Support for IBM CAPI Flash

modulename: cxlflash.ko

configname: CONFIG_CXLFLASH

Linux Kernel Configuration
└─>Device Drivers
└─>SCSI device support
└─>SCSI low-level drivers
└─>PCI support
└─>Support for IBM CAPI Flash
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Allows CAPI Accelerated IO to Flash
If unsure, say N.

source code:
drivers/scsi/cxlflash/
selects
CONFIG_IRQ_POLL