[Fusion] change fusion env variable (#6201)

### What this PR does / why we need it?
Since CI has integrated Triton, `fuse_qknorm_rope` is enabled by
default.

### Does this PR introduce _any_ user-facing change?
N/A

### How was this patch tested?
CI passed with new added/existing test.


- vLLM version: v0.14.0
- vLLM main:
d68209402d

---------

Signed-off-by: wxsIcey <1790571317@qq.com>

docs/source/user_guide/configuration/additional_config.md

@@ -76,7 +76,8 @@ The details of each configuration option are as follows:
 | Name | Type | Default | Description |
 | ---- | ---- | ------- | ----------- |
 | `fuse_norm_quant`  | bool | `True` | Whether to enable fuse_norm_quant pass. |
-| `fuse_qknorm_rope` | bool | `False` | Whether to enable fuse_qknorm_rope pass. It's set to True by default when Triton is installed. |
+| `fuse_qknorm_rope` | bool | `True` | Whether to enable fuse_qknorm_rope pass. If Triton is not in the environment, set it to False. |
+| `fuse_allreduce_rms` | bool | `False` | Whether to enable fuse_allreduce_rms pass. It's set to False because of conflict with SP. |
 
 **eplb_config**
 

vllm_ascend/ascend_config.py

@@ -17,7 +17,6 @@ import os
 from typing import TYPE_CHECKING
 
 from vllm.logger import logger
-from vllm.triton_utils import HAS_TRITON
 from vllm.utils.math_utils import cdiv
 
 if TYPE_CHECKING:
@@ -190,7 +189,7 @@ class AscendCompilationConfig:
     """
 
     def __init__(
-        self, fuse_norm_quant: bool = True, fuse_qknorm_rope: bool = False, fuse_allreduce_rms: bool = False, **kwargs
+        self, fuse_norm_quant: bool = True, fuse_qknorm_rope: bool = True, fuse_allreduce_rms: bool = False, **kwargs
     ):
         """
         Initialize the configuration.
@@ -200,13 +199,13 @@ class AscendCompilationConfig:
                 When set to True, the system will optimize norm and quant operations.
                 Default: True
             fuse_qknorm_rope (bool): Whether to enable qknorm and rope fusion optimization.
-                Default: False
+                Default: True
             fuse_allreduce_rms (bool): Whether to enable allreduce and addrmsnorm fusion optimization.
                 Default: False
             **kwargs: Additional optional parameters for forward compatibility and configuration extension.
         """
         self.fuse_norm_quant = fuse_norm_quant
-        self.fuse_qknorm_rope = HAS_TRITON or fuse_qknorm_rope
+        self.fuse_qknorm_rope = fuse_qknorm_rope
         self.fuse_allreduce_rms = fuse_allreduce_rms