if_gem_pci.c revision 1.35
1 /* $NetBSD: if_gem_pci.c,v 1.35 2009/05/12 08:23:00 cegger 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 1.35 2009/05/12 08:23:00 cegger 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(device_t, cfdata_t, void *); 97 void gem_attach_pci(device_t, device_t, 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(device_t parent, cfdata_t cf, void *aux) 108 { 109 struct pci_attach_args *pa = aux; 110 111 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN && 112 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK || 113 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK)) 114 return (1); 115 116 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE && 117 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 118 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2 || 119 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC3 || 120 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_SHASTA_GMAC || 121 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_K2_GMAC || 122 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_SHASTA_GMAC || 123 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_INTREPID2_GMAC)) 124 return (1); 125 126 127 return (0); 128 } 129 130 #if GEM_USE_LOCAL_MAC_ADDRESS 131 static inline int 132 gempromvalid(u_int8_t* buf) 133 { 134 return buf[0] == 0x18 && buf[1] == 0x00 && /* structure length */ 135 buf[2] == 0x00 && /* revision */ 136 (buf[3] == 0x00 || /* hme */ 137 buf[3] == 0x80) && /* qfe */ 138 buf[4] == PCI_SUBCLASS_NETWORK_ETHERNET && /* subclass code */ 139 buf[5] == PCI_CLASS_NETWORK; /* class code */ 140 } 141 142 static inline int 143 isshared_pins(u_int8_t* buf) 144 { 145 return buf[0] == 's' && buf[1] == 'h' && buf[2] == 'a' && 146 buf[3] == 'r' && buf[4] == 'e' && buf[5] == 'd' && 147 buf[6] == '-' && buf[7] == 'p' && buf[8] == 'i' && 148 buf[9] == 'n' && buf[10] == 's'; 149 } 150 #endif 151 152 static inline int 153 isserdes(u_int8_t* buf) 154 { 155 return buf[0] == 's' && buf[1] == 'e' && buf[2] == 'r' && 156 buf[3] == 'd' && buf[4] == 'e' && buf[5] == 's'; 157 } 158 159 void 160 gem_attach_pci(device_t parent, device_t self, void *aux) 161 { 162 struct pci_attach_args *pa = aux; 163 struct gem_pci_softc *gsc = device_private(self); 164 struct gem_softc *sc = &gsc->gsc_gem; 165 pci_intr_handle_t ih; 166 const char *intrstr; 167 char devinfo[256]; 168 uint8_t enaddr[ETHER_ADDR_LEN]; 169 #if GEM_USE_LOCAL_MAC_ADDRESS 170 u_int8_t *enp; 171 bus_space_handle_t romh; 172 u_int8_t buf[0x0800]; 173 int dataoff, vpdoff, serdes; 174 #if GEM_USE_LOCAL_MAC_ADDRESS || defined(GEM_DEBUG) 175 int i; 176 #endif 177 #ifdef GEM_DEBUG 178 int j; 179 #endif 180 struct pci_vpd *vpd; 181 static const u_int8_t promhdr[] = { 0x55, 0xaa }; 182 #define PROMHDR_PTR_DATA 0x18 183 static const u_int8_t promdat[] = { 184 0x50, 0x43, 0x49, 0x52, /* "PCIR" */ 185 PCI_VENDOR_SUN & 0xff, PCI_VENDOR_SUN >> 8, 186 PCI_PRODUCT_SUN_GEMNETWORK & 0xff, 187 PCI_PRODUCT_SUN_GEMNETWORK >> 8 188 }; 189 #define PROMDATA_PTR_VPD 0x08 190 #define PROMDATA_DATA2 0x0a 191 #endif /* GEM_USE_LOCAL_MAC_ADDRESS */ 192 193 aprint_naive(": Ethernet controller\n"); 194 195 pci_devinfo(pa->pa_id, pa->pa_class, 0, devinfo, sizeof(devinfo)); 196 sc->sc_chiprev = PCI_REVISION(pa->pa_class); 197 aprint_normal(": %s (rev. 0x%02x)\n", devinfo, sc->sc_chiprev); 198 199 /* 200 * Some Sun GEMs/ERIs do have their intpin register bogusly set to 0, 201 * although it should be 1. correct that. 202 */ 203 if (pa->pa_intrpin == 0) 204 pa->pa_intrpin = 1; 205 206 sc->sc_variant = GEM_UNKNOWN; 207 208 sc->sc_dmatag = pa->pa_dmat; 209 210 sc->sc_flags |= GEM_PCI; 211 212 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_SUN) { 213 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_GEMNETWORK) 214 sc->sc_variant = GEM_SUN_GEM; 215 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_SUN_ERINETWORK) 216 sc->sc_variant = GEM_SUN_ERI; 217 } else if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_APPLE) { 218 if (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC || 219 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC2 || 220 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_GMAC3 || 221 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_SHASTA_GMAC || 222 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_APPLE_INTREPID2_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_dev(&sc->sc_dev, "unknown adaptor\n"); 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_dev(&sc->sc_dev, "unable to map device registers\n"); 241 return; 242 } 243 if (bus_space_subregion(sc->sc_bustag, sc->sc_h1, 244 GEM_PCI_BANK2_OFFSET, GEM_PCI_BANK2_SIZE, &sc->sc_h2)) { 245 aprint_error_dev(&sc->sc_dev, "unable to create bank 2 subregion\n"); 246 return; 247 } 248 249 #if GEM_USE_LOCAL_MAC_ADDRESS 250 /* 251 * Dig out VPD (vital product data) and acquire Ethernet address. 252 * The VPD of gem resides in the PCI PROM (PCI FCode). 253 */ 254 /* 255 * ``Writing FCode 3.x Programs'' (newer ones, dated 1997 and later) 256 * chapter 2 describes the data structure. 257 */ 258 259 enp = NULL; 260 261 if (sc->sc_variant == GEM_SUN_GEM && 262 (bus_space_subregion(sc->sc_bustag, sc->sc_h1, 263 GEM_PCI_ROM_OFFSET, GEM_PCI_ROM_SIZE, &romh)) == 0) { 264 265 /* read PCI Expansion PROM Header */ 266 bus_space_read_region_1(sc->sc_bustag, 267 romh, 0, buf, sizeof buf); 268 269 /* Check for "shared-pins = serdes" in FCode. */ 270 i = 0; 271 serdes = 0; 272 while (i < (sizeof buf) - sizeof "serdes") { 273 if (!serdes) { 274 if (isserdes(&buf[i])) 275 serdes = 1; 276 } else { 277 if (isshared_pins(&buf[i])) 278 serdes = 2; 279 } 280 if (serdes == 2) { 281 sc->sc_flags |= GEM_SERDES; 282 break; 283 } 284 i++; 285 } 286 #ifdef GEM_DEBUG 287 /* PROM dump */ 288 printf("%s: PROM dump (0x0000 to %04lx)\n", device_xname(&sc->sc_dev), 289 (sizeof buf) - 1); 290 i = 0; 291 j = 0; 292 printf(" %04x ", i); 293 while (i < sizeof buf) { 294 printf("%02x ", buf[i]); 295 if (i && !(i % 8)) 296 printf(" "); 297 if (i && !(i % 16)) { 298 printf(" "); 299 while (j < i) { 300 if (buf[j] > 31 && buf[j] < 128) 301 printf("%c", buf[j]); 302 else 303 printf("."); 304 j++; 305 } 306 j = i; 307 printf("\n %04x ", i); 308 } 309 i++; 310 } 311 printf("\n"); 312 #endif 313 314 if (memcmp(buf, promhdr, sizeof promhdr) == 0 && 315 (dataoff = (buf[PROMHDR_PTR_DATA] | 316 (buf[PROMHDR_PTR_DATA + 1] << 8))) >= 0x1c) { 317 318 /* read PCI Expansion PROM Data */ 319 bus_space_read_region_1(sc->sc_bustag, romh, dataoff, 320 buf, 64); 321 if (memcmp(buf, promdat, sizeof promdat) == 0 && 322 gempromvalid(buf + PROMDATA_DATA2) && 323 (vpdoff = (buf[PROMDATA_PTR_VPD] | 324 (buf[PROMDATA_PTR_VPD + 1] << 8))) >= 0x1c) { 325 326 /* 327 * The VPD of gem is not in PCI 2.2 standard 328 * format. The length in the resource header 329 * is in big endian, and resources are not 330 * properly terminated (only one resource 331 * and no end tag). 332 */ 333 /* read PCI VPD */ 334 bus_space_read_region_1(sc->sc_bustag, romh, 335 vpdoff, buf, 64); 336 vpd = (void *)(buf + 3); 337 if (PCI_VPDRES_ISLARGE(buf[0]) && 338 PCI_VPDRES_LARGE_NAME(buf[0]) 339 == PCI_VPDRES_TYPE_VPD && 340 vpd->vpd_key0 == 0x4e /* N */ && 341 vpd->vpd_key1 == 0x41 /* A */ && 342 vpd->vpd_len == ETHER_ADDR_LEN) { 343 /* 344 * Ethernet address found 345 */ 346 enp = buf + 6; 347 } 348 } 349 } 350 } 351 352 if (enp) 353 memcpy(enaddr, enp, ETHER_ADDR_LEN); 354 else 355 #endif /* GEM_USE_LOCAL_MAC_ADDRESS */ 356 #ifdef __sparc__ 357 { 358 if (strcmp(prom_getpropstring(PCITAG_NODE(pa->pa_tag), 359 "shared-pins"), "serdes") == 0) 360 sc->sc_flags |= GEM_SERDES; 361 prom_getether(PCITAG_NODE(pa->pa_tag), enaddr); 362 } 363 #else 364 #ifdef macppc 365 { 366 int node; 367 char sp[6]; /* "serdes" */ 368 369 node = pcidev_to_ofdev(pa->pa_pc, pa->pa_tag); 370 if (node == 0) { 371 aprint_error_dev(&sc->sc_dev, "unable to locate OpenFirmware node\n"); 372 return; 373 } 374 375 OF_getprop(node, "shared-pins", sp, sizeof(sp)); 376 if (isserdes(sp)) 377 sc->sc_flags |= GEM_SERDES; 378 OF_getprop(node, "local-mac-address", enaddr, sizeof(enaddr)); 379 } 380 #else 381 printf("%s: no Ethernet address found\n", device_xname(&sc->sc_dev)); 382 #endif /* macppc */ 383 #endif /* __sparc__ */ 384 385 if (pci_intr_map(pa, &ih) != 0) { 386 aprint_error_dev(&sc->sc_dev, "unable to map interrupt\n"); 387 return; 388 } 389 intrstr = pci_intr_string(pa->pa_pc, ih); 390 gsc->gsc_ih = pci_intr_establish(pa->pa_pc, ih, IPL_NET, gem_intr, sc); 391 if (gsc->gsc_ih == NULL) { 392 aprint_error_dev(&sc->sc_dev, "unable to establish interrupt"); 393 if (intrstr != NULL) 394 aprint_normal(" at %s", intrstr); 395 aprint_normal("\n"); 396 return; 397 } 398 aprint_normal_dev(&sc->sc_dev, "interrupting at %s\n", intrstr); 399 400 /* Finish off the attach. */ 401 gem_attach(sc, enaddr); 402 } 403
Indexes created Thu Sep 25 15:09:46 GMT 2025