摘要:
A dual interface coherent and non-coherent network interface controller architecture is generally presented. In this regard, a network interface controller is introduced including a non-coherent bus interface to communicatively couple with devices of a system through a non-coherent protocol, the non-coherent bus interface to facilitate discovery of the network interface controller by an operating system, a coherent bus interface to communicatively couple with devices of the system through a coherent protocol, and a coherency engine to perform coherent transactions over the coherent interface including to snoop for writes on system memory. Other embodiments are also disclosed and claimed.
摘要:
In one embodiment, a data movement module (DMM) may receive a command to copy data from a source buffer to a destination buffer. One or more cache lines corresponding to addresses of the source buffer and the destination buffer may be invalidated. Also, an entry may be added to a queue to indicate that the command to copy is completion pending.
摘要:
In one embodiment, it may be determined whether a processor is going to access a packet payload that is stored in a source buffer. If the processor is not going to access the packet payload, a data movement module (DMM) may move the packet payload from the source buffer to a destination buffer.
摘要:
Provided are a method, system, and program for managing transmit throughput for a network controller. In one embodiment, transmit requests from an application may be posted by the device driver to the network controller of the network adapter in a pipeline of transmit requests without waiting for an acknowledgment of the transfer of the accompanying transmit data to the network controller. In another aspect, a device driver monitors the available buffer space of a network controller buffer to ensure that the network controller has sufficient available buffer space before posting the next transmit request to the network controller. In accordance with yet another aspect, the device driver can copy transmit data from an application buffer to a driver buffer if the size of the transmit data of a particular transmit request is below a programmable threshold. If so, the device driver can notify the application to permit the application buffer to be released.
摘要:
Methods and apparatus to reduce the number of uncacheable write requests are described. In one embodiment, a single uncacheable write request is sent instead of a plurality of uncacheable write requests to an address.
摘要:
In one embodiment, a data movement module (DMM) may receive a command to copy data from a source buffer to a destination buffer. One or more cache lines corresponding to addresses of the source buffer and the destination buffer may be invalidated. Also, an entry may be added to a queue to indicate that the command to copy is completion pending.
摘要:
In an embodiment, a method is provided. The method of this embodiment provides generating one or more packets of data, the one or more packets of data being associated with a connection; and associating the one or more packets with one of a plurality of transmit queues based, at least in part, on the connection associated with the one or more packets.
摘要:
Techniques are described that can be used to support integrity validation of protocol data units. An iSCSI compatible logic may establish a memory region to store a header portion of the protocol data unit. In some implementations, the iSCSI compatible logic may read the header and determine a size of a second memory region to store a payload portion of the protocol data unit. In some implementations, the iSCSI compatible logic may set the second memory region as a maximum possible size of the payload portion. TCP compatible logic may include the capability to validate an integrity of the header or data portions of the protocol data unit. TCP compatible logic may request data mover logic to determine an integrity validation value for a header and/or data portion of the protocol data unit in the process of copying the protocol data unit to among the memory region or the second memory region. TCP compatible logic may compare the determined integrity validation value with an integrity validation value included with the protocol data unit.
摘要:
Methods and apparatus relating to User Datagram Protocol (UDP) transmit acceleration and/or pacing are described. In one embodiment, a data movement module (DMM) may segment a UDP packet payload into a plurality of segments. The size of each of the plurality of segments may be less than or equal to a maximum transmission unit (MTU) size in accordance with a user datagram protocol (UDP). Other embodiments are also disclosed.
摘要:
Techniques are described that can be used to support integrity validation of protocol data units. An iSCSI compatible logic may establish a memory region to store a header portion of the protocol data unit. In some implementations, the iSCSI compatible logic may read the header and determine a size of a second memory region to store a payload portion of the protocol data unit. In some implementations, the iSCSI compatible logic may set the second memory region as a maximum possible size of the payload portion. TCP compatible logic may include the capability to validate an integrity of the header or data portions of the protocol data unit. TCP compatible logic may request data mover logic to determine an integrity validation value for a header and/or data portion of the protocol data unit in the process of copying the protocol data unit to among the memory region or the second memory region. TCP compatible logic may compare the determined integrity validation value with an integrity validation value included with the protocol data unit.