---
id: pr-vllm-37199
repo: vllm-project/vllm
pr: 37199
title: '[Misc] Add `float16` to `CacheDType`'
author: MatthewBonanni
date: '2026-03-16'
url: https://github.com/vllm-project/vllm/pull/37199
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- mla
techniques: []
hardware_features: []
kernel_types:
- attention
- mla
languages:
- triton
captured_at: '2026-04-17'
status: merged
merge_sha: 93f3c8e53157f55b45cb902bb12ba68bb69e062c
inclusion_reason: kernel file changes
changed_paths:
- docs/design/attention_backends.md
- vllm/config/cache.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/flashinfer_mla_sparse.py
- vllm/v1/attention/backends/mla/flashmla.py
- vllm/v1/attention/backends/mla/rocm_aiter_mla.py
- vllm/v1/attention/backends/mla/rocm_aiter_mla_sparse.py
- vllm/v1/attention/backends/mla/triton_mla.py
- vllm/v1/attention/backends/mla/xpu_mla_sparse.py
- vllm/v1/attention/backends/rocm_aiter_fa.py
- vllm/v1/attention/backends/rocm_attn.py
- vllm/v1/attention/backends/tree_attn.py
- vllm/v1/attention/backends/triton_attn.py
head_ref_oid: 4bc9f1aedf6fc532ef992249e08ce7d0afb34dc7
artifact_dir: evidence/pull-bundles/vllm/gh-37199
---
# [Misc] Add `float16` to `CacheDType`

- Repository: `vllm-project/vllm`
- PR: [37199](https://github.com/vllm-project/vllm/pull/37199)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `docs/design/attention_backends.md`
- `vllm/config/cache.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/flashinfer_mla_sparse.py`
- `vllm/v1/attention/backends/mla/flashmla.py`
- `vllm/v1/attention/backends/mla/rocm_aiter_mla.py`
- `vllm/v1/attention/backends/mla/rocm_aiter_mla_sparse.py`
- `vllm/v1/attention/backends/mla/triton_mla.py`
- `vllm/v1/attention/backends/mla/xpu_mla_sparse.py`
- `vllm/v1/attention/backends/rocm_aiter_fa.py`
- `vllm/v1/attention/backends/rocm_attn.py`
- `vllm/v1/attention/backends/tree_attn.py`
- `vllm/v1/attention/backends/triton_attn.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-37199`
