Re: [PATCH v2 2/3] lsblk: add columns of zoned parameters

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On 2021/08/30 10:08, Naohiro Aota wrote:
> On Sun, Aug 29, 2021 at 11:10:18PM +0000, Damien Le Moal wrote:
>> On 2021/08/27 16:35, Naohiro Aota wrote:
>>> Several parameters for zoned devices are missing from lsblk's columns. This
>>> commit introduces them as following.
>>>
>>>  ZONE-SZ    zone size
>>>  ZONE-GRAN  zone write granularity
>>
>> ZONE-WGRAN ? (to enforce the point that is a WRITE granularity).
> 
> I changed WGRAN to GRAN to follow DISC-GRAN (discard granularity) and
> to have a shorter name. But, either is fine for me.

"DISC" in "DISC-GRAN" qualifies the granularity: it is clear that it is for
discard. With ZONE-GRAN, you do not get the qualifier since zone granularity
does not mean anything. I really think ZONE-WGRAN or ZONE-WRGRAN would be clearer.

> 
>>
>>>  ZONE-APP   zone append max bytes
>>>  ZONE-NR    number of zones
>>>  ZONE-OMAX  max open zones
>>>  ZONE-AMAX  max active zones
>>>
>>> Signed-off-by: Naohiro Aota <naohiro.aota@xxxxxxx>
>>> ---
>>>  bash-completion/lsblk |  3 ++-
>>>  misc-utils/lsblk.c    | 52 +++++++++++++++++++++++++++++++++++++++++++
>>>  2 files changed, 54 insertions(+), 1 deletion(-)
>>>
>>> diff --git a/bash-completion/lsblk b/bash-completion/lsblk
>>> index 731ef3f4095d..c9ebbdcedef6 100644
>>> --- a/bash-completion/lsblk
>>> +++ b/bash-completion/lsblk
>>> @@ -10,7 +10,8 @@ _lsblk_module()
>>>  		LABEL UUID PTUUID PTTYPE PARTTYPE PARTTYPENAME PARTLABEL PARTUUID PARTFLAGS RA
>>>  		RO RM HOTPLUG MODEL SERIAL SIZE STATE OWNER GROUP MODE ALIGNMENT MIN-IO OPT-IO
>>>  		PHY-SEC LOG-SEC ROTA SCHED RQ-SIZE TYPE DISC-ALN DISC-GRAN DISC-MAX DISC-ZERO
>>> -		WSAME WWN RAND PKNAME HCTL TRAN SUBSYSTEMS REV VENDOR ZONED DAX
>>> +		WSAME WWN RAND PKNAME HCTL TRAN SUBSYSTEMS REV VENDOR ZONED ZONE-SZ ZONE-GRAN
>>> +		ZONE-APP ZONE-NR ZONE-OMAX ZONE-AMAX DAX
>>>  	"
>>>  
>>>  	case $prev in
>>> diff --git a/misc-utils/lsblk.c b/misc-utils/lsblk.c
>>> index 775a6d832076..108c8187498e 100644
>>> --- a/misc-utils/lsblk.c
>>> +++ b/misc-utils/lsblk.c
>>> @@ -123,6 +123,12 @@ enum {
>>>  	COL_WSAME,
>>>  	COL_WWN,
>>>  	COL_ZONED,
>>> +	COL_ZONESIZE,
>>> +	COL_ZONEWRITEGRAN,
>>> +	COL_ZONEAPPEND,
>>
>> COL_ZONESZ
>> COL_ZONEWGRAN
>> COL_ZONEAPP
>>
>> To be inline with the columns display names ?
> 
> Sure. I'll fix.
> 
>>> +	COL_ZONE_NR,
>>> +	COL_ZONE_OMAX,
>>> +	COL_ZONE_AMAX,
>>>  };
>>>  /* basic table settings */
>>> @@ -213,6 +219,12 @@ static struct colinfo infos[] = {
>>>  	[COL_WSAME] = { "WSAME", 6, SCOLS_FL_RIGHT, N_("write same max bytes"), COLTYPE_SIZE },
>>>  	[COL_WWN] = { "WWN", 18, 0, N_("unique storage identifier") },
>>>  	[COL_ZONED] = { "ZONED", 0.3, 0, N_("zone model") },
>>> +	[COL_ZONESIZE] = { "ZONE-SZ", 9, SCOLS_FL_RIGHT, N_("zone size"), COLTYPE_NUM },
>>> +	[COL_ZONEWRITEGRAN] = { "ZONE-GRAN", 10, SCOLS_FL_RIGHT, N_("zone write granularity"), COLTYPE_NUM },
>>> +	[COL_ZONEAPPEND] = { "ZONE-APP", 11, SCOLS_FL_RIGHT, N_("zone append max bytes"), COLTYPE_NUM },
>>> +	[COL_ZONE_NR] = { "ZONE-NR", 8, SCOLS_FL_RIGHT, N_("number of zones"), COLTYPE_NUM },
>>> +	[COL_ZONE_OMAX] = { "ZONE-OMAX", 10, SCOLS_FL_RIGHT, N_("max open zones"), COLTYPE_NUM },
>>> +	[COL_ZONE_AMAX] = { "ZONE-AMAX", 10, SCOLS_FL_RIGHT, N_("max active zones"), COLTYPE_NUM },
>>>  };
>>>  
>>>  struct lsblk *lsblk;	/* global handler */
>>> @@ -1067,6 +1079,46 @@ static char *device_get_data(
>>>  	case COL_ZONED:
>>>  		ul_path_read_string(dev->sysfs, &str, "queue/zoned");
>>>  		break;
>>> +	case COL_ZONESIZE:
>>> +	{
>>> +		uint64_t x;
>>> +
>>> +		if (ul_path_read_u64(dev->sysfs, &x, "queue/chunk_sectors") == 0) {
>>> +			x <<= 9;
>>> +			if (lsblk->bytes)
>>> +				xasprintf(&str, "%ju", x);
>>> +			else
>>> +				str = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
>>> +			if (sortdata)
>>> +				*sortdata = x;
>>> +		}
>>> +		break;
>>> +	}
>>> +	case COL_ZONEWRITEGRAN:
>>> +		device_read_bytes(dev, "queue/zone_write_granularity", &str, sortdata);
>>> +		break;
>>> +	case COL_ZONEAPPEND:
>>> +		device_read_bytes(dev, "queue/zone_append_max_bytes", &str, sortdata);
>>> +		break;
>>> +	case COL_ZONE_NR:
>>> +		ul_path_read_string(dev->sysfs, &str, "queue/nr_zones");
>>> +		if (sortdata)
>>> +			str2u64(str, sortdata);
>>> +		break;
>>> +	case COL_ZONE_OMAX:
>>> +		ul_path_read_string(dev->sysfs, &str, "queue/max_open_zones");
>>> +		if (!str)
>>> +			str = xstrdup("0");
>>> +		if (sortdata)
>>> +			str2u64(str, sortdata);
>>> +		break;
>>> +	case COL_ZONE_AMAX:
>>> +		ul_path_read_string(dev->sysfs, &str, "queue/max_active_zones");
>>> +		if (!str)
>>> +			str = xstrdup("0");
>>> +		if (sortdata)
>>> +			str2u64(str, sortdata);
>>> +		break;
>>>  	case COL_DAX:
>>>  		ul_path_read_string(dev->sysfs, &str, "queue/dax");
>>>  		break;
>>>
>>
>>
>> -- 
>> Damien Le Moal
>> Western Digital Research
>>


-- 
Damien Le Moal
Western Digital Research




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