linux/drivers/infiniband/sw/rdmavt
Mike Marciniszyn 99f80d2f5f IB/hfi1: Optimize lkey validation structures
Profiling shows that the key validation is susceptible
to cache line trading when accessing the lkey table.

Fix by separating out the read mostly fields from the write
fields.   In addition the shift amount, which is function
of the lkey table size, is precomputed and stored with the
table pointer.   Since both the shift and table pointer
are in the same read mostly cacheline, this saves a cache
line in this hot path.

Reviewed-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
2016-11-15 16:25:59 -05:00
..
ah.c IB/rdmavt: Clean up comments and add more documentation 2016-03-10 20:38:08 -05:00
ah.h IB/rdmavt: Fix copyright date 2016-03-10 20:37:27 -05:00
cq.c kthread: kthread worker API cleanup 2016-10-11 15:06:33 -07:00
cq.h IB/rdmavt: Fix copyright date 2016-03-10 20:37:27 -05:00
dma.c IB/{rxe,core,rdmavt}: Fix kernel crash for reg MR 2016-10-06 13:50:04 -04:00
dma.h IB/rdmavt: Fix copyright date 2016-03-10 20:37:27 -05:00
Kconfig IB/rdmavt: Disable by default 2016-08-03 21:03:31 -04:00
mad.c IB/rdmavt: Clean up comments and add more documentation 2016-03-10 20:38:08 -05:00
mad.h IB/rdmavt: Clean up distinction between port number and index 2016-03-10 20:37:31 -05:00
Makefile IB/rdmavt: Add support for tracing events 2016-03-10 20:37:24 -05:00
mcast.c IB/rdmavt: Clean up comments and add more documentation 2016-03-10 20:38:08 -05:00
mcast.h IB/rdmavt: Fix copyright date 2016-03-10 20:37:27 -05:00
mmap.c IB/rdmavt: Remove unnecessary exported functions 2016-03-10 20:38:10 -05:00
mmap.h IB/rdmavt: Remove unnecessary exported functions 2016-03-10 20:38:10 -05:00
mr.c IB/hfi1: Optimize lkey validation structures 2016-11-15 16:25:59 -05:00
mr.h IB/rdmavt: Add support for ib_map_mr_sg 2016-08-02 16:00:58 -04:00
pd.c IB/rdmavt: Clean up comments and add more documentation 2016-03-10 20:38:08 -05:00
pd.h IB/rdmavt: Fix copyright date 2016-03-10 20:37:27 -05:00
qp.c IB/rdmavt: Trivial function comment corrected. 2016-10-03 10:55:27 -04:00
qp.h IB/rdmavt: Fix copyright date 2016-03-10 20:37:27 -05:00
srq.c IB/rdmavt: Remove unnecessary exported functions 2016-03-10 20:38:10 -05:00
srq.h IB/rdmavt: Add srq functionality to rdmavt 2016-03-10 20:37:30 -05:00
trace.c IB/rdmavt: Fix copyright date 2016-03-10 20:37:27 -05:00
trace.h IB/rdmavt: Add trace and error print statements in post_one_wr 2016-03-10 20:38:08 -05:00
vt.c IB/rdmavt: Add support for ib_map_mr_sg 2016-08-02 16:00:58 -04:00
vt.h IB/rdmavt: Remove unnecessary exported functions 2016-03-10 20:38:10 -05:00