nvmeadm format -l [controller_name]
For example:
nvmeadm format -l SUNW-NVME-1
SUNW-NVME-1 LBA Format: 1 Block Size: 512 Metadata Size: 0 LBA Format: 2 Block Size: 512 Metadata Size: 8 LBA Format: 3 Block Size: 512 Metadata Size: 16 LBA Format: 4 Block Size: 4096 Metadata Size: 0 LBA Format: 5 Block Size: 4096 Metadata Size: 8 LBA Format: 6 Block Size: 4096 Metadata Size: 64