Patent ID: 6804673
Filing Date: 2004-10-12
Classification: G06F,Y10S

Abstract:
A method for a first computer device to obtain access assurance information regarding a remote direct memory access transaction directed to a second computer device over a computer network, the first computer device being coupled to a bus, and a network adaptor being coupled between the bus and the computer network, the method comprising:providing an access space within a memory space of the bus, the access space storing a first range of addresses associated with the network adaptor, and the network adaptor configured to process a transaction having a target address within the first range of addresses as the remote direct memory access transaction directed to the second computer device over the computer network; providing an assurance space within the memory space of the bus, the assurance space storing a second range of addresses associated with the network adaptor; and reading from the assurance space, the network adaptor configured to return the access assurance information regarding the remote direct memory access transaction to the first computer device in response to reading from the assurance space.