---
id: pr-flashinfer-2702
repo: flashinfer-ai/flashinfer
pr: 2702
title: Add NVFP4 KV cache quantization support for SM100
author: sychen52
date: '2026-03-19'
url: https://github.com/flashinfer-ai/flashinfer/pull/2702
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- decode
- flash-attention
- fp4
- mla
- nvfp4
- prefill
- quantization
techniques: []
hardware_features:
- fp4
- nvfp4
kernel_types:
- attention
- decode
- flash-attention
- mla
- prefill
- quantization
languages:
- cuda-cpp
captured_at: '2026-04-27'
status: merged
merge_sha: fc4e70fd67d8e60c5e24bd4ce576532a7849d38a
inclusion_reason: kernel file changes
changed_paths:
- benchmarks/bench_trtllm_fmha.py
- benchmarks/routines/attention.py
- benchmarks/routines/flashinfer_benchmark_utils.py
- csrc/trtllm_fmha_kernel_launcher.cu
- flashinfer/__init__.py
- flashinfer/decode.py
- flashinfer/fp4_quantization.py
- flashinfer/mla.py
- flashinfer/prefill.py
- flashinfer/quantization/fp4_quantization.py
- include/flashinfer/trtllm/fmha/fmhaKernels.cuh
- include/flashinfer/trtllm/fmha/fmhaRunner.cuh
- include/flashinfer/trtllm/fmha/fmhaRunnerParams.h
- include/flashinfer/trtllm/fmha/kernelParams.h
- tests/attention/test_trtllm_gen_attention.py
head_ref_oid: de36999a4278760cfe2da0ae32ac416098736ede
artifact_dir: evidence/pull-bundles/flashinfer/gh-2702
---
# Add NVFP4 KV cache quantization support for SM100

- Repository: `flashinfer-ai/flashinfer`
- PR: [2702](https://github.com/flashinfer-ai/flashinfer/pull/2702)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `benchmarks/bench_trtllm_fmha.py`
- `benchmarks/routines/attention.py`
- `benchmarks/routines/flashinfer_benchmark_utils.py`
- `csrc/trtllm_fmha_kernel_launcher.cu`
- `flashinfer/__init__.py`
- `flashinfer/decode.py`
- `flashinfer/fp4_quantization.py`
- `flashinfer/mla.py`
- `flashinfer/prefill.py`
- `flashinfer/quantization/fp4_quantization.py`
- `include/flashinfer/trtllm/fmha/fmhaKernels.cuh`
- `include/flashinfer/trtllm/fmha/fmhaRunner.cuh`
- `include/flashinfer/trtllm/fmha/fmhaRunnerParams.h`
- `include/flashinfer/trtllm/fmha/kernelParams.h`
- `tests/attention/test_trtllm_gen_attention.py`

## Evidence Bundle

`evidence/pull-bundles/flashinfer/gh-2702`
