1/*-
2 * PCI specific probe and attach routines for LSI Fusion Adapters
3 * FreeBSD Version.
4 *
5 * Copyright (c) 2000, 2001 by Greg Ansley
6 * Partially derived from Matt Jacob's ISP driver.
7 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002 by Matthew Jacob
8 * Feral Software
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice immediately at the beginning of the file, without modification,
16 * this list of conditions, and the following disclaimer.
17 * 2. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32/*
33 * Copyright (c) 2004, Avid Technology, Inc. and its contributors.
34 * Copyright (c) 2005, WHEEL Sp. z o.o.
35 * Copyright (c) 2004, 2005 Justin T. Gibbs
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions are
40 * met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
44 * substantially similar to the "NO WARRANTY" disclaimer below
45 * ("Disclaimer") and any redistribution must be conditioned upon including
46 * a substantially similar Disclaimer requirement for further binary
47 * redistribution.
48 * 3. Neither the names of the above listed copyright holders nor the names
49 * of any contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
53 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
56 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
57 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
58 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
59 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
60 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
62 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 */
64
65#include <sys/cdefs.h>
66__FBSDID("$FreeBSD: head/sys/dev/mpt/mpt_pci.c 150007 2005-09-11 19:58:19Z mjacob $");
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_FC929X
101#define PCI_PRODUCT_LSI_FC929X 0x0626
102#endif
103
104#ifndef PCI_PRODUCT_LSI_1030
105#define PCI_PRODUCT_LSI_1030 0x0030
106#endif
107
108#ifndef PCIM_CMD_SERRESPEN
109#define PCIM_CMD_SERRESPEN 0x0100
110#endif
111
112
113
114#define MPT_IO_BAR 0
115#define MPT_MEM_BAR 1
116
117static int mpt_pci_probe(device_t);
118static int mpt_pci_attach(device_t);
119static void mpt_free_bus_resources(struct mpt_softc *mpt);
120static int mpt_pci_detach(device_t);
121static int mpt_pci_shutdown(device_t);
122static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
123static void mpt_dma_mem_free(struct mpt_softc *mpt);
124static void mpt_read_config_regs(struct mpt_softc *mpt);
125static void mpt_pci_intr(void *);
126
127static device_method_t mpt_methods[] = {
128 /* Device interface */
129 DEVMETHOD(device_probe, mpt_pci_probe),
130 DEVMETHOD(device_attach, mpt_pci_attach),
131 DEVMETHOD(device_detach, mpt_pci_detach),
132 DEVMETHOD(device_shutdown, mpt_pci_shutdown),
133 { 0, 0 }
134};
135
136static driver_t mpt_driver = {
137 "mpt", mpt_methods, sizeof(struct mpt_softc)
138};
139static devclass_t mpt_devclass;
140DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
141MODULE_VERSION(mpt, 1);
142
143static int
144mpt_pci_probe(device_t dev)
145{
146 char *desc;
147
148 if (pci_get_vendor(dev) != PCI_VENDOR_LSI)
149 return (ENXIO);
150
151 switch ((pci_get_device(dev) & ~1)) {
152 case PCI_PRODUCT_LSI_FC909:
153 desc = "LSILogic FC909 FC Adapter";
154 break;
155 case PCI_PRODUCT_LSI_FC909A:
156 desc = "LSILogic FC909A FC Adapter";
157 break;
158 case PCI_PRODUCT_LSI_FC919:
159 desc = "LSILogic FC919 FC Adapter";
160 break;
161 case PCI_PRODUCT_LSI_FC929:
162 desc = "LSILogic FC929 FC Adapter";
163 break;
164 case PCI_PRODUCT_LSI_FC929X:
165 desc = "LSILogic FC929X FC Adapter";
166 break;
167 case PCI_PRODUCT_LSI_1030:
168 desc = "LSILogic 1030 Ultra4 Adapter";
169 break;
170 default:
171 return (ENXIO);
172 }
173
174 device_set_desc(dev, desc);
175 return (0);
176}
177
178#ifdef RELENG_4
179static void
180mpt_set_options(struct mpt_softc *mpt)
181{
182 int bitmap;
183
184 bitmap = 0;
185 if (getenv_int("mpt_disable", &bitmap)) {
186 if (bitmap & (1 << mpt->unit)) {
187 mpt->disabled = 1;
188 }
189 }
190
191 bitmap = 0;
192 if (getenv_int("mpt_debug", &bitmap)) {
193 if (bitmap & (1 << mpt->unit)) {
194 mpt->verbose = MPT_PRT_DEBUG;
195 }
196 }
197
198}
199#else
200static void
201mpt_set_options(struct mpt_softc *mpt)
202{
203 int tval;
204
205 tval = 0;
206 if (resource_int_value(device_get_name(mpt->dev),
207 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
208 mpt->disabled = 1;
209 }
210 tval = 0;
211 if (resource_int_value(device_get_name(mpt->dev),
212 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
213 mpt->verbose += tval;
214 }
215}
216#endif
217
218
219static void
220mpt_link_peer(struct mpt_softc *mpt)
221{
222 struct mpt_softc *mpt2;
223
224 if (mpt->unit == 0)
225 return;
226
227 /*
228 * XXX: depends on probe order
229 */
230 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
231
232 if (mpt2 == NULL) {
233 return;
234 }
235 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
236 return;
237 }
238 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
239 return;
240 }
241 mpt->mpt2 = mpt2;
242 mpt2->mpt2 = mpt;
243 if (mpt->verbose >= MPT_PRT_DEBUG) {
244 mpt_prt(mpt, "linking with peer (mpt%d)\n",
245 device_get_unit(mpt2->dev));
246 }
247}
248
249
250static int
251mpt_pci_attach(device_t dev)
252{
253 struct mpt_softc *mpt;
254 int iqd;
255 uint32_t data, cmd;
256
257 /* Allocate the softc structure */
258 mpt = (struct mpt_softc*)device_get_softc(dev);
259 if (mpt == NULL) {
260 device_printf(dev, "cannot allocate softc\n");
261 return (ENOMEM);
262 }
263 bzero(mpt, sizeof(struct mpt_softc));
264 switch ((pci_get_device(dev) & ~1)) {
265 case PCI_PRODUCT_LSI_FC909:
266 case PCI_PRODUCT_LSI_FC909A:
267 case PCI_PRODUCT_LSI_FC919:
268 case PCI_PRODUCT_LSI_FC929:
269 mpt->is_fc = 1;
270 break;
271 default:
272 break;
273 }
274 mpt->dev = dev;
275 mpt->unit = device_get_unit(dev);
276 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
277 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
278 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
279 mpt_set_options(mpt);
280 mpt->verbose = MPT_PRT_INFO;
281 mpt->verbose += (bootverbose != 0)? 1 : 0;
282
283 /* Make sure memory access decoders are enabled */
284 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
285 if ((cmd & PCIM_CMD_MEMEN) == 0) {
286 device_printf(dev, "Memory accesses disabled");
287 goto bad;
288 }
289
290 /*
291 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
292 */
293 cmd |=
294 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
295 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
296 pci_write_config(dev, PCIR_COMMAND, cmd, 2);
297
298 /*
299 * Make sure we've disabled the ROM.
300 */
301 data = pci_read_config(dev, PCIR_BIOS, 4);
302 data &= ~1;
303 pci_write_config(dev, PCIR_BIOS, data, 4);
304
305 /*
306 * Is this part a dual?
307 * If so, link with our partner (around yet)
308 */
309 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
310 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
311 mpt_link_peer(mpt);
312 }
313
314 /*
315 * Set up register access. PIO mode is required for
316 * certain reset operations.
317 */
318 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
319 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
320 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
321 if (mpt->pci_pio_reg == NULL) {
322 device_printf(dev, "unable to map registers in PIO mode\n");
323 goto bad;
324 }
325 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
326 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
327
328 /* Allocate kernel virtual memory for the 9x9's Mem0 region */
329 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
330 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
331 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
332 if (mpt->pci_reg == NULL) {
333 device_printf(dev, "Unable to memory map registers.\n");
334 device_printf(dev, "Falling back to PIO mode.\n");
335 mpt->pci_st = mpt->pci_pio_st;
336 mpt->pci_sh = mpt->pci_pio_sh;
337 } else {
338 mpt->pci_st = rman_get_bustag(mpt->pci_reg);
339 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
340 }
341
342 /* Get a handle to the interrupt */
343 iqd = 0;
344#if __FreeBSD_version < 500000
345 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1,
346 RF_ACTIVE | RF_SHAREABLE);
347#else
348 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
349 RF_ACTIVE | RF_SHAREABLE);
350#endif
351 if (mpt->pci_irq == NULL) {
352 device_printf(dev, "could not allocate interrupt\n");
353 goto bad;
354 }
355
356 MPT_LOCK_SETUP(mpt);
357
358 /* Disable interrupts at the part */
359 mpt_disable_ints(mpt);
360
361 /* Register the interrupt handler */
362 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr,
363 mpt, &mpt->ih)) {
364 device_printf(dev, "could not setup interrupt\n");
365 goto bad;
366 }
367
368 /* Allocate dma memory */
369/* XXX JGibbs -Should really be done based on IOCFacts. */
370 if (mpt_dma_mem_alloc(mpt)) {
371 device_printf(dev, "Could not allocate DMA memory\n");
372 goto bad;
373 }
374
375 /*
376 * Save the PCI config register values
377 *
378 * Hard resets are known to screw up the BAR for diagnostic
379 * memory accesses (Mem1).
380 *
381 * Using Mem1 is known to make the chip stop responding to
382 * configuration space transfers, so we need to save it now
383 */
384
385 mpt_read_config_regs(mpt);
386
387 /* Initialize the hardware */
388 if (mpt->disabled == 0) {
389 MPT_LOCK(mpt);
390 if (mpt_attach(mpt) != 0) {
391 MPT_UNLOCK(mpt);
392 goto bad;
393 }
394 }
395
396 return (0);
397
398bad:
399 mpt_dma_mem_free(mpt);
400 mpt_free_bus_resources(mpt);
401
402 /*
403 * but return zero to preserve unit numbering
404 */
405 return (0);
406}
407
408/*
409 * Free bus resources
410 */
411static void
412mpt_free_bus_resources(struct mpt_softc *mpt)
413{
414 if (mpt->ih) {
415 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
416 mpt->ih = 0;
417 }
418
419 if (mpt->pci_irq) {
420 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq);
421 mpt->pci_irq = 0;
422 }
423
424 if (mpt->pci_pio_reg) {
425 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
426 mpt->pci_pio_reg);
427 mpt->pci_pio_reg = 0;
428 }
429 if (mpt->pci_reg) {
430 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
431 mpt->pci_reg);
432 mpt->pci_reg = 0;
433 }
434 MPT_LOCK_DESTROY(mpt);
435}
436
437
438/*
439 * Disconnect ourselves from the system.
440 */
441static int
442mpt_pci_detach(device_t dev)
443{
444 struct mpt_softc *mpt;
445
446 mpt = (struct mpt_softc*)device_get_softc(dev);
447 mpt_prt(mpt, "mpt_detach\n");
448
449 if (mpt) {
450 mpt_disable_ints(mpt);
451 mpt_detach(mpt);
452 mpt_reset(mpt, /*reinit*/FALSE);
453 mpt_dma_mem_free(mpt);
454 mpt_free_bus_resources(mpt);
455 if (mpt->raid_volumes != NULL
456 && mpt->ioc_page2 != NULL) {
457 int i;
458
459 for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
460 struct mpt_raid_volume *mpt_vol;
461
462 mpt_vol = &mpt->raid_volumes[i];
463 if (mpt_vol->config_page)
464 free(mpt_vol->config_page, M_DEVBUF);
465 }
466 }
467 if (mpt->ioc_page2 != NULL)
468 free(mpt->ioc_page2, M_DEVBUF);
469 if (mpt->ioc_page3 != NULL)
470 free(mpt->ioc_page3, M_DEVBUF);
471 if (mpt->raid_volumes != NULL)
472 free(mpt->raid_volumes, M_DEVBUF);
473 if (mpt->raid_disks != NULL)
474 free(mpt->raid_disks, M_DEVBUF);
475 if (mpt->eh != NULL)
476 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh);
477 }
478 return(0);
479}
480
481
482/*
483 * Disable the hardware
484 * XXX - Called too early by New Bus!!! ???
485 */
486static int
487mpt_pci_shutdown(device_t dev)
488{
489 struct mpt_softc *mpt;
490
491 mpt = (struct mpt_softc *)device_get_softc(dev);
492 if (mpt)
493 return (mpt_shutdown(mpt));
494 return(0);
495}
496
497static int
498mpt_dma_mem_alloc(struct mpt_softc *mpt)
499{
500 int i, error;
501 uint8_t *vptr;
502 uint32_t pptr, end;
503 size_t len;
504 struct mpt_map_info mi;
505 device_t dev = mpt->dev;
506
507 /* Check if we alreay have allocated the reply memory */
508 if (mpt->reply_phys != 0) {
509 return 0;
510 }
511
512 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
513#ifdef RELENG_4
514 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
515 if (mpt->request_pool == NULL) {
516 device_printf(dev, "cannot allocate request pool\n");
517 return (1);
518 }
519 bzero(mpt->request_pool, len);
520#else
521 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
522 if (mpt->request_pool == NULL) {
523 device_printf(dev, "cannot allocate request pool\n");
524 return (1);
525 }
526#endif
527
528 /*
529 * Create a parent dma tag for this device
530 *
531 * Align at byte boundaries, limit to 32-bit addressing
532 * (The chip supports 64-bit addressing, but this driver doesn't)
533 */
534 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1,
535 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
536 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
537 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
538 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
539 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
540 &mpt->parent_dmat) != 0) {
541 device_printf(dev, "cannot create parent dma tag\n");
542 return (1);
543 }
544
545 /* Create a child tag for reply buffers */
546 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
547 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
548 NULL, NULL, PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
549 &mpt->reply_dmat) != 0) {
550 device_printf(dev, "cannot create a dma tag for replies\n");
551 return (1);
552 }
553
554 /* Allocate some DMA accessable memory for replies */
555 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
556 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
557 device_printf(dev, "cannot allocate %lu bytes of reply memory\n",
558 (u_long)PAGE_SIZE);
559 return (1);
560 }
561
562 mi.mpt = mpt;
563 mi.error = 0;
564
565 /* Load and lock it into "bus space" */
566 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
567 PAGE_SIZE, mpt_map_rquest, &mi, 0);
568
569 if (mi.error) {
570 device_printf(dev,
571 "error %d loading dma map for DMA reply queue\n", mi.error);
572 return (1);
573 }
574 mpt->reply_phys = mi.phys;
575
576 /* Create a child tag for data buffers */
577 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
578 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
579 NULL, NULL, MAXBSIZE, MPT_SGL_MAX, BUS_SPACE_MAXSIZE_32BIT, 0,
580 &mpt->buffer_dmat) != 0) {
581 device_printf(dev,
582 "cannot create a dma tag for data buffers\n");
583 return (1);
584 }
585
586 /* Create a child tag for request buffers */
587 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
588 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
589 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
590 &mpt->request_dmat) != 0) {
591 device_printf(dev, "cannot create a dma tag for requests\n");
592 return (1);
593 }
594
595 /* Allocate some DMA accessable memory for requests */
596 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
597 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
598 device_printf(dev,
599 "cannot allocate %d bytes of request memory\n",
600 MPT_REQ_MEM_SIZE(mpt));
601 return (1);
602 }
603
604 mi.mpt = mpt;
605 mi.error = 0;
606
607 /* Load and lock it into "bus space" */
608 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
609 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
610
611 if (mi.error) {
612 device_printf(dev,
613 "error %d loading dma map for DMA request queue\n",
614 mi.error);
615 return (1);
616 }
617 mpt->request_phys = mi.phys;
618
619 i = 0;
620 pptr = mpt->request_phys;
621 vptr = mpt->request;
622 end = pptr + MPT_REQ_MEM_SIZE(mpt);
623 while(pptr < end) {
624 request_t *req = &mpt->request_pool[i];
625 req->index = i++;
626
627 /* Store location of Request Data */
628 req->req_pbuf = pptr;
629 req->req_vbuf = vptr;
630
631 pptr += MPT_REQUEST_AREA;
632 vptr += MPT_REQUEST_AREA;
633
634 req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
635 req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
636
637 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
638 if (error) {
639 device_printf(dev,
640 "error %d creating per-cmd DMA maps\n", error);
641 return (1);
642 }
643 }
644 return (0);
645}
646
647
648
649/* Deallocate memory that was allocated by mpt_dma_mem_alloc
650 */
651static void
652mpt_dma_mem_free(struct mpt_softc *mpt)
653{
654 int i;
655
656 /* Make sure we aren't double destroying */
657 if (mpt->reply_dmat == 0) {
658 if (mpt->verbose >= MPT_PRT_DEBUG)
659 device_printf(mpt->dev,"Already released dma memory\n");
660 return;
661 }
662
663 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
664 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
665 }
666 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
667 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
668 bus_dma_tag_destroy(mpt->request_dmat);
669 bus_dma_tag_destroy(mpt->buffer_dmat);
670 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
671 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
672 bus_dma_tag_destroy(mpt->reply_dmat);
673 bus_dma_tag_destroy(mpt->parent_dmat);
674 mpt->reply_dmat = 0;
675 free(mpt->request_pool, M_DEVBUF);
676 mpt->request_pool = 0;
677
678}
679
680
681
682/* Reads modifiable (via PCI transactions) config registers */
683static void
684mpt_read_config_regs(struct mpt_softc *mpt)
685{
686 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
687 mpt->pci_cfg.LatencyTimer_LineSize =
688 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
689 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
690 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
691 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
692 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
693 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
694 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
695 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
696 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
697}
698
699/* Sets modifiable config registers */
700void
701mpt_set_config_regs(struct mpt_softc *mpt)
702{
703 uint32_t val;
704
705#define MPT_CHECK(reg, offset, size) \
706 val = pci_read_config(mpt->dev, offset, size); \
707 if (mpt->pci_cfg.reg != val) { \
708 mpt_prt(mpt, \
709 "Restoring " #reg " to 0x%X from 0x%X\n", \
710 mpt->pci_cfg.reg, val); \
711 }
712
713 if (mpt->verbose >= MPT_PRT_DEBUG) {
714 MPT_CHECK(Command, PCIR_COMMAND, 2);
715 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
716 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
717 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
718 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
719 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
720 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
721 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
722 MPT_CHECK(IntLine, PCIR_INTLINE, 1);
723 MPT_CHECK(PMCSR, 0x44, 4);
724 }
725#undef MPT_CHECK
726
727 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
728 pci_write_config(mpt->dev, PCIR_CACHELNSZ,
729 mpt->pci_cfg.LatencyTimer_LineSize, 2);
730 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
731 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
732 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
733 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
734 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
735 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
736 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
737 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
738}
739
740static void
741mpt_pci_intr(void *arg)
742{
743 struct mpt_softc *mpt;
744
745 mpt = (struct mpt_softc *)arg;
746 MPT_LOCK(mpt);
747 mpt_intr(mpt);
748 MPT_UNLOCK(mpt);
749}
2 * PCI specific probe and attach routines for LSI Fusion Adapters
3 * FreeBSD Version.
4 *
5 * Copyright (c) 2000, 2001 by Greg Ansley
6 * Partially derived from Matt Jacob's ISP driver.
7 * Copyright (c) 1997, 1998, 1999, 2000, 2001, 2002 by Matthew Jacob
8 * Feral Software
9 * All rights reserved.
10 *
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
13 * are met:
14 * 1. Redistributions of source code must retain the above copyright
15 * notice immediately at the beginning of the file, without modification,
16 * this list of conditions, and the following disclaimer.
17 * 2. The name of the author may not be used to endorse or promote products
18 * derived from this software without specific prior written permission.
19 *
20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE FOR
24 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30 * SUCH DAMAGE.
31 */
32/*
33 * Copyright (c) 2004, Avid Technology, Inc. and its contributors.
34 * Copyright (c) 2005, WHEEL Sp. z o.o.
35 * Copyright (c) 2004, 2005 Justin T. Gibbs
36 * All rights reserved.
37 *
38 * Redistribution and use in source and binary forms, with or without
39 * modification, are permitted provided that the following conditions are
40 * met:
41 * 1. Redistributions of source code must retain the above copyright
42 * notice, this list of conditions and the following disclaimer.
43 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
44 * substantially similar to the "NO WARRANTY" disclaimer below
45 * ("Disclaimer") and any redistribution must be conditioned upon including
46 * a substantially similar Disclaimer requirement for further binary
47 * redistribution.
48 * 3. Neither the names of the above listed copyright holders nor the names
49 * of any contributors may be used to endorse or promote products derived
50 * from this software without specific prior written permission.
51 *
52 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
53 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
54 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
55 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
56 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
57 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
58 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
59 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
60 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
61 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
62 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
63 */
64
65#include <sys/cdefs.h>
66__FBSDID("$FreeBSD: head/sys/dev/mpt/mpt_pci.c 150007 2005-09-11 19:58:19Z mjacob $");
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_FC929X
101#define PCI_PRODUCT_LSI_FC929X 0x0626
102#endif
103
104#ifndef PCI_PRODUCT_LSI_1030
105#define PCI_PRODUCT_LSI_1030 0x0030
106#endif
107
108#ifndef PCIM_CMD_SERRESPEN
109#define PCIM_CMD_SERRESPEN 0x0100
110#endif
111
112
113
114#define MPT_IO_BAR 0
115#define MPT_MEM_BAR 1
116
117static int mpt_pci_probe(device_t);
118static int mpt_pci_attach(device_t);
119static void mpt_free_bus_resources(struct mpt_softc *mpt);
120static int mpt_pci_detach(device_t);
121static int mpt_pci_shutdown(device_t);
122static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
123static void mpt_dma_mem_free(struct mpt_softc *mpt);
124static void mpt_read_config_regs(struct mpt_softc *mpt);
125static void mpt_pci_intr(void *);
126
127static device_method_t mpt_methods[] = {
128 /* Device interface */
129 DEVMETHOD(device_probe, mpt_pci_probe),
130 DEVMETHOD(device_attach, mpt_pci_attach),
131 DEVMETHOD(device_detach, mpt_pci_detach),
132 DEVMETHOD(device_shutdown, mpt_pci_shutdown),
133 { 0, 0 }
134};
135
136static driver_t mpt_driver = {
137 "mpt", mpt_methods, sizeof(struct mpt_softc)
138};
139static devclass_t mpt_devclass;
140DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
141MODULE_VERSION(mpt, 1);
142
143static int
144mpt_pci_probe(device_t dev)
145{
146 char *desc;
147
148 if (pci_get_vendor(dev) != PCI_VENDOR_LSI)
149 return (ENXIO);
150
151 switch ((pci_get_device(dev) & ~1)) {
152 case PCI_PRODUCT_LSI_FC909:
153 desc = "LSILogic FC909 FC Adapter";
154 break;
155 case PCI_PRODUCT_LSI_FC909A:
156 desc = "LSILogic FC909A FC Adapter";
157 break;
158 case PCI_PRODUCT_LSI_FC919:
159 desc = "LSILogic FC919 FC Adapter";
160 break;
161 case PCI_PRODUCT_LSI_FC929:
162 desc = "LSILogic FC929 FC Adapter";
163 break;
164 case PCI_PRODUCT_LSI_FC929X:
165 desc = "LSILogic FC929X FC Adapter";
166 break;
167 case PCI_PRODUCT_LSI_1030:
168 desc = "LSILogic 1030 Ultra4 Adapter";
169 break;
170 default:
171 return (ENXIO);
172 }
173
174 device_set_desc(dev, desc);
175 return (0);
176}
177
178#ifdef RELENG_4
179static void
180mpt_set_options(struct mpt_softc *mpt)
181{
182 int bitmap;
183
184 bitmap = 0;
185 if (getenv_int("mpt_disable", &bitmap)) {
186 if (bitmap & (1 << mpt->unit)) {
187 mpt->disabled = 1;
188 }
189 }
190
191 bitmap = 0;
192 if (getenv_int("mpt_debug", &bitmap)) {
193 if (bitmap & (1 << mpt->unit)) {
194 mpt->verbose = MPT_PRT_DEBUG;
195 }
196 }
197
198}
199#else
200static void
201mpt_set_options(struct mpt_softc *mpt)
202{
203 int tval;
204
205 tval = 0;
206 if (resource_int_value(device_get_name(mpt->dev),
207 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
208 mpt->disabled = 1;
209 }
210 tval = 0;
211 if (resource_int_value(device_get_name(mpt->dev),
212 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
213 mpt->verbose += tval;
214 }
215}
216#endif
217
218
219static void
220mpt_link_peer(struct mpt_softc *mpt)
221{
222 struct mpt_softc *mpt2;
223
224 if (mpt->unit == 0)
225 return;
226
227 /*
228 * XXX: depends on probe order
229 */
230 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
231
232 if (mpt2 == NULL) {
233 return;
234 }
235 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
236 return;
237 }
238 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
239 return;
240 }
241 mpt->mpt2 = mpt2;
242 mpt2->mpt2 = mpt;
243 if (mpt->verbose >= MPT_PRT_DEBUG) {
244 mpt_prt(mpt, "linking with peer (mpt%d)\n",
245 device_get_unit(mpt2->dev));
246 }
247}
248
249
250static int
251mpt_pci_attach(device_t dev)
252{
253 struct mpt_softc *mpt;
254 int iqd;
255 uint32_t data, cmd;
256
257 /* Allocate the softc structure */
258 mpt = (struct mpt_softc*)device_get_softc(dev);
259 if (mpt == NULL) {
260 device_printf(dev, "cannot allocate softc\n");
261 return (ENOMEM);
262 }
263 bzero(mpt, sizeof(struct mpt_softc));
264 switch ((pci_get_device(dev) & ~1)) {
265 case PCI_PRODUCT_LSI_FC909:
266 case PCI_PRODUCT_LSI_FC909A:
267 case PCI_PRODUCT_LSI_FC919:
268 case PCI_PRODUCT_LSI_FC929:
269 mpt->is_fc = 1;
270 break;
271 default:
272 break;
273 }
274 mpt->dev = dev;
275 mpt->unit = device_get_unit(dev);
276 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
277 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
278 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
279 mpt_set_options(mpt);
280 mpt->verbose = MPT_PRT_INFO;
281 mpt->verbose += (bootverbose != 0)? 1 : 0;
282
283 /* Make sure memory access decoders are enabled */
284 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
285 if ((cmd & PCIM_CMD_MEMEN) == 0) {
286 device_printf(dev, "Memory accesses disabled");
287 goto bad;
288 }
289
290 /*
291 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
292 */
293 cmd |=
294 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
295 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
296 pci_write_config(dev, PCIR_COMMAND, cmd, 2);
297
298 /*
299 * Make sure we've disabled the ROM.
300 */
301 data = pci_read_config(dev, PCIR_BIOS, 4);
302 data &= ~1;
303 pci_write_config(dev, PCIR_BIOS, data, 4);
304
305 /*
306 * Is this part a dual?
307 * If so, link with our partner (around yet)
308 */
309 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
310 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
311 mpt_link_peer(mpt);
312 }
313
314 /*
315 * Set up register access. PIO mode is required for
316 * certain reset operations.
317 */
318 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
319 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
320 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
321 if (mpt->pci_pio_reg == NULL) {
322 device_printf(dev, "unable to map registers in PIO mode\n");
323 goto bad;
324 }
325 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
326 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
327
328 /* Allocate kernel virtual memory for the 9x9's Mem0 region */
329 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
330 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
331 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
332 if (mpt->pci_reg == NULL) {
333 device_printf(dev, "Unable to memory map registers.\n");
334 device_printf(dev, "Falling back to PIO mode.\n");
335 mpt->pci_st = mpt->pci_pio_st;
336 mpt->pci_sh = mpt->pci_pio_sh;
337 } else {
338 mpt->pci_st = rman_get_bustag(mpt->pci_reg);
339 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
340 }
341
342 /* Get a handle to the interrupt */
343 iqd = 0;
344#if __FreeBSD_version < 500000
345 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1,
346 RF_ACTIVE | RF_SHAREABLE);
347#else
348 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
349 RF_ACTIVE | RF_SHAREABLE);
350#endif
351 if (mpt->pci_irq == NULL) {
352 device_printf(dev, "could not allocate interrupt\n");
353 goto bad;
354 }
355
356 MPT_LOCK_SETUP(mpt);
357
358 /* Disable interrupts at the part */
359 mpt_disable_ints(mpt);
360
361 /* Register the interrupt handler */
362 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr,
363 mpt, &mpt->ih)) {
364 device_printf(dev, "could not setup interrupt\n");
365 goto bad;
366 }
367
368 /* Allocate dma memory */
369/* XXX JGibbs -Should really be done based on IOCFacts. */
370 if (mpt_dma_mem_alloc(mpt)) {
371 device_printf(dev, "Could not allocate DMA memory\n");
372 goto bad;
373 }
374
375 /*
376 * Save the PCI config register values
377 *
378 * Hard resets are known to screw up the BAR for diagnostic
379 * memory accesses (Mem1).
380 *
381 * Using Mem1 is known to make the chip stop responding to
382 * configuration space transfers, so we need to save it now
383 */
384
385 mpt_read_config_regs(mpt);
386
387 /* Initialize the hardware */
388 if (mpt->disabled == 0) {
389 MPT_LOCK(mpt);
390 if (mpt_attach(mpt) != 0) {
391 MPT_UNLOCK(mpt);
392 goto bad;
393 }
394 }
395
396 return (0);
397
398bad:
399 mpt_dma_mem_free(mpt);
400 mpt_free_bus_resources(mpt);
401
402 /*
403 * but return zero to preserve unit numbering
404 */
405 return (0);
406}
407
408/*
409 * Free bus resources
410 */
411static void
412mpt_free_bus_resources(struct mpt_softc *mpt)
413{
414 if (mpt->ih) {
415 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
416 mpt->ih = 0;
417 }
418
419 if (mpt->pci_irq) {
420 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq);
421 mpt->pci_irq = 0;
422 }
423
424 if (mpt->pci_pio_reg) {
425 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
426 mpt->pci_pio_reg);
427 mpt->pci_pio_reg = 0;
428 }
429 if (mpt->pci_reg) {
430 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
431 mpt->pci_reg);
432 mpt->pci_reg = 0;
433 }
434 MPT_LOCK_DESTROY(mpt);
435}
436
437
438/*
439 * Disconnect ourselves from the system.
440 */
441static int
442mpt_pci_detach(device_t dev)
443{
444 struct mpt_softc *mpt;
445
446 mpt = (struct mpt_softc*)device_get_softc(dev);
447 mpt_prt(mpt, "mpt_detach\n");
448
449 if (mpt) {
450 mpt_disable_ints(mpt);
451 mpt_detach(mpt);
452 mpt_reset(mpt, /*reinit*/FALSE);
453 mpt_dma_mem_free(mpt);
454 mpt_free_bus_resources(mpt);
455 if (mpt->raid_volumes != NULL
456 && mpt->ioc_page2 != NULL) {
457 int i;
458
459 for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
460 struct mpt_raid_volume *mpt_vol;
461
462 mpt_vol = &mpt->raid_volumes[i];
463 if (mpt_vol->config_page)
464 free(mpt_vol->config_page, M_DEVBUF);
465 }
466 }
467 if (mpt->ioc_page2 != NULL)
468 free(mpt->ioc_page2, M_DEVBUF);
469 if (mpt->ioc_page3 != NULL)
470 free(mpt->ioc_page3, M_DEVBUF);
471 if (mpt->raid_volumes != NULL)
472 free(mpt->raid_volumes, M_DEVBUF);
473 if (mpt->raid_disks != NULL)
474 free(mpt->raid_disks, M_DEVBUF);
475 if (mpt->eh != NULL)
476 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh);
477 }
478 return(0);
479}
480
481
482/*
483 * Disable the hardware
484 * XXX - Called too early by New Bus!!! ???
485 */
486static int
487mpt_pci_shutdown(device_t dev)
488{
489 struct mpt_softc *mpt;
490
491 mpt = (struct mpt_softc *)device_get_softc(dev);
492 if (mpt)
493 return (mpt_shutdown(mpt));
494 return(0);
495}
496
497static int
498mpt_dma_mem_alloc(struct mpt_softc *mpt)
499{
500 int i, error;
501 uint8_t *vptr;
502 uint32_t pptr, end;
503 size_t len;
504 struct mpt_map_info mi;
505 device_t dev = mpt->dev;
506
507 /* Check if we alreay have allocated the reply memory */
508 if (mpt->reply_phys != 0) {
509 return 0;
510 }
511
512 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
513#ifdef RELENG_4
514 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
515 if (mpt->request_pool == NULL) {
516 device_printf(dev, "cannot allocate request pool\n");
517 return (1);
518 }
519 bzero(mpt->request_pool, len);
520#else
521 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
522 if (mpt->request_pool == NULL) {
523 device_printf(dev, "cannot allocate request pool\n");
524 return (1);
525 }
526#endif
527
528 /*
529 * Create a parent dma tag for this device
530 *
531 * Align at byte boundaries, limit to 32-bit addressing
532 * (The chip supports 64-bit addressing, but this driver doesn't)
533 */
534 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1,
535 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR_32BIT,
536 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
537 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
538 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
539 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
540 &mpt->parent_dmat) != 0) {
541 device_printf(dev, "cannot create parent dma tag\n");
542 return (1);
543 }
544
545 /* Create a child tag for reply buffers */
546 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
547 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
548 NULL, NULL, PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
549 &mpt->reply_dmat) != 0) {
550 device_printf(dev, "cannot create a dma tag for replies\n");
551 return (1);
552 }
553
554 /* Allocate some DMA accessable memory for replies */
555 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
556 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
557 device_printf(dev, "cannot allocate %lu bytes of reply memory\n",
558 (u_long)PAGE_SIZE);
559 return (1);
560 }
561
562 mi.mpt = mpt;
563 mi.error = 0;
564
565 /* Load and lock it into "bus space" */
566 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
567 PAGE_SIZE, mpt_map_rquest, &mi, 0);
568
569 if (mi.error) {
570 device_printf(dev,
571 "error %d loading dma map for DMA reply queue\n", mi.error);
572 return (1);
573 }
574 mpt->reply_phys = mi.phys;
575
576 /* Create a child tag for data buffers */
577 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
578 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
579 NULL, NULL, MAXBSIZE, MPT_SGL_MAX, BUS_SPACE_MAXSIZE_32BIT, 0,
580 &mpt->buffer_dmat) != 0) {
581 device_printf(dev,
582 "cannot create a dma tag for data buffers\n");
583 return (1);
584 }
585
586 /* Create a child tag for request buffers */
587 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
588 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
589 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
590 &mpt->request_dmat) != 0) {
591 device_printf(dev, "cannot create a dma tag for requests\n");
592 return (1);
593 }
594
595 /* Allocate some DMA accessable memory for requests */
596 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
597 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
598 device_printf(dev,
599 "cannot allocate %d bytes of request memory\n",
600 MPT_REQ_MEM_SIZE(mpt));
601 return (1);
602 }
603
604 mi.mpt = mpt;
605 mi.error = 0;
606
607 /* Load and lock it into "bus space" */
608 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
609 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
610
611 if (mi.error) {
612 device_printf(dev,
613 "error %d loading dma map for DMA request queue\n",
614 mi.error);
615 return (1);
616 }
617 mpt->request_phys = mi.phys;
618
619 i = 0;
620 pptr = mpt->request_phys;
621 vptr = mpt->request;
622 end = pptr + MPT_REQ_MEM_SIZE(mpt);
623 while(pptr < end) {
624 request_t *req = &mpt->request_pool[i];
625 req->index = i++;
626
627 /* Store location of Request Data */
628 req->req_pbuf = pptr;
629 req->req_vbuf = vptr;
630
631 pptr += MPT_REQUEST_AREA;
632 vptr += MPT_REQUEST_AREA;
633
634 req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
635 req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
636
637 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
638 if (error) {
639 device_printf(dev,
640 "error %d creating per-cmd DMA maps\n", error);
641 return (1);
642 }
643 }
644 return (0);
645}
646
647
648
649/* Deallocate memory that was allocated by mpt_dma_mem_alloc
650 */
651static void
652mpt_dma_mem_free(struct mpt_softc *mpt)
653{
654 int i;
655
656 /* Make sure we aren't double destroying */
657 if (mpt->reply_dmat == 0) {
658 if (mpt->verbose >= MPT_PRT_DEBUG)
659 device_printf(mpt->dev,"Already released dma memory\n");
660 return;
661 }
662
663 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
664 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
665 }
666 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
667 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
668 bus_dma_tag_destroy(mpt->request_dmat);
669 bus_dma_tag_destroy(mpt->buffer_dmat);
670 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
671 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
672 bus_dma_tag_destroy(mpt->reply_dmat);
673 bus_dma_tag_destroy(mpt->parent_dmat);
674 mpt->reply_dmat = 0;
675 free(mpt->request_pool, M_DEVBUF);
676 mpt->request_pool = 0;
677
678}
679
680
681
682/* Reads modifiable (via PCI transactions) config registers */
683static void
684mpt_read_config_regs(struct mpt_softc *mpt)
685{
686 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
687 mpt->pci_cfg.LatencyTimer_LineSize =
688 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
689 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
690 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
691 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
692 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
693 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
694 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
695 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
696 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
697}
698
699/* Sets modifiable config registers */
700void
701mpt_set_config_regs(struct mpt_softc *mpt)
702{
703 uint32_t val;
704
705#define MPT_CHECK(reg, offset, size) \
706 val = pci_read_config(mpt->dev, offset, size); \
707 if (mpt->pci_cfg.reg != val) { \
708 mpt_prt(mpt, \
709 "Restoring " #reg " to 0x%X from 0x%X\n", \
710 mpt->pci_cfg.reg, val); \
711 }
712
713 if (mpt->verbose >= MPT_PRT_DEBUG) {
714 MPT_CHECK(Command, PCIR_COMMAND, 2);
715 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
716 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
717 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
718 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
719 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
720 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
721 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
722 MPT_CHECK(IntLine, PCIR_INTLINE, 1);
723 MPT_CHECK(PMCSR, 0x44, 4);
724 }
725#undef MPT_CHECK
726
727 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
728 pci_write_config(mpt->dev, PCIR_CACHELNSZ,
729 mpt->pci_cfg.LatencyTimer_LineSize, 2);
730 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
731 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
732 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
733 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
734 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
735 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
736 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
737 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
738}
739
740static void
741mpt_pci_intr(void *arg)
742{
743 struct mpt_softc *mpt;
744
745 mpt = (struct mpt_softc *)arg;
746 MPT_LOCK(mpt);
747 mpt_intr(mpt);
748 MPT_UNLOCK(mpt);
749}