---
id: pr-vllm-32795
repo: vllm-project/vllm
pr: 32795
title: '[Bugfix][Attention] Explicitly report support for kv_cache_dtype bfloat16'
author: MatthewBonanni
date: '2026-01-22'
url: https://github.com/vllm-project/vllm/pull/32795
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- mla
- quantization
techniques: []
hardware_features: []
kernel_types:
- attention
- mla
- quantization
languages:
- triton
captured_at: '2026-04-27'
status: merged
merge_sha: 955b43a5a5142046bd8a1bd22fd219bf944a6265
inclusion_reason: kernel file changes
changed_paths:
- vllm/model_executor/layers/quantization/kv_cache.py
- vllm/platforms/cpu.py
- vllm/v1/attention/backend.py
- vllm/v1/attention/backends/flash_attn.py
- vllm/v1/attention/backends/flashinfer.py
- vllm/v1/attention/backends/flex_attention.py
- vllm/v1/attention/backends/mla/cutlass_mla.py
- vllm/v1/attention/backends/mla/flashattn_mla.py
- vllm/v1/attention/backends/mla/flashinfer_mla.py
- vllm/v1/attention/backends/mla/flashmla.py
- vllm/v1/attention/backends/mla/flashmla_sparse.py
- vllm/v1/attention/backends/mla/triton_mla.py
- vllm/v1/attention/backends/triton_attn.py
head_ref_oid: 4bfed7d8e9d0d1b74b463f0f277fac17b6585288
artifact_dir: evidence/pull-bundles/vllm/gh-32795
---
# [Bugfix][Attention] Explicitly report support for kv_cache_dtype bfloat16

- Repository: `vllm-project/vllm`
- PR: [32795](https://github.com/vllm-project/vllm/pull/32795)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `vllm/model_executor/layers/quantization/kv_cache.py`
- `vllm/platforms/cpu.py`
- `vllm/v1/attention/backend.py`
- `vllm/v1/attention/backends/flash_attn.py`
- `vllm/v1/attention/backends/flashinfer.py`
- `vllm/v1/attention/backends/flex_attention.py`
- `vllm/v1/attention/backends/mla/cutlass_mla.py`
- `vllm/v1/attention/backends/mla/flashattn_mla.py`
- `vllm/v1/attention/backends/mla/flashinfer_mla.py`
- `vllm/v1/attention/backends/mla/flashmla.py`
- `vllm/v1/attention/backends/mla/flashmla_sparse.py`
- `vllm/v1/attention/backends/mla/triton_mla.py`
- `vllm/v1/attention/backends/triton_attn.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-32795`
