---
id: pr-sglang-22258
repo: sgl-project/sglang
pr: 22258
title: '[AMD][HIP] NSA: bf16 passthrough from RMSNorm to eliminate FP8 dequantization'
author: Jacob0226
date: '2026-04-10'
url: https://github.com/sgl-project/sglang/pull/22258
source_category: upstream-code
architectures:
- sm100
tags:
- attention
- fp8
- quantization
techniques: []
hardware_features:
- fp8
kernel_types:
- attention
- quantization
languages:
- python
captured_at: '2026-04-17'
status: merged
merge_sha: dd41764487447740cfe7e8141f62c627fd54ce09
inclusion_reason: kernel file changes
changed_paths:
- python/sglang/srt/layers/attention/nsa/nsa_indexer.py
- python/sglang/srt/layers/communicator.py
head_ref_oid: 88b7471f73a8404bf46254a889cd35f25f621b9f
artifact_dir: evidence/pull-bundles/sglang/gh-22258
---
# [AMD][HIP] NSA: bf16 passthrough from RMSNorm to eliminate FP8 dequantization

- Repository: `sgl-project/sglang`
- PR: [22258](https://github.com/sgl-project/sglang/pull/22258)
- Decision: `kernel file changes`
- Reason: kernel file changes

## Changed Paths

- `python/sglang/srt/layers/attention/nsa/nsa_indexer.py`
- `python/sglang/srt/layers/communicator.py`

## Evidence Bundle

`evidence/pull-bundles/sglang/gh-22258`
