Introduces support for the FPE feature in the IGC driver. The patches aligns with the upstream FPE API: https://patchwork.kernel.org/project/netdevbpf/cover/20230220122343.1156614-1-vladimir.oltean@xxxxxxx/ https://patchwork.kernel.org/project/netdevbpf/cover/20230119122705.73054-1-vladimir.oltean@xxxxxxx/ It builds upon earlier work: https://patchwork.kernel.org/project/netdevbpf/cover/20220520011538.1098888-1-vinicius.gomes@xxxxxxxxx/ The patch series adds the following functionalities to the IGC driver: a) Configure FPE using `ethtool --set-mm`. b) Display FPE settings via `ethtool --show-mm`. c) View FPE statistics using `ethtool --include-statistics --show-mm'. e) Enable preemptible/express queue with `fp`: tc qdisc add ... root taprio \ fp E E P P Change Log: v1 -> v2: - Extract the stmmac verification logic into a common library (Vladimir) - igc to use common library for verification (Vladimir) - Fix syntax for kernel-doc to use "Return:" (Vladimir) - Use FIELD_GET instead of manual bit masking (Vladimir) - Don't assign 0 to statistics counter in igc_ethtool_get_mm_stats() (Vladimir) - Use pmac-enabled as a condition to allow MAC address value 0 (Vladimir) - Define macro register value in increasing value order (Vladimir) - Fix tx-min-frag-size handling for igc (Vladimir) - Handle link state changes with verification in igc (Vladimir) - Add static key for fast path code (Vladimir) - rx_min_frag_size get from constant (Vladimir) v1: https://patchwork.kernel.org/project/netdevbpf/cover/20241216064720.931522-1-faizal.abdul.rahim@xxxxxxxxxxxxxxx/ Faizal Rahim (8): igc: Rename xdp_get_tx_ring() for non-xdp usage igc: Optimize the TX packet buffer utilization igc: Set the RX packet buffer size for TSN mode igc: Add support for frame preemption verification igc: Add support to set tx-min-frag-size igc: Add support for preemptible traffic class in taprio igc: Add support to get MAC Merge data via ethtool igc: Add support to get frame preemption statistics via ethtool Vladimir Oltean (1): net: ethtool: mm: extract stmmac verification logic into common library drivers/net/ethernet/intel/igc/igc.h | 17 +- drivers/net/ethernet/intel/igc/igc_defines.h | 19 +- drivers/net/ethernet/intel/igc/igc_ethtool.c | 74 ++++++ drivers/net/ethernet/intel/igc/igc_main.c | 96 +++++++- drivers/net/ethernet/intel/igc/igc_regs.h | 16 ++ drivers/net/ethernet/intel/igc/igc_tsn.c | 210 +++++++++++++++- drivers/net/ethernet/intel/igc/igc_tsn.h | 34 +++ drivers/net/ethernet/stmicro/stmmac/stmmac.h | 16 +- .../ethernet/stmicro/stmmac/stmmac_ethtool.c | 41 +--- .../net/ethernet/stmicro/stmmac/stmmac_fpe.c | 174 +++----------- .../net/ethernet/stmicro/stmmac/stmmac_fpe.h | 5 - .../net/ethernet/stmicro/stmmac/stmmac_main.c | 8 +- include/linux/ethtool.h | 62 +++++ net/ethtool/mm.c | 225 +++++++++++++++++- 14 files changed, 780 insertions(+), 217 deletions(-) -- 2.34.1
