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https://github.com/freebsd/freebsd-src.git
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First attempt at creating devfs entries for sliced devices. Doesn't
quite work yet, so the heart of it is disabled. Added bdev and cdev args to dsopen(). drivers: Fixed device names, links, minor numbers and modes. wd.c: Started actually supporting devfs. diskslice.h: Added devfs tokens to structs (currently 576 of them per disk! :-(). subr_diskslice.c: Create devfs entries in dsopen() and (unsuccessfully) attempt to make them go away at the right times. DEVFS is #undefed at the start so that this shouldn't cause problems.
This commit is contained in:
Bruce Evans
parent
dd87702a51
commit
c8f2fe8db8
Notes:
svn2git
2020-12-20 02:59:44 +00:00
svn path=/head/; revision=13647
@ -43,7 +43,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)fd.c 7.4 (Berkeley) 5/25/91
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* $Id: fd.c,v 1.77 1995/12/10 19:44:45 bde Exp $
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* $Id: fd.c,v 1.78 1996/01/27 02:33:35 bde Exp $
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*
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*/
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@ -247,8 +247,8 @@ static struct fd_data {
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int options; /* user configurable options, see ioctl_fd.h */
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int dkunit; /* disk stats unit number */
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#ifdef DEVFS
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void *rfd_devfs_token;
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void *fd_devfs_token;
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void *bdev;
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void *cdev;
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#endif
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} fd_data[NFD];
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@ -568,6 +568,7 @@ fdattach(struct isa_device *dev)
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struct isa_device *fdup;
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int ic_type = 0;
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#ifdef DEVFS
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int mynor;
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char name[64];
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#endif /* DEVFS */
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@ -765,12 +766,14 @@ fdattach(struct isa_device *dev)
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}
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kdc_fd[fdu].kdc_state = DC_IDLE;
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#ifdef DEVFS
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fd->rfd_devfs_token = devfs_add_devsw(
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"/",name,&fd_cdevsw, fdu * 8,
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DV_CHR,0,0,0644);
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fd->fd_devfs_token = devfs_add_devsw(
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"/",name+1, &fd_bdevsw, fdu * 8,
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DV_BLK,0,0,0644);
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mynor = 8 * fdu;
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fd->bdev = devfs_add_devsw("/", name + 1, &fd_bdevsw, mynor,
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DV_BLK, 0, 0, 0640);
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fd->cdev = devfs_add_devsw("/", name, &fd_cdevsw, mynor,
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DV_CHR, 0, 0, 0640);
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sprintf(name, "rfd%d", fdu);
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dev_link("/", name + 1, fd->bdev);
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dev_link("/", name, fd->cdev);
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#endif /* DEVFS */
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if (dk_ndrive < DK_NDRIVE) {
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sprintf(dk_names[dk_ndrive], "fd%d", fdu);
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@ -133,6 +133,10 @@ int vndebug = 0x00;
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struct vn_softc {
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int sc_flags; /* flags */
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size_t sc_size; /* size of vn */
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#if defined(DEVFS) && defined(notyet)
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void *sc_bdev; /* devfs token for whole disk */
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void *sc_cdev; /* devfs token for raw whole disk */
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#endif
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struct vnode *sc_vp; /* vnode */
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struct ucred *sc_cred; /* credentials */
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int sc_maxactive; /* max # of active requests */
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@ -206,7 +210,8 @@ vnopen(dev_t dev, int flags, int mode, struct proc *p)
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vn->sc_size;
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return (dsopen("vn", dev, mode, &vn->sc_slices, &label,
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vnstrategy, (ds_setgeom_t *)NULL));
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vnstrategy, (ds_setgeom_t *)NULL,
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&vn_bdevsw, &vn_cdevsw));
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}
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if (dkslice(dev) != WHOLE_DISK_SLICE ||
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dkpart(dev) != RAW_PART ||
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@ -618,6 +623,12 @@ static void
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vn_drvinit(void *unused)
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{
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dev_t dev;
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#ifdef DEVFS
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int mynor;
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char name[32];
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int unit;
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struct vn_softc *vn;
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#endif
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if( ! vn_devsw_installed ) {
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dev = makedev(CDEV_MAJOR,0);
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@ -626,17 +637,21 @@ vn_drvinit(void *unused)
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bdevsw_add(&dev,&vn_bdevsw,NULL);
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vn_devsw_installed = 1;
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#ifdef DEVFS
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{
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void *x;
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/* default for a simple device with no probe routine (usually delete this) */
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x=devfs_add_devsw(
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/* path name major minor type uid gid perm*/
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"/", "rvn", &vn_cdevsw, 0, DV_CHR, 0, 0, 0600);
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x=devfs_add_devsw(
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"/", "vn", &vn_bdevsw, 0, DV_BLK, 0, 0, 0600);
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for (unit = 0; unit < NVN; unit++) {
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vn = vn_softc[unit];
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mynor = dkmakeminor(unit, WHOLE_DISK_SLICE, RAW_PART);
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sprintf(name, "rvn%d", unit);
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/*
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* XXX not saving tokens yet. The vn devices don't
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* exist until after they have been opened :-).
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*/
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devfs_add_devsw("/", name + 1, &vn_bdevsw, mynor,
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DV_BLK, 0, 0, 0640);
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devfs_add_devsw("/", name, &vn_cdevsw, mynor,
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DV_CHR, 0, 0, 0640);
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}
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#endif
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}
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}
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}
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SYSINIT(vndev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,vn_drvinit,NULL)
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@ -43,7 +43,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)fd.c 7.4 (Berkeley) 5/25/91
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* $Id: fd.c,v 1.77 1995/12/10 19:44:45 bde Exp $
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* $Id: fd.c,v 1.78 1996/01/27 02:33:35 bde Exp $
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*
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*/
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@ -247,8 +247,8 @@ static struct fd_data {
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int options; /* user configurable options, see ioctl_fd.h */
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int dkunit; /* disk stats unit number */
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#ifdef DEVFS
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void *rfd_devfs_token;
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void *fd_devfs_token;
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void *bdev;
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void *cdev;
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#endif
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} fd_data[NFD];
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@ -568,6 +568,7 @@ fdattach(struct isa_device *dev)
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struct isa_device *fdup;
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int ic_type = 0;
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#ifdef DEVFS
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int mynor;
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char name[64];
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#endif /* DEVFS */
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@ -765,12 +766,14 @@ fdattach(struct isa_device *dev)
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}
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kdc_fd[fdu].kdc_state = DC_IDLE;
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#ifdef DEVFS
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fd->rfd_devfs_token = devfs_add_devsw(
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"/",name,&fd_cdevsw, fdu * 8,
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DV_CHR,0,0,0644);
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fd->fd_devfs_token = devfs_add_devsw(
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"/",name+1, &fd_bdevsw, fdu * 8,
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DV_BLK,0,0,0644);
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mynor = 8 * fdu;
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fd->bdev = devfs_add_devsw("/", name + 1, &fd_bdevsw, mynor,
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DV_BLK, 0, 0, 0640);
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fd->cdev = devfs_add_devsw("/", name, &fd_cdevsw, mynor,
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DV_CHR, 0, 0, 0640);
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sprintf(name, "rfd%d", fdu);
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dev_link("/", name + 1, fd->bdev);
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dev_link("/", name, fd->cdev);
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#endif /* DEVFS */
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if (dk_ndrive < DK_NDRIVE) {
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sprintf(dk_names[dk_ndrive], "fd%d", fdu);
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@ -34,7 +34,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)wd.c 7.2 (Berkeley) 5/9/91
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* $Id: wd.c,v 1.101 1995/12/11 05:02:40 dyson Exp $
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* $Id: wd.c,v 1.102 1996/01/16 18:13:16 phk Exp $
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*/
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/* TODO:
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@ -231,7 +231,10 @@ struct disk {
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u_char dk_error; /* copy of error reg. */
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u_char dk_timeout; /* countdown to next timeout */
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short dk_port; /* i/o port base */
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#ifdef DEVFS
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void *dk_bdev; /* devfs token for whole disk */
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void *dk_cdev; /* devfs token for raw whole disk */
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#endif
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u_long cfg_flags; /* configured characteristics */
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short dk_flags; /* drive characteristics found */
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#define DKFL_SINGLE 0x00004 /* sector at a time mode */
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@ -431,6 +434,10 @@ nodevice:
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static int
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wdattach(struct isa_device *dvp)
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{
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#ifdef DEVFS
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int mynor;
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char name[32];
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#endif
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int unit, lunit;
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struct isa_device *wdup;
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struct disk *du;
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@ -508,6 +515,17 @@ wdattach(struct isa_device *dvp)
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wdtimeout(du);
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wd_registerdev(dvp->id_unit, lunit);
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#ifdef DEVFS
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mynor = dkmakeminor(unit, WHOLE_DISK_SLICE, RAW_PART);
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sprintf(name, "rwd%d", unit);
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du->dk_bdev = devfs_add_devsw("/", name + 1, &wd_bdevsw,
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mynor, DV_BLK, 0, 0,
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0640);
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du->dk_cdev = devfs_add_devsw("/", name, &wd_cdevsw,
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mynor, DV_CHR, 0, 0,
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0640);
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#endif
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if (dk_ndrive < DK_NDRIVE) {
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sprintf(dk_names[dk_ndrive], "wd%d", lunit);
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/*
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@ -1168,7 +1186,7 @@ wdopen(dev_t dev, int flags, int fmt, struct proc *p)
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label.d_secpercyl = du->dk_dd.d_secpercyl;
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label.d_secperunit = du->dk_dd.d_secperunit;
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error = dsopen("wd", dev, fmt, &du->dk_slices, &label, wdstrategy1,
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(ds_setgeom_t *)NULL);
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(ds_setgeom_t *)NULL, &wd_bdevsw, &wd_cdevsw);
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}
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du->dk_flags &= ~DKFL_LABELLING;
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wdsleep(du->dk_ctrlr, "wdopn2");
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21
sys/isa/fd.c
21
sys/isa/fd.c
@ -43,7 +43,7 @@
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* SUCH DAMAGE.
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*
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* from: @(#)fd.c 7.4 (Berkeley) 5/25/91
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* $Id: fd.c,v 1.77 1995/12/10 19:44:45 bde Exp $
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* $Id: fd.c,v 1.78 1996/01/27 02:33:35 bde Exp $
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*
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*/
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@ -247,8 +247,8 @@ static struct fd_data {
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int options; /* user configurable options, see ioctl_fd.h */
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int dkunit; /* disk stats unit number */
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#ifdef DEVFS
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void *rfd_devfs_token;
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void *fd_devfs_token;
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void *bdev;
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void *cdev;
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#endif
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} fd_data[NFD];
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@ -568,6 +568,7 @@ fdattach(struct isa_device *dev)
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struct isa_device *fdup;
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int ic_type = 0;
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#ifdef DEVFS
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int mynor;
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char name[64];
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#endif /* DEVFS */
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@ -765,12 +766,14 @@ fdattach(struct isa_device *dev)
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}
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kdc_fd[fdu].kdc_state = DC_IDLE;
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#ifdef DEVFS
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fd->rfd_devfs_token = devfs_add_devsw(
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"/",name,&fd_cdevsw, fdu * 8,
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DV_CHR,0,0,0644);
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fd->fd_devfs_token = devfs_add_devsw(
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"/",name+1, &fd_bdevsw, fdu * 8,
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DV_BLK,0,0,0644);
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mynor = 8 * fdu;
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fd->bdev = devfs_add_devsw("/", name + 1, &fd_bdevsw, mynor,
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DV_BLK, 0, 0, 0640);
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fd->cdev = devfs_add_devsw("/", name, &fd_cdevsw, mynor,
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DV_CHR, 0, 0, 0640);
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sprintf(name, "rfd%d", fdu);
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dev_link("/", name + 1, fd->bdev);
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dev_link("/", name, fd->cdev);
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#endif /* DEVFS */
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if (dk_ndrive < DK_NDRIVE) {
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sprintf(dk_names[dk_ndrive], "fd%d", fdu);
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@ -28,7 +28,7 @@
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*
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* $Id: od.c,v 1.10 1995/12/14 09:54:22 phk Exp $
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* $Id: od.c,v 1.11 1996/01/05 20:12:42 wollman Exp $
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*/
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/*
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@ -208,7 +208,10 @@ odattach(struct scsi_link *sc_link)
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{
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u_int32 unit;
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struct disk_parms *dp;
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#ifdef DEVFS
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char name[32];
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int mynor;
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#endif
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struct scsi_data *od = sc_link->sd;
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@ -252,14 +255,14 @@ odattach(struct scsi_link *sc_link)
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od->flags |= ODINIT;
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od_registerdev(unit);
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#ifdef DEVFS
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/* FIX PROPERLY WHEN DISKSLICE CODE IS UNDERSTOOD */
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mynor = dkmakeminor(unit, WHOLE_DISK_SLICE, RAW_PART);
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sprintf(name, "rod%d", unit);
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od->c_devfs_token = devfs_add_devsw( "/", name, &od_cdevsw, 0,
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DV_CHR, 0, 0, 0600);
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sprintf(name, "od%d", unit);
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od->b_devfs_token = devfs_add_devsw( "/", name, &od_bdevsw, 0,
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DV_BLK, 0, 0, 0600);
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od->b_devfs_token = devfs_add_devsw("/", name + 1, &od_bdevsw, mynor,
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DV_BLK, 0, 0, 0640);
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od->c_devfs_token = devfs_add_devsw("/", name, &od_cdevsw, mynor,
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DV_CHR, 0, 0, 0640);
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#endif
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return 0;
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@ -371,7 +374,7 @@ od_open(dev, mode, fmt, p, sc_link)
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/* Initialize slice tables. */
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errcode = dsopen("od", dev, fmt, &od->dk_slices, &label, odstrategy1,
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(ds_setgeom_t *)NULL);
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(ds_setgeom_t *)NULL, &od_bdevsw, &od_cdevsw);
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if (errcode != 0)
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goto bad;
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SC_DEBUG(sc_link, SDEV_DB3, ("Slice tables initialized "));
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@ -14,7 +14,7 @@
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*
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* Ported to run under 386BSD by Julian Elischer (julian@dialix.oz.au) Sept 1992
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*
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* $Id: sd.c,v 1.82 1995/12/14 19:38:40 bde Exp $
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* $Id: sd.c,v 1.83 1996/01/05 20:12:49 wollman Exp $
|
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*/
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#include "opt_bounce.h"
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@ -193,6 +193,7 @@ sdattach(struct scsi_link *sc_link)
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u_int32 unit;
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struct disk_parms *dp;
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#ifdef DEVFS
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int mynor;
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char name[32];
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#endif
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@ -236,14 +237,14 @@ sdattach(struct scsi_link *sc_link)
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sd_registerdev(unit);
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#ifdef DEVFS
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/* Fix minor numbers */
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sprintf(name,"rsd%d",unit);
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sd->c_devfs_token = devfs_add_devsw( "/", name, &sd_cdevsw, 0,
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DV_CHR, 0, 0, 0600);
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sprintf(name,"sd%d",unit);
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sd->b_devfs_token = devfs_add_devsw( "/", name, &sd_bdevsw, 0,
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DV_BLK, 0, 0, 0600);
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mynor = dkmakeminor(unit, WHOLE_DISK_SLICE, RAW_PART);
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sprintf(name, "rsd%d", unit);
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sd->b_devfs_token = devfs_add_devsw("/", name + 1, &sd_bdevsw, mynor,
|
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DV_BLK, 0, 0, 0640);
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sd->c_devfs_token = devfs_add_devsw("/", name, &sd_cdevsw, mynor,
|
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DV_CHR, 0, 0, 0640);
|
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#endif
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return 0;
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}
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@ -352,7 +353,7 @@ sd_open(dev, mode, fmt, p, sc_link)
|
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|
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/* Initialize slice tables. */
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errcode = dsopen("sd", dev, fmt, &sd->dk_slices, &label, sdstrategy1,
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(ds_setgeom_t *)NULL);
|
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(ds_setgeom_t *)NULL, &sd_bdevsw, &sd_cdevsw);
|
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if (errcode != 0)
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goto bad;
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SC_DEBUG(sc_link, SDEV_DB3, ("Slice tables initialized "));
|
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|
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@ -23,7 +23,7 @@
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*
|
||||
* $Id: diskslice.h,v 1.9 1995/05/08 16:27:10 bde Exp $
|
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* $Id: diskslice.h,v 1.10 1995/05/30 08:14:19 rgrimes Exp $
|
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*/
|
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|
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#ifndef _SYS_DISKSLICE_H_
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@ -46,6 +46,17 @@ struct diskslice {
|
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int ds_type; /* (foreign) slice type */
|
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struct dkbad_intern *ds_bad; /* bad sector table, if any */
|
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struct disklabel *ds_label; /* BSD label, if any */
|
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void *ds_bdev; /* devfs token for whole slice */
|
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void *ds_cdev; /* devfs token for raw whole slice */
|
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#ifdef MAXPARTITIONS /* XXX don't depend on dislabel.h */
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#if MAXPARTITIONS != 8 /* but check consistency if possible */
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#error "inconsistent MAXPARTITIONS"
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#endif
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#else
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#define MAXPARTITIONS 8
|
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#endif
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void *ds_bdevs[MAXPARTITIONS]; /* XXX s.b. in label */
|
||||
void *ds_cdevs[MAXPARTITIONS]; /* XXX s.b. in label */
|
||||
u_char ds_bopenmask; /* bdevs open */
|
||||
u_char ds_copenmask; /* cdevs open */
|
||||
u_char ds_openmask; /* [bc]devs open */
|
||||
@ -81,6 +92,8 @@ struct diskslice {
|
||||
#endif
|
||||
|
||||
struct diskslices {
|
||||
struct bdevsw *dss_bdevsw; /* for containing device */
|
||||
struct cdevsw *dss_cdevsw; /* for containing device */
|
||||
int dss_first_bsd_slice; /* COMPATIBILTY_SLICE is mapped here */
|
||||
u_int dss_nslices; /* actual dimension of dss_slices[] */
|
||||
struct diskslice
|
||||
@ -112,7 +125,8 @@ char *dsname __P((char *dname, int unit, int slice, int part,
|
||||
char *partname));
|
||||
int dsopen __P((char *dname, dev_t dev, int mode, struct diskslices **sspp,
|
||||
struct disklabel *lp, d_strategy_t *strat,
|
||||
ds_setgeom_t *setgeom));
|
||||
ds_setgeom_t *setgeom, struct bdevsw *bdevsw,
|
||||
struct cdevsw *cdevsw));
|
||||
int dssize __P((dev_t dev, struct diskslices **sspp, d_open_t dopen,
|
||||
d_close_t dclose));
|
||||
|
||||
|
||||
Loading…
Reference in New Issue
Block a user