Overview

Implements examples that utilize the AXI Ethernet's interrupt driven DMA packet transfer mode to send and receive multicast frames when XAE_EXT_MULTICAST_OPTION is enabled.

This example demonstrates:

How to perform option enable
Which interrupt BD word are verified and confirm it is a valid multicast frame.

Functional guide to example:

AxiEthernetSgDmaIntrExtMulticast Example demonstrates the extended multicast. The HW must be setup for extended multicast for this example to execute.

MODIFICATION HISTORY:

Ver   Who  Date     Changes



1.00a asa  4/30/10  First release based on the ll temac driver
1.01a asa  12/10/10 Changes made to enable the AXIDMA Tx/Rx ring interrupts
                          before allocation of Tx/Rx BDs.
3.00a asa  6/25/12  Modified XAxiDma_BdSetLength API call to support new
                          AXI DMA driver version 7.00a.
3.00a bss  10/22/12 Added support for Fast Interrupt Handlers.
3.01a srt  02/14/13 Added support for Zynq (CR 681136)
5.4   ms   01/23/17 Modified xil_printf statement in main function to
                    ensure that "Successfully ran" and "Failed" strings are
                    available in all examples. This is a fix for CR-965028.
      ms   04/05/17 Added tabspace for return statements in functions
                    for proper documentation while generating doxygen.
5.7   rsp  19/12/17 Defined Padding and ExternalLoopback variables.

Functions
int	AxiEthernetMcastExample (INTC IntcInstancePtr, XAxiEthernet AxiEthernetInstancePtr, XAxiDma *DmaInstancePtr, u16 AxiEthernetDeviceId, u16 AxiDmaDeviceId, u16 AxiEthernetIntrId, u16 DmaRxIntrId, u16 DmaTxIntrId)
	This function demonstrates the usage usage of the Axi Ethernet extended multicast feature. More...

int	AxiEthernetSgDmaIntrExtMulticastExample (XAxiEthernet AxiEthernetInstancePtr, XAxiDma DmaInstancePtr)
	This example sends and receives a single packet in loopback mode with extended multicast address support. More...

int	main (void)
	This is the main function for the Axi Ethernet example. More...

Function Documentation

int AxiEthernetMcastExample	(	INTC *	IntcInstancePtr,
		XAxiEthernet *	AxiEthernetInstancePtr,
		XAxiDma *	DmaInstancePtr,
		u16	AxiEthernetDeviceId,
		u16	AxiDmaDeviceId,
		u16	AxiEthernetIntrId,
		u16	DmaRxIntrId,
		u16	DmaTxIntrId
	)

This function demonstrates the usage usage of the Axi Ethernet extended multicast feature.

It uses AXI DMA core in interrupt mode to transfer Ethernet frames.

Parameters

IntcInstancePtr	is a pointer to the instance of the Intc component.
AxiEthernetInstancePtr	is a pointer to the instance of the AxiEthernet component.
DmaInstancePtr	is a pointer to the instance of the AXIDMA component.
AxiEthernetDeviceId	is Device ID of the Axi Ethernet Device , typically XPAR_<AXIETHERNET_instance>_DEVICE_ID value from xparameters.h.
AxiDmaDeviceId	is Device ID of the Axi DMAA Device , typically XPAR_<AXIDMA_instance>_DEVICE_ID value from xparameters.h.
AxiEthernetIntrId	is the Interrupt ID and is typically XPAR_<INTC_instance>_<AXIETHERNET_instance>_VEC_ID value from xparameters.h.
DmaRxIntrId	is the interrupt id for DMA Rx and is typically taken from XPAR_<AXIETHERNET_instance>_CONNECTED_DMARX_INTR
DmaTxIntrId	is the interrupt id for DMA Tx and is typically taken from XPAR_<AXIETHERNET_instance>_CONNECTED_DMATX_INTR

Returns

XST_SUCCESS to indicate success.
XST_FAILURE.to indicate failure.

Note: AxiDma hardware must be initialized before initializing AxiEthernet. Since AxiDma reset line is connected to the AxiEthernet reset line, a reset of AxiDma hardware during its initialization would reset AxiEthernet.

References XAxiEthernet_Config::AxiDevBaseAddress, XAxiEthernet_Config::AxiDevType, AxiEthernetSgDmaIntrExtMulticastExample(), AxiEthernetUtilEnterLoopback(), AxiEthernetUtilErrorTrap(), AxiEthernetUtilPhyDelay(), XAxiEthernet_Config::BaseAddress, XAxiEthernet::Config, XAxiEthernet_CfgInitialize(), XAxiEthernet_GetPhysicalInterface, XAxiEthernet_IsExtMcast, XAxiEthernet_LookupConfig(), XAxiEthernet_SetMacAddress(), XAxiEthernet_SetOperatingSpeed(), and XAxiEthernet_Stop().

Referenced by main().

int AxiEthernetSgDmaIntrExtMulticastExample	(	XAxiEthernet *	AxiEthernetInstancePtr,
		XAxiDma *	DmaInstancePtr
	)

This example sends and receives a single packet in loopback mode with extended multicast address support.

The transmit frame will be addressed one of programed multicast addresses.

On receive, HW should pass the frame to receive interrupt handler for further address checking.

Parameters

AxiEthernetInstancePtr	is a pointer to the instance of the AxiEthernet component.
DmaInstancePtr	is a pointer to the instance of the AXI DMA component.

Returns

XST_SUCCESS to indicate success.
XST_FAILURE to indicate failure.

Note: None.

References AxiEthernetUtilErrorTrap(), AxiEthernetUtilFrameHdrFormatMAC(), AxiEthernetUtilFrameHdrFormatType(), AxiEthernetUtilFrameMemClear(), AxiEthernetUtilFrameSetPayloadData(), AxiEthernetUtilFrameVerify(), XAxiEthernet::Options, XAE_DEFAULT_OPTIONS, XAE_EXT_MULTICAST_OPTION, XAE_INT_RECV_ERROR_MASK, XAE_RECEIVER_ENABLE_OPTION, XAE_TRANSMITTER_ENABLE_OPTION, XAxiEthernet_AddExtMulticastGroup(), XAxiEthernet_ClearOptions(), XAxiEthernet_GetExtMulticastGroup(), XAxiEthernet_IntEnable, XAxiEthernet_IsExtMcast, XAxiEthernet_SetMacAddress(), XAxiEthernet_SetOptions(), and XAxiEthernet_Start().

Referenced by AxiEthernetMcastExample().

int main ( void )

This is the main function for the Axi Ethernet example.

This function is not included if the example is generated from the TestAppGen test tool.

Parameters

None.

Returns

XST_SUCCESS to indicate success.
XST_FAILURE to indicate failure

Note: None.

References AXIETHERNET_DEVICE_ID, AxiEthernetMcastExample(), and AxiEthernetUtilErrorTrap().

Overview

Functions

Function Documentation