cam/scsi/scsi_low.c

220 	struct lun_info *li = cb->li;
225 	li->li_nqio ++;
233 	struct lun_info *li = cb->li;
238 	li->li_nqio --;
318 	struct lun_info *li;
322 	li = scsi_low_alloc_li(ti, lun, 0);
323 	if (li == NULL)
335 	TAILQ_FOREACH(cb, &li->li_discq, ccb_chain)
429 	struct lun_info *li;
473 		li = scsi_low_alloc_li(ti, lun, 1);
477 			scsi_low_message_enqueue(slp, ti, li, CCB_AUTOSENSE);
480 		scsi_low_enqueue(slp, ti, li, cb, flags, 0);
485 			scsi_low_test_abort(slp, ti, li);
572 			li = scsi_low_alloc_li(ti, lun, 1);
574 				li->li_quirks |= SCSI_LOW_DISK_DISC;
576 				li->li_quirks &= ~SCSI_LOW_DISK_DISC;
580 				li->li_quirks |= SCSI_LOW_DISK_QTAG;
582 				li->li_quirks &= ~SCSI_LOW_DISK_QTAG;
584 			li->li_flags_valid |= SCSI_LOW_LUN_FLAGS_QUIRKS_VALID;
586 			scsi_low_calcf_lun(li);
588 				scsi_low_calcf_show(li);
616 		li = scsi_low_alloc_li(ti, lun, 1);
617 		if (li != NULL && cts->type == CTS_TYPE_CURRENT_SETTINGS) {
623 			if (li->li_flags_valid != SCSI_LOW_LUN_FLAGS_ALL_VALID)
639 			diskflags = li->li_diskflags & li->li_cfgflags;
715 		li = scsi_low_alloc_li(ti, lun, 1);
716 		scsi_low_enqueue(slp, ti, li, cb, flags, msg);
1136 	struct lun_info *li;
1138 	li = LIST_FIRST(&ti->ti_litab);
1139 	if (li != NULL)
1141 		if (li->li_lun == lun)
1142 			return li;
1144 		while ((li = LIST_NEXT(li, lun_chain)) != NULL)
1146 			if (li->li_lun == lun)
1148 				LIST_REMOVE(li, lun_chain);
1149 				LIST_INSERT_HEAD(&ti->ti_litab, li, lun_chain);
1150 				return li;
1156 		return li;
1158 	li = SCSI_LOW_MALLOC(ti->ti_lunsize);
1159 	if (li == NULL)
1162 	bzero(li, ti->ti_lunsize);
1163 	li->li_lun = lun;
1164 	li->li_ti = ti;
1166 	li->li_cfgflags = SCSI_LOW_SYNC | SCSI_LOW_LINK | SCSI_LOW_DISC |
1168 	li->li_quirks = li->li_diskflags = SCSI_LOW_DISK_LFLAGS;
1169 	li->li_flags_valid = SCSI_LOW_LUN_FLAGS_USER_VALID;
1171 	li->li_flags_valid |= SCSI_LOW_LUN_FLAGS_QUIRKS_VALID;
1174 	li->li_qtagbits = (u_int) -1;
1176 	TAILQ_INIT(&li->li_discq);
1177 	LIST_INSERT_HEAD(&ti->ti_litab, li, lun_chain);
1182 			(slp, ti, li, SCSI_LOW_INFO_ALLOC);
1183 	scsi_low_calcf_lun(li);
1184 	return li;
1233 	struct lun_info *li, *nli;
1237 		for (li = LIST_FIRST(&ti->ti_litab); li != NULL; li = nli)
1242 					(slp, ti, li, SCSI_LOW_INFO_DEALLOC);
1244 			nli = LIST_NEXT(li, lun_chain);
1245 			SCSI_LOW_FREE(li);
1290 	struct lun_info *li;
1352 			for (li = LIST_FIRST(&ti->ti_litab); li != NULL;
1353 			     li = LIST_NEXT(li, lun_chain))
1355 				for (cb = TAILQ_FIRST(&li->li_discq);
1407 	struct lun_info *li;
1417 	li = cb->li;
1461 	struct lun_info *li;
1495 		li = scsi_low_alloc_li(ti, 0, 1);
1578 scsi_low_enqueue(slp, ti, li, cb, flags, msg)
1581 	struct lun_info *li;
1587 	cb->li = li;
1615 scsi_low_message_enqueue(slp, ti, li, flags)
1618 	struct lun_info *li;
1633 	scsi_low_enqueue(slp, ti, li, cb, flags, tmsgflags);
1664 scsi_low_sense_abort_start(slp, ti, li, cb)
1667 	struct lun_info *li;
1697 scsi_low_setup_start(slp, ti, li, cb)
1700 	struct lun_info *li;
1704 	switch(li->li_state)
1721 		cb->ccb_scp.scp_data = (u_int8_t *)&li->li_inq;
1722 		cb->ccb_scp.scp_datalen = sizeof(li->li_inq);
1730 		cb->ccb_scp.scp_data = (u_int8_t *)&li->li_sms;
1731 		cb->ccb_scp.scp_datalen = sizeof(li->li_sms);
1769 	struct lun_info *li;
1800 		li = cb->li;
1802 		if (li->li_disc == 0)
1806 		else if (li->li_nqio > 0)
1808 			if (li->li_nqio < li->li_maxnqio ||
1827 	slp->sl_Lnexus = li;
1837 		rv = scsi_low_sense_abort_start(slp, ti, li, cb);
1839 	else if (li->li_state >= SCSI_LOW_LUN_OK)
1851 		rv = scsi_low_setup_start(slp, ti, li, cb);
1858 	    (li->li_flags & SCSI_LOW_QTAG_OK) == SCSI_LOW_QTAG_OK &&
1859 	    li->li_maxnqio > 0)
1972 	struct lun_info *li;
1975 	li = cb->li;
1984 	if (li->li_state == SCSI_LOW_LUN_SLEEP &&
1991 	switch(li->li_state)
1996 			li->li_diskflags &=
1998 			if (li->li_lun > 0)
2003 		else if ((li->li_inq.sd_version & 7) >= 2 ||
2004 		         (li->li_inq.sd_len >= 4))
2006 			if ((li->li_inq.sd_support & 0x2) == 0)
2007 				li->li_diskflags &= ~SCSI_LOW_DISK_QTAG;
2008 			if ((li->li_inq.sd_support & 0x8) == 0)
2009 				li->li_diskflags &= ~SCSI_LOW_DISK_LINK;
2010 			if (li->li_lun > 0)
2012 			if ((li->li_inq.sd_support & 0x10) == 0)
2014 			if ((li->li_inq.sd_support & 0x20) == 0)
2016 			if ((li->li_inq.sd_support & 0x40) == 0)
2021 			li->li_diskflags &=
2023 			if (li->li_lun > 0)
2030 		scsi_low_calcf_lun(li);
2056 				li->li_diskflags &= ~SCSI_LOW_DISK_QTAG;
2059 		else if ((li->li_sms.sms_cmp.cmp_page & 0x3f) == 0x0a)
2061 			if (li->li_sms.sms_cmp.cmp_qc & 0x02)
2062 				li->li_qflags |= SCSI_LOW_QFLAG_CA_QCLEAR;
2064 				li->li_qflags &= ~SCSI_LOW_QFLAG_CA_QCLEAR;
2065 			if ((li->li_sms.sms_cmp.cmp_qc & 0x01) != 0)
2066 				li->li_diskflags &= ~SCSI_LOW_DISK_QTAG;
2068 		li->li_flags_valid |= SCSI_LOW_LUN_FLAGS_DISK_VALID;
2069 		scsi_low_calcf_lun(li);
2076 	li->li_state ++;
2077 	if (li->li_state == SCSI_LOW_LUN_OK)
2080 		scsi_low_calcf_lun(li);
2081 		if (li->li_flags_valid == SCSI_LOW_LUN_FLAGS_ALL_VALID &&
2084 			scsi_low_calcf_show(li);
2255 	struct lun_info *li;
2257 	for (li = LIST_FIRST(&ti->ti_litab); li != NULL;
2258 	     li = LIST_NEXT(li, lun_chain))
2260 		scsi_low_reset_nexus_lun(slp, li, fdone);
2261 		li->li_state = SCSI_LOW_LUN_SLEEP;
2262 		li->li_maxnqio = 0;
2282 	for (li = LIST_FIRST(&ti->ti_litab); li != NULL;
2283 	     li = LIST_NEXT(li, lun_chain))
2285 		li->li_flags = 0;
2287 		li->li_diskflags = SCSI_LOW_DISK_LFLAGS;
2288 		li->li_flags_valid &= ~SCSI_LOW_LUN_FLAGS_DISK_VALID;
2293 				(slp, ti, li, SCSI_LOW_INFO_REVOKE));
2295 		scsi_low_calcf_lun(li);
2389 scsi_low_establish_ccb(ti, li, tag)
2391 	struct lun_info *li;
2397 	if (li == NULL)
2400 	cb = TAILQ_FIRST(&li->li_discq);
2427 	TAILQ_REMOVE(&li->li_discq, cb, ccb_chain);
2436 	li->li_disc --;
2753 	struct lun_info *li = slp->sl_Lnexus;
2768 			msg |= (MSG_IDENTIFY_DISCPRIV | li->li_lun);
2770 			msg |= li->li_lun;
3031 	struct lun_info *li;
3040  	li = slp->sl_Lnexus;
3044 		li->li_maxnqio = li->li_maxnexus;
3048 		li->li_maxnqio = 0;
3049 		if (li->li_qflags & SCSI_LOW_QFLAG_CA_QCLEAR)
3050 			scsi_low_reset_nexus_lun(slp, li, 0);
3054 		li->li_maxnqio = 0;
3058 		if (li->li_maxnexus >= li->li_nqio)
3059 			li->li_maxnexus = li->li_nqio - 1;
3060 		li->li_maxnqio = li->li_maxnexus;
3079 	struct lun_info *li;
3083  	li = slp->sl_Lnexus;
3092 		li->li_maxnqio = li->li_maxnexus;
3100 	if ((li->li_flags & SCSI_LOW_LINK) == 0)
3110 		if (ncb->li == li)
3374 	struct lun_info *li = slp->sl_Lnexus;
3402 		if (li == NULL)
3418 		if (li == NULL)
3487 	struct lun_info *li;
3569 		li = slp->sl_Lnexus;
3570 		if (li == NULL)
3572 			li = scsi_low_alloc_li(ti, MSGCMD_LUN(msg), 0);
3573 			if (li == NULL)
3575 			slp->sl_Lnexus = li;
3580 			if (MSGCMD_LUN(msg) != li->li_lun)
3584 		if (slp->sl_Qnexus == NULL && li->li_nqio == 0)
3586 			if (!scsi_low_establish_ccb(ti, li, SCSI_LOW_UNKTAG))
3654 			struct lun_info *li;
3656 			li = cb->li;
3657 			TAILQ_INSERT_TAIL(&li->li_discq, cb, ccb_chain);
3660 			li->li_disc ++;
3725 	struct lun_info *li = cb->li;
3732 	etag = ffs(li->li_qtagbits);
3736 	li->li_qtagbits &= ~(1 << (etag - 1));
3741 	for (etag = li->li_qd ; li->li_qd < SCSI_LOW_MAXNEXUS; li->li_qd ++)
3742 		if (li->li_qtagarray[li->li_qd] == 0)
3745 	for (li->li_qd = 0; li->li_qd < etag; li->li_qd ++)
3746 		if (li->li_qtagarray[li->li_qd] == 0)
3752 	li->li_qtagarray[li->li_qd] ++;
3753 	cb->ccb_otag = (li->li_qd ++);
3762 	struct lun_info *li = cb->li;
3771 	if (etag >= sizeof(li->li_qtagbits) * NBBY)
3774 	li->li_qtagbits |= (1 << etag);
3782 	li->li_qtagarray[etag] --;
3796 	struct lun_info *li = cb->li;
3814 		TAILQ_REMOVE(&li->li_discq, cb, ccb_chain);
3815 		li->li_disc --;
3845 scsi_low_reset_nexus_lun(slp, li, fdone)
3847 	struct lun_info *li;
3852 	if (li == NULL)
3856 	for (cb = TAILQ_FIRST(&li->li_discq); cb != NULL; cb = ncb)
3885 scsi_low_calcf_lun(li)
3886 	struct lun_info *li;
3888 	struct targ_info *ti = li->li_ti;
3892 	if (li->li_flags_valid == SCSI_LOW_LUN_FLAGS_ALL_VALID)
3893 		cfgflags = li->li_cfgflags;
3897 	diskflags = li->li_diskflags & li->li_quirks;
3900 	li->li_flags &= ~SCSI_LOW_DISC;
3904 		li->li_flags |= SCSI_LOW_DISC;
3907 	li->li_flags |= SCSI_LOW_NOPARITY;
3911 		li->li_flags &= ~SCSI_LOW_NOPARITY;
3918 		li->li_flags |= SCSI_LOW_QTAG;
3919 		li->li_maxnexus = SCSI_LOW_MAXNEXUS;
3920 		li->li_maxnqio = li->li_maxnexus;
3924 		li->li_flags &= ~SCSI_LOW_QTAG;
3925 		li->li_maxnexus = 0;
3926 		li->li_maxnqio = li->li_maxnexus;
3930 	li->li_flags &= ~SCSI_LOW_LINK;
3933 		li->li_flags |= SCSI_LOW_LINK;
3936 	li->li_flags &= ~SCSI_LOW_SYNC;
3938 		li->li_flags |= SCSI_LOW_SYNC;
3943 		scsi_low_calcf_show(li);
4009 scsi_low_calcf_show(li)
4010 	struct lun_info *li;
4012 	struct targ_info *ti = li->li_ti;
4017 		ti->ti_id, li->li_lun,
4021 		li->li_flags, SCSI_LOW_BITS);
4035 	struct lun_info *li;
4069 			li = scsi_low_alloc_li(ti, lun, 1);
4071 			scsi_low_enqueue(slp, ti, li, cb,
4076 			if (li->li_state != SCSI_LOW_LUN_OK)
4122 scsi_low_test_abort(slp, ti, li)
4125 	struct lun_info *li;
4129 	if (li->li_disc > 1)
4131 		acb = TAILQ_FIRST(&li->li_discq);
4207 	struct lun_info *li;
4214 		li = slp->sl_Lnexus;
4219 		li = LIST_FIRST(&ti->ti_litab);
4220 		cb = TAILQ_FIRST(&li->li_discq);
4226 	    (u_long) ti, (u_long) li, (u_long) cb, slp->sl_nio);
4234 		if (li != NULL)
4236 			lun = li->li_lun;
4237 			flags = li->li_flags;
4238 			maxnqio = li->li_maxnqio;
4239 			nqio = li->li_nqio;