From a586cb4937fa328a857c8d7fbefb986d347bd4a7 Mon Sep 17 00:00:00 2001 From: Yasunori Goto Date: Fri, 22 Sep 2017 16:46:26 +0900 Subject: nfit_test Make private definitions to command emulation Move private definitions to command emulation. These definitions were originally defined at include/uapi/linux/ndctl.h, but they are used at only nfit_test emulation now. Signed-off-by: Yasunori Goto Reviewed-by: Vishal Verma Signed-off-by: Dan Williams --- tools/testing/nvdimm/test/nfit_test.h | 47 +++++++++++++++++++++++++++++++++++ 1 file changed, 47 insertions(+) (limited to 'tools/testing/nvdimm/test') diff --git a/tools/testing/nvdimm/test/nfit_test.h b/tools/testing/nvdimm/test/nfit_test.h index d3d63dd5ed38..52c83be9dcfa 100644 --- a/tools/testing/nvdimm/test/nfit_test.h +++ b/tools/testing/nvdimm/test/nfit_test.h @@ -32,6 +32,53 @@ struct nfit_test_resource { void *buf; }; +#define ND_TRANSLATE_SPA_STATUS_INVALID_SPA 2 + +/* 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; -- cgit v1.2.3-59-g8ed1b From 10246dc84dfcabb05f2d29d442c9de967fd61270 Mon Sep 17 00:00:00 2001 From: Yasunori Goto Date: Fri, 22 Sep 2017 16:48:38 +0900 Subject: acpi nfit: nfit_test supports translate SPA To test ndctl list which use interface of Translate SPA, nfit_test needs to emulates it. This test module searches region which includes SPA and returns 1 dimm handle which is last one. Signed-off-by: Yasunori Goto Reviewed-by: Vishal Verma Signed-off-by: Dan Williams --- tools/testing/nvdimm/test/nfit.c | 104 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 103 insertions(+), 1 deletion(-) (limited to 'tools/testing/nvdimm/test') diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index bef419d4266d..3a3bad348d56 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -342,6 +342,84 @@ static int nfit_test_cmd_clear_error(struct nd_cmd_clear_error *clear_err, 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 = { @@ -449,6 +527,26 @@ 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; + default: + return -ENOTTY; + } + } if (!nd_desc || !test_bit(cmd, &nd_desc->cmd_mask)) return -ENOTTY; @@ -1430,7 +1528,9 @@ 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); } static void nfit_test1_setup(struct nfit_test *t) @@ -1613,10 +1713,12 @@ 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, }, .dev = &adev->dev, }; -- cgit v1.2.3-59-g8ed1b From 9fb1a1903345fea598f48277576a3589a972b72e Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Mon, 30 Oct 2017 13:22:20 -0700 Subject: nfit_test: add error injection DSMs Add nfit_test emulation for the new ACPI 6.2 error injectino DSMs. This will allow unit tests to selectively inject the errors they wish to test for. Signed-off-by: Dave Jiang [vishal: Move injection functions to ND_CMD_CALL] [vishal: Add support for the notification option] [vishal: move an nfit_test private definition into a local header] Signed-off-by: Vishal Verma Signed-off-by: Dan Williams --- tools/testing/nvdimm/test/nfit.c | 187 +++++++++++++++++++++++++++++----- tools/testing/nvdimm/test/nfit_test.h | 5 + 2 files changed, 168 insertions(+), 24 deletions(-) (limited to 'tools/testing/nvdimm/test') diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index 3a3bad348d56..788b1a5d6c5a 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; } @@ -456,6 +480,93 @@ 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) @@ -543,6 +654,18 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, 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; } @@ -556,8 +679,8 @@ 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, @@ -664,10 +787,9 @@ 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); @@ -1517,7 +1639,8 @@ 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); @@ -1531,6 +1654,9 @@ static void nfit_test0_setup(struct nfit_test *t) 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) @@ -1620,7 +1746,8 @@ 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); @@ -1718,7 +1845,10 @@ static int nfit_ctl_test(struct device *dev) .module = THIS_MODULE, .provider_name = "ACPI.NFIT", .ndctl = acpi_nfit_ctl, - .bus_dsm_mask = 1UL << NFIT_CMD_TRANSLATE_SPA, + .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, }; @@ -2017,6 +2147,10 @@ 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); @@ -2033,6 +2167,7 @@ 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; @@ -2068,6 +2203,7 @@ 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); @@ -2076,6 +2212,7 @@ 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); @@ -2091,6 +2228,8 @@ 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 52c83be9dcfa..113b44675a71 100644 --- a/tools/testing/nvdimm/test/nfit_test.h +++ b/tools/testing/nvdimm/test/nfit_test.h @@ -33,6 +33,11 @@ struct nfit_test_resource { }; #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 { -- cgit v1.2.3-59-g8ed1b From 5e096ef3b29e6113a7aa6a7dc4871987efa99bcb Mon Sep 17 00:00:00 2001 From: Vishal Verma Date: Mon, 30 Oct 2017 13:22:23 -0700 Subject: nfit_test: when clearing poison, also remove badrange entries The injected badrange entries can only be cleared from the kernel's accounting by writing to the affected blocks, so when such a write sends the clear errror DSM to nfit_test, also clear the ranges from nfit_test's badrange list. This lets an 'ARS Inject error status' DSM to return the correct status, omitting the cleared ranges. Cc: Dave Jiang Cc: Dan Williams Signed-off-by: Vishal Verma Reviewed-by: Dave Jiang Signed-off-by: Dan Williams --- tools/testing/nvdimm/test/nfit.c | 12 ++++-------- 1 file changed, 4 insertions(+), 8 deletions(-) (limited to 'tools/testing/nvdimm/test') diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index 788b1a5d6c5a..79c5cb23693f 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -344,7 +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; @@ -354,12 +355,7 @@ 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; @@ -687,7 +683,7 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, 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; -- cgit v1.2.3-59-g8ed1b From 41cb3301c04d7f0b046ed296a34ef261c456dde8 Mon Sep 17 00:00:00 2001 From: Vishal Verma Date: Tue, 7 Nov 2017 15:48:21 -0700 Subject: tools/testing/nvdimm: stricter bounds checking for error injection commands Ensure that the in/out sizes passed in the nd_cmd_package are sane for the fixed output size commands (i.e. inject error and clear injected error). Reported-by: Dariusz Dokupil Signed-off-by: Vishal Verma Signed-off-by: Dan Williams --- tools/testing/nvdimm/test/nfit.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'tools/testing/nvdimm/test') diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index 79c5cb23693f..edab68c2e221 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -488,7 +488,7 @@ static int nfit_test_cmd_ars_error_inject(struct nfit_test *t, { int rc; - if (buf_len < sizeof(*err_inj)) { + if (buf_len != sizeof(*err_inj)) { rc = -EINVAL; goto err; } @@ -519,7 +519,7 @@ static int nfit_test_cmd_ars_inject_clear(struct nfit_test *t, { int rc; - if (buf_len < sizeof(*err_clr)) { + if (buf_len != sizeof(*err_clr)) { rc = -EINVAL; goto err; } -- cgit v1.2.3-59-g8ed1b From fb2a1748355161e050e9f49f1ea9a0ae707a148b Mon Sep 17 00:00:00 2001 From: Dan Williams Date: Sun, 12 Nov 2017 14:54:23 -0800 Subject: tools/testing/nvdimm: unit test clear-error commands Validate command parsing in acpi_nfit_ctl for the clear error command. This tests for a crash condition introduced by commit 4b27db7e26cd "acpi, nfit: add support for the _LSI, _LSR, and _LSW label methods". Cc: Vishal Verma Signed-off-by: Dan Williams --- tools/testing/nvdimm/test/nfit.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+) (limited to 'tools/testing/nvdimm/test') diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index edab68c2e221..7217b2b953b5 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -1812,6 +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) @@ -1995,6 +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; } -- cgit v1.2.3-59-g8ed1b