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[thirdparty/util-linux.git] / misc-utils / lsblk.c
index d3b5a543cdc1d63b72eff581ff79836df6718a1b..99a966bdd5f25d9bd07863da20939282429d71ad 100644 (file)
@@ -2,7 +2,7 @@
  * lsblk(8) - list block devices
  *
  * Copyright (C) 2010-2018 Red Hat, Inc. All rights reserved.
- * Written by Milan Broz <mbroz@redhat.com>
+ * Written by Milan Broz <gmazyland@gmail.com>
  *            Karel Zak <kzak@redhat.com>
  *
  * This program is free software; you can redistribute it and/or modify
@@ -65,63 +65,75 @@ static int column_id_to_number(int id);
 
 /* column IDs */
 enum {
-       COL_NAME = 0,
-       COL_KNAME,
-       COL_PATH,
-       COL_MAJMIN,
+       COL_ALIOFF = 0,
+       COL_IDLINK,
+       COL_ID,
+       COL_DALIGN,
+       COL_DAX,
+       COL_DGRAN,
+       COL_DISKSEQ,
+       COL_DMAX,
+       COL_DZERO,
        COL_FSAVAIL,
+       COL_FSROOTS,
        COL_FSSIZE,
        COL_FSTYPE,
        COL_FSUSED,
        COL_FSUSEPERC,
-       COL_FSROOTS,
        COL_FSVERSION,
-       COL_TARGET,
-       COL_TARGETS,
+       COL_GROUP,
+       COL_HCTL,
+       COL_HOTPLUG,
+       COL_KNAME,
        COL_LABEL,
-       COL_UUID,
-       COL_PTUUID,
-       COL_PTTYPE,
+       COL_LOGSEC,
+       COL_MAJMIN,
+       COL_MINIO,
+       COL_MODE,
+       COL_MODEL,
+       COL_MQ,
+       COL_NAME,
+       COL_OPTIO,
+       COL_OWNER,
+       COL_PARTFLAGS,
+       COL_PARTLABEL,
+       COL_PARTN,
        COL_PARTTYPE,
        COL_PARTTYPENAME,
-       COL_PARTLABEL,
        COL_PARTUUID,
-       COL_PARTFLAGS,
+       COL_PATH,
+       COL_PHYSEC,
+       COL_PKNAME,
+       COL_PTTYPE,
+       COL_PTUUID,
        COL_RA,
-       COL_RO,
+       COL_RAND,
+       COL_REV,
        COL_RM,
-       COL_HOTPLUG,
-       COL_MODEL,
+       COL_RO,
+       COL_ROTA,
+       COL_RQ_SIZE,
+       COL_SCHED,
        COL_SERIAL,
        COL_SIZE,
+       COL_START,
        COL_STATE,
-       COL_OWNER,
-       COL_GROUP,
-       COL_MODE,
-       COL_ALIOFF,
-       COL_MINIO,
-       COL_OPTIO,
-       COL_PHYSEC,
-       COL_LOGSEC,
-       COL_ROTA,
-       COL_SCHED,
-       COL_RQ_SIZE,
+       COL_SUBSYS,
+       COL_TARGET,
+       COL_TARGETS,
+       COL_TRANSPORT,
        COL_TYPE,
-       COL_DALIGN,
-       COL_DGRAN,
-       COL_DMAX,
-       COL_DZERO,
+       COL_UUID,
+       COL_VENDOR,
        COL_WSAME,
        COL_WWN,
-       COL_RAND,
-       COL_PKNAME,
-       COL_HCTL,
-       COL_TRANSPORT,
-       COL_SUBSYS,
-       COL_REV,
-       COL_VENDOR,
        COL_ZONED,
-       COL_DAX
+       COL_ZONE_SZ,
+       COL_ZONE_WGRAN,
+       COL_ZONE_APP,
+       COL_ZONE_NR,
+       COL_ZONE_OMAX,
+       COL_ZONE_AMAX,
 };
 
 /* basic table settings */
@@ -132,6 +144,7 @@ enum {
        LSBLK_EXPORT =          (1 << 3),
        LSBLK_TREE =            (1 << 4),
        LSBLK_JSON =            (1 << 5),
+       LSBLK_SHELLVAR =        (1 << 6)
 };
 
 /* Types used for qsort() and JSON */
@@ -148,75 +161,81 @@ struct colinfo {
        const char      *name;          /* header */
        double          whint;          /* width hint (N < 1 is in percent of termwidth) */
        int             flags;          /* SCOLS_FL_* */
-       const char      *help;
+       const char      *help;
        int             type;           /* COLTYPE_* */
 };
 
 /* columns descriptions */
 static struct colinfo infos[] = {
-       [COL_NAME]   = { "NAME",    0.25, SCOLS_FL_NOEXTREMES, N_("device name") },
-       [COL_KNAME]  = { "KNAME",   0.3, 0, N_("internal kernel device name") },
-       [COL_PKNAME] = { "PKNAME",  0.3, 0, N_("internal parent kernel device name") },
-       [COL_PATH]   = { "PATH",    0.3,  0, N_("path to the device node") },
-       [COL_MAJMIN] = { "MAJ:MIN", 6, 0, N_("major:minor device number"), COLTYPE_SORTNUM },
-
-       [COL_FSAVAIL]   = { "FSAVAIL", 5, SCOLS_FL_RIGHT, N_("filesystem size available") },
-       [COL_FSSIZE]    = { "FSSIZE", 5, SCOLS_FL_RIGHT, N_("filesystem size") },
-       [COL_FSTYPE]    = { "FSTYPE", 0.1, SCOLS_FL_TRUNC, N_("filesystem type") },
-       [COL_FSUSED]    = { "FSUSED", 5, SCOLS_FL_RIGHT, N_("filesystem size used") },
+       [COL_ALIOFF] = { "ALIGNMENT", 6, SCOLS_FL_RIGHT, N_("alignment offset"), COLTYPE_NUM },
+       [COL_ID] = { "ID", 0.1, SCOLS_FL_NOEXTREMES, N_("udev ID (based on ID-LINK)") },
+       [COL_IDLINK] = { "ID-LINK", 0.1, SCOLS_FL_NOEXTREMES, N_("the shortest udev /dev/disk/by-id link name") },
+       [COL_DALIGN] = { "DISC-ALN", 6, SCOLS_FL_RIGHT, N_("discard alignment offset"), COLTYPE_NUM },
+       [COL_DAX] = { "DAX", 1, SCOLS_FL_RIGHT, N_("dax-capable device"), COLTYPE_BOOL },
+       [COL_DGRAN] = { "DISC-GRAN", 6, SCOLS_FL_RIGHT, N_("discard granularity"), COLTYPE_SIZE },
+       [COL_DISKSEQ] = { "DISK-SEQ", 1, SCOLS_FL_RIGHT, N_("disk sequence number"), COLTYPE_NUM },
+       [COL_DMAX] = { "DISC-MAX", 6, SCOLS_FL_RIGHT, N_("discard max bytes"), COLTYPE_SIZE },
+       [COL_DZERO] = { "DISC-ZERO", 1, SCOLS_FL_RIGHT, N_("discard zeroes data"), COLTYPE_BOOL },
+       [COL_FSAVAIL] = { "FSAVAIL", 5, SCOLS_FL_RIGHT, N_("filesystem size available"), COLTYPE_SIZE },
+       [COL_FSROOTS] = { "FSROOTS", 0.1, SCOLS_FL_WRAP, N_("mounted filesystem roots") },
+       [COL_FSSIZE] = { "FSSIZE", 5, SCOLS_FL_RIGHT, N_("filesystem size"), COLTYPE_SIZE },
+       [COL_FSTYPE] = { "FSTYPE", 0.1, SCOLS_FL_TRUNC, N_("filesystem type") },
+       [COL_FSUSED] = { "FSUSED", 5, SCOLS_FL_RIGHT, N_("filesystem size used"), COLTYPE_SIZE },
        [COL_FSUSEPERC] = { "FSUSE%", 3, SCOLS_FL_RIGHT, N_("filesystem use percentage") },
-       [COL_FSROOTS]   = { "FSROOTS", 0.1, SCOLS_FL_WRAP, N_("mounted filesystem roots") },
        [COL_FSVERSION] = { "FSVER", 0.1, SCOLS_FL_TRUNC, N_("filesystem version") },
-
-       [COL_TARGET]    = { "MOUNTPOINT",  0.10, SCOLS_FL_TRUNC, N_("where the device is mounted") },
-       [COL_TARGETS]   = { "MOUNTPOINTS", 0.10, SCOLS_FL_WRAP,  N_("all locations where device is mounted") },
-
-       [COL_LABEL]  = { "LABEL",   0.1, 0, N_("filesystem LABEL") },
-       [COL_UUID]   = { "UUID",    36,  0, N_("filesystem UUID") },
-
-       [COL_PTUUID] = { "PTUUID",  36,  0, N_("partition table identifier (usually UUID)") },
-       [COL_PTTYPE] = { "PTTYPE",  0.1, 0, N_("partition table type") },
-
-       [COL_PARTTYPE]  = { "PARTTYPE",  36,  0, N_("partition type code or UUID") },
-       [COL_PARTTYPENAME]  = { "PARTTYPENAME",  0.1,  0, N_("partition type name") },
+       [COL_GROUP] = { "GROUP", 0.1, SCOLS_FL_TRUNC, N_("group name") },
+       [COL_HCTL] = { "HCTL", 10, 0, N_("Host:Channel:Target:Lun for SCSI") },
+       [COL_HOTPLUG] = { "HOTPLUG", 1, SCOLS_FL_RIGHT, N_("removable or hotplug device (usb, pcmcia, ...)"), COLTYPE_BOOL },
+       [COL_KNAME] = { "KNAME", 0.3, 0, N_("internal kernel device name") },
+       [COL_LABEL] = { "LABEL", 0.1, 0, N_("filesystem LABEL") },
+       [COL_LOGSEC] = { "LOG-SEC", 7, SCOLS_FL_RIGHT, N_("logical sector size"), COLTYPE_NUM },
+       [COL_MAJMIN] = { "MAJ:MIN", 6, 0, N_("major:minor device number"), COLTYPE_SORTNUM },
+       [COL_MINIO] = { "MIN-IO", 6, SCOLS_FL_RIGHT, N_("minimum I/O size"), COLTYPE_NUM },
+       [COL_MODEL] = { "MODEL", 0.1, SCOLS_FL_TRUNC, N_("device identifier") },
+       [COL_MODE] = { "MODE", 10, 0, N_("device node permissions") },
+       [COL_MQ] = { "MQ", 3, SCOLS_FL_RIGHT, N_("device queues") },
+       [COL_NAME] = { "NAME", 0.25, SCOLS_FL_NOEXTREMES, N_("device name") },
+       [COL_OPTIO] = { "OPT-IO", 6, SCOLS_FL_RIGHT, N_("optimal I/O size"), COLTYPE_NUM },
+       [COL_OWNER] = { "OWNER", 0.1, SCOLS_FL_TRUNC, N_("user name"), },
+       [COL_PARTFLAGS] = { "PARTFLAGS", 36,  0, N_("partition flags") },
        [COL_PARTLABEL] = { "PARTLABEL", 0.1, 0, N_("partition LABEL") },
-       [COL_PARTUUID]  = { "PARTUUID",  36,  0, N_("partition UUID") },
-       [COL_PARTFLAGS] = { "PARTFLAGS",  36,  0, N_("partition flags") },
-
-       [COL_RA]     = { "RA",      3, SCOLS_FL_RIGHT, N_("read-ahead of the device"), COLTYPE_NUM },
-       [COL_RO]     = { "RO",      1, SCOLS_FL_RIGHT, N_("read-only device"), COLTYPE_BOOL },
-       [COL_RM]     = { "RM",      1, SCOLS_FL_RIGHT, N_("removable device"), COLTYPE_BOOL },
-       [COL_HOTPLUG]= { "HOTPLUG", 1, SCOLS_FL_RIGHT, N_("removable or hotplug device (usb, pcmcia, ...)"), COLTYPE_BOOL },
-       [COL_ROTA]   = { "ROTA",    1, SCOLS_FL_RIGHT, N_("rotational device"), COLTYPE_BOOL },
-       [COL_RAND]   = { "RAND",    1, SCOLS_FL_RIGHT, N_("adds randomness"), COLTYPE_BOOL },
-       [COL_MODEL]  = { "MODEL",   0.1, SCOLS_FL_TRUNC, N_("device identifier") },
-       [COL_SERIAL] = { "SERIAL",  0.1, SCOLS_FL_TRUNC, N_("disk serial number") },
-       [COL_SIZE]   = { "SIZE",    5, SCOLS_FL_RIGHT, N_("size of the device"), COLTYPE_SIZE },
-       [COL_STATE]  = { "STATE",   7, SCOLS_FL_TRUNC, N_("state of the device") },
-       [COL_OWNER]  = { "OWNER",   0.1, SCOLS_FL_TRUNC, N_("user name"), },
-       [COL_GROUP]  = { "GROUP",   0.1, SCOLS_FL_TRUNC, N_("group name") },
-       [COL_MODE]   = { "MODE",    10,   0, N_("device node permissions") },
-       [COL_ALIOFF] = { "ALIGNMENT", 6, SCOLS_FL_RIGHT, N_("alignment offset"), COLTYPE_NUM },
-       [COL_MINIO]  = { "MIN-IO",  6, SCOLS_FL_RIGHT, N_("minimum I/O size"), COLTYPE_NUM },
-       [COL_OPTIO]  = { "OPT-IO",  6, SCOLS_FL_RIGHT, N_("optimal I/O size"), COLTYPE_NUM },
+       [COL_PARTN] = { "PARTN", 2, SCOLS_FL_RIGHT, N_("partition number as read from the partition table"), COLTYPE_NUM },
+       [COL_PARTTYPENAME]  = { "PARTTYPENAME",  0.1,  0, N_("partition type name") },
+       [COL_PARTTYPE] = { "PARTTYPE", 36,  0, N_("partition type code or UUID") },
+       [COL_PARTUUID] = { "PARTUUID", 36,  0, N_("partition UUID") },
+       [COL_PATH] = { "PATH", 0.3, 0, N_("path to the device node") },
        [COL_PHYSEC] = { "PHY-SEC", 7, SCOLS_FL_RIGHT, N_("physical sector size"), COLTYPE_NUM },
-       [COL_LOGSEC] = { "LOG-SEC", 7, SCOLS_FL_RIGHT, N_("logical sector size"), COLTYPE_NUM },
-       [COL_SCHED]  = { "SCHED",   0.1, 0, N_("I/O scheduler name") },
+       [COL_PKNAME] = { "PKNAME", 0.3, 0, N_("internal parent kernel device name") },
+       [COL_PTTYPE] = { "PTTYPE", 0.1, 0, N_("partition table type") },
+       [COL_PTUUID] = { "PTUUID", 36,  0, N_("partition table identifier (usually UUID)") },
+       [COL_RAND] = { "RAND", 1, SCOLS_FL_RIGHT, N_("adds randomness"), COLTYPE_BOOL },
+       [COL_RA] = { "RA", 3, SCOLS_FL_RIGHT, N_("read-ahead of the device"), COLTYPE_NUM },
+       [COL_REV] = { "REV", 4, SCOLS_FL_RIGHT, N_("device revision") },
+       [COL_RM] = { "RM", 1, SCOLS_FL_RIGHT, N_("removable device"), COLTYPE_BOOL },
+       [COL_ROTA] = { "ROTA", 1, SCOLS_FL_RIGHT, N_("rotational device"), COLTYPE_BOOL },
+       [COL_RO] = { "RO", 1, SCOLS_FL_RIGHT, N_("read-only device"), COLTYPE_BOOL },
        [COL_RQ_SIZE]= { "RQ-SIZE", 5, SCOLS_FL_RIGHT, N_("request queue size"), COLTYPE_NUM },
-       [COL_TYPE]   = { "TYPE",    4, 0, N_("device type") },
-       [COL_DALIGN] = { "DISC-ALN", 6, SCOLS_FL_RIGHT, N_("discard alignment offset"), COLTYPE_NUM },
-       [COL_DGRAN]  = { "DISC-GRAN", 6, SCOLS_FL_RIGHT, N_("discard granularity"), COLTYPE_SIZE },
-       [COL_DMAX]   = { "DISC-MAX", 6, SCOLS_FL_RIGHT, N_("discard max bytes"), COLTYPE_SIZE },
-       [COL_DZERO]  = { "DISC-ZERO", 1, SCOLS_FL_RIGHT, N_("discard zeroes data"), COLTYPE_BOOL },
-       [COL_WSAME]  = { "WSAME",   6, SCOLS_FL_RIGHT, N_("write same max bytes"), COLTYPE_SIZE },
-       [COL_WWN]    = { "WWN",     18, 0, N_("unique storage identifier") },
-       [COL_HCTL]   = { "HCTL", 10, 0, N_("Host:Channel:Target:Lun for SCSI") },
-       [COL_TRANSPORT] = { "TRAN", 6, 0, N_("device transport type") },
+       [COL_SCHED] = { "SCHED", 0.1, 0, N_("I/O scheduler name") },
+       [COL_SERIAL] = { "SERIAL", 0.1, SCOLS_FL_TRUNC, N_("disk serial number") },
+       [COL_SIZE] = { "SIZE", 5, SCOLS_FL_RIGHT, N_("size of the device"), COLTYPE_SIZE },
+       [COL_START] = { "START", 5, SCOLS_FL_RIGHT, N_("partition start offset"), COLTYPE_NUM },
+       [COL_STATE] = { "STATE", 7, SCOLS_FL_TRUNC, N_("state of the device") },
        [COL_SUBSYS] = { "SUBSYSTEMS", 0.1, SCOLS_FL_NOEXTREMES, N_("de-duplicated chain of subsystems") },
-       [COL_REV]    = { "REV",   4, SCOLS_FL_RIGHT, N_("device revision") },
+       [COL_TARGETS] = { "MOUNTPOINTS", 0.10, SCOLS_FL_WRAP | SCOLS_FL_NOEXTREMES,  N_("all locations where device is mounted") },
+       [COL_TARGET] = { "MOUNTPOINT", 0.10, SCOLS_FL_TRUNC | SCOLS_FL_NOEXTREMES, N_("where the device is mounted") },
+       [COL_TRANSPORT] = { "TRAN", 6, 0, N_("device transport type") },
+       [COL_TYPE] = { "TYPE", 4, 0, N_("device type") },
+       [COL_UUID] = { "UUID", 36,  0, N_("filesystem UUID") },
        [COL_VENDOR] = { "VENDOR", 0.1, SCOLS_FL_TRUNC, N_("device vendor") },
-       [COL_ZONED]  = { "ZONED", 0.3, 0, N_("zone model") },
-       [COL_DAX]    = { "DAX", 1, SCOLS_FL_RIGHT, N_("dax-capable device"), COLTYPE_BOOL },
+       [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_ZONE_SZ] = { "ZONE-SZ", 9, SCOLS_FL_RIGHT, N_("zone size"), COLTYPE_SIZE },
+       [COL_ZONE_WGRAN] = { "ZONE-WGRAN", 10, SCOLS_FL_RIGHT, N_("zone write granularity"), COLTYPE_SIZE },
+       [COL_ZONE_APP] = { "ZONE-APP", 11, SCOLS_FL_RIGHT, N_("zone append max bytes"), COLTYPE_SIZE },
+       [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_("maximum number of open zones"), COLTYPE_NUM },
+       [COL_ZONE_AMAX] = { "ZONE-AMAX", 10, SCOLS_FL_RIGHT, N_("maximum number of active zones"), COLTYPE_NUM },
 };
 
 struct lsblk *lsblk;   /* global handler */
@@ -452,7 +471,7 @@ static char *get_type(struct lsblk_device *dev)
 }
 
 /* Thanks to lsscsi code for idea of detection logic used here */
-static char *get_transport(struct lsblk_device *dev)
+static const char *get_transport(struct lsblk_device *dev)
 {
        struct path_cxt *sysfs = dev->sysfs;
        char *attr = NULL;
@@ -501,10 +520,12 @@ static char *get_transport(struct lsblk_device *dev)
                        trans = "ata";
                free(attr);
 
-       } else if (strncmp(dev->name, "nvme", 4) == 0)
+       } else if (strncmp(dev->name, "nvme", 4) == 0) {
                trans = "nvme";
+       } else if (strncmp(dev->name, "vd", 2) == 0)
+               trans = "virtio";
 
-       return trans ? xstrdup(trans) : NULL;
+       return trans;
 }
 
 static char *get_subsystems(struct lsblk_device *dev)
@@ -712,6 +733,42 @@ static uint64_t device_get_discard_granularity(struct lsblk_device *dev)
        return dev->discard_granularity;
 }
 
+static void device_read_bytes(struct lsblk_device *dev, char *path, char **str,
+                             uint64_t *sortdata)
+{
+       uint64_t x;
+
+       if (lsblk->bytes) {
+               ul_path_read_string(dev->sysfs, str, path);
+               if (sortdata)
+                       str2u64(*str, sortdata);
+               return;
+       }
+
+       if (ul_path_read_u64(dev->sysfs, &x, path) == 0) {
+               *str = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
+               if (sortdata)
+                       *sortdata = x;
+       }
+}
+
+static void process_mq(struct lsblk_device *dev, char **str)
+{
+       unsigned int queues = 0;
+
+       DBG(DEV, ul_debugobj(dev, "%s: process mq", dev->name));
+
+       queues = ul_path_count_dirents(dev->sysfs, "mq");
+       if (!queues) {
+               *str = xstrdup("1");
+               DBG(DEV, ul_debugobj(dev, "%s: no mq supported, use a single queue", dev->name));
+               return;
+       }
+
+       DBG(DEV, ul_debugobj(dev, "%s: has %d queues", dev->name, queues));
+       xasprintf(str, "%3u", queues);
+}
+
 /*
  * Generates data (string) for column specified by column ID for specified device. If sortdata
  * is not NULL then returns number usable to sort the column if the data are available for the
@@ -824,7 +881,7 @@ static char *device_get_data(
                        if (i + 1 < n)
                                ul_buffer_append_data(&buf, "\n", 1);
                }
-               str = ul_buffer_get_data(&buf);
+               str = ul_buffer_get_data(&buf, NULL, NULL);
                break;
        }
        case COL_FSROOTS:
@@ -842,7 +899,7 @@ static char *device_get_data(
                        if (i + 1 < n)
                                ul_buffer_append_data(&buf, "\n", 1);
                }
-               str = ul_buffer_get_data(&buf);
+               str = ul_buffer_get_data(&buf, NULL, NULL);
                break;
        }
        case COL_LABEL:
@@ -894,11 +951,29 @@ static char *device_get_data(
                if (prop && prop->partflags)
                        str = xstrdup(prop->partflags);
                break;
+       case COL_PARTN:
+               prop = lsblk_device_get_properties(dev);
+               if (prop && prop->partn)
+                       str = xstrdup(prop->partn);
+               break;
        case COL_WWN:
                prop = lsblk_device_get_properties(dev);
                if (prop && prop->wwn)
                        str = xstrdup(prop->wwn);
                break;
+       case COL_IDLINK:
+               prop = lsblk_device_get_properties(dev);
+               if (prop && prop->idlink)
+                       str = xstrdup(prop->idlink);
+               break;
+       case COL_ID:
+               prop = lsblk_device_get_properties(dev);
+               if (prop && prop->idlink) {
+                       /* skip bus/subsystem prefix */
+                       const char *p = strchr(prop->idlink, '-');
+                       str = p && *(p + 1) ? xstrdup(p+1) : xstrdup(prop->idlink);
+               }
+               break;
        case COL_RA:
                ul_path_read_string(dev->sysfs, &str, "queue/read_ahead_kb");
                if (sortdata)
@@ -938,8 +1013,13 @@ static char *device_get_data(
                }
                break;
        case COL_REV:
-               if (!device_is_partition(dev) && dev->nslaves == 0)
-                       ul_path_read_string(dev->sysfs, &str, "device/rev");
+               if (!device_is_partition(dev) && dev->nslaves == 0) {
+                       prop = lsblk_device_get_properties(dev);
+                       if (prop && prop->revision)
+                               str = xstrdup(prop->revision);
+                       else
+                               ul_path_read_string(dev->sysfs, &str, "device/rev");
+               }
                break;
        case COL_VENDOR:
                if (!device_is_partition(dev) && dev->nslaves == 0)
@@ -953,6 +1033,11 @@ static char *device_get_data(
                if (sortdata)
                        *sortdata = dev->size;
                break;
+       case COL_START:
+               ul_path_read_string(dev->sysfs, &str, "start");
+               if (sortdata)
+                       str2u64(str, sortdata);
+               break;
        case COL_STATE:
                if (!device_is_partition(dev) && !dev->dm_name)
                        ul_path_read_string(dev->sysfs, &str, "device/state");
@@ -1006,8 +1091,12 @@ static char *device_get_data(
                break;
        }
        case COL_TRANSPORT:
-               str = get_transport(dev);
+       {
+               const char *trans = get_transport(dev);
+               if (trans)
+                       str = xstrdup(trans);
                break;
+       }
        case COL_SUBSYS:
                str = get_subsystems(dev);
                break;
@@ -1032,18 +1121,7 @@ static char *device_get_data(
                }
                break;
        case COL_DMAX:
-               if (lsblk->bytes) {
-                       ul_path_read_string(dev->sysfs, &str, "queue/discard_max_bytes");
-                       if (sortdata)
-                               str2u64(str, sortdata);
-               } else {
-                       uint64_t x;
-                       if (ul_path_read_u64(dev->sysfs, &x, "queue/discard_max_bytes") == 0) {
-                               str = size_to_human_string(SIZE_SUFFIX_1LETTER, x);
-                               if (sortdata)
-                                       *sortdata = x;
-                       }
-               }
+               device_read_bytes(dev, "queue/discard_max_bytes", &str, sortdata);
                break;
        case COL_DZERO:
                if (device_get_discard_granularity(dev) > 0)
@@ -1052,28 +1130,64 @@ static char *device_get_data(
                        str = xstrdup("0");
                break;
        case COL_WSAME:
-               if (lsblk->bytes) {
-                       ul_path_read_string(dev->sysfs, &str, "queue/write_same_max_bytes");
-                       if (sortdata)
-                               str2u64(str, sortdata);
-               } else {
-                       uint64_t x;
+               device_read_bytes(dev, "queue/write_same_max_bytes", &str, sortdata);
+               if (!str)
+                       str = xstrdup("0");
+               break;
+       case COL_ZONED:
+               ul_path_read_string(dev->sysfs, &str, "queue/zoned");
+               break;
+       case COL_ZONE_SZ:
+       {
+               uint64_t x;
 
-                       if (ul_path_read_u64(dev->sysfs, &x, "queue/write_same_max_bytes") == 0) {
+               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;
-                       }
+                       if (sortdata)
+                               *sortdata = x;
                }
+               break;
+       }
+       case COL_ZONE_WGRAN:
+               device_read_bytes(dev, "queue/zone_write_granularity", &str, sortdata);
+               break;
+       case COL_ZONE_APP:
+               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_ZONED:
-               ul_path_read_string(dev->sysfs, &str, "queue/zoned");
+       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;
+       case COL_MQ:
+               process_mq(dev, &str);
+               break;
+       case COL_DISKSEQ:
+               ul_path_read_string(dev->sysfs, &str, "diskseq");
+               if (sortdata)
+                       str2u64(str, sortdata);
+               break;
        };
 
        return str;
@@ -1195,6 +1309,9 @@ static int ignore_empty(struct lsblk_device *dev)
        if (dev->size)
                return 0;
 
+       if (lsblk->noempty && dev->size == 0)
+               return 1;
+
        /* ignore empty loop devices without backing file */
        if (dev->maj == LOOPDEV_MAJOR &&
            !loopdev_has_backing_file(dev->filename))
@@ -1279,6 +1396,26 @@ static int initialize_device(struct lsblk_device *dev,
                return -1;
        }
 
+       /* ignore non-NVMe devices */
+       if (lsblk->nvme) {
+               const char *transport = get_transport(dev);
+
+               if (!transport || strcmp(transport, "nvme")) {
+                       DBG(DEV, ul_debugobj(dev, "non-nvme device -- ignore"));
+                       return -1;
+               }
+       }
+
+       /* ignore non-virtio devices */
+       if (lsblk->virtio) {
+               const char *transport = get_transport(dev);
+
+               if (!transport || strcmp(transport, "virtio")) {
+                       DBG(DEV, ul_debugobj(dev, "non-virtio device -- ignore"));
+                       return -1;
+               }
+       }
+
        DBG(DEV, ul_debugobj(dev, "%s: context successfully initialized", dev->name));
        return 0;
 }
@@ -1846,13 +1983,17 @@ static void __attribute__((__noreturn__)) usage(void)
        fputs(_("List information about block devices.\n"), out);
 
        fputs(USAGE_OPTIONS, out);
+       fputs(_(" -A, --noempty        don't print empty devices\n"), out);
        fputs(_(" -D, --discard        print discard capabilities\n"), out);
        fputs(_(" -E, --dedup <column> de-duplicate output by <column>\n"), out);
        fputs(_(" -I, --include <list> show only devices with specified major numbers\n"), out);
        fputs(_(" -J, --json           use JSON output format\n"), out);
+       fputs(_(" -M, --merge          group parents of sub-trees (usable for RAIDs, Multi-path)\n"), out);
        fputs(_(" -O, --output-all     output all columns\n"), out);
        fputs(_(" -P, --pairs          use key=\"value\" output format\n"), out);
        fputs(_(" -S, --scsi           output info about SCSI devices\n"), out);
+       fputs(_(" -N, --nvme           output info about NVMe devices\n"), out);
+       fputs(_(" -v, --virtio         output info about virtio devices\n"), out);
        fputs(_(" -T, --tree[=<column>] use tree format output\n"), out);
        fputs(_(" -a, --all            print all devices\n"), out);
        fputs(_(" -b, --bytes          print SIZE in bytes rather than in human readable format\n"), out);
@@ -1861,7 +2002,6 @@ static void __attribute__((__noreturn__)) usage(void)
        fputs(_(" -f, --fs             output info about filesystems\n"), out);
        fputs(_(" -i, --ascii          use ascii characters only\n"), out);
        fputs(_(" -l, --list           use list format output\n"), out);
-       fputs(_(" -M, --merge          group parents of sub-trees (usable for RAIDs, Multi-path)\n"), out);
        fputs(_(" -m, --perms          output info about permissions\n"), out);
        fputs(_(" -n, --noheadings     don't print headings\n"), out);
        fputs(_(" -o, --output <list>  output columns\n"), out);
@@ -1871,7 +2011,8 @@ static void __attribute__((__noreturn__)) usage(void)
        fputs(_(" -t, --topology       output info about topology\n"), out);
        fputs(_(" -w, --width <num>    specifies output width as number of characters\n"), out);
        fputs(_(" -x, --sort <column>  sort output by <column>\n"), out);
-       fputs(_(" -z, --zoned          print zone model\n"), out);
+       fputs(_(" -y, --shell          use column names to be usable as shell variable identifiers\n"), out);
+       fputs(_(" -z, --zoned          print zone related information\n"), out);
        fputs(_("     --sysroot <dir>  use specified directory as system root\n"), out);
        fputs(USAGE_SEPARATOR, out);
        printf(USAGE_HELP_OPTIONS(22));
@@ -1916,6 +2057,7 @@ int main(int argc, char *argv[])
                { "all",        no_argument,       NULL, 'a' },
                { "bytes",      no_argument,       NULL, 'b' },
                { "nodeps",     no_argument,       NULL, 'd' },
+               { "noempty",    no_argument,       NULL, 'A' },
                { "discard",    no_argument,       NULL, 'D' },
                { "dedup",      required_argument, NULL, 'E' },
                { "zoned",      no_argument,       NULL, 'z' },
@@ -1937,8 +2079,11 @@ int main(int argc, char *argv[])
                { "paths",      no_argument,       NULL, 'p' },
                { "pairs",      no_argument,       NULL, 'P' },
                { "scsi",       no_argument,       NULL, 'S' },
+               { "nvme",       no_argument,       NULL, 'N' },
+               { "virtio",     no_argument,       NULL, 'v' },
                { "sort",       required_argument, NULL, 'x' },
                { "sysroot",    required_argument, NULL, OPT_SYSROOT },
+               { "shell",      no_argument,       NULL, 'y' },
                { "tree",       optional_argument, NULL, 'T' },
                { "version",    no_argument,       NULL, 'V' },
                { "width",      required_argument, NULL, 'w' },
@@ -1969,11 +2114,15 @@ int main(int argc, char *argv[])
        lsblk_init_debug();
 
        while((c = getopt_long(argc, argv,
-                              "abdDzE:e:fhJlnMmo:OpPiI:rstVST::w:x:", longopts, NULL)) != -1) {
+                               "AabdDzE:e:fhJlNnMmo:OpPiI:rstVvST::w:x:y",
+                               longopts, NULL)) != -1) {
 
                err_exclusive_options(c, longopts, excl, excl_st);
 
                switch(c) {
+               case 'A':
+                       lsblk->noempty = 1;
+                       break;
                case 'a':
                        lsblk->all_devices = 1;
                        break;
@@ -1993,6 +2142,12 @@ int main(int argc, char *argv[])
                case 'z':
                        add_uniq_column(COL_NAME);
                        add_uniq_column(COL_ZONED);
+                       add_uniq_column(COL_ZONE_SZ);
+                       add_uniq_column(COL_ZONE_NR);
+                       add_uniq_column(COL_ZONE_AMAX);
+                       add_uniq_column(COL_ZONE_OMAX);
+                       add_uniq_column(COL_ZONE_APP);
+                       add_uniq_column(COL_ZONE_WGRAN);
                        break;
                case 'e':
                        parse_excludes(optarg);
@@ -2023,6 +2178,9 @@ int main(int argc, char *argv[])
                        lsblk->flags |= LSBLK_EXPORT;
                        lsblk->flags &= ~LSBLK_TREE;    /* disable the default */
                        break;
+               case 'y':
+                       lsblk->flags |= LSBLK_SHELLVAR;
+                       break;
                case 'i':
                        lsblk->flags |= LSBLK_ASCII;
                        break;
@@ -2078,6 +2236,28 @@ int main(int argc, char *argv[])
                        add_uniq_column(COL_SERIAL);
                        add_uniq_column(COL_TRANSPORT);
                        break;
+               case 'N':
+                       lsblk->nodeps = 1;
+                       lsblk->nvme = 1;
+                       add_uniq_column(COL_NAME);
+                       add_uniq_column(COL_TYPE);
+                       add_uniq_column(COL_MODEL);
+                       add_uniq_column(COL_SERIAL);
+                       add_uniq_column(COL_REV);
+                       add_uniq_column(COL_TRANSPORT);
+                       add_uniq_column(COL_RQ_SIZE);
+                       add_uniq_column(COL_MQ);
+                       break;
+               case 'v':
+                       lsblk->nodeps = 1;
+                       lsblk->virtio = 1;
+                       add_uniq_column(COL_NAME);
+                       add_uniq_column(COL_TYPE);
+                       add_uniq_column(COL_TRANSPORT);
+                       add_uniq_column(COL_SIZE);
+                       add_uniq_column(COL_RQ_SIZE);
+                       add_uniq_column(COL_MQ);
+                       break;
                case 'T':
                        force_tree = 1;
                        if (optarg) {
@@ -2170,6 +2350,7 @@ int main(int argc, char *argv[])
                errx(EXIT_FAILURE, _("failed to allocate output table"));
        scols_table_enable_raw(lsblk->table, !!(lsblk->flags & LSBLK_RAW));
        scols_table_enable_export(lsblk->table, !!(lsblk->flags & LSBLK_EXPORT));
+       scols_table_enable_shellvar(lsblk->table, !!(lsblk->flags & LSBLK_SHELLVAR));
        scols_table_enable_ascii(lsblk->table, !!(lsblk->flags & LSBLK_ASCII));
        scols_table_enable_json(lsblk->table, !!(lsblk->flags & LSBLK_JSON));
        scols_table_enable_noheadings(lsblk->table, !!(lsblk->flags & LSBLK_NOHEADINGS));