---
id: pr-vllm-19825
repo: vllm-project/vllm
pr: 19825
title: '[Core] Add Flashinfer TRTLLM Backend for Flashinfer decode path (SM100). '
author: pavanimajety
date: '2025-07-11'
url: https://github.com/vllm-project/vllm/pull/19825
source_category: upstream-code
architectures:
- sm100
tags: []
techniques: []
hardware_features: []
kernel_types: []
languages: []
captured_at: '2026-05-16'
status: merged
merge_sha: 7bd4c37ae7c6f2223c1a031bbdd2e3435d53da94
inclusion_reason: defer
changed_paths:
- benchmarks/kernels/benchmark_trtllm_attention.py
- tests/kernels/attention/test_flashinfer_trtllm_decode_attention.py
- vllm/attention/backends/flashinfer.py
- vllm/engine/arg_utils.py
- vllm/envs.py
- vllm/platforms/cuda.py
- vllm/v1/attention/backends/flashinfer.py
- vllm/v1/attention/backends/utils.py
artifact_dir: evidence/pull-bundles/vllm/gh-19825
head_ref_oid: 9bc615a38c37032c0e826499546532e871895f54
---
# [Core] Add Flashinfer TRTLLM Backend for Flashinfer decode path (SM100). 

- Repository: `vllm-project/vllm`
- PR: [19825](https://github.com/vllm-project/vllm/pull/19825)
- Decision: `defer`
- Reason: defer

## Changed Paths

- `benchmarks/kernels/benchmark_trtllm_attention.py`
- `tests/kernels/attention/test_flashinfer_trtllm_decode_attention.py`
- `vllm/attention/backends/flashinfer.py`
- `vllm/engine/arg_utils.py`
- `vllm/envs.py`
- `vllm/platforms/cuda.py`
- `vllm/v1/attention/backends/flashinfer.py`
- `vllm/v1/attention/backends/utils.py`

## Evidence Bundle

`evidence/pull-bundles/vllm/gh-19825`
