I would like to add to this discussion in that I DID get my 3ware 9650se-4lpml to work in ESXi 6.0.
I followed the instructions in this thread install from the command line: Get the 3ware 9650SE working with ESXi 5.x | jermsmit.com - Jermal Smith
I used these 2 driver files:
aacraid-1.2.1.40709-2422670.zip - uploaded from the zip for install: vmware-esxi-drivers-scsi-aacraid-600.6.2.1.40709.-1.0.6.2159203.x86_64.vib
esxi5u1_driver_LSI_3ware_96xx,zip - uploaded: scsi-3w-9xxx-2.27.08.036-1OEM.500.0.0.472560.x86_64.vib
After installing the drivers and rebooting, the ESX host recognized the raid card and I was able to create datastores on both a Mirror Raid and a Single Drive connected to the card. ESX does not seem to notice when pulling a drive from the Mirror array though.
If anyone figures out how to monitor the raid status, that would be awesome.