Hi,
I recently upgraded our DPDK to 22.11.1 and observed that the guest vmxnet3
interface is not receiving any unicast packets. It's able to receive the
broadcast packets though. We enable promiscuous and all-multicast on the port.

rte_eth_promiscuous_enable(port);
rte_eth_allmulticast_enable(port);

This happens when the vswitch has only 2 ports attached. 

On further triaging,
-  I could find out that on the same setup, dpdk-20.11 works fine. 
-  Upon comparing the working scenario and non-working scenario on esx host, I
could notice that there is some difference in port configuration of vswitch.

Below is the snapshot of working case, where the  ethFRP:frame routing {
requested:filter flags is 0x1d. 

port {
   port index:365
   vnic index:0x00000003
   portCfg:build_1_15_2_vm-v3--p1e3-u2e3
   dvPortId:
   clientName:sjc-cms-esx15-csm02-pan1
   clientType: 5 -> VMM Virtual NIC
   clientSubType: 9 -> Vmxnet3 Client
   world leader:2120158
   flags: 0x40013 -> IN_USE ENABLED WORLD_ASSOC CONNECTED
   Impl customized blocked flags:0x00000000
   Passthru status: 0x8 -> DISABLED_BY_HOST
   fixed Hw Id:00:50:56:b8:20:aa:
   ethFRP:frame routing {
      requested:filter {
         flags:0x0000001d
         unicastAddr:00:50:56:b8:20:aa:
         numMulticastAddresses:0
         multicastAddresses:
         LADRF:[0]: 0x0 
         [1]: 0x0 
      }
      accepted:filter {
         flags:0x0000001d
         unicastAddr:00:50:56:b8:20:aa:
         numMulticastAddresses:0
         multicastAddresses:
         LADRF:[0]: 0x0 
         [1]: 0x0 
      }
   }


For the non-working case the flag is set to 0x09.

port {
   port index:365
   vnic index:0x00000003
   portCfg:build_1_15_2_vm-v3--p1e3-u2e3
   dvPortId:
   clientName:sjc-cms-esx15-csm02-pan1
   clientType: 5 -> VMM Virtual NIC
   clientSubType: 9 -> Vmxnet3 Client
   world leader:2120158
   flags: 0x40013 -> IN_USE ENABLED WORLD_ASSOC CONNECTED
   Impl customized blocked flags:0x00000000
   Passthru status: 0x8 -> DISABLED_BY_HOST
   fixed Hw Id:00:50:56:b8:20:aa:
   ethFRP:frame routing {
      requested:filter {
         flags:0x00000009
         unicastAddr:00:50:56:b8:20:aa:
         numMulticastAddresses:0
         multicastAddresses:
         LADRF:[0]: 0x0 
         [1]: 0x0 
      }
      accepted:filter {
         flags:0x00000009
         unicastAddr:00:50:56:b8:20:aa:
         numMulticastAddresses:0
         multicastAddresses:
         LADRF:[0]: 0x0 
         [1]: 0x0 
      }
   }
   filter supported features: 0 -> NONE
   filter properties: 0 -> NONE
   rx mode: 0 -> INLINE
   tune mode: 0 -> default
   fastpath switch ID:0xffffffff
   fastpath port ID:0xffffffff
}

I think these are some of the flags set by vmxnet3 device and in dpdk-22.11,
its not updating the flags.

Could you please help on this??


I would try to create a simplest test setup with testpmd and update here.