Working with PCIe functions

Starting with processor type 2827, Peripheral Component Interconnect Express (PCIe) adapters attached to a system can provide the operating system with a variety of so-called PCIe functions to be exploited by entitled logical partitions (LPARs).

HCD supports the following types of PCIe functions:

• Remote Direct Memory Access (RDMA) over Converged Ethernet (RoCE). PCIe functions of type RoCE may be assigned to external physical networks by specifying corresponding PNET IDs.
• zEDC-Express. For PCIe functions of type zEDC-Express, a virtual function number between 1 and 15 must be specified.

HCD provides dialogs to define, change, delete, and view PCIe functions, and to control, which LPARs have access to which PCIe functions.