Specifies a functional address to be used on a token-ring device.
The TOK_FUNC_ADDR tokioctl operation allows the caller to specify a functional address on a token-ring network. A successful CIO_START operation must be issued before a TOK_FUNC_ADDR operation can be issued. The parameter block for the functional address is the tok_func_addr_t structure defined in the /usr/include/sys/tokuser.h file.
The tok_func_addr_t structure has four fields:
| status | Returns one of the following status values: |
| netid | Specifies the network ID associated with this functional address. The network ID must have been successfully started by the CIO_START operation. There can only be one functional address specified per network ID. |
| opcode | When set to TOK_ADD, the functional address is added to the list of possible functional addresses for which the token-ring adapter accepts packets. When set to TOK_DEL, the current functional address is removed from the list of possible functional addresses for which the token-ring adapter accepts packets. The TOK_ADD and TOK_DEL values are defined in the /usr/include/sys/tokuser.h file. |
| func_addr | Specifies the 4 least significant bytes of the 6-byte network function address. The 2 most significant bytes are automatically set to 0xC000 by the token-ring adapter. The most significant bit and the 2 least significant bits within these 4 bytes cannot be set. They are ignored by the token-ring adapter. |
The TOK_FUNC_ADDR tokioctl operation can be called from the process environment only.
The TOK_FUNC_ADDR operation functions with a Token-Ring High Performance Network Adapter that has been correctly configured for use on a qualified network. Consult adapter specifications for more information on configuring the adapter and network qualifications.
The CIO_GET_STAT tokioctl Token-Ring Device Handler Operation for more information about Token-Ring status blocks.
The CIO_START tokioctl Token-Ring Device Handler Operation.
The tokioctl entry point.
Common Communications Status and Exception Codes in AIX Kernel Extensions and Device Support Programming Concepts.