[dpdk-dev] [PATCH v2] regex/mlx5: add dynamic memory registration to datapath

Thomas Monjalon thomas at monjalon.net
Sun Oct 4 21:38:57 CEST 2020


Hi Yuval,

> From: Yuval Avnery <yuvalav at mellanox.com>
> 
> Currently job data is being copied to pre-registered buffer.
> To avoid memcpy on the datapath, use dynamic memory registration.
> 
> This change will reduce latency when sending regex jobs. The first few
> jobs may have high latency due to registration, but assuming all
> following mbufs will arrive from the same mempool/hugepage, there will
> be no further memory registration.
> 
> Signed-off-by: Yuval Avnery <yuvalav at mellanox.com>
> Acked-by: Ori Kam <orika at mellanox.com>

There is a compilation issue:
	drivers/regex/mlx5/mlx5_regex.c:200:
	undefined reference to `mlx5_os_set_reg_mr_cb'




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