in gve_sysctl.c [457:473]
void gve_setup_sysctl(struct gve_priv *priv)
{
device_t dev;
struct sysctl_ctx_list *ctx;
struct sysctl_oid *tree;
struct sysctl_oid_list *child;
dev = priv->dev;
ctx = device_get_sysctl_ctx(dev);
tree = device_get_sysctl_tree(dev);
child = SYSCTL_CHILDREN(tree);
gve_setup_queue_stat_sysctl(ctx, child, priv);
gve_setup_adminq_stat_sysctl(ctx, child, priv);
gve_setup_main_stat_sysctl(ctx, child, priv);
gve_setup_sysctl_writables(ctx, child, priv);
}