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SERVER

OCP NIC Community Update�October 2022

��Sub-group Project wiki: https://www.opencompute.org/wiki/Server/Mezz�

Mailing List: https://ocp-all.groups.io/g/OCP-NIC

NIC3.0

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Agenda

OCP Global Summit 2022 Workshop
OCP Experience Lab 2022
SI Test Fixture Update
Thermal Test Fixture Update
OOB speed comparison between OCP NIC 3.0 & PCIe CEM
Heads-up

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OCP Global Summit 2022

Thanks for submitting the final presentations on time
TSFF test fixture topic will not be presented in workshop but targeting Nov’22 monthly call

ID	Title
2841	OCP NIC 3.0 Design Specification Update
2788	Leveraging Existing OCP NIC Interconnect for PCIe Gen 6 Architectures.
2617	OCP NIC 3.0: Present and The Future
2683	Advanced thermal testing and characterization for pluggable IO
2705	New TSFF test fixture airflow measurements and definitions
2783	SmartNIC & OCP NIC-3 in Modular Hardware Systems (DC-MHS)

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OCP Experience Lab in OCP Summit

Amphenol, Broadcom, Meta & TE Connectivity in OCP NIC 3.0 demo booth

Various servers
NICs
Connector & Cables

Please visit and support us during OCP summit

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PCIe^® 5.0 SI Test Fixtures

CLB 5.0 32GT/s status:

Based on 4.0 design
Protos arrived Sept 1^st

Dell: impedance mismatch results; re-test next wk
Tek: performed initial tests (David Bouse)

CBB 5.0 32GT/s status:

Based on 4.0 design
Updates to align with PCI-SIG^®
Netlist reviewed
ECAD parts placed; route tuning waiting on CLB verify

OCP NIC 3.0 SFF CLB 5.0 prototype

Calibration

CLB board 1

Impedance Coupon

CLB board 2

Jason

OCP NIC 3.0 SFF CBB 5.0 block diagram

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TTF was designed to support speeds up to PCIe® 5.0 32GT/s

Uses very low-loss material

Cable assembly must be updated for 32GT/s signaling transmission

Received cable assemblies from two vendors
Lab experimentation requires NIC 3.0 PCIE Gen5 unit
NVIDIA sending samples to Dell for test

PCIe® 5.0 Thermal Test Fixture (TTF)

OCP NIC 3.0 TTF in use

Example cable assembly from Samtec

Jason

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PCIe CEM 6.0 rev0.5 addition

Added USB2.0 & I3C interfaces

Get the spec in https://members.pcisig.com/wg/PCI-SIG/document

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Out-of-band Interface Speed Comparison

No RMII

No I3C

No RMII

No USB2.0

No I3C

Mb/s

OCP NIC 3.0 & PCIe CEM 6.0 match in top OOB speeds
OCP NIC has gaps between 1Mb/s & 25Mb/s range
Do we see use-case with I3C?

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Heads-up

We are checking CLK/PERST# mapping intent and its accuracy offline. Some discrepancy between tables & diagrams were feedback

May have meeting or continue in email mode
Contact Intel/Thomas or Meta/Damien if you want to be added for discussion
Will report findings in monthly meeting if you just want to know the outcome/results

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