search for: desc_area

...;cfg->queue_used_lo, - &cfg->queue_used_hi); - vp_iowrite16(hw->vring[i].size, &cfg->queue_size); - ifcvf_set_vq_state(hw, i, hw->vring[i].last_avail_idx); - vp_iowrite16(1, &cfg->queue_enable); - } +int ifcvf_set_vq_address(struct ifcvf_hw *hw, u16 qid, u64 desc_area, + u64 driver_area, u64 device_area) +{ + struct virtio_pci_common_cfg __iomem *cfg = hw->common_cfg; + + vp_iowrite16(qid, &cfg->queue_select); + vp_iowrite64_twopart(desc_area, &cfg->queue_desc_lo, + &cfg->queue_desc_hi); + vp_iowrite64_twopart(driver_area, &...

...;cfg->queue_used_lo, - &cfg->queue_used_hi); - vp_iowrite16(hw->vring[i].size, &cfg->queue_size); - ifcvf_set_vq_state(hw, i, hw->vring[i].last_avail_idx); - vp_iowrite16(1, &cfg->queue_enable); - } +int ifcvf_set_vq_address(struct ifcvf_hw *hw, u16 qid, u64 desc_area, + u64 driver_area, u64 device_area) +{ + struct virtio_pci_common_cfg __iomem *cfg = hw->common_cfg; + + vp_iowrite16(qid, &cfg->queue_select); + vp_iowrite64_twopart(desc_area, &cfg->queue_desc_lo, + &cfg->queue_desc_hi); + vp_iowrite64_twopart(driver_area, &...

...> +/** > + * struct vfio_mdev_device_ops - Structure to be registered for each > + * mdev device to register the device to virtio-mdev module. > + * > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) > + * @set_vq_num: Set the size of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index &g...

...> +/** > + * struct vfio_mdev_device_ops - Structure to be registered for each > + * mdev device to register the device to virtio-mdev module. > + * > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) > + * @set_vq_num: Set the size of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index &g...

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

...to be registered for each > > > + * mdev device to register the device to virtio-mdev module. > > > + * > > > + * @set_vq_address: Set the address of virtqueue > > > + * @mdev: mediated device > > > + * @idx: virtqueue index > > > + * @desc_area: address of desc area > > > + * @driver_area: address of driver area > > > + * @device_area: address of device area > > > + * Returns integer: success (0) or error (< 0) > > > + * @set_vq_num: Set the size of virtqueue > > > + * @mdev: me...

...to be registered for each > > > + * mdev device to register the device to virtio-mdev module. > > > + * > > > + * @set_vq_address: Set the address of virtqueue > > > + * @mdev: mediated device > > > + * @idx: virtqueue index > > > + * @desc_area: address of desc area > > > + * @driver_area: address of driver area > > > + * @device_area: address of device area > > > + * Returns integer: success (0) or error (< 0) > > > + * @set_vq_num: Set the size of virtqueue > > > + * @mdev: me...

...> +/** > + * struct vfio_mdev_device_ops - Structure to be registered for each > + * mdev device to register the device to virtio-mdev module. > + * > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) > + * @set_vq_num: Set the size of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index &g...

...> +/** > + * struct vfio_mdev_device_ops - Structure to be registered for each > + * mdev device to register the device to virtio-mdev module. > + * > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) Probably dumb question (have not read the next patches yet): Is this agnostic regarding split or packed queues? > +...

...> +/** > + * struct vfio_mdev_device_ops - Structure to be registered for each > + * mdev device to register the device to virtio-mdev module. > + * > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) Probably dumb question (have not read the next patches yet): Is this agnostic regarding split or packed queues? > +...

...dy. If it was incremented, we'd need an MDEV_CLASS_ID_VIRTIOv2, which the virtio-mdev bus driver could add to its id table and handle differently. > + * > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) > + * @set_vq_num: Set the size of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index &...

...dy. If it was incremented, we'd need an MDEV_CLASS_ID_VIRTIOv2, which the virtio-mdev bus driver could add to its id table and handle differently. > + * > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) > + * @set_vq_num: Set the size of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index &...

...the device. > + * @get_generation: Get device generaton > + * @mdev: mediated device > + * Returns u32: device generation > + */ > +struct virtio_mdev_device_ops { > + /* Virtqueue ops */ > + int (*set_vq_address)(struct mdev_device *mdev, > + u16 idx, u64 desc_area, u64 driver_area, > + u64 device_area); > + void (*set_vq_num)(struct mdev_device *mdev, u16 idx, u32 num); > + void (*kick_vq)(struct mdev_device *mdev, u16 idx); > + void (*set_vq_cb)(struct mdev_device *mdev, u16 idx, > + struct virtio_mdev_callback *cb); > + void (...

...ack)(void *data); + void *private; +}; + +/** + * struct vfio_mdev_device_ops - Structure to be registered for each + * mdev device to register the device to virtio-mdev module. + * + * @set_vq_address: Set the address of virtqueue + * @mdev: mediated device + * @idx: virtqueue index + * @desc_area: address of desc area + * @driver_area: address of driver area + * @device_area: address of device area + * Returns integer: success (0) or error (< 0) + * @set_vq_num: Set the size of virtqueue + * @mdev: mediated device + * @idx: virtqueue index + * @num: the size of virtque...

...ack)(void *data); + void *private; +}; + +/** + * struct vfio_mdev_device_ops - Structure to be registered for each + * mdev device to register the device to virtio-mdev module. + * + * @set_vq_address: Set the address of virtqueue + * @mdev: mediated device + * @idx: virtqueue index + * @desc_area: address of desc area + * @driver_area: address of driver area + * @device_area: address of device area + * Returns integer: success (0) or error (< 0) + * @set_vq_num: Set the size of virtqueue + * @mdev: mediated device + * @idx: virtqueue index + * @num: the size of virtque...

...ered for each >>>> + * mdev device to register the device to virtio-mdev module. >>>> + * >>>> + * @set_vq_address: Set the address of virtqueue >>>> + * @mdev: mediated device >>>> + * @idx: virtqueue index >>>> + * @desc_area: address of desc area >>>> + * @driver_area: address of driver area >>>> + * @device_area: address of device area >>>> + * Returns integer: success (0) or error (< 0) >>>> + * @set_vq_num: Set the size of virtqueue >>>> + *...

...ct vfio_mdev_device_ops - Structure to be registered for each >> + * mdev device to register the device to virtio-mdev module. >> + * >> + * @set_vq_address: Set the address of virtqueue >> + * @mdev: mediated device >> + * @idx: virtqueue index >> + * @desc_area: address of desc area >> + * @driver_area: address of driver area >> + * @device_area: address of device area >> + * Returns integer: success (0) or error (< 0) >> + * @set_vq_num: Set the size of virtqueue >> + * @mdev: mediated device >> + *...

...on a device? Note that this is not listed as optional, but the sample driver doesn't implement it :-\ Thanks, Alex > + * is accepted by the device. > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) > + * @set_vq_num: Set the size of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index &...

...on a device? Note that this is not listed as optional, but the sample driver doesn't implement it :-\ Thanks, Alex > + * is accepted by the device. > + * @set_vq_address: Set the address of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index > + * @desc_area: address of desc area > + * @driver_area: address of driver area > + * @device_area: address of device area > + * Returns integer: success (0) or error (< 0) > + * @set_vq_num: Set the size of virtqueue > + * @mdev: mediated device > + * @idx: virtqueue index &...