/*
* mdadm - manage Linux "md" devices aka RAID arrays.
*
- * Copyright (C) 2006-2009 Neil Brown <neilb@suse.de>
+ * Copyright (C) 2006-2014 Neil Brown <neilb@suse.de>
*
*
* This program is free software; you can redistribute it and/or modify
* Author: Neil Brown
* Email: <neil@brown.name>
*
- * Specifications for DDF takes from Common RAID DDF Specification Revision 1.2
+ * Specifications for DDF taken from Common RAID DDF Specification Revision 1.2
* (July 28 2006). Reused by permission of SNIA.
*/
#include "mdmon.h"
#include "sha1.h"
#include <values.h>
+#include <stddef.h>
/* a non-official T10 name for creation GUIDs */
static char T10[] = "Linux-MD";
const unsigned char *buf,
unsigned len);
+#define DDF_NOTFOUND (~0U)
+#define DDF_CONTAINER (DDF_NOTFOUND-1)
+
+/* Default for safe_mode_delay. Same value as for IMSM.
+ */
+static const int DDF_SAFE_MODE_DELAY = 4000;
+
/* The DDF metadata handling.
* DDF metadata lives at the end of the device.
* The last 512 byte block provides an 'anchor' which is used to locate
*
*/
+typedef struct __be16 {
+ __u16 _v16;
+} be16;
+#define be16_eq(x, y) ((x)._v16 == (y)._v16)
+#define be16_and(x, y) ((x)._v16 & (y)._v16)
+#define be16_or(x, y) ((x)._v16 | (y)._v16)
+#define be16_clear(x, y) ((x)._v16 &= ~(y)._v16)
+#define be16_set(x, y) ((x)._v16 |= (y)._v16)
+
+typedef struct __be32 {
+ __u32 _v32;
+} be32;
+#define be32_eq(x, y) ((x)._v32 == (y)._v32)
+
+typedef struct __be64 {
+ __u64 _v64;
+} be64;
+#define be64_eq(x, y) ((x)._v64 == (y)._v64)
+
+#define be16_to_cpu(be) __be16_to_cpu((be)._v16)
+static inline be16 cpu_to_be16(__u16 x)
+{
+ be16 be = { ._v16 = __cpu_to_be16(x) };
+ return be;
+}
+
+#define be32_to_cpu(be) __be32_to_cpu((be)._v32)
+static inline be32 cpu_to_be32(__u32 x)
+{
+ be32 be = { ._v32 = __cpu_to_be32(x) };
+ return be;
+}
+
+#define be64_to_cpu(be) __be64_to_cpu((be)._v64)
+static inline be64 cpu_to_be64(__u64 x)
+{
+ be64 be = { ._v64 = __cpu_to_be64(x) };
+ return be;
+}
+
/* Primary Raid Level (PRL) */
#define DDF_RAID0 0x00
#define DDF_RAID1 0x01
#define DDF_2SPANNED 0x03 /* This is also weird - be careful */
/* Magic numbers */
-#define DDF_HEADER_MAGIC __cpu_to_be32(0xDE11DE11)
-#define DDF_CONTROLLER_MAGIC __cpu_to_be32(0xAD111111)
-#define DDF_PHYS_RECORDS_MAGIC __cpu_to_be32(0x22222222)
-#define DDF_PHYS_DATA_MAGIC __cpu_to_be32(0x33333333)
-#define DDF_VIRT_RECORDS_MAGIC __cpu_to_be32(0xDDDDDDDD)
-#define DDF_VD_CONF_MAGIC __cpu_to_be32(0xEEEEEEEE)
-#define DDF_SPARE_ASSIGN_MAGIC __cpu_to_be32(0x55555555)
-#define DDF_VU_CONF_MAGIC __cpu_to_be32(0x88888888)
-#define DDF_VENDOR_LOG_MAGIC __cpu_to_be32(0x01dBEEF0)
-#define DDF_BBM_LOG_MAGIC __cpu_to_be32(0xABADB10C)
+#define DDF_HEADER_MAGIC cpu_to_be32(0xDE11DE11)
+#define DDF_CONTROLLER_MAGIC cpu_to_be32(0xAD111111)
+#define DDF_PHYS_RECORDS_MAGIC cpu_to_be32(0x22222222)
+#define DDF_PHYS_DATA_MAGIC cpu_to_be32(0x33333333)
+#define DDF_VIRT_RECORDS_MAGIC cpu_to_be32(0xDDDDDDDD)
+#define DDF_VD_CONF_MAGIC cpu_to_be32(0xEEEEEEEE)
+#define DDF_SPARE_ASSIGN_MAGIC cpu_to_be32(0x55555555)
+#define DDF_VU_CONF_MAGIC cpu_to_be32(0x88888888)
+#define DDF_VENDOR_LOG_MAGIC cpu_to_be32(0x01dBEEF0)
+#define DDF_BBM_LOG_MAGIC cpu_to_be32(0xABADB10C)
#define DDF_GUID_LEN 24
#define DDF_REVISION_0 "01.00.00"
#define DDF_REVISION_2 "01.02.00"
struct ddf_header {
- __u32 magic; /* DDF_HEADER_MAGIC */
- __u32 crc;
+ be32 magic; /* DDF_HEADER_MAGIC */
+ be32 crc;
char guid[DDF_GUID_LEN];
char revision[8]; /* 01.02.00 */
- __u32 seq; /* starts at '1' */
- __u32 timestamp;
+ be32 seq; /* starts at '1' */
+ be32 timestamp;
__u8 openflag;
__u8 foreignflag;
__u8 enforcegroups;
__u8 pad1[12]; /* 12 * 0xff */
/* 64 bytes so far */
__u8 header_ext[32]; /* reserved: fill with 0xff */
- __u64 primary_lba;
- __u64 secondary_lba;
+ be64 primary_lba;
+ be64 secondary_lba;
__u8 type;
__u8 pad2[3]; /* 0xff */
- __u32 workspace_len; /* sectors for vendor space -
+ be32 workspace_len; /* sectors for vendor space -
* at least 32768(sectors) */
- __u64 workspace_lba;
- __u16 max_pd_entries; /* one of 15, 63, 255, 1023, 4095 */
- __u16 max_vd_entries; /* 2^(4,6,8,10,12)-1 : i.e. as above */
- __u16 max_partitions; /* i.e. max num of configuration
+ be64 workspace_lba;
+ be16 max_pd_entries; /* one of 15, 63, 255, 1023, 4095 */
+ be16 max_vd_entries; /* 2^(4,6,8,10,12)-1 : i.e. as above */
+ be16 max_partitions; /* i.e. max num of configuration
record entries per disk */
- __u16 config_record_len; /* 1 +ROUNDUP(max_primary_element_entries
+ be16 config_record_len; /* 1 +ROUNDUP(max_primary_element_entries
*12/512) */
- __u16 max_primary_element_entries; /* 16, 64, 256, 1024, or 4096 */
+ be16 max_primary_element_entries; /* 16, 64, 256, 1024, or 4096 */
__u8 pad3[54]; /* 0xff */
/* 192 bytes so far */
- __u32 controller_section_offset;
- __u32 controller_section_length;
- __u32 phys_section_offset;
- __u32 phys_section_length;
- __u32 virt_section_offset;
- __u32 virt_section_length;
- __u32 config_section_offset;
- __u32 config_section_length;
- __u32 data_section_offset;
- __u32 data_section_length;
- __u32 bbm_section_offset;
- __u32 bbm_section_length;
- __u32 diag_space_offset;
- __u32 diag_space_length;
- __u32 vendor_offset;
- __u32 vendor_length;
+ be32 controller_section_offset;
+ be32 controller_section_length;
+ be32 phys_section_offset;
+ be32 phys_section_length;
+ be32 virt_section_offset;
+ be32 virt_section_length;
+ be32 config_section_offset;
+ be32 config_section_length;
+ be32 data_section_offset;
+ be32 data_section_length;
+ be32 bbm_section_offset;
+ be32 bbm_section_length;
+ be32 diag_space_offset;
+ be32 diag_space_length;
+ be32 vendor_offset;
+ be32 vendor_length;
/* 256 bytes so far */
__u8 pad4[256]; /* 0xff */
};
/* The content of the 'controller section' - global scope */
struct ddf_controller_data {
- __u32 magic; /* DDF_CONTROLLER_MAGIC */
- __u32 crc;
+ be32 magic; /* DDF_CONTROLLER_MAGIC */
+ be32 crc;
char guid[DDF_GUID_LEN];
struct controller_type {
- __u16 vendor_id;
- __u16 device_id;
- __u16 sub_vendor_id;
- __u16 sub_device_id;
+ be16 vendor_id;
+ be16 device_id;
+ be16 sub_vendor_id;
+ be16 sub_device_id;
} type;
char product_id[16];
__u8 pad[8]; /* 0xff */
/* The content of phys_section - global scope */
struct phys_disk {
- __u32 magic; /* DDF_PHYS_RECORDS_MAGIC */
- __u32 crc;
- __u16 used_pdes;
- __u16 max_pdes;
+ be32 magic; /* DDF_PHYS_RECORDS_MAGIC */
+ be32 crc;
+ be16 used_pdes; /* This is a counter, not a max - the list
+ * of used entries may not be dense */
+ be16 max_pdes;
__u8 pad[52];
struct phys_disk_entry {
char guid[DDF_GUID_LEN];
- __u32 refnum;
- __u16 type;
- __u16 state;
- __u64 config_size; /* DDF structures must be after here */
- char path[18]; /* another horrible structure really */
+ be32 refnum;
+ be16 type;
+ be16 state;
+ be64 config_size; /* DDF structures must be after here */
+ char path[18]; /* Another horrible structure really
+ * but is "used for information
+ * purposes only" */
__u8 pad[6];
} entries[0];
};
/* The content of the virt_section global scope */
struct virtual_disk {
- __u32 magic; /* DDF_VIRT_RECORDS_MAGIC */
- __u32 crc;
- __u16 populated_vdes;
- __u16 max_vdes;
+ be32 magic; /* DDF_VIRT_RECORDS_MAGIC */
+ be32 crc;
+ be16 populated_vdes;
+ be16 max_vdes;
__u8 pad[52];
struct virtual_entry {
char guid[DDF_GUID_LEN];
- __u16 unit;
+ be16 unit;
__u16 pad0; /* 0xffff */
- __u16 guid_crc;
- __u16 type;
+ be16 guid_crc;
+ be16 type;
__u8 state;
__u8 init_state;
__u8 pad1[14];
*/
struct vd_config {
- __u32 magic; /* DDF_VD_CONF_MAGIC */
- __u32 crc;
+ be32 magic; /* DDF_VD_CONF_MAGIC */
+ be32 crc;
char guid[DDF_GUID_LEN];
- __u32 timestamp;
- __u32 seqnum;
+ be32 timestamp;
+ be32 seqnum;
__u8 pad0[24];
- __u16 prim_elmnt_count;
+ be16 prim_elmnt_count;
__u8 chunk_shift; /* 0 == 512, 1==1024 etc */
__u8 prl;
__u8 rlq;
__u8 sec_elmnt_count;
__u8 sec_elmnt_seq;
__u8 srl;
- __u64 blocks; /* blocks per component could be different
+ be64 blocks; /* blocks per component could be different
* on different component devices...(only
* for concat I hope) */
- __u64 array_blocks; /* blocks in array */
+ be64 array_blocks; /* blocks in array */
__u8 pad1[8];
- __u32 spare_refs[8];
+ be32 spare_refs[8]; /* This is used to detect missing spares.
+ * As we don't have an interface for that
+ * the values are ignored.
+ */
__u8 cache_pol[8];
__u8 bg_rate;
__u8 pad2[3];
__u8 v2[16]; /* reserved- 0xff */
__u8 v3[16]; /* reserved- 0xff */
__u8 vendor[32];
- __u32 phys_refnum[0]; /* refnum of each disk in sequence */
+ be32 phys_refnum[0]; /* refnum of each disk in sequence */
/*__u64 lba_offset[0]; LBA offset in each phys. Note extents in a
bvd are always the same size */
};
+#define LBA_OFFSET(ddf, vd) ((be64 *) &(vd)->phys_refnum[(ddf)->mppe])
/* vd_config.cache_pol[7] is a bitmap */
#define DDF_cache_writeback 1 /* else writethrough */
#define DDF_cache_rallowed 64 /* enable read caching */
struct spare_assign {
- __u32 magic; /* DDF_SPARE_ASSIGN_MAGIC */
- __u32 crc;
- __u32 timestamp;
+ be32 magic; /* DDF_SPARE_ASSIGN_MAGIC */
+ be32 crc;
+ be32 timestamp;
__u8 reserved[7];
__u8 type;
- __u16 populated; /* SAEs used */
- __u16 max; /* max SAEs */
+ be16 populated; /* SAEs used */
+ be16 max; /* max SAEs */
__u8 pad[8];
struct spare_assign_entry {
char guid[DDF_GUID_LEN];
- __u16 secondary_element;
+ be16 secondary_element;
__u8 pad[6];
} spare_ents[0];
};
/* The data_section contents - local scope */
struct disk_data {
- __u32 magic; /* DDF_PHYS_DATA_MAGIC */
- __u32 crc;
+ be32 magic; /* DDF_PHYS_DATA_MAGIC */
+ be32 crc;
char guid[DDF_GUID_LEN];
- __u32 refnum; /* crc of some magic drive data ... */
+ be32 refnum; /* crc of some magic drive data ... */
__u8 forced_ref; /* set when above was not result of magic */
__u8 forced_guid; /* set if guid was forced rather than magic */
__u8 vendor[32];
/* bbm_section content */
struct bad_block_log {
- __u32 magic;
- __u32 crc;
- __u16 entry_count;
- __u32 spare_count;
+ be32 magic;
+ be32 crc;
+ be16 entry_count;
+ be32 spare_count;
__u8 pad[10];
- __u64 first_spare;
+ be64 first_spare;
struct mapped_block {
- __u64 defective_start;
- __u32 replacement_start;
- __u16 remap_count;
+ be64 defective_start;
+ be32 replacement_start;
+ be16 remap_count;
__u8 pad[2];
} entries[0];
};
* and reconstructed for writing. This means that we only need
* to make config changes once and they are automatically
* propagated to all devices.
- * Note that the ddf_super has space of the conf and disk data
- * for this disk and also for a list of all such data.
- * The list is only used for the superblock that is being
- * built in Create or Assemble to describe the whole array.
+ * The global (config and disk data) records are each in a list
+ * of separate data structures. When writing we find the entry
+ * or entries applicable to the particular device.
*/
struct ddf_super {
- struct ddf_header anchor, primary, secondary;
+ struct ddf_header anchor, primary, secondary;
struct ddf_controller_data controller;
- struct ddf_header *active;
+ struct ddf_header *active;
struct phys_disk *phys;
struct virtual_disk *virt;
- int pdsize, vdsize;
- unsigned int max_part, mppe, conf_rec_len;
- int currentdev;
- int updates_pending;
+ char *conf;
+ int pdsize, vdsize;
+ unsigned int max_part, mppe, conf_rec_len;
+ int currentdev;
+ int updates_pending;
struct vcl {
union {
char space[512];
struct {
struct vcl *next;
- __u64 *lba_offset; /* location in 'conf' of
- * the lba table */
unsigned int vcnum; /* index into ->virt */
+ /* For an array with a secondary level there are
+ * multiple vd_config structures, all with the same
+ * guid but with different sec_elmnt_seq.
+ * One of these structures is in 'conf' below.
+ * The others are in other_bvds, not in any
+ * particular order.
+ */
+ struct vd_config **other_bvds;
__u64 *block_sizes; /* NULL if all the same */
};
};
char *devname;
int fd;
unsigned long long size; /* sectors */
+ be64 primary_lba; /* sectors */
+ be64 secondary_lba; /* sectors */
+ be64 workspace_lba; /* 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;
+ int displayed;
};
};
struct disk_data disk;
} *dlist, *add_list;
};
-#ifndef offsetof
-#define offsetof(t,f) ((size_t)&(((t*)0)->f))
+#ifndef MDASSEMBLE
+static int load_super_ddf_all(struct supertype *st, int fd,
+ void **sbp, char *devname);
+static int get_svd_state(const struct ddf_super *, const struct vcl *);
+static int
+validate_geometry_ddf_container(struct supertype *st,
+ int level, int layout, int raiddisks,
+ int chunk, unsigned long long size,
+ unsigned long long data_offset,
+ 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,
+ unsigned long long data_offset,
+ char *dev, unsigned long long *freesize,
+ int verbose);
+#endif
+
+static void free_super_ddf(struct supertype *st);
+static int all_ff(const char *guid);
+static unsigned int get_pd_index_from_refnum(const struct vcl *vc,
+ be32 refnum, unsigned int nmax,
+ const struct vd_config **bvd,
+ unsigned int *idx);
+static void getinfo_super_ddf(struct supertype *st, struct mdinfo *info, char *map);
+static void uuid_from_ddf_guid(const char *guid, int uuid[4]);
+static void uuid_from_super_ddf(struct supertype *st, int uuid[4]);
+static void _ddf_array_name(char *name, const struct ddf_super *ddf, int i);
+static void getinfo_super_ddf_bvd(struct supertype *st, struct mdinfo *info, char *map);
+static int init_super_ddf_bvd(struct supertype *st,
+ mdu_array_info_t *info,
+ unsigned long long size,
+ char *name, char *homehost,
+ int *uuid, unsigned long long data_offset);
+
+#if DEBUG
+static void pr_state(struct ddf_super *ddf, const char *msg)
+{
+ unsigned int i;
+ dprintf("%s: ", msg);
+ for (i = 0; i < be16_to_cpu(ddf->active->max_vd_entries); i++) {
+ if (all_ff(ddf->virt->entries[i].guid))
+ continue;
+ dprintf_cont("%u(s=%02x i=%02x) ", i,
+ ddf->virt->entries[i].state,
+ ddf->virt->entries[i].init_state);
+ }
+ dprintf_cont("\n");
+}
+#else
+static void pr_state(const struct ddf_super *ddf, const char *msg) {}
#endif
+static void _ddf_set_updates_pending(struct ddf_super *ddf, struct vd_config *vc,
+ const char *func)
+{
+ if (vc) {
+ vc->timestamp = cpu_to_be32(time(0)-DECADE);
+ vc->seqnum = cpu_to_be32(be32_to_cpu(vc->seqnum) + 1);
+ }
+ if (ddf->updates_pending)
+ return;
+ ddf->updates_pending = 1;
+ ddf->active->seq = cpu_to_be32((be32_to_cpu(ddf->active->seq)+1));
+ pr_state(ddf, func);
+}
+
+#define ddf_set_updates_pending(x,v) _ddf_set_updates_pending((x), (v), __func__)
-static unsigned int calc_crc(void *buf, int len)
+static be32 calc_crc(void *buf, int len)
{
/* crcs are always at the same place as in the ddf_header */
struct ddf_header *ddf = buf;
- __u32 oldcrc = ddf->crc;
+ be32 oldcrc = ddf->crc;
__u32 newcrc;
- ddf->crc = 0xffffffff;
+ ddf->crc = cpu_to_be32(0xffffffff);
newcrc = crc32(0, buf, len);
ddf->crc = oldcrc;
- /* The crc is store (like everything) bigendian, so convert
+ /* The crc is stored (like everything) bigendian, so convert
* here for simplicity
*/
- return __cpu_to_be32(newcrc);
+ return cpu_to_be32(newcrc);
+}
+
+#define DDF_INVALID_LEVEL 0xff
+#define DDF_NO_SECONDARY 0xff
+static int err_bad_md_layout(const mdu_array_info_t *array)
+{
+ pr_err("RAID%d layout %x with %d disks is unsupported for DDF\n",
+ array->level, array->layout, array->raid_disks);
+ return -1;
+}
+
+static int layout_md2ddf(const mdu_array_info_t *array,
+ struct vd_config *conf)
+{
+ be16 prim_elmnt_count = cpu_to_be16(array->raid_disks);
+ __u8 prl = DDF_INVALID_LEVEL, rlq = 0;
+ __u8 sec_elmnt_count = 1;
+ __u8 srl = DDF_NO_SECONDARY;
+
+ switch (array->level) {
+ case LEVEL_LINEAR:
+ prl = DDF_CONCAT;
+ break;
+ case 0:
+ rlq = DDF_RAID0_SIMPLE;
+ prl = DDF_RAID0;
+ break;
+ case 1:
+ switch (array->raid_disks) {
+ case 2:
+ rlq = DDF_RAID1_SIMPLE;
+ break;
+ case 3:
+ rlq = DDF_RAID1_MULTI;
+ break;
+ default:
+ return err_bad_md_layout(array);
+ }
+ prl = DDF_RAID1;
+ break;
+ case 4:
+ if (array->layout != 0)
+ return err_bad_md_layout(array);
+ rlq = DDF_RAID4_N;
+ prl = DDF_RAID4;
+ break;
+ case 5:
+ switch (array->layout) {
+ case ALGORITHM_LEFT_ASYMMETRIC:
+ rlq = DDF_RAID5_N_RESTART;
+ break;
+ case ALGORITHM_RIGHT_ASYMMETRIC:
+ rlq = DDF_RAID5_0_RESTART;
+ break;
+ case ALGORITHM_LEFT_SYMMETRIC:
+ rlq = DDF_RAID5_N_CONTINUE;
+ break;
+ case ALGORITHM_RIGHT_SYMMETRIC:
+ /* not mentioned in standard */
+ default:
+ return err_bad_md_layout(array);
+ }
+ prl = DDF_RAID5;
+ break;
+ case 6:
+ switch (array->layout) {
+ case ALGORITHM_ROTATING_N_RESTART:
+ rlq = DDF_RAID5_N_RESTART;
+ break;
+ case ALGORITHM_ROTATING_ZERO_RESTART:
+ rlq = DDF_RAID6_0_RESTART;
+ break;
+ case ALGORITHM_ROTATING_N_CONTINUE:
+ rlq = DDF_RAID5_N_CONTINUE;
+ break;
+ default:
+ return err_bad_md_layout(array);
+ }
+ prl = DDF_RAID6;
+ break;
+ case 10:
+ if (array->raid_disks % 2 == 0 && array->layout == 0x102) {
+ rlq = DDF_RAID1_SIMPLE;
+ prim_elmnt_count = cpu_to_be16(2);
+ sec_elmnt_count = array->raid_disks / 2;
+ srl = DDF_2SPANNED;
+ prl = DDF_RAID1;
+ } else if (array->raid_disks % 3 == 0
+ && array->layout == 0x103) {
+ rlq = DDF_RAID1_MULTI;
+ prim_elmnt_count = cpu_to_be16(3);
+ sec_elmnt_count = array->raid_disks / 3;
+ srl = DDF_2SPANNED;
+ prl = DDF_RAID1;
+ } else if (array->layout == 0x201) {
+ prl = DDF_RAID1E;
+ rlq = DDF_RAID1E_OFFSET;
+ } else if (array->layout == 0x102) {
+ prl = DDF_RAID1E;
+ rlq = DDF_RAID1E_ADJACENT;
+ } else
+ return err_bad_md_layout(array);
+ break;
+ default:
+ return err_bad_md_layout(array);
+ }
+ conf->prl = prl;
+ conf->prim_elmnt_count = prim_elmnt_count;
+ conf->rlq = rlq;
+ conf->srl = srl;
+ conf->sec_elmnt_count = sec_elmnt_count;
+ return 0;
+}
+
+static int err_bad_ddf_layout(const struct vd_config *conf)
+{
+ pr_err("DDF RAID %u qualifier %u with %u disks is unsupported\n",
+ conf->prl, conf->rlq, be16_to_cpu(conf->prim_elmnt_count));
+ return -1;
+}
+
+static int layout_ddf2md(const struct vd_config *conf,
+ mdu_array_info_t *array)
+{
+ int level = LEVEL_UNSUPPORTED;
+ int layout = 0;
+ int raiddisks = be16_to_cpu(conf->prim_elmnt_count);
+
+ if (conf->sec_elmnt_count > 1) {
+ /* see also check_secondary() */
+ if (conf->prl != DDF_RAID1 ||
+ (conf->srl != DDF_2STRIPED && conf->srl != DDF_2SPANNED)) {
+ pr_err("Unsupported secondary RAID level %u/%u\n",
+ conf->prl, conf->srl);
+ return -1;
+ }
+ if (raiddisks == 2 && conf->rlq == DDF_RAID1_SIMPLE)
+ layout = 0x102;
+ else if (raiddisks == 3 && conf->rlq == DDF_RAID1_MULTI)
+ layout = 0x103;
+ else
+ return err_bad_ddf_layout(conf);
+ raiddisks *= conf->sec_elmnt_count;
+ level = 10;
+ goto good;
+ }
+
+ switch (conf->prl) {
+ case DDF_CONCAT:
+ level = LEVEL_LINEAR;
+ break;
+ case DDF_RAID0:
+ if (conf->rlq != DDF_RAID0_SIMPLE)
+ return err_bad_ddf_layout(conf);
+ level = 0;
+ break;
+ case DDF_RAID1:
+ if (!((conf->rlq == DDF_RAID1_SIMPLE && raiddisks == 2) ||
+ (conf->rlq == DDF_RAID1_MULTI && raiddisks == 3)))
+ return err_bad_ddf_layout(conf);
+ level = 1;
+ break;
+ case DDF_RAID1E:
+ if (conf->rlq == DDF_RAID1E_ADJACENT)
+ layout = 0x102;
+ else if (conf->rlq == DDF_RAID1E_OFFSET)
+ layout = 0x201;
+ else
+ return err_bad_ddf_layout(conf);
+ level = 10;
+ break;
+ case DDF_RAID4:
+ if (conf->rlq != DDF_RAID4_N)
+ return err_bad_ddf_layout(conf);
+ level = 4;
+ break;
+ case DDF_RAID5:
+ switch (conf->rlq) {
+ case DDF_RAID5_N_RESTART:
+ layout = ALGORITHM_LEFT_ASYMMETRIC;
+ break;
+ case DDF_RAID5_0_RESTART:
+ layout = ALGORITHM_RIGHT_ASYMMETRIC;
+ break;
+ case DDF_RAID5_N_CONTINUE:
+ layout = ALGORITHM_LEFT_SYMMETRIC;
+ break;
+ default:
+ return err_bad_ddf_layout(conf);
+ }
+ level = 5;
+ break;
+ case DDF_RAID6:
+ switch (conf->rlq) {
+ case DDF_RAID5_N_RESTART:
+ layout = ALGORITHM_ROTATING_N_RESTART;
+ break;
+ case DDF_RAID6_0_RESTART:
+ layout = ALGORITHM_ROTATING_ZERO_RESTART;
+ break;
+ case DDF_RAID5_N_CONTINUE:
+ layout = ALGORITHM_ROTATING_N_CONTINUE;
+ break;
+ default:
+ return err_bad_ddf_layout(conf);
+ }
+ level = 6;
+ break;
+ default:
+ return err_bad_ddf_layout(conf);
+ };
+
+good:
+ array->level = level;
+ array->layout = layout;
+ array->raid_disks = raiddisks;
+ return 0;
}
static int load_ddf_header(int fd, unsigned long long lba,
if (read(fd, hdr, 512) != 512)
return 0;
- if (hdr->magic != DDF_HEADER_MAGIC)
+ if (!be32_eq(hdr->magic, DDF_HEADER_MAGIC)) {
+ pr_err("bad header magic\n");
return 0;
- if (calc_crc(hdr, 512) != hdr->crc)
+ }
+ if (!be32_eq(calc_crc(hdr, 512), hdr->crc)) {
+ pr_err("bad CRC\n");
return 0;
+ }
if (memcmp(anchor->guid, hdr->guid, DDF_GUID_LEN) != 0 ||
memcmp(anchor->revision, hdr->revision, 8) != 0 ||
- anchor->primary_lba != hdr->primary_lba ||
- anchor->secondary_lba != hdr->secondary_lba ||
+ !be64_eq(anchor->primary_lba, hdr->primary_lba) ||
+ !be64_eq(anchor->secondary_lba, hdr->secondary_lba) ||
hdr->type != type ||
memcmp(anchor->pad2, hdr->pad2, 512 -
- offsetof(struct ddf_header, pad2)) != 0)
+ offsetof(struct ddf_header, pad2)) != 0) {
+ pr_err("header mismatch\n");
return 0;
+ }
/* Looks good enough to me... */
return 1;
}
static void *load_section(int fd, struct ddf_super *super, void *buf,
- __u32 offset_be, __u32 len_be, int check)
+ be32 offset_be, be32 len_be, int check)
{
- unsigned long long offset = __be32_to_cpu(offset_be);
- unsigned long long len = __be32_to_cpu(len_be);
+ unsigned long long offset = be32_to_cpu(offset_be);
+ unsigned long long len = be32_to_cpu(len_be);
int dofree = (buf == NULL);
if (check)
if (len > 1024)
return NULL;
- if (buf) {
- /* All pre-allocated sections are a single block */
- if (len != 1)
- return NULL;
- } else if (posix_memalign(&buf, 512, len<<9) != 0)
+ if (!buf && posix_memalign(&buf, 512, len<<9) != 0)
buf = NULL;
if (!buf)
return NULL;
if (super->active->type == 1)
- offset += __be64_to_cpu(super->active->primary_lba);
+ offset += be64_to_cpu(super->active->primary_lba);
else
- offset += __be64_to_cpu(super->active->secondary_lba);
+ offset += be64_to_cpu(super->active->secondary_lba);
if ((unsigned long long)lseek64(fd, offset<<9, 0) != (offset<<9)) {
if (dofree)
if (lseek64(fd, dsize-512, 0) < 0) {
if (devname)
- fprintf(stderr,
- Name": Cannot seek to anchor block on %s: %s\n",
- devname, strerror(errno));
+ pr_err("Cannot seek to anchor block on %s: %s\n",
+ devname, strerror(errno));
return 1;
}
if (read(fd, &super->anchor, 512) != 512) {
if (devname)
- fprintf(stderr,
- Name ": Cannot read anchor block on %s: %s\n",
- devname, strerror(errno));
+ pr_err("Cannot read anchor block on %s: %s\n",
+ devname, strerror(errno));
return 1;
}
- if (super->anchor.magic != DDF_HEADER_MAGIC) {
+ if (!be32_eq(super->anchor.magic, DDF_HEADER_MAGIC)) {
if (devname)
- fprintf(stderr, Name ": no DDF anchor found on %s\n",
+ pr_err("no DDF anchor found on %s\n",
devname);
return 2;
}
- if (calc_crc(&super->anchor, 512) != super->anchor.crc) {
+ if (!be32_eq(calc_crc(&super->anchor, 512), super->anchor.crc)) {
if (devname)
- fprintf(stderr, Name ": bad CRC on anchor on %s\n",
+ pr_err("bad CRC on anchor on %s\n",
devname);
return 2;
}
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 and earlier, not %.8s on %s\n",
+ pr_err("can only support super revision %.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),
+ super->active = NULL;
+ if (load_ddf_header(fd, be64_to_cpu(super->anchor.primary_lba),
dsize >> 9, 1,
&super->primary, &super->anchor) == 0) {
if (devname)
- fprintf(stderr,
- Name ": Failed to load primary DDF header "
- "on %s\n", devname);
- return 2;
- }
- super->active = &super->primary;
- if (load_ddf_header(fd, __be64_to_cpu(super->anchor.secondary_lba),
+ pr_err("Failed to load primary DDF header on %s\n", devname);
+ } else
+ super->active = &super->primary;
+
+ if (load_ddf_header(fd, be64_to_cpu(super->anchor.secondary_lba),
dsize >> 9, 2,
&super->secondary, &super->anchor)) {
- if ((__be32_to_cpu(super->primary.seq)
- < __be32_to_cpu(super->secondary.seq) &&
- !super->secondary.openflag)
- || (__be32_to_cpu(super->primary.seq)
- == __be32_to_cpu(super->secondary.seq) &&
+ if (super->active == NULL
+ || (be32_to_cpu(super->primary.seq)
+ < be32_to_cpu(super->secondary.seq) &&
+ !super->secondary.openflag)
+ || (be32_to_cpu(super->primary.seq)
+ == be32_to_cpu(super->secondary.seq) &&
super->primary.openflag && !super->secondary.openflag)
)
super->active = &super->secondary;
- }
+ } else if (devname &&
+ be64_to_cpu(super->anchor.secondary_lba) != ~(__u64)0)
+ pr_err("Failed to load secondary DDF header on %s\n",
+ devname);
+ if (super->active == NULL)
+ return 2;
return 0;
}
super->active->phys_section_offset,
super->active->phys_section_length,
1);
- super->pdsize = __be32_to_cpu(super->active->phys_section_length) * 512;
+ super->pdsize = be32_to_cpu(super->active->phys_section_length) * 512;
super->virt = load_section(fd, super, NULL,
super->active->virt_section_offset,
super->active->virt_section_length,
1);
- super->vdsize = __be32_to_cpu(super->active->virt_section_length) * 512;
+ super->vdsize = be32_to_cpu(super->active->virt_section_length) * 512;
if (!ok ||
!super->phys ||
!super->virt) {
super->conflist = NULL;
super->dlist = NULL;
- super->max_part = __be16_to_cpu(super->active->max_partitions);
- super->mppe = __be16_to_cpu(super->active->max_primary_element_entries);
- super->conf_rec_len = __be16_to_cpu(super->active->config_record_len);
+ super->max_part = be16_to_cpu(super->active->max_partitions);
+ super->mppe = be16_to_cpu(super->active->max_primary_element_entries);
+ super->conf_rec_len = be16_to_cpu(super->active->config_record_len);
return 0;
}
+#define DDF_UNUSED_BVD 0xff
+static int alloc_other_bvds(const struct ddf_super *ddf, struct vcl *vcl)
+{
+ unsigned int n_vds = vcl->conf.sec_elmnt_count - 1;
+ unsigned int i, vdsize;
+ void *p;
+ if (n_vds == 0) {
+ vcl->other_bvds = NULL;
+ return 0;
+ }
+ vdsize = ddf->conf_rec_len * 512;
+ if (posix_memalign(&p, 512, n_vds *
+ (vdsize + sizeof(struct vd_config *))) != 0)
+ return -1;
+ vcl->other_bvds = (struct vd_config **) (p + n_vds * vdsize);
+ for (i = 0; i < n_vds; i++) {
+ vcl->other_bvds[i] = p + i * vdsize;
+ memset(vcl->other_bvds[i], 0, vdsize);
+ vcl->other_bvds[i]->sec_elmnt_seq = DDF_UNUSED_BVD;
+ }
+ return 0;
+}
+
+static void add_other_bvd(struct vcl *vcl, struct vd_config *vd,
+ unsigned int len)
+{
+ int i;
+ for (i = 0; i < vcl->conf.sec_elmnt_count-1; i++)
+ if (vcl->other_bvds[i]->sec_elmnt_seq == vd->sec_elmnt_seq)
+ break;
+
+ if (i < vcl->conf.sec_elmnt_count-1) {
+ if (be32_to_cpu(vd->seqnum) <=
+ be32_to_cpu(vcl->other_bvds[i]->seqnum))
+ return;
+ } else {
+ for (i = 0; i < vcl->conf.sec_elmnt_count-1; i++)
+ if (vcl->other_bvds[i]->sec_elmnt_seq == DDF_UNUSED_BVD)
+ break;
+ if (i == vcl->conf.sec_elmnt_count-1) {
+ pr_err("no space for sec level config %u, count is %u\n",
+ vd->sec_elmnt_seq, vcl->conf.sec_elmnt_count);
+ return;
+ }
+ }
+ memcpy(vcl->other_bvds[i], vd, len);
+}
+
static int load_ddf_local(int fd, struct ddf_super *super,
char *devname, int keep)
{
unsigned int i;
unsigned int confsec;
int vnum;
- unsigned int max_virt_disks = __be16_to_cpu(super->active->max_vd_entries);
+ unsigned int max_virt_disks =
+ be16_to_cpu(super->active->max_vd_entries);
unsigned long long dsize;
/* First the local disk info */
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__);
+ sizeof(*dl) +
+ (super->max_part) * sizeof(dl->vlist[0])) != 0) {
+ pr_err("could not allocate disk info buffer\n");
return 1;
}
super->active->data_section_offset,
super->active->data_section_length,
0);
- dl->devname = devname ? strdup(devname) : NULL;
+ dl->devname = devname ? xstrdup(devname) : NULL;
fstat(fd, &stb);
dl->major = major(stb.st_rdev);
dl->size = 0;
if (get_dev_size(fd, devname, &dsize))
dl->size = dsize >> 9;
+ /* If the disks have different sizes, the LBAs will differ
+ * between phys disks.
+ * At this point here, the values in super->active must be valid
+ * for this phys disk. */
+ dl->primary_lba = super->active->primary_lba;
+ dl->secondary_lba = super->active->secondary_lba;
+ dl->workspace_lba = super->active->workspace_lba;
dl->spare = NULL;
for (i = 0 ; i < super->max_part ; i++)
dl->vlist[i] = NULL;
super->dlist = dl;
dl->pdnum = -1;
- for (i = 0; i < __be16_to_cpu(super->active->max_pd_entries); i++)
+ 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;
* the conflist
*/
- conf = load_section(fd, super, NULL,
+ conf = load_section(fd, super, super->conf,
super->active->config_section_offset,
super->active->config_section_length,
0);
-
+ super->conf = conf;
vnum = 0;
for (confsec = 0;
- confsec < __be32_to_cpu(super->active->config_section_length);
+ confsec < be32_to_cpu(super->active->config_section_length);
confsec += super->conf_rec_len) {
struct vd_config *vd =
(struct vd_config *)((char*)conf + confsec*512);
struct vcl *vcl;
- if (vd->magic == DDF_SPARE_ASSIGN_MAGIC) {
+ if (be32_eq(vd->magic, DDF_SPARE_ASSIGN_MAGIC)) {
if (dl->spare)
continue;
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__);
+ super->conf_rec_len*512) != 0) {
+ pr_err("could not allocate spare info buf\n");
return 1;
}
-
+
memcpy(dl->spare, vd, super->conf_rec_len*512);
continue;
}
- if (vd->magic != DDF_VD_CONF_MAGIC)
+ if (!be32_eq(vd->magic, DDF_VD_CONF_MAGIC))
+ /* Must be vendor-unique - I cannot handle those */
continue;
+
for (vcl = super->conflist; vcl; vcl = vcl->next) {
if (memcmp(vcl->conf.guid,
vd->guid, DDF_GUID_LEN) == 0)
if (vcl) {
dl->vlist[vnum++] = vcl;
- if (__be32_to_cpu(vd->seqnum) <=
- __be32_to_cpu(vcl->conf.seqnum))
+ if (vcl->other_bvds != NULL &&
+ vcl->conf.sec_elmnt_seq != vd->sec_elmnt_seq) {
+ add_other_bvd(vcl, vd, super->conf_rec_len*512);
+ continue;
+ }
+ if (be32_to_cpu(vd->seqnum) <=
+ be32_to_cpu(vcl->conf.seqnum))
continue;
} 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__);
+ (super->conf_rec_len*512 +
+ offsetof(struct vcl, conf))) != 0) {
+ pr_err("could not allocate vcl buf\n");
return 1;
}
vcl->next = super->conflist;
vcl->block_sizes = NULL; /* FIXME not for CONCAT */
+ vcl->conf.sec_elmnt_count = vd->sec_elmnt_count;
+ if (alloc_other_bvds(super, vcl) != 0) {
+ pr_err("could not allocate other bvds\n");
+ free(vcl);
+ return 1;
+ };
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)
if (i < max_virt_disks)
vcl->vcnum = i;
}
- free(conf);
return 0;
}
-#ifndef MDASSEMBLE
-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)
{
struct ddf_super *super;
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)
- fprintf(stderr,
- Name ": %s is too small for ddf: "
- "size is %llu sectors.\n",
- devname, dsize>>9);
+ pr_err("%s is too small for ddf: size is %llu sectors.\n",
+ devname, dsize>>9);
return 1;
}
if (dsize & 511) {
if (devname)
- fprintf(stderr,
- Name ": %s is an odd size for ddf: "
- "size is %llu bytes.\n",
- devname, dsize);
+ pr_err("%s is an odd size for ddf: size is %llu bytes.\n",
+ devname, dsize);
return 1;
}
free_super_ddf(st);
if (posix_memalign((void**)&super, 512, sizeof(*super))!= 0) {
- fprintf(stderr, Name ": malloc of %zu failed.\n",
+ pr_err("malloc of %zu failed.\n",
sizeof(*super));
return 1;
}
if (rv) {
if (devname)
- fprintf(stderr,
- Name ": Failed to load all information "
- "sections on %s\n", devname);
+ pr_err("Failed to load all information sections on %s\n", devname);
free(super);
return rv;
}
if (rv) {
if (devname)
- fprintf(stderr,
- Name ": Failed to load all information "
- "sections on %s\n", devname);
+ pr_err("Failed to load all information sections on %s\n", devname);
free(super);
return rv;
}
- if (st->subarray[0]) {
- unsigned long val;
- struct vcl *v;
- char *ep;
-
- val = strtoul(st->subarray, &ep, 10);
- if (*ep != '\0') {
- free(super);
- return 1;
- }
-
- for (v = super->conflist; v; v = v->next)
- if (v->vcnum == val)
- super->currentconf = v;
- if (!super->currentconf) {
- free(super);
- return 1;
- }
- }
-
/* Should possibly check the sections .... */
st->sb = super;
st->minor_version = 0;
st->max_devs = 512;
}
- st->loaded_container = 0;
return 0;
}
return;
free(ddf->phys);
free(ddf->virt);
+ free(ddf->conf);
while (ddf->conflist) {
struct vcl *v = ddf->conflist;
ddf->conflist = v->next;
if (v->block_sizes)
free(v->block_sizes);
+ if (v->other_bvds)
+ /*
+ v->other_bvds[0] points to beginning of buffer,
+ see alloc_other_bvds()
+ */
+ free(v->other_bvds[0]);
free(v);
}
while (ddf->dlist) {
static struct supertype *match_metadata_desc_ddf(char *arg)
{
- /* 'ddf' only support containers */
+ /* 'ddf' only supports containers */
struct supertype *st;
if (strcmp(arg, "ddf") != 0 &&
strcmp(arg, "default") != 0
)
return NULL;
- st = malloc(sizeof(*st));
- memset(st, 0, sizeof(*st));
+ st = xcalloc(1, sizeof(*st));
st->ss = &super_ddf;
st->max_devs = 512;
st->minor_version = 0;
return st;
}
-
#ifndef MDASSEMBLE
static mapping_t ddf_state[] = {
};
#endif
-struct num_mapping {
- int num1, num2;
-};
-static struct num_mapping ddf_level_num[] = {
- { DDF_RAID0, 0 },
- { DDF_RAID1, 1 },
- { DDF_RAID3, LEVEL_UNSUPPORTED },
- { DDF_RAID4, 4 },
- { DDF_RAID5, 5 },
- { DDF_RAID1E, LEVEL_UNSUPPORTED },
- { DDF_JBOD, LEVEL_UNSUPPORTED },
- { DDF_CONCAT, LEVEL_LINEAR },
- { DDF_RAID5E, LEVEL_UNSUPPORTED },
- { DDF_RAID5EE, LEVEL_UNSUPPORTED },
- { DDF_RAID6, 6},
- { MAXINT, MAXINT }
-};
-
-static int map_num1(struct num_mapping *map, int num)
-{
- int i;
- for (i=0 ; map[i].num1 != MAXINT; i++)
- if (map[i].num1 == num)
- break;
- return map[i].num2;
-}
-
-static int all_ff(char *guid)
+static int all_ff(const char *guid)
{
int i;
for (i = 0; i < DDF_GUID_LEN; i++)
return 1;
}
+static const char *guid_str(const char *guid)
+{
+ static char buf[DDF_GUID_LEN*2+1];
+ int i;
+ char *p = buf;
+ for (i = 0; i < DDF_GUID_LEN; i++) {
+ unsigned char c = guid[i];
+ if (c >= 32 && c < 127)
+ p += sprintf(p, "%c", c);
+ else
+ p += sprintf(p, "%02x", c);
+ }
+ *p = '\0';
+ return (const char *) buf;
+}
+
#ifndef MDASSEMBLE
static void print_guid(char *guid, int tstamp)
{
unsigned int i;
struct vd_config *vc = &vcl->conf;
- if (calc_crc(vc, crl*512) != vc->crc)
+ if (!be32_eq(calc_crc(vc, crl*512), vc->crc))
continue;
if (memcmp(vc->guid, guid, DDF_GUID_LEN) != 0)
continue;
/* Ok, we know about this VD, let's give more details */
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++) {
+ 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);
+ int cnt = be16_to_cpu(sb->phys->max_pdes);
for (j=0; j<cnt; j++)
- if (vc->phys_refnum[i] == sb->phys->entries[j].refnum)
+ if (be32_eq(vc->phys_refnum[i],
+ sb->phys->entries[j].refnum))
break;
if (i) printf(" ");
if (j < cnt)
printf("%d", j);
else
printf("--");
+ printf("@%lluK", (unsigned long long) be64_to_cpu(LBA_OFFSET(sb, vc)[i])/2);
}
printf(")\n");
if (vc->chunk_shift != 255)
- printf(" Chunk Size[%d] : %d sectors\n", n,
- 1 << vc->chunk_shift);
+ printf(" Chunk Size[%d] : %d sectors\n", n,
+ 1 << vc->chunk_shift);
printf(" Raid Level[%d] : %s\n", n,
map_num(ddf_level, vc->prl)?:"-unknown-");
if (vc->sec_elmnt_count != 1) {
map_num(ddf_sec_level, vc->srl) ?: "-unknown-");
}
printf(" Device Size[%d] : %llu\n", n,
- (unsigned long long)__be64_to_cpu(vc->blocks)/2);
+ be64_to_cpu(vc->blocks)/2);
printf(" Array Size[%d] : %llu\n", n,
- (unsigned long long)__be64_to_cpu(vc->array_blocks)/2);
+ be64_to_cpu(vc->array_blocks)/2);
}
}
static void examine_vds(struct ddf_super *sb)
{
- int cnt = __be16_to_cpu(sb->virt->populated_vdes);
- int i;
+ int cnt = be16_to_cpu(sb->virt->populated_vdes);
+ unsigned int i;
printf(" Virtual Disks : %d\n", cnt);
- for (i=0; i<cnt; i++) {
+ for (i = 0; i < be16_to_cpu(sb->virt->max_vdes); i++) {
struct virtual_entry *ve = &sb->virt->entries[i];
+ if (all_ff(ve->guid))
+ continue;
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));
+ printf(" unit[%d] : %d\n", i, be16_to_cpu(ve->unit));
printf(" state[%d] : %s, %s%s\n", i,
map_num(ddf_state, ve->state & 7),
- (ve->state & 8) ? "Morphing, ": "",
- (ve->state & 16)? "Not Consistent" : "Consistent");
+ (ve->state & DDF_state_morphing) ? "Morphing, ": "",
+ (ve->state & DDF_state_inconsistent)? "Not Consistent" : "Consistent");
printf(" init state[%d] : %s\n", i,
- map_num(ddf_init_state, ve->init_state&3));
+ map_num(ddf_init_state, ve->init_state&DDF_initstate_mask));
printf(" access[%d] : %s\n", i,
- map_num(ddf_access, (ve->init_state>>6) & 3));
+ map_num(ddf_access, (ve->init_state & DDF_access_mask) >> 6));
printf(" Name[%d] : %.16s\n", i, ve->name);
examine_vd(i, sb, ve->guid);
}
static void examine_pds(struct ddf_super *sb)
{
- int cnt = __be16_to_cpu(sb->phys->used_pdes);
+ int cnt = be16_to_cpu(sb->phys->max_pdes);
int i;
struct dl *dl;
+ int unlisted = 0;
printf(" Physical Disks : %d\n", cnt);
printf(" Number RefNo Size Device Type/State\n");
+ for (dl = sb->dlist; dl; dl = dl->next)
+ dl->displayed = 0;
+
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);
+ int type = be16_to_cpu(pd->type);
+ int state = be16_to_cpu(pd->state);
+ if (be32_to_cpu(pd->refnum) == 0xffffffff)
+ /* Not in use */
+ continue;
//printf(" PD GUID[%d] : ", i); print_guid(pd->guid, 0);
//printf("\n");
printf(" %3d %08x ", i,
- __be32_to_cpu(pd->refnum));
- printf("%8lluK ",
- (unsigned long long)__be64_to_cpu(pd->config_size)>>1);
+ be32_to_cpu(pd->refnum));
+ printf("%8lluK ",
+ be64_to_cpu(pd->config_size)>>1);
for (dl = sb->dlist; dl ; dl = dl->next) {
- if (dl->disk.refnum == pd->refnum) {
+ if (be32_eq(dl->disk.refnum, pd->refnum)) {
char *dv = map_dev(dl->major, dl->minor, 0);
if (dv) {
printf("%-15s", dv);
}
if (!dl)
printf("%15s","");
+ else
+ dl->displayed = 1;
printf(" %s%s%s%s%s",
(type&2) ? "active":"",
(type&4) ? "Global-Spare":"",
(state&64)? ", Missing" : "");
printf("\n");
}
+ for (dl = sb->dlist; dl; dl = dl->next) {
+ char *dv;
+ if (dl->displayed)
+ continue;
+ if (!unlisted)
+ printf(" Physical disks not in metadata!:\n");
+ unlisted = 1;
+ dv = map_dev(dl->major, dl->minor, 0);
+ printf(" %08x %s\n", be32_to_cpu(dl->disk.refnum),
+ dv ? dv : "-unknown-");
+ }
+ if (unlisted)
+ printf("\n");
}
static void examine_super_ddf(struct supertype *st, char *homehost)
{
struct ddf_super *sb = st->sb;
- printf(" Magic : %08x\n", __be32_to_cpu(sb->anchor.magic));
+ printf(" Magic : %08x\n", be32_to_cpu(sb->anchor.magic));
printf(" Version : %.8s\n", sb->anchor.revision);
printf("Controller GUID : "); print_guid(sb->controller.guid, 0);
printf("\n");
printf(" Container GUID : "); print_guid(sb->anchor.guid, 1);
printf("\n");
- printf(" Seq : %08x\n", __be32_to_cpu(sb->active->seq));
- printf(" Redundant hdr : %s\n", sb->secondary.magic == DDF_HEADER_MAGIC
- ?"yes" : "no");
+ printf(" Seq : %08x\n", be32_to_cpu(sb->active->seq));
+ printf(" Redundant hdr : %s\n", (be32_eq(sb->secondary.magic,
+ DDF_HEADER_MAGIC)
+ ?"yes" : "no"));
examine_vds(sb);
examine_pds(sb);
}
-static void getinfo_super_ddf(struct supertype *st, struct mdinfo *info);
+static unsigned int get_vd_num_of_subarray(struct supertype *st)
+{
+ /*
+ * Figure out the VD number for this supertype.
+ * Returns DDF_CONTAINER for the container itself,
+ * and DDF_NOTFOUND on error.
+ */
+ struct ddf_super *ddf = st->sb;
+ struct mdinfo *sra;
+ char *sub, *end;
+ unsigned int vcnum;
-static void uuid_from_super_ddf(struct supertype *st, int uuid[4]);
+ if (*st->container_devnm == '\0')
+ return DDF_CONTAINER;
+
+ sra = sysfs_read(-1, st->devnm, GET_VERSION);
+ if (!sra || sra->array.major_version != -1 ||
+ sra->array.minor_version != -2 ||
+ !is_subarray(sra->text_version))
+ return DDF_NOTFOUND;
+
+ sub = strchr(sra->text_version + 1, '/');
+ if (sub != NULL)
+ vcnum = strtoul(sub + 1, &end, 10);
+ if (sub == NULL || *sub == '\0' || *end != '\0' ||
+ vcnum >= be16_to_cpu(ddf->active->max_vd_entries))
+ return DDF_NOTFOUND;
+
+ return vcnum;
+}
static void brief_examine_super_ddf(struct supertype *st, int verbose)
{
*/
struct mdinfo info;
char nbuf[64];
- getinfo_super_ddf(st, &info);
+ getinfo_super_ddf(st, &info, NULL);
fname_from_uuid(st, &info, nbuf, ':');
printf("ARRAY metadata=ddf UUID=%s\n", nbuf + 5);
static void brief_examine_subarrays_ddf(struct supertype *st, int verbose)
{
- /* We just write a generic DDF ARRAY entry
+ /* We write a DDF ARRAY member entry for each vd, identifying container
+ * by uuid and member by unit number and uuid.
*/
struct ddf_super *ddf = st->sb;
struct mdinfo info;
unsigned int i;
char nbuf[64];
- getinfo_super_ddf(st, &info);
+ getinfo_super_ddf(st, &info, NULL);
fname_from_uuid(st, &info, nbuf, ':');
- for (i = 0; i < __be16_to_cpu(ddf->virt->max_vdes); i++) {
+ 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];
+ char namebuf[17];
if (all_ff(ve->guid))
continue;
memcpy(vcl.conf.guid, ve->guid, DDF_GUID_LEN);
ddf->currentconf =&vcl;
+ vcl.vcnum = i;
uuid_from_super_ddf(st, info.uuid);
fname_from_uuid(st, &info, nbuf1, ':');
- printf("ARRAY container=%s member=%d UUID=%s\n",
+ _ddf_array_name(namebuf, ddf, i);
+ printf("ARRAY%s%s container=%s member=%d UUID=%s\n",
+ namebuf[0] == '\0' ? "" : " /dev/md/", namebuf,
nbuf+5, i, nbuf1+5);
}
}
{
struct mdinfo info;
char nbuf[64];
- getinfo_super_ddf(st, &info);
+ getinfo_super_ddf(st, &info, NULL);
fname_from_uuid(st, &info, nbuf, ':');
printf("MD_METADATA=ddf\n");
printf("MD_LEVEL=container\n");
printf("MD_UUID=%s\n", nbuf+5);
+ printf("MD_DEVICES=%u\n",
+ be16_to_cpu(((struct ddf_super *)st->sb)->phys->used_pdes));
}
-
-static void detail_super_ddf(struct supertype *st, char *homehost)
+static int copy_metadata_ddf(struct supertype *st, int from, int to)
{
- /* FIXME later
- * Could print DDF GUID
- * Need to find which array
- * If whole, briefly list all arrays
- * If one, give name
+ void *buf;
+ unsigned long long dsize, offset;
+ int bytes;
+ struct ddf_header *ddf;
+ int written = 0;
+
+ /* The meta consists of an anchor, a primary, and a secondary.
+ * This all lives at the end of the device.
+ * So it is easiest to find the earliest of primary and
+ * secondary, and copy everything from there.
+ *
+ * Anchor is 512 from end. It contains primary_lba and secondary_lba
+ * we choose one of those
*/
+
+ if (posix_memalign(&buf, 4096, 4096) != 0)
+ return 1;
+
+ if (!get_dev_size(from, NULL, &dsize))
+ goto err;
+
+ if (lseek64(from, dsize-512, 0) < 0)
+ goto err;
+ if (read(from, buf, 512) != 512)
+ goto err;
+ ddf = buf;
+ if (!be32_eq(ddf->magic, DDF_HEADER_MAGIC) ||
+ !be32_eq(calc_crc(ddf, 512), ddf->crc) ||
+ (memcmp(ddf->revision, DDF_REVISION_0, 8) != 0 &&
+ memcmp(ddf->revision, DDF_REVISION_2, 8) != 0))
+ goto err;
+
+ offset = dsize - 512;
+ if ((be64_to_cpu(ddf->primary_lba) << 9) < offset)
+ offset = be64_to_cpu(ddf->primary_lba) << 9;
+ if ((be64_to_cpu(ddf->secondary_lba) << 9) < offset)
+ offset = be64_to_cpu(ddf->secondary_lba) << 9;
+
+ bytes = dsize - offset;
+
+ if (lseek64(from, offset, 0) < 0 ||
+ lseek64(to, offset, 0) < 0)
+ goto err;
+ while (written < bytes) {
+ int n = bytes - written;
+ if (n > 4096)
+ n = 4096;
+ if (read(from, buf, n) != n)
+ goto err;
+ if (write(to, buf, n) != n)
+ goto err;
+ written += n;
+ }
+ free(buf);
+ return 0;
+err:
+ free(buf);
+ return 1;
}
-static void brief_detail_super_ddf(struct supertype *st)
+static void detail_super_ddf(struct supertype *st, char *homehost)
{
- /* FIXME I really need to know which array we are detailing.
- * 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);
+ struct ddf_super *sb = st->sb;
+ int cnt = be16_to_cpu(sb->virt->populated_vdes);
+
+ printf(" Container GUID : "); print_guid(sb->anchor.guid, 1);
+ printf("\n");
+ printf(" Seq : %08x\n", be32_to_cpu(sb->active->seq));
+ printf(" Virtual Disks : %d\n", cnt);
+ printf("\n");
}
#endif
-static int match_home_ddf(struct supertype *st, char *homehost)
+static const char *vendors_with_variable_volume_UUID[] = {
+ "LSI ",
+};
+
+static int volume_id_is_reliable(const struct ddf_super *ddf)
+{
+ int n = ARRAY_SIZE(vendors_with_variable_volume_UUID);
+ int i;
+ for (i = 0; i < n; i++)
+ if (!memcmp(ddf->controller.guid,
+ vendors_with_variable_volume_UUID[i], 8))
+ return 0;
+ return 1;
+}
+
+static void uuid_of_ddf_subarray(const struct ddf_super *ddf,
+ unsigned int vcnum, int uuid[4])
+{
+ char buf[DDF_GUID_LEN+18], sha[20], *p;
+ struct sha1_ctx ctx;
+ if (volume_id_is_reliable(ddf)) {
+ uuid_from_ddf_guid(ddf->virt->entries[vcnum].guid, uuid);
+ return;
+ }
+ /*
+ * Some fake RAID BIOSes (in particular, LSI ones) change the
+ * VD GUID at every boot. These GUIDs are not suitable for
+ * identifying an array. Luckily the header GUID appears to
+ * remain constant.
+ * We construct a pseudo-UUID from the header GUID and those
+ * properties of the subarray that we expect to remain constant.
+ */
+ memset(buf, 0, sizeof(buf));
+ p = buf;
+ memcpy(p, ddf->anchor.guid, DDF_GUID_LEN);
+ p += DDF_GUID_LEN;
+ memcpy(p, ddf->virt->entries[vcnum].name, 16);
+ p += 16;
+ *((__u16 *) p) = vcnum;
+ sha1_init_ctx(&ctx);
+ sha1_process_bytes(buf, sizeof(buf), &ctx);
+ sha1_finish_ctx(&ctx, sha);
+ memcpy(uuid, sha, 4*4);
+}
+
+#ifndef MDASSEMBLE
+static void brief_detail_super_ddf(struct supertype *st)
+{
+ struct mdinfo info;
+ char nbuf[64];
+ struct ddf_super *ddf = st->sb;
+ unsigned int vcnum = get_vd_num_of_subarray(st);
+ if (vcnum == DDF_CONTAINER)
+ uuid_from_super_ddf(st, info.uuid);
+ else if (vcnum == DDF_NOTFOUND)
+ return;
+ else
+ uuid_of_ddf_subarray(ddf, vcnum, info.uuid);
+ fname_from_uuid(st, &info, nbuf,':');
+ printf(" UUID=%s", nbuf + 5);
+}
+#endif
+
+static int match_home_ddf(struct supertype *st, char *homehost)
{
/* It matches 'this' host if the controller is a
* Linux-MD controller with vendor_data matching
- * the hostname
+ * the hostname. It would be nice if we could
+ * test against controller found in /sys or somewhere...
*/
struct ddf_super *ddf = st->sb;
unsigned int len;
}
#ifndef MDASSEMBLE
-static struct vd_config *find_vdcr(struct ddf_super *ddf, unsigned int inst)
+static int find_index_in_bvd(const struct ddf_super *ddf,
+ const struct vd_config *conf, unsigned int n,
+ unsigned int *n_bvd)
+{
+ /*
+ * Find the index of the n-th valid physical disk in this BVD.
+ * Unused entries can be sprinkled in with the used entries,
+ * but don't count.
+ */
+ unsigned int i, j;
+ for (i = 0, j = 0;
+ i < ddf->mppe && j < be16_to_cpu(conf->prim_elmnt_count);
+ i++) {
+ if (be32_to_cpu(conf->phys_refnum[i]) != 0xffffffff) {
+ if (n == j) {
+ *n_bvd = i;
+ return 1;
+ }
+ j++;
+ }
+ }
+ dprintf("couldn't find BVD member %u (total %u)\n",
+ n, be16_to_cpu(conf->prim_elmnt_count));
+ return 0;
+}
+
+/* Given a member array instance number, and a raid disk within that instance,
+ * find the vd_config structure. The offset of the given disk in the phys_refnum
+ * table is returned in n_bvd.
+ * For two-level members with a secondary raid level the vd_config for
+ * the appropriate BVD is returned.
+ * The return value is always &vlc->conf, where vlc is returned in last pointer.
+ */
+static struct vd_config *find_vdcr(struct ddf_super *ddf, unsigned int inst,
+ unsigned int n,
+ unsigned int *n_bvd, struct vcl **vcl)
{
struct vcl *v;
- for (v = ddf->conflist; v; v = v->next)
- if (inst == v->vcnum)
- return &v->conf;
+ for (v = ddf->conflist; v; v = v->next) {
+ unsigned int nsec, ibvd = 0;
+ struct vd_config *conf;
+ if (inst != v->vcnum)
+ continue;
+ conf = &v->conf;
+ if (conf->sec_elmnt_count == 1) {
+ if (find_index_in_bvd(ddf, conf, n, n_bvd)) {
+ *vcl = v;
+ return conf;
+ } else
+ goto bad;
+ }
+ if (v->other_bvds == NULL) {
+ pr_err("BUG: other_bvds is NULL, nsec=%u\n",
+ conf->sec_elmnt_count);
+ goto bad;
+ }
+ nsec = n / be16_to_cpu(conf->prim_elmnt_count);
+ if (conf->sec_elmnt_seq != nsec) {
+ for (ibvd = 1; ibvd < conf->sec_elmnt_count; ibvd++) {
+ if (v->other_bvds[ibvd-1]->sec_elmnt_seq
+ == nsec)
+ break;
+ }
+ if (ibvd == conf->sec_elmnt_count)
+ goto bad;
+ conf = v->other_bvds[ibvd-1];
+ }
+ if (!find_index_in_bvd(ddf, conf,
+ n - nsec*conf->sec_elmnt_count, n_bvd))
+ goto bad;
+ dprintf("found disk %u as member %u in bvd %d of array %u\n",
+ n, *n_bvd, ibvd, inst);
+ *vcl = v;
+ return conf;
+ }
+bad:
+ pr_err("Could't find disk %d in array %u\n", n, inst);
return NULL;
}
#endif
-static int find_phys(struct ddf_super *ddf, __u32 phys_refnum)
+static int find_phys(const struct ddf_super *ddf, be32 phys_refnum)
{
/* Find the entry in phys_disk which has the given refnum
* and return it's index
*/
unsigned int i;
- for (i = 0; i < __be16_to_cpu(ddf->phys->max_pdes); i++)
- if (ddf->phys->entries[i].refnum == phys_refnum)
+ for (i = 0; i < be16_to_cpu(ddf->phys->max_pdes); i++)
+ if (be32_eq(ddf->phys->entries[i].refnum, phys_refnum))
return i;
return -1;
}
+static void uuid_from_ddf_guid(const char *guid, int uuid[4])
+{
+ char buf[20];
+ struct sha1_ctx ctx;
+ sha1_init_ctx(&ctx);
+ sha1_process_bytes(guid, DDF_GUID_LEN, &ctx);
+ sha1_finish_ctx(&ctx, buf);
+ memcpy(uuid, buf, 4*4);
+}
+
static void uuid_from_super_ddf(struct supertype *st, int uuid[4])
{
/* The uuid returned here is used for:
* 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.
*/
struct ddf_super *ddf = st->sb;
struct vcl *vcl = ddf->currentconf;
- char *guid;
- char buf[20];
- struct sha1_ctx ctx;
if (vcl)
- guid = vcl->conf.guid;
+ uuid_of_ddf_subarray(ddf, vcl->vcnum, uuid);
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);
+ uuid_from_ddf_guid(ddf->anchor.guid, uuid);
}
-static void getinfo_super_ddf_bvd(struct supertype *st, struct mdinfo *info);
-
-static void getinfo_super_ddf(struct supertype *st, struct mdinfo *info)
+static void getinfo_super_ddf(struct supertype *st, struct mdinfo *info, char *map)
{
struct ddf_super *ddf = st->sb;
+ int map_disks = info->array.raid_disks;
+ __u32 *cptr;
if (ddf->currentconf) {
- getinfo_super_ddf_bvd(st, info);
+ getinfo_super_ddf_bvd(st, info, map);
return;
}
+ memset(info, 0, sizeof(*info));
- info->array.raid_disks = __be16_to_cpu(ddf->phys->used_pdes);
+ info->array.raid_disks = be16_to_cpu(ddf->phys->used_pdes);
info->array.level = LEVEL_CONTAINER;
info->array.layout = 0;
info->array.md_minor = -1;
- info->array.ctime = DECADE + __be32_to_cpu(*(__u32*)
- (ddf->anchor.guid+16));
- info->array.utime = 0;
+ cptr = (__u32 *)(ddf->anchor.guid + 16);
+ info->array.ctime = DECADE + __be32_to_cpu(*cptr);
+
info->array.chunk_size = 0;
info->container_enough = 1;
-
- info->disk.major = 0;
- info->disk.minor = 0;
+ info->disk.major = 0;
+ info->disk.minor = 0;
if (ddf->dlist) {
- info->disk.number = __be32_to_cpu(ddf->dlist->disk.refnum);
+ struct phys_disk_entry *pde = NULL;
+ info->disk.number = be32_to_cpu(ddf->dlist->disk.refnum);
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->data_offset = be64_to_cpu(ddf->phys->
+ entries[info->disk.raid_disk].
+ config_size);
info->component_size = ddf->dlist->size - info->data_offset;
+ if (info->disk.raid_disk >= 0)
+ pde = ddf->phys->entries + info->disk.raid_disk;
+ if (pde &&
+ !(be16_to_cpu(pde->state) & DDF_Failed) &&
+ !(be16_to_cpu(pde->state) & DDF_Missing))
+ info->disk.state = (1 << MD_DISK_SYNC) | (1 << MD_DISK_ACTIVE);
+ else
+ info->disk.state = 1 << MD_DISK_FAULTY;
+
} else {
+ /* There should always be a dlist, but just in case...*/
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) | (1 << MD_DISK_ACTIVE);
}
- info->disk.state = (1 << MD_DISK_SYNC) | (1 << MD_DISK_ACTIVE);
-
+ info->events = be32_to_cpu(ddf->active->seq);
+ info->array.utime = DECADE + be32_to_cpu(ddf->active->timestamp);
info->recovery_start = MaxSector;
info->reshape_active = 0;
+ info->recovery_blocked = 0;
info->name[0] = 0;
info->array.major_version = -1;
uuid_from_super_ddf(st, info->uuid);
+ if (map) {
+ int i, e = 0;
+ int max = be16_to_cpu(ddf->phys->max_pdes);
+ for (i = e = 0 ; i < map_disks ; i++, e++) {
+ while (e < max &&
+ be32_to_cpu(ddf->phys->entries[e].refnum) == 0xffffffff)
+ e++;
+ if (i < info->array.raid_disks && e < max &&
+ !(be16_to_cpu(ddf->phys->entries[e].state)
+ & DDF_Failed))
+ map[i] = 1;
+ else
+ map[i] = 0;
+ }
+ }
}
-static int rlq_to_layout(int rlq, int prl, int raiddisks);
+/* size of name must be at least 17 bytes! */
+static void _ddf_array_name(char *name, const struct ddf_super *ddf, int i)
+{
+ int j;
+ memcpy(name, ddf->virt->entries[i].name, 16);
+ name[16] = 0;
+ for(j = 0; j < 16; j++)
+ if (name[j] == ' ')
+ name[j] = 0;
+}
-static void getinfo_super_ddf_bvd(struct supertype *st, struct mdinfo *info)
+static void getinfo_super_ddf_bvd(struct supertype *st, struct mdinfo *info, char *map)
{
struct ddf_super *ddf = st->sb;
struct vcl *vc = ddf->currentconf;
int cd = ddf->currentdev;
+ int n_prim;
int j;
- struct dl *dl;
-
- /* FIXME this returns BVD info - what if we want SVD ?? */
+ struct dl *dl = NULL;
+ int map_disks = info->array.raid_disks;
+ __u32 *cptr;
+ struct vd_config *conf;
- 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);
+ memset(info, 0, sizeof(*info));
+ if (layout_ddf2md(&vc->conf, &info->array) == -1)
+ return;
info->array.md_minor = -1;
- info->array.ctime = DECADE +
- __be32_to_cpu(*(__u32*)(vc->conf.guid+16));
- info->array.utime = DECADE + __be32_to_cpu(vc->conf.timestamp);
+ cptr = (__u32 *)(vc->conf.guid + 16);
+ info->array.ctime = DECADE + __be32_to_cpu(*cptr);
+ info->array.utime = DECADE + be32_to_cpu(vc->conf.timestamp);
info->array.chunk_size = 512 << vc->conf.chunk_shift;
- info->custom_array_size = 0;
+ info->custom_array_size = be64_to_cpu(vc->conf.array_blocks);
+
+ conf = &vc->conf;
+ n_prim = be16_to_cpu(conf->prim_elmnt_count);
+ if (conf->sec_elmnt_count > 1 && cd >= n_prim) {
+ int ibvd = cd / n_prim - 1;
+ cd %= n_prim;
+ conf = vc->other_bvds[ibvd];
+ }
if (cd >= 0 && (unsigned)cd < ddf->mppe) {
- info->data_offset = __be64_to_cpu(vc->lba_offset[cd]);
+ info->data_offset =
+ be64_to_cpu(LBA_OFFSET(ddf, conf)[cd]);
if (vc->block_sizes)
info->component_size = vc->block_sizes[cd];
else
- info->component_size = __be64_to_cpu(vc->conf.blocks);
+ info->component_size = be64_to_cpu(conf->blocks);
+
+ for (dl = ddf->dlist; dl ; dl = dl->next)
+ if (be32_eq(dl->disk.refnum, conf->phys_refnum[cd]))
+ break;
}
- 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.state = 0;
+ if (dl && dl->pdnum >= 0) {
info->disk.major = dl->major;
info->disk.minor = dl->minor;
+ info->disk.raid_disk = cd + conf->sec_elmnt_seq
+ * be16_to_cpu(conf->prim_elmnt_count);
+ info->disk.number = dl->pdnum;
+ info->disk.state = 0;
+ if (info->disk.number >= 0 &&
+ (be16_to_cpu(ddf->phys->entries[info->disk.number].state) & DDF_Online) &&
+ !(be16_to_cpu(ddf->phys->entries[info->disk.number].state) & DDF_Failed))
+ info->disk.state = (1<<MD_DISK_SYNC)|(1<<MD_DISK_ACTIVE);
+ info->events = be32_to_cpu(ddf->active->seq);
}
-// 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->recovery_start = MaxSector;
info->resync_start = 0;
info->reshape_active = 0;
+ info->recovery_blocked = 0;
if (!(ddf->virt->entries[info->container_member].state
& DDF_state_inconsistent) &&
(ddf->virt->entries[info->container_member].init_state
info->array.major_version = -1;
info->array.minor_version = -2;
- sprintf(info->text_version, "/%s/%s",
- devnum2devname(st->container_dev),
- 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;
+ sprintf(info->text_version, "/%s/%d",
+ st->container_devnm,
+ info->container_member);
+ info->safe_mode_delay = DDF_SAFE_MODE_DELAY;
+
+ _ddf_array_name(info->name, ddf, info->container_member);
+
+ if (map)
+ for (j = 0; j < map_disks; j++) {
+ map[j] = 0;
+ if (j < info->array.raid_disks) {
+ int i = find_phys(ddf, vc->conf.phys_refnum[j]);
+ if (i >= 0 &&
+ (be16_to_cpu(ddf->phys->entries[i].state)
+ & DDF_Online) &&
+ !(be16_to_cpu(ddf->phys->entries[i].state)
+ & DDF_Failed))
+ map[i] = 1;
+ }
+ }
}
-
static int update_super_ddf(struct supertype *st, struct mdinfo *info,
char *update,
char *devname, int verbose,
// 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
+ * there is no need to 'trick' the kernel. When the metadata is
* first updated to activate the array, all the implied modifications
* will just happen.
*/
if (strcmp(update, "grow") == 0) {
/* FIXME */
- }
- if (strcmp(update, "resync") == 0) {
+ } else if (strcmp(update, "resync") == 0) {
// info->resync_checkpoint = 0;
- }
- /* We ignore UUID updates as they make even less sense
- * with DDF
- */
- if (strcmp(update, "homehost") == 0) {
+ } else if (strcmp(update, "homehost") == 0) {
/* homehost is stored in controller->vendor_data,
* or it is when we are the vendor
*/
// if (info->vendor_is_local)
// strcpy(ddf->controller.vendor_data, homehost);
- }
- if (strcmp(update, "name") == 0) {
+ rv = -1;
+ } else if (strcmp(update, "name") == 0) {
/* name is stored in virtual_entry->name */
// memset(ve->name, ' ', 16);
// strncpy(ve->name, info->name, 16);
- }
- if (strcmp(update, "_reshape_progress") == 0) {
+ rv = -1;
+ } else if (strcmp(update, "_reshape_progress") == 0) {
/* We don't support reshape yet */
- }
+ } else if (strcmp(update, "assemble") == 0 ) {
+ /* Do nothing, just succeed */
+ rv = 0;
+ } else
+ rv = -1;
// update_all_csum(ddf);
static void make_header_guid(char *guid)
{
- __u32 stamp;
+ be32 stamp;
/* Create a DDF Header of Virtual Disk GUID */
/* 24 bytes of fiction required.
* Remaining 8 random number plus timestamp
*/
memcpy(guid, T10, sizeof(T10));
- stamp = __cpu_to_be32(0xdeadbeef);
+ stamp = cpu_to_be32(0xdeadbeef);
memcpy(guid+8, &stamp, 4);
- stamp = __cpu_to_be32(0);
+ stamp = cpu_to_be32(0);
memcpy(guid+12, &stamp, 4);
- stamp = __cpu_to_be32(time(0) - DECADE);
+ stamp = cpu_to_be32(time(0) - DECADE);
memcpy(guid+16, &stamp, 4);
- stamp = random32();
+ stamp._v32 = random32();
memcpy(guid+20, &stamp, 4);
}
-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 unsigned int find_unused_vde(const struct ddf_super *ddf)
+{
+ unsigned int i;
+ for (i = 0; i < be16_to_cpu(ddf->virt->max_vdes); i++) {
+ if (all_ff(ddf->virt->entries[i].guid))
+ return i;
+ }
+ return DDF_NOTFOUND;
+}
+
+static unsigned int find_vde_by_name(const struct ddf_super *ddf,
+ const char *name)
+{
+ unsigned int i;
+ if (name == NULL)
+ return DDF_NOTFOUND;
+ for (i = 0; i < be16_to_cpu(ddf->virt->max_vdes); i++) {
+ if (all_ff(ddf->virt->entries[i].guid))
+ continue;
+ if (!strncmp(name, ddf->virt->entries[i].name,
+ sizeof(ddf->virt->entries[i].name)))
+ return i;
+ }
+ return DDF_NOTFOUND;
+}
+
+#ifndef MDASSEMBLE
+static unsigned int find_vde_by_guid(const struct ddf_super *ddf,
+ const char *guid)
+{
+ unsigned int i;
+ if (guid == NULL || all_ff(guid))
+ return DDF_NOTFOUND;
+ for (i = 0; i < be16_to_cpu(ddf->virt->max_vdes); i++)
+ if (!memcmp(ddf->virt->entries[i].guid, guid, DDF_GUID_LEN))
+ return i;
+ return DDF_NOTFOUND;
+}
+#endif
static int init_super_ddf(struct supertype *st,
mdu_array_info_t *info,
unsigned long long size, char *name, char *homehost,
- int *uuid)
+ int *uuid, unsigned long long data_offset)
{
/* This is primarily called by Create when creating a new array.
* We will then get add_to_super called for each component, and then
* We need to create the entire 'ddf' structure which includes:
* DDF headers - these are easy.
* Controller data - a Sector describing this controller .. not that
- * this is a controller exactly.
+ * this is a controller exactly.
* Physical Disk Record - one entry per device, so
- * leave plenty of space.
+ * leave plenty of space.
* Virtual Disk Records - again, just leave plenty of space.
- * This just lists VDs, doesn't give details
- * Config records - describes the VDs that use this disk
+ * This just lists VDs, doesn't give details.
+ * Config records - describe the VDs that use this disk
* DiskData - describes 'this' device.
* BadBlockManagement - empty
* Diag Space - empty
struct virtual_disk *vd;
if (st->sb)
- return init_super_ddf_bvd(st, info, size, name, homehost, uuid);
+ return init_super_ddf_bvd(st, info, size, name, homehost, uuid,
+ data_offset);
if (posix_memalign((void**)&ddf, 512, sizeof(*ddf)) != 0) {
- fprintf(stderr, Name ": %s could not allocate superblock\n", __func__);
+ pr_err("could not allocate superblock\n");
return 0;
}
memset(ddf, 0, sizeof(*ddf));
- ddf->dlist = NULL; /* no physical disks yet */
- ddf->conflist = NULL; /* No virtual disks yet */
st->sb = ddf;
if (info == NULL) {
* start 32MB from the end, and put the primary header there.
* Don't do secondary for now.
* We don't know exactly where that will be yet as it could be
- * different on each device. To just set up the lengths.
- *
+ * different on each device. So just set up the lengths.
*/
ddf->anchor.magic = DDF_HEADER_MAGIC;
make_header_guid(ddf->anchor.guid);
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.seq = cpu_to_be32(1);
+ ddf->anchor.timestamp = cpu_to_be32(time(0) - DECADE);
ddf->anchor.openflag = 0xFF;
ddf->anchor.foreignflag = 0;
ddf->anchor.enforcegroups = 0; /* Is this best?? */
ddf->anchor.pad0 = 0xff;
memset(ddf->anchor.pad1, 0xff, 12);
memset(ddf->anchor.header_ext, 0xff, 32);
- ddf->anchor.primary_lba = ~(__u64)0;
- ddf->anchor.secondary_lba = ~(__u64)0;
+ ddf->anchor.primary_lba = cpu_to_be64(~(__u64)0);
+ ddf->anchor.secondary_lba = cpu_to_be64(~(__u64)0);
ddf->anchor.type = DDF_HEADER_ANCHOR;
memset(ddf->anchor.pad2, 0xff, 3);
- ddf->anchor.workspace_len = __cpu_to_be32(32768); /* Must be reserved */
- ddf->anchor.workspace_lba = ~(__u64)0; /* Put this at bottom
- of 32M reserved.. */
- max_phys_disks = 1023; /* Should be enough */
- ddf->anchor.max_pd_entries = __cpu_to_be16(max_phys_disks);
- max_virt_disks = 255;
- ddf->anchor.max_vd_entries = __cpu_to_be16(max_virt_disks); /* ?? */
- ddf->anchor.max_partitions = __cpu_to_be16(64); /* ?? */
+ ddf->anchor.workspace_len = cpu_to_be32(32768); /* Must be reserved */
+ /* Put this at bottom of 32M reserved.. */
+ ddf->anchor.workspace_lba = cpu_to_be64(~(__u64)0);
+ max_phys_disks = 1023; /* Should be enough, 4095 is also allowed */
+ ddf->anchor.max_pd_entries = cpu_to_be16(max_phys_disks);
+ max_virt_disks = 255; /* 15, 63, 255, 1024, 4095 are all allowed */
+ ddf->anchor.max_vd_entries = cpu_to_be16(max_virt_disks);
ddf->max_part = 64;
- ddf->mppe = 256;
+ ddf->anchor.max_partitions = cpu_to_be16(ddf->max_part);
+ ddf->mppe = 256; /* 16, 64, 256, 1024, 4096 are all allowed */
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);
+ 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
+ /* Controller section is one sector long immediately
* after the ddf header */
sector = 1;
- ddf->anchor.controller_section_offset = __cpu_to_be32(sector);
- ddf->anchor.controller_section_length = __cpu_to_be32(1);
+ ddf->anchor.controller_section_offset = cpu_to_be32(sector);
+ ddf->anchor.controller_section_length = cpu_to_be32(1);
sector += 1;
/* phys is 8 sectors after that */
case 2: case 8: case 32: case 128: case 512: break;
default: abort();
}
- ddf->anchor.phys_section_offset = __cpu_to_be32(sector);
+ ddf->anchor.phys_section_offset = cpu_to_be32(sector);
ddf->anchor.phys_section_length =
- __cpu_to_be32(pdsize/512); /* max_primary_element_entries/8 */
+ cpu_to_be32(pdsize/512); /* max_primary_element_entries/8 */
sector += pdsize/512;
/* virt is another 32 sectors */
case 2: case 8: case 32: case 128: case 512: break;
default: abort();
}
- ddf->anchor.virt_section_offset = __cpu_to_be32(sector);
+ ddf->anchor.virt_section_offset = cpu_to_be32(sector);
ddf->anchor.virt_section_length =
- __cpu_to_be32(vdsize/512); /* max_vd_entries/8 */
+ cpu_to_be32(vdsize/512); /* max_vd_entries/8 */
sector += vdsize/512;
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);
+ ddf->anchor.config_section_offset = cpu_to_be32(sector);
+ ddf->anchor.config_section_length = cpu_to_be32(clen);
sector += clen;
- ddf->anchor.data_section_offset = __cpu_to_be32(sector);
- ddf->anchor.data_section_length = __cpu_to_be32(1);
+ ddf->anchor.data_section_offset = cpu_to_be32(sector);
+ ddf->anchor.data_section_length = cpu_to_be32(1);
sector += 1;
- ddf->anchor.bbm_section_length = __cpu_to_be32(0);
- ddf->anchor.bbm_section_offset = __cpu_to_be32(0xFFFFFFFF);
- ddf->anchor.diag_space_length = __cpu_to_be32(0);
- ddf->anchor.diag_space_offset = __cpu_to_be32(0xFFFFFFFF);
- ddf->anchor.vendor_length = __cpu_to_be32(0);
- ddf->anchor.vendor_offset = __cpu_to_be32(0xFFFFFFFF);
+ ddf->anchor.bbm_section_length = cpu_to_be32(0);
+ ddf->anchor.bbm_section_offset = cpu_to_be32(0xFFFFFFFF);
+ ddf->anchor.diag_space_length = cpu_to_be32(0);
+ ddf->anchor.diag_space_offset = cpu_to_be32(0xFFFFFFFF);
+ ddf->anchor.vendor_length = cpu_to_be32(0);
+ ddf->anchor.vendor_offset = cpu_to_be32(0xFFFFFFFF);
memset(ddf->anchor.pad4, 0xff, 256);
for (i = strlen(T10) ; i+hostlen < 24; i++)
ddf->controller.guid[i] = ' ';
- ddf->controller.type.vendor_id = __cpu_to_be16(0xDEAD);
- ddf->controller.type.device_id = __cpu_to_be16(0xBEEF);
- ddf->controller.type.sub_vendor_id = 0;
- ddf->controller.type.sub_device_id = 0;
+ ddf->controller.type.vendor_id = cpu_to_be16(0xDEAD);
+ ddf->controller.type.device_id = cpu_to_be16(0xBEEF);
+ ddf->controller.type.sub_vendor_id = cpu_to_be16(0);
+ ddf->controller.type.sub_device_id = cpu_to_be16(0);
memcpy(ddf->controller.product_id, "What Is My PID??", 16);
memset(ddf->controller.pad, 0xff, 8);
memset(ddf->controller.vendor_data, 0xff, 448);
strcpy((char*)ddf->controller.vendor_data, homehost);
if (posix_memalign((void**)&pd, 512, pdsize) != 0) {
- fprintf(stderr, Name ": %s could not allocate pd\n", __func__);
+ pr_err("could not allocate pd\n");
return 0;
}
ddf->phys = pd;
memset(pd, 0xff, pdsize);
memset(pd, 0, sizeof(*pd));
pd->magic = DDF_PHYS_RECORDS_MAGIC;
- pd->used_pdes = __cpu_to_be16(0);
- pd->max_pdes = __cpu_to_be16(max_phys_disks);
+ pd->used_pdes = cpu_to_be16(0);
+ pd->max_pdes = cpu_to_be16(max_phys_disks);
memset(pd->pad, 0xff, 52);
+ for (i = 0; i < max_phys_disks; i++)
+ memset(pd->entries[i].guid, 0xff, DDF_GUID_LEN);
if (posix_memalign((void**)&vd, 512, vdsize) != 0) {
- fprintf(stderr, Name ": %s could not allocate vd\n", __func__);
+ pr_err("could not allocate vd\n");
return 0;
}
ddf->virt = vd;
ddf->vdsize = vdsize;
memset(vd, 0, vdsize);
vd->magic = DDF_VIRT_RECORDS_MAGIC;
- vd->populated_vdes = __cpu_to_be16(0);
- vd->max_vdes = __cpu_to_be16(max_virt_disks);
+ vd->populated_vdes = cpu_to_be16(0);
+ vd->max_vdes = cpu_to_be16(max_virt_disks);
memset(vd->pad, 0xff, 52);
for (i=0; i<max_virt_disks; i++)
memset(&vd->entries[i], 0xff, sizeof(struct virtual_entry));
st->sb = ddf;
- ddf->updates_pending = 1;
+ ddf_set_updates_pending(ddf, NULL);
return 1;
}
return ffs(chunksize/512)-1;
}
-static int level_to_prl(int level)
-{
- switch (level) {
- case LEVEL_LINEAR: return DDF_CONCAT;
- case 0: return DDF_RAID0;
- case 1: return DDF_RAID1;
- case 4: return DDF_RAID4;
- case 5: return DDF_RAID5;
- case 6: return DDF_RAID6;
- default: return -1;
- }
-}
-static int layout_to_rlq(int level, int layout, int raiddisks)
-{
- switch(level) {
- case 0:
- return DDF_RAID0_SIMPLE;
- case 1:
- switch(raiddisks) {
- case 2: return DDF_RAID1_SIMPLE;
- case 3: return DDF_RAID1_MULTI;
- default: return -1;
- }
- case 4:
- switch(layout) {
- case 0: return DDF_RAID4_N;
- }
- break;
- case 5:
- switch(layout) {
- case ALGORITHM_LEFT_ASYMMETRIC:
- return DDF_RAID5_N_RESTART;
- case ALGORITHM_RIGHT_ASYMMETRIC:
- 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;
-}
-
-static int rlq_to_layout(int rlq, int prl, int raiddisks)
-{
- switch(prl) {
- case DDF_RAID0:
- return 0; /* hopefully rlq == DDF_RAID0_SIMPLE */
- case DDF_RAID1:
- return 0; /* hopefully rlq == SIMPLE or MULTI depending
- on raiddisks*/
- case DDF_RAID4:
- switch(rlq) {
- case DDF_RAID4_N:
- return 0;
- default:
- /* not supported */
- return -1; /* FIXME this isn't checked */
- }
- case DDF_RAID5:
- switch(rlq) {
- case DDF_RAID5_N_RESTART:
- return ALGORITHM_LEFT_ASYMMETRIC;
- case DDF_RAID5_0_RESTART:
- return ALGORITHM_RIGHT_ASYMMETRIC;
- case DDF_RAID5_N_CONTINUE:
- return ALGORITHM_LEFT_SYMMETRIC;
- 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 struct extent *get_extents(struct ddf_super *ddf, struct dl *dl)
{
- /* find a list of used extents on the give physical device
+ /* Find a list of used extents on the given 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;
- unsigned int i, j;
+ unsigned int i;
+ __u16 state;
- rv = malloc(sizeof(struct extent) * (ddf->max_part + 2));
- if (!rv)
+ if (dl->pdnum < 0)
return NULL;
+ state = be16_to_cpu(ddf->phys->entries[dl->pdnum].state);
+
+ if ((state & (DDF_Online|DDF_Failed|DDF_Missing)) != DDF_Online)
+ return NULL;
+
+ rv = xmalloc(sizeof(struct extent) * (ddf->max_part + 2));
for (i = 0; i < ddf->max_part; i++) {
+ const struct vd_config *bvd;
+ unsigned int ibvd;
struct vcl *v = dl->vlist[i];
- if (v == NULL)
+ if (v == NULL ||
+ get_pd_index_from_refnum(v, dl->disk.refnum, ddf->mppe,
+ &bvd, &ibvd) == DDF_NOTFOUND)
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;
- }
+ rv[n].start = be64_to_cpu(LBA_OFFSET(ddf, bvd)[ibvd]);
+ rv[n].size = be64_to_cpu(bvd->blocks);
+ n++;
}
qsort(rv, n, sizeof(*rv), cmp_extent);
- rv[n].start = __be64_to_cpu(ddf->phys->entries[dl->pdnum].config_size);
+ rv[n].start = be64_to_cpu(ddf->phys->entries[dl->pdnum].config_size);
rv[n].size = 0;
return rv;
}
+
+static unsigned long long find_space(
+ struct ddf_super *ddf, struct dl *dl,
+ unsigned long long data_offset,
+ unsigned long long *size)
+{
+ /* Find if the requested amount of space is available.
+ * If it is, return start.
+ * If not, set *size to largest space.
+ * If data_offset != INVALID_SECTORS, then the space must start
+ * at this location.
+ */
+ struct extent *e = get_extents(ddf, dl);
+ int i = 0;
+ unsigned long long pos = 0;
+ unsigned long long max_size = 0;
+
+ if (!e) {
+ *size = 0;
+ return INVALID_SECTORS;
+ }
+ do {
+ unsigned long long esize = e[i].start - pos;
+ if (data_offset != INVALID_SECTORS &&
+ pos <= data_offset &&
+ e[i].start > data_offset) {
+ pos = data_offset;
+ esize = e[i].start - pos;
+ }
+ if (data_offset != INVALID_SECTORS &&
+ pos != data_offset) {
+ i++;
+ continue;
+ }
+ if (esize >= *size) {
+ /* Found! */
+ free(e);
+ return pos;
+ }
+ if (esize > max_size)
+ max_size = esize;
+ pos = e[i].start + e[i].size;
+ i++;
+ } while (e[i-1].size);
+ *size = max_size;
+ free(e);
+ return INVALID_SECTORS;
+}
#endif
static int init_super_ddf_bvd(struct supertype *st,
mdu_array_info_t *info,
unsigned long long size,
char *name, char *homehost,
- int *uuid)
+ int *uuid, unsigned long long data_offset)
{
/* We are creating a BVD inside a pre-existing container.
* so st->sb is already set.
* We need to create a new vd_config and a new virtual_entry
*/
struct ddf_super *ddf = st->sb;
- unsigned int venum;
+ unsigned int venum, i;
struct virtual_entry *ve;
struct vcl *vcl;
struct vd_config *vc;
- if (__be16_to_cpu(ddf->virt->populated_vdes)
- >= __be16_to_cpu(ddf->virt->max_vdes)) {
- fprintf(stderr, Name": This ddf already has the "
- "maximum of %d virtual devices\n",
- __be16_to_cpu(ddf->virt->max_vdes));
+ if (find_vde_by_name(ddf, name) != DDF_NOTFOUND) {
+ pr_err("This ddf already has an array called %s\n", name);
return 0;
}
-
- if (name)
- for (venum = 0; venum < __be16_to_cpu(ddf->virt->max_vdes); venum++)
- if (!all_ff(ddf->virt->entries[venum].guid)) {
- char *n = ddf->virt->entries[venum].name;
-
- if (strncmp(name, n, 16) == 0) {
- fprintf(stderr, Name ": This ddf already"
- " has an array called %s\n",
- name);
- return 0;
- }
- }
-
- for (venum = 0; venum < __be16_to_cpu(ddf->virt->max_vdes); venum++)
- if (all_ff(ddf->virt->entries[venum].guid))
- break;
- if (venum == __be16_to_cpu(ddf->virt->max_vdes)) {
- fprintf(stderr, Name ": Cannot find spare slot for "
- "virtual disk - DDF is corrupt\n");
+ venum = find_unused_vde(ddf);
+ if (venum == DDF_NOTFOUND) {
+ pr_err("Cannot find spare slot for virtual disk\n");
return 0;
}
ve = &ddf->virt->entries[venum];
* timestamp, random number
*/
make_header_guid(ve->guid);
- ve->unit = __cpu_to_be16(info->md_minor);
+ ve->unit = cpu_to_be16(info->md_minor);
ve->pad0 = 0xFFFF;
- ve->guid_crc = crc32(0, (unsigned char*)ddf->anchor.guid, DDF_GUID_LEN);
- ve->type = 0;
+ ve->guid_crc._v16 = crc32(0, (unsigned char *)ddf->anchor.guid,
+ DDF_GUID_LEN);
+ ve->type = cpu_to_be16(0);
ve->state = DDF_state_degraded; /* Will be modified as devices are added */
if (info->state & 1) /* clean */
ve->init_state = DDF_init_full;
if (name)
strncpy(ve->name, name, 16);
ddf->virt->populated_vdes =
- __cpu_to_be16(__be16_to_cpu(ddf->virt->populated_vdes)+1);
+ cpu_to_be16(be16_to_cpu(ddf->virt->populated_vdes)+1);
/* Now create a new vd_config */
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__);
+ pr_err("could not allocate vd_config\n");
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;
vc->magic = DDF_VD_CONF_MAGIC;
memcpy(vc->guid, ve->guid, DDF_GUID_LEN);
- vc->timestamp = __cpu_to_be32(time(0)-DECADE);
- vc->seqnum = __cpu_to_be32(1);
+ vc->timestamp = cpu_to_be32(time(0)-DECADE);
+ vc->seqnum = cpu_to_be32(1);
memset(vc->pad0, 0xff, 24);
- vc->prim_elmnt_count = __cpu_to_be16(info->raid_disks);
vc->chunk_shift = chunk_to_shift(info->chunk_size);
- vc->prl = level_to_prl(info->level);
- vc->rlq = layout_to_rlq(info->level, info->layout, info->raid_disks);
- vc->sec_elmnt_count = 1;
+ if (layout_md2ddf(info, vc) == -1 ||
+ be16_to_cpu(vc->prim_elmnt_count) > ddf->mppe) {
+ pr_err("unsupported RAID level/layout %d/%d with %d disks\n",
+ info->level, info->layout, info->raid_disks);
+ free(vcl);
+ return 0;
+ }
vc->sec_elmnt_seq = 0;
- vc->srl = 0;
- vc->blocks = __cpu_to_be64(info->size * 2);
- vc->array_blocks = __cpu_to_be64(
+ if (alloc_other_bvds(ddf, vcl) != 0) {
+ pr_err("could not allocate other bvds\n");
+ free(vcl);
+ return 0;
+ }
+ vc->blocks = cpu_to_be64(info->size * 2);
+ vc->array_blocks = cpu_to_be64(
calc_array_size(info->level, info->raid_disks, info->layout,
info->chunk_size, info->size*2));
memset(vc->pad1, 0xff, 8);
- vc->spare_refs[0] = 0xffffffff;
- vc->spare_refs[1] = 0xffffffff;
- vc->spare_refs[2] = 0xffffffff;
- vc->spare_refs[3] = 0xffffffff;
- vc->spare_refs[4] = 0xffffffff;
- vc->spare_refs[5] = 0xffffffff;
- vc->spare_refs[6] = 0xffffffff;
- vc->spare_refs[7] = 0xffffffff;
+ vc->spare_refs[0] = cpu_to_be32(0xffffffff);
+ vc->spare_refs[1] = cpu_to_be32(0xffffffff);
+ vc->spare_refs[2] = cpu_to_be32(0xffffffff);
+ vc->spare_refs[3] = cpu_to_be32(0xffffffff);
+ vc->spare_refs[4] = cpu_to_be32(0xffffffff);
+ vc->spare_refs[5] = cpu_to_be32(0xffffffff);
+ vc->spare_refs[6] = cpu_to_be32(0xffffffff);
+ vc->spare_refs[7] = cpu_to_be32(0xffffffff);
memset(vc->cache_pol, 0, 8);
vc->bg_rate = 0x80;
memset(vc->pad2, 0xff, 3);
memset(vc->phys_refnum, 0xff, 4*ddf->mppe);
memset(vc->phys_refnum+ddf->mppe, 0x00, 8*ddf->mppe);
+ for (i = 1; i < vc->sec_elmnt_count; i++) {
+ memcpy(vcl->other_bvds[i-1], vc, ddf->conf_rec_len * 512);
+ vcl->other_bvds[i-1]->sec_elmnt_seq = i;
+ }
+
vcl->next = ddf->conflist;
ddf->conflist = vcl;
ddf->currentconf = vcl;
- ddf->updates_pending = 1;
+ ddf_set_updates_pending(ddf, NULL);
return 1;
}
#ifndef MDASSEMBLE
static void add_to_super_ddf_bvd(struct supertype *st,
- mdu_disk_info_t *dk, int fd, char *devname)
+ mdu_disk_info_t *dk, int fd, char *devname,
+ unsigned long long data_offset)
{
- /* fd and devname identify a device with-in the ddf container (st).
+ /* fd and devname identify a device within the ddf container (st).
* dk identifies a location in the new BVD.
* We need to find suitable free space in that device and update
* the phys_refnum and lba_offset for the newly created vd_config.
struct dl *dl;
struct ddf_super *ddf = st->sb;
struct vd_config *vc;
- __u64 *lba_offset;
- unsigned int working;
unsigned int i;
- unsigned long long blocks, pos, esize;
- struct extent *ex;
+ unsigned long long blocks, pos;
+ unsigned int raid_disk = dk->raid_disk;
if (fd == -1) {
for (dl = ddf->dlist; dl ; dl = dl->next)
dl->minor == dk->minor)
break;
}
- if (!dl || ! (dk->state & (1<<MD_DISK_SYNC)))
+ if (!dl || dl->pdnum < 0 || ! (dk->state & (1<<MD_DISK_SYNC)))
return;
vc = &ddf->currentconf->conf;
- lba_offset = ddf->currentconf->lba_offset;
-
- ex = get_extents(ddf, dl);
- if (!ex)
- return;
+ if (vc->sec_elmnt_count > 1) {
+ unsigned int n = be16_to_cpu(vc->prim_elmnt_count);
+ if (raid_disk >= n)
+ vc = ddf->currentconf->other_bvds[raid_disk / n - 1];
+ raid_disk %= n;
+ }
- i = 0; pos = 0;
- blocks = __be64_to_cpu(vc->blocks);
+ 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)
+ pos = find_space(ddf, dl, data_offset, &blocks);
+ if (pos == INVALID_SECTORS)
return;
ddf->currentdev = dk->raid_disk;
- vc->phys_refnum[dk->raid_disk] = dl->disk.refnum;
- lba_offset[dk->raid_disk] = __cpu_to_be64(pos);
+ vc->phys_refnum[raid_disk] = dl->disk.refnum;
+ LBA_OFFSET(ddf, vc)[raid_disk] = cpu_to_be64(pos);
for (i = 0; i < ddf->max_part ; i++)
if (dl->vlist[i] == NULL)
if (devname)
dl->devname = devname;
- /* Check how many working raid_disks, and if we can mark
- * array as optimal yet
- */
- working = 0;
+ /* Check if we can mark array as optimal yet */
+ i = ddf->currentconf->vcnum;
+ ddf->virt->entries[i].state =
+ (ddf->virt->entries[i].state & ~DDF_state_mask)
+ | get_svd_state(ddf, ddf->currentconf);
+ be16_clear(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Global_Spare));
+ be16_set(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Active_in_VD));
+ dprintf("added disk %d/%08x to VD %d/%s as disk %d\n",
+ dl->pdnum, be32_to_cpu(dl->disk.refnum),
+ ddf->currentconf->vcnum, guid_str(vc->guid),
+ dk->raid_disk);
+ ddf_set_updates_pending(ddf, vc);
+}
- for (i = 0; i < __be16_to_cpu(vc->prim_elmnt_count); i++)
- if (vc->phys_refnum[i] != 0xffffffff)
- working++;
+static unsigned int find_unused_pde(const struct ddf_super *ddf)
+{
+ unsigned int i;
+ for (i = 0; i < be16_to_cpu(ddf->phys->max_pdes); i++) {
+ if (all_ff(ddf->phys->entries[i].guid))
+ return i;
+ }
+ return DDF_NOTFOUND;
+}
- /* Find which virtual_entry */
- 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_state_optimal;
-
- if (vc->prl == DDF_RAID6 &&
- working+1 == __be16_to_cpu(vc->prim_elmnt_count))
- ddf->virt->entries[i].state =
- (ddf->virt->entries[i].state & ~DDF_state_mask)
- | DDF_state_part_optimal;
-
- 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;
+static void _set_config_size(struct phys_disk_entry *pde, const struct dl *dl)
+{
+ __u64 cfs, t;
+ cfs = min(dl->size - 32*1024*2ULL, be64_to_cpu(dl->primary_lba));
+ t = be64_to_cpu(dl->secondary_lba);
+ if (t != ~(__u64)0)
+ cfs = min(cfs, t);
+ /*
+ * Some vendor DDF structures interpret workspace_lba
+ * very differently than we do: Make a sanity check on the value.
+ */
+ t = be64_to_cpu(dl->workspace_lba);
+ if (t < cfs) {
+ __u64 wsp = cfs - t;
+ if (wsp > 1024*1024*2ULL && wsp > dl->size / 16) {
+ pr_err("%x:%x: workspace size 0x%llx too big, ignoring\n",
+ dl->major, dl->minor, (unsigned long long)wsp);
+ } else
+ cfs = t;
+ }
+ pde->config_size = cpu_to_be64(cfs);
+ dprintf("%x:%x config_size %llx, DDF structure is %llx blocks\n",
+ dl->major, dl->minor,
+ (unsigned long long)cfs, (unsigned long long)(dl->size-cfs));
}
-/* add a device to a container, either while creating it or while
+/* Add a device to a container, either while creating it or while
* expanding a pre-existing container
*/
static int add_to_super_ddf(struct supertype *st,
- mdu_disk_info_t *dk, int fd, char *devname)
+ mdu_disk_info_t *dk, int fd, char *devname,
+ unsigned long long data_offset)
{
struct ddf_super *ddf = st->sb;
struct dl *dd;
struct phys_disk_entry *pde;
unsigned int n, i;
struct stat stb;
+ __u32 *tptr;
if (ddf->currentconf) {
- add_to_super_ddf_bvd(st, dk, fd, devname);
+ add_to_super_ddf_bvd(st, dk, fd, devname, data_offset);
return 0;
}
* a phys_disk entry and a more detailed disk_data entry.
*/
fstat(fd, &stb);
+ n = find_unused_pde(ddf);
+ if (n == DDF_NOTFOUND) {
+ pr_err("No free slot in array, cannot add disk\n");
+ return 1;
+ }
+ pde = &ddf->phys->entries[n];
+ get_dev_size(fd, NULL, &size);
+ if (size <= 32*1024*1024) {
+ pr_err("device size must be at least 32MB\n");
+ return 1;
+ }
+ size >>= 9;
+
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__);
+ pr_err("could allocate buffer for new disk, aborting\n");
return 1;
}
dd->major = major(stb.st_rdev);
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) = random32();
- *(__u32*)(dd->disk.guid + 20) = random32();
+ tptr = (__u32 *)(dd->disk.guid + 16);
+ *tptr++ = random32();
+ *tptr = 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);
+ dd->disk.refnum._v32 = random32();
+ for (i = be16_to_cpu(ddf->active->max_pd_entries);
i > 0; i--)
- if (ddf->phys->entries[i-1].refnum == dd->disk.refnum)
+ if (be32_eq(ddf->phys->entries[i-1].refnum,
+ dd->disk.refnum))
break;
} while (i > 0);
for (i = 0; i < ddf->max_part ; i++)
dd->vlist[i] = NULL;
- n = __be16_to_cpu(ddf->phys->used_pdes);
- pde = &ddf->phys->entries[n];
dd->pdnum = n;
if (st->update_tail) {
sizeof(struct phys_disk_entry));
struct phys_disk *pd;
- pd = malloc(len);
+ pd = xmalloc(len);
pd->magic = DDF_PHYS_RECORDS_MAGIC;
- pd->used_pdes = __cpu_to_be16(n);
+ pd->used_pdes = cpu_to_be16(n);
pde = &pd->entries[0];
dd->mdupdate = pd;
- } else {
- n++;
- ddf->phys->used_pdes = __cpu_to_be16(n);
- }
+ } else
+ ddf->phys->used_pdes = cpu_to_be16(
+ 1 + be16_to_cpu(ddf->phys->used_pdes));
memcpy(pde->guid, dd->disk.guid, DDF_GUID_LEN);
pde->refnum = dd->disk.refnum;
- pde->type = __cpu_to_be16(DDF_Forced_PD_GUID | DDF_Global_Spare);
- pde->state = __cpu_to_be16(DDF_Online);
- get_dev_size(fd, NULL, &size);
- /* We are required to reserve 32Meg, and record the size in sectors */
- pde->config_size = __cpu_to_be64( (size - 32*1024*1024) / 512);
+ pde->type = cpu_to_be16(DDF_Forced_PD_GUID | DDF_Global_Spare);
+ pde->state = cpu_to_be16(DDF_Online);
+ dd->size = size;
+ /*
+ * If there is already a device in dlist, try to reserve the same
+ * amount of workspace. Otherwise, use 32MB.
+ * We checked disk size above already.
+ */
+#define __calc_lba(new, old, lba, mb) do { \
+ unsigned long long dif; \
+ if ((old) != NULL) \
+ dif = (old)->size - be64_to_cpu((old)->lba); \
+ else \
+ dif = (new)->size; \
+ if ((new)->size > dif) \
+ (new)->lba = cpu_to_be64((new)->size - dif); \
+ else \
+ (new)->lba = cpu_to_be64((new)->size - (mb*1024*2)); \
+ } while (0)
+ __calc_lba(dd, ddf->dlist, workspace_lba, 32);
+ __calc_lba(dd, ddf->dlist, primary_lba, 16);
+ if (ddf->dlist == NULL ||
+ be64_to_cpu(ddf->dlist->secondary_lba) != ~(__u64)0)
+ __calc_lba(dd, ddf->dlist, secondary_lba, 32);
+ _set_config_size(pde, dd);
+
sprintf(pde->path, "%17.17s","Information: nil") ;
memset(pde->pad, 0xff, 6);
- 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;
+ ddf_set_updates_pending(ddf, NULL);
}
return 0;
}
-/*
+static int remove_from_super_ddf(struct supertype *st, mdu_disk_info_t *dk)
+{
+ struct ddf_super *ddf = st->sb;
+ struct dl *dl;
+
+ /* mdmon has noticed that this disk (dk->major/dk->minor) has
+ * disappeared from the container.
+ * We need to arrange that it disappears from the metadata and
+ * internal data structures too.
+ * Most of the work is done by ddf_process_update which edits
+ * the metadata and closes the file handle and attaches the memory
+ * where free_updates will free it.
+ */
+ for (dl = ddf->dlist; dl ; dl = dl->next)
+ if (dl->major == dk->major &&
+ dl->minor == dk->minor)
+ break;
+ if (!dl || dl->pdnum < 0)
+ return -1;
+
+ if (st->update_tail) {
+ int len = (sizeof(struct phys_disk) +
+ sizeof(struct phys_disk_entry));
+ struct phys_disk *pd;
+
+ pd = xmalloc(len);
+ pd->magic = DDF_PHYS_RECORDS_MAGIC;
+ pd->used_pdes = cpu_to_be16(dl->pdnum);
+ pd->entries[0].state = cpu_to_be16(DDF_Missing);
+ append_metadata_update(st, pd, len);
+ }
+ return 0;
+}
+#endif
+
+/*
* This is the write_init_super method for a ddf container. It is
* called when creating a container or adding another device to a
* container.
*/
-static unsigned char null_conf[4096+512];
+static int __write_ddf_structure(struct dl *d, struct ddf_super *ddf, __u8 type)
+{
+ unsigned long long sector;
+ struct ddf_header *header;
+ int fd, i, n_config, conf_size, buf_size;
+ int ret = 0;
+ char *conf;
+
+ fd = d->fd;
+
+ switch (type) {
+ case DDF_HEADER_PRIMARY:
+ header = &ddf->primary;
+ sector = be64_to_cpu(header->primary_lba);
+ break;
+ case DDF_HEADER_SECONDARY:
+ header = &ddf->secondary;
+ sector = be64_to_cpu(header->secondary_lba);
+ break;
+ default:
+ return 0;
+ }
+ if (sector == ~(__u64)0)
+ return 0;
+
+ header->type = type;
+ header->openflag = 1;
+ header->crc = calc_crc(header, 512);
+
+ lseek64(fd, sector<<9, 0);
+ if (write(fd, header, 512) < 0)
+ goto out;
+
+ ddf->controller.crc = calc_crc(&ddf->controller, 512);
+ if (write(fd, &ddf->controller, 512) < 0)
+ goto out;
+
+ ddf->phys->crc = calc_crc(ddf->phys, ddf->pdsize);
+ if (write(fd, ddf->phys, ddf->pdsize) < 0)
+ goto out;
+ ddf->virt->crc = calc_crc(ddf->virt, ddf->vdsize);
+ if (write(fd, ddf->virt, ddf->vdsize) < 0)
+ goto out;
+
+ /* Now write lots of config records. */
+ n_config = ddf->max_part;
+ conf_size = ddf->conf_rec_len * 512;
+ conf = ddf->conf;
+ buf_size = conf_size * (n_config + 1);
+ if (!conf) {
+ if (posix_memalign((void**)&conf, 512, buf_size) != 0)
+ goto out;
+ ddf->conf = conf;
+ }
+ for (i = 0 ; i <= n_config ; i++) {
+ struct vcl *c;
+ struct vd_config *vdc = NULL;
+ if (i == n_config) {
+ c = (struct vcl *)d->spare;
+ if (c)
+ vdc = &c->conf;
+ } else {
+ unsigned int dummy;
+ c = d->vlist[i];
+ if (c)
+ get_pd_index_from_refnum(
+ c, d->disk.refnum,
+ ddf->mppe,
+ (const struct vd_config **)&vdc,
+ &dummy);
+ }
+ if (vdc) {
+ dprintf("writing conf record %i on disk %08x for %s/%u\n",
+ i, be32_to_cpu(d->disk.refnum),
+ guid_str(vdc->guid),
+ vdc->sec_elmnt_seq);
+ vdc->crc = calc_crc(vdc, conf_size);
+ memcpy(conf + i*conf_size, vdc, conf_size);
+ } else
+ memset(conf + i*conf_size, 0xff, conf_size);
+ }
+ if (write(fd, conf, buf_size) != buf_size)
+ goto out;
+
+ d->disk.crc = calc_crc(&d->disk, 512);
+ if (write(fd, &d->disk, 512) < 0)
+ goto out;
+
+ ret = 1;
+out:
+ header->openflag = 0;
+ header->crc = calc_crc(header, 512);
+
+ lseek64(fd, sector<<9, 0);
+ if (write(fd, header, 512) < 0)
+ ret = 0;
-static int __write_init_super_ddf(struct supertype *st, int do_close)
+ return ret;
+}
+
+static int _write_super_to_disk(struct ddf_super *ddf, struct dl *d)
{
+ unsigned long long size;
+ int fd = d->fd;
+ if (fd < 0)
+ return 0;
+
+ /* We need to fill in the primary, (secondary) and workspace
+ * lba's in the headers, set their checksums,
+ * Also checksum phys, virt....
+ *
+ * Then write everything out, finally the anchor is written.
+ */
+ get_dev_size(fd, NULL, &size);
+ size /= 512;
+ memcpy(&ddf->anchor, ddf->active, 512);
+ if (be64_to_cpu(d->workspace_lba) != 0ULL)
+ ddf->anchor.workspace_lba = d->workspace_lba;
+ else
+ ddf->anchor.workspace_lba =
+ cpu_to_be64(size - 32*1024*2);
+ if (be64_to_cpu(d->primary_lba) != 0ULL)
+ ddf->anchor.primary_lba = d->primary_lba;
+ else
+ ddf->anchor.primary_lba =
+ cpu_to_be64(size - 16*1024*2);
+ if (be64_to_cpu(d->secondary_lba) != 0ULL)
+ ddf->anchor.secondary_lba = d->secondary_lba;
+ else
+ ddf->anchor.secondary_lba =
+ cpu_to_be64(size - 32*1024*2);
+ ddf->anchor.timestamp = cpu_to_be32(time(0) - DECADE);
+ memcpy(&ddf->primary, &ddf->anchor, 512);
+ memcpy(&ddf->secondary, &ddf->anchor, 512);
+
+ ddf->anchor.type = DDF_HEADER_ANCHOR;
+ ddf->anchor.openflag = 0xFF; /* 'open' means nothing */
+ ddf->anchor.seq = cpu_to_be32(0xFFFFFFFF); /* no sequencing in anchor */
+ ddf->anchor.crc = calc_crc(&ddf->anchor, 512);
+
+ if (!__write_ddf_structure(d, ddf, DDF_HEADER_PRIMARY))
+ return 0;
+
+ if (!__write_ddf_structure(d, ddf, DDF_HEADER_SECONDARY))
+ return 0;
+
+ lseek64(fd, (size-1)*512, SEEK_SET);
+ if (write(fd, &ddf->anchor, 512) < 0)
+ return 0;
+
+ return 1;
+}
+#ifndef MDASSEMBLE
+static int __write_init_super_ddf(struct supertype *st)
+{
struct ddf_super *ddf = st->sb;
- int i;
struct dl *d;
- int n_config;
- int conf_size;
int attempts = 0;
int successes = 0;
- unsigned long long size, sector;
+
+ pr_state(ddf, __func__);
/* 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....
- *
- * Then write everything out, finally the anchor is written.
- */
- get_dev_size(fd, NULL, &size);
- size /= 512;
- ddf->anchor.workspace_lba = __cpu_to_be64(size - 32*1024*2);
- ddf->anchor.primary_lba = __cpu_to_be64(size - 16*1024*2);
- ddf->anchor.seq = __cpu_to_be32(1);
- memcpy(&ddf->primary, &ddf->anchor, 512);
- memcpy(&ddf->secondary, &ddf->anchor, 512);
-
- ddf->anchor.openflag = 0xFF; /* 'open' means nothing */
- ddf->anchor.seq = 0xFFFFFFFF; /* no sequencing in anchor */
- ddf->anchor.crc = calc_crc(&ddf->anchor, 512);
-
- ddf->primary.openflag = 0;
- ddf->primary.type = DDF_HEADER_PRIMARY;
-
- ddf->secondary.openflag = 0;
- ddf->secondary.type = DDF_HEADER_SECONDARY;
-
- ddf->primary.crc = calc_crc(&ddf->primary, 512);
- ddf->secondary.crc = calc_crc(&ddf->secondary, 512);
-
- sector = size - 16*1024*2;
- lseek64(fd, sector<<9, 0);
- if (write(fd, &ddf->primary, 512) < 0)
- continue;
-
- ddf->controller.crc = calc_crc(&ddf->controller, 512);
- if (write(fd, &ddf->controller, 512) < 0)
- continue;
-
- ddf->phys->crc = calc_crc(ddf->phys, ddf->pdsize);
-
- if (write(fd, ddf->phys, ddf->pdsize) < 0)
- continue;
-
- ddf->virt->crc = calc_crc(ddf->virt, ddf->vdsize);
- if (write(fd, ddf->virt, ddf->vdsize) < 0)
- continue;
-
- /* Now write lots of config records. */
- n_config = ddf->max_part;
- conf_size = ddf->conf_rec_len * 512;
- for (i = 0 ; i <= n_config ; i++) {
- struct vcl *c = d->vlist[i];
- if (i == n_config)
- c = (struct vcl*)d->spare;
-
- if (c) {
- c->conf.crc = calc_crc(&c->conf, conf_size);
- if (write(fd, &c->conf, conf_size) < 0)
- break;
- } else {
- char *null_aligned = (char*)((((unsigned long)null_conf)+511)&~511UL);
- if (null_conf[0] != 0xff)
- memset(null_conf, 0xff, sizeof(null_conf));
- unsigned 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);
- if (write(fd, &d->disk, 512) < 0)
- continue;
-
- /* Maybe do the same for secondary */
-
- lseek64(fd, (size-1)*512, SEEK_SET);
- if (write(fd, &ddf->anchor, 512) < 0)
- continue;
- successes++;
+ successes += _write_super_to_disk(ddf, d);
}
- if (do_close)
- for (d = ddf->dlist; d; d=d->next) {
- close(d->fd);
- d->fd = -1;
- }
-
return attempts != successes;
}
struct ddf_super *ddf = st->sb;
struct vcl *currentconf = ddf->currentconf;
- /* we are done with currentconf reset it to point st at the container */
+ /* We are done with currentconf - reset it so st refers to the container */
ddf->currentconf = NULL;
if (st->update_tail) {
/* queue the virtual_disk and vd_config as metadata updates */
struct virtual_disk *vd;
struct vd_config *vc;
- int len;
+ int len, tlen;
+ unsigned int i;
if (!currentconf) {
+ /* Must be adding a physical disk to the container */
int len = (sizeof(struct phys_disk) +
sizeof(struct phys_disk_entry));
/* First the virtual disk. We have a slightly fake header */
len = sizeof(struct virtual_disk) + sizeof(struct virtual_entry);
- vd = malloc(len);
+ vd = xmalloc(len);
*vd = *ddf->virt;
vd->entries[0] = ddf->virt->entries[currentconf->vcnum];
- vd->populated_vdes = __cpu_to_be16(currentconf->vcnum);
+ vd->populated_vdes = cpu_to_be16(currentconf->vcnum);
append_metadata_update(st, vd, len);
/* Then the vd_config */
len = ddf->conf_rec_len * 512;
- vc = malloc(len);
+ tlen = len * currentconf->conf.sec_elmnt_count;
+ vc = xmalloc(tlen);
memcpy(vc, ¤tconf->conf, len);
- append_metadata_update(st, vc, len);
+ for (i = 1; i < currentconf->conf.sec_elmnt_count; i++)
+ memcpy((char *)vc + i*len, currentconf->other_bvds[i-1],
+ len);
+ append_metadata_update(st, vc, tlen);
- /* FIXME I need to close the fds! */
return 0;
- } else {
+ } else {
struct dl *d;
- for (d = ddf->dlist; d; d=d->next)
- while (Kill(d->devname, NULL, 0, 1, 1) == 0);
- return __write_init_super_ddf(st, 1);
+ if (!currentconf)
+ for (d = ddf->dlist; d; d=d->next)
+ while (Kill(d->devname, NULL, 0, -1, 1) == 0);
+ /* Note: we don't close the fd's now, but a subsequent
+ * ->free_super() will
+ */
+ return __write_init_super_ddf(st);
}
}
#endif
-static __u64 avail_size_ddf(struct supertype *st, __u64 devsize)
+static __u64 avail_size_ddf(struct supertype *st, __u64 devsize,
+ unsigned long long data_offset)
{
/* We must reserve the last 32Meg */
if (devsize <= 32*1024*2)
static int reserve_space(struct supertype *st, int raiddisks,
unsigned long long size, int chunk,
+ unsigned long long data_offset,
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.
+ * them. If size==0, find the largest size possible.
+ * Report available size in *freesize
+ * If space 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->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;
+ unsigned long long minsize = ULLONG_MAX;
- 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) {
+ find_space(ddf, dl, data_offset, &minsize);
+ if (minsize >= size && minsize >= (unsigned)chunk) {
cnt++;
dl->esize = minsize;
}
- free(e);
}
if (cnt < raiddisks) {
- fprintf(stderr, Name ": not enough devices with space to create array.\n");
+ pr_err("not enough devices with space to create array.\n");
return 0; /* No enough free spaces large enough */
}
if (size == 0) {
continue;
/* This is bigger than 'size', see if there are enough */
cnt = 0;
- for (dl2 = dl; dl2 ; dl2=dl2->next)
+ for (dl2 = ddf->dlist; dl2 ; dl2=dl2->next)
if (dl2->esize >= dl->esize)
cnt++;
if (cnt >= raiddisks)
}
*freesize = size;
if (size < 32) {
- fprintf(stderr, Name ": not enough spare devices to create array.\n");
+ pr_err("not enough spare devices to create array.\n");
return 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,
+ int *chunk, unsigned long long size,
+ unsigned long long data_offset,
char *dev, unsigned long long *freesize,
int verbose)
{
* If given BVDs, we make an SVD, changing all the GUIDs in the process.
*/
+ if (*chunk == UnSet)
+ *chunk = DEFAULT_CHUNK;
+
+ if (level == LEVEL_NONE)
+ level = LEVEL_CONTAINER;
if (level == LEVEL_CONTAINER) {
/* Must be a fresh device to add to a container */
return validate_geometry_ddf_container(st, level, layout,
- raiddisks, chunk,
- size, dev, freesize,
+ raiddisks, *chunk,
+ size, data_offset, dev,
+ freesize,
verbose);
}
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) {
+ mdu_array_info_t array = {
+ .level = level,
+ .layout = layout,
+ .raid_disks = raiddisks
+ };
+ struct vd_config conf;
+ if (layout_md2ddf(&array, &conf) == -1) {
if (verbose)
- fprintf(stderr, Name ": DDF does not support level %d arrays\n",
- level);
+ pr_err("DDF does not support level %d /layout %d arrays with %d disks\n",
+ level, layout, raiddisks);
return 0;
}
/* Should check layout? etc */
* chosen so that add_to_super/getinfo_super
* can return them.
*/
- return reserve_space(st, raiddisks, size, chunk, freesize);
+ return reserve_space(st, raiddisks, size, *chunk,
+ data_offset, freesize);
}
return 1;
}
* Should make a distinction one day.
*/
return validate_geometry_ddf_bvd(st, level, layout, raiddisks,
- chunk, size, dev, freesize,
+ chunk, size, data_offset, dev,
+ freesize,
verbose);
}
/* This is the first device for the array.
*/
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") == 0) {
-
- /* load super */
- /* find space for 'n' devices. */
- /* remember the devices */
- /* Somehow return the fact that we have enough */
- }
-
+ /* Just a bare device, no good to us */
if (verbose)
- fprintf(stderr,
- Name ": ddf: Cannot create this array "
- "on device %s - a container is required.\n",
- dev);
+ pr_err("ddf: Cannot create this array on device %s - a container is required.\n",
+ dev);
return 0;
}
if (errno != EBUSY || (fd = open(dev, O_RDONLY, 0)) < 0) {
if (verbose)
- fprintf(stderr, Name ": ddf: Cannot open %s: %s\n",
- dev, strerror(errno));
+ pr_err("ddf: Cannot open %s: %s\n",
+ dev, strerror(errno));
return 0;
}
/* Well, it is in use by someone, maybe a 'ddf' container. */
if (cfd < 0) {
close(fd);
if (verbose)
- fprintf(stderr, Name ": ddf: Cannot use %s: %s\n",
- dev, strerror(EBUSY));
+ pr_err("ddf: Cannot use %s: %s\n",
+ dev, strerror(EBUSY));
return 0;
}
- sra = sysfs_read(cfd, 0, GET_VERSION);
+ sra = sysfs_read(cfd, NULL, GET_VERSION);
close(fd);
if (sra && sra->array.major_version == -1 &&
strcmp(sra->text_version, "ddf") == 0) {
* and try to create a bvd
*/
struct ddf_super *ddf;
- if (load_super_ddf_all(st, cfd, (void **)&ddf, NULL, 1) == 0) {
+ if (load_super_ddf_all(st, cfd, (void **)&ddf, NULL) == 0) {
st->sb = ddf;
- st->container_dev = fd2devnum(cfd);
+ strcpy(st->container_devnm, fd2devnm(cfd));
close(cfd);
return validate_geometry_ddf_bvd(st, level, layout,
raiddisks, chunk, size,
+ data_offset,
dev, freesize,
verbose);
}
validate_geometry_ddf_container(struct supertype *st,
int level, int layout, int raiddisks,
int chunk, unsigned long long size,
+ unsigned long long data_offset,
char *dev, unsigned long long *freesize,
int verbose)
{
fd = open(dev, O_RDONLY|O_EXCL, 0);
if (fd < 0) {
if (verbose)
- fprintf(stderr, Name ": ddf: Cannot open %s: %s\n",
- dev, strerror(errno));
+ pr_err("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);
+ *freesize = avail_size_ddf(st, ldsize >> 9, INVALID_SECTORS);
if (*freesize == 0)
return 0;
static int validate_geometry_ddf_bvd(struct supertype *st,
int level, int layout, int raiddisks,
- int chunk, unsigned long long size,
+ int *chunk, unsigned long long size,
+ unsigned long long data_offset,
char *dev, unsigned long long *freesize,
int verbose)
{
struct stat stb;
struct ddf_super *ddf = st->sb;
struct dl *dl;
- unsigned long long pos = 0;
unsigned long long maxsize;
- struct extent *e;
- int i;
/* ddf/bvd supports lots of things, but not containers */
if (level == LEVEL_CONTAINER) {
if (verbose)
- fprintf(stderr, Name ": DDF cannot create a container within an container\n");
+ pr_err("DDF cannot create a container within an container\n");
return 0;
}
/* We must have the container info already read in. */
int dcnt = 0;
if (minsize == 0)
minsize = 8;
- for (dl = ddf->dlist; dl ; dl = dl->next)
- {
- int found = 0;
- pos = 0;
-
- i = 0;
- e = get_extents(ddf, dl);
- if (!e) continue;
- do {
- unsigned long long esize;
- esize = e[i].start - pos;
- if (esize >= minsize)
- found = 1;
- pos = e[i].start + e[i].size;
- i++;
- } while (e[i-1].size);
- if (found)
+ for (dl = ddf->dlist; dl ; dl = dl->next) {
+ if (find_space(ddf, dl, data_offset, &minsize)
+ != INVALID_SECTORS)
dcnt++;
- free(e);
}
if (dcnt < raiddisks) {
if (verbose)
- fprintf(stderr,
- Name ": ddf: Not enough devices with "
- "space for this array (%d < %d)\n",
- dcnt, raiddisks);
+ pr_err("ddf: Not enough devices with space for this array (%d < %d)\n",
+ dcnt, raiddisks);
return 0;
}
return 1;
}
if (!dl) {
if (verbose)
- fprintf(stderr, Name ": ddf: %s is not in the "
- "same DDF set\n",
- dev);
+ pr_err("ddf: %s is not in the same DDF set\n",
+ dev);
return 0;
}
- e = get_extents(ddf, dl);
- maxsize = 0;
- i = 0;
- if (e) do {
- unsigned long long esize;
- esize = e[i].start - pos;
- if (esize >= maxsize)
- maxsize = esize;
- pos = e[i].start + e[i].size;
- i++;
- } while (e[i-1].size);
+ maxsize = ULLONG_MAX;
+ find_space(ddf, dl, data_offset, &maxsize);
*freesize = maxsize;
- // FIXME here I am
return 1;
}
static int load_super_ddf_all(struct supertype *st, int fd,
- void **sbp, char *devname, int keep_fd)
+ void **sbp, char *devname)
{
struct mdinfo *sra;
struct ddf_super *super;
rv = load_ddf_headers(dfd, super, NULL);
close(dfd);
if (rv == 0) {
- seq = __be32_to_cpu(super->active->seq);
+ seq = be32_to_cpu(super->active->seq);
if (super->active->openflag)
seq--;
if (!best || seq > bestseq) {
int rv;
sprintf(nm, "%d:%d", sd->disk.major, sd->disk.minor);
- dfd = dev_open(nm, keep_fd? O_RDWR : O_RDONLY);
+ dfd = dev_open(nm, O_RDWR);
if (dfd < 0)
return 2;
rv = load_ddf_headers(dfd, super, NULL);
if (rv == 0)
- rv = load_ddf_local(dfd, super, NULL, keep_fd);
- if (!keep_fd) close(dfd);
+ rv = load_ddf_local(dfd, super, NULL, 1);
if (rv)
return 1;
}
- if (st->subarray[0]) {
- unsigned long val;
- struct vcl *v;
- char *ep;
-
- val = strtoul(st->subarray, &ep, 10);
- if (*ep != '\0') {
- free(super);
- return 1;
- }
-
- for (v = super->conflist; v; v = v->next)
- if (v->vcnum == val)
- super->currentconf = v;
- if (!super->currentconf) {
- free(super);
- return 1;
- }
- }
*sbp = super;
if (st->ss == NULL) {
st->ss = &super_ddf;
st->minor_version = 0;
st->max_devs = 512;
- st->container_dev = fd2devnum(fd);
}
- st->loaded_container = 1;
+ strcpy(st->container_devnm, fd2devnm(fd));
return 0;
}
+
+static int load_container_ddf(struct supertype *st, int fd,
+ char *devname)
+{
+ return load_super_ddf_all(st, fd, &st->sb, devname);
+}
+
#endif /* MDASSEMBLE */
-static struct mdinfo *container_content_ddf(struct supertype *st)
+static int check_secondary(const struct vcl *vc)
+{
+ const struct vd_config *conf = &vc->conf;
+ int i;
+
+ /* The only DDF secondary RAID level md can support is
+ * RAID 10, if the stripe sizes and Basic volume sizes
+ * are all equal.
+ * Other configurations could in theory be supported by exposing
+ * the BVDs to user space and using device mapper for the secondary
+ * mapping. So far we don't support that.
+ */
+
+ __u64 sec_elements[4] = {0, 0, 0, 0};
+#define __set_sec_seen(n) (sec_elements[(n)>>6] |= (1<<((n)&63)))
+#define __was_sec_seen(n) ((sec_elements[(n)>>6] & (1<<((n)&63))) != 0)
+
+ if (vc->other_bvds == NULL) {
+ pr_err("No BVDs for secondary RAID found\n");
+ return -1;
+ }
+ if (conf->prl != DDF_RAID1) {
+ pr_err("Secondary RAID level only supported for mirrored BVD\n");
+ return -1;
+ }
+ if (conf->srl != DDF_2STRIPED && conf->srl != DDF_2SPANNED) {
+ pr_err("Secondary RAID level %d is unsupported\n",
+ conf->srl);
+ return -1;
+ }
+ __set_sec_seen(conf->sec_elmnt_seq);
+ for (i = 0; i < conf->sec_elmnt_count-1; i++) {
+ const struct vd_config *bvd = vc->other_bvds[i];
+ if (bvd->sec_elmnt_seq == DDF_UNUSED_BVD)
+ continue;
+ if (bvd->srl != conf->srl) {
+ pr_err("Inconsistent secondary RAID level across BVDs\n");
+ return -1;
+ }
+ if (bvd->prl != conf->prl) {
+ pr_err("Different RAID levels for BVDs are unsupported\n");
+ return -1;
+ }
+ if (!be16_eq(bvd->prim_elmnt_count, conf->prim_elmnt_count)) {
+ pr_err("All BVDs must have the same number of primary elements\n");
+ return -1;
+ }
+ if (bvd->chunk_shift != conf->chunk_shift) {
+ pr_err("Different strip sizes for BVDs are unsupported\n");
+ return -1;
+ }
+ if (!be64_eq(bvd->array_blocks, conf->array_blocks)) {
+ pr_err("Different BVD sizes are unsupported\n");
+ return -1;
+ }
+ __set_sec_seen(bvd->sec_elmnt_seq);
+ }
+ for (i = 0; i < conf->sec_elmnt_count; i++) {
+ if (!__was_sec_seen(i)) {
+ /* pr_err("BVD %d is missing\n", i); */
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static unsigned int get_pd_index_from_refnum(const struct vcl *vc,
+ be32 refnum, unsigned int nmax,
+ const struct vd_config **bvd,
+ unsigned int *idx)
+{
+ unsigned int i, j, n, sec, cnt;
+
+ cnt = be16_to_cpu(vc->conf.prim_elmnt_count);
+ sec = (vc->conf.sec_elmnt_count == 1 ? 0 : vc->conf.sec_elmnt_seq);
+
+ for (i = 0, j = 0 ; i < nmax ; i++) {
+ /* j counts valid entries for this BVD */
+ if (be32_eq(vc->conf.phys_refnum[i], refnum)) {
+ *bvd = &vc->conf;
+ *idx = i;
+ return sec * cnt + j;
+ }
+ if (be32_to_cpu(vc->conf.phys_refnum[i]) != 0xffffffff)
+ j++;
+ }
+ if (vc->other_bvds == NULL)
+ goto bad;
+
+ for (n = 1; n < vc->conf.sec_elmnt_count; n++) {
+ struct vd_config *vd = vc->other_bvds[n-1];
+ sec = vd->sec_elmnt_seq;
+ if (sec == DDF_UNUSED_BVD)
+ continue;
+ for (i = 0, j = 0 ; i < nmax ; i++) {
+ if (be32_eq(vd->phys_refnum[i], refnum)) {
+ *bvd = vd;
+ *idx = i;
+ return sec * cnt + j;
+ }
+ if (be32_to_cpu(vd->phys_refnum[i]) != 0xffffffff)
+ j++;
+ }
+ }
+bad:
+ *bvd = NULL;
+ return DDF_NOTFOUND;
+}
+
+static struct mdinfo *container_content_ddf(struct supertype *st, char *subarray)
{
/* Given a container loaded by load_super_ddf_all,
* extract information about all the arrays into
struct mdinfo *rest = NULL;
struct vcl *vc;
- for (vc = ddf->conflist ; vc ; vc=vc->next)
- {
+ for (vc = ddf->conflist ; vc ; vc=vc->next) {
unsigned int i;
- unsigned int j;
struct mdinfo *this;
- this = malloc(sizeof(*this));
- memset(this, 0, sizeof(*this));
+ char *ep;
+ __u32 *cptr;
+ unsigned int pd;
+
+ if (subarray &&
+ (strtoul(subarray, &ep, 10) != vc->vcnum ||
+ *ep != '\0'))
+ continue;
+
+ if (vc->conf.sec_elmnt_count > 1) {
+ if (check_secondary(vc) != 0)
+ continue;
+ }
+
+ this = xcalloc(1, sizeof(*this));
this->next = rest;
rest = this;
- 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);
+ if (layout_ddf2md(&vc->conf, &this->array))
+ continue;
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->safe_mode_delay = DDF_SAFE_MODE_DELAY;
+ cptr = (__u32 *)(vc->conf.guid + 16);
+ this->array.ctime = DECADE + __be32_to_cpu(*cptr);
this->array.utime = DECADE +
- __be32_to_cpu(vc->conf.timestamp);
+ be32_to_cpu(vc->conf.timestamp);
this->array.chunk_size = 512 << vc->conf.chunk_shift;
i = vc->vcnum;
this->array.state = 1;
this->resync_start = MaxSector;
}
- 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;
-
+ _ddf_array_name(this->name, ddf, i);
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;
+ 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;
+ if (!subarray)
+ ddf->currentconf = NULL;
sprintf(this->text_version, "/%s/%d",
- devnum2devname(st->container_dev),
- this->container_member);
+ st->container_devnm, this->container_member);
- for (i = 0 ; i < ddf->mppe ; i++) {
+ for (pd = 0; pd < be16_to_cpu(ddf->phys->max_pdes); pd++) {
struct mdinfo *dev;
struct dl *d;
+ const struct vd_config *bvd;
+ unsigned int iphys;
int stt;
- if (vc->conf.phys_refnum[i] == 0xFFFFFFFF)
+ if (be32_to_cpu(ddf->phys->entries[pd].refnum)
+ == 0xFFFFFFFF)
continue;
- for (d = ddf->dlist; d ; d=d->next)
- if (d->disk.refnum == vc->conf.phys_refnum[i])
- break;
- if (d == NULL)
- /* Haven't found that one yet, maybe there are others */
- continue;
- stt = __be16_to_cpu(ddf->phys->entries[d->pdnum].state);
+ stt = be16_to_cpu(ddf->phys->entries[pd].state);
if ((stt & (DDF_Online|DDF_Failed|DDF_Rebuilding))
!= DDF_Online)
continue;
+ i = get_pd_index_from_refnum(
+ vc, ddf->phys->entries[pd].refnum,
+ ddf->mppe, &bvd, &iphys);
+ if (i == DDF_NOTFOUND)
+ continue;
+
this->array.working_disks++;
- dev = malloc(sizeof(*dev));
- memset(dev, 0, sizeof(*dev));
- dev->next = this->devs;
- this->devs = dev;
+ for (d = ddf->dlist; d ; d=d->next)
+ if (be32_eq(d->disk.refnum,
+ ddf->phys->entries[pd].refnum))
+ break;
+ if (d == NULL)
+ /* Haven't found that one yet, maybe there are others */
+ continue;
+
+ dev = xcalloc(1, sizeof(*dev));
+ dev->next = this->devs;
+ this->devs = dev;
- dev->disk.number = __be32_to_cpu(d->disk.refnum);
- dev->disk.major = d->major;
- dev->disk.minor = d->minor;
+ dev->disk.number = be32_to_cpu(d->disk.refnum);
+ dev->disk.major = d->major;
+ dev->disk.minor = d->minor;
dev->disk.raid_disk = i;
- dev->disk.state = (1<<MD_DISK_SYNC)|(1<<MD_DISK_ACTIVE);
+ dev->disk.state = (1<<MD_DISK_SYNC)|(1<<MD_DISK_ACTIVE);
dev->recovery_start = MaxSector;
- 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);
+ dev->events = be32_to_cpu(ddf->active->seq);
+ dev->data_offset =
+ be64_to_cpu(LBA_OFFSET(ddf, bvd)[iphys]);
+ dev->component_size = be64_to_cpu(bvd->blocks);
if (d->devname)
strcpy(dev->name, d->devname);
}
if (!ddf)
return 1;
- /* ->dlist and ->conflist will be set for updates, currently not
- * supported
- */
- if (ddf->dlist || ddf->conflist)
- return 1;
-
if (!get_dev_size(fd, NULL, &dsize))
return 1;
+ if (ddf->dlist || ddf->conflist) {
+ struct stat sta;
+ struct dl *dl;
+ int ofd, ret;
+
+ if (fstat(fd, &sta) == -1 || !S_ISBLK(sta.st_mode)) {
+ pr_err("file descriptor for invalid device\n");
+ return 1;
+ }
+ for (dl = ddf->dlist; dl; dl = dl->next)
+ if (dl->major == (int)major(sta.st_rdev) &&
+ dl->minor == (int)minor(sta.st_rdev))
+ break;
+ if (!dl) {
+ pr_err("couldn't find disk %d/%d\n",
+ (int)major(sta.st_rdev),
+ (int)minor(sta.st_rdev));
+ return 1;
+ }
+ ofd = dl->fd;
+ dl->fd = fd;
+ ret = (_write_super_to_disk(ddf, dl) != 1);
+ dl->fd = ofd;
+ return ret;
+ }
+
if (posix_memalign(&buf, 512, 512) != 0)
return 1;
memset(buf, 0, 512);
/*
* return:
* 0 same, or first was empty, and second was copied
- * 1 second had wrong number
+ * 1 second had wrong magic number - but that isn't possible
* 2 wrong uuid
* 3 wrong other info
*/
struct ddf_super *first = st->sb;
struct ddf_super *second = tst->sb;
+ struct dl *dl1, *dl2;
+ struct vcl *vl1, *vl2;
+ unsigned int max_vds, max_pds, pd, vd;
if (!first) {
st->sb = tst->sb;
if (memcmp(first->anchor.guid, second->anchor.guid, DDF_GUID_LEN) != 0)
return 2;
- /* FIXME should I look at anything else? */
+ /* It is only OK to compare info in the anchor. Anything else
+ * could be changing due to a reconfig so must be ignored.
+ * guid really should be enough anyway.
+ */
+
+ if (!be32_eq(first->active->seq, second->active->seq)) {
+ dprintf("sequence number mismatch %u<->%u\n",
+ be32_to_cpu(first->active->seq),
+ be32_to_cpu(second->active->seq));
+ return 0;
+ }
+
+ /*
+ * At this point we are fairly sure that the meta data matches.
+ * But the new disk may contain additional local data.
+ * Add it to the super block.
+ */
+ max_vds = be16_to_cpu(first->active->max_vd_entries);
+ max_pds = be16_to_cpu(first->phys->max_pdes);
+ for (vl2 = second->conflist; vl2; vl2 = vl2->next) {
+ for (vl1 = first->conflist; vl1; vl1 = vl1->next)
+ if (!memcmp(vl1->conf.guid, vl2->conf.guid,
+ DDF_GUID_LEN))
+ break;
+ if (vl1) {
+ if (vl1->other_bvds != NULL &&
+ vl1->conf.sec_elmnt_seq !=
+ vl2->conf.sec_elmnt_seq) {
+ dprintf("adding BVD %u\n",
+ vl2->conf.sec_elmnt_seq);
+ add_other_bvd(vl1, &vl2->conf,
+ first->conf_rec_len*512);
+ }
+ continue;
+ }
+
+ if (posix_memalign((void **)&vl1, 512,
+ (first->conf_rec_len*512 +
+ offsetof(struct vcl, conf))) != 0) {
+ pr_err("could not allocate vcl buf\n");
+ return 3;
+ }
+
+ vl1->next = first->conflist;
+ vl1->block_sizes = NULL;
+ memcpy(&vl1->conf, &vl2->conf, first->conf_rec_len*512);
+ if (alloc_other_bvds(first, vl1) != 0) {
+ pr_err("could not allocate other bvds\n");
+ free(vl1);
+ return 3;
+ }
+ for (vd = 0; vd < max_vds; vd++)
+ if (!memcmp(first->virt->entries[vd].guid,
+ vl1->conf.guid, DDF_GUID_LEN))
+ break;
+ vl1->vcnum = vd;
+ dprintf("added config for VD %u\n", vl1->vcnum);
+ first->conflist = vl1;
+ }
+
+ for (dl2 = second->dlist; dl2; dl2 = dl2->next) {
+ for (dl1 = first->dlist; dl1; dl1 = dl1->next)
+ if (be32_eq(dl1->disk.refnum, dl2->disk.refnum))
+ break;
+ if (dl1)
+ continue;
+
+ if (posix_memalign((void **)&dl1, 512,
+ sizeof(*dl1) + (first->max_part) * sizeof(dl1->vlist[0]))
+ != 0) {
+ pr_err("could not allocate disk info buffer\n");
+ return 3;
+ }
+ memcpy(dl1, dl2, sizeof(*dl1));
+ dl1->mdupdate = NULL;
+ dl1->next = first->dlist;
+ dl1->fd = -1;
+ for (pd = 0; pd < max_pds; pd++)
+ if (be32_eq(first->phys->entries[pd].refnum,
+ dl1->disk.refnum))
+ break;
+ dl1->pdnum = pd < max_pds ? (int)pd : -1;
+ if (dl2->spare) {
+ if (posix_memalign((void **)&dl1->spare, 512,
+ first->conf_rec_len*512) != 0) {
+ pr_err("could not allocate spare info buf\n");
+ return 3;
+ }
+ memcpy(dl1->spare, dl2->spare, first->conf_rec_len*512);
+ }
+ for (vd = 0 ; vd < first->max_part ; vd++) {
+ if (!dl2->vlist[vd]) {
+ dl1->vlist[vd] = NULL;
+ continue;
+ }
+ for (vl1 = first->conflist; vl1; vl1 = vl1->next) {
+ if (!memcmp(vl1->conf.guid,
+ dl2->vlist[vd]->conf.guid,
+ DDF_GUID_LEN))
+ break;
+ dl1->vlist[vd] = vl1;
+ }
+ }
+ first->dlist = dl1;
+ dprintf("added disk %d: %08x\n", dl1->pdnum,
+ be32_to_cpu(dl1->disk.refnum));
+ }
+
return 0;
}
*/
static int ddf_open_new(struct supertype *c, struct active_array *a, char *inst)
{
- dprintf("ddf: open_new %s\n", inst);
- a->info.container_member = atoi(inst);
- return 0;
-}
+ struct ddf_super *ddf = c->sb;
+ int n = atoi(inst);
+ struct mdinfo *dev;
+ struct dl *dl;
+ static const char faulty[] = "faulty";
+
+ if (all_ff(ddf->virt->entries[n].guid)) {
+ pr_err("subarray %d doesn't exist\n", n);
+ return -ENODEV;
+ }
+ dprintf("new subarray %d, GUID: %s\n", n,
+ guid_str(ddf->virt->entries[n].guid));
+ for (dev = a->info.devs; dev; dev = dev->next) {
+ for (dl = ddf->dlist; dl; dl = dl->next)
+ if (dl->major == dev->disk.major &&
+ dl->minor == dev->disk.minor)
+ break;
+ if (!dl || dl->pdnum < 0) {
+ pr_err("device %d/%d of subarray %d not found in meta data\n",
+ dev->disk.major, dev->disk.minor, n);
+ return -1;
+ }
+ if ((be16_to_cpu(ddf->phys->entries[dl->pdnum].state) &
+ (DDF_Online|DDF_Missing|DDF_Failed)) != DDF_Online) {
+ pr_err("new subarray %d contains broken device %d/%d (%02x)\n",
+ n, dl->major, dl->minor,
+ be16_to_cpu(ddf->phys->entries[dl->pdnum].state));
+ if (write(dev->state_fd, faulty, sizeof(faulty)-1) !=
+ sizeof(faulty) - 1)
+ pr_err("Write to state_fd failed\n");
+ dev->curr_state = DS_FAULTY;
+ }
+ }
+ a->info.container_member = n;
+ return 0;
+}
+
+static void handle_missing(struct ddf_super *ddf, struct active_array *a, int inst)
+{
+ /* This member array is being activated. If any devices
+ * are missing they must now be marked as failed.
+ */
+ struct vd_config *vc;
+ unsigned int n_bvd;
+ struct vcl *vcl;
+ struct dl *dl;
+ int pd;
+ int n;
+ int state;
+
+ for (n = 0; ; n++) {
+ vc = find_vdcr(ddf, inst, n, &n_bvd, &vcl);
+ if (!vc)
+ break;
+ for (dl = ddf->dlist; dl; dl = dl->next)
+ if (be32_eq(dl->disk.refnum, vc->phys_refnum[n_bvd]))
+ break;
+ if (dl)
+ /* Found this disk, so not missing */
+ continue;
+
+ /* Mark the device as failed/missing. */
+ pd = find_phys(ddf, vc->phys_refnum[n_bvd]);
+ if (pd >= 0 && be16_and(ddf->phys->entries[pd].state,
+ cpu_to_be16(DDF_Online))) {
+ be16_clear(ddf->phys->entries[pd].state,
+ cpu_to_be16(DDF_Online));
+ be16_set(ddf->phys->entries[pd].state,
+ cpu_to_be16(DDF_Failed|DDF_Missing));
+ vc->phys_refnum[n_bvd] = cpu_to_be32(0);
+ ddf_set_updates_pending(ddf, vc);
+ }
+
+ /* Mark the array as Degraded */
+ state = get_svd_state(ddf, vcl);
+ 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;
+ a->check_degraded = 1;
+ ddf_set_updates_pending(ddf, vc);
+ }
+ }
+}
/*
* The array 'a' is to be marked clean in the metadata.
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 */
+ handle_missing(ddf, a, inst);
consistent = 1;
if (!is_resync_complete(&a->info))
consistent = 0;
else
ddf->virt->entries[inst].state |= DDF_state_inconsistent;
if (old != ddf->virt->entries[inst].state)
- ddf->updates_pending = 1;
+ ddf_set_updates_pending(ddf, NULL);
old = ddf->virt->entries[inst].init_state;
ddf->virt->entries[inst].init_state &= ~DDF_initstate_mask;
else
ddf->virt->entries[inst].init_state |= DDF_init_quick;
if (old != ddf->virt->entries[inst].init_state)
- ddf->updates_pending = 1;
+ ddf_set_updates_pending(ddf, NULL);
- dprintf("ddf mark %d %s %llu\n", inst, consistent?"clean":"dirty",
+ dprintf("ddf mark %d/%s (%d) %s %llu\n", inst,
+ guid_str(ddf->virt->entries[inst].guid), a->curr_state,
+ consistent?"clean":"dirty",
a->info.resync_start);
return consistent;
}
-#define container_of(ptr, type, member) ({ \
- const typeof( ((type *)0)->member ) *__mptr = (ptr); \
- (type *)( (char *)__mptr - offsetof(type,member) );})
+static int get_bvd_state(const struct ddf_super *ddf,
+ const struct vd_config *vc)
+{
+ unsigned int i, n_bvd, working = 0;
+ unsigned int n_prim = be16_to_cpu(vc->prim_elmnt_count);
+ int pd, st, state;
+ char *avail = xcalloc(1, n_prim);
+ mdu_array_info_t array;
+
+ layout_ddf2md(vc, &array);
+
+ for (i = 0; i < n_prim; i++) {
+ if (!find_index_in_bvd(ddf, vc, i, &n_bvd))
+ continue;
+ pd = find_phys(ddf, vc->phys_refnum[n_bvd]);
+ if (pd < 0)
+ continue;
+ st = be16_to_cpu(ddf->phys->entries[pd].state);
+ if ((st & (DDF_Online|DDF_Failed|DDF_Rebuilding))
+ == DDF_Online) {
+ working++;
+ avail[i] = 1;
+ }
+ }
+
+ state = DDF_state_degraded;
+ if (working == n_prim)
+ state = DDF_state_optimal;
+ else
+ switch (vc->prl) {
+ case DDF_RAID0:
+ case DDF_CONCAT:
+ case DDF_JBOD:
+ state = DDF_state_failed;
+ break;
+ case DDF_RAID1:
+ if (working == 0)
+ state = DDF_state_failed;
+ else if (working >= 2)
+ state = DDF_state_part_optimal;
+ break;
+ case DDF_RAID1E:
+ if (!enough(10, n_prim, array.layout, 1, avail))
+ state = DDF_state_failed;
+ break;
+ case DDF_RAID4:
+ case DDF_RAID5:
+ if (working < n_prim - 1)
+ state = DDF_state_failed;
+ break;
+ case DDF_RAID6:
+ if (working < n_prim - 2)
+ state = DDF_state_failed;
+ else if (working == n_prim - 1)
+ state = DDF_state_part_optimal;
+ break;
+ }
+ return state;
+}
+
+static int secondary_state(int state, int other, int seclevel)
+{
+ if (state == DDF_state_optimal && other == DDF_state_optimal)
+ return DDF_state_optimal;
+ if (seclevel == DDF_2MIRRORED) {
+ if (state == DDF_state_optimal || other == DDF_state_optimal)
+ return DDF_state_part_optimal;
+ if (state == DDF_state_failed && other == DDF_state_failed)
+ return DDF_state_failed;
+ return DDF_state_degraded;
+ } else {
+ if (state == DDF_state_failed || other == DDF_state_failed)
+ return DDF_state_failed;
+ if (state == DDF_state_degraded || other == DDF_state_degraded)
+ return DDF_state_degraded;
+ return DDF_state_part_optimal;
+ }
+}
+
+static int get_svd_state(const struct ddf_super *ddf, const struct vcl *vcl)
+{
+ int state = get_bvd_state(ddf, &vcl->conf);
+ unsigned int i;
+ for (i = 1; i < vcl->conf.sec_elmnt_count; i++) {
+ state = secondary_state(
+ state,
+ get_bvd_state(ddf, vcl->other_bvds[i-1]),
+ vcl->conf.srl);
+ }
+ return state;
+}
+
/*
* The state of each disk is stored in the global phys_disk structure
* in phys_disk.entries[n].state.
static void ddf_set_disk(struct active_array *a, int n, int state)
{
struct ddf_super *ddf = a->container->sb;
- unsigned int inst = a->info.container_member;
- struct vd_config *vc = find_vdcr(ddf, inst);
- int pd = find_phys(ddf, vc->phys_refnum[n]);
- int i, st, working;
+ unsigned int inst = a->info.container_member, n_bvd;
+ struct vcl *vcl;
+ struct vd_config *vc = find_vdcr(ddf, inst, (unsigned int)n,
+ &n_bvd, &vcl);
+ int pd;
struct mdinfo *mdi;
struct dl *dl;
+ int update = 0;
+ dprintf("%d to %x\n", n, state);
if (vc == NULL) {
dprintf("ddf: cannot find instance %d!!\n", inst);
return;
for (mdi = a->info.devs; mdi; mdi = mdi->next)
if (mdi->disk.raid_disk == n)
break;
- if (!mdi)
+ if (!mdi) {
+ pr_err("cannot find raid disk %d\n", n);
return;
+ }
/* and find the 'dl' entry corresponding to that. */
for (dl = ddf->dlist; dl; dl = dl->next)
mdi->disk.major == dl->major &&
mdi->disk.minor == dl->minor)
break;
- if (!dl)
+ if (!dl) {
+ pr_err("cannot find raid disk %d (%d/%d)\n",
+ n, mdi->disk.major, mdi->disk.minor);
return;
+ }
+ pd = find_phys(ddf, vc->phys_refnum[n_bvd]);
if (pd < 0 || pd != dl->pdnum) {
/* disk doesn't currently exist or has changed.
* If it is now in_sync, insert it. */
- if ((state & DS_INSYNC) && ! (state & DS_FAULTY)) {
- struct vcl *vcl;
+ dprintf("phys disk not found for %d: %d/%d ref %08x\n",
+ dl->pdnum, dl->major, dl->minor,
+ be32_to_cpu(dl->disk.refnum));
+ dprintf("array %u disk %u ref %08x pd %d\n",
+ inst, n_bvd,
+ be32_to_cpu(vc->phys_refnum[n_bvd]), pd);
+ if ((state & DS_INSYNC) && ! (state & DS_FAULTY) &&
+ dl->pdnum >= 0) {
pd = dl->pdnum;
- vc->phys_refnum[n] = dl->disk.refnum;
- vcl = container_of(vc, struct vcl, conf);
- vcl->lba_offset[n] = mdi->data_offset;
- ddf->phys->entries[pd].type &=
- ~__cpu_to_be16(DDF_Global_Spare);
- ddf->phys->entries[pd].type |=
- __cpu_to_be16(DDF_Active_in_VD);
- ddf->updates_pending = 1;
+ vc->phys_refnum[n_bvd] = dl->disk.refnum;
+ LBA_OFFSET(ddf, vc)[n_bvd] =
+ cpu_to_be64(mdi->data_offset);
+ be16_clear(ddf->phys->entries[pd].type,
+ cpu_to_be16(DDF_Global_Spare));
+ be16_set(ddf->phys->entries[pd].type,
+ cpu_to_be16(DDF_Active_in_VD));
+ update = 1;
}
} else {
- int old = ddf->phys->entries[pd].state;
+ be16 old = ddf->phys->entries[pd].state;
if (state & DS_FAULTY)
- ddf->phys->entries[pd].state |= __cpu_to_be16(DDF_Failed);
+ be16_set(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);
+ be16_set(ddf->phys->entries[pd].state,
+ cpu_to_be16(DDF_Online));
+ be16_clear(ddf->phys->entries[pd].state,
+ cpu_to_be16(DDF_Rebuilding));
}
- if (old != ddf->phys->entries[pd].state)
- ddf->updates_pending = 1;
+ if (!be16_eq(old, ddf->phys->entries[pd].state))
+ update = 1;
}
- dprintf("ddf: set_disk %d to %x\n", n, state);
+ dprintf("ddf: set_disk %d (%08x) to %x->%02x\n", n,
+ be32_to_cpu(dl->disk.refnum), state,
+ be16_to_cpu(ddf->phys->entries[pd].state));
/* Now we need to check the state of the array and update
* virtual_disk.entries[n].state.
* It needs to be one of "optimal", "degraded", "failed".
* I don't understand 'deleted' or 'missing'.
*/
- working = 0;
- for (i=0; i < a->info.array.raid_disks; i++) {
- pd = find_phys(ddf, vc->phys_refnum[i]);
- if (pd < 0)
- continue;
- st = __be16_to_cpu(ddf->phys->entries[pd].state);
- if ((st & (DDF_Online|DDF_Failed|DDF_Rebuilding))
- == DDF_Online)
- working++;
- }
- state = DDF_state_degraded;
- if (working == a->info.array.raid_disks)
- state = DDF_state_optimal;
- else switch(vc->prl) {
- case DDF_RAID0:
- case DDF_CONCAT:
- case DDF_JBOD:
- state = DDF_state_failed;
- break;
- case DDF_RAID1:
- if (working == 0)
- state = DDF_state_failed;
- break;
- case DDF_RAID4:
- case DDF_RAID5:
- if (working < a->info.array.raid_disks-1)
- state = DDF_state_failed;
- break;
- case DDF_RAID6:
- if (working < a->info.array.raid_disks-2)
- state = DDF_state_failed;
- else if (working == a->info.array.raid_disks-1)
- state = DDF_state_part_optimal;
- break;
- }
+ state = get_svd_state(ddf, vcl);
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;
+ update = 1;
}
-
+ if (update)
+ ddf_set_updates_pending(ddf, vc);
}
static void ddf_sync_metadata(struct supertype *st)
{
-
/*
* Write all data to all devices.
* Later, we might be able to track whether only local changes
if (!ddf->updates_pending)
return;
ddf->updates_pending = 0;
- __write_init_super_ddf(st, 0);
+ __write_init_super_ddf(st);
dprintf("ddf: sync_metadata\n");
}
+static int del_from_conflist(struct vcl **list, const char *guid)
+{
+ struct vcl **p;
+ int found = 0;
+ for (p = list; p && *p; p = &((*p)->next))
+ if (!memcmp((*p)->conf.guid, guid, DDF_GUID_LEN)) {
+ found = 1;
+ *p = (*p)->next;
+ }
+ return found;
+}
+
+static int _kill_subarray_ddf(struct ddf_super *ddf, const char *guid)
+{
+ struct dl *dl;
+ unsigned int vdnum, i;
+ vdnum = find_vde_by_guid(ddf, guid);
+ if (vdnum == DDF_NOTFOUND) {
+ pr_err("could not find VD %s\n", guid_str(guid));
+ return -1;
+ }
+ if (del_from_conflist(&ddf->conflist, guid) == 0) {
+ pr_err("could not find conf %s\n", guid_str(guid));
+ return -1;
+ }
+ for (dl = ddf->dlist; dl; dl = dl->next)
+ for (i = 0; i < ddf->max_part; i++)
+ if (dl->vlist[i] != NULL &&
+ !memcmp(dl->vlist[i]->conf.guid, guid,
+ DDF_GUID_LEN))
+ dl->vlist[i] = NULL;
+ memset(ddf->virt->entries[vdnum].guid, 0xff, DDF_GUID_LEN);
+ dprintf("deleted %s\n", guid_str(guid));
+ return 0;
+}
+
+static int kill_subarray_ddf(struct supertype *st)
+{
+ struct ddf_super *ddf = st->sb;
+ /*
+ * currentconf is set in container_content_ddf,
+ * called with subarray arg
+ */
+ struct vcl *victim = ddf->currentconf;
+ struct vd_config *conf;
+ unsigned int vdnum;
+
+ ddf->currentconf = NULL;
+ if (!victim) {
+ pr_err("nothing to kill\n");
+ return -1;
+ }
+ conf = &victim->conf;
+ vdnum = find_vde_by_guid(ddf, conf->guid);
+ if (vdnum == DDF_NOTFOUND) {
+ pr_err("could not find VD %s\n", guid_str(conf->guid));
+ return -1;
+ }
+ if (st->update_tail) {
+ struct virtual_disk *vd;
+ int len = sizeof(struct virtual_disk)
+ + sizeof(struct virtual_entry);
+ vd = xmalloc(len);
+ if (vd == NULL) {
+ pr_err("failed to allocate %d bytes\n", len);
+ return -1;
+ }
+ memset(vd, 0 , len);
+ vd->magic = DDF_VIRT_RECORDS_MAGIC;
+ vd->populated_vdes = cpu_to_be16(0);
+ memcpy(vd->entries[0].guid, conf->guid, DDF_GUID_LEN);
+ /* we use DDF_state_deleted as marker */
+ vd->entries[0].state = DDF_state_deleted;
+ append_metadata_update(st, vd, len);
+ } else {
+ _kill_subarray_ddf(ddf, conf->guid);
+ ddf_set_updates_pending(ddf, NULL);
+ ddf_sync_metadata(st);
+ }
+ return 0;
+}
+
+static void copy_matching_bvd(struct ddf_super *ddf,
+ struct vd_config *conf,
+ const struct metadata_update *update)
+{
+ unsigned int mppe =
+ be16_to_cpu(ddf->anchor.max_primary_element_entries);
+ unsigned int len = ddf->conf_rec_len * 512;
+ char *p;
+ struct vd_config *vc;
+ for (p = update->buf; p < update->buf + update->len; p += len) {
+ vc = (struct vd_config *) p;
+ if (vc->sec_elmnt_seq == conf->sec_elmnt_seq) {
+ memcpy(conf->phys_refnum, vc->phys_refnum,
+ mppe * (sizeof(__u32) + sizeof(__u64)));
+ return;
+ }
+ }
+ pr_err("no match for BVD %d of %s in update\n",
+ conf->sec_elmnt_seq, guid_str(conf->guid));
+}
+
+static void ddf_process_phys_update(struct supertype *st,
+ struct metadata_update *update)
+{
+ struct ddf_super *ddf = st->sb;
+ struct phys_disk *pd;
+ unsigned int ent;
+
+ pd = (struct phys_disk*)update->buf;
+ ent = be16_to_cpu(pd->used_pdes);
+ if (ent >= be16_to_cpu(ddf->phys->max_pdes))
+ return;
+ if (be16_and(pd->entries[0].state, cpu_to_be16(DDF_Missing))) {
+ struct dl **dlp;
+ /* removing this disk. */
+ be16_set(ddf->phys->entries[ent].state,
+ cpu_to_be16(DDF_Missing));
+ for (dlp = &ddf->dlist; *dlp; dlp = &(*dlp)->next) {
+ struct dl *dl = *dlp;
+ if (dl->pdnum == (signed)ent) {
+ close(dl->fd);
+ dl->fd = -1;
+ *dlp = dl->next;
+ update->space = dl->devname;
+ *(void**)dl = update->space_list;
+ update->space_list = (void**)dl;
+ break;
+ }
+ }
+ ddf_set_updates_pending(ddf, NULL);
+ return;
+ }
+ if (!all_ff(ddf->phys->entries[ent].guid))
+ return;
+ ddf->phys->entries[ent] = pd->entries[0];
+ ddf->phys->used_pdes = cpu_to_be16
+ (1 + be16_to_cpu(ddf->phys->used_pdes));
+ ddf_set_updates_pending(ddf, NULL);
+ 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;
+ }
+}
+
+static void ddf_process_virt_update(struct supertype *st,
+ struct metadata_update *update)
+{
+ struct ddf_super *ddf = st->sb;
+ struct virtual_disk *vd;
+ unsigned int ent;
+
+ vd = (struct virtual_disk*)update->buf;
+
+ if (vd->entries[0].state == DDF_state_deleted) {
+ if (_kill_subarray_ddf(ddf, vd->entries[0].guid))
+ return;
+ } else {
+ ent = find_vde_by_guid(ddf, vd->entries[0].guid);
+ if (ent != DDF_NOTFOUND) {
+ dprintf("VD %s exists already in slot %d\n",
+ guid_str(vd->entries[0].guid),
+ ent);
+ return;
+ }
+ ent = find_unused_vde(ddf);
+ if (ent == DDF_NOTFOUND)
+ return;
+ ddf->virt->entries[ent] = vd->entries[0];
+ ddf->virt->populated_vdes =
+ cpu_to_be16(
+ 1 + be16_to_cpu(
+ ddf->virt->populated_vdes));
+ dprintf("added VD %s in slot %d(s=%02x i=%02x)\n",
+ guid_str(vd->entries[0].guid), ent,
+ ddf->virt->entries[ent].state,
+ ddf->virt->entries[ent].init_state);
+ }
+ ddf_set_updates_pending(ddf, NULL);
+}
+
+static void ddf_remove_failed(struct ddf_super *ddf)
+{
+ /* Now remove any 'Failed' devices that are not part
+ * of any VD. They will have the Transition flag set.
+ * Once done, we need to update all dl->pdnum numbers.
+ */
+ unsigned int pdnum;
+ unsigned int pd2 = 0;
+ struct dl *dl;
+
+ for (pdnum = 0; pdnum < be16_to_cpu(ddf->phys->max_pdes);
+ pdnum++) {
+ if (be32_to_cpu(ddf->phys->entries[pdnum].refnum) ==
+ 0xFFFFFFFF)
+ continue;
+ if (be16_and(ddf->phys->entries[pdnum].state,
+ cpu_to_be16(DDF_Failed))
+ && be16_and(ddf->phys->entries[pdnum].state,
+ cpu_to_be16(DDF_Transition))) {
+ /* skip this one unless in dlist*/
+ for (dl = ddf->dlist; dl; dl = dl->next)
+ if (dl->pdnum == (int)pdnum)
+ break;
+ if (!dl)
+ continue;
+ }
+ if (pdnum == pd2)
+ pd2++;
+ else {
+ ddf->phys->entries[pd2] =
+ ddf->phys->entries[pdnum];
+ for (dl = ddf->dlist; dl; dl = dl->next)
+ if (dl->pdnum == (int)pdnum)
+ dl->pdnum = pd2;
+ pd2++;
+ }
+ }
+ ddf->phys->used_pdes = cpu_to_be16(pd2);
+ while (pd2 < pdnum) {
+ memset(ddf->phys->entries[pd2].guid, 0xff,
+ DDF_GUID_LEN);
+ pd2++;
+ }
+}
+
+static void ddf_update_vlist(struct ddf_super *ddf, struct dl *dl)
+{
+ struct vcl *vcl;
+ unsigned int vn = 0;
+ int in_degraded = 0;
+
+ if (dl->pdnum < 0)
+ return;
+ for (vcl = ddf->conflist; vcl ; vcl = vcl->next) {
+ unsigned int dn, ibvd;
+ const struct vd_config *conf;
+ int vstate;
+ dn = get_pd_index_from_refnum(vcl,
+ dl->disk.refnum,
+ ddf->mppe,
+ &conf, &ibvd);
+ if (dn == DDF_NOTFOUND)
+ continue;
+ dprintf("dev %d/%08x has %s (sec=%u) at %d\n",
+ dl->pdnum,
+ be32_to_cpu(dl->disk.refnum),
+ guid_str(conf->guid),
+ conf->sec_elmnt_seq, vn);
+ /* Clear the Transition flag */
+ if (be16_and
+ (ddf->phys->entries[dl->pdnum].state,
+ cpu_to_be16(DDF_Failed)))
+ be16_clear(ddf->phys
+ ->entries[dl->pdnum].state,
+ cpu_to_be16(DDF_Transition));
+ dl->vlist[vn++] = vcl;
+ vstate = ddf->virt->entries[vcl->vcnum].state
+ & DDF_state_mask;
+ if (vstate == DDF_state_degraded ||
+ vstate == DDF_state_part_optimal)
+ in_degraded = 1;
+ }
+ while (vn < ddf->max_part)
+ dl->vlist[vn++] = NULL;
+ if (dl->vlist[0]) {
+ be16_clear(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Global_Spare));
+ if (!be16_and(ddf->phys
+ ->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Active_in_VD))) {
+ be16_set(ddf->phys
+ ->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Active_in_VD));
+ if (in_degraded)
+ be16_set(ddf->phys
+ ->entries[dl->pdnum]
+ .state,
+ cpu_to_be16
+ (DDF_Rebuilding));
+ }
+ }
+ if (dl->spare) {
+ be16_clear(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Global_Spare));
+ be16_set(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Spare));
+ }
+ if (!dl->vlist[0] && !dl->spare) {
+ be16_set(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Global_Spare));
+ be16_clear(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Spare));
+ be16_clear(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Active_in_VD));
+ }
+}
+
+static void ddf_process_conf_update(struct supertype *st,
+ struct metadata_update *update)
+{
+ struct ddf_super *ddf = st->sb;
+ struct vd_config *vc;
+ struct vcl *vcl;
+ struct dl *dl;
+ unsigned int ent;
+ unsigned int pdnum, len;
+
+ vc = (struct vd_config*)update->buf;
+ len = ddf->conf_rec_len * 512;
+ if ((unsigned int)update->len != len * vc->sec_elmnt_count) {
+ pr_err("%s: insufficient data (%d) for %u BVDs\n",
+ guid_str(vc->guid), update->len,
+ vc->sec_elmnt_count);
+ return;
+ }
+ for (vcl = ddf->conflist; vcl ; vcl = vcl->next)
+ if (memcmp(vcl->conf.guid, vc->guid, DDF_GUID_LEN) == 0)
+ break;
+ dprintf("conf update for %s (%s)\n",
+ guid_str(vc->guid), (vcl ? "old" : "new"));
+ if (vcl) {
+ /* An update, just copy the phys_refnum and lba_offset
+ * fields
+ */
+ unsigned int i;
+ unsigned int k;
+ copy_matching_bvd(ddf, &vcl->conf, update);
+ for (k = 0; k < be16_to_cpu(vc->prim_elmnt_count); k++)
+ dprintf("BVD %u has %08x at %llu\n", 0,
+ be32_to_cpu(vcl->conf.phys_refnum[k]),
+ be64_to_cpu(LBA_OFFSET(ddf,
+ &vcl->conf)[k]));
+ for (i = 1; i < vc->sec_elmnt_count; i++) {
+ copy_matching_bvd(ddf, vcl->other_bvds[i-1],
+ update);
+ for (k = 0; k < be16_to_cpu(
+ vc->prim_elmnt_count); k++)
+ dprintf("BVD %u has %08x at %llu\n", i,
+ be32_to_cpu
+ (vcl->other_bvds[i-1]->
+ phys_refnum[k]),
+ be64_to_cpu
+ (LBA_OFFSET
+ (ddf,
+ vcl->other_bvds[i-1])[k]));
+ }
+ } else {
+ /* A new VD_CONF */
+ unsigned int i;
+ if (!update->space)
+ return;
+ vcl = update->space;
+ update->space = NULL;
+ vcl->next = ddf->conflist;
+ memcpy(&vcl->conf, vc, len);
+ ent = find_vde_by_guid(ddf, vc->guid);
+ if (ent == DDF_NOTFOUND)
+ return;
+ vcl->vcnum = ent;
+ ddf->conflist = vcl;
+ for (i = 1; i < vc->sec_elmnt_count; i++)
+ memcpy(vcl->other_bvds[i-1],
+ update->buf + len * i, len);
+ }
+ /* Set DDF_Transition on all Failed devices - to help
+ * us detect those that are no longer in use
+ */
+ for (pdnum = 0; pdnum < be16_to_cpu(ddf->phys->max_pdes);
+ pdnum++)
+ if (be16_and(ddf->phys->entries[pdnum].state,
+ cpu_to_be16(DDF_Failed)))
+ be16_set(ddf->phys->entries[pdnum].state,
+ cpu_to_be16(DDF_Transition));
+
+ /* Now make sure vlist is correct for each dl. */
+ for (dl = ddf->dlist; dl; dl = dl->next)
+ ddf_update_vlist(ddf, dl);
+ ddf_remove_failed(ddf);
+
+ ddf_set_updates_pending(ddf, vc);
+}
+
static void ddf_process_update(struct supertype *st,
struct metadata_update *update)
{
* our actions.
* Possible update are:
* DDF_PHYS_RECORDS_MAGIC
- * Add a new physical device. Changes to this record
- * only happen implicitly.
+ * Add a new physical device or remove an old one.
+ * Changes to this record only happen implicitly.
* used_pdes is the device number.
* DDF_VIRT_RECORDS_MAGIC
* Add a new VD. Possibly also change the 'access' bits.
* and offset. This will also mark the spare as active with
* a spare-assignment record.
*/
- struct ddf_super *ddf = st->sb;
- __u32 *magic = (__u32*)update->buf;
- struct phys_disk *pd;
- struct virtual_disk *vd;
- struct vd_config *vc;
- struct vcl *vcl;
- struct dl *dl;
- unsigned int mppe;
- unsigned int ent;
- unsigned int pdnum, pd2;
+ be32 *magic = (be32 *)update->buf;
- dprintf("Process update %x\n", *magic);
+ dprintf("Process update %x\n", be32_to_cpu(*magic));
- switch (*magic) {
- case DDF_PHYS_RECORDS_MAGIC:
-
- if (update->len != (sizeof(struct phys_disk) +
+ if (be32_eq(*magic, DDF_PHYS_RECORDS_MAGIC)) {
+ if (update->len == (sizeof(struct phys_disk) +
sizeof(struct phys_disk_entry)))
- return;
- pd = (struct phys_disk*)update->buf;
-
- ent = __be16_to_cpu(pd->used_pdes);
- if (ent >= __be16_to_cpu(ddf->phys->max_pdes))
- return;
- if (!all_ff(ddf->phys->entries[ent].guid))
- return;
- 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:
-
- if (update->len != (sizeof(struct virtual_disk) +
+ ddf_process_phys_update(st, update);
+ } else if (be32_eq(*magic, DDF_VIRT_RECORDS_MAGIC)) {
+ if (update->len == (sizeof(struct virtual_disk) +
sizeof(struct virtual_entry)))
- return;
- vd = (struct virtual_disk*)update->buf;
-
- ent = __be16_to_cpu(vd->populated_vdes);
- if (ent >= __be16_to_cpu(ddf->virt->max_vdes))
- return;
- if (!all_ff(ddf->virt->entries[ent].guid))
- return;
- 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:
- dprintf("len %d %d\n", update->len, ddf->conf_rec_len);
-
- mppe = __be16_to_cpu(ddf->anchor.max_primary_element_entries);
- if ((unsigned)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;
- dprintf("vcl = %p\n", vcl);
- if (vcl) {
- /* An update, just copy the phys_refnum and lba_offset
- * fields
- */
- memcpy(vcl->conf.phys_refnum, vc->phys_refnum,
- mppe * (sizeof(__u32) + sizeof(__u64)));
- } else {
- /* A new VD_CONF */
- if (!update->space)
- return;
- vcl = update->space;
- update->space = NULL;
- vcl->next = ddf->conflist;
- memcpy(&vcl->conf, vc, update->len);
- vcl->lba_offset = (__u64*)
- &vcl->conf.phys_refnum[mppe];
- for (ent = 0;
- ent < __be16_to_cpu(ddf->virt->populated_vdes);
- ent++)
- if (memcmp(vc->guid, ddf->virt->entries[ent].guid,
- DDF_GUID_LEN) == 0) {
- vcl->vcnum = ent;
- break;
- }
- ddf->conflist = vcl;
- }
- /* Set DDF_Transition on all Failed devices - to help
- * us detect those that are no longer in use
- */
- for (pdnum = 0; pdnum < __be16_to_cpu(ddf->phys->used_pdes); pdnum++)
- if (ddf->phys->entries[pdnum].state
- & __be16_to_cpu(DDF_Failed))
- ddf->phys->entries[pdnum].state
- |= __be16_to_cpu(DDF_Transition);
- /* Now make sure vlist is correct for each dl. */
- for (dl = ddf->dlist; dl; dl = dl->next) {
- unsigned int dn;
- unsigned int vn = 0;
- int in_degraded = 0;
- for (vcl = ddf->conflist; vcl ; vcl = vcl->next)
- for (dn=0; dn < ddf->mppe ; dn++)
- if (vcl->conf.phys_refnum[dn] ==
- dl->disk.refnum) {
- int vstate;
- dprintf("dev %d has %p at %d\n",
- dl->pdnum, vcl, vn);
- /* Clear the Transition flag */
- if (ddf->phys->entries[dl->pdnum].state
- & __be16_to_cpu(DDF_Failed))
- ddf->phys->entries[dl->pdnum].state &=
- ~__be16_to_cpu(DDF_Transition);
-
- dl->vlist[vn++] = vcl;
- vstate = ddf->virt->entries[vcl->vcnum].state
- & DDF_state_mask;
- if (vstate == DDF_state_degraded ||
- vstate == DDF_state_part_optimal)
- in_degraded = 1;
- break;
- }
- while (vn < ddf->max_part)
- dl->vlist[vn++] = NULL;
- if (dl->vlist[0]) {
- ddf->phys->entries[dl->pdnum].type &=
- ~__cpu_to_be16(DDF_Global_Spare);
- if (!(ddf->phys->entries[dl->pdnum].type &
- __cpu_to_be16(DDF_Active_in_VD))) {
- ddf->phys->entries[dl->pdnum].type |=
- __cpu_to_be16(DDF_Active_in_VD);
- if (in_degraded)
- ddf->phys->entries[dl->pdnum].state |=
- __cpu_to_be16(DDF_Rebuilding);
- }
- }
- if (dl->spare) {
- ddf->phys->entries[dl->pdnum].type &=
- ~__cpu_to_be16(DDF_Global_Spare);
- ddf->phys->entries[dl->pdnum].type |=
- __cpu_to_be16(DDF_Spare);
- }
- if (!dl->vlist[0] && !dl->spare) {
- ddf->phys->entries[dl->pdnum].type |=
- __cpu_to_be16(DDF_Global_Spare);
- ddf->phys->entries[dl->pdnum].type &=
- ~__cpu_to_be16(DDF_Spare |
- DDF_Active_in_VD);
- }
- }
-
- /* Now remove any 'Failed' devices that are not part
- * of any VD. They will have the Transition flag set.
- * Once done, we need to update all dl->pdnum numbers.
- */
- pd2 = 0;
- for (pdnum = 0; pdnum < __be16_to_cpu(ddf->phys->used_pdes); pdnum++)
- if ((ddf->phys->entries[pdnum].state
- & __be16_to_cpu(DDF_Failed))
- && (ddf->phys->entries[pdnum].state
- & __be16_to_cpu(DDF_Transition)))
- /* skip this one */;
- else if (pdnum == pd2)
- pd2++;
- else {
- ddf->phys->entries[pd2] = ddf->phys->entries[pdnum];
- for (dl = ddf->dlist; dl; dl = dl->next)
- if (dl->pdnum == (int)pdnum)
- dl->pdnum = pd2;
- pd2++;
- }
- ddf->phys->used_pdes = __cpu_to_be16(pd2);
- while (pd2 < pdnum) {
- memset(ddf->phys->entries[pd2].guid, 0xff, DDF_GUID_LEN);
- pd2++;
- }
-
- ddf->updates_pending = 1;
- break;
- case DDF_SPARE_ASSIGN_MAGIC:
- default: break;
+ ddf_process_virt_update(st, update);
+ } else if (be32_eq(*magic, DDF_VD_CONF_MAGIC)) {
+ ddf_process_conf_update(st, update);
}
+ /* case DDF_SPARE_ASSIGN_MAGIC */
}
-static void ddf_prepare_update(struct supertype *st,
- struct metadata_update *update)
+static int 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)
+ be32 *magic;
+ if (update->len < 4)
+ return 0;
+ magic = (be32 *)update->buf;
+ if (be32_eq(*magic, DDF_VD_CONF_MAGIC)) {
+ struct vcl *vcl;
+ struct vd_config *conf;
+ if (update->len < (int)sizeof(*conf))
+ return 0;
+ conf = (struct vd_config *) update->buf;
if (posix_memalign(&update->space, 512,
- offsetof(struct vcl, conf)
- + ddf->conf_rec_len * 512) != 0)
+ offsetof(struct vcl, conf)
+ + ddf->conf_rec_len * 512) != 0) {
update->space = NULL;
+ return 0;
+ }
+ vcl = update->space;
+ vcl->conf.sec_elmnt_count = conf->sec_elmnt_count;
+ if (alloc_other_bvds(ddf, vcl) != 0) {
+ free(update->space);
+ update->space = NULL;
+ return 0;
+ }
+ }
+ return 1;
+}
+
+/*
+ * Check degraded state of a RAID10.
+ * returns 2 for good, 1 for degraded, 0 for failed, and -1 for error
+ */
+static int raid10_degraded(struct mdinfo *info)
+{
+ int n_prim, n_bvds;
+ int i;
+ struct mdinfo *d;
+ char *found;
+ int ret = -1;
+
+ n_prim = info->array.layout & ~0x100;
+ n_bvds = info->array.raid_disks / n_prim;
+ found = xmalloc(n_bvds);
+ if (found == NULL)
+ return ret;
+ memset(found, 0, n_bvds);
+ for (d = info->devs; d; d = d->next) {
+ i = d->disk.raid_disk / n_prim;
+ if (i >= n_bvds) {
+ pr_err("BUG: invalid raid disk\n");
+ goto out;
+ }
+ if (d->state_fd > 0)
+ found[i]++;
+ }
+ ret = 2;
+ for (i = 0; i < n_bvds; i++)
+ if (!found[i]) {
+ dprintf("BVD %d/%d failed\n", i, n_bvds);
+ ret = 0;
+ goto out;
+ } else if (found[i] < n_prim) {
+ dprintf("BVD %d/%d degraded\n", i, n_bvds);
+ ret = 1;
+ }
+out:
+ free(found);
+ return ret;
}
/*
* arrange for their inclusion.
* We only choose devices which are not already in the array,
* and prefer those with a spare-assignment to this array.
- * otherwise we choose global spares - assuming always that
+ * Otherwise we choose global spares - assuming always that
* there is enough room.
* For each spare that we assign, we return an 'mdinfo' which
* describes the position for the device in the array.
struct metadata_update *mu;
struct dl *dl;
int i;
+ unsigned int j;
+ struct vcl *vcl;
struct vd_config *vc;
- __u64 *lba;
+ unsigned int n_bvd;
for (d = a->info.devs ; d ; d = d->next) {
if ((d->curr_state & DS_FAULTY) &&
- d->state_fd >= 0)
+ d->state_fd >= 0)
/* wait for Removal to happen */
return NULL;
if (d->state_fd >= 0)
working ++;
}
- dprintf("ddf_activate: working=%d (%d) level=%d\n", working, a->info.array.raid_disks,
+ dprintf("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 */
if (working < a->info.array.raid_disks - 2)
return NULL; /* failed */
break;
+ case 10:
+ if (raid10_degraded(&a->info) < 1)
+ return NULL;
+ break;
default: /* concat or stripe */
return NULL; /* failed */
}
struct mdinfo *d2;
int is_global = 0;
int is_dedicated = 0;
- struct extent *ex;
- unsigned int j;
+ be16 state;
+
+ if (dl->pdnum < 0)
+ continue;
+ state = ddf->phys->entries[dl->pdnum].state;
+ if (be16_and(state,
+ cpu_to_be16(DDF_Failed|DDF_Missing)) ||
+ !be16_and(state,
+ cpu_to_be16(DDF_Online)))
+ continue;
+
/* If in this array, skip */
for (d2 = a->info.devs ; d2 ; d2 = d2->next)
if (d2->state_fd >= 0 &&
d2->disk.major == dl->major &&
d2->disk.minor == dl->minor) {
- dprintf("%x:%x already in array\n", dl->major, dl->minor);
+ dprintf("%x:%x (%08x) already in array\n",
+ dl->major, dl->minor,
+ be32_to_cpu(dl->disk.refnum));
break;
}
if (d2)
continue;
- if (ddf->phys->entries[dl->pdnum].type &
- __cpu_to_be16(DDF_Spare)) {
+ if (be16_and(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Spare))) {
/* Check spare assign record */
if (dl->spare) {
if (dl->spare->type & DDF_spare_dedicated) {
/* check spare_ents for guid */
+ unsigned int j;
for (j = 0 ;
- j < __be16_to_cpu(dl->spare->populated);
+ j < be16_to_cpu
+ (dl->spare
+ ->populated);
j++) {
if (memcmp(dl->spare->spare_ents[j].guid,
ddf->virt->entries[a->info.container_member].guid,
} else
is_global = 1;
}
- } else if (ddf->phys->entries[dl->pdnum].type &
- __cpu_to_be16(DDF_Global_Spare)) {
+ } else if (be16_and(ddf->phys->entries[dl->pdnum].type,
+ cpu_to_be16(DDF_Global_Spare))) {
+ is_global = 1;
+ } else if (!be16_and(ddf->phys
+ ->entries[dl->pdnum].state,
+ cpu_to_be16(DDF_Failed))) {
+ /* we can possibly use some of this */
is_global = 1;
}
if ( ! (is_dedicated ||
(is_global && global_ok))) {
dprintf("%x:%x not suitable: %d %d\n", dl->major, dl->minor,
- is_dedicated, is_global);
+ is_dedicated, is_global);
continue;
}
/* We are allowed to use this device - is there space?
* We need a->info.component_size sectors */
- ex = get_extents(ddf, dl);
- if (!ex) {
- dprintf("cannot get extents\n");
- continue;
- }
- j = 0; pos = 0;
- esize = 0;
-
- do {
- esize = ex[j].start - pos;
- if (esize >= a->info.component_size)
- break;
- pos = ex[j].start + ex[j].size;
- j++;
- } while (ex[j-1].size);
+ esize = a->info.component_size;
+ pos = find_space(ddf, dl, INVALID_SECTORS, &esize);
- free(ex);
if (esize < a->info.component_size) {
dprintf("%x:%x has no room: %llu %llu\n",
dl->major, dl->minor,
}
/* Cool, we have a device with some space at pos */
- di = malloc(sizeof(*di));
- if (!di)
- continue;
- memset(di, 0, sizeof(*di));
+ di = xcalloc(1, sizeof(*di));
di->disk.number = i;
di->disk.raid_disk = i;
di->disk.major = dl->major;
di->recovery_start = 0;
di->data_offset = pos;
di->component_size = a->info.component_size;
- di->container_member = dl->pdnum;
di->next = rv;
rv = di;
- dprintf("%x:%x to be %d at %llu\n", dl->major, dl->minor,
- i, pos);
+ dprintf("%x:%x (%08x) to be %d at %llu\n",
+ dl->major, dl->minor,
+ be32_to_cpu(dl->disk.refnum), i, pos);
break;
}
* Create a metadata_update record to update the
* phys_refnum and lba_offset values
*/
- mu = malloc(sizeof(*mu));
- if (mu && posix_memalign(&mu->space, 512, sizeof(struct vcl)) != 0) {
+ vc = find_vdcr(ddf, a->info.container_member, rv->disk.raid_disk,
+ &n_bvd, &vcl);
+ if (vc == NULL)
+ return NULL;
+
+ mu = xmalloc(sizeof(*mu));
+ if (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->len = ddf->conf_rec_len * 512;
+ mu->len = ddf->conf_rec_len * 512 * vcl->conf.sec_elmnt_count;
+ mu->buf = xmalloc(mu->len);
mu->space = NULL;
+ mu->space_list = NULL;
mu->next = *updates;
- vc = find_vdcr(ddf, a->info.container_member);
- memcpy(mu->buf, vc, ddf->conf_rec_len * 512);
+ memcpy(mu->buf, &vcl->conf, ddf->conf_rec_len * 512);
+ for (j = 1; j < vcl->conf.sec_elmnt_count; j++)
+ memcpy(mu->buf + j * ddf->conf_rec_len * 512,
+ vcl->other_bvds[j-1], ddf->conf_rec_len * 512);
vc = (struct vd_config*)mu->buf;
- lba = (__u64*)&vc->phys_refnum[ddf->mppe];
for (di = rv ; di ; di = di->next) {
- vc->phys_refnum[di->disk.raid_disk] =
- ddf->phys->entries[dl->pdnum].refnum;
- lba[di->disk.raid_disk] = di->data_offset;
+ unsigned int i_sec, i_prim;
+ i_sec = di->disk.raid_disk
+ / be16_to_cpu(vcl->conf.prim_elmnt_count);
+ i_prim = di->disk.raid_disk
+ % be16_to_cpu(vcl->conf.prim_elmnt_count);
+ vc = (struct vd_config *)(mu->buf
+ + i_sec * ddf->conf_rec_len * 512);
+ for (dl = ddf->dlist; dl; dl = dl->next)
+ if (dl->major == di->disk.major
+ && dl->minor == di->disk.minor)
+ break;
+ if (!dl || dl->pdnum < 0) {
+ pr_err("BUG: can't find disk %d (%d/%d)\n",
+ di->disk.raid_disk,
+ di->disk.major, di->disk.minor);
+ return NULL;
+ }
+ vc->phys_refnum[i_prim] = ddf->phys->entries[dl->pdnum].refnum;
+ LBA_OFFSET(ddf, vc)[i_prim] = cpu_to_be64(di->data_offset);
+ dprintf("BVD %u gets %u: %08x at %llu\n", i_sec, i_prim,
+ be32_to_cpu(vc->phys_refnum[i_prim]),
+ be64_to_cpu(LBA_OFFSET(ddf, vc)[i_prim]));
}
*updates = mu;
return rv;
}
}
+static void default_geometry_ddf(struct supertype *st, int *level, int *layout, int *chunk)
+{
+ if (level && *level == UnSet)
+ *level = LEVEL_CONTAINER;
+
+ if (level && layout && *layout == UnSet)
+ *layout = ddf_level_to_layout(*level);
+}
+
struct superswitch super_ddf = {
#ifndef MDASSEMBLE
.examine_super = examine_super_ddf,
.validate_geometry = validate_geometry_ddf,
.write_init_super = write_init_super_ddf,
.add_to_super = add_to_super_ddf,
+ .remove_from_super = remove_from_super_ddf,
+ .load_container = load_container_ddf,
+ .copy_metadata = copy_metadata_ddf,
+ .kill_subarray = kill_subarray_ddf,
#endif
.match_home = match_home_ddf,
.uuid_from_super= uuid_from_super_ddf,
.free_super = free_super_ddf,
.match_metadata_desc = match_metadata_desc_ddf,
.container_content = container_content_ddf,
- .default_layout = ddf_level_to_layout,
+ .default_geometry = default_geometry_ddf,
.external = 1,
projects / thirdparty / mdadm.git / blobdiff