LX2160ARDB_REV2 SFP RX Issue

tsungmin_wang — Mon, 24 Jan 2022 09:06:43 GMT

Hi NXP,

We use XFI to connect to SFP cage without PHY.

Currently, the system can detect the link status of SFP cage.

But, when I used pktgen to test. I found that the receive side could not get any packet.

I just connected the SFP port directly.

And make sure the status

ifconfig after pktgen

eth8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet6 fe80::b8fe:9ff:fe4f:1c4e prefixlen 64 scopeid 0x20<link> ether ba:fe:09:4f:1c:4e txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 1010 bytes 58796 (57.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 eth9: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet6 fe80::2044:c6ff:febd:e856 prefixlen 64 scopeid 0x20<link> ether 22:44:c6:bd:e8:56 txqueuelen 1000 (Ethernet) RX packets 0 bytes 0 (0.0 B) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 10 bytes 796 (796.0 B) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0

RX packets of the receive side (eth9) is still 0, what may cause this issue?

Re: LX2160ARDB_REV2 SFP RX Issue

ufedor — Mon, 24 Jan 2022 18:17:57 GMT

Please provide additional information:

1) U-Boot booting log

2) the processor connection schematics

3) frequencies of all applied SerDes reference clocks

Re: LX2160ARDB_REV2 SFP RX Issue

tsungmin_wang — Tue, 25 Jan 2022 01:38:10 GMT

Hi,

Please check the attachments.

Including uboot log, serdes1-sch and clockgen-sch.

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