Versal Prime - VCK190 Evaluation Kit Ethernet TRD Tutorial

Board Setup and Application Deployment
Setting up the Board and Application Deployment ================================================= Introduction ---------------- This document shows how to set up the board and run the Ethernet TRD application with prebuilt images. ### Prerequisites * Reference design `vck190_ethernet_trd_prebuilt_2024.1.zip` file * VCK190 Evaluation Board * Terminal emulator, for example: Windows: teraterm (https://osdn.net/projects/ttssh2) Linux: picocom (https://github.com/npat-efault/picocom/releases) Disk Imager utility, for example * Host Machine with 10G/25G capable NIC * 100G QSFP28 to 4 x 25G SFP28 cable (Board to 10/25G NIC setup) * 100G QSFP28 to 100G QSFP28 Cable (Board to Board Setup) * Iperf3 application * ptp4l application ### Board Setup The following figure shows how to set up the VCK190 evaluation board. ![setup](../../media/vck190_setup.PNG) **Board jumper and switch settings** This is a one-time setup and the board should have been delivered to you with this default setting, however it is good to double check for the first time when you get the board. * Make sure you remove J326 (7-8) jumper. * Setup SYSCTRL Boot mode switch SW11 to (ON,OFF,OFF,OFF) from switch bits 1 to 4 as shown in the above picture. * Make sure you have the uSD card with the SYSCTRL image inserted in the uSD SysCtrl slot. * It is recommended to use the latest SYSCTRL image. * Setup Versal Boot Mode switch SW1 to (ON,OFF,OFF,OFF) from switch bits 1 to 4 as shown in the above picture. **External NIC to VCK190 connection** Connect a QSFP to SFP cable from VCK190 QSFP Port (J288) to Host Machine NIC SFP Port. **Serial console settings** VCK190 comes with a USB-C connector for JTAG+UART, when connected three UART ports should be visible in Device Manager: * Versal UART0 * Versal UART1 & * System Controller UART Connect a USB-C cable to the USB-UART connector. In a terminal emulator, connect to Versal UART0 using the following settings: * Baud Rate: 115200 * Data: 8 bit * Parity: None * Stop: 1 bit * Flow Control: None ### Flash the SD Card * Download the 2024.1 Pre-Built Package from TRD Home Page , unzip and save it on your computer. * Navigate to the directory containing the prebuilt images `../vck190_ethernet_trd_prebuilt_2024.1` * Connect the microSD to your computer. * Preparing the SD card, there are many options to format the SD Card in the windows tool. But, always format with FAT32 option. Use the SD Card Formatter tool to format the SD card SD Card Formatter ![formatter](../../media/sd-card-format.png). * Copy `BOOT.BIN , rootfs.cpio.gz.u-boot , Image and boot.scr` to microSD card. * Eject the SD card from your computer. * Connect the microSD card to the Board. ### SD Boot mode: * Power on the board in SD boot mode. ### GT Reference clocks The GT Reference clocks required for the design are configured by the IDT drivers. > * **NOTE:** Board UI is not required from 2022.1 release. ### Run Host and VCK190 applications Once the host and VCK190 are booted, set up an IP address for each ethernet port and make sure the Ethernet link is established using ping. Do not proceed until you are able to ping each interface. >ifconfig down >ifconfig up > * **NOTE:** While making the interface up, make sure a valid IP address is set for the interface. ## Iperf Commands > * **NOTE - 1 :** The performance on 10G/25G interfaces with Linux stack in the data path is limited by the CPU processing power. Hence performance cannot be expected to meet line rate. There are alternatives to reduce the load on the processors by offloading SW functions to PL or bypassing Linux stack. The intention of this reference is to establish a working solution with a data plane driver, including PTP functionality. > * **NOTE - 2 :** This iperf test is done with the default system network parameters that are set by the operating system. Changing the network parameters might yield different results on different systems. The setup used for the test is given in the below table. **Setup Details:** ||| | -----------------------|-------------| | OS | Ubuntu 22.04.3 LTS (GNU/Linux 5.15.0-83-generic x86_64)| | iperf | iperf 3.5 (cJSON 1.5.2)| | NIC | 25G/10G Solarflare X2522 Dual-Port 25/10 GbE SFP+ Adapter | ### TCP TX **Link Patner (Host NIC):** Execute the following command to start two threads of iperf3 server ``` iperf3 -s -p -i 60 & iperf3 -s -p -i 60 & ``` **Board:** Execute the following command to start iperf3 client, this will start two threads of iperf traffic. **MTU 1500:** ``` taskset -c 1 iperf3 -c -T s1 -p -t 60 -i 60 -b 2500M & taskset -c 1 iperf3 -c -T s2 -p -t 60 -i 60 -b 2500M & ``` **MTU 9000:** ``` taskset -c 1 iperf3 -c -T s1 -p -t 60 -i 60 -b 5000M & taskset -c 1 iperf3 -c -T s2 -p -t 60 -i 60 -b 5000M & ``` **iperf log for MTU 1500**: ``` xilinx-vck190-20241:/home/petalinux# s1: [ ID] Interval Transfer Bitrate Retr Cwnd s1: [ 5] 0.00-60.00 sec 11.8 GBytes 1.68 Gbits/sec 0 1.57 MBytes s1: - - - - - - - - - - - - - - - - - - - - - - - - - s1: [ ID] Interval Transfer Bitrate Retr s1: [ 5] 0.00-60.00 sec 11.8 GBytes 1.68 Gbits/sec 0 sender s1: [ 5] 0.00-60.04 sec 11.8 GBytes 1.68 Gbits/sec receiver s1: s1: iperf Done. s2: [ ID] Interval Transfer Bitrate Retr Cwnd s2: [ 5] 0.00-60.00 sec 12.2 GBytes 1.74 Gbits/sec 0 1.58 MBytes s2: - - - - - - - - - - - - - - - - - - - - - - - - - s2: [ ID] Interval Transfer Bitrate Retr s2: [ 5] 0.00-60.00 sec 12.2 GBytes 1.74 Gbits/sec 0 sender s2: [ 5] 0.00-60.04 sec 12.2 GBytes 1.74 Gbits/sec receiver s2: s2: iperf Done. ``` ### UDP TX **Link Patner (Host NIC):** Execute the following command to start two threads of iperf3 server ``` iperf3 -s -p -i 60 & iperf3 -s -p -i 60 & ``` **Board:** Execute the following command to start iperf3 client, this will start iperf traffic on two processors. **MTU 1500:** ``` taskset -c 0 iperf3 -c -T s1 -u -p -t 60 -i 60 -b 2500M & taskset -c 1 iperf3 -c -T s2 -u -p -t 60 -i 60 -b 2500M & ``` **MTU 9000:** ``` taskset -c 0 iperf3 -c -T s1 -u -p -t 60 -i 60 -b 5000M & taskset -c 1 iperf3 -c -T s2 -u -p -t 60 -i 60 -b 5000M & ``` **iperf log for MTU 1500**: ``` xilinx-vck190-20241:/home/petalinux# s1: [ ID] Interval Transfer Bitrate Total Datagrams s1: [ 5] 0.00-60.00 sec 6.85 GBytes 980 Mbits/sec 5075853 s1: - - - - - - - - - - - - - - - - - - - - - - - - - s1: [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams s1: [ 5] 0.00-60.00 sec 6.85 GBytes 980 Mbits/sec 0.000 ms 0/5075853 (0%) sender s1: [ 5] 0.00-60.04 sec 6.85 GBytes 979 Mbits/sec 0.005 ms 0/5075853 (0%) receiver s1: s1: iperf Done. s2: [ ID] Interval Transfer Bitrate Total Datagrams s2: [ 5] 0.00-60.00 sec 8.40 GBytes 1.20 Gbits/sec 6227758 s2: - - - - - - - - - - - - - - - - - - - - - - - - - s2: [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams s2: [ 5] 0.00-60.00 sec 8.40 GBytes 1.20 Gbits/sec 0.000 ms 0/6227758 (0%) sender s2: [ 5] 0.00-60.04 sec 8.40 GBytes 1.20 Gbits/sec 0.001 ms 106/6227758 (0.0017%) receiver s2: s2: iperf Done. ``` ### TCP RX **Pre-requisites:** For Rx tests, run the following commands initially on the VCK190 board ``` ifconfig down ethtool -G rx 1024 ethtool -C tx-frames 24 rx-frames 24 ifconfig up ``` **Board:** Execute the following command to start iperf3 server on two processors ``` taskset -c 0 iperf3 -s -p -i 60 & taskset -c 1 iperf3 -s -p -i 60 & ``` **Link Partner (Host NIC):** Execute the following command to start iperf3 client, this will start two threads of iperf traffic. **MTU 1500:** ``` iperf3 -c -T s1 -p -t 60 -i 60 -b 2500M -Z -w 256k & iperf3 -c -T s2 -p -t 60 -i 60 -b 2500M -Z -w 256k & ``` **MTU 9000:** ``` iperf3 -c -T s1 -p -t 60 -i 60 -b 5000M -Z -w 256k & iperf3 -c -T s2 -p -t 60 -i 60 -b 5000M -Z -w 256k & ``` **iperf log for MTU 1500**: ``` Transfer Bitrate Retr Cwnd s2: [ 5] 0.00-60.00 sec 8.68 GBytes 1.24 Gbits/sec 316 116 KBytes s2: - - - - - - - - - - - - - - - - - - - - - - - - - s2: [ ID] Interval Transfer Bitrate Retr s2: [ 5] 0.00-60.00 sec 8.68 GBytes 1.24 Gbits/sec 316 sender s2: [ 5] 0.00-60.00 sec 8.68 GBytes 1.24 Gbits/sec receiver s2: s2: iperf Done. s1: [ ID] Interval Transfer Bitrate Retr Cwnd s1: [ 5] 0.00-60.00 sec 5.36 GBytes 767 Mbits/sec 97 115 KBytes s1: - - - - - - - - - - - - - - - - - - - - - - - - - s1: [ ID] Interval Transfer Bitrate Retr s1: [ 5] 0.00-60.00 sec 5.36 GBytes 767 Mbits/sec 97 sender s1: [ 5] 0.00-60.00 sec 5.36 GBytes 767 Mbits/sec receiver s1: s1: iperf Done. ``` ### UDP RX **Board:** Execute the following command to start iperf3 server on two processors ``` taskset -c 0 iperf3 -s -p -i 60 & taskset -c 1 iperf3 -s -p -i 60 & ``` **Link Partner (Host NIC):** Execute the following command to start iperf3 client, this will start two threads of iperf traffic. **MTU 1500:** ``` iperf3 -c -T s1 -u -p -t 60 -i 60 -b 2500M -Z & iperf3 -c -T s2 -u -p -t 60 -i 60 -b 2500M -Z & ``` **MTU 9000:** ``` iperf3 -c -T s1 -u -p -t 60 -i 60 -b 5000M -Z & iperf3 -c -T s2 -u -p -t 60 -i 60 -b 5000M -Z & ``` **iperf log for MTU 1500**: ``` s1: [ ID] Interval Transfer Bitrate Total Datagrams s1: [ 5] 0.00-60.00 sec 17.5 GBytes 2.50 Gbits/sec 12948824 s1: - - - - - - - - - - - - - - - - - - - - - - - - - s1: [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams s1: [ 5] 0.00-60.00 sec 17.5 GBytes 2.50 Gbits/sec 0.000 ms 0/12948824 (0%) sender s1: [ 5] 0.00-60.84 sec 5.91 GBytes 835 Mbits/sec 0.006 ms 8562742/12948694 (66%) receiver s1: s1: iperf Done. s2: [ ID] Interval Transfer Bitrate Total Datagrams s2: [ 5] 0.00-60.00 sec 15.4 GBytes 2.20 Gbits/sec 11417349 s2: - - - - - - - - - - - - - - - - - - - - - - - - - s2: [ ID] Interval Transfer Bitrate Jitter Lost/Total Datagrams s2: [ 5] 0.00-60.00 sec 15.4 GBytes 2.20 Gbits/sec 0.000 ms 0/11417349 (0%) sender s2: [ 5] 0.00-60.00 sec 6.20 GBytes 888 Mbits/sec 0.004 ms 6818607/11417244 (60%) receiver s2: s2: iperf Done. ``` ## PTP commands ### Two Step PTP Run ptp4l in master mode: ```plaintext Link partner > ptp4l -i -m & or vice versa ``` **ptp4l master side log**: ```plaintext Link partner > ptp4l -i eth0 -m & ptp4l[18601.779]: selected /dev/ptp1 as PTP clock ptp4l[18601.780]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[18601.780]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[18601.780]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[18609.021]: port 1: LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[18609.021]: selected local clock 000f53.fffe.9b2dd0 as best master ptp4l[18609.021]: port 1: assuming the grand master role ``` Run ptp4l in slave mode: ```plaintext vck190 > ptp4l -i -m -s & or vice versa ``` **ptp4l frequency synchronization slave side log**: ```plaintext vck190 > ptp4l -i eth0 -s -m & ptp4l[9678.643]: selected /dev/ptp1 as PTP clock ptp4l[9678.657]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[9678.657]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[9682.932]: port 1: new foreign master 000f53.fffe.9b2dd0-1 ptp4l[9685.824]: selected local clock 000a35.fffe.000000 as best master ptp4l[9686.932]: selected best master clock 000f53.fffe.9b2dd0 ptp4l[9686.932]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE ptp4l[9688.932]: master offset -12219001336 s0 freq +0 path delay -90 ptp4l[9689.932]: master offset -12219000514 s1 freq +822 path delay -164 ptp4l[9690.932]: master offset -40 s2 freq +782 path delay -164 ptp4l[9690.932]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED ptp4l[9691.932]: master offset -78 s2 freq +732 path delay -164 ptp4l[9692.932]: master offset -201 s2 freq +586 path delay -27 ptp4l[9693.932]: master offset -63 s2 freq +663 path delay -8 ptp4l[9694.932]: master offset 11 s2 freq +718 path delay -1 ptp4l[9695.932]: master offset 36 s2 freq +747 path delay -1 ptp4l[9696.932]: master offset 23 s2 freq +744 path delay 10 ptp4l[9697.932]: master offset 23 s2 freq +751 path delay 10 ptp4l[9698.932]: master offset 6 s2 freq +741 path delay 22 ptp4l[9699.932]: master offset 0 s2 freq +737 path delay 28 ptp4l[9700.932]: master offset 8 s2 freq +745 path delay 28 ptp4l[9701.932]: master offset -4 s2 freq +735 path delay 38 ptp4l[9702.932]: master offset 2 s2 freq +740 path delay 37 ptp4l[9703.932]: master offset 7 s2 freq +746 path delay 37 ptp4l[9704.932]: master offset 3 s2 freq +744 path delay 38 ptp4l[9705.932]: master offset 6 s2 freq +748 path delay 38 ptp4l[9706.932]: master offset -1 s2 freq +743 path delay 39 ptp4l[9707.932]: master offset -2 s2 freq +741 path delay 39 ptp4l[9708.932]: master offset 2 s2 freq +745 path delay 39 ptp4l[9709.932]: master offset 2 s2 freq +745 path delay 39 ``` > **Note:** For more details refer [Linux PTP Project source files and Documentation](https://linuxptp.sourceforge.net/) ### One Step PTP > * **NOTE:** Another vck190 board with PHC is used as Link partner to test the one step PTP use cases. **PTP with 1 step End-to-end (E2E)**: ```plaintext VCK190 > ptp4l -i -m -f /usr/bin/default_onestep.cfg & VCK190 > ptp4l -i eth0 -s -m -f /usr/bin/default_onestep.cfg & or vice versa ``` **ptp4l master side log**: ```plaintext VCK190 > ptp4l -i eth0 -m -f /usr/bin/default_onestep.cfg & ptp4l[185.138]: selected /dev/ptp1 as PTP clock xilinx-vck190-20241:/home/petalinux# ptp4l[185.148]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[185.149]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[193.041]: port 1: LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[193.041]: selected local clock 000b35.fffe.000000 as best master ptp4l[193.041]: port 1: assuming the grand master role ``` **ptp4l frequency synchronization slave side log**: ```plaintext vck190 > ptp4l -i eth0 -s -m -f /usr/bin/default_onestep.cfg & ptp4l[189.909]: selected /dev/ptp1 as PTP clock ptp4l[189.917]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[189.918]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[196.071]: port 1: new foreign master 000b35.fffe.000000-1 ptp4l[197.649]: selected local clock 000a35.fffe.000000 as best master ptp4l[200.071]: selected best master clock 000b35.fffe.000000 ptp4l[200.071]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE ptp4l[202.070]: master offset -1695996497901908938 s0 freq +0 path delay 78 ptp4l[203.070]: master offset -1695996497901908746 s1 freq +192 path delay 78 ptp4l[204.070]: master offset 39 s2 freq +231 path delay 78 ptp4l[204.071]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED ptp4l[205.070]: master offset -1 s2 freq +203 path delay 78 ptp4l[206.070]: master offset -59 s2 freq +144 path delay 121 ptp4l[207.070]: master offset -19 s2 freq +167 path delay 115 ptp4l[208.070]: master offset 27 s2 freq +207 path delay 110 ptp4l[209.071]: master offset 7 s2 freq +195 path delay 115 ptp4l[210.071]: master offset 3 s2 freq +193 path delay 115 ptp4l[211.070]: master offset -6 s2 freq +185 path delay 121 ptp4l[212.071]: master offset 3 s2 freq +192 path delay 119 ptp4l[213.071]: master offset -2 s2 freq +188 path delay 120 ptp4l[214.071]: master offset 5 s2 freq +195 path delay 120 ptp4l[215.071]: master offset 2 s2 freq +193 path delay 120 ptp4l[216.071]: master offset 0 s2 freq +192 path delay 120 ptp4l[217.071]: master offset 2 s2 freq +194 path delay 120 ptp4l[218.071]: master offset -2 s2 freq +190 path delay 121 ptp4l[219.071]: master offset -1 s2 freq +191 path delay 121 ptp4l[220.071]: master offset 1 s2 freq +192 path delay 120 ``` **PTP Peer-to-peer (P2P) with 1 step Sync**: ```plaintext VCK190> ptp4l -i -m -f /usr/bin/default_onestep.cfg -P & VCK190> ptp4l -i eth0 -s -m -f /usr/bin/default_onestep.cfg -P & or vice versa ``` **ptp4l master side log**: ```plaintext VCK190 > ptp4l -i eth0 -m -f /usr/bin/default_onestep.cfg -P & ptp4l[396.343]: selected /dev/ptp1 as PTP clock ptp4l[396.353]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[396.353]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[403.833]: port 1: LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[403.833]: selected local clock 000b35.fffe.000000 as best master ptp4l[403.833]: port 1: assuming the grand master role ``` **ptp4l frequency synchronization slave side log**: ```plaintext vck190 > ptp4l -i eth0 -s -m -f /usr/bin/default_onestep.cfg -P & ptp4l[412.566]: selected /dev/ptp1 as PTP clock ptp4l[412.577]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[412.577]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[412.863]: port 1: new foreign master 000b35.fffe.000000-1 ptp4l[416.863]: selected best master clock 000b35.fffe.000000 ptp4l[416.863]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE ptp4l[417.862]: master offset 83 s0 freq +193 path delay 120 ptp4l[418.862]: master offset 85 s2 freq +195 path delay 120 ptp4l[418.862]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED ptp4l[419.862]: master offset 84 s2 freq +279 path delay 120 ptp4l[420.862]: master offset -3 s2 freq +217 path delay 120 ptp4l[421.862]: master offset -19 s2 freq +200 path delay 120 ptp4l[422.862]: master offset -24 s2 freq +190 path delay 120 ptp4l[423.863]: master offset -19 s2 freq +187 path delay 120 ptp4l[424.863]: master offset -11 s2 freq +190 path delay 120 ptp4l[425.863]: master offset -5 s2 freq +192 path delay 120 ptp4l[426.863]: master offset -3 s2 freq +193 path delay 120 ptp4l[427.863]: master offset -1 s2 freq +194 path delay 120 ptp4l[428.863]: master offset 0 s2 freq +195 path delay 120 ptp4l[429.863]: master offset -1 s2 freq +194 path delay 120 ``` **PTP P2P with 1 step Sync and 1 step Pdelay Response**: ```plaintext VCK190> ptp4l -i -m -f /usr/bin/default_onestepp2p.cfg & VCK190> ptp4l -i eth0 -s -m -f /usr/bin/default_onestepp2p.cfg & or vice versa ``` **ptp4l master side log**: ```plaintext VCK190 > ptp4l -i eth0 -m -f /usr/bin/default_onestepp2p.cfg & ptp4l[77665.163]: selected /dev/ptp1 as PTP clock ptp4l[77665.173]: port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[77665.173]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[77671.630]: port 1: LISTENING to MASTER on ANNOUNCE_RECEIPT_TIMEOUT_EXPIRES ptp4l[77671.630]: selected local clock 000b35.fffe.000000 as best master ptp4l[77671.630]: port 1: assuming the grand master role ``` **ptp4l frequency synchronization slave side log**: ```plaintext vck190 > ptp4l -i eth0 -s -m -f /usr/bin/default_onestepp2p.cfg & ptp4l[77664.802]: selected /dev/ptp1 as PTP clock port 1: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[77664.813]: port 0: INITIALIZING to LISTENING on INIT_COMPLETE ptp4l[77666.799]: port 1: new foreign master 000b35.fffe.000000-1 ptp4l[77670.799]: selected best master clock 000b35.fffe.000000 ptp4l[77670.799]: port 1: LISTENING to UNCALIBRATED on RS_SLAVE ptp4l[77671.798]: master offset 47 s0 freq +171 path delay 201 ptp4l[77672.798]: master offset 46 s2 freq +170 path delay 202 ptp4l[77672.798]: port 1: UNCALIBRATED to SLAVE on MASTER_CLOCK_SELECTED ptp4l[77673.798]: master offset 49 s2 freq +219 path delay 201 ptp4l[77674.798]: master offset 2 s2 freq +187 path delay 201 ptp4l[77675.798]: master offset -14 s2 freq +171 path delay 201 ptp4l[77676.798]: master offset -13 s2 freq +168 path delay 201 ptp4l[77677.798]: master offset -9 s2 freq +168 path delay 201 ptp4l[77678.798]: master offset -6 s2 freq +169 path delay 201 ptp4l[77679.798]: master offset -3 s2 freq +170 path delay 201 ptp4l[77680.798]: master offset -5 s2 freq +167 path delay 201 ptp4l[77681.799]: master offset 4 s2 freq +174 path delay 201 ptp4l[77682.799]: master offset 1 s2 freq +173 path delay 201 ptp4l[77683.799]: master offset 0 s2 freq +172 path delay 201 ptp4l[77684.799]: master offset -2 s2 freq +170 path delay 202 ptp4l[77685.799]: master offset 0 s2 freq +171 path delay 202 ptp4l[77686.799]: master offset 1 s2 freq +172 path delay 202 ptp4l[77687.799]: master offset 0 s2 freq +172 path delay 202 ptp4l[77688.799]: master offset -2 s2 freq +170 path delay 202 ptp4l[77689.799]: master offset 4 s2 freq +175 path delay 202 ptp4l[77690.799]: master offset 1 s2 freq +173 path delay 202 ptp4l[77691.799]: master offset 0 s2 freq +172 path delay 202 ptp4l[77692.799]: master offset 0 s2 freq +172 path delay 201 ``` ## Dynamic switching between 10G <-> 25G **NOTE:** By default the interface links up at 25G. > * **NOTE:** a) For dynamic switching between 10G/25G speed, make sure autonegotiation is ON for the particular interface on the NIC side. Example command to switch ON autonegotiation is: ethtool -s speed <10000/25000> autoneg on b) After switching, please expect a delay (~2s) for MRMAC block lock to complete and Link to be detected. c) If the block lock does not happen- immediately, try making the interface down and up to achieve block lock. To switch between 25G to 10G speed and vice versa dynamically use the following commands: ### 25G -> 10G: >ifconfig down >ethtool -s speed 10000 >ifconfig up ### 10G -> 25G: >ifconfig down >ethtool -s speed 25000 >ifconfig up > * **NOTE:** Switch the rate in the NIC side first and then on the board side. ### Next Steps * Go back to the [VCK190 Ethernet TRD design start page](../platform_landing.md) ## License Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at [http://www.apache.org/licenses/LICENSE-2.0](http://www.apache.org/licenses/LICENSE-2.0) Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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