[Bug 209232] [ipfilter] ipfilter reports OOW packets with tso on ixgbe

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=209232

            Bug ID: 209232
           Summary: [ipfilter] ipfilter reports OOW packets with tso on
                    ixgbe
           Product: Base System
           Version: 10.3-RELEASE
          Hardware: Any
                OS: Any
            Status: New
          Severity: Affects Only Me
          Priority: ---
         Component: kern
          Assignee: freebsd-bugs at FreeBSD.org
          Reporter: ruben at rubenkerkhof.com

With tso enabled, doing large transfers with rsync stall after a few MB.

ipmon reports:

May  3 13:33:20 stor3a ipmon[620]: 13:33:20.318802 lagg0 @0:2 b
84.22.102.2,50203 -> 164.138.24.148,22 PR tcp len 20 52 -A IN OOW
May  3 13:33:20 stor3a ipmon[620]: 13:33:20.479821 lagg0 @0:2 b
84.22.102.2,50203 -> 164.138.24.148,22 PR tcp len 20 104 -AP IN OOW
May  3 13:33:20 stor3a ipmon[620]: 13:33:20.510679 lagg0 @0:2 b
84.22.102.2,50203 -> 164.138.24.148,22 PR tcp len 20 64 -A IN OOW
May  3 13:33:20 stor3a ipmon[620]: 13:33:20.786940 lagg0 @0:2 b
84.22.102.2,50203 -> 164.138.24.148,22 PR tcp len 20 64 -A IN OOW
May  3 13:33:20 stor3a ipmon[620]: 13:33:20.885885 lagg0 @0:2 b
84.22.102.2,50203 -> 164.138.24.148,22 PR tcp len 20 104 -AP IN OOW

I can reliable reproduce this. When I disable tso, the transfers complete and I
have no more OOW messages in my logs.

My /etc/ipf.rules:

pass in quick on lo0 all
pass out quick on lo0 all
block in log first all
pass in quick proto tcp from 84.22.102.2/32 to any port = 22 flags S keep state
pass out quick keep state

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