[PATCH] Add ring disconnect logging.

[Martin Harvey <Martin.Harvey@xxxxxxxxxx>]

Logging to note error cases which would otherwise be silent in release builds.
This aids greatly with customer debugging.

Signed-off-by: Martin Harvey <martin.harvey@xxxxxxxxxx>
---
 src/xenvif/receiver.c    | 9 +++++++++
 src/xenvif/transmitter.c | 4 ++++
 2 files changed, 13 insertions(+)

diff --git a/src/xenvif/receiver.c b/src/xenvif/receiver.c
index c70d938..123b2d7 100644
--- a/src/xenvif/receiver.c
+++ b/src/xenvif/receiver.c
@@ -2887,6 +2887,15 @@ __ReceiverRingDisconnect(
     ASSERT3U(Ring->ResponsesProcessed, ==, Ring->RequestsPushed);
     ASSERT3U(Ring->RequestsPushed, ==, Ring->RequestsPosted);
 
+    //Debug logs as well as assertion, else customer debugging difficult.
+    if ((Ring->ResponsesProcessed != Ring->RequestsPushed) ||
+        (Ring->RequestsPushed != Ring->RequestsPosted))
+    {
+        XENBUS_DEBUG(Trigger,
+                    &Receiver->DebugInterface,
+                    Ring->DebugCallback);
+    }
+
     Ring->ResponsesProcessed = 0;
     Ring->RequestsPushed = 0;
     Ring->RequestsPosted = 0;
diff --git a/src/xenvif/transmitter.c b/src/xenvif/transmitter.c
index de9b476..abda21b 100644
--- a/src/xenvif/transmitter.c
+++ b/src/xenvif/transmitter.c
@@ -4005,6 +4005,10 @@ __TransmitterRingDisable(
     }
     if (Ring->ResponsesProcessed != Ring->RequestsPushed)
     {
+        XENBUS_DEBUG(Trigger,
+                    &Transmitter->DebugInterface,
+                    Ring->DebugCallback);
+
         __TransmitterRingFakeResponses(Ring);
         (VOID) TransmitterRingPoll(Ring);
     }
-- 
2.25.0.windows.1