:orphan:

.. title:: PCIE_MSI_X

.. option:: CONFIG_PCIE_MSI_X

*Enable MSI-X support*

Type: ``bool``

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.

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

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

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

Defaults
========

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

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

.. highlight:: kconfig

At ``drivers/pcie/host/Kconfig:33``

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 → Enable support for PCI(e) MSI

.. parsed-literal::

    config PCIE_MSI_X
    	bool "Enable MSI-X support"
    	depends on \ :option:`PCIE_MSI <CONFIG_PCIE_MSI>` && \ :option:`PCIE <CONFIG_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.)*