sc_link.adapter_buswidth, set to 16 if wide scsi. if 0 it gets converted

to 8 internally so that drivers do not need to init it for regular scsi :-)

2 files changed, 27 insertions, 6 deletions

diff --git a/sys/scsi/scsiconf.c b/sys/scsi/scsiconf.c
index 1a50875ccc7..d308fd0ec53 100644
--- a/sys/scsi/scsiconf.c
+++ b/sys/scsi/scsiconf.c
@@ -1,4 +1,4 @@
-/*	$OpenBSD: scsiconf.c,v 1.19 1996/11/28 13:20:37 niklas Exp $	*/
+/*	$OpenBSD: scsiconf.c,v 1.20 1997/01/15 05:50:27 deraadt Exp $	*/
 /*	$NetBSD: scsiconf.c,v 1.57 1996/05/02 01:09:01 neil Exp $	*/
 
 /*
@@ -122,10 +122,28 @@ scsibusattach(parent, self, aux)
 {
 	struct scsibus_softc *sb = (struct scsibus_softc *)self;
 	struct scsi_link *sc_link_proto = aux;
+	int nbytes, i;
 
 	sc_link_proto->scsibus = sb->sc_dev.dv_unit;
 	sb->adapter_link = sc_link_proto;
-	printf("\n");
+	if (sb->adapter_link->adapter_buswidth == 0)
+		sb->adapter_link->adapter_buswidth = 8;
+	sb->sc_buswidth = sb->adapter_link->adapter_buswidth;
+
+	printf(": %d targets\n", sb->sc_buswidth);
+
+	nbytes = sb->sc_buswidth * sizeof(struct scsi_link **);
+	sb->sc_link = (struct scsi_link ***)malloc(nbytes, M_DEVBUF, M_NOWAIT);
+	if (sb->sc_link == NULL)
+		panic("scsibusattach: can't allocate target links");
+	nbytes = 8 * sizeof(struct scsi_link *);
+	for (i = 0; i <= sb->sc_buswidth; i++) {
+		sb->sc_link[i] = (struct scsi_link **)malloc(nbytes,
+		    M_DEVBUF, M_NOWAIT);
+		if (sb->sc_link[i] == NULL)
+			panic("scsibusattach: can't allocate lun links");
+		bzero(sb->sc_link[i], nbytes);
+	}
 
 #if defined(SCSI_DELAY) && SCSI_DELAY > 2
 	printf("%s: waiting for scsi devices to settle\n",
@@ -196,10 +214,11 @@ scsi_probe_bus(bus, target, lun)
 	scsi_addr = scsi->adapter_link->adapter_target;
 
 	if (target == -1) {
-		maxtarget = 7;
+		maxtarget = scsi->adapter_link->adapter_buswidth - 1;
 		mintarget = 0;
 	} else {
-		if (target < 0 || target > 7)
+		if (target < 0 ||
+		    target >= scsi->adapter_link->adapter_buswidth)
 			return EINVAL;
 		maxtarget = mintarget = target;
 	}
diff --git a/sys/scsi/scsiconf.h b/sys/scsi/scsiconf.h
index e6e6a01042a..4e00d0b5383 100644
--- a/sys/scsi/scsiconf.h
+++ b/sys/scsi/scsiconf.h
@@ -1,4 +1,4 @@
-/*	$OpenBSD: scsiconf.h,v 1.8 1996/10/31 01:09:25 niklas Exp $	*/
+/*	$OpenBSD: scsiconf.h,v 1.9 1997/01/15 05:50:29 deraadt Exp $	*/
 /*	$NetBSD: scsiconf.h,v 1.29 1996/03/19 03:07:50 mycroft Exp $	*/
 
 /*
@@ -139,6 +139,7 @@ struct scsi_link {
 	u_int8_t target;		/* targ of this dev */
 	u_int8_t lun;			/* lun of this dev */
 	u_int8_t adapter_target;	/* what are we on the scsi bus */
+	u_int8_t adapter_buswidth;	/* 8 (regular) or 16 (wide). (0 becomes 8) */
 	u_int8_t openings;		/* available operations */
 	u_int8_t active;		/* operations in progress */
 	u_int16_t flags;		/* flags that all devices have */
@@ -184,8 +185,9 @@ struct scsi_inquiry_pattern {
 struct scsibus_softc {
 	struct device sc_dev;
 	struct scsi_link *adapter_link;		/* prototype supplied by adapter */
-	struct scsi_link *sc_link[8][8];
+	struct scsi_link ***sc_link;
 	u_int8_t moreluns;
+	u_int8_t sc_buswidth;
 };
 
 /*