diff options
| author | Mike Marciniszyn <mike.marciniszyn@intel.com> | 2019-02-26 11:46:16 -0500 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@mellanox.com> | 2019-03-26 08:33:21 -0400 |
| commit | 270a9833b2697d455f6ae12669b8220d3ea48f18 (patch) | |
| tree | 04e1dc0662bd7f1835797ff4633a066247a3a3c8 /include/linux/overflow.h | |
| parent | 19b1a294b0b3f4e8080584cd560fc058f12123fb (diff) | |
IB/hfi1: Add running average for adaptive pio
The adaptive PIO implementation only considers the current packet size
when deciding between SDMA and pio for a packet.
This causes credit return forces if small and large packets are
interleaved.
Add a running average to avoid costly credit forces so that a large
sequence of small packets is required to go below the threshold that
chooses pio.
Reviewed-by: Michael J. Ruhl <michael.j.ruhl@intel.com>
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
Diffstat (limited to 'include/linux/overflow.h')
0 files changed, 0 insertions, 0 deletions