摘要:
A device, method, and system are disclosed. In one embodiment, the device comprises one or more error receiving units, each operable to receive error requests from a given layer in a protocol and synchronize the received error requests to a common clock domain for all layers, and an arbiter unit operable to receive the synchronized error requests from the one or more error receiving units, encode the error requests onto on a common error interconnect, and route the encoded error requests across the interconnect to configuration space.
摘要:
A multi-function peripheral component interconnect (PCI) device is disclosed. The device includes a first configuration data structure associated with a first PCI function, a second configuration data structure associated with a second PCI function and a PCI bridge, coupled the first and second configuration data structures. The PCI bridge processes transactions on behalf of the first and second functions.
摘要:
A device, method, and system are disclosed. In one embodiment, the device comprises one or more error receiving units, each operable to receive error requests from a given layer in a protocol and synchronize the received error requests to a common clock domain for all layers, and an arbiter unit operable to receive the synchronized error requests from the one or more error receiving units, encode the error requests onto on a common error interconnect, and route the encoded error requests across the interconnect to configuration space.
摘要:
A frame based data transfer device includes a receive frame parser, a receive frame processor, and a DMA engine. The receive frame parser receives a frame, stores framing information from the frame in a receive header queue, and stores an information unit from the frame in an information unit buffer. The receive frame processor is coupled to the receive header queue. The receive frame processor reads a transport layer task context as determined by a tag field in the framing information, determines how to handle the frame from the transport layer task context and framing information, generates a DMA descriptor, and stores an updated transport layer task context. The DMA engine is coupled to the information unit buffer and receive frame processor. The DMA engine reads a DMA task context, transfers the information unit to a destination memory by processing the DMA descriptor, and stores an updated DMA task context.
摘要:
According to one embodiment, a storage device is disclosed. The storage device includes a port having one or more lanes and a direct memory access (DMA) Descriptor Manager (DM). The DM generates and tracks completion of descriptors. The DM includes a first completion lookup table to track one or more fields of an input/output (I/O) context received at a first lane.
摘要:
Disclosed is a target port that implements a transport layer retry (TLR) mechanism. The target port includes a circuit having a transmit transport layer and receive transport layer in which both the transmit and receive transport layers are coupled to a link. A transmit protocol processor of the transmit transport layer controls a TLR mechanism in a serialized protocol. A receive protocol processor of the receive transport layer is coupled to the transmit transport layer and likewise controls the TLR mechanism in the serialized protocol.
摘要:
According to one embodiment, a storage device is disclosed. The storage device includes a port having one or more lanes and a direct memory access (DMA) Descriptor Manager (DM). The DM generates and tracks completion of descriptors. The DM includes a first completion lookup table to track one or more fields of an input/output (I/O) context received at a first lane.
摘要:
A frame based data transfer device includes a receive frame parser, a receive frame processor, and a DMA engine. The receive frame parser receives a frame, stores framing information from the frame in a receive header queue, and stores an information unit from the frame in an information unit buffer. The receive frame processor is coupled to the receive header queue. The receive frame processor reads a transport layer task context as determined by a tag field in the framing information, determines how to handle the frame from the transport layer task context and framing information, generates a DMA descriptor, and stores an updated transport layer task context. The DMA engine is coupled to the information unit buffer and receive frame processor. The DMA engine reads a DMA task context, transfers the information unit to a destination memory by processing the DMA descriptor, and stores an updated DMA task context.
摘要:
Disclosed is an initiator port that implements a transport layer retry (TLR) mechanism. The initiator port includes a circuit having a transmit transport layer and receive transport layer in which both the transmit and receive transport layers are coupled to a link. A transmit protocol processor of the transmit transport layer controls a TLR mechanism in a serialized protocol. A receive protocol processor of the receive transport layer is coupled to the transmit transport layer and likewise controls the TLR mechanism in the serialized protocol.