As defined by the PCI specification, the bottom tackle registers define the place to begin of the I/O and reminiscence addresses that every adapter has been allotted in system reminiscence. Also, defined by the PCI specification, an adapter can have as a lot as six BARs. It is up to the adapter vendor to implement one or more BARS within the adapter for I/O or memory addressing, as desired. According to the PCI specification, every of the six BAR entries in an adapter's configuration house is identified as to its resource kind (bit zero signifies whether this BAR describes a reminiscence space or I/O space).
For example, if the class of the adapter 310 have been of kind “SCSI” , the configuration supervisor 500 would follow the process described in FIG. 10 for freezing the communication for a mass storage adapter 102. Next, in some embodiments, the new plug hardware 318 asserts bus reset, if needed, before removing energy . In different embodiments, the configuration supervisor 500 specifically causes bus reset to be asserted before directing the hot plug hardware 318 to take away power. For embodiments of the pc proven in FIG.
The methodology as outlined in claim 15, whereby the new mass storage adapter is configured to communicate with an Standard Architecture bus. The method as outlined in claim 15, wherein restarting communications includes sending an input/output packet from a configuration supervisor to a filter customized device module related to the mass storage adapter. The methodology as defined in claim 8, whereby the mass storage adapter is configured to speak with a Peripheral Component Interconnect bus. The technique as outlined in declare eight, wherein the mass storage adapter is configured to communicate with an Industry Standard Architecture bus. The method as outlined in claim eight, wherein the mass storage adapter is configured to communicate with an Extended Industry Standard Architecture bus. 17 is a flowchart illustrating one embodiment of the process by which the configuration supervisor 1100 suspends and restarts the state of an adapter 310 under WinNT.
9A and 9B are flowcharts showing one course of by which the configuration manager could droop and restart I/O for decent swapping community adapters under the NetWare Operating System, proven in FIG. 2 is a block diagram displaying a primary embodiment of a multiple bus configuration connecting I/O adapters and a network of microcontrollers to the clustered CPUs of the fault tolerant laptop system, proven in FIG. The subject of the invention relates to I/O adapters in laptop systems. More particularly, the sphere of invention pertains to the new add and swap of adapters on a computer system. The configuration manager 1100 controls the communication between each adapter and adapter driver by calling the SCSI port 1104 and NDIS 1105.
Maxlan-boards is a variable maintained by the NetWare Operating System indicating the utmost variety of logical community adapters supported. A significant component of value is hiring administration personnel. These costs decline dramatically when computer techniques could be managed utilizing a standard set of instruments, and the place they don't require immediate consideration when a failure happens.
Finally in power cables to energetic. The community adapter 104 sometimes features a community controller 128. In sure configurations there could also be multiple community controller adapter linked to the pc a hundred. Typically, the mass storage adapter 102 and the network adapter 104 are connected to the computer using a standards-based bus system.
12 is one embodiment of a flowchart exhibiting the process by which the Windows NT Operating System initializes the adapter drivers proven in FIG. eleven at boot time.
The ODI specification describes the set of interface (FIG. 1) and software program modules utilized by hardware vendors to interface with the NetWare operating system. At the core of the ODI is the hyperlink assist layer 502. The LSL 502 is the interface between drivers and protocol stacks . Any LAN driver written to ODI specs can talk with any ODI protocol stack via the LSL 502.
The adapter driver 308 initializes this microcontroller . 12 is a flowchart showing one embodiment of the method by which WinNT loads each adapter driver at system boot time. WinNT maintains an ordered record of adapter drivers which are registered with the operating system. This list determines the order by which each adapter gets initialized by WinNT.