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_idThe value from the PHB node ibm,opal-phbid property for the device.
addrA 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