ADV_SG_BLOCK
ADV_SG_BLOCK *sg_list_ptr; /* SG list virtual address. */
ADV_SG_BLOCK sg_block; /* Sgblock structure. */
(sizeof(ADV_SG_BLOCK) * \
static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b)
ADV_SG_BLOCK *sg_block, *prev_sg_block;