feat(cq): implement generic CQ

src/verbs/completion.rs

@@ -397,6 +397,14 @@
     pub fn opcode(&self) -> u32 {
         self.wc.opcode
     }
+
+    pub fn vendor_err(&self) -> u32 {
+        self.wc.vendor_err
+    }
+
+    pub fn byte_len(&self) -> u32 {
+        self.wc.byte_len
+    }
 }
 
 pub struct ExtendedWorkCompletion<'iter> {
@@ -553,6 +561,102 @@
     }
 }
 
+#[derive(Debug)]
+pub enum GenericCompletionQueue<'cq> {
+    /// Variant for a Basic CQ
+    Basic(BasicCompletionQueue<'cq>),
+    /// Variant for an Extended CQ
+    Extended(ExtendedCompletionQueue<'cq>),
+}
+
+impl CompletionQueue for GenericCompletionQueue<'_> {
+    unsafe fn cq(&self) -> NonNull<ibv_cq> {
+        match self {
+            GenericCompletionQueue::Basic(cq) => cq.cq(),
+            GenericCompletionQueue::Extended(cq) => cq.cq(),
+        }
+    }
+}
+
+pub enum GenericPoller<'cq> {
+    Basic(BasicPoller<'cq>),
+    Extended(ExtendedPoller<'cq>),
+}
+
+impl GenericCompletionQueue<'_> {
+    pub fn start_poll(&self) -> Result<GenericPoller<'_>, String> {
+        match self {
+            GenericCompletionQueue::Basic(cq) => cq.start_poll().map(GenericPoller::Basic),
+            GenericCompletionQueue::Extended(cq) => cq.start_poll().map(GenericPoller::Extended),
+        }
+    }
+}
+
+impl<'cq> Iterator for GenericPoller<'cq> {
+    type Item = GenericWorkCompletion<'cq>;
+
+    fn next(&mut self) -> Option<Self::Item> {
+        match self {
+            GenericPoller::Basic(poller) => poller.next().map(GenericWorkCompletion::Basic),
+            GenericPoller::Extended(poller) => poller.next().map(GenericWorkCompletion::Extended),
+        }
+    }
+}
+
+pub enum GenericWorkCompletion<'iter> {
+    Basic(BasicWorkCompletion<'iter>),
+    Extended(ExtendedWorkCompletion<'iter>),
+}
+
+impl<'iter> GenericWorkCompletion<'iter> {
+    pub fn wr_id(&self) -> u64 {
+        match self {
+            GenericWorkCompletion::Basic(wc) => wc.wr_id(),
+            GenericWorkCompletion::Extended(wc) => wc.wr_id(),
+        }
+    }
+
+    pub fn status(&self) -> u32 {
+        match self {
+            GenericWorkCompletion::Basic(wc) => wc.status(),
+            GenericWorkCompletion::Extended(wc) => wc.status(),
+        }
+    }
+
+    pub fn opcode(&self) -> u32 {
+        match self {
+            GenericWorkCompletion::Basic(wc) => wc.opcode(),
+            GenericWorkCompletion::Extended(wc) => wc.opcode(),
+        }
+    }
+
+    pub fn vendor_err(&self) -> u32 {
+        match self {
+            GenericWorkCompletion::Basic(wc) => wc.vendor_err(),
+            GenericWorkCompletion::Extended(wc) => wc.vendor_err(),
+        }
+    }
+
+    pub fn byte_len(&self) -> u32 {
+        match self {
+            GenericWorkCompletion::Basic(wc) => wc.byte_len(),
+            GenericWorkCompletion::Extended(wc) => wc.byte_len(),
+        }
+    }
+}
+
+impl<'cq> From<BasicCompletionQueue<'cq>> for GenericCompletionQueue<'cq> {
+    fn from(cq: BasicCompletionQueue<'cq>) -> Self {
+        GenericCompletionQueue::Basic(cq)
+    }
+}
+
+impl<'cq> From<ExtendedCompletionQueue<'cq>> for GenericCompletionQueue<'cq> {
+    fn from(cq: ExtendedCompletionQueue<'cq>) -> Self {
+        GenericCompletionQueue::Extended(cq)
+    }
+}
+
 #[cfg(test)]
 mod tests {
     use super::*;

tests/test_post_send.rs

@@ -3,6 +3,7 @@
 use core::time;
 use std::{io::IoSlice, thread};
 
+use sideway::verbs::completion::GenericCompletionQueue;
 use sideway::verbs::queue_pair::GenericQueuePair;
 use sideway::verbs::{
     address::{AddressHandleAttribute, GidType},
@@ -18,9 +19,11 @@ use sideway::verbs::{
 use rstest::rstest;
 
 #[rstest]
-#[case(true)]
-#[case(false)]
-fn main(#[case] use_qp_ex: bool) -> Result<(), Box<dyn std::error::Error>> {
+#[case(true, true)]
+#[case(false, true)]
+#[case(true, false)]
+#[case(false, false)]
+fn main(#[case] use_qp_ex: bool, #[case] use_cq_ex: bool) -> Result<(), Box<dyn std::error::Error>> {
     let device_list = device::DeviceList::new()?;
     for device in &device_list {
         let ctx = device.open().unwrap();
@@ -31,27 +34,25 @@ fn main(#[case] use_qp_ex: bool) -> Result<(), Box<dyn std::error::Error>> {
 
         let _comp_channel = ctx.create_comp_channel().unwrap();
         let mut cq_builder = ctx.create_cq_builder();
-        let sq = cq_builder.setup_cqe(128).build().unwrap();
-        let rq = cq_builder.setup_cqe(128).build().unwrap();
+        cq_builder.setup_cqe(128);
+        let sq : GenericCompletionQueue = if use_cq_ex {
+            cq_builder.build_ex().unwrap().into()
+        } else {
+            cq_builder.build().unwrap().into()
+        };
+        let rq : GenericCompletionQueue = if use_cq_ex {
+            cq_builder.build_ex().unwrap().into()
+        } else {
+            cq_builder.build().unwrap().into()
+        };
 
         let mut builder = pd.create_qp_builder();
+        builder.setup_max_inline_data(128).setup_send_cq(&sq).setup_recv_cq(&rq);
 
         let mut qp: GenericQueuePair = if use_qp_ex {
-            builder
-                .setup_max_inline_data(128)
-                .setup_send_cq(&sq)
-                .setup_recv_cq(&rq)
-                .build_ex()
-                .unwrap()
-                .into()
+            builder.build_ex().unwrap().into()
         } else {
-            builder
-                .setup_max_inline_data(128)
-                .setup_send_cq(&sq)
-                .setup_recv_cq(&rq)
-                .build()
-                .unwrap()
-                .into()
+            builder.build().unwrap().into()
         };
 
         println!("qp pointer is {:?}", qp);