Context

The goal of this milestone is to start the integration of the DAL in Etherlink kernel and sequencer with the simplest possible integration under a feature flag. In this minimalist integration, the sequencer publishes at most one DAL slot per L1 level on a fixed slot index and this DAL slot contains a single blueprint chunk. At each level, the kernel eagerly tries to import the chunck from the DAL at a fixed offset from the current level.

Work breakdown

• Let the rollup node publish DAL slots

  • (Mohamed, days) Rollup node supports injecting DAL slots (Taken from Eat-your-DAL commit !11943 (1d7af74e)) (!13635 (merged))
  • (Mohamed, hours) Add events in rollup node's DAL queue injector (!13761 (merged))
  • (Mohamed, days) Add a Tezt test (still flaky) (!13818 (merged))

• Add a enable_dal feature flag in the Etherlink kernel. When set to true, data are imported from the DAL.

  • (Raphaël, days) Make DAL host functions available to Etherlink kernel: !13762 (merged)
  • (Raphaël, days) Add the feature flag: !13634 (merged)
  • (Raphaël, days) Extend sequencer configuration with DAL slot indices to use: !13717 (merged)
  • (Raphaël, days) Implement DAL host functions in the mockup of the Kernel SDK: !14143 (merged) (taken from !13846 (merged))
  • (Raphaël, days) Run a DAL node in Tezt tests: !14146 (merged)
  • (Raphaël, days) Reveal DAL parameters in the Etherlink kernel: !13678 (merged)
  • Add DAL config to sequencer config (!14087 (merged))
  • (Raphaël, days) Reveal DAL pages in the Etherlink kernel and parse it as a blueprint message: !13883 (merged)
    • (Raphaël, days) Debug failing tests !14274 (closed)
  • Activate DAL tests !14067 (merged)

Deliverable

• Manual end-to-end test: the sequencer uses the DAL to inject at least one blueprint chunk; which is successfully applied in the Etherlink kernel.