/* $OpenBSD: scsiconf.c,v 1.254 2024/09/04 07:54:53 mglocker Exp $ */ /* $NetBSD: scsiconf.c,v 1.57 1996/05/02 01:09:01 neil Exp $ */ /* * Copyright (c) 1994 Charles Hannum. All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Charles Hannum. * 4. The name of the author may not be used to endorse or promote products * derived from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /* * Originally written by Julian Elischer (julian@tfs.com) * for TRW Financial Systems for use under the MACH(2.5) operating system. * * TRW Financial Systems, in accordance with their agreement with Carnegie * Mellon University, makes this software available to CMU to distribute * or use in any manner that they see fit as long as this message is kept with * the software. For this reason TFS also grants any other persons or * organisations permission to use or modify this software. * * TFS supplies this software to be publicly redistributed * on the understanding that TFS is not responsible for the correct * functioning of this software in any circumstances. * * Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992 */ #include "bio.h" #include "mpath.h" #include #include #include #include #include #include #include #include #include #include int scsibusmatch(struct device *, void *, void *); void scsibusattach(struct device *, struct device *, void *); int scsibusactivate(struct device *, int); int scsibusdetach(struct device *, int); int scsibussubmatch(struct device *, void *, void *); int scsibussubprint(void *, const char *); #if NBIO > 0 #include #include #include int scsibusbioctl(struct device *, u_long, caddr_t); #endif /* NBIO > 0 */ void scsi_get_target_luns(struct scsibus_softc *, int, struct scsi_lun_array *); void scsi_add_link(struct scsi_link *); void scsi_remove_link(struct scsi_link *); void scsi_print_link(struct scsi_link *); int scsi_probe_link(struct scsibus_softc *, int, int, int); int scsi_activate_link(struct scsi_link *, int); int scsi_detach_link(struct scsi_link *, int); int scsi_detach_bus(struct scsibus_softc *, int); void scsi_devid(struct scsi_link *); int scsi_devid_pg80(struct scsi_link *); int scsi_devid_pg83(struct scsi_link *); int scsi_devid_wwn(struct scsi_link *); int scsi_activate_bus(struct scsibus_softc *, int); int scsi_activate_target(struct scsibus_softc *, int, int); int scsi_activate_lun(struct scsibus_softc *, int, int, int); int scsi_autoconf = SCSI_AUTOCONF; const struct cfattach scsibus_ca = { sizeof(struct scsibus_softc), scsibusmatch, scsibusattach, scsibusdetach, scsibusactivate }; struct cfdriver scsibus_cd = { NULL, "scsibus", DV_DULL }; struct scsi_quirk_inquiry_pattern { struct scsi_inquiry_pattern pattern; u_int16_t quirks; }; const struct scsi_quirk_inquiry_pattern scsi_quirk_patterns[] = { {{T_CDROM, T_REMOV, "PLEXTOR", "CD-ROM PX-40TS", "1.01"}, SDEV_NOSYNC}, {{T_DIRECT, T_FIXED, "MICROP ", "1588-15MBSUN0669", ""}, SDEV_AUTOSAVE}, {{T_DIRECT, T_FIXED, "DEC ", "RZ55 (C) DEC", ""}, SDEV_AUTOSAVE}, {{T_DIRECT, T_FIXED, "EMULEX ", "MD21/S2 ESDI", "A00"}, SDEV_AUTOSAVE}, {{T_DIRECT, T_FIXED, "IBMRAID ", "0662S", ""}, SDEV_AUTOSAVE}, {{T_DIRECT, T_FIXED, "IBM ", "0663H", ""}, SDEV_AUTOSAVE}, {{T_DIRECT, T_FIXED, "IBM", "0664", ""}, SDEV_AUTOSAVE}, {{T_DIRECT, T_FIXED, "IBM ", "H3171-S2", ""}, SDEV_AUTOSAVE}, {{T_DIRECT, T_FIXED, "IBM ", "KZ-C", ""}, SDEV_AUTOSAVE}, /* Broken IBM disk */ {{T_DIRECT, T_FIXED, "" , "DFRSS2F", ""}, SDEV_AUTOSAVE}, {{T_DIRECT, T_FIXED, "QUANTUM ", "ELS85S ", ""}, SDEV_AUTOSAVE}, {{T_DIRECT, T_REMOV, "iomega", "jaz 1GB", ""}, SDEV_NOTAGS}, {{T_DIRECT, T_FIXED, "MICROP", "4421-07", ""}, SDEV_NOTAGS}, {{T_DIRECT, T_FIXED, "SEAGATE", "ST150176LW", "0002"}, SDEV_NOTAGS}, {{T_DIRECT, T_FIXED, "HP", "C3725S", ""}, SDEV_NOTAGS}, {{T_DIRECT, T_FIXED, "IBM", "DCAS", ""}, SDEV_NOTAGS}, {{T_SEQUENTIAL, T_REMOV, "SONY ", "SDT-5000 ", "3."}, SDEV_NOSYNC|SDEV_NOWIDE}, {{T_SEQUENTIAL, T_REMOV, "WangDAT ", "Model 1300 ", "02.4"}, SDEV_NOSYNC|SDEV_NOWIDE}, {{T_SEQUENTIAL, T_REMOV, "WangDAT ", "Model 2600 ", "01.7"}, SDEV_NOSYNC|SDEV_NOWIDE}, {{T_SEQUENTIAL, T_REMOV, "WangDAT ", "Model 3200 ", "02.2"}, SDEV_NOSYNC|SDEV_NOWIDE}, /* ATAPI device quirks */ {{T_CDROM, T_REMOV, "CR-2801TE", "", "1.07"}, ADEV_NOSENSE}, {{T_CDROM, T_REMOV, "CREATIVECD3630E", "", "AC101"}, ADEV_NOSENSE}, {{T_CDROM, T_REMOV, "FX320S", "", "q01"}, ADEV_NOSENSE}, {{T_CDROM, T_REMOV, "GCD-R580B", "", "1.00"}, ADEV_LITTLETOC}, {{T_CDROM, T_REMOV, "MATSHITA CR-574", "", "1.02"}, ADEV_NOCAPACITY}, {{T_CDROM, T_REMOV, "MATSHITA CR-574", "", "1.06"}, ADEV_NOCAPACITY}, {{T_CDROM, T_REMOV, "Memorex CRW-2642", "", "1.0g"}, ADEV_NOSENSE}, {{T_CDROM, T_REMOV, "SANYO CRD-256P", "", "1.02"}, ADEV_NOCAPACITY}, {{T_CDROM, T_REMOV, "SANYO CRD-254P", "", "1.02"}, ADEV_NOCAPACITY}, {{T_CDROM, T_REMOV, "SANYO CRD-S54P", "", "1.08"}, ADEV_NOCAPACITY}, {{T_CDROM, T_REMOV, "CD-ROM CDR-S1", "", "1.70"}, ADEV_NOCAPACITY}, /* Sanyo */ {{T_CDROM, T_REMOV, "CD-ROM CDR-N16", "", "1.25"}, ADEV_NOCAPACITY}, /* Sanyo */ {{T_CDROM, T_REMOV, "UJDCD8730", "", "1.14"}, ADEV_NODOORLOCK}, /* Acer */ }; int scsiprint(void *aux, const char *pnp) { /* Only "scsibus"es can attach to "scsi"s. */ if (pnp) printf("scsibus at %s", pnp); return UNCONF; } int scsibusmatch(struct device *parent, void *match, void *aux) { return 1; } /* * The routine called by the adapter boards to get all their * devices configured in. */ void scsibusattach(struct device *parent, struct device *self, void *aux) { struct scsibus_softc *sb = (struct scsibus_softc *)self; struct scsibus_attach_args *saa = aux; if (!cold) scsi_autoconf = 0; SLIST_INIT(&sb->sc_link_list); sb->sb_adapter_softc = saa->saa_adapter_softc; sb->sb_adapter = saa->saa_adapter; sb->sb_pool = saa->saa_pool; sb->sb_quirks = saa->saa_quirks; sb->sb_flags = saa->saa_flags; sb->sb_openings = saa->saa_openings; sb->sb_adapter_buswidth = saa->saa_adapter_buswidth; sb->sb_adapter_target = saa->saa_adapter_target; sb->sb_luns = saa->saa_luns; if (sb->sb_adapter_buswidth == 0) sb->sb_adapter_buswidth = 8; if (sb->sb_luns == 0) sb->sb_luns = 8; printf(": %d targets", sb->sb_adapter_buswidth); if (sb->sb_adapter_target < sb->sb_adapter_buswidth) printf(", initiator %d", sb->sb_adapter_target); if (saa->saa_wwpn != 0x0 && saa->saa_wwnn != 0x0) { printf(", WWPN %016llx, WWNN %016llx", saa->saa_wwpn, saa->saa_wwnn); } printf("\n"); /* Initialize shared data. */ scsi_init(); SLIST_INIT(&sb->sc_link_list); #if NBIO > 0 if (bio_register(&sb->sc_dev, scsibusbioctl) != 0) printf("%s: unable to register bio\n", sb->sc_dev.dv_xname); #endif /* NBIO > 0 */ scsi_probe_bus(sb); } int scsibusactivate(struct device *dev, int act) { struct scsibus_softc *sb = (struct scsibus_softc *)dev; return scsi_activate_bus(sb, act); } int scsibusdetach(struct device *dev, int type) { struct scsibus_softc *sb = (struct scsibus_softc *)dev; int error; #if NBIO > 0 bio_unregister(&sb->sc_dev); #endif /* NBIO > 0 */ error = scsi_detach_bus(sb, type); if (error != 0) return error; KASSERT(SLIST_EMPTY(&sb->sc_link_list)); return 0; } int scsibussubmatch(struct device *parent, void *match, void *aux) { struct cfdata *cf = match; struct scsi_attach_args *sa = aux; struct scsi_link *link = sa->sa_sc_link; if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != link->target) return 0; if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != link->lun) return 0; return (*cf->cf_attach->ca_match)(parent, match, aux); } /* * Print out autoconfiguration information for a subdevice. * * This is a slight abuse of 'standard' autoconfiguration semantics, * because 'print' functions don't normally print the colon and * device information. However, in this case that's better than * either printing redundant information before the attach message, * or having the device driver call a special function to print out * the standard device information. */ int scsibussubprint(void *aux, const char *pnp) { struct scsi_attach_args *sa = aux; if (pnp != NULL) printf("%s", pnp); scsi_print_link(sa->sa_sc_link); return UNCONF; } #if NBIO > 0 int scsibusbioctl(struct device *dev, u_long cmd, caddr_t addr) { struct scsibus_softc *sb = (struct scsibus_softc *)dev; struct sbioc_device *sdev; switch (cmd) { case SBIOCPROBE: sdev = (struct sbioc_device *)addr; return scsi_probe(sb, sdev->sd_target, sdev->sd_lun); case SBIOCDETACH: sdev = (struct sbioc_device *)addr; return scsi_detach(sb, sdev->sd_target, sdev->sd_lun, 0); default: return ENOTTY; } } #endif /* NBIO > 0 */ int scsi_activate(struct scsibus_softc *sb, int target, int lun, int act) { if (target == -1 && lun == -1) return scsi_activate_bus(sb, act); else if (lun == -1) return scsi_activate_target(sb, target, act); else return scsi_activate_lun(sb, target, lun, act); } int scsi_activate_bus(struct scsibus_softc *sb, int act) { struct scsi_link *link; int r, rv = 0; /* Activate all links on the bus. */ SLIST_FOREACH(link, &sb->sc_link_list, bus_list) { r = scsi_activate_link(link, act); if (r) rv = r; } return rv; } int scsi_activate_target(struct scsibus_softc *sb, int target, int act) { struct scsi_link *link; int r, rv = 0; /* Activate all links on the target. */ SLIST_FOREACH(link, &sb->sc_link_list, bus_list) { if (link->target == target) { r = scsi_activate_link(link, act); if (r) rv = r; } } return rv; } int scsi_activate_lun(struct scsibus_softc *sb, int target, int lun, int act) { struct scsi_link *link; /* Activate the (target, lun) link.*/ link = scsi_get_link(sb, target, lun); if (link == NULL) return 0; return scsi_activate_link(link, act); } int scsi_activate_link(struct scsi_link *link, int act) { struct device *dev; int rv = 0; dev = link->device_softc; switch (act) { case DVACT_DEACTIVATE: atomic_setbits_int(&link->state, SDEV_S_DYING); config_deactivate(dev); break; default: rv = config_suspend(dev, act); break; } return rv; } int scsi_probe(struct scsibus_softc *sb, int target, int lun) { if (target == -1 && lun == -1) return scsi_probe_bus(sb); else if (lun == -1) return scsi_probe_target(sb, target); else return scsi_probe_lun(sb, target, lun); } int scsi_probe_bus(struct scsibus_softc *sb) { int target, r, rv = 0; /* Probe all possible targets on bus. */ for (target = 0; target < sb->sb_adapter_buswidth; target++) { r = scsi_probe_target(sb, target); if (r != 0 && r != EINVAL) rv = r; } return rv; } int scsi_probe_target(struct scsibus_softc *sb, int target) { struct scsi_lun_array lunarray; int i, r, rv = 0; if (target < 0 || target == sb->sb_adapter_target) return EINVAL; scsi_get_target_luns(sb, target, &lunarray); if (lunarray.count == 0) return EINVAL; for (i = 0; i < lunarray.count; i++) { r = scsi_probe_link(sb, target, lunarray.luns[i], lunarray.dumbscan); if (r == EINVAL && lunarray.dumbscan == 1) return 0; if (r != 0 && r != EINVAL) rv = r; } return rv; } int scsi_probe_lun(struct scsibus_softc *sb, int target, int lun) { if (target < 0 || target == sb->sb_adapter_target || lun < 0) return EINVAL; /* Probe lun on target. *NOT* a dumbscan! */ return scsi_probe_link(sb, target, lun, 0); } int scsi_probe_link(struct scsibus_softc *sb, int target, int lun, int dumbscan) { struct scsi_attach_args sa; const struct scsi_quirk_inquiry_pattern *finger; struct scsi_inquiry_data *inqbuf, *usbinqbuf; struct scsi_link *link, *link0; struct cfdata *cf; int inqbytes, priority, rslt = 0; u_int16_t devquirks; /* Skip this slot if it is already attached and try the next LUN. */ if (scsi_get_link(sb, target, lun) != NULL) return 0; link = malloc(sizeof(*link), M_DEVBUF, M_NOWAIT); if (link == NULL) { SC_DEBUG(link, SDEV_DB2, ("malloc(scsi_link) failed.\n")); return EINVAL; } link->state = 0; link->target = target; link->lun = lun; link->openings = sb->sb_openings; link->node_wwn = link->port_wwn = 0; link->flags = sb->sb_flags; link->quirks = sb->sb_quirks; link->interpret_sense = scsi_interpret_sense; link->device_softc = NULL; link->bus = sb; memset(&link->inqdata, 0, sizeof(link->inqdata)); link->id = NULL; TAILQ_INIT(&link->queue); link->running = 0; link->pending = 0; link->pool = sb->sb_pool; SC_DEBUG(link, SDEV_DB2, ("scsi_link created.\n")); /* Ask the adapter if this will be a valid device. */ if (sb->sb_adapter->dev_probe != NULL && sb->sb_adapter->dev_probe(link) != 0) { if (lun == 0) { SC_DEBUG(link, SDEV_DB2, ("dev_probe(link) failed.\n")); rslt = EINVAL; } free(link, M_DEVBUF, sizeof(*link)); return rslt; } /* * If we haven't been given an io pool by now then fall back to * using link->openings. */ if (link->pool == NULL) { link->pool = malloc(sizeof(*link->pool), M_DEVBUF, M_NOWAIT); if (link->pool == NULL) { SC_DEBUG(link, SDEV_DB2, ("malloc(pool) failed.\n")); rslt = ENOMEM; goto bad; } scsi_iopool_init(link->pool, link, scsi_default_get, scsi_default_put); SET(link->flags, SDEV_OWN_IOPL); } /* * Tell drivers that are paying attention to avoid sync/wide/tags until * INQUIRY data has been processed and the quirks information is * complete. Some drivers set bits in quirks before we get here, so * just add NOTAGS, NOWIDE and NOSYNC. */ devquirks = link->quirks; SET(link->quirks, SDEV_NOSYNC | SDEV_NOWIDE | SDEV_NOTAGS); /* * Ask the device what it is. */ #ifdef SCSIDEBUG if (((sb->sc_dev.dv_unit < 32) && ((1U << sb->sc_dev.dv_unit) & scsidebug_buses)) && ((target < 32) && ((1U << target) & scsidebug_targets)) && ((lun < 32) && ((1U << lun) & scsidebug_luns))) SET(link->flags, scsidebug_level); #endif /* SCSIDEBUG */ if (lun == 0) { /* Clear any outstanding errors. */ scsi_test_unit_ready(link, TEST_READY_RETRIES, scsi_autoconf | SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE); } /* Now go ask the device all about itself. */ inqbuf = dma_alloc(sizeof(*inqbuf), PR_NOWAIT | PR_ZERO); if (inqbuf == NULL) { SC_DEBUG(link, SDEV_DB2, ("dma_alloc(inqbuf) failed.\n")); rslt = ENOMEM; goto bad; } rslt = scsi_inquire(link, inqbuf, scsi_autoconf | SCSI_SILENT); if (rslt != 0) { if (lun == 0) rslt = EINVAL; dma_free(inqbuf, sizeof(*inqbuf)); goto bad; } inqbytes = SID_SCSI2_HDRLEN + inqbuf->additional_length; memcpy(&link->inqdata, inqbuf, inqbytes); dma_free(inqbuf, sizeof(*inqbuf)); inqbuf = &link->inqdata; if (inqbytes < offsetof(struct scsi_inquiry_data, vendor)) memset(inqbuf->vendor, ' ', sizeof(inqbuf->vendor)); if (inqbytes < offsetof(struct scsi_inquiry_data, product)) memset(inqbuf->product, ' ', sizeof(inqbuf->product)); if (inqbytes < offsetof(struct scsi_inquiry_data, revision)) memset(inqbuf->revision, ' ', sizeof(inqbuf->revision)); if (inqbytes < offsetof(struct scsi_inquiry_data, extra)) memset(inqbuf->extra, ' ', sizeof(inqbuf->extra)); switch (inqbuf->device & SID_QUAL) { case SID_QUAL_RSVD: case SID_QUAL_BAD_LU: goto bad; case SID_QUAL_LU_OFFLINE: if (lun == 0 && (inqbuf->device & SID_TYPE) == T_NODEVICE) break; goto bad; case SID_QUAL_LU_OK: default: if ((inqbuf->device & SID_TYPE) == T_NODEVICE) goto bad; break; } scsi_devid(link); link0 = scsi_get_link(sb, target, 0); if (lun == 0 || link0 == NULL) ; else if (ISSET(link->flags, SDEV_UMASS)) ; else if (link->id != NULL && !DEVID_CMP(link0->id, link->id)) ; else if (dumbscan == 1 && memcmp(inqbuf, &link0->inqdata, sizeof(*inqbuf)) == 0) { /* The device doesn't distinguish between LUNs. */ SC_DEBUG(link, SDEV_DB1, ("IDENTIFY not supported.\n")); rslt = EINVAL; goto bad; } link->quirks = devquirks; /* Restore what the device wanted. */ finger = (const struct scsi_quirk_inquiry_pattern *)scsi_inqmatch( inqbuf, scsi_quirk_patterns, nitems(scsi_quirk_patterns), sizeof(scsi_quirk_patterns[0]), &priority); if (priority != 0) SET(link->quirks, finger->quirks); switch (SID_ANSII_REV(inqbuf)) { case SCSI_REV_0: case SCSI_REV_1: SET(link->quirks, SDEV_NOTAGS | SDEV_NOSYNC | SDEV_NOWIDE | SDEV_NOSYNCCACHE); break; case SCSI_REV_2: case SCSI_REV_SPC: case SCSI_REV_SPC2: if (!ISSET(inqbuf->flags, SID_CmdQue)) SET(link->quirks, SDEV_NOTAGS); if (!ISSET(inqbuf->flags, SID_Sync)) SET(link->quirks, SDEV_NOSYNC); if (!ISSET(inqbuf->flags, SID_WBus16)) SET(link->quirks, SDEV_NOWIDE); break; case SCSI_REV_SPC3: case SCSI_REV_SPC4: case SCSI_REV_SPC5: /* By this time SID_Sync and SID_WBus16 were obsolete. */ if (!ISSET(inqbuf->flags, SID_CmdQue)) SET(link->quirks, SDEV_NOTAGS); break; default: break; } /* * If the device can't use tags, >1 opening may confuse it. */ if (ISSET(link->quirks, SDEV_NOTAGS)) link->openings = 1; /* * note what BASIC type of device it is */ if (ISSET(inqbuf->dev_qual2, SID_REMOVABLE)) SET(link->flags, SDEV_REMOVABLE); sa.sa_sc_link = link; cf = config_search(scsibussubmatch, (struct device *)sb, &sa); if (cf == NULL) { scsibussubprint(&sa, sb->sc_dev.dv_xname); printf(" not configured\n"); goto bad; } /* * Braindead USB devices, especially some x-in-1 media readers, try to * 'help' by pretending any LUN is actually LUN 0 until they see a * different LUN used in a command. So do an INQUIRY on LUN 1 at this * point to prevent such helpfulness before it causes confusion. */ if (lun == 0 && ISSET(link->flags, SDEV_UMASS) && scsi_get_link(sb, target, 1) == NULL && sb->sb_luns > 1 && (usbinqbuf = dma_alloc(sizeof(*usbinqbuf), M_NOWAIT)) != NULL) { link->lun = 1; scsi_inquire(link, usbinqbuf, scsi_autoconf | SCSI_SILENT); link->lun = 0; dma_free(usbinqbuf, sizeof(*usbinqbuf)); } scsi_add_link(link); /* * Generate a TEST_UNIT_READY command. This gives drivers waiting for * valid quirks data a chance to set wide/sync/tag options * appropriately. It also clears any outstanding ACA conditions that * INQUIRY may leave behind. * * Do this now so that any messages generated by config_attach() do not * have negotiation messages inserted into their midst. */ scsi_test_unit_ready(link, TEST_READY_RETRIES, scsi_autoconf | SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE); config_attach((struct device *)sb, cf, &sa, scsibussubprint); return 0; bad: scsi_detach_link(link, DETACH_FORCE); return rslt; } int scsi_detach(struct scsibus_softc *sb, int target, int lun, int flags) { if (target == -1 && lun == -1) return scsi_detach_bus(sb, flags); else if (lun == -1) return scsi_detach_target(sb, target, flags); else return scsi_detach_lun(sb, target, lun, flags); } int scsi_detach_bus(struct scsibus_softc *sb, int flags) { struct scsi_link *link, *tmp; int r, rv = 0; /* Detach all links from bus. */ SLIST_FOREACH_SAFE(link, &sb->sc_link_list, bus_list, tmp) { r = scsi_detach_link(link, flags); if (r != 0 && r != ENXIO) rv = r; } return rv; } int scsi_detach_target(struct scsibus_softc *sb, int target, int flags) { struct scsi_link *link, *tmp; int r, rv = 0; /* Detach all links from target. */ SLIST_FOREACH_SAFE(link, &sb->sc_link_list, bus_list, tmp) { if (link->target == target) { r = scsi_detach_link(link, flags); if (r != 0 && r != ENXIO) rv = r; } } return rv; } int scsi_detach_lun(struct scsibus_softc *sb, int target, int lun, int flags) { struct scsi_link *link; /* Detach (target, lun) link. */ link = scsi_get_link(sb, target, lun); if (link == NULL) return EINVAL; return scsi_detach_link(link, flags); } int scsi_detach_link(struct scsi_link *link, int flags) { struct scsibus_softc *sb = link->bus; int rv; if (!ISSET(flags, DETACH_FORCE) && ISSET(link->flags, SDEV_OPEN)) return EBUSY; /* Detaching a device from scsibus is a five step process. */ /* 1. Wake up processes sleeping for an xs. */ if (link->pool != NULL) scsi_link_shutdown(link); /* 2. Detach the device. */ if (link->device_softc != NULL) { rv = config_detach(link->device_softc, flags); if (rv != 0) return rv; } /* 3. If it's using the openings io allocator, clean that up. */ if (link->pool != NULL && ISSET(link->flags, SDEV_OWN_IOPL)) { scsi_iopool_destroy(link->pool); free(link->pool, M_DEVBUF, sizeof(*link->pool)); } /* 4. Free up its state in the adapter. */ if (sb->sb_adapter->dev_free != NULL) sb->sb_adapter->dev_free(link); /* 5. Free up its state in the midlayer. */ if (link->id != NULL) devid_free(link->id); scsi_remove_link(link); free(link, M_DEVBUF, sizeof(*link)); return 0; } struct scsi_link * scsi_get_link(struct scsibus_softc *sb, int target, int lun) { struct scsi_link *link; SLIST_FOREACH(link, &sb->sc_link_list, bus_list) { if (link->target == target && link->lun == lun) return link; } return NULL; } void scsi_add_link(struct scsi_link *link) { SLIST_INSERT_HEAD(&link->bus->sc_link_list, link, bus_list); } void scsi_remove_link(struct scsi_link *link) { struct scsibus_softc *sb = link->bus; struct scsi_link *elm, *prev = NULL; SLIST_FOREACH(elm, &sb->sc_link_list, bus_list) { if (elm == link) { if (prev == NULL) SLIST_REMOVE_HEAD(&sb->sc_link_list, bus_list); else SLIST_REMOVE_AFTER(prev, bus_list); break; } prev = elm; } } void scsi_get_target_luns(struct scsibus_softc *sb, int target, struct scsi_lun_array *lunarray) { struct scsi_report_luns_data *report; struct scsi_link *link0; int i, nluns, rv = 0; /* LUN 0 *must* be present. */ scsi_probe_link(sb, target, 0, 0); link0 = scsi_get_link(sb, target, 0); if (link0 == NULL) { lunarray->count = 0; return; } /* Initialize dumbscan result. Just in case. */ report = NULL; for (i = 0; i < link0->bus->sb_luns; i++) lunarray->luns[i] = i; lunarray->count = link0->bus->sb_luns; lunarray->dumbscan = 1; /* * ATAPI, USB and pre-SPC (i.e. pre-SCSI-3) devices can't ask * for a report of valid LUNs. */ if ((link0->flags & (SDEV_UMASS | SDEV_ATAPI)) != 0 || SID_ANSII_REV(&link0->inqdata) < SCSI_REV_SPC) goto dumbscan; report = dma_alloc(sizeof(*report), PR_WAITOK); if (report == NULL) goto dumbscan; rv = scsi_report_luns(link0, REPORT_NORMAL, report, sizeof(*report), scsi_autoconf | SCSI_SILENT | SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE, 10000); if (rv != 0) goto dumbscan; /* * XXX In theory we should check if data is full, which * would indicate it needs to be enlarged and REPORT * LUNS tried again. Solaris tries up to 3 times with * larger sizes for data. */ /* Return the reported Type-0 LUNs. Type-0 only! */ lunarray->count = 0; lunarray->dumbscan = 0; nluns = _4btol(report->length) / RPL_LUNDATA_SIZE; for (i = 0; i < nluns; i++) { if (report->luns[i].lundata[0] != 0) continue; lunarray->luns[lunarray->count++] = report->luns[i].lundata[RPL_LUNDATA_T0LUN]; } dumbscan: if (report != NULL) dma_free(report, sizeof(*report)); } void scsi_strvis(u_char *dst, u_char *src, int len) { u_char last; /* Trim leading and trailing whitespace and NULs. */ while (len > 0 && (src[0] == ' ' || src[0] == '\t' || src[0] == '\n' || src[0] == '\0' || src[0] == 0xff)) ++src, --len; while (len > 0 && (src[len-1] == ' ' || src[len-1] == '\t' || src[len-1] == '\n' || src[len-1] == '\0' || src[len-1] == 0xff)) --len; last = 0xff; while (len > 0) { switch (*src) { case ' ': case '\t': case '\n': case '\0': case 0xff: /* Collapse whitespace and NULs to a single space. */ if (last != ' ') *dst++ = ' '; last = ' '; break; case '\\': /* Quote backslashes. */ *dst++ = '\\'; *dst++ = '\\'; last = '\\'; break; default: if (*src < 0x20 || *src >= 0x80) { /* Non-printable characters to octal. */ *dst++ = '\\'; *dst++ = ((*src & 0300) >> 6) + '0'; *dst++ = ((*src & 0070) >> 3) + '0'; *dst++ = ((*src & 0007) >> 0) + '0'; } else { /* Copy normal characters. */ *dst++ = *src; } last = *src; break; } ++src, --len; } *dst++ = 0; } void scsi_print_link(struct scsi_link *link) { char visbuf[65]; struct scsi_inquiry_data *inqbuf; u_int8_t *id; int i; printf(" targ %d lun %d: ", link->target, link->lun); inqbuf = &link->inqdata; scsi_strvis(visbuf, inqbuf->vendor, 8); printf("<%s, ", visbuf); scsi_strvis(visbuf, inqbuf->product, 16); printf("%s, ", visbuf); scsi_strvis(visbuf, inqbuf->revision, 4); printf("%s>", visbuf); #ifdef SCSIDEBUG if (ISSET(link->flags, SDEV_ATAPI)) printf(" ATAPI"); else if (SID_ANSII_REV(inqbuf) < SCSI_REV_SPC) printf(" SCSI/%d", SID_ANSII_REV(inqbuf)); else if (SID_ANSII_REV(inqbuf) == SCSI_REV_SPC) printf(" SCSI/SPC"); else printf(" SCSI/SPC-%d", SID_ANSII_REV(inqbuf) - 2); #endif /* SCSIDEBUG */ if (ISSET(link->flags, SDEV_REMOVABLE)) printf(" removable"); if (link->id != NULL && link->id->d_type != DEVID_NONE) { id = (u_int8_t *)(link->id + 1); switch (link->id->d_type) { case DEVID_NAA: printf(" naa."); break; case DEVID_EUI: printf(" eui."); break; case DEVID_T10: printf(" t10."); break; case DEVID_SERIAL: printf(" serial."); break; case DEVID_WWN: printf(" wwn."); break; } if (ISSET(link->id->d_flags, DEVID_F_PRINT)) { for (i = 0; i < link->id->d_len; i++) { if (id[i] == '\0' || id[i] == ' ') { /* skip leading blanks */ /* collapse multiple blanks into one */ if (i > 0 && id[i-1] != id[i]) printf("_"); } else if (id[i] < 0x20 || id[i] >= 0x80) { /* non-printable characters */ printf("~"); } else { /* normal characters */ printf("%c", id[i]); } } } else { for (i = 0; i < link->id->d_len; i++) printf("%02x", id[i]); } } #ifdef SCSIDEBUG printf("\n"); sc_print_addr(link); printf("state %u, luns %u, openings %u\n", link->state, link->bus->sb_luns, link->openings); sc_print_addr(link); printf("flags (0x%04x) ", link->flags); scsi_show_flags(link->flags, flagnames); printf("\n"); sc_print_addr(link); printf("quirks (0x%04x) ", link->quirks); scsi_show_flags(link->quirks, quirknames); #endif /* SCSIDEBUG */ } /* * Return a priority based on how much of the inquiry data matches * the patterns for the particular driver. */ const void * scsi_inqmatch(struct scsi_inquiry_data *inqbuf, const void *_base, int nmatches, int matchsize, int *bestpriority) { const unsigned char *base = (const unsigned char *)_base; const void *bestmatch; int removable; /* Include the qualifier to catch vendor-unique types. */ removable = ISSET(inqbuf->dev_qual2, SID_REMOVABLE) ? T_REMOV : T_FIXED; for (*bestpriority = 0, bestmatch = 0; nmatches--; base += matchsize) { struct scsi_inquiry_pattern *match = (void *)base; int priority, len; if (inqbuf->device != match->type) continue; if (removable != match->removable) continue; priority = 2; len = strlen(match->vendor); if (bcmp(inqbuf->vendor, match->vendor, len)) continue; priority += len; len = strlen(match->product); if (bcmp(inqbuf->product, match->product, len)) continue; priority += len; len = strlen(match->revision); if (bcmp(inqbuf->revision, match->revision, len)) continue; priority += len; #ifdef SCSIDEBUG printf("scsi_inqmatch: "); if (_base == &scsi_quirk_patterns) printf(" quirk "); else printf(" match "); printf("priority %d. %s %s <\"%s\", \"%s\", \"%s\">", priority, devicetypenames[(match->type & SID_TYPE)], (match->removable == T_FIXED) ? "T_FIXED" : "T_REMOV", match->vendor, match->product, match->revision); if (_base == &scsi_quirk_patterns) printf(" quirks: 0x%04x", ((struct scsi_quirk_inquiry_pattern *)match)->quirks ); printf("\n"); #endif /* SCSIDEBUG */ if (priority > *bestpriority) { *bestpriority = priority; bestmatch = base; } } return bestmatch; } void scsi_devid(struct scsi_link *link) { struct { struct scsi_vpd_hdr hdr; u_int8_t list[32]; } __packed *pg; size_t len; int pg80 = 0, pg83 = 0, i; if (link->id != NULL) return; pg = dma_alloc(sizeof(*pg), PR_WAITOK | PR_ZERO); if (SID_ANSII_REV(&link->inqdata) >= SCSI_REV_2) { if (scsi_inquire_vpd(link, pg, sizeof(*pg), SI_PG_SUPPORTED, scsi_autoconf) != 0) goto wwn; len = MIN(sizeof(pg->list), _2btol(pg->hdr.page_length)); for (i = 0; i < len; i++) { switch (pg->list[i]) { case SI_PG_SERIAL: pg80 = 1; break; case SI_PG_DEVID: pg83 = 1; break; } } if (pg83 && scsi_devid_pg83(link) == 0) goto done; if (pg80 && scsi_devid_pg80(link) == 0) goto done; } wwn: scsi_devid_wwn(link); done: dma_free(pg, sizeof(*pg)); } int scsi_devid_pg83(struct scsi_link *link) { struct scsi_vpd_devid_hdr dhdr, chdr; struct scsi_vpd_hdr *hdr = NULL; u_int8_t *pg = NULL, *id; int len, pos, rv, type; int idtype = 0; u_char idflags; hdr = dma_alloc(sizeof(*hdr), PR_WAITOK | PR_ZERO); rv = scsi_inquire_vpd(link, hdr, sizeof(*hdr), SI_PG_DEVID, scsi_autoconf); if (rv != 0) goto done; len = sizeof(*hdr) + _2btol(hdr->page_length); pg = dma_alloc(len, PR_WAITOK | PR_ZERO); rv = scsi_inquire_vpd(link, pg, len, SI_PG_DEVID, scsi_autoconf); if (rv != 0) goto done; pos = sizeof(*hdr); do { if (len - pos < sizeof(dhdr)) { rv = EIO; goto done; } memcpy(&dhdr, &pg[pos], sizeof(dhdr)); pos += sizeof(dhdr); if (len - pos < dhdr.len) { rv = EIO; goto done; } if (VPD_DEVID_ASSOC(dhdr.flags) == VPD_DEVID_ASSOC_LU) { type = VPD_DEVID_TYPE(dhdr.flags); switch (type) { case VPD_DEVID_TYPE_NAA: case VPD_DEVID_TYPE_EUI64: case VPD_DEVID_TYPE_T10: if (type >= idtype) { idtype = type; chdr = dhdr; id = &pg[pos]; } break; default: /* skip */ break; } } pos += dhdr.len; } while (idtype != VPD_DEVID_TYPE_NAA && len != pos); if (idtype > 0) { switch (VPD_DEVID_TYPE(chdr.flags)) { case VPD_DEVID_TYPE_NAA: idtype = DEVID_NAA; break; case VPD_DEVID_TYPE_EUI64: idtype = DEVID_EUI; break; case VPD_DEVID_TYPE_T10: idtype = DEVID_T10; break; } switch (VPD_DEVID_CODE(chdr.pi_code)) { case VPD_DEVID_CODE_ASCII: case VPD_DEVID_CODE_UTF8: idflags = DEVID_F_PRINT; break; default: idflags = 0; break; } link->id = devid_alloc(idtype, idflags, chdr.len, id); } else rv = ENODEV; done: if (pg) dma_free(pg, len); if (hdr) dma_free(hdr, sizeof(*hdr)); return rv; } int scsi_devid_pg80(struct scsi_link *link) { struct scsi_vpd_hdr *hdr = NULL; u_int8_t *pg = NULL; char *id; size_t idlen; int len, pglen, rv; hdr = dma_alloc(sizeof(*hdr), PR_WAITOK | PR_ZERO); rv = scsi_inquire_vpd(link, hdr, sizeof(*hdr), SI_PG_SERIAL, scsi_autoconf); if (rv != 0) goto freehdr; len = _2btol(hdr->page_length); if (len == 0) { rv = EINVAL; goto freehdr; } pglen = sizeof(*hdr) + len; pg = dma_alloc(pglen, PR_WAITOK | PR_ZERO); rv = scsi_inquire_vpd(link, pg, pglen, SI_PG_SERIAL, scsi_autoconf); if (rv != 0) goto free; idlen = sizeof(link->inqdata.vendor) + sizeof(link->inqdata.product) + len; id = malloc(idlen, M_TEMP, M_WAITOK); memcpy(id, link->inqdata.vendor, sizeof(link->inqdata.vendor)); memcpy(id + sizeof(link->inqdata.vendor), link->inqdata.product, sizeof(link->inqdata.product)); memcpy(id + sizeof(link->inqdata.vendor) + sizeof(link->inqdata.product), pg + sizeof(*hdr), len); link->id = devid_alloc(DEVID_SERIAL, DEVID_F_PRINT, sizeof(link->inqdata.vendor) + sizeof(link->inqdata.product) + len, id); free(id, M_TEMP, idlen); free: dma_free(pg, pglen); freehdr: dma_free(hdr, sizeof(*hdr)); return rv; } int scsi_devid_wwn(struct scsi_link *link) { u_int64_t wwnn; if (link->lun != 0 || link->node_wwn == 0) return EOPNOTSUPP; wwnn = htobe64(link->node_wwn); link->id = devid_alloc(DEVID_WWN, 0, sizeof(wwnn), (u_int8_t *)&wwnn); return 0; } struct devid * devid_alloc(u_int8_t type, u_int8_t flags, u_int8_t len, u_int8_t *id) { struct devid *d; d = malloc(sizeof(*d) + len, M_DEVBUF, M_WAITOK|M_CANFAIL); if (d == NULL) return NULL; d->d_type = type; d->d_flags = flags; d->d_len = len; d->d_refcount = 1; memcpy(d + 1, id, len); return d; } struct devid * devid_copy(struct devid *d) { d->d_refcount++; return d; } void devid_free(struct devid *d) { if (--d->d_refcount == 0) free(d, M_DEVBUF, sizeof(*d) + d->d_len); }