If I want to use hardware acceleration, and I don't want to turn off iommu of host, is there any other way

[yangni2017]

qzip version: QATzip-QATzip_1.1.2_release
card info: Intel Corporation C62x Chipset QuickAssist Technology
driver info:QAT.L.4.25.0-00001
cpu：Intel(R) Xeon(R) CPU E5-2650 v3 @ 2.30GHz

hi. I want to use the qzip hardware acceleration, after i install the driver, exec qzip and i get the error:
# qzip -O 7z CentOS-8-x86_64-1905-dvd1.iso -o result.7z
Error no hardware, switch to SW if permitted

driver install:
# export ICP_ROOT=/home/hcitos/qat_driver; ./configure --enable-icp-sriov=host ;make -j install

qzip install
# ./configure --with-ICP_ROOT=$ICP_ROOT ;make clean ; make ;make install

the dmesg get ther error:
# dmesg -T | grep PF
[Mon Jul 29 15:08:34 2024] c6xx 0000:0c:00.0: Cannot use PF with IOMMU enabled

after i disable iommu of host, and qzip can work well with using hardware acceleration. But i need to keep iommu on, Is there any other way to use hardware acceleration and not disable iommu .

[yangni2017]

i wan to know whether qzip can use vf to hardware acceleration? whan can i do to config it.

[XingHongChenIntel]

hello，yangni, it seems you are using the OOT driver of QAT, it require the IOMMU disable.
you could use the intree driver(qatlib) to solve this issue, QAT intree driver could use the VF of QAT HW.
please refer to document
https://intel.github.io/quickassist/qatlib/qatzip.html
https://intel.github.io/quickassist/qatlib/index.html
https://intel.github.io/quickassist/qatlib/install.html

[yangni2017]

QAT intree driver

hi，thank you very much for your help. but i install the qatlib follow the document,but my qat service can't start，and get the error:

Jul 30 15:34:37 TOS-10021 qat_init.sh[637454]: lspci: No PFs found, so assume qatlib is running on a VM
Jul 30 15:34:38 TOS-10021 qatmgr[638053]: No devices found
Jul 30 15:34:38 TOS-10021 qatmgr[638051]: No QAT device found

my card info as follow:

my card seems not in The support list is mentioned in the documentation:
https://github.com/intel/qatlib/blob/main/INSTALL
intel/qatlib#78

i can't get the pci info because my card is not 4xxx

So, have any other ways?

[XingHongChenIntel]

hello, accroding to document of the https://www.intel.com/content/www/us/en/content-details/780531/intel-quickassist-technology-software-for-linux-release-notes-customer-enabling-release.html, please refer to QATE-30497, it's the know issue, for cpm1.7, Huge pages are not supported on host when the iommu is on

[Yogaraj-Alamenda]

@yangni2017 do you have any follow up queries on this ?