ADW_NO_OF_SG_PER_BLOCK
for (i = 0; i < ADW_NO_OF_SG_PER_BLOCK; i++) {
#define ADW_SGSIZE (ADW_NO_OF_SG_PER_BLOCK * ADW_SG_BLOCKCNT)
struct adw_sg_elm sg_list[ADW_NO_OF_SG_PER_BLOCK];