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path: root/include/linux/virtio_pci_modern.h
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* virtio-pci library: introduce vp_modern_get_driver_features()Jason Wang2021-07-081-0/+1
| | | | | | | | | | This patch introduce a helper to get driver/guest features from the device. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210602021536.39525-3-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com>
* virtio_pci_modern: correct sparse tags for notifyMichael S. Tsirkin2021-05-041-2/+2
| | | | | | | | | When switching virtio_pci_modern to use a helper for mappings we lost an __iomem tag. Restore it. Reported-by: kernel test robot <lkp@intel.com> Fixes: 9e3bb9b79a71 ("virtio_pci_modern: introduce helper to map vq notify area") Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* virtio-pci library: report resource addressJason Wang2021-05-031-1/+3
| | | | | | | | | | Sometimes it might be useful to report the capability physical address. One example is to report the physical address of the doorbell in order to be mapped by userspace. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210415073147.19331-7-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
* virito_pci libray: hide vp_modern_map_capability()Jason Wang2021-05-031-5/+0
| | | | | | | | | | | No user now and the capability should not be setup externally. Instead, every access to the capability should be done via virtio_pci_modern_device. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210415073147.19331-6-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com>
* virtio_pci_modern: hide vp_modern_get_queue_notify_off()Jason Wang2021-05-031-2/+0
| | | | | | | | | | | All users (both virtio-pci library and vp_vdpa driver) has been switched to use vp_modern_map_vq_notify(). So there's no need to export the low level helper of vp_modern_get_queue_notify_off(). Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210415073147.19331-5-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com>
* virtio_pci_modern: introduce helper to map vq notify areaJason Wang2021-05-031-0/+2
| | | | | | | | | | | This patch factors out the logic of vq notify area mapping. Following patches will switch to use this common helpers for both virtio_pci library and virtio-pci vDPA driver. Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210415073147.19331-2-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Reviewed-by: Eli Cohen <elic@nvidia.com>
* virtio-pci: introduce modern device moduleJason Wang2021-02-231-0/+111
Signed-off-by: Jason Wang <jasowang@redhat.com> Link: https://lore.kernel.org/r/20210104065503.199631-17-jasowang@redhat.com Including a bugfix: virtio: don't prompt CONFIG_VIRTIO_PCI_MODERN Cc: Arnd Bergmann <arnd@arndb.de> Cc: Anders Roxell <anders.roxell@linaro.org> Cc: Guenter Roeck <linux@roeck-us.net> Reported-by: Naresh Kamboju <naresh.kamboju@linaro.org> Fixes: 86b87c9d858b6 ("virtio-pci: introduce modern device module") Signed-off-by: Jason Wang <jasowang@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Link: https://lore.kernel.org/r/20210223061905.422659-2-jasowang@redhat.com Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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