Hello Cavium Ethernet Driver Maintainers, I'm working on a custom board using a Cavium OcteonTX CN80XX cpu running a mainline 4.12.7 kernel and I've run into a problem where the TX of my BGX0 configured for SGMII becomes stuck.
After boot I'm able to bring the interface up, run dhclient, and ping a host machine with no issues. However, every time that I try to run an iperf TCP test I get a stuck TX queue. Bringing the interface down and then up does not resolve the problem, but physically reconnecting the cable connected to the interface does. Also, after I reconnect the cable I am no longer able to reproduce the stuck TX queue until reboot. I receive no kernel driver messages of any sort during my iperf test, it just stalls until I kill it. Any help would be appreciated. Regards, Robert Jones - Software Engineer Gateworks Corporation
