OPAL_PCI_GET_PBCQ_TUNNEL_BAR

#define OPAL_PCI_GET_PBCQ_TUNNEL_BAR 164

int64_t opal_pci_get_pbcq_tunnel_bar(uint64_t phb_id, uint64_t *addr);

The host calls this function to read the address out of the PBCQ Tunnel Bar register.

Parameters

phb_id
The value from the PHB node ibm,opal-phbid property for the device.
addr
A pointer to where the address stored in the PBCQ Tunnel Bar register will be copied.

Return Values

OPAL_SUCCESS
Operation was successful
OPAL_PARAMETER
Invalid PHB or addr parameter
OPAL_UNSUPPORTED
Not supported by hardware

OPAL_PCI_SET_PBCQ_TUNNEL_BAR

#define OPAL_PCI_SET_PBCQ_TUNNEL_BAR 165

int64_t opal_pci_set_pbcq_tunnel_bar(uint64_t phb_id, uint64_t addr);

The host calls this function to set the PBCQ Tunnel Bar register.

Parameters

phb_id
The value from the PHB node ibm,opal-phbid property for the device.
addr

The value of the address chosen for the PBCQ Tunnel Bar register. If the address is 0, then the PBCQ Tunnel Bar register will be reset. It the address is non-zero, then the PBCQ Tunnel Bar register will be set with

Bit[0:42]      Bit[8:50] of the address

Return Values

OPAL_SUCCESS
Operation was successful
OPAL_PARAMETER
Invalid PHB or addr parameter
OPAL_UNSUPPORTED
Not supported by hardware