Public bug reported:

[SHORT DESCRIPTION]:

when we add traffic rules using the SW steering that supported by MLX5
driver in Ubuntu 20.04, we see that the rules added into the kernel and
the packages that stand in those rules are dropped. but the dropped
packets counters don't increase by the driver.

[HOW TO REPRODUCE THE ISSUE]

1.configure  SW Steering and ovs bridge (on both HV)
2. install one vm on each side 
3. create to virtual function and attach it to the vm
4.  configure action forward* in one side of HV* (sender side):
    ovs-ofctl add-flow ovs-sriov 
"tcp,in_port=ens5f0_0,nw_src=13.13.1.2,nw_dst=13.13.1.1,tp_src=8922,tp_dst=8922 
action=drop" 
5. check that the rulse added:
    dump-flows ovs-sriov --color
6. in VM (server side) run: iperf -s -p 9822
7. in VM (client side) run : iperf -c 13.13.1.1 -p 8922 -B 13.13.1.2:8922
8. verify counter

[EXPECTED RESULT]

increase dropped packets counter

[ ACTUAL RESULT ]
dropped packets counter  doesn't increase

[ADDITIONAL INFO]

the issue was resolved upstream, I need to verify that the upstream fix really 
fixes the issue on UB20.04 and once we verify it I will add the fix here.
 

machine info:
Product Name   : ProLiant DL380 Gen9
Bios Release   : P89 10/21/2019
Architecture   : x86_64
Linux Distro   : Ubuntu Focal Fossa (development branch)
Kernel-Version : 5.4.0-18-generic

** Affects: focal (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: focal

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https://bugs.launchpad.net/bugs/1868624

Title:
  ASAP/MLX5:  drop counter not increase with datapath action=drop in SW
  STEERING

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