NVMe multipath support

configname: CONFIG_NVME_MULTIPATH

Linux Kernel Configuration
└─>Device Drivers
└─>NVME Support
└─>NVMe multipath support
In linux kernel since version 4.2 (release Date: 2015-08-30)  
This option enables support for multipath access to NVMe
subsystems. If this option is enabled only a single
/dev/nvmeXnY device will show up for each NVMe namespace,
even if it is accessible through multiple controllers.