We want an Ethernet card that supports DMA access to network data

[wshao7]

The requirements are as follows:           

1. DMA access mode needs to be supported          

2. We need to have SDK cases for DMA access for secondary development           

3. Gigabit network card or faster optical network           ​           

Thanks.

[Caguicla_Intel]

Hello wshao7,

Thank you for posting in Intel Ethernet Communities. 

Pleas allow us to check on your query. We will get back to you to provide an update within 1-3 business days.

Hoping for your patience.

Best regards,

Crisselle C

Intel Customer Support

A Contingent Worker at Intel

[wshao7]

OK,thks ,Looking forward to your reply

[Caguicla_Intel]

Hello wshao7,

Thank you for the patience on this matter.

Please visit the link below and confirm if this is what you are looking for.

Direct Memory Access (DMA) Coalescing

https://www.intel.com/content/www/us/en/support/articles/000007456/network-and-io/ethernet-products.html

Intel® I350 Ethernet Controller and DMA Coalescing

https://www.intel.com/content/dam/support/us/en/documents/network/adapter/pro100/sb/466827_intel_r__dma_coalescing_white_paper_v003.pdf

Hoping to hear from you.

Best regards,

Crisselle C

Intel Customer Support

A Contingent Worker at Intel

[Caguicla_Intel]

Hello wshao7,

Good day!

We'd like to check if you were able to visit the provided links above. Please let us know if it was helpful on your query.

Looking forward to your reply.

Best regards,

Crisselle C

Intel Customer Support

A Contingent Worker at Intel

[wshao7]

Hello Crisselle C,

I've looked at the link, but it doesn't solve my problem.Because I am a programmer, what I need is SDK code to access the network data on the network card.Many network CARDS on the market now integrate DMA into their drivers, so I may not see the code interface for secondary development.Thanks for following me.

thks.

wshao7

[Mike_Intel]

Hello wshao7,

For us to better understand the issue, can you provide the following details?

1. Why do you need the information that you are asking?
2. Are you designing a system, a software or a driver?
3. How would you implement your project?
4. What is the exact model of the Ethernet network card that you are working on right now?

If you have questions, please let us know.

Best regards,

Michael L.

Intel Customer Support Technicians

A Contingent Worker at Intel

[wshao7]

Hello michael L.

As for the application of the scene, our lower computer now transmits pixel data upward by 4 images per second (it will upgrade to 30 frames of fiber optic later). One image is 18MB, which has adopted the method of giant frames. A packet is 9K in size.UDP receiving is adopted, and CPU displays video pictures, resulting in packet loss. Therefore, I want to use DMA to read the data transferred from the lower machine directly from the network card, so as to bypass the CPU, making higher efficiency and solving the packet loss problem.Similar to the solution on the industrial camera

You can check out my question on the CSDN forum https://bbs.csdn.net/topics/395173750

[Mike_Intel]

Hello wshao7,

Thank you for the prompt reply. However, we need to further understand the issue and your project. So please clarify the following details.

1. Are you designing a system, a software or a driver?
2. How would you implement your project?
3. What is the exact model of the Ethernet network card that you are working on right now?

If you have questions, please let us know.

Best regards,

Michael L.

Intel Customer Support Technicians

A Contingent Worker at Intel

[wshao7]

Hello Michael L

1.Yes ,I am designing a software.

2.My project ,I have reply  to you above

3.As the scene of the software that i designed,I need the vaccine to transmit 512MB of video data through your network card, sometimes packet loss occurs, we need to solve the packet loss problem through DMA.

wangshaosun

[Mike_Intel]

Hello wshao7,

Thank you for the confirmation. I need to further check this issue. Please give us 3 to 4 business days to provide an update on this.  

If you have questions, please let us know.

Best regards,

Michael L.

Intel Customer Support Technicians

A Contingent Worker at Intel

[Caguicla_Intel]

Hello wangshaosun,

Thank you for the patience on this matter.

We would suggest to look into Data Plane Development Kit (DPDK) for your implementation. Please visit this link for more details.

https://software.intel.com/en-us/networking/dpdk.

Let us know if you have additional questions and clarifications on this matter.

Looking forward to your reply.

Best regards,

Crisselle C

Intel Customer Support

A Contingent Worker at Intel

[Caguicla_Intel]

Hello wangshaosun,

Good day!

We'd like to check if you have any other assistance needed from Intel Ethernet team. In case you do, please let us know and we will be glad to be of help.

Awaiting to your response.

Best regards,

Crisselle C

Intel Customer Support

A Contingent Worker at Intel

[wshao7]

hello,

I've visited this website https://software.intel.com/en-us/networking/dpdk , but I couldn't download the files in it two days ago. Do I need a VPN, because I'm in the network environment of Shanghai, China. Well, this interface is a little complicated technically. I need some time to study it

thks

wangshaosun

[Caguicla_Intel]

Hello wangshaosun,

Thank you for the reply.

Is there any error message you encountered while downloading the files? 

We understand that you need some time to study it and in case you need any other assistance form Intel Ethernet team, please do not hesitate to let us know.

Looking forward to your response.

Best regards,

Crisselle C

Intel Customer Support

A Contingent Worker at Intel

[Caguicla_Intel]

Hello wangshaosun,

Good day!

We'd like to check if you were now able to download the files. Please let us know if you have additional questions and clarifications on this matter.

Awaiting to your reply.

Best regards,

Crisselle C

Intel Customer Support

A Contingent Worker at Intel

[CarlosAubr_S_Intel]

Hi wangshaosun,

Good day and hope all is well with you. 

Please be informed that we will now proceed in closing this request since we haven't received any response from our previous follow ups. If you have any other concerns or assistance needed in the future, feel free to post a new question

Sincerely,

Carlos S.

Intel Customer Support

A Contingent Worker at Intel