Hi all: This series intends to introduce Intel IFC VF NIC driver for Vhost Data Plane Acceleration(VDPA). Here comes two main parts, one is ifcvf_base layer, which handles hardware operations. The other is ifcvf_main layer handles VF initialization, configuration and removal, which depends on and complys to: virtio_mdev https://lkml.org/lkml/2019/11/7/650 vhost_mdev https://lkml.org/lkml/2019/11/7/62 This patchset passed netperf tests. This is RFC V3, plese help review. Changes from V2: removed some unnecessary code. using a struct ifcvf_lm_cfg to address hw->lm_cfg and operations on it. set CONFIG_S_FAILED when ifcvf_start_hw() fail. removed VIRTIO_NET_F_CTRL_VQ and VIRTIO_NET_F_STATUS replace ifcvf_net_config with virtio_net_config. minor changes Changes from V1: using le32_to_cpu() to convert PCI capabilities. some set /get operations will sync with the hardware, eg get_status and get_generation. remove feature bit VHOST_F_LOG_ALL, add VIRTIO_F_ORDERED_PLATFORM add get/set_config functions. split mdev type group into mdev_type_group_virtio and mdev_type_group_vhost add ifcvf_mdev_get_mdev_features() coding stype changes. Zhu Lingshan (2): This commit introduced ifcvf_base layer, which handles hardware operations and configurations. This commit introduced IFC operations for vdpa, which complys to virtio_mdev and vhost_mdev interfaces, handles IFC VF initialization, configuration and removal. drivers/vhost/ifcvf/ifcvf_base.c | 326 ++++++++++++++++++++++ drivers/vhost/ifcvf/ifcvf_base.h | 129 +++++++++ drivers/vhost/ifcvf/ifcvf_main.c | 579 +++++++++++++++++++++++++++++++++++++++ 3 files changed, 1034 insertions(+) create mode 100644 drivers/vhost/ifcvf/ifcvf_base.c create mode 100644 drivers/vhost/ifcvf/ifcvf_base.h create mode 100644 drivers/vhost/ifcvf/ifcvf_main.c -- 1.8.3.1
