hpci_bus_t(D4hpci)

hpci_bus_t -- information about the hotplug controller bus

Syntax

   #include <sys/types.h>
   #include <sys/hpci.h>
   #include <sys/ddi.h>

Description

Structure definition

The hpci_bus_t structure contains the following members:

   hpci_bus_t   *next;
   int                bustype;
   int                busid;
   rm_key_t           hpcd_rmkey;
   union {
          hpci_pci_bus_info_t       pcibus;
          char                      filler[32];
   } hpci_bus_udata;
   
   int                socket_cnt;
   hpci_socket_t      socket_list;

The hpci_pci_bus_info_t structure contains the following members:

           int     pci_busnum;
   
           ushort_t runningSpeed;
           ushort_t maxSpeed;

The hpci_socket_t structure contains the following members:

           hpci_socket_t *next;
           hpci_socket_info_t       info;

Structure members

The members of the hpci_bus_t structure are defined as:

next: Pointer to the next bus in the list.
bustype: Type of bus. Use the values defined for the CM_BRDBUSTYPE parameter documented on the cm_params(D5) manual page.
busid: ID of this bus, assigned by the Hot-plug Controller Driver. For PCI buses, assigned to be the PCI bus number.
hpcd_rmkey: Resource manager key of this Hot-plug Controller Dirver instance.
pcibus: Specific information about the PCI bus.
filler: Reserved space for future expansion.
socket_cnt: Number of hot-plug capable sockets attached to this bus.
socket_list: Socket information for the sockets connected to this bus.

The members of the hpci_pci_bus_info_t structure are defined as:

pci_busnum: The PCI bus number.
runningSpeed: The speed at which the bus is currently running, expressed in Mhz. For example, 33 means 33Mhz and 66 means 66 Mhz.
maxSpeed: Maximum speed at which the bus can run.

The members of the hpci_socket_t structure are defined as:

next: Next socket in the list, assigned by the hpcd driver.
info: The socket information, assigned by the hpcd driver.

Usage

The hpci_bus_t structure is allocated and populated by the HPCD driver.

Hardware applicability

All

Version applicability

hpci: 1

References

cm_params(D5)

``Hotplug devices'' in HDK Technical Reference
``Bus'' in HDK Technical Reference
``PCI'' in HDK Technical Reference