diff options
Diffstat (limited to 'drivers/vdpa/ifcvf/ifcvf_main.c')
| -rw-r--r-- | drivers/vdpa/ifcvf/ifcvf_main.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/vdpa/ifcvf/ifcvf_main.c b/drivers/vdpa/ifcvf/ifcvf_main.c index c34e0f88e961..7f78c47e40d6 100644 --- a/drivers/vdpa/ifcvf/ifcvf_main.c +++ b/drivers/vdpa/ifcvf/ifcvf_main.c @@ -743,6 +743,7 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, struct vdpa_device *vdpa_dev; struct pci_dev *pdev; struct ifcvf_hw *vf; + u64 device_features; int ret; ifcvf_mgmt_dev = container_of(mdev, struct ifcvf_vdpa_mgmt_dev, mdev); @@ -762,6 +763,17 @@ static int ifcvf_vdpa_dev_add(struct vdpa_mgmt_dev *mdev, const char *name, adapter->vf = vf; vdpa_dev = &adapter->vdpa; + device_features = vf->hw_features; + if (config->mask & BIT_ULL(VDPA_ATTR_DEV_FEATURES)) { + if (config->device_features & ~device_features) { + IFCVF_ERR(pdev, "The provisioned features 0x%llx are not supported by this device with features 0x%llx\n", + config->device_features, device_features); + return -EINVAL; + } + device_features &= config->device_features; + } + vf->dev_features = device_features; + if (name) ret = dev_set_name(&vdpa_dev->dev, "%s", name); else @@ -866,6 +878,7 @@ static int ifcvf_probe(struct pci_dev *pdev, const struct pci_device_id *id) ifcvf_mgmt_dev->mdev.device = dev; ifcvf_mgmt_dev->mdev.max_supported_vqs = vf->nr_vring; ifcvf_mgmt_dev->mdev.supported_features = vf->hw_features; + ifcvf_mgmt_dev->mdev.config_attr_mask = (1 << VDPA_ATTR_DEV_FEATURES); ret = vdpa_mgmtdev_register(&ifcvf_mgmt_dev->mdev); if (ret) { |