T420-CX - Chelsio Communications

T420-CX

High Performance, Dual Port

10GbE Unified Wire Adapter

Enables TCP, UDP, iSCSI, iWARP, and FCoE Offload over

Single Unified Wire with SR-IOV, EVB/VNTag, DCB

Highlights

 PCI Express Gen2 x8

 Low Latency

 Supports Up to 1M connections

 Full TCP & UDP offload

 TCP Chimney

 Full iSCSI, FCoE offload

 Full iWARP RDMA offload

 EVB, VEPA, Flex10, VNTag

 PCI-SIG SR-IOV

 Integrated media streaming offload

 HW based firewall in the cloud

 Traffic filtering & management

Applications

Data-Center Networking

 Scale up servers and NAS systems

 Link servers in multiple facilities to

synchronize data centers

 Consolidate LAN, SAN, and cluster

networks

Cloud Computing

 Virtualization features to maximize

cloud scaling and utilization

 Runs InfiniBand, Fibre Channel apps

unmodified on Ethernet

 Cloud ready functional and man-

agement features

 QoS and Traffic management

Networked Storage

 Enable high performance NAS sys-

tems and Ethernet-based IP SANs

 Develop shared-storage systems

providing both file- and block-level

services

High Performance Computing

 Very low latency Ethernet

 Increase cluster fabric bandwidth

 Deploy Ethernet-only networking

for cluster fabric, LAN, and SAN

Chelsio Communications www.chelsio.com sales@chelsio.com +1-408-962-3600

The fourth-generation (T4) tech-

nology from Chelsio provides

the highest 10GbE performance

available and dramatically lowers

host-system CPU communica-

tions overhead with on-board

hardware that off-loads TCP/IP,

iSCSI, FCoE and iWARP RDMA

processing from its host system.

T420-CX frees up host CPU cycles

for useful applications. The sys-

tem achieves increased band-

width, lower latency, and lower

power.

Overview

Chelsio’s T420-CX is a dual port 10 Gigabit Ethernet Unified Wire adap-

ter with PCI Express 2.0 host bus interface, optimized for cloud compu-

ting, HPC, virtualization, storage, and other data center applications.

The Unified Wire Solution

With the T420-CX, Chelsio is enabling a unified wire for LAN, SAN and

cluster traffic. This unified wire was made possible by the high band-

width and low latency of 10GbE combined with storage and cluster pro-

tocols operating over TCP/IP (iSCSI, FCoE and iWARP respectively).

In parallel, operating systems and hypervisors have incorporated native

support for iSCSI and database applications are now supporting file-

based storage protocols such as NFS as an alternative to SANs.

T420-CX includes a full-fledged integrated Traffic Manager for robust

flow control, traffic management and QoS.

Fibre Channel over Ethernet (FCoE) provides a transition path from leg-

acy SANs to converged networks. Expanding its unified wire approach,

Chelsio has added FCoE hardware support to the new T420-CX adapter.

The adapter’s two ports and IEEE 802.3ad link aggregation/failover fea-

tures are ideal for critical network applications that require redundancy

and high-availability capabilities.

T420-CX 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.

INFORMATION IN THIS DOCUMENT IS PROVIDED IN CONNECTION WITH CHELSIO PRODUCTS. NO LICENSE, EXPRESS OR IMPLIED, BY ESTOPPEL OR

OTHERWISE, TO ANY INTELLECTUAL PROPERTY RIGHTS IS GRANTED BY THIS DOCUMENT. EXCEPT AS PROVIDED IN CHELSIO’S TERMS AND CONDI-

TIONS OF SALE FOR SUCH PRODUCTS, CHELSIO ASSUMES NO LIABILITY WHATSOEVER, AND CHELSIO DISCLAIMS ANY EXPRESS OR IMPLIED WAR-

RANTY, RELATING TO SALE AND/OR USE OF CHELSIO PRODUCTS INCLUDING LIABILITY OR WARRANTIES RELATING TO FITNESS FOR A PARTICULAR

PURPOSE, MERCHANTABILITY, OR INFRINGEMENT OF ANY PATENT, COPYRIGHT OR OTHER INTELLECTUAL PROPERTY RIGHT. CHELSIO PRODUCTS

ARE NOT INTENDED FOR USE IN MEDICAL, LIFE SAVING, OR LIFE SUSTAINING APPLICATIONS. CHELSIO MAY MAKE CHANGES TO SPECIFICATIONS

AND PRODUCT DESCRIPTIONS AT ANY TIME, WITHOUT NOTICE.

T4 - Fourth-Generation Protocol Offload Engine

The T4 is Chelsio’s fourth‐generation TCP offload (TOE) design,

third‐generation iSCSI design, and second‐generation iWARP (RDMA)

implementation. For the server connection, the T4 chip includes a PCI

Express v2.0 ×8 host interface. With support for the 5Gbps Gen2 data

rate, the PCIe interface provides up to 32Gbps of bandwidth to the

server. T4 also adds support for PCIe I/O virtualization. Most of T4

features are enhanced versions of those found in T3. Features that

carry over from T3 include stateless offloads, packet filtering (fire-

wall offload), and traffic shaping (media streaming).

Robust, Proven Solution

Subjected to thousands of hours of compatibility testing, over mul-

tiple years of stress testing by several OEM test suites and produc-

tion 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 T420-CX is gen-

erations ahead of competing products.

Physical and Environmental

 Dimensions without bracket:

 6.6 in. x 2.71 in. or 16.76 cm x 6.88 cm

 Operating Temp: 0 to 55ºC or 32 to 131ºF

 Operating Humidity: 5 to 95%

 Typical power consumption: 12W

Software Drivers

Chelsio offers a full suite of protocol software and drivers with the

T420-CX adapters. See www.chelsio.com/support for latest info. The

software supports operation in both protocol-offload and non-

offload modes.

Chelsio Communications www.chelsio.com sales@chelsio.com +1-408-962-3600

PB20X-Q111

Packet Switching and Routing

T420-CX integrates a high performance packet switch, which allows

switching traffic from any of the input ports to any of the output

ports (wire-to-wire) and from any of the output ports to any of the

input ports (host-to-host).

Ordering info

Model: T420-CX

Physical interface: 10GBASE-CX4

Connector: CX4

Media: CX4 copper*

Accessories

CX4CABLE3M CX4 copper cable, 10GBASE-CX4, 3-meter

CX4CABLE15M CX4 copper cable, 10GBASE-CX4, 15-meter

*Supports active optical cables with distances up to 100 meters.

Complete and Flexible TCP Offload

The T4 has hundreds of programmable registers for protocol confi-

guration, RFCs, and offload control. The T420-CX 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 T420-

CX provides a flexible zero copy capability for regular TCP connec-

tions, requiring no changes to the sender, to deliver line rate per-

formance at minimal CPU utilization.

Specifications

Host Interface

 PCI Express Gen2 x8

 MSI-X, MSI and support for legacy pin interrupts

High Performance RDMA

 Low latency and line rate bandwidth

 Enhanced RDMA primitives

 iWARP support on Linux OFED

 Microsoft Network Direct support

UDP & Multicast Offload

 UDP Sockets API

 Low user-to-user latency

 Multicast replication on ingress or egress

Virtualization

 PCI-SIG SR-IOV

 128 Virtual and 8 Physical functions

 144 port virtual switch

 EVB, VEPA, Flex10, VNTag

 336 virtual MAC addresses

FCoE

 Full HBA FCoE (Initiator or Target)

 Open-FCoE Offload (Initiator)

 CRC32 offload generation & verification

 Ingress & Egress ACL (Access Control List)

iSCSI Acceleration

 Full iSCSI initiator and target mode stack

 CRC32 offload generation & verification

 iSCSI proxy switching based on SCSI CDB

 Full HBA offload

TCP/IP Full Offload

 Full TCP implementation including IPv4 & IPv6

 Microsoft Chimney support

 Extensive RFC compliance, fully featured stack

 Full TCP Proxy between any set of connections

 VLAN support up to 4096 different VLAN IDs

 Load balancing and Fail-over capabilities

Stateless Offloads

 TCP/UDP checksum offload for IPv4 & IPv6

 TSO, LSO, and GSO for IPv4 & IPv6

 VLAN filtering, insertion & extraction

 Line rate packet filtering and attack protection

 Fine granularity time stamping (down to 4ns)

 Ethernet Routing (packet header rewrite)

 Packet Tracing and Packet Sniffing

Ethernet

 IEEE 802.3ae (10 GbE)

 IEEE 802.3z (1 GbE) compliant

 IEEE 802.IP priority

 IEEE 802.IQ VLAN tagging

 IEEE 802.1Qbg EVB/VEPA

 IEEE 802.1Qbh VNTag

 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