svn commit: r309244 - head/sys/dev/hyperv/vmbus

[Sepherosa Ziehau]

Author: sephe
Date: Mon Nov 28 07:44:50 2016
New Revision: 309244
URL: https://svnweb.freebsd.org/changeset/base/309244

Log:
  hyperv/vmbus: Add exec cancel support for message Hypercall API.
  
  MFC after:	1 week
  Sponsored by:	Microsoft
  Differential Revision:	https://reviews.freebsd.org/D8635

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 07:41:01 2016	(r309243)
+++ head/sys/dev/hyperv/vmbus/vmbus.c	Mon Nov 28 07:44:50 2016	(r309244)
@@ -307,6 +307,13 @@ vmbus_msghc_exec(struct vmbus_softc *sc 
 	return error;
 }
 
+void
+vmbus_msghc_exec_cancel(struct vmbus_softc *sc __unused, struct vmbus_msghc *mh)
+{
+
+	vmbus_xact_deactivate(mh->mh_xact);
+}
+
 const struct vmbus_message *
 vmbus_msghc_wait_result(struct vmbus_softc *sc __unused, struct vmbus_msghc *mh)
 {

Modified: head/sys/dev/hyperv/vmbus/vmbus_var.h
==============================================================================
--- head/sys/dev/hyperv/vmbus/vmbus_var.h	Mon Nov 28 07:41:01 2016	(r309243)
+++ head/sys/dev/hyperv/vmbus/vmbus_var.h	Mon Nov 28 07:44:50 2016	(r309244)
@@ -157,6 +157,8 @@ void		vmbus_msghc_put(struct vmbus_softc
 void		*vmbus_msghc_dataptr(struct vmbus_msghc *);
 int		vmbus_msghc_exec_noresult(struct vmbus_msghc *);
 int		vmbus_msghc_exec(struct vmbus_softc *, struct vmbus_msghc *);
+void		vmbus_msghc_exec_cancel(struct vmbus_softc *,
+		    struct vmbus_msghc *);
 const struct vmbus_message *
 		vmbus_msghc_wait_result(struct vmbus_softc *,
 		    struct vmbus_msghc *);