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CONFIG_8139TOO_PIO: Use PIO instead of MMIO

General informations

The Linux kernel configuration item CONFIG_8139TOO_PIO has multiple definitions:

Use PIO instead of MMIO found in drivers/net/Kconfig

The configuration item CONFIG_8139TOO_PIO:

Help text

This instructs the driver to use programmed I/O ports (PIO) instead of PCI shared memory (MMIO). This can possibly solve some problems in case your mainboard has memory consistency issues. If unsure, say N.

Use PIO instead of MMIO found in drivers/net/ethernet/realtek/Kconfig

The configuration item CONFIG_8139TOO_PIO:

Help text

This instructs the driver to use programmed I/O ports (PIO) instead of PCI shared memory (MMIO). This can possibly solve some problems in case your mainboard has memory consistency issues. If unsure, say N.

Hardware

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