diff options
Diffstat (limited to 'drivers/vdpa/ifcvf/ifcvf_base.c')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_base.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_base.c b/drivers/vdpa/ifcvf/ifcvf_base.c index ea6a78791c9b..1a661ab45af5 100644 --- a/drivers/vdpa/ifcvf/ifcvf_base.c +++ b/drivers/vdpa/ifcvf/ifcvf_base.c @@ -224,6 +224,18 @@ u64 ifcvf_get_features(struct ifcvf_hw *hw) return hw->hw_features; } +int ifcvf_verify_min_features(struct ifcvf_hw *hw, u64 features) +{ + struct ifcvf_adapter *ifcvf = vf_to_adapter(hw); + + if (!(features & BIT_ULL(VIRTIO_F_ACCESS_PLATFORM)) && features) { + IFCVF_ERR(ifcvf->pdev, "VIRTIO_F_ACCESS_PLATFORM is not negotiated\n"); + return -EINVAL; + } + + return 0; +} + void ifcvf_read_net_config(struct ifcvf_hw *hw, u64 offset, void *dst, int length) { |