Freescale Semiconductor,inc.

Nxp B.v.

Vakul Garg

Peter Doliwa

Bharat Bhushan

Jan René Brands

Ruchika Gupta

Varun Sethi

Geoffrey Thorpe

A method is provided for establishing a secure communication session in a communication system. The method includes providing a handshake layer functional block and providing a record layer functional block separate from the handshake layer functional block. Functionality of the record layer functional block is not duplicated in the handshake layer functional block. The record layer functional block of a first communication peer generates an ephemeral key pair. A public key of the ephemeral key pair is transmitted to the handshake layer functional block of a second communication peer via the handshake layer functional block of the first communication peer. A session key is generated from the public key of the second communication peer and a private key of the first communication peer. Messages communicated between the first communication peer and the second communication peer are protected using the session key.

Method for establishing a secure communication session in a communications system

A method is provided for establishing a communication session in a communications system. The method includes providing a handshake layer functional block in a first communication peer, and providing a data communication layer functional block separate from the handshake layer functional block in the first communication peer. Functionality of the data communication layer is not duplicated in the handshake layer. If the data communication layer is unable to process a received encrypted message; transmitting, by the data communication layer, a configuration request message to the handshake layer, and transmitting, by the handshake layer, in response to the configuration request message, a set channel state message to enable the data communication layer to process application data after a handshake phase of the protocol session is complete. Then, application data can be communicated through the data communication layer functional block of the first communication peer to a second communication peer.

A method is provided for establishing a secure communication session in a communications system. The method includes providing a handshake layer functional block and providing a record layer functional block separate from the handshake layer functional block. A first ephemeral key pair is generated by the record layer functional block of a first communication peer. A public key of the first ephemeral key pair is transmitted to a second communication peer. The handshake layer functional block of the first communication peer generates a second ephemeral key pair. A public key of the second ephemeral key pair is transmitted to the second communication peer. The second communication peer generates a third ephemeral key pair. A handshake key is generated from the public key of the second communication peer and a private key of the handshake layer block of the first communication peer. A session key is generated from the public key of the second communication peer and a private key of the record layer block of the first communication peer

A system for pre-fetching a data frame from a system memory to a cache memory includes a processor, a queue manager, and a pre-fetch manager. The processor issues a de-queue request associated with the data frame. The queue manager receives the de-queue request, identifies a frame descriptor associated with the data frame, and generates a pre-fetch hint signal. The pre-fetch manager receives the pre-fetch hint signal and generates a pre-fetch signal and enables the cache memory to pre-fetch the data frame. Subsequently, the queue manager de-queues the frame descriptor. The processor receives the frame descriptor and reads the data frame from the cache memory.

System for pre-fetching data frames using hints from work queue scheduler

A data processing system includes a host processor, a co-processor, and a memory that includes multiple buffer descriptor (BD) rings. The host processor includes multiple cores that execute multiple threads to process data packets stored in the memory. The host processor generates a notification command based on multiple context switch events that occur in the cores. The notification command indicates a context switch event type and BD ring IDs associated with BD rings to be polled by the co-processor. The BD rings are referred to as active BD rings. The co-processor polls only the active BD rings based on the notification command and processes the data packets associated with the active BD rings.

Multi-core system for processing data packets

A system for managing data packets has multiple cores, a data buffer, a hardware accelerator, and an interrupt controller. The interrupt controller transmits a first interrupt signal to a first one of the cores based on a first hardware signal received from the hardware accelerator. The first core creates a copy of buffer descriptors (BD) of a buffer descriptor ring that correspond to the data packets in the data buffer in a first virtual queue and indicates to the hardware accelerator that the data packets are processed. If there are additional data packets, the interrupt controller transmits a second interrupt signal to a second core, which performs the same steps as performed by the first core. The first and the second cores simultaneously process the data packets associated with the BDs in the first and second virtual queues, respectively.

Multi-core processor for managing data packets in communication network

A system and method for dynamically migrating stash transactions include first and second processing cores, an input/output memory management unit (IOMMU), an IOMMU mapping table, an input/output (I/O) device, a stash transaction migration management unit (STMMU), and an operating system (OS) scheduler. The first core executes a first thread associated with a frame manager. The OS scheduler migrates the first thread from the first core to the second core and generates pre-empt notifiers to indicate scheduling-out and scheduling-in of the first thread from the first core and to the second core. The STMMU uses the pre-empt notifiers to enable dynamic stash transaction migration.

Growing community of inventors

Shahdara, India

Vakul Garg