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[BugFix][Worker] Omit kv_cache_allocation_context on vLLM 0.28 - #16791

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ZT-AIA merged 3 commits into
vllm-project:mainfrom
yjyang62:cursor/v2-kv-cache-alloc-028-9095
Sep 17, 2026
Merged

ZT-AIA merged 3 commits into
vllm-project:mainfrom
yjyang62:cursor/v2-kv-cache-alloc-028-9095

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@yjyang62

@yjyang62 yjyang62 commented Sep 17, 2026 •

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What this PR does / why we need it?

NPUModelRunner.initialize_kv_cache currently always forwards kv_cache_allocation_context to GPUModelRunner.initialize_kv_cache. That kwarg is the sleep-mode allocation pool and only exists on newer vLLM. On vLLM 0.28 the parent signature is (self, kv_cache_config), so KV cache init raises TypeError at worker startup.

Forward kv_cache_allocation_context only when the parent signature includes it, matching the other 0.28 super() kwargs already gated in the V2 runner. Newer vLLM that already accepts the argument is unchanged.

Ported from 0ce574607e689262622a8cdb10169c670d3c3f9a onto current main.

Does this PR introduce any user-facing change?

No. Behavior is unchanged on vLLM versions that already accept kv_cache_allocation_context. On vLLM 0.28, MRv2 KV cache initialization no longer crashes.

How was this patch tested?

  • Unit test added: tests/ut/worker/test_model_runner_v2.py::test_initialize_kv_cache_omits_allocation_context_when_upstream_lacks_it

    • Patches GPUModelRunner.initialize_kv_cache with a 2-arg parent (no allocation-context kwarg)
    • Calls initialize_kv_cache(..., kv_cache_allocation_context=object())
    • Asserts the parent is invoked without a TypeError
  • vLLM main: vllm-project/vllm@84030bb

GPUModelRunner.initialize_kv_cache on 0.28 does not accept the
sleep-mode allocation-pool kwarg. Forward it only when the parent
signature includes the parameter, matching other 0.28 super() kwargs
in the V2 runner.

Ported from 0ce5746 onto current main.

Signed-off-by: yjyang62 <yjyang62@users.noreply.github.com>

Co-authored-by: yjyang62 <yjyang62@users.noreply.github.com>
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Summary of Changes

Hello, I'm Gemini Code Assist1! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request addresses a compatibility issue between the NPU runner and vLLM 0.28. By inspecting the parent method's signature at runtime, the code now dynamically determines whether to pass the kv_cache_allocation_context argument, ensuring stability across different vLLM versions without breaking newer implementations that rely on this parameter.

Highlights

  • Compatibility Fix: Updated NPUModelRunner.initialize_kv_cache to conditionally forward kv_cache_allocation_context only if the parent method signature supports it, preventing TypeError on vLLM 0.28.
  • Testing: Added a new unit test in tests/ut/worker/test_model_runner_v2.py to verify that the allocation context is correctly omitted when the upstream implementation lacks the parameter.
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@yjyang62 yjyang62 added the ready-precise run selected e2e test for pr label Sep 17, 2026

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Code Review

Suggested PR Title:

[Ops][BugFix] Conditionally pass kv_cache_allocation_context based on vLLM version

Suggested PR Summary:

### What this PR does / why we need it?
This PR modifies `initialize_kv_cache` in `ModelRunner` to conditionally pass `kv_cache_allocation_context` to the parent class based on signature inspection, resolving compatibility issues with vLLM 0.28 where `GPUModelRunner.initialize_kv_cache` does not accept this parameter. It also adds a unit test to verify this behavior.

Feedback suggests replacing the fragile dynamic signature check (`inspect.signature`) with the existing `vllm_version_is("0.28.0")` helper, removing the unused `inspect` import, and mocking `vllm_version_is` in the unit test to ensure robust test execution.

### Does this PR introduce _any_ user-facing change?
No.

### How was this patch tested?
A new unit test `test_initialize_kv_cache_omits_allocation_context_when_upstream_lacks_it` was added in `tests/ut/worker/test_model_runner_v2.py`.

Comment thread vllm_ascend/worker/v2/model_runner.py Outdated
Comment thread vllm_ascend/worker/v2/model_runner.py Outdated
Comment thread tests/ut/worker/test_model_runner_v2.py
Drop inspect.signature and omit the sleep-mode allocation-pool kwarg
when vllm_version_is("0.28.0"), matching the other 0.28 super() gates
in the V2 runner.

Signed-off-by: yjyang62 <yjyang62@users.noreply.github.com>

Co-authored-by: yjyang62 <yjyang62@users.noreply.github.com>
Split the captured parent-call state so kwargs stay typed as a dict,
which clears the pre-commit mypy operator/index errors.

Signed-off-by: yjyang62 <yjyang62@users.noreply.github.com>

Co-authored-by: yjyang62 <yjyang62@users.noreply.github.com>
@cursor
cursor Bot force-pushed the cursor/v2-kv-cache-alloc-028-9095 branch from 348f533 to c0a12f2 Compare September 17, 2026 12:40
@ZT-AIA
ZT-AIA enabled auto-merge (squash) September 17, 2026 12:45
cursor Bot pushed a commit to yjyang62/vllm-ascend that referenced this pull request Sep 17, 2026
Drop inspect.signature and omit the sleep-mode allocation-pool kwarg
when vllm_version_is("0.28.0"), matching the other 0.28 super() gates
in the V2 runner.

Ported from vllm-project#16791

Signed-off-by: yjyang62 <yjyang62@users.noreply.github.com>

Co-authored-by: yjyang62 <yjyang62@users.noreply.github.com>
@ZT-AIA
ZT-AIA merged commit d6acae3 into vllm-project:main Sep 17, 2026
28 checks passed
ZT-AIA pushed a commit that referenced this pull request Sep 19, 2026
### What this PR does / why we need it?





Upgrade the supported vLLM release dependency from **v0.28.0 to the
official v0.29.0**, alongside the fixed vLLM main commit inherited from
#16216 (already merged).



| Reference | Commit |


|---|---|


| vllm-ascend rebase base | `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c` |
| PR head | `8c5d785931c495701bf1da8b5bc80b321ebd3cd0` |


| Fixed vLLM main | `84030bbe3d74d99bad477a3d2e37a973ccd8865c` |


| Previous release: v0.28.0 | `2cf0a6915ce544dc493a0990f2ea38d81601128a`
|
| Target release: v0.29.0 | `98dff2a81d747d1dba01a47f939f48c3526d4206` |



- Use common implementations where v0.29.0 and the fixed main share
KV-cache layouts, Mamba copy/group APIs, PCP handling and
speculative-decoding contracts.
- Retain explicit `vllm_version_is("0.29.0")` branches for contracts
that still differ, including RoPE, scheduler block snapshots,
InputBatch, ReplaySSM, KV zeroing and DSpark PP handling.
- Remove obsolete v0.28.0 compatibility and adapt existing test
fixtures. Version detection uses package versions and the explicit
`VLLM_VERSION` override, with local-version suffix handling and UT
environment isolation retained; no hard-coded release-SHA inference
remains.
- Apply the Ascend PCP+DP validator patch only to v0.29.0, preserving
other validations and EPLB platform binding. Rebuild dependent Pydantic
schemas so nested configuration validation uses the patched validator.
The global patch documentation records its rationale and removal
criteria.



- Preserve #15747's Spec+PP protocol/partition handling after rebase;
use the common exact-release selector and the real function-local DSpark
sharing import.



This release-only upgrade does not require a new main old-to-new
interface scan. The latest rebase incorporates
[#16905](https://github.com/vllm-project/vllm-ascend/pull/16905/files),
which reverted #16544 at `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c`. The
now-unnecessary V4.1 drafter import gate and tuple annotation have been
removed. Other release adaptations, including #15747 Spec+PP handling,
remain. Detailed contract evidence is retained below for review.



<details>


<summary>Per-file adaptations and exact upstream evidence</summary>





#### Per-file adaptation ledger





Evidence IDs refer to the exact source contract and upstream diff table
below. Every row is syntax checked; branch-normalized AST comparison
confirms unchanged main function bodies except the version identity
helper and the explicitly retired propose argument/type annotations.
Both supported versions completed CPU and NPU execution as recorded
below.



| Ascend file / symbols | Disposition and upstream evidence |
Verification |
|---|---|---|


| `vllm_ascend/patch/worker/patch_v2/patch_dspark.py` /
`_load_dspark_model_with_target_quant`;
`tests/ut/patch/worker/test_patch_dspark_pp.py` | Preserve rebased
[Ascend
#15747](https://github.com/vllm-project/vllm-ascend/pull/15747/files#diff-a170a42fe1e9275c999642b05c4a437d0c9104dd8ea19151796142909b00ab2a)
(`82df9d871`), including manual PP partition masking. vLLM [#52809
diff](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`91a893de64722019ea2faf852e06cabe143b3490`) moved `_should_share`
inside the loader on both supported pins, so retain the earlier release
fix: patch `eagle_utils`, never read/patch a nonexistent
`dspark_utils._should_share`. v0.29 keeps its global PP guard; main has
native PP via
[#50514](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`d87a440f88e28e5b37f9b1e22ce214d0426d5352`). | Existing UT now checks
the real function-local import, absent module alias, and restoration on
success/failure for both lanes; partition and PP assertions retained.
Ruff/syntax pass; actual CPU/NPU pending. |
| `vllm_ascend/worker/v2/pp_utils.py` / `use_legacy_spec_pp`;
`tests/ut/worker/v2/test_pp_utils.py` | #15747 added broad 0.28/0.29
routing and an obsolete 0.28 dev-build recognition path. For the two
supported pins, #50514 exists only on fixed main. Route through
`vllm_version_is("0.29.0")`; retain package/local-suffix and explicit
environment-override semantics. No release-SHA inference or third
release lane. | Existing UTs exercise the real uncached version helper
with monkeypatch isolation, local suffix, fixed-main dev string,
explicit override, and non-target versions. Isolated routing checks and
Ruff/syntax pass; full CPU UT pending. |
| `vllm_ascend/_310p/model_runner_310p.py`<br>`_prepare_inputs`,
`_allocate_kv_cache_tensors` | #51718, #56078; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/spec_decode/llm_base_proposer_310.py`<br>`set_inputs_first_pass`
| #56078; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/worker/v2/model_runner.py`<br>`initialize_kv_cache`,
`_allocate_kv_cache_tensors`, `_prepare_inputs_310p` | #51718/#54436;
use shared standardized layouts and retain the v0.29.0 InputBatch gate.
The rebase preserves vllm-ascend #16043's MTP copy tracking while
removing only legacy v0.28.0 allocation paths. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/_310p/worker/v2/rope.py`<br>`get_310p_rope_state` |
#56078; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/attention_v1.py`<br>`module imports/dispatch` |
#52839; both lanes use the common PCP import. Rebase keeps current
upstream graph code and removes only the v0.28.0 import branch. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/context_parallel/sfa_cp.py`<br>`module
imports/dispatch` | #52839; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/indexer.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/mla_v1.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/core/dyntra_lb_scheduler.py`<br>`module imports/dispatch`
| #51358, #54853; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/core/recompute_scheduler.py`<br>`module
imports/dispatch`, `schedule` | #51358, #54853; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/core/scheduler_profiling_chunk.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/core/kv_cache_interface.py`<br>`get_kv_cache_compression_ratio`,
`AscendMLAAttentionSpec`, `get_storage_block_size` | #51718, #53906;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/ascend_store/layerwise_cache_layout.py`<br>`_merge_specs`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/preempt_offload/manager.py`<br>`_derive_cpu_config`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/native/npu.py`<br>`create_worker`
| #52615; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/models/deepseek_mtp.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/deepseek_v4/indexer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/cache_config.py`<br>`make_tensor` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/kv_cache.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/kimi_k3_dspark.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/layer/attention/layer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_balance_schedule.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/platform/patch_kv_cache_coordinator.py`<br>`__init__`
| #53614; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_kv_cache_utils.py`<br>`module
imports/dispatch`, `_get_max_layers_per_page_size`,
`_ascend_max_memory_usage_bytes_from_groups`,
`_ascend_get_kv_cache_config_from_groups` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/patch/platform/patch_use_v2_model_runner.py`<br>`module
imports/dispatch`, `_patched_get_unsupported_features` | #53853, #53183;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py`<br>`bind_kv_cache` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py::bind_kv_cache` |
v0.29.0 has no ReplaySSM ring-tracker helper; fixed main requires it
after KV binding. Evidence: [#52506,
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`, worker-utils
diff](https://github.com/vllm-project/vllm/pull/52506/files#diff-645d58630d5acf3a0b07226bfef1e890a584c32502ab97c3d4642070f39a783c).
Keep an explicit v0.29.0 exclusion and preserve the fixed-main call. |
Failure reproduced on v0.29.0; Historical release/main NPU validation
passed; current-head CI pending |
| `vllm_ascend/patch/worker/patch_mamba_utils.py`<br>`module
imports/dispatch`, `_get_state_copy_funcs_for_layer` | #53896; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_v2/patch_attn_utils.py`<br>`module
imports/dispatch` | #51718; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/worker/patch_v2/patch_dspark.py`<br>`_load_dspark_model_with_target_quant`
| #50514, #52809; v0.29.0 keeps `get_pp_group` module-bound but imports
`_should_share` locally from Eagle utilities; fixed main removes the PP
guard. Keep the release `get_pp_group` patch, share through the common
Eagle utility, and delete the obsolete v0.28.0
`dspark_utils._should_share` patch. | Exact release failure reproduced;
Historical release/main CPU/NPU validation passed; current-head CI
pending |
|
`vllm_ascend/spec_decode/llm_base_proposer.py`<br>`model_returns_tuple`,
`__init__`, `set_inputs_first_pass` | #56078, #52861; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/utils.py`<br>`get_kv_cache_tensor_layers`,
`register_ascend_customop`, `vllm_version_is` | #52839, #51718, #52494;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/worker/model_runner_v1.py`<br>`_get_ascend_mamba_state_copy_funcs`,
`_allocate_kv_cache_tensors`, `_prepare_inputs`, `_dummy_run`,
`_reshape_kv_cache_tensors`, `get_kv_cache_spec`, NaN helpers |
#51718/#53896/#56078 plus #50323; remove v0.28.0 layouts/copy APIs and
import the NaN helpers directly because v0.29.0 and fixed main expose
the same contract. XD-RoPE remains explicitly gated to v0.29.0. | Static
checked; historical dual-version CPU/NPU validation passed; current-head
CI pending |
| `vllm_ascend/worker/v2/aclgraph_utils.py`<br>`capture` | #53869 makes
`pcp_manager` common to both lanes. The rebase preserves vllm-ascend
#16409's host-parameter-update revert and removes only the obsolete
v0.28.0 capture branch. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/attn_utils.py`<br>`get_kv_cache_spec`,
`_allocate_kv_cache`, `_reshape_kv_cache_v2` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/worker/v2/block_table.py`<br>`__init__`,
`init_block_table_layout_tensors`, `compute_slot_mappings` | #51718,
#51031; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/model_runner.py`<br>`module imports/dispatch`,
`prepare_inputs`, `__init__`, `sample_tokens`, `prepare_dummy_attn`,
`execute_model` | #50514, #54436, #52506, #55212, #53515; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/pcp_manager.py`<br>`partition_batch` | #53515;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/sample/gumbel.py`<br>`module imports/dispatch`
| #54282; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/__init__.py`<br>`init_speculator` |
#49811; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
|
`vllm_ascend/worker/v2/spec_decode/autoregressive/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dflash/speculator.py`<br>`module
imports/dispatch`, `propose` | #53694, #52188; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dspark/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/worker/worker.py`<br>`_scale_kv_cache_memory_for_multi_group`,
`wake_up` | #51718, #53508; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |



#### Exact upstream evidence





| Upstream change | Full commit SHA / direct diff | Actual supported
contracts and branch decision |
|---|---|---|


| #51718 |
`8bdc70ec7b379279ec0152343239c2d50aced687`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/51718/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Both use layers/layer_stride/block_stride/offset, tokens_per_state,
CircularBufferSpec and standardized backing; retire
shared_by/compress_ratio allocation branches. |
| #52839 |
`58e5ee0158b6a264c3506f00480e108a34b33ee3`<br>[vllm/v1/attention/ops/pcp.py](https://github.com/vllm-project/vllm/pull/52839/files#diff-23d7e7ab01a7f44414796e1e1b08cfa5277a05f54143ee2dd3a1041ca47772a8)
| Both import PCP operations from vllm.v1.attention.ops.pcp. |
| #53896 |
`e126687a9a828d513c01a07cd69f025f27d63280`<br>[vllm/v1/worker/mamba_utils.py](https://github.com/vllm-project/vllm/pull/53896/files#diff-8ab86225fa08e9a6700851191abcb3f4f8b0bba40e97a82aad700d7a23a4d7ec)
| Both use Mamba copy-function dictionaries and unwrap
UniformTypeKVCacheSpecs. |
| #53106 |
`1fe3a1571ac67581478a11743e55a306de1d136f`<br>[vllm/model_executor/models/utils.py](https://github.com/vllm-project/vllm/pull/53106/files#diff-b0ba1095e9881e5c87e33dfd20958d1e1ceafe8a4433aa692f468e61be130b21)
| Both use WeightsMapper instead of AutoWeightsLoader
skip_prefixes/skip_substrs. |
| #53906 |
`98ed0856f31fa3aaf5e27464e2b4ef5a8ee6b2f5`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/53906/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Only pinned main has the optional MLA storage_block_size dataclass
field; release keeps the Ascend derived property, using
tokens_per_state. |
| #56078 |
`719284fe158f1be8a9dd92953295fc9d49015730`<br>[vllm/config/model.py](https://github.com/vllm-project/vllm/pull/56078/files#diff-998c640befaf137b9af825f29f4e6e47d273caab1fd04093c97df24b18f5c417)
| Release retains uses_xdrope_dim and three M-RoPE dimensions; pinned
main uses mrope_num_dims and unified RoPE. |
| #52615 |
`138d137b5b955a5ebee98dfc946ecdd65d7b87ce`<br>[vllm/v1/kv_offload/cpu/spec.py](https://github.com/vllm-project/vllm/pull/52615/files#diff-7d073c26c9b22f74e9ff9e4c8da733d1807233edb83439fc64fbd48c43ae6045)
| Release uses num_blocks/kv_bytes_per_block; main uses
num_chunks/kv_bytes_per_chunk. |
| #51358 |
`6b110badbb22d3f66c7218b71138f13b7a6b3419`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/51358/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release now has boundary_state_offloads and KVConnectorBlockState;
remove partial_tail_offloads plumbing. |
| #54853 |
`0b066293f3c738a0cbd3a087bf893f2f4dcd61f2`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/54853/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release constructor takes block_ids snapshots; main takes req_ids and
resolve_block_ids. Keep exact release snapshot membership and main
lazy-resolution membership. |
| #53614 |
`144e79c8106da23141ac010394b782f730cc7fe8`<br>[vllm/v1/core/kv_cache_coordinator.py](https://github.com/vllm-project/vllm/pull/53614/files#diff-43875c71daa893ef7567e21633d9988c2baf95bef61e3a334a6d584d6444d725)
| Only main configures drop_eagle_checkpoint_block for replay-aligned
Mamba checkpoints. |
| #50514 |
`d87a440f88e28e5b37f9b1e22ce214d0426d5352`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Release retains module-level PP/share symbols and Ascend PP
workaround; main has the subsequent PP integration. |
| #52809 |
`91a893de64722019ea2faf852e06cabe143b3490`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Between v0.28.0 and v0.29.0, `_should_share` moved from a DSpark
module binding to a function-local import from Eagle utilities. The
shared Eagle patch remains effective; the old DSpark-module read/write
must be removed. |
| #54436 |
`6bafc049aae6c26e210162630914ee9177a4b586`<br>[vllm/v1/worker/gpu/input_batch.py](https://github.com/vllm-project/vllm/pull/54436/files#diff-106f39c08266f186830bb8fcd7fb1df35c0aaa5fd0ac5c17aac64aeddee48902)
| Release InputBatch requires max_seq_len_np; main removed it. |
| #52506 |
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52506/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Only main accepts valid_dummy_state_slots/valid_state_slots capture
arguments. |
| #55212 |
`83990f5bcc0b5eb08b2f1fd1b109fa8a31b122f3`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/55212/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Release prepares DCP local sequence lengths before partitioning; main
initializes DCP metadata afterwards. |
| #53515 |
`b1fbbc2ade51e3826bc92e4733c9c692ee21d42d`<br>[vllm/v1/worker/gpu/pcp_manager.py](https://github.com/vllm-project/vllm/pull/53515/files#diff-45dad5fe975c2ec8d02124fa65579cf11bfe9169a94217ceae1de0ea29518127)
| Both accept padded_num_tokens for persistent PCP input buffers. |
| #53869 |
`b3af042abd8fe5a297ec3ec72db276fd661a67b3`<br>[vllm/v1/worker/gpu/cudagraph_utils.py](https://github.com/vllm-project/vllm/pull/53869/files#diff-fc699ff1c69fd17adb60116b3a7a20aa88b5187205f589952d0f3792475ec212)
| Both accept pcp_manager during graph capture. |
| #51031 |
`0ecc284790e5403f74b899524ef82ecb69f83cb3`<br>[vllm/v1/worker/gpu/block_table.py](https://github.com/vllm-project/vllm/pull/51031/files#diff-21052649468f36e592c9ed378a9cd7b4615c558fb4d10f034f7b4268d3b6f9e1)
| Both distinguish KV and kernel block sizes during DCP slot mapping. |
| #54282 |
`fe755c88995ad468882517b6c4bdd60138d46a3a`<br>[vllm/v1/worker/gpu/sample/gumbel.py](https://github.com/vllm-project/vllm/pull/54282/files#diff-02f7c5a06a2d23d544a07d57af16c7ffb74886469c8844385f51a719e329e6b8)
| Both gumbel sampling APIs include is_drafting. |
| #52188 |
`d1e3eee6fb8ed3623241ef5c8e3ac533f775bff9`<br>[vllm/v1/worker/gpu/spec_decode/dflash/speculator.py](https://github.com/vllm-project/vllm/pull/52188/files#diff-0220b514682125dea26026db2d7caa1a0d9c772d84452e9e124434d1e11be5f0)
| Both DFlash input kernels take cp_rank/CP_SIZE/CP_INTERLEAVE. |
| #53694 |
`5acc1c4e4b8730298cbff7a4a7c68c814dc24fd7`<br>[vllm/v1/worker/gpu/spec_decode/autoregressive/speculator.py](https://github.com/vllm-project/vllm/pull/53694/files#diff-3e7e2ba21d64e309503b7c5fe537363a7669fa1baf84d3c2e4891d9aed64fbe6)
| Both propose APIs take DPSyncState; remove the obsolete token-count
argument and retain replicated-PCP synchronization. |
| #49811 |
`01af92e175407231b1433b0aef01a1b9c983d955`<br>[vllm/v1/worker/gpu/spec_decode/extract_hidden_states.py](https://github.com/vllm-project/vllm/pull/49811/files#diff-b13061cd1be0bc80aaa9fce208fe9128aaaad25b3832c5f1693da1d4e8263f5e)
| Both support extract_hidden_states on MRV2; remove old unsupported
dispatch/skip. |
| #53508 |
`479eeb32d2b432dbb4e442fbd3f94ca2eca35d67`<br>[vllm/v1/worker/gpu_model_runner.py](https://github.com/vllm-project/vllm/pull/53508/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29)
| Both remove post_kv_cache_wake_up; retire release-only call. |
| #52494 |
`3ff4f02dfe69abc1a0375d1ea8d8d5cb25609fcc`<br>[vllm/models/kimi_k3/amd/mla.py](https://github.com/vllm-project/vllm/pull/52494/files#diff-aad295e6de3607a46cea22f9f1cca768d4937dc5e1d3ca58105513358ed4e4c1)
| Only main provides KimiK3MultiHeadLatentAttentionWrapper; retain
release exclusion. |
| #52861 |
`b09bd69b5bf14911abef9a0e8e493b83c8a38fa6`<br>[vllm/v1/spec_decode/llm_base_proposer.py](https://github.com/vllm-project/vllm/pull/52861/files#diff-56fcad87dae9192cb0ab1643473765096cc44e1e744dccf3b99c4f2d85360d28)
| Both include DeepseekV32MTPModel in the two-hidden-state architecture
set. |
| #54713 |
`b28c3e1568bfae930f61d4b24940e47528c85d4a`<br>[vllm/v1/core/single_type_kv_cache_manager.py](https://github.com/vllm-project/vllm/pull/54713/files#diff-97c184a680b7a4bd7d58b11aa0073706533cc887d990eddb98469e7374025ab3)
| Only main takes replay_boundaries in compressed-prefix hit lookup;
preserve release calls without that keyword. |
| #42785 |
`442d36031ce710aa2a777c353becb660c57ab2bd`<br>[vllm/v1/worker/encoder_cudagraph.py](https://github.com/vllm-project/vllm/pull/42785/files#diff-287435cc78f753ae42acda542bca01c094557cd17db6bc2991d968fd012c1f18)
| Only main capture callers pass axis_keys; preserve the existing Ascend
rejection of nonempty axes. |
| #52358 |
`8f816a3f665489d7f0d222115d4f72ebab01076b`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52358/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Both ExecuteModelState have dp_sync; only main has cudagraph_stats. |
| #52789 |
`9eb9d9d3953959695108600c8ed33d36bc6a1e5f`<br>[vllm/v1/core/sched/scheduler.py](https://github.com/vllm-project/vllm/pull/52789/files#diff-9eeca590fd99f15621897e559dba39b3ec4e7c2c65ec3c3229711689e008b5f4)
| Release already has mamba_has_prefill_checkpoint_blocks; later main
also has fine-grained prefix-cache state. |
| #51251 |
`7bbbf7c8e5040f7ebd374e8cbc657e01af1136dd`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/51251/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| v0.29.0 and main expose ec_manager_config; retire the old release-only
ScoreEncoder configuration skip. |
| #53240 |
`b2db227a7c4c5e55f85524a094b607e5d27408b4`<br>[vllm/model_executor/layers/fused_moe/routed_experts_capturer.py](https://github.com/vllm-project/vllm/pull/53240/files#diff-0bbfc19dd02619bbcc948fa0281d4ab9a5b77b7d5062cde9911319c93089535c)
| v0.29.0 supports MRV2 routed-expert capture and unwraps uniform cache
groups; retire the old release-only replay skip. |
| #53853 |
`e376d45e82cb7e220da430e3179e81eb0922cf56`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53853/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both delegate PCP compatibility validation to the PCP manager. |
| #53183 |
`4aab2b0ebed20343efe543c633f71b3c1336d5b8`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53183/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both expose the V1 unsupported-feature helper used by the existing
Ascend MRV1 feature filter. |



#### Additional inherited contracts





| vllm-ascend change | Why it is required | Upstream cause and direct
link | Lane | Verification |
|---|---|---|---|---|


| `_310p/worker/v2/model_state.py`: remove tuple-return and RecoverSSM
v0.28 fallbacks | v0.29.0 and fixed main both return `dict[MambaSpec,
list[int]]` from `get_mamba_groups` and both initialize `recoverssm`;
keeping the old fallback would preserve an unsupported third contract |
[v0.29.0 mamba
groups](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/mamba_utils.py#L691-L704),
[fixed-main mamba
groups](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/mamba_utils.py#L691-L704),
[v0.29.0
RecoverSSM](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103),
[fixed-main
RecoverSSM](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103)
| both, common implementation | Existing constructor UT now asserts the
parent-created RecoverSSM value is retained; Ruff and compileall pass |
| `worker/v2/model_runner.py`: always forward
`kv_cache_allocation_context` | v0.29.0 and fixed main both accept this
keyword; the new-base gate was specifically for v0.28.0 | [v0.29.0
signature](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_runner.py#L533-L538),
[fixed-main
signature](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_runner.py#L561-L566),
[vllm-ascend
#16791](https://github.com/vllm-project/vllm-ascend/pull/16791/files) |
both, common implementation | Existing UT continues to assert the exact
context object reaches the parent; Ruff and compileall pass |
| `_310p/worker/v2/model_runner.py`: select the release KV-zeroing
contract with `vllm_version_is("0.29.0")` | v0.29.0 exposes
`KVCacheGroupSpec.is_eagle_group` but lacks
`SpeculativeConfig.use_eagle_block_drop`; fixed main added the method |
vLLM [#53388
diff](https://github.com/vllm-project/vllm/pull/53388/files), commit
[`481839ad9e5ebf87aecb54fa5c9d986bd5ea4b81`](vllm-project/vllm@481839a);
[v0.29.0 group
field](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/kv_cache_interface.py#L1200),
[fixed-main
helper](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/config/speculative.py#L1874-L1876)
| release differs from main | Existing two-path KV-zeroing UT retained
and renamed for v0.29.0; Ruff and compileall pass |
| existing DFlash kernel UT: remove v0.28-only kwarg omission | the
current Ascend kernel accepts the CP arguments and the only excluded
lane was v0.28.0, which this PR replaces | [vllm-ascend
#15098](https://github.com/vllm-project/vllm-ascend/pull/15098/files) |
both, common invocation | Existing NPU test remains enabled with all
assertions; Current-head CI pending |
| Ascend change | Why / upstream cause | Lane | Verification |


|---|---|---|---|


| `patch/platform/patch_parallel_config.py`, registration, and global
patch documentation | Allow Ascend PCP+DP by removing the generic GPU
restriction, following vLLM
[#54523](https://github.com/vllm-project/vllm/pull/54523/files), commit
`7c2f1ff4958eaf0818405e9192c71608fe4a16b1`. Preserve dynamic
`parallel_config.current_platform` lookup and rebuild ParallelConfig →
SpeculativeConfig → VllmConfig. | v0.29.0 only | Existing
configuration/EPLB UTs and historical PCP+DP NPU execution passed;
current-head CI pending. |
| `ops/triton/v2/sample/categorical_sample.py`, existing Gumbel UT |
Both supported contracts require `is_drafting`, from
[#54282](https://github.com/vllm-project/vllm/pull/54282/files),
`fe755c88995ad468882517b6c4bdd60138d46a3a`; preserve the inherited
optimized kernel and use a common wrapper. | Both | Existing positive
drafting assertion retained; current-head CI pending. |
| `patch/platform/patch_kv_cache_coordinator.py`, existing prefix-cache
UT | Both support `cache_hit_alignment_tokens`, introduced by
[#53598](https://github.com/vllm-project/vllm/pull/53598/files),
`2ba984a5d06db414f3b2474fe9338faf6cd80a1c`; retire the v0.28-only
write-mask branch. | Both | Existing assertions retained; current-head
CI pending. |



#### Rebase and retired-fallback evidence





| Change | Exact source evidence | Decision |


|---|---|---|


| `tests/e2e/conftest.py::PROMPT_CONFIGS[HunyuanOCR]` | vLLM
[#53272](https://github.com/vllm-project/vllm/pull/53272/files#diff-0852f1e9753819abe4f85380abdc0660fd4a998f44bd7bb73d68f462bd776d95),
`d53b1c2efc0ca7161c3844f51ca9acbcdb7129d5` removes native Hunyuan V1/VL
before v0.29.0; both exact supported sources lack it. The old
conditional came from vllm-ascend
[#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-824bc3e5c28226a3c0f4581750fa93a7da7001aff9e0ff4aee4131e3edd7b144),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Remove the v0.28.0
selector and use the existing exclusion for both supported lanes. This
does not migrate the protected SFA PCP skip or add a v0.29.0 accuracy
skip. |
| `vllm_ascend/worker/model_runner_v1.py` NaN helper imports and
`tests/ut/worker/test_model_runner_v1_nan_detection.py` | vLLM
[#50323](https://github.com/vllm-project/vllm/pull/50323/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29),
`12292d94b25869be2af6b6d4f8eea6c2445e935f`; both exact sources export
`nans_to_dict`, `gpu_sync_allowed`, and `raise_if_nan_logits`. The
v0.28.0 fallback originated in vllm-ascend
[#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-c49594855b615477bbc34f06d2d423a7dd84c021a7925cd1f61fdb79cb814c08),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Delete
import-failure/`None` fallbacks and the existing UT's obsolete
availability skip; assertions remain unchanged and execute on both
lanes. |
| `vllm_ascend/worker/v2/aclgraph_utils.py` | vllm-ascend
[#16409](https://github.com/vllm-project/vllm-ascend/pull/16409/files#diff-dc1c8a80dadf23627467bf04d6bc59fe13c6d075b7d2564d0acc07dc97d921f3),
`799801feef347469d5e9b39374b9210e0d4f7431`. | Preserve the upstream
revert while resolving the real rebase conflict; do not reintroduce the
reverted graph-update behavior. |
| `vllm_ascend/_310p/worker/v2/model_runner.py` | vllm-ascend
[#16043](https://github.com/vllm-project/vllm-ascend/pull/16043/files#diff-2f27611a7cfbbdb780b9e88157f05d14d6dfe65406c8d66a5ba1f6949124f5d2),
`d4d2957e5208c2f464d4625c05920bd29ea233cb`. | Preserve the newly merged
310P MTP copy tracking and remove only the v0.28.0 descriptor/allocation
branch. |



</details>





### Does this PR introduce _any_ user-facing change?





Yes. The supported release changes from vLLM v0.28.0 to v0.29.0, and
Ascend PCP+DP is enabled on v0.29.0. The fixed main commit remains
supported. The vllm-ascend package version is unchanged.



Obsolete v0.28-only skips are removed where the contracts are now
supported. No skip is migrated to v0.29.0, and no golden data or
precision threshold is changed. Existing unrelated exclusions remain
exclusions, not passes.



### How was this patch tested?

Current-head validation: [run
35420046256](https://github.com/vllm-project/vllm-ascend/actions/runs/35420046256)
completed successfully on `fd876c5269fb6b39afa04e5a52433505e8786e22`: 39
successful jobs and 6 skipped jobs, no failures.
- Pre-commit and mypy passed. Fixed-main [CPU
UT](https://github.com/vllm-project/vllm-ascend/actions/runs/35420046256/job/105836507531):
**5078 passed, 67 skipped, 17 warnings**. Actual vLLM checkout
`84030bbe3d74d99bad477a3d2e37a973ccd8865c`, installed
`0.1.dev1+g84030bbe3.empty`; Ascend checkout is the PR head. CPU
`base_sha` is empty; the log says HEAD is up to date, so no unprinted
integration SHA is inferred.
- All **32 NPU jobs passed**, 16 per lane. Raw-log session totals per
lane: **562 passed, 35 skipped, 1 xfailed** (execution counts, not
deduplicated cases). Actual checkouts: main
`84030bbe3d74d99bad477a3d2e37a973ccd8865c`, release
`98dff2a81d747d1dba01a47f939f48c3526d4206`; installed versions
`0.1.dev1+g84030bbe3.empty` and `0.29.0+empty`. Each log confirms Ascend
head `fd876c5269fb6b39afa04e5a52433505e8786e22`, integration base
`e139b7d573d3769fd1407d5027d7d4831f5469f0`, and HEAD is up to date.
- PCP+DP and PCP+PP+MTP suite: [main A3 four-card
part4](https://github.com/vllm-project/vllm-ascend/actions/runs/35420046256/job/105845372541)
and [release A3 four-card
part4](https://github.com/vllm-project/vllm-ascend/actions/runs/35420046256/job/105845372595)
both passed. This does not establish a root cause for historical HCCL
failures.
- Skipped and expected-failure cases are not passes. **Current-head
release CPU verification remains missing**: the existing CPU job runs
fixed main only. Historical release CPU results do not fill this gap. No
workflow changes or additional skips were introduced.


Latest rebase: head `fd876c5269fb6b39afa04e5a52433505e8786e22` onto
upstream main `e139b7d573d3769fd1407d5027d7d4831f5469f0`. The old-head
green results below are historical; new-head CI has completed
successfully; see the verified results below. The fixed vLLM main and
release pins remain unchanged. PR-wide Ruff, formatting and Python AST
checks passed for 95 Python files; no workflow changes.

Rebase reconciliation:
- Preserve upstream
[#16853](https://github.com/vllm-project/vllm-ascend/pull/16853/files),
`8f2e3fed73328148ea603ccfe5764542fa7cbbd2`, without migrating its
0.28-only validator/dispatch gates to 0.29. Both supported pins already
call the PCP manager for dispatch token counts. Restore the
version-helper import needed by the inherited method. Its inherited
0.28-only skipped tests are not counted as passes.
- Adapt the existing unsupported-feature UT to preserve the upstream
list: both supported pins delegate PCP checks to the manager via vLLM
[#53853](https://github.com/vllm-project/vllm/pull/53853/files),
`e376d45e82cb7e220da430e3179e81eb0922cf56`; no obsolete 0.28 string
filtering is reinstated.
- Adapt the existing KVPP allocation-entry UT from
[#15514](https://github.com/vllm-project/vllm-ascend/pull/15514/files),
`b64959a11ea69a51409f64e4e68da8e0924dec42`, to the common allocation
entry already used by both supported pins after vLLM #51718. Preserve
cache-view assertions and the upstream dtype changes. No test functions
or skips added.
- #16544 remains reverted by #16905; its V4.1 compatibility workaround
remains removed.

Historical validation before this rebase:


- **Current head `8c5d785931c495701bf1da8b5bc80b321ebd3cd0`:** [run
35350119603](https://github.com/vllm-project/vllm-ascend/actions/runs/35350119603)
completed successfully: **40 successful jobs, 6 skipped jobs, no
failures**. Pre-commit and mypy passed. Local Ruff lint/format and AST
checks passed for all 95 changed Python files.
- **Actual main CPU:** [job
105617611031](https://github.com/vllm-project/vllm-ascend/actions/runs/35350119603/job/105617611031)
reports **5074 passed, 37 skipped**, 17 warnings. Logs confirm the exact
PR head, vLLM checkout `84030bbe3d74d99bad477a3d2e37a973ccd8865c`, and
installed `0.1.dev1+g84030bbe3.empty`. CPU `base_sha` is empty; no
integration merge is inferred.
- **Actual dual-version NPU:** All 32 NPU job logs were audited, 16 per
lane. Fixed main installed `0.1.dev1+g84030bbe3.empty`; official release
checkout `98dff2a81d747d1dba01a47f939f48c3526d4206` installed
`0.29.0+empty`. Each lane reports **562 passed, 35 skipped, 1 xfailed**
across pytest session summaries (execution counts, not deduplicated
unique tests). Logs confirm checkout of this PR head and integration
base `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c`; the rebase step reports
HEAD is up to date.
- **PCP combinations:** The context-parallel suite containing PCP+DP and
PCP+PP+MTP passes on both [main A3
part4](https://github.com/vllm-project/vllm-ascend/actions/runs/35350119603/job/105658864889)
and [release A3
part4](https://github.com/vllm-project/vllm-ascend/actions/runs/35350119603/job/105658864659).
- **Release CPU gap:** Current-head actual release CPU remains missing
because the workflow has only a main CPU entry. Version-parameterized
UTs and historical release CPU runs do not replace actual release
installation. Historical run 35213834751 at head
`2560da9c7c2628f1b92b9305a1e80c5856bce74f` passed 4923 tests with 37
skips per lane; its temporary CPU workflow was reverted.
- **Backup:** #16898 remains unchanged with no test CI triggered. Local
branch `codex/backup-16393-before-16905` preserves previous green
`7ad4c82ee`; its results are not used as current-head validation.


Skipped/xfail cases and jobs are not counted as passes. Earlier
intermittent HCCL errors have no proven root cause; no speculative fix
is included. This run passes existing CI, but complete dual-version CPU
validation remains outstanding.



- vLLM main:
vllm-project/vllm@84030bb

---------

Signed-off-by: shenzhao <shenzhao9@huawei.com>
Co-authored-by: shenzhao <shenzhao9@huawei.com>
SkychenLee added a commit to SkychenLee/vllm-ascend that referenced this pull request Sep 20, 2026
Backport the version guard from vllm-project#16791. The vLLM 0.28 MRV2 parent initializer does not accept kv_cache_allocation_context, so unconditional forwarding prevents startup.

Preserve context forwarding for newer vLLM versions and cover both interfaces with a strict legacy-signature regression test.

Signed-off-by: litianchen <437205909@qq.com>
ningjingbengxiaohai pushed a commit that referenced this pull request Sep 20, 2026
…#17004)

### What this PR does / why we need it?



Reintroduce the vLLM v0.29.0 release upgrade from #16393, reverted by
#16949, with container defaults aligned to the supported release. Based
on upstream main `d3f6b4b59ab55dc42af1f30f425c893b95af5ee2`; preserves
later merged changes.


The image/source mismatch is confirmed in [nightly job
106004497020](https://github.com/vllm-project/vllm-ascend/actions/runs/35482881089/job/106004497020):
the image installed `vllm 0.28.0+empty` (tag `v0.28.0`) while upgraded
Ascend failed importing `_get_packed_kv_cache_groups`. All eight root
Dockerfiles still defaulted to v0.28.0. The reusable image workflow
passes no `VLLM_TAG` override, so those defaults govern release builds.
Changing only the release marker does not update those images.


- Fixed vLLM main remains `84030bbe3d74d99bad477a3d2e37a973ccd8865c`.

- Release changes from v0.28.0
(`2cf0a6915ce544dc493a0990f2ea38d81601128a`) to official v0.29.0
(`98dff2a81d747d1dba01a47f939f48c3526d4206`, rechecked against the
remote tag).
- Restore #16393's source compatibility and existing UT changes by
reversing #16949, then reconcile current upstream changes. No main
interface scan is rerun for this release-only upgrade.
- Update `VLLM_TAG` in all eight Dockerfiles: default/A3/A5/310P,
Ubuntu/openEuler. Preserve existing exact-commit build overrides. No
workflow changes.


| Current-base adaptation | Exact cause and evidence | Lane | Validation
|
| --- | --- | --- | --- |

| Eight Dockerfile `VLLM_TAG` defaults and release marker | #16393
changed the release contract but omitted image defaults; the linked
nightly log proves installation of 0.28.0 and missing
`_get_packed_kv_cache_groups`. | Release images | All eight defaults
match marker; image-build CI requested, pending |
| `worker/v2/attn_utils.py::get_kv_cache_spec` and existing
`_make_mla_layer` UT fixture | Ascend
[#16755](https://github.com/vllm-project/vllm-ascend/pull/16755/files),
`df3e755e98fba8c6a18f200c645e0c2050469bc3`, added an old-release field
selector. vLLM
[#51718](https://github.com/vllm-project/vllm/pull/51718/files),
`8bdc70ec7b379279ec0152343239c2d50aced687`, replaced `compress_ratio`
with `tokens_per_state`; both exact supported pins use the latter. Use
the common field, retaining metadata and cache-view assertions. | Both |
Source inspection and static checks passed; actual CI pending |
| `attention/attention_v1.py` import conflict | Preserve
`attention_transfer_window` from Ascend
[#15636](https://github.com/vllm-project/vllm-ascend/pull/15636/files),
`5c80630f28f8529aa82716e58b981a78819ec429`, and graph changes from
#16798; keep the common relocated PCP import from #16393. Do not restore
the old compute-start import or unused weak-reference import. | Both |
Conflict resolved; static checks passed |
| `worker/v2/aclgraph_utils.py` import conflict | Preserve
`ContextSource`, `UpdatableGraph`, and `use_updatable_graph` from Ascend
[#16798](https://github.com/vllm-project/vllm-ascend/pull/16798/files),
`34bb51f93724c565362f5108f5226303e1b56cad`, while removing the obsolete
0.28 version selector restored by the revert. | Both | Conflict
resolved; static checks passed |


| Existing 310P and Mamba model-runner UT imports | Preserve
hardware-profile imports and mocks from Ascend
[#16803](https://github.com/vllm-project/vllm-ascend/pull/16803/files),
`d3f6b4b59ab55dc42af1f30f425c893b95af5ee2`; remove only the unused
old-release selector import. Hardware capability routing remains
unchanged. | Both | Real rebase conflicts resolved; AST/Ruff/format
passed; fresh CI pending |

Newly merged changes were reviewed for version-contract impact:
#16775/#16834 PCP metadata and routing, #16923 A3 SFA,
#16426/#16924/#16955 custom ops, #16081 MTP/SP, #16669 xlite,
#15636/#16747 transfer, #16913 A5 pages, #16798 graph updates, #16755
GLM PD, #16952 C8 config, #16673 operator removal and #16320 Kimi-K3 KV
pool. Preserve these changes; no additional source-proven version branch
was identified beyond the entries above. In particular, #16747's
`UniformTypeKVCacheSpecs.kv_cache_specs` and per-layer `block_size`
exist in both exact pins; #16320 adds Ascend connector hooks. CI remains
necessary to validate runtime interactions. CI/documentation-only PRs
are retained unchanged.


<details>

<summary>Inherited per-file compatibility evidence from #16393</summary>


The following source-contract ledger is inherited from #16393. Any
historical verification wording refers only to that earlier PR; it does
not certify this new head. New-head validation is listed below.


| Reference | Commit |





|---|---|





| vllm-ascend rebase base | `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c` |
| PR head | `8c5d785931c495701bf1da8b5bc80b321ebd3cd0` |





| Fixed vLLM main | `84030bbe3d74d99bad477a3d2e37a973ccd8865c` |





| Previous release: v0.28.0 | `2cf0a6915ce544dc493a0990f2ea38d81601128a`
|
| Target release: v0.29.0 | `98dff2a81d747d1dba01a47f939f48c3526d4206` |






- Use common implementations where v0.29.0 and the fixed main share
KV-cache layouts, Mamba copy/group APIs, PCP handling and
speculative-decoding contracts.
- Retain explicit `vllm_version_is("0.29.0")` branches for contracts
that still differ, including RoPE, scheduler block snapshots,
InputBatch, ReplaySSM, KV zeroing and DSpark PP handling.
- Remove obsolete v0.28.0 compatibility and adapt existing test
fixtures. Version detection uses package versions and the explicit
`VLLM_VERSION` override, with local-version suffix handling and UT
environment isolation retained; no hard-coded release-SHA inference
remains.
- Apply the Ascend PCP+DP validator patch only to v0.29.0, preserving
other validations and EPLB platform binding. Rebuild dependent Pydantic
schemas so nested configuration validation uses the patched validator.
The global patch documentation records its rationale and removal
criteria.






- Preserve #15747's Spec+PP protocol/partition handling after rebase;
use the common exact-release selector and the real function-local DSpark
sharing import.






This release-only upgrade does not require a new main old-to-new
interface scan. The latest rebase incorporates
[#16905](https://github.com/vllm-project/vllm-ascend/pull/16905/files),
which reverted #16544 at `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c`. The
now-unnecessary V4.1 drafter import gate and tuple annotation have been
removed. Other release adaptations, including #15747 Spec+PP handling,
remain. Detailed contract evidence is retained below for review.






<details>





<summary>Per-file adaptations and exact upstream evidence</summary>






#### Per-file adaptation ledger











Evidence IDs refer to the exact source contract and upstream diff table
below. Every row is syntax checked; branch-normalized AST comparison
confirms unchanged main function bodies except the version identity
helper and the explicitly retired propose argument/type annotations.
Both supported versions completed CPU and NPU execution as recorded
below.






| Ascend file / symbols | Disposition and upstream evidence |
Verification |
|---|---|---|





| `vllm_ascend/patch/worker/patch_v2/patch_dspark.py` /
`_load_dspark_model_with_target_quant`;
`tests/ut/patch/worker/test_patch_dspark_pp.py` | Preserve rebased
[Ascend
#15747](https://github.com/vllm-project/vllm-ascend/pull/15747/files#diff-a170a42fe1e9275c999642b05c4a437d0c9104dd8ea19151796142909b00ab2a)
(`82df9d871`), including manual PP partition masking. vLLM [#52809
diff](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`91a893de64722019ea2faf852e06cabe143b3490`) moved `_should_share`
inside the loader on both supported pins, so retain the earlier release
fix: patch `eagle_utils`, never read/patch a nonexistent
`dspark_utils._should_share`. v0.29 keeps its global PP guard; main has
native PP via
[#50514](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`d87a440f88e28e5b37f9b1e22ce214d0426d5352`). | Existing UT now checks
the real function-local import, absent module alias, and restoration on
success/failure for both lanes; partition and PP assertions retained.
Ruff/syntax pass; actual CPU/NPU pending. |
| `vllm_ascend/worker/v2/pp_utils.py` / `use_legacy_spec_pp`;
`tests/ut/worker/v2/test_pp_utils.py` | #15747 added broad 0.28/0.29
routing and an obsolete 0.28 dev-build recognition path. For the two
supported pins, #50514 exists only on fixed main. Route through
`vllm_version_is("0.29.0")`; retain package/local-suffix and explicit
environment-override semantics. No release-SHA inference or third
release lane. | Existing UTs exercise the real uncached version helper
with monkeypatch isolation, local suffix, fixed-main dev string,
explicit override, and non-target versions. Isolated routing checks and
Ruff/syntax pass; full CPU UT pending. |
| `vllm_ascend/_310p/model_runner_310p.py`<br>`_prepare_inputs`,
`_allocate_kv_cache_tensors` | #51718, #56078; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/spec_decode/llm_base_proposer_310.py`<br>`set_inputs_first_pass`
| #56078; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/worker/v2/model_runner.py`<br>`initialize_kv_cache`,
`_allocate_kv_cache_tensors`, `_prepare_inputs_310p` | #51718/#54436;
use shared standardized layouts and retain the v0.29.0 InputBatch gate.
The rebase preserves vllm-ascend #16043's MTP copy tracking while
removing only legacy v0.28.0 allocation paths. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/_310p/worker/v2/rope.py`<br>`get_310p_rope_state` |
#56078; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/attention_v1.py`<br>`module imports/dispatch` |
#52839; both lanes use the common PCP import. Rebase keeps current
upstream graph code and removes only the v0.28.0 import branch. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/context_parallel/sfa_cp.py`<br>`module
imports/dispatch` | #52839; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/indexer.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/mla_v1.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/core/dyntra_lb_scheduler.py`<br>`module imports/dispatch`
| #51358, #54853; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/core/recompute_scheduler.py`<br>`module
imports/dispatch`, `schedule` | #51358, #54853; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/core/scheduler_profiling_chunk.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/core/kv_cache_interface.py`<br>`get_kv_cache_compression_ratio`,
`AscendMLAAttentionSpec`, `get_storage_block_size` | #51718, #53906;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/ascend_store/layerwise_cache_layout.py`<br>`_merge_specs`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/preempt_offload/manager.py`<br>`_derive_cpu_config`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/native/npu.py`<br>`create_worker`
| #52615; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/models/deepseek_mtp.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/deepseek_v4/indexer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/cache_config.py`<br>`make_tensor` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/kv_cache.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/kimi_k3_dspark.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/layer/attention/layer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_balance_schedule.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/platform/patch_kv_cache_coordinator.py`<br>`__init__`
| #53614; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_kv_cache_utils.py`<br>`module
imports/dispatch`, `_get_max_layers_per_page_size`,
`_ascend_max_memory_usage_bytes_from_groups`,
`_ascend_get_kv_cache_config_from_groups` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/patch/platform/patch_use_v2_model_runner.py`<br>`module
imports/dispatch`, `_patched_get_unsupported_features` | #53853, #53183;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py`<br>`bind_kv_cache` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py::bind_kv_cache` |
v0.29.0 has no ReplaySSM ring-tracker helper; fixed main requires it
after KV binding. Evidence: [#52506,
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`, worker-utils
diff](https://github.com/vllm-project/vllm/pull/52506/files#diff-645d58630d5acf3a0b07226bfef1e890a584c32502ab97c3d4642070f39a783c).
Keep an explicit v0.29.0 exclusion and preserve the fixed-main call. |
Failure reproduced on v0.29.0; Historical release/main NPU validation
passed; current-head CI pending |
| `vllm_ascend/patch/worker/patch_mamba_utils.py`<br>`module
imports/dispatch`, `_get_state_copy_funcs_for_layer` | #53896; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_v2/patch_attn_utils.py`<br>`module
imports/dispatch` | #51718; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/worker/patch_v2/patch_dspark.py`<br>`_load_dspark_model_with_target_quant`
| #50514, #52809; v0.29.0 keeps `get_pp_group` module-bound but imports
`_should_share` locally from Eagle utilities; fixed main removes the PP
guard. Keep the release `get_pp_group` patch, share through the common
Eagle utility, and delete the obsolete v0.28.0
`dspark_utils._should_share` patch. | Exact release failure reproduced;
Historical release/main CPU/NPU validation passed; current-head CI
pending |
|
`vllm_ascend/spec_decode/llm_base_proposer.py`<br>`model_returns_tuple`,
`__init__`, `set_inputs_first_pass` | #56078, #52861; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/utils.py`<br>`get_kv_cache_tensor_layers`,
`register_ascend_customop`, `vllm_version_is` | #52839, #51718, #52494;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/worker/model_runner_v1.py`<br>`_get_ascend_mamba_state_copy_funcs`,
`_allocate_kv_cache_tensors`, `_prepare_inputs`, `_dummy_run`,
`_reshape_kv_cache_tensors`, `get_kv_cache_spec`, NaN helpers |
#51718/#53896/#56078 plus #50323; remove v0.28.0 layouts/copy APIs and
import the NaN helpers directly because v0.29.0 and fixed main expose
the same contract. XD-RoPE remains explicitly gated to v0.29.0. | Static
checked; historical dual-version CPU/NPU validation passed; current-head
CI pending |
| `vllm_ascend/worker/v2/aclgraph_utils.py`<br>`capture` | #53869 makes
`pcp_manager` common to both lanes. The rebase preserves vllm-ascend
#16409's host-parameter-update revert and removes only the obsolete
v0.28.0 capture branch. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/attn_utils.py`<br>`get_kv_cache_spec`,
`_allocate_kv_cache`, `_reshape_kv_cache_v2` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/worker/v2/block_table.py`<br>`__init__`,
`init_block_table_layout_tensors`, `compute_slot_mappings` | #51718,
#51031; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/model_runner.py`<br>`module imports/dispatch`,
`prepare_inputs`, `__init__`, `sample_tokens`, `prepare_dummy_attn`,
`execute_model` | #50514, #54436, #52506, #55212, #53515; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/pcp_manager.py`<br>`partition_batch` | #53515;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/sample/gumbel.py`<br>`module imports/dispatch`
| #54282; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/__init__.py`<br>`init_speculator` |
#49811; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
|
`vllm_ascend/worker/v2/spec_decode/autoregressive/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dflash/speculator.py`<br>`module
imports/dispatch`, `propose` | #53694, #52188; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dspark/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/worker/worker.py`<br>`_scale_kv_cache_memory_for_multi_group`,
`wake_up` | #51718, #53508; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |






#### Exact upstream evidence











| Upstream change | Full commit SHA / direct diff | Actual supported
contracts and branch decision |
|---|---|---|





| #51718 |
`8bdc70ec7b379279ec0152343239c2d50aced687`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/51718/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Both use layers/layer_stride/block_stride/offset, tokens_per_state,
CircularBufferSpec and standardized backing; retire
shared_by/compress_ratio allocation branches. |
| #52839 |
`58e5ee0158b6a264c3506f00480e108a34b33ee3`<br>[vllm/v1/attention/ops/pcp.py](https://github.com/vllm-project/vllm/pull/52839/files#diff-23d7e7ab01a7f44414796e1e1b08cfa5277a05f54143ee2dd3a1041ca47772a8)
| Both import PCP operations from vllm.v1.attention.ops.pcp. |
| #53896 |
`e126687a9a828d513c01a07cd69f025f27d63280`<br>[vllm/v1/worker/mamba_utils.py](https://github.com/vllm-project/vllm/pull/53896/files#diff-8ab86225fa08e9a6700851191abcb3f4f8b0bba40e97a82aad700d7a23a4d7ec)
| Both use Mamba copy-function dictionaries and unwrap
UniformTypeKVCacheSpecs. |
| #53106 |
`1fe3a1571ac67581478a11743e55a306de1d136f`<br>[vllm/model_executor/models/utils.py](https://github.com/vllm-project/vllm/pull/53106/files#diff-b0ba1095e9881e5c87e33dfd20958d1e1ceafe8a4433aa692f468e61be130b21)
| Both use WeightsMapper instead of AutoWeightsLoader
skip_prefixes/skip_substrs. |
| #53906 |
`98ed0856f31fa3aaf5e27464e2b4ef5a8ee6b2f5`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/53906/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Only pinned main has the optional MLA storage_block_size dataclass
field; release keeps the Ascend derived property, using
tokens_per_state. |
| #56078 |
`719284fe158f1be8a9dd92953295fc9d49015730`<br>[vllm/config/model.py](https://github.com/vllm-project/vllm/pull/56078/files#diff-998c640befaf137b9af825f29f4e6e47d273caab1fd04093c97df24b18f5c417)
| Release retains uses_xdrope_dim and three M-RoPE dimensions; pinned
main uses mrope_num_dims and unified RoPE. |
| #52615 |
`138d137b5b955a5ebee98dfc946ecdd65d7b87ce`<br>[vllm/v1/kv_offload/cpu/spec.py](https://github.com/vllm-project/vllm/pull/52615/files#diff-7d073c26c9b22f74e9ff9e4c8da733d1807233edb83439fc64fbd48c43ae6045)
| Release uses num_blocks/kv_bytes_per_block; main uses
num_chunks/kv_bytes_per_chunk. |
| #51358 |
`6b110badbb22d3f66c7218b71138f13b7a6b3419`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/51358/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release now has boundary_state_offloads and KVConnectorBlockState;
remove partial_tail_offloads plumbing. |
| #54853 |
`0b066293f3c738a0cbd3a087bf893f2f4dcd61f2`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/54853/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release constructor takes block_ids snapshots; main takes req_ids and
resolve_block_ids. Keep exact release snapshot membership and main
lazy-resolution membership. |
| #53614 |
`144e79c8106da23141ac010394b782f730cc7fe8`<br>[vllm/v1/core/kv_cache_coordinator.py](https://github.com/vllm-project/vllm/pull/53614/files#diff-43875c71daa893ef7567e21633d9988c2baf95bef61e3a334a6d584d6444d725)
| Only main configures drop_eagle_checkpoint_block for replay-aligned
Mamba checkpoints. |
| #50514 |
`d87a440f88e28e5b37f9b1e22ce214d0426d5352`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Release retains module-level PP/share symbols and Ascend PP
workaround; main has the subsequent PP integration. |
| #52809 |
`91a893de64722019ea2faf852e06cabe143b3490`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Between v0.28.0 and v0.29.0, `_should_share` moved from a DSpark
module binding to a function-local import from Eagle utilities. The
shared Eagle patch remains effective; the old DSpark-module read/write
must be removed. |
| #54436 |
`6bafc049aae6c26e210162630914ee9177a4b586`<br>[vllm/v1/worker/gpu/input_batch.py](https://github.com/vllm-project/vllm/pull/54436/files#diff-106f39c08266f186830bb8fcd7fb1df35c0aaa5fd0ac5c17aac64aeddee48902)
| Release InputBatch requires max_seq_len_np; main removed it. |
| #52506 |
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52506/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Only main accepts valid_dummy_state_slots/valid_state_slots capture
arguments. |
| #55212 |
`83990f5bcc0b5eb08b2f1fd1b109fa8a31b122f3`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/55212/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Release prepares DCP local sequence lengths before partitioning; main
initializes DCP metadata afterwards. |
| #53515 |
`b1fbbc2ade51e3826bc92e4733c9c692ee21d42d`<br>[vllm/v1/worker/gpu/pcp_manager.py](https://github.com/vllm-project/vllm/pull/53515/files#diff-45dad5fe975c2ec8d02124fa65579cf11bfe9169a94217ceae1de0ea29518127)
| Both accept padded_num_tokens for persistent PCP input buffers. |
| #53869 |
`b3af042abd8fe5a297ec3ec72db276fd661a67b3`<br>[vllm/v1/worker/gpu/cudagraph_utils.py](https://github.com/vllm-project/vllm/pull/53869/files#diff-fc699ff1c69fd17adb60116b3a7a20aa88b5187205f589952d0f3792475ec212)
| Both accept pcp_manager during graph capture. |
| #51031 |
`0ecc284790e5403f74b899524ef82ecb69f83cb3`<br>[vllm/v1/worker/gpu/block_table.py](https://github.com/vllm-project/vllm/pull/51031/files#diff-21052649468f36e592c9ed378a9cd7b4615c558fb4d10f034f7b4268d3b6f9e1)
| Both distinguish KV and kernel block sizes during DCP slot mapping. |
| #54282 |
`fe755c88995ad468882517b6c4bdd60138d46a3a`<br>[vllm/v1/worker/gpu/sample/gumbel.py](https://github.com/vllm-project/vllm/pull/54282/files#diff-02f7c5a06a2d23d544a07d57af16c7ffb74886469c8844385f51a719e329e6b8)
| Both gumbel sampling APIs include is_drafting. |
| #52188 |
`d1e3eee6fb8ed3623241ef5c8e3ac533f775bff9`<br>[vllm/v1/worker/gpu/spec_decode/dflash/speculator.py](https://github.com/vllm-project/vllm/pull/52188/files#diff-0220b514682125dea26026db2d7caa1a0d9c772d84452e9e124434d1e11be5f0)
| Both DFlash input kernels take cp_rank/CP_SIZE/CP_INTERLEAVE. |
| #53694 |
`5acc1c4e4b8730298cbff7a4a7c68c814dc24fd7`<br>[vllm/v1/worker/gpu/spec_decode/autoregressive/speculator.py](https://github.com/vllm-project/vllm/pull/53694/files#diff-3e7e2ba21d64e309503b7c5fe537363a7669fa1baf84d3c2e4891d9aed64fbe6)
| Both propose APIs take DPSyncState; remove the obsolete token-count
argument and retain replicated-PCP synchronization. |
| #49811 |
`01af92e175407231b1433b0aef01a1b9c983d955`<br>[vllm/v1/worker/gpu/spec_decode/extract_hidden_states.py](https://github.com/vllm-project/vllm/pull/49811/files#diff-b13061cd1be0bc80aaa9fce208fe9128aaaad25b3832c5f1693da1d4e8263f5e)
| Both support extract_hidden_states on MRV2; remove old unsupported
dispatch/skip. |
| #53508 |
`479eeb32d2b432dbb4e442fbd3f94ca2eca35d67`<br>[vllm/v1/worker/gpu_model_runner.py](https://github.com/vllm-project/vllm/pull/53508/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29)
| Both remove post_kv_cache_wake_up; retire release-only call. |
| #52494 |
`3ff4f02dfe69abc1a0375d1ea8d8d5cb25609fcc`<br>[vllm/models/kimi_k3/amd/mla.py](https://github.com/vllm-project/vllm/pull/52494/files#diff-aad295e6de3607a46cea22f9f1cca768d4937dc5e1d3ca58105513358ed4e4c1)
| Only main provides KimiK3MultiHeadLatentAttentionWrapper; retain
release exclusion. |
| #52861 |
`b09bd69b5bf14911abef9a0e8e493b83c8a38fa6`<br>[vllm/v1/spec_decode/llm_base_proposer.py](https://github.com/vllm-project/vllm/pull/52861/files#diff-56fcad87dae9192cb0ab1643473765096cc44e1e744dccf3b99c4f2d85360d28)
| Both include DeepseekV32MTPModel in the two-hidden-state architecture
set. |
| #54713 |
`b28c3e1568bfae930f61d4b24940e47528c85d4a`<br>[vllm/v1/core/single_type_kv_cache_manager.py](https://github.com/vllm-project/vllm/pull/54713/files#diff-97c184a680b7a4bd7d58b11aa0073706533cc887d990eddb98469e7374025ab3)
| Only main takes replay_boundaries in compressed-prefix hit lookup;
preserve release calls without that keyword. |
| #42785 |
`442d36031ce710aa2a777c353becb660c57ab2bd`<br>[vllm/v1/worker/encoder_cudagraph.py](https://github.com/vllm-project/vllm/pull/42785/files#diff-287435cc78f753ae42acda542bca01c094557cd17db6bc2991d968fd012c1f18)
| Only main capture callers pass axis_keys; preserve the existing Ascend
rejection of nonempty axes. |
| #52358 |
`8f816a3f665489d7f0d222115d4f72ebab01076b`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52358/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Both ExecuteModelState have dp_sync; only main has cudagraph_stats. |
| #52789 |
`9eb9d9d3953959695108600c8ed33d36bc6a1e5f`<br>[vllm/v1/core/sched/scheduler.py](https://github.com/vllm-project/vllm/pull/52789/files#diff-9eeca590fd99f15621897e559dba39b3ec4e7c2c65ec3c3229711689e008b5f4)
| Release already has mamba_has_prefill_checkpoint_blocks; later main
also has fine-grained prefix-cache state. |
| #51251 |
`7bbbf7c8e5040f7ebd374e8cbc657e01af1136dd`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/51251/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| v0.29.0 and main expose ec_manager_config; retire the old release-only
ScoreEncoder configuration skip. |
| #53240 |
`b2db227a7c4c5e55f85524a094b607e5d27408b4`<br>[vllm/model_executor/layers/fused_moe/routed_experts_capturer.py](https://github.com/vllm-project/vllm/pull/53240/files#diff-0bbfc19dd02619bbcc948fa0281d4ab9a5b77b7d5062cde9911319c93089535c)
| v0.29.0 supports MRV2 routed-expert capture and unwraps uniform cache
groups; retire the old release-only replay skip. |
| #53853 |
`e376d45e82cb7e220da430e3179e81eb0922cf56`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53853/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both delegate PCP compatibility validation to the PCP manager. |
| #53183 |
`4aab2b0ebed20343efe543c633f71b3c1336d5b8`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53183/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both expose the V1 unsupported-feature helper used by the existing
Ascend MRV1 feature filter. |






#### Additional inherited contracts











| vllm-ascend change | Why it is required | Upstream cause and direct
link | Lane | Verification |
|---|---|---|---|---|





| `_310p/worker/v2/model_state.py`: remove tuple-return and RecoverSSM
v0.28 fallbacks | v0.29.0 and fixed main both return `dict[MambaSpec,
list[int]]` from `get_mamba_groups` and both initialize `recoverssm`;
keeping the old fallback would preserve an unsupported third contract |
[v0.29.0 mamba
groups](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/mamba_utils.py#L691-L704),
[fixed-main mamba
groups](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/mamba_utils.py#L691-L704),
[v0.29.0
RecoverSSM](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103),
[fixed-main
RecoverSSM](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103)
| both, common implementation | Existing constructor UT now asserts the
parent-created RecoverSSM value is retained; Ruff and compileall pass |
| `worker/v2/model_runner.py`: always forward
`kv_cache_allocation_context` | v0.29.0 and fixed main both accept this
keyword; the new-base gate was specifically for v0.28.0 | [v0.29.0
signature](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_runner.py#L533-L538),
[fixed-main
signature](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_runner.py#L561-L566),
[vllm-ascend
#16791](https://github.com/vllm-project/vllm-ascend/pull/16791/files) |
both, common implementation | Existing UT continues to assert the exact
context object reaches the parent; Ruff and compileall pass |
| `_310p/worker/v2/model_runner.py`: select the release KV-zeroing
contract with `vllm_version_is("0.29.0")` | v0.29.0 exposes
`KVCacheGroupSpec.is_eagle_group` but lacks
`SpeculativeConfig.use_eagle_block_drop`; fixed main added the method |
vLLM [#53388
diff](https://github.com/vllm-project/vllm/pull/53388/files), commit
[`481839ad9e5ebf87aecb54fa5c9d986bd5ea4b81`](vllm-project/vllm@481839a);
[v0.29.0 group
field](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/kv_cache_interface.py#L1200),
[fixed-main
helper](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/config/speculative.py#L1874-L1876)
| release differs from main | Existing two-path KV-zeroing UT retained
and renamed for v0.29.0; Ruff and compileall pass |
| existing DFlash kernel UT: remove v0.28-only kwarg omission | the
current Ascend kernel accepts the CP arguments and the only excluded
lane was v0.28.0, which this PR replaces | [vllm-ascend
#15098](https://github.com/vllm-project/vllm-ascend/pull/15098/files) |
both, common invocation | Existing NPU test remains enabled with all
assertions; Current-head CI pending |
| Ascend change | Why / upstream cause | Lane | Verification |





|---|---|---|---|





| `patch/platform/patch_parallel_config.py`, registration, and global
patch documentation | Allow Ascend PCP+DP by removing the generic GPU
restriction, following vLLM
[#54523](https://github.com/vllm-project/vllm/pull/54523/files), commit
`7c2f1ff4958eaf0818405e9192c71608fe4a16b1`. Preserve dynamic
`parallel_config.current_platform` lookup and rebuild ParallelConfig →
SpeculativeConfig → VllmConfig. | v0.29.0 only | Existing
configuration/EPLB UTs and historical PCP+DP NPU execution passed;
current-head CI pending. |
| `ops/triton/v2/sample/categorical_sample.py`, existing Gumbel UT |
Both supported contracts require `is_drafting`, from
[#54282](https://github.com/vllm-project/vllm/pull/54282/files),
`fe755c88995ad468882517b6c4bdd60138d46a3a`; preserve the inherited
optimized kernel and use a common wrapper. | Both | Existing positive
drafting assertion retained; current-head CI pending. |
| `patch/platform/patch_kv_cache_coordinator.py`, existing prefix-cache
UT | Both support `cache_hit_alignment_tokens`, introduced by
[#53598](https://github.com/vllm-project/vllm/pull/53598/files),
`2ba984a5d06db414f3b2474fe9338faf6cd80a1c`; retire the v0.28-only
write-mask branch. | Both | Existing assertions retained; current-head
CI pending. |






#### Rebase and retired-fallback evidence











| Change | Exact source evidence | Decision |





|---|---|---|





| `tests/e2e/conftest.py::PROMPT_CONFIGS[HunyuanOCR]` | vLLM
[#53272](https://github.com/vllm-project/vllm/pull/53272/files#diff-0852f1e9753819abe4f85380abdc0660fd4a998f44bd7bb73d68f462bd776d95),
`d53b1c2efc0ca7161c3844f51ca9acbcdb7129d5` removes native Hunyuan V1/VL
before v0.29.0; both exact supported sources lack it. The old
conditional came from vllm-ascend
[#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-824bc3e5c28226a3c0f4581750fa93a7da7001aff9e0ff4aee4131e3edd7b144),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Remove the v0.28.0
selector and use the existing exclusion for both supported lanes. This
does not migrate the protected SFA PCP skip or add a v0.29.0 accuracy
skip. |
| `vllm_ascend/worker/model_runner_v1.py` NaN helper imports and
`tests/ut/worker/test_model_runner_v1_nan_detection.py` | vLLM
[#50323](https://github.com/vllm-project/vllm/pull/50323/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29),
`12292d94b25869be2af6b6d4f8eea6c2445e935f`; both exact sources export
`nans_to_dict`, `gpu_sync_allowed`, and `raise_if_nan_logits`. The
v0.28.0 fallback originated in vllm-ascend
[#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-c49594855b615477bbc34f06d2d423a7dd84c021a7925cd1f61fdb79cb814c08),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Delete
import-failure/`None` fallbacks and the existing UT's obsolete
availability skip; assertions remain unchanged and execute on both
lanes. |
| `vllm_ascend/worker/v2/aclgraph_utils.py` | vllm-ascend
[#16409](https://github.com/vllm-project/vllm-ascend/pull/16409/files#diff-dc1c8a80dadf23627467bf04d6bc59fe13c6d075b7d2564d0acc07dc97d921f3),
`799801feef347469d5e9b39374b9210e0d4f7431`. | Preserve the upstream
revert while resolving the real rebase conflict; do not reintroduce the
reverted graph-update behavior. |
| `vllm_ascend/_310p/worker/v2/model_runner.py` | vllm-ascend
[#16043](https://github.com/vllm-project/vllm-ascend/pull/16043/files#diff-2f27611a7cfbbdb780b9e88157f05d14d6dfe65406c8d66a5ba1f6949124f5d2),
`d4d2957e5208c2f464d4625c05920bd29ea233cb`. | Preserve the newly merged
310P MTP copy tracking and remove only the v0.28.0 descriptor/allocation
branch. |






</details>













</details>



### Does this PR introduce _any_ user-facing change?



Yes. The supported vLLM release and default container builds move to
v0.29.0, while the fixed main remains supported. The vllm-ascend package
version does not change. Existing 0.29-only PCP+DP compatibility is
restored.


### How was this patch tested?

- Final E2E result for head `a3b76b073a201851454e873aa89fc2254992fc06`:
[run
35504646654](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646654)
succeeded (39 successful jobs, 6 skipped). Raw logs from all 32 selected
NPU jobs confirm the requested Ascend head, integration base
`2de71b594319bde52c8bded69eba154f50be8e75`, and the actual vLLM
pins/installations: fixed main
`84030bbe3d74d99bad477a3d2e37a973ccd8865c` /
`0.1.dev1+g84030bbe3.empty`, release
`98dff2a81d747d1dba01a47f939f48c3526d4206` / `0.29.0+empty`. Each lane
totals **563 passed, 35 skipped, 1 xfailed** across its selected pytest
invocations. Skips/xfails are not passes. The resulting rebased
integration commit is not printed and is not inferred. Actual release
CPU and failed/cancelled image variants remain gaps.


- Current-head CI update (2026-09-20): [main CPU
UT](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646654/job/106062951955)
passed **5157 tests**, with **67 skipped**; actual installed vLLM was
`0.1.dev1+g84030bbe3.empty`. Ascend checkout was the current PR head;
the log does not print the full resulting integration head/base.
Pre-commit and mypy passed. NPU/E2E results are recorded above; actual
release CPU remains unverified.
- Image build is partially blocked by infrastructure: A5 amd64
[Ubuntu](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062362005)
and
[openEuler](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062362068)
failed before reading the Dockerfile because BuildKit could not create a
snapshot temporary directory (`no space left on device`). No release
compatibility code change is justified by this failure; cancelled
variants remain unverified. The successful [310P openEuler arm64
build](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062361987)
explicitly checked out release
`98dff2a81d747d1dba01a47f939f48c3526d4206` and installed `0.29.0+empty`;
this is build evidence, not runtime UT coverage.


- Current head: `a3b76b073a201851454e873aa89fc2254992fc06`, rebased onto
the baseline above. Previous-head CPU [job
106060931458](https://github.com/vllm-project/vllm-ascend/actions/runs/35503843936/job/106060931458)
stopped during Ascend integration rebase after #16803 merged, before any
UT ran. Its vLLM checkout was the fixed main and installation reported
`0.1.dev1+g84030bbe3.empty`. The two import conflicts are resolved;
fresh-head CI was retriggered by the push.


- Remote official v0.29.0 tag resolved to the exact SHA above; both
source pins inspected.
- All 95 changed Python files pass Ruff lint, Ruff format and AST
parsing; `git diff --check` passes. Dockerfile tag/marker consistency
checked across all eight variants.
- Full pre-commit invocation: Ruff, codespell, typos, clang-format,
markdownlint, actionlint, package-init, forbidden-import and
boolean-context checks passed. Bash-dependent hooks cannot run on this
Windows host; Python launcher hooks exit 9009. Full CI lint remains
pending.
- Actual main/release CPU/NPU and image builds are not claimed locally:
the required Linux/NPU/container environment is unavailable. New PR E2E
and image-build CI are requested. Existing CPU workflow runs fixed main
only, so actual release CPU remains a validation gap.
- #16393's historical green CI is not a substitute for this new head. No
new test functions, workflow changes, golden/threshold changes or
additional skips are introduced beyond restoring #16393. Inherited
0.28-only tests/skips are not counted as passes.

- vLLM main:
vllm-project/vllm@84030bb

Signed-off-by: shenzhao <shenzhao9@huawei.com>
Co-authored-by: shenzhao <shenzhao9@huawei.com>
xqchen7 pushed a commit to xqchen7/vllm-ascend that referenced this pull request Sep 22, 2026
…oject#16393)

### What this PR does / why we need it?





Upgrade the supported vLLM release dependency from **v0.28.0 to the
official v0.29.0**, alongside the fixed vLLM main commit inherited from
vllm-project#16216 (already merged).



| Reference | Commit |


|---|---|


| vllm-ascend rebase base | `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c` |
| PR head | `8c5d785931c495701bf1da8b5bc80b321ebd3cd0` |


| Fixed vLLM main | `84030bbe3d74d99bad477a3d2e37a973ccd8865c` |


| Previous release: v0.28.0 | `2cf0a6915ce544dc493a0990f2ea38d81601128a`
|
| Target release: v0.29.0 | `98dff2a81d747d1dba01a47f939f48c3526d4206` |



- Use common implementations where v0.29.0 and the fixed main share
KV-cache layouts, Mamba copy/group APIs, PCP handling and
speculative-decoding contracts.
- Retain explicit `vllm_version_is("0.29.0")` branches for contracts
that still differ, including RoPE, scheduler block snapshots,
InputBatch, ReplaySSM, KV zeroing and DSpark PP handling.
- Remove obsolete v0.28.0 compatibility and adapt existing test
fixtures. Version detection uses package versions and the explicit
`VLLM_VERSION` override, with local-version suffix handling and UT
environment isolation retained; no hard-coded release-SHA inference
remains.
- Apply the Ascend PCP+DP validator patch only to v0.29.0, preserving
other validations and EPLB platform binding. Rebuild dependent Pydantic
schemas so nested configuration validation uses the patched validator.
The global patch documentation records its rationale and removal
criteria.



- Preserve vllm-project#15747's Spec+PP protocol/partition handling after rebase;
use the common exact-release selector and the real function-local DSpark
sharing import.



This release-only upgrade does not require a new main old-to-new
interface scan. The latest rebase incorporates
[vllm-project#16905](https://github.com/vllm-project/vllm-ascend/pull/16905/files),
which reverted vllm-project#16544 at `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c`. The
now-unnecessary V4.1 drafter import gate and tuple annotation have been
removed. Other release adaptations, including vllm-project#15747 Spec+PP handling,
remain. Detailed contract evidence is retained below for review.



<details>


<summary>Per-file adaptations and exact upstream evidence</summary>





#### Per-file adaptation ledger





Evidence IDs refer to the exact source contract and upstream diff table
below. Every row is syntax checked; branch-normalized AST comparison
confirms unchanged main function bodies except the version identity
helper and the explicitly retired propose argument/type annotations.
Both supported versions completed CPU and NPU execution as recorded
below.



| Ascend file / symbols | Disposition and upstream evidence |
Verification |
|---|---|---|


| `vllm_ascend/patch/worker/patch_v2/patch_dspark.py` /
`_load_dspark_model_with_target_quant`;
`tests/ut/patch/worker/test_patch_dspark_pp.py` | Preserve rebased
[Ascend
vllm-project#15747](https://github.com/vllm-project/vllm-ascend/pull/15747/files#diff-a170a42fe1e9275c999642b05c4a437d0c9104dd8ea19151796142909b00ab2a)
(`82df9d871`), including manual PP partition masking. vLLM [#52809
diff](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`91a893de64722019ea2faf852e06cabe143b3490`) moved `_should_share`
inside the loader on both supported pins, so retain the earlier release
fix: patch `eagle_utils`, never read/patch a nonexistent
`dspark_utils._should_share`. v0.29 keeps its global PP guard; main has
native PP via
[#50514](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`d87a440f88e28e5b37f9b1e22ce214d0426d5352`). | Existing UT now checks
the real function-local import, absent module alias, and restoration on
success/failure for both lanes; partition and PP assertions retained.
Ruff/syntax pass; actual CPU/NPU pending. |
| `vllm_ascend/worker/v2/pp_utils.py` / `use_legacy_spec_pp`;
`tests/ut/worker/v2/test_pp_utils.py` | vllm-project#15747 added broad 0.28/0.29
routing and an obsolete 0.28 dev-build recognition path. For the two
supported pins, #50514 exists only on fixed main. Route through
`vllm_version_is("0.29.0")`; retain package/local-suffix and explicit
environment-override semantics. No release-SHA inference or third
release lane. | Existing UTs exercise the real uncached version helper
with monkeypatch isolation, local suffix, fixed-main dev string,
explicit override, and non-target versions. Isolated routing checks and
Ruff/syntax pass; full CPU UT pending. |
| `vllm_ascend/_310p/model_runner_310p.py`<br>`_prepare_inputs`,
`_allocate_kv_cache_tensors` | #51718, #56078; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/spec_decode/llm_base_proposer_310.py`<br>`set_inputs_first_pass`
| #56078; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/worker/v2/model_runner.py`<br>`initialize_kv_cache`,
`_allocate_kv_cache_tensors`, `_prepare_inputs_310p` | #51718/#54436;
use shared standardized layouts and retain the v0.29.0 InputBatch gate.
The rebase preserves vllm-ascend vllm-project#16043's MTP copy tracking while
removing only legacy v0.28.0 allocation paths. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/_310p/worker/v2/rope.py`<br>`get_310p_rope_state` |
#56078; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/attention_v1.py`<br>`module imports/dispatch` |
#52839; both lanes use the common PCP import. Rebase keeps current
upstream graph code and removes only the v0.28.0 import branch. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/context_parallel/sfa_cp.py`<br>`module
imports/dispatch` | #52839; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/indexer.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/mla_v1.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/core/dyntra_lb_scheduler.py`<br>`module imports/dispatch`
| #51358, #54853; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/core/recompute_scheduler.py`<br>`module
imports/dispatch`, `schedule` | #51358, #54853; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/core/scheduler_profiling_chunk.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/core/kv_cache_interface.py`<br>`get_kv_cache_compression_ratio`,
`AscendMLAAttentionSpec`, `get_storage_block_size` | #51718, #53906;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/ascend_store/layerwise_cache_layout.py`<br>`_merge_specs`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/preempt_offload/manager.py`<br>`_derive_cpu_config`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/native/npu.py`<br>`create_worker`
| #52615; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/models/deepseek_mtp.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/deepseek_v4/indexer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/cache_config.py`<br>`make_tensor` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/kv_cache.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/kimi_k3_dspark.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/layer/attention/layer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_balance_schedule.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/platform/patch_kv_cache_coordinator.py`<br>`__init__`
| #53614; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_kv_cache_utils.py`<br>`module
imports/dispatch`, `_get_max_layers_per_page_size`,
`_ascend_max_memory_usage_bytes_from_groups`,
`_ascend_get_kv_cache_config_from_groups` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/patch/platform/patch_use_v2_model_runner.py`<br>`module
imports/dispatch`, `_patched_get_unsupported_features` | #53853, #53183;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py`<br>`bind_kv_cache` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py::bind_kv_cache` |
v0.29.0 has no ReplaySSM ring-tracker helper; fixed main requires it
after KV binding. Evidence: [#52506,
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`, worker-utils
diff](https://github.com/vllm-project/vllm/pull/52506/files#diff-645d58630d5acf3a0b07226bfef1e890a584c32502ab97c3d4642070f39a783c).
Keep an explicit v0.29.0 exclusion and preserve the fixed-main call. |
Failure reproduced on v0.29.0; Historical release/main NPU validation
passed; current-head CI pending |
| `vllm_ascend/patch/worker/patch_mamba_utils.py`<br>`module
imports/dispatch`, `_get_state_copy_funcs_for_layer` | #53896; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_v2/patch_attn_utils.py`<br>`module
imports/dispatch` | #51718; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/worker/patch_v2/patch_dspark.py`<br>`_load_dspark_model_with_target_quant`
| #50514, #52809; v0.29.0 keeps `get_pp_group` module-bound but imports
`_should_share` locally from Eagle utilities; fixed main removes the PP
guard. Keep the release `get_pp_group` patch, share through the common
Eagle utility, and delete the obsolete v0.28.0
`dspark_utils._should_share` patch. | Exact release failure reproduced;
Historical release/main CPU/NPU validation passed; current-head CI
pending |
|
`vllm_ascend/spec_decode/llm_base_proposer.py`<br>`model_returns_tuple`,
`__init__`, `set_inputs_first_pass` | #56078, #52861; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/utils.py`<br>`get_kv_cache_tensor_layers`,
`register_ascend_customop`, `vllm_version_is` | #52839, #51718, #52494;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/worker/model_runner_v1.py`<br>`_get_ascend_mamba_state_copy_funcs`,
`_allocate_kv_cache_tensors`, `_prepare_inputs`, `_dummy_run`,
`_reshape_kv_cache_tensors`, `get_kv_cache_spec`, NaN helpers |
#51718/#53896/#56078 plus #50323; remove v0.28.0 layouts/copy APIs and
import the NaN helpers directly because v0.29.0 and fixed main expose
the same contract. XD-RoPE remains explicitly gated to v0.29.0. | Static
checked; historical dual-version CPU/NPU validation passed; current-head
CI pending |
| `vllm_ascend/worker/v2/aclgraph_utils.py`<br>`capture` | #53869 makes
`pcp_manager` common to both lanes. The rebase preserves vllm-ascend
vllm-project#16409's host-parameter-update revert and removes only the obsolete
v0.28.0 capture branch. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/attn_utils.py`<br>`get_kv_cache_spec`,
`_allocate_kv_cache`, `_reshape_kv_cache_v2` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/worker/v2/block_table.py`<br>`__init__`,
`init_block_table_layout_tensors`, `compute_slot_mappings` | #51718,
#51031; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/model_runner.py`<br>`module imports/dispatch`,
`prepare_inputs`, `__init__`, `sample_tokens`, `prepare_dummy_attn`,
`execute_model` | #50514, #54436, #52506, #55212, #53515; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/pcp_manager.py`<br>`partition_batch` | #53515;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/sample/gumbel.py`<br>`module imports/dispatch`
| #54282; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/__init__.py`<br>`init_speculator` |
#49811; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
|
`vllm_ascend/worker/v2/spec_decode/autoregressive/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dflash/speculator.py`<br>`module
imports/dispatch`, `propose` | #53694, #52188; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dspark/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/worker/worker.py`<br>`_scale_kv_cache_memory_for_multi_group`,
`wake_up` | #51718, #53508; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |



#### Exact upstream evidence





| Upstream change | Full commit SHA / direct diff | Actual supported
contracts and branch decision |
|---|---|---|


| #51718 |
`8bdc70ec7b379279ec0152343239c2d50aced687`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/51718/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Both use layers/layer_stride/block_stride/offset, tokens_per_state,
CircularBufferSpec and standardized backing; retire
shared_by/compress_ratio allocation branches. |
| #52839 |
`58e5ee0158b6a264c3506f00480e108a34b33ee3`<br>[vllm/v1/attention/ops/pcp.py](https://github.com/vllm-project/vllm/pull/52839/files#diff-23d7e7ab01a7f44414796e1e1b08cfa5277a05f54143ee2dd3a1041ca47772a8)
| Both import PCP operations from vllm.v1.attention.ops.pcp. |
| #53896 |
`e126687a9a828d513c01a07cd69f025f27d63280`<br>[vllm/v1/worker/mamba_utils.py](https://github.com/vllm-project/vllm/pull/53896/files#diff-8ab86225fa08e9a6700851191abcb3f4f8b0bba40e97a82aad700d7a23a4d7ec)
| Both use Mamba copy-function dictionaries and unwrap
UniformTypeKVCacheSpecs. |
| #53106 |
`1fe3a1571ac67581478a11743e55a306de1d136f`<br>[vllm/model_executor/models/utils.py](https://github.com/vllm-project/vllm/pull/53106/files#diff-b0ba1095e9881e5c87e33dfd20958d1e1ceafe8a4433aa692f468e61be130b21)
| Both use WeightsMapper instead of AutoWeightsLoader
skip_prefixes/skip_substrs. |
| #53906 |
`98ed0856f31fa3aaf5e27464e2b4ef5a8ee6b2f5`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/53906/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Only pinned main has the optional MLA storage_block_size dataclass
field; release keeps the Ascend derived property, using
tokens_per_state. |
| #56078 |
`719284fe158f1be8a9dd92953295fc9d49015730`<br>[vllm/config/model.py](https://github.com/vllm-project/vllm/pull/56078/files#diff-998c640befaf137b9af825f29f4e6e47d273caab1fd04093c97df24b18f5c417)
| Release retains uses_xdrope_dim and three M-RoPE dimensions; pinned
main uses mrope_num_dims and unified RoPE. |
| #52615 |
`138d137b5b955a5ebee98dfc946ecdd65d7b87ce`<br>[vllm/v1/kv_offload/cpu/spec.py](https://github.com/vllm-project/vllm/pull/52615/files#diff-7d073c26c9b22f74e9ff9e4c8da733d1807233edb83439fc64fbd48c43ae6045)
| Release uses num_blocks/kv_bytes_per_block; main uses
num_chunks/kv_bytes_per_chunk. |
| #51358 |
`6b110badbb22d3f66c7218b71138f13b7a6b3419`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/51358/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release now has boundary_state_offloads and KVConnectorBlockState;
remove partial_tail_offloads plumbing. |
| #54853 |
`0b066293f3c738a0cbd3a087bf893f2f4dcd61f2`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/54853/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release constructor takes block_ids snapshots; main takes req_ids and
resolve_block_ids. Keep exact release snapshot membership and main
lazy-resolution membership. |
| #53614 |
`144e79c8106da23141ac010394b782f730cc7fe8`<br>[vllm/v1/core/kv_cache_coordinator.py](https://github.com/vllm-project/vllm/pull/53614/files#diff-43875c71daa893ef7567e21633d9988c2baf95bef61e3a334a6d584d6444d725)
| Only main configures drop_eagle_checkpoint_block for replay-aligned
Mamba checkpoints. |
| #50514 |
`d87a440f88e28e5b37f9b1e22ce214d0426d5352`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Release retains module-level PP/share symbols and Ascend PP
workaround; main has the subsequent PP integration. |
| #52809 |
`91a893de64722019ea2faf852e06cabe143b3490`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Between v0.28.0 and v0.29.0, `_should_share` moved from a DSpark
module binding to a function-local import from Eagle utilities. The
shared Eagle patch remains effective; the old DSpark-module read/write
must be removed. |
| #54436 |
`6bafc049aae6c26e210162630914ee9177a4b586`<br>[vllm/v1/worker/gpu/input_batch.py](https://github.com/vllm-project/vllm/pull/54436/files#diff-106f39c08266f186830bb8fcd7fb1df35c0aaa5fd0ac5c17aac64aeddee48902)
| Release InputBatch requires max_seq_len_np; main removed it. |
| #52506 |
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52506/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Only main accepts valid_dummy_state_slots/valid_state_slots capture
arguments. |
| #55212 |
`83990f5bcc0b5eb08b2f1fd1b109fa8a31b122f3`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/55212/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Release prepares DCP local sequence lengths before partitioning; main
initializes DCP metadata afterwards. |
| #53515 |
`b1fbbc2ade51e3826bc92e4733c9c692ee21d42d`<br>[vllm/v1/worker/gpu/pcp_manager.py](https://github.com/vllm-project/vllm/pull/53515/files#diff-45dad5fe975c2ec8d02124fa65579cf11bfe9169a94217ceae1de0ea29518127)
| Both accept padded_num_tokens for persistent PCP input buffers. |
| #53869 |
`b3af042abd8fe5a297ec3ec72db276fd661a67b3`<br>[vllm/v1/worker/gpu/cudagraph_utils.py](https://github.com/vllm-project/vllm/pull/53869/files#diff-fc699ff1c69fd17adb60116b3a7a20aa88b5187205f589952d0f3792475ec212)
| Both accept pcp_manager during graph capture. |
| #51031 |
`0ecc284790e5403f74b899524ef82ecb69f83cb3`<br>[vllm/v1/worker/gpu/block_table.py](https://github.com/vllm-project/vllm/pull/51031/files#diff-21052649468f36e592c9ed378a9cd7b4615c558fb4d10f034f7b4268d3b6f9e1)
| Both distinguish KV and kernel block sizes during DCP slot mapping. |
| #54282 |
`fe755c88995ad468882517b6c4bdd60138d46a3a`<br>[vllm/v1/worker/gpu/sample/gumbel.py](https://github.com/vllm-project/vllm/pull/54282/files#diff-02f7c5a06a2d23d544a07d57af16c7ffb74886469c8844385f51a719e329e6b8)
| Both gumbel sampling APIs include is_drafting. |
| #52188 |
`d1e3eee6fb8ed3623241ef5c8e3ac533f775bff9`<br>[vllm/v1/worker/gpu/spec_decode/dflash/speculator.py](https://github.com/vllm-project/vllm/pull/52188/files#diff-0220b514682125dea26026db2d7caa1a0d9c772d84452e9e124434d1e11be5f0)
| Both DFlash input kernels take cp_rank/CP_SIZE/CP_INTERLEAVE. |
| #53694 |
`5acc1c4e4b8730298cbff7a4a7c68c814dc24fd7`<br>[vllm/v1/worker/gpu/spec_decode/autoregressive/speculator.py](https://github.com/vllm-project/vllm/pull/53694/files#diff-3e7e2ba21d64e309503b7c5fe537363a7669fa1baf84d3c2e4891d9aed64fbe6)
| Both propose APIs take DPSyncState; remove the obsolete token-count
argument and retain replicated-PCP synchronization. |
| #49811 |
`01af92e175407231b1433b0aef01a1b9c983d955`<br>[vllm/v1/worker/gpu/spec_decode/extract_hidden_states.py](https://github.com/vllm-project/vllm/pull/49811/files#diff-b13061cd1be0bc80aaa9fce208fe9128aaaad25b3832c5f1693da1d4e8263f5e)
| Both support extract_hidden_states on MRV2; remove old unsupported
dispatch/skip. |
| #53508 |
`479eeb32d2b432dbb4e442fbd3f94ca2eca35d67`<br>[vllm/v1/worker/gpu_model_runner.py](https://github.com/vllm-project/vllm/pull/53508/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29)
| Both remove post_kv_cache_wake_up; retire release-only call. |
| #52494 |
`3ff4f02dfe69abc1a0375d1ea8d8d5cb25609fcc`<br>[vllm/models/kimi_k3/amd/mla.py](https://github.com/vllm-project/vllm/pull/52494/files#diff-aad295e6de3607a46cea22f9f1cca768d4937dc5e1d3ca58105513358ed4e4c1)
| Only main provides KimiK3MultiHeadLatentAttentionWrapper; retain
release exclusion. |
| #52861 |
`b09bd69b5bf14911abef9a0e8e493b83c8a38fa6`<br>[vllm/v1/spec_decode/llm_base_proposer.py](https://github.com/vllm-project/vllm/pull/52861/files#diff-56fcad87dae9192cb0ab1643473765096cc44e1e744dccf3b99c4f2d85360d28)
| Both include DeepseekV32MTPModel in the two-hidden-state architecture
set. |
| #54713 |
`b28c3e1568bfae930f61d4b24940e47528c85d4a`<br>[vllm/v1/core/single_type_kv_cache_manager.py](https://github.com/vllm-project/vllm/pull/54713/files#diff-97c184a680b7a4bd7d58b11aa0073706533cc887d990eddb98469e7374025ab3)
| Only main takes replay_boundaries in compressed-prefix hit lookup;
preserve release calls without that keyword. |
| #42785 |
`442d36031ce710aa2a777c353becb660c57ab2bd`<br>[vllm/v1/worker/encoder_cudagraph.py](https://github.com/vllm-project/vllm/pull/42785/files#diff-287435cc78f753ae42acda542bca01c094557cd17db6bc2991d968fd012c1f18)
| Only main capture callers pass axis_keys; preserve the existing Ascend
rejection of nonempty axes. |
| #52358 |
`8f816a3f665489d7f0d222115d4f72ebab01076b`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52358/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Both ExecuteModelState have dp_sync; only main has cudagraph_stats. |
| #52789 |
`9eb9d9d3953959695108600c8ed33d36bc6a1e5f`<br>[vllm/v1/core/sched/scheduler.py](https://github.com/vllm-project/vllm/pull/52789/files#diff-9eeca590fd99f15621897e559dba39b3ec4e7c2c65ec3c3229711689e008b5f4)
| Release already has mamba_has_prefill_checkpoint_blocks; later main
also has fine-grained prefix-cache state. |
| #51251 |
`7bbbf7c8e5040f7ebd374e8cbc657e01af1136dd`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/51251/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| v0.29.0 and main expose ec_manager_config; retire the old release-only
ScoreEncoder configuration skip. |
| #53240 |
`b2db227a7c4c5e55f85524a094b607e5d27408b4`<br>[vllm/model_executor/layers/fused_moe/routed_experts_capturer.py](https://github.com/vllm-project/vllm/pull/53240/files#diff-0bbfc19dd02619bbcc948fa0281d4ab9a5b77b7d5062cde9911319c93089535c)
| v0.29.0 supports MRV2 routed-expert capture and unwraps uniform cache
groups; retire the old release-only replay skip. |
| #53853 |
`e376d45e82cb7e220da430e3179e81eb0922cf56`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53853/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both delegate PCP compatibility validation to the PCP manager. |
| #53183 |
`4aab2b0ebed20343efe543c633f71b3c1336d5b8`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53183/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both expose the V1 unsupported-feature helper used by the existing
Ascend MRV1 feature filter. |



#### Additional inherited contracts





| vllm-ascend change | Why it is required | Upstream cause and direct
link | Lane | Verification |
|---|---|---|---|---|


| `_310p/worker/v2/model_state.py`: remove tuple-return and RecoverSSM
v0.28 fallbacks | v0.29.0 and fixed main both return `dict[MambaSpec,
list[int]]` from `get_mamba_groups` and both initialize `recoverssm`;
keeping the old fallback would preserve an unsupported third contract |
[v0.29.0 mamba
groups](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/mamba_utils.py#L691-L704),
[fixed-main mamba
groups](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/mamba_utils.py#L691-L704),
[v0.29.0
RecoverSSM](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103),
[fixed-main
RecoverSSM](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103)
| both, common implementation | Existing constructor UT now asserts the
parent-created RecoverSSM value is retained; Ruff and compileall pass |
| `worker/v2/model_runner.py`: always forward
`kv_cache_allocation_context` | v0.29.0 and fixed main both accept this
keyword; the new-base gate was specifically for v0.28.0 | [v0.29.0
signature](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_runner.py#L533-L538),
[fixed-main
signature](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_runner.py#L561-L566),
[vllm-ascend
vllm-project#16791](https://github.com/vllm-project/vllm-ascend/pull/16791/files) |
both, common implementation | Existing UT continues to assert the exact
context object reaches the parent; Ruff and compileall pass |
| `_310p/worker/v2/model_runner.py`: select the release KV-zeroing
contract with `vllm_version_is("0.29.0")` | v0.29.0 exposes
`KVCacheGroupSpec.is_eagle_group` but lacks
`SpeculativeConfig.use_eagle_block_drop`; fixed main added the method |
vLLM [#53388
diff](https://github.com/vllm-project/vllm/pull/53388/files), commit
[`481839ad9e5ebf87aecb54fa5c9d986bd5ea4b81`](vllm-project/vllm@481839a);
[v0.29.0 group
field](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/kv_cache_interface.py#L1200),
[fixed-main
helper](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/config/speculative.py#L1874-L1876)
| release differs from main | Existing two-path KV-zeroing UT retained
and renamed for v0.29.0; Ruff and compileall pass |
| existing DFlash kernel UT: remove v0.28-only kwarg omission | the
current Ascend kernel accepts the CP arguments and the only excluded
lane was v0.28.0, which this PR replaces | [vllm-ascend
vllm-project#15098](https://github.com/vllm-project/vllm-ascend/pull/15098/files) |
both, common invocation | Existing NPU test remains enabled with all
assertions; Current-head CI pending |
| Ascend change | Why / upstream cause | Lane | Verification |


|---|---|---|---|


| `patch/platform/patch_parallel_config.py`, registration, and global
patch documentation | Allow Ascend PCP+DP by removing the generic GPU
restriction, following vLLM
[#54523](https://github.com/vllm-project/vllm/pull/54523/files), commit
`7c2f1ff4958eaf0818405e9192c71608fe4a16b1`. Preserve dynamic
`parallel_config.current_platform` lookup and rebuild ParallelConfig →
SpeculativeConfig → VllmConfig. | v0.29.0 only | Existing
configuration/EPLB UTs and historical PCP+DP NPU execution passed;
current-head CI pending. |
| `ops/triton/v2/sample/categorical_sample.py`, existing Gumbel UT |
Both supported contracts require `is_drafting`, from
[#54282](https://github.com/vllm-project/vllm/pull/54282/files),
`fe755c88995ad468882517b6c4bdd60138d46a3a`; preserve the inherited
optimized kernel and use a common wrapper. | Both | Existing positive
drafting assertion retained; current-head CI pending. |
| `patch/platform/patch_kv_cache_coordinator.py`, existing prefix-cache
UT | Both support `cache_hit_alignment_tokens`, introduced by
[#53598](https://github.com/vllm-project/vllm/pull/53598/files),
`2ba984a5d06db414f3b2474fe9338faf6cd80a1c`; retire the v0.28-only
write-mask branch. | Both | Existing assertions retained; current-head
CI pending. |



#### Rebase and retired-fallback evidence





| Change | Exact source evidence | Decision |


|---|---|---|


| `tests/e2e/conftest.py::PROMPT_CONFIGS[HunyuanOCR]` | vLLM
[#53272](https://github.com/vllm-project/vllm/pull/53272/files#diff-0852f1e9753819abe4f85380abdc0660fd4a998f44bd7bb73d68f462bd776d95),
`d53b1c2efc0ca7161c3844f51ca9acbcdb7129d5` removes native Hunyuan V1/VL
before v0.29.0; both exact supported sources lack it. The old
conditional came from vllm-ascend
[vllm-project#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-824bc3e5c28226a3c0f4581750fa93a7da7001aff9e0ff4aee4131e3edd7b144),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Remove the v0.28.0
selector and use the existing exclusion for both supported lanes. This
does not migrate the protected SFA PCP skip or add a v0.29.0 accuracy
skip. |
| `vllm_ascend/worker/model_runner_v1.py` NaN helper imports and
`tests/ut/worker/test_model_runner_v1_nan_detection.py` | vLLM
[#50323](https://github.com/vllm-project/vllm/pull/50323/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29),
`12292d94b25869be2af6b6d4f8eea6c2445e935f`; both exact sources export
`nans_to_dict`, `gpu_sync_allowed`, and `raise_if_nan_logits`. The
v0.28.0 fallback originated in vllm-ascend
[vllm-project#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-c49594855b615477bbc34f06d2d423a7dd84c021a7925cd1f61fdb79cb814c08),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Delete
import-failure/`None` fallbacks and the existing UT's obsolete
availability skip; assertions remain unchanged and execute on both
lanes. |
| `vllm_ascend/worker/v2/aclgraph_utils.py` | vllm-ascend
[vllm-project#16409](https://github.com/vllm-project/vllm-ascend/pull/16409/files#diff-dc1c8a80dadf23627467bf04d6bc59fe13c6d075b7d2564d0acc07dc97d921f3),
`799801feef347469d5e9b39374b9210e0d4f7431`. | Preserve the upstream
revert while resolving the real rebase conflict; do not reintroduce the
reverted graph-update behavior. |
| `vllm_ascend/_310p/worker/v2/model_runner.py` | vllm-ascend
[vllm-project#16043](https://github.com/vllm-project/vllm-ascend/pull/16043/files#diff-2f27611a7cfbbdb780b9e88157f05d14d6dfe65406c8d66a5ba1f6949124f5d2),
`d4d2957e5208c2f464d4625c05920bd29ea233cb`. | Preserve the newly merged
310P MTP copy tracking and remove only the v0.28.0 descriptor/allocation
branch. |



</details>





### Does this PR introduce _any_ user-facing change?





Yes. The supported release changes from vLLM v0.28.0 to v0.29.0, and
Ascend PCP+DP is enabled on v0.29.0. The fixed main commit remains
supported. The vllm-ascend package version is unchanged.



Obsolete v0.28-only skips are removed where the contracts are now
supported. No skip is migrated to v0.29.0, and no golden data or
precision threshold is changed. Existing unrelated exclusions remain
exclusions, not passes.



### How was this patch tested?

Current-head validation: [run
35420046256](https://github.com/vllm-project/vllm-ascend/actions/runs/35420046256)
completed successfully on `fd876c5269fb6b39afa04e5a52433505e8786e22`: 39
successful jobs and 6 skipped jobs, no failures.
- Pre-commit and mypy passed. Fixed-main [CPU
UT](https://github.com/vllm-project/vllm-ascend/actions/runs/35420046256/job/105836507531):
**5078 passed, 67 skipped, 17 warnings**. Actual vLLM checkout
`84030bbe3d74d99bad477a3d2e37a973ccd8865c`, installed
`0.1.dev1+g84030bbe3.empty`; Ascend checkout is the PR head. CPU
`base_sha` is empty; the log says HEAD is up to date, so no unprinted
integration SHA is inferred.
- All **32 NPU jobs passed**, 16 per lane. Raw-log session totals per
lane: **562 passed, 35 skipped, 1 xfailed** (execution counts, not
deduplicated cases). Actual checkouts: main
`84030bbe3d74d99bad477a3d2e37a973ccd8865c`, release
`98dff2a81d747d1dba01a47f939f48c3526d4206`; installed versions
`0.1.dev1+g84030bbe3.empty` and `0.29.0+empty`. Each log confirms Ascend
head `fd876c5269fb6b39afa04e5a52433505e8786e22`, integration base
`e139b7d573d3769fd1407d5027d7d4831f5469f0`, and HEAD is up to date.
- PCP+DP and PCP+PP+MTP suite: [main A3 four-card
part4](https://github.com/vllm-project/vllm-ascend/actions/runs/35420046256/job/105845372541)
and [release A3 four-card
part4](https://github.com/vllm-project/vllm-ascend/actions/runs/35420046256/job/105845372595)
both passed. This does not establish a root cause for historical HCCL
failures.
- Skipped and expected-failure cases are not passes. **Current-head
release CPU verification remains missing**: the existing CPU job runs
fixed main only. Historical release CPU results do not fill this gap. No
workflow changes or additional skips were introduced.


Latest rebase: head `fd876c5269fb6b39afa04e5a52433505e8786e22` onto
upstream main `e139b7d573d3769fd1407d5027d7d4831f5469f0`. The old-head
green results below are historical; new-head CI has completed
successfully; see the verified results below. The fixed vLLM main and
release pins remain unchanged. PR-wide Ruff, formatting and Python AST
checks passed for 95 Python files; no workflow changes.

Rebase reconciliation:
- Preserve upstream
[vllm-project#16853](https://github.com/vllm-project/vllm-ascend/pull/16853/files),
`8f2e3fed73328148ea603ccfe5764542fa7cbbd2`, without migrating its
0.28-only validator/dispatch gates to 0.29. Both supported pins already
call the PCP manager for dispatch token counts. Restore the
version-helper import needed by the inherited method. Its inherited
0.28-only skipped tests are not counted as passes.
- Adapt the existing unsupported-feature UT to preserve the upstream
list: both supported pins delegate PCP checks to the manager via vLLM
[#53853](https://github.com/vllm-project/vllm/pull/53853/files),
`e376d45e82cb7e220da430e3179e81eb0922cf56`; no obsolete 0.28 string
filtering is reinstated.
- Adapt the existing KVPP allocation-entry UT from
[vllm-project#15514](https://github.com/vllm-project/vllm-ascend/pull/15514/files),
`b64959a11ea69a51409f64e4e68da8e0924dec42`, to the common allocation
entry already used by both supported pins after vLLM #51718. Preserve
cache-view assertions and the upstream dtype changes. No test functions
or skips added.
- vllm-project#16544 remains reverted by vllm-project#16905; its V4.1 compatibility workaround
remains removed.

Historical validation before this rebase:


- **Current head `8c5d785931c495701bf1da8b5bc80b321ebd3cd0`:** [run
35350119603](https://github.com/vllm-project/vllm-ascend/actions/runs/35350119603)
completed successfully: **40 successful jobs, 6 skipped jobs, no
failures**. Pre-commit and mypy passed. Local Ruff lint/format and AST
checks passed for all 95 changed Python files.
- **Actual main CPU:** [job
105617611031](https://github.com/vllm-project/vllm-ascend/actions/runs/35350119603/job/105617611031)
reports **5074 passed, 37 skipped**, 17 warnings. Logs confirm the exact
PR head, vLLM checkout `84030bbe3d74d99bad477a3d2e37a973ccd8865c`, and
installed `0.1.dev1+g84030bbe3.empty`. CPU `base_sha` is empty; no
integration merge is inferred.
- **Actual dual-version NPU:** All 32 NPU job logs were audited, 16 per
lane. Fixed main installed `0.1.dev1+g84030bbe3.empty`; official release
checkout `98dff2a81d747d1dba01a47f939f48c3526d4206` installed
`0.29.0+empty`. Each lane reports **562 passed, 35 skipped, 1 xfailed**
across pytest session summaries (execution counts, not deduplicated
unique tests). Logs confirm checkout of this PR head and integration
base `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c`; the rebase step reports
HEAD is up to date.
- **PCP combinations:** The context-parallel suite containing PCP+DP and
PCP+PP+MTP passes on both [main A3
part4](https://github.com/vllm-project/vllm-ascend/actions/runs/35350119603/job/105658864889)
and [release A3
part4](https://github.com/vllm-project/vllm-ascend/actions/runs/35350119603/job/105658864659).
- **Release CPU gap:** Current-head actual release CPU remains missing
because the workflow has only a main CPU entry. Version-parameterized
UTs and historical release CPU runs do not replace actual release
installation. Historical run 35213834751 at head
`2560da9c7c2628f1b92b9305a1e80c5856bce74f` passed 4923 tests with 37
skips per lane; its temporary CPU workflow was reverted.
- **Backup:** vllm-project#16898 remains unchanged with no test CI triggered. Local
branch `codex/backup-16393-before-16905` preserves previous green
`7ad4c82ee`; its results are not used as current-head validation.


Skipped/xfail cases and jobs are not counted as passes. Earlier
intermittent HCCL errors have no proven root cause; no speculative fix
is included. This run passes existing CI, but complete dual-version CPU
validation remains outstanding.



- vLLM main:
vllm-project/vllm@84030bb

---------

Signed-off-by: shenzhao <shenzhao9@huawei.com>
Co-authored-by: shenzhao <shenzhao9@huawei.com>
xqchen7 pushed a commit to xqchen7/vllm-ascend that referenced this pull request Sep 22, 2026
…vllm-project#17004)

### What this PR does / why we need it?



Reintroduce the vLLM v0.29.0 release upgrade from vllm-project#16393, reverted by
vllm-project#16949, with container defaults aligned to the supported release. Based
on upstream main `d3f6b4b59ab55dc42af1f30f425c893b95af5ee2`; preserves
later merged changes.


The image/source mismatch is confirmed in [nightly job
106004497020](https://github.com/vllm-project/vllm-ascend/actions/runs/35482881089/job/106004497020):
the image installed `vllm 0.28.0+empty` (tag `v0.28.0`) while upgraded
Ascend failed importing `_get_packed_kv_cache_groups`. All eight root
Dockerfiles still defaulted to v0.28.0. The reusable image workflow
passes no `VLLM_TAG` override, so those defaults govern release builds.
Changing only the release marker does not update those images.


- Fixed vLLM main remains `84030bbe3d74d99bad477a3d2e37a973ccd8865c`.

- Release changes from v0.28.0
(`2cf0a6915ce544dc493a0990f2ea38d81601128a`) to official v0.29.0
(`98dff2a81d747d1dba01a47f939f48c3526d4206`, rechecked against the
remote tag).
- Restore vllm-project#16393's source compatibility and existing UT changes by
reversing vllm-project#16949, then reconcile current upstream changes. No main
interface scan is rerun for this release-only upgrade.
- Update `VLLM_TAG` in all eight Dockerfiles: default/A3/A5/310P,
Ubuntu/openEuler. Preserve existing exact-commit build overrides. No
workflow changes.


| Current-base adaptation | Exact cause and evidence | Lane | Validation
|
| --- | --- | --- | --- |

| Eight Dockerfile `VLLM_TAG` defaults and release marker | vllm-project#16393
changed the release contract but omitted image defaults; the linked
nightly log proves installation of 0.28.0 and missing
`_get_packed_kv_cache_groups`. | Release images | All eight defaults
match marker; image-build CI requested, pending |
| `worker/v2/attn_utils.py::get_kv_cache_spec` and existing
`_make_mla_layer` UT fixture | Ascend
[vllm-project#16755](https://github.com/vllm-project/vllm-ascend/pull/16755/files),
`df3e755e98fba8c6a18f200c645e0c2050469bc3`, added an old-release field
selector. vLLM
[#51718](https://github.com/vllm-project/vllm/pull/51718/files),
`8bdc70ec7b379279ec0152343239c2d50aced687`, replaced `compress_ratio`
with `tokens_per_state`; both exact supported pins use the latter. Use
the common field, retaining metadata and cache-view assertions. | Both |
Source inspection and static checks passed; actual CI pending |
| `attention/attention_v1.py` import conflict | Preserve
`attention_transfer_window` from Ascend
[vllm-project#15636](https://github.com/vllm-project/vllm-ascend/pull/15636/files),
`5c80630f28f8529aa82716e58b981a78819ec429`, and graph changes from
vllm-project#16798; keep the common relocated PCP import from vllm-project#16393. Do not restore
the old compute-start import or unused weak-reference import. | Both |
Conflict resolved; static checks passed |
| `worker/v2/aclgraph_utils.py` import conflict | Preserve
`ContextSource`, `UpdatableGraph`, and `use_updatable_graph` from Ascend
[vllm-project#16798](https://github.com/vllm-project/vllm-ascend/pull/16798/files),
`34bb51f93724c565362f5108f5226303e1b56cad`, while removing the obsolete
0.28 version selector restored by the revert. | Both | Conflict
resolved; static checks passed |


| Existing 310P and Mamba model-runner UT imports | Preserve
hardware-profile imports and mocks from Ascend
[vllm-project#16803](https://github.com/vllm-project/vllm-ascend/pull/16803/files),
`d3f6b4b59ab55dc42af1f30f425c893b95af5ee2`; remove only the unused
old-release selector import. Hardware capability routing remains
unchanged. | Both | Real rebase conflicts resolved; AST/Ruff/format
passed; fresh CI pending |

Newly merged changes were reviewed for version-contract impact:
vllm-project#16775/vllm-project#16834 PCP metadata and routing, vllm-project#16923 A3 SFA,
vllm-project#16426/vllm-project#16924/vllm-project#16955 custom ops, vllm-project#16081 MTP/SP, vllm-project#16669 xlite,
vllm-project#15636/vllm-project#16747 transfer, vllm-project#16913 A5 pages, vllm-project#16798 graph updates, vllm-project#16755
GLM PD, vllm-project#16952 C8 config, vllm-project#16673 operator removal and vllm-project#16320 Kimi-K3 KV
pool. Preserve these changes; no additional source-proven version branch
was identified beyond the entries above. In particular, vllm-project#16747's
`UniformTypeKVCacheSpecs.kv_cache_specs` and per-layer `block_size`
exist in both exact pins; vllm-project#16320 adds Ascend connector hooks. CI remains
necessary to validate runtime interactions. CI/documentation-only PRs
are retained unchanged.


<details>

<summary>Inherited per-file compatibility evidence from vllm-project#16393</summary>


The following source-contract ledger is inherited from vllm-project#16393. Any
historical verification wording refers only to that earlier PR; it does
not certify this new head. New-head validation is listed below.


| Reference | Commit |





|---|---|





| vllm-ascend rebase base | `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c` |
| PR head | `8c5d785931c495701bf1da8b5bc80b321ebd3cd0` |





| Fixed vLLM main | `84030bbe3d74d99bad477a3d2e37a973ccd8865c` |





| Previous release: v0.28.0 | `2cf0a6915ce544dc493a0990f2ea38d81601128a`
|
| Target release: v0.29.0 | `98dff2a81d747d1dba01a47f939f48c3526d4206` |






- Use common implementations where v0.29.0 and the fixed main share
KV-cache layouts, Mamba copy/group APIs, PCP handling and
speculative-decoding contracts.
- Retain explicit `vllm_version_is("0.29.0")` branches for contracts
that still differ, including RoPE, scheduler block snapshots,
InputBatch, ReplaySSM, KV zeroing and DSpark PP handling.
- Remove obsolete v0.28.0 compatibility and adapt existing test
fixtures. Version detection uses package versions and the explicit
`VLLM_VERSION` override, with local-version suffix handling and UT
environment isolation retained; no hard-coded release-SHA inference
remains.
- Apply the Ascend PCP+DP validator patch only to v0.29.0, preserving
other validations and EPLB platform binding. Rebuild dependent Pydantic
schemas so nested configuration validation uses the patched validator.
The global patch documentation records its rationale and removal
criteria.






- Preserve vllm-project#15747's Spec+PP protocol/partition handling after rebase;
use the common exact-release selector and the real function-local DSpark
sharing import.






This release-only upgrade does not require a new main old-to-new
interface scan. The latest rebase incorporates
[vllm-project#16905](https://github.com/vllm-project/vllm-ascend/pull/16905/files),
which reverted vllm-project#16544 at `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c`. The
now-unnecessary V4.1 drafter import gate and tuple annotation have been
removed. Other release adaptations, including vllm-project#15747 Spec+PP handling,
remain. Detailed contract evidence is retained below for review.






<details>





<summary>Per-file adaptations and exact upstream evidence</summary>






#### Per-file adaptation ledger











Evidence IDs refer to the exact source contract and upstream diff table
below. Every row is syntax checked; branch-normalized AST comparison
confirms unchanged main function bodies except the version identity
helper and the explicitly retired propose argument/type annotations.
Both supported versions completed CPU and NPU execution as recorded
below.






| Ascend file / symbols | Disposition and upstream evidence |
Verification |
|---|---|---|





| `vllm_ascend/patch/worker/patch_v2/patch_dspark.py` /
`_load_dspark_model_with_target_quant`;
`tests/ut/patch/worker/test_patch_dspark_pp.py` | Preserve rebased
[Ascend
vllm-project#15747](https://github.com/vllm-project/vllm-ascend/pull/15747/files#diff-a170a42fe1e9275c999642b05c4a437d0c9104dd8ea19151796142909b00ab2a)
(`82df9d871`), including manual PP partition masking. vLLM [#52809
diff](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`91a893de64722019ea2faf852e06cabe143b3490`) moved `_should_share`
inside the loader on both supported pins, so retain the earlier release
fix: patch `eagle_utils`, never read/patch a nonexistent
`dspark_utils._should_share`. v0.29 keeps its global PP guard; main has
native PP via
[#50514](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`d87a440f88e28e5b37f9b1e22ce214d0426d5352`). | Existing UT now checks
the real function-local import, absent module alias, and restoration on
success/failure for both lanes; partition and PP assertions retained.
Ruff/syntax pass; actual CPU/NPU pending. |
| `vllm_ascend/worker/v2/pp_utils.py` / `use_legacy_spec_pp`;
`tests/ut/worker/v2/test_pp_utils.py` | vllm-project#15747 added broad 0.28/0.29
routing and an obsolete 0.28 dev-build recognition path. For the two
supported pins, #50514 exists only on fixed main. Route through
`vllm_version_is("0.29.0")`; retain package/local-suffix and explicit
environment-override semantics. No release-SHA inference or third
release lane. | Existing UTs exercise the real uncached version helper
with monkeypatch isolation, local suffix, fixed-main dev string,
explicit override, and non-target versions. Isolated routing checks and
Ruff/syntax pass; full CPU UT pending. |
| `vllm_ascend/_310p/model_runner_310p.py`<br>`_prepare_inputs`,
`_allocate_kv_cache_tensors` | #51718, #56078; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/spec_decode/llm_base_proposer_310.py`<br>`set_inputs_first_pass`
| #56078; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/worker/v2/model_runner.py`<br>`initialize_kv_cache`,
`_allocate_kv_cache_tensors`, `_prepare_inputs_310p` | #51718/#54436;
use shared standardized layouts and retain the v0.29.0 InputBatch gate.
The rebase preserves vllm-ascend vllm-project#16043's MTP copy tracking while
removing only legacy v0.28.0 allocation paths. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/_310p/worker/v2/rope.py`<br>`get_310p_rope_state` |
#56078; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/attention_v1.py`<br>`module imports/dispatch` |
#52839; both lanes use the common PCP import. Rebase keeps current
upstream graph code and removes only the v0.28.0 import branch. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/context_parallel/sfa_cp.py`<br>`module
imports/dispatch` | #52839; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/indexer.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/mla_v1.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/core/dyntra_lb_scheduler.py`<br>`module imports/dispatch`
| #51358, #54853; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/core/recompute_scheduler.py`<br>`module
imports/dispatch`, `schedule` | #51358, #54853; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/core/scheduler_profiling_chunk.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/core/kv_cache_interface.py`<br>`get_kv_cache_compression_ratio`,
`AscendMLAAttentionSpec`, `get_storage_block_size` | #51718, #53906;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/ascend_store/layerwise_cache_layout.py`<br>`_merge_specs`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/preempt_offload/manager.py`<br>`_derive_cpu_config`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/native/npu.py`<br>`create_worker`
| #52615; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/models/deepseek_mtp.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/deepseek_v4/indexer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/cache_config.py`<br>`make_tensor` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/kv_cache.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/kimi_k3_dspark.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/layer/attention/layer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_balance_schedule.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/platform/patch_kv_cache_coordinator.py`<br>`__init__`
| #53614; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_kv_cache_utils.py`<br>`module
imports/dispatch`, `_get_max_layers_per_page_size`,
`_ascend_max_memory_usage_bytes_from_groups`,
`_ascend_get_kv_cache_config_from_groups` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/patch/platform/patch_use_v2_model_runner.py`<br>`module
imports/dispatch`, `_patched_get_unsupported_features` | #53853, #53183;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py`<br>`bind_kv_cache` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py::bind_kv_cache` |
v0.29.0 has no ReplaySSM ring-tracker helper; fixed main requires it
after KV binding. Evidence: [#52506,
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`, worker-utils
diff](https://github.com/vllm-project/vllm/pull/52506/files#diff-645d58630d5acf3a0b07226bfef1e890a584c32502ab97c3d4642070f39a783c).
Keep an explicit v0.29.0 exclusion and preserve the fixed-main call. |
Failure reproduced on v0.29.0; Historical release/main NPU validation
passed; current-head CI pending |
| `vllm_ascend/patch/worker/patch_mamba_utils.py`<br>`module
imports/dispatch`, `_get_state_copy_funcs_for_layer` | #53896; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_v2/patch_attn_utils.py`<br>`module
imports/dispatch` | #51718; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/worker/patch_v2/patch_dspark.py`<br>`_load_dspark_model_with_target_quant`
| #50514, #52809; v0.29.0 keeps `get_pp_group` module-bound but imports
`_should_share` locally from Eagle utilities; fixed main removes the PP
guard. Keep the release `get_pp_group` patch, share through the common
Eagle utility, and delete the obsolete v0.28.0
`dspark_utils._should_share` patch. | Exact release failure reproduced;
Historical release/main CPU/NPU validation passed; current-head CI
pending |
|
`vllm_ascend/spec_decode/llm_base_proposer.py`<br>`model_returns_tuple`,
`__init__`, `set_inputs_first_pass` | #56078, #52861; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/utils.py`<br>`get_kv_cache_tensor_layers`,
`register_ascend_customop`, `vllm_version_is` | #52839, #51718, #52494;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/worker/model_runner_v1.py`<br>`_get_ascend_mamba_state_copy_funcs`,
`_allocate_kv_cache_tensors`, `_prepare_inputs`, `_dummy_run`,
`_reshape_kv_cache_tensors`, `get_kv_cache_spec`, NaN helpers |
#51718/#53896/#56078 plus #50323; remove v0.28.0 layouts/copy APIs and
import the NaN helpers directly because v0.29.0 and fixed main expose
the same contract. XD-RoPE remains explicitly gated to v0.29.0. | Static
checked; historical dual-version CPU/NPU validation passed; current-head
CI pending |
| `vllm_ascend/worker/v2/aclgraph_utils.py`<br>`capture` | #53869 makes
`pcp_manager` common to both lanes. The rebase preserves vllm-ascend
vllm-project#16409's host-parameter-update revert and removes only the obsolete
v0.28.0 capture branch. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/attn_utils.py`<br>`get_kv_cache_spec`,
`_allocate_kv_cache`, `_reshape_kv_cache_v2` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/worker/v2/block_table.py`<br>`__init__`,
`init_block_table_layout_tensors`, `compute_slot_mappings` | #51718,
#51031; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/model_runner.py`<br>`module imports/dispatch`,
`prepare_inputs`, `__init__`, `sample_tokens`, `prepare_dummy_attn`,
`execute_model` | #50514, #54436, #52506, #55212, #53515; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/pcp_manager.py`<br>`partition_batch` | #53515;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/sample/gumbel.py`<br>`module imports/dispatch`
| #54282; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/__init__.py`<br>`init_speculator` |
#49811; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
|
`vllm_ascend/worker/v2/spec_decode/autoregressive/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dflash/speculator.py`<br>`module
imports/dispatch`, `propose` | #53694, #52188; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dspark/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/worker/worker.py`<br>`_scale_kv_cache_memory_for_multi_group`,
`wake_up` | #51718, #53508; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |






#### Exact upstream evidence











| Upstream change | Full commit SHA / direct diff | Actual supported
contracts and branch decision |
|---|---|---|





| #51718 |
`8bdc70ec7b379279ec0152343239c2d50aced687`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/51718/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Both use layers/layer_stride/block_stride/offset, tokens_per_state,
CircularBufferSpec and standardized backing; retire
shared_by/compress_ratio allocation branches. |
| #52839 |
`58e5ee0158b6a264c3506f00480e108a34b33ee3`<br>[vllm/v1/attention/ops/pcp.py](https://github.com/vllm-project/vllm/pull/52839/files#diff-23d7e7ab01a7f44414796e1e1b08cfa5277a05f54143ee2dd3a1041ca47772a8)
| Both import PCP operations from vllm.v1.attention.ops.pcp. |
| #53896 |
`e126687a9a828d513c01a07cd69f025f27d63280`<br>[vllm/v1/worker/mamba_utils.py](https://github.com/vllm-project/vllm/pull/53896/files#diff-8ab86225fa08e9a6700851191abcb3f4f8b0bba40e97a82aad700d7a23a4d7ec)
| Both use Mamba copy-function dictionaries and unwrap
UniformTypeKVCacheSpecs. |
| #53106 |
`1fe3a1571ac67581478a11743e55a306de1d136f`<br>[vllm/model_executor/models/utils.py](https://github.com/vllm-project/vllm/pull/53106/files#diff-b0ba1095e9881e5c87e33dfd20958d1e1ceafe8a4433aa692f468e61be130b21)
| Both use WeightsMapper instead of AutoWeightsLoader
skip_prefixes/skip_substrs. |
| #53906 |
`98ed0856f31fa3aaf5e27464e2b4ef5a8ee6b2f5`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/53906/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Only pinned main has the optional MLA storage_block_size dataclass
field; release keeps the Ascend derived property, using
tokens_per_state. |
| #56078 |
`719284fe158f1be8a9dd92953295fc9d49015730`<br>[vllm/config/model.py](https://github.com/vllm-project/vllm/pull/56078/files#diff-998c640befaf137b9af825f29f4e6e47d273caab1fd04093c97df24b18f5c417)
| Release retains uses_xdrope_dim and three M-RoPE dimensions; pinned
main uses mrope_num_dims and unified RoPE. |
| #52615 |
`138d137b5b955a5ebee98dfc946ecdd65d7b87ce`<br>[vllm/v1/kv_offload/cpu/spec.py](https://github.com/vllm-project/vllm/pull/52615/files#diff-7d073c26c9b22f74e9ff9e4c8da733d1807233edb83439fc64fbd48c43ae6045)
| Release uses num_blocks/kv_bytes_per_block; main uses
num_chunks/kv_bytes_per_chunk. |
| #51358 |
`6b110badbb22d3f66c7218b71138f13b7a6b3419`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/51358/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release now has boundary_state_offloads and KVConnectorBlockState;
remove partial_tail_offloads plumbing. |
| #54853 |
`0b066293f3c738a0cbd3a087bf893f2f4dcd61f2`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/54853/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release constructor takes block_ids snapshots; main takes req_ids and
resolve_block_ids. Keep exact release snapshot membership and main
lazy-resolution membership. |
| #53614 |
`144e79c8106da23141ac010394b782f730cc7fe8`<br>[vllm/v1/core/kv_cache_coordinator.py](https://github.com/vllm-project/vllm/pull/53614/files#diff-43875c71daa893ef7567e21633d9988c2baf95bef61e3a334a6d584d6444d725)
| Only main configures drop_eagle_checkpoint_block for replay-aligned
Mamba checkpoints. |
| #50514 |
`d87a440f88e28e5b37f9b1e22ce214d0426d5352`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Release retains module-level PP/share symbols and Ascend PP
workaround; main has the subsequent PP integration. |
| #52809 |
`91a893de64722019ea2faf852e06cabe143b3490`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Between v0.28.0 and v0.29.0, `_should_share` moved from a DSpark
module binding to a function-local import from Eagle utilities. The
shared Eagle patch remains effective; the old DSpark-module read/write
must be removed. |
| #54436 |
`6bafc049aae6c26e210162630914ee9177a4b586`<br>[vllm/v1/worker/gpu/input_batch.py](https://github.com/vllm-project/vllm/pull/54436/files#diff-106f39c08266f186830bb8fcd7fb1df35c0aaa5fd0ac5c17aac64aeddee48902)
| Release InputBatch requires max_seq_len_np; main removed it. |
| #52506 |
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52506/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Only main accepts valid_dummy_state_slots/valid_state_slots capture
arguments. |
| #55212 |
`83990f5bcc0b5eb08b2f1fd1b109fa8a31b122f3`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/55212/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Release prepares DCP local sequence lengths before partitioning; main
initializes DCP metadata afterwards. |
| #53515 |
`b1fbbc2ade51e3826bc92e4733c9c692ee21d42d`<br>[vllm/v1/worker/gpu/pcp_manager.py](https://github.com/vllm-project/vllm/pull/53515/files#diff-45dad5fe975c2ec8d02124fa65579cf11bfe9169a94217ceae1de0ea29518127)
| Both accept padded_num_tokens for persistent PCP input buffers. |
| #53869 |
`b3af042abd8fe5a297ec3ec72db276fd661a67b3`<br>[vllm/v1/worker/gpu/cudagraph_utils.py](https://github.com/vllm-project/vllm/pull/53869/files#diff-fc699ff1c69fd17adb60116b3a7a20aa88b5187205f589952d0f3792475ec212)
| Both accept pcp_manager during graph capture. |
| #51031 |
`0ecc284790e5403f74b899524ef82ecb69f83cb3`<br>[vllm/v1/worker/gpu/block_table.py](https://github.com/vllm-project/vllm/pull/51031/files#diff-21052649468f36e592c9ed378a9cd7b4615c558fb4d10f034f7b4268d3b6f9e1)
| Both distinguish KV and kernel block sizes during DCP slot mapping. |
| #54282 |
`fe755c88995ad468882517b6c4bdd60138d46a3a`<br>[vllm/v1/worker/gpu/sample/gumbel.py](https://github.com/vllm-project/vllm/pull/54282/files#diff-02f7c5a06a2d23d544a07d57af16c7ffb74886469c8844385f51a719e329e6b8)
| Both gumbel sampling APIs include is_drafting. |
| #52188 |
`d1e3eee6fb8ed3623241ef5c8e3ac533f775bff9`<br>[vllm/v1/worker/gpu/spec_decode/dflash/speculator.py](https://github.com/vllm-project/vllm/pull/52188/files#diff-0220b514682125dea26026db2d7caa1a0d9c772d84452e9e124434d1e11be5f0)
| Both DFlash input kernels take cp_rank/CP_SIZE/CP_INTERLEAVE. |
| #53694 |
`5acc1c4e4b8730298cbff7a4a7c68c814dc24fd7`<br>[vllm/v1/worker/gpu/spec_decode/autoregressive/speculator.py](https://github.com/vllm-project/vllm/pull/53694/files#diff-3e7e2ba21d64e309503b7c5fe537363a7669fa1baf84d3c2e4891d9aed64fbe6)
| Both propose APIs take DPSyncState; remove the obsolete token-count
argument and retain replicated-PCP synchronization. |
| #49811 |
`01af92e175407231b1433b0aef01a1b9c983d955`<br>[vllm/v1/worker/gpu/spec_decode/extract_hidden_states.py](https://github.com/vllm-project/vllm/pull/49811/files#diff-b13061cd1be0bc80aaa9fce208fe9128aaaad25b3832c5f1693da1d4e8263f5e)
| Both support extract_hidden_states on MRV2; remove old unsupported
dispatch/skip. |
| #53508 |
`479eeb32d2b432dbb4e442fbd3f94ca2eca35d67`<br>[vllm/v1/worker/gpu_model_runner.py](https://github.com/vllm-project/vllm/pull/53508/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29)
| Both remove post_kv_cache_wake_up; retire release-only call. |
| #52494 |
`3ff4f02dfe69abc1a0375d1ea8d8d5cb25609fcc`<br>[vllm/models/kimi_k3/amd/mla.py](https://github.com/vllm-project/vllm/pull/52494/files#diff-aad295e6de3607a46cea22f9f1cca768d4937dc5e1d3ca58105513358ed4e4c1)
| Only main provides KimiK3MultiHeadLatentAttentionWrapper; retain
release exclusion. |
| #52861 |
`b09bd69b5bf14911abef9a0e8e493b83c8a38fa6`<br>[vllm/v1/spec_decode/llm_base_proposer.py](https://github.com/vllm-project/vllm/pull/52861/files#diff-56fcad87dae9192cb0ab1643473765096cc44e1e744dccf3b99c4f2d85360d28)
| Both include DeepseekV32MTPModel in the two-hidden-state architecture
set. |
| #54713 |
`b28c3e1568bfae930f61d4b24940e47528c85d4a`<br>[vllm/v1/core/single_type_kv_cache_manager.py](https://github.com/vllm-project/vllm/pull/54713/files#diff-97c184a680b7a4bd7d58b11aa0073706533cc887d990eddb98469e7374025ab3)
| Only main takes replay_boundaries in compressed-prefix hit lookup;
preserve release calls without that keyword. |
| #42785 |
`442d36031ce710aa2a777c353becb660c57ab2bd`<br>[vllm/v1/worker/encoder_cudagraph.py](https://github.com/vllm-project/vllm/pull/42785/files#diff-287435cc78f753ae42acda542bca01c094557cd17db6bc2991d968fd012c1f18)
| Only main capture callers pass axis_keys; preserve the existing Ascend
rejection of nonempty axes. |
| #52358 |
`8f816a3f665489d7f0d222115d4f72ebab01076b`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52358/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Both ExecuteModelState have dp_sync; only main has cudagraph_stats. |
| #52789 |
`9eb9d9d3953959695108600c8ed33d36bc6a1e5f`<br>[vllm/v1/core/sched/scheduler.py](https://github.com/vllm-project/vllm/pull/52789/files#diff-9eeca590fd99f15621897e559dba39b3ec4e7c2c65ec3c3229711689e008b5f4)
| Release already has mamba_has_prefill_checkpoint_blocks; later main
also has fine-grained prefix-cache state. |
| #51251 |
`7bbbf7c8e5040f7ebd374e8cbc657e01af1136dd`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/51251/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| v0.29.0 and main expose ec_manager_config; retire the old release-only
ScoreEncoder configuration skip. |
| #53240 |
`b2db227a7c4c5e55f85524a094b607e5d27408b4`<br>[vllm/model_executor/layers/fused_moe/routed_experts_capturer.py](https://github.com/vllm-project/vllm/pull/53240/files#diff-0bbfc19dd02619bbcc948fa0281d4ab9a5b77b7d5062cde9911319c93089535c)
| v0.29.0 supports MRV2 routed-expert capture and unwraps uniform cache
groups; retire the old release-only replay skip. |
| #53853 |
`e376d45e82cb7e220da430e3179e81eb0922cf56`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53853/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both delegate PCP compatibility validation to the PCP manager. |
| #53183 |
`4aab2b0ebed20343efe543c633f71b3c1336d5b8`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53183/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both expose the V1 unsupported-feature helper used by the existing
Ascend MRV1 feature filter. |






#### Additional inherited contracts











| vllm-ascend change | Why it is required | Upstream cause and direct
link | Lane | Verification |
|---|---|---|---|---|





| `_310p/worker/v2/model_state.py`: remove tuple-return and RecoverSSM
v0.28 fallbacks | v0.29.0 and fixed main both return `dict[MambaSpec,
list[int]]` from `get_mamba_groups` and both initialize `recoverssm`;
keeping the old fallback would preserve an unsupported third contract |
[v0.29.0 mamba
groups](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/mamba_utils.py#L691-L704),
[fixed-main mamba
groups](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/mamba_utils.py#L691-L704),
[v0.29.0
RecoverSSM](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103),
[fixed-main
RecoverSSM](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103)
| both, common implementation | Existing constructor UT now asserts the
parent-created RecoverSSM value is retained; Ruff and compileall pass |
| `worker/v2/model_runner.py`: always forward
`kv_cache_allocation_context` | v0.29.0 and fixed main both accept this
keyword; the new-base gate was specifically for v0.28.0 | [v0.29.0
signature](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_runner.py#L533-L538),
[fixed-main
signature](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_runner.py#L561-L566),
[vllm-ascend
vllm-project#16791](https://github.com/vllm-project/vllm-ascend/pull/16791/files) |
both, common implementation | Existing UT continues to assert the exact
context object reaches the parent; Ruff and compileall pass |
| `_310p/worker/v2/model_runner.py`: select the release KV-zeroing
contract with `vllm_version_is("0.29.0")` | v0.29.0 exposes
`KVCacheGroupSpec.is_eagle_group` but lacks
`SpeculativeConfig.use_eagle_block_drop`; fixed main added the method |
vLLM [#53388
diff](https://github.com/vllm-project/vllm/pull/53388/files), commit
[`481839ad9e5ebf87aecb54fa5c9d986bd5ea4b81`](vllm-project/vllm@481839a);
[v0.29.0 group
field](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/kv_cache_interface.py#L1200),
[fixed-main
helper](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/config/speculative.py#L1874-L1876)
| release differs from main | Existing two-path KV-zeroing UT retained
and renamed for v0.29.0; Ruff and compileall pass |
| existing DFlash kernel UT: remove v0.28-only kwarg omission | the
current Ascend kernel accepts the CP arguments and the only excluded
lane was v0.28.0, which this PR replaces | [vllm-ascend
vllm-project#15098](https://github.com/vllm-project/vllm-ascend/pull/15098/files) |
both, common invocation | Existing NPU test remains enabled with all
assertions; Current-head CI pending |
| Ascend change | Why / upstream cause | Lane | Verification |





|---|---|---|---|





| `patch/platform/patch_parallel_config.py`, registration, and global
patch documentation | Allow Ascend PCP+DP by removing the generic GPU
restriction, following vLLM
[#54523](https://github.com/vllm-project/vllm/pull/54523/files), commit
`7c2f1ff4958eaf0818405e9192c71608fe4a16b1`. Preserve dynamic
`parallel_config.current_platform` lookup and rebuild ParallelConfig →
SpeculativeConfig → VllmConfig. | v0.29.0 only | Existing
configuration/EPLB UTs and historical PCP+DP NPU execution passed;
current-head CI pending. |
| `ops/triton/v2/sample/categorical_sample.py`, existing Gumbel UT |
Both supported contracts require `is_drafting`, from
[#54282](https://github.com/vllm-project/vllm/pull/54282/files),
`fe755c88995ad468882517b6c4bdd60138d46a3a`; preserve the inherited
optimized kernel and use a common wrapper. | Both | Existing positive
drafting assertion retained; current-head CI pending. |
| `patch/platform/patch_kv_cache_coordinator.py`, existing prefix-cache
UT | Both support `cache_hit_alignment_tokens`, introduced by
[#53598](https://github.com/vllm-project/vllm/pull/53598/files),
`2ba984a5d06db414f3b2474fe9338faf6cd80a1c`; retire the v0.28-only
write-mask branch. | Both | Existing assertions retained; current-head
CI pending. |






#### Rebase and retired-fallback evidence











| Change | Exact source evidence | Decision |





|---|---|---|





| `tests/e2e/conftest.py::PROMPT_CONFIGS[HunyuanOCR]` | vLLM
[#53272](https://github.com/vllm-project/vllm/pull/53272/files#diff-0852f1e9753819abe4f85380abdc0660fd4a998f44bd7bb73d68f462bd776d95),
`d53b1c2efc0ca7161c3844f51ca9acbcdb7129d5` removes native Hunyuan V1/VL
before v0.29.0; both exact supported sources lack it. The old
conditional came from vllm-ascend
[vllm-project#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-824bc3e5c28226a3c0f4581750fa93a7da7001aff9e0ff4aee4131e3edd7b144),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Remove the v0.28.0
selector and use the existing exclusion for both supported lanes. This
does not migrate the protected SFA PCP skip or add a v0.29.0 accuracy
skip. |
| `vllm_ascend/worker/model_runner_v1.py` NaN helper imports and
`tests/ut/worker/test_model_runner_v1_nan_detection.py` | vLLM
[#50323](https://github.com/vllm-project/vllm/pull/50323/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29),
`12292d94b25869be2af6b6d4f8eea6c2445e935f`; both exact sources export
`nans_to_dict`, `gpu_sync_allowed`, and `raise_if_nan_logits`. The
v0.28.0 fallback originated in vllm-ascend
[vllm-project#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-c49594855b615477bbc34f06d2d423a7dd84c021a7925cd1f61fdb79cb814c08),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Delete
import-failure/`None` fallbacks and the existing UT's obsolete
availability skip; assertions remain unchanged and execute on both
lanes. |
| `vllm_ascend/worker/v2/aclgraph_utils.py` | vllm-ascend
[vllm-project#16409](https://github.com/vllm-project/vllm-ascend/pull/16409/files#diff-dc1c8a80dadf23627467bf04d6bc59fe13c6d075b7d2564d0acc07dc97d921f3),
`799801feef347469d5e9b39374b9210e0d4f7431`. | Preserve the upstream
revert while resolving the real rebase conflict; do not reintroduce the
reverted graph-update behavior. |
| `vllm_ascend/_310p/worker/v2/model_runner.py` | vllm-ascend
[vllm-project#16043](https://github.com/vllm-project/vllm-ascend/pull/16043/files#diff-2f27611a7cfbbdb780b9e88157f05d14d6dfe65406c8d66a5ba1f6949124f5d2),
`d4d2957e5208c2f464d4625c05920bd29ea233cb`. | Preserve the newly merged
310P MTP copy tracking and remove only the v0.28.0 descriptor/allocation
branch. |






</details>













</details>



### Does this PR introduce _any_ user-facing change?



Yes. The supported vLLM release and default container builds move to
v0.29.0, while the fixed main remains supported. The vllm-ascend package
version does not change. Existing 0.29-only PCP+DP compatibility is
restored.


### How was this patch tested?

- Final E2E result for head `a3b76b073a201851454e873aa89fc2254992fc06`:
[run
35504646654](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646654)
succeeded (39 successful jobs, 6 skipped). Raw logs from all 32 selected
NPU jobs confirm the requested Ascend head, integration base
`2de71b594319bde52c8bded69eba154f50be8e75`, and the actual vLLM
pins/installations: fixed main
`84030bbe3d74d99bad477a3d2e37a973ccd8865c` /
`0.1.dev1+g84030bbe3.empty`, release
`98dff2a81d747d1dba01a47f939f48c3526d4206` / `0.29.0+empty`. Each lane
totals **563 passed, 35 skipped, 1 xfailed** across its selected pytest
invocations. Skips/xfails are not passes. The resulting rebased
integration commit is not printed and is not inferred. Actual release
CPU and failed/cancelled image variants remain gaps.


- Current-head CI update (2026-09-20): [main CPU
UT](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646654/job/106062951955)
passed **5157 tests**, with **67 skipped**; actual installed vLLM was
`0.1.dev1+g84030bbe3.empty`. Ascend checkout was the current PR head;
the log does not print the full resulting integration head/base.
Pre-commit and mypy passed. NPU/E2E results are recorded above; actual
release CPU remains unverified.
- Image build is partially blocked by infrastructure: A5 amd64
[Ubuntu](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062362005)
and
[openEuler](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062362068)
failed before reading the Dockerfile because BuildKit could not create a
snapshot temporary directory (`no space left on device`). No release
compatibility code change is justified by this failure; cancelled
variants remain unverified. The successful [310P openEuler arm64
build](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062361987)
explicitly checked out release
`98dff2a81d747d1dba01a47f939f48c3526d4206` and installed `0.29.0+empty`;
this is build evidence, not runtime UT coverage.


- Current head: `a3b76b073a201851454e873aa89fc2254992fc06`, rebased onto
the baseline above. Previous-head CPU [job
106060931458](https://github.com/vllm-project/vllm-ascend/actions/runs/35503843936/job/106060931458)
stopped during Ascend integration rebase after vllm-project#16803 merged, before any
UT ran. Its vLLM checkout was the fixed main and installation reported
`0.1.dev1+g84030bbe3.empty`. The two import conflicts are resolved;
fresh-head CI was retriggered by the push.


- Remote official v0.29.0 tag resolved to the exact SHA above; both
source pins inspected.
- All 95 changed Python files pass Ruff lint, Ruff format and AST
parsing; `git diff --check` passes. Dockerfile tag/marker consistency
checked across all eight variants.
- Full pre-commit invocation: Ruff, codespell, typos, clang-format,
markdownlint, actionlint, package-init, forbidden-import and
boolean-context checks passed. Bash-dependent hooks cannot run on this
Windows host; Python launcher hooks exit 9009. Full CI lint remains
pending.
- Actual main/release CPU/NPU and image builds are not claimed locally:
the required Linux/NPU/container environment is unavailable. New PR E2E
and image-build CI are requested. Existing CPU workflow runs fixed main
only, so actual release CPU remains a validation gap.
- vllm-project#16393's historical green CI is not a substitute for this new head. No
new test functions, workflow changes, golden/threshold changes or
additional skips are introduced beyond restoring vllm-project#16393. Inherited
0.28-only tests/skips are not counted as passes.

- vLLM main:
vllm-project/vllm@84030bb

Signed-off-by: shenzhao <shenzhao9@huawei.com>
Co-authored-by: shenzhao <shenzhao9@huawei.com>
tangdafu pushed a commit to tangdafu/vllm-ascend that referenced this pull request Sep 23, 2026
…vllm-project#17004)

### What this PR does / why we need it?



Reintroduce the vLLM v0.29.0 release upgrade from vllm-project#16393, reverted by
vllm-project#16949, with container defaults aligned to the supported release. Based
on upstream main `d3f6b4b59ab55dc42af1f30f425c893b95af5ee2`; preserves
later merged changes.


The image/source mismatch is confirmed in [nightly job
106004497020](https://github.com/vllm-project/vllm-ascend/actions/runs/35482881089/job/106004497020):
the image installed `vllm 0.28.0+empty` (tag `v0.28.0`) while upgraded
Ascend failed importing `_get_packed_kv_cache_groups`. All eight root
Dockerfiles still defaulted to v0.28.0. The reusable image workflow
passes no `VLLM_TAG` override, so those defaults govern release builds.
Changing only the release marker does not update those images.


- Fixed vLLM main remains `84030bbe3d74d99bad477a3d2e37a973ccd8865c`.

- Release changes from v0.28.0
(`2cf0a6915ce544dc493a0990f2ea38d81601128a`) to official v0.29.0
(`98dff2a81d747d1dba01a47f939f48c3526d4206`, rechecked against the
remote tag).
- Restore vllm-project#16393's source compatibility and existing UT changes by
reversing vllm-project#16949, then reconcile current upstream changes. No main
interface scan is rerun for this release-only upgrade.
- Update `VLLM_TAG` in all eight Dockerfiles: default/A3/A5/310P,
Ubuntu/openEuler. Preserve existing exact-commit build overrides. No
workflow changes.


| Current-base adaptation | Exact cause and evidence | Lane | Validation
|
| --- | --- | --- | --- |

| Eight Dockerfile `VLLM_TAG` defaults and release marker | vllm-project#16393
changed the release contract but omitted image defaults; the linked
nightly log proves installation of 0.28.0 and missing
`_get_packed_kv_cache_groups`. | Release images | All eight defaults
match marker; image-build CI requested, pending |
| `worker/v2/attn_utils.py::get_kv_cache_spec` and existing
`_make_mla_layer` UT fixture | Ascend
[vllm-project#16755](https://github.com/vllm-project/vllm-ascend/pull/16755/files),
`df3e755e98fba8c6a18f200c645e0c2050469bc3`, added an old-release field
selector. vLLM
[#51718](https://github.com/vllm-project/vllm/pull/51718/files),
`8bdc70ec7b379279ec0152343239c2d50aced687`, replaced `compress_ratio`
with `tokens_per_state`; both exact supported pins use the latter. Use
the common field, retaining metadata and cache-view assertions. | Both |
Source inspection and static checks passed; actual CI pending |
| `attention/attention_v1.py` import conflict | Preserve
`attention_transfer_window` from Ascend
[vllm-project#15636](https://github.com/vllm-project/vllm-ascend/pull/15636/files),
`5c80630f28f8529aa82716e58b981a78819ec429`, and graph changes from
vllm-project#16798; keep the common relocated PCP import from vllm-project#16393. Do not restore
the old compute-start import or unused weak-reference import. | Both |
Conflict resolved; static checks passed |
| `worker/v2/aclgraph_utils.py` import conflict | Preserve
`ContextSource`, `UpdatableGraph`, and `use_updatable_graph` from Ascend
[vllm-project#16798](https://github.com/vllm-project/vllm-ascend/pull/16798/files),
`34bb51f93724c565362f5108f5226303e1b56cad`, while removing the obsolete
0.28 version selector restored by the revert. | Both | Conflict
resolved; static checks passed |


| Existing 310P and Mamba model-runner UT imports | Preserve
hardware-profile imports and mocks from Ascend
[vllm-project#16803](https://github.com/vllm-project/vllm-ascend/pull/16803/files),
`d3f6b4b59ab55dc42af1f30f425c893b95af5ee2`; remove only the unused
old-release selector import. Hardware capability routing remains
unchanged. | Both | Real rebase conflicts resolved; AST/Ruff/format
passed; fresh CI pending |

Newly merged changes were reviewed for version-contract impact:
vllm-project#16775/vllm-project#16834 PCP metadata and routing, vllm-project#16923 A3 SFA,
vllm-project#16426/vllm-project#16924/vllm-project#16955 custom ops, vllm-project#16081 MTP/SP, vllm-project#16669 xlite,
vllm-project#15636/vllm-project#16747 transfer, vllm-project#16913 A5 pages, vllm-project#16798 graph updates, vllm-project#16755
GLM PD, vllm-project#16952 C8 config, vllm-project#16673 operator removal and vllm-project#16320 Kimi-K3 KV
pool. Preserve these changes; no additional source-proven version branch
was identified beyond the entries above. In particular, vllm-project#16747's
`UniformTypeKVCacheSpecs.kv_cache_specs` and per-layer `block_size`
exist in both exact pins; vllm-project#16320 adds Ascend connector hooks. CI remains
necessary to validate runtime interactions. CI/documentation-only PRs
are retained unchanged.


<details>

<summary>Inherited per-file compatibility evidence from vllm-project#16393</summary>


The following source-contract ledger is inherited from vllm-project#16393. Any
historical verification wording refers only to that earlier PR; it does
not certify this new head. New-head validation is listed below.


| Reference | Commit |





|---|---|





| vllm-ascend rebase base | `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c` |
| PR head | `8c5d785931c495701bf1da8b5bc80b321ebd3cd0` |





| Fixed vLLM main | `84030bbe3d74d99bad477a3d2e37a973ccd8865c` |





| Previous release: v0.28.0 | `2cf0a6915ce544dc493a0990f2ea38d81601128a`
|
| Target release: v0.29.0 | `98dff2a81d747d1dba01a47f939f48c3526d4206` |






- Use common implementations where v0.29.0 and the fixed main share
KV-cache layouts, Mamba copy/group APIs, PCP handling and
speculative-decoding contracts.
- Retain explicit `vllm_version_is("0.29.0")` branches for contracts
that still differ, including RoPE, scheduler block snapshots,
InputBatch, ReplaySSM, KV zeroing and DSpark PP handling.
- Remove obsolete v0.28.0 compatibility and adapt existing test
fixtures. Version detection uses package versions and the explicit
`VLLM_VERSION` override, with local-version suffix handling and UT
environment isolation retained; no hard-coded release-SHA inference
remains.
- Apply the Ascend PCP+DP validator patch only to v0.29.0, preserving
other validations and EPLB platform binding. Rebuild dependent Pydantic
schemas so nested configuration validation uses the patched validator.
The global patch documentation records its rationale and removal
criteria.






- Preserve vllm-project#15747's Spec+PP protocol/partition handling after rebase;
use the common exact-release selector and the real function-local DSpark
sharing import.






This release-only upgrade does not require a new main old-to-new
interface scan. The latest rebase incorporates
[vllm-project#16905](https://github.com/vllm-project/vllm-ascend/pull/16905/files),
which reverted vllm-project#16544 at `9dc6704559ebe2809b5cb7b7fc44184bd1338b3c`. The
now-unnecessary V4.1 drafter import gate and tuple annotation have been
removed. Other release adaptations, including vllm-project#15747 Spec+PP handling,
remain. Detailed contract evidence is retained below for review.






<details>





<summary>Per-file adaptations and exact upstream evidence</summary>






#### Per-file adaptation ledger











Evidence IDs refer to the exact source contract and upstream diff table
below. Every row is syntax checked; branch-normalized AST comparison
confirms unchanged main function bodies except the version identity
helper and the explicitly retired propose argument/type annotations.
Both supported versions completed CPU and NPU execution as recorded
below.






| Ascend file / symbols | Disposition and upstream evidence |
Verification |
|---|---|---|





| `vllm_ascend/patch/worker/patch_v2/patch_dspark.py` /
`_load_dspark_model_with_target_quant`;
`tests/ut/patch/worker/test_patch_dspark_pp.py` | Preserve rebased
[Ascend
vllm-project#15747](https://github.com/vllm-project/vllm-ascend/pull/15747/files#diff-a170a42fe1e9275c999642b05c4a437d0c9104dd8ea19151796142909b00ab2a)
(`82df9d871`), including manual PP partition masking. vLLM [#52809
diff](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`91a893de64722019ea2faf852e06cabe143b3490`) moved `_should_share`
inside the loader on both supported pins, so retain the earlier release
fix: patch `eagle_utils`, never read/patch a nonexistent
`dspark_utils._should_share`. v0.29 keeps its global PP guard; main has
native PP via
[#50514](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
(`d87a440f88e28e5b37f9b1e22ce214d0426d5352`). | Existing UT now checks
the real function-local import, absent module alias, and restoration on
success/failure for both lanes; partition and PP assertions retained.
Ruff/syntax pass; actual CPU/NPU pending. |
| `vllm_ascend/worker/v2/pp_utils.py` / `use_legacy_spec_pp`;
`tests/ut/worker/v2/test_pp_utils.py` | vllm-project#15747 added broad 0.28/0.29
routing and an obsolete 0.28 dev-build recognition path. For the two
supported pins, #50514 exists only on fixed main. Route through
`vllm_version_is("0.29.0")`; retain package/local-suffix and explicit
environment-override semantics. No release-SHA inference or third
release lane. | Existing UTs exercise the real uncached version helper
with monkeypatch isolation, local suffix, fixed-main dev string,
explicit override, and non-target versions. Isolated routing checks and
Ruff/syntax pass; full CPU UT pending. |
| `vllm_ascend/_310p/model_runner_310p.py`<br>`_prepare_inputs`,
`_allocate_kv_cache_tensors` | #51718, #56078; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/spec_decode/llm_base_proposer_310.py`<br>`set_inputs_first_pass`
| #56078; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/_310p/worker/v2/model_runner.py`<br>`initialize_kv_cache`,
`_allocate_kv_cache_tensors`, `_prepare_inputs_310p` | #51718/#54436;
use shared standardized layouts and retain the v0.29.0 InputBatch gate.
The rebase preserves vllm-ascend vllm-project#16043's MTP copy tracking while
removing only legacy v0.28.0 allocation paths. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/_310p/worker/v2/rope.py`<br>`get_310p_rope_state` |
#56078; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/attention_v1.py`<br>`module imports/dispatch` |
#52839; both lanes use the common PCP import. Rebase keeps current
upstream graph code and removes only the v0.28.0 import branch. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/context_parallel/sfa_cp.py`<br>`module
imports/dispatch` | #52839; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/attention/indexer.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/attention/mla_v1.py`<br>`module imports/dispatch` |
#52839; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/core/dyntra_lb_scheduler.py`<br>`module imports/dispatch`
| #51358, #54853; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/core/recompute_scheduler.py`<br>`module
imports/dispatch`, `schedule` | #51358, #54853; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/core/scheduler_profiling_chunk.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/core/kv_cache_interface.py`<br>`get_kv_cache_compression_ratio`,
`AscendMLAAttentionSpec`, `get_storage_block_size` | #51718, #53906;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/ascend_store/layerwise_cache_layout.py`<br>`_merge_specs`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/preempt_offload/manager.py`<br>`_derive_cpu_config`
| #51718; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/distributed/kv_transfer/kv_pool/kv_offload/native/npu.py`<br>`create_worker`
| #52615; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/models/deepseek_mtp.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/deepseek_v4/indexer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/cache_config.py`<br>`make_tensor` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/glm5next/kv_cache.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/models/kimi_k3_dspark.py`<br>`load_weights` | #53106;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/models/layer/attention/layer.py`<br>`get_kv_cache_spec` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_balance_schedule.py`<br>`module
imports/dispatch` | #51358, #54853; common contracts merged, differing
release contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/platform/patch_kv_cache_coordinator.py`<br>`__init__`
| #53614; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/patch/platform/patch_kv_cache_utils.py`<br>`module
imports/dispatch`, `_get_max_layers_per_page_size`,
`_ascend_max_memory_usage_bytes_from_groups`,
`_ascend_get_kv_cache_config_from_groups` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/patch/platform/patch_use_v2_model_runner.py`<br>`module
imports/dispatch`, `_patched_get_unsupported_features` | #53853, #53183;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py`<br>`bind_kv_cache` |
#51718; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/patch/worker/patch_bind_kv_cache.py::bind_kv_cache` |
v0.29.0 has no ReplaySSM ring-tracker helper; fixed main requires it
after KV binding. Evidence: [#52506,
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`, worker-utils
diff](https://github.com/vllm-project/vllm/pull/52506/files#diff-645d58630d5acf3a0b07226bfef1e890a584c32502ab97c3d4642070f39a783c).
Keep an explicit v0.29.0 exclusion and preserve the fixed-main call. |
Failure reproduced on v0.29.0; Historical release/main NPU validation
passed; current-head CI pending |
| `vllm_ascend/patch/worker/patch_mamba_utils.py`<br>`module
imports/dispatch`, `_get_state_copy_funcs_for_layer` | #53896; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/patch/worker/patch_v2/patch_attn_utils.py`<br>`module
imports/dispatch` | #51718; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |
|
`vllm_ascend/patch/worker/patch_v2/patch_dspark.py`<br>`_load_dspark_model_with_target_quant`
| #50514, #52809; v0.29.0 keeps `get_pp_group` module-bound but imports
`_should_share` locally from Eagle utilities; fixed main removes the PP
guard. Keep the release `get_pp_group` patch, share through the common
Eagle utility, and delete the obsolete v0.28.0
`dspark_utils._should_share` patch. | Exact release failure reproduced;
Historical release/main CPU/NPU validation passed; current-head CI
pending |
|
`vllm_ascend/spec_decode/llm_base_proposer.py`<br>`model_returns_tuple`,
`__init__`, `set_inputs_first_pass` | #56078, #52861; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/utils.py`<br>`get_kv_cache_tensor_layers`,
`register_ascend_customop`, `vllm_version_is` | #52839, #51718, #52494;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
|
`vllm_ascend/worker/model_runner_v1.py`<br>`_get_ascend_mamba_state_copy_funcs`,
`_allocate_kv_cache_tensors`, `_prepare_inputs`, `_dummy_run`,
`_reshape_kv_cache_tensors`, `get_kv_cache_spec`, NaN helpers |
#51718/#53896/#56078 plus #50323; remove v0.28.0 layouts/copy APIs and
import the NaN helpers directly because v0.29.0 and fixed main expose
the same contract. XD-RoPE remains explicitly gated to v0.29.0. | Static
checked; historical dual-version CPU/NPU validation passed; current-head
CI pending |
| `vllm_ascend/worker/v2/aclgraph_utils.py`<br>`capture` | #53869 makes
`pcp_manager` common to both lanes. The rebase preserves vllm-ascend
vllm-project#16409's host-parameter-update revert and removes only the obsolete
v0.28.0 capture branch. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/attn_utils.py`<br>`get_kv_cache_spec`,
`_allocate_kv_cache`, `_reshape_kv_cache_v2` | #51718; common contracts
merged, differing release contracts explicitly gated as detailed below.
| Static checked; prior-head dual-version results below; rebased CI
pending |
| `vllm_ascend/worker/v2/block_table.py`<br>`__init__`,
`init_block_table_layout_tensors`, `compute_slot_mappings` | #51718,
#51031; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
| `vllm_ascend/worker/v2/model_runner.py`<br>`module imports/dispatch`,
`prepare_inputs`, `__init__`, `sample_tokens`, `prepare_dummy_attn`,
`execute_model` | #50514, #54436, #52506, #55212, #53515; common
contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/pcp_manager.py`<br>`partition_batch` | #53515;
common contracts merged, differing release contracts explicitly gated as
detailed below. | Static checked; prior-head dual-version results below;
rebased CI pending |
| `vllm_ascend/worker/v2/sample/gumbel.py`<br>`module imports/dispatch`
| #54282; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/__init__.py`<br>`init_speculator` |
#49811; common contracts merged, differing release contracts explicitly
gated as detailed below. | Static checked; prior-head dual-version
results below; rebased CI pending |
|
`vllm_ascend/worker/v2/spec_decode/autoregressive/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dflash/speculator.py`<br>`module
imports/dispatch`, `propose` | #53694, #52188; common contracts merged,
differing release contracts explicitly gated as detailed below. | Static
checked; prior-head dual-version results below; rebased CI pending |
| `vllm_ascend/worker/v2/spec_decode/dspark/speculator.py`<br>`propose`
| #53694; common contracts merged, differing release contracts
explicitly gated as detailed below. | Static checked; prior-head
dual-version results below; rebased CI pending |
|
`vllm_ascend/worker/worker.py`<br>`_scale_kv_cache_memory_for_multi_group`,
`wake_up` | #51718, #53508; common contracts merged, differing release
contracts explicitly gated as detailed below. | Static checked;
prior-head dual-version results below; rebased CI pending |






#### Exact upstream evidence











| Upstream change | Full commit SHA / direct diff | Actual supported
contracts and branch decision |
|---|---|---|





| #51718 |
`8bdc70ec7b379279ec0152343239c2d50aced687`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/51718/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Both use layers/layer_stride/block_stride/offset, tokens_per_state,
CircularBufferSpec and standardized backing; retire
shared_by/compress_ratio allocation branches. |
| #52839 |
`58e5ee0158b6a264c3506f00480e108a34b33ee3`<br>[vllm/v1/attention/ops/pcp.py](https://github.com/vllm-project/vllm/pull/52839/files#diff-23d7e7ab01a7f44414796e1e1b08cfa5277a05f54143ee2dd3a1041ca47772a8)
| Both import PCP operations from vllm.v1.attention.ops.pcp. |
| #53896 |
`e126687a9a828d513c01a07cd69f025f27d63280`<br>[vllm/v1/worker/mamba_utils.py](https://github.com/vllm-project/vllm/pull/53896/files#diff-8ab86225fa08e9a6700851191abcb3f4f8b0bba40e97a82aad700d7a23a4d7ec)
| Both use Mamba copy-function dictionaries and unwrap
UniformTypeKVCacheSpecs. |
| #53106 |
`1fe3a1571ac67581478a11743e55a306de1d136f`<br>[vllm/model_executor/models/utils.py](https://github.com/vllm-project/vllm/pull/53106/files#diff-b0ba1095e9881e5c87e33dfd20958d1e1ceafe8a4433aa692f468e61be130b21)
| Both use WeightsMapper instead of AutoWeightsLoader
skip_prefixes/skip_substrs. |
| #53906 |
`98ed0856f31fa3aaf5e27464e2b4ef5a8ee6b2f5`<br>[vllm/v1/kv_cache_interface.py](https://github.com/vllm-project/vllm/pull/53906/files#diff-f76cdfbf02dacd9dffbfbd0d9ad68a7a6ac0d8aed70834f95a2ae8ccd2e333cb)
| Only pinned main has the optional MLA storage_block_size dataclass
field; release keeps the Ascend derived property, using
tokens_per_state. |
| #56078 |
`719284fe158f1be8a9dd92953295fc9d49015730`<br>[vllm/config/model.py](https://github.com/vllm-project/vllm/pull/56078/files#diff-998c640befaf137b9af825f29f4e6e47d273caab1fd04093c97df24b18f5c417)
| Release retains uses_xdrope_dim and three M-RoPE dimensions; pinned
main uses mrope_num_dims and unified RoPE. |
| #52615 |
`138d137b5b955a5ebee98dfc946ecdd65d7b87ce`<br>[vllm/v1/kv_offload/cpu/spec.py](https://github.com/vllm-project/vllm/pull/52615/files#diff-7d073c26c9b22f74e9ff9e4c8da733d1807233edb83439fc64fbd48c43ae6045)
| Release uses num_blocks/kv_bytes_per_block; main uses
num_chunks/kv_bytes_per_chunk. |
| #51358 |
`6b110badbb22d3f66c7218b71138f13b7a6b3419`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/51358/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release now has boundary_state_offloads and KVConnectorBlockState;
remove partial_tail_offloads plumbing. |
| #54853 |
`0b066293f3c738a0cbd3a087bf893f2f4dcd61f2`<br>[vllm/v1/core/sched/output.py](https://github.com/vllm-project/vllm/pull/54853/files#diff-cafd89ce8a698a56acb24ada62831cbc7a980782f78a52d1742ba238031f296c)
| Release constructor takes block_ids snapshots; main takes req_ids and
resolve_block_ids. Keep exact release snapshot membership and main
lazy-resolution membership. |
| #53614 |
`144e79c8106da23141ac010394b782f730cc7fe8`<br>[vllm/v1/core/kv_cache_coordinator.py](https://github.com/vllm-project/vllm/pull/53614/files#diff-43875c71daa893ef7567e21633d9988c2baf95bef61e3a334a6d584d6444d725)
| Only main configures drop_eagle_checkpoint_block for replay-aligned
Mamba checkpoints. |
| #50514 |
`d87a440f88e28e5b37f9b1e22ce214d0426d5352`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/50514/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Release retains module-level PP/share symbols and Ascend PP
workaround; main has the subsequent PP integration. |
| #52809 |
`91a893de64722019ea2faf852e06cabe143b3490`<br>[vllm/v1/worker/gpu/spec_decode/dspark/utils.py](https://github.com/vllm-project/vllm/pull/52809/files#diff-2223c5e6b44b302db9bff4023777cc88b4427f4fb9d4a04476f6d6e4bd687393)
| Between v0.28.0 and v0.29.0, `_should_share` moved from a DSpark
module binding to a function-local import from Eagle utilities. The
shared Eagle patch remains effective; the old DSpark-module read/write
must be removed. |
| #54436 |
`6bafc049aae6c26e210162630914ee9177a4b586`<br>[vllm/v1/worker/gpu/input_batch.py](https://github.com/vllm-project/vllm/pull/54436/files#diff-106f39c08266f186830bb8fcd7fb1df35c0aaa5fd0ac5c17aac64aeddee48902)
| Release InputBatch requires max_seq_len_np; main removed it. |
| #52506 |
`adebc41b7e9f1085d3f73434e23beb76883b9eb4`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52506/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Only main accepts valid_dummy_state_slots/valid_state_slots capture
arguments. |
| #55212 |
`83990f5bcc0b5eb08b2f1fd1b109fa8a31b122f3`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/55212/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Release prepares DCP local sequence lengths before partitioning; main
initializes DCP metadata afterwards. |
| #53515 |
`b1fbbc2ade51e3826bc92e4733c9c692ee21d42d`<br>[vllm/v1/worker/gpu/pcp_manager.py](https://github.com/vllm-project/vllm/pull/53515/files#diff-45dad5fe975c2ec8d02124fa65579cf11bfe9169a94217ceae1de0ea29518127)
| Both accept padded_num_tokens for persistent PCP input buffers. |
| #53869 |
`b3af042abd8fe5a297ec3ec72db276fd661a67b3`<br>[vllm/v1/worker/gpu/cudagraph_utils.py](https://github.com/vllm-project/vllm/pull/53869/files#diff-fc699ff1c69fd17adb60116b3a7a20aa88b5187205f589952d0f3792475ec212)
| Both accept pcp_manager during graph capture. |
| #51031 |
`0ecc284790e5403f74b899524ef82ecb69f83cb3`<br>[vllm/v1/worker/gpu/block_table.py](https://github.com/vllm-project/vllm/pull/51031/files#diff-21052649468f36e592c9ed378a9cd7b4615c558fb4d10f034f7b4268d3b6f9e1)
| Both distinguish KV and kernel block sizes during DCP slot mapping. |
| #54282 |
`fe755c88995ad468882517b6c4bdd60138d46a3a`<br>[vllm/v1/worker/gpu/sample/gumbel.py](https://github.com/vllm-project/vllm/pull/54282/files#diff-02f7c5a06a2d23d544a07d57af16c7ffb74886469c8844385f51a719e329e6b8)
| Both gumbel sampling APIs include is_drafting. |
| #52188 |
`d1e3eee6fb8ed3623241ef5c8e3ac533f775bff9`<br>[vllm/v1/worker/gpu/spec_decode/dflash/speculator.py](https://github.com/vllm-project/vllm/pull/52188/files#diff-0220b514682125dea26026db2d7caa1a0d9c772d84452e9e124434d1e11be5f0)
| Both DFlash input kernels take cp_rank/CP_SIZE/CP_INTERLEAVE. |
| #53694 |
`5acc1c4e4b8730298cbff7a4a7c68c814dc24fd7`<br>[vllm/v1/worker/gpu/spec_decode/autoregressive/speculator.py](https://github.com/vllm-project/vllm/pull/53694/files#diff-3e7e2ba21d64e309503b7c5fe537363a7669fa1baf84d3c2e4891d9aed64fbe6)
| Both propose APIs take DPSyncState; remove the obsolete token-count
argument and retain replicated-PCP synchronization. |
| #49811 |
`01af92e175407231b1433b0aef01a1b9c983d955`<br>[vllm/v1/worker/gpu/spec_decode/extract_hidden_states.py](https://github.com/vllm-project/vllm/pull/49811/files#diff-b13061cd1be0bc80aaa9fce208fe9128aaaad25b3832c5f1693da1d4e8263f5e)
| Both support extract_hidden_states on MRV2; remove old unsupported
dispatch/skip. |
| #53508 |
`479eeb32d2b432dbb4e442fbd3f94ca2eca35d67`<br>[vllm/v1/worker/gpu_model_runner.py](https://github.com/vllm-project/vllm/pull/53508/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29)
| Both remove post_kv_cache_wake_up; retire release-only call. |
| #52494 |
`3ff4f02dfe69abc1a0375d1ea8d8d5cb25609fcc`<br>[vllm/models/kimi_k3/amd/mla.py](https://github.com/vllm-project/vllm/pull/52494/files#diff-aad295e6de3607a46cea22f9f1cca768d4937dc5e1d3ca58105513358ed4e4c1)
| Only main provides KimiK3MultiHeadLatentAttentionWrapper; retain
release exclusion. |
| #52861 |
`b09bd69b5bf14911abef9a0e8e493b83c8a38fa6`<br>[vllm/v1/spec_decode/llm_base_proposer.py](https://github.com/vllm-project/vllm/pull/52861/files#diff-56fcad87dae9192cb0ab1643473765096cc44e1e744dccf3b99c4f2d85360d28)
| Both include DeepseekV32MTPModel in the two-hidden-state architecture
set. |
| #54713 |
`b28c3e1568bfae930f61d4b24940e47528c85d4a`<br>[vllm/v1/core/single_type_kv_cache_manager.py](https://github.com/vllm-project/vllm/pull/54713/files#diff-97c184a680b7a4bd7d58b11aa0073706533cc887d990eddb98469e7374025ab3)
| Only main takes replay_boundaries in compressed-prefix hit lookup;
preserve release calls without that keyword. |
| #42785 |
`442d36031ce710aa2a777c353becb660c57ab2bd`<br>[vllm/v1/worker/encoder_cudagraph.py](https://github.com/vllm-project/vllm/pull/42785/files#diff-287435cc78f753ae42acda542bca01c094557cd17db6bc2991d968fd012c1f18)
| Only main capture callers pass axis_keys; preserve the existing Ascend
rejection of nonempty axes. |
| #52358 |
`8f816a3f665489d7f0d222115d4f72ebab01076b`<br>[vllm/v1/worker/gpu/model_runner.py](https://github.com/vllm-project/vllm/pull/52358/files#diff-5823f988fc0264681a80db24ccaba4d364f14394815d83ec1d90944c09f571f0)
| Both ExecuteModelState have dp_sync; only main has cudagraph_stats. |
| #52789 |
`9eb9d9d3953959695108600c8ed33d36bc6a1e5f`<br>[vllm/v1/core/sched/scheduler.py](https://github.com/vllm-project/vllm/pull/52789/files#diff-9eeca590fd99f15621897e559dba39b3ec4e7c2c65ec3c3229711689e008b5f4)
| Release already has mamba_has_prefill_checkpoint_blocks; later main
also has fine-grained prefix-cache state. |
| #51251 |
`7bbbf7c8e5040f7ebd374e8cbc657e01af1136dd`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/51251/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| v0.29.0 and main expose ec_manager_config; retire the old release-only
ScoreEncoder configuration skip. |
| #53240 |
`b2db227a7c4c5e55f85524a094b607e5d27408b4`<br>[vllm/model_executor/layers/fused_moe/routed_experts_capturer.py](https://github.com/vllm-project/vllm/pull/53240/files#diff-0bbfc19dd02619bbcc948fa0281d4ab9a5b77b7d5062cde9911319c93089535c)
| v0.29.0 supports MRV2 routed-expert capture and unwraps uniform cache
groups; retire the old release-only replay skip. |
| #53853 |
`e376d45e82cb7e220da430e3179e81eb0922cf56`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53853/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both delegate PCP compatibility validation to the PCP manager. |
| #53183 |
`4aab2b0ebed20343efe543c633f71b3c1336d5b8`<br>[vllm/config/vllm.py](https://github.com/vllm-project/vllm/pull/53183/files#diff-bee6813076031d3ca1edc903c1b02b81e4676519afc562ce3fefe37f20c7b650)
| Both expose the V1 unsupported-feature helper used by the existing
Ascend MRV1 feature filter. |






#### Additional inherited contracts











| vllm-ascend change | Why it is required | Upstream cause and direct
link | Lane | Verification |
|---|---|---|---|---|





| `_310p/worker/v2/model_state.py`: remove tuple-return and RecoverSSM
v0.28 fallbacks | v0.29.0 and fixed main both return `dict[MambaSpec,
list[int]]` from `get_mamba_groups` and both initialize `recoverssm`;
keeping the old fallback would preserve an unsupported third contract |
[v0.29.0 mamba
groups](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/mamba_utils.py#L691-L704),
[fixed-main mamba
groups](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/mamba_utils.py#L691-L704),
[v0.29.0
RecoverSSM](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103),
[fixed-main
RecoverSSM](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_states/mamba_hybrid.py#L80-L103)
| both, common implementation | Existing constructor UT now asserts the
parent-created RecoverSSM value is retained; Ruff and compileall pass |
| `worker/v2/model_runner.py`: always forward
`kv_cache_allocation_context` | v0.29.0 and fixed main both accept this
keyword; the new-base gate was specifically for v0.28.0 | [v0.29.0
signature](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/worker/gpu/model_runner.py#L533-L538),
[fixed-main
signature](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/v1/worker/gpu/model_runner.py#L561-L566),
[vllm-ascend
vllm-project#16791](https://github.com/vllm-project/vllm-ascend/pull/16791/files) |
both, common implementation | Existing UT continues to assert the exact
context object reaches the parent; Ruff and compileall pass |
| `_310p/worker/v2/model_runner.py`: select the release KV-zeroing
contract with `vllm_version_is("0.29.0")` | v0.29.0 exposes
`KVCacheGroupSpec.is_eagle_group` but lacks
`SpeculativeConfig.use_eagle_block_drop`; fixed main added the method |
vLLM [#53388
diff](https://github.com/vllm-project/vllm/pull/53388/files), commit
[`481839ad9e5ebf87aecb54fa5c9d986bd5ea4b81`](vllm-project/vllm@481839a);
[v0.29.0 group
field](https://github.com/vllm-project/vllm/blob/98dff2a81d747d1dba01a47f939f48c3526d4206/vllm/v1/kv_cache_interface.py#L1200),
[fixed-main
helper](https://github.com/vllm-project/vllm/blob/84030bbe3d74d99bad477a3d2e37a973ccd8865c/vllm/config/speculative.py#L1874-L1876)
| release differs from main | Existing two-path KV-zeroing UT retained
and renamed for v0.29.0; Ruff and compileall pass |
| existing DFlash kernel UT: remove v0.28-only kwarg omission | the
current Ascend kernel accepts the CP arguments and the only excluded
lane was v0.28.0, which this PR replaces | [vllm-ascend
vllm-project#15098](https://github.com/vllm-project/vllm-ascend/pull/15098/files) |
both, common invocation | Existing NPU test remains enabled with all
assertions; Current-head CI pending |
| Ascend change | Why / upstream cause | Lane | Verification |





|---|---|---|---|





| `patch/platform/patch_parallel_config.py`, registration, and global
patch documentation | Allow Ascend PCP+DP by removing the generic GPU
restriction, following vLLM
[#54523](https://github.com/vllm-project/vllm/pull/54523/files), commit
`7c2f1ff4958eaf0818405e9192c71608fe4a16b1`. Preserve dynamic
`parallel_config.current_platform` lookup and rebuild ParallelConfig →
SpeculativeConfig → VllmConfig. | v0.29.0 only | Existing
configuration/EPLB UTs and historical PCP+DP NPU execution passed;
current-head CI pending. |
| `ops/triton/v2/sample/categorical_sample.py`, existing Gumbel UT |
Both supported contracts require `is_drafting`, from
[#54282](https://github.com/vllm-project/vllm/pull/54282/files),
`fe755c88995ad468882517b6c4bdd60138d46a3a`; preserve the inherited
optimized kernel and use a common wrapper. | Both | Existing positive
drafting assertion retained; current-head CI pending. |
| `patch/platform/patch_kv_cache_coordinator.py`, existing prefix-cache
UT | Both support `cache_hit_alignment_tokens`, introduced by
[#53598](https://github.com/vllm-project/vllm/pull/53598/files),
`2ba984a5d06db414f3b2474fe9338faf6cd80a1c`; retire the v0.28-only
write-mask branch. | Both | Existing assertions retained; current-head
CI pending. |






#### Rebase and retired-fallback evidence











| Change | Exact source evidence | Decision |





|---|---|---|





| `tests/e2e/conftest.py::PROMPT_CONFIGS[HunyuanOCR]` | vLLM
[#53272](https://github.com/vllm-project/vllm/pull/53272/files#diff-0852f1e9753819abe4f85380abdc0660fd4a998f44bd7bb73d68f462bd776d95),
`d53b1c2efc0ca7161c3844f51ca9acbcdb7129d5` removes native Hunyuan V1/VL
before v0.29.0; both exact supported sources lack it. The old
conditional came from vllm-ascend
[vllm-project#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-824bc3e5c28226a3c0f4581750fa93a7da7001aff9e0ff4aee4131e3edd7b144),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Remove the v0.28.0
selector and use the existing exclusion for both supported lanes. This
does not migrate the protected SFA PCP skip or add a v0.29.0 accuracy
skip. |
| `vllm_ascend/worker/model_runner_v1.py` NaN helper imports and
`tests/ut/worker/test_model_runner_v1_nan_detection.py` | vLLM
[#50323](https://github.com/vllm-project/vllm/pull/50323/files#diff-80ee7e2a62f9dcfbb8a312dc4e3948557e97ef187290daebbcae1e28596bda29),
`12292d94b25869be2af6b6d4f8eea6c2445e935f`; both exact sources export
`nans_to_dict`, `gpu_sync_allowed`, and `raise_if_nan_logits`. The
v0.28.0 fallback originated in vllm-ascend
[vllm-project#14898](https://github.com/vllm-project/vllm-ascend/pull/14898/files#diff-c49594855b615477bbc34f06d2d423a7dd84c021a7925cd1f61fdb79cb814c08),
`e5118d151314ae18e56c0b63aa8dd00d294adc22`. | Delete
import-failure/`None` fallbacks and the existing UT's obsolete
availability skip; assertions remain unchanged and execute on both
lanes. |
| `vllm_ascend/worker/v2/aclgraph_utils.py` | vllm-ascend
[vllm-project#16409](https://github.com/vllm-project/vllm-ascend/pull/16409/files#diff-dc1c8a80dadf23627467bf04d6bc59fe13c6d075b7d2564d0acc07dc97d921f3),
`799801feef347469d5e9b39374b9210e0d4f7431`. | Preserve the upstream
revert while resolving the real rebase conflict; do not reintroduce the
reverted graph-update behavior. |
| `vllm_ascend/_310p/worker/v2/model_runner.py` | vllm-ascend
[vllm-project#16043](https://github.com/vllm-project/vllm-ascend/pull/16043/files#diff-2f27611a7cfbbdb780b9e88157f05d14d6dfe65406c8d66a5ba1f6949124f5d2),
`d4d2957e5208c2f464d4625c05920bd29ea233cb`. | Preserve the newly merged
310P MTP copy tracking and remove only the v0.28.0 descriptor/allocation
branch. |






</details>













</details>



### Does this PR introduce _any_ user-facing change?



Yes. The supported vLLM release and default container builds move to
v0.29.0, while the fixed main remains supported. The vllm-ascend package
version does not change. Existing 0.29-only PCP+DP compatibility is
restored.


### How was this patch tested?

- Final E2E result for head `a3b76b073a201851454e873aa89fc2254992fc06`:
[run
35504646654](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646654)
succeeded (39 successful jobs, 6 skipped). Raw logs from all 32 selected
NPU jobs confirm the requested Ascend head, integration base
`2de71b594319bde52c8bded69eba154f50be8e75`, and the actual vLLM
pins/installations: fixed main
`84030bbe3d74d99bad477a3d2e37a973ccd8865c` /
`0.1.dev1+g84030bbe3.empty`, release
`98dff2a81d747d1dba01a47f939f48c3526d4206` / `0.29.0+empty`. Each lane
totals **563 passed, 35 skipped, 1 xfailed** across its selected pytest
invocations. Skips/xfails are not passes. The resulting rebased
integration commit is not printed and is not inferred. Actual release
CPU and failed/cancelled image variants remain gaps.


- Current-head CI update (2026-09-20): [main CPU
UT](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646654/job/106062951955)
passed **5157 tests**, with **67 skipped**; actual installed vLLM was
`0.1.dev1+g84030bbe3.empty`. Ascend checkout was the current PR head;
the log does not print the full resulting integration head/base.
Pre-commit and mypy passed. NPU/E2E results are recorded above; actual
release CPU remains unverified.
- Image build is partially blocked by infrastructure: A5 amd64
[Ubuntu](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062362005)
and
[openEuler](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062362068)
failed before reading the Dockerfile because BuildKit could not create a
snapshot temporary directory (`no space left on device`). No release
compatibility code change is justified by this failure; cancelled
variants remain unverified. The successful [310P openEuler arm64
build](https://github.com/vllm-project/vllm-ascend/actions/runs/35504646536/job/106062361987)
explicitly checked out release
`98dff2a81d747d1dba01a47f939f48c3526d4206` and installed `0.29.0+empty`;
this is build evidence, not runtime UT coverage.


- Current head: `a3b76b073a201851454e873aa89fc2254992fc06`, rebased onto
the baseline above. Previous-head CPU [job
106060931458](https://github.com/vllm-project/vllm-ascend/actions/runs/35503843936/job/106060931458)
stopped during Ascend integration rebase after vllm-project#16803 merged, before any
UT ran. Its vLLM checkout was the fixed main and installation reported
`0.1.dev1+g84030bbe3.empty`. The two import conflicts are resolved;
fresh-head CI was retriggered by the push.


- Remote official v0.29.0 tag resolved to the exact SHA above; both
source pins inspected.
- All 95 changed Python files pass Ruff lint, Ruff format and AST
parsing; `git diff --check` passes. Dockerfile tag/marker consistency
checked across all eight variants.
- Full pre-commit invocation: Ruff, codespell, typos, clang-format,
markdownlint, actionlint, package-init, forbidden-import and
boolean-context checks passed. Bash-dependent hooks cannot run on this
Windows host; Python launcher hooks exit 9009. Full CI lint remains
pending.
- Actual main/release CPU/NPU and image builds are not claimed locally:
the required Linux/NPU/container environment is unavailable. New PR E2E
and image-build CI are requested. Existing CPU workflow runs fixed main
only, so actual release CPU remains a validation gap.
- vllm-project#16393's historical green CI is not a substitute for this new head. No
new test functions, workflow changes, golden/threshold changes or
additional skips are introduced beyond restoring vllm-project#16393. Inherited
0.28-only tests/skips are not counted as passes.

- vLLM main:
vllm-project/vllm@84030bb

Signed-off-by: shenzhao <shenzhao9@huawei.com>
Co-authored-by: shenzhao <shenzhao9@huawei.com>
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