Implement EF10 (SFN7xxx and SFN8xxx) native datapaths which may be chosen per device using PCI whitelist device arguments.
libefx-based datapath implementation is bound to API and structure imposed by the libefx. It has many indirect function calls to provide HW abstraction (bad for CPU pipeline) and uses many data structures: driver Rx/Tx queue, driver event queue, libefx Rx/Tx queue, libefx event queue, libefx NIC (bad for cache). Native datapath implementation is fully separated from control path to be able to use alternative control path if required (e.g. kernel-aware). Native datapaths show better performance than libefx-based. Andrew Rybchenko (13): net/sfc: callbacks should depend on EvQ usage net/sfc: emphasis that RSS hash flag is an Rx queue flag net/sfc: do not use Rx queue control state on datapath net/sfc: factor out libefx-based Rx datapath net/sfc: Rx scatter is a datapath-dependent feature net/sfc: implement EF10 native Rx datapath net/sfc: factory out libefx-based Tx datapath net/sfc: VLAN insertion is a datapath dependent feature net/sfc: TSO is a datapath dependent feature net/sfc: implement EF10 native Tx datapath net/sfc: multi-segment support as is Tx datapath features net/sfc: implement simple EF10 native Tx datapath net/sfc: support Rx packed stream EF10-specific datapath doc/guides/nics/sfc_efx.rst | 45 +++ drivers/net/sfc/Makefile | 4 + drivers/net/sfc/efsys.h | 2 +- drivers/net/sfc/sfc.h | 4 + drivers/net/sfc/sfc_dp.c | 89 +++++ drivers/net/sfc/sfc_dp.h | 91 +++++ drivers/net/sfc/sfc_dp_rx.h | 216 ++++++++++++ drivers/net/sfc/sfc_dp_tx.h | 177 ++++++++++ drivers/net/sfc/sfc_ef10_ps_rx.c | 659 ++++++++++++++++++++++++++++++++++++ drivers/net/sfc/sfc_ef10_rx.c | 713 +++++++++++++++++++++++++++++++++++++++ drivers/net/sfc/sfc_ef10_tx.c | 517 ++++++++++++++++++++++++++++ drivers/net/sfc/sfc_ethdev.c | 171 ++++++++-- drivers/net/sfc/sfc_ev.c | 272 +++++++++++++-- drivers/net/sfc/sfc_ev.h | 27 +- drivers/net/sfc/sfc_kvargs.c | 11 + drivers/net/sfc/sfc_kvargs.h | 19 ++ drivers/net/sfc/sfc_rx.c | 329 ++++++++++++++---- drivers/net/sfc/sfc_rx.h | 79 +++-- drivers/net/sfc/sfc_tso.c | 22 +- drivers/net/sfc/sfc_tx.c | 331 +++++++++++++----- drivers/net/sfc/sfc_tx.h | 95 ++++-- 21 files changed, 3604 insertions(+), 269 deletions(-) create mode 100644 drivers/net/sfc/sfc_dp.c create mode 100644 drivers/net/sfc/sfc_dp.h create mode 100644 drivers/net/sfc/sfc_dp_rx.h create mode 100644 drivers/net/sfc/sfc_dp_tx.h create mode 100644 drivers/net/sfc/sfc_ef10_ps_rx.c create mode 100644 drivers/net/sfc/sfc_ef10_rx.c create mode 100644 drivers/net/sfc/sfc_ef10_tx.c -- 1.8.2.3
