T4_ULPTX_MIN_IO
roundup(copy_len, T4_ULPTX_MIN_IO),
DIV_ROUND_UP(copy_len, T4_ULPTX_MIN_IO)));
sc->len = cpu_to_be32(roundup(copy_len, T4_ULPTX_MIN_IO));
if (copy_len % T4_ULPTX_MIN_IO)
memset(to_dp + copy_len, 0, T4_ULPTX_MIN_IO -
(copy_len % T4_ULPTX_MIN_IO));
if (remain & ~T4_ULPTX_MIN_IO)
dmalen = remain & ~(T4_ULPTX_MIN_IO-1);