I am able to enable SR-IOV for it but it doesn't show up in the PCI list unlike the x553 NICs. I tried to compile drivers but ran into a compilation error that got me stuck. But I think the drivers should already be there.It's a platform originally from 2017. It supports the most important ciphers/algorithms from that time and is really powerful if it matches your use case, but naturally lacks some modern features.
I would expect the drivers to be stable at this point so I don't see that as much of an issue. Not sure why you're having problems in Proxmox. Perhaps it doesn't include the QAT driver?
Bash:
root@pve-gateway:/usr/local# lsmod | grep qat
qat_c3xxxvf 12288 0
qat_c3xxx 12288 0
intel_qat 425984 2 qat_c3xxxvf,qat_c3xxx
Bash:
root@pve-gateway:/usr/local# dmesg | grep qat
[ 12.702202] c3xxx 0000:01:00.0: qat_dev0 started 6 acceleration engines
[ 74.653342] c3xxx 0000:01:00.0: qat_dev0 stopped 6 acceleration engines
[ 74.655143] c3xxx 0000:01:00.0: Resetting device qat_dev0
[ 74.884148] c3xxx 0000:01:00.0: qat_dev0 started 6 acceleration engines
Bash:
root@pve-gateway:/usr/local# grep qat /proc/crypto
driver : qat_deflate
module : intel_qat
driver : qat-dh
module : intel_qat
driver : qat-rsa
module : intel_qat
driver : qat_aes_cbc_hmac_sha512
module : intel_qat
driver : qat_aes_cbc_hmac_sha256
module : intel_qat
driver : qat_aes_cbc_hmac_sha1
module : intel_qat
driver : qat_aes_xts
module : intel_qat
driver : qat_aes_ctr
module : intel_qat
driver : qat_aes_cbc
module : intel_qat