Patent classifications
H04L12/879
Method and apparatus for handling incoming data frames
A method and apparatus for handling incoming data frames within a network interface controller. The network interface controller comprises at least one controller component operably coupled to at least one memory element. The at least one controller component is arranged to identify a next available buffer pointer from a pool of buffer pointers stored within a first area of memory within the at least one memory element, receive an indication that a start of a data frame has been received via a network interface, and allocate the identified next available buffer pointer to the data frame.
Using completion queues for RDMA event detection
Systems and methods for using completion queues for Remote Direct Memory Access (RDMA) event detection. An example method may comprise: receiving a request to create a queue pair for processing Remote Direct Memory Access (RDMA) requests using an RDMA-enabled network interface controller (RNIC), the queue pair comprising a send queue and a receive queue; associating the queue pair with a completion queue associated with the RNIC, the completion queue employed to store a plurality of completion queue elements associated with completed work requests; receiving a notification of an interrupt associated with the RNIC; and responsive to determining that at least one of a number of send queues associated with the completion queue or a number of receive queues associated with the completion queue exceeds zero, identifying at least one of: a first application registered to be notified of RDMA send events or a second application registered to be notified of RDMA receive events.
INDICATING MULTIPLE ENCODING SCHEMES IN A DISPERSED STORAGE NETWORK
A method includes transmitting a first write request that includes a first encoded data slice of a first data object encoded under a first encoding scheme, and a first slice identifier corresponding to the first encoded data slice assigned to a first memory location of a distributed storage network (DSN) based on the first slice identifier. A second write request that includes a second encoded data slice of the first data object encoded under a second encoding scheme, and a second slice identifier corresponding to the second encoded data slice, is transmitted, and the second encoded data slice is assigned to a second memory location of the DSN based on the second slice identifier. A request to access the first data object is received. A derived second slice identifier is generated in response to determining that the first data object requested for access is stored under multiple encoding schemes.
Radio communication apparatus
A radio receiving apparatus for receiving the variable-length RLC PDU data in an RLC layer includes the buffer memory sectioned into a plurality of areas having a predetermined maximum data length of the RLC PDU data. By referring to a sequence number SN included in each received RLC PDU data, the radio receiving apparatus stores the RLC PDU data having an identical sequence number SN into an identical area, and assembles an RLC SDU data on a basis of the RLC PDU data stored in each area.
Framework for scheduling packets with multiple destinations in a virtual output queue network switch
A system for communicating a multi-destination packet through a network switch fabric is described. The system receives the multi-destination packet at an input port of the network switch fabric, wherein the multi-destination packet is directed to multiple output ports, and wherein the network switch fabric has a virtual output queue (VOQ) architecture, wherein each input port maintains a separate VOQ for each output port. The system sends the multi-destination packet by inserting the multi-destination packet into VOQs associated with the multiple output ports. While inserting the multi-destination packet in each VOQ, if the VOQ is empty, the system inserts the multi-destination packet at a head of the VOQ. Otherwise, if the VOQ is not empty and if the VOQ contains an end of a last complete packet received by the VOQ, the system inserts the multi-destination packet into the VOQ at the end of the last complete packet.
SELECTING MEMORY FOR DATA ACCESS IN A DISPERSED STORAGE NETWORK
A method begins by a processing module of a dispersed storage and task (DST) execution unit receiving a data request for execution by the DST execution unit, the data request including a slice name associated with an encoded data slice of the data request. The method continues with the processing module generating a scoring resultant corresponding to each of a plurality of memories of the DST execution unit, in accordance with a ranking function and the slice name. The method continues with the processing module selecting one of the plurality of memories of the DST execution unit in accordance with a mapping function and executing the data request utilizing the one of the plurality of memories of the DST execution unit.
Application Centric Distributed Storage System and Method
A software defined storage network comprising one or more storage nodes, each storage node including a computer processor and one or more data storage devices; the one or more storage devices including a computer readable medium storing data partitioned into one or more volumes; wherein the one or more volumes are visible to at least a subset of the storage nodes and to non-storage nodes on the network; and a computer system in communication with the network having a computer processor executing instructions stored on a computer readable medium to define a plurality of actors providing a storage service; wherein each actor defines a virtual representation of at least one of the volumes and acts as a controller for each of the at least one data storage devices; wherein each of the plurality of actors places data for each volume on the storage devices according to at least one policy.
TECHNOLOGIES FOR MANAGING REPLICA CACHING IN A DISTRIBUTED STORAGE SYSTEM
Technologies for managing replica caching in a distributed storage system include a storage manager device. The storage manager device is configured to receive a data write request to store replicas of data. Additionally, the storage manager device is configured to designate one of the replicas as a primary replica, select a first storage node to store the primary replica of the data in a cache storage and at least a second storage node to store a non-primary replica of the data in a non-cache storage. The storage manager device is further configured to include a hint in a first replication request to the first storage node that the data is to be stored in the cache storage of the first storage node as the primary replica. Further, the storage manager device is configured to transmit replication requests to the respective storage nodes. Other embodiments are described and claimed.
SENDING PACKETS USING OPTIMIZED PIO WRITE SEQUENCES WITHOUT SFENCES AND OUT OF ORDER CREDIT RETURNS
Methods and apparatus for sending packets using optimized PIO write sequences without sfences and out-of-order credit returns. Sequences of Programmed Input/Output (PIO) write instructions to write packet data to a PIO send memory are received by a processor in an original order and executed out of order, resulting in the packet data being written to send blocks in the PIO send memory out of order, while the packets themselves are stored in sequential order once all of the packet data is written. The packets are egressed out of order by egressing packet data contained in the send blocks to an egress block using a non-sequential packet order that is different than the sequential packet order. In conjunction with egressing the packets, corresponding credits are returned in the non-sequential packet order. A block list comprising a linked list and a free list are used to facilitate out-of-order packet egress and corresponding out-of-order credit returns.
DATA COMPRESSION FOR CELLULAR INTERNET OF THINGS (CIOT)
Aspects of the present disclosure provide techniques for compressing data packets for cellular internet of things (CIoT) communications. An example method generally includes establishing at least one prefill buffer common to one or more UEs, wherein the prefill buffer includes a plurality of common strings, generating a compressed packet by finding matches to the common strings in at least one of a header portion or payload portion of the packet and associating identifiers with the common strings, and transmitting the packet.