X-Git-Url: https://git.whamcloud.com/?p=fs%2Flustre-release.git;a=blobdiff_plain;f=lustre%2Fofd%2Fofd_obd.c;h=ec13b717d19ce1861ec889873c842742a6935a17;hp=7dd939011343e8f2851d076726d0cf31dbb0e65d;hb=0aae1984fb496449d6011ad09f967d71a0af0279;hpb=2fab4932f388da3ada7a9d68d862f9637fca5f10 diff --git a/lustre/ofd/ofd_obd.c b/lustre/ofd/ofd_obd.c index 7dd9390..ec13b71 100644 --- a/lustre/ofd/ofd_obd.c +++ b/lustre/ofd/ofd_obd.c @@ -43,6 +43,624 @@ #define DEBUG_SUBSYSTEM S_FILTER #include "ofd_internal.h" +#include + +static int ofd_export_stats_init(struct ofd_device *ofd, + struct obd_export *exp, void *client_nid) +{ + struct obd_device *obd = ofd_obd(ofd); + struct nid_stat *stats; + int num_stats, i; + int rc, newnid = 0; + + ENTRY; + + if (obd_uuid_equals(&exp->exp_client_uuid, &obd->obd_uuid)) + /* Self-export gets no proc entry */ + RETURN(0); + + rc = lprocfs_exp_setup(exp, client_nid, &newnid); + if (rc) { + /* Mask error for already created + * /proc entries */ + if (rc == -EALREADY) + rc = 0; + RETURN(rc); + } + + if (newnid == 0) + RETURN(0); + + stats = exp->exp_nid_stats; + LASSERT(stats != NULL); + + OBD_ALLOC(stats->nid_brw_stats, sizeof(struct brw_stats)); + if (stats->nid_brw_stats == NULL) + GOTO(clean, rc = -ENOMEM); + + for (i = 0; i < BRW_LAST; i++) + cfs_spin_lock_init(&stats->nid_brw_stats->hist[i].oh_lock); + + rc = lprocfs_seq_create(stats->nid_proc, "brw_stats", 0644, + &ofd_per_nid_stats_fops, stats); + if (rc) + CWARN("Error adding the brw_stats file\n"); + + num_stats = (sizeof(*obd->obd_type->typ_dt_ops) / sizeof(void *)) + + LPROC_OFD_LAST - 1; + + stats->nid_stats = lprocfs_alloc_stats(num_stats, + LPROCFS_STATS_FLAG_NOPERCPU); + if (stats->nid_stats == NULL) + return -ENOMEM; + + lprocfs_init_ops_stats(LPROC_OFD_LAST, stats->nid_stats); + lprocfs_counter_init(stats->nid_stats, LPROC_OFD_READ_BYTES, + LPROCFS_CNTR_AVGMINMAX, "read_bytes", "bytes"); + lprocfs_counter_init(stats->nid_stats, LPROC_OFD_WRITE_BYTES, + LPROCFS_CNTR_AVGMINMAX, "write_bytes", "bytes"); + + rc = lprocfs_register_stats(stats->nid_proc, "stats", + stats->nid_stats); + if (rc) + GOTO(clean, rc); + + rc = lprocfs_nid_ldlm_stats_init(stats); + if (rc) { + lprocfs_free_stats(&stats->nid_stats); + GOTO(clean, rc); + } + + RETURN(0); +clean: + return rc; +} + +static int ofd_parse_connect_data(const struct lu_env *env, + struct obd_export *exp, + struct obd_connect_data *data) +{ + struct ofd_device *ofd = ofd_exp(exp); + struct filter_export_data *fed = &exp->exp_filter_data; + + if (!data) + RETURN(0); + + CDEBUG(D_RPCTRACE, "%s: cli %s/%p ocd_connect_flags: "LPX64 + " ocd_version: %x ocd_grant: %d ocd_index: %u\n", + exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, exp, + data->ocd_connect_flags, data->ocd_version, + data->ocd_grant, data->ocd_index); + + if (fed->fed_group != 0 && fed->fed_group != data->ocd_group) { + CWARN("!!! This export (nid %s) used object group %d " + "earlier; now it's trying to use group %d! This could " + "be a bug in the MDS. Please report to " + "http://bugs.whamcloud.com/\n", + obd_export_nid2str(exp), fed->fed_group, + data->ocd_group); + RETURN(-EPROTO); + } + fed->fed_group = data->ocd_group; + + data->ocd_connect_flags &= OST_CONNECT_SUPPORTED; + exp->exp_connect_flags = data->ocd_connect_flags; + data->ocd_version = LUSTRE_VERSION_CODE; + + /* Kindly make sure the SKIP_ORPHAN flag is from MDS. */ + if (data->ocd_connect_flags & OBD_CONNECT_MDS) + CDEBUG(D_HA, "%s: Received MDS connection for group %u\n", + exp->exp_obd->obd_name, data->ocd_group); + else if (data->ocd_connect_flags & OBD_CONNECT_SKIP_ORPHAN) + RETURN(-EPROTO); + + if (data->ocd_connect_flags & OBD_CONNECT_INDEX) { + struct lr_server_data *lsd = &ofd->ofd_lut.lut_lsd; + int index = lsd->lsd_ost_index; + + if (!(lsd->lsd_feature_compat & OBD_COMPAT_OST)) { + /* this will only happen on the first connect */ + lsd->lsd_ost_index = data->ocd_index; + lsd->lsd_feature_compat |= OBD_COMPAT_OST; + /* sync is not needed here as lut_client_add will + * set exp_need_sync flag */ + lut_server_data_update(env, &ofd->ofd_lut, 0); + } else if (index != data->ocd_index) { + LCONSOLE_ERROR_MSG(0x136, "Connection from %s to index" + " %u doesn't match actual OST index" + " %u in last_rcvd file, bad " + "configuration?\n", + obd_export_nid2str(exp), index, + data->ocd_index); + RETURN(-EBADF); + } + } + + if (OBD_FAIL_CHECK(OBD_FAIL_OST_BRW_SIZE)) { + data->ocd_brw_size = 65536; + } else if (data->ocd_connect_flags & OBD_CONNECT_BRW_SIZE) { + data->ocd_brw_size = min(data->ocd_brw_size, + (__u32)(PTLRPC_MAX_BRW_PAGES << CFS_PAGE_SHIFT)); + if (data->ocd_brw_size == 0) { + CERROR("%s: cli %s/%p ocd_connect_flags: "LPX64 + " ocd_version: %x ocd_grant: %d ocd_index: %u " + "ocd_brw_size is unexpectedly zero, " + "network data corruption?" + "Refusing connection of this client\n", + exp->exp_obd->obd_name, + exp->exp_client_uuid.uuid, + exp, data->ocd_connect_flags, data->ocd_version, + data->ocd_grant, data->ocd_index); + RETURN(-EPROTO); + } + } + + if (data->ocd_connect_flags & OBD_CONNECT_CKSUM) { + __u32 cksum_types = data->ocd_cksum_types; + + /* The client set in ocd_cksum_types the checksum types it + * supports. We have to mask off the algorithms that we don't + * support */ + data->ocd_cksum_types &= cksum_types_supported(); + + if (unlikely(data->ocd_cksum_types == 0)) { + CERROR("%s: Connect with checksum support but no " + "ocd_cksum_types is set\n", + exp->exp_obd->obd_name); + RETURN(-EPROTO); + } + + CDEBUG(D_RPCTRACE, "%s: cli %s supports cksum type %x, return " + "%x\n", exp->exp_obd->obd_name, obd_export_nid2str(exp), + cksum_types, data->ocd_cksum_types); + } else { + /* This client does not support OBD_CONNECT_CKSUM + * fall back to CRC32 */ + CDEBUG(D_RPCTRACE, "%s: cli %s does not support " + "OBD_CONNECT_CKSUM, CRC32 will be used\n", + exp->exp_obd->obd_name, obd_export_nid2str(exp)); + } + + if (data->ocd_connect_flags & OBD_CONNECT_MAXBYTES) + data->ocd_maxbytes = ofd->ofd_dt_conf.ddp_maxbytes; + + RETURN(0); +} + +static int ofd_obd_reconnect(const struct lu_env *env, struct obd_export *exp, + struct obd_device *obd, struct obd_uuid *cluuid, + struct obd_connect_data *data, void *localdata) +{ + struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev); + int rc; + + ENTRY; + + if (exp == NULL || obd == NULL || cluuid == NULL) + RETURN(-EINVAL); + + rc = lu_env_refill((struct lu_env *)env); + if (rc != 0) { + CERROR("Failure to refill session: '%d'\n", rc); + RETURN(rc); + } + + ofd_info_init(env, exp); + rc = ofd_parse_connect_data(env, exp, data); + if (rc == 0) + ofd_export_stats_init(ofd, exp, localdata); + + RETURN(rc); +} + +static int ofd_obd_connect(const struct lu_env *env, struct obd_export **_exp, + struct obd_device *obd, struct obd_uuid *cluuid, + struct obd_connect_data *data, void *localdata) +{ + struct obd_export *exp; + struct ofd_device *ofd; + struct lustre_handle conn = { 0 }; + int rc, group; + + ENTRY; + + if (_exp == NULL || obd == NULL || cluuid == NULL) + RETURN(-EINVAL); + + ofd = ofd_dev(obd->obd_lu_dev); + + rc = class_connect(&conn, obd, cluuid); + if (rc) + RETURN(rc); + + exp = class_conn2export(&conn); + LASSERT(exp != NULL); + + rc = lu_env_refill((struct lu_env *)env); + if (rc != 0) { + CERROR("Failure to refill session: '%d'\n", rc); + GOTO(out, rc); + } + + ofd_info_init(env, exp); + + rc = ofd_parse_connect_data(env, exp, data); + if (rc) + GOTO(out, rc); + + group = data->ocd_group; + if (obd->obd_replayable) { + struct tg_export_data *ted = &exp->exp_target_data; + + memcpy(ted->ted_lcd->lcd_uuid, cluuid, + sizeof(ted->ted_lcd->lcd_uuid)); + rc = lut_client_new(env, exp); + if (rc != 0) + GOTO(out, rc); + ofd_export_stats_init(ofd, exp, localdata); + } + if (group == 0) + GOTO(out, rc = 0); + + /* init new group */ + if (group > ofd->ofd_max_group) { + ofd->ofd_max_group = group; + rc = ofd_group_load(env, ofd, group); + } +out: + if (rc != 0) { + class_disconnect(exp); + *_exp = NULL; + } else { + *_exp = exp; + } + RETURN(rc); +} + +static int ofd_obd_disconnect(struct obd_export *exp) +{ + struct lu_env env; + int rc; + + ENTRY; + + LASSERT(exp); + class_export_get(exp); + + rc = server_disconnect_export(exp); + + rc = lu_env_init(&env, LCT_DT_THREAD); + if (rc) + RETURN(rc); + + /* Do not erase record for recoverable client. */ + if (exp->exp_obd->obd_replayable && + (!exp->exp_obd->obd_fail || exp->exp_failed)) + lut_client_del(&env, exp); + lu_env_fini(&env); + + class_export_put(exp); + RETURN(rc); +} + +static int ofd_init_export(struct obd_export *exp) +{ + int rc; + + cfs_spin_lock_init(&exp->exp_filter_data.fed_lock); + CFS_INIT_LIST_HEAD(&exp->exp_filter_data.fed_mod_list); + cfs_spin_lock(&exp->exp_lock); + exp->exp_connecting = 1; + cfs_spin_unlock(&exp->exp_lock); + + /* self-export doesn't need client data and ldlm initialization */ + if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid, + &exp->exp_client_uuid))) + return 0; + + rc = lut_client_alloc(exp); + if (rc == 0) + ldlm_init_export(exp); + if (rc) + CERROR("%s: Can't initialize export: rc %d\n", + exp->exp_obd->obd_name, rc); + return rc; +} + +static int ofd_destroy_export(struct obd_export *exp) +{ + if (exp->exp_filter_data.fed_pending) + CERROR("%s: cli %s/%p has %lu pending on destroyed export" + "\n", exp->exp_obd->obd_name, exp->exp_client_uuid.uuid, + exp, exp->exp_filter_data.fed_pending); + + target_destroy_export(exp); + + if (unlikely(obd_uuid_equals(&exp->exp_obd->obd_uuid, + &exp->exp_client_uuid))) + return 0; + + ldlm_destroy_export(exp); + lut_client_free(exp); + + LASSERT(cfs_list_empty(&exp->exp_filter_data.fed_mod_list)); + return 0; +} + +int ofd_obd_postrecov(struct obd_device *obd) +{ + struct lu_env env; + struct lu_device *ldev = obd->obd_lu_dev; + int rc; + + ENTRY; + + rc = lu_env_init(&env, LCT_DT_THREAD); + if (rc) + RETURN(rc); + ofd_info_init(&env, obd->obd_self_export); + + rc = ldev->ld_ops->ldo_recovery_complete(&env, ldev); + lu_env_fini(&env); + RETURN(rc); +} + +static int ofd_set_mds_conn(struct obd_export *exp, void *val) +{ + int rc = 0; + + ENTRY; + + LCONSOLE_WARN("%s: received MDS connection from %s\n", + exp->exp_obd->obd_name, obd_export_nid2str(exp)); + RETURN(rc); +} + +static int ofd_set_info_async(const struct lu_env *env, struct obd_export *exp, + __u32 keylen, void *key, __u32 vallen, void *val, + struct ptlrpc_request_set *set) +{ + struct ofd_device *ofd = ofd_exp(exp); + int rc = 0; + + ENTRY; + + if (exp->exp_obd == NULL) { + CDEBUG(D_IOCTL, "invalid export %p\n", exp); + RETURN(-EINVAL); + } + + if (KEY_IS(KEY_CAPA_KEY)) { + rc = ofd_update_capa_key(ofd, val); + if (rc) + CERROR("ofd update capability key failed: %d\n", rc); + } else if (KEY_IS(KEY_MDS_CONN)) { + rc = ofd_set_mds_conn(exp, val); + } else { + CERROR("%s: Unsupported key %s\n", + exp->exp_obd->obd_name, (char*)key); + rc = -EOPNOTSUPP; + } + + RETURN(rc); +} + +static int ofd_get_info(const struct lu_env *env, struct obd_export *exp, + __u32 keylen, void *key, __u32 *vallen, void *val, + struct lov_stripe_md *lsm) +{ + struct ofd_device *ofd = ofd_exp(exp); + int rc = 0; + + ENTRY; + + if (exp->exp_obd == NULL) { + CDEBUG(D_IOCTL, "invalid client export %p\n", exp); + RETURN(-EINVAL); + } + + if (KEY_IS(KEY_BLOCKSIZE)) { + __u32 *blocksize = val; + if (blocksize) { + if (*vallen < sizeof(*blocksize)) + RETURN(-EOVERFLOW); + *blocksize = 1 << ofd->ofd_dt_conf.ddp_block_shift; + } + *vallen = sizeof(*blocksize); + } else if (KEY_IS(KEY_BLOCKSIZE_BITS)) { + __u32 *blocksize_bits = val; + if (blocksize_bits) { + if (*vallen < sizeof(*blocksize_bits)) + RETURN(-EOVERFLOW); + *blocksize_bits = ofd->ofd_dt_conf.ddp_block_shift; + } + *vallen = sizeof(*blocksize_bits); + } else if (KEY_IS(KEY_LAST_ID)) { + obd_id *last_id = val; + if (last_id) { + if (*vallen < sizeof(*last_id)) + RETURN(-EOVERFLOW); + *last_id = ofd_last_id(ofd, + exp->exp_filter_data.fed_group); + } + *vallen = sizeof(*last_id); + } else { + CERROR("Not supported key %s\n", (char*)key); + rc = -EOPNOTSUPP; + } + + RETURN(rc); +} + +/** helper function for statfs, also used by grant code */ +int ofd_statfs_internal(const struct lu_env *env, struct ofd_device *ofd, + struct obd_statfs *osfs, __u64 max_age, int *from_cache) +{ + int rc; + + rc = dt_statfs(env, ofd->ofd_osd, osfs); + if (unlikely(rc)) + return rc; + + return 0; +} + +static int ofd_statfs(const struct lu_env *env, struct obd_export *exp, + struct obd_statfs *osfs, __u64 max_age, __u32 flags) +{ + struct ofd_device *ofd = ofd_dev(exp->exp_obd->obd_lu_dev); + int rc; + + ENTRY; + + rc = ofd_statfs_internal(env, ofd, osfs, max_age, NULL); + if (unlikely(rc)) + GOTO(out, rc); + + if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOSPC, + ofd->ofd_lut.lut_lsd.lsd_ost_index)) + osfs->os_bfree = osfs->os_bavail = 2; + + if (OBD_FAIL_CHECK_VALUE(OBD_FAIL_OST_ENOINO, + ofd->ofd_lut.lut_lsd.lsd_ost_index)) + osfs->os_ffree = 0; + + /* OS_STATE_READONLY can be set by OSD already */ + if (ofd->ofd_raid_degraded) + osfs->os_state |= OS_STATE_DEGRADED; + EXIT; +out: + return rc; +} + +static int ofd_sync(const struct lu_env *env, struct obd_export *exp, + struct obd_info *oinfo, obd_size start, obd_size end, + struct ptlrpc_request_set *set) +{ + struct ofd_device *ofd = ofd_exp(exp); + int rc = 0; + + ENTRY; + + /* if no objid is specified, it means "sync whole filesystem" */ + if (oinfo->oi_oa == NULL || !(oinfo->oi_oa->o_valid & OBD_MD_FLID)) { + rc = dt_sync(env, ofd->ofd_osd); + GOTO(out, rc); + } + + EXIT; +out: + return rc; +} + +int ofd_iocontrol(unsigned int cmd, struct obd_export *exp, int len, + void *karg, void *uarg) +{ + struct lu_env env; + struct ofd_device *ofd = ofd_exp(exp); + struct obd_device *obd = ofd_obd(ofd); + int rc; + + ENTRY; + + CDEBUG(D_IOCTL, "handling ioctl cmd %#x\n", cmd); + rc = lu_env_init(&env, LCT_LOCAL); + if (rc) + RETURN(rc); + + switch (cmd) { + case OBD_IOC_ABORT_RECOVERY: + CERROR("aborting recovery for device %s\n", obd->obd_name); + target_stop_recovery_thread(obd); + break; + case OBD_IOC_SYNC: + CDEBUG(D_RPCTRACE, "syncing ost %s\n", obd->obd_name); + rc = dt_sync(&env, ofd->ofd_osd); + break; + case OBD_IOC_SET_READONLY: + rc = dt_sync(&env, ofd->ofd_osd); + if (rc == 0) + rc = dt_ro(&env, ofd->ofd_osd); + break; + default: + CERROR("Not supported cmd = %d for device %s\n", + cmd, obd->obd_name); + rc = -ENOTTY; + } + + lu_env_fini(&env); + RETURN(rc); +} + +static int ofd_precleanup(struct obd_device *obd, enum obd_cleanup_stage stage) +{ + int rc = 0; + + ENTRY; + + switch(stage) { + case OBD_CLEANUP_EARLY: + break; + case OBD_CLEANUP_EXPORTS: + target_cleanup_recovery(obd); + break; + } + RETURN(rc); +} + +static int ofd_ping(const struct lu_env *env, struct obd_export *exp) +{ + return 0; +} + +static int ofd_health_check(const struct lu_env *env, struct obd_device *obd) +{ + struct ofd_device *ofd = ofd_dev(obd->obd_lu_dev); + struct ofd_thread_info *info; +#ifdef USE_HEALTH_CHECK_WRITE + struct thandle *th; +#endif + int rc = 0; + + info = ofd_info_init(env, NULL); + rc = dt_statfs(env, ofd->ofd_osd, &info->fti_u.osfs); + if (unlikely(rc)) + GOTO(out, rc); + + if (info->fti_u.osfs.os_state == OS_STATE_READONLY) + GOTO(out, rc = -EROFS); + +#ifdef USE_HEALTH_CHECK_WRITE + OBD_ALLOC(info->fti_buf.lb_buf, CFS_PAGE_SIZE); + if (info->fti_buf.lb_buf == NULL) + GOTO(out, rc = -ENOMEM); + + info->fti_buf.lb_len = CFS_PAGE_SIZE; + info->fti_off = 0; + + th = dt_trans_create(env, ofd->ofd_osd); + if (IS_ERR(th)) + GOTO(out, rc = PTR_ERR(th)); + + rc = dt_declare_record_write(env, ofd->ofd_health_check_file, + info->fti_buf.lb_len, info->fti_off, th); + if (rc == 0) { + th->th_sync = 1; /* sync IO is needed */ + rc = dt_trans_start_local(env, ofd->ofd_osd, th); + if (rc == 0) + rc = dt_record_write(env, ofd->ofd_health_check_file, + &info->fti_buf, &info->fti_off, + th); + } + dt_trans_stop(env, ofd->ofd_osd, th); + + OBD_FREE(info->fti_buf.lb_buf, CFS_PAGE_SIZE); + + CDEBUG(D_INFO, "write 1 page synchronously for checking io rc %d\n",rc); +#endif +out: + return !!rc; +} static int ofd_obd_notify(struct obd_device *obd, struct obd_device *unused, enum obd_notify_event ev, void *data) @@ -62,6 +680,20 @@ static int ofd_obd_notify(struct obd_device *obd, struct obd_device *unused, } struct obd_ops ofd_obd_ops = { - .o_owner = THIS_MODULE, - .o_notify = ofd_obd_notify, + .o_owner = THIS_MODULE, + .o_connect = ofd_obd_connect, + .o_reconnect = ofd_obd_reconnect, + .o_disconnect = ofd_obd_disconnect, + .o_set_info_async = ofd_set_info_async, + .o_get_info = ofd_get_info, + .o_statfs = ofd_statfs, + .o_init_export = ofd_init_export, + .o_destroy_export = ofd_destroy_export, + .o_postrecov = ofd_obd_postrecov, + .o_sync = ofd_sync, + .o_iocontrol = ofd_iocontrol, + .o_precleanup = ofd_precleanup, + .o_ping = ofd_ping, + .o_health_check = ofd_health_check, + .o_notify = ofd_obd_notify, };