/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2006-2007 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2006-2009 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
#include "sha1.h"
#include <values.h>
-static inline int ROUND_UP(int a, int base)
-{
- return ((a+base-1)/base)*base;
-}
-
/* a non-official T10 name for creation GUIDs */
static char T10[] = "Linux-MD";
#define DDF_CONCAT 0x1f
#define DDF_RAID5E 0x15
#define DDF_RAID5EE 0x25
-#define DDF_RAID6 0x16 /* Vendor unique layout */
+#define DDF_RAID6 0x06
/* Raid Level Qualifier (RLQ) */
#define DDF_RAID0_SIMPLE 0x00
#define DDF_RAID4_N 0x01 /* parity in last extent */
/* these apply to raid5e and raid5ee as well */
#define DDF_RAID5_0_RESTART 0x00 /* same as 'right asymmetric' - layout 1 */
+#define DDF_RAID6_0_RESTART 0x01 /* raid6 different from raid5 here!!! */
#define DDF_RAID5_N_RESTART 0x02 /* same as 'left asymmetric' - layout 0 */
#define DDF_RAID5_N_CONTINUE 0x03 /* same as 'left symmetric' - layout 2 */
#define DDF_BBM_LOG_MAGIC __cpu_to_be32(0xABADB10C)
#define DDF_GUID_LEN 24
-#define DDF_REVISION "01.00.00"
+#define DDF_REVISION_0 "01.00.00"
+#define DDF_REVISION_2 "01.02.00"
struct ddf_header {
__u32 magic; /* DDF_HEADER_MAGIC */
__u32 crc;
char guid[DDF_GUID_LEN];
- char revision[8]; /* 01.00.00 */
+ char revision[8]; /* 01.02.00 */
__u32 seq; /* starts at '1' */
__u32 timestamp;
__u8 openflag;
* built in Create or Assemble to describe the whole array.
*/
struct ddf_super {
- struct ddf_header anchor, primary, secondary, *active;
+ struct ddf_header anchor, primary, secondary;
struct ddf_controller_data controller;
+ struct ddf_header *active;
struct phys_disk *phys;
struct virtual_disk *virt;
int pdsize, vdsize;
int max_part, mppe, conf_rec_len;
+ int currentdev;
+ int updates_pending;
struct vcl {
- struct vcl *next;
- __u64 *lba_offset; /* location in 'conf' of
- * the lba table */
+ union {
+ char space[512];
+ struct {
+ struct vcl *next;
+ __u64 *lba_offset; /* location in 'conf' of
+ * the lba table */
+ int vcnum; /* index into ->virt */
+ __u64 *block_sizes; /* NULL if all the same */
+ };
+ };
struct vd_config conf;
- } *conflist, *newconf;
- int conf_num; /* Index into 'virt' of entry matching 'newconf' */
+ } *conflist, *currentconf;
struct dl {
- struct dl *next;
+ union {
+ char space[512];
+ struct {
+ struct dl *next;
+ int major, minor;
+ char *devname;
+ int fd;
+ unsigned long long size; /* sectors */
+ int pdnum; /* index in ->phys */
+ struct spare_assign *spare;
+ void *mdupdate; /* hold metadata update */
+
+ /* These fields used by auto-layout */
+ int raiddisk; /* slot to fill in autolayout */
+ __u64 esize;
+ };
+ };
struct disk_data disk;
- int major, minor;
- char *devname;
- int fd;
- int pdnum; /* index in ->phys */
- struct spare_assign *spare;
struct vcl *vlist[0]; /* max_part in size */
- } *dlist;
+ } *dlist, *add_list;
};
#ifndef offsetof
#define offsetof(t,f) ((size_t)&(((t*)0)->f))
#endif
-extern struct superswitch super_ddf_container, super_ddf_bvd, super_ddf;
static int calc_crc(void *buf, int len)
{
newcrc = crc32(0, buf, len);
ddf->crc = oldcrc;
- return newcrc;
+ /* The crc is store (like everything) bigendian, so convert
+ * here for simplicity
+ */
+ return __cpu_to_be32(newcrc);
}
static int load_ddf_header(int fd, unsigned long long lba,
/* All pre-allocated sections are a single block */
if (len != 1)
return NULL;
- } else
- buf = malloc(len<<9);
+ } else if (posix_memalign(&buf, 512, len<<9) != 0)
+ buf = NULL;
+
if (!buf)
return NULL;
devname);
return 2;
}
- if (memcmp(super->anchor.revision, DDF_REVISION, 8) != 0) {
+ if (memcmp(super->anchor.revision, DDF_REVISION_0, 8) != 0 &&
+ memcmp(super->anchor.revision, DDF_REVISION_2, 8) != 0) {
if (devname)
fprintf(stderr, Name ": can only support super revision"
- " %.8s, not %.8s on %s\n",
- DDF_REVISION, super->anchor.revision, devname);
+ " %.8s and earlier, not %.8s on %s\n",
+ DDF_REVISION_2, super->anchor.revision,devname);
return 2;
}
if (load_ddf_header(fd, __be64_to_cpu(super->anchor.primary_lba),
struct stat stb;
char *conf;
int i;
+ int confsec;
int vnum;
+ int max_virt_disks = __be16_to_cpu(super->active->max_vd_entries);
+ unsigned long long dsize;
/* First the local disk info */
- dl = malloc(sizeof(*dl) +
- (super->max_part) * sizeof(dl->vlist[0]));
+ if (posix_memalign((void**)&dl, 512,
+ sizeof(*dl) +
+ (super->max_part) * sizeof(dl->vlist[0])) != 0) {
+ fprintf(stderr, Name ": %s could not allocate disk info buffer\n",
+ __func__);
+ return 1;
+ }
load_section(fd, super, &dl->disk,
super->active->data_section_offset,
dl->minor = minor(stb.st_rdev);
dl->next = super->dlist;
dl->fd = keep ? fd : -1;
+
+ dl->size = 0;
+ if (get_dev_size(fd, devname, &dsize))
+ dl->size = dsize >> 9;
dl->spare = NULL;
for (i=0 ; i < super->max_part ; i++)
dl->vlist[i] = NULL;
super->dlist = dl;
- dl->pdnum = 0;
+ dl->pdnum = -1;
for (i=0; i < __be16_to_cpu(super->active->max_pd_entries); i++)
if (memcmp(super->phys->entries[i].guid,
dl->disk.guid, DDF_GUID_LEN) == 0)
dl->pdnum = i;
-
/* Now the config list. */
/* 'conf' is an array of config entries, some of which are
* probably invalid. Those which are good need to be copied into
0);
vnum = 0;
- for (i = 0;
- i < __be32_to_cpu(super->active->config_section_length);
- i += super->conf_rec_len) {
+ for (confsec = 0;
+ confsec < __be32_to_cpu(super->active->config_section_length);
+ confsec += super->conf_rec_len) {
struct vd_config *vd =
- (struct vd_config *)((char*)conf + i*512);
+ (struct vd_config *)((char*)conf + confsec*512);
struct vcl *vcl;
if (vd->magic == DDF_SPARE_ASSIGN_MAGIC) {
if (dl->spare)
continue;
- dl->spare = malloc(super->conf_rec_len*512);
+ if (posix_memalign((void**)&dl->spare, 512,
+ super->conf_rec_len*512) != 0) {
+ fprintf(stderr, Name
+ ": %s could not allocate spare info buf\n",
+ __func__);
+ return 1;
+ }
+
memcpy(dl->spare, vd, super->conf_rec_len*512);
continue;
}
if (__be32_to_cpu(vd->seqnum) <=
__be32_to_cpu(vcl->conf.seqnum))
continue;
- } else {
- vcl = malloc(super->conf_rec_len*512 +
- offsetof(struct vcl, conf));
+ } else {
+ if (posix_memalign((void**)&vcl, 512,
+ (super->conf_rec_len*512 +
+ offsetof(struct vcl, conf))) != 0) {
+ fprintf(stderr, Name
+ ": %s could not allocate vcl buf\n",
+ __func__);
+ return 1;
+ }
vcl->next = super->conflist;
+ vcl->block_sizes = NULL; /* FIXME not for CONCAT */
super->conflist = vcl;
dl->vlist[vnum++] = vcl;
}
memcpy(&vcl->conf, vd, super->conf_rec_len*512);
vcl->lba_offset = (__u64*)
&vcl->conf.phys_refnum[super->mppe];
+
+ for (i=0; i < max_virt_disks ; i++)
+ if (memcmp(super->virt->entries[i].guid,
+ vcl->conf.guid, DDF_GUID_LEN)==0)
+ break;
+ if (i < max_virt_disks)
+ vcl->vcnum = i;
}
free(conf);
static int load_super_ddf_all(struct supertype *st, int fd,
void **sbp, char *devname, int keep_fd);
#endif
+
+static void free_super_ddf(struct supertype *st);
+
static int load_super_ddf(struct supertype *st, int fd,
char *devname)
{
int rv;
#ifndef MDASSEMBLE
+ /* if 'fd' is a container, load metadata from all the devices */
if (load_super_ddf_all(st, fd, &st->sb, devname, 1) == 0)
return 0;
#endif
+ if (st->subarray[0])
+ return 1; /* FIXME Is this correct */
if (get_dev_size(fd, devname, &dsize) == 0)
return 1;
/* 32M is a lower bound */
if (dsize <= 32*1024*1024) {
- if (devname) {
+ if (devname)
fprintf(stderr,
Name ": %s is too small for ddf: "
"size is %llu sectors.\n",
devname, dsize>>9);
- return 1;
- }
+ return 1;
}
if (dsize & 511) {
- if (devname) {
+ if (devname)
fprintf(stderr,
Name ": %s is an odd size for ddf: "
"size is %llu bytes.\n",
devname, dsize);
- return 1;
- }
+ return 1;
}
- super = malloc(sizeof(*super));
- if (!super) {
+ free_super_ddf(st);
+
+ if (posix_memalign((void**)&super, 512, sizeof(*super))!= 0) {
fprintf(stderr, Name ": malloc of %zu failed.\n",
sizeof(*super));
return 1;
return rv;
}
- load_ddf_local(fd, super, devname, 0);
+ rv = load_ddf_local(fd, super, devname, 0);
+
+ if (rv) {
+ if (devname)
+ fprintf(stderr,
+ Name ": Failed to load all information "
+ "sections on %s\n", devname);
+ free(super);
+ return rv;
+ }
+
+ if (st->subarray[0]) {
+ struct vcl *v;
+
+ for (v = super->conflist; v; v = v->next)
+ if (v->vcnum == atoi(st->subarray))
+ super->currentconf = v;
+ if (!super->currentconf) {
+ free(super);
+ return 1;
+ }
+ }
/* Should possibly check the sections .... */
st->minor_version = 0;
st->max_devs = 512;
}
+ st->loaded_container = 0;
return 0;
}
while (ddf->conflist) {
struct vcl *v = ddf->conflist;
ddf->conflist = v->next;
+ if (v->block_sizes)
+ free(v->block_sizes);
free(v);
}
while (ddf->dlist) {
return st;
}
-static struct supertype *match_metadata_desc_ddf_bvd(char *arg)
-{
- struct supertype *st;
- if (strcmp(arg, "ddf/bvd") != 0 &&
- strcmp(arg, "bvd") != 0 &&
- strcmp(arg, "default") != 0
- )
- return NULL;
-
- st = malloc(sizeof(*st));
- memset(st, 0, sizeof(*st));
- st->ss = &super_ddf_bvd;
- st->max_devs = 512;
- st->minor_version = 0;
- st->sb = NULL;
- return st;
-}
-static struct supertype *match_metadata_desc_ddf_svd(char *arg)
-{
- struct supertype *st;
- if (strcmp(arg, "ddf/svd") != 0 &&
- strcmp(arg, "svd") != 0 &&
- strcmp(arg, "default") != 0
- )
- return NULL;
-
- st = malloc(sizeof(*st));
- memset(st, 0, sizeof(*st));
- st->ss = &super_ddf_svd;
- st->max_devs = 512;
- st->minor_version = 0;
- st->sb = NULL;
- return st;
-}
#ifndef MDASSEMBLE
return map[i].num2;
}
+static int all_ff(char *guid)
+{
+ int i;
+ for (i = 0; i < DDF_GUID_LEN; i++)
+ if (guid[i] != (char)0xff)
+ return 0;
+ return 1;
+}
+
#ifndef MDASSEMBLE
static void print_guid(char *guid, int tstamp)
{
/* A GUIDs are part (or all) ASCII and part binary.
* They tend to be space padded.
- * We ignore trailing spaces and print numbers
- * <0x20 and >=0x7f as \xXX
- * Some GUIDs have a time stamp in bytes 16-19.
- * We print that if appropriate
+ * We print the GUID in HEX, then in parentheses add
+ * any initial ASCII sequence, and a possible
+ * time stamp from bytes 16-19
*/
int l = DDF_GUID_LEN;
int i;
+
+ for (i=0 ; i<DDF_GUID_LEN ; i++) {
+ if ((i&3)==0 && i != 0) printf(":");
+ printf("%02X", guid[i]&255);
+ }
+
+ printf("\n (");
while (l && guid[l-1] == ' ')
l--;
for (i=0 ; i<l ; i++) {
if (guid[i] >= 0x20 && guid[i] < 0x7f)
fputc(guid[i], stdout);
else
- fprintf(stdout, "\\x%02x", guid[i]&255);
+ break;
}
if (tstamp) {
time_t then = __be32_to_cpu(*(__u32*)(guid+16)) + DECADE;
char tbuf[100];
struct tm *tm;
tm = localtime(&then);
- strftime(tbuf, 100, " (%D %T)",tm);
+ strftime(tbuf, 100, " %D %T",tm);
fputs(tbuf, stdout);
}
+ printf(")");
}
static void examine_vd(int n, struct ddf_super *sb, char *guid)
struct vcl *vcl;
for (vcl = sb->conflist ; vcl ; vcl = vcl->next) {
+ int i;
struct vd_config *vc = &vcl->conf;
if (calc_crc(vc, crl*512) != vc->crc)
continue;
/* Ok, we know about this VD, let's give more details */
- printf(" Raid Devices[%d] : %d\n", n,
+ printf(" Raid Devices[%d] : %d (", n,
__be16_to_cpu(vc->prim_elmnt_count));
+ for (i=0; i<__be16_to_cpu(vc->prim_elmnt_count); i++) {
+ int j;
+ int cnt = __be16_to_cpu(sb->phys->used_pdes);
+ for (j=0; j<cnt; j++)
+ if (vc->phys_refnum[i] == sb->phys->entries[j].refnum)
+ break;
+ if (i) printf(" ");
+ if (j < cnt)
+ printf("%d", j);
+ else
+ printf("--");
+ }
+ printf(")\n");
+ if (vc->chunk_shift != 255)
printf(" Chunk Size[%d] : %d sectors\n", n,
1 << vc->chunk_shift);
printf(" Raid Level[%d] : %s\n", n,
map_num(ddf_sec_level, vc->srl) ?: "-unknown-");
}
printf(" Device Size[%d] : %llu\n", n,
- __be64_to_cpu(vc->blocks)/2);
+ (unsigned long long)__be64_to_cpu(vc->blocks)/2);
printf(" Array Size[%d] : %llu\n", n,
- __be64_to_cpu(vc->array_blocks)/2);
+ (unsigned long long)__be64_to_cpu(vc->array_blocks)/2);
}
}
for (i=0; i<cnt; i++) {
struct virtual_entry *ve = &sb->virt->entries[i];
+ printf("\n");
printf(" VD GUID[%d] : ", i); print_guid(ve->guid, 1);
printf("\n");
printf(" unit[%d] : %d\n", i, __be16_to_cpu(ve->unit));
int i;
struct dl *dl;
printf(" Physical Disks : %d\n", cnt);
+ printf(" Number RefNo Size Device Type/State\n");
for (i=0 ; i<cnt ; i++) {
struct phys_disk_entry *pd = &sb->phys->entries[i];
int type = __be16_to_cpu(pd->type);
int state = __be16_to_cpu(pd->state);
- printf(" PD GUID[%d] : ", i); print_guid(pd->guid, 0);
- printf("\n");
- printf(" ref[%d] : %08x\n", i,
+ //printf(" PD GUID[%d] : ", i); print_guid(pd->guid, 0);
+ //printf("\n");
+ printf(" %3d %08x ", i,
__be32_to_cpu(pd->refnum));
- printf(" mode[%d] : %s%s%s%s%s\n", i,
+ printf("%8lluK ",
+ (unsigned long long)__be64_to_cpu(pd->config_size)>>1);
+ for (dl = sb->dlist; dl ; dl = dl->next) {
+ if (dl->disk.refnum == pd->refnum) {
+ char *dv = map_dev(dl->major, dl->minor, 0);
+ if (dv) {
+ printf("%-15s", dv);
+ break;
+ }
+ }
+ }
+ if (!dl)
+ printf("%15s","");
+ printf(" %s%s%s%s%s",
(type&2) ? "active":"",
- (type&4) ? "Global Spare":"",
+ (type&4) ? "Global-Spare":"",
(type&8) ? "spare" : "",
(type&16)? ", foreign" : "",
(type&32)? "pass-through" : "");
- printf(" state[%d] : %s%s%s%s%s%s%s\n", i,
+ printf("/%s%s%s%s%s%s%s",
(state&1)? "Online": "Offline",
(state&2)? ", Failed": "",
(state&4)? ", Rebuilding": "",
(state&8)? ", in-transition": "",
- (state&16)? ", SMART errors": "",
- (state&32)? ", Unrecovered Read Errors": "",
+ (state&16)? ", SMART-errors": "",
+ (state&32)? ", Unrecovered-Read-Errors": "",
(state&64)? ", Missing" : "");
- printf(" Avail Size[%d] : %llu K\n", i,
- __be64_to_cpu(pd->config_size)>>1);
- for (dl = sb->dlist; dl ; dl = dl->next) {
- if (dl->disk.refnum == pd->refnum) {
- char *dv = map_dev(dl->major, dl->minor, 0);
- if (dv)
- printf(" Device[%d] : %s\n",
- i, dv);
- }
- }
printf("\n");
}
}
examine_pds(sb);
}
-static void brief_examine_super_ddf(struct supertype *st)
+static void getinfo_super_ddf(struct supertype *st, struct mdinfo *info);
+
+static void uuid_from_super_ddf(struct supertype *st, int uuid[4]);
+
+static void brief_examine_super_ddf(struct supertype *st, int verbose)
{
/* We just write a generic DDF ARRAY entry
- * The uuid is all hex, 6 groups of 4 bytes
*/
struct ddf_super *ddf = st->sb;
+ struct mdinfo info;
int i;
- printf("ARRAY /dev/ddf UUID=");
- for (i = 0; i < DDF_GUID_LEN; i++) {
- printf("%02x", ddf->anchor.guid[i]);
- if ((i&3) == 0 && i != 0)
- printf(":");
- }
- printf("\n");
+ char nbuf[64];
+ getinfo_super_ddf(st, &info);
+ fname_from_uuid(st, &info, nbuf, ':');
+
+ for (i=0; i<__be16_to_cpu(ddf->virt->max_vdes); i++) {
+ struct virtual_entry *ve = &ddf->virt->entries[i];
+ struct vcl vcl;
+ char nbuf1[64];
+ if (all_ff(ve->guid))
+ continue;
+ memcpy(vcl.conf.guid, ve->guid, DDF_GUID_LEN);
+ ddf->currentconf =&vcl;
+ uuid_from_super_ddf(st, info.uuid);
+ fname_from_uuid(st, &info, nbuf1, ':');
+ printf("ARRAY container=%s member=%d UUID=%s\n",
+ nbuf+5, i, nbuf1+5);
+ }
+ printf("ARRAY metadata=ddf UUID=%s\n", nbuf + 5);
+}
+
+static void export_examine_super_ddf(struct supertype *st)
+{
+ struct mdinfo info;
+ char nbuf[64];
+ getinfo_super_ddf(st, &info);
+ fname_from_uuid(st, &info, nbuf, ':');
+ printf("MD_METADATA=ddf\n");
+ printf("MD_LEVEL=container\n");
+ printf("MD_UUID=%s\n", nbuf+5);
}
+
static void detail_super_ddf(struct supertype *st, char *homehost)
{
* Can that be stored in ddf_super??
*/
// struct ddf_super *ddf = st->sb;
+ struct mdinfo info;
+ char nbuf[64];
+ getinfo_super_ddf(st, &info);
+ fname_from_uuid(st, &info, nbuf,':');
+ printf(" UUID=%s", nbuf + 5);
}
-
-
#endif
static int match_home_ddf(struct supertype *st, char *homehost)
ddf->controller.vendor_data[len] == 0);
}
+#ifndef MDASSEMBLE
static struct vd_config *find_vdcr(struct ddf_super *ddf, int inst)
{
struct vcl *v;
- if (inst < 0 || inst > __be16_to_cpu(ddf->virt->populated_vdes))
- return NULL;
+
for (v = ddf->conflist; v; v = v->next)
- if (memcmp(v->conf.guid,
- ddf->virt->entries[inst].guid,
- DDF_GUID_LEN) == 0)
+ if (inst == v->vcnum)
return &v->conf;
return NULL;
}
+#endif
static int find_phys(struct ddf_super *ddf, __u32 phys_refnum)
{
* uuid to put into bitmap file (Create, Grow)
* uuid for backup header when saving critical section (Grow)
* comparing uuids when re-adding a device into an array
+ * In these cases the uuid required is that of the data-array,
+ * not the device-set.
+ * uuid to recognise same set when adding a missing device back
+ * to an array. This is a uuid for the device-set.
+ *
* For each of these we can make do with a truncated
* or hashed uuid rather than the original, as long as
* everyone agrees.
- * In each case the uuid required is that of the data-array,
- * not the device-set.
* In the case of SVD we assume the BVD is of interest,
* though that might be the case if a bitmap were made for
* a mirrored SVD - worry about that later.
* The first 16 bytes of the sha1 of these is used.
*/
struct ddf_super *ddf = st->sb;
- struct vd_config *vd = find_vdcr(ddf, ddf->conf_num);
-
- if (!vd)
- memset(uuid, 0, sizeof (uuid));
- else {
- char buf[20];
- struct sha1_ctx ctx;
- sha1_init_ctx(&ctx);
- sha1_process_bytes(&vd->guid, DDF_GUID_LEN, &ctx);
- if (vd->sec_elmnt_count > 1)
- sha1_process_bytes(&vd->sec_elmnt_seq, 1, &ctx);
- sha1_finish_ctx(&ctx, buf);
- memcpy(uuid, buf, sizeof(uuid));
- }
+ struct vcl *vcl = ddf->currentconf;
+ char *guid;
+ char buf[20];
+ struct sha1_ctx ctx;
+
+ if (vcl)
+ guid = vcl->conf.guid;
+ else
+ guid = ddf->anchor.guid;
+
+ sha1_init_ctx(&ctx);
+ sha1_process_bytes(guid, DDF_GUID_LEN, &ctx);
+ sha1_finish_ctx(&ctx, buf);
+ memcpy(uuid, buf, 4*4);
}
+static void getinfo_super_ddf_bvd(struct supertype *st, struct mdinfo *info);
+
static void getinfo_super_ddf(struct supertype *st, struct mdinfo *info)
{
struct ddf_super *ddf = st->sb;
- int i;
- info->array.major_version = 1000;
- info->array.minor_version = 0; /* FIXME use ddf->revision somehow */
- info->array.patch_version = 0;
+ if (ddf->currentconf) {
+ getinfo_super_ddf_bvd(st, info);
+ return;
+ }
+
info->array.raid_disks = __be16_to_cpu(ddf->phys->used_pdes);
info->array.level = LEVEL_CONTAINER;
info->array.layout = 0;
info->array.utime = 0;
info->array.chunk_size = 0;
-// info->data_offset = ???;
-// info->component_size = ???;
info->disk.major = 0;
info->disk.minor = 0;
if (ddf->dlist) {
info->disk.number = __be32_to_cpu(ddf->dlist->disk.refnum);
- info->disk.raid_disk = -1;
- for (i = 0; i < __be16_to_cpu(ddf->phys->max_pdes) ; i++)
- if (ddf->phys->entries[i].refnum ==
- ddf->dlist->disk.refnum) {
- info->disk.raid_disk = i;
- break;
- }
+ info->disk.raid_disk = find_phys(ddf, ddf->dlist->disk.refnum);
+
+ info->data_offset = __be64_to_cpu(ddf->phys->
+ entries[info->disk.raid_disk].
+ config_size);
+ info->component_size = ddf->dlist->size - info->data_offset;
} else {
info->disk.number = -1;
+ info->disk.raid_disk = -1;
// info->disk.raid_disk = find refnum in the table and use index;
}
info->disk.state = (1 << MD_DISK_SYNC);
+
info->reshape_active = 0;
+ info->name[0] = 0;
+ info->array.major_version = -1;
+ info->array.minor_version = -2;
strcpy(info->text_version, "ddf");
+ info->safe_mode_delay = 0;
-// uuid_from_super_ddf(info->uuid, sbv);
-
-// info->name[] ?? ;
-}
-
-static void getinfo_super_n_container(struct supertype *st, struct mdinfo *info)
-{
- /* just need offset and size */
- struct ddf_super *ddf = st->sb;
- int n = info->disk.number;
+ uuid_from_super_ddf(st, info->uuid);
- info->data_offset = __be64_to_cpu(ddf->phys->entries[n].config_size);
- info->component_size = 32*1024*1024 / 512;
}
static int rlq_to_layout(int rlq, int prl, int raiddisks);
static void getinfo_super_ddf_bvd(struct supertype *st, struct mdinfo *info)
{
struct ddf_super *ddf = st->sb;
- struct vd_config *vd = find_vdcr(ddf, info->container_member);
+ struct vcl *vc = ddf->currentconf;
+ int cd = ddf->currentdev;
+ int j;
+ struct dl *dl;
/* FIXME this returns BVD info - what if we want SVD ?? */
- info->array.major_version = 1000;
- info->array.minor_version = 0; /* FIXME use ddf->revision somehow */
- info->array.patch_version = 0;
- info->array.raid_disks = __be16_to_cpu(vd->prim_elmnt_count);
- info->array.level = map_num1(ddf_level_num, vd->prl);
- info->array.layout = rlq_to_layout(vd->rlq, vd->prl,
+ info->array.raid_disks = __be16_to_cpu(vc->conf.prim_elmnt_count);
+ info->array.level = map_num1(ddf_level_num, vc->conf.prl);
+ info->array.layout = rlq_to_layout(vc->conf.rlq, vc->conf.prl,
info->array.raid_disks);
info->array.md_minor = -1;
- info->array.ctime = DECADE + __be32_to_cpu(*(__u32*)(vd->guid+16));
- info->array.utime = DECADE + __be32_to_cpu(vd->timestamp);
- info->array.chunk_size = 512 << vd->chunk_shift;
-
-// info->data_offset = ???;
-// info->component_size = ???;
+ info->array.ctime = DECADE +
+ __be32_to_cpu(*(__u32*)(vc->conf.guid+16));
+ info->array.utime = DECADE + __be32_to_cpu(vc->conf.timestamp);
+ info->array.chunk_size = 512 << vc->conf.chunk_shift;
+ info->custom_array_size = 0;
+
+ if (cd >= 0 && cd < ddf->mppe) {
+ info->data_offset = __be64_to_cpu(vc->lba_offset[cd]);
+ if (vc->block_sizes)
+ info->component_size = vc->block_sizes[cd];
+ else
+ info->component_size = __be64_to_cpu(vc->conf.blocks);
+ }
+ for (dl = ddf->dlist; dl ; dl = dl->next)
+ if (dl->raiddisk == info->disk.raid_disk)
+ break;
info->disk.major = 0;
info->disk.minor = 0;
+ if (dl) {
+ info->disk.major = dl->major;
+ info->disk.minor = dl->minor;
+ }
// info->disk.number = __be32_to_cpu(ddf->disk.refnum);
// info->disk.raid_disk = find refnum in the table and use index;
// info->disk.state = ???;
+ info->container_member = ddf->currentconf->vcnum;
+
info->resync_start = 0;
if (!(ddf->virt->entries[info->container_member].state
& DDF_state_inconsistent) &&
uuid_from_super_ddf(st, info->uuid);
- sprintf(info->text_version, "/%s/%d",
+ info->container_member = atoi(st->subarray);
+ info->array.major_version = -1;
+ info->array.minor_version = -2;
+ sprintf(info->text_version, "/%s/%s",
devnum2devname(st->container_dev),
- info->container_member);
-
-// info->name[] ?? ;
+ st->subarray);
+ info->safe_mode_delay = 200;
+
+ memcpy(info->name, ddf->virt->entries[info->container_member].name, 16);
+ info->name[16]=0;
+ for(j=0; j<16; j++)
+ if (info->name[j] == ' ')
+ info->name[j] = 0;
}
-static void getinfo_super_n_bvd(struct supertype *st, struct mdinfo *info)
-{
- /* Find the particular details for info->disk.raid_disk.
- * This includes data_offset, component_size,
- */
- struct ddf_super *ddf = st->sb;
- __u64 *lba_offset = ddf->newconf->lba_offset;
- struct vd_config *conf = &ddf->newconf->conf;
- info->data_offset = __be64_to_cpu(lba_offset[info->disk.raid_disk]);
- info->component_size = __be64_to_cpu(conf->blocks);
-}
static int update_super_ddf(struct supertype *st, struct mdinfo *info,
char *update,
* grow: Array has gained a new device - this is currently for
* linear only
* resync: mark as dirty so a resync will happen.
- * uuid: Change the uuid of the array to match watch is given
+ * uuid: Change the uuid of the array to match what is given
* homehost: update the recorded homehost
* name: update the name - preserving the homehost
* _reshape_progress: record new reshape_progress position.
// struct vd_config *vd = find_vdcr(ddf, info->container_member);
// struct virtual_entry *ve = find_ve(ddf);
-
/* we don't need to handle "force-*" or "assemble" as
* there is no need to 'trick' the kernel. We the metadata is
* first updated to activate the array, all the implied modifications
return rv;
}
+__u32 random32(void)
+{
+ __u32 rv;
+ int rfd = open("/dev/urandom", O_RDONLY);
+ if (rfd < 0 || read(rfd, &rv, 4) != 4)
+ rv = random();
+ if (rfd >= 0)
+ close(rfd);
+ return rv;
+}
+
static void make_header_guid(char *guid)
{
__u32 stamp;
- int rfd;
/* Create a DDF Header of Virtual Disk GUID */
/* 24 bytes of fiction required.
memcpy(guid+12, &stamp, 4);
stamp = __cpu_to_be32(time(0) - DECADE);
memcpy(guid+16, &stamp, 4);
- rfd = open("/dev/urandom", O_RDONLY);
- if (rfd < 0 || read(rfd, &stamp, 4) != 4)
- stamp = random();
+ stamp = random32();
memcpy(guid+20, &stamp, 4);
- if (rfd >= 0) close(rfd);
}
+
+static int init_super_ddf_bvd(struct supertype *st,
+ mdu_array_info_t *info,
+ unsigned long long size,
+ char *name, char *homehost,
+ int *uuid);
+
static int init_super_ddf(struct supertype *st,
mdu_array_info_t *info,
unsigned long long size, char *name, char *homehost,
struct phys_disk *pd;
struct virtual_disk *vd;
- ddf = malloc(sizeof(*ddf));
+ if (!info) {
+ st->sb = NULL;
+ return 0;
+ }
+ if (st->sb)
+ return init_super_ddf_bvd(st, info, size, name, homehost,
+ uuid);
+
+ if (posix_memalign((void**)&ddf, 512, sizeof(*ddf)) != 0) {
+ fprintf(stderr, Name ": %s could not allocate superblock\n", __func__);
+ return 0;
+ }
+ memset(ddf, 0, sizeof(*ddf));
ddf->dlist = NULL; /* no physical disks yet */
ddf->conflist = NULL; /* No virtual disks yet */
ddf->anchor.magic = DDF_HEADER_MAGIC;
make_header_guid(ddf->anchor.guid);
- memcpy(ddf->anchor.revision, DDF_REVISION, 8);
+ memcpy(ddf->anchor.revision, DDF_REVISION_2, 8);
ddf->anchor.seq = __cpu_to_be32(1);
ddf->anchor.timestamp = __cpu_to_be32(time(0) - DECADE);
ddf->anchor.openflag = 0xFF;
ddf->anchor.max_vd_entries = __cpu_to_be16(max_virt_disks); /* ?? */
ddf->anchor.max_partitions = __cpu_to_be16(64); /* ?? */
ddf->max_part = 64;
- ddf->conf_rec_len = 1 + 256 * 12 / 512;
- ddf->anchor.config_record_len = __cpu_to_be16(ddf->conf_rec_len);
- ddf->anchor.max_primary_element_entries = __cpu_to_be16(256);
ddf->mppe = 256;
+ ddf->conf_rec_len = 1 + ROUND_UP(ddf->mppe * (4+8), 512)/512;
+ ddf->anchor.config_record_len = __cpu_to_be16(ddf->conf_rec_len);
+ ddf->anchor.max_primary_element_entries = __cpu_to_be16(ddf->mppe);
memset(ddf->anchor.pad3, 0xff, 54);
-
/* controller sections is one sector long immediately
* after the ddf header */
sector = 1;
__cpu_to_be32(vdsize/512); /* max_vd_entries/8 */
sector += vdsize/512;
- clen = (1 + 256*12/512) * (64+1);
+ clen = ddf->conf_rec_len * (ddf->max_part+1);
ddf->anchor.config_section_offset = __cpu_to_be32(sector);
ddf->anchor.config_section_length = __cpu_to_be32(clen);
sector += clen;
memcpy(ddf->controller.product_id, "What Is My PID??", 16);
memset(ddf->controller.pad, 0xff, 8);
memset(ddf->controller.vendor_data, 0xff, 448);
+ if (homehost && strlen(homehost) < 440)
+ strcpy((char*)ddf->controller.vendor_data, homehost);
- pd = ddf->phys = malloc(pdsize);
+ if (posix_memalign((void**)&pd, 512, pdsize) != 0) {
+ fprintf(stderr, Name ": %s could not allocate pd\n", __func__);
+ return 0;
+ }
+ ddf->phys = pd;
ddf->pdsize = pdsize;
memset(pd, 0xff, pdsize);
pd->max_pdes = __cpu_to_be16(max_phys_disks);
memset(pd->pad, 0xff, 52);
- vd = ddf->virt = malloc(vdsize);
+ if (posix_memalign((void**)&vd, 512, vdsize) != 0) {
+ fprintf(stderr, Name ": %s could not allocate vd\n", __func__);
+ return 0;
+ }
+ ddf->virt = vd;
ddf->vdsize = vdsize;
memset(vd, 0, vdsize);
vd->magic = DDF_VIRT_RECORDS_MAGIC;
memset(&vd->entries[i], 0xff, sizeof(struct virtual_entry));
st->sb = ddf;
+ ddf->updates_pending = 1;
return 1;
}
-static int all_ff(char *guid)
-{
- int i;
- for (i = 0; i < DDF_GUID_LEN; i++)
- if (guid[i] != (char)0xff)
- return 0;
- return 1;
-}
static int chunk_to_shift(int chunksize)
{
return ffs(chunksize/512)-1;
}
break;
case 5:
- case 6:
switch(layout) {
case ALGORITHM_LEFT_ASYMMETRIC:
return DDF_RAID5_N_RESTART;
case ALGORITHM_RIGHT_SYMMETRIC:
return -1; /* not mentioned in standard */
}
+ case 6:
+ switch(layout) {
+ case ALGORITHM_ROTATING_N_RESTART:
+ return DDF_RAID5_N_RESTART;
+ case ALGORITHM_ROTATING_ZERO_RESTART:
+ return DDF_RAID6_0_RESTART;
+ case ALGORITHM_ROTATING_N_CONTINUE:
+ return DDF_RAID5_N_CONTINUE;
+ }
}
return -1;
}
return -1; /* FIXME this isn't checked */
}
case DDF_RAID5:
- case DDF_RAID6:
switch(rlq) {
case DDF_RAID5_N_RESTART:
return ALGORITHM_LEFT_ASYMMETRIC;
default:
return -1;
}
+ case DDF_RAID6:
+ switch(rlq) {
+ case DDF_RAID5_N_RESTART:
+ return ALGORITHM_ROTATING_N_RESTART;
+ case DDF_RAID6_0_RESTART:
+ return ALGORITHM_ROTATING_ZERO_RESTART;
+ case DDF_RAID5_N_CONTINUE:
+ return ALGORITHM_ROTATING_N_CONTINUE;
+ default:
+ return -1;
+ }
}
return -1;
}
+#ifndef MDASSEMBLE
+struct extent {
+ unsigned long long start, size;
+};
+static int cmp_extent(const void *av, const void *bv)
+{
+ const struct extent *a = av;
+ const struct extent *b = bv;
+ if (a->start < b->start)
+ return -1;
+ if (a->start > b->start)
+ return 1;
+ return 0;
+}
+
+static struct extent *get_extents(struct ddf_super *ddf, struct dl *dl)
+{
+ /* find a list of used extents on the give physical device
+ * (dnum) of the given ddf.
+ * Return a malloced array of 'struct extent'
+
+FIXME ignore DDF_Legacy devices?
+
+ */
+ struct extent *rv;
+ int n = 0;
+ int i, j;
+
+ rv = malloc(sizeof(struct extent) * (ddf->max_part + 2));
+ if (!rv)
+ return NULL;
+
+ for (i = 0; i < ddf->max_part; i++) {
+ struct vcl *v = dl->vlist[i];
+ if (v == NULL)
+ continue;
+ for (j=0; j < v->conf.prim_elmnt_count; j++)
+ if (v->conf.phys_refnum[j] == dl->disk.refnum) {
+ /* This device plays role 'j' in 'v'. */
+ rv[n].start = __be64_to_cpu(v->lba_offset[j]);
+ rv[n].size = __be64_to_cpu(v->conf.blocks);
+ n++;
+ break;
+ }
+ }
+ qsort(rv, n, sizeof(*rv), cmp_extent);
+
+ rv[n].start = __be64_to_cpu(ddf->phys->entries[dl->pdnum].config_size);
+ rv[n].size = 0;
+ return rv;
+}
+#endif
+
static int init_super_ddf_bvd(struct supertype *st,
mdu_array_info_t *info,
unsigned long long size,
return 0;
}
ve = &ddf->virt->entries[venum];
- ddf->conf_num = venum;
/* A Virtual Disk GUID contains the T10 Vendor ID, controller type,
* timestamp, random number
__cpu_to_be16(__be16_to_cpu(ddf->virt->populated_vdes)+1);
/* Now create a new vd_config */
- vcl = malloc(offsetof(struct vcl, conf) + ddf->conf_rec_len * 512);
+ if (posix_memalign((void**)&vcl, 512,
+ (offsetof(struct vcl, conf) + ddf->conf_rec_len * 512)) != 0) {
+ fprintf(stderr, Name ": %s could not allocate vd_config\n", __func__);
+ return 0;
+ }
vcl->lba_offset = (__u64*) &vcl->conf.phys_refnum[ddf->mppe];
+ vcl->vcnum = venum;
+ sprintf(st->subarray, "%d", venum);
+ vcl->block_sizes = NULL; /* FIXME not for CONCAT */
vc = &vcl->conf;
memset(vc->vendor, 0xff, 32);
memset(vc->phys_refnum, 0xff, 4*ddf->mppe);
- memset(vc->phys_refnum+(ddf->mppe * 4), 0x00, 8*ddf->mppe);
+ memset(vc->phys_refnum+ddf->mppe, 0x00, 8*ddf->mppe);
vcl->next = ddf->conflist;
ddf->conflist = vcl;
- ddf->newconf = vcl;
+ ddf->currentconf = vcl;
+ ddf->updates_pending = 1;
return 1;
}
+#ifndef MDASSEMBLE
static void add_to_super_ddf_bvd(struct supertype *st,
mdu_disk_info_t *dk, int fd, char *devname)
{
* the phys_refnum and lba_offset for the newly created vd_config.
* We might also want to update the type in the phys_disk
* section.
+ *
+ * Alternately: fd == -1 and we have already chosen which device to
+ * use and recorded in dlist->raid_disk;
*/
struct dl *dl;
struct ddf_super *ddf = st->sb;
__u64 *lba_offset;
int working;
int i;
- int max_virt_disks;
+ unsigned long long blocks, pos, esize;
+ struct extent *ex;
- for (dl = ddf->dlist; dl ; dl = dl->next)
- if (dl->major == dk->major &&
- dl->minor == dk->minor)
- break;
+ if (fd == -1) {
+ for (dl = ddf->dlist; dl ; dl = dl->next)
+ if (dl->raiddisk == dk->raid_disk)
+ break;
+ } else {
+ for (dl = ddf->dlist; dl ; dl = dl->next)
+ if (dl->major == dk->major &&
+ dl->minor == dk->minor)
+ break;
+ }
if (!dl || ! (dk->state & (1<<MD_DISK_SYNC)))
return;
- vc = &ddf->newconf->conf;
- lba_offset = ddf->newconf->lba_offset;
- vc->phys_refnum[dk->raid_disk] = dl->disk.refnum;
- lba_offset[dk->raid_disk] = 0; /* FIXME */
+ vc = &ddf->currentconf->conf;
+ lba_offset = ddf->currentconf->lba_offset;
- for (i=0; i < ddf->max_part ; i++)
- if (dl->vlist[i] == NULL)
- break;
+ ex = get_extents(ddf, dl);
+ if (!ex)
+ return;
+
+ i = 0; pos = 0;
+ blocks = __be64_to_cpu(vc->blocks);
+ if (ddf->currentconf->block_sizes)
+ blocks = ddf->currentconf->block_sizes[dk->raid_disk];
+
+ do {
+ esize = ex[i].start - pos;
+ if (esize >= blocks)
+ break;
+ pos = ex[i].start + ex[i].size;
+ i++;
+ } while (ex[i-1].size);
+
+ free(ex);
+ if (esize < blocks)
+ return;
+
+ ddf->currentdev = dk->raid_disk;
+ vc->phys_refnum[dk->raid_disk] = dl->disk.refnum;
+ lba_offset[dk->raid_disk] = __cpu_to_be64(pos);
+
+ for (i=0; i < ddf->max_part ; i++)
+ if (dl->vlist[i] == NULL)
+ break;
if (i == ddf->max_part)
return;
- dl->vlist[i] = ddf->newconf;
+ dl->vlist[i] = ddf->currentconf;
- dl->fd = fd;
- dl->devname = devname;
+ if (fd >= 0)
+ dl->fd = fd;
+ if (devname)
+ dl->devname = devname;
/* Check how many working raid_disks, and if we can mark
* array as optimal yet
for (i=0; i < __be16_to_cpu(vc->prim_elmnt_count); i++)
if (vc->phys_refnum[i] != 0xffffffff)
working++;
+
/* Find which virtual_entry */
- max_virt_disks = __be16_to_cpu(ddf->active->max_vd_entries);
- for (i=0; i < max_virt_disks ; i++)
- if (memcmp(ddf->virt->entries[i].guid,
- vc->guid, DDF_GUID_LEN)==0)
- break;
- if (i == max_virt_disks)
- return;
+ i = ddf->currentconf->vcnum;
if (working == __be16_to_cpu(vc->prim_elmnt_count))
ddf->virt->entries[i].state =
(ddf->virt->entries[i].state & ~DDF_state_mask)
ddf->phys->entries[dl->pdnum].type &= ~__cpu_to_be16(DDF_Global_Spare);
ddf->phys->entries[dl->pdnum].type |= __cpu_to_be16(DDF_Active_in_VD);
+ ddf->updates_pending = 1;
}
/* add a device to a container, either while creating it or while
* expanding a pre-existing container
*/
-static void add_to_super_ddf(struct supertype *st,
+static int add_to_super_ddf(struct supertype *st,
mdu_disk_info_t *dk, int fd, char *devname)
{
struct ddf_super *ddf = st->sb;
int n, i;
struct stat stb;
+ if (ddf->currentconf) {
+ add_to_super_ddf_bvd(st, dk, fd, devname);
+ return 0;
+ }
+
/* This is device numbered dk->number. We need to create
* a phys_disk entry and a more detailed disk_data entry.
*/
fstat(fd, &stb);
- dd = malloc(sizeof(*dd) + sizeof(dd->vlist[0]) * ddf->max_part);
+ if (posix_memalign((void**)&dd, 512,
+ sizeof(*dd) + sizeof(dd->vlist[0]) * ddf->max_part) != 0) {
+ fprintf(stderr, Name
+ ": %s could allocate buffer for new disk, aborting\n",
+ __func__);
+ return 1;
+ }
dd->major = major(stb.st_rdev);
dd->minor = minor(stb.st_rdev);
dd->devname = devname;
- dd->next = ddf->dlist;
dd->fd = fd;
dd->spare = NULL;
tm = localtime(&now);
sprintf(dd->disk.guid, "%8s%04d%02d%02d",
T10, tm->tm_year+1900, tm->tm_mon+1, tm->tm_mday);
- *(__u32*)(dd->disk.guid + 16) = random();
- *(__u32*)(dd->disk.guid + 20) = random();
+ *(__u32*)(dd->disk.guid + 16) = random32();
+ *(__u32*)(dd->disk.guid + 20) = random32();
+
+ do {
+ /* Cannot be bothered finding a CRC of some irrelevant details*/
+ dd->disk.refnum = random32();
+ for (i = __be16_to_cpu(ddf->active->max_pd_entries) - 1;
+ i >= 0; i--)
+ if (ddf->phys->entries[i].refnum == dd->disk.refnum)
+ break;
+ } while (i >= 0);
- dd->disk.refnum = random(); /* and hope for the best FIXME check this is unique!!*/
dd->disk.forced_ref = 1;
dd->disk.forced_guid = 1;
memset(dd->disk.vendor, ' ', 32);
pde = &ddf->phys->entries[n];
dd->pdnum = n;
- n++;
- ddf->phys->used_pdes = __cpu_to_be16(n);
+ if (st->update_tail) {
+ int len = (sizeof(struct phys_disk) +
+ sizeof(struct phys_disk_entry));
+ struct phys_disk *pd;
+
+ pd = malloc(len);
+ pd->magic = DDF_PHYS_RECORDS_MAGIC;
+ pd->used_pdes = __cpu_to_be16(n);
+ pde = &pd->entries[0];
+ dd->mdupdate = pd;
+ } else {
+ n++;
+ ddf->phys->used_pdes = __cpu_to_be16(n);
+ }
memcpy(pde->guid, dd->disk.guid, DDF_GUID_LEN);
pde->refnum = dd->disk.refnum;
sprintf(pde->path, "%17.17s","Information: nil") ;
memset(pde->pad, 0xff, 6);
- ddf->dlist = dd;
+ dd->size = size >> 9;
+ if (st->update_tail) {
+ dd->next = ddf->add_list;
+ ddf->add_list = dd;
+ } else {
+ dd->next = ddf->dlist;
+ ddf->dlist = dd;
+ ddf->updates_pending = 1;
+ }
+
+ return 0;
}
/*
* container.
*/
-#ifndef MDASSEMBLE
+static unsigned char null_conf[4096+512];
+
static int __write_init_super_ddf(struct supertype *st, int do_close)
{
struct dl *d;
int n_config;
int conf_size;
-
+ int attempts = 0;
+ int successes = 0;
unsigned long long size, sector;
+ /* try to write updated metadata,
+ * if we catch a failure move on to the next disk
+ */
for (d = ddf->dlist; d; d=d->next) {
int fd = d->fd;
if (fd < 0)
continue;
+ attempts++;
/* We need to fill in the primary, (secondary) and workspace
* lba's in the headers, set their checksums,
* Also checksum phys, virt....
sector = size - 16*1024*2;
lseek64(fd, sector<<9, 0);
- write(fd, &ddf->primary, 512);
+ if (write(fd, &ddf->primary, 512) < 0)
+ continue;
ddf->controller.crc = calc_crc(&ddf->controller, 512);
- write(fd, &ddf->controller, 512);
+ if (write(fd, &ddf->controller, 512) < 0)
+ continue;
ddf->phys->crc = calc_crc(ddf->phys, ddf->pdsize);
- write(fd, ddf->phys, ddf->pdsize);
+ if (write(fd, ddf->phys, ddf->pdsize) < 0)
+ continue;
ddf->virt->crc = calc_crc(ddf->virt, ddf->vdsize);
- write(fd, ddf->virt, ddf->vdsize);
+ if (write(fd, ddf->virt, ddf->vdsize) < 0)
+ continue;
/* Now write lots of config records. */
n_config = ddf->max_part;
if (c) {
c->conf.crc = calc_crc(&c->conf, conf_size);
- write(fd, &c->conf, conf_size);
+ if (write(fd, &c->conf, conf_size) < 0)
+ break;
} else {
- __u32 sig = 0xffffffff;
- write(fd, &sig, 4);
- lseek64(fd, conf_size-4, SEEK_CUR);
+ char *null_aligned = (char*)((((unsigned long)null_conf)+511)&~511UL);
+ if (null_conf[0] != 0xff)
+ memset(null_conf, 0xff, sizeof(null_conf));
+ int togo = conf_size;
+ while (togo > sizeof(null_conf)-512) {
+ if (write(fd, null_aligned, sizeof(null_conf)-512) < 0)
+ break;
+ togo -= sizeof(null_conf)-512;
+ }
+ if (write(fd, null_aligned, togo) < 0)
+ break;
}
}
+ if (i <= n_config)
+ continue;
d->disk.crc = calc_crc(&d->disk, 512);
- write(fd, &d->disk, 512);
+ if (write(fd, &d->disk, 512) < 0)
+ continue;
/* Maybe do the same for secondary */
lseek64(fd, (size-1)*512, SEEK_SET);
- write(fd, &ddf->anchor, 512);
- if (do_close) {
- close(fd);
+ if (write(fd, &ddf->anchor, 512) < 0)
+ continue;
+ successes++;
+ }
+
+ if (do_close)
+ for (d = ddf->dlist; d; d=d->next) {
+ close(d->fd);
d->fd = -1;
}
- }
- return 1;
+
+ return attempts != successes;
}
static int write_init_super_ddf(struct supertype *st)
{
- return __write_init_super_ddf(st, 1);
+
+ if (st->update_tail) {
+ /* queue the virtual_disk and vd_config as metadata updates */
+ struct virtual_disk *vd;
+ struct vd_config *vc;
+ struct ddf_super *ddf = st->sb;
+ int len;
+
+ if (!ddf->currentconf) {
+ int len = (sizeof(struct phys_disk) +
+ sizeof(struct phys_disk_entry));
+
+ /* adding a disk to the container. */
+ if (!ddf->add_list)
+ return 0;
+
+ append_metadata_update(st, ddf->add_list->mdupdate, len);
+ ddf->add_list->mdupdate = NULL;
+ return 0;
+ }
+
+ /* Newly created VD */
+
+ /* First the virtual disk. We have a slightly fake header */
+ len = sizeof(struct virtual_disk) + sizeof(struct virtual_entry);
+ vd = malloc(len);
+ *vd = *ddf->virt;
+ vd->entries[0] = ddf->virt->entries[ddf->currentconf->vcnum];
+ vd->populated_vdes = __cpu_to_be16(ddf->currentconf->vcnum);
+ append_metadata_update(st, vd, len);
+
+ /* Then the vd_config */
+ len = ddf->conf_rec_len * 512;
+ vc = malloc(len);
+ memcpy(vc, &ddf->currentconf->conf, len);
+ append_metadata_update(st, vc, len);
+
+ /* FIXME I need to close the fds! */
+ return 0;
+ } else
+ return __write_init_super_ddf(st, 1);
}
#endif
}
#ifndef MDASSEMBLE
-int validate_geometry_ddf(struct supertype *st,
- int level, int layout, int raiddisks,
- int chunk, unsigned long long size,
- char *dev, unsigned long long *freesize)
+
+static int reserve_space(struct supertype *st, int raiddisks,
+ unsigned long long size, int chunk,
+ unsigned long long *freesize)
+{
+ /* Find 'raiddisks' spare extents at least 'size' big (but
+ * only caring about multiples of 'chunk') and remember
+ * them.
+ * If the cannot be found, fail.
+ */
+ struct dl *dl;
+ struct ddf_super *ddf = st->sb;
+ int cnt = 0;
+
+ for (dl = ddf->dlist; dl ; dl=dl->next) {
+ dl->raiddisk = -1;
+ dl->esize = 0;
+ }
+ /* Now find largest extent on each device */
+ for (dl = ddf->dlist ; dl ; dl=dl->next) {
+ struct extent *e = get_extents(ddf, dl);
+ unsigned long long pos = 0;
+ int i = 0;
+ int found = 0;
+ unsigned long long minsize = size;
+
+ if (size == 0)
+ minsize = chunk;
+
+ if (!e)
+ continue;
+ do {
+ unsigned long long esize;
+ esize = e[i].start - pos;
+ if (esize >= minsize) {
+ found = 1;
+ minsize = esize;
+ }
+ pos = e[i].start + e[i].size;
+ i++;
+ } while (e[i-1].size);
+ if (found) {
+ cnt++;
+ dl->esize = minsize;
+ }
+ free(e);
+ }
+ if (cnt < raiddisks) {
+ fprintf(stderr, Name ": not enough devices with space to create array.\n");
+ return 0; /* No enough free spaces large enough */
+ }
+ if (size == 0) {
+ /* choose the largest size of which there are at least 'raiddisk' */
+ for (dl = ddf->dlist ; dl ; dl=dl->next) {
+ struct dl *dl2;
+ if (dl->esize <= size)
+ continue;
+ /* This is bigger than 'size', see if there are enough */
+ cnt = 0;
+ for (dl2 = dl; dl2 ; dl2=dl2->next)
+ if (dl2->esize >= dl->esize)
+ cnt++;
+ if (cnt >= raiddisks)
+ size = dl->esize;
+ }
+ if (chunk) {
+ size = size / chunk;
+ size *= chunk;
+ }
+ *freesize = size;
+ if (size < 32) {
+ fprintf(stderr, Name ": not enough spare devices to create array.\n");
+ return 0;
+ }
+ }
+ /* We have a 'size' of which there are enough spaces.
+ * We simply do a first-fit */
+ cnt = 0;
+ for (dl = ddf->dlist ; dl && cnt < raiddisks ; dl=dl->next) {
+ if (dl->esize < size)
+ continue;
+
+ dl->raiddisk = cnt;
+ cnt++;
+ }
+ return 1;
+}
+
+
+
+static int
+validate_geometry_ddf_container(struct supertype *st,
+ int level, int layout, int raiddisks,
+ int chunk, unsigned long long size,
+ char *dev, unsigned long long *freesize,
+ int verbose);
+
+static int validate_geometry_ddf_bvd(struct supertype *st,
+ int level, int layout, int raiddisks,
+ int chunk, unsigned long long size,
+ char *dev, unsigned long long *freesize,
+ int verbose);
+
+static int validate_geometry_ddf(struct supertype *st,
+ int level, int layout, int raiddisks,
+ int chunk, unsigned long long size,
+ char *dev, unsigned long long *freesize,
+ int verbose)
{
int fd;
struct mdinfo *sra;
*/
if (level == LEVEL_CONTAINER) {
- st->ss = &super_ddf_container;
- if (dev) {
- int rv =st->ss->validate_geometry(st, level, layout,
- raiddisks, chunk,
- size,
- NULL, freesize);
- if (rv)
- return rv;
- }
- return st->ss->validate_geometry(st, level, layout, raiddisks,
- chunk, size, dev, freesize);
+ /* Must be a fresh device to add to a container */
+ return validate_geometry_ddf_container(st, level, layout,
+ raiddisks, chunk,
+ size, dev, freesize,
+ verbose);
}
- if (st->sb) {
- /* creating in a given container */
- st->ss = &super_ddf_bvd;
- if (dev) {
- int rv =st->ss->validate_geometry(st, level, layout,
- raiddisks, chunk,
- size,
- NULL, freesize);
- if (rv)
- return rv;
+ if (!dev) {
+ /* Initial sanity check. Exclude illegal levels. */
+ int i;
+ for (i=0; ddf_level_num[i].num1 != MAXINT; i++)
+ if (ddf_level_num[i].num2 == level)
+ break;
+ if (ddf_level_num[i].num1 == MAXINT)
+ return 0;
+ /* Should check layout? etc */
+
+ if (st->sb && freesize) {
+ /* --create was given a container to create in.
+ * So we need to check that there are enough
+ * free spaces and return the amount of space.
+ * We may as well remember which drives were
+ * chosen so that add_to_super/getinfo_super
+ * can return them.
+ */
+ return reserve_space(st, raiddisks, size, chunk, freesize);
}
- return st->ss->validate_geometry(st, level, layout, raiddisks,
- chunk, size, dev, freesize);
- }
- /* FIXME should exclude MULTIPATH, or more appropriately, allow
- * only known levels.
- */
- if (!dev)
return 1;
+ }
- /* This device needs to be either a device in a 'ddf' container,
- * or it needs to be a 'ddf-bvd' array.
+ if (st->sb) {
+ /* A container has already been opened, so we are
+ * creating in there. Maybe a BVD, maybe an SVD.
+ * Should make a distinction one day.
+ */
+ return validate_geometry_ddf_bvd(st, level, layout, raiddisks,
+ chunk, size, dev, freesize,
+ verbose);
+ }
+ /* This is the first device for the array.
+ * If it is a container, we read it in and do automagic allocations,
+ * no other devices should be given.
+ * Otherwise it must be a member device of a container, and we
+ * do manual allocation.
+ * Later we should check for a BVD and make an SVD.
*/
-
fd = open(dev, O_RDONLY|O_EXCL, 0);
if (fd >= 0) {
sra = sysfs_read(fd, 0, GET_VERSION);
close(fd);
if (sra && sra->array.major_version == -1 &&
- strcmp(sra->text_version, "ddf-bvd") == 0) {
- st->ss = &super_ddf_svd;
- return st->ss->validate_geometry(st, level, layout,
- raiddisks, chunk, size,
- dev, freesize);
+ strcmp(sra->text_version, "ddf") == 0) {
+
+ /* load super */
+ /* find space for 'n' devices. */
+ /* remember the devices */
+ /* Somehow return the fact that we have enough */
}
- fprintf(stderr,
- Name ": Cannot create this array on device %s\n",
- dev);
+ if (verbose)
+ fprintf(stderr,
+ Name ": ddf: Cannot create this array "
+ "on device %s\n",
+ dev);
return 0;
}
if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) {
- fprintf(stderr, Name ": Cannot open %s: %s\n",
- dev, strerror(errno));
+ if (verbose)
+ fprintf(stderr, Name ": ddf: Cannot open %s: %s\n",
+ dev, strerror(errno));
return 0;
}
/* Well, it is in use by someone, maybe a 'ddf' container. */
cfd = open_container(fd);
if (cfd < 0) {
close(fd);
- fprintf(stderr, Name ": Cannot use %s: It is busy\n",
- dev);
+ if (verbose)
+ fprintf(stderr, Name ": ddf: Cannot use %s: %s\n",
+ dev, strerror(EBUSY));
return 0;
}
sra = sysfs_read(cfd, 0, GET_VERSION);
* and try to create a bvd
*/
struct ddf_super *ddf;
- st->ss = &super_ddf_bvd;
if (load_super_ddf_all(st, cfd, (void **)&ddf, NULL, 1) == 0) {
st->sb = ddf;
st->container_dev = fd2devnum(cfd);
close(cfd);
- return st->ss->validate_geometry(st, level, layout,
+ return validate_geometry_ddf_bvd(st, level, layout,
raiddisks, chunk, size,
- dev, freesize);
+ dev, freesize,
+ verbose);
}
close(cfd);
} else /* device may belong to a different container */
return 1;
}
-int validate_geometry_ddf_container(struct supertype *st,
- int level, int layout, int raiddisks,
- int chunk, unsigned long long size,
- char *dev, unsigned long long *freesize)
+static int
+validate_geometry_ddf_container(struct supertype *st,
+ int level, int layout, int raiddisks,
+ int chunk, unsigned long long size,
+ char *dev, unsigned long long *freesize,
+ int verbose)
{
int fd;
unsigned long long ldsize;
fd = open(dev, O_RDONLY|O_EXCL, 0);
if (fd < 0) {
- fprintf(stderr, Name ": Cannot open %s: %s\n",
- dev, strerror(errno));
+ if (verbose)
+ fprintf(stderr, Name ": ddf: Cannot open %s: %s\n",
+ dev, strerror(errno));
return 0;
}
if (!get_dev_size(fd, dev, &ldsize)) {
close(fd);
*freesize = avail_size_ddf(st, ldsize >> 9);
+ if (*freesize == 0)
+ return 0;
return 1;
}
-struct extent {
- unsigned long long start, size;
-};
-int cmp_extent(const void *av, const void *bv)
-{
- const struct extent *a = av;
- const struct extent *b = bv;
- if (a->start < b->start)
- return -1;
- if (a->start > b->start)
- return 1;
- return 0;
-}
-
-struct extent *get_extents(struct ddf_super *ddf, struct dl *dl)
-{
- /* find a list of used extents on the give physical device
- * (dnum) of the given ddf.
- * Return a malloced array of 'struct extent'
-
-FIXME ignore DDF_Legacy devices?
-
- */
- struct extent *rv;
- int n = 0;
- int dnum;
- int i, j;
-
- /* FIXME this is dl->pdnum */
- for (dnum = 0; dnum < ddf->phys->used_pdes; dnum++)
- if (memcmp(dl->disk.guid,
- ddf->phys->entries[dnum].guid,
- DDF_GUID_LEN) == 0)
- break;
-
- if (dnum == ddf->phys->used_pdes)
- return NULL;
-
- rv = malloc(sizeof(struct extent) * (ddf->max_part + 2));
- if (!rv)
- return NULL;
-
- for (i = 0; i < ddf->max_part; i++) {
- struct vcl *v = dl->vlist[i];
- if (v == NULL)
- continue;
- for (j=0; j < v->conf.prim_elmnt_count; j++)
- if (v->conf.phys_refnum[j] == dl->disk.refnum) {
- /* This device plays role 'j' in 'v'. */
- rv[n].start = __be64_to_cpu(v->lba_offset[j]);
- rv[n].size = __be64_to_cpu(v->conf.blocks);
- n++;
- break;
- }
- }
- qsort(rv, n, sizeof(*rv), cmp_extent);
-
- rv[n].start = __be64_to_cpu(ddf->phys->entries[dnum].config_size);
- rv[n].size = 0;
- return rv;
-}
-
-int validate_geometry_ddf_bvd(struct supertype *st,
- int level, int layout, int raiddisks,
- int chunk, unsigned long long size,
- char *dev, unsigned long long *freesize)
+static int validate_geometry_ddf_bvd(struct supertype *st,
+ int level, int layout, int raiddisks,
+ int chunk, unsigned long long size,
+ char *dev, unsigned long long *freesize,
+ int verbose)
{
struct stat stb;
struct ddf_super *ddf = st->sb;
free(e);
}
if (dcnt < raiddisks) {
- fprintf(stderr, Name ": Not enough devices with space "
- "for this array (%d < %d)\n",
- dcnt, raiddisks);
+ if (verbose)
+ fprintf(stderr,
+ Name ": ddf: Not enough devices with "
+ "space for this array (%d < %d)\n",
+ dcnt, raiddisks);
return 0;
}
return 1;
break;
}
if (!dl) {
- fprintf(stderr, Name ": %s is not in the same DDF set\n",
- dev);
+ if (verbose)
+ fprintf(stderr, Name ": ddf: %s is not in the "
+ "same DDF set\n",
+ dev);
return 0;
}
e = get_extents(ddf, dl);
return 1;
}
-int validate_geometry_ddf_svd(struct supertype *st,
- int level, int layout, int raiddisks,
- int chunk, unsigned long long size,
- char *dev, unsigned long long *freesize)
-{
- /* dd/svd only supports striped, mirrored, concat, spanned... */
- if (level != LEVEL_LINEAR &&
- level != 0 &&
- level != 1)
- return 0;
- return 1;
-}
-
static int load_super_ddf_all(struct supertype *st, int fd,
void **sbp, char *devname, int keep_fd)
int seq;
char nm[20];
int dfd;
+ int devnum = fd2devnum(fd);
+ enum sysfs_read_flags flags;
- sra = sysfs_read(fd, 0, GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE);
+ flags = GET_LEVEL|GET_VERSION|GET_DEVS|GET_STATE;
+ if (mdmon_running(devnum))
+ flags |= SKIP_GONE_DEVS;
+
+ sra = sysfs_read(fd, 0, flags);
if (!sra)
return 1;
if (sra->array.major_version != -1 ||
strcmp(sra->text_version, "ddf") != 0)
return 1;
- super = malloc(sizeof(*super));
- if (!super)
+ if (posix_memalign((void**)&super, 512, sizeof(*super)) != 0)
return 1;
memset(super, 0, sizeof(*super));
close(dfd);
/* Now we need the device-local bits */
for (sd = sra->devs ; sd ; sd = sd->next) {
+ int rv;
+
sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor);
dfd = dev_open(nm, keep_fd? O_RDWR : O_RDONLY);
if (dfd < 0)
return 2;
- seq = load_ddf_local(dfd, super, NULL, keep_fd);
+ rv = load_ddf_headers(dfd, super, NULL);
+ if (rv == 0)
+ rv = load_ddf_local(dfd, super, NULL, keep_fd);
if (!keep_fd) close(dfd);
+ if (rv)
+ return 1;
+ }
+ if (st->subarray[0]) {
+ struct vcl *v;
+
+ for (v = super->conflist; v; v = v->next)
+ if (v->vcnum == atoi(st->subarray))
+ super->currentconf = v;
+ if (!super->currentconf)
+ return 1;
}
*sbp = super;
if (st->ss == NULL) {
- st->ss = &super_ddf_container;
+ st->ss = &super_ddf;
st->minor_version = 0;
st->max_devs = 512;
st->container_dev = fd2devnum(fd);
}
+ st->loaded_container = 1;
return 0;
}
-#endif
-
-
+#endif /* MDASSEMBLE */
static struct mdinfo *container_content_ddf(struct supertype *st)
{
for (vc = ddf->conflist ; vc ; vc=vc->next)
{
int i;
+ int j;
struct mdinfo *this;
this = malloc(sizeof(*this));
memset(this, 0, sizeof(*this));
this->next = rest;
rest = this;
- this->array.major_version = 1000;
- this->array.minor_version = 0;
- this->array.patch_version = 0;
this->array.level = map_num1(ddf_level_num, vc->conf.prl);
this->array.raid_disks =
__be16_to_cpu(vc->conf.prim_elmnt_count);
this->array.layout = rlq_to_layout(vc->conf.rlq, vc->conf.prl,
this->array.raid_disks);
this->array.md_minor = -1;
+ this->array.major_version = -1;
+ this->array.minor_version = -2;
this->array.ctime = DECADE +
__be32_to_cpu(*(__u32*)(vc->conf.guid+16));
this->array.utime = DECADE +
__be32_to_cpu(vc->conf.timestamp);
this->array.chunk_size = 512 << vc->conf.chunk_shift;
- for (i=0; i < __be16_to_cpu(ddf->virt->populated_vdes); i++)
- if (memcmp(ddf->virt->entries[i].guid,
- vc->conf.guid, DDF_GUID_LEN) == 0)
- break;
+ i = vc->vcnum;
if ((ddf->virt->entries[i].state & DDF_state_inconsistent) ||
(ddf->virt->entries[i].init_state & DDF_initstate_mask) !=
DDF_init_full) {
this->array.state = 1;
this->resync_start = ~0ULL;
}
- memcpy(this->name, ddf->virt->entries[i].name, 32);
- this->name[33]=0;
+ memcpy(this->name, ddf->virt->entries[i].name, 16);
+ this->name[16]=0;
+ for(j=0; j<16; j++)
+ if (this->name[j] == ' ')
+ this->name[j] = 0;
memset(this->uuid, 0, sizeof(this->uuid));
this->component_size = __be64_to_cpu(vc->conf.blocks);
this->array.size = this->component_size / 2;
this->container_member = i;
+ ddf->currentconf = vc;
+ uuid_from_super_ddf(st, this->uuid);
+ ddf->currentconf = NULL;
+
sprintf(this->text_version, "/%s/%d",
devnum2devname(st->container_dev),
this->container_member);
-
for (i=0 ; i < ddf->mppe ; i++) {
struct mdinfo *dev;
struct dl *d;
if (d->disk.refnum == vc->conf.phys_refnum[i])
break;
if (d == NULL)
- break;
+ /* Haven't found that one yet, maybe there are others */
+ continue;
dev = malloc(sizeof(*dev));
memset(dev, 0, sizeof(*dev));
dev->disk.raid_disk = i;
dev->disk.state = (1<<MD_DISK_SYNC)|(1<<MD_DISK_ACTIVE);
- dev->events = __le32_to_cpu(ddf->primary.seq);
- dev->data_offset = vc->lba_offset[i];
+ dev->events = __be32_to_cpu(ddf->primary.seq);
+ dev->data_offset = __be64_to_cpu(vc->lba_offset[i]);
dev->component_size = __be64_to_cpu(vc->conf.blocks);
if (d->devname)
strcpy(dev->name, d->devname);
return rest;
}
-static int init_zero_ddf(struct supertype *st,
- mdu_array_info_t *info,
- unsigned long long size, char *name,
- char *homehost, int *uuid)
-{
- st->sb = NULL;
- return 0;
-}
-
static int store_zero_ddf(struct supertype *st, int fd)
{
unsigned long long dsize;
- char buf[512];
- memset(buf, 0, 512);
-
+ void *buf;
+ int rc;
if (!get_dev_size(fd, NULL, &dsize))
return 1;
+ if (posix_memalign(&buf, 512, 512) != 0)
+ return 1;
+ memset(buf, 0, 512);
+
lseek64(fd, dsize-512, 0);
- write(fd, buf, 512);
+ rc = write(fd, buf, 512);
+ free(buf);
+ if (rc < 0)
+ return 1;
return 0;
}
return 0;
}
+#ifndef MDASSEMBLE
/*
* A new array 'a' has been started which claims to be instance 'inst'
* within container 'c'.
*/
static int ddf_open_new(struct supertype *c, struct active_array *a, char *inst)
{
- fprintf(stderr, "ddf: open_new %s\n", inst);
+ dprintf("ddf: open_new %s\n", inst);
a->info.container_member = atoi(inst);
return 0;
}
* For DDF, we need to clear the DDF_state_inconsistent bit in the
* !global! virtual_disk.virtual_entry structure.
*/
-static void ddf_set_array_state(struct active_array *a, int consistent)
+static int ddf_set_array_state(struct active_array *a, int consistent)
{
struct ddf_super *ddf = a->container->sb;
int inst = a->info.container_member;
+ int old = ddf->virt->entries[inst].state;
+ if (consistent == 2) {
+ /* Should check if a recovery should be started FIXME */
+ consistent = 1;
+ if (!is_resync_complete(a))
+ consistent = 0;
+ }
if (consistent)
ddf->virt->entries[inst].state &= ~DDF_state_inconsistent;
else
ddf->virt->entries[inst].state |= DDF_state_inconsistent;
+ if (old != ddf->virt->entries[inst].state)
+ ddf->updates_pending = 1;
+
+ old = ddf->virt->entries[inst].init_state;
ddf->virt->entries[inst].init_state &= ~DDF_initstate_mask;
- if (a->resync_start == ~0ULL)
+ if (is_resync_complete(a))
ddf->virt->entries[inst].init_state |= DDF_init_full;
else if (a->resync_start == 0)
ddf->virt->entries[inst].init_state |= DDF_init_not;
else
ddf->virt->entries[inst].init_state |= DDF_init_quick;
+ if (old != ddf->virt->entries[inst].init_state)
+ ddf->updates_pending = 1;
- printf("ddf mark %s %llu\n", consistent?"clean":"dirty",
- a->resync_start);
+ dprintf("ddf mark %d %s %llu\n", inst, consistent?"clean":"dirty",
+ a->resync_start);
+ return consistent;
}
/*
int i, st, working;
if (vc == NULL) {
- fprintf(stderr, "ddf: cannot find instance %d!!\n", inst);
+ dprintf("ddf: cannot find instance %d!!\n", inst);
return;
}
if (pd < 0) {
/* FIXME */
}
} else {
+ int old = ddf->phys->entries[pd].state;
if (state & DS_FAULTY)
ddf->phys->entries[pd].state |= __cpu_to_be16(DDF_Failed);
if (state & DS_INSYNC) {
ddf->phys->entries[pd].state |= __cpu_to_be16(DDF_Online);
ddf->phys->entries[pd].state &= __cpu_to_be16(~DDF_Rebuilding);
}
+ if (old != ddf->phys->entries[pd].state)
+ ddf->updates_pending = 1;
}
- fprintf(stderr, "ddf: set_disk %d to %x\n", n, state);
+ dprintf("ddf: set_disk %d to %x\n", n, state);
/* Now we need to check the state of the array and update
* virtual_disk.entries[n].state.
break;
}
- ddf->virt->entries[inst].state =
- (ddf->virt->entries[inst].state & ~DDF_state_mask)
- | state;
+ if (ddf->virt->entries[inst].state !=
+ ((ddf->virt->entries[inst].state & ~DDF_state_mask)
+ | state)) {
+
+ ddf->virt->entries[inst].state =
+ (ddf->virt->entries[inst].state & ~DDF_state_mask)
+ | state;
+ ddf->updates_pending = 1;
+ }
}
* but ddf is sufficiently weird that it probably always
* changes global data ....
*/
+ struct ddf_super *ddf = st->sb;
+ if (!ddf->updates_pending)
+ return;
+ ddf->updates_pending = 0;
__write_init_super_ddf(st, 0);
- fprintf(stderr, "ddf: sync_metadata\n");
+ dprintf("ddf: sync_metadata\n");
}
static void ddf_process_update(struct supertype *st,
int mppe;
int ent;
- printf("Process update %x\n", *magic);
+ dprintf("Process update %x\n", *magic);
switch (*magic) {
case DDF_PHYS_RECORDS_MAGIC:
ddf->phys->entries[ent] = pd->entries[0];
ddf->phys->used_pdes = __cpu_to_be16(1 +
__be16_to_cpu(ddf->phys->used_pdes));
+ ddf->updates_pending = 1;
+ if (ddf->add_list) {
+ struct active_array *a;
+ struct dl *al = ddf->add_list;
+ ddf->add_list = al->next;
+
+ al->next = ddf->dlist;
+ ddf->dlist = al;
+
+ /* As a device has been added, we should check
+ * for any degraded devices that might make
+ * use of this spare */
+ for (a = st->arrays ; a; a=a->next)
+ a->check_degraded = 1;
+ }
break;
case DDF_VIRT_RECORDS_MAGIC:
ddf->virt->entries[ent] = vd->entries[0];
ddf->virt->populated_vdes = __cpu_to_be16(1 +
__be16_to_cpu(ddf->virt->populated_vdes));
+ ddf->updates_pending = 1;
break;
case DDF_VD_CONF_MAGIC:
- printf("len %d %d\n", update->len, ddf->conf_rec_len);
+ dprintf("len %d %d\n", update->len, ddf->conf_rec_len);
mppe = __be16_to_cpu(ddf->anchor.max_primary_element_entries);
- if (update->len != ddf->conf_rec_len)
+ if (update->len != ddf->conf_rec_len * 512)
return;
vc = (struct vd_config*)update->buf;
for (vcl = ddf->conflist; vcl ; vcl = vcl->next)
if (memcmp(vcl->conf.guid, vc->guid, DDF_GUID_LEN) == 0)
break;
- printf("vcl = %p\n", vcl);
+ dprintf("vcl = %p\n", vcl);
if (vcl) {
/* An update, just copy the phys_refnum and lba_offset
* fields
mppe * (sizeof(__u32) + sizeof(__u64)));
} else {
/* A new VD_CONF */
+ if (!update->space)
+ return;
vcl = update->space;
update->space = NULL;
vcl->next = ddf->conflist;
- vcl->conf = *vc;
+ memcpy(&vcl->conf, vc, update->len);
vcl->lba_offset = (__u64*)
&vcl->conf.phys_refnum[mppe];
ddf->conflist = vcl;
for (dn=0; dn < ddf->mppe ; dn++)
if (vcl->conf.phys_refnum[dn] ==
dl->disk.refnum) {
- printf("dev %d has %p at %d\n",
- dl->pdnum, vcl, vn);
+ dprintf("dev %d has %p at %d\n",
+ dl->pdnum, vcl, vn);
dl->vlist[vn++] = vcl;
break;
}
DDF_Active_in_VD);
}
}
+ ddf->updates_pending = 1;
break;
case DDF_SPARE_ASSIGN_MAGIC:
default: break;
}
}
+static void ddf_prepare_update(struct supertype *st,
+ struct metadata_update *update)
+{
+ /* This update arrived at managemon.
+ * We are about to pass it to monitor.
+ * If a malloc is needed, do it here.
+ */
+ struct ddf_super *ddf = st->sb;
+ __u32 *magic = (__u32*)update->buf;
+ if (*magic == DDF_VD_CONF_MAGIC)
+ if (posix_memalign(&update->space, 512,
+ offsetof(struct vcl, conf)
+ + ddf->conf_rec_len * 512) != 0)
+ update->space = NULL;
+}
+
/*
* Check if the array 'a' is degraded but not failed.
* If it is, find as many spares as are available and needed and
struct vd_config *vc;
__u64 *lba;
-/* FIXME, If there is a DS_FAULTY, we want to wait for it to be
- * removed. Then only look at DS_REMOVE devices.
- * What about !DS_INSYNC - how can that happen?
- */
for (d = a->info.devs ; d ; d = d->next) {
if ((d->curr_state & DS_FAULTY) &&
d->state_fd >= 0)
working ++;
}
- printf("ddf_activate: working=%d (%d) level=%d\n", working, a->info.array.raid_disks,
- a->info.array.level);
+ dprintf("ddf_activate: working=%d (%d) level=%d\n", working, a->info.array.raid_disks,
+ a->info.array.level);
if (working == a->info.array.raid_disks)
return NULL; /* array not degraded */
switch (a->info.array.level) {
for (d = a->info.devs ; d ; d = d->next)
if (d->disk.raid_disk == i)
break;
- printf("found %d: %p %x\n", i, d, d?d->curr_state:0);
+ dprintf("found %d: %p %x\n", i, d, d?d->curr_state:0);
if (d && (d->state_fd >= 0))
continue;
for (d2 = a->info.devs ; d2 ; d2 = d2->next)
if (d2->disk.major == dl->major &&
d2->disk.minor == dl->minor) {
- printf("%x:%x already in array\n", dl->major, dl->minor);
+ dprintf("%x:%x already in array\n", dl->major, dl->minor);
break;
}
if (d2)
}
if ( ! (is_dedicated ||
(is_global && global_ok))) {
- printf("%x:%x not suitable: %d %d\n", dl->major, dl->minor,
+ dprintf("%x:%x not suitable: %d %d\n", dl->major, dl->minor,
is_dedicated, is_global);
continue;
}
* We need a->info.component_size sectors */
ex = get_extents(ddf, dl);
if (!ex) {
- printf("cannot get extents\n");
+ dprintf("cannot get extents\n");
continue;
}
j = 0; pos = 0;
free(ex);
if (esize < a->info.component_size) {
- printf("%x:%x has no room: %llu %llu\n", dl->major, dl->minor,
- esize, a->info.component_size);
+ dprintf("%x:%x has no room: %llu %llu\n", dl->major, dl->minor,
+ esize, a->info.component_size);
/* No room */
continue;
}
/* Cool, we have a device with some space at pos */
di = malloc(sizeof(*di));
+ if (!di)
+ continue;
memset(di, 0, sizeof(*di));
di->disk.number = i;
di->disk.raid_disk = i;
di->container_member = dl->pdnum;
di->next = rv;
rv = di;
- printf("%x:%x to be %d at %llu\n", dl->major, dl->minor,
- i, pos);
+ dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor,
+ i, pos);
break;
}
* phys_refnum and lba_offset values
*/
mu = malloc(sizeof(*mu));
+ if (mu && posix_memalign(&mu->space, 512, sizeof(struct vcl)) != 0) {
+ free(mu);
+ mu = NULL;
+ }
+ if (!mu) {
+ while (rv) {
+ struct mdinfo *n = rv->next;
+
+ free(rv);
+ rv = n;
+ }
+ return NULL;
+ }
+
mu->buf = malloc(ddf->conf_rec_len * 512);
- mu->space = malloc(sizeof(struct vcl));
mu->len = ddf->conf_rec_len;
mu->next = *updates;
vc = find_vdcr(ddf, a->info.container_member);
*updates = mu;
return rv;
}
+#endif /* MDASSEMBLE */
+
+static int ddf_level_to_layout(int level)
+{
+ switch(level) {
+ case 0:
+ case 1:
+ return 0;
+ case 5:
+ return ALGORITHM_LEFT_SYMMETRIC;
+ case 6:
+ return ALGORITHM_ROTATING_N_CONTINUE;
+ case 10:
+ return 0x102;
+ default:
+ return UnSet;
+ }
+}
struct superswitch super_ddf = {
#ifndef MDASSEMBLE
.examine_super = examine_super_ddf,
.brief_examine_super = brief_examine_super_ddf,
+ .export_examine_super = export_examine_super_ddf,
.detail_super = detail_super_ddf,
.brief_detail_super = brief_detail_super_ddf,
.validate_geometry = validate_geometry_ddf,
+ .write_init_super = write_init_super_ddf,
+ .add_to_super = add_to_super_ddf,
#endif
.match_home = match_home_ddf,
.uuid_from_super= uuid_from_super_ddf,
.compare_super = compare_super_ddf,
.load_super = load_super_ddf,
- .init_super = init_zero_ddf,
+ .init_super = init_super_ddf,
.store_super = store_zero_ddf,
.free_super = free_super_ddf,
.match_metadata_desc = match_metadata_desc_ddf,
- .getinfo_super_n = getinfo_super_n_container,
-
+ .container_content = container_content_ddf,
+ .default_layout = ddf_level_to_layout,
- .major = 1000,
- .swapuuid = 0,
.external = 1,
+#ifndef MDASSEMBLE
/* for mdmon */
.open_new = ddf_open_new,
.set_array_state= ddf_set_array_state,
.set_disk = ddf_set_disk,
.sync_metadata = ddf_sync_metadata,
.process_update = ddf_process_update,
+ .prepare_update = ddf_prepare_update,
.activate_spare = ddf_activate_spare,
-
-};
-
-/* Super_ddf_container is set by validate_geometry_ddf when given a
- * device that is not part of any array
- */
-struct superswitch super_ddf_container = {
-#ifndef MDASSEMBLE
- .validate_geometry = validate_geometry_ddf_container,
- .write_init_super = write_init_super_ddf,
-#endif
-
- .load_super = load_super_ddf,
- .init_super = init_super_ddf,
- .add_to_super = add_to_super_ddf,
- .getinfo_super = getinfo_super_ddf,
-
- .free_super = free_super_ddf,
-
- .container_content = container_content_ddf,
- .getinfo_super_n = getinfo_super_n_container,
-
- .major = 1000,
- .swapuuid = 0,
- .external = 1,
-};
-
-struct superswitch super_ddf_bvd = {
-#ifndef MDASSEMBLE
-// .detail_super = detail_super_ddf_bvd,
-// .brief_detail_super = brief_detail_super_ddf_bvd,
- .validate_geometry = validate_geometry_ddf_bvd,
- .write_init_super = write_init_super_ddf,
#endif
- .update_super = update_super_ddf,
- .init_super = init_super_ddf_bvd,
- .add_to_super = add_to_super_ddf_bvd,
- .getinfo_super = getinfo_super_ddf_bvd,
- .getinfo_super_n = getinfo_super_n_bvd,
-
- .load_super = load_super_ddf,
- .free_super = free_super_ddf,
- .match_metadata_desc = match_metadata_desc_ddf_bvd,
-
-
- .major = 1001,
- .swapuuid = 0,
- .external = 2,
-};
-
-struct superswitch super_ddf_svd = {
-#ifndef MDASSEMBLE
-// .detail_super = detail_super_ddf_svd,
-// .brief_detail_super = brief_detail_super_ddf_svd,
- .validate_geometry = validate_geometry_ddf_svd,
-#endif
- .update_super = update_super_ddf,
- .init_super = init_super_ddf,
-
- .load_super = load_super_ddf,
- .free_super = free_super_ddf,
- .match_metadata_desc = match_metadata_desc_ddf_svd,
-
- .major = 1002,
- .swapuuid = 0,
- .external = 2,
+ .name = "ddf",
};
projects / thirdparty / mdadm.git / blobdiff