Am using the most recent driver for the iSCSI adapters and they are fine, otherwise I wouldn't be able bind to the iSCSI targets on the SAN.
The part of the manual you posted basically applies when using iSCSI over the regular NICs. The scenario as described doesn't really apply in my case. E.g. IPMP is no option in my case since the NIC is integrated on the adapter and kinda behind the controller on the same adapter. Therefor the IP configured on the adapter will not show when using "ifconfig -a"
The only thing I consider possible is using the wrong symmetric option in the scsi_vhci.conf file.
In case you wonder why using this specific adapter. It wasn't my choice. The system is from one of our customers who asked us to help them out.