Introduction
Rev 1.6
13
Mellanox Technologies
RDMA and RDMA over
Converged Ethernet
(RoCE)
ConnectX-5, utilizing IBTA RDMA (Remote Data Memory Access)
and RoCE (RDMA over Converged Ethernet) technology, delivers low-
latency and high-performance over Band and Ethernet networks.
Leveraging data center bridging (DCB) capabilities as well as Con-
nectX-5 advanced congestion control hardware mechanisms, RoCE
provides efficient low-latency RDMA services over Layer 2 and Layer
3 networks.
Mellanox PeerDirect™
PeerDirect™ communication provides high efficiency RDMA access
by eliminating unnecessary internal data copies between components
on the PCIe bus (for example, from GPU to CPU), and therefore sig-
nificantly reduces application run time. ConnectX-5 advanced accelera-
tion technology enables higher cluster efficiency and scalability to tens
of thousands of nodes.
CPU Offload
Adapter functionality enabling reduced CPU overhead allowing more
available CPU for computation tasks.
Open VSwitch (OVS) offload using ASAP
2(TM)
• Flexible match-action flow tables
• Tunneling encapsulation / decapsulation
Quality of Service (QoS)
Support for port-based Quality of Service enabling various application
requirements for latency and SLA.
Hardware-based I/O
Virtualization
ConnectX-5 provides dedicated adapter resources and guaranteed isola-
tion and protection for virtual machines within the server.
Storage Acceleration
A consolidated compute and storage network achieves significant cost-
performance advantages over multi-fabric networks. Standard block
and file access protocols can leverage RDMA for high-performance
storage access.
• NVMe over Fabric offloads for target machine
• Erasure Coding
• T10-DIF Signature Handover
SR-IOV
ConnectX-5 SR-IOV technology provides dedicated adapter resources
and guaranteed isolation and protection for virtual machines (VM)
within the server.
High-Performance
Accelerations
• Tag Matching and Rendezvous Offloads
• Adaptive Routing on Reliable Transport
• Burst Buffer Offloads for Background Checkpointing
a. This section describes hardware features and capabilities. Please refer to the driver release notes for feature availabil-
ity. See
.
Table 5 - Features
a
