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author | Logan Gunthorpe <[email protected]> | 2017-12-18 11:25:05 -0700 |
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committer | Jon Mason <[email protected]> | 2018-01-28 22:17:23 -0500 |
commit | cbd27448faff4843ac4b66cc71445a10623ff48d (patch) | |
tree | ce5495ed11a622a3939417aaeba655bf739a765a /tools/perf/scripts/python/export-to-postgresql.py | |
parent | c3840c7c3b7cfa55fcd50e9987af9a8db4fdf489 (diff) |
ntb_transport: Fix bug with max_mw_size parameter
When using the max_mw_size parameter of ntb_transport to limit the size of
the Memory windows, communication cannot be established and the queues
freeze.
This is because the mw_size that's reported to the peer is correctly
limited but the size used locally is not. So the MW is initialized
with a buffer smaller than the window but the TX side is using the
full window. This means the TX side will be writing to a region of the
window that points nowhere.
This is easily fixed by applying the same limit to tx_size in
ntb_transport_init_queue().
Fixes: e26a5843f7f5 ("NTB: Split ntb_hw_intel and ntb_transport drivers")
Signed-off-by: Logan Gunthorpe <[email protected]>
Acked-by: Allen Hubbe <[email protected]>
Cc: Dave Jiang <[email protected]>
Signed-off-by: Jon Mason <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions