The CN4054S 4-port and CN4052S 2-port 10Gb Virtual Fabric Adapters are VFA5.2 adapters that are supported on ThinkSystem and Flex System compute nodes. The CN4052S can be divided into up to eight virtual NIC (vNIC) devices per port (for a total of 16 vNICs) and the CN4054S can be divided in to four vNICs (for a total of 16 vNICs). Each vNIC can have flexible bandwidth allocation. These adapters also feature RDMA over Converged Ethernet (RoCE) capability, and support iSCSI, and FCoE protocols, either as standard or with the addition of a Features on Demand (FoD) license upgrade. The adapters are shown in the following figure. The CN4054S and CN4052S look the same.

The CN4054S 4-port and CN4052S 2-port 10Gb Virtual Fabric Adapters are VFA5.2 adapters that are supported on ThinkSystem and Flex System compute nodes.

The CN4052S can be divided into up to eight virtual NIC (vNIC) devices per port (for a total of 16 vNICs) and the CN4054S can be divided in to four vNICs (for a total of 16 vNICs). Each vNIC can have flexible bandwidth allocation. These adapters also feature RDMA over Converged Ethernet (RoCE) capability, and support iSCSI, and FCoE protocols, either as standard or with the addition of a Features on Demand (FoD) license upgrade.

The adapters are shown in the following figure. The CN4054S and CN4052S look the same.

Specifications

The Flex System CN4054S 4-port and CN4052S 2-port 10Gb Virtual Fabric Adapters have the following specifications:

Four (CN4054S) or two (CN4052S) 10 Gb Ethernet ports

Based on the Emulex XE100-P2 series design:

CN4054S: Single XE104-P2 ASIC

CN4052S: Single XE102-P2 ASIC

PCIe Express 3.0 x8 host interface

vNIC (NIC partition) capability

MSI-X support

Lenovo XClarity Administrator support

Power consumption: 25 W maximum

Virtualization features

vNIC partitions with UFP mode

CN4052S: 8 NIC partitions per port, 16 total*

CN4054S: 4 NIC partitions per port, 16 total

vNIC partitions with vNIC2 mode:

CN4052S: 8 NIC partitions per port, 16 total*

CN4054S: 4 NIC partitions per port, 16 total

vNIC partitions with vNIC1 mode:

CN4052S: 4 NIC partitions per port, 8 total

CN4054S: 4 NIC partitions per port, 16 total

Complies with PCI-SIG specification for SR-IOV

VXLAN/NVGRE encapsulation and offload

PCI-SIG Address Translation Service (ATS) v1.0

Virtual Switch Port Mirroring for Diagnostic purposes

Virtual Ethernet Bridge (VEB)

62 Virtual functions (VF)

QoS for controlling and monitoring bandwidth that is assigned to and used by virtual entities

Traffic shaping and QoS across each virtual function (VF) and physical function (PF)

Message Signal Interrupts (MSI-X) support

VMware NetQue / VMQ support

Microsoft VMQ & Dynamic VMQ support in Hyper-V

* 8 NIC partitions per port requires adapter firmware 10.6 or later; UFP mode also requires switch firmware 8.3 or later

Ethernet and NIC features

NDIS 5.2, 6.0, and 6.2 compliant Ethernet functionality

IPv4/IPv6 TCP, UDP, and Checksum Offload

IPv4/IPv6 TCP, UDP Receive Side Scaling (RSS)

IPv4/IPv6 Large Send Offload (LSO)

Programmable MAC addresses

128 MAC/vLAN addresses per port

Support for HASH-based broadcast frame filters per port

vLAN insertion and extraction

9216 byte Jumbo frame support

Receive Side Scaling (RSS)

Filters: MAC and vLAN

PXE Boot support

Remote Direct Memory Access (RDMA):

Direct data placement in application buffers without processor intervention

Supports RDMA over converged Ethernet (RoCE) specifications

Supports RoCE v2 by replacing RoCE over IP with RoCE over UDP

20% more RoCE Queue Pairs than VFA5

16K RoCE Memory Regions (VFA5 offers 8K)

Linux Opens Fabrics Enterprise Distribution (OFED) Support

Low latency queues for small packet sends and receives

Local interprocess communication option by internal VEB switch

TCP/IP Stack By-Pass

Data Center Bridging / Converged Enhanced Ethernet (DCB/CEE):

Hardware Offloads of Ethernet TCP/IP

802.1Qbb Priority Flow Control (PFC)

802.1 Qaz Enhanced Transmission Selection (ETS)

802.1 Qaz Data Center Bridging Exchange (DCBX)

Fibre Channel over Ethernet (FCoE) offload:

Availability:

Standard feature with 01CV780 and 01CV790

Optional feature with 00AG540 and 00AG590 via a Features on Demand upgrade, only supported with Flex System servers (not supported with ThinkSystem compute nodes)

Hardware offloads of Ethernet TCP/IP

ANSI T11 FC-BB-5 Support

Programmable Worldwide Name (WWN)

Support for FIP and FCoE Ether Types

Supports up to 255 NPIV Interfaces per port

FCoE Initiator

Common driver for Emulex Universal CNA and Fibre Channel HBAs

255 N_Port ID Virtualization (NPIV) interfaces per port

Fabric Provided MAC Addressing (FPMA) support

Up to 4096 concurrent port logins (RPIs) per port

Up to 2048 active exchanges (XRIs) per port

FCoE Boot support

iSCSI offload:

Availability:

Standard feature with 01CV780 and 01CV790

Optional feature with 00AG540 and 00AG590 via a Features on Demand upgrade, only supported with Flex System servers (not supported with ThinkSystem compute nodes)

Full iSCSI Protocol Offload

Header, Data Digest (CRC), and PDU

Direct data placement of SCSI data

2048 Offloaded iSCSI connections

iSCSI initiator and concurrent initiator /target modes

Multipath I/O

OS-neutral INT13 based iSCSIboot and iSCSI crash memory dump support

RFC 4171 Internet Storage Name Service (iSNS)

iSCSI Boot support

IEEE Standards supported:

PCI Express base spec 2.0, PCI Bus Power Management Interface, rev. 1.2, Advanced Error Reporting (AER)

802.3-2008 10Gbase Ethernet port

802.1Q vLAN

802.3x Flow Control with pause Frames

802.1 Qbg Edge Virtual Bridging

802.1Qaz Enhanced transmission Selection (ETS) Data Center Bridging Capability (DCBX)

802.1Qbb Priority Flow Control

802.3ad link Aggregation/LACP

802.1ab Link Layer Discovery Protocol

802.3ae (SR Optics)

802.1AX (Link Aggregation)

802.3p (Priority of Service)

802.1Qau (Congestion Notification)

IPV4 (RFQ 791)

IPV6 (RFC 2460)