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| author | Kaike Wan <kaike.wan@intel.com> | 2019-01-24 17:36:48 +0300 |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2019-02-06 01:53:55 +0300 |
| commit | a0b34f75ec209e40f06912380533ec525691544f (patch) | |
| tree | fc11bed576ed43e217c7719d88623d311d825aa4 /tools/perf/scripts/python/check-perf-trace.py | |
| parent | 24b11923da4c7dbf5690d3ac74710affaf564196 (diff) | |
| download | linux-a0b34f75ec209e40f06912380533ec525691544f.tar.xz | |
IB/hfi1: Add interlock between a TID RDMA request and other requests
This locking mechanism is designed to provent vavious memory corruption
scenarios from occurring when requests are pipelined, especially when
RDMA READ/WRITE requests are interleaved with TID RDMA READ/WRITE
requests:
1. READ-AFTER-READ;
2. READ-AFTER-WRITE;
3. WRITE-AFTER-READ;
When memory corruption is likely, a request will be held back until
previous requests have been completed.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Kaike Wan <kaike.wan@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'tools/perf/scripts/python/check-perf-trace.py')
0 files changed, 0 insertions, 0 deletions