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| author |   Mike Marciniszyn <mike.marciniszyn@intel.com> | 2019-02-26 08:46:16 -0800 |
|---|---|---|
| committer |   Jason Gunthorpe <jgg@mellanox.com> | 2019-03-26 09:33:21 -0300 |
| commit | 270a9833b2697d455f6ae12669b8220d3ea48f18 (patch) | |
| tree | 04e1dc0662bd7f1835797ff4633a066247a3a3c8 /drivers/infiniband/hw/hfi1/trace.c | |
| parent | RDMA: Use __packed annotation instead of __attribute__ ((packed)) (diff) | |
| download | linux-dev-270a9833b2697d455f6ae12669b8220d3ea48f18.tar.xz linux-dev-270a9833b2697d455f6ae12669b8220d3ea48f18.zip | |
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 'drivers/infiniband/hw/hfi1/trace.c')
0 files changed, 0 insertions, 0 deletions