if_bge.c revision 1.126
1 /* $NetBSD: if_bge.c,v 1.126 2007/03/04 06:02:19 christos 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 * Jonathan Stone <jonathan (at) dsg.stanford.edu> 46 * 47 * Originally written for FreeBSD by Bill Paul <wpaul (at) windriver.com> 48 * Senior Engineer, Wind River Systems 49 */ 50 51 /* 52 * The Broadcom BCM5700 is based on technology originally developed by 53 * Alteon Networks as part of the Tigon I and Tigon II gigabit ethernet 54 * MAC chips. The BCM5700, sometimes refered to as the Tigon III, has 55 * two on-board MIPS R4000 CPUs and can have as much as 16MB of external 56 * SSRAM. The BCM5700 supports TCP, UDP and IP checksum offload, jumbo 57 * frames, highly configurable RX filtering, and 16 RX and TX queues 58 * (which, along with RX filter rules, can be used for QOS applications). 59 * Other features, such as TCP segmentation, may be available as part 60 * of value-added firmware updates. Unlike the Tigon I and Tigon II, 61 * firmware images can be stored in hardware and need not be compiled 62 * into the driver. 63 * 64 * The BCM5700 supports the PCI v2.2 and PCI-X v1.0 standards, and will 65 * function in a 32-bit/64-bit 33/66MHz bus, or a 64-bit/133MHz bus. 66 * 67 * The BCM5701 is a single-chip solution incorporating both the BCM5700 68 * MAC and a BCM5401 10/100/1000 PHY. Unlike the BCM5700, the BCM5701 69 * does not support external SSRAM. 70 * 71 * Broadcom also produces a variation of the BCM5700 under the "Altima" 72 * brand name, which is functionally similar but lacks PCI-X support. 73 * 74 * Without external SSRAM, you can only have at most 4 TX rings, 75 * and the use of the mini RX ring is disabled. This seems to imply 76 * that these features are simply not available on the BCM5701. As a 77 * result, this driver does not implement any support for the mini RX 78 * ring. 79 */ 80 81 #include <sys/cdefs.h> 82 __KERNEL_RCSID(0, "$NetBSD: if_bge.c,v 1.126 2007/03/04 06:02:19 christos Exp $"); 83 84 #include "bpfilter.h" 85 #include "vlan.h" 86 87 #include <sys/param.h> 88 #include <sys/systm.h> 89 #include <sys/callout.h> 90 #include <sys/sockio.h> 91 #include <sys/mbuf.h> 92 #include <sys/malloc.h> 93 #include <sys/kernel.h> 94 #include <sys/device.h> 95 #include <sys/socket.h> 96 #include <sys/sysctl.h> 97 98 #include <net/if.h> 99 #include <net/if_dl.h> 100 #include <net/if_media.h> 101 #include <net/if_ether.h> 102 103 #ifdef INET 104 #include <netinet/in.h> 105 #include <netinet/in_systm.h> 106 #include <netinet/in_var.h> 107 #include <netinet/ip.h> 108 #endif 109 110 /* Headers for TCP Segmentation Offload (TSO) */ 111 #include <netinet/in_systm.h> /* n_time for <netinet/ip.h>... */ 112 #include <netinet/in.h> /* ip_{src,dst}, for <netinet/ip.h> */ 113 #include <netinet/ip.h> /* for struct ip */ 114 #include <netinet/tcp.h> /* for struct tcphdr */ 115 116 117 #if NBPFILTER > 0 118 #include <net/bpf.h> 119 #endif 120 121 #include <dev/pci/pcireg.h> 122 #include <dev/pci/pcivar.h> 123 #include <dev/pci/pcidevs.h> 124 125 #include <dev/mii/mii.h> 126 #include <dev/mii/miivar.h> 127 #include <dev/mii/miidevs.h> 128 #include <dev/mii/brgphyreg.h> 129 130 #include <dev/pci/if_bgereg.h> 131 132 #include <uvm/uvm_extern.h> 133 134 #define ETHER_MIN_NOPAD (ETHER_MIN_LEN - ETHER_CRC_LEN) /* i.e., 60 */ 135 136 137 /* 138 * Tunable thresholds for rx-side bge interrupt mitigation. 139 */ 140 141 /* 142 * The pairs of values below were obtained from empirical measurement 143 * on bcm5700 rev B2; they ar designed to give roughly 1 receive 144 * interrupt for every N packets received, where N is, approximately, 145 * the second value (rx_max_bds) in each pair. The values are chosen 146 * such that moving from one pair to the succeeding pair was observed 147 * to roughly halve interrupt rate under sustained input packet load. 148 * The values were empirically chosen to avoid overflowing internal 149 * limits on the bcm5700: inreasing rx_ticks much beyond 600 150 * results in internal wrapping and higher interrupt rates. 151 * The limit of 46 frames was chosen to match NFS workloads. 152 * 153 * These values also work well on bcm5701, bcm5704C, and (less 154 * tested) bcm5703. On other chipsets, (including the Altima chip 155 * family), the larger values may overflow internal chip limits, 156 * leading to increasing interrupt rates rather than lower interrupt 157 * rates. 158 * 159 * Applications using heavy interrupt mitigation (interrupting every 160 * 32 or 46 frames) in both directions may need to increase the TCP 161 * windowsize to above 131072 bytes (e.g., to 199608 bytes) to sustain 162 * full link bandwidth, due to ACKs and window updates lingering 163 * in the RX queue during the 30-to-40-frame interrupt-mitigation window. 164 */ 165 static const struct bge_load_rx_thresh { 166 int rx_ticks; 167 int rx_max_bds; } 168 bge_rx_threshes[] = { 169 { 32, 2 }, 170 { 50, 4 }, 171 { 100, 8 }, 172 { 192, 16 }, 173 { 416, 32 }, 174 { 598, 46 } 175 }; 176 #define NBGE_RX_THRESH (sizeof(bge_rx_threshes) / sizeof(bge_rx_threshes[0])) 177 178 /* XXX patchable; should be sysctl'able */ 179 static int bge_auto_thresh = 1; 180 static int bge_rx_thresh_lvl; 181 182 static int bge_rxthresh_nodenum; 183 184 static int bge_probe(device_t, cfdata_t, void *); 185 static void bge_attach(device_t, device_t, void *); 186 static void bge_powerhook(int, void *); 187 static void bge_release_resources(struct bge_softc *); 188 static void bge_txeof(struct bge_softc *); 189 static void bge_rxeof(struct bge_softc *); 190 191 static void bge_tick(void *); 192 static void bge_stats_update(struct bge_softc *); 193 static int bge_encap(struct bge_softc *, struct mbuf *, u_int32_t *); 194 195 static int bge_intr(void *); 196 static void bge_start(struct ifnet *); 197 static int bge_ioctl(struct ifnet *, u_long, void *); 198 static int bge_init(struct ifnet *); 199 static void bge_stop(struct bge_softc *); 200 static void bge_watchdog(struct ifnet *); 201 static void bge_shutdown(void *); 202 static int bge_ifmedia_upd(struct ifnet *); 203 static void bge_ifmedia_sts(struct ifnet *, struct ifmediareq *); 204 205 static void bge_setmulti(struct bge_softc *); 206 207 static void bge_handle_events(struct bge_softc *); 208 static int bge_alloc_jumbo_mem(struct bge_softc *); 209 #if 0 /* XXX */ 210 static void bge_free_jumbo_mem(struct bge_softc *); 211 #endif 212 static void *bge_jalloc(struct bge_softc *); 213 static void bge_jfree(struct mbuf *, void *, size_t, void *); 214 static int bge_newbuf_std(struct bge_softc *, int, struct mbuf *, 215 bus_dmamap_t); 216 static int bge_newbuf_jumbo(struct bge_softc *, int, struct mbuf *); 217 static int bge_init_rx_ring_std(struct bge_softc *); 218 static void bge_free_rx_ring_std(struct bge_softc *); 219 static int bge_init_rx_ring_jumbo(struct bge_softc *); 220 static void bge_free_rx_ring_jumbo(struct bge_softc *); 221 static void bge_free_tx_ring(struct bge_softc *); 222 static int bge_init_tx_ring(struct bge_softc *); 223 224 static int bge_chipinit(struct bge_softc *); 225 static int bge_blockinit(struct bge_softc *); 226 static int bge_setpowerstate(struct bge_softc *, int); 227 228 static void bge_reset(struct bge_softc *); 229 230 #define BGE_DEBUG 231 #ifdef BGE_DEBUG 232 #define DPRINTF(x) if (bgedebug) printf x 233 #define DPRINTFN(n,x) if (bgedebug >= (n)) printf x 234 #define BGE_TSO_PRINTF(x) do { if (bge_tso_debug) printf x ;} while (0) 235 int bgedebug = 0; 236 int bge_tso_debug = 0; 237 #else 238 #define DPRINTF(x) 239 #define DPRINTFN(n,x) 240 #define BGE_TSO_PRINTF(x) 241 #endif 242 243 #ifdef BGE_EVENT_COUNTERS 244 #define BGE_EVCNT_INCR(ev) (ev).ev_count++ 245 #define BGE_EVCNT_ADD(ev, val) (ev).ev_count += (val) 246 #define BGE_EVCNT_UPD(ev, val) (ev).ev_count = (val) 247 #else 248 #define BGE_EVCNT_INCR(ev) /* nothing */ 249 #define BGE_EVCNT_ADD(ev, val) /* nothing */ 250 #define BGE_EVCNT_UPD(ev, val) /* nothing */ 251 #endif 252 253 /* Various chip quirks. */ 254 #define BGE_QUIRK_LINK_STATE_BROKEN 0x00000001 255 #define BGE_QUIRK_CSUM_BROKEN 0x00000002 256 #define BGE_QUIRK_ONLY_PHY_1 0x00000004 257 #define BGE_QUIRK_5700_SMALLDMA 0x00000008 258 #define BGE_QUIRK_5700_PCIX_REG_BUG 0x00000010 259 #define BGE_QUIRK_PRODUCER_BUG 0x00000020 260 #define BGE_QUIRK_PCIX_DMA_ALIGN_BUG 0x00000040 261 #define BGE_QUIRK_5705_CORE 0x00000080 262 #define BGE_QUIRK_FEWER_MBUFS 0x00000100 263 264 /* 265 * XXX: how to handle variants based on 5750 and derivatives: 266 * 5750 5751, 5721, possibly 5714, 5752, and 5708?, which 267 * in general behave like a 5705, except with additional quirks. 268 * This driver's current handling of the 5721 is wrong; 269 * how we map ASIC revision to "quirks" needs more thought. 270 * (defined here until the thought is done). 271 */ 272 #define BGE_IS_5714_FAMILY(sc) \ 273 (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5714_A0 || \ 274 BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5780 || \ 275 BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5714 ) 276 277 #define BGE_IS_5750_OR_BEYOND(sc) \ 278 (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5750 || \ 279 BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5752 || \ 280 BGE_IS_5714_FAMILY(sc) ) 281 282 #define BGE_IS_5705_OR_BEYOND(sc) \ 283 ( ((sc)->bge_quirks & BGE_QUIRK_5705_CORE) || \ 284 BGE_IS_5750_OR_BEYOND(sc) ) 285 286 287 /* following bugs are common to bcm5700 rev B, all flavours */ 288 #define BGE_QUIRK_5700_COMMON \ 289 (BGE_QUIRK_5700_SMALLDMA|BGE_QUIRK_PRODUCER_BUG) 290 291 CFATTACH_DECL(bge, sizeof(struct bge_softc), 292 bge_probe, bge_attach, NULL, NULL); 293 294 static u_int32_t 295 bge_readmem_ind(struct bge_softc *sc, int off) 296 { 297 struct pci_attach_args *pa = &(sc->bge_pa); 298 pcireg_t val; 299 300 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_BASEADDR, off); 301 val = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_DATA); 302 return val; 303 } 304 305 static void 306 bge_writemem_ind(struct bge_softc *sc, int off, int val) 307 { 308 struct pci_attach_args *pa = &(sc->bge_pa); 309 310 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_BASEADDR, off); 311 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MEMWIN_DATA, val); 312 } 313 314 #ifdef notdef 315 static u_int32_t 316 bge_readreg_ind(struct bge_softc *sc, int off) 317 { 318 struct pci_attach_args *pa = &(sc->bge_pa); 319 320 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_BASEADDR, off); 321 return(pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_DATA)); 322 } 323 #endif 324 325 static void 326 bge_writereg_ind(struct bge_softc *sc, int off, int val) 327 { 328 struct pci_attach_args *pa = &(sc->bge_pa); 329 330 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_BASEADDR, off); 331 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_REG_DATA, val); 332 } 333 334 #ifdef notdef 335 static u_int8_t 336 bge_vpd_readbyte(struct bge_softc *sc, int addr) 337 { 338 int i; 339 u_int32_t val; 340 struct pci_attach_args *pa = &(sc->bge_pa); 341 342 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_ADDR, addr); 343 for (i = 0; i < BGE_TIMEOUT * 10; i++) { 344 DELAY(10); 345 if (pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_ADDR) & 346 BGE_VPD_FLAG) 347 break; 348 } 349 350 if (i == BGE_TIMEOUT) { 351 printf("%s: VPD read timed out\n", sc->bge_dev.dv_xname); 352 return(0); 353 } 354 355 val = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_VPD_DATA); 356 357 return((val >> ((addr % 4) * 8)) & 0xFF); 358 } 359 360 static void 361 bge_vpd_read_res(struct bge_softc *sc, struct vpd_res *res, int addr) 362 { 363 int i; 364 u_int8_t *ptr; 365 366 ptr = (u_int8_t *)res; 367 for (i = 0; i < sizeof(struct vpd_res); i++) 368 ptr[i] = bge_vpd_readbyte(sc, i + addr); 369 } 370 371 static void 372 bge_vpd_read(struct bge_softc *sc) 373 { 374 int pos = 0, i; 375 struct vpd_res res; 376 377 if (sc->bge_vpd_prodname != NULL) 378 free(sc->bge_vpd_prodname, M_DEVBUF); 379 if (sc->bge_vpd_readonly != NULL) 380 free(sc->bge_vpd_readonly, M_DEVBUF); 381 sc->bge_vpd_prodname = NULL; 382 sc->bge_vpd_readonly = NULL; 383 384 bge_vpd_read_res(sc, &res, pos); 385 386 if (res.vr_id != VPD_RES_ID) { 387 printf("%s: bad VPD resource id: expected %x got %x\n", 388 sc->bge_dev.dv_xname, VPD_RES_ID, res.vr_id); 389 return; 390 } 391 392 pos += sizeof(res); 393 sc->bge_vpd_prodname = malloc(res.vr_len + 1, M_DEVBUF, M_NOWAIT); 394 if (sc->bge_vpd_prodname == NULL) 395 panic("bge_vpd_read"); 396 for (i = 0; i < res.vr_len; i++) 397 sc->bge_vpd_prodname[i] = bge_vpd_readbyte(sc, i + pos); 398 sc->bge_vpd_prodname[i] = '\0'; 399 pos += i; 400 401 bge_vpd_read_res(sc, &res, pos); 402 403 if (res.vr_id != VPD_RES_READ) { 404 printf("%s: bad VPD resource id: expected %x got %x\n", 405 sc->bge_dev.dv_xname, VPD_RES_READ, res.vr_id); 406 return; 407 } 408 409 pos += sizeof(res); 410 sc->bge_vpd_readonly = malloc(res.vr_len, M_DEVBUF, M_NOWAIT); 411 if (sc->bge_vpd_readonly == NULL) 412 panic("bge_vpd_read"); 413 for (i = 0; i < res.vr_len + 1; i++) 414 sc->bge_vpd_readonly[i] = bge_vpd_readbyte(sc, i + pos); 415 } 416 #endif 417 418 /* 419 * Read a byte of data stored in the EEPROM at address 'addr.' The 420 * BCM570x supports both the traditional bitbang interface and an 421 * auto access interface for reading the EEPROM. We use the auto 422 * access method. 423 */ 424 static u_int8_t 425 bge_eeprom_getbyte(struct bge_softc *sc, int addr, u_int8_t *dest) 426 { 427 int i; 428 u_int32_t byte = 0; 429 430 /* 431 * Enable use of auto EEPROM access so we can avoid 432 * having to use the bitbang method. 433 */ 434 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_AUTO_EEPROM); 435 436 /* Reset the EEPROM, load the clock period. */ 437 CSR_WRITE_4(sc, BGE_EE_ADDR, 438 BGE_EEADDR_RESET|BGE_EEHALFCLK(BGE_HALFCLK_384SCL)); 439 DELAY(20); 440 441 /* Issue the read EEPROM command. */ 442 CSR_WRITE_4(sc, BGE_EE_ADDR, BGE_EE_READCMD | addr); 443 444 /* Wait for completion */ 445 for(i = 0; i < BGE_TIMEOUT * 10; i++) { 446 DELAY(10); 447 if (CSR_READ_4(sc, BGE_EE_ADDR) & BGE_EEADDR_DONE) 448 break; 449 } 450 451 if (i == BGE_TIMEOUT) { 452 printf("%s: eeprom read timed out\n", sc->bge_dev.dv_xname); 453 return(0); 454 } 455 456 /* Get result. */ 457 byte = CSR_READ_4(sc, BGE_EE_DATA); 458 459 *dest = (byte >> ((addr % 4) * 8)) & 0xFF; 460 461 return(0); 462 } 463 464 /* 465 * Read a sequence of bytes from the EEPROM. 466 */ 467 static int 468 bge_read_eeprom(struct bge_softc *sc, void *destv, int off, int cnt) 469 { 470 int err = 0, i; 471 u_int8_t byte = 0; 472 char *dest = destv; 473 474 for (i = 0; i < cnt; i++) { 475 err = bge_eeprom_getbyte(sc, off + i, &byte); 476 if (err) 477 break; 478 *(dest + i) = byte; 479 } 480 481 return(err ? 1 : 0); 482 } 483 484 static int 485 bge_miibus_readreg(device_t dev, int phy, int reg) 486 { 487 struct bge_softc *sc = (struct bge_softc *)dev; 488 u_int32_t val; 489 u_int32_t saved_autopoll; 490 int i; 491 492 /* 493 * Several chips with builtin PHYs will incorrectly answer to 494 * other PHY instances than the builtin PHY at id 1. 495 */ 496 if (phy != 1 && (sc->bge_quirks & BGE_QUIRK_ONLY_PHY_1)) 497 return(0); 498 499 /* Reading with autopolling on may trigger PCI errors */ 500 saved_autopoll = CSR_READ_4(sc, BGE_MI_MODE); 501 if (saved_autopoll & BGE_MIMODE_AUTOPOLL) { 502 CSR_WRITE_4(sc, BGE_MI_MODE, 503 saved_autopoll &~ BGE_MIMODE_AUTOPOLL); 504 DELAY(40); 505 } 506 507 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_READ|BGE_MICOMM_BUSY| 508 BGE_MIPHY(phy)|BGE_MIREG(reg)); 509 510 for (i = 0; i < BGE_TIMEOUT; i++) { 511 val = CSR_READ_4(sc, BGE_MI_COMM); 512 if (!(val & BGE_MICOMM_BUSY)) 513 break; 514 delay(10); 515 } 516 517 if (i == BGE_TIMEOUT) { 518 printf("%s: PHY read timed out\n", sc->bge_dev.dv_xname); 519 val = 0; 520 goto done; 521 } 522 523 val = CSR_READ_4(sc, BGE_MI_COMM); 524 525 done: 526 if (saved_autopoll & BGE_MIMODE_AUTOPOLL) { 527 CSR_WRITE_4(sc, BGE_MI_MODE, saved_autopoll); 528 DELAY(40); 529 } 530 531 if (val & BGE_MICOMM_READFAIL) 532 return(0); 533 534 return(val & 0xFFFF); 535 } 536 537 static void 538 bge_miibus_writereg(device_t dev, int phy, int reg, int val) 539 { 540 struct bge_softc *sc = (struct bge_softc *)dev; 541 u_int32_t saved_autopoll; 542 int i; 543 544 /* Touching the PHY while autopolling is on may trigger PCI errors */ 545 saved_autopoll = CSR_READ_4(sc, BGE_MI_MODE); 546 if (saved_autopoll & BGE_MIMODE_AUTOPOLL) { 547 delay(40); 548 CSR_WRITE_4(sc, BGE_MI_MODE, 549 saved_autopoll & (~BGE_MIMODE_AUTOPOLL)); 550 delay(10); /* 40 usec is supposed to be adequate */ 551 } 552 553 CSR_WRITE_4(sc, BGE_MI_COMM, BGE_MICMD_WRITE|BGE_MICOMM_BUSY| 554 BGE_MIPHY(phy)|BGE_MIREG(reg)|val); 555 556 for (i = 0; i < BGE_TIMEOUT; i++) { 557 if (!(CSR_READ_4(sc, BGE_MI_COMM) & BGE_MICOMM_BUSY)) 558 break; 559 delay(10); 560 } 561 562 if (saved_autopoll & BGE_MIMODE_AUTOPOLL) { 563 CSR_WRITE_4(sc, BGE_MI_MODE, saved_autopoll); 564 delay(40); 565 } 566 567 if (i == BGE_TIMEOUT) { 568 printf("%s: PHY read timed out\n", sc->bge_dev.dv_xname); 569 } 570 } 571 572 static void 573 bge_miibus_statchg(device_t dev) 574 { 575 struct bge_softc *sc = (struct bge_softc *)dev; 576 struct mii_data *mii = &sc->bge_mii; 577 578 /* 579 * Get flow control negotiation result. 580 */ 581 if (IFM_SUBTYPE(mii->mii_media.ifm_cur->ifm_media) == IFM_AUTO && 582 (mii->mii_media_active & IFM_ETH_FMASK) != sc->bge_flowflags) { 583 sc->bge_flowflags = mii->mii_media_active & IFM_ETH_FMASK; 584 mii->mii_media_active &= ~IFM_ETH_FMASK; 585 } 586 587 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_PORTMODE); 588 if (IFM_SUBTYPE(mii->mii_media_active) == IFM_1000_T) { 589 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_GMII); 590 } else { 591 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_PORTMODE_MII); 592 } 593 594 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) { 595 BGE_CLRBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); 596 } else { 597 BGE_SETBIT(sc, BGE_MAC_MODE, BGE_MACMODE_HALF_DUPLEX); 598 } 599 600 /* 601 * 802.3x flow control 602 */ 603 if (sc->bge_flowflags & IFM_ETH_RXPAUSE) { 604 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_FLOWCTL_ENABLE); 605 } else { 606 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_FLOWCTL_ENABLE); 607 } 608 if (sc->bge_flowflags & IFM_ETH_TXPAUSE) { 609 BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_FLOWCTL_ENABLE); 610 } else { 611 BGE_CLRBIT(sc, BGE_TX_MODE, BGE_TXMODE_FLOWCTL_ENABLE); 612 } 613 } 614 615 /* 616 * Update rx threshold levels to values in a particular slot 617 * of the interrupt-mitigation table bge_rx_threshes. 618 */ 619 static void 620 bge_set_thresh(struct ifnet *ifp, int lvl) 621 { 622 struct bge_softc *sc = ifp->if_softc; 623 int s; 624 625 /* For now, just save the new Rx-intr thresholds and record 626 * that a threshold update is pending. Updating the hardware 627 * registers here (even at splhigh()) is observed to 628 * occasionaly cause glitches where Rx-interrupts are not 629 * honoured for up to 10 seconds. jonathan (at) NetBSD.org, 2003-04-05 630 */ 631 s = splnet(); 632 sc->bge_rx_coal_ticks = bge_rx_threshes[lvl].rx_ticks; 633 sc->bge_rx_max_coal_bds = bge_rx_threshes[lvl].rx_max_bds; 634 sc->bge_pending_rxintr_change = 1; 635 splx(s); 636 637 return; 638 } 639 640 641 /* 642 * Update Rx thresholds of all bge devices 643 */ 644 static void 645 bge_update_all_threshes(int lvl) 646 { 647 struct ifnet *ifp; 648 const char * const namebuf = "bge"; 649 int namelen; 650 651 if (lvl < 0) 652 lvl = 0; 653 else if( lvl >= NBGE_RX_THRESH) 654 lvl = NBGE_RX_THRESH - 1; 655 656 namelen = strlen(namebuf); 657 /* 658 * Now search all the interfaces for this name/number 659 */ 660 IFNET_FOREACH(ifp) { 661 if (strncmp(ifp->if_xname, namebuf, namelen) != 0) 662 continue; 663 /* We got a match: update if doing auto-threshold-tuning */ 664 if (bge_auto_thresh) 665 bge_set_thresh(ifp, lvl); 666 } 667 } 668 669 /* 670 * Handle events that have triggered interrupts. 671 */ 672 static void 673 bge_handle_events(struct bge_softc *sc) 674 { 675 676 return; 677 } 678 679 /* 680 * Memory management for jumbo frames. 681 */ 682 683 static int 684 bge_alloc_jumbo_mem(struct bge_softc *sc) 685 { 686 char *ptr, *kva; 687 bus_dma_segment_t seg; 688 int i, rseg, state, error; 689 struct bge_jpool_entry *entry; 690 691 state = error = 0; 692 693 /* Grab a big chunk o' storage. */ 694 if (bus_dmamem_alloc(sc->bge_dmatag, BGE_JMEM, PAGE_SIZE, 0, 695 &seg, 1, &rseg, BUS_DMA_NOWAIT)) { 696 printf("%s: can't alloc rx buffers\n", sc->bge_dev.dv_xname); 697 return ENOBUFS; 698 } 699 700 state = 1; 701 if (bus_dmamem_map(sc->bge_dmatag, &seg, rseg, BGE_JMEM, (void **)&kva, 702 BUS_DMA_NOWAIT)) { 703 printf("%s: can't map DMA buffers (%d bytes)\n", 704 sc->bge_dev.dv_xname, (int)BGE_JMEM); 705 error = ENOBUFS; 706 goto out; 707 } 708 709 state = 2; 710 if (bus_dmamap_create(sc->bge_dmatag, BGE_JMEM, 1, BGE_JMEM, 0, 711 BUS_DMA_NOWAIT, &sc->bge_cdata.bge_rx_jumbo_map)) { 712 printf("%s: can't create DMA map\n", sc->bge_dev.dv_xname); 713 error = ENOBUFS; 714 goto out; 715 } 716 717 state = 3; 718 if (bus_dmamap_load(sc->bge_dmatag, sc->bge_cdata.bge_rx_jumbo_map, 719 kva, BGE_JMEM, NULL, BUS_DMA_NOWAIT)) { 720 printf("%s: can't load DMA map\n", sc->bge_dev.dv_xname); 721 error = ENOBUFS; 722 goto out; 723 } 724 725 state = 4; 726 sc->bge_cdata.bge_jumbo_buf = (void *)kva; 727 DPRINTFN(1,("bge_jumbo_buf = %p\n", sc->bge_cdata.bge_jumbo_buf)); 728 729 SLIST_INIT(&sc->bge_jfree_listhead); 730 SLIST_INIT(&sc->bge_jinuse_listhead); 731 732 /* 733 * Now divide it up into 9K pieces and save the addresses 734 * in an array. 735 */ 736 ptr = sc->bge_cdata.bge_jumbo_buf; 737 for (i = 0; i < BGE_JSLOTS; i++) { 738 sc->bge_cdata.bge_jslots[i] = ptr; 739 ptr += BGE_JLEN; 740 entry = malloc(sizeof(struct bge_jpool_entry), 741 M_DEVBUF, M_NOWAIT); 742 if (entry == NULL) { 743 printf("%s: no memory for jumbo buffer queue!\n", 744 sc->bge_dev.dv_xname); 745 error = ENOBUFS; 746 goto out; 747 } 748 entry->slot = i; 749 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, 750 entry, jpool_entries); 751 } 752 out: 753 if (error != 0) { 754 switch (state) { 755 case 4: 756 bus_dmamap_unload(sc->bge_dmatag, 757 sc->bge_cdata.bge_rx_jumbo_map); 758 case 3: 759 bus_dmamap_destroy(sc->bge_dmatag, 760 sc->bge_cdata.bge_rx_jumbo_map); 761 case 2: 762 bus_dmamem_unmap(sc->bge_dmatag, kva, BGE_JMEM); 763 case 1: 764 bus_dmamem_free(sc->bge_dmatag, &seg, rseg); 765 break; 766 default: 767 break; 768 } 769 } 770 771 return error; 772 } 773 774 /* 775 * Allocate a jumbo buffer. 776 */ 777 static void * 778 bge_jalloc(struct bge_softc *sc) 779 { 780 struct bge_jpool_entry *entry; 781 782 entry = SLIST_FIRST(&sc->bge_jfree_listhead); 783 784 if (entry == NULL) { 785 printf("%s: no free jumbo buffers\n", sc->bge_dev.dv_xname); 786 return(NULL); 787 } 788 789 SLIST_REMOVE_HEAD(&sc->bge_jfree_listhead, jpool_entries); 790 SLIST_INSERT_HEAD(&sc->bge_jinuse_listhead, entry, jpool_entries); 791 return(sc->bge_cdata.bge_jslots[entry->slot]); 792 } 793 794 /* 795 * Release a jumbo buffer. 796 */ 797 static void 798 bge_jfree(struct mbuf *m, void *buf, size_t size, void *arg) 799 { 800 struct bge_jpool_entry *entry; 801 struct bge_softc *sc; 802 int i, s; 803 804 /* Extract the softc struct pointer. */ 805 sc = (struct bge_softc *)arg; 806 807 if (sc == NULL) 808 panic("bge_jfree: can't find softc pointer!"); 809 810 /* calculate the slot this buffer belongs to */ 811 812 i = ((char *)buf 813 - (char *)sc->bge_cdata.bge_jumbo_buf) / BGE_JLEN; 814 815 if ((i < 0) || (i >= BGE_JSLOTS)) 816 panic("bge_jfree: asked to free buffer that we don't manage!"); 817 818 s = splvm(); 819 entry = SLIST_FIRST(&sc->bge_jinuse_listhead); 820 if (entry == NULL) 821 panic("bge_jfree: buffer not in use!"); 822 entry->slot = i; 823 SLIST_REMOVE_HEAD(&sc->bge_jinuse_listhead, jpool_entries); 824 SLIST_INSERT_HEAD(&sc->bge_jfree_listhead, entry, jpool_entries); 825 826 if (__predict_true(m != NULL)) 827 pool_cache_put(&mbpool_cache, m); 828 splx(s); 829 } 830 831 832 /* 833 * Intialize a standard receive ring descriptor. 834 */ 835 static int 836 bge_newbuf_std(struct bge_softc *sc, int i, struct mbuf *m, bus_dmamap_t dmamap) 837 { 838 struct mbuf *m_new = NULL; 839 struct bge_rx_bd *r; 840 int error; 841 842 if (dmamap == NULL) { 843 error = bus_dmamap_create(sc->bge_dmatag, MCLBYTES, 1, 844 MCLBYTES, 0, BUS_DMA_NOWAIT, &dmamap); 845 if (error != 0) 846 return error; 847 } 848 849 sc->bge_cdata.bge_rx_std_map[i] = dmamap; 850 851 if (m == NULL) { 852 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 853 if (m_new == NULL) { 854 return(ENOBUFS); 855 } 856 857 MCLGET(m_new, M_DONTWAIT); 858 if (!(m_new->m_flags & M_EXT)) { 859 m_freem(m_new); 860 return(ENOBUFS); 861 } 862 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 863 864 } else { 865 m_new = m; 866 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 867 m_new->m_data = m_new->m_ext.ext_buf; 868 } 869 if (!sc->bge_rx_alignment_bug) 870 m_adj(m_new, ETHER_ALIGN); 871 if (bus_dmamap_load_mbuf(sc->bge_dmatag, dmamap, m_new, 872 BUS_DMA_READ|BUS_DMA_NOWAIT)) 873 return(ENOBUFS); 874 bus_dmamap_sync(sc->bge_dmatag, dmamap, 0, dmamap->dm_mapsize, 875 BUS_DMASYNC_PREREAD); 876 877 sc->bge_cdata.bge_rx_std_chain[i] = m_new; 878 r = &sc->bge_rdata->bge_rx_std_ring[i]; 879 bge_set_hostaddr(&r->bge_addr, 880 dmamap->dm_segs[0].ds_addr); 881 r->bge_flags = BGE_RXBDFLAG_END; 882 r->bge_len = m_new->m_len; 883 r->bge_idx = i; 884 885 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 886 offsetof(struct bge_ring_data, bge_rx_std_ring) + 887 i * sizeof (struct bge_rx_bd), 888 sizeof (struct bge_rx_bd), 889 BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); 890 891 return(0); 892 } 893 894 /* 895 * Initialize a jumbo receive ring descriptor. This allocates 896 * a jumbo buffer from the pool managed internally by the driver. 897 */ 898 static int 899 bge_newbuf_jumbo(struct bge_softc *sc, int i, struct mbuf *m) 900 { 901 struct mbuf *m_new = NULL; 902 struct bge_rx_bd *r; 903 void *buf = NULL; 904 905 if (m == NULL) { 906 907 /* Allocate the mbuf. */ 908 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 909 if (m_new == NULL) { 910 return(ENOBUFS); 911 } 912 913 /* Allocate the jumbo buffer */ 914 buf = bge_jalloc(sc); 915 if (buf == NULL) { 916 m_freem(m_new); 917 printf("%s: jumbo allocation failed " 918 "-- packet dropped!\n", sc->bge_dev.dv_xname); 919 return(ENOBUFS); 920 } 921 922 /* Attach the buffer to the mbuf. */ 923 m_new->m_len = m_new->m_pkthdr.len = BGE_JUMBO_FRAMELEN; 924 MEXTADD(m_new, buf, BGE_JUMBO_FRAMELEN, M_DEVBUF, 925 bge_jfree, sc); 926 m_new->m_flags |= M_EXT_RW; 927 } else { 928 m_new = m; 929 buf = m_new->m_data = m_new->m_ext.ext_buf; 930 m_new->m_ext.ext_size = BGE_JUMBO_FRAMELEN; 931 } 932 if (!sc->bge_rx_alignment_bug) 933 m_adj(m_new, ETHER_ALIGN); 934 bus_dmamap_sync(sc->bge_dmatag, sc->bge_cdata.bge_rx_jumbo_map, 935 mtod(m_new, char *) - (char *)sc->bge_cdata.bge_jumbo_buf, BGE_JLEN, 936 BUS_DMASYNC_PREREAD); 937 /* Set up the descriptor. */ 938 r = &sc->bge_rdata->bge_rx_jumbo_ring[i]; 939 sc->bge_cdata.bge_rx_jumbo_chain[i] = m_new; 940 bge_set_hostaddr(&r->bge_addr, BGE_JUMBO_DMA_ADDR(sc, m_new)); 941 r->bge_flags = BGE_RXBDFLAG_END|BGE_RXBDFLAG_JUMBO_RING; 942 r->bge_len = m_new->m_len; 943 r->bge_idx = i; 944 945 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 946 offsetof(struct bge_ring_data, bge_rx_jumbo_ring) + 947 i * sizeof (struct bge_rx_bd), 948 sizeof (struct bge_rx_bd), 949 BUS_DMASYNC_PREWRITE|BUS_DMASYNC_PREREAD); 950 951 return(0); 952 } 953 954 /* 955 * The standard receive ring has 512 entries in it. At 2K per mbuf cluster, 956 * that's 1MB or memory, which is a lot. For now, we fill only the first 957 * 256 ring entries and hope that our CPU is fast enough to keep up with 958 * the NIC. 959 */ 960 static int 961 bge_init_rx_ring_std(struct bge_softc *sc) 962 { 963 int i; 964 965 if (sc->bge_flags & BGE_RXRING_VALID) 966 return 0; 967 968 for (i = 0; i < BGE_SSLOTS; i++) { 969 if (bge_newbuf_std(sc, i, NULL, 0) == ENOBUFS) 970 return(ENOBUFS); 971 } 972 973 sc->bge_std = i - 1; 974 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); 975 976 sc->bge_flags |= BGE_RXRING_VALID; 977 978 return(0); 979 } 980 981 static void 982 bge_free_rx_ring_std(struct bge_softc *sc) 983 { 984 int i; 985 986 if (!(sc->bge_flags & BGE_RXRING_VALID)) 987 return; 988 989 for (i = 0; i < BGE_STD_RX_RING_CNT; i++) { 990 if (sc->bge_cdata.bge_rx_std_chain[i] != NULL) { 991 m_freem(sc->bge_cdata.bge_rx_std_chain[i]); 992 sc->bge_cdata.bge_rx_std_chain[i] = NULL; 993 bus_dmamap_destroy(sc->bge_dmatag, 994 sc->bge_cdata.bge_rx_std_map[i]); 995 } 996 memset((char *)&sc->bge_rdata->bge_rx_std_ring[i], 0, 997 sizeof(struct bge_rx_bd)); 998 } 999 1000 sc->bge_flags &= ~BGE_RXRING_VALID; 1001 } 1002 1003 static int 1004 bge_init_rx_ring_jumbo(struct bge_softc *sc) 1005 { 1006 int i; 1007 volatile struct bge_rcb *rcb; 1008 1009 if (sc->bge_flags & BGE_JUMBO_RXRING_VALID) 1010 return 0; 1011 1012 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 1013 if (bge_newbuf_jumbo(sc, i, NULL) == ENOBUFS) 1014 return(ENOBUFS); 1015 }; 1016 1017 sc->bge_jumbo = i - 1; 1018 sc->bge_flags |= BGE_JUMBO_RXRING_VALID; 1019 1020 rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb; 1021 rcb->bge_maxlen_flags = 0; 1022 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); 1023 1024 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); 1025 1026 return(0); 1027 } 1028 1029 static void 1030 bge_free_rx_ring_jumbo(struct bge_softc *sc) 1031 { 1032 int i; 1033 1034 if (!(sc->bge_flags & BGE_JUMBO_RXRING_VALID)) 1035 return; 1036 1037 for (i = 0; i < BGE_JUMBO_RX_RING_CNT; i++) { 1038 if (sc->bge_cdata.bge_rx_jumbo_chain[i] != NULL) { 1039 m_freem(sc->bge_cdata.bge_rx_jumbo_chain[i]); 1040 sc->bge_cdata.bge_rx_jumbo_chain[i] = NULL; 1041 } 1042 memset((char *)&sc->bge_rdata->bge_rx_jumbo_ring[i], 0, 1043 sizeof(struct bge_rx_bd)); 1044 } 1045 1046 sc->bge_flags &= ~BGE_JUMBO_RXRING_VALID; 1047 } 1048 1049 static void 1050 bge_free_tx_ring(struct bge_softc *sc) 1051 { 1052 int i, freed; 1053 struct txdmamap_pool_entry *dma; 1054 1055 if (!(sc->bge_flags & BGE_TXRING_VALID)) 1056 return; 1057 1058 freed = 0; 1059 1060 for (i = 0; i < BGE_TX_RING_CNT; i++) { 1061 if (sc->bge_cdata.bge_tx_chain[i] != NULL) { 1062 freed++; 1063 m_freem(sc->bge_cdata.bge_tx_chain[i]); 1064 sc->bge_cdata.bge_tx_chain[i] = NULL; 1065 SLIST_INSERT_HEAD(&sc->txdma_list, sc->txdma[i], 1066 link); 1067 sc->txdma[i] = 0; 1068 } 1069 memset((char *)&sc->bge_rdata->bge_tx_ring[i], 0, 1070 sizeof(struct bge_tx_bd)); 1071 } 1072 1073 while ((dma = SLIST_FIRST(&sc->txdma_list))) { 1074 SLIST_REMOVE_HEAD(&sc->txdma_list, link); 1075 bus_dmamap_destroy(sc->bge_dmatag, dma->dmamap); 1076 free(dma, M_DEVBUF); 1077 } 1078 1079 sc->bge_flags &= ~BGE_TXRING_VALID; 1080 } 1081 1082 static int 1083 bge_init_tx_ring(struct bge_softc *sc) 1084 { 1085 int i; 1086 bus_dmamap_t dmamap; 1087 struct txdmamap_pool_entry *dma; 1088 1089 if (sc->bge_flags & BGE_TXRING_VALID) 1090 return 0; 1091 1092 sc->bge_txcnt = 0; 1093 sc->bge_tx_saved_considx = 0; 1094 1095 /* Initialize transmit producer index for host-memory send ring. */ 1096 sc->bge_tx_prodidx = 0; 1097 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx); 1098 if (sc->bge_quirks & BGE_QUIRK_PRODUCER_BUG) /* 5700 b2 errata */ 1099 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, sc->bge_tx_prodidx); 1100 1101 /* NIC-memory send ring not used; initialize to zero. */ 1102 CSR_WRITE_4(sc, BGE_MBX_TX_NIC_PROD0_LO, 0); 1103 if (sc->bge_quirks & BGE_QUIRK_PRODUCER_BUG) /* 5700 b2 errata */ 1104 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, 0); 1105 1106 SLIST_INIT(&sc->txdma_list); 1107 for (i = 0; i < BGE_RSLOTS; i++) { 1108 if (bus_dmamap_create(sc->bge_dmatag, BGE_TXDMA_MAX, 1109 BGE_NTXSEG, ETHER_MAX_LEN_JUMBO, 0, BUS_DMA_NOWAIT, 1110 &dmamap)) 1111 return(ENOBUFS); 1112 if (dmamap == NULL) 1113 panic("dmamap NULL in bge_init_tx_ring"); 1114 dma = malloc(sizeof(*dma), M_DEVBUF, M_NOWAIT); 1115 if (dma == NULL) { 1116 printf("%s: can't alloc txdmamap_pool_entry\n", 1117 sc->bge_dev.dv_xname); 1118 bus_dmamap_destroy(sc->bge_dmatag, dmamap); 1119 return (ENOMEM); 1120 } 1121 dma->dmamap = dmamap; 1122 SLIST_INSERT_HEAD(&sc->txdma_list, dma, link); 1123 } 1124 1125 sc->bge_flags |= BGE_TXRING_VALID; 1126 1127 return(0); 1128 } 1129 1130 static void 1131 bge_setmulti(struct bge_softc *sc) 1132 { 1133 struct ethercom *ac = &sc->ethercom; 1134 struct ifnet *ifp = &ac->ec_if; 1135 struct ether_multi *enm; 1136 struct ether_multistep step; 1137 u_int32_t hashes[4] = { 0, 0, 0, 0 }; 1138 u_int32_t h; 1139 int i; 1140 1141 if (ifp->if_flags & IFF_PROMISC) 1142 goto allmulti; 1143 1144 /* Now program new ones. */ 1145 ETHER_FIRST_MULTI(step, ac, enm); 1146 while (enm != NULL) { 1147 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 1148 /* 1149 * We must listen to a range of multicast addresses. 1150 * For now, just accept all multicasts, rather than 1151 * trying to set only those filter bits needed to match 1152 * the range. (At this time, the only use of address 1153 * ranges is for IP multicast routing, for which the 1154 * range is big enough to require all bits set.) 1155 */ 1156 goto allmulti; 1157 } 1158 1159 h = ether_crc32_le(enm->enm_addrlo, ETHER_ADDR_LEN); 1160 1161 /* Just want the 7 least-significant bits. */ 1162 h &= 0x7f; 1163 1164 hashes[(h & 0x60) >> 5] |= 1 << (h & 0x1F); 1165 ETHER_NEXT_MULTI(step, enm); 1166 } 1167 1168 ifp->if_flags &= ~IFF_ALLMULTI; 1169 goto setit; 1170 1171 allmulti: 1172 ifp->if_flags |= IFF_ALLMULTI; 1173 hashes[0] = hashes[1] = hashes[2] = hashes[3] = 0xffffffff; 1174 1175 setit: 1176 for (i = 0; i < 4; i++) 1177 CSR_WRITE_4(sc, BGE_MAR0 + (i * 4), hashes[i]); 1178 } 1179 1180 const int bge_swapbits[] = { 1181 0, 1182 BGE_MODECTL_BYTESWAP_DATA, 1183 BGE_MODECTL_WORDSWAP_DATA, 1184 BGE_MODECTL_BYTESWAP_NONFRAME, 1185 BGE_MODECTL_WORDSWAP_NONFRAME, 1186 1187 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA, 1188 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME, 1189 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_NONFRAME, 1190 1191 BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME, 1192 BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_WORDSWAP_NONFRAME, 1193 1194 BGE_MODECTL_BYTESWAP_NONFRAME|BGE_MODECTL_WORDSWAP_NONFRAME, 1195 1196 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| 1197 BGE_MODECTL_BYTESWAP_NONFRAME, 1198 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| 1199 BGE_MODECTL_WORDSWAP_NONFRAME, 1200 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME| 1201 BGE_MODECTL_WORDSWAP_NONFRAME, 1202 BGE_MODECTL_WORDSWAP_DATA|BGE_MODECTL_BYTESWAP_NONFRAME| 1203 BGE_MODECTL_WORDSWAP_NONFRAME, 1204 1205 BGE_MODECTL_BYTESWAP_DATA|BGE_MODECTL_WORDSWAP_DATA| 1206 BGE_MODECTL_BYTESWAP_NONFRAME|BGE_MODECTL_WORDSWAP_NONFRAME, 1207 }; 1208 1209 int bge_swapindex = 0; 1210 1211 /* 1212 * Do endian, PCI and DMA initialization. Also check the on-board ROM 1213 * self-test results. 1214 */ 1215 static int 1216 bge_chipinit(struct bge_softc *sc) 1217 { 1218 u_int32_t cachesize; 1219 int i; 1220 u_int32_t dma_rw_ctl; 1221 struct pci_attach_args *pa = &(sc->bge_pa); 1222 1223 1224 /* Set endianness before we access any non-PCI registers. */ 1225 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, 1226 BGE_INIT); 1227 1228 /* Set power state to D0. */ 1229 bge_setpowerstate(sc, 0); 1230 1231 /* 1232 * Check the 'ROM failed' bit on the RX CPU to see if 1233 * self-tests passed. 1234 */ 1235 if (CSR_READ_4(sc, BGE_RXCPU_MODE) & BGE_RXCPUMODE_ROMFAIL) { 1236 printf("%s: RX CPU self-diagnostics failed!\n", 1237 sc->bge_dev.dv_xname); 1238 return(ENODEV); 1239 } 1240 1241 /* Clear the MAC control register */ 1242 CSR_WRITE_4(sc, BGE_MAC_MODE, 0); 1243 1244 /* 1245 * Clear the MAC statistics block in the NIC's 1246 * internal memory. 1247 */ 1248 for (i = BGE_STATS_BLOCK; 1249 i < BGE_STATS_BLOCK_END + 1; i += sizeof(u_int32_t)) 1250 BGE_MEMWIN_WRITE(pa->pa_pc, pa->pa_tag, i, 0); 1251 1252 for (i = BGE_STATUS_BLOCK; 1253 i < BGE_STATUS_BLOCK_END + 1; i += sizeof(u_int32_t)) 1254 BGE_MEMWIN_WRITE(pa->pa_pc, pa->pa_tag, i, 0); 1255 1256 /* Set up the PCI DMA control register. */ 1257 if (sc->bge_pcie) { 1258 u_int32_t device_ctl; 1259 1260 /* From FreeBSD */ 1261 DPRINTFN(4, ("(%s: PCI-Express DMA setting)\n", 1262 sc->bge_dev.dv_xname)); 1263 dma_rw_ctl = (BGE_PCI_READ_CMD | BGE_PCI_WRITE_CMD | 1264 (0xf << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | 1265 (0x2 << BGE_PCIDMARWCTL_WR_WAT_SHIFT)); 1266 1267 /* jonathan: alternative from Linux driver */ 1268 #define DMA_CTRL_WRITE_PCIE_H20MARK_128 0x00180000 1269 #define DMA_CTRL_WRITE_PCIE_H20MARK_256 0x00380000 1270 1271 dma_rw_ctl = 0x76000000; /* XXX XXX XXX */; 1272 device_ctl = pci_conf_read(pa->pa_pc, pa->pa_tag, 1273 BGE_PCI_CONF_DEV_CTRL); 1274 aprint_debug("%s: pcie mode=0x%x\n", sc->bge_dev.dv_xname, 1275 device_ctl); 1276 1277 if ((device_ctl & 0x00e0) && 0) { 1278 /* 1279 * XXX jonathan (at) NetBSD.org: 1280 * This clause is exactly what the Broadcom-supplied 1281 * Linux does; but given overall register programming 1282 * by if_bge(4), this larger DMA-write watermark 1283 * value causes bcm5721 chips to totally wedge. 1284 */ 1285 dma_rw_ctl |= BGE_PCIDMA_RWCTL_PCIE_WRITE_WATRMARK_256; 1286 } else { 1287 dma_rw_ctl |= BGE_PCIDMA_RWCTL_PCIE_WRITE_WATRMARK_128; 1288 } 1289 } else if (pci_conf_read(pa->pa_pc, pa->pa_tag,BGE_PCI_PCISTATE) & 1290 BGE_PCISTATE_PCI_BUSMODE) { 1291 /* Conventional PCI bus */ 1292 DPRINTFN(4, ("(%s: PCI 2.2 DMA setting)\n", sc->bge_dev.dv_xname)); 1293 dma_rw_ctl = (BGE_PCI_READ_CMD | BGE_PCI_WRITE_CMD | 1294 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | 1295 (0x7 << BGE_PCIDMARWCTL_WR_WAT_SHIFT)); 1296 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1297 dma_rw_ctl |= 0x0F; 1298 } 1299 } else { 1300 DPRINTFN(4, ("(:%s: PCI-X DMA setting)\n", sc->bge_dev.dv_xname)); 1301 /* PCI-X bus */ 1302 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | 1303 (0x3 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | 1304 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT) | 1305 (0x0F); 1306 /* 1307 * 5703 and 5704 need ONEDMA_AT_ONCE as a workaround 1308 * for hardware bugs, which means we should also clear 1309 * the low-order MINDMA bits. In addition, the 5704 1310 * uses a different encoding of read/write watermarks. 1311 */ 1312 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5704) { 1313 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD | 1314 /* should be 0x1f0000 */ 1315 (0x7 << BGE_PCIDMARWCTL_RD_WAT_SHIFT) | 1316 (0x3 << BGE_PCIDMARWCTL_WR_WAT_SHIFT); 1317 dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE; 1318 } 1319 else if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5703) { 1320 dma_rw_ctl &= 0xfffffff0; 1321 dma_rw_ctl |= BGE_PCIDMARWCTL_ONEDMA_ATONCE; 1322 } 1323 else if (BGE_IS_5714_FAMILY(sc)) { 1324 dma_rw_ctl = BGE_PCI_READ_CMD|BGE_PCI_WRITE_CMD; 1325 dma_rw_ctl &= ~BGE_PCIDMARWCTL_ONEDMA_ATONCE; /* XXX */ 1326 /* XXX magic values, Broadcom-supplied Linux driver */ 1327 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5780) 1328 dma_rw_ctl |= (1 << 20) | (1 << 18) | 1329 BGE_PCIDMARWCTL_ONEDMA_ATONCE; 1330 else 1331 dma_rw_ctl |= (1<<20) | (1<<18) | (1 << 15); 1332 } 1333 } 1334 1335 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, dma_rw_ctl); 1336 1337 /* 1338 * Set up general mode register. 1339 */ 1340 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS| 1341 BGE_MODECTL_MAC_ATTN_INTR|BGE_MODECTL_HOST_SEND_BDS| 1342 BGE_MODECTL_TX_NO_PHDR_CSUM|BGE_MODECTL_RX_NO_PHDR_CSUM); 1343 1344 /* Get cache line size. */ 1345 cachesize = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ); 1346 1347 /* 1348 * Avoid violating PCI spec on certain chip revs. 1349 */ 1350 if (pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD) & 1351 PCIM_CMD_MWIEN) { 1352 switch(cachesize) { 1353 case 1: 1354 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1355 BGE_PCI_WRITE_BNDRY_16BYTES); 1356 break; 1357 case 2: 1358 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1359 BGE_PCI_WRITE_BNDRY_32BYTES); 1360 break; 1361 case 4: 1362 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1363 BGE_PCI_WRITE_BNDRY_64BYTES); 1364 break; 1365 case 8: 1366 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1367 BGE_PCI_WRITE_BNDRY_128BYTES); 1368 break; 1369 case 16: 1370 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1371 BGE_PCI_WRITE_BNDRY_256BYTES); 1372 break; 1373 case 32: 1374 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1375 BGE_PCI_WRITE_BNDRY_512BYTES); 1376 break; 1377 case 64: 1378 PCI_SETBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_DMA_RW_CTL, 1379 BGE_PCI_WRITE_BNDRY_1024BYTES); 1380 break; 1381 default: 1382 /* Disable PCI memory write and invalidate. */ 1383 #if 0 1384 if (bootverbose) 1385 printf("%s: cache line size %d not " 1386 "supported; disabling PCI MWI\n", 1387 sc->bge_dev.dv_xname, cachesize); 1388 #endif 1389 PCI_CLRBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD, 1390 PCIM_CMD_MWIEN); 1391 break; 1392 } 1393 } 1394 1395 /* 1396 * Disable memory write invalidate. Apparently it is not supported 1397 * properly by these devices. 1398 */ 1399 PCI_CLRBIT(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD, PCIM_CMD_MWIEN); 1400 1401 1402 #ifdef __brokenalpha__ 1403 /* 1404 * Must insure that we do not cross an 8K (bytes) boundary 1405 * for DMA reads. Our highest limit is 1K bytes. This is a 1406 * restriction on some ALPHA platforms with early revision 1407 * 21174 PCI chipsets, such as the AlphaPC 164lx 1408 */ 1409 PCI_SETBIT(sc, BGE_PCI_DMA_RW_CTL, BGE_PCI_READ_BNDRY_1024, 4); 1410 #endif 1411 1412 /* Set the timer prescaler (always 66MHz) */ 1413 CSR_WRITE_4(sc, BGE_MISC_CFG, 65 << 1/*BGE_32BITTIME_66MHZ*/); 1414 1415 return(0); 1416 } 1417 1418 static int 1419 bge_blockinit(struct bge_softc *sc) 1420 { 1421 volatile struct bge_rcb *rcb; 1422 bus_size_t rcb_addr; 1423 int i; 1424 struct ifnet *ifp = &sc->ethercom.ec_if; 1425 bge_hostaddr taddr; 1426 1427 /* 1428 * Initialize the memory window pointer register so that 1429 * we can access the first 32K of internal NIC RAM. This will 1430 * allow us to set up the TX send ring RCBs and the RX return 1431 * ring RCBs, plus other things which live in NIC memory. 1432 */ 1433 1434 pci_conf_write(sc->bge_pa.pa_pc, sc->bge_pa.pa_tag, 1435 BGE_PCI_MEMWIN_BASEADDR, 0); 1436 1437 /* Configure mbuf memory pool */ 1438 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1439 if (sc->bge_extram) { 1440 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, 1441 BGE_EXT_SSRAM); 1442 if ((sc->bge_quirks & BGE_QUIRK_FEWER_MBUFS) != 0) 1443 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000); 1444 else 1445 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); 1446 } else { 1447 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_BASEADDR, 1448 BGE_BUFFPOOL_1); 1449 if ((sc->bge_quirks & BGE_QUIRK_FEWER_MBUFS) != 0) 1450 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x10000); 1451 else 1452 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_LEN, 0x18000); 1453 } 1454 1455 /* Configure DMA resource pool */ 1456 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_BASEADDR, 1457 BGE_DMA_DESCRIPTORS); 1458 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LEN, 0x2000); 1459 } 1460 1461 /* Configure mbuf pool watermarks */ 1462 #ifdef ORIG_WPAUL_VALUES 1463 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 24); 1464 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 24); 1465 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 48); 1466 #else 1467 /* new broadcom docs strongly recommend these: */ 1468 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1469 if (ifp->if_mtu > ETHER_MAX_LEN) { 1470 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x50); 1471 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x20); 1472 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60); 1473 } else { 1474 /* Values from Linux driver... */ 1475 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 304); 1476 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 152); 1477 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 380); 1478 } 1479 } else { 1480 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_READDMA_LOWAT, 0x0); 1481 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_MACRX_LOWAT, 0x10); 1482 CSR_WRITE_4(sc, BGE_BMAN_MBUFPOOL_HIWAT, 0x60); 1483 } 1484 #endif 1485 1486 /* Configure DMA resource watermarks */ 1487 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_LOWAT, 5); 1488 CSR_WRITE_4(sc, BGE_BMAN_DMA_DESCPOOL_HIWAT, 10); 1489 1490 /* Enable buffer manager */ 1491 CSR_WRITE_4(sc, BGE_BMAN_MODE, 1492 BGE_BMANMODE_ENABLE|BGE_BMANMODE_LOMBUF_ATTN); 1493 1494 /* Poll for buffer manager start indication */ 1495 for (i = 0; i < BGE_TIMEOUT; i++) { 1496 if (CSR_READ_4(sc, BGE_BMAN_MODE) & BGE_BMANMODE_ENABLE) 1497 break; 1498 DELAY(10); 1499 } 1500 1501 if (i == BGE_TIMEOUT) { 1502 printf("%s: buffer manager failed to start\n", 1503 sc->bge_dev.dv_xname); 1504 return(ENXIO); 1505 } 1506 1507 /* Enable flow-through queues */ 1508 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); 1509 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); 1510 1511 /* Wait until queue initialization is complete */ 1512 for (i = 0; i < BGE_TIMEOUT; i++) { 1513 if (CSR_READ_4(sc, BGE_FTQ_RESET) == 0) 1514 break; 1515 DELAY(10); 1516 } 1517 1518 if (i == BGE_TIMEOUT) { 1519 printf("%s: flow-through queue init failed\n", 1520 sc->bge_dev.dv_xname); 1521 return(ENXIO); 1522 } 1523 1524 /* Initialize the standard RX ring control block */ 1525 rcb = &sc->bge_rdata->bge_info.bge_std_rx_rcb; 1526 bge_set_hostaddr(&rcb->bge_hostaddr, 1527 BGE_RING_DMA_ADDR(sc, bge_rx_std_ring)); 1528 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1529 rcb->bge_maxlen_flags = 1530 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 0); 1531 } else { 1532 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(512, 0); 1533 } 1534 if (sc->bge_extram) 1535 rcb->bge_nicaddr = BGE_EXT_STD_RX_RINGS; 1536 else 1537 rcb->bge_nicaddr = BGE_STD_RX_RINGS; 1538 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_HI, rcb->bge_hostaddr.bge_addr_hi); 1539 CSR_WRITE_4(sc, BGE_RX_STD_RCB_HADDR_LO, rcb->bge_hostaddr.bge_addr_lo); 1540 CSR_WRITE_4(sc, BGE_RX_STD_RCB_MAXLEN_FLAGS, rcb->bge_maxlen_flags); 1541 CSR_WRITE_4(sc, BGE_RX_STD_RCB_NICADDR, rcb->bge_nicaddr); 1542 1543 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1544 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT; 1545 } else { 1546 sc->bge_return_ring_cnt = BGE_RETURN_RING_CNT_5705; 1547 } 1548 1549 /* 1550 * Initialize the jumbo RX ring control block 1551 * We set the 'ring disabled' bit in the flags 1552 * field until we're actually ready to start 1553 * using this ring (i.e. once we set the MTU 1554 * high enough to require it). 1555 */ 1556 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1557 rcb = &sc->bge_rdata->bge_info.bge_jumbo_rx_rcb; 1558 bge_set_hostaddr(&rcb->bge_hostaddr, 1559 BGE_RING_DMA_ADDR(sc, bge_rx_jumbo_ring)); 1560 rcb->bge_maxlen_flags = 1561 BGE_RCB_MAXLEN_FLAGS(BGE_MAX_FRAMELEN, 1562 BGE_RCB_FLAG_RING_DISABLED); 1563 if (sc->bge_extram) 1564 rcb->bge_nicaddr = BGE_EXT_JUMBO_RX_RINGS; 1565 else 1566 rcb->bge_nicaddr = BGE_JUMBO_RX_RINGS; 1567 1568 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_HI, 1569 rcb->bge_hostaddr.bge_addr_hi); 1570 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_HADDR_LO, 1571 rcb->bge_hostaddr.bge_addr_lo); 1572 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_MAXLEN_FLAGS, 1573 rcb->bge_maxlen_flags); 1574 CSR_WRITE_4(sc, BGE_RX_JUMBO_RCB_NICADDR, rcb->bge_nicaddr); 1575 1576 /* Set up dummy disabled mini ring RCB */ 1577 rcb = &sc->bge_rdata->bge_info.bge_mini_rx_rcb; 1578 rcb->bge_maxlen_flags = BGE_RCB_MAXLEN_FLAGS(0, 1579 BGE_RCB_FLAG_RING_DISABLED); 1580 CSR_WRITE_4(sc, BGE_RX_MINI_RCB_MAXLEN_FLAGS, 1581 rcb->bge_maxlen_flags); 1582 1583 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 1584 offsetof(struct bge_ring_data, bge_info), 1585 sizeof (struct bge_gib), 1586 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE); 1587 } 1588 1589 /* 1590 * Set the BD ring replentish thresholds. The recommended 1591 * values are 1/8th the number of descriptors allocated to 1592 * each ring. 1593 */ 1594 CSR_WRITE_4(sc, BGE_RBDI_STD_REPL_THRESH, BGE_STD_RX_RING_CNT/8); 1595 CSR_WRITE_4(sc, BGE_RBDI_JUMBO_REPL_THRESH, BGE_JUMBO_RX_RING_CNT/8); 1596 1597 /* 1598 * Disable all unused send rings by setting the 'ring disabled' 1599 * bit in the flags field of all the TX send ring control blocks. 1600 * These are located in NIC memory. 1601 */ 1602 rcb_addr = BGE_MEMWIN_START + BGE_SEND_RING_RCB; 1603 for (i = 0; i < BGE_TX_RINGS_EXTSSRAM_MAX; i++) { 1604 RCB_WRITE_4(sc, rcb_addr, bge_maxlen_flags, 1605 BGE_RCB_MAXLEN_FLAGS(0,BGE_RCB_FLAG_RING_DISABLED)); 1606 RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0); 1607 rcb_addr += sizeof(struct bge_rcb); 1608 } 1609 1610 /* Configure TX RCB 0 (we use only the first ring) */ 1611 rcb_addr = BGE_MEMWIN_START + BGE_SEND_RING_RCB; 1612 bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_tx_ring)); 1613 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); 1614 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); 1615 RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 1616 BGE_NIC_TXRING_ADDR(0, BGE_TX_RING_CNT)); 1617 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1618 RCB_WRITE_4(sc, rcb_addr, bge_maxlen_flags, 1619 BGE_RCB_MAXLEN_FLAGS(BGE_TX_RING_CNT, 0)); 1620 } 1621 1622 /* Disable all unused RX return rings */ 1623 rcb_addr = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; 1624 for (i = 0; i < BGE_RX_RINGS_MAX; i++) { 1625 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, 0); 1626 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, 0); 1627 RCB_WRITE_4(sc, rcb_addr, bge_maxlen_flags, 1628 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 1629 BGE_RCB_FLAG_RING_DISABLED)); 1630 RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0); 1631 CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO + 1632 (i * (sizeof(u_int64_t))), 0); 1633 rcb_addr += sizeof(struct bge_rcb); 1634 } 1635 1636 /* Initialize RX ring indexes */ 1637 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, 0); 1638 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, 0); 1639 CSR_WRITE_4(sc, BGE_MBX_RX_MINI_PROD_LO, 0); 1640 1641 /* 1642 * Set up RX return ring 0 1643 * Note that the NIC address for RX return rings is 0x00000000. 1644 * The return rings live entirely within the host, so the 1645 * nicaddr field in the RCB isn't used. 1646 */ 1647 rcb_addr = BGE_MEMWIN_START + BGE_RX_RETURN_RING_RCB; 1648 bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_rx_return_ring)); 1649 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_hi, taddr.bge_addr_hi); 1650 RCB_WRITE_4(sc, rcb_addr, bge_hostaddr.bge_addr_lo, taddr.bge_addr_lo); 1651 RCB_WRITE_4(sc, rcb_addr, bge_nicaddr, 0x00000000); 1652 RCB_WRITE_4(sc, rcb_addr, bge_maxlen_flags, 1653 BGE_RCB_MAXLEN_FLAGS(sc->bge_return_ring_cnt, 0)); 1654 1655 /* Set random backoff seed for TX */ 1656 CSR_WRITE_4(sc, BGE_TX_RANDOM_BACKOFF, 1657 LLADDR(ifp->if_sadl)[0] + LLADDR(ifp->if_sadl)[1] + 1658 LLADDR(ifp->if_sadl)[2] + LLADDR(ifp->if_sadl)[3] + 1659 LLADDR(ifp->if_sadl)[4] + LLADDR(ifp->if_sadl)[5] + 1660 BGE_TX_BACKOFF_SEED_MASK); 1661 1662 /* Set inter-packet gap */ 1663 CSR_WRITE_4(sc, BGE_TX_LENGTHS, 0x2620); 1664 1665 /* 1666 * Specify which ring to use for packets that don't match 1667 * any RX rules. 1668 */ 1669 CSR_WRITE_4(sc, BGE_RX_RULES_CFG, 0x08); 1670 1671 /* 1672 * Configure number of RX lists. One interrupt distribution 1673 * list, sixteen active lists, one bad frames class. 1674 */ 1675 CSR_WRITE_4(sc, BGE_RXLP_CFG, 0x181); 1676 1677 /* Inialize RX list placement stats mask. */ 1678 CSR_WRITE_4(sc, BGE_RXLP_STATS_ENABLE_MASK, 0x007FFFFF); 1679 CSR_WRITE_4(sc, BGE_RXLP_STATS_CTL, 0x1); 1680 1681 /* Disable host coalescing until we get it set up */ 1682 CSR_WRITE_4(sc, BGE_HCC_MODE, 0x00000000); 1683 1684 /* Poll to make sure it's shut down. */ 1685 for (i = 0; i < BGE_TIMEOUT; i++) { 1686 if (!(CSR_READ_4(sc, BGE_HCC_MODE) & BGE_HCCMODE_ENABLE)) 1687 break; 1688 DELAY(10); 1689 } 1690 1691 if (i == BGE_TIMEOUT) { 1692 printf("%s: host coalescing engine failed to idle\n", 1693 sc->bge_dev.dv_xname); 1694 return(ENXIO); 1695 } 1696 1697 /* Set up host coalescing defaults */ 1698 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, sc->bge_rx_coal_ticks); 1699 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS, sc->bge_tx_coal_ticks); 1700 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, sc->bge_rx_max_coal_bds); 1701 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS, sc->bge_tx_max_coal_bds); 1702 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1703 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS_INT, 0); 1704 CSR_WRITE_4(sc, BGE_HCC_TX_COAL_TICKS_INT, 0); 1705 } 1706 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS_INT, 0); 1707 CSR_WRITE_4(sc, BGE_HCC_TX_MAX_COAL_BDS_INT, 0); 1708 1709 /* Set up address of statistics block */ 1710 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1711 bge_set_hostaddr(&taddr, 1712 BGE_RING_DMA_ADDR(sc, bge_info.bge_stats)); 1713 CSR_WRITE_4(sc, BGE_HCC_STATS_TICKS, sc->bge_stat_ticks); 1714 CSR_WRITE_4(sc, BGE_HCC_STATS_BASEADDR, BGE_STATS_BLOCK); 1715 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_HI, taddr.bge_addr_hi); 1716 CSR_WRITE_4(sc, BGE_HCC_STATS_ADDR_LO, taddr.bge_addr_lo); 1717 } 1718 1719 /* Set up address of status block */ 1720 bge_set_hostaddr(&taddr, BGE_RING_DMA_ADDR(sc, bge_status_block)); 1721 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_BASEADDR, BGE_STATUS_BLOCK); 1722 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_HI, taddr.bge_addr_hi); 1723 CSR_WRITE_4(sc, BGE_HCC_STATUSBLK_ADDR_LO, taddr.bge_addr_lo); 1724 sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx = 0; 1725 sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx = 0; 1726 1727 /* Turn on host coalescing state machine */ 1728 CSR_WRITE_4(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); 1729 1730 /* Turn on RX BD completion state machine and enable attentions */ 1731 CSR_WRITE_4(sc, BGE_RBDC_MODE, 1732 BGE_RBDCMODE_ENABLE|BGE_RBDCMODE_ATTN); 1733 1734 /* Turn on RX list placement state machine */ 1735 CSR_WRITE_4(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); 1736 1737 /* Turn on RX list selector state machine. */ 1738 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1739 CSR_WRITE_4(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); 1740 } 1741 1742 /* Turn on DMA, clear stats */ 1743 CSR_WRITE_4(sc, BGE_MAC_MODE, BGE_MACMODE_TXDMA_ENB| 1744 BGE_MACMODE_RXDMA_ENB|BGE_MACMODE_RX_STATS_CLEAR| 1745 BGE_MACMODE_TX_STATS_CLEAR|BGE_MACMODE_RX_STATS_ENB| 1746 BGE_MACMODE_TX_STATS_ENB|BGE_MACMODE_FRMHDR_DMA_ENB| 1747 (sc->bge_tbi ? BGE_PORTMODE_TBI : BGE_PORTMODE_MII)); 1748 1749 /* Set misc. local control, enable interrupts on attentions */ 1750 sc->bge_local_ctrl_reg = BGE_MLC_INTR_ONATTN | BGE_MLC_AUTO_EEPROM; 1751 1752 #ifdef notdef 1753 /* Assert GPIO pins for PHY reset */ 1754 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUT0| 1755 BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUT2); 1756 BGE_SETBIT(sc, BGE_MISC_LOCAL_CTL, BGE_MLC_MISCIO_OUTEN0| 1757 BGE_MLC_MISCIO_OUTEN1|BGE_MLC_MISCIO_OUTEN2); 1758 #endif 1759 1760 #if defined(not_quite_yet) 1761 /* Linux driver enables enable gpio pin #1 on 5700s */ 1762 if (sc->bge_chipid == BGE_CHIPID_BCM5700) { 1763 sc->bge_local_ctrl_reg |= 1764 (BGE_MLC_MISCIO_OUT1|BGE_MLC_MISCIO_OUTEN1); 1765 } 1766 #endif 1767 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, sc->bge_local_ctrl_reg); 1768 1769 /* Turn on DMA completion state machine */ 1770 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1771 CSR_WRITE_4(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); 1772 } 1773 1774 /* Turn on write DMA state machine */ 1775 CSR_WRITE_4(sc, BGE_WDMA_MODE, 1776 BGE_WDMAMODE_ENABLE|BGE_WDMAMODE_ALL_ATTNS); 1777 1778 /* Turn on read DMA state machine */ 1779 { 1780 uint32_t dma_read_modebits; 1781 1782 dma_read_modebits = 1783 BGE_RDMAMODE_ENABLE | BGE_RDMAMODE_ALL_ATTNS; 1784 1785 if (sc->bge_pcie && 0) { 1786 dma_read_modebits |= BGE_RDMA_MODE_FIFO_LONG_BURST; 1787 } else if ((sc->bge_quirks & BGE_QUIRK_5705_CORE)) { 1788 dma_read_modebits |= BGE_RDMA_MODE_FIFO_SIZE_128; 1789 } 1790 1791 /* XXX broadcom-supplied linux driver; undocumented */ 1792 if (BGE_IS_5750_OR_BEYOND(sc)) { 1793 /* 1794 * XXX: magic values. 1795 * From Broadcom-supplied Linux driver; apparently 1796 * required to workaround a DMA bug affecting TSO 1797 * on bcm575x/bcm5721? 1798 */ 1799 dma_read_modebits |= (1 << 27); 1800 } 1801 CSR_WRITE_4(sc, BGE_RDMA_MODE, dma_read_modebits); 1802 } 1803 1804 /* Turn on RX data completion state machine */ 1805 CSR_WRITE_4(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); 1806 1807 /* Turn on RX BD initiator state machine */ 1808 CSR_WRITE_4(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); 1809 1810 /* Turn on RX data and RX BD initiator state machine */ 1811 CSR_WRITE_4(sc, BGE_RDBDI_MODE, BGE_RDBDIMODE_ENABLE); 1812 1813 /* Turn on Mbuf cluster free state machine */ 1814 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 1815 CSR_WRITE_4(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); 1816 } 1817 1818 /* Turn on send BD completion state machine */ 1819 CSR_WRITE_4(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); 1820 1821 /* Turn on send data completion state machine */ 1822 CSR_WRITE_4(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); 1823 1824 /* Turn on send data initiator state machine */ 1825 if (BGE_IS_5750_OR_BEYOND(sc)) { 1826 /* XXX: magic value from Linux driver */ 1827 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE | 0x08); 1828 } else { 1829 CSR_WRITE_4(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); 1830 } 1831 1832 /* Turn on send BD initiator state machine */ 1833 CSR_WRITE_4(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); 1834 1835 /* Turn on send BD selector state machine */ 1836 CSR_WRITE_4(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); 1837 1838 CSR_WRITE_4(sc, BGE_SDI_STATS_ENABLE_MASK, 0x007FFFFF); 1839 CSR_WRITE_4(sc, BGE_SDI_STATS_CTL, 1840 BGE_SDISTATSCTL_ENABLE|BGE_SDISTATSCTL_FASTER); 1841 1842 /* ack/clear link change events */ 1843 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| 1844 BGE_MACSTAT_CFG_CHANGED); 1845 CSR_WRITE_4(sc, BGE_MI_STS, 0); 1846 1847 /* Enable PHY auto polling (for MII/GMII only) */ 1848 if (sc->bge_tbi) { 1849 CSR_WRITE_4(sc, BGE_MI_STS, BGE_MISTS_LINK); 1850 } else { 1851 BGE_SETBIT(sc, BGE_MI_MODE, BGE_MIMODE_AUTOPOLL|10<<16); 1852 if (sc->bge_quirks & BGE_QUIRK_LINK_STATE_BROKEN) 1853 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, 1854 BGE_EVTENB_MI_INTERRUPT); 1855 } 1856 1857 /* Enable link state change attentions. */ 1858 BGE_SETBIT(sc, BGE_MAC_EVT_ENB, BGE_EVTENB_LINK_CHANGED); 1859 1860 return(0); 1861 } 1862 1863 static const struct bge_revision { 1864 uint32_t br_chipid; 1865 uint32_t br_quirks; 1866 const char *br_name; 1867 } bge_revisions[] = { 1868 { BGE_CHIPID_BCM5700_A0, 1869 BGE_QUIRK_LINK_STATE_BROKEN, 1870 "BCM5700 A0" }, 1871 1872 { BGE_CHIPID_BCM5700_A1, 1873 BGE_QUIRK_LINK_STATE_BROKEN, 1874 "BCM5700 A1" }, 1875 1876 { BGE_CHIPID_BCM5700_B0, 1877 BGE_QUIRK_LINK_STATE_BROKEN|BGE_QUIRK_CSUM_BROKEN|BGE_QUIRK_5700_COMMON, 1878 "BCM5700 B0" }, 1879 1880 { BGE_CHIPID_BCM5700_B1, 1881 BGE_QUIRK_LINK_STATE_BROKEN|BGE_QUIRK_5700_COMMON, 1882 "BCM5700 B1" }, 1883 1884 { BGE_CHIPID_BCM5700_B2, 1885 BGE_QUIRK_LINK_STATE_BROKEN|BGE_QUIRK_5700_COMMON, 1886 "BCM5700 B2" }, 1887 1888 { BGE_CHIPID_BCM5700_B3, 1889 BGE_QUIRK_LINK_STATE_BROKEN|BGE_QUIRK_5700_COMMON, 1890 "BCM5700 B3" }, 1891 1892 /* This is treated like a BCM5700 Bx */ 1893 { BGE_CHIPID_BCM5700_ALTIMA, 1894 BGE_QUIRK_LINK_STATE_BROKEN|BGE_QUIRK_5700_COMMON, 1895 "BCM5700 Altima" }, 1896 1897 { BGE_CHIPID_BCM5700_C0, 1898 0, 1899 "BCM5700 C0" }, 1900 1901 { BGE_CHIPID_BCM5701_A0, 1902 0, /*XXX really, just not known */ 1903 "BCM5701 A0" }, 1904 1905 { BGE_CHIPID_BCM5701_B0, 1906 BGE_QUIRK_PCIX_DMA_ALIGN_BUG, 1907 "BCM5701 B0" }, 1908 1909 { BGE_CHIPID_BCM5701_B2, 1910 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_PCIX_DMA_ALIGN_BUG, 1911 "BCM5701 B2" }, 1912 1913 { BGE_CHIPID_BCM5701_B5, 1914 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_PCIX_DMA_ALIGN_BUG, 1915 "BCM5701 B5" }, 1916 1917 { BGE_CHIPID_BCM5703_A0, 1918 0, 1919 "BCM5703 A0" }, 1920 1921 { BGE_CHIPID_BCM5703_A1, 1922 0, 1923 "BCM5703 A1" }, 1924 1925 { BGE_CHIPID_BCM5703_A2, 1926 BGE_QUIRK_ONLY_PHY_1, 1927 "BCM5703 A2" }, 1928 1929 { BGE_CHIPID_BCM5703_A3, 1930 BGE_QUIRK_ONLY_PHY_1, 1931 "BCM5703 A3" }, 1932 1933 { BGE_CHIPID_BCM5703_B0, 1934 BGE_QUIRK_ONLY_PHY_1, 1935 "BCM5703 B0" }, 1936 1937 { BGE_CHIPID_BCM5704_A0, 1938 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_FEWER_MBUFS, 1939 "BCM5704 A0" }, 1940 1941 { BGE_CHIPID_BCM5704_A1, 1942 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_FEWER_MBUFS, 1943 "BCM5704 A1" }, 1944 1945 { BGE_CHIPID_BCM5704_A2, 1946 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_FEWER_MBUFS, 1947 "BCM5704 A2" }, 1948 1949 { BGE_CHIPID_BCM5704_A3, 1950 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_FEWER_MBUFS, 1951 "BCM5704 A3" }, 1952 1953 { BGE_CHIPID_BCM5705_A0, 1954 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1955 "BCM5705 A0" }, 1956 1957 { BGE_CHIPID_BCM5705_A1, 1958 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1959 "BCM5705 A1" }, 1960 1961 { BGE_CHIPID_BCM5705_A2, 1962 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1963 "BCM5705 A2" }, 1964 1965 { BGE_CHIPID_BCM5705_A3, 1966 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1967 "BCM5705 A3" }, 1968 1969 { BGE_CHIPID_BCM5750_A0, 1970 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1971 "BCM5750 A0" }, 1972 1973 { BGE_CHIPID_BCM5750_A1, 1974 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1975 "BCM5750 A1" }, 1976 1977 { BGE_CHIPID_BCM5751_A1, 1978 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1979 "BCM5751 A1" }, 1980 1981 { BGE_CHIPID_BCM5752_A0, 1982 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1983 "BCM5752 A0" }, 1984 1985 { BGE_CHIPID_BCM5752_A1, 1986 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1987 "BCM5752 A1" }, 1988 1989 { BGE_CHIPID_BCM5752_A2, 1990 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 1991 "BCM5752 A2" }, 1992 1993 { 0, 0, NULL } 1994 }; 1995 1996 /* 1997 * Some defaults for major revisions, so that newer steppings 1998 * that we don't know about have a shot at working. 1999 */ 2000 static const struct bge_revision bge_majorrevs[] = { 2001 { BGE_ASICREV_BCM5700, 2002 BGE_QUIRK_LINK_STATE_BROKEN, 2003 "unknown BCM5700" }, 2004 2005 { BGE_ASICREV_BCM5701, 2006 BGE_QUIRK_PCIX_DMA_ALIGN_BUG, 2007 "unknown BCM5701" }, 2008 2009 { BGE_ASICREV_BCM5703, 2010 0, 2011 "unknown BCM5703" }, 2012 2013 { BGE_ASICREV_BCM5704, 2014 BGE_QUIRK_ONLY_PHY_1, 2015 "unknown BCM5704" }, 2016 2017 { BGE_ASICREV_BCM5705, 2018 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 2019 "unknown BCM5705" }, 2020 2021 { BGE_ASICREV_BCM5750, 2022 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 2023 "unknown BCM575x family" }, 2024 2025 { BGE_ASICREV_BCM5714_A0, 2026 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 2027 "unknown BCM5714" }, 2028 2029 { BGE_ASICREV_BCM5714, 2030 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 2031 "unknown BCM5714" }, 2032 2033 { BGE_ASICREV_BCM5752, 2034 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 2035 "unknown BCM5752 family" }, 2036 2037 2038 { BGE_ASICREV_BCM5780, 2039 BGE_QUIRK_ONLY_PHY_1|BGE_QUIRK_5705_CORE, 2040 "unknown BCM5780" }, 2041 2042 { 0, 2043 0, 2044 NULL } 2045 }; 2046 2047 2048 static const struct bge_revision * 2049 bge_lookup_rev(uint32_t chipid) 2050 { 2051 const struct bge_revision *br; 2052 2053 for (br = bge_revisions; br->br_name != NULL; br++) { 2054 if (br->br_chipid == chipid) 2055 return (br); 2056 } 2057 2058 for (br = bge_majorrevs; br->br_name != NULL; br++) { 2059 if (br->br_chipid == BGE_ASICREV(chipid)) 2060 return (br); 2061 } 2062 2063 return (NULL); 2064 } 2065 2066 static const struct bge_product { 2067 pci_vendor_id_t bp_vendor; 2068 pci_product_id_t bp_product; 2069 const char *bp_name; 2070 } bge_products[] = { 2071 /* 2072 * The BCM5700 documentation seems to indicate that the hardware 2073 * still has the Alteon vendor ID burned into it, though it 2074 * should always be overridden by the value in the EEPROM. We'll 2075 * check for it anyway. 2076 */ 2077 { PCI_VENDOR_ALTEON, 2078 PCI_PRODUCT_ALTEON_BCM5700, 2079 "Broadcom BCM5700 Gigabit Ethernet", 2080 }, 2081 { PCI_VENDOR_ALTEON, 2082 PCI_PRODUCT_ALTEON_BCM5701, 2083 "Broadcom BCM5701 Gigabit Ethernet", 2084 }, 2085 2086 { PCI_VENDOR_ALTIMA, 2087 PCI_PRODUCT_ALTIMA_AC1000, 2088 "Altima AC1000 Gigabit Ethernet", 2089 }, 2090 { PCI_VENDOR_ALTIMA, 2091 PCI_PRODUCT_ALTIMA_AC1001, 2092 "Altima AC1001 Gigabit Ethernet", 2093 }, 2094 { PCI_VENDOR_ALTIMA, 2095 PCI_PRODUCT_ALTIMA_AC9100, 2096 "Altima AC9100 Gigabit Ethernet", 2097 }, 2098 2099 { PCI_VENDOR_BROADCOM, 2100 PCI_PRODUCT_BROADCOM_BCM5700, 2101 "Broadcom BCM5700 Gigabit Ethernet", 2102 }, 2103 { PCI_VENDOR_BROADCOM, 2104 PCI_PRODUCT_BROADCOM_BCM5701, 2105 "Broadcom BCM5701 Gigabit Ethernet", 2106 }, 2107 { PCI_VENDOR_BROADCOM, 2108 PCI_PRODUCT_BROADCOM_BCM5702, 2109 "Broadcom BCM5702 Gigabit Ethernet", 2110 }, 2111 { PCI_VENDOR_BROADCOM, 2112 PCI_PRODUCT_BROADCOM_BCM5702X, 2113 "Broadcom BCM5702X Gigabit Ethernet" }, 2114 2115 { PCI_VENDOR_BROADCOM, 2116 PCI_PRODUCT_BROADCOM_BCM5703, 2117 "Broadcom BCM5703 Gigabit Ethernet", 2118 }, 2119 { PCI_VENDOR_BROADCOM, 2120 PCI_PRODUCT_BROADCOM_BCM5703X, 2121 "Broadcom BCM5703X Gigabit Ethernet", 2122 }, 2123 { PCI_VENDOR_BROADCOM, 2124 PCI_PRODUCT_BROADCOM_BCM5703_ALT, 2125 "Broadcom BCM5703 Gigabit Ethernet", 2126 }, 2127 2128 { PCI_VENDOR_BROADCOM, 2129 PCI_PRODUCT_BROADCOM_BCM5704C, 2130 "Broadcom BCM5704C Dual Gigabit Ethernet", 2131 }, 2132 { PCI_VENDOR_BROADCOM, 2133 PCI_PRODUCT_BROADCOM_BCM5704S, 2134 "Broadcom BCM5704S Dual Gigabit Ethernet", 2135 }, 2136 2137 { PCI_VENDOR_BROADCOM, 2138 PCI_PRODUCT_BROADCOM_BCM5705, 2139 "Broadcom BCM5705 Gigabit Ethernet", 2140 }, 2141 { PCI_VENDOR_BROADCOM, 2142 PCI_PRODUCT_BROADCOM_BCM5705K, 2143 "Broadcom BCM5705K Gigabit Ethernet", 2144 }, 2145 { PCI_VENDOR_BROADCOM, 2146 PCI_PRODUCT_BROADCOM_BCM5705M, 2147 "Broadcom BCM5705M Gigabit Ethernet", 2148 }, 2149 { PCI_VENDOR_BROADCOM, 2150 PCI_PRODUCT_BROADCOM_BCM5705M_ALT, 2151 "Broadcom BCM5705M Gigabit Ethernet", 2152 }, 2153 2154 { PCI_VENDOR_BROADCOM, 2155 PCI_PRODUCT_BROADCOM_BCM5714, 2156 "Broadcom BCM5714/5715 Gigabit Ethernet", 2157 }, 2158 { PCI_VENDOR_BROADCOM, 2159 PCI_PRODUCT_BROADCOM_BCM5789, 2160 "Broadcom BCM5789 Gigabit Ethernet", 2161 }, 2162 2163 { PCI_VENDOR_BROADCOM, 2164 PCI_PRODUCT_BROADCOM_BCM5721, 2165 "Broadcom BCM5721 Gigabit Ethernet", 2166 }, 2167 2168 { PCI_VENDOR_BROADCOM, 2169 PCI_PRODUCT_BROADCOM_BCM5750, 2170 "Broadcom BCM5750 Gigabit Ethernet", 2171 }, 2172 2173 { PCI_VENDOR_BROADCOM, 2174 PCI_PRODUCT_BROADCOM_BCM5750M, 2175 "Broadcom BCM5750M Gigabit Ethernet", 2176 }, 2177 2178 { PCI_VENDOR_BROADCOM, 2179 PCI_PRODUCT_BROADCOM_BCM5751, 2180 "Broadcom BCM5751 Gigabit Ethernet", 2181 }, 2182 2183 { PCI_VENDOR_BROADCOM, 2184 PCI_PRODUCT_BROADCOM_BCM5751M, 2185 "Broadcom BCM5751M Gigabit Ethernet", 2186 }, 2187 2188 { PCI_VENDOR_BROADCOM, 2189 PCI_PRODUCT_BROADCOM_BCM5752, 2190 "Broadcom BCM5752 Gigabit Ethernet", 2191 }, 2192 2193 { PCI_VENDOR_BROADCOM, 2194 PCI_PRODUCT_BROADCOM_BCM5752M, 2195 "Broadcom BCM5752M Gigabit Ethernet", 2196 }, 2197 2198 { PCI_VENDOR_BROADCOM, 2199 PCI_PRODUCT_BROADCOM_BCM5780, 2200 "Broadcom BCM5780 Gigabit Ethernet", 2201 }, 2202 2203 { PCI_VENDOR_BROADCOM, 2204 PCI_PRODUCT_BROADCOM_BCM5780S, 2205 "Broadcom BCM5780S Gigabit Ethernet", 2206 }, 2207 2208 { PCI_VENDOR_BROADCOM, 2209 PCI_PRODUCT_BROADCOM_BCM5782, 2210 "Broadcom BCM5782 Gigabit Ethernet", 2211 }, 2212 2213 { PCI_VENDOR_BROADCOM, 2214 PCI_PRODUCT_BROADCOM_BCM5788, 2215 "Broadcom BCM5788 Gigabit Ethernet", 2216 }, 2217 { PCI_VENDOR_BROADCOM, 2218 PCI_PRODUCT_BROADCOM_BCM5789, 2219 "Broadcom BCM5789 Gigabit Ethernet", 2220 }, 2221 2222 { PCI_VENDOR_BROADCOM, 2223 PCI_PRODUCT_BROADCOM_BCM5901, 2224 "Broadcom BCM5901 Fast Ethernet", 2225 }, 2226 { PCI_VENDOR_BROADCOM, 2227 PCI_PRODUCT_BROADCOM_BCM5901A2, 2228 "Broadcom BCM5901A2 Fast Ethernet", 2229 }, 2230 2231 { PCI_VENDOR_SCHNEIDERKOCH, 2232 PCI_PRODUCT_SCHNEIDERKOCH_SK_9DX1, 2233 "SysKonnect SK-9Dx1 Gigabit Ethernet", 2234 }, 2235 2236 { PCI_VENDOR_3COM, 2237 PCI_PRODUCT_3COM_3C996, 2238 "3Com 3c996 Gigabit Ethernet", 2239 }, 2240 2241 { 0, 2242 0, 2243 NULL }, 2244 }; 2245 2246 static const struct bge_product * 2247 bge_lookup(const struct pci_attach_args *pa) 2248 { 2249 const struct bge_product *bp; 2250 2251 for (bp = bge_products; bp->bp_name != NULL; bp++) { 2252 if (PCI_VENDOR(pa->pa_id) == bp->bp_vendor && 2253 PCI_PRODUCT(pa->pa_id) == bp->bp_product) 2254 return (bp); 2255 } 2256 2257 return (NULL); 2258 } 2259 2260 static int 2261 bge_setpowerstate(struct bge_softc *sc, int powerlevel) 2262 { 2263 #ifdef NOTYET 2264 u_int32_t pm_ctl = 0; 2265 2266 /* XXX FIXME: make sure indirect accesses enabled? */ 2267 pm_ctl = pci_conf_read(sc->bge_dev, BGE_PCI_MISC_CTL, 4); 2268 pm_ctl |= BGE_PCIMISCCTL_INDIRECT_ACCESS; 2269 pci_write_config(sc->bge_dev, BGE_PCI_MISC_CTL, pm_ctl, 4); 2270 2271 /* clear the PME_assert bit and power state bits, enable PME */ 2272 pm_ctl = pci_conf_read(sc->bge_dev, BGE_PCI_PWRMGMT_CMD, 2); 2273 pm_ctl &= ~PCIM_PSTAT_DMASK; 2274 pm_ctl |= (1 << 8); 2275 2276 if (powerlevel == 0) { 2277 pm_ctl |= PCIM_PSTAT_D0; 2278 pci_write_config(sc->bge_dev, BGE_PCI_PWRMGMT_CMD, 2279 pm_ctl, 2); 2280 DELAY(10000); 2281 CSR_WRITE_4(sc, BGE_MISC_LOCAL_CTL, sc->bge_local_ctrl_reg); 2282 DELAY(10000); 2283 2284 #ifdef NOTYET 2285 /* XXX FIXME: write 0x02 to phy aux_Ctrl reg */ 2286 bge_miibus_writereg(sc->bge_dev, 1, 0x18, 0x02); 2287 #endif 2288 DELAY(40); DELAY(40); DELAY(40); 2289 DELAY(10000); /* above not quite adequate on 5700 */ 2290 return 0; 2291 } 2292 2293 2294 /* 2295 * Entering ACPI power states D1-D3 is achieved by wiggling 2296 * GMII gpio pins. Example code assumes all hardware vendors 2297 * followed Broadom's sample pcb layout. Until we verify that 2298 * for all supported OEM cards, states D1-D3 are unsupported. 2299 */ 2300 printf("%s: power state %d unimplemented; check GPIO pins\n", 2301 sc->bge_dev.dv_xname, powerlevel); 2302 #endif 2303 return EOPNOTSUPP; 2304 } 2305 2306 2307 /* 2308 * Probe for a Broadcom chip. Check the PCI vendor and device IDs 2309 * against our list and return its name if we find a match. Note 2310 * that since the Broadcom controller contains VPD support, we 2311 * can get the device name string from the controller itself instead 2312 * of the compiled-in string. This is a little slow, but it guarantees 2313 * we'll always announce the right product name. 2314 */ 2315 static int 2316 bge_probe(device_t parent, cfdata_t match, void *aux) 2317 { 2318 struct pci_attach_args *pa = (struct pci_attach_args *)aux; 2319 2320 if (bge_lookup(pa) != NULL) 2321 return (1); 2322 2323 return (0); 2324 } 2325 2326 static void 2327 bge_attach(device_t parent, device_t self, void *aux) 2328 { 2329 struct bge_softc *sc = (struct bge_softc *)self; 2330 struct pci_attach_args *pa = aux; 2331 const struct bge_product *bp; 2332 const struct bge_revision *br; 2333 pci_chipset_tag_t pc = pa->pa_pc; 2334 pci_intr_handle_t ih; 2335 const char *intrstr = NULL; 2336 bus_dma_segment_t seg; 2337 int rseg; 2338 u_int32_t hwcfg = 0; 2339 u_int32_t mac_addr = 0; 2340 u_int32_t command; 2341 struct ifnet *ifp; 2342 void * kva; 2343 u_char eaddr[ETHER_ADDR_LEN]; 2344 pcireg_t memtype; 2345 bus_addr_t memaddr; 2346 bus_size_t memsize; 2347 u_int32_t pm_ctl; 2348 2349 bp = bge_lookup(pa); 2350 KASSERT(bp != NULL); 2351 2352 sc->bge_pa = *pa; 2353 2354 aprint_naive(": Ethernet controller\n"); 2355 aprint_normal(": %s\n", bp->bp_name); 2356 2357 /* 2358 * Map control/status registers. 2359 */ 2360 DPRINTFN(5, ("Map control/status regs\n")); 2361 command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 2362 command |= PCI_COMMAND_MEM_ENABLE | PCI_COMMAND_MASTER_ENABLE; 2363 pci_conf_write(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, command); 2364 command = pci_conf_read(pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 2365 2366 if (!(command & PCI_COMMAND_MEM_ENABLE)) { 2367 aprint_error("%s: failed to enable memory mapping!\n", 2368 sc->bge_dev.dv_xname); 2369 return; 2370 } 2371 2372 DPRINTFN(5, ("pci_mem_find\n")); 2373 memtype = pci_mapreg_type(pa->pa_pc, pa->pa_tag, BGE_PCI_BAR0); 2374 switch (memtype) { 2375 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 2376 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 2377 if (pci_mapreg_map(pa, BGE_PCI_BAR0, 2378 memtype, 0, &sc->bge_btag, &sc->bge_bhandle, 2379 &memaddr, &memsize) == 0) 2380 break; 2381 default: 2382 aprint_error("%s: can't find mem space\n", 2383 sc->bge_dev.dv_xname); 2384 return; 2385 } 2386 2387 DPRINTFN(5, ("pci_intr_map\n")); 2388 if (pci_intr_map(pa, &ih)) { 2389 aprint_error("%s: couldn't map interrupt\n", 2390 sc->bge_dev.dv_xname); 2391 return; 2392 } 2393 2394 DPRINTFN(5, ("pci_intr_string\n")); 2395 intrstr = pci_intr_string(pc, ih); 2396 2397 DPRINTFN(5, ("pci_intr_establish\n")); 2398 sc->bge_intrhand = pci_intr_establish(pc, ih, IPL_NET, bge_intr, sc); 2399 2400 if (sc->bge_intrhand == NULL) { 2401 aprint_error("%s: couldn't establish interrupt", 2402 sc->bge_dev.dv_xname); 2403 if (intrstr != NULL) 2404 aprint_normal(" at %s", intrstr); 2405 aprint_normal("\n"); 2406 return; 2407 } 2408 aprint_normal("%s: interrupting at %s\n", 2409 sc->bge_dev.dv_xname, intrstr); 2410 2411 /* 2412 * Kludge for 5700 Bx bug: a hardware bug (PCIX byte enable?) 2413 * can clobber the chip's PCI config-space power control registers, 2414 * leaving the card in D3 powersave state. 2415 * We do not have memory-mapped registers in this state, 2416 * so force device into D0 state before starting initialization. 2417 */ 2418 pm_ctl = pci_conf_read(pc, pa->pa_tag, BGE_PCI_PWRMGMT_CMD); 2419 pm_ctl &= ~(PCI_PWR_D0|PCI_PWR_D1|PCI_PWR_D2|PCI_PWR_D3); 2420 pm_ctl |= (1 << 8) | PCI_PWR_D0 ; /* D0 state */ 2421 pci_conf_write(pc, pa->pa_tag, BGE_PCI_PWRMGMT_CMD, pm_ctl); 2422 DELAY(1000); /* 27 usec is allegedly sufficent */ 2423 2424 /* 2425 * Save ASIC rev. Look up any quirks associated with this 2426 * ASIC. 2427 */ 2428 sc->bge_chipid = 2429 pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL) & 2430 BGE_PCIMISCCTL_ASICREV; 2431 2432 /* 2433 * Detect PCI-Express devices 2434 * XXX: guessed from Linux/FreeBSD; no documentation 2435 */ 2436 if (pci_get_capability(pa->pa_pc, pa->pa_tag, PCI_CAP_PCIEXPRESS, 2437 NULL, NULL) != 0) 2438 sc->bge_pcie = 1; 2439 else 2440 sc->bge_pcie = 0; 2441 2442 /* Try to reset the chip. */ 2443 DPRINTFN(5, ("bge_reset\n")); 2444 bge_reset(sc); 2445 2446 if (bge_chipinit(sc)) { 2447 aprint_error("%s: chip initialization failed\n", 2448 sc->bge_dev.dv_xname); 2449 bge_release_resources(sc); 2450 return; 2451 } 2452 2453 /* 2454 * Get station address from the EEPROM. 2455 */ 2456 mac_addr = bge_readmem_ind(sc, 0x0c14); 2457 if ((mac_addr >> 16) == 0x484b) { 2458 eaddr[0] = (u_char)(mac_addr >> 8); 2459 eaddr[1] = (u_char)(mac_addr >> 0); 2460 mac_addr = bge_readmem_ind(sc, 0x0c18); 2461 eaddr[2] = (u_char)(mac_addr >> 24); 2462 eaddr[3] = (u_char)(mac_addr >> 16); 2463 eaddr[4] = (u_char)(mac_addr >> 8); 2464 eaddr[5] = (u_char)(mac_addr >> 0); 2465 } else if (bge_read_eeprom(sc, (void *)eaddr, 2466 BGE_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { 2467 aprint_error("%s: failed to read station address\n", 2468 sc->bge_dev.dv_xname); 2469 bge_release_resources(sc); 2470 return; 2471 } 2472 2473 br = bge_lookup_rev(sc->bge_chipid); 2474 aprint_normal("%s: ", sc->bge_dev.dv_xname); 2475 2476 if (br == NULL) { 2477 aprint_normal("unknown ASIC (0x%04x)", sc->bge_chipid >> 16); 2478 sc->bge_quirks = 0; 2479 } else { 2480 aprint_normal("ASIC %s (0x%04x)", 2481 br->br_name, sc->bge_chipid >> 16); 2482 sc->bge_quirks |= br->br_quirks; 2483 } 2484 aprint_normal(", Ethernet address %s\n", ether_sprintf(eaddr)); 2485 2486 /* Allocate the general information block and ring buffers. */ 2487 if (pci_dma64_available(pa)) 2488 sc->bge_dmatag = pa->pa_dmat64; 2489 else 2490 sc->bge_dmatag = pa->pa_dmat; 2491 DPRINTFN(5, ("bus_dmamem_alloc\n")); 2492 if (bus_dmamem_alloc(sc->bge_dmatag, sizeof(struct bge_ring_data), 2493 PAGE_SIZE, 0, &seg, 1, &rseg, BUS_DMA_NOWAIT)) { 2494 aprint_error("%s: can't alloc rx buffers\n", 2495 sc->bge_dev.dv_xname); 2496 return; 2497 } 2498 DPRINTFN(5, ("bus_dmamem_map\n")); 2499 if (bus_dmamem_map(sc->bge_dmatag, &seg, rseg, 2500 sizeof(struct bge_ring_data), &kva, 2501 BUS_DMA_NOWAIT)) { 2502 aprint_error("%s: can't map DMA buffers (%d bytes)\n", 2503 sc->bge_dev.dv_xname, (int)sizeof(struct bge_ring_data)); 2504 bus_dmamem_free(sc->bge_dmatag, &seg, rseg); 2505 return; 2506 } 2507 DPRINTFN(5, ("bus_dmamem_create\n")); 2508 if (bus_dmamap_create(sc->bge_dmatag, sizeof(struct bge_ring_data), 1, 2509 sizeof(struct bge_ring_data), 0, 2510 BUS_DMA_NOWAIT, &sc->bge_ring_map)) { 2511 aprint_error("%s: can't create DMA map\n", 2512 sc->bge_dev.dv_xname); 2513 bus_dmamem_unmap(sc->bge_dmatag, kva, 2514 sizeof(struct bge_ring_data)); 2515 bus_dmamem_free(sc->bge_dmatag, &seg, rseg); 2516 return; 2517 } 2518 DPRINTFN(5, ("bus_dmamem_load\n")); 2519 if (bus_dmamap_load(sc->bge_dmatag, sc->bge_ring_map, kva, 2520 sizeof(struct bge_ring_data), NULL, 2521 BUS_DMA_NOWAIT)) { 2522 bus_dmamap_destroy(sc->bge_dmatag, sc->bge_ring_map); 2523 bus_dmamem_unmap(sc->bge_dmatag, kva, 2524 sizeof(struct bge_ring_data)); 2525 bus_dmamem_free(sc->bge_dmatag, &seg, rseg); 2526 return; 2527 } 2528 2529 DPRINTFN(5, ("bzero\n")); 2530 sc->bge_rdata = (struct bge_ring_data *)kva; 2531 2532 memset(sc->bge_rdata, 0, sizeof(struct bge_ring_data)); 2533 2534 /* Try to allocate memory for jumbo buffers. */ 2535 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 2536 if (bge_alloc_jumbo_mem(sc)) { 2537 aprint_error("%s: jumbo buffer allocation failed\n", 2538 sc->bge_dev.dv_xname); 2539 } else 2540 sc->ethercom.ec_capabilities |= ETHERCAP_JUMBO_MTU; 2541 } 2542 2543 /* Set default tuneable values. */ 2544 sc->bge_stat_ticks = BGE_TICKS_PER_SEC; 2545 sc->bge_rx_coal_ticks = 150; 2546 sc->bge_rx_max_coal_bds = 64; 2547 #ifdef ORIG_WPAUL_VALUES 2548 sc->bge_tx_coal_ticks = 150; 2549 sc->bge_tx_max_coal_bds = 128; 2550 #else 2551 sc->bge_tx_coal_ticks = 300; 2552 sc->bge_tx_max_coal_bds = 400; 2553 #endif 2554 if (sc->bge_quirks & BGE_QUIRK_5705_CORE) { 2555 sc->bge_tx_coal_ticks = (12 * 5); 2556 sc->bge_rx_max_coal_bds = (12 * 5); 2557 aprint_verbose("%s: setting short Tx thresholds\n", 2558 sc->bge_dev.dv_xname); 2559 } 2560 2561 /* Set up ifnet structure */ 2562 ifp = &sc->ethercom.ec_if; 2563 ifp->if_softc = sc; 2564 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 2565 ifp->if_ioctl = bge_ioctl; 2566 ifp->if_start = bge_start; 2567 ifp->if_init = bge_init; 2568 ifp->if_watchdog = bge_watchdog; 2569 IFQ_SET_MAXLEN(&ifp->if_snd, max(BGE_TX_RING_CNT - 1, IFQ_MAXLEN)); 2570 IFQ_SET_READY(&ifp->if_snd); 2571 DPRINTFN(5, ("strcpy if_xname\n")); 2572 strcpy(ifp->if_xname, sc->bge_dev.dv_xname); 2573 2574 if ((sc->bge_quirks & BGE_QUIRK_CSUM_BROKEN) == 0) 2575 sc->ethercom.ec_if.if_capabilities |= 2576 IFCAP_CSUM_IPv4_Tx | IFCAP_CSUM_IPv4_Rx | 2577 IFCAP_CSUM_TCPv4_Tx | IFCAP_CSUM_TCPv4_Rx | 2578 IFCAP_CSUM_UDPv4_Tx | IFCAP_CSUM_UDPv4_Rx; 2579 sc->ethercom.ec_capabilities |= 2580 ETHERCAP_VLAN_HWTAGGING | ETHERCAP_VLAN_MTU; 2581 2582 if (sc->bge_pcie) 2583 sc->ethercom.ec_if.if_capabilities |= IFCAP_TSOv4; 2584 2585 /* 2586 * Do MII setup. 2587 */ 2588 DPRINTFN(5, ("mii setup\n")); 2589 sc->bge_mii.mii_ifp = ifp; 2590 sc->bge_mii.mii_readreg = bge_miibus_readreg; 2591 sc->bge_mii.mii_writereg = bge_miibus_writereg; 2592 sc->bge_mii.mii_statchg = bge_miibus_statchg; 2593 2594 /* 2595 * Figure out what sort of media we have by checking the 2596 * hardware config word in the first 32k of NIC internal memory, 2597 * or fall back to the config word in the EEPROM. Note: on some BCM5700 2598 * cards, this value appears to be unset. If that's the 2599 * case, we have to rely on identifying the NIC by its PCI 2600 * subsystem ID, as we do below for the SysKonnect SK-9D41. 2601 */ 2602 if (bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_SIG) == BGE_MAGIC_NUMBER) { 2603 hwcfg = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM_NICCFG); 2604 } else { 2605 bge_read_eeprom(sc, (void *)&hwcfg, 2606 BGE_EE_HWCFG_OFFSET, sizeof(hwcfg)); 2607 hwcfg = be32toh(hwcfg); 2608 } 2609 if ((hwcfg & BGE_HWCFG_MEDIA) == BGE_MEDIA_FIBER) 2610 sc->bge_tbi = 1; 2611 2612 /* The SysKonnect SK-9D41 is a 1000baseSX card. */ 2613 if ((pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_SUBSYS) >> 16) == 2614 SK_SUBSYSID_9D41) 2615 sc->bge_tbi = 1; 2616 2617 if (sc->bge_tbi) { 2618 ifmedia_init(&sc->bge_ifmedia, IFM_IMASK, bge_ifmedia_upd, 2619 bge_ifmedia_sts); 2620 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL); 2621 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_1000_SX|IFM_FDX, 2622 0, NULL); 2623 ifmedia_add(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); 2624 ifmedia_set(&sc->bge_ifmedia, IFM_ETHER|IFM_AUTO); 2625 } else { 2626 /* 2627 * Do transceiver setup. 2628 */ 2629 ifmedia_init(&sc->bge_mii.mii_media, 0, bge_ifmedia_upd, 2630 bge_ifmedia_sts); 2631 mii_attach(&sc->bge_dev, &sc->bge_mii, 0xffffffff, 2632 MII_PHY_ANY, MII_OFFSET_ANY, 2633 MIIF_FORCEANEG|MIIF_DOPAUSE); 2634 2635 if (LIST_FIRST(&sc->bge_mii.mii_phys) == NULL) { 2636 printf("%s: no PHY found!\n", sc->bge_dev.dv_xname); 2637 ifmedia_add(&sc->bge_mii.mii_media, 2638 IFM_ETHER|IFM_MANUAL, 0, NULL); 2639 ifmedia_set(&sc->bge_mii.mii_media, 2640 IFM_ETHER|IFM_MANUAL); 2641 } else 2642 ifmedia_set(&sc->bge_mii.mii_media, 2643 IFM_ETHER|IFM_AUTO); 2644 } 2645 2646 /* 2647 * When using the BCM5701 in PCI-X mode, data corruption has 2648 * been observed in the first few bytes of some received packets. 2649 * Aligning the packet buffer in memory eliminates the corruption. 2650 * Unfortunately, this misaligns the packet payloads. On platforms 2651 * which do not support unaligned accesses, we will realign the 2652 * payloads by copying the received packets. 2653 */ 2654 if (sc->bge_quirks & BGE_QUIRK_PCIX_DMA_ALIGN_BUG) { 2655 /* If in PCI-X mode, work around the alignment bug. */ 2656 if ((pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_PCISTATE) & 2657 (BGE_PCISTATE_PCI_BUSMODE | BGE_PCISTATE_PCI_BUSSPEED)) == 2658 BGE_PCISTATE_PCI_BUSSPEED) 2659 sc->bge_rx_alignment_bug = 1; 2660 } 2661 2662 /* 2663 * Call MI attach routine. 2664 */ 2665 DPRINTFN(5, ("if_attach\n")); 2666 if_attach(ifp); 2667 DPRINTFN(5, ("ether_ifattach\n")); 2668 ether_ifattach(ifp, eaddr); 2669 #ifdef BGE_EVENT_COUNTERS 2670 /* 2671 * Attach event counters. 2672 */ 2673 evcnt_attach_dynamic(&sc->bge_ev_intr, EVCNT_TYPE_INTR, 2674 NULL, sc->bge_dev.dv_xname, "intr"); 2675 evcnt_attach_dynamic(&sc->bge_ev_tx_xoff, EVCNT_TYPE_MISC, 2676 NULL, sc->bge_dev.dv_xname, "tx_xoff"); 2677 evcnt_attach_dynamic(&sc->bge_ev_tx_xon, EVCNT_TYPE_MISC, 2678 NULL, sc->bge_dev.dv_xname, "tx_xon"); 2679 evcnt_attach_dynamic(&sc->bge_ev_rx_xoff, EVCNT_TYPE_MISC, 2680 NULL, sc->bge_dev.dv_xname, "rx_xoff"); 2681 evcnt_attach_dynamic(&sc->bge_ev_rx_xon, EVCNT_TYPE_MISC, 2682 NULL, sc->bge_dev.dv_xname, "rx_xon"); 2683 evcnt_attach_dynamic(&sc->bge_ev_rx_macctl, EVCNT_TYPE_MISC, 2684 NULL, sc->bge_dev.dv_xname, "rx_macctl"); 2685 evcnt_attach_dynamic(&sc->bge_ev_xoffentered, EVCNT_TYPE_MISC, 2686 NULL, sc->bge_dev.dv_xname, "xoffentered"); 2687 #endif /* BGE_EVENT_COUNTERS */ 2688 DPRINTFN(5, ("callout_init\n")); 2689 callout_init(&sc->bge_timeout); 2690 2691 sc->bge_powerhook = powerhook_establish(sc->bge_dev.dv_xname, 2692 bge_powerhook, sc); 2693 if (sc->bge_powerhook == NULL) 2694 printf("%s: WARNING: unable to establish PCI power hook\n", 2695 sc->bge_dev.dv_xname); 2696 } 2697 2698 static void 2699 bge_release_resources(struct bge_softc *sc) 2700 { 2701 if (sc->bge_vpd_prodname != NULL) 2702 free(sc->bge_vpd_prodname, M_DEVBUF); 2703 2704 if (sc->bge_vpd_readonly != NULL) 2705 free(sc->bge_vpd_readonly, M_DEVBUF); 2706 } 2707 2708 static void 2709 bge_reset(struct bge_softc *sc) 2710 { 2711 struct pci_attach_args *pa = &sc->bge_pa; 2712 u_int32_t cachesize, command, pcistate, new_pcistate; 2713 int i, val; 2714 2715 /* Save some important PCI state. */ 2716 cachesize = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ); 2717 command = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD); 2718 pcistate = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_PCISTATE); 2719 2720 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, 2721 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| 2722 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW); 2723 2724 /* 2725 * Disable the firmware fastboot feature on 5752 ASIC 2726 * to avoid firmware timeout. 2727 */ 2728 if (BGE_ASICREV(sc->bge_chipid) == BGE_ASICREV_BCM5752) 2729 CSR_WRITE_4(sc, BGE_FASTBOOT_PC, 0); 2730 2731 val = BGE_MISCCFG_RESET_CORE_CLOCKS | (65<<1); 2732 /* 2733 * XXX: from FreeBSD/Linux; no documentation 2734 */ 2735 if (sc->bge_pcie) { 2736 if (CSR_READ_4(sc, BGE_PCIE_CTL1) == 0x60) 2737 CSR_WRITE_4(sc, BGE_PCIE_CTL1, 0x20); 2738 if (sc->bge_chipid != BGE_CHIPID_BCM5750_A0) { 2739 /* No idea what that actually means */ 2740 CSR_WRITE_4(sc, BGE_MISC_CFG, 1 << 29); 2741 val |= (1<<29); 2742 } 2743 } 2744 2745 /* Issue global reset */ 2746 bge_writereg_ind(sc, BGE_MISC_CFG, val); 2747 2748 DELAY(1000); 2749 2750 /* 2751 * XXX: from FreeBSD/Linux; no documentation 2752 */ 2753 if (sc->bge_pcie) { 2754 if (sc->bge_chipid == BGE_CHIPID_BCM5750_A0) { 2755 pcireg_t reg; 2756 2757 DELAY(500000); 2758 /* XXX: Magic Numbers */ 2759 reg = pci_conf_read(pa->pa_pc, pa->pa_tag, BGE_PCI_UNKNOWN0); 2760 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_UNKNOWN0, 2761 reg | (1 << 15)); 2762 } 2763 /* 2764 * XXX: Magic Numbers. 2765 * Sets maximal PCI-e payload and clears any PCI-e errors. 2766 * Should be replaced with references to PCI config-space 2767 * capability block for PCI-Express. 2768 */ 2769 pci_conf_write(pa->pa_pc, pa->pa_tag, 2770 BGE_PCI_CONF_DEV_CTRL, 0xf5000); 2771 2772 } 2773 2774 /* Reset some of the PCI state that got zapped by reset */ 2775 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_MISC_CTL, 2776 BGE_PCIMISCCTL_INDIRECT_ACCESS|BGE_PCIMISCCTL_MASK_PCI_INTR| 2777 BGE_HIF_SWAP_OPTIONS|BGE_PCIMISCCTL_PCISTATE_RW); 2778 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CMD, command); 2779 pci_conf_write(pa->pa_pc, pa->pa_tag, BGE_PCI_CACHESZ, cachesize); 2780 bge_writereg_ind(sc, BGE_MISC_CFG, (65 << 1)); 2781 2782 /* Enable memory arbiter. */ 2783 { 2784 uint32_t marbmode = 0; 2785 if (BGE_IS_5714_FAMILY(sc)) { 2786 marbmode = CSR_READ_4(sc, BGE_MARB_MODE); 2787 } 2788 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | marbmode); 2789 } 2790 2791 /* 2792 * Prevent PXE restart: write a magic number to the 2793 * general communications memory at 0xB50. 2794 */ 2795 bge_writemem_ind(sc, BGE_SOFTWARE_GENCOMM, BGE_MAGIC_NUMBER); 2796 2797 /* 2798 * Poll the value location we just wrote until 2799 * we see the 1's complement of the magic number. 2800 * This indicates that the firmware initialization 2801 * is complete. 2802 */ 2803 for (i = 0; i < BGE_TIMEOUT; i++) { 2804 val = bge_readmem_ind(sc, BGE_SOFTWARE_GENCOMM); 2805 if (val == ~BGE_MAGIC_NUMBER) 2806 break; 2807 DELAY(1000); 2808 } 2809 2810 if (i >= BGE_TIMEOUT) { 2811 printf("%s: firmware handshake timed out, val = %x\n", 2812 sc->bge_dev.dv_xname, val); 2813 /* 2814 * XXX: occasionally fired on bcm5721, but without 2815 * apparent harm. For now, keep going if we timeout 2816 * against PCI-E devices. 2817 */ 2818 if (!sc->bge_pcie) 2819 return; 2820 } 2821 2822 /* 2823 * XXX Wait for the value of the PCISTATE register to 2824 * return to its original pre-reset state. This is a 2825 * fairly good indicator of reset completion. If we don't 2826 * wait for the reset to fully complete, trying to read 2827 * from the device's non-PCI registers may yield garbage 2828 * results. 2829 */ 2830 for (i = 0; i < BGE_TIMEOUT; i++) { 2831 new_pcistate = pci_conf_read(pa->pa_pc, pa->pa_tag, 2832 BGE_PCI_PCISTATE); 2833 if ((new_pcistate & ~BGE_PCISTATE_RESERVED) == 2834 (pcistate & ~BGE_PCISTATE_RESERVED)) 2835 break; 2836 DELAY(10); 2837 } 2838 if ((new_pcistate & ~BGE_PCISTATE_RESERVED) != 2839 (pcistate & ~BGE_PCISTATE_RESERVED)) { 2840 printf("%s: pcistate failed to revert\n", 2841 sc->bge_dev.dv_xname); 2842 } 2843 2844 /* XXX: from FreeBSD/Linux; no documentation */ 2845 if (sc->bge_pcie && sc->bge_chipid != BGE_CHIPID_BCM5750_A0) 2846 CSR_WRITE_4(sc, BGE_PCIE_CTL0, CSR_READ_4(sc, BGE_PCIE_CTL0) | (1<<25)); 2847 2848 /* Enable memory arbiter. */ 2849 /* XXX why do this twice? */ 2850 { 2851 uint32_t marbmode = 0; 2852 if (BGE_IS_5714_FAMILY(sc)) { 2853 marbmode = CSR_READ_4(sc, BGE_MARB_MODE); 2854 } 2855 CSR_WRITE_4(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE | marbmode); 2856 } 2857 2858 /* Fix up byte swapping */ 2859 CSR_WRITE_4(sc, BGE_MODE_CTL, BGE_DMA_SWAP_OPTIONS); 2860 2861 CSR_WRITE_4(sc, BGE_MAC_MODE, 0); 2862 2863 DELAY(10000); 2864 } 2865 2866 /* 2867 * Frame reception handling. This is called if there's a frame 2868 * on the receive return list. 2869 * 2870 * Note: we have to be able to handle two possibilities here: 2871 * 1) the frame is from the jumbo recieve ring 2872 * 2) the frame is from the standard receive ring 2873 */ 2874 2875 static void 2876 bge_rxeof(struct bge_softc *sc) 2877 { 2878 struct ifnet *ifp; 2879 int stdcnt = 0, jumbocnt = 0; 2880 bus_dmamap_t dmamap; 2881 bus_addr_t offset, toff; 2882 bus_size_t tlen; 2883 int tosync; 2884 2885 ifp = &sc->ethercom.ec_if; 2886 2887 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2888 offsetof(struct bge_ring_data, bge_status_block), 2889 sizeof (struct bge_status_block), 2890 BUS_DMASYNC_POSTREAD); 2891 2892 offset = offsetof(struct bge_ring_data, bge_rx_return_ring); 2893 tosync = sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx - 2894 sc->bge_rx_saved_considx; 2895 2896 toff = offset + (sc->bge_rx_saved_considx * sizeof (struct bge_rx_bd)); 2897 2898 if (tosync < 0) { 2899 tlen = (sc->bge_return_ring_cnt - sc->bge_rx_saved_considx) * 2900 sizeof (struct bge_rx_bd); 2901 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2902 toff, tlen, BUS_DMASYNC_POSTREAD); 2903 tosync = -tosync; 2904 } 2905 2906 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 2907 offset, tosync * sizeof (struct bge_rx_bd), 2908 BUS_DMASYNC_POSTREAD); 2909 2910 while(sc->bge_rx_saved_considx != 2911 sc->bge_rdata->bge_status_block.bge_idx[0].bge_rx_prod_idx) { 2912 struct bge_rx_bd *cur_rx; 2913 u_int32_t rxidx; 2914 struct mbuf *m = NULL; 2915 2916 cur_rx = &sc->bge_rdata-> 2917 bge_rx_return_ring[sc->bge_rx_saved_considx]; 2918 2919 rxidx = cur_rx->bge_idx; 2920 BGE_INC(sc->bge_rx_saved_considx, sc->bge_return_ring_cnt); 2921 2922 if (cur_rx->bge_flags & BGE_RXBDFLAG_JUMBO_RING) { 2923 BGE_INC(sc->bge_jumbo, BGE_JUMBO_RX_RING_CNT); 2924 m = sc->bge_cdata.bge_rx_jumbo_chain[rxidx]; 2925 sc->bge_cdata.bge_rx_jumbo_chain[rxidx] = NULL; 2926 jumbocnt++; 2927 bus_dmamap_sync(sc->bge_dmatag, 2928 sc->bge_cdata.bge_rx_jumbo_map, 2929 mtod(m, char *) - (char *)sc->bge_cdata.bge_jumbo_buf, 2930 BGE_JLEN, BUS_DMASYNC_POSTREAD); 2931 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { 2932 ifp->if_ierrors++; 2933 bge_newbuf_jumbo(sc, sc->bge_jumbo, m); 2934 continue; 2935 } 2936 if (bge_newbuf_jumbo(sc, sc->bge_jumbo, 2937 NULL)== ENOBUFS) { 2938 ifp->if_ierrors++; 2939 bge_newbuf_jumbo(sc, sc->bge_jumbo, m); 2940 continue; 2941 } 2942 } else { 2943 BGE_INC(sc->bge_std, BGE_STD_RX_RING_CNT); 2944 m = sc->bge_cdata.bge_rx_std_chain[rxidx]; 2945 2946 sc->bge_cdata.bge_rx_std_chain[rxidx] = NULL; 2947 stdcnt++; 2948 dmamap = sc->bge_cdata.bge_rx_std_map[rxidx]; 2949 sc->bge_cdata.bge_rx_std_map[rxidx] = 0; 2950 bus_dmamap_sync(sc->bge_dmatag, dmamap, 0, 2951 dmamap->dm_mapsize, BUS_DMASYNC_POSTREAD); 2952 bus_dmamap_unload(sc->bge_dmatag, dmamap); 2953 if (cur_rx->bge_flags & BGE_RXBDFLAG_ERROR) { 2954 ifp->if_ierrors++; 2955 bge_newbuf_std(sc, sc->bge_std, m, dmamap); 2956 continue; 2957 } 2958 if (bge_newbuf_std(sc, sc->bge_std, 2959 NULL, dmamap) == ENOBUFS) { 2960 ifp->if_ierrors++; 2961 bge_newbuf_std(sc, sc->bge_std, m, dmamap); 2962 continue; 2963 } 2964 } 2965 2966 ifp->if_ipackets++; 2967 #ifndef __NO_STRICT_ALIGNMENT 2968 /* 2969 * XXX: if the 5701 PCIX-Rx-DMA workaround is in effect, 2970 * the Rx buffer has the layer-2 header unaligned. 2971 * If our CPU requires alignment, re-align by copying. 2972 */ 2973 if (sc->bge_rx_alignment_bug) { 2974 memmove(mtod(m, void *) + ETHER_ALIGN, m->m_data, 2975 cur_rx->bge_len); 2976 m->m_data += ETHER_ALIGN; 2977 } 2978 #endif 2979 2980 m->m_pkthdr.len = m->m_len = cur_rx->bge_len - ETHER_CRC_LEN; 2981 m->m_pkthdr.rcvif = ifp; 2982 2983 #if NBPFILTER > 0 2984 /* 2985 * Handle BPF listeners. Let the BPF user see the packet. 2986 */ 2987 if (ifp->if_bpf) 2988 bpf_mtap(ifp->if_bpf, m); 2989 #endif 2990 2991 m->m_pkthdr.csum_flags = M_CSUM_IPv4; 2992 2993 if ((cur_rx->bge_ip_csum ^ 0xffff) != 0) 2994 m->m_pkthdr.csum_flags |= M_CSUM_IPv4_BAD; 2995 /* 2996 * Rx transport checksum-offload may also 2997 * have bugs with packets which, when transmitted, 2998 * were `runts' requiring padding. 2999 */ 3000 if (cur_rx->bge_flags & BGE_RXBDFLAG_TCP_UDP_CSUM && 3001 (/* (sc->_bge_quirks & BGE_QUIRK_SHORT_CKSUM_BUG) == 0 ||*/ 3002 m->m_pkthdr.len >= ETHER_MIN_NOPAD)) { 3003 m->m_pkthdr.csum_data = 3004 cur_rx->bge_tcp_udp_csum; 3005 m->m_pkthdr.csum_flags |= 3006 (M_CSUM_TCPv4|M_CSUM_UDPv4| 3007 M_CSUM_DATA|M_CSUM_NO_PSEUDOHDR); 3008 } 3009 3010 /* 3011 * If we received a packet with a vlan tag, pass it 3012 * to vlan_input() instead of ether_input(). 3013 */ 3014 if (cur_rx->bge_flags & BGE_RXBDFLAG_VLAN_TAG) 3015 VLAN_INPUT_TAG(ifp, m, cur_rx->bge_vlan_tag, continue); 3016 3017 (*ifp->if_input)(ifp, m); 3018 } 3019 3020 CSR_WRITE_4(sc, BGE_MBX_RX_CONS0_LO, sc->bge_rx_saved_considx); 3021 if (stdcnt) 3022 CSR_WRITE_4(sc, BGE_MBX_RX_STD_PROD_LO, sc->bge_std); 3023 if (jumbocnt) 3024 CSR_WRITE_4(sc, BGE_MBX_RX_JUMBO_PROD_LO, sc->bge_jumbo); 3025 } 3026 3027 static void 3028 bge_txeof(struct bge_softc *sc) 3029 { 3030 struct bge_tx_bd *cur_tx = NULL; 3031 struct ifnet *ifp; 3032 struct txdmamap_pool_entry *dma; 3033 bus_addr_t offset, toff; 3034 bus_size_t tlen; 3035 int tosync; 3036 struct mbuf *m; 3037 3038 ifp = &sc->ethercom.ec_if; 3039 3040 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 3041 offsetof(struct bge_ring_data, bge_status_block), 3042 sizeof (struct bge_status_block), 3043 BUS_DMASYNC_POSTREAD); 3044 3045 offset = offsetof(struct bge_ring_data, bge_tx_ring); 3046 tosync = sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx - 3047 sc->bge_tx_saved_considx; 3048 3049 toff = offset + (sc->bge_tx_saved_considx * sizeof (struct bge_tx_bd)); 3050 3051 if (tosync < 0) { 3052 tlen = (BGE_TX_RING_CNT - sc->bge_tx_saved_considx) * 3053 sizeof (struct bge_tx_bd); 3054 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 3055 toff, tlen, BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 3056 tosync = -tosync; 3057 } 3058 3059 bus_dmamap_sync(sc->bge_dmatag, sc->bge_ring_map, 3060 offset, tosync * sizeof (struct bge_tx_bd), 3061 BUS_DMASYNC_POSTREAD|BUS_DMASYNC_POSTWRITE); 3062 3063 /* 3064 * Go through our tx ring and free mbufs for those 3065 * frames that have been sent. 3066 */ 3067 while (sc->bge_tx_saved_considx != 3068 sc->bge_rdata->bge_status_block.bge_idx[0].bge_tx_cons_idx) { 3069 u_int32_t idx = 0; 3070 3071 idx = sc->bge_tx_saved_considx; 3072 cur_tx = &sc->bge_rdata->bge_tx_ring[idx]; 3073 if (cur_tx->bge_flags & BGE_TXBDFLAG_END) 3074 ifp->if_opackets++; 3075 m = sc->bge_cdata.bge_tx_chain[idx]; 3076 if (m != NULL) { 3077 sc->bge_cdata.bge_tx_chain[idx] = NULL; 3078 dma = sc->txdma[idx]; 3079 bus_dmamap_sync(sc->bge_dmatag, dma->dmamap, 0, 3080 dma->dmamap->dm_mapsize, BUS_DMASYNC_POSTWRITE); 3081 bus_dmamap_unload(sc->bge_dmatag, dma->dmamap); 3082 SLIST_INSERT_HEAD(&sc->txdma_list, dma, link); 3083 sc->txdma[idx] = NULL; 3084 3085 m_freem(m); 3086 } 3087 sc->bge_txcnt--; 3088 BGE_INC(sc->bge_tx_saved_considx, BGE_TX_RING_CNT); 3089 ifp->if_timer = 0; 3090 } 3091 3092 if (cur_tx != NULL) 3093 ifp->if_flags &= ~IFF_OACTIVE; 3094 } 3095 3096 static int 3097 bge_intr(void *xsc) 3098 { 3099 struct bge_softc *sc; 3100 struct ifnet *ifp; 3101 3102 sc = xsc; 3103 ifp = &sc->ethercom.ec_if; 3104 3105 #ifdef notdef 3106 /* Avoid this for now -- checking this register is expensive. */ 3107 /* Make sure this is really our interrupt. */ 3108 if (!(CSR_READ_4(sc, BGE_MISC_LOCAL_CTL) & BGE_MLC_INTR_STATE)) 3109 return (0); 3110 #endif 3111 /* Ack interrupt and stop others from occuring. */ 3112 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); 3113 3114 BGE_EVCNT_INCR(sc->bge_ev_intr); 3115 3116 /* 3117 * Process link state changes. 3118 * Grrr. The link status word in the status block does 3119 * not work correctly on the BCM5700 rev AX and BX chips, 3120 * according to all available information. Hence, we have 3121 * to enable MII interrupts in order to properly obtain 3122 * async link changes. Unfortunately, this also means that 3123 * we have to read the MAC status register to detect link 3124 * changes, thereby adding an additional register access to 3125 * the interrupt handler. 3126 */ 3127 3128 if (sc->bge_quirks & BGE_QUIRK_LINK_STATE_BROKEN) { 3129 u_int32_t status; 3130 3131 status = CSR_READ_4(sc, BGE_MAC_STS); 3132 if (status & BGE_MACSTAT_MI_INTERRUPT) { 3133 sc->bge_link = 0; 3134 callout_stop(&sc->bge_timeout); 3135 bge_tick(sc); 3136 /* Clear the interrupt */ 3137 CSR_WRITE_4(sc, BGE_MAC_EVT_ENB, 3138 BGE_EVTENB_MI_INTERRUPT); 3139 bge_miibus_readreg(&sc->bge_dev, 1, BRGPHY_MII_ISR); 3140 bge_miibus_writereg(&sc->bge_dev, 1, BRGPHY_MII_IMR, 3141 BRGPHY_INTRS); 3142 } 3143 } else { 3144 if (sc->bge_rdata->bge_status_block.bge_status & 3145 BGE_STATFLAG_LINKSTATE_CHANGED) { 3146 sc->bge_link = 0; 3147 callout_stop(&sc->bge_timeout); 3148 bge_tick(sc); 3149 /* Clear the interrupt */ 3150 CSR_WRITE_4(sc, BGE_MAC_STS, BGE_MACSTAT_SYNC_CHANGED| 3151 BGE_MACSTAT_CFG_CHANGED|BGE_MACSTAT_MI_COMPLETE| 3152 BGE_MACSTAT_LINK_CHANGED); 3153 } 3154 } 3155 3156 if (ifp->if_flags & IFF_RUNNING) { 3157 /* Check RX return ring producer/consumer */ 3158 bge_rxeof(sc); 3159 3160 /* Check TX ring producer/consumer */ 3161 bge_txeof(sc); 3162 } 3163 3164 if (sc->bge_pending_rxintr_change) { 3165 uint32_t rx_ticks = sc->bge_rx_coal_ticks; 3166 uint32_t rx_bds = sc->bge_rx_max_coal_bds; 3167 uint32_t junk; 3168 3169 CSR_WRITE_4(sc, BGE_HCC_RX_COAL_TICKS, rx_ticks); 3170 DELAY(10); 3171 junk = CSR_READ_4(sc, BGE_HCC_RX_COAL_TICKS); 3172 3173 CSR_WRITE_4(sc, BGE_HCC_RX_MAX_COAL_BDS, rx_bds); 3174 DELAY(10); 3175 junk = CSR_READ_4(sc, BGE_HCC_RX_MAX_COAL_BDS); 3176 3177 sc->bge_pending_rxintr_change = 0; 3178 } 3179 bge_handle_events(sc); 3180 3181 /* Re-enable interrupts. */ 3182 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); 3183 3184 if (ifp->if_flags & IFF_RUNNING && !IFQ_IS_EMPTY(&ifp->if_snd)) 3185 bge_start(ifp); 3186 3187 return (1); 3188 } 3189 3190 static void 3191 bge_tick(void *xsc) 3192 { 3193 struct bge_softc *sc = xsc; 3194 struct mii_data *mii = &sc->bge_mii; 3195 struct ifmedia *ifm = NULL; 3196 struct ifnet *ifp = &sc->ethercom.ec_if; 3197 int s; 3198 3199 s = splnet(); 3200 3201 bge_stats_update(sc); 3202 callout_reset(&sc->bge_timeout, hz, bge_tick, sc); 3203 if (sc->bge_link) { 3204 splx(s); 3205 return; 3206 } 3207 3208 if (sc->bge_tbi) { 3209 ifm = &sc->bge_ifmedia; 3210 if (CSR_READ_4(sc, BGE_MAC_STS) & 3211 BGE_MACSTAT_TBI_PCS_SYNCHED) { 3212 sc->bge_link++; 3213 CSR_WRITE_4(sc, BGE_MAC_STS, 0xFFFFFFFF); 3214 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 3215 bge_start(ifp); 3216 } 3217 splx(s); 3218 return; 3219 } 3220 3221 mii_tick(mii); 3222 3223 if (!sc->bge_link && mii->mii_media_status & IFM_ACTIVE && 3224 IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { 3225 sc->bge_link++; 3226 if (!IFQ_IS_EMPTY(&ifp->if_snd)) 3227 bge_start(ifp); 3228 } 3229 3230 splx(s); 3231 } 3232 3233 static void 3234 bge_stats_update(struct bge_softc *sc) 3235 { 3236 struct ifnet *ifp = &sc->ethercom.ec_if; 3237 bus_size_t stats = BGE_MEMWIN_START + BGE_STATS_BLOCK; 3238 bus_size_t rstats = BGE_RX_STATS; 3239 3240 #define READ_RSTAT(sc, stats, stat) \ 3241 CSR_READ_4(sc, stats + offsetof(struct bge_mac_stats_regs, stat)) 3242 3243 if (sc->bge_quirks & BGE_QUIRK_5705_CORE) { 3244 ifp->if_collisions += 3245 READ_RSTAT(sc, rstats, dot3StatsSingleCollisionFrames) + 3246 READ_RSTAT(sc, rstats, dot3StatsMultipleCollisionFrames) + 3247 READ_RSTAT(sc, rstats, dot3StatsExcessiveCollisions) + 3248 READ_RSTAT(sc, rstats, dot3StatsLateCollisions); 3249 3250 BGE_EVCNT_ADD(sc->bge_ev_tx_xoff, 3251 READ_RSTAT(sc, rstats, outXoffSent)); 3252 BGE_EVCNT_ADD(sc->bge_ev_tx_xon, 3253 READ_RSTAT(sc, rstats, outXonSent)); 3254 BGE_EVCNT_ADD(sc->bge_ev_rx_xoff, 3255 READ_RSTAT(sc, rstats, xoffPauseFramesReceived)); 3256 BGE_EVCNT_ADD(sc->bge_ev_rx_xon, 3257 READ_RSTAT(sc, rstats, xonPauseFramesReceived)); 3258 BGE_EVCNT_ADD(sc->bge_ev_rx_macctl, 3259 READ_RSTAT(sc, rstats, macControlFramesReceived)); 3260 BGE_EVCNT_ADD(sc->bge_ev_xoffentered, 3261 READ_RSTAT(sc, rstats, xoffStateEntered)); 3262 return; 3263 } 3264 3265 #undef READ_RSTAT 3266 #define READ_STAT(sc, stats, stat) \ 3267 CSR_READ_4(sc, stats + offsetof(struct bge_stats, stat)) 3268 3269 ifp->if_collisions += 3270 (READ_STAT(sc, stats, dot3StatsSingleCollisionFrames.bge_addr_lo) + 3271 READ_STAT(sc, stats, dot3StatsMultipleCollisionFrames.bge_addr_lo) + 3272 READ_STAT(sc, stats, dot3StatsExcessiveCollisions.bge_addr_lo) + 3273 READ_STAT(sc, stats, dot3StatsLateCollisions.bge_addr_lo)) - 3274 ifp->if_collisions; 3275 3276 BGE_EVCNT_UPD(sc->bge_ev_tx_xoff, 3277 READ_STAT(sc, stats, outXoffSent.bge_addr_lo)); 3278 BGE_EVCNT_UPD(sc->bge_ev_tx_xon, 3279 READ_STAT(sc, stats, outXonSent.bge_addr_lo)); 3280 BGE_EVCNT_UPD(sc->bge_ev_rx_xoff, 3281 READ_STAT(sc, stats, 3282 xoffPauseFramesReceived.bge_addr_lo)); 3283 BGE_EVCNT_UPD(sc->bge_ev_rx_xon, 3284 READ_STAT(sc, stats, xonPauseFramesReceived.bge_addr_lo)); 3285 BGE_EVCNT_UPD(sc->bge_ev_rx_macctl, 3286 READ_STAT(sc, stats, 3287 macControlFramesReceived.bge_addr_lo)); 3288 BGE_EVCNT_UPD(sc->bge_ev_xoffentered, 3289 READ_STAT(sc, stats, xoffStateEntered.bge_addr_lo)); 3290 3291 #undef READ_STAT 3292 3293 #ifdef notdef 3294 ifp->if_collisions += 3295 (sc->bge_rdata->bge_info.bge_stats.dot3StatsSingleCollisionFrames + 3296 sc->bge_rdata->bge_info.bge_stats.dot3StatsMultipleCollisionFrames + 3297 sc->bge_rdata->bge_info.bge_stats.dot3StatsExcessiveCollisions + 3298 sc->bge_rdata->bge_info.bge_stats.dot3StatsLateCollisions) - 3299 ifp->if_collisions; 3300 #endif 3301 } 3302 3303 /* 3304 * Pad outbound frame to ETHER_MIN_NOPAD for an unusual reason. 3305 * The bge hardware will pad out Tx runts to ETHER_MIN_NOPAD, 3306 * but when such padded frames employ the bge IP/TCP checksum offload, 3307 * the hardware checksum assist gives incorrect results (possibly 3308 * from incorporating its own padding into the UDP/TCP checksum; who knows). 3309 * If we pad such runts with zeros, the onboard checksum comes out correct. 3310 */ 3311 static inline int 3312 bge_cksum_pad(struct mbuf *pkt) 3313 { 3314 struct mbuf *last = NULL; 3315 int padlen; 3316 3317 padlen = ETHER_MIN_NOPAD - pkt->m_pkthdr.len; 3318 3319 /* if there's only the packet-header and we can pad there, use it. */ 3320 if (pkt->m_pkthdr.len == pkt->m_len && 3321 M_TRAILINGSPACE(pkt) >= padlen) { 3322 last = pkt; 3323 } else { 3324 /* 3325 * Walk packet chain to find last mbuf. We will either 3326 * pad there, or append a new mbuf and pad it 3327 * (thus perhaps avoiding the bcm5700 dma-min bug). 3328 */ 3329 for (last = pkt; last->m_next != NULL; last = last->m_next) { 3330 continue; /* do nothing */ 3331 } 3332 3333 /* `last' now points to last in chain. */ 3334 if (M_TRAILINGSPACE(last) < padlen) { 3335 /* Allocate new empty mbuf, pad it. Compact later. */ 3336 struct mbuf *n; 3337 MGET(n, M_DONTWAIT, MT_DATA); 3338 n->m_len = 0; 3339 last->m_next = n; 3340 last = n; 3341 } 3342 } 3343 3344 KDASSERT(!M_READONLY(last)); 3345 KDASSERT(M_TRAILINGSPACE(last) >= padlen); 3346 3347 /* Now zero the pad area, to avoid the bge cksum-assist bug */ 3348 memset(mtod(last, char *) + last->m_len, 0, padlen); 3349 last->m_len += padlen; 3350 pkt->m_pkthdr.len += padlen; 3351 return 0; 3352 } 3353 3354 /* 3355 * Compact outbound packets to avoid bug with DMA segments less than 8 bytes. 3356 */ 3357 static inline int 3358 bge_compact_dma_runt(struct mbuf *pkt) 3359 { 3360 struct mbuf *m, *prev; 3361 int totlen, prevlen; 3362 3363 prev = NULL; 3364 totlen = 0; 3365 prevlen = -1; 3366 3367 for (m = pkt; m != NULL; prev = m,m = m->m_next) { 3368 int mlen = m->m_len; 3369 int shortfall = 8 - mlen ; 3370 3371 totlen += mlen; 3372 if (mlen == 0) { 3373 continue; 3374 } 3375 if (mlen >= 8) 3376 continue; 3377 3378 /* If we get here, mbuf data is too small for DMA engine. 3379 * Try to fix by shuffling data to prev or next in chain. 3380 * If that fails, do a compacting deep-copy of the whole chain. 3381 */ 3382 3383 /* Internal frag. If fits in prev, copy it there. */ 3384 if (prev && M_TRAILINGSPACE(prev) >= m->m_len) { 3385 memcpy(prev->m_data + prev->m_len, m->m_data, mlen); 3386 prev->m_len += mlen; 3387 m->m_len = 0; 3388 /* XXX stitch chain */ 3389 prev->m_next = m_free(m); 3390 m = prev; 3391 continue; 3392 } 3393 else if (m->m_next != NULL && 3394 M_TRAILINGSPACE(m) >= shortfall && 3395 m->m_next->m_len >= (8 + shortfall)) { 3396 /* m is writable and have enough data in next, pull up. */ 3397 3398 memcpy(m->m_data + m->m_len, m->m_next->m_data, 3399 shortfall); 3400 m->m_len += shortfall; 3401 m->m_next->m_len -= shortfall; 3402 m->m_next->m_data += shortfall; 3403 } 3404 else if (m->m_next == NULL || 1) { 3405 /* Got a runt at the very end of the packet. 3406 * borrow data from the tail of the preceding mbuf and 3407 * update its length in-place. (The original data is still 3408 * valid, so we can do this even if prev is not writable.) 3409 */ 3410 3411 /* if we'd make prev a runt, just move all of its data. */ 3412 KASSERT(prev != NULL /*, ("runt but null PREV")*/); 3413 KASSERT(prev->m_len >= 8 /*, ("runt prev")*/); 3414 3415 if ((prev->m_len - shortfall) < 8) 3416 shortfall = prev->m_len; 3417 3418 #ifdef notyet /* just do the safe slow thing for now */ 3419 if (!M_READONLY(m)) { 3420 if (M_LEADINGSPACE(m) < shorfall) { 3421 void *m_dat; 3422 m_dat = (m->m_flags & M_PKTHDR) ? 3423 m->m_pktdat : m->dat; 3424 memmove(m_dat, mtod(m, void*), m->m_len); 3425 m->m_data = m_dat; 3426 } 3427 } else 3428 #endif /* just do the safe slow thing */ 3429 { 3430 struct mbuf * n = NULL; 3431 int newprevlen = prev->m_len - shortfall; 3432 3433 MGET(n, M_NOWAIT, MT_DATA); 3434 if (n == NULL) 3435 return ENOBUFS; 3436 KASSERT(m->m_len + shortfall < MLEN 3437 /*, 3438 ("runt %d +prev %d too big\n", m->m_len, shortfall)*/); 3439 3440 /* first copy the data we're stealing from prev */ 3441 memcpy(n->m_data, prev->m_data + newprevlen, 3442 shortfall); 3443 3444 /* update prev->m_len accordingly */ 3445 prev->m_len -= shortfall; 3446 3447 /* copy data from runt m */ 3448 memcpy(n->m_data + shortfall, m->m_data, 3449 m->m_len); 3450 3451 /* n holds what we stole from prev, plus m */ 3452 n->m_len = shortfall + m->m_len; 3453 3454 /* stitch n into chain and free m */ 3455 n->m_next = m->m_next; 3456 prev->m_next = n; 3457 /* KASSERT(m->m_next == NULL); */ 3458 m->m_next = NULL; 3459 m_free(m); 3460 m = n; /* for continuing loop */ 3461 } 3462 } 3463 prevlen = m->m_len; 3464 } 3465 return 0; 3466 } 3467 3468 /* 3469 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data 3470 * pointers to descriptors. 3471 */ 3472 static int 3473 bge_encap(struct bge_softc *sc, struct mbuf *m_head, u_int32_t *txidx) 3474 { 3475 struct bge_tx_bd *f = NULL; 3476 u_int32_t frag, cur; 3477 u_int16_t csum_flags = 0; 3478 u_int16_t txbd_tso_flags = 0; 3479 struct txdmamap_pool_entry *dma; 3480 bus_dmamap_t dmamap; 3481 int i = 0; 3482 struct m_tag *mtag; 3483 int use_tso, maxsegsize, error; 3484 3485 cur = frag = *txidx; 3486 3487 if (m_head->m_pkthdr.csum_flags) { 3488 if (m_head->m_pkthdr.csum_flags & M_CSUM_IPv4) 3489 csum_flags |= BGE_TXBDFLAG_IP_CSUM; 3490 if (m_head->m_pkthdr.csum_flags & (M_CSUM_TCPv4|M_CSUM_UDPv4)) 3491 csum_flags |= BGE_TXBDFLAG_TCP_UDP_CSUM; 3492 } 3493 3494 /* 3495 * If we were asked to do an outboard checksum, and the NIC 3496 * has the bug where it sometimes adds in the Ethernet padding, 3497 * explicitly pad with zeros so the cksum will be correct either way. 3498 * (For now, do this for all chip versions, until newer 3499 * are confirmed to not require the workaround.) 3500 */ 3501 if ((csum_flags & BGE_TXBDFLAG_TCP_UDP_CSUM) == 0 || 3502 #ifdef notyet 3503 (sc->bge_quirks & BGE_QUIRK_SHORT_CKSUM_BUG) == 0 || 3504 #endif 3505 m_head->m_pkthdr.len >= ETHER_MIN_NOPAD) 3506 goto check_dma_bug; 3507 3508 if (bge_cksum_pad(m_head) != 0) { 3509 return ENOBUFS; 3510 } 3511 3512 check_dma_bug: 3513 if (!(sc->bge_quirks & BGE_QUIRK_5700_SMALLDMA)) 3514 goto doit; 3515 /* 3516 * bcm5700 Revision B silicon cannot handle DMA descriptors with 3517 * less than eight bytes. If we encounter a teeny mbuf 3518 * at the end of a chain, we can pad. Otherwise, copy. 3519 */ 3520 if (bge_compact_dma_runt(m_head) != 0) 3521 return ENOBUFS; 3522 3523 doit: 3524 dma = SLIST_FIRST(&sc->txdma_list); 3525 if (dma == NULL) 3526 return ENOBUFS; 3527 dmamap = dma->dmamap; 3528 3529 /* 3530 * Set up any necessary TSO state before we start packing... 3531 */ 3532 use_tso = (m_head->m_pkthdr.csum_flags & M_CSUM_TSOv4) != 0; 3533 if (!use_tso) { 3534 maxsegsize = 0; 3535 } else { /* TSO setup */ 3536 unsigned mss; 3537 struct ether_header *eh; 3538 unsigned ip_tcp_hlen, iptcp_opt_words, tcp_seg_flags, offset; 3539 struct mbuf * m0 = m_head; 3540 struct ip *ip; 3541 struct tcphdr *th; 3542 int iphl, hlen; 3543 3544 /* 3545 * XXX It would be nice if the mbuf pkthdr had offset 3546 * fields for the protocol headers. 3547 */ 3548 3549 eh = mtod(m0, struct ether_header *); 3550 switch (htons(eh->ether_type)) { 3551 case ETHERTYPE_IP: 3552 offset = ETHER_HDR_LEN; 3553 break; 3554 3555 case ETHERTYPE_VLAN: 3556 offset = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN; 3557 break; 3558 3559 default: 3560 /* 3561 * Don't support this protocol or encapsulation. 3562 */ 3563 return (ENOBUFS); 3564 } 3565 3566 /* 3567 * TCP/IP headers are in the first mbuf; we can do 3568 * this the easy way. 3569 */ 3570 iphl = M_CSUM_DATA_IPv4_IPHL(m0->m_pkthdr.csum_data); 3571 hlen = iphl + offset; 3572 if (__predict_false(m0->m_len < 3573 (hlen + sizeof(struct tcphdr)))) { 3574 3575 printf("TSO: hard case m0->m_len == %d <" 3576 " ip/tcp hlen %zd, not handled yet\n", 3577 m0->m_len, hlen+ sizeof(struct tcphdr)); 3578 #ifdef NOTYET 3579 /* 3580 * XXX jonathan (at) NetBSD.org: untested. 3581 * how to force this branch to be taken? 3582 */ 3583 BGE_EVCNT_INCR(&sc->sc_ev_txtsopain); 3584 3585 m_copydata(m0, offset, sizeof(ip), &ip); 3586 m_copydata(m0, hlen, sizeof(th), &th); 3587 3588 ip.ip_len = 0; 3589 3590 m_copyback(m0, hlen + offsetof(struct ip, ip_len), 3591 sizeof(ip.ip_len), &ip.ip_len); 3592 3593 th.th_sum = in_cksum_phdr(ip.ip_src.s_addr, 3594 ip.ip_dst.s_addr, htons(IPPROTO_TCP)); 3595 3596 m_copyback(m0, hlen + offsetof(struct tcphdr, th_sum), 3597 sizeof(th.th_sum), &th.th_sum); 3598 3599 hlen += th.th_off << 2; 3600 iptcp_opt_words = hlen; 3601 #else 3602 /* 3603 * if_wm "hard" case not yet supported, can we not 3604 * mandate it out of existence? 3605 */ 3606 (void) ip; (void)th; (void) ip_tcp_hlen; 3607 3608 return ENOBUFS; 3609 #endif 3610 } else { 3611 ip = (struct ip *) (mtod(m0, char *) + offset); 3612 th = (struct tcphdr *) (mtod(m0, char *) + hlen); 3613 ip_tcp_hlen = iphl + (th->th_off << 2); 3614 3615 /* Total IP/TCP options, in 32-bit words */ 3616 iptcp_opt_words = (ip_tcp_hlen 3617 - sizeof(struct tcphdr) 3618 - sizeof(struct ip)) >> 2; 3619 } 3620 if (BGE_IS_5750_OR_BEYOND(sc)) { 3621 th->th_sum = 0; 3622 csum_flags &= ~(BGE_TXBDFLAG_TCP_UDP_CSUM); 3623 } else { 3624 /* 3625 * XXX jonathan (at) NetBSD.org: 5705 untested. 3626 * Requires TSO firmware patch for 5701/5703/5704. 3627 */ 3628 th->th_sum = in_cksum_phdr(ip->ip_src.s_addr, 3629 ip->ip_dst.s_addr, htons(IPPROTO_TCP)); 3630 } 3631 3632 mss = m_head->m_pkthdr.segsz; 3633 txbd_tso_flags |= 3634 BGE_TXBDFLAG_CPU_PRE_DMA | 3635 BGE_TXBDFLAG_CPU_POST_DMA; 3636 3637 /* 3638 * Our NIC TSO-assist assumes TSO has standard, optionless 3639 * IPv4 and TCP headers, which total 40 bytes. By default, 3640 * the NIC copies 40 bytes of IP/TCP header from the 3641 * supplied header into the IP/TCP header portion of 3642 * each post-TSO-segment. If the supplied packet has IP or 3643 * TCP options, we need to tell the NIC to copy those extra 3644 * bytes into each post-TSO header, in addition to the normal 3645 * 40-byte IP/TCP header (and to leave space accordingly). 3646 * Unfortunately, the driver encoding of option length 3647 * varies across different ASIC families. 3648 */ 3649 tcp_seg_flags = 0; 3650 if (iptcp_opt_words) { 3651 if ( BGE_IS_5705_OR_BEYOND(sc)) { 3652 tcp_seg_flags = 3653 iptcp_opt_words << 11; 3654 } else { 3655 txbd_tso_flags |= 3656 iptcp_opt_words << 12; 3657 } 3658 } 3659 maxsegsize = mss | tcp_seg_flags; 3660 ip->ip_len = htons(mss + ip_tcp_hlen); 3661 3662 } /* TSO setup */ 3663 3664 /* 3665 * Start packing the mbufs in this chain into 3666 * the fragment pointers. Stop when we run out 3667 * of fragments or hit the end of the mbuf chain. 3668 */ 3669 error = bus_dmamap_load_mbuf(sc->bge_dmatag, dmamap, m_head, 3670 BUS_DMA_NOWAIT); 3671 if (error) { 3672 return(ENOBUFS); 3673 } 3674 /* 3675 * Sanity check: avoid coming within 16 descriptors 3676 * of the end of the ring. 3677 */ 3678 if (dmamap->dm_nsegs > (BGE_TX_RING_CNT - sc->bge_txcnt - 16)) { 3679 BGE_TSO_PRINTF(("%s: " 3680 " dmamap_load_mbuf too close to ring wrap\n", 3681 sc->bge_dev.dv_xname)); 3682 goto fail_unload; 3683 } 3684 3685 mtag = sc->ethercom.ec_nvlans ? 3686 m_tag_find(m_head, PACKET_TAG_VLAN, NULL) : NULL; 3687 3688 3689 /* Iterate over dmap-map fragments. */ 3690 for (i = 0; i < dmamap->dm_nsegs; i++) { 3691 f = &sc->bge_rdata->bge_tx_ring[frag]; 3692 if (sc->bge_cdata.bge_tx_chain[frag] != NULL) 3693 break; 3694 3695 bge_set_hostaddr(&f->bge_addr, dmamap->dm_segs[i].ds_addr); 3696 f->bge_len = dmamap->dm_segs[i].ds_len; 3697 3698 /* 3699 * For 5751 and follow-ons, for TSO we must turn 3700 * off checksum-assist flag in the tx-descr, and 3701 * supply the ASIC-revision-specific encoding 3702 * of TSO flags and segsize. 3703 */ 3704 if (use_tso) { 3705 if (BGE_IS_5750_OR_BEYOND(sc) || i == 0) { 3706 f->bge_rsvd = maxsegsize; 3707 f->bge_flags = csum_flags | txbd_tso_flags; 3708 } else { 3709 f->bge_rsvd = 0; 3710 f->bge_flags = 3711 (csum_flags | txbd_tso_flags) & 0x0fff; 3712 } 3713 } else { 3714 f->bge_rsvd = 0; 3715 f->bge_flags = csum_flags; 3716 } 3717 3718 if (mtag != NULL) { 3719 f->bge_flags |= BGE_TXBDFLAG_VLAN_TAG; 3720 f->bge_vlan_tag = VLAN_TAG_VALUE(mtag); 3721 } else { 3722 f->bge_vlan_tag = 0; 3723 } 3724 cur = frag; 3725 BGE_INC(frag, BGE_TX_RING_CNT); 3726 } 3727 3728 if (i < dmamap->dm_nsegs) { 3729 BGE_TSO_PRINTF(("%s: reached %d < dm_nsegs %d\n", 3730 sc->bge_dev.dv_xname, i, dmamap->dm_nsegs)); 3731 goto fail_unload; 3732 } 3733 3734 bus_dmamap_sync(sc->bge_dmatag, dmamap, 0, dmamap->dm_mapsize, 3735 BUS_DMASYNC_PREWRITE); 3736 3737 if (frag == sc->bge_tx_saved_considx) { 3738 BGE_TSO_PRINTF(("%s: frag %d = wrapped id %d?\n", 3739 sc->bge_dev.dv_xname, frag, sc->bge_tx_saved_considx)); 3740 3741 goto fail_unload; 3742 } 3743 3744 sc->bge_rdata->bge_tx_ring[cur].bge_flags |= BGE_TXBDFLAG_END; 3745 sc->bge_cdata.bge_tx_chain[cur] = m_head; 3746 SLIST_REMOVE_HEAD(&sc->txdma_list, link); 3747 sc->txdma[cur] = dma; 3748 sc->bge_txcnt += dmamap->dm_nsegs; 3749 3750 *txidx = frag; 3751 3752 return(0); 3753 3754 fail_unload: 3755 bus_dmamap_unload(sc->bge_dmatag, dmamap); 3756 3757 return ENOBUFS; 3758 } 3759 3760 /* 3761 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 3762 * to the mbuf data regions directly in the transmit descriptors. 3763 */ 3764 static void 3765 bge_start(struct ifnet *ifp) 3766 { 3767 struct bge_softc *sc; 3768 struct mbuf *m_head = NULL; 3769 u_int32_t prodidx; 3770 int pkts = 0; 3771 3772 sc = ifp->if_softc; 3773 3774 if (!sc->bge_link && ifp->if_snd.ifq_len < 10) 3775 return; 3776 3777 prodidx = sc->bge_tx_prodidx; 3778 3779 while(sc->bge_cdata.bge_tx_chain[prodidx] == NULL) { 3780 IFQ_POLL(&ifp->if_snd, m_head); 3781 if (m_head == NULL) 3782 break; 3783 3784 #if 0 3785 /* 3786 * XXX 3787 * safety overkill. If this is a fragmented packet chain 3788 * with delayed TCP/UDP checksums, then only encapsulate 3789 * it if we have enough descriptors to handle the entire 3790 * chain at once. 3791 * (paranoia -- may not actually be needed) 3792 */ 3793 if (m_head->m_flags & M_FIRSTFRAG && 3794 m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) { 3795 if ((BGE_TX_RING_CNT - sc->bge_txcnt) < 3796 M_CSUM_DATA_IPv4_OFFSET(m_head->m_pkthdr.csum_data) + 16) { 3797 ifp->if_flags |= IFF_OACTIVE; 3798 break; 3799 } 3800 } 3801 #endif 3802 3803 /* 3804 * Pack the data into the transmit ring. If we 3805 * don't have room, set the OACTIVE flag and wait 3806 * for the NIC to drain the ring. 3807 */ 3808 if (bge_encap(sc, m_head, &prodidx)) { 3809 printf("bge: failed on len %d?\n", m_head->m_pkthdr.len); 3810 ifp->if_flags |= IFF_OACTIVE; 3811 break; 3812 } 3813 3814 /* now we are committed to transmit the packet */ 3815 IFQ_DEQUEUE(&ifp->if_snd, m_head); 3816 pkts++; 3817 3818 #if NBPFILTER > 0 3819 /* 3820 * If there's a BPF listener, bounce a copy of this frame 3821 * to him. 3822 */ 3823 if (ifp->if_bpf) 3824 bpf_mtap(ifp->if_bpf, m_head); 3825 #endif 3826 } 3827 if (pkts == 0) 3828 return; 3829 3830 /* Transmit */ 3831 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); 3832 if (sc->bge_quirks & BGE_QUIRK_PRODUCER_BUG) /* 5700 b2 errata */ 3833 CSR_WRITE_4(sc, BGE_MBX_TX_HOST_PROD0_LO, prodidx); 3834 3835 sc->bge_tx_prodidx = prodidx; 3836 3837 /* 3838 * Set a timeout in case the chip goes out to lunch. 3839 */ 3840 ifp->if_timer = 5; 3841 } 3842 3843 static int 3844 bge_init(struct ifnet *ifp) 3845 { 3846 struct bge_softc *sc = ifp->if_softc; 3847 u_int16_t *m; 3848 int s, error; 3849 3850 s = splnet(); 3851 3852 ifp = &sc->ethercom.ec_if; 3853 3854 /* Cancel pending I/O and flush buffers. */ 3855 bge_stop(sc); 3856 bge_reset(sc); 3857 bge_chipinit(sc); 3858 3859 /* 3860 * Init the various state machines, ring 3861 * control blocks and firmware. 3862 */ 3863 error = bge_blockinit(sc); 3864 if (error != 0) { 3865 printf("%s: initialization error %d\n", sc->bge_dev.dv_xname, 3866 error); 3867 splx(s); 3868 return error; 3869 } 3870 3871 ifp = &sc->ethercom.ec_if; 3872 3873 /* Specify MTU. */ 3874 CSR_WRITE_4(sc, BGE_RX_MTU, ifp->if_mtu + 3875 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN); 3876 3877 /* Load our MAC address. */ 3878 m = (u_int16_t *)&(LLADDR(ifp->if_sadl)[0]); 3879 CSR_WRITE_4(sc, BGE_MAC_ADDR1_LO, htons(m[0])); 3880 CSR_WRITE_4(sc, BGE_MAC_ADDR1_HI, (htons(m[1]) << 16) | htons(m[2])); 3881 3882 /* Enable or disable promiscuous mode as needed. */ 3883 if (ifp->if_flags & IFF_PROMISC) { 3884 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); 3885 } else { 3886 BGE_CLRBIT(sc, BGE_RX_MODE, BGE_RXMODE_RX_PROMISC); 3887 } 3888 3889 /* Program multicast filter. */ 3890 bge_setmulti(sc); 3891 3892 /* Init RX ring. */ 3893 bge_init_rx_ring_std(sc); 3894 3895 /* Init jumbo RX ring. */ 3896 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) 3897 bge_init_rx_ring_jumbo(sc); 3898 3899 /* Init our RX return ring index */ 3900 sc->bge_rx_saved_considx = 0; 3901 3902 /* Init TX ring. */ 3903 bge_init_tx_ring(sc); 3904 3905 /* Turn on transmitter */ 3906 BGE_SETBIT(sc, BGE_TX_MODE, BGE_TXMODE_ENABLE); 3907 3908 /* Turn on receiver */ 3909 BGE_SETBIT(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); 3910 3911 CSR_WRITE_4(sc, BGE_MAX_RX_FRAME_LOWAT, 2); 3912 3913 /* Tell firmware we're alive. */ 3914 BGE_SETBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 3915 3916 /* Enable host interrupts. */ 3917 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_CLEAR_INTA); 3918 BGE_CLRBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); 3919 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 0); 3920 3921 bge_ifmedia_upd(ifp); 3922 3923 ifp->if_flags |= IFF_RUNNING; 3924 ifp->if_flags &= ~IFF_OACTIVE; 3925 3926 splx(s); 3927 3928 callout_reset(&sc->bge_timeout, hz, bge_tick, sc); 3929 3930 return 0; 3931 } 3932 3933 /* 3934 * Set media options. 3935 */ 3936 static int 3937 bge_ifmedia_upd(struct ifnet *ifp) 3938 { 3939 struct bge_softc *sc = ifp->if_softc; 3940 struct mii_data *mii = &sc->bge_mii; 3941 struct ifmedia *ifm = &sc->bge_ifmedia; 3942 3943 /* If this is a 1000baseX NIC, enable the TBI port. */ 3944 if (sc->bge_tbi) { 3945 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 3946 return(EINVAL); 3947 switch(IFM_SUBTYPE(ifm->ifm_media)) { 3948 case IFM_AUTO: 3949 break; 3950 case IFM_1000_SX: 3951 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { 3952 BGE_CLRBIT(sc, BGE_MAC_MODE, 3953 BGE_MACMODE_HALF_DUPLEX); 3954 } else { 3955 BGE_SETBIT(sc, BGE_MAC_MODE, 3956 BGE_MACMODE_HALF_DUPLEX); 3957 } 3958 break; 3959 default: 3960 return(EINVAL); 3961 } 3962 /* XXX 802.3x flow control for 1000BASE-SX */ 3963 return(0); 3964 } 3965 3966 sc->bge_link = 0; 3967 mii_mediachg(mii); 3968 3969 return(0); 3970 } 3971 3972 /* 3973 * Report current media status. 3974 */ 3975 static void 3976 bge_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 3977 { 3978 struct bge_softc *sc = ifp->if_softc; 3979 struct mii_data *mii = &sc->bge_mii; 3980 3981 if (sc->bge_tbi) { 3982 ifmr->ifm_status = IFM_AVALID; 3983 ifmr->ifm_active = IFM_ETHER; 3984 if (CSR_READ_4(sc, BGE_MAC_STS) & 3985 BGE_MACSTAT_TBI_PCS_SYNCHED) 3986 ifmr->ifm_status |= IFM_ACTIVE; 3987 ifmr->ifm_active |= IFM_1000_SX; 3988 if (CSR_READ_4(sc, BGE_MAC_MODE) & BGE_MACMODE_HALF_DUPLEX) 3989 ifmr->ifm_active |= IFM_HDX; 3990 else 3991 ifmr->ifm_active |= IFM_FDX; 3992 return; 3993 } 3994 3995 mii_pollstat(mii); 3996 ifmr->ifm_status = mii->mii_media_status; 3997 ifmr->ifm_active = (mii->mii_media_active & ~IFM_ETH_FMASK) | 3998 sc->bge_flowflags; 3999 } 4000 4001 static int 4002 bge_ioctl(struct ifnet *ifp, u_long command, void *data) 4003 { 4004 struct bge_softc *sc = ifp->if_softc; 4005 struct ifreq *ifr = (struct ifreq *) data; 4006 int s, error = 0; 4007 struct mii_data *mii; 4008 4009 s = splnet(); 4010 4011 switch(command) { 4012 case SIOCSIFFLAGS: 4013 if (ifp->if_flags & IFF_UP) { 4014 /* 4015 * If only the state of the PROMISC flag changed, 4016 * then just use the 'set promisc mode' command 4017 * instead of reinitializing the entire NIC. Doing 4018 * a full re-init means reloading the firmware and 4019 * waiting for it to start up, which may take a 4020 * second or two. 4021 */ 4022 if (ifp->if_flags & IFF_RUNNING && 4023 ifp->if_flags & IFF_PROMISC && 4024 !(sc->bge_if_flags & IFF_PROMISC)) { 4025 BGE_SETBIT(sc, BGE_RX_MODE, 4026 BGE_RXMODE_RX_PROMISC); 4027 } else if (ifp->if_flags & IFF_RUNNING && 4028 !(ifp->if_flags & IFF_PROMISC) && 4029 sc->bge_if_flags & IFF_PROMISC) { 4030 BGE_CLRBIT(sc, BGE_RX_MODE, 4031 BGE_RXMODE_RX_PROMISC); 4032 } else if (!(sc->bge_if_flags & IFF_UP)) 4033 bge_init(ifp); 4034 } else { 4035 if (ifp->if_flags & IFF_RUNNING) { 4036 bge_stop(sc); 4037 } 4038 } 4039 sc->bge_if_flags = ifp->if_flags; 4040 error = 0; 4041 break; 4042 case SIOCSIFMEDIA: 4043 /* XXX Flow control is not supported for 1000BASE-SX */ 4044 if (sc->bge_tbi) { 4045 ifr->ifr_media &= ~IFM_ETH_FMASK; 4046 sc->bge_flowflags = 0; 4047 } 4048 4049 /* Flow control requires full-duplex mode. */ 4050 if (IFM_SUBTYPE(ifr->ifr_media) == IFM_AUTO || 4051 (ifr->ifr_media & IFM_FDX) == 0) { 4052 ifr->ifr_media &= ~IFM_ETH_FMASK; 4053 } 4054 if (IFM_SUBTYPE(ifr->ifr_media) != IFM_AUTO) { 4055 if ((ifr->ifr_media & IFM_ETH_FMASK) == IFM_FLOW) { 4056 /* We an do both TXPAUSE and RXPAUSE. */ 4057 ifr->ifr_media |= 4058 IFM_ETH_TXPAUSE | IFM_ETH_RXPAUSE; 4059 } 4060 sc->bge_flowflags = ifr->ifr_media & IFM_ETH_FMASK; 4061 } 4062 /* FALLTHROUGH */ 4063 case SIOCGIFMEDIA: 4064 if (sc->bge_tbi) { 4065 error = ifmedia_ioctl(ifp, ifr, &sc->bge_ifmedia, 4066 command); 4067 } else { 4068 mii = &sc->bge_mii; 4069 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, 4070 command); 4071 } 4072 break; 4073 default: 4074 error = ether_ioctl(ifp, command, data); 4075 if (error == ENETRESET) { 4076 if (ifp->if_flags & IFF_RUNNING) 4077 bge_setmulti(sc); 4078 error = 0; 4079 } 4080 break; 4081 } 4082 4083 splx(s); 4084 4085 return(error); 4086 } 4087 4088 static void 4089 bge_watchdog(struct ifnet *ifp) 4090 { 4091 struct bge_softc *sc; 4092 4093 sc = ifp->if_softc; 4094 4095 printf("%s: watchdog timeout -- resetting\n", sc->bge_dev.dv_xname); 4096 4097 ifp->if_flags &= ~IFF_RUNNING; 4098 bge_init(ifp); 4099 4100 ifp->if_oerrors++; 4101 } 4102 4103 static void 4104 bge_stop_block(struct bge_softc *sc, bus_addr_t reg, uint32_t bit) 4105 { 4106 int i; 4107 4108 BGE_CLRBIT(sc, reg, bit); 4109 4110 for (i = 0; i < BGE_TIMEOUT; i++) { 4111 if ((CSR_READ_4(sc, reg) & bit) == 0) 4112 return; 4113 delay(100); 4114 if (sc->bge_pcie) 4115 DELAY(1000); 4116 } 4117 4118 printf("%s: block failed to stop: reg 0x%lx, bit 0x%08x\n", 4119 sc->bge_dev.dv_xname, (u_long) reg, bit); 4120 } 4121 4122 /* 4123 * Stop the adapter and free any mbufs allocated to the 4124 * RX and TX lists. 4125 */ 4126 static void 4127 bge_stop(struct bge_softc *sc) 4128 { 4129 struct ifnet *ifp = &sc->ethercom.ec_if; 4130 4131 callout_stop(&sc->bge_timeout); 4132 4133 /* 4134 * Disable all of the receiver blocks 4135 */ 4136 bge_stop_block(sc, BGE_RX_MODE, BGE_RXMODE_ENABLE); 4137 bge_stop_block(sc, BGE_RBDI_MODE, BGE_RBDIMODE_ENABLE); 4138 bge_stop_block(sc, BGE_RXLP_MODE, BGE_RXLPMODE_ENABLE); 4139 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 4140 bge_stop_block(sc, BGE_RXLS_MODE, BGE_RXLSMODE_ENABLE); 4141 } 4142 bge_stop_block(sc, BGE_RDBDI_MODE, BGE_RBDIMODE_ENABLE); 4143 bge_stop_block(sc, BGE_RDC_MODE, BGE_RDCMODE_ENABLE); 4144 bge_stop_block(sc, BGE_RBDC_MODE, BGE_RBDCMODE_ENABLE); 4145 4146 /* 4147 * Disable all of the transmit blocks 4148 */ 4149 bge_stop_block(sc, BGE_SRS_MODE, BGE_SRSMODE_ENABLE); 4150 bge_stop_block(sc, BGE_SBDI_MODE, BGE_SBDIMODE_ENABLE); 4151 bge_stop_block(sc, BGE_SDI_MODE, BGE_SDIMODE_ENABLE); 4152 bge_stop_block(sc, BGE_RDMA_MODE, BGE_RDMAMODE_ENABLE); 4153 bge_stop_block(sc, BGE_SDC_MODE, BGE_SDCMODE_ENABLE); 4154 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 4155 bge_stop_block(sc, BGE_DMAC_MODE, BGE_DMACMODE_ENABLE); 4156 } 4157 bge_stop_block(sc, BGE_SBDC_MODE, BGE_SBDCMODE_ENABLE); 4158 4159 /* 4160 * Shut down all of the memory managers and related 4161 * state machines. 4162 */ 4163 bge_stop_block(sc, BGE_HCC_MODE, BGE_HCCMODE_ENABLE); 4164 bge_stop_block(sc, BGE_WDMA_MODE, BGE_WDMAMODE_ENABLE); 4165 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 4166 bge_stop_block(sc, BGE_MBCF_MODE, BGE_MBCFMODE_ENABLE); 4167 } 4168 4169 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0xFFFFFFFF); 4170 CSR_WRITE_4(sc, BGE_FTQ_RESET, 0); 4171 4172 if ((sc->bge_quirks & BGE_QUIRK_5705_CORE) == 0) { 4173 bge_stop_block(sc, BGE_BMAN_MODE, BGE_BMANMODE_ENABLE); 4174 bge_stop_block(sc, BGE_MARB_MODE, BGE_MARBMODE_ENABLE); 4175 } 4176 4177 /* Disable host interrupts. */ 4178 BGE_SETBIT(sc, BGE_PCI_MISC_CTL, BGE_PCIMISCCTL_MASK_PCI_INTR); 4179 CSR_WRITE_4(sc, BGE_MBX_IRQ0_LO, 1); 4180 4181 /* 4182 * Tell firmware we're shutting down. 4183 */ 4184 BGE_CLRBIT(sc, BGE_MODE_CTL, BGE_MODECTL_STACKUP); 4185 4186 /* Free the RX lists. */ 4187 bge_free_rx_ring_std(sc); 4188 4189 /* Free jumbo RX list. */ 4190 bge_free_rx_ring_jumbo(sc); 4191 4192 /* Free TX buffers. */ 4193 bge_free_tx_ring(sc); 4194 4195 /* 4196 * Isolate/power down the PHY. 4197 */ 4198 if (!sc->bge_tbi) 4199 mii_down(&sc->bge_mii); 4200 4201 sc->bge_link = 0; 4202 4203 sc->bge_tx_saved_considx = BGE_TXCONS_UNSET; 4204 4205 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 4206 } 4207 4208 /* 4209 * Stop all chip I/O so that the kernel's probe routines don't 4210 * get confused by errant DMAs when rebooting. 4211 */ 4212 static void 4213 bge_shutdown(void *xsc) 4214 { 4215 struct bge_softc *sc = (struct bge_softc *)xsc; 4216 4217 bge_stop(sc); 4218 bge_reset(sc); 4219 } 4220 4221 4222 static int 4223 sysctl_bge_verify(SYSCTLFN_ARGS) 4224 { 4225 int error, t; 4226 struct sysctlnode node; 4227 4228 node = *rnode; 4229 t = *(int*)rnode->sysctl_data; 4230 node.sysctl_data = &t; 4231 error = sysctl_lookup(SYSCTLFN_CALL(&node)); 4232 if (error || newp == NULL) 4233 return (error); 4234 4235 #if 0 4236 DPRINTF2(("%s: t = %d, nodenum = %d, rnodenum = %d\n", __func__, t, 4237 node.sysctl_num, rnode->sysctl_num)); 4238 #endif 4239 4240 if (node.sysctl_num == bge_rxthresh_nodenum) { 4241 if (t < 0 || t >= NBGE_RX_THRESH) 4242 return (EINVAL); 4243 bge_update_all_threshes(t); 4244 } else 4245 return (EINVAL); 4246 4247 *(int*)rnode->sysctl_data = t; 4248 4249 return (0); 4250 } 4251 4252 /* 4253 * Set up sysctl(3) MIB, hw.bge.*. 4254 * 4255 * TBD condition SYSCTL_PERMANENT on being an LKM or not 4256 */ 4257 SYSCTL_SETUP(sysctl_bge, "sysctl bge subtree setup") 4258 { 4259 int rc, bge_root_num; 4260 const struct sysctlnode *node; 4261 4262 if ((rc = sysctl_createv(clog, 0, NULL, NULL, 4263 CTLFLAG_PERMANENT, CTLTYPE_NODE, "hw", NULL, 4264 NULL, 0, NULL, 0, CTL_HW, CTL_EOL)) != 0) { 4265 goto err; 4266 } 4267 4268 if ((rc = sysctl_createv(clog, 0, NULL, &node, 4269 CTLFLAG_PERMANENT, CTLTYPE_NODE, "bge", 4270 SYSCTL_DESCR("BGE interface controls"), 4271 NULL, 0, NULL, 0, CTL_HW, CTL_CREATE, CTL_EOL)) != 0) { 4272 goto err; 4273 } 4274 4275 bge_root_num = node->sysctl_num; 4276 4277 /* BGE Rx interrupt mitigation level */ 4278 if ((rc = sysctl_createv(clog, 0, NULL, &node, 4279 CTLFLAG_PERMANENT|CTLFLAG_READWRITE, 4280 CTLTYPE_INT, "rx_lvl", 4281 SYSCTL_DESCR("BGE receive interrupt mitigation level"), 4282 sysctl_bge_verify, 0, 4283 &bge_rx_thresh_lvl, 4284 0, CTL_HW, bge_root_num, CTL_CREATE, 4285 CTL_EOL)) != 0) { 4286 goto err; 4287 } 4288 4289 bge_rxthresh_nodenum = node->sysctl_num; 4290 4291 return; 4292 4293 err: 4294 printf("%s: sysctl_createv failed (rc = %d)\n", __func__, rc); 4295 } 4296 4297 static void 4298 bge_powerhook(int why, void *hdl) 4299 { 4300 struct bge_softc *sc = (struct bge_softc *)hdl; 4301 struct ifnet *ifp = &sc->ethercom.ec_if; 4302 struct pci_attach_args *pa = &(sc->bge_pa); 4303 pci_chipset_tag_t pc = pa->pa_pc; 4304 pcitag_t tag = pa->pa_tag; 4305 4306 switch (why) { 4307 case PWR_SOFTSUSPEND: 4308 case PWR_SOFTSTANDBY: 4309 bge_shutdown(sc); 4310 break; 4311 case PWR_SOFTRESUME: 4312 if (ifp->if_flags & IFF_UP) { 4313 ifp->if_flags &= ~IFF_RUNNING; 4314 bge_init(ifp); 4315 } 4316 break; 4317 case PWR_SUSPEND: 4318 case PWR_STANDBY: 4319 pci_conf_capture(pc, tag, &sc->bge_pciconf); 4320 break; 4321 case PWR_RESUME: 4322 pci_conf_restore(pc, tag, &sc->bge_pciconf); 4323 break; 4324 } 4325 4326 return; 4327 } 4328
Indexes created Thu Sep 25 06:09:39 GMT 2025