---
id: pr-sglang-10180
repo: sgl-project/sglang
pr: 10180
title: Fix chunked prefix cache for nvfp4
author: wenscarl
date: '2025-09-12'
url: https://github.com/sgl-project/sglang/pull/10180
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- fp4
- mla
- nvfp4
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- attention
- mla
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 36acd2ff16d9f0ed888691b99179f9c1531794a6
inclusion_reason: kernel file changes
changed_paths:
- python/sglang/srt/layers/attention/trtllm_mla_backend.py
- python/sglang/srt/model_executor/model_runner.py
- python/sglang/srt/models/deepseek_v2.py
head_ref_oid: 1d01fb4ec3506c29d850399c82c0dc8fddb466c2
artifact_dir: evidence/pull-bundles/sglang/gh-10180
---
# Fix chunked prefix cache for nvfp4

- Repository: `sgl-project/sglang`
- PR: [10180](https://github.com/sgl-project/sglang/pull/10180)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/sglang/srt/layers/attention/trtllm_mla_backend.py`
- `python/sglang/srt/model_executor/model_runner.py`
- `python/sglang/srt/models/deepseek_v2.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-10180`
