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AssigneeInternational Business Machines Corporation
InventorJimmy G. Foster, SR.
Estimating the term…
Methods, systems, and products are disclosed for dynamically allocating communication lanes for a plurality of sockets in a point-to-point, serial I/O expansion subsystem of a computing system, the expansion subsystem including an switch that supports a maximum number of enabled communication lanes, each socket having a same form factor, each socket connected to the switch using a same predefined number of communication lanes, that include: identifying, during a boot process for the computing system, each of the sockets in which an adapter is installed; determining, for each installed adapter, a maximum link width for that adapter; and enabling, for each of the sockets in which an adapter is installed, a set of communication lanes for communications between the adapter installed in that socket and the expansion subsystem switch in dependence upon the maximum link width for each adapter and the maximum number of enabled communication lanes supported by the switch.
A method of dynamically allocating communication lanes for a plurality of input/output (‘I/O’) adapter sockets in a point-to-point, serial I/O expansion subsystem of a computing system, the point-to-point, serial I/O expansion subsystem including an expansion subsystem switch that supports a maximum number of enabled communication lanes, each I/O adapter socket having a same form factor, each I/O adapter socket connected to the expansion subsystem switch using a same predefined number of communication lanes, the method comprising:
A computing system for dynamically allocating communication lanes for a plurality of I/O adapter sockets in a point-to-point, serial I/O expansion subsystem of the computing system, the point-to-point, serial I/O expansion subsystem including an expansion subsystem switch that supports a maximum number of enabled communication lanes, each I/O adapter socket having a same form factor, each I/O adapter socket connected to the expansion subsystem switch using a same predefined number of communication lanes, the computing system comprising a processor and a computer memory operatively coupled to the processor, the computer memory having disposed within it computer program instructions capable of:
A computer program product for dynamically allocating communication lanes for a plurality of I/O adapter sockets in a point-to-point, serial I/O expansion subsystem of a computing system, the point-to-point, serial I/O expansion subsystem including an expansion subsystem switch that supports a maximum number of enabled communication lanes, each I/O adapter socket having a same form factor, each I/O adapter socket connected to the expansion subsystem switch using a same predefined number of communication lanes, the computer program product disposed upon a computer readable medium, the computer program product comprising computer program instructions capable of:
Dependencies are inferred from the claim text.