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vdpa: Enable user to set mac and mtu of vdpa device

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$ vdpa dev add name bar mgmtdev vdpasim_net mac 00:11:22:33:44:55 mtu 9000

$ vdpa dev config show
bar: mac 00:11:22:33:44:55 link up link_announce false mtu 9000

$ vdpa dev config show -jp
{
    "config": {
        "bar": {
            "mac": "00:11:22:33:44:55",
            "link ": "up",
            "link_announce ": false,
            "mtu": 9000,
        }
    }
}

Signed-off-by: Parav Pandit <parav@nvidia.com>
Reviewed-by: Eli Cohen <elic@nvidia.com>
Acked-by: Jason Wang <jasowang@redhat.com>

Link: https://lore.kernel.org/r/20211026175519.87795-5-parav@nvidia.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
This commit is contained in:
Parav Pandit
2021-10-26 20:55:15 +03:00
committed by Michael S. Tsirkin
parent 960deb33be
commit d8ca2fa5be
7 changed files with 62 additions and 8 deletions
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17
include/linux/vdpa.h
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@@ -6,6 +6,8 @@
#include <linux/device.h>
#include <linux/interrupt.h>
#include <linux/vhost_iotlb.h>
#include <linux/virtio_net.h>
#include <linux/if_ether.h>
/**
* struct vdpa_calllback - vDPA callback definition.
@@ -93,6 +95,14 @@ struct vdpa_iova_range {
u64 last;
};
struct vdpa_dev_set_config {
struct {
u8 mac[ETH_ALEN];
u16 mtu;
} net;
u64 mask;
};
/**
* Corresponding file area for device memory mapping
* @file: vma->vm_file for the mapping
@@ -397,6 +407,7 @@ void vdpa_set_config(struct vdpa_device *dev, unsigned int offset,
* @dev_add: Add a vdpa device using alloc and register
* @mdev: parent device to use for device addition
* @name: name of the new vdpa device
* @config: config attributes to apply to the device under creation
* Driver need to add a new device using _vdpa_register_device()
* after fully initializing the vdpa device. Driver must return 0
* on success or appropriate error code.
@@ -407,7 +418,8 @@ void vdpa_set_config(struct vdpa_device *dev, unsigned int offset,
* _vdpa_unregister_device().
*/
struct vdpa_mgmtdev_ops {
int (*dev_add)(struct vdpa_mgmt_dev *mdev, const char *name);
int (*dev_add)(struct vdpa_mgmt_dev *mdev, const char *name,
const struct vdpa_dev_set_config *config);
void (*dev_del)(struct vdpa_mgmt_dev *mdev, struct vdpa_device *dev);
};
@@ -416,12 +428,15 @@ struct vdpa_mgmtdev_ops {
* @device: Management parent device
* @ops: operations supported by management device
* @id_table: Pointer to device id table of supported ids
* @config_attr_mask: bit mask of attributes of type enum vdpa_attr that
* management device support during dev_add callback
* @list: list entry
*/
struct vdpa_mgmt_dev {
struct device *device;
const struct vdpa_mgmtdev_ops *ops;
const struct virtio_device_id *id_table;
u64 config_attr_mask;
struct list_head list;
};