Hi Michael, please note that this series depends on mlx5 core device driver patches in mlx5-next branch in git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git.
git pull git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git mlx5-next They also depend Jason Wang's patches submitted a couple of weeks ago. I included them in this series. vdpa_sim: use the batching API vhost-vdpa: support batch updating The following series of patches provide VDPA support for Mellanox devices. The supported devices are ConnectX6 DX and newer. Currently, only a network driver is implemented; future patches will introduce a block device driver. iperf performance on a single queue is around 12 Gbps. Future patches will introduce multi queue support. The files are organized in such a way that code that can be used by different VDPA implementations will be placed in a common are resides in drivers/vdpa/mlx5/core. Only virtual functions are currently supported. Also, certain firmware capabilities must be set to enable the driver. Physical functions (PFs) are skipped by the driver. To make use of the VDPA net driver, one must load mlx5_vdpa. In such case, VFs will be operated by the VDPA driver. Although one can see a regular instance of a network driver on the VF, the VDPA driver takes precedence over the NIC driver, steering-wize. Currently, the device/interface infrastructure in mlx5_core is used to probe drivers. Future patches will introduce virtbus as a means to register devices and drivers and VDPA will be adapted to it. The mlx5 mode of operation required to support VDPA is switchdev mode. Once can use Linux or OVS bridge to take care of layer 2 switching. In order to provide virtio networking to a guest, an updated version of qemu is required. This version has been tested by the following quemu version: url: https://github.com/jasowang/qemu.git branch: vdpa Commit ID: 6f4e59b807db Eli Cohen (7): net/vdpa: Use struct for set/get vq state vhost: Fix documentation vdpa: Add means to communicate vq status on get_vq_state vdpa/mlx5: Add hardware descriptive header file vdpa/mlx5: Add support library for mlx5 VDPA implementation vdpa/mlx5: Add shared memory registration code vdpa/mlx5: Add VDPA driver for supported mlx5 devices Jason Wang (2): vhost-vdpa: support batch updating vdpa_sim: use the batching API Max Gurtovoy (1): vdpa: remove hard coded virtq num drivers/vdpa/Kconfig | 18 + drivers/vdpa/Makefile | 1 + drivers/vdpa/ifcvf/ifcvf_base.c | 4 +- drivers/vdpa/ifcvf/ifcvf_base.h | 4 +- drivers/vdpa/ifcvf/ifcvf_main.c | 13 +- drivers/vdpa/mlx5/Makefile | 4 + drivers/vdpa/mlx5/core/mlx5_vdpa.h | 89 ++ drivers/vdpa/mlx5/core/mlx5_vdpa_ifc.h | 168 ++ drivers/vdpa/mlx5/core/mr.c | 473 ++++++ drivers/vdpa/mlx5/core/resources.c | 284 ++++ drivers/vdpa/mlx5/net/main.c | 76 + drivers/vdpa/mlx5/net/mlx5_vnet.c | 1966 ++++++++++++++++++++++++ drivers/vdpa/mlx5/net/mlx5_vnet.h | 32 + drivers/vdpa/vdpa.c | 3 + drivers/vdpa/vdpa_sim/vdpa_sim.c | 35 +- drivers/vhost/iotlb.c | 4 +- drivers/vhost/vdpa.c | 43 +- include/linux/vdpa.h | 33 +- include/uapi/linux/vhost_types.h | 2 + 19 files changed, 3193 insertions(+), 59 deletions(-) create mode 100644 drivers/vdpa/mlx5/Makefile create mode 100644 drivers/vdpa/mlx5/core/mlx5_vdpa.h create mode 100644 drivers/vdpa/mlx5/core/mlx5_vdpa_ifc.h create mode 100644 drivers/vdpa/mlx5/core/mr.c create mode 100644 drivers/vdpa/mlx5/core/resources.c create mode 100644 drivers/vdpa/mlx5/net/main.c create mode 100644 drivers/vdpa/mlx5/net/mlx5_vnet.c create mode 100644 drivers/vdpa/mlx5/net/mlx5_vnet.h -- 2.27.0
