Building a kernel with the CTCM device driver

7.1 LPAR mode z/VM guest

Control the build options for the CTCM device driver through the kernel configuration menu.

Kernel builders: This information is intended for those who want to build their own kernel. Be aware that both compiling your own kernel or recompiling an existing distribution usually means that you have to maintain your kernel yourself.

You must select the kernel configuration option CONFIG_CTCM to use CTCM connections (see Figure 1).

Figure 1. CTCM kernel configuration menu option

 Device Drivers --->
    ...
     Network device support --->           (common code option CONFIG_NETDEVICES)
       ...
       S/390 network device drivers (depends on NETDEVICES && S390) --->
          ...
          CTC and MPC SNA device support                      (CONFIG_CTCM)

The CTCM device driver can be compiled into the kernel or as a separate module, ctcm.