MLX_SGL_SIZE
sgphys = mlx->mlx_sgls_paddr + (MLX_SGL_SIZE * mc->mc_ident);
sgloff = MLX_SGL_SIZE * mc->mc_ident;
MLX_SGL_SIZE, BUS_DMASYNC_PREWRITE);
MLX_SGL_SIZE * mc->mc_ident, MLX_SGL_SIZE,
size = MLX_SGL_SIZE * MLX_MAX_QUEUECNT;