[dpdk-users] direct specific packets to specific receive queue

Stephen Hemminger stephen at networkplumber.org
Wed Jul 3 16:51:10 CEST 2019


On Wed, 3 Jul 2019 16:05:34 +0800
Huai-En Tseng <the at csie.io> wrote:

> Hi, 
> 
> I suppose below three things to understand what difference between flex filter, fdir, flex payload and how to use them by tracing source code in testpmd.
>  
> First, while I use flex filter API with rte_eth_dev_filter_ctrl(), RTE_ETH_FILTER_FLEXIBLE  and struct rte_eth_flex_filter on my CX4 and X520 its not working.
> 
> And I find that in dpdk NIC driver there are only a little NICs like igb NIC support it, so I assume flex filter does not support most NICs such as i40e, ixgbe, ixgbevf and mlx5.
> 
> Second, I assume the fdir API is a smaller set which is included the flex filter API.
> 
> Third,  flex payload is kind of flex filter API application.
> 
> Is all my assumption right?
> 
> And is there any full support hardware list?
> 
> Last question, is there any method that I can direct specific packets to specific receive queue?
> 
> I want to direct pppoe packets to specific receive queue. 
> 
> I have tried the raw fdir API but it has limited function in X520, and testpmd flex filter is not working on my CX4 and X520 too.
> 
> I also find there is a feature DDP in Intel 700 series NICs but it seems only detects pppoe header but I need to detect ppp header in pppoe header.
> 
> Thanks a lot.

Did you know that flex filter and fdir are older API's that were only supported on a few Intel NIC's.


Use rte_flow instead.


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