X-Gene v1 PCIe MSI feature

modulename: pci-xgene-msi.ko

configname: CONFIG_PCI_XGENE_MSI

Linux Kernel Configuration
└─>Device Drivers
└─>PCI support
└─>PCI controller drivers
└─>X-Gene v1 PCIe MSI feature
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Say Y here if you want PCIe MSI support for the APM X-Gene v1 SoC.
This MSI driver supports 5 PCIe ports on the APM X-Gene v1 SoC.

source code: