/* $OpenBSD: sd_scsi.c,v 1.14 2005/06/03 15:50:10 krw Exp $ */ /* $NetBSD: sd_scsi.c,v 1.8 1998/10/08 20:21:13 thorpej Exp $ */ /*- * Copyright (c) 1998 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum. * * 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 the NetBSD * Foundation, Inc. and its contributors. * 4. Neither the name of The NetBSD Foundation nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS * ``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 FOUNDATION OR CONTRIBUTORS * 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@dialix.oz.au) * 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@dialix.oz.au) Sept 1992 */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include struct sd_scsibus_mode_sense_data { struct scsi_mode_header header; struct scsi_blk_desc blk_desc; union scsi_disk_pages pages; }; int sd_scsibus_get_parms(struct sd_softc *, struct disk_parms *, int); int sd_scsibus_get_optparms(struct sd_softc *, struct disk_parms *, int); void sd_scsibus_flush(struct sd_softc *, int); const struct sd_ops sd_scsibus_ops = { sd_scsibus_get_parms, sd_scsibus_flush, }; int sd_scsibus_get_optparms(sd, dp, flags) struct sd_softc *sd; struct disk_parms *dp; int flags; { struct sd_scsibus_mode_sense_data scsi_sense; int error; dp->blksize = 512; dp->disksize = scsi_size(sd->sc_link, flags); if (dp->disksize == 0) return (SDGP_RESULT_OFFLINE); /* XXX? */ /* XXX * It is better to get the following params from the * mode sense page 6 only (optical device parameter page). * However, there are stupid optical devices which does NOT * support the page 6. Ask for all (0x3f) pages. Ghaa.... */ error = scsi_mode_sense(sd->sc_link, 0, 0x3f, (struct scsi_mode_header *)&scsi_sense, sizeof(scsi_sense), flags, 6000); if (error != 0) return (SDGP_RESULT_OFFLINE); /* XXX? */ dp->blksize = _3btol(scsi_sense.blk_desc.blklen); if (dp->blksize == 0) dp->blksize = 512; /* * Create a pseudo-geometry. */ dp->heads = 64; dp->sectors = 32; dp->cyls = dp->disksize / (dp->heads * dp->sectors); return (SDGP_RESULT_OK); } /* * Get the scsi driver to send a full inquiry to the * device and use the * results to fill out the disk parameter structure. */ int sd_scsibus_get_parms(sd, dp, flags) struct sd_softc *sd; struct disk_parms *dp; int flags; { struct sd_scsibus_mode_sense_data scsi_sense; struct scsi_mode_sense_buf buf; union scsi_disk_pages *sense_pages = NULL; u_int32_t blksize; u_int16_t rpm = 0; int page, error; dp->rot_rate = 3600; /* * If offline, the SDEV_MEDIA_LOADED flag will be * cleared by the caller if necessary. */ if (sd->type == T_OPTICAL) return (sd_scsibus_get_optparms(sd, dp, flags)); error = scsi_do_mode_sense(sd->sc_link, page = 4, &buf, (void **)&sense_pages, NULL, NULL, &blksize, sizeof(sense_pages->rigid_geometry), flags | SCSI_SILENT, NULL); if (error == 0) { if (sense_pages) { SC_DEBUG(sd->sc_link, SDEV_DB3, ("%d cyls, %d heads, %d precomp, %d red_write," " %d land_zone\n", _3btol(sense_pages->rigid_geometry.ncyl), sense_pages->rigid_geometry.nheads, _2btol(sense_pages->rigid_geometry.st_cyl_wp), _2btol(sense_pages->rigid_geometry.st_cyl_rwc), _2btol(sense_pages->rigid_geometry.land_zone))); /* * KLUDGE!! (for zone recorded disks) * give a number of sectors so that sec * trks * cyls * is <= disk_size * can lead to wasted space! THINK ABOUT THIS ! */ dp->heads = sense_pages->rigid_geometry.nheads; dp->cyls = _3btol(sense_pages->rigid_geometry.ncyl); rpm = _2btol(sense_pages->rigid_geometry.rpm); } dp->disksize = scsi_size(sd->sc_link, flags); if (dp->disksize == 0 || dp->heads == 0 || dp->cyls == 0) goto fake_it; /* XXX dubious on SCSI */ dp->sectors = dp->disksize / (dp->heads * dp->cyls); if (rpm) dp->rot_rate = rpm; dp->blksize = (blksize == 0) ? 512 : blksize; return (SDGP_RESULT_OK); } error = scsi_do_mode_sense(sd->sc_link, page = 5, &buf, (void **)&sense_pages, NULL, NULL, &blksize, sizeof(sense_pages->flex_geometry), flags | SCSI_SILENT, NULL); if (error == 0) { if (sense_pages) { dp->heads = sense_pages->flex_geometry.nheads; dp->cyls = _2btol(sense_pages->flex_geometry.ncyl); dp->sectors = sense_pages->flex_geometry.ph_sec_tr; dp->blksize = _2btol(sense_pages->flex_geometry.bytes_s); rpm = _2btol(scsi_sense.pages.flex_geometry.rpm); } if (dp->cyls == 0 || dp->heads == 0 || dp->cyls == 0) goto fake_it; dp->disksize = dp->heads * dp->cyls * dp->sectors; if (rpm) dp->rot_rate = rpm; if (blksize) dp->blksize = blksize; else if (dp->blksize == 0) dp->blksize = 512; return (SDGP_RESULT_OK); } /* T_RDIRECT defines page 6. */ if (sd->type != T_RDIRECT) goto fake_it; error = scsi_do_mode_sense(sd->sc_link, page = 6, &buf, (void **)&sense_pages, NULL, NULL, &blksize, sizeof(sense_pages->reduced_geometry), flags | SCSI_SILENT, NULL); if (error == 0) { dp->heads = 64; dp->sectors = 32; if (sense_pages) { dp->disksize = _4btol(sense_pages->reduced_geometry.sectors+1); dp->blksize = _2btol(sense_pages->reduced_geometry.bytes_s); dp->sectors = sense_pages->reduced_geometry.sectors[0]; } if (dp->disksize == 0 || dp->sectors == 0) goto fake_it; dp->cyls = dp->disksize / (dp->heads * dp->sectors); if (blksize) dp->blksize = blksize; if (dp->blksize == 0) dp->blksize = 512; return (SDGP_RESULT_OK); } fake_it: /* If we can get the disk size, fake a geometry. */ dp->disksize = scsi_size(sd->sc_link, flags); if (dp->disksize == 0) return (SDGP_RESULT_OFFLINE); SC_DEBUG(sd->sc_link, SDEV_DB1, ("error %d on pg %d, fake geometry.\n", error, page)); /* Use adaptec standard fictitious geometry. */ dp->heads = 64; dp->sectors = 32; dp->cyls = dp->disksize / (64 * 32); dp->blksize = 512; return (SDGP_RESULT_OK); } void sd_scsibus_flush(sd, flags) struct sd_softc *sd; int flags; { struct scsi_link *sc_link = sd->sc_link; struct scsi_synchronize_cache sync_cmd; /* * If the device is SCSI-2, issue a SYNCHRONIZE CACHE. * We issue with address 0 length 0, which should be * interpreted by the device as "all remaining blocks * starting at address 0". We ignore ILLEGAL REQUEST * in the event that the command is not supported by * the device, and poll for completion so that we know * that the cache has actually been flushed. * * Unless, that is, the device can't handle the SYNCHRONIZE CACHE * command, as indicated by our quirks flags. * * XXX What about older devices? */ if ((sc_link->scsi_version & SID_ANSII) >= 2 && (sc_link->quirks & SDEV_NOSYNCCACHE) == 0) { bzero(&sync_cmd, sizeof(sync_cmd)); sync_cmd.opcode = SYNCHRONIZE_CACHE; if (scsi_scsi_cmd(sc_link, (struct scsi_generic *)&sync_cmd, sizeof(sync_cmd), NULL, 0, SDRETRIES, 100000, NULL, flags|SCSI_IGNORE_ILLEGAL_REQUEST)) printf("%s: WARNING: cache synchronization failed\n", sd->sc_dev.dv_xname); else sd->flags |= SDF_FLUSHING; } }