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authorRussell Currey <ruscur@russell.cc>2016-07-20 14:40:04 +1000
committerStewart Smith <stewart@linux.vnet.ibm.com>2016-07-20 15:41:06 +1000
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doc/opal-api: Document OPAL_PCI_GET_PHB_DIAG_DATA2
Signed-off-by: Russell Currey <ruscur@russell.cc> Signed-off-by: Stewart Smith <stewart@linux.vnet.ibm.com>
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+OPAL_PCI_GET_PHB_DIAG_DATA2
+---------------------------
+Get PCI diagnostic data from a given PHB
+
+Parameters:
+ uint64_t phb_id: the ID of the PHB you want to retrieve data from
+ void *diag_buffer: an allocated buffer to store diag data in
+ uint64_t diag_buffer_len: size in bytes of the diag buffer
+
+Calling:
+
+Retrieve the PHB's diagnostic data. The diagnostic data is stored in the
+buffer pointed by @diag_buffer. Different PHB versions will store different
+diagnostics, defined in include/opal-api.h as "struct OpalIo<PHBVer>ErrorData".
+
+OPAL_PCI_GET_PHB_DIAG_DATA is deprecated and OPAL_PCI_GET_PHB_DIAG_DATA2 should
+be used instead.
+
+Return Codes:
+
+OPAL_SUCCESS - Diagnostic data has been retrieved and stored successfully
+OPAL_PARAMETER - The given buffer is too small to store the diagnostic data
+OPAL_HARDWARE - The PHB is in a broken state and its data cannot be retreived
+OPAL_UNSUPPORTED - Diagnostic data is not implemented for this PHB type