** Also affects: linux-bluefield (Ubuntu Focal)
   Importance: Undecided
       Status: New

** Changed in: linux-bluefield (Ubuntu Focal)
   Importance: Undecided => Medium

** Changed in: linux-bluefield (Ubuntu Focal)
       Status: New => In Progress

** Changed in: linux-bluefield (Ubuntu Focal)
     Assignee: (unassigned) => Bodong Wang (bodong-wang)

** Changed in: linux-bluefield (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/1995004

Title:
  Increase stability with connection tracking offload

Status in linux-bluefield package in Ubuntu:
  Invalid
Status in linux-bluefield source package in Focal:
  In Progress

Bug description:
  * Explain the bug(s)

  Currently qdisc ingress handling (sch_handle_ingress()) doesn't
  set a return value and it is left to the old return value of
  the caller (__netif_receive_skb_core()) which is RX drop, so if
  the packet is consumed, caller will stop and return this value
  as if the packet was dropped.

  Also, include set of patches to increase stability with connection
  tracking offload, including reduced cpu load and possible deadlock on
  cleanup.

  * What it could break.

  Packet on egress tc rule forwarding to a ingress tc rule will drop.
  High cpu load. Possible deadlock on cleanup.

  * How to test

  Run connection tracking hw offload scenario with millions of flows,
  check cpu load, test cleanup and readd scenarios.

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