DASH Workgroup Meeting Minutes 8/9/2023

[Kristina Moore]

Hello DASH Community –thank you for contributing your time last Wednesday. 

This week we had 2 new members join the call:

               Jeevan and mxiao, both at - Arista

NVidia and the Community revisited the ACL Tags conversation, deriving from the memory consumption improvement (or not) that they experienced, and a discussion of whether these tags are needed in SAI.  The consensus was to keep SAI clean, and that these are not needed.  Kristina opened Issue421 to remove this from P4.  Next week perhaps we can    look at closed/merged items w/@Kamil Cudnik (sync_d & libsai, etc…).

Detailed PRs and weekly meeting notes follow below…

As always, with respect to any of our DASH meetings High Availability (Tuesdays), Community (Wednesdays), or Behavioral Model (Thursdays) – please let me know if there are PRs, Q&A, or items you would like to discuss or present. 

The DASH YouTube channel link is here to subscribe / access WG content (and click the bell to receive notifications). 

See you on 8/16/2023

Meeting Title:  SONiC-DASH-Workgroup Community Meeting #79

Attendees (25):

DASH Group to join: https://groups.google.com/g/sonic-dash     

DASH-Test-Workgroup Group to join: https://groups.google.com/g/sonic-dash-test-workgroup

 

Agrawal, Ashutosh - Intel	Fingerhut, John Andy - Intel	Marian Pritsak - NVidia	Oleksandr Ivantsiv - NVidia	Veerappan, Senthilnathan - AMD
Alberto Villarreal - Keysight	Jeevan - Arista	Mircea Dan Gheorghe - Keysight	Saad Mazhar - DreamBig Semi	Vijay Srinivasan - AMD
Amith Gorthi Sriniva Prabhakara Narasimha - Keysight	John C Carney - XSightLabs	Murali - Cisco	Shah, Shitanshu - Intel	Vincent Legrand - XSightLabs
Andriy Kokhan - PLVision	Kristina Moore -MSFT	murali Venkateshaiah - Cisco	Sid (Guest)	Yakiv Huryk - NVidia
Chris Sommers - Keysight	Kumaresh Perumal - MSFT	mxiao - Cisco	Sudarshan, Reshma - Intel	Yusef Skinner - MSFT

 

Discussion - PRs/Issues/Documentation for review, comments, suggestions

 

DASH Community Upcoming Project Action Items

 

 

 

 

Discuss:

 

ACL Tags - cont'd  Remove tags requirement in SAI APIs SB (OrchAgent implementation)

Related PRs and Issues

https://github.com/sonic-net/DASH/pull/336/files
https://github.com/sonic-net/DASH/issues/401
https://github.com/sonic-net/SONiC/pull/1427

On SAI level, savings are negligible…

 

Do we need these in SAI?  Let's check w/all technology providers :)

XSight would be ok w/not part of SAI, or either way (Vincent guidance to be careful w/optional)

AMD was not reliant on tags
Intel is ok with this

NVidia ok

 

Does P4 need to be updated to remove SAI?  Kristina to opened Issue421 to remove from P4.

 

 

 

 

Other Notes:
Kamil uplifting libsai, longterm goals to make SONiC instance that includes DASH behavioral model

Fix APIs and reconcile small shortcomings

Chris reviewing PRs, checking CI pipeline

If he requests review, please help out

 

If anyone has 'Stale' branches, please tidy them or bring to Kristina or Chris' attention

 

Introduction/Welcome: 

Jeevan - Arista
mxiao - Arista

 

Next Week:

 

Look at closed/merged items w/Kamil (sync_d & libsai)

 

 

                  

Sticky for Links/Data:
DASH Groups to join to receive Invites, Meeting Notes, and Comms	DASH: https://groups.google.com/g/sonic-dash       DASH-Test-Workgroup Group: https://groups.google.com/g/sonic-dash-test-workgroup	If anyone knows other people who would like info re: our community, please have them joins these groups for receive Comms, etc…
Links to Recording	Teams/Sharepoint: SONiC-DASH Workgroup Community Meeting-20230809_090338-Meeting Recording.mp4   YouTube: https://youtu.be/8uX72f5XIAM - Wed Community Call HA Calls suspended Thursday Behavioral Model Call super short this week	8/9/2023 Community Call; please request access via the link if you are not able to view/listen
Azure DASH GitHub Repo:	https://github.com/sonic-net/DASH
Test/Docs folder:	https://github.com/Azure/DASH/blob/main/test/docs/dash-test-workflow-saithrift.md	Ideal test workflow is here, converted to .md
SAI Thrift	SAI Thrift PR	Client server needed for testing
P4	https://opennetworking.org/p4/ and https://p4.org/working-groups/	Open source, domain-specific programming language for network devices, specifying packet processing for data plane devices (switches, routers, NICs, filters, etc.)
PINS	https://opennetworking.org/pins/
PNA consortium spec	https://p4.org/p4-spec/docs/PNA-v0.5.0.html	An architecture describing the structure and common capabilities of network interface controller (NIC) devices which process packets transiting one or more interfaces and a host system. Describes the structure and capabilities of the pipeline, and a user program, which specifies the functionality of the programmable blocks within that pipeline. For more information, see the P4 Language Consortium specifications
IPDK	Infrastructure Programmer Development Kit (ipdk.io) and https://github.com/ipdk-io/ipdk-io.github.io	IPDK is an open source, vendor agnostic framework of drivers and APIs for infrastructure offload and management which runs on a CPU, IPU, DPU or switch. IPDK runs in Linux and uses a set of well-established tools such as DPDK and P4 to enable network virtualization.
bmv2	https://github.com/p4lang/behavioral-model	The second version of the reference P4 software switch, nicknamed bmv2 (for behavioral model version 2). The software switch is written in C++11. It takes as input a JSON file generated from your P4 program by a P4 compiler and interprets it to implement the packet-processing behavior specified by that P4 program
DPDK	https://www.dpdk.org/	DPDK is the Data Plane Development Kit which consists of libraries to accelerate packet processing workloads running on a wide variety of CPU architectures.

     

 

Thank you again for your participation…

Kristina Moore MBA, M.S., CISSP - Azure Core Principal PM / DASH
Office: 425-722-7720     Mobile: 425-876-2040     Email: kri...@microsoft.com
DASH Group to join: https://groups.google.com/g/sonic-dash    
DASH-Test-Workgroup Group to join: https://groups.google.com/g/sonic-dash-test-workgroup

 

 

[Kamil Cudnik]

Sure, I can talk about my changes 😉