Other NICs appear unaffected, including cx6dx on 3n-alt, but cx7 is affected in each run. The losses of around 10% seem constant within test run, at least at lower loads. For example here [0] the 9001pps trials have the same loss of 1100 packets, but run #2 has 1135 packets and #3 has 1130. Maybe one of 8 RX (or TX) queues does not work? We are not running 4c 1518B test, but 4c 64B is not affected.

[0] https://s3-logs.fd.io/vex-yul-rot-jenkins-1/csit-dpdk-perf-report-iterative-2410-2n-icx/1/log.html.gz#s1-s1-s1-s3-t9-k2-k5-k14