Hans Petter Selasky 90cc1c7724 Add support for CQE zipping. CQE zipping reduces PCI overhead by
coalescing and zipping multiple CQEs into a single merged CQE. The
feature is enabled by default and can be disabled by a sysctl.

Implementing this feature mlx5_cqwq_pop() has been separated from
mlx5e_get_cqe().

MFC after:	1 week
Submitted by:	Mark Bloch <markb@mellanox.com>
Differential Revision:	https://reviews.freebsd.org/D4598
Sponsored by:	Mellanox Technologies
2015-12-28 18:50:18 +00:00
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