Re: [PATCH v7 0/9] vDPA driver for Alibaba ENI

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On Fri, Oct 29, 2021 at 05:14:41PM +0800, Wu Zongyong wrote:
> This series implements the vDPA driver for Alibaba ENI (Elastic Network
> Interface) which is built based on virtio-pci 0.9.5 specification.

In the future pls do not send v7 as a reply to v6.
Start a new thread with each version.

> Changes since V6:
> - set default min vq size to 1 intead of 0
> - enable eni vdpa driver only on X86 hosts
> - fix some typos
> 
> Changes since V5:
> - remove unused codes
> 
> Changes since V4:
> - check return values of get_vq_num_{max,min} when probing devices
> - disable the driver on BE host via Kconfig
> - add missing commit message
> 
> Changes since V3:
> - validate VIRTIO_NET_F_MRG_RXBUF when negotiate features
> - present F_ORDER_PLATFORM in get_features
> - remove endian check since ENI always use litter endian
> 
> Changes since V2:
> - add new attribute VDPA_ATTR_DEV_MIN_VQ_SIZE instead
>   VDPA_ATTR_DEV_F_VERSION_1 to guide users to choose correct virtqueue
>   size as suggested by Jason Wang
> - present ACCESS_PLATFORM in get_features callback as suggested by Jason
>   Wang
> - disable this driver on Big Endian host as suggested by Jason Wang
> - fix a typo
> 
> Changes since V1:
> - add new vdpa attribute VDPA_ATTR_DEV_F_VERSION_1 to indicate whether
>   the vdpa device is legacy
> - implement dedicated driver for Alibaba ENI instead a legacy virtio-pci
>   driver as suggested by Jason Wang
> - some bugs fixed
> 
> Wu Zongyong (9):
>   virtio-pci: introduce legacy device module
>   vdpa: fix typo
>   vp_vdpa: add vq irq offloading support
>   vdpa: add new callback get_vq_num_min in vdpa_config_ops
>   vdpa: min vq num of vdpa device cannot be greater than max vq num
>   virtio_vdpa: setup correct vq size with callbacks get_vq_num_{max,min}
>   vdpa: add new attribute VDPA_ATTR_DEV_MIN_VQ_SIZE
>   eni_vdpa: add vDPA driver for Alibaba ENI
>   eni_vdpa: alibaba: fix Kconfig typo
> 
>  drivers/vdpa/Kconfig                   |   8 +
>  drivers/vdpa/Makefile                  |   1 +
>  drivers/vdpa/alibaba/Makefile          |   3 +
>  drivers/vdpa/alibaba/eni_vdpa.c        | 553 +++++++++++++++++++++++++
>  drivers/vdpa/vdpa.c                    |  13 +
>  drivers/vdpa/virtio_pci/vp_vdpa.c      |  12 +
>  drivers/virtio/Kconfig                 |  10 +
>  drivers/virtio/Makefile                |   1 +
>  drivers/virtio/virtio_pci_common.c     |  10 +-
>  drivers/virtio/virtio_pci_common.h     |   9 +-
>  drivers/virtio/virtio_pci_legacy.c     | 101 ++---
>  drivers/virtio/virtio_pci_legacy_dev.c | 220 ++++++++++
>  drivers/virtio/virtio_vdpa.c           |  16 +-
>  include/linux/vdpa.h                   |   6 +-
>  include/linux/virtio_pci_legacy.h      |  42 ++
>  include/uapi/linux/vdpa.h              |   1 +
>  16 files changed, 917 insertions(+), 89 deletions(-)
>  create mode 100644 drivers/vdpa/alibaba/Makefile
>  create mode 100644 drivers/vdpa/alibaba/eni_vdpa.c
>  create mode 100644 drivers/virtio/virtio_pci_legacy_dev.c
>  create mode 100644 include/linux/virtio_pci_legacy.h
> 
> -- 
> 2.31.1

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