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aac_pci.c revision 1.32
      1 /*	$NetBSD: aac_pci.c,v 1.32 2011/02/18 22:54:27 jmcneill Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 2002 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Andrew Doran.
      9  *
     10  * Redistribution and use in source and binary forms, with or without
     11  * modification, are permitted provided that the following conditions
     12  * are met:
     13  * 1. Redistributions of source code must retain the above copyright
     14  *    notice, this list of conditions and the following disclaimer.
     15  * 2. Redistributions in binary form must reproduce the above copyright
     16  *    notice, this list of conditions and the following disclaimer in the
     17  *    documentation and/or other materials provided with the distribution.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     20  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     21  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     22  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     23  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     24  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     25  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     26  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     27  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     28  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     29  * POSSIBILITY OF SUCH DAMAGE.
     30  */
     31 
     32 /*-
     33  * Copyright (c) 2000 Michael Smith
     34  * Copyright (c) 2000 BSDi
     35  * Copyright (c) 2000 Niklas Hallqvist
     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
     40  * are 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 the above copyright
     44  *    notice, this list of conditions and the following disclaimer in the
     45  *    documentation and/or other materials provided with the distribution.
     46  *
     47  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
     48  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     49  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     50  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
     51  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     52  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     53  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     54  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     55  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     56  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     57  * SUCH DAMAGE.
     58  *
     59  * from FreeBSD: aac_pci.c,v 1.1 2000/09/13 03:20:34 msmith Exp
     60  * via OpenBSD: aac_pci.c,v 1.7 2002/03/14 01:26:58 millert Exp
     61  */
     62 
     63 /*
     64  * PCI front-end for the `aac' driver.
     65  */
     66 
     67 #include <sys/cdefs.h>
     68 __KERNEL_RCSID(0, "$NetBSD: aac_pci.c,v 1.32 2011/02/18 22:54:27 jmcneill Exp $");
     69 
     70 #include <sys/param.h>
     71 #include <sys/systm.h>
     72 #include <sys/device.h>
     73 #include <sys/kernel.h>
     74 #include <sys/malloc.h>
     75 #include <sys/queue.h>
     76 
     77 #include <sys/bus.h>
     78 #include <machine/endian.h>
     79 #include <sys/intr.h>
     80 
     81 #include <dev/pci/pcidevs.h>
     82 #include <dev/pci/pcireg.h>
     83 #include <dev/pci/pcivar.h>
     84 
     85 #include <dev/ic/aacreg.h>
     86 #include <dev/ic/aacvar.h>
     87 
     88 struct aac_pci_softc {
     89 	struct aac_softc	sc_aac;
     90 	pci_chipset_tag_t	sc_pc;
     91 	pci_intr_handle_t	sc_ih;
     92 };
     93 
     94 /* i960Rx interface */
     95 static int	aac_rx_get_fwstatus(struct aac_softc *);
     96 static void	aac_rx_qnotify(struct aac_softc *, int);
     97 static int	aac_rx_get_istatus(struct aac_softc *);
     98 static void	aac_rx_clear_istatus(struct aac_softc *, int);
     99 static void	aac_rx_set_mailbox(struct aac_softc *, u_int32_t, u_int32_t,
    100 			   u_int32_t, u_int32_t, u_int32_t);
    101 static uint32_t aac_rx_get_mailbox(struct aac_softc *, int);
    102 static void	aac_rx_set_interrupts(struct aac_softc *, int);
    103 static int	aac_rx_send_command(struct aac_softc *, struct aac_ccb *);
    104 static int	aac_rx_get_outb_queue(struct aac_softc *);
    105 static void	aac_rx_set_outb_queue(struct aac_softc *, int);
    106 
    107 /* StrongARM interface */
    108 static int	aac_sa_get_fwstatus(struct aac_softc *);
    109 static void	aac_sa_qnotify(struct aac_softc *, int);
    110 static int	aac_sa_get_istatus(struct aac_softc *);
    111 static void	aac_sa_clear_istatus(struct aac_softc *, int);
    112 static void	aac_sa_set_mailbox(struct aac_softc *, u_int32_t, u_int32_t,
    113 			   u_int32_t, u_int32_t, u_int32_t);
    114 static uint32_t aac_sa_get_mailbox(struct aac_softc *, int);
    115 static void	aac_sa_set_interrupts(struct aac_softc *, int);
    116 
    117 /* Rocket/MIPS interface */
    118 static int	aac_rkt_get_fwstatus(struct aac_softc *);
    119 static void	aac_rkt_qnotify(struct aac_softc *, int);
    120 static int	aac_rkt_get_istatus(struct aac_softc *);
    121 static void	aac_rkt_clear_istatus(struct aac_softc *, int);
    122 static void	aac_rkt_set_mailbox(struct aac_softc *, u_int32_t, u_int32_t,
    123 			   u_int32_t, u_int32_t, u_int32_t);
    124 static uint32_t aac_rkt_get_mailbox(struct aac_softc *, int);
    125 static void	aac_rkt_set_interrupts(struct aac_softc *, int);
    126 static int	aac_rkt_send_command(struct aac_softc *, struct aac_ccb *);
    127 static int	aac_rkt_get_outb_queue(struct aac_softc *);
    128 static void	aac_rkt_set_outb_queue(struct aac_softc *, int);
    129 
    130 static const struct aac_interface aac_rx_interface = {
    131 	aac_rx_get_fwstatus,
    132 	aac_rx_qnotify,
    133 	aac_rx_get_istatus,
    134 	aac_rx_clear_istatus,
    135 	aac_rx_set_mailbox,
    136 	aac_rx_get_mailbox,
    137 	aac_rx_set_interrupts,
    138 	aac_rx_send_command,
    139 	aac_rx_get_outb_queue,
    140 	aac_rx_set_outb_queue
    141 };
    142 
    143 static const struct aac_interface aac_sa_interface = {
    144 	aac_sa_get_fwstatus,
    145 	aac_sa_qnotify,
    146 	aac_sa_get_istatus,
    147 	aac_sa_clear_istatus,
    148 	aac_sa_set_mailbox,
    149 	aac_sa_get_mailbox,
    150 	aac_sa_set_interrupts,
    151 	NULL, NULL, NULL
    152 };
    153 
    154 static const struct aac_interface aac_rkt_interface = {
    155 	aac_rkt_get_fwstatus,
    156 	aac_rkt_qnotify,
    157 	aac_rkt_get_istatus,
    158 	aac_rkt_clear_istatus,
    159 	aac_rkt_set_mailbox,
    160 	aac_rkt_get_mailbox,
    161 	aac_rkt_set_interrupts,
    162 	aac_rkt_send_command,
    163 	aac_rkt_get_outb_queue,
    164 	aac_rkt_set_outb_queue
    165 };
    166 
    167 static struct aac_ident {
    168 	u_short	vendor;
    169 	u_short	device;
    170 	u_short	subvendor;
    171 	u_short	subdevice;
    172 	u_short	hwif;
    173 	u_short	quirks;
    174 	const char	*prodstr;
    175 } const aac_ident[] = {
    176 	{
    177 		PCI_VENDOR_DELL,
    178 		PCI_PRODUCT_DELL_PERC_2SI,
    179 		PCI_VENDOR_DELL,
    180 		PCI_PRODUCT_DELL_PERC_2SI,
    181 		AAC_HWIF_I960RX,
    182 		0,
    183 		"Dell PERC 2/Si"
    184 	},
    185 	{
    186 		PCI_VENDOR_DELL,
    187 		PCI_PRODUCT_DELL_PERC_3DI,
    188 		PCI_VENDOR_DELL,
    189 		PCI_PRODUCT_DELL_PERC_3DI,
    190 		AAC_HWIF_I960RX,
    191 		0,
    192 		"Dell PERC 3/Di"
    193 	},
    194 	{
    195 		PCI_VENDOR_DELL,
    196 		PCI_PRODUCT_DELL_PERC_3DI,
    197 		PCI_VENDOR_DELL,
    198 		PCI_PRODUCT_DELL_PERC_3DI_SUB2,
    199 		AAC_HWIF_I960RX,
    200 		0,
    201 		"Dell PERC 3/Di"
    202 	},
    203 	{
    204 		PCI_VENDOR_DELL,
    205 		PCI_PRODUCT_DELL_PERC_3DI,
    206 		PCI_VENDOR_DELL,
    207 		PCI_PRODUCT_DELL_PERC_3DI_SUB3,
    208 		AAC_HWIF_I960RX,
    209 		0,
    210 		"Dell PERC 3/Di"
    211 	},
    212 	{
    213 		PCI_VENDOR_DELL,
    214 		PCI_PRODUCT_DELL_PERC_3DI_2,
    215 		PCI_VENDOR_DELL,
    216 		PCI_PRODUCT_DELL_PERC_3DI_2_SUB,
    217 		AAC_HWIF_I960RX,
    218 		0,
    219 		"Dell PERC 3/Di"
    220 	},
    221         {
    222 		PCI_VENDOR_DELL,
    223 		PCI_PRODUCT_DELL_PERC_3DI_3,
    224 		PCI_VENDOR_DELL,
    225 		PCI_PRODUCT_DELL_PERC_3DI_3_SUB,
    226 		AAC_HWIF_I960RX,
    227 		0,
    228 		"Dell PERC 3/Di"
    229 	},
    230 	{
    231 		PCI_VENDOR_DELL,
    232 		PCI_PRODUCT_DELL_PERC_3DI_3,
    233 		PCI_VENDOR_DELL,
    234 		PCI_PRODUCT_DELL_PERC_3DI_3_SUB2,
    235 		AAC_HWIF_I960RX,
    236 		0,
    237 		"Dell PERC 3/Di"
    238 	},
    239 	{
    240 		PCI_VENDOR_DELL,
    241 		PCI_PRODUCT_DELL_PERC_3DI_3,
    242 		PCI_VENDOR_DELL,
    243 		PCI_PRODUCT_DELL_PERC_3DI_3_SUB3,
    244 		AAC_HWIF_I960RX,
    245 		0,
    246 		"Dell PERC 3/Di"
    247 	},
    248 	{
    249 		PCI_VENDOR_DELL,
    250 		PCI_PRODUCT_DELL_PERC_3SI,
    251 		PCI_VENDOR_DELL,
    252 		PCI_PRODUCT_DELL_PERC_3SI,
    253 		AAC_HWIF_I960RX,
    254 		0,
    255 		"Dell PERC 3/Si"
    256 	},
    257 	{
    258 		PCI_VENDOR_DELL,
    259 		PCI_PRODUCT_DELL_PERC_3SI_2,
    260 		PCI_VENDOR_DELL,
    261 		PCI_PRODUCT_DELL_PERC_3SI_2_SUB,
    262 		AAC_HWIF_I960RX,
    263 		0,
    264 		"Dell PERC 3/Si"
    265 	},
    266 	{
    267 		PCI_VENDOR_ADP2,
    268 		PCI_PRODUCT_ADP2_ASR2200S,
    269 		PCI_VENDOR_DELL,
    270 		PCI_PRODUCT_DELL_CERC_1_5,
    271 		AAC_HWIF_I960RX,
    272 		AAC_QUIRK_NO4GB,
    273 		"Dell CERC SATA RAID 1.5/6ch"
    274 	},
    275 	{
    276 		PCI_VENDOR_ADP2,
    277 		PCI_PRODUCT_ADP2_AAC2622,
    278 		PCI_VENDOR_ADP2,
    279 		PCI_PRODUCT_ADP2_AAC2622,
    280 		AAC_HWIF_I960RX,
    281 		0,
    282 		"Adaptec ADP-2622"
    283 	},
    284 	{
    285 		PCI_VENDOR_ADP2,
    286 		PCI_PRODUCT_ADP2_ASR2200S,
    287 		PCI_VENDOR_ADP2,
    288 		PCI_PRODUCT_ADP2_ASR2200S_SUB2M,
    289 		AAC_HWIF_I960RX,
    290 		AAC_QUIRK_NO4GB | AAC_QUIRK_256FIBS,
    291 		"Adaptec ASR-2200S"
    292 	},
    293 	{
    294 		PCI_VENDOR_ADP2,
    295 		PCI_PRODUCT_ADP2_ASR2200S,
    296 		PCI_VENDOR_DELL,
    297 		PCI_PRODUCT_ADP2_ASR2200S_SUB2M,
    298 		AAC_HWIF_I960RX,
    299 		AAC_QUIRK_NO4GB | AAC_QUIRK_256FIBS,
    300 		"Dell PERC 320/DC"
    301 	},
    302 	{
    303 		PCI_VENDOR_ADP2,
    304 		PCI_PRODUCT_ADP2_ASR2200S,
    305 		PCI_VENDOR_ADP2,
    306 		PCI_PRODUCT_ADP2_ASR2200S,
    307 		AAC_HWIF_I960RX,
    308 		AAC_QUIRK_NO4GB | AAC_QUIRK_256FIBS,
    309 		"Adaptec ASR-2200S"
    310 	},
    311 	{
    312 		PCI_VENDOR_ADP2,
    313 		PCI_PRODUCT_ADP2_ASR2200S,
    314 		PCI_VENDOR_ADP2,
    315 		PCI_PRODUCT_ADP2_AAR2810SA,
    316 		AAC_HWIF_I960RX,
    317 		AAC_QUIRK_NO4GB,
    318 		"Adaptec AAR-2810SA"
    319 	},
    320 	{
    321 		PCI_VENDOR_ADP2,
    322 		PCI_PRODUCT_ADP2_ASR2200S,
    323 		PCI_VENDOR_ADP2,
    324 		PCI_PRODUCT_ADP2_ASR2120S,
    325 		AAC_HWIF_I960RX,
    326 		AAC_QUIRK_NO4GB | AAC_QUIRK_256FIBS,
    327 		"Adaptec ASR-2120S"
    328 	},
    329 	{
    330 		PCI_VENDOR_ADP2,
    331 		PCI_PRODUCT_ADP2_ASR2200S,
    332 		PCI_VENDOR_ADP2,
    333 		PCI_PRODUCT_ADP2_ASR2410SA,
    334 		AAC_HWIF_I960RX,
    335 		AAC_QUIRK_NO4GB,
    336 		"Adaptec ASR-2410SA"
    337 	},
    338 	{
    339 		PCI_VENDOR_ADP2,
    340 		PCI_PRODUCT_ADP2_ASR2200S,
    341 		PCI_VENDOR_HP,
    342 		PCI_PRODUCT_ADP2_HP_M110_G2,
    343 		AAC_HWIF_I960RX,
    344 		AAC_QUIRK_NO4GB,
    345 		"HP ML110 G2 (Adaptec ASR-2610SA)"
    346 	},
    347 	{
    348 		PCI_VENDOR_ADP2,
    349 		PCI_PRODUCT_ADP2_ASR2120S,
    350 		PCI_VENDOR_IBM,
    351 		PCI_PRODUCT_IBM_SERVERAID8K,
    352 		AAC_HWIF_RKT,
    353 		0,
    354 		"IBM ServeRAID 8k"
    355 	},
    356 	{	PCI_VENDOR_ADP2,
    357 		PCI_PRODUCT_ADP2_ASR2200S,
    358 		PCI_VENDOR_ADP2,
    359 		PCI_PRODUCT_ADP2_3405,
    360 		AAC_HWIF_I960RX,
    361 		0,
    362 		"Adaptec RAID 3405"
    363 	},
    364 	{
    365 		PCI_VENDOR_DEC,
    366 		PCI_PRODUCT_DEC_21554,
    367 		PCI_VENDOR_ADP2,
    368 		PCI_PRODUCT_ADP2_AAC364,
    369 		AAC_HWIF_STRONGARM,
    370 		0,
    371 		"Adaptec AAC-364"
    372 	},
    373 	{
    374 		PCI_VENDOR_DEC,
    375 		PCI_PRODUCT_DEC_21554,
    376 		PCI_VENDOR_ADP2,
    377 		PCI_PRODUCT_ADP2_ASR5400S,
    378 		AAC_HWIF_STRONGARM,
    379 		AAC_QUIRK_BROKEN_MMAP,
    380 		"Adaptec ASR-5400S"
    381 	},
    382 	{
    383 		PCI_VENDOR_DEC,
    384 		PCI_PRODUCT_DEC_21554,
    385 		PCI_VENDOR_ADP2,
    386 		PCI_PRODUCT_ADP2_PERC_2QC,
    387 		AAC_HWIF_STRONGARM,
    388 		AAC_QUIRK_PERC2QC,
    389 		"Dell PERC 2/QC"
    390 	},
    391 	{
    392 		PCI_VENDOR_DEC,
    393 		PCI_PRODUCT_DEC_21554,
    394 		PCI_VENDOR_ADP2,
    395 		PCI_PRODUCT_ADP2_PERC_3QC,
    396 		AAC_HWIF_STRONGARM,
    397 		0,
    398 		"Dell PERC 3/QC"
    399 	},
    400 	{
    401 		PCI_VENDOR_DEC,
    402 		PCI_PRODUCT_DEC_21554,
    403 		PCI_VENDOR_HP,
    404 		PCI_PRODUCT_HP_NETRAID_4M,
    405 		AAC_HWIF_STRONGARM,
    406 		0,
    407 		"HP NetRAID-4M"
    408 	},
    409 	{	0x9005,
    410 		0x0285,
    411 		0x108e,
    412 		0x286,
    413 		AAC_HWIF_I960RX,
    414 		0,
    415 		"SG-XPCIESAS-R-IN"
    416 	},
    417 };
    418 
    419 static const struct aac_ident *
    420 aac_find_ident(struct pci_attach_args *pa)
    421 {
    422 	const struct aac_ident *m, *mm;
    423 	u_int32_t subsysid;
    424 
    425 	m = aac_ident;
    426 	mm = aac_ident + (sizeof(aac_ident) / sizeof(aac_ident[0]));
    427 
    428 	while (m < mm) {
    429 		if (m->vendor == PCI_VENDOR(pa->pa_id) &&
    430 		    m->device == PCI_PRODUCT(pa->pa_id)) {
    431 			subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag,
    432 			    PCI_SUBSYS_ID_REG);
    433 			if (m->subvendor == PCI_VENDOR(subsysid) &&
    434 			    m->subdevice == PCI_PRODUCT(subsysid))
    435 				return (m);
    436 		}
    437 		m++;
    438 	}
    439 
    440 	return (NULL);
    441 }
    442 
    443 static int
    444 aac_pci_intr_set(struct aac_softc *sc, int (*hand)(void*), void *arg)
    445 {
    446 	struct aac_pci_softc	*pcisc;
    447 
    448 	pcisc = (struct aac_pci_softc *) sc;
    449 
    450 	pci_intr_disestablish(pcisc->sc_pc, sc->sc_ih);
    451 	sc->sc_ih = pci_intr_establish(pcisc->sc_pc, pcisc->sc_ih,
    452 				       IPL_BIO, hand, arg);
    453 	if (sc->sc_ih == NULL) {
    454 		return ENXIO;
    455 	}
    456 	return 0;
    457 }
    458 
    459 static int
    460 aac_pci_match(device_t parent, cfdata_t match, void *aux)
    461 {
    462 	struct pci_attach_args *pa;
    463 
    464 	pa = aux;
    465 
    466 	if (PCI_CLASS(pa->pa_class) == PCI_CLASS_I2O)
    467 		return (0);
    468 
    469 	return (aac_find_ident(pa) != NULL);
    470 }
    471 
    472 static void
    473 aac_pci_attach(device_t parent, device_t self, void *aux)
    474 {
    475 	struct pci_attach_args *pa;
    476 	pci_chipset_tag_t pc;
    477 	struct aac_pci_softc *pcisc;
    478 	struct aac_softc *sc;
    479 	u_int16_t command;
    480 	bus_addr_t membase;
    481 	bus_size_t memsize;
    482 	const char *intrstr;
    483 	int state;
    484 	const struct aac_ident *m;
    485 
    486 	pa = aux;
    487 	pc = pa->pa_pc;
    488 	pcisc = device_private(self);
    489 	pcisc->sc_pc = pc;
    490 	sc = &pcisc->sc_aac;
    491 	state = 0;
    492 
    493 	aprint_naive(": RAID controller\n");
    494 	aprint_normal(": ");
    495 
    496 	/*
    497 	 * Verify that the adapter is correctly set up in PCI space.
    498 	 */
    499 	command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    500 	command |= PCI_COMMAND_MASTER_ENABLE;
    501 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    502 	command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    503 	AAC_DPRINTF(AAC_D_MISC, ("pci command status reg 0x08x "));
    504 
    505 	if ((command & PCI_COMMAND_MASTER_ENABLE) == 0) {
    506 		aprint_error("can't enable bus-master feature\n");
    507 		goto bail_out;
    508 	}
    509 
    510 	if ((command & PCI_COMMAND_MEM_ENABLE) == 0) {
    511 		aprint_error("memory window not available\n");
    512 		goto bail_out;
    513 	}
    514 
    515 	/*
    516 	 * Map control/status registers.
    517 	 */
    518 	if (pci_mapreg_map(pa, PCI_MAPREG_START,
    519 	    PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_memt,
    520 	    &sc->sc_memh, &membase, &memsize)) {
    521 		aprint_error("can't find mem space\n");
    522 		goto bail_out;
    523 	}
    524 	state++;
    525 
    526 	if (pci_intr_map(pa, &pcisc->sc_ih)) {
    527 		aprint_error("couldn't map interrupt\n");
    528 		goto bail_out;
    529 	}
    530 	intrstr = pci_intr_string(pc, pcisc->sc_ih);
    531 	sc->sc_ih = pci_intr_establish(pc, pcisc->sc_ih, IPL_BIO, aac_intr, sc);
    532 	if (sc->sc_ih == NULL) {
    533 		aprint_error("couldn't establish interrupt");
    534 		if (intrstr != NULL)
    535 			aprint_error(" at %s", intrstr);
    536 		aprint_error("\n");
    537 		goto bail_out;
    538 	}
    539 	state++;
    540 
    541 	sc->sc_dmat = pa->pa_dmat;
    542 
    543 	m = aac_find_ident(pa);
    544 	aprint_normal("%s\n", m->prodstr);
    545 	if (intrstr != NULL)
    546 		aprint_normal_dev(&sc->sc_dv, "interrupting at %s\n",
    547 		    intrstr);
    548 
    549 	sc->sc_hwif = m->hwif;
    550 	sc->sc_quirks = m->quirks;
    551 	switch (sc->sc_hwif) {
    552 		case AAC_HWIF_I960RX:
    553 			AAC_DPRINTF(AAC_D_MISC,
    554 			    ("set hardware up for i960Rx"));
    555 			sc->sc_if = aac_rx_interface;
    556 			break;
    557 
    558 		case AAC_HWIF_STRONGARM:
    559 			AAC_DPRINTF(AAC_D_MISC,
    560 			    ("set hardware up for StrongARM"));
    561 			sc->sc_if = aac_sa_interface;
    562 			break;
    563 
    564 		case AAC_HWIF_RKT:
    565 			AAC_DPRINTF(AAC_D_MISC,
    566 			    ("set hardware up for MIPS/Rocket"));
    567 			sc->sc_if = aac_rkt_interface;
    568 			break;
    569 	}
    570 	sc->sc_regsize = memsize;
    571 	sc->sc_intr_set = aac_pci_intr_set;
    572 
    573 	if (!aac_attach(sc))
    574 		return;
    575 
    576  bail_out:
    577 	if (state > 1)
    578 		pci_intr_disestablish(pc, sc->sc_ih);
    579 	if (state > 0)
    580 		bus_space_unmap(sc->sc_memt, sc->sc_memh, memsize);
    581 }
    582 
    583 CFATTACH_DECL(aac_pci, sizeof(struct aac_pci_softc),
    584     aac_pci_match, aac_pci_attach, NULL, NULL);
    585 
    586 /*
    587  * Read the current firmware status word.
    588  */
    589 static int
    590 aac_sa_get_fwstatus(struct aac_softc *sc)
    591 {
    592 
    593 	return (AAC_GETREG4(sc, AAC_SA_FWSTATUS));
    594 }
    595 
    596 static int
    597 aac_rx_get_fwstatus(struct aac_softc *sc)
    598 {
    599 
    600 	return (AAC_GETREG4(sc, AAC_RX_FWSTATUS));
    601 }
    602 
    603 static int
    604 aac_rkt_get_fwstatus(struct aac_softc *sc)
    605 {
    606 
    607 	return (AAC_GETREG4(sc, AAC_RKT_FWSTATUS));
    608 }
    609 
    610 /*
    611  * Notify the controller of a change in a given queue
    612  */
    613 
    614 static void
    615 aac_sa_qnotify(struct aac_softc *sc, int qbit)
    616 {
    617 
    618 	AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit);
    619 }
    620 
    621 static void
    622 aac_rx_qnotify(struct aac_softc *sc, int qbit)
    623 {
    624 
    625 	AAC_SETREG4(sc, AAC_RX_IDBR, qbit);
    626 }
    627 
    628 static void
    629 aac_rkt_qnotify(struct aac_softc *sc, int qbit)
    630 {
    631 
    632 	AAC_SETREG4(sc, AAC_RKT_IDBR, qbit);
    633 }
    634 
    635 /*
    636  * Get the interrupt reason bits
    637  */
    638 static int
    639 aac_sa_get_istatus(struct aac_softc *sc)
    640 {
    641 
    642 	return (AAC_GETREG2(sc, AAC_SA_DOORBELL0));
    643 }
    644 
    645 static int
    646 aac_rx_get_istatus(struct aac_softc *sc)
    647 {
    648 
    649 	return (AAC_GETREG4(sc, AAC_RX_ODBR));
    650 }
    651 
    652 static int
    653 aac_rkt_get_istatus(struct aac_softc *sc)
    654 {
    655 
    656 	return (AAC_GETREG4(sc, AAC_RKT_ODBR));
    657 }
    658 
    659 /*
    660  * Clear some interrupt reason bits
    661  */
    662 static void
    663 aac_sa_clear_istatus(struct aac_softc *sc, int mask)
    664 {
    665 
    666 	AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask);
    667 }
    668 
    669 static void
    670 aac_rx_clear_istatus(struct aac_softc *sc, int mask)
    671 {
    672 
    673 	AAC_SETREG4(sc, AAC_RX_ODBR, mask);
    674 }
    675 
    676 static void
    677 aac_rkt_clear_istatus(struct aac_softc *sc, int mask)
    678 {
    679 
    680 	AAC_SETREG4(sc, AAC_RKT_ODBR, mask);
    681 }
    682 
    683 /*
    684  * Populate the mailbox and set the command word
    685  */
    686 static void
    687 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command,
    688 		   u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
    689 		   u_int32_t arg3)
    690 {
    691 
    692 	AAC_SETREG4(sc, AAC_SA_MAILBOX, command);
    693 	AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0);
    694 	AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1);
    695 	AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2);
    696 	AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3);
    697 }
    698 
    699 static void
    700 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command,
    701 		   u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
    702 		   u_int32_t arg3)
    703 {
    704 
    705 	AAC_SETREG4(sc, AAC_RX_MAILBOX, command);
    706 	AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0);
    707 	AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1);
    708 	AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2);
    709 	AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3);
    710 }
    711 
    712 static void
    713 aac_rkt_set_mailbox(struct aac_softc *sc, u_int32_t command,
    714 		    u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
    715 		    u_int32_t arg3)
    716 {
    717 
    718 	AAC_SETREG4(sc, AAC_RKT_MAILBOX, command);
    719 	AAC_SETREG4(sc, AAC_RKT_MAILBOX + 4, arg0);
    720 	AAC_SETREG4(sc, AAC_RKT_MAILBOX + 8, arg1);
    721 	AAC_SETREG4(sc, AAC_RKT_MAILBOX + 12, arg2);
    722 	AAC_SETREG4(sc, AAC_RKT_MAILBOX + 16, arg3);
    723 }
    724 
    725 /*
    726  * Fetch the specified mailbox
    727  */
    728 static uint32_t
    729 aac_sa_get_mailbox(struct aac_softc *sc, int mb)
    730 {
    731 
    732 	return (AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4)));
    733 }
    734 
    735 static uint32_t
    736 aac_rx_get_mailbox(struct aac_softc *sc, int mb)
    737 {
    738 
    739 	return (AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4)));
    740 }
    741 
    742 static uint32_t
    743 aac_rkt_get_mailbox(struct aac_softc *sc, int mb)
    744 {
    745 
    746 	return (AAC_GETREG4(sc, AAC_RKT_MAILBOX + (mb * 4)));
    747 }
    748 
    749 /*
    750  * Set/clear interrupt masks
    751  */
    752 static void
    753 aac_sa_set_interrupts(struct aac_softc *sc, int enable)
    754 {
    755 
    756 	if (enable)
    757 		AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
    758 	else
    759 		AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0);
    760 }
    761 
    762 static void
    763 aac_rx_set_interrupts(struct aac_softc *sc, int enable)
    764 {
    765 
    766 	if (enable) {
    767 		if (sc->sc_quirks & AAC_QUIRK_NEW_COMM)
    768 			AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INT_NEW_COMM);
    769 		else
    770 			AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS);
    771 	} else {
    772 		AAC_SETREG4(sc, AAC_RX_OIMR, ~0);
    773 	}
    774 }
    775 
    776 static void
    777 aac_rkt_set_interrupts(struct aac_softc *sc, int enable)
    778 {
    779 
    780 	if (enable) {
    781 		if (sc->sc_quirks & AAC_QUIRK_NEW_COMM)
    782 			AAC_SETREG4(sc, AAC_RKT_OIMR, ~AAC_DB_INT_NEW_COMM);
    783 		else
    784 			AAC_SETREG4(sc, AAC_RKT_OIMR, ~AAC_DB_INTERRUPTS);
    785 	} else {
    786 		AAC_SETREG4(sc, AAC_RKT_OIMR, ~0);
    787 	}
    788 }
    789 
    790 /*
    791  * New comm. interface: Send command functions
    792  */
    793 static int
    794 aac_rx_send_command(struct aac_softc *sc, struct aac_ccb *ac)
    795 {
    796 	u_int32_t	index, device;
    797 
    798 	index = AAC_GETREG4(sc, AAC_RX_IQUE);
    799 	if (index == 0xffffffffL)
    800 		index = AAC_GETREG4(sc, AAC_RX_IQUE);
    801 	if (index == 0xffffffffL)
    802 		return index;
    803 #ifdef notyet
    804 	aac_enqueue_busy(ac);
    805 #endif
    806 	device = index;
    807 	AAC_SETREG4(sc, device,
    808 	    htole32((u_int32_t)(ac->ac_fibphys & 0xffffffffUL)));
    809 	device += 4;
    810 	if (sizeof(bus_addr_t) > 4) {
    811 		AAC_SETREG4(sc, device,
    812 		    htole32((u_int32_t)((u_int64_t)ac->ac_fibphys >> 32)));
    813 	} else {
    814 		AAC_SETREG4(sc, device, 0);
    815 	}
    816 	device += 4;
    817 	AAC_SETREG4(sc, device, ac->ac_fib->Header.Size);
    818 	AAC_SETREG4(sc, AAC_RX_IQUE, index);
    819 	return 0;
    820 }
    821 
    822 static int
    823 aac_rkt_send_command(struct aac_softc *sc, struct aac_ccb *ac)
    824 {
    825 	u_int32_t	index, device;
    826 
    827 	index = AAC_GETREG4(sc, AAC_RKT_IQUE);
    828 	if (index == 0xffffffffL)
    829 		index = AAC_GETREG4(sc, AAC_RKT_IQUE);
    830 	if (index == 0xffffffffL)
    831 		return index;
    832 #ifdef notyet
    833 	aac_enqueue_busy(ac);
    834 #endif
    835 	device = index;
    836 	AAC_SETREG4(sc, device,
    837 	    htole32((u_int32_t)(ac->ac_fibphys & 0xffffffffUL)));
    838 	device += 4;
    839 	if (sizeof(bus_addr_t) > 4) {
    840 		AAC_SETREG4(sc, device,
    841 		    htole32((u_int32_t)((u_int64_t)ac->ac_fibphys >> 32)));
    842 	} else {
    843 		AAC_SETREG4(sc, device, 0);
    844 	}
    845 	device += 4;
    846 	AAC_SETREG4(sc, device, ac->ac_fib->Header.Size);
    847 	AAC_SETREG4(sc, AAC_RKT_IQUE, index);
    848 	return 0;
    849 }
    850 
    851 /*
    852  * New comm. interface: get, set outbound queue index
    853  */
    854 static int
    855 aac_rx_get_outb_queue(struct aac_softc *sc)
    856 {
    857 
    858 	return AAC_GETREG4(sc, AAC_RX_OQUE);
    859 }
    860 
    861 static int
    862 aac_rkt_get_outb_queue(struct aac_softc *sc)
    863 {
    864 
    865 	return AAC_GETREG4(sc, AAC_RKT_OQUE);
    866 }
    867 
    868 static void
    869 aac_rx_set_outb_queue(struct aac_softc *sc, int index)
    870 {
    871 
    872 	AAC_SETREG4(sc, AAC_RX_OQUE, index);
    873 }
    874 
    875 static void
    876 aac_rkt_set_outb_queue(struct aac_softc *sc, int index)
    877 {
    878 
    879 	AAC_SETREG4(sc, AAC_RKT_OQUE, index);
    880 }
    881