search for: ifcvf_get_featur

This commit implements a new function ifcvf_get_driver_feature() which read driver_features from virtio registers. To be less ambiguous, ifcvf_set_features() is renamed to ifcvf_set_driver_features(), and ifcvf_get_features() is renamed to ifcvf_get_dev_features() which returns the provisioned vDPA device features. Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com> --- drivers/vdpa/ifcvf/ifcvf_base.c | 38 +++++++++++++++++---------------- drivers/vdpa/ifcvf/ifcvf_base.h | 5 +++-- drivers/vdpa/ifcvf/i...

This commit implements a new function ifcvf_get_driver_feature() which read driver_features from virtio registers. To be less ambiguous, ifcvf_set_features() is renamed to ifcvf_set_driver_features(), and ifcvf_get_features() is renamed to ifcvf_get_dev_features() which returns the provisioned vDPA device features. Signed-off-by: Zhu Lingshan <lingshan.zhu at intel.com> --- drivers/vdpa/ifcvf/ifcvf_base.c | 38 +++++++++++++++++---------------- drivers/vdpa/ifcvf/ifcvf_base.h | 5 +++-- drivers/vdpa/ifcvf/i...

...flush is needed? > + hw->generation++; > +} > + > +static void ifcvf_add_status(struct ifcvf_hw *hw, u8 status) > +{ > + if (status != 0) > + status |= ifcvf_get_status(hw); > + > + ifcvf_set_status(hw, status); > + ifcvf_get_status(hw); > +} > + > +u64 ifcvf_get_features(struct ifcvf_hw *hw) > +{ > + u32 features_lo, features_hi; > + struct virtio_pci_common_cfg *cfg = hw->common_cfg; > + > + iowrite32(0, &cfg->device_feature_select); > + features_lo = ioread32(&cfg->device_feature); > + > + iowrite32(1, &cfg->devic...

...add_status(struct ifcvf_hw *hw, u8 status) >>> +{ >>> +??? if (status != 0) >>> +??????? status |= ifcvf_get_status(hw); >>> + >>> +??? ifcvf_set_status(hw, status); >>> +??? ifcvf_get_status(hw); >>> +} >>> + >>> +u64 ifcvf_get_features(struct ifcvf_hw *hw) >>> +{ >>> +??? u32 features_lo, features_hi; >>> +??? struct virtio_pci_common_cfg *cfg = hw->common_cfg; >>> + >>> +??? iowrite32(0, &cfg->device_feature_select); >>> +??? features_lo = ioread32(&cfg->de...

Formerly, ifcvf driver has implemented a lazy-initialization mechanism for the virtqueues and other config space contents, it would store all configurations that passed down from the userspace, then load them to the device config space upon DRIVER_OK. This can not serve live migration, so this series implement an immediate initialization mechanism, which means rather than the former store-load

Formerly, ifcvf driver has implemented a lazy-initialization mechanism for the virtqueues and other config space contents, it would store all configurations that passed down from the userspace, then load them to the device config space upon DRIVER_OK. This can not serve live migration, so this series implement an immediate initialization mechanism, which means rather than the former store-load

...set_status(hw, 0); > + ifcvf_get_status(hw); > +} > + > +static void ifcvf_add_status(struct ifcvf_hw *hw, u8 status) > +{ > + if (status != 0) > + status |= ifcvf_get_status(hw); > + > + ifcvf_set_status(hw, status); > + ifcvf_get_status(hw); > +} > + > +u64 ifcvf_get_features(struct ifcvf_hw *hw) > +{ > + struct virtio_pci_common_cfg *cfg = hw->common_cfg; > + u32 features_lo, features_hi; > + > + iowrite32(0, &cfg->device_feature_select); > + features_lo = ioread32(&cfg->device_feature); > + > + iowrite32(1, &cfg->devic...

...set_status(hw, 0); > + ifcvf_get_status(hw); > +} > + > +static void ifcvf_add_status(struct ifcvf_hw *hw, u8 status) > +{ > + if (status != 0) > + status |= ifcvf_get_status(hw); > + > + ifcvf_set_status(hw, status); > + ifcvf_get_status(hw); > +} > + > +u64 ifcvf_get_features(struct ifcvf_hw *hw) > +{ > + struct virtio_pci_common_cfg *cfg = hw->common_cfg; > + u32 features_lo, features_hi; > + > + iowrite32(0, &cfg->device_feature_select); > + features_lo = ioread32(&cfg->device_feature); > + > + iowrite32(1, &cfg->devic...

...set_status(hw, 0); > + ifcvf_get_status(hw); > +} > + > +static void ifcvf_add_status(struct ifcvf_hw *hw, u8 status) > +{ > + if (status != 0) > + status |= ifcvf_get_status(hw); > + > + ifcvf_set_status(hw, status); > + ifcvf_get_status(hw); > +} > + > +u64 ifcvf_get_features(struct ifcvf_hw *hw) > +{ > + struct virtio_pci_common_cfg *cfg = hw->common_cfg; > + u32 features_lo, features_hi; > + > + iowrite32(0, &cfg->device_feature_select); > + features_lo = ioread32(&cfg->device_feature); > + > + iowrite32(1, &cfg->devic...

...set_status(hw, 0); > + ifcvf_get_status(hw); > +} > + > +static void ifcvf_add_status(struct ifcvf_hw *hw, u8 status) > +{ > + if (status != 0) > + status |= ifcvf_get_status(hw); > + > + ifcvf_set_status(hw, status); > + ifcvf_get_status(hw); > +} > + > +u64 ifcvf_get_features(struct ifcvf_hw *hw) > +{ > + struct virtio_pci_common_cfg *cfg = hw->common_cfg; > + u32 features_lo, features_hi; > + > + iowrite32(0, &cfg->device_feature_select); > + features_lo = ioread32(&cfg->device_feature); > + > + iowrite32(1, &cfg->devic...

...= arg; > + > + if (vring->cb.callback) > + return vring->cb.callback(vring->cb.private); > + > + return IRQ_HANDLED; > +} > + > +static u64 ifcvf_mdev_get_features(struct mdev_device *mdev) > +{ > + struct ifcvf_hw *vf = mdev_to_vf(mdev); > + > + return ifcvf_get_features(vf); > +} > + > +static int ifcvf_mdev_set_features(struct mdev_device *mdev, u64 features) > +{ > + struct ifcvf_hw *vf = mdev_to_vf(mdev); > + > + vf->req_features = features; > + > + return 0; > +} > + > +static u64 ifcvf_mdev_get_vq_state(struct mdev_dev...