Yongseok Koh fb870be5a8 net/mlx5: fix Tx doorbell memory barrier ... Configuring UAR as IO-mapped makes maximum throughput decline by noticeable amount. If UAR is configured as write-combining register, a write memory barrier is needed on ringing a doorbell. rte_wmb() is mostly effective when the size of a burst is comparatively small. Revert the register back to write-combining and enforce a write memory barrier instead, except for vectorized Tx burst routines. Application can change it by setting MLX5_SHUT_UP_BF under its own necessity. Fixes: 9f9bebae55 ("net/mlx5: don't map doorbell register to write combining") Signed-off-by: Yongseok Koh <yskoh@mellanox.com> Acked-by: Shahaf Shuler <shahafs@mellanox.com> Acked-by: Nelio Laranjeiro <nelio.laranjeiro@6wind.com>		2017-10-26 02:33:01 +02:00
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api	security: introduce security API and framework	2017-10-26 03:10:51 +02:00
guides	net/mlx5: fix Tx doorbell memory barrier	2017-10-26 02:33:01 +02:00
logo	doc: change theme of guides	2015-12-13 22:30:47 +01:00
build-sdk-quick.txt	doc: add tags and cscope make targets to quick help	2017-08-05 11:04:47 +02:00