if_bge.c revision 1.18
1 /* $NetBSD: if_bge.c,v 1.18 2002/07/13 22:48:40 thorpej Exp $ */ 2 3 /* 4 * Copyright (c) 2001 Wind River Systems 5 * Copyright (c) 1997, 1998, 1999, 2001 6 * Bill Paul <wpaul (at) windriver.com>. All rights reserved. 7 * 8 * Redistribution and use in source and binary forms, with or without 9 * modification, are permitted provided that the following conditions 10 * are met: 11 * 1. Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * 2. Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in the 15 * documentation and/or other materials provided with the distribution. 16 * 3. All advertising materials mentioning features or use of this software 17 * must display the following acknowledgement: 18 * This product includes software developed by Bill Paul. 19 * 4. Neither the name of the author nor the names of any co-contributors 20 * may be used to endorse or promote products derived from this software 21 * without specific prior written permission. 22 * 23 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 26 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 27 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 28 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 29 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 30 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 31 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 32 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 33 * THE POSSIBILITY OF SUCH DAMAGE. 34 * 35 * $FreeBSD: if_bge.c,v 1.13 2002/04/04 06:01:31 wpaul Exp $ 36 */ 37 38 /* 39 * Broadcom BCM570x family gigabit ethernet driver for NetBSD. 40 * 41 * NetBSD version by: 42 * 43 * Frank van der Linden <fvdl (at) wasabisystems.com> 44 * Jason Thorpe <thorpej (at) wasabisystems.com> 45 * 46 * Originally written for FreeBSD by Bill Paul <wpaul (at) windriver.com> 47 * Senior Engineer, Wind River Systems 48 */ 49 50 /* 51 * The Broadcom BCM5700 is based on technology originally developed by 52 * Alteon Networks as part of the Tigon I and Tigon II gigabit ethernet 53 * MAC chips. The BCM5700, sometimes refered to as the Tigon III, has 54 * two on-board MIPS R4000 CPUs and can have as much as 16MB of external 55 * SSRAM. The BCM5700 supports TCP, UDP and IP checksum offload, jumbo 56 * frames, highly configurable RX filtering, and 16 RX and TX queues 57 * (which, along with RX filter rules, can be used for QOS applications). 58 * Other features, such as TCP segmentation, may be available as part 59 * of value-added firmware updates. Unlike the Tigon I and Tigon II, 60 * firmware images can be stored in hardware and need not be compiled 61 * into the driver. 62 * 63 * The BCM5700 supports the PCI v2.2 and PCI-X v1.0 standards, and will 64 * function in a 32-bit/64-bit 33/66Mhz bus, or a 64-bit/133Mhz bus. 65 * 66 * The BCM5701 is a single-chip solution incorporating both the BCM5700 67 * MAC and a BCM5401 10/100/1000 PHY. Unlike the BCM5700, the BCM5700 68 * does not support external SSRAM. 69 * 70 * Broadcom also produces a variation of the BCM5700 under the "Altima" 71 * brand name, which is functionally similar but lacks PCI-X support. 72 * 73 * Without external SSRAM, you can only have at most 4 TX rings, 74 * and the use of the mini RX ring is disabled. This seems to imply 75 * that these features are simply not available on the BCM5701. As a 76 * result, this driver does not implement any support for the mini RX 77 * ring. 78 */ 79 80 #include "bpfilter.h" 81 #include "vlan.h" 82 83 #include <sys/param.h> 84 #include <sys/systm.h> 85 #include <sys/callout.h> 86 #include <sys/sockio.h> 87 #include <sys/mbuf.h> 88 #include <sys/malloc.h> 89 #include <sys/kernel.h> 90 #include <sys/device.h> 91 #include <sys/socket.h> 92 93 #include <net/if.h> 94 #include <net/if_dl.h> 95 #include <net/if_media.h> 96 #include <net/if_ether.h> 97 98 #ifdef INET 99 #include <netinet/in.h> 100 #include <netinet/in_systm.h> 101 #include <netinet/in_var.h> 102 #include <netinet/ip.h> 103 #endif 104 105 #if NBPFILTER > 0 106 #include <net/bpf.h> 107 #endif 108 109 #include <dev/pci/pcireg.h> 110 #include <dev/pci/pcivar.h> 111 #include <dev/pci/pcidevs.h> 112 113 #include <dev/mii/mii.h> 114 #include <dev/mii/miivar.h> 115 #include <dev/mii/miidevs.h> 116 #include <dev/mii/brgphyreg.h> 117 118 #include <dev/pci/if_bgereg.h> 119 120 #include <uvm/uvm_extern.h> 121 122 int bge_probe(struct device *, struct cfdata *, void *); 123 void bge_attach(struct device *, struct device *, void *); 124 void bge_release_resources(struct bge_softc *); 125 void bge_txeof(struct bge_softc *); 126 void bge_rxeof(struct bge_softc *); 127 128 void bge_tick(void *); 129 void bge_stats_update(struct bge_softc *); 130 int bge_encap(struct bge_softc *, struct mbuf *, u_int32_t *); 131 132 int bge_intr(void *); 133 void bge_start(struct ifnet *); 134 int bge_ioctl(struct ifnet *, u_long, caddr_t); 135 int bge_init(struct ifnet *); 136 void bge_stop(struct bge_softc *); 137 void bge_watchdog(struct ifnet *); 138 void bge_shutdown(void *); 139 int bge_ifmedia_upd(struct ifnet *); 140 void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *); 141 142 u_int8_t bge_eeprom_getbyte(struct bge_softc *, int, u_int8_t *); 143 int bge_read_eeprom(struct bge_softc *, caddr_t, int, int); 144 145 void bge_setmulti(struct bge_softc *); 146 147 void bge_handle_events(struct bge_softc *); 148 int bge_alloc_jumbo_mem(struct bge_softc *); 149 void bge_free_jumbo_mem(struct bge_softc *); 150 void *bge_jalloc(struct bge_softc *); 151 void bge_jfree(struct mbuf *, caddr_t, u_int, void *); 152 int bge_newbuf_std(struct bge_softc *, int, struct mbuf *, bus_dmamap_t); 153 int bge_newbuf_jumbo(struct bge_softc *, int, struct mbuf *); 154 int bge_init_rx_ring_std(struct bge_softc *); 155 void bge_free_rx_ring_std(struct bge_softc *); 156 int bge_init_rx_ring_jumbo(struct bge_softc *); 157 void bge_free_rx_ring_jumbo(struct bge_softc *); 158 void bge_free_tx_ring(struct bge_softc *); 159 int bge_init_tx_ring(struct bge_softc *); 160 161 int bge_chipinit(struct bge_softc *); 162 int bge_blockinit(struct bge_softc *); 163 164 #ifdef notdef 165 u_int8_t bge_vpd_readbyte(struct bge_softc *, int); 166 void bge_vpd_read_res(struct bge_softc *, struct vpd_res *, int); 167 void bge_vpd_read(struct bge_softc *); 168 #endif 169 170 u_int32_t bge_readmem_ind(struct bge_softc *, int); 171 void bge_writemem_ind(struct bge_softc *, int, int); 172 #ifdef notdef 173 u_int32_t bge_readreg_ind(struct bge_softc *, int); 174 #endif 175 void bge_writereg_ind(struct bge_softc *, int, int); 176 177 int bge_miibus_readreg(struct device *, int, int); 178 void bge_miibus_writereg(struct device *, int, int, int); 179 void bge_miibus_statchg(struct device *); 180 181 void bge_reset(struct bge_softc *); 182 183 void bge_dump_status(struct bge_softc *); 184 void bge_dump_rxbd(struct bge_rx_bd *); 185 186 #define BGE_DEBUG 187 #ifdef BGE_DEBUG 188 #define DPRINTF(x) if (bgedebug) printf x 189 #define DPRINTFN(n,x) if (bgedebug >= (n)) printf x 190 int bgedebug = 0; 191 #else 192 #define DPRINTF(x) 193 #define DPRINTFN(n,x) 194 #endif 195 196 /* Various chip quirks. */ 197 #define BGE_QUIRK_LINK_STATE_BROKEN 0x00000001 198 #define BGE_QUIRK_CSUM_BROKEN 0x00000002 199 200 struct cfattach bge_ca = { 201 sizeof(struct bge_softc), bge_probe, bge_attach 202 }; 203 204 u_int32_t 205 bge_readmem_ind(sc, off) 206 struct bge_softc *sc; 207 int off; 208 { 209 struct pci_attach_args *pa = &(sc->bge_pa); 210 pcireg_t val; 211 212 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_BASEADDR, off); 213 val = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_DATA); 214 return val; 215 } 216 217 void 218 bge_writemem_ind(sc, off, val) 219 struct bge_softc *sc; 220 int off, val; 221 { 222 struct pci_attach_args *pa = &(sc->bge_pa); 223 224 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_BASEADDR, off); 225 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_DATA, val); 226 } 227 228 #ifdef notdef 229 u_int32_t 230 bge_readreg_ind(sc, off) 231 struct bge_softc *sc; 232 int off; 233 { 234 struct pci_attach_args *pa = &(sc->bge_pa); 235 236 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_BASEADDR, off); 237 return(pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_DATA)); 238 } 239 #endif 240 241 void 242 bge_writereg_ind(sc, off, val) 243 struct bge_softc *sc; 244 int off, val; 245 { 246 struct pci_attach_args *pa = &(sc->bge_pa); 247 248 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_BASEADDR, off); 249 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_DATA, val); 250 } 251 252 #ifdef notdef 253 u_int8_t 254 bge_vpd_readbyte(sc, addr) 255 struct bge_softc *sc; 256 int addr; 257 { 258 int i; 259 u_int32_t val; 260 struct pci_attach_args *pa = &(sc->bge_pa); 261 262 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_ADDR, addr); 263 for (i = 0; i < BGE_TIMEOUT * 10; i++) { 264 DELAY(10); 265 if (pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_ADDR) & 266 BGE_VPD_FLAG) 267 break; 268 } 269 270 if (i == BGE_TIMEOUT) { 271 printf("%s: VPD read timed out\n", sc->bge_dev.dv_xname); 272 return(0); 273 } 274 275 val = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_DATA); 276 277 return((val >> ((addr % 4) * 8)) & 0xFF); 278 } 279 280 void 281 bge_vpd_read_res(sc, res, addr) 282 struct bge_softc *sc; 283 struct vpd_res *res; 284 int addr; 285 { 286 int i; 287 u_int8_t *ptr; 288 289 ptr = (u_int8_t *)res; 290 for (i = 0; i < sizeof(struct vpd_res); i++) 291 ptr[i] = bge_vpd_readbyte(sc, i + addr); 292 } 293 294 void 295 bge_vpd_read(sc) 296 struct bge_softc *sc; 297 { 298 int pos = 0, i; 299 struct vpd_res res; 300 301 if (sc->bge_vpd_prodname != NULL) 302 free(sc->bge_vpd_prodname, M_DEVBUF); 303 if (sc->bge_vpd_readonly != NULL) 304 free(sc->bge_vpd_readonly, M_DEVBUF); 305 sc->bge_vpd_prodname = NULL; 306 sc->bge_vpd_readonly = NULL; 307 308 bge_vpd_read_res(sc, &res, pos); 309 310 if (res.vr_id != VPD_RES_ID) { 311 printf("%s: bad VPD resource id: expected %x got %x\n", 312 sc->bge_dev.dv_xname, VPD_RES_ID, res.vr_id); 313 return; 314 } 315 316 pos += sizeof(res); 317 sc->bge_vpd_prodname = malloc(res.vr_len + 1, M_DEVBUF, M_NOWAIT); 318 if (sc->bge_vpd_prodname == NULL) 319 panic("bge_vpd_read"); 320 for (i = 0; i < res.vr_len; i++) 321 sc->bge_vpd_prodname[i] = bge_vpd_readbyte(sc, i + pos); 322 sc->bge_vpd_prodname[i] = '\0'; 323 pos += i; 324 325 bge_vpd_read_res(sc, &res, pos); 326 327 if (res.vr_id != VPD_RES_READ) { 328 printf("%s: bad VPD resource id: expected %x got %x\n", 329 sc->bge_dev.dv_xname, VPD_RES_READ, res.vr_id); 330 return; 331 } 332 333 pos += sizeof(res); 334 sc->bge_vpd_readonly = malloc(res.vr_len, M_DEVBUF, M_NOWAIT); 335 if (sc->bge_vpd_readonly == NULL) 336 panic("bge_vpd_read"); 337 for (i = 0; i < res.vr_len + 1; i++) 338 sc->bge_vpd_readonly[i] = bge_vpd_readbyte(sc, i + pos); 339 } 340 #endif 341 342 /* 343 * Read a byte of data stored in the EEPROM at address 'addr.' The 344 * BCM570x supports both the traditional bitbang interface and an 345 * auto access interface for reading the EEPROM. We use the auto 346 * access method. 347 */ 348 u_int8_t 349 bge_eeprom_getbyte(sc, addr, dest) 350 struct bge_softc *sc; 351 int addr; 352 u_int8_t *dest; 353 { 354 int i; 355 u_int32_t byte = 0; 356 357 /* 358 * Enable use of auto EEPROM access so we can avoid 359 * having to use the bitbang method. 360 */ 361 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM); 362 363 /* Reset the EEPROM, load the clock period. */ 364 CSR_WRITE_4(sc, BGE_EE_ADDR, 365 BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL)); 366 DELAY(20); 367 368 /* Issue the read EEPROM command. */ 369 CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr); 370 371 /* Wait for completion */ 372 for(i = 0; i < BGE_TIMEOUT * 10; i++) { 373 DELAY(10); 374 if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE) 375 break; 376 } 377 378 if (i == BGE_TIMEOUT) { 379 printf("%s: eeprom read timed out\n", sc->bge_dev.dv_xname); 380 return(0); 381 } 382 383 /* Get result. */ 384 byte = CSR_READ_4(sc, BGE_EE_DATA); 385 386 *dest = (byte >> ((addr % 4) * 8)) & 0xFF; 387 388 return(0); 389 } 390 391 /* 392 * Read a sequence of bytes from the EEPROM. 393 */ 394 int 395 bge_read_eeprom(sc, dest, off, cnt) 396 struct bge_softc *sc; 397 caddr_t dest; 398 int off; 399 int cnt; 400 { 401 int err = 0, i; 402 u_int8_t byte = 0; 403 404 for (i = 0; i < cnt; i++) { 405 err = bge_eeprom_getbyte(sc, off + i, &byte); 406 if (err) 407 break; 408 *(dest + i) = byte; 409 } 410 411 return(err ? 1 : 0); 412 } 413 414 int 415 bge_miibus_readreg(dev, phy, reg) 416 struct device *dev; 417 int phy, reg; 418 { 419 struct bge_softc *sc = (struct bge_softc *)dev; 420 struct ifnet *ifp; 421 u_int32_t val; 422 int i; 423 424 ifp = &sc->ethercom.ec_if; 425 426 if (sc->bge_asicrev == BGE_ASICREV_BCM5701_B5 && phy != 1) 427 return(0); 428 429 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ|BGE_MICOMM_BUSY| 430 BGE_MIPHY(phy)|BGE_MIREG(reg)); 431 432 for (i = 0; i < BGE_TIMEOUT; i++) { 433 val = CSR_READ_4(sc, BGE_MI_COMM); 434 if (!(val & BGE_MICOMM_BUSY)) 435 break; 436 delay(10); 437 } 438 439 if (i == BGE_TIMEOUT) { 440 printf("%s: PHY read timed out\n", sc->bge_dev.dv_xname); 441 return(0); 442 } 443 444 val = CSR_READ_4(sc, BGE_MI_COMM); 445 446 if (val & BGE_MICOMM_READFAIL) 447 return(0); 448 449 return(val & 0xFFFF); 450 } 451 452 void 453 bge_miibus_writereg(dev, phy, reg, val) 454 struct device *dev; 455 int phy, reg, val; 456 { 457 struct bge_softc *sc = (struct bge_softc *)dev; 458 int i; 459 460 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE|BGE_MICOMM_BUSY| 461 BGE_MIPHY(phy)|BGE_MIREG(reg)|val); 462 463 for (i = 0; i < BGE_TIMEOUT; i++) { 464 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) 465 break; 466 delay(10); 467 } 468 469 if (i == BGE_TIMEOUT) { 470 printf("%s: PHY read timed out\n", sc->bge_dev.dv_xname); 471 } 472 } 473 474 void 475 bge_miibus_statchg(dev) 476 struct device *dev; 477 { 478 struct bge_softc *sc = (struct bge_softc *)dev; 479 struct mii_data *mii = &sc->bge_mii; 480 481 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE); 482 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 483 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII); 484 } else { 485 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII); 486 } 487 488 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) { 489 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); 490 } else { 491 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); 492 } 493 } 494 495 /* 496 * Handle events that have triggered interrupts. 497 */ 498 void 499 bge_handle_events(sc) 500 struct bge_softc *sc; 501 { 502 503 return; 504 } 505 506 /* 507 * Memory management for jumbo frames. 508 */ 509 510 int 511 bge_alloc_jumbo_mem(sc) 512 struct bge_softc *sc; 513 { 514 caddr_t ptr, kva; 515 bus_dma_segment_t seg; 516 int i, rseg, state, error; 517 struct bge_jpool_entry *entry; 518 519 state = error = 0; 520 521 /* Grab a big chunk o' storage. */ 522 if (bus_dmamem_alloc(sc->bge_dmatag, BGE_JMEM, PAGE_SIZE, 0, 523 &seg, 1, &rseg, BUS_DMA_NOWAIT)) { 524 printf("%s: can't alloc rx buffers\n", sc->bge_dev.dv_xname); 525 return ENOBUFS; 526 } 527 528 state = 1; 529 if (bus_dmamem_map(sc->bge_dmatag, &seg, rseg, BGE_JMEM, &kva, 530 BUS_DMA_NOWAIT)) { 531 printf("%s: can't map dma buffers (%d bytes)\n", 532 sc->bge_dev.dv_xname, (int)BGE_JMEM); 533 error = ENOBUFS; 534 goto out; 535 } 536 537 state = 2; 538 if (bus_dmamap_create(sc->bge_dmatag, BGE_JMEM, 1, BGE_JMEM, 0, 539 BUS_DMA_NOWAIT, &sc->bge_cdata.bge_rx_jumbo_map)) { 540 printf("%s: can't create dma map\n", sc->bge_dev.dv_xname); 541 error = ENOBUFS; 542 goto out; 543 } 544 545 state = 3; 546 if (bus_dmamap_load(sc->bge_dmatag, sc->bge_cdata.bge_rx_jumbo_map, 547 kva, BGE_JMEM, NULL, BUS_DMA_NOWAIT)) { 548 printf("%s: can't load dma map\n", sc->bge_dev.dv_xname); 549 error = ENOBUFS; 550 goto out; 551 } 552 553 state = 4; 554 sc->bge_cdata.bge_jumbo_buf = (caddr_t)kva; 555 DPRINTFN(1,("bge_jumbo_buf = 0x%p\n", sc->bge_cdata.bge_jumbo_buf)); 556 557 SLIST_INIT(&sc->bge_jfree_listhead); 558 SLIST_INIT(&sc->bge_jinuse_listhead); 559 560 /* 561 * Now divide it up into 9K pieces and save the addresses 562 * in an array. 563 */ 564 ptr = sc->bge_cdata.bge_jumbo_buf; 565 for (i = 0; i < BGE_JSLOTS; i++) { 566 sc->bge_cdata.bge_jslots[i] = ptr; 567 ptr += BGE_JLEN; 568 entry = malloc(sizeof(struct bge_jpool_entry), 569 M_DEVBUF, M_NOWAIT); 570 if (entry == NULL) { 571 printf("%s: no memory for jumbo buffer queue!\n", 572 sc->bge_dev.dv_xname); 573 error = ENOBUFS; 574 goto out; 575 } 576 entry->slot = i; 577 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, 578 entry, jpool_entries); 579 } 580 out: 581 if (error != 0) { 582 switch (state) { 583 case 4: 584 bus_dmamap_unload(sc->bge_dmatag, 585 sc->bge_cdata.bge_rx_jumbo_map); 586 case 3: 587 bus_dmamap_destroy(sc->bge_dmatag, 588 sc->bge_cdata.bge_rx_jumbo_map); 589 case 2: 590 bus_dmamem_unmap(sc->bge_dmatag, kva, BGE_JMEM); 591 case 1: 592 bus_dmamem_free(sc->bge_dmatag, &seg, rseg); 593 break; 594 default: 595 break; 596 } 597 } 598 599 return error; 600 } 601 602 /* 603 * Allocate a jumbo buffer. 604 */ 605 void * 606 bge_jalloc(sc) 607 struct bge_softc *sc; 608 { 609 struct bge_jpool_entry *entry; 610 611 entry = SLIST_FIRST(&sc->bge_jfree_listhead); 612 613 if (entry == NULL) { 614 printf("%s: no free jumbo buffers\n", sc->bge_dev.dv_xname); 615 return(NULL); 616 } 617 618 SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jpool_entries); 619 SLIST_INSERT_HEAD(&sc->bge_jinuse_listhead, entry, jpool_entries); 620 return(sc->bge_cdata.bge_jslots[entry->slot]); 621 } 622 623 /* 624 * Release a jumbo buffer. 625 */ 626 void 627 bge_jfree(m, buf, size, arg) 628 struct mbuf *m; 629 caddr_t buf; 630 u_int size; 631 void *arg; 632 { 633 struct bge_jpool_entry *entry; 634 struct bge_softc *sc; 635 int i, s; 636 637 /* Extract the softc struct pointer. */ 638 sc = (struct bge_softc *)arg; 639 640 if (sc == NULL) 641 panic("bge_jfree: can't find softc pointer!"); 642 643 /* calculate the slot this buffer belongs to */ 644 645 i = ((caddr_t)buf 646 - (caddr_t)sc->bge_cdata.bge_jumbo_buf) / BGE_JLEN; 647 648 if ((i < 0) || (i >= BGE_JSLOTS)) 649 panic("bge_jfree: asked to free buffer that we don't manage!"); 650 651 s = splvm(); 652 entry = SLIST_FIRST(&sc->bge_jinuse_listhead); 653 if (entry == NULL) 654 panic("bge_jfree: buffer not in use!"); 655 entry->slot = i; 656 SLIST_REMOVE_HEAD(&sc->bge_jinuse_listhead, jpool_entries); 657 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jpool_entries); 658 659 if (__predict_true(m != NULL)) 660 pool_cache_put(&mbpool_cache, m); 661 splx(s); 662 } 663 664 665 /* 666 * Intialize a standard receive ring descriptor. 667 */ 668 int 669 bge_newbuf_std(sc, i, m, dmamap) 670 struct bge_softc *sc; 671 int i; 672 struct mbuf *m; 673 bus_dmamap_t dmamap; 674 { 675 struct mbuf *m_new = NULL; 676 struct bge_rx_bd *r; 677 int error; 678 679 if (dmamap == NULL) { 680 error = bus_dmamap_create(sc->bge_dmatag, MCLBYTES, 1, 681 MCLBYTES, 0, BUS_DMA_NOWAIT, &dmamap); 682 if (error != 0) 683 return error; 684 } 685 686 sc->bge_cdata.bge_rx_std_map[i] = dmamap; 687 688 if (m == NULL) { 689 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 690 if (m_new == NULL) { 691 return(ENOBUFS); 692 } 693 694 MCLGET(m_new, M_DONTWAIT); 695 if (!(m_new->m_flags & M_EXT)) { 696 m_freem(m_new); 697 return(ENOBUFS); 698 } 699 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 700 m_adj(m_new, ETHER_ALIGN); 701 702 if (bus_dmamap_load_mbuf(sc->bge_dmatag, dmamap, m_new, 703 BUS_DMA_READ|BUS_DMA_NOWAIT)) 704 return(ENOBUFS); 705 } else { 706 m_new = m; 707 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 708 m_new->m_data = m_new->m_ext.ext_buf; 709 m_adj(m_new, ETHER_ALIGN); 710 } 711 712 sc->bge_cdata.bge_rx_std_chain[i] = m_new; 713 r = &sc->bge_rdata->bge_rx_std_ring[i]; 714 bge_set_hostaddr(&r->bge_addr, 715 dmamap->dm_segs[0].ds_addr); 716 r->bge_flags = BGE_RXBDFLAG_END; 717 r->bge_len = m_new->m_len; 718 r->bge_idx = i; 719 720 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 721 offsetof(struct bge_ring_data, bge_rx_std_ring) + 722 i * sizeof (struct bge_rx_bd), 723 sizeof (struct bge_rx_bd), 724 BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); 725 726 return(0); 727 } 728 729 /* 730 * Initialize a jumbo receive ring descriptor. This allocates 731 * a jumbo buffer from the pool managed internally by the driver. 732 */ 733 int 734 bge_newbuf_jumbo(sc, i, m) 735 struct bge_softc *sc; 736 int i; 737 struct mbuf *m; 738 { 739 struct mbuf *m_new = NULL; 740 struct bge_rx_bd *r; 741 742 if (m == NULL) { 743 caddr_t *buf = NULL; 744 745 /* Allocate the mbuf. */ 746 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 747 if (m_new == NULL) { 748 return(ENOBUFS); 749 } 750 751 /* Allocate the jumbo buffer */ 752 buf = bge_jalloc(sc); 753 if (buf == NULL) { 754 m_freem(m_new); 755 printf("%s: jumbo allocation failed " 756 "-- packet dropped!\n", sc->bge_dev.dv_xname); 757 return(ENOBUFS); 758 } 759 760 /* Attach the buffer to the mbuf. */ 761 m_new->m_len = m_new->m_pkthdr.len = BGE_JUMBO_FRAMELEN; 762 MEXTADD(m_new, buf, BGE_JUMBO_FRAMELEN, M_DEVBUF, 763 bge_jfree, sc); 764 } else { 765 m_new = m; 766 m_new->m_data = m_new->m_ext.ext_buf; 767 m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN; 768 } 769 770 m_adj(m_new, ETHER_ALIGN); 771 /* Set up the descriptor. */ 772 r = &sc->bge_rdata->bge_rx_jumbo_ring[i]; 773 sc->bge_cdata.bge_rx_jumbo_chain[i] = m_new; 774 bge_set_hostaddr(&r->bge_addr, BGE_JUMBO_DMA_ADDR(sc, m_new)); 775 r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING; 776 r->bge_len = m_new->m_len; 777 r->bge_idx = i; 778 779 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 780 offsetof(struct bge_ring_data, bge_rx_jumbo_ring) + 781 i * sizeof (struct bge_rx_bd), 782 sizeof (struct bge_rx_bd), 783 BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); 784 785 return(0); 786 } 787 788 /* 789 * The standard receive ring has 512 entries in it. At 2K per mbuf cluster, 790 * that's 1MB or memory, which is a lot. For now, we fill only the first 791 * 256 ring entries and hope that our CPU is fast enough to keep up with 792 * the NIC. 793 */ 794 int 795 bge_init_rx_ring_std(sc) 796 struct bge_softc *sc; 797 { 798 int i; 799 800 if (sc->bge_flags & BGE_RXRING_VALID) 801 return 0; 802 803 for (i = 0; i < BGE_SSLOTS; i++) { 804 if (bge_newbuf_std(sc, i, NULL, 0) == ENOBUFS) 805 return(ENOBUFS); 806 } 807 808 sc->bge_std = i - 1; 809 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); 810 811 sc->bge_flags |= BGE_RXRING_VALID; 812 813 return(0); 814 } 815 816 void 817 bge_free_rx_ring_std(sc) 818 struct bge_softc *sc; 819 { 820 int i; 821 822 if (!(sc->bge_flags & BGE_RXRING_VALID)) 823 return; 824 825 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 826 if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) { 827 m_freem(sc->bge_cdata.bge_rx_std_chain[i]); 828 sc->bge_cdata.bge_rx_std_chain[i] = NULL; 829 bus_dmamap_destroy(sc->bge_dmatag, 830 sc->bge_cdata.bge_rx_std_map[i]); 831 } 832 memset((char *)&sc->bge_rdata->bge_rx_std_ring[i], 0, 833 sizeof(struct bge_rx_bd)); 834 } 835 836 sc->bge_flags &= ~BGE_RXRING_VALID; 837 } 838 839 int 840 bge_init_rx_ring_jumbo(sc) 841 struct bge_softc *sc; 842 { 843 int i; 844 struct bge_rcb *rcb; 845 struct bge_rcb_opaque *rcbo; 846 847 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 848 if (bge_newbuf_jumbo(sc, i, NULL) == ENOBUFS) 849 return(ENOBUFS); 850 }; 851 852 sc->bge_jumbo = i - 1; 853 854 rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb; 855 rcbo = (struct bge_rcb_opaque *)rcb; 856 rcb->bge_flags = 0; 857 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcbo->bge_reg2); 858 859 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); 860 861 return(0); 862 } 863 864 void 865 bge_free_rx_ring_jumbo(sc) 866 struct bge_softc *sc; 867 { 868 int i; 869 870 if (!(sc->bge_flags & BGE_JUMBO_RXRING_VALID)) 871 return; 872 873 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 874 if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) { 875 m_freem(sc->bge_cdata.bge_rx_jumbo_chain[i]); 876 sc->bge_cdata.bge_rx_jumbo_chain[i] = NULL; 877 } 878 memset((char *)&sc->bge_rdata->bge_rx_jumbo_ring[i], 0, 879 sizeof(struct bge_rx_bd)); 880 } 881 882 sc->bge_flags &= ~BGE_JUMBO_RXRING_VALID; 883 } 884 885 void 886 bge_free_tx_ring(sc) 887 struct bge_softc *sc; 888 { 889 int i, freed; 890 struct txdmamap_pool_entry *dma; 891 892 if (!(sc->bge_flags & BGE_TXRING_VALID)) 893 return; 894 895 freed = 0; 896 897 for (i = 0; i < BGE_TX_RING_CNT; i++) { 898 if (sc->bge_cdata.bge_tx_chain[i] != NULL) { 899 freed++; 900 m_freem(sc->bge_cdata.bge_tx_chain[i]); 901 sc->bge_cdata.bge_tx_chain[i] = NULL; 902 SLIST_INSERT_HEAD(&sc->txdma_list, sc->txdma[i], 903 link); 904 sc->txdma[i] = 0; 905 } 906 memset((char *)&sc->bge_rdata->bge_tx_ring[i], 0, 907 sizeof(struct bge_tx_bd)); 908 } 909 910 while ((dma = SLIST_FIRST(&sc->txdma_list))) { 911 SLIST_REMOVE_HEAD(&sc->txdma_list, link); 912 bus_dmamap_destroy(sc->bge_dmatag, dma->dmamap); 913 free(dma, M_DEVBUF); 914 } 915 916 sc->bge_flags &= ~BGE_TXRING_VALID; 917 } 918 919 int 920 bge_init_tx_ring(sc) 921 struct bge_softc *sc; 922 { 923 int i; 924 bus_dmamap_t dmamap; 925 struct txdmamap_pool_entry *dma; 926 927 if (sc->bge_flags & BGE_TXRING_VALID) 928 return 0; 929 930 sc->bge_txcnt = 0; 931 sc->bge_tx_saved_considx = 0; 932 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, 0); 933 CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); 934 935 SLIST_INIT(&sc->txdma_list); 936 for (i = 0; i < BGE_RSLOTS; i++) { 937 if (bus_dmamap_create(sc->bge_dmatag, ETHER_MAX_LEN_JUMBO, 938 BGE_NTXSEG, ETHER_MAX_LEN_JUMBO, 0, BUS_DMA_NOWAIT, 939 &dmamap)) 940 return(ENOBUFS); 941 if (dmamap == NULL) 942 panic("dmamap NULL in bge_init_tx_ring"); 943 dma = malloc(sizeof(*dma), M_DEVBUF, M_NOWAIT); 944 if (dma == NULL) { 945 printf("%s: can't alloc txdmamap_pool_entry\n", 946 sc->bge_dev.dv_xname); 947 bus_dmamap_destroy(sc->bge_dmatag, dmamap); 948 return (ENOMEM); 949 } 950 dma->dmamap = dmamap; 951 SLIST_INSERT_HEAD(&sc->txdma_list, dma, link); 952 } 953 954 sc->bge_flags |= BGE_TXRING_VALID; 955 956 return(0); 957 } 958 959 void 960 bge_setmulti(sc) 961 struct bge_softc *sc; 962 { 963 struct ethercom *ac = &sc->ethercom; 964 struct ifnet *ifp = &ac->ec_if; 965 struct ether_multi *enm; 966 struct ether_multistep step; 967 u_int32_t hashes[4] = { 0, 0, 0, 0 }; 968 u_int32_t h; 969 int i; 970 971 if (ifp->if_flags & IFF_PROMISC) 972 goto allmulti; 973 974 /* Now program new ones. */ 975 ETHER_FIRST_MULTI(step, ac, enm); 976 while (enm != NULL) { 977 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 978 /* 979 * We must listen to a range of multicast addresses. 980 * For now, just accept all multicasts, rather than 981 * trying to set only those filter bits needed to match 982 * the range. (At this time, the only use of address 983 * ranges is for IP multicast routing, for which the 984 * range is big enough to require all bits set.) 985 */ 986 goto allmulti; 987 } 988 989 h = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN); 990 991 /* Just want the 7 least-significant bits. */ 992 h &= 0x7f; 993 994 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F); 995 ETHER_NEXT_MULTI(step, enm); 996 } 997 998 ifp->if_flags &= ~IFF_ALLMULTI; 999 goto setit; 1000 1001 allmulti: 1002 ifp->if_flags |= IFF_ALLMULTI; 1003 hashes[0] = hashes[1] = hashes[2] = hashes[3] = 0xffffffff; 1004 1005 setit: 1006 for (i = 0; i < 4; i++) 1007 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]); 1008 } 1009 1010 int bge_swapbits[] = { 1011 0, 1012 BGE_MODECTL_BYTESWAP_DATA, 1013 BGE_MODECTL_WORDSWAP_DATA, 1014 BGE_MODECTL_BYTESWAP_NONFRAME, 1015 BGE_MODECTL_WORDSWAP_NONFRAME, 1016 1017 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA, 1018 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME, 1019 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_NONFRAME, 1020 1021 BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME, 1022 BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_WORDSWAP_NONFRAME, 1023 1024 BGE_MODECTL_BYTESWAP_NONFRAME|BGE_MODECTL_WORDSWAP_NONFRAME, 1025 1026 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| 1027 BGE_MODECTL_BYTESWAP_NONFRAME, 1028 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| 1029 BGE_MODECTL_WORDSWAP_NONFRAME, 1030 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME| 1031 BGE_MODECTL_WORDSWAP_NONFRAME, 1032 BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME| 1033 BGE_MODECTL_WORDSWAP_NONFRAME, 1034 1035 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| 1036 BGE_MODECTL_BYTESWAP_NONFRAME|BGE_MODECTL_WORDSWAP_NONFRAME, 1037 }; 1038 1039 int bge_swapindex = 0; 1040 1041 /* 1042 * Do endian, PCI and DMA initialization. Also check the on-board ROM 1043 * self-test results. 1044 */ 1045 int 1046 bge_chipinit(sc) 1047 struct bge_softc *sc; 1048 { 1049 u_int32_t cachesize; 1050 int i; 1051 struct pci_attach_args *pa = &(sc->bge_pa); 1052 1053 1054 /* Set endianness before we access any non-PCI registers. */ 1055 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, 1056 BGE_INIT); 1057 1058 /* 1059 * Check the 'ROM failed' bit on the RX CPU to see if 1060 * self-tests passed. 1061 */ 1062 if (CSR_READ_4(sc, BGE_RXCPU_MODE) & BGE_RXCPUMODE_ROMFAIL) { 1063 printf("%s: RX CPU self-diagnostics failed!\n", 1064 sc->bge_dev.dv_xname); 1065 return(ENODEV); 1066 } 1067 1068 /* Clear the MAC control register */ 1069 CSR_WRITE_4(sc, BGE_MAC_MODE, 0); 1070 1071 /* 1072 * Clear the MAC statistics block in the NIC's 1073 * internal memory. 1074 */ 1075 for (i = BGE_STATS_BLOCK; 1076 i < BGE_STATS_BLOCK_END + 1; i += sizeof(u_int32_t)) 1077 BGE_MEMWIN_WRITE(pa->pa_pc, pa->pa_tag, i, 0); 1078 1079 for (i = BGE_STATUS_BLOCK; 1080 i < BGE_STATUS_BLOCK_END + 1; i += sizeof(u_int32_t)) 1081 BGE_MEMWIN_WRITE(pa->pa_pc, pa->pa_tag, i, 0); 1082 1083 /* Set up the PCI DMA control register. */ 1084 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1085 BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD|0x0F); 1086 1087 /* 1088 * Set up general mode register. 1089 */ 1090 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS| 1091 BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS| 1092 BGE_MODECTL_NO_RX_CRC|BGE_MODECTL_TX_NO_PHDR_CSUM| 1093 BGE_MODECTL_RX_NO_PHDR_CSUM); 1094 1095 /* Get cache line size. */ 1096 cachesize = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ); 1097 1098 /* 1099 * Avoid violating PCI spec on certain chip revs. 1100 */ 1101 if (pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD) & 1102 PCIM_CMD_MWIEN) { 1103 switch(cachesize) { 1104 case 1: 1105 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1106 BGE_PCI_WRITE_BNDRY_16BYTES); 1107 break; 1108 case 2: 1109 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1110 BGE_PCI_WRITE_BNDRY_32BYTES); 1111 break; 1112 case 4: 1113 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1114 BGE_PCI_WRITE_BNDRY_64BYTES); 1115 break; 1116 case 8: 1117 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1118 BGE_PCI_WRITE_BNDRY_128BYTES); 1119 break; 1120 case 16: 1121 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1122 BGE_PCI_WRITE_BNDRY_256BYTES); 1123 break; 1124 case 32: 1125 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1126 BGE_PCI_WRITE_BNDRY_512BYTES); 1127 break; 1128 case 64: 1129 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1130 BGE_PCI_WRITE_BNDRY_1024BYTES); 1131 break; 1132 default: 1133 /* Disable PCI memory write and invalidate. */ 1134 #if 0 1135 if (bootverbose) 1136 printf("%s: cache line size %d not " 1137 "supported; disabling PCI MWI\n", 1138 sc->bge_dev.dv_xname, cachesize); 1139 #endif 1140 PCI_CLRBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD, 1141 PCIM_CMD_MWIEN); 1142 break; 1143 } 1144 } 1145 1146 #ifdef __brokenalpha__ 1147 /* 1148 * Must insure that we do not cross an 8K (bytes) boundary 1149 * for DMA reads. Our highest limit is 1K bytes. This is a 1150 * restriction on some ALPHA platforms with early revision 1151 * 21174 PCI chipsets, such as the AlphaPC 164lx 1152 */ 1153 PCI_SETBIT(sc, BGE_PCI_DMA_RW_CTL, BGE_PCI_READ_BNDRY_1024, 4); 1154 #endif 1155 1156 /* Set the timer prescaler (always 66Mhz) */ 1157 CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/); 1158 1159 return(0); 1160 } 1161 1162 int 1163 bge_blockinit(sc) 1164 struct bge_softc *sc; 1165 { 1166 struct bge_rcb *rcb; 1167 struct bge_rcb_opaque *rcbo; 1168 bus_size_t rcb_addr; 1169 int i; 1170 struct ifnet *ifp = &sc->ethercom.ec_if; 1171 bge_hostaddr taddr; 1172 1173 /* 1174 * Initialize the memory window pointer register so that 1175 * we can access the first 32K of internal NIC RAM. This will 1176 * allow us to set up the TX send ring RCBs and the RX return 1177 * ring RCBs, plus other things which live in NIC memory. 1178 */ 1179 1180 pci_conf_write(sc->bge_pa.pa_pc, sc->bge_pa.pa_tag, 1181 BGE_PCI_MEMWIN_BASEADDR, 0); 1182 1183 /* Configure mbuf memory pool */ 1184 if (sc->bge_extram) { 1185 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_EXT_SSRAM); 1186 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); 1187 } else { 1188 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, BGE_BUFFPOOL_1); 1189 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); 1190 } 1191 1192 /* Configure DMA resource pool */ 1193 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR, BGE_DMA_DESCRIPTORS); 1194 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000); 1195 1196 /* Configure mbuf pool watermarks */ 1197 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 24); 1198 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 24); 1199 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 48); 1200 1201 /* Configure DMA resource watermarks */ 1202 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5); 1203 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10); 1204 1205 /* Enable buffer manager */ 1206 CSR_WRITE_4(sc, BGE_BMAN_MODE, 1207 BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN); 1208 1209 /* Poll for buffer manager start indication */ 1210 for (i = 0; i < BGE_TIMEOUT; i++) { 1211 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE) 1212 break; 1213 DELAY(10); 1214 } 1215 1216 if (i == BGE_TIMEOUT) { 1217 printf("%s: buffer manager failed to start\n", 1218 sc->bge_dev.dv_xname); 1219 return(ENXIO); 1220 } 1221 1222 /* Enable flow-through queues */ 1223 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); 1224 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); 1225 1226 /* Wait until queue initialization is complete */ 1227 for (i = 0; i < BGE_TIMEOUT; i++) { 1228 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0) 1229 break; 1230 DELAY(10); 1231 } 1232 1233 if (i == BGE_TIMEOUT) { 1234 printf("%s: flow-through queue init failed\n", 1235 sc->bge_dev.dv_xname); 1236 return(ENXIO); 1237 } 1238 1239 /* Initialize the standard RX ring control block */ 1240 rcb = &sc->bge_rdata->bge_info.bge_std_rx_rcb; 1241 bge_set_hostaddr(&rcb->bge_hostaddr, 1242 BGE_RING_DMA_ADDR(sc, bge_rx_std_ring)); 1243 rcb->bge_max_len = BGE_MAX_FRAMELEN; 1244 if (sc->bge_extram) 1245 rcb->bge_nicaddr = BGE_EXT_STD_RX_RINGS; 1246 else 1247 rcb->bge_nicaddr = BGE_STD_RX_RINGS; 1248 rcb->bge_flags = 0; 1249 rcbo = (struct bge_rcb_opaque *)rcb; 1250 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcbo->bge_reg0); 1251 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcbo->bge_reg1); 1252 CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcbo->bge_reg2); 1253 CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcbo->bge_reg3); 1254 1255 /* 1256 * Initialize the jumbo RX ring control block 1257 * We set the 'ring disabled' bit in the flags 1258 * field until we're actually ready to start 1259 * using this ring (i.e. once we set the MTU 1260 * high enough to require it). 1261 */ 1262 rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb; 1263 bge_set_hostaddr(&rcb->bge_hostaddr, 1264 BGE_RING_DMA_ADDR(sc, bge_rx_jumbo_ring)); 1265 rcb->bge_max_len = BGE_MAX_FRAMELEN; 1266 if (sc->bge_extram) 1267 rcb->bge_nicaddr = BGE_EXT_JUMBO_RX_RINGS; 1268 else 1269 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS; 1270 rcb->bge_flags = BGE_RCB_FLAG_RING_DISABLED; 1271 1272 rcbo = (struct bge_rcb_opaque *)rcb; 1273 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI, rcbo->bge_reg0); 1274 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO, rcbo->bge_reg1); 1275 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcbo->bge_reg2); 1276 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcbo->bge_reg3); 1277 1278 /* Set up dummy disabled mini ring RCB */ 1279 rcb = &sc->bge_rdata->bge_info.bge_mini_rx_rcb; 1280 rcb->bge_flags = BGE_RCB_FLAG_RING_DISABLED; 1281 rcbo = (struct bge_rcb_opaque *)rcb; 1282 CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS, rcbo->bge_reg2); 1283 1284 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 1285 offsetof(struct bge_ring_data, bge_info), sizeof (struct bge_gib), 1286 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1287 1288 /* 1289 * Set the BD ring replentish thresholds. The recommended 1290 * values are 1/8th the number of descriptors allocated to 1291 * each ring. 1292 */ 1293 CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, BGE_STD_RX_RING_CNT/8); 1294 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH, BGE_JUMBO_RX_RING_CNT/8); 1295 1296 /* 1297 * Disable all unused send rings by setting the 'ring disabled' 1298 * bit in the flags field of all the TX send ring control blocks. 1299 * These are located in NIC memory. 1300 */ 1301 rcb_addr = BGE_MEMWIN_START + BGE_SEND_RING_RCB; 1302 for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) { 1303 RCB_WRITE_2(sc, rcb_addr, bge_flags, 1304 BGE_RCB_FLAG_RING_DISABLED); 1305 RCB_WRITE_2(sc, rcb_addr, bge_max_len, 0); 1306 RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0); 1307 rcb_addr += sizeof(struct bge_rcb); 1308 } 1309 1310 /* Configure TX RCB 0 (we use only the first ring) */ 1311 rcb_addr = BGE_MEMWIN_START + BGE_SEND_RING_RCB; 1312 bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_tx_ring)); 1313 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); 1314 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); 1315 RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 1316 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT)); 1317 RCB_WRITE_2(sc, rcb_addr, bge_max_len, BGE_TX_RING_CNT); 1318 RCB_WRITE_2(sc, rcb_addr, bge_flags, 0); 1319 1320 /* Disable all unused RX return rings */ 1321 rcb_addr = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; 1322 for (i = 0; i < BGE_RX_RINGS_MAX; i++) { 1323 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, 0); 1324 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, 0); 1325 RCB_WRITE_2(sc, rcb_addr, bge_flags, 1326 BGE_RCB_FLAG_RING_DISABLED); 1327 RCB_WRITE_2(sc, rcb_addr, bge_max_len, BGE_RETURN_RING_CNT); 1328 RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0); 1329 CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO + 1330 (i * (sizeof(u_int64_t))), 0); 1331 rcb_addr += sizeof(struct bge_rcb); 1332 } 1333 1334 /* Initialize RX ring indexes */ 1335 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, 0); 1336 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0); 1337 CSR_WRITE_4(sc, BGE_MBX_RX_MINI_PROD_LO, 0); 1338 1339 /* 1340 * Set up RX return ring 0 1341 * Note that the NIC address for RX return rings is 0x00000000. 1342 * The return rings live entirely within the host, so the 1343 * nicaddr field in the RCB isn't used. 1344 */ 1345 rcb_addr = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; 1346 bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_rx_return_ring)); 1347 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); 1348 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); 1349 RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0x00000000); 1350 RCB_WRITE_2(sc, rcb_addr, bge_max_len, BGE_RETURN_RING_CNT); 1351 RCB_WRITE_2(sc, rcb_addr, bge_flags, 0); 1352 1353 /* Set random backoff seed for TX */ 1354 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF, 1355 LLADDR(ifp->if_sadl)[0] + LLADDR(ifp->if_sadl)[1] + 1356 LLADDR(ifp->if_sadl)[2] + LLADDR(ifp->if_sadl)[3] + 1357 LLADDR(ifp->if_sadl)[4] + LLADDR(ifp->if_sadl)[5] + 1358 BGE_TX_BACKOFF_SEED_MASK); 1359 1360 /* Set inter-packet gap */ 1361 CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620); 1362 1363 /* 1364 * Specify which ring to use for packets that don't match 1365 * any RX rules. 1366 */ 1367 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08); 1368 1369 /* 1370 * Configure number of RX lists. One interrupt distribution 1371 * list, sixteen active lists, one bad frames class. 1372 */ 1373 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181); 1374 1375 /* Inialize RX list placement stats mask. */ 1376 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF); 1377 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1); 1378 1379 /* Disable host coalescing until we get it set up */ 1380 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000); 1381 1382 /* Poll to make sure it's shut down. */ 1383 for (i = 0; i < BGE_TIMEOUT; i++) { 1384 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE)) 1385 break; 1386 DELAY(10); 1387 } 1388 1389 if (i == BGE_TIMEOUT) { 1390 printf("%s: host coalescing engine failed to idle\n", 1391 sc->bge_dev.dv_xname); 1392 return(ENXIO); 1393 } 1394 1395 /* Set up host coalescing defaults */ 1396 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks); 1397 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks); 1398 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds); 1399 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds); 1400 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0); 1401 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0); 1402 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 0); 1403 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 0); 1404 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks); 1405 1406 /* Set up address of statistics block */ 1407 bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_info.bge_stats)); 1408 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK); 1409 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI, taddr.bge_addr_hi); 1410 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO, taddr.bge_addr_lo); 1411 1412 /* Set up address of status block */ 1413 bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_status_block)); 1414 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK); 1415 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI, taddr.bge_addr_hi); 1416 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO, taddr.bge_addr_lo); 1417 sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx = 0; 1418 sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx = 0; 1419 1420 /* Turn on host coalescing state machine */ 1421 CSR_WRITE_4(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); 1422 1423 /* Turn on RX BD completion state machine and enable attentions */ 1424 CSR_WRITE_4(sc, BGE_RBDC_MODE, 1425 BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN); 1426 1427 /* Turn on RX list placement state machine */ 1428 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); 1429 1430 /* Turn on RX list selector state machine. */ 1431 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); 1432 1433 /* Turn on DMA, clear stats */ 1434 CSR_WRITE_4(sc, BGE_MAC_MODE, BGE_MACMODE_TXDMA_ENB| 1435 BGE_MACMODE_RXDMA_ENB|BGE_MACMODE_RX_STATS_CLEAR| 1436 BGE_MACMODE_TX_STATS_CLEAR|BGE_MACMODE_RX_STATS_ENB| 1437 BGE_MACMODE_TX_STATS_ENB|BGE_MACMODE_FRMHDR_DMA_ENB| 1438 (sc->bge_tbi ? BGE_PORTMODE_TBI : BGE_PORTMODE_MII)); 1439 1440 /* Set misc. local control, enable interrupts on attentions */ 1441 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_INTR_ONATTN); 1442 1443 #ifdef notdef 1444 /* Assert GPIO pins for PHY reset */ 1445 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0| 1446 BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2); 1447 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0| 1448 BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2); 1449 #endif 1450 1451 /* Turn on DMA completion state machine */ 1452 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); 1453 1454 /* Turn on write DMA state machine */ 1455 CSR_WRITE_4(sc, BGE_WDMA_MODE, 1456 BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS); 1457 1458 /* Turn on read DMA state machine */ 1459 CSR_WRITE_4(sc, BGE_RDMA_MODE, 1460 BGE_RDMAMODE_ENABLE|BGE_RDMAMODE_ALL_ATTNS); 1461 1462 /* Turn on RX data completion state machine */ 1463 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); 1464 1465 /* Turn on RX BD initiator state machine */ 1466 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); 1467 1468 /* Turn on RX data and RX BD initiator state machine */ 1469 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE); 1470 1471 /* Turn on Mbuf cluster free state machine */ 1472 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); 1473 1474 /* Turn on send BD completion state machine */ 1475 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); 1476 1477 /* Turn on send data completion state machine */ 1478 CSR_WRITE_4(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); 1479 1480 /* Turn on send data initiator state machine */ 1481 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); 1482 1483 /* Turn on send BD initiator state machine */ 1484 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); 1485 1486 /* Turn on send BD selector state machine */ 1487 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); 1488 1489 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF); 1490 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL, 1491 BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER); 1492 1493 /* init LED register */ 1494 CSR_WRITE_4(sc, BGE_MAC_LED_CTL, 0x00000000); 1495 1496 /* ack/clear link change events */ 1497 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| 1498 BGE_MACSTAT_CFG_CHANGED); 1499 CSR_WRITE_4(sc, BGE_MI_STS, 0); 1500 1501 /* Enable PHY auto polling (for MII/GMII only) */ 1502 if (sc->bge_tbi) { 1503 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK); 1504 } else { 1505 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16); 1506 if (sc->bge_quirks & BGE_QUIRK_LINK_STATE_BROKEN) 1507 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, 1508 BGE_EVTENB_MI_INTERRUPT); 1509 } 1510 1511 /* Enable link state change attentions. */ 1512 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED); 1513 1514 return(0); 1515 } 1516 1517 static const struct bge_revision { 1518 uint32_t br_asicrev; 1519 uint32_t br_quirks; 1520 const char *br_name; 1521 } bge_revisions[] = { 1522 { BGE_ASICREV_BCM5700_A0, 1523 BGE_QUIRK_LINK_STATE_BROKEN, 1524 "BCM5700 A0" }, 1525 1526 { BGE_ASICREV_BCM5700_A1, 1527 BGE_QUIRK_LINK_STATE_BROKEN, 1528 "BCM5700 A1" }, 1529 1530 { BGE_ASICREV_BCM5700_B0, 1531 BGE_QUIRK_LINK_STATE_BROKEN|BGE_QUIRK_CSUM_BROKEN, 1532 "BCM5700 B0" }, 1533 1534 { BGE_ASICREV_BCM5700_B1, 1535 BGE_QUIRK_LINK_STATE_BROKEN, 1536 "BCM5700 B1" }, 1537 1538 { BGE_ASICREV_BCM5700_B2, 1539 BGE_QUIRK_LINK_STATE_BROKEN, 1540 "BCM5700 B2" }, 1541 1542 /* This is treated like a BCM5700 Bx */ 1543 { BGE_ASICREV_BCM5700_ALTIMA, 1544 BGE_QUIRK_LINK_STATE_BROKEN, 1545 "BCM5700 Altima" }, 1546 1547 { BGE_ASICREV_BCM5700_C0, 1548 0, 1549 "BCM5700 C0" }, 1550 1551 { BGE_ASICREV_BCM5701_A0, 1552 0, 1553 "BCM5701 A0" }, 1554 1555 { BGE_ASICREV_BCM5701_B0, 1556 0, 1557 "BCM5701 B0" }, 1558 1559 { BGE_ASICREV_BCM5701_B2, 1560 0, 1561 "BCM5701 B2" }, 1562 1563 { BGE_ASICREV_BCM5701_B5, 1564 0, 1565 "BCM5701 B5" }, 1566 1567 { BGE_ASICREV_BCM5703_A0, 1568 0, 1569 "BCM5703 A0" }, 1570 1571 { BGE_ASICREV_BCM5703_A1, 1572 0, 1573 "BCM5703 A1" }, 1574 1575 { BGE_ASICREV_BCM5703_A2, 1576 0, 1577 "BCM5703 A2" }, 1578 1579 { 0, 0, NULL } 1580 }; 1581 1582 static const struct bge_revision * 1583 bge_lookup_rev(uint32_t asicrev) 1584 { 1585 const struct bge_revision *br; 1586 1587 for (br = bge_revisions; br->br_name != NULL; br++) { 1588 if (br->br_asicrev == asicrev) 1589 return (br); 1590 } 1591 1592 return (NULL); 1593 } 1594 1595 static const struct bge_product { 1596 pci_vendor_id_t bp_vendor; 1597 pci_product_id_t bp_product; 1598 const char *bp_name; 1599 } bge_products[] = { 1600 /* 1601 * The BCM5700 documentation seems to indicate that the hardware 1602 * still has the Alteon vendor ID burned into it, though it 1603 * should always be overridden by the value in the EEPROM. We'll 1604 * check for it anyway. 1605 */ 1606 { PCI_VENDOR_ALTEON, 1607 PCI_PRODUCT_ALTEON_BCM5700, 1608 "Broadcom BCM5700 Gigabit Ethernet" }, 1609 { PCI_VENDOR_ALTEON, 1610 PCI_PRODUCT_ALTEON_BCM5701, 1611 "Broadcom BCM5701 Gigabit Ethernet" }, 1612 1613 { PCI_VENDOR_ALTIMA, 1614 PCI_PRODUCT_ALTIMA_AC1000, 1615 "Altima AC1000 Gigabit Ethernet" }, 1616 { PCI_VENDOR_ALTIMA, 1617 PCI_PRODUCT_ALTIMA_AC1001, 1618 "Altima AC1001 Gigabit Ethernet" }, 1619 { PCI_VENDOR_ALTIMA, 1620 PCI_PRODUCT_ALTIMA_AC9100, 1621 "Altima AC9100 Gigabit Ethernet" }, 1622 1623 { PCI_VENDOR_BROADCOM, 1624 PCI_PRODUCT_BROADCOM_BCM5700, 1625 "Broadcom BCM5700 Gigabit Ethernet" }, 1626 { PCI_VENDOR_BROADCOM, 1627 PCI_PRODUCT_BROADCOM_BCM5701, 1628 "Broadcom BCM5700 Gigabit Ethernet" }, 1629 1630 { PCI_VENDOR_SCHNEIDERKOCH, 1631 PCI_PRODUCT_SCHNEIDERKOCH_SK_9DX1, 1632 "SysKonnect SK-9Dx1 Gigabit Ethernet" }, 1633 1634 { PCI_VENDOR_3COM, 1635 PCI_PRODUCT_3COM_3C996, 1636 "3Com 3c996 Gigabit Ethernet" }, 1637 1638 { 0, 1639 0, 1640 NULL }, 1641 }; 1642 1643 static const struct bge_product * 1644 bge_lookup(const struct pci_attach_args *pa) 1645 { 1646 const struct bge_product *bp; 1647 1648 for (bp = bge_products; bp->bp_name != NULL; bp++) { 1649 if (PCI_VENDOR(pa->pa_id) == bp->bp_vendor && 1650 PCI_PRODUCT(pa->pa_id) == bp->bp_product) 1651 return (bp); 1652 } 1653 1654 return (NULL); 1655 } 1656 1657 /* 1658 * Probe for a Broadcom chip. Check the PCI vendor and device IDs 1659 * against our list and return its name if we find a match. Note 1660 * that since the Broadcom controller contains VPD support, we 1661 * can get the device name string from the controller itself instead 1662 * of the compiled-in string. This is a little slow, but it guarantees 1663 * we'll always announce the right product name. 1664 */ 1665 int 1666 bge_probe(parent, match, aux) 1667 struct device *parent; 1668 struct cfdata *match; 1669 void *aux; 1670 { 1671 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 1672 1673 if (bge_lookup(pa) != NULL) 1674 return (1); 1675 1676 return (0); 1677 } 1678 1679 void 1680 bge_attach(parent, self, aux) 1681 struct device *parent, *self; 1682 void *aux; 1683 { 1684 struct bge_softc *sc = (struct bge_softc *)self; 1685 struct pci_attach_args *pa = aux; 1686 const struct bge_product *bp; 1687 const struct bge_revision *br; 1688 pci_chipset_tag_t pc = pa->pa_pc; 1689 pci_intr_handle_t ih; 1690 const char *intrstr = NULL; 1691 bus_dma_segment_t seg; 1692 int rseg; 1693 u_int32_t hwcfg = 0; 1694 u_int32_t command; 1695 struct ifnet *ifp; 1696 int unit; 1697 caddr_t kva; 1698 u_char eaddr[ETHER_ADDR_LEN]; 1699 pcireg_t memtype; 1700 bus_addr_t memaddr; 1701 bus_size_t memsize; 1702 1703 bp = bge_lookup(pa); 1704 KASSERT(bp != NULL); 1705 1706 sc->bge_pa = *pa; 1707 1708 printf(": %s\n", bp->bp_name); 1709 1710 /* 1711 * Map control/status registers. 1712 */ 1713 DPRINTFN(5, ("Map control/status regs\n")); 1714 command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1715 command |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE; 1716 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 1717 command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1718 1719 if (!(command & PCI_COMMAND_MEM_ENABLE)) { 1720 printf("%s: failed to enable memory mapping!\n", 1721 sc->bge_dev.dv_xname); 1722 return; 1723 } 1724 1725 DPRINTFN(5, ("pci_mem_find\n")); 1726 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, BGE_PCI_BAR0); 1727 switch (memtype) { 1728 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 1729 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 1730 if (pci_mapreg_map(pa, BGE_PCI_BAR0, 1731 memtype, 0, &sc->bge_btag, &sc->bge_bhandle, 1732 &memaddr, &memsize) == 0) 1733 break; 1734 default: 1735 printf("%s: can't find mem space\n", 1736 sc->bge_dev.dv_xname); 1737 return; 1738 } 1739 1740 DPRINTFN(5, ("pci_intr_map\n")); 1741 if (pci_intr_map(pa, &ih)) { 1742 printf("%s: couldn't map interrupt\n", 1743 sc->bge_dev.dv_xname); 1744 return; 1745 } 1746 1747 DPRINTFN(5, ("pci_intr_string\n")); 1748 intrstr = pci_intr_string(pc, ih); 1749 1750 DPRINTFN(5, ("pci_intr_establish\n")); 1751 sc->bge_intrhand = pci_intr_establish(pc, ih, IPL_NET, bge_intr, sc); 1752 1753 if (sc->bge_intrhand == NULL) { 1754 printf("%s: couldn't establish interrupt", 1755 sc->bge_dev.dv_xname); 1756 if (intrstr != NULL) 1757 printf(" at %s", intrstr); 1758 printf("\n"); 1759 return; 1760 } 1761 printf("%s: interrupting at %s\n", sc->bge_dev.dv_xname, intrstr); 1762 1763 /* Try to reset the chip. */ 1764 DPRINTFN(5, ("bge_reset\n")); 1765 bge_reset(sc); 1766 1767 if (bge_chipinit(sc)) { 1768 printf("%s: chip initializatino failed\n", 1769 sc->bge_dev.dv_xname); 1770 bge_release_resources(sc); 1771 return; 1772 } 1773 1774 /* 1775 * Get station address from the EEPROM. 1776 */ 1777 if (bge_read_eeprom(sc, (caddr_t)eaddr, 1778 BGE_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { 1779 printf("bge%d: failed to read station address\n", unit); 1780 bge_release_resources(sc); 1781 return; 1782 } 1783 1784 /* 1785 * Save ASIC rev. Look up any quirks associated with this 1786 * ASIC. 1787 */ 1788 sc->bge_asicrev = 1789 pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL) & 1790 BGE_PCIMISCCTL_ASICREV; 1791 br = bge_lookup_rev(sc->bge_asicrev); 1792 1793 printf("%s: ", sc->bge_dev.dv_xname); 1794 if (br == NULL) { 1795 printf("unknown ASIC 0x%08x", sc->bge_asicrev); 1796 sc->bge_quirks = 0; 1797 } else { 1798 printf("ASIC %s", br->br_name); 1799 sc->bge_quirks = br->br_quirks; 1800 } 1801 printf(", Ethernet address %s\n", ether_sprintf(eaddr)); 1802 1803 /* Allocate the general information block and ring buffers. */ 1804 sc->bge_dmatag = pa->pa_dmat; 1805 DPRINTFN(5, ("bus_dmamem_alloc\n")); 1806 if (bus_dmamem_alloc(sc->bge_dmatag, sizeof(struct bge_ring_data), 1807 PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { 1808 printf("%s: can't alloc rx buffers\n", sc->bge_dev.dv_xname); 1809 return; 1810 } 1811 DPRINTFN(5, ("bus_dmamem_map\n")); 1812 if (bus_dmamem_map(sc->bge_dmatag, &seg, rseg, 1813 sizeof(struct bge_ring_data), &kva, 1814 BUS_DMA_NOWAIT)) { 1815 printf("%s: can't map dma buffers (%d bytes)\n", 1816 sc->bge_dev.dv_xname, (int)sizeof(struct bge_ring_data)); 1817 bus_dmamem_free(sc->bge_dmatag, &seg, rseg); 1818 return; 1819 } 1820 DPRINTFN(5, ("bus_dmamem_create\n")); 1821 if (bus_dmamap_create(sc->bge_dmatag, sizeof(struct bge_ring_data), 1, 1822 sizeof(struct bge_ring_data), 0, 1823 BUS_DMA_NOWAIT, &sc->bge_ring_map)) { 1824 printf("%s: can't create dma map\n", sc->bge_dev.dv_xname); 1825 bus_dmamem_unmap(sc->bge_dmatag, kva, 1826 sizeof(struct bge_ring_data)); 1827 bus_dmamem_free(sc->bge_dmatag, &seg, rseg); 1828 return; 1829 } 1830 DPRINTFN(5, ("bus_dmamem_load\n")); 1831 if (bus_dmamap_load(sc->bge_dmatag, sc->bge_ring_map, kva, 1832 sizeof(struct bge_ring_data), NULL, 1833 BUS_DMA_NOWAIT)) { 1834 bus_dmamap_destroy(sc->bge_dmatag, sc->bge_ring_map); 1835 bus_dmamem_unmap(sc->bge_dmatag, kva, 1836 sizeof(struct bge_ring_data)); 1837 bus_dmamem_free(sc->bge_dmatag, &seg, rseg); 1838 return; 1839 } 1840 1841 DPRINTFN(5, ("bzero\n")); 1842 sc->bge_rdata = (struct bge_ring_data *)kva; 1843 1844 memset(sc->bge_rdata, sizeof(struct bge_ring_data), 0); 1845 1846 /* Try to allocate memory for jumbo buffers. */ 1847 if (bge_alloc_jumbo_mem(sc)) { 1848 printf("%s: jumbo buffer allocation failed\n", 1849 sc->bge_dev.dv_xname); 1850 } else 1851 sc->ethercom.ec_capabilities |= ETHERCAP_JUMBO_MTU; 1852 1853 /* Set default tuneable values. */ 1854 sc->bge_stat_ticks = BGE_TICKS_PER_SEC; 1855 sc->bge_rx_coal_ticks = 150; 1856 sc->bge_tx_coal_ticks = 150; 1857 sc->bge_rx_max_coal_bds = 64; 1858 sc->bge_tx_max_coal_bds = 128; 1859 1860 /* Set up ifnet structure */ 1861 ifp = &sc->ethercom.ec_if; 1862 ifp->if_softc = sc; 1863 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1864 ifp->if_ioctl = bge_ioctl; 1865 ifp->if_start = bge_start; 1866 ifp->if_init = bge_init; 1867 ifp->if_watchdog = bge_watchdog; 1868 IFQ_SET_MAXLEN(&ifp->if_snd, BGE_TX_RING_CNT - 1); 1869 IFQ_SET_READY(&ifp->if_snd); 1870 DPRINTFN(5, ("bcopy\n")); 1871 strcpy(ifp->if_xname, sc->bge_dev.dv_xname); 1872 1873 if ((sc->bge_quirks & BGE_QUIRK_CSUM_BROKEN) == 0) 1874 sc->ethercom.ec_if.if_capabilities |= 1875 IFCAP_CSUM_IPv4 | IFCAP_CSUM_TCPv4 | IFCAP_CSUM_UDPv4; 1876 sc->ethercom.ec_capabilities |= 1877 ETHERCAP_VLAN_HWTAGGING | ETHERCAP_VLAN_MTU; 1878 1879 /* 1880 * Do MII setup. 1881 */ 1882 DPRINTFN(5, ("mii setup\n")); 1883 sc->bge_mii.mii_ifp = ifp; 1884 sc->bge_mii.mii_readreg = bge_miibus_readreg; 1885 sc->bge_mii.mii_writereg = bge_miibus_writereg; 1886 sc->bge_mii.mii_statchg = bge_miibus_statchg; 1887 1888 /* 1889 * Figure out what sort of media we have by checking the 1890 * hardware config word in the EEPROM. Note: on some BCM5700 1891 * cards, this value appears to be unset. If that's the 1892 * case, we have to rely on identifying the NIC by its PCI 1893 * subsystem ID, as we do below for the SysKonnect SK-9D41. 1894 */ 1895 bge_read_eeprom(sc, (caddr_t)&hwcfg, 1896 BGE_EE_HWCFG_OFFSET, sizeof(hwcfg)); 1897 if ((be32toh(hwcfg) & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) 1898 sc->bge_tbi = 1; 1899 1900 /* The SysKonnect SK-9D41 is a 1000baseSX card. */ 1901 if ((pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_SUBSYS) >> 16) == 1902 SK_SUBSYSID_9D41) 1903 sc->bge_tbi = 1; 1904 1905 if (sc->bge_tbi) { 1906 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK, bge_ifmedia_upd, 1907 bge_ifmedia_sts); 1908 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL); 1909 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX|IFM_FDX, 1910 0, NULL); 1911 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); 1912 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO); 1913 } else { 1914 /* 1915 * Do transceiver setup. 1916 */ 1917 ifmedia_init(&sc->bge_mii.mii_media, 0, bge_ifmedia_upd, 1918 bge_ifmedia_sts); 1919 mii_attach(&sc->bge_dev, &sc->bge_mii, 0xffffffff, 1920 MII_PHY_ANY, MII_OFFSET_ANY, 0); 1921 1922 if (LIST_FIRST(&sc->bge_mii.mii_phys) == NULL) { 1923 printf("%s: no PHY found!\n", sc->bge_dev.dv_xname); 1924 ifmedia_add(&sc->bge_mii.mii_media, 1925 IFM_ETHER|IFM_MANUAL, 0, NULL); 1926 ifmedia_set(&sc->bge_mii.mii_media, 1927 IFM_ETHER|IFM_MANUAL); 1928 } else 1929 ifmedia_set(&sc->bge_mii.mii_media, 1930 IFM_ETHER|IFM_AUTO); 1931 } 1932 1933 /* 1934 * Call MI attach routine. 1935 */ 1936 DPRINTFN(5, ("if_attach\n")); 1937 if_attach(ifp); 1938 DPRINTFN(5, ("ether_ifattach\n")); 1939 ether_ifattach(ifp, eaddr); 1940 DPRINTFN(5, ("callout_init\n")); 1941 callout_init(&sc->bge_timeout); 1942 } 1943 1944 void 1945 bge_release_resources(sc) 1946 struct bge_softc *sc; 1947 { 1948 if (sc->bge_vpd_prodname != NULL) 1949 free(sc->bge_vpd_prodname, M_DEVBUF); 1950 1951 if (sc->bge_vpd_readonly != NULL) 1952 free(sc->bge_vpd_readonly, M_DEVBUF); 1953 } 1954 1955 void 1956 bge_reset(sc) 1957 struct bge_softc *sc; 1958 { 1959 struct pci_attach_args *pa = &sc->bge_pa; 1960 u_int32_t cachesize, command, pcistate; 1961 int i, val = 0; 1962 1963 /* Save some important PCI state. */ 1964 cachesize = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ); 1965 command = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD); 1966 pcistate = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_PCISTATE); 1967 1968 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, 1969 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| 1970 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW); 1971 1972 /* Issue global reset */ 1973 bge_writereg_ind(sc, BGE_MISC_CFG, 1974 BGE_MISCCFG_RESET_CORE_CLOCKS|(65<<1)); 1975 1976 DELAY(1000); 1977 1978 /* Reset some of the PCI state that got zapped by reset */ 1979 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, 1980 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| 1981 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW); 1982 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD, command); 1983 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ, cachesize); 1984 bge_writereg_ind(sc, BGE_MISC_CFG, (65 << 1)); 1985 1986 /* Enable memory arbiter. */ 1987 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); 1988 1989 /* 1990 * Prevent PXE restart: write a magic number to the 1991 * general communications memory at 0xB50. 1992 */ 1993 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); 1994 1995 /* 1996 * Poll the value location we just wrote until 1997 * we see the 1's complement of the magic number. 1998 * This indicates that the firmware initialization 1999 * is complete. 2000 */ 2001 for (i = 0; i < 750; i++) { 2002 val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM); 2003 if (val == ~BGE_MAGIC_NUMBER) 2004 break; 2005 DELAY(1000); 2006 } 2007 2008 if (i == 750) { 2009 printf("%s: firmware handshake timed out, val = %x\n", 2010 sc->bge_dev.dv_xname, val); 2011 return; 2012 } 2013 2014 /* 2015 * XXX Wait for the value of the PCISTATE register to 2016 * return to its original pre-reset state. This is a 2017 * fairly good indicator of reset completion. If we don't 2018 * wait for the reset to fully complete, trying to read 2019 * from the device's non-PCI registers may yield garbage 2020 * results. 2021 */ 2022 for (i = 0; i < BGE_TIMEOUT; i++) { 2023 if (pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_PCISTATE) == 2024 pcistate) 2025 break; 2026 DELAY(10); 2027 } 2028 2029 /* Enable memory arbiter. */ 2030 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); 2031 2032 /* Fix up byte swapping */ 2033 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS); 2034 2035 CSR_WRITE_4(sc, BGE_MAC_MODE, 0); 2036 2037 DELAY(10000); 2038 } 2039 2040 /* 2041 * Frame reception handling. This is called if there's a frame 2042 * on the receive return list. 2043 * 2044 * Note: we have to be able to handle two possibilities here: 2045 * 1) the frame is from the jumbo recieve ring 2046 * 2) the frame is from the standard receive ring 2047 */ 2048 2049 void 2050 bge_rxeof(sc) 2051 struct bge_softc *sc; 2052 { 2053 struct ifnet *ifp; 2054 int stdcnt = 0, jumbocnt = 0; 2055 int have_tag = 0; 2056 u_int16_t vlan_tag = 0; 2057 bus_dmamap_t dmamap; 2058 bus_addr_t offset, toff; 2059 bus_size_t tlen; 2060 int tosync; 2061 2062 ifp = &sc->ethercom.ec_if; 2063 2064 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2065 offsetof(struct bge_ring_data, bge_status_block), 2066 sizeof (struct bge_status_block), 2067 BUS_DMASYNC_POSTREAD); 2068 2069 offset = offsetof(struct bge_ring_data, bge_rx_return_ring); 2070 tosync = sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx - 2071 sc->bge_rx_saved_considx; 2072 2073 toff = offset + (sc->bge_rx_saved_considx * sizeof (struct bge_rx_bd)); 2074 2075 if (tosync < 0) { 2076 tlen = (BGE_RETURN_RING_CNT - sc->bge_rx_saved_considx) * 2077 sizeof (struct bge_rx_bd); 2078 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2079 toff, tlen, BUS_DMASYNC_POSTREAD); 2080 tosync = -tosync; 2081 } 2082 2083 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2084 offset, tosync * sizeof (struct bge_rx_bd), 2085 BUS_DMASYNC_POSTREAD); 2086 2087 while(sc->bge_rx_saved_considx != 2088 sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx) { 2089 struct bge_rx_bd *cur_rx; 2090 u_int32_t rxidx; 2091 struct mbuf *m = NULL; 2092 2093 cur_rx = &sc->bge_rdata-> 2094 bge_rx_return_ring[sc->bge_rx_saved_considx]; 2095 2096 rxidx = cur_rx->bge_idx; 2097 BGE_INC(sc->bge_rx_saved_considx, BGE_RETURN_RING_CNT); 2098 2099 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) { 2100 have_tag = 1; 2101 vlan_tag = cur_rx->bge_vlan_tag; 2102 } 2103 2104 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) { 2105 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT); 2106 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx]; 2107 sc->bge_cdata.bge_rx_jumbo_chain[rxidx] = NULL; 2108 jumbocnt++; 2109 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { 2110 ifp->if_ierrors++; 2111 bge_newbuf_jumbo(sc, sc->bge_jumbo, m); 2112 continue; 2113 } 2114 if (bge_newbuf_jumbo(sc, sc->bge_jumbo, 2115 NULL)== ENOBUFS) { 2116 ifp->if_ierrors++; 2117 bge_newbuf_jumbo(sc, sc->bge_jumbo, m); 2118 continue; 2119 } 2120 } else { 2121 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT); 2122 m = sc->bge_cdata.bge_rx_std_chain[rxidx]; 2123 sc->bge_cdata.bge_rx_std_chain[rxidx] = NULL; 2124 stdcnt++; 2125 dmamap = sc->bge_cdata.bge_rx_std_map[rxidx]; 2126 sc->bge_cdata.bge_rx_std_map[rxidx] = 0; 2127 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { 2128 ifp->if_ierrors++; 2129 bge_newbuf_std(sc, sc->bge_std, m, dmamap); 2130 continue; 2131 } 2132 if (bge_newbuf_std(sc, sc->bge_std, 2133 NULL, dmamap) == ENOBUFS) { 2134 ifp->if_ierrors++; 2135 bge_newbuf_std(sc, sc->bge_std, m, dmamap); 2136 continue; 2137 } 2138 } 2139 2140 ifp->if_ipackets++; 2141 m->m_pkthdr.len = m->m_len = cur_rx->bge_len; 2142 m->m_pkthdr.rcvif = ifp; 2143 2144 #if NBPFILTER > 0 2145 /* 2146 * Handle BPF listeners. Let the BPF user see the packet. 2147 */ 2148 if (ifp->if_bpf) 2149 bpf_mtap(ifp->if_bpf, m); 2150 #endif 2151 2152 if ((sc->bge_quirks & BGE_QUIRK_CSUM_BROKEN) == 0) { 2153 m->m_pkthdr.csum_flags |= M_CSUM_IPv4; 2154 if ((cur_rx->bge_ip_csum ^ 0xffff) != 0) 2155 m->m_pkthdr.csum_flags |= M_CSUM_IPv4_BAD; 2156 #if 0 /* XXX appears to be broken */ 2157 if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM) { 2158 m->m_pkthdr.csum_data = 2159 cur_rx->bge_tcp_udp_csum; 2160 m->m_pkthdr.csum_flags |= 2161 (M_CSUM_TCPv4|M_CSUM_UDPv4|M_CSUM_DATA); 2162 } 2163 #endif 2164 } 2165 2166 /* 2167 * If we received a packet with a vlan tag, pass it 2168 * to vlan_input() instead of ether_input(). 2169 */ 2170 if (have_tag) { 2171 struct mbuf *n; 2172 2173 n = m_aux_add(m, AF_LINK, ETHERTYPE_VLAN); 2174 if (n != NULL) { 2175 *mtod(n, int *) = vlan_tag; 2176 n->m_len = sizeof(int); 2177 have_tag = vlan_tag = 0; 2178 } else { 2179 printf("%s: no mbuf for tag\n", ifp->if_xname); 2180 m_freem(m); 2181 have_tag = vlan_tag = 0; 2182 continue; 2183 } 2184 } 2185 (*ifp->if_input)(ifp, m); 2186 } 2187 2188 CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx); 2189 if (stdcnt) 2190 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); 2191 if (jumbocnt) 2192 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); 2193 } 2194 2195 void 2196 bge_txeof(sc) 2197 struct bge_softc *sc; 2198 { 2199 struct bge_tx_bd *cur_tx = NULL; 2200 struct ifnet *ifp; 2201 struct txdmamap_pool_entry *dma; 2202 bus_addr_t offset, toff; 2203 bus_size_t tlen; 2204 int tosync; 2205 struct mbuf *m; 2206 2207 ifp = &sc->ethercom.ec_if; 2208 2209 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2210 offsetof(struct bge_ring_data, bge_status_block), 2211 sizeof (struct bge_status_block), 2212 BUS_DMASYNC_POSTREAD); 2213 2214 offset = offsetof(struct bge_ring_data, bge_tx_ring); 2215 tosync = sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx - 2216 sc->bge_tx_saved_considx; 2217 2218 toff = offset + (sc->bge_tx_saved_considx * sizeof (struct bge_tx_bd)); 2219 2220 if (tosync < 0) { 2221 tlen = (BGE_TX_RING_CNT - sc->bge_tx_saved_considx) * 2222 sizeof (struct bge_tx_bd); 2223 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2224 toff, tlen, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2225 tosync = -tosync; 2226 } 2227 2228 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2229 offset, tosync * sizeof (struct bge_tx_bd), 2230 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 2231 2232 /* 2233 * Go through our tx ring and free mbufs for those 2234 * frames that have been sent. 2235 */ 2236 while (sc->bge_tx_saved_considx != 2237 sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx) { 2238 u_int32_t idx = 0; 2239 2240 idx = sc->bge_tx_saved_considx; 2241 cur_tx = &sc->bge_rdata->bge_tx_ring[idx]; 2242 if (cur_tx->bge_flags & BGE_TXBDFLAG_END) 2243 ifp->if_opackets++; 2244 m = sc->bge_cdata.bge_tx_chain[idx]; 2245 if (m != NULL) { 2246 sc->bge_cdata.bge_tx_chain[idx] = NULL; 2247 dma = sc->txdma[idx]; 2248 bus_dmamap_sync(sc->bge_dmatag, dma->dmamap, 0, 2249 dma->dmamap->dm_mapsize, BUS_DMASYNC_POSTWRITE); 2250 bus_dmamap_unload(sc->bge_dmatag, dma->dmamap); 2251 SLIST_INSERT_HEAD(&sc->txdma_list, dma, link); 2252 sc->txdma[idx] = NULL; 2253 2254 m_freem(m); 2255 } 2256 sc->bge_txcnt--; 2257 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT); 2258 ifp->if_timer = 0; 2259 } 2260 2261 if (cur_tx != NULL) 2262 ifp->if_flags &= ~IFF_OACTIVE; 2263 } 2264 2265 int 2266 bge_intr(xsc) 2267 void *xsc; 2268 { 2269 struct bge_softc *sc; 2270 struct ifnet *ifp; 2271 2272 sc = xsc; 2273 ifp = &sc->ethercom.ec_if; 2274 2275 #ifdef notdef 2276 /* Avoid this for now -- checking this register is expensive. */ 2277 /* Make sure this is really our interrupt. */ 2278 if (!(CSR_READ_4(sc, BGE_MISC_LOCAL_CTL) & BGE_MLC_INTR_STATE)) 2279 return (0); 2280 #endif 2281 /* Ack interrupt and stop others from occuring. */ 2282 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); 2283 2284 /* 2285 * Process link state changes. 2286 * Grrr. The link status word in the status block does 2287 * not work correctly on the BCM5700 rev AX and BX chips, 2288 * according to all avaibable information. Hence, we have 2289 * to enable MII interrupts in order to properly obtain 2290 * async link changes. Unfortunately, this also means that 2291 * we have to read the MAC status register to detect link 2292 * changes, thereby adding an additional register access to 2293 * the interrupt handler. 2294 */ 2295 2296 if (sc->bge_quirks & BGE_QUIRK_LINK_STATE_BROKEN) { 2297 u_int32_t status; 2298 2299 status = CSR_READ_4(sc, BGE_MAC_STS); 2300 if (status & BGE_MACSTAT_MI_INTERRUPT) { 2301 sc->bge_link = 0; 2302 callout_stop(&sc->bge_timeout); 2303 bge_tick(sc); 2304 /* Clear the interrupt */ 2305 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, 2306 BGE_EVTENB_MI_INTERRUPT); 2307 bge_miibus_readreg(&sc->bge_dev, 1, BRGPHY_MII_ISR); 2308 bge_miibus_writereg(&sc->bge_dev, 1, BRGPHY_MII_IMR, 2309 BRGPHY_INTRS); 2310 } 2311 } else { 2312 if (sc->bge_rdata->bge_status_block.bge_status & 2313 BGE_STATFLAG_LINKSTATE_CHANGED) { 2314 sc->bge_link = 0; 2315 callout_stop(&sc->bge_timeout); 2316 bge_tick(sc); 2317 /* Clear the interrupt */ 2318 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| 2319 BGE_MACSTAT_CFG_CHANGED); 2320 } 2321 } 2322 2323 if (ifp->if_flags & IFF_RUNNING) { 2324 /* Check RX return ring producer/consumer */ 2325 bge_rxeof(sc); 2326 2327 /* Check TX ring producer/consumer */ 2328 bge_txeof(sc); 2329 } 2330 2331 bge_handle_events(sc); 2332 2333 /* Re-enable interrupts. */ 2334 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); 2335 2336 if (ifp->if_flags & IFF_RUNNING && !IFQ_IS_EMPTY(&ifp->if_snd)) 2337 bge_start(ifp); 2338 2339 return (1); 2340 } 2341 2342 void 2343 bge_tick(xsc) 2344 void *xsc; 2345 { 2346 struct bge_softc *sc = xsc; 2347 struct mii_data *mii = &sc->bge_mii; 2348 struct ifmedia *ifm = NULL; 2349 struct ifnet *ifp = &sc->ethercom.ec_if; 2350 int s; 2351 2352 s = splnet(); 2353 2354 bge_stats_update(sc); 2355 callout_reset(&sc->bge_timeout, hz, bge_tick, sc); 2356 if (sc->bge_link) { 2357 splx(s); 2358 return; 2359 } 2360 2361 if (sc->bge_tbi) { 2362 ifm = &sc->bge_ifmedia; 2363 if (CSR_READ_4(sc, BGE_MAC_STS) & 2364 BGE_MACSTAT_TBI_PCS_SYNCHED) { 2365 sc->bge_link++; 2366 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF); 2367 printf("%s: gigabit link up\n", sc->bge_dev.dv_xname); 2368 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 2369 bge_start(ifp); 2370 } 2371 splx(s); 2372 return; 2373 } 2374 2375 mii_tick(mii); 2376 2377 if (!sc->bge_link && mii->mii_media_status & IFM_ACTIVE && 2378 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 2379 sc->bge_link++; 2380 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T || 2381 IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_SX) 2382 printf("%s: gigabit link up\n", sc->bge_dev.dv_xname); 2383 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 2384 bge_start(ifp); 2385 } 2386 2387 splx(s); 2388 } 2389 2390 void 2391 bge_stats_update(sc) 2392 struct bge_softc *sc; 2393 { 2394 struct ifnet *ifp = &sc->ethercom.ec_if; 2395 bus_size_t stats = BGE_MEMWIN_START + BGE_STATS_BLOCK; 2396 2397 #define READ_STAT(sc, stats, stat) \ 2398 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat)) 2399 2400 ifp->if_collisions += 2401 (READ_STAT(sc, stats, dot3StatsSingleCollisionFrames.bge_addr_lo) + 2402 READ_STAT(sc, stats, dot3StatsMultipleCollisionFrames.bge_addr_lo) + 2403 READ_STAT(sc, stats, dot3StatsExcessiveCollisions.bge_addr_lo) + 2404 READ_STAT(sc, stats, dot3StatsLateCollisions.bge_addr_lo)) - 2405 ifp->if_collisions; 2406 2407 #undef READ_STAT 2408 2409 #ifdef notdef 2410 ifp->if_collisions += 2411 (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames + 2412 sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames + 2413 sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions + 2414 sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) - 2415 ifp->if_collisions; 2416 #endif 2417 } 2418 2419 /* 2420 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data 2421 * pointers to descriptors. 2422 */ 2423 int 2424 bge_encap(sc, m_head, txidx) 2425 struct bge_softc *sc; 2426 struct mbuf *m_head; 2427 u_int32_t *txidx; 2428 { 2429 struct bge_tx_bd *f = NULL; 2430 u_int32_t frag, cur, cnt = 0; 2431 u_int16_t csum_flags = 0; 2432 struct txdmamap_pool_entry *dma; 2433 bus_dmamap_t dmamap; 2434 int i = 0; 2435 struct mbuf *n; 2436 2437 cur = frag = *txidx; 2438 2439 if (m_head->m_pkthdr.csum_flags) { 2440 if (m_head->m_pkthdr.csum_flags & M_CSUM_IPv4) 2441 csum_flags |= BGE_TXBDFLAG_IP_CSUM; 2442 if (m_head->m_pkthdr.csum_flags & (M_CSUM_TCPv4|M_CSUM_UDPv4)) 2443 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM; 2444 } 2445 2446 dma = SLIST_FIRST(&sc->txdma_list); 2447 if (dma == NULL) 2448 return ENOBUFS; 2449 dmamap = dma->dmamap; 2450 2451 /* 2452 * Start packing the mbufs in this chain into 2453 * the fragment pointers. Stop when we run out 2454 * of fragments or hit the end of the mbuf chain. 2455 */ 2456 if (bus_dmamap_load_mbuf(sc->bge_dmatag, dmamap, m_head, 2457 BUS_DMA_NOWAIT)) 2458 return(ENOBUFS); 2459 2460 n = sc->ethercom.ec_nvlans ? 2461 m_aux_find(m_head, AF_LINK, ETHERTYPE_VLAN) : NULL; 2462 2463 for (i = 0; i < dmamap->dm_nsegs; i++) { 2464 f = &sc->bge_rdata->bge_tx_ring[frag]; 2465 if (sc->bge_cdata.bge_tx_chain[frag] != NULL) 2466 break; 2467 bge_set_hostaddr(&f->bge_addr, dmamap->dm_segs[i].ds_addr); 2468 f->bge_len = dmamap->dm_segs[i].ds_len; 2469 f->bge_flags = csum_flags; 2470 2471 if (n != NULL) { 2472 f->bge_flags |= BGE_TXBDFLAG_VLAN_TAG; 2473 f->bge_vlan_tag = *mtod(n, int *); 2474 } else { 2475 f->bge_vlan_tag = 0; 2476 } 2477 /* 2478 * Sanity check: avoid coming within 16 descriptors 2479 * of the end of the ring. 2480 */ 2481 if ((BGE_TX_RING_CNT - (sc->bge_txcnt + cnt)) < 16) 2482 return(ENOBUFS); 2483 cur = frag; 2484 BGE_INC(frag, BGE_TX_RING_CNT); 2485 cnt++; 2486 } 2487 2488 if (i < dmamap->dm_nsegs) 2489 return ENOBUFS; 2490 2491 bus_dmamap_sync(sc->bge_dmatag, dmamap, 0, dmamap->dm_mapsize, 2492 BUS_DMASYNC_PREWRITE); 2493 2494 if (frag == sc->bge_tx_saved_considx) 2495 return(ENOBUFS); 2496 2497 sc->bge_rdata->bge_tx_ring[cur].bge_flags |= BGE_TXBDFLAG_END; 2498 sc->bge_cdata.bge_tx_chain[cur] = m_head; 2499 SLIST_REMOVE_HEAD(&sc->txdma_list, link); 2500 sc->txdma[cur] = dma; 2501 sc->bge_txcnt += cnt; 2502 2503 *txidx = frag; 2504 2505 return(0); 2506 } 2507 2508 /* 2509 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 2510 * to the mbuf data regions directly in the transmit descriptors. 2511 */ 2512 void 2513 bge_start(ifp) 2514 struct ifnet *ifp; 2515 { 2516 struct bge_softc *sc; 2517 struct mbuf *m_head = NULL; 2518 u_int32_t prodidx = 0; 2519 int pkts = 0; 2520 2521 sc = ifp->if_softc; 2522 2523 if (!sc->bge_link && ifp->if_snd.ifq_len < 10) 2524 return; 2525 2526 prodidx = CSR_READ_4(sc, BGE_MBX_TX_HOST_PROD0_LO); 2527 2528 while(sc->bge_cdata.bge_tx_chain[prodidx] == NULL) { 2529 IFQ_POLL(&ifp->if_snd, m_head); 2530 if (m_head == NULL) 2531 break; 2532 2533 #if 0 2534 /* 2535 * XXX 2536 * safety overkill. If this is a fragmented packet chain 2537 * with delayed TCP/UDP checksums, then only encapsulate 2538 * it if we have enough descriptors to handle the entire 2539 * chain at once. 2540 * (paranoia -- may not actually be needed) 2541 */ 2542 if (m_head->m_flags & M_FIRSTFRAG && 2543 m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) { 2544 if ((BGE_TX_RING_CNT - sc->bge_txcnt) < 2545 m_head->m_pkthdr.csum_data + 16) { 2546 ifp->if_flags |= IFF_OACTIVE; 2547 break; 2548 } 2549 } 2550 #endif 2551 2552 /* 2553 * Pack the data into the transmit ring. If we 2554 * don't have room, set the OACTIVE flag and wait 2555 * for the NIC to drain the ring. 2556 */ 2557 if (bge_encap(sc, m_head, &prodidx)) { 2558 ifp->if_flags |= IFF_OACTIVE; 2559 break; 2560 } 2561 2562 /* now we are committed to transmit the packet */ 2563 IFQ_DEQUEUE(&ifp->if_snd, m_head); 2564 pkts++; 2565 2566 #if NBPFILTER > 0 2567 /* 2568 * If there's a BPF listener, bounce a copy of this frame 2569 * to him. 2570 */ 2571 if (ifp->if_bpf) 2572 bpf_mtap(ifp->if_bpf, m_head); 2573 #endif 2574 } 2575 if (pkts == 0) 2576 return; 2577 2578 /* Transmit */ 2579 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); 2580 2581 /* 2582 * Set a timeout in case the chip goes out to lunch. 2583 */ 2584 ifp->if_timer = 5; 2585 } 2586 2587 int 2588 bge_init(ifp) 2589 struct ifnet *ifp; 2590 { 2591 struct bge_softc *sc = ifp->if_softc; 2592 u_int16_t *m; 2593 int s, error; 2594 2595 s = splnet(); 2596 2597 ifp = &sc->ethercom.ec_if; 2598 2599 /* Cancel pending I/O and flush buffers. */ 2600 bge_stop(sc); 2601 bge_reset(sc); 2602 bge_chipinit(sc); 2603 2604 /* 2605 * Init the various state machines, ring 2606 * control blocks and firmware. 2607 */ 2608 error = bge_blockinit(sc); 2609 if (error != 0) { 2610 printf("%s: initialization error %d\n", sc->bge_dev.dv_xname, 2611 error); 2612 splx(s); 2613 return error; 2614 } 2615 2616 ifp = &sc->ethercom.ec_if; 2617 2618 /* Specify MTU. */ 2619 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu + 2620 ETHER_HDR_LEN + ETHER_CRC_LEN); 2621 2622 /* Load our MAC address. */ 2623 m = (u_int16_t *)&(LLADDR(ifp->if_sadl)[0]); 2624 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0])); 2625 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2])); 2626 2627 /* Enable or disable promiscuous mode as needed. */ 2628 if (ifp->if_flags & IFF_PROMISC) { 2629 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); 2630 } else { 2631 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); 2632 } 2633 2634 /* Program multicast filter. */ 2635 bge_setmulti(sc); 2636 2637 /* Init RX ring. */ 2638 bge_init_rx_ring_std(sc); 2639 2640 /* Init jumbo RX ring. */ 2641 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) 2642 bge_init_rx_ring_jumbo(sc); 2643 2644 /* Init our RX return ring index */ 2645 sc->bge_rx_saved_considx = 0; 2646 2647 /* Init TX ring. */ 2648 bge_init_tx_ring(sc); 2649 2650 /* Turn on transmitter */ 2651 BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE); 2652 2653 /* Turn on receiver */ 2654 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); 2655 2656 /* Tell firmware we're alive. */ 2657 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 2658 2659 /* Enable host interrupts. */ 2660 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA); 2661 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); 2662 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); 2663 2664 bge_ifmedia_upd(ifp); 2665 2666 ifp->if_flags |= IFF_RUNNING; 2667 ifp->if_flags &= ~IFF_OACTIVE; 2668 2669 splx(s); 2670 2671 callout_reset(&sc->bge_timeout, hz, bge_tick, sc); 2672 2673 return 0; 2674 } 2675 2676 /* 2677 * Set media options. 2678 */ 2679 int 2680 bge_ifmedia_upd(ifp) 2681 struct ifnet *ifp; 2682 { 2683 struct bge_softc *sc = ifp->if_softc; 2684 struct mii_data *mii = &sc->bge_mii; 2685 struct ifmedia *ifm = &sc->bge_ifmedia; 2686 2687 /* If this is a 1000baseX NIC, enable the TBI port. */ 2688 if (sc->bge_tbi) { 2689 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 2690 return(EINVAL); 2691 switch(IFM_SUBTYPE(ifm->ifm_media)) { 2692 case IFM_AUTO: 2693 break; 2694 case IFM_1000_SX: 2695 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { 2696 BGE_CLRBIT(sc, BGE_MAC_MODE, 2697 BGE_MACMODE_HALF_DUPLEX); 2698 } else { 2699 BGE_SETBIT(sc, BGE_MAC_MODE, 2700 BGE_MACMODE_HALF_DUPLEX); 2701 } 2702 break; 2703 default: 2704 return(EINVAL); 2705 } 2706 return(0); 2707 } 2708 2709 sc->bge_link = 0; 2710 mii_mediachg(mii); 2711 2712 return(0); 2713 } 2714 2715 /* 2716 * Report current media status. 2717 */ 2718 void 2719 bge_ifmedia_sts(ifp, ifmr) 2720 struct ifnet *ifp; 2721 struct ifmediareq *ifmr; 2722 { 2723 struct bge_softc *sc = ifp->if_softc; 2724 struct mii_data *mii = &sc->bge_mii; 2725 2726 if (sc->bge_tbi) { 2727 ifmr->ifm_status = IFM_AVALID; 2728 ifmr->ifm_active = IFM_ETHER; 2729 if (CSR_READ_4(sc, BGE_MAC_STS) & 2730 BGE_MACSTAT_TBI_PCS_SYNCHED) 2731 ifmr->ifm_status |= IFM_ACTIVE; 2732 ifmr->ifm_active |= IFM_1000_SX; 2733 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX) 2734 ifmr->ifm_active |= IFM_HDX; 2735 else 2736 ifmr->ifm_active |= IFM_FDX; 2737 return; 2738 } 2739 2740 mii_pollstat(mii); 2741 ifmr->ifm_active = mii->mii_media_active; 2742 ifmr->ifm_status = mii->mii_media_status; 2743 } 2744 2745 int 2746 bge_ioctl(ifp, command, data) 2747 struct ifnet *ifp; 2748 u_long command; 2749 caddr_t data; 2750 { 2751 struct bge_softc *sc = ifp->if_softc; 2752 struct ifreq *ifr = (struct ifreq *) data; 2753 int s, error = 0; 2754 struct mii_data *mii; 2755 2756 s = splnet(); 2757 2758 switch(command) { 2759 case SIOCSIFFLAGS: 2760 if (ifp->if_flags & IFF_UP) { 2761 /* 2762 * If only the state of the PROMISC flag changed, 2763 * then just use the 'set promisc mode' command 2764 * instead of reinitializing the entire NIC. Doing 2765 * a full re-init means reloading the firmware and 2766 * waiting for it to start up, which may take a 2767 * second or two. 2768 */ 2769 if (ifp->if_flags & IFF_RUNNING && 2770 ifp->if_flags & IFF_PROMISC && 2771 !(sc->bge_if_flags & IFF_PROMISC)) { 2772 BGE_SETBIT(sc, BGE_RX_MODE, 2773 BGE_RXMODE_RX_PROMISC); 2774 } else if (ifp->if_flags & IFF_RUNNING && 2775 !(ifp->if_flags & IFF_PROMISC) && 2776 sc->bge_if_flags & IFF_PROMISC) { 2777 BGE_CLRBIT(sc, BGE_RX_MODE, 2778 BGE_RXMODE_RX_PROMISC); 2779 } else 2780 bge_init(ifp); 2781 } else { 2782 if (ifp->if_flags & IFF_RUNNING) { 2783 bge_stop(sc); 2784 } 2785 } 2786 sc->bge_if_flags = ifp->if_flags; 2787 error = 0; 2788 break; 2789 case SIOCSIFMEDIA: 2790 case SIOCGIFMEDIA: 2791 if (sc->bge_tbi) { 2792 error = ifmedia_ioctl(ifp, ifr, &sc->bge_ifmedia, 2793 command); 2794 } else { 2795 mii = &sc->bge_mii; 2796 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, 2797 command); 2798 } 2799 error = 0; 2800 break; 2801 default: 2802 error = ether_ioctl(ifp, command, data); 2803 if (error == ENETRESET) { 2804 bge_setmulti(sc); 2805 error = 0; 2806 } 2807 break; 2808 } 2809 2810 splx(s); 2811 2812 return(error); 2813 } 2814 2815 void 2816 bge_watchdog(ifp) 2817 struct ifnet *ifp; 2818 { 2819 struct bge_softc *sc; 2820 2821 sc = ifp->if_softc; 2822 2823 printf("%s: watchdog timeout -- resetting\n", sc->bge_dev.dv_xname); 2824 2825 ifp->if_flags &= ~IFF_RUNNING; 2826 bge_init(ifp); 2827 2828 ifp->if_oerrors++; 2829 } 2830 2831 static void 2832 bge_stop_block(struct bge_softc *sc, bus_addr_t reg, uint32_t bit) 2833 { 2834 int i; 2835 2836 BGE_CLRBIT(sc, reg, bit); 2837 2838 for (i = 0; i < BGE_TIMEOUT; i++) { 2839 if ((CSR_READ_4(sc, reg) & bit) == 0) 2840 return; 2841 delay(100); 2842 } 2843 2844 printf("%s: block failed to stop: reg 0x%lx, bit 0x%08x\n", 2845 sc->bge_dev.dv_xname, (u_long) reg, bit); 2846 } 2847 2848 /* 2849 * Stop the adapter and free any mbufs allocated to the 2850 * RX and TX lists. 2851 */ 2852 void 2853 bge_stop(sc) 2854 struct bge_softc *sc; 2855 { 2856 struct ifnet *ifp = &sc->ethercom.ec_if; 2857 2858 callout_stop(&sc->bge_timeout); 2859 2860 /* 2861 * Disable all of the receiver blocks 2862 */ 2863 bge_stop_block(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); 2864 bge_stop_block(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); 2865 bge_stop_block(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); 2866 bge_stop_block(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); 2867 bge_stop_block(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE); 2868 bge_stop_block(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); 2869 bge_stop_block(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE); 2870 2871 /* 2872 * Disable all of the transmit blocks 2873 */ 2874 bge_stop_block(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); 2875 bge_stop_block(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); 2876 bge_stop_block(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); 2877 bge_stop_block(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE); 2878 bge_stop_block(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); 2879 bge_stop_block(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); 2880 bge_stop_block(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); 2881 2882 /* 2883 * Shut down all of the memory managers and related 2884 * state machines. 2885 */ 2886 bge_stop_block(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); 2887 bge_stop_block(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE); 2888 bge_stop_block(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); 2889 2890 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); 2891 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); 2892 2893 bge_stop_block(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE); 2894 bge_stop_block(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); 2895 2896 /* Disable host interrupts. */ 2897 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); 2898 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); 2899 2900 /* 2901 * Tell firmware we're shutting down. 2902 */ 2903 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 2904 2905 /* Free the RX lists. */ 2906 bge_free_rx_ring_std(sc); 2907 2908 /* Free jumbo RX list. */ 2909 bge_free_rx_ring_jumbo(sc); 2910 2911 /* Free TX buffers. */ 2912 bge_free_tx_ring(sc); 2913 2914 /* 2915 * Isolate/power down the PHY. 2916 */ 2917 if (!sc->bge_tbi) 2918 mii_down(&sc->bge_mii); 2919 2920 sc->bge_link = 0; 2921 2922 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET; 2923 2924 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2925 } 2926 2927 /* 2928 * Stop all chip I/O so that the kernel's probe routines don't 2929 * get confused by errant DMAs when rebooting. 2930 */ 2931 void 2932 bge_shutdown(xsc) 2933 void *xsc; 2934 { 2935 struct bge_softc *sc = (struct bge_softc *)xsc; 2936 2937 bge_stop(sc); 2938 bge_reset(sc); 2939 } 2940
Indexes created Tue Sep 23 02:09:52 GMT 2025