DC395x_MAX_SG_LISTENTRY
#define SEGMENTX_LEN (sizeof(struct SGentry)*DC395x_MAX_SG_LISTENTRY)
srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].address;
srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].length;
srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].address =
srb->segment_x[DC395x_MAX_SG_LISTENTRY - 1].length =
ptr + (i++ * DC395x_MAX_SG_LISTENTRY);
ptr + (i * DC395x_MAX_SG_LISTENTRY);