Sets the type of a given transmit queue.

HPESTATUS hpeSetTransmitQueueAttributes(
    HPEHANDLE devhandle, 
    DWORD queue_index, 
    DWORD tx_attribs
);

Parameters

devhandle

A handle value for the device.

queue_index

The index of the designated queue.

tx_attribs

The valid attributes are:

HPE_TX_TIMESTAMP_1STEP	Place a 1588 timestamp within the packet.
HPE_TX_TIMESTAMP_2STEP	Make a timestamp available post transmission.
HPE_TX_STREAM	Launch packets at specific time offsets.
HPE_TX_STICKY	The queue has persistent buffers.
HPE_TX_NONOTIFY	Do not signal when a TX interrupt occurs. Use this option when polling mode is desired but interrupts must be enabled for hpeSetTargetTimer. hpeGetTransmitQueueState must be used to detect transmit completion (as would be done when NO_INTERRUPTS is specified).

Remarks

HPE_TX_TIMESTAMP_1STEP and HPE_TX_TIMESTAMP_2STEP are mutually exclusive. Enabling 2STEP time stamping on more than one queue may yield erroneous results.

HPE_TX_STICKY queue may be used only in conjunction with HPE_TX_STREAM queues. Once attached, the buffers are not detached. Launch time may be adjusted by setting the launch_time field in the HPETXSTREAMBUFFERSET structure (possibly to 0) and calling hpeSetTransmitOffset.

Return Values

A status value indicating the success or failure of the operation:

E_OK	The operation completed successfully.
E_EXIST	The handle given is not a handle for an open HPE interface.
E_PARAM	The rx_queue_type parameter is invalid
E_LIMIT	The queue_index parameter is out of range for the current hardware interface.

Requirements