apply my patch to support non-512K sector disks (at least, upto 16KB

sector disks..)  from my tech-kern post:


the following patch let's me access both 512 byte and 4K
sector disks at the same time, as long as they are in
separate raids.  the existing rf code assumes/enforces
this part, i just made it support other sets concurrently.

the main change is moving the parity bitmap to the sector
after the component label sector(s), instead of being
immediately after the label, which meant it was on the same
sector as the label for >1024 byte devices.

i'm a little annoyed at having to add a 2nd call to
getdisksize() to enable auto-configure to work, but i
don't see another way that wasn't much uglier.
This commit is contained in:
mrg 2010-12-04 10:01:16 +00:00
parent 91118529e4
commit 1812d0a239
2 changed files with 120 additions and 47 deletions

View File

@ -1,4 +1,4 @@
/* $NetBSD: rf_disks.c,v 1.75 2010/11/19 06:44:40 dholland Exp $ */
/* $NetBSD: rf_disks.c,v 1.76 2010/12/04 10:01:16 mrg Exp $ */
/*-
* Copyright (c) 1999 The NetBSD Foundation, Inc.
* All rights reserved.
@ -60,7 +60,7 @@
***************************************************************/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rf_disks.c,v 1.75 2010/11/19 06:44:40 dholland Exp $");
__KERNEL_RCSID(0, "$NetBSD: rf_disks.c,v 1.76 2010/12/04 10:01:16 mrg Exp $");
#include <dev/raidframe/raidframevar.h>
@ -608,16 +608,26 @@ rf_ConfigureDisk(RF_Raid_t *raidPtr, char *bf, RF_RaidDisk_t *diskPtr,
if (error == ENXIO) {
/* the component isn't there... must be dead :-( */
diskPtr->status = rf_ds_failed;
return 0;
} else {
return (error);
}
}
if (diskPtr->status == rf_ds_optimal) {
if ((error = rf_getdisksize(vp, curlwp, diskPtr)) != 0)
return (error);
/*
* If this raidPtr's bytesPerSector is zero, fill it in with this
* components blockSize. This will give us something to work with
* initially, and if it is wrong, we'll get errors later.
*/
if (raidPtr->bytesPerSector == 0)
raidPtr->bytesPerSector = diskPtr->blockSize;
if (diskPtr->status == rf_ds_optimal) {
if ((error = VOP_GETATTR(vp, &va, curlwp->l_cred)) != 0)
return (error);
if ((error = rf_getdisksize(vp, curlwp, diskPtr)) != 0)
return (error);
raidPtr->raid_cinfo[col].ci_vp = vp;
raidPtr->raid_cinfo[col].ci_dev = va.va_rdev;

View File

@ -1,4 +1,4 @@
/* $NetBSD: rf_netbsdkintf.c,v 1.275 2010/11/01 02:35:25 mrg Exp $ */
/* $NetBSD: rf_netbsdkintf.c,v 1.276 2010/12/04 10:01:16 mrg Exp $ */
/*-
* Copyright (c) 1996, 1997, 1998, 2008 The NetBSD Foundation, Inc.
* All rights reserved.
@ -139,7 +139,7 @@
***********************************************************/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: rf_netbsdkintf.c,v 1.275 2010/11/01 02:35:25 mrg Exp $");
__KERNEL_RCSID(0, "$NetBSD: rf_netbsdkintf.c,v 1.276 2010/12/04 10:01:16 mrg Exp $");
#ifdef _KERNEL_OPT
#include "opt_compat_netbsd.h"
@ -227,10 +227,10 @@ static int raidread_component_area(dev_t, struct vnode *, void *, size_t,
static int raidwrite_component_area(dev_t, struct vnode *, void *, size_t,
daddr_t, daddr_t, int);
static int raidwrite_component_label(dev_t, struct vnode *,
RF_ComponentLabel_t *);
static int raidread_component_label(dev_t, struct vnode *,
RF_ComponentLabel_t *);
static int raidwrite_component_label(unsigned,
dev_t, struct vnode *, RF_ComponentLabel_t *);
static int raidread_component_label(unsigned,
dev_t, struct vnode *, RF_ComponentLabel_t *);
dev_type_open(raidopen);
@ -1033,8 +1033,8 @@ raidioctl(dev_t dev, u_long cmd, void *data, int flag, struct lwp *l)
rs = &raid_softc[unit];
raidPtr = raidPtrs[unit];
db1_printf(("raidioctl: %d %d %d %d\n", (int) dev,
(int) DISKPART(dev), (int) unit, (int) cmd));
db1_printf(("raidioctl: %d %d %d %lu\n", (int) dev,
(int) DISKPART(dev), (int) unit, cmd));
/* Must be open for writes for these commands... */
switch (cmd) {
@ -2441,10 +2441,57 @@ raidunlock(struct raid_softc *rs)
#define RF_COMPONENT_INFO_OFFSET 16384 /* bytes */
#define RF_COMPONENT_INFO_SIZE 1024 /* bytes */
#define RF_PARITY_MAP_OFFSET \
(RF_COMPONENT_INFO_OFFSET + RF_COMPONENT_INFO_SIZE)
#define RF_PARITY_MAP_SIZE RF_PARITYMAP_NBYTE
static daddr_t
rf_component_info_offset(void)
{
return RF_COMPONENT_INFO_OFFSET;
}
static daddr_t
rf_component_info_size(unsigned secsize)
{
daddr_t info_size;
KASSERT(secsize);
if (secsize > RF_COMPONENT_INFO_SIZE)
info_size = secsize;
else
info_size = RF_COMPONENT_INFO_SIZE;
return info_size;
}
static daddr_t
rf_parity_map_offset(RF_Raid_t *raidPtr)
{
daddr_t map_offset;
KASSERT(raidPtr->bytesPerSector);
if (raidPtr->bytesPerSector > RF_COMPONENT_INFO_SIZE)
map_offset = raidPtr->bytesPerSector;
else
map_offset = RF_COMPONENT_INFO_SIZE;
map_offset += rf_component_info_offset();
return map_offset;
}
static daddr_t
rf_parity_map_size(RF_Raid_t *raidPtr)
{
daddr_t map_size;
if (raidPtr->bytesPerSector > RF_PARITY_MAP_SIZE)
map_size = raidPtr->bytesPerSector;
else
map_size = RF_PARITY_MAP_SIZE;
return map_size;
}
int
raidmarkclean(RF_Raid_t *raidPtr, RF_RowCol_t col)
{
@ -2471,7 +2518,9 @@ raidmarkdirty(RF_Raid_t *raidPtr, RF_RowCol_t col)
int
raidfetch_component_label(RF_Raid_t *raidPtr, RF_RowCol_t col)
{
return raidread_component_label(raidPtr->Disks[col].dev,
KASSERT(raidPtr->bytesPerSector);
return raidread_component_label(raidPtr->bytesPerSector,
raidPtr->Disks[col].dev,
raidPtr->raid_cinfo[col].ci_vp,
&raidPtr->raid_cinfo[col].ci_label);
}
@ -2492,18 +2541,20 @@ raidflush_component_label(RF_Raid_t *raidPtr, RF_RowCol_t col)
#ifndef RF_NO_PARITY_MAP
label->parity_map_modcount = label->mod_counter;
#endif
return raidwrite_component_label(raidPtr->Disks[col].dev,
return raidwrite_component_label(raidPtr->bytesPerSector,
raidPtr->Disks[col].dev,
raidPtr->raid_cinfo[col].ci_vp, label);
}
static int
raidread_component_label(dev_t dev, struct vnode *b_vp,
raidread_component_label(unsigned secsize, dev_t dev, struct vnode *b_vp,
RF_ComponentLabel_t *clabel)
{
return raidread_component_area(dev, b_vp, clabel,
sizeof(RF_ComponentLabel_t),
RF_COMPONENT_INFO_OFFSET, RF_COMPONENT_INFO_SIZE);
rf_component_info_offset(),
rf_component_info_size(secsize));
}
/* ARGSUSED */
@ -2551,12 +2602,13 @@ raidread_component_area(dev_t dev, struct vnode *b_vp, void *data,
static int
raidwrite_component_label(dev_t dev, struct vnode *b_vp,
RF_ComponentLabel_t *clabel)
raidwrite_component_label(unsigned secsize, dev_t dev, struct vnode *b_vp,
RF_ComponentLabel_t *clabel)
{
return raidwrite_component_area(dev, b_vp, clabel,
sizeof(RF_ComponentLabel_t),
RF_COMPONENT_INFO_OFFSET, RF_COMPONENT_INFO_SIZE, 0);
rf_component_info_offset(),
rf_component_info_size(secsize), 0);
}
/* ARGSUSED */
@ -2611,7 +2663,8 @@ rf_paritymap_kern_write(RF_Raid_t *raidPtr, struct rf_paritymap_ondisk *map)
raidwrite_component_area(raidPtr->Disks[c].dev,
raidPtr->raid_cinfo[c].ci_vp, map,
RF_PARITYMAP_NBYTE,
RF_PARITY_MAP_OFFSET, RF_PARITY_MAP_SIZE, 0);
rf_parity_map_offset(raidPtr),
rf_parity_map_size(raidPtr), 0);
}
}
@ -2629,7 +2682,8 @@ rf_paritymap_kern_read(RF_Raid_t *raidPtr, struct rf_paritymap_ondisk *map)
raidread_component_area(raidPtr->Disks[c].dev,
raidPtr->raid_cinfo[c].ci_vp, &tmp,
RF_PARITYMAP_NBYTE,
RF_PARITY_MAP_OFFSET, RF_PARITY_MAP_SIZE);
rf_parity_map_offset(raidPtr),
rf_parity_map_size(raidPtr));
if (first) {
memcpy(map, &tmp, sizeof(*map));
first = 0;
@ -2909,7 +2963,8 @@ rf_ReconstructInPlaceThread(struct rf_recon_req *req)
static RF_AutoConfig_t *
rf_get_component(RF_AutoConfig_t *ac_list, dev_t dev, struct vnode *vp,
const char *cname, RF_SectorCount_t size)
const char *cname, RF_SectorCount_t size, uint64_t numsecs,
unsigned secsize)
{
int good_one = 0;
RF_ComponentLabel_t *clabel;
@ -2929,30 +2984,30 @@ oomem:
return NULL; /* XXX probably should panic? */
}
if (!raidread_component_label(dev, vp, clabel)) {
/* Got the label. Does it look reasonable? */
if (rf_reasonable_label(clabel) &&
(clabel->partitionSize <= size)) {
if (!raidread_component_label(secsize, dev, vp, clabel)) {
/* Got the label. Does it look reasonable? */
if (rf_reasonable_label(clabel) &&
(clabel->partitionSize <= size)) {
#ifdef DEBUG
printf("Component on: %s: %llu\n",
printf("Component on: %s: %llu\n",
cname, (unsigned long long)size);
rf_print_component_label(clabel);
rf_print_component_label(clabel);
#endif
/* if it's reasonable, add it, else ignore it. */
ac = malloc(sizeof(RF_AutoConfig_t), M_RAIDFRAME,
/* if it's reasonable, add it, else ignore it. */
ac = malloc(sizeof(RF_AutoConfig_t), M_RAIDFRAME,
M_NOWAIT);
if (ac == NULL) {
free(clabel, M_RAIDFRAME);
goto oomem;
}
strlcpy(ac->devname, cname, sizeof(ac->devname));
ac->dev = dev;
ac->vp = vp;
ac->clabel = clabel;
ac->next = ac_list;
ac_list = ac;
good_one = 1;
}
if (ac == NULL) {
free(clabel, M_RAIDFRAME);
goto oomem;
}
strlcpy(ac->devname, cname, sizeof(ac->devname));
ac->dev = dev;
ac->vp = vp;
ac->clabel = clabel;
ac->next = ac_list;
ac_list = ac;
good_one = 1;
}
}
if (!good_one) {
/* cleanup */
@ -2976,7 +3031,10 @@ rf_find_raid_components(void)
int error;
int i;
RF_AutoConfig_t *ac_list;
uint64_t numsecs;
unsigned secsize;
RF_ASSERT(raidPtr->bytesPerSector < rf_component_info_offset());
/* initialize the AutoConfig list */
ac_list = NULL;
@ -3036,6 +3094,11 @@ rf_find_raid_components(void)
continue;
}
error = getdisksize(vp, &numsecs, &secsize);
if (error) {
vput(vp);
continue;
}
if (wedge) {
struct dkwedge_info dkw;
error = VOP_IOCTL(vp, DIOCGWEDGEINFO, &dkw, FREAD,
@ -3057,7 +3120,7 @@ rf_find_raid_components(void)
}
ac_list = rf_get_component(ac_list, dev, vp,
device_xname(dv), dkw.dkw_size);
device_xname(dv), dkw.dkw_size, numsecs, secsize);
continue;
}
@ -3102,7 +3165,7 @@ rf_find_raid_components(void)
snprintf(cname, sizeof(cname), "%s%c",
device_xname(dv), 'a' + i);
ac_list = rf_get_component(ac_list, dev, vp, cname,
label.d_partitions[i].p_size);
label.d_partitions[i].p_size, numsecs, secsize);
}
}
deviter_release(&di);