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