---
id: pr-vllm-20034
repo: vllm-project/vllm
pr: 20034
title: '[Attention] MLA - Flashinfer Ragged Prefill'
author: alexm-redhat
date: '2025-07-11'
url: https://github.com/vllm-project/vllm/pull/20034
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- mla
- prefill
techniques: []
hardware_features: []
kernel_types:
- attention
- mla
- prefill
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 5b032352cc7285ed0b0d5c2fcbb9b7deab85d6c6
inclusion_reason: kernel file changes
changed_paths:
- tests/v1/kv_connector/__init__.py
- tests/v1/kv_connector/unit/test_multi_connector.py
- tests/v1/kv_connector/unit/utils.py
- vllm/attention/layer.py
- vllm/attention/utils/kv_sharing_utils.py
- vllm/logger.py
- vllm/v1/attention/backends/flashinfer.py
- vllm/v1/attention/backends/mla/common.py
- vllm/v1/attention/backends/mla/cutlass_mla.py
- vllm/v1/attention/backends/utils.py
head_ref_oid: f7d64c83704c1d0d03f166458956b361943309b5
artifact_dir: evidence/pull-bundles/vllm/gh-20034
---
# [Attention] MLA - Flashinfer Ragged Prefill

- Repository: `vllm-project/vllm`
- PR: [20034](https://github.com/vllm-project/vllm/pull/20034)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `tests/v1/kv_connector/__init__.py`
- `tests/v1/kv_connector/unit/test_multi_connector.py`
- `tests/v1/kv_connector/unit/utils.py`
- `vllm/attention/layer.py`
- `vllm/attention/utils/kv_sharing_utils.py`
- `vllm/logger.py`
- `vllm/v1/attention/backends/flashinfer.py`
- `vllm/v1/attention/backends/mla/common.py`
- `vllm/v1/attention/backends/mla/cutlass_mla.py`
- `vllm/v1/attention/backends/utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-20034`
