[P4-arch] Updated invitation: P4 Arch Design WG @ Wed Dec 20, 2017 13:30 - 15:00 (PST) (p4-arch at lists.p4.org)

ccascaval at barefootnetworks.com ccascaval at barefootnetworks.com
Wed Dec 20 00:25:57 EST 2017

This event has been changed.

Title: P4 Arch Design WG
Dear all,

Last meeting of 2017!

Location: Barefoot Networks, 4750 Patrick Henry Drive, Santa Clara, CA.

- Packet truncation support:
   - PSA truncation options https://github.com/p4lang/p4-spec/issues/519,  

Action selector issues:
   - Interaction between direct counters/meters and action profile/selector  
   Previously discussed, need closing:
   - Fungibility of action selector size  
   - Using virtual functions to specify action chosen in action_selector  
   - Liveness of action profile members  
   - Mention anything in PSA about fast-failover aspect of ActionSelector  
extern? https://github.com/p4lang/p4-spec/issues/496

New externs:
   - Dynamic field selection: select a small set of keys from large set of  
keys https://github.com/p4lang/p4-spec/issues/516
   - idle_timeout for table entries: Support table entry idle_timeout in  
PSA? https://github.com/p4lang/p4-spec/issues/523

Document limits on parameter values of PSA externs:
   - Capping the bitwidth of PSA core types to 64  
   - Document any limits on parameter values of Hash extern, and others  
   - PortId_t value documentation: what, if anything, to document in PSA  
about PortId_t values? https://github.com/p4lang/p4-spec/issues/370

Other open issues:
   - Document anything more about congestion-based drop mechanisms in PSA?  
   - State of direct meters and counters when entries are added and removed  
  - Is drop allowed in egress? (only remaining issue is I think creating an  
example suggested by Samar Abdi)  
   - Document effect of multiple pipelines on PSA  
   - Things not in PSA required to fully implement the INT draft  
   - Digest extern small notes https://github.com/p4lang/p4-spec/issues/507
   - Add requirements about control plane API atomicity relative to data  
plane operations https://github.com/p4lang/p4-spec/issues/525
   - Document Checksum clear() method similarly to InternetChecksum clear()  
method? https://github.com/p4lang/p4-spec/issues/521

Dial in information:
Join from PC, Mac, Linux, iOS or Android:  

Or iPhone one-tap (US Toll):  +14086380968,,567864916# or  

Or Telephone:
     Dial: +1 408 638 0968 (US Toll) or +1 646 558 8656 (US Toll)
     Meeting ID: 567 864 916
     International numbers available:  

     SIP: 567864916 at zoomcrc.com

Or Skype for Business (Lync):

Venues will rotate between Barefoot, Cisco and Google.
Agenda, venue address, and Zoom meeting information will be provided as  
part of an invite update.

Thank you for your help and participation.

Andy and Calin (changed)
When: Wed Dec 20, 2017 13:30 – 15:00 Pacific Time
Calendar: p4-arch at lists.p4.org
     * ccascaval at barefootnetworks.com - creator
     * p4-arch at lists.p4.org

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