Comments (1)
This is related to a question raised by Mahesh Shirshyad's proposal for a PNA IP checksum extern object that could have a method, perhaps called something like add_dependency
, where you could have multiple instance of the IP checksum extern object, and make explicit method calls in the P4 source code that declared data dependencies between these objects, e.g. you could do something like this:
PNA_IPChecksum c1();
PNA_IPChecksum c2();
apply {
// other code here to set up parameters for c1 and c2, e.g. perhaps start offset and length parameters.
// in the case that the checksum for c1 included the result of checksum calculation for c2 as part of c1's input data
// we would like to tell the compiler explicitly in code that this was the case, perhaps with a call like this:
c1.add_dependency(c2);
// meaning that c2's result should be calculated first, before c1's checksum calculation could finish.
}
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Related Issues (20)
- Any desire to define behavior of add_on_miss=true table WITHOUT data plane deletions of expired entries? HOT 2
- Create functionally correct example demonstrating IPsec encryption and decryption
- Full payload checksum
- Should PNA support resubmit operation? Also: document details of recirculate operation behavior
- What do crypto offsets apply to? Packet as parsed, or packet after deparsing?
- The types of the generics in crypto_accelerator extern maybe should be a static type instead of a generics
- Add text to PNA specification on encrypt/decrypt operations HOT 4
- Add XOR hash function(s)
- Address the issue of pipelines that can have packets "pass each other up" in the middle of the pipeline HOT 1
- Add text explaining how to delete entries from the dataplane, and describe `ExpireTimeProfileId_t`.
- Minor bug in IPsec example program
- Remove last remaining occurrences of HOST_TO_NET and NET_TO_HOST from spec
- Add glossary, and consider using "inline accelerator" consistently when referring to encrypt/decrypt block
- Devise an explicit convention to document which parts of pna.p4 are intended to be vendor-customizable vs. not
- Proposal for setting packets and bytes counter widths separately HOT 5
- Lack of documentation on the optional bytes counter increment parameter HOT 7
- Should it be possible to recirculate mirrored copies of a packet ? HOT 1
- PNA spec declares headers on deparser are RO HOT 2
- PNA/PSA extern restrictions HOT 6
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