New ContributorStratix 10 MX FPGA dev. kit fails DMA link test under CentOS 7.0.1406 with kernel 3.10.0-123.el7.x86_64
Two questions
1. Though /dev/intel_fpga_pcie_drv is created, why link test always fails ? kernel log says module verification failed.
2. Why there is only one related log in /var/log/kern.log even though we tried many times and failed many times ?
[fpga@localhost example]$ ./intel_fpga_pcie_link_test
*********************************************************
Intel FPGA PCIe Link Test
Version 2.0
0: Automatically select a device
1: Manually select a device
*********************************************************
> 0
Invalid BDF or BAR!
could not open character device; ensure that Intel FPGA kernel driver has been loaded
[fpga@localhost example]$ ./intel_fpga_pcie_link_test
*********************************************************
Intel FPGA PCIe Link Test
Version 2.0
0: Automatically select a device
1: Manually select a device
*********************************************************
> 1
Enter bus number, in hex:
> 2
Enter device number, in hex:
> 0
Enter function number, in hex:
> 0
BDF is 0x200
B:D.F, in hex, is 2:0.0
Enter BAR number (-1 for none, 2 for HBM2 and 4 for DDR4)) :
> 4
Invalid BDF or BAR!
could not open character device; ensure that Intel FPGA kernel driver has been loaded
[fpga@localhost example]$ lsmod | grep intel_fpga
intel_fpga_pcie_drv 31269 0
-----------------------------
Nov 12 13:39:18 localhost kernel: [ 1222.372651] intel_fpga_pcie_drv: module verification failed: signature and/or required key missing - tainting kernel
