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p4lang / p4c

P4_16 reference compiler
https://p4.org/
Apache License 2.0
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How often we sync p4's pna.p4 with pna repo ? #4854

Open kamleshbhalui opened 2 months ago

kamleshbhalui commented 2 months ago

I can see that there many new addition to pna.p4 in https://github.com/p4lang/pna. Is there any guideline how often do we update this?

ChrisDodd commented 2 months ago

They should be kept in sync as often as necessary and possible,

jafingerhut commented 2 months ago

@kamleshbhalui Often sync'ing is not as straightforward as just copying the latest file and checking it in. It often requires updates to the PNA implementation using it, and not all of the PNA implementations in the p4c repo are equal in feature support, nor are they necessarily updated at the same time.

qobilidop commented 2 months ago

I've been thinking about this and proposed https://github.com/p4lang/p4c/pull/4752 as a potential way to make it clearer which specific version of PNA each P4C backend is actually supporting, and what backend-specific customizations they have done.