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aac_pci.c revision 1.41
      1 /*	$NetBSD: aac_pci.c,v 1.41 2021/04/24 23:36:57 thorpej 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 1.41 2021/04/24 23:36:57 thorpej 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_2405,
    360 		AAC_HWIF_I960RX,
    361 		0,
    362 		"Adaptec RAID 2405"
    363 	},
    364 	{	PCI_VENDOR_ADP2,
    365 		PCI_PRODUCT_ADP2_ASR2200S,
    366 		PCI_VENDOR_ADP2,
    367 		PCI_PRODUCT_ADP2_2445,
    368 		AAC_HWIF_I960RX,
    369 		0,
    370 		"Adaptec RAID 2445"
    371 	},
    372 	{	PCI_VENDOR_ADP2,
    373 		PCI_PRODUCT_ADP2_ASR2200S,
    374 		PCI_VENDOR_ADP2,
    375 		PCI_PRODUCT_ADP2_2805,
    376 		AAC_HWIF_I960RX,
    377 		0,
    378 		"Adaptec RAID 2805"
    379 	},
    380 	{	PCI_VENDOR_ADP2,
    381 		PCI_PRODUCT_ADP2_ASR2200S,
    382 		PCI_VENDOR_ADP2,
    383 		PCI_PRODUCT_ADP2_3405,
    384 		AAC_HWIF_I960RX,
    385 		0,
    386 		"Adaptec RAID 3405"
    387 	},
    388 	{	PCI_VENDOR_ADP2,
    389 		PCI_PRODUCT_ADP2_ASR2200S,
    390 		PCI_VENDOR_ADP2,
    391 		PCI_PRODUCT_ADP2_3805,
    392 		AAC_HWIF_I960RX,
    393 		0,
    394 		"Adaptec RAID 3805"
    395 	},
    396 	{
    397 		PCI_VENDOR_DEC,
    398 		PCI_PRODUCT_DEC_21554,
    399 		PCI_VENDOR_ADP2,
    400 		PCI_PRODUCT_ADP2_AAC364,
    401 		AAC_HWIF_STRONGARM,
    402 		0,
    403 		"Adaptec AAC-364"
    404 	},
    405 	{
    406 		PCI_VENDOR_DEC,
    407 		PCI_PRODUCT_DEC_21554,
    408 		PCI_VENDOR_ADP2,
    409 		PCI_PRODUCT_ADP2_ASR5400S,
    410 		AAC_HWIF_STRONGARM,
    411 		AAC_QUIRK_BROKEN_MMAP,
    412 		"Adaptec ASR-5400S"
    413 	},
    414 	{
    415 		PCI_VENDOR_DEC,
    416 		PCI_PRODUCT_DEC_21554,
    417 		PCI_VENDOR_ADP2,
    418 		PCI_PRODUCT_ADP2_PERC_2QC,
    419 		AAC_HWIF_STRONGARM,
    420 		AAC_QUIRK_PERC2QC,
    421 		"Dell PERC 2/QC"
    422 	},
    423 	{
    424 		PCI_VENDOR_DEC,
    425 		PCI_PRODUCT_DEC_21554,
    426 		PCI_VENDOR_ADP2,
    427 		PCI_PRODUCT_ADP2_PERC_3QC,
    428 		AAC_HWIF_STRONGARM,
    429 		0,
    430 		"Dell PERC 3/QC"
    431 	},
    432 	{
    433 		PCI_VENDOR_DEC,
    434 		PCI_PRODUCT_DEC_21554,
    435 		PCI_VENDOR_HP,
    436 		PCI_PRODUCT_HP_NETRAID_4M,
    437 		AAC_HWIF_STRONGARM,
    438 		0,
    439 		"HP NetRAID-4M"
    440 	},
    441 	{
    442 		PCI_VENDOR_ADP2,
    443 		PCI_PRODUCT_ADP2_ASR2200S,
    444 		PCI_VENDOR_SUN,
    445 		PCI_PRODUCT_ADP2_ASR2120S,
    446 		AAC_HWIF_I960RX,
    447 		0,
    448 		"SG-XPCIESAS-R-IN"
    449 	},
    450 };
    451 
    452 static const struct aac_ident *
    453 aac_find_ident(struct pci_attach_args *pa)
    454 {
    455 	const struct aac_ident *m, *mm;
    456 	u_int32_t subsysid;
    457 
    458 	m = aac_ident;
    459 	mm = aac_ident + (sizeof(aac_ident) / sizeof(aac_ident[0]));
    460 
    461 	while (m < mm) {
    462 		if (m->vendor == PCI_VENDOR(pa->pa_id) &&
    463 		    m->device == PCI_PRODUCT(pa->pa_id)) {
    464 			subsysid = pci_conf_read(pa->pa_pc, pa->pa_tag,
    465 			    PCI_SUBSYS_ID_REG);
    466 			if (m->subvendor == PCI_VENDOR(subsysid) &&
    467 			    m->subdevice == PCI_PRODUCT(subsysid))
    468 				return (m);
    469 		}
    470 		m++;
    471 	}
    472 
    473 	return (NULL);
    474 }
    475 
    476 static int
    477 aac_pci_intr_set(struct aac_softc *sc, int (*hand)(void*), void *arg)
    478 {
    479 	struct aac_pci_softc	*pcisc;
    480 
    481 	pcisc = (struct aac_pci_softc *) sc;
    482 
    483 	pci_intr_disestablish(pcisc->sc_pc, sc->sc_ih);
    484 	sc->sc_ih = pci_intr_establish_xname(pcisc->sc_pc, pcisc->sc_ih,
    485 	    IPL_BIO, hand, arg, device_xname(sc->sc_dv));
    486 	if (sc->sc_ih == NULL) {
    487 		return ENXIO;
    488 	}
    489 	return 0;
    490 }
    491 
    492 static int
    493 aac_pci_match(device_t parent, cfdata_t match, void *aux)
    494 {
    495 	struct pci_attach_args *pa;
    496 
    497 	pa = aux;
    498 
    499 	if (PCI_CLASS(pa->pa_class) == PCI_CLASS_I2O)
    500 		return (0);
    501 
    502 	return (aac_find_ident(pa) != NULL);
    503 }
    504 
    505 static void
    506 aac_pci_attach(device_t parent, device_t self, void *aux)
    507 {
    508 	struct pci_attach_args *pa;
    509 	pci_chipset_tag_t pc;
    510 	struct aac_pci_softc *pcisc;
    511 	struct aac_softc *sc;
    512 	u_int16_t command;
    513 	bus_addr_t membase;
    514 	bus_size_t memsize;
    515 	const char *intrstr;
    516 	int state;
    517 	const struct aac_ident *m;
    518 	char intrbuf[PCI_INTRSTR_LEN];
    519 
    520 	pa = aux;
    521 	pc = pa->pa_pc;
    522 	pcisc = device_private(self);
    523 	pcisc->sc_pc = pc;
    524 	sc = &pcisc->sc_aac;
    525 	sc->sc_dv = self;
    526 	state = 0;
    527 
    528 	aprint_naive(": RAID controller\n");
    529 	aprint_normal(": ");
    530 
    531 	/*
    532 	 * Verify that the adapter is correctly set up in PCI space.
    533 	 */
    534 	command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    535 	command |= PCI_COMMAND_MASTER_ENABLE;
    536 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command);
    537 	command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG);
    538 	AAC_DPRINTF(AAC_D_MISC, ("pci command status reg 0x08x "));
    539 
    540 	if ((command & PCI_COMMAND_MASTER_ENABLE) == 0) {
    541 		aprint_error("can't enable bus-master feature\n");
    542 		goto bail_out;
    543 	}
    544 
    545 	if ((command & PCI_COMMAND_MEM_ENABLE) == 0) {
    546 		aprint_error("memory window not available\n");
    547 		goto bail_out;
    548 	}
    549 
    550 	/*
    551 	 * Map control/status registers.
    552 	 */
    553 	if (pci_mapreg_map(pa, PCI_MAPREG_START,
    554 	    PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, &sc->sc_memt,
    555 	    &sc->sc_memh, &membase, &memsize)) {
    556 		aprint_error("can't find mem space\n");
    557 		goto bail_out;
    558 	}
    559 	state++;
    560 
    561 	if (pci_intr_map(pa, &pcisc->sc_ih)) {
    562 		aprint_error("couldn't map interrupt\n");
    563 		goto bail_out;
    564 	}
    565 	intrstr = pci_intr_string(pc, pcisc->sc_ih, intrbuf, sizeof(intrbuf));
    566 	sc->sc_ih = pci_intr_establish_xname(pc, pcisc->sc_ih, IPL_BIO,
    567 	    aac_intr, sc, device_xname(self));
    568 	if (sc->sc_ih == NULL) {
    569 		aprint_error("couldn't establish interrupt");
    570 		if (intrstr != NULL)
    571 			aprint_error(" at %s", intrstr);
    572 		aprint_error("\n");
    573 		goto bail_out;
    574 	}
    575 	state++;
    576 
    577 	sc->sc_dmat = pa->pa_dmat;
    578 
    579 	m = aac_find_ident(pa);
    580 	aprint_normal("%s\n", m->prodstr);
    581 	if (intrstr != NULL)
    582 		aprint_normal_dev(self, "interrupting at %s\n", intrstr);
    583 
    584 	sc->sc_hwif = m->hwif;
    585 	sc->sc_quirks = m->quirks;
    586 	switch (sc->sc_hwif) {
    587 		case AAC_HWIF_I960RX:
    588 			AAC_DPRINTF(AAC_D_MISC,
    589 			    ("set hardware up for i960Rx"));
    590 			sc->sc_if = aac_rx_interface;
    591 			break;
    592 
    593 		case AAC_HWIF_STRONGARM:
    594 			AAC_DPRINTF(AAC_D_MISC,
    595 			    ("set hardware up for StrongARM"));
    596 			sc->sc_if = aac_sa_interface;
    597 			break;
    598 
    599 		case AAC_HWIF_RKT:
    600 			AAC_DPRINTF(AAC_D_MISC,
    601 			    ("set hardware up for MIPS/Rocket"));
    602 			sc->sc_if = aac_rkt_interface;
    603 			break;
    604 	}
    605 	sc->sc_regsize = memsize;
    606 	sc->sc_intr_set = aac_pci_intr_set;
    607 
    608 	if (!aac_attach(sc))
    609 		return;
    610 
    611  bail_out:
    612 	if (state > 1)
    613 		pci_intr_disestablish(pc, sc->sc_ih);
    614 	if (state > 0)
    615 		bus_space_unmap(sc->sc_memt, sc->sc_memh, memsize);
    616 }
    617 
    618 /* ARGSUSED */
    619 static int
    620 aac_pci_rescan(device_t self, const char *ifattr, const int *locs)
    621 {
    622 
    623 	return aac_devscan(device_private(self));
    624 }
    625 
    626 CFATTACH_DECL3_NEW(aac_pci, sizeof(struct aac_pci_softc),
    627     aac_pci_match, aac_pci_attach, NULL, NULL, aac_pci_rescan, NULL, 0);
    628 
    629 /*
    630  * Read the current firmware status word.
    631  */
    632 static int
    633 aac_sa_get_fwstatus(struct aac_softc *sc)
    634 {
    635 
    636 	return (AAC_GETREG4(sc, AAC_SA_FWSTATUS));
    637 }
    638 
    639 static int
    640 aac_rx_get_fwstatus(struct aac_softc *sc)
    641 {
    642 
    643 	return (AAC_GETREG4(sc, AAC_RX_FWSTATUS));
    644 }
    645 
    646 static int
    647 aac_rkt_get_fwstatus(struct aac_softc *sc)
    648 {
    649 
    650 	return (AAC_GETREG4(sc, AAC_RKT_FWSTATUS));
    651 }
    652 
    653 /*
    654  * Notify the controller of a change in a given queue
    655  */
    656 
    657 static void
    658 aac_sa_qnotify(struct aac_softc *sc, int qbit)
    659 {
    660 
    661 	AAC_SETREG2(sc, AAC_SA_DOORBELL1_SET, qbit);
    662 }
    663 
    664 static void
    665 aac_rx_qnotify(struct aac_softc *sc, int qbit)
    666 {
    667 
    668 	AAC_SETREG4(sc, AAC_RX_IDBR, qbit);
    669 }
    670 
    671 static void
    672 aac_rkt_qnotify(struct aac_softc *sc, int qbit)
    673 {
    674 
    675 	AAC_SETREG4(sc, AAC_RKT_IDBR, qbit);
    676 }
    677 
    678 /*
    679  * Get the interrupt reason bits
    680  */
    681 static int
    682 aac_sa_get_istatus(struct aac_softc *sc)
    683 {
    684 
    685 	return (AAC_GETREG2(sc, AAC_SA_DOORBELL0));
    686 }
    687 
    688 static int
    689 aac_rx_get_istatus(struct aac_softc *sc)
    690 {
    691 
    692 	return (AAC_GETREG4(sc, AAC_RX_ODBR));
    693 }
    694 
    695 static int
    696 aac_rkt_get_istatus(struct aac_softc *sc)
    697 {
    698 
    699 	return (AAC_GETREG4(sc, AAC_RKT_ODBR));
    700 }
    701 
    702 /*
    703  * Clear some interrupt reason bits
    704  */
    705 static void
    706 aac_sa_clear_istatus(struct aac_softc *sc, int mask)
    707 {
    708 
    709 	AAC_SETREG2(sc, AAC_SA_DOORBELL0_CLEAR, mask);
    710 }
    711 
    712 static void
    713 aac_rx_clear_istatus(struct aac_softc *sc, int mask)
    714 {
    715 
    716 	AAC_SETREG4(sc, AAC_RX_ODBR, mask);
    717 }
    718 
    719 static void
    720 aac_rkt_clear_istatus(struct aac_softc *sc, int mask)
    721 {
    722 
    723 	AAC_SETREG4(sc, AAC_RKT_ODBR, mask);
    724 }
    725 
    726 /*
    727  * Populate the mailbox and set the command word
    728  */
    729 static void
    730 aac_sa_set_mailbox(struct aac_softc *sc, u_int32_t command,
    731 		   u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
    732 		   u_int32_t arg3)
    733 {
    734 
    735 	AAC_SETREG4(sc, AAC_SA_MAILBOX, command);
    736 	AAC_SETREG4(sc, AAC_SA_MAILBOX + 4, arg0);
    737 	AAC_SETREG4(sc, AAC_SA_MAILBOX + 8, arg1);
    738 	AAC_SETREG4(sc, AAC_SA_MAILBOX + 12, arg2);
    739 	AAC_SETREG4(sc, AAC_SA_MAILBOX + 16, arg3);
    740 }
    741 
    742 static void
    743 aac_rx_set_mailbox(struct aac_softc *sc, u_int32_t command,
    744 		   u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
    745 		   u_int32_t arg3)
    746 {
    747 
    748 	AAC_SETREG4(sc, AAC_RX_MAILBOX, command);
    749 	AAC_SETREG4(sc, AAC_RX_MAILBOX + 4, arg0);
    750 	AAC_SETREG4(sc, AAC_RX_MAILBOX + 8, arg1);
    751 	AAC_SETREG4(sc, AAC_RX_MAILBOX + 12, arg2);
    752 	AAC_SETREG4(sc, AAC_RX_MAILBOX + 16, arg3);
    753 }
    754 
    755 static void
    756 aac_rkt_set_mailbox(struct aac_softc *sc, u_int32_t command,
    757 		    u_int32_t arg0, u_int32_t arg1, u_int32_t arg2,
    758 		    u_int32_t arg3)
    759 {
    760 
    761 	AAC_SETREG4(sc, AAC_RKT_MAILBOX, command);
    762 	AAC_SETREG4(sc, AAC_RKT_MAILBOX + 4, arg0);
    763 	AAC_SETREG4(sc, AAC_RKT_MAILBOX + 8, arg1);
    764 	AAC_SETREG4(sc, AAC_RKT_MAILBOX + 12, arg2);
    765 	AAC_SETREG4(sc, AAC_RKT_MAILBOX + 16, arg3);
    766 }
    767 
    768 /*
    769  * Fetch the specified mailbox
    770  */
    771 static uint32_t
    772 aac_sa_get_mailbox(struct aac_softc *sc, int mb)
    773 {
    774 
    775 	return (AAC_GETREG4(sc, AAC_SA_MAILBOX + (mb * 4)));
    776 }
    777 
    778 static uint32_t
    779 aac_rx_get_mailbox(struct aac_softc *sc, int mb)
    780 {
    781 
    782 	return (AAC_GETREG4(sc, AAC_RX_MAILBOX + (mb * 4)));
    783 }
    784 
    785 static uint32_t
    786 aac_rkt_get_mailbox(struct aac_softc *sc, int mb)
    787 {
    788 
    789 	return (AAC_GETREG4(sc, AAC_RKT_MAILBOX + (mb * 4)));
    790 }
    791 
    792 /*
    793  * Set/clear interrupt masks
    794  */
    795 static void
    796 aac_sa_set_interrupts(struct aac_softc *sc, int enable)
    797 {
    798 
    799 	if (enable)
    800 		AAC_SETREG2((sc), AAC_SA_MASK0_CLEAR, AAC_DB_INTERRUPTS);
    801 	else
    802 		AAC_SETREG2((sc), AAC_SA_MASK0_SET, ~0);
    803 }
    804 
    805 static void
    806 aac_rx_set_interrupts(struct aac_softc *sc, int enable)
    807 {
    808 
    809 	if (enable) {
    810 		if (sc->sc_quirks & AAC_QUIRK_NEW_COMM)
    811 			AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INT_NEW_COMM);
    812 		else
    813 			AAC_SETREG4(sc, AAC_RX_OIMR, ~AAC_DB_INTERRUPTS);
    814 	} else {
    815 		AAC_SETREG4(sc, AAC_RX_OIMR, ~0);
    816 	}
    817 }
    818 
    819 static void
    820 aac_rkt_set_interrupts(struct aac_softc *sc, int enable)
    821 {
    822 
    823 	if (enable) {
    824 		if (sc->sc_quirks & AAC_QUIRK_NEW_COMM)
    825 			AAC_SETREG4(sc, AAC_RKT_OIMR, ~AAC_DB_INT_NEW_COMM);
    826 		else
    827 			AAC_SETREG4(sc, AAC_RKT_OIMR, ~AAC_DB_INTERRUPTS);
    828 	} else {
    829 		AAC_SETREG4(sc, AAC_RKT_OIMR, ~0);
    830 	}
    831 }
    832 
    833 /*
    834  * New comm. interface: Send command functions
    835  */
    836 static int
    837 aac_rx_send_command(struct aac_softc *sc, struct aac_ccb *ac)
    838 {
    839 	u_int32_t	index, device;
    840 
    841 	index = AAC_GETREG4(sc, AAC_RX_IQUE);
    842 	if (index == 0xffffffffL)
    843 		index = AAC_GETREG4(sc, AAC_RX_IQUE);
    844 	if (index == 0xffffffffL)
    845 		return index;
    846 #ifdef notyet
    847 	aac_enqueue_busy(ac);
    848 #endif
    849 	device = index;
    850 	AAC_SETREG4(sc, device,
    851 	    htole32((u_int32_t)(ac->ac_fibphys & 0xffffffffUL)));
    852 	device += 4;
    853 	if (sizeof(bus_addr_t) > 4) {
    854 		AAC_SETREG4(sc, device,
    855 		    htole32((u_int32_t)((u_int64_t)ac->ac_fibphys >> 32)));
    856 	} else {
    857 		AAC_SETREG4(sc, device, 0);
    858 	}
    859 	device += 4;
    860 	AAC_SETREG4(sc, device, ac->ac_fib->Header.Size);
    861 	AAC_SETREG4(sc, AAC_RX_IQUE, index);
    862 	return 0;
    863 }
    864 
    865 static int
    866 aac_rkt_send_command(struct aac_softc *sc, struct aac_ccb *ac)
    867 {
    868 	u_int32_t	index, device;
    869 
    870 	index = AAC_GETREG4(sc, AAC_RKT_IQUE);
    871 	if (index == 0xffffffffL)
    872 		index = AAC_GETREG4(sc, AAC_RKT_IQUE);
    873 	if (index == 0xffffffffL)
    874 		return index;
    875 #ifdef notyet
    876 	aac_enqueue_busy(ac);
    877 #endif
    878 	device = index;
    879 	AAC_SETREG4(sc, device,
    880 	    htole32((u_int32_t)(ac->ac_fibphys & 0xffffffffUL)));
    881 	device += 4;
    882 	if (sizeof(bus_addr_t) > 4) {
    883 		AAC_SETREG4(sc, device,
    884 		    htole32((u_int32_t)((u_int64_t)ac->ac_fibphys >> 32)));
    885 	} else {
    886 		AAC_SETREG4(sc, device, 0);
    887 	}
    888 	device += 4;
    889 	AAC_SETREG4(sc, device, ac->ac_fib->Header.Size);
    890 	AAC_SETREG4(sc, AAC_RKT_IQUE, index);
    891 	return 0;
    892 }
    893 
    894 /*
    895  * New comm. interface: get, set outbound queue index
    896  */
    897 static int
    898 aac_rx_get_outb_queue(struct aac_softc *sc)
    899 {
    900 
    901 	return AAC_GETREG4(sc, AAC_RX_OQUE);
    902 }
    903 
    904 static int
    905 aac_rkt_get_outb_queue(struct aac_softc *sc)
    906 {
    907 
    908 	return AAC_GETREG4(sc, AAC_RKT_OQUE);
    909 }
    910 
    911 static void
    912 aac_rx_set_outb_queue(struct aac_softc *sc, int index)
    913 {
    914 
    915 	AAC_SETREG4(sc, AAC_RX_OQUE, index);
    916 }
    917 
    918 static void
    919 aac_rkt_set_outb_queue(struct aac_softc *sc, int index)
    920 {
    921 
    922 	AAC_SETREG4(sc, AAC_RKT_OQUE, index);
    923 }
    924