Introduction

This Enet VLAN icssg example demonstrates UNH-IOL VLAN conformance and FDB conformance using Enet with ICSSG peripheral.

On AM243X, we can do ethernet based communication using ICSSG HW Mechanism

PRU firmware based Ethernet Switch and Dual MAC implementation
This HW can be used with industrial communication protocols as well

This example do below:

Target-side application running on a Cortex R5F core.
- Application receives the packet, copies the payload into a new packet which is then sent back.
- The application has a menu to select main test cases or sub test cases which are under main test cases.
- VLAN test, FDB test, UTILS test, VLAN Aware/Unaware mode and Unit test default settings are in main test cases in the menu and there are many sub test cases under VLAN and FDB tests which are available at UNH-IOL conformance tests to verify the standard conformance criteria.
- UTILS test is to print/reset the statistics, packet receive count, generate Unicast traffic and etc. This menu along with application logs are implemented via UART.
Host-side functionality
- Software applications like Colasoft Pkt Builder or packETH tool could be used to generate and send packets, Wireshark can be used to receive and verify packet contents
The data path enabled in this example is as follows:
- Host side (PC) application sends a packet to MAC port.
- Based on Switch mode or Dual-EMAC mode the data flow will differ.
- In Switch mode:
  - If packet is non directed unicast(UC) packet, it will be only forwarded.
  - If packet is directed unicast(UC) packet, it will be sent only to target application.
  - If packet is multicast(MC) or broadcast(BC) packet, it will be forwarded as well as sent to target application.
- In Dual-mac mode:
  - If packet is Non directed unicast(UC) packet it will be dropped.
  - If packet is directed unicast(UC) or multicast(MC) or broadcast(BC) packet, it will be sent to target application.
  - Currently to test both MAC ports simultaneously in Dual-MAC mode it requires additional enet lld(UDMA channel allocation) changes.
- Based on test case selction and Filtering options DUT will decide to forward the packet or to drop the packet.
- Target side application receives the packet, updates the MAC addresses in the Layer-2 header and sends the packet back.
- Application like Wireshark (PC) receives the packet and can be seen in the capture window.

Supported Combinations

Parameter	Value
CPU + OS	r5fss0-0_freertos
Toolchain	ti-arm-clang
Boards	am243x-evm, am243x-lp
Icssg Instance	ICSSG1
Example folder	examples/networking/enet_vlan_icssg

Steps to Run the Example

Build the example

When using CCS projects to build, import the CCS project for the required combination and build it using the CCS project menu (see Using SDK with CCS Projects).
When using makefiles to build, note the required combination and build using make command (see Using SDK with Makefiles)

HW Setup

Note: Make sure you have setup the EVM with cable connections as shown here, EVM Setup. In addition do below steps.

AM243X-EVM

For ICSSG based example

Connect two ethernet cables to the EVM from two host PC's as shown below

Ethernet cable for ICSS based ethernet

AM243X-LP

Note: AM243X-LP has two ethernet Ports which can be configured as both CPSW/ICSS ports.

For ICSSG based examples

Connect two ethernet cables to the AM243X-LP from two host PC's as shown below

Ethernet cable for ICSSG based ethernet

Run the example

Attention: If you need to reload and run again, a CPU power-cycle is MUST

Launch a CCS debug session and run the example executable, see CCS Launch, Load and Run
You will see logs in the UART terminal as shown in the next section.
Select the Unit test default settings test case(5) from main menu and configure switch in VLAN Aware mode by selecting testcase number 4 and provide input as 1 to enable VLAN aware mode and 0 for VLAN unaware mode.
We can start sending packets from Colasoft Pkt Builder or packETH tool and capture the packets in Wireshark.

Sample output for VLAN ICSSG example

================================
      ENET ICSSG UNIT TEST
================================
 
Init all peripheral clocks
----------------------------------------------
Enabling clocks!
 
Init all configs
----------------------------------------------
 
Init  configs EnetType:2, InstId :1
----------------------------------------------
icssg1: Open port 1
EnetPhy_bindDriver:
icssg1: Open port 2
EnetPhy_bindDriver:
PHY 3 is alive
PHY 15 is alive
 
Open all peripherals
----------------------------------------------
icssg1: Register async IOCTL callback
icssg1: Register TX timestamp callback
 
Attach core id 1 on all peripherals
----------------------------------------------
icssg1: Attach core
 
Create RX tasks
----------------------------------------------
icssg1: Create RX task
icssg1: Waiting for link up...
 
***************************************************
                UNIT TEST MENU
***************************************************
1.  TC_VLAN_testing
2.  TC_FDB_testing
3.  UTILS_testing
4.  TC_configure_vlan_aware_unaware
5.  setup_unit_test_default_settings
 
Test case id: Icssg_handleLinkUp:
icssg1: Port 1 link is up
icssg1: Set port state to 'Forward'
icssg1: Async IOCTL completed
icssg1: Async IOCTL completed
Icssg_handleLinkUp:
icssg1: Port 2 link is up
icssg1: Set port state to 'Forward'
icssg1: Async IOCTL completed
icssg1: Async IOCTL completed
icssg1: Open DMA
initQs() txFreePktInfoQ initialized with 8 pkts
icssg1: Set MAC addr: 70:ff:76:1d:92:c1
icssg1: MAC port addr: 70:ff:76:1d:92:c1
 
 
 Invalid test case please select valid test case
 
***************************************************
                UNIT TEST MENU
***************************************************
1.  TC_VLAN_testing
2.  TC_FDB_testing
3.  UTILS_testing
4.  TC_configure_vlan_aware_unaware
5.  setup_unit_test_default_settings
 
Test case id: 3
In UTILS related testing...
Please select Test no to choose particular test case to execute
1.  UTILS_display_icssg_hw_consolidated_statistics
2.  UTILS_clear_icssg_hw_consolidated_statistics
3.  UTILS_NRT_add_del_mac_fdb_entry
4.  UTILS_NRT_cofig_port_state
5.  UTILS_NRT_add_fid_vid_entry for PORT1 and PORT2
6.  UTILS_config_PVID
7.  UTILS_get_receive_packet_count
8.  UTILS_clear_receive_packet_count
9.  UTILS_Transmit_UC_packets
1
*************************************************************************
HW STAT PARAM                   PORT1           PORT2
*************************************************************************
 
Print statistics
----------------------------------------------
 
 icssg1 statistics
--------------------------------
  rxGoodFrames            = 76991
  rxClass8                = 76991
  rxClass9                = 76991
  rxBucket2SizedFrame     = 65535
  rxTotalByte             = 9854848
  rxTxTotalByte           = 20325624
  txGoodFrame             = 468106
  txBucket3SizedFrame     = 65535
  txTotalByte             = 63662416
 
 
Print statistics
----------------------------------------------
 
 icssg1 statistics
--------------------------------
  rxGoodFrames            = 468106
  rxClass8                = 468106
  rxClass9                = 468106
  rxBucket2SizedFrame     = 65535
  rxTotalByte             = 59917568
  rxTxTotalByte           = 123579984
  txGoodFrame             = 76991
  txBucket3SizedFrame     = 65535
  txTotalByte             = 10470776
 
 
Test UTILS_display_icssg_hw_consolidated_statistics run successfully from DUT side...
 
*****************************************************
        TEST UTILITY EXECUTION SUMMARY
*****************************************************
 
Test UTILS_testing run successfully from DUT side...
 
***************************************************
                UNIT TEST MENU
***************************************************
1.  TC_VLAN_testing
2.  TC_FDB_testing
3.  UTILS_testing
4.  TC_configure_vlan_aware_unaware
5.  setup_unit_test_default_settings
 
Test case id: 3
In UTILS related testing...
Please select Test no to choose particular test case to execute
1.  UTILS_display_icssg_hw_consolidated_statistics
2.  UTILS_clear_icssg_hw_consolidated_statistics
3.  UTILS_NRT_add_del_mac_fdb_entry
4.  UTILS_NRT_cofig_port_state
5.  UTILS_NRT_add_fid_vid_entry for PORT1 and PORT2
6.  UTILS_config_PVID
7.  UTILS_get_receive_packet_count
8.  UTILS_clear_receive_packet_count
9.  UTILS_Transmit_UC_packets
9
Enter port number(PORT1 = 1 and PORT2 = 2) to start transmitting the packets:
1
Enter number of packets to transmit:
100
 
Test UTILS_Transmit_UC_packets run successfully from DUT side...
 
*****************************************************
        TEST UTILITY EXECUTION SUMMARY
*****************************************************
 
Test UTILS_testing run successfully from DUT side...
 
***************************************************
                UNIT TEST MENU
***************************************************
1.  TC_VLAN_testing
2.  TC_FDB_testing
3.  UTILS_testing
4.  TC_configure_vlan_aware_unaware
5.  setup_unit_test_default_settings
 
Test case id: 3
In UTILS related testing...
Please select Test no to choose particular test case to execute
1.  UTILS_display_icssg_hw_consolidated_statistics
2.  UTILS_clear_icssg_hw_consolidated_statistics
3.  UTILS_NRT_add_del_mac_fdb_entry
4.  UTILS_NRT_cofig_port_state
5.  UTILS_NRT_add_fid_vid_entry for PORT1 and PORT2
6.  UTILS_config_PVID
7.  UTILS_get_receive_packet_count
8.  UTILS_clear_receive_packet_count
9.  UTILS_Transmit_UC_packets
9
Enter port number(PORT1 = 1 and PORT2 = 2) to start transmitting the packets:
2
Enter number of packets to transmit:
100
 
Test UTILS_Transmit_UC_packets run successfully from DUT side...
 
*****************************************************
        TEST UTILITY EXECUTION SUMMARY
*****************************************************
 
Test UTILS_testing run successfully from DUT side...
 
***************************************************
                UNIT TEST MENU
***************************************************
1.  TC_VLAN_testing
2.  TC_FDB_testing
3.  UTILS_testing
4.  TC_configure_vlan_aware_unaware
5.  setup_unit_test_default_settings
 
Test case id:

On Wireshark we can see the packets received:

Wireshark log for VLAN ICSSG Example

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