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Intel® 82598 10 GbE Controller: Datasheet

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Intel® 82598 10 GbE Controller: Datasheet

The Intel® 82598 10 GbE Controller is a single, compact, low-power component with two fully integrated Gigabit Ethernet Media Access Control (MAC) and XAUI ports.

The 82598 supports 10GBASE-KX4/1000BASE-KX as in IEEE 802.3ap and CX4 (802.3ak). Ports also contain a serializer-deserializer (designated “BX”) to support 1000Base-SX/LX (optical fiber) and GbE backplane applications. CX4 and XAUI interfaces are also supported. In addition to managing MAC and PHY Ethernet layer functions, the controller manages PCIe packet traffic across its transaction, link, and physical/logical layers.

The 82598 supports Intel’s Input/Output Acceleration Technology (I/OAT) v2.0. In addition, virtual queues are supported by I/O virtualization.

The 82598’s on-board System Management Bus (SMBus) and Network Controller Sideband Interface (NC-SI) ports enable network manageability implementations. With SMBus, management packets can be routed to or from a management processor. SMBus ports enable industry standards, such as Intelligent Platform Management Interface (IPMI). NC-SI ports enable support for the industry DMTF standard.

The 82598, with PCIe architecture, is designed for high-performance and low host-memory access latency. The 82598 connects directly to a system Memory Control Hub (MCH) or I/O Controller Hub (ICH) using one, two, four, or eight PCIe lanes.

Wide internal data paths eliminate performance bottlenecks by handling large address and data words. Combining a parallel and pipelined logic architecture optimized for Ethernet and independent transmit and receive queues, the 82598 efficiently handles packets with minimum latency. The 82598 includes advanced interrupt handling features. It uses efficient ring buffer descriptor data structures, with 32 Tx queues and 64 RX queues. Large on-chip buffers maintain superior performance. In addition, using hardware acceleration, the 82598 offloads tasks from the host, such as TCP/UDP/IP checksum calculations and TCP segmentation.
Read the full Intel® 82598 10 GbE Controller: Datasheet.