AM6442 EVM eth0 TSN test

fenghua jiang said:

I test tsn on eth1 port with 8.0.0.1 SDK

Can you share a little more on what were you testing? For example did you setup some EST configuration (can you share the commands), and what was the traffic you generated (iperf3 or your own application) ?

fenghua jiang said:

eth1 port down

Did the same test work on eth0 ?

  Pekka

Yes,the eth0  did the sane test and link down 

Pekka Varis said:

fenghua jiang said:

I test tsn on eth1 port with 8.0.0.1 SDK

Can you share a little more on what were you testing? For example did you setup some EST configuration (can you share the commands), and what was the traffic you generated (iperf3 or your own application) ?

Can you share any detail on what you were testing? 

Two AM6442  board test on eth0  for tsn.

one AM6442 eth0  is client with run cmd:

ip link set dev eth0 down
 ethtool -L eth0 tx 3

ethtool --set-priv-flags eth0 p0-rx-ptype-rrobin off

ip link set dev eth0 up

tc qdisc replace dev eth0 parent root handle 100 taprio \
   num_tc 3 \
   map 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 \
   queues 1@0 1@1 1@2 \
   base-time 0000 \
   sched-entry S 4 125000 \
   sched-entry S 2 125000 \
   sched-entry S 1 250000 \
   flags 2

tc filter add dev eth0 egress protocol ip prio 1 u32 match ip dport 5003 0xffff action skbedit priority 3
tc filter add dev eth0 egress protocol ip prio 1 u32 match ip dport 5002 0xffff action skbedit priority 2
tc filter add dev eth0 egress protocol ip prio 1 u32 match ip dport 5001 0xffff action skbedit priority 1

iperf3 -s -i30 -p5001&
iperf3 -s -i30 -p5002&
iperf3 -s -i30 -p5003&

then print:

am65-cpsw-nuss 8000000.ethernet eth0: txq:2 DRV_XOFF:0 tmo:21536 dql_avail:-44 free_desc:513

ping server down 

fenghua jiang said:

iperf3 -s -i30 -p5001& iperf3 -s -i30 -p5002& iperf3 -s -i30 -p5003&

I'm trying to replicate your test. I'm guessing these commands are run at the "server" or "listener". The EST schedule setup is probably at the "client" or "talker", with traffic generated by something like below?

iperf3 -c 192.168.2.10 -u -b100M  -p 5003 -l1472 -t10 -i5&
iperf3 -c 192.168.2.10 -u -b100M  -p 5002 -l1472 -t10 -i5&
iperf3 -c 192.168.2.10 -u -b100M  -p 5001 -l1472 -t10 -i5&

Or in other words you are going through https://software-dl.ti.com/processor-sdk-linux/esd/docs/08_00_00_21/linux/Foundational_Components/Kernel/Kernel_Drivers/Network/CPSW3g.html?highlight=cpsw3g#enhancements-for-scheduled-traffic-est-offload step by step?

Hi Pekka,

     Sorry, I don't reply to you in time.

   https://github.com/intel/iotg_tsn_ref_sw branch dev/apollolake-i-2020

  This is my test source.

  board A:  

 eth0 192.168.2.2

tc qdisc replace dev eth0 parent root handle 100 taprio \
num_tc 3 \
map 0 0 1 2 0 0 0 0 0 0 0 0 0 0 0 0 \
queues 1@0 1@1 1@2 \
base-time 0000 \
sched-entry S 01 250000 \
sched-entry S 02 125000 \
sched-entry S 04 125000 \
flags 2

./sample-app-taprio -i eth0 -c 192.168.2.3 -x 1 -w tsn_prio5-s1s2s3.cfg -S

board B:

 eth0 192.168.2.3

./sample-app-taprio -i eth0 -x 2 -q "5 3" -y 3

/home/jiang/Downloads/1sample-app-taprio/sample-app-taprio

fenghua jiang said:

/home/jiang/Downloads/1sample-app-taprio/sample-app-taprio

Were you trying to attach something? I don't see an attachment ?

Or do you mean you complied https://github.com/intel/iotg_tsn_ref_sw/tree/dev/apollolake-i-2020/sample-app-taprio as is and ran it with those parameters?

Regardless I think I've seen simialr errors errors coming because with the sched-entry list you have has some gates closed forever. If there still is traffic there it consumes permanently some of the TX port memory. I will look into this more. Assuming it is the above sample-app-taprio application and the file https://github.com/intel/iotg_tsn_ref_sw/blob/dev/apollolake-i-2020/sample-app-taprio/tsn_prio3-s1s2s3.cfg is the configuration you use.

  Pekka

Hi Pekka,

      Thank you for your reply.

      I want to attach binary which you can compile  https://github.com/intel/iotg_tsn_ref_sw/tree/dev/apollolake-i-2020/sample-app-taprio .

     The file  https://github.com/intel/iotg_tsn_ref_sw/blob/dev/apollolake-i-2020/sample-app-taprio/tsn_prio3-s1s2s3.cfg is the configuration which I use.

     regards,

fenghua