1ea8dc4b6Seschrock /* 2ea8dc4b6Seschrock * CDDL HEADER START 3ea8dc4b6Seschrock * 4ea8dc4b6Seschrock * The contents of this file are subject to the terms of the 5ea8dc4b6Seschrock * Common Development and Distribution License (the "License"). 6ea8dc4b6Seschrock * You may not use this file except in compliance with the License. 7ea8dc4b6Seschrock * 8ea8dc4b6Seschrock * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9ea8dc4b6Seschrock * or http://www.opensolaris.org/os/licensing. 10ea8dc4b6Seschrock * See the License for the specific language governing permissions 11ea8dc4b6Seschrock * and limitations under the License. 12ea8dc4b6Seschrock * 13ea8dc4b6Seschrock * When distributing Covered Code, include this CDDL HEADER in each 14ea8dc4b6Seschrock * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15ea8dc4b6Seschrock * If applicable, add the following below this CDDL HEADER, with the 16ea8dc4b6Seschrock * fields enclosed by brackets "[]" replaced with your own identifying 17ea8dc4b6Seschrock * information: Portions Copyright [yyyy] [name of copyright owner] 18ea8dc4b6Seschrock * 19ea8dc4b6Seschrock * CDDL HEADER END 20ea8dc4b6Seschrock */ 21ea8dc4b6Seschrock /* 226809eb4eSEric Schrock * Copyright 2009 Sun Microsystems, Inc. All rights reserved. 23ea8dc4b6Seschrock * Use is subject to license terms. 24ea8dc4b6Seschrock */ 25ea8dc4b6Seschrock 26*cd0837ccSGeorge Wilson /* 27*cd0837ccSGeorge Wilson * Copyright (c) 2012 by Delphix. All rights reserved. 28*cd0837ccSGeorge Wilson */ 29*cd0837ccSGeorge Wilson 30ea8dc4b6Seschrock #include <sys/spa.h> 31ea8dc4b6Seschrock #include <sys/spa_impl.h> 32ea8dc4b6Seschrock #include <sys/vdev.h> 33ea8dc4b6Seschrock #include <sys/vdev_impl.h> 34ea8dc4b6Seschrock #include <sys/zio.h> 3522fe2c88SJonathan Adams #include <sys/zio_checksum.h> 36ea8dc4b6Seschrock 37ea8dc4b6Seschrock #include <sys/fm/fs/zfs.h> 38ea8dc4b6Seschrock #include <sys/fm/protocol.h> 39ea8dc4b6Seschrock #include <sys/fm/util.h> 40ea8dc4b6Seschrock #include <sys/sysevent.h> 41ea8dc4b6Seschrock 42ea8dc4b6Seschrock /* 43ea8dc4b6Seschrock * This general routine is responsible for generating all the different ZFS 44ea8dc4b6Seschrock * ereports. The payload is dependent on the class, and which arguments are 45ea8dc4b6Seschrock * supplied to the function: 46ea8dc4b6Seschrock * 47ea8dc4b6Seschrock * EREPORT POOL VDEV IO 48ea8dc4b6Seschrock * block X X X 49ea8dc4b6Seschrock * data X X 50ea8dc4b6Seschrock * device X X 51ea8dc4b6Seschrock * pool X 52ea8dc4b6Seschrock * 53ea8dc4b6Seschrock * If we are in a loading state, all errors are chained together by the same 5432b87932Sek * SPA-wide ENA (Error Numeric Association). 55ea8dc4b6Seschrock * 56ea8dc4b6Seschrock * For isolated I/O requests, we get the ENA from the zio_t. The propagation 57ea8dc4b6Seschrock * gets very complicated due to RAID-Z, gang blocks, and vdev caching. We want 58ea8dc4b6Seschrock * to chain together all ereports associated with a logical piece of data. For 59ea8dc4b6Seschrock * read I/Os, there are basically three 'types' of I/O, which form a roughly 60ea8dc4b6Seschrock * layered diagram: 61ea8dc4b6Seschrock * 62ea8dc4b6Seschrock * +---------------+ 63ea8dc4b6Seschrock * | Aggregate I/O | No associated logical data or device 64ea8dc4b6Seschrock * +---------------+ 65ea8dc4b6Seschrock * | 66ea8dc4b6Seschrock * V 67ea8dc4b6Seschrock * +---------------+ Reads associated with a piece of logical data. 68ea8dc4b6Seschrock * | Read I/O | This includes reads on behalf of RAID-Z, 69ea8dc4b6Seschrock * +---------------+ mirrors, gang blocks, retries, etc. 70ea8dc4b6Seschrock * | 71ea8dc4b6Seschrock * V 72ea8dc4b6Seschrock * +---------------+ Reads associated with a particular device, but 73ea8dc4b6Seschrock * | Physical I/O | no logical data. Issued as part of vdev caching 74ea8dc4b6Seschrock * +---------------+ and I/O aggregation. 75ea8dc4b6Seschrock * 76ea8dc4b6Seschrock * Note that 'physical I/O' here is not the same terminology as used in the rest 77ea8dc4b6Seschrock * of ZIO. Typically, 'physical I/O' simply means that there is no attached 78ea8dc4b6Seschrock * blockpointer. But I/O with no associated block pointer can still be related 79ea8dc4b6Seschrock * to a logical piece of data (i.e. RAID-Z requests). 80ea8dc4b6Seschrock * 81ea8dc4b6Seschrock * Purely physical I/O always have unique ENAs. They are not related to a 82ea8dc4b6Seschrock * particular piece of logical data, and therefore cannot be chained together. 83ea8dc4b6Seschrock * We still generate an ereport, but the DE doesn't correlate it with any 84ea8dc4b6Seschrock * logical piece of data. When such an I/O fails, the delegated I/O requests 85ea8dc4b6Seschrock * will issue a retry, which will trigger the 'real' ereport with the correct 86ea8dc4b6Seschrock * ENA. 87ea8dc4b6Seschrock * 88ea8dc4b6Seschrock * We keep track of the ENA for a ZIO chain through the 'io_logical' member. 89ea8dc4b6Seschrock * When a new logical I/O is issued, we set this to point to itself. Child I/Os 90ea8dc4b6Seschrock * then inherit this pointer, so that when it is first set subsequent failures 91e14bb325SJeff Bonwick * will use the same ENA. For vdev cache fill and queue aggregation I/O, 92e14bb325SJeff Bonwick * this pointer is set to NULL, and no ereport will be generated (since it 93e14bb325SJeff Bonwick * doesn't actually correspond to any particular device or piece of data, 94e14bb325SJeff Bonwick * and the caller will always retry without caching or queueing anyway). 9522fe2c88SJonathan Adams * 9622fe2c88SJonathan Adams * For checksum errors, we want to include more information about the actual 9722fe2c88SJonathan Adams * error which occurs. Accordingly, we build an ereport when the error is 9822fe2c88SJonathan Adams * noticed, but instead of sending it in immediately, we hang it off of the 9922fe2c88SJonathan Adams * io_cksum_report field of the logical IO. When the logical IO completes 10022fe2c88SJonathan Adams * (successfully or not), zfs_ereport_finish_checksum() is called with the 10122fe2c88SJonathan Adams * good and bad versions of the buffer (if available), and we annotate the 10222fe2c88SJonathan Adams * ereport with information about the differences. 103ea8dc4b6Seschrock */ 10422fe2c88SJonathan Adams #ifdef _KERNEL 10522fe2c88SJonathan Adams static void 10622fe2c88SJonathan Adams zfs_ereport_start(nvlist_t **ereport_out, nvlist_t **detector_out, 10722fe2c88SJonathan Adams const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, 108ea8dc4b6Seschrock uint64_t stateoroffset, uint64_t size) 109ea8dc4b6Seschrock { 110ea8dc4b6Seschrock nvlist_t *ereport, *detector; 11122fe2c88SJonathan Adams 112ea8dc4b6Seschrock uint64_t ena; 113ea8dc4b6Seschrock char class[64]; 114ea8dc4b6Seschrock 115ea8dc4b6Seschrock /* 116468c413aSTim Haley * If we are doing a spa_tryimport() or in recovery mode, 117468c413aSTim Haley * ignore errors. 118ea8dc4b6Seschrock */ 119b16da2e2SGeorge Wilson if (spa_load_state(spa) == SPA_LOAD_TRYIMPORT || 120b16da2e2SGeorge Wilson spa_load_state(spa) == SPA_LOAD_RECOVER) 121ea8dc4b6Seschrock return; 122ea8dc4b6Seschrock 123ea8dc4b6Seschrock /* 124ea8dc4b6Seschrock * If we are in the middle of opening a pool, and the previous attempt 125ea8dc4b6Seschrock * failed, don't bother logging any new ereports - we're just going to 126ea8dc4b6Seschrock * get the same diagnosis anyway. 127ea8dc4b6Seschrock */ 128b16da2e2SGeorge Wilson if (spa_load_state(spa) != SPA_LOAD_NONE && 129ea8dc4b6Seschrock spa->spa_last_open_failed) 130ea8dc4b6Seschrock return; 131ea8dc4b6Seschrock 132bf82a41bSeschrock if (zio != NULL) { 133bf82a41bSeschrock /* 134bf82a41bSeschrock * If this is not a read or write zio, ignore the error. This 135bf82a41bSeschrock * can occur if the DKIOCFLUSHWRITECACHE ioctl fails. 136bf82a41bSeschrock */ 137bf82a41bSeschrock if (zio->io_type != ZIO_TYPE_READ && 138bf82a41bSeschrock zio->io_type != ZIO_TYPE_WRITE) 139bf82a41bSeschrock return; 140bf82a41bSeschrock 141bf82a41bSeschrock /* 142bf82a41bSeschrock * Ignore any errors from speculative I/Os, as failure is an 143bf82a41bSeschrock * expected result. 144bf82a41bSeschrock */ 145bf82a41bSeschrock if (zio->io_flags & ZIO_FLAG_SPECULATIVE) 146bf82a41bSeschrock return; 14751ece835Seschrock 1488956713aSEric Schrock /* 1498956713aSEric Schrock * If this I/O is not a retry I/O, don't post an ereport. 1508956713aSEric Schrock * Otherwise, we risk making bad diagnoses based on B_FAILFAST 1518956713aSEric Schrock * I/Os. 1528956713aSEric Schrock */ 1538956713aSEric Schrock if (zio->io_error == EIO && 1548956713aSEric Schrock !(zio->io_flags & ZIO_FLAG_IO_RETRY)) 1558956713aSEric Schrock return; 1568956713aSEric Schrock 1576809eb4eSEric Schrock if (vd != NULL) { 1586809eb4eSEric Schrock /* 1596809eb4eSEric Schrock * If the vdev has already been marked as failing due 1606809eb4eSEric Schrock * to a failed probe, then ignore any subsequent I/O 1616809eb4eSEric Schrock * errors, as the DE will automatically fault the vdev 1626809eb4eSEric Schrock * on the first such failure. This also catches cases 1636809eb4eSEric Schrock * where vdev_remove_wanted is set and the device has 1646809eb4eSEric Schrock * not yet been asynchronously placed into the REMOVED 1656809eb4eSEric Schrock * state. 1666809eb4eSEric Schrock */ 1671d713200SEric Schrock if (zio->io_vd == vd && !vdev_accessible(vd, zio)) 1686809eb4eSEric Schrock return; 1696809eb4eSEric Schrock 1706809eb4eSEric Schrock /* 1716809eb4eSEric Schrock * Ignore checksum errors for reads from DTL regions of 1726809eb4eSEric Schrock * leaf vdevs. 1736809eb4eSEric Schrock */ 1746809eb4eSEric Schrock if (zio->io_type == ZIO_TYPE_READ && 1756809eb4eSEric Schrock zio->io_error == ECKSUM && 1766809eb4eSEric Schrock vd->vdev_ops->vdev_op_leaf && 1776809eb4eSEric Schrock vdev_dtl_contains(vd, DTL_MISSING, zio->io_txg, 1)) 1786809eb4eSEric Schrock return; 1796809eb4eSEric Schrock } 180bf82a41bSeschrock } 181b468a217Seschrock 1821d713200SEric Schrock /* 1831d713200SEric Schrock * For probe failure, we want to avoid posting ereports if we've 1841d713200SEric Schrock * already removed the device in the meantime. 1851d713200SEric Schrock */ 1861d713200SEric Schrock if (vd != NULL && 1871d713200SEric Schrock strcmp(subclass, FM_EREPORT_ZFS_PROBE_FAILURE) == 0 && 1881d713200SEric Schrock (vd->vdev_remove_wanted || vd->vdev_state == VDEV_STATE_REMOVED)) 1891d713200SEric Schrock return; 1901d713200SEric Schrock 191ea8dc4b6Seschrock if ((ereport = fm_nvlist_create(NULL)) == NULL) 192ea8dc4b6Seschrock return; 193ea8dc4b6Seschrock 194ea8dc4b6Seschrock if ((detector = fm_nvlist_create(NULL)) == NULL) { 195ea8dc4b6Seschrock fm_nvlist_destroy(ereport, FM_NVA_FREE); 196ea8dc4b6Seschrock return; 197ea8dc4b6Seschrock } 198ea8dc4b6Seschrock 199ea8dc4b6Seschrock /* 200ea8dc4b6Seschrock * Serialize ereport generation 201ea8dc4b6Seschrock */ 202ea8dc4b6Seschrock mutex_enter(&spa->spa_errlist_lock); 203ea8dc4b6Seschrock 204ea8dc4b6Seschrock /* 205ea8dc4b6Seschrock * Determine the ENA to use for this event. If we are in a loading 206ea8dc4b6Seschrock * state, use a SPA-wide ENA. Otherwise, if we are in an I/O state, use 207ea8dc4b6Seschrock * a root zio-wide ENA. Otherwise, simply use a unique ENA. 208ea8dc4b6Seschrock */ 209b16da2e2SGeorge Wilson if (spa_load_state(spa) != SPA_LOAD_NONE) { 210ea8dc4b6Seschrock if (spa->spa_ena == 0) 211ea8dc4b6Seschrock spa->spa_ena = fm_ena_generate(0, FM_ENA_FMT1); 212ea8dc4b6Seschrock ena = spa->spa_ena; 213ea8dc4b6Seschrock } else if (zio != NULL && zio->io_logical != NULL) { 214ea8dc4b6Seschrock if (zio->io_logical->io_ena == 0) 215ea8dc4b6Seschrock zio->io_logical->io_ena = 216ea8dc4b6Seschrock fm_ena_generate(0, FM_ENA_FMT1); 217ea8dc4b6Seschrock ena = zio->io_logical->io_ena; 218ea8dc4b6Seschrock } else { 219ea8dc4b6Seschrock ena = fm_ena_generate(0, FM_ENA_FMT1); 220ea8dc4b6Seschrock } 221ea8dc4b6Seschrock 222ea8dc4b6Seschrock /* 223ea8dc4b6Seschrock * Construct the full class, detector, and other standard FMA fields. 224ea8dc4b6Seschrock */ 225ea8dc4b6Seschrock (void) snprintf(class, sizeof (class), "%s.%s", 226ea8dc4b6Seschrock ZFS_ERROR_CLASS, subclass); 227ea8dc4b6Seschrock 228ea8dc4b6Seschrock fm_fmri_zfs_set(detector, FM_ZFS_SCHEME_VERSION, spa_guid(spa), 229ea8dc4b6Seschrock vd != NULL ? vd->vdev_guid : 0); 230ea8dc4b6Seschrock 231ea8dc4b6Seschrock fm_ereport_set(ereport, FM_EREPORT_VERSION, class, ena, detector, NULL); 232ea8dc4b6Seschrock 233ea8dc4b6Seschrock /* 234ea8dc4b6Seschrock * Construct the per-ereport payload, depending on which parameters are 235ea8dc4b6Seschrock * passed in. 236ea8dc4b6Seschrock */ 237ea8dc4b6Seschrock 238ea8dc4b6Seschrock /* 239ea8dc4b6Seschrock * Generic payload members common to all ereports. 240ea8dc4b6Seschrock */ 241ea8dc4b6Seschrock fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_POOL, 242e14bb325SJeff Bonwick DATA_TYPE_STRING, spa_name(spa), FM_EREPORT_PAYLOAD_ZFS_POOL_GUID, 243ea8dc4b6Seschrock DATA_TYPE_UINT64, spa_guid(spa), 244ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_POOL_CONTEXT, DATA_TYPE_INT32, 245b16da2e2SGeorge Wilson spa_load_state(spa), NULL); 246ea8dc4b6Seschrock 24732b87932Sek if (spa != NULL) { 24832b87932Sek fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_POOL_FAILMODE, 24932b87932Sek DATA_TYPE_STRING, 25032b87932Sek spa_get_failmode(spa) == ZIO_FAILURE_MODE_WAIT ? 25132b87932Sek FM_EREPORT_FAILMODE_WAIT : 25232b87932Sek spa_get_failmode(spa) == ZIO_FAILURE_MODE_CONTINUE ? 25332b87932Sek FM_EREPORT_FAILMODE_CONTINUE : FM_EREPORT_FAILMODE_PANIC, 25432b87932Sek NULL); 25532b87932Sek } 25632b87932Sek 257ea8dc4b6Seschrock if (vd != NULL) { 258ea8dc4b6Seschrock vdev_t *pvd = vd->vdev_parent; 259ea8dc4b6Seschrock 260ea8dc4b6Seschrock fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID, 261ea8dc4b6Seschrock DATA_TYPE_UINT64, vd->vdev_guid, 262ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_VDEV_TYPE, 263ea8dc4b6Seschrock DATA_TYPE_STRING, vd->vdev_ops->vdev_op_type, NULL); 2646809eb4eSEric Schrock if (vd->vdev_path != NULL) 265ea8dc4b6Seschrock fm_payload_set(ereport, 266ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_VDEV_PATH, 267ea8dc4b6Seschrock DATA_TYPE_STRING, vd->vdev_path, NULL); 2686809eb4eSEric Schrock if (vd->vdev_devid != NULL) 269ea8dc4b6Seschrock fm_payload_set(ereport, 270ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_VDEV_DEVID, 271ea8dc4b6Seschrock DATA_TYPE_STRING, vd->vdev_devid, NULL); 2726809eb4eSEric Schrock if (vd->vdev_fru != NULL) 2736809eb4eSEric Schrock fm_payload_set(ereport, 2746809eb4eSEric Schrock FM_EREPORT_PAYLOAD_ZFS_VDEV_FRU, 2756809eb4eSEric Schrock DATA_TYPE_STRING, vd->vdev_fru, NULL); 276ea8dc4b6Seschrock 277ea8dc4b6Seschrock if (pvd != NULL) { 278ea8dc4b6Seschrock fm_payload_set(ereport, 279ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_PARENT_GUID, 280ea8dc4b6Seschrock DATA_TYPE_UINT64, pvd->vdev_guid, 281ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_PARENT_TYPE, 282ea8dc4b6Seschrock DATA_TYPE_STRING, pvd->vdev_ops->vdev_op_type, 283ea8dc4b6Seschrock NULL); 284ea8dc4b6Seschrock if (pvd->vdev_path) 285ea8dc4b6Seschrock fm_payload_set(ereport, 286ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_PARENT_PATH, 287c25056deSgw DATA_TYPE_STRING, pvd->vdev_path, NULL); 288ea8dc4b6Seschrock if (pvd->vdev_devid) 289ea8dc4b6Seschrock fm_payload_set(ereport, 290ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_PARENT_DEVID, 291ea8dc4b6Seschrock DATA_TYPE_STRING, pvd->vdev_devid, NULL); 292ea8dc4b6Seschrock } 293ea8dc4b6Seschrock } 294ea8dc4b6Seschrock 295ea8dc4b6Seschrock if (zio != NULL) { 296ea8dc4b6Seschrock /* 297ea8dc4b6Seschrock * Payload common to all I/Os. 298ea8dc4b6Seschrock */ 299ea8dc4b6Seschrock fm_payload_set(ereport, FM_EREPORT_PAYLOAD_ZFS_ZIO_ERR, 300ea8dc4b6Seschrock DATA_TYPE_INT32, zio->io_error, NULL); 301ea8dc4b6Seschrock 302ea8dc4b6Seschrock /* 303ea8dc4b6Seschrock * If the 'size' parameter is non-zero, it indicates this is a 304ea8dc4b6Seschrock * RAID-Z or other I/O where the physical offset and length are 305ea8dc4b6Seschrock * provided for us, instead of within the zio_t. 306ea8dc4b6Seschrock */ 307ea8dc4b6Seschrock if (vd != NULL) { 308ea8dc4b6Seschrock if (size) 309ea8dc4b6Seschrock fm_payload_set(ereport, 310ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_ZIO_OFFSET, 311ea8dc4b6Seschrock DATA_TYPE_UINT64, stateoroffset, 312ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_ZIO_SIZE, 313c3c6d682Seschrock DATA_TYPE_UINT64, size, NULL); 314ea8dc4b6Seschrock else 315ea8dc4b6Seschrock fm_payload_set(ereport, 316ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_ZIO_OFFSET, 317ea8dc4b6Seschrock DATA_TYPE_UINT64, zio->io_offset, 318ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_ZIO_SIZE, 319c3c6d682Seschrock DATA_TYPE_UINT64, zio->io_size, NULL); 320ea8dc4b6Seschrock } 321ea8dc4b6Seschrock 322ea8dc4b6Seschrock /* 323ea8dc4b6Seschrock * Payload for I/Os with corresponding logical information. 324ea8dc4b6Seschrock */ 325ea8dc4b6Seschrock if (zio->io_logical != NULL) 326ea8dc4b6Seschrock fm_payload_set(ereport, 327e7cbe64fSgw FM_EREPORT_PAYLOAD_ZFS_ZIO_OBJSET, 328e7cbe64fSgw DATA_TYPE_UINT64, 329e7cbe64fSgw zio->io_logical->io_bookmark.zb_objset, 330ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_ZIO_OBJECT, 331ea8dc4b6Seschrock DATA_TYPE_UINT64, 332ea8dc4b6Seschrock zio->io_logical->io_bookmark.zb_object, 333ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_ZIO_LEVEL, 334c25056deSgw DATA_TYPE_INT64, 335ea8dc4b6Seschrock zio->io_logical->io_bookmark.zb_level, 336ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_ZIO_BLKID, 337ea8dc4b6Seschrock DATA_TYPE_UINT64, 338c3c6d682Seschrock zio->io_logical->io_bookmark.zb_blkid, NULL); 339ea8dc4b6Seschrock } else if (vd != NULL) { 340ea8dc4b6Seschrock /* 341ea8dc4b6Seschrock * If we have a vdev but no zio, this is a device fault, and the 342ea8dc4b6Seschrock * 'stateoroffset' parameter indicates the previous state of the 343ea8dc4b6Seschrock * vdev. 344ea8dc4b6Seschrock */ 345ea8dc4b6Seschrock fm_payload_set(ereport, 346ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_PREV_STATE, 347ea8dc4b6Seschrock DATA_TYPE_UINT64, stateoroffset, NULL); 348ea8dc4b6Seschrock } 349468c413aSTim Haley 350ea8dc4b6Seschrock mutex_exit(&spa->spa_errlist_lock); 351ea8dc4b6Seschrock 35222fe2c88SJonathan Adams *ereport_out = ereport; 35322fe2c88SJonathan Adams *detector_out = detector; 35422fe2c88SJonathan Adams } 35522fe2c88SJonathan Adams 35622fe2c88SJonathan Adams /* if it's <= 128 bytes, save the corruption directly */ 35722fe2c88SJonathan Adams #define ZFM_MAX_INLINE (128 / sizeof (uint64_t)) 35822fe2c88SJonathan Adams 35922fe2c88SJonathan Adams #define MAX_RANGES 16 36022fe2c88SJonathan Adams 36122fe2c88SJonathan Adams typedef struct zfs_ecksum_info { 36222fe2c88SJonathan Adams /* histograms of set and cleared bits by bit number in a 64-bit word */ 36322fe2c88SJonathan Adams uint16_t zei_histogram_set[sizeof (uint64_t) * NBBY]; 36422fe2c88SJonathan Adams uint16_t zei_histogram_cleared[sizeof (uint64_t) * NBBY]; 36522fe2c88SJonathan Adams 36622fe2c88SJonathan Adams /* inline arrays of bits set and cleared. */ 36722fe2c88SJonathan Adams uint64_t zei_bits_set[ZFM_MAX_INLINE]; 36822fe2c88SJonathan Adams uint64_t zei_bits_cleared[ZFM_MAX_INLINE]; 36922fe2c88SJonathan Adams 37022fe2c88SJonathan Adams /* 37122fe2c88SJonathan Adams * for each range, the number of bits set and cleared. The Hamming 37222fe2c88SJonathan Adams * distance between the good and bad buffers is the sum of them all. 37322fe2c88SJonathan Adams */ 37422fe2c88SJonathan Adams uint32_t zei_range_sets[MAX_RANGES]; 37522fe2c88SJonathan Adams uint32_t zei_range_clears[MAX_RANGES]; 37622fe2c88SJonathan Adams 37722fe2c88SJonathan Adams struct zei_ranges { 37822fe2c88SJonathan Adams uint32_t zr_start; 37922fe2c88SJonathan Adams uint32_t zr_end; 38022fe2c88SJonathan Adams } zei_ranges[MAX_RANGES]; 38122fe2c88SJonathan Adams 38222fe2c88SJonathan Adams size_t zei_range_count; 38322fe2c88SJonathan Adams uint32_t zei_mingap; 38422fe2c88SJonathan Adams uint32_t zei_allowed_mingap; 38522fe2c88SJonathan Adams 38622fe2c88SJonathan Adams } zfs_ecksum_info_t; 38722fe2c88SJonathan Adams 38822fe2c88SJonathan Adams static void 38922fe2c88SJonathan Adams update_histogram(uint64_t value_arg, uint16_t *hist, uint32_t *count) 39022fe2c88SJonathan Adams { 39122fe2c88SJonathan Adams size_t i; 39222fe2c88SJonathan Adams size_t bits = 0; 39322fe2c88SJonathan Adams uint64_t value = BE_64(value_arg); 39422fe2c88SJonathan Adams 39522fe2c88SJonathan Adams /* We store the bits in big-endian (largest-first) order */ 39622fe2c88SJonathan Adams for (i = 0; i < 64; i++) { 39722fe2c88SJonathan Adams if (value & (1ull << i)) { 39822fe2c88SJonathan Adams hist[63 - i]++; 39922fe2c88SJonathan Adams ++bits; 40022fe2c88SJonathan Adams } 40122fe2c88SJonathan Adams } 40222fe2c88SJonathan Adams /* update the count of bits changed */ 40322fe2c88SJonathan Adams *count += bits; 40422fe2c88SJonathan Adams } 40522fe2c88SJonathan Adams 40622fe2c88SJonathan Adams /* 40722fe2c88SJonathan Adams * We've now filled up the range array, and need to increase "mingap" and 40822fe2c88SJonathan Adams * shrink the range list accordingly. zei_mingap is always the smallest 40922fe2c88SJonathan Adams * distance between array entries, so we set the new_allowed_gap to be 41022fe2c88SJonathan Adams * one greater than that. We then go through the list, joining together 41122fe2c88SJonathan Adams * any ranges which are closer than the new_allowed_gap. 41222fe2c88SJonathan Adams * 41322fe2c88SJonathan Adams * By construction, there will be at least one. We also update zei_mingap 41422fe2c88SJonathan Adams * to the new smallest gap, to prepare for our next invocation. 41522fe2c88SJonathan Adams */ 41622fe2c88SJonathan Adams static void 41722fe2c88SJonathan Adams shrink_ranges(zfs_ecksum_info_t *eip) 41822fe2c88SJonathan Adams { 41922fe2c88SJonathan Adams uint32_t mingap = UINT32_MAX; 42022fe2c88SJonathan Adams uint32_t new_allowed_gap = eip->zei_mingap + 1; 42122fe2c88SJonathan Adams 42222fe2c88SJonathan Adams size_t idx, output; 42322fe2c88SJonathan Adams size_t max = eip->zei_range_count; 42422fe2c88SJonathan Adams 42522fe2c88SJonathan Adams struct zei_ranges *r = eip->zei_ranges; 42622fe2c88SJonathan Adams 42722fe2c88SJonathan Adams ASSERT3U(eip->zei_range_count, >, 0); 42822fe2c88SJonathan Adams ASSERT3U(eip->zei_range_count, <=, MAX_RANGES); 42922fe2c88SJonathan Adams 43022fe2c88SJonathan Adams output = idx = 0; 43122fe2c88SJonathan Adams while (idx < max - 1) { 43222fe2c88SJonathan Adams uint32_t start = r[idx].zr_start; 43322fe2c88SJonathan Adams uint32_t end = r[idx].zr_end; 43422fe2c88SJonathan Adams 43522fe2c88SJonathan Adams while (idx < max - 1) { 43622fe2c88SJonathan Adams idx++; 43722fe2c88SJonathan Adams 43822fe2c88SJonathan Adams uint32_t nstart = r[idx].zr_start; 43922fe2c88SJonathan Adams uint32_t nend = r[idx].zr_end; 44022fe2c88SJonathan Adams 44122fe2c88SJonathan Adams uint32_t gap = nstart - end; 44222fe2c88SJonathan Adams if (gap < new_allowed_gap) { 44322fe2c88SJonathan Adams end = nend; 44422fe2c88SJonathan Adams continue; 44522fe2c88SJonathan Adams } 44622fe2c88SJonathan Adams if (gap < mingap) 44722fe2c88SJonathan Adams mingap = gap; 44822fe2c88SJonathan Adams break; 44922fe2c88SJonathan Adams } 45022fe2c88SJonathan Adams r[output].zr_start = start; 45122fe2c88SJonathan Adams r[output].zr_end = end; 45222fe2c88SJonathan Adams output++; 45322fe2c88SJonathan Adams } 45422fe2c88SJonathan Adams ASSERT3U(output, <, eip->zei_range_count); 45522fe2c88SJonathan Adams eip->zei_range_count = output; 45622fe2c88SJonathan Adams eip->zei_mingap = mingap; 45722fe2c88SJonathan Adams eip->zei_allowed_mingap = new_allowed_gap; 45822fe2c88SJonathan Adams } 45922fe2c88SJonathan Adams 46022fe2c88SJonathan Adams static void 46122fe2c88SJonathan Adams add_range(zfs_ecksum_info_t *eip, int start, int end) 46222fe2c88SJonathan Adams { 46322fe2c88SJonathan Adams struct zei_ranges *r = eip->zei_ranges; 46422fe2c88SJonathan Adams size_t count = eip->zei_range_count; 46522fe2c88SJonathan Adams 46622fe2c88SJonathan Adams if (count >= MAX_RANGES) { 46722fe2c88SJonathan Adams shrink_ranges(eip); 46822fe2c88SJonathan Adams count = eip->zei_range_count; 46922fe2c88SJonathan Adams } 47022fe2c88SJonathan Adams if (count == 0) { 47122fe2c88SJonathan Adams eip->zei_mingap = UINT32_MAX; 47222fe2c88SJonathan Adams eip->zei_allowed_mingap = 1; 47322fe2c88SJonathan Adams } else { 47422fe2c88SJonathan Adams int gap = start - r[count - 1].zr_end; 47522fe2c88SJonathan Adams 47622fe2c88SJonathan Adams if (gap < eip->zei_allowed_mingap) { 47722fe2c88SJonathan Adams r[count - 1].zr_end = end; 47822fe2c88SJonathan Adams return; 47922fe2c88SJonathan Adams } 48022fe2c88SJonathan Adams if (gap < eip->zei_mingap) 48122fe2c88SJonathan Adams eip->zei_mingap = gap; 48222fe2c88SJonathan Adams } 48322fe2c88SJonathan Adams r[count].zr_start = start; 48422fe2c88SJonathan Adams r[count].zr_end = end; 48522fe2c88SJonathan Adams eip->zei_range_count++; 48622fe2c88SJonathan Adams } 48722fe2c88SJonathan Adams 48822fe2c88SJonathan Adams static size_t 48922fe2c88SJonathan Adams range_total_size(zfs_ecksum_info_t *eip) 49022fe2c88SJonathan Adams { 49122fe2c88SJonathan Adams struct zei_ranges *r = eip->zei_ranges; 49222fe2c88SJonathan Adams size_t count = eip->zei_range_count; 49322fe2c88SJonathan Adams size_t result = 0; 49422fe2c88SJonathan Adams size_t idx; 49522fe2c88SJonathan Adams 49622fe2c88SJonathan Adams for (idx = 0; idx < count; idx++) 49722fe2c88SJonathan Adams result += (r[idx].zr_end - r[idx].zr_start); 49822fe2c88SJonathan Adams 49922fe2c88SJonathan Adams return (result); 50022fe2c88SJonathan Adams } 50122fe2c88SJonathan Adams 50222fe2c88SJonathan Adams static zfs_ecksum_info_t * 50322fe2c88SJonathan Adams annotate_ecksum(nvlist_t *ereport, zio_bad_cksum_t *info, 50422fe2c88SJonathan Adams const uint8_t *goodbuf, const uint8_t *badbuf, size_t size, 50522fe2c88SJonathan Adams boolean_t drop_if_identical) 50622fe2c88SJonathan Adams { 50722fe2c88SJonathan Adams const uint64_t *good = (const uint64_t *)goodbuf; 50822fe2c88SJonathan Adams const uint64_t *bad = (const uint64_t *)badbuf; 50922fe2c88SJonathan Adams 51022fe2c88SJonathan Adams uint64_t allset = 0; 51122fe2c88SJonathan Adams uint64_t allcleared = 0; 51222fe2c88SJonathan Adams 51322fe2c88SJonathan Adams size_t nui64s = size / sizeof (uint64_t); 51422fe2c88SJonathan Adams 51522fe2c88SJonathan Adams size_t inline_size; 51622fe2c88SJonathan Adams int no_inline = 0; 51722fe2c88SJonathan Adams size_t idx; 51822fe2c88SJonathan Adams size_t range; 51922fe2c88SJonathan Adams 52022fe2c88SJonathan Adams size_t offset = 0; 52122fe2c88SJonathan Adams ssize_t start = -1; 52222fe2c88SJonathan Adams 52322fe2c88SJonathan Adams zfs_ecksum_info_t *eip = kmem_zalloc(sizeof (*eip), KM_SLEEP); 52422fe2c88SJonathan Adams 52522fe2c88SJonathan Adams /* don't do any annotation for injected checksum errors */ 52622fe2c88SJonathan Adams if (info != NULL && info->zbc_injected) 52722fe2c88SJonathan Adams return (eip); 52822fe2c88SJonathan Adams 52922fe2c88SJonathan Adams if (info != NULL && info->zbc_has_cksum) { 53022fe2c88SJonathan Adams fm_payload_set(ereport, 53122fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_CKSUM_EXPECTED, 53222fe2c88SJonathan Adams DATA_TYPE_UINT64_ARRAY, 53322fe2c88SJonathan Adams sizeof (info->zbc_expected) / sizeof (uint64_t), 53422fe2c88SJonathan Adams (uint64_t *)&info->zbc_expected, 53522fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_CKSUM_ACTUAL, 53622fe2c88SJonathan Adams DATA_TYPE_UINT64_ARRAY, 53722fe2c88SJonathan Adams sizeof (info->zbc_actual) / sizeof (uint64_t), 53822fe2c88SJonathan Adams (uint64_t *)&info->zbc_actual, 53922fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_CKSUM_ALGO, 54022fe2c88SJonathan Adams DATA_TYPE_STRING, 54122fe2c88SJonathan Adams info->zbc_checksum_name, 54222fe2c88SJonathan Adams NULL); 54322fe2c88SJonathan Adams 54422fe2c88SJonathan Adams if (info->zbc_byteswapped) { 54522fe2c88SJonathan Adams fm_payload_set(ereport, 54622fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_CKSUM_BYTESWAP, 54722fe2c88SJonathan Adams DATA_TYPE_BOOLEAN, 1, 54822fe2c88SJonathan Adams NULL); 54922fe2c88SJonathan Adams } 55022fe2c88SJonathan Adams } 55122fe2c88SJonathan Adams 55222fe2c88SJonathan Adams if (badbuf == NULL || goodbuf == NULL) 55322fe2c88SJonathan Adams return (eip); 55422fe2c88SJonathan Adams 55522fe2c88SJonathan Adams ASSERT3U(nui64s, <=, UINT16_MAX); 55622fe2c88SJonathan Adams ASSERT3U(size, ==, nui64s * sizeof (uint64_t)); 55722fe2c88SJonathan Adams ASSERT3U(size, <=, SPA_MAXBLOCKSIZE); 55822fe2c88SJonathan Adams ASSERT3U(size, <=, UINT32_MAX); 55922fe2c88SJonathan Adams 56022fe2c88SJonathan Adams /* build up the range list by comparing the two buffers. */ 56122fe2c88SJonathan Adams for (idx = 0; idx < nui64s; idx++) { 56222fe2c88SJonathan Adams if (good[idx] == bad[idx]) { 56322fe2c88SJonathan Adams if (start == -1) 56422fe2c88SJonathan Adams continue; 56522fe2c88SJonathan Adams 56622fe2c88SJonathan Adams add_range(eip, start, idx); 56722fe2c88SJonathan Adams start = -1; 56822fe2c88SJonathan Adams } else { 56922fe2c88SJonathan Adams if (start != -1) 57022fe2c88SJonathan Adams continue; 57122fe2c88SJonathan Adams 57222fe2c88SJonathan Adams start = idx; 57322fe2c88SJonathan Adams } 57422fe2c88SJonathan Adams } 57522fe2c88SJonathan Adams if (start != -1) 57622fe2c88SJonathan Adams add_range(eip, start, idx); 57722fe2c88SJonathan Adams 57822fe2c88SJonathan Adams /* See if it will fit in our inline buffers */ 57922fe2c88SJonathan Adams inline_size = range_total_size(eip); 58022fe2c88SJonathan Adams if (inline_size > ZFM_MAX_INLINE) 58122fe2c88SJonathan Adams no_inline = 1; 58222fe2c88SJonathan Adams 58322fe2c88SJonathan Adams /* 58422fe2c88SJonathan Adams * If there is no change and we want to drop if the buffers are 58522fe2c88SJonathan Adams * identical, do so. 58622fe2c88SJonathan Adams */ 58722fe2c88SJonathan Adams if (inline_size == 0 && drop_if_identical) { 58822fe2c88SJonathan Adams kmem_free(eip, sizeof (*eip)); 58922fe2c88SJonathan Adams return (NULL); 59022fe2c88SJonathan Adams } 59122fe2c88SJonathan Adams 59222fe2c88SJonathan Adams /* 59322fe2c88SJonathan Adams * Now walk through the ranges, filling in the details of the 59422fe2c88SJonathan Adams * differences. Also convert our uint64_t-array offsets to byte 59522fe2c88SJonathan Adams * offsets. 59622fe2c88SJonathan Adams */ 59722fe2c88SJonathan Adams for (range = 0; range < eip->zei_range_count; range++) { 59822fe2c88SJonathan Adams size_t start = eip->zei_ranges[range].zr_start; 59922fe2c88SJonathan Adams size_t end = eip->zei_ranges[range].zr_end; 60022fe2c88SJonathan Adams 60122fe2c88SJonathan Adams for (idx = start; idx < end; idx++) { 60222fe2c88SJonathan Adams uint64_t set, cleared; 60322fe2c88SJonathan Adams 60422fe2c88SJonathan Adams // bits set in bad, but not in good 60522fe2c88SJonathan Adams set = ((~good[idx]) & bad[idx]); 60622fe2c88SJonathan Adams // bits set in good, but not in bad 60722fe2c88SJonathan Adams cleared = (good[idx] & (~bad[idx])); 60822fe2c88SJonathan Adams 60922fe2c88SJonathan Adams allset |= set; 61022fe2c88SJonathan Adams allcleared |= cleared; 61122fe2c88SJonathan Adams 61222fe2c88SJonathan Adams if (!no_inline) { 61322fe2c88SJonathan Adams ASSERT3U(offset, <, inline_size); 61422fe2c88SJonathan Adams eip->zei_bits_set[offset] = set; 61522fe2c88SJonathan Adams eip->zei_bits_cleared[offset] = cleared; 61622fe2c88SJonathan Adams offset++; 61722fe2c88SJonathan Adams } 61822fe2c88SJonathan Adams 61922fe2c88SJonathan Adams update_histogram(set, eip->zei_histogram_set, 62022fe2c88SJonathan Adams &eip->zei_range_sets[range]); 62122fe2c88SJonathan Adams update_histogram(cleared, eip->zei_histogram_cleared, 62222fe2c88SJonathan Adams &eip->zei_range_clears[range]); 62322fe2c88SJonathan Adams } 62422fe2c88SJonathan Adams 62522fe2c88SJonathan Adams /* convert to byte offsets */ 62622fe2c88SJonathan Adams eip->zei_ranges[range].zr_start *= sizeof (uint64_t); 62722fe2c88SJonathan Adams eip->zei_ranges[range].zr_end *= sizeof (uint64_t); 62822fe2c88SJonathan Adams } 62922fe2c88SJonathan Adams eip->zei_allowed_mingap *= sizeof (uint64_t); 63022fe2c88SJonathan Adams inline_size *= sizeof (uint64_t); 63122fe2c88SJonathan Adams 63222fe2c88SJonathan Adams /* fill in ereport */ 63322fe2c88SJonathan Adams fm_payload_set(ereport, 63422fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_BAD_OFFSET_RANGES, 63522fe2c88SJonathan Adams DATA_TYPE_UINT32_ARRAY, 2 * eip->zei_range_count, 63622fe2c88SJonathan Adams (uint32_t *)eip->zei_ranges, 63722fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_MIN_GAP, 63822fe2c88SJonathan Adams DATA_TYPE_UINT32, eip->zei_allowed_mingap, 63922fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_SETS, 64022fe2c88SJonathan Adams DATA_TYPE_UINT32_ARRAY, eip->zei_range_count, eip->zei_range_sets, 64122fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_BAD_RANGE_CLEARS, 64222fe2c88SJonathan Adams DATA_TYPE_UINT32_ARRAY, eip->zei_range_count, eip->zei_range_clears, 64322fe2c88SJonathan Adams NULL); 64422fe2c88SJonathan Adams 64522fe2c88SJonathan Adams if (!no_inline) { 64622fe2c88SJonathan Adams fm_payload_set(ereport, 64722fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_BAD_SET_BITS, 64822fe2c88SJonathan Adams DATA_TYPE_UINT8_ARRAY, 64922fe2c88SJonathan Adams inline_size, (uint8_t *)eip->zei_bits_set, 65022fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_BITS, 65122fe2c88SJonathan Adams DATA_TYPE_UINT8_ARRAY, 65222fe2c88SJonathan Adams inline_size, (uint8_t *)eip->zei_bits_cleared, 65322fe2c88SJonathan Adams NULL); 65422fe2c88SJonathan Adams } else { 65522fe2c88SJonathan Adams fm_payload_set(ereport, 65622fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_BAD_SET_HISTOGRAM, 65722fe2c88SJonathan Adams DATA_TYPE_UINT16_ARRAY, 65822fe2c88SJonathan Adams NBBY * sizeof (uint64_t), eip->zei_histogram_set, 65922fe2c88SJonathan Adams FM_EREPORT_PAYLOAD_ZFS_BAD_CLEARED_HISTOGRAM, 66022fe2c88SJonathan Adams DATA_TYPE_UINT16_ARRAY, 66122fe2c88SJonathan Adams NBBY * sizeof (uint64_t), eip->zei_histogram_cleared, 66222fe2c88SJonathan Adams NULL); 66322fe2c88SJonathan Adams } 66422fe2c88SJonathan Adams return (eip); 66522fe2c88SJonathan Adams } 66622fe2c88SJonathan Adams #endif 66722fe2c88SJonathan Adams 66822fe2c88SJonathan Adams void 66922fe2c88SJonathan Adams zfs_ereport_post(const char *subclass, spa_t *spa, vdev_t *vd, zio_t *zio, 67022fe2c88SJonathan Adams uint64_t stateoroffset, uint64_t size) 67122fe2c88SJonathan Adams { 67222fe2c88SJonathan Adams #ifdef _KERNEL 67322fe2c88SJonathan Adams nvlist_t *ereport = NULL; 67422fe2c88SJonathan Adams nvlist_t *detector = NULL; 67522fe2c88SJonathan Adams 67622fe2c88SJonathan Adams zfs_ereport_start(&ereport, &detector, 67722fe2c88SJonathan Adams subclass, spa, vd, zio, stateoroffset, size); 67822fe2c88SJonathan Adams 67922fe2c88SJonathan Adams if (ereport == NULL) 68022fe2c88SJonathan Adams return; 68122fe2c88SJonathan Adams 682ea8dc4b6Seschrock fm_ereport_post(ereport, EVCH_SLEEP); 683ea8dc4b6Seschrock 684ea8dc4b6Seschrock fm_nvlist_destroy(ereport, FM_NVA_FREE); 685ea8dc4b6Seschrock fm_nvlist_destroy(detector, FM_NVA_FREE); 686ea8dc4b6Seschrock #endif 687ea8dc4b6Seschrock } 688ea8dc4b6Seschrock 68922fe2c88SJonathan Adams void 69022fe2c88SJonathan Adams zfs_ereport_start_checksum(spa_t *spa, vdev_t *vd, 69122fe2c88SJonathan Adams struct zio *zio, uint64_t offset, uint64_t length, void *arg, 69222fe2c88SJonathan Adams zio_bad_cksum_t *info) 69322fe2c88SJonathan Adams { 69422fe2c88SJonathan Adams zio_cksum_report_t *report = kmem_zalloc(sizeof (*report), KM_SLEEP); 69522fe2c88SJonathan Adams 69622fe2c88SJonathan Adams if (zio->io_vsd != NULL) 69722fe2c88SJonathan Adams zio->io_vsd_ops->vsd_cksum_report(zio, report, arg); 69822fe2c88SJonathan Adams else 69922fe2c88SJonathan Adams zio_vsd_default_cksum_report(zio, report, arg); 70022fe2c88SJonathan Adams 70122fe2c88SJonathan Adams /* copy the checksum failure information if it was provided */ 70222fe2c88SJonathan Adams if (info != NULL) { 70322fe2c88SJonathan Adams report->zcr_ckinfo = kmem_zalloc(sizeof (*info), KM_SLEEP); 70422fe2c88SJonathan Adams bcopy(info, report->zcr_ckinfo, sizeof (*info)); 70522fe2c88SJonathan Adams } 70622fe2c88SJonathan Adams 707b24ab676SJeff Bonwick report->zcr_align = 1ULL << vd->vdev_top->vdev_ashift; 70822fe2c88SJonathan Adams report->zcr_length = length; 70922fe2c88SJonathan Adams 71022fe2c88SJonathan Adams #ifdef _KERNEL 71122fe2c88SJonathan Adams zfs_ereport_start(&report->zcr_ereport, &report->zcr_detector, 71222fe2c88SJonathan Adams FM_EREPORT_ZFS_CHECKSUM, spa, vd, zio, offset, length); 71322fe2c88SJonathan Adams 71422fe2c88SJonathan Adams if (report->zcr_ereport == NULL) { 71522fe2c88SJonathan Adams report->zcr_free(report->zcr_cbdata, report->zcr_cbinfo); 716*cd0837ccSGeorge Wilson if (report->zcr_ckinfo != NULL) { 717*cd0837ccSGeorge Wilson kmem_free(report->zcr_ckinfo, 718*cd0837ccSGeorge Wilson sizeof (*report->zcr_ckinfo)); 719*cd0837ccSGeorge Wilson } 72022fe2c88SJonathan Adams kmem_free(report, sizeof (*report)); 72122fe2c88SJonathan Adams return; 72222fe2c88SJonathan Adams } 72322fe2c88SJonathan Adams #endif 72422fe2c88SJonathan Adams 72522fe2c88SJonathan Adams mutex_enter(&spa->spa_errlist_lock); 72622fe2c88SJonathan Adams report->zcr_next = zio->io_logical->io_cksum_report; 72722fe2c88SJonathan Adams zio->io_logical->io_cksum_report = report; 72822fe2c88SJonathan Adams mutex_exit(&spa->spa_errlist_lock); 72922fe2c88SJonathan Adams } 73022fe2c88SJonathan Adams 73122fe2c88SJonathan Adams void 73222fe2c88SJonathan Adams zfs_ereport_finish_checksum(zio_cksum_report_t *report, 73322fe2c88SJonathan Adams const void *good_data, const void *bad_data, boolean_t drop_if_identical) 73422fe2c88SJonathan Adams { 73522fe2c88SJonathan Adams #ifdef _KERNEL 73622fe2c88SJonathan Adams zfs_ecksum_info_t *info = NULL; 73722fe2c88SJonathan Adams info = annotate_ecksum(report->zcr_ereport, report->zcr_ckinfo, 73822fe2c88SJonathan Adams good_data, bad_data, report->zcr_length, drop_if_identical); 73922fe2c88SJonathan Adams 74022fe2c88SJonathan Adams if (info != NULL) 74122fe2c88SJonathan Adams fm_ereport_post(report->zcr_ereport, EVCH_SLEEP); 74222fe2c88SJonathan Adams 74322fe2c88SJonathan Adams fm_nvlist_destroy(report->zcr_ereport, FM_NVA_FREE); 74422fe2c88SJonathan Adams fm_nvlist_destroy(report->zcr_detector, FM_NVA_FREE); 74522fe2c88SJonathan Adams report->zcr_ereport = report->zcr_detector = NULL; 74622fe2c88SJonathan Adams 74722fe2c88SJonathan Adams if (info != NULL) 74822fe2c88SJonathan Adams kmem_free(info, sizeof (*info)); 74922fe2c88SJonathan Adams #endif 75022fe2c88SJonathan Adams } 75122fe2c88SJonathan Adams 75222fe2c88SJonathan Adams void 75322fe2c88SJonathan Adams zfs_ereport_free_checksum(zio_cksum_report_t *rpt) 75422fe2c88SJonathan Adams { 75522fe2c88SJonathan Adams #ifdef _KERNEL 75622fe2c88SJonathan Adams if (rpt->zcr_ereport != NULL) { 75722fe2c88SJonathan Adams fm_nvlist_destroy(rpt->zcr_ereport, 75822fe2c88SJonathan Adams FM_NVA_FREE); 75922fe2c88SJonathan Adams fm_nvlist_destroy(rpt->zcr_detector, 76022fe2c88SJonathan Adams FM_NVA_FREE); 76122fe2c88SJonathan Adams } 76222fe2c88SJonathan Adams #endif 76322fe2c88SJonathan Adams rpt->zcr_free(rpt->zcr_cbdata, rpt->zcr_cbinfo); 76422fe2c88SJonathan Adams 76522fe2c88SJonathan Adams if (rpt->zcr_ckinfo != NULL) 76622fe2c88SJonathan Adams kmem_free(rpt->zcr_ckinfo, sizeof (*rpt->zcr_ckinfo)); 76722fe2c88SJonathan Adams 76822fe2c88SJonathan Adams kmem_free(rpt, sizeof (*rpt)); 76922fe2c88SJonathan Adams } 77022fe2c88SJonathan Adams 77122fe2c88SJonathan Adams void 77222fe2c88SJonathan Adams zfs_ereport_send_interim_checksum(zio_cksum_report_t *report) 77322fe2c88SJonathan Adams { 77422fe2c88SJonathan Adams #ifdef _KERNEL 77522fe2c88SJonathan Adams fm_ereport_post(report->zcr_ereport, EVCH_SLEEP); 77622fe2c88SJonathan Adams #endif 77722fe2c88SJonathan Adams } 77822fe2c88SJonathan Adams 77922fe2c88SJonathan Adams void 78022fe2c88SJonathan Adams zfs_ereport_post_checksum(spa_t *spa, vdev_t *vd, 78122fe2c88SJonathan Adams struct zio *zio, uint64_t offset, uint64_t length, 78222fe2c88SJonathan Adams const void *good_data, const void *bad_data, zio_bad_cksum_t *zbc) 78322fe2c88SJonathan Adams { 78422fe2c88SJonathan Adams #ifdef _KERNEL 78522fe2c88SJonathan Adams nvlist_t *ereport = NULL; 78622fe2c88SJonathan Adams nvlist_t *detector = NULL; 78722fe2c88SJonathan Adams zfs_ecksum_info_t *info; 78822fe2c88SJonathan Adams 78922fe2c88SJonathan Adams zfs_ereport_start(&ereport, &detector, 79022fe2c88SJonathan Adams FM_EREPORT_ZFS_CHECKSUM, spa, vd, zio, offset, length); 79122fe2c88SJonathan Adams 79222fe2c88SJonathan Adams if (ereport == NULL) 79322fe2c88SJonathan Adams return; 79422fe2c88SJonathan Adams 79522fe2c88SJonathan Adams info = annotate_ecksum(ereport, zbc, good_data, bad_data, length, 79622fe2c88SJonathan Adams B_FALSE); 79722fe2c88SJonathan Adams 79822fe2c88SJonathan Adams if (info != NULL) 79922fe2c88SJonathan Adams fm_ereport_post(ereport, EVCH_SLEEP); 80022fe2c88SJonathan Adams 80122fe2c88SJonathan Adams fm_nvlist_destroy(ereport, FM_NVA_FREE); 80222fe2c88SJonathan Adams fm_nvlist_destroy(detector, FM_NVA_FREE); 80322fe2c88SJonathan Adams 80422fe2c88SJonathan Adams if (info != NULL) 80522fe2c88SJonathan Adams kmem_free(info, sizeof (*info)); 80622fe2c88SJonathan Adams #endif 80722fe2c88SJonathan Adams } 80822fe2c88SJonathan Adams 8093d7072f8Seschrock static void 8103d7072f8Seschrock zfs_post_common(spa_t *spa, vdev_t *vd, const char *name) 811ea8dc4b6Seschrock { 812ea8dc4b6Seschrock #ifdef _KERNEL 813ea8dc4b6Seschrock nvlist_t *resource; 814ea8dc4b6Seschrock char class[64]; 815ea8dc4b6Seschrock 816b16da2e2SGeorge Wilson if (spa_load_state(spa) == SPA_LOAD_TRYIMPORT) 8171d713200SEric Schrock return; 8181d713200SEric Schrock 819ea8dc4b6Seschrock if ((resource = fm_nvlist_create(NULL)) == NULL) 820ea8dc4b6Seschrock return; 821ea8dc4b6Seschrock 822ea8dc4b6Seschrock (void) snprintf(class, sizeof (class), "%s.%s.%s", FM_RSRC_RESOURCE, 8233d7072f8Seschrock ZFS_ERROR_CLASS, name); 824ea8dc4b6Seschrock VERIFY(nvlist_add_uint8(resource, FM_VERSION, FM_RSRC_VERSION) == 0); 825ea8dc4b6Seschrock VERIFY(nvlist_add_string(resource, FM_CLASS, class) == 0); 826ea8dc4b6Seschrock VERIFY(nvlist_add_uint64(resource, 827ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_POOL_GUID, spa_guid(spa)) == 0); 828ea8dc4b6Seschrock if (vd) 829ea8dc4b6Seschrock VERIFY(nvlist_add_uint64(resource, 830ea8dc4b6Seschrock FM_EREPORT_PAYLOAD_ZFS_VDEV_GUID, vd->vdev_guid) == 0); 831ea8dc4b6Seschrock 832ea8dc4b6Seschrock fm_ereport_post(resource, EVCH_SLEEP); 833ea8dc4b6Seschrock 834ea8dc4b6Seschrock fm_nvlist_destroy(resource, FM_NVA_FREE); 835ea8dc4b6Seschrock #endif 836ea8dc4b6Seschrock } 8373d7072f8Seschrock 8383d7072f8Seschrock /* 8393d7072f8Seschrock * The 'resource.fs.zfs.removed' event is an internal signal that the given vdev 8403d7072f8Seschrock * has been removed from the system. This will cause the DE to ignore any 8413d7072f8Seschrock * recent I/O errors, inferring that they are due to the asynchronous device 8423d7072f8Seschrock * removal. 8433d7072f8Seschrock */ 8443d7072f8Seschrock void 8453d7072f8Seschrock zfs_post_remove(spa_t *spa, vdev_t *vd) 8463d7072f8Seschrock { 8473d7072f8Seschrock zfs_post_common(spa, vd, FM_RESOURCE_REMOVED); 8483d7072f8Seschrock } 8493d7072f8Seschrock 8503d7072f8Seschrock /* 8513d7072f8Seschrock * The 'resource.fs.zfs.autoreplace' event is an internal signal that the pool 8523d7072f8Seschrock * has the 'autoreplace' property set, and therefore any broken vdevs will be 8533d7072f8Seschrock * handled by higher level logic, and no vdev fault should be generated. 8543d7072f8Seschrock */ 8553d7072f8Seschrock void 8563d7072f8Seschrock zfs_post_autoreplace(spa_t *spa, vdev_t *vd) 8573d7072f8Seschrock { 8583d7072f8Seschrock zfs_post_common(spa, vd, FM_RESOURCE_AUTOREPLACE); 8593d7072f8Seschrock } 860069f55e2SEric Schrock 861069f55e2SEric Schrock /* 862069f55e2SEric Schrock * The 'resource.fs.zfs.statechange' event is an internal signal that the 863069f55e2SEric Schrock * given vdev has transitioned its state to DEGRADED or HEALTHY. This will 864069f55e2SEric Schrock * cause the retire agent to repair any outstanding fault management cases 865069f55e2SEric Schrock * open because the device was not found (fault.fs.zfs.device). 866069f55e2SEric Schrock */ 867069f55e2SEric Schrock void 868069f55e2SEric Schrock zfs_post_state_change(spa_t *spa, vdev_t *vd) 869069f55e2SEric Schrock { 870069f55e2SEric Schrock zfs_post_common(spa, vd, FM_RESOURCE_STATECHANGE); 871069f55e2SEric Schrock } 872