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vdpa_sim: store parsed MAC address in a buffer

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commit cf1a3b35382c10ce315c32bd2b3d7789897fbe13 upstream.

As preparation for the next patches, we store the MAC address,
parsed during the vdpasim_create(), in a buffer that will be used
to fill 'config' together with other configurations.

Acked-by: Jason Wang <jasowang@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Link: https://lore.kernel.org/r/20201215144256.155342-11-sgarzare@redhat.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Stefano Garzarella 2020-12-15 15:42:48 +01:00 committed by Greg Kroah-Hartman
parent 0ed8181561
commit 0fb67eda6a
1 changed files with 7 additions and 3 deletions
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10
drivers/vdpa/vdpa_sim/vdpa_sim.c
View File

@ -42,6 +42,8 @@ static char *macaddr;
module_param(macaddr, charp, 0);
MODULE_PARM_DESC(macaddr, "Ethernet MAC address");
u8 macaddr_buf[ETH_ALEN];
struct vdpasim_virtqueue {
struct vringh vring;
struct vringh_kiov iov;
@ -392,13 +394,13 @@ static struct vdpasim *vdpasim_create(struct vdpasim_dev_attr *dev_attr)
goto err_iommu;
if (macaddr) {
mac_pton(macaddr, vdpasim->config.mac);
if (!is_valid_ether_addr(vdpasim->config.mac)) {
mac_pton(macaddr, macaddr_buf);
if (!is_valid_ether_addr(macaddr_buf)) {
ret = -EADDRNOTAVAIL;
goto err_iommu;
}
} else {
eth_random_addr(vdpasim->config.mac);
eth_random_addr(macaddr_buf);
}
for (i = 0; i < dev_attr->nvqs; i++)
@ -532,6 +534,8 @@ static int vdpasim_set_features(struct vdpa_device *vdpa, u64 features)
config->mtu = cpu_to_vdpasim16(vdpasim, 1500);
config->status = cpu_to_vdpasim16(vdpasim, VIRTIO_NET_S_LINK_UP);
memcpy(config->mac, macaddr_buf, ETH_ALEN);
return 0;
}