Returns the parameters required to issue an ent_fastwrt call.
The CIO_GET_FASTWRT operation returns the parameters required to issue the kernel-mode fast write for the Ethernet adapter. The parameters are returned in the cio_get_fastwrt structure, which is defined in the /usr/include/sys/comio.h file. The arg pointer points to the cio_get_fastwrt structure, which contains the following fields:
status | Indicates the status condition that occurred; either CIO_OK or CIO_INV_CMD. |
fastwrt_fn | Indicates the address of the fast write function. |
devno | Specifies major and minor numbers of the device. |
The CIO_GET_FASTWRT operation can be called from a kernel-mode process only.
The CIO_GET_FASTWRT operation works with an Ethernet High-Performance LAN adapter that has been correctly configured for use on a qualified network. Consult adapter specifications for more information on configuring the network adapter and network qualifications.
The entwrite entry point, ent_fastwrt entry point.