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nskim's avatar
nskim
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5 months ago

Agilex 7 R-Tile RBES FPGA – CXL Device Enumeration Failure with CXL IP Design Example

1. What is the failure symptom? Please elaborate on the failure symptoms in detail. The CXL device fails to enumerate when using the CXL Type-3 IP design example. •    lspci -vvv | grep 0ddb does n...
Programmable Logic Device
quality|reliability
JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
5 months ago

Hi,

 

May I know which board OPN are you using? Can you also share the board serial number?

 

1. Have you check what is the status of the CXL Phy Link on the FPGA? 

2. Has your server been tested to be working with CXL card before? 

3. Can you share with me your server information such server model, CPU use and RAM?

 

Thanks

nskim's avatar
nskim
Icon for New Contributor rankNew Contributor
4 months ago

Hi John,

The board OPN is DK-DEV-AGI027RBES (Power Solution 2), and the serial number is AGIPCIe8020349.

Regarding your questions:

1. CXL PHY link status on the FPGA

Yes, we have checked the CXL PHY link status on the FPGA, and it was functional.

2. Previous validation of the server with a CXL card

Yes, this server has been tested with the same CXL card before and was working correctly.

3. Server information (model, CPU, and RAM)

We tested on both SPR and EMR platforms. For the EMR platform, we are using a Supermicro SYS-221H-TNR with two Intel® Xeon® Gold 6538Y+ CPUs and four Samsung M321R8GA0BB0-CQKRH DDR5 DIMMs.