default or selected kernelversion does not have config value CONFIG_INFINIBAND_QIB_DCA.
Result is shown for kernelversion 6.9.9

QIB DCA support

configname: CONFIG_INFINIBAND_QIB_DCA

Linux Kernel Configuration
└─>Device Drivers
└─>InfiniBand support
└─>QIB DCA support
In linux kernel since version 3.10 (release Date: 2013-06-30)  
Setting this enables DCA support on some Intel chip sets
with the iba7322 HCA.