2 * PCI specific probe and attach routines for LSI Fusion Adapters
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
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
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.
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
33 * Copyright (c) 2002, 2006 by Matthew Jacob
34 * All rights reserved.
36 * Redistribution and use in source and binary forms, with or without
37 * modification, are permitted provided that the following conditions are
39 * 1. Redistributions of source code must retain the above copyright
40 * notice, this list of conditions and the following disclaimer.
41 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
42 * substantially similar to the "NO WARRANTY" disclaimer below
43 * ("Disclaimer") and any redistribution must be conditioned upon including
44 * a substantially similar Disclaimer requirement for further binary
46 * 3. Neither the names of the above listed copyright holders nor the names
47 * of any contributors may be used to endorse or promote products derived
48 * from this software without specific prior written permission.
50 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
51 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
52 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
53 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
54 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
55 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
56 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
57 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
58 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
59 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
60 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
62 * Support from Chris Ellsworth in order to make SAS adapters work
63 * is gratefully acknowledged.
65 * Support from LSI-Logic has also gone a great deal toward making this a
66 * workable subsystem and is gratefully acknowledged.
69 * Copyright (c) 2004, Avid Technology, Inc. and its contributors.
70 * Copyright (c) 2005, WHEEL Sp. z o.o.
71 * Copyright (c) 2004, 2005 Justin T. Gibbs
72 * All rights reserved.
74 * Redistribution and use in source and binary forms, with or without
75 * modification, are permitted provided that the following conditions are
77 * 1. Redistributions of source code must retain the above copyright
78 * notice, this list of conditions and the following disclaimer.
79 * 2. Redistributions in binary form must reproduce at minimum a disclaimer
80 * substantially similar to the "NO WARRANTY" disclaimer below
81 * ("Disclaimer") and any redistribution must be conditioned upon including
82 * a substantially similar Disclaimer requirement for further binary
84 * 3. Neither the names of the above listed copyright holders nor the names
85 * of any contributors may be used to endorse or promote products derived
86 * from this software without specific prior written permission.
88 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
89 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
90 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
91 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
92 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
93 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
94 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
95 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
96 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
97 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF THE COPYRIGHT
98 * OWNER OR CONTRIBUTOR IS ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
100 * $FreeBSD: src/sys/dev/mpt/mpt_pci.c,v 1.54 2009/07/10 08:18:08 scottl Exp $
103 #include <dev/disk/mpt/mpt.h>
104 #include <dev/disk/mpt/mpt_cam.h>
105 #include <dev/disk/mpt/mpt_raid.h>
107 #if __FreeBSD_version < 700000
108 #define pci_msix_count(x) 0
109 #define pci_msi_count(x) 0
110 #define pci_alloc_msi(x, y) 1
111 #define pci_alloc_msix(x, y) 1
112 #define pci_release_msi(x) do { ; } while (0)
115 #ifndef PCI_VENDOR_LSI
116 #define PCI_VENDOR_LSI 0x1000
119 #ifndef PCI_PRODUCT_LSI_FC909
120 #define PCI_PRODUCT_LSI_FC909 0x0620
123 #ifndef PCI_PRODUCT_LSI_FC909A
124 #define PCI_PRODUCT_LSI_FC909A 0x0621
127 #ifndef PCI_PRODUCT_LSI_FC919
128 #define PCI_PRODUCT_LSI_FC919 0x0624
131 #ifndef PCI_PRODUCT_LSI_FC929
132 #define PCI_PRODUCT_LSI_FC929 0x0622
135 #ifndef PCI_PRODUCT_LSI_FC929X
136 #define PCI_PRODUCT_LSI_FC929X 0x0626
139 #ifndef PCI_PRODUCT_LSI_FC919X
140 #define PCI_PRODUCT_LSI_FC919X 0x0628
143 #ifndef PCI_PRODUCT_LSI_FC7X04X
144 #define PCI_PRODUCT_LSI_FC7X04X 0x0640
147 #ifndef PCI_PRODUCT_LSI_FC646
148 #define PCI_PRODUCT_LSI_FC646 0x0646
151 #ifndef PCI_PRODUCT_LSI_1030
152 #define PCI_PRODUCT_LSI_1030 0x0030
155 #ifndef PCI_PRODUCT_LSI_SAS1064
156 #define PCI_PRODUCT_LSI_SAS1064 0x0050
159 #ifndef PCI_PRODUCT_LSI_SAS1064A
160 #define PCI_PRODUCT_LSI_SAS1064A 0x005C
163 #ifndef PCI_PRODUCT_LSI_SAS1064E
164 #define PCI_PRODUCT_LSI_SAS1064E 0x0056
167 #ifndef PCI_PRODUCT_LSI_SAS1066
168 #define PCI_PRODUCT_LSI_SAS1066 0x005E
171 #ifndef PCI_PRODUCT_LSI_SAS1066E
172 #define PCI_PRODUCT_LSI_SAS1066E 0x005A
175 #ifndef PCI_PRODUCT_LSI_SAS1068
176 #define PCI_PRODUCT_LSI_SAS1068 0x0054
179 #ifndef PCI_PRODUCT_LSI_SAS1068E
180 #define PCI_PRODUCT_LSI_SAS1068E 0x0058
183 #ifndef PCI_PRODUCT_LSI_SAS1078
184 #define PCI_PRODUCT_LSI_SAS1078 0x0062
187 #ifndef PCI_PRODUCT_LSI_SAS1078DE
188 #define PCI_PRODUCT_LSI_SAS1078DE 0x007C
191 #ifndef PCIM_CMD_SERRESPEN
192 #define PCIM_CMD_SERRESPEN 0x0100
197 #define MPT_MEM_BAR 1
199 static int mpt_pci_probe(device_t);
200 static int mpt_pci_attach(device_t);
201 static void mpt_free_bus_resources(struct mpt_softc *mpt);
202 static int mpt_pci_detach(device_t);
203 static int mpt_pci_shutdown(device_t);
204 static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
205 static void mpt_dma_mem_free(struct mpt_softc *mpt);
206 static void mpt_read_config_regs(struct mpt_softc *mpt);
207 static void mpt_pci_intr(void *);
209 static device_method_t mpt_methods[] = {
210 /* Device interface */
211 DEVMETHOD(device_probe, mpt_pci_probe),
212 DEVMETHOD(device_attach, mpt_pci_attach),
213 DEVMETHOD(device_detach, mpt_pci_detach),
214 DEVMETHOD(device_shutdown, mpt_pci_shutdown),
218 static driver_t mpt_driver = {
219 "mpt", mpt_methods, sizeof(struct mpt_softc)
221 static devclass_t mpt_devclass;
222 DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
223 MODULE_DEPEND(mpt, pci, 1, 1, 1);
224 MODULE_VERSION(mpt, 1);
227 mpt_pci_probe(device_t dev)
231 if (pci_get_vendor(dev) != PCI_VENDOR_LSI) {
235 switch ((pci_get_device(dev) & ~1)) {
236 case PCI_PRODUCT_LSI_FC909:
237 desc = "LSILogic FC909 FC Adapter";
239 case PCI_PRODUCT_LSI_FC909A:
240 desc = "LSILogic FC909A FC Adapter";
242 case PCI_PRODUCT_LSI_FC919:
243 desc = "LSILogic FC919 FC Adapter";
245 case PCI_PRODUCT_LSI_FC929:
246 desc = "Dual LSILogic FC929 FC Adapter";
248 case PCI_PRODUCT_LSI_FC919X:
249 desc = "LSILogic FC919 FC PCI-X Adapter";
251 case PCI_PRODUCT_LSI_FC929X:
252 desc = "Dual LSILogic FC929X 2Gb/s FC PCI-X Adapter";
254 case PCI_PRODUCT_LSI_FC646:
255 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-Express Adapter";
257 case PCI_PRODUCT_LSI_FC7X04X:
258 desc = "Dual LSILogic FC7X04X 4Gb/s FC PCI-X Adapter";
260 case PCI_PRODUCT_LSI_1030:
261 desc = "LSILogic 1030 Ultra4 Adapter";
263 case PCI_PRODUCT_LSI_SAS1064:
264 case PCI_PRODUCT_LSI_SAS1064A:
265 case PCI_PRODUCT_LSI_SAS1064E:
266 case PCI_PRODUCT_LSI_SAS1066:
267 case PCI_PRODUCT_LSI_SAS1066E:
268 case PCI_PRODUCT_LSI_SAS1068:
269 case PCI_PRODUCT_LSI_SAS1068E:
270 case PCI_PRODUCT_LSI_SAS1078:
271 case PCI_PRODUCT_LSI_SAS1078DE:
272 desc = "LSILogic SAS/SATA Adapter";
278 device_set_desc(dev, desc);
282 #if __FreeBSD_version < 500000
284 mpt_set_options(struct mpt_softc *mpt)
289 if (kgetenv_int("mpt_disable", &bitmap)) {
290 if (bitmap & (1 << mpt->unit)) {
295 if (kgetenv_int("mpt_debug", &bitmap)) {
296 if (bitmap & (1 << mpt->unit)) {
297 mpt->verbose = MPT_PRT_DEBUG;
301 if (kgetenv_int("mpt_debug1", &bitmap)) {
302 if (bitmap & (1 << mpt->unit)) {
303 mpt->verbose = MPT_PRT_DEBUG1;
307 if (kgetenv_int("mpt_debug2", &bitmap)) {
308 if (bitmap & (1 << mpt->unit)) {
309 mpt->verbose = MPT_PRT_DEBUG2;
313 if (kgetenv_int("mpt_debug3", &bitmap)) {
314 if (bitmap & (1 << mpt->unit)) {
315 mpt->verbose = MPT_PRT_DEBUG3;
319 mpt->cfg_role = MPT_ROLE_DEFAULT;
321 if (kgetenv_int("mpt_nil_role", &bitmap)) {
322 if (bitmap & (1 << mpt->unit)) {
325 mpt->do_cfg_role = 1;
328 if (kgetenv_int("mpt_tgt_role", &bitmap)) {
329 if (bitmap & (1 << mpt->unit)) {
330 mpt->cfg_role |= MPT_ROLE_TARGET;
332 mpt->do_cfg_role = 1;
335 if (kgetenv_int("mpt_ini_role", &bitmap)) {
336 if (bitmap & (1 << mpt->unit)) {
337 mpt->cfg_role |= MPT_ROLE_INITIATOR;
339 mpt->do_cfg_role = 1;
345 mpt_set_options(struct mpt_softc *mpt)
350 if (resource_int_value(device_get_name(mpt->dev),
351 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
355 if (resource_int_value(device_get_name(mpt->dev),
356 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
360 if (resource_int_value(device_get_name(mpt->dev),
361 device_get_unit(mpt->dev), "role", &tval) == 0 && tval >= 0 &&
363 mpt->cfg_role = tval;
364 mpt->do_cfg_role = 1;
369 if (resource_int_value(device_get_name(mpt->dev),
370 device_get_unit(mpt->dev), "msi_enable", &tval) == 0 && tval == 1) {
378 mpt_link_peer(struct mpt_softc *mpt)
380 struct mpt_softc *mpt2;
382 if (mpt->unit == 0) {
386 * XXX: depends on probe order
388 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
393 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
396 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
401 if (mpt->verbose >= MPT_PRT_DEBUG) {
402 mpt_prt(mpt, "linking with peer (mpt%d)\n",
403 device_get_unit(mpt2->dev));
408 mpt_unlink_peer(struct mpt_softc *mpt)
411 mpt->mpt2->mpt2 = NULL;
417 mpt_pci_attach(device_t dev)
419 struct mpt_softc *mpt;
423 /* Allocate the softc structure */
424 mpt = (struct mpt_softc*)device_get_softc(dev);
426 device_printf(dev, "cannot allocate softc\n");
429 memset(mpt, 0, sizeof(struct mpt_softc));
430 switch ((pci_get_device(dev) & ~1)) {
431 case PCI_PRODUCT_LSI_FC909:
432 case PCI_PRODUCT_LSI_FC909A:
433 case PCI_PRODUCT_LSI_FC919:
434 case PCI_PRODUCT_LSI_FC929:
435 case PCI_PRODUCT_LSI_FC919X:
436 case PCI_PRODUCT_LSI_FC646:
437 case PCI_PRODUCT_LSI_FC7X04X:
440 case PCI_PRODUCT_LSI_SAS1064:
441 case PCI_PRODUCT_LSI_SAS1064A:
442 case PCI_PRODUCT_LSI_SAS1064E:
443 case PCI_PRODUCT_LSI_SAS1066:
444 case PCI_PRODUCT_LSI_SAS1066E:
445 case PCI_PRODUCT_LSI_SAS1068:
446 case PCI_PRODUCT_LSI_SAS1068E:
447 case PCI_PRODUCT_LSI_SAS1078:
448 case PCI_PRODUCT_LSI_SAS1078DE:
456 mpt->unit = device_get_unit(dev);
457 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
458 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
459 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
460 mpt->verbose = MPT_PRT_NONE;
461 mpt->role = MPT_ROLE_NONE;
462 mpt_set_options(mpt);
463 if (mpt->verbose == MPT_PRT_NONE) {
464 mpt->verbose = MPT_PRT_WARN;
465 /* Print INFO level (if any) if bootverbose is set */
466 mpt->verbose += (bootverbose != 0)? 1 : 0;
468 /* Make sure memory access decoders are enabled */
469 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
470 if ((cmd & PCIM_CMD_MEMEN) == 0) {
471 device_printf(dev, "Memory accesses disabled");
476 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
479 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
480 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
481 pci_write_config(dev, PCIR_COMMAND, cmd, 2);
484 * Make sure we've disabled the ROM.
486 data = pci_read_config(dev, PCIR_BIOS, 4);
488 pci_write_config(dev, PCIR_BIOS, data, 4);
491 * Is this part a dual?
492 * If so, link with our partner (around yet)
494 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
495 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC646 ||
496 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC7X04X ||
497 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
502 * Set up register access. PIO mode is required for
503 * certain reset operations (but must be disabled for
504 * some cards otherwise).
506 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
507 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
508 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
509 if (mpt->pci_pio_reg == NULL) {
510 device_printf(dev, "unable to map registers in PIO mode\n");
513 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
514 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
516 /* Allocate kernel virtual memory for the 9x9's Mem0 region */
517 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
518 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
519 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
520 if (mpt->pci_reg == NULL) {
521 device_printf(dev, "Unable to memory map registers.\n");
523 device_printf(dev, "Giving Up.\n");
526 device_printf(dev, "Falling back to PIO mode.\n");
527 mpt->pci_st = mpt->pci_pio_st;
528 mpt->pci_sh = mpt->pci_pio_sh;
530 mpt->pci_st = rman_get_bustag(mpt->pci_reg);
531 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
534 /* Get a handle to the interrupt */
536 if (mpt->msi_enable) {
538 * First try to alloc an MSI-X message. If that
539 * fails, then try to alloc an MSI message instead.
541 if (pci_msix_count(dev) == 1) {
542 mpt->pci_msi_count = 1;
543 if (pci_alloc_msix(dev, &mpt->pci_msi_count) == 0) {
546 mpt->pci_msi_count = 0;
549 if (iqd == 0 && pci_msi_count(dev) == 1) {
550 mpt->pci_msi_count = 1;
551 if (pci_alloc_msi(dev, &mpt->pci_msi_count) == 0) {
554 mpt->pci_msi_count = 0;
558 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
559 RF_ACTIVE | RF_SHAREABLE);
560 if (mpt->pci_irq == NULL) {
561 device_printf(dev, "could not allocate interrupt\n");
567 /* Disable interrupts at the part */
568 mpt_disable_ints(mpt);
570 /* Register the interrupt handler */
571 if (mpt_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, NULL, mpt_pci_intr,
573 device_printf(dev, "could not setup interrupt\n");
577 /* Allocate dma memory */
578 /* XXX JGibbs -Should really be done based on IOCFacts. */
579 if (mpt_dma_mem_alloc(mpt)) {
580 mpt_prt(mpt, "Could not allocate DMA memory\n");
585 * Save the PCI config register values
587 * Hard resets are known to screw up the BAR for diagnostic
588 * memory accesses (Mem1).
590 * Using Mem1 is known to make the chip stop responding to
591 * configuration space transfers, so we need to save it now
594 mpt_read_config_regs(mpt);
597 * Disable PIO until we need it
600 pci_disable_io(dev, SYS_RES_IOPORT);
603 /* Initialize the hardware */
604 if (mpt->disabled == 0) {
605 if (mpt_attach(mpt) != 0) {
609 mpt_prt(mpt, "device disabled at user request\n");
613 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown,
614 dev, SHUTDOWN_PRI_DEFAULT);
616 if (mpt->eh == NULL) {
617 mpt_prt(mpt, "shutdown event registration failed\n");
618 (void) mpt_detach(mpt);
624 mpt_dma_mem_free(mpt);
625 mpt_free_bus_resources(mpt);
626 mpt_unlink_peer(mpt);
628 MPT_LOCK_DESTROY(mpt);
631 * but return zero to preserve unit numbering
640 mpt_free_bus_resources(struct mpt_softc *mpt)
643 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
648 bus_release_resource(mpt->dev, SYS_RES_IRQ,
649 mpt->pci_msi_count ? 1 : 0, mpt->pci_irq);
653 if (mpt->pci_msi_count) {
654 pci_release_msi(mpt->dev);
655 mpt->pci_msi_count = 0;
658 if (mpt->pci_pio_reg) {
659 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
661 mpt->pci_pio_reg = 0;
664 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
668 MPT_LOCK_DESTROY(mpt);
673 * Disconnect ourselves from the system.
676 mpt_pci_detach(device_t dev)
678 struct mpt_softc *mpt;
680 mpt = (struct mpt_softc*)device_get_softc(dev);
683 mpt_disable_ints(mpt);
685 mpt_reset(mpt, /*reinit*/FALSE);
686 mpt_dma_mem_free(mpt);
687 mpt_free_bus_resources(mpt);
688 mpt_raid_free_mem(mpt);
689 if (mpt->eh != NULL) {
690 EVENTHANDLER_DEREGISTER(shutdown_post_sync, mpt->eh);
698 * Disable the hardware
701 mpt_pci_shutdown(device_t dev)
703 struct mpt_softc *mpt;
705 mpt = (struct mpt_softc *)device_get_softc(dev);
708 r = mpt_shutdown(mpt);
715 mpt_dma_mem_alloc(struct mpt_softc *mpt)
721 struct mpt_map_info mi;
723 /* Check if we alreay have allocated the reply memory */
724 if (mpt->reply_phys != 0) {
728 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
730 mpt->request_pool = (request_t *)kmalloc(len, M_DEVBUF, M_WAITOK);
731 if (mpt->request_pool == NULL) {
732 mpt_prt(mpt, "cannot allocate request pool\n");
735 memset(mpt->request_pool, 0, len);
737 mpt->request_pool = (request_t *)kmalloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
738 if (mpt->request_pool == NULL) {
739 mpt_prt(mpt, "cannot allocate request pool\n");
745 * Create a parent dma tag for this device.
747 * Align at byte boundaries,
748 * Limit to 32-bit addressing for request/reply queues.
750 if (mpt_dma_tag_create(mpt, /*parent*/bus_get_dma_tag(mpt->dev),
751 /*alignment*/1, /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR,
752 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
753 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
754 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
755 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
756 &mpt->parent_dmat) != 0) {
757 mpt_prt(mpt, "cannot create parent dma tag\n");
761 /* Create a child tag for reply buffers */
762 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0,
763 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
764 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
765 &mpt->reply_dmat) != 0) {
766 mpt_prt(mpt, "cannot create a dma tag for replies\n");
770 /* Allocate some DMA accessable memory for replies */
771 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
772 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
773 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n",
774 (u_long) (2 * PAGE_SIZE));
781 /* Load and lock it into "bus space" */
782 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
783 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0);
786 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n",
790 mpt->reply_phys = mi.phys;
792 /* Create a child tag for data buffers */
795 * XXX: we should say that nsegs is 'unrestricted, but that
796 * XXX: tickles a horrible bug in the busdma code. Instead,
797 * XXX: we'll derive a reasonable segment limit from MPT_MAXPHYS
799 nsegs = (MPT_MAXPHYS / PAGE_SIZE) + 1;
800 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
801 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
802 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0,
803 &mpt->buffer_dmat) != 0) {
804 mpt_prt(mpt, "cannot create a dma tag for data buffers\n");
808 /* Create a child tag for request buffers */
809 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0,
810 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
811 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
812 &mpt->request_dmat) != 0) {
813 mpt_prt(mpt, "cannot create a dma tag for requests\n");
817 /* Allocate some DMA accessable memory for requests */
818 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
819 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
820 mpt_prt(mpt, "cannot allocate %d bytes of request memory\n",
821 MPT_REQ_MEM_SIZE(mpt));
828 /* Load and lock it into "bus space" */
829 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
830 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
833 mpt_prt(mpt, "error %d loading dma map for DMA request queue\n",
837 mpt->request_phys = mi.phys;
840 * Now create per-request dma maps
843 pptr = mpt->request_phys;
845 end = pptr + MPT_REQ_MEM_SIZE(mpt);
847 request_t *req = &mpt->request_pool[i];
850 /* Store location of Request Data */
851 req->req_pbuf = pptr;
852 req->req_vbuf = vptr;
854 pptr += MPT_REQUEST_AREA;
855 vptr += MPT_REQUEST_AREA;
857 req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
858 req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
860 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
862 mpt_prt(mpt, "error %d creating per-cmd DMA maps\n",
873 /* Deallocate memory that was allocated by mpt_dma_mem_alloc
876 mpt_dma_mem_free(struct mpt_softc *mpt)
880 /* Make sure we aren't double destroying */
881 if (mpt->reply_dmat == 0) {
882 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n");
886 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
887 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
889 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
890 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
891 bus_dma_tag_destroy(mpt->request_dmat);
892 bus_dma_tag_destroy(mpt->buffer_dmat);
893 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
894 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
895 bus_dma_tag_destroy(mpt->reply_dmat);
896 bus_dma_tag_destroy(mpt->parent_dmat);
898 kfree(mpt->request_pool, M_DEVBUF);
899 mpt->request_pool = 0;
905 /* Reads modifiable (via PCI transactions) config registers */
907 mpt_read_config_regs(struct mpt_softc *mpt)
909 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
910 mpt->pci_cfg.LatencyTimer_LineSize =
911 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
912 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
913 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
914 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
915 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
916 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
917 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
918 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
919 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
922 /* Sets modifiable config registers */
924 mpt_set_config_regs(struct mpt_softc *mpt)
928 #define MPT_CHECK(reg, offset, size) \
929 val = pci_read_config(mpt->dev, offset, size); \
930 if (mpt->pci_cfg.reg != val) { \
932 "Restoring " #reg " to 0x%X from 0x%X\n", \
933 mpt->pci_cfg.reg, val); \
936 if (mpt->verbose >= MPT_PRT_DEBUG) {
937 MPT_CHECK(Command, PCIR_COMMAND, 2);
938 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
939 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
940 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
941 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
942 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
943 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
944 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
945 MPT_CHECK(IntLine, PCIR_INTLINE, 1);
946 MPT_CHECK(PMCSR, 0x44, 4);
950 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
951 pci_write_config(mpt->dev, PCIR_CACHELNSZ,
952 mpt->pci_cfg.LatencyTimer_LineSize, 2);
953 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
954 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
955 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
956 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
957 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
958 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
959 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
960 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
964 mpt_pci_intr(void *arg)
966 struct mpt_softc *mpt;
968 mpt = (struct mpt_softc *)arg;