Connected input/output hub management

A computer program product for implementing connected input/output (I/O) hub configuration and management, the computer program product comprising:na non-transitory storage medium readable by a processing circuit and storing instructions for execution by the processing circuit for performing a method, the method comprising:configuring a first I/O hub in wrap mode with a second I/O hub, the first and second I/O hubs communicatively coupled to one another via a wrap cable; andgenerating data traffic on a main computing subsystem that includes the first and second I/O hubs, comprising:converting, via the first I/O hub, a request to implement a transaction to an I/O device-readable request packet and transmitting the I/O device-readable request packet over the wrap cable;converting, via the second I/O hub, the I/O device-readable request packet into a system readable request and transmitting the system readable request over a system bus, the system readable request addressed to a system memory;in response to receiving, at the second I/O hub, a response to the system readable request from the system memory, converting, via the second I/O hub, the response to an I/O device-readable response packet, and transmitting the I/O device-readable response packet over the wrap cable; andconverting, via the first I/O hub, the I/O device-readable response packet into a system readable response packet, and transmitting the system readable response packet over the system bus to a processor that initiated the request to implement a transaction.

A system for implementing connected input/output (I/O) hub configuration and management, the system comprising:na first I/O hub;a second I/O hub communicatively coupled to the first I/O hub via a wrap cable;a processor in communication with the first and second I/O hubs, at least one of the processor, the first I/O hub, and the second I/O hub including logic for implementing a method, the method comprising:configuring the first I/O hub in wrap mode with the second I/O hub; andgenerating data traffic on a main computing subsystem that includes the processor and the first and second I/O hubs, comprising:converting, by the first I/O hub, a request to implement a transaction to an I/O device-readable request packet and transmitting the I/O device-readable request packet over the wrap cable;converting, by the second I/O hub, the I/O device-readable request packet into a system readable request and transmitting the system readable request over a system bus, the system readable request addressed to a system memory of the main computing subsystem;receiving, by the second I/O hub, a response to the system readable request from the system memory, converting the response to an I/O device-readable response packet, and transmitting the I/O device-readable response packet over the wrap cable; andconverting, by the first I/O hub, the I/O device-readable response packet into a system readable response packet, and transmitting the system readable response packet over the system bus to a processor that initiated the request to implement a transaction.

A method for implementing connected input/output (I/O) hub configuration and management, the method comprising:nconfiguring a first I/O hub in wrap mode with a second I/O hub, the first and second I/O hubs communicatively coupled to one another via a wrap cable; andgenerating data traffic on a main computing subsystem that includes the first and second I/O hubs, comprising:converting, by the first I/O hub, a request to implement a transaction to an I/O device-readable request packet and transmitting the I/O device-readable request packet over the wrap cable;converting, by the second I/O hub, the I/O device-readable request packet into a system readable request and transmitting the system readable request over a system bus, the system readable request addressed to a system memory;receiving, by the second I/O hub, a response to the system readable request from the system memory, converting the response to an I/O device-readable response packet, and transmitting the I/O device-readable response packet over the wrap cable; andconverting, by the first I/O hub, the I/O device-readable response packet into a system readable response packet, and transmitting the system readable response packet over the system bus to a processor that initiated the request to implement a transaction.