/* $NetBSD: scsipiconf.c,v 1.45 2019/03/28 10:44:29 kardel Exp $ */ /*- * Copyright (c) 1998, 1999, 2004 The NetBSD Foundation, Inc. * All rights reserved. * * This code is derived from software contributed to The NetBSD Foundation * by Charles M. Hannum; by Jason R. Thorpe of the Numerical Aerospace * Simulation Facility, NASA Ames Research Center. * * 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. * * 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@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 __KERNEL_RCSID(0, "$NetBSD: scsipiconf.c,v 1.45 2019/03/28 10:44:29 kardel Exp $"); #include #include #include #include #include #include #include #include #include /* Function pointers and stub routines for scsiverbose module */ int (*scsipi_print_sense)(struct scsipi_xfer *, int) = scsipi_print_sense_stub; void (*scsipi_print_sense_data)(struct scsi_sense_data *, int) = scsipi_print_sense_data_stub; int scsi_verbose_loaded = 0; int scsipi_print_sense_stub(struct scsipi_xfer * xs, int verbosity) { scsipi_load_verbose(); if (scsi_verbose_loaded) return scsipi_print_sense(xs, verbosity); else return 0; } void scsipi_print_sense_data_stub(struct scsi_sense_data *sense, int verbosity) { scsipi_load_verbose(); if (scsi_verbose_loaded) scsipi_print_sense_data(sense, verbosity); } int scsipi_command(struct scsipi_periph *periph, struct scsipi_generic *cmd, int cmdlen, u_char *data_addr, int datalen, int retries, int timeout, struct buf *bp, int flags) { struct scsipi_xfer *xs; int rc; /* * execute unlocked to allow waiting for memory */ xs = scsipi_make_xs_unlocked(periph, cmd, cmdlen, data_addr, datalen, retries, timeout, bp, flags); if (!xs) return (ENOMEM); mutex_enter(chan_mtx(periph->periph_channel)); rc = scsipi_execute_xs(xs); mutex_exit(chan_mtx(periph->periph_channel)); return rc; } /* * Load the scsiverbose module */ void scsipi_load_verbose(void) { if (scsi_verbose_loaded == 0) module_autoload("scsiverbose", MODULE_CLASS_MISC); } /* * allocate and init a scsipi_periph structure for a new device. */ struct scsipi_periph * scsipi_alloc_periph(int malloc_flag) { struct scsipi_periph *periph; u_int i; periph = malloc(sizeof(*periph), M_DEVBUF, malloc_flag|M_ZERO); if (periph == NULL) return NULL; periph->periph_dev = NULL; periph->periph_opcs = NULL; /* * Start with one command opening. The periph driver * will grow this if it knows it can take advantage of it. */ periph->periph_openings = 1; periph->periph_active = 0; for (i = 0; i < PERIPH_NTAGWORDS; i++) periph->periph_freetags[i] = 0xffffffff; TAILQ_INIT(&periph->periph_xferq); callout_init(&periph->periph_callout, 0); cv_init(&periph->periph_cv, "periph"); return periph; } /* * cleanup and free scsipi_periph structure */ void scsipi_free_periph(struct scsipi_periph *periph) { scsipi_free_opcodeinfo(periph); cv_destroy(&periph->periph_cv); free(periph, M_DEVBUF); } /* * Return a priority based on how much of the inquiry data matches * the patterns for the particular driver. */ const void * scsipi_inqmatch(struct scsipi_inquiry_pattern *inqbuf, const void *base, size_t nmatches, size_t matchsize, int *bestpriority) { u_int8_t type; const struct scsipi_inquiry_pattern *bestmatch; /* Include the qualifier to catch vendor-unique types. */ type = inqbuf->type; for (*bestpriority = 0, bestmatch = 0; nmatches--; base = (const char *)base + matchsize) { const struct scsipi_inquiry_pattern *match = base; int priority, len; if (type != match->type) continue; if (inqbuf->removable != match->removable) continue; priority = 2; len = strlen(match->vendor); if (memcmp(inqbuf->vendor, match->vendor, len)) continue; priority += len; len = strlen(match->product); if (memcmp(inqbuf->product, match->product, len)) continue; priority += len; len = strlen(match->revision); if (memcmp(inqbuf->revision, match->revision, len)) continue; priority += len; #ifdef SCSIPI_DEBUG printf("scsipi_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); } const char * scsipi_dtype(int type) { const char *dtype; switch (type) { case T_DIRECT: dtype = "disk"; break; case T_SEQUENTIAL: dtype = "tape"; break; case T_PRINTER: dtype = "printer"; break; case T_PROCESSOR: dtype = "processor"; break; case T_WORM: dtype = "worm"; break; case T_CDROM: dtype = "cdrom"; 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_IT8_1: case T_IT8_2: dtype = "graphic arts pre-press"; break; case T_STORARRAY: dtype = "storage array"; break; case T_ENCLOSURE: dtype = "enclosure services"; break; case T_SIMPLE_DIRECT: dtype = "simplified direct"; break; case T_OPTIC_CARD_RW: dtype = "optical card r/w"; break; case T_OBJECT_STORED: dtype = "object-based storage"; break; case T_NODEVICE: panic("scsipi_dtype: impossible device type"); default: dtype = "unknown"; break; } return (dtype); }