AVX-47819: Add support for recording ethtool stats (facebookincubator#12

)

Support for ethtool stats.

below/ethtool/build.rs

@@ -0,0 +1,15 @@
+/// This build script generates Rust bindings for the ethtool API.
+fn main() {
+    let api_dir = "src/api";
+
+    let bindings = bindgen::Builder::default()
+        .header(format!("{}/ethtool.h", api_dir))
+        .parse_callbacks(Box::new(bindgen::CargoCallbacks))
+        .generate()
+        .expect("Unable to generate bindings");
+
+    let out_path = std::path::PathBuf::from(std::env::var("OUT_DIR").unwrap());
+    bindings
+        .write_to_file(out_path.join("ethtool_bindings.rs"))
+        .expect("Couldn't write bindings!");
+}

below/ethtool/src/api/ethtool.h

@@ -0,0 +1 @@
+#include <linux/ethtool.h>