---
id: pr-vllm-35891
repo: vllm-project/vllm
pr: 35891
title: '[Perf] Support FP8 KV cache for Flashinfer MLA Sparse'
author: wzhao18
date: '2026-03-07'
url: https://github.com/vllm-project/vllm/pull/35891
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- fp8
- mla
techniques: []
hardware_features:
- fp8
kernel_types:
- attention
- mla
languages:
- python
captured_at: '2026-04-27'
status: merged
merge_sha: 379689d533642cfc1d3ab2cf4dc02f09a8318a5f
inclusion_reason: kernel file changes
changed_paths:
- docs/design/attention_backends.md
- tests/v1/attention/test_mla_backends.py
- tests/v1/attention/test_sparse_mla_backends.py
- tools/pre_commit/generate_attention_backend_docs.py
- vllm/model_executor/layers/attention/mla_attention.py
- vllm/model_executor/models/config.py
- vllm/v1/attention/backends/mla/flashinfer_mla_sparse.py
- vllm/v1/attention/backends/mla/flashmla_sparse.py
head_ref_oid: 88bdc7cfa9d4f5c4f679d3fab1a56f1dc3877c77
artifact_dir: evidence/pull-bundles/vllm/gh-35891
---
# [Perf] Support FP8 KV cache for Flashinfer MLA Sparse

- Repository: `vllm-project/vllm`
- PR: [35891](https://github.com/vllm-project/vllm/pull/35891)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `docs/design/attention_backends.md`
- `tests/v1/attention/test_mla_backends.py`
- `tests/v1/attention/test_sparse_mla_backends.py`
- `tools/pre_commit/generate_attention_backend_docs.py`
- `vllm/model_executor/layers/attention/mla_attention.py`
- `vllm/model_executor/models/config.py`
- `vllm/v1/attention/backends/mla/flashinfer_mla_sparse.py`
- `vllm/v1/attention/backends/mla/flashmla_sparse.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-35891`
