BCM5706
®
10/100/1000BASE-T TCP OFFLOAD ENGINE, RDMA, ISCSI/ISER AND
ETHERNET CONTROLLER
•Single-chip solution for LAN on Motherboard (LOM) and
Network Interface Card (NIC) applications
•Integrated 10BASE-T/100BASE-TX/1000BASE-T transceivers
•Integrated SerDes (BCM5706S)
•Host interfaces
- PCI v2.3—32/64 bits, 33/66 MHz
- PCI-X v1.0—64 bits, 66/100/133 MHz
•TCP offload engine
•Full “fast Path” TCP offload
•Designed for Microsoft’s TOE Chimney Architecture
•iSCSI controller
•iSCSI initiator
•iSER (iSCSI over RDMA)
•RDMA controller (RNIC)
•RDMA over TCP (iWARP)—RDMAC 1.0 compliant
•Hardware-based data placement in application buffers without
CPU intervention (for User and Kernel modes)
•Other performance features
•TCP, IP checksum
•TCP segmentation
•Adaptive interrupts
•Message Signal Interrupt (MSI) support
•Robust manageability
•PXE 2.0 remote boot
•Alert Standard Format (ASF v1.0) support
•Wake-On L AN
•IPMI 'pass-through' mode
•Statistic gathering (SNMP MIB II, Ethernet like MIB, Ethernet
MIB (802.3x, clause 30))
•Comprehensive diagnostic and configuration software suite
•ACPI 1.1a compliant—power management
•Advanced network features
•Virtual LANs—802.1q VLAN tagging
•Jumbo frames (9 KB)
•802.3x flow control
•Low-power CMOS design
•On-chip power circuit controller
•400-ball 21x21 mm FBGA package
•3.3V I/Os
•JTAG
•Industry’s smallest 10/100/1000 TOE solution—power and
space optimized for LOM and low-profile NIC applications.
•Extremely low CPU utilization for TCP/IP applications
•Host CPU is free to run application code
•Easy integration with Microsoft’s TOE Chimney Architecture
•Accelerated IP-based storage
•Lower CPU utilization for file-level storage protocols such as
CIFS and NFS
•iSCSI functionality with low CPU utilization
•RDMA support for data placement in application buffers
reduces CPU utilization and lowers data transit latencies. The
result is improved application performance and faster user
response time.
• Interoperable with:
•Broadcom’s Gigabit controller family – BCM570x
•Existing Ethernet 10/100/1000 network infrastructure
•Future-proof
•Flexible implementation for TCP, iWARP and iSCSI can
accommodate specification changes and interoperability issues
•Performance-focused – optimized for throughput and CPU
utilization
•Adaptive interrupts
•MSI allows interrupt distribution in a multi-CPU host system
•Support for PCI-X—allows sufficient bandwidth for wire
speed operation
•Robust and highly manageable
•PXE 2.0, ACPI 1.1, Wake-On LAN, ASF 1.0
•Integrated cable testing—link quality, length, pair skew, pair
polarity, pair swap
•IPMI 'pass-through' capability allows on-board management
controllers access to the network in OS-present and OS-absent
states
•Server class reliability, availability and performance features
•Link aggregation and load balancing
- Switch-dependent
•802.3ad (LACP), generic trunking (GEC/FEC)
- Switch and NIC independent
•PCI hot plug
•Low power for zero airflow implementations
•Advanced power management
•Minimal real estate—ideal for LOM
•On-chip power circuit controller
FEATURES SUMMARY OF BENEFITS
OVERVIEW
®
Phone: 949-450-8700
Fax: 949-450-8710
E-mail: info@broadcom.com
Web: www.broadcom.com
BROADCOM CORPORATION
16215 Alton Parkway, P.O. Box 57013
Irvine, California 92619-7013
© 2004 by BROADCOM CORPORATION. All rights reserved.
5706-PB04-R 03/31/04
Broadcom®, the pulse logo, and Connecting everything® are trademarks of Broadcom Corporation and/
or its subsidiaries in the United States and certain other countries. All other trademarks mentioned are the
property of their respective owners.
The BCM5706 provides a fully integrated Layer 4 and Layer 5 solution
- TCP/IP, RDMA and iSCSI 1.0/iSER along with a complete 10/100/
1000BASE-T Gigabit Ethernet, IEEE 802.3 compliant Media Access
Control (MAC) and Physical Layer Transceiver solution for high
performance network applications. By itself the BCM5706 provides a
complete single-chip Gigabit Ethernet NIC with a TCP/IP Offload
Engine, RDMA NIC (RNIC), iSCSI 1.0/iSER HBA or LOM solution.
The BCM5706 is different from other network controllers because it can
process the TCP/IP and relevant L5 protocols on data directly from the
application buffers on the host, therefore relieving the host CPU from
these time-consuming operations. On the receive path, the BCM5706
processes the frame up to the highest layer supported present in it, e.g.,
the BCM5706 processes the frame for RDMA when the frame is an
RDMA frame.
With the appropriate configuration, the BCM5706 can simultaneously
support any two of the following three functions:
•RDMA Network Interface Controller (RNIC)
•iSCSI or iSER Host Bus Adapter
•TOE Chimney enabled network accelerator
Target Applications of the BCM5706
•Gigabit Ethernet NICs and LAN-on Motherboard (LOM)
•ISCSI 1.0 / iSER Host Bus Adapters (HBA)
•RDMA Network Interface Card (RNIC)
RX
TX
25 MHz
10/100/1000
PHY
10/100/1000
MAC
Dual Processor
PLL
LED Control
LED Signals SMB Interface EEPROM Interface
SMBus EEPROM
Control
TCP,
RDMA,
iSCSI
Context
Memory
TCP,
RDMA,
iSCSI
Code
PLL
Memory Controller
Buffer
Memory
PCI/PCI-X PCI/PCI-X
Bus
PCI
Clk
BASE-T BASE-T
BASE-SX
BASE-LX
BASE-SX
BASE-LX
PCI 2.3 Adapters
PCI 2.3 Adapters
PCI 2.3 Adapters
PCI 2.3 LOM
PCI 2.3 LOM
PCI 2.3 LOMPCI
Network Interface Cards (NIC) designs LAN on Motherboard (LOM) designs
10/100/1000 10/100/1000
1000
1000
1000
1000
PCI-X v1.0 Adapters
PCI-X v1.0 Adapters
PCI-X v1.0 Adapters
PCI-X v1.0 LOM
PCI-X v1.0 LOM
PCI-X v1.0 LOM
