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

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

[Huai-En Tseng]

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.

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

[Stephen Hemminger]

On Wed, 3 Jul 2019 16:05:34 +0800
Huai-En Tseng <the@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.

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

[Huai-En Tseng]

Hi Stephen,

Thanks for reply.

I have the impression that rte flow raw API only support a few Intel NICs and is only in physical function not virtual function.

Is there other method to match raw byte string and direct to specific receive queue, there are only 2 bytes can be accessed on X520 NIC.

Or should I just buy a Intel 700 series NIC?

By the way, what is flex payload, is this a kind of feature only on Intel 700 series NICs?

Thanks a lot.

> Stephen Hemminger <stephen@networkplumber.org> 於 2019年7月3日 下午10:51 寫道：
> 
> On Wed, 3 Jul 2019 16:05:34 +0800
> Huai-En Tseng <the@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.