diff options
Diffstat (limited to 'sys/dev/softraid.c')
| -rw-r--r-- | sys/dev/softraid.c | 2334 |
1 files changed, 1241 insertions, 1093 deletions
diff --git a/sys/dev/softraid.c b/sys/dev/softraid.c index a60ee5ca196..b727b104ace 100644 --- a/sys/dev/softraid.c +++ b/sys/dev/softraid.c @@ -1,4 +1,4 @@ -/* $OpenBSD: softraid.c,v 1.116 2008/06/25 17:43:09 thib Exp $ */ +/* $OpenBSD: softraid.c,v 1.117 2008/07/19 22:41:58 marco Exp $ */ /* * Copyright (c) 2007 Marco Peereboom <marco@peereboom.us> * Copyright (c) 2008 Chris Kuethe <ckuethe@openbsd.org> @@ -64,8 +64,6 @@ uint32_t sr_debug = 0 ; #endif -void sr_init(void); - int sr_match(struct device *, void *, void *); void sr_attach(struct device *, struct device *, void *); int sr_detach(struct device *, int); @@ -80,6 +78,7 @@ struct cfdriver softraid_cd = { NULL, "softraid", DV_DULL }; +/* scsi & discipline */ int sr_scsi_cmd(struct scsi_xfer *); void sr_minphys(struct buf *bp); void sr_copy_internal_data(struct scsi_xfer *, @@ -96,69 +95,1050 @@ int sr_ioctl_createraid(struct sr_softc *, struct bioc_createraid *, int); int sr_ioctl_deleteraid(struct sr_softc *, struct bioc_deleteraid *); -int sr_open_chunks(struct sr_softc *, - struct sr_chunk_head *, dev_t *, int); -int sr_read_meta(struct sr_discipline *); -int sr_create_chunk_meta(struct sr_softc *, - struct sr_chunk_head *); -void sr_unwind_chunks(struct sr_softc *, +void sr_chunks_unwind(struct sr_softc *, struct sr_chunk_head *); -void sr_free_discipline(struct sr_discipline *); -void sr_shutdown_discipline(struct sr_discipline *); +void sr_discipline_free(struct sr_discipline *); +void sr_discipline_shutdown(struct sr_discipline *); /* utility functions */ void sr_shutdown(void *); -void sr_get_uuid(struct sr_uuid *); -void sr_print_uuid(struct sr_uuid *, int); -u_int32_t sr_checksum(char *, u_int32_t *, u_int32_t); -int sr_clear_metadata(struct sr_discipline *); -int sr_save_metadata(struct sr_discipline *, u_int32_t); +void sr_uuid_get(struct sr_uuid *); +void sr_uuid_print(struct sr_uuid *, int); +void sr_checksum_print(u_int8_t *); +void sr_checksum(struct sr_softc *, void *, void *, + u_int32_t); int sr_boot_assembly(struct sr_softc *); int sr_already_assembled(struct sr_discipline *); -int sr_validate_metadata(struct sr_softc *, dev_t, - struct sr_metadata *); /* don't include these on RAMDISK */ #ifndef SMALL_KERNEL -void sr_refresh_sensors(void *); -int sr_create_sensors(struct sr_discipline *); -void sr_delete_sensors(struct sr_discipline *); +void sr_sensors_refresh(void *); +int sr_sensors_create(struct sr_discipline *); +void sr_sensors_delete(struct sr_discipline *); #endif +/* metadata */ +int sr_meta_probe(struct sr_discipline *, dev_t *, int); +int sr_meta_attach(struct sr_discipline *, int); +void sr_meta_getdevname(struct sr_softc *, dev_t, char *, + int); +int sr_meta_rw(struct sr_discipline *, dev_t, void *, + size_t, daddr64_t, long); +int sr_meta_clear(struct sr_discipline *); +int sr_meta_read(struct sr_discipline *); +int sr_meta_save(struct sr_discipline *, u_int32_t); +int sr_meta_validate(struct sr_discipline *, dev_t, + struct sr_metadata *, void *); +void sr_meta_chunks_create(struct sr_softc *, + struct sr_chunk_head *); +void sr_meta_init(struct sr_discipline *, + struct sr_chunk_head *); + +/* native metadata format */ +int sr_meta_native_bootprobe(struct sr_softc *, + struct device *, struct sr_metadata_list_head *); +#define SR_META_NOTCLAIMED (0) +#define SR_META_CLAIMED (1) +int sr_meta_native_probe(struct sr_softc *, + struct sr_chunk *); +int sr_meta_native_attach(struct sr_discipline *, int); +int sr_meta_native_read(struct sr_discipline *, dev_t, + struct sr_metadata *, void *); +int sr_meta_native_write(struct sr_discipline *, dev_t, + struct sr_metadata *,void *); + #ifdef SR_DEBUG -void sr_print_metadata(struct sr_metadata *); +void sr_meta_print(struct sr_metadata *); #else -#define sr_print_metadata(m) +#define sr_meta_print(m) #endif -struct pool sr_uiopl; -struct pool sr_iovpl; - -struct scsi_adapter sr_switch = { - sr_scsi_cmd, sr_minphys, NULL, NULL, sr_scsi_ioctl +/* the metadata driver should remain stateless */ +struct sr_meta_driver { + daddr64_t smd_offset; /* metadata location */ + u_int32_t smd_size; /* size of metadata */ + + int (*smd_probe)(struct sr_softc *, + struct sr_chunk *); + int (*smd_attach)(struct sr_discipline *, int); + int (*smd_detach)(struct sr_discipline *); + int (*smd_read)(struct sr_discipline *, dev_t, + struct sr_metadata *, void *); + int (*smd_write)(struct sr_discipline *, dev_t, + struct sr_metadata *, void *); + int (*smd_validate)(struct sr_discipline *, + struct sr_metadata *, void *); +} smd[] = { + { SR_META_OFFSET, SR_META_SIZE * 512, + sr_meta_native_probe, sr_meta_native_attach, NULL, + sr_meta_native_read , sr_meta_native_write, NULL }, +#define SR_META_F_NATIVE 0 + { 0, 0, NULL, NULL, NULL, NULL } +#define SR_META_F_INVALID -1 }; -struct scsi_device sr_dev = { - NULL, NULL, NULL, NULL -}; +int +sr_meta_attach(struct sr_discipline *sd, int force) +{ + struct sr_softc *sc = sd->sd_sc; + struct sr_chunk_head *cl; + struct sr_chunk *ch_entry; + int rv = 1, i; + + DNPRINTF(SR_D_META, "%s: sr_meta_attach(%d)\n", DEVNAME(sc)); + + /* in memory copy of metadata */ + sd->sd_meta = malloc(SR_META_SIZE * 512 , M_DEVBUF, M_ZERO); + if (!sd->sd_meta) { + printf("%s: could not allocate memory for metadata\n", + DEVNAME(sc)); + goto bad; + } + + if (sd->sd_meta_type != SR_META_F_NATIVE) { + /* in memory copy of foreign metadata */ + sd->sd_meta_foreign = malloc(smd[sd->sd_meta_type].smd_size , + M_DEVBUF, M_ZERO); + if (!sd->sd_meta_foreign) { + /* unwind frees sd_meta */ + printf("%s: could not allocate memory for foreign " + "metadata\n", DEVNAME(sc)); + goto bad; + } + } + + if (smd[sd->sd_meta_type].smd_attach(sd, force)) + goto bad; + + /* fill out chunk array */ + cl = &sd->sd_vol.sv_chunk_list; + i = 0; + SLIST_FOREACH(ch_entry, cl, src_link) + sd->sd_vol.sv_chunks[i++] = ch_entry; + + rv = 0; +bad: + return (rv); +} + +int +sr_meta_probe(struct sr_discipline *sd, dev_t *dt, int no_chunk) +{ + struct sr_softc *sc = sd->sd_sc; + struct bdevsw *bdsw; + struct sr_chunk *ch_entry, *ch_prev = NULL; + struct sr_chunk_head *cl; + char devname[32]; + int i, d, type, found, prevf, error; + dev_t dev; + + DNPRINTF(SR_D_META, "%s: sr_meta_probe(%d)\n", DEVNAME(sc), no_chunk); + + if (no_chunk == 0) + goto unwind; + + + cl = &sd->sd_vol.sv_chunk_list; + + for (d = 0, prevf = SR_META_F_INVALID; d < no_chunk; d++) { + dev = dt[d]; + sr_meta_getdevname(sc, dev, devname, sizeof(devname)); + bdsw = bdevsw_lookup(dev); + + /* + * XXX leaving dev open for now; move this to attach and figure + * out the open/close dance for unwind. + */ + error = bdsw->d_open(dev, FREAD | FWRITE , S_IFBLK, curproc); + if (error) { + DNPRINTF(SR_D_META,"%s: sr_meta_probe can't open %s\n", + DEVNAME(sc), devname); + /* XXX device isn't open but will be closed anyway */ + goto unwind; + } + + ch_entry = malloc(sizeof(struct sr_chunk), M_DEVBUF, + M_WAITOK | M_ZERO); + /* keep disks in user supplied order */ + if (ch_prev) + SLIST_INSERT_AFTER(ch_prev, ch_entry, src_link); + else + SLIST_INSERT_HEAD(cl, ch_entry, src_link); + ch_prev = ch_entry; + strlcpy(ch_entry->src_devname, devname, + sizeof(ch_entry->src_devname)); + ch_entry->src_dev_mm = dev; + + /* determine if this is a device we understand */ + for (i = 0, found = SR_META_F_INVALID; smd[i].smd_probe; i++) { + type = smd[i].smd_probe(sc, ch_entry); + if (type == SR_META_F_INVALID) + continue; + else { + found = type; + break; + } + } + if (found == SR_META_F_INVALID) + goto unwind; + if (prevf == SR_META_F_INVALID) + prevf = found; + if (prevf != found) { + DNPRINTF(SR_D_META, "%s: prevf != found\n", + DEVNAME(sc)); + goto unwind; + } + } + + return (prevf); +unwind: + return (SR_META_F_INVALID); +} void -sr_init(void) +sr_meta_getdevname(struct sr_softc *sc, dev_t dev, char *buf, int size) { - pool_init(&sr_uiopl, sizeof(struct uio), 0, 0, 0, "sr_uiopl", NULL); - pool_init(&sr_iovpl, sizeof(struct iovec), 0, 0, 0, "sr_iovpl", NULL); + int maj, unit, part; + char *name; + + DNPRINTF(SR_D_META, "%s: sr_meta_getdevname(%p, %d)\n", + DEVNAME(sc), buf, size); + + if (!buf) + return; + + maj = major(dev); + part = DISKPART(dev); + unit = DISKUNIT(dev); + + name = findblkname(maj); + if (name == NULL) + return; + + snprintf(buf, size, "%s%d%c", name, unit, part + 'a'); } int -sr_match(struct device *parent, void *match, void *aux) +sr_meta_rw(struct sr_discipline *sd, dev_t dev, void *md, size_t sz, + daddr64_t ofs, long flags) +{ + struct sr_softc *sc = sd->sd_sc; + struct buf b; + int rv = 1; + + DNPRINTF(SR_D_META, "%s: sr_meta_rw(0x%x, %p, %d, %llu 0x%x)\n", + DEVNAME(sc), dev, md, sz, ofs, flags); + + if (md == NULL) { + printf("%s: read invalid metadata pointer\n", sc); + goto done; + } + + bzero(&b, sizeof(b)); + b.b_flags = flags; + b.b_blkno = ofs; + b.b_bcount = sz; + b.b_bufsize = sz; + b.b_resid = sz; + b.b_data = md; + b.b_error = 0; + b.b_proc = curproc; + b.b_dev = dev; + b.b_vp = NULL; + b.b_iodone = NULL; + LIST_INIT(&b.b_dep); + bdevsw_lookup(b.b_dev)->d_strategy(&b); + biowait(&b); + + if (b.b_flags & B_ERROR) { + printf("%s: 0x%x i/o error on block %lld while reading " + "metadata %d\n", sc, dev, b.b_blkno, b.b_error); + goto done; + } + rv = 0; +done: + return (rv); +} + +int +sr_meta_clear(struct sr_discipline *sd) { - static int called = 0; + struct sr_softc *sc = sd->sd_sc; + struct sr_chunk_head *cl = &sd->sd_vol.sv_chunk_list; + struct sr_chunk *ch_entry; + void *m; + int rv = 1; - if (!called) { - sr_init(); - called = 1; + DNPRINTF(SR_D_META, "%s: sr_meta_clear\n", DEVNAME(sc)); + + if (sd->sd_meta_type != SR_META_F_NATIVE) { + printf("%s: sr_meta_clear can not clear foreign metadata\n", + DEVNAME(sc)); + goto done; } + m = malloc(SR_META_SIZE * 512 , M_DEVBUF, M_WAITOK | M_ZERO); + SLIST_FOREACH(ch_entry, cl, src_link) { + if (sr_meta_native_write(sd, ch_entry->src_dev_mm, m, NULL)) { + /* XXX mark disk offline */ + DNPRINTF(SR_D_META, "%s: sr_meta_clear failed to " + "clear %s\n", ch_entry->src_devname); + rv++; + continue; + } + bzero(&ch_entry->src_meta, sizeof(ch_entry->src_meta)); + bzero(&ch_entry->src_opt, sizeof(ch_entry->src_opt)); + } + + bzero(sd->sd_meta, SR_META_SIZE * 512); + + free(m, M_DEVBUF); + rv = 0; +done: + return (rv); +} + +void +sr_meta_chunks_create(struct sr_softc *sc, struct sr_chunk_head *cl) +{ + struct sr_chunk *ch_entry; + struct sr_uuid uuid; + int cid = 0; + char *name; + u_int64_t max_chunk_sz = 0, min_chunk_sz; + + DNPRINTF(SR_D_META, "%s: sr_meta_chunks_create\n", DEVNAME(sc)); + + sr_uuid_get(&uuid); + + /* fill out stuff and get largest chunk size while looping */ + SLIST_FOREACH(ch_entry, cl, src_link) { + name = ch_entry->src_devname; + ch_entry->src_meta.scmi.scm_size = ch_entry->src_size; + ch_entry->src_meta.scmi.scm_chunk_id = cid++; + ch_entry->src_meta.scm_status = BIOC_SDONLINE; + strlcpy(ch_entry->src_meta.scmi.scm_devname, name, + sizeof(ch_entry->src_meta.scmi.scm_devname)); + bcopy(&uuid, &ch_entry->src_meta.scmi.scm_uuid, + sizeof(ch_entry->src_meta.scmi.scm_uuid)); + + if (ch_entry->src_meta.scmi.scm_size > max_chunk_sz) + max_chunk_sz = ch_entry->src_meta.scmi.scm_size; + } + + /* get smallest chunk size */ + min_chunk_sz = max_chunk_sz; + SLIST_FOREACH(ch_entry, cl, src_link) + if (ch_entry->src_meta.scmi.scm_size < min_chunk_sz) + min_chunk_sz = ch_entry->src_meta.scmi.scm_size; + + /* equalize all sizes */ + SLIST_FOREACH(ch_entry, cl, src_link) + ch_entry->src_meta.scmi.scm_coerced_size = min_chunk_sz; + + /* whine if chunks are not the same size */ + if (min_chunk_sz != max_chunk_sz) + printf("%s: chunk sizes are not equal; up to %llu blocks " + "wasted per chunk\n", + DEVNAME(sc), max_chunk_sz - min_chunk_sz); +} + +void +sr_meta_init(struct sr_discipline *sd, struct sr_chunk_head *cl) +{ + struct sr_softc *sc = sd->sd_sc; + struct sr_metadata *sm = sd->sd_meta; + struct sr_meta_chunk *im_sc; + struct sr_meta_opt *im_so; + int i, chunk_no; + + DNPRINTF(SR_D_META, "%s: sr_meta_init\n", DEVNAME(sc)); + + if (!sm) + return; + + /* initial metadata */ + sm->ssdi.ssd_magic = SR_MAGIC; + sm->ssdi.ssd_version = SR_META_VERSION; + sm->ssd_ondisk = 0; + sm->ssdi.ssd_flags = sd->sd_meta_flags; + /* get uuid from chunk 0 */ + bcopy(&sd->sd_vol.sv_chunks[0]->src_meta.scmi.scm_uuid, + &sm->ssdi.ssd_uuid, + sizeof(struct sr_uuid)); + + /* volume is filled in createraid */ + + /* add missing chunk bits */ + chunk_no = sm->ssdi.ssd_chunk_no; + for (i = 0; i < chunk_no; i++) { + im_sc = &sd->sd_vol.sv_chunks[i]->src_meta; + im_sc->scmi.scm_volid = sm->ssdi.ssd_volid; + sr_checksum(sc, im_sc, &im_sc->scm_checksum, + sizeof(struct sr_meta_chunk_invariant)); + + /* carry optional meta also in chunk area */ + im_so = &sd->sd_vol.sv_chunks[i]->src_opt; + bzero(im_so, sizeof(*im_so)); + if (sd->sd_type == SR_MD_CRYPTO) { + sm->ssdi.ssd_opt_no = 1; + im_so->somi.som_type = SR_OPT_CRYPTO; + + /* + * copy encrypted key / passphrase into optional + * metadata area + */ + bcopy(&sd->mds.mdd_crypto.scr_meta, + &im_so->somi.som_meta.smm_crypto, + sizeof(im_so->somi.som_meta.smm_crypto)); + + sr_checksum(sc, im_so, im_so->som_checksum, + sizeof(struct sr_meta_opt_invariant)); + } + } +} + +void +sr_meta_save_callback(void *arg1, void *arg2) +{ + struct sr_discipline *sd = arg1; + int s; + + s = splbio(); + + if (sr_meta_save(arg1, SR_META_DIRTY)) + printf("%s: save metadata failed\n", + DEVNAME(sd->sd_sc)); + + sd->sd_must_flush = 0; + splx(s); +} + +int +sr_meta_save(struct sr_discipline *sd, u_int32_t flags) +{ + struct sr_softc *sc = sd->sd_sc; + struct sr_metadata *sm = sd->sd_meta, *m; + struct sr_meta_driver *s; + struct sr_chunk *src; + struct sr_meta_chunk *cm; + struct sr_workunit wu; + struct sr_meta_opt *om; + int i; + + DNPRINTF(SR_D_META, "%s: sr_meta_save %s\n", + DEVNAME(sc), sd->sd_meta->ssd_devname); + + if (!sm) { + printf("%s: no in memory copy of metadata\n", DEVNAME(sc)); + goto bad; + } + + /* meta scratchpad */ + s = &smd[sd->sd_meta_type]; + m = malloc(SR_META_SIZE * 512 , M_DEVBUF, M_ZERO); + if (!m) { + printf("%s: could not allocate metadata scratch area\n", + DEVNAME(sc)); + goto bad; + } + + if (sm->ssdi.ssd_opt_no > 1) + panic("not yet save > 1 optional metadata members"); + + /* from here on out metadata is updated */ +restart: + sm->ssd_ondisk++; + sm->ssd_meta_flags = flags; + bcopy(sm, m, sizeof(*m)); + + for (i = 0; i < sm->ssdi.ssd_chunk_no; i++) { + src = sd->sd_vol.sv_chunks[i]; + cm = (struct sr_meta_chunk *)(m + 1); + bcopy(&src->src_meta, cm + i, sizeof(*cm)); + } + + /* optional metadata */ + om = (struct sr_meta_opt *)(cm + i); + for (i = 0; i < sm->ssdi.ssd_opt_no; i++) { + bcopy(&src->src_opt, om + i, sizeof(*om)); + sr_checksum(sc, om, &om->som_checksum, + sizeof(struct sr_meta_opt_invariant)); + } + + for (i = 0; i < sm->ssdi.ssd_chunk_no; i++) { + src = sd->sd_vol.sv_chunks[i]; + + /* skip disks that are offline */ + if (src->src_meta.scm_status == BIOC_SDOFFLINE) + continue; + + /* calculate metdata checksum for correct chunk */ + m->ssdi.ssd_chunk_id = i; + sr_checksum(sc, m, &m->ssd_checksum, + sizeof(struct sr_meta_invariant)); + +#ifdef SR_DEBUG + DNPRINTF(SR_D_META, "%s: sr_meta_save %s: volid: %d " + "chunkid: %d checksum: ", + DEVNAME(sc), src->src_meta.scmi.scm_devname, + m->ssdi.ssd_volid, m->ssdi.ssd_chunk_id); + + if (sr_debug &= SR_D_META) + sr_checksum_print((u_int8_t *)&m->ssd_checksum); + DNPRINTF(SR_D_META, "\n"); + sr_meta_print(m); +#endif + + /* translate and write to disk */ + if (s->smd_write(sd, src->src_dev_mm, m, NULL /* XXX */)) { + printf("%s: could not write metadata to %s\n", + DEVNAME(sc), src->src_devname); + /* restart the meta write */ + src->src_meta.scm_status = BIOC_SDOFFLINE; + /* XXX recalculate volume status */ + goto restart; + } + } + + bzero(&wu, sizeof(wu)); + wu.swu_fake = 1; + wu.swu_dis = sd; + sd->sd_scsi_sync(&wu); + + free(m, M_DEVBUF); + return (0); +bad: + return (1); +} + +int +sr_meta_read(struct sr_discipline *sd) +{ +#ifdef SR_DEBUG + struct sr_softc *sc = sd->sd_sc; +#endif + struct sr_chunk_head *cl = &sd->sd_vol.sv_chunk_list; + struct sr_metadata *sm; + struct sr_chunk *ch_entry; + struct sr_meta_chunk *cp; + struct sr_meta_driver *s; + struct sr_meta_opt *om; + void *fm = NULL; + int no_disk = 0; + + DNPRINTF(SR_D_META, "%s: sr_meta_read\n", DEVNAME(sc)); + + sm = malloc(SR_META_SIZE * 512, M_DEVBUF, M_WAITOK | M_ZERO); + s = &smd[sd->sd_meta_type]; + if (sd->sd_meta_type != SR_META_F_NATIVE) + fm = malloc(s->smd_size , M_DEVBUF, M_WAITOK | M_ZERO); + + cp = (struct sr_meta_chunk *)(sm + 1); + SLIST_FOREACH(ch_entry, cl, src_link) { + /* read and translate */ + if (s->smd_read(sd, ch_entry->src_dev_mm, sm, fm)) { + /* XXX mark disk offline */ + DNPRINTF(SR_D_META, "%s: sr_meta_read failed\n", + DEVNAME(sc)); + continue; + } + + if (sm->ssdi.ssd_magic != SR_MAGIC) { + DNPRINTF(SR_D_META, "%s: sr_meta_read !SR_MAGIC\n", + DEVNAME(sc)); + continue; + } + + /* validate metadata */ + if (sr_meta_validate(sd, ch_entry->src_dev_mm, sm, fm)) { + DNPRINTF(SR_D_META, "%s: invalid metadata\n", + DEVNAME(sc)); + no_disk = -1; + goto done; + } + + /* assume chunk 0 contains metadata */ + if (no_disk == 0) + bcopy(sm, sd->sd_meta, sizeof(*sd->sd_meta)); + + bcopy(cp, &ch_entry->src_meta, sizeof(ch_entry->src_meta)); + + if (sm->ssdi.ssd_opt_no > 1) + panic("not yet read > 1 optional metadata members"); + + if (sm->ssdi.ssd_opt_no) { + om = (struct sr_meta_opt *) ((u_int8_t *)(sm + 1) + + sizeof(struct sr_meta_chunk) * + sm->ssdi.ssd_chunk_no); + bcopy(om, &ch_entry->src_opt, sizeof(ch_entry->src_opt)); + + if (om->somi.som_type == SR_OPT_CRYPTO) { + bcopy(&ch_entry->src_opt.somi.som_meta.smm_crypto, + &sd->mds.mdd_crypto.scr_meta, + sizeof(sd->mds.mdd_crypto.scr_meta)); + } + + } + + cp++; + no_disk++; + } + + free(sm, M_DEVBUF); + if (fm) + free(fm, M_DEVBUF); + +done: + DNPRINTF(SR_D_META, "%s: sr_meta_read found %d parts\n", DEVNAME(sc), + no_disk); + return (no_disk); +} + +int +sr_meta_validate(struct sr_discipline *sd, dev_t dev, struct sr_metadata *sm, + void *fm) +{ + struct sr_softc *sc = sd->sd_sc; + struct sr_meta_driver *s; + struct sr_meta_chunk *mc; + char devname[32]; + int rv = 1; + u_int8_t checksum[MD5_DIGEST_LENGTH]; + + DNPRINTF(SR_D_META, "%s: sr_meta_validate(%p)\n", DEVNAME(sc), sm); + + sr_meta_getdevname(sc, dev, devname, sizeof(devname)); + + s = &smd[sd->sd_meta_type]; + if (sd->sd_meta_type != SR_META_F_NATIVE) + if (s->smd_validate(sd, sm, fm)) { + printf("%s: invalid foreign metadata\n", DEVNAME(sc)); + goto done; + } + + /* + * at this point all foreign metadata has been translated to the native + * format and will be treated just like the native format + */ + + if (sm->ssdi.ssd_version != SR_META_VERSION) { + printf("%s: %s can not read metadata version %d, expected %d\n", + DEVNAME(sc), devname, sm->ssdi.ssd_version, + SR_META_VERSION); + goto done; + } + + sr_checksum(sc, sm, &checksum, sizeof(struct sr_meta_invariant)); + if (bcmp(&checksum, &sm->ssd_checksum, sizeof(checksum))) { + printf("%s: invalid metadata checksum\n", DEVNAME(sc)); + goto done; + } + + /* XXX do other checksums */ + + /* warn if disk changed order */ + mc = (struct sr_meta_chunk *)(sm + 1); + if (strncmp(mc[sm->ssdi.ssd_chunk_id].scmi.scm_devname, devname, + sizeof(mc[sm->ssdi.ssd_chunk_id].scmi.scm_devname))) + printf("%s: roaming device %s -> %s\n", DEVNAME(sc), + mc[sm->ssdi.ssd_chunk_id].scmi.scm_devname, devname); + + /* we have meta data on disk */ + DNPRINTF(SR_D_META, "%s: sr_meta_validate valid metadata %s\n", + DEVNAME(sc), devname); + + rv = 0; +done: + return (rv); +} + +int +sr_meta_native_bootprobe(struct sr_softc *sc, struct device *dv, + struct sr_metadata_list_head *mlh) +{ + struct bdevsw *bdsw; + struct disklabel label; + struct sr_metadata *md; + struct sr_discipline *fake_sd; + struct sr_metadata_list *mle; + char devname[32]; + dev_t dev, devr; + int error, i, majdev; + int rv = SR_META_NOTCLAIMED; + + DNPRINTF(SR_D_META, "%s: sr_meta_native_bootprobe\n", DEVNAME(sc)); + + majdev = findblkmajor(dv); + if (majdev == -1) + goto done; + dev = MAKEDISKDEV(majdev, dv->dv_unit, RAW_PART); + bdsw = &bdevsw[majdev]; + + /* + * The devices are being opened with S_IFCHR instead of + * S_IFBLK so that the SCSI mid-layer does not whine when + * media is not inserted in certain devices like zip drives + * and such. + */ + + /* open device */ + error = (*bdsw->d_open)(dev, FREAD, S_IFCHR, curproc); + if (error) { + DNPRINTF(SR_D_META, "%s: sr_meta_native_bootprobe open " + "failed\n" , DEVNAME(sc)); + goto done; + } + + /* get disklabel */ + error = (*bdsw->d_ioctl)(dev, DIOCGDINFO, (void *)&label, + FREAD, curproc); + if (error) { + DNPRINTF(SR_D_META, "%s: sr_meta_native_bootprobe ioctl " + "failed\n", DEVNAME(sc)); + error = (*bdsw->d_close)(dev, FREAD, S_IFCHR, curproc); + goto done; + } + + /* we are done, close device */ + error = (*bdsw->d_close)(dev, FREAD, S_IFCHR, curproc); + if (error) { + DNPRINTF(SR_D_META, "%s: sr_meta_native_bootprobe close " + "failed\n", DEVNAME(sc)); + goto done; + } + + md = malloc(SR_META_SIZE * 512 , M_DEVBUF, M_ZERO); + if (md == NULL) { + printf("%s: not enough memory for metadata buffer\n", + DEVNAME(sc)); + goto done; + } + + /* create fake sd to use utility functions */ + fake_sd = malloc(sizeof(struct sr_discipline) , M_DEVBUF, M_ZERO); + if (fake_sd == NULL) { + printf("%s: not enough memory for fake discipline\n", + DEVNAME(sc)); + goto nosd; + } + fake_sd->sd_sc = sc; + fake_sd->sd_meta_type = SR_META_F_NATIVE; + + for (i = 0; i < MAXPARTITIONS; i++) { + if (label.d_partitions[i].p_fstype != FS_RAID) + continue; + + /* open partition */ + devr = MAKEDISKDEV(majdev, dv->dv_unit, i); + error = (*bdsw->d_open)(devr, FREAD, S_IFCHR, curproc); + if (error) { + DNPRINTF(SR_D_META, "%s: sr_meta_native_bootprobe " + "open failed, partition %d\n", + DEVNAME(sc), i); + continue; + } + + if (sr_meta_native_read(fake_sd, devr, md, NULL)) { + printf("%s: native bootprobe could not read native " + "metadata\n", DEVNAME(sc)); + continue; + } + + /* are we a softraid partition? */ + sr_meta_getdevname(sc, devr, devname, sizeof(devname)); + if (sr_meta_validate(fake_sd, devr, md, NULL) == 0) { + if (md->ssdi.ssd_flags & BIOC_SCNOAUTOASSEMBLE) { + DNPRINTF(SR_D_META, "%s: don't save %s\n", + DEVNAME(sc), devname); + } else { + /* XXX fix M_WAITOK, this is boot time */ + mle = malloc(sizeof(*mle), M_DEVBUF, + M_WAITOK | M_ZERO); + bcopy(md, &mle->sml_metadata, + SR_META_SIZE * 512); + mle->sml_mm = devr; + SLIST_INSERT_HEAD(mlh, mle, sml_link); + rv = SR_META_CLAIMED; + } + } + + /* we are done, close partition */ + error = (*bdsw->d_close)(devr, FREAD, S_IFCHR, curproc); + if (error) { + DNPRINTF(SR_D_META, "%s: sr_meta_native_bootprobe " + "close failed\n", DEVNAME(sc)); + continue; + } + } + + free(fake_sd, M_DEVBUF); +nosd: + free(md, M_DEVBUF); +done: + return (rv); +} + +int +sr_boot_assembly(struct sr_softc *sc) +{ + struct device *dv; + struct sr_metadata_list_head mlh; + struct sr_metadata_list *mle, *mle2; + struct sr_metadata *m1, *m2; + struct bioc_createraid bc; + int rv = 0, no_dev; + dev_t *dt = NULL; + + DNPRINTF(SR_D_META, "%s: sr_boot_assembly\n", DEVNAME(sc)); + + SLIST_INIT(&mlh); + + TAILQ_FOREACH(dv, &alldevs, dv_list) { + if (dv->dv_class != DV_DISK) + continue; + + /* XXX is there a better way of excluding some devices? */ + if (!strncmp(dv->dv_xname, "fd", 2) || + !strncmp(dv->dv_xname, "cd", 2) || + !strncmp(dv->dv_xname, "rx", 2)) + continue; + + /* native softraid uses partitions */ + if (sr_meta_native_bootprobe(sc, dv, &mlh) == SR_META_CLAIMED) + continue; + + /* probe non-native disks */ + } + + /* + * XXX poor mans hack that doesn't keep disks in order and does not + * roam disks correctly. replace this with something smarter that + * orders disks by volid, chunkid and uuid. + */ + dt = malloc(BIOC_CRMAXLEN, M_DEVBUF, M_WAITOK); + SLIST_FOREACH(mle, &mlh, sml_link) { + /* chunk used already? */ + if (mle->sml_used) + continue; + + no_dev = 0; + bzero(dt, BIOC_CRMAXLEN); + SLIST_FOREACH(mle2, &mlh, sml_link) { + /* chunk used already? */ + if (mle2->sml_used) + continue; + + m1 = (struct sr_metadata *)&mle->sml_metadata; + m2 = (struct sr_metadata *)&mle2->sml_metadata; + + /* are we the same volume? */ + if (m1->ssdi.ssd_volid != m2->ssdi.ssd_volid) + continue; + + /* same uuid? */ + if (bcmp(&m1->ssdi.ssd_uuid, &m2->ssdi.ssd_uuid, + sizeof(m1->ssdi.ssd_uuid))) + continue; + + /* sanity */ + if (dt[m2->ssdi.ssd_chunk_id]) { + printf("%s: chunk id already in use; can not " + "assemble volume\n", DEVNAME(sc)); + goto unwind; + } + dt[m2->ssdi.ssd_chunk_id] = mle2->sml_mm; + no_dev++; + mle2->sml_used = 1; + } + if (m1->ssdi.ssd_chunk_no != no_dev) { + printf("%s: not assembling partial disk that used to " + "be volume %d\n", DEVNAME(sc), + m1->ssdi.ssd_volid); + continue; + } + + bzero(&bc, sizeof(bc)); + bc.bc_level = m1->ssdi.ssd_level; + bc.bc_dev_list_len = no_dev * sizeof(dev_t); + bc.bc_dev_list = dt; + bc.bc_flags = BIOC_SCDEVT; + sr_ioctl_createraid(sc, &bc, 0); + rv++; + } + + /* done with metadata */ +unwind: + for (mle = SLIST_FIRST(&mlh); mle != SLIST_END(&mlh); mle = mle2) { + mle2 = SLIST_NEXT(mle, sml_link); + free(mle, M_DEVBUF); + } + SLIST_INIT(&mlh); + + if (dt) + free(dt, M_DEVBUF); + + return (rv); +} + +int +sr_meta_native_probe(struct sr_softc *sc, struct sr_chunk *ch_entry) +{ + struct disklabel label; + char *devname; + int error, part; + daddr64_t size; + struct bdevsw *bdsw; + dev_t dev; + + DNPRINTF(SR_D_META, "%s: sr_meta_native_probe(%s)\n", + DEVNAME(sc), ch_entry->src_devname); + + dev = ch_entry->src_dev_mm; + devname = ch_entry->src_devname; + bdsw = bdevsw_lookup(dev); + part = DISKPART(dev); + + /* get disklabel */ + error = bdsw->d_ioctl(dev, DIOCGDINFO, (void *)&label, 0, NULL); + if (error) { + DNPRINTF(SR_D_META, "%s: %s can't obtain disklabel\n", + DEVNAME(sc), devname); + goto unwind; + } + + /* make sure the partition is of the right type */ + if (label.d_partitions[part].p_fstype != FS_RAID) { + DNPRINTF(SR_D_META, + "%s: %s partition not of type RAID (%d)\n", DEVNAME(sc) , + devname, + label.d_partitions[part].p_fstype); + goto unwind; + } + + size = DL_GETPSIZE(&label.d_partitions[part]) - + SR_META_SIZE - SR_META_OFFSET; + if (size <= 0) { + DNPRINTF(SR_D_META, "%s: %s partition too small\n", DEVNAME(sc), + devname); + goto unwind; + } + ch_entry->src_size = size; + + DNPRINTF(SR_D_META, "%s: probe found %s size %d\n", DEVNAME(sc), + devname, size); + + return (SR_META_F_NATIVE); +unwind: + DNPRINTF(SR_D_META, "%s: invalid device: %s\n", DEVNAME(sc), + devname ? devname : "nodev"); + return (SR_META_F_INVALID); +} + +int +sr_meta_native_attach(struct sr_discipline *sd, int force) +{ + struct sr_softc *sc = sd->sd_sc; + struct sr_chunk_head *cl = &sd->sd_vol.sv_chunk_list; + struct sr_metadata *md = NULL; + struct sr_chunk *ch_entry; + struct sr_uuid uuid; + int sr, not_sr, rv = 1, d, expected = -1; + + DNPRINTF(SR_D_META, "%s: sr_meta_native_attach\n", DEVNAME(sc)); + + md = malloc(SR_META_SIZE * 512 , M_DEVBUF, M_ZERO); + if (md == NULL) { + printf("%s: not enough memory for metadata buffer\n", + DEVNAME(sc)); + goto bad; + } + + bzero(&uuid, sizeof uuid); + + sr = not_sr = d = 0; + SLIST_FOREACH(ch_entry, cl, src_link) { + if (sr_meta_native_read(sd, ch_entry->src_dev_mm, md, NULL)) { + printf("%s: could not read native metadata\n", + DEVNAME(sc)); + goto bad; + } + + if (md->ssdi.ssd_magic == SR_MAGIC) { + sr++; + if (d == 0) { + bcopy(&md->ssdi.ssd_uuid, &uuid, sizeof uuid); + expected = md->ssdi.ssd_chunk_no; + continue; + } else if (bcmp(&md->ssdi.ssd_uuid, &uuid, + sizeof uuid)) { + printf("%s: not part of the same volume\n", + DEVNAME(sc)); + goto bad; + } + } else + not_sr++; + + d++; + } + + if (sr && not_sr) { + printf("%s: not all chunks are of the native metadata format", + DEVNAME(sc)); + goto bad; + } + if (expected != sr && !force && expected != -1) { + /* XXX make this smart so that we can bring up degraded disks */ + printf("%s: not all chunks were provided\n", DEVNAME(sc)); + goto bad; + } + + rv = 0; +bad: + if (md) + free(md, M_DEVBUF); + return (rv); +} + +int +sr_meta_native_read(struct sr_discipline *sd, dev_t dev, + struct sr_metadata *md, void *fm) +{ +#ifdef SR_DEBUG + struct sr_softc *sc = sd->sd_sc; +#endif + DNPRINTF(SR_D_META, "%s: sr_meta_native_read(0x%x, %p)\n", + DEVNAME(sc), dev, md); + + return (sr_meta_rw(sd, dev, md, SR_META_SIZE * 512, SR_META_OFFSET, + B_READ)); +} + +int +sr_meta_native_write(struct sr_discipline *sd, dev_t dev, + struct sr_metadata *md, void *fm) +{ +#ifdef SR_DEBUG + struct sr_softc *sc = sd->sd_sc; +#endif + DNPRINTF(SR_D_META, "%s: sr_meta_native_write(0x%x, %p)\n", + DEVNAME(sc), dev, md); + + return (sr_meta_rw(sd, dev, md, SR_META_SIZE * 512, SR_META_OFFSET, + B_WRITE)); +} + +struct scsi_adapter sr_switch = { + sr_scsi_cmd, sr_minphys, NULL, NULL, sr_scsi_ioctl +}; + +struct scsi_device sr_dev = { + NULL, NULL, NULL, NULL +}; + +int +sr_match(struct device *parent, void *match, void *aux) +{ return (1); } @@ -219,7 +1199,7 @@ sr_copy_internal_data(struct scsi_xfer *xs, void *v, size_t size) } int -sr_alloc_ccb(struct sr_discipline *sd) +sr_ccb_alloc(struct sr_discipline *sd) { struct sr_ccb *ccb; int i; @@ -227,7 +1207,7 @@ sr_alloc_ccb(struct sr_discipline *sd) if (!sd) return (1); - DNPRINTF(SR_D_CCB, "%s: sr_alloc_ccb\n", DEVNAME(sd->sd_sc)); + DNPRINTF(SR_D_CCB, "%s: sr_ccb_alloc\n", DEVNAME(sd->sd_sc)); if (sd->sd_ccb) return (1); @@ -238,24 +1218,24 @@ sr_alloc_ccb(struct sr_discipline *sd) for (i = 0; i < sd->sd_max_wu * sd->sd_max_ccb_per_wu; i++) { ccb = &sd->sd_ccb[i]; ccb->ccb_dis = sd; - sr_put_ccb(ccb); + sr_ccb_put(ccb); } - DNPRINTF(SR_D_CCB, "%s: sr_alloc_ccb ccb: %d\n", + DNPRINTF(SR_D_CCB, "%s: sr_ccb_alloc ccb: %d\n", DEVNAME(sd->sd_sc), sd->sd_max_wu * sd->sd_max_ccb_per_wu); return (0); } void -sr_free_ccb(struct sr_discipline *sd) +sr_ccb_free(struct sr_discipline *sd) { struct sr_ccb *ccb; if (!sd) return; - DNPRINTF(SR_D_CCB, "%s: sr_free_ccb %p\n", DEVNAME(sd->sd_sc), sd); + DNPRINTF(SR_D_CCB, "%s: sr_ccb_free %p\n", DEVNAME(sd->sd_sc), sd); while ((ccb = TAILQ_FIRST(&sd->sd_ccb_freeq)) != NULL) TAILQ_REMOVE(&sd->sd_ccb_freeq, ccb, ccb_link); @@ -265,7 +1245,7 @@ sr_free_ccb(struct sr_discipline *sd) } struct sr_ccb * -sr_get_ccb(struct sr_discipline *sd) +sr_ccb_get(struct sr_discipline *sd) { struct sr_ccb *ccb; int s; @@ -280,19 +1260,19 @@ sr_get_ccb(struct sr_discipline *sd) splx(s); - DNPRINTF(SR_D_CCB, "%s: sr_get_ccb: %p\n", DEVNAME(sd->sd_sc), + DNPRINTF(SR_D_CCB, "%s: sr_ccb_get: %p\n", DEVNAME(sd->sd_sc), ccb); return (ccb); } void -sr_put_ccb(struct sr_ccb *ccb) +sr_ccb_put(struct sr_ccb *ccb) { struct sr_discipline *sd = ccb->ccb_dis; int s; - DNPRINTF(SR_D_CCB, "%s: sr_put_ccb: %p\n", DEVNAME(sd->sd_sc), + DNPRINTF(SR_D_CCB, "%s: sr_ccb_put: %p\n", DEVNAME(sd->sd_sc), ccb); s = splbio(); @@ -308,7 +1288,7 @@ sr_put_ccb(struct sr_ccb *ccb) } int -sr_alloc_wu(struct sr_discipline *sd) +sr_wu_alloc(struct sr_discipline *sd) { struct sr_workunit *wu; int i, no_wu; @@ -316,7 +1296,7 @@ sr_alloc_wu(struct sr_discipline *sd) if (!sd) return (1); - DNPRINTF(SR_D_WU, "%s: sr_alloc_wu %p %d\n", DEVNAME(sd->sd_sc), + DNPRINTF(SR_D_WU, "%s: sr_wu_alloc %p %d\n", DEVNAME(sd->sd_sc), sd, sd->sd_max_wu); if (sd->sd_wu) @@ -333,21 +1313,21 @@ sr_alloc_wu(struct sr_discipline *sd) for (i = 0; i < no_wu; i++) { wu = &sd->sd_wu[i]; wu->swu_dis = sd; - sr_put_wu(wu); + sr_wu_put(wu); } return (0); } void -sr_free_wu(struct sr_discipline *sd) +sr_wu_free(struct sr_discipline *sd) { struct sr_workunit *wu; if (!sd) return; - DNPRINTF(SR_D_WU, "%s: sr_free_wu %p\n", DEVNAME(sd->sd_sc), sd); + DNPRINTF(SR_D_WU, "%s: sr_wu_free %p\n", DEVNAME(sd->sd_sc), sd); while ((wu = TAILQ_FIRST(&sd->sd_wu_freeq)) != NULL) TAILQ_REMOVE(&sd->sd_wu_freeq, wu, swu_link); @@ -361,14 +1341,14 @@ sr_free_wu(struct sr_discipline *sd) } void -sr_put_wu(struct sr_workunit *wu) +sr_wu_put(struct sr_workunit *wu) { struct sr_discipline *sd = wu->swu_dis; struct sr_ccb *ccb; int s; - DNPRINTF(SR_D_WU, "%s: sr_put_wu: %p\n", DEVNAME(sd->sd_sc), wu); + DNPRINTF(SR_D_WU, "%s: sr_wu_put: %p\n", DEVNAME(sd->sd_sc), wu); s = splbio(); @@ -385,7 +1365,7 @@ sr_put_wu(struct sr_workunit *wu) while ((ccb = TAILQ_FIRST(&wu->swu_ccb)) != NULL) { TAILQ_REMOVE(&wu->swu_ccb, ccb, ccb_link); - sr_put_ccb(ccb); + sr_ccb_put(ccb); } TAILQ_INIT(&wu->swu_ccb); @@ -396,7 +1376,7 @@ sr_put_wu(struct sr_workunit *wu) } struct sr_workunit * -sr_get_wu(struct sr_discipline *sd) +sr_wu_get(struct sr_discipline *sd) { struct sr_workunit *wu; int s; @@ -412,7 +1392,7 @@ sr_get_wu(struct sr_discipline *sd) splx(s); - DNPRINTF(SR_D_WU, "%s: sr_get_wu: %p\n", DEVNAME(sd->sd_sc), wu); + DNPRINTF(SR_D_WU, "%s: sr_wu_get: %p\n", DEVNAME(sd->sd_sc), wu); return (wu); } @@ -447,11 +1427,11 @@ sr_scsi_cmd(struct scsi_xfer *xs) if (sd->sd_deleted) { printf("%s: %s device is being deleted, failing io\n", - DEVNAME(sc), sd->sd_vol.sv_meta.svm_devname); + DEVNAME(sc), sd->sd_meta->ssd_devname); goto stuffup; } - if ((wu = sr_get_wu(sd)) == NULL) { + if ((wu = sr_wu_get(sd)) == NULL) { DNPRINTF(SR_D_CMD, "%s: sr_scsi_cmd no wu\n", DEVNAME(sc)); return (TRY_AGAIN_LATER); } @@ -537,7 +1517,7 @@ complete: scsi_done(xs); splx(s); if (wu) - sr_put_wu(wu); + sr_wu_put(wu); return (COMPLETE); } int @@ -618,7 +1598,7 @@ sr_ioctl_inq(struct sr_softc *sc, struct bioc_inq *bi) /* XXX this will not work when we stagger disciplines */ if (sc->sc_dis[i]) { vol++; - disk += sc->sc_dis[i]->sd_vol.sv_meta.svm_no_chunk; + disk += sc->sc_dis[i]->sd_meta->ssdi.ssd_chunk_no; } strlcpy(bi->bi_dev, sc->sc_dev.dv_xname, sizeof(bi->bi_dev)); @@ -632,7 +1612,7 @@ int sr_ioctl_vol(struct sr_softc *sc, struct bioc_vol *bv) { int i, vol, rv = EINVAL; - struct sr_volume *sv; + struct sr_discipline *sd; for (i = 0, vol = -1; i < SR_MAXSCSIBUS; i++) { /* XXX this will not work when we stagger disciplines */ @@ -641,14 +1621,14 @@ sr_ioctl_vol(struct sr_softc *sc, struct bioc_vol *bv) if (vol != bv->bv_volid) continue; - sv = &sc->sc_dis[i]->sd_vol; - bv->bv_status = sv->sv_meta.svm_status; - bv->bv_size = sv->sv_meta.svm_size << DEV_BSHIFT; - bv->bv_level = sv->sv_meta.svm_level; - bv->bv_nodisk = sv->sv_meta.svm_no_chunk; - strlcpy(bv->bv_dev, sv->sv_meta.svm_devname, + sd = sc->sc_dis[i]; + bv->bv_status = sd->sd_vol_status; + bv->bv_size = sd->sd_meta->ssdi.ssd_size << DEV_BSHIFT; + bv->bv_level = sd->sd_meta->ssdi.ssd_level; + bv->bv_nodisk = sd->sd_meta->ssdi.ssd_chunk_no; + strlcpy(bv->bv_dev, sd->sd_meta->ssd_devname, sizeof(bv->bv_dev)); - strlcpy(bv->bv_vendor, sv->sv_meta.svm_vendor, + strlcpy(bv->bv_vendor, sd->sd_meta->ssdi.ssd_vendor, sizeof(bv->bv_vendor)); rv = 0; break; @@ -671,15 +1651,15 @@ sr_ioctl_disk(struct sr_softc *sc, struct bioc_disk *bd) continue; id = bd->bd_diskid; - if (id >= sc->sc_dis[i]->sd_vol.sv_meta.svm_no_chunk) + if (id >= sc->sc_dis[i]->sd_meta->ssdi.ssd_chunk_no) break; src = sc->sc_dis[i]->sd_vol.sv_chunks[id]; bd->bd_status = src->src_meta.scm_status; - bd->bd_size = src->src_meta.scm_size << DEV_BSHIFT; + bd->bd_size = src->src_meta.scmi.scm_size << DEV_BSHIFT; bd->bd_channel = vol; bd->bd_target = id; - strlcpy(bd->bd_vendor, src->src_meta.scm_devname, + strlcpy(bd->bd_vendor, src->src_meta.scmi.scm_devname, sizeof(bd->bd_vendor)); rv = 0; break; @@ -705,7 +1685,7 @@ sr_ioctl_setstate(struct sr_softc *sc, struct bioc_setstate *bs) continue; sd = sc->sc_dis[vol]; - if (bs->bs_target >= sd->sd_vol.sv_meta.svm_no_chunk) + if (bs->bs_target >= sd->sd_meta->ssdi.ssd_chunk_no) goto done; switch (bs->bs_status) { @@ -774,47 +1754,44 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) no_chunk = bc->bc_dev_list_len / sizeof(dev_t); cl = &sd->sd_vol.sv_chunk_list; SLIST_INIT(cl); - if (sr_open_chunks(sc, cl, dt, no_chunk)) - goto unwind; - - /* in memory copy of metadata */ - sd->sd_meta = malloc(SR_META_SIZE * 512 , M_DEVBUF, M_WAITOK | M_ZERO); /* we have a valid list now create an array index */ sd->sd_vol.sv_chunks = malloc(sizeof(struct sr_chunk *) * no_chunk, M_DEVBUF, M_WAITOK | M_ZERO); + sd->sd_meta_type = sr_meta_probe(sd, dt, no_chunk); + if (sd->sd_meta_type == SR_META_F_INVALID) { + printf("%s: invalid metadata format\n", DEVNAME(sc)); + goto unwind; + } + + if (sr_meta_attach(sd, bc->bc_flags & BIOC_SCFORCE)) { + printf("%s: can't attach metadata type %d\n", DEVNAME(sc), + sd->sd_meta_type); + goto unwind; + } + /* force the raid volume by clearing metadata region */ if (bc->bc_flags & BIOC_SCFORCE) { /* make sure disk isn't up and running */ - if (sr_read_meta(sd)) + if (sr_meta_read(sd)) if (sr_already_assembled(sd)) { printf("%s: disk ", DEVNAME(sc)); - sr_print_uuid(&sd->sd_meta->ssd_uuid, 0); + sr_uuid_print(&sd->sd_meta->ssdi.ssd_uuid, 0); printf(" is currently in use; can't force " "create\n"); goto unwind; } - /* zero out pointers and metadata again to create disk */ - bzero(sd->sd_vol.sv_chunks, - sizeof(struct sr_chunk *) * no_chunk); - bzero(sd->sd_meta, SR_META_SIZE * 512); - - if (sr_clear_metadata(sd)) { + if (sr_meta_clear(sd)) { printf("%s: failed to clear metadata\n", DEVNAME(sc)); goto unwind; } } - if ((no_meta = sr_read_meta(sd)) == 0) { - /* fill out chunk array */ - i = 0; - SLIST_FOREACH(ch_entry, cl, src_link) - sd->sd_vol.sv_chunks[i++] = ch_entry; - + if ((no_meta = sr_meta_read(sd)) == 0) { /* fill out all chunk metadata */ - sr_create_chunk_meta(sc, cl); + sr_meta_chunks_create(sc, cl); ch_entry = SLIST_FIRST(cl); /* no metadata available */ @@ -830,13 +1807,13 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) */ strip_size = MAXPHYS; vol_size = - ch_entry->src_meta.scm_coerced_size * no_chunk; + ch_entry->src_meta.scmi.scm_coerced_size * no_chunk; break; case 1: if (no_chunk < 2) goto unwind; strlcpy(sd->sd_name, "RAID 1", sizeof(sd->sd_name)); - vol_size = ch_entry->src_meta.scm_coerced_size; + vol_size = ch_entry->src_meta.scmi.scm_coerced_size; break; #ifdef CRYPTO case 'C': @@ -861,7 +1838,7 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) goto unwind; strlcpy(sd->sd_name, "CRYPTO", sizeof(sd->sd_name)); - vol_size = ch_entry->src_meta.scm_size; + vol_size = ch_entry->src_meta.scmi.scm_size; sr_crypto_create_keys(sd); @@ -875,23 +1852,26 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) DNPRINTF(SR_D_IOCTL, "%s: sr_ioctl_createraid: vol_size: %lld\n", DEVNAME(sc), vol_size); - sd->sd_vol.sv_meta.svm_no_chunk = no_chunk; - sd->sd_vol.sv_meta.svm_size = vol_size; - sd->sd_vol.sv_meta.svm_status = BIOC_SVONLINE; - sd->sd_vol.sv_meta.svm_level = bc->bc_level; - sd->sd_vol.sv_meta.svm_strip_size = strip_size; - strlcpy(sd->sd_vol.sv_meta.svm_vendor, "OPENBSD", - sizeof(sd->sd_vol.sv_meta.svm_vendor)); - snprintf(sd->sd_vol.sv_meta.svm_product, - sizeof(sd->sd_vol.sv_meta.svm_product), "SR %s", + sd->sd_meta->ssdi.ssd_chunk_no = no_chunk; + sd->sd_meta->ssdi.ssd_size = vol_size; + sd->sd_vol_status = BIOC_SVONLINE; + sd->sd_meta->ssdi.ssd_level = bc->bc_level; + sd->sd_meta->ssdi.ssd_strip_size = strip_size; + strlcpy(sd->sd_meta->ssdi.ssd_vendor, "OPENBSD", + sizeof(sd->sd_meta->ssdi.ssd_vendor)); + snprintf(sd->sd_meta->ssdi.ssd_product, + sizeof(sd->sd_meta->ssdi.ssd_product), "SR %s", sd->sd_name); - snprintf(sd->sd_vol.sv_meta.svm_revision, - sizeof(sd->sd_vol.sv_meta.svm_revision), "%03d", + snprintf(sd->sd_meta->ssdi.ssd_revision, + sizeof(sd->sd_meta->ssdi.ssd_revision), "%03d", SR_META_VERSION); sd->sd_meta_flags = bc->bc_flags & BIOC_SCNOAUTOASSEMBLE; updatemeta = 1; } else if (no_meta == no_chunk) { + if (sd->sd_meta->ssd_meta_flags & SR_META_DIRTY) + printf("%s: %s was not shutdown properly\n", + DEVNAME(sc), sd->sd_meta->ssd_devname); if (user == 0 && sd->sd_meta_flags & BIOC_SCNOAUTOASSEMBLE) { DNPRINTF(SR_D_META, "%s: disk not auto assembled from " "metadata\n", DEVNAME(sc)); @@ -899,7 +1879,7 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) } if (sr_already_assembled(sd)) { printf("%s: disk ", DEVNAME(sc)); - sr_print_uuid(&sd->sd_meta->ssd_uuid, 0); + sr_uuid_print(&sd->sd_meta->ssdi.ssd_uuid, 0); printf(" already assembled\n"); goto unwind; } @@ -931,10 +1911,14 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) DNPRINTF(SR_D_META, "%s: disk assembled from metadata\n", DEVNAME(sc)); updatemeta = 0; + } else if (no_meta == -1) { + printf("%s: one of the chunks has corrupt metadata; aborting " + "assembly\n", DEVNAME(sc)); + goto unwind; } else { if (sr_already_assembled(sd)) { printf("%s: disk ", DEVNAME(sc)); - sr_print_uuid(&sd->sd_meta->ssd_uuid, 0); + sr_uuid_print(&sd->sd_meta->ssdi.ssd_uuid, 0); printf(" already assembled; will not partial " "assemble it\n"); goto unwind; @@ -950,8 +1934,8 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) /* fill out discipline members */ sd->sd_type = SR_MD_RAID0; sd->sd_max_ccb_per_wu = - (MAXPHYS / sd->sd_vol.sv_meta.svm_strip_size + 1) * - SR_RAID0_NOWU * sd->sd_vol.sv_meta.svm_no_chunk; + (MAXPHYS / sd->sd_meta->ssdi.ssd_strip_size + 1) * + SR_RAID0_NOWU * sd->sd_meta->ssdi.ssd_chunk_no; sd->sd_max_wu = SR_RAID0_NOWU; /* setup discipline pointers */ @@ -1058,16 +2042,29 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) rv = 0; if (updatemeta) { /* fill out remaining volume metadata */ - sd->sd_vol.sv_meta.svm_volid = vol; - strlcpy(sd->sd_vol.sv_meta.svm_devname, dev->dv_xname, - sizeof(sd->sd_vol.sv_meta.svm_devname)); + sd->sd_meta->ssdi.ssd_volid = vol; + strlcpy(sd->sd_meta->ssd_devname, dev->dv_xname, + sizeof(sd->sd_meta->ssd_devname)); + sr_meta_init(sd, cl); + } else { + if (strncmp(sd->sd_meta->ssd_devname, dev->dv_xname, + sizeof(dev->dv_xname))) { + printf("%s: volume %s is roaming, it used to be %s, " + "updating metadata\n", + DEVNAME(sc), dev->dv_xname, + sd->sd_meta->ssd_devname); + + sd->sd_meta->ssdi.ssd_volid = vol; + strlcpy(sd->sd_meta->ssd_devname, dev->dv_xname, + sizeof(sd->sd_meta->ssd_devname)); + } } /* save metadata to disk */ - rv = sr_save_metadata(sd, SR_VOL_DIRTY); + rv = sr_meta_save(sd, SR_META_DIRTY); #ifndef SMALL_KERNEL - if (sr_create_sensors(sd)) + if (sr_sensors_create(sd)) printf("%s: unable to create sensor for %s\n", DEVNAME(sc), dev->dv_xname); else @@ -1080,7 +2077,7 @@ sr_ioctl_createraid(struct sr_softc *sc, struct bioc_createraid *bc, int user) return (rv); unwind: - sr_shutdown_discipline(sd); + sr_discipline_shutdown(sd); return (rv); } @@ -1097,8 +2094,8 @@ sr_ioctl_deleteraid(struct sr_softc *sc, struct bioc_deleteraid *dr) for (i = 0; i < SR_MAXSCSIBUS; i++) if (sc->sc_dis[i]) { - if (!strncmp(sc->sc_dis[i]->sd_vol.sv_meta.svm_devname, dr->bd_dev, - sizeof(sc->sc_dis[i]->sd_vol.sv_meta.svm_devname))) { + if (!strncmp(sc->sc_dis[i]->sd_meta->ssd_devname, dr->bd_dev, + sizeof(sc->sc_dis[i]->sd_meta->ssd_devname))) { sd = sc->sc_dis[i]; break; } @@ -1108,7 +2105,7 @@ sr_ioctl_deleteraid(struct sr_softc *sc, struct bioc_deleteraid *dr) goto bad; sd->sd_deleted = 1; - sd->sd_meta->ssd_flags = BIOC_SCNOAUTOASSEMBLE; + sd->sd_meta->ssdi.ssd_flags = BIOC_SCNOAUTOASSEMBLE; sr_shutdown(sd); rv = 0; @@ -1116,305 +2113,13 @@ bad: return (rv); } -int -sr_open_chunks(struct sr_softc *sc, struct sr_chunk_head *cl, dev_t *dt, - int no_chunk) -{ - struct sr_chunk *ch_entry, *ch_prev = NULL; - struct disklabel label; - struct bdevsw *bdsw; - char *name; - int maj, unit, part, i, error; - daddr64_t size; - dev_t dev; - - DNPRINTF(SR_D_IOCTL, "%s: sr_open_chunks(%d)\n", DEVNAME(sc), no_chunk); - - /* fill out chunk list */ - for (i = 0; i < no_chunk; i++) { - ch_entry = malloc(sizeof(struct sr_chunk), M_DEVBUF, - M_WAITOK | M_ZERO); - /* keep disks in user supplied order */ - if (ch_prev) - SLIST_INSERT_AFTER(ch_prev, ch_entry, src_link); - else - SLIST_INSERT_HEAD(cl, ch_entry, src_link); - ch_prev = ch_entry; - - dev = dt[i]; - maj = major(dev); - part = DISKPART(dev); - unit = DISKUNIT(dev); - bdsw = &bdevsw[maj]; - - name = findblkname(maj); - if (name == NULL) - goto unwind; - - snprintf(ch_entry->src_devname, sizeof(ch_entry->src_devname), - "%s%d%c", name, unit, part + 'a'); - name = ch_entry->src_devname; - - /* open device */ - error = bdsw->d_open(dev, FREAD | FWRITE , S_IFBLK, curproc); - - /* get disklabel */ - error = bdsw->d_ioctl(dev, DIOCGDINFO, (void *)&label, - 0, NULL); - if (error) { - printf("%s: %s can't obtain disklabel\n", - DEVNAME(sc), name); - bdsw->d_close(dev, FWRITE, S_IFBLK, curproc); - goto unwind; - } - - /* make sure the partition is of the right type */ - if (label.d_partitions[part].p_fstype != FS_RAID) { - printf("%s: %s partition not of type RAID (%d)\n", - DEVNAME(sc), name, - label.d_partitions[part].p_fstype); - bdsw->d_close(dev, FWRITE, S_IFBLK, curproc); - goto unwind; - } - - /* get partition size while accounting for metadata! */ - ch_entry->src_size = size = - DL_GETPSIZE(&label.d_partitions[part]) - - SR_META_SIZE - SR_META_OFFSET; - if (size <= 0) { - printf("%s: %s partition too small\n", - DEVNAME(sc), name); - bdsw->d_close(dev, FWRITE, S_IFBLK, curproc); - goto unwind; - } - - - ch_entry->src_dev_mm = dev; /* major/minor */ - - DNPRINTF(SR_D_IOCTL, "%s: found %s size %d\n", DEVNAME(sc), - name, size); - } - - return (0); -unwind: - printf("%s: invalid device: %s\n", DEVNAME(sc), name ? name : "nodev"); - return (1); -} - -int -sr_read_meta(struct sr_discipline *sd) -{ - struct sr_softc *sc = sd->sd_sc; - struct sr_chunk_head *cl = &sd->sd_vol.sv_chunk_list; - struct sr_metadata *sm = sd->sd_meta, *m; - struct sr_chunk *ch_entry; - struct buf b; - struct sr_vol_meta *mv; - struct sr_chunk_meta *mc; - struct sr_opt_meta *mo; - size_t sz = SR_META_SIZE * 512; - int no_chunk = 0; - u_int32_t volid, ondisk = 0, cid; - - DNPRINTF(SR_D_META, "%s: sr_read_meta\n", DEVNAME(sc)); - - m = malloc(sz , M_DEVBUF, M_WAITOK | M_ZERO); - - SLIST_FOREACH(ch_entry, cl, src_link) { - bzero(&b, sizeof(b)); - - b.b_flags = B_READ; - b.b_blkno = SR_META_OFFSET; - b.b_bcount = sz; - b.b_bufsize = sz; - b.b_resid = sz; - b.b_data = (void *)m; - b.b_error = 0; - b.b_proc = curproc; - b.b_dev = ch_entry->src_dev_mm; - b.b_vp = NULL; - b.b_iodone = NULL; - LIST_INIT(&b.b_dep); - bdevsw_lookup(b.b_dev)->d_strategy(&b); - biowait(&b); - - /* XXX mark chunk offline and restart metadata write */ - if (b.b_flags & B_ERROR) { - printf("%s: %s i/o error on block %lld while reading " - "metadata %d\n", DEVNAME(sc), - ch_entry->src_devname, b.b_blkno, b.b_error); - continue; - } - - if (m->ssd_magic != SR_MAGIC) - continue; - - /* validate metadata */ - if (sr_validate_metadata(sc, ch_entry->src_dev_mm, m)) { - printf("%s: invalid metadata\n", DEVNAME(sc)); - no_chunk = -1; - goto bad; - } - - mv = (struct sr_vol_meta *)(m + 1); - mc = (struct sr_chunk_meta *)(mv + 1); - - /* we asssume that the first chunk has the initial metadata */ - if (no_chunk++ == 0) { - bcopy(m, sm, sz); - bcopy(m, sd->sd_meta, sizeof(*sd->sd_meta)); - bcopy(mv, &sd->sd_vol.sv_meta, - sizeof(sd->sd_vol.sv_meta)); - - volid = m->ssd_vd_volid; - sd->sd_meta_flags = sm->ssd_flags; - } - - if (bcmp(&sm->ssd_uuid, &sd->sd_vol.sv_meta.svm_uuid, - sizeof(struct sr_uuid))) { - printf("%s: %s invalid chunk uuid ", - DEVNAME(sc), ch_entry->src_devname); - sr_print_uuid(&sm->ssd_uuid, 0); - printf(", expected "); - sr_print_uuid(&sd->sd_vol.sv_meta.svm_uuid, 1); - no_chunk = -1; - goto bad; - } - - /* we have meta data on disk */ - ch_entry->src_meta_ondisk = 1; - - /* make sure we are part of this vd */ - if (volid != m->ssd_vd_volid) { - printf("%s: %s invalid volume id %d, expected %d\n", - DEVNAME(sc), ch_entry->src_devname, - volid, m->ssd_vd_volid); - no_chunk = -1; - goto bad; - } - - if (m->ssd_chunk_id > m->ssd_chunk_no) { - printf("%s: %s chunk id out of range %d, expected " - "lower than %d\n", DEVNAME(sc), - ch_entry->src_devname, - m->ssd_chunk_id, m->ssd_chunk_no); - no_chunk = -1; - goto bad; - } - - if (sd->sd_vol.sv_chunks[m->ssd_chunk_id]) { - printf("%s: %s chunk id %d already in use\n", - DEVNAME(sc), ch_entry->src_devname, - m->ssd_chunk_id); - no_chunk = -1; - goto bad; - } - - sd->sd_vol.sv_chunks[m->ssd_chunk_id] = ch_entry; - bcopy(mc + m->ssd_chunk_id, &ch_entry->src_meta, - sizeof(ch_entry->src_meta)); - - if (ondisk == 0) { - ondisk = m->ssd_ondisk; - cid = m->ssd_chunk_id; - } - - if (m->ssd_ondisk != ondisk) { - printf("%s: %s chunk id %d contains stale metadata\n", - DEVNAME(sc), ch_entry->src_devname, - m->ssd_ondisk < ondisk ? m->ssd_chunk_id : cid); - no_chunk = -1; - goto bad; - } - - /* XXX fix this check, sd_type isnt filled in yet */ - if (mv->svm_level == 'C') { - mo = (struct sr_opt_meta *)(mc + mv->svm_no_chunk); - if (m->ssd_chunk_id > 1) { - no_chunk = -1; - goto bad; - } - bcopy(&mo->som_meta, - &sd->mds.mdd_crypto.scr_meta, - sizeof(sd->mds.mdd_crypto.scr_meta) - ); - } - } - - if (no_chunk != m->ssd_chunk_no) { - DNPRINTF(SR_D_META, "%s: not enough chunks supplied\n", - DEVNAME(sc)); - no_chunk = -1; - goto bad; - } - - DNPRINTF(SR_D_META, "%s: sr_read_meta: found %d elements\n", - DEVNAME(sc), no_chunk); - - sr_print_metadata(m); - -bad: - /* return nr of chunks that contain metadata */ - free(m, M_DEVBUF); - return (no_chunk); -} - -int -sr_create_chunk_meta(struct sr_softc *sc, struct sr_chunk_head *cl) -{ - struct sr_chunk *ch_entry; - struct sr_uuid uuid; - int rv = 1, cid = 0; - char *name; - u_int64_t max_chunk_sz = 0, min_chunk_sz; - - DNPRINTF(SR_D_IOCTL, "%s: sr_create_chunk_meta\n", DEVNAME(sc)); - - sr_get_uuid(&uuid); - - /* fill out stuff and get largest chunk size while looping */ - SLIST_FOREACH(ch_entry, cl, src_link) { - name = ch_entry->src_devname; - ch_entry->src_meta.scm_size = ch_entry->src_size; - ch_entry->src_meta.scm_chunk_id = cid++; - ch_entry->src_meta.scm_status = BIOC_SDONLINE; - strlcpy(ch_entry->src_meta.scm_devname, name, - sizeof(ch_entry->src_meta.scm_devname)); - bcopy(&uuid, &ch_entry->src_meta.scm_uuid, - sizeof(ch_entry->src_meta.scm_uuid)); - - if (ch_entry->src_meta.scm_size > max_chunk_sz) - max_chunk_sz = ch_entry->src_meta.scm_size; - } - - /* get smallest chunk size */ - min_chunk_sz = max_chunk_sz; - SLIST_FOREACH(ch_entry, cl, src_link) - if (ch_entry->src_meta.scm_size < min_chunk_sz) - min_chunk_sz = ch_entry->src_meta.scm_size; - - /* equalize all sizes */ - SLIST_FOREACH(ch_entry, cl, src_link) - ch_entry->src_meta.scm_coerced_size = min_chunk_sz; - - /* whine if chunks are not the same size */ - if (min_chunk_sz != max_chunk_sz) - printf("%s: chunk sizes are not equal; up to %llu blocks " - "wasted per chunk\n", - DEVNAME(sc), max_chunk_sz - min_chunk_sz); - - rv = 0; - - return (rv); -} - void -sr_unwind_chunks(struct sr_softc *sc, struct sr_chunk_head *cl) +sr_chunks_unwind(struct sr_softc *sc, struct sr_chunk_head *cl) { struct sr_chunk *ch_entry, *ch_next; dev_t dev; - DNPRINTF(SR_D_IOCTL, "%s: sr_unwind_chunks\n", DEVNAME(sc)); + DNPRINTF(SR_D_IOCTL, "%s: sr_chunks_unwind\n", DEVNAME(sc)); if (!cl) return; @@ -1424,7 +2129,8 @@ sr_unwind_chunks(struct sr_softc *sc, struct sr_chunk_head *cl) ch_next = SLIST_NEXT(ch_entry, src_link); dev = ch_entry->src_dev_mm; - + DNPRINTF(SR_D_IOCTL, "%s: sr_chunks_unwind closing: %s\n", + DEVNAME(sc), ch_entry->src_devname); if (dev != NODEV) bdevsw_lookup(dev)->d_close(dev, FWRITE, S_IFBLK, curproc); @@ -1435,7 +2141,7 @@ sr_unwind_chunks(struct sr_softc *sc, struct sr_chunk_head *cl) } void -sr_free_discipline(struct sr_discipline *sd) +sr_discipline_free(struct sr_discipline *sd) { struct sr_softc *sc = sd->sd_sc; int i; @@ -1443,24 +2149,29 @@ sr_free_discipline(struct sr_discipline *sd) if (!sd) return; - DNPRINTF(SR_D_DIS, "%s: sr_free_discipline %s\n", - DEVNAME(sc), sd->sd_vol.sv_meta.svm_devname); - + DNPRINTF(SR_D_DIS, "%s: sr_discipline_free %s\n", + DEVNAME(sc), + sd->sd_meta ? sd->sd_meta->ssd_devname : "nodev"); if (sd->sd_free_resources) sd->sd_free_resources(sd); if (sd->sd_vol.sv_chunks) free(sd->sd_vol.sv_chunks, M_DEVBUF); - free(sd, M_DEVBUF); + if (sd->sd_meta) + free(sd->sd_meta, M_DEVBUF); + if (sd->sd_meta_foreign) + free(sd->sd_meta_foreign, M_DEVBUF); for (i = 0; i < SR_MAXSCSIBUS; i++) if (sc->sc_dis[i] == sd) { sc->sc_dis[i] = NULL; break; } + + free(sd, M_DEVBUF); } void -sr_shutdown_discipline(struct sr_discipline *sd) +sr_discipline_shutdown(struct sr_discipline *sd) { struct sr_softc *sc = sd->sd_sc; int s; @@ -1468,8 +2179,8 @@ sr_shutdown_discipline(struct sr_discipline *sd) if (!sd || !sc) return; - DNPRINTF(SR_D_DIS, "%s: sr_shutdown_discipline %s\n", - DEVNAME(sc), sd->sd_vol.sv_meta.svm_devname); + DNPRINTF(SR_D_DIS, "%s: sr_discipline_shutdown %s\n", DEVNAME(sc), + sd->sd_meta ? sd->sd_meta->ssd_devname : "nodev"); s = splbio(); @@ -1484,16 +2195,16 @@ sr_shutdown_discipline(struct sr_discipline *sd) break; #ifndef SMALL_KERNEL - sr_delete_sensors(sd); + sr_sensors_delete(sd); #endif /* SMALL_KERNEL */ if (sd->sd_scsibus_dev) config_detach(sd->sd_scsibus_dev, DETACH_FORCE); - sr_unwind_chunks(sc, &sd->sd_vol.sv_chunk_list); + sr_chunks_unwind(sc, &sd->sd_vol.sv_chunk_list); if (sd) - sr_free_discipline(sd); + sr_discipline_free(sd); splx(s); } @@ -1513,11 +2224,11 @@ sr_raid_inquiry(struct sr_workunit *wu) inq.version = 2; inq.response_format = 2; inq.additional_length = 32; - strlcpy(inq.vendor, sd->sd_vol.sv_meta.svm_vendor, + strlcpy(inq.vendor, sd->sd_meta->ssdi.ssd_vendor, sizeof(inq.vendor)); - strlcpy(inq.product, sd->sd_vol.sv_meta.svm_product, + strlcpy(inq.product, sd->sd_meta->ssdi.ssd_product, sizeof(inq.product)); - strlcpy(inq.revision, sd->sd_vol.sv_meta.svm_revision, + strlcpy(inq.revision, sd->sd_meta->ssdi.ssd_revision, sizeof(inq.revision)); sr_copy_internal_data(xs, &inq, sizeof(inq)); @@ -1537,16 +2248,16 @@ sr_raid_read_cap(struct sr_workunit *wu) if (xs->cmd->opcode == READ_CAPACITY) { bzero(&rcd, sizeof(rcd)); - if (sd->sd_vol.sv_meta.svm_size > 0xffffffffllu) + if (sd->sd_meta->ssdi.ssd_size > 0xffffffffllu) _lto4b(0xffffffff, rcd.addr); else - _lto4b(sd->sd_vol.sv_meta.svm_size, rcd.addr); + _lto4b(sd->sd_meta->ssdi.ssd_size, rcd.addr); _lto4b(512, rcd.length); sr_copy_internal_data(xs, &rcd, sizeof(rcd)); rv = 0; } else if (xs->cmd->opcode == READ_CAPACITY_16) { bzero(&rcd16, sizeof(rcd16)); - _lto8b(sd->sd_vol.sv_meta.svm_size, rcd16.addr); + _lto8b(sd->sd_meta->ssdi.ssd_size, rcd16.addr); _lto4b(512, rcd16.length); sr_copy_internal_data(xs, &rcd16, sizeof(rcd16)); rv = 0; @@ -1562,14 +2273,14 @@ sr_raid_tur(struct sr_workunit *wu) DNPRINTF(SR_D_DIS, "%s: sr_raid_tur\n", DEVNAME(sd->sd_sc)); - if (sd->sd_vol.sv_meta.svm_status == BIOC_SVOFFLINE) { + if (sd->sd_vol_status == BIOC_SVOFFLINE) { sd->sd_scsi_sense.error_code = SSD_ERRCODE_CURRENT; sd->sd_scsi_sense.flags = SKEY_NOT_READY; sd->sd_scsi_sense.add_sense_code = 0x04; sd->sd_scsi_sense.add_sense_code_qual = 0x11; sd->sd_scsi_sense.extra_len = 4; return (1); - } else if (sd->sd_vol.sv_meta.svm_status == BIOC_SVINVALID) { + } else if (sd->sd_vol_status == BIOC_SVINVALID) { sd->sd_scsi_sense.error_code = SSD_ERRCODE_CURRENT; sd->sd_scsi_sense.flags = SKEY_HARDWARE_ERROR; sd->sd_scsi_sense.add_sense_code = 0x05; @@ -1615,17 +2326,17 @@ sr_raid_start_stop(struct sr_workunit *wu) if (ss->byte2 == 0x00) { /* START */ - if (sd->sd_vol.sv_meta.svm_status == BIOC_SVOFFLINE) { + if (sd->sd_vol_status == BIOC_SVOFFLINE) { /* bring volume online */ /* XXX check to see if volume can be brought online */ - sd->sd_vol.sv_meta.svm_status = BIOC_SVONLINE; + sd->sd_vol_status = BIOC_SVONLINE; } rv = 0; } else /* XXX is this the check? if (byte == 0x01) */ { /* STOP */ - if (sd->sd_vol.sv_meta.svm_status == BIOC_SVONLINE) { + if (sd->sd_vol_status == BIOC_SVONLINE) { /* bring volume offline */ - sd->sd_vol.sv_meta.svm_status = BIOC_SVOFFLINE; + sd->sd_vol_status = BIOC_SVOFFLINE; } rv = 0; } @@ -1687,31 +2398,37 @@ sr_raid_startwu(struct sr_workunit *wu) } } -u_int32_t -sr_checksum(char *s, u_int32_t *p, u_int32_t size) +void +sr_checksum_print(u_int8_t *md5) { - u_int32_t chk = 0; int i; - DNPRINTF(SR_D_MISC, "%s: sr_checksum %p %d\n", s, p, size); + for (i = 0; i < MD5_DIGEST_LENGTH; i++) + printf("%02x", md5[i]); +} - if (size % sizeof(u_int32_t)) - return (0); /* 0 is failure */ +void +sr_checksum(struct sr_softc *sc, void *src, void *md5, u_int32_t len) +{ + MD5_CTX ctx; - for (i = 0; i < size / sizeof(u_int32_t); i++) - chk ^= p[i]; + DNPRINTF(SR_D_MISC, "%s: sr_checksum(%p %p %d)\n", DEVNAME(sc), src, + md5, len); - return (chk); + MD5Init(&ctx); + MD5Update(&ctx, src, len); + MD5Final(md5, &ctx); } void -sr_get_uuid(struct sr_uuid *uuid) +sr_uuid_get(struct sr_uuid *uuid) { + /* XXX replace with idgen32 */ arc4random_buf(uuid->sui_id, sizeof(uuid->sui_id)); } void -sr_print_uuid(struct sr_uuid *uuid, int cr) +sr_uuid_print(struct sr_uuid *uuid, int cr) { int i; @@ -1724,52 +2441,6 @@ sr_print_uuid(struct sr_uuid *uuid, int cr) } int -sr_clear_metadata(struct sr_discipline *sd) -{ - struct sr_softc *sc = sd->sd_sc; - struct sr_chunk_head *cl = &sd->sd_vol.sv_chunk_list; - struct sr_chunk *ch_entry; - struct buf b; - size_t sz = SR_META_SIZE * 512; - void *m; - int rv = 0; - - DNPRINTF(SR_D_META, "%s: sr_clear_metadata\n", DEVNAME(sc)); - - m = malloc(sz , M_DEVBUF, M_WAITOK | M_ZERO); - - SLIST_FOREACH(ch_entry, cl, src_link) { - bzero(&b, sizeof(b)); - - b.b_flags = B_WRITE; - b.b_blkno = SR_META_OFFSET; - b.b_bcount = sz; - b.b_bufsize = sz; - b.b_resid = sz; - b.b_data = (void *)m; - b.b_error = 0; - b.b_proc = curproc; - b.b_dev = ch_entry->src_dev_mm; - b.b_vp = NULL; - b.b_iodone = NULL; - LIST_INIT(&b.b_dep); - bdevsw_lookup(b.b_dev)->d_strategy(&b); - biowait(&b); - - if (b.b_flags & B_ERROR) { - printf("%s: %s i/o error on block %lld while clearing " - "metadata %d\n", DEVNAME(sc), - ch_entry->src_devname, b.b_blkno, b.b_error); - rv++; - continue; - } - } - - free(m, M_DEVBUF); - return (rv); -} - -int sr_already_assembled(struct sr_discipline *sd) { struct sr_softc *sc = sd->sd_sc; @@ -1777,524 +2448,14 @@ sr_already_assembled(struct sr_discipline *sd) for (i = 0; i < SR_MAXSCSIBUS; i++) if (sc->sc_dis[i]) - if (!bcmp(&sd->sd_meta->ssd_uuid, - &sc->sc_dis[i]->sd_meta->ssd_uuid, - sizeof(sd->sd_meta->ssd_uuid))) + if (!bcmp(&sd->sd_meta->ssdi.ssd_uuid, + &sc->sc_dis[i]->sd_meta->ssdi.ssd_uuid, + sizeof(sd->sd_meta->ssdi.ssd_uuid))) return (1); return (0); } -void -sr_save_metadata_callback(void *arg1, void *arg2) -{ - struct sr_discipline *sd = arg1; - int s; - - s = splbio(); - - if (sr_save_metadata(arg1, SR_VOL_DIRTY)) - printf("%s: save metadata failed\n", - DEVNAME(sd->sd_sc)); - - sd->sd_must_flush = 0; - splx(s); -} - -int -sr_save_metadata(struct sr_discipline *sd, u_int32_t flags) -{ - struct sr_softc *sc = sd->sd_sc; - struct sr_metadata *sm = sd->sd_meta; - struct sr_vol_meta *sv = &sd->sd_vol.sv_meta, *im_sv; - struct sr_chunk_meta *im_sc; - struct sr_opt_meta *im_so; - struct sr_chunk *src; - struct buf b; - struct sr_workunit wu; - int i, rv = 1, ch = 0, no_chunk, sz_opt; - size_t sz = SR_META_SIZE * 512; - - DNPRINTF(SR_D_META, "%s: sr_save_metadata %s\n", - DEVNAME(sc), sd->sd_vol.sv_meta.svm_devname); - - if (!sm) { - printf("%s: no in memory copy of metadata\n", DEVNAME(sc)); - goto bad; - } - - im_sv = (struct sr_vol_meta *)(sm + 1); - im_sc = (struct sr_chunk_meta *)(im_sv + 1); - no_chunk = sd->sd_vol.sv_meta.svm_no_chunk; - im_so = (struct sr_opt_meta *)(im_sc + no_chunk); - - /* XXX this is a temporary hack until meta is properly redone */ - if (sd->sd_type == SR_MD_CRYPTO) - sz_opt = sizeof(struct sr_opt_meta); - else - sz_opt = 0; - - if (sizeof(struct sr_metadata) + sizeof(struct sr_vol_meta) + - (sizeof(struct sr_chunk_meta) * no_chunk) + - sz_opt > sz) { - printf("%s: too much metadata; metadata NOT written\n", - DEVNAME(sc)); - goto bad; - } - - if (sm->ssd_magic == 0) { - /* initial metadata */ - sm->ssd_magic = SR_MAGIC; - sm->ssd_version = SR_META_VERSION; - sm->ssd_size = sizeof(struct sr_metadata); - sm->ssd_ondisk = 0; - sm->ssd_flags = sd->sd_meta_flags; - /* get uuid from chunk 0 */ - bcopy(&sd->sd_vol.sv_chunks[0]->src_meta.scm_uuid, - &sm->ssd_uuid, - sizeof(struct sr_uuid)); - - /* volume */ - bcopy(sv, im_sv, sizeof(struct sr_vol_meta)); - bcopy(&sm->ssd_uuid, &im_sv->svm_uuid, - sizeof(im_sv->svm_uuid)); - sm->ssd_vd_ver = SR_VOL_VERSION; - sm->ssd_vd_size = sizeof(struct sr_vol_meta); - - /* chunk */ - for (i = 0; i < no_chunk; i++) - bcopy(sd->sd_vol.sv_chunks[i], &im_sc[i], - sizeof(struct sr_chunk_meta)); - - sm->ssd_chunk_ver = SR_CHUNK_VERSION; - sm->ssd_chunk_size = sizeof(struct sr_chunk_meta); - sm->ssd_chunk_no = no_chunk; - - /* optional */ - sm->ssd_opt_ver = SR_OPT_VERSION; - if (sd->sd_type == SR_MD_CRYPTO) { - bzero(im_so, sizeof(*im_so)); - sm->ssd_opt_size = sizeof(struct sr_opt_meta); - sm->ssd_opt_no = 1; - } else { - sm->ssd_opt_size = 0; - sm->ssd_opt_no = 0; - } - } - - /* from here on out metadata is updated */ - sm->ssd_ondisk++; - im_sv->svm_flags |= flags; - sm->ssd_vd_chk = sr_checksum(DEVNAME(sc), - (u_int32_t *)im_sv, sm->ssd_vd_size); - - sm->ssd_chunk_chk = 0; - for (ch = 0; ch < sm->ssd_chunk_no; ch++) - sm->ssd_chunk_chk ^= sr_checksum(DEVNAME(sc), - (u_int32_t *)&im_sc[ch], sm->ssd_chunk_size); - - /* XXX do checksum on optional meta too */ - - sr_print_metadata(sm); - - for (i = 0; i < sm->ssd_chunk_no; i++) { - memset(&b, 0, sizeof(b)); - - src = sd->sd_vol.sv_chunks[i]; - - /* skip disks that are offline */ - if (src->src_meta.scm_status == BIOC_SDOFFLINE) - continue; - - /* copy encrypted key / passphrase into optinal metadata area */ - if (sd->sd_type == SR_MD_CRYPTO && i < 2) { - im_so->som_type = SR_OPT_CRYPTO; - bcopy(&sd->mds.mdd_crypto.scr_meta, - &im_so->som_meta.smm_crypto, - sizeof(im_so->som_meta.smm_crypto)); - } - - /* calculate metdata checksum and ids */ - sm->ssd_vd_volid = im_sv->svm_volid; - sm->ssd_chunk_id = i; - sm->ssd_checksum = sr_checksum(DEVNAME(sc), - (u_int32_t *)sm, sm->ssd_size); - - DNPRINTF(SR_D_META, "%s: sr_save_metadata %s: volid: %d " - "chunkid: %d checksum: 0x%x\n", - DEVNAME(sc), src->src_meta.scm_devname, - sm->ssd_vd_volid, sm->ssd_chunk_id, - sm->ssd_checksum); - - b.b_flags = B_WRITE; - b.b_blkno = SR_META_OFFSET; - b.b_bcount = sz; - b.b_bufsize = sz; - b.b_resid = sz; - b.b_data = (void *)sm; - b.b_error = 0; - b.b_proc = curproc; - b.b_dev = src->src_dev_mm; - b.b_vp = NULL; - b.b_iodone = NULL; - LIST_INIT(&b.b_dep); - bdevsw_lookup(b.b_dev)->d_strategy(&b); - - biowait(&b); - - /* make sure in memory copy is clean */ - if (sd->sd_type == SR_MD_CRYPTO) - bzero(im_so, sizeof(*im_so)); - sm->ssd_vd_volid = 0; - sm->ssd_chunk_id = 0; - sm->ssd_checksum = 0; - - /* XXX do something smart here */ - /* mark chunk offline and restart metadata write */ - if (b.b_flags & B_ERROR) { - printf("%s: %s i/o error on block %lld while writing " - "metadata %d\n", DEVNAME(sc), - src->src_meta.scm_devname, b.b_blkno, b.b_error); - goto bad; - } - - DNPRINTF(SR_D_META, "%s: sr_save_metadata written to %s\n", - DEVNAME(sc), src->src_meta.scm_devname); - } - - bzero(&wu, sizeof(wu)); - wu.swu_fake = 1; - wu.swu_dis = sd; - sd->sd_scsi_sync(&wu); - - rv = 0; -bad: - return (rv); -} - -int -sr_boot_assembly(struct sr_softc *sc) -{ - struct device *dv; - struct buf *bp; - struct bdevsw *bdsw; - struct disklabel label; - struct sr_metadata *sm; - struct sr_metadata_list_head mlh; - struct sr_metadata_list *mle, *mle2; - struct sr_vol_meta *vm; - struct bioc_createraid bc; - dev_t dev, devr, *dt = NULL; - int error, majdev, i, no_dev, rv = 0; - size_t sz = SR_META_SIZE * 512; - - DNPRINTF(SR_D_META, "%s: sr_boot_assembly\n", DEVNAME(sc)); - - SLIST_INIT(&mlh); - bp = geteblk(sz); - if (!bp) - return (ENOMEM); - - TAILQ_FOREACH(dv, &alldevs, dv_list) { - if (dv->dv_class != DV_DISK) - continue; - - majdev = findblkmajor(dv); - if (majdev == -1) - continue; - - bp->b_dev = dev = MAKEDISKDEV(majdev, dv->dv_unit, RAW_PART); - bdsw = &bdevsw[majdev]; - - /* XXX is there a better way of excluding some devices? */ - if (!strncmp(dv->dv_xname, "fd", 2) || - !strncmp(dv->dv_xname, "cd", 2) || - !strncmp(dv->dv_xname, "rx", 2)) - continue; - /* - * The devices are being opened with S_IFCHR instead of - * S_IFBLK so that the SCSI mid-layer does not whine when - * media is not inserted in certain devices like zip drives - * and such. - */ - - /* open device */ - error = (*bdsw->d_open)(dev, FREAD, S_IFCHR, curproc); - if (error) { - DNPRINTF(SR_D_META, "%s: sr_boot_assembly open failed" - "\n", DEVNAME(sc)); - continue; - } - - /* get disklabel */ - error = (*bdsw->d_ioctl)(dev, DIOCGDINFO, (void *)&label, - FREAD, curproc); - if (error) { - DNPRINTF(SR_D_META, "%s: sr_boot_assembly ioctl " - "failed\n", DEVNAME(sc)); - error = (*bdsw->d_close)(dev, FREAD, S_IFCHR, curproc); - continue; - } - - /* we are done, close device */ - error = (*bdsw->d_close)(dev, FREAD, S_IFCHR, curproc); - if (error) { - DNPRINTF(SR_D_META, "%s: sr_boot_assembly close " - "failed\n", DEVNAME(sc)); - continue; - } - - /* are we a softraid partition? */ - for (i = 0; i < MAXPARTITIONS; i++) { - if (label.d_partitions[i].p_fstype != FS_RAID) - continue; - - /* open device */ - bp->b_dev = devr = MAKEDISKDEV(majdev, dv->dv_unit, i); - error = (*bdsw->d_open)(devr, FREAD, S_IFCHR, curproc); - if (error) { - DNPRINTF(SR_D_META, "%s: sr_boot_assembly " - "open failed, partition %d\n", - DEVNAME(sc), i); - continue; - } - /* read metadat */ - bp->b_flags = B_BUSY | B_READ; - bp->b_blkno = SR_META_OFFSET; - bp->b_cylinder = 0; - bp->b_bcount = sz; - bp->b_bufsize = sz; - bp->b_resid = sz; - (*bdsw->d_strategy)(bp); - if ((error = biowait(bp))) { - DNPRINTF(SR_D_META, "%s: sr_boot_assembly " - "strategy failed, partition %d\n", - DEVNAME(sc)); - error = (*bdsw->d_close)(devr, FREAD, S_IFCHR, - curproc); - continue; - } - - sm = (struct sr_metadata *)bp->b_data; - if (!sr_validate_metadata(sc, devr, sm)) { - /* we got one; save it off */ - mle = malloc(sizeof(*mle), M_DEVBUF, - M_WAITOK | M_ZERO); - mle->sml_metadata = malloc(sz, M_DEVBUF, - M_WAITOK | M_ZERO); - bcopy(sm, mle->sml_metadata, sz); - mle->sml_mm = devr; - SLIST_INSERT_HEAD(&mlh, mle, sml_link); - } - - /* we are done, close device */ - error = (*bdsw->d_close)(devr, FREAD, S_IFCHR, - curproc); - if (error) { - DNPRINTF(SR_D_META, "%s: sr_boot_assembly " - "close failed\n", DEVNAME(sc)); - continue; - } - } - } - - /* - * XXX poor mans hack that doesn't keep disks in order and does not - * roam disks correctly. replace this with something smarter that - * orders disks by volid, chunkid and uuid. - */ - dt = malloc(BIOC_CRMAXLEN, M_DEVBUF, M_WAITOK); - SLIST_FOREACH(mle, &mlh, sml_link) { - /* chunk used already? */ - if (mle->sml_used) - continue; - - no_dev = 0; - bzero(dt, BIOC_CRMAXLEN); - SLIST_FOREACH(mle2, &mlh, sml_link) { - /* chunk used already? */ - if (mle2->sml_used) - continue; - - /* are we the same volume? */ - if (mle->sml_metadata->ssd_vd_volid != - mle2->sml_metadata->ssd_vd_volid) - continue; - - /* same uuid? */ - if (bcmp(&mle->sml_metadata->ssd_uuid, - &mle2->sml_metadata->ssd_uuid, - sizeof(mle->sml_metadata->ssd_uuid))) - continue; - - /* sanity */ - if (dt[mle2->sml_metadata->ssd_chunk_id]) { - printf("%s: chunk id already in use; can not " - "assemble volume\n", DEVNAME(sc)); - goto unwind; - } - dt[mle2->sml_metadata->ssd_chunk_id] = mle2->sml_mm; - no_dev++; - mle2->sml_used = 1; - } - if (mle->sml_metadata->ssd_chunk_no != no_dev) { - printf("%s: not assembling partial disk that used to " - "be volume %d\n", DEVNAME(sc), - mle->sml_metadata->ssd_vd_volid); - continue; - } - - bzero(&bc, sizeof(bc)); - vm = (struct sr_vol_meta *)(mle->sml_metadata + 1); - bc.bc_level = vm->svm_level; - bc.bc_dev_list_len = no_dev * sizeof(dev_t); - bc.bc_dev_list = dt; - bc.bc_flags = BIOC_SCDEVT; - sr_ioctl_createraid(sc, &bc, 0); - rv++; - } - -unwind: - if (dt) - free(dt, M_DEVBUF); - - for (mle = SLIST_FIRST(&mlh); mle != SLIST_END(&mlh); mle = mle2) { - mle2 = SLIST_NEXT(mle, sml_link); - - free(mle->sml_metadata, M_DEVBUF); - free(mle, M_DEVBUF); - } - SLIST_INIT(&mlh); - - return (rv); -} - -int -sr_validate_metadata(struct sr_softc *sc, dev_t dev, struct sr_metadata *sm) -{ - struct sr_vol_meta *mv; - struct sr_chunk_meta *mc; - char *name, devname[32]; - int maj, part, unit; - u_int32_t chk; - - DNPRINTF(SR_D_META, "%s: sr_validate_metadata(0x%x)\n", - DEVNAME(sc), dev); - - bzero(devname, sizeof(devname)); - - if (sm->ssd_magic != SR_MAGIC) - goto bad; - - maj = major(dev); - part = DISKPART(dev); - unit = DISKUNIT(dev); - - name = findblkname(maj); - if (name == NULL) - goto bad; - - snprintf(devname, sizeof(devname), - "%s%d%c", name, unit, part + 'a'); - name = devname; - - /* validate metadata */ - if (sm->ssd_version != SR_META_VERSION) { - printf("%s: %s can not read metadata version %d, " - "expected %d\n", DEVNAME(sc), - devname, sm->ssd_version, - SR_META_VERSION); - goto bad; - } - if (sm->ssd_size != sizeof(struct sr_metadata)) { - printf("%s: %s invalid metadata size %d, " - "expected %d\n", DEVNAME(sc), - devname, sm->ssd_size, - sizeof(struct sr_metadata)); - goto bad; - } - chk = sr_checksum(DEVNAME(sc), (u_int32_t *)sm, sm->ssd_size); - /* - * since the checksum value is part of the checksum a good - * result equals 0 - */ - if (chk != 0) { - printf("%s: %s invalid metadata checksum 0x%x, " - "expected 0x%x\n", DEVNAME(sc), - devname, sm->ssd_checksum, chk); - goto bad; - } - - /* validate volume metadata */ - if (sm->ssd_vd_ver != SR_VOL_VERSION) { - printf("%s: %s can not read volume metadata version " - "%d, expected %d\n", DEVNAME(sc), - devname, sm->ssd_vd_ver, - SR_VOL_VERSION); - goto bad; - } - if (sm->ssd_vd_size != sizeof(struct sr_vol_meta)) { - printf("%s: %s invalid volume metadata size %d, " - "expected %d\n", DEVNAME(sc), - devname, sm->ssd_vd_size, - sizeof(struct sr_vol_meta)); - goto bad; - } - mv = (struct sr_vol_meta *)(sm + 1); - chk = sr_checksum(DEVNAME(sc), (u_int32_t *)mv, sm->ssd_vd_size); - if (chk != sm->ssd_vd_chk) { - printf("%s: %s invalid volume metadata checksum 0x%x, " - "expected 0x%x\n", DEVNAME(sc), - devname, sm->ssd_vd_chk, chk); - goto bad; - } - - /* validate chunk metadata */ - if (sm->ssd_chunk_ver != SR_CHUNK_VERSION) { - printf("%s: %s can not read chunk metadata version " - "%d, expected %d\n", DEVNAME(sc), - devname, sm->ssd_chunk_ver, - SR_CHUNK_VERSION); - goto bad; - } - if (sm->ssd_chunk_size != sizeof(struct sr_chunk_meta)) { - printf("%s: %s invalid chunk metadata size %d, " - "expected %d\n", DEVNAME(sc), - devname, sm->ssd_chunk_size, - sizeof(struct sr_chunk_meta)); - goto bad; - } - - mc = (struct sr_chunk_meta *)(mv + 1); - /* checksum is calculated over ALL chunks */ - chk = sr_checksum(DEVNAME(sc), (u_int32_t *)(mc), - sm->ssd_chunk_size * sm->ssd_chunk_no); - - if (chk != sm->ssd_chunk_chk) { - printf("%s: %s invalid chunk metadata checksum 0x%x, " - "expected 0x%x\n", DEVNAME(sc), - devname, sm->ssd_chunk_chk, chk); - goto bad; - } - - /* warn if disk changed order */ - if (strncmp(mc[sm->ssd_chunk_id].scm_devname, name, - sizeof(mc[sm->ssd_chunk_id].scm_devname))) - printf("%s: roaming device %s -> %s\n", DEVNAME(sc), - mc[sm->ssd_chunk_id].scm_devname, name); - - /* we have meta data on disk */ - DNPRINTF(SR_D_META, "%s: sr_validate_metadata valid metadata %s\n", - DEVNAME(sc), devname); - - return (0); -bad: - DNPRINTF(SR_D_META, "%s: sr_validate_metadata invalid metadata %s\n", - DEVNAME(sc), devname); - - return (1); -} - int32_t sr_validate_stripsize(u_int32_t b) { @@ -2324,11 +2485,11 @@ sr_shutdown(void *arg) struct sr_softc *sc = sd->sd_sc; #endif DNPRINTF(SR_D_DIS, "%s: sr_shutdown %s\n", - DEVNAME(sc), sd->sd_vol.sv_meta.svm_devname); + DEVNAME(sc), sd->sd_meta->ssd_devname); - sr_save_metadata(sd, 0); + sr_meta_save(sd, 0); - sr_shutdown_discipline(sd); + sr_discipline_shutdown(sd); } int @@ -2341,7 +2502,7 @@ sr_validate_io(struct sr_workunit *wu, daddr64_t *blk, char *func) DNPRINTF(SR_D_DIS, "%s: %s 0x%02x\n", DEVNAME(sd->sd_sc), func, xs->cmd->opcode); - if (sd->sd_vol.sv_meta.svm_status == BIOC_SVOFFLINE) { + if (sd->sd_vol_status == BIOC_SVOFFLINE) { DNPRINTF(SR_D_DIS, "%s: %s device offline\n", DEVNAME(sd->sd_sc)); goto bad; @@ -2349,7 +2510,7 @@ sr_validate_io(struct sr_workunit *wu, daddr64_t *blk, char *func) if (xs->datalen == 0) { printf("%s: %s: illegal block count\n", - DEVNAME(sd->sd_sc), func, sd->sd_vol.sv_meta.svm_devname); + DEVNAME(sd->sd_sc), func, sd->sd_meta->ssd_devname); goto bad; } @@ -2361,14 +2522,14 @@ sr_validate_io(struct sr_workunit *wu, daddr64_t *blk, char *func) *blk = _3btol(((struct scsi_rw *)xs->cmd)->addr); else { printf("%s: %s: illegal cmdlen\n", DEVNAME(sd->sd_sc), func, - sd->sd_vol.sv_meta.svm_devname); + sd->sd_meta->ssd_devname); goto bad; } wu->swu_blk_start = *blk; wu->swu_blk_end = *blk + (xs->datalen >> DEV_BSHIFT) - 1; - if (wu->swu_blk_end > sd->sd_vol.sv_meta.svm_size) { + if (wu->swu_blk_end > sd->sd_meta->ssdi.ssd_size) { DNPRINTF(SR_D_DIS, "%s: %s out of bounds start: %lld " "end: %lld length: %d\n", DEVNAME(sd->sd_sc), func, wu->swu_blk_start, @@ -2422,26 +2583,26 @@ queued: #ifndef SMALL_KERNEL int -sr_create_sensors(struct sr_discipline *sd) +sr_sensors_create(struct sr_discipline *sd) { struct sr_softc *sc = sd->sd_sc; int rv = 1; - DNPRINTF(SR_D_STATE, "%s: %s: sr_create_sensors\n", - DEVNAME(sc), sd->sd_vol.sv_meta.svm_devname); + DNPRINTF(SR_D_STATE, "%s: %s: sr_sensors_create\n", + DEVNAME(sc), sd->sd_meta->ssd_devname); strlcpy(sd->sd_vol.sv_sensordev.xname, DEVNAME(sc), sizeof(sd->sd_vol.sv_sensordev.xname)); sd->sd_vol.sv_sensor.type = SENSOR_DRIVE; sd->sd_vol.sv_sensor.status = SENSOR_S_UNKNOWN; - strlcpy(sd->sd_vol.sv_sensor.desc, sd->sd_vol.sv_meta.svm_devname, + strlcpy(sd->sd_vol.sv_sensor.desc, sd->sd_meta->ssd_devname, sizeof(sd->sd_vol.sv_sensor.desc)); sensor_attach(&sd->sd_vol.sv_sensordev, &sd->sd_vol.sv_sensor); if (sc->sc_sensors_running == 0) { - if (sensor_task_register(sc, sr_refresh_sensors, 10) == NULL) + if (sensor_task_register(sc, sr_sensors_refresh, 10) == NULL) goto bad; sc->sc_sensors_running = 1; } @@ -2453,35 +2614,37 @@ bad: } void -sr_delete_sensors(struct sr_discipline *sd) +sr_sensors_delete(struct sr_discipline *sd) { #ifdef SR_DEBUG struct sr_softc *sc = sd->sd_sc; #endif - DNPRINTF(SR_D_STATE, "%s: %s: sr_delete_sensors\n", - DEVNAME(sc), sd->sd_vol.sv_meta.svm_devname); + DNPRINTF(SR_D_STATE, "%s: %s: sr_sensors_delete\n", + DEVNAME(sc), sd->sd_meta->ssd_devname); if (sd->sd_vol.sv_sensor_valid) sensordev_deinstall(&sd->sd_vol.sv_sensordev); } void -sr_refresh_sensors(void *arg) +sr_sensors_refresh(void *arg) { struct sr_softc *sc = arg; - int i, vol; struct sr_volume *sv; + struct sr_discipline *sd; + int i, vol; - DNPRINTF(SR_D_STATE, "%s: sr_refresh_sensors\n", DEVNAME(sc)); + DNPRINTF(SR_D_STATE, "%s: sr_sensors_refresh\n", DEVNAME(sc)); for (i = 0, vol = -1; i < SR_MAXSCSIBUS; i++) { /* XXX this will not work when we stagger disciplines */ if (!sc->sc_dis[i]) continue; - sv = &sc->sc_dis[i]->sd_vol; + sd = sc->sc_dis[i]; + sv = &sd->sd_vol; - switch(sv->sv_meta.svm_status) { + switch(sd->sd_vol_status) { case BIOC_SVOFFLINE: sv->sv_sensor.value = SENSOR_DRIVE_FAIL; sv->sv_sensor.status = SENSOR_S_CRIT; @@ -2535,7 +2698,7 @@ sr_print_stats(void) sd = sc->sc_dis[i]; printf("%s: ios pending: %d collisions %llu\n", - sd->sd_vol.sv_meta.svm_devname, + sd->sd_meta->ssd_devname, sd->sd_wu_pending, sd->sd_wu_collisions); } @@ -2544,73 +2707,58 @@ sr_print_stats(void) #ifdef SR_DEBUG void -sr_print_metadata(struct sr_metadata *sm) +sr_meta_print(struct sr_metadata *m) { - struct sr_vol_meta *im_sv; - struct sr_chunk_meta *im_sc; - struct sr_opt_meta *im_so; - int ch; + int i; + struct sr_meta_chunk *mc; + struct sr_meta_opt *mo; if (!(sr_debug & SR_D_META)) return; - im_sv = (struct sr_vol_meta *)(sm + 1); - im_sc = (struct sr_chunk_meta *)(im_sv + 1); - im_so = (struct sr_opt_meta *)(im_sc + im_sv->svm_no_chunk); - - DNPRINTF(SR_D_META, "\tmeta magic 0x%llx\n", sm->ssd_magic); - DNPRINTF(SR_D_META, "\tmeta version %d\n", sm->ssd_version); - DNPRINTF(SR_D_META, "\tmeta checksum 0x%x\n", sm->ssd_checksum); - DNPRINTF(SR_D_META, "\tmeta size %d\n", sm->ssd_size); - DNPRINTF(SR_D_META, "\tmeta on disk version %u\n", sm->ssd_ondisk); - DNPRINTF(SR_D_META, "\tmeta uuid "); - sr_print_uuid(&sm->ssd_uuid, 1); - DNPRINTF(SR_D_META, "\tvd version %d\n", sm->ssd_vd_ver); - DNPRINTF(SR_D_META, "\tvd size %lu\n", sm->ssd_vd_size); - DNPRINTF(SR_D_META, "\tvd id %u\n", sm->ssd_vd_volid); - DNPRINTF(SR_D_META, "\tvd checksum 0x%x\n", sm->ssd_vd_chk); - DNPRINTF(SR_D_META, "\tchunk version %d\n", sm->ssd_chunk_ver); - DNPRINTF(SR_D_META, "\tchunks %d\n", sm->ssd_chunk_no); - DNPRINTF(SR_D_META, "\tchunk size %u\n", sm->ssd_chunk_size); - DNPRINTF(SR_D_META, "\tchunk id %u\n", sm->ssd_chunk_id); - DNPRINTF(SR_D_META, "\tchunk checksum 0x%x\n", sm->ssd_chunk_chk); - if (sm->ssd_opt_no) { - DNPRINTF(SR_D_META, "\topt version %d\n", sm->ssd_opt_ver); - DNPRINTF(SR_D_META, "\topt items %d\n", sm->ssd_opt_no); - DNPRINTF(SR_D_META, "\topt size %d\n", sm->ssd_opt_size); - DNPRINTF(SR_D_META, "\topt chk 0x%x\n", sm->ssd_opt_chk); - } - - - DNPRINTF(SR_D_META, "\t\tvol id %d\n", im_sv->svm_volid); - DNPRINTF(SR_D_META, "\t\tvol status %d\n", im_sv->svm_status); - DNPRINTF(SR_D_META, "\t\tvol flags 0x%x\n", im_sv->svm_flags); - DNPRINTF(SR_D_META, "\t\tvol level %d\n", im_sv->svm_level); - DNPRINTF(SR_D_META, "\t\tvol size %lld\n", im_sv->svm_size); - DNPRINTF(SR_D_META, "\t\tvol name %s\n", im_sv->svm_devname); - DNPRINTF(SR_D_META, "\t\tvol vendor %s\n", im_sv->svm_vendor); - DNPRINTF(SR_D_META, "\t\tvol prod %s\n", im_sv->svm_product); - DNPRINTF(SR_D_META, "\t\tvol rev %s\n", im_sv->svm_revision); - DNPRINTF(SR_D_META, "\t\tvol no chunks %d\n", im_sv->svm_no_chunk); - DNPRINTF(SR_D_META, "\t\tvol uuid "); - sr_print_uuid(& im_sv->svm_uuid, 1); - DNPRINTF(SR_D_META, "\t\tvol stripsize %d\n", im_sv->svm_strip_size); - - for (ch = 0; ch < im_sv->svm_no_chunk; ch++) { - DNPRINTF(SR_D_META, "\t\t\tchunk vol id %d\n", - im_sc[ch].scm_volid); - DNPRINTF(SR_D_META, "\t\t\tchunk id %d\n", - im_sc[ch].scm_chunk_id); - DNPRINTF(SR_D_META, "\t\t\tchunk status %d\n", - im_sc[ch].scm_status); - DNPRINTF(SR_D_META, "\t\t\tchunk name %s\n", - im_sc[ch].scm_devname); - DNPRINTF(SR_D_META, "\t\t\tchunk size %lld\n", - im_sc[ch].scm_size); - DNPRINTF(SR_D_META, "\t\t\tchunk coerced size %lld\n", - im_sc[ch].scm_coerced_size); - DNPRINTF(SR_D_META, "\t\t\tchunk uuid "); - sr_print_uuid(&im_sc[ch].scm_uuid, 1); + printf("\tssd_magic 0x%llx\n", m->ssdi.ssd_magic); + printf("\tssd_version %d\n", m->ssdi.ssd_version); + printf("\tssd_flags 0x%x\n", m->ssdi.ssd_flags); + printf("\tssd_uuid "); + sr_uuid_print(&m->ssdi.ssd_uuid, 1); + printf("\tssd_chunk_no %d\n", m->ssdi.ssd_chunk_no); + printf("\tssd_chunk_id %d\n", m->ssdi.ssd_chunk_id); + printf("\tssd_opt_no %d\n", m->ssdi.ssd_opt_no); + printf("\tssd_volid %d\n", m->ssdi.ssd_volid); + printf("\tssd_level %d\n", m->ssdi.ssd_level); + printf("\tssd_level %lld\n", m->ssdi.ssd_size); + printf("\tssd_devname %s\n", m->ssd_devname); + printf("\tssd_vendor %s\n", m->ssdi.ssd_vendor); + printf("\tssd_product %s\n", m->ssdi.ssd_product); + printf("\tssd_revision %s\n", m->ssdi.ssd_revision); + printf("\tssd_strip_size %d\n", m->ssdi.ssd_strip_size); + printf("\tssd_checksum "); + sr_checksum_print(m->ssd_checksum); + printf("\n"); + printf("\tssd_meta_flags 0x%x\n", m->ssd_meta_flags); + printf("\tssd_ondisk %llu\n", m->ssd_ondisk); + + mc = (struct sr_meta_chunk *)(m + 1); + for (i = 0; i < m->ssdi.ssd_chunk_no; i++, mc++) { + printf("\t\tscm_volid %d\n", mc->scmi.scm_volid); + printf("\t\tscm_chunk_id %d\n", mc->scmi.scm_chunk_id); + printf("\t\tscm_devname %s\n", mc->scmi.scm_devname); + printf("\t\tscm_size %lld\n", mc->scmi.scm_size); + printf("\t\tscm_coerced_size %lld\n",mc->scmi.scm_coerced_size); + printf("\t\tscm_uuid "); + sr_uuid_print(&mc->scmi.scm_uuid, 1); + printf("\t\tscm_checksum "); + sr_checksum_print(mc->scm_checksum); + printf("\n"); + printf("\t\tscm_status %d\n", mc->scm_status); + } + + mo = (struct sr_meta_opt *)(mc); + for (i = 0; i < m->ssdi.ssd_opt_no; i++, mo++) { + printf("\t\t\tsom_type %d\n", mo->somi.som_type); + printf("\t\t\tsom_checksum "); + sr_checksum_print(mo->som_checksum); + printf("\n"); } } |