:orphan:

.. title:: PCIE_MSI

.. option:: CONFIG_PCIE_MSI

*Enable support for PCI(e) MSI*

Type: ``bool``

Help
====

Use Message-Signaled Interrupts where possible. With this option
enabled, PCI(e) devices which support MSI will be configured (at
runtime) to use them. This is typically required for PCIe devices
to generate interrupts at all.

Direct dependencies
===================

\ :option:`PCIE <CONFIG_PCIE>`

*(Includes any dependencies from ifs and menus.)*

Defaults
========

No defaults. Implicitly defaults to ``n``.

Symbols that select this symbol
===============================

- \ :option:`SOC_APOLLO_LAKE <CONFIG_SOC_APOLLO_LAKE>`
- \ :option:`SOC_ELKHART_LAKE <CONFIG_SOC_ELKHART_LAKE>`

Kconfig definition
==================

.. highlight:: kconfig

At ``drivers/pcie/host/Kconfig:13``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:32`` → ``drivers/Kconfig:32`` → ``drivers/pcie/Kconfig:3``

Menu path: (Top) → Device Drivers → Enable new PCI/PCIe Root Complex support

.. parsed-literal::

    config PCIE_MSI
    	bool "Enable support for PCI(e) MSI"
    	depends on \ :option:`PCIE <CONFIG_PCIE>`
    	help
    	  Use Message-Signaled Interrupts where possible. With this option
    	  enabled, PCI(e) devices which support MSI will be configured (at
    	  runtime) to use them. This is typically required for PCIe devices
    	  to generate interrupts at all.

*(The 'depends on' condition includes propagated dependencies from ifs and menus.)*