Some SLES11 SP versions are incorrect in SLES11SP2/SP3 drivers installation instructions in the README of OSA release SW1.2:
SUSE Linux Enterprise Server 11 SP2 Support is new.
Installation instructions for SLES11-SP1 (Linux kernel 2.6.32.12_0.7) should be SLES11-SP2 SUSE Linux Enterprise Server 11 SP3 Support.
Installation instructions for SLES11-SP1 (Linux kernel 3.0.76-0.11) should be SLES11-SP3.