1 /* $OpenBSD: if_sk.c,v 2.33 2003/08/12 05:23:06 nate Exp $ */ 2 3 /*- 4 * SPDX-License-Identifier: BSD-4-Clause 5 * 6 * Copyright (c) 1997, 1998, 1999, 2000 7 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 8 * 9 * Redistribution and use in source and binary forms, with or without 10 * modification, are permitted provided that the following conditions 11 * are met: 12 * 1. Redistributions of source code must retain the above copyright 13 * notice, this list of conditions and the following disclaimer. 14 * 2. Redistributions in binary form must reproduce the above copyright 15 * notice, this list of conditions and the following disclaimer in the 16 * documentation and/or other materials provided with the distribution. 17 * 3. All advertising materials mentioning features or use of this software 18 * must display the following acknowledgement: 19 * This product includes software developed by Bill Paul. 20 * 4. Neither the name of the author nor the names of any co-contributors 21 * may be used to endorse or promote products derived from this software 22 * without specific prior written permission. 23 * 24 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 25 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 26 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 27 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 28 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 29 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 30 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 32 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 33 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 34 * THE POSSIBILITY OF SUCH DAMAGE. 35 */ 36 /*- 37 * Copyright (c) 2003 Nathan L. Binkert <binkertn@umich.edu> 38 * 39 * Permission to use, copy, modify, and distribute this software for any 40 * purpose with or without fee is hereby granted, provided that the above 41 * copyright notice and this permission notice appear in all copies. 42 * 43 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 44 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 45 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 46 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 47 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 48 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 49 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 50 */ 51 52 #include <sys/cdefs.h> 53 __FBSDID("$FreeBSD$"); 54 55 /* 56 * SysKonnect SK-NET gigabit ethernet driver for FreeBSD. Supports 57 * the SK-984x series adapters, both single port and dual port. 58 * References: 59 * The XaQti XMAC II datasheet, 60 * https://www.freebsd.org/~wpaul/SysKonnect/xmacii_datasheet_rev_c_9-29.pdf 61 * The SysKonnect GEnesis manual, http://www.syskonnect.com 62 * 63 * Note: XaQti has been acquired by Vitesse, and Vitesse does not have the 64 * XMAC II datasheet online. I have put my copy at people.freebsd.org as a 65 * convenience to others until Vitesse corrects this problem: 66 * 67 * https://people.freebsd.org/~wpaul/SysKonnect/xmacii_datasheet_rev_c_9-29.pdf 68 * 69 * Written by Bill Paul <wpaul@ee.columbia.edu> 70 * Department of Electrical Engineering 71 * Columbia University, New York City 72 */ 73 /* 74 * The SysKonnect gigabit ethernet adapters consist of two main 75 * components: the SysKonnect GEnesis controller chip and the XaQti Corp. 76 * XMAC II gigabit ethernet MAC. The XMAC provides all of the MAC 77 * components and a PHY while the GEnesis controller provides a PCI 78 * interface with DMA support. Each card may have between 512K and 79 * 2MB of SRAM on board depending on the configuration. 80 * 81 * The SysKonnect GEnesis controller can have either one or two XMAC 82 * chips connected to it, allowing single or dual port NIC configurations. 83 * SysKonnect has the distinction of being the only vendor on the market 84 * with a dual port gigabit ethernet NIC. The GEnesis provides dual FIFOs, 85 * dual DMA queues, packet/MAC/transmit arbiters and direct access to the 86 * XMAC registers. This driver takes advantage of these features to allow 87 * both XMACs to operate as independent interfaces. 88 */ 89 90 #include <sys/param.h> 91 #include <sys/systm.h> 92 #include <sys/bus.h> 93 #include <sys/endian.h> 94 #include <sys/mbuf.h> 95 #include <sys/malloc.h> 96 #include <sys/kernel.h> 97 #include <sys/module.h> 98 #include <sys/socket.h> 99 #include <sys/sockio.h> 100 #include <sys/queue.h> 101 #include <sys/sysctl.h> 102 103 #include <net/bpf.h> 104 #include <net/ethernet.h> 105 #include <net/if.h> 106 #include <net/if_var.h> 107 #include <net/if_arp.h> 108 #include <net/if_dl.h> 109 #include <net/if_media.h> 110 #include <net/if_types.h> 111 #include <net/if_vlan_var.h> 112 113 #include <netinet/in.h> 114 #include <netinet/in_systm.h> 115 #include <netinet/ip.h> 116 117 #include <machine/bus.h> 118 #include <machine/in_cksum.h> 119 #include <machine/resource.h> 120 #include <sys/rman.h> 121 122 #include <dev/mii/mii.h> 123 #include <dev/mii/miivar.h> 124 #include <dev/mii/brgphyreg.h> 125 126 #include <dev/pci/pcireg.h> 127 #include <dev/pci/pcivar.h> 128 129 #if 0 130 #define SK_USEIOSPACE 131 #endif 132 133 #include <dev/sk/if_skreg.h> 134 #include <dev/sk/xmaciireg.h> 135 #include <dev/sk/yukonreg.h> 136 137 MODULE_DEPEND(sk, pci, 1, 1, 1); 138 MODULE_DEPEND(sk, ether, 1, 1, 1); 139 MODULE_DEPEND(sk, miibus, 1, 1, 1); 140 141 /* "device miibus" required. See GENERIC if you get errors here. */ 142 #include "miibus_if.h" 143 144 static const struct sk_type sk_devs[] = { 145 { 146 VENDORID_SK, 147 DEVICEID_SK_V1, 148 "SysKonnect Gigabit Ethernet (V1.0)" 149 }, 150 { 151 VENDORID_SK, 152 DEVICEID_SK_V2, 153 "SysKonnect Gigabit Ethernet (V2.0)" 154 }, 155 { 156 VENDORID_MARVELL, 157 DEVICEID_SK_V2, 158 "Marvell Gigabit Ethernet" 159 }, 160 { 161 VENDORID_MARVELL, 162 DEVICEID_BELKIN_5005, 163 "Belkin F5D5005 Gigabit Ethernet" 164 }, 165 { 166 VENDORID_3COM, 167 DEVICEID_3COM_3C940, 168 "3Com 3C940 Gigabit Ethernet" 169 }, 170 { 171 VENDORID_LINKSYS, 172 DEVICEID_LINKSYS_EG1032, 173 "Linksys EG1032 Gigabit Ethernet" 174 }, 175 { 176 VENDORID_DLINK, 177 DEVICEID_DLINK_DGE530T_A1, 178 "D-Link DGE-530T Gigabit Ethernet" 179 }, 180 { 181 VENDORID_DLINK, 182 DEVICEID_DLINK_DGE530T_B1, 183 "D-Link DGE-530T Gigabit Ethernet" 184 }, 185 { 0, 0, NULL } 186 }; 187 188 static int skc_probe(device_t); 189 static int skc_attach(device_t); 190 static int skc_detach(device_t); 191 static int skc_shutdown(device_t); 192 static int skc_suspend(device_t); 193 static int skc_resume(device_t); 194 static bus_dma_tag_t skc_get_dma_tag(device_t, device_t); 195 static int sk_detach(device_t); 196 static int sk_probe(device_t); 197 static int sk_attach(device_t); 198 static void sk_tick(void *); 199 static void sk_yukon_tick(void *); 200 static void sk_intr(void *); 201 static void sk_intr_xmac(struct sk_if_softc *); 202 static void sk_intr_bcom(struct sk_if_softc *); 203 static void sk_intr_yukon(struct sk_if_softc *); 204 static __inline void sk_rxcksum(struct ifnet *, struct mbuf *, u_int32_t); 205 static __inline int sk_rxvalid(struct sk_softc *, u_int32_t, u_int32_t); 206 static void sk_rxeof(struct sk_if_softc *); 207 static void sk_jumbo_rxeof(struct sk_if_softc *); 208 static void sk_txeof(struct sk_if_softc *); 209 static void sk_txcksum(struct ifnet *, struct mbuf *, struct sk_tx_desc *); 210 static int sk_encap(struct sk_if_softc *, struct mbuf **); 211 static void sk_start(struct ifnet *); 212 static void sk_start_locked(struct ifnet *); 213 static int sk_ioctl(struct ifnet *, u_long, caddr_t); 214 static void sk_init(void *); 215 static void sk_init_locked(struct sk_if_softc *); 216 static void sk_init_xmac(struct sk_if_softc *); 217 static void sk_init_yukon(struct sk_if_softc *); 218 static void sk_stop(struct sk_if_softc *); 219 static void sk_watchdog(void *); 220 static int sk_ifmedia_upd(struct ifnet *); 221 static void sk_ifmedia_sts(struct ifnet *, struct ifmediareq *); 222 static void sk_reset(struct sk_softc *); 223 static __inline void sk_discard_rxbuf(struct sk_if_softc *, int); 224 static __inline void sk_discard_jumbo_rxbuf(struct sk_if_softc *, int); 225 static int sk_newbuf(struct sk_if_softc *, int); 226 static int sk_jumbo_newbuf(struct sk_if_softc *, int); 227 static void sk_dmamap_cb(void *, bus_dma_segment_t *, int, int); 228 static int sk_dma_alloc(struct sk_if_softc *); 229 static int sk_dma_jumbo_alloc(struct sk_if_softc *); 230 static void sk_dma_free(struct sk_if_softc *); 231 static void sk_dma_jumbo_free(struct sk_if_softc *); 232 static int sk_init_rx_ring(struct sk_if_softc *); 233 static int sk_init_jumbo_rx_ring(struct sk_if_softc *); 234 static void sk_init_tx_ring(struct sk_if_softc *); 235 static u_int32_t sk_win_read_4(struct sk_softc *, int); 236 static u_int16_t sk_win_read_2(struct sk_softc *, int); 237 static u_int8_t sk_win_read_1(struct sk_softc *, int); 238 static void sk_win_write_4(struct sk_softc *, int, u_int32_t); 239 static void sk_win_write_2(struct sk_softc *, int, u_int32_t); 240 static void sk_win_write_1(struct sk_softc *, int, u_int32_t); 241 242 static int sk_miibus_readreg(device_t, int, int); 243 static int sk_miibus_writereg(device_t, int, int, int); 244 static void sk_miibus_statchg(device_t); 245 246 static int sk_xmac_miibus_readreg(struct sk_if_softc *, int, int); 247 static int sk_xmac_miibus_writereg(struct sk_if_softc *, int, int, 248 int); 249 static void sk_xmac_miibus_statchg(struct sk_if_softc *); 250 251 static int sk_marv_miibus_readreg(struct sk_if_softc *, int, int); 252 static int sk_marv_miibus_writereg(struct sk_if_softc *, int, int, 253 int); 254 static void sk_marv_miibus_statchg(struct sk_if_softc *); 255 256 static uint32_t sk_xmchash(const uint8_t *); 257 static void sk_setfilt(struct sk_if_softc *, u_int16_t *, int); 258 static void sk_rxfilter(struct sk_if_softc *); 259 static void sk_rxfilter_genesis(struct sk_if_softc *); 260 static void sk_rxfilter_yukon(struct sk_if_softc *); 261 262 static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high); 263 static int sysctl_hw_sk_int_mod(SYSCTL_HANDLER_ARGS); 264 265 /* Tunables. */ 266 static int jumbo_disable = 0; 267 TUNABLE_INT("hw.skc.jumbo_disable", &jumbo_disable); 268 269 /* 270 * It seems that SK-NET GENESIS supports very simple checksum offload 271 * capability for Tx and I believe it can generate 0 checksum value for 272 * UDP packets in Tx as the hardware can't differenciate UDP packets from 273 * TCP packets. 0 chcecksum value for UDP packet is an invalid one as it 274 * means sender didn't perforam checksum computation. For the safety I 275 * disabled UDP checksum offload capability at the moment. Alternatively 276 * we can intrduce a LINK0/LINK1 flag as hme(4) did in its Tx checksum 277 * offload routine. 278 */ 279 #define SK_CSUM_FEATURES (CSUM_TCP) 280 281 /* 282 * Note that we have newbus methods for both the GEnesis controller 283 * itself and the XMAC(s). The XMACs are children of the GEnesis, and 284 * the miibus code is a child of the XMACs. We need to do it this way 285 * so that the miibus drivers can access the PHY registers on the 286 * right PHY. It's not quite what I had in mind, but it's the only 287 * design that achieves the desired effect. 288 */ 289 static device_method_t skc_methods[] = { 290 /* Device interface */ 291 DEVMETHOD(device_probe, skc_probe), 292 DEVMETHOD(device_attach, skc_attach), 293 DEVMETHOD(device_detach, skc_detach), 294 DEVMETHOD(device_suspend, skc_suspend), 295 DEVMETHOD(device_resume, skc_resume), 296 DEVMETHOD(device_shutdown, skc_shutdown), 297 298 DEVMETHOD(bus_get_dma_tag, skc_get_dma_tag), 299 300 DEVMETHOD_END 301 }; 302 303 static driver_t skc_driver = { 304 "skc", 305 skc_methods, 306 sizeof(struct sk_softc) 307 }; 308 309 static devclass_t skc_devclass; 310 311 static device_method_t sk_methods[] = { 312 /* Device interface */ 313 DEVMETHOD(device_probe, sk_probe), 314 DEVMETHOD(device_attach, sk_attach), 315 DEVMETHOD(device_detach, sk_detach), 316 DEVMETHOD(device_shutdown, bus_generic_shutdown), 317 318 /* MII interface */ 319 DEVMETHOD(miibus_readreg, sk_miibus_readreg), 320 DEVMETHOD(miibus_writereg, sk_miibus_writereg), 321 DEVMETHOD(miibus_statchg, sk_miibus_statchg), 322 323 DEVMETHOD_END 324 }; 325 326 static driver_t sk_driver = { 327 "sk", 328 sk_methods, 329 sizeof(struct sk_if_softc) 330 }; 331 332 static devclass_t sk_devclass; 333 334 DRIVER_MODULE(skc, pci, skc_driver, skc_devclass, NULL, NULL); 335 DRIVER_MODULE(sk, skc, sk_driver, sk_devclass, NULL, NULL); 336 DRIVER_MODULE(miibus, sk, miibus_driver, miibus_devclass, NULL, NULL); 337 338 static struct resource_spec sk_res_spec_io[] = { 339 { SYS_RES_IOPORT, PCIR_BAR(1), RF_ACTIVE }, 340 { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE }, 341 { -1, 0, 0 } 342 }; 343 344 static struct resource_spec sk_res_spec_mem[] = { 345 { SYS_RES_MEMORY, PCIR_BAR(0), RF_ACTIVE }, 346 { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE }, 347 { -1, 0, 0 } 348 }; 349 350 #define SK_SETBIT(sc, reg, x) \ 351 CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | x) 352 353 #define SK_CLRBIT(sc, reg, x) \ 354 CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~x) 355 356 #define SK_WIN_SETBIT_4(sc, reg, x) \ 357 sk_win_write_4(sc, reg, sk_win_read_4(sc, reg) | x) 358 359 #define SK_WIN_CLRBIT_4(sc, reg, x) \ 360 sk_win_write_4(sc, reg, sk_win_read_4(sc, reg) & ~x) 361 362 #define SK_WIN_SETBIT_2(sc, reg, x) \ 363 sk_win_write_2(sc, reg, sk_win_read_2(sc, reg) | x) 364 365 #define SK_WIN_CLRBIT_2(sc, reg, x) \ 366 sk_win_write_2(sc, reg, sk_win_read_2(sc, reg) & ~x) 367 368 static u_int32_t 369 sk_win_read_4(sc, reg) 370 struct sk_softc *sc; 371 int reg; 372 { 373 #ifdef SK_USEIOSPACE 374 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 375 return(CSR_READ_4(sc, SK_WIN_BASE + SK_REG(reg))); 376 #else 377 return(CSR_READ_4(sc, reg)); 378 #endif 379 } 380 381 static u_int16_t 382 sk_win_read_2(sc, reg) 383 struct sk_softc *sc; 384 int reg; 385 { 386 #ifdef SK_USEIOSPACE 387 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 388 return(CSR_READ_2(sc, SK_WIN_BASE + SK_REG(reg))); 389 #else 390 return(CSR_READ_2(sc, reg)); 391 #endif 392 } 393 394 static u_int8_t 395 sk_win_read_1(sc, reg) 396 struct sk_softc *sc; 397 int reg; 398 { 399 #ifdef SK_USEIOSPACE 400 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 401 return(CSR_READ_1(sc, SK_WIN_BASE + SK_REG(reg))); 402 #else 403 return(CSR_READ_1(sc, reg)); 404 #endif 405 } 406 407 static void 408 sk_win_write_4(sc, reg, val) 409 struct sk_softc *sc; 410 int reg; 411 u_int32_t val; 412 { 413 #ifdef SK_USEIOSPACE 414 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 415 CSR_WRITE_4(sc, SK_WIN_BASE + SK_REG(reg), val); 416 #else 417 CSR_WRITE_4(sc, reg, val); 418 #endif 419 return; 420 } 421 422 static void 423 sk_win_write_2(sc, reg, val) 424 struct sk_softc *sc; 425 int reg; 426 u_int32_t val; 427 { 428 #ifdef SK_USEIOSPACE 429 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 430 CSR_WRITE_2(sc, SK_WIN_BASE + SK_REG(reg), val); 431 #else 432 CSR_WRITE_2(sc, reg, val); 433 #endif 434 return; 435 } 436 437 static void 438 sk_win_write_1(sc, reg, val) 439 struct sk_softc *sc; 440 int reg; 441 u_int32_t val; 442 { 443 #ifdef SK_USEIOSPACE 444 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 445 CSR_WRITE_1(sc, SK_WIN_BASE + SK_REG(reg), val); 446 #else 447 CSR_WRITE_1(sc, reg, val); 448 #endif 449 return; 450 } 451 452 static int 453 sk_miibus_readreg(dev, phy, reg) 454 device_t dev; 455 int phy, reg; 456 { 457 struct sk_if_softc *sc_if; 458 int v; 459 460 sc_if = device_get_softc(dev); 461 462 SK_IF_MII_LOCK(sc_if); 463 switch(sc_if->sk_softc->sk_type) { 464 case SK_GENESIS: 465 v = sk_xmac_miibus_readreg(sc_if, phy, reg); 466 break; 467 case SK_YUKON: 468 case SK_YUKON_LITE: 469 case SK_YUKON_LP: 470 v = sk_marv_miibus_readreg(sc_if, phy, reg); 471 break; 472 default: 473 v = 0; 474 break; 475 } 476 SK_IF_MII_UNLOCK(sc_if); 477 478 return (v); 479 } 480 481 static int 482 sk_miibus_writereg(dev, phy, reg, val) 483 device_t dev; 484 int phy, reg, val; 485 { 486 struct sk_if_softc *sc_if; 487 int v; 488 489 sc_if = device_get_softc(dev); 490 491 SK_IF_MII_LOCK(sc_if); 492 switch(sc_if->sk_softc->sk_type) { 493 case SK_GENESIS: 494 v = sk_xmac_miibus_writereg(sc_if, phy, reg, val); 495 break; 496 case SK_YUKON: 497 case SK_YUKON_LITE: 498 case SK_YUKON_LP: 499 v = sk_marv_miibus_writereg(sc_if, phy, reg, val); 500 break; 501 default: 502 v = 0; 503 break; 504 } 505 SK_IF_MII_UNLOCK(sc_if); 506 507 return (v); 508 } 509 510 static void 511 sk_miibus_statchg(dev) 512 device_t dev; 513 { 514 struct sk_if_softc *sc_if; 515 516 sc_if = device_get_softc(dev); 517 518 SK_IF_MII_LOCK(sc_if); 519 switch(sc_if->sk_softc->sk_type) { 520 case SK_GENESIS: 521 sk_xmac_miibus_statchg(sc_if); 522 break; 523 case SK_YUKON: 524 case SK_YUKON_LITE: 525 case SK_YUKON_LP: 526 sk_marv_miibus_statchg(sc_if); 527 break; 528 } 529 SK_IF_MII_UNLOCK(sc_if); 530 531 return; 532 } 533 534 static int 535 sk_xmac_miibus_readreg(sc_if, phy, reg) 536 struct sk_if_softc *sc_if; 537 int phy, reg; 538 { 539 int i; 540 541 SK_XM_WRITE_2(sc_if, XM_PHY_ADDR, reg|(phy << 8)); 542 SK_XM_READ_2(sc_if, XM_PHY_DATA); 543 if (sc_if->sk_phytype != SK_PHYTYPE_XMAC) { 544 for (i = 0; i < SK_TIMEOUT; i++) { 545 DELAY(1); 546 if (SK_XM_READ_2(sc_if, XM_MMUCMD) & 547 XM_MMUCMD_PHYDATARDY) 548 break; 549 } 550 551 if (i == SK_TIMEOUT) { 552 if_printf(sc_if->sk_ifp, "phy failed to come ready\n"); 553 return(0); 554 } 555 } 556 DELAY(1); 557 i = SK_XM_READ_2(sc_if, XM_PHY_DATA); 558 559 return(i); 560 } 561 562 static int 563 sk_xmac_miibus_writereg(sc_if, phy, reg, val) 564 struct sk_if_softc *sc_if; 565 int phy, reg, val; 566 { 567 int i; 568 569 SK_XM_WRITE_2(sc_if, XM_PHY_ADDR, reg|(phy << 8)); 570 for (i = 0; i < SK_TIMEOUT; i++) { 571 if (!(SK_XM_READ_2(sc_if, XM_MMUCMD) & XM_MMUCMD_PHYBUSY)) 572 break; 573 } 574 575 if (i == SK_TIMEOUT) { 576 if_printf(sc_if->sk_ifp, "phy failed to come ready\n"); 577 return (ETIMEDOUT); 578 } 579 580 SK_XM_WRITE_2(sc_if, XM_PHY_DATA, val); 581 for (i = 0; i < SK_TIMEOUT; i++) { 582 DELAY(1); 583 if (!(SK_XM_READ_2(sc_if, XM_MMUCMD) & XM_MMUCMD_PHYBUSY)) 584 break; 585 } 586 if (i == SK_TIMEOUT) 587 if_printf(sc_if->sk_ifp, "phy write timed out\n"); 588 589 return(0); 590 } 591 592 static void 593 sk_xmac_miibus_statchg(sc_if) 594 struct sk_if_softc *sc_if; 595 { 596 struct mii_data *mii; 597 598 mii = device_get_softc(sc_if->sk_miibus); 599 600 /* 601 * If this is a GMII PHY, manually set the XMAC's 602 * duplex mode accordingly. 603 */ 604 if (sc_if->sk_phytype != SK_PHYTYPE_XMAC) { 605 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) { 606 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_GMIIFDX); 607 } else { 608 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_GMIIFDX); 609 } 610 } 611 } 612 613 static int 614 sk_marv_miibus_readreg(sc_if, phy, reg) 615 struct sk_if_softc *sc_if; 616 int phy, reg; 617 { 618 u_int16_t val; 619 int i; 620 621 if (sc_if->sk_phytype != SK_PHYTYPE_MARV_COPPER && 622 sc_if->sk_phytype != SK_PHYTYPE_MARV_FIBER) { 623 return(0); 624 } 625 626 SK_YU_WRITE_2(sc_if, YUKON_SMICR, YU_SMICR_PHYAD(phy) | 627 YU_SMICR_REGAD(reg) | YU_SMICR_OP_READ); 628 629 for (i = 0; i < SK_TIMEOUT; i++) { 630 DELAY(1); 631 val = SK_YU_READ_2(sc_if, YUKON_SMICR); 632 if (val & YU_SMICR_READ_VALID) 633 break; 634 } 635 636 if (i == SK_TIMEOUT) { 637 if_printf(sc_if->sk_ifp, "phy failed to come ready\n"); 638 return(0); 639 } 640 641 val = SK_YU_READ_2(sc_if, YUKON_SMIDR); 642 643 return(val); 644 } 645 646 static int 647 sk_marv_miibus_writereg(sc_if, phy, reg, val) 648 struct sk_if_softc *sc_if; 649 int phy, reg, val; 650 { 651 int i; 652 653 SK_YU_WRITE_2(sc_if, YUKON_SMIDR, val); 654 SK_YU_WRITE_2(sc_if, YUKON_SMICR, YU_SMICR_PHYAD(phy) | 655 YU_SMICR_REGAD(reg) | YU_SMICR_OP_WRITE); 656 657 for (i = 0; i < SK_TIMEOUT; i++) { 658 DELAY(1); 659 if ((SK_YU_READ_2(sc_if, YUKON_SMICR) & YU_SMICR_BUSY) == 0) 660 break; 661 } 662 if (i == SK_TIMEOUT) 663 if_printf(sc_if->sk_ifp, "phy write timeout\n"); 664 665 return(0); 666 } 667 668 static void 669 sk_marv_miibus_statchg(sc_if) 670 struct sk_if_softc *sc_if; 671 { 672 return; 673 } 674 675 #define HASH_BITS 6 676 677 static u_int32_t 678 sk_xmchash(addr) 679 const uint8_t *addr; 680 { 681 uint32_t crc; 682 683 /* Compute CRC for the address value. */ 684 crc = ether_crc32_le(addr, ETHER_ADDR_LEN); 685 686 return (~crc & ((1 << HASH_BITS) - 1)); 687 } 688 689 static void 690 sk_setfilt(sc_if, addr, slot) 691 struct sk_if_softc *sc_if; 692 u_int16_t *addr; 693 int slot; 694 { 695 int base; 696 697 base = XM_RXFILT_ENTRY(slot); 698 699 SK_XM_WRITE_2(sc_if, base, addr[0]); 700 SK_XM_WRITE_2(sc_if, base + 2, addr[1]); 701 SK_XM_WRITE_2(sc_if, base + 4, addr[2]); 702 703 return; 704 } 705 706 static void 707 sk_rxfilter(sc_if) 708 struct sk_if_softc *sc_if; 709 { 710 struct sk_softc *sc; 711 712 SK_IF_LOCK_ASSERT(sc_if); 713 714 sc = sc_if->sk_softc; 715 if (sc->sk_type == SK_GENESIS) 716 sk_rxfilter_genesis(sc_if); 717 else 718 sk_rxfilter_yukon(sc_if); 719 } 720 721 struct sk_add_maddr_genesis_ctx { 722 struct sk_if_softc *sc_if; 723 uint32_t hashes[2]; 724 uint32_t mode; 725 }; 726 727 static u_int 728 sk_add_maddr_genesis(void *arg, struct sockaddr_dl *sdl, u_int cnt) 729 { 730 struct sk_add_maddr_genesis_ctx *ctx = arg; 731 int h; 732 733 /* 734 * Program the first XM_RXFILT_MAX multicast groups 735 * into the perfect filter. 736 */ 737 if (cnt + 1 < XM_RXFILT_MAX) { 738 sk_setfilt(ctx->sc_if, (uint16_t *)LLADDR(sdl), cnt + 1); 739 ctx->mode |= XM_MODE_RX_USE_PERFECT; 740 return (1); 741 } 742 h = sk_xmchash((const uint8_t *)LLADDR(sdl)); 743 if (h < 32) 744 ctx->hashes[0] |= (1 << h); 745 else 746 ctx->hashes[1] |= (1 << (h - 32)); 747 ctx->mode |= XM_MODE_RX_USE_HASH; 748 749 return (1); 750 } 751 752 static void 753 sk_rxfilter_genesis(struct sk_if_softc *sc_if) 754 { 755 struct ifnet *ifp = sc_if->sk_ifp; 756 struct sk_add_maddr_genesis_ctx ctx = { sc_if, { 0, 0 } }; 757 int i; 758 u_int16_t dummy[] = { 0, 0, 0 }; 759 760 SK_IF_LOCK_ASSERT(sc_if); 761 762 ctx.mode = SK_XM_READ_4(sc_if, XM_MODE); 763 ctx.mode &= ~(XM_MODE_RX_PROMISC | XM_MODE_RX_USE_HASH | 764 XM_MODE_RX_USE_PERFECT); 765 /* First, zot all the existing perfect filters. */ 766 for (i = 1; i < XM_RXFILT_MAX; i++) 767 sk_setfilt(sc_if, dummy, i); 768 769 /* Now program new ones. */ 770 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 771 if (ifp->if_flags & IFF_ALLMULTI) 772 ctx.mode |= XM_MODE_RX_USE_HASH; 773 if (ifp->if_flags & IFF_PROMISC) 774 ctx.mode |= XM_MODE_RX_PROMISC; 775 ctx.hashes[0] = 0xFFFFFFFF; 776 ctx.hashes[1] = 0xFFFFFFFF; 777 } else 778 /* XXX want to maintain reverse semantics */ 779 if_foreach_llmaddr(ifp, sk_add_maddr_genesis, &ctx); 780 781 SK_XM_WRITE_4(sc_if, XM_MODE, ctx.mode); 782 SK_XM_WRITE_4(sc_if, XM_MAR0, ctx.hashes[0]); 783 SK_XM_WRITE_4(sc_if, XM_MAR2, ctx.hashes[1]); 784 } 785 786 static u_int 787 sk_hash_maddr_yukon(void *arg, struct sockaddr_dl *sdl, u_int cnt) 788 { 789 uint32_t crc, *hashes = arg; 790 791 crc = ether_crc32_be(LLADDR(sdl), ETHER_ADDR_LEN); 792 /* Just want the 6 least significant bits. */ 793 crc &= 0x3f; 794 /* Set the corresponding bit in the hash table. */ 795 hashes[crc >> 5] |= 1 << (crc & 0x1f); 796 797 return (1); 798 } 799 800 static void 801 sk_rxfilter_yukon(struct sk_if_softc *sc_if) 802 { 803 struct ifnet *ifp; 804 uint32_t hashes[2] = { 0, 0 }, mode; 805 806 SK_IF_LOCK_ASSERT(sc_if); 807 808 ifp = sc_if->sk_ifp; 809 mode = SK_YU_READ_2(sc_if, YUKON_RCR); 810 if (ifp->if_flags & IFF_PROMISC) 811 mode &= ~(YU_RCR_UFLEN | YU_RCR_MUFLEN); 812 else if (ifp->if_flags & IFF_ALLMULTI) { 813 mode |= YU_RCR_UFLEN | YU_RCR_MUFLEN; 814 hashes[0] = 0xFFFFFFFF; 815 hashes[1] = 0xFFFFFFFF; 816 } else { 817 mode |= YU_RCR_UFLEN; 818 if_foreach_llmaddr(ifp, sk_hash_maddr_yukon, hashes); 819 if (hashes[0] != 0 || hashes[1] != 0) 820 mode |= YU_RCR_MUFLEN; 821 } 822 823 SK_YU_WRITE_2(sc_if, YUKON_MCAH1, hashes[0] & 0xffff); 824 SK_YU_WRITE_2(sc_if, YUKON_MCAH2, (hashes[0] >> 16) & 0xffff); 825 SK_YU_WRITE_2(sc_if, YUKON_MCAH3, hashes[1] & 0xffff); 826 SK_YU_WRITE_2(sc_if, YUKON_MCAH4, (hashes[1] >> 16) & 0xffff); 827 SK_YU_WRITE_2(sc_if, YUKON_RCR, mode); 828 } 829 830 static int 831 sk_init_rx_ring(sc_if) 832 struct sk_if_softc *sc_if; 833 { 834 struct sk_ring_data *rd; 835 bus_addr_t addr; 836 u_int32_t csum_start; 837 int i; 838 839 sc_if->sk_cdata.sk_rx_cons = 0; 840 841 csum_start = (ETHER_HDR_LEN + sizeof(struct ip)) << 16 | 842 ETHER_HDR_LEN; 843 rd = &sc_if->sk_rdata; 844 bzero(rd->sk_rx_ring, sizeof(struct sk_rx_desc) * SK_RX_RING_CNT); 845 for (i = 0; i < SK_RX_RING_CNT; i++) { 846 if (sk_newbuf(sc_if, i) != 0) 847 return (ENOBUFS); 848 if (i == (SK_RX_RING_CNT - 1)) 849 addr = SK_RX_RING_ADDR(sc_if, 0); 850 else 851 addr = SK_RX_RING_ADDR(sc_if, i + 1); 852 rd->sk_rx_ring[i].sk_next = htole32(SK_ADDR_LO(addr)); 853 rd->sk_rx_ring[i].sk_csum_start = htole32(csum_start); 854 } 855 856 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag, 857 sc_if->sk_cdata.sk_rx_ring_map, 858 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 859 860 return(0); 861 } 862 863 static int 864 sk_init_jumbo_rx_ring(sc_if) 865 struct sk_if_softc *sc_if; 866 { 867 struct sk_ring_data *rd; 868 bus_addr_t addr; 869 u_int32_t csum_start; 870 int i; 871 872 sc_if->sk_cdata.sk_jumbo_rx_cons = 0; 873 874 csum_start = ((ETHER_HDR_LEN + sizeof(struct ip)) << 16) | 875 ETHER_HDR_LEN; 876 rd = &sc_if->sk_rdata; 877 bzero(rd->sk_jumbo_rx_ring, 878 sizeof(struct sk_rx_desc) * SK_JUMBO_RX_RING_CNT); 879 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) { 880 if (sk_jumbo_newbuf(sc_if, i) != 0) 881 return (ENOBUFS); 882 if (i == (SK_JUMBO_RX_RING_CNT - 1)) 883 addr = SK_JUMBO_RX_RING_ADDR(sc_if, 0); 884 else 885 addr = SK_JUMBO_RX_RING_ADDR(sc_if, i + 1); 886 rd->sk_jumbo_rx_ring[i].sk_next = htole32(SK_ADDR_LO(addr)); 887 rd->sk_jumbo_rx_ring[i].sk_csum_start = htole32(csum_start); 888 } 889 890 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 891 sc_if->sk_cdata.sk_jumbo_rx_ring_map, 892 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 893 894 return (0); 895 } 896 897 static void 898 sk_init_tx_ring(sc_if) 899 struct sk_if_softc *sc_if; 900 { 901 struct sk_ring_data *rd; 902 struct sk_txdesc *txd; 903 bus_addr_t addr; 904 int i; 905 906 STAILQ_INIT(&sc_if->sk_cdata.sk_txfreeq); 907 STAILQ_INIT(&sc_if->sk_cdata.sk_txbusyq); 908 909 sc_if->sk_cdata.sk_tx_prod = 0; 910 sc_if->sk_cdata.sk_tx_cons = 0; 911 sc_if->sk_cdata.sk_tx_cnt = 0; 912 913 rd = &sc_if->sk_rdata; 914 bzero(rd->sk_tx_ring, sizeof(struct sk_tx_desc) * SK_TX_RING_CNT); 915 for (i = 0; i < SK_TX_RING_CNT; i++) { 916 if (i == (SK_TX_RING_CNT - 1)) 917 addr = SK_TX_RING_ADDR(sc_if, 0); 918 else 919 addr = SK_TX_RING_ADDR(sc_if, i + 1); 920 rd->sk_tx_ring[i].sk_next = htole32(SK_ADDR_LO(addr)); 921 txd = &sc_if->sk_cdata.sk_txdesc[i]; 922 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txfreeq, txd, tx_q); 923 } 924 925 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag, 926 sc_if->sk_cdata.sk_tx_ring_map, 927 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 928 } 929 930 static __inline void 931 sk_discard_rxbuf(sc_if, idx) 932 struct sk_if_softc *sc_if; 933 int idx; 934 { 935 struct sk_rx_desc *r; 936 struct sk_rxdesc *rxd; 937 struct mbuf *m; 938 939 940 r = &sc_if->sk_rdata.sk_rx_ring[idx]; 941 rxd = &sc_if->sk_cdata.sk_rxdesc[idx]; 942 m = rxd->rx_m; 943 r->sk_ctl = htole32(m->m_len | SK_RXSTAT | SK_OPCODE_CSUM); 944 } 945 946 static __inline void 947 sk_discard_jumbo_rxbuf(sc_if, idx) 948 struct sk_if_softc *sc_if; 949 int idx; 950 { 951 struct sk_rx_desc *r; 952 struct sk_rxdesc *rxd; 953 struct mbuf *m; 954 955 r = &sc_if->sk_rdata.sk_jumbo_rx_ring[idx]; 956 rxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[idx]; 957 m = rxd->rx_m; 958 r->sk_ctl = htole32(m->m_len | SK_RXSTAT | SK_OPCODE_CSUM); 959 } 960 961 static int 962 sk_newbuf(sc_if, idx) 963 struct sk_if_softc *sc_if; 964 int idx; 965 { 966 struct sk_rx_desc *r; 967 struct sk_rxdesc *rxd; 968 struct mbuf *m; 969 bus_dma_segment_t segs[1]; 970 bus_dmamap_t map; 971 int nsegs; 972 973 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 974 if (m == NULL) 975 return (ENOBUFS); 976 m->m_len = m->m_pkthdr.len = MCLBYTES; 977 m_adj(m, ETHER_ALIGN); 978 979 if (bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_rx_tag, 980 sc_if->sk_cdata.sk_rx_sparemap, m, segs, &nsegs, 0) != 0) { 981 m_freem(m); 982 return (ENOBUFS); 983 } 984 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 985 986 rxd = &sc_if->sk_cdata.sk_rxdesc[idx]; 987 if (rxd->rx_m != NULL) { 988 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap, 989 BUS_DMASYNC_POSTREAD); 990 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap); 991 } 992 map = rxd->rx_dmamap; 993 rxd->rx_dmamap = sc_if->sk_cdata.sk_rx_sparemap; 994 sc_if->sk_cdata.sk_rx_sparemap = map; 995 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap, 996 BUS_DMASYNC_PREREAD); 997 rxd->rx_m = m; 998 r = &sc_if->sk_rdata.sk_rx_ring[idx]; 999 r->sk_data_lo = htole32(SK_ADDR_LO(segs[0].ds_addr)); 1000 r->sk_data_hi = htole32(SK_ADDR_HI(segs[0].ds_addr)); 1001 r->sk_ctl = htole32(segs[0].ds_len | SK_RXSTAT | SK_OPCODE_CSUM); 1002 1003 return (0); 1004 } 1005 1006 static int 1007 sk_jumbo_newbuf(sc_if, idx) 1008 struct sk_if_softc *sc_if; 1009 int idx; 1010 { 1011 struct sk_rx_desc *r; 1012 struct sk_rxdesc *rxd; 1013 struct mbuf *m; 1014 bus_dma_segment_t segs[1]; 1015 bus_dmamap_t map; 1016 int nsegs; 1017 1018 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUM9BYTES); 1019 if (m == NULL) 1020 return (ENOBUFS); 1021 m->m_pkthdr.len = m->m_len = MJUM9BYTES; 1022 /* 1023 * Adjust alignment so packet payload begins on a 1024 * longword boundary. Mandatory for Alpha, useful on 1025 * x86 too. 1026 */ 1027 m_adj(m, ETHER_ALIGN); 1028 1029 if (bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_jumbo_rx_tag, 1030 sc_if->sk_cdata.sk_jumbo_rx_sparemap, m, segs, &nsegs, 0) != 0) { 1031 m_freem(m); 1032 return (ENOBUFS); 1033 } 1034 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 1035 1036 rxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[idx]; 1037 if (rxd->rx_m != NULL) { 1038 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag, rxd->rx_dmamap, 1039 BUS_DMASYNC_POSTREAD); 1040 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_tag, 1041 rxd->rx_dmamap); 1042 } 1043 map = rxd->rx_dmamap; 1044 rxd->rx_dmamap = sc_if->sk_cdata.sk_jumbo_rx_sparemap; 1045 sc_if->sk_cdata.sk_jumbo_rx_sparemap = map; 1046 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag, rxd->rx_dmamap, 1047 BUS_DMASYNC_PREREAD); 1048 rxd->rx_m = m; 1049 r = &sc_if->sk_rdata.sk_jumbo_rx_ring[idx]; 1050 r->sk_data_lo = htole32(SK_ADDR_LO(segs[0].ds_addr)); 1051 r->sk_data_hi = htole32(SK_ADDR_HI(segs[0].ds_addr)); 1052 r->sk_ctl = htole32(segs[0].ds_len | SK_RXSTAT | SK_OPCODE_CSUM); 1053 1054 return (0); 1055 } 1056 1057 /* 1058 * Set media options. 1059 */ 1060 static int 1061 sk_ifmedia_upd(ifp) 1062 struct ifnet *ifp; 1063 { 1064 struct sk_if_softc *sc_if = ifp->if_softc; 1065 struct mii_data *mii; 1066 1067 mii = device_get_softc(sc_if->sk_miibus); 1068 sk_init(sc_if); 1069 mii_mediachg(mii); 1070 1071 return(0); 1072 } 1073 1074 /* 1075 * Report current media status. 1076 */ 1077 static void 1078 sk_ifmedia_sts(ifp, ifmr) 1079 struct ifnet *ifp; 1080 struct ifmediareq *ifmr; 1081 { 1082 struct sk_if_softc *sc_if; 1083 struct mii_data *mii; 1084 1085 sc_if = ifp->if_softc; 1086 mii = device_get_softc(sc_if->sk_miibus); 1087 1088 mii_pollstat(mii); 1089 ifmr->ifm_active = mii->mii_media_active; 1090 ifmr->ifm_status = mii->mii_media_status; 1091 1092 return; 1093 } 1094 1095 static int 1096 sk_ioctl(ifp, command, data) 1097 struct ifnet *ifp; 1098 u_long command; 1099 caddr_t data; 1100 { 1101 struct sk_if_softc *sc_if = ifp->if_softc; 1102 struct ifreq *ifr = (struct ifreq *) data; 1103 int error, mask; 1104 struct mii_data *mii; 1105 1106 error = 0; 1107 switch(command) { 1108 case SIOCSIFMTU: 1109 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > SK_JUMBO_MTU) 1110 error = EINVAL; 1111 else if (ifp->if_mtu != ifr->ifr_mtu) { 1112 if (sc_if->sk_jumbo_disable != 0 && 1113 ifr->ifr_mtu > SK_MAX_FRAMELEN) 1114 error = EINVAL; 1115 else { 1116 SK_IF_LOCK(sc_if); 1117 ifp->if_mtu = ifr->ifr_mtu; 1118 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1119 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1120 sk_init_locked(sc_if); 1121 } 1122 SK_IF_UNLOCK(sc_if); 1123 } 1124 } 1125 break; 1126 case SIOCSIFFLAGS: 1127 SK_IF_LOCK(sc_if); 1128 if (ifp->if_flags & IFF_UP) { 1129 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1130 if ((ifp->if_flags ^ sc_if->sk_if_flags) 1131 & (IFF_PROMISC | IFF_ALLMULTI)) 1132 sk_rxfilter(sc_if); 1133 } else 1134 sk_init_locked(sc_if); 1135 } else { 1136 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1137 sk_stop(sc_if); 1138 } 1139 sc_if->sk_if_flags = ifp->if_flags; 1140 SK_IF_UNLOCK(sc_if); 1141 break; 1142 case SIOCADDMULTI: 1143 case SIOCDELMULTI: 1144 SK_IF_LOCK(sc_if); 1145 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1146 sk_rxfilter(sc_if); 1147 SK_IF_UNLOCK(sc_if); 1148 break; 1149 case SIOCGIFMEDIA: 1150 case SIOCSIFMEDIA: 1151 mii = device_get_softc(sc_if->sk_miibus); 1152 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 1153 break; 1154 case SIOCSIFCAP: 1155 SK_IF_LOCK(sc_if); 1156 if (sc_if->sk_softc->sk_type == SK_GENESIS) { 1157 SK_IF_UNLOCK(sc_if); 1158 break; 1159 } 1160 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 1161 if ((mask & IFCAP_TXCSUM) != 0 && 1162 (IFCAP_TXCSUM & ifp->if_capabilities) != 0) { 1163 ifp->if_capenable ^= IFCAP_TXCSUM; 1164 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 1165 ifp->if_hwassist |= SK_CSUM_FEATURES; 1166 else 1167 ifp->if_hwassist &= ~SK_CSUM_FEATURES; 1168 } 1169 if ((mask & IFCAP_RXCSUM) != 0 && 1170 (IFCAP_RXCSUM & ifp->if_capabilities) != 0) 1171 ifp->if_capenable ^= IFCAP_RXCSUM; 1172 SK_IF_UNLOCK(sc_if); 1173 break; 1174 default: 1175 error = ether_ioctl(ifp, command, data); 1176 break; 1177 } 1178 1179 return (error); 1180 } 1181 1182 /* 1183 * Probe for a SysKonnect GEnesis chip. Check the PCI vendor and device 1184 * IDs against our list and return a device name if we find a match. 1185 */ 1186 static int 1187 skc_probe(dev) 1188 device_t dev; 1189 { 1190 const struct sk_type *t = sk_devs; 1191 1192 while(t->sk_name != NULL) { 1193 if ((pci_get_vendor(dev) == t->sk_vid) && 1194 (pci_get_device(dev) == t->sk_did)) { 1195 /* 1196 * Only attach to rev. 2 of the Linksys EG1032 adapter. 1197 * Rev. 3 is supported by re(4). 1198 */ 1199 if ((t->sk_vid == VENDORID_LINKSYS) && 1200 (t->sk_did == DEVICEID_LINKSYS_EG1032) && 1201 (pci_get_subdevice(dev) != 1202 SUBDEVICEID_LINKSYS_EG1032_REV2)) { 1203 t++; 1204 continue; 1205 } 1206 device_set_desc(dev, t->sk_name); 1207 return (BUS_PROBE_DEFAULT); 1208 } 1209 t++; 1210 } 1211 1212 return(ENXIO); 1213 } 1214 1215 /* 1216 * Force the GEnesis into reset, then bring it out of reset. 1217 */ 1218 static void 1219 sk_reset(sc) 1220 struct sk_softc *sc; 1221 { 1222 1223 CSR_WRITE_2(sc, SK_CSR, SK_CSR_SW_RESET); 1224 CSR_WRITE_2(sc, SK_CSR, SK_CSR_MASTER_RESET); 1225 if (SK_YUKON_FAMILY(sc->sk_type)) 1226 CSR_WRITE_2(sc, SK_LINK_CTRL, SK_LINK_RESET_SET); 1227 1228 DELAY(1000); 1229 CSR_WRITE_2(sc, SK_CSR, SK_CSR_SW_UNRESET); 1230 DELAY(2); 1231 CSR_WRITE_2(sc, SK_CSR, SK_CSR_MASTER_UNRESET); 1232 if (SK_YUKON_FAMILY(sc->sk_type)) 1233 CSR_WRITE_2(sc, SK_LINK_CTRL, SK_LINK_RESET_CLEAR); 1234 1235 if (sc->sk_type == SK_GENESIS) { 1236 /* Configure packet arbiter */ 1237 sk_win_write_2(sc, SK_PKTARB_CTL, SK_PKTARBCTL_UNRESET); 1238 sk_win_write_2(sc, SK_RXPA1_TINIT, SK_PKTARB_TIMEOUT); 1239 sk_win_write_2(sc, SK_TXPA1_TINIT, SK_PKTARB_TIMEOUT); 1240 sk_win_write_2(sc, SK_RXPA2_TINIT, SK_PKTARB_TIMEOUT); 1241 sk_win_write_2(sc, SK_TXPA2_TINIT, SK_PKTARB_TIMEOUT); 1242 } 1243 1244 /* Enable RAM interface */ 1245 sk_win_write_4(sc, SK_RAMCTL, SK_RAMCTL_UNRESET); 1246 1247 /* 1248 * Configure interrupt moderation. The moderation timer 1249 * defers interrupts specified in the interrupt moderation 1250 * timer mask based on the timeout specified in the interrupt 1251 * moderation timer init register. Each bit in the timer 1252 * register represents one tick, so to specify a timeout in 1253 * microseconds, we have to multiply by the correct number of 1254 * ticks-per-microsecond. 1255 */ 1256 switch (sc->sk_type) { 1257 case SK_GENESIS: 1258 sc->sk_int_ticks = SK_IMTIMER_TICKS_GENESIS; 1259 break; 1260 default: 1261 sc->sk_int_ticks = SK_IMTIMER_TICKS_YUKON; 1262 break; 1263 } 1264 if (bootverbose) 1265 device_printf(sc->sk_dev, "interrupt moderation is %d us\n", 1266 sc->sk_int_mod); 1267 sk_win_write_4(sc, SK_IMTIMERINIT, SK_IM_USECS(sc->sk_int_mod, 1268 sc->sk_int_ticks)); 1269 sk_win_write_4(sc, SK_IMMR, SK_ISR_TX1_S_EOF|SK_ISR_TX2_S_EOF| 1270 SK_ISR_RX1_EOF|SK_ISR_RX2_EOF); 1271 sk_win_write_1(sc, SK_IMTIMERCTL, SK_IMCTL_START); 1272 1273 return; 1274 } 1275 1276 static int 1277 sk_probe(dev) 1278 device_t dev; 1279 { 1280 struct sk_softc *sc; 1281 1282 sc = device_get_softc(device_get_parent(dev)); 1283 1284 /* 1285 * Not much to do here. We always know there will be 1286 * at least one XMAC present, and if there are two, 1287 * skc_attach() will create a second device instance 1288 * for us. 1289 */ 1290 switch (sc->sk_type) { 1291 case SK_GENESIS: 1292 device_set_desc(dev, "XaQti Corp. XMAC II"); 1293 break; 1294 case SK_YUKON: 1295 case SK_YUKON_LITE: 1296 case SK_YUKON_LP: 1297 device_set_desc(dev, "Marvell Semiconductor, Inc. Yukon"); 1298 break; 1299 } 1300 1301 return (BUS_PROBE_DEFAULT); 1302 } 1303 1304 /* 1305 * Each XMAC chip is attached as a separate logical IP interface. 1306 * Single port cards will have only one logical interface of course. 1307 */ 1308 static int 1309 sk_attach(dev) 1310 device_t dev; 1311 { 1312 struct sk_softc *sc; 1313 struct sk_if_softc *sc_if; 1314 struct ifnet *ifp; 1315 u_int32_t r; 1316 int error, i, phy, port; 1317 u_char eaddr[6]; 1318 u_char inv_mac[] = {0, 0, 0, 0, 0, 0}; 1319 1320 if (dev == NULL) 1321 return(EINVAL); 1322 1323 error = 0; 1324 sc_if = device_get_softc(dev); 1325 sc = device_get_softc(device_get_parent(dev)); 1326 port = *(int *)device_get_ivars(dev); 1327 1328 sc_if->sk_if_dev = dev; 1329 sc_if->sk_port = port; 1330 sc_if->sk_softc = sc; 1331 sc->sk_if[port] = sc_if; 1332 if (port == SK_PORT_A) 1333 sc_if->sk_tx_bmu = SK_BMU_TXS_CSR0; 1334 if (port == SK_PORT_B) 1335 sc_if->sk_tx_bmu = SK_BMU_TXS_CSR1; 1336 1337 callout_init_mtx(&sc_if->sk_tick_ch, &sc_if->sk_softc->sk_mtx, 0); 1338 callout_init_mtx(&sc_if->sk_watchdog_ch, &sc_if->sk_softc->sk_mtx, 0); 1339 1340 if (sk_dma_alloc(sc_if) != 0) { 1341 error = ENOMEM; 1342 goto fail; 1343 } 1344 sk_dma_jumbo_alloc(sc_if); 1345 1346 ifp = sc_if->sk_ifp = if_alloc(IFT_ETHER); 1347 if (ifp == NULL) { 1348 device_printf(sc_if->sk_if_dev, "can not if_alloc()\n"); 1349 error = ENOSPC; 1350 goto fail; 1351 } 1352 ifp->if_softc = sc_if; 1353 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 1354 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1355 /* 1356 * SK_GENESIS has a bug in checksum offload - From linux. 1357 */ 1358 if (sc_if->sk_softc->sk_type != SK_GENESIS) { 1359 ifp->if_capabilities = IFCAP_TXCSUM | IFCAP_RXCSUM; 1360 ifp->if_hwassist = 0; 1361 } else { 1362 ifp->if_capabilities = 0; 1363 ifp->if_hwassist = 0; 1364 } 1365 ifp->if_capenable = ifp->if_capabilities; 1366 /* 1367 * Some revision of Yukon controller generates corrupted 1368 * frame when TX checksum offloading is enabled. The 1369 * frame has a valid checksum value so payload might be 1370 * modified during TX checksum calculation. Disable TX 1371 * checksum offloading but give users chance to enable it 1372 * when they know their controller works without problems 1373 * with TX checksum offloading. 1374 */ 1375 ifp->if_capenable &= ~IFCAP_TXCSUM; 1376 ifp->if_ioctl = sk_ioctl; 1377 ifp->if_start = sk_start; 1378 ifp->if_init = sk_init; 1379 IFQ_SET_MAXLEN(&ifp->if_snd, SK_TX_RING_CNT - 1); 1380 ifp->if_snd.ifq_drv_maxlen = SK_TX_RING_CNT - 1; 1381 IFQ_SET_READY(&ifp->if_snd); 1382 1383 /* 1384 * Get station address for this interface. Note that 1385 * dual port cards actually come with three station 1386 * addresses: one for each port, plus an extra. The 1387 * extra one is used by the SysKonnect driver software 1388 * as a 'virtual' station address for when both ports 1389 * are operating in failover mode. Currently we don't 1390 * use this extra address. 1391 */ 1392 SK_IF_LOCK(sc_if); 1393 for (i = 0; i < ETHER_ADDR_LEN; i++) 1394 eaddr[i] = 1395 sk_win_read_1(sc, SK_MAC0_0 + (port * 8) + i); 1396 1397 /* Verify whether the station address is invalid or not. */ 1398 if (bcmp(eaddr, inv_mac, sizeof(inv_mac)) == 0) { 1399 device_printf(sc_if->sk_if_dev, 1400 "Generating random ethernet address\n"); 1401 r = arc4random(); 1402 /* 1403 * Set OUI to convenient locally assigned address. 'b' 1404 * is 0x62, which has the locally assigned bit set, and 1405 * the broadcast/multicast bit clear. 1406 */ 1407 eaddr[0] = 'b'; 1408 eaddr[1] = 's'; 1409 eaddr[2] = 'd'; 1410 eaddr[3] = (r >> 16) & 0xff; 1411 eaddr[4] = (r >> 8) & 0xff; 1412 eaddr[5] = (r >> 0) & 0xff; 1413 } 1414 /* 1415 * Set up RAM buffer addresses. The NIC will have a certain 1416 * amount of SRAM on it, somewhere between 512K and 2MB. We 1417 * need to divide this up a) between the transmitter and 1418 * receiver and b) between the two XMACs, if this is a 1419 * dual port NIC. Our algotithm is to divide up the memory 1420 * evenly so that everyone gets a fair share. 1421 * 1422 * Just to be contrary, Yukon2 appears to have separate memory 1423 * for each MAC. 1424 */ 1425 if (sk_win_read_1(sc, SK_CONFIG) & SK_CONFIG_SINGLEMAC) { 1426 u_int32_t chunk, val; 1427 1428 chunk = sc->sk_ramsize / 2; 1429 val = sc->sk_rboff / sizeof(u_int64_t); 1430 sc_if->sk_rx_ramstart = val; 1431 val += (chunk / sizeof(u_int64_t)); 1432 sc_if->sk_rx_ramend = val - 1; 1433 sc_if->sk_tx_ramstart = val; 1434 val += (chunk / sizeof(u_int64_t)); 1435 sc_if->sk_tx_ramend = val - 1; 1436 } else { 1437 u_int32_t chunk, val; 1438 1439 chunk = sc->sk_ramsize / 4; 1440 val = (sc->sk_rboff + (chunk * 2 * sc_if->sk_port)) / 1441 sizeof(u_int64_t); 1442 sc_if->sk_rx_ramstart = val; 1443 val += (chunk / sizeof(u_int64_t)); 1444 sc_if->sk_rx_ramend = val - 1; 1445 sc_if->sk_tx_ramstart = val; 1446 val += (chunk / sizeof(u_int64_t)); 1447 sc_if->sk_tx_ramend = val - 1; 1448 } 1449 1450 /* Read and save PHY type and set PHY address */ 1451 sc_if->sk_phytype = sk_win_read_1(sc, SK_EPROM1) & 0xF; 1452 if (!SK_YUKON_FAMILY(sc->sk_type)) { 1453 switch(sc_if->sk_phytype) { 1454 case SK_PHYTYPE_XMAC: 1455 sc_if->sk_phyaddr = SK_PHYADDR_XMAC; 1456 break; 1457 case SK_PHYTYPE_BCOM: 1458 sc_if->sk_phyaddr = SK_PHYADDR_BCOM; 1459 break; 1460 default: 1461 device_printf(sc->sk_dev, "unsupported PHY type: %d\n", 1462 sc_if->sk_phytype); 1463 error = ENODEV; 1464 SK_IF_UNLOCK(sc_if); 1465 goto fail; 1466 } 1467 } else { 1468 if (sc_if->sk_phytype < SK_PHYTYPE_MARV_COPPER && 1469 sc->sk_pmd != 'S') { 1470 /* not initialized, punt */ 1471 sc_if->sk_phytype = SK_PHYTYPE_MARV_COPPER; 1472 sc->sk_coppertype = 1; 1473 } 1474 1475 sc_if->sk_phyaddr = SK_PHYADDR_MARV; 1476 1477 if (!(sc->sk_coppertype)) 1478 sc_if->sk_phytype = SK_PHYTYPE_MARV_FIBER; 1479 } 1480 1481 /* 1482 * Call MI attach routine. Can't hold locks when calling into ether_*. 1483 */ 1484 SK_IF_UNLOCK(sc_if); 1485 ether_ifattach(ifp, eaddr); 1486 SK_IF_LOCK(sc_if); 1487 1488 /* 1489 * The hardware should be ready for VLAN_MTU by default: 1490 * XMAC II has 0x8100 in VLAN Tag Level 1 register initially; 1491 * YU_SMR_MFL_VLAN is set by this driver in Yukon. 1492 * 1493 */ 1494 ifp->if_capabilities |= IFCAP_VLAN_MTU; 1495 ifp->if_capenable |= IFCAP_VLAN_MTU; 1496 /* 1497 * Tell the upper layer(s) we support long frames. 1498 * Must appear after the call to ether_ifattach() because 1499 * ether_ifattach() sets ifi_hdrlen to the default value. 1500 */ 1501 ifp->if_hdrlen = sizeof(struct ether_vlan_header); 1502 1503 /* 1504 * Do miibus setup. 1505 */ 1506 phy = MII_PHY_ANY; 1507 switch (sc->sk_type) { 1508 case SK_GENESIS: 1509 sk_init_xmac(sc_if); 1510 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC) 1511 phy = 0; 1512 break; 1513 case SK_YUKON: 1514 case SK_YUKON_LITE: 1515 case SK_YUKON_LP: 1516 sk_init_yukon(sc_if); 1517 phy = 0; 1518 break; 1519 } 1520 1521 SK_IF_UNLOCK(sc_if); 1522 error = mii_attach(dev, &sc_if->sk_miibus, ifp, sk_ifmedia_upd, 1523 sk_ifmedia_sts, BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, 0); 1524 if (error != 0) { 1525 device_printf(sc_if->sk_if_dev, "attaching PHYs failed\n"); 1526 ether_ifdetach(ifp); 1527 goto fail; 1528 } 1529 1530 fail: 1531 if (error) { 1532 /* Access should be ok even though lock has been dropped */ 1533 sc->sk_if[port] = NULL; 1534 sk_detach(dev); 1535 } 1536 1537 return(error); 1538 } 1539 1540 /* 1541 * Attach the interface. Allocate softc structures, do ifmedia 1542 * setup and ethernet/BPF attach. 1543 */ 1544 static int 1545 skc_attach(dev) 1546 device_t dev; 1547 { 1548 struct sk_softc *sc; 1549 int error = 0, *port; 1550 uint8_t skrs; 1551 const char *pname = NULL; 1552 char *revstr; 1553 1554 sc = device_get_softc(dev); 1555 sc->sk_dev = dev; 1556 1557 mtx_init(&sc->sk_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 1558 MTX_DEF); 1559 mtx_init(&sc->sk_mii_mtx, "sk_mii_mutex", NULL, MTX_DEF); 1560 /* 1561 * Map control/status registers. 1562 */ 1563 pci_enable_busmaster(dev); 1564 1565 /* Allocate resources */ 1566 #ifdef SK_USEIOSPACE 1567 sc->sk_res_spec = sk_res_spec_io; 1568 #else 1569 sc->sk_res_spec = sk_res_spec_mem; 1570 #endif 1571 error = bus_alloc_resources(dev, sc->sk_res_spec, sc->sk_res); 1572 if (error) { 1573 if (sc->sk_res_spec == sk_res_spec_mem) 1574 sc->sk_res_spec = sk_res_spec_io; 1575 else 1576 sc->sk_res_spec = sk_res_spec_mem; 1577 error = bus_alloc_resources(dev, sc->sk_res_spec, sc->sk_res); 1578 if (error) { 1579 device_printf(dev, "couldn't allocate %s resources\n", 1580 sc->sk_res_spec == sk_res_spec_mem ? "memory" : 1581 "I/O"); 1582 goto fail; 1583 } 1584 } 1585 1586 sc->sk_type = sk_win_read_1(sc, SK_CHIPVER); 1587 sc->sk_rev = (sk_win_read_1(sc, SK_CONFIG) >> 4) & 0xf; 1588 1589 /* Bail out if chip is not recognized. */ 1590 if (sc->sk_type != SK_GENESIS && !SK_YUKON_FAMILY(sc->sk_type)) { 1591 device_printf(dev, "unknown device: chipver=%02x, rev=%x\n", 1592 sc->sk_type, sc->sk_rev); 1593 error = ENXIO; 1594 goto fail; 1595 } 1596 1597 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 1598 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 1599 OID_AUTO, "int_mod", CTLTYPE_INT|CTLFLAG_RW, 1600 &sc->sk_int_mod, 0, sysctl_hw_sk_int_mod, "I", 1601 "SK interrupt moderation"); 1602 1603 /* Pull in device tunables. */ 1604 sc->sk_int_mod = SK_IM_DEFAULT; 1605 error = resource_int_value(device_get_name(dev), device_get_unit(dev), 1606 "int_mod", &sc->sk_int_mod); 1607 if (error == 0) { 1608 if (sc->sk_int_mod < SK_IM_MIN || 1609 sc->sk_int_mod > SK_IM_MAX) { 1610 device_printf(dev, "int_mod value out of range; " 1611 "using default: %d\n", SK_IM_DEFAULT); 1612 sc->sk_int_mod = SK_IM_DEFAULT; 1613 } 1614 } 1615 1616 /* Reset the adapter. */ 1617 sk_reset(sc); 1618 1619 skrs = sk_win_read_1(sc, SK_EPROM0); 1620 if (sc->sk_type == SK_GENESIS) { 1621 /* Read and save RAM size and RAMbuffer offset */ 1622 switch(skrs) { 1623 case SK_RAMSIZE_512K_64: 1624 sc->sk_ramsize = 0x80000; 1625 sc->sk_rboff = SK_RBOFF_0; 1626 break; 1627 case SK_RAMSIZE_1024K_64: 1628 sc->sk_ramsize = 0x100000; 1629 sc->sk_rboff = SK_RBOFF_80000; 1630 break; 1631 case SK_RAMSIZE_1024K_128: 1632 sc->sk_ramsize = 0x100000; 1633 sc->sk_rboff = SK_RBOFF_0; 1634 break; 1635 case SK_RAMSIZE_2048K_128: 1636 sc->sk_ramsize = 0x200000; 1637 sc->sk_rboff = SK_RBOFF_0; 1638 break; 1639 default: 1640 device_printf(dev, "unknown ram size: %d\n", skrs); 1641 error = ENXIO; 1642 goto fail; 1643 } 1644 } else { /* SK_YUKON_FAMILY */ 1645 if (skrs == 0x00) 1646 sc->sk_ramsize = 0x20000; 1647 else 1648 sc->sk_ramsize = skrs * (1<<12); 1649 sc->sk_rboff = SK_RBOFF_0; 1650 } 1651 1652 /* Read and save physical media type */ 1653 sc->sk_pmd = sk_win_read_1(sc, SK_PMDTYPE); 1654 1655 if (sc->sk_pmd == 'T' || sc->sk_pmd == '1') 1656 sc->sk_coppertype = 1; 1657 else 1658 sc->sk_coppertype = 0; 1659 1660 /* Determine whether to name it with VPD PN or just make it up. 1661 * Marvell Yukon VPD PN seems to freqently be bogus. */ 1662 switch (pci_get_device(dev)) { 1663 case DEVICEID_SK_V1: 1664 case DEVICEID_BELKIN_5005: 1665 case DEVICEID_3COM_3C940: 1666 case DEVICEID_LINKSYS_EG1032: 1667 case DEVICEID_DLINK_DGE530T_A1: 1668 case DEVICEID_DLINK_DGE530T_B1: 1669 /* Stay with VPD PN. */ 1670 (void) pci_get_vpd_ident(dev, &pname); 1671 break; 1672 case DEVICEID_SK_V2: 1673 /* YUKON VPD PN might bear no resemblance to reality. */ 1674 switch (sc->sk_type) { 1675 case SK_GENESIS: 1676 /* Stay with VPD PN. */ 1677 (void) pci_get_vpd_ident(dev, &pname); 1678 break; 1679 case SK_YUKON: 1680 pname = "Marvell Yukon Gigabit Ethernet"; 1681 break; 1682 case SK_YUKON_LITE: 1683 pname = "Marvell Yukon Lite Gigabit Ethernet"; 1684 break; 1685 case SK_YUKON_LP: 1686 pname = "Marvell Yukon LP Gigabit Ethernet"; 1687 break; 1688 default: 1689 pname = "Marvell Yukon (Unknown) Gigabit Ethernet"; 1690 break; 1691 } 1692 1693 /* Yukon Lite Rev. A0 needs special test. */ 1694 if (sc->sk_type == SK_YUKON || sc->sk_type == SK_YUKON_LP) { 1695 u_int32_t far; 1696 u_int8_t testbyte; 1697 1698 /* Save flash address register before testing. */ 1699 far = sk_win_read_4(sc, SK_EP_ADDR); 1700 1701 sk_win_write_1(sc, SK_EP_ADDR+0x03, 0xff); 1702 testbyte = sk_win_read_1(sc, SK_EP_ADDR+0x03); 1703 1704 if (testbyte != 0x00) { 1705 /* Yukon Lite Rev. A0 detected. */ 1706 sc->sk_type = SK_YUKON_LITE; 1707 sc->sk_rev = SK_YUKON_LITE_REV_A0; 1708 /* Restore flash address register. */ 1709 sk_win_write_4(sc, SK_EP_ADDR, far); 1710 } 1711 } 1712 break; 1713 default: 1714 device_printf(dev, "unknown device: vendor=%04x, device=%04x, " 1715 "chipver=%02x, rev=%x\n", 1716 pci_get_vendor(dev), pci_get_device(dev), 1717 sc->sk_type, sc->sk_rev); 1718 error = ENXIO; 1719 goto fail; 1720 } 1721 1722 if (sc->sk_type == SK_YUKON_LITE) { 1723 switch (sc->sk_rev) { 1724 case SK_YUKON_LITE_REV_A0: 1725 revstr = "A0"; 1726 break; 1727 case SK_YUKON_LITE_REV_A1: 1728 revstr = "A1"; 1729 break; 1730 case SK_YUKON_LITE_REV_A3: 1731 revstr = "A3"; 1732 break; 1733 default: 1734 revstr = ""; 1735 break; 1736 } 1737 } else { 1738 revstr = ""; 1739 } 1740 1741 /* Announce the product name and more VPD data if there. */ 1742 if (pname != NULL) 1743 device_printf(dev, "%s rev. %s(0x%x)\n", 1744 pname, revstr, sc->sk_rev); 1745 1746 if (bootverbose) { 1747 device_printf(dev, "chip ver = 0x%02x\n", sc->sk_type); 1748 device_printf(dev, "chip rev = 0x%02x\n", sc->sk_rev); 1749 device_printf(dev, "SK_EPROM0 = 0x%02x\n", skrs); 1750 device_printf(dev, "SRAM size = 0x%06x\n", sc->sk_ramsize); 1751 } 1752 1753 sc->sk_devs[SK_PORT_A] = device_add_child(dev, "sk", -1); 1754 if (sc->sk_devs[SK_PORT_A] == NULL) { 1755 device_printf(dev, "failed to add child for PORT_A\n"); 1756 error = ENXIO; 1757 goto fail; 1758 } 1759 port = malloc(sizeof(int), M_DEVBUF, M_NOWAIT); 1760 if (port == NULL) { 1761 device_printf(dev, "failed to allocate memory for " 1762 "ivars of PORT_A\n"); 1763 error = ENXIO; 1764 goto fail; 1765 } 1766 *port = SK_PORT_A; 1767 device_set_ivars(sc->sk_devs[SK_PORT_A], port); 1768 1769 if (!(sk_win_read_1(sc, SK_CONFIG) & SK_CONFIG_SINGLEMAC)) { 1770 sc->sk_devs[SK_PORT_B] = device_add_child(dev, "sk", -1); 1771 if (sc->sk_devs[SK_PORT_B] == NULL) { 1772 device_printf(dev, "failed to add child for PORT_B\n"); 1773 error = ENXIO; 1774 goto fail; 1775 } 1776 port = malloc(sizeof(int), M_DEVBUF, M_NOWAIT); 1777 if (port == NULL) { 1778 device_printf(dev, "failed to allocate memory for " 1779 "ivars of PORT_B\n"); 1780 error = ENXIO; 1781 goto fail; 1782 } 1783 *port = SK_PORT_B; 1784 device_set_ivars(sc->sk_devs[SK_PORT_B], port); 1785 } 1786 1787 /* Turn on the 'driver is loaded' LED. */ 1788 CSR_WRITE_2(sc, SK_LED, SK_LED_GREEN_ON); 1789 1790 error = bus_generic_attach(dev); 1791 if (error) { 1792 device_printf(dev, "failed to attach port(s)\n"); 1793 goto fail; 1794 } 1795 1796 /* Hook interrupt last to avoid having to lock softc */ 1797 error = bus_setup_intr(dev, sc->sk_res[1], INTR_TYPE_NET|INTR_MPSAFE, 1798 NULL, sk_intr, sc, &sc->sk_intrhand); 1799 1800 if (error) { 1801 device_printf(dev, "couldn't set up irq\n"); 1802 goto fail; 1803 } 1804 1805 fail: 1806 if (error) 1807 skc_detach(dev); 1808 1809 return(error); 1810 } 1811 1812 /* 1813 * Shutdown hardware and free up resources. This can be called any 1814 * time after the mutex has been initialized. It is called in both 1815 * the error case in attach and the normal detach case so it needs 1816 * to be careful about only freeing resources that have actually been 1817 * allocated. 1818 */ 1819 static int 1820 sk_detach(dev) 1821 device_t dev; 1822 { 1823 struct sk_if_softc *sc_if; 1824 struct ifnet *ifp; 1825 1826 sc_if = device_get_softc(dev); 1827 KASSERT(mtx_initialized(&sc_if->sk_softc->sk_mtx), 1828 ("sk mutex not initialized in sk_detach")); 1829 SK_IF_LOCK(sc_if); 1830 1831 ifp = sc_if->sk_ifp; 1832 /* These should only be active if attach_xmac succeeded */ 1833 if (device_is_attached(dev)) { 1834 sk_stop(sc_if); 1835 /* Can't hold locks while calling detach */ 1836 SK_IF_UNLOCK(sc_if); 1837 callout_drain(&sc_if->sk_tick_ch); 1838 callout_drain(&sc_if->sk_watchdog_ch); 1839 ether_ifdetach(ifp); 1840 SK_IF_LOCK(sc_if); 1841 } 1842 /* 1843 * We're generally called from skc_detach() which is using 1844 * device_delete_child() to get to here. It's already trashed 1845 * miibus for us, so don't do it here or we'll panic. 1846 */ 1847 /* 1848 if (sc_if->sk_miibus != NULL) 1849 device_delete_child(dev, sc_if->sk_miibus); 1850 */ 1851 bus_generic_detach(dev); 1852 sk_dma_jumbo_free(sc_if); 1853 sk_dma_free(sc_if); 1854 SK_IF_UNLOCK(sc_if); 1855 if (ifp) 1856 if_free(ifp); 1857 1858 return(0); 1859 } 1860 1861 static int 1862 skc_detach(dev) 1863 device_t dev; 1864 { 1865 struct sk_softc *sc; 1866 1867 sc = device_get_softc(dev); 1868 KASSERT(mtx_initialized(&sc->sk_mtx), ("sk mutex not initialized")); 1869 1870 if (device_is_alive(dev)) { 1871 if (sc->sk_devs[SK_PORT_A] != NULL) { 1872 free(device_get_ivars(sc->sk_devs[SK_PORT_A]), M_DEVBUF); 1873 device_delete_child(dev, sc->sk_devs[SK_PORT_A]); 1874 } 1875 if (sc->sk_devs[SK_PORT_B] != NULL) { 1876 free(device_get_ivars(sc->sk_devs[SK_PORT_B]), M_DEVBUF); 1877 device_delete_child(dev, sc->sk_devs[SK_PORT_B]); 1878 } 1879 bus_generic_detach(dev); 1880 } 1881 1882 if (sc->sk_intrhand) 1883 bus_teardown_intr(dev, sc->sk_res[1], sc->sk_intrhand); 1884 bus_release_resources(dev, sc->sk_res_spec, sc->sk_res); 1885 1886 mtx_destroy(&sc->sk_mii_mtx); 1887 mtx_destroy(&sc->sk_mtx); 1888 1889 return(0); 1890 } 1891 1892 static bus_dma_tag_t 1893 skc_get_dma_tag(device_t bus, device_t child __unused) 1894 { 1895 1896 return (bus_get_dma_tag(bus)); 1897 } 1898 1899 struct sk_dmamap_arg { 1900 bus_addr_t sk_busaddr; 1901 }; 1902 1903 static void 1904 sk_dmamap_cb(arg, segs, nseg, error) 1905 void *arg; 1906 bus_dma_segment_t *segs; 1907 int nseg; 1908 int error; 1909 { 1910 struct sk_dmamap_arg *ctx; 1911 1912 if (error != 0) 1913 return; 1914 1915 ctx = arg; 1916 ctx->sk_busaddr = segs[0].ds_addr; 1917 } 1918 1919 /* 1920 * Allocate jumbo buffer storage. The SysKonnect adapters support 1921 * "jumbograms" (9K frames), although SysKonnect doesn't currently 1922 * use them in their drivers. In order for us to use them, we need 1923 * large 9K receive buffers, however standard mbuf clusters are only 1924 * 2048 bytes in size. Consequently, we need to allocate and manage 1925 * our own jumbo buffer pool. Fortunately, this does not require an 1926 * excessive amount of additional code. 1927 */ 1928 static int 1929 sk_dma_alloc(sc_if) 1930 struct sk_if_softc *sc_if; 1931 { 1932 struct sk_dmamap_arg ctx; 1933 struct sk_txdesc *txd; 1934 struct sk_rxdesc *rxd; 1935 int error, i; 1936 1937 /* create parent tag */ 1938 /* 1939 * XXX 1940 * This driver should use BUS_SPACE_MAXADDR for lowaddr argument 1941 * in bus_dma_tag_create(9) as the NIC would support DAC mode. 1942 * However bz@ reported that it does not work on amd64 with > 4GB 1943 * RAM. Until we have more clues of the breakage, disable DAC mode 1944 * by limiting DMA address to be in 32bit address space. 1945 */ 1946 error = bus_dma_tag_create( 1947 bus_get_dma_tag(sc_if->sk_if_dev),/* parent */ 1948 1, 0, /* algnmnt, boundary */ 1949 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1950 BUS_SPACE_MAXADDR, /* highaddr */ 1951 NULL, NULL, /* filter, filterarg */ 1952 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 1953 0, /* nsegments */ 1954 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1955 0, /* flags */ 1956 NULL, NULL, /* lockfunc, lockarg */ 1957 &sc_if->sk_cdata.sk_parent_tag); 1958 if (error != 0) { 1959 device_printf(sc_if->sk_if_dev, 1960 "failed to create parent DMA tag\n"); 1961 goto fail; 1962 } 1963 1964 /* create tag for Tx ring */ 1965 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 1966 SK_RING_ALIGN, 0, /* algnmnt, boundary */ 1967 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1968 BUS_SPACE_MAXADDR, /* highaddr */ 1969 NULL, NULL, /* filter, filterarg */ 1970 SK_TX_RING_SZ, /* maxsize */ 1971 1, /* nsegments */ 1972 SK_TX_RING_SZ, /* maxsegsize */ 1973 0, /* flags */ 1974 NULL, NULL, /* lockfunc, lockarg */ 1975 &sc_if->sk_cdata.sk_tx_ring_tag); 1976 if (error != 0) { 1977 device_printf(sc_if->sk_if_dev, 1978 "failed to allocate Tx ring DMA tag\n"); 1979 goto fail; 1980 } 1981 1982 /* create tag for Rx ring */ 1983 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 1984 SK_RING_ALIGN, 0, /* algnmnt, boundary */ 1985 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1986 BUS_SPACE_MAXADDR, /* highaddr */ 1987 NULL, NULL, /* filter, filterarg */ 1988 SK_RX_RING_SZ, /* maxsize */ 1989 1, /* nsegments */ 1990 SK_RX_RING_SZ, /* maxsegsize */ 1991 0, /* flags */ 1992 NULL, NULL, /* lockfunc, lockarg */ 1993 &sc_if->sk_cdata.sk_rx_ring_tag); 1994 if (error != 0) { 1995 device_printf(sc_if->sk_if_dev, 1996 "failed to allocate Rx ring DMA tag\n"); 1997 goto fail; 1998 } 1999 2000 /* create tag for Tx buffers */ 2001 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 2002 1, 0, /* algnmnt, boundary */ 2003 BUS_SPACE_MAXADDR, /* lowaddr */ 2004 BUS_SPACE_MAXADDR, /* highaddr */ 2005 NULL, NULL, /* filter, filterarg */ 2006 MCLBYTES * SK_MAXTXSEGS, /* maxsize */ 2007 SK_MAXTXSEGS, /* nsegments */ 2008 MCLBYTES, /* maxsegsize */ 2009 0, /* flags */ 2010 NULL, NULL, /* lockfunc, lockarg */ 2011 &sc_if->sk_cdata.sk_tx_tag); 2012 if (error != 0) { 2013 device_printf(sc_if->sk_if_dev, 2014 "failed to allocate Tx DMA tag\n"); 2015 goto fail; 2016 } 2017 2018 /* create tag for Rx buffers */ 2019 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 2020 1, 0, /* algnmnt, boundary */ 2021 BUS_SPACE_MAXADDR, /* lowaddr */ 2022 BUS_SPACE_MAXADDR, /* highaddr */ 2023 NULL, NULL, /* filter, filterarg */ 2024 MCLBYTES, /* maxsize */ 2025 1, /* nsegments */ 2026 MCLBYTES, /* maxsegsize */ 2027 0, /* flags */ 2028 NULL, NULL, /* lockfunc, lockarg */ 2029 &sc_if->sk_cdata.sk_rx_tag); 2030 if (error != 0) { 2031 device_printf(sc_if->sk_if_dev, 2032 "failed to allocate Rx DMA tag\n"); 2033 goto fail; 2034 } 2035 2036 /* allocate DMA'able memory and load the DMA map for Tx ring */ 2037 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_tx_ring_tag, 2038 (void **)&sc_if->sk_rdata.sk_tx_ring, BUS_DMA_NOWAIT | 2039 BUS_DMA_COHERENT | BUS_DMA_ZERO, &sc_if->sk_cdata.sk_tx_ring_map); 2040 if (error != 0) { 2041 device_printf(sc_if->sk_if_dev, 2042 "failed to allocate DMA'able memory for Tx ring\n"); 2043 goto fail; 2044 } 2045 2046 ctx.sk_busaddr = 0; 2047 error = bus_dmamap_load(sc_if->sk_cdata.sk_tx_ring_tag, 2048 sc_if->sk_cdata.sk_tx_ring_map, sc_if->sk_rdata.sk_tx_ring, 2049 SK_TX_RING_SZ, sk_dmamap_cb, &ctx, BUS_DMA_NOWAIT); 2050 if (error != 0) { 2051 device_printf(sc_if->sk_if_dev, 2052 "failed to load DMA'able memory for Tx ring\n"); 2053 goto fail; 2054 } 2055 sc_if->sk_rdata.sk_tx_ring_paddr = ctx.sk_busaddr; 2056 2057 /* allocate DMA'able memory and load the DMA map for Rx ring */ 2058 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_rx_ring_tag, 2059 (void **)&sc_if->sk_rdata.sk_rx_ring, BUS_DMA_NOWAIT | 2060 BUS_DMA_COHERENT | BUS_DMA_ZERO, &sc_if->sk_cdata.sk_rx_ring_map); 2061 if (error != 0) { 2062 device_printf(sc_if->sk_if_dev, 2063 "failed to allocate DMA'able memory for Rx ring\n"); 2064 goto fail; 2065 } 2066 2067 ctx.sk_busaddr = 0; 2068 error = bus_dmamap_load(sc_if->sk_cdata.sk_rx_ring_tag, 2069 sc_if->sk_cdata.sk_rx_ring_map, sc_if->sk_rdata.sk_rx_ring, 2070 SK_RX_RING_SZ, sk_dmamap_cb, &ctx, BUS_DMA_NOWAIT); 2071 if (error != 0) { 2072 device_printf(sc_if->sk_if_dev, 2073 "failed to load DMA'able memory for Rx ring\n"); 2074 goto fail; 2075 } 2076 sc_if->sk_rdata.sk_rx_ring_paddr = ctx.sk_busaddr; 2077 2078 /* create DMA maps for Tx buffers */ 2079 for (i = 0; i < SK_TX_RING_CNT; i++) { 2080 txd = &sc_if->sk_cdata.sk_txdesc[i]; 2081 txd->tx_m = NULL; 2082 txd->tx_dmamap = NULL; 2083 error = bus_dmamap_create(sc_if->sk_cdata.sk_tx_tag, 0, 2084 &txd->tx_dmamap); 2085 if (error != 0) { 2086 device_printf(sc_if->sk_if_dev, 2087 "failed to create Tx dmamap\n"); 2088 goto fail; 2089 } 2090 } 2091 2092 /* create DMA maps for Rx buffers */ 2093 if ((error = bus_dmamap_create(sc_if->sk_cdata.sk_rx_tag, 0, 2094 &sc_if->sk_cdata.sk_rx_sparemap)) != 0) { 2095 device_printf(sc_if->sk_if_dev, 2096 "failed to create spare Rx dmamap\n"); 2097 goto fail; 2098 } 2099 for (i = 0; i < SK_RX_RING_CNT; i++) { 2100 rxd = &sc_if->sk_cdata.sk_rxdesc[i]; 2101 rxd->rx_m = NULL; 2102 rxd->rx_dmamap = NULL; 2103 error = bus_dmamap_create(sc_if->sk_cdata.sk_rx_tag, 0, 2104 &rxd->rx_dmamap); 2105 if (error != 0) { 2106 device_printf(sc_if->sk_if_dev, 2107 "failed to create Rx dmamap\n"); 2108 goto fail; 2109 } 2110 } 2111 2112 fail: 2113 return (error); 2114 } 2115 2116 static int 2117 sk_dma_jumbo_alloc(sc_if) 2118 struct sk_if_softc *sc_if; 2119 { 2120 struct sk_dmamap_arg ctx; 2121 struct sk_rxdesc *jrxd; 2122 int error, i; 2123 2124 if (jumbo_disable != 0) { 2125 device_printf(sc_if->sk_if_dev, "disabling jumbo frame support\n"); 2126 sc_if->sk_jumbo_disable = 1; 2127 return (0); 2128 } 2129 /* create tag for jumbo Rx ring */ 2130 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 2131 SK_RING_ALIGN, 0, /* algnmnt, boundary */ 2132 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 2133 BUS_SPACE_MAXADDR, /* highaddr */ 2134 NULL, NULL, /* filter, filterarg */ 2135 SK_JUMBO_RX_RING_SZ, /* maxsize */ 2136 1, /* nsegments */ 2137 SK_JUMBO_RX_RING_SZ, /* maxsegsize */ 2138 0, /* flags */ 2139 NULL, NULL, /* lockfunc, lockarg */ 2140 &sc_if->sk_cdata.sk_jumbo_rx_ring_tag); 2141 if (error != 0) { 2142 device_printf(sc_if->sk_if_dev, 2143 "failed to allocate jumbo Rx ring DMA tag\n"); 2144 goto jumbo_fail; 2145 } 2146 2147 /* create tag for jumbo Rx buffers */ 2148 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 2149 1, 0, /* algnmnt, boundary */ 2150 BUS_SPACE_MAXADDR, /* lowaddr */ 2151 BUS_SPACE_MAXADDR, /* highaddr */ 2152 NULL, NULL, /* filter, filterarg */ 2153 MJUM9BYTES, /* maxsize */ 2154 1, /* nsegments */ 2155 MJUM9BYTES, /* maxsegsize */ 2156 0, /* flags */ 2157 NULL, NULL, /* lockfunc, lockarg */ 2158 &sc_if->sk_cdata.sk_jumbo_rx_tag); 2159 if (error != 0) { 2160 device_printf(sc_if->sk_if_dev, 2161 "failed to allocate jumbo Rx DMA tag\n"); 2162 goto jumbo_fail; 2163 } 2164 2165 /* allocate DMA'able memory and load the DMA map for jumbo Rx ring */ 2166 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2167 (void **)&sc_if->sk_rdata.sk_jumbo_rx_ring, BUS_DMA_NOWAIT | 2168 BUS_DMA_COHERENT | BUS_DMA_ZERO, 2169 &sc_if->sk_cdata.sk_jumbo_rx_ring_map); 2170 if (error != 0) { 2171 device_printf(sc_if->sk_if_dev, 2172 "failed to allocate DMA'able memory for jumbo Rx ring\n"); 2173 goto jumbo_fail; 2174 } 2175 2176 ctx.sk_busaddr = 0; 2177 error = bus_dmamap_load(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2178 sc_if->sk_cdata.sk_jumbo_rx_ring_map, 2179 sc_if->sk_rdata.sk_jumbo_rx_ring, SK_JUMBO_RX_RING_SZ, sk_dmamap_cb, 2180 &ctx, BUS_DMA_NOWAIT); 2181 if (error != 0) { 2182 device_printf(sc_if->sk_if_dev, 2183 "failed to load DMA'able memory for jumbo Rx ring\n"); 2184 goto jumbo_fail; 2185 } 2186 sc_if->sk_rdata.sk_jumbo_rx_ring_paddr = ctx.sk_busaddr; 2187 2188 /* create DMA maps for jumbo Rx buffers */ 2189 if ((error = bus_dmamap_create(sc_if->sk_cdata.sk_jumbo_rx_tag, 0, 2190 &sc_if->sk_cdata.sk_jumbo_rx_sparemap)) != 0) { 2191 device_printf(sc_if->sk_if_dev, 2192 "failed to create spare jumbo Rx dmamap\n"); 2193 goto jumbo_fail; 2194 } 2195 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) { 2196 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[i]; 2197 jrxd->rx_m = NULL; 2198 jrxd->rx_dmamap = NULL; 2199 error = bus_dmamap_create(sc_if->sk_cdata.sk_jumbo_rx_tag, 0, 2200 &jrxd->rx_dmamap); 2201 if (error != 0) { 2202 device_printf(sc_if->sk_if_dev, 2203 "failed to create jumbo Rx dmamap\n"); 2204 goto jumbo_fail; 2205 } 2206 } 2207 2208 return (0); 2209 2210 jumbo_fail: 2211 sk_dma_jumbo_free(sc_if); 2212 device_printf(sc_if->sk_if_dev, "disabling jumbo frame support due to " 2213 "resource shortage\n"); 2214 sc_if->sk_jumbo_disable = 1; 2215 return (0); 2216 } 2217 2218 static void 2219 sk_dma_free(sc_if) 2220 struct sk_if_softc *sc_if; 2221 { 2222 struct sk_txdesc *txd; 2223 struct sk_rxdesc *rxd; 2224 int i; 2225 2226 /* Tx ring */ 2227 if (sc_if->sk_cdata.sk_tx_ring_tag) { 2228 if (sc_if->sk_rdata.sk_tx_ring_paddr) 2229 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_ring_tag, 2230 sc_if->sk_cdata.sk_tx_ring_map); 2231 if (sc_if->sk_rdata.sk_tx_ring) 2232 bus_dmamem_free(sc_if->sk_cdata.sk_tx_ring_tag, 2233 sc_if->sk_rdata.sk_tx_ring, 2234 sc_if->sk_cdata.sk_tx_ring_map); 2235 sc_if->sk_rdata.sk_tx_ring = NULL; 2236 sc_if->sk_rdata.sk_tx_ring_paddr = 0; 2237 bus_dma_tag_destroy(sc_if->sk_cdata.sk_tx_ring_tag); 2238 sc_if->sk_cdata.sk_tx_ring_tag = NULL; 2239 } 2240 /* Rx ring */ 2241 if (sc_if->sk_cdata.sk_rx_ring_tag) { 2242 if (sc_if->sk_rdata.sk_rx_ring_paddr) 2243 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_ring_tag, 2244 sc_if->sk_cdata.sk_rx_ring_map); 2245 if (sc_if->sk_rdata.sk_rx_ring) 2246 bus_dmamem_free(sc_if->sk_cdata.sk_rx_ring_tag, 2247 sc_if->sk_rdata.sk_rx_ring, 2248 sc_if->sk_cdata.sk_rx_ring_map); 2249 sc_if->sk_rdata.sk_rx_ring = NULL; 2250 sc_if->sk_rdata.sk_rx_ring_paddr = 0; 2251 bus_dma_tag_destroy(sc_if->sk_cdata.sk_rx_ring_tag); 2252 sc_if->sk_cdata.sk_rx_ring_tag = NULL; 2253 } 2254 /* Tx buffers */ 2255 if (sc_if->sk_cdata.sk_tx_tag) { 2256 for (i = 0; i < SK_TX_RING_CNT; i++) { 2257 txd = &sc_if->sk_cdata.sk_txdesc[i]; 2258 if (txd->tx_dmamap) { 2259 bus_dmamap_destroy(sc_if->sk_cdata.sk_tx_tag, 2260 txd->tx_dmamap); 2261 txd->tx_dmamap = NULL; 2262 } 2263 } 2264 bus_dma_tag_destroy(sc_if->sk_cdata.sk_tx_tag); 2265 sc_if->sk_cdata.sk_tx_tag = NULL; 2266 } 2267 /* Rx buffers */ 2268 if (sc_if->sk_cdata.sk_rx_tag) { 2269 for (i = 0; i < SK_RX_RING_CNT; i++) { 2270 rxd = &sc_if->sk_cdata.sk_rxdesc[i]; 2271 if (rxd->rx_dmamap) { 2272 bus_dmamap_destroy(sc_if->sk_cdata.sk_rx_tag, 2273 rxd->rx_dmamap); 2274 rxd->rx_dmamap = NULL; 2275 } 2276 } 2277 if (sc_if->sk_cdata.sk_rx_sparemap) { 2278 bus_dmamap_destroy(sc_if->sk_cdata.sk_rx_tag, 2279 sc_if->sk_cdata.sk_rx_sparemap); 2280 sc_if->sk_cdata.sk_rx_sparemap = NULL; 2281 } 2282 bus_dma_tag_destroy(sc_if->sk_cdata.sk_rx_tag); 2283 sc_if->sk_cdata.sk_rx_tag = NULL; 2284 } 2285 2286 if (sc_if->sk_cdata.sk_parent_tag) { 2287 bus_dma_tag_destroy(sc_if->sk_cdata.sk_parent_tag); 2288 sc_if->sk_cdata.sk_parent_tag = NULL; 2289 } 2290 } 2291 2292 static void 2293 sk_dma_jumbo_free(sc_if) 2294 struct sk_if_softc *sc_if; 2295 { 2296 struct sk_rxdesc *jrxd; 2297 int i; 2298 2299 /* jumbo Rx ring */ 2300 if (sc_if->sk_cdata.sk_jumbo_rx_ring_tag) { 2301 if (sc_if->sk_rdata.sk_jumbo_rx_ring_paddr) 2302 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2303 sc_if->sk_cdata.sk_jumbo_rx_ring_map); 2304 if (sc_if->sk_rdata.sk_jumbo_rx_ring) 2305 bus_dmamem_free(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2306 sc_if->sk_rdata.sk_jumbo_rx_ring, 2307 sc_if->sk_cdata.sk_jumbo_rx_ring_map); 2308 sc_if->sk_rdata.sk_jumbo_rx_ring = NULL; 2309 sc_if->sk_rdata.sk_jumbo_rx_ring_paddr = 0; 2310 bus_dma_tag_destroy(sc_if->sk_cdata.sk_jumbo_rx_ring_tag); 2311 sc_if->sk_cdata.sk_jumbo_rx_ring_tag = NULL; 2312 } 2313 2314 /* jumbo Rx buffers */ 2315 if (sc_if->sk_cdata.sk_jumbo_rx_tag) { 2316 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) { 2317 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[i]; 2318 if (jrxd->rx_dmamap) { 2319 bus_dmamap_destroy( 2320 sc_if->sk_cdata.sk_jumbo_rx_tag, 2321 jrxd->rx_dmamap); 2322 jrxd->rx_dmamap = NULL; 2323 } 2324 } 2325 if (sc_if->sk_cdata.sk_jumbo_rx_sparemap) { 2326 bus_dmamap_destroy(sc_if->sk_cdata.sk_jumbo_rx_tag, 2327 sc_if->sk_cdata.sk_jumbo_rx_sparemap); 2328 sc_if->sk_cdata.sk_jumbo_rx_sparemap = NULL; 2329 } 2330 bus_dma_tag_destroy(sc_if->sk_cdata.sk_jumbo_rx_tag); 2331 sc_if->sk_cdata.sk_jumbo_rx_tag = NULL; 2332 } 2333 } 2334 2335 static void 2336 sk_txcksum(ifp, m, f) 2337 struct ifnet *ifp; 2338 struct mbuf *m; 2339 struct sk_tx_desc *f; 2340 { 2341 struct ip *ip; 2342 u_int16_t offset; 2343 u_int8_t *p; 2344 2345 offset = sizeof(struct ip) + ETHER_HDR_LEN; 2346 for(; m && m->m_len == 0; m = m->m_next) 2347 ; 2348 if (m == NULL || m->m_len < ETHER_HDR_LEN) { 2349 if_printf(ifp, "%s: m_len < ETHER_HDR_LEN\n", __func__); 2350 /* checksum may be corrupted */ 2351 goto sendit; 2352 } 2353 if (m->m_len < ETHER_HDR_LEN + sizeof(u_int32_t)) { 2354 if (m->m_len != ETHER_HDR_LEN) { 2355 if_printf(ifp, "%s: m_len != ETHER_HDR_LEN\n", 2356 __func__); 2357 /* checksum may be corrupted */ 2358 goto sendit; 2359 } 2360 for(m = m->m_next; m && m->m_len == 0; m = m->m_next) 2361 ; 2362 if (m == NULL) { 2363 offset = sizeof(struct ip) + ETHER_HDR_LEN; 2364 /* checksum may be corrupted */ 2365 goto sendit; 2366 } 2367 ip = mtod(m, struct ip *); 2368 } else { 2369 p = mtod(m, u_int8_t *); 2370 p += ETHER_HDR_LEN; 2371 ip = (struct ip *)p; 2372 } 2373 offset = (ip->ip_hl << 2) + ETHER_HDR_LEN; 2374 2375 sendit: 2376 f->sk_csum_startval = 0; 2377 f->sk_csum_start = htole32(((offset + m->m_pkthdr.csum_data) & 0xffff) | 2378 (offset << 16)); 2379 } 2380 2381 static int 2382 sk_encap(sc_if, m_head) 2383 struct sk_if_softc *sc_if; 2384 struct mbuf **m_head; 2385 { 2386 struct sk_txdesc *txd; 2387 struct sk_tx_desc *f = NULL; 2388 struct mbuf *m; 2389 bus_dma_segment_t txsegs[SK_MAXTXSEGS]; 2390 u_int32_t cflags, frag, si, sk_ctl; 2391 int error, i, nseg; 2392 2393 SK_IF_LOCK_ASSERT(sc_if); 2394 2395 if ((txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txfreeq)) == NULL) 2396 return (ENOBUFS); 2397 2398 error = bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_tx_tag, 2399 txd->tx_dmamap, *m_head, txsegs, &nseg, 0); 2400 if (error == EFBIG) { 2401 m = m_defrag(*m_head, M_NOWAIT); 2402 if (m == NULL) { 2403 m_freem(*m_head); 2404 *m_head = NULL; 2405 return (ENOMEM); 2406 } 2407 *m_head = m; 2408 error = bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_tx_tag, 2409 txd->tx_dmamap, *m_head, txsegs, &nseg, 0); 2410 if (error != 0) { 2411 m_freem(*m_head); 2412 *m_head = NULL; 2413 return (error); 2414 } 2415 } else if (error != 0) 2416 return (error); 2417 if (nseg == 0) { 2418 m_freem(*m_head); 2419 *m_head = NULL; 2420 return (EIO); 2421 } 2422 if (sc_if->sk_cdata.sk_tx_cnt + nseg >= SK_TX_RING_CNT) { 2423 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap); 2424 return (ENOBUFS); 2425 } 2426 2427 m = *m_head; 2428 if ((m->m_pkthdr.csum_flags & sc_if->sk_ifp->if_hwassist) != 0) 2429 cflags = SK_OPCODE_CSUM; 2430 else 2431 cflags = SK_OPCODE_DEFAULT; 2432 si = frag = sc_if->sk_cdata.sk_tx_prod; 2433 for (i = 0; i < nseg; i++) { 2434 f = &sc_if->sk_rdata.sk_tx_ring[frag]; 2435 f->sk_data_lo = htole32(SK_ADDR_LO(txsegs[i].ds_addr)); 2436 f->sk_data_hi = htole32(SK_ADDR_HI(txsegs[i].ds_addr)); 2437 sk_ctl = txsegs[i].ds_len | cflags; 2438 if (i == 0) { 2439 if (cflags == SK_OPCODE_CSUM) 2440 sk_txcksum(sc_if->sk_ifp, m, f); 2441 sk_ctl |= SK_TXCTL_FIRSTFRAG; 2442 } else 2443 sk_ctl |= SK_TXCTL_OWN; 2444 f->sk_ctl = htole32(sk_ctl); 2445 sc_if->sk_cdata.sk_tx_cnt++; 2446 SK_INC(frag, SK_TX_RING_CNT); 2447 } 2448 sc_if->sk_cdata.sk_tx_prod = frag; 2449 2450 /* set EOF on the last desciptor */ 2451 frag = (frag + SK_TX_RING_CNT - 1) % SK_TX_RING_CNT; 2452 f = &sc_if->sk_rdata.sk_tx_ring[frag]; 2453 f->sk_ctl |= htole32(SK_TXCTL_LASTFRAG | SK_TXCTL_EOF_INTR); 2454 2455 /* turn the first descriptor ownership to NIC */ 2456 f = &sc_if->sk_rdata.sk_tx_ring[si]; 2457 f->sk_ctl |= htole32(SK_TXCTL_OWN); 2458 2459 STAILQ_REMOVE_HEAD(&sc_if->sk_cdata.sk_txfreeq, tx_q); 2460 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txbusyq, txd, tx_q); 2461 txd->tx_m = m; 2462 2463 /* sync descriptors */ 2464 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap, 2465 BUS_DMASYNC_PREWRITE); 2466 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag, 2467 sc_if->sk_cdata.sk_tx_ring_map, 2468 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2469 2470 return (0); 2471 } 2472 2473 static void 2474 sk_start(ifp) 2475 struct ifnet *ifp; 2476 { 2477 struct sk_if_softc *sc_if; 2478 2479 sc_if = ifp->if_softc; 2480 2481 SK_IF_LOCK(sc_if); 2482 sk_start_locked(ifp); 2483 SK_IF_UNLOCK(sc_if); 2484 2485 return; 2486 } 2487 2488 static void 2489 sk_start_locked(ifp) 2490 struct ifnet *ifp; 2491 { 2492 struct sk_softc *sc; 2493 struct sk_if_softc *sc_if; 2494 struct mbuf *m_head; 2495 int enq; 2496 2497 sc_if = ifp->if_softc; 2498 sc = sc_if->sk_softc; 2499 2500 SK_IF_LOCK_ASSERT(sc_if); 2501 2502 for (enq = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd) && 2503 sc_if->sk_cdata.sk_tx_cnt < SK_TX_RING_CNT - 1; ) { 2504 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); 2505 if (m_head == NULL) 2506 break; 2507 2508 /* 2509 * Pack the data into the transmit ring. If we 2510 * don't have room, set the OACTIVE flag and wait 2511 * for the NIC to drain the ring. 2512 */ 2513 if (sk_encap(sc_if, &m_head)) { 2514 if (m_head == NULL) 2515 break; 2516 IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 2517 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2518 break; 2519 } 2520 2521 enq++; 2522 /* 2523 * If there's a BPF listener, bounce a copy of this frame 2524 * to him. 2525 */ 2526 BPF_MTAP(ifp, m_head); 2527 } 2528 2529 if (enq > 0) { 2530 /* Transmit */ 2531 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_START); 2532 2533 /* Set a timeout in case the chip goes out to lunch. */ 2534 sc_if->sk_watchdog_timer = 5; 2535 } 2536 } 2537 2538 2539 static void 2540 sk_watchdog(arg) 2541 void *arg; 2542 { 2543 struct sk_if_softc *sc_if; 2544 struct ifnet *ifp; 2545 2546 ifp = arg; 2547 sc_if = ifp->if_softc; 2548 2549 SK_IF_LOCK_ASSERT(sc_if); 2550 2551 if (sc_if->sk_watchdog_timer == 0 || --sc_if->sk_watchdog_timer) 2552 goto done; 2553 2554 /* 2555 * Reclaim first as there is a possibility of losing Tx completion 2556 * interrupts. 2557 */ 2558 sk_txeof(sc_if); 2559 if (sc_if->sk_cdata.sk_tx_cnt != 0) { 2560 if_printf(sc_if->sk_ifp, "watchdog timeout\n"); 2561 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 2562 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 2563 sk_init_locked(sc_if); 2564 } 2565 2566 done: 2567 callout_reset(&sc_if->sk_watchdog_ch, hz, sk_watchdog, ifp); 2568 2569 return; 2570 } 2571 2572 static int 2573 skc_shutdown(dev) 2574 device_t dev; 2575 { 2576 struct sk_softc *sc; 2577 2578 sc = device_get_softc(dev); 2579 SK_LOCK(sc); 2580 2581 /* Turn off the 'driver is loaded' LED. */ 2582 CSR_WRITE_2(sc, SK_LED, SK_LED_GREEN_OFF); 2583 2584 /* 2585 * Reset the GEnesis controller. Doing this should also 2586 * assert the resets on the attached XMAC(s). 2587 */ 2588 sk_reset(sc); 2589 SK_UNLOCK(sc); 2590 2591 return (0); 2592 } 2593 2594 static int 2595 skc_suspend(dev) 2596 device_t dev; 2597 { 2598 struct sk_softc *sc; 2599 struct sk_if_softc *sc_if0, *sc_if1; 2600 struct ifnet *ifp0 = NULL, *ifp1 = NULL; 2601 2602 sc = device_get_softc(dev); 2603 2604 SK_LOCK(sc); 2605 2606 sc_if0 = sc->sk_if[SK_PORT_A]; 2607 sc_if1 = sc->sk_if[SK_PORT_B]; 2608 if (sc_if0 != NULL) 2609 ifp0 = sc_if0->sk_ifp; 2610 if (sc_if1 != NULL) 2611 ifp1 = sc_if1->sk_ifp; 2612 if (ifp0 != NULL) 2613 sk_stop(sc_if0); 2614 if (ifp1 != NULL) 2615 sk_stop(sc_if1); 2616 sc->sk_suspended = 1; 2617 2618 SK_UNLOCK(sc); 2619 2620 return (0); 2621 } 2622 2623 static int 2624 skc_resume(dev) 2625 device_t dev; 2626 { 2627 struct sk_softc *sc; 2628 struct sk_if_softc *sc_if0, *sc_if1; 2629 struct ifnet *ifp0 = NULL, *ifp1 = NULL; 2630 2631 sc = device_get_softc(dev); 2632 2633 SK_LOCK(sc); 2634 2635 sc_if0 = sc->sk_if[SK_PORT_A]; 2636 sc_if1 = sc->sk_if[SK_PORT_B]; 2637 if (sc_if0 != NULL) 2638 ifp0 = sc_if0->sk_ifp; 2639 if (sc_if1 != NULL) 2640 ifp1 = sc_if1->sk_ifp; 2641 if (ifp0 != NULL && ifp0->if_flags & IFF_UP) 2642 sk_init_locked(sc_if0); 2643 if (ifp1 != NULL && ifp1->if_flags & IFF_UP) 2644 sk_init_locked(sc_if1); 2645 sc->sk_suspended = 0; 2646 2647 SK_UNLOCK(sc); 2648 2649 return (0); 2650 } 2651 2652 /* 2653 * According to the data sheet from SK-NET GENESIS the hardware can compute 2654 * two Rx checksums at the same time(Each checksum start position is 2655 * programmed in Rx descriptors). However it seems that TCP/UDP checksum 2656 * does not work at least on my Yukon hardware. I tried every possible ways 2657 * to get correct checksum value but couldn't get correct one. So TCP/UDP 2658 * checksum offload was disabled at the moment and only IP checksum offload 2659 * was enabled. 2660 * As nomral IP header size is 20 bytes I can't expect it would give an 2661 * increase in throughput. However it seems it doesn't hurt performance in 2662 * my testing. If there is a more detailed information for checksum secret 2663 * of the hardware in question please contact yongari@FreeBSD.org to add 2664 * TCP/UDP checksum offload support. 2665 */ 2666 static __inline void 2667 sk_rxcksum(ifp, m, csum) 2668 struct ifnet *ifp; 2669 struct mbuf *m; 2670 u_int32_t csum; 2671 { 2672 struct ether_header *eh; 2673 struct ip *ip; 2674 int32_t hlen, len, pktlen; 2675 u_int16_t csum1, csum2, ipcsum; 2676 2677 pktlen = m->m_pkthdr.len; 2678 if (pktlen < sizeof(struct ether_header) + sizeof(struct ip)) 2679 return; 2680 eh = mtod(m, struct ether_header *); 2681 if (eh->ether_type != htons(ETHERTYPE_IP)) 2682 return; 2683 ip = (struct ip *)(eh + 1); 2684 if (ip->ip_v != IPVERSION) 2685 return; 2686 hlen = ip->ip_hl << 2; 2687 pktlen -= sizeof(struct ether_header); 2688 if (hlen < sizeof(struct ip)) 2689 return; 2690 if (ntohs(ip->ip_len) < hlen) 2691 return; 2692 if (ntohs(ip->ip_len) != pktlen) 2693 return; 2694 2695 csum1 = htons(csum & 0xffff); 2696 csum2 = htons((csum >> 16) & 0xffff); 2697 ipcsum = in_addword(csum1, ~csum2 & 0xffff); 2698 /* checksum fixup for IP options */ 2699 len = hlen - sizeof(struct ip); 2700 if (len > 0) { 2701 /* 2702 * If the second checksum value is correct we can compute IP 2703 * checksum with simple math. Unfortunately the second checksum 2704 * value is wrong so we can't verify the checksum from the 2705 * value(It seems there is some magic here to get correct 2706 * value). If the second checksum value is correct it also 2707 * means we can get TCP/UDP checksum) here. However, it still 2708 * needs pseudo header checksum calculation due to hardware 2709 * limitations. 2710 */ 2711 return; 2712 } 2713 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2714 if (ipcsum == 0xffff) 2715 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2716 } 2717 2718 static __inline int 2719 sk_rxvalid(sc, stat, len) 2720 struct sk_softc *sc; 2721 u_int32_t stat, len; 2722 { 2723 2724 if (sc->sk_type == SK_GENESIS) { 2725 if ((stat & XM_RXSTAT_ERRFRAME) == XM_RXSTAT_ERRFRAME || 2726 XM_RXSTAT_BYTES(stat) != len) 2727 return (0); 2728 } else { 2729 if ((stat & (YU_RXSTAT_CRCERR | YU_RXSTAT_LONGERR | 2730 YU_RXSTAT_MIIERR | YU_RXSTAT_BADFC | YU_RXSTAT_GOODFC | 2731 YU_RXSTAT_JABBER)) != 0 || 2732 (stat & YU_RXSTAT_RXOK) != YU_RXSTAT_RXOK || 2733 YU_RXSTAT_BYTES(stat) != len) 2734 return (0); 2735 } 2736 2737 return (1); 2738 } 2739 2740 static void 2741 sk_rxeof(sc_if) 2742 struct sk_if_softc *sc_if; 2743 { 2744 struct sk_softc *sc; 2745 struct mbuf *m; 2746 struct ifnet *ifp; 2747 struct sk_rx_desc *cur_rx; 2748 struct sk_rxdesc *rxd; 2749 int cons, prog; 2750 u_int32_t csum, rxstat, sk_ctl; 2751 2752 sc = sc_if->sk_softc; 2753 ifp = sc_if->sk_ifp; 2754 2755 SK_IF_LOCK_ASSERT(sc_if); 2756 2757 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag, 2758 sc_if->sk_cdata.sk_rx_ring_map, BUS_DMASYNC_POSTREAD); 2759 2760 prog = 0; 2761 for (cons = sc_if->sk_cdata.sk_rx_cons; prog < SK_RX_RING_CNT; 2762 prog++, SK_INC(cons, SK_RX_RING_CNT)) { 2763 cur_rx = &sc_if->sk_rdata.sk_rx_ring[cons]; 2764 sk_ctl = le32toh(cur_rx->sk_ctl); 2765 if ((sk_ctl & SK_RXCTL_OWN) != 0) 2766 break; 2767 rxd = &sc_if->sk_cdata.sk_rxdesc[cons]; 2768 rxstat = le32toh(cur_rx->sk_xmac_rxstat); 2769 2770 if ((sk_ctl & (SK_RXCTL_STATUS_VALID | SK_RXCTL_FIRSTFRAG | 2771 SK_RXCTL_LASTFRAG)) != (SK_RXCTL_STATUS_VALID | 2772 SK_RXCTL_FIRSTFRAG | SK_RXCTL_LASTFRAG) || 2773 SK_RXBYTES(sk_ctl) < SK_MIN_FRAMELEN || 2774 SK_RXBYTES(sk_ctl) > SK_MAX_FRAMELEN || 2775 sk_rxvalid(sc, rxstat, SK_RXBYTES(sk_ctl)) == 0) { 2776 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2777 sk_discard_rxbuf(sc_if, cons); 2778 continue; 2779 } 2780 2781 m = rxd->rx_m; 2782 csum = le32toh(cur_rx->sk_csum); 2783 if (sk_newbuf(sc_if, cons) != 0) { 2784 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2785 /* reuse old buffer */ 2786 sk_discard_rxbuf(sc_if, cons); 2787 continue; 2788 } 2789 m->m_pkthdr.rcvif = ifp; 2790 m->m_pkthdr.len = m->m_len = SK_RXBYTES(sk_ctl); 2791 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 2792 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 2793 sk_rxcksum(ifp, m, csum); 2794 SK_IF_UNLOCK(sc_if); 2795 (*ifp->if_input)(ifp, m); 2796 SK_IF_LOCK(sc_if); 2797 } 2798 2799 if (prog > 0) { 2800 sc_if->sk_cdata.sk_rx_cons = cons; 2801 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag, 2802 sc_if->sk_cdata.sk_rx_ring_map, 2803 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2804 } 2805 } 2806 2807 static void 2808 sk_jumbo_rxeof(sc_if) 2809 struct sk_if_softc *sc_if; 2810 { 2811 struct sk_softc *sc; 2812 struct mbuf *m; 2813 struct ifnet *ifp; 2814 struct sk_rx_desc *cur_rx; 2815 struct sk_rxdesc *jrxd; 2816 int cons, prog; 2817 u_int32_t csum, rxstat, sk_ctl; 2818 2819 sc = sc_if->sk_softc; 2820 ifp = sc_if->sk_ifp; 2821 2822 SK_IF_LOCK_ASSERT(sc_if); 2823 2824 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2825 sc_if->sk_cdata.sk_jumbo_rx_ring_map, BUS_DMASYNC_POSTREAD); 2826 2827 prog = 0; 2828 for (cons = sc_if->sk_cdata.sk_jumbo_rx_cons; 2829 prog < SK_JUMBO_RX_RING_CNT; 2830 prog++, SK_INC(cons, SK_JUMBO_RX_RING_CNT)) { 2831 cur_rx = &sc_if->sk_rdata.sk_jumbo_rx_ring[cons]; 2832 sk_ctl = le32toh(cur_rx->sk_ctl); 2833 if ((sk_ctl & SK_RXCTL_OWN) != 0) 2834 break; 2835 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[cons]; 2836 rxstat = le32toh(cur_rx->sk_xmac_rxstat); 2837 2838 if ((sk_ctl & (SK_RXCTL_STATUS_VALID | SK_RXCTL_FIRSTFRAG | 2839 SK_RXCTL_LASTFRAG)) != (SK_RXCTL_STATUS_VALID | 2840 SK_RXCTL_FIRSTFRAG | SK_RXCTL_LASTFRAG) || 2841 SK_RXBYTES(sk_ctl) < SK_MIN_FRAMELEN || 2842 SK_RXBYTES(sk_ctl) > SK_JUMBO_FRAMELEN || 2843 sk_rxvalid(sc, rxstat, SK_RXBYTES(sk_ctl)) == 0) { 2844 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2845 sk_discard_jumbo_rxbuf(sc_if, cons); 2846 continue; 2847 } 2848 2849 m = jrxd->rx_m; 2850 csum = le32toh(cur_rx->sk_csum); 2851 if (sk_jumbo_newbuf(sc_if, cons) != 0) { 2852 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2853 /* reuse old buffer */ 2854 sk_discard_jumbo_rxbuf(sc_if, cons); 2855 continue; 2856 } 2857 m->m_pkthdr.rcvif = ifp; 2858 m->m_pkthdr.len = m->m_len = SK_RXBYTES(sk_ctl); 2859 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 2860 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 2861 sk_rxcksum(ifp, m, csum); 2862 SK_IF_UNLOCK(sc_if); 2863 (*ifp->if_input)(ifp, m); 2864 SK_IF_LOCK(sc_if); 2865 } 2866 2867 if (prog > 0) { 2868 sc_if->sk_cdata.sk_jumbo_rx_cons = cons; 2869 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2870 sc_if->sk_cdata.sk_jumbo_rx_ring_map, 2871 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2872 } 2873 } 2874 2875 static void 2876 sk_txeof(sc_if) 2877 struct sk_if_softc *sc_if; 2878 { 2879 struct sk_txdesc *txd; 2880 struct sk_tx_desc *cur_tx; 2881 struct ifnet *ifp; 2882 u_int32_t idx, sk_ctl; 2883 2884 ifp = sc_if->sk_ifp; 2885 2886 txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txbusyq); 2887 if (txd == NULL) 2888 return; 2889 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag, 2890 sc_if->sk_cdata.sk_tx_ring_map, BUS_DMASYNC_POSTREAD); 2891 /* 2892 * Go through our tx ring and free mbufs for those 2893 * frames that have been sent. 2894 */ 2895 for (idx = sc_if->sk_cdata.sk_tx_cons;; SK_INC(idx, SK_TX_RING_CNT)) { 2896 if (sc_if->sk_cdata.sk_tx_cnt <= 0) 2897 break; 2898 cur_tx = &sc_if->sk_rdata.sk_tx_ring[idx]; 2899 sk_ctl = le32toh(cur_tx->sk_ctl); 2900 if (sk_ctl & SK_TXCTL_OWN) 2901 break; 2902 sc_if->sk_cdata.sk_tx_cnt--; 2903 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2904 if ((sk_ctl & SK_TXCTL_LASTFRAG) == 0) 2905 continue; 2906 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap, 2907 BUS_DMASYNC_POSTWRITE); 2908 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap); 2909 2910 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 2911 m_freem(txd->tx_m); 2912 txd->tx_m = NULL; 2913 STAILQ_REMOVE_HEAD(&sc_if->sk_cdata.sk_txbusyq, tx_q); 2914 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txfreeq, txd, tx_q); 2915 txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txbusyq); 2916 } 2917 sc_if->sk_cdata.sk_tx_cons = idx; 2918 sc_if->sk_watchdog_timer = sc_if->sk_cdata.sk_tx_cnt > 0 ? 5 : 0; 2919 2920 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag, 2921 sc_if->sk_cdata.sk_tx_ring_map, 2922 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2923 } 2924 2925 static void 2926 sk_tick(xsc_if) 2927 void *xsc_if; 2928 { 2929 struct sk_if_softc *sc_if; 2930 struct mii_data *mii; 2931 struct ifnet *ifp; 2932 int i; 2933 2934 sc_if = xsc_if; 2935 ifp = sc_if->sk_ifp; 2936 mii = device_get_softc(sc_if->sk_miibus); 2937 2938 if (!(ifp->if_flags & IFF_UP)) 2939 return; 2940 2941 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) { 2942 sk_intr_bcom(sc_if); 2943 return; 2944 } 2945 2946 /* 2947 * According to SysKonnect, the correct way to verify that 2948 * the link has come back up is to poll bit 0 of the GPIO 2949 * register three times. This pin has the signal from the 2950 * link_sync pin connected to it; if we read the same link 2951 * state 3 times in a row, we know the link is up. 2952 */ 2953 for (i = 0; i < 3; i++) { 2954 if (SK_XM_READ_2(sc_if, XM_GPIO) & XM_GPIO_GP0_SET) 2955 break; 2956 } 2957 2958 if (i != 3) { 2959 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if); 2960 return; 2961 } 2962 2963 /* Turn the GP0 interrupt back on. */ 2964 SK_XM_CLRBIT_2(sc_if, XM_IMR, XM_IMR_GP0_SET); 2965 SK_XM_READ_2(sc_if, XM_ISR); 2966 mii_tick(mii); 2967 callout_stop(&sc_if->sk_tick_ch); 2968 } 2969 2970 static void 2971 sk_yukon_tick(xsc_if) 2972 void *xsc_if; 2973 { 2974 struct sk_if_softc *sc_if; 2975 struct mii_data *mii; 2976 2977 sc_if = xsc_if; 2978 mii = device_get_softc(sc_if->sk_miibus); 2979 2980 mii_tick(mii); 2981 callout_reset(&sc_if->sk_tick_ch, hz, sk_yukon_tick, sc_if); 2982 } 2983 2984 static void 2985 sk_intr_bcom(sc_if) 2986 struct sk_if_softc *sc_if; 2987 { 2988 struct mii_data *mii; 2989 struct ifnet *ifp; 2990 int status; 2991 mii = device_get_softc(sc_if->sk_miibus); 2992 ifp = sc_if->sk_ifp; 2993 2994 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB); 2995 2996 /* 2997 * Read the PHY interrupt register to make sure 2998 * we clear any pending interrupts. 2999 */ 3000 status = sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM, BRGPHY_MII_ISR); 3001 3002 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 3003 sk_init_xmac(sc_if); 3004 return; 3005 } 3006 3007 if (status & (BRGPHY_ISR_LNK_CHG|BRGPHY_ISR_AN_PR)) { 3008 int lstat; 3009 lstat = sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM, 3010 BRGPHY_MII_AUXSTS); 3011 3012 if (!(lstat & BRGPHY_AUXSTS_LINK) && sc_if->sk_link) { 3013 mii_mediachg(mii); 3014 /* Turn off the link LED. */ 3015 SK_IF_WRITE_1(sc_if, 0, 3016 SK_LINKLED1_CTL, SK_LINKLED_OFF); 3017 sc_if->sk_link = 0; 3018 } else if (status & BRGPHY_ISR_LNK_CHG) { 3019 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM, 3020 BRGPHY_MII_IMR, 0xFF00); 3021 mii_tick(mii); 3022 sc_if->sk_link = 1; 3023 /* Turn on the link LED. */ 3024 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, 3025 SK_LINKLED_ON|SK_LINKLED_LINKSYNC_OFF| 3026 SK_LINKLED_BLINK_OFF); 3027 } else { 3028 mii_tick(mii); 3029 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if); 3030 } 3031 } 3032 3033 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB); 3034 3035 return; 3036 } 3037 3038 static void 3039 sk_intr_xmac(sc_if) 3040 struct sk_if_softc *sc_if; 3041 { 3042 struct sk_softc *sc; 3043 u_int16_t status; 3044 3045 sc = sc_if->sk_softc; 3046 status = SK_XM_READ_2(sc_if, XM_ISR); 3047 3048 /* 3049 * Link has gone down. Start MII tick timeout to 3050 * watch for link resync. 3051 */ 3052 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC) { 3053 if (status & XM_ISR_GP0_SET) { 3054 SK_XM_SETBIT_2(sc_if, XM_IMR, XM_IMR_GP0_SET); 3055 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if); 3056 } 3057 3058 if (status & XM_ISR_AUTONEG_DONE) { 3059 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if); 3060 } 3061 } 3062 3063 if (status & XM_IMR_TX_UNDERRUN) 3064 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_FLUSH_TXFIFO); 3065 3066 if (status & XM_IMR_RX_OVERRUN) 3067 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_FLUSH_RXFIFO); 3068 3069 status = SK_XM_READ_2(sc_if, XM_ISR); 3070 3071 return; 3072 } 3073 3074 static void 3075 sk_intr_yukon(sc_if) 3076 struct sk_if_softc *sc_if; 3077 { 3078 u_int8_t status; 3079 3080 status = SK_IF_READ_1(sc_if, 0, SK_GMAC_ISR); 3081 /* RX overrun */ 3082 if ((status & SK_GMAC_INT_RX_OVER) != 0) { 3083 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST, 3084 SK_RFCTL_RX_FIFO_OVER); 3085 } 3086 /* TX underrun */ 3087 if ((status & SK_GMAC_INT_TX_UNDER) != 0) { 3088 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST, 3089 SK_TFCTL_TX_FIFO_UNDER); 3090 } 3091 } 3092 3093 static void 3094 sk_intr(xsc) 3095 void *xsc; 3096 { 3097 struct sk_softc *sc = xsc; 3098 struct sk_if_softc *sc_if0, *sc_if1; 3099 struct ifnet *ifp0 = NULL, *ifp1 = NULL; 3100 u_int32_t status; 3101 3102 SK_LOCK(sc); 3103 3104 status = CSR_READ_4(sc, SK_ISSR); 3105 if (status == 0 || status == 0xffffffff || sc->sk_suspended) 3106 goto done_locked; 3107 3108 sc_if0 = sc->sk_if[SK_PORT_A]; 3109 sc_if1 = sc->sk_if[SK_PORT_B]; 3110 3111 if (sc_if0 != NULL) 3112 ifp0 = sc_if0->sk_ifp; 3113 if (sc_if1 != NULL) 3114 ifp1 = sc_if1->sk_ifp; 3115 3116 for (; (status &= sc->sk_intrmask) != 0;) { 3117 /* Handle receive interrupts first. */ 3118 if (status & SK_ISR_RX1_EOF) { 3119 if (ifp0->if_mtu > SK_MAX_FRAMELEN) 3120 sk_jumbo_rxeof(sc_if0); 3121 else 3122 sk_rxeof(sc_if0); 3123 CSR_WRITE_4(sc, SK_BMU_RX_CSR0, 3124 SK_RXBMU_CLR_IRQ_EOF|SK_RXBMU_RX_START); 3125 } 3126 if (status & SK_ISR_RX2_EOF) { 3127 if (ifp1->if_mtu > SK_MAX_FRAMELEN) 3128 sk_jumbo_rxeof(sc_if1); 3129 else 3130 sk_rxeof(sc_if1); 3131 CSR_WRITE_4(sc, SK_BMU_RX_CSR1, 3132 SK_RXBMU_CLR_IRQ_EOF|SK_RXBMU_RX_START); 3133 } 3134 3135 /* Then transmit interrupts. */ 3136 if (status & SK_ISR_TX1_S_EOF) { 3137 sk_txeof(sc_if0); 3138 CSR_WRITE_4(sc, SK_BMU_TXS_CSR0, SK_TXBMU_CLR_IRQ_EOF); 3139 } 3140 if (status & SK_ISR_TX2_S_EOF) { 3141 sk_txeof(sc_if1); 3142 CSR_WRITE_4(sc, SK_BMU_TXS_CSR1, SK_TXBMU_CLR_IRQ_EOF); 3143 } 3144 3145 /* Then MAC interrupts. */ 3146 if (status & SK_ISR_MAC1 && 3147 ifp0->if_drv_flags & IFF_DRV_RUNNING) { 3148 if (sc->sk_type == SK_GENESIS) 3149 sk_intr_xmac(sc_if0); 3150 else 3151 sk_intr_yukon(sc_if0); 3152 } 3153 3154 if (status & SK_ISR_MAC2 && 3155 ifp1->if_drv_flags & IFF_DRV_RUNNING) { 3156 if (sc->sk_type == SK_GENESIS) 3157 sk_intr_xmac(sc_if1); 3158 else 3159 sk_intr_yukon(sc_if1); 3160 } 3161 3162 if (status & SK_ISR_EXTERNAL_REG) { 3163 if (ifp0 != NULL && 3164 sc_if0->sk_phytype == SK_PHYTYPE_BCOM) 3165 sk_intr_bcom(sc_if0); 3166 if (ifp1 != NULL && 3167 sc_if1->sk_phytype == SK_PHYTYPE_BCOM) 3168 sk_intr_bcom(sc_if1); 3169 } 3170 status = CSR_READ_4(sc, SK_ISSR); 3171 } 3172 3173 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask); 3174 3175 if (ifp0 != NULL && !IFQ_DRV_IS_EMPTY(&ifp0->if_snd)) 3176 sk_start_locked(ifp0); 3177 if (ifp1 != NULL && !IFQ_DRV_IS_EMPTY(&ifp1->if_snd)) 3178 sk_start_locked(ifp1); 3179 3180 done_locked: 3181 SK_UNLOCK(sc); 3182 } 3183 3184 static void 3185 sk_init_xmac(sc_if) 3186 struct sk_if_softc *sc_if; 3187 { 3188 struct sk_softc *sc; 3189 struct ifnet *ifp; 3190 u_int16_t eaddr[(ETHER_ADDR_LEN+1)/2]; 3191 static const struct sk_bcom_hack bhack[] = { 3192 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, { 0x17, 0x0013 }, 3193 { 0x15, 0x0404 }, { 0x17, 0x8006 }, { 0x15, 0x0132 }, { 0x17, 0x8006 }, 3194 { 0x15, 0x0232 }, { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 }, 3195 { 0, 0 } }; 3196 3197 SK_IF_LOCK_ASSERT(sc_if); 3198 3199 sc = sc_if->sk_softc; 3200 ifp = sc_if->sk_ifp; 3201 3202 /* Unreset the XMAC. */ 3203 SK_IF_WRITE_2(sc_if, 0, SK_TXF1_MACCTL, SK_TXMACCTL_XMAC_UNRESET); 3204 DELAY(1000); 3205 3206 /* Reset the XMAC's internal state. */ 3207 SK_XM_SETBIT_2(sc_if, XM_GPIO, XM_GPIO_RESETMAC); 3208 3209 /* Save the XMAC II revision */ 3210 sc_if->sk_xmac_rev = XM_XMAC_REV(SK_XM_READ_4(sc_if, XM_DEVID)); 3211 3212 /* 3213 * Perform additional initialization for external PHYs, 3214 * namely for the 1000baseTX cards that use the XMAC's 3215 * GMII mode. 3216 */ 3217 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) { 3218 int i = 0; 3219 u_int32_t val; 3220 3221 /* Take PHY out of reset. */ 3222 val = sk_win_read_4(sc, SK_GPIO); 3223 if (sc_if->sk_port == SK_PORT_A) 3224 val |= SK_GPIO_DIR0|SK_GPIO_DAT0; 3225 else 3226 val |= SK_GPIO_DIR2|SK_GPIO_DAT2; 3227 sk_win_write_4(sc, SK_GPIO, val); 3228 3229 /* Enable GMII mode on the XMAC. */ 3230 SK_XM_SETBIT_2(sc_if, XM_HWCFG, XM_HWCFG_GMIIMODE); 3231 3232 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM, 3233 BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET); 3234 DELAY(10000); 3235 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM, 3236 BRGPHY_MII_IMR, 0xFFF0); 3237 3238 /* 3239 * Early versions of the BCM5400 apparently have 3240 * a bug that requires them to have their reserved 3241 * registers initialized to some magic values. I don't 3242 * know what the numbers do, I'm just the messenger. 3243 */ 3244 if (sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM, 0x03) 3245 == 0x6041) { 3246 while(bhack[i].reg) { 3247 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM, 3248 bhack[i].reg, bhack[i].val); 3249 i++; 3250 } 3251 } 3252 } 3253 3254 /* Set station address */ 3255 bcopy(IF_LLADDR(sc_if->sk_ifp), eaddr, ETHER_ADDR_LEN); 3256 SK_XM_WRITE_2(sc_if, XM_PAR0, eaddr[0]); 3257 SK_XM_WRITE_2(sc_if, XM_PAR1, eaddr[1]); 3258 SK_XM_WRITE_2(sc_if, XM_PAR2, eaddr[2]); 3259 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_USE_STATION); 3260 3261 if (ifp->if_flags & IFF_BROADCAST) { 3262 SK_XM_CLRBIT_4(sc_if, XM_MODE, XM_MODE_RX_NOBROAD); 3263 } else { 3264 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_NOBROAD); 3265 } 3266 3267 /* We don't need the FCS appended to the packet. */ 3268 SK_XM_SETBIT_2(sc_if, XM_RXCMD, XM_RXCMD_STRIPFCS); 3269 3270 /* We want short frames padded to 60 bytes. */ 3271 SK_XM_SETBIT_2(sc_if, XM_TXCMD, XM_TXCMD_AUTOPAD); 3272 3273 /* 3274 * Enable the reception of all error frames. This is is 3275 * a necessary evil due to the design of the XMAC. The 3276 * XMAC's receive FIFO is only 8K in size, however jumbo 3277 * frames can be up to 9000 bytes in length. When bad 3278 * frame filtering is enabled, the XMAC's RX FIFO operates 3279 * in 'store and forward' mode. For this to work, the 3280 * entire frame has to fit into the FIFO, but that means 3281 * that jumbo frames larger than 8192 bytes will be 3282 * truncated. Disabling all bad frame filtering causes 3283 * the RX FIFO to operate in streaming mode, in which 3284 * case the XMAC will start transferring frames out of the 3285 * RX FIFO as soon as the FIFO threshold is reached. 3286 */ 3287 if (ifp->if_mtu > SK_MAX_FRAMELEN) { 3288 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_BADFRAMES| 3289 XM_MODE_RX_GIANTS|XM_MODE_RX_RUNTS|XM_MODE_RX_CRCERRS| 3290 XM_MODE_RX_INRANGELEN); 3291 SK_XM_SETBIT_2(sc_if, XM_RXCMD, XM_RXCMD_BIGPKTOK); 3292 } else 3293 SK_XM_CLRBIT_2(sc_if, XM_RXCMD, XM_RXCMD_BIGPKTOK); 3294 3295 /* 3296 * Bump up the transmit threshold. This helps hold off transmit 3297 * underruns when we're blasting traffic from both ports at once. 3298 */ 3299 SK_XM_WRITE_2(sc_if, XM_TX_REQTHRESH, SK_XM_TX_FIFOTHRESH); 3300 3301 /* Set Rx filter */ 3302 sk_rxfilter_genesis(sc_if); 3303 3304 /* Clear and enable interrupts */ 3305 SK_XM_READ_2(sc_if, XM_ISR); 3306 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC) 3307 SK_XM_WRITE_2(sc_if, XM_IMR, XM_INTRS); 3308 else 3309 SK_XM_WRITE_2(sc_if, XM_IMR, 0xFFFF); 3310 3311 /* Configure MAC arbiter */ 3312 switch(sc_if->sk_xmac_rev) { 3313 case XM_XMAC_REV_B2: 3314 sk_win_write_1(sc, SK_RCINIT_RX1, SK_RCINIT_XMAC_B2); 3315 sk_win_write_1(sc, SK_RCINIT_TX1, SK_RCINIT_XMAC_B2); 3316 sk_win_write_1(sc, SK_RCINIT_RX2, SK_RCINIT_XMAC_B2); 3317 sk_win_write_1(sc, SK_RCINIT_TX2, SK_RCINIT_XMAC_B2); 3318 sk_win_write_1(sc, SK_MINIT_RX1, SK_MINIT_XMAC_B2); 3319 sk_win_write_1(sc, SK_MINIT_TX1, SK_MINIT_XMAC_B2); 3320 sk_win_write_1(sc, SK_MINIT_RX2, SK_MINIT_XMAC_B2); 3321 sk_win_write_1(sc, SK_MINIT_TX2, SK_MINIT_XMAC_B2); 3322 sk_win_write_1(sc, SK_RECOVERY_CTL, SK_RECOVERY_XMAC_B2); 3323 break; 3324 case XM_XMAC_REV_C1: 3325 sk_win_write_1(sc, SK_RCINIT_RX1, SK_RCINIT_XMAC_C1); 3326 sk_win_write_1(sc, SK_RCINIT_TX1, SK_RCINIT_XMAC_C1); 3327 sk_win_write_1(sc, SK_RCINIT_RX2, SK_RCINIT_XMAC_C1); 3328 sk_win_write_1(sc, SK_RCINIT_TX2, SK_RCINIT_XMAC_C1); 3329 sk_win_write_1(sc, SK_MINIT_RX1, SK_MINIT_XMAC_C1); 3330 sk_win_write_1(sc, SK_MINIT_TX1, SK_MINIT_XMAC_C1); 3331 sk_win_write_1(sc, SK_MINIT_RX2, SK_MINIT_XMAC_C1); 3332 sk_win_write_1(sc, SK_MINIT_TX2, SK_MINIT_XMAC_C1); 3333 sk_win_write_1(sc, SK_RECOVERY_CTL, SK_RECOVERY_XMAC_B2); 3334 break; 3335 default: 3336 break; 3337 } 3338 sk_win_write_2(sc, SK_MACARB_CTL, 3339 SK_MACARBCTL_UNRESET|SK_MACARBCTL_FASTOE_OFF); 3340 3341 sc_if->sk_link = 1; 3342 3343 return; 3344 } 3345 3346 static void 3347 sk_init_yukon(sc_if) 3348 struct sk_if_softc *sc_if; 3349 { 3350 u_int32_t phy, v; 3351 u_int16_t reg; 3352 struct sk_softc *sc; 3353 struct ifnet *ifp; 3354 u_int8_t *eaddr; 3355 int i; 3356 3357 SK_IF_LOCK_ASSERT(sc_if); 3358 3359 sc = sc_if->sk_softc; 3360 ifp = sc_if->sk_ifp; 3361 3362 if (sc->sk_type == SK_YUKON_LITE && 3363 sc->sk_rev >= SK_YUKON_LITE_REV_A3) { 3364 /* 3365 * Workaround code for COMA mode, set PHY reset. 3366 * Otherwise it will not correctly take chip out of 3367 * powerdown (coma) 3368 */ 3369 v = sk_win_read_4(sc, SK_GPIO); 3370 v |= SK_GPIO_DIR9 | SK_GPIO_DAT9; 3371 sk_win_write_4(sc, SK_GPIO, v); 3372 } 3373 3374 /* GMAC and GPHY Reset */ 3375 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, SK_GPHY_RESET_SET); 3376 SK_IF_WRITE_4(sc_if, 0, SK_GMAC_CTRL, SK_GMAC_RESET_SET); 3377 DELAY(1000); 3378 3379 if (sc->sk_type == SK_YUKON_LITE && 3380 sc->sk_rev >= SK_YUKON_LITE_REV_A3) { 3381 /* 3382 * Workaround code for COMA mode, clear PHY reset 3383 */ 3384 v = sk_win_read_4(sc, SK_GPIO); 3385 v |= SK_GPIO_DIR9; 3386 v &= ~SK_GPIO_DAT9; 3387 sk_win_write_4(sc, SK_GPIO, v); 3388 } 3389 3390 phy = SK_GPHY_INT_POL_HI | SK_GPHY_DIS_FC | SK_GPHY_DIS_SLEEP | 3391 SK_GPHY_ENA_XC | SK_GPHY_ANEG_ALL | SK_GPHY_ENA_PAUSE; 3392 3393 if (sc->sk_coppertype) 3394 phy |= SK_GPHY_COPPER; 3395 else 3396 phy |= SK_GPHY_FIBER; 3397 3398 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, phy | SK_GPHY_RESET_SET); 3399 DELAY(1000); 3400 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, phy | SK_GPHY_RESET_CLEAR); 3401 SK_IF_WRITE_4(sc_if, 0, SK_GMAC_CTRL, SK_GMAC_LOOP_OFF | 3402 SK_GMAC_PAUSE_ON | SK_GMAC_RESET_CLEAR); 3403 3404 /* unused read of the interrupt source register */ 3405 SK_IF_READ_2(sc_if, 0, SK_GMAC_ISR); 3406 3407 reg = SK_YU_READ_2(sc_if, YUKON_PAR); 3408 3409 /* MIB Counter Clear Mode set */ 3410 reg |= YU_PAR_MIB_CLR; 3411 SK_YU_WRITE_2(sc_if, YUKON_PAR, reg); 3412 3413 /* MIB Counter Clear Mode clear */ 3414 reg &= ~YU_PAR_MIB_CLR; 3415 SK_YU_WRITE_2(sc_if, YUKON_PAR, reg); 3416 3417 /* receive control reg */ 3418 SK_YU_WRITE_2(sc_if, YUKON_RCR, YU_RCR_CRCR); 3419 3420 /* transmit parameter register */ 3421 SK_YU_WRITE_2(sc_if, YUKON_TPR, YU_TPR_JAM_LEN(0x3) | 3422 YU_TPR_JAM_IPG(0xb) | YU_TPR_JAM2DATA_IPG(0x1a) ); 3423 3424 /* serial mode register */ 3425 reg = YU_SMR_DATA_BLIND(0x1c) | YU_SMR_MFL_VLAN | YU_SMR_IPG_DATA(0x1e); 3426 if (ifp->if_mtu > SK_MAX_FRAMELEN) 3427 reg |= YU_SMR_MFL_JUMBO; 3428 SK_YU_WRITE_2(sc_if, YUKON_SMR, reg); 3429 3430 /* Setup Yukon's station address */ 3431 eaddr = IF_LLADDR(sc_if->sk_ifp); 3432 for (i = 0; i < 3; i++) 3433 SK_YU_WRITE_2(sc_if, SK_MAC0_0 + i * 4, 3434 eaddr[i * 2] | eaddr[i * 2 + 1] << 8); 3435 /* Set GMAC source address of flow control. */ 3436 for (i = 0; i < 3; i++) 3437 SK_YU_WRITE_2(sc_if, YUKON_SAL1 + i * 4, 3438 eaddr[i * 2] | eaddr[i * 2 + 1] << 8); 3439 /* Set GMAC virtual address. */ 3440 for (i = 0; i < 3; i++) 3441 SK_YU_WRITE_2(sc_if, YUKON_SAL2 + i * 4, 3442 eaddr[i * 2] | eaddr[i * 2 + 1] << 8); 3443 3444 /* Set Rx filter */ 3445 sk_rxfilter_yukon(sc_if); 3446 3447 /* enable interrupt mask for counter overflows */ 3448 SK_YU_WRITE_2(sc_if, YUKON_TIMR, 0); 3449 SK_YU_WRITE_2(sc_if, YUKON_RIMR, 0); 3450 SK_YU_WRITE_2(sc_if, YUKON_TRIMR, 0); 3451 3452 /* Configure RX MAC FIFO Flush Mask */ 3453 v = YU_RXSTAT_FOFL | YU_RXSTAT_CRCERR | YU_RXSTAT_MIIERR | 3454 YU_RXSTAT_BADFC | YU_RXSTAT_GOODFC | YU_RXSTAT_RUNT | 3455 YU_RXSTAT_JABBER; 3456 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_FLUSH_MASK, v); 3457 3458 /* Disable RX MAC FIFO Flush for YUKON-Lite Rev. A0 only */ 3459 if (sc->sk_type == SK_YUKON_LITE && sc->sk_rev == SK_YUKON_LITE_REV_A0) 3460 v = SK_TFCTL_OPERATION_ON; 3461 else 3462 v = SK_TFCTL_OPERATION_ON | SK_RFCTL_FIFO_FLUSH_ON; 3463 /* Configure RX MAC FIFO */ 3464 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST, SK_RFCTL_RESET_CLEAR); 3465 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_CTRL_TEST, v); 3466 3467 /* Increase flush threshould to 64 bytes */ 3468 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_FLUSH_THRESHOLD, 3469 SK_RFCTL_FIFO_THRESHOLD + 1); 3470 3471 /* Configure TX MAC FIFO */ 3472 SK_IF_WRITE_1(sc_if, 0, SK_TXMF1_CTRL_TEST, SK_TFCTL_RESET_CLEAR); 3473 SK_IF_WRITE_2(sc_if, 0, SK_TXMF1_CTRL_TEST, SK_TFCTL_OPERATION_ON); 3474 } 3475 3476 /* 3477 * Note that to properly initialize any part of the GEnesis chip, 3478 * you first have to take it out of reset mode. 3479 */ 3480 static void 3481 sk_init(xsc) 3482 void *xsc; 3483 { 3484 struct sk_if_softc *sc_if = xsc; 3485 3486 SK_IF_LOCK(sc_if); 3487 sk_init_locked(sc_if); 3488 SK_IF_UNLOCK(sc_if); 3489 3490 return; 3491 } 3492 3493 static void 3494 sk_init_locked(sc_if) 3495 struct sk_if_softc *sc_if; 3496 { 3497 struct sk_softc *sc; 3498 struct ifnet *ifp; 3499 struct mii_data *mii; 3500 u_int16_t reg; 3501 u_int32_t imr; 3502 int error; 3503 3504 SK_IF_LOCK_ASSERT(sc_if); 3505 3506 ifp = sc_if->sk_ifp; 3507 sc = sc_if->sk_softc; 3508 mii = device_get_softc(sc_if->sk_miibus); 3509 3510 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3511 return; 3512 3513 /* Cancel pending I/O and free all RX/TX buffers. */ 3514 sk_stop(sc_if); 3515 3516 if (sc->sk_type == SK_GENESIS) { 3517 /* Configure LINK_SYNC LED */ 3518 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_ON); 3519 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, 3520 SK_LINKLED_LINKSYNC_ON); 3521 3522 /* Configure RX LED */ 3523 SK_IF_WRITE_1(sc_if, 0, SK_RXLED1_CTL, 3524 SK_RXLEDCTL_COUNTER_START); 3525 3526 /* Configure TX LED */ 3527 SK_IF_WRITE_1(sc_if, 0, SK_TXLED1_CTL, 3528 SK_TXLEDCTL_COUNTER_START); 3529 } 3530 3531 /* 3532 * Configure descriptor poll timer 3533 * 3534 * SK-NET GENESIS data sheet says that possibility of losing Start 3535 * transmit command due to CPU/cache related interim storage problems 3536 * under certain conditions. The document recommends a polling 3537 * mechanism to send a Start transmit command to initiate transfer 3538 * of ready descriptors regulary. To cope with this issue sk(4) now 3539 * enables descriptor poll timer to initiate descriptor processing 3540 * periodically as defined by SK_DPT_TIMER_MAX. However sk(4) still 3541 * issue SK_TXBMU_TX_START to Tx BMU to get fast execution of Tx 3542 * command instead of waiting for next descriptor polling time. 3543 * The same rule may apply to Rx side too but it seems that is not 3544 * needed at the moment. 3545 * Since sk(4) uses descriptor polling as a last resort there is no 3546 * need to set smaller polling time than maximum allowable one. 3547 */ 3548 SK_IF_WRITE_4(sc_if, 0, SK_DPT_INIT, SK_DPT_TIMER_MAX); 3549 3550 /* Configure I2C registers */ 3551 3552 /* Configure XMAC(s) */ 3553 switch (sc->sk_type) { 3554 case SK_GENESIS: 3555 sk_init_xmac(sc_if); 3556 break; 3557 case SK_YUKON: 3558 case SK_YUKON_LITE: 3559 case SK_YUKON_LP: 3560 sk_init_yukon(sc_if); 3561 break; 3562 } 3563 mii_mediachg(mii); 3564 3565 if (sc->sk_type == SK_GENESIS) { 3566 /* Configure MAC FIFOs */ 3567 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_UNRESET); 3568 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_END, SK_FIFO_END); 3569 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_ON); 3570 3571 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_CTL, SK_FIFO_UNRESET); 3572 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_END, SK_FIFO_END); 3573 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_CTL, SK_FIFO_ON); 3574 } 3575 3576 /* Configure transmit arbiter(s) */ 3577 SK_IF_WRITE_1(sc_if, 0, SK_TXAR1_COUNTERCTL, 3578 SK_TXARCTL_ON|SK_TXARCTL_FSYNC_ON); 3579 3580 /* Configure RAMbuffers */ 3581 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_UNRESET); 3582 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_START, sc_if->sk_rx_ramstart); 3583 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_WR_PTR, sc_if->sk_rx_ramstart); 3584 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_RD_PTR, sc_if->sk_rx_ramstart); 3585 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_END, sc_if->sk_rx_ramend); 3586 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_ON); 3587 3588 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_UNRESET); 3589 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_STORENFWD_ON); 3590 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_START, sc_if->sk_tx_ramstart); 3591 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_WR_PTR, sc_if->sk_tx_ramstart); 3592 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_RD_PTR, sc_if->sk_tx_ramstart); 3593 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_END, sc_if->sk_tx_ramend); 3594 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_ON); 3595 3596 /* Configure BMUs */ 3597 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_ONLINE); 3598 if (ifp->if_mtu > SK_MAX_FRAMELEN) { 3599 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_LO, 3600 SK_ADDR_LO(SK_JUMBO_RX_RING_ADDR(sc_if, 0))); 3601 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_HI, 3602 SK_ADDR_HI(SK_JUMBO_RX_RING_ADDR(sc_if, 0))); 3603 } else { 3604 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_LO, 3605 SK_ADDR_LO(SK_RX_RING_ADDR(sc_if, 0))); 3606 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_HI, 3607 SK_ADDR_HI(SK_RX_RING_ADDR(sc_if, 0))); 3608 } 3609 3610 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_BMU_CSR, SK_TXBMU_ONLINE); 3611 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_CURADDR_LO, 3612 SK_ADDR_LO(SK_TX_RING_ADDR(sc_if, 0))); 3613 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_CURADDR_HI, 3614 SK_ADDR_HI(SK_TX_RING_ADDR(sc_if, 0))); 3615 3616 /* Init descriptors */ 3617 if (ifp->if_mtu > SK_MAX_FRAMELEN) 3618 error = sk_init_jumbo_rx_ring(sc_if); 3619 else 3620 error = sk_init_rx_ring(sc_if); 3621 if (error != 0) { 3622 device_printf(sc_if->sk_if_dev, 3623 "initialization failed: no memory for rx buffers\n"); 3624 sk_stop(sc_if); 3625 return; 3626 } 3627 sk_init_tx_ring(sc_if); 3628 3629 /* Set interrupt moderation if changed via sysctl. */ 3630 imr = sk_win_read_4(sc, SK_IMTIMERINIT); 3631 if (imr != SK_IM_USECS(sc->sk_int_mod, sc->sk_int_ticks)) { 3632 sk_win_write_4(sc, SK_IMTIMERINIT, SK_IM_USECS(sc->sk_int_mod, 3633 sc->sk_int_ticks)); 3634 if (bootverbose) 3635 device_printf(sc_if->sk_if_dev, 3636 "interrupt moderation is %d us.\n", 3637 sc->sk_int_mod); 3638 } 3639 3640 /* Configure interrupt handling */ 3641 CSR_READ_4(sc, SK_ISSR); 3642 if (sc_if->sk_port == SK_PORT_A) 3643 sc->sk_intrmask |= SK_INTRS1; 3644 else 3645 sc->sk_intrmask |= SK_INTRS2; 3646 3647 sc->sk_intrmask |= SK_ISR_EXTERNAL_REG; 3648 3649 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask); 3650 3651 /* Start BMUs. */ 3652 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_RX_START); 3653 3654 switch(sc->sk_type) { 3655 case SK_GENESIS: 3656 /* Enable XMACs TX and RX state machines */ 3657 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_IGNPAUSE); 3658 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB); 3659 break; 3660 case SK_YUKON: 3661 case SK_YUKON_LITE: 3662 case SK_YUKON_LP: 3663 reg = SK_YU_READ_2(sc_if, YUKON_GPCR); 3664 reg |= YU_GPCR_TXEN | YU_GPCR_RXEN; 3665 #if 0 3666 /* XXX disable 100Mbps and full duplex mode? */ 3667 reg &= ~(YU_GPCR_SPEED | YU_GPCR_DPLX_DIS); 3668 #endif 3669 SK_YU_WRITE_2(sc_if, YUKON_GPCR, reg); 3670 } 3671 3672 /* Activate descriptor polling timer */ 3673 SK_IF_WRITE_4(sc_if, 0, SK_DPT_TIMER_CTRL, SK_DPT_TCTL_START); 3674 /* start transfer of Tx descriptors */ 3675 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_START); 3676 3677 ifp->if_drv_flags |= IFF_DRV_RUNNING; 3678 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3679 3680 switch (sc->sk_type) { 3681 case SK_YUKON: 3682 case SK_YUKON_LITE: 3683 case SK_YUKON_LP: 3684 callout_reset(&sc_if->sk_tick_ch, hz, sk_yukon_tick, sc_if); 3685 break; 3686 } 3687 3688 callout_reset(&sc_if->sk_watchdog_ch, hz, sk_watchdog, ifp); 3689 3690 return; 3691 } 3692 3693 static void 3694 sk_stop(sc_if) 3695 struct sk_if_softc *sc_if; 3696 { 3697 int i; 3698 struct sk_softc *sc; 3699 struct sk_txdesc *txd; 3700 struct sk_rxdesc *rxd; 3701 struct sk_rxdesc *jrxd; 3702 struct ifnet *ifp; 3703 u_int32_t val; 3704 3705 SK_IF_LOCK_ASSERT(sc_if); 3706 sc = sc_if->sk_softc; 3707 ifp = sc_if->sk_ifp; 3708 3709 callout_stop(&sc_if->sk_tick_ch); 3710 callout_stop(&sc_if->sk_watchdog_ch); 3711 3712 /* stop Tx descriptor polling timer */ 3713 SK_IF_WRITE_4(sc_if, 0, SK_DPT_TIMER_CTRL, SK_DPT_TCTL_STOP); 3714 /* stop transfer of Tx descriptors */ 3715 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_STOP); 3716 for (i = 0; i < SK_TIMEOUT; i++) { 3717 val = CSR_READ_4(sc, sc_if->sk_tx_bmu); 3718 if ((val & SK_TXBMU_TX_STOP) == 0) 3719 break; 3720 DELAY(1); 3721 } 3722 if (i == SK_TIMEOUT) 3723 device_printf(sc_if->sk_if_dev, 3724 "can not stop transfer of Tx descriptor\n"); 3725 /* stop transfer of Rx descriptors */ 3726 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_RX_STOP); 3727 for (i = 0; i < SK_TIMEOUT; i++) { 3728 val = SK_IF_READ_4(sc_if, 0, SK_RXQ1_BMU_CSR); 3729 if ((val & SK_RXBMU_RX_STOP) == 0) 3730 break; 3731 DELAY(1); 3732 } 3733 if (i == SK_TIMEOUT) 3734 device_printf(sc_if->sk_if_dev, 3735 "can not stop transfer of Rx descriptor\n"); 3736 3737 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) { 3738 /* Put PHY back into reset. */ 3739 val = sk_win_read_4(sc, SK_GPIO); 3740 if (sc_if->sk_port == SK_PORT_A) { 3741 val |= SK_GPIO_DIR0; 3742 val &= ~SK_GPIO_DAT0; 3743 } else { 3744 val |= SK_GPIO_DIR2; 3745 val &= ~SK_GPIO_DAT2; 3746 } 3747 sk_win_write_4(sc, SK_GPIO, val); 3748 } 3749 3750 /* Turn off various components of this interface. */ 3751 SK_XM_SETBIT_2(sc_if, XM_GPIO, XM_GPIO_RESETMAC); 3752 switch (sc->sk_type) { 3753 case SK_GENESIS: 3754 SK_IF_WRITE_2(sc_if, 0, SK_TXF1_MACCTL, SK_TXMACCTL_XMAC_RESET); 3755 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_RESET); 3756 break; 3757 case SK_YUKON: 3758 case SK_YUKON_LITE: 3759 case SK_YUKON_LP: 3760 SK_IF_WRITE_1(sc_if,0, SK_RXMF1_CTRL_TEST, SK_RFCTL_RESET_SET); 3761 SK_IF_WRITE_1(sc_if,0, SK_TXMF1_CTRL_TEST, SK_TFCTL_RESET_SET); 3762 break; 3763 } 3764 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_OFFLINE); 3765 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_RESET|SK_RBCTL_OFF); 3766 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_BMU_CSR, SK_TXBMU_OFFLINE); 3767 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_RESET|SK_RBCTL_OFF); 3768 SK_IF_WRITE_1(sc_if, 0, SK_TXAR1_COUNTERCTL, SK_TXARCTL_OFF); 3769 SK_IF_WRITE_1(sc_if, 0, SK_RXLED1_CTL, SK_RXLEDCTL_COUNTER_STOP); 3770 SK_IF_WRITE_1(sc_if, 0, SK_TXLED1_CTL, SK_RXLEDCTL_COUNTER_STOP); 3771 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_OFF); 3772 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_LINKSYNC_OFF); 3773 3774 /* Disable interrupts */ 3775 if (sc_if->sk_port == SK_PORT_A) 3776 sc->sk_intrmask &= ~SK_INTRS1; 3777 else 3778 sc->sk_intrmask &= ~SK_INTRS2; 3779 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask); 3780 3781 SK_XM_READ_2(sc_if, XM_ISR); 3782 SK_XM_WRITE_2(sc_if, XM_IMR, 0xFFFF); 3783 3784 /* Free RX and TX mbufs still in the queues. */ 3785 for (i = 0; i < SK_RX_RING_CNT; i++) { 3786 rxd = &sc_if->sk_cdata.sk_rxdesc[i]; 3787 if (rxd->rx_m != NULL) { 3788 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag, 3789 rxd->rx_dmamap, BUS_DMASYNC_POSTREAD); 3790 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_tag, 3791 rxd->rx_dmamap); 3792 m_freem(rxd->rx_m); 3793 rxd->rx_m = NULL; 3794 } 3795 } 3796 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) { 3797 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[i]; 3798 if (jrxd->rx_m != NULL) { 3799 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag, 3800 jrxd->rx_dmamap, BUS_DMASYNC_POSTREAD); 3801 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_tag, 3802 jrxd->rx_dmamap); 3803 m_freem(jrxd->rx_m); 3804 jrxd->rx_m = NULL; 3805 } 3806 } 3807 for (i = 0; i < SK_TX_RING_CNT; i++) { 3808 txd = &sc_if->sk_cdata.sk_txdesc[i]; 3809 if (txd->tx_m != NULL) { 3810 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag, 3811 txd->tx_dmamap, BUS_DMASYNC_POSTWRITE); 3812 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag, 3813 txd->tx_dmamap); 3814 m_freem(txd->tx_m); 3815 txd->tx_m = NULL; 3816 } 3817 } 3818 3819 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING|IFF_DRV_OACTIVE); 3820 3821 return; 3822 } 3823 3824 static int 3825 sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high) 3826 { 3827 int error, value; 3828 3829 if (!arg1) 3830 return (EINVAL); 3831 value = *(int *)arg1; 3832 error = sysctl_handle_int(oidp, &value, 0, req); 3833 if (error || !req->newptr) 3834 return (error); 3835 if (value < low || value > high) 3836 return (EINVAL); 3837 *(int *)arg1 = value; 3838 return (0); 3839 } 3840 3841 static int 3842 sysctl_hw_sk_int_mod(SYSCTL_HANDLER_ARGS) 3843 { 3844 return (sysctl_int_range(oidp, arg1, arg2, req, SK_IM_MIN, SK_IM_MAX)); 3845 } 3846