[v3,00/11] sched: feature enhancements

Message ID 20190711102659.59001-1-jasvinder.singh@intel.com
Headers show
Series
  • sched: feature enhancements
Related show

Message

Jasvinder Singh July 11, 2019, 10:26 a.m.
This patchset refactors the dpdk qos sched library to allow flexibile
configuration of the pipe traffic classes and queue sizes.

Currently, each pipe has 16 queues hardwired into 4 TCs scheduled with
strict priority, and each TC has exactly with 4 queues that are
scheduled with Weighted Fair Queuing (WFQ).

Instead of hardwiring queues to traffic class within the specific pipe,
the new implementation allows more flexible/configurable split of pipe
queues between strict priority (SP) and best-effort (BE) traffic classes
along with the support of more number of traffic classes i.e. max 16.
   
All the high priority TCs (TC1, TC2, ...) have exactly 1 queue, while
the lowest priority BE TC, has 1, 4 or 8 queues. This is justified by
the fact that all the high priority TCs are fully provisioned (small to
medium traffic rates), while most of the traffic fits into the BE class,
which is typically oversubscribed.

Furthermore, this change allows to use less than 16 queues per pipe when
not all the 16 queues are needed. Therefore, no memory will be allocated
to the queues that are not needed.

v3:
- remove code related to subport level configuration of the pipe 
- remove tc oversubscription flag from struct rte_sched_pipe_params
- replace RTE_SCHED_PIPE_PROFILES_PER_PORT with port param field

v2:
- fix bug in subport parameters check
- remove redundant RTE_SCHED_SUBPORT_PER_PORT macro
- fix bug in grinder_scheduler function
- improve doxygen comments 
- add error log information

Jasvinder Singh (11):
  sched: remove wrr from strict priority tc queues
  sched: add config flexibility to tc queue sizes
  sched: add max pipe profiles config in run time
  sched: rename tc3 params to best-effort tc
  sched: improve error log messages
  sched: improve doxygen comments
  net/softnic: add config flexibility to softnic tm
  test_sched: modify tests for config flexibility
  examples/ip_pipeline: add config flexibility to tm function
  examples/qos_sched: add tc and queue config flexibility
  sched: remove redundant macros

 app/test/test_sched.c                         |  12 +-
 doc/guides/rel_notes/release_19_08.rst        |  10 +-
 drivers/net/softnic/rte_eth_softnic.c         | 131 +++
 drivers/net/softnic/rte_eth_softnic_cli.c     | 433 ++++++++-
 .../net/softnic/rte_eth_softnic_internals.h   |   8 +-
 drivers/net/softnic/rte_eth_softnic_tm.c      |  64 +-
 examples/ip_pipeline/cli.c                    |  45 +-
 examples/ip_pipeline/tmgr.c                   |   2 +-
 examples/ip_pipeline/tmgr.h                   |   4 +-
 examples/qos_sched/app_thread.c               |   9 +-
 examples/qos_sched/cfg_file.c                 | 119 ++-
 examples/qos_sched/init.c                     |  65 +-
 examples/qos_sched/main.h                     |   4 +
 examples/qos_sched/profile.cfg                |  66 +-
 examples/qos_sched/profile_ov.cfg             |  54 +-
 examples/qos_sched/stats.c                    | 483 +++++-----
 lib/librte_pipeline/rte_table_action.c        |   1 -
 lib/librte_pipeline/rte_table_action.h        |   4 +-
 lib/librte_sched/Makefile                     |   2 +-
 lib/librte_sched/meson.build                  |   2 +-
 lib/librte_sched/rte_sched.c                  | 842 +++++++++++-------
 lib/librte_sched/rte_sched.h                  | 182 ++--
 22 files changed, 1786 insertions(+), 756 deletions(-)