CHELSIO’S S310E 10GbE Storage Accelerator is a 10 Gigabit Ethernet adapter with PCI Express host bus interface optimized for storage applications. The third generation technology from Chelsio provides the highest 10GbE performance available and dramatically lowers host system CPU communications overhead.

With on-board hardware that offloads TCP/IP, iSCSI, and iWARP RDMA processing from its host system, the S310E frees up host CPU cycles for useful applications. The system achieves increased bandwidth, lower latency, and lower power.

This combination makes it practical to converge other networks that traditionally used niche technologies onto 10GbE. High bandwidth and extremely low latency make 10GbE with protocol offload the best technology for high-performance cluster computing (HPCC) fabrics.

The S310E also accelerates the iSCSI protocol for block-level storage traffic between servers and storage systems. With high-speed iSCSI, 10GbE is now the best technology for storage area networks. The 'Unified Wire' Solution

With the S310E, Chelsio is delivering on the promise of the ‘unified wire,’ enabling the convergence of server networking, storage networking, and cluster computing interconnects onto a single platform and a single fabric. 10Gb Ethernet-only networking reduces the data center’s cost in network adapters, cables, switches, rack space, power, equipment spares, management tools, planning, networking skills, and installation. Fully Featured Server Adapter

The S310E offers best-of-class performance and features, including IP/UDP/TCP checksum and large send offload, rate control and QoS, virtualization, and rule-based traffic steering and filtering.

Third-Generation Protocol Offload Engine The S310E employs Chelsio’s unique third-generation Terminator 3 ASIC, a high-performance, programmable protocol processor. Terminator 3 processes all connections in a single data path to deliver line-rate 10Gbps performance with one connection, up to thousands of connections. In contrast, competitive multi-RISC offload engines, which rely on having enough connections to distribute their processing among parallel processors to achieve full performance, are ultimately limited by the performance of each processor.

Complete and Flexible TCP Offload The Terminator 3 ASIC has hundreds of programmable registers for protocol configuration, RFCs, and offload control. The S310E can offload TCP processing per-connection, per-server, per-interface, and globally and simultaneously tunnel traffic from non-offloaded connections to the host processor for the native TCP/IP stack to process. The S310E provides a flexible zero copy capability for regular TCP connections, requiring no changes to the sender, to deliver line rate performance at minimal CPU utilization.

Upper Layer Protocols The S310E offloads the expensive byte touching iSCSI operations and payload placement to greatly accelerate iSCSI performance for IP SAN applications while maintaining flexibility. The iSCSI protocol itself can be implemented by vendors to provide product differentiation. The S310E also implements a high-capacity, low-latency, high-bandwidth iWARP RDMA/RDDP, which adheres to the IETF standards.

Robust, Proven Solution Subjected to thousands of hours of compatibility testing, over two years of stress testing by severalOEMtest suites and production deployments in servers, storage systems and cluster computing, Chelsio’s robust, stable protocol offload technology delivers proven performance in a wide range of environments. The S310E is generations ahead of competing products.



Host Interface	PCI Express 1.1 x8, x4, x2, x1 MSI-X, MSI and support for legacy pin interrupts
Network Interfaces	10GBASE-SR short-reach optics (850nm) 10GBASE-LR long-reach optics (1310nm) 10GBASE-CX short-reach copper 10GBASE-T
Ethernet	IEEE 802.3ae (10GbE) IEEE 802.1p Priority and 802.1Q VLAN tagging IEEE 802.3x flow control IEEE 802.3ad load-balancing and failover Ether II and 802.3 encapsulated frames Multiple MAC addresses per interface Jumbo Frames up to 9.6Kbytes
Stateless Offloads	TCP checksum offload for IPv4 & IPv6 TCP Segmentation Offload (TSO) for IPv4 & IPv6 Large Send Offload (LSO) for IPv4 & IPv6 UDP checksum offload for IPv4 & IPv6 Receive Side Scaling and packet steering Line rate packet filtering and attack protection
TCP/IP Full Offload	Full TCP implementation including exceptions High performance even during packet loss Extensive RFC compliance, fully featured stack Zero copy on Tx and Rx Direct Data Placement (DDP) Up to 64K simultaneous connections capacity
Integrated Traffic Manager	Multiple Tx & Rx queues with QoS Two separate channels for simultaneous low latency & high bandwidth Per-connection and per-class rate control Packet loss avoidance
Virtualization and Firewall	Rule-based packet steering and filtering capability
iSCSI Acceleration	Full iSCSI initiator and target mode stack Header & Data Digest (CRC) generation & checking PDU recovery Direct Data Placement (DDP)
High Performance RDMA	Ultra-low latency, line rate bandwidth IETF RDDP and RDMAC iWARP compliance APIs: RNIC-PI, kDAPL and OpenFabrics 1.3
Physical and Environmental	Dimensions without bracket: S310E-CR & S310E-CXA : 6.6 in. x 2.5 in. or 16.8 cm x 6.4 cm S310E-BT: 6.6 in. x 4.2 in. or 16.8 cm x 10.7 cm Operating Temp: 0 to 55ºC or 32 to 131ºF Operating Humidity: 5 to 95% Typical power consumption S310E-CR: 16.7W S310E-CXA: 16W S310E-BT: 24W Large Receive Offload (LRO) for IPv4 & IPv6 Airflow: 200 lf/m Shipped with both a full-length bracket (attached) and a low-profile bracket.

   

More detail spec

All OS Drivers Product Brief Adapter-Cable Compatibility Guide T3 Unified Wire Engine White Paper