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authorEugene Crosser <Eugene.Crosser@ru.ibm.com>2014-01-14 15:54:13 +0100
committerDavid S. Miller <davem@davemloft.net>2014-01-15 14:48:01 -0800
commit9f48b9db9a22bdbcff8a629b3d2e4a81dcd4ed26 (patch)
tree09cb6c0447e5808c5935c500567df3ab7a235058 /Documentation/s390
parent59b55a4df24e2f105c87721bec3e6c80c3d7b20b (diff)
qeth: bridgeport support - address notifications
Introduce functions to enable and disable bridgeport address notification feature, sysfs attributes for access to these functions from userspace, and udev events emitted when a host joins or exits a bridgeport-enabled HiperSocket channel. 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/s390')
-rw-r--r--Documentation/s390/qeth.txt29
1 files changed, 29 insertions, 0 deletions
diff --git a/Documentation/s390/qeth.txt b/Documentation/s390/qeth.txt
index c08c305efd4d..74122ada9949 100644
--- a/Documentation/s390/qeth.txt
+++ b/Documentation/s390/qeth.txt
@@ -19,3 +19,32 @@ BRIDGEPORT=statechange - indicates that the Bridge Port device changed
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.

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