[00/15] remove mbuf timestamp
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Message ID 20201029092751.3837177-1-thomas@monjalon.net
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  • remove mbuf timestamp
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Thomas Monjalon Oct. 29, 2020, 9:27 a.m. UTC 
The mbuf field timestamp was announced to be removed for three reasons:
  - a dynamic field already exist, used for Tx only
  - this field always used 8 bytes even if unneeded
  - this field is in the first half (cacheline) of mbuf

After this series the dynamic field timestamp is used for both Rx and Tx
with separate dynamic flags to distinguish when the value is meaningful
without resetting the field during forwarding.

As a consequence, 8 bytes can be re-allocated to dynamic fields,
and bonus...
the mempool pointer can be promoted to the first half of mbuf!

This mbuf layout change is important to allow adding more features
(consuming more dynamic fields) during the next year
and can bring some performance improvement.


Thomas Monjalon (15):
  eventdev: remove software Rx timestamp
  mbuf: add Rx timestamp dynamic flag
  ethdev: register mbuf field and flags for timestamp
  latency: switch timestamp to dynamic mbuf field
  net/ark: switch timestamp to dynamic mbuf field
  net/dpaa2: switch timestamp to dynamic mbuf field
  net/mlx5: fix dynamic mbuf offset lookup check
  net/mlx5: switch timestamp to dynamic mbuf field
  net/nfb: switch timestamp to dynamic mbuf field
  net/octeontx2: switch timestamp to dynamic mbuf field
  net/pcap: switch timestamp to dynamic mbuf field
  app/testpmd: switch timestamp to dynamic mbuf field
  examples/rxtx_callbacks: switch timestamp to dynamic field
  mbuf: remove deprecated timestamp field
  mbuf: move pool pointer in hotter first half

 app/test-pmd/config.c                         | 38 ----------
 app/test-pmd/util.c                           | 39 ++++++++++-
 app/test/test_mbuf.c                          |  1 -
 doc/guides/nics/mlx5.rst                      |  5 +-
 .../prog_guide/event_ethernet_rx_adapter.rst  |  6 +-
 doc/guides/rel_notes/deprecation.rst          |  6 --
 doc/guides/rel_notes/release_20_11.rst        |  4 ++
 drivers/net/ark/ark_ethdev.c                  | 23 ++++++
 drivers/net/ark/ark_ethdev_rx.c               | 10 ++-
 drivers/net/dpaa2/dpaa2_ethdev.c              | 20 ++++++
 drivers/net/dpaa2/dpaa2_ethdev.h              |  2 +
 drivers/net/dpaa2/dpaa2_rxtx.c                | 25 +++++--
 drivers/net/mlx5/mlx5_rxq.c                   | 36 ++++++++++
 drivers/net/mlx5/mlx5_rxtx.c                  |  8 +--
 drivers/net/mlx5/mlx5_rxtx.h                  | 19 +++++
 drivers/net/mlx5/mlx5_rxtx_vec_altivec.h      | 41 +++++------
 drivers/net/mlx5/mlx5_rxtx_vec_neon.h         | 43 ++++++------
 drivers/net/mlx5/mlx5_rxtx_vec_sse.h          | 35 +++++-----
 drivers/net/mlx5/mlx5_trigger.c               |  2 +-
 drivers/net/mlx5/mlx5_txq.c                   |  2 +-
 drivers/net/nfb/nfb_rx.c                      | 23 +++++-
 drivers/net/nfb/nfb_rx.h                      | 18 +++--
 drivers/net/octeontx2/otx2_ethdev.c           | 33 +++++++++
 drivers/net/octeontx2/otx2_rx.h               | 19 ++++-
 drivers/net/octeontx2/version.map             |  7 ++
 drivers/net/pcap/rte_eth_pcap.c               | 29 +++++++-
 examples/rxtx_callbacks/main.c                | 12 +++-
 lib/librte_ethdev/rte_ethdev.c                | 70 +++++++++++++++++++
 lib/librte_ethdev/rte_ethdev.h                | 13 +++-
 .../rte_event_eth_rx_adapter.c                | 11 ---
 .../rte_event_eth_rx_adapter.h                |  6 +-
 lib/librte_kni/rte_kni_common.h               |  3 +-
 lib/librte_latencystats/rte_latencystats.c    | 48 +++++++++++--
 lib/librte_mbuf/rte_mbuf.c                    |  2 -
 lib/librte_mbuf/rte_mbuf.h                    |  1 -
 lib/librte_mbuf/rte_mbuf_core.h               | 15 +---
 lib/librte_mbuf/rte_mbuf_dyn.h                | 11 +--
 37 files changed, 502 insertions(+), 184 deletions(-)