Managing Direct I/O Devices on Non-primary Root Domains
The following example shows how to manage direct I/O devices on non-primary root domains.
The following command produces an error because it attempts to remove a slot from the root domain while it is still active:
primary# ldm remove-io /SYS/MB/PCIE7 ldg1
Dynamic I/O operations on PCIe slots are not supported.
Use start-reconf command to trigger delayed reconfiguration and make I/O
changes statically.The following command shows the correct method of removing a slot by first initiating a delayed reconfiguration on the root domain.
primary# ldm start-reconf ldg1 Initiating a delayed reconfiguration operation on the ldg1 domain. All configuration changes for other domains are disabled until the ldg1 domain reboots, at which time the new configuration for the ldg1 domain will also take effect. primary# ldm remove-io /SYS/MB/PCIE7 ldg1 ------------------------------------------------------------------------------ Notice: The ldg1 domain is in the process of a delayed reconfiguration. Any changes made to the ldg1 domain will only take effect after it reboots. ------------------------------------------------------------------------------ primary# ldm stop-domain -r ldg1
The following ldm list-io command verifies that the /SYS/MB/PCIE7 slot is no longer on the root domain.
primary# ldm list-io NAME TYPE BUS DOMAIN STATUS ---- ---- --- ------ ------ /SYS/PM0/CMP0/PXE BUS pci_0 primary /SYS/PM0/CMP1/PXE BUS pci_1 primary /SYS/PM0/CMP0/NIU_CORE NIU niu_0 primary /SYS/PM0/CMP1/NIU_CORE NIU niu_1 primary /SYS/MB/PCIE0 PCIE pci_0 primary OCC /SYS/MB/PCIE2 PCIE pci_0 primary OCC /SYS/MB/PCIE4 PCIE pci_0 primary OCC /SYS/MB/PCIE6 PCIE pci_0 primary EMP /SYS/MB/PCIE8 PCIE pci_0 primary EMP /SYS/MB/SASHBA PCIE pci_0 primary OCC /SYS/MB/NET0 PCIE pci_0 primary OCC /SYS/MB/PCIE1 PCIE pci_1 ldg1 OCC /SYS/MB/PCIE3 PCIE pci_1 ldg1 OCC /SYS/MB/PCIE5 PCIE pci_1 ldg1 OCC /SYS/MB/PCIE7 PCIE pci_1 OCC /SYS/MB/PCIE9 PCIE pci_1 ldg1 EMP /SYS/MB/NET2 PCIE pci_1 ldg1 OCC /SYS/MB/NET0/IOVNET.PF0 PF pci_0 primary /SYS/MB/NET0/IOVNET.PF1 PF pci_0 primary /SYS/MB/PCIE5/IOVNET.PF0 PF pci_1 ldg1 /SYS/MB/PCIE5/IOVNET.PF1 PF pci_1 ldg1 /SYS/MB/NET2/IOVNET.PF0 PF pci_1 ldg1 /SYS/MB/NET2/IOVNET.PF1 PF pci_1 ldg1
The following commands assign the /SYS/MB/PCIE7 slot to the ldg2 domain. The ldm start-domain command starts the ldg2 domain.
primary# ldm add-io /SYS/MB/PCIE7 ldg2 primary# ldm start-domain ldg2 LDom ldg2 started