483 		pdescinfo_t *pdi, n_pdi;  in mmd_copy()  local
497 		pdi = &(pd->pd_pdi);  in mmd_copy()
504 		ASSERT(pdi->flags & PDESC_HAS_REF);  in mmd_copy()
505 		if (pdi->flags & PDESC_HBUF_REF) {  in mmd_copy()
510 			n_pdi.hdr_base = REL_OFF(pdi->hdr_base, base, n_base);  in mmd_copy()
511 			n_pdi.hdr_rptr = REL_OFF(pdi->hdr_rptr, base, n_base);  in mmd_copy()
512 			n_pdi.hdr_wptr = REL_OFF(pdi->hdr_wptr, base, n_base);  in mmd_copy()
513 			n_pdi.hdr_lim = REL_OFF(pdi->hdr_lim, base, n_base);  in mmd_copy()
516 		if (pdi->flags & PDESC_PBUF_REF) {  in mmd_copy()
518 			n_pdi.pld_cnt = pdi->pld_cnt;  in mmd_copy()
520 			for (i = 0; i < pdi->pld_cnt; i++) {  in mmd_copy()
521 				idx = pdi->pld_ary[i].pld_pbuf_idx;  in mmd_copy()
536 				    REL_OFF(pdi->pld_ary[i].pld_rptr,  in mmd_copy()
539 				    REL_OFF(pdi->pld_ary[i].pld_wptr,  in mmd_copy()
634 #define	HBUF_REF_VALID(mmd, pdi)					\  argument
635 	((mmd)->mmd_hbuf != NULL && (pdi)->hdr_rptr != NULL &&		\
636 	(pdi)->hdr_wptr != NULL && (pdi)->hdr_base != NULL &&		\
637 	(pdi)->hdr_lim != NULL && (pdi)->hdr_lim >= (pdi)->hdr_base &&	\
638 	(pdi)->hdr_wptr >= (pdi)->hdr_rptr &&				\
639 	(pdi)->hdr_base <= (pdi)->hdr_rptr &&				\
640 	(pdi)->hdr_lim >= (pdi)->hdr_wptr &&				\
641 	(pdi)->hdr_base >= (mmd)->mmd_hbuf->b_rptr &&			\
643 	(pdi->hdr_base - (mmd)->mmd_hbuf->b_rptr),			\
644 	PDESC_HDRSIZE(pdi)))
650 pbuf_ref_valid(multidata_t *mmd, pdescinfo_t *pdi)  in pbuf_ref_valid()  argument
657 	if (pdi->pld_cnt == 0 || pdi->pld_cnt > mmd->mmd_pbuf_cnt) {  in pbuf_ref_valid()
662 	pa = &pdi->pld_ary[0];  in pbuf_ref_valid()
663 	while (valid && i < pdi->pld_cnt) {  in pbuf_ref_valid()
670 			PDESC_PLD_SPAN_SIZE(pdi, i)));  in pbuf_ref_valid()
678 			    "(valid 0x%p-0x%p len %d)\n", (void *)pdi,  in pbuf_ref_valid()
679 			    i, pdi->pld_cnt, idx, mmd->mmd_pbuf_cnt,  in pbuf_ref_valid()
682 			    (int)PDESC_PLD_SPAN_SIZE(pdi, i),  in pbuf_ref_valid()
701 mmd_addpdesc(multidata_t *mmd, pdescinfo_t *pdi, int *err, int kmflags)  in mmd_addpdesc()  argument
705 	ASSERT(pdi != NULL);  in mmd_addpdesc()
706 	ASSERT(pdi->flags & PDESC_HAS_REF);  in mmd_addpdesc()
710 	    (((pdi->flags & PDESC_HBUF_REF) && !HBUF_REF_VALID(mmd, pdi)) ||  in mmd_addpdesc()
711 	    ((pdi->flags & PDESC_PBUF_REF) && !pbuf_ref_valid(mmd, pdi)))) {  in mmd_addpdesc()
717 	return (mmd_addpdesc_int(mmd, pdi, err, kmflags));  in mmd_addpdesc()
725 mmd_addpdesc_int(multidata_t *mmd, pdescinfo_t *pdi, int *err, int kmflags)  in mmd_addpdesc_int()  argument
730 	ASSERT(pdi->flags & PDESC_HAS_REF);  in mmd_addpdesc_int()
731 	ASSERT(!(pdi->flags & PDESC_HBUF_REF) || HBUF_REF_VALID(mmd, pdi));  in mmd_addpdesc_int()
732 	ASSERT(!(pdi->flags & PDESC_PBUF_REF) || pbuf_ref_valid(mmd, pdi));  in mmd_addpdesc_int()
773 	PDI_COPY(pdi, &(pd->pd_pdi));  in mmd_addpdesc_int()
908 mmd_getpdesc(multidata_t *mmd, pdesc_t *pd, pdescinfo_t *pdi, uint_t forw,  in mmd_getpdesc()  argument
950 	if (pd != NULL && pdi != NULL)  in mmd_getpdesc()
951 		PDI_COPY(&(pd->pd_pdi), pdi);  in mmd_getpdesc()
962 mmd_getfirstpdesc(multidata_t *mmd, pdescinfo_t *pdi)  in mmd_getfirstpdesc()  argument
964 	return (mmd_getpdesc(mmd, NULL, pdi, 1, B_FALSE));  in mmd_getfirstpdesc()
971 mmd_getlastpdesc(multidata_t *mmd, pdescinfo_t *pdi)  in mmd_getlastpdesc()  argument
973 	return (mmd_getpdesc(mmd, NULL, pdi, 0, B_FALSE));  in mmd_getlastpdesc()
980 mmd_getnextpdesc(pdesc_t *pd, pdescinfo_t *pdi)  in mmd_getnextpdesc()  argument
982 	return (mmd_getpdesc(pd->pd_slab->pds_mmd, pd, pdi, 1, B_FALSE));  in mmd_getnextpdesc()
989 mmd_getprevpdesc(pdesc_t *pd, pdescinfo_t *pdi)  in mmd_getprevpdesc()  argument
991 	return (mmd_getpdesc(pd->pd_slab->pds_mmd, pd, pdi, 0, B_FALSE));  in mmd_getprevpdesc()
1000 pdi_in_range(pdescinfo_t *pdi, pdescinfo_t *c_pdi)  in pdi_in_range()  argument
1003 	struct pld_ary_s *pa = &pdi->pld_ary[0];  in pdi_in_range()
1006 	if (pdi->hdr_base < c_pdi->hdr_base || pdi->hdr_lim > c_pdi->hdr_lim)  in pdi_in_range()
1016 	if (pdi->pld_cnt < c_pdi->pld_cnt)  in pdi_in_range()
1033 mmd_adjpdesc(pdesc_t *pd, pdescinfo_t *pdi)  in mmd_adjpdesc()  argument
1039 	ASSERT(pdi != NULL);  in mmd_adjpdesc()
1050 	if (!(pdi->flags & PDESC_HAS_REF))  in mmd_adjpdesc()
1055 	    (((pdi->flags & PDESC_HBUF_REF) && !HBUF_REF_VALID(mmd, pdi)) ||  in mmd_adjpdesc()
1056 	    ((pdi->flags & PDESC_PBUF_REF) && !pbuf_ref_valid(mmd, pdi))))  in mmd_adjpdesc()
1061 	if (!pdi_in_range(pdi, c_pdi))  in mmd_adjpdesc()
1065 	PDI_COPY(pdi, c_pdi);  in mmd_adjpdesc()
1080 	pdescinfo_t *pdi;  in mmd_transform()  local
1096 	pdi = &(pd->pd_pdi);  in mmd_transform()
1097 	if (pdi->flags & PDESC_HBUF_REF)  in mmd_transform()
1098 		h_size = PDESC_HDRL(pdi);  in mmd_transform()
1099 	if (pdi->flags & PDESC_PBUF_REF) {  in mmd_transform()
1100 		for (i = 0; i < pdi->pld_cnt; i++)  in mmd_transform()
1101 			p_size += PDESC_PLD_SPAN_SIZE(pdi, i);  in mmd_transform()
1112 	if ((pdi->flags & PDESC_HBUF_REF) && h_size > 0) {  in mmd_transform()
1113 		bcopy(pdi->hdr_rptr, mp->b_wptr, h_size);  in mmd_transform()
1118 	if ((pdi->flags & PDESC_PBUF_REF) && p_size > 0) {  in mmd_transform()
1119 		for (i = 0; i < pdi->pld_cnt; i++) {  in mmd_transform()
1120 			len = PDESC_PLD_SPAN_SIZE(pdi, i);  in mmd_transform()
1122 				bcopy(pdi->pld_ary[i].pld_rptr,  in mmd_transform()
1140 	pdescinfo_t *pdi;  in mmd_transform_link()  local
1153 	pdi = &(pd->pd_pdi);  in mmd_transform_link()
1156 	if ((pdi->flags & PDESC_HBUF_REF)) {  in mmd_transform_link()
1159 		nmp->b_rptr = pdi->hdr_rptr;  in mmd_transform_link()
1160 		nmp->b_wptr = pdi->hdr_wptr;  in mmd_transform_link()
1164 	if (pdi->flags & PDESC_PBUF_REF) {  in mmd_transform_link()
1167 		struct pld_ary_s *pa = &pdi->pld_ary[0];  in mmd_transform_link()
1170 		for (i = 0; i < pdi->pld_cnt; i++, pa++) {  in mmd_transform_link()
1174 			if (PDESC_PLD_SPAN_SIZE(pdi, i) == 0)  in mmd_transform_link()
1245 mmd_getpdescinfo(pdesc_t *pd, pdescinfo_t *pdi)  in mmd_getpdescinfo()  argument
1251 	ASSERT(pdi != NULL);  in mmd_getpdescinfo()
1258 	PDI_COPY(&(pd->pd_pdi), pdi);  in mmd_getpdescinfo()
1560 	pdescinfo_t *pdi;  in mmd_getsize()  local
1584 			pdi = &pd->pd_pdi;  in mmd_getsize()
1590 			if (pdi->flags & PDESC_REM_DEFER)  in mmd_getsize()
1593 			if (pdi->flags & PDESC_HBUF_REF)  in mmd_getsize()
1594 				*pinuse += PDESC_HDRL(pdi);  in mmd_getsize()
1596 			if (pdi->flags & PDESC_PBUF_REF) {  in mmd_getsize()
1597 				for (i = 0; i < pdi->pld_cnt; i++)  in mmd_getsize()
1598 					*pinuse += PDESC_PLDL(pdi, i);  in mmd_getsize()