Add XDP support (w/o XSk for now) to the idpf driver using the libeth_xdp sublib. All possible verdicts, .ndo_xdp_xmit(), multi-buffer etc. are here. In general, nothing outstanding comparing to ice, except performance -- let's say, up to 2x for .ndo_xdp_xmit() on certain platforms and scenarios. idpf doesn't support VLAN Rx offload, so only the hash hint is available for now. Patches 1-7 are prereqs, without which XDP would either not work at all or work slower/worse/... Alexander Lobakin (9): xdp, libeth: make the xdp_init_buff() micro-optimization generic idpf: fix Rx descriptor ready check barrier in splitq idpf: use a saner limit for default number of queues to allocate idpf: link NAPIs to queues idpf: add support for nointerrupt queues idpf: use generic functions to build xdp_buff and skb idpf: add support for XDP on Rx idpf: add support for .ndo_xdp_xmit() idpf: add XDP RSS hash hint Michal Kubiak (4): idpf: add 4-byte completion descriptor definition idpf: remove SW marker handling from NAPI idpf: prepare structures to support XDP idpf: implement XDP_SETUP_PROG in ndo_bpf for splitq drivers/net/ethernet/intel/idpf/Kconfig | 2 +- drivers/net/ethernet/intel/idpf/Makefile | 2 + drivers/net/ethernet/intel/idpf/idpf.h | 31 +- .../net/ethernet/intel/idpf/idpf_lan_txrx.h | 6 +- drivers/net/ethernet/intel/idpf/idpf_txrx.h | 140 ++++-- .../net/ethernet/intel/idpf/idpf_virtchnl.h | 1 - drivers/net/ethernet/intel/idpf/xdp.h | 172 +++++++ include/net/libeth/xdp.h | 11 +- include/net/xdp.h | 28 +- drivers/net/ethernet/intel/idpf/idpf_dev.c | 11 +- drivers/net/ethernet/intel/idpf/idpf_lib.c | 67 ++- drivers/net/ethernet/intel/idpf/idpf_main.c | 1 + .../ethernet/intel/idpf/idpf_singleq_txrx.c | 110 ++--- drivers/net/ethernet/intel/idpf/idpf_txrx.c | 424 ++++++++-------- drivers/net/ethernet/intel/idpf/idpf_vf_dev.c | 11 +- .../net/ethernet/intel/idpf/idpf_virtchnl.c | 173 ++++--- drivers/net/ethernet/intel/idpf/xdp.c | 454 ++++++++++++++++++ 17 files changed, 1217 insertions(+), 427 deletions(-) create mode 100644 drivers/net/ethernet/intel/idpf/xdp.h create mode 100644 drivers/net/ethernet/intel/idpf/xdp.c ---
