IB/hfi1: Optimize packet type comparison using 9B and bypass code paths

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The packet type comparison used to find out if a packet is a bypass
packet in the hot path is an expensive operation as seen in a profile.

Determine packet's pkey and migration bit through the bypass and 9B
code paths instead.

Reviewed-by: Don Hiatt <don.hiatt@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>

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Sebastian Sanchez 2018-02-01 10:46:23 -08:00 • committed by Jason Gunthorpe

parent f150e2736f

commit 6d6b8848c8

5 changed files with 18 additions and 13 deletions

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include/rdma/ib_hdrs.h

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