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freebsd-dev/sys/geom/raid/md_ddf.c
Alexander Motin 57eed4a86f Fix vdc->Secondary_Element_Count metadata field access from 16 to 8 bit. 
In some cases it could cause kernel panic during failed drive replacement.

Reported by:	trasz
MFC after:	1 week
2013-05-20 00:33:54 +00:00

3063 lines
89 KiB
C
Raw Blame History

/*-
* Copyright (c) 2012 Alexander Motin <mav@FreeBSD.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHORS AND CONTRIBUTORS ``AS IS'' AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/cdefs.h>
__FBSDID("$FreeBSD$");
#include <sys/param.h>
#include <sys/bio.h>
#include <sys/endian.h>
#include <sys/kernel.h>
#include <sys/kobj.h>
#include <sys/limits.h>
#include <sys/lock.h>
#include <sys/malloc.h>
#include <sys/mutex.h>
#include <sys/systm.h>
#include <sys/time.h>
#include <sys/clock.h>
#include <geom/geom.h>
#include "geom/raid/g_raid.h"
#include "geom/raid/md_ddf.h"
#include "g_raid_md_if.h"
static MALLOC_DEFINE(M_MD_DDF, "md_ddf_data", "GEOM_RAID DDF metadata");
#define DDF_MAX_DISKS_HARD 128
#define DDF_MAX_DISKS 16
#define DDF_MAX_VDISKS 7
#define DDF_MAX_PARTITIONS 1
#define DECADE (3600*24*(365*10+2)) /* 10 years in seconds. */
struct ddf_meta {
u_int sectorsize;
u_int bigendian;
struct ddf_header *hdr;
struct ddf_cd_record *cdr;
struct ddf_pd_record *pdr;
struct ddf_vd_record *vdr;
void *cr;
struct ddf_pdd_record *pdd;
struct ddf_bbm_log *bbm;
};
struct ddf_vol_meta {
u_int sectorsize;
u_int bigendian;
struct ddf_header *hdr;
struct ddf_cd_record *cdr;
struct ddf_vd_entry *vde;
struct ddf_vdc_record *vdc;
struct ddf_vdc_record *bvdc[DDF_MAX_DISKS_HARD];
};
struct g_raid_md_ddf_perdisk {
struct ddf_meta pd_meta;
};
struct g_raid_md_ddf_pervolume {
struct ddf_vol_meta pv_meta;
int pv_started;
struct callout pv_start_co; /* STARTING state timer. */
};
struct g_raid_md_ddf_object {
struct g_raid_md_object mdio_base;
u_int mdio_bigendian;
struct ddf_meta mdio_meta;
int mdio_starting;
struct callout mdio_start_co; /* STARTING state timer. */
int mdio_started;
struct root_hold_token *mdio_rootmount; /* Root mount delay token. */
};
static g_raid_md_create_req_t g_raid_md_create_req_ddf;
static g_raid_md_taste_t g_raid_md_taste_ddf;
static g_raid_md_event_t g_raid_md_event_ddf;
static g_raid_md_volume_event_t g_raid_md_volume_event_ddf;
static g_raid_md_ctl_t g_raid_md_ctl_ddf;
static g_raid_md_write_t g_raid_md_write_ddf;
static g_raid_md_fail_disk_t g_raid_md_fail_disk_ddf;
static g_raid_md_free_disk_t g_raid_md_free_disk_ddf;
static g_raid_md_free_volume_t g_raid_md_free_volume_ddf;
static g_raid_md_free_t g_raid_md_free_ddf;
static kobj_method_t g_raid_md_ddf_methods[] = {
KOBJMETHOD(g_raid_md_create_req, g_raid_md_create_req_ddf),
KOBJMETHOD(g_raid_md_taste, g_raid_md_taste_ddf),
KOBJMETHOD(g_raid_md_event, g_raid_md_event_ddf),
KOBJMETHOD(g_raid_md_volume_event, g_raid_md_volume_event_ddf),
KOBJMETHOD(g_raid_md_ctl, g_raid_md_ctl_ddf),
KOBJMETHOD(g_raid_md_write, g_raid_md_write_ddf),
KOBJMETHOD(g_raid_md_fail_disk, g_raid_md_fail_disk_ddf),
KOBJMETHOD(g_raid_md_free_disk, g_raid_md_free_disk_ddf),
KOBJMETHOD(g_raid_md_free_volume, g_raid_md_free_volume_ddf),
KOBJMETHOD(g_raid_md_free, g_raid_md_free_ddf),
{ 0, 0 }
};
static struct g_raid_md_class g_raid_md_ddf_class = {
"DDF",
g_raid_md_ddf_methods,
sizeof(struct g_raid_md_ddf_object),
.mdc_enable = 1,
.mdc_priority = 100
};
#define GET8(m, f) ((m)->f)
#define GET16(m, f) ((m)->bigendian ? be16dec(&(m)->f) : le16dec(&(m)->f))
#define GET32(m, f) ((m)->bigendian ? be32dec(&(m)->f) : le32dec(&(m)->f))
#define GET64(m, f) ((m)->bigendian ? be64dec(&(m)->f) : le64dec(&(m)->f))
#define GET8D(m, f) (f)
#define GET16D(m, f) ((m)->bigendian ? be16dec(&f) : le16dec(&f))
#define GET32D(m, f) ((m)->bigendian ? be32dec(&f) : le32dec(&f))
#define GET64D(m, f) ((m)->bigendian ? be64dec(&f) : le64dec(&f))
#define GET8P(m, f) (*(f))
#define GET16P(m, f) ((m)->bigendian ? be16dec(f) : le16dec(f))
#define GET32P(m, f) ((m)->bigendian ? be32dec(f) : le32dec(f))
#define GET64P(m, f) ((m)->bigendian ? be64dec(f) : le64dec(f))
#define SET8P(m, f, v) \
(*(f) = (v))
#define SET16P(m, f, v) \
do { \
if ((m)->bigendian) \
be16enc((f), (v)); \
else \
le16enc((f), (v)); \
} while (0)
#define SET32P(m, f, v) \
do { \
if ((m)->bigendian) \
be32enc((f), (v)); \
else \
le32enc((f), (v)); \
} while (0)
#define SET64P(m, f, v) \
do { \
if ((m)->bigendian) \
be64enc((f), (v)); \
else \
le64enc((f), (v)); \
} while (0)
#define SET8(m, f, v) SET8P((m), &((m)->f), (v))
#define SET16(m, f, v) SET16P((m), &((m)->f), (v))
#define SET32(m, f, v) SET32P((m), &((m)->f), (v))
#define SET64(m, f, v) SET64P((m), &((m)->f), (v))
#define SET8D(m, f, v) SET8P((m), &(f), (v))
#define SET16D(m, f, v) SET16P((m), &(f), (v))
#define SET32D(m, f, v) SET32P((m), &(f), (v))
#define SET64D(m, f, v) SET64P((m), &(f), (v))
#define GETCRNUM(m) (GET32((m), hdr->cr_length) / \
GET16((m), hdr->Configuration_Record_Length))
#define GETVDCPTR(m, n) ((struct ddf_vdc_record *)((uint8_t *)(m)->cr + \
(n) * GET16((m), hdr->Configuration_Record_Length) * \
(m)->sectorsize))
#define GETSAPTR(m, n) ((struct ddf_sa_record *)((uint8_t *)(m)->cr + \
(n) * GET16((m), hdr->Configuration_Record_Length) * \
(m)->sectorsize))
static int
isff(uint8_t *buf, int size)
{
int i;
for (i = 0; i < size; i++)
if (buf[i] != 0xff)
return (0);
return (1);
}
static void
print_guid(uint8_t *buf)
{
int i, ascii;
ascii = 1;
for (i = 0; i < 24; i++) {
if (buf[i] != 0 && (buf[i] < ' ' || buf[i] > 127)) {
ascii = 0;
break;
}
}
if (ascii) {
printf("'%.24s'", buf);
} else {
for (i = 0; i < 24; i++)
printf("%02x", buf[i]);
}
}
static void
g_raid_md_ddf_print(struct ddf_meta *meta)
{
struct ddf_vdc_record *vdc;
struct ddf_vuc_record *vuc;
struct ddf_sa_record *sa;
uint64_t *val2;
uint32_t val;
int i, j, k, num, num2;
if (g_raid_debug < 1)
return;
printf("********* DDF Metadata *********\n");
printf("**** Header ****\n");
printf("DDF_Header_GUID ");
print_guid(meta->hdr->DDF_Header_GUID);
printf("\n");
printf("DDF_rev %8.8s\n", (char *)&meta->hdr->DDF_rev[0]);
printf("Sequence_Number 0x%08x\n", GET32(meta, hdr->Sequence_Number));
printf("TimeStamp 0x%08x\n", GET32(meta, hdr->TimeStamp));
printf("Open_Flag 0x%02x\n", GET16(meta, hdr->Open_Flag));
printf("Foreign_Flag 0x%02x\n", GET16(meta, hdr->Foreign_Flag));
printf("Diskgrouping 0x%02x\n", GET16(meta, hdr->Diskgrouping));
printf("Primary_Header_LBA %ju\n", GET64(meta, hdr->Primary_Header_LBA));
printf("Secondary_Header_LBA %ju\n", GET64(meta, hdr->Secondary_Header_LBA));
printf("WorkSpace_Length %u\n", GET32(meta, hdr->WorkSpace_Length));
printf("WorkSpace_LBA %ju\n", GET64(meta, hdr->WorkSpace_LBA));
printf("Max_PD_Entries %u\n", GET16(meta, hdr->Max_PD_Entries));
printf("Max_VD_Entries %u\n", GET16(meta, hdr->Max_VD_Entries));
printf("Max_Partitions %u\n", GET16(meta, hdr->Max_Partitions));
printf("Configuration_Record_Length %u\n", GET16(meta, hdr->Configuration_Record_Length));
printf("Max_Primary_Element_Entries %u\n", GET16(meta, hdr->Max_Primary_Element_Entries));
printf("Controller Data %u:%u\n", GET32(meta, hdr->cd_section), GET32(meta, hdr->cd_length));
printf("Physical Disk %u:%u\n", GET32(meta, hdr->pdr_section), GET32(meta, hdr->pdr_length));
printf("Virtual Disk %u:%u\n", GET32(meta, hdr->vdr_section), GET32(meta, hdr->vdr_length));
printf("Configuration Recs %u:%u\n", GET32(meta, hdr->cr_section), GET32(meta, hdr->cr_length));
printf("Physical Disk Recs %u:%u\n", GET32(meta, hdr->pdd_section), GET32(meta, hdr->pdd_length));
printf("BBM Log %u:%u\n", GET32(meta, hdr->bbmlog_section), GET32(meta, hdr->bbmlog_length));
printf("Diagnostic Space %u:%u\n", GET32(meta, hdr->Diagnostic_Space), GET32(meta, hdr->Diagnostic_Space_Length));
printf("Vendor_Specific_Logs %u:%u\n", GET32(meta, hdr->Vendor_Specific_Logs), GET32(meta, hdr->Vendor_Specific_Logs_Length));
printf("**** Controler Data ****\n");
printf("Controller_GUID ");
print_guid(meta->cdr->Controller_GUID);
printf("\n");
printf("Controller_Type 0x%04x%04x 0x%04x%04x\n",
GET16(meta, cdr->Controller_Type.Vendor_ID),
GET16(meta, cdr->Controller_Type.Device_ID),
GET16(meta, cdr->Controller_Type.SubVendor_ID),
GET16(meta, cdr->Controller_Type.SubDevice_ID));
printf("Product_ID '%.16s'\n", (char *)&meta->cdr->Product_ID[0]);
printf("**** Physical Disk Records ****\n");
printf("Populated_PDEs %u\n", GET16(meta, pdr->Populated_PDEs));
printf("Max_PDE_Supported %u\n", GET16(meta, pdr->Max_PDE_Supported));
for (j = 0; j < GET16(meta, pdr->Populated_PDEs); j++) {
if (isff(meta->pdr->entry[j].PD_GUID, 24))
continue;
if (GET32(meta, pdr->entry[j].PD_Reference) == 0xffffffff)
continue;
printf("PD_GUID ");
print_guid(meta->pdr->entry[j].PD_GUID);
printf("\n");
printf("PD_Reference 0x%08x\n",
GET32(meta, pdr->entry[j].PD_Reference));
printf("PD_Type 0x%04x\n",
GET16(meta, pdr->entry[j].PD_Type));
printf("PD_State 0x%04x\n",
GET16(meta, pdr->entry[j].PD_State));
printf("Configured_Size %ju\n",
GET64(meta, pdr->entry[j].Configured_Size));
printf("Block_Size %u\n",
GET16(meta, pdr->entry[j].Block_Size));
}
printf("**** Virtual Disk Records ****\n");
printf("Populated_VDEs %u\n", GET16(meta, vdr->Populated_VDEs));
printf("Max_VDE_Supported %u\n", GET16(meta, vdr->Max_VDE_Supported));
for (j = 0; j < GET16(meta, vdr->Populated_VDEs); j++) {
if (isff(meta->vdr->entry[j].VD_GUID, 24))
continue;
printf("VD_GUID ");
print_guid(meta->vdr->entry[j].VD_GUID);
printf("\n");
printf("VD_Number 0x%04x\n",
GET16(meta, vdr->entry[j].VD_Number));
printf("VD_Type 0x%04x\n",
GET16(meta, vdr->entry[j].VD_Type));
printf("VD_State 0x%02x\n",
GET8(meta, vdr->entry[j].VD_State));
printf("Init_State 0x%02x\n",
GET8(meta, vdr->entry[j].Init_State));
printf("Drive_Failures_Remaining %u\n",
GET8(meta, vdr->entry[j].Drive_Failures_Remaining));
printf("VD_Name '%.16s'\n",
(char *)&meta->vdr->entry[j].VD_Name);
}
printf("**** Configuration Records ****\n");
num = GETCRNUM(meta);
for (j = 0; j < num; j++) {
vdc = GETVDCPTR(meta, j);
val = GET32D(meta, vdc->Signature);
switch (val) {
case DDF_VDCR_SIGNATURE:
printf("** Virtual Disk Configuration **\n");
printf("VD_GUID ");
print_guid(vdc->VD_GUID);
printf("\n");
printf("Timestamp 0x%08x\n",
GET32D(meta, vdc->Timestamp));
printf("Sequence_Number 0x%08x\n",
GET32D(meta, vdc->Sequence_Number));
printf("Primary_Element_Count %u\n",
GET16D(meta, vdc->Primary_Element_Count));
printf("Stripe_Size %u\n",
GET8D(meta, vdc->Stripe_Size));
printf("Primary_RAID_Level 0x%02x\n",
GET8D(meta, vdc->Primary_RAID_Level));
printf("RLQ 0x%02x\n",
GET8D(meta, vdc->RLQ));
printf("Secondary_Element_Count %u\n",
GET8D(meta, vdc->Secondary_Element_Count));
printf("Secondary_Element_Seq %u\n",
GET8D(meta, vdc->Secondary_Element_Seq));
printf("Secondary_RAID_Level 0x%02x\n",
GET8D(meta, vdc->Secondary_RAID_Level));
printf("Block_Count %ju\n",
GET64D(meta, vdc->Block_Count));
printf("VD_Size %ju\n",
GET64D(meta, vdc->VD_Size));
printf("Block_Size %u\n",
GET16D(meta, vdc->Block_Size));
printf("Rotate_Parity_count %u\n",
GET8D(meta, vdc->Rotate_Parity_count));
printf("Associated_Spare_Disks");
for (i = 0; i < 8; i++) {
if (GET32D(meta, vdc->Associated_Spares[i]) != 0xffffffff)
printf(" 0x%08x", GET32D(meta, vdc->Associated_Spares[i]));
}
printf("\n");
printf("Cache_Flags %016jx\n",
GET64D(meta, vdc->Cache_Flags));
printf("BG_Rate %u\n",
GET8D(meta, vdc->BG_Rate));
printf("MDF_Parity_Disks %u\n",
GET8D(meta, vdc->MDF_Parity_Disks));
printf("MDF_Parity_Generator_Polynomial 0x%04x\n",
GET16D(meta, vdc->MDF_Parity_Generator_Polynomial));
printf("MDF_Constant_Generation_Method 0x%02x\n",
GET8D(meta, vdc->MDF_Constant_Generation_Method));
printf("Physical_Disks ");
num2 = GET16D(meta, vdc->Primary_Element_Count);
val2 = (uint64_t *)&(vdc->Physical_Disk_Sequence[GET16(meta, hdr->Max_Primary_Element_Entries)]);
for (i = 0; i < num2; i++)
printf(" 0x%08x @ %ju",
GET32D(meta, vdc->Physical_Disk_Sequence[i]),
GET64P(meta, val2 + i));
printf("\n");
break;
case DDF_VUCR_SIGNATURE:
printf("** Vendor Unique Configuration **\n");
vuc = (struct ddf_vuc_record *)vdc;
printf("VD_GUID ");
print_guid(vuc->VD_GUID);
printf("\n");
break;
case DDF_SA_SIGNATURE:
printf("** Spare Assignment Configuration **\n");
sa = (struct ddf_sa_record *)vdc;
printf("Timestamp 0x%08x\n",
GET32D(meta, sa->Timestamp));
printf("Spare_Type 0x%02x\n",
GET8D(meta, sa->Spare_Type));
printf("Populated_SAEs %u\n",
GET16D(meta, sa->Populated_SAEs));
printf("MAX_SAE_Supported %u\n",
GET16D(meta, sa->MAX_SAE_Supported));
for (i = 0; i < GET16D(meta, sa->Populated_SAEs); i++) {
if (isff(sa->entry[i].VD_GUID, 24))
continue;
printf("VD_GUID ");
for (k = 0; k < 24; k++)
printf("%02x", sa->entry[i].VD_GUID[k]);
printf("\n");
printf("Secondary_Element %u\n",
GET16D(meta, sa->entry[i].Secondary_Element));
}
break;
case 0x00000000:
case 0xFFFFFFFF:
break;
default:
printf("Unknown configuration signature %08x\n", val);
break;
}
}
printf("**** Physical Disk Data ****\n");
printf("PD_GUID ");
print_guid(meta->pdd->PD_GUID);
printf("\n");
printf("PD_Reference 0x%08x\n",
GET32(meta, pdd->PD_Reference));
printf("Forced_Ref_Flag 0x%02x\n",
GET8(meta, pdd->Forced_Ref_Flag));
printf("Forced_PD_GUID_Flag 0x%02x\n",
GET8(meta, pdd->Forced_PD_GUID_Flag));
}
static int
ddf_meta_find_pd(struct ddf_meta *meta, uint8_t *GUID, uint32_t PD_Reference)
{
int i;
for (i = 0; i < GET16(meta, pdr->Populated_PDEs); i++) {
if (GUID != NULL) {
if (memcmp(meta->pdr->entry[i].PD_GUID, GUID, 24) == 0)
return (i);
} else if (PD_Reference != 0xffffffff) {
if (GET32(meta, pdr->entry[i].PD_Reference) == PD_Reference)
return (i);
} else
if (isff(meta->pdr->entry[i].PD_GUID, 24))
return (i);
}
if (GUID == NULL && PD_Reference == 0xffffffff) {
if (i >= GET16(meta, pdr->Max_PDE_Supported))
return (-1);
SET16(meta, pdr->Populated_PDEs, i + 1);
return (i);
}
return (-1);
}
static int
ddf_meta_find_vd(struct ddf_meta *meta, uint8_t *GUID)
{
int i;
for (i = 0; i < GET16(meta, vdr->Populated_VDEs); i++) {
if (GUID != NULL) {
if (memcmp(meta->vdr->entry[i].VD_GUID, GUID, 24) == 0)
return (i);
} else
if (isff(meta->vdr->entry[i].VD_GUID, 24))
return (i);
}
if (GUID == NULL) {
if (i >= GET16(meta, vdr->Max_VDE_Supported))
return (-1);
SET16(meta, vdr->Populated_VDEs, i + 1);
return (i);
}
return (-1);
}
static struct ddf_vdc_record *
ddf_meta_find_vdc(struct ddf_meta *meta, uint8_t *GUID)
{
struct ddf_vdc_record *vdc;
int i, num;
num = GETCRNUM(meta);
for (i = 0; i < num; i++) {
vdc = GETVDCPTR(meta, i);
if (GUID != NULL) {
if (GET32D(meta, vdc->Signature) == DDF_VDCR_SIGNATURE &&
memcmp(vdc->VD_GUID, GUID, 24) == 0)
return (vdc);
} else
if (GET32D(meta, vdc->Signature) == 0xffffffff ||
GET32D(meta, vdc->Signature) == 0)
return (vdc);
}
return (NULL);
}
static int
ddf_meta_count_vdc(struct ddf_meta *meta, uint8_t *GUID)
{
struct ddf_vdc_record *vdc;
int i, num, cnt;
cnt = 0;
num = GETCRNUM(meta);
for (i = 0; i < num; i++) {
vdc = GETVDCPTR(meta, i);
if (GET32D(meta, vdc->Signature) != DDF_VDCR_SIGNATURE)
continue;
if (GUID == NULL || memcmp(vdc->VD_GUID, GUID, 24) == 0)
cnt++;
}
return (cnt);
}
static int
ddf_meta_find_disk(struct ddf_vol_meta *vmeta, uint32_t PD_Reference,
int *bvdp, int *posp)
{
int i, bvd, pos;
i = 0;
for (bvd = 0; bvd < GET8(vmeta, vdc->Secondary_Element_Count); bvd++) {
if (vmeta->bvdc[bvd] == NULL) {
i += GET16(vmeta, vdc->Primary_Element_Count); // XXX
continue;
}
for (pos = 0; pos < GET16(vmeta, bvdc[bvd]->Primary_Element_Count);
pos++, i++) {
if (GET32(vmeta, bvdc[bvd]->Physical_Disk_Sequence[pos]) ==
PD_Reference) {
if (bvdp != NULL)
*bvdp = bvd;
if (posp != NULL)
*posp = pos;
return (i);
}
}
}
return (-1);
}
static struct ddf_sa_record *
ddf_meta_find_sa(struct ddf_meta *meta, int create)
{
struct ddf_sa_record *sa;
int i, num;
num = GETCRNUM(meta);
for (i = 0; i < num; i++) {
sa = GETSAPTR(meta, i);
if (GET32D(meta, sa->Signature) == DDF_SA_SIGNATURE)
return (sa);
}
if (create) {
for (i = 0; i < num; i++) {
sa = GETSAPTR(meta, i);
if (GET32D(meta, sa->Signature) == 0xffffffff ||
GET32D(meta, sa->Signature) == 0)
return (sa);
}
}
return (NULL);
}
static void
ddf_meta_create(struct g_raid_disk *disk, struct ddf_meta *sample)
{
struct timespec ts;
struct clocktime ct;
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_md_ddf_object *mdi;
struct ddf_meta *meta;
struct ddf_pd_entry *pde;
off_t anchorlba;
u_int ss, pos, size;
int len, error;
char serial_buffer[24];
if (sample->hdr == NULL)
sample = NULL;
mdi = (struct g_raid_md_ddf_object *)disk->d_softc->sc_md;
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
meta = &pd->pd_meta;
ss = disk->d_consumer->provider->sectorsize;
anchorlba = disk->d_consumer->provider->mediasize / ss - 1;
meta->sectorsize = ss;
meta->bigendian = sample ? sample->bigendian : mdi->mdio_bigendian;
getnanotime(&ts);
clock_ts_to_ct(&ts, &ct);
/* Header */
meta->hdr = malloc(ss, M_MD_DDF, M_WAITOK);
memset(meta->hdr, 0xff, ss);
if (sample) {
memcpy(meta->hdr, sample->hdr, sizeof(struct ddf_header));
if (ss != sample->sectorsize) {
SET32(meta, hdr->WorkSpace_Length,
(GET32(sample, hdr->WorkSpace_Length) *
sample->sectorsize + ss - 1) / ss);
SET16(meta, hdr->Configuration_Record_Length,
(GET16(sample, hdr->Configuration_Record_Length) *
sample->sectorsize + ss - 1) / ss);
SET32(meta, hdr->cd_length,
(GET32(sample, hdr->cd_length) *
sample->sectorsize + ss - 1) / ss);
SET32(meta, hdr->pdr_length,
(GET32(sample, hdr->pdr_length) *
sample->sectorsize + ss - 1) / ss);
SET32(meta, hdr->vdr_length,
(GET32(sample, hdr->vdr_length) *
sample->sectorsize + ss - 1) / ss);
SET32(meta, hdr->cr_length,
(GET32(sample, hdr->cr_length) *
sample->sectorsize + ss - 1) / ss);
SET32(meta, hdr->pdd_length,
(GET32(sample, hdr->pdd_length) *
sample->sectorsize + ss - 1) / ss);
SET32(meta, hdr->bbmlog_length,
(GET32(sample, hdr->bbmlog_length) *
sample->sectorsize + ss - 1) / ss);
SET32(meta, hdr->Diagnostic_Space,
(GET32(sample, hdr->bbmlog_length) *
sample->sectorsize + ss - 1) / ss);
SET32(meta, hdr->Vendor_Specific_Logs,
(GET32(sample, hdr->bbmlog_length) *
sample->sectorsize + ss - 1) / ss);
}
} else {
SET32(meta, hdr->Signature, DDF_HEADER_SIGNATURE);
snprintf(meta->hdr->DDF_Header_GUID, 25, "FreeBSD %08x%08x",
(u_int)(ts.tv_sec - DECADE), arc4random());
memcpy(meta->hdr->DDF_rev, "02.00.00", 8);
SET32(meta, hdr->TimeStamp, (ts.tv_sec - DECADE));
SET32(meta, hdr->WorkSpace_Length, 16 * 1024 * 1024 / ss);
SET16(meta, hdr->Max_PD_Entries, DDF_MAX_DISKS - 1);
SET16(meta, hdr->Max_VD_Entries, DDF_MAX_VDISKS);
SET16(meta, hdr->Max_Partitions, DDF_MAX_PARTITIONS);
SET16(meta, hdr->Max_Primary_Element_Entries, DDF_MAX_DISKS);
SET16(meta, hdr->Configuration_Record_Length,
(sizeof(struct ddf_vdc_record) +
(4 + 8) * GET16(meta, hdr->Max_Primary_Element_Entries) +
ss - 1) / ss);
SET32(meta, hdr->cd_length,
(sizeof(struct ddf_cd_record) + ss - 1) / ss);
SET32(meta, hdr->pdr_length,
(sizeof(struct ddf_pd_record) +
sizeof(struct ddf_pd_entry) *
GET16(meta, hdr->Max_PD_Entries) + ss - 1) / ss);
SET32(meta, hdr->vdr_length,
(sizeof(struct ddf_vd_record) +
sizeof(struct ddf_vd_entry) *
GET16(meta, hdr->Max_VD_Entries) + ss - 1) / ss);
SET32(meta, hdr->cr_length,
GET16(meta, hdr->Configuration_Record_Length) *
(GET16(meta, hdr->Max_Partitions) + 1));
SET32(meta, hdr->pdd_length,
(sizeof(struct ddf_pdd_record) + ss - 1) / ss);
SET32(meta, hdr->bbmlog_length, 0);
SET32(meta, hdr->Diagnostic_Space_Length, 0);
SET32(meta, hdr->Vendor_Specific_Logs_Length, 0);
}
pos = 1;
SET32(meta, hdr->cd_section, pos);
pos += GET32(meta, hdr->cd_length);
SET32(meta, hdr->pdr_section, pos);
pos += GET32(meta, hdr->pdr_length);
SET32(meta, hdr->vdr_section, pos);
pos += GET32(meta, hdr->vdr_length);
SET32(meta, hdr->cr_section, pos);
pos += GET32(meta, hdr->cr_length);
SET32(meta, hdr->pdd_section, pos);
pos += GET32(meta, hdr->pdd_length);
SET32(meta, hdr->bbmlog_section,
GET32(meta, hdr->bbmlog_length) != 0 ? pos : 0xffffffff);
pos += GET32(meta, hdr->bbmlog_length);
SET32(meta, hdr->Diagnostic_Space,
GET32(meta, hdr->Diagnostic_Space_Length) != 0 ? pos : 0xffffffff);
pos += GET32(meta, hdr->Diagnostic_Space_Length);
SET32(meta, hdr->Vendor_Specific_Logs,
GET32(meta, hdr->Vendor_Specific_Logs_Length) != 0 ? pos : 0xffffffff);
pos += min(GET32(meta, hdr->Vendor_Specific_Logs_Length), 1);
SET64(meta, hdr->Primary_Header_LBA,
anchorlba - pos);
SET64(meta, hdr->Secondary_Header_LBA,
0xffffffffffffffffULL);
SET64(meta, hdr->WorkSpace_LBA,
anchorlba + 1 - 32 * 1024 * 1024 / ss);
/* Controller Data */
size = GET32(meta, hdr->cd_length) * ss;
meta->cdr = malloc(size, M_MD_DDF, M_WAITOK);
memset(meta->cdr, 0xff, size);
SET32(meta, cdr->Signature, DDF_CONTROLLER_DATA_SIGNATURE);
memcpy(meta->cdr->Controller_GUID, "FreeBSD GEOM RAID SERIAL", 24);
memcpy(meta->cdr->Product_ID, "FreeBSD GEOMRAID", 16);
/* Physical Drive Records. */
size = GET32(meta, hdr->pdr_length) * ss;
meta->pdr = malloc(size, M_MD_DDF, M_WAITOK);
memset(meta->pdr, 0xff, size);
SET32(meta, pdr->Signature, DDF_PDR_SIGNATURE);
SET16(meta, pdr->Populated_PDEs, 1);
SET16(meta, pdr->Max_PDE_Supported,
GET16(meta, hdr->Max_PD_Entries));
pde = &meta->pdr->entry[0];
len = sizeof(serial_buffer);
error = g_io_getattr("GEOM::ident", disk->d_consumer, &len, serial_buffer);
if (error == 0 && (len = strlen (serial_buffer)) >= 6 && len <= 20)
snprintf(pde->PD_GUID, 25, "DISK%20s", serial_buffer);
else
snprintf(pde->PD_GUID, 25, "DISK%04d%02d%02d%08x%04x",
ct.year, ct.mon, ct.day,
arc4random(), arc4random() & 0xffff);
SET32D(meta, pde->PD_Reference, arc4random());
SET16D(meta, pde->PD_Type, DDF_PDE_GUID_FORCE);
SET16D(meta, pde->PD_State, 0);
SET64D(meta, pde->Configured_Size,
anchorlba + 1 - 32 * 1024 * 1024 / ss);
SET16D(meta, pde->Block_Size, ss);
/* Virtual Drive Records. */
size = GET32(meta, hdr->vdr_length) * ss;
meta->vdr = malloc(size, M_MD_DDF, M_WAITOK);
memset(meta->vdr, 0xff, size);
SET32(meta, vdr->Signature, DDF_VD_RECORD_SIGNATURE);
SET32(meta, vdr->Populated_VDEs, 0);
SET16(meta, vdr->Max_VDE_Supported,
GET16(meta, hdr->Max_VD_Entries));
/* Configuration Records. */
size = GET32(meta, hdr->cr_length) * ss;
meta->cr = malloc(size, M_MD_DDF, M_WAITOK);
memset(meta->cr, 0xff, size);
/* Physical Disk Data. */
size = GET32(meta, hdr->pdd_length) * ss;
meta->pdd = malloc(size, M_MD_DDF, M_WAITOK);
memset(meta->pdd, 0xff, size);
SET32(meta, pdd->Signature, DDF_PDD_SIGNATURE);
memcpy(meta->pdd->PD_GUID, pde->PD_GUID, 24);
SET32(meta, pdd->PD_Reference, GET32D(meta, pde->PD_Reference));
SET8(meta, pdd->Forced_Ref_Flag, DDF_PDD_FORCED_REF);
SET8(meta, pdd->Forced_PD_GUID_Flag, DDF_PDD_FORCED_GUID);
/* Bad Block Management Log. */
if (GET32(meta, hdr->bbmlog_length) != 0) {
size = GET32(meta, hdr->bbmlog_length) * ss;
meta->bbm = malloc(size, M_MD_DDF, M_WAITOK);
memset(meta->bbm, 0xff, size);
SET32(meta, bbm->Signature, DDF_BBML_SIGNATURE);
SET32(meta, bbm->Entry_Count, 0);
SET32(meta, bbm->Spare_Block_Count, 0);
}
}
static void
ddf_meta_copy(struct ddf_meta *dst, struct ddf_meta *src)
{
struct ddf_header *hdr;
u_int ss;
hdr = src->hdr;
dst->bigendian = src->bigendian;
ss = dst->sectorsize = src->sectorsize;
dst->hdr = malloc(ss, M_MD_DDF, M_WAITOK);
memcpy(dst->hdr, src->hdr, ss);
dst->cdr = malloc(GET32(src, hdr->cd_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(dst->cdr, src->cdr, GET32(src, hdr->cd_length) * ss);
dst->pdr = malloc(GET32(src, hdr->pdr_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(dst->pdr, src->pdr, GET32(src, hdr->pdr_length) * ss);
dst->vdr = malloc(GET32(src, hdr->vdr_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(dst->vdr, src->vdr, GET32(src, hdr->vdr_length) * ss);
dst->cr = malloc(GET32(src, hdr->cr_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(dst->cr, src->cr, GET32(src, hdr->cr_length) * ss);
dst->pdd = malloc(GET32(src, hdr->pdd_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(dst->pdd, src->pdd, GET32(src, hdr->pdd_length) * ss);
if (src->bbm != NULL) {
dst->bbm = malloc(GET32(src, hdr->bbmlog_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(dst->bbm, src->bbm, GET32(src, hdr->bbmlog_length) * ss);
}
}
static void
ddf_meta_update(struct ddf_meta *meta, struct ddf_meta *src)
{
struct ddf_pd_entry *pde, *spde;
int i, j;
for (i = 0; i < GET16(src, pdr->Populated_PDEs); i++) {
spde = &src->pdr->entry[i];
if (isff(spde->PD_GUID, 24))
continue;
j = ddf_meta_find_pd(meta, NULL,
GET32(src, pdr->entry[i].PD_Reference));
if (j < 0) {
j = ddf_meta_find_pd(meta, NULL, 0xffffffff);
pde = &meta->pdr->entry[j];
memcpy(pde, spde, sizeof(*pde));
} else {
pde = &meta->pdr->entry[j];
SET16D(meta, pde->PD_State,
GET16D(meta, pde->PD_State) |
GET16D(src, pde->PD_State));
}
}
}
static void
ddf_meta_free(struct ddf_meta *meta)
{
if (meta->hdr != NULL) {
free(meta->hdr, M_MD_DDF);
meta->hdr = NULL;
}
if (meta->cdr != NULL) {
free(meta->cdr, M_MD_DDF);
meta->cdr = NULL;
}
if (meta->pdr != NULL) {
free(meta->pdr, M_MD_DDF);
meta->pdr = NULL;
}
if (meta->vdr != NULL) {
free(meta->vdr, M_MD_DDF);
meta->vdr = NULL;
}
if (meta->cr != NULL) {
free(meta->cr, M_MD_DDF);
meta->cr = NULL;
}
if (meta->pdd != NULL) {
free(meta->pdd, M_MD_DDF);
meta->pdd = NULL;
}
if (meta->bbm != NULL) {
free(meta->bbm, M_MD_DDF);
meta->bbm = NULL;
}
}
static void
ddf_vol_meta_create(struct ddf_vol_meta *meta, struct ddf_meta *sample)
{
struct timespec ts;
struct clocktime ct;
struct ddf_header *hdr;
u_int ss, size;
hdr = sample->hdr;
meta->bigendian = sample->bigendian;
ss = meta->sectorsize = sample->sectorsize;
meta->hdr = malloc(ss, M_MD_DDF, M_WAITOK);
memcpy(meta->hdr, sample->hdr, ss);
meta->cdr = malloc(GET32(sample, hdr->cd_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(meta->cdr, sample->cdr, GET32(sample, hdr->cd_length) * ss);
meta->vde = malloc(sizeof(struct ddf_vd_entry), M_MD_DDF, M_WAITOK);
memset(meta->vde, 0xff, sizeof(struct ddf_vd_entry));
getnanotime(&ts);
clock_ts_to_ct(&ts, &ct);
snprintf(meta->vde->VD_GUID, 25, "FreeBSD%04d%02d%02d%08x%01x",
ct.year, ct.mon, ct.day,
arc4random(), arc4random() & 0xf);
size = GET16(sample, hdr->Configuration_Record_Length) * ss;
meta->vdc = malloc(size, M_MD_DDF, M_WAITOK);
memset(meta->vdc, 0xff, size);
SET32(meta, vdc->Signature, DDF_VDCR_SIGNATURE);
memcpy(meta->vdc->VD_GUID, meta->vde->VD_GUID, 24);
SET32(meta, vdc->Sequence_Number, 0);
}
static void
ddf_vol_meta_update(struct ddf_vol_meta *dst, struct ddf_meta *src,
uint8_t *GUID, int started)
{
struct ddf_header *hdr;
struct ddf_vd_entry *vde;
struct ddf_vdc_record *vdc;
int vnew, bvnew, bvd, size;
u_int ss;
hdr = src->hdr;
vde = &src->vdr->entry[ddf_meta_find_vd(src, GUID)];
vdc = ddf_meta_find_vdc(src, GUID);
if (GET8D(src, vdc->Secondary_Element_Count) == 1)
bvd = 0;
else
bvd = GET8D(src, vdc->Secondary_Element_Seq);
size = GET16(src, hdr->Configuration_Record_Length) * src->sectorsize;
if (dst->vdc == NULL ||
(!started && ((int32_t)(GET32D(src, vdc->Sequence_Number) -
GET32(dst, vdc->Sequence_Number))) > 0))
vnew = 1;
else
vnew = 0;
if (dst->bvdc[bvd] == NULL ||
(!started && ((int32_t)(GET32D(src, vdc->Sequence_Number) -
GET32(dst, bvdc[bvd]->Sequence_Number))) > 0))
bvnew = 1;
else
bvnew = 0;
if (vnew) {
dst->bigendian = src->bigendian;
ss = dst->sectorsize = src->sectorsize;
if (dst->hdr != NULL)
free(dst->hdr, M_MD_DDF);
dst->hdr = malloc(ss, M_MD_DDF, M_WAITOK);
memcpy(dst->hdr, src->hdr, ss);
if (dst->cdr != NULL)
free(dst->cdr, M_MD_DDF);
dst->cdr = malloc(GET32(src, hdr->cd_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(dst->cdr, src->cdr, GET32(src, hdr->cd_length) * ss);
if (dst->vde != NULL)
free(dst->vde, M_MD_DDF);
dst->vde = malloc(sizeof(struct ddf_vd_entry), M_MD_DDF, M_WAITOK);
memcpy(dst->vde, vde, sizeof(struct ddf_vd_entry));
if (dst->vdc != NULL)
free(dst->vdc, M_MD_DDF);
dst->vdc = malloc(size, M_MD_DDF, M_WAITOK);
memcpy(dst->vdc, vdc, size);
}
if (bvnew) {
if (dst->bvdc[bvd] != NULL)
free(dst->bvdc[bvd], M_MD_DDF);
dst->bvdc[bvd] = malloc(size, M_MD_DDF, M_WAITOK);
memcpy(dst->bvdc[bvd], vdc, size);
}
}
static void
ddf_vol_meta_free(struct ddf_vol_meta *meta)
{
int i;
if (meta->hdr != NULL) {
free(meta->hdr, M_MD_DDF);
meta->hdr = NULL;
}
if (meta->cdr != NULL) {
free(meta->cdr, M_MD_DDF);
meta->cdr = NULL;
}
if (meta->vde != NULL) {
free(meta->vde, M_MD_DDF);
meta->vde = NULL;
}
if (meta->vdc != NULL) {
free(meta->vdc, M_MD_DDF);
meta->vdc = NULL;
}
for (i = 0; i < DDF_MAX_DISKS_HARD; i++) {
if (meta->bvdc[i] != NULL) {
free(meta->bvdc[i], M_MD_DDF);
meta->bvdc[i] = NULL;
}
}
}
static int
ddf_meta_unused_range(struct ddf_meta *meta, off_t *off, off_t *size)
{
struct ddf_vdc_record *vdc;
off_t beg[32], end[32], beg1, end1;
uint64_t *offp;
int i, j, n, num, pos;
uint32_t ref;
*off = 0;
*size = 0;
ref = GET32(meta, pdd->PD_Reference);
pos = ddf_meta_find_pd(meta, NULL, ref);
beg[0] = 0;
end[0] = GET64(meta, pdr->entry[pos].Configured_Size);
n = 1;
num = GETCRNUM(meta);
for (i = 0; i < num; i++) {
vdc = GETVDCPTR(meta, i);
if (GET32D(meta, vdc->Signature) != DDF_VDCR_SIGNATURE)
continue;
for (pos = 0; pos < GET16D(meta, vdc->Primary_Element_Count); pos++)
if (GET32D(meta, vdc->Physical_Disk_Sequence[pos]) == ref)
break;
if (pos == GET16D(meta, vdc->Primary_Element_Count))
continue;
offp = (uint64_t *)&(vdc->Physical_Disk_Sequence[
GET16(meta, hdr->Max_Primary_Element_Entries)]);
beg1 = GET64P(meta, offp + pos);
end1 = beg1 + GET64D(meta, vdc->Block_Count);
for (j = 0; j < n; j++) {
if (beg[j] >= end1 || end[j] <= beg1 )
continue;
if (beg[j] < beg1 && end[j] > end1) {
beg[n] = end1;
end[n] = end[j];
end[j] = beg1;
n++;
} else if (beg[j] < beg1)
end[j] = beg1;
else
beg[j] = end1;
}
}
for (j = 0; j < n; j++) {
if (end[j] - beg[j] > *size) {
*off = beg[j];
*size = end[j] - beg[j];
}
}
return ((*size > 0) ? 1 : 0);
}
static void
ddf_meta_get_name(struct ddf_meta *meta, int num, char *buf)
{
const char *b;
int i;
b = meta->vdr->entry[num].VD_Name;
for (i = 15; i >= 0; i--)
if (b[i] != 0x20)
break;
memcpy(buf, b, i + 1);
buf[i + 1] = 0;
}
static void
ddf_meta_put_name(struct ddf_vol_meta *meta, char *buf)
{
int len;
len = min(strlen(buf), 16);
memset(meta->vde->VD_Name, 0x20, 16);
memcpy(meta->vde->VD_Name, buf, len);
}
static int
ddf_meta_read(struct g_consumer *cp, struct ddf_meta *meta)
{
struct g_provider *pp;
struct ddf_header *ahdr, *hdr;
char *abuf, *buf;
off_t plba, slba, lba;
int error, len, i;
u_int ss;
uint32_t val;
ddf_meta_free(meta);
pp = cp->provider;
ss = meta->sectorsize = pp->sectorsize;
/* Read anchor block. */
abuf = g_read_data(cp, pp->mediasize - ss, ss, &error);
if (abuf == NULL) {
G_RAID_DEBUG(1, "Cannot read metadata from %s (error=%d).",
pp->name, error);
return (error);
}
ahdr = (struct ddf_header *)abuf;
/* Check if this is an DDF RAID struct */
if (be32dec(&ahdr->Signature) == DDF_HEADER_SIGNATURE)
meta->bigendian = 1;
else if (le32dec(&ahdr->Signature) == DDF_HEADER_SIGNATURE)
meta->bigendian = 0;
else {
G_RAID_DEBUG(1, "DDF signature check failed on %s", pp->name);
error = EINVAL;
goto done;
}
if (ahdr->Header_Type != DDF_HEADER_ANCHOR) {
G_RAID_DEBUG(1, "DDF header type check failed on %s", pp->name);
error = EINVAL;
goto done;
}
meta->hdr = ahdr;
plba = GET64(meta, hdr->Primary_Header_LBA);
slba = GET64(meta, hdr->Secondary_Header_LBA);
val = GET32(meta, hdr->CRC);
SET32(meta, hdr->CRC, 0xffffffff);
meta->hdr = NULL;
if (crc32(ahdr, ss) != val) {
G_RAID_DEBUG(1, "DDF CRC mismatch on %s", pp->name);
error = EINVAL;
goto done;
}
if ((plba + 6) * ss >= pp->mediasize) {
G_RAID_DEBUG(1, "DDF primary header LBA is wrong on %s", pp->name);
error = EINVAL;
goto done;
}
if (slba != -1 && (slba + 6) * ss >= pp->mediasize) {
G_RAID_DEBUG(1, "DDF secondary header LBA is wrong on %s", pp->name);
error = EINVAL;
goto done;
}
lba = plba;
doread:
error = 0;
ddf_meta_free(meta);
/* Read header block. */
buf = g_read_data(cp, lba * ss, ss, &error);
if (buf == NULL) {
readerror:
G_RAID_DEBUG(1, "DDF %s metadata read error on %s (error=%d).",
(lba == plba) ? "primary" : "secondary", pp->name, error);
if (lba == plba && slba != -1) {
lba = slba;
goto doread;
}
G_RAID_DEBUG(1, "DDF metadata read error on %s.", pp->name);
goto done;
}
meta->hdr = malloc(ss, M_MD_DDF, M_WAITOK);
memcpy(meta->hdr, buf, ss);
g_free(buf);
hdr = meta->hdr;
val = GET32(meta, hdr->CRC);
SET32(meta, hdr->CRC, 0xffffffff);
if (hdr->Signature != ahdr->Signature ||
crc32(meta->hdr, ss) != val ||
memcmp(hdr->DDF_Header_GUID, ahdr->DDF_Header_GUID, 24) ||
GET64(meta, hdr->Primary_Header_LBA) != plba ||
GET64(meta, hdr->Secondary_Header_LBA) != slba) {
hdrerror:
G_RAID_DEBUG(1, "DDF %s metadata check failed on %s",
(lba == plba) ? "primary" : "secondary", pp->name);
if (lba == plba && slba != -1) {
lba = slba;
goto doread;
}
G_RAID_DEBUG(1, "DDF metadata check failed on %s", pp->name);
error = EINVAL;
goto done;
}
if ((lba == plba && hdr->Header_Type != DDF_HEADER_PRIMARY) ||
(lba == slba && hdr->Header_Type != DDF_HEADER_SECONDARY))
goto hdrerror;
len = 1;
len = max(len, GET32(meta, hdr->cd_section) + GET32(meta, hdr->cd_length));
len = max(len, GET32(meta, hdr->pdr_section) + GET32(meta, hdr->pdr_length));
len = max(len, GET32(meta, hdr->vdr_section) + GET32(meta, hdr->vdr_length));
len = max(len, GET32(meta, hdr->cr_section) + GET32(meta, hdr->cr_length));
len = max(len, GET32(meta, hdr->pdd_section) + GET32(meta, hdr->pdd_length));
if ((val = GET32(meta, hdr->bbmlog_section)) != 0xffffffff)
len = max(len, val + GET32(meta, hdr->bbmlog_length));
if ((val = GET32(meta, hdr->Diagnostic_Space)) != 0xffffffff)
len = max(len, val + GET32(meta, hdr->Diagnostic_Space_Length));
if ((val = GET32(meta, hdr->Vendor_Specific_Logs)) != 0xffffffff)
len = max(len, val + GET32(meta, hdr->Vendor_Specific_Logs_Length));
if ((plba + len) * ss >= pp->mediasize)
goto hdrerror;
if (slba != -1 && (slba + len) * ss >= pp->mediasize)
goto hdrerror;
/* Workaround for Adaptec implementation. */
if (GET16(meta, hdr->Max_Primary_Element_Entries) == 0xffff) {
SET16(meta, hdr->Max_Primary_Element_Entries,
min(GET16(meta, hdr->Max_PD_Entries),
(GET16(meta, hdr->Configuration_Record_Length) * ss - 512) / 12));
}
/* Read controller data. */
buf = g_read_data(cp, (lba + GET32(meta, hdr->cd_section)) * ss,
GET32(meta, hdr->cd_length) * ss, &error);
if (buf == NULL)
goto readerror;
meta->cdr = malloc(GET32(meta, hdr->cd_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(meta->cdr, buf, GET32(meta, hdr->cd_length) * ss);
g_free(buf);
if (GET32(meta, cdr->Signature) != DDF_CONTROLLER_DATA_SIGNATURE)
goto hdrerror;
/* Read physical disk records. */
buf = g_read_data(cp, (lba + GET32(meta, hdr->pdr_section)) * ss,
GET32(meta, hdr->pdr_length) * ss, &error);
if (buf == NULL)
goto readerror;
meta->pdr = malloc(GET32(meta, hdr->pdr_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(meta->pdr, buf, GET32(meta, hdr->pdr_length) * ss);
g_free(buf);
if (GET32(meta, pdr->Signature) != DDF_PDR_SIGNATURE)
goto hdrerror;
/* Read virtual disk records. */
buf = g_read_data(cp, (lba + GET32(meta, hdr->vdr_section)) * ss,
GET32(meta, hdr->vdr_length) * ss, &error);
if (buf == NULL)
goto readerror;
meta->vdr = malloc(GET32(meta, hdr->vdr_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(meta->vdr, buf, GET32(meta, hdr->vdr_length) * ss);
g_free(buf);
if (GET32(meta, vdr->Signature) != DDF_VD_RECORD_SIGNATURE)
goto hdrerror;
/* Read configuration records. */
buf = g_read_data(cp, (lba + GET32(meta, hdr->cr_section)) * ss,
GET32(meta, hdr->cr_length) * ss, &error);
if (buf == NULL)
goto readerror;
meta->cr = malloc(GET32(meta, hdr->cr_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(meta->cr, buf, GET32(meta, hdr->cr_length) * ss);
g_free(buf);
/* Read physical disk data. */
buf = g_read_data(cp, (lba + GET32(meta, hdr->pdd_section)) * ss,
GET32(meta, hdr->pdd_length) * ss, &error);
if (buf == NULL)
goto readerror;
meta->pdd = malloc(GET32(meta, hdr->pdd_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(meta->pdd, buf, GET32(meta, hdr->pdd_length) * ss);
g_free(buf);
if (GET32(meta, pdd->Signature) != DDF_PDD_SIGNATURE)
goto hdrerror;
i = ddf_meta_find_pd(meta, NULL, GET32(meta, pdd->PD_Reference));
if (i < 0)
goto hdrerror;
/* Read BBM Log. */
if (GET32(meta, hdr->bbmlog_section) != 0xffffffff &&
GET32(meta, hdr->bbmlog_length) != 0) {
buf = g_read_data(cp, (lba + GET32(meta, hdr->bbmlog_section)) * ss,
GET32(meta, hdr->bbmlog_length) * ss, &error);
if (buf == NULL)
goto readerror;
meta->bbm = malloc(GET32(meta, hdr->bbmlog_length) * ss, M_MD_DDF, M_WAITOK);
memcpy(meta->bbm, buf, GET32(meta, hdr->bbmlog_length) * ss);
g_free(buf);
if (GET32(meta, bbm->Signature) != DDF_BBML_SIGNATURE)
goto hdrerror;
}
done:
g_free(abuf);
if (error != 0)
ddf_meta_free(meta);
return (error);
}
static int
ddf_meta_write(struct g_consumer *cp, struct ddf_meta *meta)
{
struct g_provider *pp;
struct ddf_vdc_record *vdc;
off_t alba, plba, slba, lba;
u_int ss, size;
int error, i, num;
pp = cp->provider;
ss = pp->sectorsize;
lba = alba = pp->mediasize / ss - 1;
plba = GET64(meta, hdr->Primary_Header_LBA);
slba = GET64(meta, hdr->Secondary_Header_LBA);
next:
SET8(meta, hdr->Header_Type, (lba == alba) ? DDF_HEADER_ANCHOR :
(lba == plba) ? DDF_HEADER_PRIMARY : DDF_HEADER_SECONDARY);
SET32(meta, hdr->CRC, 0xffffffff);
SET32(meta, hdr->CRC, crc32(meta->hdr, ss));
error = g_write_data(cp, lba * ss, meta->hdr, ss);
if (error != 0) {
err:
G_RAID_DEBUG(1, "Cannot write metadata to %s (error=%d).",
pp->name, error);
if (lba != alba)
goto done;
}
if (lba == alba) {
lba = plba;
goto next;
}
size = GET32(meta, hdr->cd_length) * ss;
SET32(meta, cdr->CRC, 0xffffffff);
SET32(meta, cdr->CRC, crc32(meta->cdr, size));
error = g_write_data(cp, (lba + GET32(meta, hdr->cd_section)) * ss,
meta->cdr, size);
if (error != 0)
goto err;
size = GET32(meta, hdr->pdr_length) * ss;
SET32(meta, pdr->CRC, 0xffffffff);
SET32(meta, pdr->CRC, crc32(meta->pdr, size));
error = g_write_data(cp, (lba + GET32(meta, hdr->pdr_section)) * ss,
meta->pdr, size);
if (error != 0)
goto err;
size = GET32(meta, hdr->vdr_length) * ss;
SET32(meta, vdr->CRC, 0xffffffff);
SET32(meta, vdr->CRC, crc32(meta->vdr, size));
error = g_write_data(cp, (lba + GET32(meta, hdr->vdr_section)) * ss,
meta->vdr, size);
if (error != 0)
goto err;
size = GET16(meta, hdr->Configuration_Record_Length) * ss;
num = GETCRNUM(meta);
for (i = 0; i < num; i++) {
vdc = GETVDCPTR(meta, i);
SET32D(meta, vdc->CRC, 0xffffffff);
SET32D(meta, vdc->CRC, crc32(vdc, size));
}
error = g_write_data(cp, (lba + GET32(meta, hdr->cr_section)) * ss,
meta->cr, size * num);
if (error != 0)
goto err;
size = GET32(meta, hdr->pdd_length) * ss;
SET32(meta, pdd->CRC, 0xffffffff);
SET32(meta, pdd->CRC, crc32(meta->pdd, size));
error = g_write_data(cp, (lba + GET32(meta, hdr->pdd_section)) * ss,
meta->pdd, size);
if (error != 0)
goto err;
if (GET32(meta, hdr->bbmlog_length) != 0) {
size = GET32(meta, hdr->bbmlog_length) * ss;
SET32(meta, bbm->CRC, 0xffffffff);
SET32(meta, bbm->CRC, crc32(meta->bbm, size));
error = g_write_data(cp,
(lba + GET32(meta, hdr->bbmlog_section)) * ss,
meta->bbm, size);
if (error != 0)
goto err;
}
done:
if (lba == plba && slba != -1) {
lba = slba;
goto next;
}
return (error);
}
static int
ddf_meta_erase(struct g_consumer *cp)
{
struct g_provider *pp;
char *buf;
int error;
pp = cp->provider;
buf = malloc(pp->sectorsize, M_MD_DDF, M_WAITOK | M_ZERO);
error = g_write_data(cp, pp->mediasize - pp->sectorsize,
buf, pp->sectorsize);
if (error != 0) {
G_RAID_DEBUG(1, "Cannot erase metadata on %s (error=%d).",
pp->name, error);
}
free(buf, M_MD_DDF);
return (error);
}
static struct g_raid_volume *
g_raid_md_ddf_get_volume(struct g_raid_softc *sc, uint8_t *GUID)
{
struct g_raid_volume *vol;
struct g_raid_md_ddf_pervolume *pv;
TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
pv = vol->v_md_data;
if (memcmp(pv->pv_meta.vde->VD_GUID, GUID, 24) == 0)
break;
}
return (vol);
}
static struct g_raid_disk *
g_raid_md_ddf_get_disk(struct g_raid_softc *sc, uint8_t *GUID, uint32_t id)
{
struct g_raid_disk *disk;
struct g_raid_md_ddf_perdisk *pd;
struct ddf_meta *meta;
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
meta = &pd->pd_meta;
if (GUID != NULL) {
if (memcmp(meta->pdd->PD_GUID, GUID, 24) == 0)
break;
} else {
if (GET32(meta, pdd->PD_Reference) == id)
break;
}
}
return (disk);
}
static int
g_raid_md_ddf_purge_volumes(struct g_raid_softc *sc)
{
struct g_raid_volume *vol, *tvol;
struct g_raid_md_ddf_pervolume *pv;
int i, res;
res = 0;
TAILQ_FOREACH_SAFE(vol, &sc->sc_volumes, v_next, tvol) {
pv = vol->v_md_data;
if (vol->v_stopping)
continue;
for (i = 0; i < vol->v_disks_count; i++) {
if (vol->v_subdisks[i].sd_state != G_RAID_SUBDISK_S_NONE)
break;
}
if (i >= vol->v_disks_count) {
g_raid_destroy_volume(vol);
res = 1;
}
}
return (res);
}
static int
g_raid_md_ddf_purge_disks(struct g_raid_softc *sc)
{
#if 0
struct g_raid_disk *disk, *tdisk;
struct g_raid_volume *vol;
struct g_raid_md_ddf_perdisk *pd;
int i, j, res;
res = 0;
TAILQ_FOREACH_SAFE(disk, &sc->sc_disks, d_next, tdisk) {
if (disk->d_state == G_RAID_DISK_S_SPARE)
continue;
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
/* Scan for deleted volumes. */
for (i = 0; i < pd->pd_subdisks; ) {
vol = g_raid_md_ddf_get_volume(sc,
pd->pd_meta[i]->volume_id);
if (vol != NULL && !vol->v_stopping) {
i++;
continue;
}
free(pd->pd_meta[i], M_MD_DDF);
for (j = i; j < pd->pd_subdisks - 1; j++)
pd->pd_meta[j] = pd->pd_meta[j + 1];
pd->pd_meta[DDF_MAX_SUBDISKS - 1] = NULL;
pd->pd_subdisks--;
pd->pd_updated = 1;
}
/* If there is no metadata left - erase and delete disk. */
if (pd->pd_subdisks == 0) {
ddf_meta_erase(disk->d_consumer);
g_raid_destroy_disk(disk);
res = 1;
}
}
return (res);
#endif
return (0);
}
static int
g_raid_md_ddf_supported(int level, int qual, int disks, int force)
{
if (disks > DDF_MAX_DISKS_HARD)
return (0);
switch (level) {
case G_RAID_VOLUME_RL_RAID0:
if (qual != G_RAID_VOLUME_RLQ_NONE)
return (0);
if (disks < 1)
return (0);
if (!force && disks < 2)
return (0);
break;
case G_RAID_VOLUME_RL_RAID1:
if (disks < 1)
return (0);
if (qual == G_RAID_VOLUME_RLQ_R1SM) {
if (!force && disks != 2)
return (0);
} else if (qual == G_RAID_VOLUME_RLQ_R1MM) {
if (!force && disks != 3)
return (0);
} else
return (0);
break;
case G_RAID_VOLUME_RL_RAID3:
if (qual != G_RAID_VOLUME_RLQ_R3P0 &&
qual != G_RAID_VOLUME_RLQ_R3PN)
return (0);
if (disks < 3)
return (0);
break;
case G_RAID_VOLUME_RL_RAID4:
if (qual != G_RAID_VOLUME_RLQ_R4P0 &&
qual != G_RAID_VOLUME_RLQ_R4PN)
return (0);
if (disks < 3)
return (0);
break;
case G_RAID_VOLUME_RL_RAID5:
if (qual != G_RAID_VOLUME_RLQ_R5RA &&
qual != G_RAID_VOLUME_RLQ_R5RS &&
qual != G_RAID_VOLUME_RLQ_R5LA &&
qual != G_RAID_VOLUME_RLQ_R5LS)
return (0);
if (disks < 3)
return (0);
break;
case G_RAID_VOLUME_RL_RAID6:
if (qual != G_RAID_VOLUME_RLQ_R6RA &&
qual != G_RAID_VOLUME_RLQ_R6RS &&
qual != G_RAID_VOLUME_RLQ_R6LA &&
qual != G_RAID_VOLUME_RLQ_R6LS)
return (0);
if (disks < 4)
return (0);
break;
case G_RAID_VOLUME_RL_RAIDMDF:
if (qual != G_RAID_VOLUME_RLQ_RMDFRA &&
qual != G_RAID_VOLUME_RLQ_RMDFRS &&
qual != G_RAID_VOLUME_RLQ_RMDFLA &&
qual != G_RAID_VOLUME_RLQ_RMDFLS)
return (0);
if (disks < 4)
return (0);
break;
case G_RAID_VOLUME_RL_RAID1E:
if (qual != G_RAID_VOLUME_RLQ_R1EA &&
qual != G_RAID_VOLUME_RLQ_R1EO)
return (0);
if (disks < 3)
return (0);
break;
case G_RAID_VOLUME_RL_SINGLE:
if (qual != G_RAID_VOLUME_RLQ_NONE)
return (0);
if (disks != 1)
return (0);
break;
case G_RAID_VOLUME_RL_CONCAT:
if (qual != G_RAID_VOLUME_RLQ_NONE)
return (0);
if (disks < 2)
return (0);
break;
case G_RAID_VOLUME_RL_RAID5E:
if (qual != G_RAID_VOLUME_RLQ_R5ERA &&
qual != G_RAID_VOLUME_RLQ_R5ERS &&
qual != G_RAID_VOLUME_RLQ_R5ELA &&
qual != G_RAID_VOLUME_RLQ_R5ELS)
return (0);
if (disks < 4)
return (0);
break;
case G_RAID_VOLUME_RL_RAID5EE:
if (qual != G_RAID_VOLUME_RLQ_R5EERA &&
qual != G_RAID_VOLUME_RLQ_R5EERS &&
qual != G_RAID_VOLUME_RLQ_R5EELA &&
qual != G_RAID_VOLUME_RLQ_R5EELS)
return (0);
if (disks < 4)
return (0);
break;
case G_RAID_VOLUME_RL_RAID5R:
if (qual != G_RAID_VOLUME_RLQ_R5RRA &&
qual != G_RAID_VOLUME_RLQ_R5RRS &&
qual != G_RAID_VOLUME_RLQ_R5RLA &&
qual != G_RAID_VOLUME_RLQ_R5RLS)
return (0);
if (disks < 3)
return (0);
break;
default:
return (0);
}
return (1);
}
static int
g_raid_md_ddf_start_disk(struct g_raid_disk *disk, struct g_raid_volume *vol)
{
struct g_raid_softc *sc;
struct g_raid_subdisk *sd;
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_md_ddf_pervolume *pv;
struct g_raid_md_ddf_object *mdi;
struct ddf_vol_meta *vmeta;
struct ddf_meta *pdmeta, *gmeta;
struct ddf_vdc_record *vdc1;
struct ddf_sa_record *sa;
off_t size, eoff = 0, esize = 0;
uint64_t *val2;
int disk_pos, md_disk_bvd = -1, md_disk_pos = -1, md_pde_pos;
int i, resurrection = 0;
uint32_t reference;
sc = disk->d_softc;
mdi = (struct g_raid_md_ddf_object *)sc->sc_md;
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
pdmeta = &pd->pd_meta;
reference = GET32(&pd->pd_meta, pdd->PD_Reference);
pv = vol->v_md_data;
vmeta = &pv->pv_meta;
gmeta = &mdi->mdio_meta;
/* Find disk position in metadata by it's reference. */
disk_pos = ddf_meta_find_disk(vmeta, reference,
&md_disk_bvd, &md_disk_pos);
md_pde_pos = ddf_meta_find_pd(gmeta, NULL, reference);
if (disk_pos < 0) {
G_RAID_DEBUG1(1, sc,
"Disk %s is not a present part of the volume %s",
g_raid_get_diskname(disk), vol->v_name);
/* Failed stale disk is useless for us. */
if ((GET16(gmeta, pdr->entry[md_pde_pos].PD_State) & DDF_PDE_PFA) != 0) {
g_raid_change_disk_state(disk, G_RAID_DISK_S_STALE_FAILED);
return (0);
}
/* If disk has some metadata for this volume - erase. */
if ((vdc1 = ddf_meta_find_vdc(pdmeta, vmeta->vdc->VD_GUID)) != NULL)
SET32D(pdmeta, vdc1->Signature, 0xffffffff);
/* If we are in the start process, that's all for now. */
if (!pv->pv_started)
goto nofit;
/*
* If we have already started - try to get use of the disk.
* Try to replace OFFLINE disks first, then FAILED.
*/
if (ddf_meta_count_vdc(&pd->pd_meta, NULL) >=
GET16(&pd->pd_meta, hdr->Max_Partitions)) {
G_RAID_DEBUG1(1, sc, "No free partitions on disk %s",
g_raid_get_diskname(disk));
goto nofit;
}
ddf_meta_unused_range(&pd->pd_meta, &eoff, &esize);
if (esize == 0) {
G_RAID_DEBUG1(1, sc, "No free space on disk %s",
g_raid_get_diskname(disk));
goto nofit;
}
eoff *= pd->pd_meta.sectorsize;
esize *= pd->pd_meta.sectorsize;
size = INT64_MAX;
for (i = 0; i < vol->v_disks_count; i++) {
sd = &vol->v_subdisks[i];
if (sd->sd_state != G_RAID_SUBDISK_S_NONE)
size = sd->sd_size;
if (sd->sd_state <= G_RAID_SUBDISK_S_FAILED &&
(disk_pos < 0 ||
vol->v_subdisks[i].sd_state < sd->sd_state))
disk_pos = i;
}
if (disk_pos >= 0 &&
vol->v_raid_level != G_RAID_VOLUME_RL_CONCAT &&
esize < size) {
G_RAID_DEBUG1(1, sc, "Disk %s free space "
"is too small (%ju < %ju)",
g_raid_get_diskname(disk), esize, size);
disk_pos = -1;
}
if (disk_pos >= 0) {
if (vol->v_raid_level != G_RAID_VOLUME_RL_CONCAT)
esize = size;
md_disk_bvd = disk_pos / GET16(vmeta, vdc->Primary_Element_Count); // XXX
md_disk_pos = disk_pos % GET16(vmeta, vdc->Primary_Element_Count); // XXX
} else {
nofit:
if (disk->d_state == G_RAID_DISK_S_NONE)
g_raid_change_disk_state(disk,
G_RAID_DISK_S_STALE);
return (0);
}
/*
* If spare is committable, delete spare record.
* Othersize, mark it active and leave there.
*/
sa = ddf_meta_find_sa(&pd->pd_meta, 0);
if (sa != NULL) {
if ((GET8D(&pd->pd_meta, sa->Spare_Type) &
DDF_SAR_TYPE_REVERTIBLE) == 0) {
SET32D(&pd->pd_meta, sa->Signature, 0xffffffff);
} else {
SET8D(&pd->pd_meta, sa->Spare_Type,
GET8D(&pd->pd_meta, sa->Spare_Type) |
DDF_SAR_TYPE_ACTIVE);
}
}
G_RAID_DEBUG1(1, sc, "Disk %s takes pos %d in the volume %s",
g_raid_get_diskname(disk), disk_pos, vol->v_name);
resurrection = 1;
}
sd = &vol->v_subdisks[disk_pos];
if (resurrection && sd->sd_disk != NULL) {
g_raid_change_disk_state(sd->sd_disk,
G_RAID_DISK_S_STALE_FAILED);
TAILQ_REMOVE(&sd->sd_disk->d_subdisks,
sd, sd_next);
}
vol->v_subdisks[disk_pos].sd_disk = disk;
TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
/* Welcome the new disk. */
if (resurrection)
g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
else if (GET8(gmeta, pdr->entry[md_pde_pos].PD_State) & DDF_PDE_PFA)
g_raid_change_disk_state(disk, G_RAID_DISK_S_FAILED);
else
g_raid_change_disk_state(disk, G_RAID_DISK_S_ACTIVE);
if (resurrection) {
sd->sd_offset = eoff;
sd->sd_size = esize;
} else if (pdmeta->cr != NULL &&
(vdc1 = ddf_meta_find_vdc(pdmeta, vmeta->vdc->VD_GUID)) != NULL) {
val2 = (uint64_t *)&(vdc1->Physical_Disk_Sequence[GET16(vmeta, hdr->Max_Primary_Element_Entries)]);
sd->sd_offset = (off_t)GET64P(pdmeta, val2 + md_disk_pos) * 512;
sd->sd_size = (off_t)GET64D(pdmeta, vdc1->Block_Count) * 512;
}
if (resurrection) {
/* Stale disk, almost same as new. */
g_raid_change_subdisk_state(sd,
G_RAID_SUBDISK_S_NEW);
} else if (GET8(gmeta, pdr->entry[md_pde_pos].PD_State) & DDF_PDE_PFA) {
/* Failed disk. */
g_raid_change_subdisk_state(sd,
G_RAID_SUBDISK_S_FAILED);
} else if ((GET8(gmeta, pdr->entry[md_pde_pos].PD_State) &
(DDF_PDE_FAILED | DDF_PDE_REBUILD)) != 0) {
/* Rebuilding disk. */
g_raid_change_subdisk_state(sd,
G_RAID_SUBDISK_S_REBUILD);
sd->sd_rebuild_pos = 0;
} else if ((GET8(vmeta, vde->VD_State) & DDF_VDE_DIRTY) != 0 ||
(GET8(vmeta, vde->Init_State) & DDF_VDE_INIT_MASK) !=
DDF_VDE_INIT_FULL) {
/* Stale disk or dirty volume (unclean shutdown). */
g_raid_change_subdisk_state(sd,
G_RAID_SUBDISK_S_STALE);
} else {
/* Up to date disk. */
g_raid_change_subdisk_state(sd,
G_RAID_SUBDISK_S_ACTIVE);
}
g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
G_RAID_EVENT_SUBDISK);
return (resurrection);
}
static void
g_raid_md_ddf_refill(struct g_raid_softc *sc)
{
struct g_raid_volume *vol;
struct g_raid_subdisk *sd;
struct g_raid_disk *disk;
struct g_raid_md_object *md;
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_md_ddf_pervolume *pv;
int update, updated, i, bad;
md = sc->sc_md;
restart:
updated = 0;
TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
pv = vol->v_md_data;
if (!pv->pv_started || vol->v_stopping)
continue;
/* Search for subdisk that needs replacement. */
bad = 0;
for (i = 0; i < vol->v_disks_count; i++) {
sd = &vol->v_subdisks[i];
if (sd->sd_state == G_RAID_SUBDISK_S_NONE ||
sd->sd_state == G_RAID_SUBDISK_S_FAILED)
bad = 1;
}
if (!bad)
continue;
G_RAID_DEBUG1(1, sc, "Volume %s is not complete, "
"trying to refill.", vol->v_name);
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
/* Skip failed. */
if (disk->d_state < G_RAID_DISK_S_SPARE)
continue;
/* Skip already used by this volume. */
for (i = 0; i < vol->v_disks_count; i++) {
sd = &vol->v_subdisks[i];
if (sd->sd_disk == disk)
break;
}
if (i < vol->v_disks_count)
continue;
/* Try to use disk if it has empty extents. */
pd = disk->d_md_data;
if (ddf_meta_count_vdc(&pd->pd_meta, NULL) <
GET16(&pd->pd_meta, hdr->Max_Partitions)) {
update = g_raid_md_ddf_start_disk(disk, vol);
} else
update = 0;
if (update) {
updated = 1;
g_raid_md_write_ddf(md, vol, NULL, disk);
break;
}
}
}
if (updated)
goto restart;
}
static void
g_raid_md_ddf_start(struct g_raid_volume *vol)
{
struct g_raid_softc *sc;
struct g_raid_subdisk *sd;
struct g_raid_disk *disk;
struct g_raid_md_object *md;
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_md_ddf_pervolume *pv;
struct g_raid_md_ddf_object *mdi;
struct ddf_vol_meta *vmeta;
struct ddf_vdc_record *vdc;
uint64_t *val2;
int i, j, bvd;
sc = vol->v_softc;
md = sc->sc_md;
mdi = (struct g_raid_md_ddf_object *)md;
pv = vol->v_md_data;
vmeta = &pv->pv_meta;
vdc = vmeta->vdc;
vol->v_raid_level = GET8(vmeta, vdc->Primary_RAID_Level);
vol->v_raid_level_qualifier = GET8(vmeta, vdc->RLQ);
if (GET8(vmeta, vdc->Secondary_Element_Count) > 1 &&
vol->v_raid_level == G_RAID_VOLUME_RL_RAID1 &&
GET8(vmeta, vdc->Secondary_RAID_Level) == 0)
vol->v_raid_level = G_RAID_VOLUME_RL_RAID1E;
vol->v_sectorsize = GET16(vmeta, vdc->Block_Size);
if (vol->v_sectorsize == 0xffff)
vol->v_sectorsize = vmeta->sectorsize;
vol->v_strip_size = vol->v_sectorsize << GET8(vmeta, vdc->Stripe_Size);
vol->v_disks_count = GET16(vmeta, vdc->Primary_Element_Count) *
GET8(vmeta, vdc->Secondary_Element_Count);
vol->v_mdf_pdisks = GET8(vmeta, vdc->MDF_Parity_Disks);
vol->v_mdf_polynomial = GET16(vmeta, vdc->MDF_Parity_Generator_Polynomial);
vol->v_mdf_method = GET8(vmeta, vdc->MDF_Constant_Generation_Method);
if (GET8(vmeta, vdc->Rotate_Parity_count) > 31)
vol->v_rotate_parity = 1;
else
vol->v_rotate_parity = 1 << GET8(vmeta, vdc->Rotate_Parity_count);
vol->v_mediasize = GET64(vmeta, vdc->VD_Size) * vol->v_sectorsize;
for (i = 0, j = 0, bvd = 0; i < vol->v_disks_count; i++, j++) {
if (j == GET16(vmeta, vdc->Primary_Element_Count)) {
j = 0;
bvd++;
}
sd = &vol->v_subdisks[i];
if (vmeta->bvdc[bvd] == NULL) {
sd->sd_offset = 0;
sd->sd_size = GET64(vmeta, vdc->Block_Count) *
vol->v_sectorsize;
continue;
}
val2 = (uint64_t *)&(vmeta->bvdc[bvd]->Physical_Disk_Sequence[
GET16(vmeta, hdr->Max_Primary_Element_Entries)]);
sd->sd_offset = GET64P(vmeta, val2 + j) * vol->v_sectorsize;
sd->sd_size = GET64(vmeta, bvdc[bvd]->Block_Count) *
vol->v_sectorsize;
}
g_raid_start_volume(vol);
/* Make all disks found till the moment take their places. */
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
if (ddf_meta_find_vdc(&pd->pd_meta, vmeta->vdc->VD_GUID) != NULL)
g_raid_md_ddf_start_disk(disk, vol);
}
pv->pv_started = 1;
mdi->mdio_starting--;
callout_stop(&pv->pv_start_co);
G_RAID_DEBUG1(0, sc, "Volume started.");
g_raid_md_write_ddf(md, vol, NULL, NULL);
/* Pickup any STALE/SPARE disks to refill array if needed. */
g_raid_md_ddf_refill(sc);
g_raid_event_send(vol, G_RAID_VOLUME_E_START, G_RAID_EVENT_VOLUME);
}
static void
g_raid_ddf_go(void *arg)
{
struct g_raid_volume *vol;
struct g_raid_softc *sc;
struct g_raid_md_ddf_pervolume *pv;
vol = arg;
pv = vol->v_md_data;
sc = vol->v_softc;
if (!pv->pv_started) {
G_RAID_DEBUG1(0, sc, "Force volume start due to timeout.");
g_raid_event_send(vol, G_RAID_VOLUME_E_STARTMD,
G_RAID_EVENT_VOLUME);
}
}
static void
g_raid_md_ddf_new_disk(struct g_raid_disk *disk)
{
struct g_raid_softc *sc;
struct g_raid_md_object *md;
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_md_ddf_pervolume *pv;
struct g_raid_md_ddf_object *mdi;
struct g_raid_volume *vol;
struct ddf_meta *pdmeta;
struct ddf_vol_meta *vmeta;
struct ddf_vdc_record *vdc;
struct ddf_vd_entry *vde;
int i, j, k, num, have, need, cnt, spare;
uint32_t val;
char buf[17];
sc = disk->d_softc;
md = sc->sc_md;
mdi = (struct g_raid_md_ddf_object *)md;
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
pdmeta = &pd->pd_meta;
spare = -1;
if (mdi->mdio_meta.hdr == NULL)
ddf_meta_copy(&mdi->mdio_meta, pdmeta);
else
ddf_meta_update(&mdi->mdio_meta, pdmeta);
num = GETCRNUM(pdmeta);
for (j = 0; j < num; j++) {
vdc = GETVDCPTR(pdmeta, j);
val = GET32D(pdmeta, vdc->Signature);
if (val == DDF_SA_SIGNATURE && spare == -1)
spare = 1;
if (val != DDF_VDCR_SIGNATURE)
continue;
spare = 0;
k = ddf_meta_find_vd(pdmeta, vdc->VD_GUID);
if (k < 0)
continue;
vde = &pdmeta->vdr->entry[k];
/* Look for volume with matching ID. */
vol = g_raid_md_ddf_get_volume(sc, vdc->VD_GUID);
if (vol == NULL) {
ddf_meta_get_name(pdmeta, k, buf);
vol = g_raid_create_volume(sc, buf,
GET16D(pdmeta, vde->VD_Number));
pv = malloc(sizeof(*pv), M_MD_DDF, M_WAITOK | M_ZERO);
vol->v_md_data = pv;
callout_init(&pv->pv_start_co, 1);
callout_reset(&pv->pv_start_co,
g_raid_start_timeout * hz,
g_raid_ddf_go, vol);
mdi->mdio_starting++;
} else
pv = vol->v_md_data;
/* If we haven't started yet - check metadata freshness. */
vmeta = &pv->pv_meta;
ddf_vol_meta_update(vmeta, pdmeta, vdc->VD_GUID, pv->pv_started);
}
if (spare == 1) {
g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE);
g_raid_md_ddf_refill(sc);
}
TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
pv = vol->v_md_data;
vmeta = &pv->pv_meta;
if (ddf_meta_find_vdc(pdmeta, vmeta->vdc->VD_GUID) == NULL)
continue;
if (pv->pv_started) {
if (g_raid_md_ddf_start_disk(disk, vol))
g_raid_md_write_ddf(md, vol, NULL, NULL);
continue;
}
/* If we collected all needed disks - start array. */
need = 0;
have = 0;
for (k = 0; k < GET8(vmeta, vdc->Secondary_Element_Count); k++) {
if (vmeta->bvdc[k] == NULL) {
need += GET16(vmeta, vdc->Primary_Element_Count);
continue;
}
cnt = GET16(vmeta, bvdc[k]->Primary_Element_Count);
need += cnt;
for (i = 0; i < cnt; i++) {
val = GET32(vmeta, bvdc[k]->Physical_Disk_Sequence[i]);
if (g_raid_md_ddf_get_disk(sc, NULL, val) != NULL)
have++;
}
}
G_RAID_DEBUG1(1, sc, "Volume %s now has %d of %d disks",
vol->v_name, have, need);
if (have == need)
g_raid_md_ddf_start(vol);
}
}
static int
g_raid_md_create_req_ddf(struct g_raid_md_object *md, struct g_class *mp,
struct gctl_req *req, struct g_geom **gp)
{
struct g_geom *geom;
struct g_raid_softc *sc;
struct g_raid_md_ddf_object *mdi, *mdi1;
char name[16];
const char *fmtopt;
int be = 1;
mdi = (struct g_raid_md_ddf_object *)md;
fmtopt = gctl_get_asciiparam(req, "fmtopt");
if (fmtopt == NULL || strcasecmp(fmtopt, "BE") == 0)
be = 1;
else if (strcasecmp(fmtopt, "LE") == 0)
be = 0;
else {
gctl_error(req, "Incorrect fmtopt argument.");
return (G_RAID_MD_TASTE_FAIL);
}
/* Search for existing node. */
LIST_FOREACH(geom, &mp->geom, geom) {
sc = geom->softc;
if (sc == NULL)
continue;
if (sc->sc_stopping != 0)
continue;
if (sc->sc_md->mdo_class != md->mdo_class)
continue;
mdi1 = (struct g_raid_md_ddf_object *)sc->sc_md;
if (mdi1->mdio_bigendian != be)
continue;
break;
}
if (geom != NULL) {
*gp = geom;
return (G_RAID_MD_TASTE_EXISTING);
}
/* Create new one if not found. */
mdi->mdio_bigendian = be;
snprintf(name, sizeof(name), "DDF%s", be ? "" : "-LE");
sc = g_raid_create_node(mp, name, md);
if (sc == NULL)
return (G_RAID_MD_TASTE_FAIL);
md->mdo_softc = sc;
*gp = sc->sc_geom;
return (G_RAID_MD_TASTE_NEW);
}
static int
g_raid_md_taste_ddf(struct g_raid_md_object *md, struct g_class *mp,
struct g_consumer *cp, struct g_geom **gp)
{
struct g_consumer *rcp;
struct g_provider *pp;
struct g_raid_softc *sc;
struct g_raid_disk *disk;
struct ddf_meta meta;
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_md_ddf_object *mdi;
struct g_geom *geom;
int error, result, be;
char name[16];
G_RAID_DEBUG(1, "Tasting DDF on %s", cp->provider->name);
mdi = (struct g_raid_md_ddf_object *)md;
pp = cp->provider;
/* Read metadata from device. */
if (g_access(cp, 1, 0, 0) != 0)
return (G_RAID_MD_TASTE_FAIL);
g_topology_unlock();
bzero(&meta, sizeof(meta));
error = ddf_meta_read(cp, &meta);
g_topology_lock();
g_access(cp, -1, 0, 0);
if (error != 0)
return (G_RAID_MD_TASTE_FAIL);
be = meta.bigendian;
/* Metadata valid. Print it. */
g_raid_md_ddf_print(&meta);
/* Search for matching node. */
sc = NULL;
LIST_FOREACH(geom, &mp->geom, geom) {
sc = geom->softc;
if (sc == NULL)
continue;
if (sc->sc_stopping != 0)
continue;
if (sc->sc_md->mdo_class != md->mdo_class)
continue;
mdi = (struct g_raid_md_ddf_object *)sc->sc_md;
if (mdi->mdio_bigendian != be)
continue;
break;
}
/* Found matching node. */
if (geom != NULL) {
G_RAID_DEBUG(1, "Found matching array %s", sc->sc_name);
result = G_RAID_MD_TASTE_EXISTING;
} else { /* Not found matching node -- create one. */
result = G_RAID_MD_TASTE_NEW;
mdi->mdio_bigendian = be;
snprintf(name, sizeof(name), "DDF%s", be ? "" : "-LE");
sc = g_raid_create_node(mp, name, md);
md->mdo_softc = sc;
geom = sc->sc_geom;
}
rcp = g_new_consumer(geom);
g_attach(rcp, pp);
if (g_access(rcp, 1, 1, 1) != 0)
; //goto fail1;
g_topology_unlock();
sx_xlock(&sc->sc_lock);
pd = malloc(sizeof(*pd), M_MD_DDF, M_WAITOK | M_ZERO);
pd->pd_meta = meta;
disk = g_raid_create_disk(sc);
disk->d_md_data = (void *)pd;
disk->d_consumer = rcp;
rcp->private = disk;
g_raid_get_disk_info(disk);
g_raid_md_ddf_new_disk(disk);
sx_xunlock(&sc->sc_lock);
g_topology_lock();
*gp = geom;
return (result);
}
static int
g_raid_md_event_ddf(struct g_raid_md_object *md,
struct g_raid_disk *disk, u_int event)
{
struct g_raid_softc *sc;
sc = md->mdo_softc;
if (disk == NULL)
return (-1);
switch (event) {
case G_RAID_DISK_E_DISCONNECTED:
/* Delete disk. */
g_raid_change_disk_state(disk, G_RAID_DISK_S_NONE);
g_raid_destroy_disk(disk);
g_raid_md_ddf_purge_volumes(sc);
/* Write updated metadata to all disks. */
g_raid_md_write_ddf(md, NULL, NULL, NULL);
/* Check if anything left. */
if (g_raid_ndisks(sc, -1) == 0)
g_raid_destroy_node(sc, 0);
else
g_raid_md_ddf_refill(sc);
return (0);
}
return (-2);
}
static int
g_raid_md_volume_event_ddf(struct g_raid_md_object *md,
struct g_raid_volume *vol, u_int event)
{
struct g_raid_md_ddf_pervolume *pv;
pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data;
switch (event) {
case G_RAID_VOLUME_E_STARTMD:
if (!pv->pv_started)
g_raid_md_ddf_start(vol);
return (0);
}
return (-2);
}
static int
g_raid_md_ctl_ddf(struct g_raid_md_object *md,
struct gctl_req *req)
{
struct g_raid_softc *sc;
struct g_raid_volume *vol, *vol1;
struct g_raid_subdisk *sd;
struct g_raid_disk *disk, *disks[DDF_MAX_DISKS_HARD];
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_md_ddf_pervolume *pv;
struct g_raid_md_ddf_object *mdi;
struct ddf_sa_record *sa;
struct g_consumer *cp;
struct g_provider *pp;
char arg[16];
const char *nodename, *verb, *volname, *levelname, *diskname;
char *tmp;
int *nargs, *force;
off_t size, sectorsize, strip, offs[DDF_MAX_DISKS_HARD], esize;
intmax_t *sizearg, *striparg;
int i, numdisks, len, level, qual;
int error;
sc = md->mdo_softc;
mdi = (struct g_raid_md_ddf_object *)md;
verb = gctl_get_param(req, "verb", NULL);
nargs = gctl_get_paraml(req, "nargs", sizeof(*nargs));
error = 0;
if (strcmp(verb, "label") == 0) {
if (*nargs < 4) {
gctl_error(req, "Invalid number of arguments.");
return (-1);
}
volname = gctl_get_asciiparam(req, "arg1");
if (volname == NULL) {
gctl_error(req, "No volume name.");
return (-2);
}
levelname = gctl_get_asciiparam(req, "arg2");
if (levelname == NULL) {
gctl_error(req, "No RAID level.");
return (-3);
}
if (g_raid_volume_str2level(levelname, &level, &qual)) {
gctl_error(req, "Unknown RAID level '%s'.", levelname);
return (-4);
}
numdisks = *nargs - 3;
force = gctl_get_paraml(req, "force", sizeof(*force));
if (!g_raid_md_ddf_supported(level, qual, numdisks,
force ? *force : 0)) {
gctl_error(req, "Unsupported RAID level "
"(0x%02x/0x%02x), or number of disks (%d).",
level, qual, numdisks);
return (-5);
}
/* Search for disks, connect them and probe. */
size = INT64_MAX;
sectorsize = 0;
bzero(disks, sizeof(disks));
bzero(offs, sizeof(offs));
for (i = 0; i < numdisks; i++) {
snprintf(arg, sizeof(arg), "arg%d", i + 3);
diskname = gctl_get_asciiparam(req, arg);
if (diskname == NULL) {
gctl_error(req, "No disk name (%s).", arg);
error = -6;
break;
}
if (strcmp(diskname, "NONE") == 0)
continue;
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
if (disk->d_consumer != NULL &&
disk->d_consumer->provider != NULL &&
strcmp(disk->d_consumer->provider->name,
diskname) == 0)
break;
}
if (disk != NULL) {
if (disk->d_state != G_RAID_DISK_S_ACTIVE) {
gctl_error(req, "Disk '%s' is in a "
"wrong state (%s).", diskname,
g_raid_disk_state2str(disk->d_state));
error = -7;
break;
}
pd = disk->d_md_data;
if (ddf_meta_count_vdc(&pd->pd_meta, NULL) >=
GET16(&pd->pd_meta, hdr->Max_Partitions)) {
gctl_error(req, "No free partitions "
"on disk '%s'.",
diskname);
error = -7;
break;
}
pp = disk->d_consumer->provider;
disks[i] = disk;
ddf_meta_unused_range(&pd->pd_meta,
&offs[i], &esize);
offs[i] *= pp->sectorsize;
size = MIN(size, (off_t)esize * pp->sectorsize);
sectorsize = MAX(sectorsize, pp->sectorsize);
continue;
}
g_topology_lock();
cp = g_raid_open_consumer(sc, diskname);
if (cp == NULL) {
gctl_error(req, "Can't open disk '%s'.",
diskname);
g_topology_unlock();
error = -8;
break;
}
pp = cp->provider;
pd = malloc(sizeof(*pd), M_MD_DDF, M_WAITOK | M_ZERO);
disk = g_raid_create_disk(sc);
disk->d_md_data = (void *)pd;
disk->d_consumer = cp;
disks[i] = disk;
cp->private = disk;
ddf_meta_create(disk, &mdi->mdio_meta);
if (mdi->mdio_meta.hdr == NULL)
ddf_meta_copy(&mdi->mdio_meta, &pd->pd_meta);
else
ddf_meta_update(&mdi->mdio_meta, &pd->pd_meta);
g_topology_unlock();
g_raid_get_disk_info(disk);
/* Reserve some space for metadata. */
size = MIN(size, GET64(&pd->pd_meta,
pdr->entry[0].Configured_Size) * pp->sectorsize);
sectorsize = MAX(sectorsize, pp->sectorsize);
}
if (error != 0) {
for (i = 0; i < numdisks; i++) {
if (disks[i] != NULL &&
disks[i]->d_state == G_RAID_DISK_S_NONE)
g_raid_destroy_disk(disks[i]);
}
return (error);
}
if (sectorsize <= 0) {
gctl_error(req, "Can't get sector size.");
return (-8);
}
/* Handle size argument. */
len = sizeof(*sizearg);
sizearg = gctl_get_param(req, "size", &len);
if (sizearg != NULL && len == sizeof(*sizearg) &&
*sizearg > 0) {
if (*sizearg > size) {
gctl_error(req, "Size too big %lld > %lld.",
(long long)*sizearg, (long long)size);
return (-9);
}
size = *sizearg;
}
/* Handle strip argument. */
strip = 131072;
len = sizeof(*striparg);
striparg = gctl_get_param(req, "strip", &len);
if (striparg != NULL && len == sizeof(*striparg) &&
*striparg > 0) {
if (*striparg < sectorsize) {
gctl_error(req, "Strip size too small.");
return (-10);
}
if (*striparg % sectorsize != 0) {
gctl_error(req, "Incorrect strip size.");
return (-11);
}
strip = *striparg;
}
/* Round size down to strip or sector. */
if (level == G_RAID_VOLUME_RL_RAID1 ||
level == G_RAID_VOLUME_RL_RAID3 ||
level == G_RAID_VOLUME_RL_SINGLE ||
level == G_RAID_VOLUME_RL_CONCAT)
size -= (size % sectorsize);
else if (level == G_RAID_VOLUME_RL_RAID1E &&
(numdisks & 1) != 0)
size -= (size % (2 * strip));
else
size -= (size % strip);
if (size <= 0) {
gctl_error(req, "Size too small.");
return (-13);
}
/* We have all we need, create things: volume, ... */
pv = malloc(sizeof(*pv), M_MD_DDF, M_WAITOK | M_ZERO);
ddf_vol_meta_create(&pv->pv_meta, &mdi->mdio_meta);
pv->pv_started = 1;
vol = g_raid_create_volume(sc, volname, -1);
vol->v_md_data = pv;
vol->v_raid_level = level;
vol->v_raid_level_qualifier = qual;
vol->v_strip_size = strip;
vol->v_disks_count = numdisks;
if (level == G_RAID_VOLUME_RL_RAID0 ||
level == G_RAID_VOLUME_RL_CONCAT ||
level == G_RAID_VOLUME_RL_SINGLE)
vol->v_mediasize = size * numdisks;
else if (level == G_RAID_VOLUME_RL_RAID1)
vol->v_mediasize = size;
else if (level == G_RAID_VOLUME_RL_RAID3 ||
level == G_RAID_VOLUME_RL_RAID4 ||
level == G_RAID_VOLUME_RL_RAID5)
vol->v_mediasize = size * (numdisks - 1);
else if (level == G_RAID_VOLUME_RL_RAID5R) {
vol->v_mediasize = size * (numdisks - 1);
vol->v_rotate_parity = 1024;
} else if (level == G_RAID_VOLUME_RL_RAID6 ||
level == G_RAID_VOLUME_RL_RAID5E ||
level == G_RAID_VOLUME_RL_RAID5EE)
vol->v_mediasize = size * (numdisks - 2);
else if (level == G_RAID_VOLUME_RL_RAIDMDF) {
if (numdisks < 5)
vol->v_mdf_pdisks = 2;
else
vol->v_mdf_pdisks = 3;
vol->v_mdf_polynomial = 0x11d;
vol->v_mdf_method = 0x00;
vol->v_mediasize = size * (numdisks - vol->v_mdf_pdisks);
} else { /* RAID1E */
vol->v_mediasize = ((size * numdisks) / strip / 2) *
strip;
}
vol->v_sectorsize = sectorsize;
g_raid_start_volume(vol);
/* , and subdisks. */
for (i = 0; i < numdisks; i++) {
disk = disks[i];
sd = &vol->v_subdisks[i];
sd->sd_disk = disk;
sd->sd_offset = offs[i];
sd->sd_size = size;
if (disk == NULL)
continue;
TAILQ_INSERT_TAIL(&disk->d_subdisks, sd, sd_next);
g_raid_change_disk_state(disk,
G_RAID_DISK_S_ACTIVE);
g_raid_change_subdisk_state(sd,
G_RAID_SUBDISK_S_ACTIVE);
g_raid_event_send(sd, G_RAID_SUBDISK_E_NEW,
G_RAID_EVENT_SUBDISK);
}
/* Write metadata based on created entities. */
G_RAID_DEBUG1(0, sc, "Array started.");
g_raid_md_write_ddf(md, vol, NULL, NULL);
/* Pickup any STALE/SPARE disks to refill array if needed. */
g_raid_md_ddf_refill(sc);
g_raid_event_send(vol, G_RAID_VOLUME_E_START,
G_RAID_EVENT_VOLUME);
return (0);
}
if (strcmp(verb, "add") == 0) {
gctl_error(req, "`add` command is not applicable, "
"use `label` instead.");
return (-99);
}
if (strcmp(verb, "delete") == 0) {
nodename = gctl_get_asciiparam(req, "arg0");
if (nodename != NULL && strcasecmp(sc->sc_name, nodename) != 0)
nodename = NULL;
/* Full node destruction. */
if (*nargs == 1 && nodename != NULL) {
/* Check if some volume is still open. */
force = gctl_get_paraml(req, "force", sizeof(*force));
if (force != NULL && *force == 0 &&
g_raid_nopens(sc) != 0) {
gctl_error(req, "Some volume is still open.");
return (-4);
}
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
if (disk->d_consumer)
ddf_meta_erase(disk->d_consumer);
}
g_raid_destroy_node(sc, 0);
return (0);
}
/* Destroy specified volume. If it was last - all node. */
if (*nargs > 2) {
gctl_error(req, "Invalid number of arguments.");
return (-1);
}
volname = gctl_get_asciiparam(req,
nodename != NULL ? "arg1" : "arg0");
if (volname == NULL) {
gctl_error(req, "No volume name.");
return (-2);
}
/* Search for volume. */
TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
if (strcmp(vol->v_name, volname) == 0)
break;
pp = vol->v_provider;
if (pp == NULL)
continue;
if (strcmp(pp->name, volname) == 0)
break;
if (strncmp(pp->name, "raid/", 5) == 0 &&
strcmp(pp->name + 5, volname) == 0)
break;
}
if (vol == NULL) {
i = strtol(volname, &tmp, 10);
if (verb != volname && tmp[0] == 0) {
TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
if (vol->v_global_id == i)
break;
}
}
}
if (vol == NULL) {
gctl_error(req, "Volume '%s' not found.", volname);
return (-3);
}
/* Check if volume is still open. */
force = gctl_get_paraml(req, "force", sizeof(*force));
if (force != NULL && *force == 0 &&
vol->v_provider_open != 0) {
gctl_error(req, "Volume is still open.");
return (-4);
}
/* Destroy volume and potentially node. */
i = 0;
TAILQ_FOREACH(vol1, &sc->sc_volumes, v_next)
i++;
if (i >= 2) {
g_raid_destroy_volume(vol);
g_raid_md_ddf_purge_disks(sc);
g_raid_md_write_ddf(md, NULL, NULL, NULL);
} else {
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
if (disk->d_consumer)
ddf_meta_erase(disk->d_consumer);
}
g_raid_destroy_node(sc, 0);
}
return (0);
}
if (strcmp(verb, "remove") == 0 ||
strcmp(verb, "fail") == 0) {
if (*nargs < 2) {
gctl_error(req, "Invalid number of arguments.");
return (-1);
}
for (i = 1; i < *nargs; i++) {
snprintf(arg, sizeof(arg), "arg%d", i);
diskname = gctl_get_asciiparam(req, arg);
if (diskname == NULL) {
gctl_error(req, "No disk name (%s).", arg);
error = -2;
break;
}
if (strncmp(diskname, "/dev/", 5) == 0)
diskname += 5;
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
if (disk->d_consumer != NULL &&
disk->d_consumer->provider != NULL &&
strcmp(disk->d_consumer->provider->name,
diskname) == 0)
break;
}
if (disk == NULL) {
gctl_error(req, "Disk '%s' not found.",
diskname);
error = -3;
break;
}
if (strcmp(verb, "fail") == 0) {
g_raid_md_fail_disk_ddf(md, NULL, disk);
continue;
}
/* Erase metadata on deleting disk and destroy it. */
ddf_meta_erase(disk->d_consumer);
g_raid_destroy_disk(disk);
}
g_raid_md_ddf_purge_volumes(sc);
/* Write updated metadata to remaining disks. */
g_raid_md_write_ddf(md, NULL, NULL, NULL);
/* Check if anything left. */
if (g_raid_ndisks(sc, -1) == 0)
g_raid_destroy_node(sc, 0);
else
g_raid_md_ddf_refill(sc);
return (error);
}
if (strcmp(verb, "insert") == 0) {
if (*nargs < 2) {
gctl_error(req, "Invalid number of arguments.");
return (-1);
}
for (i = 1; i < *nargs; i++) {
/* Get disk name. */
snprintf(arg, sizeof(arg), "arg%d", i);
diskname = gctl_get_asciiparam(req, arg);
if (diskname == NULL) {
gctl_error(req, "No disk name (%s).", arg);
error = -3;
break;
}
/* Try to find provider with specified name. */
g_topology_lock();
cp = g_raid_open_consumer(sc, diskname);
if (cp == NULL) {
gctl_error(req, "Can't open disk '%s'.",
diskname);
g_topology_unlock();
error = -4;
break;
}
pp = cp->provider;
g_topology_unlock();
pd = malloc(sizeof(*pd), M_MD_DDF, M_WAITOK | M_ZERO);
disk = g_raid_create_disk(sc);
disk->d_consumer = cp;
disk->d_md_data = (void *)pd;
cp->private = disk;
g_raid_get_disk_info(disk);
/* Welcome the "new" disk. */
g_raid_change_disk_state(disk, G_RAID_DISK_S_SPARE);
ddf_meta_create(disk, &mdi->mdio_meta);
sa = ddf_meta_find_sa(&pd->pd_meta, 1);
if (sa != NULL) {
SET32D(&pd->pd_meta, sa->Signature,
DDF_SA_SIGNATURE);
SET8D(&pd->pd_meta, sa->Spare_Type, 0);
SET16D(&pd->pd_meta, sa->Populated_SAEs, 0);
SET16D(&pd->pd_meta, sa->MAX_SAE_Supported,
(GET16(&pd->pd_meta, hdr->Configuration_Record_Length) *
pd->pd_meta.sectorsize -
sizeof(struct ddf_sa_record)) /
sizeof(struct ddf_sa_entry));
}
if (mdi->mdio_meta.hdr == NULL)
ddf_meta_copy(&mdi->mdio_meta, &pd->pd_meta);
else
ddf_meta_update(&mdi->mdio_meta, &pd->pd_meta);
g_raid_md_write_ddf(md, NULL, NULL, NULL);
g_raid_md_ddf_refill(sc);
}
return (error);
}
return (-100);
}
static int
g_raid_md_write_ddf(struct g_raid_md_object *md, struct g_raid_volume *tvol,
struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
{
struct g_raid_softc *sc;
struct g_raid_volume *vol;
struct g_raid_subdisk *sd;
struct g_raid_disk *disk;
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_md_ddf_pervolume *pv;
struct g_raid_md_ddf_object *mdi;
struct ddf_meta *gmeta;
struct ddf_vol_meta *vmeta;
struct ddf_vdc_record *vdc;
struct ddf_sa_record *sa;
uint64_t *val2;
int i, j, pos, bvd, size;
sc = md->mdo_softc;
mdi = (struct g_raid_md_ddf_object *)md;
gmeta = &mdi->mdio_meta;
if (sc->sc_stopping == G_RAID_DESTROY_HARD)
return (0);
/*
* Clear disk flags to let only really needed ones to be reset.
* Do it only if there are no volumes in starting state now,
* as they can update disk statuses yet and we may kill innocent.
*/
if (mdi->mdio_starting == 0) {
for (i = 0; i < GET16(gmeta, pdr->Populated_PDEs); i++) {
if (isff(gmeta->pdr->entry[i].PD_GUID, 24))
continue;
SET16(gmeta, pdr->entry[i].PD_Type,
GET16(gmeta, pdr->entry[i].PD_Type) &
~(DDF_PDE_PARTICIPATING |
DDF_PDE_GLOBAL_SPARE | DDF_PDE_CONFIG_SPARE));
if ((GET16(gmeta, pdr->entry[i].PD_State) &
DDF_PDE_PFA) == 0)
SET16(gmeta, pdr->entry[i].PD_State, 0);
}
}
/* Generate/update new per-volume metadata. */
TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data;
if (vol->v_stopping || !pv->pv_started)
continue;
vmeta = &pv->pv_meta;
SET32(vmeta, vdc->Sequence_Number,
GET32(vmeta, vdc->Sequence_Number) + 1);
if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E &&
vol->v_disks_count % 2 == 0)
SET16(vmeta, vdc->Primary_Element_Count, 2);
else
SET16(vmeta, vdc->Primary_Element_Count,
vol->v_disks_count);
SET8(vmeta, vdc->Stripe_Size,
ffs(vol->v_strip_size / vol->v_sectorsize) - 1);
if (vol->v_raid_level == G_RAID_VOLUME_RL_RAID1E &&
vol->v_disks_count % 2 == 0) {
SET8(vmeta, vdc->Primary_RAID_Level,
DDF_VDCR_RAID1);
SET8(vmeta, vdc->RLQ, 0);
SET8(vmeta, vdc->Secondary_Element_Count,
vol->v_disks_count / 2);
SET8(vmeta, vdc->Secondary_RAID_Level, 0);
} else {
SET8(vmeta, vdc->Primary_RAID_Level,
vol->v_raid_level);
SET8(vmeta, vdc->RLQ,
vol->v_raid_level_qualifier);
SET8(vmeta, vdc->Secondary_Element_Count, 1);
SET8(vmeta, vdc->Secondary_RAID_Level, 0);
}
SET8(vmeta, vdc->Secondary_Element_Seq, 0);
SET64(vmeta, vdc->Block_Count, 0);
SET64(vmeta, vdc->VD_Size, vol->v_mediasize / vol->v_sectorsize);
SET16(vmeta, vdc->Block_Size, vol->v_sectorsize);
SET8(vmeta, vdc->Rotate_Parity_count,
fls(vol->v_rotate_parity) - 1);
SET8(vmeta, vdc->MDF_Parity_Disks, vol->v_mdf_pdisks);
SET16(vmeta, vdc->MDF_Parity_Generator_Polynomial,
vol->v_mdf_polynomial);
SET8(vmeta, vdc->MDF_Constant_Generation_Method,
vol->v_mdf_method);
SET16(vmeta, vde->VD_Number, vol->v_global_id);
if (vol->v_state <= G_RAID_VOLUME_S_BROKEN)
SET8(vmeta, vde->VD_State, DDF_VDE_FAILED);
else if (vol->v_state <= G_RAID_VOLUME_S_DEGRADED)
SET8(vmeta, vde->VD_State, DDF_VDE_DEGRADED);
else if (vol->v_state <= G_RAID_VOLUME_S_SUBOPTIMAL)
SET8(vmeta, vde->VD_State, DDF_VDE_PARTIAL);
else
SET8(vmeta, vde->VD_State, DDF_VDE_OPTIMAL);
if (vol->v_dirty ||
g_raid_nsubdisks(vol, G_RAID_SUBDISK_S_STALE) > 0 ||
g_raid_nsubdisks(vol, G_RAID_SUBDISK_S_RESYNC) > 0)
SET8(vmeta, vde->VD_State,
GET8(vmeta, vde->VD_State) | DDF_VDE_DIRTY);
SET8(vmeta, vde->Init_State, DDF_VDE_INIT_FULL); // XXX
ddf_meta_put_name(vmeta, vol->v_name);
for (i = 0; i < vol->v_disks_count; i++) {
sd = &vol->v_subdisks[i];
bvd = i / GET16(vmeta, vdc->Primary_Element_Count);
pos = i % GET16(vmeta, vdc->Primary_Element_Count);
disk = sd->sd_disk;
if (disk != NULL) {
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
if (vmeta->bvdc[bvd] == NULL) {
size = GET16(vmeta,
hdr->Configuration_Record_Length) *
vmeta->sectorsize;
vmeta->bvdc[bvd] = malloc(size,
M_MD_DDF, M_WAITOK);
memset(vmeta->bvdc[bvd], 0xff, size);
}
memcpy(vmeta->bvdc[bvd], vmeta->vdc,
sizeof(struct ddf_vdc_record));
SET8(vmeta, bvdc[bvd]->Secondary_Element_Seq, bvd);
SET64(vmeta, bvdc[bvd]->Block_Count,
sd->sd_size / vol->v_sectorsize);
SET32(vmeta, bvdc[bvd]->Physical_Disk_Sequence[pos],
GET32(&pd->pd_meta, pdd->PD_Reference));
val2 = (uint64_t *)&(vmeta->bvdc[bvd]->Physical_Disk_Sequence[
GET16(vmeta, hdr->Max_Primary_Element_Entries)]);
SET64P(vmeta, val2 + pos,
sd->sd_offset / vol->v_sectorsize);
}
if (vmeta->bvdc[bvd] == NULL)
continue;
j = ddf_meta_find_pd(gmeta, NULL,
GET32(vmeta, bvdc[bvd]->Physical_Disk_Sequence[pos]));
if (j < 0)
continue;
SET32(gmeta, pdr->entry[j].PD_Type,
GET32(gmeta, pdr->entry[j].PD_Type) |
DDF_PDE_PARTICIPATING);
if (sd->sd_state == G_RAID_SUBDISK_S_NONE)
SET32(gmeta, pdr->entry[j].PD_State,
GET32(gmeta, pdr->entry[j].PD_State) |
(DDF_PDE_FAILED | DDF_PDE_MISSING));
else if (sd->sd_state == G_RAID_SUBDISK_S_FAILED)
SET32(gmeta, pdr->entry[j].PD_State,
GET32(gmeta, pdr->entry[j].PD_State) |
(DDF_PDE_FAILED | DDF_PDE_PFA));
else if (sd->sd_state <= G_RAID_SUBDISK_S_REBUILD)
SET32(gmeta, pdr->entry[j].PD_State,
GET32(gmeta, pdr->entry[j].PD_State) |
DDF_PDE_REBUILD);
else
SET32(gmeta, pdr->entry[j].PD_State,
GET32(gmeta, pdr->entry[j].PD_State) |
DDF_PDE_ONLINE);
}
}
/* Mark spare and failed disks as such. */
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
i = ddf_meta_find_pd(gmeta, NULL,
GET32(&pd->pd_meta, pdd->PD_Reference));
if (i < 0)
continue;
if (disk->d_state == G_RAID_DISK_S_FAILED) {
SET32(gmeta, pdr->entry[i].PD_State,
GET32(gmeta, pdr->entry[i].PD_State) |
(DDF_PDE_FAILED | DDF_PDE_PFA));
}
if (disk->d_state != G_RAID_DISK_S_SPARE)
continue;
sa = ddf_meta_find_sa(&pd->pd_meta, 0);
if (sa == NULL ||
(GET8D(&pd->pd_meta, sa->Spare_Type) &
DDF_SAR_TYPE_DEDICATED) == 0) {
SET16(gmeta, pdr->entry[i].PD_Type,
GET16(gmeta, pdr->entry[i].PD_Type) |
DDF_PDE_GLOBAL_SPARE);
} else {
SET16(gmeta, pdr->entry[i].PD_Type,
GET16(gmeta, pdr->entry[i].PD_Type) |
DDF_PDE_CONFIG_SPARE);
}
SET32(gmeta, pdr->entry[i].PD_State,
GET32(gmeta, pdr->entry[i].PD_State) |
DDF_PDE_ONLINE);
}
/* Remove disks without "participating" flag (unused). */
for (i = 0, j = -1; i < GET16(gmeta, pdr->Populated_PDEs); i++) {
if (isff(gmeta->pdr->entry[i].PD_GUID, 24))
continue;
if ((GET16(gmeta, pdr->entry[i].PD_Type) &
(DDF_PDE_PARTICIPATING |
DDF_PDE_GLOBAL_SPARE | DDF_PDE_CONFIG_SPARE)) != 0 ||
g_raid_md_ddf_get_disk(sc,
NULL, GET32(gmeta, pdr->entry[i].PD_Reference)) != NULL)
j = i;
else
memset(&gmeta->pdr->entry[i], 0xff,
sizeof(struct ddf_pd_entry));
}
SET16(gmeta, pdr->Populated_PDEs, j + 1);
/* Update per-disk metadata and write them. */
TAILQ_FOREACH(disk, &sc->sc_disks, d_next) {
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
if (disk->d_state != G_RAID_DISK_S_ACTIVE &&
disk->d_state != G_RAID_DISK_S_SPARE)
continue;
/* Update PDR. */
memcpy(pd->pd_meta.pdr, gmeta->pdr,
GET32(&pd->pd_meta, hdr->pdr_length) *
pd->pd_meta.sectorsize);
/* Update VDR. */
SET16(&pd->pd_meta, vdr->Populated_VDEs, 0);
TAILQ_FOREACH(vol, &sc->sc_volumes, v_next) {
if (vol->v_stopping)
continue;
pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data;
i = ddf_meta_find_vd(&pd->pd_meta,
pv->pv_meta.vde->VD_GUID);
if (i < 0)
i = ddf_meta_find_vd(&pd->pd_meta, NULL);
if (i >= 0)
memcpy(&pd->pd_meta.vdr->entry[i],
pv->pv_meta.vde,
sizeof(struct ddf_vd_entry));
}
/* Update VDC. */
if (mdi->mdio_starting == 0) {
/* Remove all VDCs to restore needed later. */
j = GETCRNUM(&pd->pd_meta);
for (i = 0; i < j; i++) {
vdc = GETVDCPTR(&pd->pd_meta, i);
if (GET32D(&pd->pd_meta, vdc->Signature) !=
DDF_VDCR_SIGNATURE)
continue;
SET32D(&pd->pd_meta, vdc->Signature, 0xffffffff);
}
}
TAILQ_FOREACH(sd, &disk->d_subdisks, sd_next) {
vol = sd->sd_volume;
if (vol->v_stopping)
continue;
pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data;
vmeta = &pv->pv_meta;
vdc = ddf_meta_find_vdc(&pd->pd_meta,
vmeta->vde->VD_GUID);
if (vdc == NULL)
vdc = ddf_meta_find_vdc(&pd->pd_meta, NULL);
if (vdc != NULL) {
bvd = sd->sd_pos / GET16(vmeta,
vdc->Primary_Element_Count);
memcpy(vdc, vmeta->bvdc[bvd],
GET16(&pd->pd_meta,
hdr->Configuration_Record_Length) *
pd->pd_meta.sectorsize);
}
}
G_RAID_DEBUG(1, "Writing DDF metadata to %s",
g_raid_get_diskname(disk));
g_raid_md_ddf_print(&pd->pd_meta);
ddf_meta_write(disk->d_consumer, &pd->pd_meta);
}
return (0);
}
static int
g_raid_md_fail_disk_ddf(struct g_raid_md_object *md,
struct g_raid_subdisk *tsd, struct g_raid_disk *tdisk)
{
struct g_raid_softc *sc;
struct g_raid_md_ddf_perdisk *pd;
struct g_raid_subdisk *sd;
int i;
sc = md->mdo_softc;
pd = (struct g_raid_md_ddf_perdisk *)tdisk->d_md_data;
/* We can't fail disk that is not a part of array now. */
if (tdisk->d_state != G_RAID_DISK_S_ACTIVE)
return (-1);
/*
* Mark disk as failed in metadata and try to write that metadata
* to the disk itself to prevent it's later resurrection as STALE.
*/
G_RAID_DEBUG(1, "Writing DDF metadata to %s",
g_raid_get_diskname(tdisk));
i = ddf_meta_find_pd(&pd->pd_meta, NULL, GET32(&pd->pd_meta, pdd->PD_Reference));
SET16(&pd->pd_meta, pdr->entry[i].PD_State, DDF_PDE_FAILED | DDF_PDE_PFA);
if (tdisk->d_consumer != NULL)
ddf_meta_write(tdisk->d_consumer, &pd->pd_meta);
/* Change states. */
g_raid_change_disk_state(tdisk, G_RAID_DISK_S_FAILED);
TAILQ_FOREACH(sd, &tdisk->d_subdisks, sd_next) {
g_raid_change_subdisk_state(sd,
G_RAID_SUBDISK_S_FAILED);
g_raid_event_send(sd, G_RAID_SUBDISK_E_FAILED,
G_RAID_EVENT_SUBDISK);
}
/* Write updated metadata to remaining disks. */
g_raid_md_write_ddf(md, NULL, NULL, tdisk);
g_raid_md_ddf_refill(sc);
return (0);
}
static int
g_raid_md_free_disk_ddf(struct g_raid_md_object *md,
struct g_raid_disk *disk)
{
struct g_raid_md_ddf_perdisk *pd;
pd = (struct g_raid_md_ddf_perdisk *)disk->d_md_data;
ddf_meta_free(&pd->pd_meta);
free(pd, M_MD_DDF);
disk->d_md_data = NULL;
return (0);
}
static int
g_raid_md_free_volume_ddf(struct g_raid_md_object *md,
struct g_raid_volume *vol)
{
struct g_raid_md_ddf_object *mdi;
struct g_raid_md_ddf_pervolume *pv;
mdi = (struct g_raid_md_ddf_object *)md;
pv = (struct g_raid_md_ddf_pervolume *)vol->v_md_data;
ddf_vol_meta_free(&pv->pv_meta);
if (!pv->pv_started) {
pv->pv_started = 1;
mdi->mdio_starting--;
callout_stop(&pv->pv_start_co);
}
free(pv, M_MD_DDF);
vol->v_md_data = NULL;
return (0);
}
static int
g_raid_md_free_ddf(struct g_raid_md_object *md)
{
struct g_raid_md_ddf_object *mdi;
mdi = (struct g_raid_md_ddf_object *)md;
if (!mdi->mdio_started) {
mdi->mdio_started = 0;
callout_stop(&mdi->mdio_start_co);
G_RAID_DEBUG1(1, md->mdo_softc,
"root_mount_rel %p", mdi->mdio_rootmount);
root_mount_rel(mdi->mdio_rootmount);
mdi->mdio_rootmount = NULL;
}
ddf_meta_free(&mdi->mdio_meta);
return (0);
}
G_RAID_MD_DECLARE(ddf, "DDF");
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