09/11/2017 10:21, Zhiyong Yang: > When running l3fwd-power to test virtio rxq interrupt using vfio > pci noiommu mode, startup fails. In the function virtio_read_caps, > the code if (flags & PCI_MSIX_ENABLE) intends to double check > if vfio msix is enabled or not. However, it is not enable at that > time. So use_msix is assigned to "0", not "1", which causes the > failure of configuring rxq intr in l3fwd-power. > This patch adds the function "vtpci_msix_detect" to detect the status > of msix when interrupt changes happen. > In the meanwhile, virtio_intr_enable/disable are introduced to wrap > rte_intr_enable/disable to enhance the ability to detect msix. > use_msix can indicate three different msix status by: > VIRTIO_MSIX_NONE (0) > VIRTIO_MSIX_DISABLED (1) > VIRTIO_MSIX_ENABLED (2) > > CC: [email protected] > CC: [email protected] > CC: [email protected] > CC: [email protected] > > Fixes: cb482cb3a305 ("net/virtio: fix MAC address read") > Signed-off-by: Zhiyong Yang <[email protected]> > Acked-by: Jianfeng Tan <[email protected]> > Acked-by: Maxime Coquelin <[email protected]>
Applied, thanks
