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author | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-17 09:51:57 -0800 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2017-11-17 09:51:57 -0800 |
commit | a3841f94c7ecb3ede0f888d3fcfe8fb6368ddd7a (patch) | |
tree | 6625eedf10d0672068ee218bb893a5a0e1803df2 /tools/testing/nvdimm | |
parent | adeba81ac2a6451f44545874da3d181081f0ab04 (diff) | |
parent | 4247f24c23589bcc3bc3490515ef8c9497e9ae55 (diff) | |
download | linux-a3841f94c7ecb3ede0f888d3fcfe8fb6368ddd7a.tar.gz linux-a3841f94c7ecb3ede0f888d3fcfe8fb6368ddd7a.tar.bz2 linux-a3841f94c7ecb3ede0f888d3fcfe8fb6368ddd7a.zip |
Merge tag 'libnvdimm-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm and dax updates from Dan Williams:
"Save for a few late fixes, all of these commits have shipped in -next
releases since before the merge window opened, and 0day has given a
build success notification.
The ext4 touches came from Jan, and the xfs touches have Darrick's
reviewed-by. An xfstest for the MAP_SYNC feature has been through
a few round of reviews and is on track to be merged.
- Introduce MAP_SYNC and MAP_SHARED_VALIDATE, a mechanism to enable
'userspace flush' of persistent memory updates via filesystem-dax
mappings. It arranges for any filesystem metadata updates that may
be required to satisfy a write fault to also be flushed ("on disk")
before the kernel returns to userspace from the fault handler.
Effectively every write-fault that dirties metadata completes an
fsync() before returning from the fault handler. The new
MAP_SHARED_VALIDATE mapping type guarantees that the MAP_SYNC flag
is validated as supported by the filesystem's ->mmap() file
operation.
- Add support for the standard ACPI 6.2 label access methods that
replace the NVDIMM_FAMILY_INTEL (vendor specific) label methods.
This enables interoperability with environments that only implement
the standardized methods.
- Add support for the ACPI 6.2 NVDIMM media error injection methods.
- Add support for the NVDIMM_FAMILY_INTEL v1.6 DIMM commands for
latch last shutdown status, firmware update, SMART error injection,
and SMART alarm threshold control.
- Cleanup physical address information disclosures to be root-only.
- Fix revalidation of the DIMM "locked label area" status to support
dynamic unlock of the label area.
- Expand unit test infrastructure to mock the ACPI 6.2 Translate SPA
(system-physical-address) command and error injection commands.
Acknowledgements that came after the commits were pushed to -next:
- 957ac8c421ad ("dax: fix PMD faults on zero-length files"):
Reviewed-by: Ross Zwisler <ross.zwisler@linux.intel.com>
- a39e596baa07 ("xfs: support for synchronous DAX faults") and
7b565c9f965b ("xfs: Implement xfs_filemap_pfn_mkwrite() using __xfs_filemap_fault()")
Reviewed-by: Darrick J. Wong <darrick.wong@oracle.com>"
* tag 'libnvdimm-for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm: (49 commits)
acpi, nfit: add 'Enable Latch System Shutdown Status' command support
dax: fix general protection fault in dax_alloc_inode
dax: fix PMD faults on zero-length files
dax: stop requiring a live device for dax_flush()
brd: remove dax support
dax: quiet bdev_dax_supported()
fs, dax: unify IOMAP_F_DIRTY read vs write handling policy in the dax core
tools/testing/nvdimm: unit test clear-error commands
acpi, nfit: validate commands against the device type
tools/testing/nvdimm: stricter bounds checking for error injection commands
xfs: support for synchronous DAX faults
xfs: Implement xfs_filemap_pfn_mkwrite() using __xfs_filemap_fault()
ext4: Support for synchronous DAX faults
ext4: Simplify error handling in ext4_dax_huge_fault()
dax: Implement dax_finish_sync_fault()
dax, iomap: Add support for synchronous faults
mm: Define MAP_SYNC and VM_SYNC flags
dax: Allow tuning whether dax_insert_mapping_entry() dirties entry
dax: Allow dax_iomap_fault() to return pfn
dax: Fix comment describing dax_iomap_fault()
...
Diffstat (limited to 'tools/testing/nvdimm')
-rw-r--r-- | tools/testing/nvdimm/Kbuild | 1 | ||||
-rw-r--r-- | tools/testing/nvdimm/test/nfit.c | 319 | ||||
-rw-r--r-- | tools/testing/nvdimm/test/nfit_test.h | 52 |
3 files changed, 340 insertions, 32 deletions
diff --git a/tools/testing/nvdimm/Kbuild b/tools/testing/nvdimm/Kbuild index 65368d9027f5..db33b28c5ef3 100644 --- a/tools/testing/nvdimm/Kbuild +++ b/tools/testing/nvdimm/Kbuild @@ -70,6 +70,7 @@ libnvdimm-y += $(NVDIMM_SRC)/region_devs.o libnvdimm-y += $(NVDIMM_SRC)/region.o libnvdimm-y += $(NVDIMM_SRC)/namespace_devs.o libnvdimm-y += $(NVDIMM_SRC)/label.o +libnvdimm-y += $(NVDIMM_SRC)/badrange.o libnvdimm-$(CONFIG_ND_CLAIM) += $(NVDIMM_SRC)/claim.o libnvdimm-$(CONFIG_BTT) += $(NVDIMM_SRC)/btt_devs.o libnvdimm-$(CONFIG_NVDIMM_PFN) += $(NVDIMM_SRC)/pfn_devs.o diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index bef419d4266d..7217b2b953b5 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -168,8 +168,12 @@ struct nfit_test { spinlock_t lock; } ars_state; struct device *dimm_dev[NUM_DCR]; + struct badrange badrange; + struct work_struct work; }; +static struct workqueue_struct *nfit_wq; + static struct nfit_test *to_nfit_test(struct device *dev) { struct platform_device *pdev = to_platform_device(dev); @@ -234,48 +238,68 @@ static int nfit_test_cmd_set_config_data(struct nd_cmd_set_config_hdr *nd_cmd, return rc; } -#define NFIT_TEST_ARS_RECORDS 4 #define NFIT_TEST_CLEAR_ERR_UNIT 256 static int nfit_test_cmd_ars_cap(struct nd_cmd_ars_cap *nd_cmd, unsigned int buf_len) { + int ars_recs; + if (buf_len < sizeof(*nd_cmd)) return -EINVAL; + /* for testing, only store up to n records that fit within 4k */ + ars_recs = SZ_4K / sizeof(struct nd_ars_record); + nd_cmd->max_ars_out = sizeof(struct nd_cmd_ars_status) - + NFIT_TEST_ARS_RECORDS * sizeof(struct nd_ars_record); + + ars_recs * sizeof(struct nd_ars_record); nd_cmd->status = (ND_ARS_PERSISTENT | ND_ARS_VOLATILE) << 16; nd_cmd->clear_err_unit = NFIT_TEST_CLEAR_ERR_UNIT; return 0; } -/* - * Initialize the ars_state to return an ars_result 1 second in the future with - * a 4K error range in the middle of the requested address range. - */ -static void post_ars_status(struct ars_state *ars_state, u64 addr, u64 len) +static void post_ars_status(struct ars_state *ars_state, + struct badrange *badrange, u64 addr, u64 len) { struct nd_cmd_ars_status *ars_status; struct nd_ars_record *ars_record; + struct badrange_entry *be; + u64 end = addr + len - 1; + int i = 0; ars_state->deadline = jiffies + 1*HZ; ars_status = ars_state->ars_status; ars_status->status = 0; - ars_status->out_length = sizeof(struct nd_cmd_ars_status) - + sizeof(struct nd_ars_record); ars_status->address = addr; ars_status->length = len; ars_status->type = ND_ARS_PERSISTENT; - ars_status->num_records = 1; - ars_record = &ars_status->records[0]; - ars_record->handle = 0; - ars_record->err_address = addr + len / 2; - ars_record->length = SZ_4K; + + spin_lock(&badrange->lock); + list_for_each_entry(be, &badrange->list, list) { + u64 be_end = be->start + be->length - 1; + u64 rstart, rend; + + /* skip entries outside the range */ + if (be_end < addr || be->start > end) + continue; + + rstart = (be->start < addr) ? addr : be->start; + rend = (be_end < end) ? be_end : end; + ars_record = &ars_status->records[i]; + ars_record->handle = 0; + ars_record->err_address = rstart; + ars_record->length = rend - rstart + 1; + i++; + } + spin_unlock(&badrange->lock); + ars_status->num_records = i; + ars_status->out_length = sizeof(struct nd_cmd_ars_status) + + i * sizeof(struct nd_ars_record); } -static int nfit_test_cmd_ars_start(struct ars_state *ars_state, +static int nfit_test_cmd_ars_start(struct nfit_test *t, + struct ars_state *ars_state, struct nd_cmd_ars_start *ars_start, unsigned int buf_len, int *cmd_rc) { @@ -289,7 +313,7 @@ static int nfit_test_cmd_ars_start(struct ars_state *ars_state, } else { ars_start->status = 0; ars_start->scrub_time = 1; - post_ars_status(ars_state, ars_start->address, + post_ars_status(ars_state, &t->badrange, ars_start->address, ars_start->length); *cmd_rc = 0; } @@ -320,7 +344,8 @@ static int nfit_test_cmd_ars_status(struct ars_state *ars_state, return 0; } -static int nfit_test_cmd_clear_error(struct nd_cmd_clear_error *clear_err, +static int nfit_test_cmd_clear_error(struct nfit_test *t, + struct nd_cmd_clear_error *clear_err, unsigned int buf_len, int *cmd_rc) { const u64 mask = NFIT_TEST_CLEAR_ERR_UNIT - 1; @@ -330,18 +355,91 @@ static int nfit_test_cmd_clear_error(struct nd_cmd_clear_error *clear_err, if ((clear_err->address & mask) || (clear_err->length & mask)) return -EINVAL; - /* - * Report 'all clear' success for all commands even though a new - * scrub will find errors again. This is enough to have the - * error removed from the 'badblocks' tracking in the pmem - * driver. - */ + badrange_forget(&t->badrange, clear_err->address, clear_err->length); clear_err->status = 0; clear_err->cleared = clear_err->length; *cmd_rc = 0; return 0; } +struct region_search_spa { + u64 addr; + struct nd_region *region; +}; + +static int is_region_device(struct device *dev) +{ + return !strncmp(dev->kobj.name, "region", 6); +} + +static int nfit_test_search_region_spa(struct device *dev, void *data) +{ + struct region_search_spa *ctx = data; + struct nd_region *nd_region; + resource_size_t ndr_end; + + if (!is_region_device(dev)) + return 0; + + nd_region = to_nd_region(dev); + ndr_end = nd_region->ndr_start + nd_region->ndr_size; + + if (ctx->addr >= nd_region->ndr_start && ctx->addr < ndr_end) { + ctx->region = nd_region; + return 1; + } + + return 0; +} + +static int nfit_test_search_spa(struct nvdimm_bus *bus, + struct nd_cmd_translate_spa *spa) +{ + int ret; + struct nd_region *nd_region = NULL; + struct nvdimm *nvdimm = NULL; + struct nd_mapping *nd_mapping = NULL; + struct region_search_spa ctx = { + .addr = spa->spa, + .region = NULL, + }; + u64 dpa; + + ret = device_for_each_child(&bus->dev, &ctx, + nfit_test_search_region_spa); + + if (!ret) + return -ENODEV; + + nd_region = ctx.region; + + dpa = ctx.addr - nd_region->ndr_start; + + /* + * last dimm is selected for test + */ + nd_mapping = &nd_region->mapping[nd_region->ndr_mappings - 1]; + nvdimm = nd_mapping->nvdimm; + + spa->devices[0].nfit_device_handle = handle[nvdimm->id]; + spa->num_nvdimms = 1; + spa->devices[0].dpa = dpa; + + return 0; +} + +static int nfit_test_cmd_translate_spa(struct nvdimm_bus *bus, + struct nd_cmd_translate_spa *spa, unsigned int buf_len) +{ + if (buf_len < spa->translate_length) + return -EINVAL; + + if (nfit_test_search_spa(bus, spa) < 0 || !spa->num_nvdimms) + spa->status = 2; + + return 0; +} + static int nfit_test_cmd_smart(struct nd_cmd_smart *smart, unsigned int buf_len) { static const struct nd_smart_payload smart_data = { @@ -378,6 +476,93 @@ static int nfit_test_cmd_smart_threshold(struct nd_cmd_smart_threshold *smart_t, return 0; } +static void uc_error_notify(struct work_struct *work) +{ + struct nfit_test *t = container_of(work, typeof(*t), work); + + __acpi_nfit_notify(&t->pdev.dev, t, NFIT_NOTIFY_UC_MEMORY_ERROR); +} + +static int nfit_test_cmd_ars_error_inject(struct nfit_test *t, + struct nd_cmd_ars_err_inj *err_inj, unsigned int buf_len) +{ + int rc; + + if (buf_len != sizeof(*err_inj)) { + rc = -EINVAL; + goto err; + } + + if (err_inj->err_inj_spa_range_length <= 0) { + rc = -EINVAL; + goto err; + } + + rc = badrange_add(&t->badrange, err_inj->err_inj_spa_range_base, + err_inj->err_inj_spa_range_length); + if (rc < 0) + goto err; + + if (err_inj->err_inj_options & (1 << ND_ARS_ERR_INJ_OPT_NOTIFY)) + queue_work(nfit_wq, &t->work); + + err_inj->status = 0; + return 0; + +err: + err_inj->status = NFIT_ARS_INJECT_INVALID; + return rc; +} + +static int nfit_test_cmd_ars_inject_clear(struct nfit_test *t, + struct nd_cmd_ars_err_inj_clr *err_clr, unsigned int buf_len) +{ + int rc; + + if (buf_len != sizeof(*err_clr)) { + rc = -EINVAL; + goto err; + } + + if (err_clr->err_inj_clr_spa_range_length <= 0) { + rc = -EINVAL; + goto err; + } + + badrange_forget(&t->badrange, err_clr->err_inj_clr_spa_range_base, + err_clr->err_inj_clr_spa_range_length); + + err_clr->status = 0; + return 0; + +err: + err_clr->status = NFIT_ARS_INJECT_INVALID; + return rc; +} + +static int nfit_test_cmd_ars_inject_status(struct nfit_test *t, + struct nd_cmd_ars_err_inj_stat *err_stat, + unsigned int buf_len) +{ + struct badrange_entry *be; + int max = SZ_4K / sizeof(struct nd_error_stat_query_record); + int i = 0; + + err_stat->status = 0; + spin_lock(&t->badrange.lock); + list_for_each_entry(be, &t->badrange.list, list) { + err_stat->record[i].err_inj_stat_spa_range_base = be->start; + err_stat->record[i].err_inj_stat_spa_range_length = be->length; + i++; + if (i > max) + break; + } + spin_unlock(&t->badrange.lock); + err_stat->inj_err_rec_count = i; + + return 0; +} + static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, struct nvdimm *nvdimm, unsigned int cmd, void *buf, unsigned int buf_len, int *cmd_rc) @@ -449,6 +634,38 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, } } else { struct ars_state *ars_state = &t->ars_state; + struct nd_cmd_pkg *call_pkg = buf; + + if (!nd_desc) + return -ENOTTY; + + if (cmd == ND_CMD_CALL) { + func = call_pkg->nd_command; + + buf_len = call_pkg->nd_size_in + call_pkg->nd_size_out; + buf = (void *) call_pkg->nd_payload; + + switch (func) { + case NFIT_CMD_TRANSLATE_SPA: + rc = nfit_test_cmd_translate_spa( + acpi_desc->nvdimm_bus, buf, buf_len); + return rc; + case NFIT_CMD_ARS_INJECT_SET: + rc = nfit_test_cmd_ars_error_inject(t, buf, + buf_len); + return rc; + case NFIT_CMD_ARS_INJECT_CLEAR: + rc = nfit_test_cmd_ars_inject_clear(t, buf, + buf_len); + return rc; + case NFIT_CMD_ARS_INJECT_GET: + rc = nfit_test_cmd_ars_inject_status(t, buf, + buf_len); + return rc; + default: + return -ENOTTY; + } + } if (!nd_desc || !test_bit(cmd, &nd_desc->cmd_mask)) return -ENOTTY; @@ -458,15 +675,15 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, rc = nfit_test_cmd_ars_cap(buf, buf_len); break; case ND_CMD_ARS_START: - rc = nfit_test_cmd_ars_start(ars_state, buf, buf_len, - cmd_rc); + rc = nfit_test_cmd_ars_start(t, ars_state, buf, + buf_len, cmd_rc); break; case ND_CMD_ARS_STATUS: rc = nfit_test_cmd_ars_status(ars_state, buf, buf_len, cmd_rc); break; case ND_CMD_CLEAR_ERROR: - rc = nfit_test_cmd_clear_error(buf, buf_len, cmd_rc); + rc = nfit_test_cmd_clear_error(t, buf, buf_len, cmd_rc); break; default: return -ENOTTY; @@ -566,10 +783,9 @@ static struct nfit_test_resource *nfit_test_lookup(resource_size_t addr) static int ars_state_init(struct device *dev, struct ars_state *ars_state) { + /* for testing, only store up to n records that fit within 4k */ ars_state->ars_status = devm_kzalloc(dev, - sizeof(struct nd_cmd_ars_status) - + sizeof(struct nd_ars_record) * NFIT_TEST_ARS_RECORDS, - GFP_KERNEL); + sizeof(struct nd_cmd_ars_status) + SZ_4K, GFP_KERNEL); if (!ars_state->ars_status) return -ENOMEM; spin_lock_init(&ars_state->lock); @@ -1419,7 +1635,8 @@ static void nfit_test0_setup(struct nfit_test *t) + i * sizeof(u64); } - post_ars_status(&t->ars_state, t->spa_set_dma[0], SPA0_SIZE); + post_ars_status(&t->ars_state, &t->badrange, t->spa_set_dma[0], + SPA0_SIZE); acpi_desc = &t->acpi_desc; set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_cmd_force_en); @@ -1430,7 +1647,12 @@ static void nfit_test0_setup(struct nfit_test *t) set_bit(ND_CMD_ARS_START, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_CLEAR_ERROR, &acpi_desc->bus_cmd_force_en); + set_bit(ND_CMD_CALL, &acpi_desc->bus_cmd_force_en); set_bit(ND_CMD_SMART_THRESHOLD, &acpi_desc->dimm_cmd_force_en); + set_bit(NFIT_CMD_TRANSLATE_SPA, &acpi_desc->bus_nfit_cmd_force_en); + set_bit(NFIT_CMD_ARS_INJECT_SET, &acpi_desc->bus_nfit_cmd_force_en); + set_bit(NFIT_CMD_ARS_INJECT_CLEAR, &acpi_desc->bus_nfit_cmd_force_en); + set_bit(NFIT_CMD_ARS_INJECT_GET, &acpi_desc->bus_nfit_cmd_force_en); } static void nfit_test1_setup(struct nfit_test *t) @@ -1520,7 +1742,8 @@ static void nfit_test1_setup(struct nfit_test *t) dcr->code = NFIT_FIC_BYTE; dcr->windows = 0; - post_ars_status(&t->ars_state, t->spa_set_dma[0], SPA2_SIZE); + post_ars_status(&t->ars_state, &t->badrange, t->spa_set_dma[0], + SPA2_SIZE); acpi_desc = &t->acpi_desc; set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_cmd_force_en); @@ -1589,6 +1812,7 @@ static int nfit_ctl_test(struct device *dev) unsigned long mask, cmd_size, offset; union { struct nd_cmd_get_config_size cfg_size; + struct nd_cmd_clear_error clear_err; struct nd_cmd_ars_status ars_stat; struct nd_cmd_ars_cap ars_cap; char buf[sizeof(struct nd_cmd_ars_status) @@ -1613,10 +1837,15 @@ static int nfit_ctl_test(struct device *dev) .cmd_mask = 1UL << ND_CMD_ARS_CAP | 1UL << ND_CMD_ARS_START | 1UL << ND_CMD_ARS_STATUS - | 1UL << ND_CMD_CLEAR_ERROR, + | 1UL << ND_CMD_CLEAR_ERROR + | 1UL << ND_CMD_CALL, .module = THIS_MODULE, .provider_name = "ACPI.NFIT", .ndctl = acpi_nfit_ctl, + .bus_dsm_mask = 1UL << NFIT_CMD_TRANSLATE_SPA + | 1UL << NFIT_CMD_ARS_INJECT_SET + | 1UL << NFIT_CMD_ARS_INJECT_CLEAR + | 1UL << NFIT_CMD_ARS_INJECT_GET, }, .dev = &adev->dev, }; @@ -1767,6 +1996,23 @@ static int nfit_ctl_test(struct device *dev) return -EIO; } + /* test clear error */ + cmd_size = sizeof(cmds.clear_err); + cmds.clear_err = (struct nd_cmd_clear_error) { + .length = 512, + .cleared = 512, + }; + rc = setup_result(cmds.buf, cmd_size); + if (rc) + return rc; + rc = acpi_nfit_ctl(&acpi_desc->nd_desc, NULL, ND_CMD_CLEAR_ERROR, + cmds.buf, cmd_size, &cmd_rc); + if (rc < 0 || cmd_rc) { + dev_dbg(dev, "%s: failed at: %d rc: %d cmd_rc: %d\n", + __func__, __LINE__, rc, cmd_rc); + return -EIO; + } + return 0; } @@ -1915,6 +2161,10 @@ static __init int nfit_test_init(void) nfit_test_setup(nfit_test_lookup, nfit_test_evaluate_dsm); + nfit_wq = create_singlethread_workqueue("nfit"); + if (!nfit_wq) + return -ENOMEM; + nfit_test_dimm = class_create(THIS_MODULE, "nfit_test_dimm"); if (IS_ERR(nfit_test_dimm)) { rc = PTR_ERR(nfit_test_dimm); @@ -1931,6 +2181,7 @@ static __init int nfit_test_init(void) goto err_register; } INIT_LIST_HEAD(&nfit_test->resources); + badrange_init(&nfit_test->badrange); switch (i) { case 0: nfit_test->num_pm = NUM_PM; @@ -1966,6 +2217,7 @@ static __init int nfit_test_init(void) goto err_register; instances[i] = nfit_test; + INIT_WORK(&nfit_test->work, uc_error_notify); } rc = platform_driver_register(&nfit_test_driver); @@ -1974,6 +2226,7 @@ static __init int nfit_test_init(void) return 0; err_register: + destroy_workqueue(nfit_wq); for (i = 0; i < NUM_NFITS; i++) if (instances[i]) platform_device_unregister(&instances[i]->pdev); @@ -1989,6 +2242,8 @@ static __exit void nfit_test_exit(void) { int i; + flush_workqueue(nfit_wq); + destroy_workqueue(nfit_wq); for (i = 0; i < NUM_NFITS; i++) platform_device_unregister(&instances[i]->pdev); platform_driver_unregister(&nfit_test_driver); diff --git a/tools/testing/nvdimm/test/nfit_test.h b/tools/testing/nvdimm/test/nfit_test.h index d3d63dd5ed38..113b44675a71 100644 --- a/tools/testing/nvdimm/test/nfit_test.h +++ b/tools/testing/nvdimm/test/nfit_test.h @@ -32,6 +32,58 @@ struct nfit_test_resource { void *buf; }; +#define ND_TRANSLATE_SPA_STATUS_INVALID_SPA 2 +#define NFIT_ARS_INJECT_INVALID 2 + +enum err_inj_options { + ND_ARS_ERR_INJ_OPT_NOTIFY = 0, +}; + +/* nfit commands */ +enum nfit_cmd_num { + NFIT_CMD_TRANSLATE_SPA = 5, + NFIT_CMD_ARS_INJECT_SET = 7, + NFIT_CMD_ARS_INJECT_CLEAR = 8, + NFIT_CMD_ARS_INJECT_GET = 9, +}; + +struct nd_cmd_translate_spa { + __u64 spa; + __u32 status; + __u8 flags; + __u8 _reserved[3]; + __u64 translate_length; + __u32 num_nvdimms; + struct nd_nvdimm_device { + __u32 nfit_device_handle; + __u32 _reserved; + __u64 dpa; + } __packed devices[0]; + +} __packed; + +struct nd_cmd_ars_err_inj { + __u64 err_inj_spa_range_base; + __u64 err_inj_spa_range_length; + __u8 err_inj_options; + __u32 status; +} __packed; + +struct nd_cmd_ars_err_inj_clr { + __u64 err_inj_clr_spa_range_base; + __u64 err_inj_clr_spa_range_length; + __u32 status; +} __packed; + +struct nd_cmd_ars_err_inj_stat { + __u32 status; + __u32 inj_err_rec_count; + struct nd_error_stat_query_record { + __u64 err_inj_stat_spa_range_base; + __u64 err_inj_stat_spa_range_length; + } __packed record[0]; +} __packed; + union acpi_object; typedef void *acpi_handle; 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