Abstract: In one embodiment, a networked system includes network interface ports to couple to a computer data network, PCIe devices, bridge devices coupled to network interface ports, a PCIe network switch coupled between bridge devices and PCIe devices, and a configuration device communicatively coupled to bridge devices and PCIe devices. Ports transmit outgoing and receive incoming network traffic. PCIe devices support a function of the computer data network. Each bridge device receives incoming network traffic portions and transmits outgoing network traffic portions through a respective network interface port. PCIe network switch routes PCIe packets between the plurality of bridge devices and the plurality of PCIe devices. Configuration device configures and initializes the PCIe devices for commands and operations that originate from the bridge devices.

Abstract: A method, system, and apparatus are provided for a distributed firewall and virtual network services on a network. In one example, the method includes storing a plurality of predefined security groups, wherein each predefined security group has a set of predefined security rules for network packets configured to be transmitted between virtual machines (VMs) within the network; associating each virtual machine (VM) within the network with one or more predefined security groups (SGs); filtering an outgoing network packet from a sending VM to a receiving VM in response to the predefined security rules associated with the predefined SGs associated with the sending VM to validate the communication desired in the outgoing network packet; forming a secured network packet by encapsulating a header, a security tag, and the outgoing network packet together; and transmitting the secured network packet into the network for delivery to the receiving VM.

Abstract: In one embodiment, a networked system includes network interface ports to couple to a computer data network, PCIe devices, bridge devices coupled to network interface ports, a PCIe network switch coupled between bridge devices and PCIe devices, and a configuration device communicatively coupled to bridge devices and PCIe devices. Ports transmit outgoing and receive incoming network traffic. PCIe devices support a function of the computer data network. Each bridge device receives incoming network traffic portions and transmits outgoing network traffic portions through a respective network interface port. PCIe network switch routes PCIe packets between the plurality of bridge devices and the plurality of PCIe devices. Configuration device configures and initializes the PCIe devices for commands and operations that originate from the bridge devices.

Abstract: In one embodiment, a monolithic integrated circuit includes a first UART, a second UART, and a multiplexer. The first UART has a parallel IO interface to couple to a host system to transceive parallel data and a serial IO interface. The second UART has a parallel IO interface and a serial IO interface coupled to the serial IO interface of the first UART. The first and second UARTs convert parallel data into serial data and serial data into parallel data. The multiplexer has an output coupled to the serial input of the first UART, a first input coupled to the serial output of the second UART, a second input coupled to a serial input of a serial communication port, and a select input coupled to a control signal selectively coupling serial interfaces of first and second UARTs together for remote terminal services at a remote computer system over a network.

Abstract: A method, system, and apparatus are provided for a distributed firewall and virtual network services on a network. In one example, the method includes storing a plurality of predefined security groups, wherein each predefined security group has a set of predefined security rules for network packets configured to be transmitted between virtual machines (VMs) within the network; associating each virtual machine (VM) within the network with one or more predefined security groups (SGs); filtering an outgoing network packet from a sending VM to a receiving VM in response to the predefined security rules associated with the predefined SGs associated with the sending VM to validate the communication desired in the outgoing network packet; forming a secured network packet by encapsulating a header, a security tag, and the outgoing network packet together; and transmitting the secured network packet into the network for delivery to the receiving VM.

Abstract: When interfacing with a host, a networking device can handle a first data like Bulk Data Send. In response to a first doorbell ring, the networking device can read a first queue entry from a send queue in the host. Based on the first queue entry, the networking device can read the first data from a first memory in the host and then output the read first data. The networking device can also handle a second data like Direct Packet Push. The networking device can store a second data received from the host. In response to a second doorbell ring, the networking device can output the second data. The first data and the second data can be associated with first and second queue entries, both on the same send queue in the host. High-throughput and low-latency can be achieved. Small and large data packets can be accommodated.

Abstract: When interfacing with a host, a networking device can handle a first data like Bulk Data Receive. The networking device can receive the first data and read a first queue entry from a receive queue in the host memory. In response to the read first queue entry, the networking device can write the first data to an unpinned memory in the host memory. The networking device can also handle a second data with a Receive Packet in Ring (RPIR) queue. The networking device can receive the second data and write the second data to a pinned memory in the host memory. The RPIR queue can be separate from or overlaid on the receive queue. High throughput and low-latency operation can be achieved. The use of a RPIR queue can facilitate the efficiency of resource utilization in the reception of data messages.

Abstract: In one embodiment, a monolithic integrated circuit includes a first UART, a second UART, and a multiplexer. The first UART has a parallel IO interface to couple to a host system to transceive parallel data and a serial IO interface. The second UART has a parallel IO interface and a serial IO interface coupled to the serial IO interface of the first UART. The first and second UARTs convert parallel data into serial data and serial data into parallel data. The multiplexer has an output coupled to the serial input of the first UART, a first input coupled to the serial output of the second UART, a second input coupled to a serial input of a serial communication port, and a select input coupled to a control signal selectively coupling serial interfaces of first and second UARTs together for remote terminal services at a remote computer system over a network.

Abstract: In one embodiment of the invention, a method for protecting a content addressable memory is disclosed. The method includes storing a marker bit associated with each data block stored in a random access memory (RAM), states of the marker bit representing whether the data block was recently read from the RAM or recently written into the RAM; receiving a client address pointing to a starting address of a data block stored in the RAM; comparing the client address against one or more addresses stored in a content addressable memory (CAM) to determine a hit indicating the client address was stored in the CAM or a miss indicating the client address was not stored in the CAM; and in response to a miss, the method further includes checking a state of the marker bit associated with the data block pointed to by the client address.

Abstract: In one embodiment of the invention, a method for protecting a content addressable memory is disclosed. The method includes storing a marker bit associated with each data block stored in a random access memory (RAM), states of the marker bit representing whether the data block was recently read from the RAM or recently written into the RAM; receiving a client address pointing to a starting address of a data block stored in the RAM; comparing the client address against one or more addresses stored in a content addressable memory (CAM) to determine a hit indicating the client address was stored in the CAM or a miss indicating the client address was not stored in the CAM; and in response to a miss, the method further includes checking a state of the marker bit associated with the data block pointed to by the client address.

Abstract: A feedback subsystem may be used to control the positioning of a local cursor of a display in response to receiving remote cursor movement information from a remote computer system. The feedback subsystem may send the remote cursor movement information to an operating system (OS) which may send local coordinate information to a graphics controller. Local coordinate information from the graphics controller may be used to compare with remote coordinate information received from the remote computer system. The feedback subsystem may repeatedly send the remote cursor movement information to the OS until it is determined that the local coordinate information from the graphics controller is consistent with the remote coordinate information received from the remote computer system.

Abstract: In one embodiment, a monolithic integrated circuit includes a first UART, a second UART, and a multiplexer. The first UART has a parallel IO interface to couple to a host system to transceive parallel data and a serial IO interface. The second UART has a parallel IO interface and a serial IO interface coupled to the serial IO interface of the first UART. The first and second UARTs convert parallel data into serial data and serial data into parallel data. The multiplexer has an output coupled to the serial input of the first UART, a first input coupled to the serial output of the second UART, a second input coupled to a serial input of a serial communication port, and a select input coupled to a control signal selectively coupling serial interfaces of first and second UARTs together for remote terminal services at a remote computer system over a network.

Abstract: In one embodiment of the invention, a server system is disclosed for data processing having a printed circuit board with one or more processors to process data; a network interface controller coupled to the one or more processors; and a monolithic integrated circuit (IC) coupled to the one or more processors and the network interface controller. The network interface controller couples the server system to a network for remote client access to the server system. The monolithic integrated circuit couples a remote computer system to the server system via the network. The remote computer system includes a remote storage device, a remote display, a remote keyboard, and a remote mouse to allow remote control and management of the server system.

Abstract: Modification to frame buffer memory information associated with a first display may be used to update information displayed on a second display. The first display may be mapped to a matrix of display areas. The modification to the frame buffer memory information may be detected be detecting write memory address. One or more display areas affected by the modification to the frame buffer memory information may be identified based on display parameters associated with the first display. Frame buffer memory information associated with the one or more affected display areas may be retrieved and compressed before being transmitted over a communication link to be displayed on the second display.

Abstract: Modification to frame buffer memory information associated with a first display may be used to update information displayed on a second display. The first display may be mapped to a matrix of display areas. The modification to the frame buffer memory information may be detected be detecting write memory address. One or more display areas affected by the modification to the frame buffer memory information may be identified based on display parameters associated with the first display. Frame buffer memory information associated with the one or more affected display areas may be retrieved and compressed before being transmitted over a communication link to be displayed on the second display.

Abstract: In one embodiment of the invention, a server system is disclosed for data processing having a printed circuit board with one or more processors to process data; a network interface controller coupled to the one or more processors; and a monolithic integrated circuit (IC) coupled to the one or more processors and the network interface controller. The network interface controller couples the server system to a network for remote client access to the server system. The monolithic integrated circuit couples a remote computer system to the server system via the network. The remote computer system includes a remote storage device, a remote display, a remote keyboard, and a remote mouse to allow remote control and management of the server system.

Abstract: A feedback subsystem may be used to control the positioning of a local cursor of a display in response to receiving remote cursor movement information from a remote computer system. The feedback subsystem may send the remote cursor movement information to an operating system (OS) which may send local coordinate information to a graphics controller. Local coordinate information from the graphics controller may be used to compare with remote coordinate information received from the remote computer system. The feedback subsystem may repeatedly send the remote cursor movement information to the OS until it is determined that the local coordinate information from the graphics controller is consistent with the remote coordinate information received from the remote computer system.

Abstract: In one embodiment, a monolithic integrated circuit includes a first UART, a second UART, and a multiplexer. The first UART has a parallel IO interface to couple to a host system to transceive parallel data and a serial IO interface. The second UART has a parallel IO interface and a serial IO interface coupled to the serial IO interface of the first UART. The first and second UARTs convert parallel data into serial data and serial data into parallel data. The multiplexer has an output coupled to the serial input of the first UART, a first input coupled to the serial output of the second UART, a second input coupled to a serial input of a serial communication port, and a select input coupled to a control signal selectively coupling serial interfaces of first and second UARTs together for remote terminal services at a remote computer system over a network.

Abstract: A Hot Plug system includes a PCI bus, an expansion card, a slot for receiving the expansion card, and a Hot Plug controller directly connected to the expansion card and the slot, but only indirectly connected to the PCI bus. An enhanced arbiter monitors and controls the PCI bus on behalf of the Hot Plug controller, thereby allowing the Hot Plug controller to be disconnected from the PCI bus and reducing a critical load on the PCI bus. Because the Hot Plug controller no longer needs to perform monitoring and controlling functions on the PCI bus, the logic within the Hot Plug controller can be significantly simplified. However, the Hot Plug controller still maintains direct control over the expansion slots and associated expansion cards. In one embodiment, the enhanced arbiter with Hot Plug capability is implemented with a bridge on a chipset.

Abstract: A dynamic priority scheme is provided that uses information including the status of the target and data availability in deciding which PCI master should be assigned ownership of the bus. The target uses delayed transactions to complete a read access targeted to it. The target also integrates a buffer management scheme, in one embodiment an input/output cache, for buffer management. The present invention optimizes the performance and utilization of the PCI bus.