netdev - [PATCH v2 00/12] virtio pci support VIRTIO_F_RING

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Date:   Thu, 20 Jan 2022 14:42:51 +0800
From:   Xuan Zhuo <xuanzhuo@...ux.alibaba.com>
To:     virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Cc:     "Michael S. Tsirkin" <mst@...hat.com>,
        Jason Wang <jasowang@...hat.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Jesper Dangaard Brouer <hawk@...nel.org>,
        John Fastabend <john.fastabend@...il.com>, bpf@...r.kernel.org
Subject: [PATCH v2 00/12] virtio pci support VIRTIO_F_RING_RESET

The virtio spec already supports the virtio queue reset function. This patch set
is to add this function to the kernel. The relevant virtio spec information is
here:

    https://github.com/oasis-tcs/virtio-spec/issues/124

Also regarding MMIO support for queue reset, I plan to support it after this
patch is passed.

#9-#12 is the disable/enable function of rx/tx pair implemented by virtio-net
using the new helper. This function is not currently referenced by other
functions. It is more to show the usage of the new helper, I not sure if they
are going to be merged together.

Please review. Thanks.

Xuan Zhuo (12):
  virtio: pci: struct virtio_pci_common_cfg add queue_notify_data
  virtio: queue_reset: add VIRTIO_F_RING_RESET
  virtio: queue_reset: struct virtio_config_ops add callbacks for
    queue_reset
  virtio: queue_reset: pci: update struct virtio_pci_common_cfg and
    option functions
  virito: queue_reset: pci: move the per queue irq logic from vp_del_vqs
    to vp_del_vq
  virtio: queue_reset: pci: add independent function to enable msix vq
  virtio: queue_reset: pci: support VIRTIO_F_RING_RESET
  virtio: queue_reset: add helper
  virtio_net: virtnet_tx_timeout() fix style
  virtio_net: virtnet_tx_timeout() stop ref sq->vq
  virtio_net: split free_unused_bufs()
  virtio-net: support pair disable/enable

 drivers/net/virtio_net.c               | 200 ++++++++++++++++++++++---
 drivers/virtio/virtio_pci_common.c     | 135 +++++++++++++----
 drivers/virtio/virtio_pci_common.h     |   4 +
 drivers/virtio/virtio_pci_modern.c     |  73 +++++++++
 drivers/virtio/virtio_pci_modern_dev.c |  28 ++++
 include/linux/virtio_config.h          |  63 ++++++++
 include/linux/virtio_pci_modern.h      |   2 +
 include/uapi/linux/virtio_config.h     |   7 +-
 include/uapi/linux/virtio_pci.h        |   2 +
 9 files changed, 460 insertions(+), 54 deletions(-)

--
2.31.0