This driver enhancement is new in the Developer 1/08 release.
The Broadcom NetXtreme (bnx) II Ethernet driver is converted to GLDv3. This conversion includes some features in GLDv3 that are useful for systems based on bnx(7d) such as full support for VLANs and 802.3 link aggregation. This is also useful for additional stack features such as IP instances.
For more information, see the bnx(7D) man page.