svn commit: r321476 - head/sys/dev/ixgbe

[Ryan Stone]

On Tue, Jul 25, 2017 at 10:38 AM, Sean Bruno <sbruno at freebsd.org> wrote:
> Author: sbruno
> Date: Tue Jul 25 14:38:30 2017
> New Revision: 321476
> URL: https://svnweb.freebsd.org/changeset/base/321476
>
> Log:
>   Drop ixgbe RX lock during TCP_LRO processing.  This eliminates a "storm"
>   of LOR detection and a bit of lock release/acquire collision when using LRO.

Without the lock held how do we guarantee that multiple threads can't
be processing LRO at the same time?