Forum Discussion
SengKok_L_Intel
Regular Contributor
6 years agoHi,
Could you please read the device control register by using command below?
sudo setpci -d 8086:094C 0x78.L
This is to check if bit 7:5 is set to 001b for 256 bytes max payload size? If not, please configure the bit 7:5 as 001b, and then run the test again.
For example:
sudo setpci -d 8086:094C 0x78.L=0009203e (please change bit 7:5 as 001, the rest remain the same as what you read out)
If above do not help, please also read the uncorrectable & correctable status register to further understanding the problem.
sudo setpci -d 8086:094C 0x110.L
sudo setpci -d 8086:094C 0x104.L
Regards -SK