CONFIG_PPC_VAS: IBM Virtual Accelerator Switchboard (VAS)

General informations

The Linux kernel configuration item CONFIG_PPC_VAS has multiple definitions:

IBM Virtual Accelerator Switchboard (VAS) found in arch/powerpc/platforms/book3s/Kconfig

The configuration item CONFIG_PPC_VAS:

• prompt: IBM Virtual Accelerator Switchboard (VAS)
• type: bool
• depends on: ( CONFIG_PPC_POWERNV || CONFIG_PPC_PSERIES ) && CONFIG_PPC_64K_PAGES
• defined in arch/powerpc/platforms/book3s/Kconfig
• found in Linux kernels: 5.14–5.19, 6.0–6.11, 6.12-rc+HEAD

Help text

This enables support for IBM Virtual Accelerator Switchboard (VAS).

VAS devices are found in POWER9-based and later systems, they provide access to accelerator coprocessors such as NX-GZIP and NX-842. This config allows the kernel to use NX-842 accelerators, and user-mode APIs for the NX-GZIP accelerator on POWER9 PowerNV and POWER10 PowerVM platforms.

If unsure, say "N".

IBM Virtual Accelerator Switchboard (VAS) found in arch/powerpc/platforms/powernv/Kconfig

The configuration item CONFIG_PPC_VAS:

• prompt: IBM Virtual Accelerator Switchboard (VAS)
• type: bool
• depends on: CONFIG_PPC_POWERNV && CONFIG_PPC_64K_PAGES
• defined in arch/powerpc/platforms/powernv/Kconfig
• found in Linux kernels: 4.14–4.20, 5.0–5.13

Help text

This enables support for IBM Virtual Accelerator Switchboard (VAS).

VAS allows accelerators in co-processors like NX-GZIP and NX-842 to be accessible to kernel subsystems and user processes.

VAS adapters are found in POWER9 based systems.

If unsure, say N.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb of "" "" "ibm,vas" : CONFIG_PPC_POWERNV CONFIG_PPC_VAS : arch/powerpc/platforms/powernv/vas.c # in 4.14–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD
• lkddb platform "vas" : CONFIG_PPC_POWERNV CONFIG_PPC_VAS : arch/powerpc/platforms/powernv/vas.c # in 4.14–4.20, 5.0–5.19, 6.0–6.11, 6.12-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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