#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;
struct virtual_disk *virt;
int pdsize, vdsize;
int max_part, mppe, conf_rec_len;
+ int currentdev;
struct vcl {
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;
struct disk_data disk;
int major, minor;
char *devname;
int fd;
+ unsigned long long size; /* sectors */
int pdnum; /* index in ->phys */
struct spare_assign *spare;
struct vcl *vlist[0]; /* max_part in size */
#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)
{
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),
char *conf;
int i;
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) +
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
if (__be32_to_cpu(vd->seqnum) <=
__be32_to_cpu(vcl->conf.seqnum))
continue;
- } else {
+ } else {
vcl = malloc(super->conf_rec_len*512 +
offsetof(struct vcl, conf));
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);
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;
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
{
/* 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(" (");
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 ddf_super *ddf = st->sb;
int i;
- printf("ARRAY /dev/ddf UUID=");
+ printf("ARRAY /dev/ddf metadata=ddf UUID=");
for (i = 0; i < DDF_GUID_LEN; i++) {
- printf("%02x", ddf->anchor.guid[i]);
if ((i&3) == 0 && i != 0)
printf(":");
+ printf("%02X", 255&ddf->anchor.guid[i]);
}
printf("\n");
}
*/
// struct ddf_super *ddf = st->sb;
}
-
-
#endif
static int match_home_ddf(struct supertype *st, char *homehost)
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;
}
* 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);
+ struct vcl *vcl = ddf->currentconf;
- if (!vd)
+ if (!vcl)
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_process_bytes(&vcl->conf.guid, DDF_GUID_LEN, &ctx);
+ if (vcl->conf.sec_elmnt_count > 1)
+ sha1_process_bytes(&vcl->conf.sec_elmnt_seq, 1, &ctx);
sha1_finish_ctx(&ctx, buf);
memcpy(uuid, buf, sizeof(uuid));
}
}
+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 = find refnum in the table and use index;
}
info->disk.state = (1 << MD_DISK_SYNC);
+
info->reshape_active = 0;
strcpy(info->text_version, "ddf");
// 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;
-
- 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;
/* 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;
+
+ 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);
+ }
info->disk.major = 0;
info->disk.minor = 0;
// info->name[] ?? ;
}
-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
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;
+ if (!info) {
+ st->sb = NULL;
+ return 0;
+ }
+ if (st->sb)
+ return init_super_ddf_bvd(st, info, size, name, homehost,
+ uuid);
+
ddf = malloc(sizeof(*ddf));
memset(ddf, 0, sizeof(*ddf));
ddf->dlist = NULL; /* no physical 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;
case ALGORITHM_LEFT_ASYMMETRIC:
return DDF_RAID5_N_RESTART;
case ALGORITHM_RIGHT_ASYMMETRIC:
- return DDF_RAID5_0_RESTART;
+ if (level == 5)
+ return DDF_RAID5_0_RESTART;
+ else
+ return DDF_RAID6_0_RESTART;
case ALGORITHM_LEFT_SYMMETRIC:
return DDF_RAID5_N_CONTINUE;
case ALGORITHM_RIGHT_SYMMETRIC:
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_LEFT_ASYMMETRIC;
+ case DDF_RAID6_0_RESTART:
+ return ALGORITHM_RIGHT_ASYMMETRIC;
+ case DDF_RAID5_N_CONTINUE:
+ return ALGORITHM_LEFT_SYMMETRIC;
+ default:
+ return -1;
+ }
}
return -1;
}
+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;
+}
+
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
/* Now create a new vd_config */
vcl = malloc(offsetof(struct vcl, conf) + ddf->conf_rec_len * 512);
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;
vcl->next = ddf->conflist;
ddf->conflist = vcl;
- ddf->newconf = vcl;
+ ddf->currentconf = vcl;
return 1;
}
__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 &&
if (!dl || ! (dk->state & (1<<MD_DISK_SYNC)))
return;
- vc = &ddf->newconf->conf;
- lba_offset = ddf->newconf->lba_offset;
+ vc = &ddf->currentconf->conf;
+ lba_offset = ddf->currentconf->lba_offset;
+
+ 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] = 0; /* FIXME */
+ 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;
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)
int n, i;
struct stat stb;
+ if (ddf->currentconf) {
+ add_to_super_ddf_bvd(st, dk, fd, devname);
+ return;
+ }
+
/* This is device numbered dk->number. We need to create
* a phys_disk entry and a more detailed disk_data entry.
*/
*(__u32*)(dd->disk.guid + 16) = random();
*(__u32*)(dd->disk.guid + 20) = random();
- dd->disk.refnum = random(); /* and hope for the best FIXME check this is unique!!*/
+ do {
+ /* Cannot be bothered finding a CRC of some irrelevant details*/
+ dd->disk.refnum = random();
+ 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.forced_ref = 1;
dd->disk.forced_guid = 1;
memset(dd->disk.vendor, ' ', 32);
sprintf(pde->path, "%17.17s","Information: nil") ;
memset(pde->pad, 0xff, 6);
+ dd->size = size >> 9;
ddf->dlist = dd;
}
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;
+
+ /* 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,
+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);
+
+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);
+
+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)
*/
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);
}
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;
- }
- return st->ss->validate_geometry(st, level, layout, raiddisks,
+ /* 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);
}
- /* FIXME should exclude MULTIPATH, or more appropriately, allow
- * only known levels.
- */
- if (!dev)
+ 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 */
return 1;
+ }
- /* This device needs to be either a device in a 'ddf' container,
- * or it needs to be a 'ddf-bvd' array.
+ /* 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,
* 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);
}
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 fd;
unsigned long long ldsize;
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)
{
struct stat stb;
struct ddf_super *ddf = st->sb;
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)
seq = load_ddf_local(dfd, super, NULL, keep_fd);
if (!keep_fd) close(dfd);
}
+ 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);
}
#endif
-
-
static struct mdinfo *container_content_ddf(struct supertype *st)
{
/* Given a container loaded by load_super_ddf_all,
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);
__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) {
devnum2devname(st->container_dev),
this->container_member);
-
for (i=0 ; i < ddf->mppe ; i++) {
struct mdinfo *dev;
struct dl *d;
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);
-
if (!get_dev_size(fd, NULL, &dsize))
return 1;
printf("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)
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;
}
}
+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)
+ update->space = malloc(offsetof(struct vcl, conf)
+ + ddf->conf_rec_len * 512);
+}
+
/*
* 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)
.detail_super = detail_super_ddf,
.brief_detail_super = brief_detail_super_ddf,
.validate_geometry = validate_geometry_ddf,
+ .write_init_super = write_init_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,
-
+ .add_to_super = add_to_super_ddf,
+ .container_content = container_content_ddf,
- .major = 1000,
- .swapuuid = 0,
.external = 1,
/* for mdmon */
.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,
-};
projects / thirdparty / mdadm.git / blobdiff