Intel E810-XXV adapters unable to send multicast packets in ROCE mode

Solution In Progress - Updated -

Issue

  • Intel E810-XXV adapters using irdma driver unable to send multicast packets in ROCE mode. The devices receive multicast, but cannot send. The counter ip4OutMcastPkts is increasing, but traffic is never sent.

Environment

  • Red Hat Enterprise Linux (RHEL) 8
  • Intel E810-XXV used via the RDMA subsystem in RoCE mode
  • irdma driver

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