qat_init.sh(8)

qat_init.sh 💖

okay bestie, so this is the manual page for qat_init.sh, section 8 of the manuals (that's the sysadmin/daemon-ish zone, iykyk). pull up a chair, we're gonna get your QAT devices ✨ready✨.

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🌸 NAME 🌸

qat_init.sh — QAT resource initializer

also like. literally just qat_init.sh. that's the name. that's it. slay.

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🦋 SYNOPSIS 🦋

qat_init.sh

no args, no flags, no drama. she just runs. 💅

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🎀 DESCRIPTION 🎀

qat_init.sh initializes the Intel© Quick Assist Technology (Intel© QAT) devices, getting them all set up and pretty for use by the user space library, a.k.a. qatlib. it's giving backstage prep before the main character goes on stage. 💖

so when you run this on a host system where the physical function (PF) QAT devices are visible and already bound to the QAT device driver, the qat_init.sh script will enable sriov on each of the PF devices. and enabling sriov on those PFs is what unlocks the virtual function (VF) devices. they're born. iconic. 🌈

then, for each of the QAT VF devices, qat_init.sh binds the device to the vfio-pci device driver, which makes it available for applications that use the qatlib user space library. no cap, that's the whole glow-up. 🔥

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✨ ENVIRONMENT VARIABLES ✨

• LKCF_LIST — if this one's set, it gives you a list of VF devices that should be used for accelerating operations from the Linux crypto framework instead of being available for user space applications. so like, pick a lane, bestie — crypto framework or user space apps. 🫶

example:

LKCF_LIST="0000:3d:01.0 0000:3f:01.0 0000:da:01.0"

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💜 SEE ALSO 💜

• qatmgr(8)

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👑 AUTHOR 👑

Conor McLoughlin <conor.mcloughlin@intel.com>

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ngl this page is short and sweet and honestly? ate. go enable those VFs. 🧚

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and that's the whole thing, bestie — this page lives in the qat_init.sh manual, section 8, dated 30 Oct 2019. mwah. 💖✨