How to add ntuple filter with different masks?

[OYILM1]

Hi.

We are trying add different ntuple rules with different masks but nic doesn't allow to do so.

For example:

ethtool -N enp7s0f1 flow-type tcp4 src-ip 172.16.0.0 m 0.0.255.255 action -1

After adding above rule, when i try adding another rule with different mask, i get error

ethtool -N enp7s0f1 flow-type tcp4 src-ip 192.168.0.0 m 0.0.0.255 action -1

I got this error

rmgr: Cannot insert RX class rule: Invalid argument

and that error on dmesg

ixgbe 0000:07:00.1 enp7s0f1: Only one mask supported per port

And this is also valid for src-ip dst-ip src-port dst-port pairs. I can add a rule only if it has same mask for all options.

These are properties of my test machine.

Ethernet controller: Intel Corporation 82599ES 10-Gigabit SFI/SFP+ Network Connection (rev 01)

Kernel version: 3.15.9

ixgbe version: 4.0.1-k-rh7.1

OS: Centos 7

ethtool version: 3.8 (also tried with 3.18)

I wonder if there is a solution for that? Is it because of nic capability? or can it be fixed by recompiling driver with an option? etc.

Thanks for any help.

[st4]

Hi labrisnetworks,

Thank you for the info, we will check on this.

rgds,

wb

[st4]

Hi labrisnetworks,

Thank you for the info, we will check on this.

rgds,

wb

[st4]

Hi labrisnetworks,

You may refer to this website

https://www.kernel.org/doc/Documentation/networking/ixgbe.txt https://www.kernel.org/doc/Documentation/networking/ixgbe.txt

Please refer to Intel Ethernet Flow Director:->Other ethtool Commands:

To enable Flow Director ethtool -K ethX ntuple on

To add a filter Use -U switch. e.g., ethtool -U ethX flow-type tcp4 src-ip 10.0.128.23 action 1

To see the list of filters currently present: ethtool -u ethX

Hope this helps.

rgds

wb

[OYILM1]

Hi.

Thanks but your answer isn't helpful at all. I know how to use ethtool.

My question was that what is the reason I got the error "only one mask supported per port"? Is there any way to solve that including to use another nic?

[st4]

Hi Labrisnetworks,

Thank you for the reply.I will further check on this.

rgds,

wb

[st4]

Hi Labrisnetworks,

Good day. Further checking adding ntuple filter to different mask is not doable.

Thanks,

wb

[st4]

Hi labrisnetworks,

You may refer to this website

https://www.kernel.org/doc/Documentation/networking/ixgbe.txt https://www.kernel.org/doc/Documentation/networking/ixgbe.txt

Please refer to Intel Ethernet Flow Director:->Other ethtool Commands:

To enable Flow Director ethtool -K ethX ntuple on

To add a filter Use -U switch. e.g., ethtool -U ethX flow-type tcp4 src-ip 10.0.128.23 action 1

To see the list of filters currently present: ethtool -u ethX

Hope this helps.

rgds

wb

[OYILM1]

Hi.

Thanks but your answer isn't helpful at all. I know how to use ethtool.

My question was that what is the reason I got the error "only one mask supported per port"? Is there any way to solve that including to use another nic?

[st4]

Hi Labrisnetworks,

Thank you for the reply.I will further check on this.

rgds,

wb

[st4]

Hi Labrisnetworks,

Good day. Further checking adding ntuple filter to different mask is not doable.

Thanks,

wb