Author: sephe
Date: Mon Nov 28 07:36:51 2016
New Revision: 309242
URL: https://svnweb.freebsd.org/changeset/base/309242

Log:
  hyperv/vmbus: Add result polling support for message Hypercall API.
  
  MFC after:    1 week
  Sponsored by: Microsoft
  Differential Revision:        https://reviews.freebsd.org/D8634

Modified:
  head/sys/dev/hyperv/vmbus/vmbus.c
  head/sys/dev/hyperv/vmbus/vmbus_var.h

Modified: head/sys/dev/hyperv/vmbus/vmbus.c
==============================================================================
--- head/sys/dev/hyperv/vmbus/vmbus.c   Mon Nov 28 07:33:26 2016        
(r309241)
+++ head/sys/dev/hyperv/vmbus/vmbus.c   Mon Nov 28 07:36:51 2016        
(r309242)
@@ -315,6 +315,14 @@ vmbus_msghc_wait_result(struct vmbus_sof
        return (vmbus_xact_wait(mh->mh_xact, &resp_len));
 }
 
+const struct vmbus_message *
+vmbus_msghc_poll_result(struct vmbus_softc *sc __unused, struct vmbus_msghc 
*mh)
+{
+       size_t resp_len;
+
+       return (vmbus_xact_poll(mh->mh_xact, &resp_len));
+}
+
 void
 vmbus_msghc_wakeup(struct vmbus_softc *sc, const struct vmbus_message *msg)
 {

Modified: head/sys/dev/hyperv/vmbus/vmbus_var.h
==============================================================================
--- head/sys/dev/hyperv/vmbus/vmbus_var.h       Mon Nov 28 07:33:26 2016        
(r309241)
+++ head/sys/dev/hyperv/vmbus/vmbus_var.h       Mon Nov 28 07:36:51 2016        
(r309242)
@@ -160,6 +160,9 @@ int         vmbus_msghc_exec(struct vmbus_softc
 const struct vmbus_message *
                vmbus_msghc_wait_result(struct vmbus_softc *,
                    struct vmbus_msghc *);
+const struct vmbus_message *
+               vmbus_msghc_poll_result(struct vmbus_softc *,
+                   struct vmbus_msghc *);
 void           vmbus_msghc_wakeup(struct vmbus_softc *,
                    const struct vmbus_message *);
 void           vmbus_msghc_reset(struct vmbus_msghc *, size_t);
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