[catpowder] XDP LibOS

.github/workflows/catnapw.yml

@@ -124,3 +124,104 @@ jobs:
         path: |
           **/*.stdout.txt
           **/*.stderr.txt
+
+  catpowder-debug-pipeline:
+    name: Catpowder Debug Pipeline
+    needs: release-pipeline
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Setup SSH
+      shell: bash
+      run: |
+        mkdir -p $HOME/.ssh/
+        echo "${{ secrets.SSHKEY }}" > "$HOME/.ssh/id_rsa"
+        chmod 400 $HOME/.ssh/id_rsa
+        echo "Host *" > $HOME/.ssh/config
+        echo -e "\tStrictHostKeyChecking no" >> $HOME/.ssh/config
+        echo -e "\tIdentityFile $HOME/.ssh/id_rsa" >> $HOME/.ssh/config
+        echo -e "\tIdentitiesOnly yes" >> $HOME/.ssh/config
+        echo -e "\tPasswordAuthentication no" >> $HOME/.ssh/config
+        echo -e "\tUser ${{ secrets.USERNAME }}" >> $HOME/.ssh/config
+        echo -e "\tPort ${{ secrets.PORTNUM }}" >> $HOME/.ssh/config
+    - name: Run
+      run: |
+        if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+          branch_name="${{ github.head_ref }}"
+        else
+          branch_name="${{ github.ref_name }}"
+        fi
+        python3 tools/demikernel_ci.py \
+          --platform windows \
+          --server $SERVER \
+          --client $CLIENT \
+          --repository 'c:\demikernel' \
+          --config-path 'c:\config.yaml' \
+          --branch origin/$branch_name \
+          --libos catpowder \
+          --test-unit --test-integration --test-system all \
+          --debug \
+          --delay 2 \
+          --server-addr $SERVER_ADDR \
+          --client-addr $CLIENT_ADDR
+    - name: Archive Logs
+      if: always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: catpowder-debug-pipeline-logs
+        path: |
+          **/*.stdout.txt
+          **/*.stderr.txt
+
+  catpowder-release-pipeline:
+    name: Catpowder Release Pipeline
+    needs: catpowder-debug-pipeline
+    runs-on: ubuntu-latest
+    steps:
+    - name: Checkout
+      uses: actions/checkout@v4
+      with:
+        fetch-depth: 0
+    - name: Setup SSH
+      shell: bash
+      run: |
+        mkdir -p $HOME/.ssh/
+        echo "${{ secrets.SSHKEY }}" > "$HOME/.ssh/id_rsa"
+        chmod 400 $HOME/.ssh/id_rsa
+        echo "Host *" > $HOME/.ssh/config
+        echo -e "\tStrictHostKeyChecking no" >> $HOME/.ssh/config
+        echo -e "\tIdentityFile $HOME/.ssh/id_rsa" >> $HOME/.ssh/config
+        echo -e "\tIdentitiesOnly yes" >> $HOME/.ssh/config
+        echo -e "\tPasswordAuthentication no" >> $HOME/.ssh/config
+        echo -e "\tUser ${{ secrets.USERNAME }}" >> $HOME/.ssh/config
+        echo -e "\tPort ${{ secrets.PORTNUM }}" >> $HOME/.ssh/config
+    - name: Run
+      run: |
+        if [[ "${{ github.event_name }}" == "pull_request" ]]; then
+          branch_name="${{ github.head_ref }}"
+        else
+          branch_name="${{ github.ref_name }}"
+        fi
+        python3 tools/demikernel_ci.py \
+          --platform windows \
+          --server $SERVER \
+          --client $CLIENT \
+          --repository 'c:\demikernel' \
+          --config-path 'c:\config.yaml' \
+          --branch origin/$branch_name \
+          --libos catpowder \
+          --test-unit --test-integration --test-system all \
+          --delay 2 \
+          --server-addr $SERVER_ADDR \
+          --client-addr $CLIENT_ADDR
+    - name: Archive Logs
+      if: always()
+      uses: actions/upload-artifact@v4
+      with:
+        name: catpowder-release-pipeline-logs
+        path: |
+          **/*.stdout.txt
+          **/*.stderr.txt

Cargo.toml

@@ -61,6 +61,7 @@ windows = { version = "0.57.0", features = [
     "Win32_System_Pipes",
     "Win32_System_Threading",
 ] }
+xdp-rs = { path = "xdp-rs", optional = true }
 # for interacting with socket2.
 windows-sys = { version = "0.52.0", features = ["Win32_Networking_WinSock"] }
 
@@ -154,6 +155,7 @@ catmem-libos = []
 catnip-libos = ["libdpdk"]
 catloop-libos = ["catmem-libos"]
 libdpdk = ["dpdk-rs"]
+libxdp = ["xdp-rs"]
 mlx4 = ["dpdk-rs/mlx4"]
 mlx5 = ["dpdk-rs/mlx5"]
 profiler = []

src/rust/catpowder/runtime/mod.rs → src/rust/catpowder/linux/mod.rs

@@ -8,7 +8,7 @@ mod rawsocket;
 //======================================================================================================================
 
 use crate::{
-    catpowder::runtime::rawsocket::{
+    catpowder::linux::rawsocket::{
         RawSocket,
         RawSocketAddr,
     },

src/rust/catpowder/runtime/rawsocket/rawsocket.rs → src/rust/catpowder/linux/rawsocket/rawsocket.rs

@@ -6,7 +6,7 @@
 //======================================================================================================================
 
 use crate::{
-    catpowder::runtime::RawSocketAddr,
+    catpowder::linux::RawSocketAddr,
     pal::data_structures::{
         SockAddr,
         SockAddrIn,

src/rust/catpowder/mod.rs

@@ -1,4 +1,14 @@
 // Copyright (c) Microsoft Corporation.
 // Licensed under the MIT license.
 
-pub mod runtime;
+#[cfg(target_os = "windows")]
+mod win;
+
+#[cfg(target_os = "windows")]
+pub use win::runtime::SharedCatpowderRuntime;
+
+#[cfg(target_os = "linux")]
+mod linux;
+
+#[cfg(target_os = "linux")]
+pub use linux::LinuxRuntime as SharedCatpowderRuntime;

src/rust/catpowder/win/api.rs

@@ -0,0 +1,71 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+//======================================================================================================================
+// Imports
+//======================================================================================================================
+
+use crate::runtime::fail::Fail;
+use ::std::ptr;
+use ::windows::core::{
+    Error,
+    HRESULT,
+};
+
+//======================================================================================================================
+// Structures
+//======================================================================================================================
+
+/// A wrapper structure for n XDP API endpoint.
+#[repr(C)]
+pub struct XdpApi(*const xdp_rs::XDP_API_TABLE);
+
+//======================================================================================================================
+// Implementations
+//======================================================================================================================
+
+impl XdpApi {
+    /// Opens a new XDP API endpoint.
+    pub fn new() -> Result<Self, Fail> {
+        let mut api: *const xdp_rs::XDP_API_TABLE = ptr::null_mut();
+
+        let result: HRESULT = unsafe { xdp_rs::XdpOpenApi(xdp_rs::XDP_API_VERSION_1, &mut api) };
+
+        let error: Error = Error::from_hresult(result);
+        match error.code().is_ok() {
+            true => Ok(Self(api)),
+            false => {
+                let fail: Fail = Fail::from(&error);
+                error!("new(): {:?}", &fail);
+                Err(fail)
+            },
+        }
+    }
+
+    /// Gets the API table from the target API endpoint.
+    pub fn get(&self) -> xdp_rs::XDP_API_TABLE {
+        unsafe {
+            // TODO: consider returning individual function pointers instead of the entire table.
+            let api: *const xdp_rs::XDP_API_TABLE = self.0;
+            *api
+        }
+    }
+}
+
+//======================================================================================================================
+// Trait Implementations
+//======================================================================================================================
+
+impl Drop for XdpApi {
+    fn drop(&mut self) {
+        let api: xdp_rs::XDP_API_TABLE = unsafe {
+            let api: *const xdp_rs::XDP_API_TABLE = self.0;
+            *api
+        };
+
+        // Closes the XDP API endpoint.
+        if let Some(close) = api.XdpCloseApi {
+            unsafe { close(self.0) };
+        }
+    }
+}

src/rust/catpowder/win/mod.rs

@@ -0,0 +1,16 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+//======================================================================================================================
+// Modules
+//======================================================================================================================
+
+mod api;
+mod ring;
+mod socket;
+
+//======================================================================================================================
+// Exports
+//======================================================================================================================
+
+pub mod runtime;

src/rust/catpowder/win/ring/buffer.rs

@@ -0,0 +1,100 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+//======================================================================================================================
+// Imports
+//======================================================================================================================
+
+use crate::catpowder::win::ring::umemreg::UmemReg;
+use ::std::{
+    cell::RefCell,
+    ops::{
+        Deref,
+        DerefMut,
+    },
+    rc::Rc,
+    vec::Vec,
+};
+
+//======================================================================================================================
+// Structures
+//======================================================================================================================
+
+/// A structure that represents a buffer in the UMEM region.
+pub struct XdpBuffer {
+    /// A pointer to the buffer descriptor.
+    b: *mut xdp_rs::XSK_BUFFER_DESCRIPTOR,
+    /// UMEM region that contains the buffer.
+    umemreg: Rc<RefCell<UmemReg>>,
+}
+
+//======================================================================================================================
+// Implementations
+//======================================================================================================================
+
+impl XdpBuffer {
+    /// Instantiates a buffer.
+    pub(super) fn new(b: *mut xdp_rs::XSK_BUFFER_DESCRIPTOR, umemreg: Rc<RefCell<UmemReg>>) -> Self {
+        Self { b, umemreg }
+    }
+
+    /// Sets the length of the target buffer.
+    pub(super) fn set_len(&mut self, len: usize) {
+        unsafe {
+            (*self.b).Length = len as u32;
+        }
+    }
+
+    /// Gets the length of the target buffer.
+    fn len(&self) -> usize {
+        unsafe { (*self.b).Length as usize }
+    }
+
+    /// Gets the relative base address of the target buffer.
+    unsafe fn relative_base_address(&self) -> u64 {
+        (*self.b).Address.__bindgen_anon_1.BaseAddress()
+    }
+
+    unsafe fn offset(&self) -> u64 {
+        (*self.b).Address.__bindgen_anon_1.Offset()
+    }
+
+    /// Computes the address of the target buffer.
+    unsafe fn compute_address(&self) -> *mut core::ffi::c_void {
+        let mut ptr: *mut u8 = self.umemreg.borrow_mut().address() as *mut u8;
+        ptr = ptr.add(self.relative_base_address() as usize);
+        ptr = ptr.add(self.offset() as usize);
+        ptr as *mut core::ffi::c_void
+    }
+
+    /// Creates a vector with the contents of the target buffer.
+    fn to_vector(&self) -> Vec<u8> {
+        let mut out: Vec<u8> = Vec::with_capacity(self.len());
+        self[..].clone_into(&mut out);
+        out
+    }
+}
+
+//======================================================================================================================
+// Trait Implementations
+//======================================================================================================================
+
+impl From<XdpBuffer> for Vec<u8> {
+    fn from(buffer: XdpBuffer) -> Vec<u8> {
+        buffer.to_vector()
+    }
+}
+
+impl Deref for XdpBuffer {
+    type Target = [u8];
+
+    fn deref(&self) -> &[u8] {
+        unsafe { std::slice::from_raw_parts(self.compute_address() as *const u8, self.len()) }
+    }
+}
+
+impl DerefMut for XdpBuffer {
+    fn deref_mut(&mut self) -> &mut [u8] {
+        unsafe { std::slice::from_raw_parts_mut(self.compute_address() as *mut u8, self.len()) }
+    }
+}

src/rust/catpowder/win/ring/generic.rs

@@ -0,0 +1,50 @@
+// Copyright (c) Microsoft Corporation.
+// Licensed under the MIT license.
+
+//======================================================================================================================
+// Structures
+//======================================================================================================================
+
+/// A wrapper structure for a XDP ring.
+#[repr(C)]
+pub struct XdpRing(xdp_rs::XSK_RING);
+
+//======================================================================================================================
+// Implementations
+//======================================================================================================================
+
+impl XdpRing {
+    /// Initializes a XDP ring.
+    pub(super) fn new(info: &xdp_rs::XSK_RING_INFO) -> Self {
+        Self(unsafe {
+            let mut ring: xdp_rs::XSK_RING = std::mem::zeroed();
+            xdp_rs::_XskRingInitialize(&mut ring, info);
+            ring
+        })
+    }
+
+    /// Reserves a consumer slot in the target ring.
+    pub(super) fn consumer_reserve(&mut self, count: u32, idx: *mut u32) -> u32 {
+        unsafe { xdp_rs::_XskRingConsumerReserve(&mut self.0, count, idx) }
+    }
+
+    /// Releases a consumer slot in the target ring.
+    pub(super) fn consumer_release(&mut self, count: u32) {
+        unsafe { xdp_rs::_XskRingConsumerRelease(&mut self.0, count) }
+    }
+
+    /// Reserves a producer slot in the target ring.
+    pub(super) fn producer_reserve(&mut self, count: u32, idx: *mut u32) -> u32 {
+        unsafe { xdp_rs::_XskRingProducerReserve(&mut self.0, count, idx) }
+    }
+
+    /// Submits a producer slot in the target ring.
+    pub(super) fn producer_submit(&mut self, count: u32) {
+        unsafe { xdp_rs::_XskRingProducerSubmit(&mut self.0, count) }
+    }
+
+    /// Gets the element at the target index.
+    pub(super) fn get_element(&self, idx: u32) -> *mut std::ffi::c_void {
+        unsafe { xdp_rs::_XskRingGetElement(&self.0, idx) }
+    }
+}