From 5e41396f723004a4e5710a0bb03259a443be1971 Mon Sep 17 00:00:00 2001 From: Santosh Sivaraj Date: Tue, 22 Dec 2020 09:52:37 +0530 Subject: ndtest: Add dimm attributes This patch adds sysfs attributes for nvdimm and the dimm device. Signed-off-by: Santosh Sivaraj Link: https://lore.kernel.org/r/20201222042240.2983755-5-santosh@fossix.org Signed-off-by: Dan Williams --- tools/testing/nvdimm/test/ndtest.c | 202 ++++++++++++++++++++++++++++++++++++- 1 file changed, 200 insertions(+), 2 deletions(-) diff --git a/tools/testing/nvdimm/test/ndtest.c b/tools/testing/nvdimm/test/ndtest.c index a82790013f8a..f7682e1d3efe 100644 --- a/tools/testing/nvdimm/test/ndtest.c +++ b/tools/testing/nvdimm/test/ndtest.c @@ -219,6 +219,203 @@ static void put_dimms(void *data) } } +static ssize_t handle_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct ndtest_dimm *dimm = dev_get_drvdata(dev); + + return sprintf(buf, "%#x\n", dimm->handle); +} +static DEVICE_ATTR_RO(handle); + +static ssize_t fail_cmd_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct ndtest_dimm *dimm = dev_get_drvdata(dev); + + return sprintf(buf, "%#x\n", dimm->fail_cmd); +} + +static ssize_t fail_cmd_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +{ + struct ndtest_dimm *dimm = dev_get_drvdata(dev); + unsigned long val; + ssize_t rc; + + rc = kstrtol(buf, 0, &val); + if (rc) + return rc; + + dimm->fail_cmd = val; + + return size; +} +static DEVICE_ATTR_RW(fail_cmd); + +static ssize_t fail_cmd_code_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + struct ndtest_dimm *dimm = dev_get_drvdata(dev); + + return sprintf(buf, "%d\n", dimm->fail_cmd_code); +} + +static ssize_t fail_cmd_code_store(struct device *dev, struct device_attribute *attr, + const char *buf, size_t size) +{ + struct ndtest_dimm *dimm = dev_get_drvdata(dev); + unsigned long val; + ssize_t rc; + + rc = kstrtol(buf, 0, &val); + if (rc) + return rc; + + dimm->fail_cmd_code = val; + return size; +} +static DEVICE_ATTR_RW(fail_cmd_code); + +static struct attribute *dimm_attributes[] = { + &dev_attr_handle.attr, + &dev_attr_fail_cmd.attr, + &dev_attr_fail_cmd_code.attr, + NULL, +}; + +static struct attribute_group dimm_attribute_group = { + .attrs = dimm_attributes, +}; + +static const struct attribute_group *dimm_attribute_groups[] = { + &dimm_attribute_group, + NULL, +}; + +static ssize_t phys_id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + struct ndtest_dimm *dimm = nvdimm_provider_data(nvdimm); + + return sprintf(buf, "%#x\n", dimm->physical_id); +} +static DEVICE_ATTR_RO(phys_id); + +static ssize_t vendor_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "0x1234567\n"); +} +static DEVICE_ATTR_RO(vendor); + +static ssize_t id_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + struct ndtest_dimm *dimm = nvdimm_provider_data(nvdimm); + + return sprintf(buf, "%04x-%02x-%04x-%08x", 0xabcd, + 0xa, 2016, ~(dimm->handle)); +} +static DEVICE_ATTR_RO(id); + +static ssize_t nvdimm_handle_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + struct ndtest_dimm *dimm = nvdimm_provider_data(nvdimm); + + return sprintf(buf, "%#x\n", dimm->handle); +} + +static struct device_attribute dev_attr_nvdimm_show_handle = { + .attr = { .name = "handle", .mode = 0444 }, + .show = nvdimm_handle_show, +}; + +static ssize_t subsystem_vendor_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "0x%04x\n", 0); +} +static DEVICE_ATTR_RO(subsystem_vendor); + +static ssize_t dirty_shutdown_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + return sprintf(buf, "%d\n", 42); +} +static DEVICE_ATTR_RO(dirty_shutdown); + +static ssize_t formats_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + struct ndtest_dimm *dimm = nvdimm_provider_data(nvdimm); + + return sprintf(buf, "%d\n", dimm->num_formats); +} +static DEVICE_ATTR_RO(formats); + +static ssize_t format_show(struct device *dev, + struct device_attribute *attr, char *buf) +{ + struct nvdimm *nvdimm = to_nvdimm(dev); + struct ndtest_dimm *dimm = nvdimm_provider_data(nvdimm); + + if (dimm->num_formats > 1) + return sprintf(buf, "0x201\n"); + + return sprintf(buf, "0x101\n"); +} +static DEVICE_ATTR_RO(format); + +static ssize_t format1_show(struct device *dev, struct device_attribute *attr, + char *buf) +{ + return sprintf(buf, "0x301\n"); +} +static DEVICE_ATTR_RO(format1); + +static umode_t ndtest_nvdimm_attr_visible(struct kobject *kobj, + struct attribute *a, int n) +{ + struct device *dev = container_of(kobj, struct device, kobj); + struct nvdimm *nvdimm = to_nvdimm(dev); + struct ndtest_dimm *dimm = nvdimm_provider_data(nvdimm); + + if (a == &dev_attr_format1.attr && dimm->num_formats <= 1) + return 0; + + return a->mode; +} + +static struct attribute *ndtest_nvdimm_attributes[] = { + &dev_attr_nvdimm_show_handle.attr, + &dev_attr_vendor.attr, + &dev_attr_id.attr, + &dev_attr_phys_id.attr, + &dev_attr_subsystem_vendor.attr, + &dev_attr_dirty_shutdown.attr, + &dev_attr_formats.attr, + &dev_attr_format.attr, + &dev_attr_format1.attr, + NULL, +}; + +static const struct attribute_group ndtest_nvdimm_attribute_group = { + .name = "papr", + .attrs = ndtest_nvdimm_attributes, + .is_visible = ndtest_nvdimm_attr_visible, +}; + +static const struct attribute_group *ndtest_nvdimm_attribute_groups[] = { + &ndtest_nvdimm_attribute_group, + NULL, +}; + static int ndtest_dimm_register(struct ndtest_priv *priv, struct ndtest_dimm *dimm, int id) { @@ -230,7 +427,8 @@ static int ndtest_dimm_register(struct ndtest_priv *priv, set_bit(NDD_LABELING, &dimm_flags); } - dimm->nvdimm = nvdimm_create(priv->bus, dimm, NULL, dimm_flags, + dimm->nvdimm = nvdimm_create(priv->bus, dimm, + ndtest_nvdimm_attribute_groups, dimm_flags, NDTEST_SCM_DIMM_CMD_MASK, 0, NULL); if (!dimm->nvdimm) { dev_err(dev, "Error creating DIMM object for %pOF\n", priv->dn); @@ -239,7 +437,7 @@ static int ndtest_dimm_register(struct ndtest_priv *priv, dimm->dev = device_create_with_groups(ndtest_dimm_class, &priv->pdev.dev, - 0, dimm, NULL, + 0, dimm, dimm_attribute_groups, "test_dimm%d", id); if (!dimm->dev) { pr_err("Could not create dimm device attributes\n"); -- cgit v1.2.3