1 files changed, 0 insertions, 622 deletions

diff --git a/sys/arch/sparc/dev/isp_sbus.c b/sys/arch/sparc/dev/isp_sbus.c
deleted file mode 100644
index e8aca5c8f41..00000000000
--- a/sys/arch/sparc/dev/isp_sbus.c
+++ /dev/null
@@ -1,622 +0,0 @@
-/*	$OpenBSD: isp_sbus.c,v 1.33 2014/07/08 17:42:50 miod Exp $	*/
-/*
- * SBus specific probe and attach routines for Qlogic ISP SCSI adapters.
- *
- * Copyright (c) 1997, 2000 by Matthew Jacob
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice immediately at the beginning of the file, without modification,
- *    this list of conditions, and the following disclaimer.
- *    documentation and/or other materials provided with the distribution.
- * 2. The name of the author may not be used to endorse or promote products
- *    derived from this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
- * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- *
- */
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/device.h>
-#include <sys/kernel.h>
-#include <sys/malloc.h>
-#include <sys/queue.h>
-
-#include <machine/autoconf.h>
-#include <machine/cpu.h>
-#include <machine/param.h>
-#include <machine/vmparam.h>
-#include <sparc/sparc/cpuvar.h>
-
-#include <uvm/uvm_extern.h>
-
-#include <dev/ic/isp_openbsd.h>
-
-#ifndef ISP_NOFIRMWARE
-#define ISP_FIRMWARE_1000
-#define ISP_FIRMWARE_2200
-#endif
-
-#if	defined(ISP_FIRMWARE_1000)
-#include <dev/microcode/isp/asm_sbus.h>
-#else
-#define	ISP_1000_RISC_CODE	NULL
-#endif
-
-#if	defined(ISP_FIRMWARE_2200)
-extern const u_int16_t isp_2200_risc_code[];
-#define	ISP_2200_RISC_CODE	(u_int16_t *) isp_2200_risc_code
-#else
-#define	ISP_2200_RISC_CODE	NULL
-#endif
-
-#define ISP_SBUSIFY_ISPHDR(isp, hdrp)					\
-	ISP_SWAP8((hdrp)->rqs_entry_count, (hdrp)->rqs_entry_type);	\
-	ISP_SWAP8((hdrp)->rqs_flags, (hdrp)->rqs_seqno);
-
-#define	ISP_SWIZZLE_REQUEST(a, b)				\
-	ISP_SBUSIFY_ISPHDR(a, &(b)->req_header);		\
-        ISP_SWAP8((b)->req_target, (b)->req_lun_trn)
-
-
-static int
-isp_sbus_rd_isr(struct ispsoftc *, u_int32_t *, u_int16_t *, u_int16_t *);
-static int
-isp_sbus_rd_isr_2200(struct ispsoftc *, u_int32_t *, u_int16_t *, u_int16_t *);
-static u_int32_t isp_sbus_rd_reg(struct ispsoftc *, int);
-static void isp_sbus_wr_reg(struct ispsoftc *, int, u_int32_t);
-static u_int32_t isp_sbus_rd_reg_2200(struct ispsoftc *, int);
-static void isp_sbus_wr_reg_2200(struct ispsoftc *, int, u_int32_t);
-static int isp_sbus_mbxdma(struct ispsoftc *);
-static int isp_sbus_dmasetup(struct ispsoftc *, struct scsi_xfer *,
-	ispreq_t *, u_int32_t *, u_int32_t);
-static void
-isp_sbus_dmateardown(struct ispsoftc *, struct scsi_xfer *, u_int32_t);
-static int isp_sbus_intr(void *);
-
-static struct ispmdvec mdvec = {
-	isp_sbus_rd_isr,
-	isp_sbus_rd_reg,
-	isp_sbus_wr_reg,
-	isp_sbus_mbxdma,
-	isp_sbus_dmasetup,
-	isp_sbus_dmateardown,
-	NULL,
-	NULL,
-	NULL,
-	ISP_1000_RISC_CODE,
-	BIU_BURST_ENABLE|BIU_SBUS_CONF1_FIFO_32
-};
-
-static struct ispmdvec mdvec_2200 = {
-	isp_sbus_rd_isr_2200,
-	isp_sbus_rd_reg_2200,
-	isp_sbus_wr_reg_2200,
-	isp_sbus_mbxdma,
-	isp_sbus_dmasetup,
-	isp_sbus_dmateardown,
-	NULL,
-	NULL,
-	NULL,
-	ISP_2200_RISC_CODE
-};
-
-struct isp_sbussoftc {
-	struct ispsoftc	sbus_isp;
-	sdparam		sbus_dev;
-	struct intrhand sbus_ih;
-	volatile u_int16_t *sbus_reg;
-	int		sbus_node;
-	int		sbus_pri;
-	struct ispmdvec	sbus_mdvec;
-	int16_t		sbus_poff[_NREG_BLKS];
-	vaddr_t	 	*sbus_kdma_allocs;
-};
-
-
-static int isp_match(struct device *, void *, void *);
-static void isp_sbus_attach(struct device *, struct device *, void *);
-struct cfattach isp_sbus_ca = {
-	sizeof (struct isp_sbussoftc), isp_match, isp_sbus_attach
-};
-
-static int
-isp_match(struct device *parent, void *cfarg, void *aux)
-{
-	int rv;
-	struct cfdata *cf = cfarg;
-#ifdef DEBUG
-	static int oneshot = 1;
-#endif
-	struct confargs *ca = aux;
-	struct romaux *ra = &ca->ca_ra;
-
-	rv = (strcmp(cf->cf_driver->cd_name, ra->ra_name) == 0 ||
-		strcmp("PTI,ptisp", ra->ra_name) == 0 ||
-		strcmp("ptisp", ra->ra_name) == 0 ||
-		strcmp("SUNW,isp", ra->ra_name) == 0 ||
-		strcmp("SUNW,qlc", ra->ra_name) == 0 ||
-		strcmp("QLGC,isp", ra->ra_name) == 0 ||
-		strcmp("QLGC,qla", ra->ra_name) == 0);
-	if (rv == 0)
-		return (rv);
-#ifdef DEBUG
-	if (rv && oneshot) {
-		oneshot = 0;
-		printf("Qlogic ISP Driver, OpenBSD (sbus) Platform Version "
-		    "%d.%d Core Version %d.%d\n",
-		    ISP_PLATFORM_VERSION_MAJOR, ISP_PLATFORM_VERSION_MINOR,
-		    ISP_CORE_VERSION_MAJOR, ISP_CORE_VERSION_MINOR);
-	}
-#endif
-	if (ca->ca_bustype == BUS_SBUS)
-		return (1);
-	ra->ra_len = NBPG;
-	return (probeget(ra->ra_vaddr, 1) != -1);
-}
-
-static void
-isp_sbus_attach(struct device *parent, struct device *self, void *aux)
-{
-	int freq, storebp = 0;
-	struct confargs *ca = aux;
-	struct bootpath *bp;
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) self;
-	struct ispsoftc *isp = &sbc->sbus_isp;
-	volatile u_int16_t *fpga_reg;
-
-	if (ca->ca_ra.ra_nintr != 1) {
-		printf(": expected 1 interrupt, got %d\n", ca->ca_ra.ra_nintr);
-		return;
-	}
-
-	printf("\n");
-
-	sbc->sbus_pri = ca->ca_ra.ra_intr[0].int_pri;
-	sbc->sbus_mdvec = mdvec;
-
-	if (ca->ca_ra.ra_vaddr) {
-		sbc->sbus_reg = (volatile u_int16_t *) ca->ca_ra.ra_vaddr;
-	} else {
-		sbc->sbus_reg = (volatile u_int16_t *)
-			mapiodev(ca->ca_ra.ra_reg, 0, ca->ca_ra.ra_len);
-	}
-	sbc->sbus_node = ca->ca_ra.ra_node;
-
-	freq = getpropint(ca->ca_ra.ra_node, "clock-frequency", 0);
-	if (freq) {
-		/*
-		 * Convert from HZ to MHz, rounding up.
-		 */
-		freq = (freq + 500000)/1000000;
-#if	0
-		printf("%s: %d MHz\n", self->dv_xname, freq);
-#endif
-	}
-	sbc->sbus_mdvec.dv_clock = freq;
-
-	DEFAULT_IID(isp) =
-	    getpropint(ca->ca_ra.ra_node, "scsi-initiator-id", 7);
-
-	if ((bp = ca->ca_ra.ra_bp) != NULL) {
-		if (bp->val[0] == ca->ca_slot &&
-		    bp->val[1] == ca->ca_offset) {
-			if (strcmp("isp", bp->name) == 0 ||
-			    strcmp("QLGC,isp", bp->name) == 0 ||
-			    strcmp("PTI,isp", bp->name) == 0 ||
-			    strcmp("ptisp", bp->name) == 0) {
-				storebp = 1;
-			}
-		}
-	}
-
-	/*
-	 * XXX: Now figure out what the proper burst sizes, etc., to use.
-	 */
-	sbc->sbus_mdvec.dv_conf1 |= BIU_SBUS_CONF1_FIFO_8;
-
-	/*
-	 * Some early versions of the PTI SBus adapter
-	 * would fail in trying to download (via poking)
-	 * FW. We give up on them.
-	 */
-	if (strcmp("PTI,ptisp", ca->ca_ra.ra_name) == 0 ||
-	    strcmp("ptisp", ca->ca_ra.ra_name) == 0) {
-		sbc->sbus_mdvec.dv_ispfw = NULL;
-	}
-
-	isp->isp_mdvec = &sbc->sbus_mdvec;
-	isp->isp_bustype = ISP_BT_SBUS;
-	isp->isp_type = ISP_HA_SCSI_UNKNOWN;
-	isp->isp_param = &sbc->sbus_dev;
-	bzero(isp->isp_param, sizeof (sdparam));
-
-	sbc->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] = BIU_REGS_OFF;
-	sbc->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] = SBUS_MBOX_REGS_OFF;
-	sbc->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] = SBUS_SXP_REGS_OFF;
-	sbc->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] = SBUS_RISC_REGS_OFF;
-	sbc->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] = DMA_REGS_OFF;
-
-	if (strcmp("SUNW,qlc", ca->ca_ra.ra_name) == 0 ||
-	    strcmp("QLGC,qla", ca->ca_ra.ra_name) == 0) {
-		isp->isp_mdvec = &mdvec_2200;
-		isp->isp_bustype = ISP_BT_PCI;
-		isp->isp_type = ISP_HA_FC_2200;
-		isp->isp_param = malloc(sizeof(fcparam), M_DEVBUF,
-		    M_NOWAIT | M_ZERO);
-		if (isp->isp_param == NULL) {
-			printf("%s: no mem for sdparam table\n",
-			    self->dv_xname);
-			return;
-		}
-		sbc->sbus_poff[BIU_BLOCK >> _BLK_REG_SHFT] =
-		    0x100 + BIU_REGS_OFF;
-		sbc->sbus_poff[MBOX_BLOCK >> _BLK_REG_SHFT] =
-		    0x100 + PCI_MBOX_REGS2100_OFF;
-		sbc->sbus_poff[SXP_BLOCK >> _BLK_REG_SHFT] =
-		    0x100 + PCI_SXP_REGS_OFF;
-		sbc->sbus_poff[RISC_BLOCK >> _BLK_REG_SHFT] =
-		    0x100 + PCI_RISC_REGS_OFF;
-		sbc->sbus_poff[DMA_BLOCK >> _BLK_REG_SHFT] =
-		    0x100 + DMA_REGS_OFF;
-
-		fpga_reg = mapiodev(&ca->ca_ra.ra_reg[1], 0,
-		    ca->ca_ra.ra_reg[1].rr_len);
-		fpga_reg[0x80] &= ~htole16(0x700);
-		fpga_reg[0x80] |= htole16(0x300);
-	}
-
-	/* Establish interrupt channel */
-	sbc->sbus_ih.ih_fun = (void *) isp_sbus_intr;
-	sbc->sbus_ih.ih_arg = sbc;
-	intr_establish(sbc->sbus_pri, &sbc->sbus_ih, IPL_BIO, self->dv_xname);
-
-	/*
-	 * Set up logging levels.
-	 */
-#ifdef	ISP_LOGDEFAULT
-	isp->isp_dblev = ISP_LOGDEFAULT;
-#else
-	isp->isp_dblev = ISP_LOGWARN|ISP_LOGERR;
-#if 0
-	isp->isp_dblev |= ISP_LOGDEBUG1|ISP_LOGDEBUG2;
-#endif
-#ifdef	DEBUG
-	isp->isp_dblev |= ISP_LOGDEBUG0|ISP_LOGCONFIG|ISP_LOGINFO;
-#endif
-#endif
-	isp->isp_confopts = self->dv_cfdata->cf_flags;
-	isp->isp_role = ISP_DEFAULT_ROLES;
-
-	ISP_LOCK(isp);
-	isp->isp_osinfo.no_mbox_ints = 1;
-	isp_reset(isp);
-	if (isp->isp_state != ISP_RESETSTATE) {
-		ISP_UNLOCK(isp);
-		return;
-	}
-	ISP_ENABLE_INTS(isp);
-	isp_init(isp);
-	if (isp->isp_state != ISP_INITSTATE) {
-		isp_uninit(isp);
-		ISP_UNLOCK(isp);
-		return;
-	}
-
-	/*
-	 * do generic attach.
-	 */
-	if (storebp) {
-		/*
-		 * We're the booting HBA.
-		 *
-		 * Override the bootpath name with our driver name
-		 * so we will do the correct matching and and store
-		 * the next component's boot path entry, also so a
-		 * successful match will occur.
-		 */
-		bcopy("isp", bp->name, 4);
-		bp++;
-		bootpath_store(1, bp);
-	}
-	isp_attach(isp);
-	if (isp->isp_state != ISP_RUNSTATE) {
-		isp_uninit(isp);
-	}
-	if (storebp) {
-		bootpath_store(1, NULL);
-	}
-	ISP_UNLOCK(isp);
-}
-
-#define	IspVirt2Off(a, x)	\
-	(((struct isp_sbussoftc *)a)->sbus_poff[((x) & _BLK_REG_MASK) >> \
-	_BLK_REG_SHFT] + ((x) & 0xff))
-
-#define	BXR2(pcs, off)		(sbc->sbus_reg[off >> 1])
-
-static int
-isp_sbus_rd_isr(struct ispsoftc *isp, u_int32_t *isrp,
-    u_int16_t *semap, u_int16_t *mbp)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	volatile u_int16_t isr, sema;
-
-	isr = BXR2(pcs, IspVirt2Off(isp, BIU_ISR));
-	sema = BXR2(pcs, IspVirt2Off(isp, BIU_SEMA));
-	isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
-	isr &= INT_PENDING_MASK(isp);
-	sema &= BIU_SEMA_LOCK;
-	if (isr == 0 && sema == 0) {
-		return (0);
-	}
-	*isrp = isr;
-	if ((*semap = sema) != 0) {
-		*mbp = BXR2(pcs, IspVirt2Off(isp, OUTMAILBOX0));
-	}
-	return (1);
-}
-
-static int
-isp_sbus_rd_isr_2200(struct ispsoftc *isp, u_int32_t *isrp,
-    u_int16_t *semap, u_int16_t *mbp)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	volatile u_int16_t isr, sema;
-
-	isr = letoh16(BXR2(pcs, IspVirt2Off(isp, BIU_ISR)));
-	sema = letoh16(BXR2(pcs, IspVirt2Off(isp, BIU_SEMA)));
-	isp_prt(isp, ISP_LOGDEBUG3, "ISR 0x%x SEMA 0x%x", isr, sema);
-	isr &= INT_PENDING_MASK(isp);
-	sema &= BIU_SEMA_LOCK;
-	if (isr == 0 && sema == 0) {
-		return (0);
-	}
-	*isrp = isr;
-	if ((*semap = sema) != 0) {
-		*mbp = letoh16(BXR2(pcs, IspVirt2Off(isp, OUTMAILBOX0)));
-	}
-	return (1);
-}
-
-static u_int32_t
-isp_sbus_rd_reg(struct ispsoftc *isp, int regoff)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
-	offset += (regoff & 0xff);
-	return ((u_int16_t) sbc->sbus_reg[offset >> 1]);
-}
-
-static void
-isp_sbus_wr_reg(struct ispsoftc *isp, int regoff, u_int32_t val)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
-	offset += (regoff & 0xff);
-	sbc->sbus_reg[offset >> 1] = val;
-}
-
-static u_int32_t
-isp_sbus_rd_reg_2200(struct ispsoftc *isp, int regoff)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
-	offset += (regoff & 0xff);
-	return ((u_int16_t) letoh16(sbc->sbus_reg[offset >> 1]));
-}
-
-static void
-isp_sbus_wr_reg_2200(struct ispsoftc *isp, int regoff, u_int32_t val)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	int offset = sbc->sbus_poff[(regoff & _BLK_REG_MASK) >> _BLK_REG_SHFT];
-	offset += (regoff & 0xff);
-	sbc->sbus_reg[offset >> 1] = htole16(val);
-}
-
-static int
-isp_sbus_mbxdma(struct ispsoftc *isp)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	size_t len;
-
-	if (isp->isp_rquest_dma)	/* been here before? */
-		return (0);
-
-	/*
-	 * NOTE: Since most Sun machines aren't I/O coherent,
-	 * map the mailboxes through kdvma space to force them
-	 * to be uncached.
-	 */
-
-	len = isp->isp_maxcmds * sizeof (XS_T);
-	isp->isp_xflist = (XS_T **) malloc(len, M_DEVBUF, M_WAITOK | M_ZERO);
-	len = isp->isp_maxcmds * sizeof (vaddr_t);
-	sbc->sbus_kdma_allocs = (vaddr_t *) malloc(len, M_DEVBUF,
-	    M_WAITOK | M_ZERO);
-
-	/*
-	 * Allocate and map the request queue.
-	 */
-	len = ISP_QUEUE_SIZE(RQUEST_QUEUE_LEN(isp));
-	isp->isp_rquest = (volatile caddr_t)malloc(len, M_DEVBUF, M_NOWAIT);
-	if (isp->isp_rquest == 0) {
-		printf("%s: cannot allocate request queue\n", isp->isp_name);
-		return (1);
-	}
-	isp->isp_rquest_dma = (u_int32_t)
-	    kdvma_mapin((caddr_t)isp->isp_rquest, len, 0);
-	if (isp->isp_rquest_dma == 0) {
-		printf("%s: can't mapin request queue\n", isp->isp_name);
-		return (1);
-	}
-
-	/*
-	 * Allocate and map the result queue.
-	 */
-	len = ISP_QUEUE_SIZE(RESULT_QUEUE_LEN(isp));
-	isp->isp_result = (volatile caddr_t)malloc(len, M_DEVBUF, M_NOWAIT);
-	if (isp->isp_result == 0) {
-		printf("%s: cannot allocate result queue\n", isp->isp_name);
-		return (1);
-	}
-	isp->isp_result_dma = (u_int32_t)
-	    kdvma_mapin((caddr_t)isp->isp_result, len, 0);
-	if (isp->isp_result_dma == 0) {
-		printf("%s: can't mapin result queue\n", isp->isp_name);
-		return (1);
-	}
-
-	if (IS_FC(isp)) {
-		/*
-		 * Allocate and map the FC scratch area.
-		 */
-		len = ISP2100_SCRLEN;
-		FCPARAM(isp)->isp_scratch = malloc(len, M_DEVBUF, M_NOWAIT);
-		if (FCPARAM(isp)->isp_scratch == 0) {
-			printf("%s: cannot allocate FC scratch area\n",
-			    isp->isp_name);
-			return (1);
-		}
-		FCPARAM(isp)->isp_scdma = (u_int32_t)
-		    kdvma_mapin((caddr_t)FCPARAM(isp)->isp_scratch, len, 0);
-		if (FCPARAM(isp)->isp_scdma == 0) {
-			printf("%s: can't mapin FC scratch area\n",
-			    isp->isp_name);
-			return (1);
-		}
-	}
-
-	return (0);
-}
-
-/*
- * TODO: If kdvma_mapin fails, try using multiple smaller chunks..
- */
-
-static int
-isp_sbus_dmasetup(struct ispsoftc *isp, struct scsi_xfer *xs, ispreq_t *rq,
-    u_int32_t *iptrp, u_int32_t optr)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	ispreq_t *qe;
-	ispcontreq_t *crq;
-	vaddr_t kdvma;
-	int dosleep = (xs->flags & SCSI_NOSLEEP) != 0;
-
-	qe = (ispreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, isp->isp_reqidx);
-	if (xs->datalen == 0) {
-		rq->req_seg_count = 1;
-		goto mbxsync;
-	}
-	if (CPU_ISSUN4M) {
-		kdvma = (vaddr_t)
-			kdvma_mapin((caddr_t)xs->data, xs->datalen, dosleep);
-		if (kdvma == (vaddr_t) 0) {
-			XS_SETERR(xs, HBA_BOTCH);
-			return (CMD_COMPLETE);
-		}
-	} else {
-		kdvma = (vaddr_t) xs->data;
-	}
-
-	if (sbc->sbus_kdma_allocs[isp_handle_index(rq->req_handle)] != 0) {
-		panic("%s: kdma handle already allocated", isp->isp_name);
-		/* NOTREACHED */
-	}
-	if (XS_CDBLEN(xs) > 12) {
-		crq = (ispcontreq_t *) ISP_QUEUE_ENTRY(isp->isp_rquest, *iptrp);
-		*iptrp = ISP_NXT_QENTRY(*iptrp, RQUEST_QUEUE_LEN(isp));
-		if (*iptrp == optr) {
-			printf("%s: Request Queue Overflow++\n", isp->isp_name);
-			if (CPU_ISSUN4M) {
-				dvma_mapout(kdvma,
-				    (vaddr_t) xs->data, xs->datalen);
-			}
-			XS_SETERR(xs, HBA_BOTCH);
-			return (CMD_EAGAIN);
-		}
-	} else {
-		crq = NULL;
-	}
-	sbc->sbus_kdma_allocs[isp_handle_index(rq->req_handle)] = kdvma;
-	if (xs->flags & SCSI_DATA_IN) {
-		rq->req_flags |= REQFLAG_DATA_IN;
-	} else {
-		rq->req_flags |= REQFLAG_DATA_OUT;
-	}
-	if (crq) {
-		rq->req_seg_count = 2;
-		rq->req_dataseg[0].ds_count = 0;
-		rq->req_dataseg[0].ds_base =  0;
-		bzero((void *)crq, sizeof (*crq));
-		crq->req_header.rqs_entry_count = 1;
-		crq->req_header.rqs_entry_type = RQSTYPE_DATASEG;  
-		crq->req_dataseg[0].ds_count = xs->datalen;
-		crq->req_dataseg[0].ds_base =  (u_int32_t) kdvma;
-                ISP_SBUSIFY_ISPHDR(isp, &crq->req_header)
-	} else {
-		rq->req_dataseg[0].ds_count = xs->datalen;
-		rq->req_dataseg[0].ds_base =  (u_int32_t) kdvma;
-		rq->req_seg_count = 1;
-	}
-
-mbxsync:
-	ISP_SWIZZLE_REQUEST(isp, rq);
-	bcopy(rq, qe, sizeof (ispreq_t));
-	return (CMD_QUEUED);
-}
-
-static void
-isp_sbus_dmateardown(struct ispsoftc *isp, XS_T *xs, u_int32_t handle)
-{
-	struct isp_sbussoftc *sbc = (struct isp_sbussoftc *) isp;
-	vaddr_t kdvma;
-
-	if (xs->flags & SCSI_DATA_IN) {
-		cpuinfo.cache_flush(xs->data, xs->datalen - xs->resid);
-	}
-	if (sbc->sbus_kdma_allocs[isp_handle_index(handle)] == (vaddr_t) 0) {
-		panic("%s: kdma handle not already allocated", isp->isp_name);
-		/* NOTREACHED */
-	}
-	kdvma = sbc->sbus_kdma_allocs[isp_handle_index(handle)];
-	sbc->sbus_kdma_allocs[isp_handle_index(handle)] = (vaddr_t) 0;
-	if (CPU_ISSUN4M) {
-		dvma_mapout(kdvma, (vaddr_t) xs->data, xs->datalen);
-	}
-}
-
-static int
-isp_sbus_intr(void *arg)
-{
-	u_int32_t isr;
-	u_int16_t sema, mbox;
-	struct ispsoftc *isp = (struct ispsoftc *)arg;
-
-	isp->isp_intcnt++;
-	if (ISP_READ_ISR(isp, &isr, &sema, &mbox) == 0) {
-		isp->isp_intbogus++;
-		return (0);
-	} else {
-		isp->isp_osinfo.onintstack = 1;
-		isp_intr(isp, isr, sema, mbox);
-		isp->isp_osinfo.onintstack = 0;
-		return (1);
-	}
-}