[PATCH 00/11] net/mlx5: flow insertion performance improvements
Dariusz Sosnowski
dsosnowski at nvidia.com
Wed Feb 28 18:00:35 CET 2024
Goal of this patchset is to improve the throughput of flow insertion
and deletion in mlx5 PMD when HW Steering flow engine is used.
- Patch 1 - Use preallocated per-queue, per-actions template buffer
for storing translated flow actions, instead of allocating and
filling it on demand, on each flow operation.
- Patches 2-4 - Make resource index allocation optional. This allocation
will be skipped when it is not required by the created template table.
- Patches 5-7 - Reduce memory footprint of the internal flow queue.
- Patch 8 - Remove indirection between flow job and flow itself,
by using flow as an operation container.
- Patches 9-10 - Reduce memory footpring of flow struct by moving
rarely used flow fields outside of the main flow struct.
These fields will accesses only when needed.
Also remove unneeded `zmalloc` usage.
- Patch 11 - Remove unneeded device status check in flow create.
In general all of these changes result in the following improvements
(all numbers are averaged Kflows/sec):
| | Insertion) | +% | Deletion | +% |
|--------------|:----------:|:------:|:--------:|:-----:|
| baseline | 6338.7 | | 9739.6 | |
| improvements | 6978.8 | +10.1% | 10432.4 | +7.1% |
The basic benchmark was run on ConnectX-6 Dx (22.40.1000),
on the system with Intel Xeon Platinum 8380 CPU.
Bing Zhao (2):
net/mlx5: skip the unneeded resource index allocation
net/mlx5: remove unneeded device status checking
Dariusz Sosnowski (7):
net/mlx5: allocate local DR rule action buffers
net/mlx5: remove action params from job
net/mlx5: remove flow pattern from job
net/mlx5: remove updated flow from job
net/mlx5: use flow as operation container
net/mlx5: move rarely used flow fields outside
net/mlx5: reuse flow fields
Erez Shitrit (2):
net/mlx5/hws: add check for matcher rule update support
net/mlx5/hws: add check if matcher contains complex rules
drivers/net/mlx5/hws/mlx5dr.h | 16 +
drivers/net/mlx5/hws/mlx5dr_action.c | 6 +
drivers/net/mlx5/hws/mlx5dr_action.h | 2 +
drivers/net/mlx5/hws/mlx5dr_matcher.c | 29 +
drivers/net/mlx5/mlx5.h | 29 +-
drivers/net/mlx5/mlx5_flow.h | 128 ++++-
drivers/net/mlx5/mlx5_flow_hw.c | 794 ++++++++++++++++----------
7 files changed, 666 insertions(+), 338 deletions(-)
--
2.39.2
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