[v8,00/13] support the flow-based traffic sampling
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Message ID 1601187539-112694-1-git-send-email-jiaweiw@nvidia.com
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  • support the flow-based traffic sampling
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Jiawei(Jonny) Wang Sept. 27, 2020, 6:18 a.m. UTC
This patch set implement the flow sampling for mlx5 driver.

The solution is introduced a new rte_flow action that will sample the incoming traffic and send a duplicated traffic with the specified ratio to the application, while the original packet will continue to the target destination.

If the sample ratio value be set to 1, means that the packets would be completely mirrored. The sample packet can be assigned with different set of actions from the original packet.

MLX5 PMD driver will be responsible for validate and translate the sample action while creating a flow.

v8:
* Rebase patches based on the latest code.
* Update the offloads dependencies document for sample flow.
* Update sample flow limitation document.

v7:
* Removed change in [PATCH 12/12] net/mlx5: support the native port id actions for mirroring, should use sample action.
* Update the PMD code to match the new rdma-core API for mirroring.
* Optimize the sample flow split routine.
* Update code changes and commit log based on the review.
* Add E-Switch sample flow limitation document.

v6:
* Update the function that restore vport through metadata register c0 for FDB sampler.
* Add multiple destination support.
* Support the remote mirroring with different encapsulation header.
* Fix coverity error.

v5:
* Add the release note.
* Remove Make changes since it's deprecated.

v4:
* Rebase.
* Fix the coding style issue.

v3:
* Remove 'const' of ratio field.
* Update description and commit messages.

v2:
* Rebase patches based on the latest code.
* Update rte_flow and release documents.
* Fix the compile error.
* Removed unnecessary change in [PATCH 7/8] net/mlx5: update the metadata register c0 support since FDB will use 5-tuple to do match.
* Update changes based on the comments.



Jiawei Wang (13):
  ethdev: introduce sample action for rte flow
  common/mlx5: glue for sample action
  common/mlx5: query sampler object capability via DevX
  net/mlx5: add the validate sample action
  net/mlx5: split sample flow into two sub flows
  net/mlx5: update translate function for sample action
  app/testpmd: add testpmd command for sample action
  common/mlx5: add glue function for mirroring
  net/mlx5: update validation for mirroring flow
  net/mlx5: update translate function for mirror
  app/testpmd: add port and encap support for sample action
  doc: add the sample flow limitation description
  doc: update offload dependencies document

 app/test-pmd/cmdline_flow.c            |  301 ++++++++-
 doc/guides/nics/mlx5.rst               |   11 +
 doc/guides/prog_guide/rte_flow.rst     |   25 +
 doc/guides/rel_notes/release_20_11.rst |    6 +
 drivers/common/mlx5/linux/meson.build  |    4 +
 drivers/common/mlx5/linux/mlx5_glue.c  |   37 ++
 drivers/common/mlx5/linux/mlx5_glue.h  |   35 +
 drivers/common/mlx5/mlx5_devx_cmds.c   |   27 +
 drivers/common/mlx5/mlx5_devx_cmds.h   |    1 +
 drivers/common/mlx5/mlx5_prm.h         |   61 ++
 drivers/net/mlx5/linux/mlx5_os.c       |   14 +
 drivers/net/mlx5/mlx5.c                |   22 +
 drivers/net/mlx5/mlx5.h                |    6 +
 drivers/net/mlx5/mlx5_flow.c           |  400 +++++++++++-
 drivers/net/mlx5/mlx5_flow.h           |   61 ++
 drivers/net/mlx5/mlx5_flow_dv.c        | 1126 +++++++++++++++++++++++++++++++-
 lib/librte_ethdev/rte_flow.c           |    1 +
 lib/librte_ethdev/rte_flow.h           |   30 +
 18 files changed, 2123 insertions(+), 45 deletions(-)