does ixgbe driver support any ioctl for direct buffer data transfer to NIC

[AslamBablu]

Hi,

I am using intel X540 T2 ethernet adapter and trying to measure maximum throughput. A linux PC is used where X540 has been plugged into a PCIe slot.

I would not like to use TCP/UDP stack and instead do a direct Layer2 transfer.

Does ixgbe driver support any api where we can directly transfer data from a user buffer to NIC ?

[Caguicla_Intel]

Hello AslamBablu,

Thank you for posting in Intel Ethernet Communities. 

Please provide following information that would help in checking your query. 

1. Exact Operating System used

2. Driver used and where it was downloaded from ?

Looking forward to your reply. 

We will follow up after 3 business days in case we don't hear from you.

Best regards,

Crisselle C.

Intel® Customer Support

[AslamBablu]

Here are the details as requested,

1. Operating system details using $hostnamecl
2.          Static hostname: xxxxxxxx
            Icon name: computer-desktop
            Chassis: desktop
            Machine ID: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
            Boot ID: xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
            Operating System: Ubuntu 18.04.6 LTS
            Kernel: Linux 5.4.0-107-generic
            Architecture: x86-64

       2. driver details using $ethtool -i enp1s0f0

                   driver: ixgbe

                   version: 5.1.0-k

                   firmware-version: 0x80000389

                   expansion-rom-version:

                   bus-info: 0000:01:00.0

                   supports-statistics: yes

                   supports-test: yes

                   supports-eeprom-access: yes

                   supports-register-dump: yes

                   supports-priv-flags: yes

I am using intel X540 ethernet adapter and it has been plugged into a linux PC on PCIe slot.

The ixgbe driver was downloaded from intel website.

[Caguicla_Intel]

Hello AslamBablu,

Thank you for the detailed and prompt reply. 

Please allow us to further check your query. Rest assured that we will give you an update as soon as possible but no later than 2-3 business days. 

Hoping for your kind patience. 

Best regards,

Crisselle C.

Intel® Customer Support

[Caguicla_Intel]

Hello AslamBablu,

Apologies for the delay on this matter. 

Please be informed that we are still checking your query with our engineers. Rest assured that we will give you an update as soon as we heard form them but no later than 2-3 business days. 

Thank you for your kind understanding. 

Best regards,

Crisselle C.

Intel® Customer Support

[Caguicla_Intel]

Hello AslamBablu,

Good day!

We sincerely apologize for the delay on this matter as we are thoroughly checking on this. Please give us more time to look into this. Rest assured that we will give you an update as soon as there is any findings but not later than 3 business days.

Best regards,

Crisselle C.

Intel® Customer Support

[Caguicla_Intel]

Hello Hello AslamBablu,

Thank you for the patience on this matter. 

Our engineers have suggested to check your query with Data Plane Development Kit (DPDK) team. The current ixgbe driver does not have the capability of what you are looking for therefore we would suggest checking this with DPDK regarding this query. 

See the following for access to Intel Premier Support. Click the "Access and Log In" to contact the DPDK support https://www.intel.com/content/www/us/en/design/support/ips/training/welcome.html 

Feel free to let us know if you have submitted query to DPDK so we can send a heads up as well.

Awaiting to hear from you. 

Should there be no response from you, I’ll make sure to reach out after 3 business days.

Best regards,

Crisselle C.

Intel Customer Support

[AslamBablu]

Thankyou for confirming the capability of ixgbe driver.
As suggested I will explore on DPDK.

[Caguicla_Intel]

Hello AslamBablu,

Thank you for the update. 

We will take note of it and advise our engineers. Please be informed as well that we will now close this request. Just feel free to post a new question if you may have any other inquiry in the future as this thread will no longer be monitored.

Thank you for choosing Intel and stay safe!

Best regards,

Crisselle C.

Intel Customer Support