67
68#include <dev/mpt/mpt.h>
69#include <dev/mpt/mpt_cam.h>
70#include <dev/mpt/mpt_raid.h>
71
72#if __FreeBSD_version < 500000
73#include <pci/pcireg.h>
74#include <pci/pcivar.h>
75#else
76#include <dev/pci/pcireg.h>
77#include <dev/pci/pcivar.h>
78#endif
79
80#ifndef PCI_VENDOR_LSI
81#define PCI_VENDOR_LSI 0x1000
82#endif
83
84#ifndef PCI_PRODUCT_LSI_FC909
85#define PCI_PRODUCT_LSI_FC909 0x0620
86#endif
87
88#ifndef PCI_PRODUCT_LSI_FC909A
89#define PCI_PRODUCT_LSI_FC909A 0x0621
90#endif
91
92#ifndef PCI_PRODUCT_LSI_FC919
93#define PCI_PRODUCT_LSI_FC919 0x0624
94#endif
95
96#ifndef PCI_PRODUCT_LSI_FC929
97#define PCI_PRODUCT_LSI_FC929 0x0622
98#endif
99
100#ifndef PCI_PRODUCT_LSI_1030
101#define PCI_PRODUCT_LSI_1030 0x0030
102#endif
103
104#ifndef PCIM_CMD_SERRESPEN
105#define PCIM_CMD_SERRESPEN 0x0100
106#endif
107
108
109
110#define MPT_IO_BAR 0
111#define MPT_MEM_BAR 1
112
113static int mpt_pci_probe(device_t);
114static int mpt_pci_attach(device_t);
115static void mpt_free_bus_resources(struct mpt_softc *mpt);
116static int mpt_pci_detach(device_t);
117static int mpt_pci_shutdown(device_t);
118static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
119static void mpt_dma_mem_free(struct mpt_softc *mpt);
120static void mpt_read_config_regs(struct mpt_softc *mpt);
121static void mpt_pci_intr(void *);
122
123static device_method_t mpt_methods[] = {
124 /* Device interface */
125 DEVMETHOD(device_probe, mpt_pci_probe),
126 DEVMETHOD(device_attach, mpt_pci_attach),
127 DEVMETHOD(device_detach, mpt_pci_detach),
128 DEVMETHOD(device_shutdown, mpt_pci_shutdown),
129 { 0, 0 }
130};
131
132static driver_t mpt_driver = {
133 "mpt", mpt_methods, sizeof(struct mpt_softc)
134};
135static devclass_t mpt_devclass;
136DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
137MODULE_VERSION(mpt, 1);
138
139static int
140mpt_pci_probe(device_t dev)
141{
142 char *desc;
143
144 if (pci_get_vendor(dev) != PCI_VENDOR_LSI)
145 return (ENXIO);
146
147 switch ((pci_get_device(dev) & ~1)) {
148 case PCI_PRODUCT_LSI_FC909:
149 desc = "LSILogic FC909 FC Adapter";
150 break;
151 case PCI_PRODUCT_LSI_FC909A:
152 desc = "LSILogic FC909A FC Adapter";
153 break;
154 case PCI_PRODUCT_LSI_FC919:
155 desc = "LSILogic FC919 FC Adapter";
156 break;
157 case PCI_PRODUCT_LSI_FC929:
158 desc = "LSILogic FC929 FC Adapter";
159 break;
160 case PCI_PRODUCT_LSI_1030:
161 desc = "LSILogic 1030 Ultra4 Adapter";
162 break;
163 default:
164 return (ENXIO);
165 }
166
167 device_set_desc(dev, desc);
168 return (0);
169}
170
171#ifdef RELENG_4
172static void
173mpt_set_options(struct mpt_softc *mpt)
174{
175 int bitmap;
176
177 bitmap = 0;
178 if (getenv_int("mpt_disable", &bitmap)) {
179 if (bitmap & (1 << mpt->unit)) {
180 mpt->disabled = 1;
181 }
182 }
183
184 bitmap = 0;
185 if (getenv_int("mpt_debug", &bitmap)) {
186 if (bitmap & (1 << mpt->unit)) {
187 mpt->verbose = MPT_PRT_DEBUG;
188 }
189 }
190
191}
192#else
193static void
194mpt_set_options(struct mpt_softc *mpt)
195{
196 int tval;
197
198 tval = 0;
199 if (resource_int_value(device_get_name(mpt->dev),
200 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
201 mpt->disabled = 1;
202 }
203 tval = 0;
204 if (resource_int_value(device_get_name(mpt->dev),
205 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
206 mpt->verbose += tval;
207 }
208}
209#endif
210
211
212static void
213mpt_link_peer(struct mpt_softc *mpt)
214{
215 struct mpt_softc *mpt2;
216
217 if (mpt->unit == 0)
218 return;
219
220 /*
221 * XXX: depends on probe order
222 */
223 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
224
225 if (mpt2 == NULL) {
226 return;
227 }
228 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
229 return;
230 }
231 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
232 return;
233 }
234 mpt->mpt2 = mpt2;
235 mpt2->mpt2 = mpt;
236 if (mpt->verbose >= MPT_PRT_DEBUG) {
237 mpt_prt(mpt, "linking with peer (mpt%d)\n",
238 device_get_unit(mpt2->dev));
239 }
240}
241
242
243static int
244mpt_pci_attach(device_t dev)
245{
246 struct mpt_softc *mpt;
247 int iqd;
248 uint32_t data, cmd;
249
250 /* Allocate the softc structure */
251 mpt = (struct mpt_softc*)device_get_softc(dev);
252 if (mpt == NULL) {
253 device_printf(dev, "cannot allocate softc\n");
254 return (ENOMEM);
255 }
256 bzero(mpt, sizeof(struct mpt_softc));
257 switch ((pci_get_device(dev) & ~1)) {
258 case PCI_PRODUCT_LSI_FC909:
259 case PCI_PRODUCT_LSI_FC909A:
260 case PCI_PRODUCT_LSI_FC919:
261 case PCI_PRODUCT_LSI_FC929:
262 mpt->is_fc = 1;
263 break;
264 default:
265 break;
266 }
267 mpt->dev = dev;
268 mpt->unit = device_get_unit(dev);
269 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
270 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
271 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
272 mpt_set_options(mpt);
273 mpt->verbose = MPT_PRT_INFO;
274 mpt->verbose += (bootverbose != 0)? 1 : 0;
275
276 /* Make sure memory access decoders are enabled */
277 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
278 if ((cmd & PCIM_CMD_MEMEN) == 0) {
279 device_printf(dev, "Memory accesses disabled");
280 goto bad;
281 }
282
283 /*
284 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
285 */
286 cmd |=
287 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
288 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
289 pci_write_config(dev, PCIR_COMMAND, cmd, 2);
290
291 /*
292 * Make sure we've disabled the ROM.
293 */
294 data = pci_read_config(dev, PCIR_BIOS, 4);
295 data &= ~1;
296 pci_write_config(dev, PCIR_BIOS, data, 4);
297
298 /*
299 * Is this part a dual?
300 * If so, link with our partner (around yet)
301 */
302 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
303 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
304 mpt_link_peer(mpt);
305 }
306
307 /*
308 * Set up register access. PIO mode is required for
309 * certain reset operations.
310 */
311 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
312 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
313 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
314 if (mpt->pci_pio_reg == NULL) {
315 device_printf(dev, "unable to map registers in PIO mode\n");
316 goto bad;
317 }
318 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
319 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
320
321 /* Allocate kernel virtual memory for the 9x9's Mem0 region */
322 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
323 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
324 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
325 if (mpt->pci_reg == NULL) {
326 device_printf(dev, "Unable to memory map registers.\n");
327 device_printf(dev, "Falling back to PIO mode.\n");
328 mpt->pci_st = mpt->pci_pio_st;
329 mpt->pci_sh = mpt->pci_pio_sh;
330 } else {
331 mpt->pci_st = rman_get_bustag(mpt->pci_reg);
332 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
333 }
334
335 /* Get a handle to the interrupt */
336 iqd = 0;
337#if __FreeBSD_version < 500000
338 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1,
339 RF_ACTIVE | RF_SHAREABLE);
340#else
341 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
342 RF_ACTIVE | RF_SHAREABLE);
343#endif
344 if (mpt->pci_irq == NULL) {
345 device_printf(dev, "could not allocate interrupt\n");
346 goto bad;
347 }
348
349 MPT_LOCK_SETUP(mpt);
350
351 /* Disable interrupts at the part */
352 mpt_disable_ints(mpt);
353
354 /* Register the interrupt handler */
355 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr,
356 mpt, &mpt->ih)) {
357 device_printf(dev, "could not setup interrupt\n");
358 goto bad;
359 }
360
361 /* Allocate dma memory */
362/* XXX JGibbs -Should really be done based on IOCFacts. */
363 if (mpt_dma_mem_alloc(mpt)) {
364 device_printf(dev, "Could not allocate DMA memory\n");
365 goto bad;
366 }
367
368 /*
369 * Save the PCI config register values
370 *
371 * Hard resets are known to screw up the BAR for diagnostic
372 * memory accesses (Mem1).
373 *
374 * Using Mem1 is known to make the chip stop responding to
375 * configuration space transfers, so we need to save it now
376 */
377
378 mpt_read_config_regs(mpt);
379
380 /* Initialize the hardware */
381 if (mpt->disabled == 0) {
382 MPT_LOCK(mpt);
383 if (mpt_attach(mpt) != 0) {
384 MPT_UNLOCK(mpt);
385 goto bad;
386 }
387 }
388
389 return (0);
390
391bad:
392 mpt_dma_mem_free(mpt);
393 mpt_free_bus_resources(mpt);
394
395 /*
396 * but return zero to preserve unit numbering
397 */
398 return (0);
399}
400
401/*
402 * Free bus resources
403 */
404static void
405mpt_free_bus_resources(struct mpt_softc *mpt)
406{
407 if (mpt->ih) {
408 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
409 mpt->ih = 0;
410 }
411
412 if (mpt->pci_irq) {
413 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq);
414 mpt->pci_irq = 0;
415 }
416
417 if (mpt->pci_pio_reg) {
418 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
419 mpt->pci_pio_reg);
420 mpt->pci_pio_reg = 0;
421 }
422 if (mpt->pci_reg) {
423 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
424 mpt->pci_reg);
425 mpt->pci_reg = 0;
426 }
427 MPT_LOCK_DESTROY(mpt);
428}
429
430
431/*
432 * Disconnect ourselves from the system.
433 */
434static int
435mpt_pci_detach(device_t dev)
436{
437 struct mpt_softc *mpt;
438
439 mpt = (struct mpt_softc*)device_get_softc(dev);
440 mpt_prt(mpt, "mpt_detach\n");
441
442 if (mpt) {
443 mpt_disable_ints(mpt);
444 mpt_detach(mpt);
445 mpt_reset(mpt, /*reinit*/FALSE);
446 mpt_dma_mem_free(mpt);
447 mpt_free_bus_resources(mpt);
448 if (mpt->raid_volumes != NULL
449 && mpt->ioc_page2 != NULL) {
450 int i;
451
452 for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
453 struct mpt_raid_volume *mpt_vol;
454
455 mpt_vol = &mpt->raid_volumes[i];
456 if (mpt_vol->config_page)
457 free(mpt_vol->config_page, M_DEVBUF);
458 }
459 }
460 if (mpt->ioc_page2 != NULL)
461 free(mpt->ioc_page2, M_DEVBUF);
462 if (mpt->ioc_page3 != NULL)
463 free(mpt->ioc_page3, M_DEVBUF);
464 if (mpt->raid_volumes != NULL)
465 free(mpt->raid_volumes, M_DEVBUF);
466 if (mpt->raid_disks != NULL)
467 free(mpt->raid_disks, M_DEVBUF);
468 if (mpt->eh != NULL)
469 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh);
470 }
471 return(0);
472}
473
474
475/*
476 * Disable the hardware
477 * XXX - Called too early by New Bus!!! ???
478 */
479static int
480mpt_pci_shutdown(device_t dev)
481{
482 struct mpt_softc *mpt;
483
484 mpt = (struct mpt_softc *)device_get_softc(dev);
485 if (mpt)
486 return (mpt_shutdown(mpt));
487 return(0);
488}
489
490static int
491mpt_dma_mem_alloc(struct mpt_softc *mpt)
492{
493 int i, error;
494 uint8_t *vptr;
495 uint32_t pptr, end;
496 size_t len;
497 struct mpt_map_info mi;
498 device_t dev = mpt->dev;
499
500 /* Check if we alreay have allocated the reply memory */
501 if (mpt->reply_phys != 0) {
502 return 0;
503 }
504
505 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
506#ifdef RELENG_4
507 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
508 if (mpt->request_pool == NULL) {
509 device_printf(dev, "cannot allocate request pool\n");
510 return (1);
511 }
512 bzero(mpt->request_pool, len);
513#else
514 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
515 if (mpt->request_pool == NULL) {
516 device_printf(dev, "cannot allocate request pool\n");
517 return (1);
518 }
519#endif
520
521 /*
522 * Create a parent dma tag for this device
523 *
524 * Align at byte boundaries, limit to 32-bit addressing
525 * (The chip supports 64-bit addressing, but this driver doesn't)
526 */
527 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1,
528 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
529 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
530 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
531 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
532 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
533 &mpt->parent_dmat) != 0) {
534 device_printf(dev, "cannot create parent dma tag\n");
535 return (1);
536 }
537
538 /* Create a child tag for reply buffers */
539 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
540 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
541 NULL, NULL, PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
542 &mpt->reply_dmat) != 0) {
543 device_printf(dev, "cannot create a dma tag for replies\n");
544 return (1);
545 }
546
547 /* Allocate some DMA accessable memory for replies */
548 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
549 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
550 device_printf(dev, "cannot allocate %lu bytes of reply memory\n",
551 (u_long)PAGE_SIZE);
552 return (1);
553 }
554
555 mi.mpt = mpt;
556 mi.error = 0;
557
558 /* Load and lock it into "bus space" */
559 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
560 PAGE_SIZE, mpt_map_rquest, &mi, 0);
561
562 if (mi.error) {
563 device_printf(dev,
564 "error %d loading dma map for DMA reply queue\n", mi.error);
565 return (1);
566 }
567 mpt->reply_phys = mi.phys;
568
569 /* Create a child tag for data buffers */
570 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
571 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
572 NULL, NULL, MAXBSIZE, MPT_SGL_MAX, BUS_SPACE_MAXSIZE_32BIT, 0,
573 &mpt->buffer_dmat) != 0) {
574 device_printf(dev,
575 "cannot create a dma tag for data buffers\n");
576 return (1);
577 }
578
579 /* Create a child tag for request buffers */
580 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
581 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
582 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
583 &mpt->request_dmat) != 0) {
584 device_printf(dev, "cannot create a dma tag for requests\n");
585 return (1);
586 }
587
588 /* Allocate some DMA accessable memory for requests */
589 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
590 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
591 device_printf(dev,
592 "cannot allocate %d bytes of request memory\n",
593 MPT_REQ_MEM_SIZE(mpt));
594 return (1);
595 }
596
597 mi.mpt = mpt;
598 mi.error = 0;
599
600 /* Load and lock it into "bus space" */
601 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
602 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
603
604 if (mi.error) {
605 device_printf(dev,
606 "error %d loading dma map for DMA request queue\n",
607 mi.error);
608 return (1);
609 }
610 mpt->request_phys = mi.phys;
611
612 i = 0;
613 pptr = mpt->request_phys;
614 vptr = mpt->request;
615 end = pptr + MPT_REQ_MEM_SIZE(mpt);
616 while(pptr < end) {
617 request_t *req = &mpt->request_pool[i];
618 req->index = i++;
619
620 /* Store location of Request Data */
621 req->req_pbuf = pptr;
622 req->req_vbuf = vptr;
623
624 pptr += MPT_REQUEST_AREA;
625 vptr += MPT_REQUEST_AREA;
626
627 req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
628 req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
629
630 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
631 if (error) {
632 device_printf(dev,
633 "error %d creating per-cmd DMA maps\n", error);
634 return (1);
635 }
636 }
637 return (0);
638}
639
640
641
642/* Deallocate memory that was allocated by mpt_dma_mem_alloc
643 */
644static void
645mpt_dma_mem_free(struct mpt_softc *mpt)
646{
647 int i;
648
649 /* Make sure we aren't double destroying */
650 if (mpt->reply_dmat == 0) {
651 if (mpt->verbose >= MPT_PRT_DEBUG)
652 device_printf(mpt->dev,"Already released dma memory\n");
653 return;
654 }
655
656 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
657 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
658 }
659 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
660 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
661 bus_dma_tag_destroy(mpt->request_dmat);
662 bus_dma_tag_destroy(mpt->buffer_dmat);
663 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
664 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
665 bus_dma_tag_destroy(mpt->reply_dmat);
666 bus_dma_tag_destroy(mpt->parent_dmat);
667 mpt->reply_dmat = 0;
668 free(mpt->request_pool, M_DEVBUF);
669 mpt->request_pool = 0;
670
671}
672
673
674
675/* Reads modifiable (via PCI transactions) config registers */
676static void
677mpt_read_config_regs(struct mpt_softc *mpt)
678{
679 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
680 mpt->pci_cfg.LatencyTimer_LineSize =
681 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
682 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
683 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
684 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
685 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
686 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
687 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
688 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
689 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
690}
691
692/* Sets modifiable config registers */
693void
694mpt_set_config_regs(struct mpt_softc *mpt)
695{
696 uint32_t val;
697
698#define MPT_CHECK(reg, offset, size) \
699 val = pci_read_config(mpt->dev, offset, size); \
700 if (mpt->pci_cfg.reg != val) { \
701 mpt_prt(mpt, \
702 "Restoring " #reg " to 0x%X from 0x%X\n", \
703 mpt->pci_cfg.reg, val); \
704 }
705
706 if (mpt->verbose >= MPT_PRT_DEBUG) {
707 MPT_CHECK(Command, PCIR_COMMAND, 2);
708 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
709 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
710 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
711 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
712 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
713 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
714 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
715 MPT_CHECK(IntLine, PCIR_INTLINE, 1);
716 MPT_CHECK(PMCSR, 0x44, 4);
717 }
718#undef MPT_CHECK
719
720 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
721 pci_write_config(mpt->dev, PCIR_CACHELNSZ,
722 mpt->pci_cfg.LatencyTimer_LineSize, 2);
723 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
724 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
725 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
726 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
727 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
728 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
729 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
730 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
731}
732
733static void
734mpt_pci_intr(void *arg)
735{
736 struct mpt_softc *mpt;
737
738 mpt = (struct mpt_softc *)arg;
739 MPT_LOCK(mpt);
740 mpt_intr(mpt);
741 MPT_UNLOCK(mpt);
742}
| 67
68#include <dev/mpt/mpt.h>
69#include <dev/mpt/mpt_cam.h>
70#include <dev/mpt/mpt_raid.h>
71
72#if __FreeBSD_version < 500000
73#include <pci/pcireg.h>
74#include <pci/pcivar.h>
75#else
76#include <dev/pci/pcireg.h>
77#include <dev/pci/pcivar.h>
78#endif
79
80#ifndef PCI_VENDOR_LSI
81#define PCI_VENDOR_LSI 0x1000
82#endif
83
84#ifndef PCI_PRODUCT_LSI_FC909
85#define PCI_PRODUCT_LSI_FC909 0x0620
86#endif
87
88#ifndef PCI_PRODUCT_LSI_FC909A
89#define PCI_PRODUCT_LSI_FC909A 0x0621
90#endif
91
92#ifndef PCI_PRODUCT_LSI_FC919
93#define PCI_PRODUCT_LSI_FC919 0x0624
94#endif
95
96#ifndef PCI_PRODUCT_LSI_FC929
97#define PCI_PRODUCT_LSI_FC929 0x0622
98#endif
99
100#ifndef PCI_PRODUCT_LSI_1030
101#define PCI_PRODUCT_LSI_1030 0x0030
102#endif
103
104#ifndef PCIM_CMD_SERRESPEN
105#define PCIM_CMD_SERRESPEN 0x0100
106#endif
107
108
109
110#define MPT_IO_BAR 0
111#define MPT_MEM_BAR 1
112
113static int mpt_pci_probe(device_t);
114static int mpt_pci_attach(device_t);
115static void mpt_free_bus_resources(struct mpt_softc *mpt);
116static int mpt_pci_detach(device_t);
117static int mpt_pci_shutdown(device_t);
118static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
119static void mpt_dma_mem_free(struct mpt_softc *mpt);
120static void mpt_read_config_regs(struct mpt_softc *mpt);
121static void mpt_pci_intr(void *);
122
123static device_method_t mpt_methods[] = {
124 /* Device interface */
125 DEVMETHOD(device_probe, mpt_pci_probe),
126 DEVMETHOD(device_attach, mpt_pci_attach),
127 DEVMETHOD(device_detach, mpt_pci_detach),
128 DEVMETHOD(device_shutdown, mpt_pci_shutdown),
129 { 0, 0 }
130};
131
132static driver_t mpt_driver = {
133 "mpt", mpt_methods, sizeof(struct mpt_softc)
134};
135static devclass_t mpt_devclass;
136DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
137MODULE_VERSION(mpt, 1);
138
139static int
140mpt_pci_probe(device_t dev)
141{
142 char *desc;
143
144 if (pci_get_vendor(dev) != PCI_VENDOR_LSI)
145 return (ENXIO);
146
147 switch ((pci_get_device(dev) & ~1)) {
148 case PCI_PRODUCT_LSI_FC909:
149 desc = "LSILogic FC909 FC Adapter";
150 break;
151 case PCI_PRODUCT_LSI_FC909A:
152 desc = "LSILogic FC909A FC Adapter";
153 break;
154 case PCI_PRODUCT_LSI_FC919:
155 desc = "LSILogic FC919 FC Adapter";
156 break;
157 case PCI_PRODUCT_LSI_FC929:
158 desc = "LSILogic FC929 FC Adapter";
159 break;
160 case PCI_PRODUCT_LSI_1030:
161 desc = "LSILogic 1030 Ultra4 Adapter";
162 break;
163 default:
164 return (ENXIO);
165 }
166
167 device_set_desc(dev, desc);
168 return (0);
169}
170
171#ifdef RELENG_4
172static void
173mpt_set_options(struct mpt_softc *mpt)
174{
175 int bitmap;
176
177 bitmap = 0;
178 if (getenv_int("mpt_disable", &bitmap)) {
179 if (bitmap & (1 << mpt->unit)) {
180 mpt->disabled = 1;
181 }
182 }
183
184 bitmap = 0;
185 if (getenv_int("mpt_debug", &bitmap)) {
186 if (bitmap & (1 << mpt->unit)) {
187 mpt->verbose = MPT_PRT_DEBUG;
188 }
189 }
190
191}
192#else
193static void
194mpt_set_options(struct mpt_softc *mpt)
195{
196 int tval;
197
198 tval = 0;
199 if (resource_int_value(device_get_name(mpt->dev),
200 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
201 mpt->disabled = 1;
202 }
203 tval = 0;
204 if (resource_int_value(device_get_name(mpt->dev),
205 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
206 mpt->verbose += tval;
207 }
208}
209#endif
210
211
212static void
213mpt_link_peer(struct mpt_softc *mpt)
214{
215 struct mpt_softc *mpt2;
216
217 if (mpt->unit == 0)
218 return;
219
220 /*
221 * XXX: depends on probe order
222 */
223 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
224
225 if (mpt2 == NULL) {
226 return;
227 }
228 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
229 return;
230 }
231 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
232 return;
233 }
234 mpt->mpt2 = mpt2;
235 mpt2->mpt2 = mpt;
236 if (mpt->verbose >= MPT_PRT_DEBUG) {
237 mpt_prt(mpt, "linking with peer (mpt%d)\n",
238 device_get_unit(mpt2->dev));
239 }
240}
241
242
243static int
244mpt_pci_attach(device_t dev)
245{
246 struct mpt_softc *mpt;
247 int iqd;
248 uint32_t data, cmd;
249
250 /* Allocate the softc structure */
251 mpt = (struct mpt_softc*)device_get_softc(dev);
252 if (mpt == NULL) {
253 device_printf(dev, "cannot allocate softc\n");
254 return (ENOMEM);
255 }
256 bzero(mpt, sizeof(struct mpt_softc));
257 switch ((pci_get_device(dev) & ~1)) {
258 case PCI_PRODUCT_LSI_FC909:
259 case PCI_PRODUCT_LSI_FC909A:
260 case PCI_PRODUCT_LSI_FC919:
261 case PCI_PRODUCT_LSI_FC929:
262 mpt->is_fc = 1;
263 break;
264 default:
265 break;
266 }
267 mpt->dev = dev;
268 mpt->unit = device_get_unit(dev);
269 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
270 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
271 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
272 mpt_set_options(mpt);
273 mpt->verbose = MPT_PRT_INFO;
274 mpt->verbose += (bootverbose != 0)? 1 : 0;
275
276 /* Make sure memory access decoders are enabled */
277 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
278 if ((cmd & PCIM_CMD_MEMEN) == 0) {
279 device_printf(dev, "Memory accesses disabled");
280 goto bad;
281 }
282
283 /*
284 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
285 */
286 cmd |=
287 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
288 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
289 pci_write_config(dev, PCIR_COMMAND, cmd, 2);
290
291 /*
292 * Make sure we've disabled the ROM.
293 */
294 data = pci_read_config(dev, PCIR_BIOS, 4);
295 data &= ~1;
296 pci_write_config(dev, PCIR_BIOS, data, 4);
297
298 /*
299 * Is this part a dual?
300 * If so, link with our partner (around yet)
301 */
302 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
303 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
304 mpt_link_peer(mpt);
305 }
306
307 /*
308 * Set up register access. PIO mode is required for
309 * certain reset operations.
310 */
311 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
312 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
313 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
314 if (mpt->pci_pio_reg == NULL) {
315 device_printf(dev, "unable to map registers in PIO mode\n");
316 goto bad;
317 }
318 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
319 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
320
321 /* Allocate kernel virtual memory for the 9x9's Mem0 region */
322 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
323 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
324 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
325 if (mpt->pci_reg == NULL) {
326 device_printf(dev, "Unable to memory map registers.\n");
327 device_printf(dev, "Falling back to PIO mode.\n");
328 mpt->pci_st = mpt->pci_pio_st;
329 mpt->pci_sh = mpt->pci_pio_sh;
330 } else {
331 mpt->pci_st = rman_get_bustag(mpt->pci_reg);
332 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
333 }
334
335 /* Get a handle to the interrupt */
336 iqd = 0;
337#if __FreeBSD_version < 500000
338 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1,
339 RF_ACTIVE | RF_SHAREABLE);
340#else
341 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
342 RF_ACTIVE | RF_SHAREABLE);
343#endif
344 if (mpt->pci_irq == NULL) {
345 device_printf(dev, "could not allocate interrupt\n");
346 goto bad;
347 }
348
349 MPT_LOCK_SETUP(mpt);
350
351 /* Disable interrupts at the part */
352 mpt_disable_ints(mpt);
353
354 /* Register the interrupt handler */
355 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr,
356 mpt, &mpt->ih)) {
357 device_printf(dev, "could not setup interrupt\n");
358 goto bad;
359 }
360
361 /* Allocate dma memory */
362/* XXX JGibbs -Should really be done based on IOCFacts. */
363 if (mpt_dma_mem_alloc(mpt)) {
364 device_printf(dev, "Could not allocate DMA memory\n");
365 goto bad;
366 }
367
368 /*
369 * Save the PCI config register values
370 *
371 * Hard resets are known to screw up the BAR for diagnostic
372 * memory accesses (Mem1).
373 *
374 * Using Mem1 is known to make the chip stop responding to
375 * configuration space transfers, so we need to save it now
376 */
377
378 mpt_read_config_regs(mpt);
379
380 /* Initialize the hardware */
381 if (mpt->disabled == 0) {
382 MPT_LOCK(mpt);
383 if (mpt_attach(mpt) != 0) {
384 MPT_UNLOCK(mpt);
385 goto bad;
386 }
387 }
388
389 return (0);
390
391bad:
392 mpt_dma_mem_free(mpt);
393 mpt_free_bus_resources(mpt);
394
395 /*
396 * but return zero to preserve unit numbering
397 */
398 return (0);
399}
400
401/*
402 * Free bus resources
403 */
404static void
405mpt_free_bus_resources(struct mpt_softc *mpt)
406{
407 if (mpt->ih) {
408 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
409 mpt->ih = 0;
410 }
411
412 if (mpt->pci_irq) {
413 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq);
414 mpt->pci_irq = 0;
415 }
416
417 if (mpt->pci_pio_reg) {
418 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
419 mpt->pci_pio_reg);
420 mpt->pci_pio_reg = 0;
421 }
422 if (mpt->pci_reg) {
423 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
424 mpt->pci_reg);
425 mpt->pci_reg = 0;
426 }
427 MPT_LOCK_DESTROY(mpt);
428}
429
430
431/*
432 * Disconnect ourselves from the system.
433 */
434static int
435mpt_pci_detach(device_t dev)
436{
437 struct mpt_softc *mpt;
438
439 mpt = (struct mpt_softc*)device_get_softc(dev);
440 mpt_prt(mpt, "mpt_detach\n");
441
442 if (mpt) {
443 mpt_disable_ints(mpt);
444 mpt_detach(mpt);
445 mpt_reset(mpt, /*reinit*/FALSE);
446 mpt_dma_mem_free(mpt);
447 mpt_free_bus_resources(mpt);
448 if (mpt->raid_volumes != NULL
449 && mpt->ioc_page2 != NULL) {
450 int i;
451
452 for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
453 struct mpt_raid_volume *mpt_vol;
454
455 mpt_vol = &mpt->raid_volumes[i];
456 if (mpt_vol->config_page)
457 free(mpt_vol->config_page, M_DEVBUF);
458 }
459 }
460 if (mpt->ioc_page2 != NULL)
461 free(mpt->ioc_page2, M_DEVBUF);
462 if (mpt->ioc_page3 != NULL)
463 free(mpt->ioc_page3, M_DEVBUF);
464 if (mpt->raid_volumes != NULL)
465 free(mpt->raid_volumes, M_DEVBUF);
466 if (mpt->raid_disks != NULL)
467 free(mpt->raid_disks, M_DEVBUF);
468 if (mpt->eh != NULL)
469 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh);
470 }
471 return(0);
472}
473
474
475/*
476 * Disable the hardware
477 * XXX - Called too early by New Bus!!! ???
478 */
479static int
480mpt_pci_shutdown(device_t dev)
481{
482 struct mpt_softc *mpt;
483
484 mpt = (struct mpt_softc *)device_get_softc(dev);
485 if (mpt)
486 return (mpt_shutdown(mpt));
487 return(0);
488}
489
490static int
491mpt_dma_mem_alloc(struct mpt_softc *mpt)
492{
493 int i, error;
494 uint8_t *vptr;
495 uint32_t pptr, end;
496 size_t len;
497 struct mpt_map_info mi;
498 device_t dev = mpt->dev;
499
500 /* Check if we alreay have allocated the reply memory */
501 if (mpt->reply_phys != 0) {
502 return 0;
503 }
504
505 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
506#ifdef RELENG_4
507 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
508 if (mpt->request_pool == NULL) {
509 device_printf(dev, "cannot allocate request pool\n");
510 return (1);
511 }
512 bzero(mpt->request_pool, len);
513#else
514 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
515 if (mpt->request_pool == NULL) {
516 device_printf(dev, "cannot allocate request pool\n");
517 return (1);
518 }
519#endif
520
521 /*
522 * Create a parent dma tag for this device
523 *
524 * Align at byte boundaries, limit to 32-bit addressing
525 * (The chip supports 64-bit addressing, but this driver doesn't)
526 */
527 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1,
528 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
529 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
530 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
531 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
532 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
533 &mpt->parent_dmat) != 0) {
534 device_printf(dev, "cannot create parent dma tag\n");
535 return (1);
536 }
537
538 /* Create a child tag for reply buffers */
539 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
540 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
541 NULL, NULL, PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
542 &mpt->reply_dmat) != 0) {
543 device_printf(dev, "cannot create a dma tag for replies\n");
544 return (1);
545 }
546
547 /* Allocate some DMA accessable memory for replies */
548 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
549 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
550 device_printf(dev, "cannot allocate %lu bytes of reply memory\n",
551 (u_long)PAGE_SIZE);
552 return (1);
553 }
554
555 mi.mpt = mpt;
556 mi.error = 0;
557
558 /* Load and lock it into "bus space" */
559 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
560 PAGE_SIZE, mpt_map_rquest, &mi, 0);
561
562 if (mi.error) {
563 device_printf(dev,
564 "error %d loading dma map for DMA reply queue\n", mi.error);
565 return (1);
566 }
567 mpt->reply_phys = mi.phys;
568
569 /* Create a child tag for data buffers */
570 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
571 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
572 NULL, NULL, MAXBSIZE, MPT_SGL_MAX, BUS_SPACE_MAXSIZE_32BIT, 0,
573 &mpt->buffer_dmat) != 0) {
574 device_printf(dev,
575 "cannot create a dma tag for data buffers\n");
576 return (1);
577 }
578
579 /* Create a child tag for request buffers */
580 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
581 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
582 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
583 &mpt->request_dmat) != 0) {
584 device_printf(dev, "cannot create a dma tag for requests\n");
585 return (1);
586 }
587
588 /* Allocate some DMA accessable memory for requests */
589 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
590 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
591 device_printf(dev,
592 "cannot allocate %d bytes of request memory\n",
593 MPT_REQ_MEM_SIZE(mpt));
594 return (1);
595 }
596
597 mi.mpt = mpt;
598 mi.error = 0;
599
600 /* Load and lock it into "bus space" */
601 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
602 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
603
604 if (mi.error) {
605 device_printf(dev,
606 "error %d loading dma map for DMA request queue\n",
607 mi.error);
608 return (1);
609 }
610 mpt->request_phys = mi.phys;
611
612 i = 0;
613 pptr = mpt->request_phys;
614 vptr = mpt->request;
615 end = pptr + MPT_REQ_MEM_SIZE(mpt);
616 while(pptr < end) {
617 request_t *req = &mpt->request_pool[i];
618 req->index = i++;
619
620 /* Store location of Request Data */
621 req->req_pbuf = pptr;
622 req->req_vbuf = vptr;
623
624 pptr += MPT_REQUEST_AREA;
625 vptr += MPT_REQUEST_AREA;
626
627 req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
628 req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
629
630 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
631 if (error) {
632 device_printf(dev,
633 "error %d creating per-cmd DMA maps\n", error);
634 return (1);
635 }
636 }
637 return (0);
638}
639
640
641
642/* Deallocate memory that was allocated by mpt_dma_mem_alloc
643 */
644static void
645mpt_dma_mem_free(struct mpt_softc *mpt)
646{
647 int i;
648
649 /* Make sure we aren't double destroying */
650 if (mpt->reply_dmat == 0) {
651 if (mpt->verbose >= MPT_PRT_DEBUG)
652 device_printf(mpt->dev,"Already released dma memory\n");
653 return;
654 }
655
656 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
657 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
658 }
659 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
660 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
661 bus_dma_tag_destroy(mpt->request_dmat);
662 bus_dma_tag_destroy(mpt->buffer_dmat);
663 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
664 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
665 bus_dma_tag_destroy(mpt->reply_dmat);
666 bus_dma_tag_destroy(mpt->parent_dmat);
667 mpt->reply_dmat = 0;
668 free(mpt->request_pool, M_DEVBUF);
669 mpt->request_pool = 0;
670
671}
672
673
674
675/* Reads modifiable (via PCI transactions) config registers */
676static void
677mpt_read_config_regs(struct mpt_softc *mpt)
678{
679 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
680 mpt->pci_cfg.LatencyTimer_LineSize =
681 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
682 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
683 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
684 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
685 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
686 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
687 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
688 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
689 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
690}
691
692/* Sets modifiable config registers */
693void
694mpt_set_config_regs(struct mpt_softc *mpt)
695{
696 uint32_t val;
697
698#define MPT_CHECK(reg, offset, size) \
699 val = pci_read_config(mpt->dev, offset, size); \
700 if (mpt->pci_cfg.reg != val) { \
701 mpt_prt(mpt, \
702 "Restoring " #reg " to 0x%X from 0x%X\n", \
703 mpt->pci_cfg.reg, val); \
704 }
705
706 if (mpt->verbose >= MPT_PRT_DEBUG) {
707 MPT_CHECK(Command, PCIR_COMMAND, 2);
708 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
709 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
710 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
711 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
712 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
713 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
714 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
715 MPT_CHECK(IntLine, PCIR_INTLINE, 1);
716 MPT_CHECK(PMCSR, 0x44, 4);
717 }
718#undef MPT_CHECK
719
720 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
721 pci_write_config(mpt->dev, PCIR_CACHELNSZ,
722 mpt->pci_cfg.LatencyTimer_LineSize, 2);
723 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
724 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
725 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
726 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
727 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
728 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
729 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
730 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
731}
732
733static void
734mpt_pci_intr(void *arg)
735{
736 struct mpt_softc *mpt;
737
738 mpt = (struct mpt_softc *)arg;
739 MPT_LOCK(mpt);
740 mpt_intr(mpt);
741 MPT_UNLOCK(mpt);
742}
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