Commit ed07c433 authored by Dan Williams's avatar Dan Williams
Browse files

tools/testing/nvdimm: smart alarm/threshold control 



Allow the smart_threshold values to be changed via the 'set smart
threshold command' and trigger notifications when the thresholds are
met.

Signed-off-by: default avatarDan Williams <dan.j.williams@intel.com>
parent cdd77d3e

tools/testing/nvdimm/test/nfit.c

+113 −44
Original line number Diff line number Diff line
@@ -168,6 +168,8 @@ struct nfit_test { 
		spinlock_t lock;

	} ars_state;

	struct device *dimm_dev[NUM_DCR];

	struct nd_intel_smart *smart;

	struct nd_intel_smart_threshold *smart_threshold;

	struct badrange badrange;

	struct work_struct work;

};
@@ -440,50 +442,66 @@ static int nfit_test_cmd_translate_spa(struct nvdimm_bus *bus, 
	return 0;

}



static int nfit_test_cmd_smart(struct nd_intel_smart *smart, unsigned int buf_len)

static int nfit_test_cmd_smart(struct nd_intel_smart *smart, unsigned int buf_len,

		struct nd_intel_smart *smart_data)

{

	static const struct nd_intel_smart smart_data = {

		.flags = ND_INTEL_SMART_HEALTH_VALID

			| ND_INTEL_SMART_SPARES_VALID

			| ND_INTEL_SMART_ALARM_VALID

			| ND_INTEL_SMART_USED_VALID

			| ND_INTEL_SMART_SHUTDOWN_VALID

			| ND_INTEL_SMART_MTEMP_VALID,

		.health = ND_INTEL_SMART_NON_CRITICAL_HEALTH,

		.media_temperature = 23 * 16,

		.ctrl_temperature = 30 * 16,

		.pmic_temperature = 40 * 16,

		.spares = 75,

		.alarm_flags = ND_INTEL_SMART_SPARE_TRIP

			| ND_INTEL_SMART_TEMP_TRIP,

		.ait_status = 1,

		.life_used = 5,

		.shutdown_state = 0,

		.vendor_size = 0,

		.shutdown_count = 100,

	};



	if (buf_len < sizeof(*smart))

		return -EINVAL;

	memcpy(smart, &smart_data, sizeof(smart_data));

	memcpy(smart, smart_data, sizeof(*smart));

	return 0;

}



static int nfit_test_cmd_smart_threshold(

		struct nd_intel_smart_threshold *smart_t,

		unsigned int buf_len)

		struct nd_intel_smart_threshold *out,

		unsigned int buf_len,

		struct nd_intel_smart_threshold *smart_t)

{

	static const struct nd_intel_smart_threshold smart_t_data = {

		.alarm_control = ND_INTEL_SMART_SPARE_TRIP

			| ND_INTEL_SMART_TEMP_TRIP,

		.media_temperature = 40 * 16,

		.ctrl_temperature = 30 * 16,

		.spares = 5,

	};



	if (buf_len < sizeof(*smart_t))

		return -EINVAL;

	memcpy(smart_t, &smart_t_data, sizeof(smart_t_data));

	memcpy(out, smart_t, sizeof(*smart_t));

	return 0;

}



static void smart_notify(struct device *bus_dev,

		struct device *dimm_dev, struct nd_intel_smart *smart,

		struct nd_intel_smart_threshold *thresh)

{

	dev_dbg(dimm_dev, "%s: alarm: %#x spares: %d (%d) mtemp: %d (%d) ctemp: %d (%d)\n",

			__func__, thresh->alarm_control, thresh->spares,

			smart->spares, thresh->media_temperature,

			smart->media_temperature, thresh->ctrl_temperature,

			smart->ctrl_temperature);

	if (((thresh->alarm_control & ND_INTEL_SMART_SPARE_TRIP)

				&& smart->spares

				<= thresh->spares)

			|| ((thresh->alarm_control & ND_INTEL_SMART_TEMP_TRIP)

				&& smart->media_temperature

				>= thresh->media_temperature)

			|| ((thresh->alarm_control & ND_INTEL_SMART_CTEMP_TRIP)

				&& smart->ctrl_temperature

				>= thresh->ctrl_temperature)) {

		device_lock(bus_dev);

		__acpi_nvdimm_notify(dimm_dev, 0x81);

		device_unlock(bus_dev);

	}

}



static int nfit_test_cmd_smart_set_threshold(

		struct nd_intel_smart_set_threshold *in,

		unsigned int buf_len,

		struct nd_intel_smart_threshold *thresh,

		struct nd_intel_smart *smart,

		struct device *bus_dev, struct device *dimm_dev)

{

	unsigned int size;



	size = sizeof(*in) - 4;

	if (buf_len < size)

		return -EINVAL;

	memcpy(thresh->data, in, size);

	in->status = 0;

	smart_notify(bus_dev, dimm_dev, smart, thresh);



	return 0;

}
@@ -608,7 +626,7 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, 
				|| !test_bit(func, &nfit_mem->dsm_mask))

			return -ENOTTY;



		/* lookup label space for the given dimm */

		/* lookup per-dimm data */

		for (i = 0; i < ARRAY_SIZE(handle); i++)

			if (__to_nfit_memdev(nfit_mem)->device_handle ==

					handle[i])
@@ -631,14 +649,19 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc, 
			rc = nfit_test_cmd_set_config_data(buf, buf_len,

				t->label[i - t->dcr_idx]);

			break;

		case ND_CMD_SMART:

			rc = nfit_test_cmd_smart(buf, buf_len);

		case ND_INTEL_SMART:

			rc = nfit_test_cmd_smart(buf, buf_len,

					&t->smart[i - t->dcr_idx]);

			break;

		case ND_INTEL_SMART_THRESHOLD:

			rc = nfit_test_cmd_smart_threshold(buf, buf_len,

					&t->smart_threshold[i - t->dcr_idx]);

			break;

		case ND_CMD_SMART_THRESHOLD:

			rc = nfit_test_cmd_smart_threshold(buf, buf_len);

			device_lock(&t->pdev.dev);

			__acpi_nvdimm_notify(t->dimm_dev[i], 0x81);

			device_unlock(&t->pdev.dev);

		case ND_INTEL_SMART_SET_THRESHOLD:

			rc = nfit_test_cmd_smart_set_threshold(buf, buf_len,

					&t->smart_threshold[i - t->dcr_idx],

					&t->smart[i - t->dcr_idx],

					&t->pdev.dev, t->dimm_dev[i]);

			break;

		default:

			return -ENOTTY;
@@ -883,6 +906,44 @@ static const struct attribute_group *nfit_test_dimm_attribute_groups[] = { 
	NULL,

};



static void smart_init(struct nfit_test *t)

{

	int i;

	const struct nd_intel_smart_threshold smart_t_data = {

		.alarm_control = ND_INTEL_SMART_SPARE_TRIP

			| ND_INTEL_SMART_TEMP_TRIP,

		.media_temperature = 40 * 16,

		.ctrl_temperature = 30 * 16,

		.spares = 5,

	};

	const struct nd_intel_smart smart_data = {

		.flags = ND_INTEL_SMART_HEALTH_VALID

			| ND_INTEL_SMART_SPARES_VALID

			| ND_INTEL_SMART_ALARM_VALID

			| ND_INTEL_SMART_USED_VALID

			| ND_INTEL_SMART_SHUTDOWN_VALID

			| ND_INTEL_SMART_MTEMP_VALID,

		.health = ND_INTEL_SMART_NON_CRITICAL_HEALTH,

		.media_temperature = 23 * 16,

		.ctrl_temperature = 30 * 16,

		.pmic_temperature = 40 * 16,

		.spares = 75,

		.alarm_flags = ND_INTEL_SMART_SPARE_TRIP

			| ND_INTEL_SMART_TEMP_TRIP,

		.ait_status = 1,

		.life_used = 5,

		.shutdown_state = 0,

		.vendor_size = 0,

		.shutdown_count = 100,

	};



	for (i = 0; i < t->num_dcr; i++) {

		memcpy(&t->smart[i], &smart_data, sizeof(smart_data));

		memcpy(&t->smart_threshold[i], &smart_t_data,

				sizeof(smart_t_data));

	}

}



static int nfit_test0_alloc(struct nfit_test *t)

{

	size_t nfit_size = sizeof(struct acpi_nfit_system_address) * NUM_SPA
@@ -950,6 +1011,7 @@ static int nfit_test0_alloc(struct nfit_test *t) 
			return -ENOMEM;

	}



	smart_init(t);

	return ars_state_init(&t->pdev.dev, &t->ars_state);

}
@@ -980,6 +1042,7 @@ static int nfit_test1_alloc(struct nfit_test *t) 
	if (!t->spa_set[1])

		return -ENOMEM;



	smart_init(t);

	return ars_state_init(&t->pdev.dev, &t->ars_state);

}
@@ -1653,13 +1716,14 @@ static void nfit_test0_setup(struct nfit_test *t) 
	set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_CMD_SET_CONFIG_DATA, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_CMD_SMART, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_INTEL_SMART, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_INTEL_SMART_THRESHOLD, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_INTEL_SMART_SET_THRESHOLD, &acpi_desc->dimm_cmd_force_en);

	set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_cmd_force_en);

	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);
@@ -2065,6 +2129,11 @@ static int nfit_test_probe(struct platform_device *pdev) 
				sizeof(struct nfit_test_dcr *), GFP_KERNEL);

		nfit_test->dcr_dma = devm_kcalloc(dev, num,

				sizeof(dma_addr_t), GFP_KERNEL);

		nfit_test->smart = devm_kcalloc(dev, num,

				sizeof(struct nd_intel_smart), GFP_KERNEL);

		nfit_test->smart_threshold = devm_kcalloc(dev, num,

				sizeof(struct nd_intel_smart_threshold),

				GFP_KERNEL);

		if (nfit_test->dimm && nfit_test->dimm_dma && nfit_test->label

				&& nfit_test->label_dma && nfit_test->dcr

				&& nfit_test->dcr_dma && nfit_test->flush

tools/testing/nvdimm/test/nfit_test.h

+9 −0
Original line number Diff line number Diff line
@@ -86,6 +86,7 @@ struct nd_cmd_ars_err_inj_stat { 


#define ND_INTEL_SMART 1

#define ND_INTEL_SMART_THRESHOLD 2

#define ND_INTEL_SMART_SET_THRESHOLD 17



#define ND_INTEL_SMART_HEALTH_VALID             (1 << 0)

#define ND_INTEL_SMART_SPARES_VALID             (1 << 1)
@@ -143,6 +144,14 @@ struct nd_intel_smart_threshold { 
	};

} __packed;



struct nd_intel_smart_set_threshold {

	__u16 alarm_control;

	__u8 spares;

	__u16 media_temperature;

	__u16 ctrl_temperature;

	__u32 status;

} __packed;



union acpi_object;

typedef void *acpi_handle;