Function vhost_user_get_config

dpdk/lib/vhost/vhost_user.c:2557–2587

}

static int
vhost_user_get_config(struct virtio_net **pdev,
			struct vhu_msg_context *ctx,
			int main_fd __rte_unused)
{
	struct virtio_net *dev = *pdev;
	struct rte_vdpa_device *vdpa_dev = dev->vdpa_dev;
	int ret = 0;

	if (validate_msg_fds(dev, ctx, 0) != 0)
		return RTE_VHOST_MSG_RESULT_ERR;

	if (!vdpa_dev) {
		VHOST_LOG_CONFIG(dev->ifname, ERR, "is not vDPA device!\n");
		return RTE_VHOST_MSG_RESULT_ERR;
	}

	if (vdpa_dev->ops->get_config) {
		ret = vdpa_dev->ops->get_config(dev->vid,
					   ctx->msg.payload.cfg.region,
					   ctx->msg.payload.cfg.size);
		if (ret != 0) {
			ctx->msg.size = 0;
			VHOST_LOG_CONFIG(dev->ifname, ERR, "get_config() return error!\n");
		}
	} else {
		VHOST_LOG_CONFIG(dev->ifname, ERR, "get_config() not supported!\n");
	}

	return RTE_VHOST_MSG_RESULT_REPLY;
}

static int
vhost_user_set_config(struct virtio_net **pdev,