K 10
svn:author
V 5
silby
K 8
svn:date
V 27
2003-04-09T02:21:54.000000Z
K 7
svn:log
V 472
Fix if_vr's handling of vr_encap failures.  3 parts:

- Don't bother setting OACTIVE when the descriptors are all full
  or there's a vr_encap failure, it doesn't help anything.
- Correctly roll back on the descriptor list after a failure
  so as not to corrupt the list.
- Add a missing VR_UNLOCK().

Without these changes, vr_encap failure (which is assured during
a low mbuf situation) would result in the card locking until
the watchdog could fire.

MFC after:	1 week

END