[Bugfix] Fix DeepGEMM after #29546 (#30267)

Signed-off-by: zhewenli <zhewenli@meta.com>
Signed-off-by: Zhewen Li <zhewenli@meta.com>

vllm/model_executor/layers/quantization/utils/fp8_utils.py

@@ -30,6 +30,7 @@ from vllm.model_executor.parameter import (
 from vllm.platforms import current_platform
 from vllm.triton_utils import tl, triton
 from vllm.utils.deep_gemm import (
+    DeepGemmQuantScaleFMT,
     fp8_gemm_nt,
     is_deep_gemm_e8m0_used,
     is_deep_gemm_supported,
@@ -268,12 +269,15 @@ class W8A8BlockFp8LinearOp:
         weight: torch.Tensor,
         weight_scale: torch.Tensor,
     ) -> torch.Tensor:
-        assert self.deepgemm_input_quant_op is not None
+        if DeepGemmQuantScaleFMT.from_oracle() == DeepGemmQuantScaleFMT.UE8M0:
             q_input, input_scale = per_token_group_quant_fp8_packed_for_deepgemm(
                 input_2d,
                 group_size=self.act_quant_group_shape.col,
                 use_ue8m0=True,
             )
+        else:
+            assert self.deepgemm_input_quant_op is not None
+            q_input, input_scale = self.deepgemm_input_quant_op(input_2d)
         output = torch.empty(
             (q_input.shape[0], weight.shape[0]),
             dtype=torch.bfloat16,

vllm/utils/deep_gemm.py

@@ -399,6 +399,7 @@ def should_use_deepgemm_for_fp8_linear_for_nk(
 
 __all__ = [
     "calc_diff",
+    "DeepGemmQuantScaleFMT",
     "fp8_gemm_nt",
     "m_grouped_fp8_gemm_nt_contiguous",
     "fp8_m_grouped_gemm_nt_masked",