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if_tlp_pci.c revision 1.20.4.1
      1 /*	$NetBSD: if_tlp_pci.c,v 1.20.4.1 1999/11/15 00:41:02 fvdl Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1998, 1999 The NetBSD Foundation, Inc.
      5  * All rights reserved.
      6  *
      7  * This code is derived from software contributed to The NetBSD Foundation
      8  * by Jason R. Thorpe of the Numerical Aerospace Simulation Facility,
      9  * NASA Ames Research Center.
     10  *
     11  * Redistribution and use in source and binary forms, with or without
     12  * modification, are permitted provided that the following conditions
     13  * are met:
     14  * 1. Redistributions of source code must retain the above copyright
     15  *    notice, this list of conditions and the following disclaimer.
     16  * 2. Redistributions in binary form must reproduce the above copyright
     17  *    notice, this list of conditions and the following disclaimer in the
     18  *    documentation and/or other materials provided with the distribution.
     19  * 3. All advertising materials mentioning features or use of this software
     20  *    must display the following acknowledgement:
     21  *	This product includes software developed by the NetBSD
     22  *	Foundation, Inc. and its contributors.
     23  * 4. Neither the name of The NetBSD Foundation nor the names of its
     24  *    contributors may be used to endorse or promote products derived
     25  *    from this software without specific prior written permission.
     26  *
     27  * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
     28  * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
     29  * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
     30  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
     31  * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
     32  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
     33  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
     34  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
     35  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
     36  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
     37  * POSSIBILITY OF SUCH DAMAGE.
     38  */
     39 
     40 /*
     41  * PCI bus front-end for the Digital Semiconductor ``Tulip'' (21x4x)
     42  * Ethernet controller family driver.
     43  */
     44 
     45 #include "opt_inet.h"
     46 #include "opt_ns.h"
     47 #include "bpfilter.h"
     48 
     49 #include <sys/param.h>
     50 #include <sys/systm.h>
     51 #include <sys/mbuf.h>
     52 #include <sys/malloc.h>
     53 #include <sys/kernel.h>
     54 #include <sys/socket.h>
     55 #include <sys/ioctl.h>
     56 #include <sys/errno.h>
     57 #include <sys/device.h>
     58 
     59 #include <net/if.h>
     60 #include <net/if_dl.h>
     61 #include <net/if_media.h>
     62 #include <net/if_ether.h>
     63 
     64 #if NBPFILTER > 0
     65 #include <net/bpf.h>
     66 #endif
     67 
     68 #ifdef INET
     69 #include <netinet/in.h>
     70 #include <netinet/if_inarp.h>
     71 #endif
     72 
     73 #ifdef NS
     74 #include <netns/ns.h>
     75 #include <netns/ns_if.h>
     76 #endif
     77 
     78 #include <machine/bus.h>
     79 #include <machine/intr.h>
     80 
     81 #include <dev/mii/miivar.h>
     82 
     83 #include <dev/ic/tulipreg.h>
     84 #include <dev/ic/tulipvar.h>
     85 
     86 #include <dev/pci/pcivar.h>
     87 #include <dev/pci/pcireg.h>
     88 #include <dev/pci/pcidevs.h>
     89 
     90 /*
     91  * PCI configuration space registers used by the Tulip.
     92  */
     93 #define	TULIP_PCI_IOBA		0x10	/* i/o mapped base */
     94 #define	TULIP_PCI_MMBA		0x14	/* memory mapped base */
     95 #define	TULIP_PCI_CFDA		0x40	/* configuration driver area */
     96 
     97 #define	CFDA_SLEEP		0x80000000	/* sleep mode */
     98 
     99 struct tulip_pci_softc {
    100 	struct tulip_softc sc_tulip;	/* real Tulip softc */
    101 
    102 	/* PCI-specific goo. */
    103 	void	*sc_ih;			/* interrupt handle */
    104 
    105 	pci_chipset_tag_t sc_pc;	/* our PCI chipset */
    106 	pcitag_t sc_pcitag;		/* our PCI tag */
    107 
    108 	int	sc_flags;		/* flags; see below */
    109 
    110 	LIST_HEAD(, tulip_pci_softc) sc_intrslaves;
    111 	LIST_ENTRY(tulip_pci_softc) sc_intrq;
    112 
    113 	/* Our {ROM,interrupt} master. */
    114 	struct tulip_pci_softc *sc_master;
    115 };
    116 
    117 /* sc_flags */
    118 #define	TULIP_PCI_SHAREDINTR	0x01	/* interrupt is shared */
    119 #define	TULIP_PCI_SLAVEINTR	0x02	/* interrupt is slave */
    120 #define	TULIP_PCI_SHAREDROM	0x04	/* ROM is shared */
    121 #define	TULIP_PCI_SLAVEROM	0x08	/* slave of shared ROM */
    122 
    123 int	tlp_pci_match __P((struct device *, struct cfdata *, void *));
    124 void	tlp_pci_attach __P((struct device *, struct device *, void *));
    125 
    126 struct cfattach tlp_pci_ca = {
    127 	sizeof(struct tulip_pci_softc), tlp_pci_match, tlp_pci_attach,
    128 };
    129 
    130 const struct tulip_pci_product {
    131 	u_int32_t	tpp_vendor;	/* PCI vendor ID */
    132 	u_int32_t	tpp_product;	/* PCI product ID */
    133 	tulip_chip_t	tpp_chip;	/* base Tulip chip type */
    134 	int		tpp_pmreg;	/* power management register offset */
    135 } tlp_pci_products[] = {
    136 #ifdef TLP_MATCH_21040
    137 	{ PCI_VENDOR_DEC,		PCI_PRODUCT_DEC_21040,
    138 	  TULIP_CHIP_21040,		0 },
    139 #endif
    140 #ifdef TLP_MATCH_21041
    141 	{ PCI_VENDOR_DEC,		PCI_PRODUCT_DEC_21041,
    142 	  TULIP_CHIP_21041,		0 },
    143 #endif
    144 #ifdef TLP_MATCH_21140
    145 	{ PCI_VENDOR_DEC,		PCI_PRODUCT_DEC_21140,
    146 	  TULIP_CHIP_21140,		0 },
    147 #endif
    148 #ifdef TLP_MATCH_21142
    149 	{ PCI_VENDOR_DEC,		PCI_PRODUCT_DEC_21142,
    150 	  TULIP_CHIP_21142,		0 },
    151 #endif
    152 
    153 	{ PCI_VENDOR_LITEON,		PCI_PRODUCT_LITEON_82C168,
    154 	  TULIP_CHIP_82C168,		0 },
    155 
    156 	/*
    157 	 * Note: This is like a MX98725 with Wake-On-LAN and a
    158 	 * 128-bit multicast hash table.
    159 	 */
    160 	{ PCI_VENDOR_LITEON,		PCI_PRODUCT_LITEON_82C115,
    161 	  TULIP_CHIP_82C115,		0x48 },
    162 
    163 	{ PCI_VENDOR_MACRONIX,		PCI_PRODUCT_MACRONIX_MX98713,
    164 	  TULIP_CHIP_MX98713,		0 },
    165 	{ PCI_VENDOR_MACRONIX,		PCI_PRODUCT_MACRONIX_MX987x5,
    166 	  TULIP_CHIP_MX98715,		0x48 },
    167 
    168 	{ PCI_VENDOR_COMPEX,		PCI_PRODUCT_COMPEX_RL100TX,
    169 	  TULIP_CHIP_MX98713,		0 },
    170 
    171 	{ PCI_VENDOR_WINBOND,		PCI_PRODUCT_WINBOND_W89C840F,
    172 	  TULIP_CHIP_WB89C840F,		0 },
    173 	{ PCI_VENDOR_COMPEX,		PCI_PRODUCT_COMPEX_RL100ATX,
    174 	  TULIP_CHIP_WB89C840F,		0 },
    175 
    176 #if 0
    177 	{ PCI_VENDOR_DAVICOM,		PCI_PRODUCT_DAVICOM_DM9102,
    178 	  TULIP_CHIP_DM9102,		0 },
    179 #endif
    180 
    181 	{ PCI_VENDOR_ADMTEK,		PCI_PRODUCT_ADMTEK_AL981,
    182 	  TULIP_CHIP_AL981,		0xc4 },
    183 
    184 #if 0
    185 	{ PCI_VENDOR_ASIX,		PCI_PRODUCT_ASIX_AX88140A,
    186 	  TULIP_CHIP_AX88140,		0 },
    187 #endif
    188 
    189 	{ 0,				0,
    190 	  TULIP_CHIP_INVALID,		0 },
    191 };
    192 
    193 struct tlp_pci_quirks {
    194 	void		(*tpq_func) __P((struct tulip_pci_softc *,
    195 			    const u_int8_t *));
    196 	u_int8_t	tpq_oui[3];
    197 };
    198 
    199 void	tlp_pci_dec_quirks __P((struct tulip_pci_softc *,
    200 	    const u_int8_t *));
    201 
    202 void	tlp_pci_znyx_21040_quirks __P((struct tulip_pci_softc *,
    203 	    const u_int8_t *));
    204 void	tlp_pci_smc_21040_quirks __P((struct tulip_pci_softc *,
    205 	    const u_int8_t *));
    206 void	tlp_pci_cogent_21040_quirks __P((struct tulip_pci_softc *,
    207 	    const u_int8_t *));
    208 void	tlp_pci_accton_21040_quirks __P((struct tulip_pci_softc *,
    209 	    const u_int8_t *));
    210 
    211 const struct tlp_pci_quirks tlp_pci_21040_quirks[] = {
    212 	{ tlp_pci_znyx_21040_quirks,	{ 0x00, 0xc0, 0x95 } },
    213 	{ tlp_pci_smc_21040_quirks,	{ 0x00, 0x00, 0xc0 } },
    214 	{ tlp_pci_cogent_21040_quirks,	{ 0x00, 0x00, 0x92 } },
    215 	{ tlp_pci_accton_21040_quirks,	{ 0x00, 0x00, 0xe8 } },
    216 	{ NULL,				{ 0, 0, 0 } }
    217 };
    218 
    219 const struct tlp_pci_quirks tlp_pci_21041_quirks[] = {
    220 	{ tlp_pci_dec_quirks,		{ 0x08, 0x00, 0x2b } },
    221 	{ tlp_pci_dec_quirks,		{ 0x00, 0x00, 0xf8 } },
    222 	{ NULL,				{ 0, 0, 0 } }
    223 };
    224 
    225 void	tlp_pci_asante_21140_quirks __P((struct tulip_pci_softc *,
    226 	    const u_int8_t *));
    227 
    228 const struct tlp_pci_quirks tlp_pci_21140_quirks[] = {
    229 	{ tlp_pci_dec_quirks,		{ 0x08, 0x00, 0x2b } },
    230 	{ tlp_pci_dec_quirks,		{ 0x00, 0x00, 0xf8 } },
    231 	{ tlp_pci_asante_21140_quirks,	{ 0x00, 0x00, 0x94 } },
    232 	{ NULL,				{ 0, 0, 0 } }
    233 };
    234 
    235 const struct tlp_pci_quirks tlp_pci_21142_quirks[] = {
    236 	{ tlp_pci_dec_quirks,		{ 0x08, 0x00, 0x2b } },
    237 	{ tlp_pci_dec_quirks,		{ 0x00, 0x00, 0xf8 } },
    238 	{ NULL,				{ 0, 0, 0 } }
    239 };
    240 
    241 const char *tlp_pci_chip_names[] = TULIP_CHIP_NAMES;
    242 
    243 int	tlp_pci_shared_intr __P((void *));
    244 
    245 const struct tulip_pci_product *tlp_pci_lookup
    246     __P((const struct pci_attach_args *));
    247 void tlp_pci_get_quirks __P((struct tulip_pci_softc *, const u_int8_t *,
    248     const struct tlp_pci_quirks *));
    249 void tlp_pci_check_slaved __P((struct tulip_pci_softc *, int, int));
    250 
    251 const struct tulip_pci_product *
    252 tlp_pci_lookup(pa)
    253 	const struct pci_attach_args *pa;
    254 {
    255 	const struct tulip_pci_product *tpp;
    256 
    257 	for (tpp = tlp_pci_products;
    258 	     tlp_pci_chip_names[tpp->tpp_chip] != NULL;
    259 	     tpp++) {
    260 		if (PCI_VENDOR(pa->pa_id) == tpp->tpp_vendor &&
    261 		    PCI_PRODUCT(pa->pa_id) == tpp->tpp_product)
    262 			return (tpp);
    263 	}
    264 	return (NULL);
    265 }
    266 
    267 void
    268 tlp_pci_get_quirks(psc, enaddr, tpq)
    269 	struct tulip_pci_softc *psc;
    270 	const u_int8_t *enaddr;
    271 	const struct tlp_pci_quirks *tpq;
    272 {
    273 
    274 	for (; tpq->tpq_func != NULL; tpq++) {
    275 		if (tpq->tpq_oui[0] == enaddr[0] &&
    276 		    tpq->tpq_oui[1] == enaddr[1] &&
    277 		    tpq->tpq_oui[2] == enaddr[2]) {
    278 			(*tpq->tpq_func)(psc, enaddr);
    279 			return;
    280 		}
    281 	}
    282 }
    283 
    284 void
    285 tlp_pci_check_slaved(psc, shared, slaved)
    286 	struct tulip_pci_softc *psc;
    287 	int shared, slaved;
    288 {
    289 	extern struct cfdriver tlp_cd;
    290 	struct tulip_pci_softc *cur, *best = NULL;
    291 	struct tulip_softc *sc = &psc->sc_tulip;
    292 	int i;
    293 
    294 	/*
    295 	 * First of all, find the lowest pcidev numbered device on our
    296 	 * bus marked as shared.  That should be our master.
    297 	 */
    298 	for (i = 0; i < tlp_cd.cd_ndevs; i++) {
    299 		if ((cur = tlp_cd.cd_devs[i]) == NULL)
    300 			continue;
    301 		if (cur->sc_tulip.sc_dev.dv_parent != sc->sc_dev.dv_parent)
    302 			continue;
    303 		if ((cur->sc_flags & shared) == 0)
    304 			continue;
    305 		if (cur == psc)
    306 			continue;
    307 		if (best == NULL ||
    308 		    best->sc_tulip.sc_devno > cur->sc_tulip.sc_devno)
    309 			best = cur;
    310 	}
    311 
    312 	if (best != NULL) {
    313 		psc->sc_master = best;
    314 		psc->sc_flags |= (shared | slaved);
    315 	}
    316 }
    317 
    318 int
    319 tlp_pci_match(parent, match, aux)
    320 	struct device *parent;
    321 	struct cfdata *match;
    322 	void *aux;
    323 {
    324 	struct pci_attach_args *pa = aux;
    325 
    326 	if (tlp_pci_lookup(pa) != NULL)
    327 		return (10);	/* beat if_de.c */
    328 
    329 	return (0);
    330 }
    331 
    332 void
    333 tlp_pci_attach(parent, self, aux)
    334 	struct device *parent, *self;
    335 	void *aux;
    336 {
    337 	struct tulip_pci_softc *psc = (void *) self;
    338 	struct tulip_softc *sc = &psc->sc_tulip;
    339 	struct pci_attach_args *pa = aux;
    340 	pci_chipset_tag_t pc = pa->pa_pc;
    341 	pci_intr_handle_t ih;
    342 	const char *intrstr = NULL;
    343 	bus_space_tag_t iot, memt;
    344 	bus_space_handle_t ioh, memh;
    345 	int ioh_valid, memh_valid, i, j;
    346 	const struct tulip_pci_product *tpp;
    347 	u_int8_t enaddr[ETHER_ADDR_LEN];
    348 	u_int32_t val;
    349 	pcireg_t reg;
    350 
    351 	sc->sc_devno = pa->pa_device;
    352 	psc->sc_pc = pa->pa_pc;
    353 	psc->sc_pcitag = pa->pa_tag;
    354 
    355 	LIST_INIT(&psc->sc_intrslaves);
    356 
    357 	tpp = tlp_pci_lookup(pa);
    358 	if (tpp == NULL) {
    359 		printf("\n");
    360 		panic("tlp_pci_attach: impossible");
    361 	}
    362 	sc->sc_chip = tpp->tpp_chip;
    363 
    364 	/*
    365 	 * By default, Tulip registers are 8 bytes long (4 bytes
    366 	 * followed by a 4 byte pad).
    367 	 */
    368 	sc->sc_regshift = 3;
    369 
    370 	/*
    371 	 * Get revision info, and set some chip-specific variables.
    372 	 */
    373 	sc->sc_rev = PCI_REVISION(pa->pa_class);
    374 	switch (sc->sc_chip) {
    375 	case TULIP_CHIP_21140:
    376 		if (sc->sc_rev >= 0x20)
    377 			sc->sc_chip = TULIP_CHIP_21140A;
    378 		break;
    379 
    380 	case TULIP_CHIP_21142:
    381 		if (sc->sc_rev >= 0x20)
    382 			sc->sc_chip = TULIP_CHIP_21143;
    383 		break;
    384 
    385 	case TULIP_CHIP_82C168:
    386 		if (sc->sc_rev >= 0x20)
    387 			sc->sc_chip = TULIP_CHIP_82C169;
    388 		break;
    389 
    390 	case TULIP_CHIP_MX98713:
    391 		if (sc->sc_rev >= 0x10)
    392 			sc->sc_chip = TULIP_CHIP_MX98713A;
    393 		break;
    394 
    395 	case TULIP_CHIP_MX98715:
    396 		if (sc->sc_rev >= 0x20)
    397 			sc->sc_chip = TULIP_CHIP_MX98715A;
    398 		if (sc->sc_rev >= 0x30)
    399 			sc->sc_chip = TULIP_CHIP_MX98725;
    400 		break;
    401 
    402 	case TULIP_CHIP_WB89C840F:
    403 		sc->sc_regshift = 2;
    404 		break;
    405 
    406 	case TULIP_CHIP_AX88140:
    407 		if (sc->sc_rev >= 0x10)
    408 			sc->sc_chip = TULIP_CHIP_AX88141;
    409 		break;
    410 
    411 	default:
    412 		/* Nothing. */
    413 	}
    414 
    415 	printf(": %s Ethernet, pass %d.%d\n",
    416 	    tlp_pci_chip_names[sc->sc_chip],
    417 	    (sc->sc_rev >> 4) & 0xf, sc->sc_rev & 0xf);
    418 
    419 	switch (sc->sc_chip) {
    420 	case TULIP_CHIP_21040:
    421 		if (sc->sc_rev < 0x20) {
    422 			printf("%s: 21040 must be at least pass 2.0\n",
    423 			    sc->sc_dev.dv_xname);
    424 			return;
    425 		}
    426 		break;
    427 
    428 	case TULIP_CHIP_21140:
    429 		if (sc->sc_rev < 0x11) {
    430 			printf("%s: 21140 must be at least pass 1.1\n",
    431 			    sc->sc_dev.dv_xname);
    432 			return;
    433 		}
    434 		break;
    435 
    436 	default:
    437 		/* Nothing. */
    438 	}
    439 
    440 	/*
    441 	 * Check to see if the device is in power-save mode, and
    442 	 * being it out if necessary.
    443 	 */
    444 	switch (sc->sc_chip) {
    445 	case TULIP_CHIP_21140:
    446 	case TULIP_CHIP_21140A:
    447 	case TULIP_CHIP_MX98713A:
    448 	case TULIP_CHIP_MX98715:
    449 	case TULIP_CHIP_MX98715A:
    450 	case TULIP_CHIP_MX98725:
    451 		/*
    452 		 * Clear the "sleep mode" bit in the CFDA register.
    453 		 */
    454 		reg = pci_conf_read(pc, pa->pa_tag, TULIP_PCI_CFDA);
    455 		if (reg & CFDA_SLEEP)
    456 			pci_conf_write(pc, pa->pa_tag, TULIP_PCI_CFDA,
    457 			    reg & ~CFDA_SLEEP);
    458 		break;
    459 
    460 	default:
    461 		/* Nothing. */
    462 	}
    463 
    464 	if (pci_get_capability(pc, pa->pa_tag, PCI_CAP_PWRMGMT, 0, 0)) {
    465 		if (tpp->tpp_pmreg == 0) {
    466 			printf("%s: don't know location of PMCSR for this "
    467 			    "chip\n", sc->sc_dev.dv_xname);
    468 			return;
    469 		}
    470 		reg = pci_conf_read(pc, pa->pa_tag, tpp->tpp_pmreg) & 0x3;
    471 		if (reg == 3) {
    472 			/*
    473 			 * The card has lost all configuration data in
    474 			 * this state, so punt.
    475 			 */
    476 			printf("%s: unable to wake up from power state D3\n",
    477 			    sc->sc_dev.dv_xname);
    478 			return;
    479 		}
    480 		if (reg != 0) {
    481 			printf("%s: waking up from power state D%d\n",
    482 			    sc->sc_dev.dv_xname, reg);
    483 			pci_conf_write(pc, pa->pa_tag, tpp->tpp_pmreg, 0);
    484 		}
    485 	}
    486 
    487 	/*
    488 	 * Map the device.
    489 	 */
    490 	ioh_valid = (pci_mapreg_map(pa, TULIP_PCI_IOBA,
    491 	    PCI_MAPREG_TYPE_IO, 0,
    492 	    &iot, &ioh, NULL, NULL) == 0);
    493 	memh_valid = (pci_mapreg_map(pa, TULIP_PCI_MMBA,
    494 	    PCI_MAPREG_TYPE_MEM|PCI_MAPREG_MEM_TYPE_32BIT, 0,
    495 	    &memt, &memh, NULL, NULL) == 0);
    496 
    497 	if (memh_valid) {
    498 		sc->sc_st = memt;
    499 		sc->sc_sh = memh;
    500 	} else if (ioh_valid) {
    501 		sc->sc_st = iot;
    502 		sc->sc_sh = ioh;
    503 	} else {
    504 		printf(": unable to map device registers\n");
    505 		return;
    506 	}
    507 
    508 	sc->sc_dmat = pa->pa_dmat;
    509 
    510 	/*
    511 	 * Make sure bus mastering is enabled.
    512 	 */
    513 	pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG,
    514 	    pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG) |
    515 	    PCI_COMMAND_MASTER_ENABLE);
    516 
    517 	/*
    518 	 * Get the cacheline size.
    519 	 */
    520 	sc->sc_cacheline = PCI_CACHELINE(pci_conf_read(pc, pa->pa_tag,
    521 	    PCI_BHLC_REG));
    522 
    523 	/*
    524 	 * Get PCI data moving command info.
    525 	 */
    526 	if (pa->pa_flags & PCI_FLAGS_MRL_OKAY)
    527 		sc->sc_flags |= TULIPF_MRL;
    528 	if (pa->pa_flags & PCI_FLAGS_MRM_OKAY)
    529 		sc->sc_flags |= TULIPF_MRM;
    530 	if (pa->pa_flags & PCI_FLAGS_MWI_OKAY)
    531 		sc->sc_flags |= TULIPF_MWI;
    532 
    533 	/*
    534 	 * Read the contents of the Ethernet Address ROM/SROM.
    535 	 */
    536 	memset(sc->sc_srom, 0, sizeof(sc->sc_srom));
    537 	switch (sc->sc_chip) {
    538 	case TULIP_CHIP_21040:
    539 		TULIP_WRITE(sc, CSR_MIIROM, MIIROM_SROMCS);
    540 		for (i = 0; i < sizeof(sc->sc_srom); i++) {
    541 			for (j = 0; j < 10000; j++) {
    542 				val = TULIP_READ(sc, CSR_MIIROM);
    543 				if ((val & MIIROM_DN) == 0)
    544 					break;
    545 			}
    546 			sc->sc_srom[i] = val & MIIROM_DATA;
    547 		}
    548 		break;
    549 
    550 	case TULIP_CHIP_82C168:
    551 	case TULIP_CHIP_82C169:
    552 	    {
    553 		u_int16_t *rombuf = (u_int16_t *)sc->sc_srom;
    554 
    555 		/*
    556 		 * The Lite-On PNIC stores the Ethernet address in
    557 		 * the first 3 words of the EEPROM.  EEPROM access
    558 		 * is not like the other Tulip chips.
    559 		 */
    560 		for (i = 0; i < 3; i++) {
    561 			TULIP_WRITE(sc, CSR_PNIC_SROMCTL,
    562 			    PNIC_SROMCTL_READ | i);
    563 			for (j = 0; j < 500; j++) {
    564 				delay(2);
    565 				val = TULIP_READ(sc, CSR_MIIROM);
    566 				if ((val & PNIC_MIIROM_BUSY) == 0)
    567 					break;
    568 			}
    569 			if (val & PNIC_MIIROM_BUSY) {
    570 				printf("%s: EEPROM timed out\n",
    571 				    sc->sc_dev.dv_xname);
    572 				return;
    573 			}
    574 			rombuf[i] = bswap16(val & PNIC_MIIROM_DATA);
    575 		}
    576 		break;
    577 	    }
    578 
    579 	default:
    580 		tlp_read_srom(sc, 0, sizeof(sc->sc_srom) >> 1, sc->sc_srom);
    581 #if 0
    582 		printf("SROM CONTENTS:");
    583 		for (i = 0; i < sizeof(sc->sc_srom); i++) {
    584 			if ((i % 8) == 0)
    585 				printf("\n\t");
    586 			printf("0x%02x ", sc->sc_srom[i]);
    587 		}
    588 		printf("\n");
    589 #endif
    590 	}
    591 
    592 	/*
    593 	 * Deal with chip/board quirks.  This includes setting up
    594 	 * the mediasw, and extracting the Ethernet address from
    595 	 * the rombuf.
    596 	 */
    597 	switch (sc->sc_chip) {
    598 	case TULIP_CHIP_21040:
    599 		/* Check for a slaved ROM on a multi-port board. */
    600 		tlp_pci_check_slaved(psc, TULIP_PCI_SHAREDROM,
    601 		    TULIP_PCI_SLAVEROM);
    602 		if (psc->sc_flags & TULIP_PCI_SLAVEROM)
    603 			memcpy(sc->sc_srom, psc->sc_master->sc_tulip.sc_srom,
    604 			    sizeof(sc->sc_srom));
    605 
    606 		/*
    607 		 * Parse the Ethernet Address ROM.
    608 		 */
    609 		if (tlp_parse_old_srom(sc, enaddr) == 0) {
    610 			printf("%s: unable to decode Ethernet Address ROM\n",
    611 			    sc->sc_dev.dv_xname);
    612 			return;
    613 		}
    614 
    615 		/*
    616 		 * If we have a slaved ROM, adjust the Ethernet address.
    617 		 */
    618 		if (psc->sc_flags & TULIP_PCI_SLAVEROM)
    619 			enaddr[5] +=
    620 			    sc->sc_devno - psc->sc_master->sc_tulip.sc_devno;
    621 
    622 		/*
    623 		 * All 21040 boards start out with the same
    624 		 * media switch.
    625 		 */
    626 		sc->sc_mediasw = &tlp_21040_mediasw;
    627 
    628 		/*
    629 		 * Deal with any quirks this board might have.
    630 		 */
    631 		tlp_pci_get_quirks(psc, enaddr, tlp_pci_21040_quirks);
    632 		break;
    633 
    634 	case TULIP_CHIP_21041:
    635 		/* Check for a slaved ROM on a multi-port board. */
    636 		tlp_pci_check_slaved(psc, TULIP_PCI_SHAREDROM,
    637 		    TULIP_PCI_SLAVEROM);
    638 		if (psc->sc_flags & TULIP_PCI_SLAVEROM)
    639 			memcpy(sc->sc_srom, psc->sc_master->sc_tulip.sc_srom,
    640 			    sizeof(sc->sc_srom));
    641 
    642 		/* Check for new format SROM. */
    643 		if (tlp_isv_srom_enaddr(sc, enaddr) == 0) {
    644 			/*
    645 			 * Not an ISV SROM; try the old DEC Ethernet Address
    646 			 * ROM format.
    647 			 */
    648 			if (tlp_parse_old_srom(sc, enaddr) == 0) {
    649 				printf("%s: unable to decode Ethernet "
    650 				    "Address ROM\n", sc->sc_dev.dv_xname);
    651 				return;
    652 			}
    653 		}
    654 
    655 		/*
    656 		 * All 21041 boards use the same media switch; they all
    657 		 * work basically the same!  Yippee!
    658 		 */
    659 		sc->sc_mediasw = &tlp_21041_mediasw;
    660 
    661 		/*
    662 		 * Deal with any quirks this board might have.
    663 		 */
    664 		tlp_pci_get_quirks(psc, enaddr, tlp_pci_21041_quirks);
    665 		break;
    666 
    667 	case TULIP_CHIP_21140:
    668 	case TULIP_CHIP_21140A:
    669 		/* Check for new format SROM. */
    670 		if (tlp_isv_srom_enaddr(sc, enaddr) == 0) {
    671 			/*
    672 			 * Not an ISV SROM; try the old DEC Ethernet Address
    673 			 * ROM format.
    674 			 */
    675 			if (tlp_parse_old_srom(sc, enaddr) == 0) {
    676 				printf("%s: unable to decode Ethernet "
    677 				    "Address ROM\n", sc->sc_dev.dv_xname);
    678 				return;
    679 			}
    680 		} else {
    681 			/*
    682 			 * We start out with the 2114x ISV media switch.
    683 			 * When we search for quirks, we may change to
    684 			 * a different switch.
    685 			 */
    686 			sc->sc_mediasw = &tlp_2114x_isv_mediasw;
    687 		}
    688 
    689 		/*
    690 		 * Deal with any quirks this board might have.
    691 		 */
    692 		tlp_pci_get_quirks(psc, enaddr, tlp_pci_21140_quirks);
    693 
    694 		/*
    695 		 * Bail out now if we can't deal with this board.
    696 		 */
    697 		if (sc->sc_mediasw == NULL)
    698 			goto cant_cope;
    699 		break;
    700 
    701 	case TULIP_CHIP_21142:
    702 	case TULIP_CHIP_21143:
    703 		/* Check for new format SROM. */
    704 		if (tlp_isv_srom_enaddr(sc, enaddr) == 0) {
    705 			/*
    706 			 * Not an ISV SROM; can't cope, for now.
    707 			 */
    708 			goto cant_cope;
    709 		} else {
    710 			/*
    711 			 * We start out with the 2114x ISV media switch.
    712 			 * When we search for quirks, we may change to
    713 			 * a different switch.
    714 			 */
    715 			sc->sc_mediasw = &tlp_2114x_isv_mediasw;
    716 		}
    717 
    718 		/*
    719 		 * Deal with any quirks this board might have.
    720 		 */
    721 		tlp_pci_get_quirks(psc, enaddr, tlp_pci_21142_quirks);
    722 
    723 		/*
    724 		 * Bail out now if we can't deal with this board.
    725 		 */
    726 		if (sc->sc_mediasw == NULL)
    727 			goto cant_cope;
    728 		break;
    729 
    730 	case TULIP_CHIP_82C168:
    731 	case TULIP_CHIP_82C169:
    732 		/*
    733 		 * Lite-On PNIC's Ethernet address is the first 6
    734 		 * bytes of its EEPROM.
    735 		 */
    736 		memcpy(enaddr, sc->sc_srom, ETHER_ADDR_LEN);
    737 
    738 		/*
    739 		 * Lite-On PNICs always use the same mediasw; we
    740 		 * select MII vs. internal NWAY automatically.
    741 		 */
    742 		sc->sc_mediasw = &tlp_pnic_mediasw;
    743 		break;
    744 
    745 	case TULIP_CHIP_MX98713:
    746 		/*
    747 		 * The Macronix MX98713 has an MII and GPIO, but no
    748 		 * internal Nway block.  This chip is basically a
    749 		 * perfect 21140A clone, with the exception of the
    750 		 * a magic register frobbing in order to make the
    751 		 * interface function.
    752 		 */
    753 		if (tlp_isv_srom_enaddr(sc, enaddr)) {
    754 			sc->sc_mediasw = &tlp_2114x_isv_mediasw;
    755 			break;
    756 		}
    757 		/* FALLTHROUGH */
    758 
    759 	case TULIP_CHIP_82C115:
    760 		/*
    761 		 * Yippee!  The Lite-On 82C115 is a clone of
    762 		 * the MX98725 (the data sheet even says `MXIC'
    763 		 * on it)!  Imagine that, a clone of a clone.
    764 		 *
    765 		 * The differences are really minimal:
    766 		 *
    767 		 *	- Wake-On-LAN support
    768 		 *	- 128-bit multicast hash table, rather than
    769 		 *	  the standard 512-bit hash table
    770 		 */
    771 		/* FALLTHROUGH */
    772 
    773 	case TULIP_CHIP_MX98713A:
    774 	case TULIP_CHIP_MX98715A:
    775 	case TULIP_CHIP_MX98725:
    776 		/*
    777 		 * The MX98713A has an MII as well as an internal Nway block,
    778 		 * but no GPIO.  The MX98715 and MX98725 have an internal
    779 		 * Nway block only.
    780 		 *
    781 		 * The internal Nway block, unlike the Lite-On PNIC's, does
    782 		 * just that - performs Nway.  Once autonegotiation completes,
    783 		 * we must program the GPR media information into the chip.
    784 		 *
    785 		 * The byte offset of the Ethernet address is stored at
    786 		 * offset 0x70.
    787 		 */
    788 		memcpy(enaddr, &sc->sc_srom[sc->sc_srom[0x70]], ETHER_ADDR_LEN);
    789 		sc->sc_mediasw = &tlp_pmac_mediasw;
    790 		break;
    791 
    792 	case TULIP_CHIP_WB89C840F:
    793 		/*
    794 		 * Winbond 89C840F's Ethernet address is the first
    795 		 * 6 bytes of its EEPROM.
    796 		 */
    797 		memcpy(enaddr, sc->sc_srom, ETHER_ADDR_LEN);
    798 
    799 		/*
    800 		 * Winbond 89C840F has an MII attached to the SIO.
    801 		 */
    802 		sc->sc_mediasw = &tlp_sio_mii_mediasw;
    803 		break;
    804 
    805 	case TULIP_CHIP_AL981:
    806 		/*
    807 		 * The ADMtek AL981's Ethernet address is located
    808 		 * at offset 8 of its EEPROM.
    809 		 */
    810 		memcpy(enaddr, &sc->sc_srom[8], ETHER_ADDR_LEN);
    811 
    812 		/*
    813 		 * ADMtek AL981 has a built-in PHY accessed through
    814 		 * special registers.
    815 		 */
    816 		sc->sc_mediasw = &tlp_al981_mediasw;
    817 		break;
    818 
    819 	default:
    820  cant_cope:
    821 		printf("%s: sorry, unable to handle your board\n",
    822 		    sc->sc_dev.dv_xname);
    823 		return;
    824 	}
    825 
    826 	/*
    827 	 * Handle shared interrupts.
    828 	 */
    829 	if (psc->sc_flags & TULIP_PCI_SHAREDINTR) {
    830 		if (psc->sc_master)
    831 			psc->sc_flags |= TULIP_PCI_SLAVEINTR;
    832 		else {
    833 			tlp_pci_check_slaved(psc, TULIP_PCI_SHAREDINTR,
    834 			    TULIP_PCI_SLAVEINTR);
    835 			if (psc->sc_master == NULL)
    836 				psc->sc_master = psc;
    837 		}
    838 		LIST_INSERT_HEAD(&psc->sc_master->sc_intrslaves,
    839 		    psc, sc_intrq);
    840 	}
    841 
    842 	if (psc->sc_flags & TULIP_PCI_SLAVEINTR) {
    843 		printf("%s: sharing interrupt with %s\n",
    844 		    sc->sc_dev.dv_xname,
    845 		    psc->sc_master->sc_tulip.sc_dev.dv_xname);
    846 	} else {
    847 		/*
    848 		 * Map and establish our interrupt.
    849 		 */
    850 		if (pci_intr_map(pc, pa->pa_intrtag, pa->pa_intrpin,
    851 		    pa->pa_intrline, &ih)) {
    852 			printf("%s: unable to map interrupt\n",
    853 			    sc->sc_dev.dv_xname);
    854 			return;
    855 		}
    856 		intrstr = pci_intr_string(pc, ih);
    857 		psc->sc_ih = pci_intr_establish(pc, ih, IPL_NET,
    858 		    (psc->sc_flags & TULIP_PCI_SHAREDINTR) ?
    859 		    tlp_pci_shared_intr : tlp_intr, sc);
    860 		if (psc->sc_ih == NULL) {
    861 			printf("%s: unable to establish interrupt",
    862 			    sc->sc_dev.dv_xname);
    863 			if (intrstr != NULL)
    864 				printf(" at %s", intrstr);
    865 			printf("\n");
    866 			return;
    867 		}
    868 		printf("%s: interrupting at %s\n", sc->sc_dev.dv_xname,
    869 		    intrstr);
    870 	}
    871 
    872 	/*
    873 	 * Finish off the attach.
    874 	 */
    875 	tlp_attach(sc, enaddr);
    876 }
    877 
    878 int
    879 tlp_pci_shared_intr(arg)
    880 	void *arg;
    881 {
    882 	struct tulip_pci_softc *master = arg, *slave;
    883 	int rv = 0;
    884 
    885 	for (slave = LIST_FIRST(&master->sc_intrslaves);
    886 	     slave != NULL;
    887 	     slave = LIST_NEXT(slave, sc_intrq))
    888 		rv |= tlp_intr(&slave->sc_tulip);
    889 
    890 	return (rv);
    891 }
    892 
    893 void
    894 tlp_pci_dec_quirks(psc, enaddr)
    895 	struct tulip_pci_softc *psc;
    896 	const u_int8_t *enaddr;
    897 {
    898 	struct tulip_softc *sc = &psc->sc_tulip;
    899 
    900 	/*
    901 	 * This isn't really a quirk-gathering device, really.  We
    902 	 * just want to get the spiffy DEC board name from the SROM.
    903 	 */
    904 	strcpy(sc->sc_name, "DEC ");
    905 
    906 	if (memcmp(&sc->sc_srom[29], "DE500", 5) == 0 ||
    907 	    memcmp(&sc->sc_srom[29], "DE450", 5) == 0)
    908 		memcpy(&sc->sc_name[4], &sc->sc_srom[29], 8);
    909 }
    910 
    911 void
    912 tlp_pci_znyx_21040_quirks(psc, enaddr)
    913 	struct tulip_pci_softc *psc;
    914 	const u_int8_t *enaddr;
    915 {
    916 	struct tulip_softc *sc = &psc->sc_tulip;
    917 	u_int16_t id = 0;
    918 
    919 	/*
    920 	 * If we have a slaved ROM, just copy the bits from the master.
    921 	 * This is in case we fail the ROM ID check (older boards) and
    922 	 * need to fall back on Ethernet address model checking; that
    923 	 * will fail for slave chips.
    924 	 */
    925 	if (psc->sc_flags & TULIP_PCI_SLAVEROM) {
    926 		strcpy(sc->sc_name, psc->sc_master->sc_tulip.sc_name);
    927 		sc->sc_mediasw = psc->sc_master->sc_tulip.sc_mediasw;
    928 		psc->sc_flags |=
    929 		    psc->sc_master->sc_flags & TULIP_PCI_SHAREDINTR;
    930 		return;
    931 	}
    932 
    933 	if (sc->sc_srom[32] == 0x4a && sc->sc_srom[33] == 0x52) {
    934 		id = sc->sc_srom[37] | (sc->sc_srom[36] << 8);
    935 		switch (id) {
    936  zx312:
    937 		case 0x0602:	/* ZX312 */
    938 			strcpy(sc->sc_name, "ZNYX ZX312");
    939 			return;
    940 
    941 		case 0x0622:	/* ZX312T */
    942 			strcpy(sc->sc_name, "ZNYX ZX312T");
    943 			sc->sc_mediasw = &tlp_21040_tp_mediasw;
    944 			return;
    945 
    946  zx314_inta:
    947 		case 0x0701:	/* ZX314 INTA */
    948 			psc->sc_flags |= TULIP_PCI_SHAREDINTR;
    949 			/* FALLTHROUGH */
    950 		case 0x0711:	/* ZX314 */
    951 			strcpy(sc->sc_name, "ZNYX ZX314");
    952 			psc->sc_flags |= TULIP_PCI_SHAREDROM;
    953 			sc->sc_mediasw = &tlp_21040_tp_mediasw;
    954 			return;
    955 
    956  zx315_inta:
    957 		case 0x0801:	/* ZX315 INTA */
    958 			psc->sc_flags |= TULIP_PCI_SHAREDINTR;
    959 			/* FALLTHROUGH */
    960 		case 0x0811:	/* ZX315 */
    961 			strcpy(sc->sc_name, "ZNYX ZX315");
    962 			psc->sc_flags |= TULIP_PCI_SHAREDROM;
    963 			return;
    964 
    965 		default:
    966 			id = 0;
    967 		}
    968 	}
    969 
    970 	/*
    971 	 * Deal with boards that have broken ROMs.
    972 	 */
    973 	if (id == 0) {
    974 		if ((enaddr[3] & ~3) == 0xf0 && (enaddr[5] & 3) == 0x00)
    975 			goto zx314_inta;
    976 		if ((enaddr[3] & ~3) == 0xf4 && (enaddr[5] & 1) == 0x00)
    977 			goto zx315_inta;
    978 		if ((enaddr[3] & ~3) == 0xec)
    979 			goto zx312;
    980 	}
    981 
    982 	strcpy(sc->sc_name, "ZNYX ZX31x");
    983 }
    984 
    985 void
    986 tlp_pci_smc_21040_quirks(psc, enaddr)
    987 	struct tulip_pci_softc *psc;
    988 	const u_int8_t *enaddr;
    989 {
    990 	struct tulip_softc *sc = &psc->sc_tulip;
    991 	u_int16_t id1, id2, ei;
    992 	int auibnc = 0, utp = 0;
    993 	char *cp;
    994 
    995 	id1 = sc->sc_srom[0x60] | (sc->sc_srom[0x61] << 8);
    996 	id2 = sc->sc_srom[0x62] | (sc->sc_srom[0x63] << 8);
    997 	ei  = sc->sc_srom[0x66] | (sc->sc_srom[0x67] << 8);
    998 
    999 	strcpy(sc->sc_name, "SMC 8432");
   1000 	cp = &sc->sc_name[8];
   1001 
   1002 	if ((id1 & 1) == 0) {
   1003 		*cp++ = 'B';
   1004 		auibnc = 1;
   1005 	}
   1006 	if ((id1 & 0xff) > 0x32) {
   1007 		*cp++ = 'T';
   1008 		utp = 1;
   1009 	}
   1010 	if ((id1 & 0x4000) == 0) {
   1011 		*cp++ = 'A';
   1012 		auibnc = 1;
   1013 	}
   1014 	if (id2 == 0x15) {
   1015 		sc->sc_name[7] = '4';
   1016 		*cp++ = '-';
   1017 		*cp++ = 'C';
   1018 		*cp++ = 'H';
   1019 		*cp++ = ei ? '2' : '1';
   1020 	}
   1021 	*cp = '\0';
   1022 
   1023 	if (utp != 0 && auibnc == 0)
   1024 		sc->sc_mediasw = &tlp_21040_tp_mediasw;
   1025 	else if (utp == 0 && auibnc != 0)
   1026 		sc->sc_mediasw = &tlp_21040_auibnc_mediasw;
   1027 }
   1028 
   1029 void
   1030 tlp_pci_cogent_21040_quirks(psc, enaddr)
   1031 	struct tulip_pci_softc *psc;
   1032 	const u_int8_t *enaddr;
   1033 {
   1034 
   1035 	strcpy(psc->sc_tulip.sc_name, "Cogent multi-port");
   1036 	psc->sc_flags |= TULIP_PCI_SHAREDINTR|TULIP_PCI_SHAREDROM;
   1037 }
   1038 
   1039 void
   1040 tlp_pci_accton_21040_quirks(psc, enaddr)
   1041 	struct tulip_pci_softc *psc;
   1042 	const u_int8_t *enaddr;
   1043 {
   1044 
   1045 	strcpy(psc->sc_tulip.sc_name, "ACCTON EN1203");
   1046 }
   1047 
   1048 void	tlp_pci_asante_21140_reset __P((struct tulip_softc *));
   1049 
   1050 void
   1051 tlp_pci_asante_21140_quirks(psc, enaddr)
   1052 	struct tulip_pci_softc *psc;
   1053 	const u_int8_t *enaddr;
   1054 {
   1055 	struct tulip_softc *sc = &psc->sc_tulip;
   1056 
   1057 	/*
   1058 	 * Some Asante boards don't use the ISV SROM format.  For
   1059 	 * those that don't, we initialize the GPIO direction bits,
   1060 	 * and provide our own reset hook, which resets the MII.
   1061 	 *
   1062 	 * All of these boards use SIO-attached-MII media.
   1063 	 */
   1064 	if (sc->sc_mediasw == &tlp_2114x_isv_mediasw)
   1065 		return;
   1066 
   1067 	strcpy(sc->sc_name, "Asante");
   1068 
   1069 	sc->sc_gp_dir = 0xbf;
   1070 	sc->sc_reset = tlp_pci_asante_21140_reset;
   1071 	sc->sc_mediasw = &tlp_sio_mii_mediasw;
   1072 }
   1073 
   1074 void
   1075 tlp_pci_asante_21140_reset(sc)
   1076 	struct tulip_softc *sc;
   1077 {
   1078 
   1079 	TULIP_WRITE(sc, CSR_GPP, GPP_GPC | sc->sc_gp_dir);
   1080 	TULIP_WRITE(sc, CSR_GPP, 0x8);
   1081 	delay(100);
   1082 	TULIP_WRITE(sc, CSR_GPP, 0);
   1083 }
   1084