E-tile Hard IP Intel® Agilex™ Design Example User Guide: Ethernet, E-tile CPRI PHY and Dynamic Reconfiguration

ID 683860
Date 12/11/2021
Public
Document Table of Contents

4.5.4.1. 100GE MAC+PCS with Optional RS-FEC Dynamic Reconfiguration Hardware Design Example Components

Figure 44. 100GE MAC+PCS with Optional RS-FEC Dynamic Reconfiguration Hardware Design Example High Level Block Diagram
The E-Tile Dynamic Reconfiguration Design Example includes the following components:
  • E-Tile Dynamic Reconfiguration Design Example core. The IP core consists of four 25G channels with optional RS-FEC or one 100G channel.
  • Client logic that coordinates the programming of the IP core and packet generation.
  • Avalon® memory-mapped interface address decoder to decode reconfiguration address space for E-Tile Hard IP for Ethernet core and RS-FEC modules during reconfiguration accesses.
  • JTAG controller that communicates with the System Console. You communicate with the client logic through the System Console.

The hardware design example uses run_test command to initiate packet transmission from packet generator to the IP core. By default, the internal serial loopback is disabled in this design example. Use the loop_on command to enable the internal serial loopback. When you use the run_test command to run the hardware test in the design examples, the script tests 100GE with RS-FEC. Use the run_test_dr to run the hardware test to perform all reconfigurable switches. The client logic reads and print out the MAC statistic registers when the packet transmissions are complete.

The following sample script illustrates a reconfiguration sequence:

source hwtest/main.tcl
set BASE_EHIP 0x400
#DR to 25GNF
# configure dr_cfg_ch_en register
reg_write $BASE_EHIP 0x13 0xf;
# configure dr_cfg_fec_en register
reg_wrtie $BASE_EHIP 0x15 0x0;
# configure dr_control and trigger reconfig registers
reg_write 0x4009 0x1;
The following sample output illustrates a successful hardware test run for 100GE, switching from 100G Ethernet with RS-FEC to 100G Ethernet variation:
% cd hwtest/altera_dr
% run_test_dr_sw "100G_rsfec" "100G_nofec"
-----------------------------------
----- Switching to 100G_nofec -----
-----------------------------------
- Checking init_adaptation status -
-----------------------------------
channel 0 init_adaptation status is 0
channel 1 init_adaptation status is 0
channel 2 init_adaptation status is 0
channel 3 init_adaptation status is 0

Running Traffic_test_100G_nofec test

 RX PHY Register Access: Checking Clock Frequencies (KHz) 
	REFCLK        :2 (KHZ) 
	TXCLK         :40283  (KHZ) 
	RXCLK         :40285  (KHZ) 
	TXRSCLK       :0  (KHZ) 
	RXRSCLK       :0  (KHZ) 
 RX PHY Status Polling 
 Rx Frequency Lock Status     0x0000000f 
 Mac Clock in OK Condition?   0x00000001 
 Rx Frame Error               0x000fffff 
 Rx PHY Fully Aligned?        0x00000001
 Rx AM LOCK Condition?        0x00000001 
 Rx Lanes Deskewed Condition? 0x00000001 
 wait for phy lock 0, locked=0x00000001
 RX PHY Register Access: Checking Clock Frequencies (KHz) 
	REFCLK        :0 (KHZ) 
	TXCLK         :40283  (KHZ) 
	RXCLK         :40284  (KHZ) 
	TXRSCLK       :0  (KHZ) 
	RXRSCLK       :0  (KHZ) 
 RX PHY Status Polling 
 Rx Frequency Lock Status     0x0000000f 
 Mac Clock in OK Condition?   0x00000001 
 Rx Frame Error               0x00000000 
 Rx PHY Fully Aligned?        0x00000001
 Rx AM LOCK Condition?        0x00000001 
 Rx Lanes Deskewed Condition? 0x00000001 
 
 RX PHY Register Access: Checking Clock Frequencies (KHz) 
	REFCLK        :1 (KHZ) 
	TXCLK         :40282  (KHZ) 
	RXCLK         :40285  (KHZ) 
	TXRSCLK       :0  (KHZ) 
	RXRSCLK       :0  (KHZ) 
 RX PHY Status Polling 
 Rx Frequency Lock Status     0x0000000f 
 Mac Clock in OK Condition?   0x00000001 
 Rx Frame Error               0x00000000 
 Rx PHY Fully Aligned?        0x00000001
 Rx AM LOCK Condition?        0x00000001 
 Rx Lanes Deskewed Condition? 0x00000001 
 ==========================================================================================
                        STATISTICS FOR BASE 18688 (Rx)                               
 ==========================================================================================
Fragmented Frames                : 0 
Jabbered Frames                  : 0 
Any Size with FCS Err Frame      : 0 
Right Size with FCS Err Fra      : 0 
Multicast data  Err Frames       : 0 
Broadcast data Err  Frames       : 0 
Unicast data Err  Frames         : 0 
Multicast control  Err Frame     : 0 
Broadcast control Err  Frame     : 0 
Unicast control Err  Frames      : 0 
Pause control Err  Frames        : 0 
64 Byte Frames                   : 14620 
65 - 127 Byte Frames             : 14148 
128 - 255 Byte Frames            : 28658 
256 - 511 Byte Frames            : 57110 
512 - 1023 Byte Frames           : 115595
1024 - 1518 Byte Frames          : 111182 
1519 - MAX Byte Frames           : 0 
> MAX Byte Frames                : 3342259 
Rx Frame Starts                  : 3683572 
Multicast data  OK  Frame        : 0 
Broadcast data OK   Frame        : 0 
Unicast data OK   Frames         : 3675761 
Multicast Control Frames         : 0 
Broadcast Control Frames         : 0 
Unicast Control Frames           : 0 
Pause Control Frames             : 0 
 ==========================================================================================
                        STATISTICS FOR BASE 18432 (Tx)                               
 ==========================================================================================
Fragmented Frames                : 0 
Jabbered Frames                  : 0 
Any Size with FCS Err Frame      : 0 
Right Size with FCS Err Fra      : 0 
Multicast data  Err Frames       : 0 
Broadcast data Err  Frames       : 0 
Unicast data Err  Frames         : 0 
Multicast control  Err Frame     : 0 
Broadcast control Err  Frame     : 0 
Unicast control Err  Frames      : 0 
Pause control Err  Frames        : 0 
64 Byte Frames                   : 14620 
65 - 127 Byte Frames             : 14148 
128 - 255 Byte Frames            : 28658 
256 - 511 Byte Frames            : 57110 
512 - 1023 Byte Frames           : 115595 
1024 - 1518 Byte Frames          : 111182
1519 - MAX Byte Frames           : 0 
> MAX Byte Frames                : 3342259 
Tx Frame Starts                  : 3683572 
Multicast data  OK  Frame        : 0 
Broadcast data OK   Frame        : 0 
Unicast data OK   Frames         : 3675761 
Multicast Control Frames         : 0 
Broadcast Control Frames         : 0 
Unicast Control Frames           : 0
Pause Control Frames             : 0
Traffic_test_100G_nofec: Pass

Did you find the information on this page useful?

Characters remaining:

Feedback Message