Re: [PATCH] net/mlx5: fix connection tracking state item validation

[Khadem Ullah <14pwcse1224@uetpeshawar.edu.pk>]

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Thank you for providing these details. Sure, I will go through it (will
performed the experiment) and come back to you.
I totally agree that the documentation about connection tracking should be
improved.


On Mon, Aug 11, 2025 at 8:17 PM Dariusz Sosnowski <dsosnowski@nvidia.com>
wrote:

>
> > Are these the only testpmd commands you execute?
>
> No, as I mentioned earlier, I have provided only relevant information. I
had added something similar commands as yours,
the following was missing from my configurations.

set conntrack com peer 1 is_orig 1 enable 1 live 1 sack 1 cack 0 last_dir 0
liberal 1 state 0 max_ack_win 7
r_lim 3 last_win 510 last_seq 65535 last_ack 65537 last_end 65545
last_index 0x8

set conntrack orig scale 7 fin 1 acked 1 unack_data 0 sent_end 65545
reply_end 65535 max_win 28960 max_ack 2632987379
set conntrack rply scale 7 fin 0 acked 1 unack_data 0 sent_end 65545
reply_end 65535 max_win 65280 max_ack 2532480967

. > 3 conntrack item deals with RTE_FLOW_CONNTRACK_PKT_STATE_* bitmap

  > In your example, "conntrack is 1" specification sets flags to 1.
   > This means, "match packets with RTE_FLOW_CONNTRACK_PKT_STATE_VALID"
   >and not "connection in RTE_FLOW_CONNTRACK_STATE_ESTABLISHED".

   > The same goes for "conntrack is 2". It specifies match on
   > RTE_FLOW_CONNTRACK_PKT_STATE_CHANGED, not on
   >R TE_FLOW_CONNTRACK_STATE_FIN_WAIT or any other state.
>
  > Because it is a bitmap, conntrack item can specify a combination of
   >P KT_STATE flags. For example, "conntrack is 3" would mean matching
   >a packet with RTE_FLOW_CONNTRACK_PKT_STATE_VALID and
   >RTE_FLOW_CONNTRACK_PKT_STATE_CHANGED flags set.

Can this RTE_FLOW_CONNTRACK_PKT_STATE_* bitmap be represented with a
specific valid range ?
for example, we can say, 'conntrack is' valid for 1 to 8, or any other
range. As, currently user can specify
any value e.g., 1000 and it allows it.

Thanks again!
Best regards,
Khadem

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