aac_raw_io
struct aac_raw_io *io = (struct aac_raw_io *)&acp->slotp->fibp->data[0];
sizeof (struct aac_raw_io) + (acp->left_cookien - 1) * \
aac_blockread64 aac_raw_io aac_sg_entry aac_sg_entry64 aac_sg_entryraw \
struct aac_raw_io *io = (struct aac_raw_io *)fibp->data;