HP-UX LAN Administrator's Guide (July 2003)

DRAFT COPY
xiv
• Enhancements to CKO (Check-sum Offload) interfaces between transport and DLPI.
This change makes the CKO interfaces more general with respect to the types of
checksum offload hardware that HP will support, and adds sufficient flexibility to the
interface that supports checksum offload for future transport protocols. This change
incorporates the DLPI OOP header to carry the type of checksum offload and the offloaded
checksum itself.
The transport internal kernel header file, net/cko.h has been modified to support this
enhancement. Kernel IP Stream modules that previously used options for fastpath
negotiation features or looked into network data packets in previous versions must make
changes and recompile for HP-UX 11i v2.