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| author | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-06-29 15:53:58 +1000 |
|---|---|---|
| committer | Stewart Smith <stewart@linux.vnet.ibm.com> | 2017-10-15 20:08:14 -0500 |
| commit | 77dbac105a99c705b830410bd991a5fcd6d1ff4f (patch) | |
| tree | b37d065d3b547c3e0480904161260ef0ec142c81 | |
| parent | 4466a6ec89bf39afeb98b92d03bbf7fc30c55afe (diff) | |
| download | skiboot-77dbac105a99c705b830410bd991a5fcd6d1ff4f.zip skiboot-77dbac105a99c705b830410bd991a5fcd6d1ff4f.tar.gz skiboot-77dbac105a99c705b830410bd991a5fcd6d1ff4f.tar.bz2 | |
doc: clarify locking and async of OPAL_SENSOR_READ
Reported-by: Robert Lippert <rlippert@google.com>
Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
| -rw-r--r-- | doc/opal-api/opal-sensor-read-88.rst | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/doc/opal-api/opal-sensor-read-88.rst b/doc/opal-api/opal-sensor-read-88.rst index 932f572..6bfc414 100644 --- a/doc/opal-api/opal-sensor-read-88.rst +++ b/doc/opal-api/opal-sensor-read-88.rst @@ -11,6 +11,9 @@ service processor for example. In this case, the call will return OPAL_ASYNC_COMPLETION and the token parameter will be used to wait for the completion of the request. +The OPAL API doesn't enforce alimit on the number of sensor calls that can +be in flight. + Parameters ---------- @@ -32,7 +35,9 @@ OPAL_PARAMETER OPAL_UNSUPPORTED platform does not support reading sensors. -In case of communication with the FSP on IBM systems: +Some sensors may have to be read asynchronously (e.g. because OPAL must +communicate with a service processor). One example is sensors provided +by the FSP on IBM FSP systems. OPAL_ASYNC_COMPLETION a request was sent and an async completion will |