Some fixes for the CD and DA drivers from bde. (and some of my own as
well) Among them: [ cd driver ] 1. Old labeling code was still there. 2. Error handling for dsopen() was broken (no test for the `error' returned by dsopen(); bogus test of an `error' that is known to be 0). 3. cdopen() closed the physical device after certain errors although there may still be open partitions on it. 4. cdclose() closed the physical device although there may still be open partitions on it. 5. Some printf format fixes was incomplete or missing. 6. cdioctl() truncated unit numbers mod 256. 7. cdioctl() was missing locking. [ da driver ] 1. daclose() closed the physical device although there may still be open partitions on it. This was fixed many years ago in sd.c rev.1.57. 2. A minor optimization (the dk_slices != NULL test) in sdopen() became uglier in daopen(). It is not worth doing. da only regressed compared with od and my version of sd, since I never committed the change to sd. daopen() should probably do less if some partition is already open. This is not addressed by the diffs. [ ... ] 5. "opt_hw_wdog.h" was not included, so the HW_WDOG code was unreachable. - Added a getdev CCB call in the cdopen() and daopen() calls so that the vendor name and device name are available for the disklabel. (suggested by bde) - Removed vestigal devfs support in both drivers, since we can't properly work with devfs yet. (ask bde for details on this) - Cleaned up the probe code in both drivers in the failure cases. There were a number of things wrong here. The peripheral driver instances weren't getting properly cleaned up. Sometimes the wrong probe message would get printed out (with the failure message appended), so it wasn't very clear that we failed to attach. SCSI sense information was printed, even when the error in question wasn't a SCSI error. I put similar fixes into the changer driver in revision 1.2 of scsi_ch.c. Reviewed by: gibbs Submitted by: bde (partially)
This commit is contained in:
ken
parent
efd8e6f6ab
commit
e99a1c7e41
@ -24,7 +24,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* $Id: scsi_cd.c,v 1.3 1998/09/20 22:48:15 ken Exp $
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* $Id: scsi_cd.c,v 1.4 1998/09/23 03:17:08 ken Exp $
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*/
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/*
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* Portions of this driver taken from the original FreeBSD cd driver.
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@ -46,23 +46,18 @@
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* from: cd.c,v 1.83 1997/05/04 15:24:22 joerg Exp $
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*/
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#include "opt_cd.h"
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#include <sys/param.h>
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#include <sys/queue.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/types.h>
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#include <sys/buf.h>
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#include <sys/dkbad.h>
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#include <sys/disklabel.h>
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#include <sys/diskslice.h>
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#include <sys/malloc.h>
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#include <sys/fcntl.h>
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#include <sys/stat.h>
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#include <sys/conf.h>
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#include <sys/buf.h>
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#include <sys/cdio.h>
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#include <sys/errno.h>
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#include <sys/devicestat.h>
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#include <sys/sysctl.h>
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@ -72,20 +67,11 @@
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#include <cam/cam_periph.h>
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#include <cam/cam_xpt_periph.h>
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#include <cam/cam_queue.h>
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#include <cam/cam_debug.h>
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#include <cam/scsi/scsi_all.h>
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#include <cam/scsi/scsi_message.h>
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#include <cam/scsi/scsi_da.h>
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#include <cam/scsi/scsi_cd.h>
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#include "opt_cd.h"
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#define ESUCCESS 0
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#define CDUNIT(DEV) ((minor(DEV)&0xF8) >> 3) /* 5 bit unit */
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#define CDSETUNIT(DEV, U) makedev(major(DEV), ((U) << 3))
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#define PARTITION(z) (minor(z) & 0x07)
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#define RAW_PART 2
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#define LEADOUT 0xaa /* leadout toc entry */
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struct cd_params {
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@ -144,7 +130,6 @@ struct cd_softc {
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struct buf_queue_head buf_queue;
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LIST_HEAD(, ccb_hdr) pending_ccbs;
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struct cd_params params;
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struct disklabel disklabel;
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struct diskslices *cd_slices;
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union ccb saved_ccb;
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cd_quirks quirks;
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@ -153,13 +138,6 @@ struct cd_softc {
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struct cdchanger *changer;
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int bufs_left;
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struct cam_periph *periph;
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#ifdef DEVFS
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void *ra_devfs_token;
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void *rc_devfs_token;
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void *a_devfs_token;
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void *c_devfs_token;
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void *ctl_devfs_token;
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#endif
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};
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struct cd_quirk_entry {
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@ -199,6 +177,7 @@ static d_read_t cdread;
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static d_close_t cdclose;
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static d_ioctl_t cdioctl;
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static d_strategy_t cdstrategy;
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static d_strategy_t cdstrategy1;
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static periph_init_t cdinit;
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static periph_ctor_t cdregister;
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@ -223,7 +202,6 @@ static int cderror(union ccb *ccb, u_int32_t cam_flags,
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u_int32_t sense_flags);
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static void cdprevent(struct cam_periph *periph, int action);
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static int cdsize(dev_t dev, u_int32_t *size);
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static int cdgetdisklabel (dev_t dev);
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static int cdreadtoc(struct cam_periph *periph, u_int32_t mode,
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u_int32_t start, struct cd_toc_entry *data,
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u_int32_t len);
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@ -885,13 +863,13 @@ cdregister(struct cam_periph *periph, void *arg)
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static int
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cdopen(dev_t dev, int flags, int fmt, struct proc *p)
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{
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struct disklabel label;
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struct cam_periph *periph;
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struct cd_softc *softc;
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struct ccb_getdev cgd;
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u_int32_t size;
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int unit, error;
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error = 0; /* default to no error */
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unit = dkunit(dev);
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periph = cam_extend_get(cdperiphs, unit);
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@ -910,40 +888,70 @@ cdopen(dev_t dev, int flags, int fmt, struct proc *p)
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if (cam_periph_acquire(periph) != CAM_REQ_CMP)
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return(ENXIO);
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softc->flags |= CD_FLAG_OPEN;
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}
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/* lock the cd */
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cdprevent(periph, PR_PREVENT);
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cdprevent(periph, PR_PREVENT);
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}
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/* find out the size */
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if ((error = cdsize(dev, &size)) != 0) {
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cdprevent(periph, PR_ALLOW);
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softc->flags &= ~CD_FLAG_OPEN;
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if (dsisopen(softc->cd_slices) == 0) {
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cdprevent(periph, PR_ALLOW);
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softc->flags &= ~CD_FLAG_OPEN;
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}
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cam_periph_unlock(periph);
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cam_periph_release(periph);
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if ((softc->flags & CD_FLAG_OPEN) == 0)
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cam_periph_release(periph);
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return(error);
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}
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/* get a disklabel */
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if ((error = cdgetdisklabel(dev)) != 0) {
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printf("error getting disklabel\n");
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cdprevent(periph, PR_ALLOW);
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softc->flags &= ~CD_FLAG_OPEN;
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cam_periph_unlock(periph);
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cam_periph_release(periph);
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return(error);
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}
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/*
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* Build prototype label for whole disk.
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* Should take information about different data tracks from the
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* TOC and put it in the partition table.
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*/
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bzero(&label, sizeof(label));
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label.d_type = DTYPE_SCSI;
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/*
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* Grab the inquiry data to get the vendor and product names.
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* Put them in the typename and packname for the label.
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*/
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xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
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cgd.ccb_h.func_code = XPT_GDEV_TYPE;
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xpt_action((union ccb *)&cgd);
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strncpy(label.d_typename, cgd.inq_data.vendor,
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min(SID_VENDOR_SIZE, sizeof(label.d_typename)));
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strncpy(label.d_packname, cgd.inq_data.product,
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min(SID_PRODUCT_SIZE, sizeof(label.d_packname)));
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label.d_secsize = softc->params.blksize;
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label.d_secperunit = softc->params.disksize;
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label.d_flags = D_REMOVABLE;
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/*
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* Make partition 'a' cover the whole disk. This is a temporary
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* compatibility hack. The 'a' partition should not exist, so
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* the slice code won't create it. The slice code will make
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* partition (RAW_PART + 'a') cover the whole disk and fill in
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* some more defaults.
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*/
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label.d_partitions[0].p_size = label.d_secperunit;
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label.d_partitions[0].p_fstype = FS_OTHER;
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/* Initialize slice tables. */
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error = dsopen("cd", dev, fmt, DSO_NOLABELS | DSO_ONESLICE,
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&softc->cd_slices, &label, cdstrategy,
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(ds_setgeom_t *)NULL, &cd_cdevsw);
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if (error == 0) {
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/* Initialize slice tables. */
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error = dsopen("cd", dev, fmt, DSO_NOLABELS | DSO_ONESLICE,
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&softc->cd_slices, &softc->disklabel,
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cdstrategy, (ds_setgeom_t *)NULL, &cd_cdevsw);
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/*
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* We unconditionally (re)set the blocksize each time the
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* CD device is opened. This is because the CD can change,
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* and therefore the blocksize might change.
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* XXX problems here if some slice or partition is still
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* open with the old size?
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*/
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if ((softc->device_stats.flags & DEVSTAT_BS_UNAVAILABLE) != 0)
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softc->device_stats.flags &= ~DEVSTAT_BS_UNAVAILABLE;
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@ -979,6 +987,10 @@ cdclose(dev_t dev, int flag, int fmt, struct proc *p)
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return (error);
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dsclose(dev, fmt, softc->cd_slices);
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if (dsisopen(softc->cd_slices)) {
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cam_periph_unlock(periph);
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return (0);
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}
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if ((softc->flags & CD_FLAG_DISC_REMOVABLE) != 0)
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cdprevent(periph, PR_ALLOW);
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@ -1416,6 +1428,16 @@ cdstrategy(struct buf *bp)
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return;
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}
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static void
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cdstrategy1(struct buf *bp)
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{
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/*
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* XXX - do something to make cdstrategy() but not this block while
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* we're doing dsopen() and dsioctl().
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*/
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cdstrategy(bp);
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}
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static void
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cdstart(struct cam_periph *periph, union ccb *start_ccb)
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{
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@ -1651,8 +1673,8 @@ cddone(struct cam_periph *periph, union ccb *done_ccb)
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if ((csio->ccb_h.status & CAM_STATUS_MASK) == CAM_REQ_CMP) {
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sprintf(announce_buf,
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"cd present [%ld x %d byte records]",
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cdp->disksize, cdp->blksize);
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"cd present [%lu x %lu byte records]",
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cdp->disksize, (u_long)cdp->blksize);
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} else {
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int error;
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@ -1736,58 +1758,47 @@ cddone(struct cam_periph *periph, union ccb *done_ccb)
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* Otherwise, just say that we
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* couldn't attach.
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*/
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if ((have_sense) && (asc || ascq)
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&& (error_code == SSD_CURRENT_ERROR))
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sprintf(announce_buf,
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"fatal error: %s, %s "
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"-- failed to attach "
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"to device",
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scsi_sense_key_text[sense_key],
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scsi_sense_desc(asc,ascq,
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&cgd.inq_data));
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else
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sprintf(announce_buf,
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"fatal error, failed"
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" to attach to device");
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/*
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* Just print out the error, not
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* the full probe message, when we
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* don't attach.
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*/
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printf("%s%d: %s\n",
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periph->periph_name,
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periph->unit_number,
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announce_buf);
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scsi_sense_print(&done_ccb->csio);
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if (have_sense)
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scsi_sense_print(
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&done_ccb->csio);
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else {
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xpt_print_path(periph->path);
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printf("got CAM status %#x\n",
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done_ccb->ccb_h.status);
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}
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xpt_print_path(periph->path);
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printf("fatal error, failed"
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" to attach to device");
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/*
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* Free up resources.
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*/
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cam_extend_release(cdperiphs,
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periph->unit_number);
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cam_periph_invalidate(periph);
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periph = NULL;
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announce_buf[0] = '\0';
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} else {
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/*
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* Free up resources.
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*/
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cam_extend_release(cdperiphs,
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periph->unit_number);
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cam_periph_invalidate(periph);
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periph = NULL;
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announce_buf[0] = '\0';
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}
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}
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}
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free(rdcap, M_TEMP);
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if (periph != NULL) {
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if (announce_buf[0] != '\0')
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xpt_announce_periph(periph, announce_buf);
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softc->state = CD_STATE_NORMAL;
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cam_periph_unlock(periph);
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}
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softc->state = CD_STATE_NORMAL;
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if (softc->flags & CD_FLAG_CHANGER)
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cdchangerschedule(softc);
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cam_periph_unlock(periph);
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break;
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}
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case CD_CCB_WAITING:
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@ -1809,11 +1820,9 @@ cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
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struct cam_periph *periph;
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struct cd_softc *softc;
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u_int8_t unit, part;
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int error;
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int error, unit;
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unit = dkunit(dev);
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part = dkpart(dev);
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periph = cam_extend_get(cdperiphs, unit);
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if (periph == NULL)
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@ -1824,9 +1833,12 @@ cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
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softc = (struct cd_softc *)periph->softc;
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CAM_DEBUG(periph->path, CAM_DEBUG_TRACE,
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("trying to do ioctl %#x\n", cmd));
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("trying to do ioctl %#lx\n", cmd));
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error = 0;
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error = cam_periph_lock(periph, PRIBIO | PCATCH);
|
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if (error != 0)
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return(error);
|
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switch (cmd) {
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@ -2451,6 +2463,8 @@ cdioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct proc *p)
|
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break;
|
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}
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cam_periph_unlock(periph);
|
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|
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CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("leaving cdioctl\n"));
|
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return (error);
|
||||
@ -2562,59 +2576,6 @@ cderror(union ccb *ccb, u_int32_t cam_flags, u_int32_t sense_flags)
|
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&softc->saved_ccb));
|
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}
|
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|
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static int
|
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cdgetdisklabel(dev_t dev)
|
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{
|
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struct cam_periph *periph;
|
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struct cd_softc *softc;
|
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periph = cam_extend_get(cdperiphs, dkunit(dev));
|
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|
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if (periph == NULL)
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return (ENXIO);
|
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|
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CAM_DEBUG(periph->path, CAM_DEBUG_TRACE, ("entering cdgetdisklabel\n"));
|
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softc = (struct cd_softc *)periph->softc;
|
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bzero(&softc->disklabel, sizeof(struct disklabel));
|
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|
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/* XXX Use the controller's geometry for this */
|
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softc->disklabel.d_type = DTYPE_SCSI;
|
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sprintf(softc->disklabel.d_typename, "%s%d", periph->periph_name,
|
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periph->unit_number);
|
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strncpy(softc->disklabel.d_packname, "ficticious", 16);
|
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softc->disklabel.d_secsize = softc->params.blksize;
|
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softc->disklabel.d_nsectors = 100;
|
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softc->disklabel.d_ntracks = 1;
|
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softc->disklabel.d_ncylinders = (softc->params.disksize / 100) + 1;
|
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softc->disklabel.d_secpercyl = 100;
|
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softc->disklabel.d_secperunit = softc->params.disksize;
|
||||
softc->disklabel.d_rpm = 300;
|
||||
softc->disklabel.d_interleave = 1;
|
||||
softc->disklabel.d_flags = D_REMOVABLE;
|
||||
|
||||
/*
|
||||
* Make partition 'a' cover the whole disk. This is a temporary
|
||||
* compatibility hack. The 'a' partition should not exist, so
|
||||
* the slice code won't create it. The slice code will make
|
||||
* partition (RAW_PART + 'a') cover the whole disk and fill in
|
||||
* some more defaults.
|
||||
*/
|
||||
softc->disklabel.d_npartitions = 1;
|
||||
softc->disklabel.d_partitions[0].p_offset = 0;
|
||||
softc->disklabel.d_partitions[0].p_size
|
||||
= softc->params.disksize;
|
||||
softc->disklabel.d_partitions[0].p_fstype = FS_OTHER;
|
||||
|
||||
/*
|
||||
* Signal to other users and routines that we now have a
|
||||
* disklabel that represents the media (maybe)
|
||||
*/
|
||||
return (0);
|
||||
|
||||
}
|
||||
|
||||
/*
|
||||
* Read table of contents
|
||||
*/
|
||||
|
||||
@ -25,14 +25,14 @@
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: scsi_da.c,v 1.4 1998/09/19 04:59:35 gibbs Exp $
|
||||
* $Id: scsi_da.c,v 1.5 1998/09/20 07:17:11 gibbs Exp $
|
||||
*/
|
||||
|
||||
#include "opt_hw_wdog.h"
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/queue.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/types.h>
|
||||
#include <sys/buf.h>
|
||||
#include <sys/devicestat.h>
|
||||
#include <sys/dkbad.h>
|
||||
@ -41,8 +41,8 @@
|
||||
#include <sys/malloc.h>
|
||||
#include <sys/conf.h>
|
||||
|
||||
#include <machine/cons.h> /* For cncheckc */
|
||||
#include <machine/md_var.h> /* For Maxmem */
|
||||
#include <machine/cons.h>
|
||||
#include <machine/md_var.h>
|
||||
|
||||
#include <vm/vm.h>
|
||||
#include <vm/vm_prot.h>
|
||||
@ -53,12 +53,8 @@
|
||||
#include <cam/cam_extend.h>
|
||||
#include <cam/cam_periph.h>
|
||||
#include <cam/cam_xpt_periph.h>
|
||||
#include <cam/cam_debug.h>
|
||||
|
||||
#include <cam/scsi/scsi_all.h>
|
||||
#include <cam/scsi/scsi_message.h>
|
||||
#include <cam/scsi/scsi_da.h>
|
||||
|
||||
|
||||
typedef enum {
|
||||
DA_STATE_PROBE,
|
||||
@ -109,11 +105,6 @@ struct da_softc {
|
||||
struct disk_params params;
|
||||
struct diskslices *dk_slices; /* virtual drives */
|
||||
union ccb saved_ccb;
|
||||
#ifdef DEVFS
|
||||
void *b_devfs_token;
|
||||
void *c_devfs_token;
|
||||
void *ctl_devfs_token;
|
||||
#endif
|
||||
};
|
||||
|
||||
static d_open_t daopen;
|
||||
@ -234,20 +225,17 @@ daopen(dev_t dev, int flags, int fmt, struct proc *p)
|
||||
}
|
||||
|
||||
if ((softc->flags & DA_FLAG_PACK_INVALID) != 0) {
|
||||
|
||||
if (softc->dk_slices != NULL) {
|
||||
/*
|
||||
* If any partition is open, but the disk has
|
||||
* been invalidated, disallow further opens.
|
||||
*/
|
||||
if (dsisopen(softc->dk_slices)) {
|
||||
cam_periph_unlock(periph);
|
||||
return(ENXIO);
|
||||
}
|
||||
|
||||
/* Invalidate our pack information */
|
||||
dsgone(&softc->dk_slices);
|
||||
/*
|
||||
* If any partition is open, although the disk has
|
||||
* been invalidated, disallow further opens.
|
||||
*/
|
||||
if (dsisopen(softc->dk_slices)) {
|
||||
cam_periph_unlock(periph);
|
||||
return (ENXIO);
|
||||
}
|
||||
|
||||
/* Invalidate our pack information. */
|
||||
dsgone(&softc->dk_slices);
|
||||
softc->flags &= ~DA_FLAG_PACK_INVALID;
|
||||
}
|
||||
|
||||
@ -284,9 +272,25 @@ daopen(dev_t dev, int flags, int fmt, struct proc *p)
|
||||
}
|
||||
|
||||
if (error == 0) {
|
||||
struct ccb_getdev cgd;
|
||||
|
||||
/* Build label for whole disk. */
|
||||
bzero(&label, sizeof(label));
|
||||
label.d_type = DTYPE_SCSI;
|
||||
|
||||
/*
|
||||
* Grab the inquiry data to get the vendor and product names.
|
||||
* Put them in the typename and packname for the label.
|
||||
*/
|
||||
xpt_setup_ccb(&cgd.ccb_h, periph->path, /*priority*/ 1);
|
||||
cgd.ccb_h.func_code = XPT_GDEV_TYPE;
|
||||
xpt_action((union ccb *)&cgd);
|
||||
|
||||
strncpy(label.d_typename, cgd.inq_data.vendor,
|
||||
min(SID_VENDOR_SIZE, sizeof(label.d_typename)));
|
||||
strncpy(label.d_packname, cgd.inq_data.product,
|
||||
min(SID_PRODUCT_SIZE, sizeof(label.d_packname)));
|
||||
|
||||
label.d_secsize = softc->params.secsize;
|
||||
label.d_nsectors = softc->params.secs_per_track;
|
||||
label.d_ntracks = softc->params.heads;
|
||||
@ -347,6 +351,10 @@ daclose(dev_t dev, int flag, int fmt, struct proc *p)
|
||||
}
|
||||
|
||||
dsclose(dev, fmt, softc->dk_slices);
|
||||
if (dsisopen(softc->dk_slices)) {
|
||||
cam_periph_unlock(periph);
|
||||
return (0);
|
||||
}
|
||||
|
||||
ccb = cam_periph_getccb(periph, /*priority*/1);
|
||||
|
||||
@ -1210,53 +1218,32 @@ dadone(struct cam_periph *periph, union ccb *done_ccb)
|
||||
scsi_sense_desc(asc,ascq,
|
||||
&cgd.inq_data));
|
||||
else {
|
||||
/*
|
||||
* If we have sense information, go
|
||||
* ahead and print it out.
|
||||
* Otherwise, just say that we
|
||||
* couldn't attach.
|
||||
*/
|
||||
if ((have_sense) && (asc || ascq)
|
||||
&& (error_code == SSD_CURRENT_ERROR))
|
||||
sprintf(announce_buf,
|
||||
"fatal error: %s, %s "
|
||||
"-- failed to attach "
|
||||
"to device",
|
||||
scsi_sense_key_text[sense_key],
|
||||
scsi_sense_desc(asc,ascq,
|
||||
&cgd.inq_data));
|
||||
else
|
||||
sprintf(announce_buf,
|
||||
"fatal error, failed"
|
||||
" to attach to device");
|
||||
if (have_sense)
|
||||
scsi_sense_print(
|
||||
&done_ccb->csio);
|
||||
else {
|
||||
xpt_print_path(periph->path);
|
||||
printf("got CAM status %#x\n",
|
||||
done_ccb->ccb_h.status);
|
||||
}
|
||||
|
||||
/*
|
||||
* Just print out the error, not
|
||||
* the full probe message, when we
|
||||
* don't attach.
|
||||
*/
|
||||
printf("%s%d: %s\n",
|
||||
periph->periph_name,
|
||||
periph->unit_number,
|
||||
announce_buf);
|
||||
scsi_sense_print(&done_ccb->csio);
|
||||
xpt_print_path(periph->path);
|
||||
printf("fatal error, failed"
|
||||
" to attach to device");
|
||||
|
||||
/*
|
||||
* Free up resources.
|
||||
*/
|
||||
cam_extend_release(daperiphs,
|
||||
periph->unit_number);
|
||||
cam_periph_invalidate(periph);
|
||||
periph = NULL;
|
||||
announce_buf[0] = '\0';
|
||||
}
|
||||
}
|
||||
}
|
||||
free(rdcap, M_TEMP);
|
||||
if (periph != NULL) {
|
||||
if (announce_buf[0] != '\0')
|
||||
xpt_announce_periph(periph, announce_buf);
|
||||
softc->state = DA_STATE_NORMAL;
|
||||
cam_periph_unlock(periph);
|
||||
}
|
||||
softc->state = DA_STATE_NORMAL;
|
||||
cam_periph_unlock(periph);
|
||||
break;
|
||||
}
|
||||
case DA_CCB_WAITING:
|
||||
|
||||
Loading…
Reference in New Issue
Block a user