LSCSS(8)

NAME
lscss - list channel subsystem devices.

SYNOPSIS

lscss <options> [RANGE]

DESCRIPTION
The lscss command is used to list all or a subset of devices that are managed by the common I/O subsystem.

[RANGE]
Limit output to a range of subchannels by specifying multiple identifiers as a comma-separated list or a range or a combination of both, e.g.
    0.0.1234-0.0.1235,4711 Note that ranges may also be separated by spaces.

OPTIONS

-s|--short
    Shorten IDs by removing leading "0.0.". Note: only IDs beginning with "0.0." will be displayed in this case.

-t|--devtype <devtype>[/<model>][,...]
    For IO subchannels, limit output to devices of the given device type (e.g. 3390).

-d|--devrange
    Indicate that RANGE refers to device identifiers.

--avail
    Show availability attribute of IO devices.

--vpm
    Show verified path mask. VPM is an internal path mask used by Linux. A channel path can be used by Linux device drivers to do IO if the corresponding bit is set in the VPM. Events that can lead to a channel path not being available include:

    •   The corresponding bit is not set in at least one of the PIM, PAM, or POM masks.

    •   The channel path is varied offline.

    •   Linux received no interrupt to IO using this channel path.

-v|--version
    Print the version of the s390-tools package and the command.

-h|--help
    Print help text.

-u|--uppercase
    Print values using uppercase.

--io
    Show IO subchannels. (default)

--chsc
    Show CHSC subchannels.

--eadm
    Show EADM subchannels.

--vfio
    Show additional information for I/O subchannels used for VFIO. An MDEV is a mediated device that is required to be created by the VFIO channel I/O device driver for the VFIO driver framework as the pass-through target device when doing channel I/O pass-through.

-a|--all
    Show subchannels of all types.

EXAMPLES
lscss
    List all devices that are managed by the common I/O subsystem.
lscss -t 3390
    Same as above but shows only 3390 devices.

NOTES
In rare situations a device might temporarily not be accessible to the subchannel. Then "none" is displayed as the device identifier and the other device attributes are empty.

AUTHOR
This man-page was written by Stefan Bader <shbader@de.ibm.com>.
New options added by Sebastian Ott <sebott@linux.vnet.ibm.com>.

SEE ALSO
chccwdev(8)