if_gem_pci.c revision 1.25
1 /* $NetBSD: if_gem_pci.c,v 1.25 2008/01/05 20:30:22 jdc Exp $ */ 2 3 /* 4 * 5 * Copyright (C) 2001 Eduardo Horvath. 6 * All rights reserved. 7 * 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 * 30 */ 31 32 /* 33 * PCI bindings for Apple GMAC, Sun ERI and Sun GEM Ethernet controllers 34 */ 35 36 #include <sys/cdefs.h> 37 __KERNEL_RCSID(0, "$NetBSD: if_gem_pci.c,v 1.25 2008/01/05 20:30:22 jdc Exp $"); 38 39 #include <sys/param.h> 40 #include <sys/systm.h> 41 #include <sys/malloc.h> 42 #include <sys/kernel.h> 43 #include <sys/socket.h> 44 #include <sys/errno.h> 45 #include <sys/device.h> 46 47 #include <machine/endian.h> 48 49 #include <uvm/uvm_extern.h> 50 51 #include <net/if.h> 52 #include <net/if_dl.h> 53 #include <net/if_media.h> 54 #include <net/if_ether.h> 55 56 #if NBPFILTER > 0 57 #include <net/bpf.h> 58 #endif 59 60 #include <sys/bus.h> 61 #include <sys/intr.h> 62 63 #include <dev/mii/mii.h> 64 #include <dev/mii/miivar.h> 65 #include <dev/mii/mii_bitbang.h> 66 67 #include <dev/ic/gemreg.h> 68 #include <dev/ic/gemvar.h> 69 70 #include <dev/pci/pcivar.h> 71 #include <dev/pci/pcireg.h> 72 #include <dev/pci/pcidevs.h> 73 74 /* XXX Should use Properties when that's fleshed out. */ 75 #ifdef macppc 76 #include <dev/ofw/openfirm.h> 77 #endif /* macppc */ 78 #ifdef __sparc__ 79 #include <machine/promlib.h> 80 #endif 81 82 #ifndef GEM_USE_LOCAL_MAC_ADDRESS 83 #if defined (macppc) || defined (__sparc__) 84 #define GEM_USE_LOCAL_MAC_ADDRESS 0 /* use system-wide address */ 85 #else 86 #define GEM_USE_LOCAL_MAC_ADDRESS 1 87 #endif 88 #endif 89 90 91 struct gem_pci_softc { 92 struct gem_softc gsc_gem; /* GEM device */ 93 void *gsc_ih; 94 }; 95 96 int gem_match_pci(struct device *, struct cfdata *, void *); 97 void gem_attach_pci(struct device *, struct device *, void *); 98 99 CFATTACH_DECL(gem_pci, sizeof(struct gem_pci_softc), 100 gem_match_pci, gem_attach_pci, NULL, NULL); 101 102 /* 103 * Attach routines need to be split out to different bus-specific files. 104 */ 105 106 int 107 gem_match_pci(parent, cf, aux) 108 struct device *parent; 109 struct cfdata *cf; 110 void *aux; 111 { 112 struct pci_attach_args *pa = aux; 113 114 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 115 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK || 116 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK)) 117 return (1); 118 119 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 120 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 121 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2 || 122 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC3 || 123 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_SHASTA_GMAC || 124 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_K2_GMAC || 125 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_INTREPID2_GMAC)) 126 return (1); 127 128 129 return (0); 130 } 131 132 #if GEM_USE_LOCAL_MAC_ADDRESS 133 static inline int 134 gempromvalid(u_int8_t* buf) 135 { 136 return buf[0] == 0x18 && buf[1] == 0x00 && /* structure length */ 137 buf[2] == 0x00 && /* revision */ 138 (buf[3] == 0x00 || /* hme */ 139 buf[3] == 0x80) && /* qfe */ 140 buf[4] == PCI_SUBCLASS_NETWORK_ETHERNET && /* subclass code */ 141 buf[5] == PCI_CLASS_NETWORK; /* class code */ 142 } 143 144 static inline int 145 isshared_pins(u_int8_t* buf) 146 { 147 return buf[0] == 's' && buf[1] == 'h' && buf[2] == 'a' && 148 buf[3] == 'r' && buf[4] == 'e' && buf[5] == 'd' && 149 buf[6] == '-' && buf[7] == 'p' && buf[8] == 'i' && 150 buf[9] == 'n' && buf[10] == 's'; 151 } 152 #endif 153 154 static inline int 155 isserdes(u_int8_t* buf) 156 { 157 return buf[0] == 's' && buf[1] == 'e' && buf[2] == 'r' && 158 buf[3] == 'd' && buf[4] == 'e' && buf[5] == 's'; 159 } 160 161 void 162 gem_attach_pci(parent, self, aux) 163 struct device *parent, *self; 164 void *aux; 165 { 166 struct pci_attach_args *pa = aux; 167 struct gem_pci_softc *gsc = (void *)self; 168 struct gem_softc *sc = &gsc->gsc_gem; 169 pci_intr_handle_t ih; 170 const char *intrstr; 171 char devinfo[256]; 172 uint8_t enaddr[ETHER_ADDR_LEN]; 173 #if GEM_USE_LOCAL_MAC_ADDRESS 174 u_int8_t *enp; 175 bus_space_handle_t romh; 176 u_int8_t buf[0x0800]; 177 int dataoff, vpdoff, serdes; 178 #ifdef GEM_DEBUG 179 int i, j; 180 #endif 181 struct pci_vpd *vpd; 182 static const u_int8_t promhdr[] = { 0x55, 0xaa }; 183 #define PROMHDR_PTR_DATA 0x18 184 static const u_int8_t promdat[] = { 185 0x50, 0x43, 0x49, 0x52, /* "PCIR" */ 186 PCI_VENDOR_SUN & 0xff, PCI_VENDOR_SUN >> 8, 187 PCI_PRODUCT_SUN_GEMNETWORK & 0xff, 188 PCI_PRODUCT_SUN_GEMNETWORK >> 8 189 }; 190 #define PROMDATA_PTR_VPD 0x08 191 #define PROMDATA_DATA2 0x0a 192 #endif /* GEM_USE_LOCAL_MAC_ADDRESS */ 193 194 aprint_naive(": Ethernet controller\n"); 195 196 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 197 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, 198 PCI_REVISION(pa->pa_class)); 199 200 /* 201 * Some Sun GEMs/ERIs do have their intpin register bogusly set to 0, 202 * although it should be 1. correct that. 203 */ 204 if (pa->pa_intrpin == 0) 205 pa->pa_intrpin = 1; 206 207 sc->sc_variant = GEM_UNKNOWN; 208 209 sc->sc_dmatag = pa->pa_dmat; 210 211 sc->sc_flags |= GEM_PCI; 212 213 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN) { 214 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK) 215 sc->sc_variant = GEM_SUN_GEM; 216 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK) 217 sc->sc_variant = GEM_SUN_ERI; 218 } else if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE) { 219 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 220 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2 || 221 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC3 || 222 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_SHASTA_GMAC) 223 sc->sc_variant = GEM_APPLE_GMAC; 224 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_K2_GMAC) 225 sc->sc_variant = GEM_APPLE_K2_GMAC; 226 } 227 228 if (sc->sc_variant == GEM_UNKNOWN) { 229 aprint_error("%s: unknown adaptor\n", sc->sc_dev.dv_xname); 230 return; 231 } 232 233 #define PCI_GEM_BASEADDR (PCI_MAPREG_START + 0x00) 234 235 /* XXX Need to check for a 64-bit mem BAR? */ 236 if (pci_mapreg_map(pa, PCI_GEM_BASEADDR, 237 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 238 &sc->sc_bustag, &sc->sc_h1, NULL, NULL) != 0) 239 { 240 aprint_error("%s: unable to map device registers\n", 241 sc->sc_dev.dv_xname); 242 return; 243 } 244 if (bus_space_subregion(sc->sc_bustag, sc->sc_h1, 245 GEM_PCI_BANK2_OFFSET, GEM_PCI_BANK2_SIZE, &sc->sc_h2)) { 246 aprint_error("%s: unable to create bank 2 subregion\n", 247 sc->sc_dev.dv_xname); 248 return; 249 } 250 251 #if GEM_USE_LOCAL_MAC_ADDRESS 252 /* 253 * Dig out VPD (vital product data) and acquire Ethernet address. 254 * The VPD of gem resides in the PCI PROM (PCI FCode). 255 */ 256 /* 257 * ``Writing FCode 3.x Programs'' (newer ones, dated 1997 and later) 258 * chapter 2 describes the data structure. 259 */ 260 261 enp = NULL; 262 263 if (sc->sc_variant == GEM_SUN_GEM && 264 (bus_space_subregion(sc->sc_bustag, sc->sc_h1, 265 GEM_PCI_ROM_OFFSET, GEM_PCI_ROM_SIZE, &romh)) == 0) { 266 267 /* read PCI Expansion PROM Header */ 268 bus_space_read_region_1(sc->sc_bustag, 269 romh, 0, buf, sizeof buf); 270 271 /* Check for "shared-pins = serdes" in FCode. */ 272 i = 0; 273 serdes = 0; 274 while (i < (sizeof buf) - sizeof "serdes") { 275 if (!serdes) { 276 if (isserdes(&buf[i])) 277 serdes = 1; 278 } else { 279 if (isshared_pins(&buf[i])) 280 serdes = 2; 281 } 282 if (serdes == 2) { 283 sc->sc_flags |= GEM_SERDES; 284 break; 285 } 286 i++; 287 } 288 #ifdef GEM_DEBUG 289 /* PROM dump */ 290 printf("%s: PROM dump (0x0000 to %04lx)\n", sc->sc_dev.dv_xname, 291 (sizeof buf) - 1); 292 i = 0; 293 j = 0; 294 printf(" %04x ", i); 295 while (i < sizeof buf) { 296 printf("%02x ", buf[i]); 297 if (i && !(i % 8)) 298 printf(" "); 299 if (i && !(i % 16)) { 300 printf(" "); 301 while (j < i) { 302 if (buf[j] > 31 && buf[j] < 128) 303 printf("%c", buf[j]); 304 else 305 printf("."); 306 j++; 307 } 308 j = i; 309 printf("\n %04x ", i); 310 } 311 i++; 312 } 313 printf("\n"); 314 #endif 315 316 if (memcmp(buf, promhdr, sizeof promhdr) == 0 && 317 (dataoff = (buf[PROMHDR_PTR_DATA] | 318 (buf[PROMHDR_PTR_DATA + 1] << 8))) >= 0x1c) { 319 320 /* read PCI Expansion PROM Data */ 321 bus_space_read_region_1(sc->sc_bustag, romh, dataoff, 322 buf, 64); 323 if (memcmp(buf, promdat, sizeof promdat) == 0 && 324 gempromvalid(buf + PROMDATA_DATA2) && 325 (vpdoff = (buf[PROMDATA_PTR_VPD] | 326 (buf[PROMDATA_PTR_VPD + 1] << 8))) >= 0x1c) { 327 328 /* 329 * The VPD of gem is not in PCI 2.2 standard 330 * format. The length in the resource header 331 * is in big endian, and resources are not 332 * properly terminated (only one resource 333 * and no end tag). 334 */ 335 /* read PCI VPD */ 336 bus_space_read_region_1(sc->sc_bustag, romh, 337 vpdoff, buf, 64); 338 vpd = (void *)(buf + 3); 339 if (PCI_VPDRES_ISLARGE(buf[0]) && 340 PCI_VPDRES_LARGE_NAME(buf[0]) 341 == PCI_VPDRES_TYPE_VPD && 342 vpd->vpd_key0 == 0x4e /* N */ && 343 vpd->vpd_key1 == 0x41 /* A */ && 344 vpd->vpd_len == ETHER_ADDR_LEN) { 345 /* 346 * Ethernet address found 347 */ 348 enp = buf + 6; 349 } 350 } 351 } 352 } 353 354 if (enp) 355 memcpy(enaddr, enp, ETHER_ADDR_LEN); 356 else 357 #endif /* GEM_USE_LOCAL_MAC_ADDRESS */ 358 #ifdef __sparc__ 359 { 360 if (strcmp(prom_getpropstring(PCITAG_NODE(pa->pa_tag), 361 "shared-pins"), "serdes") == 0) 362 sc->sc_flags |= GEM_SERDES; 363 prom_getether(PCITAG_NODE(pa->pa_tag), enaddr); 364 } 365 #else 366 #ifdef macppc 367 { 368 int node; 369 char sp[6]; /* "serdes" */ 370 371 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 372 if (node == 0) { 373 aprint_error("%s: unable to locate OpenFirmware node\n", 374 sc->sc_dev.dv_xname); 375 return; 376 } 377 378 OF_getprop(node, "shared-pins", sp, sizeof(sp)); 379 if (isserdes(sp)) 380 sc->sc_flags |= GEM_SERDES; 381 OF_getprop(node, "local-mac-address", enaddr, sizeof(enaddr)); 382 } 383 #else 384 printf("%s: no Ethernet address found\n", sc->sc_dev.dv_xname); 385 #endif /* macppc */ 386 #endif /* __sparc__ */ 387 388 if (pci_intr_map(pa, &ih) != 0) { 389 aprint_error("%s: unable to map interrupt\n", 390 sc->sc_dev.dv_xname); 391 return; 392 } 393 intrstr = pci_intr_string(pa->pa_pc, ih); 394 gsc->gsc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, gem_intr, sc); 395 if (gsc->gsc_ih == NULL) { 396 aprint_error("%s: unable to establish interrupt", 397 sc->sc_dev.dv_xname); 398 if (intrstr != NULL) 399 aprint_normal(" at %s", intrstr); 400 aprint_normal("\n"); 401 return; 402 } 403 aprint_normal("%s: interrupting at %s\n", sc->sc_dev.dv_xname, intrstr); 404 405 /* Finish off the attach. */ 406 gem_attach(sc, enaddr); 407 } 408
Indexes created Thu Sep 25 16:09:42 GMT 2025