MicroSemi Switchtec PCIe Switch Management Driver

modulename: switchtec.ko

configname: CONFIG_PCI_SW_SWITCHTEC

Linux Kernel Configuration
└─>Device Drivers
└─>PCI support
└─>PCI switch controller drivers
└─>MicroSemi Switchtec PCIe Switch Management Driver
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Enables support for the management interface for the MicroSemi
Switchtec series of PCIe switches. Supports userspace access
to submit MRPC commands to the switch via /dev/switchtecX
devices. See Documentation/driver-api/switchtec.rst for more
information.

source code:
depends
CONFIG_PCI

is depended by
CONFIG_NTB_SWITCHTEC