Flow Bifurcation of splitting the traffic between kernel space and user space (DPDK)

[Ramakrishnan G <gramakr@gmail.com>]

[-- Attachment #1: Type: text/plain, Size: 1718 bytes --]

Dear Aaron and DPDK Dev Team,

Thanks for the Article talks about the Traffic Flow bifurcation
between kernel space and user space (DPDK) (3. Flow Bifurcation How-to
Guide — Data Plane Development Kit 16.07.2 documentation (dpdk.org)
<https://doc.dpdk.org/guides-16.07/howto/flow_bifurcation.html>)

We are trying to test this functionality for sending only the SSH (port 22)
traffic to kernel and all the other traffic to be transferred to the user
space (DPDK) by assigning same IP for both the virtual interface (one
virtual interface is owned by the DPDK and another virtual interface is
owned by the DPDK )

Using the igb driver with max_vfs setting, we were able to create the
virtual link and map it to user space (DPDK) and another link into kernel
space. we assigned different IP addresses and we were able to reach from
other host.

But when we are trying to configure the flow-type for port 22

Ubuntu# ethtool -K eth9 ntuple on
Ubuntu## ethtool -N eth9 flow-type ip4 dst-port 22 action 0
rmgr: Cannot insert RX class rule: Invalid argument
Ubuntu## ethtool -N eth9 flow-type ip4 dst-port 22 action 1
rmgr: Cannot insert RX class rule: Invalid argument
Ubuntu## ethtool -N eth9 flow-type ip4 dst-port 22 action 2
rmgr: Cannot insert RX class rule: Invalid argument

We tried to apply the patch that was given in the following link,
(
https://patchwork.ozlabs.org/project/intel-wired-lan/patch/1451456399-13353-1-git-send-email-gangfeng.huang@ni.com/#1236040
)

But we couldn't patch any of the latest igb driver and we tried to patch
with the 2016 igb driver.

please help us in sharing the info where can we apply the patch for igb
driver in Ubuntu.

Thanks,
Ram

[-- Attachment #2: Type: text/html, Size: 2406 bytes --]