This article outlines the download pax needed for IPC FMID CAVQF15
Z/OS
This can be found in the CA IPC for Z/OS 15.1 0000 for SMP/E download in the Datacom/DB MVS 15.1 product download page . For version 15.1 this can be found here
The complete FMID list for Datacom related products is found here