Allows the raw partition to be open()'ed, even when scsipi_start() fails
(no media or other ...) so that we can always send ioctl's to the device.
This commit is contained in:
bouyer
parent
be7c382051
commit
f52c71b0e8
@ -1,4 +1,4 @@
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/* $NetBSD: cd.c,v 1.118 1999/01/04 15:32:08 is Exp $ */
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/* $NetBSD: cd.c,v 1.119 1999/01/26 13:59:44 bouyer Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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@ -70,6 +70,7 @@
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#include <sys/disklabel.h>
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#include <sys/disk.h>
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#include <sys/cdio.h>
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#include <sys/scsiio.h>
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#include <sys/proc.h>
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#include <sys/conf.h>
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#if NRND > 0
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@ -234,6 +235,7 @@ cdopen(dev, flag, fmt, p)
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return (ENXIO);
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sc_link = cd->sc_link;
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part = CDPART(dev);
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SC_DEBUG(sc_link, SDEV_DB1,
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("cdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit,
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@ -250,7 +252,7 @@ cdopen(dev, flag, fmt, p)
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if ((error = cdlock(cd)) != 0)
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goto bad4;
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if (cd->sc_dk.dk_openmask != 0) {
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if ((sc_link->flags & SDEV_OPEN) != 0) {
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/*
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* If any partition is open, but the disk has been invalidated,
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* disallow further opens.
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@ -269,14 +271,22 @@ cdopen(dev, flag, fmt, p)
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if (error)
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goto bad3;
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/* Start the pack spinning if necessary. */
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/*
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* Start the pack spinning if necessary. Always allow the
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* raw parition to be opened, for raw IOCTLs. Data transfers
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* will check for SDEV_MEDIA_LOADED.
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*/
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error = scsipi_start(sc_link, SSS_START,
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SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_MEDIA_CHANGE |
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SCSI_SILENT);
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SC_DEBUG(sc_link, SDEV_DB1,
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("cdopen: scsipi_start, error=%d\n", error));
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if (error)
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goto bad3;
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if (error) {
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if (part != RAW_PART)
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goto bad3;
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else
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goto out;
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}
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sc_link->flags |= SDEV_OPEN;
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@ -304,8 +314,6 @@ cdopen(dev, flag, fmt, p)
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}
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}
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part = CDPART(dev);
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/* Check that the partition exists. */
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if (part != RAW_PART &&
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(part >= cd->sc_dk.dk_label->d_npartitions ||
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@ -314,7 +322,7 @@ cdopen(dev, flag, fmt, p)
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goto bad;
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}
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/* Insure only one open at a time. */
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out: /* Insure only one open at a time. */
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switch (fmt) {
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case S_IFCHR:
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cd->sc_dk.dk_copenmask |= (1 << part);
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@ -407,13 +415,6 @@ cdstrategy(bp)
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SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdstrategy "));
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SC_DEBUG(cd->sc_link, SDEV_DB1,
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("%ld bytes @ blk %d\n", bp->b_bcount, bp->b_blkno));
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/*
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* The transfer must be a whole number of blocks.
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*/
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if ((bp->b_bcount % cd->sc_dk.dk_label->d_secsize) != 0) {
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bp->b_error = EINVAL;
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goto bad;
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}
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/*
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* If the device has been made invalid, error out
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* maybe the media changed
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@ -422,6 +423,13 @@ cdstrategy(bp)
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bp->b_error = EIO;
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goto bad;
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}
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/*
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* The transfer must be a whole number of blocks.
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*/
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if ((bp->b_bcount % cd->sc_dk.dk_label->d_secsize) != 0) {
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bp->b_error = EINVAL;
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goto bad;
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}
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/*
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* If it's a null transfer, return immediately
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*/
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@ -702,10 +710,40 @@ cdioctl(dev, cmd, addr, flag, p)
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SC_DEBUG(cd->sc_link, SDEV_DB2, ("cdioctl 0x%lx ", cmd));
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/*
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* If the device is not valid.. abandon ship
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* If the device is not valid, some IOCTLs can still be
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* handled on the raw partition. Check this here.
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*/
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if ((cd->sc_link->flags & SDEV_MEDIA_LOADED) == 0)
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return (EIO);
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if ((cd->sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
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switch (cmd) {
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case DIOCWLABEL:
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case DIOCLOCK:
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case DIOCEJECT:
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case SCIOCIDENTIFY:
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case OSCIOCIDENTIFY:
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case SCIOCCOMMAND:
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case SCIOCDEBUG:
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case CDIOCGETVOL:
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case CDIOCSETVOL:
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case CDIOCSETMONO:
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case CDIOCSETSTEREO:
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case CDIOCSETMUTE:
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case CDIOCSETLEFT:
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case CDIOCSETRIGHT:
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case CDIOCCLOSE:
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case CDIOCALLOW:
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case CDIOCPREVENT:
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case CDIOCSETDEBUG:
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case CDIOCCLRDEBUG:
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case CDIOCRESET:
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case SCIOCRESET:
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case CDIOCLOADUNLOAD:
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if (CDPART(dev) == RAW_PART)
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break;
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/* FALLTHROUGH */
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default:
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return (EIO);
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}
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}
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switch (cmd) {
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case DIOCGDINFO:
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@ -938,6 +976,7 @@ cdioctl(dev, cmd, addr, flag, p)
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cd->sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2);
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return (0);
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case CDIOCRESET:
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case SCIOCRESET:
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return (cd_reset(cd));
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case CDIOCLOADUNLOAD: {
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struct ioc_load_unload *args = (struct ioc_load_unload *)addr;
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@ -1,4 +1,4 @@
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/* $NetBSD: sd.c,v 1.139 1999/01/19 10:57:11 bouyer Exp $ */
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/* $NetBSD: sd.c,v 1.140 1999/01/26 13:59:44 bouyer Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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@ -63,6 +63,7 @@
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#include <sys/file.h>
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#include <sys/stat.h>
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#include <sys/ioctl.h>
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#include <sys/scsiio.h>
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#include <sys/buf.h>
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#include <sys/uio.h>
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#include <sys/malloc.h>
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@ -273,10 +274,11 @@ sdopen(dev, flag, fmt, p)
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return (ENXIO);
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sc_link = sd->sc_link;
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part = SDPART(dev);
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SC_DEBUG(sc_link, SDEV_DB1,
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("sdopen: dev=0x%x (unit %d (of %d), partition %d)\n", dev, unit,
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sd_cd.cd_ndevs, SDPART(dev)));
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sd_cd.cd_ndevs, part));
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/*
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* If this is the first open of this device, add a reference
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@ -289,12 +291,13 @@ sdopen(dev, flag, fmt, p)
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if ((error = sdlock(sd)) != 0)
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goto bad4;
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if (sd->sc_dk.dk_openmask != 0) {
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if ((sc_link->flags & SDEV_OPEN) != 0) {
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/*
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* If any partition is open, but the disk has been invalidated,
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* disallow further opens.
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* disallow further opens of non-raw partition
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*/
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if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
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if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0 &&
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part != RAW_PART) {
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error = EIO;
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goto bad3;
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}
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@ -306,12 +309,20 @@ sdopen(dev, flag, fmt, p)
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if (error)
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goto bad3;
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/* Start the pack spinning if necessary. */
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/*
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* Start the pack spinning if necessary. Always allow the
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* raw parition to be opened, for raw IOCTLs. Data transfers
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* will check for SDEV_MEDIA_LOADED.
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*/
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error = scsipi_start(sc_link, SSS_START,
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SCSI_IGNORE_ILLEGAL_REQUEST |
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SCSI_IGNORE_MEDIA_CHANGE | SCSI_SILENT);
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if (error)
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goto bad3;
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if (error) {
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if (part != RAW_PART)
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goto bad3;
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else
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goto out;
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}
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sc_link->flags |= SDEV_OPEN;
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@ -345,8 +356,6 @@ sdopen(dev, flag, fmt, p)
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}
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}
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part = SDPART(dev);
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/* Check that the partition exists. */
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if (part != RAW_PART &&
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(part >= sd->sc_dk.dk_label->d_npartitions ||
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@ -355,7 +364,7 @@ sdopen(dev, flag, fmt, p)
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goto bad;
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}
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/* Insure only one open at a time. */
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out: /* Insure only one open at a time. */
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switch (fmt) {
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case S_IFCHR:
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sd->sc_dk.dk_copenmask |= (1 << part);
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@ -430,7 +439,7 @@ sdclose(dev, flag, fmt, p)
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scsipi_prevent(sd->sc_link, PR_ALLOW,
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SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY);
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sd->sc_link->flags &= ~(SDEV_OPEN|SDEV_MEDIA_LOADED);
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sd->sc_link->flags &= ~SDEV_OPEN;
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scsipi_wait_drain(sd->sc_link);
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@ -456,13 +465,6 @@ sdstrategy(bp)
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SC_DEBUG(sd->sc_link, SDEV_DB2, ("sdstrategy "));
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SC_DEBUG(sd->sc_link, SDEV_DB1,
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("%ld bytes @ blk %d\n", bp->b_bcount, bp->b_blkno));
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/*
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* The transfer must be a whole number of blocks.
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*/
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if ((bp->b_bcount % sd->sc_dk.dk_label->d_secsize) != 0) {
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bp->b_error = EINVAL;
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goto bad;
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}
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/*
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* If the device has been made invalid, error out
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*/
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@ -470,6 +472,13 @@ sdstrategy(bp)
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bp->b_error = EIO;
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goto bad;
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}
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/*
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* The transfer must be a whole number of blocks.
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*/
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if ((bp->b_bcount % sd->sc_dk.dk_label->d_secsize) != 0) {
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bp->b_error = EINVAL;
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goto bad;
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}
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/*
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* If it's a null transfer, return immediatly
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*/
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@ -737,10 +746,25 @@ sdioctl(dev, cmd, addr, flag, p)
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SC_DEBUG(sd->sc_link, SDEV_DB2, ("sdioctl 0x%lx ", cmd));
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/*
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* If the device is not valid.. abandon ship
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* If the device is not valid, some IOCTLs can still be
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* handled on the raw partition. Check this here.
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*/
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if ((sd->sc_link->flags & SDEV_MEDIA_LOADED) == 0)
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return (EIO);
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if ((sd->sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
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switch (cmd) {
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case DIOCWLABEL:
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case DIOCLOCK:
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case DIOCEJECT:
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case SCIOCIDENTIFY:
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case OSCIOCIDENTIFY:
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case SCIOCCOMMAND:
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case SCIOCDEBUG:
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if (SDPART(dev) == RAW_PART)
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break;
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/* FALLTHROUGH */
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default:
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return (EIO);
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}
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}
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switch (cmd) {
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case DIOCGDINFO:
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@ -937,7 +961,7 @@ sd_interpret_sense(xs)
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/*
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* If the device is not open yet, let the generic code handle it.
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*/
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if ((sc_link->flags & SDEV_OPEN) == 0) {
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if ((sc_link->flags & SDEV_MEDIA_LOADED) == 0) {
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return (retval);
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}
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@ -1005,7 +1029,9 @@ sdsize(dev)
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if (omask == 0 && sdopen(dev, 0, S_IFBLK, NULL) != 0)
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return (-1);
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if (sd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP)
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if ((sd->sc_link->flags & SDEV_MEDIA_LOADED) == 0)
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size = -1;
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else if (sd->sc_dk.dk_label->d_partitions[part].p_fstype != FS_SWAP)
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size = -1;
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else
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size = sd->sc_dk.dk_label->d_partitions[part].p_size *
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@ -1057,16 +1083,9 @@ sddump(dev, blkno, va, size)
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if (unit >= sd_cd.cd_ndevs || (sd = sd_cd.cd_devs[unit]) == NULL)
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return (ENXIO);
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/*
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* XXX Can't do this check, since the media might have been
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* XXX marked `invalid' by successful unmounting of all
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* XXX filesystems.
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*/
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#if 0
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/* Make sure it was initialized. */
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if ((sd->sc_link->flags & SDEV_MEDIA_LOADED) != SDEV_MEDIA_LOADED)
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return (ENXIO);
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#endif
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/* Convert to disk sectors. Request must be a multiple of size. */
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lp = sd->sc_dk.dk_label;
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