---
id: pr-sglang-12214
repo: sgl-project/sglang
pr: 12214
title: '[Ascend][feature] support L1+ L2 radixcache on ascend'
author: khalil2ji3mp6
date: '2025-11-12'
url: https://github.com/sgl-project/sglang/pull/12214
source_category: upstream-code
architectures:
- sm100
tags:
- attention
techniques: []
hardware_features: []
kernel_types:
- attention
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 2d531946dbbd08ada3bbefe0c6e9f5adb553d91e
inclusion_reason: kernel file changes
changed_paths:
- docs/advanced_features/server_arguments.md
- python/sglang/srt/layers/attention/ascend_backend.py
- python/sglang/srt/managers/cache_controller.py
- python/sglang/srt/mem_cache/memory_pool_host.py
- python/sglang/srt/server_args.py
- python/sglang/srt/utils/common.py
- scripts/ci/npu_ci_install_dependency.sh
- test/srt/ascend/test_ascend_hicache_mha.py
- test/srt/run_suite.py
head_ref_oid: 8c6f1b527e4550379ccc9bd5fb785c7ad5cb584b
artifact_dir: evidence/pull-bundles/sglang/gh-12214
---
# [Ascend][feature] support L1+ L2 radixcache on ascend

- Repository: `sgl-project/sglang`
- PR: [12214](https://github.com/sgl-project/sglang/pull/12214)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `docs/advanced_features/server_arguments.md`
- `python/sglang/srt/layers/attention/ascend_backend.py`
- `python/sglang/srt/managers/cache_controller.py`
- `python/sglang/srt/mem_cache/memory_pool_host.py`
- `python/sglang/srt/server_args.py`
- `python/sglang/srt/utils/common.py`
- `scripts/ci/npu_ci_install_dependency.sh`
- `test/srt/ascend/test_ascend_hicache_mha.py`
- `test/srt/run_suite.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-12214`
