I have two 3ware 9650SE 8 port cards installed and working just fine as can be seen from the attached.
Unfortunately I get the same issue as "kx14" when upgrading to 6.5.
I believe the "vmkapi_v2_0_0_0_xxxx_shim" located in "/usr/lib/vmware/vmkmod/" get updated in the upgrade.
I am wondering and trying to build up some courage to perhaps save a copy of them, and then install them after the upgrade ...