1 /*- 2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD 3 * 4 * Copyright (c) 2008, Pyun YongHyeon <yongari@FreeBSD.org> 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice unmodified, this list of conditions, and the following 12 * 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 * 17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 27 * SUCH DAMAGE. 28 */ 29 30 /* Driver for Attansic Technology Corp. L1 Gigabit Ethernet. */ 31 32 #include <sys/cdefs.h> 33 __FBSDID("$FreeBSD$"); 34 35 #include <sys/param.h> 36 #include <sys/systm.h> 37 #include <sys/bus.h> 38 #include <sys/endian.h> 39 #include <sys/kernel.h> 40 #include <sys/malloc.h> 41 #include <sys/mbuf.h> 42 #include <sys/rman.h> 43 #include <sys/module.h> 44 #include <sys/queue.h> 45 #include <sys/socket.h> 46 #include <sys/sockio.h> 47 #include <sys/sysctl.h> 48 #include <sys/taskqueue.h> 49 50 #include <net/bpf.h> 51 #include <net/if.h> 52 #include <net/if_var.h> 53 #include <net/if_arp.h> 54 #include <net/ethernet.h> 55 #include <net/if_dl.h> 56 #include <net/if_media.h> 57 #include <net/if_types.h> 58 #include <net/if_vlan_var.h> 59 60 #include <netinet/in.h> 61 #include <netinet/in_systm.h> 62 #include <netinet/ip.h> 63 #include <netinet/tcp.h> 64 65 #include <dev/mii/mii.h> 66 #include <dev/mii/miivar.h> 67 68 #include <dev/pci/pcireg.h> 69 #include <dev/pci/pcivar.h> 70 71 #include <machine/bus.h> 72 #include <machine/in_cksum.h> 73 74 #include <dev/age/if_agereg.h> 75 #include <dev/age/if_agevar.h> 76 77 /* "device miibus" required. See GENERIC if you get errors here. */ 78 #include "miibus_if.h" 79 80 #define AGE_CSUM_FEATURES (CSUM_TCP | CSUM_UDP) 81 82 MODULE_DEPEND(age, pci, 1, 1, 1); 83 MODULE_DEPEND(age, ether, 1, 1, 1); 84 MODULE_DEPEND(age, miibus, 1, 1, 1); 85 86 /* Tunables. */ 87 static int msi_disable = 0; 88 static int msix_disable = 0; 89 TUNABLE_INT("hw.age.msi_disable", &msi_disable); 90 TUNABLE_INT("hw.age.msix_disable", &msix_disable); 91 92 /* 93 * Devices supported by this driver. 94 */ 95 static struct age_dev { 96 uint16_t age_vendorid; 97 uint16_t age_deviceid; 98 const char *age_name; 99 } age_devs[] = { 100 { VENDORID_ATTANSIC, DEVICEID_ATTANSIC_L1, 101 "Attansic Technology Corp, L1 Gigabit Ethernet" }, 102 }; 103 104 static int age_miibus_readreg(device_t, int, int); 105 static int age_miibus_writereg(device_t, int, int, int); 106 static void age_miibus_statchg(device_t); 107 static void age_mediastatus(struct ifnet *, struct ifmediareq *); 108 static int age_mediachange(struct ifnet *); 109 static int age_probe(device_t); 110 static void age_get_macaddr(struct age_softc *); 111 static void age_phy_reset(struct age_softc *); 112 static int age_attach(device_t); 113 static int age_detach(device_t); 114 static void age_sysctl_node(struct age_softc *); 115 static void age_dmamap_cb(void *, bus_dma_segment_t *, int, int); 116 static int age_check_boundary(struct age_softc *); 117 static int age_dma_alloc(struct age_softc *); 118 static void age_dma_free(struct age_softc *); 119 static int age_shutdown(device_t); 120 static void age_setwol(struct age_softc *); 121 static int age_suspend(device_t); 122 static int age_resume(device_t); 123 static int age_encap(struct age_softc *, struct mbuf **); 124 static void age_start(struct ifnet *); 125 static void age_start_locked(struct ifnet *); 126 static void age_watchdog(struct age_softc *); 127 static int age_ioctl(struct ifnet *, u_long, caddr_t); 128 static void age_mac_config(struct age_softc *); 129 static void age_link_task(void *, int); 130 static void age_stats_update(struct age_softc *); 131 static int age_intr(void *); 132 static void age_int_task(void *, int); 133 static void age_txintr(struct age_softc *, int); 134 static void age_rxeof(struct age_softc *sc, struct rx_rdesc *); 135 static int age_rxintr(struct age_softc *, int, int); 136 static void age_tick(void *); 137 static void age_reset(struct age_softc *); 138 static void age_init(void *); 139 static void age_init_locked(struct age_softc *); 140 static void age_stop(struct age_softc *); 141 static void age_stop_txmac(struct age_softc *); 142 static void age_stop_rxmac(struct age_softc *); 143 static void age_init_tx_ring(struct age_softc *); 144 static int age_init_rx_ring(struct age_softc *); 145 static void age_init_rr_ring(struct age_softc *); 146 static void age_init_cmb_block(struct age_softc *); 147 static void age_init_smb_block(struct age_softc *); 148 #ifndef __NO_STRICT_ALIGNMENT 149 static struct mbuf *age_fixup_rx(struct ifnet *, struct mbuf *); 150 #endif 151 static int age_newbuf(struct age_softc *, struct age_rxdesc *); 152 static void age_rxvlan(struct age_softc *); 153 static void age_rxfilter(struct age_softc *); 154 static int sysctl_age_stats(SYSCTL_HANDLER_ARGS); 155 static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int, int); 156 static int sysctl_hw_age_proc_limit(SYSCTL_HANDLER_ARGS); 157 static int sysctl_hw_age_int_mod(SYSCTL_HANDLER_ARGS); 158 159 static device_method_t age_methods[] = { 160 /* Device interface. */ 161 DEVMETHOD(device_probe, age_probe), 162 DEVMETHOD(device_attach, age_attach), 163 DEVMETHOD(device_detach, age_detach), 164 DEVMETHOD(device_shutdown, age_shutdown), 165 DEVMETHOD(device_suspend, age_suspend), 166 DEVMETHOD(device_resume, age_resume), 167 168 /* MII interface. */ 169 DEVMETHOD(miibus_readreg, age_miibus_readreg), 170 DEVMETHOD(miibus_writereg, age_miibus_writereg), 171 DEVMETHOD(miibus_statchg, age_miibus_statchg), 172 { NULL, NULL } 173 }; 174 175 static driver_t age_driver = { 176 "age", 177 age_methods, 178 sizeof(struct age_softc) 179 }; 180 181 static devclass_t age_devclass; 182 183 DRIVER_MODULE(age, pci, age_driver, age_devclass, 0, 0); 184 MODULE_PNP_INFO("U16:vendor;U16:device;D:#", pci, age, age_devs, 185 nitems(age_devs)); 186 DRIVER_MODULE(miibus, age, miibus_driver, miibus_devclass, 0, 0); 187 188 static struct resource_spec age_res_spec_mem[] = { 189 { SYS_RES_MEMORY, PCIR_BAR(0), RF_ACTIVE }, 190 { -1, 0, 0 } 191 }; 192 193 static struct resource_spec age_irq_spec_legacy[] = { 194 { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE }, 195 { -1, 0, 0 } 196 }; 197 198 static struct resource_spec age_irq_spec_msi[] = { 199 { SYS_RES_IRQ, 1, RF_ACTIVE }, 200 { -1, 0, 0 } 201 }; 202 203 static struct resource_spec age_irq_spec_msix[] = { 204 { SYS_RES_IRQ, 1, RF_ACTIVE }, 205 { -1, 0, 0 } 206 }; 207 208 /* 209 * Read a PHY register on the MII of the L1. 210 */ 211 static int 212 age_miibus_readreg(device_t dev, int phy, int reg) 213 { 214 struct age_softc *sc; 215 uint32_t v; 216 int i; 217 218 sc = device_get_softc(dev); 219 220 CSR_WRITE_4(sc, AGE_MDIO, MDIO_OP_EXECUTE | MDIO_OP_READ | 221 MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | MDIO_REG_ADDR(reg)); 222 for (i = AGE_PHY_TIMEOUT; i > 0; i--) { 223 DELAY(1); 224 v = CSR_READ_4(sc, AGE_MDIO); 225 if ((v & (MDIO_OP_EXECUTE | MDIO_OP_BUSY)) == 0) 226 break; 227 } 228 229 if (i == 0) { 230 device_printf(sc->age_dev, "phy read timeout : %d\n", reg); 231 return (0); 232 } 233 234 return ((v & MDIO_DATA_MASK) >> MDIO_DATA_SHIFT); 235 } 236 237 /* 238 * Write a PHY register on the MII of the L1. 239 */ 240 static int 241 age_miibus_writereg(device_t dev, int phy, int reg, int val) 242 { 243 struct age_softc *sc; 244 uint32_t v; 245 int i; 246 247 sc = device_get_softc(dev); 248 249 CSR_WRITE_4(sc, AGE_MDIO, MDIO_OP_EXECUTE | MDIO_OP_WRITE | 250 (val & MDIO_DATA_MASK) << MDIO_DATA_SHIFT | 251 MDIO_SUP_PREAMBLE | MDIO_CLK_25_4 | MDIO_REG_ADDR(reg)); 252 for (i = AGE_PHY_TIMEOUT; i > 0; i--) { 253 DELAY(1); 254 v = CSR_READ_4(sc, AGE_MDIO); 255 if ((v & (MDIO_OP_EXECUTE | MDIO_OP_BUSY)) == 0) 256 break; 257 } 258 259 if (i == 0) 260 device_printf(sc->age_dev, "phy write timeout : %d\n", reg); 261 262 return (0); 263 } 264 265 /* 266 * Callback from MII layer when media changes. 267 */ 268 static void 269 age_miibus_statchg(device_t dev) 270 { 271 struct age_softc *sc; 272 273 sc = device_get_softc(dev); 274 taskqueue_enqueue(taskqueue_swi, &sc->age_link_task); 275 } 276 277 /* 278 * Get the current interface media status. 279 */ 280 static void 281 age_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 282 { 283 struct age_softc *sc; 284 struct mii_data *mii; 285 286 sc = ifp->if_softc; 287 AGE_LOCK(sc); 288 mii = device_get_softc(sc->age_miibus); 289 290 mii_pollstat(mii); 291 ifmr->ifm_status = mii->mii_media_status; 292 ifmr->ifm_active = mii->mii_media_active; 293 AGE_UNLOCK(sc); 294 } 295 296 /* 297 * Set hardware to newly-selected media. 298 */ 299 static int 300 age_mediachange(struct ifnet *ifp) 301 { 302 struct age_softc *sc; 303 struct mii_data *mii; 304 struct mii_softc *miisc; 305 int error; 306 307 sc = ifp->if_softc; 308 AGE_LOCK(sc); 309 mii = device_get_softc(sc->age_miibus); 310 LIST_FOREACH(miisc, &mii->mii_phys, mii_list) 311 PHY_RESET(miisc); 312 error = mii_mediachg(mii); 313 AGE_UNLOCK(sc); 314 315 return (error); 316 } 317 318 static int 319 age_probe(device_t dev) 320 { 321 struct age_dev *sp; 322 int i; 323 uint16_t vendor, devid; 324 325 vendor = pci_get_vendor(dev); 326 devid = pci_get_device(dev); 327 sp = age_devs; 328 for (i = 0; i < nitems(age_devs); i++, sp++) { 329 if (vendor == sp->age_vendorid && 330 devid == sp->age_deviceid) { 331 device_set_desc(dev, sp->age_name); 332 return (BUS_PROBE_DEFAULT); 333 } 334 } 335 336 return (ENXIO); 337 } 338 339 static void 340 age_get_macaddr(struct age_softc *sc) 341 { 342 uint32_t ea[2], reg; 343 int i, vpdc; 344 345 reg = CSR_READ_4(sc, AGE_SPI_CTRL); 346 if ((reg & SPI_VPD_ENB) != 0) { 347 /* Get VPD stored in TWSI EEPROM. */ 348 reg &= ~SPI_VPD_ENB; 349 CSR_WRITE_4(sc, AGE_SPI_CTRL, reg); 350 } 351 352 if (pci_find_cap(sc->age_dev, PCIY_VPD, &vpdc) == 0) { 353 /* 354 * PCI VPD capability found, let TWSI reload EEPROM. 355 * This will set ethernet address of controller. 356 */ 357 CSR_WRITE_4(sc, AGE_TWSI_CTRL, CSR_READ_4(sc, AGE_TWSI_CTRL) | 358 TWSI_CTRL_SW_LD_START); 359 for (i = 100; i > 0; i--) { 360 DELAY(1000); 361 reg = CSR_READ_4(sc, AGE_TWSI_CTRL); 362 if ((reg & TWSI_CTRL_SW_LD_START) == 0) 363 break; 364 } 365 if (i == 0) 366 device_printf(sc->age_dev, 367 "reloading EEPROM timeout!\n"); 368 } else { 369 if (bootverbose) 370 device_printf(sc->age_dev, 371 "PCI VPD capability not found!\n"); 372 } 373 374 ea[0] = CSR_READ_4(sc, AGE_PAR0); 375 ea[1] = CSR_READ_4(sc, AGE_PAR1); 376 sc->age_eaddr[0] = (ea[1] >> 8) & 0xFF; 377 sc->age_eaddr[1] = (ea[1] >> 0) & 0xFF; 378 sc->age_eaddr[2] = (ea[0] >> 24) & 0xFF; 379 sc->age_eaddr[3] = (ea[0] >> 16) & 0xFF; 380 sc->age_eaddr[4] = (ea[0] >> 8) & 0xFF; 381 sc->age_eaddr[5] = (ea[0] >> 0) & 0xFF; 382 } 383 384 static void 385 age_phy_reset(struct age_softc *sc) 386 { 387 uint16_t reg, pn; 388 int i, linkup; 389 390 /* Reset PHY. */ 391 CSR_WRITE_4(sc, AGE_GPHY_CTRL, GPHY_CTRL_RST); 392 DELAY(2000); 393 CSR_WRITE_4(sc, AGE_GPHY_CTRL, GPHY_CTRL_CLR); 394 DELAY(2000); 395 396 #define ATPHY_DBG_ADDR 0x1D 397 #define ATPHY_DBG_DATA 0x1E 398 #define ATPHY_CDTC 0x16 399 #define PHY_CDTC_ENB 0x0001 400 #define PHY_CDTC_POFF 8 401 #define ATPHY_CDTS 0x1C 402 #define PHY_CDTS_STAT_OK 0x0000 403 #define PHY_CDTS_STAT_SHORT 0x0100 404 #define PHY_CDTS_STAT_OPEN 0x0200 405 #define PHY_CDTS_STAT_INVAL 0x0300 406 #define PHY_CDTS_STAT_MASK 0x0300 407 408 /* Check power saving mode. Magic from Linux. */ 409 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, MII_BMCR, BMCR_RESET); 410 for (linkup = 0, pn = 0; pn < 4; pn++) { 411 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, ATPHY_CDTC, 412 (pn << PHY_CDTC_POFF) | PHY_CDTC_ENB); 413 for (i = 200; i > 0; i--) { 414 DELAY(1000); 415 reg = age_miibus_readreg(sc->age_dev, sc->age_phyaddr, 416 ATPHY_CDTC); 417 if ((reg & PHY_CDTC_ENB) == 0) 418 break; 419 } 420 DELAY(1000); 421 reg = age_miibus_readreg(sc->age_dev, sc->age_phyaddr, 422 ATPHY_CDTS); 423 if ((reg & PHY_CDTS_STAT_MASK) != PHY_CDTS_STAT_OPEN) { 424 linkup++; 425 break; 426 } 427 } 428 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, MII_BMCR, 429 BMCR_RESET | BMCR_AUTOEN | BMCR_STARTNEG); 430 if (linkup == 0) { 431 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 432 ATPHY_DBG_ADDR, 0); 433 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 434 ATPHY_DBG_DATA, 0x124E); 435 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 436 ATPHY_DBG_ADDR, 1); 437 reg = age_miibus_readreg(sc->age_dev, sc->age_phyaddr, 438 ATPHY_DBG_DATA); 439 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 440 ATPHY_DBG_DATA, reg | 0x03); 441 /* XXX */ 442 DELAY(1500 * 1000); 443 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 444 ATPHY_DBG_ADDR, 0); 445 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 446 ATPHY_DBG_DATA, 0x024E); 447 } 448 449 #undef ATPHY_DBG_ADDR 450 #undef ATPHY_DBG_DATA 451 #undef ATPHY_CDTC 452 #undef PHY_CDTC_ENB 453 #undef PHY_CDTC_POFF 454 #undef ATPHY_CDTS 455 #undef PHY_CDTS_STAT_OK 456 #undef PHY_CDTS_STAT_SHORT 457 #undef PHY_CDTS_STAT_OPEN 458 #undef PHY_CDTS_STAT_INVAL 459 #undef PHY_CDTS_STAT_MASK 460 } 461 462 static int 463 age_attach(device_t dev) 464 { 465 struct age_softc *sc; 466 struct ifnet *ifp; 467 uint16_t burst; 468 int error, i, msic, msixc, pmc; 469 470 error = 0; 471 sc = device_get_softc(dev); 472 sc->age_dev = dev; 473 474 mtx_init(&sc->age_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 475 MTX_DEF); 476 callout_init_mtx(&sc->age_tick_ch, &sc->age_mtx, 0); 477 TASK_INIT(&sc->age_int_task, 0, age_int_task, sc); 478 TASK_INIT(&sc->age_link_task, 0, age_link_task, sc); 479 480 /* Map the device. */ 481 pci_enable_busmaster(dev); 482 sc->age_res_spec = age_res_spec_mem; 483 sc->age_irq_spec = age_irq_spec_legacy; 484 error = bus_alloc_resources(dev, sc->age_res_spec, sc->age_res); 485 if (error != 0) { 486 device_printf(dev, "cannot allocate memory resources.\n"); 487 goto fail; 488 } 489 490 /* Set PHY address. */ 491 sc->age_phyaddr = AGE_PHY_ADDR; 492 493 /* Reset PHY. */ 494 age_phy_reset(sc); 495 496 /* Reset the ethernet controller. */ 497 age_reset(sc); 498 499 /* Get PCI and chip id/revision. */ 500 sc->age_rev = pci_get_revid(dev); 501 sc->age_chip_rev = CSR_READ_4(sc, AGE_MASTER_CFG) >> 502 MASTER_CHIP_REV_SHIFT; 503 if (bootverbose) { 504 device_printf(dev, "PCI device revision : 0x%04x\n", 505 sc->age_rev); 506 device_printf(dev, "Chip id/revision : 0x%04x\n", 507 sc->age_chip_rev); 508 } 509 510 /* 511 * XXX 512 * Unintialized hardware returns an invalid chip id/revision 513 * as well as 0xFFFFFFFF for Tx/Rx fifo length. It seems that 514 * unplugged cable results in putting hardware into automatic 515 * power down mode which in turn returns invalld chip revision. 516 */ 517 if (sc->age_chip_rev == 0xFFFF) { 518 device_printf(dev,"invalid chip revision : 0x%04x -- " 519 "not initialized?\n", sc->age_chip_rev); 520 error = ENXIO; 521 goto fail; 522 } 523 524 device_printf(dev, "%d Tx FIFO, %d Rx FIFO\n", 525 CSR_READ_4(sc, AGE_SRAM_TX_FIFO_LEN), 526 CSR_READ_4(sc, AGE_SRAM_RX_FIFO_LEN)); 527 528 /* Allocate IRQ resources. */ 529 msixc = pci_msix_count(dev); 530 msic = pci_msi_count(dev); 531 if (bootverbose) { 532 device_printf(dev, "MSIX count : %d\n", msixc); 533 device_printf(dev, "MSI count : %d\n", msic); 534 } 535 536 /* Prefer MSIX over MSI. */ 537 if (msix_disable == 0 || msi_disable == 0) { 538 if (msix_disable == 0 && msixc == AGE_MSIX_MESSAGES && 539 pci_alloc_msix(dev, &msixc) == 0) { 540 if (msic == AGE_MSIX_MESSAGES) { 541 device_printf(dev, "Using %d MSIX messages.\n", 542 msixc); 543 sc->age_flags |= AGE_FLAG_MSIX; 544 sc->age_irq_spec = age_irq_spec_msix; 545 } else 546 pci_release_msi(dev); 547 } 548 if (msi_disable == 0 && (sc->age_flags & AGE_FLAG_MSIX) == 0 && 549 msic == AGE_MSI_MESSAGES && 550 pci_alloc_msi(dev, &msic) == 0) { 551 if (msic == AGE_MSI_MESSAGES) { 552 device_printf(dev, "Using %d MSI messages.\n", 553 msic); 554 sc->age_flags |= AGE_FLAG_MSI; 555 sc->age_irq_spec = age_irq_spec_msi; 556 } else 557 pci_release_msi(dev); 558 } 559 } 560 561 error = bus_alloc_resources(dev, sc->age_irq_spec, sc->age_irq); 562 if (error != 0) { 563 device_printf(dev, "cannot allocate IRQ resources.\n"); 564 goto fail; 565 } 566 567 /* Get DMA parameters from PCIe device control register. */ 568 if (pci_find_cap(dev, PCIY_EXPRESS, &i) == 0) { 569 sc->age_flags |= AGE_FLAG_PCIE; 570 burst = pci_read_config(dev, i + 0x08, 2); 571 /* Max read request size. */ 572 sc->age_dma_rd_burst = ((burst >> 12) & 0x07) << 573 DMA_CFG_RD_BURST_SHIFT; 574 /* Max payload size. */ 575 sc->age_dma_wr_burst = ((burst >> 5) & 0x07) << 576 DMA_CFG_WR_BURST_SHIFT; 577 if (bootverbose) { 578 device_printf(dev, "Read request size : %d bytes.\n", 579 128 << ((burst >> 12) & 0x07)); 580 device_printf(dev, "TLP payload size : %d bytes.\n", 581 128 << ((burst >> 5) & 0x07)); 582 } 583 } else { 584 sc->age_dma_rd_burst = DMA_CFG_RD_BURST_128; 585 sc->age_dma_wr_burst = DMA_CFG_WR_BURST_128; 586 } 587 588 /* Create device sysctl node. */ 589 age_sysctl_node(sc); 590 591 if ((error = age_dma_alloc(sc)) != 0) 592 goto fail; 593 594 /* Load station address. */ 595 age_get_macaddr(sc); 596 597 ifp = sc->age_ifp = if_alloc(IFT_ETHER); 598 if (ifp == NULL) { 599 device_printf(dev, "cannot allocate ifnet structure.\n"); 600 error = ENXIO; 601 goto fail; 602 } 603 604 ifp->if_softc = sc; 605 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 606 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 607 ifp->if_ioctl = age_ioctl; 608 ifp->if_start = age_start; 609 ifp->if_init = age_init; 610 ifp->if_snd.ifq_drv_maxlen = AGE_TX_RING_CNT - 1; 611 IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen); 612 IFQ_SET_READY(&ifp->if_snd); 613 ifp->if_capabilities = IFCAP_HWCSUM | IFCAP_TSO4; 614 ifp->if_hwassist = AGE_CSUM_FEATURES | CSUM_TSO; 615 if (pci_find_cap(dev, PCIY_PMG, &pmc) == 0) { 616 sc->age_flags |= AGE_FLAG_PMCAP; 617 ifp->if_capabilities |= IFCAP_WOL_MAGIC | IFCAP_WOL_MCAST; 618 } 619 ifp->if_capenable = ifp->if_capabilities; 620 621 /* Set up MII bus. */ 622 error = mii_attach(dev, &sc->age_miibus, ifp, age_mediachange, 623 age_mediastatus, BMSR_DEFCAPMASK, sc->age_phyaddr, MII_OFFSET_ANY, 624 0); 625 if (error != 0) { 626 device_printf(dev, "attaching PHYs failed\n"); 627 goto fail; 628 } 629 630 ether_ifattach(ifp, sc->age_eaddr); 631 632 /* VLAN capability setup. */ 633 ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_VLAN_HWTAGGING | 634 IFCAP_VLAN_HWCSUM | IFCAP_VLAN_HWTSO; 635 ifp->if_capenable = ifp->if_capabilities; 636 637 /* Tell the upper layer(s) we support long frames. */ 638 ifp->if_hdrlen = sizeof(struct ether_vlan_header); 639 640 /* Create local taskq. */ 641 sc->age_tq = taskqueue_create_fast("age_taskq", M_WAITOK, 642 taskqueue_thread_enqueue, &sc->age_tq); 643 if (sc->age_tq == NULL) { 644 device_printf(dev, "could not create taskqueue.\n"); 645 ether_ifdetach(ifp); 646 error = ENXIO; 647 goto fail; 648 } 649 taskqueue_start_threads(&sc->age_tq, 1, PI_NET, "%s taskq", 650 device_get_nameunit(sc->age_dev)); 651 652 if ((sc->age_flags & AGE_FLAG_MSIX) != 0) 653 msic = AGE_MSIX_MESSAGES; 654 else if ((sc->age_flags & AGE_FLAG_MSI) != 0) 655 msic = AGE_MSI_MESSAGES; 656 else 657 msic = 1; 658 for (i = 0; i < msic; i++) { 659 error = bus_setup_intr(dev, sc->age_irq[i], 660 INTR_TYPE_NET | INTR_MPSAFE, age_intr, NULL, sc, 661 &sc->age_intrhand[i]); 662 if (error != 0) 663 break; 664 } 665 if (error != 0) { 666 device_printf(dev, "could not set up interrupt handler.\n"); 667 taskqueue_free(sc->age_tq); 668 sc->age_tq = NULL; 669 ether_ifdetach(ifp); 670 goto fail; 671 } 672 673 fail: 674 if (error != 0) 675 age_detach(dev); 676 677 return (error); 678 } 679 680 static int 681 age_detach(device_t dev) 682 { 683 struct age_softc *sc; 684 struct ifnet *ifp; 685 int i, msic; 686 687 sc = device_get_softc(dev); 688 689 ifp = sc->age_ifp; 690 if (device_is_attached(dev)) { 691 AGE_LOCK(sc); 692 sc->age_flags |= AGE_FLAG_DETACH; 693 age_stop(sc); 694 AGE_UNLOCK(sc); 695 callout_drain(&sc->age_tick_ch); 696 taskqueue_drain(sc->age_tq, &sc->age_int_task); 697 taskqueue_drain(taskqueue_swi, &sc->age_link_task); 698 ether_ifdetach(ifp); 699 } 700 701 if (sc->age_tq != NULL) { 702 taskqueue_drain(sc->age_tq, &sc->age_int_task); 703 taskqueue_free(sc->age_tq); 704 sc->age_tq = NULL; 705 } 706 707 if (sc->age_miibus != NULL) { 708 device_delete_child(dev, sc->age_miibus); 709 sc->age_miibus = NULL; 710 } 711 bus_generic_detach(dev); 712 age_dma_free(sc); 713 714 if (ifp != NULL) { 715 if_free(ifp); 716 sc->age_ifp = NULL; 717 } 718 719 if ((sc->age_flags & AGE_FLAG_MSIX) != 0) 720 msic = AGE_MSIX_MESSAGES; 721 else if ((sc->age_flags & AGE_FLAG_MSI) != 0) 722 msic = AGE_MSI_MESSAGES; 723 else 724 msic = 1; 725 for (i = 0; i < msic; i++) { 726 if (sc->age_intrhand[i] != NULL) { 727 bus_teardown_intr(dev, sc->age_irq[i], 728 sc->age_intrhand[i]); 729 sc->age_intrhand[i] = NULL; 730 } 731 } 732 733 bus_release_resources(dev, sc->age_irq_spec, sc->age_irq); 734 if ((sc->age_flags & (AGE_FLAG_MSI | AGE_FLAG_MSIX)) != 0) 735 pci_release_msi(dev); 736 bus_release_resources(dev, sc->age_res_spec, sc->age_res); 737 mtx_destroy(&sc->age_mtx); 738 739 return (0); 740 } 741 742 static void 743 age_sysctl_node(struct age_softc *sc) 744 { 745 int error; 746 747 SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->age_dev), 748 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->age_dev)), OID_AUTO, 749 "stats", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 750 sc, 0, sysctl_age_stats, "I", "Statistics"); 751 752 SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->age_dev), 753 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->age_dev)), OID_AUTO, 754 "int_mod", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 755 &sc->age_int_mod, 0, sysctl_hw_age_int_mod, "I", 756 "age interrupt moderation"); 757 758 /* Pull in device tunables. */ 759 sc->age_int_mod = AGE_IM_TIMER_DEFAULT; 760 error = resource_int_value(device_get_name(sc->age_dev), 761 device_get_unit(sc->age_dev), "int_mod", &sc->age_int_mod); 762 if (error == 0) { 763 if (sc->age_int_mod < AGE_IM_TIMER_MIN || 764 sc->age_int_mod > AGE_IM_TIMER_MAX) { 765 device_printf(sc->age_dev, 766 "int_mod value out of range; using default: %d\n", 767 AGE_IM_TIMER_DEFAULT); 768 sc->age_int_mod = AGE_IM_TIMER_DEFAULT; 769 } 770 } 771 772 SYSCTL_ADD_PROC(device_get_sysctl_ctx(sc->age_dev), 773 SYSCTL_CHILDREN(device_get_sysctl_tree(sc->age_dev)), OID_AUTO, 774 "process_limit", CTLTYPE_INT | CTLFLAG_RW | CTLFLAG_NEEDGIANT, 775 &sc->age_process_limit, 0, sysctl_hw_age_proc_limit, "I", 776 "max number of Rx events to process"); 777 778 /* Pull in device tunables. */ 779 sc->age_process_limit = AGE_PROC_DEFAULT; 780 error = resource_int_value(device_get_name(sc->age_dev), 781 device_get_unit(sc->age_dev), "process_limit", 782 &sc->age_process_limit); 783 if (error == 0) { 784 if (sc->age_process_limit < AGE_PROC_MIN || 785 sc->age_process_limit > AGE_PROC_MAX) { 786 device_printf(sc->age_dev, 787 "process_limit value out of range; " 788 "using default: %d\n", AGE_PROC_DEFAULT); 789 sc->age_process_limit = AGE_PROC_DEFAULT; 790 } 791 } 792 } 793 794 struct age_dmamap_arg { 795 bus_addr_t age_busaddr; 796 }; 797 798 static void 799 age_dmamap_cb(void *arg, bus_dma_segment_t *segs, int nsegs, int error) 800 { 801 struct age_dmamap_arg *ctx; 802 803 if (error != 0) 804 return; 805 806 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 807 808 ctx = (struct age_dmamap_arg *)arg; 809 ctx->age_busaddr = segs[0].ds_addr; 810 } 811 812 /* 813 * Attansic L1 controller have single register to specify high 814 * address part of DMA blocks. So all descriptor structures and 815 * DMA memory blocks should have the same high address of given 816 * 4GB address space(i.e. crossing 4GB boundary is not allowed). 817 */ 818 static int 819 age_check_boundary(struct age_softc *sc) 820 { 821 bus_addr_t rx_ring_end, rr_ring_end, tx_ring_end; 822 bus_addr_t cmb_block_end, smb_block_end; 823 824 /* Tx/Rx descriptor queue should reside within 4GB boundary. */ 825 tx_ring_end = sc->age_rdata.age_tx_ring_paddr + AGE_TX_RING_SZ; 826 rx_ring_end = sc->age_rdata.age_rx_ring_paddr + AGE_RX_RING_SZ; 827 rr_ring_end = sc->age_rdata.age_rr_ring_paddr + AGE_RR_RING_SZ; 828 cmb_block_end = sc->age_rdata.age_cmb_block_paddr + AGE_CMB_BLOCK_SZ; 829 smb_block_end = sc->age_rdata.age_smb_block_paddr + AGE_SMB_BLOCK_SZ; 830 831 if ((AGE_ADDR_HI(tx_ring_end) != 832 AGE_ADDR_HI(sc->age_rdata.age_tx_ring_paddr)) || 833 (AGE_ADDR_HI(rx_ring_end) != 834 AGE_ADDR_HI(sc->age_rdata.age_rx_ring_paddr)) || 835 (AGE_ADDR_HI(rr_ring_end) != 836 AGE_ADDR_HI(sc->age_rdata.age_rr_ring_paddr)) || 837 (AGE_ADDR_HI(cmb_block_end) != 838 AGE_ADDR_HI(sc->age_rdata.age_cmb_block_paddr)) || 839 (AGE_ADDR_HI(smb_block_end) != 840 AGE_ADDR_HI(sc->age_rdata.age_smb_block_paddr))) 841 return (EFBIG); 842 843 if ((AGE_ADDR_HI(tx_ring_end) != AGE_ADDR_HI(rx_ring_end)) || 844 (AGE_ADDR_HI(tx_ring_end) != AGE_ADDR_HI(rr_ring_end)) || 845 (AGE_ADDR_HI(tx_ring_end) != AGE_ADDR_HI(cmb_block_end)) || 846 (AGE_ADDR_HI(tx_ring_end) != AGE_ADDR_HI(smb_block_end))) 847 return (EFBIG); 848 849 return (0); 850 } 851 852 static int 853 age_dma_alloc(struct age_softc *sc) 854 { 855 struct age_txdesc *txd; 856 struct age_rxdesc *rxd; 857 bus_addr_t lowaddr; 858 struct age_dmamap_arg ctx; 859 int error, i; 860 861 lowaddr = BUS_SPACE_MAXADDR; 862 863 again: 864 /* Create parent ring/DMA block tag. */ 865 error = bus_dma_tag_create( 866 bus_get_dma_tag(sc->age_dev), /* parent */ 867 1, 0, /* alignment, boundary */ 868 lowaddr, /* lowaddr */ 869 BUS_SPACE_MAXADDR, /* highaddr */ 870 NULL, NULL, /* filter, filterarg */ 871 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 872 0, /* nsegments */ 873 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 874 0, /* flags */ 875 NULL, NULL, /* lockfunc, lockarg */ 876 &sc->age_cdata.age_parent_tag); 877 if (error != 0) { 878 device_printf(sc->age_dev, 879 "could not create parent DMA tag.\n"); 880 goto fail; 881 } 882 883 /* Create tag for Tx ring. */ 884 error = bus_dma_tag_create( 885 sc->age_cdata.age_parent_tag, /* parent */ 886 AGE_TX_RING_ALIGN, 0, /* alignment, boundary */ 887 BUS_SPACE_MAXADDR, /* lowaddr */ 888 BUS_SPACE_MAXADDR, /* highaddr */ 889 NULL, NULL, /* filter, filterarg */ 890 AGE_TX_RING_SZ, /* maxsize */ 891 1, /* nsegments */ 892 AGE_TX_RING_SZ, /* maxsegsize */ 893 0, /* flags */ 894 NULL, NULL, /* lockfunc, lockarg */ 895 &sc->age_cdata.age_tx_ring_tag); 896 if (error != 0) { 897 device_printf(sc->age_dev, 898 "could not create Tx ring DMA tag.\n"); 899 goto fail; 900 } 901 902 /* Create tag for Rx ring. */ 903 error = bus_dma_tag_create( 904 sc->age_cdata.age_parent_tag, /* parent */ 905 AGE_RX_RING_ALIGN, 0, /* alignment, boundary */ 906 BUS_SPACE_MAXADDR, /* lowaddr */ 907 BUS_SPACE_MAXADDR, /* highaddr */ 908 NULL, NULL, /* filter, filterarg */ 909 AGE_RX_RING_SZ, /* maxsize */ 910 1, /* nsegments */ 911 AGE_RX_RING_SZ, /* maxsegsize */ 912 0, /* flags */ 913 NULL, NULL, /* lockfunc, lockarg */ 914 &sc->age_cdata.age_rx_ring_tag); 915 if (error != 0) { 916 device_printf(sc->age_dev, 917 "could not create Rx ring DMA tag.\n"); 918 goto fail; 919 } 920 921 /* Create tag for Rx return ring. */ 922 error = bus_dma_tag_create( 923 sc->age_cdata.age_parent_tag, /* parent */ 924 AGE_RR_RING_ALIGN, 0, /* alignment, boundary */ 925 BUS_SPACE_MAXADDR, /* lowaddr */ 926 BUS_SPACE_MAXADDR, /* highaddr */ 927 NULL, NULL, /* filter, filterarg */ 928 AGE_RR_RING_SZ, /* maxsize */ 929 1, /* nsegments */ 930 AGE_RR_RING_SZ, /* maxsegsize */ 931 0, /* flags */ 932 NULL, NULL, /* lockfunc, lockarg */ 933 &sc->age_cdata.age_rr_ring_tag); 934 if (error != 0) { 935 device_printf(sc->age_dev, 936 "could not create Rx return ring DMA tag.\n"); 937 goto fail; 938 } 939 940 /* Create tag for coalesing message block. */ 941 error = bus_dma_tag_create( 942 sc->age_cdata.age_parent_tag, /* parent */ 943 AGE_CMB_ALIGN, 0, /* alignment, boundary */ 944 BUS_SPACE_MAXADDR, /* lowaddr */ 945 BUS_SPACE_MAXADDR, /* highaddr */ 946 NULL, NULL, /* filter, filterarg */ 947 AGE_CMB_BLOCK_SZ, /* maxsize */ 948 1, /* nsegments */ 949 AGE_CMB_BLOCK_SZ, /* maxsegsize */ 950 0, /* flags */ 951 NULL, NULL, /* lockfunc, lockarg */ 952 &sc->age_cdata.age_cmb_block_tag); 953 if (error != 0) { 954 device_printf(sc->age_dev, 955 "could not create CMB DMA tag.\n"); 956 goto fail; 957 } 958 959 /* Create tag for statistics message block. */ 960 error = bus_dma_tag_create( 961 sc->age_cdata.age_parent_tag, /* parent */ 962 AGE_SMB_ALIGN, 0, /* alignment, boundary */ 963 BUS_SPACE_MAXADDR, /* lowaddr */ 964 BUS_SPACE_MAXADDR, /* highaddr */ 965 NULL, NULL, /* filter, filterarg */ 966 AGE_SMB_BLOCK_SZ, /* maxsize */ 967 1, /* nsegments */ 968 AGE_SMB_BLOCK_SZ, /* maxsegsize */ 969 0, /* flags */ 970 NULL, NULL, /* lockfunc, lockarg */ 971 &sc->age_cdata.age_smb_block_tag); 972 if (error != 0) { 973 device_printf(sc->age_dev, 974 "could not create SMB DMA tag.\n"); 975 goto fail; 976 } 977 978 /* Allocate DMA'able memory and load the DMA map. */ 979 error = bus_dmamem_alloc(sc->age_cdata.age_tx_ring_tag, 980 (void **)&sc->age_rdata.age_tx_ring, 981 BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 982 &sc->age_cdata.age_tx_ring_map); 983 if (error != 0) { 984 device_printf(sc->age_dev, 985 "could not allocate DMA'able memory for Tx ring.\n"); 986 goto fail; 987 } 988 ctx.age_busaddr = 0; 989 error = bus_dmamap_load(sc->age_cdata.age_tx_ring_tag, 990 sc->age_cdata.age_tx_ring_map, sc->age_rdata.age_tx_ring, 991 AGE_TX_RING_SZ, age_dmamap_cb, &ctx, 0); 992 if (error != 0 || ctx.age_busaddr == 0) { 993 device_printf(sc->age_dev, 994 "could not load DMA'able memory for Tx ring.\n"); 995 goto fail; 996 } 997 sc->age_rdata.age_tx_ring_paddr = ctx.age_busaddr; 998 /* Rx ring */ 999 error = bus_dmamem_alloc(sc->age_cdata.age_rx_ring_tag, 1000 (void **)&sc->age_rdata.age_rx_ring, 1001 BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 1002 &sc->age_cdata.age_rx_ring_map); 1003 if (error != 0) { 1004 device_printf(sc->age_dev, 1005 "could not allocate DMA'able memory for Rx ring.\n"); 1006 goto fail; 1007 } 1008 ctx.age_busaddr = 0; 1009 error = bus_dmamap_load(sc->age_cdata.age_rx_ring_tag, 1010 sc->age_cdata.age_rx_ring_map, sc->age_rdata.age_rx_ring, 1011 AGE_RX_RING_SZ, age_dmamap_cb, &ctx, 0); 1012 if (error != 0 || ctx.age_busaddr == 0) { 1013 device_printf(sc->age_dev, 1014 "could not load DMA'able memory for Rx ring.\n"); 1015 goto fail; 1016 } 1017 sc->age_rdata.age_rx_ring_paddr = ctx.age_busaddr; 1018 /* Rx return ring */ 1019 error = bus_dmamem_alloc(sc->age_cdata.age_rr_ring_tag, 1020 (void **)&sc->age_rdata.age_rr_ring, 1021 BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 1022 &sc->age_cdata.age_rr_ring_map); 1023 if (error != 0) { 1024 device_printf(sc->age_dev, 1025 "could not allocate DMA'able memory for Rx return ring.\n"); 1026 goto fail; 1027 } 1028 ctx.age_busaddr = 0; 1029 error = bus_dmamap_load(sc->age_cdata.age_rr_ring_tag, 1030 sc->age_cdata.age_rr_ring_map, sc->age_rdata.age_rr_ring, 1031 AGE_RR_RING_SZ, age_dmamap_cb, 1032 &ctx, 0); 1033 if (error != 0 || ctx.age_busaddr == 0) { 1034 device_printf(sc->age_dev, 1035 "could not load DMA'able memory for Rx return ring.\n"); 1036 goto fail; 1037 } 1038 sc->age_rdata.age_rr_ring_paddr = ctx.age_busaddr; 1039 /* CMB block */ 1040 error = bus_dmamem_alloc(sc->age_cdata.age_cmb_block_tag, 1041 (void **)&sc->age_rdata.age_cmb_block, 1042 BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 1043 &sc->age_cdata.age_cmb_block_map); 1044 if (error != 0) { 1045 device_printf(sc->age_dev, 1046 "could not allocate DMA'able memory for CMB block.\n"); 1047 goto fail; 1048 } 1049 ctx.age_busaddr = 0; 1050 error = bus_dmamap_load(sc->age_cdata.age_cmb_block_tag, 1051 sc->age_cdata.age_cmb_block_map, sc->age_rdata.age_cmb_block, 1052 AGE_CMB_BLOCK_SZ, age_dmamap_cb, &ctx, 0); 1053 if (error != 0 || ctx.age_busaddr == 0) { 1054 device_printf(sc->age_dev, 1055 "could not load DMA'able memory for CMB block.\n"); 1056 goto fail; 1057 } 1058 sc->age_rdata.age_cmb_block_paddr = ctx.age_busaddr; 1059 /* SMB block */ 1060 error = bus_dmamem_alloc(sc->age_cdata.age_smb_block_tag, 1061 (void **)&sc->age_rdata.age_smb_block, 1062 BUS_DMA_WAITOK | BUS_DMA_ZERO | BUS_DMA_COHERENT, 1063 &sc->age_cdata.age_smb_block_map); 1064 if (error != 0) { 1065 device_printf(sc->age_dev, 1066 "could not allocate DMA'able memory for SMB block.\n"); 1067 goto fail; 1068 } 1069 ctx.age_busaddr = 0; 1070 error = bus_dmamap_load(sc->age_cdata.age_smb_block_tag, 1071 sc->age_cdata.age_smb_block_map, sc->age_rdata.age_smb_block, 1072 AGE_SMB_BLOCK_SZ, age_dmamap_cb, &ctx, 0); 1073 if (error != 0 || ctx.age_busaddr == 0) { 1074 device_printf(sc->age_dev, 1075 "could not load DMA'able memory for SMB block.\n"); 1076 goto fail; 1077 } 1078 sc->age_rdata.age_smb_block_paddr = ctx.age_busaddr; 1079 1080 /* 1081 * All ring buffer and DMA blocks should have the same 1082 * high address part of 64bit DMA address space. 1083 */ 1084 if (lowaddr != BUS_SPACE_MAXADDR_32BIT && 1085 (error = age_check_boundary(sc)) != 0) { 1086 device_printf(sc->age_dev, "4GB boundary crossed, " 1087 "switching to 32bit DMA addressing mode.\n"); 1088 age_dma_free(sc); 1089 /* Limit DMA address space to 32bit and try again. */ 1090 lowaddr = BUS_SPACE_MAXADDR_32BIT; 1091 goto again; 1092 } 1093 1094 /* 1095 * Create Tx/Rx buffer parent tag. 1096 * L1 supports full 64bit DMA addressing in Tx/Rx buffers 1097 * so it needs separate parent DMA tag. 1098 * XXX 1099 * It seems enabling 64bit DMA causes data corruption. Limit 1100 * DMA address space to 32bit. 1101 */ 1102 error = bus_dma_tag_create( 1103 bus_get_dma_tag(sc->age_dev), /* parent */ 1104 1, 0, /* alignment, boundary */ 1105 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1106 BUS_SPACE_MAXADDR, /* highaddr */ 1107 NULL, NULL, /* filter, filterarg */ 1108 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 1109 0, /* nsegments */ 1110 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1111 0, /* flags */ 1112 NULL, NULL, /* lockfunc, lockarg */ 1113 &sc->age_cdata.age_buffer_tag); 1114 if (error != 0) { 1115 device_printf(sc->age_dev, 1116 "could not create parent buffer DMA tag.\n"); 1117 goto fail; 1118 } 1119 1120 /* Create tag for Tx buffers. */ 1121 error = bus_dma_tag_create( 1122 sc->age_cdata.age_buffer_tag, /* parent */ 1123 1, 0, /* alignment, boundary */ 1124 BUS_SPACE_MAXADDR, /* lowaddr */ 1125 BUS_SPACE_MAXADDR, /* highaddr */ 1126 NULL, NULL, /* filter, filterarg */ 1127 AGE_TSO_MAXSIZE, /* maxsize */ 1128 AGE_MAXTXSEGS, /* nsegments */ 1129 AGE_TSO_MAXSEGSIZE, /* maxsegsize */ 1130 0, /* flags */ 1131 NULL, NULL, /* lockfunc, lockarg */ 1132 &sc->age_cdata.age_tx_tag); 1133 if (error != 0) { 1134 device_printf(sc->age_dev, "could not create Tx DMA tag.\n"); 1135 goto fail; 1136 } 1137 1138 /* Create tag for Rx buffers. */ 1139 error = bus_dma_tag_create( 1140 sc->age_cdata.age_buffer_tag, /* parent */ 1141 AGE_RX_BUF_ALIGN, 0, /* alignment, boundary */ 1142 BUS_SPACE_MAXADDR, /* lowaddr */ 1143 BUS_SPACE_MAXADDR, /* highaddr */ 1144 NULL, NULL, /* filter, filterarg */ 1145 MCLBYTES, /* maxsize */ 1146 1, /* nsegments */ 1147 MCLBYTES, /* maxsegsize */ 1148 0, /* flags */ 1149 NULL, NULL, /* lockfunc, lockarg */ 1150 &sc->age_cdata.age_rx_tag); 1151 if (error != 0) { 1152 device_printf(sc->age_dev, "could not create Rx DMA tag.\n"); 1153 goto fail; 1154 } 1155 1156 /* Create DMA maps for Tx buffers. */ 1157 for (i = 0; i < AGE_TX_RING_CNT; i++) { 1158 txd = &sc->age_cdata.age_txdesc[i]; 1159 txd->tx_m = NULL; 1160 txd->tx_dmamap = NULL; 1161 error = bus_dmamap_create(sc->age_cdata.age_tx_tag, 0, 1162 &txd->tx_dmamap); 1163 if (error != 0) { 1164 device_printf(sc->age_dev, 1165 "could not create Tx dmamap.\n"); 1166 goto fail; 1167 } 1168 } 1169 /* Create DMA maps for Rx buffers. */ 1170 if ((error = bus_dmamap_create(sc->age_cdata.age_rx_tag, 0, 1171 &sc->age_cdata.age_rx_sparemap)) != 0) { 1172 device_printf(sc->age_dev, 1173 "could not create spare Rx dmamap.\n"); 1174 goto fail; 1175 } 1176 for (i = 0; i < AGE_RX_RING_CNT; i++) { 1177 rxd = &sc->age_cdata.age_rxdesc[i]; 1178 rxd->rx_m = NULL; 1179 rxd->rx_dmamap = NULL; 1180 error = bus_dmamap_create(sc->age_cdata.age_rx_tag, 0, 1181 &rxd->rx_dmamap); 1182 if (error != 0) { 1183 device_printf(sc->age_dev, 1184 "could not create Rx dmamap.\n"); 1185 goto fail; 1186 } 1187 } 1188 1189 fail: 1190 return (error); 1191 } 1192 1193 static void 1194 age_dma_free(struct age_softc *sc) 1195 { 1196 struct age_txdesc *txd; 1197 struct age_rxdesc *rxd; 1198 int i; 1199 1200 /* Tx buffers */ 1201 if (sc->age_cdata.age_tx_tag != NULL) { 1202 for (i = 0; i < AGE_TX_RING_CNT; i++) { 1203 txd = &sc->age_cdata.age_txdesc[i]; 1204 if (txd->tx_dmamap != NULL) { 1205 bus_dmamap_destroy(sc->age_cdata.age_tx_tag, 1206 txd->tx_dmamap); 1207 txd->tx_dmamap = NULL; 1208 } 1209 } 1210 bus_dma_tag_destroy(sc->age_cdata.age_tx_tag); 1211 sc->age_cdata.age_tx_tag = NULL; 1212 } 1213 /* Rx buffers */ 1214 if (sc->age_cdata.age_rx_tag != NULL) { 1215 for (i = 0; i < AGE_RX_RING_CNT; i++) { 1216 rxd = &sc->age_cdata.age_rxdesc[i]; 1217 if (rxd->rx_dmamap != NULL) { 1218 bus_dmamap_destroy(sc->age_cdata.age_rx_tag, 1219 rxd->rx_dmamap); 1220 rxd->rx_dmamap = NULL; 1221 } 1222 } 1223 if (sc->age_cdata.age_rx_sparemap != NULL) { 1224 bus_dmamap_destroy(sc->age_cdata.age_rx_tag, 1225 sc->age_cdata.age_rx_sparemap); 1226 sc->age_cdata.age_rx_sparemap = NULL; 1227 } 1228 bus_dma_tag_destroy(sc->age_cdata.age_rx_tag); 1229 sc->age_cdata.age_rx_tag = NULL; 1230 } 1231 /* Tx ring. */ 1232 if (sc->age_cdata.age_tx_ring_tag != NULL) { 1233 if (sc->age_rdata.age_tx_ring_paddr != 0) 1234 bus_dmamap_unload(sc->age_cdata.age_tx_ring_tag, 1235 sc->age_cdata.age_tx_ring_map); 1236 if (sc->age_rdata.age_tx_ring != NULL) 1237 bus_dmamem_free(sc->age_cdata.age_tx_ring_tag, 1238 sc->age_rdata.age_tx_ring, 1239 sc->age_cdata.age_tx_ring_map); 1240 sc->age_rdata.age_tx_ring_paddr = 0; 1241 sc->age_rdata.age_tx_ring = NULL; 1242 bus_dma_tag_destroy(sc->age_cdata.age_tx_ring_tag); 1243 sc->age_cdata.age_tx_ring_tag = NULL; 1244 } 1245 /* Rx ring. */ 1246 if (sc->age_cdata.age_rx_ring_tag != NULL) { 1247 if (sc->age_rdata.age_rx_ring_paddr != 0) 1248 bus_dmamap_unload(sc->age_cdata.age_rx_ring_tag, 1249 sc->age_cdata.age_rx_ring_map); 1250 if (sc->age_rdata.age_rx_ring != NULL) 1251 bus_dmamem_free(sc->age_cdata.age_rx_ring_tag, 1252 sc->age_rdata.age_rx_ring, 1253 sc->age_cdata.age_rx_ring_map); 1254 sc->age_rdata.age_rx_ring_paddr = 0; 1255 sc->age_rdata.age_rx_ring = NULL; 1256 bus_dma_tag_destroy(sc->age_cdata.age_rx_ring_tag); 1257 sc->age_cdata.age_rx_ring_tag = NULL; 1258 } 1259 /* Rx return ring. */ 1260 if (sc->age_cdata.age_rr_ring_tag != NULL) { 1261 if (sc->age_rdata.age_rr_ring_paddr != 0) 1262 bus_dmamap_unload(sc->age_cdata.age_rr_ring_tag, 1263 sc->age_cdata.age_rr_ring_map); 1264 if (sc->age_rdata.age_rr_ring != NULL) 1265 bus_dmamem_free(sc->age_cdata.age_rr_ring_tag, 1266 sc->age_rdata.age_rr_ring, 1267 sc->age_cdata.age_rr_ring_map); 1268 sc->age_rdata.age_rr_ring_paddr = 0; 1269 sc->age_rdata.age_rr_ring = NULL; 1270 bus_dma_tag_destroy(sc->age_cdata.age_rr_ring_tag); 1271 sc->age_cdata.age_rr_ring_tag = NULL; 1272 } 1273 /* CMB block */ 1274 if (sc->age_cdata.age_cmb_block_tag != NULL) { 1275 if (sc->age_rdata.age_cmb_block_paddr != 0) 1276 bus_dmamap_unload(sc->age_cdata.age_cmb_block_tag, 1277 sc->age_cdata.age_cmb_block_map); 1278 if (sc->age_rdata.age_cmb_block != NULL) 1279 bus_dmamem_free(sc->age_cdata.age_cmb_block_tag, 1280 sc->age_rdata.age_cmb_block, 1281 sc->age_cdata.age_cmb_block_map); 1282 sc->age_rdata.age_cmb_block_paddr = 0; 1283 sc->age_rdata.age_cmb_block = NULL; 1284 bus_dma_tag_destroy(sc->age_cdata.age_cmb_block_tag); 1285 sc->age_cdata.age_cmb_block_tag = NULL; 1286 } 1287 /* SMB block */ 1288 if (sc->age_cdata.age_smb_block_tag != NULL) { 1289 if (sc->age_rdata.age_smb_block_paddr != 0) 1290 bus_dmamap_unload(sc->age_cdata.age_smb_block_tag, 1291 sc->age_cdata.age_smb_block_map); 1292 if (sc->age_rdata.age_smb_block != NULL) 1293 bus_dmamem_free(sc->age_cdata.age_smb_block_tag, 1294 sc->age_rdata.age_smb_block, 1295 sc->age_cdata.age_smb_block_map); 1296 sc->age_rdata.age_smb_block_paddr = 0; 1297 sc->age_rdata.age_smb_block = NULL; 1298 bus_dma_tag_destroy(sc->age_cdata.age_smb_block_tag); 1299 sc->age_cdata.age_smb_block_tag = NULL; 1300 } 1301 1302 if (sc->age_cdata.age_buffer_tag != NULL) { 1303 bus_dma_tag_destroy(sc->age_cdata.age_buffer_tag); 1304 sc->age_cdata.age_buffer_tag = NULL; 1305 } 1306 if (sc->age_cdata.age_parent_tag != NULL) { 1307 bus_dma_tag_destroy(sc->age_cdata.age_parent_tag); 1308 sc->age_cdata.age_parent_tag = NULL; 1309 } 1310 } 1311 1312 /* 1313 * Make sure the interface is stopped at reboot time. 1314 */ 1315 static int 1316 age_shutdown(device_t dev) 1317 { 1318 1319 return (age_suspend(dev)); 1320 } 1321 1322 static void 1323 age_setwol(struct age_softc *sc) 1324 { 1325 struct ifnet *ifp; 1326 struct mii_data *mii; 1327 uint32_t reg, pmcs; 1328 uint16_t pmstat; 1329 int aneg, i, pmc; 1330 1331 AGE_LOCK_ASSERT(sc); 1332 1333 if (pci_find_cap(sc->age_dev, PCIY_PMG, &pmc) != 0) { 1334 CSR_WRITE_4(sc, AGE_WOL_CFG, 0); 1335 /* 1336 * No PME capability, PHY power down. 1337 * XXX 1338 * Due to an unknown reason powering down PHY resulted 1339 * in unexpected results such as inaccessbility of 1340 * hardware of freshly rebooted system. Disable 1341 * powering down PHY until I got more information for 1342 * Attansic/Atheros PHY hardwares. 1343 */ 1344 #ifdef notyet 1345 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 1346 MII_BMCR, BMCR_PDOWN); 1347 #endif 1348 return; 1349 } 1350 1351 ifp = sc->age_ifp; 1352 if ((ifp->if_capenable & IFCAP_WOL) != 0) { 1353 /* 1354 * Note, this driver resets the link speed to 10/100Mbps with 1355 * auto-negotiation but we don't know whether that operation 1356 * would succeed or not as it have no control after powering 1357 * off. If the renegotiation fail WOL may not work. Running 1358 * at 1Gbps will draw more power than 375mA at 3.3V which is 1359 * specified in PCI specification and that would result in 1360 * complete shutdowning power to ethernet controller. 1361 * 1362 * TODO 1363 * Save current negotiated media speed/duplex/flow-control 1364 * to softc and restore the same link again after resuming. 1365 * PHY handling such as power down/resetting to 100Mbps 1366 * may be better handled in suspend method in phy driver. 1367 */ 1368 mii = device_get_softc(sc->age_miibus); 1369 mii_pollstat(mii); 1370 aneg = 0; 1371 if ((mii->mii_media_status & IFM_AVALID) != 0) { 1372 switch IFM_SUBTYPE(mii->mii_media_active) { 1373 case IFM_10_T: 1374 case IFM_100_TX: 1375 goto got_link; 1376 case IFM_1000_T: 1377 aneg++; 1378 default: 1379 break; 1380 } 1381 } 1382 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 1383 MII_100T2CR, 0); 1384 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 1385 MII_ANAR, ANAR_TX_FD | ANAR_TX | ANAR_10_FD | 1386 ANAR_10 | ANAR_CSMA); 1387 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 1388 MII_BMCR, BMCR_RESET | BMCR_AUTOEN | BMCR_STARTNEG); 1389 DELAY(1000); 1390 if (aneg != 0) { 1391 /* Poll link state until age(4) get a 10/100 link. */ 1392 for (i = 0; i < MII_ANEGTICKS_GIGE; i++) { 1393 mii_pollstat(mii); 1394 if ((mii->mii_media_status & IFM_AVALID) != 0) { 1395 switch (IFM_SUBTYPE( 1396 mii->mii_media_active)) { 1397 case IFM_10_T: 1398 case IFM_100_TX: 1399 age_mac_config(sc); 1400 goto got_link; 1401 default: 1402 break; 1403 } 1404 } 1405 AGE_UNLOCK(sc); 1406 pause("agelnk", hz); 1407 AGE_LOCK(sc); 1408 } 1409 if (i == MII_ANEGTICKS_GIGE) 1410 device_printf(sc->age_dev, 1411 "establishing link failed, " 1412 "WOL may not work!"); 1413 } 1414 /* 1415 * No link, force MAC to have 100Mbps, full-duplex link. 1416 * This is the last resort and may/may not work. 1417 */ 1418 mii->mii_media_status = IFM_AVALID | IFM_ACTIVE; 1419 mii->mii_media_active = IFM_ETHER | IFM_100_TX | IFM_FDX; 1420 age_mac_config(sc); 1421 } 1422 1423 got_link: 1424 pmcs = 0; 1425 if ((ifp->if_capenable & IFCAP_WOL_MAGIC) != 0) 1426 pmcs |= WOL_CFG_MAGIC | WOL_CFG_MAGIC_ENB; 1427 CSR_WRITE_4(sc, AGE_WOL_CFG, pmcs); 1428 reg = CSR_READ_4(sc, AGE_MAC_CFG); 1429 reg &= ~(MAC_CFG_DBG | MAC_CFG_PROMISC); 1430 reg &= ~(MAC_CFG_ALLMULTI | MAC_CFG_BCAST); 1431 if ((ifp->if_capenable & IFCAP_WOL_MCAST) != 0) 1432 reg |= MAC_CFG_ALLMULTI | MAC_CFG_BCAST; 1433 if ((ifp->if_capenable & IFCAP_WOL) != 0) { 1434 reg |= MAC_CFG_RX_ENB; 1435 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 1436 } 1437 1438 /* Request PME. */ 1439 pmstat = pci_read_config(sc->age_dev, pmc + PCIR_POWER_STATUS, 2); 1440 pmstat &= ~(PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE); 1441 if ((ifp->if_capenable & IFCAP_WOL) != 0) 1442 pmstat |= PCIM_PSTAT_PME | PCIM_PSTAT_PMEENABLE; 1443 pci_write_config(sc->age_dev, pmc + PCIR_POWER_STATUS, pmstat, 2); 1444 #ifdef notyet 1445 /* See above for powering down PHY issues. */ 1446 if ((ifp->if_capenable & IFCAP_WOL) == 0) { 1447 /* No WOL, PHY power down. */ 1448 age_miibus_writereg(sc->age_dev, sc->age_phyaddr, 1449 MII_BMCR, BMCR_PDOWN); 1450 } 1451 #endif 1452 } 1453 1454 static int 1455 age_suspend(device_t dev) 1456 { 1457 struct age_softc *sc; 1458 1459 sc = device_get_softc(dev); 1460 1461 AGE_LOCK(sc); 1462 age_stop(sc); 1463 age_setwol(sc); 1464 AGE_UNLOCK(sc); 1465 1466 return (0); 1467 } 1468 1469 static int 1470 age_resume(device_t dev) 1471 { 1472 struct age_softc *sc; 1473 struct ifnet *ifp; 1474 1475 sc = device_get_softc(dev); 1476 1477 AGE_LOCK(sc); 1478 age_phy_reset(sc); 1479 ifp = sc->age_ifp; 1480 if ((ifp->if_flags & IFF_UP) != 0) 1481 age_init_locked(sc); 1482 1483 AGE_UNLOCK(sc); 1484 1485 return (0); 1486 } 1487 1488 static int 1489 age_encap(struct age_softc *sc, struct mbuf **m_head) 1490 { 1491 struct age_txdesc *txd, *txd_last; 1492 struct tx_desc *desc; 1493 struct mbuf *m; 1494 struct ip *ip; 1495 struct tcphdr *tcp; 1496 bus_dma_segment_t txsegs[AGE_MAXTXSEGS]; 1497 bus_dmamap_t map; 1498 uint32_t cflags, hdrlen, ip_off, poff, vtag; 1499 int error, i, nsegs, prod, si; 1500 1501 AGE_LOCK_ASSERT(sc); 1502 1503 M_ASSERTPKTHDR((*m_head)); 1504 1505 m = *m_head; 1506 ip = NULL; 1507 tcp = NULL; 1508 cflags = vtag = 0; 1509 ip_off = poff = 0; 1510 if ((m->m_pkthdr.csum_flags & (AGE_CSUM_FEATURES | CSUM_TSO)) != 0) { 1511 /* 1512 * L1 requires offset of TCP/UDP payload in its Tx 1513 * descriptor to perform hardware Tx checksum offload. 1514 * Additionally, TSO requires IP/TCP header size and 1515 * modification of IP/TCP header in order to make TSO 1516 * engine work. This kind of operation takes many CPU 1517 * cycles on FreeBSD so fast host CPU is needed to get 1518 * smooth TSO performance. 1519 */ 1520 struct ether_header *eh; 1521 1522 if (M_WRITABLE(m) == 0) { 1523 /* Get a writable copy. */ 1524 m = m_dup(*m_head, M_NOWAIT); 1525 /* Release original mbufs. */ 1526 m_freem(*m_head); 1527 if (m == NULL) { 1528 *m_head = NULL; 1529 return (ENOBUFS); 1530 } 1531 *m_head = m; 1532 } 1533 ip_off = sizeof(struct ether_header); 1534 m = m_pullup(m, ip_off); 1535 if (m == NULL) { 1536 *m_head = NULL; 1537 return (ENOBUFS); 1538 } 1539 eh = mtod(m, struct ether_header *); 1540 /* 1541 * Check if hardware VLAN insertion is off. 1542 * Additional check for LLC/SNAP frame? 1543 */ 1544 if (eh->ether_type == htons(ETHERTYPE_VLAN)) { 1545 ip_off = sizeof(struct ether_vlan_header); 1546 m = m_pullup(m, ip_off); 1547 if (m == NULL) { 1548 *m_head = NULL; 1549 return (ENOBUFS); 1550 } 1551 } 1552 m = m_pullup(m, ip_off + sizeof(struct ip)); 1553 if (m == NULL) { 1554 *m_head = NULL; 1555 return (ENOBUFS); 1556 } 1557 ip = (struct ip *)(mtod(m, char *) + ip_off); 1558 poff = ip_off + (ip->ip_hl << 2); 1559 if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 1560 m = m_pullup(m, poff + sizeof(struct tcphdr)); 1561 if (m == NULL) { 1562 *m_head = NULL; 1563 return (ENOBUFS); 1564 } 1565 tcp = (struct tcphdr *)(mtod(m, char *) + poff); 1566 m = m_pullup(m, poff + (tcp->th_off << 2)); 1567 if (m == NULL) { 1568 *m_head = NULL; 1569 return (ENOBUFS); 1570 } 1571 /* 1572 * L1 requires IP/TCP header size and offset as 1573 * well as TCP pseudo checksum which complicates 1574 * TSO configuration. I guess this comes from the 1575 * adherence to Microsoft NDIS Large Send 1576 * specification which requires insertion of 1577 * pseudo checksum by upper stack. The pseudo 1578 * checksum that NDIS refers to doesn't include 1579 * TCP payload length so age(4) should recompute 1580 * the pseudo checksum here. Hopefully this wouldn't 1581 * be much burden on modern CPUs. 1582 * Reset IP checksum and recompute TCP pseudo 1583 * checksum as NDIS specification said. 1584 */ 1585 ip = (struct ip *)(mtod(m, char *) + ip_off); 1586 tcp = (struct tcphdr *)(mtod(m, char *) + poff); 1587 ip->ip_sum = 0; 1588 tcp->th_sum = in_pseudo(ip->ip_src.s_addr, 1589 ip->ip_dst.s_addr, htons(IPPROTO_TCP)); 1590 } 1591 *m_head = m; 1592 } 1593 1594 si = prod = sc->age_cdata.age_tx_prod; 1595 txd = &sc->age_cdata.age_txdesc[prod]; 1596 txd_last = txd; 1597 map = txd->tx_dmamap; 1598 1599 error = bus_dmamap_load_mbuf_sg(sc->age_cdata.age_tx_tag, map, 1600 *m_head, txsegs, &nsegs, 0); 1601 if (error == EFBIG) { 1602 m = m_collapse(*m_head, M_NOWAIT, AGE_MAXTXSEGS); 1603 if (m == NULL) { 1604 m_freem(*m_head); 1605 *m_head = NULL; 1606 return (ENOMEM); 1607 } 1608 *m_head = m; 1609 error = bus_dmamap_load_mbuf_sg(sc->age_cdata.age_tx_tag, map, 1610 *m_head, txsegs, &nsegs, 0); 1611 if (error != 0) { 1612 m_freem(*m_head); 1613 *m_head = NULL; 1614 return (error); 1615 } 1616 } else if (error != 0) 1617 return (error); 1618 if (nsegs == 0) { 1619 m_freem(*m_head); 1620 *m_head = NULL; 1621 return (EIO); 1622 } 1623 1624 /* Check descriptor overrun. */ 1625 if (sc->age_cdata.age_tx_cnt + nsegs >= AGE_TX_RING_CNT - 2) { 1626 bus_dmamap_unload(sc->age_cdata.age_tx_tag, map); 1627 return (ENOBUFS); 1628 } 1629 1630 m = *m_head; 1631 /* Configure VLAN hardware tag insertion. */ 1632 if ((m->m_flags & M_VLANTAG) != 0) { 1633 vtag = AGE_TX_VLAN_TAG(m->m_pkthdr.ether_vtag); 1634 vtag = ((vtag << AGE_TD_VLAN_SHIFT) & AGE_TD_VLAN_MASK); 1635 cflags |= AGE_TD_INSERT_VLAN_TAG; 1636 } 1637 1638 desc = NULL; 1639 i = 0; 1640 if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 1641 /* Request TSO and set MSS. */ 1642 cflags |= AGE_TD_TSO_IPV4; 1643 cflags |= AGE_TD_IPCSUM | AGE_TD_TCPCSUM; 1644 cflags |= ((uint32_t)m->m_pkthdr.tso_segsz << 1645 AGE_TD_TSO_MSS_SHIFT); 1646 /* Set IP/TCP header size. */ 1647 cflags |= ip->ip_hl << AGE_TD_IPHDR_LEN_SHIFT; 1648 cflags |= tcp->th_off << AGE_TD_TSO_TCPHDR_LEN_SHIFT; 1649 /* 1650 * L1 requires the first buffer should only hold IP/TCP 1651 * header data. TCP payload should be handled in other 1652 * descriptors. 1653 */ 1654 hdrlen = poff + (tcp->th_off << 2); 1655 desc = &sc->age_rdata.age_tx_ring[prod]; 1656 desc->addr = htole64(txsegs[0].ds_addr); 1657 desc->len = htole32(AGE_TX_BYTES(hdrlen) | vtag); 1658 desc->flags = htole32(cflags); 1659 sc->age_cdata.age_tx_cnt++; 1660 AGE_DESC_INC(prod, AGE_TX_RING_CNT); 1661 if (m->m_len - hdrlen > 0) { 1662 /* Handle remaining payload of the 1st fragment. */ 1663 desc = &sc->age_rdata.age_tx_ring[prod]; 1664 desc->addr = htole64(txsegs[0].ds_addr + hdrlen); 1665 desc->len = htole32(AGE_TX_BYTES(m->m_len - hdrlen) | 1666 vtag); 1667 desc->flags = htole32(cflags); 1668 sc->age_cdata.age_tx_cnt++; 1669 AGE_DESC_INC(prod, AGE_TX_RING_CNT); 1670 } 1671 /* Handle remaining fragments. */ 1672 i = 1; 1673 } else if ((m->m_pkthdr.csum_flags & AGE_CSUM_FEATURES) != 0) { 1674 /* Configure Tx IP/TCP/UDP checksum offload. */ 1675 cflags |= AGE_TD_CSUM; 1676 if ((m->m_pkthdr.csum_flags & CSUM_TCP) != 0) 1677 cflags |= AGE_TD_TCPCSUM; 1678 if ((m->m_pkthdr.csum_flags & CSUM_UDP) != 0) 1679 cflags |= AGE_TD_UDPCSUM; 1680 /* Set checksum start offset. */ 1681 cflags |= (poff << AGE_TD_CSUM_PLOADOFFSET_SHIFT); 1682 /* Set checksum insertion position of TCP/UDP. */ 1683 cflags |= ((poff + m->m_pkthdr.csum_data) << 1684 AGE_TD_CSUM_XSUMOFFSET_SHIFT); 1685 } 1686 for (; i < nsegs; i++) { 1687 desc = &sc->age_rdata.age_tx_ring[prod]; 1688 desc->addr = htole64(txsegs[i].ds_addr); 1689 desc->len = htole32(AGE_TX_BYTES(txsegs[i].ds_len) | vtag); 1690 desc->flags = htole32(cflags); 1691 sc->age_cdata.age_tx_cnt++; 1692 AGE_DESC_INC(prod, AGE_TX_RING_CNT); 1693 } 1694 /* Update producer index. */ 1695 sc->age_cdata.age_tx_prod = prod; 1696 1697 /* Set EOP on the last descriptor. */ 1698 prod = (prod + AGE_TX_RING_CNT - 1) % AGE_TX_RING_CNT; 1699 desc = &sc->age_rdata.age_tx_ring[prod]; 1700 desc->flags |= htole32(AGE_TD_EOP); 1701 1702 /* Lastly set TSO header and modify IP/TCP header for TSO operation. */ 1703 if ((m->m_pkthdr.csum_flags & CSUM_TSO) != 0) { 1704 desc = &sc->age_rdata.age_tx_ring[si]; 1705 desc->flags |= htole32(AGE_TD_TSO_HDR); 1706 } 1707 1708 /* Swap dmamap of the first and the last. */ 1709 txd = &sc->age_cdata.age_txdesc[prod]; 1710 map = txd_last->tx_dmamap; 1711 txd_last->tx_dmamap = txd->tx_dmamap; 1712 txd->tx_dmamap = map; 1713 txd->tx_m = m; 1714 1715 /* Sync descriptors. */ 1716 bus_dmamap_sync(sc->age_cdata.age_tx_tag, map, BUS_DMASYNC_PREWRITE); 1717 bus_dmamap_sync(sc->age_cdata.age_tx_ring_tag, 1718 sc->age_cdata.age_tx_ring_map, 1719 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 1720 1721 return (0); 1722 } 1723 1724 static void 1725 age_start(struct ifnet *ifp) 1726 { 1727 struct age_softc *sc; 1728 1729 sc = ifp->if_softc; 1730 AGE_LOCK(sc); 1731 age_start_locked(ifp); 1732 AGE_UNLOCK(sc); 1733 } 1734 1735 static void 1736 age_start_locked(struct ifnet *ifp) 1737 { 1738 struct age_softc *sc; 1739 struct mbuf *m_head; 1740 int enq; 1741 1742 sc = ifp->if_softc; 1743 1744 AGE_LOCK_ASSERT(sc); 1745 1746 if ((ifp->if_drv_flags & (IFF_DRV_RUNNING | IFF_DRV_OACTIVE)) != 1747 IFF_DRV_RUNNING || (sc->age_flags & AGE_FLAG_LINK) == 0) 1748 return; 1749 1750 for (enq = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd); ) { 1751 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); 1752 if (m_head == NULL) 1753 break; 1754 /* 1755 * Pack the data into the transmit ring. If we 1756 * don't have room, set the OACTIVE flag and wait 1757 * for the NIC to drain the ring. 1758 */ 1759 if (age_encap(sc, &m_head)) { 1760 if (m_head == NULL) 1761 break; 1762 IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 1763 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 1764 break; 1765 } 1766 1767 enq++; 1768 /* 1769 * If there's a BPF listener, bounce a copy of this frame 1770 * to him. 1771 */ 1772 ETHER_BPF_MTAP(ifp, m_head); 1773 } 1774 1775 if (enq > 0) { 1776 /* Update mbox. */ 1777 AGE_COMMIT_MBOX(sc); 1778 /* Set a timeout in case the chip goes out to lunch. */ 1779 sc->age_watchdog_timer = AGE_TX_TIMEOUT; 1780 } 1781 } 1782 1783 static void 1784 age_watchdog(struct age_softc *sc) 1785 { 1786 struct ifnet *ifp; 1787 1788 AGE_LOCK_ASSERT(sc); 1789 1790 if (sc->age_watchdog_timer == 0 || --sc->age_watchdog_timer) 1791 return; 1792 1793 ifp = sc->age_ifp; 1794 if ((sc->age_flags & AGE_FLAG_LINK) == 0) { 1795 if_printf(sc->age_ifp, "watchdog timeout (missed link)\n"); 1796 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1797 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1798 age_init_locked(sc); 1799 return; 1800 } 1801 if (sc->age_cdata.age_tx_cnt == 0) { 1802 if_printf(sc->age_ifp, 1803 "watchdog timeout (missed Tx interrupts) -- recovering\n"); 1804 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 1805 age_start_locked(ifp); 1806 return; 1807 } 1808 if_printf(sc->age_ifp, "watchdog timeout\n"); 1809 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 1810 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1811 age_init_locked(sc); 1812 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 1813 age_start_locked(ifp); 1814 } 1815 1816 static int 1817 age_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) 1818 { 1819 struct age_softc *sc; 1820 struct ifreq *ifr; 1821 struct mii_data *mii; 1822 uint32_t reg; 1823 int error, mask; 1824 1825 sc = ifp->if_softc; 1826 ifr = (struct ifreq *)data; 1827 error = 0; 1828 switch (cmd) { 1829 case SIOCSIFMTU: 1830 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > AGE_JUMBO_MTU) 1831 error = EINVAL; 1832 else if (ifp->if_mtu != ifr->ifr_mtu) { 1833 AGE_LOCK(sc); 1834 ifp->if_mtu = ifr->ifr_mtu; 1835 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) { 1836 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1837 age_init_locked(sc); 1838 } 1839 AGE_UNLOCK(sc); 1840 } 1841 break; 1842 case SIOCSIFFLAGS: 1843 AGE_LOCK(sc); 1844 if ((ifp->if_flags & IFF_UP) != 0) { 1845 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) { 1846 if (((ifp->if_flags ^ sc->age_if_flags) 1847 & (IFF_PROMISC | IFF_ALLMULTI)) != 0) 1848 age_rxfilter(sc); 1849 } else { 1850 if ((sc->age_flags & AGE_FLAG_DETACH) == 0) 1851 age_init_locked(sc); 1852 } 1853 } else { 1854 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 1855 age_stop(sc); 1856 } 1857 sc->age_if_flags = ifp->if_flags; 1858 AGE_UNLOCK(sc); 1859 break; 1860 case SIOCADDMULTI: 1861 case SIOCDELMULTI: 1862 AGE_LOCK(sc); 1863 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 1864 age_rxfilter(sc); 1865 AGE_UNLOCK(sc); 1866 break; 1867 case SIOCSIFMEDIA: 1868 case SIOCGIFMEDIA: 1869 mii = device_get_softc(sc->age_miibus); 1870 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd); 1871 break; 1872 case SIOCSIFCAP: 1873 AGE_LOCK(sc); 1874 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 1875 if ((mask & IFCAP_TXCSUM) != 0 && 1876 (ifp->if_capabilities & IFCAP_TXCSUM) != 0) { 1877 ifp->if_capenable ^= IFCAP_TXCSUM; 1878 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 1879 ifp->if_hwassist |= AGE_CSUM_FEATURES; 1880 else 1881 ifp->if_hwassist &= ~AGE_CSUM_FEATURES; 1882 } 1883 if ((mask & IFCAP_RXCSUM) != 0 && 1884 (ifp->if_capabilities & IFCAP_RXCSUM) != 0) { 1885 ifp->if_capenable ^= IFCAP_RXCSUM; 1886 reg = CSR_READ_4(sc, AGE_MAC_CFG); 1887 reg &= ~MAC_CFG_RXCSUM_ENB; 1888 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 1889 reg |= MAC_CFG_RXCSUM_ENB; 1890 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 1891 } 1892 if ((mask & IFCAP_TSO4) != 0 && 1893 (ifp->if_capabilities & IFCAP_TSO4) != 0) { 1894 ifp->if_capenable ^= IFCAP_TSO4; 1895 if ((ifp->if_capenable & IFCAP_TSO4) != 0) 1896 ifp->if_hwassist |= CSUM_TSO; 1897 else 1898 ifp->if_hwassist &= ~CSUM_TSO; 1899 } 1900 1901 if ((mask & IFCAP_WOL_MCAST) != 0 && 1902 (ifp->if_capabilities & IFCAP_WOL_MCAST) != 0) 1903 ifp->if_capenable ^= IFCAP_WOL_MCAST; 1904 if ((mask & IFCAP_WOL_MAGIC) != 0 && 1905 (ifp->if_capabilities & IFCAP_WOL_MAGIC) != 0) 1906 ifp->if_capenable ^= IFCAP_WOL_MAGIC; 1907 if ((mask & IFCAP_VLAN_HWCSUM) != 0 && 1908 (ifp->if_capabilities & IFCAP_VLAN_HWCSUM) != 0) 1909 ifp->if_capenable ^= IFCAP_VLAN_HWCSUM; 1910 if ((mask & IFCAP_VLAN_HWTSO) != 0 && 1911 (ifp->if_capabilities & IFCAP_VLAN_HWTSO) != 0) 1912 ifp->if_capenable ^= IFCAP_VLAN_HWTSO; 1913 if ((mask & IFCAP_VLAN_HWTAGGING) != 0 && 1914 (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) != 0) { 1915 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 1916 if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) == 0) 1917 ifp->if_capenable &= ~IFCAP_VLAN_HWTSO; 1918 age_rxvlan(sc); 1919 } 1920 AGE_UNLOCK(sc); 1921 VLAN_CAPABILITIES(ifp); 1922 break; 1923 default: 1924 error = ether_ioctl(ifp, cmd, data); 1925 break; 1926 } 1927 1928 return (error); 1929 } 1930 1931 static void 1932 age_mac_config(struct age_softc *sc) 1933 { 1934 struct mii_data *mii; 1935 uint32_t reg; 1936 1937 AGE_LOCK_ASSERT(sc); 1938 1939 mii = device_get_softc(sc->age_miibus); 1940 reg = CSR_READ_4(sc, AGE_MAC_CFG); 1941 reg &= ~MAC_CFG_FULL_DUPLEX; 1942 reg &= ~(MAC_CFG_TX_FC | MAC_CFG_RX_FC); 1943 reg &= ~MAC_CFG_SPEED_MASK; 1944 /* Reprogram MAC with resolved speed/duplex. */ 1945 switch (IFM_SUBTYPE(mii->mii_media_active)) { 1946 case IFM_10_T: 1947 case IFM_100_TX: 1948 reg |= MAC_CFG_SPEED_10_100; 1949 break; 1950 case IFM_1000_T: 1951 reg |= MAC_CFG_SPEED_1000; 1952 break; 1953 } 1954 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) { 1955 reg |= MAC_CFG_FULL_DUPLEX; 1956 #ifdef notyet 1957 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_TXPAUSE) != 0) 1958 reg |= MAC_CFG_TX_FC; 1959 if ((IFM_OPTIONS(mii->mii_media_active) & IFM_ETH_RXPAUSE) != 0) 1960 reg |= MAC_CFG_RX_FC; 1961 #endif 1962 } 1963 1964 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 1965 } 1966 1967 static void 1968 age_link_task(void *arg, int pending) 1969 { 1970 struct age_softc *sc; 1971 struct mii_data *mii; 1972 struct ifnet *ifp; 1973 uint32_t reg; 1974 1975 sc = (struct age_softc *)arg; 1976 1977 AGE_LOCK(sc); 1978 mii = device_get_softc(sc->age_miibus); 1979 ifp = sc->age_ifp; 1980 if (mii == NULL || ifp == NULL || 1981 (ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) { 1982 AGE_UNLOCK(sc); 1983 return; 1984 } 1985 1986 sc->age_flags &= ~AGE_FLAG_LINK; 1987 if ((mii->mii_media_status & IFM_AVALID) != 0) { 1988 switch (IFM_SUBTYPE(mii->mii_media_active)) { 1989 case IFM_10_T: 1990 case IFM_100_TX: 1991 case IFM_1000_T: 1992 sc->age_flags |= AGE_FLAG_LINK; 1993 break; 1994 default: 1995 break; 1996 } 1997 } 1998 1999 /* Stop Rx/Tx MACs. */ 2000 age_stop_rxmac(sc); 2001 age_stop_txmac(sc); 2002 2003 /* Program MACs with resolved speed/duplex/flow-control. */ 2004 if ((sc->age_flags & AGE_FLAG_LINK) != 0) { 2005 age_mac_config(sc); 2006 reg = CSR_READ_4(sc, AGE_MAC_CFG); 2007 /* Restart DMA engine and Tx/Rx MAC. */ 2008 CSR_WRITE_4(sc, AGE_DMA_CFG, CSR_READ_4(sc, AGE_DMA_CFG) | 2009 DMA_CFG_RD_ENB | DMA_CFG_WR_ENB); 2010 reg |= MAC_CFG_TX_ENB | MAC_CFG_RX_ENB; 2011 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2012 } 2013 2014 AGE_UNLOCK(sc); 2015 } 2016 2017 static void 2018 age_stats_update(struct age_softc *sc) 2019 { 2020 struct age_stats *stat; 2021 struct smb *smb; 2022 struct ifnet *ifp; 2023 2024 AGE_LOCK_ASSERT(sc); 2025 2026 stat = &sc->age_stat; 2027 2028 bus_dmamap_sync(sc->age_cdata.age_smb_block_tag, 2029 sc->age_cdata.age_smb_block_map, 2030 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2031 2032 smb = sc->age_rdata.age_smb_block; 2033 if (smb->updated == 0) 2034 return; 2035 2036 ifp = sc->age_ifp; 2037 /* Rx stats. */ 2038 stat->rx_frames += smb->rx_frames; 2039 stat->rx_bcast_frames += smb->rx_bcast_frames; 2040 stat->rx_mcast_frames += smb->rx_mcast_frames; 2041 stat->rx_pause_frames += smb->rx_pause_frames; 2042 stat->rx_control_frames += smb->rx_control_frames; 2043 stat->rx_crcerrs += smb->rx_crcerrs; 2044 stat->rx_lenerrs += smb->rx_lenerrs; 2045 stat->rx_bytes += smb->rx_bytes; 2046 stat->rx_runts += smb->rx_runts; 2047 stat->rx_fragments += smb->rx_fragments; 2048 stat->rx_pkts_64 += smb->rx_pkts_64; 2049 stat->rx_pkts_65_127 += smb->rx_pkts_65_127; 2050 stat->rx_pkts_128_255 += smb->rx_pkts_128_255; 2051 stat->rx_pkts_256_511 += smb->rx_pkts_256_511; 2052 stat->rx_pkts_512_1023 += smb->rx_pkts_512_1023; 2053 stat->rx_pkts_1024_1518 += smb->rx_pkts_1024_1518; 2054 stat->rx_pkts_1519_max += smb->rx_pkts_1519_max; 2055 stat->rx_pkts_truncated += smb->rx_pkts_truncated; 2056 stat->rx_fifo_oflows += smb->rx_fifo_oflows; 2057 stat->rx_desc_oflows += smb->rx_desc_oflows; 2058 stat->rx_alignerrs += smb->rx_alignerrs; 2059 stat->rx_bcast_bytes += smb->rx_bcast_bytes; 2060 stat->rx_mcast_bytes += smb->rx_mcast_bytes; 2061 stat->rx_pkts_filtered += smb->rx_pkts_filtered; 2062 2063 /* Tx stats. */ 2064 stat->tx_frames += smb->tx_frames; 2065 stat->tx_bcast_frames += smb->tx_bcast_frames; 2066 stat->tx_mcast_frames += smb->tx_mcast_frames; 2067 stat->tx_pause_frames += smb->tx_pause_frames; 2068 stat->tx_excess_defer += smb->tx_excess_defer; 2069 stat->tx_control_frames += smb->tx_control_frames; 2070 stat->tx_deferred += smb->tx_deferred; 2071 stat->tx_bytes += smb->tx_bytes; 2072 stat->tx_pkts_64 += smb->tx_pkts_64; 2073 stat->tx_pkts_65_127 += smb->tx_pkts_65_127; 2074 stat->tx_pkts_128_255 += smb->tx_pkts_128_255; 2075 stat->tx_pkts_256_511 += smb->tx_pkts_256_511; 2076 stat->tx_pkts_512_1023 += smb->tx_pkts_512_1023; 2077 stat->tx_pkts_1024_1518 += smb->tx_pkts_1024_1518; 2078 stat->tx_pkts_1519_max += smb->tx_pkts_1519_max; 2079 stat->tx_single_colls += smb->tx_single_colls; 2080 stat->tx_multi_colls += smb->tx_multi_colls; 2081 stat->tx_late_colls += smb->tx_late_colls; 2082 stat->tx_excess_colls += smb->tx_excess_colls; 2083 stat->tx_underrun += smb->tx_underrun; 2084 stat->tx_desc_underrun += smb->tx_desc_underrun; 2085 stat->tx_lenerrs += smb->tx_lenerrs; 2086 stat->tx_pkts_truncated += smb->tx_pkts_truncated; 2087 stat->tx_bcast_bytes += smb->tx_bcast_bytes; 2088 stat->tx_mcast_bytes += smb->tx_mcast_bytes; 2089 2090 /* Update counters in ifnet. */ 2091 if_inc_counter(ifp, IFCOUNTER_OPACKETS, smb->tx_frames); 2092 2093 if_inc_counter(ifp, IFCOUNTER_COLLISIONS, smb->tx_single_colls + 2094 smb->tx_multi_colls + smb->tx_late_colls + 2095 smb->tx_excess_colls * HDPX_CFG_RETRY_DEFAULT); 2096 2097 if_inc_counter(ifp, IFCOUNTER_OERRORS, smb->tx_excess_colls + 2098 smb->tx_late_colls + smb->tx_underrun + 2099 smb->tx_pkts_truncated); 2100 2101 if_inc_counter(ifp, IFCOUNTER_IPACKETS, smb->rx_frames); 2102 2103 if_inc_counter(ifp, IFCOUNTER_IERRORS, smb->rx_crcerrs + 2104 smb->rx_lenerrs + smb->rx_runts + smb->rx_pkts_truncated + 2105 smb->rx_fifo_oflows + smb->rx_desc_oflows + 2106 smb->rx_alignerrs); 2107 2108 /* Update done, clear. */ 2109 smb->updated = 0; 2110 2111 bus_dmamap_sync(sc->age_cdata.age_smb_block_tag, 2112 sc->age_cdata.age_smb_block_map, 2113 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2114 } 2115 2116 static int 2117 age_intr(void *arg) 2118 { 2119 struct age_softc *sc; 2120 uint32_t status; 2121 2122 sc = (struct age_softc *)arg; 2123 2124 status = CSR_READ_4(sc, AGE_INTR_STATUS); 2125 if (status == 0 || (status & AGE_INTRS) == 0) 2126 return (FILTER_STRAY); 2127 /* Disable interrupts. */ 2128 CSR_WRITE_4(sc, AGE_INTR_STATUS, status | INTR_DIS_INT); 2129 taskqueue_enqueue(sc->age_tq, &sc->age_int_task); 2130 2131 return (FILTER_HANDLED); 2132 } 2133 2134 static void 2135 age_int_task(void *arg, int pending) 2136 { 2137 struct age_softc *sc; 2138 struct ifnet *ifp; 2139 struct cmb *cmb; 2140 uint32_t status; 2141 2142 sc = (struct age_softc *)arg; 2143 2144 AGE_LOCK(sc); 2145 2146 bus_dmamap_sync(sc->age_cdata.age_cmb_block_tag, 2147 sc->age_cdata.age_cmb_block_map, 2148 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2149 cmb = sc->age_rdata.age_cmb_block; 2150 status = le32toh(cmb->intr_status); 2151 if (sc->age_morework != 0) 2152 status |= INTR_CMB_RX; 2153 if ((status & AGE_INTRS) == 0) 2154 goto done; 2155 2156 sc->age_tpd_cons = (le32toh(cmb->tpd_cons) & TPD_CONS_MASK) >> 2157 TPD_CONS_SHIFT; 2158 sc->age_rr_prod = (le32toh(cmb->rprod_cons) & RRD_PROD_MASK) >> 2159 RRD_PROD_SHIFT; 2160 /* Let hardware know CMB was served. */ 2161 cmb->intr_status = 0; 2162 bus_dmamap_sync(sc->age_cdata.age_cmb_block_tag, 2163 sc->age_cdata.age_cmb_block_map, 2164 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2165 2166 ifp = sc->age_ifp; 2167 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) { 2168 if ((status & INTR_CMB_RX) != 0) 2169 sc->age_morework = age_rxintr(sc, sc->age_rr_prod, 2170 sc->age_process_limit); 2171 if ((status & INTR_CMB_TX) != 0) 2172 age_txintr(sc, sc->age_tpd_cons); 2173 if ((status & (INTR_DMA_RD_TO_RST | INTR_DMA_WR_TO_RST)) != 0) { 2174 if ((status & INTR_DMA_RD_TO_RST) != 0) 2175 device_printf(sc->age_dev, 2176 "DMA read error! -- resetting\n"); 2177 if ((status & INTR_DMA_WR_TO_RST) != 0) 2178 device_printf(sc->age_dev, 2179 "DMA write error! -- resetting\n"); 2180 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 2181 age_init_locked(sc); 2182 } 2183 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 2184 age_start_locked(ifp); 2185 if ((status & INTR_SMB) != 0) 2186 age_stats_update(sc); 2187 } 2188 2189 /* Check whether CMB was updated while serving Tx/Rx/SMB handler. */ 2190 bus_dmamap_sync(sc->age_cdata.age_cmb_block_tag, 2191 sc->age_cdata.age_cmb_block_map, 2192 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2193 status = le32toh(cmb->intr_status); 2194 if (sc->age_morework != 0 || (status & AGE_INTRS) != 0) { 2195 taskqueue_enqueue(sc->age_tq, &sc->age_int_task); 2196 AGE_UNLOCK(sc); 2197 return; 2198 } 2199 2200 done: 2201 /* Re-enable interrupts. */ 2202 CSR_WRITE_4(sc, AGE_INTR_STATUS, 0); 2203 AGE_UNLOCK(sc); 2204 } 2205 2206 static void 2207 age_txintr(struct age_softc *sc, int tpd_cons) 2208 { 2209 struct ifnet *ifp; 2210 struct age_txdesc *txd; 2211 int cons, prog; 2212 2213 AGE_LOCK_ASSERT(sc); 2214 2215 ifp = sc->age_ifp; 2216 2217 bus_dmamap_sync(sc->age_cdata.age_tx_ring_tag, 2218 sc->age_cdata.age_tx_ring_map, 2219 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2220 2221 /* 2222 * Go through our Tx list and free mbufs for those 2223 * frames which have been transmitted. 2224 */ 2225 cons = sc->age_cdata.age_tx_cons; 2226 for (prog = 0; cons != tpd_cons; AGE_DESC_INC(cons, AGE_TX_RING_CNT)) { 2227 if (sc->age_cdata.age_tx_cnt <= 0) 2228 break; 2229 prog++; 2230 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2231 sc->age_cdata.age_tx_cnt--; 2232 txd = &sc->age_cdata.age_txdesc[cons]; 2233 /* 2234 * Clear Tx descriptors, it's not required but would 2235 * help debugging in case of Tx issues. 2236 */ 2237 txd->tx_desc->addr = 0; 2238 txd->tx_desc->len = 0; 2239 txd->tx_desc->flags = 0; 2240 2241 if (txd->tx_m == NULL) 2242 continue; 2243 /* Reclaim transmitted mbufs. */ 2244 bus_dmamap_sync(sc->age_cdata.age_tx_tag, txd->tx_dmamap, 2245 BUS_DMASYNC_POSTWRITE); 2246 bus_dmamap_unload(sc->age_cdata.age_tx_tag, txd->tx_dmamap); 2247 m_freem(txd->tx_m); 2248 txd->tx_m = NULL; 2249 } 2250 2251 if (prog > 0) { 2252 sc->age_cdata.age_tx_cons = cons; 2253 2254 /* 2255 * Unarm watchdog timer only when there are no pending 2256 * Tx descriptors in queue. 2257 */ 2258 if (sc->age_cdata.age_tx_cnt == 0) 2259 sc->age_watchdog_timer = 0; 2260 bus_dmamap_sync(sc->age_cdata.age_tx_ring_tag, 2261 sc->age_cdata.age_tx_ring_map, 2262 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2263 } 2264 } 2265 2266 #ifndef __NO_STRICT_ALIGNMENT 2267 static struct mbuf * 2268 age_fixup_rx(struct ifnet *ifp, struct mbuf *m) 2269 { 2270 struct mbuf *n; 2271 int i; 2272 uint16_t *src, *dst; 2273 2274 src = mtod(m, uint16_t *); 2275 dst = src - 3; 2276 2277 if (m->m_next == NULL) { 2278 for (i = 0; i < (m->m_len / sizeof(uint16_t) + 1); i++) 2279 *dst++ = *src++; 2280 m->m_data -= 6; 2281 return (m); 2282 } 2283 /* 2284 * Append a new mbuf to received mbuf chain and copy ethernet 2285 * header from the mbuf chain. This can save lots of CPU 2286 * cycles for jumbo frame. 2287 */ 2288 MGETHDR(n, M_NOWAIT, MT_DATA); 2289 if (n == NULL) { 2290 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2291 m_freem(m); 2292 return (NULL); 2293 } 2294 bcopy(m->m_data, n->m_data, ETHER_HDR_LEN); 2295 m->m_data += ETHER_HDR_LEN; 2296 m->m_len -= ETHER_HDR_LEN; 2297 n->m_len = ETHER_HDR_LEN; 2298 M_MOVE_PKTHDR(n, m); 2299 n->m_next = m; 2300 return (n); 2301 } 2302 #endif 2303 2304 /* Receive a frame. */ 2305 static void 2306 age_rxeof(struct age_softc *sc, struct rx_rdesc *rxrd) 2307 { 2308 struct age_rxdesc *rxd; 2309 struct ifnet *ifp; 2310 struct mbuf *mp, *m; 2311 uint32_t status, index, vtag; 2312 int count, nsegs; 2313 int rx_cons; 2314 2315 AGE_LOCK_ASSERT(sc); 2316 2317 ifp = sc->age_ifp; 2318 status = le32toh(rxrd->flags); 2319 index = le32toh(rxrd->index); 2320 rx_cons = AGE_RX_CONS(index); 2321 nsegs = AGE_RX_NSEGS(index); 2322 2323 sc->age_cdata.age_rxlen = AGE_RX_BYTES(le32toh(rxrd->len)); 2324 if ((status & (AGE_RRD_ERROR | AGE_RRD_LENGTH_NOK)) != 0) { 2325 /* 2326 * We want to pass the following frames to upper 2327 * layer regardless of error status of Rx return 2328 * ring. 2329 * 2330 * o IP/TCP/UDP checksum is bad. 2331 * o frame length and protocol specific length 2332 * does not match. 2333 */ 2334 status |= AGE_RRD_IPCSUM_NOK | AGE_RRD_TCP_UDPCSUM_NOK; 2335 if ((status & (AGE_RRD_CRC | AGE_RRD_CODE | AGE_RRD_DRIBBLE | 2336 AGE_RRD_RUNT | AGE_RRD_OFLOW | AGE_RRD_TRUNC)) != 0) 2337 return; 2338 } 2339 2340 for (count = 0; count < nsegs; count++, 2341 AGE_DESC_INC(rx_cons, AGE_RX_RING_CNT)) { 2342 rxd = &sc->age_cdata.age_rxdesc[rx_cons]; 2343 mp = rxd->rx_m; 2344 /* Add a new receive buffer to the ring. */ 2345 if (age_newbuf(sc, rxd) != 0) { 2346 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2347 /* Reuse Rx buffers. */ 2348 if (sc->age_cdata.age_rxhead != NULL) 2349 m_freem(sc->age_cdata.age_rxhead); 2350 break; 2351 } 2352 2353 /* 2354 * Assume we've received a full sized frame. 2355 * Actual size is fixed when we encounter the end of 2356 * multi-segmented frame. 2357 */ 2358 mp->m_len = AGE_RX_BUF_SIZE; 2359 2360 /* Chain received mbufs. */ 2361 if (sc->age_cdata.age_rxhead == NULL) { 2362 sc->age_cdata.age_rxhead = mp; 2363 sc->age_cdata.age_rxtail = mp; 2364 } else { 2365 mp->m_flags &= ~M_PKTHDR; 2366 sc->age_cdata.age_rxprev_tail = 2367 sc->age_cdata.age_rxtail; 2368 sc->age_cdata.age_rxtail->m_next = mp; 2369 sc->age_cdata.age_rxtail = mp; 2370 } 2371 2372 if (count == nsegs - 1) { 2373 /* Last desc. for this frame. */ 2374 m = sc->age_cdata.age_rxhead; 2375 m->m_flags |= M_PKTHDR; 2376 /* 2377 * It seems that L1 controller has no way 2378 * to tell hardware to strip CRC bytes. 2379 */ 2380 m->m_pkthdr.len = sc->age_cdata.age_rxlen - 2381 ETHER_CRC_LEN; 2382 if (nsegs > 1) { 2383 /* Set last mbuf size. */ 2384 mp->m_len = sc->age_cdata.age_rxlen - 2385 ((nsegs - 1) * AGE_RX_BUF_SIZE); 2386 /* Remove the CRC bytes in chained mbufs. */ 2387 if (mp->m_len <= ETHER_CRC_LEN) { 2388 sc->age_cdata.age_rxtail = 2389 sc->age_cdata.age_rxprev_tail; 2390 sc->age_cdata.age_rxtail->m_len -= 2391 (ETHER_CRC_LEN - mp->m_len); 2392 sc->age_cdata.age_rxtail->m_next = NULL; 2393 m_freem(mp); 2394 } else { 2395 mp->m_len -= ETHER_CRC_LEN; 2396 } 2397 } else 2398 m->m_len = m->m_pkthdr.len; 2399 m->m_pkthdr.rcvif = ifp; 2400 /* 2401 * Set checksum information. 2402 * It seems that L1 controller can compute partial 2403 * checksum. The partial checksum value can be used 2404 * to accelerate checksum computation for fragmented 2405 * TCP/UDP packets. Upper network stack already 2406 * takes advantage of the partial checksum value in 2407 * IP reassembly stage. But I'm not sure the 2408 * correctness of the partial hardware checksum 2409 * assistance due to lack of data sheet. If it is 2410 * proven to work on L1 I'll enable it. 2411 */ 2412 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0 && 2413 (status & AGE_RRD_IPV4) != 0) { 2414 if ((status & AGE_RRD_IPCSUM_NOK) == 0) 2415 m->m_pkthdr.csum_flags |= 2416 CSUM_IP_CHECKED | CSUM_IP_VALID; 2417 if ((status & (AGE_RRD_TCP | AGE_RRD_UDP)) && 2418 (status & AGE_RRD_TCP_UDPCSUM_NOK) == 0) { 2419 m->m_pkthdr.csum_flags |= 2420 CSUM_DATA_VALID | CSUM_PSEUDO_HDR; 2421 m->m_pkthdr.csum_data = 0xffff; 2422 } 2423 /* 2424 * Don't mark bad checksum for TCP/UDP frames 2425 * as fragmented frames may always have set 2426 * bad checksummed bit of descriptor status. 2427 */ 2428 } 2429 2430 /* Check for VLAN tagged frames. */ 2431 if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0 && 2432 (status & AGE_RRD_VLAN) != 0) { 2433 vtag = AGE_RX_VLAN(le32toh(rxrd->vtags)); 2434 m->m_pkthdr.ether_vtag = AGE_RX_VLAN_TAG(vtag); 2435 m->m_flags |= M_VLANTAG; 2436 } 2437 #ifndef __NO_STRICT_ALIGNMENT 2438 m = age_fixup_rx(ifp, m); 2439 if (m != NULL) 2440 #endif 2441 { 2442 /* Pass it on. */ 2443 AGE_UNLOCK(sc); 2444 (*ifp->if_input)(ifp, m); 2445 AGE_LOCK(sc); 2446 } 2447 } 2448 } 2449 2450 /* Reset mbuf chains. */ 2451 AGE_RXCHAIN_RESET(sc); 2452 } 2453 2454 static int 2455 age_rxintr(struct age_softc *sc, int rr_prod, int count) 2456 { 2457 struct rx_rdesc *rxrd; 2458 int rr_cons, nsegs, pktlen, prog; 2459 2460 AGE_LOCK_ASSERT(sc); 2461 2462 rr_cons = sc->age_cdata.age_rr_cons; 2463 if (rr_cons == rr_prod) 2464 return (0); 2465 2466 bus_dmamap_sync(sc->age_cdata.age_rr_ring_tag, 2467 sc->age_cdata.age_rr_ring_map, 2468 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE); 2469 bus_dmamap_sync(sc->age_cdata.age_rx_ring_tag, 2470 sc->age_cdata.age_rx_ring_map, BUS_DMASYNC_POSTWRITE); 2471 2472 for (prog = 0; rr_cons != rr_prod; prog++) { 2473 if (count-- <= 0) 2474 break; 2475 rxrd = &sc->age_rdata.age_rr_ring[rr_cons]; 2476 nsegs = AGE_RX_NSEGS(le32toh(rxrd->index)); 2477 if (nsegs == 0) 2478 break; 2479 /* 2480 * Check number of segments against received bytes. 2481 * Non-matching value would indicate that hardware 2482 * is still trying to update Rx return descriptors. 2483 * I'm not sure whether this check is really needed. 2484 */ 2485 pktlen = AGE_RX_BYTES(le32toh(rxrd->len)); 2486 if (nsegs != howmany(pktlen, AGE_RX_BUF_SIZE)) 2487 break; 2488 2489 /* Received a frame. */ 2490 age_rxeof(sc, rxrd); 2491 /* Clear return ring. */ 2492 rxrd->index = 0; 2493 AGE_DESC_INC(rr_cons, AGE_RR_RING_CNT); 2494 sc->age_cdata.age_rx_cons += nsegs; 2495 sc->age_cdata.age_rx_cons %= AGE_RX_RING_CNT; 2496 } 2497 2498 if (prog > 0) { 2499 /* Update the consumer index. */ 2500 sc->age_cdata.age_rr_cons = rr_cons; 2501 2502 bus_dmamap_sync(sc->age_cdata.age_rx_ring_tag, 2503 sc->age_cdata.age_rx_ring_map, BUS_DMASYNC_PREWRITE); 2504 /* Sync descriptors. */ 2505 bus_dmamap_sync(sc->age_cdata.age_rr_ring_tag, 2506 sc->age_cdata.age_rr_ring_map, 2507 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2508 2509 /* Notify hardware availability of new Rx buffers. */ 2510 AGE_COMMIT_MBOX(sc); 2511 } 2512 2513 return (count > 0 ? 0 : EAGAIN); 2514 } 2515 2516 static void 2517 age_tick(void *arg) 2518 { 2519 struct age_softc *sc; 2520 struct mii_data *mii; 2521 2522 sc = (struct age_softc *)arg; 2523 2524 AGE_LOCK_ASSERT(sc); 2525 2526 mii = device_get_softc(sc->age_miibus); 2527 mii_tick(mii); 2528 age_watchdog(sc); 2529 callout_reset(&sc->age_tick_ch, hz, age_tick, sc); 2530 } 2531 2532 static void 2533 age_reset(struct age_softc *sc) 2534 { 2535 uint32_t reg; 2536 int i; 2537 2538 CSR_WRITE_4(sc, AGE_MASTER_CFG, MASTER_RESET); 2539 CSR_READ_4(sc, AGE_MASTER_CFG); 2540 DELAY(1000); 2541 for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 2542 if ((reg = CSR_READ_4(sc, AGE_IDLE_STATUS)) == 0) 2543 break; 2544 DELAY(10); 2545 } 2546 2547 if (i == 0) 2548 device_printf(sc->age_dev, "reset timeout(0x%08x)!\n", reg); 2549 /* Initialize PCIe module. From Linux. */ 2550 CSR_WRITE_4(sc, 0x12FC, 0x6500); 2551 CSR_WRITE_4(sc, 0x1008, CSR_READ_4(sc, 0x1008) | 0x8000); 2552 } 2553 2554 static void 2555 age_init(void *xsc) 2556 { 2557 struct age_softc *sc; 2558 2559 sc = (struct age_softc *)xsc; 2560 AGE_LOCK(sc); 2561 age_init_locked(sc); 2562 AGE_UNLOCK(sc); 2563 } 2564 2565 static void 2566 age_init_locked(struct age_softc *sc) 2567 { 2568 struct ifnet *ifp; 2569 struct mii_data *mii; 2570 uint8_t eaddr[ETHER_ADDR_LEN]; 2571 bus_addr_t paddr; 2572 uint32_t reg, fsize; 2573 uint32_t rxf_hi, rxf_lo, rrd_hi, rrd_lo; 2574 int error; 2575 2576 AGE_LOCK_ASSERT(sc); 2577 2578 ifp = sc->age_ifp; 2579 mii = device_get_softc(sc->age_miibus); 2580 2581 if ((ifp->if_drv_flags & IFF_DRV_RUNNING) != 0) 2582 return; 2583 2584 /* 2585 * Cancel any pending I/O. 2586 */ 2587 age_stop(sc); 2588 2589 /* 2590 * Reset the chip to a known state. 2591 */ 2592 age_reset(sc); 2593 2594 /* Initialize descriptors. */ 2595 error = age_init_rx_ring(sc); 2596 if (error != 0) { 2597 device_printf(sc->age_dev, "no memory for Rx buffers.\n"); 2598 age_stop(sc); 2599 return; 2600 } 2601 age_init_rr_ring(sc); 2602 age_init_tx_ring(sc); 2603 age_init_cmb_block(sc); 2604 age_init_smb_block(sc); 2605 2606 /* Reprogram the station address. */ 2607 bcopy(IF_LLADDR(ifp), eaddr, ETHER_ADDR_LEN); 2608 CSR_WRITE_4(sc, AGE_PAR0, 2609 eaddr[2] << 24 | eaddr[3] << 16 | eaddr[4] << 8 | eaddr[5]); 2610 CSR_WRITE_4(sc, AGE_PAR1, eaddr[0] << 8 | eaddr[1]); 2611 2612 /* Set descriptor base addresses. */ 2613 paddr = sc->age_rdata.age_tx_ring_paddr; 2614 CSR_WRITE_4(sc, AGE_DESC_ADDR_HI, AGE_ADDR_HI(paddr)); 2615 paddr = sc->age_rdata.age_rx_ring_paddr; 2616 CSR_WRITE_4(sc, AGE_DESC_RD_ADDR_LO, AGE_ADDR_LO(paddr)); 2617 paddr = sc->age_rdata.age_rr_ring_paddr; 2618 CSR_WRITE_4(sc, AGE_DESC_RRD_ADDR_LO, AGE_ADDR_LO(paddr)); 2619 paddr = sc->age_rdata.age_tx_ring_paddr; 2620 CSR_WRITE_4(sc, AGE_DESC_TPD_ADDR_LO, AGE_ADDR_LO(paddr)); 2621 paddr = sc->age_rdata.age_cmb_block_paddr; 2622 CSR_WRITE_4(sc, AGE_DESC_CMB_ADDR_LO, AGE_ADDR_LO(paddr)); 2623 paddr = sc->age_rdata.age_smb_block_paddr; 2624 CSR_WRITE_4(sc, AGE_DESC_SMB_ADDR_LO, AGE_ADDR_LO(paddr)); 2625 /* Set Rx/Rx return descriptor counter. */ 2626 CSR_WRITE_4(sc, AGE_DESC_RRD_RD_CNT, 2627 ((AGE_RR_RING_CNT << DESC_RRD_CNT_SHIFT) & 2628 DESC_RRD_CNT_MASK) | 2629 ((AGE_RX_RING_CNT << DESC_RD_CNT_SHIFT) & DESC_RD_CNT_MASK)); 2630 /* Set Tx descriptor counter. */ 2631 CSR_WRITE_4(sc, AGE_DESC_TPD_CNT, 2632 (AGE_TX_RING_CNT << DESC_TPD_CNT_SHIFT) & DESC_TPD_CNT_MASK); 2633 2634 /* Tell hardware that we're ready to load descriptors. */ 2635 CSR_WRITE_4(sc, AGE_DMA_BLOCK, DMA_BLOCK_LOAD); 2636 2637 /* 2638 * Initialize mailbox register. 2639 * Updated producer/consumer index information is exchanged 2640 * through this mailbox register. However Tx producer and 2641 * Rx return consumer/Rx producer are all shared such that 2642 * it's hard to separate code path between Tx and Rx without 2643 * locking. If L1 hardware have a separate mail box register 2644 * for Tx and Rx consumer/producer management we could have 2645 * indepent Tx/Rx handler which in turn Rx handler could have 2646 * been run without any locking. 2647 */ 2648 AGE_COMMIT_MBOX(sc); 2649 2650 /* Configure IPG/IFG parameters. */ 2651 CSR_WRITE_4(sc, AGE_IPG_IFG_CFG, 2652 ((IPG_IFG_IPG2_DEFAULT << IPG_IFG_IPG2_SHIFT) & IPG_IFG_IPG2_MASK) | 2653 ((IPG_IFG_IPG1_DEFAULT << IPG_IFG_IPG1_SHIFT) & IPG_IFG_IPG1_MASK) | 2654 ((IPG_IFG_MIFG_DEFAULT << IPG_IFG_MIFG_SHIFT) & IPG_IFG_MIFG_MASK) | 2655 ((IPG_IFG_IPGT_DEFAULT << IPG_IFG_IPGT_SHIFT) & IPG_IFG_IPGT_MASK)); 2656 2657 /* Set parameters for half-duplex media. */ 2658 CSR_WRITE_4(sc, AGE_HDPX_CFG, 2659 ((HDPX_CFG_LCOL_DEFAULT << HDPX_CFG_LCOL_SHIFT) & 2660 HDPX_CFG_LCOL_MASK) | 2661 ((HDPX_CFG_RETRY_DEFAULT << HDPX_CFG_RETRY_SHIFT) & 2662 HDPX_CFG_RETRY_MASK) | HDPX_CFG_EXC_DEF_EN | 2663 ((HDPX_CFG_ABEBT_DEFAULT << HDPX_CFG_ABEBT_SHIFT) & 2664 HDPX_CFG_ABEBT_MASK) | 2665 ((HDPX_CFG_JAMIPG_DEFAULT << HDPX_CFG_JAMIPG_SHIFT) & 2666 HDPX_CFG_JAMIPG_MASK)); 2667 2668 /* Configure interrupt moderation timer. */ 2669 CSR_WRITE_2(sc, AGE_IM_TIMER, AGE_USECS(sc->age_int_mod)); 2670 reg = CSR_READ_4(sc, AGE_MASTER_CFG); 2671 reg &= ~MASTER_MTIMER_ENB; 2672 if (AGE_USECS(sc->age_int_mod) == 0) 2673 reg &= ~MASTER_ITIMER_ENB; 2674 else 2675 reg |= MASTER_ITIMER_ENB; 2676 CSR_WRITE_4(sc, AGE_MASTER_CFG, reg); 2677 if (bootverbose) 2678 device_printf(sc->age_dev, "interrupt moderation is %d us.\n", 2679 sc->age_int_mod); 2680 CSR_WRITE_2(sc, AGE_INTR_CLR_TIMER, AGE_USECS(1000)); 2681 2682 /* Set Maximum frame size but don't let MTU be lass than ETHER_MTU. */ 2683 if (ifp->if_mtu < ETHERMTU) 2684 sc->age_max_frame_size = ETHERMTU; 2685 else 2686 sc->age_max_frame_size = ifp->if_mtu; 2687 sc->age_max_frame_size += ETHER_HDR_LEN + 2688 sizeof(struct ether_vlan_header) + ETHER_CRC_LEN; 2689 CSR_WRITE_4(sc, AGE_FRAME_SIZE, sc->age_max_frame_size); 2690 /* Configure jumbo frame. */ 2691 fsize = roundup(sc->age_max_frame_size, sizeof(uint64_t)); 2692 CSR_WRITE_4(sc, AGE_RXQ_JUMBO_CFG, 2693 (((fsize / sizeof(uint64_t)) << 2694 RXQ_JUMBO_CFG_SZ_THRESH_SHIFT) & RXQ_JUMBO_CFG_SZ_THRESH_MASK) | 2695 ((RXQ_JUMBO_CFG_LKAH_DEFAULT << 2696 RXQ_JUMBO_CFG_LKAH_SHIFT) & RXQ_JUMBO_CFG_LKAH_MASK) | 2697 ((AGE_USECS(8) << RXQ_JUMBO_CFG_RRD_TIMER_SHIFT) & 2698 RXQ_JUMBO_CFG_RRD_TIMER_MASK)); 2699 2700 /* Configure flow-control parameters. From Linux. */ 2701 if ((sc->age_flags & AGE_FLAG_PCIE) != 0) { 2702 /* 2703 * Magic workaround for old-L1. 2704 * Don't know which hw revision requires this magic. 2705 */ 2706 CSR_WRITE_4(sc, 0x12FC, 0x6500); 2707 /* 2708 * Another magic workaround for flow-control mode 2709 * change. From Linux. 2710 */ 2711 CSR_WRITE_4(sc, 0x1008, CSR_READ_4(sc, 0x1008) | 0x8000); 2712 } 2713 /* 2714 * TODO 2715 * Should understand pause parameter relationships between FIFO 2716 * size and number of Rx descriptors and Rx return descriptors. 2717 * 2718 * Magic parameters came from Linux. 2719 */ 2720 switch (sc->age_chip_rev) { 2721 case 0x8001: 2722 case 0x9001: 2723 case 0x9002: 2724 case 0x9003: 2725 rxf_hi = AGE_RX_RING_CNT / 16; 2726 rxf_lo = (AGE_RX_RING_CNT * 7) / 8; 2727 rrd_hi = (AGE_RR_RING_CNT * 7) / 8; 2728 rrd_lo = AGE_RR_RING_CNT / 16; 2729 break; 2730 default: 2731 reg = CSR_READ_4(sc, AGE_SRAM_RX_FIFO_LEN); 2732 rxf_lo = reg / 16; 2733 if (rxf_lo < 192) 2734 rxf_lo = 192; 2735 rxf_hi = (reg * 7) / 8; 2736 if (rxf_hi < rxf_lo) 2737 rxf_hi = rxf_lo + 16; 2738 reg = CSR_READ_4(sc, AGE_SRAM_RRD_LEN); 2739 rrd_lo = reg / 8; 2740 rrd_hi = (reg * 7) / 8; 2741 if (rrd_lo < 2) 2742 rrd_lo = 2; 2743 if (rrd_hi < rrd_lo) 2744 rrd_hi = rrd_lo + 3; 2745 break; 2746 } 2747 CSR_WRITE_4(sc, AGE_RXQ_FIFO_PAUSE_THRESH, 2748 ((rxf_lo << RXQ_FIFO_PAUSE_THRESH_LO_SHIFT) & 2749 RXQ_FIFO_PAUSE_THRESH_LO_MASK) | 2750 ((rxf_hi << RXQ_FIFO_PAUSE_THRESH_HI_SHIFT) & 2751 RXQ_FIFO_PAUSE_THRESH_HI_MASK)); 2752 CSR_WRITE_4(sc, AGE_RXQ_RRD_PAUSE_THRESH, 2753 ((rrd_lo << RXQ_RRD_PAUSE_THRESH_LO_SHIFT) & 2754 RXQ_RRD_PAUSE_THRESH_LO_MASK) | 2755 ((rrd_hi << RXQ_RRD_PAUSE_THRESH_HI_SHIFT) & 2756 RXQ_RRD_PAUSE_THRESH_HI_MASK)); 2757 2758 /* Configure RxQ. */ 2759 CSR_WRITE_4(sc, AGE_RXQ_CFG, 2760 ((RXQ_CFG_RD_BURST_DEFAULT << RXQ_CFG_RD_BURST_SHIFT) & 2761 RXQ_CFG_RD_BURST_MASK) | 2762 ((RXQ_CFG_RRD_BURST_THRESH_DEFAULT << 2763 RXQ_CFG_RRD_BURST_THRESH_SHIFT) & RXQ_CFG_RRD_BURST_THRESH_MASK) | 2764 ((RXQ_CFG_RD_PREF_MIN_IPG_DEFAULT << 2765 RXQ_CFG_RD_PREF_MIN_IPG_SHIFT) & RXQ_CFG_RD_PREF_MIN_IPG_MASK) | 2766 RXQ_CFG_CUT_THROUGH_ENB | RXQ_CFG_ENB); 2767 2768 /* Configure TxQ. */ 2769 CSR_WRITE_4(sc, AGE_TXQ_CFG, 2770 ((TXQ_CFG_TPD_BURST_DEFAULT << TXQ_CFG_TPD_BURST_SHIFT) & 2771 TXQ_CFG_TPD_BURST_MASK) | 2772 ((TXQ_CFG_TX_FIFO_BURST_DEFAULT << TXQ_CFG_TX_FIFO_BURST_SHIFT) & 2773 TXQ_CFG_TX_FIFO_BURST_MASK) | 2774 ((TXQ_CFG_TPD_FETCH_DEFAULT << 2775 TXQ_CFG_TPD_FETCH_THRESH_SHIFT) & TXQ_CFG_TPD_FETCH_THRESH_MASK) | 2776 TXQ_CFG_ENB); 2777 2778 CSR_WRITE_4(sc, AGE_TX_JUMBO_TPD_TH_IPG, 2779 (((fsize / sizeof(uint64_t) << TX_JUMBO_TPD_TH_SHIFT)) & 2780 TX_JUMBO_TPD_TH_MASK) | 2781 ((TX_JUMBO_TPD_IPG_DEFAULT << TX_JUMBO_TPD_IPG_SHIFT) & 2782 TX_JUMBO_TPD_IPG_MASK)); 2783 /* Configure DMA parameters. */ 2784 CSR_WRITE_4(sc, AGE_DMA_CFG, 2785 DMA_CFG_ENH_ORDER | DMA_CFG_RCB_64 | 2786 sc->age_dma_rd_burst | DMA_CFG_RD_ENB | 2787 sc->age_dma_wr_burst | DMA_CFG_WR_ENB); 2788 2789 /* Configure CMB DMA write threshold. */ 2790 CSR_WRITE_4(sc, AGE_CMB_WR_THRESH, 2791 ((CMB_WR_THRESH_RRD_DEFAULT << CMB_WR_THRESH_RRD_SHIFT) & 2792 CMB_WR_THRESH_RRD_MASK) | 2793 ((CMB_WR_THRESH_TPD_DEFAULT << CMB_WR_THRESH_TPD_SHIFT) & 2794 CMB_WR_THRESH_TPD_MASK)); 2795 2796 /* Set CMB/SMB timer and enable them. */ 2797 CSR_WRITE_4(sc, AGE_CMB_WR_TIMER, 2798 ((AGE_USECS(2) << CMB_WR_TIMER_TX_SHIFT) & CMB_WR_TIMER_TX_MASK) | 2799 ((AGE_USECS(2) << CMB_WR_TIMER_RX_SHIFT) & CMB_WR_TIMER_RX_MASK)); 2800 /* Request SMB updates for every seconds. */ 2801 CSR_WRITE_4(sc, AGE_SMB_TIMER, AGE_USECS(1000 * 1000)); 2802 CSR_WRITE_4(sc, AGE_CSMB_CTRL, CSMB_CTRL_SMB_ENB | CSMB_CTRL_CMB_ENB); 2803 2804 /* 2805 * Disable all WOL bits as WOL can interfere normal Rx 2806 * operation. 2807 */ 2808 CSR_WRITE_4(sc, AGE_WOL_CFG, 0); 2809 2810 /* 2811 * Configure Tx/Rx MACs. 2812 * - Auto-padding for short frames. 2813 * - Enable CRC generation. 2814 * Start with full-duplex/1000Mbps media. Actual reconfiguration 2815 * of MAC is followed after link establishment. 2816 */ 2817 CSR_WRITE_4(sc, AGE_MAC_CFG, 2818 MAC_CFG_TX_CRC_ENB | MAC_CFG_TX_AUTO_PAD | 2819 MAC_CFG_FULL_DUPLEX | MAC_CFG_SPEED_1000 | 2820 ((MAC_CFG_PREAMBLE_DEFAULT << MAC_CFG_PREAMBLE_SHIFT) & 2821 MAC_CFG_PREAMBLE_MASK)); 2822 /* Set up the receive filter. */ 2823 age_rxfilter(sc); 2824 age_rxvlan(sc); 2825 2826 reg = CSR_READ_4(sc, AGE_MAC_CFG); 2827 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 2828 reg |= MAC_CFG_RXCSUM_ENB; 2829 2830 /* Ack all pending interrupts and clear it. */ 2831 CSR_WRITE_4(sc, AGE_INTR_STATUS, 0); 2832 CSR_WRITE_4(sc, AGE_INTR_MASK, AGE_INTRS); 2833 2834 /* Finally enable Tx/Rx MAC. */ 2835 CSR_WRITE_4(sc, AGE_MAC_CFG, reg | MAC_CFG_TX_ENB | MAC_CFG_RX_ENB); 2836 2837 sc->age_flags &= ~AGE_FLAG_LINK; 2838 /* Switch to the current media. */ 2839 mii_mediachg(mii); 2840 2841 callout_reset(&sc->age_tick_ch, hz, age_tick, sc); 2842 2843 ifp->if_drv_flags |= IFF_DRV_RUNNING; 2844 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2845 } 2846 2847 static void 2848 age_stop(struct age_softc *sc) 2849 { 2850 struct ifnet *ifp; 2851 struct age_txdesc *txd; 2852 struct age_rxdesc *rxd; 2853 uint32_t reg; 2854 int i; 2855 2856 AGE_LOCK_ASSERT(sc); 2857 /* 2858 * Mark the interface down and cancel the watchdog timer. 2859 */ 2860 ifp = sc->age_ifp; 2861 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 2862 sc->age_flags &= ~AGE_FLAG_LINK; 2863 callout_stop(&sc->age_tick_ch); 2864 sc->age_watchdog_timer = 0; 2865 2866 /* 2867 * Disable interrupts. 2868 */ 2869 CSR_WRITE_4(sc, AGE_INTR_MASK, 0); 2870 CSR_WRITE_4(sc, AGE_INTR_STATUS, 0xFFFFFFFF); 2871 /* Stop CMB/SMB updates. */ 2872 CSR_WRITE_4(sc, AGE_CSMB_CTRL, 0); 2873 /* Stop Rx/Tx MAC. */ 2874 age_stop_rxmac(sc); 2875 age_stop_txmac(sc); 2876 /* Stop DMA. */ 2877 CSR_WRITE_4(sc, AGE_DMA_CFG, 2878 CSR_READ_4(sc, AGE_DMA_CFG) & ~(DMA_CFG_RD_ENB | DMA_CFG_WR_ENB)); 2879 /* Stop TxQ/RxQ. */ 2880 CSR_WRITE_4(sc, AGE_TXQ_CFG, 2881 CSR_READ_4(sc, AGE_TXQ_CFG) & ~TXQ_CFG_ENB); 2882 CSR_WRITE_4(sc, AGE_RXQ_CFG, 2883 CSR_READ_4(sc, AGE_RXQ_CFG) & ~RXQ_CFG_ENB); 2884 for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 2885 if ((reg = CSR_READ_4(sc, AGE_IDLE_STATUS)) == 0) 2886 break; 2887 DELAY(10); 2888 } 2889 if (i == 0) 2890 device_printf(sc->age_dev, 2891 "stopping Rx/Tx MACs timed out(0x%08x)!\n", reg); 2892 2893 /* Reclaim Rx buffers that have been processed. */ 2894 if (sc->age_cdata.age_rxhead != NULL) 2895 m_freem(sc->age_cdata.age_rxhead); 2896 AGE_RXCHAIN_RESET(sc); 2897 /* 2898 * Free RX and TX mbufs still in the queues. 2899 */ 2900 for (i = 0; i < AGE_RX_RING_CNT; i++) { 2901 rxd = &sc->age_cdata.age_rxdesc[i]; 2902 if (rxd->rx_m != NULL) { 2903 bus_dmamap_sync(sc->age_cdata.age_rx_tag, 2904 rxd->rx_dmamap, BUS_DMASYNC_POSTREAD); 2905 bus_dmamap_unload(sc->age_cdata.age_rx_tag, 2906 rxd->rx_dmamap); 2907 m_freem(rxd->rx_m); 2908 rxd->rx_m = NULL; 2909 } 2910 } 2911 for (i = 0; i < AGE_TX_RING_CNT; i++) { 2912 txd = &sc->age_cdata.age_txdesc[i]; 2913 if (txd->tx_m != NULL) { 2914 bus_dmamap_sync(sc->age_cdata.age_tx_tag, 2915 txd->tx_dmamap, BUS_DMASYNC_POSTWRITE); 2916 bus_dmamap_unload(sc->age_cdata.age_tx_tag, 2917 txd->tx_dmamap); 2918 m_freem(txd->tx_m); 2919 txd->tx_m = NULL; 2920 } 2921 } 2922 } 2923 2924 static void 2925 age_stop_txmac(struct age_softc *sc) 2926 { 2927 uint32_t reg; 2928 int i; 2929 2930 AGE_LOCK_ASSERT(sc); 2931 2932 reg = CSR_READ_4(sc, AGE_MAC_CFG); 2933 if ((reg & MAC_CFG_TX_ENB) != 0) { 2934 reg &= ~MAC_CFG_TX_ENB; 2935 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2936 } 2937 /* Stop Tx DMA engine. */ 2938 reg = CSR_READ_4(sc, AGE_DMA_CFG); 2939 if ((reg & DMA_CFG_RD_ENB) != 0) { 2940 reg &= ~DMA_CFG_RD_ENB; 2941 CSR_WRITE_4(sc, AGE_DMA_CFG, reg); 2942 } 2943 for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 2944 if ((CSR_READ_4(sc, AGE_IDLE_STATUS) & 2945 (IDLE_STATUS_TXMAC | IDLE_STATUS_DMARD)) == 0) 2946 break; 2947 DELAY(10); 2948 } 2949 if (i == 0) 2950 device_printf(sc->age_dev, "stopping TxMAC timeout!\n"); 2951 } 2952 2953 static void 2954 age_stop_rxmac(struct age_softc *sc) 2955 { 2956 uint32_t reg; 2957 int i; 2958 2959 AGE_LOCK_ASSERT(sc); 2960 2961 reg = CSR_READ_4(sc, AGE_MAC_CFG); 2962 if ((reg & MAC_CFG_RX_ENB) != 0) { 2963 reg &= ~MAC_CFG_RX_ENB; 2964 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 2965 } 2966 /* Stop Rx DMA engine. */ 2967 reg = CSR_READ_4(sc, AGE_DMA_CFG); 2968 if ((reg & DMA_CFG_WR_ENB) != 0) { 2969 reg &= ~DMA_CFG_WR_ENB; 2970 CSR_WRITE_4(sc, AGE_DMA_CFG, reg); 2971 } 2972 for (i = AGE_RESET_TIMEOUT; i > 0; i--) { 2973 if ((CSR_READ_4(sc, AGE_IDLE_STATUS) & 2974 (IDLE_STATUS_RXMAC | IDLE_STATUS_DMAWR)) == 0) 2975 break; 2976 DELAY(10); 2977 } 2978 if (i == 0) 2979 device_printf(sc->age_dev, "stopping RxMAC timeout!\n"); 2980 } 2981 2982 static void 2983 age_init_tx_ring(struct age_softc *sc) 2984 { 2985 struct age_ring_data *rd; 2986 struct age_txdesc *txd; 2987 int i; 2988 2989 AGE_LOCK_ASSERT(sc); 2990 2991 sc->age_cdata.age_tx_prod = 0; 2992 sc->age_cdata.age_tx_cons = 0; 2993 sc->age_cdata.age_tx_cnt = 0; 2994 2995 rd = &sc->age_rdata; 2996 bzero(rd->age_tx_ring, AGE_TX_RING_SZ); 2997 for (i = 0; i < AGE_TX_RING_CNT; i++) { 2998 txd = &sc->age_cdata.age_txdesc[i]; 2999 txd->tx_desc = &rd->age_tx_ring[i]; 3000 txd->tx_m = NULL; 3001 } 3002 3003 bus_dmamap_sync(sc->age_cdata.age_tx_ring_tag, 3004 sc->age_cdata.age_tx_ring_map, 3005 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 3006 } 3007 3008 static int 3009 age_init_rx_ring(struct age_softc *sc) 3010 { 3011 struct age_ring_data *rd; 3012 struct age_rxdesc *rxd; 3013 int i; 3014 3015 AGE_LOCK_ASSERT(sc); 3016 3017 sc->age_cdata.age_rx_cons = AGE_RX_RING_CNT - 1; 3018 sc->age_morework = 0; 3019 rd = &sc->age_rdata; 3020 bzero(rd->age_rx_ring, AGE_RX_RING_SZ); 3021 for (i = 0; i < AGE_RX_RING_CNT; i++) { 3022 rxd = &sc->age_cdata.age_rxdesc[i]; 3023 rxd->rx_m = NULL; 3024 rxd->rx_desc = &rd->age_rx_ring[i]; 3025 if (age_newbuf(sc, rxd) != 0) 3026 return (ENOBUFS); 3027 } 3028 3029 bus_dmamap_sync(sc->age_cdata.age_rx_ring_tag, 3030 sc->age_cdata.age_rx_ring_map, BUS_DMASYNC_PREWRITE); 3031 3032 return (0); 3033 } 3034 3035 static void 3036 age_init_rr_ring(struct age_softc *sc) 3037 { 3038 struct age_ring_data *rd; 3039 3040 AGE_LOCK_ASSERT(sc); 3041 3042 sc->age_cdata.age_rr_cons = 0; 3043 AGE_RXCHAIN_RESET(sc); 3044 3045 rd = &sc->age_rdata; 3046 bzero(rd->age_rr_ring, AGE_RR_RING_SZ); 3047 bus_dmamap_sync(sc->age_cdata.age_rr_ring_tag, 3048 sc->age_cdata.age_rr_ring_map, 3049 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 3050 } 3051 3052 static void 3053 age_init_cmb_block(struct age_softc *sc) 3054 { 3055 struct age_ring_data *rd; 3056 3057 AGE_LOCK_ASSERT(sc); 3058 3059 rd = &sc->age_rdata; 3060 bzero(rd->age_cmb_block, AGE_CMB_BLOCK_SZ); 3061 bus_dmamap_sync(sc->age_cdata.age_cmb_block_tag, 3062 sc->age_cdata.age_cmb_block_map, 3063 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 3064 } 3065 3066 static void 3067 age_init_smb_block(struct age_softc *sc) 3068 { 3069 struct age_ring_data *rd; 3070 3071 AGE_LOCK_ASSERT(sc); 3072 3073 rd = &sc->age_rdata; 3074 bzero(rd->age_smb_block, AGE_SMB_BLOCK_SZ); 3075 bus_dmamap_sync(sc->age_cdata.age_smb_block_tag, 3076 sc->age_cdata.age_smb_block_map, 3077 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 3078 } 3079 3080 static int 3081 age_newbuf(struct age_softc *sc, struct age_rxdesc *rxd) 3082 { 3083 struct rx_desc *desc; 3084 struct mbuf *m; 3085 bus_dma_segment_t segs[1]; 3086 bus_dmamap_t map; 3087 int nsegs; 3088 3089 AGE_LOCK_ASSERT(sc); 3090 3091 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 3092 if (m == NULL) 3093 return (ENOBUFS); 3094 m->m_len = m->m_pkthdr.len = MCLBYTES; 3095 #ifndef __NO_STRICT_ALIGNMENT 3096 m_adj(m, AGE_RX_BUF_ALIGN); 3097 #endif 3098 3099 if (bus_dmamap_load_mbuf_sg(sc->age_cdata.age_rx_tag, 3100 sc->age_cdata.age_rx_sparemap, m, segs, &nsegs, 0) != 0) { 3101 m_freem(m); 3102 return (ENOBUFS); 3103 } 3104 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 3105 3106 if (rxd->rx_m != NULL) { 3107 bus_dmamap_sync(sc->age_cdata.age_rx_tag, rxd->rx_dmamap, 3108 BUS_DMASYNC_POSTREAD); 3109 bus_dmamap_unload(sc->age_cdata.age_rx_tag, rxd->rx_dmamap); 3110 } 3111 map = rxd->rx_dmamap; 3112 rxd->rx_dmamap = sc->age_cdata.age_rx_sparemap; 3113 sc->age_cdata.age_rx_sparemap = map; 3114 bus_dmamap_sync(sc->age_cdata.age_rx_tag, rxd->rx_dmamap, 3115 BUS_DMASYNC_PREREAD); 3116 rxd->rx_m = m; 3117 3118 desc = rxd->rx_desc; 3119 desc->addr = htole64(segs[0].ds_addr); 3120 desc->len = htole32((segs[0].ds_len & AGE_RD_LEN_MASK) << 3121 AGE_RD_LEN_SHIFT); 3122 return (0); 3123 } 3124 3125 static void 3126 age_rxvlan(struct age_softc *sc) 3127 { 3128 struct ifnet *ifp; 3129 uint32_t reg; 3130 3131 AGE_LOCK_ASSERT(sc); 3132 3133 ifp = sc->age_ifp; 3134 reg = CSR_READ_4(sc, AGE_MAC_CFG); 3135 reg &= ~MAC_CFG_VLAN_TAG_STRIP; 3136 if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0) 3137 reg |= MAC_CFG_VLAN_TAG_STRIP; 3138 CSR_WRITE_4(sc, AGE_MAC_CFG, reg); 3139 } 3140 3141 static u_int 3142 age_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) 3143 { 3144 uint32_t *mchash = arg; 3145 uint32_t crc; 3146 3147 crc = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN); 3148 mchash[crc >> 31] |= 1 << ((crc >> 26) & 0x1f); 3149 3150 return (1); 3151 } 3152 3153 static void 3154 age_rxfilter(struct age_softc *sc) 3155 { 3156 struct ifnet *ifp; 3157 uint32_t mchash[2]; 3158 uint32_t rxcfg; 3159 3160 AGE_LOCK_ASSERT(sc); 3161 3162 ifp = sc->age_ifp; 3163 3164 rxcfg = CSR_READ_4(sc, AGE_MAC_CFG); 3165 rxcfg &= ~(MAC_CFG_ALLMULTI | MAC_CFG_BCAST | MAC_CFG_PROMISC); 3166 if ((ifp->if_flags & IFF_BROADCAST) != 0) 3167 rxcfg |= MAC_CFG_BCAST; 3168 if ((ifp->if_flags & (IFF_PROMISC | IFF_ALLMULTI)) != 0) { 3169 if ((ifp->if_flags & IFF_PROMISC) != 0) 3170 rxcfg |= MAC_CFG_PROMISC; 3171 if ((ifp->if_flags & IFF_ALLMULTI) != 0) 3172 rxcfg |= MAC_CFG_ALLMULTI; 3173 CSR_WRITE_4(sc, AGE_MAR0, 0xFFFFFFFF); 3174 CSR_WRITE_4(sc, AGE_MAR1, 0xFFFFFFFF); 3175 CSR_WRITE_4(sc, AGE_MAC_CFG, rxcfg); 3176 return; 3177 } 3178 3179 /* Program new filter. */ 3180 bzero(mchash, sizeof(mchash)); 3181 if_foreach_llmaddr(ifp, age_hash_maddr, mchash); 3182 3183 CSR_WRITE_4(sc, AGE_MAR0, mchash[0]); 3184 CSR_WRITE_4(sc, AGE_MAR1, mchash[1]); 3185 CSR_WRITE_4(sc, AGE_MAC_CFG, rxcfg); 3186 } 3187 3188 static int 3189 sysctl_age_stats(SYSCTL_HANDLER_ARGS) 3190 { 3191 struct age_softc *sc; 3192 struct age_stats *stats; 3193 int error, result; 3194 3195 result = -1; 3196 error = sysctl_handle_int(oidp, &result, 0, req); 3197 3198 if (error != 0 || req->newptr == NULL) 3199 return (error); 3200 3201 if (result != 1) 3202 return (error); 3203 3204 sc = (struct age_softc *)arg1; 3205 stats = &sc->age_stat; 3206 printf("%s statistics:\n", device_get_nameunit(sc->age_dev)); 3207 printf("Transmit good frames : %ju\n", 3208 (uintmax_t)stats->tx_frames); 3209 printf("Transmit good broadcast frames : %ju\n", 3210 (uintmax_t)stats->tx_bcast_frames); 3211 printf("Transmit good multicast frames : %ju\n", 3212 (uintmax_t)stats->tx_mcast_frames); 3213 printf("Transmit pause control frames : %u\n", 3214 stats->tx_pause_frames); 3215 printf("Transmit control frames : %u\n", 3216 stats->tx_control_frames); 3217 printf("Transmit frames with excessive deferrals : %u\n", 3218 stats->tx_excess_defer); 3219 printf("Transmit deferrals : %u\n", 3220 stats->tx_deferred); 3221 printf("Transmit good octets : %ju\n", 3222 (uintmax_t)stats->tx_bytes); 3223 printf("Transmit good broadcast octets : %ju\n", 3224 (uintmax_t)stats->tx_bcast_bytes); 3225 printf("Transmit good multicast octets : %ju\n", 3226 (uintmax_t)stats->tx_mcast_bytes); 3227 printf("Transmit frames 64 bytes : %ju\n", 3228 (uintmax_t)stats->tx_pkts_64); 3229 printf("Transmit frames 65 to 127 bytes : %ju\n", 3230 (uintmax_t)stats->tx_pkts_65_127); 3231 printf("Transmit frames 128 to 255 bytes : %ju\n", 3232 (uintmax_t)stats->tx_pkts_128_255); 3233 printf("Transmit frames 256 to 511 bytes : %ju\n", 3234 (uintmax_t)stats->tx_pkts_256_511); 3235 printf("Transmit frames 512 to 1024 bytes : %ju\n", 3236 (uintmax_t)stats->tx_pkts_512_1023); 3237 printf("Transmit frames 1024 to 1518 bytes : %ju\n", 3238 (uintmax_t)stats->tx_pkts_1024_1518); 3239 printf("Transmit frames 1519 to MTU bytes : %ju\n", 3240 (uintmax_t)stats->tx_pkts_1519_max); 3241 printf("Transmit single collisions : %u\n", 3242 stats->tx_single_colls); 3243 printf("Transmit multiple collisions : %u\n", 3244 stats->tx_multi_colls); 3245 printf("Transmit late collisions : %u\n", 3246 stats->tx_late_colls); 3247 printf("Transmit abort due to excessive collisions : %u\n", 3248 stats->tx_excess_colls); 3249 printf("Transmit underruns due to FIFO underruns : %u\n", 3250 stats->tx_underrun); 3251 printf("Transmit descriptor write-back errors : %u\n", 3252 stats->tx_desc_underrun); 3253 printf("Transmit frames with length mismatched frame size : %u\n", 3254 stats->tx_lenerrs); 3255 printf("Transmit frames with truncated due to MTU size : %u\n", 3256 stats->tx_lenerrs); 3257 3258 printf("Receive good frames : %ju\n", 3259 (uintmax_t)stats->rx_frames); 3260 printf("Receive good broadcast frames : %ju\n", 3261 (uintmax_t)stats->rx_bcast_frames); 3262 printf("Receive good multicast frames : %ju\n", 3263 (uintmax_t)stats->rx_mcast_frames); 3264 printf("Receive pause control frames : %u\n", 3265 stats->rx_pause_frames); 3266 printf("Receive control frames : %u\n", 3267 stats->rx_control_frames); 3268 printf("Receive CRC errors : %u\n", 3269 stats->rx_crcerrs); 3270 printf("Receive frames with length errors : %u\n", 3271 stats->rx_lenerrs); 3272 printf("Receive good octets : %ju\n", 3273 (uintmax_t)stats->rx_bytes); 3274 printf("Receive good broadcast octets : %ju\n", 3275 (uintmax_t)stats->rx_bcast_bytes); 3276 printf("Receive good multicast octets : %ju\n", 3277 (uintmax_t)stats->rx_mcast_bytes); 3278 printf("Receive frames too short : %u\n", 3279 stats->rx_runts); 3280 printf("Receive fragmented frames : %ju\n", 3281 (uintmax_t)stats->rx_fragments); 3282 printf("Receive frames 64 bytes : %ju\n", 3283 (uintmax_t)stats->rx_pkts_64); 3284 printf("Receive frames 65 to 127 bytes : %ju\n", 3285 (uintmax_t)stats->rx_pkts_65_127); 3286 printf("Receive frames 128 to 255 bytes : %ju\n", 3287 (uintmax_t)stats->rx_pkts_128_255); 3288 printf("Receive frames 256 to 511 bytes : %ju\n", 3289 (uintmax_t)stats->rx_pkts_256_511); 3290 printf("Receive frames 512 to 1024 bytes : %ju\n", 3291 (uintmax_t)stats->rx_pkts_512_1023); 3292 printf("Receive frames 1024 to 1518 bytes : %ju\n", 3293 (uintmax_t)stats->rx_pkts_1024_1518); 3294 printf("Receive frames 1519 to MTU bytes : %ju\n", 3295 (uintmax_t)stats->rx_pkts_1519_max); 3296 printf("Receive frames too long : %ju\n", 3297 (uint64_t)stats->rx_pkts_truncated); 3298 printf("Receive frames with FIFO overflow : %u\n", 3299 stats->rx_fifo_oflows); 3300 printf("Receive frames with return descriptor overflow : %u\n", 3301 stats->rx_desc_oflows); 3302 printf("Receive frames with alignment errors : %u\n", 3303 stats->rx_alignerrs); 3304 printf("Receive frames dropped due to address filtering : %ju\n", 3305 (uint64_t)stats->rx_pkts_filtered); 3306 3307 return (error); 3308 } 3309 3310 static int 3311 sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high) 3312 { 3313 int error, value; 3314 3315 if (arg1 == NULL) 3316 return (EINVAL); 3317 value = *(int *)arg1; 3318 error = sysctl_handle_int(oidp, &value, 0, req); 3319 if (error || req->newptr == NULL) 3320 return (error); 3321 if (value < low || value > high) 3322 return (EINVAL); 3323 *(int *)arg1 = value; 3324 3325 return (0); 3326 } 3327 3328 static int 3329 sysctl_hw_age_proc_limit(SYSCTL_HANDLER_ARGS) 3330 { 3331 return (sysctl_int_range(oidp, arg1, arg2, req, 3332 AGE_PROC_MIN, AGE_PROC_MAX)); 3333 } 3334 3335 static int 3336 sysctl_hw_age_int_mod(SYSCTL_HANDLER_ARGS) 3337 { 3338 3339 return (sysctl_int_range(oidp, arg1, arg2, req, AGE_IM_TIMER_MIN, 3340 AGE_IM_TIMER_MAX)); 3341 } 3342