1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family 4 * of PCI-SCSI IO processors. 5 * 6 * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr> 7 * Copyright (c) 2003-2005 Matthew Wilcox <matthew@wil.cx> 8 * 9 * This driver is derived from the Linux sym53c8xx driver. 10 * Copyright (C) 1998-2000 Gerard Roudier 11 * 12 * The sym53c8xx driver is derived from the ncr53c8xx driver that had been 13 * a port of the FreeBSD ncr driver to Linux-1.2.13. 14 * 15 * The original ncr driver has been written for 386bsd and FreeBSD by 16 * Wolfgang Stanglmeier <wolf@cologne.de> 17 * Stefan Esser <se@mi.Uni-Koeln.de> 18 * Copyright (C) 1994 Wolfgang Stanglmeier 19 * 20 * Other major contributions: 21 * 22 * NVRAM detection and reading. 23 * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk> 24 * 25 *----------------------------------------------------------------------------- 26 */ 27 #include <linux/ctype.h> 28 #include <linux/init.h> 29 #include <linux/module.h> 30 #include <linux/moduleparam.h> 31 #include <linux/spinlock.h> 32 #include <scsi/scsi.h> 33 #include <scsi/scsi_tcq.h> 34 #include <scsi/scsi_device.h> 35 #include <scsi/scsi_transport.h> 36 37 #include "sym_glue.h" 38 #include "sym_nvram.h" 39 40 #define NAME53C "sym53c" 41 #define NAME53C8XX "sym53c8xx" 42 43 struct sym_driver_setup sym_driver_setup = SYM_LINUX_DRIVER_SETUP; 44 unsigned int sym_debug_flags = 0; 45 46 static char *excl_string; 47 static char *safe_string; 48 module_param_named(cmd_per_lun, sym_driver_setup.max_tag, ushort, 0); 49 module_param_named(burst, sym_driver_setup.burst_order, byte, 0); 50 module_param_named(led, sym_driver_setup.scsi_led, byte, 0); 51 module_param_named(diff, sym_driver_setup.scsi_diff, byte, 0); 52 module_param_named(irqm, sym_driver_setup.irq_mode, byte, 0); 53 module_param_named(buschk, sym_driver_setup.scsi_bus_check, byte, 0); 54 module_param_named(hostid, sym_driver_setup.host_id, byte, 0); 55 module_param_named(verb, sym_driver_setup.verbose, byte, 0); 56 module_param_named(debug, sym_debug_flags, uint, 0); 57 module_param_named(settle, sym_driver_setup.settle_delay, byte, 0); 58 module_param_named(nvram, sym_driver_setup.use_nvram, byte, 0); 59 module_param_named(excl, excl_string, charp, 0); 60 module_param_named(safe, safe_string, charp, 0); 61 62 MODULE_PARM_DESC(cmd_per_lun, "The maximum number of tags to use by default"); 63 MODULE_PARM_DESC(burst, "Maximum burst. 0 to disable, 255 to read from registers"); 64 MODULE_PARM_DESC(led, "Set to 1 to enable LED support"); 65 MODULE_PARM_DESC(diff, "0 for no differential mode, 1 for BIOS, 2 for always, 3 for not GPIO3"); 66 MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole"); 67 MODULE_PARM_DESC(buschk, "0 to not check, 1 for detach on error, 2 for warn on error"); 68 MODULE_PARM_DESC(hostid, "The SCSI ID to use for the host adapters"); 69 MODULE_PARM_DESC(verb, "0 for minimal verbosity, 1 for normal, 2 for excessive"); 70 MODULE_PARM_DESC(debug, "Set bits to enable debugging"); 71 MODULE_PARM_DESC(settle, "Settle delay in seconds. Default 3"); 72 MODULE_PARM_DESC(nvram, "Option currently not used"); 73 MODULE_PARM_DESC(excl, "List ioport addresses here to prevent controllers from being attached"); 74 MODULE_PARM_DESC(safe, "Set other settings to a \"safe mode\""); 75 76 MODULE_LICENSE("GPL"); 77 MODULE_VERSION(SYM_VERSION); 78 MODULE_AUTHOR("Matthew Wilcox <matthew@wil.cx>"); 79 MODULE_DESCRIPTION("NCR, Symbios and LSI 8xx and 1010 PCI SCSI adapters"); 80 81 static void sym2_setup_params(void) 82 { 83 char *p = excl_string; 84 int xi = 0; 85 86 while (p && (xi < 8)) { 87 char *next_p; 88 int val = (int) simple_strtoul(p, &next_p, 0); 89 sym_driver_setup.excludes[xi++] = val; 90 p = next_p; 91 } 92 93 if (safe_string) { 94 if (*safe_string == 'y') { 95 sym_driver_setup.max_tag = 0; 96 sym_driver_setup.burst_order = 0; 97 sym_driver_setup.scsi_led = 0; 98 sym_driver_setup.scsi_diff = 1; 99 sym_driver_setup.irq_mode = 0; 100 sym_driver_setup.scsi_bus_check = 2; 101 sym_driver_setup.host_id = 7; 102 sym_driver_setup.verbose = 2; 103 sym_driver_setup.settle_delay = 10; 104 sym_driver_setup.use_nvram = 1; 105 } else if (*safe_string != 'n') { 106 printk(KERN_WARNING NAME53C8XX "Ignoring parameter %s" 107 " passed to safe option", safe_string); 108 } 109 } 110 } 111 112 static struct scsi_transport_template *sym2_transport_template = NULL; 113 114 /* 115 * Driver private area in the SCSI command structure. 116 */ 117 struct sym_ucmd { /* Override the SCSI pointer structure */ 118 struct completion *eh_done; /* SCSI error handling */ 119 }; 120 121 #define SYM_UCMD_PTR(cmd) ((struct sym_ucmd *)scsi_cmd_priv(cmd)) 122 #define SYM_SOFTC_PTR(cmd) sym_get_hcb(cmd->device->host) 123 124 /* 125 * Complete a pending CAM CCB. 126 */ 127 void sym_xpt_done(struct sym_hcb *np, struct scsi_cmnd *cmd) 128 { 129 struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); 130 131 if (ucmd->eh_done) 132 complete(ucmd->eh_done); 133 134 scsi_dma_unmap(cmd); 135 scsi_done(cmd); 136 } 137 138 /* 139 * Tell the SCSI layer about a BUS RESET. 140 */ 141 void sym_xpt_async_bus_reset(struct sym_hcb *np) 142 { 143 printf_notice("%s: SCSI BUS has been reset.\n", sym_name(np)); 144 np->s.settle_time = jiffies + sym_driver_setup.settle_delay * HZ; 145 np->s.settle_time_valid = 1; 146 if (sym_verbose >= 2) 147 printf_info("%s: command processing suspended for %d seconds\n", 148 sym_name(np), sym_driver_setup.settle_delay); 149 } 150 151 /* 152 * Choose the more appropriate CAM status if 153 * the IO encountered an extended error. 154 */ 155 static int sym_xerr_cam_status(int cam_status, int x_status) 156 { 157 if (x_status) { 158 if (x_status & XE_PARITY_ERR) 159 cam_status = DID_PARITY; 160 else 161 cam_status = DID_ERROR; 162 } 163 return cam_status; 164 } 165 166 /* 167 * Build CAM result for a failed or auto-sensed IO. 168 */ 169 void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid) 170 { 171 struct scsi_cmnd *cmd = cp->cmd; 172 u_int cam_status, scsi_status; 173 174 cam_status = DID_OK; 175 scsi_status = cp->ssss_status; 176 177 if (cp->host_flags & HF_SENSE) { 178 scsi_status = cp->sv_scsi_status; 179 resid = cp->sv_resid; 180 if (sym_verbose && cp->sv_xerr_status) 181 sym_print_xerr(cmd, cp->sv_xerr_status); 182 if (cp->host_status == HS_COMPLETE && 183 cp->ssss_status == S_GOOD && 184 cp->xerr_status == 0) { 185 cam_status = sym_xerr_cam_status(DID_OK, 186 cp->sv_xerr_status); 187 /* 188 * Bounce back the sense data to user. 189 */ 190 memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 191 memcpy(cmd->sense_buffer, cp->sns_bbuf, 192 min(SCSI_SENSE_BUFFERSIZE, SYM_SNS_BBUF_LEN)); 193 #if 0 194 /* 195 * If the device reports a UNIT ATTENTION condition 196 * due to a RESET condition, we should consider all 197 * disconnect CCBs for this unit as aborted. 198 */ 199 if (1) { 200 u_char *p; 201 p = (u_char *) cmd->sense_data; 202 if (p[0]==0x70 && p[2]==0x6 && p[12]==0x29) 203 sym_clear_tasks(np, DID_ABORT, 204 cp->target,cp->lun, -1); 205 } 206 #endif 207 } else { 208 /* 209 * Error return from our internal request sense. This 210 * is bad: we must clear the contingent allegiance 211 * condition otherwise the device will always return 212 * BUSY. Use a big stick. 213 */ 214 sym_reset_scsi_target(np, cmd->device->id); 215 cam_status = DID_ERROR; 216 } 217 } else if (cp->host_status == HS_COMPLETE) /* Bad SCSI status */ 218 cam_status = DID_OK; 219 else if (cp->host_status == HS_SEL_TIMEOUT) /* Selection timeout */ 220 cam_status = DID_NO_CONNECT; 221 else if (cp->host_status == HS_UNEXPECTED) /* Unexpected BUS FREE*/ 222 cam_status = DID_ERROR; 223 else { /* Extended error */ 224 if (sym_verbose) { 225 sym_print_addr(cmd, "COMMAND FAILED (%x %x %x).\n", 226 cp->host_status, cp->ssss_status, 227 cp->xerr_status); 228 } 229 /* 230 * Set the most appropriate value for CAM status. 231 */ 232 cam_status = sym_xerr_cam_status(DID_ERROR, cp->xerr_status); 233 } 234 scsi_set_resid(cmd, resid); 235 cmd->result = (cam_status << 16) | scsi_status; 236 } 237 238 static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd) 239 { 240 int segment; 241 int use_sg; 242 243 cp->data_len = 0; 244 245 use_sg = scsi_dma_map(cmd); 246 if (use_sg > 0) { 247 struct scatterlist *sg; 248 struct sym_tcb *tp = &np->target[cp->target]; 249 struct sym_tblmove *data; 250 251 if (use_sg > SYM_CONF_MAX_SG) { 252 scsi_dma_unmap(cmd); 253 return -1; 254 } 255 256 data = &cp->phys.data[SYM_CONF_MAX_SG - use_sg]; 257 258 scsi_for_each_sg(cmd, sg, use_sg, segment) { 259 dma_addr_t baddr = sg_dma_address(sg); 260 unsigned int len = sg_dma_len(sg); 261 262 if ((len & 1) && (tp->head.wval & EWS)) { 263 len++; 264 cp->odd_byte_adjustment++; 265 } 266 267 sym_build_sge(np, &data[segment], baddr, len); 268 cp->data_len += len; 269 } 270 } else { 271 segment = -2; 272 } 273 274 return segment; 275 } 276 277 /* 278 * Queue a SCSI command. 279 */ 280 static int sym_queue_command(struct sym_hcb *np, struct scsi_cmnd *cmd) 281 { 282 struct scsi_device *sdev = cmd->device; 283 struct sym_tcb *tp; 284 struct sym_lcb *lp; 285 struct sym_ccb *cp; 286 int order; 287 288 /* 289 * Retrieve the target descriptor. 290 */ 291 tp = &np->target[sdev->id]; 292 293 /* 294 * Select tagged/untagged. 295 */ 296 lp = sym_lp(tp, sdev->lun); 297 order = (lp && lp->s.reqtags) ? M_SIMPLE_TAG : 0; 298 299 /* 300 * Queue the SCSI IO. 301 */ 302 cp = sym_get_ccb(np, cmd, order); 303 if (!cp) 304 return 1; /* Means resource shortage */ 305 sym_queue_scsiio(np, cmd, cp); 306 return 0; 307 } 308 309 /* 310 * Setup buffers and pointers that address the CDB. 311 */ 312 static inline int sym_setup_cdb(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) 313 { 314 memcpy(cp->cdb_buf, cmd->cmnd, cmd->cmd_len); 315 316 cp->phys.cmd.addr = CCB_BA(cp, cdb_buf[0]); 317 cp->phys.cmd.size = cpu_to_scr(cmd->cmd_len); 318 319 return 0; 320 } 321 322 /* 323 * Setup pointers that address the data and start the I/O. 324 */ 325 int sym_setup_data_and_start(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) 326 { 327 u32 lastp, goalp; 328 int dir; 329 330 /* 331 * Build the CDB. 332 */ 333 if (sym_setup_cdb(np, cmd, cp)) 334 goto out_abort; 335 336 /* 337 * No direction means no data. 338 */ 339 dir = cmd->sc_data_direction; 340 if (dir != DMA_NONE) { 341 cp->segments = sym_scatter(np, cp, cmd); 342 if (cp->segments < 0) { 343 sym_set_cam_status(cmd, DID_ERROR); 344 goto out_abort; 345 } 346 347 /* 348 * No segments means no data. 349 */ 350 if (!cp->segments) 351 dir = DMA_NONE; 352 } else { 353 cp->data_len = 0; 354 cp->segments = 0; 355 } 356 357 /* 358 * Set the data pointer. 359 */ 360 switch (dir) { 361 case DMA_BIDIRECTIONAL: 362 scmd_printk(KERN_INFO, cmd, "got DMA_BIDIRECTIONAL command"); 363 sym_set_cam_status(cmd, DID_ERROR); 364 goto out_abort; 365 case DMA_TO_DEVICE: 366 goalp = SCRIPTA_BA(np, data_out2) + 8; 367 lastp = goalp - 8 - (cp->segments * (2*4)); 368 break; 369 case DMA_FROM_DEVICE: 370 cp->host_flags |= HF_DATA_IN; 371 goalp = SCRIPTA_BA(np, data_in2) + 8; 372 lastp = goalp - 8 - (cp->segments * (2*4)); 373 break; 374 case DMA_NONE: 375 default: 376 lastp = goalp = SCRIPTB_BA(np, no_data); 377 break; 378 } 379 380 /* 381 * Set all pointers values needed by SCRIPTS. 382 */ 383 cp->phys.head.lastp = cpu_to_scr(lastp); 384 cp->phys.head.savep = cpu_to_scr(lastp); 385 cp->startp = cp->phys.head.savep; 386 cp->goalp = cpu_to_scr(goalp); 387 388 /* 389 * When `#ifed 1', the code below makes the driver 390 * panic on the first attempt to write to a SCSI device. 391 * It is the first test we want to do after a driver 392 * change that does not seem obviously safe. :) 393 */ 394 #if 0 395 switch (cp->cdb_buf[0]) { 396 case 0x0A: case 0x2A: case 0xAA: 397 panic("XXXXXXXXXXXXX WRITE NOT YET ALLOWED XXXXXXXXXXXXXX\n"); 398 break; 399 default: 400 break; 401 } 402 #endif 403 404 /* 405 * activate this job. 406 */ 407 sym_put_start_queue(np, cp); 408 return 0; 409 410 out_abort: 411 sym_free_ccb(np, cp); 412 sym_xpt_done(np, cmd); 413 return 0; 414 } 415 416 417 /* 418 * timer daemon. 419 * 420 * Misused to keep the driver running when 421 * interrupts are not configured correctly. 422 */ 423 static void sym_timer(struct sym_hcb *np) 424 { 425 unsigned long thistime = jiffies; 426 427 /* 428 * Restart the timer. 429 */ 430 np->s.timer.expires = thistime + SYM_CONF_TIMER_INTERVAL; 431 add_timer(&np->s.timer); 432 433 /* 434 * If we are resetting the ncr, wait for settle_time before 435 * clearing it. Then command processing will be resumed. 436 */ 437 if (np->s.settle_time_valid) { 438 if (time_before_eq(np->s.settle_time, thistime)) { 439 if (sym_verbose >= 2 ) 440 printk("%s: command processing resumed\n", 441 sym_name(np)); 442 np->s.settle_time_valid = 0; 443 } 444 return; 445 } 446 447 /* 448 * Nothing to do for now, but that may come. 449 */ 450 if (np->s.lasttime + 4*HZ < thistime) { 451 np->s.lasttime = thistime; 452 } 453 454 #ifdef SYM_CONF_PCIQ_MAY_MISS_COMPLETIONS 455 /* 456 * Some way-broken PCI bridges may lead to 457 * completions being lost when the clearing 458 * of the INTFLY flag by the CPU occurs 459 * concurrently with the chip raising this flag. 460 * If this ever happen, lost completions will 461 * be reaped here. 462 */ 463 sym_wakeup_done(np); 464 #endif 465 } 466 467 468 /* 469 * PCI BUS error handler. 470 */ 471 void sym_log_bus_error(struct Scsi_Host *shost) 472 { 473 struct sym_data *sym_data = shost_priv(shost); 474 struct pci_dev *pdev = sym_data->pdev; 475 unsigned short pci_sts; 476 pci_read_config_word(pdev, PCI_STATUS, &pci_sts); 477 if (pci_sts & 0xf900) { 478 pci_write_config_word(pdev, PCI_STATUS, pci_sts); 479 shost_printk(KERN_WARNING, shost, 480 "PCI bus error: status = 0x%04x\n", pci_sts & 0xf900); 481 } 482 } 483 484 /* 485 * queuecommand method. Entered with the host adapter lock held and 486 * interrupts disabled. 487 */ 488 static int sym53c8xx_queue_command_lck(struct scsi_cmnd *cmd) 489 { 490 struct sym_hcb *np = SYM_SOFTC_PTR(cmd); 491 struct sym_ucmd *ucp = SYM_UCMD_PTR(cmd); 492 int sts = 0; 493 494 memset(ucp, 0, sizeof(*ucp)); 495 496 /* 497 * Shorten our settle_time if needed for 498 * this command not to time out. 499 */ 500 if (np->s.settle_time_valid && scsi_cmd_to_rq(cmd)->timeout) { 501 unsigned long tlimit = jiffies + scsi_cmd_to_rq(cmd)->timeout; 502 tlimit -= SYM_CONF_TIMER_INTERVAL*2; 503 if (time_after(np->s.settle_time, tlimit)) { 504 np->s.settle_time = tlimit; 505 } 506 } 507 508 if (np->s.settle_time_valid) 509 return SCSI_MLQUEUE_HOST_BUSY; 510 511 sts = sym_queue_command(np, cmd); 512 if (sts) 513 return SCSI_MLQUEUE_HOST_BUSY; 514 return 0; 515 } 516 517 static DEF_SCSI_QCMD(sym53c8xx_queue_command) 518 519 /* 520 * Linux entry point of the interrupt handler. 521 */ 522 static irqreturn_t sym53c8xx_intr(int irq, void *dev_id) 523 { 524 struct Scsi_Host *shost = dev_id; 525 struct sym_data *sym_data = shost_priv(shost); 526 irqreturn_t result; 527 528 /* Avoid spinloop trying to handle interrupts on frozen device */ 529 if (pci_channel_offline(sym_data->pdev)) 530 return IRQ_NONE; 531 532 if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("["); 533 534 spin_lock(shost->host_lock); 535 result = sym_interrupt(shost); 536 spin_unlock(shost->host_lock); 537 538 if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("]\n"); 539 540 return result; 541 } 542 543 /* 544 * Linux entry point of the timer handler 545 */ 546 static void sym53c8xx_timer(struct timer_list *t) 547 { 548 struct sym_hcb *np = from_timer(np, t, s.timer); 549 unsigned long flags; 550 551 spin_lock_irqsave(np->s.host->host_lock, flags); 552 sym_timer(np); 553 spin_unlock_irqrestore(np->s.host->host_lock, flags); 554 } 555 556 557 /* 558 * What the eh thread wants us to perform. 559 */ 560 #define SYM_EH_ABORT 0 561 #define SYM_EH_DEVICE_RESET 1 562 #define SYM_EH_BUS_RESET 2 563 #define SYM_EH_HOST_RESET 3 564 565 /* 566 * Generic method for our eh processing. 567 * The 'op' argument tells what we have to do. 568 */ 569 static int sym_eh_handler(int op, char *opname, struct scsi_cmnd *cmd) 570 { 571 struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); 572 struct Scsi_Host *shost = cmd->device->host; 573 struct sym_data *sym_data = shost_priv(shost); 574 struct pci_dev *pdev = sym_data->pdev; 575 struct sym_hcb *np = sym_data->ncb; 576 SYM_QUEHEAD *qp; 577 int cmd_queued = 0; 578 int sts = -1; 579 struct completion eh_done; 580 581 scmd_printk(KERN_WARNING, cmd, "%s operation started\n", opname); 582 583 /* We may be in an error condition because the PCI bus 584 * went down. In this case, we need to wait until the 585 * PCI bus is reset, the card is reset, and only then 586 * proceed with the scsi error recovery. There's no 587 * point in hurrying; take a leisurely wait. 588 */ 589 #define WAIT_FOR_PCI_RECOVERY 35 590 if (pci_channel_offline(pdev)) { 591 int finished_reset = 0; 592 init_completion(&eh_done); 593 spin_lock_irq(shost->host_lock); 594 /* Make sure we didn't race */ 595 if (pci_channel_offline(pdev)) { 596 BUG_ON(sym_data->io_reset); 597 sym_data->io_reset = &eh_done; 598 } else { 599 finished_reset = 1; 600 } 601 spin_unlock_irq(shost->host_lock); 602 if (!finished_reset) 603 finished_reset = wait_for_completion_timeout 604 (sym_data->io_reset, 605 WAIT_FOR_PCI_RECOVERY*HZ); 606 spin_lock_irq(shost->host_lock); 607 sym_data->io_reset = NULL; 608 spin_unlock_irq(shost->host_lock); 609 if (!finished_reset) 610 return SCSI_FAILED; 611 } 612 613 spin_lock_irq(shost->host_lock); 614 /* This one is queued in some place -> to wait for completion */ 615 FOR_EACH_QUEUED_ELEMENT(&np->busy_ccbq, qp) { 616 struct sym_ccb *cp = sym_que_entry(qp, struct sym_ccb, link_ccbq); 617 if (cp->cmd == cmd) { 618 cmd_queued = 1; 619 break; 620 } 621 } 622 623 /* Try to proceed the operation we have been asked for */ 624 sts = -1; 625 switch(op) { 626 case SYM_EH_ABORT: 627 sts = sym_abort_scsiio(np, cmd, 1); 628 break; 629 case SYM_EH_DEVICE_RESET: 630 sts = sym_reset_scsi_target(np, cmd->device->id); 631 break; 632 case SYM_EH_BUS_RESET: 633 sym_reset_scsi_bus(np, 1); 634 sts = 0; 635 break; 636 case SYM_EH_HOST_RESET: 637 sym_reset_scsi_bus(np, 0); 638 sym_start_up(shost, 1); 639 sts = 0; 640 break; 641 default: 642 break; 643 } 644 645 /* On error, restore everything and cross fingers :) */ 646 if (sts) 647 cmd_queued = 0; 648 649 if (cmd_queued) { 650 init_completion(&eh_done); 651 ucmd->eh_done = &eh_done; 652 spin_unlock_irq(shost->host_lock); 653 if (!wait_for_completion_timeout(&eh_done, 5*HZ)) { 654 ucmd->eh_done = NULL; 655 sts = -2; 656 } 657 } else { 658 spin_unlock_irq(shost->host_lock); 659 } 660 661 dev_warn(&cmd->device->sdev_gendev, "%s operation %s.\n", opname, 662 sts==0 ? "complete" :sts==-2 ? "timed-out" : "failed"); 663 return sts ? SCSI_FAILED : SCSI_SUCCESS; 664 } 665 666 667 /* 668 * Error handlers called from the eh thread (one thread per HBA). 669 */ 670 static int sym53c8xx_eh_abort_handler(struct scsi_cmnd *cmd) 671 { 672 return sym_eh_handler(SYM_EH_ABORT, "ABORT", cmd); 673 } 674 675 static int sym53c8xx_eh_device_reset_handler(struct scsi_cmnd *cmd) 676 { 677 return sym_eh_handler(SYM_EH_DEVICE_RESET, "DEVICE RESET", cmd); 678 } 679 680 static int sym53c8xx_eh_bus_reset_handler(struct scsi_cmnd *cmd) 681 { 682 return sym_eh_handler(SYM_EH_BUS_RESET, "BUS RESET", cmd); 683 } 684 685 static int sym53c8xx_eh_host_reset_handler(struct scsi_cmnd *cmd) 686 { 687 return sym_eh_handler(SYM_EH_HOST_RESET, "HOST RESET", cmd); 688 } 689 690 /* 691 * Tune device queuing depth, according to various limits. 692 */ 693 static void sym_tune_dev_queuing(struct sym_tcb *tp, int lun, u_short reqtags) 694 { 695 struct sym_lcb *lp = sym_lp(tp, lun); 696 u_short oldtags; 697 698 if (!lp) 699 return; 700 701 oldtags = lp->s.reqtags; 702 703 if (reqtags > lp->s.scdev_depth) 704 reqtags = lp->s.scdev_depth; 705 706 lp->s.reqtags = reqtags; 707 708 if (reqtags != oldtags) { 709 dev_info(&tp->starget->dev, 710 "tagged command queuing %s, command queue depth %d.\n", 711 lp->s.reqtags ? "enabled" : "disabled", reqtags); 712 } 713 } 714 715 static int sym53c8xx_slave_alloc(struct scsi_device *sdev) 716 { 717 struct sym_hcb *np = sym_get_hcb(sdev->host); 718 struct sym_tcb *tp = &np->target[sdev->id]; 719 struct sym_lcb *lp; 720 unsigned long flags; 721 int error; 722 723 if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN) 724 return -ENXIO; 725 726 spin_lock_irqsave(np->s.host->host_lock, flags); 727 728 /* 729 * Fail the device init if the device is flagged NOSCAN at BOOT in 730 * the NVRAM. This may speed up boot and maintain coherency with 731 * BIOS device numbering. Clearing the flag allows the user to 732 * rescan skipped devices later. We also return an error for 733 * devices not flagged for SCAN LUNS in the NVRAM since some single 734 * lun devices behave badly when asked for a non zero LUN. 735 */ 736 737 if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) { 738 tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED; 739 starget_printk(KERN_INFO, sdev->sdev_target, 740 "Scan at boot disabled in NVRAM\n"); 741 error = -ENXIO; 742 goto out; 743 } 744 745 if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) { 746 if (sdev->lun != 0) { 747 error = -ENXIO; 748 goto out; 749 } 750 starget_printk(KERN_INFO, sdev->sdev_target, 751 "Multiple LUNs disabled in NVRAM\n"); 752 } 753 754 lp = sym_alloc_lcb(np, sdev->id, sdev->lun); 755 if (!lp) { 756 error = -ENOMEM; 757 goto out; 758 } 759 if (tp->nlcb == 1) 760 tp->starget = sdev->sdev_target; 761 762 spi_min_period(tp->starget) = tp->usr_period; 763 spi_max_width(tp->starget) = tp->usr_width; 764 765 error = 0; 766 out: 767 spin_unlock_irqrestore(np->s.host->host_lock, flags); 768 769 return error; 770 } 771 772 /* 773 * Linux entry point for device queue sizing. 774 */ 775 static int sym53c8xx_slave_configure(struct scsi_device *sdev) 776 { 777 struct sym_hcb *np = sym_get_hcb(sdev->host); 778 struct sym_tcb *tp = &np->target[sdev->id]; 779 struct sym_lcb *lp = sym_lp(tp, sdev->lun); 780 int reqtags, depth_to_use; 781 782 /* 783 * Get user flags. 784 */ 785 lp->curr_flags = lp->user_flags; 786 787 /* 788 * Select queue depth from driver setup. 789 * Do not use more than configured by user. 790 * Use at least 1. 791 * Do not use more than our maximum. 792 */ 793 reqtags = sym_driver_setup.max_tag; 794 if (reqtags > tp->usrtags) 795 reqtags = tp->usrtags; 796 if (!sdev->tagged_supported) 797 reqtags = 0; 798 if (reqtags > SYM_CONF_MAX_TAG) 799 reqtags = SYM_CONF_MAX_TAG; 800 depth_to_use = reqtags ? reqtags : 1; 801 scsi_change_queue_depth(sdev, depth_to_use); 802 lp->s.scdev_depth = depth_to_use; 803 sym_tune_dev_queuing(tp, sdev->lun, reqtags); 804 805 if (!spi_initial_dv(sdev->sdev_target)) 806 spi_dv_device(sdev); 807 808 return 0; 809 } 810 811 static void sym53c8xx_slave_destroy(struct scsi_device *sdev) 812 { 813 struct sym_hcb *np = sym_get_hcb(sdev->host); 814 struct sym_tcb *tp = &np->target[sdev->id]; 815 struct sym_lcb *lp = sym_lp(tp, sdev->lun); 816 unsigned long flags; 817 818 /* if slave_alloc returned before allocating a sym_lcb, return */ 819 if (!lp) 820 return; 821 822 spin_lock_irqsave(np->s.host->host_lock, flags); 823 824 if (lp->busy_itlq || lp->busy_itl) { 825 /* 826 * This really shouldn't happen, but we can't return an error 827 * so let's try to stop all on-going I/O. 828 */ 829 starget_printk(KERN_WARNING, tp->starget, 830 "Removing busy LCB (%d)\n", (u8)sdev->lun); 831 sym_reset_scsi_bus(np, 1); 832 } 833 834 if (sym_free_lcb(np, sdev->id, sdev->lun) == 0) { 835 /* 836 * It was the last unit for this target. 837 */ 838 tp->head.sval = 0; 839 tp->head.wval = np->rv_scntl3; 840 tp->head.uval = 0; 841 tp->tgoal.check_nego = 1; 842 tp->starget = NULL; 843 } 844 845 spin_unlock_irqrestore(np->s.host->host_lock, flags); 846 } 847 848 /* 849 * Linux entry point for info() function 850 */ 851 static const char *sym53c8xx_info (struct Scsi_Host *host) 852 { 853 return SYM_DRIVER_NAME; 854 } 855 856 857 #ifdef SYM_LINUX_PROC_INFO_SUPPORT 858 /* 859 * Proc file system stuff 860 * 861 * A read operation returns adapter information. 862 * A write operation is a control command. 863 * The string is parsed in the driver code and the command is passed 864 * to the sym_usercmd() function. 865 */ 866 867 #ifdef SYM_LINUX_USER_COMMAND_SUPPORT 868 869 struct sym_usrcmd { 870 u_long target; 871 u_long lun; 872 u_long data; 873 u_long cmd; 874 }; 875 876 #define UC_SETSYNC 10 877 #define UC_SETTAGS 11 878 #define UC_SETDEBUG 12 879 #define UC_SETWIDE 14 880 #define UC_SETFLAG 15 881 #define UC_SETVERBOSE 17 882 #define UC_RESETDEV 18 883 #define UC_CLEARDEV 19 884 885 static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc) 886 { 887 struct sym_tcb *tp; 888 int t, l; 889 890 switch (uc->cmd) { 891 case 0: return; 892 893 #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT 894 case UC_SETDEBUG: 895 sym_debug_flags = uc->data; 896 break; 897 #endif 898 case UC_SETVERBOSE: 899 np->verbose = uc->data; 900 break; 901 default: 902 /* 903 * We assume that other commands apply to targets. 904 * This should always be the case and avoid the below 905 * 4 lines to be repeated 6 times. 906 */ 907 for (t = 0; t < SYM_CONF_MAX_TARGET; t++) { 908 if (!((uc->target >> t) & 1)) 909 continue; 910 tp = &np->target[t]; 911 if (!tp->nlcb) 912 continue; 913 914 switch (uc->cmd) { 915 916 case UC_SETSYNC: 917 if (!uc->data || uc->data >= 255) { 918 tp->tgoal.iu = tp->tgoal.dt = 919 tp->tgoal.qas = 0; 920 tp->tgoal.offset = 0; 921 } else if (uc->data <= 9 && np->minsync_dt) { 922 if (uc->data < np->minsync_dt) 923 uc->data = np->minsync_dt; 924 tp->tgoal.iu = tp->tgoal.dt = 925 tp->tgoal.qas = 1; 926 tp->tgoal.width = 1; 927 tp->tgoal.period = uc->data; 928 tp->tgoal.offset = np->maxoffs_dt; 929 } else { 930 if (uc->data < np->minsync) 931 uc->data = np->minsync; 932 tp->tgoal.iu = tp->tgoal.dt = 933 tp->tgoal.qas = 0; 934 tp->tgoal.period = uc->data; 935 tp->tgoal.offset = np->maxoffs; 936 } 937 tp->tgoal.check_nego = 1; 938 break; 939 case UC_SETWIDE: 940 tp->tgoal.width = uc->data ? 1 : 0; 941 tp->tgoal.check_nego = 1; 942 break; 943 case UC_SETTAGS: 944 for (l = 0; l < SYM_CONF_MAX_LUN; l++) 945 sym_tune_dev_queuing(tp, l, uc->data); 946 break; 947 case UC_RESETDEV: 948 tp->to_reset = 1; 949 np->istat_sem = SEM; 950 OUTB(np, nc_istat, SIGP|SEM); 951 break; 952 case UC_CLEARDEV: 953 for (l = 0; l < SYM_CONF_MAX_LUN; l++) { 954 struct sym_lcb *lp = sym_lp(tp, l); 955 if (lp) lp->to_clear = 1; 956 } 957 np->istat_sem = SEM; 958 OUTB(np, nc_istat, SIGP|SEM); 959 break; 960 case UC_SETFLAG: 961 tp->usrflags = uc->data; 962 break; 963 } 964 } 965 break; 966 } 967 } 968 969 static int sym_skip_spaces(char *ptr, int len) 970 { 971 int cnt, c; 972 973 for (cnt = len; cnt > 0 && (c = *ptr++) && isspace(c); cnt--); 974 975 return (len - cnt); 976 } 977 978 static int get_int_arg(char *ptr, int len, u_long *pv) 979 { 980 char *end; 981 982 *pv = simple_strtoul(ptr, &end, 10); 983 return (end - ptr); 984 } 985 986 static int is_keyword(char *ptr, int len, char *verb) 987 { 988 int verb_len = strlen(verb); 989 990 if (len >= verb_len && !memcmp(verb, ptr, verb_len)) 991 return verb_len; 992 else 993 return 0; 994 } 995 996 #define SKIP_SPACES(ptr, len) \ 997 if ((arg_len = sym_skip_spaces(ptr, len)) < 1) \ 998 return -EINVAL; \ 999 ptr += arg_len; len -= arg_len; 1000 1001 #define GET_INT_ARG(ptr, len, v) \ 1002 if (!(arg_len = get_int_arg(ptr, len, &(v)))) \ 1003 return -EINVAL; \ 1004 ptr += arg_len; len -= arg_len; 1005 1006 1007 /* 1008 * Parse a control command 1009 */ 1010 1011 static int sym_user_command(struct Scsi_Host *shost, char *buffer, int length) 1012 { 1013 struct sym_hcb *np = sym_get_hcb(shost); 1014 char *ptr = buffer; 1015 int len = length; 1016 struct sym_usrcmd cmd, *uc = &cmd; 1017 int arg_len; 1018 u_long target; 1019 1020 memset(uc, 0, sizeof(*uc)); 1021 1022 if (len > 0 && ptr[len-1] == '\n') 1023 --len; 1024 1025 if ((arg_len = is_keyword(ptr, len, "setsync")) != 0) 1026 uc->cmd = UC_SETSYNC; 1027 else if ((arg_len = is_keyword(ptr, len, "settags")) != 0) 1028 uc->cmd = UC_SETTAGS; 1029 else if ((arg_len = is_keyword(ptr, len, "setverbose")) != 0) 1030 uc->cmd = UC_SETVERBOSE; 1031 else if ((arg_len = is_keyword(ptr, len, "setwide")) != 0) 1032 uc->cmd = UC_SETWIDE; 1033 #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT 1034 else if ((arg_len = is_keyword(ptr, len, "setdebug")) != 0) 1035 uc->cmd = UC_SETDEBUG; 1036 #endif 1037 else if ((arg_len = is_keyword(ptr, len, "setflag")) != 0) 1038 uc->cmd = UC_SETFLAG; 1039 else if ((arg_len = is_keyword(ptr, len, "resetdev")) != 0) 1040 uc->cmd = UC_RESETDEV; 1041 else if ((arg_len = is_keyword(ptr, len, "cleardev")) != 0) 1042 uc->cmd = UC_CLEARDEV; 1043 else 1044 arg_len = 0; 1045 1046 #ifdef DEBUG_PROC_INFO 1047 printk("sym_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd); 1048 #endif 1049 1050 if (!arg_len) 1051 return -EINVAL; 1052 ptr += arg_len; len -= arg_len; 1053 1054 switch(uc->cmd) { 1055 case UC_SETSYNC: 1056 case UC_SETTAGS: 1057 case UC_SETWIDE: 1058 case UC_SETFLAG: 1059 case UC_RESETDEV: 1060 case UC_CLEARDEV: 1061 SKIP_SPACES(ptr, len); 1062 if ((arg_len = is_keyword(ptr, len, "all")) != 0) { 1063 ptr += arg_len; len -= arg_len; 1064 uc->target = ~0; 1065 } else { 1066 GET_INT_ARG(ptr, len, target); 1067 uc->target = (1<<target); 1068 #ifdef DEBUG_PROC_INFO 1069 printk("sym_user_command: target=%ld\n", target); 1070 #endif 1071 } 1072 break; 1073 } 1074 1075 switch(uc->cmd) { 1076 case UC_SETVERBOSE: 1077 case UC_SETSYNC: 1078 case UC_SETTAGS: 1079 case UC_SETWIDE: 1080 SKIP_SPACES(ptr, len); 1081 GET_INT_ARG(ptr, len, uc->data); 1082 #ifdef DEBUG_PROC_INFO 1083 printk("sym_user_command: data=%ld\n", uc->data); 1084 #endif 1085 break; 1086 #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT 1087 case UC_SETDEBUG: 1088 while (len > 0) { 1089 SKIP_SPACES(ptr, len); 1090 if ((arg_len = is_keyword(ptr, len, "alloc"))) 1091 uc->data |= DEBUG_ALLOC; 1092 else if ((arg_len = is_keyword(ptr, len, "phase"))) 1093 uc->data |= DEBUG_PHASE; 1094 else if ((arg_len = is_keyword(ptr, len, "queue"))) 1095 uc->data |= DEBUG_QUEUE; 1096 else if ((arg_len = is_keyword(ptr, len, "result"))) 1097 uc->data |= DEBUG_RESULT; 1098 else if ((arg_len = is_keyword(ptr, len, "scatter"))) 1099 uc->data |= DEBUG_SCATTER; 1100 else if ((arg_len = is_keyword(ptr, len, "script"))) 1101 uc->data |= DEBUG_SCRIPT; 1102 else if ((arg_len = is_keyword(ptr, len, "tiny"))) 1103 uc->data |= DEBUG_TINY; 1104 else if ((arg_len = is_keyword(ptr, len, "timing"))) 1105 uc->data |= DEBUG_TIMING; 1106 else if ((arg_len = is_keyword(ptr, len, "nego"))) 1107 uc->data |= DEBUG_NEGO; 1108 else if ((arg_len = is_keyword(ptr, len, "tags"))) 1109 uc->data |= DEBUG_TAGS; 1110 else if ((arg_len = is_keyword(ptr, len, "pointer"))) 1111 uc->data |= DEBUG_POINTER; 1112 else 1113 return -EINVAL; 1114 ptr += arg_len; len -= arg_len; 1115 } 1116 #ifdef DEBUG_PROC_INFO 1117 printk("sym_user_command: data=%ld\n", uc->data); 1118 #endif 1119 break; 1120 #endif /* SYM_LINUX_DEBUG_CONTROL_SUPPORT */ 1121 case UC_SETFLAG: 1122 while (len > 0) { 1123 SKIP_SPACES(ptr, len); 1124 if ((arg_len = is_keyword(ptr, len, "no_disc"))) 1125 uc->data &= ~SYM_DISC_ENABLED; 1126 else 1127 return -EINVAL; 1128 ptr += arg_len; len -= arg_len; 1129 } 1130 break; 1131 default: 1132 break; 1133 } 1134 1135 if (len) 1136 return -EINVAL; 1137 else { 1138 unsigned long flags; 1139 1140 spin_lock_irqsave(shost->host_lock, flags); 1141 sym_exec_user_command(np, uc); 1142 spin_unlock_irqrestore(shost->host_lock, flags); 1143 } 1144 return length; 1145 } 1146 1147 #endif /* SYM_LINUX_USER_COMMAND_SUPPORT */ 1148 1149 1150 /* 1151 * Copy formatted information into the input buffer. 1152 */ 1153 static int sym_show_info(struct seq_file *m, struct Scsi_Host *shost) 1154 { 1155 #ifdef SYM_LINUX_USER_INFO_SUPPORT 1156 struct sym_data *sym_data = shost_priv(shost); 1157 struct pci_dev *pdev = sym_data->pdev; 1158 struct sym_hcb *np = sym_data->ncb; 1159 1160 seq_printf(m, "Chip " NAME53C "%s, device id 0x%x, " 1161 "revision id 0x%x\n", np->s.chip_name, 1162 pdev->device, pdev->revision); 1163 seq_printf(m, "At PCI address %s, IRQ %u\n", 1164 pci_name(pdev), pdev->irq); 1165 seq_printf(m, "Min. period factor %d, %s SCSI BUS%s\n", 1166 (int) (np->minsync_dt ? np->minsync_dt : np->minsync), 1167 np->maxwide ? "Wide" : "Narrow", 1168 np->minsync_dt ? ", DT capable" : ""); 1169 1170 seq_printf(m, "Max. started commands %d, " 1171 "max. commands per LUN %d\n", 1172 SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); 1173 1174 return 0; 1175 #else 1176 return -EINVAL; 1177 #endif /* SYM_LINUX_USER_INFO_SUPPORT */ 1178 } 1179 1180 #endif /* SYM_LINUX_PROC_INFO_SUPPORT */ 1181 1182 /* 1183 * Free resources claimed by sym_iomap_device(). Note that 1184 * sym_free_resources() should be used instead of this function after calling 1185 * sym_attach(). 1186 */ 1187 static void sym_iounmap_device(struct sym_device *device) 1188 { 1189 if (device->s.ioaddr) 1190 pci_iounmap(device->pdev, device->s.ioaddr); 1191 if (device->s.ramaddr) 1192 pci_iounmap(device->pdev, device->s.ramaddr); 1193 } 1194 1195 /* 1196 * Free controller resources. 1197 */ 1198 static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev, 1199 int do_free_irq) 1200 { 1201 /* 1202 * Free O/S specific resources. 1203 */ 1204 if (do_free_irq) 1205 free_irq(pdev->irq, np->s.host); 1206 if (np->s.ioaddr) 1207 pci_iounmap(pdev, np->s.ioaddr); 1208 if (np->s.ramaddr) 1209 pci_iounmap(pdev, np->s.ramaddr); 1210 /* 1211 * Free O/S independent resources. 1212 */ 1213 sym_hcb_free(np); 1214 1215 sym_mfree_dma(np, sizeof(*np), "HCB"); 1216 } 1217 1218 /* 1219 * Host attach and initialisations. 1220 * 1221 * Allocate host data and ncb structure. 1222 * Remap MMIO region. 1223 * Do chip initialization. 1224 * If all is OK, install interrupt handling and 1225 * start the timer daemon. 1226 */ 1227 static struct Scsi_Host *sym_attach(const struct scsi_host_template *tpnt, int unit, 1228 struct sym_device *dev) 1229 { 1230 struct sym_data *sym_data; 1231 struct sym_hcb *np = NULL; 1232 struct Scsi_Host *shost = NULL; 1233 struct pci_dev *pdev = dev->pdev; 1234 unsigned long flags; 1235 struct sym_fw *fw; 1236 int do_free_irq = 0; 1237 1238 printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n", 1239 unit, dev->chip.name, pdev->revision, pci_name(pdev), 1240 pdev->irq); 1241 1242 /* 1243 * Get the firmware for this chip. 1244 */ 1245 fw = sym_find_firmware(&dev->chip); 1246 if (!fw) 1247 goto attach_failed; 1248 1249 shost = scsi_host_alloc(tpnt, sizeof(*sym_data)); 1250 if (!shost) 1251 goto attach_failed; 1252 sym_data = shost_priv(shost); 1253 1254 /* 1255 * Allocate immediately the host control block, 1256 * since we are only expecting to succeed. :) 1257 * We keep track in the HCB of all the resources that 1258 * are to be released on error. 1259 */ 1260 np = __sym_calloc_dma(&pdev->dev, sizeof(*np), "HCB"); 1261 if (!np) 1262 goto attach_failed; 1263 np->bus_dmat = &pdev->dev; /* Result in 1 DMA pool per HBA */ 1264 sym_data->ncb = np; 1265 sym_data->pdev = pdev; 1266 np->s.host = shost; 1267 1268 pci_set_drvdata(pdev, shost); 1269 1270 /* 1271 * Copy some useful infos to the HCB. 1272 */ 1273 np->hcb_ba = vtobus(np); 1274 np->verbose = sym_driver_setup.verbose; 1275 np->s.unit = unit; 1276 np->features = dev->chip.features; 1277 np->clock_divn = dev->chip.nr_divisor; 1278 np->maxoffs = dev->chip.offset_max; 1279 np->maxburst = dev->chip.burst_max; 1280 np->myaddr = dev->host_id; 1281 np->mmio_ba = (u32)dev->mmio_base; 1282 np->ram_ba = (u32)dev->ram_base; 1283 np->s.ioaddr = dev->s.ioaddr; 1284 np->s.ramaddr = dev->s.ramaddr; 1285 1286 /* 1287 * Edit its name. 1288 */ 1289 strscpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name)); 1290 sprintf(np->s.inst_name, "sym%d", np->s.unit); 1291 1292 if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) && 1293 !dma_set_mask(&pdev->dev, DMA_DAC_MASK)) { 1294 set_dac(np); 1295 } else if (dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) { 1296 printf_warning("%s: No suitable DMA available\n", sym_name(np)); 1297 goto attach_failed; 1298 } 1299 1300 if (sym_hcb_attach(shost, fw, dev->nvram)) 1301 goto attach_failed; 1302 1303 /* 1304 * Install the interrupt handler. 1305 * If we synchonize the C code with SCRIPTS on interrupt, 1306 * we do not want to share the INTR line at all. 1307 */ 1308 if (request_irq(pdev->irq, sym53c8xx_intr, IRQF_SHARED, NAME53C8XX, 1309 shost)) { 1310 printf_err("%s: request irq %u failure\n", 1311 sym_name(np), pdev->irq); 1312 goto attach_failed; 1313 } 1314 do_free_irq = 1; 1315 1316 /* 1317 * After SCSI devices have been opened, we cannot 1318 * reset the bus safely, so we do it here. 1319 */ 1320 spin_lock_irqsave(shost->host_lock, flags); 1321 if (sym_reset_scsi_bus(np, 0)) 1322 goto reset_failed; 1323 1324 /* 1325 * Start the SCRIPTS. 1326 */ 1327 sym_start_up(shost, 1); 1328 1329 /* 1330 * Start the timer daemon 1331 */ 1332 timer_setup(&np->s.timer, sym53c8xx_timer, 0); 1333 np->s.lasttime=0; 1334 sym_timer (np); 1335 1336 /* 1337 * Fill Linux host instance structure 1338 * and return success. 1339 */ 1340 shost->max_channel = 0; 1341 shost->this_id = np->myaddr; 1342 shost->max_id = np->maxwide ? 16 : 8; 1343 shost->max_lun = SYM_CONF_MAX_LUN; 1344 shost->unique_id = pci_resource_start(pdev, 0); 1345 shost->cmd_per_lun = SYM_CONF_MAX_TAG; 1346 shost->can_queue = (SYM_CONF_MAX_START-2); 1347 shost->sg_tablesize = SYM_CONF_MAX_SG; 1348 shost->max_cmd_len = 16; 1349 BUG_ON(sym2_transport_template == NULL); 1350 shost->transportt = sym2_transport_template; 1351 1352 /* 53c896 rev 1 errata: DMA may not cross 16MB boundary */ 1353 if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 2) 1354 shost->dma_boundary = 0xFFFFFF; 1355 1356 spin_unlock_irqrestore(shost->host_lock, flags); 1357 1358 return shost; 1359 1360 reset_failed: 1361 printf_err("%s: FATAL ERROR: CHECK SCSI BUS - CABLES, " 1362 "TERMINATION, DEVICE POWER etc.!\n", sym_name(np)); 1363 spin_unlock_irqrestore(shost->host_lock, flags); 1364 attach_failed: 1365 printf_info("sym%d: giving up ...\n", unit); 1366 if (np) 1367 sym_free_resources(np, pdev, do_free_irq); 1368 else 1369 sym_iounmap_device(dev); 1370 if (shost) 1371 scsi_host_put(shost); 1372 1373 return NULL; 1374 } 1375 1376 1377 /* 1378 * Detect and try to read SYMBIOS and TEKRAM NVRAM. 1379 */ 1380 #if SYM_CONF_NVRAM_SUPPORT 1381 static void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) 1382 { 1383 devp->nvram = nvp; 1384 nvp->type = 0; 1385 1386 sym_read_nvram(devp, nvp); 1387 } 1388 #else 1389 static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) 1390 { 1391 } 1392 #endif /* SYM_CONF_NVRAM_SUPPORT */ 1393 1394 static int sym_check_supported(struct sym_device *device) 1395 { 1396 struct sym_chip *chip; 1397 struct pci_dev *pdev = device->pdev; 1398 unsigned long io_port = pci_resource_start(pdev, 0); 1399 int i; 1400 1401 /* 1402 * If user excluded this chip, do not initialize it. 1403 * I hate this code so much. Must kill it. 1404 */ 1405 if (io_port) { 1406 for (i = 0 ; i < 8 ; i++) { 1407 if (sym_driver_setup.excludes[i] == io_port) 1408 return -ENODEV; 1409 } 1410 } 1411 1412 /* 1413 * Check if the chip is supported. Then copy the chip description 1414 * to our device structure so we can make it match the actual device 1415 * and options. 1416 */ 1417 chip = sym_lookup_chip_table(pdev->device, pdev->revision); 1418 if (!chip) { 1419 dev_info(&pdev->dev, "device not supported\n"); 1420 return -ENODEV; 1421 } 1422 memcpy(&device->chip, chip, sizeof(device->chip)); 1423 1424 return 0; 1425 } 1426 1427 /* 1428 * Ignore Symbios chips controlled by various RAID controllers. 1429 * These controllers set value 0x52414944 at RAM end - 16. 1430 */ 1431 static int sym_check_raid(struct sym_device *device) 1432 { 1433 unsigned int ram_size, ram_val; 1434 1435 if (!device->s.ramaddr) 1436 return 0; 1437 1438 if (device->chip.features & FE_RAM8K) 1439 ram_size = 8192; 1440 else 1441 ram_size = 4096; 1442 1443 ram_val = readl(device->s.ramaddr + ram_size - 16); 1444 if (ram_val != 0x52414944) 1445 return 0; 1446 1447 dev_info(&device->pdev->dev, 1448 "not initializing, driven by RAID controller.\n"); 1449 return -ENODEV; 1450 } 1451 1452 static int sym_set_workarounds(struct sym_device *device) 1453 { 1454 struct sym_chip *chip = &device->chip; 1455 struct pci_dev *pdev = device->pdev; 1456 u_short status_reg; 1457 1458 /* 1459 * (ITEM 12 of a DEL about the 896 I haven't yet). 1460 * We must ensure the chip will use WRITE AND INVALIDATE. 1461 * The revision number limit is for now arbitrary. 1462 */ 1463 if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 0x4) { 1464 chip->features |= (FE_WRIE | FE_CLSE); 1465 } 1466 1467 /* If the chip can do Memory Write Invalidate, enable it */ 1468 if (chip->features & FE_WRIE) { 1469 if (pci_set_mwi(pdev)) 1470 return -ENODEV; 1471 } 1472 1473 /* 1474 * Work around for errant bit in 895A. The 66Mhz 1475 * capable bit is set erroneously. Clear this bit. 1476 * (Item 1 DEL 533) 1477 * 1478 * Make sure Config space and Features agree. 1479 * 1480 * Recall: writes are not normal to status register - 1481 * write a 1 to clear and a 0 to leave unchanged. 1482 * Can only reset bits. 1483 */ 1484 pci_read_config_word(pdev, PCI_STATUS, &status_reg); 1485 if (chip->features & FE_66MHZ) { 1486 if (!(status_reg & PCI_STATUS_66MHZ)) 1487 chip->features &= ~FE_66MHZ; 1488 } else { 1489 if (status_reg & PCI_STATUS_66MHZ) { 1490 status_reg = PCI_STATUS_66MHZ; 1491 pci_write_config_word(pdev, PCI_STATUS, status_reg); 1492 pci_read_config_word(pdev, PCI_STATUS, &status_reg); 1493 } 1494 } 1495 1496 return 0; 1497 } 1498 1499 /* 1500 * Map HBA registers and on-chip SRAM (if present). 1501 */ 1502 static int sym_iomap_device(struct sym_device *device) 1503 { 1504 struct pci_dev *pdev = device->pdev; 1505 struct pci_bus_region bus_addr; 1506 int i = 2; 1507 1508 pcibios_resource_to_bus(pdev->bus, &bus_addr, &pdev->resource[1]); 1509 device->mmio_base = bus_addr.start; 1510 1511 if (device->chip.features & FE_RAM) { 1512 /* 1513 * If the BAR is 64-bit, resource 2 will be occupied by the 1514 * upper 32 bits 1515 */ 1516 if (!pdev->resource[i].flags) 1517 i++; 1518 pcibios_resource_to_bus(pdev->bus, &bus_addr, 1519 &pdev->resource[i]); 1520 device->ram_base = bus_addr.start; 1521 } 1522 1523 #ifdef CONFIG_SCSI_SYM53C8XX_MMIO 1524 if (device->mmio_base) 1525 device->s.ioaddr = pci_iomap(pdev, 1, 1526 pci_resource_len(pdev, 1)); 1527 #endif 1528 if (!device->s.ioaddr) 1529 device->s.ioaddr = pci_iomap(pdev, 0, 1530 pci_resource_len(pdev, 0)); 1531 if (!device->s.ioaddr) { 1532 dev_err(&pdev->dev, "could not map registers; giving up.\n"); 1533 return -EIO; 1534 } 1535 if (device->ram_base) { 1536 device->s.ramaddr = pci_iomap(pdev, i, 1537 pci_resource_len(pdev, i)); 1538 if (!device->s.ramaddr) { 1539 dev_warn(&pdev->dev, 1540 "could not map SRAM; continuing anyway.\n"); 1541 device->ram_base = 0; 1542 } 1543 } 1544 1545 return 0; 1546 } 1547 1548 /* 1549 * The NCR PQS and PDS cards are constructed as a DEC bridge 1550 * behind which sits a proprietary NCR memory controller and 1551 * either four or two 53c875s as separate devices. We can tell 1552 * if an 875 is part of a PQS/PDS or not since if it is, it will 1553 * be on the same bus as the memory controller. In its usual 1554 * mode of operation, the 875s are slaved to the memory 1555 * controller for all transfers. To operate with the Linux 1556 * driver, the memory controller is disabled and the 875s 1557 * freed to function independently. The only wrinkle is that 1558 * the preset SCSI ID (which may be zero) must be read in from 1559 * a special configuration space register of the 875. 1560 */ 1561 static void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev) 1562 { 1563 int slot; 1564 u8 tmp; 1565 1566 for (slot = 0; slot < 256; slot++) { 1567 struct pci_dev *memc = pci_get_slot(pdev->bus, slot); 1568 1569 if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) { 1570 pci_dev_put(memc); 1571 continue; 1572 } 1573 1574 /* bit 1: allow individual 875 configuration */ 1575 pci_read_config_byte(memc, 0x44, &tmp); 1576 if ((tmp & 0x2) == 0) { 1577 tmp |= 0x2; 1578 pci_write_config_byte(memc, 0x44, tmp); 1579 } 1580 1581 /* bit 2: drive individual 875 interrupts to the bus */ 1582 pci_read_config_byte(memc, 0x45, &tmp); 1583 if ((tmp & 0x4) == 0) { 1584 tmp |= 0x4; 1585 pci_write_config_byte(memc, 0x45, tmp); 1586 } 1587 1588 pci_dev_put(memc); 1589 break; 1590 } 1591 1592 pci_read_config_byte(pdev, 0x84, &tmp); 1593 sym_dev->host_id = tmp; 1594 } 1595 1596 /* 1597 * Called before unloading the module. 1598 * Detach the host. 1599 * We have to free resources and halt the NCR chip. 1600 */ 1601 static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev) 1602 { 1603 struct sym_hcb *np = sym_get_hcb(shost); 1604 printk("%s: detaching ...\n", sym_name(np)); 1605 1606 del_timer_sync(&np->s.timer); 1607 1608 /* 1609 * Reset NCR chip. 1610 * We should use sym_soft_reset(), but we don't want to do 1611 * so, since we may not be safe if interrupts occur. 1612 */ 1613 printk("%s: resetting chip\n", sym_name(np)); 1614 OUTB(np, nc_istat, SRST); 1615 INB(np, nc_mbox1); 1616 udelay(10); 1617 OUTB(np, nc_istat, 0); 1618 1619 sym_free_resources(np, pdev, 1); 1620 scsi_host_put(shost); 1621 1622 return 1; 1623 } 1624 1625 /* 1626 * Driver host template. 1627 */ 1628 static const struct scsi_host_template sym2_template = { 1629 .module = THIS_MODULE, 1630 .name = "sym53c8xx", 1631 .info = sym53c8xx_info, 1632 .cmd_size = sizeof(struct sym_ucmd), 1633 .queuecommand = sym53c8xx_queue_command, 1634 .slave_alloc = sym53c8xx_slave_alloc, 1635 .slave_configure = sym53c8xx_slave_configure, 1636 .slave_destroy = sym53c8xx_slave_destroy, 1637 .eh_abort_handler = sym53c8xx_eh_abort_handler, 1638 .eh_device_reset_handler = sym53c8xx_eh_device_reset_handler, 1639 .eh_bus_reset_handler = sym53c8xx_eh_bus_reset_handler, 1640 .eh_host_reset_handler = sym53c8xx_eh_host_reset_handler, 1641 .this_id = 7, 1642 .max_sectors = 0xFFFF, 1643 #ifdef SYM_LINUX_PROC_INFO_SUPPORT 1644 .show_info = sym_show_info, 1645 #ifdef SYM_LINUX_USER_COMMAND_SUPPORT 1646 .write_info = sym_user_command, 1647 #endif 1648 .proc_name = NAME53C8XX, 1649 #endif 1650 }; 1651 1652 static int attach_count; 1653 1654 static int sym2_probe(struct pci_dev *pdev, const struct pci_device_id *ent) 1655 { 1656 struct sym_device sym_dev; 1657 struct sym_nvram nvram; 1658 struct Scsi_Host *shost; 1659 int do_iounmap = 0; 1660 int do_disable_device = 1; 1661 1662 memset(&sym_dev, 0, sizeof(sym_dev)); 1663 memset(&nvram, 0, sizeof(nvram)); 1664 sym_dev.pdev = pdev; 1665 sym_dev.host_id = SYM_SETUP_HOST_ID; 1666 1667 if (pci_enable_device(pdev)) 1668 goto leave; 1669 1670 pci_set_master(pdev); 1671 1672 if (pci_request_regions(pdev, NAME53C8XX)) 1673 goto disable; 1674 1675 if (sym_check_supported(&sym_dev)) 1676 goto free; 1677 1678 if (sym_iomap_device(&sym_dev)) 1679 goto free; 1680 do_iounmap = 1; 1681 1682 if (sym_check_raid(&sym_dev)) { 1683 do_disable_device = 0; /* Don't disable the device */ 1684 goto free; 1685 } 1686 1687 if (sym_set_workarounds(&sym_dev)) 1688 goto free; 1689 1690 sym_config_pqs(pdev, &sym_dev); 1691 1692 sym_get_nvram(&sym_dev, &nvram); 1693 1694 do_iounmap = 0; /* Don't sym_iounmap_device() after sym_attach(). */ 1695 shost = sym_attach(&sym2_template, attach_count, &sym_dev); 1696 if (!shost) 1697 goto free; 1698 1699 if (scsi_add_host(shost, &pdev->dev)) 1700 goto detach; 1701 scsi_scan_host(shost); 1702 1703 attach_count++; 1704 1705 return 0; 1706 1707 detach: 1708 sym_detach(pci_get_drvdata(pdev), pdev); 1709 free: 1710 if (do_iounmap) 1711 sym_iounmap_device(&sym_dev); 1712 pci_release_regions(pdev); 1713 disable: 1714 if (do_disable_device) 1715 pci_disable_device(pdev); 1716 leave: 1717 return -ENODEV; 1718 } 1719 1720 static void sym2_remove(struct pci_dev *pdev) 1721 { 1722 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1723 1724 scsi_remove_host(shost); 1725 sym_detach(shost, pdev); 1726 pci_release_regions(pdev); 1727 pci_disable_device(pdev); 1728 1729 attach_count--; 1730 } 1731 1732 /** 1733 * sym2_io_error_detected() - called when PCI error is detected 1734 * @pdev: pointer to PCI device 1735 * @state: current state of the PCI slot 1736 */ 1737 static pci_ers_result_t sym2_io_error_detected(struct pci_dev *pdev, 1738 pci_channel_state_t state) 1739 { 1740 /* If slot is permanently frozen, turn everything off */ 1741 if (state == pci_channel_io_perm_failure) { 1742 sym2_remove(pdev); 1743 return PCI_ERS_RESULT_DISCONNECT; 1744 } 1745 1746 disable_irq(pdev->irq); 1747 pci_disable_device(pdev); 1748 1749 /* Request that MMIO be enabled, so register dump can be taken. */ 1750 return PCI_ERS_RESULT_CAN_RECOVER; 1751 } 1752 1753 /** 1754 * sym2_io_slot_dump - Enable MMIO and dump debug registers 1755 * @pdev: pointer to PCI device 1756 */ 1757 static pci_ers_result_t sym2_io_slot_dump(struct pci_dev *pdev) 1758 { 1759 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1760 1761 sym_dump_registers(shost); 1762 1763 /* Request a slot reset. */ 1764 return PCI_ERS_RESULT_NEED_RESET; 1765 } 1766 1767 /** 1768 * sym2_reset_workarounds - hardware-specific work-arounds 1769 * @pdev: pointer to PCI device 1770 * 1771 * This routine is similar to sym_set_workarounds(), except 1772 * that, at this point, we already know that the device was 1773 * successfully initialized at least once before, and so most 1774 * of the steps taken there are un-needed here. 1775 */ 1776 static void sym2_reset_workarounds(struct pci_dev *pdev) 1777 { 1778 u_short status_reg; 1779 struct sym_chip *chip; 1780 1781 chip = sym_lookup_chip_table(pdev->device, pdev->revision); 1782 1783 /* Work around for errant bit in 895A, in a fashion 1784 * similar to what is done in sym_set_workarounds(). 1785 */ 1786 pci_read_config_word(pdev, PCI_STATUS, &status_reg); 1787 if (!(chip->features & FE_66MHZ) && (status_reg & PCI_STATUS_66MHZ)) { 1788 status_reg = PCI_STATUS_66MHZ; 1789 pci_write_config_word(pdev, PCI_STATUS, status_reg); 1790 pci_read_config_word(pdev, PCI_STATUS, &status_reg); 1791 } 1792 } 1793 1794 /** 1795 * sym2_io_slot_reset() - called when the pci bus has been reset. 1796 * @pdev: pointer to PCI device 1797 * 1798 * Restart the card from scratch. 1799 */ 1800 static pci_ers_result_t sym2_io_slot_reset(struct pci_dev *pdev) 1801 { 1802 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1803 struct sym_hcb *np = sym_get_hcb(shost); 1804 1805 printk(KERN_INFO "%s: recovering from a PCI slot reset\n", 1806 sym_name(np)); 1807 1808 if (pci_enable_device(pdev)) { 1809 printk(KERN_ERR "%s: Unable to enable after PCI reset\n", 1810 sym_name(np)); 1811 return PCI_ERS_RESULT_DISCONNECT; 1812 } 1813 1814 pci_set_master(pdev); 1815 enable_irq(pdev->irq); 1816 1817 /* If the chip can do Memory Write Invalidate, enable it */ 1818 if (np->features & FE_WRIE) { 1819 if (pci_set_mwi(pdev)) 1820 return PCI_ERS_RESULT_DISCONNECT; 1821 } 1822 1823 /* Perform work-arounds, analogous to sym_set_workarounds() */ 1824 sym2_reset_workarounds(pdev); 1825 1826 /* Perform host reset only on one instance of the card */ 1827 if (PCI_FUNC(pdev->devfn) == 0) { 1828 if (sym_reset_scsi_bus(np, 0)) { 1829 printk(KERN_ERR "%s: Unable to reset scsi host\n", 1830 sym_name(np)); 1831 return PCI_ERS_RESULT_DISCONNECT; 1832 } 1833 sym_start_up(shost, 1); 1834 } 1835 1836 return PCI_ERS_RESULT_RECOVERED; 1837 } 1838 1839 /** 1840 * sym2_io_resume() - resume normal ops after PCI reset 1841 * @pdev: pointer to PCI device 1842 * 1843 * Called when the error recovery driver tells us that its 1844 * OK to resume normal operation. Use completion to allow 1845 * halted scsi ops to resume. 1846 */ 1847 static void sym2_io_resume(struct pci_dev *pdev) 1848 { 1849 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1850 struct sym_data *sym_data = shost_priv(shost); 1851 1852 spin_lock_irq(shost->host_lock); 1853 if (sym_data->io_reset) 1854 complete(sym_data->io_reset); 1855 spin_unlock_irq(shost->host_lock); 1856 } 1857 1858 static void sym2_get_signalling(struct Scsi_Host *shost) 1859 { 1860 struct sym_hcb *np = sym_get_hcb(shost); 1861 enum spi_signal_type type; 1862 1863 switch (np->scsi_mode) { 1864 case SMODE_SE: 1865 type = SPI_SIGNAL_SE; 1866 break; 1867 case SMODE_LVD: 1868 type = SPI_SIGNAL_LVD; 1869 break; 1870 case SMODE_HVD: 1871 type = SPI_SIGNAL_HVD; 1872 break; 1873 default: 1874 type = SPI_SIGNAL_UNKNOWN; 1875 break; 1876 } 1877 spi_signalling(shost) = type; 1878 } 1879 1880 static void sym2_set_offset(struct scsi_target *starget, int offset) 1881 { 1882 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1883 struct sym_hcb *np = sym_get_hcb(shost); 1884 struct sym_tcb *tp = &np->target[starget->id]; 1885 1886 tp->tgoal.offset = offset; 1887 tp->tgoal.check_nego = 1; 1888 } 1889 1890 static void sym2_set_period(struct scsi_target *starget, int period) 1891 { 1892 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1893 struct sym_hcb *np = sym_get_hcb(shost); 1894 struct sym_tcb *tp = &np->target[starget->id]; 1895 1896 /* have to have DT for these transfers, but DT will also 1897 * set width, so check that this is allowed */ 1898 if (period <= np->minsync && spi_width(starget)) 1899 tp->tgoal.dt = 1; 1900 1901 tp->tgoal.period = period; 1902 tp->tgoal.check_nego = 1; 1903 } 1904 1905 static void sym2_set_width(struct scsi_target *starget, int width) 1906 { 1907 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1908 struct sym_hcb *np = sym_get_hcb(shost); 1909 struct sym_tcb *tp = &np->target[starget->id]; 1910 1911 /* It is illegal to have DT set on narrow transfers. If DT is 1912 * clear, we must also clear IU and QAS. */ 1913 if (width == 0) 1914 tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; 1915 1916 tp->tgoal.width = width; 1917 tp->tgoal.check_nego = 1; 1918 } 1919 1920 static void sym2_set_dt(struct scsi_target *starget, int dt) 1921 { 1922 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1923 struct sym_hcb *np = sym_get_hcb(shost); 1924 struct sym_tcb *tp = &np->target[starget->id]; 1925 1926 /* We must clear QAS and IU if DT is clear */ 1927 if (dt) 1928 tp->tgoal.dt = 1; 1929 else 1930 tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; 1931 tp->tgoal.check_nego = 1; 1932 } 1933 1934 #if 0 1935 static void sym2_set_iu(struct scsi_target *starget, int iu) 1936 { 1937 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1938 struct sym_hcb *np = sym_get_hcb(shost); 1939 struct sym_tcb *tp = &np->target[starget->id]; 1940 1941 if (iu) 1942 tp->tgoal.iu = tp->tgoal.dt = 1; 1943 else 1944 tp->tgoal.iu = 0; 1945 tp->tgoal.check_nego = 1; 1946 } 1947 1948 static void sym2_set_qas(struct scsi_target *starget, int qas) 1949 { 1950 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1951 struct sym_hcb *np = sym_get_hcb(shost); 1952 struct sym_tcb *tp = &np->target[starget->id]; 1953 1954 if (qas) 1955 tp->tgoal.dt = tp->tgoal.qas = 1; 1956 else 1957 tp->tgoal.qas = 0; 1958 tp->tgoal.check_nego = 1; 1959 } 1960 #endif 1961 1962 static struct spi_function_template sym2_transport_functions = { 1963 .set_offset = sym2_set_offset, 1964 .show_offset = 1, 1965 .set_period = sym2_set_period, 1966 .show_period = 1, 1967 .set_width = sym2_set_width, 1968 .show_width = 1, 1969 .set_dt = sym2_set_dt, 1970 .show_dt = 1, 1971 #if 0 1972 .set_iu = sym2_set_iu, 1973 .show_iu = 1, 1974 .set_qas = sym2_set_qas, 1975 .show_qas = 1, 1976 #endif 1977 .get_signalling = sym2_get_signalling, 1978 }; 1979 1980 static struct pci_device_id sym2_id_table[] = { 1981 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810, 1982 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 1983 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820, 1984 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ 1985 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C825, 1986 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 1987 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C815, 1988 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 1989 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C810AP, 1990 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ 1991 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860, 1992 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 1993 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510, 1994 PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, 1995 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896, 1996 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 1997 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895, 1998 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 1999 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C885, 2000 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2001 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875, 2002 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2003 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C1510, 2004 PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, /* new */ 2005 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C895A, 2006 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2007 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C875A, 2008 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2009 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_33, 2010 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2011 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_66, 2012 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2013 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875J, 2014 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2015 { 0, } 2016 }; 2017 2018 MODULE_DEVICE_TABLE(pci, sym2_id_table); 2019 2020 static const struct pci_error_handlers sym2_err_handler = { 2021 .error_detected = sym2_io_error_detected, 2022 .mmio_enabled = sym2_io_slot_dump, 2023 .slot_reset = sym2_io_slot_reset, 2024 .resume = sym2_io_resume, 2025 }; 2026 2027 static struct pci_driver sym2_driver = { 2028 .name = NAME53C8XX, 2029 .id_table = sym2_id_table, 2030 .probe = sym2_probe, 2031 .remove = sym2_remove, 2032 .err_handler = &sym2_err_handler, 2033 }; 2034 2035 static int __init sym2_init(void) 2036 { 2037 int error; 2038 2039 sym2_setup_params(); 2040 sym2_transport_template = spi_attach_transport(&sym2_transport_functions); 2041 if (!sym2_transport_template) 2042 return -ENODEV; 2043 2044 error = pci_register_driver(&sym2_driver); 2045 if (error) 2046 spi_release_transport(sym2_transport_template); 2047 return error; 2048 } 2049 2050 static void __exit sym2_exit(void) 2051 { 2052 pci_unregister_driver(&sym2_driver); 2053 spi_release_transport(sym2_transport_template); 2054 } 2055 2056 module_init(sym2_init); 2057 module_exit(sym2_exit); 2058