int
dkopen(struct open_file *f, ...)
{
struct disklabel *lp;
struct hppa_dev *dp = f->f_devdata;
const char *st;
#ifdef DEBUG
if (debug)
printf("dkopen(%p)\n", f);
#endif
if (!(dp->pz_dev = pdc_findev(-1, PCL_RANDOM)))
return ENXIO;
lp = dp->label;
st = NULL;
#ifdef DEBUG
if (debug)
printf ("disklabel\n");
#endif
if ((st = dk_disklabel(dp, lp)) != NULL) {
#ifdef DEBUG
if (debug)
printf ("dkopen: %s\n", st);
#endif
/* we do not know if it's a disk or net, but do not fail */
} else {
u_int i;
i = B_PARTITION(dp->bootdev);
if (i >= lp->d_npartitions || !lp->d_partitions[i].p_size)
return (EPART);
dp->fsoff = lp->d_partitions[i].p_offset;
}
#ifdef DEBUGBUG
if (debug)
printf ("dkopen() ret\n");
#endif
return (0);
}
int
dkopen(struct open_file *f, ...)
{
struct disklabel *lp;
struct hppa_dev *dp = f->f_devdata;
const char *st;
u_int i;
#ifdef DEBUG
if (debug)
printf("dkopen(%p)\n", f);
#endif
if (!(dp->pz_dev = pdc_findev(-1, PCL_RANDOM)))
return ENXIO;
lp = dp->label;
st = NULL;
#ifdef DEBUG
if (debug)
printf ("disklabel\n");
#endif
if ((st = dk_disklabel(dp, lp)) != NULL) {
#ifdef DEBUG
if (debug)
printf ("dkopen: %s\n", st);
#endif
return ERDLAB;
} else {
i = B_PARTITION(dp->bootdev);
#ifdef DEBUG
if (debug)
printf("bootdev 0x%x, partition %u\n", dp->bootdev, i);
#endif
if (i >= lp->d_npartitions || !lp->d_partitions[i].p_size) {
return (EPART);
}
}
#ifdef DEBUGBUG
if (debug)
printf ("dkopen() ret\n");
#endif
return (0);
}
int
dkopen(struct open_file *f, ...)
{
struct disklabel dkl;
struct hppa_dev *dp = f->f_devdata;
const char *st;
u_int i;
#ifdef DEBUG
if (debug)
printf("dkopen(%p)\n", f);
#endif
if (!(dp->pz_dev = pdc_findev(-1, PCL_RANDOM)))
return ENXIO;
dp->part_off = 0;
st = NULL;
#ifdef DEBUG
if (debug)
printf ("disklabel\n");
#endif
if ((st = dk_disklabel(dp, &dkl)) != NULL) {
#ifdef DEBUG
if (debug)
printf ("dkopen: %s\n", st);
#endif
/*
* Ignore disklabel errors for this two reasons:
* 1. It is possible to dd(1) a LIF image containing the bootloader
* and a kernel with attached RAM disk to disk and boot it. That way
* the netboot installation LIF image is also usable as disk boot
* image.
* 2. Some old 700 machines report a wrong device class in
* PAGE0->mem_boot.pz_class when net booting. (PCL_RANDOM instead
* PCL_NET_MASK|PCL_SEQU) So the bootloader thinks it is booting
* from disk when it is actually net booting. The net boot LIF image
* contains no disklabel so the test for the disklabel will fail.
* If the device open fails if there is no disklabel we are not able
* to netboot those machines.
* Therefore the error is ignored. The bootloader will fall back to
* LIF later when there is no disklabel / FFS partition.
* At the moment it doesn't matter that the wrong device type ("dk"
* instead "lf") is used, as all I/O is abstracted by the firmware.
* To get the correct device type it would be necessary to add a
* quirk table to the switch() in dev_hppa.c:devboot().
*/
} else {
i = B_PARTITION(dp->bootdev);
#ifdef DEBUG
if (debug)
printf("bootdev 0x%x, partition %u\n", dp->bootdev, i);
#endif
if (i >= dkl.d_npartitions || !dkl.d_partitions[i].p_size) {
return (EPART);
}
dp->part_off = dkl.d_partitions[i].p_offset * dkl.d_secsize;
}
#ifdef DEBUGBUG
if (debug)
printf ("dkopen() ret\n");
#endif
return (0);
}