 vector lptintr
 device		lpt1	at isa? port? tty
 device		lpt2	at isa? port? tty
 
+# Order is important here due to intrusive probes, do *not* alphabetize
+# this list of network interfaces until the probes have been fixed.
+# Right now it appears that the ie0 must be probed before ep0. See
+# revision 1.20 of this file.
 device de0
 device ed0 at isa? port 0x280 net irq  5 iomem 0xd8000 vector edintr
 device ed1 at isa? port 0x300 net irq  5 iomem 0xd8000 vector edintr
-device eg0 at isa? port 0x310 net irq 5 vector egintr
-device ep0 at isa? port 0x300 net irq 10 vector epintr
 device ie0 at isa? port 0x360 net irq  7 iomem 0xd0000 vector ieintr
+device ep0 at isa? port 0x300 net irq 10 vector epintr
 device ix0 at isa? port 0x300 net irq 10 iomem 0xd0000 iosiz 32768 vector ixintr
 device le0 at isa? port 0x300 net irq 5 iomem 0xd0000 vector le_intr
 device lnc0 at isa? port 0x280 net irq 10 drq 0 vector lncintr
@@ -105,9 +108,8 @@ pseudo-device	loop
 pseudo-device	ether
 pseudo-device	log
 pseudo-device	sl	1
-pseudo-device	ppp	1
+# ijppp uses tun instead of ppp device
+#pseudo-device	ppp	1
+pseudo-device	tun	1
 pseudo-device	pty	16
-pseudo-device	speaker
 pseudo-device	gzip		# Exec gzipped a.out's
-pseudo-device	vn
-pseudo-device	tun	1
diff --git a/sys/i386/i386/exception.s b/sys/i386/i386/exception.s
index 5d4f469..be6cfb3 100644
--- a/sys/i386/i386/exception.s
+++ b/sys/i386/i386/exception.s
@@ -30,7 +30,7 @@
  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
  * SUCH DAMAGE.
  *
- *	$Id: exception.s,v 1.7 1995/01/14 13:20:05 bde Exp $
+ *	$Id: exception.s,v 1.8.2.1 1995/06/05 00:22:02 davidg Exp $
  */
 
 #include "npx.h"				/* NNPX */
@@ -251,34 +251,26 @@ IDTVEC(syscall)
  */
 	SUPERALIGN_TEXT
 IDTVEC(linux_syscall)
-	pushl	$0
-	pushl	$0
+	pushfl					/* Room for tf_err */
+	pushfl					/* Room for tf_trapno */
 	pushal
 	pushl	%ds
 	pushl	%es
-	movl	$KDSEL,%eax
+	movl	$KDSEL,%eax			/* switch to kernel segments */
 	movl	%ax,%ds
 	movl	%ax,%es
+	movl	TF_ERR(%esp),%eax		/* copy eflags from tf_err to fs_eflags */
+	movl	%eax,TF_EFLAGS(%esp)
 	FAKE_MCOUNT(12*4(%esp))
 	incl	_cnt+V_SYSCALL
-	orl	$SWI_AST_MASK,_cpl
+	movl	$SWI_AST_MASK,_cpl
 	call	_linux_syscall
 	/*
-	 * There was no place to save the cpl so we have to recover it
-	 * indirectly.  For traps from user mode it was 0, and for traps
-	 * from kernel mode Oring SWI_AST_MASK into it didn't change it.
-	 */
-	subl	%eax,%eax
-	testb	$SEL_RPL_MASK,TRAPF_CS_OFF(%esp)
-	jne	1f
-	movl	_cpl,%eax
-1:
-	/*
-	 * Return via _doreti to handle ASTs.  Have to change trap frame
-	 * to interrupt frame.
+	 * Return via _doreti to handle ASTs.
 	 */
-	pushl	%eax
+	pushl	$0				/* cpl to restore */
 	subl	$4,%esp
+	movb	$1,_intr_nesting_level
 	MEXITCOUNT
 	jmp	_doreti
 #endif /* COMPAT_LINUX */
diff --git a/sys/i386/i386/trap.c b/sys/i386/i386/trap.c
index 5e1489a..997b2f2 100644
--- a/sys/i386/i386/trap.c
+++ b/sys/i386/i386/trap.c
@@ -35,7 +35,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)trap.c	7.4 (Berkeley) 5/13/91
- *	$Id: trap.c,v 1.51 1995/03/21 07:16:12 davidg Exp $
+ *	$Id: trap.c,v 1.52.2.1 1995/06/05 00:22:04 davidg Exp $
  */
 
 /*
@@ -885,22 +885,18 @@ linux_syscall(frame)
 	int rval[2];
 	int code;
 	struct linux_syscall_args {
-		int ebx;
-		int ecx;
-		int edx;
-		int esi;
-		int edi;
-		int ebp;
-		int eax;
+		int arg1;
+		int arg2;
+		int arg3;
+		int arg4;
+		int arg5;
 	} args;
 
-	args.ebx = frame.tf_ebx;
-	args.ecx = frame.tf_ecx;
-	args.edx = frame.tf_edx;
-	args.esi = frame.tf_esi;
-	args.edi = frame.tf_edi;
-	args.ebp = frame.tf_ebp;
-	args.eax = frame.tf_eax;
+	args.arg1 = frame.tf_ebx;
+	args.arg2 = frame.tf_ecx;
+	args.arg3 = frame.tf_edx;
+	args.arg4 = frame.tf_esi;
+	args.arg5 = frame.tf_edi;
 
 	sticks = p->p_sticks;
 	if (ISPL(frame.tf_cs) != SEL_UPL)
@@ -910,12 +906,8 @@ linux_syscall(frame)
 	p->p_md.md_regs = (int *)&frame;
 	params = (caddr_t)frame.tf_esp + sizeof (int) ;
 
-	/*
-	 * Reconstruct pc, assuming lcall $X,y is 7 bytes, as it is always.
-	 * THIS IS WRONG FOR LINUX  XXX SOS
-	 * SIZE OF INT 0x80 (2??) NEEDED HERE !!!
-	 */
-	opc = frame.tf_eip - 2; /* was 7 */
+	/* Reconstruct pc, subtract size of int 0x80 */
+	opc = frame.tf_eip - 2;
 	if (code == 0) {
 		code = fuword(params);
 		params += sizeof (int);
diff --git a/sys/i386/i386/tsc.c b/sys/i386/i386/tsc.c
index e1bc372..bf8b8ef 100644
--- a/sys/i386/i386/tsc.c
+++ b/sys/i386/i386/tsc.c
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)clock.c	7.2 (Berkeley) 5/12/91
- *	$Id: clock.c,v 1.33 1995/05/11 07:44:40 bde Exp $
+ *	$Id: clock.c,v 1.34.2.1 1995/06/09 03:29:17 davidg Exp $
  */
 
 /*
@@ -453,7 +453,7 @@ inittodr(time_t base)
 	splx(s);
 
 	/* Look	if we have a RTC present and the time is valid */
-	if (rtcin(RTC_STATUSD) != RTCSD_PWR)
+	if (!(rtcin(RTC_STATUSD) & RTCSD_PWR))
 		goto wrong_time;
 
 	/* wait	for time update	to complete */
diff --git a/sys/i386/isa/clock.c b/sys/i386/isa/clock.c
index e1bc372..bf8b8ef 100644
--- a/sys/i386/isa/clock.c
+++ b/sys/i386/isa/clock.c
@@ -34,7 +34,7 @@
  * SUCH DAMAGE.
  *
  *	from: @(#)clock.c	7.2 (Berkeley) 5/12/91
- *	$Id: clock.c,v 1.33 1995/05/11 07:44:40 bde Exp $
+ *	$Id: clock.c,v 1.34.2.1 1995/06/09 03:29:17 davidg Exp $
  */
 
 /*
@@ -453,7 +453,7 @@ inittodr(time_t base)
 	splx(s);
 
 	/* Look	if we have a RTC present and the time is valid */
-	if (rtcin(RTC_STATUSD) != RTCSD_PWR)
+	if (!(rtcin(RTC_STATUSD) & RTCSD_PWR))
 		goto wrong_time;
 
 	/* wait	for time update	to complete */
diff --git a/sys/i386/isa/fd.c b/sys/i386/isa/fd.c
index be36035..3c46823 100644
--- a/sys/i386/isa/fd.c
+++ b/sys/i386/isa/fd.c
@@ -43,7 +43,7 @@
  * SUCH DAMAGE.
  *
  *	from:	@(#)fd.c	7.4 (Berkeley) 5/25/91
- *	$Id: fd.c,v 1.60 1995/05/09 12:25:52 rgrimes Exp $
+ *	$Id: fd.c,v 1.61.2.1 1995/06/08 10:26:23 davidg Exp $
  *
  */
 
@@ -1080,12 +1080,11 @@ fdstrategy(struct buf *bp)
 	fd = &fd_data[fdu];
 	fdc = fd->fdc;
 	fdcu = fdc->fdcu;
-	fdblk = 128 << (fd->ft->secsize);
 
 #if NFT > 0
 	if (FDTYPE(minor(bp->b_dev)) & F_TAPE_TYPE) {
 		/* ft tapes do not (yet) support strategy i/o */
-		bp->b_error = ENXIO;
+		bp->b_error = ENODEV;
 		bp->b_flags |= B_ERROR;
 		goto bad;
 	}
@@ -1096,6 +1095,7 @@ fdstrategy(struct buf *bp)
 		goto bad;
 	}
 #endif
+	fdblk = 128 << (fd->ft->secsize);
 	if (!(bp->b_flags & B_FORMAT)) {
 		if ((fdu >= NFD) || (bp->b_blkno < 0)) {
 			printf(
diff --git a/sys/i386/isa/if_el.c b/sys/i386/isa/if_el.c
index 2232a70..0571a8a 100644
--- a/sys/i386/isa/if_el.c
+++ b/sys/i386/isa/if_el.c
@@ -6,7 +6,7 @@
  *
  * Questions, comments, bug reports and fixes to kimmel@cs.umass.edu.
  *
- * $Id: if_el.c,v 1.12 1995/04/12 20:47:48 wollman Exp $
+ * $Id: if_el.c,v 1.13.2.1 1995/06/09 18:12:09 davidg Exp $
  */
 /* Except of course for the portions of code lifted from other FreeBSD
  * drivers (mainly elread, elget and el_ioctl)
@@ -768,6 +768,7 @@ el_ioctl(ifp, command, data)
 		    	    ((ifp->if_flags & IFF_RUNNING) == 0))
 				el_init(ifp->if_unit);
 		}
+		break;
 
 	case SIOCSIFMTU:
 
diff --git a/sys/i386/isa/matcd/matcd.c b/sys/i386/isa/matcd/matcd.c
index 1809ec9..e57f387 100644
--- a/sys/i386/isa/matcd/matcd.c
+++ b/sys/i386/isa/matcd/matcd.c
@@ -2405,9 +2405,21 @@ static int matcd_toc_entries(int ldrive, int cdrive, int controller,
 	array from the kernel address space into the user address space
 */
 
-	if (copyout(entries, ioc_entry->data,
-	    (trk)*sizeof(struct cd_toc_entry)) != 0) {
-		return(EFAULT);
+	{
+	    int len = ioc_entry->data_len;
+	    int i = ioc_entry->starting_track - 1;
+	    struct cd_toc_entry* from = &entries[i];
+	    struct cd_toc_entry* to = ioc_entry->data;
+
+	    while (i < trk && len >= sizeof(struct cd_toc_entry)) {
+		if (copyout(from, to, sizeof(struct cd_toc_entry)) != 0) {
+		    return (EFAULT);
+		}
+		i++;
+		len -= sizeof(struct cd_toc_entry);
+		from++;
+		to++;
+	    }
 	}
 	return(0);
 
diff --git a/sys/i386/scsi/aic7xxx.c b/sys/i386/scsi/aic7xxx.c
index 8d8f213..08e31f6 100644
--- a/sys/i386/scsi/aic7xxx.c
+++ b/sys/i386/scsi/aic7xxx.c
@@ -24,7 +24,7 @@
  *
  * commenced: Sun Sep 27 18:14:01 PDT 1992
  *
- *      $Id: aic7xxx.c,v 1.27 1995/05/17 07:06:00 davidg Exp $
+ *      $Id: aic7xxx.c,v 1.28.2.3 1995/06/09 18:06:45 davidg Exp $
  */
 /*
  * TODO:
@@ -193,8 +193,17 @@ struct scsi_device ahc_dev =
 #define		REQO		0x02
 #define		ACKO		0x01
 
-/* XXX document this thing */
+/* 
+ * SCSI Rate Control (p. 3-17).
+ * Contents of this register determine the Synchronous SCSI data transfer
+ * rate and the maximum synchronous Req/Ack offset.  An offset of 0 in the
+ * SOFS (3:0) bits disables synchronous data transfers.  Any offset value
+ * greater than 0 enables synchronous transfers.
+ */
 #define SCSIRATE		0xc04ul
+#define WIDEXFER		0x80		/* Wide transfer control */
+#define SXFR			0x70		/* Sync transfer rate */
+#define SOFS			0x0f		/* Sync offset */
 
 /*
  * SCSI ID (p. 3-18).
@@ -785,42 +794,49 @@ ahcintr(unit)
 		      (inb(SEQADDR1 + iobase) << 8) |
 		      inb(SEQADDR0 + iobase));
         }
-        if (intstat & SEQINT) {
-                unsigned char transfer;
-
+        if (intstat & SEQINT) { 
+		u_short targ_mask;
+		u_char target = (inb(SCSIID + iobase) >> 4) & 0x0f;
+		u_char scratch_offset = target;
+		char channel = 
+			inb(SBLKCTL + iobase) & SELBUSB ? 'B': 'A';
+
+		if (channel == 'B')
+			scratch_offset += 8;
+		targ_mask = (0x01 << scratch_offset); 
+		
                 switch (intstat & SEQINT_MASK) {
                     case BAD_PHASE:
-                        panic("ahc%d: unknown scsi bus phase.  "
-			      "Attempting to continue\n", unit);
-                        break;
-                    case SEND_REJECT:
-                        printf("ahc%d: Warning - "
-                              "message reject, message type: 0x%x\n", unit,
+                        panic("ahc%d:%c:%d: unknown scsi bus phase.  "
+			      "Attempting to continue\n",
+			      unit, channel, target);  
+                        break; 
+                    case SEND_REJECT: 
+                        printf("ahc%d:%c:%d: Warning - " 
+                              "message reject, message type: 0x%x\n", 
+			      unit, channel, target,
                               inb(HA_REJBYTE + iobase));
-                        break;
-                    case NO_IDENT:
-                        panic("ahc%d: No IDENTIFY message from reconnecting "
-			      "target %d at seqaddr = 0x%lx "
-			      "SAVED_TCL == 0x%x\n",
-                              unit, (inb(SELID + iobase) >> 4) & 0xf,
-			      (inb(SEQADDR1 + iobase) << 8) |
-			      inb(SEQADDR0 + iobase),
+                        break; 
+                    case NO_IDENT: 
+                        panic("ahc%d:%c:%d: Target did not send an IDENTIFY "
+			      "message. SAVED_TCL == 0x%x\n",
+                              unit, channel, target,
 			      inb(SAVED_TCL + iobase));
 			break;
                     case NO_MATCH:
 			{
 				u_char active;
 				int active_port = HA_ACTIVE0 + iobase;
-				int tcl = inb(SCBARRAY+1 + iobase);
-				int target = (tcl >> 4) & 0x0f;
-				printf("ahc%d: no active SCB for reconnecting "
-				    "target %d, channel %c - issuing ABORT\n",
-				    unit, target, tcl & 0x08 ? 'B' : 'A');
+				printf("ahc%d:%c:%d: no active SCB - "
+				       "issuing ABORT\n", unit, channel, 
+				       target);
 				printf("SAVED_TCL == 0x%x\n",
 					inb(SAVED_TCL + iobase));
-				if( tcl & 0x88 ) {
-					/* Second channel stores its info
-					 * in byte two of HA_ACTIVE
+				if(targ_mask & 0xff00) {
+					/* 
+					 * targets on the Second channel or
+					 * above id 7 store info in byte two 
+					 * of HA_ACTIVE
 					 */
 					active_port++;
 				}
@@ -834,36 +850,32 @@ ahcintr(unit)
 			}
                     case MSG_SDTR:
 			{
-				u_char scsi_id, offset, rate, targ_scratch;
-				u_char maxoffset, mask;
-	                        /*
-				 * Help the sequencer to translate the
-				 * negotiated transfer rate.  Transfer is
-				 * 1/4 the period in ns as is returned by
-				 * the sync negotiation message.  So, we must
+				u_char period, offset, rate;
+				u_char targ_scratch;
+				u_char maxoffset;
+	                        /* 
+				 * Help the sequencer to translate the 
+				 * negotiated transfer rate.  Transfer is 
+				 * 1/4 the period in ns as is returned by 
+				 * the sync negotiation message.  So, we must 
 				 * multiply by four
 				 */
-	                        transfer = inb(HA_ARG_1 + iobase) << 2;
-				/* The bottom half of SCSIXFER */
+	                        period = inb(HA_ARG_1 + iobase) << 2;
 				offset = inb(ACCUM + iobase);
-				scsi_id = inb(SCSIID + iobase) >> 0x4;
-				if(inb(SBLKCTL + iobase) & 0x08)
-					/* B channel */
-					scsi_id += 8;
-				mask = (0x01 << scsi_id);
-				targ_scratch = inb(HA_TARG_SCRATCH + iobase
-						   + scsi_id);
-				if(targ_scratch & 0x80)
+				targ_scratch = inb(HA_TARG_SCRATCH + iobase 
+						   + scratch_offset);
+				if(targ_scratch & WIDEXFER)
 					maxoffset = 0x08;
 				else
 					maxoffset = 0x0f;
-				ahc_scsirate(&rate, transfer,
-					MIN(offset,maxoffset), unit, scsi_id);
+				ahc_scsirate(&rate, period, 
+					MIN(offset,maxoffset), unit, target);
 				/* Preserve the WideXfer flag */
-				rate |= targ_scratch & 0x80;
-				outb(HA_TARG_SCRATCH + iobase + scsi_id, rate);
-				outb(SCSIRATE + iobase, rate);
-				if( (rate & 0x0f) == 0 )
+				targ_scratch = rate | (targ_scratch & WIDEXFER);
+				outb(HA_TARG_SCRATCH + iobase + scratch_offset,
+				     targ_scratch);
+				outb(SCSIRATE + iobase, targ_scratch); 
+				if( (targ_scratch & 0x0f) == 0 ) 
 				{
 					/*
 					 * The requested rate was so low
@@ -877,7 +889,7 @@ ahcintr(unit)
 					outb(HA_RETURN_1 + iobase, SEND_REJ);
 				}
 				/* See if we initiated Sync Negotiation */
-				else if(ahc->sdtrpending & mask)
+				else if(ahc->sdtrpending & targ_mask)
 				{
 					/*
 					 * Don't send an SDTR back to
@@ -898,25 +910,20 @@ ahcintr(unit)
 				/*
 				 * Negate the flags
 				 */
-				ahc->needsdtr &= ~mask;
-				ahc->sdtrpending &= ~mask;
+				ahc->needsdtr &= ~targ_mask;
+				ahc->sdtrpending &= ~targ_mask;
 	                        break;
 			}
                     case MSG_WDTR:
 			{
-				u_char scsi_id, scratch, bus_width;
+				u_char scratch, bus_width;
 
 				bus_width = inb(ACCUM + iobase);
-				scsi_id = inb(SCSIID + iobase) >> 0x4;
-
-				if(inb(SBLKCTL + iobase) & 0x08)
-					/* B channel */
-					scsi_id += 8;
 
-				scratch = inb(HA_TARG_SCRATCH + iobase
-					      + scsi_id);
+				scratch = inb(HA_TARG_SCRATCH + iobase 
+					      + scratch_offset);
 
-				if(ahc->wdtrpending & (0x01 << scsi_id))
+				if(ahc->wdtrpending & targ_mask)
 				{
 					/*
 					 * Don't send a WDTR back to the
@@ -932,8 +939,8 @@ ahcintr(unit)
 		        				printf("ahc%d: target "
 							       "%d using 16Bit "
 							       "transfers\n",
-								unit, scsi_id);
-							scratch |= 0x80;
+								unit, target);
+							scratch |= 0x80;	
 							break;
 					}
 				}
@@ -954,17 +961,18 @@ ahcintr(unit)
 		        				printf("ahc%d: target "
 							       "%d using 16Bit "
 							       "transfers\n",
-								unit, scsi_id);
-							scratch |= 0x80;
+								unit, target);
+							scratch |= 0x80;	
 							break;
 					}
 					outb(HA_RETURN_1 + iobase,
 						bus_width | SEND_WDTR);
 				}
-				ahc->needwdtr &= ~(0x01 << scsi_id);
-				ahc->wdtrpending &= ~(0x01 << scsi_id);
-				outb(HA_TARG_SCRATCH + iobase + scsi_id, scratch);
-				outb(SCSIRATE + iobase, scratch);
+				ahc->needwdtr &= ~targ_mask;
+				ahc->wdtrpending &= ~targ_mask;
+				outb(HA_TARG_SCRATCH + iobase + scratch_offset, 
+				     scratch);
+				outb(SCSIRATE + iobase, scratch); 
 	                        break;
 			}
 		    case MSG_REJECT:
@@ -977,36 +985,29 @@ ahcintr(unit)
 				 */
 
 				u_char targ_scratch;
-				u_char scsi_id = inb(SCSIID + iobase) >> 0x4;
-				u_short mask;
-
-				if(inb(SBLKCTL + iobase) & 0x08)
-					/* B channel */
-					scsi_id += 8;
 
 				targ_scratch = inb(HA_TARG_SCRATCH + iobase
-						   + scsi_id);
+						   + scratch_offset);
 
-				mask = (0x01 << scsi_id);
-				if(ahc->wdtrpending & mask){
+				if(ahc->wdtrpending & targ_mask){
 					/* note 8bit xfers and clear flag */
 					targ_scratch &= 0x7f;
-					ahc->needwdtr &= ~mask;
-					ahc->wdtrpending &= ~mask;
-        				printf("ahc%d: target %d refusing "
+					ahc->needwdtr &= ~targ_mask;
+					ahc->wdtrpending &= ~targ_mask;
+        				printf("ahc%d:%c:%d: refusing "
 					       "WIDE negotiation.  Using "
 					       "8bit transfers\n",
-						unit, scsi_id);
+						unit, channel, target);
 				}
-				else if(ahc->sdtrpending & mask){
+				else if(ahc->sdtrpending & targ_mask){
 					/* note asynch xfers and clear flag */
 					targ_scratch &= 0xf0;
-					ahc->needsdtr &= ~mask;
-					ahc->sdtrpending &= ~mask;
-        				printf("ahc%d: target %d refusing "
+					ahc->needsdtr &= ~targ_mask;
+					ahc->sdtrpending &= ~targ_mask;
+        				printf("ahc%d:%c:%d: refusing "
 					       "syncronous negotiation.  Using "
 					       "asyncronous transfers\n",
-						unit, scsi_id);
+						unit, channel, target);
 				}
 				else {
 					/*
@@ -1014,12 +1015,13 @@ ahcintr(unit)
 					 */
 #ifdef AHC_DEBUG
 					if(ahc_debug & AHC_SHOWMISC)
-						printf("Message reject -- "
-						       "ignored\n");
+						printf("ahc%d:%c:%d: Message 
+							reject -- ignored\n",
+							unit, channel, target);
 #endif
 					break;
 				}
-				outb(HA_TARG_SCRATCH + iobase + scsi_id,
+				outb(HA_TARG_SCRATCH + iobase + scratch_offset,
 				     targ_scratch);
 				outb(SCSIRATE + iobase, targ_scratch);
 				break;
@@ -1046,9 +1048,9 @@ ahcintr(unit)
 			   */
 			  outb(HA_RETURN_1 + iobase, 0);
 		 	  if (!scb || !(scb->flags & SCB_ACTIVE)) {
-                              printf("ahc%d: ahcintr - referenced scb not "
-				     "valid during seqint 0x%x scb(%d)\n",
-				     unit, intstat, scb_index);
+                              printf("ahc%d:%c:%d: ahcintr - referenced scb "
+				     "not valid during seqint 0x%x scb(%d)\n", 
+				     unit, channel, target, intstat, scb_index);
 			      goto clear;
 			  }
 
@@ -1068,12 +1070,8 @@ ahcintr(unit)
 				break;
 			    case SCSI_CHECK:
 #ifdef AHC_DEBUG
-				printf("ahc%d: target %d, lun %d (%s%d) "
-					"requests Check Status\n", unit
-					,xs->sc_link->target
-					,xs->sc_link->lun
-					,xs->sc_link->device->name
-					,xs->sc_link->dev_unit);
+				sc_print_addr(xs->sc_link);
+				printf("requests Check Status\n");
 #endif
 
 				if((xs->error == XS_NOERROR) &&
@@ -1083,19 +1081,13 @@ ahcintr(unit)
 					u_char tail;
 					struct ahc_dma_seg *sg = scb->ahc_dma;
 					struct scsi_sense *sc = &(scb->sense_cmd);
-					u_char control = scb->control;
 					u_char tcl = scb->target_channel_lun;
 #ifdef AHC_DEBUG
-					printf("ahc%d: target %d, lun %d "
-						"(%s%d) Sending Sense\n", unit
-						,xs->sc_link->target
-						,xs->sc_link->lun
-						,xs->sc_link->device->name
-						,xs->sc_link->dev_unit);
+					sc_print_addr(xs->sc_link);
+					printf("Sending Sense\n");
 #endif
 					bzero(scb, SCB_DOWN_SIZE);
 					scb->flags |= SCB_SENSE;
-					scb->control = (control & SCB_TE);
 					sc->op_code = REQUEST_SENSE;
 					sc->byte2 =  xs->sc_link->lun << 5;
 					sc->length = sizeof(struct scsi_sense_data);
@@ -1157,17 +1149,20 @@ ahcintr(unit)
 				break;
 			    case SCSI_BUSY:
 				xs->error = XS_BUSY;
-				printf("ahc%d: Target Busy\n", unit);
+				sc_print_addr(xs->sc_link);
+				printf("Target Busy\n");
 				break;
 			    case SCSI_QUEUE_FULL:
 				/*
 				 * The upper level SCSI code will eventually
 				 * handle this properly.
 				 */
-				printf("ahc%d: Queue Full\n", unit);
+				sc_print_addr(xs->sc_link);
+				printf("Queue Full\n");
 				xs->error = XS_BUSY;
 				break;
 			    default:
+				sc_print_addr(xs->sc_link);
 				printf("unexpected targ_status: %x\n",
 					scb->target_status);
 				xs->error = XS_DRIVER_STUFFUP;
@@ -1180,18 +1175,23 @@ ahcintr(unit)
 			int   scb_index;
 			scb_index = inb(SCBPTR + iobase);
 			scb = ahc->scbarray[scb_index];
+			xs = scb->xs;
 			/*
 			 * Don't clobber valid resid info with
 			 * a resid coming from a check sense
 			 * operation.
 			 */
-			if(!(scb->flags & SCB_SENSE))
+			if(!(scb->flags & SCB_SENSE)) {
 			    scb->xs->resid = (inb(iobase+SCBARRAY+17) << 16) |
 					     (inb(iobase+SCBARRAY+16) << 8) |
 					      inb(iobase+SCBARRAY+15);
+				xs->flags |= SCSI_RESID_VALID;
 #ifdef AHC_DEBUG
-			printf("ahc: Handled Residual\n");
+				sc_print_addr(xs->sc_link);
+				printf("Handled Residual of %d bytes\n",
+					scb->xs->resid);
 #endif
+			}
 			break;
 		  }
 		  case ABORT_TAG:
@@ -1199,16 +1199,13 @@ ahcintr(unit)
                         int   scb_index;
 			scb_index = inb(SCBPTR + iobase);
 			scb = ahc->scbarray[scb_index];
+			xs = scb->xs;
 			/*
 			 * We didn't recieve a valid tag back from
 			 * the target on a reconnect.
 			 */
-			printf("ahc%d: invalid tag recieved on channel %c "
-			       "target %d, lun %d -- sending ABORT_TAG\n",
-			       unit,
-			       ((u_long)xs->sc_link->fordriver & 0x08)? 'B':'A',
-			       xs->sc_link->target,
-			       xs->sc_link->lun);
+			sc_print_addr(xs->sc_link);
+			printf("invalid tag recieved -- sending ABORT_TAG\n");
 			scb->xs->error = XS_DRIVER_STUFFUP;
 			untimeout(ahc_timeout, (caddr_t)scb);
 			ahc_done(unit, scb);
@@ -1311,15 +1308,11 @@ clear:
 			outb(WAITING_SCBH + iobase, waiting);
 
                         RESTART_SEQUENCER(ahc);
-                }
-
-                else if (status & SCSIPERR) {
-                        printf("ahc%d: parity error on channel %c "
-			       "target %d, lun %d\n",
-			       unit,
-			       ((u_long)xs->sc_link->fordriver & 0x08)? 'B':'A',
-                               xs->sc_link->target,
-                               xs->sc_link->lun);
+                }       
+                        
+                else if (status & SCSIPERR) { 
+			sc_print_addr(xs->sc_link);
+                        printf("parity error\n");
                         xs->error = XS_DRIVER_STUFFUP;
 
                         outb(CLRSINT1 + iobase, CLRSCSIPERR);
@@ -1329,8 +1322,8 @@ clear:
 			scb = NULL;
                 }
                 else if (!(status & BUSFREE)) {
-                      printf("ahc%d: Unknown SCSIINT. Status = 0x%x\n",
-			     unit, status);
+		      sc_print_addr(xs->sc_link);
+                      printf("Unknown SCSIINT. Status = 0x%x\n", status);
                       outb(CLRSINT1 + iobase, status);
                       UNPAUSE_SEQUENCER(ahc);
                       outb(CLRINT + iobase, CLRSCSIINT);
@@ -1477,13 +1470,18 @@ ahc_init(unit)
 		printf("ahc%d: 284x ", unit);
 		ahc->maxscbs = 0x4;
 		break;
+	   case AHC_AIC7850:
 	   case AHC_AIC7870:
 	   case AHC_294:
-		if( ahc->type == AHC_AIC7870)
+		ahc->maxscbs = 0x10;
+		if(ahc->type == AHC_AIC7850){
+			printf("ahc%d: aic7850 ", unit);
+			ahc->maxscbs = 0x03;
+		}
+		else if(ahc->type == AHC_AIC7870)
 			printf("ahc%d: aic7870 ", unit);
 		else
 			printf("ahc%d: 294x ", unit);
-		ahc->maxscbs = 0x10;
 		#define DFTHRESH        3
 		outb(DSPCISTATUS + iobase, DFTHRESH << 6);
 		/*
@@ -1530,7 +1528,7 @@ ahc_init(unit)
 	 * Number of SCBs that will be used. Rev E aic7770s and
 	 * aic7870s have 16.  The rest have 4.
 	 */
-	if(!(ahc->type & AHC_AIC7870))
+	if(!(ahc->type & AHC_AIC78X0))
 	{
 		/*
 		 * See if we have a Rev E or higher
@@ -1559,7 +1557,7 @@ ahc_init(unit)
 		printf("aic7870, ");
 	printf("%d SCBs\n", ahc->maxscbs);
 
-	if(!(ahc->type & AHC_AIC7870)) {
+	if(!(ahc->type & AHC_AIC78X0)) {
 		if(ahc->pause & IRQMS)
 			printf("ahc%d: Using Level Sensitive Interrupts\n",
 				unit);
@@ -1567,7 +1565,7 @@ ahc_init(unit)
 			printf("ahc%d: Using Edge Triggered Interrupts\n",
 				unit);
 	}
-	if(!(ahc->type & AHC_AIC7870)){
+	if(!(ahc->type & AHC_AIC78X0)){
 	/*
 	 * The 294x cards are PCI, so we get their interrupt from the PCI
 	 * BIOS.
@@ -1701,7 +1699,7 @@ ahc_init(unit)
 	printf("Done\n");
 
         outb(SEQCTL + iobase, FASTMODE);
-	if (!(ahc->type & AHC_AIC7870))
+	if (!(ahc->type & AHC_AIC78X0))
 		outb(BCTL + iobase, ENABLE);
 
 	/* Reset the bus */
@@ -1800,6 +1798,7 @@ ahc_scsi_cmd(xs)
         scb->cmdlen = xs->cmdlen;
 	scb->cmdpointer = KVTOPHYS(xs->cmd);
 	xs->resid = 0;
+	xs->status = 0;
         if (xs->datalen) {      /* should use S/G only if not zero length */
                 scb->SG_list_pointer = KVTOPHYS(scb->ahc_dma);
                 sg = scb->ahc_dma;
diff --git a/sys/i386/scsi/aic7xxx.h b/sys/i386/scsi/aic7xxx.h
index 7623be7..bd7a865 100644
--- a/sys/i386/scsi/aic7xxx.h
+++ b/sys/i386/scsi/aic7xxx.h
@@ -20,7 +20,7 @@
  * 4. Modifications may be freely made to this file if the above conditions
  *    are met.
  *
- *	$Id: aic7xxx.h,v 1.8 1995/05/17 07:06:02 davidg Exp $
+ *	$Id: aic7xxx.h,v 1.9.2.1 1995/06/04 09:15:29 davidg Exp $
  */
 
 #ifndef _AIC7XXX_H_
@@ -45,14 +45,18 @@ struct ahc_dma_seg {
             long len;
 };
 
-typedef u_char ahc_type;
-#define	AHC_NONE	0x00
-#define	AHC_WIDE	0x02	/* Wide Channel */
-#define AHC_TWIN	0x08	/* Twin Channel */
-#define	AHC_274		0x10	/* EISA Based Controller */
-#define	AHC_284		0x20	/* VL/ISA Based Controller */
-#define	AHC_AIC7870	0x40	/* PCI Based Controller */
-#define	AHC_294		0xc0	/* PCI Based Controller */
+typedef enum {
+	AHC_NONE	= 0x000,
+	AHC_WIDE  	= 0x002,	/* Wide Channel */
+	AHC_TWIN	= 0x008,	/* Twin Channel */
+	AHC_AIC7770	= 0x010,
+	AHC_AIC7850	= 0x020,
+	AHC_AIC7870	= 0x040,
+	AHC_AIC78X0	= 0x060,	/* PCI Based Controller */
+	AHC_274		= 0x110,	/* EISA Based Controller */
+	AHC_284		= 0x210,	/* VL/ISA Based Controller */
+	AHC_294		= 0x440		/* PCI Based Controller */
+}ahc_type;
 
 /*
  * The driver keeps up to MAX_SCB scb structures per card in memory.  Only the