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JYu3
Beginner
830 Views

Why is the PCIE of XL710-BM1 link to PCIE GEN2?

我烧写了cfgid7.2对应的固件,为什么PCIE训练速度是​5GT/S?

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24 Replies
Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

Thank you for posting in Intel Ethernet Communities. 

 

I am sorry, we can only support you in English language and we are just using our tool to translate and we understand that your concern is about PCI training speed.

 

For us to further check this issue, please provide the following details.

 

  1. Are you using an on-board NIC?
  2. What is the model of your board and system?

 

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

JYu3
Beginner
266 Views

xl710-2.5g.pngthanks!

1.NO,used for pcie card;

2.The model is PCIE Add-in card and the system is linux.

 

When I changed the firmware to support only 8GT/s, its link capability only supported 2.5GT/s. I only changed the register GLPCI_LINKCAP. I cann't understand.

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

Thank you for providing the information that I requested.

I need to further check this, I will get back you as soon as I have an update.

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

 

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

We need to clarify the following information that you provided. Please verify the following information.

 

1) What is the exact firmware version?

2) Where did you download the firmware? Please provide the link.

3) How did you manage to change the link capability of register GLPCI_LINKCAP? Is this the register 0x00C8 - 00C9 that you changed? 

3) Can you clarify the CFGID 7.2 that you wrote in Chinese?

 

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

JYu3
Beginner
266 Views

1) XL710_6p80_SFI_NCSI_CFGID7p2_Quad;

2) https://downloadcenter.intel.com/zh-cn/download/25791/-710-Nvm-linux-?product=75021

3) I changed the register 0x00EB - 00EC .

 

 

 

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

Thank you for the quick response. Let me further check these details and get back to you.  

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

Let me gather more information about the issue. Please provide the following details.

 

  1. Have you tried to install the X710 adapter on another system? Is the link capacity remains 2.5 GT/s?
  2. Please provide the brand and model of the system where the X710 was installed.
  3. Please take a photo of the card focusing on the markings on both sides of the card.

 

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

 

JYu3
Beginner
266 Views

Thanks。I've tried it on other hosts,like intel CPU, and it links to 8GT/S。It links to 5GT only under PLX8748。But other boards can link to 8G under this 8748。

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

 

Thank you for the update, however we need to gather the rest of the details below.

 

  1. Please provide the brand and model of the system where the X710 was installed.
  2. Please take a photo of the card focusing on the markings on both sides of the card.

 

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

JYu3
Beginner
266 Views

1. X710 is installed under the CPU of X86 or ARM architecture and is linux OS。

 

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

 

Thank you for the update. Can you tell us the brand and model of the system?

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

 

JYu3
Beginner
266 Views

The main control is intel I7 6880EQ.It is the PCIE link speed problem between 710 and PLX8748.The 710 can only be linked to 5g at 8748.

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

That is what we are trying to figure out. We want to know the model of the system for us to check the specification of the system.

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

 

JYu3
Beginner
266 Views

Do you have any suggestions about 710 only link to 5G at 8748?

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

There is a lot of possible causes and I need to further check everything before I provide a recommendations. The issue that we are facing is that since it is embedded in a system, the OEM or system manufacturer may have altered the specification of the NIC.

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

 

JYu3
Beginner
266 Views

Thanks。​It can trained to 8G by linking disable and enable at 8748 downstream, but it was unstable. And it is useless after retrain, it's still 5G.

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

I understand. However for further assistance and troubleshooting, it is best if you can contact the manufacturer of the system or the board. They may have altered this NIC and those changes are unknown to us.

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

Under Contract to Intel Corporation

 

JYu3
Beginner
266 Views

We made this NIC, a XL710-BM1 chip from Intel.

Michael_L_Intel2
Moderator
266 Views

Hello JYu3,

 

Wait, let me further check. Did you purchased this system or are you designing this particular system and you need assistance on how to implement the NIC? Please confirm.

 

If you have questions, please let us know.

 

Best regards,

Michael L.

Intel Customer Support

A Contingent Worker at Intel

JYu3
Beginner
146 Views

We are designing this PCIE add-in card based on xl710。This card  can only lin to 5G under PLX8748.But other CARDS can link to 8G under the 8748.

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