CHCR_SET_TCB_FIELD_LEN
txpkt->len = htonl(DIV_ROUND_UP(CHCR_SET_TCB_FIELD_LEN, 16));
if (unlikely(left < CHCR_SET_TCB_FIELD_LEN)) {
CHCR_SET_TCB_FIELD_LEN);
if (left == CHCR_SET_TCB_FIELD_LEN)
len = wr_len + 4 * roundup(CHCR_SET_TCB_FIELD_LEN, 16);
len = wr_len + cpl * roundup(CHCR_SET_TCB_FIELD_LEN, 16);