[PATCH 2/5] Log ring disable.

[Martin Harvey <Martin.Harvey@xxxxxxxxxx>]

Since Rx/Tx ring disconnects now no longer wait forever, we add
some logging to catch those cases where the disconnect has timed out,
indicating how many requests are still in the ring.

This aids greatly with customer debugging.

Signed-off-by: Martin Harvey <martin.harvey@xxxxxxxxxx>
---
 src/xenvif/receiver.c    | 16 ++++++++++++++++
 src/xenvif/transmitter.c |  6 ++++++
 2 files changed, 22 insertions(+)

diff --git a/src/xenvif/receiver.c b/src/xenvif/receiver.c
index c70d938..7295646 100644
--- a/src/xenvif/receiver.c
+++ b/src/xenvif/receiver.c
@@ -2887,6 +2887,22 @@ __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))
+    {
+        Info("%s[%u]: Ring disconnect, counts do not match.\n",
+            FrontendGetPath(Frontend),
+            Ring->Index);
+
+        Info("%s[%u]: Processed: %u Pushed: %u Posted: %u\n",
+            FrontendGetPath(Frontend),
+            Ring->Index,
+            Ring->ResponsesProcessed,
+            Ring->RequestsPushed,
+            Ring->RequestsPosted);
+    }
+
     Ring->ResponsesProcessed = 0;
     Ring->RequestsPushed = 0;
     Ring->RequestsPosted = 0;
diff --git a/src/xenvif/transmitter.c b/src/xenvif/transmitter.c
index fddeb0c..47f2fc2 100644
--- a/src/xenvif/transmitter.c
+++ b/src/xenvif/transmitter.c
@@ -4005,6 +4005,12 @@ __TransmitterRingDisable(
     }
     if (Ring->ResponsesProcessed != Ring->RequestsPushed)
     {
+        Info("%s[%u]: Timed out disable: Requests pushed: %u, Responses 
processed: %u.\n",
+            FrontendGetPath(Frontend),
+            Ring->Index,
+            Ring->RequestsPushed,
+            Ring->ResponsesProcessed);
+
         __TransmitterRingFakeResponses(Ring);
         (VOID) TransmitterRingPoll(Ring);
     }
-- 
2.25.0.windows.1