Intel I225/I226 (in early development)

Owned by Dietmar Franke (Unlicensed)
Last updated: Jan 15, 2024 by Marcus Tangermann
2 min read

Intel® Ethernet Controller I225-LM/-IT and I226-LM/-IT controllers support speeds up to 2.5 GbE on a single MDI port for 2500BASE-T, 1000BASE-T, 100BASE-TX networking, TSN (802.1AS, 802.1Qbu, 802.3br, 802.1Qbv), PCIe PTM, and Intel® Active Management Technology on systems enabled with Intel® vPro™ technology.

The application can be built using gcc.

Navigate to the project folder of a sample application, e.g. projects/goal_ccl_ie_tsn/03_master_ct/gcc.

Select the target platform (only required once) and build the sample application:

make select <enter the number of “linux_x64”> make

The binary is located at projects/goal_ccl_ie_tsn/03_master_ct/gcc/build/linux_x64/goal_linux_x64.bin

First you need to configure the I225 before starting the CC-Link IE Master. For the following modifications, parameters are:

  • EtherType 0x890F CC-Linke IE → TSLT1

  • EtherType 0x88F7 PTPV2 → TSLT2

The following shell script shows the different steps to configure the PTP and the qdisc for working with CC-LINK IE:

export INTERFACE=enp1s0 #Init PTP ptp4l -P2Hi $INTERFACE -f gPTP.cfg --step_threshold=1 -m & pmc -u -b 0 -t 1 "SET GRANDMASTER_SETTINGS_NP clockClass 248 clockAccuracy 0xfe offsetScaledLogVariance 0xffff currentUtcOffset 37 leap61 0 leap59 0 currentUtcOffsetValid 1 ptpTimescale 1 timeTraceable 1 frequencyTraceable 0 timeSource 0xa0" sleep 10 phc2sys -s enp1s0 -O 0 -c CLOCK_REALTIME --step_threshold=1 --transportSpecific=1 -w -m --first_step_threshold=0.0 & sleep 10 pkill ptp4l pkill phc2sys #Configure qdisc before start CC-Link IE TSN Master application. tc qdisc del dev $INTERFACE parent root handle 100 taprio sleep 2 tc qdisc add dev $INTERFACE clsact &> /dev/null tc filter del dev $INTERFACE egress tc filter add dev $INTERFACE egress protocol 0x890f flower verbose action skbedit priority 1 tc filter add dev $INTERFACE egress protocol 0x88f7 flower verbose action skbedit priority 2 BASE=$(date +%s%N) echo $BASE # Refer appl/goal_ccl_ie_tsn/03_master_ct/goal_appl.c TSLT and modify tc qdisc replace dev $INTERFACE parent root handle 100 taprio num_tc 4 map 2 0 1 3 3 3 3 3 queues 1@0 1@1 1@2 1@3 1@3 1@3 1@3 1@3 base-time $BASE sched-entry S 01 499000 sched-entry S 0 1000 sched-entry S 02 19000 sched-entry S 0 1000 sched-entry S fc 409000 sched-entry S 0 1000 flags 0x2 txtime-delay 0 sleep 2 #Set CC-Link IE TSN Master IP ifconfig $INTERFACE 192.168.3.250

In appl/goal_ccl_ie_tsn/03_master_ct/goal_appl.c , adjust the following settings:

/* timeslot configuration */ #define GOAL_APPL_TSLT0_START_SEC 0 /**< full seconds of start time of timeslot 0 */ #define GOAL_APPL_TSLT0_START_NSEC 520000 /**< subseconds of start time of timeslot 0 */ #define GOAL_APPL_TSLT1_START_SEC 0 /**< full seconds of start time of timeslot 1 */ #define GOAL_APPL_TSLT1_START_NSEC 0 /**< subseconds of start time of timeslot 1 */ #define GOAL_APPL_TSLT2_START_SEC 0 /**< full seconds of start time of timeslot 2 */ #define GOAL_APPL_TSLT2_START_NSEC 500000 /**< subseconds of start time of timeslot 2 */

After configuring the system, the master application can be started:

 

Intel Integrated Ethernet with TSN option is available for a variety of CPU families:

  • Intel Atom® X6000 Series

  • Intel Atom® X7000 Series

  • 11th Gen Intel® Core™ (UP3 Series)

  • 12th Gen Intel® Core™ (S-Series)

  • 13th Gen Intel® Core™ (S-series)

  • 13th Gen Intel® Core™ (P-series)

  • Intel® Xeon® W 11000E Series