P4CG2BPi81 Bypass Server Adapter

Dual port Fiber 100 Gigabit Ethernet PCI Express Gen 4.0 Bypass Server Adapter Intel® E810 based

Enhance Your Network Performance with Silicom’s 100G Intel® E810 Based Server Adapter

Silicom’s P4CG2BPi81 100 Gigabit Ethernet PCI Express Bypass Server Adapter Intel® E810 based is designed for Servers and high-end appliances. The Silicom’s P4CG2BPi81 Bypass Server Adapter 100G Intel® E810 based offer simple integration into any PCI Express X16 to 100 Gigabit Networks.

The performance is optimized so that system I/O is not the bottleneck in high-performance networking applications. The Silicom’s P4CG2BPi81 Bypass server adapter is targeted to inline network system that maintains network connectivity when system fails.

Flexible Modes of Operation: Normal, Bypass, and Disconnect on Silicom’s P4CG2BPi81 Adapter

The Silicom’s P4CG2BPi81 Bypass Server Adapter 100 Gigabit Ethernet PCI-e is based on Intel E810-CAM2 Ethernet controller with fully integrated two 100G Ethernet Ports, enhanced programmable packet processing pipeline, virtualization (Enhanced SR-IOV support with up to 256 VFs, backward compatibility VF driver support), new features for the communications market (fine grained scheduler, transmit head drop support, adjustment of credits according to different headers, enhanced QoS, enhanced burst control) and RDMA (iWARP and RoCEv2).

Silicom’s P4CG2BPi81 Bypass Server Adapter 100 Gigabit Ethernet supports Normal, Bypass and Disconnect modes. In Normal mode, the ports are independent interfaces. In Bypass mode, all packets received from one port are transmitted to the adjacent port. In Disconnect mode, the adapter simulates switch / rout cable disconnection.

Silicom’s 100 Gigabit Ethernet PCI-Express Bypass NICs: The Ideal Solution for High-Performance Servers

Silicom’s P4CG2BPi81 Bypass Server Adapter can Bypass or disconnect its Ethernet ports on a host system failure, power off, or upon software request.

In Bypass mode, the connections of the Ethernet ports are disconnected from the system and switched over to the other port to create a crossed connection loop-back between the Ethernet ports. Hence, in bypass mode all packets received from one port are transmitted to the adjacent port and vice versa. This feature enables to bypass a failed system and provides maximum up time for the network.

Silicom’s P4CG2BPi81 Bypass Server Adapter Intel® E810 based includes an on board WDT (Watch Dog Timer) controller. The adapter’s software drivers or software application can write commands to the on board WDT controller. The adapter’s software drivers, WDT controller and the Bypass circuitry provide an interface that control and manage the mode of the adapter.

Silicom’s 100 Gigabit Ethernet PCI-Express Bypass NICs are the ideal solution for implementing multiple network segments, mission-critical high-powered networking applications and environments within high performance servers.

Optimized to work with Intel Xeon Scalable processor.

P4CG2BPi81 Bypass Server Adapter

Dual port Fiber 100 Gigabit Ethernet PCI Express Gen 4.0 Bypass Server Adapter Intel® E810 based

Bypass / Disconnect:

• Bypass / Disconnect Ethernet ports on Power Fail, System Hangs or Software Application Hangs.
• Software programmable Bypass, Disconnect or Normal Mode.
• On Board Watch Dog Timer (WDT) Controller.
• Software programmable time out interval.
• Software Programmable WDT Enable / Disable counter.
• Software programmable Bypass Capability Enable / Disable.
• Software Programmable Disconnect Capability Enable / Disable.
• Software Programmable mode (Bypass, Normal or Disconnect mode) at Power up.
• Software Programmable mode (Bypass, Normal mode) at Power off.
• Independent Bypass operation in every two ports.
• Emulates standard NIC

LAN and Virtualization Features:

• 100Gbps throughput (each of Tx and Rx)
• Parses up to 504B from packet header
• 768 switch ports (VSIs)
• Programmable forwarding rules
• Virtualization
  • Host virtualization via VMQ and SR-IOV
  • 256 SR-IOV Virtual Functions
  • Stateless offloads for tunneled packets (network virtualization support)
  • Malicious VF protection
• RDMA
  • iWARP and RoCE v2
  • 256K Queue Pairs (QPs)
  • Send Queue Push Mode
• QoS
  • WFQ Transmit scheduler with 9 programmable layers
  • Pipeline sharing and starvation avoidance
  • Up to 32 Congestion Domains in the Tx and Rx paths
  • QoS via 802.1p PCP or Differentiated services DSCP value
  • Rx Packet buffer supports at least 3 no-drop flow control events, shared among ports

Host Interface:

• PCIe x16 lanes from/to host via gold fingers of edge card
• Support PCI Express Base Specification Revision 4.0, 16GT/s, 8GT/s, 5GT/s or 2.5GT/s

P4CG2BPi81 Bypass Server Adapter

Dual port Fiber 100 Gigabit Ethernet PCI Express Gen 4.0 Bypass Server Adapter Intel® E810 based

Functional Description

Normal/Bypass/Disconnect Mode of operation
Silicom’s Bypass adapter supports the following mode states: Normal/inline, Bypass/Fail-To-Wire and Disconnect modes.

Normal/Inline mode
In Normal mode, the ports are independent interfaces (see Figure 1: Normal mode, one Bypass pair is illustrated).

Figure 1: Normal Mode Functional Block Diagram

Bypass/Fail-To-Wire mode
In Bypass mode, the connections of the Ethernet network ports are disconnected from the interfaces and switched over to the other port to create a crossed connection loop-back between the Ethernet
ports. The connections of the interfaces are left unconnected. (See Figure 2: one Bypass pair illustrated)

Figure 2: Bypass Mode Functional Block Diagram

Disconnect mode
In Disconnect mode, the transmit connections of the interfaces are disconnected from the ports. The switch / router connected to the adapter does not detect link partner (See Figure 3):

Bypass/Disconnect Features

Silicom Bypass server adapters include an on board Controller that can Bypass the Ethernet ports on host system failure like Power Off, System hangs or software application hangs. The software programmable Watch Dog Timer (WDT) Controller detects a host system fails and it will Bypass automatically the Ethernet ports after programmable time out interval. The WDT Controller can be software programmable enabled or disabled.

The drivers of the adapters and the Bypass circuitry provides an interface that control and management the mode of the adapter. The adapter software driver or software application can writes commands to the on board controller. The on board controller processes the commands and activates the bypass circuitry accordingly.

After power up the default mode of the adapter is to be in Bypass mode. After driver is loaded, the adapter software driver or application can set the card to a Normal mode. After the Host system issues reset, setting of Bypass controller and circuitry are reserved.

Silicom’s Bypass server adapter supports software programmable to select Normal, Bypass or Disconnect modes.

Silicom’s Bypass adapters supports Disable Bypass, Disable Disconnected capabilities; hence, if those adapters receive Disable Bypass capability / Disable Disconnect commands, the adapter does not Bypass / does not Disconnect its Ethernet ports, The Disable Bypass Capabilities are reserved also after power off. This feature enables to emulate a standard NIC.

Key Features

• All modes of operation are fully software configured with a well-defined and easy to use API.
• Disable bypass/Disconnect for a standard NIC emulation and operation, retained even with power cycle
• Range of Watchdog timer timing, configurable for detecting appliance failure.
• Watchdog timer reset function by application or self-reset by the product bypass driver
• Easy to read product status and product features capabilities
• Fast switching between mode with less than 10mS of transit time
• Compatible with all Silicom bypass products, one driver set and command set for all products.

P4CG2BPi81 Bypass Server Adapter

Dual port Fiber 100 Gigabit Ethernet PCI Express Gen 4.0 Bypass Server Adapter Intel® E810 based

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