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| author | Anand Khoje <anand.a.khoje@oracle.com> | 2021-07-12 17:56:25 +0530 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2021-07-16 10:57:28 -0300 |
| commit | 21bfee9c0c7754408b1f311bffe304caf3e62250 (patch) | |
| tree | db088266ac160eb8e9f922b9e5ff2dbdc034669a /.cocciconfig | |
| parent | 36721a6d4cf2a39f411e3ac04d5771d1ffef9d23 (diff) | |
IB/core: Read subnet_prefix in ib_query_port via cache.
ib_query_port() calls device->ops.query_port() to get the port
attributes. The method of querying is device driver specific. The same
function calls device->ops.query_gid() to get the GID and extract the
subnet_prefix (gid_prefix).
The GID and subnet_prefix are stored in a cache. But they do not get
read from the cache if the device is an Infiniband device. The
following change takes advantage of the cached subnet_prefix.
Testing with RDBMS has shown a significant improvement in performance
with this change.
Link: https://lore.kernel.org/r/20210712122625.1147-4-anand.a.khoje@oracle.com
Signed-off-by: Anand Khoje <anand.a.khoje@oracle.com>
Signed-off-by: Haakon Bugge <haakon.bugge@oracle.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to '.cocciconfig')
0 files changed, 0 insertions, 0 deletions