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DA (scsi) and AD (ata) diskdrivers:

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Make the dump routine do just writing of data.
This commit is contained in:
Poul-Henning Kamp 2002-03-31 22:28:03 +00:00
parent d503fad022
commit 700146fa73
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=93493
1 changed files with 10 additions and 48 deletions
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58
sys/cam/scsi/scsi_da.c
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@ -781,58 +781,27 @@ daioctl(dev_t dev, u_long cmd, caddr_t addr, int flag, struct thread *td)
}
static int
dadump(dev_t dev)
dadump(dev_t dev, void *virtual, vm_offset_t physical, off_t offset, size_t length)
{
struct cam_periph *periph;
struct da_softc *softc;
u_int unit;
u_int part;
u_int secsize;
u_int num; /* number of sectors to write */
u_int blknum;
long blkcnt;
vm_offset_t addr;
struct ccb_scsiio csio;
int dumppages = MAXDUMPPGS;
int error;
int i;
/* toss any characters present prior to dump */
while (cncheckc() != -1)
;
unit = dkunit(dev);
part = dkpart(dev);
periph = cam_extend_get(daperiphs, unit);
if (periph == NULL) {
if (periph == NULL)
return (ENXIO);
}
softc = (struct da_softc *)periph->softc;
secsize = softc->params.secsize;
if ((softc->flags & DA_FLAG_PACK_INVALID) != 0)
return (ENXIO);
error = disk_dumpcheck(dev, &num, &blknum, &secsize);
if (error)
return (error);
addr = 0; /* starting address */
blkcnt = howmany(PAGE_SIZE, secsize);
while (num > 0) {
caddr_t va = NULL;
if ((num / blkcnt) < dumppages)
dumppages = num / blkcnt;
for (i = 0; i < dumppages; ++i) {
vm_offset_t a = addr + (i * PAGE_SIZE);
if (is_physical_memory(a))
va = pmap_kenter_temporary(trunc_page(a), i);
else
va = pmap_kenter_temporary(trunc_page(0), i);
}
if (length > 0) {
xpt_setup_ccb(&csio.ccb_h, periph->path, /*priority*/1);
csio.ccb_h.ccb_state = DA_CCB_DUMP;
scsi_read_write(&csio,
@ -842,10 +811,10 @@ dadump(dev_t dev)
/*read*/FALSE,
/*byte2*/0,
/*minimum_cmd_size*/ softc->minimum_cmd_size,
blknum,
blkcnt * dumppages,
/*data_ptr*/(u_int8_t *) va,
/*dxfer_len*/blkcnt * secsize * dumppages,
offset / secsize,
length / secsize,
/*data_ptr*/(u_int8_t *) virtual,
/*dxfer_len*/length,
/*sense_len*/SSD_FULL_SIZE,
DA_DEFAULT_TIMEOUT * 1000);
xpt_polled_action((union ccb *)&csio);
@ -860,16 +829,9 @@ dadump(dev_t dev)
csio.ccb_h.status, csio.scsi_status);
return(EIO);
}
return(0);
}
if (dumpstatus(addr, (off_t)num * softc->params.secsize) < 0)
return (EINTR);
/* update block count */
num -= blkcnt * dumppages;
blknum += blkcnt * dumppages;
addr += PAGE_SIZE * dumppages;
}
/*
* Sync the disk cache contents to the physical media.
*/