/*
* 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
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;
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) {
/* 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;
}
if (posix_memalign((void**)&super, 512, sizeof(*super))!= 0) {
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->sb = super;
printf("%02X", guid[i]&255);
}
- printf(" (");
+ printf("\n (");
while (l && guid[l-1] == ' ')
l--;
for (i=0 ; i<l ; i++) {
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);
}
}
int i;
struct dl *dl;
printf(" Physical Disks : %d\n", cnt);
- printf(" Number RefNo Size Device Type/State\n");
+ printf(" Number RefNo Size Device Type/State\n");
for (i=0 ; i<cnt ; i++) {
struct phys_disk_entry *pd = &sb->phys->entries[i];
//printf("\n");
printf(" %3d %08x ", i,
__be32_to_cpu(pd->refnum));
- printf("%lluK ", __be64_to_cpu(pd->config_size)>>1);
+ 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("%-10s", dv);
+ printf("%-15s", dv);
break;
}
}
}
if (!dl)
- printf("%10s","");
+ printf("%15s","");
printf(" %s%s%s%s%s",
(type&2) ? "active":"",
(type&4) ? "Global-Spare":"",
static void uuid_from_super_ddf(struct supertype *st, int uuid[4]);
-static void brief_examine_super_ddf(struct supertype *st)
+static void brief_examine_super_ddf(struct supertype *st, int verbose)
{
/* We just write a generic DDF ARRAY entry
*/
char nbuf[64];
getinfo_super_ddf(st, &info);
fname_from_uuid(st, &info, nbuf, ':');
- printf("ARRAY metadata=ddf UUID=%s\n", nbuf + 5);
for (i=0; i<__be16_to_cpu(ddf->virt->max_vdes); i++) {
struct virtual_entry *ve = &ddf->virt->entries[i];
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)
{
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);
__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]);
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,
}
break;
case 5:
- case 6:
switch(layout) {
case ALGORITHM_LEFT_ASYMMETRIC:
return DDF_RAID5_N_RESTART;
case ALGORITHM_RIGHT_ASYMMETRIC:
- if (level == 5)
- return DDF_RAID5_0_RESTART;
- else
- return DDF_RAID6_0_RESTART;
+ return DDF_RAID5_0_RESTART;
case ALGORITHM_LEFT_SYMMETRIC:
return DDF_RAID5_N_CONTINUE;
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;
}
case DDF_RAID6:
switch(rlq) {
case DDF_RAID5_N_RESTART:
- return ALGORITHM_LEFT_ASYMMETRIC;
+ return ALGORITHM_ROTATING_N_RESTART;
case DDF_RAID6_0_RESTART:
- return ALGORITHM_RIGHT_ASYMMETRIC;
+ return ALGORITHM_ROTATING_ZERO_RESTART;
case DDF_RAID5_N_CONTINUE:
- return ALGORITHM_LEFT_SYMMETRIC;
+ return ALGORITHM_ROTATING_N_CONTINUE;
default:
return -1;
}
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;
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 = random();
+ 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)
close(fd);
*freesize = avail_size_ddf(st, ldsize >> 9);
+ if (*freesize == 0)
+ return 0;
return 1;
}
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 ||
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));
}
#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,
.free_super = free_super_ddf,
.match_metadata_desc = match_metadata_desc_ddf,
.container_content = container_content_ddf,
+ .default_layout = ddf_level_to_layout,
.external = 1,
projects / thirdparty / mdadm.git / blobdiff