build: Revert "chore: update nixl to 0.4.0 release" (#1880)

Cargo.lock

@@ -4388,9 +4388,9 @@ dependencies = [
 
 [[package]]
 name = "nixl-sys"
-version = "0.4.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97f621270fd1ed8af5a8028a1945e6f7e612a38836ce82b720fe54222739df3c"
+checksum = "55f74dbb6d0e18023aa6ce29563114b848f23c3c2f9d663383eb3cd590a1eacc"
 dependencies = [
  "bindgen 0.71.1",
  "cc",

container/build.sh

@@ -114,7 +114,7 @@ SGLANG_BASE_IMAGE_TAG="25.01-cuda12.8-devel-ubuntu24.04"
 VLLM_V1_BASE_IMAGE="nvcr.io/nvidia/cuda-dl-base"
 VLLM_V1_BASE_IMAGE_TAG="25.01-cuda12.8-devel-ubuntu24.04"
 
-NIXL_COMMIT=3c47a48955e6f96bd5d4fb43a9d80bb64722f8e4
+NIXL_COMMIT=3503658e71143b56f9d5b1b440d84a94b9c41af8
 NIXL_REPO=ai-dynamo/nixl.git
 
 NIXL_UCX_EFA_REF=7ec95b95e524a87e81cac92f5ca8523e3966b16b

docs/support_matrix.md

@@ -73,7 +73,7 @@ If you are using a **GPU**, the following GPU models and architectures are suppo
 | ai-dynamo          | 0.3.2         | >=2.28                               |              |
 | ai-dynamo-runtime  | 0.3.2         | >=2.28 (Python 3.12 has known issues)|              |
 | ai-dynamo-vllm     | 0.8.4.post4¹  | >=2.28 (recommended)                 |              |
-| NIXL               | 0.4.0         | >=2.27                               | >=11.8       |
+| NIXL               | 0.3.1         | >=2.27                               | >=11.8       |
 
 ### Build Dependency
 
@@ -81,8 +81,8 @@ If you are using a **GPU**, the following GPU models and architectures are suppo
 | :------------------- | :------------------------------------------------------------------------------- |
 | **Base Container**   | [25.03](https://catalog.ngc.nvidia.com/orgs/nvidia/containers/cuda-dl-base/tags) |
 | **ai-dynamo-vllm**   | 0.8.4.post4¹                                                                     |
-| **TensorRT-LLM**     | 1.0.0rc²                                                                         |
-| **NIXL**             | 0.4.0                                                                            |
+| **TensorRT-LLM**     | 1.0.0rc²                                                                        |
+| **NIXL**             | 0.3.1                                                                            |
 
 > [!Important]
 > ¹ ai-dynamo-vllm `v0.8.4.post4` is a customized patch of `v0.8.4` from vLLM.

lib/bindings/python/Cargo.lock

@@ -3934,9 +3934,9 @@ dependencies = [
 
 [[package]]
 name = "nixl-sys"
-version = "0.4.0"
+version = "0.3.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "97f621270fd1ed8af5a8028a1945e6f7e612a38836ce82b720fe54222739df3c"
+checksum = "55f74dbb6d0e18023aa6ce29563114b848f23c3c2f9d663383eb3cd590a1eacc"
 dependencies = [
  "bindgen 0.71.1",
  "cc",

lib/llm/Cargo.toml

@@ -89,7 +89,7 @@ rayon = "1"
 dialoguer = { version = "0.11", default-features = false, features = ["editor", "history"] }
 
 # block_manager
-nixl-sys = {version = "0.4.0", optional = true }
+nixl-sys = {version = "0.3.1", optional = true }
 cudarc = { version = "0.16.2", features = ["cuda-12020"], optional = true }
 ndarray = { version = "0.16", optional = true }
 nix = { version = "0.26", optional = true }