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SSA_TRANSACTION SSA Adapter Device Driver ioctl Operation
Purpose
To send an SSA transaction to an SSA adapter.
Description
The SSA_TRANSACTION operation allows the caller to issue an IPN (Independent
Packet Network) transaction to a selected SSA adapter. IPN is the language that is
used to communicate with the SSA adapter. The caller must be root, or have an
effective user ID of root, to issue this operation.
IPN is described in theTechnical Reference for the adapter.
The arg parameter for the SSA_TRANSACTION operation specifies the address of a
SSA_TransactionParms_t structure. This structure is defined in the
/usr/include/sys/ssa.h file.
The SSA_TRANSACTION operation uses the following fields of the
SSA_TransactionParms_t structure:
DestinationNode
Contains the target node for the transaction.
DestinationService
Contains the target service on that node.
MajorNumber
Major number of the transaction.
MinorNumber
Minor number of the transaction.
DirectiveStatusByte
Contains the directive status byte for the transaction. This contains a value that
is defined in the /usr/include/ipn/ipndef.h file. A non-zero value indicates an
error.
TransactionResult
Contains the IPN result word that is returned by IPN for the transaction. This
contains values that are defined in the /usr/include/ipn/ipntra.h file. A
non-zero value indicates an error.
ParameterDDR
Set by the caller to indicate the buffer for parameter data.
TransmitDDR
Set by the caller to indicate the buffer for transmit data.
ReceiveDDR
Set by the caller to indicate the buffer for received data.
StatusDDR
Set by the caller to indicate the buffer for status data.
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