/* $OpenBSD: scsiconf.c,v 1.166 2010/09/08 00:58:05 dlg 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 #if NBIO > 0 #include #include #include #endif /* * Declarations */ int scsi_probedev(struct scsibus_softc *, int, int); void scsi_devid(struct scsi_link *); int scsi_devid_pg83(struct scsi_link *); 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 *); #if NBIO > 0 int scsibus_bioctl(struct device *, u_long, caddr_t); #endif struct cfattach scsibus_ca = { sizeof(struct scsibus_softc), scsibusmatch, scsibusattach, scsibusdetach, scsibusactivate }; struct cfdriver scsibus_cd = { NULL, "scsibus", DV_DULL }; #ifdef SCSIDEBUG int scsidebug_buses = SCSIDEBUG_BUSES; int scsidebug_targets = SCSIDEBUG_TARGETS; int scsidebug_luns = SCSIDEBUG_LUNS; int scsidebug_level = SCSIDEBUG_LEVEL; #endif int scsi_autoconf = SCSI_AUTOCONF; int scsibusprint(void *, const char *); void scsibus_printlink(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); const u_int8_t version_to_spc [] = { 0, /* 0x00: The device does not claim conformance to any standard. */ 1, /* 0x01: (Obsolete) SCSI-1 in olden times. */ 2, /* 0x02: (Obsolete) SCSI-2 in olden times. */ 3, /* 0x03: The device complies to ANSI INCITS 301-1997 (SPC-3). */ 2, /* 0x04: The device complies to ANSI INCITS 351-2001 (SPC-2). */ 3, /* 0x05: The device complies to ANSI INCITS 408-2005 (SPC-3). */ 4, /* 0x06: The device complies to SPC-4. */ 0, /* 0x07: RESERVED. */ }; int scsiprint(void *aux, const char *pnp) { /* only "scsibus"es can attach to "scsi"s; easy. */ 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; struct scsi_link *sc_link_proto = saa->saa_sc_link; if (!cold) scsi_autoconf = 0; sc_link_proto->bus = sb; sc_link_proto->scsibus = sb->sc_dev.dv_unit; sb->adapter_link = sc_link_proto; if (sb->adapter_link->adapter_buswidth == 0) sb->adapter_link->adapter_buswidth = 8; sb->sc_buswidth = sb->adapter_link->adapter_buswidth; if (sb->adapter_link->luns == 0) sb->adapter_link->luns = 8; printf(": %d targets", sb->sc_buswidth); if (sb->adapter_link->adapter_target < sb->sc_buswidth) printf(", initiator %d", sb->adapter_link->adapter_target); if (sb->adapter_link->port_wwn != 0x0 && sb->adapter_link->node_wwn != 0x0) { printf(", WWPN %016llx, WWNN %016llx", sb->adapter_link->port_wwn, sb->adapter_link->node_wwn); } printf("\n"); /* Initialize shared data. */ scsi_init(); SLIST_INIT(&sb->sc_link); #if NBIO > 0 if (bio_register(&sb->sc_dev, scsibus_bioctl) != 0) printf("%s: unable to register bio\n", sb->sc_dev.dv_xname); #endif scsi_probe_bus(sb); } int scsibusactivate(struct device *dev, int act) { struct scsibus_softc *sc = (struct scsibus_softc *)dev; return scsi_activate(sc, -1, -1, act); } int scsi_activate(struct scsibus_softc *sc, int target, int lun, int act) { if (target == -1 && lun == -1) return scsi_activate_bus(sc, act); if (target == -1) return 0; if (lun == -1) return scsi_activate_target(sc, target, act); return scsi_activate_lun(sc, target, lun, act); } int scsi_activate_bus(struct scsibus_softc *sc, int act) { int target, rv = 0, r; for (target = 0; target < sc->sc_buswidth; target++) { r = scsi_activate_target(sc, target, act); if (r) rv = r; } return (rv); } int scsi_activate_target(struct scsibus_softc *sc, int target, int act) { int lun, rv = 0, r; for (lun = 0; lun < sc->adapter_link->luns; lun++) { r = scsi_activate_lun(sc, target, lun, act); if (r) rv = r; } return (rv); } int scsi_activate_lun(struct scsibus_softc *sc, int target, int lun, int act) { struct scsi_link *link; struct device *dev; link = scsi_get_link(sc, target, lun); if (link == NULL) return (0); dev = link->device_softc; switch (act) { case DVACT_ACTIVATE: atomic_clearbits_int(&link->state, SDEV_S_DYING); #if NMPATH > 0 if (dev == NULL) mpath_path_activate(link); else #endif /* NMPATH */ config_activate(dev); break; case DVACT_QUIESCE: case DVACT_SUSPEND: case DVACT_RESUME: config_suspend(dev, act); break; case DVACT_DEACTIVATE: atomic_setbits_int(&link->state, SDEV_S_DYING); #if NMPATH > 0 if (dev == NULL) mpath_path_deactivate(link); else #endif /* NMPATH */ config_deactivate(dev); break; default: break; } return (0); } 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 error = scsi_detach_bus(sb, type); if (error != 0) return (error); KASSERT(SLIST_EMPTY(&sb->sc_link)); return (0); } int scsibussubmatch(struct device *parent, void *match, void *aux) { struct cfdata *cf = match; struct scsi_attach_args *sa = aux; struct scsi_link *sc_link = sa->sa_sc_link; if (cf->cf_loc[0] != -1 && cf->cf_loc[0] != sc_link->target) return (0); if (cf->cf_loc[1] != -1 && cf->cf_loc[1] != sc_link->lun) return (0); return ((*cf->cf_attach->ca_match)(parent, match, aux)); } #if NBIO > 0 int scsibus_bioctl(struct device *dev, u_long cmd, caddr_t addr) { struct scsibus_softc *sc = (struct scsibus_softc *)dev; struct sbioc_device *sdev; switch (cmd) { case SBIOCPROBE: sdev = (struct sbioc_device *)addr; if (sdev->sd_target == -1 && sdev->sd_lun == -1) return (scsi_probe_bus(sc)); /* specific lun and wildcard target is bad */ if (sdev->sd_target == -1) return (EINVAL); if (sdev->sd_lun == -1) return (scsi_probe_target(sc, sdev->sd_target)); return (scsi_probe_lun(sc, sdev->sd_target, sdev->sd_lun)); case SBIOCDETACH: sdev = (struct sbioc_device *)addr; if (sdev->sd_target == -1 && sdev->sd_lun == -1) return (scsi_detach_bus(sc, 0)); if (sdev->sd_target == -1) return (EINVAL); if (sdev->sd_lun == -1) return (scsi_detach_target(sc, sdev->sd_target, 0)); return (scsi_detach_lun(sc, sdev->sd_target, sdev->sd_lun, 0)); default: return (ENOTTY); } } #endif int scsi_probe_bus(struct scsibus_softc *sc) { struct scsi_link *alink = sc->adapter_link; int i; for (i = 0; i < alink->adapter_buswidth; i++) scsi_probe_target(sc, i); return (0); } int scsi_probe_target(struct scsibus_softc *sc, int target) { struct scsi_link *alink = sc->adapter_link; struct scsi_link *link; struct scsi_report_luns_data *report; int i, nluns, lun; if (scsi_probe_lun(sc, target, 0) == EINVAL) return (EINVAL); link = scsi_get_link(sc, target, 0); if (link == NULL) return (ENXIO); if ((link->flags & (SDEV_UMASS | SDEV_ATAPI)) == 0 && SCSISPC(link->inqdata.version) > 2) { report = malloc(sizeof(*report), M_TEMP, M_WAITOK); if (report == NULL) goto dumbscan; if (scsi_report_luns(link, REPORT_NORMAL, report, sizeof(*report), scsi_autoconf | SCSI_SILENT | SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE, 10000) != 0) { free(report, M_TEMP); 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. */ nluns = _4btol(report->length) / RPL_LUNDATA_SIZE; for (i = 0; i < nluns; i++) { if (report->luns[i].lundata[0] != 0) continue; lun = report->luns[i].lundata[RPL_LUNDATA_T0LUN]; if (lun == 0) continue; /* Probe the provided LUN. Don't check LUN 0. */ scsi_remove_link(sc, link); scsi_probe_lun(sc, target, lun); scsi_add_link(sc, link); } free(report, M_TEMP); return (0); } dumbscan: for (i = 1; i < alink->luns; i++) { if (scsi_probe_lun(sc, target, i) == EINVAL) break; } return (0); } int scsi_probe_lun(struct scsibus_softc *sc, int target, int lun) { struct scsi_link *alink = sc->adapter_link; if (target < 0 || target >= alink->adapter_buswidth || target == alink->adapter_target || lun < 0 || lun >= alink->luns) return (ENXIO); return (scsi_probedev(sc, target, lun)); } int scsi_detach_bus(struct scsibus_softc *sc, int flags) { struct scsi_link *alink = sc->adapter_link; int i, err, rv = 0; for (i = 0; i < alink->adapter_buswidth; i++) { err = scsi_detach_target(sc, i, flags); if (err != 0 && err != ENXIO) rv = err; } return (rv); } int scsi_detach_target(struct scsibus_softc *sc, int target, int flags) { struct scsi_link *alink = sc->adapter_link; int i, err, rv = 0; if (target < 0 || target >= alink->adapter_buswidth || target == alink->adapter_target) return (ENXIO); for (i = 0; i < alink->luns; i++) { /* nicer backwards? */ if (scsi_get_link(sc, target, i) == NULL) continue; err = scsi_detach_lun(sc, target, i, flags); if (err != 0 && err != ENXIO) rv = err; } return (rv); } int scsi_detach_lun(struct scsibus_softc *sc, int target, int lun, int flags) { struct scsi_link *alink = sc->adapter_link; struct scsi_link *link; int rv; if (target < 0 || target >= alink->adapter_buswidth || target == alink->adapter_target || lun < 0 || lun >= alink->luns) return (ENXIO); link = scsi_get_link(sc, target, lun); if (link == NULL) return (ENXIO); if (((flags & DETACH_FORCE) == 0) && (link->flags & SDEV_OPEN)) return (EBUSY); /* detaching a device from scsibus is a five step process... */ /* 1. wake up processes sleeping for an xs */ scsi_link_shutdown(link); /* 2. detach the device */ #if NMPATH > 0 if (link->device_softc == NULL) rv = mpath_path_detach(link, flags); else #endif /* NMPATH */ rv = config_detach(link->device_softc, flags); if (rv != 0) return (rv); /* 3. if its using the openings io allocator, clean it up */ if (ISSET(link->flags, SDEV_OWN_IOPL)) { scsi_iopool_destroy(link->pool); free(link->pool, M_DEVBUF); } /* 4. free up its state in the adapter */ if (alink->adapter->dev_free != NULL) alink->adapter->dev_free(link); /* 5. free up its state in the midlayer */ if (link->id != NULL) devid_free(link->id); scsi_remove_link(sc, link); free(link, M_DEVBUF); return (0); } struct scsi_link * scsi_get_link(struct scsibus_softc *sc, int target, int lun) { struct scsi_link *link; SLIST_FOREACH(link, &sc->sc_link, bus_list) if (link->target == target && link->lun == lun) return (link); return (NULL); } void scsi_add_link(struct scsibus_softc *sc, struct scsi_link *link) { SLIST_INSERT_HEAD(&sc->sc_link, link, bus_list); } void scsi_remove_link(struct scsibus_softc *sc, struct scsi_link *link) { SLIST_REMOVE(&sc->sc_link, link, scsi_link, bus_list); } 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 characters */ *dst++ = '\\'; *dst++ = '\\'; last = '\\'; break; default: if (*src < 0x20 || *src >= 0x80) { /* non-printable characters */ *dst++ = '\\'; *dst++ = ((*src & 0300) >> 6) + '0'; *dst++ = ((*src & 0070) >> 3) + '0'; *dst++ = ((*src & 0007) >> 0) + '0'; } else { /* normal characters */ *dst++ = *src; } last = *src; break; } ++src, --len; } *dst++ = 0; } 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 */ }; void scsibus_printlink(struct scsi_link *link) { char vendor[33], product[65], revision[17]; struct scsi_inquiry_data *inqbuf; u_int8_t type; int removable; char *dtype = NULL, *qtype = NULL; inqbuf = &link->inqdata; type = inqbuf->device & SID_TYPE; removable = inqbuf->dev_qual2 & SID_REMOVABLE ? 1 : 0; /* * Figure out basic device type and qualifier. */ switch (inqbuf->device & SID_QUAL) { case SID_QUAL_LU_OK: qtype = ""; break; case SID_QUAL_LU_OFFLINE: qtype = " offline"; break; case SID_QUAL_RSVD: panic("scsibusprint: qualifier == SID_QUAL_RSVD"); case SID_QUAL_BAD_LU: panic("scsibusprint: qualifier == SID_QUAL_BAD_LU"); default: qtype = ""; dtype = "vendor-unique"; break; } if (dtype == NULL) { switch (type) { case T_DIRECT: dtype = "direct"; break; case T_SEQUENTIAL: dtype = "sequential"; break; case T_PRINTER: dtype = "printer"; break; case T_PROCESSOR: dtype = "processor"; break; case T_CDROM: dtype = "cdrom"; break; case T_WORM: dtype = "worm"; break; case T_SCANNER: dtype = "scanner"; break; case T_OPTICAL: dtype = "optical"; break; case T_CHANGER: dtype = "changer"; break; case T_COMM: dtype = "communication"; break; case T_ENCLOSURE: dtype = "enclosure services"; break; case T_RDIRECT: dtype = "simplified direct"; break; case T_NODEVICE: panic("scsibusprint: device type T_NODEVICE"); default: dtype = "unknown"; break; } } scsi_strvis(vendor, inqbuf->vendor, 8); scsi_strvis(product, inqbuf->product, 16); scsi_strvis(revision, inqbuf->revision, 4); printf(" targ %d lun %d: <%s, %s, %s> ", link->target, link->lun, vendor, product, revision); if (link->flags & SDEV_ATAPI) printf("ATAPI"); else printf("SCSI%d", SCSISPC(inqbuf->version)); printf(" %d/%s %s%s", type, dtype, removable ? "removable" : "fixed", qtype); #if NMPATH > 0 if (link->id != NULL && link->id->d_type != DEVID_NONE) { u_int8_t *id = (u_int8_t *)(link->id + 1); int i; switch (link->id->d_type) { case DEVID_NAA: printf(" naa."); break; case DEVID_EUI: printf(" eui."); break; case DEVID_T10: printf(" t10."); 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] == ' ') 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]); } } #endif /* NMPATH > 0 */ } /* * 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 scsibusprint(void *aux, const char *pnp) { struct scsi_attach_args *sa = aux; if (pnp != NULL) printf("%s", pnp); scsibus_printlink(sa->sa_sc_link); return (UNCONF); } /* * Given a target and lun, ask the device what it is, and find the correct * driver table entry. * * Return 0 if further LUNs are possible, EINVAL if not. */ int scsi_probedev(struct scsibus_softc *scsi, int target, int lun) { const struct scsi_quirk_inquiry_pattern *finger; struct scsi_inquiry_data *inqbuf; struct scsi_attach_args sa; struct scsi_link *sc_link, *link0; struct cfdata *cf; int priority, rslt = 0; /* Skip this slot if it is already attached and try the next LUN. */ if (scsi_get_link(scsi, target, lun) != NULL) return (0); sc_link = malloc(sizeof(*sc_link), M_DEVBUF, M_NOWAIT); if (sc_link == NULL) return (EINVAL); *sc_link = *scsi->adapter_link; sc_link->target = target; sc_link->lun = lun; sc_link->interpret_sense = scsi_interpret_sense; TAILQ_INIT(&sc_link->queue); inqbuf = &sc_link->inqdata; SC_DEBUG(sc_link, SDEV_DB2, ("scsi_link created.\n")); /* ask the adapter if this will be a valid device */ if (scsi->adapter_link->adapter->dev_probe != NULL && scsi->adapter_link->adapter->dev_probe(sc_link) != 0) { if (lun == 0) rslt = EINVAL; goto free; } /* * If we havent been given an io pool by now then fall back to * using sc_link->openings. */ if (sc_link->pool == NULL) { sc_link->pool = malloc(sizeof(*sc_link->pool), M_DEVBUF, M_NOWAIT); if (sc_link->pool == NULL) { rslt = ENOMEM; goto bad; } scsi_iopool_init(sc_link->pool, sc_link, scsi_default_get, scsi_default_put); SET(sc_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. */ sc_link->quirks |= SDEV_NOSYNC | SDEV_NOWIDE | SDEV_NOTAGS; /* * Ask the device what it is */ #ifdef SCSIDEBUG if (((1 << sc_link->scsibus) & scsidebug_buses) && ((target < 32) && ((1 << target) & scsidebug_targets)) && ((lun < 32) && ((1 << lun) & scsidebug_luns))) sc_link->flags |= scsidebug_level; #endif /* SCSIDEBUG */ if (lun == 0) { /* Clear any outstanding errors. */ scsi_test_unit_ready(sc_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. */ rslt = scsi_inquire(sc_link, inqbuf, scsi_autoconf | SCSI_SILENT); if (rslt != 0) { SC_DEBUG(sc_link, SDEV_DB2, ("Bad LUN. rslt = %i\n", rslt)); if (lun == 0) rslt = EINVAL; goto bad; } switch (inqbuf->device & SID_QUAL) { case SID_QUAL_RSVD: case SID_QUAL_BAD_LU: case SID_QUAL_LU_OFFLINE: SC_DEBUG(sc_link, SDEV_DB1, ("Bad LUN. SID_QUAL = 0x%02x\n", inqbuf->device & SID_QUAL)); goto bad; case SID_QUAL_LU_OK: if ((inqbuf->device & SID_TYPE) == T_NODEVICE) { SC_DEBUG(sc_link, SDEV_DB1, ("Bad LUN. SID_TYPE = T_NODEVICE\n")); goto bad; } break; default: break; } scsi_devid(sc_link); link0 = scsi_get_link(scsi, target, 0); if (lun == 0 || link0 == NULL) ; else if (sc_link->flags & SDEV_UMASS) ; else if (sc_link->id != NULL && !DEVID_CMP(link0->id, sc_link->id)) ; else if (memcmp(inqbuf, &link0->inqdata, sizeof(*inqbuf)) == 0) { /* The device doesn't distinguish between LUNs. */ SC_DEBUG(sc_link, SDEV_DB1, ("IDENTIFY not supported.\n")); rslt = EINVAL; goto free_devid; } #if NMPATH > 0 /* should multipathing steal the link? */ if (mpath_path_attach(sc_link) == 0) { printf("%s: path to", scsi->sc_dev.dv_xname); scsibus_printlink(sc_link); printf("\n"); scsi_add_link(scsi, sc_link); return (0); } #endif /* NMPATH */ finger = (const struct scsi_quirk_inquiry_pattern *)scsi_inqmatch( inqbuf, scsi_quirk_patterns, sizeof(scsi_quirk_patterns)/sizeof(scsi_quirk_patterns[0]), sizeof(scsi_quirk_patterns[0]), &priority); /* * Based upon the inquiry flags we got back, and if we're * at SCSI-2 or better, remove some limiting quirks. */ if (SCSISPC(inqbuf->version) >= 2) { if ((inqbuf->flags & SID_CmdQue) != 0) sc_link->quirks &= ~SDEV_NOTAGS; if ((inqbuf->flags & SID_Sync) != 0) sc_link->quirks &= ~SDEV_NOSYNC; if ((inqbuf->flags & SID_WBus16) != 0) sc_link->quirks &= ~SDEV_NOWIDE; } else /* Older devices do not have SYNCHRONIZE CACHE capability. */ sc_link->quirks |= SDEV_NOSYNCCACHE; /* * Now apply any quirks from the table. */ if (priority != 0) sc_link->quirks |= finger->quirks; /* * note what BASIC type of device it is */ if ((inqbuf->dev_qual2 & SID_REMOVABLE) != 0) sc_link->flags |= SDEV_REMOVABLE; sa.sa_sc_link = sc_link; sa.sa_inqbuf = &sc_link->inqdata; if ((cf = config_search(scsibussubmatch, (struct device *)scsi, &sa)) == 0) { scsibusprint(&sa, scsi->sc_dev.dv_xname); printf(" not configured\n"); goto free_devid; } /* * 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 && (sc_link->flags & SDEV_UMASS) && scsi_get_link(scsi, target, 1) == NULL && sc_link->luns > 1) { struct scsi_inquiry_data tmpinq; sc_link->lun = 1; scsi_inquire(sc_link, &tmpinq, scsi_autoconf | SCSI_SILENT); sc_link->lun = 0; } scsi_add_link(scsi, sc_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(sc_link, TEST_READY_RETRIES, scsi_autoconf | SCSI_IGNORE_ILLEGAL_REQUEST | SCSI_IGNORE_NOT_READY | SCSI_IGNORE_MEDIA_CHANGE); config_attach((struct device *)scsi, cf, &sa, scsibusprint); return (0); free_devid: if (sc_link->id) devid_free(sc_link->id); bad: if (ISSET(sc_link->flags, SDEV_OWN_IOPL)) free(sc_link->pool, M_DEVBUF); if (scsi->adapter_link->adapter->dev_free != NULL) scsi->adapter_link->adapter->dev_free(sc_link); free: free(sc_link, M_DEVBUF); return (rslt); } /* * 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) { u_int8_t type; int removable; const void *bestmatch; const unsigned char *base = (const unsigned char *)_base; /* Include the qualifier to catch vendor-unique types. */ type = inqbuf->device; removable = 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 (type != 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; #if SCSIDEBUG printf("scsi_inqmatch: %d/%d/%d <%s, %s, %s>\n", priority, match->type, match->removable, match->vendor, match->product, match->revision); #endif 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; int pg80 = 0, pg83 = 0, i; size_t len; if (link->id != NULL) return; if (SCSISPC(link->inqdata.version) >= 2) { if (scsi_inquire_vpd(link, &pg, sizeof(pg), SI_PG_SUPPORTED, scsi_autoconf) != 0) return; 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) return; #ifdef notyet if (pg80 && scsi_devid_pg80(link) == 0) return; #endif } } int scsi_devid_pg83(struct scsi_link *link) { struct scsi_vpd_hdr hdr; struct scsi_vpd_devid_hdr dhdr, chdr; u_int8_t *pg, *id; int type, idtype = 0; u_char idflags; int len, pos; int rv; rv = scsi_inquire_vpd(link, &hdr, sizeof(hdr), SI_PG_DEVID, scsi_autoconf); if (rv != 0) return (rv); len = sizeof(hdr) + _2btol(hdr.page_length); pg = malloc(len, M_TEMP, M_WAITOK); rv = scsi_inquire_vpd(link, pg, len, SI_PG_DEVID, scsi_autoconf); if (rv != 0) goto err; pos = sizeof(hdr); do { if (len - pos < sizeof(dhdr)) { rv = EIO; goto err; } memcpy(&dhdr, &pg[pos], sizeof(dhdr)); pos += sizeof(dhdr); if (len - pos < dhdr.len) { rv = EIO; goto err; } 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; err: free(pg, M_TEMP); return (rv); } /* * scsi_minphys member of struct scsi_adapter for drivers which don't * need any specific routine. */ void scsi_minphys(struct buf *bp, struct scsi_link *sl) { minphys(bp); } 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); }