On Mon, Jan 10, 2022 at 10:37 AM Jason Wang <[email protected]> wrote:
> On Mon, Jan 10, 2022 at 9:37 AM Cindy Lu <[email protected]> wrote: > > > > > > > > > > On Mon, Jan 10, 2022 at 1:56 AM Michael S. Tsirkin <[email protected]> > wrote: > >> > >> On Fri, Nov 05, 2021 at 12:48:17AM +0800, Cindy Lu wrote: > >> > these patches add the support for configure interrupt > >> > > >> > These codes are all tested in vp-vdpa (support configure interrupt) > >> > vdpa_sim (not support configure interrupt), virtio tap device > >> > > >> > test in virtio-pci bus and virtio-mmio bus > >> > > >> > Change in v2: > >> > Add support for virtio-mmio bus > >> > active the notifier while the backend support configure interrupt > >> > misc fixes from v1 > >> > > >> > Change in v3 > >> > fix the coding style problems > >> > > >> > Change in v4 > >> > misc fixes from v3 > >> > merge the set_config_notifier to set_guest_notifier > >> > when vdpa start, check the feature by VIRTIO_NET_F_STATUS > >> > > >> > Change in v5 > >> > misc fixes from v4 > >> > split the code to introduce configure interrupt type and the callback > function > >> > will init the configure interrupt in all virtio-pci and virtio-mmio > bus, but will > >> > only active while using vhost-vdpa driver > >> > > >> > Change in v6 > >> > misc fixes from v5 > >> > decouple vq from interrupt setting and misc process > >> > fix the bug in virtio_net_handle_rx > >> > use -1 as the queue number to identify if the interrupt is configure > interrupt > >> > > >> > Change in v7 > >> > misc fixes from v6 > >> > decouple vq from interrupt setting and misc process > >> > decouple vq from vector use/release process > >> > decouple vq from set notifier fd handler process > >> > move config_notifier and masked_config_notifier to VirtIODevice > >> > fix the bug in virtio_net_handle_rx, add more information > >> > add VIRTIO_CONFIG_IRQ_IDX as the queue number to identify if the > interrupt is configure interrupt > >> > > >> > Change in v8 > >> > misc fixes from v7 > >> > decouple vq from interrupt setting and misc process > >> > decouple vq from vector use/release process > >> > decouple vq from set notifier fd handler process > >> > move the vhost configure interrupt to vhost_net > >> > > >> > Change in v9 > >> > misc fixes from v8 > >> > address the comments from v8 > >> > > >> > Change in v10 > >> > fix the hang issue in qtest > >> > address the comments from v9 > >> > > >> > Cindy Lu (10): > >> > virtio: introduce macro IRTIO_CONFIG_IRQ_IDX > >> > virtio-pci: decouple notifier from interrupt process > >> > virtio-pci: decouple the single vector from the interrupt process > >> > vhost: introduce new VhostOps vhost_set_config_call > >> > vhost-vdpa: add support for config interrupt > >> > virtio: add support for configure interrupt > >> > vhost: add support for configure interrupt > >> > virtio-net: add support for configure interrupt > >> > virtio-mmio: add support for configure interrupt > >> > virtio-pci: add support for configure interrupt > >> > > >> > hw/display/vhost-user-gpu.c | 6 + > >> > hw/net/vhost_net.c | 9 + > >> > hw/net/virtio-net.c | 10 +- > >> > hw/virtio/trace-events | 1 + > >> > hw/virtio/vhost-user-fs.c | 6 + > >> > hw/virtio/vhost-vdpa.c | 7 + > >> > hw/virtio/vhost-vsock-common.c | 6 + > >> > hw/virtio/vhost.c | 76 +++++++++ > >> > hw/virtio/virtio-crypto.c | 6 + > >> > hw/virtio/virtio-mmio.c | 27 +++ > >> > hw/virtio/virtio-pci.c | 269 > +++++++++++++++++++++--------- > >> > hw/virtio/virtio-pci.h | 4 +- > >> > hw/virtio/virtio.c | 29 ++++ > >> > include/hw/virtio/vhost-backend.h | 3 + > >> > include/hw/virtio/vhost.h | 4 + > >> > include/hw/virtio/virtio.h | 7 + > >> > include/net/vhost_net.h | 2 + > >> > 17 files changed, 389 insertions(+), 83 deletions(-) > >> > >> So I just realized something. The spec says: > >> > >> The device MUST set the Device Configuration Interrupt bit > >> in \field{ISR status} before sending a device configuration > >> change notification to the driver. > >> > >> and I don't see how these patches achieve this: it requires > >> that config interrupts go through userspace. > >> > >> Revert, and think more about it? Or did I miss something? > >> > > Thanks, Micheal, I'm ok to revert these patchs and there are also > several bugs I need to fix. > > I will post a new version soon > > Please test with vectors=0 for the new version to make it work as expected. > > Thanks > > Sure, I will, Thanka Jason > >> > >> > >> > -- > >> > 2.21.3 > >> > >
