linux-kernel - [PATCH V3 00/19] vDPA driver for virtio-pci device

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Date:   Mon,  4 Jan 2021 14:54:44 +0800
From:   Jason Wang <jasowang@...hat.com>
To:     mst@...hat.com, virtualization@...ts.linux-foundation.org,
        linux-kernel@...r.kernel.org
Cc:     shahafs@...lanox.com, lulu@...hat.com, sgarzare@...hat.com,
        rdunlap@...radead.org, Jason Wang <jasowang@...hat.com>
Subject: [PATCH V3 00/19] vDPA driver for virtio-pci device

Hi all:

This series tries to implement a vDPA driver for virtio-pci device
which will bridge between vDPA bus and virtio-pci device.

This could be used for future feature prototyping and testing.

Please review

Changes since V2:

- tweak config prompt
- switch from 'cb' to 'config_cb' for vp_vdpa config interrupt
- use a macro for vp_vdpa msix name length

Changes since V1:

- don't try to use devres for virtio-pci core
- tweak the commit log
- split the patches furtherly to ease the reviewing

Changes since RFC:

- Split common codes from virito-pci and share it with vDPA driver
- Use dynamic id in order to be less confusing with virtio-pci driver
- No feature whitelist, supporting any features (mq, config etc)

Thanks

Jason Wang (19):
  virtio-pci: do not access iomem via struct virtio_pci_device directly
  virtio-pci: split out modern device
  virtio-pci-modern: factor out modern device initialization logic
  virtio-pci-modern: introduce vp_modern_remove()
  virtio-pci-modern: introduce helper to set config vector
  virtio-pci-modern: introduce helpers for setting and getting status
  virtio-pci-modern: introduce helpers for setting and getting features
  virtio-pci-modern: introduce vp_modern_generation()
  virtio-pci-modern: introduce vp_modern_set_queue_vector()
  virtio-pci-modern: introduce vp_modern_queue_address()
  virtio-pci-modern: introduce helper to set/get queue_enable
  virtio-pci-modern: introduce helper for setting/geting queue size
  virtio-pci-modern: introduce helper for getting queue nums
  virtio-pci-modern: introduce helper to get notification offset
  virito-pci-modern: rename map_capability() to
    vp_modern_map_capability()
  virtio-pci: introduce modern device module
  vdpa: set the virtqueue num during register
  virtio_vdpa: don't warn when fail to disable vq
  vdpa: introduce virtio pci driver

 drivers/vdpa/Kconfig                   |   6 +
 drivers/vdpa/Makefile                  |   1 +
 drivers/vdpa/ifcvf/ifcvf_main.c        |   5 +-
 drivers/vdpa/mlx5/net/mlx5_vnet.c      |   5 +-
 drivers/vdpa/vdpa.c                    |   8 +-
 drivers/vdpa/vdpa_sim/vdpa_sim.c       |   4 +-
 drivers/vdpa/virtio_pci/Makefile       |   2 +
 drivers/vdpa/virtio_pci/vp_vdpa.c      | 456 +++++++++++++++++++
 drivers/virtio/Kconfig                 |  10 +-
 drivers/virtio/Makefile                |   1 +
 drivers/virtio/virtio_pci_common.h     |  22 +-
 drivers/virtio/virtio_pci_modern.c     | 506 +++------------------
 drivers/virtio/virtio_pci_modern_dev.c | 599 +++++++++++++++++++++++++
 drivers/virtio/virtio_vdpa.c           |   3 +-
 include/linux/vdpa.h                   |   7 +-
 include/linux/virtio_pci_modern.h      | 111 +++++
 16 files changed, 1274 insertions(+), 472 deletions(-)
 create mode 100644 drivers/vdpa/virtio_pci/Makefile
 create mode 100644 drivers/vdpa/virtio_pci/vp_vdpa.c
 create mode 100644 drivers/virtio/virtio_pci_modern_dev.c
 create mode 100644 include/linux/virtio_pci_modern.h

-- 
2.25.1