Use this example to open a flow stream. You need to open a flow stream before flow learning.
A flow stream to the SmartNIC must be established using NT_FlowOpen_Attr. Each flow stream is SmartNIC-specific, so if multiple SmartNICs are used, then multiple flow streams are required.
The following code snippet shows how a flow stream is configured and then
opened.
uint8_t adapterNo = 0;
NtFlowAttr_t flowAttr;
NtFlowStream_t flowStream;
// Initialize flow stream attributes and set adapter number attribute.
NT_FlowOpenAttrInit(&flowAttr);
NT_FlowOpenAttrSetAdapterNo(&flowAttr, adapterNo);
// Opens a flow programming stream and returns a stream handle (flowStream).
status = NT_FlowOpen_Attr(&flowStream, "open_flow_stream_example", &flowAttr);
if(status != NT_SUCCESS) { /* Handle error */ }