Abstract: The present invention provides a computer implemented method, data processing system and computer program product for running a diagnostic test on an I/O adapter. The data processing system communicates a stop command to a functional device driver; wherein the functional device driver is configured to communicate with the I/O adapter. The data processing system determines whether the functional device driver has completed storing a state of the I/O adapter. The data processing system loads a diagnostic device driver for communicating with the I/O adapter. The data processing system applies test inputs to the diagnostic device driver, wherein at least one test input is presented to the I/O adapter. The data processing system receives test results from the diagnostic device driver.

Abstract: The method determines whether a particular jumbo data packet benefits from fragmentation and reassembly management during communication through a network or networks. The method determines the best communication path, including path partners, between a sending information handling system (IHS) and a receiving IHS for the jumbo packet. A packet manager determines the maximum transmission unit (MTU) size for each path partner or switch in the communication path including the sending and receiving IHSs. The method provides transfer of the jumbo packets intact between those path partner switches of the communication path exhibiting MTU sized for jumbo or larger packet transfer. The method provides fragmentation of jumbo packets into multiple normal packets for transfer between switches exhibiting normal packet MTU sizes. The packet manager reassembles multiple normal packets back into jumbo packets for those network devices, including the receiving IHS, capable of managing jumbo packets.

Abstract: The present invention provides a computer implemented method, data processing system and computer program product for running a diagnostic test on an I/O adapter. The data processing system communicates a stop command to a functional device driver; wherein the functional device driver is configured to communicate with the I/O adapter. The data processing system determines whether the functional device driver has completed storing a state of the I/O adapter. The data processing system loads a diagnostic device driver for communicating with the I/O adapter. The data processing system applies test inputs to the diagnostic device driver, wherein at least one test input is presented to the I/O adapter. The data processing system receives test results from the diagnostic device driver.