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libnvdimm, test: add mock SMART data payload

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Provide simulated SMART data to enable the ndctl implementation of SMART
data retrieval and parsing.

The payload is defined here, "Section 4.1 SMART and Health Info
(Function Index 1)":

    http://pmem.io/documents/NVDIMM_DSM_Interface_Example.pdf

Signed-off-by: Dan Williams <dan.j.williams@intel.com>
This commit is contained in:
Dan Williams 2016-04-05 17:40:52 -07:00
parent 8cc6ddfcaf
commit baa51277cf
3 changed files with 82 additions and 1 deletions
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3
drivers/nvdimm/bus.c
View File

@ -783,6 +783,9 @@ int __init nvdimm_bus_init(void)
{
int rc;
BUILD_BUG_ON(sizeof(struct nd_smart_payload) != 128);
BUILD_BUG_ON(sizeof(struct nd_smart_threshold_payload) != 8);
rc = bus_register(&nvdimm_bus_type);
if (rc)
return rc;

36
include/uapi/linux/ndctl.h
View File

@ -1,5 +1,5 @@
/*
* Copyright (c) 2014-2015, Intel Corporation.
* Copyright (c) 2014-2016, Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU Lesser General Public License,
@ -20,11 +20,45 @@ struct nd_cmd_smart {
__u8 data[128];
} __packed;
#define ND_SMART_HEALTH_VALID (1 << 0)
#define ND_SMART_TEMP_VALID (1 << 1)
#define ND_SMART_SPARES_VALID (1 << 2)
#define ND_SMART_ALARM_VALID (1 << 3)
#define ND_SMART_USED_VALID (1 << 4)
#define ND_SMART_SHUTDOWN_VALID (1 << 5)
#define ND_SMART_VENDOR_VALID (1 << 6)
#define ND_SMART_TEMP_TRIP (1 << 0)
#define ND_SMART_SPARE_TRIP (1 << 1)
#define ND_SMART_NON_CRITICAL_HEALTH (1 << 0)
#define ND_SMART_CRITICAL_HEALTH (1 << 1)
#define ND_SMART_FATAL_HEALTH (1 << 2)
struct nd_smart_payload {
__u32 flags;
__u8 reserved0[4];
__u8 health;
__u16 temperature;
__u8 spares;
__u8 alarm_flags;
__u8 life_used;
__u8 shutdown_state;
__u8 reserved1;
__u32 vendor_size;
__u8 vendor_data[108];
} __packed;
struct nd_cmd_smart_threshold {
__u32 status;
__u8 data[8];
} __packed;
struct nd_smart_threshold_payload {
__u16 alarm_control;
__u16 temperature;
__u8 spares;
__u8 reserved[3];
} __packed;
struct nd_cmd_dimm_flags {
__u32 status;
__u32 flags;

44
tools/testing/nvdimm/test/nfit.c
View File

@ -330,6 +330,42 @@ static int nfit_test_cmd_clear_error(struct nd_cmd_clear_error *clear_err,
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 = {
.flags = ND_SMART_HEALTH_VALID | ND_SMART_TEMP_VALID
| ND_SMART_SPARES_VALID | ND_SMART_ALARM_VALID
| ND_SMART_USED_VALID | ND_SMART_SHUTDOWN_VALID,
.health = ND_SMART_NON_CRITICAL_HEALTH,
.temperature = 23 * 16,
.spares = 75,
.alarm_flags = ND_SMART_SPARE_TRIP | ND_SMART_TEMP_TRIP,
.life_used = 5,
.shutdown_state = 0,
.vendor_size = 0,
};
if (buf_len < sizeof(*smart))
return -EINVAL;
memcpy(smart->data, &smart_data, sizeof(smart_data));
return 0;
}
static int nfit_test_cmd_smart_threshold(struct nd_cmd_smart_threshold *smart_t,
unsigned int buf_len)
{
static const struct nd_smart_threshold_payload smart_t_data = {
.alarm_control = ND_SMART_SPARE_TRIP | ND_SMART_TEMP_TRIP,
.temperature = 40 * 16,
.spares = 5,
};
if (buf_len < sizeof(*smart_t))
return -EINVAL;
memcpy(smart_t->data, &smart_t_data, sizeof(smart_t_data));
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)
@ -368,6 +404,12 @@ static int nfit_test_ctl(struct nvdimm_bus_descriptor *nd_desc,
rc = nfit_test_cmd_set_config_data(buf, buf_len,
t->label[i]);
break;
case ND_CMD_SMART:
rc = nfit_test_cmd_smart(buf, buf_len);
break;
case ND_CMD_SMART_THRESHOLD:
rc = nfit_test_cmd_smart_threshold(buf, buf_len);
break;
default:
return -ENOTTY;
}
@ -1254,10 +1296,12 @@ static void nfit_test0_setup(struct nfit_test *t)
set_bit(ND_CMD_GET_CONFIG_SIZE, &acpi_desc->dimm_dsm_force_en);
set_bit(ND_CMD_GET_CONFIG_DATA, &acpi_desc->dimm_dsm_force_en);
set_bit(ND_CMD_SET_CONFIG_DATA, &acpi_desc->dimm_dsm_force_en);
set_bit(ND_CMD_SMART, &acpi_desc->dimm_dsm_force_en);
set_bit(ND_CMD_ARS_CAP, &acpi_desc->bus_dsm_force_en);
set_bit(ND_CMD_ARS_START, &acpi_desc->bus_dsm_force_en);
set_bit(ND_CMD_ARS_STATUS, &acpi_desc->bus_dsm_force_en);
set_bit(ND_CMD_CLEAR_ERROR, &acpi_desc->bus_dsm_force_en);
set_bit(ND_CMD_SMART_THRESHOLD, &acpi_desc->dimm_dsm_force_en);
}
static void nfit_test1_setup(struct nfit_test *t)