a0520fbaac
1. Support for fixed device configuration 2. Hoisted common code to scsi_driver 3. SCSI busses dynamically allocated at boot 4. Reorg'd for LKMs
1163 lines
26 KiB
C
1163 lines
26 KiB
C
/*
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* Written by Julian Elischer (julian@tfs.com)
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* for TRW Financial Systems for use under the MACH(2.5) operating system.
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*
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* TRW Financial Systems, in accordance with their agreement with Carnegie
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* Mellon University, makes this software available to CMU to distribute
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* or use in any manner that they see fit as long as this message is kept with
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* the software. For this reason TFS also grants any other persons or
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* organisations permission to use or modify this software.
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*
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* TFS supplies this software to be publicly redistributed
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* on the understanding that TFS is not responsible for the correct
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* functioning of this software in any circumstances.
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*
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* Ported to run under 386BSD by Julian Elischer (julian@tfs.com) Sept 1992
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*
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* New configuration setup: dufault@hda.com
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*
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* $Id: scsiconf.c,v 1.19 1995/02/14 06:18:06 phk Exp $
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*/
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#include <sys/types.h>
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/stat.h>
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#include <sys/malloc.h>
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#include <sys/devconf.h>
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#include <sys/conf.h>
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#include <machine/clock.h>
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#include "scbus.h"
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#include "sd.h"
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#include "st.h"
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#include "cd.h"
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#include "ch.h"
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#include "su.h"
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#include <scsi/scsi_all.h>
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#include <scsi/scsiconf.h>
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/* Extensible arrays: Use a realloc like implementation to permit
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* the arrays to be extend. These are set up to be moved out
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* of this file if needed elsewhere.
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*/
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struct extend_array
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{
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int nelem;
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void **ps;
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};
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static void *extend_alloc(size_t s)
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{
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void *p = malloc(s, M_DEVBUF, M_NOWAIT);
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if (!p)
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panic("extend_alloc: malloc failed.");
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return p;
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}
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static void extend_free(void *p) { free(p, M_DEVBUF); }
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#define EXTEND_CHUNK 8
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struct extend_array *extend_new(void)
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{
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struct extend_array *p = extend_alloc(sizeof(*p));
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p->nelem = 0;
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p->ps = 0;
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return p;
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}
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void *extend_set(struct extend_array *ea, int index, void *value)
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{
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if (index >= ea->nelem) {
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void **space;
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space = extend_alloc(sizeof(void *) * (index + EXTEND_CHUNK));
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bzero(space, sizeof(void *) * (index + EXTEND_CHUNK));
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/* Make sure we have something to copy before we copy it */
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if (ea->nelem) {
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bcopy(ea->ps, space, sizeof(void *) * ea->nelem);
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extend_free(ea->ps);
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}
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ea->ps = space;
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ea->nelem = index + EXTEND_CHUNK;
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}
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if (ea->ps[index]) {
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printf("extend_set: entry %d already has storage.\n", index);
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return 0;
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}
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else
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ea->ps[index] = value;
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return value;
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}
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void *extend_get(struct extend_array *ea, int index)
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{
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if (index >= ea->nelem || index < 0)
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return 0;
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return ea->ps[index];
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}
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void extend_release(struct extend_array *ea, int index)
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{
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void *p = extend_get(ea, index);
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if (p) {
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ea->ps[index] = 0;
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}
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}
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/*
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* This extend_array holds an array of "scsibus_data" pointers.
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* One of these is allocated and filled in for each scsi bus.
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* it holds pointers to allow the scsi bus to get to the driver
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* That is running each LUN on the bus
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* it also has a template entry which is the prototype struct
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* supplied by the adapter driver, this is used to initialise
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* the others, before they have the rest of the fields filled in
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*/
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struct extend_array *scbusses;
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/*
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* The structure of known drivers for autoconfiguration
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*/
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struct scsidevs {
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u_int32 type;
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boolean removable;
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char *manufacturer;
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char *model;
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char *version;
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char *devname;
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char flags; /* 1 show my comparisons during boot(debug) */
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#ifdef NEW_SCSICONF
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u_int16 quirks;
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void *devmodes;
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#endif
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};
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#define SC_SHOWME 0x01
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#define SC_ONE_LU 0x00
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#define SC_MORE_LUS 0x02
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static struct scsidevs unknowndev =
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{
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T_UNKNOWN, 0, "*", "*", "*",
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"uk", SC_MORE_LUS
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};
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#ifdef NEW_SCSICONF
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static st_modes mode_tandberg3600 =
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{
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{0, 0, 0}, /* minor 0,1,2,3 */
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{0, ST_Q_FORCE_VAR_MODE, QIC_525}, /* minor 4,5,6,7 */
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{0, 0, QIC_150}, /* minor 8,9,10,11 */
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{0, 0, QIC_120} /* minor 12,13,14,15 */
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};
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static st_modes mode_archive2525 =
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{
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{0, ST_Q_SNS_HLP, 0}, /* minor 0,1,2,3 */
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{0, ST_Q_SNS_HLP, QIC_525}, /* minor 4,5,6,7 */
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{0, 0, QIC_150}, /* minor 8,9,10,11 */
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{0, 0, QIC_120} /* minor 12,13,14,15 */
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};
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static st_modes mode_archive150 =
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{
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{0, 0, 0}, /* minor 0,1,2,3 */
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{0, 0, QIC_150}, /* minor 4,5,6,7 */
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{0, 0, QIC_120}, /* minor 8,9,10,11 */
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{0, 0, QIC_24} /* minor 12,13,14,15 */
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};
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static st_modes mode_wangtek5525 =
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{
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{0, 0, 0}, /* minor 0,1,2,3 */
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{0, ST_Q_BLKSIZ, QIC_525}, /* minor 4,5,6,7 */
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{0, 0, QIC_150}, /* minor 8,9,10,11 */
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{0, 0, QIC_120} /* minor 12,13,14,15 */
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};
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static st_modes mode_wangdat1300 =
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{
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{0, 0, 0}, /* minor 0,1,2,3 */
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{512, ST_Q_FORCE_FIXED_MODE, DDS}, /* minor 4,5,6,7 */
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{1024, ST_Q_FORCE_FIXED_MODE, DDS}, /* minor 8,9,10,11 */
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{0, ST_Q_FORCE_VAR_MODE, DDS} /* minor 12,13,14,15 */
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};
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static st_modes mode_unktape =
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{
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{512, ST_Q_FORCE_FIXED_MODE, 0}, /* minor 0,1,2,3 */
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{512, ST_Q_FORCE_FIXED_MODE, QIC_24}, /* minor 4,5,6,7 */
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{0, ST_Q_FORCE_VAR_MODE, HALFINCH_1600}, /* minor 8,9,10,11 */
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{0, ST_Q_FORCE_VAR_MODE, HALFINCH_6250} /* minor 12,13,14,15 */
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};
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#endif /* NEW_SCSICONF */
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static struct scsidevs knowndevs[] =
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#ifdef NEW_SCSICONF
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{
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#if NSD > 0
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{
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T_DIRECT, T_FIXED, "MAXTOR", "XT-4170S", "B5A",
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"mx1", SC_ONE_LU
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},
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{
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T_DIRECT, T_FIXED, "*", "*", "*",
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"sd", SC_ONE_LU
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},
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#endif /* NSD */
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#if NST > 0
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{
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T_SEQUENTIAL, T_REMOV, "TANDBERG", " TDC 3600", "*",
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"st", SC_ONE_LU, ST_Q_NEEDS_PAGE_0, mode_tandberg3600
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},
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{
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T_SEQUENTIAL, T_REMOV, "ARCHIVE", "VIPER 2525*", "-005",
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"st", SC_ONE_LU, 0, mode_archive2525
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},
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{
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T_SEQUENTIAL, T_REMOV, "ARCHIVE", "VIPER 150", "*",
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"st", SC_ONE_LU, ST_Q_NEEDS_PAGE_0, mode_archive150
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},
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{
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T_SEQUENTIAL, T_REMOV, "WANGTEK", "5525ES*", "*",
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"st", SC_ONE_LU, 0, mode_wangtek5525
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},
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{
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T_SEQUENTIAL, T_REMOV, "WangDAT", "Model 1300", "*",
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"st", SC_ONE_LU, 0, mode_wangdat1300
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},
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{
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T_SEQUENTIAL, T_REMOV, "*", "*", "*",
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"st", SC_ONE_LU, 0, mode_unktape
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},
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#endif /* NST */
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#if NCH > 0
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{
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T_CHANGER, T_REMOV, "*", "*", "*",
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"ch", SC_ONE_LU
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},
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#endif /* NCH */
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#if NCD > 0
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#ifndef UKTEST /* make cdroms unrecognised to test the uk driver */
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{
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T_READONLY, T_REMOV, "SONY", "CD-ROM CDU-8012", "3.1a",
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"cd", SC_ONE_LU
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},
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{
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T_READONLY, T_REMOV, "PIONEER", "CD-ROM DRM-600", "*",
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"cd", SC_MORE_LUS
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},
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#endif
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#endif /* NCD */
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{
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0
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}
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};
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#else
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{
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#if NSD > 0
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{
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T_DIRECT, T_FIXED, "standard", "any"
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,"any", "sd", SC_ONE_LU
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},
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{
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T_DIRECT, T_FIXED, "MAXTOR ", "XT-4170S "
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,"B5A ", "mx1", SC_ONE_LU
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},
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#endif /* NSD */
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#if NST > 0
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{
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T_SEQUENTIAL, T_REMOV, "standard", "any"
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,"any", "st", SC_ONE_LU
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},
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#endif /* NST */
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#if NCH > 0
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{
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T_CHANGER, T_REMOV, "standard", "any"
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,"any", "ch", SC_ONE_LU
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},
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#endif /* NCH */
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#if NCD > 0
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#ifndef UKTEST /* make cdroms unrecognised to test the uk driver */
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{
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T_READONLY, T_REMOV, "SONY ", "CD-ROM CDU-8012 "
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,"3.1a", "cd", SC_ONE_LU
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},
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{
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T_READONLY, T_REMOV, "PIONEER ", "CD-ROM DRM-600 "
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,"any", "cd", SC_MORE_LUS
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},
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#endif
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#endif /* NCD */
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{
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0
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}
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};
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#endif /* NEW_SCSICONF */
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/*
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* Declarations
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*/
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struct scsidevs *scsi_probedev();
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struct scsidevs *scsi_selectdev();
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errval scsi_probe_bus(int bus, int targ, int lun);
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/* XXX dufault@hda.com
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* This scsi_device doesn't have the scsi_data_size.
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* This is used during probe and used to be "probe_switch".
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*/
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struct scsi_device inval_switch =
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{
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NULL,
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NULL,
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NULL,
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NULL,
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"??",
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0,
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{0, 0},
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NULL,
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0
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};
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/*
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* XXX
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* This is BOGUS.
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* We do this because it was easier than adding the requisite information
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* to the scsi_link structure and modifying everything to use that.
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* Someday, we will do just that, and users will be able to nail down their
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* preferred SCSI ids.
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*
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*/
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struct kern_devconf kdc_scbus0 = {
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0, 0, 0, /* filled in by dev_attach */
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"scbus", 0, MDDC_SCBUS,
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0, 0, 0, 0, /* no external data */
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0, /* no parent */
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0, /* no parentdata */
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DC_BUSY, /* busses are always busy */
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"SCSI subsystem"
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};
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static int free_bus; /* First bus not wired down */
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extern void ukinit();
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static struct scsi_device *device_list;
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static int next_free_type = T_NTYPES;
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/* Register new functions at the head of the list. That allows
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* you to replace a standard driver with a new one.
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*
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* You can't register the exact device (the same in memory structure)
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* more than once - the list links are part of the structure. That is
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* prevented.
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*
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* Unusual devices should always be registered as type "-1". Then
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* the next available type number will be allocated for it.
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*
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* Be careful not to register a type as 0 unless you really mean to
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* replace the disk driver.
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*/
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void
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scsi_device_register(struct scsi_device *sd)
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{
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/* Not only is it pointless to add the same device more than once
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* but it will also screw up the list.
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*/
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struct scsi_device *is_there;
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for (is_there = device_list; is_there; is_there = is_there->next)
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if (is_there == sd)
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return;
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if (sd->type == -1)
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sd->type = next_free_type++;
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sd->next = device_list;
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device_list = sd;
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if (sd->links == 0)
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sd->links = extend_new();
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}
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static struct scsi_device *
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scsi_device_lookup(int type)
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{
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extern struct scsi_device uk_switch;
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struct scsi_device *sd;
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for (sd = device_list; sd; sd = sd->next)
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if (sd->type == type)
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return sd;
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return &uk_switch;
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}
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static struct scsi_device *
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scsi_device_lookup_by_name(char *name)
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{
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extern struct scsi_device uk_switch;
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struct scsi_device *sd;
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for (sd = device_list; sd; sd = sd->next)
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if (strcmp(sd->name, name) == 0)
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return sd;
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return &uk_switch;
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}
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/* Macro that lets us know something is specified.
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*/
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#define IS_SPECIFIED(ARG) (ARG != SCCONF_UNSPEC && ARG != SCCONF_ANY)
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/* scsi_init: Do all the one time processing. This initializes the
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* type drivers and initializes the configuration.
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*/
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static void
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scsi_init(void)
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{
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static int done = 0;
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if(!done) {
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int i;
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done = 1;
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scbusses = extend_new();
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dev_attach(&kdc_scbus0);
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/* First call all type initialization functions.
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*/
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ukinit();
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for (i = 0; scsi_tinit[i]; i++)
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(*scsi_tinit[i])();
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/* Lowest free bus for auto-configure is one
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* more than the first one not
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* specified in config:
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*/
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for (i = 0; scsi_cinit[i].driver; i++)
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if (IS_SPECIFIED(scsi_cinit[i].unit) &&
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free_bus <= scsi_cinit[i].unit)
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free_bus = scsi_cinit[i].unit + 1;
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/* Lowest free unit for each type for auto-configure is one
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* more than the first one not specified in the config file:
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*/
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for (i = 0; scsi_dinit[i].name; i++) {
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struct scsi_device_config *sdc = scsi_dinit + i;
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struct scsi_device *sd =
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scsi_device_lookup_by_name(sdc->name);
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/* This is a little tricky: We don't want "sd 4" to match as
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* a wired down device, but we do want "sd 4 target 5" or
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* even "sd 4 scbus 1" to match.
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*/
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if (IS_SPECIFIED(sdc->unit) &&
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(IS_SPECIFIED(sdc->target) || IS_SPECIFIED(sdc->cunit)) &&
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sd->free_unit <= sdc->unit)
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sd->free_unit = sdc->unit + 1;
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}
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}
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}
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/* Feel free to take this out when everyone is sure this config
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* code works well:
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*/
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#define CONFIGD() printf(" config'd at ")
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/* scsi_bus_conf: Figure out which bus this is. If it is wired in config
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* use that. Otherwise use the next free one.
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*/
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static int
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scsi_bus_conf(sc_link_proto)
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struct scsi_link *sc_link_proto;
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{
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int i;
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int bus;
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/* Which bus is this? Try to find a match in the "scsi_cinit"
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* table. If it isn't wired down auto-configure it at the
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* next available bus.
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*/
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printf("scbus");
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bus = SCCONF_UNSPEC;
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for (i = 0; scsi_cinit[i].driver; i++) {
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if (IS_SPECIFIED(scsi_cinit[i].unit))
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{
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if (!strcmp(sc_link_proto->adapter->name, scsi_cinit[i].driver) &&
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(sc_link_proto->adapter_unit == scsi_cinit[i].unit) )
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{
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CONFIGD();
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bus = scsi_cinit[i].bus;
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break;
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}
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}
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}
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if (bus == SCCONF_UNSPEC)
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bus = free_bus++;
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printf("%d: ", bus);
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return bus;
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}
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|
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/* scsi_assign_unit: Look through the structure generated by config.
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* See if there is a fixed assignment for this unit. If there isn't,
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* assign the next free unit.
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*/
|
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static int
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scsi_assign_unit(struct scsi_link *sc_link)
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{
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int i;
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int found;
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printf("%s", sc_link->device->name);
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found = 0;
|
|
for (i = 0; scsi_dinit[i].name; i++) {
|
|
if ((strcmp(sc_link->device->name, scsi_dinit[i].name) == 0) &&
|
|
sc_link->target == scsi_dinit[i].target &&
|
|
(
|
|
(sc_link->lun == scsi_dinit[i].lun) ||
|
|
(sc_link->lun == 0 && scsi_dinit[i].lun == SCCONF_UNSPEC)
|
|
) &&
|
|
sc_link->scsibus == scsi_dinit[i].cunit) {
|
|
CONFIGD();
|
|
sc_link->dev_unit = scsi_dinit[i].unit;
|
|
found = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (!found)
|
|
sc_link->dev_unit = sc_link->device->free_unit++;
|
|
|
|
printf("%d: ", sc_link->dev_unit);
|
|
|
|
return sc_link->dev_unit;
|
|
}
|
|
|
|
/*
|
|
* The routine called by the adapter boards to get all their
|
|
* devices configured in.
|
|
*/
|
|
void
|
|
scsi_attachdevs(sc_link_proto)
|
|
struct scsi_link *sc_link_proto;
|
|
{
|
|
int scsibus;
|
|
struct scsibus_data *scbus;
|
|
|
|
scsi_init();
|
|
|
|
if ( (scsibus = scsi_bus_conf(sc_link_proto)) == -1) {
|
|
return;
|
|
}
|
|
sc_link_proto->scsibus = scsibus;
|
|
scbus = malloc(sizeof(struct scsibus_data), M_TEMP, M_NOWAIT);
|
|
if(scbus == 0 || extend_set(scbusses, scsibus, scbus) == 0) {
|
|
panic("scsi_attachdevs: malloc\n");
|
|
}
|
|
bzero(scbus, sizeof(struct scsibus_data));
|
|
scbus->adapter_link = sc_link_proto;
|
|
#if defined(SCSI_DELAY) && SCSI_DELAY > 2
|
|
printf("%s%d waiting for scsi devices to settle\n",
|
|
sc_link_proto->adapter->name, sc_link_proto->adapter_unit);
|
|
#else /* SCSI_DELAY > 2 */
|
|
#undef SCSI_DELAY
|
|
#define SCSI_DELAY 2
|
|
#endif /* SCSI_DELAY */
|
|
DELAY(1000000 * SCSI_DELAY);
|
|
scsi_probe_bus(scsibus,-1,-1);
|
|
}
|
|
|
|
/*
|
|
* Probe the requested scsi bus. It must be already set up.
|
|
* -1 requests all set up scsi busses.
|
|
* targ and lun optionally narrow the search if not -1
|
|
*/
|
|
errval
|
|
scsi_probe_busses(int bus, int targ, int lun)
|
|
{
|
|
if (bus == -1) {
|
|
for(bus = 0; bus < scbusses->nelem; bus++) {
|
|
scsi_probe_bus(bus, targ, lun);
|
|
}
|
|
return 0;
|
|
} else {
|
|
return scsi_probe_bus(bus, targ, lun);
|
|
}
|
|
}
|
|
|
|
/* scsi_alloc_unit: Register a scsi_data pointer for a given
|
|
* unit in a given scsi_device structure.
|
|
*
|
|
* XXX dufault@hda.com: I still don't like the way this reallocs stuff -
|
|
* but at least now it is collected in one place instead of existing
|
|
* in multiple type drivers. I'd like it better if we had it do a
|
|
* second pass after it knew the sizes of everything and set up everything
|
|
* at once.
|
|
*/
|
|
static int
|
|
scsi_alloc_unit(struct scsi_link *sc_link)
|
|
{
|
|
u_int32 unit;
|
|
struct scsi_link **strealloc;
|
|
struct scsi_data *sd;
|
|
struct scsi_device *dsw;
|
|
|
|
unit = sc_link->dev_unit;
|
|
dsw = sc_link->device;
|
|
|
|
/*
|
|
* allocate the per unit data area
|
|
*/
|
|
if (dsw->sizeof_scsi_data)
|
|
{
|
|
sd = malloc(dsw->sizeof_scsi_data, M_DEVBUF, M_NOWAIT);
|
|
if (!sd) {
|
|
printf("%s%ld: malloc failed for scsi_data\n",
|
|
sc_link->device->name, unit);
|
|
return 0;
|
|
}
|
|
bzero(sd, dsw->sizeof_scsi_data);
|
|
}
|
|
else
|
|
sd = 0;
|
|
|
|
sc_link->sd = sd;
|
|
|
|
if (extend_set(dsw->links, unit, (void *)sc_link) == 0) {
|
|
printf("%s%ld: Can't store link pointer.\n",
|
|
sc_link->device->name, unit);
|
|
free(sd, M_DEVBUF);
|
|
return 0;
|
|
}
|
|
|
|
return 1;
|
|
}
|
|
|
|
static void
|
|
scsi_free_unit(struct scsi_link *sc_link)
|
|
{
|
|
if (sc_link->sd)
|
|
{
|
|
free(sc_link->sd, M_DEVBUF);
|
|
sc_link->sd = 0;
|
|
}
|
|
extend_release(sc_link->device->links, sc_link->dev_unit);
|
|
}
|
|
|
|
/*
|
|
* Probe the requested scsi bus. It must be already set up.
|
|
* targ and lun optionally narrow the search if not -1
|
|
*/
|
|
errval
|
|
scsi_probe_bus(int bus, int targ, int lun)
|
|
{
|
|
struct scsibus_data *scsi ;
|
|
int maxtarg,mintarg,maxlun,minlun;
|
|
struct scsi_link *sc_link_proto;
|
|
u_int8 scsi_addr ;
|
|
struct scsidevs *bestmatch = NULL;
|
|
struct scsi_link *sc_link = NULL;
|
|
boolean maybe_more;
|
|
|
|
if ((bus < 0 ) || ( bus >= scbusses->nelem)) {
|
|
return ENXIO;
|
|
}
|
|
scsi = (struct scsibus_data *)extend_get(scbusses, bus);
|
|
if(!scsi) return ENXIO;
|
|
sc_link_proto = scsi->adapter_link;
|
|
scsi_addr = sc_link_proto->adapter_targ;
|
|
if(targ == -1){
|
|
maxtarg = 7;
|
|
mintarg = 0;
|
|
} else {
|
|
if((targ < 0 ) || (targ > 7)) return EINVAL;
|
|
maxtarg = mintarg = targ;
|
|
}
|
|
|
|
if(lun == -1){
|
|
maxlun = 7;
|
|
minlun = 0;
|
|
} else {
|
|
if((lun < 0 ) || (lun > 7)) return EINVAL;
|
|
maxlun = minlun = lun;
|
|
}
|
|
|
|
for ( targ = mintarg;targ <= maxtarg; targ++) {
|
|
maybe_more = 0; /* by default only check 1 lun */
|
|
if (targ == scsi_addr) {
|
|
continue;
|
|
}
|
|
for ( lun = minlun; lun <= maxlun ;lun++) {
|
|
/*
|
|
* The spot appears to already have something
|
|
* linked in, skip past it. Must be doing a 'reprobe'
|
|
*/
|
|
if(scsi->sc_link[targ][lun])
|
|
{/* don't do this one, but check other luns */
|
|
maybe_more = 1;
|
|
continue;
|
|
}
|
|
/*
|
|
* If we presently don't have a link block
|
|
* then allocate one to use while probing
|
|
*/
|
|
if (!sc_link) {
|
|
sc_link = malloc(sizeof(*sc_link), M_TEMP, M_NOWAIT);
|
|
}
|
|
*sc_link = *sc_link_proto; /* struct copy */
|
|
sc_link->opennings = 1;
|
|
sc_link->device = &inval_switch;
|
|
sc_link->target = targ;
|
|
sc_link->lun = lun;
|
|
sc_link->quirks = 0;
|
|
bestmatch = scsi_probedev(sc_link, &maybe_more);
|
|
#ifdef NEW_SCSICONF
|
|
if (bestmatch) {
|
|
sc_link->quirks = bestmatch->quirks;
|
|
sc_link->devmodes = bestmatch->devmodes;
|
|
} else {
|
|
sc_link->quirks = 0;
|
|
sc_link->devmodes = NULL;
|
|
}
|
|
#endif
|
|
if (bestmatch) { /* FOUND */
|
|
sc_link->device = scsi_device_lookup(bestmatch->type);
|
|
|
|
(void)scsi_assign_unit(sc_link);
|
|
|
|
if (scsi_alloc_unit(sc_link)) {
|
|
|
|
if (scsi_device_attach(sc_link) == 0) {
|
|
scsi->sc_link[targ][lun] = sc_link;
|
|
sc_link = NULL; /* it's been used */
|
|
}
|
|
else
|
|
scsi_free_unit(sc_link);
|
|
}
|
|
}
|
|
|
|
if (!(maybe_more)) { /* nothing suggests we'll find more */
|
|
break; /* nothing here, skip to next targ */
|
|
}
|
|
/* otherwise something says we should look further */
|
|
}
|
|
}
|
|
if (sc_link) {
|
|
free(sc_link, M_TEMP);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
/* Return the scsi_link for this device, if any.
|
|
*/
|
|
struct scsi_link *
|
|
scsi_link_get(bus, targ, lun)
|
|
int bus;
|
|
int targ;
|
|
int lun;
|
|
{
|
|
struct scsibus_data *scsi =
|
|
(struct scsibus_data *)extend_get(scbusses, bus);
|
|
return (scsi) ? scsi->sc_link[targ][lun] : 0;
|
|
}
|
|
/*
|
|
* given a target and lu, ask the device what
|
|
* it is, and find the correct driver table
|
|
* entry.
|
|
*/
|
|
struct scsidevs *
|
|
scsi_probedev(sc_link, maybe_more)
|
|
boolean *maybe_more;
|
|
struct scsi_link *sc_link;
|
|
{
|
|
u_int8 unit = sc_link->adapter_unit;
|
|
u_int8 target = sc_link->target;
|
|
u_int8 lu = sc_link->lun;
|
|
struct scsi_adapter *scsi_adapter = sc_link->adapter;
|
|
struct scsidevs *bestmatch = (struct scsidevs *) 0;
|
|
char *dtype = (char *) 0, *desc;
|
|
char *qtype;
|
|
struct scsi_inquiry_data *inqbuf;
|
|
u_int32 len, qualifier, type;
|
|
boolean remov;
|
|
char manu[32];
|
|
char model[32];
|
|
char version[32];
|
|
int z;
|
|
|
|
inqbuf = &sc_link->inqbuf;
|
|
|
|
bzero(inqbuf, sizeof(*inqbuf));
|
|
/*
|
|
* Ask the device what it is
|
|
*/
|
|
#ifdef SCSIDEBUG
|
|
if ((target == DEBUGTARG) && (lu == DEBUGLUN))
|
|
sc_link->flags |= (DEBUGLEVEL);
|
|
else
|
|
sc_link->flags &= ~(SDEV_DB1 | SDEV_DB2 | SDEV_DB3 | SDEV_DB4);
|
|
#endif /* SCSIDEBUG */
|
|
/* catch unit attn */
|
|
scsi_test_unit_ready(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT);
|
|
#ifdef DOUBTFULL
|
|
switch (scsi_test_unit_ready(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT)) {
|
|
case 0: /* said it WAS ready */
|
|
case EBUSY: /* replied 'NOT READY' but WAS present, continue */
|
|
case ENXIO:
|
|
break;
|
|
case EIO: /* device timed out */
|
|
case EINVAL: /* Lun not supported */
|
|
default:
|
|
return (struct scsidevs *) 0;
|
|
|
|
}
|
|
#endif /*DOUBTFULL*/
|
|
#ifdef SCSI_2_DEF
|
|
/* some devices need to be told to go to SCSI2 */
|
|
/* However some just explode if you tell them this.. leave it out */
|
|
scsi_change_def(sc_link, SCSI_NOSLEEP | SCSI_NOMASK | SCSI_SILENT);
|
|
#endif /*SCSI_2_DEF */
|
|
|
|
/* Now go ask the device all about itself */
|
|
if (scsi_inquire(sc_link, inqbuf, SCSI_NOSLEEP | SCSI_NOMASK) != 0) {
|
|
return (struct scsidevs *) 0;
|
|
}
|
|
|
|
/*
|
|
* note what BASIC type of device it is
|
|
*/
|
|
type = inqbuf->device & SID_TYPE;
|
|
qualifier = inqbuf->device & SID_QUAL;
|
|
remov = inqbuf->dev_qual2 & SID_REMOVABLE;
|
|
|
|
/*
|
|
* Any device qualifier that has the top bit set (qualifier&4 != 0)
|
|
* is vendor specific and won't match in this switch.
|
|
*/
|
|
|
|
switch ((int)qualifier) {
|
|
case SID_QUAL_LU_OK:
|
|
qtype = "";
|
|
break;
|
|
|
|
case SID_QUAL_LU_OFFLINE:
|
|
qtype = ", Unit not Connected!";
|
|
break;
|
|
|
|
case SID_QUAL_RSVD:
|
|
qtype = ", Reserved Peripheral Qualifier!";
|
|
*maybe_more = 1;
|
|
return (struct scsidevs *) 0;
|
|
break;
|
|
|
|
case SID_QUAL_BAD_LU:
|
|
/*
|
|
* Check for a non-existent unit. If the device is returning
|
|
* this much, then we must set the flag that has
|
|
* the searchers keep looking on other luns.
|
|
*/
|
|
qtype = ", The Target can't support this Unit!";
|
|
*maybe_more = 1;
|
|
return (struct scsidevs *) 0;
|
|
|
|
default:
|
|
dtype = "vendor specific";
|
|
qtype = "";
|
|
*maybe_more = 1;
|
|
break;
|
|
}
|
|
|
|
if (dtype == 0) {
|
|
if (type == T_NODEVICE) {
|
|
*maybe_more = 1;
|
|
return (struct scsidevs *) 0;
|
|
}
|
|
dtype = scsi_type_long_name(type);
|
|
}
|
|
/*
|
|
* Then if it's advanced enough, more detailed
|
|
* information
|
|
*/
|
|
if ((inqbuf->version & SID_ANSII) > 0) {
|
|
if ((len = inqbuf->additional_length
|
|
+ ((char *) inqbuf->unused
|
|
- (char *) inqbuf))
|
|
> (sizeof(struct scsi_inquiry_data) - 1))
|
|
len = sizeof(struct scsi_inquiry_data) - 1;
|
|
desc = inqbuf->vendor;
|
|
desc[len - (desc - (char *) inqbuf)] = 0;
|
|
strncpy(manu, inqbuf->vendor, 8);
|
|
strncpy(model, inqbuf->product, 16);
|
|
strncpy(version, inqbuf->revision, 4);
|
|
for(z = 0; z < 4; z++) {
|
|
if (version[z]<' ') version[z]='?';
|
|
}
|
|
} else
|
|
/*
|
|
* If not advanced enough, use default values
|
|
*/
|
|
{
|
|
desc = "early protocol device";
|
|
strncpy(manu, "unknown", 8);
|
|
strncpy(model, "unknown", 16);
|
|
strncpy(version, "????", 4);
|
|
}
|
|
manu[8] = 0;
|
|
model[16] = 0;
|
|
version[4] = 0;
|
|
printf("%s%d targ %d lun %d: type %ld(%s) %s SCSI%d\n"
|
|
,scsi_adapter->name
|
|
,unit
|
|
,target
|
|
,lu
|
|
,type
|
|
,dtype
|
|
,remov ? "removable" : "fixed"
|
|
,inqbuf->version & SID_ANSII
|
|
);
|
|
printf("%s%d targ %d lun %d: <%s%s%s>\n"
|
|
,scsi_adapter->name
|
|
,unit
|
|
,target
|
|
,lu
|
|
,manu
|
|
,model
|
|
,version
|
|
);
|
|
if (qtype[0]) {
|
|
printf("%s%d targ %d lun %d: qualifier %ld(%s)\n"
|
|
,scsi_adapter->name
|
|
,unit
|
|
,target
|
|
,lu
|
|
,qualifier
|
|
,qtype
|
|
);
|
|
}
|
|
/*
|
|
* Try make as good a match as possible with
|
|
* available sub drivers
|
|
*/
|
|
bestmatch = (scsi_selectdev(
|
|
qualifier, type, remov ? T_REMOV : T_FIXED, manu, model, version));
|
|
if ((bestmatch) && (bestmatch->flags & SC_MORE_LUS)) {
|
|
*maybe_more = 1;
|
|
}
|
|
return bestmatch;
|
|
}
|
|
|
|
/* Try to find the major number for a device during attach.
|
|
*/
|
|
dev_t
|
|
scsi_dev_lookup(d_open)
|
|
int (*d_open)();
|
|
{
|
|
int i;
|
|
|
|
dev_t d = NODEV;
|
|
|
|
for (i = 0; i < nchrdev; i++)
|
|
if (cdevsw[i].d_open == d_open)
|
|
{
|
|
d = makedev(i, 0);
|
|
break;
|
|
}
|
|
|
|
return d;
|
|
}
|
|
|
|
#ifdef NEW_SCSICONF
|
|
/*
|
|
* Compare name with pattern, return 0 on match.
|
|
* Short pattern matches trailing blanks in name,
|
|
* wildcard '*' in pattern matches rest of name
|
|
*/
|
|
int
|
|
match(pattern, name)
|
|
char *pattern;
|
|
char *name;
|
|
{
|
|
char c;
|
|
while (c = *pattern++)
|
|
{
|
|
if (c == '*') return 0;
|
|
if (c != *name++) return 1;
|
|
}
|
|
while (c = *name++)
|
|
{
|
|
if (c != ' ') return 1;
|
|
}
|
|
return 0;
|
|
}
|
|
#endif
|
|
|
|
/*
|
|
* Try make as good a match as possible with
|
|
* available sub drivers
|
|
*/
|
|
struct scsidevs *
|
|
scsi_selectdev(qualifier, type, remov, manu, model, rev)
|
|
u_int32 qualifier, type;
|
|
boolean remov;
|
|
char *manu, *model, *rev;
|
|
{
|
|
#ifdef NEW_SCSICONF
|
|
struct scsidevs *bestmatch = NULL;
|
|
struct scsidevs *thisentry;
|
|
|
|
type |= qualifier; /* why? */
|
|
|
|
for ( thisentry = knowndevs; thisentry->manufacturer; thisentry++ )
|
|
{
|
|
if (type != thisentry->type) {
|
|
continue;
|
|
}
|
|
if (remov != thisentry->removable) {
|
|
continue;
|
|
}
|
|
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->manufacturer, manu);
|
|
if (match(thisentry->manufacturer, manu)) {
|
|
continue;
|
|
}
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->model, model);
|
|
if (match(thisentry->model, model)) {
|
|
continue;
|
|
}
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->version, rev);
|
|
if (match(thisentry->version, rev)) {
|
|
continue;
|
|
}
|
|
bestmatch = thisentry;
|
|
break;
|
|
}
|
|
#else
|
|
u_int32 numents = (sizeof(knowndevs) / sizeof(struct scsidevs)) - 1;
|
|
u_int32 count = 0;
|
|
u_int32 bestmatches = 0;
|
|
struct scsidevs *bestmatch = (struct scsidevs *) 0;
|
|
struct scsidevs *thisentry = knowndevs;
|
|
|
|
type |= qualifier; /* why? */
|
|
|
|
thisentry--;
|
|
while (count++ < numents) {
|
|
thisentry++;
|
|
if (type != thisentry->type) {
|
|
continue;
|
|
}
|
|
if (bestmatches < 1) {
|
|
bestmatches = 1;
|
|
bestmatch = thisentry;
|
|
}
|
|
if (remov != thisentry->removable) {
|
|
continue;
|
|
}
|
|
if (bestmatches < 2) {
|
|
bestmatches = 2;
|
|
bestmatch = thisentry;
|
|
}
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->manufacturer, manu);
|
|
if (strcmp(thisentry->manufacturer, manu)) {
|
|
continue;
|
|
}
|
|
if (bestmatches < 3) {
|
|
bestmatches = 3;
|
|
bestmatch = thisentry;
|
|
}
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->model, model);
|
|
if (strcmp(thisentry->model, model)) {
|
|
continue;
|
|
}
|
|
if (bestmatches < 4) {
|
|
bestmatches = 4;
|
|
bestmatch = thisentry;
|
|
}
|
|
if (thisentry->flags & SC_SHOWME)
|
|
printf("\n%s-\n%s-", thisentry->version, rev);
|
|
if (strcmp(thisentry->version, rev)) {
|
|
continue;
|
|
}
|
|
if (bestmatches < 5) {
|
|
bestmatches = 5;
|
|
bestmatch = thisentry;
|
|
break;
|
|
}
|
|
}
|
|
#endif /* NEW_SCSICONF */
|
|
if (bestmatch == (struct scsidevs *) 0) {
|
|
/* XXX At this point we should default to a base type driver.
|
|
*/
|
|
printf("No explicit driver match. Attaching as unknown.\n");
|
|
bestmatch = &unknowndev;
|
|
}
|
|
return (bestmatch);
|
|
}
|
|
|
|
int
|
|
scsi_externalize(struct scsi_link *sl, void *userp, size_t *lenp)
|
|
{
|
|
if(*lenp < sizeof *sl)
|
|
return ENOMEM;
|
|
|
|
*lenp -= sizeof *sl;
|
|
|
|
return copyout(sl, userp, sizeof *sl);
|
|
}
|
|
|
|
/* XXX dufault@hda.com:
|
|
* having this table of names conflicts with our decision
|
|
* that all type information be contained in a type driver.
|
|
*/
|
|
static struct {char *name; char *long_name; } types[] = {
|
|
{ "sd", "direct" },
|
|
{ "st", "sequential" },
|
|
{ "prn", "printer" },
|
|
{ "proc", "processor" },
|
|
{ "worm", "worm" },
|
|
{ "cd", "readonly" },
|
|
{ "scan", "scanner" },
|
|
{ "opmem", "optical" },
|
|
{ "ch", "changer" },
|
|
{ "comm", "communication" },
|
|
{ "asc0", "ASC-0" },
|
|
{ "asc1", "ASC-1" },
|
|
{ "uk", "unknown" },
|
|
{ "inval", "invalid" },
|
|
};
|
|
|
|
char *
|
|
scsi_type_name(int type)
|
|
{
|
|
if (type >= 0 && type < (sizeof(types) / sizeof(types[0])))
|
|
return types[type].name;
|
|
|
|
return "inval";
|
|
}
|
|
|
|
char *
|
|
scsi_type_long_name(int type)
|
|
{
|
|
if (type >= 0 && type < (sizeof(types) / sizeof(types[0])))
|
|
return types[type].long_name;
|
|
|
|
return "invalid";
|
|
}
|
|
|