Adapter Placement Rules And Slot Priorities For The System - IBM 9223-22H Manual

Table 7. Slot locations and descriptions for the 9008-22L, 9009-22A, or 9223-22H system (continued)
Location code Description
1 High-performance slot that is directly connected to the processor module. The connectors in these slots are differently colored than the slots from the PCIe3
switches.
2 Slots P1-C6 and P1-C12 have Gen3 x16 connectors, but will only function as Gen3 x8.
3 Slots P1-C2 and P1-C8 have Gen4 x16 connectors, but will only function as Gen4 x8.
4 Slot connected by PCIe3 switches.
5 If FC EJ05 is installed in this slot, the external SAS port is not allowed in the system.
6 Enabling the I/O adapter enlarged capacity option will only affect Linux partitions. If your system doesn't have Linux partitions, the I/O Adapter Enlarged
Capacity setting should be disabled.
Notes:
• The peak bandwidths supported by the x16 slots are 32 gigabytes per second (GBps) in simplex mode and 64 GBps in duplex mode.
• The peak bandwidths supported by P1-C6, P1-C7, P1-C11, and P1-C12 x8 slots are 8 GBps in simplex mode and 16 Gbps in duplex mode.
• The peak bandwidths supported by P1-C2 and P1-C8 x8 slots are 16 GBps in simplex mode and 32 GBps in duplex mode.
• All slots support enhanced error handling (EEH).
• All PCIe slots are hot swappable and support concurrent maintenance.
Firmware slot capabilities
System PCIe slots are allocated direct memory access (DMA) space using the following algorithm:
• All slots are allocated a 2 GB default DMA window.
• All I/O adapter slots (except the embedded USB) are allocated Dynamic DMA Window (DDW) capability
based on installed platform memory. DDW capability is calculated assuming 4 K I/O mappings:
– For systems with less than 64 GB of memory, slots are allocated 16 GB of DDW capability.
– For systems with at least 64 GB of memory, but less than 128 GB of memory, slots are allocated 32
GB of DDW capability.
– For systems with 128 GB or more of memory, slots are allocated 64 GB of DDW capability.
– Slots can be enabled with Huge Dynamic DMA Window capability (HDDW) using the I/O Adapter
Enlarged Capacity setting in the Advanced System Management Interface (ASMI).
– HDDW enabled slots are allocated enough DDW capability to map all of installed platform memory
using 64 K I/O mappings.
– Minimum DMA window size for HDDW enabled slots is 32 GB.
– Slots that are HDDW enabled are allocated the larger of the calculated DDW capability and HDDW
capability.
Adapter placement rules and slot priorities for the 5105-22E,
9008-22L, 9009-22A, 9009-22G, 9223-22H, or 9223-22S
Find information about the placement rules and slot priorities for the adapters that are supported for the
5105-22E, 9008-22L, 9009-22A, 9009-22G, 9223-22H, or 9223-22S system.
Adapter placement rules for 5105-22E, 9009-22G, or 9223-22S
Use this information while selecting slots for installing adapters in the 5105-22E, 9009-22G, or 9223-22S
system.
1. The slot P1-C11 must be used to install the local area network (LAN) adapter feature codes (FCs).
Any other adapter feature is not supported in this slot.
6 Power Systems: Adapter placement for the 5105-22E, 9008-22L, 9009-22A, 9009-22G, 9223-22H, or
9223-22S
Processor Adapter size
module
Slot capabilities
CAPI SR-IOV 32-bit I/O adapter
dynamic direct enlarged
memory capacity
access (DMA) enablement
order 6
GB
Slot
availability