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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
56struct sym_driver_setup sym_driver_setup = SYM_LINUX_DRIVER_SETUP;
57unsigned int sym_debug_flags = 0;
58
59static char *excl_string;
60static char *safe_string;
61module_param_named(cmd_per_lun, sym_driver_setup.max_tag, ushort, 0);
62module_param_named(burst, sym_driver_setup.burst_order, byte, 0);
63module_param_named(led, sym_driver_setup.scsi_led, byte, 0);
64module_param_named(diff, sym_driver_setup.scsi_diff, byte, 0);
65module_param_named(irqm, sym_driver_setup.irq_mode, byte, 0);
66module_param_named(buschk, sym_driver_setup.scsi_bus_check, byte, 0);
67module_param_named(hostid, sym_driver_setup.host_id, byte, 0);
68module_param_named(verb, sym_driver_setup.verbose, byte, 0);
69module_param_named(debug, sym_debug_flags, uint, 0);
70module_param_named(settle, sym_driver_setup.settle_delay, byte, 0);
71module_param_named(nvram, sym_driver_setup.use_nvram, byte, 0);
72module_param_named(excl, excl_string, charp, 0);
73module_param_named(safe, safe_string, charp, 0);
74
75MODULE_PARM_DESC(cmd_per_lun, "The maximum number of tags to use by default");
76MODULE_PARM_DESC(burst, "Maximum burst. 0 to disable, 255 to read from registers");
77MODULE_PARM_DESC(led, "Set to 1 to enable LED support");
78MODULE_PARM_DESC(diff, "0 for no differential mode, 1 for BIOS, 2 for always, 3 for not GPIO3");
79MODULE_PARM_DESC(irqm, "0 for open drain, 1 to leave alone, 2 for totem pole");
80MODULE_PARM_DESC(buschk, "0 to not check, 1 for detach on error, 2 for warn on error");
81MODULE_PARM_DESC(hostid, "The SCSI ID to use for the host adapters");
82MODULE_PARM_DESC(verb, "0 for minimal verbosity, 1 for normal, 2 for excessive");
83MODULE_PARM_DESC(debug, "Set bits to enable debugging");
84MODULE_PARM_DESC(settle, "Settle delay in seconds. Default 3");
85MODULE_PARM_DESC(nvram, "Option currently not used");
86MODULE_PARM_DESC(excl, "List ioport addresses here to prevent controllers from being attached");
87MODULE_PARM_DESC(safe, "Set other settings to a \"safe mode\"");
88
89MODULE_LICENSE("GPL");
90MODULE_VERSION(SYM_VERSION);
91MODULE_AUTHOR("Matthew Wilcox <matthew@wil.cx>");
92MODULE_DESCRIPTION("NCR, Symbios and LSI 8xx and 1010 PCI SCSI adapters");
93
94static 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
125static struct scsi_transport_template *sym2_transport_template = NULL;
126
127
128
129
130struct sym_ucmd {
131 struct completion *eh_done;
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
139
140void 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
154
155void 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
167
168
169static 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
186
187void 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
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
216
217
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
230
231
232
233
234 sym_reset_scsi_target(np, cmd->device->id);
235 cam_status = DID_ERROR;
236 }
237 } else if (cp->host_status == HS_COMPLETE)
238 cam_status = DID_OK;
239 else if (cp->host_status == HS_SEL_TIMEOUT)
240 cam_status = DID_NO_CONNECT;
241 else if (cp->host_status == HS_UNEXPECTED)
242 cam_status = DID_ERROR;
243 else {
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
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
258static 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
299
300static 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
310
311 tp = &np->target[sdev->id];
312
313
314
315
316 lp = sym_lp(tp, sdev->lun);
317 order = (lp && lp->s.reqtags) ? M_SIMPLE_TAG : 0;
318
319
320
321
322 cp = sym_get_ccb(np, cmd, order);
323 if (!cp)
324 return 1;
325 sym_queue_scsiio(np, cmd, cp);
326 return 0;
327}
328
329
330
331
332static 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
344
345int 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
352
353 if (sym_setup_cdb(np, cmd, cp))
354 goto out_abort;
355
356
357
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
369
370 if (!cp->segments)
371 dir = DMA_NONE;
372 } else {
373 cp->data_len = 0;
374 cp->segments = 0;
375 }
376
377
378
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
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
410
411
412
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
426
427 sym_put_start_queue(np, cp);
428 return 0;
429
430out_abort:
431 sym_free_ccb(np, cp);
432 sym_xpt_done(np, cmd);
433 return 0;
434}
435
436
437
438
439
440
441
442
443static void sym_timer(struct sym_hcb *np)
444{
445 unsigned long thistime = jiffies;
446
447
448
449
450 np->s.timer.expires = thistime + SYM_CONF_TIMER_INTERVAL;
451 add_timer(&np->s.timer);
452
453
454
455
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
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
477
478
479
480
481
482
483 sym_wakeup_done(np);
484#endif
485}
486
487
488
489
490
491void 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
506
507
508static 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
520
521
522 if (np->s.settle_time_valid && cmd->request->timeout) {
523 unsigned long tlimit = jiffies + cmd->request->timeout;
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
541
542static 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
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
565
566static 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
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
587
588
589static 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
604
605
606
607
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
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
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
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
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
689
690static int sym53c8xx_eh_abort_handler(struct scsi_cmnd *cmd)
691{
692 return sym_eh_handler(SYM_EH_ABORT, "ABORT", cmd);
693}
694
695static 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
700static 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
705static 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
712
713static 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
735static 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 unsigned long flags;
741 int error;
742
743 if (sdev->id >= SYM_CONF_MAX_TARGET || sdev->lun >= SYM_CONF_MAX_LUN)
744 return -ENXIO;
745
746 spin_lock_irqsave(np->s.host->host_lock, flags);
747
748
749
750
751
752
753
754
755
756
757 if (tp->usrflags & SYM_SCAN_BOOT_DISABLED) {
758 tp->usrflags &= ~SYM_SCAN_BOOT_DISABLED;
759 starget_printk(KERN_INFO, sdev->sdev_target,
760 "Scan at boot disabled in NVRAM\n");
761 error = -ENXIO;
762 goto out;
763 }
764
765 if (tp->usrflags & SYM_SCAN_LUNS_DISABLED) {
766 if (sdev->lun != 0) {
767 error = -ENXIO;
768 goto out;
769 }
770 starget_printk(KERN_INFO, sdev->sdev_target,
771 "Multiple LUNs disabled in NVRAM\n");
772 }
773
774 lp = sym_alloc_lcb(np, sdev->id, sdev->lun);
775 if (!lp) {
776 error = -ENOMEM;
777 goto out;
778 }
779 if (tp->nlcb == 1)
780 tp->starget = sdev->sdev_target;
781
782 spi_min_period(tp->starget) = tp->usr_period;
783 spi_max_width(tp->starget) = tp->usr_width;
784
785 error = 0;
786out:
787 spin_unlock_irqrestore(np->s.host->host_lock, flags);
788
789 return error;
790}
791
792
793
794
795static int sym53c8xx_slave_configure(struct scsi_device *sdev)
796{
797 struct sym_hcb *np = sym_get_hcb(sdev->host);
798 struct sym_tcb *tp = &np->target[sdev->id];
799 struct sym_lcb *lp = sym_lp(tp, sdev->lun);
800 int reqtags, depth_to_use;
801
802
803
804
805 lp->curr_flags = lp->user_flags;
806
807
808
809
810
811
812
813 reqtags = sym_driver_setup.max_tag;
814 if (reqtags > tp->usrtags)
815 reqtags = tp->usrtags;
816 if (!sdev->tagged_supported)
817 reqtags = 0;
818 if (reqtags > SYM_CONF_MAX_TAG)
819 reqtags = SYM_CONF_MAX_TAG;
820 depth_to_use = reqtags ? reqtags : 1;
821 scsi_adjust_queue_depth(sdev,
822 sdev->tagged_supported ? MSG_SIMPLE_TAG : 0,
823 depth_to_use);
824 lp->s.scdev_depth = depth_to_use;
825 sym_tune_dev_queuing(tp, sdev->lun, reqtags);
826
827 if (!spi_initial_dv(sdev->sdev_target))
828 spi_dv_device(sdev);
829
830 return 0;
831}
832
833static void sym53c8xx_slave_destroy(struct scsi_device *sdev)
834{
835 struct sym_hcb *np = sym_get_hcb(sdev->host);
836 struct sym_tcb *tp = &np->target[sdev->id];
837 struct sym_lcb *lp = sym_lp(tp, sdev->lun);
838 unsigned long flags;
839
840 spin_lock_irqsave(np->s.host->host_lock, flags);
841
842 if (lp->busy_itlq || lp->busy_itl) {
843
844
845
846
847 starget_printk(KERN_WARNING, tp->starget,
848 "Removing busy LCB (%d)\n", sdev->lun);
849 sym_reset_scsi_bus(np, 1);
850 }
851
852 if (sym_free_lcb(np, sdev->id, sdev->lun) == 0) {
853
854
855
856 tp->head.sval = 0;
857 tp->head.wval = np->rv_scntl3;
858 tp->head.uval = 0;
859 tp->tgoal.check_nego = 1;
860 tp->starget = NULL;
861 }
862
863 spin_unlock_irqrestore(np->s.host->host_lock, flags);
864}
865
866
867
868
869static const char *sym53c8xx_info (struct Scsi_Host *host)
870{
871 return SYM_DRIVER_NAME;
872}
873
874
875#ifdef SYM_LINUX_PROC_INFO_SUPPORT
876
877
878
879
880
881
882
883
884
885#ifdef SYM_LINUX_USER_COMMAND_SUPPORT
886
887struct sym_usrcmd {
888 u_long target;
889 u_long lun;
890 u_long data;
891 u_long cmd;
892};
893
894#define UC_SETSYNC 10
895#define UC_SETTAGS 11
896#define UC_SETDEBUG 12
897#define UC_SETWIDE 14
898#define UC_SETFLAG 15
899#define UC_SETVERBOSE 17
900#define UC_RESETDEV 18
901#define UC_CLEARDEV 19
902
903static void sym_exec_user_command (struct sym_hcb *np, struct sym_usrcmd *uc)
904{
905 struct sym_tcb *tp;
906 int t, l;
907
908 switch (uc->cmd) {
909 case 0: return;
910
911#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
912 case UC_SETDEBUG:
913 sym_debug_flags = uc->data;
914 break;
915#endif
916 case UC_SETVERBOSE:
917 np->verbose = uc->data;
918 break;
919 default:
920
921
922
923
924
925 for (t = 0; t < SYM_CONF_MAX_TARGET; t++) {
926 if (!((uc->target >> t) & 1))
927 continue;
928 tp = &np->target[t];
929 if (!tp->nlcb)
930 continue;
931
932 switch (uc->cmd) {
933
934 case UC_SETSYNC:
935 if (!uc->data || uc->data >= 255) {
936 tp->tgoal.iu = tp->tgoal.dt =
937 tp->tgoal.qas = 0;
938 tp->tgoal.offset = 0;
939 } else if (uc->data <= 9 && np->minsync_dt) {
940 if (uc->data < np->minsync_dt)
941 uc->data = np->minsync_dt;
942 tp->tgoal.iu = tp->tgoal.dt =
943 tp->tgoal.qas = 1;
944 tp->tgoal.width = 1;
945 tp->tgoal.period = uc->data;
946 tp->tgoal.offset = np->maxoffs_dt;
947 } else {
948 if (uc->data < np->minsync)
949 uc->data = np->minsync;
950 tp->tgoal.iu = tp->tgoal.dt =
951 tp->tgoal.qas = 0;
952 tp->tgoal.period = uc->data;
953 tp->tgoal.offset = np->maxoffs;
954 }
955 tp->tgoal.check_nego = 1;
956 break;
957 case UC_SETWIDE:
958 tp->tgoal.width = uc->data ? 1 : 0;
959 tp->tgoal.check_nego = 1;
960 break;
961 case UC_SETTAGS:
962 for (l = 0; l < SYM_CONF_MAX_LUN; l++)
963 sym_tune_dev_queuing(tp, l, uc->data);
964 break;
965 case UC_RESETDEV:
966 tp->to_reset = 1;
967 np->istat_sem = SEM;
968 OUTB(np, nc_istat, SIGP|SEM);
969 break;
970 case UC_CLEARDEV:
971 for (l = 0; l < SYM_CONF_MAX_LUN; l++) {
972 struct sym_lcb *lp = sym_lp(tp, l);
973 if (lp) lp->to_clear = 1;
974 }
975 np->istat_sem = SEM;
976 OUTB(np, nc_istat, SIGP|SEM);
977 break;
978 case UC_SETFLAG:
979 tp->usrflags = uc->data;
980 break;
981 }
982 }
983 break;
984 }
985}
986
987static int skip_spaces(char *ptr, int len)
988{
989 int cnt, c;
990
991 for (cnt = len; cnt > 0 && (c = *ptr++) && isspace(c); cnt--);
992
993 return (len - cnt);
994}
995
996static int get_int_arg(char *ptr, int len, u_long *pv)
997{
998 char *end;
999
1000 *pv = simple_strtoul(ptr, &end, 10);
1001 return (end - ptr);
1002}
1003
1004static int is_keyword(char *ptr, int len, char *verb)
1005{
1006 int verb_len = strlen(verb);
1007
1008 if (len >= verb_len && !memcmp(verb, ptr, verb_len))
1009 return verb_len;
1010 else
1011 return 0;
1012}
1013
1014#define SKIP_SPACES(ptr, len) \
1015 if ((arg_len = skip_spaces(ptr, len)) < 1) \
1016 return -EINVAL; \
1017 ptr += arg_len; len -= arg_len;
1018
1019#define GET_INT_ARG(ptr, len, v) \
1020 if (!(arg_len = get_int_arg(ptr, len, &(v)))) \
1021 return -EINVAL; \
1022 ptr += arg_len; len -= arg_len;
1023
1024
1025
1026
1027
1028
1029static int sym_user_command(struct Scsi_Host *shost, char *buffer, int length)
1030{
1031 struct sym_hcb *np = sym_get_hcb(shost);
1032 char *ptr = buffer;
1033 int len = length;
1034 struct sym_usrcmd cmd, *uc = &cmd;
1035 int arg_len;
1036 u_long target;
1037
1038 memset(uc, 0, sizeof(*uc));
1039
1040 if (len > 0 && ptr[len-1] == '\n')
1041 --len;
1042
1043 if ((arg_len = is_keyword(ptr, len, "setsync")) != 0)
1044 uc->cmd = UC_SETSYNC;
1045 else if ((arg_len = is_keyword(ptr, len, "settags")) != 0)
1046 uc->cmd = UC_SETTAGS;
1047 else if ((arg_len = is_keyword(ptr, len, "setverbose")) != 0)
1048 uc->cmd = UC_SETVERBOSE;
1049 else if ((arg_len = is_keyword(ptr, len, "setwide")) != 0)
1050 uc->cmd = UC_SETWIDE;
1051#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
1052 else if ((arg_len = is_keyword(ptr, len, "setdebug")) != 0)
1053 uc->cmd = UC_SETDEBUG;
1054#endif
1055 else if ((arg_len = is_keyword(ptr, len, "setflag")) != 0)
1056 uc->cmd = UC_SETFLAG;
1057 else if ((arg_len = is_keyword(ptr, len, "resetdev")) != 0)
1058 uc->cmd = UC_RESETDEV;
1059 else if ((arg_len = is_keyword(ptr, len, "cleardev")) != 0)
1060 uc->cmd = UC_CLEARDEV;
1061 else
1062 arg_len = 0;
1063
1064#ifdef DEBUG_PROC_INFO
1065printk("sym_user_command: arg_len=%d, cmd=%ld\n", arg_len, uc->cmd);
1066#endif
1067
1068 if (!arg_len)
1069 return -EINVAL;
1070 ptr += arg_len; len -= arg_len;
1071
1072 switch(uc->cmd) {
1073 case UC_SETSYNC:
1074 case UC_SETTAGS:
1075 case UC_SETWIDE:
1076 case UC_SETFLAG:
1077 case UC_RESETDEV:
1078 case UC_CLEARDEV:
1079 SKIP_SPACES(ptr, len);
1080 if ((arg_len = is_keyword(ptr, len, "all")) != 0) {
1081 ptr += arg_len; len -= arg_len;
1082 uc->target = ~0;
1083 } else {
1084 GET_INT_ARG(ptr, len, target);
1085 uc->target = (1<<target);
1086#ifdef DEBUG_PROC_INFO
1087printk("sym_user_command: target=%ld\n", target);
1088#endif
1089 }
1090 break;
1091 }
1092
1093 switch(uc->cmd) {
1094 case UC_SETVERBOSE:
1095 case UC_SETSYNC:
1096 case UC_SETTAGS:
1097 case UC_SETWIDE:
1098 SKIP_SPACES(ptr, len);
1099 GET_INT_ARG(ptr, len, uc->data);
1100#ifdef DEBUG_PROC_INFO
1101printk("sym_user_command: data=%ld\n", uc->data);
1102#endif
1103 break;
1104#ifdef SYM_LINUX_DEBUG_CONTROL_SUPPORT
1105 case UC_SETDEBUG:
1106 while (len > 0) {
1107 SKIP_SPACES(ptr, len);
1108 if ((arg_len = is_keyword(ptr, len, "alloc")))
1109 uc->data |= DEBUG_ALLOC;
1110 else if ((arg_len = is_keyword(ptr, len, "phase")))
1111 uc->data |= DEBUG_PHASE;
1112 else if ((arg_len = is_keyword(ptr, len, "queue")))
1113 uc->data |= DEBUG_QUEUE;
1114 else if ((arg_len = is_keyword(ptr, len, "result")))
1115 uc->data |= DEBUG_RESULT;
1116 else if ((arg_len = is_keyword(ptr, len, "scatter")))
1117 uc->data |= DEBUG_SCATTER;
1118 else if ((arg_len = is_keyword(ptr, len, "script")))
1119 uc->data |= DEBUG_SCRIPT;
1120 else if ((arg_len = is_keyword(ptr, len, "tiny")))
1121 uc->data |= DEBUG_TINY;
1122 else if ((arg_len = is_keyword(ptr, len, "timing")))
1123 uc->data |= DEBUG_TIMING;
1124 else if ((arg_len = is_keyword(ptr, len, "nego")))
1125 uc->data |= DEBUG_NEGO;
1126 else if ((arg_len = is_keyword(ptr, len, "tags")))
1127 uc->data |= DEBUG_TAGS;
1128 else if ((arg_len = is_keyword(ptr, len, "pointer")))
1129 uc->data |= DEBUG_POINTER;
1130 else
1131 return -EINVAL;
1132 ptr += arg_len; len -= arg_len;
1133 }
1134#ifdef DEBUG_PROC_INFO
1135printk("sym_user_command: data=%ld\n", uc->data);
1136#endif
1137 break;
1138#endif
1139 case UC_SETFLAG:
1140 while (len > 0) {
1141 SKIP_SPACES(ptr, len);
1142 if ((arg_len = is_keyword(ptr, len, "no_disc")))
1143 uc->data &= ~SYM_DISC_ENABLED;
1144 else
1145 return -EINVAL;
1146 ptr += arg_len; len -= arg_len;
1147 }
1148 break;
1149 default:
1150 break;
1151 }
1152
1153 if (len)
1154 return -EINVAL;
1155 else {
1156 unsigned long flags;
1157
1158 spin_lock_irqsave(shost->host_lock, flags);
1159 sym_exec_user_command(np, uc);
1160 spin_unlock_irqrestore(shost->host_lock, flags);
1161 }
1162 return length;
1163}
1164
1165#endif
1166
1167
1168#ifdef SYM_LINUX_USER_INFO_SUPPORT
1169
1170
1171
1172struct info_str {
1173 char *buffer;
1174 int length;
1175 int offset;
1176 int pos;
1177};
1178
1179static void copy_mem_info(struct info_str *info, char *data, int len)
1180{
1181 if (info->pos + len > info->length)
1182 len = info->length - info->pos;
1183
1184 if (info->pos + len < info->offset) {
1185 info->pos += len;
1186 return;
1187 }
1188 if (info->pos < info->offset) {
1189 data += (info->offset - info->pos);
1190 len -= (info->offset - info->pos);
1191 }
1192
1193 if (len > 0) {
1194 memcpy(info->buffer + info->pos, data, len);
1195 info->pos += len;
1196 }
1197}
1198
1199static int copy_info(struct info_str *info, char *fmt, ...)
1200{
1201 va_list args;
1202 char buf[81];
1203 int len;
1204
1205 va_start(args, fmt);
1206 len = vsprintf(buf, fmt, args);
1207 va_end(args);
1208
1209 copy_mem_info(info, buf, len);
1210 return len;
1211}
1212
1213
1214
1215
1216static int sym_host_info(struct Scsi_Host *shost, char *ptr, off_t offset, int len)
1217{
1218 struct sym_data *sym_data = shost_priv(shost);
1219 struct pci_dev *pdev = sym_data->pdev;
1220 struct sym_hcb *np = sym_data->ncb;
1221 struct info_str info;
1222
1223 info.buffer = ptr;
1224 info.length = len;
1225 info.offset = offset;
1226 info.pos = 0;
1227
1228 copy_info(&info, "Chip " NAME53C "%s, device id 0x%x, "
1229 "revision id 0x%x\n", np->s.chip_name,
1230 pdev->device, pdev->revision);
1231 copy_info(&info, "At PCI address %s, IRQ %u\n",
1232 pci_name(pdev), pdev->irq);
1233 copy_info(&info, "Min. period factor %d, %s SCSI BUS%s\n",
1234 (int) (np->minsync_dt ? np->minsync_dt : np->minsync),
1235 np->maxwide ? "Wide" : "Narrow",
1236 np->minsync_dt ? ", DT capable" : "");
1237
1238 copy_info(&info, "Max. started commands %d, "
1239 "max. commands per LUN %d\n",
1240 SYM_CONF_MAX_START, SYM_CONF_MAX_TAG);
1241
1242 return info.pos > info.offset? info.pos - info.offset : 0;
1243}
1244#endif
1245
1246
1247
1248
1249
1250
1251static int sym53c8xx_proc_info(struct Scsi_Host *shost, char *buffer,
1252 char **start, off_t offset, int length, int func)
1253{
1254 int retv;
1255
1256 if (func) {
1257#ifdef SYM_LINUX_USER_COMMAND_SUPPORT
1258 retv = sym_user_command(shost, buffer, length);
1259#else
1260 retv = -EINVAL;
1261#endif
1262 } else {
1263 if (start)
1264 *start = buffer;
1265#ifdef SYM_LINUX_USER_INFO_SUPPORT
1266 retv = sym_host_info(shost, buffer, offset, length);
1267#else
1268 retv = -EINVAL;
1269#endif
1270 }
1271
1272 return retv;
1273}
1274#endif
1275
1276
1277
1278
1279
1280
1281static void __devinit
1282sym_iounmap_device(struct sym_device *device)
1283{
1284 if (device->s.ioaddr)
1285 pci_iounmap(device->pdev, device->s.ioaddr);
1286 if (device->s.ramaddr)
1287 pci_iounmap(device->pdev, device->s.ramaddr);
1288}
1289
1290
1291
1292
1293static void sym_free_resources(struct sym_hcb *np, struct pci_dev *pdev,
1294 int do_free_irq)
1295{
1296
1297
1298
1299 if (do_free_irq)
1300 free_irq(pdev->irq, np->s.host);
1301 if (np->s.ioaddr)
1302 pci_iounmap(pdev, np->s.ioaddr);
1303 if (np->s.ramaddr)
1304 pci_iounmap(pdev, np->s.ramaddr);
1305
1306
1307
1308 sym_hcb_free(np);
1309
1310 sym_mfree_dma(np, sizeof(*np), "HCB");
1311}
1312
1313
1314
1315
1316
1317
1318
1319
1320
1321
1322static struct Scsi_Host * __devinit sym_attach(struct scsi_host_template *tpnt,
1323 int unit, struct sym_device *dev)
1324{
1325 struct sym_data *sym_data;
1326 struct sym_hcb *np = NULL;
1327 struct Scsi_Host *shost = NULL;
1328 struct pci_dev *pdev = dev->pdev;
1329 unsigned long flags;
1330 struct sym_fw *fw;
1331 int do_free_irq = 0;
1332
1333 printk(KERN_INFO "sym%d: <%s> rev 0x%x at pci %s irq %u\n",
1334 unit, dev->chip.name, pdev->revision, pci_name(pdev),
1335 pdev->irq);
1336
1337
1338
1339
1340 fw = sym_find_firmware(&dev->chip);
1341 if (!fw)
1342 goto attach_failed;
1343
1344 shost = scsi_host_alloc(tpnt, sizeof(*sym_data));
1345 if (!shost)
1346 goto attach_failed;
1347 sym_data = shost_priv(shost);
1348
1349
1350
1351
1352
1353
1354
1355 np = __sym_calloc_dma(&pdev->dev, sizeof(*np), "HCB");
1356 if (!np)
1357 goto attach_failed;
1358 np->bus_dmat = &pdev->dev;
1359 sym_data->ncb = np;
1360 sym_data->pdev = pdev;
1361 np->s.host = shost;
1362
1363 pci_set_drvdata(pdev, shost);
1364
1365
1366
1367
1368 np->hcb_ba = vtobus(np);
1369 np->verbose = sym_driver_setup.verbose;
1370 np->s.unit = unit;
1371 np->features = dev->chip.features;
1372 np->clock_divn = dev->chip.nr_divisor;
1373 np->maxoffs = dev->chip.offset_max;
1374 np->maxburst = dev->chip.burst_max;
1375 np->myaddr = dev->host_id;
1376 np->mmio_ba = (u32)dev->mmio_base;
1377 np->ram_ba = (u32)dev->ram_base;
1378 np->s.ioaddr = dev->s.ioaddr;
1379 np->s.ramaddr = dev->s.ramaddr;
1380
1381
1382
1383
1384 strlcpy(np->s.chip_name, dev->chip.name, sizeof(np->s.chip_name));
1385 sprintf(np->s.inst_name, "sym%d", np->s.unit);
1386
1387 if ((SYM_CONF_DMA_ADDRESSING_MODE > 0) && (np->features & FE_DAC) &&
1388 !pci_set_dma_mask(pdev, DMA_DAC_MASK)) {
1389 set_dac(np);
1390 } else if (pci_set_dma_mask(pdev, DMA_BIT_MASK(32))) {
1391 printf_warning("%s: No suitable DMA available\n", sym_name(np));
1392 goto attach_failed;
1393 }
1394
1395 if (sym_hcb_attach(shost, fw, dev->nvram))
1396 goto attach_failed;
1397
1398
1399
1400
1401
1402
1403 if (request_irq(pdev->irq, sym53c8xx_intr, IRQF_SHARED, NAME53C8XX,
1404 shost)) {
1405 printf_err("%s: request irq %u failure\n",
1406 sym_name(np), pdev->irq);
1407 goto attach_failed;
1408 }
1409 do_free_irq = 1;
1410
1411
1412
1413
1414
1415 spin_lock_irqsave(shost->host_lock, flags);
1416 if (sym_reset_scsi_bus(np, 0))
1417 goto reset_failed;
1418
1419
1420
1421
1422 sym_start_up(shost, 1);
1423
1424
1425
1426
1427 init_timer(&np->s.timer);
1428 np->s.timer.data = (unsigned long) np;
1429 np->s.timer.function = sym53c8xx_timer;
1430 np->s.lasttime=0;
1431 sym_timer (np);
1432
1433
1434
1435
1436
1437 shost->max_channel = 0;
1438 shost->this_id = np->myaddr;
1439 shost->max_id = np->maxwide ? 16 : 8;
1440 shost->max_lun = SYM_CONF_MAX_LUN;
1441 shost->unique_id = pci_resource_start(pdev, 0);
1442 shost->cmd_per_lun = SYM_CONF_MAX_TAG;
1443 shost->can_queue = (SYM_CONF_MAX_START-2);
1444 shost->sg_tablesize = SYM_CONF_MAX_SG;
1445 shost->max_cmd_len = 16;
1446 BUG_ON(sym2_transport_template == NULL);
1447 shost->transportt = sym2_transport_template;
1448
1449
1450 if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 2)
1451 shost->dma_boundary = 0xFFFFFF;
1452
1453 spin_unlock_irqrestore(shost->host_lock, flags);
1454
1455 return shost;
1456
1457 reset_failed:
1458 printf_err("%s: FATAL ERROR: CHECK SCSI BUS - CABLES, "
1459 "TERMINATION, DEVICE POWER etc.!\n", sym_name(np));
1460 spin_unlock_irqrestore(shost->host_lock, flags);
1461 attach_failed:
1462 printf_info("sym%d: giving up ...\n", unit);
1463 if (np)
1464 sym_free_resources(np, pdev, do_free_irq);
1465 else
1466 sym_iounmap_device(dev);
1467 if (shost)
1468 scsi_host_put(shost);
1469
1470 return NULL;
1471 }
1472
1473
1474
1475
1476
1477#if SYM_CONF_NVRAM_SUPPORT
1478static void __devinit sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp)
1479{
1480 devp->nvram = nvp;
1481 nvp->type = 0;
1482
1483 sym_read_nvram(devp, nvp);
1484}
1485#else
1486static inline void sym_get_nvram(struct sym_device *devp, struct sym_nvram *nvp)
1487{
1488}
1489#endif
1490
1491static int __devinit sym_check_supported(struct sym_device *device)
1492{
1493 struct sym_chip *chip;
1494 struct pci_dev *pdev = device->pdev;
1495 unsigned long io_port = pci_resource_start(pdev, 0);
1496 int i;
1497
1498
1499
1500
1501
1502 if (io_port) {
1503 for (i = 0 ; i < 8 ; i++) {
1504 if (sym_driver_setup.excludes[i] == io_port)
1505 return -ENODEV;
1506 }
1507 }
1508
1509
1510
1511
1512
1513
1514 chip = sym_lookup_chip_table(pdev->device, pdev->revision);
1515 if (!chip) {
1516 dev_info(&pdev->dev, "device not supported\n");
1517 return -ENODEV;
1518 }
1519 memcpy(&device->chip, chip, sizeof(device->chip));
1520
1521 return 0;
1522}
1523
1524
1525
1526
1527
1528static int __devinit sym_check_raid(struct sym_device *device)
1529{
1530 unsigned int ram_size, ram_val;
1531
1532 if (!device->s.ramaddr)
1533 return 0;
1534
1535 if (device->chip.features & FE_RAM8K)
1536 ram_size = 8192;
1537 else
1538 ram_size = 4096;
1539
1540 ram_val = readl(device->s.ramaddr + ram_size - 16);
1541 if (ram_val != 0x52414944)
1542 return 0;
1543
1544 dev_info(&device->pdev->dev,
1545 "not initializing, driven by RAID controller.\n");
1546 return -ENODEV;
1547}
1548
1549static int __devinit sym_set_workarounds(struct sym_device *device)
1550{
1551 struct sym_chip *chip = &device->chip;
1552 struct pci_dev *pdev = device->pdev;
1553 u_short status_reg;
1554
1555
1556
1557
1558
1559
1560 if (pdev->device == PCI_DEVICE_ID_NCR_53C896 && pdev->revision < 0x4) {
1561 chip->features |= (FE_WRIE | FE_CLSE);
1562 }
1563
1564
1565 if (chip->features & FE_WRIE) {
1566 if (pci_set_mwi(pdev))
1567 return -ENODEV;
1568 }
1569
1570
1571
1572
1573
1574
1575
1576
1577
1578
1579
1580
1581 pci_read_config_word(pdev, PCI_STATUS, &status_reg);
1582 if (chip->features & FE_66MHZ) {
1583 if (!(status_reg & PCI_STATUS_66MHZ))
1584 chip->features &= ~FE_66MHZ;
1585 } else {
1586 if (status_reg & PCI_STATUS_66MHZ) {
1587 status_reg = PCI_STATUS_66MHZ;
1588 pci_write_config_word(pdev, PCI_STATUS, status_reg);
1589 pci_read_config_word(pdev, PCI_STATUS, &status_reg);
1590 }
1591 }
1592
1593 return 0;
1594}
1595
1596
1597
1598
1599static int __devinit
1600sym_iomap_device(struct sym_device *device)
1601{
1602 struct pci_dev *pdev = device->pdev;
1603 struct pci_bus_region bus_addr;
1604 int i = 2;
1605
1606 pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[1]);
1607 device->mmio_base = bus_addr.start;
1608
1609 if (device->chip.features & FE_RAM) {
1610
1611
1612
1613
1614 if (!pdev->resource[i].flags)
1615 i++;
1616 pcibios_resource_to_bus(pdev, &bus_addr, &pdev->resource[i]);
1617 device->ram_base = bus_addr.start;
1618 }
1619
1620#ifdef CONFIG_SCSI_SYM53C8XX_MMIO
1621 if (device->mmio_base)
1622 device->s.ioaddr = pci_iomap(pdev, 1,
1623 pci_resource_len(pdev, 1));
1624#endif
1625 if (!device->s.ioaddr)
1626 device->s.ioaddr = pci_iomap(pdev, 0,
1627 pci_resource_len(pdev, 0));
1628 if (!device->s.ioaddr) {
1629 dev_err(&pdev->dev, "could not map registers; giving up.\n");
1630 return -EIO;
1631 }
1632 if (device->ram_base) {
1633 device->s.ramaddr = pci_iomap(pdev, i,
1634 pci_resource_len(pdev, i));
1635 if (!device->s.ramaddr) {
1636 dev_warn(&pdev->dev,
1637 "could not map SRAM; continuing anyway.\n");
1638 device->ram_base = 0;
1639 }
1640 }
1641
1642 return 0;
1643}
1644
1645
1646
1647
1648
1649
1650
1651
1652
1653
1654
1655
1656
1657
1658static void sym_config_pqs(struct pci_dev *pdev, struct sym_device *sym_dev)
1659{
1660 int slot;
1661 u8 tmp;
1662
1663 for (slot = 0; slot < 256; slot++) {
1664 struct pci_dev *memc = pci_get_slot(pdev->bus, slot);
1665
1666 if (!memc || memc->vendor != 0x101a || memc->device == 0x0009) {
1667 pci_dev_put(memc);
1668 continue;
1669 }
1670
1671
1672 pci_read_config_byte(memc, 0x44, &tmp);
1673 if ((tmp & 0x2) == 0) {
1674 tmp |= 0x2;
1675 pci_write_config_byte(memc, 0x44, tmp);
1676 }
1677
1678
1679 pci_read_config_byte(memc, 0x45, &tmp);
1680 if ((tmp & 0x4) == 0) {
1681 tmp |= 0x4;
1682 pci_write_config_byte(memc, 0x45, tmp);
1683 }
1684
1685 pci_dev_put(memc);
1686 break;
1687 }
1688
1689 pci_read_config_byte(pdev, 0x84, &tmp);
1690 sym_dev->host_id = tmp;
1691}
1692
1693
1694
1695
1696
1697
1698static int sym_detach(struct Scsi_Host *shost, struct pci_dev *pdev)
1699{
1700 struct sym_hcb *np = sym_get_hcb(shost);
1701 printk("%s: detaching ...\n", sym_name(np));
1702
1703 del_timer_sync(&np->s.timer);
1704
1705
1706
1707
1708
1709
1710 printk("%s: resetting chip\n", sym_name(np));
1711 OUTB(np, nc_istat, SRST);
1712 INB(np, nc_mbox1);
1713 udelay(10);
1714 OUTB(np, nc_istat, 0);
1715
1716 sym_free_resources(np, pdev, 1);
1717 scsi_host_put(shost);
1718
1719 return 1;
1720}
1721
1722
1723
1724
1725static struct scsi_host_template sym2_template = {
1726 .module = THIS_MODULE,
1727 .name = "sym53c8xx",
1728 .info = sym53c8xx_info,
1729 .queuecommand = sym53c8xx_queue_command,
1730 .slave_alloc = sym53c8xx_slave_alloc,
1731 .slave_configure = sym53c8xx_slave_configure,
1732 .slave_destroy = sym53c8xx_slave_destroy,
1733 .eh_abort_handler = sym53c8xx_eh_abort_handler,
1734 .eh_device_reset_handler = sym53c8xx_eh_device_reset_handler,
1735 .eh_bus_reset_handler = sym53c8xx_eh_bus_reset_handler,
1736 .eh_host_reset_handler = sym53c8xx_eh_host_reset_handler,
1737 .this_id = 7,
1738 .use_clustering = ENABLE_CLUSTERING,
1739 .max_sectors = 0xFFFF,
1740#ifdef SYM_LINUX_PROC_INFO_SUPPORT
1741 .proc_info = sym53c8xx_proc_info,
1742 .proc_name = NAME53C8XX,
1743#endif
1744};
1745
1746static int attach_count;
1747
1748static int __devinit sym2_probe(struct pci_dev *pdev,
1749 const struct pci_device_id *ent)
1750{
1751 struct sym_device sym_dev;
1752 struct sym_nvram nvram;
1753 struct Scsi_Host *shost;
1754 int do_iounmap = 0;
1755 int do_disable_device = 1;
1756
1757 memset(&sym_dev, 0, sizeof(sym_dev));
1758 memset(&nvram, 0, sizeof(nvram));
1759 sym_dev.pdev = pdev;
1760 sym_dev.host_id = SYM_SETUP_HOST_ID;
1761
1762 if (pci_enable_device(pdev))
1763 goto leave;
1764
1765 pci_set_master(pdev);
1766
1767 if (pci_request_regions(pdev, NAME53C8XX))
1768 goto disable;
1769
1770 if (sym_check_supported(&sym_dev))
1771 goto free;
1772
1773 if (sym_iomap_device(&sym_dev))
1774 goto free;
1775 do_iounmap = 1;
1776
1777 if (sym_check_raid(&sym_dev)) {
1778 do_disable_device = 0;
1779 goto free;
1780 }
1781
1782 if (sym_set_workarounds(&sym_dev))
1783 goto free;
1784
1785 sym_config_pqs(pdev, &sym_dev);
1786
1787 sym_get_nvram(&sym_dev, &nvram);
1788
1789 do_iounmap = 0;
1790 shost = sym_attach(&sym2_template, attach_count, &sym_dev);
1791 if (!shost)
1792 goto free;
1793
1794 if (scsi_add_host(shost, &pdev->dev))
1795 goto detach;
1796 scsi_scan_host(shost);
1797
1798 attach_count++;
1799
1800 return 0;
1801
1802 detach:
1803 sym_detach(pci_get_drvdata(pdev), pdev);
1804 free:
1805 if (do_iounmap)
1806 sym_iounmap_device(&sym_dev);
1807 pci_release_regions(pdev);
1808 disable:
1809 if (do_disable_device)
1810 pci_disable_device(pdev);
1811 leave:
1812 return -ENODEV;
1813}
1814
1815static void sym2_remove(struct pci_dev *pdev)
1816{
1817 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1818
1819 scsi_remove_host(shost);
1820 sym_detach(shost, pdev);
1821 pci_release_regions(pdev);
1822 pci_disable_device(pdev);
1823
1824 attach_count--;
1825}
1826
1827
1828
1829
1830
1831
1832static pci_ers_result_t sym2_io_error_detected(struct pci_dev *pdev,
1833 enum pci_channel_state state)
1834{
1835
1836 if (state == pci_channel_io_perm_failure) {
1837 sym2_remove(pdev);
1838 return PCI_ERS_RESULT_DISCONNECT;
1839 }
1840
1841 disable_irq(pdev->irq);
1842 pci_disable_device(pdev);
1843
1844
1845 return PCI_ERS_RESULT_CAN_RECOVER;
1846}
1847
1848
1849
1850
1851
1852static pci_ers_result_t sym2_io_slot_dump(struct pci_dev *pdev)
1853{
1854 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1855
1856 sym_dump_registers(shost);
1857
1858
1859 return PCI_ERS_RESULT_NEED_RESET;
1860}
1861
1862
1863
1864
1865
1866
1867
1868
1869
1870static void sym2_reset_workarounds(struct pci_dev *pdev)
1871{
1872 u_short status_reg;
1873 struct sym_chip *chip;
1874
1875 chip = sym_lookup_chip_table(pdev->device, pdev->revision);
1876
1877
1878
1879
1880 pci_read_config_word(pdev, PCI_STATUS, &status_reg);
1881 if (!(chip->features & FE_66MHZ) && (status_reg & PCI_STATUS_66MHZ)) {
1882 status_reg = PCI_STATUS_66MHZ;
1883 pci_write_config_word(pdev, PCI_STATUS, status_reg);
1884 pci_read_config_word(pdev, PCI_STATUS, &status_reg);
1885 }
1886}
1887
1888
1889
1890
1891
1892
1893
1894static pci_ers_result_t sym2_io_slot_reset(struct pci_dev *pdev)
1895{
1896 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1897 struct sym_hcb *np = sym_get_hcb(shost);
1898
1899 printk(KERN_INFO "%s: recovering from a PCI slot reset\n",
1900 sym_name(np));
1901
1902 if (pci_enable_device(pdev)) {
1903 printk(KERN_ERR "%s: Unable to enable after PCI reset\n",
1904 sym_name(np));
1905 return PCI_ERS_RESULT_DISCONNECT;
1906 }
1907
1908 pci_set_master(pdev);
1909 enable_irq(pdev->irq);
1910
1911
1912 if (np->features & FE_WRIE) {
1913 if (pci_set_mwi(pdev))
1914 return PCI_ERS_RESULT_DISCONNECT;
1915 }
1916
1917
1918 sym2_reset_workarounds(pdev);
1919
1920
1921 if (PCI_FUNC(pdev->devfn) == 0) {
1922 if (sym_reset_scsi_bus(np, 0)) {
1923 printk(KERN_ERR "%s: Unable to reset scsi host\n",
1924 sym_name(np));
1925 return PCI_ERS_RESULT_DISCONNECT;
1926 }
1927 sym_start_up(shost, 1);
1928 }
1929
1930 return PCI_ERS_RESULT_RECOVERED;
1931}
1932
1933
1934
1935
1936
1937
1938
1939
1940
1941static void sym2_io_resume(struct pci_dev *pdev)
1942{
1943 struct Scsi_Host *shost = pci_get_drvdata(pdev);
1944 struct sym_data *sym_data = shost_priv(shost);
1945
1946 spin_lock_irq(shost->host_lock);
1947 if (sym_data->io_reset)
1948 complete_all(sym_data->io_reset);
1949 spin_unlock_irq(shost->host_lock);
1950}
1951
1952static void sym2_get_signalling(struct Scsi_Host *shost)
1953{
1954 struct sym_hcb *np = sym_get_hcb(shost);
1955 enum spi_signal_type type;
1956
1957 switch (np->scsi_mode) {
1958 case SMODE_SE:
1959 type = SPI_SIGNAL_SE;
1960 break;
1961 case SMODE_LVD:
1962 type = SPI_SIGNAL_LVD;
1963 break;
1964 case SMODE_HVD:
1965 type = SPI_SIGNAL_HVD;
1966 break;
1967 default:
1968 type = SPI_SIGNAL_UNKNOWN;
1969 break;
1970 }
1971 spi_signalling(shost) = type;
1972}
1973
1974static void sym2_set_offset(struct scsi_target *starget, int offset)
1975{
1976 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1977 struct sym_hcb *np = sym_get_hcb(shost);
1978 struct sym_tcb *tp = &np->target[starget->id];
1979
1980 tp->tgoal.offset = offset;
1981 tp->tgoal.check_nego = 1;
1982}
1983
1984static void sym2_set_period(struct scsi_target *starget, int period)
1985{
1986 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
1987 struct sym_hcb *np = sym_get_hcb(shost);
1988 struct sym_tcb *tp = &np->target[starget->id];
1989
1990
1991
1992 if (period <= np->minsync && spi_width(starget))
1993 tp->tgoal.dt = 1;
1994
1995 tp->tgoal.period = period;
1996 tp->tgoal.check_nego = 1;
1997}
1998
1999static void sym2_set_width(struct scsi_target *starget, int width)
2000{
2001 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
2002 struct sym_hcb *np = sym_get_hcb(shost);
2003 struct sym_tcb *tp = &np->target[starget->id];
2004
2005
2006
2007 if (width == 0)
2008 tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0;
2009
2010 tp->tgoal.width = width;
2011 tp->tgoal.check_nego = 1;
2012}
2013
2014static void sym2_set_dt(struct scsi_target *starget, int dt)
2015{
2016 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
2017 struct sym_hcb *np = sym_get_hcb(shost);
2018 struct sym_tcb *tp = &np->target[starget->id];
2019
2020
2021 if (dt)
2022 tp->tgoal.dt = 1;
2023 else
2024 tp->tgoal.iu = tp->tgoal.dt = tp->tgoal.qas = 0;
2025 tp->tgoal.check_nego = 1;
2026}
2027
2028#if 0
2029static void sym2_set_iu(struct scsi_target *starget, int iu)
2030{
2031 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
2032 struct sym_hcb *np = sym_get_hcb(shost);
2033 struct sym_tcb *tp = &np->target[starget->id];
2034
2035 if (iu)
2036 tp->tgoal.iu = tp->tgoal.dt = 1;
2037 else
2038 tp->tgoal.iu = 0;
2039 tp->tgoal.check_nego = 1;
2040}
2041
2042static void sym2_set_qas(struct scsi_target *starget, int qas)
2043{
2044 struct Scsi_Host *shost = dev_to_shost(starget->dev.parent);
2045 struct sym_hcb *np = sym_get_hcb(shost);
2046 struct sym_tcb *tp = &np->target[starget->id];
2047
2048 if (qas)
2049 tp->tgoal.dt = tp->tgoal.qas = 1;
2050 else
2051 tp->tgoal.qas = 0;
2052 tp->tgoal.check_nego = 1;
2053}
2054#endif
2055
2056static struct spi_function_template sym2_transport_functions = {
2057 .set_offset = sym2_set_offset,
2058 .show_offset = 1,
2059 .set_period = sym2_set_period,
2060 .show_period = 1,
2061 .set_width = sym2_set_width,
2062 .show_width = 1,
2063 .set_dt = sym2_set_dt,
2064 .show_dt = 1,
2065#if 0
2066 .set_iu = sym2_set_iu,
2067 .show_iu = 1,
2068 .set_qas = sym2_set_qas,
2069 .show_qas = 1,
2070#endif
2071 .get_signalling = sym2_get_signalling,
2072};
2073
2074static struct pci_device_id sym2_id_table[] __devinitdata = {
2075 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C810,
2076 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2077 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C820,
2078 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2079 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C825,
2080 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2081 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C815,
2082 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2083 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C810AP,
2084 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2085 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C860,
2086 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2087 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1510,
2088 PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL },
2089 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C896,
2090 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2091 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C895,
2092 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2093 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C885,
2094 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2095 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875,
2096 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2097 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C1510,
2098 PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_STORAGE_SCSI<<8, 0xffff00, 0UL },
2099 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C895A,
2100 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2101 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C875A,
2102 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2103 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_33,
2104 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2105 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_LSI_53C1010_66,
2106 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2107 { PCI_VENDOR_ID_LSI_LOGIC, PCI_DEVICE_ID_NCR_53C875J,
2108 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0UL },
2109 { 0, }
2110};
2111
2112MODULE_DEVICE_TABLE(pci, sym2_id_table);
2113
2114static struct pci_error_handlers sym2_err_handler = {
2115 .error_detected = sym2_io_error_detected,
2116 .mmio_enabled = sym2_io_slot_dump,
2117 .slot_reset = sym2_io_slot_reset,
2118 .resume = sym2_io_resume,
2119};
2120
2121static struct pci_driver sym2_driver = {
2122 .name = NAME53C8XX,
2123 .id_table = sym2_id_table,
2124 .probe = sym2_probe,
2125 .remove = sym2_remove,
2126 .err_handler = &sym2_err_handler,
2127};
2128
2129static int __init sym2_init(void)
2130{
2131 int error;
2132
2133 sym2_setup_params();
2134 sym2_transport_template = spi_attach_transport(&sym2_transport_functions);
2135 if (!sym2_transport_template)
2136 return -ENODEV;
2137
2138 error = pci_register_driver(&sym2_driver);
2139 if (error)
2140 spi_release_transport(sym2_transport_template);
2141 return error;
2142}
2143
2144static void __exit sym2_exit(void)
2145{
2146 pci_unregister_driver(&sym2_driver);
2147 spi_release_transport(sym2_transport_template);
2148}
2149
2150module_init(sym2_init);
2151module_exit(sym2_exit);
2152