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[Kernel] add custom op GmmSwigluQuantWeightNzTensorList (#3804)

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### What this PR does / why we need it?

This PR introduces support for adding custom CANN `aclnn` ops to
`vllm-ascend`, allowing users to define and use their own custom
operators.

Key changes include:
- Building and installing custom ops into the `vllm-ascend`-specified
directory
- Binding the `aclnn` op interface to the `torch.ops._C_ascend` module
- Enabling invocation of these ops within `vllm-ascend`

This PR includes a sample custom op:
`aclnnGroupedMatmulSwigluQuantWeightNzTensorList`, which is adapted from
the CANN operator
[`aclnnGroupedMatmulSwigluQuantWeightNZ`](https://www.hiascend.com/document/detail/zh/canncommercial/83RC1/API/aolapi/context/aclnnGroupedMatmulSwigluQuantWeightNZ.md).
Its input parameters `weight` and `weight_scale` now accept
`list[torch.Tensor]` (i.e., `at::TensorList`).

### Does this PR introduce _any_ user-facing change?

No.


- vLLM version: v0.11.2

---------

Signed-off-by: QianChenxi <chenxi.qian.cq@outlook.com>
This commit is contained in:
Chenxi Qian
2025-11-28 18:06:39 +08:00
committed by GitHub
parent 3199fe8350
commit 554f16ae1f
50 changed files with 6934 additions and 7 deletions
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vllm_ascend/_cann_ops_custom/.gitkeep Normal file
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# This folder is reserved for the installation of custom aclnn operators tailored for vLLM-Ascend.
# Source code of the operators can be found in the `src` folder.
# The operators are compiled into a custom CANN software package and installed to this folder automatically.