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cubelinux-kernel/Documentation/arch/s390/qeth.rst
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Greg Kroah-Hartman 598cf27219 Linux 6.19.3
Link: https://lore.kernel.org/r/20260217200002.683975158@linuxfoundation.org
Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>
Tested-by: Peter Schneider <pschneider1968@googlemail.com>
Tested-by: Jon Hunter <jonathanh@nvidia.com>
Tested-by: Salvatore Bonaccorso <carnil@debian.org>
Tested-by: Brett A C Sheffield <bacs@librecast.net>
Tested-by: Mark Brown <broonie@kernel.org>
Tested-by: Luna Jernberg <droidbittin@gmail.com>
Tested-by: Ronald Warsow <rwarsow@gmx.de>
Tested-by: Justin M. Forbes <jforbes@fedoraproject.org>
Tested-by: Ron Economos <re@w6rz.net>
Tested-by: Miguel Ojeda <ojeda@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-02-19 16:33:27 +01:00

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=============================
IBM s390 QDIO Ethernet Driver
=============================
OSA and HiperSockets Bridge Port Support
========================================
Uevents
-------
To generate the events the device must be assigned a role of either
a primary or a secondary Bridge Port. For more information, see
"z/VM Connectivity, SC24-6174".
When run on an OSA or HiperSockets Bridge Capable Port hardware, and the state
of some configured Bridge Port device on the channel changes, a udev
event with ACTION=CHANGE is emitted on behalf of the corresponding
ccwgroup device. The event has the following attributes:
BRIDGEPORT=statechange
indicates that the Bridge Port device changed
its state.
ROLE={primary|secondary|none}
the role assigned to the port.
STATE={active|standby|inactive}
the newly assumed state of the port.
When run on HiperSockets Bridge Capable Port hardware with host address
notifications enabled, a udev event with ACTION=CHANGE is emitted.
It is emitted on behalf of the corresponding ccwgroup device when a host
or a VLAN is registered or unregistered on the network served by the device.
The event has the following attributes:
BRIDGEDHOST={reset|register|deregister|abort}
host address
notifications are started afresh, a new host or VLAN is registered or
deregistered on the Bridge Port HiperSockets channel, or address
notifications are aborted.
VLAN=numeric-vlan-id
VLAN ID on which the event occurred. Not included
if no VLAN is involved in the event.
MAC=xx:xx:xx:xx:xx:xx
MAC address of the host that is being registered
or deregistered from the HiperSockets channel. Not reported if the
event reports the creation or destruction of a VLAN.
NTOK_BUSID=x.y.zzzz
device bus ID (CSSID, SSID and device number).
NTOK_IID=xx
device IID.
NTOK_CHPID=xx
device CHPID.
NTOK_CHID=xxxx
device channel ID.
Note that the `NTOK_*` attributes refer to devices other than the one
connected to the system on which the OS is running.