1 /* 2 * Device driver for the SYMBIOS/LSILOGIC 53C8XX and 53C1010 family 3 * of PCI-SCSI IO processors. 4 * 5 * Copyright (C) 1999-2001 Gerard Roudier <groudier@free.fr> 6 * Copyright (c) 2003-2005 Matthew Wilcox <matthew@wil.cx> 7 * 8 * This driver is derived from the Linux sym53c8xx driver. 9 * Copyright (C) 1998-2000 Gerard Roudier 10 * 11 * The sym53c8xx driver is derived from the ncr53c8xx driver that had been 12 * a port of the FreeBSD ncr driver to Linux-1.2.13. 13 * 14 * The original ncr driver has been written for 386bsd and FreeBSD by 15 * Wolfgang Stanglmeier <wolf@cologne.de> 16 * Stefan Esser <se@mi.Uni-Koeln.de> 17 * Copyright (C) 1994 Wolfgang Stanglmeier 18 * 19 * Other major contributions: 20 * 21 * NVRAM detection and reading. 22 * Copyright (C) 1997 Richard Waltham <dormouse@farsrobt.demon.co.uk> 23 * 24 *----------------------------------------------------------------------------- 25 * 26 * This program is free software; you can redistribute it and/or modify 27 * it under the terms of the GNU General Public License as published by 28 * the Free Software Foundation; either version 2 of the License, or 29 * (at your option) any later version. 30 * 31 * This program is distributed in the hope that it will be useful, 32 * but WITHOUT ANY WARRANTY; without even the implied warranty of 33 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 34 * GNU General Public License for more details. 35 * 36 * You should have received a copy of the GNU General Public License 37 * along with this program; if not, write to the Free Software 38 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA 39 */ 40 #include <linux/ctype.h> 41 #include <linux/init.h> 42 #include <linux/module.h> 43 #include <linux/moduleparam.h> 44 #include <linux/spinlock.h> 45 #include <scsi/scsi.h> 46 #include <scsi/scsi_tcq.h> 47 #include <scsi/scsi_device.h> 48 #include <scsi/scsi_transport.h> 49 50 #include "sym_glue.h" 51 #include "sym_nvram.h" 52 53 #define NAME53C "sym53c" 54 #define NAME53C8XX "sym53c8xx" 55 56 struct sym_driver_setup sym_driver_setup = SYM_LINUX_DRIVER_SETUP; 57 unsigned int sym_debug_flags = 0; 58 59 static char *excl_string; 60 static char *safe_string; 61 module_param_named(cmd_per_lun, sym_driver_setup.max_tag, ushort, 0); 62 module_param_named(burst, sym_driver_setup.burst_order, byte, 0); 63 module_param_named(led, sym_driver_setup.scsi_led, byte, 0); 64 module_param_named(diff, sym_driver_setup.scsi_diff, byte, 0); 65 module_param_named(irqm, sym_driver_setup.irq_mode, byte, 0); 66 module_param_named(buschk, sym_driver_setup.scsi_bus_check, byte, 0); 67 module_param_named(hostid, sym_driver_setup.host_id, byte, 0); 68 module_param_named(verb, sym_driver_setup.verbose, byte, 0); 69 module_param_named(debug, sym_debug_flags, uint, 0); 70 module_param_named(settle, sym_driver_setup.settle_delay, byte, 0); 71 module_param_named(nvram, sym_driver_setup.use_nvram, byte, 0); 72 module_param_named(excl, excl_string, charp, 0); 73 module_param_named(safe, safe_string, charp, 0); 74 75 MODULE_PARM_DESC(cmd_per_lun, "The maximum number of tags to use by default"); 76 MODULE_PARM_DESC(burst, "Maximum burst. 0 to disable, 255 to read from registers"); 77 MODULE_PARM_DESC(led, "Set to 1 to enable LED support"); 78 MODULE_PARM_DESC(diff, "0 for no differential mode, 1 for BIOS, 2 for always, 3 for not GPIO3"); 79 MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole"); 80 MODULE_PARM_DESC(buschk, "0 to not check, 1 for detach on error, 2 for warn on error"); 81 MODULE_PARM_DESC(hostid, "The SCSI ID to use for the host adapters"); 82 MODULE_PARM_DESC(verb, "0 for minimal verbosity, 1 for normal, 2 for excessive"); 83 MODULE_PARM_DESC(debug, "Set bits to enable debugging"); 84 MODULE_PARM_DESC(settle, "Settle delay in seconds. Default 3"); 85 MODULE_PARM_DESC(nvram, "Option currently not used"); 86 MODULE_PARM_DESC(excl, "List ioport addresses here to prevent controllers from being attached"); 87 MODULE_PARM_DESC(safe, "Set other settings to a \"safe mode\""); 88 89 MODULE_LICENSE("GPL"); 90 MODULE_VERSION(SYM_VERSION); 91 MODULE_AUTHOR("Matthew Wilcox <matthew@wil.cx>"); 92 MODULE_DESCRIPTION("NCR, Symbios and LSI 8xx and 1010 PCI SCSI adapters"); 93 94 static void sym2_setup_params(void) 95 { 96 char *p = excl_string; 97 int xi = 0; 98 99 while (p && (xi < 8)) { 100 char *next_p; 101 int val = (int) simple_strtoul(p, &next_p, 0); 102 sym_driver_setup.excludes[xi++] = val; 103 p = next_p; 104 } 105 106 if (safe_string) { 107 if (*safe_string == 'y') { 108 sym_driver_setup.max_tag = 0; 109 sym_driver_setup.burst_order = 0; 110 sym_driver_setup.scsi_led = 0; 111 sym_driver_setup.scsi_diff = 1; 112 sym_driver_setup.irq_mode = 0; 113 sym_driver_setup.scsi_bus_check = 2; 114 sym_driver_setup.host_id = 7; 115 sym_driver_setup.verbose = 2; 116 sym_driver_setup.settle_delay = 10; 117 sym_driver_setup.use_nvram = 1; 118 } else if (*safe_string != 'n') { 119 printk(KERN_WARNING NAME53C8XX "Ignoring parameter %s" 120 " passed to safe option", safe_string); 121 } 122 } 123 } 124 125 static struct scsi_transport_template *sym2_transport_template = NULL; 126 127 /* 128 * Driver private area in the SCSI command structure. 129 */ 130 struct sym_ucmd { /* Override the SCSI pointer structure */ 131 struct completion *eh_done; /* SCSI error handling */ 132 }; 133 134 #define SYM_UCMD_PTR(cmd) ((struct sym_ucmd *)(&(cmd)->SCp)) 135 #define SYM_SOFTC_PTR(cmd) sym_get_hcb(cmd->device->host) 136 137 /* 138 * Complete a pending CAM CCB. 139 */ 140 void sym_xpt_done(struct sym_hcb *np, struct scsi_cmnd *cmd) 141 { 142 struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); 143 BUILD_BUG_ON(sizeof(struct scsi_pointer) < sizeof(struct sym_ucmd)); 144 145 if (ucmd->eh_done) 146 complete(ucmd->eh_done); 147 148 scsi_dma_unmap(cmd); 149 cmd->scsi_done(cmd); 150 } 151 152 /* 153 * Tell the SCSI layer about a BUS RESET. 154 */ 155 void sym_xpt_async_bus_reset(struct sym_hcb *np) 156 { 157 printf_notice("%s: SCSI BUS has been reset.\n", sym_name(np)); 158 np->s.settle_time = jiffies + sym_driver_setup.settle_delay * HZ; 159 np->s.settle_time_valid = 1; 160 if (sym_verbose >= 2) 161 printf_info("%s: command processing suspended for %d seconds\n", 162 sym_name(np), sym_driver_setup.settle_delay); 163 } 164 165 /* 166 * Choose the more appropriate CAM status if 167 * the IO encountered an extended error. 168 */ 169 static int sym_xerr_cam_status(int cam_status, int x_status) 170 { 171 if (x_status) { 172 if (x_status & XE_PARITY_ERR) 173 cam_status = DID_PARITY; 174 else if (x_status &(XE_EXTRA_DATA|XE_SODL_UNRUN|XE_SWIDE_OVRUN)) 175 cam_status = DID_ERROR; 176 else if (x_status & XE_BAD_PHASE) 177 cam_status = DID_ERROR; 178 else 179 cam_status = DID_ERROR; 180 } 181 return cam_status; 182 } 183 184 /* 185 * Build CAM result for a failed or auto-sensed IO. 186 */ 187 void sym_set_cam_result_error(struct sym_hcb *np, struct sym_ccb *cp, int resid) 188 { 189 struct scsi_cmnd *cmd = cp->cmd; 190 u_int cam_status, scsi_status, drv_status; 191 192 drv_status = 0; 193 cam_status = DID_OK; 194 scsi_status = cp->ssss_status; 195 196 if (cp->host_flags & HF_SENSE) { 197 scsi_status = cp->sv_scsi_status; 198 resid = cp->sv_resid; 199 if (sym_verbose && cp->sv_xerr_status) 200 sym_print_xerr(cmd, cp->sv_xerr_status); 201 if (cp->host_status == HS_COMPLETE && 202 cp->ssss_status == S_GOOD && 203 cp->xerr_status == 0) { 204 cam_status = sym_xerr_cam_status(DID_OK, 205 cp->sv_xerr_status); 206 drv_status = DRIVER_SENSE; 207 /* 208 * Bounce back the sense data to user. 209 */ 210 memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE); 211 memcpy(cmd->sense_buffer, cp->sns_bbuf, 212 min(SCSI_SENSE_BUFFERSIZE, SYM_SNS_BBUF_LEN)); 213 #if 0 214 /* 215 * If the device reports a UNIT ATTENTION condition 216 * due to a RESET condition, we should consider all 217 * disconnect CCBs for this unit as aborted. 218 */ 219 if (1) { 220 u_char *p; 221 p = (u_char *) cmd->sense_data; 222 if (p[0]==0x70 && p[2]==0x6 && p[12]==0x29) 223 sym_clear_tasks(np, DID_ABORT, 224 cp->target,cp->lun, -1); 225 } 226 #endif 227 } else { 228 /* 229 * Error return from our internal request sense. This 230 * is bad: we must clear the contingent allegiance 231 * condition otherwise the device will always return 232 * BUSY. Use a big stick. 233 */ 234 sym_reset_scsi_target(np, cmd->device->id); 235 cam_status = DID_ERROR; 236 } 237 } else if (cp->host_status == HS_COMPLETE) /* Bad SCSI status */ 238 cam_status = DID_OK; 239 else if (cp->host_status == HS_SEL_TIMEOUT) /* Selection timeout */ 240 cam_status = DID_NO_CONNECT; 241 else if (cp->host_status == HS_UNEXPECTED) /* Unexpected BUS FREE*/ 242 cam_status = DID_ERROR; 243 else { /* Extended error */ 244 if (sym_verbose) { 245 sym_print_addr(cmd, "COMMAND FAILED (%x %x %x).\n", 246 cp->host_status, cp->ssss_status, 247 cp->xerr_status); 248 } 249 /* 250 * Set the most appropriate value for CAM status. 251 */ 252 cam_status = sym_xerr_cam_status(DID_ERROR, cp->xerr_status); 253 } 254 scsi_set_resid(cmd, resid); 255 cmd->result = (drv_status << 24) + (cam_status << 16) + scsi_status; 256 } 257 258 static int sym_scatter(struct sym_hcb *np, struct sym_ccb *cp, struct scsi_cmnd *cmd) 259 { 260 int segment; 261 int use_sg; 262 263 cp->data_len = 0; 264 265 use_sg = scsi_dma_map(cmd); 266 if (use_sg > 0) { 267 struct scatterlist *sg; 268 struct sym_tcb *tp = &np->target[cp->target]; 269 struct sym_tblmove *data; 270 271 if (use_sg > SYM_CONF_MAX_SG) { 272 scsi_dma_unmap(cmd); 273 return -1; 274 } 275 276 data = &cp->phys.data[SYM_CONF_MAX_SG - use_sg]; 277 278 scsi_for_each_sg(cmd, sg, use_sg, segment) { 279 dma_addr_t baddr = sg_dma_address(sg); 280 unsigned int len = sg_dma_len(sg); 281 282 if ((len & 1) && (tp->head.wval & EWS)) { 283 len++; 284 cp->odd_byte_adjustment++; 285 } 286 287 sym_build_sge(np, &data[segment], baddr, len); 288 cp->data_len += len; 289 } 290 } else { 291 segment = -2; 292 } 293 294 return segment; 295 } 296 297 /* 298 * Queue a SCSI command. 299 */ 300 static int sym_queue_command(struct sym_hcb *np, struct scsi_cmnd *cmd) 301 { 302 struct scsi_device *sdev = cmd->device; 303 struct sym_tcb *tp; 304 struct sym_lcb *lp; 305 struct sym_ccb *cp; 306 int order; 307 308 /* 309 * Retrieve the target descriptor. 310 */ 311 tp = &np->target[sdev->id]; 312 313 /* 314 * Select tagged/untagged. 315 */ 316 lp = sym_lp(tp, sdev->lun); 317 order = (lp && lp->s.reqtags) ? M_SIMPLE_TAG : 0; 318 319 /* 320 * Queue the SCSI IO. 321 */ 322 cp = sym_get_ccb(np, cmd, order); 323 if (!cp) 324 return 1; /* Means resource shortage */ 325 sym_queue_scsiio(np, cmd, cp); 326 return 0; 327 } 328 329 /* 330 * Setup buffers and pointers that address the CDB. 331 */ 332 static inline int sym_setup_cdb(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) 333 { 334 memcpy(cp->cdb_buf, cmd->cmnd, cmd->cmd_len); 335 336 cp->phys.cmd.addr = CCB_BA(cp, cdb_buf[0]); 337 cp->phys.cmd.size = cpu_to_scr(cmd->cmd_len); 338 339 return 0; 340 } 341 342 /* 343 * Setup pointers that address the data and start the I/O. 344 */ 345 int sym_setup_data_and_start(struct sym_hcb *np, struct scsi_cmnd *cmd, struct sym_ccb *cp) 346 { 347 u32 lastp, goalp; 348 int dir; 349 350 /* 351 * Build the CDB. 352 */ 353 if (sym_setup_cdb(np, cmd, cp)) 354 goto out_abort; 355 356 /* 357 * No direction means no data. 358 */ 359 dir = cmd->sc_data_direction; 360 if (dir != DMA_NONE) { 361 cp->segments = sym_scatter(np, cp, cmd); 362 if (cp->segments < 0) { 363 sym_set_cam_status(cmd, DID_ERROR); 364 goto out_abort; 365 } 366 367 /* 368 * No segments means no data. 369 */ 370 if (!cp->segments) 371 dir = DMA_NONE; 372 } else { 373 cp->data_len = 0; 374 cp->segments = 0; 375 } 376 377 /* 378 * Set the data pointer. 379 */ 380 switch (dir) { 381 case DMA_BIDIRECTIONAL: 382 scmd_printk(KERN_INFO, cmd, "got DMA_BIDIRECTIONAL command"); 383 sym_set_cam_status(cmd, DID_ERROR); 384 goto out_abort; 385 case DMA_TO_DEVICE: 386 goalp = SCRIPTA_BA(np, data_out2) + 8; 387 lastp = goalp - 8 - (cp->segments * (2*4)); 388 break; 389 case DMA_FROM_DEVICE: 390 cp->host_flags |= HF_DATA_IN; 391 goalp = SCRIPTA_BA(np, data_in2) + 8; 392 lastp = goalp - 8 - (cp->segments * (2*4)); 393 break; 394 case DMA_NONE: 395 default: 396 lastp = goalp = SCRIPTB_BA(np, no_data); 397 break; 398 } 399 400 /* 401 * Set all pointers values needed by SCRIPTS. 402 */ 403 cp->phys.head.lastp = cpu_to_scr(lastp); 404 cp->phys.head.savep = cpu_to_scr(lastp); 405 cp->startp = cp->phys.head.savep; 406 cp->goalp = cpu_to_scr(goalp); 407 408 /* 409 * When `#ifed 1', the code below makes the driver 410 * panic on the first attempt to write to a SCSI device. 411 * It is the first test we want to do after a driver 412 * change that does not seem obviously safe. :) 413 */ 414 #if 0 415 switch (cp->cdb_buf[0]) { 416 case 0x0A: case 0x2A: case 0xAA: 417 panic("XXXXXXXXXXXXX WRITE NOT YET ALLOWED XXXXXXXXXXXXXX\n"); 418 break; 419 default: 420 break; 421 } 422 #endif 423 424 /* 425 * activate this job. 426 */ 427 sym_put_start_queue(np, cp); 428 return 0; 429 430 out_abort: 431 sym_free_ccb(np, cp); 432 sym_xpt_done(np, cmd); 433 return 0; 434 } 435 436 437 /* 438 * timer daemon. 439 * 440 * Misused to keep the driver running when 441 * interrupts are not configured correctly. 442 */ 443 static void sym_timer(struct sym_hcb *np) 444 { 445 unsigned long thistime = jiffies; 446 447 /* 448 * Restart the timer. 449 */ 450 np->s.timer.expires = thistime + SYM_CONF_TIMER_INTERVAL; 451 add_timer(&np->s.timer); 452 453 /* 454 * If we are resetting the ncr, wait for settle_time before 455 * clearing it. Then command processing will be resumed. 456 */ 457 if (np->s.settle_time_valid) { 458 if (time_before_eq(np->s.settle_time, thistime)) { 459 if (sym_verbose >= 2 ) 460 printk("%s: command processing resumed\n", 461 sym_name(np)); 462 np->s.settle_time_valid = 0; 463 } 464 return; 465 } 466 467 /* 468 * Nothing to do for now, but that may come. 469 */ 470 if (np->s.lasttime + 4*HZ < thistime) { 471 np->s.lasttime = thistime; 472 } 473 474 #ifdef SYM_CONF_PCIQ_MAY_MISS_COMPLETIONS 475 /* 476 * Some way-broken PCI bridges may lead to 477 * completions being lost when the clearing 478 * of the INTFLY flag by the CPU occurs 479 * concurrently with the chip raising this flag. 480 * If this ever happen, lost completions will 481 * be reaped here. 482 */ 483 sym_wakeup_done(np); 484 #endif 485 } 486 487 488 /* 489 * PCI BUS error handler. 490 */ 491 void sym_log_bus_error(struct Scsi_Host *shost) 492 { 493 struct sym_data *sym_data = shost_priv(shost); 494 struct pci_dev *pdev = sym_data->pdev; 495 unsigned short pci_sts; 496 pci_read_config_word(pdev, PCI_STATUS, &pci_sts); 497 if (pci_sts & 0xf900) { 498 pci_write_config_word(pdev, PCI_STATUS, pci_sts); 499 shost_printk(KERN_WARNING, shost, 500 "PCI bus error: status = 0x%04x\n", pci_sts & 0xf900); 501 } 502 } 503 504 /* 505 * queuecommand method. Entered with the host adapter lock held and 506 * interrupts disabled. 507 */ 508 static int sym53c8xx_queue_command(struct scsi_cmnd *cmd, 509 void (*done)(struct scsi_cmnd *)) 510 { 511 struct sym_hcb *np = SYM_SOFTC_PTR(cmd); 512 struct sym_ucmd *ucp = SYM_UCMD_PTR(cmd); 513 int sts = 0; 514 515 cmd->scsi_done = done; 516 memset(ucp, 0, sizeof(*ucp)); 517 518 /* 519 * Shorten our settle_time if needed for 520 * this command not to time out. 521 */ 522 if (np->s.settle_time_valid && cmd->timeout_per_command) { 523 unsigned long tlimit = jiffies + cmd->timeout_per_command; 524 tlimit -= SYM_CONF_TIMER_INTERVAL*2; 525 if (time_after(np->s.settle_time, tlimit)) { 526 np->s.settle_time = tlimit; 527 } 528 } 529 530 if (np->s.settle_time_valid) 531 return SCSI_MLQUEUE_HOST_BUSY; 532 533 sts = sym_queue_command(np, cmd); 534 if (sts) 535 return SCSI_MLQUEUE_HOST_BUSY; 536 return 0; 537 } 538 539 /* 540 * Linux entry point of the interrupt handler. 541 */ 542 static irqreturn_t sym53c8xx_intr(int irq, void *dev_id) 543 { 544 struct Scsi_Host *shost = dev_id; 545 struct sym_data *sym_data = shost_priv(shost); 546 irqreturn_t result; 547 548 /* Avoid spinloop trying to handle interrupts on frozen device */ 549 if (pci_channel_offline(sym_data->pdev)) 550 return IRQ_NONE; 551 552 if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("["); 553 554 spin_lock(shost->host_lock); 555 result = sym_interrupt(shost); 556 spin_unlock(shost->host_lock); 557 558 if (DEBUG_FLAGS & DEBUG_TINY) printf_debug ("]\n"); 559 560 return result; 561 } 562 563 /* 564 * Linux entry point of the timer handler 565 */ 566 static void sym53c8xx_timer(unsigned long npref) 567 { 568 struct sym_hcb *np = (struct sym_hcb *)npref; 569 unsigned long flags; 570 571 spin_lock_irqsave(np->s.host->host_lock, flags); 572 sym_timer(np); 573 spin_unlock_irqrestore(np->s.host->host_lock, flags); 574 } 575 576 577 /* 578 * What the eh thread wants us to perform. 579 */ 580 #define SYM_EH_ABORT 0 581 #define SYM_EH_DEVICE_RESET 1 582 #define SYM_EH_BUS_RESET 2 583 #define SYM_EH_HOST_RESET 3 584 585 /* 586 * Generic method for our eh processing. 587 * The 'op' argument tells what we have to do. 588 */ 589 static int sym_eh_handler(int op, char *opname, struct scsi_cmnd *cmd) 590 { 591 struct sym_ucmd *ucmd = SYM_UCMD_PTR(cmd); 592 struct Scsi_Host *shost = cmd->device->host; 593 struct sym_data *sym_data = shost_priv(shost); 594 struct pci_dev *pdev = sym_data->pdev; 595 struct sym_hcb *np = sym_data->ncb; 596 SYM_QUEHEAD *qp; 597 int cmd_queued = 0; 598 int sts = -1; 599 struct completion eh_done; 600 601 scmd_printk(KERN_WARNING, cmd, "%s operation started\n", opname); 602 603 /* We may be in an error condition because the PCI bus 604 * went down. In this case, we need to wait until the 605 * PCI bus is reset, the card is reset, and only then 606 * proceed with the scsi error recovery. There's no 607 * point in hurrying; take a leisurely wait. 608 */ 609 #define WAIT_FOR_PCI_RECOVERY 35 610 if (pci_channel_offline(pdev)) { 611 int finished_reset = 0; 612 init_completion(&eh_done); 613 spin_lock_irq(shost->host_lock); 614 /* Make sure we didn't race */ 615 if (pci_channel_offline(pdev)) { 616 BUG_ON(sym_data->io_reset); 617 sym_data->io_reset = &eh_done; 618 } else { 619 finished_reset = 1; 620 } 621 spin_unlock_irq(shost->host_lock); 622 if (!finished_reset) 623 finished_reset = wait_for_completion_timeout 624 (sym_data->io_reset, 625 WAIT_FOR_PCI_RECOVERY*HZ); 626 spin_lock_irq(shost->host_lock); 627 sym_data->io_reset = NULL; 628 spin_unlock_irq(shost->host_lock); 629 if (!finished_reset) 630 return SCSI_FAILED; 631 } 632 633 spin_lock_irq(shost->host_lock); 634 /* This one is queued in some place -> to wait for completion */ 635 FOR_EACH_QUEUED_ELEMENT(&np->busy_ccbq, qp) { 636 struct sym_ccb *cp = sym_que_entry(qp, struct sym_ccb, link_ccbq); 637 if (cp->cmd == cmd) { 638 cmd_queued = 1; 639 break; 640 } 641 } 642 643 /* Try to proceed the operation we have been asked for */ 644 sts = -1; 645 switch(op) { 646 case SYM_EH_ABORT: 647 sts = sym_abort_scsiio(np, cmd, 1); 648 break; 649 case SYM_EH_DEVICE_RESET: 650 sts = sym_reset_scsi_target(np, cmd->device->id); 651 break; 652 case SYM_EH_BUS_RESET: 653 sym_reset_scsi_bus(np, 1); 654 sts = 0; 655 break; 656 case SYM_EH_HOST_RESET: 657 sym_reset_scsi_bus(np, 0); 658 sym_start_up(shost, 1); 659 sts = 0; 660 break; 661 default: 662 break; 663 } 664 665 /* On error, restore everything and cross fingers :) */ 666 if (sts) 667 cmd_queued = 0; 668 669 if (cmd_queued) { 670 init_completion(&eh_done); 671 ucmd->eh_done = &eh_done; 672 spin_unlock_irq(shost->host_lock); 673 if (!wait_for_completion_timeout(&eh_done, 5*HZ)) { 674 ucmd->eh_done = NULL; 675 sts = -2; 676 } 677 } else { 678 spin_unlock_irq(shost->host_lock); 679 } 680 681 dev_warn(&cmd->device->sdev_gendev, "%s operation %s.\n", opname, 682 sts==0 ? "complete" :sts==-2 ? "timed-out" : "failed"); 683 return sts ? SCSI_FAILED : SCSI_SUCCESS; 684 } 685 686 687 /* 688 * Error handlers called from the eh thread (one thread per HBA). 689 */ 690 static int sym53c8xx_eh_abort_handler(struct scsi_cmnd *cmd) 691 { 692 return sym_eh_handler(SYM_EH_ABORT, "ABORT", cmd); 693 } 694 695 static int sym53c8xx_eh_device_reset_handler(struct scsi_cmnd *cmd) 696 { 697 return sym_eh_handler(SYM_EH_DEVICE_RESET, "DEVICE RESET", cmd); 698 } 699 700 static int sym53c8xx_eh_bus_reset_handler(struct scsi_cmnd *cmd) 701 { 702 return sym_eh_handler(SYM_EH_BUS_RESET, "BUS RESET", cmd); 703 } 704 705 static int sym53c8xx_eh_host_reset_handler(struct scsi_cmnd *cmd) 706 { 707 return sym_eh_handler(SYM_EH_HOST_RESET, "HOST RESET", cmd); 708 } 709 710 /* 711 * Tune device queuing depth, according to various limits. 712 */ 713 static void sym_tune_dev_queuing(struct sym_tcb *tp, int lun, u_short reqtags) 714 { 715 struct sym_lcb *lp = sym_lp(tp, lun); 716 u_short oldtags; 717 718 if (!lp) 719 return; 720 721 oldtags = lp->s.reqtags; 722 723 if (reqtags > lp->s.scdev_depth) 724 reqtags = lp->s.scdev_depth; 725 726 lp->s.reqtags = reqtags; 727 728 if (reqtags != oldtags) { 729 dev_info(&tp->starget->dev, 730 "tagged command queuing %s, command queue depth %d.\n", 731 lp->s.reqtags ? "enabled" : "disabled", reqtags); 732 } 733 } 734 735 static int sym53c8xx_slave_alloc(struct scsi_device *sdev) 736 { 737 struct sym_hcb *np = sym_get_hcb(sdev->host); 738 struct sym_tcb *tp = &np->target[sdev->id]; 739 struct sym_lcb *lp; 740 741 if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN) 742 return -ENXIO; 743 744 tp->starget = sdev->sdev_target; 745 /* 746 * Fail the device init if the device is flagged NOSCAN at BOOT in 747 * the NVRAM. This may speed up boot and maintain coherency with 748 * BIOS device numbering. Clearing the flag allows the user to 749 * rescan skipped devices later. We also return an error for 750 * devices not flagged for SCAN LUNS in the NVRAM since some single 751 * lun devices behave badly when asked for a non zero LUN. 752 */ 753 754 if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) { 755 tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED; 756 starget_printk(KERN_INFO, tp->starget, 757 "Scan at boot disabled in NVRAM\n"); 758 return -ENXIO; 759 } 760 761 if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) { 762 if (sdev->lun != 0) 763 return -ENXIO; 764 starget_printk(KERN_INFO, tp->starget, 765 "Multiple LUNs disabled in NVRAM\n"); 766 } 767 768 lp = sym_alloc_lcb(np, sdev->id, sdev->lun); 769 if (!lp) 770 return -ENOMEM; 771 772 spi_min_period(tp->starget) = tp->usr_period; 773 spi_max_width(tp->starget) = tp->usr_width; 774 775 return 0; 776 } 777 778 /* 779 * Linux entry point for device queue sizing. 780 */ 781 static int sym53c8xx_slave_configure(struct scsi_device *sdev) 782 { 783 struct sym_hcb *np = sym_get_hcb(sdev->host); 784 struct sym_tcb *tp = &np->target[sdev->id]; 785 struct sym_lcb *lp = sym_lp(tp, sdev->lun); 786 int reqtags, depth_to_use; 787 788 /* 789 * Get user flags. 790 */ 791 lp->curr_flags = lp->user_flags; 792 793 /* 794 * Select queue depth from driver setup. 795 * Donnot use more than configured by user. 796 * Use at least 2. 797 * Donnot use more than our maximum. 798 */ 799 reqtags = sym_driver_setup.max_tag; 800 if (reqtags > tp->usrtags) 801 reqtags = tp->usrtags; 802 if (!sdev->tagged_supported) 803 reqtags = 0; 804 if (reqtags > SYM_CONF_MAX_TAG) 805 reqtags = SYM_CONF_MAX_TAG; 806 depth_to_use = reqtags ? reqtags : 2; 807 scsi_adjust_queue_depth(sdev, 808 sdev->tagged_supported ? MSG_SIMPLE_TAG : 0, 809 depth_to_use); 810 lp->s.scdev_depth = depth_to_use; 811 sym_tune_dev_queuing(tp, sdev->lun, reqtags); 812 813 if (!spi_initial_dv(sdev->sdev_target)) 814 spi_dv_device(sdev); 815 816 return 0; 817 } 818 819 static void sym53c8xx_slave_destroy(struct scsi_device *sdev) 820 { 821 struct sym_hcb *np = sym_get_hcb(sdev->host); 822 struct sym_lcb *lp = sym_lp(&np->target[sdev->id], sdev->lun); 823 824 if (lp->itlq_tbl) 825 sym_mfree_dma(lp->itlq_tbl, SYM_CONF_MAX_TASK * 4, "ITLQ_TBL"); 826 kfree(lp->cb_tags); 827 sym_mfree_dma(lp, sizeof(*lp), "LCB"); 828 } 829 830 /* 831 * Linux entry point for info() function 832 */ 833 static const char *sym53c8xx_info (struct Scsi_Host *host) 834 { 835 return SYM_DRIVER_NAME; 836 } 837 838 839 #ifdef SYM_LINUX_PROC_INFO_SUPPORT 840 /* 841 * Proc file system stuff 842 * 843 * A read operation returns adapter information. 844 * A write operation is a control command. 845 * The string is parsed in the driver code and the command is passed 846 * to the sym_usercmd() function. 847 */ 848 849 #ifdef SYM_LINUX_USER_COMMAND_SUPPORT 850 851 struct sym_usrcmd { 852 u_long target; 853 u_long lun; 854 u_long data; 855 u_long cmd; 856 }; 857 858 #define UC_SETSYNC 10 859 #define UC_SETTAGS 11 860 #define UC_SETDEBUG 12 861 #define UC_SETWIDE 14 862 #define UC_SETFLAG 15 863 #define UC_SETVERBOSE 17 864 #define UC_RESETDEV 18 865 #define UC_CLEARDEV 19 866 867 static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc) 868 { 869 struct sym_tcb *tp; 870 int t, l; 871 872 switch (uc->cmd) { 873 case 0: return; 874 875 #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT 876 case UC_SETDEBUG: 877 sym_debug_flags = uc->data; 878 break; 879 #endif 880 case UC_SETVERBOSE: 881 np->verbose = uc->data; 882 break; 883 default: 884 /* 885 * We assume that other commands apply to targets. 886 * This should always be the case and avoid the below 887 * 4 lines to be repeated 6 times. 888 */ 889 for (t = 0; t < SYM_CONF_MAX_TARGET; t++) { 890 if (!((uc->target >> t) & 1)) 891 continue; 892 tp = &np->target[t]; 893 894 switch (uc->cmd) { 895 896 case UC_SETSYNC: 897 if (!uc->data || uc->data >= 255) { 898 tp->tgoal.iu = tp->tgoal.dt = 899 tp->tgoal.qas = 0; 900 tp->tgoal.offset = 0; 901 } else if (uc->data <= 9 && np->minsync_dt) { 902 if (uc->data < np->minsync_dt) 903 uc->data = np->minsync_dt; 904 tp->tgoal.iu = tp->tgoal.dt = 905 tp->tgoal.qas = 1; 906 tp->tgoal.width = 1; 907 tp->tgoal.period = uc->data; 908 tp->tgoal.offset = np->maxoffs_dt; 909 } else { 910 if (uc->data < np->minsync) 911 uc->data = np->minsync; 912 tp->tgoal.iu = tp->tgoal.dt = 913 tp->tgoal.qas = 0; 914 tp->tgoal.period = uc->data; 915 tp->tgoal.offset = np->maxoffs; 916 } 917 tp->tgoal.check_nego = 1; 918 break; 919 case UC_SETWIDE: 920 tp->tgoal.width = uc->data ? 1 : 0; 921 tp->tgoal.check_nego = 1; 922 break; 923 case UC_SETTAGS: 924 for (l = 0; l < SYM_CONF_MAX_LUN; l++) 925 sym_tune_dev_queuing(tp, l, uc->data); 926 break; 927 case UC_RESETDEV: 928 tp->to_reset = 1; 929 np->istat_sem = SEM; 930 OUTB(np, nc_istat, SIGP|SEM); 931 break; 932 case UC_CLEARDEV: 933 for (l = 0; l < SYM_CONF_MAX_LUN; l++) { 934 struct sym_lcb *lp = sym_lp(tp, l); 935 if (lp) lp->to_clear = 1; 936 } 937 np->istat_sem = SEM; 938 OUTB(np, nc_istat, SIGP|SEM); 939 break; 940 case UC_SETFLAG: 941 tp->usrflags = uc->data; 942 break; 943 } 944 } 945 break; 946 } 947 } 948 949 static int skip_spaces(char *ptr, int len) 950 { 951 int cnt, c; 952 953 for (cnt = len; cnt > 0 && (c = *ptr++) && isspace(c); cnt--); 954 955 return (len - cnt); 956 } 957 958 static int get_int_arg(char *ptr, int len, u_long *pv) 959 { 960 char *end; 961 962 *pv = simple_strtoul(ptr, &end, 10); 963 return (end - ptr); 964 } 965 966 static int is_keyword(char *ptr, int len, char *verb) 967 { 968 int verb_len = strlen(verb); 969 970 if (len >= verb_len && !memcmp(verb, ptr, verb_len)) 971 return verb_len; 972 else 973 return 0; 974 } 975 976 #define SKIP_SPACES(ptr, len) \ 977 if ((arg_len = skip_spaces(ptr, len)) < 1) \ 978 return -EINVAL; \ 979 ptr += arg_len; len -= arg_len; 980 981 #define GET_INT_ARG(ptr, len, v) \ 982 if (!(arg_len = get_int_arg(ptr, len, &(v)))) \ 983 return -EINVAL; \ 984 ptr += arg_len; len -= arg_len; 985 986 987 /* 988 * Parse a control command 989 */ 990 991 static int sym_user_command(struct Scsi_Host *shost, char *buffer, int length) 992 { 993 struct sym_hcb *np = sym_get_hcb(shost); 994 char *ptr = buffer; 995 int len = length; 996 struct sym_usrcmd cmd, *uc = &cmd; 997 int arg_len; 998 u_long target; 999 1000 memset(uc, 0, sizeof(*uc)); 1001 1002 if (len > 0 && ptr[len-1] == '\n') 1003 --len; 1004 1005 if ((arg_len = is_keyword(ptr, len, "setsync")) != 0) 1006 uc->cmd = UC_SETSYNC; 1007 else if ((arg_len = is_keyword(ptr, len, "settags")) != 0) 1008 uc->cmd = UC_SETTAGS; 1009 else if ((arg_len = is_keyword(ptr, len, "setverbose")) != 0) 1010 uc->cmd = UC_SETVERBOSE; 1011 else if ((arg_len = is_keyword(ptr, len, "setwide")) != 0) 1012 uc->cmd = UC_SETWIDE; 1013 #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT 1014 else if ((arg_len = is_keyword(ptr, len, "setdebug")) != 0) 1015 uc->cmd = UC_SETDEBUG; 1016 #endif 1017 else if ((arg_len = is_keyword(ptr, len, "setflag")) != 0) 1018 uc->cmd = UC_SETFLAG; 1019 else if ((arg_len = is_keyword(ptr, len, "resetdev")) != 0) 1020 uc->cmd = UC_RESETDEV; 1021 else if ((arg_len = is_keyword(ptr, len, "cleardev")) != 0) 1022 uc->cmd = UC_CLEARDEV; 1023 else 1024 arg_len = 0; 1025 1026 #ifdef DEBUG_PROC_INFO 1027 printk("sym_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd); 1028 #endif 1029 1030 if (!arg_len) 1031 return -EINVAL; 1032 ptr += arg_len; len -= arg_len; 1033 1034 switch(uc->cmd) { 1035 case UC_SETSYNC: 1036 case UC_SETTAGS: 1037 case UC_SETWIDE: 1038 case UC_SETFLAG: 1039 case UC_RESETDEV: 1040 case UC_CLEARDEV: 1041 SKIP_SPACES(ptr, len); 1042 if ((arg_len = is_keyword(ptr, len, "all")) != 0) { 1043 ptr += arg_len; len -= arg_len; 1044 uc->target = ~0; 1045 } else { 1046 GET_INT_ARG(ptr, len, target); 1047 uc->target = (1<<target); 1048 #ifdef DEBUG_PROC_INFO 1049 printk("sym_user_command: target=%ld\n", target); 1050 #endif 1051 } 1052 break; 1053 } 1054 1055 switch(uc->cmd) { 1056 case UC_SETVERBOSE: 1057 case UC_SETSYNC: 1058 case UC_SETTAGS: 1059 case UC_SETWIDE: 1060 SKIP_SPACES(ptr, len); 1061 GET_INT_ARG(ptr, len, uc->data); 1062 #ifdef DEBUG_PROC_INFO 1063 printk("sym_user_command: data=%ld\n", uc->data); 1064 #endif 1065 break; 1066 #ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT 1067 case UC_SETDEBUG: 1068 while (len > 0) { 1069 SKIP_SPACES(ptr, len); 1070 if ((arg_len = is_keyword(ptr, len, "alloc"))) 1071 uc->data |= DEBUG_ALLOC; 1072 else if ((arg_len = is_keyword(ptr, len, "phase"))) 1073 uc->data |= DEBUG_PHASE; 1074 else if ((arg_len = is_keyword(ptr, len, "queue"))) 1075 uc->data |= DEBUG_QUEUE; 1076 else if ((arg_len = is_keyword(ptr, len, "result"))) 1077 uc->data |= DEBUG_RESULT; 1078 else if ((arg_len = is_keyword(ptr, len, "scatter"))) 1079 uc->data |= DEBUG_SCATTER; 1080 else if ((arg_len = is_keyword(ptr, len, "script"))) 1081 uc->data |= DEBUG_SCRIPT; 1082 else if ((arg_len = is_keyword(ptr, len, "tiny"))) 1083 uc->data |= DEBUG_TINY; 1084 else if ((arg_len = is_keyword(ptr, len, "timing"))) 1085 uc->data |= DEBUG_TIMING; 1086 else if ((arg_len = is_keyword(ptr, len, "nego"))) 1087 uc->data |= DEBUG_NEGO; 1088 else if ((arg_len = is_keyword(ptr, len, "tags"))) 1089 uc->data |= DEBUG_TAGS; 1090 else if ((arg_len = is_keyword(ptr, len, "pointer"))) 1091 uc->data |= DEBUG_POINTER; 1092 else 1093 return -EINVAL; 1094 ptr += arg_len; len -= arg_len; 1095 } 1096 #ifdef DEBUG_PROC_INFO 1097 printk("sym_user_command: data=%ld\n", uc->data); 1098 #endif 1099 break; 1100 #endif /* SYM_LINUX_DEBUG_CONTROL_SUPPORT */ 1101 case UC_SETFLAG: 1102 while (len > 0) { 1103 SKIP_SPACES(ptr, len); 1104 if ((arg_len = is_keyword(ptr, len, "no_disc"))) 1105 uc->data &= ~SYM_DISC_ENABLED; 1106 else 1107 return -EINVAL; 1108 ptr += arg_len; len -= arg_len; 1109 } 1110 break; 1111 default: 1112 break; 1113 } 1114 1115 if (len) 1116 return -EINVAL; 1117 else { 1118 unsigned long flags; 1119 1120 spin_lock_irqsave(shost->host_lock, flags); 1121 sym_exec_user_command(np, uc); 1122 spin_unlock_irqrestore(shost->host_lock, flags); 1123 } 1124 return length; 1125 } 1126 1127 #endif /* SYM_LINUX_USER_COMMAND_SUPPORT */ 1128 1129 1130 #ifdef SYM_LINUX_USER_INFO_SUPPORT 1131 /* 1132 * Informations through the proc file system. 1133 */ 1134 struct info_str { 1135 char *buffer; 1136 int length; 1137 int offset; 1138 int pos; 1139 }; 1140 1141 static void copy_mem_info(struct info_str *info, char *data, int len) 1142 { 1143 if (info->pos + len > info->length) 1144 len = info->length - info->pos; 1145 1146 if (info->pos + len < info->offset) { 1147 info->pos += len; 1148 return; 1149 } 1150 if (info->pos < info->offset) { 1151 data += (info->offset - info->pos); 1152 len -= (info->offset - info->pos); 1153 } 1154 1155 if (len > 0) { 1156 memcpy(info->buffer + info->pos, data, len); 1157 info->pos += len; 1158 } 1159 } 1160 1161 static int copy_info(struct info_str *info, char *fmt, ...) 1162 { 1163 va_list args; 1164 char buf[81]; 1165 int len; 1166 1167 va_start(args, fmt); 1168 len = vsprintf(buf, fmt, args); 1169 va_end(args); 1170 1171 copy_mem_info(info, buf, len); 1172 return len; 1173 } 1174 1175 /* 1176 * Copy formatted information into the input buffer. 1177 */ 1178 static int sym_host_info(struct Scsi_Host *shost, char *ptr, off_t offset, int len) 1179 { 1180 struct sym_data *sym_data = shost_priv(shost); 1181 struct pci_dev *pdev = sym_data->pdev; 1182 struct sym_hcb *np = sym_data->ncb; 1183 struct info_str info; 1184 1185 info.buffer = ptr; 1186 info.length = len; 1187 info.offset = offset; 1188 info.pos = 0; 1189 1190 copy_info(&info, "Chip " NAME53C "%s, device id 0x%x, " 1191 "revision id 0x%x\n", np->s.chip_name, 1192 pdev->device, pdev->revision); 1193 copy_info(&info, "At PCI address %s, IRQ %u\n", 1194 pci_name(pdev), pdev->irq); 1195 copy_info(&info, "Min. period factor %d, %s SCSI BUS%s\n", 1196 (int) (np->minsync_dt ? np->minsync_dt : np->minsync), 1197 np->maxwide ? "Wide" : "Narrow", 1198 np->minsync_dt ? ", DT capable" : ""); 1199 1200 copy_info(&info, "Max. started commands %d, " 1201 "max. commands per LUN %d\n", 1202 SYM_CONF_MAX_START, SYM_CONF_MAX_TAG); 1203 1204 return info.pos > info.offset? info.pos - info.offset : 0; 1205 } 1206 #endif /* SYM_LINUX_USER_INFO_SUPPORT */ 1207 1208 /* 1209 * Entry point of the scsi proc fs of the driver. 1210 * - func = 0 means read (returns adapter infos) 1211 * - func = 1 means write (not yet merget from sym53c8xx) 1212 */ 1213 static int sym53c8xx_proc_info(struct Scsi_Host *shost, char *buffer, 1214 char **start, off_t offset, int length, int func) 1215 { 1216 int retv; 1217 1218 if (func) { 1219 #ifdef SYM_LINUX_USER_COMMAND_SUPPORT 1220 retv = sym_user_command(shost, buffer, length); 1221 #else 1222 retv = -EINVAL; 1223 #endif 1224 } else { 1225 if (start) 1226 *start = buffer; 1227 #ifdef SYM_LINUX_USER_INFO_SUPPORT 1228 retv = sym_host_info(shost, buffer, offset, length); 1229 #else 1230 retv = -EINVAL; 1231 #endif 1232 } 1233 1234 return retv; 1235 } 1236 #endif /* SYM_LINUX_PROC_INFO_SUPPORT */ 1237 1238 /* 1239 * Free controller resources. 1240 */ 1241 static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev) 1242 { 1243 /* 1244 * Free O/S specific resources. 1245 */ 1246 if (pdev->irq) 1247 free_irq(pdev->irq, np->s.host); 1248 if (np->s.ioaddr) 1249 pci_iounmap(pdev, np->s.ioaddr); 1250 if (np->s.ramaddr) 1251 pci_iounmap(pdev, np->s.ramaddr); 1252 /* 1253 * Free O/S independent resources. 1254 */ 1255 sym_hcb_free(np); 1256 1257 sym_mfree_dma(np, sizeof(*np), "HCB"); 1258 } 1259 1260 /* 1261 * Host attach and initialisations. 1262 * 1263 * Allocate host data and ncb structure. 1264 * Remap MMIO region. 1265 * Do chip initialization. 1266 * If all is OK, install interrupt handling and 1267 * start the timer daemon. 1268 */ 1269 static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt, 1270 int unit, struct sym_device *dev) 1271 { 1272 struct sym_data *sym_data; 1273 struct sym_hcb *np = NULL; 1274 struct Scsi_Host *shost; 1275 struct pci_dev *pdev = dev->pdev; 1276 unsigned long flags; 1277 struct sym_fw *fw; 1278 1279 printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n", 1280 unit, dev->chip.name, pdev->revision, pci_name(pdev), 1281 pdev->irq); 1282 1283 /* 1284 * Get the firmware for this chip. 1285 */ 1286 fw = sym_find_firmware(&dev->chip); 1287 if (!fw) 1288 return NULL; 1289 1290 shost = scsi_host_alloc(tpnt, sizeof(*sym_data)); 1291 if (!shost) 1292 return NULL; 1293 sym_data = shost_priv(shost); 1294 1295 /* 1296 * Allocate immediately the host control block, 1297 * since we are only expecting to succeed. :) 1298 * We keep track in the HCB of all the resources that 1299 * are to be released on error. 1300 */ 1301 np = __sym_calloc_dma(&pdev->dev, sizeof(*np), "HCB"); 1302 if (!np) 1303 goto attach_failed; 1304 np->bus_dmat = &pdev->dev; /* Result in 1 DMA pool per HBA */ 1305 sym_data->ncb = np; 1306 sym_data->pdev = pdev; 1307 np->s.host = shost; 1308 1309 pci_set_drvdata(pdev, shost); 1310 1311 /* 1312 * Copy some useful infos to the HCB. 1313 */ 1314 np->hcb_ba = vtobus(np); 1315 np->verbose = sym_driver_setup.verbose; 1316 np->s.unit = unit; 1317 np->features = dev->chip.features; 1318 np->clock_divn = dev->chip.nr_divisor; 1319 np->maxoffs = dev->chip.offset_max; 1320 np->maxburst = dev->chip.burst_max; 1321 np->myaddr = dev->host_id; 1322 1323 /* 1324 * Edit its name. 1325 */ 1326 strlcpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name)); 1327 sprintf(np->s.inst_name, "sym%d", np->s.unit); 1328 1329 if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) && 1330 !pci_set_dma_mask(pdev, DMA_DAC_MASK)) { 1331 set_dac(np); 1332 } else if (pci_set_dma_mask(pdev, DMA_32BIT_MASK)) { 1333 printf_warning("%s: No suitable DMA available\n", sym_name(np)); 1334 goto attach_failed; 1335 } 1336 1337 /* 1338 * Try to map the controller chip to 1339 * virtual and physical memory. 1340 */ 1341 np->mmio_ba = (u32)dev->mmio_base; 1342 np->s.ioaddr = dev->s.ioaddr; 1343 np->s.ramaddr = dev->s.ramaddr; 1344 1345 /* 1346 * Map on-chip RAM if present and supported. 1347 */ 1348 if (!(np->features & FE_RAM)) 1349 dev->ram_base = 0; 1350 if (dev->ram_base) 1351 np->ram_ba = (u32)dev->ram_base; 1352 1353 if (sym_hcb_attach(shost, fw, dev->nvram)) 1354 goto attach_failed; 1355 1356 /* 1357 * Install the interrupt handler. 1358 * If we synchonize the C code with SCRIPTS on interrupt, 1359 * we do not want to share the INTR line at all. 1360 */ 1361 if (request_irq(pdev->irq, sym53c8xx_intr, IRQF_SHARED, NAME53C8XX, 1362 shost)) { 1363 printf_err("%s: request irq %u failure\n", 1364 sym_name(np), pdev->irq); 1365 goto attach_failed; 1366 } 1367 1368 /* 1369 * After SCSI devices have been opened, we cannot 1370 * reset the bus safely, so we do it here. 1371 */ 1372 spin_lock_irqsave(shost->host_lock, flags); 1373 if (sym_reset_scsi_bus(np, 0)) 1374 goto reset_failed; 1375 1376 /* 1377 * Start the SCRIPTS. 1378 */ 1379 sym_start_up(shost, 1); 1380 1381 /* 1382 * Start the timer daemon 1383 */ 1384 init_timer(&np->s.timer); 1385 np->s.timer.data = (unsigned long) np; 1386 np->s.timer.function = sym53c8xx_timer; 1387 np->s.lasttime=0; 1388 sym_timer (np); 1389 1390 /* 1391 * Fill Linux host instance structure 1392 * and return success. 1393 */ 1394 shost->max_channel = 0; 1395 shost->this_id = np->myaddr; 1396 shost->max_id = np->maxwide ? 16 : 8; 1397 shost->max_lun = SYM_CONF_MAX_LUN; 1398 shost->unique_id = pci_resource_start(pdev, 0); 1399 shost->cmd_per_lun = SYM_CONF_MAX_TAG; 1400 shost->can_queue = (SYM_CONF_MAX_START-2); 1401 shost->sg_tablesize = SYM_CONF_MAX_SG; 1402 shost->max_cmd_len = 16; 1403 BUG_ON(sym2_transport_template == NULL); 1404 shost->transportt = sym2_transport_template; 1405 1406 /* 53c896 rev 1 errata: DMA may not cross 16MB boundary */ 1407 if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 2) 1408 shost->dma_boundary = 0xFFFFFF; 1409 1410 spin_unlock_irqrestore(shost->host_lock, flags); 1411 1412 return shost; 1413 1414 reset_failed: 1415 printf_err("%s: FATAL ERROR: CHECK SCSI BUS - CABLES, " 1416 "TERMINATION, DEVICE POWER etc.!\n", sym_name(np)); 1417 spin_unlock_irqrestore(shost->host_lock, flags); 1418 attach_failed: 1419 if (!shost) 1420 return NULL; 1421 printf_info("%s: giving up ...\n", sym_name(np)); 1422 if (np) 1423 sym_free_resources(np, pdev); 1424 scsi_host_put(shost); 1425 1426 return NULL; 1427 } 1428 1429 1430 /* 1431 * Detect and try to read SYMBIOS and TEKRAM NVRAM. 1432 */ 1433 #if SYM_CONF_NVRAM_SUPPORT 1434 static void __devinit sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) 1435 { 1436 devp->nvram = nvp; 1437 nvp->type = 0; 1438 1439 sym_read_nvram(devp, nvp); 1440 } 1441 #else 1442 static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp) 1443 { 1444 } 1445 #endif /* SYM_CONF_NVRAM_SUPPORT */ 1446 1447 static int __devinit sym_check_supported(struct sym_device *device) 1448 { 1449 struct sym_chip *chip; 1450 struct pci_dev *pdev = device->pdev; 1451 unsigned long io_port = pci_resource_start(pdev, 0); 1452 int i; 1453 1454 /* 1455 * If user excluded this chip, do not initialize it. 1456 * I hate this code so much. Must kill it. 1457 */ 1458 if (io_port) { 1459 for (i = 0 ; i < 8 ; i++) { 1460 if (sym_driver_setup.excludes[i] == io_port) 1461 return -ENODEV; 1462 } 1463 } 1464 1465 /* 1466 * Check if the chip is supported. Then copy the chip description 1467 * to our device structure so we can make it match the actual device 1468 * and options. 1469 */ 1470 chip = sym_lookup_chip_table(pdev->device, pdev->revision); 1471 if (!chip) { 1472 dev_info(&pdev->dev, "device not supported\n"); 1473 return -ENODEV; 1474 } 1475 memcpy(&device->chip, chip, sizeof(device->chip)); 1476 1477 return 0; 1478 } 1479 1480 /* 1481 * Ignore Symbios chips controlled by various RAID controllers. 1482 * These controllers set value 0x52414944 at RAM end - 16. 1483 */ 1484 static int __devinit sym_check_raid(struct sym_device *device) 1485 { 1486 unsigned int ram_size, ram_val; 1487 1488 if (!device->s.ramaddr) 1489 return 0; 1490 1491 if (device->chip.features & FE_RAM8K) 1492 ram_size = 8192; 1493 else 1494 ram_size = 4096; 1495 1496 ram_val = readl(device->s.ramaddr + ram_size - 16); 1497 if (ram_val != 0x52414944) 1498 return 0; 1499 1500 dev_info(&device->pdev->dev, 1501 "not initializing, driven by RAID controller.\n"); 1502 return -ENODEV; 1503 } 1504 1505 static int __devinit sym_set_workarounds(struct sym_device *device) 1506 { 1507 struct sym_chip *chip = &device->chip; 1508 struct pci_dev *pdev = device->pdev; 1509 u_short status_reg; 1510 1511 /* 1512 * (ITEM 12 of a DEL about the 896 I haven't yet). 1513 * We must ensure the chip will use WRITE AND INVALIDATE. 1514 * The revision number limit is for now arbitrary. 1515 */ 1516 if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 0x4) { 1517 chip->features |= (FE_WRIE | FE_CLSE); 1518 } 1519 1520 /* If the chip can do Memory Write Invalidate, enable it */ 1521 if (chip->features & FE_WRIE) { 1522 if (pci_set_mwi(pdev)) 1523 return -ENODEV; 1524 } 1525 1526 /* 1527 * Work around for errant bit in 895A. The 66Mhz 1528 * capable bit is set erroneously. Clear this bit. 1529 * (Item 1 DEL 533) 1530 * 1531 * Make sure Config space and Features agree. 1532 * 1533 * Recall: writes are not normal to status register - 1534 * write a 1 to clear and a 0 to leave unchanged. 1535 * Can only reset bits. 1536 */ 1537 pci_read_config_word(pdev, PCI_STATUS, &status_reg); 1538 if (chip->features & FE_66MHZ) { 1539 if (!(status_reg & PCI_STATUS_66MHZ)) 1540 chip->features &= ~FE_66MHZ; 1541 } else { 1542 if (status_reg & PCI_STATUS_66MHZ) { 1543 status_reg = PCI_STATUS_66MHZ; 1544 pci_write_config_word(pdev, PCI_STATUS, status_reg); 1545 pci_read_config_word(pdev, PCI_STATUS, &status_reg); 1546 } 1547 } 1548 1549 return 0; 1550 } 1551 1552 /* 1553 * Read and check the PCI configuration for any detected NCR 1554 * boards and save data for attaching after all boards have 1555 * been detected. 1556 */ 1557 static void __devinit 1558 sym_init_device(struct pci_dev *pdev, struct sym_device *device) 1559 { 1560 int i = 2; 1561 struct pci_bus_region bus_addr; 1562 1563 device->host_id = SYM_SETUP_HOST_ID; 1564 device->pdev = pdev; 1565 1566 pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]); 1567 device->mmio_base = bus_addr.start; 1568 1569 /* 1570 * If the BAR is 64-bit, resource 2 will be occupied by the 1571 * upper 32 bits 1572 */ 1573 if (!pdev->resource[i].flags) 1574 i++; 1575 pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]); 1576 device->ram_base = bus_addr.start; 1577 1578 #ifdef CONFIG_SCSI_SYM53C8XX_MMIO 1579 if (device->mmio_base) 1580 device->s.ioaddr = pci_iomap(pdev, 1, 1581 pci_resource_len(pdev, 1)); 1582 #endif 1583 if (!device->s.ioaddr) 1584 device->s.ioaddr = pci_iomap(pdev, 0, 1585 pci_resource_len(pdev, 0)); 1586 if (device->ram_base) 1587 device->s.ramaddr = pci_iomap(pdev, i, 1588 pci_resource_len(pdev, i)); 1589 } 1590 1591 /* 1592 * The NCR PQS and PDS cards are constructed as a DEC bridge 1593 * behind which sits a proprietary NCR memory controller and 1594 * either four or two 53c875s as separate devices. We can tell 1595 * if an 875 is part of a PQS/PDS or not since if it is, it will 1596 * be on the same bus as the memory controller. In its usual 1597 * mode of operation, the 875s are slaved to the memory 1598 * controller for all transfers. To operate with the Linux 1599 * driver, the memory controller is disabled and the 875s 1600 * freed to function independently. The only wrinkle is that 1601 * the preset SCSI ID (which may be zero) must be read in from 1602 * a special configuration space register of the 875. 1603 */ 1604 static void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev) 1605 { 1606 int slot; 1607 u8 tmp; 1608 1609 for (slot = 0; slot < 256; slot++) { 1610 struct pci_dev *memc = pci_get_slot(pdev->bus, slot); 1611 1612 if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) { 1613 pci_dev_put(memc); 1614 continue; 1615 } 1616 1617 /* bit 1: allow individual 875 configuration */ 1618 pci_read_config_byte(memc, 0x44, &tmp); 1619 if ((tmp & 0x2) == 0) { 1620 tmp |= 0x2; 1621 pci_write_config_byte(memc, 0x44, tmp); 1622 } 1623 1624 /* bit 2: drive individual 875 interrupts to the bus */ 1625 pci_read_config_byte(memc, 0x45, &tmp); 1626 if ((tmp & 0x4) == 0) { 1627 tmp |= 0x4; 1628 pci_write_config_byte(memc, 0x45, tmp); 1629 } 1630 1631 pci_dev_put(memc); 1632 break; 1633 } 1634 1635 pci_read_config_byte(pdev, 0x84, &tmp); 1636 sym_dev->host_id = tmp; 1637 } 1638 1639 /* 1640 * Called before unloading the module. 1641 * Detach the host. 1642 * We have to free resources and halt the NCR chip. 1643 */ 1644 static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev) 1645 { 1646 struct sym_hcb *np = sym_get_hcb(shost); 1647 printk("%s: detaching ...\n", sym_name(np)); 1648 1649 del_timer_sync(&np->s.timer); 1650 1651 /* 1652 * Reset NCR chip. 1653 * We should use sym_soft_reset(), but we don't want to do 1654 * so, since we may not be safe if interrupts occur. 1655 */ 1656 printk("%s: resetting chip\n", sym_name(np)); 1657 OUTB(np, nc_istat, SRST); 1658 INB(np, nc_mbox1); 1659 udelay(10); 1660 OUTB(np, nc_istat, 0); 1661 1662 sym_free_resources(np, pdev); 1663 1664 return 1; 1665 } 1666 1667 /* 1668 * Driver host template. 1669 */ 1670 static struct scsi_host_template sym2_template = { 1671 .module = THIS_MODULE, 1672 .name = "sym53c8xx", 1673 .info = sym53c8xx_info, 1674 .queuecommand = sym53c8xx_queue_command, 1675 .slave_alloc = sym53c8xx_slave_alloc, 1676 .slave_configure = sym53c8xx_slave_configure, 1677 .slave_destroy = sym53c8xx_slave_destroy, 1678 .eh_abort_handler = sym53c8xx_eh_abort_handler, 1679 .eh_device_reset_handler = sym53c8xx_eh_device_reset_handler, 1680 .eh_bus_reset_handler = sym53c8xx_eh_bus_reset_handler, 1681 .eh_host_reset_handler = sym53c8xx_eh_host_reset_handler, 1682 .this_id = 7, 1683 .use_clustering = ENABLE_CLUSTERING, 1684 .max_sectors = 0xFFFF, 1685 #ifdef SYM_LINUX_PROC_INFO_SUPPORT 1686 .proc_info = sym53c8xx_proc_info, 1687 .proc_name = NAME53C8XX, 1688 #endif 1689 }; 1690 1691 static int attach_count; 1692 1693 static int __devinit sym2_probe(struct pci_dev *pdev, 1694 const struct pci_device_id *ent) 1695 { 1696 struct sym_device sym_dev; 1697 struct sym_nvram nvram; 1698 struct Scsi_Host *shost; 1699 1700 memset(&sym_dev, 0, sizeof(sym_dev)); 1701 memset(&nvram, 0, sizeof(nvram)); 1702 1703 if (pci_enable_device(pdev)) 1704 goto leave; 1705 1706 pci_set_master(pdev); 1707 1708 if (pci_request_regions(pdev, NAME53C8XX)) 1709 goto disable; 1710 1711 sym_init_device(pdev, &sym_dev); 1712 if (sym_check_supported(&sym_dev)) 1713 goto free; 1714 1715 if (sym_check_raid(&sym_dev)) 1716 goto leave; /* Don't disable the device */ 1717 1718 if (sym_set_workarounds(&sym_dev)) 1719 goto free; 1720 1721 sym_config_pqs(pdev, &sym_dev); 1722 1723 sym_get_nvram(&sym_dev, &nvram); 1724 1725 shost = sym_attach(&sym2_template, attach_count, &sym_dev); 1726 if (!shost) 1727 goto free; 1728 1729 if (scsi_add_host(shost, &pdev->dev)) 1730 goto detach; 1731 scsi_scan_host(shost); 1732 1733 attach_count++; 1734 1735 return 0; 1736 1737 detach: 1738 sym_detach(pci_get_drvdata(pdev), pdev); 1739 free: 1740 pci_release_regions(pdev); 1741 disable: 1742 pci_disable_device(pdev); 1743 leave: 1744 return -ENODEV; 1745 } 1746 1747 static void sym2_remove(struct pci_dev *pdev) 1748 { 1749 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1750 1751 scsi_remove_host(shost); 1752 scsi_host_put(shost); 1753 sym_detach(shost, pdev); 1754 pci_release_regions(pdev); 1755 pci_disable_device(pdev); 1756 1757 attach_count--; 1758 } 1759 1760 /** 1761 * sym2_io_error_detected() - called when PCI error is detected 1762 * @pdev: pointer to PCI device 1763 * @state: current state of the PCI slot 1764 */ 1765 static pci_ers_result_t sym2_io_error_detected(struct pci_dev *pdev, 1766 enum pci_channel_state state) 1767 { 1768 /* If slot is permanently frozen, turn everything off */ 1769 if (state == pci_channel_io_perm_failure) { 1770 sym2_remove(pdev); 1771 return PCI_ERS_RESULT_DISCONNECT; 1772 } 1773 1774 disable_irq(pdev->irq); 1775 pci_disable_device(pdev); 1776 1777 /* Request that MMIO be enabled, so register dump can be taken. */ 1778 return PCI_ERS_RESULT_CAN_RECOVER; 1779 } 1780 1781 /** 1782 * sym2_io_slot_dump - Enable MMIO and dump debug registers 1783 * @pdev: pointer to PCI device 1784 */ 1785 static pci_ers_result_t sym2_io_slot_dump(struct pci_dev *pdev) 1786 { 1787 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1788 1789 sym_dump_registers(shost); 1790 1791 /* Request a slot reset. */ 1792 return PCI_ERS_RESULT_NEED_RESET; 1793 } 1794 1795 /** 1796 * sym2_reset_workarounds - hardware-specific work-arounds 1797 * 1798 * This routine is similar to sym_set_workarounds(), except 1799 * that, at this point, we already know that the device was 1800 * succesfully intialized at least once before, and so most 1801 * of the steps taken there are un-needed here. 1802 */ 1803 static void sym2_reset_workarounds(struct pci_dev *pdev) 1804 { 1805 u_short status_reg; 1806 struct sym_chip *chip; 1807 1808 chip = sym_lookup_chip_table(pdev->device, pdev->revision); 1809 1810 /* Work around for errant bit in 895A, in a fashion 1811 * similar to what is done in sym_set_workarounds(). 1812 */ 1813 pci_read_config_word(pdev, PCI_STATUS, &status_reg); 1814 if (!(chip->features & FE_66MHZ) && (status_reg & PCI_STATUS_66MHZ)) { 1815 status_reg = PCI_STATUS_66MHZ; 1816 pci_write_config_word(pdev, PCI_STATUS, status_reg); 1817 pci_read_config_word(pdev, PCI_STATUS, &status_reg); 1818 } 1819 } 1820 1821 /** 1822 * sym2_io_slot_reset() - called when the pci bus has been reset. 1823 * @pdev: pointer to PCI device 1824 * 1825 * Restart the card from scratch. 1826 */ 1827 static pci_ers_result_t sym2_io_slot_reset(struct pci_dev *pdev) 1828 { 1829 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1830 struct sym_hcb *np = sym_get_hcb(shost); 1831 1832 printk(KERN_INFO "%s: recovering from a PCI slot reset\n", 1833 sym_name(np)); 1834 1835 if (pci_enable_device(pdev)) { 1836 printk(KERN_ERR "%s: Unable to enable after PCI reset\n", 1837 sym_name(np)); 1838 return PCI_ERS_RESULT_DISCONNECT; 1839 } 1840 1841 pci_set_master(pdev); 1842 enable_irq(pdev->irq); 1843 1844 /* If the chip can do Memory Write Invalidate, enable it */ 1845 if (np->features & FE_WRIE) { 1846 if (pci_set_mwi(pdev)) 1847 return PCI_ERS_RESULT_DISCONNECT; 1848 } 1849 1850 /* Perform work-arounds, analogous to sym_set_workarounds() */ 1851 sym2_reset_workarounds(pdev); 1852 1853 /* Perform host reset only on one instance of the card */ 1854 if (PCI_FUNC(pdev->devfn) == 0) { 1855 if (sym_reset_scsi_bus(np, 0)) { 1856 printk(KERN_ERR "%s: Unable to reset scsi host\n", 1857 sym_name(np)); 1858 return PCI_ERS_RESULT_DISCONNECT; 1859 } 1860 sym_start_up(shost, 1); 1861 } 1862 1863 return PCI_ERS_RESULT_RECOVERED; 1864 } 1865 1866 /** 1867 * sym2_io_resume() - resume normal ops after PCI reset 1868 * @pdev: pointer to PCI device 1869 * 1870 * Called when the error recovery driver tells us that its 1871 * OK to resume normal operation. Use completion to allow 1872 * halted scsi ops to resume. 1873 */ 1874 static void sym2_io_resume(struct pci_dev *pdev) 1875 { 1876 struct Scsi_Host *shost = pci_get_drvdata(pdev); 1877 struct sym_data *sym_data = shost_priv(shost); 1878 1879 spin_lock_irq(shost->host_lock); 1880 if (sym_data->io_reset) 1881 complete_all(sym_data->io_reset); 1882 spin_unlock_irq(shost->host_lock); 1883 } 1884 1885 static void sym2_get_signalling(struct Scsi_Host *shost) 1886 { 1887 struct sym_hcb *np = sym_get_hcb(shost); 1888 enum spi_signal_type type; 1889 1890 switch (np->scsi_mode) { 1891 case SMODE_SE: 1892 type = SPI_SIGNAL_SE; 1893 break; 1894 case SMODE_LVD: 1895 type = SPI_SIGNAL_LVD; 1896 break; 1897 case SMODE_HVD: 1898 type = SPI_SIGNAL_HVD; 1899 break; 1900 default: 1901 type = SPI_SIGNAL_UNKNOWN; 1902 break; 1903 } 1904 spi_signalling(shost) = type; 1905 } 1906 1907 static void sym2_set_offset(struct scsi_target *starget, int offset) 1908 { 1909 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1910 struct sym_hcb *np = sym_get_hcb(shost); 1911 struct sym_tcb *tp = &np->target[starget->id]; 1912 1913 tp->tgoal.offset = offset; 1914 tp->tgoal.check_nego = 1; 1915 } 1916 1917 static void sym2_set_period(struct scsi_target *starget, int period) 1918 { 1919 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1920 struct sym_hcb *np = sym_get_hcb(shost); 1921 struct sym_tcb *tp = &np->target[starget->id]; 1922 1923 /* have to have DT for these transfers, but DT will also 1924 * set width, so check that this is allowed */ 1925 if (period <= np->minsync && spi_width(starget)) 1926 tp->tgoal.dt = 1; 1927 1928 tp->tgoal.period = period; 1929 tp->tgoal.check_nego = 1; 1930 } 1931 1932 static void sym2_set_width(struct scsi_target *starget, int width) 1933 { 1934 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1935 struct sym_hcb *np = sym_get_hcb(shost); 1936 struct sym_tcb *tp = &np->target[starget->id]; 1937 1938 /* It is illegal to have DT set on narrow transfers. If DT is 1939 * clear, we must also clear IU and QAS. */ 1940 if (width == 0) 1941 tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; 1942 1943 tp->tgoal.width = width; 1944 tp->tgoal.check_nego = 1; 1945 } 1946 1947 static void sym2_set_dt(struct scsi_target *starget, int dt) 1948 { 1949 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1950 struct sym_hcb *np = sym_get_hcb(shost); 1951 struct sym_tcb *tp = &np->target[starget->id]; 1952 1953 /* We must clear QAS and IU if DT is clear */ 1954 if (dt) 1955 tp->tgoal.dt = 1; 1956 else 1957 tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0; 1958 tp->tgoal.check_nego = 1; 1959 } 1960 1961 #if 0 1962 static void sym2_set_iu(struct scsi_target *starget, int iu) 1963 { 1964 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1965 struct sym_hcb *np = sym_get_hcb(shost); 1966 struct sym_tcb *tp = &np->target[starget->id]; 1967 1968 if (iu) 1969 tp->tgoal.iu = tp->tgoal.dt = 1; 1970 else 1971 tp->tgoal.iu = 0; 1972 tp->tgoal.check_nego = 1; 1973 } 1974 1975 static void sym2_set_qas(struct scsi_target *starget, int qas) 1976 { 1977 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent); 1978 struct sym_hcb *np = sym_get_hcb(shost); 1979 struct sym_tcb *tp = &np->target[starget->id]; 1980 1981 if (qas) 1982 tp->tgoal.dt = tp->tgoal.qas = 1; 1983 else 1984 tp->tgoal.qas = 0; 1985 tp->tgoal.check_nego = 1; 1986 } 1987 #endif 1988 1989 static struct spi_function_template sym2_transport_functions = { 1990 .set_offset = sym2_set_offset, 1991 .show_offset = 1, 1992 .set_period = sym2_set_period, 1993 .show_period = 1, 1994 .set_width = sym2_set_width, 1995 .show_width = 1, 1996 .set_dt = sym2_set_dt, 1997 .show_dt = 1, 1998 #if 0 1999 .set_iu = sym2_set_iu, 2000 .show_iu = 1, 2001 .set_qas = sym2_set_qas, 2002 .show_qas = 1, 2003 #endif 2004 .get_signalling = sym2_get_signalling, 2005 }; 2006 2007 static struct pci_device_id sym2_id_table[] __devinitdata = { 2008 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810, 2009 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2010 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820, 2011 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ 2012 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C825, 2013 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2014 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C815, 2015 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2016 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C810AP, 2017 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, /* new */ 2018 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860, 2019 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2020 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510, 2021 PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, 2022 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896, 2023 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2024 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895, 2025 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2026 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C885, 2027 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2028 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875, 2029 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2030 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C1510, 2031 PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL }, /* new */ 2032 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C895A, 2033 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2034 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C875A, 2035 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2036 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_33, 2037 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2038 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_66, 2039 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2040 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875J, 2041 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL }, 2042 { 0, } 2043 }; 2044 2045 MODULE_DEVICE_TABLE(pci, sym2_id_table); 2046 2047 static struct pci_error_handlers sym2_err_handler = { 2048 .error_detected = sym2_io_error_detected, 2049 .mmio_enabled = sym2_io_slot_dump, 2050 .slot_reset = sym2_io_slot_reset, 2051 .resume = sym2_io_resume, 2052 }; 2053 2054 static struct pci_driver sym2_driver = { 2055 .name = NAME53C8XX, 2056 .id_table = sym2_id_table, 2057 .probe = sym2_probe, 2058 .remove = sym2_remove, 2059 .err_handler = &sym2_err_handler, 2060 }; 2061 2062 static int __init sym2_init(void) 2063 { 2064 int error; 2065 2066 sym2_setup_params(); 2067 sym2_transport_template = spi_attach_transport(&sym2_transport_functions); 2068 if (!sym2_transport_template) 2069 return -ENODEV; 2070 2071 error = pci_register_driver(&sym2_driver); 2072 if (error) 2073 spi_release_transport(sym2_transport_template); 2074 return error; 2075 } 2076 2077 static void __exit sym2_exit(void) 2078 { 2079 pci_unregister_driver(&sym2_driver); 2080 spi_release_transport(sym2_transport_template); 2081 } 2082 2083 module_init(sym2_init); 2084 module_exit(sym2_exit); 2085