Pci/pci-x/pcie iobp, Pcie mps optimization, Pci/pci-x/pcie i/o rope groups – HP INTEGRITY RX3600 User Manual
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Table 1-1 PCI/PCI-X I/O Rope Groups (continued)
Hot Swap /
OL*
Function
Speed
Bits
PCI Bus
Rope Numbers
Slot #
Y
High-Speed PCI-X (Public)
133 MHz
64
5
2, 3 (Dual
Bandwidth)
6
Y
General PCI-X (Public)
66 MHz
64
6
9
7, 8
Y
General PCI-X (Public)
66 MHz
64
7
1
9, 10
N
UCIO (Private)
33 MHz
32
0
0
-
PCI/PCI-X/PCIe IOBP
On the 10 slot PCI/PCI-X/PCIe IOBP there are a total of eight Public slots (four PCI-X mode 1
and four PCIe), two Private Fast-core slots (PCI/PCI-X mode 1 64-bit/66-MHz), and one Private
Slow-core UCIO slot (PCI 32-bit/33-MHz). The eight Public slots are further divided into three
speed/bandwidth configurations:
•
Two PDHP, which operate at 64-bit/66-MHz PCI-X
•
Two PSHP, operating at 64-bit/133-MHz PCI-X
•
Four PCIe 8-lane (x8) 2.5 Gbps, two of which are switched
The two 66 MHz PCI/PCI-X slots are shared. Shared slots have many speed and mode change
restrictions during hot-plug add or remove operations.
Table 1-2 PCI/PCI-X/PCIe I/O Rope Groups
Hot Swap/OLR
Function
Speed
Bits
Rope Numbers
Slot #
N
Core I/O (Private)
66 MHz
64
8
1, 2
N
PCIe x8 (Public or Private depending upon
Core I/O)
2.5 Gbps
x8
10, 11
3, 4
Y
PCIe x8 (Public)
2.5 Gbps
x8
12, 13, 14, 15
5
Y
PCIe x8 (Public)
2.5 Gbps
x8
4, 5, 6, 7
6
Y
High-Speed PCI-X (Public)
133 MHz
64
2, 3
7
Y
High-Speed PCI-X (Public)
133 MHz
64
9
8
Y
General PCI-X (Public)
66 MHz
64
1
9, 10
N
UCIO (Private)
33 MHz
32
0
-
PCIe MPS Optimization
For PCIe-based systems, each PCIe device has a configurable MPS (maximum payload size)
parameter. Larger MPS values can enable the optimization to gain higher performance.MPS
Optimization is supported on PCIe systems running HP-UX, Open VMS, and Linux. System
firmware level greater than 02.03 performs an optimization during boot time to set the MPS
value to the largest size supported by both a PCIe root port and the devices below it.
The default server state is optimization disabled. When disabled system firmware sets MPS to
the minimum value on each PCIe device.
The info io command will display the current PCIe MPS optimization setting. See
To enable PCIe MPS optimization use the ioconfig mps_optimize command. See
For non-PCIe systems, ioconfig and info io will not display the MPS optimization policy
setting. The Set PCIe MPS Optimization boot manager menu also will not be displayed. Running
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Overview