QAT 2.0 Ioctl failed

[triplewy]

I'm having difficulties building and installing the QAT20.L.1.2.30-00078.tar.gz driver on Linux 5.15.152. It fails with the following output:

There is 2 QAT acceleration device(s) in the system:
Ioctl failed
Get real id failed
Ioctl failed
Get real id failed

dmesg output:

[  880.959316] 4xxx 0000:6b:00.0: qat_dev0 started 9 acceleration engines
[  880.976497] QAT: Could not find a device on node 1
[  880.985626] QAT: Could not find a device on node 1
[  880.994713] QAT: Could not find a device on node 1
[  881.003399] QAT: Could not find a device on node 1
[  881.012108] QAT: Could not find a device on node 1
[  881.021370] QAT: Could not find a device on node 1
[  881.033230] QAT: Could not find a device on node 1
[  881.044407] QAT: Could not find a device on node 1
[  881.185312] 4xxx 0000:e8:00.0: qat_dev1 started 9 acceleration engines
[  881.208741] usdm_drv: Loading USDM Module 1.0.0 ...
[  881.215531] usdm_drv: IOCTLs: c0507100, c0507101, 7102, c0047104
[  881.226010] QAT: Invalid ioctl 1074553089
[  881.233019] QAT: Invalid ioctl 1074028817
[  881.306150] QAT: Invalid ioctl 1074028817

I had to follow the advice in #76 (comment) which allowed me to successfully build the qat_4xxx module but it is unable to run successfully. Any tips on solving this?

Confirmed QAT 2.0 hardware installed:

$ lspci -nn | egrep -e '8086:4940|8086:4942'
6b:00.0 Co-processor [0b40]: Intel Corporation Device [8086:4940] (rev 40)
e8:00.0 Co-processor [0b40]: Intel Corporation Device [8086:4940] (rev 40)

[venkatesh6911]

Hi @triplewy , what is the OS you are running ?

[triplewy]

@venkatesh6911 I am using Debian 10

[jdschuet]

Can you provide the output of:

cat /proc/cmdline

What configuration options were used to configure the QAT driver?