diff options
| author | Jason Wang <jasowang@redhat.com> | 2025-09-24 15:00:44 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2025-10-01 07:24:55 -0400 |
| commit | 0d16cc439f36355d04b17ac45c3001d90969aa44 (patch) | |
| tree | 6944ce308a0f2ec3e12864a658d65f5d205ce07a /include/linux | |
| parent | 58aca3dbc7d8891a016cb17d488af3002812793b (diff) | |
vdpa: introduce map ops
Virtio core allows the transport to provide device or transport
specific mapping functions. This patch adds this support to vDPA. We
can simply do this by allowing the vDPA parent to register a
virtio_map_ops.
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jason Wang <jasowang@redhat.com>
Message-Id: <20250924070045.10361-2-jasowang@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Eugenio Pérez <eperezma@redhat.com>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/vdpa.h | 10 |
1 files changed, 7 insertions, 3 deletions
diff --git a/include/linux/vdpa.h b/include/linux/vdpa.h index ae0451945851..4cf21d6e9cfd 100644 --- a/include/linux/vdpa.h +++ b/include/linux/vdpa.h @@ -76,6 +76,7 @@ struct vdpa_mgmt_dev; * because core frees it; use driver_set_override() to * set or clear it. * @config: the configuration ops for this device. + * @map: the map ops for this device * @cf_lock: Protects get and set access to configuration layout. * @index: device index * @features_valid: were features initialized? for legacy guests @@ -91,6 +92,7 @@ struct vdpa_device { union virtio_map vmap; const char *driver_override; const struct vdpa_config_ops *config; + const struct virtio_map_ops *map; struct rw_semaphore cf_lock; /* Protects get/set config */ unsigned int index; bool features_valid; @@ -447,6 +449,7 @@ struct vdpa_config_ops { struct vdpa_device *__vdpa_alloc_device(struct device *parent, const struct vdpa_config_ops *config, + const struct virtio_map_ops *map, unsigned int ngroups, unsigned int nas, size_t size, const char *name, bool use_va); @@ -458,6 +461,7 @@ struct vdpa_device *__vdpa_alloc_device(struct device *parent, * @member: the name of struct vdpa_device within the @dev_struct * @parent: the parent device * @config: the bus operations that is supported by this device + * @map: the map operations that is supported by this device * @ngroups: the number of virtqueue groups supported by this device * @nas: the number of address spaces * @name: name of the vdpa device @@ -465,10 +469,10 @@ struct vdpa_device *__vdpa_alloc_device(struct device *parent, * * Return allocated data structure or ERR_PTR upon error */ -#define vdpa_alloc_device(dev_struct, member, parent, config, ngroups, nas, \ - name, use_va) \ +#define vdpa_alloc_device(dev_struct, member, parent, config, map, \ + ngroups, nas, name, use_va) \ container_of((__vdpa_alloc_device( \ - parent, config, ngroups, nas, \ + parent, config, map, ngroups, nas, \ (sizeof(dev_struct) + \ BUILD_BUG_ON_ZERO(offsetof( \ dev_struct, member))), name, use_va)), \ |