MLX_NSEG
sg = sc->mlx_sgtable + (mc->mc_slot * MLX_NSEG);
mc->mc_sgphys = sc->mlx_sgbusaddr + (mc->mc_slot * MLX_NSEG * sizeof(struct mlx_sgentry));
segsize = sizeof(struct mlx_sgentry) * MLX_NSEG * ncmd;
MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */
MAXBSIZE, MLX_NSEG, /* maxsize, nsegments */