(imported from https://github.com/paritytech/cumulus/pull/2157)
## Changes
This MR refactores the XCMP, Parachains System and DMP pallets to use
the [MessageQueue](https://github.com/paritytech/substrate/pull/12485)
for delayed execution of incoming messages. The DMP pallet is entirely
replaced by the MQ and thereby removed. This allows for PoV-bounded
execution and resolves a number of issues that stem from the current
work-around.
All System Parachains adopt this change.
The most important changes are in `primitives/core/src/lib.rs`,
`parachains/common/src/process_xcm_message.rs`,
`pallets/parachain-system/src/lib.rs`, `pallets/xcmp-queue/src/lib.rs`
and the runtime configs.
### DMP Queue Pallet
The pallet got removed and its logic refactored into parachain-system.
Overweight message management can be done directly through the MQ
pallet.
Final undeployment migrations are provided by
`cumulus_pallet_dmp_queue::UndeployDmpQueue` and `DeleteDmpQueue` that
can be configured with an aux config trait like:
```rust
parameter_types! {
pub const DmpQueuePalletName: &'static str = \"DmpQueue\" < CHANGE ME;
pub const RelayOrigin: AggregateMessageOrigin = AggregateMessageOrigin::Parent;
}
impl cumulus_pallet_dmp_queue::MigrationConfig for Runtime {
type PalletName = DmpQueuePalletName;
type DmpHandler = frame_support::traits::EnqueueWithOrigin<MessageQueue, RelayOrigin>;
type DbWeight = <Runtime as frame_system::Config>::DbWeight;
}
// And adding them to your Migrations tuple:
pub type Migrations = (
...
cumulus_pallet_dmp_queue::UndeployDmpQueue<Runtime>,
cumulus_pallet_dmp_queue::DeleteDmpQueue<Runtime>,
);
```
### XCMP Queue pallet
Removed all dispatch queue functionality. Incoming XCMP messages are now
either: Immediately handled if they are Signals, enqueued into the MQ
pallet otherwise.
New config items for the XCMP queue pallet:
```rust
/// The actual queue implementation that retains the messages for later processing.
type XcmpQueue: EnqueueMessage<ParaId>;
/// How a XCM over HRMP from a sibling parachain should be processed.
type XcmpProcessor: ProcessMessage<Origin = ParaId>;
/// The maximal number of suspended XCMP channels at the same time.
#[pallet::constant]
type MaxInboundSuspended: Get<u32>;
```
How to configure those:
```rust
// Use the MessageQueue pallet to store messages for later processing. The `TransformOrigin` is needed since
// the MQ pallet itself operators on `AggregateMessageOrigin` but we want to enqueue `ParaId`s.
type XcmpQueue = TransformOrigin<MessageQueue, AggregateMessageOrigin, ParaId, ParaIdToSibling>;
// Process XCMP messages from siblings. This is type-safe to only accept `ParaId`s. They will be dispatched
// with origin `Junction::Sibling(…)`.
type XcmpProcessor = ProcessFromSibling<
ProcessXcmMessage<
AggregateMessageOrigin,
xcm_executor::XcmExecutor<xcm_config::XcmConfig>,
RuntimeCall,
>,
>;
// Not really important what to choose here. Just something larger than the maximal number of channels.
type MaxInboundSuspended = sp_core::ConstU32<1_000>;
```
The `InboundXcmpStatus` storage item was replaced by
`InboundXcmpSuspended` since it now only tracks inbound queue suspension
and no message indices anymore.
Now only sends the most recent channel `Signals`, as all prio ones are
out-dated anyway.
### Parachain System pallet
For `DMP` messages instead of forwarding them to the `DMP` pallet, it
now pushes them to the configured `DmpQueue`. The message processing
which was triggered in `set_validation_data` is now being done by the MQ
pallet `on_initialize`.
XCMP messages are still handed off to the `XcmpMessageHandler`
(XCMP-Queue pallet) - no change here.
New config items for the parachain system pallet:
```rust
/// Queues inbound downward messages for delayed processing.
///
/// Analogous to the `XcmpQueue` of the XCMP queue pallet.
type DmpQueue: EnqueueMessage<AggregateMessageOrigin>;
```
How to configure:
```rust
/// Use the MQ pallet to store DMP messages for delayed processing.
type DmpQueue = MessageQueue;
```
## Message Flow
The flow of messages on the parachain side. Messages come in from the
left via the `Validation Data` and finally end up at the `Xcm Executor`
on the right.
## Further changes
- Bumped the default suspension, drop and resume thresholds in
`QueueConfigData::default()`.
- `XcmpQueue::{suspend_xcm_execution, resume_xcm_execution}` errors when
they would be a noop.
- Properly validate the `QueueConfigData` before setting it.
- Marked weight files as auto-generated so they wont auto-expand in the
MR files view.
- Move the `hypothetical` asserts to `frame_support` under the name
`experimental_hypothetically`
Questions:
- [ ] What about the ugly `#[cfg(feature = \"runtime-benchmarks\")]` in
the runtimes? Not sure how to best fix. Just having them like this makes
tests fail that rely on the real message processor when the feature is
enabled.
- [ ] Need a good weight for `MessageQueueServiceWeight`. The scheduler
already takes 80% so I put it to 10% but that is quite low.
TODO:
- [x] Remove c&p code after
https://github.com/paritytech/polkadot/pull/6271
- [x] Use `HandleMessage` once it is public in Substrate
- [x] fix `runtime-benchmarks` feature
https://github.com/paritytech/polkadot/pull/6966
- [x] Benchmarks
- [x] Tests
- [ ] Migrate `InboundXcmpStatus` to `InboundXcmpSuspended`
- [x] Possibly cleanup Migrations (DMP+XCMP)
- [x] optional: create `TransformProcessMessageOrigin` in Substrate and
replace `ProcessFromSibling`
- [ ] Rerun weights on ref HW
---------
Signed-off-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
Co-authored-by: Liam Aharon <liam.aharon@hotmail.com>
Co-authored-by: joe petrowski <25483142+joepetrowski@users.noreply.github.com>
Co-authored-by: Kian Paimani <5588131+kianenigma@users.noreply.github.com>
Co-authored-by: command-bot <>
* Rename `polkadot-parachain` to `polkadot-parachain-primitives`
While doing this it also fixes some last `rustdoc` issues and fixes
another Cargo warning related to `pallet-paged-list`.
* Fix compilation
* ".git/.scripts/commands/fmt/fmt.sh"
* Fix XCM docs
---------
Co-authored-by: command-bot <>
* Set test crates to nopublish
* Don't publish more crates
* Set even more crates to nopublish
---------
Co-authored-by: Oliver Tale-Yazdi <oliver.tale-yazdi@parity.io>
* Remove the `wasmtime` feature flag
* Update `substrate` and `polkadot` to the newest `master`
* Update `substrate` and `polkadot` to the newest `master`
* Use DecodeLimit for decoding XCM messages
* Use decode_all_with_depth_limit in appropriate places
* Use decode_all while decoding byte vector
* cargo fmt
* Adds support for checking the timestamp inherent while validating a block
This adds support for checking the timestamp inherent while validating a
block. This will use the relay chain slot number * relay chain slot
duration to calculate a timestamp. This timestamp is used to check the
timestamp in the timestamp inherent.
* Update polkadot-parachains/rococo-runtime/src/lib.rs
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
* Update polkadot-parachains/statemine-runtime/src/lib.rs
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
* Update primitives/timestamp/src/lib.rs
Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>
* Fix warnings
Co-authored-by: Shawn Tabrizi <shawntabrizi@gmail.com>
Co-authored-by: André Silva <123550+andresilva@users.noreply.github.com>
This renames and moves the `SystemInherentData` into its own crate.
The struct is now called `ParachainInherentData`. Besides moving the
struct, this also moves the code for creating this struct into this crate.
* Move pallets to pallets folder and rename them
* Move genesis file to service
* Rename primitives to primitives-core
* Delete cumulus-runtime
* Move stuff to client folder and rename
* Update polkadot
* Extend cumulus primitives with some relay chain exports
Follow https://github.com/paritytech/polkadot/pull/2194 to see the
polkadot PR
* collator: collect the state proof
This commit changes cumulus-collator so that it takes the relay chain
state at the relay parent and creates a storage proof that contains all
the required data for PVF.
* parachain-upgrade: use the proofs instead
This change is needed to make cumulus logic to not longer depend on the
transient validation data. As part of this change, in order to preserve
the current behavior `code_upgrade_allowed` now is computed on the
parachain side, rather than provided by polkadot.
Turned out that this requires to know the self parachain id so it was
added where needed.
* message-broker: use relay state to track limits
this should make sending messages safe from accidentally running over
the relay chain limits that were previously unknown.
* Update polkadot
So that `relay_storage_root` is available through `ValidationParams`
* Check `relay_storage_root` matches expected
Check that `relay_storage_root` submitted by the collator matches the
one that we receive in `validate_block` through `ValidationParams`
* Add a missing check for `dmq_mqc_head` while we are at it
* Update polkadot
* Fix tests that use the relay storage root
* Apply suggestions from code review
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
* Update message-broker/src/lib.rs
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
* Remove unneeded (&_)
* Fix unwraps
* Polish basti's suggestion
* Fix merge
* Bring back the System::can_set_code check
Co-authored-by: Bastian Köcher <bkchr@users.noreply.github.com>
* The problem in the nutshell
* Make it compile
* make tests pass
* Update the parachain-upgrade module
* Fix collator tests
Co-authored-by: Bastian Köcher <git@kchr.de>
* Start with something
* Whatever
* Update
* MOARE
* Make cumulus-network compile and tests work
* Update more and fixes
* More stuff
* More fixes
* Make collator build
* Make test almost work
* Remove contracts runtime
* More test work
* Make service compile
* Fix test-service
* Fix test client
* More fixes
* Fix collator test
* Fix network tests (again)
* Make everything compile, finally
* Fix tests
* Update to latest masters
* Remove ignore
* Switch to different branch in polkadot for now
* Update reference
* Make it compile with latest changes
* Update collator/src/lib.rs
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
* Update to latest upstream
* Update to latest master
* Fix test
Co-authored-by: Robert Habermeier <rphmeier@gmail.com>
Oliver Tale-Yazdi