diff options
| -rw-r--r-- | tools/testing/nvdimm/test/nfit.c | 79 |
1 files changed, 77 insertions, 2 deletions
diff --git a/tools/testing/nvdimm/test/nfit.c b/tools/testing/nvdimm/test/nfit.c index 99ea68674f0a..175fc24f8f3a 100644 --- a/tools/testing/nvdimm/test/nfit.c +++ b/tools/testing/nvdimm/test/nfit.c @@ -132,6 +132,8 @@ static u32 handle[NUM_DCR] = { [4] = NFIT_DIMM_HANDLE(0, 1, 0, 0, 0), }; +static unsigned long dimm_fail_cmd_flags[NUM_DCR]; + struct nfit_test { struct acpi_nfit_desc acpi_desc; struct platform_device pdev; @@ -414,6 +416,9 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, if (i >= ARRAY_SIZE(handle)) return -ENXIO; + if ((1 << func) & dimm_fail_cmd_flags[i]) + return -EIO; + switch (func) { case ND_CMD_GET_CONFIG_SIZE: rc = nfit_test_cmd_get_config_size(buf, buf_len); @@ -582,6 +587,74 @@ static void put_dimms(void *data) static struct class *nfit_test_dimm; +static int dimm_name_to_id(struct device *dev) +{ + int dimm; + + if (sscanf(dev_name(dev), "test_dimm%d", &dimm) != 1 + || dimm >= NUM_DCR || dimm < 0) + return -ENXIO; + return dimm; +} + + +static ssize_t handle_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int dimm = dimm_name_to_id(dev); + + if (dimm < 0) + return dimm; + + return sprintf(buf, "%#x", handle[dimm]); +} +DEVICE_ATTR_RO(handle); + +static ssize_t fail_cmd_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + int dimm = dimm_name_to_id(dev); + + if (dimm < 0) + return dimm; + + return sprintf(buf, "%#lx\n", dimm_fail_cmd_flags[dimm]); +} + +static ssize_t fail_cmd_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +{ + int dimm = dimm_name_to_id(dev); + unsigned long val; + ssize_t rc; + + if (dimm < 0) + return dimm; + + rc = kstrtol(buf, 0, &val); + if (rc) + return rc; + + dimm_fail_cmd_flags[dimm] = val; + return size; +} +static DEVICE_ATTR_RW(fail_cmd); + +static struct attribute *nfit_test_dimm_attributes[] = { + &dev_attr_fail_cmd.attr, + &dev_attr_handle.attr, + NULL, +}; + +static struct attribute_group nfit_test_dimm_attribute_group = { + .attrs = nfit_test_dimm_attributes, +}; + +static const struct attribute_group *nfit_test_dimm_attribute_groups[] = { + &nfit_test_dimm_attribute_group, + NULL, +}; + static int nfit_test0_alloc(struct nfit_test *t) { size_t nfit_size = sizeof(struct acpi_nfit_system_address) * NUM_SPA @@ -640,8 +713,10 @@ static int nfit_test0_alloc(struct nfit_test *t) if (devm_add_action_or_reset(&t->pdev.dev, put_dimms, t->dimm_dev)) return -ENOMEM; for (i = 0; i < NUM_DCR; i++) { - t->dimm_dev[i] = device_create(nfit_test_dimm, &t->pdev.dev, 0, - NULL, "test_dimm%d", i); + t->dimm_dev[i] = device_create_with_groups(nfit_test_dimm, + &t->pdev.dev, 0, NULL, + nfit_test_dimm_attribute_groups, + "test_dimm%d", i); if (!t->dimm_dev[i]) return -ENOMEM; } |