1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369
|
/* @(#)scsi-hpux.c 1.29 01/03/18 Copyright 1997 J. Schilling */
#ifndef lint
static char __sccsid[] =
"@(#)scsi-hpux.c 1.29 01/03/18 Copyright 1997 J. Schilling";
#endif
/*
* Interface for the HP-UX generic SCSI implementation.
*
* Warning: you may change this source, but if you do that
* you need to change the _scg_version and _scg_auth* string below.
* You may not return "schily" for an SCG_AUTHOR request anymore.
* Choose your name instead of "schily" and make clear that the version
* string is related to a modified source.
*
* Copyright (c) 1997 J. Schilling
*/
/*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2, or (at your option)
* any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; see the file COPYING. If not, write to
* the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
*/
#undef sense
#include <sys/scsi.h>
/*
* Warning: you may change this source, but if you do that
* you need to change the _scg_version and _scg_auth* string below.
* You may not return "schily" for an SCG_AUTHOR request anymore.
* Choose your name instead of "schily" and make clear that the version
* string is related to a modified source.
*/
LOCAL char _scg_trans_version[] = "scsi-hpux.c-1.29"; /* The version for this transport*/
#define MAX_SCG 16 /* Max # of SCSI controllers */
#define MAX_TGT 16
#define MAX_LUN 8
struct scg_local {
short scgfiles[MAX_SCG][MAX_TGT][MAX_LUN];
};
#define scglocal(p) ((struct scg_local *)((p)->local))
#ifdef SCSI_MAXPHYS
# define MAX_DMA_HP SCSI_MAXPHYS
#else
# define MAX_DMA_HP (63*1024) /* Check if this is not too big */
#endif
/*
* Return version information for the low level SCSI transport code.
* This has been introduced to make it easier to trace down problems
* in applications.
*/
LOCAL char *
scgo_version(scgp, what)
SCSI *scgp;
int what;
{
if (scgp != (SCSI *)0) {
switch (what) {
case SCG_VERSION:
return (_scg_trans_version);
/*
* If you changed this source, you are not allowed to
* return "schily" for the SCG_AUTHOR request.
*/
case SCG_AUTHOR:
return (_scg_auth_schily);
case SCG_SCCS_ID:
return (__sccsid);
}
}
return ((char *)0);
}
LOCAL int
scgo_open(scgp, device)
SCSI *scgp;
char *device;
{
int busno = scg_scsibus(scgp);
int tgt = scg_target(scgp);
int tlun = scg_lun(scgp);
register int f;
register int b;
register int t;
register int l;
register int nopen = 0;
char devname[64];
if (busno >= MAX_SCG || tgt >= MAX_TGT || tlun >= MAX_LUN) {
errno = EINVAL;
if (scgp->errstr)
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
"Illegal value for busno, target or lun '%d,%d,%d'",
busno, tgt, tlun);
return (-1);
}
if ((device != NULL && *device != '\0') || (busno == -2 && tgt == -2)) {
errno = EINVAL;
if (scgp->errstr)
js_snprintf(scgp->errstr, SCSI_ERRSTR_SIZE,
"Open by 'devname' not supported on this OS");
return (-1);
}
if (scgp->local == NULL) {
scgp->local = malloc(sizeof(struct scg_local));
if (scgp->local == NULL)
return (0);
for (b=0; b < MAX_SCG; b++) {
for (t=0; t < MAX_TGT; t++) {
for (l=0; l < MAX_LUN ; l++)
scglocal(scgp)->scgfiles[b][t][l] = (short)-1;
}
}
}
if (busno >= 0 && tgt >= 0 && tlun >= 0) {
js_snprintf(devname, sizeof(devname),
"/dev/rscsi/c%xt%xl%x", busno, tgt, tlun);
f = open(devname, O_RDWR);
if (f < 0)
return(-1);
scglocal(scgp)->scgfiles[busno][tgt][tlun] = f;
return(1);
} else {
for (b=0; b < MAX_SCG; b++) {
for (t=0; t < MAX_TGT; t++) {
/* for (l=0; l < MAX_LUN ; l++) {*/
for (l=0; l < 1 ; l++) {
js_snprintf(devname, sizeof(devname),
"/dev/rscsi/c%xt%xl%x", b, t, l);
/*error("name: '%s'\n", devname);*/
f = open(devname, O_RDWR);
if (f >= 0) {
scglocal(scgp)->scgfiles[b][t][l] = (short)f;
nopen++;
} else if (scgp->debug > 0) {
errmsg("open '%s'\n", devname);
}
}
}
}
}
return (nopen);
}
LOCAL int
scgo_close(scgp)
SCSI *scgp;
{
register int f;
register int b;
register int t;
register int l;
if (scgp->local == NULL)
return (-1);
for (b=0; b < MAX_SCG; b++) {
for (t=0; t < MAX_TGT; t++) {
for (l=0; l < MAX_LUN ; l++) {
f = scglocal(scgp)->scgfiles[b][t][l];
if (f >= 0)
close(f);
scglocal(scgp)->scgfiles[b][t][l] = (short)-1;
}
}
}
return (0);
}
LOCAL long
scgo_maxdma(scgp, amt)
SCSI *scgp;
long amt;
{
return (MAX_DMA_HP);
}
LOCAL void *
scgo_getbuf(scgp, amt)
SCSI *scgp;
long amt;
{
if (scgp->debug > 0) {
js_fprintf((FILE *)scgp->errfile,
"scgo_getbuf: %ld bytes\n", amt);
}
scgp->bufbase = valloc((size_t)(amt));
return (scgp->bufbase);
}
LOCAL void
scgo_freebuf(scgp)
SCSI *scgp;
{
if (scgp->bufbase)
free(scgp->bufbase);
scgp->bufbase = NULL;
}
LOCAL BOOL
scgo_havebus(scgp, busno)
SCSI *scgp;
int busno;
{
register int t;
register int l;
if (busno < 0 || busno >= MAX_SCG)
return (FALSE);
if (scgp->local == NULL)
return (FALSE);
for (t=0; t < MAX_TGT; t++) {
for (l=0; l < MAX_LUN ; l++)
if (scglocal(scgp)->scgfiles[busno][t][l] >= 0)
return (TRUE);
}
return (FALSE);
}
LOCAL int
scgo_fileno(scgp, busno, tgt, tlun)
SCSI *scgp;
int busno;
int tgt;
int tlun;
{
if (busno < 0 || busno >= MAX_SCG ||
tgt < 0 || tgt >= MAX_TGT ||
tlun < 0 || tlun >= MAX_LUN)
return (-1);
if (scgp->local == NULL)
return (-1);
return ((int)scglocal(scgp)->scgfiles[busno][tgt][tlun]);
}
LOCAL int
scgo_initiator_id(scgp)
SCSI *scgp;
{
return (-1);
}
LOCAL int
scgo_isatapi(scgp)
SCSI *scgp;
{
return (FALSE);
}
LOCAL int
scgo_reset(scgp, what)
SCSI *scgp;
int what;
{
if (what == SCG_RESET_NOP)
return (0);
if (what != SCG_RESET_BUS) {
errno = EINVAL;
return (-1);
}
return (ioctl(scgp->fd, SIOC_RESET_BUS, 0));
}
LOCAL int
scgo_send(scgp)
SCSI *scgp;
{
struct scg_cmd *sp = scgp->scmd;
int ret;
int flags;
struct sctl_io sctl_io;
if ((scgp->fd < 0) || (sp->cdb_len > sizeof(sctl_io.cdb))) {
sp->error = SCG_FATAL;
return (0);
}
fillbytes((caddr_t)&sctl_io, sizeof(sctl_io), '\0');
flags = 0;
/* flags = SCTL_INIT_WDTR|SCTL_INIT_SDTR;*/
if (sp->flags & SCG_RECV_DATA)
flags |= SCTL_READ;
if ((sp->flags & SCG_DISRE_ENA) == 0)
flags |= SCTL_NO_ATN;
sctl_io.flags = flags;
movebytes(&sp->cdb, sctl_io.cdb, sp->cdb_len);
sctl_io.cdb_length = sp->cdb_len;
sctl_io.data_length = sp->size;
sctl_io.data = sp->addr;
if (sp->timeout == 0)
sctl_io.max_msecs = 0;
else
sctl_io.max_msecs = (sp->timeout * 1000) + 500;
errno = 0;
sp->error = SCG_NO_ERROR;
sp->sense_count = 0;
sp->u_scb.cmd_scb[0] = 0;
sp->resid = 0;
ret = ioctl(scgp->fd, SIOC_IO, &sctl_io);
if (ret < 0) {
sp->error = SCG_FATAL;
sp->ux_errno = errno;
return (ret);
}
if (scgp->debug > 0)
error("cdb_status: %X, size: %d xfer: %d\n", sctl_io.cdb_status, sctl_io.data_length, sctl_io.data_xfer);
if (sctl_io.cdb_status == 0 || sctl_io.cdb_status == 0x02)
sp->resid = sp->size - sctl_io.data_xfer;
if (sctl_io.cdb_status & SCTL_SELECT_TIMEOUT ||
sctl_io.cdb_status & SCTL_INVALID_REQUEST) {
sp->error = SCG_FATAL;
} else if (sctl_io.cdb_status & SCTL_INCOMPLETE) {
sp->error = SCG_TIMEOUT;
} else if (sctl_io.cdb_status > 0xFF) {
errmsgno(EX_BAD, "SCSI problems: cdb_status: %X\n", sctl_io.cdb_status);
} else if ((sctl_io.cdb_status & 0xFF) != 0) {
sp->error = SCG_RETRYABLE;
sp->ux_errno = EIO;
sp->u_scb.cmd_scb[0] = sctl_io.cdb_status & 0xFF;
sp->sense_count = sctl_io.sense_xfer;
if (sp->sense_count > SCG_MAX_SENSE)
sp->sense_count = SCG_MAX_SENSE;
if (sctl_io.sense_status != S_GOOD) {
sp->sense_count = 0;
} else {
movebytes(sctl_io.sense, sp->u_sense.cmd_sense, sp->sense_count);
}
}
return (ret);
}
#define sense u_sense.Sense
|