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| author | Eugene Crosser <Eugene.Crosser@ru.ibm.com> | 2014-01-14 15:54:11 +0100 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-01-15 14:48:01 -0800 |
| commit | b4d72c08b358fc5b259fad0f4971112d949efd1c (patch) | |
| tree | f2bcd879d3957e353e3c7d61a91b5d1a594d7db8 /Documentation | |
| parent | 3977458c9c61fc27a5a88cfcf51696b838d1ecc9 (diff) | |
| download | linux-b4d72c08b358fc5b259fad0f4971112d949efd1c.tar.bz2 | |
qeth: bridgeport support - basic control
Introduce functions to assign roles and check state of bridgeport-capable
HiperSocket devices, and sysfs attributes providing access to these
functions from userspace. Introduce udev events emitted when the state
of a bridgeport device changes.
Signed-off-by: Eugene Crosser <eugene.crosser@ru.ibm.com>
Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com>
Reviewed-by: Ursula Braun <ursula.braun@de.ibm.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/s390/qeth.txt | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/Documentation/s390/qeth.txt b/Documentation/s390/qeth.txt new file mode 100644 index 000000000000..c08c305efd4d --- /dev/null +++ b/Documentation/s390/qeth.txt @@ -0,0 +1,21 @@ +IBM s390 QDIO Ethernet Driver + +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 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. |