Users Guide

1–Functionality and Features
Features
Doc No. BC0054508-00 Rev. R
January 21, 2021 Page 5 Copyright © 2021 Marvell
Because iSCSI uses TCP as its sole transport protocol, it benefits from hardware
acceleration of the TCP processing. However, iSCSI as a Layer 5 protocol has
additional mechanisms beyond the TCP layer. iSCSI processing can also be
offloaded, thereby reducing CPU utilization even further.
The Marvell 57xx and 57xxx adapters target best-system performance, maintain
system flexibility to changes, and support current and future OS convergence and
integration. Therefore, the adapter's iSCSI offload architecture is unique as
evident by the split between hardware and host processing.
FCoE
FCoE allows Fibre Channel protocol to be transferred over Ethernet. FCoE
preserves existing Fibre Channel infrastructure and capital investments. The
following FCoE features are supported:
 Full stateful hardware FCoE offload
 Receiver classification of FCoE and FCoE initialization protocol (FIP)
frames. FIP is used to establish and maintain connections.
 Receiver CRC offload
 Transmitter CRC offload
 Dedicated queue set for Fibre Channel traffic
 Data center bridging (DCB) provides lossless behavior with priority flow
control (PFC)
 DCB allocates a share of link bandwidth to FCoE traffic with enhanced
transmission selection (ETS)
 Supports Technical Committee T11 Fibre Channel - Link Services (FC-LS)
specification; N_Port ID virtualization (NPIV) on Linux and Windows
Power Management
The adapter speed setting will link at the configured speed for WoL when the
system is powered down.
NOTE
Dell
®
supports WoL on only one adapter in the system at a time.
For specific systems, see your system documentation for WoL support.