icmp sequence number

sandeep_c · ‎04-03-2023

iam developing driver for ksz8851snli using lwip stack + ksz8851(spi to etehrnet and vice versa)

arp protocol is working fine

when i received an icmp reply ping id is matching but ping sequence is not matching what might be the solution for this

Sanket_Parekh · ‎04-04-2023

Hello @sandeep_c ,

I hope you are doing well.

Please kindly share the below things to debug the issue.

-which evk are you using?
-which linux kernel version are you using?
-Kindly share the console logs as well as dmesg logs.

-Kindly share the environment details.

Thanks & Regards,

Sanket Parekh

sandeep_c · ‎04-04-2023

IDE DETAILS:

i.MX RT1170 First GHz Crossover MCU with Arm® Cortex®-M7 and Cortex-M4 Cores

MCUXpresso IDE v11.6.0 [Build 8187] [2022-07-13]

problem:

iam trying ping between pc to mc and vice versa during this time i will get all for responses and sometimes i will loss 3 or 2 or 1 packets or all packets please refer the document .

i havent found at what frequency clock will generated by the laptop (pc) for request or reply

what are the procedure or how can i solve this issue i need some insight from the community.

my processor clock configured as 500khz

Microsoft Windows [Version 10.0.19045.2728]
(c) Microsoft Corporation. All rights reserved.
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1746ms TTL=255
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 1746ms, Maximum = 1746ms, Average = 1746ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2574ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 2574ms, Maximum = 2574ms, Average = 2574ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2773ms TTL=255
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 2773ms, Maximum = 2773ms, Average = 2773ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
General failure.
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2039ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2056ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 2039ms, Maximum = 2056ms, Average = 2047ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=919ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1229ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1783ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=3489ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 919ms, Maximum = 3489ms, Average = 1855ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=869ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1410ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 869ms, Maximum = 1410ms, Average = 1139ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2085ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 2085ms, Maximum = 2085ms, Average = 2085ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1253ms TTL=255
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 1253ms, Maximum = 1253ms, Average = 1253ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=811ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1160ms TTL=255
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 811ms, Maximum = 1160ms, Average = 985ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=3658ms TTL=255
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 3658ms, Maximum = 3658ms, Average = 3658ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

thank you

sandeep_c · ‎04-04-2023

hi everyone iam developing the driver for ksz 8851snli by using lwip stack which spi to ethernet and vice versa

IDE DETAILS:

i.MX RT1170 First GHz Crossover MCU with Arm® Cortex®-M7 and Cortex-M4 Cores

MCUXpresso IDE v11.6.0 [Build 8187] [2022-07-13]

problem:

iam trying ping between pc to mc and vice versa during this time i will get all for responses and sometimes i will loss 3 or 2 or 1 packets or all packets please refer the document .

i havent found at what frequency clock will generated by the laptop (pc) for request or reply

what are the procedure or how can i solve this issue i need some insight from the community.

my processor clock configured as 500khz

Microsoft Windows [Version 10.0.19045.2728]
(c) Microsoft Corporation. All rights reserved.
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.100: Destination host unreachable.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1746ms TTL=255
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 1746ms, Maximum = 1746ms, Average = 1746ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2574ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 2574ms, Maximum = 2574ms, Average = 2574ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2773ms TTL=255
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 2773ms, Maximum = 2773ms, Average = 2773ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
General failure.
Reply from 192.168.0.100: Destination host unreachable.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2039ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2056ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 3, Lost = 1 (25% loss),
Approximate round trip times in milli-seconds:
Minimum = 2039ms, Maximum = 2056ms, Average = 2047ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=919ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1229ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1783ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=3489ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 4, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
Minimum = 919ms, Maximum = 3489ms, Average = 1855ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=869ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1410ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 869ms, Maximum = 1410ms, Average = 1139ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=2085ms TTL=255
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 2085ms, Maximum = 2085ms, Average = 2085ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1253ms TTL=255
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 1253ms, Maximum = 1253ms, Average = 1253ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Reply from 192.168.0.100: Destination host unreachable.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=811ms TTL=255
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=1160ms TTL=255
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 2, Lost = 2 (50% loss),
Approximate round trip times in milli-seconds:
Minimum = 811ms, Maximum = 1160ms, Average = 985ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Reply from 192.168.0.102: bytes=32 - MISCOMPARE at offset 30 - time=3658ms TTL=255
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 1, Lost = 3 (75% loss),
Approximate round trip times in milli-seconds:
Minimum = 3658ms, Maximum = 3658ms, Average = 3658ms
C:\Users\admin>ping 192.168.0.102
Pinging 192.168.0.102 with 32 bytes of data:
Request timed out.
Request timed out.
Request timed out.
Request timed out.
Ping statistics for 192.168.0.102:
Packets: Sent = 4, Received = 0, Lost = 4 (100% loss),

thank you

jingpan · ‎04-12-2023

Hi @sandeep_c ,

You can try to print lwip debug message, such as ARP information and IP information. The information print switch are in opt.h.

Regards,

Jing

sandeep_c · ‎04-12-2023

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x20008BCC received, size=110 [tail=1 head=0]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200091B8

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200091B8 [pos=1]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 cd 0 0 80 11 6f c c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 cd 0 0 80 11 6f c c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:800

ETHTYPE_IP
pbuf_remove_header: old 20008BCC new 20008BDA (14)

pass to IP layer ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input
45 0 0 60 48 cd 0 0 80 11 6f c c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 1

2

3

test-4

test-5

ip_input: iphdr->dest 0xff00a8c0 netif->ip_addr 0x6600a8c0 (0xa8c0, 0xa8c0, 0xff000000)

ip4_input: packet accepted on interface en

test-6

test-7

test-8

test-9

/* send to upper layers */
ip4_input:

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 96 | (v, hl, tos, len)

+-------------------------------+

| 18637 |000| 0 | (id, flags, offset)

+-------------------------------+

| 128 | 17 | 0x6f0c | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 100 | (src)

+-------------------------------+

| 192 | 168 | 0 | 255 | (dest)

+-------------------------------+

ip4_input: p->len 96 p->tot_len 96

test-10

raw_input

IAM PRINTING RECIEVED PAYLOAD in raw_input fun
45 0 0 60 48 cd 0 0 80 11 6f c c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

1

count= 2 drop the packet

3

pbuf_remove_header: old 20008BDA new 20008BEE (20)

test-11

udp_input: received datagram of length 76

UDP header:

+-------------------------------+

| 137 | 137 | (src port, dest port)

+-------------------------------+

| 76 | 0xc77d | (len, chksum)

+-------------------------------+

udp (
192.168.0.255
, 137) <-- (
192.168.0.100
, 137)

pbuf_free(20008BBC)

pbuf_free: deallocating 20008BBC

sct calling h=dhcp_fine_tmr t=439 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=10834 handler=dhcp_fine_tmr arg=3002139C

sct calling h=ip_reass_tmr t=441 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=11345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=438 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=11360 handler=etharp_tmr arg=30021384

sct calling h=acd_tmr t=409 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=10917 handler=acd_tmr arg=300213A8

sct calling h=ping_timeout t=322 arg=20005A88

ping: send
192.168.0.100

pbuf_alloc(length=40)

pbuf_alloc(length=40) == 200002C4

IAM PREPARING ping_prepare_echo static seq num=6 lwip_htons(++ping_seq_num) =1536
IAM PREPARING ping_prepare_echo static seq num=6 lwip_htons(++ping_seq_num) =1536
IAM PREPARING ping_prepare_echo static seq num=6 lwip_htons(++ping_seq_num) =1536
IAM PREPARING ping_prepare_echo static seq num=6 lwip_htons(++ping_seq_num) =1536
IAM PREPARING ping_prepare_echo static seq num=6 lwip_htons(++ping_seq_num) =1536raw_sendto

netif_is_up=1netif_is_link_up=1,ip4_addr_isany_val
FORWADING IP PACKETS for IP ADDRESS--> IP4ROUTE
ip4 route FOUND TO SEND
FINDING raw_sendto_if_src
pbuf_add_header: old 200002F8 new 200002E4 (20)

pbuf_remove_header: old 200002E4 new 200002F8 (20)

pbuf_add_header: old 200002F8 new 200002E4 (20)

ip4_output_if: en0

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 60 | (v, hl, tos, len)

+-------------------------------+

| 5 |000| 0 | (id, flags, offset)

+-------------------------------+

| 255 | 1 | 0x39a1 | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 102 | (src)

+-------------------------------+

| 192 | 168 | 0 | 100 | (dest)

+-------------------------------+

ip4_output_if: call netif->output()

pbuf_add_header: old 200002E4 new 200002D6 (14)

ethernet_output: sending packet 200002C4

SENDING PACKET TO THE KSZ8851SNLI FILE

SENDING PACKET TO THE KSZ8851SNLI FILE
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 5 0 0 ff 1 39 a1 c0 a8 0 66 c0 a8 0 64 8 0 57 49 af af 0 6 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
ksz8851snl_low_level_output
RECIEVED PACKET FROM ethernet_output FILE address=200002C4
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 5 0 0 ff 1 39 a1 c0 a8 0 66 c0 a8 0 64 8 0 57 49 af af 0 6 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]

ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]
pbuf_free(200002C4)

pbuf_free: deallocating 200002C4

sys_timeout: 2000665C abs_time=12026 handler=ping_timeout arg=20005A88

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=116 [tail=0 head=0]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 125 BYTES of RX BUFFER

0 0 0 0 0 c8 81 74 0 2b 2 ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 ce 0 0 80 11 6f b c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 e9 78 1b b1

BUFFFER ARRAY =112

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 ce 0 0 80 11 6f b c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 i= 121
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200097C4 received, size=110 [tail=0 head=1]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 20008BBC

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x20008BBC [pos=0]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 ce 0 0 80 11 6f b c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 ce 0 0 80 11 6f b c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:800

ETHTYPE_IP
pbuf_remove_header: old 200097C4 new 200097D2 (14)

pass to IP layer ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input
45 0 0 60 48 ce 0 0 80 11 6f b c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 1

2

3

test-4

test-5

ip_input: iphdr->dest 0xff00a8c0 netif->ip_addr 0x6600a8c0 (0xa8c0, 0xa8c0, 0xff000000)

ip4_input: packet accepted on interface en

test-6

test-7

test-8

test-9

/* send to upper layers */
ip4_input:

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 96 | (v, hl, tos, len)

+-------------------------------+

| 18638 |000| 0 | (id, flags, offset)

+-------------------------------+

| 128 | 17 | 0x6f0b | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 100 | (src)

+-------------------------------+

| 192 | 168 | 0 | 255 | (dest)

+-------------------------------+

ip4_input: p->len 96 p->tot_len 96

test-10

raw_input

IAM PRINTING RECIEVED PAYLOAD in raw_input fun
45 0 0 60 48 ce 0 0 80 11 6f b c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64

1

count= 3 drop the packet

3

pbuf_remove_header: old 200097D2 new 200097E6 (20)

test-11

udp_input: received datagram of length 76

UDP header:

+-------------------------------+

| 137 | 137 | (src port, dest port)

+-------------------------------+

| 76 | 0x4d86 | (len, chksum)

+-------------------------------+

udp (
192.168.0.255
, 137) <-- (
192.168.0.100
, 137)

pbuf_free(200097B4)

pbuf_free: deallocating 200097B4

sct calling h=dhcp_fine_tmr t=662 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=12002 handler=dhcp_fine_tmr arg=3002139C

sct calling h=acd_tmr t=592 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=11614 handler=acd_tmr arg=300213A8

sct calling h=ip_reass_tmr t=175 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=12345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=173 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=12360 handler=etharp_tmr arg=30021384

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=66 [tail=1 head=1]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 77 BYTES of RX BUFFER

0 0 0 0 0 c8 81 42 0 e9 78 ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 3a dd 25 79 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 9 c8 76 fd 9 c8

BUFFFER ARRAY =62

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 3a dd 25 79 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 i= 71
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200091C8 received, size=60 [tail=1 head=0]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200097B4

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200097B4 [pos=1]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 3a dd 25 79 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 3a dd 25 79 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:806

ETHTYPE_ARP
pbuf_remove_header: old 200091C8 new 200091D6 (14)

/* pass p to ARP module etharp_input */
acd_arp_reply()

etharp_update_arp_entry: 192.168.0.100 - fc:3f:db:fb:58:8b

etharp_find_entry: found matching entry 0

etharp_update_arp_entry: updating stable entry 0

ARP_REQUEST
etharp_input: incoming ARP request

etharp_input: ARP request was not for us.

pbuf_free(200091B8)

pbuf_free: deallocating 200091B8

sct calling h=acd_tmr t=196 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=11916 handler=acd_tmr arg=300213A8

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=66 [tail=0 head=0]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 77 BYTES of RX BUFFER

0 0 0 0 0 c8 81 42 0 5c 76 ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 33 4d eb a 33 4d

BUFFFER ARRAY =62

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 i= 71
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851_reg_write RX step24: enable INT_RX flag if transfer complete
INTERRUPT OCCURED ENTER KEY
INTERRUPT OCCURED ENTER KEY
INTERRUPT OCCURED ENTER KEY
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x20008BCC received, size=60 [tail=0 head=1]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200091B8

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200091B8 [pos=0]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:806

ETHTYPE_ARP
pbuf_remove_header: old 20008BCC new 20008BDA (14)

/* pass p to ARP module etharp_input */
acd_arp_reply()

etharp_update_arp_entry: 192.168.0.100 - fc:3f:db:fb:58:8b

etharp_find_entry: found matching entry 0

etharp_update_arp_entry: updating stable entry 0

ARP_REQUEST
etharp_input: incoming ARP request

/* send ARP response */
pbuf_alloc(length=28)

pbuf_alloc(length=28) == 200002C4

etharp_raw: sending raw ARP packet.

pbuf_add_header: old 200002E4 new 200002D6 (14)

ethernet_output: sending packet 200002C4

SENDING PACKET TO THE KSZ8851SNLI FILE

SENDING PACKET TO THE KSZ8851SNLI FILE
fc 3f db fb 58 8b 2 12 13 10 15 11 8 6 0 1 8 0 6 4 0 2 2 12 13 10 15 11 c0 a8 0 66 fc 3f db fb 58 8b c0 a8 0 64
ksz8851snl_low_level_output
RECIEVED PACKET FROM ethernet_output FILE address=200002C4
fc 3f db fb 58 8b 2 12 13 10 15 11 8 6 0 1 8 0 6 4 0 2 2 12 13 10 15 11 c0 a8 0 66 fc 3f db fb 58 8b c0 a8 0 64 ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]

ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]

IAM FREEING THE ARP QUERY ADDRESS=200002C4
IAM FREEING THE ARP QUERY ADDRESS=200002C4
IAM FREEING THE ARP QUERY ADDRESS=200002C4pbuf_free(200002C4)

pbuf_free: deallocating 200002C4

pbuf_free(20008BBC)

pbuf_free: deallocating 20008BBC

sct calling h=acd_tmr t=273 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=12294 handler=acd_tmr arg=300213A8

sct calling h=dhcp_fine_tmr t=198 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=12502 handler=dhcp_fine_tmr arg=3002139C

sct calling h=ping_timeout t=187 arg=20005A88

ping: send
192.168.0.100

pbuf_alloc(length=40)

pbuf_alloc(length=40) == 200002C4

IAM PREPARING ping_prepare_echo static seq num=7 lwip_htons(++ping_seq_num) =1792
IAM PREPARING ping_prepare_echo static seq num=7 lwip_htons(++ping_seq_num) =1792
IAM PREPARING ping_prepare_echo static seq num=7 lwip_htons(++ping_seq_num) =1792
IAM PREPARING ping_prepare_echo static seq num=7 lwip_htons(++ping_seq_num) =1792
IAM PREPARING ping_prepare_echo static seq num=7 lwip_htons(++ping_seq_num) =1792raw_sendto

netif_is_up=1netif_is_link_up=1,ip4_addr_isany_val
FORWADING IP PACKETS for IP ADDRESS--> IP4ROUTE
ip4 route FOUND TO SEND
FINDING raw_sendto_if_src
pbuf_add_header: old 200002F8 new 200002E4 (20)

pbuf_remove_header: old 200002E4 new 200002F8 (20)

pbuf_add_header: old 200002F8 new 200002E4 (20)

ip4_output_if: en0

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 60 | (v, hl, tos, len)

+-------------------------------+

| 6 |000| 0 | (id, flags, offset)

+-------------------------------+

| 255 | 1 | 0x39a0 | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 102 | (src)

+-------------------------------+

| 192 | 168 | 0 | 100 | (dest)

+-------------------------------+

ip4_output_if: call netif->output()

pbuf_add_header: old 200002E4 new 200002D6 (14)

ethernet_output: sending packet 200002C4

SENDING PACKET TO THE KSZ8851SNLI FILE

SENDING PACKET TO THE KSZ8851SNLI FILE
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 6 0 0 ff 1 39 a0 c0 a8 0 66 c0 a8 0 64 8 0 57 48 af af 0 7 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
ksz8851snl_low_level_output
RECIEVED PACKET FROM ethernet_output FILE address=200002C4
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 6 0 0 ff 1 39 a0 c0 a8 0 66 c0 a8 0 64 8 0 57 48 af af 0 7 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]

ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]
pbuf_free(200002C4)

pbuf_free: deallocating 200002C4

sys_timeout: 2000665C abs_time=13416 handler=ping_timeout arg=20005A88

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING TX
ksz8851_reg_read TX step1: check if TXQ memory size is available for transmit
ksz8851_reg_write TX step2: disable all interruptsksz8851snl_update: TX start packet transmit len=74 [tail=1 head=1]

ksz8851snl_update: TX start packet transmit len=74 [tail=1 head=1]

ksz8851_reg_setbits TX step3:enable TXQ write access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_fifo_write_begin =TX step4-8 perform FIFO write operation PING PING

fifowrite total legth=74

FIFO WRITE Q ADDRESS == 2000021C
ksz8851_fifo_write= writing the tx buffer till q == NULL received length 74

ksz8851_fifo_write= writing the tx buffer till q == NULL received length 74

fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 2 0 0 ff 1 39 a4 c0 a8 0 66 c0 a8 0 64 8 0 57 4c af af 0 3 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f

c0 fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 2 0 0 ff 1 39 a4 c0 a8 0 66 c0 a8 0 64 8 0 57 4c af af 0 3 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
ksz8851_fifo_write_end=TX step9-10: pad with dummy data to keep dword alignment
ksz8851_fifo_write_end padding=2
ksz8851_reg_clrbits= TX step12 disable TXQ write access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits step12.1: enqueue frame in TXQ
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_write RX step13: enable INT_RX flag
INTERRUPT OCCURED ENTER KEY
INTERRUPT OCCURED ENTER KEY
INTERRUPT OCCURED ENTER KEYpbuf_free(2000021C)

pbuf_free: deallocating 2000021C

Buffer sent, free the corresponding buffer and mark descriptor as owned by software
ksz8851snl_low_level_input

RECIEVED PBUF IS NULL NULLL NULLsct calling h=acd_tmr t=377 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=12776 handler=acd_tmr arg=300213A8

sct calling h=ip_reass_tmr t=337 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=13345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=335 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=13360 handler=etharp_tmr arg=30021384

sct calling h=dhcp_fine_tmr t=206 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=13002 handler=dhcp_fine_tmr arg=3002139C

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING TX
ksz8851_reg_read TX step1: check if TXQ memory size is available for transmit
ksz8851_reg_write TX step2: disable all interruptsksz8851snl_update: TX start packet transmit len=42 [tail=0 head=1]

ksz8851snl_update: TX start packet transmit len=42 [tail=0 head=1]

ksz8851_reg_setbits TX step3:enable TXQ write access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_fifo_write_begin =TX step4-8 perform FIFO write operation PING PING

fifowrite total legth=42

FIFO WRITE Q ADDRESS == 20000280
ksz8851_fifo_write= writing the tx buffer till q == NULL received length 42

ksz8851_fifo_write= writing the tx buffer till q == NULL received length 42

fc 3f db fb 58 8b 2 12 13 10 15 11 8 6 0 1 8 0 6 4 0 2 2 12 13 10 15 11 c0 a8 0 66 fc 3f db fb 58 8b c0 a8 0 64

c0 fc 3f db fb 58 8b 2 12 13 10 15 11 8 6 0 1 8 0 6 4 0 2 2 12 13 10 15 11 c0 a8 0 66 fc 3f db fb 58 8b c0 a8 0 64
ksz8851_fifo_write_end=TX step9-10: pad with dummy data to keep dword alignment
ksz8851_fifo_write_end padding=2
ksz8851_reg_clrbits= TX step12 disable TXQ write access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits step12.1: enqueue frame in TXQ
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_write RX step13: enable INT_RX flag
INTERRUPT OCCURED ENTER KEY
INTERRUPT OCCURED ENTER KEY
INTERRUPT OCCURED ENTER KEYpbuf_free(20000280)

pbuf_free: deallocating 20000280

Buffer sent, free the corresponding buffer and mark descriptor as owned by software
ksz8851snl_low_level_input

RECIEVED PBUF IS NULL NULLL NULLsct calling h=acd_tmr t=179 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=13060 handler=acd_tmr arg=300213A8

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step1: read interrupt status for INT_RX flag
ksz8851_reg_write RX step2:disable all interrupts
ksz8851_reg_setbits RX step3:clear INT_RX flag
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_read RX step4-5:check for received frames
pending_frame value=
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=116 [tail=1 head=1]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 125 BYTES of RX BUFFER

0 0 0 0 0 c8 81 74 0 eb a ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 cf 0 0 80 11 6f a c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 e0 4b 3 47

BUFFFER ARRAY =112

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 cf 0 0 80 11 6f a c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 i= 121
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200097C4 received, size=110 [tail=1 head=0]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 20008BBC

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x20008BBC [pos=1]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 cf 0 0 80 11 6f a c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 cf 0 0 80 11 6f a c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:800

ETHTYPE_IP
pbuf_remove_header: old 200097C4 new 200097D2 (14)

pass to IP layer ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input
45 0 0 60 48 cf 0 0 80 11 6f a c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 1

2

3

test-4

test-5

ip_input: iphdr->dest 0xff00a8c0 netif->ip_addr 0x6600a8c0 (0xa8c0, 0xa8c0, 0xff000000)

ip4_input: packet accepted on interface en

test-6

test-7

test-8

test-9

/* send to upper layers */
ip4_input:

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 96 | (v, hl, tos, len)

+-------------------------------+

| 18639 |000| 0 | (id, flags, offset)

+-------------------------------+

| 128 | 17 | 0x6f0a | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 100 | (src)

+-------------------------------+

| 192 | 168 | 0 | 255 | (dest)

+-------------------------------+

ip4_input: p->len 96 p->tot_len 96

test-10

raw_input

IAM PRINTING RECIEVED PAYLOAD in raw_input fun
45 0 0 60 48 cf 0 0 80 11 6f a c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

1

count= 4 drop the packet

3

pbuf_remove_header: old 200097D2 new 200097E6 (20)

test-11

udp_input: received datagram of length 76

UDP header:

+-------------------------------+

| 137 | 137 | (src port, dest port)

+-------------------------------+

| 76 | 0xc780 | (len, chksum)

+-------------------------------+

udp (
192.168.0.255
, 137) <-- (
192.168.0.100
, 137)

pbuf_free(200097B4)

pbuf_free: deallocating 200097B4

sct calling h=dhcp_fine_tmr t=483 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=13502 handler=dhcp_fine_tmr arg=3002139C

sct calling h=acd_tmr t=438 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=13604 handler=acd_tmr arg=300213A8

sct calling h=ip_reass_tmr t=164 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=14345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=162 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=14360 handler=etharp_tmr arg=30021384

sct calling h=ping_timeout t=119 arg=20005A88

ping: send
192.168.0.100

pbuf_alloc(length=40)

pbuf_alloc(length=40) == 2000021C

IAM PREPARING ping_prepare_echo static seq num=8 lwip_htons(++ping_seq_num) =2048
IAM PREPARING ping_prepare_echo static seq num=8 lwip_htons(++ping_seq_num) =2048
IAM PREPARING ping_prepare_echo static seq num=8 lwip_htons(++ping_seq_num) =2048
IAM PREPARING ping_prepare_echo static seq num=8 lwip_htons(++ping_seq_num) =2048
IAM PREPARING ping_prepare_echo static seq num=8 lwip_htons(++ping_seq_num) =2048raw_sendto

netif_is_up=1netif_is_link_up=1,ip4_addr_isany_val
FORWADING IP PACKETS for IP ADDRESS--> IP4ROUTE
ip4 route FOUND TO SEND
FINDING raw_sendto_if_src
pbuf_add_header: old 20000250 new 2000023C (20)

pbuf_remove_header: old 2000023C new 20000250 (20)

pbuf_add_header: old 20000250 new 2000023C (20)

ip4_output_if: en0

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 60 | (v, hl, tos, len)

+-------------------------------+

| 7 |000| 0 | (id, flags, offset)

+-------------------------------+

| 255 | 1 | 0x399f | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 102 | (src)

+-------------------------------+

| 192 | 168 | 0 | 100 | (dest)

+-------------------------------+

ip4_output_if: call netif->output()

pbuf_add_header: old 2000023C new 2000022E (14)

ethernet_output: sending packet 2000021C

SENDING PACKET TO THE KSZ8851SNLI FILE

SENDING PACKET TO THE KSZ8851SNLI FILE
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 7 0 0 ff 1 39 9f c0 a8 0 66 c0 a8 0 64 8 0 57 47 af af 0 8 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
ksz8851snl_low_level_output
RECIEVED PACKET FROM ethernet_output FILE address=2000021C
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 7 0 0 ff 1 39 9f c0 a8 0 66 c0 a8 0 64 8 0 57 47 af af 0 8 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
copying address to ksz8851snli 2000021Cksz8851snl_low_level_output: DMA buffer 0x2000022E sent, size=74 [tail=1 head=1]

ksz8851snl_low_level_output: DMA buffer 0x2000022E sent, size=74 [tail=1 head=1]

IAM PRINTING RESTORED DATA==fc 3f db fb 58 8b 2 12 13 10 15 11 8 6 0 1 8 0 6 4 0 2 2 12 13 10 15 11 c0 a8 0 66 fc 3f db fb 58 8b c0 a8 0 64

fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 7 0 0 ff 1 39 9f c0 a8 0 66 c0 a8 0 64 8 0 57 47 af af 0 8 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f

pbuf_free(2000021C)

pbuf_free: 2000021C has ref 1, ending here.

sys_timeout: 2000665C abs_time=14776 handler=ping_timeout arg=20005A88

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=116 [tail=0 head=0]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 125 BYTES of RX BUFFER

0 0 0 0 0 c8 81 74 0 e0 4b ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d0 0 0 80 11 6f 9 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 8a 70 af 4d

BUFFFER ARRAY =112

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d0 0 0 80 11 6f 9 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 i= 121
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200091C8 received, size=110 [tail=0 head=1]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200097B4

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200097B4 [pos=0]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d0 0 0 80 11 6f 9 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d0 0 0 80 11 6f 9 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:800

ETHTYPE_IP
pbuf_remove_header: old 200091C8 new 200091D6 (14)

pass to IP layer ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input
45 0 0 60 48 d0 0 0 80 11 6f 9 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 1

2

3

test-4

test-5

ip_input: iphdr->dest 0xff00a8c0 netif->ip_addr 0x6600a8c0 (0xa8c0, 0xa8c0, 0xff000000)

ip4_input: packet accepted on interface en

test-6

test-7

test-8

test-9

/* send to upper layers */
ip4_input:

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 96 | (v, hl, tos, len)

+-------------------------------+

| 18640 |000| 0 | (id, flags, offset)

+-------------------------------+

| 128 | 17 | 0x6f09 | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 100 | (src)

+-------------------------------+

| 192 | 168 | 0 | 255 | (dest)

+-------------------------------+

ip4_input: p->len 96 p->tot_len 96

test-10

raw_input

IAM PRINTING RECIEVED PAYLOAD in raw_input fun
45 0 0 60 48 d0 0 0 80 11 6f 9 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64

1

count= 5 drop the packet

3

pbuf_remove_header: old 200091D6 new 200091EA (20)

test-11

udp_input: received datagram of length 76

UDP header:

+-------------------------------+

| 137 | 137 | (src port, dest port)

+-------------------------------+

| 76 | 0x4d86 | (len, chksum)

+-------------------------------+

udp (
192.168.0.255
, 137) <-- (
192.168.0.100
, 137)

pbuf_free(200091B8)

pbuf_free: deallocating 200091B8

sct calling h=dhcp_fine_tmr t=744 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=14752 handler=dhcp_fine_tmr arg=3002139C

sct calling h=acd_tmr t=655 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=14364 handler=acd_tmr arg=300213A8

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=116 [tail=1 head=1]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 125 BYTES of RX BUFFER

0 0 0 0 0 c8 81 74 0 8a 70 ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d1 0 0 80 11 6f 8 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 3b 10 21 cf

BUFFFER ARRAY =112

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d1 0 0 80 11 6f 8 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 i= 121
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x20008BCC received, size=110 [tail=1 head=0]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200091B8

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200091B8 [pos=1]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d1 0 0 80 11 6f 8 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d1 0 0 80 11 6f 8 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:800

ETHTYPE_IP
pbuf_remove_header: old 20008BCC new 20008BDA (14)

pass to IP layer ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input
45 0 0 60 48 d1 0 0 80 11 6f 8 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 1

2

3

test-4

test-5

ip_input: iphdr->dest 0xff00a8c0 netif->ip_addr 0x6600a8c0 (0xa8c0, 0xa8c0, 0xff000000)

ip4_input: packet accepted on interface en

test-6

test-7

test-8

test-9

/* send to upper layers */
ip4_input:

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 96 | (v, hl, tos, len)

+-------------------------------+

| 18641 |000| 0 | (id, flags, offset)

+-------------------------------+

| 128 | 17 | 0x6f08 | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 100 | (src)

+-------------------------------+

| 192 | 168 | 0 | 255 | (dest)

+-------------------------------+

ip4_input: p->len 96 p->tot_len 96

test-10

raw_input

IAM PRINTING RECIEVED PAYLOAD in raw_input fun
45 0 0 60 48 d1 0 0 80 11 6f 8 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

1

count= 6 drop the packet

3

pbuf_remove_header: old 20008BDA new 20008BEE (20)

test-11

udp_input: received datagram of length 76

UDP header:

+-------------------------------+

| 137 | 137 | (src port, dest port)

+-------------------------------+

| 76 | 0xc77d | (len, chksum)

+-------------------------------+

udp (
192.168.0.255
, 137) <-- (
192.168.0.100
, 137)

pbuf_free(20008BBC)

pbuf_free: deallocating 20008BBC

sct calling h=ip_reass_tmr t=389 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=15345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=387 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=15360 handler=etharp_tmr arg=30021384

sct calling h=acd_tmr t=396 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=14865 handler=acd_tmr arg=300213A8

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=66 [tail=0 head=0]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 77 BYTES of RX BUFFER

0 0 0 0 0 c8 81 42 0 3b 10 ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 44 5c 59 2b 44 5c

BUFFFER ARRAY =62

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 i= 71
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200097C4 received, size=60 [tail=0 head=1]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 20008BBC

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x20008BBC [pos=0]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:806

ETHTYPE_ARP
pbuf_remove_header: old 200097C4 new 200097D2 (14)

/* pass p to ARP module etharp_input */
acd_arp_reply()

etharp_update_arp_entry: 192.168.0.100 - fc:3f:db:fb:58:8b

etharp_find_entry: found matching entry 0

etharp_update_arp_entry: updating stable entry 0

ARP_REQUEST
etharp_input: incoming ARP request

etharp_input: ARP request was not for us.

pbuf_free(200097B4)

pbuf_free: deallocating 200097B4

sct calling h=dhcp_fine_tmr t=283 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=15252 handler=dhcp_fine_tmr arg=3002139C

sct calling h=ping_timeout t=272 arg=20005A88

ping: send
192.168.0.100

pbuf_alloc(length=40)

pbuf_alloc(length=40) == 20000280

IAM PREPARING ping_prepare_echo static seq num=9 lwip_htons(++ping_seq_num) =2304
IAM PREPARING ping_prepare_echo static seq num=9 lwip_htons(++ping_seq_num) =2304
IAM PREPARING ping_prepare_echo static seq num=9 lwip_htons(++ping_seq_num) =2304
IAM PREPARING ping_prepare_echo static seq num=9 lwip_htons(++ping_seq_num) =2304
IAM PREPARING ping_prepare_echo static seq num=9 lwip_htons(++ping_seq_num) =2304raw_sendto

netif_is_up=1netif_is_link_up=1,ip4_addr_isany_val
FORWADING IP PACKETS for IP ADDRESS--> IP4ROUTE
ip4 route FOUND TO SEND
FINDING raw_sendto_if_src
pbuf_add_header: old 200002B4 new 200002A0 (20)

pbuf_remove_header: old 200002A0 new 200002B4 (20)

pbuf_add_header: old 200002B4 new 200002A0 (20)

ip4_output_if: en0

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 60 | (v, hl, tos, len)

+-------------------------------+

| 8 |000| 0 | (id, flags, offset)

+-------------------------------+

| 255 | 1 | 0x399e | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 102 | (src)

+-------------------------------+

| 192 | 168 | 0 | 100 | (dest)

+-------------------------------+

ip4_output_if: call netif->output()

pbuf_add_header: old 200002A0 new 20000292 (14)

ethernet_output: sending packet 20000280

SENDING PACKET TO THE KSZ8851SNLI FILE

SENDING PACKET TO THE KSZ8851SNLI FILE
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 8 0 0 ff 1 39 9e c0 a8 0 66 c0 a8 0 64 8 0 57 46 af af 0 9 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
ksz8851snl_low_level_output
RECIEVED PACKET FROM ethernet_output FILE address=20000280
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 8 0 0 ff 1 39 9e c0 a8 0 66 c0 a8 0 64 8 0 57 46 af af 0 9 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
copying address to ksz8851snli 20000280ksz8851snl_low_level_output: DMA buffer 0x20000292 sent, size=74 [tail=1 head=0]

ksz8851snl_low_level_output: DMA buffer 0x20000292 sent, size=74 [tail=1 head=0]
pbuf_free(20000280)

pbuf_free: 20000280 has ref 1, ending here.

sys_timeout: 2000665C abs_time=16257 handler=ping_timeout arg=20005A88

sct calling h=acd_tmr t=399 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=15369 handler=acd_tmr arg=300213A8

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=66 [tail=1 head=1]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 77 BYTES of RX BUFFER

0 0 0 0 0 c8 81 42 0 ad a6 ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 58 eb 5a f1 58 eb

BUFFFER ARRAY =62

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 i= 71
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200091C8 received, size=60 [tail=1 head=0]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200097B4

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200097B4 [pos=1]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:806

ETHTYPE_ARP
pbuf_remove_header: old 200091C8 new 200091D6 (14)

/* pass p to ARP module etharp_input */
acd_arp_reply()

etharp_update_arp_entry: 192.168.0.100 - fc:3f:db:fb:58:8b

etharp_find_entry: found matching entry 0

etharp_update_arp_entry: updating stable entry 0

ARP_REQUEST
etharp_input: incoming ARP request

etharp_input: ARP request was not for us.

pbuf_free(200091B8)

pbuf_free: deallocating 200091B8

sct calling h=dhcp_fine_tmr t=286 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=15752 handler=dhcp_fine_tmr arg=3002139C

sct calling h=ip_reass_tmr t=206 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=16345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=203 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=16360 handler=etharp_tmr arg=30021384

sct calling h=acd_tmr t=208 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=15682 handler=acd_tmr arg=300213A8

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=66 [tail=0 head=0]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 77 BYTES of RX BUFFER

0 0 0 0 0 c8 81 42 0 a7 ee ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 33 4d eb a 33 4d

BUFFFER ARRAY =62

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 i= 71
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x20008BCC received, size=60 [tail=0 head=1]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200091B8

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200091B8 [pos=0]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 66 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:806

ETHTYPE_ARP
pbuf_remove_header: old 20008BCC new 20008BDA (14)

/* pass p to ARP module etharp_input */
acd_arp_reply()

etharp_update_arp_entry: 192.168.0.100 - fc:3f:db:fb:58:8b

etharp_find_entry: found matching entry 0

etharp_update_arp_entry: updating stable entry 0

ARP_REQUEST
etharp_input: incoming ARP request

/* send ARP response */
pbuf_alloc(length=28)

pbuf_alloc(length=28) == 200002E4

etharp_raw: sending raw ARP packet.

pbuf_add_header: old 20000304 new 200002F6 (14)

ethernet_output: sending packet 200002E4

SENDING PACKET TO THE KSZ8851SNLI FILE

SENDING PACKET TO THE KSZ8851SNLI FILE
fc 3f db fb 58 8b 2 12 13 10 15 11 8 6 0 1 8 0 6 4 0 2 2 12 13 10 15 11 c0 a8 0 66 fc 3f db fb 58 8b c0 a8 0 64
ksz8851snl_low_level_output
RECIEVED PACKET FROM ethernet_output FILE address=200002E4
fc 3f db fb 58 8b 2 12 13 10 15 11 8 6 0 1 8 0 6 4 0 2 2 12 13 10 15 11 c0 a8 0 66 fc 3f db fb 58 8b c0 a8 0 64 ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]

ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]

IAM FREEING THE ARP QUERY ADDRESS=200002E4
IAM FREEING THE ARP QUERY ADDRESS=200002E4
IAM FREEING THE ARP QUERY ADDRESS=200002E4pbuf_free(200002E4)

pbuf_free: deallocating 200002E4

pbuf_free(20008BBC)

pbuf_free: deallocating 20008BBC

sct calling h=acd_tmr t=253 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=16040 handler=acd_tmr arg=300213A8

sct calling h=dhcp_fine_tmr t=194 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=16252 handler=dhcp_fine_tmr arg=3002139C

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=116 [tail=1 head=1]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 125 BYTES of RX BUFFER

0 0 0 0 0 c8 81 74 0 eb a ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d2 0 0 80 11 6f 7 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 e3 a a6 4e

BUFFFER ARRAY =112

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d2 0 0 80 11 6f 7 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 i= 121
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200097C4 received, size=110 [tail=1 head=0]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 20008BBC

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x20008BBC [pos=1]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d2 0 0 80 11 6f 7 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d2 0 0 80 11 6f 7 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:800

ETHTYPE_IP
pbuf_remove_header: old 200097C4 new 200097D2 (14)

pass to IP layer ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input
45 0 0 60 48 d2 0 0 80 11 6f 7 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 1

2

3

test-4

test-5

ip_input: iphdr->dest 0xff00a8c0 netif->ip_addr 0x6600a8c0 (0xa8c0, 0xa8c0, 0xff000000)

ip4_input: packet accepted on interface en

test-6

test-7

test-8

test-9

/* send to upper layers */
ip4_input:

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 96 | (v, hl, tos, len)

+-------------------------------+

| 18642 |000| 0 | (id, flags, offset)

+-------------------------------+

| 128 | 17 | 0x6f07 | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 100 | (src)

+-------------------------------+

| 192 | 168 | 0 | 255 | (dest)

+-------------------------------+

ip4_input: p->len 96 p->tot_len 96

test-10

raw_input

IAM PRINTING RECIEVED PAYLOAD in raw_input fun
45 0 0 60 48 d2 0 0 80 11 6f 7 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 80 bb 65 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

1

count= 7 drop the packet

3

pbuf_remove_header: old 200097D2 new 200097E6 (20)

test-11

udp_input: received datagram of length 76

UDP header:

+-------------------------------+

| 137 | 137 | (src port, dest port)

+-------------------------------+

| 76 | 0xc780 | (len, chksum)

+-------------------------------+

udp (
192.168.0.255
, 137) <-- (
192.168.0.100
, 137)

pbuf_free(200097B4)

pbuf_free: deallocating 200097B4

sct calling h=acd_tmr t=383 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=16528 handler=acd_tmr arg=300213A8

sct calling h=dhcp_fine_tmr t=182 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=16752 handler=dhcp_fine_tmr arg=3002139C

sct calling h=ping_timeout t=190 arg=20005A88

ping: send
192.168.0.100

pbuf_alloc(length=40)

pbuf_alloc(length=40) == 200002E4

IAM PREPARING ping_prepare_echo static seq num=10 lwip_htons(++ping_seq_num) =2560
IAM PREPARING ping_prepare_echo static seq num=10 lwip_htons(++ping_seq_num) =2560
IAM PREPARING ping_prepare_echo static seq num=10 lwip_htons(++ping_seq_num) =2560
IAM PREPARING ping_prepare_echo static seq num=10 lwip_htons(++ping_seq_num) =2560
IAM PREPARING ping_prepare_echo static seq num=10 lwip_htons(++ping_seq_num) =2560raw_sendto

netif_is_up=1netif_is_link_up=1,ip4_addr_isany_val
FORWADING IP PACKETS for IP ADDRESS--> IP4ROUTE
ip4 route FOUND TO SEND
FINDING raw_sendto_if_src
pbuf_add_header: old 20000318 new 20000304 (20)

pbuf_remove_header: old 20000304 new 20000318 (20)

pbuf_add_header: old 20000318 new 20000304 (20)

ip4_output_if: en0

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 60 | (v, hl, tos, len)

+-------------------------------+

| 9 |000| 0 | (id, flags, offset)

+-------------------------------+

| 255 | 1 | 0x399d | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 102 | (src)

+-------------------------------+

| 192 | 168 | 0 | 100 | (dest)

+-------------------------------+

ip4_output_if: call netif->output()

pbuf_add_header: old 20000304 new 200002F6 (14)

ethernet_output: sending packet 200002E4

SENDING PACKET TO THE KSZ8851SNLI FILE

SENDING PACKET TO THE KSZ8851SNLI FILE
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 9 0 0 ff 1 39 9d c0 a8 0 66 c0 a8 0 64 8 0 57 45 af af 0 a 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
ksz8851snl_low_level_output
RECIEVED PACKET FROM ethernet_output FILE address=200002E4
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 9 0 0 ff 1 39 9d c0 a8 0 66 c0 a8 0 64 8 0 57 45 af af 0 a 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]

ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]
pbuf_free(200002E4)

pbuf_free: deallocating 200002E4

sys_timeout: 2000665C abs_time=17650 handler=ping_timeout arg=20005A88

sct calling h=ip_reass_tmr t=312 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=17345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=309 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=17360 handler=etharp_tmr arg=30021384

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=116 [tail=0 head=0]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 125 BYTES of RX BUFFER

0 0 0 0 0 c8 81 74 0 e3 a ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d3 0 0 80 11 6f 6 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 ea 39 be b8

BUFFFER ARRAY =112

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d3 0 0 80 11 6f 6 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 i= 121
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200091C8 received, size=110 [tail=0 head=1]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200097B4

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200097B4 [pos=0]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d3 0 0 80 11 6f 6 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d3 0 0 80 11 6f 6 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:800

ETHTYPE_IP
pbuf_remove_header: old 200091C8 new 200091D6 (14)

pass to IP layer ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input
45 0 0 60 48 d3 0 0 80 11 6f 6 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64 1

2

3

test-4

test-5

ip_input: iphdr->dest 0xff00a8c0 netif->ip_addr 0x6600a8c0 (0xa8c0, 0xa8c0, 0xff000000)

ip4_input: packet accepted on interface en

test-6

test-7

test-8

test-9

/* send to upper layers */
ip4_input:

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 96 | (v, hl, tos, len)

+-------------------------------+

| 18643 |000| 0 | (id, flags, offset)

+-------------------------------+

| 128 | 17 | 0x6f06 | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 100 | (src)

+-------------------------------+

| 192 | 168 | 0 | 255 | (dest)

+-------------------------------+

ip4_input: p->len 96 p->tot_len 96

test-10

raw_input

IAM PRINTING RECIEVED PAYLOAD in raw_input fun
45 0 0 60 48 d3 0 0 80 11 6f 6 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c 4d 86 bb 67 29 10 0 1 0 0 0 0 0 1 20 46 48 45 50 46 43 45 4c 45 48 46 43 45 50 46 46 46 41 43 41 43 41 43 41 43 41 43 41 43 41 41 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 c0 0 c0 a8 0 64

1

count= 8 drop the packet

3

pbuf_remove_header: old 200091D6 new 200091EA (20)

test-11

udp_input: received datagram of length 76

UDP header:

+-------------------------------+

| 137 | 137 | (src port, dest port)

+-------------------------------+

| 76 | 0x4d86 | (len, chksum)

+-------------------------------+

udp (
192.168.0.255
, 137) <-- (
192.168.0.100
, 137)

pbuf_free(200091B8)

pbuf_free: deallocating 200091B8

sct calling h=acd_tmr t=619 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=17252 handler=acd_tmr arg=300213A8

sct calling h=dhcp_fine_tmr t=406 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=17252 handler=dhcp_fine_tmr arg=3002139C

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=116 [tail=1 head=1]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 125 BYTES of RX BUFFER

0 0 0 0 0 c8 81 74 0 ea 39 ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d4 0 0 80 11 6f 5 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 c6 93 77 c1

BUFFFER ARRAY =112

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d4 0 0 80 11 6f 5 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 i= 121
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x20008BCC received, size=110 [tail=1 head=0]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200091B8

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200091B8 [pos=1]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d4 0 0 80 11 6f 5 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 0 45 0 0 60 48 d4 0 0 80 11 6f 5 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:800

ETHTYPE_IP
pbuf_remove_header: old 20008BCC new 20008BDA (14)

pass to IP layer ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input

IAM PRINTING RECIEVED PAYLOAD ip4_input
45 0 0 60 48 d4 0 0 80 11 6f 5 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64 1

2

3

test-4

test-5

ip_input: iphdr->dest 0xff00a8c0 netif->ip_addr 0x6600a8c0 (0xa8c0, 0xa8c0, 0xff000000)

ip4_input: packet accepted on interface en

test-6

test-7

test-8

test-9

/* send to upper layers */
ip4_input:

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 96 | (v, hl, tos, len)

+-------------------------------+

| 18644 |000| 0 | (id, flags, offset)

+-------------------------------+

| 128 | 17 | 0x6f05 | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 100 | (src)

+-------------------------------+

| 192 | 168 | 0 | 255 | (dest)

+-------------------------------+

ip4_input: p->len 96 p->tot_len 96

test-10

raw_input

IAM PRINTING RECIEVED PAYLOAD in raw_input fun
45 0 0 60 48 d4 0 0 80 11 6f 5 c0 a8 0 64 c0 a8 0 ff 0 89 0 89 0 4c c7 7d bb 66 29 10 0 1 0 0 0 0 0 1 20 45 45 45 46 46 44 45 4c 46 45 45 50 46 41 43 4e 45 43 44 43 46 44 44 45 45 43 45 43 46 41 43 41 0 0 20 0 1 c0 c 0 20 0 1 0 4 93 e0 0 6 40 0 c0 a8 0 64

1

count= 9 drop the packet

3

pbuf_remove_header: old 20008BDA new 20008BEE (20)

test-11

udp_input: received datagram of length 76

UDP header:

+-------------------------------+

| 137 | 137 | (src port, dest port)

+-------------------------------+

| 76 | 0xc77d | (len, chksum)

+-------------------------------+

udp (
192.168.0.255
, 137) <-- (
192.168.0.100
, 137)

pbuf_free(20008BBC)

pbuf_free: deallocating 20008BBC

sct calling h=acd_tmr t=383 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=17740 handler=acd_tmr arg=300213A8

sct calling h=dhcp_fine_tmr t=394 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=17752 handler=dhcp_fine_tmr arg=3002139C

sct calling h=ip_reass_tmr t=314 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=18345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=312 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=18360 handler=etharp_tmr arg=30021384

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=66 [tail=0 head=0]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 77 BYTES of RX BUFFER

0 0 0 0 0 c8 81 42 0 c6 93 ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 44 5c 59 2b 44 5c

BUFFFER ARRAY =62

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 i= 71
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200097C4 received, size=60 [tail=0 head=1]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 20008BBC

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x20008BBC [pos=0]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 c0 a8 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:806

ETHTYPE_ARP
pbuf_remove_header: old 200097C4 new 200097D2 (14)

/* pass p to ARP module etharp_input */
acd_arp_reply()

etharp_update_arp_entry: 192.168.0.100 - fc:3f:db:fb:58:8b

etharp_find_entry: found matching entry 0

etharp_update_arp_entry: updating stable entry 0

ARP_REQUEST
etharp_input: incoming ARP request

etharp_input: ARP request was not for us.

pbuf_free(200097B4)

pbuf_free: deallocating 200097B4

sct calling h=ping_timeout t=298 arg=20005A88

ping: send
192.168.0.100

pbuf_alloc(length=40)

pbuf_alloc(length=40) == 200002E4

IAM PREPARING ping_prepare_echo static seq num=11 lwip_htons(++ping_seq_num) =2816
IAM PREPARING ping_prepare_echo static seq num=11 lwip_htons(++ping_seq_num) =2816
IAM PREPARING ping_prepare_echo static seq num=11 lwip_htons(++ping_seq_num) =2816
IAM PREPARING ping_prepare_echo static seq num=11 lwip_htons(++ping_seq_num) =2816
IAM PREPARING ping_prepare_echo static seq num=11 lwip_htons(++ping_seq_num) =2816raw_sendto

netif_is_up=1netif_is_link_up=1,ip4_addr_isany_val
FORWADING IP PACKETS for IP ADDRESS--> IP4ROUTE
ip4 route FOUND TO SEND
FINDING raw_sendto_if_src
pbuf_add_header: old 20000318 new 20000304 (20)

pbuf_remove_header: old 20000304 new 20000318 (20)

pbuf_add_header: old 20000318 new 20000304 (20)

ip4_output_if: en0

IP header:

+-------------------------------+

| 4 | 5 | 0x00 | 60 | (v, hl, tos, len)

+-------------------------------+

| 10 |000| 0 | (id, flags, offset)

+-------------------------------+

| 255 | 1 | 0x399c | (ttl, proto, chksum)

+-------------------------------+

| 192 | 168 | 0 | 102 | (src)

+-------------------------------+

| 192 | 168 | 0 | 100 | (dest)

+-------------------------------+

ip4_output_if: call netif->output()

pbuf_add_header: old 20000304 new 200002F6 (14)

ethernet_output: sending packet 200002E4

SENDING PACKET TO THE KSZ8851SNLI FILE

SENDING PACKET TO THE KSZ8851SNLI FILE
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 a 0 0 ff 1 39 9c c0 a8 0 66 c0 a8 0 64 8 0 57 44 af af 0 b 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f
ksz8851snl_low_level_output
RECIEVED PACKET FROM ethernet_output FILE address=200002E4
fc 3f db fb 58 8b 2 12 13 10 15 11 8 0 45 0 0 3c 0 a 0 0 ff 1 39 9c c0 a8 0 66 c0 a8 0 64 8 0 57 44 af af 0 b 0 1 2 3 4 5 6 7 8 9 a b c d e f 10 11 12 13 14 15 16 17 18 19 1a 1b 1c 1d 1e 1f ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]

ksz8851snl_low_level_output: out of free descriptor! [tail=1 head=1]
pbuf_free(200002E4)

pbuf_free: deallocating 200002E4

sys_timeout: 2000665C abs_time=19152 handler=ping_timeout arg=20005A88

sct calling h=acd_tmr t=418 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=18263 handler=acd_tmr arg=300213A8

sct calling h=dhcp_fine_tmr t=417 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=18252 handler=dhcp_fine_tmr arg=3002139C

IAM IN WHILE LOOP

ethernetif_input
ksz8851snl_update
IAM HANDLING RX
IAM HANDLING RX
IAM HANDLING RX
ksz8851_reg_read RX step6: get RX packet status
ksz8851_reg_read RX step7:read frame lengthksz8851snl_update: RX start packet receive len=66 [tail=1 head=1]

ksz8851_reg_clrbits=RX step9:reset RX frame pointer.
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
ksz8851_reg_setbits RX step10: start RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits
Remove CRC and update pbuf length
step11-17: start FIFO read operation

IAM PRINTING FIRST 77 BYTES of RX BUFFER

0 0 0 0 0 c8 81 42 0 59 2b ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 58 eb 5a f1 58 eb

BUFFFER ARRAY =62

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 i= 71
done succesfullyksz8851_fifo_read

done succesfullyksz8851_fifo_read

ksz8851_reg_clrbits= RX step21:end RXQ read access
ksz8851_reg_read ksz8851_reg_setbits
ksz8851_reg_write ksz8851_reg_setbits

step22-23
ksz8851snl_low_level_inputksz8851snl_low_level_input: DMA buffer 0x200091C8 received, size=60 [tail=1 head=0]

ksz8851snl_rx_populate_queuepbuf_alloc(length=1516)

pbuf_alloc(length=1516) == 200097B4

ksz8851snl_rx_populate_queue: new pbuf allocated with size 1516: 0x200097B4 [pos=1]

after ksz8851snl_low_level_input

after ksz8851snl_low_level_input
ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0

IAM PRINTING IN ethernet_input FUN

ff ff ff ff ff ff fc 3f db fb 58 8b 8 6 0 1 8 0 6 4 0 1 fc 3f db fb 58 8b c0 a8 0 64 0 0 0 0 0 0 8 8 8 8 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 ethernet_input: dest:ff:ff:ff:ff:ff:ff, src:fc:3f:db:fb:58:8b, type:806

ETHTYPE_ARP
pbuf_remove_header: old 200091C8 new 200091D6 (14)

/* pass p to ARP module etharp_input */
acd_arp_reply()

etharp_update_arp_entry: 192.168.0.100 - fc:3f:db:fb:58:8b

etharp_find_entry: found matching entry 0

etharp_update_arp_entry: updating stable entry 0

ARP_REQUEST
etharp_input: incoming ARP request

etharp_input: ARP request was not for us.

pbuf_free(200091B8)

pbuf_free: deallocating 200091B8

sct calling h=dhcp_fine_tmr t=193 arg=3002139C

tcpip: dhcp_fine_tmr()

sys_timeout: 20006684 abs_time=18752 handler=dhcp_fine_tmr arg=3002139C

sct calling h=acd_tmr t=195 arg=300213A8

tcpip: acd_tmr()

sys_timeout: 20006670 abs_time=18563 handler=acd_tmr arg=300213A8

sct calling h=ip_reass_tmr t=124 arg=30021378

tcpip: ip_reass_tmr()

sys_timeout: 200066C0 abs_time=19345 handler=ip_reass_tmr arg=30021378

sct calling h=etharp_tmr t=122 arg=30021384

tcpip: etharp_tmr()

etharp_timer

sys_timeout: 200066AC abs_time=19360 handler=etharp_tmr arg=30021384

@jingpan @Sanket_Parekh