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 155521 2006-02-11 01:35:29Z mjacob $");
67
68#include <dev/mpt/mpt.h>
69#include <dev/mpt/mpt_cam.h>
70#include <dev/mpt/mpt_raid.h>
71
72
73#ifndef PCI_VENDOR_LSI
74#define PCI_VENDOR_LSI 0x1000
75#endif
76
77#ifndef PCI_PRODUCT_LSI_FC909
78#define PCI_PRODUCT_LSI_FC909 0x0620
79#endif
80
81#ifndef PCI_PRODUCT_LSI_FC909A
82#define PCI_PRODUCT_LSI_FC909A 0x0621
83#endif
84
85#ifndef PCI_PRODUCT_LSI_FC919
86#define PCI_PRODUCT_LSI_FC919 0x0624
87#endif
88
89#ifndef PCI_PRODUCT_LSI_FC929
90#define PCI_PRODUCT_LSI_FC929 0x0622
91#endif
92
93#ifndef PCI_PRODUCT_LSI_FC929X
94#define PCI_PRODUCT_LSI_FC929X 0x0626
95#endif
96
97#ifndef PCI_PRODUCT_LSI_1030
98#define PCI_PRODUCT_LSI_1030 0x0030
99#endif
100
101#ifndef PCI_PRODUCT_LSI_SAS1064
102#define PCI_PRODUCT_LSI_SAS1064 0x0050
103#endif
104
105#ifndef PCI_PRODUCT_LSI_SAS1064A
106#define PCI_PRODUCT_LSI_SAS1064A 0x005C
107#endif
108
109#ifndef PCI_PRODUCT_LSI_SAS1064E
110#define PCI_PRODUCT_LSI_SAS1064E 0x0056
111#endif
112
113#ifndef PCI_PRODUCT_LSI_SAS1066
114#define PCI_PRODUCT_LSI_SAS1066 0x005E
115#endif
116
117#ifndef PCI_PRODUCT_LSI_SAS1066E
118#define PCI_PRODUCT_LSI_SAS1066E 0x005A
119#endif
120
121#ifndef PCI_PRODUCT_LSI_SAS1068
122#define PCI_PRODUCT_LSI_SAS1068 0x0054
123#endif
124
125#ifndef PCI_PRODUCT_LSI_SAS1068E
126#define PCI_PRODUCT_LSI_SAS1068E 0x0058
127#endif
128
129#ifndef PCI_PRODUCT_LSI_SAS1078
130#define PCI_PRODUCT_LSI_SAS1078 0x0060
131#endif
132
133#ifndef PCIM_CMD_SERRESPEN
134#define PCIM_CMD_SERRESPEN 0x0100
135#endif
136
137
138#define MPT_IO_BAR 0
139#define MPT_MEM_BAR 1
140
141static int mpt_pci_probe(device_t);
142static int mpt_pci_attach(device_t);
143static void mpt_free_bus_resources(struct mpt_softc *mpt);
144static int mpt_pci_detach(device_t);
145static int mpt_pci_shutdown(device_t);
146static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
147static void mpt_dma_mem_free(struct mpt_softc *mpt);
148static void mpt_read_config_regs(struct mpt_softc *mpt);
149static void mpt_pci_intr(void *);
150
151static device_method_t mpt_methods[] = {
152 /* Device interface */
153 DEVMETHOD(device_probe, mpt_pci_probe),
154 DEVMETHOD(device_attach, mpt_pci_attach),
155 DEVMETHOD(device_detach, mpt_pci_detach),
156 DEVMETHOD(device_shutdown, mpt_pci_shutdown),
157 { 0, 0 }
158};
159
160static driver_t mpt_driver = {
161 "mpt", mpt_methods, sizeof(struct mpt_softc)
162};
163static devclass_t mpt_devclass;
164DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
165MODULE_VERSION(mpt, 1);
166
167static int
168mpt_pci_probe(device_t dev)
169{
170 char *desc;
171
172 if (pci_get_vendor(dev) != PCI_VENDOR_LSI)
173 return (ENXIO);
174
175 switch ((pci_get_device(dev) & ~1)) {
176 case PCI_PRODUCT_LSI_FC909:
177 desc = "LSILogic FC909 FC Adapter";
178 break;
179 case PCI_PRODUCT_LSI_FC909A:
180 desc = "LSILogic FC909A FC Adapter";
181 break;
182 case PCI_PRODUCT_LSI_FC919:
183 desc = "LSILogic FC919 FC Adapter";
184 break;
185 case PCI_PRODUCT_LSI_FC929:
186 desc = "LSILogic FC929 FC Adapter";
187 break;
188 case PCI_PRODUCT_LSI_FC929X:
189 desc = "LSILogic FC929X FC Adapter";
190 break;
191 case PCI_PRODUCT_LSI_1030:
192 desc = "LSILogic 1030 Ultra4 Adapter";
193 break;
194 case PCI_PRODUCT_LSI_SAS1064:
195 case PCI_PRODUCT_LSI_SAS1064A:
196 case PCI_PRODUCT_LSI_SAS1064E:
197 case PCI_PRODUCT_LSI_SAS1066:
198 case PCI_PRODUCT_LSI_SAS1066E:
199 case PCI_PRODUCT_LSI_SAS1068:
200 case PCI_PRODUCT_LSI_SAS1068E:
201 case PCI_PRODUCT_LSI_SAS1078:
202 desc = "LSILogic SAS Adapter";
203 break;
204 default:
205 return (ENXIO);
206 }
207
208 device_set_desc(dev, desc);
209 return (0);
210}
211
212#ifdef RELENG_4
213static void
214mpt_set_options(struct mpt_softc *mpt)
215{
216 int bitmap;
217
218 bitmap = 0;
219 if (getenv_int("mpt_disable", &bitmap)) {
220 if (bitmap & (1 << mpt->unit)) {
221 mpt->disabled = 1;
222 }
223 }
224
225 bitmap = 0;
226 if (getenv_int("mpt_debug", &bitmap)) {
227 if (bitmap & (1 << mpt->unit)) {
228 mpt->verbose = MPT_PRT_DEBUG;
229 }
230 }
231
232}
233#else
234static void
235mpt_set_options(struct mpt_softc *mpt)
236{
237 int tval;
238
239 tval = 0;
240 if (resource_int_value(device_get_name(mpt->dev),
241 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
242 mpt->disabled = 1;
243 }
244 tval = 0;
245 if (resource_int_value(device_get_name(mpt->dev),
246 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
247 mpt->verbose += tval;
248 }
249}
250#endif
251
252
253static void
254mpt_link_peer(struct mpt_softc *mpt)
255{
256 struct mpt_softc *mpt2;
257
258 if (mpt->unit == 0)
259 return;
260
261 /*
262 * XXX: depends on probe order
263 */
264 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
265
266 if (mpt2 == NULL) {
267 return;
268 }
269 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
270 return;
271 }
272 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
273 return;
274 }
275 mpt->mpt2 = mpt2;
276 mpt2->mpt2 = mpt;
277 if (mpt->verbose >= MPT_PRT_DEBUG) {
278 mpt_prt(mpt, "linking with peer (mpt%d)\n",
279 device_get_unit(mpt2->dev));
280 }
281}
282
283
284static int
285mpt_pci_attach(device_t dev)
286{
287 struct mpt_softc *mpt;
288 int iqd;
289 uint32_t data, cmd;
290
291 /* Allocate the softc structure */
292 mpt = (struct mpt_softc*)device_get_softc(dev);
293 if (mpt == NULL) {
294 device_printf(dev, "cannot allocate softc\n");
295 return (ENOMEM);
296 }
297 bzero(mpt, sizeof(struct mpt_softc));
298 switch ((pci_get_device(dev) & ~1)) {
299 case PCI_PRODUCT_LSI_FC909:
300 case PCI_PRODUCT_LSI_FC909A:
301 case PCI_PRODUCT_LSI_FC919:
302 case PCI_PRODUCT_LSI_FC929:
303 mpt->is_fc = 1;
304 break;
305 case PCI_PRODUCT_LSI_SAS1064:
306 case PCI_PRODUCT_LSI_SAS1064A:
307 case PCI_PRODUCT_LSI_SAS1064E:
308 case PCI_PRODUCT_LSI_SAS1066:
309 case PCI_PRODUCT_LSI_SAS1066E:
310 case PCI_PRODUCT_LSI_SAS1068:
311 case PCI_PRODUCT_LSI_SAS1068E:
312 case PCI_PRODUCT_LSI_SAS1078:
313 mpt->is_sas = 1;
314 break;
315 default:
316 break;
317 }
318 mpt->dev = dev;
319 mpt->unit = device_get_unit(dev);
320 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
321 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
322 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
323 mpt->verbose = MPT_PRT_NONE;
324 mpt_set_options(mpt);
325 if (mpt->verbose == MPT_PRT_NONE) {
326 mpt->verbose = MPT_PRT_WARN;
327 /* Print INFO level (if any) if bootverbose is set */
328 mpt->verbose += (bootverbose != 0)? 1 : 0;
329 }
330 /* Make sure memory access decoders are enabled */
331 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
332 if ((cmd & PCIM_CMD_MEMEN) == 0) {
333 device_printf(dev, "Memory accesses disabled");
334 goto bad;
335 }
336
337 /*
338 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
339 */
340 cmd |=
341 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
342 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
343 pci_write_config(dev, PCIR_COMMAND, cmd, 2);
344
345 /*
346 * Make sure we've disabled the ROM.
347 */
348 data = pci_read_config(dev, PCIR_BIOS, 4);
349 data &= ~1;
350 pci_write_config(dev, PCIR_BIOS, data, 4);
351
352 /*
353 * Is this part a dual?
354 * If so, link with our partner (around yet)
355 */
356 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
357 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
358 mpt_link_peer(mpt);
359 }
360
361 /*
362 * Set up register access. PIO mode is required for
363 * certain reset operations (but must be disabled for
364 * some cards otherwise).
365 */
366 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
367 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
368 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
369 if (mpt->pci_pio_reg == NULL) {
370 device_printf(dev, "unable to map registers in PIO mode\n");
371 goto bad;
372 }
373 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
374 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
375
376 /* Allocate kernel virtual memory for the 9x9's Mem0 region */
377 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
378 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
379 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
380 if (mpt->pci_reg == NULL) {
381 device_printf(dev, "Unable to memory map registers.\n");
382 if (mpt->is_sas) {
383 device_printf(dev, "Giving Up.\n");
384 goto bad;
385 }
386 device_printf(dev, "Falling back to PIO mode.\n");
387 mpt->pci_st = mpt->pci_pio_st;
388 mpt->pci_sh = mpt->pci_pio_sh;
389 } else {
390 mpt->pci_st = rman_get_bustag(mpt->pci_reg);
391 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
392 }
393
394 /* Get a handle to the interrupt */
395 iqd = 0;
396#if __FreeBSD_version < 500000
397 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1,
398 RF_ACTIVE | RF_SHAREABLE);
399#else
400 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
401 RF_ACTIVE | RF_SHAREABLE);
402#endif
403 if (mpt->pci_irq == NULL) {
404 device_printf(dev, "could not allocate interrupt\n");
405 goto bad;
406 }
407
408 MPT_LOCK_SETUP(mpt);
409
410 /* Disable interrupts at the part */
411 mpt_disable_ints(mpt);
412
413 /* Register the interrupt handler */
414 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr,
415 mpt, &mpt->ih)) {
416 device_printf(dev, "could not setup interrupt\n");
417 goto bad;
418 }
419
420 /* Allocate dma memory */
421/* XXX JGibbs -Should really be done based on IOCFacts. */
422 if (mpt_dma_mem_alloc(mpt)) {
423 device_printf(dev, "Could not allocate DMA memory\n");
424 goto bad;
425 }
426
427 /*
428 * Save the PCI config register values
429 *
430 * Hard resets are known to screw up the BAR for diagnostic
431 * memory accesses (Mem1).
432 *
433 * Using Mem1 is known to make the chip stop responding to
434 * configuration space transfers, so we need to save it now
435 */
436
437 mpt_read_config_regs(mpt);
438
439 /*
440 * Disable PIO until we need it
441 */
442 pci_disable_io(dev, SYS_RES_IOPORT);
443
444 /* Initialize the hardware */
445 if (mpt->disabled == 0) {
446
447 MPT_LOCK(mpt);
448 if (mpt_attach(mpt) != 0) {
449 MPT_UNLOCK(mpt);
450 goto bad;
451 }
452 }
453
454 return (0);
455
456bad:
457 mpt_dma_mem_free(mpt);
458 mpt_free_bus_resources(mpt);
459
460 /*
461 * but return zero to preserve unit numbering
462 */
463 return (0);
464}
465
466/*
467 * Free bus resources
468 */
469static void
470mpt_free_bus_resources(struct mpt_softc *mpt)
471{
472 if (mpt->ih) {
473 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
474 mpt->ih = 0;
475 }
476
477 if (mpt->pci_irq) {
478 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq);
479 mpt->pci_irq = 0;
480 }
481
482 if (mpt->pci_pio_reg) {
483 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
484 mpt->pci_pio_reg);
485 mpt->pci_pio_reg = 0;
486 }
487 if (mpt->pci_reg) {
488 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
489 mpt->pci_reg);
490 mpt->pci_reg = 0;
491 }
492 MPT_LOCK_DESTROY(mpt);
493}
494
495
496/*
497 * Disconnect ourselves from the system.
498 */
499static int
500mpt_pci_detach(device_t dev)
501{
502 struct mpt_softc *mpt;
503
504 mpt = (struct mpt_softc*)device_get_softc(dev);
505 mpt_prt(mpt, "mpt_detach\n");
506
507 if (mpt) {
508 mpt_disable_ints(mpt);
509 mpt_detach(mpt);
510 mpt_reset(mpt, /*reinit*/FALSE);
511 mpt_dma_mem_free(mpt);
512 mpt_free_bus_resources(mpt);
513 if (mpt->raid_volumes != NULL
514 && mpt->ioc_page2 != NULL) {
515 int i;
516
517 for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
518 struct mpt_raid_volume *mpt_vol;
519
520 mpt_vol = &mpt->raid_volumes[i];
521 if (mpt_vol->config_page)
522 free(mpt_vol->config_page, M_DEVBUF);
523 }
524 }
525 if (mpt->ioc_page2 != NULL)
526 free(mpt->ioc_page2, M_DEVBUF);
527 if (mpt->ioc_page3 != NULL)
528 free(mpt->ioc_page3, M_DEVBUF);
529 if (mpt->raid_volumes != NULL)
530 free(mpt->raid_volumes, M_DEVBUF);
531 if (mpt->raid_disks != NULL)
532 free(mpt->raid_disks, M_DEVBUF);
533 if (mpt->eh != NULL)
534 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh);
535 }
536 return(0);
537}
538
539
540/*
541 * Disable the hardware
542 * XXX - Called too early by New Bus!!! ???
543 */
544static int
545mpt_pci_shutdown(device_t dev)
546{
547 struct mpt_softc *mpt;
548
549 mpt = (struct mpt_softc *)device_get_softc(dev);
550 if (mpt)
551 return (mpt_shutdown(mpt));
552 return(0);
553}
554
555static int
556mpt_dma_mem_alloc(struct mpt_softc *mpt)
557{
558 int i, error, nsegs;
559 uint8_t *vptr;
560 uint32_t pptr, end;
561 size_t len;
562 struct mpt_map_info mi;
563 device_t dev = mpt->dev;
564
565 /* Check if we alreay have allocated the reply memory */
566 if (mpt->reply_phys != 0) {
567 return 0;
568 }
569
570 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
571#ifdef RELENG_4
572 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
573 if (mpt->request_pool == NULL) {
574 device_printf(dev, "cannot allocate request pool\n");
575 return (1);
576 }
577 bzero(mpt->request_pool, len);
578#else
579 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
580 if (mpt->request_pool == NULL) {
581 device_printf(dev, "cannot allocate request pool\n");
582 return (1);
583 }
584#endif
585
586 /*
587 * Create a parent dma tag for this device.
588 *
589 * Align at byte boundaries, limit to 32-bit addressing for
590 * request/reply queues.
591 */
592 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1,
593 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR,
594 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
595 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
596 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
597 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
598 &mpt->parent_dmat) != 0) {
599 device_printf(dev, "cannot create parent dma tag\n");
600 return (1);
601 }
602
603 /* Create a child tag for reply buffers */
604 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 2 * PAGE_SIZE,
605 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
606 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
607 &mpt->reply_dmat) != 0) {
608 device_printf(dev, "cannot create a dma tag for replies\n");
609 return (1);
610 }
611
612 /* Allocate some DMA accessable memory for replies */
613 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
614 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
615 device_printf(dev,
616 "cannot allocate %lu bytes of reply memory\n",
617 (u_long) (2 * PAGE_SIZE));
618 return (1);
619 }
620
621 mi.mpt = mpt;
622 mi.error = 0;
623
624 /* Load and lock it into "bus space" */
625 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
626 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0);
627
628 if (mi.error) {
629 device_printf(dev,
630 "error %d loading dma map for DMA reply queue\n", mi.error);
631 return (1);
632 }
633 mpt->reply_phys = mi.phys;
634
635 /* Create a child tag for data buffers */
636
637 /*
638 * XXX: we should say that nsegs is 'unrestricted, but that
639 * XXX: tickles a horrible bug in the busdma code. Instead,
640 * XXX: we'll derive a reasonable segment limit from MAXPHYS
641 */
642 nsegs = (MAXPHYS / PAGE_SIZE) + 1;
643 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
644 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
645 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0,
646 &mpt->buffer_dmat) != 0) {
647 device_printf(dev,
648 "cannot create a dma tag for data buffers\n");
649 return (1);
650 }
651
652 /* Create a child tag for request buffers */
653 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
654 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
655 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
656 &mpt->request_dmat) != 0) {
657 device_printf(dev, "cannot create a dma tag for requests\n");
658 return (1);
659 }
660
661 /* Allocate some DMA accessable memory for requests */
662 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
663 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
664 device_printf(dev,
665 "cannot allocate %d bytes of request memory\n",
666 MPT_REQ_MEM_SIZE(mpt));
667 return (1);
668 }
669
670 mi.mpt = mpt;
671 mi.error = 0;
672
673 /* Load and lock it into "bus space" */
674 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
675 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
676
677 if (mi.error) {
678 device_printf(dev,
679 "error %d loading dma map for DMA request queue\n",
680 mi.error);
681 return (1);
682 }
683 mpt->request_phys = mi.phys;
684
685 i = 0;
686 pptr = mpt->request_phys;
687 vptr = mpt->request;
688 end = pptr + MPT_REQ_MEM_SIZE(mpt);
689 while(pptr < end) {
690 request_t *req = &mpt->request_pool[i];
691 req->index = i++;
692
693 /* Store location of Request Data */
694 req->req_pbuf = pptr;
695 req->req_vbuf = vptr;
696
697 pptr += MPT_REQUEST_AREA;
698 vptr += MPT_REQUEST_AREA;
699
700 req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
701 req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
702
703 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
704 if (error) {
705 device_printf(dev,
706 "error %d creating per-cmd DMA maps\n", error);
707 return (1);
708 }
709 }
710 return (0);
711}
712
713
714
715/* Deallocate memory that was allocated by mpt_dma_mem_alloc
716 */
717static void
718mpt_dma_mem_free(struct mpt_softc *mpt)
719{
720 int i;
721
722 /* Make sure we aren't double destroying */
723 if (mpt->reply_dmat == 0) {
724 if (mpt->verbose >= MPT_PRT_DEBUG)
725 device_printf(mpt->dev,"Already released dma memory\n");
726 return;
727 }
728
729 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
730 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
731 }
732 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
733 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
734 bus_dma_tag_destroy(mpt->request_dmat);
735 bus_dma_tag_destroy(mpt->buffer_dmat);
736 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
737 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
738 bus_dma_tag_destroy(mpt->reply_dmat);
739 bus_dma_tag_destroy(mpt->parent_dmat);
740 mpt->reply_dmat = 0;
741 free(mpt->request_pool, M_DEVBUF);
742 mpt->request_pool = 0;
743
744}
745
746
747
748/* Reads modifiable (via PCI transactions) config registers */
749static void
750mpt_read_config_regs(struct mpt_softc *mpt)
751{
752 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
753 mpt->pci_cfg.LatencyTimer_LineSize =
754 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
755 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
756 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
757 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
758 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
759 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
760 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
761 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
762 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
763}
764
765/* Sets modifiable config registers */
766void
767mpt_set_config_regs(struct mpt_softc *mpt)
768{
769 uint32_t val;
770
771#define MPT_CHECK(reg, offset, size) \
772 val = pci_read_config(mpt->dev, offset, size); \
773 if (mpt->pci_cfg.reg != val) { \
774 mpt_prt(mpt, \
775 "Restoring " #reg " to 0x%X from 0x%X\n", \
776 mpt->pci_cfg.reg, val); \
777 }
778
779 if (mpt->verbose >= MPT_PRT_DEBUG) {
780 MPT_CHECK(Command, PCIR_COMMAND, 2);
781 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
782 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
783 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
784 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
785 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
786 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
787 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
788 MPT_CHECK(IntLine, PCIR_INTLINE, 1);
789 MPT_CHECK(PMCSR, 0x44, 4);
790 }
791#undef MPT_CHECK
792
793 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
794 pci_write_config(mpt->dev, PCIR_CACHELNSZ,
795 mpt->pci_cfg.LatencyTimer_LineSize, 2);
796 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
797 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
798 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
799 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
800 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
801 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
802 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
803 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
804}
805
806static void
807mpt_pci_intr(void *arg)
808{
809 struct mpt_softc *mpt;
810
811 mpt = (struct mpt_softc *)arg;
812 MPT_LOCK(mpt);
813 mpt_intr(mpt);
814 MPT_UNLOCK(mpt);
815}
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 155521 2006-02-11 01:35:29Z mjacob $");
67
68#include <dev/mpt/mpt.h>
69#include <dev/mpt/mpt_cam.h>
70#include <dev/mpt/mpt_raid.h>
71
72
73#ifndef PCI_VENDOR_LSI
74#define PCI_VENDOR_LSI 0x1000
75#endif
76
77#ifndef PCI_PRODUCT_LSI_FC909
78#define PCI_PRODUCT_LSI_FC909 0x0620
79#endif
80
81#ifndef PCI_PRODUCT_LSI_FC909A
82#define PCI_PRODUCT_LSI_FC909A 0x0621
83#endif
84
85#ifndef PCI_PRODUCT_LSI_FC919
86#define PCI_PRODUCT_LSI_FC919 0x0624
87#endif
88
89#ifndef PCI_PRODUCT_LSI_FC929
90#define PCI_PRODUCT_LSI_FC929 0x0622
91#endif
92
93#ifndef PCI_PRODUCT_LSI_FC929X
94#define PCI_PRODUCT_LSI_FC929X 0x0626
95#endif
96
97#ifndef PCI_PRODUCT_LSI_1030
98#define PCI_PRODUCT_LSI_1030 0x0030
99#endif
100
101#ifndef PCI_PRODUCT_LSI_SAS1064
102#define PCI_PRODUCT_LSI_SAS1064 0x0050
103#endif
104
105#ifndef PCI_PRODUCT_LSI_SAS1064A
106#define PCI_PRODUCT_LSI_SAS1064A 0x005C
107#endif
108
109#ifndef PCI_PRODUCT_LSI_SAS1064E
110#define PCI_PRODUCT_LSI_SAS1064E 0x0056
111#endif
112
113#ifndef PCI_PRODUCT_LSI_SAS1066
114#define PCI_PRODUCT_LSI_SAS1066 0x005E
115#endif
116
117#ifndef PCI_PRODUCT_LSI_SAS1066E
118#define PCI_PRODUCT_LSI_SAS1066E 0x005A
119#endif
120
121#ifndef PCI_PRODUCT_LSI_SAS1068
122#define PCI_PRODUCT_LSI_SAS1068 0x0054
123#endif
124
125#ifndef PCI_PRODUCT_LSI_SAS1068E
126#define PCI_PRODUCT_LSI_SAS1068E 0x0058
127#endif
128
129#ifndef PCI_PRODUCT_LSI_SAS1078
130#define PCI_PRODUCT_LSI_SAS1078 0x0060
131#endif
132
133#ifndef PCIM_CMD_SERRESPEN
134#define PCIM_CMD_SERRESPEN 0x0100
135#endif
136
137
138#define MPT_IO_BAR 0
139#define MPT_MEM_BAR 1
140
141static int mpt_pci_probe(device_t);
142static int mpt_pci_attach(device_t);
143static void mpt_free_bus_resources(struct mpt_softc *mpt);
144static int mpt_pci_detach(device_t);
145static int mpt_pci_shutdown(device_t);
146static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
147static void mpt_dma_mem_free(struct mpt_softc *mpt);
148static void mpt_read_config_regs(struct mpt_softc *mpt);
149static void mpt_pci_intr(void *);
150
151static device_method_t mpt_methods[] = {
152 /* Device interface */
153 DEVMETHOD(device_probe, mpt_pci_probe),
154 DEVMETHOD(device_attach, mpt_pci_attach),
155 DEVMETHOD(device_detach, mpt_pci_detach),
156 DEVMETHOD(device_shutdown, mpt_pci_shutdown),
157 { 0, 0 }
158};
159
160static driver_t mpt_driver = {
161 "mpt", mpt_methods, sizeof(struct mpt_softc)
162};
163static devclass_t mpt_devclass;
164DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
165MODULE_VERSION(mpt, 1);
166
167static int
168mpt_pci_probe(device_t dev)
169{
170 char *desc;
171
172 if (pci_get_vendor(dev) != PCI_VENDOR_LSI)
173 return (ENXIO);
174
175 switch ((pci_get_device(dev) & ~1)) {
176 case PCI_PRODUCT_LSI_FC909:
177 desc = "LSILogic FC909 FC Adapter";
178 break;
179 case PCI_PRODUCT_LSI_FC909A:
180 desc = "LSILogic FC909A FC Adapter";
181 break;
182 case PCI_PRODUCT_LSI_FC919:
183 desc = "LSILogic FC919 FC Adapter";
184 break;
185 case PCI_PRODUCT_LSI_FC929:
186 desc = "LSILogic FC929 FC Adapter";
187 break;
188 case PCI_PRODUCT_LSI_FC929X:
189 desc = "LSILogic FC929X FC Adapter";
190 break;
191 case PCI_PRODUCT_LSI_1030:
192 desc = "LSILogic 1030 Ultra4 Adapter";
193 break;
194 case PCI_PRODUCT_LSI_SAS1064:
195 case PCI_PRODUCT_LSI_SAS1064A:
196 case PCI_PRODUCT_LSI_SAS1064E:
197 case PCI_PRODUCT_LSI_SAS1066:
198 case PCI_PRODUCT_LSI_SAS1066E:
199 case PCI_PRODUCT_LSI_SAS1068:
200 case PCI_PRODUCT_LSI_SAS1068E:
201 case PCI_PRODUCT_LSI_SAS1078:
202 desc = "LSILogic SAS Adapter";
203 break;
204 default:
205 return (ENXIO);
206 }
207
208 device_set_desc(dev, desc);
209 return (0);
210}
211
212#ifdef RELENG_4
213static void
214mpt_set_options(struct mpt_softc *mpt)
215{
216 int bitmap;
217
218 bitmap = 0;
219 if (getenv_int("mpt_disable", &bitmap)) {
220 if (bitmap & (1 << mpt->unit)) {
221 mpt->disabled = 1;
222 }
223 }
224
225 bitmap = 0;
226 if (getenv_int("mpt_debug", &bitmap)) {
227 if (bitmap & (1 << mpt->unit)) {
228 mpt->verbose = MPT_PRT_DEBUG;
229 }
230 }
231
232}
233#else
234static void
235mpt_set_options(struct mpt_softc *mpt)
236{
237 int tval;
238
239 tval = 0;
240 if (resource_int_value(device_get_name(mpt->dev),
241 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
242 mpt->disabled = 1;
243 }
244 tval = 0;
245 if (resource_int_value(device_get_name(mpt->dev),
246 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
247 mpt->verbose += tval;
248 }
249}
250#endif
251
252
253static void
254mpt_link_peer(struct mpt_softc *mpt)
255{
256 struct mpt_softc *mpt2;
257
258 if (mpt->unit == 0)
259 return;
260
261 /*
262 * XXX: depends on probe order
263 */
264 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
265
266 if (mpt2 == NULL) {
267 return;
268 }
269 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
270 return;
271 }
272 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
273 return;
274 }
275 mpt->mpt2 = mpt2;
276 mpt2->mpt2 = mpt;
277 if (mpt->verbose >= MPT_PRT_DEBUG) {
278 mpt_prt(mpt, "linking with peer (mpt%d)\n",
279 device_get_unit(mpt2->dev));
280 }
281}
282
283
284static int
285mpt_pci_attach(device_t dev)
286{
287 struct mpt_softc *mpt;
288 int iqd;
289 uint32_t data, cmd;
290
291 /* Allocate the softc structure */
292 mpt = (struct mpt_softc*)device_get_softc(dev);
293 if (mpt == NULL) {
294 device_printf(dev, "cannot allocate softc\n");
295 return (ENOMEM);
296 }
297 bzero(mpt, sizeof(struct mpt_softc));
298 switch ((pci_get_device(dev) & ~1)) {
299 case PCI_PRODUCT_LSI_FC909:
300 case PCI_PRODUCT_LSI_FC909A:
301 case PCI_PRODUCT_LSI_FC919:
302 case PCI_PRODUCT_LSI_FC929:
303 mpt->is_fc = 1;
304 break;
305 case PCI_PRODUCT_LSI_SAS1064:
306 case PCI_PRODUCT_LSI_SAS1064A:
307 case PCI_PRODUCT_LSI_SAS1064E:
308 case PCI_PRODUCT_LSI_SAS1066:
309 case PCI_PRODUCT_LSI_SAS1066E:
310 case PCI_PRODUCT_LSI_SAS1068:
311 case PCI_PRODUCT_LSI_SAS1068E:
312 case PCI_PRODUCT_LSI_SAS1078:
313 mpt->is_sas = 1;
314 break;
315 default:
316 break;
317 }
318 mpt->dev = dev;
319 mpt->unit = device_get_unit(dev);
320 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
321 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
322 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
323 mpt->verbose = MPT_PRT_NONE;
324 mpt_set_options(mpt);
325 if (mpt->verbose == MPT_PRT_NONE) {
326 mpt->verbose = MPT_PRT_WARN;
327 /* Print INFO level (if any) if bootverbose is set */
328 mpt->verbose += (bootverbose != 0)? 1 : 0;
329 }
330 /* Make sure memory access decoders are enabled */
331 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
332 if ((cmd & PCIM_CMD_MEMEN) == 0) {
333 device_printf(dev, "Memory accesses disabled");
334 goto bad;
335 }
336
337 /*
338 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
339 */
340 cmd |=
341 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
342 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
343 pci_write_config(dev, PCIR_COMMAND, cmd, 2);
344
345 /*
346 * Make sure we've disabled the ROM.
347 */
348 data = pci_read_config(dev, PCIR_BIOS, 4);
349 data &= ~1;
350 pci_write_config(dev, PCIR_BIOS, data, 4);
351
352 /*
353 * Is this part a dual?
354 * If so, link with our partner (around yet)
355 */
356 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
357 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
358 mpt_link_peer(mpt);
359 }
360
361 /*
362 * Set up register access. PIO mode is required for
363 * certain reset operations (but must be disabled for
364 * some cards otherwise).
365 */
366 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
367 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
368 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
369 if (mpt->pci_pio_reg == NULL) {
370 device_printf(dev, "unable to map registers in PIO mode\n");
371 goto bad;
372 }
373 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
374 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
375
376 /* Allocate kernel virtual memory for the 9x9's Mem0 region */
377 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
378 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
379 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
380 if (mpt->pci_reg == NULL) {
381 device_printf(dev, "Unable to memory map registers.\n");
382 if (mpt->is_sas) {
383 device_printf(dev, "Giving Up.\n");
384 goto bad;
385 }
386 device_printf(dev, "Falling back to PIO mode.\n");
387 mpt->pci_st = mpt->pci_pio_st;
388 mpt->pci_sh = mpt->pci_pio_sh;
389 } else {
390 mpt->pci_st = rman_get_bustag(mpt->pci_reg);
391 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
392 }
393
394 /* Get a handle to the interrupt */
395 iqd = 0;
396#if __FreeBSD_version < 500000
397 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1,
398 RF_ACTIVE | RF_SHAREABLE);
399#else
400 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
401 RF_ACTIVE | RF_SHAREABLE);
402#endif
403 if (mpt->pci_irq == NULL) {
404 device_printf(dev, "could not allocate interrupt\n");
405 goto bad;
406 }
407
408 MPT_LOCK_SETUP(mpt);
409
410 /* Disable interrupts at the part */
411 mpt_disable_ints(mpt);
412
413 /* Register the interrupt handler */
414 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr,
415 mpt, &mpt->ih)) {
416 device_printf(dev, "could not setup interrupt\n");
417 goto bad;
418 }
419
420 /* Allocate dma memory */
421/* XXX JGibbs -Should really be done based on IOCFacts. */
422 if (mpt_dma_mem_alloc(mpt)) {
423 device_printf(dev, "Could not allocate DMA memory\n");
424 goto bad;
425 }
426
427 /*
428 * Save the PCI config register values
429 *
430 * Hard resets are known to screw up the BAR for diagnostic
431 * memory accesses (Mem1).
432 *
433 * Using Mem1 is known to make the chip stop responding to
434 * configuration space transfers, so we need to save it now
435 */
436
437 mpt_read_config_regs(mpt);
438
439 /*
440 * Disable PIO until we need it
441 */
442 pci_disable_io(dev, SYS_RES_IOPORT);
443
444 /* Initialize the hardware */
445 if (mpt->disabled == 0) {
446
447 MPT_LOCK(mpt);
448 if (mpt_attach(mpt) != 0) {
449 MPT_UNLOCK(mpt);
450 goto bad;
451 }
452 }
453
454 return (0);
455
456bad:
457 mpt_dma_mem_free(mpt);
458 mpt_free_bus_resources(mpt);
459
460 /*
461 * but return zero to preserve unit numbering
462 */
463 return (0);
464}
465
466/*
467 * Free bus resources
468 */
469static void
470mpt_free_bus_resources(struct mpt_softc *mpt)
471{
472 if (mpt->ih) {
473 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
474 mpt->ih = 0;
475 }
476
477 if (mpt->pci_irq) {
478 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq);
479 mpt->pci_irq = 0;
480 }
481
482 if (mpt->pci_pio_reg) {
483 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
484 mpt->pci_pio_reg);
485 mpt->pci_pio_reg = 0;
486 }
487 if (mpt->pci_reg) {
488 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
489 mpt->pci_reg);
490 mpt->pci_reg = 0;
491 }
492 MPT_LOCK_DESTROY(mpt);
493}
494
495
496/*
497 * Disconnect ourselves from the system.
498 */
499static int
500mpt_pci_detach(device_t dev)
501{
502 struct mpt_softc *mpt;
503
504 mpt = (struct mpt_softc*)device_get_softc(dev);
505 mpt_prt(mpt, "mpt_detach\n");
506
507 if (mpt) {
508 mpt_disable_ints(mpt);
509 mpt_detach(mpt);
510 mpt_reset(mpt, /*reinit*/FALSE);
511 mpt_dma_mem_free(mpt);
512 mpt_free_bus_resources(mpt);
513 if (mpt->raid_volumes != NULL
514 && mpt->ioc_page2 != NULL) {
515 int i;
516
517 for (i = 0; i < mpt->ioc_page2->MaxVolumes; i++) {
518 struct mpt_raid_volume *mpt_vol;
519
520 mpt_vol = &mpt->raid_volumes[i];
521 if (mpt_vol->config_page)
522 free(mpt_vol->config_page, M_DEVBUF);
523 }
524 }
525 if (mpt->ioc_page2 != NULL)
526 free(mpt->ioc_page2, M_DEVBUF);
527 if (mpt->ioc_page3 != NULL)
528 free(mpt->ioc_page3, M_DEVBUF);
529 if (mpt->raid_volumes != NULL)
530 free(mpt->raid_volumes, M_DEVBUF);
531 if (mpt->raid_disks != NULL)
532 free(mpt->raid_disks, M_DEVBUF);
533 if (mpt->eh != NULL)
534 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh);
535 }
536 return(0);
537}
538
539
540/*
541 * Disable the hardware
542 * XXX - Called too early by New Bus!!! ???
543 */
544static int
545mpt_pci_shutdown(device_t dev)
546{
547 struct mpt_softc *mpt;
548
549 mpt = (struct mpt_softc *)device_get_softc(dev);
550 if (mpt)
551 return (mpt_shutdown(mpt));
552 return(0);
553}
554
555static int
556mpt_dma_mem_alloc(struct mpt_softc *mpt)
557{
558 int i, error, nsegs;
559 uint8_t *vptr;
560 uint32_t pptr, end;
561 size_t len;
562 struct mpt_map_info mi;
563 device_t dev = mpt->dev;
564
565 /* Check if we alreay have allocated the reply memory */
566 if (mpt->reply_phys != 0) {
567 return 0;
568 }
569
570 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
571#ifdef RELENG_4
572 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
573 if (mpt->request_pool == NULL) {
574 device_printf(dev, "cannot allocate request pool\n");
575 return (1);
576 }
577 bzero(mpt->request_pool, len);
578#else
579 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
580 if (mpt->request_pool == NULL) {
581 device_printf(dev, "cannot allocate request pool\n");
582 return (1);
583 }
584#endif
585
586 /*
587 * Create a parent dma tag for this device.
588 *
589 * Align at byte boundaries, limit to 32-bit addressing for
590 * request/reply queues.
591 */
592 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1,
593 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR,
594 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
595 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
596 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
597 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
598 &mpt->parent_dmat) != 0) {
599 device_printf(dev, "cannot create parent dma tag\n");
600 return (1);
601 }
602
603 /* Create a child tag for reply buffers */
604 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 2 * PAGE_SIZE,
605 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
606 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
607 &mpt->reply_dmat) != 0) {
608 device_printf(dev, "cannot create a dma tag for replies\n");
609 return (1);
610 }
611
612 /* Allocate some DMA accessable memory for replies */
613 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
614 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
615 device_printf(dev,
616 "cannot allocate %lu bytes of reply memory\n",
617 (u_long) (2 * PAGE_SIZE));
618 return (1);
619 }
620
621 mi.mpt = mpt;
622 mi.error = 0;
623
624 /* Load and lock it into "bus space" */
625 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
626 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0);
627
628 if (mi.error) {
629 device_printf(dev,
630 "error %d loading dma map for DMA reply queue\n", mi.error);
631 return (1);
632 }
633 mpt->reply_phys = mi.phys;
634
635 /* Create a child tag for data buffers */
636
637 /*
638 * XXX: we should say that nsegs is 'unrestricted, but that
639 * XXX: tickles a horrible bug in the busdma code. Instead,
640 * XXX: we'll derive a reasonable segment limit from MAXPHYS
641 */
642 nsegs = (MAXPHYS / PAGE_SIZE) + 1;
643 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
644 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
645 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0,
646 &mpt->buffer_dmat) != 0) {
647 device_printf(dev,
648 "cannot create a dma tag for data buffers\n");
649 return (1);
650 }
651
652 /* Create a child tag for request buffers */
653 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE,
654 0, BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
655 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
656 &mpt->request_dmat) != 0) {
657 device_printf(dev, "cannot create a dma tag for requests\n");
658 return (1);
659 }
660
661 /* Allocate some DMA accessable memory for requests */
662 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
663 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
664 device_printf(dev,
665 "cannot allocate %d bytes of request memory\n",
666 MPT_REQ_MEM_SIZE(mpt));
667 return (1);
668 }
669
670 mi.mpt = mpt;
671 mi.error = 0;
672
673 /* Load and lock it into "bus space" */
674 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
675 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
676
677 if (mi.error) {
678 device_printf(dev,
679 "error %d loading dma map for DMA request queue\n",
680 mi.error);
681 return (1);
682 }
683 mpt->request_phys = mi.phys;
684
685 i = 0;
686 pptr = mpt->request_phys;
687 vptr = mpt->request;
688 end = pptr + MPT_REQ_MEM_SIZE(mpt);
689 while(pptr < end) {
690 request_t *req = &mpt->request_pool[i];
691 req->index = i++;
692
693 /* Store location of Request Data */
694 req->req_pbuf = pptr;
695 req->req_vbuf = vptr;
696
697 pptr += MPT_REQUEST_AREA;
698 vptr += MPT_REQUEST_AREA;
699
700 req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
701 req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
702
703 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
704 if (error) {
705 device_printf(dev,
706 "error %d creating per-cmd DMA maps\n", error);
707 return (1);
708 }
709 }
710 return (0);
711}
712
713
714
715/* Deallocate memory that was allocated by mpt_dma_mem_alloc
716 */
717static void
718mpt_dma_mem_free(struct mpt_softc *mpt)
719{
720 int i;
721
722 /* Make sure we aren't double destroying */
723 if (mpt->reply_dmat == 0) {
724 if (mpt->verbose >= MPT_PRT_DEBUG)
725 device_printf(mpt->dev,"Already released dma memory\n");
726 return;
727 }
728
729 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
730 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
731 }
732 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
733 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
734 bus_dma_tag_destroy(mpt->request_dmat);
735 bus_dma_tag_destroy(mpt->buffer_dmat);
736 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
737 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
738 bus_dma_tag_destroy(mpt->reply_dmat);
739 bus_dma_tag_destroy(mpt->parent_dmat);
740 mpt->reply_dmat = 0;
741 free(mpt->request_pool, M_DEVBUF);
742 mpt->request_pool = 0;
743
744}
745
746
747
748/* Reads modifiable (via PCI transactions) config registers */
749static void
750mpt_read_config_regs(struct mpt_softc *mpt)
751{
752 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
753 mpt->pci_cfg.LatencyTimer_LineSize =
754 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
755 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
756 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
757 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
758 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
759 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
760 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
761 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
762 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
763}
764
765/* Sets modifiable config registers */
766void
767mpt_set_config_regs(struct mpt_softc *mpt)
768{
769 uint32_t val;
770
771#define MPT_CHECK(reg, offset, size) \
772 val = pci_read_config(mpt->dev, offset, size); \
773 if (mpt->pci_cfg.reg != val) { \
774 mpt_prt(mpt, \
775 "Restoring " #reg " to 0x%X from 0x%X\n", \
776 mpt->pci_cfg.reg, val); \
777 }
778
779 if (mpt->verbose >= MPT_PRT_DEBUG) {
780 MPT_CHECK(Command, PCIR_COMMAND, 2);
781 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
782 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
783 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
784 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
785 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
786 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
787 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
788 MPT_CHECK(IntLine, PCIR_INTLINE, 1);
789 MPT_CHECK(PMCSR, 0x44, 4);
790 }
791#undef MPT_CHECK
792
793 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
794 pci_write_config(mpt->dev, PCIR_CACHELNSZ,
795 mpt->pci_cfg.LatencyTimer_LineSize, 2);
796 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
797 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
798 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
799 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
800 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
801 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
802 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
803 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
804}
805
806static void
807mpt_pci_intr(void *arg)
808{
809 struct mpt_softc *mpt;
810
811 mpt = (struct mpt_softc *)arg;
812 MPT_LOCK(mpt);
813 mpt_intr(mpt);
814 MPT_UNLOCK(mpt);
815}