Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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FreeBSD/Linux Kernel Cross Reference
sys/dev/ic/isp_netbsd.h
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1 /* $NetBSD: isp_netbsd.h,v 1.57 2006/03/29 04:43:56 thorpej Exp $ */ 2 /* 3 * This driver, which is contained in NetBSD in the files: 4 * 5 * sys/dev/ic/isp.c 6 * sys/dev/ic/isp_inline.h 7 * sys/dev/ic/isp_netbsd.c 8 * sys/dev/ic/isp_netbsd.h 9 * sys/dev/ic/isp_target.c 10 * sys/dev/ic/isp_target.h 11 * sys/dev/ic/isp_tpublic.h 12 * sys/dev/ic/ispmbox.h 13 * sys/dev/ic/ispreg.h 14 * sys/dev/ic/ispvar.h 15 * sys/microcode/isp/asm_sbus.h 16 * sys/microcode/isp/asm_1040.h 17 * sys/microcode/isp/asm_1080.h 18 * sys/microcode/isp/asm_12160.h 19 * sys/microcode/isp/asm_2100.h 20 * sys/microcode/isp/asm_2200.h 21 * sys/pci/isp_pci.c 22 * sys/sbus/isp_sbus.c 23 * 24 * Is being actively maintained by Matthew Jacob (mjacob@NetBSD.org). 25 * This driver also is shared source with FreeBSD, OpenBSD, Linux, Solaris, 26 * Linux versions. This tends to be an interesting maintenance problem. 27 * 28 * Please coordinate with Matthew Jacob on changes you wish to make here. 29 */ 30 /* 31 * NetBSD Specific definitions for the Qlogic ISP Host Adapter 32 * Matthew Jacob <mjacob@nas.nasa.gov> 33 */ 34 /* 35 * Copyright (C) 1997, 1998, 1999 National Aeronautics & Space Administration 36 * All rights reserved. 37 * 38 * Redistribution and use in source and binary forms, with or without 39 * modification, are permitted provided that the following conditions 40 * are met: 41 * 1. Redistributions of source code must retain the above copyright 42 * notice, this list of conditions and the following disclaimer. 43 * 2. Redistributions in binary form must reproduce the above copyright 44 * notice, this list of conditions and the following disclaimer in the 45 * documentation and/or other materials provided with the distribution. 46 * 3. The name of the author may not be used to endorse or promote products 47 * derived from this software without specific prior written permission 48 * 49 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 50 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 51 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 52 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 53 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 54 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 55 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 56 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 57 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 58 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 59 */ 60 #ifndef _ISP_NETBSD_H 61 #define _ISP_NETBSD_H 62 63 #include <sys/types.h> 64 #include <sys/param.h> 65 #include <sys/systm.h> 66 #include <sys/kernel.h> 67 #include <sys/errno.h> 68 #include <sys/ioctl.h> 69 #include <sys/device.h> 70 #include <sys/malloc.h> 71 #include <sys/buf.h> 72 #include <sys/proc.h> 73 #include <sys/user.h> 74 #include <sys/kthread.h> 75 76 #include <machine/bus.h> 77 78 #include <dev/scsipi/scsi_all.h> 79 #include <dev/scsipi/scsipi_all.h> 80 #include <dev/scsipi/scsiconf.h> 81 82 #include <dev/scsipi/scsi_message.h> 83 #include <dev/scsipi/scsipi_debug.h> 84 85 #include "opt_isp.h" 86 87 /* 88 * Efficiency- get rid of SBus code && tests unless we need them. 89 */ 90 #if defined(__sparcv9__ ) || defined(__sparc__) 91 #define ISP_SBUS_SUPPORTED 1 92 #else 93 #define ISP_SBUS_SUPPORTED 0 94 #endif 95 96 #define ISP_PLATFORM_VERSION_MAJOR 2 97 #define ISP_PLATFORM_VERSION_MINOR 1 98 99 struct isposinfo { 100 struct device _dev; 101 struct scsipi_channel _chan; 102 struct scsipi_channel _chan_b; 103 struct scsipi_adapter _adapter; 104 bus_dma_tag_t dmatag; 105 bus_dmamap_t rqdmap; 106 bus_dmamap_t rsdmap; 107 bus_dmamap_t scdmap; /* FC only */ 108 int splsaved; 109 int mboxwaiting; 110 u_int32_t islocked; 111 u_int32_t onintstack; 112 unsigned int : 26, 113 loop_checked : 1, 114 mbox_wanted : 1, 115 mbox_locked : 1, 116 no_mbox_ints : 1, 117 paused : 1, 118 blocked : 1; 119 union { 120 u_int64_t _wwn; 121 u_int16_t _discovered[2]; 122 #define wwn_seed un._wwn 123 #define discovered un._discovered 124 } un; 125 u_int32_t threadwork; 126 struct proc * thread; 127 }; 128 #define isp_dmatag isp_osinfo.dmatag 129 #define isp_rqdmap isp_osinfo.rqdmap 130 #define isp_rsdmap isp_osinfo.rsdmap 131 #define isp_scdmap isp_osinfo.scdmap 132 133 #define ISP_MUSTPOLL(isp) \ 134 (isp->isp_osinfo.onintstack || isp->isp_osinfo.no_mbox_ints) 135 136 #define HANDLE_LOOPSTATE_IN_OUTER_LAYERS 1 137 138 /* 139 * Required Macros/Defines 140 */ 141 142 #define INLINE __inline 143 144 #define ISP2100_SCRLEN 0x800 145 146 #define MEMZERO(dst, amt) memset((dst), 0, (amt)) 147 #define MEMCPY(dst, src, amt) memcpy((dst), (src), (amt)) 148 #define SNPRINTF snprintf 149 #define USEC_DELAY DELAY 150 #define USEC_SLEEP(isp, x) \ 151 if (!ISP_MUSTPOLL(isp)) \ 152 ISP_UNLOCK(isp); \ 153 DELAY(x); \ 154 if (!ISP_MUSTPOLL(isp)) \ 155 ISP_LOCK(isp) 156 157 #define NANOTIME_T struct timeval 158 #define GET_NANOTIME microtime 159 #define GET_NANOSEC(x) (((x)->tv_sec * 1000000 + (x)->tv_usec) * 1000) 160 #define NANOTIME_SUB isp_microtime_sub 161 162 #define MAXISPREQUEST(isp) 256 163 164 165 #define MEMORYBARRIER(isp, type, offset, size) \ 166 switch (type) { \ 167 case SYNC_REQUEST: \ 168 { \ 169 off_t off = (off_t) offset * QENTRY_LEN; \ 170 bus_dmamap_sync(isp->isp_dmatag, isp->isp_rqdmap, \ 171 off, size, BUS_DMASYNC_PREWRITE); \ 172 break; \ 173 } \ 174 case SYNC_RESULT: \ 175 { \ 176 off_t off = (off_t) offset * QENTRY_LEN; \ 177 bus_dmamap_sync(isp->isp_dmatag, isp->isp_rsdmap, \ 178 off, size, BUS_DMASYNC_POSTREAD); \ 179 break; \ 180 } \ 181 case SYNC_SFORDEV: \ 182 { \ 183 off_t off = (off_t) offset; \ 184 bus_dmamap_sync(isp->isp_dmatag, isp->isp_scdmap, \ 185 off, size, BUS_DMASYNC_PREWRITE); \ 186 break; \ 187 } \ 188 case SYNC_SFORCPU: \ 189 { \ 190 off_t off = (off_t) offset; \ 191 bus_dmamap_sync(isp->isp_dmatag, isp->isp_scdmap, \ 192 off, size, BUS_DMASYNC_POSTREAD); \ 193 break; \ 194 } \ 195 case SYNC_REG: \ 196 default: \ 197 break; \ 198 } 199 200 #define MBOX_ACQUIRE(isp) \ 201 if (isp->isp_osinfo.onintstack) { \ 202 if (isp->isp_osinfo.mbox_locked) { \ 203 mbp->param[0] = MBOX_HOST_INTERFACE_ERROR; \ 204 isp_prt(isp, ISP_LOGERR, "cannot acquire MBOX lock"); \ 205 return; \ 206 } \ 207 } else { \ 208 while (isp->isp_osinfo.mbox_locked) { \ 209 isp->isp_osinfo.mbox_wanted = 1; \ 210 (void) tsleep(&isp->isp_osinfo.mboxwaiting+1, \ 211 PRIBIO, "mbox_acquire", 0); \ 212 } \ 213 } \ 214 isp->isp_osinfo.mbox_locked = 1 215 216 #define MBOX_WAIT_COMPLETE isp_wait_complete 217 218 #define MBOX_NOTIFY_COMPLETE(isp) \ 219 if (isp->isp_osinfo.mboxwaiting) { \ 220 isp->isp_osinfo.mboxwaiting = 0; \ 221 wakeup(&isp->isp_osinfo.mboxwaiting); \ 222 } \ 223 isp->isp_mboxbsy = 0 224 225 #define MBOX_RELEASE(isp) \ 226 if (isp->isp_osinfo.mbox_wanted) { \ 227 isp->isp_osinfo.mbox_wanted = 0; \ 228 wakeup(&isp->isp_osinfo.mboxwaiting+1); \ 229 } \ 230 isp->isp_osinfo.mbox_locked = 0 231 232 #define FC_SCRATCH_ACQUIRE(isp) 233 #define FC_SCRATCH_RELEASE(isp) 234 235 #ifndef SCSI_GOOD 236 #define SCSI_GOOD 0x0 237 #endif 238 #ifndef SCSI_CHECK 239 #define SCSI_CHECK 0x2 240 #endif 241 #ifndef SCSI_BUSY 242 #define SCSI_BUSY 0x8 243 #endif 244 #ifndef SCSI_QFULL 245 #define SCSI_QFULL 0x28 246 #endif 247 248 #define XS_T struct scsipi_xfer 249 #define XS_CHANNEL(xs) ((int) (xs)->xs_periph->periph_channel->chan_channel) 250 #define XS_ISP(xs) \ 251 ((void *)(xs)->xs_periph->periph_channel->chan_adapter->adapt_dev) 252 #define XS_LUN(xs) ((int) (xs)->xs_periph->periph_lun) 253 #define XS_TGT(xs) ((int) (xs)->xs_periph->periph_target) 254 #define XS_CDBP(xs) ((caddr_t) (xs)->cmd) 255 #define XS_CDBLEN(xs) (xs)->cmdlen 256 #define XS_XFRLEN(xs) (xs)->datalen 257 #define XS_TIME(xs) (xs)->timeout 258 #define XS_RESID(xs) (xs)->resid 259 #define XS_STSP(xs) (&(xs)->status) 260 #define XS_SNSP(xs) (&(xs)->sense.scsi_sense) 261 #define XS_SNSLEN(xs) (sizeof (xs)->sense) 262 #define XS_SNSKEY(xs) ((xs)->sense.scsi_sense.flags) 263 #define XS_TAG_P(ccb) (((xs)->xs_control & XS_CTL_POLL) != 0) 264 #define XS_TAG_TYPE(xs) \ 265 (((xs)->xs_control & XS_CTL_URGENT) ? REQFLAG_HTAG : \ 266 ((xs)->bp && xs->bp->b_flags & B_ASYNC) ? REQFLAG_STAG : REQFLAG_OTAG) 267 268 #define XS_SETERR(xs, v) (xs)->error = v 269 270 # define HBA_NOERROR XS_NOERROR 271 # define HBA_BOTCH XS_DRIVER_STUFFUP 272 # define HBA_CMDTIMEOUT XS_TIMEOUT 273 # define HBA_SELTIMEOUT XS_SELTIMEOUT 274 # define HBA_TGTBSY XS_BUSY 275 # define HBA_BUSRESET XS_RESET 276 # define HBA_ABORTED XS_DRIVER_STUFFUP 277 # define HBA_DATAOVR XS_DRIVER_STUFFUP 278 # define HBA_ARQFAIL XS_DRIVER_STUFFUP 279 280 #define XS_ERR(xs) (xs)->error 281 282 #define XS_NOERR(xs) (xs)->error == XS_NOERROR 283 284 #define XS_INITERR(xs) (xs)->error = 0, XS_CMD_S_CLEAR(xs) 285 286 #define XS_SAVE_SENSE(xs, sp) \ 287 if (xs->error == XS_NOERROR) { \ 288 xs->error = XS_SENSE; \ 289 } \ 290 memcpy(&(xs)->sense, sp->req_sense_data, \ 291 imin(XS_SNSLEN(xs), sp->req_sense_len)) 292 293 #define XS_SET_STATE_STAT(a, b, c) 294 295 #define DEFAULT_IID(x) 7 296 #define DEFAULT_LOOPID(x) 108 297 #define DEFAULT_NODEWWN(isp) (isp)->isp_osinfo.un._wwn 298 #define DEFAULT_PORTWWN(isp) (isp)->isp_osinfo.un._wwn 299 #define ISP_NODEWWN(isp) FCPARAM(isp)->isp_nodewwn 300 #define ISP_PORTWWN(isp) FCPARAM(isp)->isp_portwwn 301 302 #if _BYTE_ORDER == _BIG_ENDIAN 303 #ifdef ISP_SBUS_SUPPORTED 304 #define ISP_IOXPUT_8(isp, s, d) *(d) = s 305 #define ISP_IOXPUT_16(isp, s, d) \ 306 *(d) = (isp->isp_bustype == ISP_BT_SBUS)? s : bswap16(s) 307 #define ISP_IOXPUT_32(isp, s, d) \ 308 *(d) = (isp->isp_bustype == ISP_BT_SBUS)? s : bswap32(s) 309 310 #define ISP_IOXGET_8(isp, s, d) d = (*((u_int8_t *)s)) 311 #define ISP_IOXGET_16(isp, s, d) \ 312 d = (isp->isp_bustype == ISP_BT_SBUS)? \ 313 *((u_int16_t *)s) : bswap16(*((u_int16_t *)s)) 314 #define ISP_IOXGET_32(isp, s, d) \ 315 d = (isp->isp_bustype == ISP_BT_SBUS)? \ 316 *((u_int32_t *)s) : bswap32(*((u_int32_t *)s)) 317 #else 318 #define ISP_IOXPUT_8(isp, s, d) *(d) = s 319 #define ISP_IOXPUT_16(isp, s, d) *(d) = bswap16(s) 320 #define ISP_IOXPUT_32(isp, s, d) *(d) = bswap32(s) 321 #define ISP_IOXGET_8(isp, s, d) d = (*((u_int8_t *)s)) 322 #define ISP_IOXGET_16(isp, s, d) d = bswap16(*((u_int16_t *)s)) 323 #define ISP_IOXGET_32(isp, s, d) d = bswap32(*((u_int32_t *)s)) 324 #endif 325 #define ISP_SWIZZLE_NVRAM_WORD(isp, rp) *rp = bswap16(*rp) 326 #else 327 #define ISP_IOXPUT_8(isp, s, d) *(d) = s 328 #define ISP_IOXPUT_16(isp, s, d) *(d) = s 329 #define ISP_IOXPUT_32(isp, s, d) *(d) = s 330 #define ISP_IOXGET_8(isp, s, d) d = *(s) 331 #define ISP_IOXGET_16(isp, s, d) d = *(s) 332 #define ISP_IOXGET_32(isp, s, d) d = *(s) 333 #define ISP_SWIZZLE_NVRAM_WORD(isp, rp) 334 #endif 335 336 /* 337 * Includes of common header files 338 */ 339 340 #include <dev/ic/ispreg.h> 341 #include <dev/ic/ispvar.h> 342 #include <dev/ic/ispmbox.h> 343 #include <dev/ic/isp_ioctl.h> 344 345 /* 346 * isp_osinfo definitions, extensions and shorthand. 347 */ 348 #define isp_name isp_osinfo._dev.dv_xname 349 #define isp_chanA isp_osinfo._chan 350 #define isp_chanB isp_osinfo._chan_b 351 352 353 /* 354 * Driver prototypes.. 355 */ 356 void isp_attach(struct ispsoftc *); 357 void isp_uninit(struct ispsoftc *); 358 359 static INLINE void isp_lock(struct ispsoftc *); 360 static INLINE void isp_unlock(struct ispsoftc *); 361 static INLINE char *strncat(char *, const char *, size_t); 362 static INLINE u_int64_t 363 isp_microtime_sub(struct timeval *, struct timeval *); 364 static void isp_wait_complete(struct ispsoftc *); 365 366 /* 367 * Driver wide data... 368 */ 369 370 /* 371 * Locking macros... 372 */ 373 #define ISP_LOCK isp_lock 374 #define ISP_UNLOCK isp_unlock 375 #define ISP_ILOCK(x) isp_lock(x); isp->isp_osinfo.onintstack++ 376 #define ISP_IUNLOCK(x) isp->isp_osinfo.onintstack--; isp_unlock(x) 377 378 /* 379 * Platform private flags 380 */ 381 382 #define XS_PSTS_INWDOG 0x10000000 383 #define XS_PSTS_GRACE 0x20000000 384 #define XS_PSTS_ALL 0x30000000 385 386 #define XS_CMD_S_WDOG(xs) (xs)->xs_status |= XS_PSTS_INWDOG 387 #define XS_CMD_C_WDOG(xs) (xs)->xs_status &= ~XS_PSTS_INWDOG 388 #define XS_CMD_WDOG_P(xs) (((xs)->xs_status & XS_PSTS_INWDOG) != 0) 389 390 #define XS_CMD_S_GRACE(xs) (xs)->xs_status |= XS_PSTS_GRACE 391 #define XS_CMD_C_GRACE(xs) (xs)->xs_status &= ~XS_PSTS_GRACE 392 #define XS_CMD_GRACE_P(xs) (((xs)->xs_status & XS_PSTS_GRACE) != 0) 393 394 #define XS_CMD_S_DONE(xs) (xs)->xs_status |= XS_STS_DONE 395 #define XS_CMD_C_DONE(xs) (xs)->xs_status &= ~XS_STS_DONE 396 #define XS_CMD_DONE_P(xs) (((xs)->xs_status & XS_STS_DONE) != 0) 397 398 #define XS_CMD_S_CLEAR(xs) (xs)->xs_status &= ~XS_PSTS_ALL 399 400 /* 401 * Platform specific 'inline' or support functions 402 */ 403 static INLINE void 404 isp_lock(struct ispsoftc *isp) 405 { 406 int s = splbio(); 407 if (isp->isp_osinfo.islocked++ == 0) { 408 isp->isp_osinfo.splsaved = s; 409 } else { 410 splx(s); 411 } 412 } 413 414 static INLINE void 415 isp_unlock(struct ispsoftc *isp) 416 { 417 if (isp->isp_osinfo.islocked-- <= 1) { 418 isp->isp_osinfo.islocked = 0; 419 splx(isp->isp_osinfo.splsaved); 420 } 421 } 422 423 static INLINE char * 424 strncat(char *d, const char *s, size_t c) 425 { 426 char *t = d; 427 428 if (c) { 429 while (*d) 430 d++; 431 while ((*d++ = *s++)) { 432 if (--c == 0) { 433 *d = '\0'; 434 break; 435 } 436 } 437 } 438 return (t); 439 } 440 441 static INLINE u_int64_t 442 isp_microtime_sub(struct timeval *b, struct timeval *a) 443 { 444 struct timeval x; 445 u_int64_t elapsed; 446 timersub(b, a, &x); 447 elapsed = GET_NANOSEC(&x); 448 if (elapsed == 0) 449 elapsed++; 450 return (elapsed); 451 } 452 453 static INLINE void 454 isp_wait_complete(struct ispsoftc *isp) 455 { 456 int lim; 457 if (isp->isp_mbxwrk0) 458 lim = 60; 459 else 460 lim = 5; 461 if (ISP_MUSTPOLL(isp)) { 462 int useclim = 1000000 * lim, usecs = 0; 463 /* 464 * For sanity's sake, we don't delay longer 465 * than 5 seconds for polled commands. 466 */ 467 while (usecs < useclim) { 468 u_int16_t isr, sema, mbox; 469 if (isp->isp_mboxbsy == 0) { 470 break; 471 } 472 if (ISP_READ_ISR(isp, &isr, &sema, &mbox)) { 473 isp_intr(isp, isr, sema, mbox); 474 if (isp->isp_mboxbsy == 0) { 475 break; 476 } 477 } 478 USEC_DELAY(500); 479 usecs += 500; 480 } 481 if (isp->isp_mboxbsy != 0) { 482 isp_prt(isp, ISP_LOGWARN, 483 "Polled Mailbox Command (0x%x) Timeout", 484 isp->isp_lastmbxcmd); 485 } 486 } else { 487 int rv = 0; 488 isp->isp_osinfo.mboxwaiting = 1; 489 while (isp->isp_osinfo.mboxwaiting && rv == 0) { 490 struct timeval dtime; 491 int timo; 492 struct timeval tv; 493 494 dtime.tv_sec = lim; 495 dtime.tv_usec = 0; 496 microtime(&tv); 497 timeradd(&tv, &dtime, &tv); 498 if ((timo = hzto(&tv)) == 0) { 499 timo = 1; 500 } 501 rv = tsleep(&isp->isp_osinfo.mboxwaiting, 502 PRIBIO, "isp_mboxcmd", timo); 503 } 504 if (rv == EWOULDBLOCK) { 505 isp->isp_mboxbsy = 0; 506 isp->isp_osinfo.mboxwaiting = 0; 507 isp_prt(isp, ISP_LOGWARN, 508 "Interrupting Mailbox Command (0x%x) Timeout", 509 isp->isp_lastmbxcmd); 510 } 511 } 512 } 513 514 515 /* 516 * Common inline functions 517 */ 518 #include <dev/ic/isp_inline.h> 519 520 #if !defined(ISP_DISABLE_FW) && !defined(ISP_COMPILE_FW) 521 #define ISP_COMPILE_FW 1 522 #endif 523 #endif /* _ISP_NETBSD_H */
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