On Wed, Jan 26, 2022 at 3:35 PM Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx> wrote: > > ================================================================================ > 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. > > #14-#17 is the disable/enable function of rx/tx pair implemented by virtio-net > using the new helper. One thing that came to mind is the steering. E.g if we disable an RX, should we stop steering packets to that queue? Thanks > 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. > > v3: > 1. keep vq, irq unreleased > > Xuan Zhuo (17): > 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: add helper > vritio_ring: queue_reset: extract the release function of the vq ring > virtio_ring: queue_reset: split: add __vring_init_virtqueue() > virtio_ring: queue_reset: split: support enable reset queue > virtio_ring: queue_reset: packed: support enable reset queue > virtio_ring: queue_reset: add vring_reset_virtqueue() > virtio_pci: queue_reset: update struct virtio_pci_common_cfg and > option functions > virtio_pci: queue_reset: release vq by vp_dev->vqs > virtio_pci: queue_reset: setup_vq use vring_setup_virtqueue() > virtio_pci: queue_reset: support VIRTIO_F_RING_RESET > 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 | 220 ++++++++++++++++++++++--- > drivers/virtio/virtio_pci_common.c | 62 ++++--- > drivers/virtio/virtio_pci_common.h | 11 +- > drivers/virtio/virtio_pci_legacy.c | 5 +- > drivers/virtio/virtio_pci_modern.c | 120 +++++++++++++- > drivers/virtio/virtio_pci_modern_dev.c | 28 ++++ > drivers/virtio/virtio_ring.c | 144 +++++++++++----- > include/linux/virtio.h | 1 + > include/linux/virtio_config.h | 75 ++++++++- > include/linux/virtio_pci_modern.h | 2 + > include/linux/virtio_ring.h | 42 +++-- > include/uapi/linux/virtio_config.h | 7 +- > include/uapi/linux/virtio_pci.h | 2 + > 13 files changed, 618 insertions(+), 101 deletions(-) > > -- > 2.31.0 >
