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.
101 #include <sys/cdefs.h>
102 __FBSDID("$FreeBSD$");
104 #include <dev/mpt/mpt.h>
105 #include <dev/mpt/mpt_cam.h>
106 #include <dev/mpt/mpt_raid.h>
109 #ifndef PCI_VENDOR_LSI
110 #define PCI_VENDOR_LSI 0x1000
113 #ifndef PCI_PRODUCT_LSI_FC909
114 #define PCI_PRODUCT_LSI_FC909 0x0620
117 #ifndef PCI_PRODUCT_LSI_FC909A
118 #define PCI_PRODUCT_LSI_FC909A 0x0621
121 #ifndef PCI_PRODUCT_LSI_FC919
122 #define PCI_PRODUCT_LSI_FC919 0x0624
125 #ifndef PCI_PRODUCT_LSI_FC929
126 #define PCI_PRODUCT_LSI_FC929 0x0622
129 #ifndef PCI_PRODUCT_LSI_FC929X
130 #define PCI_PRODUCT_LSI_FC929X 0x0626
133 #ifndef PCI_PRODUCT_LSI_FC919X
134 #define PCI_PRODUCT_LSI_FC919X 0x0628
137 #ifndef PCI_PRODUCT_LSI_FC7X04X
138 #define PCI_PRODUCT_LSI_FC7X04X 0x0640
141 #ifndef PCI_PRODUCT_LSI_1030
142 #define PCI_PRODUCT_LSI_1030 0x0030
145 #ifndef PCI_PRODUCT_LSI_SAS1064
146 #define PCI_PRODUCT_LSI_SAS1064 0x0050
149 #ifndef PCI_PRODUCT_LSI_SAS1064A
150 #define PCI_PRODUCT_LSI_SAS1064A 0x005C
153 #ifndef PCI_PRODUCT_LSI_SAS1064E
154 #define PCI_PRODUCT_LSI_SAS1064E 0x0056
157 #ifndef PCI_PRODUCT_LSI_SAS1066
158 #define PCI_PRODUCT_LSI_SAS1066 0x005E
161 #ifndef PCI_PRODUCT_LSI_SAS1066E
162 #define PCI_PRODUCT_LSI_SAS1066E 0x005A
165 #ifndef PCI_PRODUCT_LSI_SAS1068
166 #define PCI_PRODUCT_LSI_SAS1068 0x0054
169 #ifndef PCI_PRODUCT_LSI_SAS1068E
170 #define PCI_PRODUCT_LSI_SAS1068E 0x0058
173 #ifndef PCI_PRODUCT_LSI_SAS1078
174 #define PCI_PRODUCT_LSI_SAS1078 0x0060
177 #ifndef PCIM_CMD_SERRESPEN
178 #define PCIM_CMD_SERRESPEN 0x0100
183 #define MPT_MEM_BAR 1
185 static int mpt_pci_probe(device_t);
186 static int mpt_pci_attach(device_t);
187 static void mpt_free_bus_resources(struct mpt_softc *mpt);
188 static int mpt_pci_detach(device_t);
189 static int mpt_pci_shutdown(device_t);
190 static int mpt_dma_mem_alloc(struct mpt_softc *mpt);
191 static void mpt_dma_mem_free(struct mpt_softc *mpt);
192 static void mpt_read_config_regs(struct mpt_softc *mpt);
193 static void mpt_pci_intr(void *);
195 static device_method_t mpt_methods[] = {
196 /* Device interface */
197 DEVMETHOD(device_probe, mpt_pci_probe),
198 DEVMETHOD(device_attach, mpt_pci_attach),
199 DEVMETHOD(device_detach, mpt_pci_detach),
200 DEVMETHOD(device_shutdown, mpt_pci_shutdown),
204 static driver_t mpt_driver = {
205 "mpt", mpt_methods, sizeof(struct mpt_softc)
207 static devclass_t mpt_devclass;
208 DRIVER_MODULE(mpt, pci, mpt_driver, mpt_devclass, 0, 0);
209 MODULE_VERSION(mpt, 1);
212 mpt_pci_probe(device_t dev)
216 if (pci_get_vendor(dev) != PCI_VENDOR_LSI)
219 switch ((pci_get_device(dev) & ~1)) {
220 case PCI_PRODUCT_LSI_FC909:
221 desc = "LSILogic FC909 FC Adapter";
223 case PCI_PRODUCT_LSI_FC909A:
224 desc = "LSILogic FC909A FC Adapter";
226 case PCI_PRODUCT_LSI_FC919:
227 desc = "LSILogic FC919 FC Adapter";
229 case PCI_PRODUCT_LSI_FC929:
230 desc = "LSILogic FC929 FC Adapter";
232 case PCI_PRODUCT_LSI_FC919X:
233 desc = "LSILogic FC919X FC Adapter";
235 case PCI_PRODUCT_LSI_FC929X:
236 desc = "LSILogic FC929X 2Gb/s FC Adapter";
238 case PCI_PRODUCT_LSI_FC7X04X:
239 desc = "LSILogic FC7X04X 4Gb/s FC Adapter";
241 case PCI_PRODUCT_LSI_1030:
242 desc = "LSILogic 1030 Ultra4 Adapter";
244 case PCI_PRODUCT_LSI_SAS1064:
245 case PCI_PRODUCT_LSI_SAS1064A:
246 case PCI_PRODUCT_LSI_SAS1064E:
247 case PCI_PRODUCT_LSI_SAS1066:
248 case PCI_PRODUCT_LSI_SAS1066E:
249 case PCI_PRODUCT_LSI_SAS1068:
250 case PCI_PRODUCT_LSI_SAS1068E:
251 case PCI_PRODUCT_LSI_SAS1078:
252 desc = "LSILogic SAS Adapter";
258 device_set_desc(dev, desc);
262 #if __FreeBSD_version < 500000
264 mpt_set_options(struct mpt_softc *mpt)
269 if (getenv_int("mpt_disable", &bitmap)) {
270 if (bitmap & (1 << mpt->unit)) {
275 if (getenv_int("mpt_debug", &bitmap)) {
276 if (bitmap & (1 << mpt->unit)) {
277 mpt->verbose = MPT_PRT_DEBUG;
281 if (getenv_int("mpt_debug1", &bitmap)) {
282 if (bitmap & (1 << mpt->unit)) {
283 mpt->verbose = MPT_PRT_DEBUG1;
287 if (getenv_int("mpt_debug2", &bitmap)) {
288 if (bitmap & (1 << mpt->unit)) {
289 mpt->verbose = MPT_PRT_DEBUG2;
293 if (getenv_int("mpt_debug3", &bitmap)) {
294 if (bitmap & (1 << mpt->unit)) {
295 mpt->verbose = MPT_PRT_DEBUG3;
301 mpt_set_options(struct mpt_softc *mpt)
306 if (resource_int_value(device_get_name(mpt->dev),
307 device_get_unit(mpt->dev), "disable", &tval) == 0 && tval != 0) {
311 if (resource_int_value(device_get_name(mpt->dev),
312 device_get_unit(mpt->dev), "debug", &tval) == 0 && tval != 0) {
316 if (resource_int_value(device_get_name(mpt->dev),
317 device_get_unit(mpt->dev), "role", &tval) == 0 && tval != 0 &&
326 mpt_link_peer(struct mpt_softc *mpt)
328 struct mpt_softc *mpt2;
330 if (mpt->unit == 0) {
334 * XXX: depends on probe order
336 mpt2 = (struct mpt_softc *)devclass_get_softc(mpt_devclass,mpt->unit-1);
341 if (pci_get_vendor(mpt2->dev) != pci_get_vendor(mpt->dev)) {
344 if (pci_get_device(mpt2->dev) != pci_get_device(mpt->dev)) {
349 if (mpt->verbose >= MPT_PRT_DEBUG) {
350 mpt_prt(mpt, "linking with peer (mpt%d)\n",
351 device_get_unit(mpt2->dev));
356 mpt_unlink_peer(struct mpt_softc *mpt)
359 mpt->mpt2->mpt2 = NULL;
365 mpt_pci_attach(device_t dev)
367 struct mpt_softc *mpt;
371 /* Allocate the softc structure */
372 mpt = (struct mpt_softc*)device_get_softc(dev);
374 device_printf(dev, "cannot allocate softc\n");
377 memset(mpt, 0, sizeof(struct mpt_softc));
378 switch ((pci_get_device(dev) & ~1)) {
379 case PCI_PRODUCT_LSI_FC909:
380 case PCI_PRODUCT_LSI_FC909A:
381 case PCI_PRODUCT_LSI_FC919:
382 case PCI_PRODUCT_LSI_FC929:
383 case PCI_PRODUCT_LSI_FC919X:
384 case PCI_PRODUCT_LSI_FC7X04X:
387 case PCI_PRODUCT_LSI_SAS1064:
388 case PCI_PRODUCT_LSI_SAS1064A:
389 case PCI_PRODUCT_LSI_SAS1064E:
390 case PCI_PRODUCT_LSI_SAS1066:
391 case PCI_PRODUCT_LSI_SAS1066E:
392 case PCI_PRODUCT_LSI_SAS1068:
393 case PCI_PRODUCT_LSI_SAS1068E:
394 case PCI_PRODUCT_LSI_SAS1078:
402 mpt->unit = device_get_unit(dev);
403 mpt->raid_resync_rate = MPT_RAID_RESYNC_RATE_DEFAULT;
404 mpt->raid_mwce_setting = MPT_RAID_MWCE_DEFAULT;
405 mpt->raid_queue_depth = MPT_RAID_QUEUE_DEPTH_DEFAULT;
406 mpt->verbose = MPT_PRT_NONE;
407 mpt->role = MPT_ROLE_NONE;
408 mpt_set_options(mpt);
409 if (mpt->verbose == MPT_PRT_NONE) {
410 mpt->verbose = MPT_PRT_WARN;
411 /* Print INFO level (if any) if bootverbose is set */
412 mpt->verbose += (bootverbose != 0)? 1 : 0;
414 /* Make sure memory access decoders are enabled */
415 cmd = pci_read_config(dev, PCIR_COMMAND, 2);
416 if ((cmd & PCIM_CMD_MEMEN) == 0) {
417 device_printf(dev, "Memory accesses disabled");
422 * Make sure that SERR, PERR, WRITE INVALIDATE and BUSMASTER are set.
425 PCIM_CMD_SERRESPEN | PCIM_CMD_PERRESPEN |
426 PCIM_CMD_BUSMASTEREN | PCIM_CMD_MWRICEN;
427 pci_write_config(dev, PCIR_COMMAND, cmd, 2);
430 * Make sure we've disabled the ROM.
432 data = pci_read_config(dev, PCIR_BIOS, 4);
434 pci_write_config(dev, PCIR_BIOS, data, 4);
437 * Is this part a dual?
438 * If so, link with our partner (around yet)
440 if ((pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC929 ||
441 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_FC7X04X ||
442 (pci_get_device(dev) & ~1) == PCI_PRODUCT_LSI_1030) {
447 * Set up register access. PIO mode is required for
448 * certain reset operations (but must be disabled for
449 * some cards otherwise).
451 mpt->pci_pio_rid = PCIR_BAR(MPT_IO_BAR);
452 mpt->pci_pio_reg = bus_alloc_resource(dev, SYS_RES_IOPORT,
453 &mpt->pci_pio_rid, 0, ~0, 0, RF_ACTIVE);
454 if (mpt->pci_pio_reg == NULL) {
455 device_printf(dev, "unable to map registers in PIO mode\n");
458 mpt->pci_pio_st = rman_get_bustag(mpt->pci_pio_reg);
459 mpt->pci_pio_sh = rman_get_bushandle(mpt->pci_pio_reg);
461 /* Allocate kernel virtual memory for the 9x9's Mem0 region */
462 mpt->pci_mem_rid = PCIR_BAR(MPT_MEM_BAR);
463 mpt->pci_reg = bus_alloc_resource(dev, SYS_RES_MEMORY,
464 &mpt->pci_mem_rid, 0, ~0, 0, RF_ACTIVE);
465 if (mpt->pci_reg == NULL) {
466 device_printf(dev, "Unable to memory map registers.\n");
468 device_printf(dev, "Giving Up.\n");
471 device_printf(dev, "Falling back to PIO mode.\n");
472 mpt->pci_st = mpt->pci_pio_st;
473 mpt->pci_sh = mpt->pci_pio_sh;
475 mpt->pci_st = rman_get_bustag(mpt->pci_reg);
476 mpt->pci_sh = rman_get_bushandle(mpt->pci_reg);
479 /* Get a handle to the interrupt */
481 #if __FreeBSD_version < 500000
482 mpt->pci_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &iqd, 0, ~0, 1,
483 RF_ACTIVE | RF_SHAREABLE);
485 mpt->pci_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &iqd,
486 RF_ACTIVE | RF_SHAREABLE);
488 if (mpt->pci_irq == NULL) {
489 device_printf(dev, "could not allocate interrupt\n");
495 /* Disable interrupts at the part */
496 mpt_disable_ints(mpt);
498 /* Register the interrupt handler */
499 if (bus_setup_intr(dev, mpt->pci_irq, MPT_IFLAGS, mpt_pci_intr,
501 device_printf(dev, "could not setup interrupt\n");
505 /* Allocate dma memory */
506 /* XXX JGibbs -Should really be done based on IOCFacts. */
507 if (mpt_dma_mem_alloc(mpt)) {
508 mpt_prt(mpt, "Could not allocate DMA memory\n");
513 * Save the PCI config register values
515 * Hard resets are known to screw up the BAR for diagnostic
516 * memory accesses (Mem1).
518 * Using Mem1 is known to make the chip stop responding to
519 * configuration space transfers, so we need to save it now
522 mpt_read_config_regs(mpt);
525 * Disable PIO until we need it
527 pci_disable_io(dev, SYS_RES_IOPORT);
529 /* Initialize the hardware */
530 if (mpt->disabled == 0) {
532 if (mpt_attach(mpt) != 0) {
538 mpt_prt(mpt, "device disabled at user request\n");
542 mpt->eh = EVENTHANDLER_REGISTER(shutdown_post_sync, mpt_pci_shutdown,
543 dev, SHUTDOWN_PRI_DEFAULT);
545 if (mpt->eh == NULL) {
546 mpt_prt(mpt, "shutdown event registration failed\n");
548 (void) mpt_detach(mpt);
552 KASSERT(MPT_OWNED(mpt) == 0, ("leaving attach with device locked"));
556 mpt_dma_mem_free(mpt);
557 mpt_free_bus_resources(mpt);
558 mpt_unlink_peer(mpt);
560 MPT_LOCK_DESTROY(mpt);
563 * but return zero to preserve unit numbering
572 mpt_free_bus_resources(struct mpt_softc *mpt)
575 bus_teardown_intr(mpt->dev, mpt->pci_irq, mpt->ih);
580 bus_release_resource(mpt->dev, SYS_RES_IRQ, 0, mpt->pci_irq);
584 if (mpt->pci_pio_reg) {
585 bus_release_resource(mpt->dev, SYS_RES_IOPORT, mpt->pci_pio_rid,
587 mpt->pci_pio_reg = 0;
590 bus_release_resource(mpt->dev, SYS_RES_MEMORY, mpt->pci_mem_rid,
594 MPT_LOCK_DESTROY(mpt);
599 * Disconnect ourselves from the system.
602 mpt_pci_detach(device_t dev)
604 struct mpt_softc *mpt;
606 mpt = (struct mpt_softc*)device_get_softc(dev);
610 mpt_disable_ints(mpt);
612 mpt_reset(mpt, /*reinit*/FALSE);
613 mpt_dma_mem_free(mpt);
614 mpt_free_bus_resources(mpt);
615 mpt_raid_free_mem(mpt);
616 if (mpt->eh != NULL) {
617 EVENTHANDLER_DEREGISTER(shutdown_final, mpt->eh);
626 * Disable the hardware
629 mpt_pci_shutdown(device_t dev)
631 struct mpt_softc *mpt;
633 mpt = (struct mpt_softc *)device_get_softc(dev);
637 r = mpt_shutdown(mpt);
645 mpt_dma_mem_alloc(struct mpt_softc *mpt)
651 struct mpt_map_info mi;
653 /* Check if we alreay have allocated the reply memory */
654 if (mpt->reply_phys != 0) {
658 len = sizeof (request_t) * MPT_MAX_REQUESTS(mpt);
660 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK);
661 if (mpt->request_pool == NULL) {
662 mpt_prt(mpt, "cannot allocate request pool\n");
665 memset(mpt->request_pool, 0, len);
667 mpt->request_pool = (request_t *)malloc(len, M_DEVBUF, M_WAITOK|M_ZERO);
668 if (mpt->request_pool == NULL) {
669 mpt_prt(mpt, "cannot allocate request pool\n");
675 * Create a parent dma tag for this device.
677 * Align at byte boundaries,
678 * Limit to 32-bit addressing for request/reply queues.
680 if (mpt_dma_tag_create(mpt, /*parent*/NULL, /*alignment*/1,
681 /*boundary*/0, /*lowaddr*/BUS_SPACE_MAXADDR,
682 /*highaddr*/BUS_SPACE_MAXADDR, /*filter*/NULL, /*filterarg*/NULL,
683 /*maxsize*/BUS_SPACE_MAXSIZE_32BIT,
684 /*nsegments*/BUS_SPACE_MAXSIZE_32BIT,
685 /*maxsegsz*/BUS_SPACE_UNRESTRICTED, /*flags*/0,
686 &mpt->parent_dmat) != 0) {
687 mpt_prt(mpt, "cannot create parent dma tag\n");
691 /* Create a child tag for reply buffers */
692 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0,
693 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
694 NULL, NULL, 2 * PAGE_SIZE, 1, BUS_SPACE_MAXSIZE_32BIT, 0,
695 &mpt->reply_dmat) != 0) {
696 mpt_prt(mpt, "cannot create a dma tag for replies\n");
700 /* Allocate some DMA accessable memory for replies */
701 if (bus_dmamem_alloc(mpt->reply_dmat, (void **)&mpt->reply,
702 BUS_DMA_NOWAIT, &mpt->reply_dmap) != 0) {
703 mpt_prt(mpt, "cannot allocate %lu bytes of reply memory\n",
704 (u_long) (2 * PAGE_SIZE));
711 /* Load and lock it into "bus space" */
712 bus_dmamap_load(mpt->reply_dmat, mpt->reply_dmap, mpt->reply,
713 2 * PAGE_SIZE, mpt_map_rquest, &mi, 0);
716 mpt_prt(mpt, "error %d loading dma map for DMA reply queue\n",
720 mpt->reply_phys = mi.phys;
722 /* Create a child tag for data buffers */
725 * XXX: we should say that nsegs is 'unrestricted, but that
726 * XXX: tickles a horrible bug in the busdma code. Instead,
727 * XXX: we'll derive a reasonable segment limit from MAXPHYS
729 nsegs = (MAXPHYS / PAGE_SIZE) + 1;
730 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, 1,
731 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR,
732 NULL, NULL, MAXBSIZE, nsegs, BUS_SPACE_MAXSIZE_32BIT, 0,
733 &mpt->buffer_dmat) != 0) {
734 mpt_prt(mpt, "cannot create a dma tag for data buffers\n");
738 /* Create a child tag for request buffers */
739 if (mpt_dma_tag_create(mpt, mpt->parent_dmat, PAGE_SIZE, 0,
740 BUS_SPACE_MAXADDR_32BIT, BUS_SPACE_MAXADDR,
741 NULL, NULL, MPT_REQ_MEM_SIZE(mpt), 1, BUS_SPACE_MAXSIZE_32BIT, 0,
742 &mpt->request_dmat) != 0) {
743 mpt_prt(mpt, "cannot create a dma tag for requests\n");
747 /* Allocate some DMA accessable memory for requests */
748 if (bus_dmamem_alloc(mpt->request_dmat, (void **)&mpt->request,
749 BUS_DMA_NOWAIT, &mpt->request_dmap) != 0) {
750 mpt_prt(mpt, "cannot allocate %d bytes of request memory\n",
751 MPT_REQ_MEM_SIZE(mpt));
758 /* Load and lock it into "bus space" */
759 bus_dmamap_load(mpt->request_dmat, mpt->request_dmap, mpt->request,
760 MPT_REQ_MEM_SIZE(mpt), mpt_map_rquest, &mi, 0);
763 mpt_prt(mpt, "error %d loading dma map for DMA request queue\n",
767 mpt->request_phys = mi.phys;
770 * Now create per-request dma maps
773 pptr = mpt->request_phys;
775 end = pptr + MPT_REQ_MEM_SIZE(mpt);
777 request_t *req = &mpt->request_pool[i];
780 /* Store location of Request Data */
781 req->req_pbuf = pptr;
782 req->req_vbuf = vptr;
784 pptr += MPT_REQUEST_AREA;
785 vptr += MPT_REQUEST_AREA;
787 req->sense_pbuf = (pptr - MPT_SENSE_SIZE);
788 req->sense_vbuf = (vptr - MPT_SENSE_SIZE);
790 error = bus_dmamap_create(mpt->buffer_dmat, 0, &req->dmap);
792 mpt_prt(mpt, "error %d creating per-cmd DMA maps\n",
803 /* Deallocate memory that was allocated by mpt_dma_mem_alloc
806 mpt_dma_mem_free(struct mpt_softc *mpt)
810 /* Make sure we aren't double destroying */
811 if (mpt->reply_dmat == 0) {
812 mpt_lprt(mpt, MPT_PRT_DEBUG, "already released dma memory\n");
816 for (i = 0; i < MPT_MAX_REQUESTS(mpt); i++) {
817 bus_dmamap_destroy(mpt->buffer_dmat, mpt->request_pool[i].dmap);
819 bus_dmamap_unload(mpt->request_dmat, mpt->request_dmap);
820 bus_dmamem_free(mpt->request_dmat, mpt->request, mpt->request_dmap);
821 bus_dma_tag_destroy(mpt->request_dmat);
822 bus_dma_tag_destroy(mpt->buffer_dmat);
823 bus_dmamap_unload(mpt->reply_dmat, mpt->reply_dmap);
824 bus_dmamem_free(mpt->reply_dmat, mpt->reply, mpt->reply_dmap);
825 bus_dma_tag_destroy(mpt->reply_dmat);
826 bus_dma_tag_destroy(mpt->parent_dmat);
828 free(mpt->request_pool, M_DEVBUF);
829 mpt->request_pool = 0;
835 /* Reads modifiable (via PCI transactions) config registers */
837 mpt_read_config_regs(struct mpt_softc *mpt)
839 mpt->pci_cfg.Command = pci_read_config(mpt->dev, PCIR_COMMAND, 2);
840 mpt->pci_cfg.LatencyTimer_LineSize =
841 pci_read_config(mpt->dev, PCIR_CACHELNSZ, 2);
842 mpt->pci_cfg.IO_BAR = pci_read_config(mpt->dev, PCIR_BAR(0), 4);
843 mpt->pci_cfg.Mem0_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(1), 4);
844 mpt->pci_cfg.Mem0_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(2), 4);
845 mpt->pci_cfg.Mem1_BAR[0] = pci_read_config(mpt->dev, PCIR_BAR(3), 4);
846 mpt->pci_cfg.Mem1_BAR[1] = pci_read_config(mpt->dev, PCIR_BAR(4), 4);
847 mpt->pci_cfg.ROM_BAR = pci_read_config(mpt->dev, PCIR_BIOS, 4);
848 mpt->pci_cfg.IntLine = pci_read_config(mpt->dev, PCIR_INTLINE, 1);
849 mpt->pci_cfg.PMCSR = pci_read_config(mpt->dev, 0x44, 4);
852 /* Sets modifiable config registers */
854 mpt_set_config_regs(struct mpt_softc *mpt)
858 #define MPT_CHECK(reg, offset, size) \
859 val = pci_read_config(mpt->dev, offset, size); \
860 if (mpt->pci_cfg.reg != val) { \
862 "Restoring " #reg " to 0x%X from 0x%X\n", \
863 mpt->pci_cfg.reg, val); \
866 if (mpt->verbose >= MPT_PRT_DEBUG) {
867 MPT_CHECK(Command, PCIR_COMMAND, 2);
868 MPT_CHECK(LatencyTimer_LineSize, PCIR_CACHELNSZ, 2);
869 MPT_CHECK(IO_BAR, PCIR_BAR(0), 4);
870 MPT_CHECK(Mem0_BAR[0], PCIR_BAR(1), 4);
871 MPT_CHECK(Mem0_BAR[1], PCIR_BAR(2), 4);
872 MPT_CHECK(Mem1_BAR[0], PCIR_BAR(3), 4);
873 MPT_CHECK(Mem1_BAR[1], PCIR_BAR(4), 4);
874 MPT_CHECK(ROM_BAR, PCIR_BIOS, 4);
875 MPT_CHECK(IntLine, PCIR_INTLINE, 1);
876 MPT_CHECK(PMCSR, 0x44, 4);
880 pci_write_config(mpt->dev, PCIR_COMMAND, mpt->pci_cfg.Command, 2);
881 pci_write_config(mpt->dev, PCIR_CACHELNSZ,
882 mpt->pci_cfg.LatencyTimer_LineSize, 2);
883 pci_write_config(mpt->dev, PCIR_BAR(0), mpt->pci_cfg.IO_BAR, 4);
884 pci_write_config(mpt->dev, PCIR_BAR(1), mpt->pci_cfg.Mem0_BAR[0], 4);
885 pci_write_config(mpt->dev, PCIR_BAR(2), mpt->pci_cfg.Mem0_BAR[1], 4);
886 pci_write_config(mpt->dev, PCIR_BAR(3), mpt->pci_cfg.Mem1_BAR[0], 4);
887 pci_write_config(mpt->dev, PCIR_BAR(4), mpt->pci_cfg.Mem1_BAR[1], 4);
888 pci_write_config(mpt->dev, PCIR_BIOS, mpt->pci_cfg.ROM_BAR, 4);
889 pci_write_config(mpt->dev, PCIR_INTLINE, mpt->pci_cfg.IntLine, 1);
890 pci_write_config(mpt->dev, 0x44, mpt->pci_cfg.PMCSR, 4);
894 mpt_pci_intr(void *arg)
896 struct mpt_softc *mpt;
898 mpt = (struct mpt_softc *)arg;