Adaption to new bus.h from NetBSD. Various driver has been updated to

NetBSD 961107 state.  Other has not, partly because sometimes the bus.h
changes was coupled with other changes.

1 files changed, 558 insertions, 0 deletions

diff --git a/sys/dev/ic/uha.c b/sys/dev/ic/uha.c
new file mode 100644
index 00000000000..5d15be79975
--- /dev/null
+++ b/sys/dev/ic/uha.c
@@ -0,0 +1,558 @@
+/*	$OpenBSD: uha.c,v 1.1 1996/11/28 23:27:54 niklas Exp $	*/
+/*	$NetBSD: uha.c,v 1.3 1996/10/13 01:37:29 christos Exp $	*/
+
+#undef UHADEBUG
+#ifdef DDB
+#define	integrate
+#else
+#define	integrate	static inline
+#endif
+
+/*
+ * Copyright (c) 1994, 1996 Charles M. Hannum.  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, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. All advertising materials mentioning features or use of this software
+ *    must display the following acknowledgement:
+ *	This product includes software developed by Charles M. Hannum.
+ * 4. 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 ``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 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.
+ */
+
+/*
+ * Ported for use with the UltraStor 14f by Gary Close (gclose@wvnvms.wvnet.edu)
+ * Slight fixes to timeouts to run with the 34F
+ * Thanks to Julian Elischer for advice and help with this port.
+ *
+ * Originally written by Julian Elischer (julian@tfs.com)
+ * for TRW Financial Systems for use under the MACH(2.5) operating system.
+ *
+ * TRW Financial Systems, in accordance with their agreement with Carnegie
+ * Mellon University, makes this software available to CMU to distribute
+ * or use in any manner that they see fit as long as this message is kept with
+ * the software. For this reason TFS also grants any other persons or
+ * organisations permission to use or modify this software.
+ *
+ * TFS supplies this software to be publicly redistributed
+ * on the understanding that TFS is not responsible for the correct
+ * functioning of this software in any circumstances.
+ *
+ * commenced: Sun Sep 27 18:14:01 PDT 1992
+ * slight mod to make work with 34F as well: Wed Jun  2 18:05:48 WST 1993
+ */
+
+#include <sys/types.h>
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/kernel.h>
+#include <sys/errno.h>
+#include <sys/ioctl.h>
+#include <sys/device.h>
+#include <sys/malloc.h>
+#include <sys/buf.h>
+#include <sys/proc.h>
+#include <sys/user.h>
+
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <scsi/scsi_all.h>
+#include <scsi/scsiconf.h>
+
+#include <dev/ic/uhareg.h>
+#include <dev/ic/uhavar.h>
+
+#ifndef	DDB
+#define Debugger() panic("should call debugger here (ultra14f.c)")
+#endif /* ! DDB */
+
+#define KVTOPHYS(x)	vtophys(x)
+
+void uha_reset_mscp __P((struct uha_softc *, struct uha_mscp *));
+void uha_free_mscp __P((struct uha_softc *, struct uha_mscp *));
+void uha_init_mscp __P((struct uha_softc *, struct uha_mscp *));
+struct uha_mscp *uha_get_mscp __P((struct uha_softc *, int));
+void uhaminphys __P((struct buf *));
+int uha_scsi_cmd __P((struct scsi_xfer *));
+
+struct scsi_adapter uha_switch = {
+	uha_scsi_cmd,
+	uhaminphys,
+	0,
+	0,
+};
+
+/* the below structure is so we have a default dev struct for out link struct */
+struct scsi_device uha_dev = {
+	NULL,			/* Use default error handler */
+	NULL,			/* have a queue, served by this */
+	NULL,			/* have no async handler */
+	NULL,			/* Use default 'done' routine */
+};
+
+struct cfdriver uha_cd = {
+	NULL, "uha", DV_DULL
+};
+
+#define	UHA_ABORT_TIMEOUT	2000	/* time to wait for abort (mSec) */
+
+#ifdef __OpenBSD__
+int	uhaprint __P((void *, const char *));
+
+int
+uhaprint(aux, name)
+	void *aux;
+	const char *name;
+{
+
+	if (name != NULL)
+		printf("%s: scsibus ", name);
+	return UNCONF;
+}
+#endif
+
+/*
+ * Attach all the sub-devices we can find
+ */
+void
+uha_attach(sc)
+	struct uha_softc *sc;
+{
+
+	(sc->init)(sc);
+	TAILQ_INIT(&sc->sc_free_mscp);
+
+	/*
+	 * fill in the prototype scsi_link.
+	 */
+#ifndef __OpenBSD__
+	sc->sc_link.channel = SCSI_CHANNEL_ONLY_ONE;
+#endif
+	sc->sc_link.adapter_softc = sc;
+	sc->sc_link.adapter_target = sc->sc_scsi_dev;
+	sc->sc_link.adapter = &uha_switch;
+	sc->sc_link.device = &uha_dev;
+	sc->sc_link.openings = 2;
+
+	/*
+	 * ask the adapter what subunits are present
+	 */
+#ifdef __OpenBSD__
+	config_found(&sc->sc_dev, &sc->sc_link, uhaprint);
+#else
+	config_found(&sc->sc_dev, &sc->sc_link, scsiprint);
+#endif
+}
+
+integrate void
+uha_reset_mscp(sc, mscp)
+	struct uha_softc *sc;
+	struct uha_mscp *mscp;
+{
+
+	mscp->flags = 0;
+}
+
+/*
+ * A mscp (and hence a mbx-out) is put onto the free list.
+ */
+void
+uha_free_mscp(sc, mscp)
+	struct uha_softc *sc;
+	struct uha_mscp *mscp;
+{
+	int s;
+
+	s = splbio();
+
+	uha_reset_mscp(sc, mscp);
+	TAILQ_INSERT_HEAD(&sc->sc_free_mscp, mscp, chain);
+
+	/*
+	 * If there were none, wake anybody waiting for one to come free,
+	 * starting with queued entries.
+	 */
+	if (mscp->chain.tqe_next == 0)
+		wakeup(&sc->sc_free_mscp);
+
+	splx(s);
+}
+
+integrate void
+uha_init_mscp(sc, mscp)
+	struct uha_softc *sc;
+	struct uha_mscp *mscp;
+{
+	int hashnum;
+
+	bzero(mscp, sizeof(struct uha_mscp));
+	/*
+	 * put in the phystokv hash table
+	 * Never gets taken out.
+	 */
+	mscp->hashkey = KVTOPHYS(mscp);
+	hashnum = MSCP_HASH(mscp->hashkey);
+	mscp->nexthash = sc->sc_mscphash[hashnum];
+	sc->sc_mscphash[hashnum] = mscp;
+	uha_reset_mscp(sc, mscp);
+}
+
+/*
+ * Get a free mscp
+ *
+ * If there are none, see if we can allocate a new one.  If so, put it in the
+ * hash table too otherwise either return an error or sleep.
+ */
+struct uha_mscp *
+uha_get_mscp(sc, flags)
+	struct uha_softc *sc;
+	int flags;
+{
+	struct uha_mscp *mscp;
+	int s;
+
+	s = splbio();
+
+	/*
+	 * If we can and have to, sleep waiting for one to come free
+	 * but only if we can't allocate a new one
+	 */
+	for (;;) {
+		mscp = sc->sc_free_mscp.tqh_first;
+		if (mscp) {
+			TAILQ_REMOVE(&sc->sc_free_mscp, mscp, chain);
+			break;
+		}
+		if (sc->sc_nummscps < UHA_MSCP_MAX) {
+			mscp = (struct uha_mscp *) malloc(sizeof(struct uha_mscp),
+			    M_TEMP, M_NOWAIT);
+			if (!mscp) {
+				printf("%s: can't malloc mscp\n",
+				    sc->sc_dev.dv_xname);
+				goto out;
+			}
+			uha_init_mscp(sc, mscp);
+			sc->sc_nummscps++;
+			break;
+		}
+		if ((flags & SCSI_NOSLEEP) != 0)
+			goto out;
+		tsleep(&sc->sc_free_mscp, PRIBIO, "uhamsc", 0);
+	}
+
+	mscp->flags |= MSCP_ALLOC;
+
+out:
+	splx(s);
+	return (mscp);
+}
+
+/*
+ * given a physical address, find the mscp that it corresponds to.
+ */
+struct uha_mscp *
+uha_mscp_phys_kv(sc, mscp_phys)
+	struct uha_softc *sc;
+	u_long mscp_phys;
+{
+	int hashnum = MSCP_HASH(mscp_phys);
+	struct uha_mscp *mscp = sc->sc_mscphash[hashnum];
+
+	while (mscp) {
+		if (mscp->hashkey == mscp_phys)
+			break;
+		mscp = mscp->nexthash;
+	}
+	return (mscp);
+}
+
+/*
+ * We have a mscp which has been processed by the adaptor, now we look to see
+ * how the operation went.
+ */
+void
+uha_done(sc, mscp)
+	struct uha_softc *sc;
+	struct uha_mscp *mscp;
+{
+	struct scsi_sense_data *s1, *s2;
+	struct scsi_xfer *xs = mscp->xs;
+
+	SC_DEBUG(xs->sc_link, SDEV_DB2, ("uha_done\n"));
+	/*
+	 * Otherwise, put the results of the operation
+	 * into the xfer and call whoever started it
+	 */
+	if ((mscp->flags & MSCP_ALLOC) == 0) {
+		printf("%s: exiting ccb not allocated!\n", sc->sc_dev.dv_xname);
+		Debugger();
+		return;
+	}
+	if (xs->error == XS_NOERROR) {
+		if (mscp->host_stat != UHA_NO_ERR) {
+			switch (mscp->host_stat) {
+			case UHA_SBUS_TIMEOUT:		/* No response */
+				xs->error = XS_SELTIMEOUT;
+				break;
+			default:	/* Other scsi protocol messes */
+				printf("%s: host_stat %x\n",
+				    sc->sc_dev.dv_xname, mscp->host_stat);
+				xs->error = XS_DRIVER_STUFFUP;
+			}
+		} else if (mscp->target_stat != SCSI_OK) {
+			switch (mscp->target_stat) {
+			case SCSI_CHECK:
+				s1 = &mscp->mscp_sense;
+				s2 = &xs->sense;
+				*s2 = *s1;
+				xs->error = XS_SENSE;
+				break;
+			case SCSI_BUSY:
+				xs->error = XS_BUSY;
+				break;
+			default:
+				printf("%s: target_stat %x\n",
+				    sc->sc_dev.dv_xname, mscp->target_stat);
+				xs->error = XS_DRIVER_STUFFUP;
+			}
+		} else
+			xs->resid = 0;
+	}
+	uha_free_mscp(sc, mscp);
+	xs->flags |= ITSDONE;
+	scsi_done(xs);
+}
+
+void
+uhaminphys(bp)
+	struct buf *bp;
+{
+
+	if (bp->b_bcount > ((UHA_NSEG - 1) << PGSHIFT))
+		bp->b_bcount = ((UHA_NSEG - 1) << PGSHIFT);
+	minphys(bp);
+}
+
+/*
+ * start a scsi operation given the command and the data address.  Also
+ * needs the unit, target and lu.
+ */
+int
+uha_scsi_cmd(xs)
+	struct scsi_xfer *xs;
+{
+	struct scsi_link *sc_link = xs->sc_link;
+	struct uha_softc *sc = sc_link->adapter_softc;
+	struct uha_mscp *mscp;
+	struct uha_dma_seg *sg;
+	int seg;		/* scatter gather seg being worked on */
+	u_long thiskv, thisphys, nextphys;
+	int bytes_this_seg, bytes_this_page, datalen, flags;
+	int s;
+
+	SC_DEBUG(sc_link, SDEV_DB2, ("uha_scsi_cmd\n"));
+	/*
+	 * get a mscp (mbox-out) to use. If the transfer
+	 * is from a buf (possibly from interrupt time)
+	 * then we can't allow it to sleep
+	 */
+	flags = xs->flags;
+	if ((mscp = uha_get_mscp(sc, flags)) == NULL) {
+		xs->error = XS_DRIVER_STUFFUP;
+		return (TRY_AGAIN_LATER);
+	}
+	mscp->xs = xs;
+	mscp->timeout = xs->timeout;
+
+	/*
+	 * Put all the arguments for the xfer in the mscp
+	 */
+	if (flags & SCSI_RESET) {
+		mscp->opcode = UHA_SDR;
+		mscp->ca = 0x01;
+	} else {
+		mscp->opcode = UHA_TSP;
+		/* XXX Not for tapes. */
+		mscp->ca = 0x01;
+		bcopy(xs->cmd, &mscp->scsi_cmd, mscp->scsi_cmd_length);
+	}
+	mscp->xdir = UHA_SDET;
+	mscp->dcn = 0x00;
+	mscp->chan = 0x00;
+	mscp->target = sc_link->target;
+	mscp->lun = sc_link->lun;
+	mscp->scsi_cmd_length = xs->cmdlen;
+	mscp->sense_ptr = KVTOPHYS(&mscp->mscp_sense);
+	mscp->req_sense_length = sizeof(mscp->mscp_sense);
+	mscp->host_stat = 0x00;
+	mscp->target_stat = 0x00;
+
+	if (xs->datalen) {
+		sg = mscp->uha_dma;
+		seg = 0;
+#ifdef	TFS
+		if (flags & SCSI_DATA_UIO) {
+			struct iovec *iovp;
+			iovp = ((struct uio *) xs->data)->uio_iov;
+			datalen = ((struct uio *) xs->data)->uio_iovcnt;
+			xs->datalen = 0;
+			while (datalen && seg < UHA_NSEG) {
+				sg->seg_addr = (physaddr)iovp->iov_base;
+				sg->seg_len = iovp->iov_len;
+				xs->datalen += iovp->iov_len;
+				SC_DEBUGN(sc_link, SDEV_DB4, ("(0x%x@0x%x)",
+				    iovp->iov_len, iovp->iov_base));
+				sg++;
+				iovp++;
+				seg++;
+				datalen--;
+			}
+		} else
+#endif /*TFS */
+		{
+			/*
+			 * Set up the scatter gather block
+			 */
+			SC_DEBUG(sc_link, SDEV_DB4,
+			    ("%d @0x%x:- ", xs->datalen, xs->data));
+			datalen = xs->datalen;
+			thiskv = (int) xs->data;
+			thisphys = KVTOPHYS(thiskv);
+
+			while (datalen && seg < UHA_NSEG) {
+				bytes_this_seg = 0;
+
+				/* put in the base address */
+				sg->seg_addr = thisphys;
+
+				SC_DEBUGN(sc_link, SDEV_DB4, ("0x%x", thisphys));
+
+				/* do it at least once */
+				nextphys = thisphys;
+				while (datalen && thisphys == nextphys) {
+					/*
+					 * This page is contiguous (physically)
+					 * with the the last, just extend the
+					 * length
+					 */
+					/* how far to the end of the page */
+					nextphys = (thisphys & ~PGOFSET) + NBPG;
+					bytes_this_page = nextphys - thisphys;
+					/**** or the data ****/
+					bytes_this_page = min(bytes_this_page,
+							      datalen);
+					bytes_this_seg += bytes_this_page;
+					datalen -= bytes_this_page;
+
+					/* get more ready for the next page */
+					thiskv = (thiskv & ~PGOFSET) + NBPG;
+					if (datalen)
+						thisphys = KVTOPHYS(thiskv);
+				}
+				/*
+				 * next page isn't contiguous, finish the seg
+				 */
+				SC_DEBUGN(sc_link, SDEV_DB4,
+				    ("(0x%x)", bytes_this_seg));
+				sg->seg_len = bytes_this_seg;
+				sg++;
+				seg++;
+			}
+		}
+		/* end of iov/kv decision */
+		SC_DEBUGN(sc_link, SDEV_DB4, ("\n"));
+		if (datalen) {
+			/*
+			 * there's still data, must have run out of segs!
+			 */
+			printf("%s: uha_scsi_cmd, more than %d dma segs\n",
+			    sc->sc_dev.dv_xname, UHA_NSEG);
+			goto bad;
+		}
+		mscp->data_addr = KVTOPHYS(mscp->uha_dma);
+		mscp->data_length = xs->datalen;
+		mscp->sgth = 0x01;
+		mscp->sg_num = seg;
+	} else {		/* No data xfer, use non S/G values */
+		mscp->data_addr = (physaddr)0;
+		mscp->data_length = 0;
+		mscp->sgth = 0x00;
+		mscp->sg_num = 0;
+	}
+	mscp->link_id = 0;
+	mscp->link_addr = (physaddr)0;
+
+	s = splbio();
+	(sc->start_mbox)(sc, mscp);
+	splx(s);
+
+	/*
+	 * Usually return SUCCESSFULLY QUEUED
+	 */
+	if ((flags & SCSI_POLL) == 0)
+		return (SUCCESSFULLY_QUEUED);
+
+	/*
+	 * If we can't use interrupts, poll on completion
+	 */
+	if ((sc->poll)(sc, xs, mscp->timeout)) {
+		uha_timeout(mscp);
+		if ((sc->poll)(sc, xs, mscp->timeout))
+			uha_timeout(mscp);
+	}
+	return (COMPLETE);
+
+bad:
+	xs->error = XS_DRIVER_STUFFUP;
+	uha_free_mscp(sc, mscp);
+	return (COMPLETE);
+}
+
+void
+uha_timeout(arg)
+	void *arg;
+{
+	struct uha_mscp *mscp = arg;
+	struct scsi_xfer *xs = mscp->xs;
+	struct scsi_link *sc_link = xs->sc_link;
+	struct uha_softc *sc = sc_link->adapter_softc;
+	int s;
+
+	sc_print_addr(sc_link);
+	printf("timed out");
+
+	s = splbio();
+
+	if (mscp->flags & MSCP_ABORT) {
+		/* abort timed out */
+		printf(" AGAIN\n");
+		/* XXX Must reset! */
+	} else {
+		/* abort the operation that has timed out */
+		printf("\n");
+		mscp->xs->error = XS_TIMEOUT;
+		mscp->timeout = UHA_ABORT_TIMEOUT;
+		mscp->flags |= MSCP_ABORT;
+		(sc->start_mbox)(sc, mscp);
+	}
+
+	splx(s);
+}