Author: cperciva
Date: Sat Jul 30 20:02:08 2016
New Revision: 303558
URL: https://svnweb.freebsd.org/changeset/base/303558

Log:
  MFC r302929: Now that potentially buggy versions of Xen are automatically
  detected (see r302635, MFCed as r302895), there is no need to force msix
  interrupt migration off via loader.conf.
  
  Reverts:      r302184
  Approved by:  re (gjb)

Modified:
  stable/11/release/tools/ec2.conf
Directory Properties:
  stable/11/   (props changed)

Modified: stable/11/release/tools/ec2.conf
==============================================================================
--- stable/11/release/tools/ec2.conf    Sat Jul 30 19:03:32 2016        
(r303557)
+++ stable/11/release/tools/ec2.conf    Sat Jul 30 20:02:08 2016        
(r303558)
@@ -72,12 +72,6 @@ vm_extra_pre_umount() {
        # nodes, but apply the workaround just in case.
        echo 'hw.broken_txfifo="1"' >> ${DESTDIR}/boot/loader.conf
 
-       # Some EC2 instances run on a version of Xen which has a bug relating
-       # to the migration of MSI-X interrupts; this is visible as SR-IOV
-       # networking (aka. "EC2 Enhanced Networking") not being able to pass
-       # packets.  Disable MSI-X interrupt migration to work around this bug.
-       echo 'machdep.disable_msix_migration="1"' >> ${DESTDIR}/boot/loader.conf
-
        # The first time the AMI boots, the installed "first boot" scripts
        # should be allowed to run:
        # * ec2_configinit (download and process EC2 user-data)
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