:orphan:

.. title:: CONFIG_PCIE_MSI_X

.. kconfig:: CONFIG_PCIE_MSI_X

CONFIG_PCIE_MSI_X
#################

*Enable MSI-X support*

Type: ``bool``

Help
====

.. code-block:: none

    If one or more device support MSI-X, you'll need to enable this.
    If a device exposes support for both MSI-X and MSI, MSI-X will be
    used and MSI disabled on that device. Enable PCIE_MSI_MULTI_VECTOR
    if you want to support multi-vector on MSI-X as well.

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

\ :kconfig:`PCIE_MSI <CONFIG_PCIE_MSI>` && \ :kconfig:`PCIE <CONFIG_PCIE>`

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

Defaults
========

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

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



At ``<Driver>/pcie/host/Kconfig:54``

Included via ``Kconfig:8`` → ``Kconfig.zephyr:42`` → ``<Driver>/Kconfig:34`` → ``<Driver>/pcie/Kconfig:3``

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

.. code-block:: kconfig

    config PCIE_MSI_X
    	bool "Enable MSI-X support"
    	depends on PCIE_MSI && PCIE
    	help
    	  If one or more device support MSI-X, you'll need to enable this.
    	  If a device exposes support for both MSI-X and MSI, MSI-X will be
    	  used and MSI disabled on that device. Enable PCIE_MSI_MULTI_VECTOR
    	  if you want to support multi-vector on MSI-X as well.

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