[PATCH net-next 0/5] xstats for tc-taprio

[Vladimir Oltean]

As a result of this discussion:
https://lore.kernel.org/intel-wired-lan/20230411055543.24177-1-muhammad.husaini.zulkifli@xxxxxxxxx/

it became apparent that tc-taprio should make an effort to standardize
statistics counters related to the 802.1Qbv scheduling as implemented
by the NIC. I'm presenting here one counter suggested by the standard,
and one counter defined by the NXP ENETC controller from LS1028A. Both
counters are reported globally and per traffic class - drivers get
different callbacks for reporting both of these, and get to choose what
to report in both cases.

The iproute2 counterpart is available here for testing:
https://github.com/vladimiroltean/iproute2/commits/taprio-xstats

Vladimir Oltean (5):
  net/sched: taprio: don't overwrite "sch" variable in
    taprio_dump_class_stats()
  net/sched: taprio: replace tc_taprio_qopt_offload :: enable with a
    "cmd" enum
  net/sched: taprio: add netlink reporting for offload statistics
    counters
  net: enetc: refactor enetc_setup_tc_taprio() to have a switch/case for
    cmd
  net: enetc: report statistics counters for taprio

 drivers/net/dsa/hirschmann/hellcreek.c        |  14 ++-
 drivers/net/dsa/ocelot/felix_vsc9959.c        |   4 +-
 drivers/net/dsa/sja1105/sja1105_tas.c         |   7 +-
 .../net/ethernet/engleder/tsnep_selftests.c   |  12 +-
 drivers/net/ethernet/engleder/tsnep_tc.c      |   4 +-
 drivers/net/ethernet/freescale/enetc/enetc.c  |   3 +-
 drivers/net/ethernet/freescale/enetc/enetc.h  |   1 +
 .../net/ethernet/freescale/enetc/enetc_qos.c  | 110 ++++++++++++++----
 drivers/net/ethernet/intel/igc/igc_main.c     |  13 ++-
 .../ethernet/microchip/lan966x/lan966x_tc.c   |  10 +-
 .../net/ethernet/stmicro/stmmac/stmmac_tc.c   |   7 +-
 drivers/net/ethernet/ti/am65-cpsw-qos.c       |  11 +-
 include/net/pkt_sched.h                       |  56 +++++++--
 include/uapi/linux/pkt_sched.h                |  10 ++
 net/sched/sch_taprio.c                        |  90 ++++++++++++--
 15 files changed, 286 insertions(+), 66 deletions(-)

-- 
2.34.1