On Tue, Aug 04, 2020 at 07:20:36PM +0300, Eli Cohen wrote: > 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. Thanks! OK so what's the plan for merging this? Do patches at least build well enough that I can push them upstream? Or do they have to go on top of the mellanox tree? > git pull git://git.kernel.org/pub/scm/linux/kernel/git/mellanox/linux.git mlx5-next > > They also depend Jason Wang's patches: https://lkml.org/lkml/2020/7/1/301 The ones you included, right? > Jason, I had to resolve some conflicts so I would appreciate of you can verify > that it is ok. > > 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 > > > V2->V3 > Fix makefile to use include path relative to the root of the kernel > > V3-V4 > Rebase Jason's patches on linux-next branch > Fix krobot error on mips arch > Make use of the free callback to destroy resoruces on unload > Use VIRTIO_F_ACCESS_PLATFORM instead of legacy VIRTIO_F_IOMMU_PLATFORM > Add empty implementations for get_vq_notification() and get_vq_irq() > > > Eli Cohen (6): > net/vdpa: Use struct for set/get vq state > vdpa: Modify get_vq_state() to return error code > 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 (5): > vhost-vdpa: refine ioctl pre-processing > vhost: generialize backend features setting/getting > vhost-vdpa: support get/set backend features > vhost-vdpa: support IOTLB batching hints > vdpasim: support batch updating > > Max Gurtovoy (1): > vdpa: remove hard coded virtq num > > drivers/vdpa/Kconfig | 19 + > 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 | 91 ++ > drivers/vdpa/mlx5/core/mlx5_vdpa_ifc.h | 168 ++ > drivers/vdpa/mlx5/core/mr.c | 484 ++++++ > drivers/vdpa/mlx5/core/resources.c | 284 ++++ > drivers/vdpa/mlx5/net/main.c | 76 + > drivers/vdpa/mlx5/net/mlx5_vnet.c | 1965 ++++++++++++++++++++++++ > drivers/vdpa/mlx5/net/mlx5_vnet.h | 24 + > drivers/vdpa/vdpa.c | 3 + > drivers/vdpa/vdpa_sim/vdpa_sim.c | 53 +- > drivers/vhost/net.c | 18 +- > drivers/vhost/vdpa.c | 76 +- > drivers/vhost/vhost.c | 15 + > drivers/vhost/vhost.h | 2 + > include/linux/vdpa.h | 24 +- > include/uapi/linux/vhost.h | 2 + > include/uapi/linux/vhost_types.h | 11 + > 22 files changed, 3284 insertions(+), 57 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 > > -- > 2.26.0 _______________________________________________ Virtualization mailing list Virtualization@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/virtualization
