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Abstract
The Chelsio dual-port and quad-port Unified Wire adapters for IBM® Intelligent Cluster and IBM iDataPlex™ are 10 Gigabit Ethernet adapter with PCI Express host bus interface optimized for cloud computing, HPC, virtualization, storage, and other data center applications. These adapters are based on fourth-generation (T4) technology from Chelsio, provide the highest 10GbE performance available, and dramatically lower host-system CPU communications overhead with on-board hardware that offloads TCP/IP, iSCSI, FCoE, and iWARP RDMA processing from its host system. As a result, the server can achieve increased bandwidth, lower latency, and lower power consumption.
Note: These adapters are withdrawn from marketing.
Introduction
The Chelsio dual-port and quad-port Unified Wire adapters for IBM® Intelligent Cluster and IBM iDataPlex™ are 10 Gigabit Ethernet adapter with PCI Express host bus interface optimized for cloud computing, HPC, virtualization, storage, and other data center applications. These adapters are based on fourth-generation (T4) technology from Chelsio, provide the highest 10GbE performance available, and dramatically lower host-system CPU communications overhead with on-board hardware that offloads TCP/IP, iSCSI, FCoE, and iWARP RDMA processing from its host system. As a result, the server can achieve increased bandwidth, lower latency, and lower power consumption.
Figure 1 shows the Chelsio T440-CR Quad-Port (SFP+) 10GbE PCI-E 2.0 Adapter.
Figure 1. Chelsio T440-CR Quad-Port (SFP+) 10GbE PCI-E 2.0 Adapter
Did you know?
Chelsio implements the concept of the unified wire, enabling the convergence of server networking, storage networking, and cluster computing interconnects onto a single fabric that enables TCP, UDP, iSCSI, iWARP, and FCoE offload with SR-IOV, EVB/VN Tag, and data center bridging (DCB).
These Chelsio adapters are part of the IBM Intelligent Cluster solution. IBM Intelligent Cluster is your key to a fully integrated HPC solution. IBM clustering solutions include servers, storage, and industry-leading interconnects that are factory-integrated, fully tested, and delivered to your door, ready to plug into your data center, all with a single point of contact for support.
Part number information
Table 1 lists part numbers and feature codes.
Table 1. Ordering part number and feature code
| Description | IBM part number | Feature code | Chelsio part number |
| Chelsio T420-CR Dual-port (SFP+) 10GbE PCI-E 2.0 Adapter | 46M2237 | 3025 | T420-CR |
| Chelsio T420-SO-CR Dual-port (SFP+) 10GbE PCI-E 2.0 Adapter | 81Y8021 | A0R2 | T420-SO-CR |
| Chelsio T440-CR Quad-Port (SFP+) 10GbE PCI-E 2.0 Adapter | 46M2241 | 3026 | T440-CR |
| Chelsio T420-BCH Dual-port 10GbE CFFh Expansion Card | 46M2245 | 3027 | T420-BCH |
Figure 2 shows the Chelsio T420-BCH Dual-port 10GbE CFFh Expansion Card for BladeCenter®.
Figure 2. Chelsio T420-BCH Dual-port 10GbE CFFh Expansion Card
Features
Chelsio is enabling a unified wire for LAN, SAN, and cluster traffic. This unified wire was made possible by the high bandwidth and low latency of 10GbE combined with storage and cluster protocols operating over TCP/IP (iSCSI, FCoE, and iWARP, respectively). In parallel, operating systems and hypervisors have incorporated native support for iSCSI, and database applications now support file-based storage protocols such as NFS as an alternative to SANs. Expanding its unified wire approach, Chelsio has added Fibre Channel over Ethernet (FCoE) hardware support to the new T4-based adapters. FCoE provides a transition path from legacy SANs to converged networks.
Chelsio Unified Wire 10GbE adapters for IBM Intelligent Cluster and iDataPlex have the following features:
- PCI Express Gen2 x8
- Low latency
- Supports up to 1M connections
- Full TCP and UDP offload
- TCP chimney
- Full iSCSI, FCoE offload
- Full iWARP RDMA offload
- EVB, VEPA
- PCI-SIG SR-IOV
- Integrated media streaming offload
- Hardware-based firewall in the cloud
- Traffic filtering and management
Applications
The Chelsio Unified Wire 10GbE adapters are ideally suited for use in the solutions listed below.
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 management features
- QoS and traffic management
Networked storage:
- Enable high-performance NAS systems and Ethernet-based IP SANs.
- Develop shared-storage systems providing both file-level 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.
Comparison of the adapter cards
Table 2 compares the Chelsio Unified Wire 10GbE adapters.
Table 2. Ordering part numbers and feature codes
| Adapter | T420-CR | T440-CR | T420-BCH | T420-SO-CR |
| IBM part number | 46M2237 | 46M2241 | 46M2245 | 81Y8021 |
| Number of ports | 2x 10 G | 4x 10 G | 2x 10 G | 2x 10G |
| Connector type | SFP+ cage | SFP+ cage | BladeCenter CFFh | SFP+ cage |
| Host interface | PCIe x8 Gen 2 | PCIe x8 Gen 2 | PCIe x8 Gen 2 | PCIe x8 Gen 2 |
| Form factor | Low Profile | Half size | BladeCenter CFFh | Low profile |
| Connection capacity | 32 K | 32 K | 32 K | 128 |
| Full TCP offload | Yes | Yes | Yes | Yes |
| Full UDP/multicast offload | Yes | Yes | Yes | No |
| Full iWARP RDMA offload | Yes | Yes | Yes | No |
| Full iSCSI offload | Yes | Yes | Yes | Yes |
| Full FCoE offload | Yes | Yes | Yes | Yes |
| SR-IOV, VEB/VEPA | Yes | Yes | Yes | Yes |
| Op-iSCSI | Yes | Yes | Yes | Yes |
| Op-FCoE | Yes | Yes | Yes | Yes |
| Power | 11.94 W | 12.65 W | 12.60 W | 8.86 W |
| Recommended for | Unified Wire: RDMA, TOE, NIC, iSCSI, FCoE virtualization |
Unified wire: RDMA, TOE, NIC, iSCSI, FCoE virtualization |
Unified Wire: RDMA, TOE, NIC, iSCSI, FCoE virtualization |
Unified Wire: NIC, TOE, iSCSI, FCoE virtualization |
Specifications
The Chelsio Unified Wire 10GbE adapters have the specifications listed below.
Host interface:
- PCI Express Gen2 x8
- MSI-X, MSI, and support for legacy pin interrupts
Network interfaces:
- 10GBASE-SR short-reach optics (850 nm)
- 10GBASE-LR long-reach optics (1310 nm)
High-performance RDMA:
- Low-latency and line-rate bandwidth
- Enhanced RDMA primitives
- iWARP support on Linux OFED
- Microsoft Network Direct support
UDP and multicast offload:
- UDP Sockets API
- Low user-to-user latency
- Multicast replication on ingress or egress
Virtualization:
- PCI-SIG SR-IOV
- 128 virtual functions (VF), 8 PF
- 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 and verification
- Ingress and egress access control list (ACL)
iSCSI acceleration:
- Full iSCSI initiator and target mode stack
- CRC32 offload generation and verification
- iSCSI proxy switching based on SCSI CDB
- Full HBA offload
TCP/IP full offload:
- Full TCP implementation including IPv4 and IPv6
- Microsoft Chimney support
- Extensive RFC compliance, fully featured stack
- Full TCP proxy between any set of connections
- VLAN support of up to 4096 different VLAN IDs
- Load balancing and failover capabilities
Stateless offloads:
- TCP/UDP checksum offload for IPv4 and IPv6
- TSO, LSO, and GSO for IPv4 and IPv6
- VLAN filtering, insertion, and extraction
- Line-rate packet filtering and attack protection
- Fine granularity time stamping (down to 4 ns)
- Ethernet routing (packet header rewrite)
- Packet tracing and packet sniffing
Ethernet standards support:
- 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 9.6 Kbytes
Figure 3 shows the Chelsio T420-CR Dual-port (SFP+) 10GbE PCI-E 2.0 Adapter.
Figure 3. Chelsio T420-CR Dual-port (SFP+) 10GbE PCI-E 2.0 Adapter
Physical and environmental specifications
The specifications are:
- Dimensions without bracket:
- T420-BCH - 4.92" x 6.26" or 12.5 cm x 15.9 cm
- T420-CR - 6.6 in. x 2.71 in. or 16.8 cm x 6.9 cm
- T420-SO-CR - 4.0 in. x 2.7 in. or 10.2 cm x 6.9 cm
- T440-CR - 6.6 in. x 3.95 in. or 16.8 cm x 10.0 cm
- Operating temp: 0 to 55 °C or 32 to 131 °F
- Operating humidity: 5 to 95%
Figure 4 shows the Chelsio T420-SO-CR Dual-port (SFP+) 10GbE PCI-E 2.0 Adapter.
Figure 4. Chelsio T420-SO-CR Dual-port (SFP+) 10GbE PCI-E 2.0 Adapter
Supported servers
The Chelsio Unified Wire 10GbE adapters are supported in the IBM Intelligent Cluster program,, as listed in Table 3.
Table 3. Supported servers in the IBM Intelligent Cluster program
 |
|
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
Chelsio T420-CR Dual-port (SFP+) 10GbE PCI-E 2.0 Adapter |
46M2237 |
Y |
Y |
Y |
Y |
Y |
N |
N |
N
|
N
|
Y
|
Y
|
Chelsio T420-SO-CR Dual-port (SFP+) 10GbE PCI-E 2.0 Adapter |
81Y8021 |
Y |
Y |
Y |
Y |
Y |
N |
N |
N
|
N
|
Y
|
Y
|
Chelsio T440-CR Quad-Port (SFP+) 10GbE PCI-E 2.0 Adapter |
46M2241 |
Y |
Y |
Y |
Y |
Y |
N |
N |
N
|
N
|
Y
|
Y
|
Chelsio T420-BCH Dual-port 10GbE CFFh Expansion Card |
46M2245 |
N |
N |
N |
N |
N |
Y |
Y |
Y
|
Y
|
N
|
N
|
Supported operating systems
The Chelsio adapters support the following operating systems. Support is for both TOE and NIC mode, unless otherwise stated, along with OFED stack, SR-IOV (vNIC), and other functionalities.
- Red Hat Enterprise Linux 5 update 4 kernel (RHEL5.4), 2.6.18-164.el5 (32-bit and 64-bit)
- Red Hat Enterprise Linux 5 update 5 kernel (RHEL5.5), 2.6.18-194.el5 (32-bit and 64-bit)
- Red Hat Enterprise Linux 6 base kernel (RHEL6), 2.6.32-71.el6 (32-bit and 64-bit)
- SUSE Linux Enterprise Server 11 SP1 kernel (SLES11SP1), 2.6.32.12-0.7 (32-bit and 64-bit)
- Windows 7 (32-bit and 64-bit)
- Windows Server 2008 R2 (64-bit)
See the Chelsio driver readme file (bundled with driver and available on the driver download website) for the latest information about the specific versions and service packs that are supported.
Go to http://www.chelsio.com/support for all Chelsio driver downloads.
Related product families
Product families related to this document are the following:
Trademarks
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The following terms are trademarks of Lenovo in the United States, other countries, or both:
Lenovo®
BladeCenter®
The following terms are trademarks of other companies:
Linux® is the trademark of Linus Torvalds in the U.S. and other countries.
Microsoft®, Windows Server®, and Windows® are trademarks of Microsoft Corporation in the United States, other countries, or both.
Other company, product, or service names may be trademarks or service marks of others.
