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

[Naohiro Aota <naohiro.aota@wdc.com>]

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-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@wdc.com>
---
 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_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;
-- 
2.33.0