search for: _linux_vdpa_h

...; + * Config accesses aren't supposed to trigger before features are set. > + * If it does happen we assume a legacy guest. > + */ > + if (!vdev->features_valid) > + vdpa_set_features(vdev, 0); > + ops->get_config(vdev, offset, buf, len); > +} > + > #endif /* _LINUX_VDPA_H */

...; + * Config accesses aren't supposed to trigger before features are set. > + * If it does happen we assume a legacy guest. > + */ > + if (!vdev->features_valid) > + vdpa_set_features(vdev, 0); > + ops->get_config(vdev, offset, buf, len); > +} > + > #endif /* _LINUX_VDPA_H */

...Wang <jasowang at redhat.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h new file mode 100644 index 000000000000..52543a862801 --- /dev/null +++ b/include/linux/vdpa.h @@ -0,0 +1,233 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_VDPA_H +#define _LINUX_VDPA_H + +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/vhost_iotlb.h> + +/** + * vDPA callback definition. + * @callback: interrupt callback function + * @private: the data passed to the callback function + */ +struct vdpa_callback { + i...

...Wang <jasowang at redhat.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h new file mode 100644 index 000000000000..7cb8ef32e2e8 --- /dev/null +++ b/include/linux/vdpa.h @@ -0,0 +1,232 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _LINUX_VDPA_H +#define _LINUX_VDPA_H + +#include <linux/device.h> +#include <linux/interrupt.h> +#include <linux/vhost_iotlb.h> + +/** + * vDPA callback definition. + * @callback: interrupt callback function + * @private: the data passed to the callback function + */ +struct vdpa_callback { + i...

..._config_ops *ops = vdev->config; + + /* + * Config accesses aren't supposed to trigger before features are set. + * If it does happen we assume a legacy guest. + */ + if (!vdev->features_valid) + vdpa_set_features(vdev, 0); + ops->get_config(vdev, offset, buf, len); +} + #endif /* _LINUX_VDPA_H */ -- MST

..._config_ops *ops = vdev->config; + + /* + * Config accesses aren't supposed to trigger before features are set. + * If it does happen we assume a legacy guest. + */ + if (!vdev->features_valid) + vdpa_set_features(vdev, 0); + ops->get_config(vdev, offset, buf, len); +} + #endif /* _LINUX_VDPA_H */ -- MST

...ed to trigger before features are set. > > + * If it does happen we assume a legacy guest. > > + */ > > + if (!vdev->features_valid) > > + vdpa_set_features(vdev, 0); > > + ops->get_config(vdev, offset, buf, len); > > +} > > + > > #endif /* _LINUX_VDPA_H */

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

Hi all: This is an update version of vDPA support in kernel. vDPA device is a device that uses a datapath which complies with the virtio specifications with vendor specific control path. vDPA devices can be both physically located on the hardware or emulated by software. vDPA hardware devices are usually implemented through PCIE with the following types: - PF (Physical Function) - A single

Config space endian-ness is currently a mess: fields are not tagged with the correct endian-ness so it's easy to make mistakes like instanciating config space in native endian-ness. The following patches adding sparse tagging are currently in my tree. Lightly tested. As a follow-up, I plan to add new APIs that handle modern config space in a more efficient way (bypassing the version check).

Hi all: This is an updated version of kernel support for vDPA device. Various changes were made based on the feedback since last verion. One major change is to drop the sysfs API and leave the management interface for future development, and introudce the incremental DMA bus operations. Please see changelog for more information. The work on vhost, IFCVF (intel VF driver for vDPA) and qemu is