IBM Power System 9009-42A, Руководство пользователя

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Table 4. PCIe slot locations and descriptions for system (continued)
Location
code
Description Processor
module
Adapter
size
Slot capabilities Slot availability
CAPI SR-IOV 32-bit
dynamic
direct
memory
access
(DMA) GB
I/O adapter
enlarged
capacity
enablemen
t order5
(9009-41A)
I/O adapter
enlarged
capacity
enablemen
t order
5(9009-42
A and
9223-42H)
9009-41A,
9009-42A,
and
9223-42H
(one
processor)
9009-42A
and
9223-42H
(two
processors)
P1-C81, 3 PCIe4 x8 Processor
module
SCM0
Full-height,
half-length
Yes Yes 2 2 4 Yes Yes
P1-C91 PCIe4 x16 Processor
module
SCM0
Full-height,
half-length
Yes Yes 2 1 1 Yes Yes
P1-C104 PCIe3 x8 PCIe3
switch,
S2P16
Full-height,
half-length
No Yes 2 6 9 Yes Yes
P1-C114 PCIe3 x8
(default
LAN slot)
PCIe3
switch,
S2P17
Full-height,
half-length
No Yes 2 8 11 Yes Yes
P1-C122, 4 PCIe3 x8
with x16
connector
PCIe3
switch,
S1P8
Full-height,
half-length
No Yes 2 4 7 Yes Yes
1High-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.
2Slots P1-C6 and P1-C12 have Gen3 x16 connectors, but will only function as Gen3 x8.
3Slots P1-C2 and P1-C8 have Gen4 x16 connectors, but will only function as Gen4 x8.
4Slot connected by PCIe3 switches.
5Enabling 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-C5, P1-C6, P1-C7, P1-C10, 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.
4 Power Systems: PCIe adapter placement for the 9009-41A, 9009-42A, or 9223-42H