if_age.c revision 1.71
1 /* $NetBSD: if_age.c,v 1.71 2022/08/22 16:14:31 thorpej Exp $ */ 2 /* $OpenBSD: if_age.c,v 1.1 2009/01/16 05:00:34 kevlo Exp $ */ 3 4 /*- 5 * Copyright (c) 2008, Pyun YongHyeon <yongari (at) FreeBSD.org> 6 * 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 unmodified, this list of conditions, and the following 13 * disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 18 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 19 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 20 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 21 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 22 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 23 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 24 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 25 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 26 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 27 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 28 * SUCH DAMAGE. 29 */ 30 31 /* Driver for Attansic Technology Corp. L1 Gigabit Ethernet. */ 32 33 #include <sys/cdefs.h> 34 __KERNEL_RCSID(0, "$NetBSD: if_age.c,v 1.71 2022/08/22 16:14:31 thorpej Exp $"); 35 36 #include "vlan.h" 37 38 #include <sys/param.h> 39 #include <sys/proc.h> 40 #include <sys/endian.h> 41 #include <sys/systm.h> 42 #include <sys/types.h> 43 #include <sys/sockio.h> 44 #include <sys/mbuf.h> 45 #include <sys/queue.h> 46 #include <sys/kernel.h> 47 #include <sys/device.h> 48 #include <sys/callout.h> 49 #include <sys/socket.h> 50 51 #include <net/if.h> 52 #include <net/if_dl.h> 53 #include <net/if_media.h> 54 #include <net/if_ether.h> 55 56 #ifdef INET 57 #include <netinet/in.h> 58 #include <netinet/in_systm.h> 59 #include <netinet/in_var.h> 60 #include <netinet/ip.h> 61 #endif 62 63 #include <net/if_types.h> 64 #include <net/if_vlanvar.h> 65 66 #include <net/bpf.h> 67 68 #include <dev/mii/mii.h> 69 #include <dev/mii/miivar.h> 70 71 #include <dev/pci/pcireg.h> 72 #include <dev/pci/pcivar.h> 73 #include <dev/pci/pcidevs.h> 74 75 #include <dev/pci/if_agereg.h> 76 77 static int age_match(device_t, cfdata_t, void *); 78 static void age_attach(device_t, device_t, void *); 79 static int age_detach(device_t, int); 80 81 static bool age_resume(device_t, const pmf_qual_t *); 82 83 static int age_miibus_readreg(device_t, int, int, uint16_t *); 84 static int age_miibus_writereg(device_t, int, int, uint16_t); 85 static void age_miibus_statchg(struct ifnet *); 86 87 static int age_init(struct ifnet *); 88 static int age_ioctl(struct ifnet *, u_long, void *); 89 static void age_start(struct ifnet *); 90 static void age_watchdog(struct ifnet *); 91 static bool age_shutdown(device_t, int); 92 static void age_mediastatus(struct ifnet *, struct ifmediareq *); 93 static int age_mediachange(struct ifnet *); 94 95 static int age_intr(void *); 96 static int age_dma_alloc(struct age_softc *); 97 static void age_dma_free(struct age_softc *); 98 static void age_get_macaddr(struct age_softc *, uint8_t[]); 99 static void age_phy_reset(struct age_softc *); 100 101 static int age_encap(struct age_softc *, struct mbuf *); 102 static void age_init_tx_ring(struct age_softc *); 103 static int age_init_rx_ring(struct age_softc *); 104 static void age_init_rr_ring(struct age_softc *); 105 static void age_init_cmb_block(struct age_softc *); 106 static void age_init_smb_block(struct age_softc *); 107 static int age_newbuf(struct age_softc *, struct age_rxdesc *, int); 108 static void age_mac_config(struct age_softc *); 109 static void age_txintr(struct age_softc *, int); 110 static void age_rxeof(struct age_softc *sc, struct rx_rdesc *); 111 static void age_rxintr(struct age_softc *, int); 112 static void age_tick(void *); 113 static void age_reset(struct age_softc *); 114 static void age_stop(struct ifnet *, int); 115 static void age_stats_update(struct age_softc *); 116 static void age_stop_txmac(struct age_softc *); 117 static void age_stop_rxmac(struct age_softc *); 118 static void age_rxvlan(struct age_softc *sc); 119 static void age_rxfilter(struct age_softc *); 120 121 CFATTACH_DECL_NEW(age, sizeof(struct age_softc), 122 age_match, age_attach, age_detach, NULL); 123 124 int agedebug = 0; 125 #define DPRINTF(x) do { if (agedebug) printf x; } while (0) 126 127 #define AGE_CSUM_FEATURES (M_CSUM_TCPv4 | M_CSUM_UDPv4) 128 129 static int 130 age_match(device_t dev, cfdata_t match, void *aux) 131 { 132 struct pci_attach_args *pa = aux; 133 134 return (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_ATTANSIC && 135 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_ATTANSIC_ETHERNET_GIGA); 136 } 137 138 static void 139 age_attach(device_t parent, device_t self, void *aux) 140 { 141 struct age_softc *sc = device_private(self); 142 struct pci_attach_args *pa = aux; 143 pci_intr_handle_t ih; 144 const char *intrstr; 145 struct ifnet *ifp = &sc->sc_ec.ec_if; 146 struct mii_data * const mii = &sc->sc_miibus; 147 pcireg_t memtype; 148 int error = 0; 149 char intrbuf[PCI_INTRSTR_LEN]; 150 151 aprint_naive("\n"); 152 aprint_normal(": Attansic/Atheros L1 Gigabit Ethernet\n"); 153 154 sc->sc_dev = self; 155 sc->sc_pct = pa->pa_pc; 156 sc->sc_pcitag = pa->pa_tag; 157 158 if (pci_dma64_available(pa)) 159 sc->sc_dmat = pa->pa_dmat64; 160 else 161 sc->sc_dmat = pa->pa_dmat; 162 163 /* 164 * Allocate IO memory 165 */ 166 memtype = pci_mapreg_type(sc->sc_pct, sc->sc_pcitag, AGE_PCIR_BAR); 167 switch (memtype) { 168 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT: 169 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT_1M: 170 case PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_64BIT: 171 break; 172 default: 173 aprint_error_dev(self, "invalid base address register\n"); 174 break; 175 } 176 177 if (pci_mapreg_map(pa, AGE_PCIR_BAR, memtype, 0, &sc->sc_mem_bt, 178 &sc->sc_mem_bh, NULL, &sc->sc_mem_size) != 0) { 179 aprint_error_dev(self, "could not map mem space\n"); 180 return; 181 } 182 183 if (pci_intr_map(pa, &ih) != 0) { 184 aprint_error_dev(self, "could not map interrupt\n"); 185 goto fail; 186 } 187 188 /* 189 * Allocate IRQ 190 */ 191 intrstr = pci_intr_string(sc->sc_pct, ih, intrbuf, sizeof(intrbuf)); 192 sc->sc_irq_handle = pci_intr_establish_xname(sc->sc_pct, ih, IPL_NET, 193 age_intr, sc, device_xname(self)); 194 if (sc->sc_irq_handle == NULL) { 195 aprint_error_dev(self, "could not establish interrupt"); 196 if (intrstr != NULL) 197 aprint_error(" at %s", intrstr); 198 aprint_error("\n"); 199 goto fail; 200 } 201 aprint_normal_dev(self, "%s\n", intrstr); 202 203 /* Set PHY address. */ 204 sc->age_phyaddr = AGE_PHY_ADDR; 205 206 /* Reset PHY. */ 207 age_phy_reset(sc); 208 209 /* Reset the ethernet controller. */ 210 age_reset(sc); 211 212 /* Get PCI and chip id/revision. */ 213 sc->age_rev = PCI_REVISION(pa->pa_class); 214 sc->age_chip_rev = CSR_READ_4(sc, AGE_MASTER_CFG) >> 215 MASTER_CHIP_REV_SHIFT; 216 217 aprint_debug_dev(self, "PCI device revision : 0x%04x\n", sc->age_rev); 218 aprint_debug_dev(self, "Chip id/revision : 0x%04x\n", sc->age_chip_rev); 219 220 if (agedebug) { 221 aprint_debug_dev(self, "%d Tx FIFO, %d Rx FIFO\n", 222 CSR_READ_4(sc, AGE_SRAM_TX_FIFO_LEN), 223 CSR_READ_4(sc, AGE_SRAM_RX_FIFO_LEN)); 224 } 225 226 /* Set max allowable DMA size. */ 227 sc->age_dma_rd_burst = DMA_CFG_RD_BURST_128; 228 sc->age_dma_wr_burst = DMA_CFG_WR_BURST_128; 229 230 /* Allocate DMA stuffs */ 231 error = age_dma_alloc(sc); 232 if (error) 233 goto fail; 234 235 callout_init(&sc->sc_tick_ch, 0); 236 callout_setfunc(&sc->sc_tick_ch, age_tick, sc); 237 238 /* Load station address. */ 239 age_get_macaddr(sc, sc->sc_enaddr); 240 241 aprint_normal_dev(self, "Ethernet address %s\n", 242 ether_sprintf(sc->sc_enaddr)); 243 244 ifp->if_softc = sc; 245 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 246 ifp->if_init = age_init; 247 ifp->if_ioctl = age_ioctl; 248 ifp->if_start = age_start; 249 ifp->if_stop = age_stop; 250 ifp->if_watchdog = age_watchdog; 251 ifp->if_baudrate = IF_Gbps(1); 252 IFQ_SET_MAXLEN(&ifp->if_snd, AGE_TX_RING_CNT - 1); 253 IFQ_SET_READY(&ifp->if_snd); 254 strlcpy(ifp->if_xname, device_xname(sc->sc_dev), IFNAMSIZ); 255 256 sc->sc_ec.ec_capabilities = ETHERCAP_VLAN_MTU; 257 258 ifp->if_capabilities |= IFCAP_CSUM_IPv4_Rx | 259 IFCAP_CSUM_TCPv4_Rx | 260 IFCAP_CSUM_UDPv4_Rx; 261 #ifdef AGE_CHECKSUM 262 ifp->if_capabilities |= IFCAP_CSUM_IPv4_Tx | 263 IFCAP_CSUM_TCPv4_Tx | 264 IFCAP_CSUM_UDPv4_Tx; 265 #endif 266 267 #if NVLAN > 0 268 sc->sc_ec.ec_capabilities |= ETHERCAP_VLAN_HWTAGGING; 269 sc->sc_ec.ec_capenable |= ETHERCAP_VLAN_HWTAGGING; 270 #endif 271 272 /* Set up MII bus. */ 273 mii->mii_ifp = ifp; 274 mii->mii_readreg = age_miibus_readreg; 275 mii->mii_writereg = age_miibus_writereg; 276 mii->mii_statchg = age_miibus_statchg; 277 278 sc->sc_ec.ec_mii = mii; 279 ifmedia_init(&mii->mii_media, 0, age_mediachange, age_mediastatus); 280 mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, 281 MII_OFFSET_ANY, MIIF_DOPAUSE); 282 283 if (LIST_FIRST(&mii->mii_phys) == NULL) { 284 aprint_error_dev(self, "no PHY found!\n"); 285 ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_MANUAL, 0, NULL); 286 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_MANUAL); 287 } else 288 ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); 289 290 if_attach(ifp); 291 if_deferred_start_init(ifp, NULL); 292 ether_ifattach(ifp, sc->sc_enaddr); 293 294 if (pmf_device_register1(self, NULL, age_resume, age_shutdown)) 295 pmf_class_network_register(self, ifp); 296 else 297 aprint_error_dev(self, "couldn't establish power handler\n"); 298 299 return; 300 301 fail: 302 age_dma_free(sc); 303 if (sc->sc_irq_handle != NULL) { 304 pci_intr_disestablish(sc->sc_pct, sc->sc_irq_handle); 305 sc->sc_irq_handle = NULL; 306 } 307 if (sc->sc_mem_size) { 308 bus_space_unmap(sc->sc_mem_bt, sc->sc_mem_bh, sc->sc_mem_size); 309 sc->sc_mem_size = 0; 310 } 311 } 312 313 static int 314 age_detach(device_t self, int flags) 315 { 316 struct age_softc *sc = device_private(self); 317 struct ifnet *ifp = &sc->sc_ec.ec_if; 318 int s; 319 320 pmf_device_deregister(self); 321 s = splnet(); 322 age_stop(ifp, 0); 323 splx(s); 324 325 mii_detach(&sc->sc_miibus, MII_PHY_ANY, MII_OFFSET_ANY); 326 327 ether_ifdetach(ifp); 328 if_detach(ifp); 329 age_dma_free(sc); 330 331 /* Delete all remaining media. */ 332 ifmedia_fini(&sc->sc_miibus.mii_media); 333 334 if (sc->sc_irq_handle != NULL) { 335 pci_intr_disestablish(sc->sc_pct, sc->sc_irq_handle); 336 sc->sc_irq_handle = NULL; 337 } 338 if (sc->sc_mem_size) { 339 bus_space_unmap(sc->sc_mem_bt, sc->sc_mem_bh, sc->sc_mem_size); 340 sc->sc_mem_size = 0; 341 } 342 return 0; 343 } 344 345 /* 346 * Read a PHY register on the MII of the L1. 347 */ 348 static int 349 age_miibus_readreg(device_t dev, int phy, int reg, uint16_t *val) 350 { 351 struct age_softc *sc = device_private(dev); 352 uint32_t v; 353 int i; 354 355 if (phy != sc->age_phyaddr) 356 return -1; 357 358 CSR_WRITE_4(sc, AGE_MDIO, MDIO_OP_EXECUTE | MDIO_OP_READ | 359 MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | MDIO_REG_ADDR(reg)); 360 for (i = AGE_PHY_TIMEOUT; i > 0; i--) { 361 DELAY(1); 362 v = CSR_READ_4(sc, AGE_MDIO); 363 if ((v & (MDIO_OP_EXECUTE | MDIO_OP_BUSY)) == 0) 364 break; 365 } 366 367 if (i == 0) { 368 printf("%s: phy read timeout: phy %d, reg %d\n", 369 device_xname(sc->sc_dev), phy, reg); 370 return ETIMEDOUT; 371 } 372 373 *val = (v & MDIO_DATA_MASK) >> MDIO_DATA_SHIFT; 374 return 0; 375 } 376 377 /* 378 * Write a PHY register on the MII of the L1. 379 */ 380 static int 381 age_miibus_writereg(device_t dev, int phy, int reg, uint16_t val) 382 { 383 struct age_softc *sc = device_private(dev); 384 uint32_t v; 385 int i; 386 387 if (phy != sc->age_phyaddr) 388 return -1; 389 390 CSR_WRITE_4(sc, AGE_MDIO, MDIO_OP_EXECUTE | MDIO_OP_WRITE | 391 (val & MDIO_DATA_MASK) << MDIO_DATA_SHIFT | 392 MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | MDIO_REG_ADDR(reg)); 393 394 for (i = AGE_PHY_TIMEOUT; i > 0; i--) { 395 DELAY(1); 396 v = CSR_READ_4(sc, AGE_MDIO); 397 if ((v & (MDIO_OP_EXECUTE | MDIO_OP_BUSY)) == 0) 398 break; 399 } 400 401 if (i == 0) { 402 printf("%s: phy write timeout: phy %d, reg %d\n", 403 device_xname(sc->sc_dev), phy, reg); 404 return ETIMEDOUT; 405 } 406 407 return 0; 408 } 409 410 /* 411 * Callback from MII layer when media changes. 412 */ 413 static void 414 age_miibus_statchg(struct ifnet *ifp) 415 { 416 struct age_softc *sc = ifp->if_softc; 417 struct mii_data *mii = &sc->sc_miibus; 418 419 if ((ifp->if_flags & IFF_RUNNING) == 0) 420 return; 421 422 sc->age_flags &= ~AGE_FLAG_LINK; 423 if ((mii->mii_media_status & IFM_AVALID) != 0) { 424 switch (IFM_SUBTYPE(mii->mii_media_active)) { 425 case IFM_10_T: 426 case IFM_100_TX: 427 case IFM_1000_T: 428 sc->age_flags |= AGE_FLAG_LINK; 429 break; 430 default: 431 break; 432 } 433 } 434 435 /* Stop Rx/Tx MACs. */ 436 age_stop_rxmac(sc); 437 age_stop_txmac(sc); 438 439 /* Program MACs with resolved speed/duplex/flow-control. */ 440 if ((sc->age_flags & AGE_FLAG_LINK) != 0) { 441 uint32_t reg; 442 443 age_mac_config(sc); 444 reg = CSR_READ_4(sc, AGE_MAC_CFG); 445 /* Restart DMA engine and Tx/Rx MAC. */ 446 CSR_WRITE_4(sc, AGE_DMA_CFG, CSR_READ_4(sc, AGE_DMA_CFG) | 447 DMA_CFG_RD_ENB | DMA_CFG_WR_ENB); 448 reg |= MAC_CFG_TX_ENB | MAC_CFG_RX_ENB; 449 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 450 } 451 } 452 453 /* 454 * Get the current interface media status. 455 */ 456 static void 457 age_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 458 { 459 struct age_softc *sc = ifp->if_softc; 460 struct mii_data *mii = &sc->sc_miibus; 461 462 mii_pollstat(mii); 463 ifmr->ifm_status = mii->mii_media_status; 464 ifmr->ifm_active = mii->mii_media_active; 465 } 466 467 /* 468 * Set hardware to newly-selected media. 469 */ 470 static int 471 age_mediachange(struct ifnet *ifp) 472 { 473 struct age_softc *sc = ifp->if_softc; 474 struct mii_data *mii = &sc->sc_miibus; 475 int error; 476 477 if (mii->mii_instance != 0) { 478 struct mii_softc *miisc; 479 480 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 481 mii_phy_reset(miisc); 482 } 483 error = mii_mediachg(mii); 484 485 return error; 486 } 487 488 static int 489 age_intr(void *arg) 490 { 491 struct age_softc *sc = arg; 492 struct ifnet *ifp = &sc->sc_ec.ec_if; 493 struct cmb *cmb; 494 uint32_t status; 495 496 status = CSR_READ_4(sc, AGE_INTR_STATUS); 497 if (status == 0 || (status & AGE_INTRS) == 0) 498 return 0; 499 500 cmb = sc->age_rdata.age_cmb_block; 501 if (cmb == NULL) { 502 /* Happens when bringing up the interface 503 * w/o having a carrier. Ack the interrupt. 504 */ 505 CSR_WRITE_4(sc, AGE_INTR_STATUS, status); 506 return 0; 507 } 508 509 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 0, 510 sc->age_cdata.age_cmb_block_map->dm_mapsize, 511 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 512 status = le32toh(cmb->intr_status); 513 /* ACK/reenable interrupts */ 514 CSR_WRITE_4(sc, AGE_INTR_STATUS, status); 515 while ((status & AGE_INTRS) != 0) { 516 sc->age_tpd_cons = (le32toh(cmb->tpd_cons) & TPD_CONS_MASK) >> 517 TPD_CONS_SHIFT; 518 sc->age_rr_prod = (le32toh(cmb->rprod_cons) & RRD_PROD_MASK) >> 519 RRD_PROD_SHIFT; 520 521 /* Let hardware know CMB was served. */ 522 cmb->intr_status = 0; 523 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 0, 524 sc->age_cdata.age_cmb_block_map->dm_mapsize, 525 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 526 527 if (ifp->if_flags & IFF_RUNNING) { 528 if (status & INTR_CMB_RX) 529 age_rxintr(sc, sc->age_rr_prod); 530 531 if (status & INTR_CMB_TX) 532 age_txintr(sc, sc->age_tpd_cons); 533 534 if (status & (INTR_DMA_RD_TO_RST | INTR_DMA_WR_TO_RST)) { 535 if (status & INTR_DMA_RD_TO_RST) 536 printf("%s: DMA read error! -- " 537 "resetting\n", 538 device_xname(sc->sc_dev)); 539 if (status & INTR_DMA_WR_TO_RST) 540 printf("%s: DMA write error! -- " 541 "resetting\n", 542 device_xname(sc->sc_dev)); 543 age_init(ifp); 544 } 545 546 if_schedule_deferred_start(ifp); 547 548 if (status & INTR_SMB) 549 age_stats_update(sc); 550 } 551 /* check if more interrupts did came in */ 552 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 0, 553 sc->age_cdata.age_cmb_block_map->dm_mapsize, 554 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 555 status = le32toh(cmb->intr_status); 556 } 557 558 return 1; 559 } 560 561 static void 562 age_get_macaddr(struct age_softc *sc, uint8_t eaddr[]) 563 { 564 uint32_t ea[2], reg; 565 int i, vpdc; 566 567 reg = CSR_READ_4(sc, AGE_SPI_CTRL); 568 if ((reg & SPI_VPD_ENB) != 0) { 569 /* Get VPD stored in TWSI EEPROM. */ 570 reg &= ~SPI_VPD_ENB; 571 CSR_WRITE_4(sc, AGE_SPI_CTRL, reg); 572 } 573 574 if (pci_get_capability(sc->sc_pct, sc->sc_pcitag, 575 PCI_CAP_VPD, &vpdc, NULL)) { 576 /* 577 * PCI VPD capability found, let TWSI reload EEPROM. 578 * This will set Ethernet address of controller. 579 */ 580 CSR_WRITE_4(sc, AGE_TWSI_CTRL, CSR_READ_4(sc, AGE_TWSI_CTRL) | 581 TWSI_CTRL_SW_LD_START); 582 for (i = 100; i > 0; i--) { 583 DELAY(1000); 584 reg = CSR_READ_4(sc, AGE_TWSI_CTRL); 585 if ((reg & TWSI_CTRL_SW_LD_START) == 0) 586 break; 587 } 588 if (i == 0) 589 printf("%s: reloading EEPROM timeout!\n", 590 device_xname(sc->sc_dev)); 591 } else { 592 if (agedebug) 593 printf("%s: PCI VPD capability not found!\n", 594 device_xname(sc->sc_dev)); 595 } 596 597 ea[0] = CSR_READ_4(sc, AGE_PAR0); 598 ea[1] = CSR_READ_4(sc, AGE_PAR1); 599 600 eaddr[0] = (ea[1] >> 8) & 0xFF; 601 eaddr[1] = (ea[1] >> 0) & 0xFF; 602 eaddr[2] = (ea[0] >> 24) & 0xFF; 603 eaddr[3] = (ea[0] >> 16) & 0xFF; 604 eaddr[4] = (ea[0] >> 8) & 0xFF; 605 eaddr[5] = (ea[0] >> 0) & 0xFF; 606 } 607 608 static void 609 age_phy_reset(struct age_softc *sc) 610 { 611 uint16_t reg, pn; 612 int i, linkup; 613 614 /* Reset PHY. */ 615 CSR_WRITE_4(sc, AGE_GPHY_CTRL, GPHY_CTRL_RST); 616 DELAY(2000); 617 CSR_WRITE_4(sc, AGE_GPHY_CTRL, GPHY_CTRL_CLR); 618 DELAY(2000); 619 620 #define ATPHY_DBG_ADDR 0x1D 621 #define ATPHY_DBG_DATA 0x1E 622 #define ATPHY_CDTC 0x16 623 #define PHY_CDTC_ENB 0x0001 624 #define PHY_CDTC_POFF 8 625 #define ATPHY_CDTS 0x1C 626 #define PHY_CDTS_STAT_OK 0x0000 627 #define PHY_CDTS_STAT_SHORT 0x0100 628 #define PHY_CDTS_STAT_OPEN 0x0200 629 #define PHY_CDTS_STAT_INVAL 0x0300 630 #define PHY_CDTS_STAT_MASK 0x0300 631 632 /* Check power saving mode. Magic from Linux. */ 633 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, MII_BMCR, BMCR_RESET); 634 for (linkup = 0, pn = 0; pn < 4; pn++) { 635 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, ATPHY_CDTC, 636 (pn << PHY_CDTC_POFF) | PHY_CDTC_ENB); 637 for (i = 200; i > 0; i--) { 638 DELAY(1000); 639 age_miibus_readreg(sc->sc_dev, sc->age_phyaddr, 640 ATPHY_CDTC, ®); 641 if ((reg & PHY_CDTC_ENB) == 0) 642 break; 643 } 644 DELAY(1000); 645 age_miibus_readreg(sc->sc_dev, sc->age_phyaddr, 646 ATPHY_CDTS, ®); 647 if ((reg & PHY_CDTS_STAT_MASK) != PHY_CDTS_STAT_OPEN) { 648 linkup++; 649 break; 650 } 651 } 652 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, MII_BMCR, 653 BMCR_RESET | BMCR_AUTOEN | BMCR_STARTNEG); 654 if (linkup == 0) { 655 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, 656 ATPHY_DBG_ADDR, 0); 657 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, 658 ATPHY_DBG_DATA, 0x124E); 659 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, 660 ATPHY_DBG_ADDR, 1); 661 age_miibus_readreg(sc->sc_dev, sc->age_phyaddr, 662 ATPHY_DBG_DATA, ®); 663 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, 664 ATPHY_DBG_DATA, reg | 0x03); 665 /* XXX */ 666 DELAY(1500 * 1000); 667 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, 668 ATPHY_DBG_ADDR, 0); 669 age_miibus_writereg(sc->sc_dev, sc->age_phyaddr, 670 ATPHY_DBG_DATA, 0x024E); 671 } 672 673 #undef ATPHY_DBG_ADDR 674 #undef ATPHY_DBG_DATA 675 #undef ATPHY_CDTC 676 #undef PHY_CDTC_ENB 677 #undef PHY_CDTC_POFF 678 #undef ATPHY_CDTS 679 #undef PHY_CDTS_STAT_OK 680 #undef PHY_CDTS_STAT_SHORT 681 #undef PHY_CDTS_STAT_OPEN 682 #undef PHY_CDTS_STAT_INVAL 683 #undef PHY_CDTS_STAT_MASK 684 } 685 686 static int 687 age_dma_alloc(struct age_softc *sc) 688 { 689 struct age_txdesc *txd; 690 struct age_rxdesc *rxd; 691 int nsegs, error, i; 692 693 /* 694 * Create DMA stuffs for TX ring 695 */ 696 error = bus_dmamap_create(sc->sc_dmat, AGE_TX_RING_SZ, 1, 697 AGE_TX_RING_SZ, 0, BUS_DMA_NOWAIT, &sc->age_cdata.age_tx_ring_map); 698 if (error) { 699 sc->age_cdata.age_tx_ring_map = NULL; 700 return ENOBUFS; 701 } 702 703 /* Allocate DMA'able memory for TX ring */ 704 error = bus_dmamem_alloc(sc->sc_dmat, AGE_TX_RING_SZ, 705 PAGE_SIZE, 0, &sc->age_rdata.age_tx_ring_seg, 1, 706 &nsegs, BUS_DMA_NOWAIT); 707 if (error) { 708 printf("%s: could not allocate DMA'able memory for Tx ring, " 709 "error = %i\n", device_xname(sc->sc_dev), error); 710 return error; 711 } 712 713 error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_tx_ring_seg, 714 nsegs, AGE_TX_RING_SZ, (void **)&sc->age_rdata.age_tx_ring, 715 BUS_DMA_NOWAIT | BUS_DMA_COHERENT); 716 if (error) 717 return ENOBUFS; 718 719 memset(sc->age_rdata.age_tx_ring, 0, AGE_TX_RING_SZ); 720 721 /* Load the DMA map for Tx ring. */ 722 error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 723 sc->age_rdata.age_tx_ring, AGE_TX_RING_SZ, NULL, BUS_DMA_NOWAIT); 724 if (error) { 725 printf("%s: could not load DMA'able memory for Tx ring, " 726 "error = %i\n", device_xname(sc->sc_dev), error); 727 bus_dmamem_free(sc->sc_dmat, 728 &sc->age_rdata.age_tx_ring_seg, 1); 729 return error; 730 } 731 732 sc->age_rdata.age_tx_ring_paddr = 733 sc->age_cdata.age_tx_ring_map->dm_segs[0].ds_addr; 734 735 /* 736 * Create DMA stuffs for RX ring 737 */ 738 error = bus_dmamap_create(sc->sc_dmat, AGE_RX_RING_SZ, 1, 739 AGE_RX_RING_SZ, 0, BUS_DMA_NOWAIT, &sc->age_cdata.age_rx_ring_map); 740 if (error) { 741 sc->age_cdata.age_rx_ring_map = NULL; 742 return ENOBUFS; 743 } 744 745 /* Allocate DMA'able memory for RX ring */ 746 error = bus_dmamem_alloc(sc->sc_dmat, AGE_RX_RING_SZ, 747 PAGE_SIZE, 0, &sc->age_rdata.age_rx_ring_seg, 1, 748 &nsegs, BUS_DMA_NOWAIT); 749 if (error) { 750 printf("%s: could not allocate DMA'able memory for Rx ring, " 751 "error = %i.\n", device_xname(sc->sc_dev), error); 752 return error; 753 } 754 755 error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_rx_ring_seg, 756 nsegs, AGE_RX_RING_SZ, (void **)&sc->age_rdata.age_rx_ring, 757 BUS_DMA_NOWAIT | BUS_DMA_COHERENT); 758 if (error) 759 return ENOBUFS; 760 761 memset(sc->age_rdata.age_rx_ring, 0, AGE_RX_RING_SZ); 762 763 /* Load the DMA map for Rx ring. */ 764 error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_rx_ring_map, 765 sc->age_rdata.age_rx_ring, AGE_RX_RING_SZ, NULL, BUS_DMA_NOWAIT); 766 if (error) { 767 printf("%s: could not load DMA'able memory for Rx ring, " 768 "error = %i.\n", device_xname(sc->sc_dev), error); 769 bus_dmamem_free(sc->sc_dmat, 770 &sc->age_rdata.age_rx_ring_seg, 1); 771 return error; 772 } 773 774 sc->age_rdata.age_rx_ring_paddr = 775 sc->age_cdata.age_rx_ring_map->dm_segs[0].ds_addr; 776 777 /* 778 * Create DMA stuffs for RX return ring 779 */ 780 error = bus_dmamap_create(sc->sc_dmat, AGE_RR_RING_SZ, 1, 781 AGE_RR_RING_SZ, 0, BUS_DMA_NOWAIT, &sc->age_cdata.age_rr_ring_map); 782 if (error) { 783 sc->age_cdata.age_rr_ring_map = NULL; 784 return ENOBUFS; 785 } 786 787 /* Allocate DMA'able memory for RX return ring */ 788 error = bus_dmamem_alloc(sc->sc_dmat, AGE_RR_RING_SZ, 789 PAGE_SIZE, 0, &sc->age_rdata.age_rr_ring_seg, 1, 790 &nsegs, BUS_DMA_NOWAIT); 791 if (error) { 792 printf("%s: could not allocate DMA'able memory for Rx " 793 "return ring, error = %i.\n", 794 device_xname(sc->sc_dev), error); 795 return error; 796 } 797 798 error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_rr_ring_seg, 799 nsegs, AGE_RR_RING_SZ, (void **)&sc->age_rdata.age_rr_ring, 800 BUS_DMA_NOWAIT | BUS_DMA_COHERENT); 801 if (error) 802 return ENOBUFS; 803 804 memset(sc->age_rdata.age_rr_ring, 0, AGE_RR_RING_SZ); 805 806 /* Load the DMA map for Rx return ring. */ 807 error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_rr_ring_map, 808 sc->age_rdata.age_rr_ring, AGE_RR_RING_SZ, NULL, BUS_DMA_NOWAIT); 809 if (error) { 810 printf("%s: could not load DMA'able memory for Rx return ring, " 811 "error = %i\n", device_xname(sc->sc_dev), error); 812 bus_dmamem_free(sc->sc_dmat, 813 &sc->age_rdata.age_rr_ring_seg, 1); 814 return error; 815 } 816 817 sc->age_rdata.age_rr_ring_paddr = 818 sc->age_cdata.age_rr_ring_map->dm_segs[0].ds_addr; 819 820 /* 821 * Create DMA stuffs for CMB block 822 */ 823 error = bus_dmamap_create(sc->sc_dmat, AGE_CMB_BLOCK_SZ, 1, 824 AGE_CMB_BLOCK_SZ, 0, BUS_DMA_NOWAIT, 825 &sc->age_cdata.age_cmb_block_map); 826 if (error) { 827 sc->age_cdata.age_cmb_block_map = NULL; 828 return ENOBUFS; 829 } 830 831 /* Allocate DMA'able memory for CMB block */ 832 error = bus_dmamem_alloc(sc->sc_dmat, AGE_CMB_BLOCK_SZ, 833 PAGE_SIZE, 0, &sc->age_rdata.age_cmb_block_seg, 1, 834 &nsegs, BUS_DMA_NOWAIT); 835 if (error) { 836 printf("%s: could not allocate DMA'able memory for " 837 "CMB block, error = %i\n", device_xname(sc->sc_dev), error); 838 return error; 839 } 840 841 error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_cmb_block_seg, 842 nsegs, AGE_CMB_BLOCK_SZ, (void **)&sc->age_rdata.age_cmb_block, 843 BUS_DMA_NOWAIT | BUS_DMA_COHERENT); 844 if (error) 845 return ENOBUFS; 846 847 memset(sc->age_rdata.age_cmb_block, 0, AGE_CMB_BLOCK_SZ); 848 849 /* Load the DMA map for CMB block. */ 850 error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 851 sc->age_rdata.age_cmb_block, AGE_CMB_BLOCK_SZ, NULL, 852 BUS_DMA_NOWAIT); 853 if (error) { 854 printf("%s: could not load DMA'able memory for CMB block, " 855 "error = %i\n", device_xname(sc->sc_dev), error); 856 bus_dmamem_free(sc->sc_dmat, 857 &sc->age_rdata.age_cmb_block_seg, 1); 858 return error; 859 } 860 861 sc->age_rdata.age_cmb_block_paddr = 862 sc->age_cdata.age_cmb_block_map->dm_segs[0].ds_addr; 863 864 /* 865 * Create DMA stuffs for SMB block 866 */ 867 error = bus_dmamap_create(sc->sc_dmat, AGE_SMB_BLOCK_SZ, 1, 868 AGE_SMB_BLOCK_SZ, 0, BUS_DMA_NOWAIT, 869 &sc->age_cdata.age_smb_block_map); 870 if (error) { 871 sc->age_cdata.age_smb_block_map = NULL; 872 return ENOBUFS; 873 } 874 875 /* Allocate DMA'able memory for SMB block */ 876 error = bus_dmamem_alloc(sc->sc_dmat, AGE_SMB_BLOCK_SZ, 877 PAGE_SIZE, 0, &sc->age_rdata.age_smb_block_seg, 1, 878 &nsegs, BUS_DMA_NOWAIT); 879 if (error) { 880 printf("%s: could not allocate DMA'able memory for " 881 "SMB block, error = %i\n", device_xname(sc->sc_dev), error); 882 return error; 883 } 884 885 error = bus_dmamem_map(sc->sc_dmat, &sc->age_rdata.age_smb_block_seg, 886 nsegs, AGE_SMB_BLOCK_SZ, (void **)&sc->age_rdata.age_smb_block, 887 BUS_DMA_NOWAIT | BUS_DMA_COHERENT); 888 if (error) 889 return ENOBUFS; 890 891 memset(sc->age_rdata.age_smb_block, 0, AGE_SMB_BLOCK_SZ); 892 893 /* Load the DMA map for SMB block */ 894 error = bus_dmamap_load(sc->sc_dmat, sc->age_cdata.age_smb_block_map, 895 sc->age_rdata.age_smb_block, AGE_SMB_BLOCK_SZ, NULL, 896 BUS_DMA_NOWAIT); 897 if (error) { 898 printf("%s: could not load DMA'able memory for SMB block, " 899 "error = %i\n", device_xname(sc->sc_dev), error); 900 bus_dmamem_free(sc->sc_dmat, 901 &sc->age_rdata.age_smb_block_seg, 1); 902 return error; 903 } 904 905 sc->age_rdata.age_smb_block_paddr = 906 sc->age_cdata.age_smb_block_map->dm_segs[0].ds_addr; 907 908 /* 909 * All of the memory we allocated above needs to be within 910 * the same 4GB segment. Make sure this is so. 911 * 912 * XXX We don't care WHAT 4GB segment they're in, just that 913 * XXX they're all in the same one. Need some bus_dma API 914 * XXX help to make this easier to enforce when we actually 915 * XXX perform the allocation. 916 */ 917 if (! (AGE_ADDR_HI(sc->age_rdata.age_tx_ring_paddr) == 918 AGE_ADDR_HI(sc->age_rdata.age_rx_ring_paddr) 919 920 && AGE_ADDR_HI(sc->age_rdata.age_tx_ring_paddr) == 921 AGE_ADDR_HI(sc->age_rdata.age_rr_ring_paddr) 922 923 && AGE_ADDR_HI(sc->age_rdata.age_tx_ring_paddr) == 924 AGE_ADDR_HI(sc->age_rdata.age_cmb_block_paddr) 925 926 && AGE_ADDR_HI(sc->age_rdata.age_tx_ring_paddr) == 927 AGE_ADDR_HI(sc->age_rdata.age_smb_block_paddr))) { 928 aprint_error_dev(sc->sc_dev, 929 "control data allocation constraints failed\n"); 930 return ENOBUFS; 931 } 932 933 /* Create DMA maps for Tx buffers. */ 934 for (i = 0; i < AGE_TX_RING_CNT; i++) { 935 txd = &sc->age_cdata.age_txdesc[i]; 936 txd->tx_m = NULL; 937 txd->tx_dmamap = NULL; 938 error = bus_dmamap_create(sc->sc_dmat, AGE_TSO_MAXSIZE, 939 AGE_MAXTXSEGS, AGE_TSO_MAXSEGSIZE, 0, BUS_DMA_NOWAIT, 940 &txd->tx_dmamap); 941 if (error) { 942 txd->tx_dmamap = NULL; 943 printf("%s: could not create Tx dmamap, error = %i.\n", 944 device_xname(sc->sc_dev), error); 945 return error; 946 } 947 } 948 949 /* Create DMA maps for Rx buffers. */ 950 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, MCLBYTES, 0, 951 BUS_DMA_NOWAIT, &sc->age_cdata.age_rx_sparemap); 952 if (error) { 953 sc->age_cdata.age_rx_sparemap = NULL; 954 printf("%s: could not create spare Rx dmamap, error = %i.\n", 955 device_xname(sc->sc_dev), error); 956 return error; 957 } 958 for (i = 0; i < AGE_RX_RING_CNT; i++) { 959 rxd = &sc->age_cdata.age_rxdesc[i]; 960 rxd->rx_m = NULL; 961 rxd->rx_dmamap = NULL; 962 error = bus_dmamap_create(sc->sc_dmat, MCLBYTES, 1, 963 MCLBYTES, 0, BUS_DMA_NOWAIT, &rxd->rx_dmamap); 964 if (error) { 965 rxd->rx_dmamap = NULL; 966 printf("%s: could not create Rx dmamap, error = %i.\n", 967 device_xname(sc->sc_dev), error); 968 return error; 969 } 970 } 971 972 return 0; 973 } 974 975 static void 976 age_dma_free(struct age_softc *sc) 977 { 978 struct age_txdesc *txd; 979 struct age_rxdesc *rxd; 980 int i; 981 982 /* Tx buffers */ 983 for (i = 0; i < AGE_TX_RING_CNT; i++) { 984 txd = &sc->age_cdata.age_txdesc[i]; 985 if (txd->tx_dmamap != NULL) { 986 bus_dmamap_destroy(sc->sc_dmat, txd->tx_dmamap); 987 txd->tx_dmamap = NULL; 988 } 989 } 990 /* Rx buffers */ 991 for (i = 0; i < AGE_RX_RING_CNT; i++) { 992 rxd = &sc->age_cdata.age_rxdesc[i]; 993 if (rxd->rx_dmamap != NULL) { 994 bus_dmamap_destroy(sc->sc_dmat, rxd->rx_dmamap); 995 rxd->rx_dmamap = NULL; 996 } 997 } 998 if (sc->age_cdata.age_rx_sparemap != NULL) { 999 bus_dmamap_destroy(sc->sc_dmat, sc->age_cdata.age_rx_sparemap); 1000 sc->age_cdata.age_rx_sparemap = NULL; 1001 } 1002 1003 /* Tx ring. */ 1004 if (sc->age_cdata.age_tx_ring_map != NULL) 1005 bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_tx_ring_map); 1006 if (sc->age_cdata.age_tx_ring_map != NULL && 1007 sc->age_rdata.age_tx_ring != NULL) 1008 bus_dmamem_free(sc->sc_dmat, 1009 &sc->age_rdata.age_tx_ring_seg, 1); 1010 sc->age_rdata.age_tx_ring = NULL; 1011 sc->age_cdata.age_tx_ring_map = NULL; 1012 1013 /* Rx ring. */ 1014 if (sc->age_cdata.age_rx_ring_map != NULL) 1015 bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_rx_ring_map); 1016 if (sc->age_cdata.age_rx_ring_map != NULL && 1017 sc->age_rdata.age_rx_ring != NULL) 1018 bus_dmamem_free(sc->sc_dmat, 1019 &sc->age_rdata.age_rx_ring_seg, 1); 1020 sc->age_rdata.age_rx_ring = NULL; 1021 sc->age_cdata.age_rx_ring_map = NULL; 1022 1023 /* Rx return ring. */ 1024 if (sc->age_cdata.age_rr_ring_map != NULL) 1025 bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_rr_ring_map); 1026 if (sc->age_cdata.age_rr_ring_map != NULL && 1027 sc->age_rdata.age_rr_ring != NULL) 1028 bus_dmamem_free(sc->sc_dmat, 1029 &sc->age_rdata.age_rr_ring_seg, 1); 1030 sc->age_rdata.age_rr_ring = NULL; 1031 sc->age_cdata.age_rr_ring_map = NULL; 1032 1033 /* CMB block */ 1034 if (sc->age_cdata.age_cmb_block_map != NULL) 1035 bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_cmb_block_map); 1036 if (sc->age_cdata.age_cmb_block_map != NULL && 1037 sc->age_rdata.age_cmb_block != NULL) 1038 bus_dmamem_free(sc->sc_dmat, 1039 &sc->age_rdata.age_cmb_block_seg, 1); 1040 sc->age_rdata.age_cmb_block = NULL; 1041 sc->age_cdata.age_cmb_block_map = NULL; 1042 1043 /* SMB block */ 1044 if (sc->age_cdata.age_smb_block_map != NULL) 1045 bus_dmamap_unload(sc->sc_dmat, sc->age_cdata.age_smb_block_map); 1046 if (sc->age_cdata.age_smb_block_map != NULL && 1047 sc->age_rdata.age_smb_block != NULL) 1048 bus_dmamem_free(sc->sc_dmat, 1049 &sc->age_rdata.age_smb_block_seg, 1); 1050 sc->age_rdata.age_smb_block = NULL; 1051 sc->age_cdata.age_smb_block_map = NULL; 1052 } 1053 1054 static void 1055 age_start(struct ifnet *ifp) 1056 { 1057 struct age_softc *sc = ifp->if_softc; 1058 struct mbuf *m_head; 1059 int enq, error; 1060 1061 if ((ifp->if_flags & (IFF_RUNNING | IFF_OACTIVE)) != IFF_RUNNING) 1062 return; 1063 if ((sc->age_flags & AGE_FLAG_LINK) == 0) 1064 return; 1065 if (IFQ_IS_EMPTY(&ifp->if_snd)) 1066 return; 1067 1068 enq = 0; 1069 for (;;) { 1070 IFQ_DEQUEUE(&ifp->if_snd, m_head); 1071 if (m_head == NULL) 1072 break; 1073 1074 /* 1075 * Pack the data into the transmit ring. If we 1076 * don't have room, set the OACTIVE flag and wait 1077 * for the NIC to drain the ring. 1078 */ 1079 if ((error = age_encap(sc, m_head)) != 0) { 1080 if (error == EFBIG) { 1081 /* This is fatal for the packet. */ 1082 m_freem(m_head); 1083 if_statinc(ifp, if_oerrors); 1084 continue; 1085 } 1086 IF_PREPEND(&ifp->if_snd, m_head); 1087 ifp->if_flags |= IFF_OACTIVE; 1088 break; 1089 } 1090 enq = 1; 1091 1092 /* 1093 * If there's a BPF listener, bounce a copy of this frame 1094 * to him. 1095 */ 1096 bpf_mtap(ifp, m_head, BPF_D_OUT); 1097 } 1098 1099 if (enq) { 1100 /* Update mbox. */ 1101 AGE_COMMIT_MBOX(sc); 1102 /* Set a timeout in case the chip goes out to lunch. */ 1103 ifp->if_timer = AGE_TX_TIMEOUT; 1104 } 1105 } 1106 1107 static void 1108 age_watchdog(struct ifnet *ifp) 1109 { 1110 struct age_softc *sc = ifp->if_softc; 1111 1112 if ((sc->age_flags & AGE_FLAG_LINK) == 0) { 1113 printf("%s: watchdog timeout (missed link)\n", 1114 device_xname(sc->sc_dev)); 1115 if_statinc(ifp, if_oerrors); 1116 age_init(ifp); 1117 return; 1118 } 1119 1120 if (sc->age_cdata.age_tx_cnt == 0) { 1121 printf("%s: watchdog timeout (missed Tx interrupts) " 1122 "-- recovering\n", device_xname(sc->sc_dev)); 1123 age_start(ifp); 1124 return; 1125 } 1126 1127 printf("%s: watchdog timeout\n", device_xname(sc->sc_dev)); 1128 if_statinc(ifp, if_oerrors); 1129 age_init(ifp); 1130 age_start(ifp); 1131 } 1132 1133 static bool 1134 age_shutdown(device_t self, int howto) 1135 { 1136 struct age_softc *sc; 1137 struct ifnet *ifp; 1138 1139 sc = device_private(self); 1140 ifp = &sc->sc_ec.ec_if; 1141 age_stop(ifp, 1); 1142 1143 return true; 1144 } 1145 1146 static int 1147 age_ioctl(struct ifnet *ifp, u_long cmd, void *data) 1148 { 1149 struct age_softc *sc = ifp->if_softc; 1150 int s, error; 1151 1152 s = splnet(); 1153 1154 error = ether_ioctl(ifp, cmd, data); 1155 if (error == ENETRESET) { 1156 if (ifp->if_flags & IFF_RUNNING) 1157 age_rxfilter(sc); 1158 error = 0; 1159 } 1160 1161 splx(s); 1162 return error; 1163 } 1164 1165 static void 1166 age_mac_config(struct age_softc *sc) 1167 { 1168 struct mii_data *mii; 1169 uint32_t reg; 1170 1171 mii = &sc->sc_miibus; 1172 1173 reg = CSR_READ_4(sc, AGE_MAC_CFG); 1174 reg &= ~MAC_CFG_FULL_DUPLEX; 1175 reg &= ~(MAC_CFG_TX_FC | MAC_CFG_RX_FC); 1176 reg &= ~MAC_CFG_SPEED_MASK; 1177 1178 /* Reprogram MAC with resolved speed/duplex. */ 1179 switch (IFM_SUBTYPE(mii->mii_media_active)) { 1180 case IFM_10_T: 1181 case IFM_100_TX: 1182 reg |= MAC_CFG_SPEED_10_100; 1183 break; 1184 case IFM_1000_T: 1185 reg |= MAC_CFG_SPEED_1000; 1186 break; 1187 } 1188 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) { 1189 reg |= MAC_CFG_FULL_DUPLEX; 1190 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0) 1191 reg |= MAC_CFG_TX_FC; 1192 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0) 1193 reg |= MAC_CFG_RX_FC; 1194 } 1195 1196 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 1197 } 1198 1199 static bool 1200 age_resume(device_t dv, const pmf_qual_t *qual) 1201 { 1202 struct age_softc *sc = device_private(dv); 1203 uint16_t cmd; 1204 1205 /* 1206 * Clear INTx emulation disable for hardware that 1207 * is set in resume event. From Linux. 1208 */ 1209 cmd = pci_conf_read(sc->sc_pct, sc->sc_pcitag, PCI_COMMAND_STATUS_REG); 1210 if ((cmd & PCI_COMMAND_INTERRUPT_DISABLE) != 0) { 1211 cmd &= ~PCI_COMMAND_INTERRUPT_DISABLE; 1212 pci_conf_write(sc->sc_pct, sc->sc_pcitag, 1213 PCI_COMMAND_STATUS_REG, cmd); 1214 } 1215 1216 return true; 1217 } 1218 1219 static int 1220 age_encap(struct age_softc *sc, struct mbuf * const m) 1221 { 1222 struct age_txdesc *txd, *txd_last; 1223 struct tx_desc *desc; 1224 bus_dmamap_t map; 1225 uint32_t cflags, poff, vtag; 1226 int error, i, nsegs, prod; 1227 1228 cflags = vtag = 0; 1229 poff = 0; 1230 1231 prod = sc->age_cdata.age_tx_prod; 1232 txd = &sc->age_cdata.age_txdesc[prod]; 1233 txd_last = txd; 1234 map = txd->tx_dmamap; 1235 1236 error = bus_dmamap_load_mbuf(sc->sc_dmat, map, m, BUS_DMA_NOWAIT); 1237 if (error == EFBIG) { 1238 struct mbuf *mnew = m_defrag(m, M_NOWAIT); 1239 if (mnew != NULL) { 1240 KASSERT(m == mnew); 1241 error = bus_dmamap_load_mbuf(sc->sc_dmat, map, mnew, 1242 BUS_DMA_NOWAIT); 1243 } else { 1244 /* Just drop if we can't defrag. */ 1245 error = EFBIG; 1246 } 1247 if (error) { 1248 if (error == EFBIG) { 1249 printf("%s: Tx packet consumes too many " 1250 "DMA segments, dropping...\n", 1251 device_xname(sc->sc_dev)); 1252 } 1253 return error; 1254 } 1255 } else if (error) { 1256 return error; 1257 } 1258 1259 nsegs = map->dm_nsegs; 1260 KASSERT(nsegs != 0); 1261 1262 /* Check descriptor overrun. */ 1263 if (sc->age_cdata.age_tx_cnt + nsegs >= AGE_TX_RING_CNT - 2) { 1264 bus_dmamap_unload(sc->sc_dmat, map); 1265 return ENOBUFS; 1266 } 1267 bus_dmamap_sync(sc->sc_dmat, map, 0, map->dm_mapsize, 1268 BUS_DMASYNC_PREWRITE); 1269 1270 /* Configure Tx IP/TCP/UDP checksum offload. */ 1271 if ((m->m_pkthdr.csum_flags & AGE_CSUM_FEATURES) != 0) { 1272 cflags |= AGE_TD_CSUM; 1273 if ((m->m_pkthdr.csum_flags & M_CSUM_TCPv4) != 0) 1274 cflags |= AGE_TD_TCPCSUM; 1275 if ((m->m_pkthdr.csum_flags & M_CSUM_UDPv4) != 0) 1276 cflags |= AGE_TD_UDPCSUM; 1277 /* Set checksum start offset. */ 1278 cflags |= (poff << AGE_TD_CSUM_PLOADOFFSET_SHIFT); 1279 } 1280 1281 #if NVLAN > 0 1282 /* Configure VLAN hardware tag insertion. */ 1283 if (vlan_has_tag(m)) { 1284 vtag = AGE_TX_VLAN_TAG(htons(vlan_get_tag(m))); 1285 vtag = ((vtag << AGE_TD_VLAN_SHIFT) & AGE_TD_VLAN_MASK); 1286 cflags |= AGE_TD_INSERT_VLAN_TAG; 1287 } 1288 #endif 1289 1290 desc = NULL; 1291 KASSERT(nsegs > 0); 1292 for (i = 0; ; i++) { 1293 desc = &sc->age_rdata.age_tx_ring[prod]; 1294 desc->addr = htole64(map->dm_segs[i].ds_addr); 1295 desc->len = 1296 htole32(AGE_TX_BYTES(map->dm_segs[i].ds_len) | vtag); 1297 desc->flags = htole32(cflags); 1298 sc->age_cdata.age_tx_cnt++; 1299 if (i == (nsegs - 1)) 1300 break; 1301 1302 /* Sync this descriptor and go to the next one */ 1303 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 1304 prod * sizeof(struct tx_desc), sizeof(struct tx_desc), 1305 BUS_DMASYNC_PREWRITE); 1306 AGE_DESC_INC(prod, AGE_TX_RING_CNT); 1307 } 1308 1309 /* Set EOP on the last descriptor and sync it. */ 1310 desc->flags |= htole32(AGE_TD_EOP); 1311 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 1312 prod * sizeof(struct tx_desc), sizeof(struct tx_desc), 1313 BUS_DMASYNC_PREWRITE); 1314 1315 if (nsegs > 1) { 1316 /* Swap dmamap of the first and the last. */ 1317 txd = &sc->age_cdata.age_txdesc[prod]; 1318 map = txd_last->tx_dmamap; 1319 txd_last->tx_dmamap = txd->tx_dmamap; 1320 txd->tx_dmamap = map; 1321 txd->tx_m = m; 1322 KASSERT(txd_last->tx_m == NULL); 1323 } else { 1324 KASSERT(txd_last == &sc->age_cdata.age_txdesc[prod]); 1325 txd_last->tx_m = m; 1326 } 1327 1328 /* Update producer index. */ 1329 AGE_DESC_INC(prod, AGE_TX_RING_CNT); 1330 sc->age_cdata.age_tx_prod = prod; 1331 1332 return 0; 1333 } 1334 1335 static void 1336 age_txintr(struct age_softc *sc, int tpd_cons) 1337 { 1338 struct ifnet *ifp = &sc->sc_ec.ec_if; 1339 struct age_txdesc *txd; 1340 int cons, prog; 1341 1342 if (sc->age_cdata.age_tx_cnt <= 0) { 1343 if (ifp->if_timer != 0) 1344 printf("timer running without packets\n"); 1345 if (sc->age_cdata.age_tx_cnt) 1346 printf("age_tx_cnt corrupted\n"); 1347 } 1348 1349 /* 1350 * Go through our Tx list and free mbufs for those 1351 * frames which have been transmitted. 1352 */ 1353 cons = sc->age_cdata.age_tx_cons; 1354 for (prog = 0; cons != tpd_cons; AGE_DESC_INC(cons, AGE_TX_RING_CNT)) { 1355 if (sc->age_cdata.age_tx_cnt <= 0) 1356 break; 1357 prog++; 1358 ifp->if_flags &= ~IFF_OACTIVE; 1359 sc->age_cdata.age_tx_cnt--; 1360 txd = &sc->age_cdata.age_txdesc[cons]; 1361 /* 1362 * Clear Tx descriptors, it's not required but would 1363 * help debugging in case of Tx issues. 1364 */ 1365 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 1366 cons * sizeof(struct tx_desc), sizeof(struct tx_desc), 1367 BUS_DMASYNC_POSTWRITE); 1368 txd->tx_desc->addr = 0; 1369 txd->tx_desc->len = 0; 1370 txd->tx_desc->flags = 0; 1371 1372 if (txd->tx_m == NULL) 1373 continue; 1374 /* Reclaim transmitted mbufs. */ 1375 bus_dmamap_unload(sc->sc_dmat, txd->tx_dmamap); 1376 m_freem(txd->tx_m); 1377 txd->tx_m = NULL; 1378 } 1379 1380 if (prog > 0) { 1381 sc->age_cdata.age_tx_cons = cons; 1382 1383 /* 1384 * Unarm watchdog timer only when there are no pending 1385 * Tx descriptors in queue. 1386 */ 1387 if (sc->age_cdata.age_tx_cnt == 0) 1388 ifp->if_timer = 0; 1389 } 1390 } 1391 1392 /* Receive a frame. */ 1393 static void 1394 age_rxeof(struct age_softc *sc, struct rx_rdesc *rxrd) 1395 { 1396 struct ifnet *ifp = &sc->sc_ec.ec_if; 1397 struct age_rxdesc *rxd; 1398 struct rx_desc *desc; 1399 struct mbuf *mp, *m; 1400 uint32_t status, index; 1401 int count, nsegs, pktlen; 1402 int rx_cons; 1403 1404 status = le32toh(rxrd->flags); 1405 index = le32toh(rxrd->index); 1406 rx_cons = AGE_RX_CONS(index); 1407 nsegs = AGE_RX_NSEGS(index); 1408 1409 sc->age_cdata.age_rxlen = AGE_RX_BYTES(le32toh(rxrd->len)); 1410 if ((status & AGE_RRD_ERROR) != 0 && 1411 (status & (AGE_RRD_CRC | AGE_RRD_CODE | AGE_RRD_DRIBBLE | 1412 AGE_RRD_RUNT | AGE_RRD_OFLOW | AGE_RRD_TRUNC)) != 0) { 1413 /* 1414 * We want to pass the following frames to upper 1415 * layer regardless of error status of Rx return 1416 * ring. 1417 * 1418 * o IP/TCP/UDP checksum is bad. 1419 * o frame length and protocol specific length 1420 * does not match. 1421 */ 1422 sc->age_cdata.age_rx_cons += nsegs; 1423 sc->age_cdata.age_rx_cons %= AGE_RX_RING_CNT; 1424 return; 1425 } 1426 1427 pktlen = 0; 1428 for (count = 0; count < nsegs; count++, 1429 AGE_DESC_INC(rx_cons, AGE_RX_RING_CNT)) { 1430 rxd = &sc->age_cdata.age_rxdesc[rx_cons]; 1431 mp = rxd->rx_m; 1432 desc = rxd->rx_desc; 1433 /* Add a new receive buffer to the ring. */ 1434 if (age_newbuf(sc, rxd, 0) != 0) { 1435 if_statinc(ifp, if_iqdrops); 1436 /* Reuse Rx buffers. */ 1437 if (sc->age_cdata.age_rxhead != NULL) { 1438 m_freem(sc->age_cdata.age_rxhead); 1439 AGE_RXCHAIN_RESET(sc); 1440 } 1441 break; 1442 } 1443 1444 /* The length of the first mbuf is computed last. */ 1445 if (count != 0) { 1446 mp->m_len = AGE_RX_BYTES(le32toh(desc->len)); 1447 pktlen += mp->m_len; 1448 } 1449 1450 /* Chain received mbufs. */ 1451 if (sc->age_cdata.age_rxhead == NULL) { 1452 sc->age_cdata.age_rxhead = mp; 1453 sc->age_cdata.age_rxtail = mp; 1454 } else { 1455 m_remove_pkthdr(mp); 1456 sc->age_cdata.age_rxprev_tail = 1457 sc->age_cdata.age_rxtail; 1458 sc->age_cdata.age_rxtail->m_next = mp; 1459 sc->age_cdata.age_rxtail = mp; 1460 } 1461 1462 if (count == nsegs - 1) { 1463 /* 1464 * It seems that L1 controller has no way 1465 * to tell hardware to strip CRC bytes. 1466 */ 1467 sc->age_cdata.age_rxlen -= ETHER_CRC_LEN; 1468 if (nsegs > 1) { 1469 /* Remove the CRC bytes in chained mbufs. */ 1470 pktlen -= ETHER_CRC_LEN; 1471 if (mp->m_len <= ETHER_CRC_LEN) { 1472 sc->age_cdata.age_rxtail = 1473 sc->age_cdata.age_rxprev_tail; 1474 sc->age_cdata.age_rxtail->m_len -= 1475 (ETHER_CRC_LEN - mp->m_len); 1476 sc->age_cdata.age_rxtail->m_next = NULL; 1477 m_freem(mp); 1478 } else { 1479 mp->m_len -= ETHER_CRC_LEN; 1480 } 1481 } 1482 1483 m = sc->age_cdata.age_rxhead; 1484 KASSERT(m->m_flags & M_PKTHDR); 1485 m_set_rcvif(m, ifp); 1486 m->m_pkthdr.len = sc->age_cdata.age_rxlen; 1487 /* Set the first mbuf length. */ 1488 m->m_len = sc->age_cdata.age_rxlen - pktlen; 1489 1490 /* 1491 * Set checksum information. 1492 * It seems that L1 controller can compute partial 1493 * checksum. The partial checksum value can be used 1494 * to accelerate checksum computation for fragmented 1495 * TCP/UDP packets. Upper network stack already 1496 * takes advantage of the partial checksum value in 1497 * IP reassembly stage. But I'm not sure the 1498 * correctness of the partial hardware checksum 1499 * assistance due to lack of data sheet. If it is 1500 * proven to work on L1 I'll enable it. 1501 */ 1502 if (status & AGE_RRD_IPV4) { 1503 if (status & AGE_RRD_IPCSUM_NOK) 1504 m->m_pkthdr.csum_flags |= 1505 M_CSUM_IPv4_BAD; 1506 if ((status & (AGE_RRD_TCP | AGE_RRD_UDP)) && 1507 (status & AGE_RRD_TCP_UDPCSUM_NOK)) { 1508 m->m_pkthdr.csum_flags |= 1509 M_CSUM_TCP_UDP_BAD; 1510 } 1511 /* 1512 * Don't mark bad checksum for TCP/UDP frames 1513 * as fragmented frames may always have set 1514 * bad checksummed bit of descriptor status. 1515 */ 1516 } 1517 #if NVLAN > 0 1518 /* Check for VLAN tagged frames. */ 1519 if (status & AGE_RRD_VLAN) { 1520 uint32_t vtag = AGE_RX_VLAN(le32toh(rxrd->vtags)); 1521 vlan_set_tag(m, AGE_RX_VLAN_TAG(vtag)); 1522 } 1523 #endif 1524 1525 /* Pass it on. */ 1526 if_percpuq_enqueue(ifp->if_percpuq, m); 1527 1528 /* Reset mbuf chains. */ 1529 AGE_RXCHAIN_RESET(sc); 1530 } 1531 } 1532 1533 if (count != nsegs) { 1534 sc->age_cdata.age_rx_cons += nsegs; 1535 sc->age_cdata.age_rx_cons %= AGE_RX_RING_CNT; 1536 } else 1537 sc->age_cdata.age_rx_cons = rx_cons; 1538 } 1539 1540 static void 1541 age_rxintr(struct age_softc *sc, int rr_prod) 1542 { 1543 struct rx_rdesc *rxrd; 1544 int rr_cons, nsegs, pktlen, prog; 1545 1546 rr_cons = sc->age_cdata.age_rr_cons; 1547 if (rr_cons == rr_prod) 1548 return; 1549 1550 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_rr_ring_map, 0, 1551 sc->age_cdata.age_rr_ring_map->dm_mapsize, 1552 BUS_DMASYNC_POSTREAD); 1553 1554 for (prog = 0; rr_cons != rr_prod; prog++) { 1555 rxrd = &sc->age_rdata.age_rr_ring[rr_cons]; 1556 nsegs = AGE_RX_NSEGS(le32toh(rxrd->index)); 1557 if (nsegs == 0) 1558 break; 1559 /* 1560 * Check number of segments against received bytes 1561 * Non-matching value would indicate that hardware 1562 * is still trying to update Rx return descriptors. 1563 * I'm not sure whether this check is really needed. 1564 */ 1565 pktlen = AGE_RX_BYTES(le32toh(rxrd->len)); 1566 if (nsegs != ((pktlen + (MCLBYTES - ETHER_ALIGN - 1)) / 1567 (MCLBYTES - ETHER_ALIGN))) 1568 break; 1569 1570 /* Received a frame. */ 1571 age_rxeof(sc, rxrd); 1572 1573 /* Clear return ring. */ 1574 rxrd->index = 0; 1575 AGE_DESC_INC(rr_cons, AGE_RR_RING_CNT); 1576 } 1577 1578 if (prog > 0) { 1579 /* Update the consumer index. */ 1580 sc->age_cdata.age_rr_cons = rr_cons; 1581 1582 /* Sync descriptors. */ 1583 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_rr_ring_map, 0, 1584 sc->age_cdata.age_rr_ring_map->dm_mapsize, 1585 BUS_DMASYNC_PREWRITE); 1586 1587 /* Notify hardware availability of new Rx buffers. */ 1588 AGE_COMMIT_MBOX(sc); 1589 } 1590 } 1591 1592 static void 1593 age_tick(void *xsc) 1594 { 1595 struct age_softc *sc = xsc; 1596 struct mii_data *mii = &sc->sc_miibus; 1597 int s; 1598 1599 s = splnet(); 1600 mii_tick(mii); 1601 splx(s); 1602 1603 callout_schedule(&sc->sc_tick_ch, hz); 1604 } 1605 1606 static void 1607 age_reset(struct age_softc *sc) 1608 { 1609 uint32_t reg; 1610 int i; 1611 1612 CSR_WRITE_4(sc, AGE_MASTER_CFG, MASTER_RESET); 1613 CSR_READ_4(sc, AGE_MASTER_CFG); 1614 DELAY(1000); 1615 for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 1616 if ((reg = CSR_READ_4(sc, AGE_IDLE_STATUS)) == 0) 1617 break; 1618 DELAY(10); 1619 } 1620 1621 if (i == 0) 1622 printf("%s: reset timeout(0x%08x)!\n", device_xname(sc->sc_dev), 1623 reg); 1624 1625 /* Initialize PCIe module. From Linux. */ 1626 CSR_WRITE_4(sc, 0x12FC, 0x6500); 1627 CSR_WRITE_4(sc, 0x1008, CSR_READ_4(sc, 0x1008) | 0x8000); 1628 } 1629 1630 static int 1631 age_init(struct ifnet *ifp) 1632 { 1633 struct age_softc *sc = ifp->if_softc; 1634 struct mii_data *mii; 1635 uint8_t eaddr[ETHER_ADDR_LEN]; 1636 bus_addr_t paddr; 1637 uint32_t reg, fsize; 1638 uint32_t rxf_hi, rxf_lo, rrd_hi, rrd_lo; 1639 int error; 1640 1641 /* 1642 * Cancel any pending I/O. 1643 */ 1644 age_stop(ifp, 0); 1645 1646 /* 1647 * Reset the chip to a known state. 1648 */ 1649 age_reset(sc); 1650 1651 /* Initialize descriptors. */ 1652 error = age_init_rx_ring(sc); 1653 if (error != 0) { 1654 printf("%s: no memory for Rx buffers.\n", device_xname(sc->sc_dev)); 1655 age_stop(ifp, 0); 1656 return error; 1657 } 1658 age_init_rr_ring(sc); 1659 age_init_tx_ring(sc); 1660 age_init_cmb_block(sc); 1661 age_init_smb_block(sc); 1662 1663 /* Reprogram the station address. */ 1664 memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr)); 1665 CSR_WRITE_4(sc, AGE_PAR0, 1666 eaddr[2] << 24 | eaddr[3] << 16 | eaddr[4] << 8 | eaddr[5]); 1667 CSR_WRITE_4(sc, AGE_PAR1, eaddr[0] << 8 | eaddr[1]); 1668 1669 /* Set descriptor base addresses. */ 1670 paddr = sc->age_rdata.age_tx_ring_paddr; 1671 CSR_WRITE_4(sc, AGE_DESC_ADDR_HI, AGE_ADDR_HI(paddr)); 1672 paddr = sc->age_rdata.age_rx_ring_paddr; 1673 CSR_WRITE_4(sc, AGE_DESC_RD_ADDR_LO, AGE_ADDR_LO(paddr)); 1674 paddr = sc->age_rdata.age_rr_ring_paddr; 1675 CSR_WRITE_4(sc, AGE_DESC_RRD_ADDR_LO, AGE_ADDR_LO(paddr)); 1676 paddr = sc->age_rdata.age_tx_ring_paddr; 1677 CSR_WRITE_4(sc, AGE_DESC_TPD_ADDR_LO, AGE_ADDR_LO(paddr)); 1678 paddr = sc->age_rdata.age_cmb_block_paddr; 1679 CSR_WRITE_4(sc, AGE_DESC_CMB_ADDR_LO, AGE_ADDR_LO(paddr)); 1680 paddr = sc->age_rdata.age_smb_block_paddr; 1681 CSR_WRITE_4(sc, AGE_DESC_SMB_ADDR_LO, AGE_ADDR_LO(paddr)); 1682 1683 /* Set Rx/Rx return descriptor counter. */ 1684 CSR_WRITE_4(sc, AGE_DESC_RRD_RD_CNT, 1685 ((AGE_RR_RING_CNT << DESC_RRD_CNT_SHIFT) & 1686 DESC_RRD_CNT_MASK) | 1687 ((AGE_RX_RING_CNT << DESC_RD_CNT_SHIFT) & DESC_RD_CNT_MASK)); 1688 1689 /* Set Tx descriptor counter. */ 1690 CSR_WRITE_4(sc, AGE_DESC_TPD_CNT, 1691 (AGE_TX_RING_CNT << DESC_TPD_CNT_SHIFT) & DESC_TPD_CNT_MASK); 1692 1693 /* Tell hardware that we're ready to load descriptors. */ 1694 CSR_WRITE_4(sc, AGE_DMA_BLOCK, DMA_BLOCK_LOAD); 1695 1696 /* 1697 * Initialize mailbox register. 1698 * Updated producer/consumer index information is exchanged 1699 * through this mailbox register. However Tx producer and 1700 * Rx return consumer/Rx producer are all shared such that 1701 * it's hard to separate code path between Tx and Rx without 1702 * locking. If L1 hardware have a separate mail box register 1703 * for Tx and Rx consumer/producer management we could have 1704 * independent Tx/Rx handler which in turn Rx handler could have 1705 * been run without any locking. 1706 */ 1707 AGE_COMMIT_MBOX(sc); 1708 1709 /* Configure IPG/IFG parameters. */ 1710 CSR_WRITE_4(sc, AGE_IPG_IFG_CFG, 1711 ((IPG_IFG_IPG2_DEFAULT << IPG_IFG_IPG2_SHIFT) & IPG_IFG_IPG2_MASK) | 1712 ((IPG_IFG_IPG1_DEFAULT << IPG_IFG_IPG1_SHIFT) & IPG_IFG_IPG1_MASK) | 1713 ((IPG_IFG_MIFG_DEFAULT << IPG_IFG_MIFG_SHIFT) & IPG_IFG_MIFG_MASK) | 1714 ((IPG_IFG_IPGT_DEFAULT << IPG_IFG_IPGT_SHIFT) & IPG_IFG_IPGT_MASK)); 1715 1716 /* Set parameters for half-duplex media. */ 1717 CSR_WRITE_4(sc, AGE_HDPX_CFG, 1718 ((HDPX_CFG_LCOL_DEFAULT << HDPX_CFG_LCOL_SHIFT) & 1719 HDPX_CFG_LCOL_MASK) | 1720 ((HDPX_CFG_RETRY_DEFAULT << HDPX_CFG_RETRY_SHIFT) & 1721 HDPX_CFG_RETRY_MASK) | HDPX_CFG_EXC_DEF_EN | 1722 ((HDPX_CFG_ABEBT_DEFAULT << HDPX_CFG_ABEBT_SHIFT) & 1723 HDPX_CFG_ABEBT_MASK) | 1724 ((HDPX_CFG_JAMIPG_DEFAULT << HDPX_CFG_JAMIPG_SHIFT) & 1725 HDPX_CFG_JAMIPG_MASK)); 1726 1727 /* Configure interrupt moderation timer. */ 1728 sc->age_int_mod = AGE_IM_TIMER_DEFAULT; 1729 CSR_WRITE_2(sc, AGE_IM_TIMER, AGE_USECS(sc->age_int_mod)); 1730 reg = CSR_READ_4(sc, AGE_MASTER_CFG); 1731 reg &= ~MASTER_MTIMER_ENB; 1732 if (AGE_USECS(sc->age_int_mod) == 0) 1733 reg &= ~MASTER_ITIMER_ENB; 1734 else 1735 reg |= MASTER_ITIMER_ENB; 1736 CSR_WRITE_4(sc, AGE_MASTER_CFG, reg); 1737 if (agedebug) 1738 printf("%s: interrupt moderation is %d us.\n", 1739 device_xname(sc->sc_dev), sc->age_int_mod); 1740 CSR_WRITE_2(sc, AGE_INTR_CLR_TIMER, AGE_USECS(1000)); 1741 1742 /* Set Maximum frame size but don't let MTU be lass than ETHER_MTU. */ 1743 if (ifp->if_mtu < ETHERMTU) 1744 sc->age_max_frame_size = ETHERMTU; 1745 else 1746 sc->age_max_frame_size = ifp->if_mtu; 1747 sc->age_max_frame_size += ETHER_HDR_LEN + 1748 sizeof(struct ether_vlan_header) + ETHER_CRC_LEN; 1749 CSR_WRITE_4(sc, AGE_FRAME_SIZE, sc->age_max_frame_size); 1750 1751 /* Configure jumbo frame. */ 1752 fsize = roundup(sc->age_max_frame_size, sizeof(uint64_t)); 1753 CSR_WRITE_4(sc, AGE_RXQ_JUMBO_CFG, 1754 (((fsize / sizeof(uint64_t)) << 1755 RXQ_JUMBO_CFG_SZ_THRESH_SHIFT) & RXQ_JUMBO_CFG_SZ_THRESH_MASK) | 1756 ((RXQ_JUMBO_CFG_LKAH_DEFAULT << 1757 RXQ_JUMBO_CFG_LKAH_SHIFT) & RXQ_JUMBO_CFG_LKAH_MASK) | 1758 ((AGE_USECS(8) << RXQ_JUMBO_CFG_RRD_TIMER_SHIFT) & 1759 RXQ_JUMBO_CFG_RRD_TIMER_MASK)); 1760 1761 /* Configure flow-control parameters. From Linux. */ 1762 if ((sc->age_flags & AGE_FLAG_PCIE) != 0) { 1763 /* 1764 * Magic workaround for old-L1. 1765 * Don't know which hw revision requires this magic. 1766 */ 1767 CSR_WRITE_4(sc, 0x12FC, 0x6500); 1768 /* 1769 * Another magic workaround for flow-control mode 1770 * change. From Linux. 1771 */ 1772 CSR_WRITE_4(sc, 0x1008, CSR_READ_4(sc, 0x1008) | 0x8000); 1773 } 1774 /* 1775 * TODO 1776 * Should understand pause parameter relationships between FIFO 1777 * size and number of Rx descriptors and Rx return descriptors. 1778 * 1779 * Magic parameters came from Linux. 1780 */ 1781 switch (sc->age_chip_rev) { 1782 case 0x8001: 1783 case 0x9001: 1784 case 0x9002: 1785 case 0x9003: 1786 rxf_hi = AGE_RX_RING_CNT / 16; 1787 rxf_lo = (AGE_RX_RING_CNT * 7) / 8; 1788 rrd_hi = (AGE_RR_RING_CNT * 7) / 8; 1789 rrd_lo = AGE_RR_RING_CNT / 16; 1790 break; 1791 default: 1792 reg = CSR_READ_4(sc, AGE_SRAM_RX_FIFO_LEN); 1793 rxf_lo = reg / 16; 1794 if (rxf_lo < 192) 1795 rxf_lo = 192; 1796 rxf_hi = (reg * 7) / 8; 1797 if (rxf_hi < rxf_lo) 1798 rxf_hi = rxf_lo + 16; 1799 reg = CSR_READ_4(sc, AGE_SRAM_RRD_LEN); 1800 rrd_lo = reg / 8; 1801 rrd_hi = (reg * 7) / 8; 1802 if (rrd_lo < 2) 1803 rrd_lo = 2; 1804 if (rrd_hi < rrd_lo) 1805 rrd_hi = rrd_lo + 3; 1806 break; 1807 } 1808 CSR_WRITE_4(sc, AGE_RXQ_FIFO_PAUSE_THRESH, 1809 ((rxf_lo << RXQ_FIFO_PAUSE_THRESH_LO_SHIFT) & 1810 RXQ_FIFO_PAUSE_THRESH_LO_MASK) | 1811 ((rxf_hi << RXQ_FIFO_PAUSE_THRESH_HI_SHIFT) & 1812 RXQ_FIFO_PAUSE_THRESH_HI_MASK)); 1813 CSR_WRITE_4(sc, AGE_RXQ_RRD_PAUSE_THRESH, 1814 ((rrd_lo << RXQ_RRD_PAUSE_THRESH_LO_SHIFT) & 1815 RXQ_RRD_PAUSE_THRESH_LO_MASK) | 1816 ((rrd_hi << RXQ_RRD_PAUSE_THRESH_HI_SHIFT) & 1817 RXQ_RRD_PAUSE_THRESH_HI_MASK)); 1818 1819 /* Configure RxQ. */ 1820 CSR_WRITE_4(sc, AGE_RXQ_CFG, 1821 ((RXQ_CFG_RD_BURST_DEFAULT << RXQ_CFG_RD_BURST_SHIFT) & 1822 RXQ_CFG_RD_BURST_MASK) | 1823 ((RXQ_CFG_RRD_BURST_THRESH_DEFAULT << 1824 RXQ_CFG_RRD_BURST_THRESH_SHIFT) & RXQ_CFG_RRD_BURST_THRESH_MASK) | 1825 ((RXQ_CFG_RD_PREF_MIN_IPG_DEFAULT << 1826 RXQ_CFG_RD_PREF_MIN_IPG_SHIFT) & RXQ_CFG_RD_PREF_MIN_IPG_MASK) | 1827 RXQ_CFG_CUT_THROUGH_ENB | RXQ_CFG_ENB); 1828 1829 /* Configure TxQ. */ 1830 CSR_WRITE_4(sc, AGE_TXQ_CFG, 1831 ((TXQ_CFG_TPD_BURST_DEFAULT << TXQ_CFG_TPD_BURST_SHIFT) & 1832 TXQ_CFG_TPD_BURST_MASK) | 1833 ((TXQ_CFG_TX_FIFO_BURST_DEFAULT << TXQ_CFG_TX_FIFO_BURST_SHIFT) & 1834 TXQ_CFG_TX_FIFO_BURST_MASK) | 1835 ((TXQ_CFG_TPD_FETCH_DEFAULT << 1836 TXQ_CFG_TPD_FETCH_THRESH_SHIFT) & TXQ_CFG_TPD_FETCH_THRESH_MASK) | 1837 TXQ_CFG_ENB); 1838 1839 /* Configure DMA parameters. */ 1840 CSR_WRITE_4(sc, AGE_DMA_CFG, 1841 DMA_CFG_ENH_ORDER | DMA_CFG_RCB_64 | 1842 sc->age_dma_rd_burst | DMA_CFG_RD_ENB | 1843 sc->age_dma_wr_burst | DMA_CFG_WR_ENB); 1844 1845 /* Configure CMB DMA write threshold. */ 1846 CSR_WRITE_4(sc, AGE_CMB_WR_THRESH, 1847 ((CMB_WR_THRESH_RRD_DEFAULT << CMB_WR_THRESH_RRD_SHIFT) & 1848 CMB_WR_THRESH_RRD_MASK) | 1849 ((CMB_WR_THRESH_TPD_DEFAULT << CMB_WR_THRESH_TPD_SHIFT) & 1850 CMB_WR_THRESH_TPD_MASK)); 1851 1852 /* Set CMB/SMB timer and enable them. */ 1853 CSR_WRITE_4(sc, AGE_CMB_WR_TIMER, 1854 ((AGE_USECS(2) << CMB_WR_TIMER_TX_SHIFT) & CMB_WR_TIMER_TX_MASK) | 1855 ((AGE_USECS(2) << CMB_WR_TIMER_RX_SHIFT) & CMB_WR_TIMER_RX_MASK)); 1856 1857 /* Request SMB updates for every seconds. */ 1858 CSR_WRITE_4(sc, AGE_SMB_TIMER, AGE_USECS(1000 * 1000)); 1859 CSR_WRITE_4(sc, AGE_CSMB_CTRL, CSMB_CTRL_SMB_ENB | CSMB_CTRL_CMB_ENB); 1860 1861 /* 1862 * Disable all WOL bits as WOL can interfere normal Rx 1863 * operation. 1864 */ 1865 CSR_WRITE_4(sc, AGE_WOL_CFG, 0); 1866 1867 /* 1868 * Configure Tx/Rx MACs. 1869 * - Auto-padding for short frames. 1870 * - Enable CRC generation. 1871 * Start with full-duplex/1000Mbps media. Actual reconfiguration 1872 * of MAC is followed after link establishment. 1873 */ 1874 CSR_WRITE_4(sc, AGE_MAC_CFG, 1875 MAC_CFG_TX_CRC_ENB | MAC_CFG_TX_AUTO_PAD | 1876 MAC_CFG_FULL_DUPLEX | MAC_CFG_SPEED_1000 | 1877 ((MAC_CFG_PREAMBLE_DEFAULT << MAC_CFG_PREAMBLE_SHIFT) & 1878 MAC_CFG_PREAMBLE_MASK)); 1879 1880 /* Set up the receive filter. */ 1881 age_rxfilter(sc); 1882 age_rxvlan(sc); 1883 1884 reg = CSR_READ_4(sc, AGE_MAC_CFG); 1885 reg |= MAC_CFG_RXCSUM_ENB; 1886 1887 /* Ack all pending interrupts and clear it. */ 1888 CSR_WRITE_4(sc, AGE_INTR_STATUS, 0); 1889 CSR_WRITE_4(sc, AGE_INTR_MASK, AGE_INTRS); 1890 1891 /* Finally enable Tx/Rx MAC. */ 1892 CSR_WRITE_4(sc, AGE_MAC_CFG, reg | MAC_CFG_TX_ENB | MAC_CFG_RX_ENB); 1893 1894 sc->age_flags &= ~AGE_FLAG_LINK; 1895 1896 /* Switch to the current media. */ 1897 mii = &sc->sc_miibus; 1898 mii_mediachg(mii); 1899 1900 callout_schedule(&sc->sc_tick_ch, hz); 1901 1902 ifp->if_flags |= IFF_RUNNING; 1903 ifp->if_flags &= ~IFF_OACTIVE; 1904 1905 return 0; 1906 } 1907 1908 static void 1909 age_stop(struct ifnet *ifp, int disable) 1910 { 1911 struct age_softc *sc = ifp->if_softc; 1912 struct age_txdesc *txd; 1913 struct age_rxdesc *rxd; 1914 uint32_t reg; 1915 int i; 1916 1917 callout_stop(&sc->sc_tick_ch); 1918 1919 /* 1920 * Mark the interface down and cancel the watchdog timer. 1921 */ 1922 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1923 ifp->if_timer = 0; 1924 1925 sc->age_flags &= ~AGE_FLAG_LINK; 1926 1927 mii_down(&sc->sc_miibus); 1928 1929 /* 1930 * Disable interrupts. 1931 */ 1932 CSR_WRITE_4(sc, AGE_INTR_MASK, 0); 1933 CSR_WRITE_4(sc, AGE_INTR_STATUS, 0xFFFFFFFF); 1934 1935 /* Stop CMB/SMB updates. */ 1936 CSR_WRITE_4(sc, AGE_CSMB_CTRL, 0); 1937 1938 /* Stop Rx/Tx MAC. */ 1939 age_stop_rxmac(sc); 1940 age_stop_txmac(sc); 1941 1942 /* Stop DMA. */ 1943 CSR_WRITE_4(sc, AGE_DMA_CFG, 1944 CSR_READ_4(sc, AGE_DMA_CFG) & ~(DMA_CFG_RD_ENB | DMA_CFG_WR_ENB)); 1945 1946 /* Stop TxQ/RxQ. */ 1947 CSR_WRITE_4(sc, AGE_TXQ_CFG, 1948 CSR_READ_4(sc, AGE_TXQ_CFG) & ~TXQ_CFG_ENB); 1949 CSR_WRITE_4(sc, AGE_RXQ_CFG, 1950 CSR_READ_4(sc, AGE_RXQ_CFG) & ~RXQ_CFG_ENB); 1951 for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 1952 if ((reg = CSR_READ_4(sc, AGE_IDLE_STATUS)) == 0) 1953 break; 1954 DELAY(10); 1955 } 1956 if (i == 0) 1957 printf("%s: stopping Rx/Tx MACs timed out(0x%08x)!\n", 1958 device_xname(sc->sc_dev), reg); 1959 1960 /* Reclaim Rx buffers that have been processed. */ 1961 if (sc->age_cdata.age_rxhead != NULL) 1962 m_freem(sc->age_cdata.age_rxhead); 1963 AGE_RXCHAIN_RESET(sc); 1964 1965 /* 1966 * Free RX and TX mbufs still in the queues. 1967 */ 1968 for (i = 0; i < AGE_RX_RING_CNT; i++) { 1969 rxd = &sc->age_cdata.age_rxdesc[i]; 1970 if (rxd->rx_m != NULL) { 1971 bus_dmamap_unload(sc->sc_dmat, rxd->rx_dmamap); 1972 m_freem(rxd->rx_m); 1973 rxd->rx_m = NULL; 1974 } 1975 } 1976 for (i = 0; i < AGE_TX_RING_CNT; i++) { 1977 txd = &sc->age_cdata.age_txdesc[i]; 1978 if (txd->tx_m != NULL) { 1979 bus_dmamap_unload(sc->sc_dmat, txd->tx_dmamap); 1980 m_freem(txd->tx_m); 1981 txd->tx_m = NULL; 1982 } 1983 } 1984 } 1985 1986 static void 1987 age_stats_update(struct age_softc *sc) 1988 { 1989 struct ifnet *ifp = &sc->sc_ec.ec_if; 1990 struct age_stats *stat; 1991 struct smb *smb; 1992 1993 stat = &sc->age_stat; 1994 1995 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_smb_block_map, 0, 1996 sc->age_cdata.age_smb_block_map->dm_mapsize, 1997 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 1998 1999 smb = sc->age_rdata.age_smb_block; 2000 if (smb->updated == 0) 2001 return; 2002 2003 /* Rx stats. */ 2004 stat->rx_frames += smb->rx_frames; 2005 stat->rx_bcast_frames += smb->rx_bcast_frames; 2006 stat->rx_mcast_frames += smb->rx_mcast_frames; 2007 stat->rx_pause_frames += smb->rx_pause_frames; 2008 stat->rx_control_frames += smb->rx_control_frames; 2009 stat->rx_crcerrs += smb->rx_crcerrs; 2010 stat->rx_lenerrs += smb->rx_lenerrs; 2011 stat->rx_bytes += smb->rx_bytes; 2012 stat->rx_runts += smb->rx_runts; 2013 stat->rx_fragments += smb->rx_fragments; 2014 stat->rx_pkts_64 += smb->rx_pkts_64; 2015 stat->rx_pkts_65_127 += smb->rx_pkts_65_127; 2016 stat->rx_pkts_128_255 += smb->rx_pkts_128_255; 2017 stat->rx_pkts_256_511 += smb->rx_pkts_256_511; 2018 stat->rx_pkts_512_1023 += smb->rx_pkts_512_1023; 2019 stat->rx_pkts_1024_1518 += smb->rx_pkts_1024_1518; 2020 stat->rx_pkts_1519_max += smb->rx_pkts_1519_max; 2021 stat->rx_pkts_truncated += smb->rx_pkts_truncated; 2022 stat->rx_fifo_oflows += smb->rx_fifo_oflows; 2023 stat->rx_desc_oflows += smb->rx_desc_oflows; 2024 stat->rx_alignerrs += smb->rx_alignerrs; 2025 stat->rx_bcast_bytes += smb->rx_bcast_bytes; 2026 stat->rx_mcast_bytes += smb->rx_mcast_bytes; 2027 stat->rx_pkts_filtered += smb->rx_pkts_filtered; 2028 2029 /* Tx stats. */ 2030 stat->tx_frames += smb->tx_frames; 2031 stat->tx_bcast_frames += smb->tx_bcast_frames; 2032 stat->tx_mcast_frames += smb->tx_mcast_frames; 2033 stat->tx_pause_frames += smb->tx_pause_frames; 2034 stat->tx_excess_defer += smb->tx_excess_defer; 2035 stat->tx_control_frames += smb->tx_control_frames; 2036 stat->tx_deferred += smb->tx_deferred; 2037 stat->tx_bytes += smb->tx_bytes; 2038 stat->tx_pkts_64 += smb->tx_pkts_64; 2039 stat->tx_pkts_65_127 += smb->tx_pkts_65_127; 2040 stat->tx_pkts_128_255 += smb->tx_pkts_128_255; 2041 stat->tx_pkts_256_511 += smb->tx_pkts_256_511; 2042 stat->tx_pkts_512_1023 += smb->tx_pkts_512_1023; 2043 stat->tx_pkts_1024_1518 += smb->tx_pkts_1024_1518; 2044 stat->tx_pkts_1519_max += smb->tx_pkts_1519_max; 2045 stat->tx_single_colls += smb->tx_single_colls; 2046 stat->tx_multi_colls += smb->tx_multi_colls; 2047 stat->tx_late_colls += smb->tx_late_colls; 2048 stat->tx_excess_colls += smb->tx_excess_colls; 2049 stat->tx_underrun += smb->tx_underrun; 2050 stat->tx_desc_underrun += smb->tx_desc_underrun; 2051 stat->tx_lenerrs += smb->tx_lenerrs; 2052 stat->tx_pkts_truncated += smb->tx_pkts_truncated; 2053 stat->tx_bcast_bytes += smb->tx_bcast_bytes; 2054 stat->tx_mcast_bytes += smb->tx_mcast_bytes; 2055 2056 /* Update counters in ifnet. */ 2057 net_stat_ref_t nsr = IF_STAT_GETREF(ifp); 2058 2059 if_statadd_ref(nsr, if_opackets, smb->tx_frames); 2060 2061 if_statadd_ref(nsr, if_collisions, 2062 smb->tx_single_colls + 2063 smb->tx_multi_colls + smb->tx_late_colls + 2064 smb->tx_excess_colls * HDPX_CFG_RETRY_DEFAULT); 2065 2066 if_statadd_ref(nsr, if_oerrors, 2067 smb->tx_excess_colls + 2068 smb->tx_late_colls + smb->tx_underrun + 2069 smb->tx_pkts_truncated); 2070 2071 if_statadd_ref(nsr, if_ierrors, 2072 smb->rx_crcerrs + smb->rx_lenerrs + 2073 smb->rx_runts + smb->rx_pkts_truncated + 2074 smb->rx_fifo_oflows + smb->rx_desc_oflows + 2075 smb->rx_alignerrs); 2076 2077 IF_STAT_PUTREF(ifp); 2078 2079 /* Update done, clear. */ 2080 smb->updated = 0; 2081 2082 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_smb_block_map, 0, 2083 sc->age_cdata.age_smb_block_map->dm_mapsize, 2084 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2085 } 2086 2087 static void 2088 age_stop_txmac(struct age_softc *sc) 2089 { 2090 uint32_t reg; 2091 int i; 2092 2093 reg = CSR_READ_4(sc, AGE_MAC_CFG); 2094 if ((reg & MAC_CFG_TX_ENB) != 0) { 2095 reg &= ~MAC_CFG_TX_ENB; 2096 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2097 } 2098 /* Stop Tx DMA engine. */ 2099 reg = CSR_READ_4(sc, AGE_DMA_CFG); 2100 if ((reg & DMA_CFG_RD_ENB) != 0) { 2101 reg &= ~DMA_CFG_RD_ENB; 2102 CSR_WRITE_4(sc, AGE_DMA_CFG, reg); 2103 } 2104 for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 2105 if ((CSR_READ_4(sc, AGE_IDLE_STATUS) & 2106 (IDLE_STATUS_TXMAC | IDLE_STATUS_DMARD)) == 0) 2107 break; 2108 DELAY(10); 2109 } 2110 if (i == 0) 2111 printf("%s: stopping TxMAC timeout!\n", device_xname(sc->sc_dev)); 2112 } 2113 2114 static void 2115 age_stop_rxmac(struct age_softc *sc) 2116 { 2117 uint32_t reg; 2118 int i; 2119 2120 reg = CSR_READ_4(sc, AGE_MAC_CFG); 2121 if ((reg & MAC_CFG_RX_ENB) != 0) { 2122 reg &= ~MAC_CFG_RX_ENB; 2123 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2124 } 2125 /* Stop Rx DMA engine. */ 2126 reg = CSR_READ_4(sc, AGE_DMA_CFG); 2127 if ((reg & DMA_CFG_WR_ENB) != 0) { 2128 reg &= ~DMA_CFG_WR_ENB; 2129 CSR_WRITE_4(sc, AGE_DMA_CFG, reg); 2130 } 2131 for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 2132 if ((CSR_READ_4(sc, AGE_IDLE_STATUS) & 2133 (IDLE_STATUS_RXMAC | IDLE_STATUS_DMAWR)) == 0) 2134 break; 2135 DELAY(10); 2136 } 2137 if (i == 0) 2138 printf("%s: stopping RxMAC timeout!\n", device_xname(sc->sc_dev)); 2139 } 2140 2141 static void 2142 age_init_tx_ring(struct age_softc *sc) 2143 { 2144 struct age_ring_data *rd; 2145 struct age_txdesc *txd; 2146 int i; 2147 2148 sc->age_cdata.age_tx_prod = 0; 2149 sc->age_cdata.age_tx_cons = 0; 2150 sc->age_cdata.age_tx_cnt = 0; 2151 2152 rd = &sc->age_rdata; 2153 memset(rd->age_tx_ring, 0, AGE_TX_RING_SZ); 2154 for (i = 0; i < AGE_TX_RING_CNT; i++) { 2155 txd = &sc->age_cdata.age_txdesc[i]; 2156 txd->tx_desc = &rd->age_tx_ring[i]; 2157 txd->tx_m = NULL; 2158 } 2159 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_tx_ring_map, 0, 2160 sc->age_cdata.age_tx_ring_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2161 } 2162 2163 static int 2164 age_init_rx_ring(struct age_softc *sc) 2165 { 2166 struct age_ring_data *rd; 2167 struct age_rxdesc *rxd; 2168 int i; 2169 2170 sc->age_cdata.age_rx_cons = AGE_RX_RING_CNT - 1; 2171 rd = &sc->age_rdata; 2172 memset(rd->age_rx_ring, 0, AGE_RX_RING_SZ); 2173 for (i = 0; i < AGE_RX_RING_CNT; i++) { 2174 rxd = &sc->age_cdata.age_rxdesc[i]; 2175 rxd->rx_m = NULL; 2176 rxd->rx_desc = &rd->age_rx_ring[i]; 2177 if (age_newbuf(sc, rxd, 1) != 0) 2178 return ENOBUFS; 2179 } 2180 2181 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_rx_ring_map, 0, 2182 sc->age_cdata.age_rx_ring_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2183 2184 return 0; 2185 } 2186 2187 static void 2188 age_init_rr_ring(struct age_softc *sc) 2189 { 2190 struct age_ring_data *rd; 2191 2192 sc->age_cdata.age_rr_cons = 0; 2193 AGE_RXCHAIN_RESET(sc); 2194 2195 rd = &sc->age_rdata; 2196 memset(rd->age_rr_ring, 0, AGE_RR_RING_SZ); 2197 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_rr_ring_map, 0, 2198 sc->age_cdata.age_rr_ring_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2199 } 2200 2201 static void 2202 age_init_cmb_block(struct age_softc *sc) 2203 { 2204 struct age_ring_data *rd; 2205 2206 rd = &sc->age_rdata; 2207 memset(rd->age_cmb_block, 0, AGE_CMB_BLOCK_SZ); 2208 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_cmb_block_map, 0, 2209 sc->age_cdata.age_cmb_block_map->dm_mapsize, 2210 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2211 } 2212 2213 static void 2214 age_init_smb_block(struct age_softc *sc) 2215 { 2216 struct age_ring_data *rd; 2217 2218 rd = &sc->age_rdata; 2219 memset(rd->age_smb_block, 0, AGE_SMB_BLOCK_SZ); 2220 bus_dmamap_sync(sc->sc_dmat, sc->age_cdata.age_smb_block_map, 0, 2221 sc->age_cdata.age_smb_block_map->dm_mapsize, BUS_DMASYNC_PREWRITE); 2222 } 2223 2224 static int 2225 age_newbuf(struct age_softc *sc, struct age_rxdesc *rxd, int init) 2226 { 2227 struct rx_desc *desc; 2228 struct mbuf *m; 2229 bus_dmamap_t map; 2230 int error; 2231 2232 MGETHDR(m, M_DONTWAIT, MT_DATA); 2233 if (m == NULL) 2234 return ENOBUFS; 2235 MCLGET(m, M_DONTWAIT); 2236 if (!(m->m_flags & M_EXT)) { 2237 m_freem(m); 2238 return ENOBUFS; 2239 } 2240 2241 m->m_len = m->m_pkthdr.len = MCLBYTES; 2242 m_adj(m, ETHER_ALIGN); 2243 2244 error = bus_dmamap_load_mbuf(sc->sc_dmat, 2245 sc->age_cdata.age_rx_sparemap, m, BUS_DMA_NOWAIT); 2246 2247 if (error != 0) { 2248 m_freem(m); 2249 2250 if (init) 2251 printf("%s: can't load RX mbuf\n", device_xname(sc->sc_dev)); 2252 return error; 2253 } 2254 2255 if (rxd->rx_m != NULL) { 2256 bus_dmamap_sync(sc->sc_dmat, rxd->rx_dmamap, 0, 2257 rxd->rx_dmamap->dm_mapsize, BUS_DMASYNC_POSTREAD); 2258 bus_dmamap_unload(sc->sc_dmat, rxd->rx_dmamap); 2259 } 2260 map = rxd->rx_dmamap; 2261 rxd->rx_dmamap = sc->age_cdata.age_rx_sparemap; 2262 sc->age_cdata.age_rx_sparemap = map; 2263 rxd->rx_m = m; 2264 2265 desc = rxd->rx_desc; 2266 desc->addr = htole64(rxd->rx_dmamap->dm_segs[0].ds_addr); 2267 desc->len = 2268 htole32((rxd->rx_dmamap->dm_segs[0].ds_len & AGE_RD_LEN_MASK) << 2269 AGE_RD_LEN_SHIFT); 2270 2271 return 0; 2272 } 2273 2274 static void 2275 age_rxvlan(struct age_softc *sc) 2276 { 2277 uint32_t reg; 2278 2279 reg = CSR_READ_4(sc, AGE_MAC_CFG); 2280 reg &= ~MAC_CFG_VLAN_TAG_STRIP; 2281 if (sc->sc_ec.ec_capenable & ETHERCAP_VLAN_HWTAGGING) 2282 reg |= MAC_CFG_VLAN_TAG_STRIP; 2283 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2284 } 2285 2286 static void 2287 age_rxfilter(struct age_softc *sc) 2288 { 2289 struct ethercom *ec = &sc->sc_ec; 2290 struct ifnet *ifp = &sc->sc_ec.ec_if; 2291 struct ether_multi *enm; 2292 struct ether_multistep step; 2293 uint32_t crc; 2294 uint32_t mchash[2]; 2295 uint32_t rxcfg; 2296 2297 rxcfg = CSR_READ_4(sc, AGE_MAC_CFG); 2298 rxcfg &= ~(MAC_CFG_ALLMULTI | MAC_CFG_BCAST | MAC_CFG_PROMISC); 2299 ifp->if_flags &= ~IFF_ALLMULTI; 2300 2301 /* 2302 * Always accept broadcast frames. 2303 */ 2304 rxcfg |= MAC_CFG_BCAST; 2305 2306 /* Program new filter. */ 2307 if ((ifp->if_flags & IFF_PROMISC) != 0) 2308 goto update; 2309 2310 memset(mchash, 0, sizeof(mchash)); 2311 2312 ETHER_LOCK(ec); 2313 ETHER_FIRST_MULTI(step, ec, enm); 2314 while (enm != NULL) { 2315 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN)) { 2316 /* XXX Use ETHER_F_ALLMULTI in future. */ 2317 ifp->if_flags |= IFF_ALLMULTI; 2318 ETHER_UNLOCK(ec); 2319 goto update; 2320 } 2321 crc = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN); 2322 mchash[crc >> 31] |= 1U << ((crc >> 26) & 0x1f); 2323 ETHER_NEXT_MULTI(step, enm); 2324 } 2325 ETHER_UNLOCK(ec); 2326 2327 update: 2328 if ((ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0) { 2329 if (ifp->if_flags & IFF_PROMISC) { 2330 rxcfg |= MAC_CFG_PROMISC; 2331 /* XXX Use ETHER_F_ALLMULTI in future. */ 2332 ifp->if_flags |= IFF_ALLMULTI; 2333 } else 2334 rxcfg |= MAC_CFG_ALLMULTI; 2335 mchash[0] = mchash[1] = 0xFFFFFFFF; 2336 } 2337 CSR_WRITE_4(sc, AGE_MAR0, mchash[0]); 2338 CSR_WRITE_4(sc, AGE_MAR1, mchash[1]); 2339 CSR_WRITE_4(sc, AGE_MAC_CFG, rxcfg); 2340 } 2341
Indexes created Mon Sep 29 21:09:56 GMT 2025