Re: [PATCH] libnvdimm, test: add mock SMART data payload
From: Dan Williams
Date: Thu Apr 07 2016 - 12:41:44 EST
On Thu, Apr 7, 2016 at 1:27 AM, Johannes Thumshirn <jthumshirn@xxxxxxx> wrote:
> On Mittwoch, 6. April 2016 17:53:49 CEST Dan Williams wrote:
>> 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@xxxxxxxxx>
>> ---
>
> [...]
>
>> @@ -20,6 +20,35 @@ struct nd_cmd_smart {
>> __u8 data[128];
>> } __packed;
>>
>> +enum {
>> + ND_SMART_HEALTH_VALID = 1 << 0,
>> + ND_SMART_TEMP_VALID = 1 << 1,
>> + ND_SMART_SPARES_VALID = 1 << 2,
>> + ND_SMART_ALARM_VALID = 1 << 3,
>> + ND_SMART_USED_VALID = 1 << 4,
>> + ND_SMART_SHUTDOWN_VALID = 1 << 5,
>> + ND_SMART_VENDOR_VALID = 1 << 6,
>> + ND_SMART_TEMP_TRIP = 1 << 0,
>> + ND_SMART_SPARE_TRIP = 1 << 1,
>> + ND_SMART_NON_CRITICAL_HEALTH = 1 << 0,
>> + ND_SMART_CRITICAL_HEALTH = 1 << 1,
>> + ND_SMART_FATAL_HEALTH = 1 << 2,
>> +};
>
> Why not use BIT() instead of that 1 << x stuff and #define instead of the
> abstract enum?
Can't use BIT() since that definition isn't exported in a user header.
I don't have a strong opinion of #define vs anonymous enum, I'll go
ahead and switch it over.