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SubjectRe: [RFC v2 1/4] hisi-acc-vfio-pci: add new vfio_pci driver for HiSilicon ACC devices
On Fri, Jul 02, 2021 at 10:58:46AM +0100, Shameer Kolothum wrote:
> Add a vendor-specific vfio_pci driver for HiSilicon ACC devices.
> This will be extended in follow-up patches to add support for
> vfio live migration feature.
>
> Signed-off-by: Shameer Kolothum <shameerali.kolothum.thodi@huawei.com>
> ---
> drivers/vfio/pci/Kconfig | 9 +++
> drivers/vfio/pci/Makefile | 2 +
> drivers/vfio/pci/hisi_acc_vfio_pci.c | 100 +++++++++++++++++++++++++++
> 3 files changed, 111 insertions(+)
> create mode 100644 drivers/vfio/pci/hisi_acc_vfio_pci.c

<...>

> +static const struct vfio_device_ops hisi_acc_vfio_pci_ops = {
> + .name = "hisi-acc-vfio-pci",
> + .open = hisi_acc_vfio_pci_open,
> + .release = vfio_pci_core_release,
> + .ioctl = vfio_pci_core_ioctl,
> + .read = vfio_pci_core_read,
> + .write = vfio_pci_core_write,
> + .mmap = vfio_pci_core_mmap,
> + .request = vfio_pci_core_request,
> + .match = vfio_pci_core_match,
> + .reflck_attach = vfio_pci_core_reflck_attach,

I don't remember what was proposed in vfio-pci-core conversion patches,
but would expect that default behaviour is to fallback to vfio_pci_core_* API
if ".release/.ioctl/e.t.c" are not redefined.

Thanks

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