Author: shurd
Date: Thu Apr 12 19:06:15 2018
New Revision: 332447
URL: https://svnweb.freebsd.org/changeset/base/332447
Log:
Work around netmap issue with ixgbe
After multiple start/stop of netmap, ixgbe will get into a bad state
requiring a reboot to recover. Adding a delay before stopping the interface
appears to work around the issue.
The -CURRENT driver has diverged too far from -STABLE for an MFC.
PR: 221317
Submitted by: Sylvain Galliano <s...@efficientip.com>
Reported by: Cassiano Peixoto <peixoto.cassi...@gmail.com>
Sponsored by: Limelight Networks
Modified:
stable/11/sys/dev/ixgbe/if_ix.c
Modified: stable/11/sys/dev/ixgbe/if_ix.c
==============================================================================
--- stable/11/sys/dev/ixgbe/if_ix.c Thu Apr 12 19:00:22 2018
(r332446)
+++ stable/11/sys/dev/ixgbe/if_ix.c Thu Apr 12 19:06:15 2018
(r332447)
@@ -3567,6 +3567,8 @@ ixgbe_stop(void *arg)
mtx_assert(&adapter->core_mtx, MA_OWNED);
+ msec_delay(1000);
+
INIT_DEBUGOUT("ixgbe_stop: begin\n");
ixgbe_disable_intr(adapter);
callout_stop(&adapter->timer);
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