Abstract:
A device, includes an instruction buffer. The instruction buffer is configured to store instructions related to at least a portion of a data stream to be analyzed by a state machine engine as the device. The state machine engine includes configurable elements configured to analyze the at least a portion of a data stream and to selectively output the result of the analysis. Additionally, the instruction buffer is configured to receive the indications as part of a direct memory access (DMA) transfer.
Abstract:
In one embodiment, a system includes a bus interface including a first processor, an indirect address storage storing a number of indirect addresses, and a direct address storage storing a number of direct addresses. The system also includes a number of devices connected to the bus interface and configured to analyze data. Each device of the number of devices includes a state machine engine. The bus interface is configured to receive a command from a second processor and to transmit an address for loading into the state machine engine of at least one device of the number of devices. The address includes a first address from the number of indirect addresses or a second address from the number of direct addresses.
Abstract:
Systems and methods are provided for managing access to registers. In one embodiment, a system may include a processor and a plurality of registers. The processor and the plurality of registers may be integrated into a single device, or may be in separate devices. The plurality of registers may include a first set of registers that are directly accessible by the processor, and a second set of registers that are not directly accessible by the processor. The second set of registers may, however, be accessed indirectly by the processor via the first set of registers. In one embodiment, the first set of registers may include a register for selecting a register bank from the second set of registers, and a register for selecting a particular address within the register bank, to allow indirect access by the processor to the registers of the second set.
Abstract:
Methods and apparatus are provided involving adaptive content inspection. In one embodiment, a content inspection processor may identify information with respect to input data and provide the information to a host controller. The host controller may adapt search criteria or other parameters and provide the adapted parameter to the content inspection processor. Other embodiments may include a content inspection processor having integrated feedback, such that results data is fed back to the content inspection processor. The results data may be processed before being provided to the content inspection processor.
Abstract:
Disclosed are methods and devices, among which is a device that includes a finite state machine lattice. The lattice may include a counter suitable for counting a number of times a programmable element in the lattice detects a condition. The counter may be configured to output in response to counting the condition was detected a certain number of times. For example, the counter may be configured to output in response to determining a condition was detected at least (or no more than) the certain number of times, determining the condition was detected exactly the certain number of times, or determining the condition was detected within a certain range of times. The counter may be coupled to other counters in the device for determining high-count operations and/or certain quantifiers.
Abstract:
A markup language is provided. The markup language describes the composition of automata networks. For example, the markup language uses elements that represent automata processing resources. These resources may include at least one of a state transition element, a counter element, and a Boolean element as respective automata processing resources.
Abstract:
Disclosed are methods and devices, among which is a system that includes a device that includes one or more pattern-recognition processors in a pattern-recognition cluster, for example. One of the one or more pattern-recognition processors may be initialized to perform as a direct memory access master device able to control the remaining pattern-recognition processors for synchronized processing of a data stream.
Abstract:
A state machine engine includes a state vector system. The state vector system includes an input buffer configured to receive state vector data from a restore buffer and to provide state vector data to a state machine lattice. The state vector system also includes an output buffer configured to receive state vector data from the state machine lattice and to provide state vector data to a save buffer.
Abstract:
A state machine engine includes a storage element, such as a (e.g., match) results memory. The storage element is configured to receive a result of an analysis of data. The storage element is also configured to store the result in a particular portion of the storage element based on a characteristic of the result. The storage element is additionally configured to store a result indicator corresponding to the result. Other state machine engines and methods are also disclosed.
Abstract:
A device including a data analysis element including a plurality of memory cells. The memory cells analyze at least a portion of a data stream and output a result of the analysis. The device also includes a detection cell. The detection cell includes an AND gate. The AND gate receives result of the analysis as a first input. The detection cell also includes a D flip-flop including an output coupled to a second input of the AND gate.