231 ccdinit(struct gctl_req *req, struct ccd_s *cs)  in ccdinit()  argument
241 	cs->sc_size = 0;  in ccdinit()
246 	if (cs->sc_flags & CCDF_LINUX) {  in ccdinit()
247 		cs->sc_offset = 0;  in ccdinit()
248 		cs->sc_ileave *= 2;  in ccdinit()
249 		if (cs->sc_flags & CCDF_MIRROR && cs->sc_ndisks != 2)  in ccdinit()
253 		if (cs->sc_flags & CCDF_NO_OFFSET)  in ccdinit()
254 			cs->sc_offset = 0;  in ccdinit()
256 			cs->sc_offset = CCD_OFFSET;  in ccdinit()
258 	for (ix = 0; ix < cs->sc_ndisks; ix++) {  in ccdinit()
259 		ci = &cs->sc_cinfo[ix];  in ccdinit()
265 		size = mediasize / DEV_BSIZE - cs->sc_offset;  in ccdinit()
269 		if (cs->sc_ileave > 1)  in ccdinit()
270 			size -= size % cs->sc_ileave;  in ccdinit()
281 		cs->sc_size += size;  in ccdinit()
288 	if ((cs->sc_ileave > 0) &&  in ccdinit()
289 	    (cs->sc_ileave < (maxsecsize / DEV_BSIZE))) {  in ccdinit()
303 	if (cs->sc_flags & CCDF_UNIFORM) {  in ccdinit()
304 		for (ix = 0; ix < cs->sc_ndisks; ix++) {  in ccdinit()
305 			ci = &cs->sc_cinfo[ix];  in ccdinit()
308 		cs->sc_size = cs->sc_ndisks * minsize;  in ccdinit()
311 	if (cs->sc_flags & CCDF_MIRROR) {  in ccdinit()
318 		if (cs->sc_ndisks % 2) {  in ccdinit()
323 		if (cs->sc_ileave == 0) {  in ccdinit()
328 		cs->sc_size = (cs->sc_ndisks/2) * minsize;  in ccdinit()
334 	ccdinterleave(cs);  in ccdinit()
340 	cs->sc_secsize = maxsecsize;  in ccdinit()
346 ccdinterleave(struct ccd_s *cs)  in ccdinterleave()  argument
361 	size = (cs->sc_ndisks + 1) * sizeof(struct ccdiinfo);  in ccdinterleave()
362 	cs->sc_itable = g_malloc(size, M_WAITOK | M_ZERO);  in ccdinterleave()
370 	if (cs->sc_ileave == 0) {  in ccdinterleave()
372 		ii = cs->sc_itable;  in ccdinterleave()
374 		for (ix = 0; ix < cs->sc_ndisks; ix++) {  in ccdinterleave()
381 			bn += cs->sc_cinfo[ix].ci_size;  in ccdinterleave()
393 	for (ii = cs->sc_itable; ; ii++) {  in ccdinterleave()
398 		ii->ii_index = g_malloc((sizeof(int) * cs->sc_ndisks),  in ccdinterleave()
405 		for (ci = cs->sc_cinfo; ci < &cs->sc_cinfo[cs->sc_ndisks];   in ccdinterleave()
427 		ii->ii_startblk = bn / cs->sc_ileave;  in ccdinterleave()
441 		for (ci = cs->sc_cinfo;   in ccdinterleave()
442 		    ci < &cs->sc_cinfo[cs->sc_ndisks]; ci++) {  in ccdinterleave()
444 				ii->ii_index[ix++] = ci - cs->sc_cinfo;  in ccdinterleave()
449 		lbn = smallci->ci_size / cs->sc_ileave;  in ccdinterleave()
462 	struct ccd_s *cs;  in g_ccd_start()  local
464 	cs = bp->bio_to->geom->softc;  in g_ccd_start()
479 	bn = bp->bio_offset / cs->sc_secsize;  in g_ccd_start()
486 		err = ccdbuffer(cbp, cs, bp, bn, addr, bcount);  in g_ccd_start()
497 		if (cs->sc_flags & CCDF_MIRROR) {  in g_ccd_start()
511 				int pick = cs->sc_pick;  in g_ccd_start()
512 				daddr_t range = cs->sc_size / 16;  in g_ccd_start()
514 				if (bn < cs->sc_blk[pick] - range ||  in g_ccd_start()
515 				    bn > cs->sc_blk[pick] + range  in g_ccd_start()
517 					cs->sc_pick = pick = 1 - pick;  in g_ccd_start()
519 				cs->sc_blk[pick] = bn + btodb(rcount);  in g_ccd_start()
537 ccdbuffer(struct bio **cb, struct ccd_s *cs, struct bio *bp, daddr_t bn, caddr_t addr, long bcount)  in ccdbuffer()  argument
550 	if (cs->sc_ileave == 0) {  in ccdbuffer()
558 		for (ci = cs->sc_cinfo; cbn >= sblk + ci->ci_size; ci++)  in ccdbuffer()
570 		cboff = cbn % cs->sc_ileave;	/* DEV_BSIZE gran */  in ccdbuffer()
571 		cbn = cbn / cs->sc_ileave;	/* DEV_BSIZE * ileave gran */  in ccdbuffer()
576 		for (ii = cs->sc_itable; ii->ii_ndisk; ii++) {  in ccdbuffer()
606 			if (cs->sc_flags & CCDF_MIRROR) {  in ccdbuffer()
622 				ci2 = &cs->sc_cinfo[ccdisk + ndisk2];  in ccdbuffer()
629 		ci = &cs->sc_cinfo[ccdisk];  in ccdbuffer()
636 		cbn *= cs->sc_ileave;  in ccdbuffer()
646 	cbp->bio_offset = dbtob(cbn + cboff + cs->sc_offset);  in ccdbuffer()
648 	if (cs->sc_ileave == 0)  in ccdbuffer()
651               cbc = dbtob((off_t)(cs->sc_ileave - cboff));  in ccdbuffer()
657 	if (cs->sc_flags & CCDF_MIRROR) {  in ccdbuffer()
871 	struct ccd_s *cs;  in g_ccd_list()  local
883 		cs = gp->softc;  in g_ccd_list()
884 		if (cs == NULL || (unit >= 0 && unit != cs->sc_unit))  in g_ccd_list()
887 		    cs->sc_unit, cs->sc_ileave, cs->sc_flags & CCDF_USERMASK);  in g_ccd_list()
889 		for (i = 0; i < cs->sc_ndisks; ++i) {  in g_ccd_list()
891 			    cs->sc_cinfo[i].ci_provider->name);  in g_ccd_list()