1 /* $OpenBSD: if_sk.c,v 2.33 2003/08/12 05:23:06 nate Exp $ */ 2 3 /*- 4 * Copyright (c) 1997, 1998, 1999, 2000 5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 /*- 35 * Copyright (c) 2003 Nathan L. Binkert <binkertn@umich.edu> 36 * 37 * Permission to use, copy, modify, and distribute this software for any 38 * purpose with or without fee is hereby granted, provided that the above 39 * copyright notice and this permission notice appear in all copies. 40 * 41 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 42 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 43 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 44 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 45 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 46 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 47 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 48 */ 49 50 #include <sys/cdefs.h> 51 __FBSDID("$FreeBSD$"); 52 53 /* 54 * SysKonnect SK-NET gigabit ethernet driver for FreeBSD. Supports 55 * the SK-984x series adapters, both single port and dual port. 56 * References: 57 * The XaQti XMAC II datasheet, 58 * http://www.freebsd.org/~wpaul/SysKonnect/xmacii_datasheet_rev_c_9-29.pdf 59 * The SysKonnect GEnesis manual, http://www.syskonnect.com 60 * 61 * Note: XaQti has been acquired by Vitesse, and Vitesse does not have the 62 * XMAC II datasheet online. I have put my copy at people.freebsd.org as a 63 * convenience to others until Vitesse corrects this problem: 64 * 65 * http://people.freebsd.org/~wpaul/SysKonnect/xmacii_datasheet_rev_c_9-29.pdf 66 * 67 * Written by Bill Paul <wpaul@ee.columbia.edu> 68 * Department of Electrical Engineering 69 * Columbia University, New York City 70 */ 71 /* 72 * The SysKonnect gigabit ethernet adapters consist of two main 73 * components: the SysKonnect GEnesis controller chip and the XaQti Corp. 74 * XMAC II gigabit ethernet MAC. The XMAC provides all of the MAC 75 * components and a PHY while the GEnesis controller provides a PCI 76 * interface with DMA support. Each card may have between 512K and 77 * 2MB of SRAM on board depending on the configuration. 78 * 79 * The SysKonnect GEnesis controller can have either one or two XMAC 80 * chips connected to it, allowing single or dual port NIC configurations. 81 * SysKonnect has the distinction of being the only vendor on the market 82 * with a dual port gigabit ethernet NIC. The GEnesis provides dual FIFOs, 83 * dual DMA queues, packet/MAC/transmit arbiters and direct access to the 84 * XMAC registers. This driver takes advantage of these features to allow 85 * both XMACs to operate as independent interfaces. 86 */ 87 88 #include <sys/param.h> 89 #include <sys/systm.h> 90 #include <sys/bus.h> 91 #include <sys/endian.h> 92 #include <sys/mbuf.h> 93 #include <sys/malloc.h> 94 #include <sys/kernel.h> 95 #include <sys/module.h> 96 #include <sys/socket.h> 97 #include <sys/sockio.h> 98 #include <sys/queue.h> 99 #include <sys/sysctl.h> 100 101 #include <net/bpf.h> 102 #include <net/ethernet.h> 103 #include <net/if.h> 104 #include <net/if_arp.h> 105 #include <net/if_dl.h> 106 #include <net/if_media.h> 107 #include <net/if_types.h> 108 #include <net/if_vlan_var.h> 109 110 #include <netinet/in.h> 111 #include <netinet/in_systm.h> 112 #include <netinet/ip.h> 113 114 #include <machine/bus.h> 115 #include <machine/in_cksum.h> 116 #include <machine/resource.h> 117 #include <sys/rman.h> 118 119 #include <dev/mii/mii.h> 120 #include <dev/mii/miivar.h> 121 #include <dev/mii/brgphyreg.h> 122 123 #include <dev/pci/pcireg.h> 124 #include <dev/pci/pcivar.h> 125 126 #if 0 127 #define SK_USEIOSPACE 128 #endif 129 130 #include <dev/sk/if_skreg.h> 131 #include <dev/sk/xmaciireg.h> 132 #include <dev/sk/yukonreg.h> 133 134 MODULE_DEPEND(sk, pci, 1, 1, 1); 135 MODULE_DEPEND(sk, ether, 1, 1, 1); 136 MODULE_DEPEND(sk, miibus, 1, 1, 1); 137 138 /* "device miibus" required. See GENERIC if you get errors here. */ 139 #include "miibus_if.h" 140 141 #ifndef lint 142 static const char rcsid[] = 143 "$FreeBSD$"; 144 #endif 145 146 static struct sk_type sk_devs[] = { 147 { 148 VENDORID_SK, 149 DEVICEID_SK_V1, 150 "SysKonnect Gigabit Ethernet (V1.0)" 151 }, 152 { 153 VENDORID_SK, 154 DEVICEID_SK_V2, 155 "SysKonnect Gigabit Ethernet (V2.0)" 156 }, 157 { 158 VENDORID_MARVELL, 159 DEVICEID_SK_V2, 160 "Marvell Gigabit Ethernet" 161 }, 162 { 163 VENDORID_MARVELL, 164 DEVICEID_BELKIN_5005, 165 "Belkin F5D5005 Gigabit Ethernet" 166 }, 167 { 168 VENDORID_3COM, 169 DEVICEID_3COM_3C940, 170 "3Com 3C940 Gigabit Ethernet" 171 }, 172 { 173 VENDORID_LINKSYS, 174 DEVICEID_LINKSYS_EG1032, 175 "Linksys EG1032 Gigabit Ethernet" 176 }, 177 { 178 VENDORID_DLINK, 179 DEVICEID_DLINK_DGE530T_A1, 180 "D-Link DGE-530T Gigabit Ethernet" 181 }, 182 { 183 VENDORID_DLINK, 184 DEVICEID_DLINK_DGE530T_B1, 185 "D-Link DGE-530T Gigabit Ethernet" 186 }, 187 { 0, 0, NULL } 188 }; 189 190 static int skc_probe(device_t); 191 static int skc_attach(device_t); 192 static int skc_detach(device_t); 193 static int skc_shutdown(device_t); 194 static int skc_suspend(device_t); 195 static int skc_resume(device_t); 196 static int sk_detach(device_t); 197 static int sk_probe(device_t); 198 static int sk_attach(device_t); 199 static void sk_tick(void *); 200 static void sk_yukon_tick(void *); 201 static void sk_intr(void *); 202 static void sk_intr_xmac(struct sk_if_softc *); 203 static void sk_intr_bcom(struct sk_if_softc *); 204 static void sk_intr_yukon(struct sk_if_softc *); 205 static __inline void sk_rxcksum(struct ifnet *, struct mbuf *, u_int32_t); 206 static __inline int sk_rxvalid(struct sk_softc *, u_int32_t, u_int32_t); 207 static void sk_rxeof(struct sk_if_softc *); 208 static void sk_jumbo_rxeof(struct sk_if_softc *); 209 static void sk_txeof(struct sk_if_softc *); 210 static void sk_txcksum(struct ifnet *, struct mbuf *, struct sk_tx_desc *); 211 static int sk_encap(struct sk_if_softc *, struct mbuf **); 212 static void sk_start(struct ifnet *); 213 static void sk_start_locked(struct ifnet *); 214 static int sk_ioctl(struct ifnet *, u_long, caddr_t); 215 static void sk_init(void *); 216 static void sk_init_locked(struct sk_if_softc *); 217 static void sk_init_xmac(struct sk_if_softc *); 218 static void sk_init_yukon(struct sk_if_softc *); 219 static void sk_stop(struct sk_if_softc *); 220 static void sk_watchdog(void *); 221 static int sk_ifmedia_upd(struct ifnet *); 222 static void sk_ifmedia_sts(struct ifnet *, struct ifmediareq *); 223 static void sk_reset(struct sk_softc *); 224 static __inline void sk_discard_rxbuf(struct sk_if_softc *, int); 225 static __inline void sk_discard_jumbo_rxbuf(struct sk_if_softc *, int); 226 static int sk_newbuf(struct sk_if_softc *, int); 227 static int sk_jumbo_newbuf(struct sk_if_softc *, int); 228 static void sk_dmamap_cb(void *, bus_dma_segment_t *, int, int); 229 static int sk_dma_alloc(struct sk_if_softc *); 230 static int sk_dma_jumbo_alloc(struct sk_if_softc *); 231 static void sk_dma_free(struct sk_if_softc *); 232 static void sk_dma_jumbo_free(struct sk_if_softc *); 233 static int sk_init_rx_ring(struct sk_if_softc *); 234 static int sk_init_jumbo_rx_ring(struct sk_if_softc *); 235 static void sk_init_tx_ring(struct sk_if_softc *); 236 static u_int32_t sk_win_read_4(struct sk_softc *, int); 237 static u_int16_t sk_win_read_2(struct sk_softc *, int); 238 static u_int8_t sk_win_read_1(struct sk_softc *, int); 239 static void sk_win_write_4(struct sk_softc *, int, u_int32_t); 240 static void sk_win_write_2(struct sk_softc *, int, u_int32_t); 241 static void sk_win_write_1(struct sk_softc *, int, u_int32_t); 242 243 static int sk_miibus_readreg(device_t, int, int); 244 static int sk_miibus_writereg(device_t, int, int, int); 245 static void sk_miibus_statchg(device_t); 246 247 static int sk_xmac_miibus_readreg(struct sk_if_softc *, int, int); 248 static int sk_xmac_miibus_writereg(struct sk_if_softc *, int, int, 249 int); 250 static void sk_xmac_miibus_statchg(struct sk_if_softc *); 251 252 static int sk_marv_miibus_readreg(struct sk_if_softc *, int, int); 253 static int sk_marv_miibus_writereg(struct sk_if_softc *, int, int, 254 int); 255 static void sk_marv_miibus_statchg(struct sk_if_softc *); 256 257 static uint32_t sk_xmchash(const uint8_t *); 258 static void sk_setfilt(struct sk_if_softc *, u_int16_t *, int); 259 static void sk_rxfilter(struct sk_if_softc *); 260 static void sk_rxfilter_genesis(struct sk_if_softc *); 261 static void sk_rxfilter_yukon(struct sk_if_softc *); 262 263 static int sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high); 264 static int sysctl_hw_sk_int_mod(SYSCTL_HANDLER_ARGS); 265 266 /* Tunables. */ 267 static int jumbo_disable = 0; 268 TUNABLE_INT("hw.skc.jumbo_disable", &jumbo_disable); 269 270 /* 271 * It seems that SK-NET GENESIS supports very simple checksum offload 272 * capability for Tx and I believe it can generate 0 checksum value for 273 * UDP packets in Tx as the hardware can't differenciate UDP packets from 274 * TCP packets. 0 chcecksum value for UDP packet is an invalid one as it 275 * means sender didn't perforam checksum computation. For the safety I 276 * disabled UDP checksum offload capability at the moment. Alternatively 277 * we can intrduce a LINK0/LINK1 flag as hme(4) did in its Tx checksum 278 * offload routine. 279 */ 280 #define SK_CSUM_FEATURES (CSUM_TCP) 281 282 /* 283 * Note that we have newbus methods for both the GEnesis controller 284 * itself and the XMAC(s). The XMACs are children of the GEnesis, and 285 * the miibus code is a child of the XMACs. We need to do it this way 286 * so that the miibus drivers can access the PHY registers on the 287 * right PHY. It's not quite what I had in mind, but it's the only 288 * design that achieves the desired effect. 289 */ 290 static device_method_t skc_methods[] = { 291 /* Device interface */ 292 DEVMETHOD(device_probe, skc_probe), 293 DEVMETHOD(device_attach, skc_attach), 294 DEVMETHOD(device_detach, skc_detach), 295 DEVMETHOD(device_suspend, skc_suspend), 296 DEVMETHOD(device_resume, skc_resume), 297 DEVMETHOD(device_shutdown, skc_shutdown), 298 299 /* bus interface */ 300 DEVMETHOD(bus_print_child, bus_generic_print_child), 301 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 302 303 { 0, 0 } 304 }; 305 306 static driver_t skc_driver = { 307 "skc", 308 skc_methods, 309 sizeof(struct sk_softc) 310 }; 311 312 static devclass_t skc_devclass; 313 314 static device_method_t sk_methods[] = { 315 /* Device interface */ 316 DEVMETHOD(device_probe, sk_probe), 317 DEVMETHOD(device_attach, sk_attach), 318 DEVMETHOD(device_detach, sk_detach), 319 DEVMETHOD(device_shutdown, bus_generic_shutdown), 320 321 /* bus interface */ 322 DEVMETHOD(bus_print_child, bus_generic_print_child), 323 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 324 325 /* MII interface */ 326 DEVMETHOD(miibus_readreg, sk_miibus_readreg), 327 DEVMETHOD(miibus_writereg, sk_miibus_writereg), 328 DEVMETHOD(miibus_statchg, sk_miibus_statchg), 329 330 { 0, 0 } 331 }; 332 333 static driver_t sk_driver = { 334 "sk", 335 sk_methods, 336 sizeof(struct sk_if_softc) 337 }; 338 339 static devclass_t sk_devclass; 340 341 DRIVER_MODULE(skc, pci, skc_driver, skc_devclass, 0, 0); 342 DRIVER_MODULE(sk, skc, sk_driver, sk_devclass, 0, 0); 343 DRIVER_MODULE(miibus, sk, miibus_driver, miibus_devclass, 0, 0); 344 345 static struct resource_spec sk_res_spec_io[] = { 346 { SYS_RES_IOPORT, PCIR_BAR(1), RF_ACTIVE }, 347 { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE }, 348 { -1, 0, 0 } 349 }; 350 351 static struct resource_spec sk_res_spec_mem[] = { 352 { SYS_RES_MEMORY, PCIR_BAR(0), RF_ACTIVE }, 353 { SYS_RES_IRQ, 0, RF_ACTIVE | RF_SHAREABLE }, 354 { -1, 0, 0 } 355 }; 356 357 #define SK_SETBIT(sc, reg, x) \ 358 CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) | x) 359 360 #define SK_CLRBIT(sc, reg, x) \ 361 CSR_WRITE_4(sc, reg, CSR_READ_4(sc, reg) & ~x) 362 363 #define SK_WIN_SETBIT_4(sc, reg, x) \ 364 sk_win_write_4(sc, reg, sk_win_read_4(sc, reg) | x) 365 366 #define SK_WIN_CLRBIT_4(sc, reg, x) \ 367 sk_win_write_4(sc, reg, sk_win_read_4(sc, reg) & ~x) 368 369 #define SK_WIN_SETBIT_2(sc, reg, x) \ 370 sk_win_write_2(sc, reg, sk_win_read_2(sc, reg) | x) 371 372 #define SK_WIN_CLRBIT_2(sc, reg, x) \ 373 sk_win_write_2(sc, reg, sk_win_read_2(sc, reg) & ~x) 374 375 static u_int32_t 376 sk_win_read_4(sc, reg) 377 struct sk_softc *sc; 378 int reg; 379 { 380 #ifdef SK_USEIOSPACE 381 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 382 return(CSR_READ_4(sc, SK_WIN_BASE + SK_REG(reg))); 383 #else 384 return(CSR_READ_4(sc, reg)); 385 #endif 386 } 387 388 static u_int16_t 389 sk_win_read_2(sc, reg) 390 struct sk_softc *sc; 391 int reg; 392 { 393 #ifdef SK_USEIOSPACE 394 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 395 return(CSR_READ_2(sc, SK_WIN_BASE + SK_REG(reg))); 396 #else 397 return(CSR_READ_2(sc, reg)); 398 #endif 399 } 400 401 static u_int8_t 402 sk_win_read_1(sc, reg) 403 struct sk_softc *sc; 404 int reg; 405 { 406 #ifdef SK_USEIOSPACE 407 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 408 return(CSR_READ_1(sc, SK_WIN_BASE + SK_REG(reg))); 409 #else 410 return(CSR_READ_1(sc, reg)); 411 #endif 412 } 413 414 static void 415 sk_win_write_4(sc, reg, val) 416 struct sk_softc *sc; 417 int reg; 418 u_int32_t val; 419 { 420 #ifdef SK_USEIOSPACE 421 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 422 CSR_WRITE_4(sc, SK_WIN_BASE + SK_REG(reg), val); 423 #else 424 CSR_WRITE_4(sc, reg, val); 425 #endif 426 return; 427 } 428 429 static void 430 sk_win_write_2(sc, reg, val) 431 struct sk_softc *sc; 432 int reg; 433 u_int32_t val; 434 { 435 #ifdef SK_USEIOSPACE 436 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 437 CSR_WRITE_2(sc, SK_WIN_BASE + SK_REG(reg), val); 438 #else 439 CSR_WRITE_2(sc, reg, val); 440 #endif 441 return; 442 } 443 444 static void 445 sk_win_write_1(sc, reg, val) 446 struct sk_softc *sc; 447 int reg; 448 u_int32_t val; 449 { 450 #ifdef SK_USEIOSPACE 451 CSR_WRITE_4(sc, SK_RAP, SK_WIN(reg)); 452 CSR_WRITE_1(sc, SK_WIN_BASE + SK_REG(reg), val); 453 #else 454 CSR_WRITE_1(sc, reg, val); 455 #endif 456 return; 457 } 458 459 static int 460 sk_miibus_readreg(dev, phy, reg) 461 device_t dev; 462 int phy, reg; 463 { 464 struct sk_if_softc *sc_if; 465 int v; 466 467 sc_if = device_get_softc(dev); 468 469 SK_IF_MII_LOCK(sc_if); 470 switch(sc_if->sk_softc->sk_type) { 471 case SK_GENESIS: 472 v = sk_xmac_miibus_readreg(sc_if, phy, reg); 473 break; 474 case SK_YUKON: 475 case SK_YUKON_LITE: 476 case SK_YUKON_LP: 477 v = sk_marv_miibus_readreg(sc_if, phy, reg); 478 break; 479 default: 480 v = 0; 481 break; 482 } 483 SK_IF_MII_UNLOCK(sc_if); 484 485 return (v); 486 } 487 488 static int 489 sk_miibus_writereg(dev, phy, reg, val) 490 device_t dev; 491 int phy, reg, val; 492 { 493 struct sk_if_softc *sc_if; 494 int v; 495 496 sc_if = device_get_softc(dev); 497 498 SK_IF_MII_LOCK(sc_if); 499 switch(sc_if->sk_softc->sk_type) { 500 case SK_GENESIS: 501 v = sk_xmac_miibus_writereg(sc_if, phy, reg, val); 502 break; 503 case SK_YUKON: 504 case SK_YUKON_LITE: 505 case SK_YUKON_LP: 506 v = sk_marv_miibus_writereg(sc_if, phy, reg, val); 507 break; 508 default: 509 v = 0; 510 break; 511 } 512 SK_IF_MII_UNLOCK(sc_if); 513 514 return (v); 515 } 516 517 static void 518 sk_miibus_statchg(dev) 519 device_t dev; 520 { 521 struct sk_if_softc *sc_if; 522 523 sc_if = device_get_softc(dev); 524 525 SK_IF_MII_LOCK(sc_if); 526 switch(sc_if->sk_softc->sk_type) { 527 case SK_GENESIS: 528 sk_xmac_miibus_statchg(sc_if); 529 break; 530 case SK_YUKON: 531 case SK_YUKON_LITE: 532 case SK_YUKON_LP: 533 sk_marv_miibus_statchg(sc_if); 534 break; 535 } 536 SK_IF_MII_UNLOCK(sc_if); 537 538 return; 539 } 540 541 static int 542 sk_xmac_miibus_readreg(sc_if, phy, reg) 543 struct sk_if_softc *sc_if; 544 int phy, reg; 545 { 546 int i; 547 548 SK_XM_WRITE_2(sc_if, XM_PHY_ADDR, reg|(phy << 8)); 549 SK_XM_READ_2(sc_if, XM_PHY_DATA); 550 if (sc_if->sk_phytype != SK_PHYTYPE_XMAC) { 551 for (i = 0; i < SK_TIMEOUT; i++) { 552 DELAY(1); 553 if (SK_XM_READ_2(sc_if, XM_MMUCMD) & 554 XM_MMUCMD_PHYDATARDY) 555 break; 556 } 557 558 if (i == SK_TIMEOUT) { 559 if_printf(sc_if->sk_ifp, "phy failed to come ready\n"); 560 return(0); 561 } 562 } 563 DELAY(1); 564 i = SK_XM_READ_2(sc_if, XM_PHY_DATA); 565 566 return(i); 567 } 568 569 static int 570 sk_xmac_miibus_writereg(sc_if, phy, reg, val) 571 struct sk_if_softc *sc_if; 572 int phy, reg, val; 573 { 574 int i; 575 576 SK_XM_WRITE_2(sc_if, XM_PHY_ADDR, reg|(phy << 8)); 577 for (i = 0; i < SK_TIMEOUT; i++) { 578 if (!(SK_XM_READ_2(sc_if, XM_MMUCMD) & XM_MMUCMD_PHYBUSY)) 579 break; 580 } 581 582 if (i == SK_TIMEOUT) { 583 if_printf(sc_if->sk_ifp, "phy failed to come ready\n"); 584 return (ETIMEDOUT); 585 } 586 587 SK_XM_WRITE_2(sc_if, XM_PHY_DATA, val); 588 for (i = 0; i < SK_TIMEOUT; i++) { 589 DELAY(1); 590 if (!(SK_XM_READ_2(sc_if, XM_MMUCMD) & XM_MMUCMD_PHYBUSY)) 591 break; 592 } 593 if (i == SK_TIMEOUT) 594 if_printf(sc_if->sk_ifp, "phy write timed out\n"); 595 596 return(0); 597 } 598 599 static void 600 sk_xmac_miibus_statchg(sc_if) 601 struct sk_if_softc *sc_if; 602 { 603 struct mii_data *mii; 604 605 mii = device_get_softc(sc_if->sk_miibus); 606 607 /* 608 * If this is a GMII PHY, manually set the XMAC's 609 * duplex mode accordingly. 610 */ 611 if (sc_if->sk_phytype != SK_PHYTYPE_XMAC) { 612 if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) { 613 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_GMIIFDX); 614 } else { 615 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_GMIIFDX); 616 } 617 } 618 } 619 620 static int 621 sk_marv_miibus_readreg(sc_if, phy, reg) 622 struct sk_if_softc *sc_if; 623 int phy, reg; 624 { 625 u_int16_t val; 626 int i; 627 628 if (sc_if->sk_phytype != SK_PHYTYPE_MARV_COPPER && 629 sc_if->sk_phytype != SK_PHYTYPE_MARV_FIBER) { 630 return(0); 631 } 632 633 SK_YU_WRITE_2(sc_if, YUKON_SMICR, YU_SMICR_PHYAD(phy) | 634 YU_SMICR_REGAD(reg) | YU_SMICR_OP_READ); 635 636 for (i = 0; i < SK_TIMEOUT; i++) { 637 DELAY(1); 638 val = SK_YU_READ_2(sc_if, YUKON_SMICR); 639 if (val & YU_SMICR_READ_VALID) 640 break; 641 } 642 643 if (i == SK_TIMEOUT) { 644 if_printf(sc_if->sk_ifp, "phy failed to come ready\n"); 645 return(0); 646 } 647 648 val = SK_YU_READ_2(sc_if, YUKON_SMIDR); 649 650 return(val); 651 } 652 653 static int 654 sk_marv_miibus_writereg(sc_if, phy, reg, val) 655 struct sk_if_softc *sc_if; 656 int phy, reg, val; 657 { 658 int i; 659 660 SK_YU_WRITE_2(sc_if, YUKON_SMIDR, val); 661 SK_YU_WRITE_2(sc_if, YUKON_SMICR, YU_SMICR_PHYAD(phy) | 662 YU_SMICR_REGAD(reg) | YU_SMICR_OP_WRITE); 663 664 for (i = 0; i < SK_TIMEOUT; i++) { 665 DELAY(1); 666 if ((SK_YU_READ_2(sc_if, YUKON_SMICR) & YU_SMICR_BUSY) == 0) 667 break; 668 } 669 if (i == SK_TIMEOUT) 670 if_printf(sc_if->sk_ifp, "phy write timeout\n"); 671 672 return(0); 673 } 674 675 static void 676 sk_marv_miibus_statchg(sc_if) 677 struct sk_if_softc *sc_if; 678 { 679 return; 680 } 681 682 #define HASH_BITS 6 683 684 static u_int32_t 685 sk_xmchash(addr) 686 const uint8_t *addr; 687 { 688 uint32_t crc; 689 690 /* Compute CRC for the address value. */ 691 crc = ether_crc32_le(addr, ETHER_ADDR_LEN); 692 693 return (~crc & ((1 << HASH_BITS) - 1)); 694 } 695 696 static void 697 sk_setfilt(sc_if, addr, slot) 698 struct sk_if_softc *sc_if; 699 u_int16_t *addr; 700 int slot; 701 { 702 int base; 703 704 base = XM_RXFILT_ENTRY(slot); 705 706 SK_XM_WRITE_2(sc_if, base, addr[0]); 707 SK_XM_WRITE_2(sc_if, base + 2, addr[1]); 708 SK_XM_WRITE_2(sc_if, base + 4, addr[2]); 709 710 return; 711 } 712 713 static void 714 sk_rxfilter(sc_if) 715 struct sk_if_softc *sc_if; 716 { 717 struct sk_softc *sc; 718 719 SK_IF_LOCK_ASSERT(sc_if); 720 721 sc = sc_if->sk_softc; 722 if (sc->sk_type == SK_GENESIS) 723 sk_rxfilter_genesis(sc_if); 724 else 725 sk_rxfilter_yukon(sc_if); 726 } 727 728 static void 729 sk_rxfilter_genesis(sc_if) 730 struct sk_if_softc *sc_if; 731 { 732 struct ifnet *ifp = sc_if->sk_ifp; 733 u_int32_t hashes[2] = { 0, 0 }, mode; 734 int h = 0, i; 735 struct ifmultiaddr *ifma; 736 u_int16_t dummy[] = { 0, 0, 0 }; 737 u_int16_t maddr[(ETHER_ADDR_LEN+1)/2]; 738 739 SK_IF_LOCK_ASSERT(sc_if); 740 741 mode = SK_XM_READ_4(sc_if, XM_MODE); 742 mode &= ~(XM_MODE_RX_PROMISC | XM_MODE_RX_USE_HASH | 743 XM_MODE_RX_USE_PERFECT); 744 /* First, zot all the existing perfect filters. */ 745 for (i = 1; i < XM_RXFILT_MAX; i++) 746 sk_setfilt(sc_if, dummy, i); 747 748 /* Now program new ones. */ 749 if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { 750 if (ifp->if_flags & IFF_ALLMULTI) 751 mode |= XM_MODE_RX_USE_HASH; 752 if (ifp->if_flags & IFF_PROMISC) 753 mode |= XM_MODE_RX_PROMISC; 754 hashes[0] = 0xFFFFFFFF; 755 hashes[1] = 0xFFFFFFFF; 756 } else { 757 i = 1; 758 if_maddr_rlock(ifp); 759 TAILQ_FOREACH_REVERSE(ifma, &ifp->if_multiaddrs, ifmultihead, 760 ifma_link) { 761 if (ifma->ifma_addr->sa_family != AF_LINK) 762 continue; 763 /* 764 * Program the first XM_RXFILT_MAX multicast groups 765 * into the perfect filter. 766 */ 767 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 768 maddr, ETHER_ADDR_LEN); 769 if (i < XM_RXFILT_MAX) { 770 sk_setfilt(sc_if, maddr, i); 771 mode |= XM_MODE_RX_USE_PERFECT; 772 i++; 773 continue; 774 } 775 h = sk_xmchash((const uint8_t *)maddr); 776 if (h < 32) 777 hashes[0] |= (1 << h); 778 else 779 hashes[1] |= (1 << (h - 32)); 780 mode |= XM_MODE_RX_USE_HASH; 781 } 782 if_maddr_runlock(ifp); 783 } 784 785 SK_XM_WRITE_4(sc_if, XM_MODE, mode); 786 SK_XM_WRITE_4(sc_if, XM_MAR0, hashes[0]); 787 SK_XM_WRITE_4(sc_if, XM_MAR2, hashes[1]); 788 } 789 790 static void 791 sk_rxfilter_yukon(sc_if) 792 struct sk_if_softc *sc_if; 793 { 794 struct ifnet *ifp; 795 u_int32_t crc, hashes[2] = { 0, 0 }, mode; 796 struct ifmultiaddr *ifma; 797 798 SK_IF_LOCK_ASSERT(sc_if); 799 800 ifp = sc_if->sk_ifp; 801 mode = SK_YU_READ_2(sc_if, YUKON_RCR); 802 if (ifp->if_flags & IFF_PROMISC) 803 mode &= ~(YU_RCR_UFLEN | YU_RCR_MUFLEN); 804 else if (ifp->if_flags & IFF_ALLMULTI) { 805 mode |= YU_RCR_UFLEN | YU_RCR_MUFLEN; 806 hashes[0] = 0xFFFFFFFF; 807 hashes[1] = 0xFFFFFFFF; 808 } else { 809 mode |= YU_RCR_UFLEN; 810 if_maddr_rlock(ifp); 811 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 812 if (ifma->ifma_addr->sa_family != AF_LINK) 813 continue; 814 crc = ether_crc32_be(LLADDR((struct sockaddr_dl *) 815 ifma->ifma_addr), ETHER_ADDR_LEN); 816 /* Just want the 6 least significant bits. */ 817 crc &= 0x3f; 818 /* Set the corresponding bit in the hash table. */ 819 hashes[crc >> 5] |= 1 << (crc & 0x1f); 820 } 821 if_maddr_runlock(ifp); 822 if (hashes[0] != 0 || hashes[1] != 0) 823 mode |= YU_RCR_MUFLEN; 824 } 825 826 SK_YU_WRITE_2(sc_if, YUKON_MCAH1, hashes[0] & 0xffff); 827 SK_YU_WRITE_2(sc_if, YUKON_MCAH2, (hashes[0] >> 16) & 0xffff); 828 SK_YU_WRITE_2(sc_if, YUKON_MCAH3, hashes[1] & 0xffff); 829 SK_YU_WRITE_2(sc_if, YUKON_MCAH4, (hashes[1] >> 16) & 0xffff); 830 SK_YU_WRITE_2(sc_if, YUKON_RCR, mode); 831 } 832 833 static int 834 sk_init_rx_ring(sc_if) 835 struct sk_if_softc *sc_if; 836 { 837 struct sk_ring_data *rd; 838 bus_addr_t addr; 839 u_int32_t csum_start; 840 int i; 841 842 sc_if->sk_cdata.sk_rx_cons = 0; 843 844 csum_start = (ETHER_HDR_LEN + sizeof(struct ip)) << 16 | 845 ETHER_HDR_LEN; 846 rd = &sc_if->sk_rdata; 847 bzero(rd->sk_rx_ring, sizeof(struct sk_rx_desc) * SK_RX_RING_CNT); 848 for (i = 0; i < SK_RX_RING_CNT; i++) { 849 if (sk_newbuf(sc_if, i) != 0) 850 return (ENOBUFS); 851 if (i == (SK_RX_RING_CNT - 1)) 852 addr = SK_RX_RING_ADDR(sc_if, 0); 853 else 854 addr = SK_RX_RING_ADDR(sc_if, i + 1); 855 rd->sk_rx_ring[i].sk_next = htole32(SK_ADDR_LO(addr)); 856 rd->sk_rx_ring[i].sk_csum_start = htole32(csum_start); 857 } 858 859 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag, 860 sc_if->sk_cdata.sk_rx_ring_map, 861 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 862 863 return(0); 864 } 865 866 static int 867 sk_init_jumbo_rx_ring(sc_if) 868 struct sk_if_softc *sc_if; 869 { 870 struct sk_ring_data *rd; 871 bus_addr_t addr; 872 u_int32_t csum_start; 873 int i; 874 875 sc_if->sk_cdata.sk_jumbo_rx_cons = 0; 876 877 csum_start = ((ETHER_HDR_LEN + sizeof(struct ip)) << 16) | 878 ETHER_HDR_LEN; 879 rd = &sc_if->sk_rdata; 880 bzero(rd->sk_jumbo_rx_ring, 881 sizeof(struct sk_rx_desc) * SK_JUMBO_RX_RING_CNT); 882 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) { 883 if (sk_jumbo_newbuf(sc_if, i) != 0) 884 return (ENOBUFS); 885 if (i == (SK_JUMBO_RX_RING_CNT - 1)) 886 addr = SK_JUMBO_RX_RING_ADDR(sc_if, 0); 887 else 888 addr = SK_JUMBO_RX_RING_ADDR(sc_if, i + 1); 889 rd->sk_jumbo_rx_ring[i].sk_next = htole32(SK_ADDR_LO(addr)); 890 rd->sk_jumbo_rx_ring[i].sk_csum_start = htole32(csum_start); 891 } 892 893 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 894 sc_if->sk_cdata.sk_jumbo_rx_ring_map, 895 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 896 897 return (0); 898 } 899 900 static void 901 sk_init_tx_ring(sc_if) 902 struct sk_if_softc *sc_if; 903 { 904 struct sk_ring_data *rd; 905 struct sk_txdesc *txd; 906 bus_addr_t addr; 907 int i; 908 909 STAILQ_INIT(&sc_if->sk_cdata.sk_txfreeq); 910 STAILQ_INIT(&sc_if->sk_cdata.sk_txbusyq); 911 912 sc_if->sk_cdata.sk_tx_prod = 0; 913 sc_if->sk_cdata.sk_tx_cons = 0; 914 sc_if->sk_cdata.sk_tx_cnt = 0; 915 916 rd = &sc_if->sk_rdata; 917 bzero(rd->sk_tx_ring, sizeof(struct sk_tx_desc) * SK_TX_RING_CNT); 918 for (i = 0; i < SK_TX_RING_CNT; i++) { 919 if (i == (SK_TX_RING_CNT - 1)) 920 addr = SK_TX_RING_ADDR(sc_if, 0); 921 else 922 addr = SK_TX_RING_ADDR(sc_if, i + 1); 923 rd->sk_tx_ring[i].sk_next = htole32(SK_ADDR_LO(addr)); 924 txd = &sc_if->sk_cdata.sk_txdesc[i]; 925 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txfreeq, txd, tx_q); 926 } 927 928 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag, 929 sc_if->sk_cdata.sk_tx_ring_map, 930 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 931 } 932 933 static __inline void 934 sk_discard_rxbuf(sc_if, idx) 935 struct sk_if_softc *sc_if; 936 int idx; 937 { 938 struct sk_rx_desc *r; 939 struct sk_rxdesc *rxd; 940 struct mbuf *m; 941 942 943 r = &sc_if->sk_rdata.sk_rx_ring[idx]; 944 rxd = &sc_if->sk_cdata.sk_rxdesc[idx]; 945 m = rxd->rx_m; 946 r->sk_ctl = htole32(m->m_len | SK_RXSTAT | SK_OPCODE_CSUM); 947 } 948 949 static __inline void 950 sk_discard_jumbo_rxbuf(sc_if, idx) 951 struct sk_if_softc *sc_if; 952 int idx; 953 { 954 struct sk_rx_desc *r; 955 struct sk_rxdesc *rxd; 956 struct mbuf *m; 957 958 r = &sc_if->sk_rdata.sk_jumbo_rx_ring[idx]; 959 rxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[idx]; 960 m = rxd->rx_m; 961 r->sk_ctl = htole32(m->m_len | SK_RXSTAT | SK_OPCODE_CSUM); 962 } 963 964 static int 965 sk_newbuf(sc_if, idx) 966 struct sk_if_softc *sc_if; 967 int idx; 968 { 969 struct sk_rx_desc *r; 970 struct sk_rxdesc *rxd; 971 struct mbuf *m; 972 bus_dma_segment_t segs[1]; 973 bus_dmamap_t map; 974 int nsegs; 975 976 m = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 977 if (m == NULL) 978 return (ENOBUFS); 979 m->m_len = m->m_pkthdr.len = MCLBYTES; 980 m_adj(m, ETHER_ALIGN); 981 982 if (bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_rx_tag, 983 sc_if->sk_cdata.sk_rx_sparemap, m, segs, &nsegs, 0) != 0) { 984 m_freem(m); 985 return (ENOBUFS); 986 } 987 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 988 989 rxd = &sc_if->sk_cdata.sk_rxdesc[idx]; 990 if (rxd->rx_m != NULL) { 991 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap, 992 BUS_DMASYNC_POSTREAD); 993 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap); 994 } 995 map = rxd->rx_dmamap; 996 rxd->rx_dmamap = sc_if->sk_cdata.sk_rx_sparemap; 997 sc_if->sk_cdata.sk_rx_sparemap = map; 998 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag, rxd->rx_dmamap, 999 BUS_DMASYNC_PREREAD); 1000 rxd->rx_m = m; 1001 r = &sc_if->sk_rdata.sk_rx_ring[idx]; 1002 r->sk_data_lo = htole32(SK_ADDR_LO(segs[0].ds_addr)); 1003 r->sk_data_hi = htole32(SK_ADDR_HI(segs[0].ds_addr)); 1004 r->sk_ctl = htole32(segs[0].ds_len | SK_RXSTAT | SK_OPCODE_CSUM); 1005 1006 return (0); 1007 } 1008 1009 static int 1010 sk_jumbo_newbuf(sc_if, idx) 1011 struct sk_if_softc *sc_if; 1012 int idx; 1013 { 1014 struct sk_rx_desc *r; 1015 struct sk_rxdesc *rxd; 1016 struct mbuf *m; 1017 bus_dma_segment_t segs[1]; 1018 bus_dmamap_t map; 1019 int nsegs; 1020 1021 m = m_getjcl(M_DONTWAIT, MT_DATA, M_PKTHDR, MJUM9BYTES); 1022 if (m == NULL) 1023 return (ENOBUFS); 1024 if ((m->m_flags & M_EXT) == 0) { 1025 m_freem(m); 1026 return (ENOBUFS); 1027 } 1028 m->m_pkthdr.len = m->m_len = MJUM9BYTES; 1029 /* 1030 * Adjust alignment so packet payload begins on a 1031 * longword boundary. Mandatory for Alpha, useful on 1032 * x86 too. 1033 */ 1034 m_adj(m, ETHER_ALIGN); 1035 1036 if (bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_jumbo_rx_tag, 1037 sc_if->sk_cdata.sk_jumbo_rx_sparemap, m, segs, &nsegs, 0) != 0) { 1038 m_freem(m); 1039 return (ENOBUFS); 1040 } 1041 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 1042 1043 rxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[idx]; 1044 if (rxd->rx_m != NULL) { 1045 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag, rxd->rx_dmamap, 1046 BUS_DMASYNC_POSTREAD); 1047 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_tag, 1048 rxd->rx_dmamap); 1049 } 1050 map = rxd->rx_dmamap; 1051 rxd->rx_dmamap = sc_if->sk_cdata.sk_jumbo_rx_sparemap; 1052 sc_if->sk_cdata.sk_jumbo_rx_sparemap = map; 1053 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag, rxd->rx_dmamap, 1054 BUS_DMASYNC_PREREAD); 1055 rxd->rx_m = m; 1056 r = &sc_if->sk_rdata.sk_jumbo_rx_ring[idx]; 1057 r->sk_data_lo = htole32(SK_ADDR_LO(segs[0].ds_addr)); 1058 r->sk_data_hi = htole32(SK_ADDR_HI(segs[0].ds_addr)); 1059 r->sk_ctl = htole32(segs[0].ds_len | SK_RXSTAT | SK_OPCODE_CSUM); 1060 1061 return (0); 1062 } 1063 1064 /* 1065 * Set media options. 1066 */ 1067 static int 1068 sk_ifmedia_upd(ifp) 1069 struct ifnet *ifp; 1070 { 1071 struct sk_if_softc *sc_if = ifp->if_softc; 1072 struct mii_data *mii; 1073 1074 mii = device_get_softc(sc_if->sk_miibus); 1075 sk_init(sc_if); 1076 mii_mediachg(mii); 1077 1078 return(0); 1079 } 1080 1081 /* 1082 * Report current media status. 1083 */ 1084 static void 1085 sk_ifmedia_sts(ifp, ifmr) 1086 struct ifnet *ifp; 1087 struct ifmediareq *ifmr; 1088 { 1089 struct sk_if_softc *sc_if; 1090 struct mii_data *mii; 1091 1092 sc_if = ifp->if_softc; 1093 mii = device_get_softc(sc_if->sk_miibus); 1094 1095 mii_pollstat(mii); 1096 ifmr->ifm_active = mii->mii_media_active; 1097 ifmr->ifm_status = mii->mii_media_status; 1098 1099 return; 1100 } 1101 1102 static int 1103 sk_ioctl(ifp, command, data) 1104 struct ifnet *ifp; 1105 u_long command; 1106 caddr_t data; 1107 { 1108 struct sk_if_softc *sc_if = ifp->if_softc; 1109 struct ifreq *ifr = (struct ifreq *) data; 1110 int error, mask; 1111 struct mii_data *mii; 1112 1113 error = 0; 1114 switch(command) { 1115 case SIOCSIFMTU: 1116 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > SK_JUMBO_MTU) 1117 error = EINVAL; 1118 else if (ifp->if_mtu != ifr->ifr_mtu) { 1119 if (sc_if->sk_jumbo_disable != 0 && 1120 ifr->ifr_mtu > SK_MAX_FRAMELEN) 1121 error = EINVAL; 1122 else { 1123 SK_IF_LOCK(sc_if); 1124 ifp->if_mtu = ifr->ifr_mtu; 1125 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1126 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 1127 sk_init_locked(sc_if); 1128 } 1129 SK_IF_UNLOCK(sc_if); 1130 } 1131 } 1132 break; 1133 case SIOCSIFFLAGS: 1134 SK_IF_LOCK(sc_if); 1135 if (ifp->if_flags & IFF_UP) { 1136 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 1137 if ((ifp->if_flags ^ sc_if->sk_if_flags) 1138 & (IFF_PROMISC | IFF_ALLMULTI)) 1139 sk_rxfilter(sc_if); 1140 } else 1141 sk_init_locked(sc_if); 1142 } else { 1143 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1144 sk_stop(sc_if); 1145 } 1146 sc_if->sk_if_flags = ifp->if_flags; 1147 SK_IF_UNLOCK(sc_if); 1148 break; 1149 case SIOCADDMULTI: 1150 case SIOCDELMULTI: 1151 SK_IF_LOCK(sc_if); 1152 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 1153 sk_rxfilter(sc_if); 1154 SK_IF_UNLOCK(sc_if); 1155 break; 1156 case SIOCGIFMEDIA: 1157 case SIOCSIFMEDIA: 1158 mii = device_get_softc(sc_if->sk_miibus); 1159 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 1160 break; 1161 case SIOCSIFCAP: 1162 SK_IF_LOCK(sc_if); 1163 if (sc_if->sk_softc->sk_type == SK_GENESIS) { 1164 SK_IF_UNLOCK(sc_if); 1165 break; 1166 } 1167 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 1168 if ((mask & IFCAP_TXCSUM) != 0 && 1169 (IFCAP_TXCSUM & ifp->if_capabilities) != 0) { 1170 ifp->if_capenable ^= IFCAP_TXCSUM; 1171 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 1172 ifp->if_hwassist |= SK_CSUM_FEATURES; 1173 else 1174 ifp->if_hwassist &= ~SK_CSUM_FEATURES; 1175 } 1176 if ((mask & IFCAP_RXCSUM) != 0 && 1177 (IFCAP_RXCSUM & ifp->if_capabilities) != 0) 1178 ifp->if_capenable ^= IFCAP_RXCSUM; 1179 SK_IF_UNLOCK(sc_if); 1180 break; 1181 default: 1182 error = ether_ioctl(ifp, command, data); 1183 break; 1184 } 1185 1186 return (error); 1187 } 1188 1189 /* 1190 * Probe for a SysKonnect GEnesis chip. Check the PCI vendor and device 1191 * IDs against our list and return a device name if we find a match. 1192 */ 1193 static int 1194 skc_probe(dev) 1195 device_t dev; 1196 { 1197 struct sk_type *t = sk_devs; 1198 1199 while(t->sk_name != NULL) { 1200 if ((pci_get_vendor(dev) == t->sk_vid) && 1201 (pci_get_device(dev) == t->sk_did)) { 1202 /* 1203 * Only attach to rev. 2 of the Linksys EG1032 adapter. 1204 * Rev. 3 is supported by re(4). 1205 */ 1206 if ((t->sk_vid == VENDORID_LINKSYS) && 1207 (t->sk_did == DEVICEID_LINKSYS_EG1032) && 1208 (pci_get_subdevice(dev) != 1209 SUBDEVICEID_LINKSYS_EG1032_REV2)) { 1210 t++; 1211 continue; 1212 } 1213 device_set_desc(dev, t->sk_name); 1214 return (BUS_PROBE_DEFAULT); 1215 } 1216 t++; 1217 } 1218 1219 return(ENXIO); 1220 } 1221 1222 /* 1223 * Force the GEnesis into reset, then bring it out of reset. 1224 */ 1225 static void 1226 sk_reset(sc) 1227 struct sk_softc *sc; 1228 { 1229 1230 CSR_WRITE_2(sc, SK_CSR, SK_CSR_SW_RESET); 1231 CSR_WRITE_2(sc, SK_CSR, SK_CSR_MASTER_RESET); 1232 if (SK_YUKON_FAMILY(sc->sk_type)) 1233 CSR_WRITE_2(sc, SK_LINK_CTRL, SK_LINK_RESET_SET); 1234 1235 DELAY(1000); 1236 CSR_WRITE_2(sc, SK_CSR, SK_CSR_SW_UNRESET); 1237 DELAY(2); 1238 CSR_WRITE_2(sc, SK_CSR, SK_CSR_MASTER_UNRESET); 1239 if (SK_YUKON_FAMILY(sc->sk_type)) 1240 CSR_WRITE_2(sc, SK_LINK_CTRL, SK_LINK_RESET_CLEAR); 1241 1242 if (sc->sk_type == SK_GENESIS) { 1243 /* Configure packet arbiter */ 1244 sk_win_write_2(sc, SK_PKTARB_CTL, SK_PKTARBCTL_UNRESET); 1245 sk_win_write_2(sc, SK_RXPA1_TINIT, SK_PKTARB_TIMEOUT); 1246 sk_win_write_2(sc, SK_TXPA1_TINIT, SK_PKTARB_TIMEOUT); 1247 sk_win_write_2(sc, SK_RXPA2_TINIT, SK_PKTARB_TIMEOUT); 1248 sk_win_write_2(sc, SK_TXPA2_TINIT, SK_PKTARB_TIMEOUT); 1249 } 1250 1251 /* Enable RAM interface */ 1252 sk_win_write_4(sc, SK_RAMCTL, SK_RAMCTL_UNRESET); 1253 1254 /* 1255 * Configure interrupt moderation. The moderation timer 1256 * defers interrupts specified in the interrupt moderation 1257 * timer mask based on the timeout specified in the interrupt 1258 * moderation timer init register. Each bit in the timer 1259 * register represents one tick, so to specify a timeout in 1260 * microseconds, we have to multiply by the correct number of 1261 * ticks-per-microsecond. 1262 */ 1263 switch (sc->sk_type) { 1264 case SK_GENESIS: 1265 sc->sk_int_ticks = SK_IMTIMER_TICKS_GENESIS; 1266 break; 1267 default: 1268 sc->sk_int_ticks = SK_IMTIMER_TICKS_YUKON; 1269 break; 1270 } 1271 if (bootverbose) 1272 device_printf(sc->sk_dev, "interrupt moderation is %d us\n", 1273 sc->sk_int_mod); 1274 sk_win_write_4(sc, SK_IMTIMERINIT, SK_IM_USECS(sc->sk_int_mod, 1275 sc->sk_int_ticks)); 1276 sk_win_write_4(sc, SK_IMMR, SK_ISR_TX1_S_EOF|SK_ISR_TX2_S_EOF| 1277 SK_ISR_RX1_EOF|SK_ISR_RX2_EOF); 1278 sk_win_write_1(sc, SK_IMTIMERCTL, SK_IMCTL_START); 1279 1280 return; 1281 } 1282 1283 static int 1284 sk_probe(dev) 1285 device_t dev; 1286 { 1287 struct sk_softc *sc; 1288 1289 sc = device_get_softc(device_get_parent(dev)); 1290 1291 /* 1292 * Not much to do here. We always know there will be 1293 * at least one XMAC present, and if there are two, 1294 * skc_attach() will create a second device instance 1295 * for us. 1296 */ 1297 switch (sc->sk_type) { 1298 case SK_GENESIS: 1299 device_set_desc(dev, "XaQti Corp. XMAC II"); 1300 break; 1301 case SK_YUKON: 1302 case SK_YUKON_LITE: 1303 case SK_YUKON_LP: 1304 device_set_desc(dev, "Marvell Semiconductor, Inc. Yukon"); 1305 break; 1306 } 1307 1308 return (BUS_PROBE_DEFAULT); 1309 } 1310 1311 /* 1312 * Each XMAC chip is attached as a separate logical IP interface. 1313 * Single port cards will have only one logical interface of course. 1314 */ 1315 static int 1316 sk_attach(dev) 1317 device_t dev; 1318 { 1319 struct sk_softc *sc; 1320 struct sk_if_softc *sc_if; 1321 struct ifnet *ifp; 1322 u_int32_t r; 1323 int error, i, phy, port; 1324 u_char eaddr[6]; 1325 u_char inv_mac[] = {0, 0, 0, 0, 0, 0}; 1326 1327 if (dev == NULL) 1328 return(EINVAL); 1329 1330 error = 0; 1331 sc_if = device_get_softc(dev); 1332 sc = device_get_softc(device_get_parent(dev)); 1333 port = *(int *)device_get_ivars(dev); 1334 1335 sc_if->sk_if_dev = dev; 1336 sc_if->sk_port = port; 1337 sc_if->sk_softc = sc; 1338 sc->sk_if[port] = sc_if; 1339 if (port == SK_PORT_A) 1340 sc_if->sk_tx_bmu = SK_BMU_TXS_CSR0; 1341 if (port == SK_PORT_B) 1342 sc_if->sk_tx_bmu = SK_BMU_TXS_CSR1; 1343 1344 callout_init_mtx(&sc_if->sk_tick_ch, &sc_if->sk_softc->sk_mtx, 0); 1345 callout_init_mtx(&sc_if->sk_watchdog_ch, &sc_if->sk_softc->sk_mtx, 0); 1346 1347 if (sk_dma_alloc(sc_if) != 0) { 1348 error = ENOMEM; 1349 goto fail; 1350 } 1351 sk_dma_jumbo_alloc(sc_if); 1352 1353 ifp = sc_if->sk_ifp = if_alloc(IFT_ETHER); 1354 if (ifp == NULL) { 1355 device_printf(sc_if->sk_if_dev, "can not if_alloc()\n"); 1356 error = ENOSPC; 1357 goto fail; 1358 } 1359 ifp->if_softc = sc_if; 1360 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 1361 ifp->if_mtu = ETHERMTU; 1362 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1363 /* 1364 * SK_GENESIS has a bug in checksum offload - From linux. 1365 */ 1366 if (sc_if->sk_softc->sk_type != SK_GENESIS) { 1367 ifp->if_capabilities = IFCAP_TXCSUM | IFCAP_RXCSUM; 1368 ifp->if_hwassist = 0; 1369 } else { 1370 ifp->if_capabilities = 0; 1371 ifp->if_hwassist = 0; 1372 } 1373 ifp->if_capenable = ifp->if_capabilities; 1374 /* 1375 * Some revision of Yukon controller generates corrupted 1376 * frame when TX checksum offloading is enabled. The 1377 * frame has a valid checksum value so payload might be 1378 * modified during TX checksum calculation. Disable TX 1379 * checksum offloading but give users chance to enable it 1380 * when they know their controller works without problems 1381 * with TX checksum offloading. 1382 */ 1383 ifp->if_capenable &= ~IFCAP_TXCSUM; 1384 ifp->if_ioctl = sk_ioctl; 1385 ifp->if_start = sk_start; 1386 ifp->if_init = sk_init; 1387 IFQ_SET_MAXLEN(&ifp->if_snd, SK_TX_RING_CNT - 1); 1388 ifp->if_snd.ifq_drv_maxlen = SK_TX_RING_CNT - 1; 1389 IFQ_SET_READY(&ifp->if_snd); 1390 1391 /* 1392 * Get station address for this interface. Note that 1393 * dual port cards actually come with three station 1394 * addresses: one for each port, plus an extra. The 1395 * extra one is used by the SysKonnect driver software 1396 * as a 'virtual' station address for when both ports 1397 * are operating in failover mode. Currently we don't 1398 * use this extra address. 1399 */ 1400 SK_IF_LOCK(sc_if); 1401 for (i = 0; i < ETHER_ADDR_LEN; i++) 1402 eaddr[i] = 1403 sk_win_read_1(sc, SK_MAC0_0 + (port * 8) + i); 1404 1405 /* Verify whether the station address is invalid or not. */ 1406 if (bcmp(eaddr, inv_mac, sizeof(inv_mac)) == 0) { 1407 device_printf(sc_if->sk_if_dev, 1408 "Generating random ethernet address\n"); 1409 r = arc4random(); 1410 /* 1411 * Set OUI to convenient locally assigned address. 'b' 1412 * is 0x62, which has the locally assigned bit set, and 1413 * the broadcast/multicast bit clear. 1414 */ 1415 eaddr[0] = 'b'; 1416 eaddr[1] = 's'; 1417 eaddr[2] = 'd'; 1418 eaddr[3] = (r >> 16) & 0xff; 1419 eaddr[4] = (r >> 8) & 0xff; 1420 eaddr[5] = (r >> 0) & 0xff; 1421 } 1422 /* 1423 * Set up RAM buffer addresses. The NIC will have a certain 1424 * amount of SRAM on it, somewhere between 512K and 2MB. We 1425 * need to divide this up a) between the transmitter and 1426 * receiver and b) between the two XMACs, if this is a 1427 * dual port NIC. Our algotithm is to divide up the memory 1428 * evenly so that everyone gets a fair share. 1429 * 1430 * Just to be contrary, Yukon2 appears to have separate memory 1431 * for each MAC. 1432 */ 1433 if (sk_win_read_1(sc, SK_CONFIG) & SK_CONFIG_SINGLEMAC) { 1434 u_int32_t chunk, val; 1435 1436 chunk = sc->sk_ramsize / 2; 1437 val = sc->sk_rboff / sizeof(u_int64_t); 1438 sc_if->sk_rx_ramstart = val; 1439 val += (chunk / sizeof(u_int64_t)); 1440 sc_if->sk_rx_ramend = val - 1; 1441 sc_if->sk_tx_ramstart = val; 1442 val += (chunk / sizeof(u_int64_t)); 1443 sc_if->sk_tx_ramend = val - 1; 1444 } else { 1445 u_int32_t chunk, val; 1446 1447 chunk = sc->sk_ramsize / 4; 1448 val = (sc->sk_rboff + (chunk * 2 * sc_if->sk_port)) / 1449 sizeof(u_int64_t); 1450 sc_if->sk_rx_ramstart = val; 1451 val += (chunk / sizeof(u_int64_t)); 1452 sc_if->sk_rx_ramend = val - 1; 1453 sc_if->sk_tx_ramstart = val; 1454 val += (chunk / sizeof(u_int64_t)); 1455 sc_if->sk_tx_ramend = val - 1; 1456 } 1457 1458 /* Read and save PHY type and set PHY address */ 1459 sc_if->sk_phytype = sk_win_read_1(sc, SK_EPROM1) & 0xF; 1460 if (!SK_YUKON_FAMILY(sc->sk_type)) { 1461 switch(sc_if->sk_phytype) { 1462 case SK_PHYTYPE_XMAC: 1463 sc_if->sk_phyaddr = SK_PHYADDR_XMAC; 1464 break; 1465 case SK_PHYTYPE_BCOM: 1466 sc_if->sk_phyaddr = SK_PHYADDR_BCOM; 1467 break; 1468 default: 1469 device_printf(sc->sk_dev, "unsupported PHY type: %d\n", 1470 sc_if->sk_phytype); 1471 error = ENODEV; 1472 SK_IF_UNLOCK(sc_if); 1473 goto fail; 1474 } 1475 } else { 1476 if (sc_if->sk_phytype < SK_PHYTYPE_MARV_COPPER && 1477 sc->sk_pmd != 'S') { 1478 /* not initialized, punt */ 1479 sc_if->sk_phytype = SK_PHYTYPE_MARV_COPPER; 1480 sc->sk_coppertype = 1; 1481 } 1482 1483 sc_if->sk_phyaddr = SK_PHYADDR_MARV; 1484 1485 if (!(sc->sk_coppertype)) 1486 sc_if->sk_phytype = SK_PHYTYPE_MARV_FIBER; 1487 } 1488 1489 /* 1490 * Call MI attach routine. Can't hold locks when calling into ether_*. 1491 */ 1492 SK_IF_UNLOCK(sc_if); 1493 ether_ifattach(ifp, eaddr); 1494 SK_IF_LOCK(sc_if); 1495 1496 /* 1497 * The hardware should be ready for VLAN_MTU by default: 1498 * XMAC II has 0x8100 in VLAN Tag Level 1 register initially; 1499 * YU_SMR_MFL_VLAN is set by this driver in Yukon. 1500 * 1501 */ 1502 ifp->if_capabilities |= IFCAP_VLAN_MTU; 1503 ifp->if_capenable |= IFCAP_VLAN_MTU; 1504 /* 1505 * Tell the upper layer(s) we support long frames. 1506 * Must appear after the call to ether_ifattach() because 1507 * ether_ifattach() sets ifi_hdrlen to the default value. 1508 */ 1509 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 1510 1511 /* 1512 * Do miibus setup. 1513 */ 1514 phy = MII_PHY_ANY; 1515 switch (sc->sk_type) { 1516 case SK_GENESIS: 1517 sk_init_xmac(sc_if); 1518 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC) 1519 phy = 0; 1520 break; 1521 case SK_YUKON: 1522 case SK_YUKON_LITE: 1523 case SK_YUKON_LP: 1524 sk_init_yukon(sc_if); 1525 phy = 0; 1526 break; 1527 } 1528 1529 SK_IF_UNLOCK(sc_if); 1530 error = mii_attach(dev, &sc_if->sk_miibus, ifp, sk_ifmedia_upd, 1531 sk_ifmedia_sts, BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, 0); 1532 if (error != 0) { 1533 device_printf(sc_if->sk_if_dev, "attaching PHYs failed\n"); 1534 ether_ifdetach(ifp); 1535 goto fail; 1536 } 1537 1538 fail: 1539 if (error) { 1540 /* Access should be ok even though lock has been dropped */ 1541 sc->sk_if[port] = NULL; 1542 sk_detach(dev); 1543 } 1544 1545 return(error); 1546 } 1547 1548 /* 1549 * Attach the interface. Allocate softc structures, do ifmedia 1550 * setup and ethernet/BPF attach. 1551 */ 1552 static int 1553 skc_attach(dev) 1554 device_t dev; 1555 { 1556 struct sk_softc *sc; 1557 int error = 0, *port; 1558 uint8_t skrs; 1559 const char *pname = NULL; 1560 char *revstr; 1561 1562 sc = device_get_softc(dev); 1563 sc->sk_dev = dev; 1564 1565 mtx_init(&sc->sk_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 1566 MTX_DEF); 1567 mtx_init(&sc->sk_mii_mtx, "sk_mii_mutex", NULL, MTX_DEF); 1568 /* 1569 * Map control/status registers. 1570 */ 1571 pci_enable_busmaster(dev); 1572 1573 /* Allocate resources */ 1574 #ifdef SK_USEIOSPACE 1575 sc->sk_res_spec = sk_res_spec_io; 1576 #else 1577 sc->sk_res_spec = sk_res_spec_mem; 1578 #endif 1579 error = bus_alloc_resources(dev, sc->sk_res_spec, sc->sk_res); 1580 if (error) { 1581 if (sc->sk_res_spec == sk_res_spec_mem) 1582 sc->sk_res_spec = sk_res_spec_io; 1583 else 1584 sc->sk_res_spec = sk_res_spec_mem; 1585 error = bus_alloc_resources(dev, sc->sk_res_spec, sc->sk_res); 1586 if (error) { 1587 device_printf(dev, "couldn't allocate %s resources\n", 1588 sc->sk_res_spec == sk_res_spec_mem ? "memory" : 1589 "I/O"); 1590 goto fail; 1591 } 1592 } 1593 1594 sc->sk_type = sk_win_read_1(sc, SK_CHIPVER); 1595 sc->sk_rev = (sk_win_read_1(sc, SK_CONFIG) >> 4) & 0xf; 1596 1597 /* Bail out if chip is not recognized. */ 1598 if (sc->sk_type != SK_GENESIS && !SK_YUKON_FAMILY(sc->sk_type)) { 1599 device_printf(dev, "unknown device: chipver=%02x, rev=%x\n", 1600 sc->sk_type, sc->sk_rev); 1601 error = ENXIO; 1602 goto fail; 1603 } 1604 1605 SYSCTL_ADD_PROC(device_get_sysctl_ctx(dev), 1606 SYSCTL_CHILDREN(device_get_sysctl_tree(dev)), 1607 OID_AUTO, "int_mod", CTLTYPE_INT|CTLFLAG_RW, 1608 &sc->sk_int_mod, 0, sysctl_hw_sk_int_mod, "I", 1609 "SK interrupt moderation"); 1610 1611 /* Pull in device tunables. */ 1612 sc->sk_int_mod = SK_IM_DEFAULT; 1613 error = resource_int_value(device_get_name(dev), device_get_unit(dev), 1614 "int_mod", &sc->sk_int_mod); 1615 if (error == 0) { 1616 if (sc->sk_int_mod < SK_IM_MIN || 1617 sc->sk_int_mod > SK_IM_MAX) { 1618 device_printf(dev, "int_mod value out of range; " 1619 "using default: %d\n", SK_IM_DEFAULT); 1620 sc->sk_int_mod = SK_IM_DEFAULT; 1621 } 1622 } 1623 1624 /* Reset the adapter. */ 1625 sk_reset(sc); 1626 1627 skrs = sk_win_read_1(sc, SK_EPROM0); 1628 if (sc->sk_type == SK_GENESIS) { 1629 /* Read and save RAM size and RAMbuffer offset */ 1630 switch(skrs) { 1631 case SK_RAMSIZE_512K_64: 1632 sc->sk_ramsize = 0x80000; 1633 sc->sk_rboff = SK_RBOFF_0; 1634 break; 1635 case SK_RAMSIZE_1024K_64: 1636 sc->sk_ramsize = 0x100000; 1637 sc->sk_rboff = SK_RBOFF_80000; 1638 break; 1639 case SK_RAMSIZE_1024K_128: 1640 sc->sk_ramsize = 0x100000; 1641 sc->sk_rboff = SK_RBOFF_0; 1642 break; 1643 case SK_RAMSIZE_2048K_128: 1644 sc->sk_ramsize = 0x200000; 1645 sc->sk_rboff = SK_RBOFF_0; 1646 break; 1647 default: 1648 device_printf(dev, "unknown ram size: %d\n", skrs); 1649 error = ENXIO; 1650 goto fail; 1651 } 1652 } else { /* SK_YUKON_FAMILY */ 1653 if (skrs == 0x00) 1654 sc->sk_ramsize = 0x20000; 1655 else 1656 sc->sk_ramsize = skrs * (1<<12); 1657 sc->sk_rboff = SK_RBOFF_0; 1658 } 1659 1660 /* Read and save physical media type */ 1661 sc->sk_pmd = sk_win_read_1(sc, SK_PMDTYPE); 1662 1663 if (sc->sk_pmd == 'T' || sc->sk_pmd == '1') 1664 sc->sk_coppertype = 1; 1665 else 1666 sc->sk_coppertype = 0; 1667 1668 /* Determine whether to name it with VPD PN or just make it up. 1669 * Marvell Yukon VPD PN seems to freqently be bogus. */ 1670 switch (pci_get_device(dev)) { 1671 case DEVICEID_SK_V1: 1672 case DEVICEID_BELKIN_5005: 1673 case DEVICEID_3COM_3C940: 1674 case DEVICEID_LINKSYS_EG1032: 1675 case DEVICEID_DLINK_DGE530T_A1: 1676 case DEVICEID_DLINK_DGE530T_B1: 1677 /* Stay with VPD PN. */ 1678 (void) pci_get_vpd_ident(dev, &pname); 1679 break; 1680 case DEVICEID_SK_V2: 1681 /* YUKON VPD PN might bear no resemblance to reality. */ 1682 switch (sc->sk_type) { 1683 case SK_GENESIS: 1684 /* Stay with VPD PN. */ 1685 (void) pci_get_vpd_ident(dev, &pname); 1686 break; 1687 case SK_YUKON: 1688 pname = "Marvell Yukon Gigabit Ethernet"; 1689 break; 1690 case SK_YUKON_LITE: 1691 pname = "Marvell Yukon Lite Gigabit Ethernet"; 1692 break; 1693 case SK_YUKON_LP: 1694 pname = "Marvell Yukon LP Gigabit Ethernet"; 1695 break; 1696 default: 1697 pname = "Marvell Yukon (Unknown) Gigabit Ethernet"; 1698 break; 1699 } 1700 1701 /* Yukon Lite Rev. A0 needs special test. */ 1702 if (sc->sk_type == SK_YUKON || sc->sk_type == SK_YUKON_LP) { 1703 u_int32_t far; 1704 u_int8_t testbyte; 1705 1706 /* Save flash address register before testing. */ 1707 far = sk_win_read_4(sc, SK_EP_ADDR); 1708 1709 sk_win_write_1(sc, SK_EP_ADDR+0x03, 0xff); 1710 testbyte = sk_win_read_1(sc, SK_EP_ADDR+0x03); 1711 1712 if (testbyte != 0x00) { 1713 /* Yukon Lite Rev. A0 detected. */ 1714 sc->sk_type = SK_YUKON_LITE; 1715 sc->sk_rev = SK_YUKON_LITE_REV_A0; 1716 /* Restore flash address register. */ 1717 sk_win_write_4(sc, SK_EP_ADDR, far); 1718 } 1719 } 1720 break; 1721 default: 1722 device_printf(dev, "unknown device: vendor=%04x, device=%04x, " 1723 "chipver=%02x, rev=%x\n", 1724 pci_get_vendor(dev), pci_get_device(dev), 1725 sc->sk_type, sc->sk_rev); 1726 error = ENXIO; 1727 goto fail; 1728 } 1729 1730 if (sc->sk_type == SK_YUKON_LITE) { 1731 switch (sc->sk_rev) { 1732 case SK_YUKON_LITE_REV_A0: 1733 revstr = "A0"; 1734 break; 1735 case SK_YUKON_LITE_REV_A1: 1736 revstr = "A1"; 1737 break; 1738 case SK_YUKON_LITE_REV_A3: 1739 revstr = "A3"; 1740 break; 1741 default: 1742 revstr = ""; 1743 break; 1744 } 1745 } else { 1746 revstr = ""; 1747 } 1748 1749 /* Announce the product name and more VPD data if there. */ 1750 if (pname != NULL) 1751 device_printf(dev, "%s rev. %s(0x%x)\n", 1752 pname, revstr, sc->sk_rev); 1753 1754 if (bootverbose) { 1755 device_printf(dev, "chip ver = 0x%02x\n", sc->sk_type); 1756 device_printf(dev, "chip rev = 0x%02x\n", sc->sk_rev); 1757 device_printf(dev, "SK_EPROM0 = 0x%02x\n", skrs); 1758 device_printf(dev, "SRAM size = 0x%06x\n", sc->sk_ramsize); 1759 } 1760 1761 sc->sk_devs[SK_PORT_A] = device_add_child(dev, "sk", -1); 1762 if (sc->sk_devs[SK_PORT_A] == NULL) { 1763 device_printf(dev, "failed to add child for PORT_A\n"); 1764 error = ENXIO; 1765 goto fail; 1766 } 1767 port = malloc(sizeof(int), M_DEVBUF, M_NOWAIT); 1768 if (port == NULL) { 1769 device_printf(dev, "failed to allocate memory for " 1770 "ivars of PORT_A\n"); 1771 error = ENXIO; 1772 goto fail; 1773 } 1774 *port = SK_PORT_A; 1775 device_set_ivars(sc->sk_devs[SK_PORT_A], port); 1776 1777 if (!(sk_win_read_1(sc, SK_CONFIG) & SK_CONFIG_SINGLEMAC)) { 1778 sc->sk_devs[SK_PORT_B] = device_add_child(dev, "sk", -1); 1779 if (sc->sk_devs[SK_PORT_B] == NULL) { 1780 device_printf(dev, "failed to add child for PORT_B\n"); 1781 error = ENXIO; 1782 goto fail; 1783 } 1784 port = malloc(sizeof(int), M_DEVBUF, M_NOWAIT); 1785 if (port == NULL) { 1786 device_printf(dev, "failed to allocate memory for " 1787 "ivars of PORT_B\n"); 1788 error = ENXIO; 1789 goto fail; 1790 } 1791 *port = SK_PORT_B; 1792 device_set_ivars(sc->sk_devs[SK_PORT_B], port); 1793 } 1794 1795 /* Turn on the 'driver is loaded' LED. */ 1796 CSR_WRITE_2(sc, SK_LED, SK_LED_GREEN_ON); 1797 1798 error = bus_generic_attach(dev); 1799 if (error) { 1800 device_printf(dev, "failed to attach port(s)\n"); 1801 goto fail; 1802 } 1803 1804 /* Hook interrupt last to avoid having to lock softc */ 1805 error = bus_setup_intr(dev, sc->sk_res[1], INTR_TYPE_NET|INTR_MPSAFE, 1806 NULL, sk_intr, sc, &sc->sk_intrhand); 1807 1808 if (error) { 1809 device_printf(dev, "couldn't set up irq\n"); 1810 goto fail; 1811 } 1812 1813 fail: 1814 if (error) 1815 skc_detach(dev); 1816 1817 return(error); 1818 } 1819 1820 /* 1821 * Shutdown hardware and free up resources. This can be called any 1822 * time after the mutex has been initialized. It is called in both 1823 * the error case in attach and the normal detach case so it needs 1824 * to be careful about only freeing resources that have actually been 1825 * allocated. 1826 */ 1827 static int 1828 sk_detach(dev) 1829 device_t dev; 1830 { 1831 struct sk_if_softc *sc_if; 1832 struct ifnet *ifp; 1833 1834 sc_if = device_get_softc(dev); 1835 KASSERT(mtx_initialized(&sc_if->sk_softc->sk_mtx), 1836 ("sk mutex not initialized in sk_detach")); 1837 SK_IF_LOCK(sc_if); 1838 1839 ifp = sc_if->sk_ifp; 1840 /* These should only be active if attach_xmac succeeded */ 1841 if (device_is_attached(dev)) { 1842 sk_stop(sc_if); 1843 /* Can't hold locks while calling detach */ 1844 SK_IF_UNLOCK(sc_if); 1845 callout_drain(&sc_if->sk_tick_ch); 1846 callout_drain(&sc_if->sk_watchdog_ch); 1847 ether_ifdetach(ifp); 1848 SK_IF_LOCK(sc_if); 1849 } 1850 if (ifp) 1851 if_free(ifp); 1852 /* 1853 * We're generally called from skc_detach() which is using 1854 * device_delete_child() to get to here. It's already trashed 1855 * miibus for us, so don't do it here or we'll panic. 1856 */ 1857 /* 1858 if (sc_if->sk_miibus != NULL) 1859 device_delete_child(dev, sc_if->sk_miibus); 1860 */ 1861 bus_generic_detach(dev); 1862 sk_dma_jumbo_free(sc_if); 1863 sk_dma_free(sc_if); 1864 SK_IF_UNLOCK(sc_if); 1865 1866 return(0); 1867 } 1868 1869 static int 1870 skc_detach(dev) 1871 device_t dev; 1872 { 1873 struct sk_softc *sc; 1874 1875 sc = device_get_softc(dev); 1876 KASSERT(mtx_initialized(&sc->sk_mtx), ("sk mutex not initialized")); 1877 1878 if (device_is_alive(dev)) { 1879 if (sc->sk_devs[SK_PORT_A] != NULL) { 1880 free(device_get_ivars(sc->sk_devs[SK_PORT_A]), M_DEVBUF); 1881 device_delete_child(dev, sc->sk_devs[SK_PORT_A]); 1882 } 1883 if (sc->sk_devs[SK_PORT_B] != NULL) { 1884 free(device_get_ivars(sc->sk_devs[SK_PORT_B]), M_DEVBUF); 1885 device_delete_child(dev, sc->sk_devs[SK_PORT_B]); 1886 } 1887 bus_generic_detach(dev); 1888 } 1889 1890 if (sc->sk_intrhand) 1891 bus_teardown_intr(dev, sc->sk_res[1], sc->sk_intrhand); 1892 bus_release_resources(dev, sc->sk_res_spec, sc->sk_res); 1893 1894 mtx_destroy(&sc->sk_mii_mtx); 1895 mtx_destroy(&sc->sk_mtx); 1896 1897 return(0); 1898 } 1899 1900 struct sk_dmamap_arg { 1901 bus_addr_t sk_busaddr; 1902 }; 1903 1904 static void 1905 sk_dmamap_cb(arg, segs, nseg, error) 1906 void *arg; 1907 bus_dma_segment_t *segs; 1908 int nseg; 1909 int error; 1910 { 1911 struct sk_dmamap_arg *ctx; 1912 1913 if (error != 0) 1914 return; 1915 1916 ctx = arg; 1917 ctx->sk_busaddr = segs[0].ds_addr; 1918 } 1919 1920 /* 1921 * Allocate jumbo buffer storage. The SysKonnect adapters support 1922 * "jumbograms" (9K frames), although SysKonnect doesn't currently 1923 * use them in their drivers. In order for us to use them, we need 1924 * large 9K receive buffers, however standard mbuf clusters are only 1925 * 2048 bytes in size. Consequently, we need to allocate and manage 1926 * our own jumbo buffer pool. Fortunately, this does not require an 1927 * excessive amount of additional code. 1928 */ 1929 static int 1930 sk_dma_alloc(sc_if) 1931 struct sk_if_softc *sc_if; 1932 { 1933 struct sk_dmamap_arg ctx; 1934 struct sk_txdesc *txd; 1935 struct sk_rxdesc *rxd; 1936 int error, i; 1937 1938 /* create parent tag */ 1939 /* 1940 * XXX 1941 * This driver should use BUS_SPACE_MAXADDR for lowaddr argument 1942 * in bus_dma_tag_create(9) as the NIC would support DAC mode. 1943 * However bz@ reported that it does not work on amd64 with > 4GB 1944 * RAM. Until we have more clues of the breakage, disable DAC mode 1945 * by limiting DMA address to be in 32bit address space. 1946 */ 1947 error = bus_dma_tag_create( 1948 bus_get_dma_tag(sc_if->sk_if_dev),/* parent */ 1949 1, 0, /* algnmnt, boundary */ 1950 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1951 BUS_SPACE_MAXADDR, /* highaddr */ 1952 NULL, NULL, /* filter, filterarg */ 1953 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 1954 0, /* nsegments */ 1955 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1956 0, /* flags */ 1957 NULL, NULL, /* lockfunc, lockarg */ 1958 &sc_if->sk_cdata.sk_parent_tag); 1959 if (error != 0) { 1960 device_printf(sc_if->sk_if_dev, 1961 "failed to create parent DMA tag\n"); 1962 goto fail; 1963 } 1964 1965 /* create tag for Tx ring */ 1966 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 1967 SK_RING_ALIGN, 0, /* algnmnt, boundary */ 1968 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1969 BUS_SPACE_MAXADDR, /* highaddr */ 1970 NULL, NULL, /* filter, filterarg */ 1971 SK_TX_RING_SZ, /* maxsize */ 1972 1, /* nsegments */ 1973 SK_TX_RING_SZ, /* maxsegsize */ 1974 0, /* flags */ 1975 NULL, NULL, /* lockfunc, lockarg */ 1976 &sc_if->sk_cdata.sk_tx_ring_tag); 1977 if (error != 0) { 1978 device_printf(sc_if->sk_if_dev, 1979 "failed to allocate Tx ring DMA tag\n"); 1980 goto fail; 1981 } 1982 1983 /* create tag for Rx ring */ 1984 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 1985 SK_RING_ALIGN, 0, /* algnmnt, boundary */ 1986 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1987 BUS_SPACE_MAXADDR, /* highaddr */ 1988 NULL, NULL, /* filter, filterarg */ 1989 SK_RX_RING_SZ, /* maxsize */ 1990 1, /* nsegments */ 1991 SK_RX_RING_SZ, /* maxsegsize */ 1992 0, /* flags */ 1993 NULL, NULL, /* lockfunc, lockarg */ 1994 &sc_if->sk_cdata.sk_rx_ring_tag); 1995 if (error != 0) { 1996 device_printf(sc_if->sk_if_dev, 1997 "failed to allocate Rx ring DMA tag\n"); 1998 goto fail; 1999 } 2000 2001 /* create tag for Tx buffers */ 2002 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 2003 1, 0, /* algnmnt, boundary */ 2004 BUS_SPACE_MAXADDR, /* lowaddr */ 2005 BUS_SPACE_MAXADDR, /* highaddr */ 2006 NULL, NULL, /* filter, filterarg */ 2007 MCLBYTES * SK_MAXTXSEGS, /* maxsize */ 2008 SK_MAXTXSEGS, /* nsegments */ 2009 MCLBYTES, /* maxsegsize */ 2010 0, /* flags */ 2011 NULL, NULL, /* lockfunc, lockarg */ 2012 &sc_if->sk_cdata.sk_tx_tag); 2013 if (error != 0) { 2014 device_printf(sc_if->sk_if_dev, 2015 "failed to allocate Tx DMA tag\n"); 2016 goto fail; 2017 } 2018 2019 /* create tag for Rx buffers */ 2020 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 2021 1, 0, /* algnmnt, boundary */ 2022 BUS_SPACE_MAXADDR, /* lowaddr */ 2023 BUS_SPACE_MAXADDR, /* highaddr */ 2024 NULL, NULL, /* filter, filterarg */ 2025 MCLBYTES, /* maxsize */ 2026 1, /* nsegments */ 2027 MCLBYTES, /* maxsegsize */ 2028 0, /* flags */ 2029 NULL, NULL, /* lockfunc, lockarg */ 2030 &sc_if->sk_cdata.sk_rx_tag); 2031 if (error != 0) { 2032 device_printf(sc_if->sk_if_dev, 2033 "failed to allocate Rx DMA tag\n"); 2034 goto fail; 2035 } 2036 2037 /* allocate DMA'able memory and load the DMA map for Tx ring */ 2038 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_tx_ring_tag, 2039 (void **)&sc_if->sk_rdata.sk_tx_ring, BUS_DMA_NOWAIT | BUS_DMA_ZERO, 2040 &sc_if->sk_cdata.sk_tx_ring_map); 2041 if (error != 0) { 2042 device_printf(sc_if->sk_if_dev, 2043 "failed to allocate DMA'able memory for Tx ring\n"); 2044 goto fail; 2045 } 2046 2047 ctx.sk_busaddr = 0; 2048 error = bus_dmamap_load(sc_if->sk_cdata.sk_tx_ring_tag, 2049 sc_if->sk_cdata.sk_tx_ring_map, sc_if->sk_rdata.sk_tx_ring, 2050 SK_TX_RING_SZ, sk_dmamap_cb, &ctx, BUS_DMA_NOWAIT); 2051 if (error != 0) { 2052 device_printf(sc_if->sk_if_dev, 2053 "failed to load DMA'able memory for Tx ring\n"); 2054 goto fail; 2055 } 2056 sc_if->sk_rdata.sk_tx_ring_paddr = ctx.sk_busaddr; 2057 2058 /* allocate DMA'able memory and load the DMA map for Rx ring */ 2059 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_rx_ring_tag, 2060 (void **)&sc_if->sk_rdata.sk_rx_ring, BUS_DMA_NOWAIT | BUS_DMA_ZERO, 2061 &sc_if->sk_cdata.sk_rx_ring_map); 2062 if (error != 0) { 2063 device_printf(sc_if->sk_if_dev, 2064 "failed to allocate DMA'able memory for Rx ring\n"); 2065 goto fail; 2066 } 2067 2068 ctx.sk_busaddr = 0; 2069 error = bus_dmamap_load(sc_if->sk_cdata.sk_rx_ring_tag, 2070 sc_if->sk_cdata.sk_rx_ring_map, sc_if->sk_rdata.sk_rx_ring, 2071 SK_RX_RING_SZ, sk_dmamap_cb, &ctx, BUS_DMA_NOWAIT); 2072 if (error != 0) { 2073 device_printf(sc_if->sk_if_dev, 2074 "failed to load DMA'able memory for Rx ring\n"); 2075 goto fail; 2076 } 2077 sc_if->sk_rdata.sk_rx_ring_paddr = ctx.sk_busaddr; 2078 2079 /* create DMA maps for Tx buffers */ 2080 for (i = 0; i < SK_TX_RING_CNT; i++) { 2081 txd = &sc_if->sk_cdata.sk_txdesc[i]; 2082 txd->tx_m = NULL; 2083 txd->tx_dmamap = NULL; 2084 error = bus_dmamap_create(sc_if->sk_cdata.sk_tx_tag, 0, 2085 &txd->tx_dmamap); 2086 if (error != 0) { 2087 device_printf(sc_if->sk_if_dev, 2088 "failed to create Tx dmamap\n"); 2089 goto fail; 2090 } 2091 } 2092 2093 /* create DMA maps for Rx buffers */ 2094 if ((error = bus_dmamap_create(sc_if->sk_cdata.sk_rx_tag, 0, 2095 &sc_if->sk_cdata.sk_rx_sparemap)) != 0) { 2096 device_printf(sc_if->sk_if_dev, 2097 "failed to create spare Rx dmamap\n"); 2098 goto fail; 2099 } 2100 for (i = 0; i < SK_RX_RING_CNT; i++) { 2101 rxd = &sc_if->sk_cdata.sk_rxdesc[i]; 2102 rxd->rx_m = NULL; 2103 rxd->rx_dmamap = NULL; 2104 error = bus_dmamap_create(sc_if->sk_cdata.sk_rx_tag, 0, 2105 &rxd->rx_dmamap); 2106 if (error != 0) { 2107 device_printf(sc_if->sk_if_dev, 2108 "failed to create Rx dmamap\n"); 2109 goto fail; 2110 } 2111 } 2112 2113 fail: 2114 return (error); 2115 } 2116 2117 static int 2118 sk_dma_jumbo_alloc(sc_if) 2119 struct sk_if_softc *sc_if; 2120 { 2121 struct sk_dmamap_arg ctx; 2122 struct sk_rxdesc *jrxd; 2123 int error, i; 2124 2125 if (jumbo_disable != 0) { 2126 device_printf(sc_if->sk_if_dev, "disabling jumbo frame support\n"); 2127 sc_if->sk_jumbo_disable = 1; 2128 return (0); 2129 } 2130 /* create tag for jumbo Rx ring */ 2131 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 2132 SK_RING_ALIGN, 0, /* algnmnt, boundary */ 2133 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 2134 BUS_SPACE_MAXADDR, /* highaddr */ 2135 NULL, NULL, /* filter, filterarg */ 2136 SK_JUMBO_RX_RING_SZ, /* maxsize */ 2137 1, /* nsegments */ 2138 SK_JUMBO_RX_RING_SZ, /* maxsegsize */ 2139 0, /* flags */ 2140 NULL, NULL, /* lockfunc, lockarg */ 2141 &sc_if->sk_cdata.sk_jumbo_rx_ring_tag); 2142 if (error != 0) { 2143 device_printf(sc_if->sk_if_dev, 2144 "failed to allocate jumbo Rx ring DMA tag\n"); 2145 goto jumbo_fail; 2146 } 2147 2148 /* create tag for jumbo Rx buffers */ 2149 error = bus_dma_tag_create(sc_if->sk_cdata.sk_parent_tag,/* parent */ 2150 1, 0, /* algnmnt, boundary */ 2151 BUS_SPACE_MAXADDR, /* lowaddr */ 2152 BUS_SPACE_MAXADDR, /* highaddr */ 2153 NULL, NULL, /* filter, filterarg */ 2154 MJUM9BYTES, /* maxsize */ 2155 1, /* nsegments */ 2156 MJUM9BYTES, /* maxsegsize */ 2157 0, /* flags */ 2158 NULL, NULL, /* lockfunc, lockarg */ 2159 &sc_if->sk_cdata.sk_jumbo_rx_tag); 2160 if (error != 0) { 2161 device_printf(sc_if->sk_if_dev, 2162 "failed to allocate jumbo Rx DMA tag\n"); 2163 goto jumbo_fail; 2164 } 2165 2166 /* allocate DMA'able memory and load the DMA map for jumbo Rx ring */ 2167 error = bus_dmamem_alloc(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2168 (void **)&sc_if->sk_rdata.sk_jumbo_rx_ring, 2169 BUS_DMA_NOWAIT|BUS_DMA_ZERO, &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_cdata.sk_tx_ring_map) 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_cdata.sk_tx_ring_map && 2232 sc_if->sk_rdata.sk_tx_ring) 2233 bus_dmamem_free(sc_if->sk_cdata.sk_tx_ring_tag, 2234 sc_if->sk_rdata.sk_tx_ring, 2235 sc_if->sk_cdata.sk_tx_ring_map); 2236 sc_if->sk_rdata.sk_tx_ring = NULL; 2237 sc_if->sk_cdata.sk_tx_ring_map = NULL; 2238 bus_dma_tag_destroy(sc_if->sk_cdata.sk_tx_ring_tag); 2239 sc_if->sk_cdata.sk_tx_ring_tag = NULL; 2240 } 2241 /* Rx ring */ 2242 if (sc_if->sk_cdata.sk_rx_ring_tag) { 2243 if (sc_if->sk_cdata.sk_rx_ring_map) 2244 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_ring_tag, 2245 sc_if->sk_cdata.sk_rx_ring_map); 2246 if (sc_if->sk_cdata.sk_rx_ring_map && 2247 sc_if->sk_rdata.sk_rx_ring) 2248 bus_dmamem_free(sc_if->sk_cdata.sk_rx_ring_tag, 2249 sc_if->sk_rdata.sk_rx_ring, 2250 sc_if->sk_cdata.sk_rx_ring_map); 2251 sc_if->sk_rdata.sk_rx_ring = NULL; 2252 sc_if->sk_cdata.sk_rx_ring_map = NULL; 2253 bus_dma_tag_destroy(sc_if->sk_cdata.sk_rx_ring_tag); 2254 sc_if->sk_cdata.sk_rx_ring_tag = NULL; 2255 } 2256 /* Tx buffers */ 2257 if (sc_if->sk_cdata.sk_tx_tag) { 2258 for (i = 0; i < SK_TX_RING_CNT; i++) { 2259 txd = &sc_if->sk_cdata.sk_txdesc[i]; 2260 if (txd->tx_dmamap) { 2261 bus_dmamap_destroy(sc_if->sk_cdata.sk_tx_tag, 2262 txd->tx_dmamap); 2263 txd->tx_dmamap = NULL; 2264 } 2265 } 2266 bus_dma_tag_destroy(sc_if->sk_cdata.sk_tx_tag); 2267 sc_if->sk_cdata.sk_tx_tag = NULL; 2268 } 2269 /* Rx buffers */ 2270 if (sc_if->sk_cdata.sk_rx_tag) { 2271 for (i = 0; i < SK_RX_RING_CNT; i++) { 2272 rxd = &sc_if->sk_cdata.sk_rxdesc[i]; 2273 if (rxd->rx_dmamap) { 2274 bus_dmamap_destroy(sc_if->sk_cdata.sk_rx_tag, 2275 rxd->rx_dmamap); 2276 rxd->rx_dmamap = NULL; 2277 } 2278 } 2279 if (sc_if->sk_cdata.sk_rx_sparemap) { 2280 bus_dmamap_destroy(sc_if->sk_cdata.sk_rx_tag, 2281 sc_if->sk_cdata.sk_rx_sparemap); 2282 sc_if->sk_cdata.sk_rx_sparemap = NULL; 2283 } 2284 bus_dma_tag_destroy(sc_if->sk_cdata.sk_rx_tag); 2285 sc_if->sk_cdata.sk_rx_tag = NULL; 2286 } 2287 2288 if (sc_if->sk_cdata.sk_parent_tag) { 2289 bus_dma_tag_destroy(sc_if->sk_cdata.sk_parent_tag); 2290 sc_if->sk_cdata.sk_parent_tag = NULL; 2291 } 2292 } 2293 2294 static void 2295 sk_dma_jumbo_free(sc_if) 2296 struct sk_if_softc *sc_if; 2297 { 2298 struct sk_rxdesc *jrxd; 2299 int i; 2300 2301 /* jumbo Rx ring */ 2302 if (sc_if->sk_cdata.sk_jumbo_rx_ring_tag) { 2303 if (sc_if->sk_cdata.sk_jumbo_rx_ring_map) 2304 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2305 sc_if->sk_cdata.sk_jumbo_rx_ring_map); 2306 if (sc_if->sk_cdata.sk_jumbo_rx_ring_map && 2307 sc_if->sk_rdata.sk_jumbo_rx_ring) 2308 bus_dmamem_free(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2309 sc_if->sk_rdata.sk_jumbo_rx_ring, 2310 sc_if->sk_cdata.sk_jumbo_rx_ring_map); 2311 sc_if->sk_rdata.sk_jumbo_rx_ring = NULL; 2312 sc_if->sk_cdata.sk_jumbo_rx_ring_map = NULL; 2313 bus_dma_tag_destroy(sc_if->sk_cdata.sk_jumbo_rx_ring_tag); 2314 sc_if->sk_cdata.sk_jumbo_rx_ring_tag = NULL; 2315 } 2316 2317 /* jumbo Rx buffers */ 2318 if (sc_if->sk_cdata.sk_jumbo_rx_tag) { 2319 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) { 2320 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[i]; 2321 if (jrxd->rx_dmamap) { 2322 bus_dmamap_destroy( 2323 sc_if->sk_cdata.sk_jumbo_rx_tag, 2324 jrxd->rx_dmamap); 2325 jrxd->rx_dmamap = NULL; 2326 } 2327 } 2328 if (sc_if->sk_cdata.sk_jumbo_rx_sparemap) { 2329 bus_dmamap_destroy(sc_if->sk_cdata.sk_jumbo_rx_tag, 2330 sc_if->sk_cdata.sk_jumbo_rx_sparemap); 2331 sc_if->sk_cdata.sk_jumbo_rx_sparemap = NULL; 2332 } 2333 bus_dma_tag_destroy(sc_if->sk_cdata.sk_jumbo_rx_tag); 2334 sc_if->sk_cdata.sk_jumbo_rx_tag = NULL; 2335 } 2336 } 2337 2338 static void 2339 sk_txcksum(ifp, m, f) 2340 struct ifnet *ifp; 2341 struct mbuf *m; 2342 struct sk_tx_desc *f; 2343 { 2344 struct ip *ip; 2345 u_int16_t offset; 2346 u_int8_t *p; 2347 2348 offset = sizeof(struct ip) + ETHER_HDR_LEN; 2349 for(; m && m->m_len == 0; m = m->m_next) 2350 ; 2351 if (m == NULL || m->m_len < ETHER_HDR_LEN) { 2352 if_printf(ifp, "%s: m_len < ETHER_HDR_LEN\n", __func__); 2353 /* checksum may be corrupted */ 2354 goto sendit; 2355 } 2356 if (m->m_len < ETHER_HDR_LEN + sizeof(u_int32_t)) { 2357 if (m->m_len != ETHER_HDR_LEN) { 2358 if_printf(ifp, "%s: m_len != ETHER_HDR_LEN\n", 2359 __func__); 2360 /* checksum may be corrupted */ 2361 goto sendit; 2362 } 2363 for(m = m->m_next; m && m->m_len == 0; m = m->m_next) 2364 ; 2365 if (m == NULL) { 2366 offset = sizeof(struct ip) + ETHER_HDR_LEN; 2367 /* checksum may be corrupted */ 2368 goto sendit; 2369 } 2370 ip = mtod(m, struct ip *); 2371 } else { 2372 p = mtod(m, u_int8_t *); 2373 p += ETHER_HDR_LEN; 2374 ip = (struct ip *)p; 2375 } 2376 offset = (ip->ip_hl << 2) + ETHER_HDR_LEN; 2377 2378 sendit: 2379 f->sk_csum_startval = 0; 2380 f->sk_csum_start = htole32(((offset + m->m_pkthdr.csum_data) & 0xffff) | 2381 (offset << 16)); 2382 } 2383 2384 static int 2385 sk_encap(sc_if, m_head) 2386 struct sk_if_softc *sc_if; 2387 struct mbuf **m_head; 2388 { 2389 struct sk_txdesc *txd; 2390 struct sk_tx_desc *f = NULL; 2391 struct mbuf *m; 2392 bus_dma_segment_t txsegs[SK_MAXTXSEGS]; 2393 u_int32_t cflags, frag, si, sk_ctl; 2394 int error, i, nseg; 2395 2396 SK_IF_LOCK_ASSERT(sc_if); 2397 2398 if ((txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txfreeq)) == NULL) 2399 return (ENOBUFS); 2400 2401 error = bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_tx_tag, 2402 txd->tx_dmamap, *m_head, txsegs, &nseg, 0); 2403 if (error == EFBIG) { 2404 m = m_defrag(*m_head, M_DONTWAIT); 2405 if (m == NULL) { 2406 m_freem(*m_head); 2407 *m_head = NULL; 2408 return (ENOMEM); 2409 } 2410 *m_head = m; 2411 error = bus_dmamap_load_mbuf_sg(sc_if->sk_cdata.sk_tx_tag, 2412 txd->tx_dmamap, *m_head, txsegs, &nseg, 0); 2413 if (error != 0) { 2414 m_freem(*m_head); 2415 *m_head = NULL; 2416 return (error); 2417 } 2418 } else if (error != 0) 2419 return (error); 2420 if (nseg == 0) { 2421 m_freem(*m_head); 2422 *m_head = NULL; 2423 return (EIO); 2424 } 2425 if (sc_if->sk_cdata.sk_tx_cnt + nseg >= SK_TX_RING_CNT) { 2426 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap); 2427 return (ENOBUFS); 2428 } 2429 2430 m = *m_head; 2431 if ((m->m_pkthdr.csum_flags & sc_if->sk_ifp->if_hwassist) != 0) 2432 cflags = SK_OPCODE_CSUM; 2433 else 2434 cflags = SK_OPCODE_DEFAULT; 2435 si = frag = sc_if->sk_cdata.sk_tx_prod; 2436 for (i = 0; i < nseg; i++) { 2437 f = &sc_if->sk_rdata.sk_tx_ring[frag]; 2438 f->sk_data_lo = htole32(SK_ADDR_LO(txsegs[i].ds_addr)); 2439 f->sk_data_hi = htole32(SK_ADDR_HI(txsegs[i].ds_addr)); 2440 sk_ctl = txsegs[i].ds_len | cflags; 2441 if (i == 0) { 2442 if (cflags == SK_OPCODE_CSUM) 2443 sk_txcksum(sc_if->sk_ifp, m, f); 2444 sk_ctl |= SK_TXCTL_FIRSTFRAG; 2445 } else 2446 sk_ctl |= SK_TXCTL_OWN; 2447 f->sk_ctl = htole32(sk_ctl); 2448 sc_if->sk_cdata.sk_tx_cnt++; 2449 SK_INC(frag, SK_TX_RING_CNT); 2450 } 2451 sc_if->sk_cdata.sk_tx_prod = frag; 2452 2453 /* set EOF on the last desciptor */ 2454 frag = (frag + SK_TX_RING_CNT - 1) % SK_TX_RING_CNT; 2455 f = &sc_if->sk_rdata.sk_tx_ring[frag]; 2456 f->sk_ctl |= htole32(SK_TXCTL_LASTFRAG | SK_TXCTL_EOF_INTR); 2457 2458 /* turn the first descriptor ownership to NIC */ 2459 f = &sc_if->sk_rdata.sk_tx_ring[si]; 2460 f->sk_ctl |= htole32(SK_TXCTL_OWN); 2461 2462 STAILQ_REMOVE_HEAD(&sc_if->sk_cdata.sk_txfreeq, tx_q); 2463 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txbusyq, txd, tx_q); 2464 txd->tx_m = m; 2465 2466 /* sync descriptors */ 2467 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap, 2468 BUS_DMASYNC_PREWRITE); 2469 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag, 2470 sc_if->sk_cdata.sk_tx_ring_map, 2471 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2472 2473 return (0); 2474 } 2475 2476 static void 2477 sk_start(ifp) 2478 struct ifnet *ifp; 2479 { 2480 struct sk_if_softc *sc_if; 2481 2482 sc_if = ifp->if_softc; 2483 2484 SK_IF_LOCK(sc_if); 2485 sk_start_locked(ifp); 2486 SK_IF_UNLOCK(sc_if); 2487 2488 return; 2489 } 2490 2491 static void 2492 sk_start_locked(ifp) 2493 struct ifnet *ifp; 2494 { 2495 struct sk_softc *sc; 2496 struct sk_if_softc *sc_if; 2497 struct mbuf *m_head; 2498 int enq; 2499 2500 sc_if = ifp->if_softc; 2501 sc = sc_if->sk_softc; 2502 2503 SK_IF_LOCK_ASSERT(sc_if); 2504 2505 for (enq = 0; !IFQ_DRV_IS_EMPTY(&ifp->if_snd) && 2506 sc_if->sk_cdata.sk_tx_cnt < SK_TX_RING_CNT - 1; ) { 2507 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); 2508 if (m_head == NULL) 2509 break; 2510 2511 /* 2512 * Pack the data into the transmit ring. If we 2513 * don't have room, set the OACTIVE flag and wait 2514 * for the NIC to drain the ring. 2515 */ 2516 if (sk_encap(sc_if, &m_head)) { 2517 if (m_head == NULL) 2518 break; 2519 IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 2520 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 2521 break; 2522 } 2523 2524 enq++; 2525 /* 2526 * If there's a BPF listener, bounce a copy of this frame 2527 * to him. 2528 */ 2529 BPF_MTAP(ifp, m_head); 2530 } 2531 2532 if (enq > 0) { 2533 /* Transmit */ 2534 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_START); 2535 2536 /* Set a timeout in case the chip goes out to lunch. */ 2537 sc_if->sk_watchdog_timer = 5; 2538 } 2539 } 2540 2541 2542 static void 2543 sk_watchdog(arg) 2544 void *arg; 2545 { 2546 struct sk_if_softc *sc_if; 2547 struct ifnet *ifp; 2548 2549 ifp = arg; 2550 sc_if = ifp->if_softc; 2551 2552 SK_IF_LOCK_ASSERT(sc_if); 2553 2554 if (sc_if->sk_watchdog_timer == 0 || --sc_if->sk_watchdog_timer) 2555 goto done; 2556 2557 /* 2558 * Reclaim first as there is a possibility of losing Tx completion 2559 * interrupts. 2560 */ 2561 sk_txeof(sc_if); 2562 if (sc_if->sk_cdata.sk_tx_cnt != 0) { 2563 if_printf(sc_if->sk_ifp, "watchdog timeout\n"); 2564 ifp->if_oerrors++; 2565 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 2566 sk_init_locked(sc_if); 2567 } 2568 2569 done: 2570 callout_reset(&sc_if->sk_watchdog_ch, hz, sk_watchdog, ifp); 2571 2572 return; 2573 } 2574 2575 static int 2576 skc_shutdown(dev) 2577 device_t dev; 2578 { 2579 struct sk_softc *sc; 2580 2581 sc = device_get_softc(dev); 2582 SK_LOCK(sc); 2583 2584 /* Turn off the 'driver is loaded' LED. */ 2585 CSR_WRITE_2(sc, SK_LED, SK_LED_GREEN_OFF); 2586 2587 /* 2588 * Reset the GEnesis controller. Doing this should also 2589 * assert the resets on the attached XMAC(s). 2590 */ 2591 sk_reset(sc); 2592 SK_UNLOCK(sc); 2593 2594 return (0); 2595 } 2596 2597 static int 2598 skc_suspend(dev) 2599 device_t dev; 2600 { 2601 struct sk_softc *sc; 2602 struct sk_if_softc *sc_if0, *sc_if1; 2603 struct ifnet *ifp0 = NULL, *ifp1 = NULL; 2604 2605 sc = device_get_softc(dev); 2606 2607 SK_LOCK(sc); 2608 2609 sc_if0 = sc->sk_if[SK_PORT_A]; 2610 sc_if1 = sc->sk_if[SK_PORT_B]; 2611 if (sc_if0 != NULL) 2612 ifp0 = sc_if0->sk_ifp; 2613 if (sc_if1 != NULL) 2614 ifp1 = sc_if1->sk_ifp; 2615 if (ifp0 != NULL) 2616 sk_stop(sc_if0); 2617 if (ifp1 != NULL) 2618 sk_stop(sc_if1); 2619 sc->sk_suspended = 1; 2620 2621 SK_UNLOCK(sc); 2622 2623 return (0); 2624 } 2625 2626 static int 2627 skc_resume(dev) 2628 device_t dev; 2629 { 2630 struct sk_softc *sc; 2631 struct sk_if_softc *sc_if0, *sc_if1; 2632 struct ifnet *ifp0 = NULL, *ifp1 = NULL; 2633 2634 sc = device_get_softc(dev); 2635 2636 SK_LOCK(sc); 2637 2638 sc_if0 = sc->sk_if[SK_PORT_A]; 2639 sc_if1 = sc->sk_if[SK_PORT_B]; 2640 if (sc_if0 != NULL) 2641 ifp0 = sc_if0->sk_ifp; 2642 if (sc_if1 != NULL) 2643 ifp1 = sc_if1->sk_ifp; 2644 if (ifp0 != NULL && ifp0->if_flags & IFF_UP) 2645 sk_init_locked(sc_if0); 2646 if (ifp1 != NULL && ifp1->if_flags & IFF_UP) 2647 sk_init_locked(sc_if1); 2648 sc->sk_suspended = 0; 2649 2650 SK_UNLOCK(sc); 2651 2652 return (0); 2653 } 2654 2655 /* 2656 * According to the data sheet from SK-NET GENESIS the hardware can compute 2657 * two Rx checksums at the same time(Each checksum start position is 2658 * programmed in Rx descriptors). However it seems that TCP/UDP checksum 2659 * does not work at least on my Yukon hardware. I tried every possible ways 2660 * to get correct checksum value but couldn't get correct one. So TCP/UDP 2661 * checksum offload was disabled at the moment and only IP checksum offload 2662 * was enabled. 2663 * As nomral IP header size is 20 bytes I can't expect it would give an 2664 * increase in throughput. However it seems it doesn't hurt performance in 2665 * my testing. If there is a more detailed information for checksum secret 2666 * of the hardware in question please contact yongari@FreeBSD.org to add 2667 * TCP/UDP checksum offload support. 2668 */ 2669 static __inline void 2670 sk_rxcksum(ifp, m, csum) 2671 struct ifnet *ifp; 2672 struct mbuf *m; 2673 u_int32_t csum; 2674 { 2675 struct ether_header *eh; 2676 struct ip *ip; 2677 int32_t hlen, len, pktlen; 2678 u_int16_t csum1, csum2, ipcsum; 2679 2680 pktlen = m->m_pkthdr.len; 2681 if (pktlen < sizeof(struct ether_header) + sizeof(struct ip)) 2682 return; 2683 eh = mtod(m, struct ether_header *); 2684 if (eh->ether_type != htons(ETHERTYPE_IP)) 2685 return; 2686 ip = (struct ip *)(eh + 1); 2687 if (ip->ip_v != IPVERSION) 2688 return; 2689 hlen = ip->ip_hl << 2; 2690 pktlen -= sizeof(struct ether_header); 2691 if (hlen < sizeof(struct ip)) 2692 return; 2693 if (ntohs(ip->ip_len) < hlen) 2694 return; 2695 if (ntohs(ip->ip_len) != pktlen) 2696 return; 2697 2698 csum1 = htons(csum & 0xffff); 2699 csum2 = htons((csum >> 16) & 0xffff); 2700 ipcsum = in_addword(csum1, ~csum2 & 0xffff); 2701 /* checksum fixup for IP options */ 2702 len = hlen - sizeof(struct ip); 2703 if (len > 0) { 2704 /* 2705 * If the second checksum value is correct we can compute IP 2706 * checksum with simple math. Unfortunately the second checksum 2707 * value is wrong so we can't verify the checksum from the 2708 * value(It seems there is some magic here to get correct 2709 * value). If the second checksum value is correct it also 2710 * means we can get TCP/UDP checksum) here. However, it still 2711 * needs pseudo header checksum calculation due to hardware 2712 * limitations. 2713 */ 2714 return; 2715 } 2716 m->m_pkthdr.csum_flags = CSUM_IP_CHECKED; 2717 if (ipcsum == 0xffff) 2718 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2719 } 2720 2721 static __inline int 2722 sk_rxvalid(sc, stat, len) 2723 struct sk_softc *sc; 2724 u_int32_t stat, len; 2725 { 2726 2727 if (sc->sk_type == SK_GENESIS) { 2728 if ((stat & XM_RXSTAT_ERRFRAME) == XM_RXSTAT_ERRFRAME || 2729 XM_RXSTAT_BYTES(stat) != len) 2730 return (0); 2731 } else { 2732 if ((stat & (YU_RXSTAT_CRCERR | YU_RXSTAT_LONGERR | 2733 YU_RXSTAT_MIIERR | YU_RXSTAT_BADFC | YU_RXSTAT_GOODFC | 2734 YU_RXSTAT_JABBER)) != 0 || 2735 (stat & YU_RXSTAT_RXOK) != YU_RXSTAT_RXOK || 2736 YU_RXSTAT_BYTES(stat) != len) 2737 return (0); 2738 } 2739 2740 return (1); 2741 } 2742 2743 static void 2744 sk_rxeof(sc_if) 2745 struct sk_if_softc *sc_if; 2746 { 2747 struct sk_softc *sc; 2748 struct mbuf *m; 2749 struct ifnet *ifp; 2750 struct sk_rx_desc *cur_rx; 2751 struct sk_rxdesc *rxd; 2752 int cons, prog; 2753 u_int32_t csum, rxstat, sk_ctl; 2754 2755 sc = sc_if->sk_softc; 2756 ifp = sc_if->sk_ifp; 2757 2758 SK_IF_LOCK_ASSERT(sc_if); 2759 2760 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag, 2761 sc_if->sk_cdata.sk_rx_ring_map, BUS_DMASYNC_POSTREAD); 2762 2763 prog = 0; 2764 for (cons = sc_if->sk_cdata.sk_rx_cons; prog < SK_RX_RING_CNT; 2765 prog++, SK_INC(cons, SK_RX_RING_CNT)) { 2766 cur_rx = &sc_if->sk_rdata.sk_rx_ring[cons]; 2767 sk_ctl = le32toh(cur_rx->sk_ctl); 2768 if ((sk_ctl & SK_RXCTL_OWN) != 0) 2769 break; 2770 rxd = &sc_if->sk_cdata.sk_rxdesc[cons]; 2771 rxstat = le32toh(cur_rx->sk_xmac_rxstat); 2772 2773 if ((sk_ctl & (SK_RXCTL_STATUS_VALID | SK_RXCTL_FIRSTFRAG | 2774 SK_RXCTL_LASTFRAG)) != (SK_RXCTL_STATUS_VALID | 2775 SK_RXCTL_FIRSTFRAG | SK_RXCTL_LASTFRAG) || 2776 SK_RXBYTES(sk_ctl) < SK_MIN_FRAMELEN || 2777 SK_RXBYTES(sk_ctl) > SK_MAX_FRAMELEN || 2778 sk_rxvalid(sc, rxstat, SK_RXBYTES(sk_ctl)) == 0) { 2779 ifp->if_ierrors++; 2780 sk_discard_rxbuf(sc_if, cons); 2781 continue; 2782 } 2783 2784 m = rxd->rx_m; 2785 csum = le32toh(cur_rx->sk_csum); 2786 if (sk_newbuf(sc_if, cons) != 0) { 2787 ifp->if_iqdrops++; 2788 /* reuse old buffer */ 2789 sk_discard_rxbuf(sc_if, cons); 2790 continue; 2791 } 2792 m->m_pkthdr.rcvif = ifp; 2793 m->m_pkthdr.len = m->m_len = SK_RXBYTES(sk_ctl); 2794 ifp->if_ipackets++; 2795 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 2796 sk_rxcksum(ifp, m, csum); 2797 SK_IF_UNLOCK(sc_if); 2798 (*ifp->if_input)(ifp, m); 2799 SK_IF_LOCK(sc_if); 2800 } 2801 2802 if (prog > 0) { 2803 sc_if->sk_cdata.sk_rx_cons = cons; 2804 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_ring_tag, 2805 sc_if->sk_cdata.sk_rx_ring_map, 2806 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2807 } 2808 } 2809 2810 static void 2811 sk_jumbo_rxeof(sc_if) 2812 struct sk_if_softc *sc_if; 2813 { 2814 struct sk_softc *sc; 2815 struct mbuf *m; 2816 struct ifnet *ifp; 2817 struct sk_rx_desc *cur_rx; 2818 struct sk_rxdesc *jrxd; 2819 int cons, prog; 2820 u_int32_t csum, rxstat, sk_ctl; 2821 2822 sc = sc_if->sk_softc; 2823 ifp = sc_if->sk_ifp; 2824 2825 SK_IF_LOCK_ASSERT(sc_if); 2826 2827 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2828 sc_if->sk_cdata.sk_jumbo_rx_ring_map, BUS_DMASYNC_POSTREAD); 2829 2830 prog = 0; 2831 for (cons = sc_if->sk_cdata.sk_jumbo_rx_cons; 2832 prog < SK_JUMBO_RX_RING_CNT; 2833 prog++, SK_INC(cons, SK_JUMBO_RX_RING_CNT)) { 2834 cur_rx = &sc_if->sk_rdata.sk_jumbo_rx_ring[cons]; 2835 sk_ctl = le32toh(cur_rx->sk_ctl); 2836 if ((sk_ctl & SK_RXCTL_OWN) != 0) 2837 break; 2838 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[cons]; 2839 rxstat = le32toh(cur_rx->sk_xmac_rxstat); 2840 2841 if ((sk_ctl & (SK_RXCTL_STATUS_VALID | SK_RXCTL_FIRSTFRAG | 2842 SK_RXCTL_LASTFRAG)) != (SK_RXCTL_STATUS_VALID | 2843 SK_RXCTL_FIRSTFRAG | SK_RXCTL_LASTFRAG) || 2844 SK_RXBYTES(sk_ctl) < SK_MIN_FRAMELEN || 2845 SK_RXBYTES(sk_ctl) > SK_JUMBO_FRAMELEN || 2846 sk_rxvalid(sc, rxstat, SK_RXBYTES(sk_ctl)) == 0) { 2847 ifp->if_ierrors++; 2848 sk_discard_jumbo_rxbuf(sc_if, cons); 2849 continue; 2850 } 2851 2852 m = jrxd->rx_m; 2853 csum = le32toh(cur_rx->sk_csum); 2854 if (sk_jumbo_newbuf(sc_if, cons) != 0) { 2855 ifp->if_iqdrops++; 2856 /* reuse old buffer */ 2857 sk_discard_jumbo_rxbuf(sc_if, cons); 2858 continue; 2859 } 2860 m->m_pkthdr.rcvif = ifp; 2861 m->m_pkthdr.len = m->m_len = SK_RXBYTES(sk_ctl); 2862 ifp->if_ipackets++; 2863 if ((ifp->if_capenable & IFCAP_RXCSUM) != 0) 2864 sk_rxcksum(ifp, m, csum); 2865 SK_IF_UNLOCK(sc_if); 2866 (*ifp->if_input)(ifp, m); 2867 SK_IF_LOCK(sc_if); 2868 } 2869 2870 if (prog > 0) { 2871 sc_if->sk_cdata.sk_jumbo_rx_cons = cons; 2872 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_ring_tag, 2873 sc_if->sk_cdata.sk_jumbo_rx_ring_map, 2874 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2875 } 2876 } 2877 2878 static void 2879 sk_txeof(sc_if) 2880 struct sk_if_softc *sc_if; 2881 { 2882 struct sk_softc *sc; 2883 struct sk_txdesc *txd; 2884 struct sk_tx_desc *cur_tx; 2885 struct ifnet *ifp; 2886 u_int32_t idx, sk_ctl; 2887 2888 sc = sc_if->sk_softc; 2889 ifp = sc_if->sk_ifp; 2890 2891 txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txbusyq); 2892 if (txd == NULL) 2893 return; 2894 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag, 2895 sc_if->sk_cdata.sk_tx_ring_map, BUS_DMASYNC_POSTREAD); 2896 /* 2897 * Go through our tx ring and free mbufs for those 2898 * frames that have been sent. 2899 */ 2900 for (idx = sc_if->sk_cdata.sk_tx_cons;; SK_INC(idx, SK_TX_RING_CNT)) { 2901 if (sc_if->sk_cdata.sk_tx_cnt <= 0) 2902 break; 2903 cur_tx = &sc_if->sk_rdata.sk_tx_ring[idx]; 2904 sk_ctl = le32toh(cur_tx->sk_ctl); 2905 if (sk_ctl & SK_TXCTL_OWN) 2906 break; 2907 sc_if->sk_cdata.sk_tx_cnt--; 2908 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2909 if ((sk_ctl & SK_TXCTL_LASTFRAG) == 0) 2910 continue; 2911 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap, 2912 BUS_DMASYNC_POSTWRITE); 2913 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag, txd->tx_dmamap); 2914 2915 ifp->if_opackets++; 2916 m_freem(txd->tx_m); 2917 txd->tx_m = NULL; 2918 STAILQ_REMOVE_HEAD(&sc_if->sk_cdata.sk_txbusyq, tx_q); 2919 STAILQ_INSERT_TAIL(&sc_if->sk_cdata.sk_txfreeq, txd, tx_q); 2920 txd = STAILQ_FIRST(&sc_if->sk_cdata.sk_txbusyq); 2921 } 2922 sc_if->sk_cdata.sk_tx_cons = idx; 2923 sc_if->sk_watchdog_timer = sc_if->sk_cdata.sk_tx_cnt > 0 ? 5 : 0; 2924 2925 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_ring_tag, 2926 sc_if->sk_cdata.sk_tx_ring_map, 2927 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2928 } 2929 2930 static void 2931 sk_tick(xsc_if) 2932 void *xsc_if; 2933 { 2934 struct sk_if_softc *sc_if; 2935 struct mii_data *mii; 2936 struct ifnet *ifp; 2937 int i; 2938 2939 sc_if = xsc_if; 2940 ifp = sc_if->sk_ifp; 2941 mii = device_get_softc(sc_if->sk_miibus); 2942 2943 if (!(ifp->if_flags & IFF_UP)) 2944 return; 2945 2946 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) { 2947 sk_intr_bcom(sc_if); 2948 return; 2949 } 2950 2951 /* 2952 * According to SysKonnect, the correct way to verify that 2953 * the link has come back up is to poll bit 0 of the GPIO 2954 * register three times. This pin has the signal from the 2955 * link_sync pin connected to it; if we read the same link 2956 * state 3 times in a row, we know the link is up. 2957 */ 2958 for (i = 0; i < 3; i++) { 2959 if (SK_XM_READ_2(sc_if, XM_GPIO) & XM_GPIO_GP0_SET) 2960 break; 2961 } 2962 2963 if (i != 3) { 2964 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if); 2965 return; 2966 } 2967 2968 /* Turn the GP0 interrupt back on. */ 2969 SK_XM_CLRBIT_2(sc_if, XM_IMR, XM_IMR_GP0_SET); 2970 SK_XM_READ_2(sc_if, XM_ISR); 2971 mii_tick(mii); 2972 callout_stop(&sc_if->sk_tick_ch); 2973 } 2974 2975 static void 2976 sk_yukon_tick(xsc_if) 2977 void *xsc_if; 2978 { 2979 struct sk_if_softc *sc_if; 2980 struct mii_data *mii; 2981 2982 sc_if = xsc_if; 2983 mii = device_get_softc(sc_if->sk_miibus); 2984 2985 mii_tick(mii); 2986 callout_reset(&sc_if->sk_tick_ch, hz, sk_yukon_tick, sc_if); 2987 } 2988 2989 static void 2990 sk_intr_bcom(sc_if) 2991 struct sk_if_softc *sc_if; 2992 { 2993 struct mii_data *mii; 2994 struct ifnet *ifp; 2995 int status; 2996 mii = device_get_softc(sc_if->sk_miibus); 2997 ifp = sc_if->sk_ifp; 2998 2999 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB); 3000 3001 /* 3002 * Read the PHY interrupt register to make sure 3003 * we clear any pending interrupts. 3004 */ 3005 status = sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM, BRGPHY_MII_ISR); 3006 3007 if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) { 3008 sk_init_xmac(sc_if); 3009 return; 3010 } 3011 3012 if (status & (BRGPHY_ISR_LNK_CHG|BRGPHY_ISR_AN_PR)) { 3013 int lstat; 3014 lstat = sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM, 3015 BRGPHY_MII_AUXSTS); 3016 3017 if (!(lstat & BRGPHY_AUXSTS_LINK) && sc_if->sk_link) { 3018 mii_mediachg(mii); 3019 /* Turn off the link LED. */ 3020 SK_IF_WRITE_1(sc_if, 0, 3021 SK_LINKLED1_CTL, SK_LINKLED_OFF); 3022 sc_if->sk_link = 0; 3023 } else if (status & BRGPHY_ISR_LNK_CHG) { 3024 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM, 3025 BRGPHY_MII_IMR, 0xFF00); 3026 mii_tick(mii); 3027 sc_if->sk_link = 1; 3028 /* Turn on the link LED. */ 3029 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, 3030 SK_LINKLED_ON|SK_LINKLED_LINKSYNC_OFF| 3031 SK_LINKLED_BLINK_OFF); 3032 } else { 3033 mii_tick(mii); 3034 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if); 3035 } 3036 } 3037 3038 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB); 3039 3040 return; 3041 } 3042 3043 static void 3044 sk_intr_xmac(sc_if) 3045 struct sk_if_softc *sc_if; 3046 { 3047 struct sk_softc *sc; 3048 u_int16_t status; 3049 3050 sc = sc_if->sk_softc; 3051 status = SK_XM_READ_2(sc_if, XM_ISR); 3052 3053 /* 3054 * Link has gone down. Start MII tick timeout to 3055 * watch for link resync. 3056 */ 3057 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC) { 3058 if (status & XM_ISR_GP0_SET) { 3059 SK_XM_SETBIT_2(sc_if, XM_IMR, XM_IMR_GP0_SET); 3060 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if); 3061 } 3062 3063 if (status & XM_ISR_AUTONEG_DONE) { 3064 callout_reset(&sc_if->sk_tick_ch, hz, sk_tick, sc_if); 3065 } 3066 } 3067 3068 if (status & XM_IMR_TX_UNDERRUN) 3069 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_FLUSH_TXFIFO); 3070 3071 if (status & XM_IMR_RX_OVERRUN) 3072 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_FLUSH_RXFIFO); 3073 3074 status = SK_XM_READ_2(sc_if, XM_ISR); 3075 3076 return; 3077 } 3078 3079 static void 3080 sk_intr_yukon(sc_if) 3081 struct sk_if_softc *sc_if; 3082 { 3083 u_int8_t status; 3084 3085 status = SK_IF_READ_1(sc_if, 0, SK_GMAC_ISR); 3086 /* RX overrun */ 3087 if ((status & SK_GMAC_INT_RX_OVER) != 0) { 3088 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST, 3089 SK_RFCTL_RX_FIFO_OVER); 3090 } 3091 /* TX underrun */ 3092 if ((status & SK_GMAC_INT_TX_UNDER) != 0) { 3093 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST, 3094 SK_TFCTL_TX_FIFO_UNDER); 3095 } 3096 } 3097 3098 static void 3099 sk_intr(xsc) 3100 void *xsc; 3101 { 3102 struct sk_softc *sc = xsc; 3103 struct sk_if_softc *sc_if0, *sc_if1; 3104 struct ifnet *ifp0 = NULL, *ifp1 = NULL; 3105 u_int32_t status; 3106 3107 SK_LOCK(sc); 3108 3109 status = CSR_READ_4(sc, SK_ISSR); 3110 if (status == 0 || status == 0xffffffff || sc->sk_suspended) 3111 goto done_locked; 3112 3113 sc_if0 = sc->sk_if[SK_PORT_A]; 3114 sc_if1 = sc->sk_if[SK_PORT_B]; 3115 3116 if (sc_if0 != NULL) 3117 ifp0 = sc_if0->sk_ifp; 3118 if (sc_if1 != NULL) 3119 ifp1 = sc_if1->sk_ifp; 3120 3121 for (; (status &= sc->sk_intrmask) != 0;) { 3122 /* Handle receive interrupts first. */ 3123 if (status & SK_ISR_RX1_EOF) { 3124 if (ifp0->if_mtu > SK_MAX_FRAMELEN) 3125 sk_jumbo_rxeof(sc_if0); 3126 else 3127 sk_rxeof(sc_if0); 3128 CSR_WRITE_4(sc, SK_BMU_RX_CSR0, 3129 SK_RXBMU_CLR_IRQ_EOF|SK_RXBMU_RX_START); 3130 } 3131 if (status & SK_ISR_RX2_EOF) { 3132 if (ifp1->if_mtu > SK_MAX_FRAMELEN) 3133 sk_jumbo_rxeof(sc_if1); 3134 else 3135 sk_rxeof(sc_if1); 3136 CSR_WRITE_4(sc, SK_BMU_RX_CSR1, 3137 SK_RXBMU_CLR_IRQ_EOF|SK_RXBMU_RX_START); 3138 } 3139 3140 /* Then transmit interrupts. */ 3141 if (status & SK_ISR_TX1_S_EOF) { 3142 sk_txeof(sc_if0); 3143 CSR_WRITE_4(sc, SK_BMU_TXS_CSR0, SK_TXBMU_CLR_IRQ_EOF); 3144 } 3145 if (status & SK_ISR_TX2_S_EOF) { 3146 sk_txeof(sc_if1); 3147 CSR_WRITE_4(sc, SK_BMU_TXS_CSR1, SK_TXBMU_CLR_IRQ_EOF); 3148 } 3149 3150 /* Then MAC interrupts. */ 3151 if (status & SK_ISR_MAC1 && 3152 ifp0->if_drv_flags & IFF_DRV_RUNNING) { 3153 if (sc->sk_type == SK_GENESIS) 3154 sk_intr_xmac(sc_if0); 3155 else 3156 sk_intr_yukon(sc_if0); 3157 } 3158 3159 if (status & SK_ISR_MAC2 && 3160 ifp1->if_drv_flags & IFF_DRV_RUNNING) { 3161 if (sc->sk_type == SK_GENESIS) 3162 sk_intr_xmac(sc_if1); 3163 else 3164 sk_intr_yukon(sc_if1); 3165 } 3166 3167 if (status & SK_ISR_EXTERNAL_REG) { 3168 if (ifp0 != NULL && 3169 sc_if0->sk_phytype == SK_PHYTYPE_BCOM) 3170 sk_intr_bcom(sc_if0); 3171 if (ifp1 != NULL && 3172 sc_if1->sk_phytype == SK_PHYTYPE_BCOM) 3173 sk_intr_bcom(sc_if1); 3174 } 3175 status = CSR_READ_4(sc, SK_ISSR); 3176 } 3177 3178 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask); 3179 3180 if (ifp0 != NULL && !IFQ_DRV_IS_EMPTY(&ifp0->if_snd)) 3181 sk_start_locked(ifp0); 3182 if (ifp1 != NULL && !IFQ_DRV_IS_EMPTY(&ifp1->if_snd)) 3183 sk_start_locked(ifp1); 3184 3185 done_locked: 3186 SK_UNLOCK(sc); 3187 } 3188 3189 static void 3190 sk_init_xmac(sc_if) 3191 struct sk_if_softc *sc_if; 3192 { 3193 struct sk_softc *sc; 3194 struct ifnet *ifp; 3195 u_int16_t eaddr[(ETHER_ADDR_LEN+1)/2]; 3196 struct sk_bcom_hack bhack[] = { 3197 { 0x18, 0x0c20 }, { 0x17, 0x0012 }, { 0x15, 0x1104 }, { 0x17, 0x0013 }, 3198 { 0x15, 0x0404 }, { 0x17, 0x8006 }, { 0x15, 0x0132 }, { 0x17, 0x8006 }, 3199 { 0x15, 0x0232 }, { 0x17, 0x800D }, { 0x15, 0x000F }, { 0x18, 0x0420 }, 3200 { 0, 0 } }; 3201 3202 SK_IF_LOCK_ASSERT(sc_if); 3203 3204 sc = sc_if->sk_softc; 3205 ifp = sc_if->sk_ifp; 3206 3207 /* Unreset the XMAC. */ 3208 SK_IF_WRITE_2(sc_if, 0, SK_TXF1_MACCTL, SK_TXMACCTL_XMAC_UNRESET); 3209 DELAY(1000); 3210 3211 /* Reset the XMAC's internal state. */ 3212 SK_XM_SETBIT_2(sc_if, XM_GPIO, XM_GPIO_RESETMAC); 3213 3214 /* Save the XMAC II revision */ 3215 sc_if->sk_xmac_rev = XM_XMAC_REV(SK_XM_READ_4(sc_if, XM_DEVID)); 3216 3217 /* 3218 * Perform additional initialization for external PHYs, 3219 * namely for the 1000baseTX cards that use the XMAC's 3220 * GMII mode. 3221 */ 3222 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) { 3223 int i = 0; 3224 u_int32_t val; 3225 3226 /* Take PHY out of reset. */ 3227 val = sk_win_read_4(sc, SK_GPIO); 3228 if (sc_if->sk_port == SK_PORT_A) 3229 val |= SK_GPIO_DIR0|SK_GPIO_DAT0; 3230 else 3231 val |= SK_GPIO_DIR2|SK_GPIO_DAT2; 3232 sk_win_write_4(sc, SK_GPIO, val); 3233 3234 /* Enable GMII mode on the XMAC. */ 3235 SK_XM_SETBIT_2(sc_if, XM_HWCFG, XM_HWCFG_GMIIMODE); 3236 3237 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM, 3238 BRGPHY_MII_BMCR, BRGPHY_BMCR_RESET); 3239 DELAY(10000); 3240 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM, 3241 BRGPHY_MII_IMR, 0xFFF0); 3242 3243 /* 3244 * Early versions of the BCM5400 apparently have 3245 * a bug that requires them to have their reserved 3246 * registers initialized to some magic values. I don't 3247 * know what the numbers do, I'm just the messenger. 3248 */ 3249 if (sk_xmac_miibus_readreg(sc_if, SK_PHYADDR_BCOM, 0x03) 3250 == 0x6041) { 3251 while(bhack[i].reg) { 3252 sk_xmac_miibus_writereg(sc_if, SK_PHYADDR_BCOM, 3253 bhack[i].reg, bhack[i].val); 3254 i++; 3255 } 3256 } 3257 } 3258 3259 /* Set station address */ 3260 bcopy(IF_LLADDR(sc_if->sk_ifp), eaddr, ETHER_ADDR_LEN); 3261 SK_XM_WRITE_2(sc_if, XM_PAR0, eaddr[0]); 3262 SK_XM_WRITE_2(sc_if, XM_PAR1, eaddr[1]); 3263 SK_XM_WRITE_2(sc_if, XM_PAR2, eaddr[2]); 3264 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_USE_STATION); 3265 3266 if (ifp->if_flags & IFF_BROADCAST) { 3267 SK_XM_CLRBIT_4(sc_if, XM_MODE, XM_MODE_RX_NOBROAD); 3268 } else { 3269 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_NOBROAD); 3270 } 3271 3272 /* We don't need the FCS appended to the packet. */ 3273 SK_XM_SETBIT_2(sc_if, XM_RXCMD, XM_RXCMD_STRIPFCS); 3274 3275 /* We want short frames padded to 60 bytes. */ 3276 SK_XM_SETBIT_2(sc_if, XM_TXCMD, XM_TXCMD_AUTOPAD); 3277 3278 /* 3279 * Enable the reception of all error frames. This is is 3280 * a necessary evil due to the design of the XMAC. The 3281 * XMAC's receive FIFO is only 8K in size, however jumbo 3282 * frames can be up to 9000 bytes in length. When bad 3283 * frame filtering is enabled, the XMAC's RX FIFO operates 3284 * in 'store and forward' mode. For this to work, the 3285 * entire frame has to fit into the FIFO, but that means 3286 * that jumbo frames larger than 8192 bytes will be 3287 * truncated. Disabling all bad frame filtering causes 3288 * the RX FIFO to operate in streaming mode, in which 3289 * case the XMAC will start transfering frames out of the 3290 * RX FIFO as soon as the FIFO threshold is reached. 3291 */ 3292 if (ifp->if_mtu > SK_MAX_FRAMELEN) { 3293 SK_XM_SETBIT_4(sc_if, XM_MODE, XM_MODE_RX_BADFRAMES| 3294 XM_MODE_RX_GIANTS|XM_MODE_RX_RUNTS|XM_MODE_RX_CRCERRS| 3295 XM_MODE_RX_INRANGELEN); 3296 SK_XM_SETBIT_2(sc_if, XM_RXCMD, XM_RXCMD_BIGPKTOK); 3297 } else 3298 SK_XM_CLRBIT_2(sc_if, XM_RXCMD, XM_RXCMD_BIGPKTOK); 3299 3300 /* 3301 * Bump up the transmit threshold. This helps hold off transmit 3302 * underruns when we're blasting traffic from both ports at once. 3303 */ 3304 SK_XM_WRITE_2(sc_if, XM_TX_REQTHRESH, SK_XM_TX_FIFOTHRESH); 3305 3306 /* Set Rx filter */ 3307 sk_rxfilter_genesis(sc_if); 3308 3309 /* Clear and enable interrupts */ 3310 SK_XM_READ_2(sc_if, XM_ISR); 3311 if (sc_if->sk_phytype == SK_PHYTYPE_XMAC) 3312 SK_XM_WRITE_2(sc_if, XM_IMR, XM_INTRS); 3313 else 3314 SK_XM_WRITE_2(sc_if, XM_IMR, 0xFFFF); 3315 3316 /* Configure MAC arbiter */ 3317 switch(sc_if->sk_xmac_rev) { 3318 case XM_XMAC_REV_B2: 3319 sk_win_write_1(sc, SK_RCINIT_RX1, SK_RCINIT_XMAC_B2); 3320 sk_win_write_1(sc, SK_RCINIT_TX1, SK_RCINIT_XMAC_B2); 3321 sk_win_write_1(sc, SK_RCINIT_RX2, SK_RCINIT_XMAC_B2); 3322 sk_win_write_1(sc, SK_RCINIT_TX2, SK_RCINIT_XMAC_B2); 3323 sk_win_write_1(sc, SK_MINIT_RX1, SK_MINIT_XMAC_B2); 3324 sk_win_write_1(sc, SK_MINIT_TX1, SK_MINIT_XMAC_B2); 3325 sk_win_write_1(sc, SK_MINIT_RX2, SK_MINIT_XMAC_B2); 3326 sk_win_write_1(sc, SK_MINIT_TX2, SK_MINIT_XMAC_B2); 3327 sk_win_write_1(sc, SK_RECOVERY_CTL, SK_RECOVERY_XMAC_B2); 3328 break; 3329 case XM_XMAC_REV_C1: 3330 sk_win_write_1(sc, SK_RCINIT_RX1, SK_RCINIT_XMAC_C1); 3331 sk_win_write_1(sc, SK_RCINIT_TX1, SK_RCINIT_XMAC_C1); 3332 sk_win_write_1(sc, SK_RCINIT_RX2, SK_RCINIT_XMAC_C1); 3333 sk_win_write_1(sc, SK_RCINIT_TX2, SK_RCINIT_XMAC_C1); 3334 sk_win_write_1(sc, SK_MINIT_RX1, SK_MINIT_XMAC_C1); 3335 sk_win_write_1(sc, SK_MINIT_TX1, SK_MINIT_XMAC_C1); 3336 sk_win_write_1(sc, SK_MINIT_RX2, SK_MINIT_XMAC_C1); 3337 sk_win_write_1(sc, SK_MINIT_TX2, SK_MINIT_XMAC_C1); 3338 sk_win_write_1(sc, SK_RECOVERY_CTL, SK_RECOVERY_XMAC_B2); 3339 break; 3340 default: 3341 break; 3342 } 3343 sk_win_write_2(sc, SK_MACARB_CTL, 3344 SK_MACARBCTL_UNRESET|SK_MACARBCTL_FASTOE_OFF); 3345 3346 sc_if->sk_link = 1; 3347 3348 return; 3349 } 3350 3351 static void 3352 sk_init_yukon(sc_if) 3353 struct sk_if_softc *sc_if; 3354 { 3355 u_int32_t phy, v; 3356 u_int16_t reg; 3357 struct sk_softc *sc; 3358 struct ifnet *ifp; 3359 u_int8_t *eaddr; 3360 int i; 3361 3362 SK_IF_LOCK_ASSERT(sc_if); 3363 3364 sc = sc_if->sk_softc; 3365 ifp = sc_if->sk_ifp; 3366 3367 if (sc->sk_type == SK_YUKON_LITE && 3368 sc->sk_rev >= SK_YUKON_LITE_REV_A3) { 3369 /* 3370 * Workaround code for COMA mode, set PHY reset. 3371 * Otherwise it will not correctly take chip out of 3372 * powerdown (coma) 3373 */ 3374 v = sk_win_read_4(sc, SK_GPIO); 3375 v |= SK_GPIO_DIR9 | SK_GPIO_DAT9; 3376 sk_win_write_4(sc, SK_GPIO, v); 3377 } 3378 3379 /* GMAC and GPHY Reset */ 3380 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, SK_GPHY_RESET_SET); 3381 SK_IF_WRITE_4(sc_if, 0, SK_GMAC_CTRL, SK_GMAC_RESET_SET); 3382 DELAY(1000); 3383 3384 if (sc->sk_type == SK_YUKON_LITE && 3385 sc->sk_rev >= SK_YUKON_LITE_REV_A3) { 3386 /* 3387 * Workaround code for COMA mode, clear PHY reset 3388 */ 3389 v = sk_win_read_4(sc, SK_GPIO); 3390 v |= SK_GPIO_DIR9; 3391 v &= ~SK_GPIO_DAT9; 3392 sk_win_write_4(sc, SK_GPIO, v); 3393 } 3394 3395 phy = SK_GPHY_INT_POL_HI | SK_GPHY_DIS_FC | SK_GPHY_DIS_SLEEP | 3396 SK_GPHY_ENA_XC | SK_GPHY_ANEG_ALL | SK_GPHY_ENA_PAUSE; 3397 3398 if (sc->sk_coppertype) 3399 phy |= SK_GPHY_COPPER; 3400 else 3401 phy |= SK_GPHY_FIBER; 3402 3403 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, phy | SK_GPHY_RESET_SET); 3404 DELAY(1000); 3405 SK_IF_WRITE_4(sc_if, 0, SK_GPHY_CTRL, phy | SK_GPHY_RESET_CLEAR); 3406 SK_IF_WRITE_4(sc_if, 0, SK_GMAC_CTRL, SK_GMAC_LOOP_OFF | 3407 SK_GMAC_PAUSE_ON | SK_GMAC_RESET_CLEAR); 3408 3409 /* unused read of the interrupt source register */ 3410 SK_IF_READ_2(sc_if, 0, SK_GMAC_ISR); 3411 3412 reg = SK_YU_READ_2(sc_if, YUKON_PAR); 3413 3414 /* MIB Counter Clear Mode set */ 3415 reg |= YU_PAR_MIB_CLR; 3416 SK_YU_WRITE_2(sc_if, YUKON_PAR, reg); 3417 3418 /* MIB Counter Clear Mode clear */ 3419 reg &= ~YU_PAR_MIB_CLR; 3420 SK_YU_WRITE_2(sc_if, YUKON_PAR, reg); 3421 3422 /* receive control reg */ 3423 SK_YU_WRITE_2(sc_if, YUKON_RCR, YU_RCR_CRCR); 3424 3425 /* transmit parameter register */ 3426 SK_YU_WRITE_2(sc_if, YUKON_TPR, YU_TPR_JAM_LEN(0x3) | 3427 YU_TPR_JAM_IPG(0xb) | YU_TPR_JAM2DATA_IPG(0x1a) ); 3428 3429 /* serial mode register */ 3430 reg = YU_SMR_DATA_BLIND(0x1c) | YU_SMR_MFL_VLAN | YU_SMR_IPG_DATA(0x1e); 3431 if (ifp->if_mtu > SK_MAX_FRAMELEN) 3432 reg |= YU_SMR_MFL_JUMBO; 3433 SK_YU_WRITE_2(sc_if, YUKON_SMR, reg); 3434 3435 /* Setup Yukon's station address */ 3436 eaddr = IF_LLADDR(sc_if->sk_ifp); 3437 for (i = 0; i < 3; i++) 3438 SK_YU_WRITE_2(sc_if, SK_MAC0_0 + i * 4, 3439 eaddr[i * 2] | eaddr[i * 2 + 1] << 8); 3440 /* Set GMAC source address of flow control. */ 3441 for (i = 0; i < 3; i++) 3442 SK_YU_WRITE_2(sc_if, YUKON_SAL1 + i * 4, 3443 eaddr[i * 2] | eaddr[i * 2 + 1] << 8); 3444 /* Set GMAC virtual address. */ 3445 for (i = 0; i < 3; i++) 3446 SK_YU_WRITE_2(sc_if, YUKON_SAL2 + i * 4, 3447 eaddr[i * 2] | eaddr[i * 2 + 1] << 8); 3448 3449 /* Set Rx filter */ 3450 sk_rxfilter_yukon(sc_if); 3451 3452 /* enable interrupt mask for counter overflows */ 3453 SK_YU_WRITE_2(sc_if, YUKON_TIMR, 0); 3454 SK_YU_WRITE_2(sc_if, YUKON_RIMR, 0); 3455 SK_YU_WRITE_2(sc_if, YUKON_TRIMR, 0); 3456 3457 /* Configure RX MAC FIFO Flush Mask */ 3458 v = YU_RXSTAT_FOFL | YU_RXSTAT_CRCERR | YU_RXSTAT_MIIERR | 3459 YU_RXSTAT_BADFC | YU_RXSTAT_GOODFC | YU_RXSTAT_RUNT | 3460 YU_RXSTAT_JABBER; 3461 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_FLUSH_MASK, v); 3462 3463 /* Disable RX MAC FIFO Flush for YUKON-Lite Rev. A0 only */ 3464 if (sc->sk_type == SK_YUKON_LITE && sc->sk_rev == SK_YUKON_LITE_REV_A0) 3465 v = SK_TFCTL_OPERATION_ON; 3466 else 3467 v = SK_TFCTL_OPERATION_ON | SK_RFCTL_FIFO_FLUSH_ON; 3468 /* Configure RX MAC FIFO */ 3469 SK_IF_WRITE_1(sc_if, 0, SK_RXMF1_CTRL_TEST, SK_RFCTL_RESET_CLEAR); 3470 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_CTRL_TEST, v); 3471 3472 /* Increase flush threshould to 64 bytes */ 3473 SK_IF_WRITE_2(sc_if, 0, SK_RXMF1_FLUSH_THRESHOLD, 3474 SK_RFCTL_FIFO_THRESHOLD + 1); 3475 3476 /* Configure TX MAC FIFO */ 3477 SK_IF_WRITE_1(sc_if, 0, SK_TXMF1_CTRL_TEST, SK_TFCTL_RESET_CLEAR); 3478 SK_IF_WRITE_2(sc_if, 0, SK_TXMF1_CTRL_TEST, SK_TFCTL_OPERATION_ON); 3479 } 3480 3481 /* 3482 * Note that to properly initialize any part of the GEnesis chip, 3483 * you first have to take it out of reset mode. 3484 */ 3485 static void 3486 sk_init(xsc) 3487 void *xsc; 3488 { 3489 struct sk_if_softc *sc_if = xsc; 3490 3491 SK_IF_LOCK(sc_if); 3492 sk_init_locked(sc_if); 3493 SK_IF_UNLOCK(sc_if); 3494 3495 return; 3496 } 3497 3498 static void 3499 sk_init_locked(sc_if) 3500 struct sk_if_softc *sc_if; 3501 { 3502 struct sk_softc *sc; 3503 struct ifnet *ifp; 3504 struct mii_data *mii; 3505 u_int16_t reg; 3506 u_int32_t imr; 3507 int error; 3508 3509 SK_IF_LOCK_ASSERT(sc_if); 3510 3511 ifp = sc_if->sk_ifp; 3512 sc = sc_if->sk_softc; 3513 mii = device_get_softc(sc_if->sk_miibus); 3514 3515 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3516 return; 3517 3518 /* Cancel pending I/O and free all RX/TX buffers. */ 3519 sk_stop(sc_if); 3520 3521 if (sc->sk_type == SK_GENESIS) { 3522 /* Configure LINK_SYNC LED */ 3523 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_ON); 3524 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, 3525 SK_LINKLED_LINKSYNC_ON); 3526 3527 /* Configure RX LED */ 3528 SK_IF_WRITE_1(sc_if, 0, SK_RXLED1_CTL, 3529 SK_RXLEDCTL_COUNTER_START); 3530 3531 /* Configure TX LED */ 3532 SK_IF_WRITE_1(sc_if, 0, SK_TXLED1_CTL, 3533 SK_TXLEDCTL_COUNTER_START); 3534 } 3535 3536 /* 3537 * Configure descriptor poll timer 3538 * 3539 * SK-NET GENESIS data sheet says that possibility of losing Start 3540 * transmit command due to CPU/cache related interim storage problems 3541 * under certain conditions. The document recommends a polling 3542 * mechanism to send a Start transmit command to initiate transfer 3543 * of ready descriptors regulary. To cope with this issue sk(4) now 3544 * enables descriptor poll timer to initiate descriptor processing 3545 * periodically as defined by SK_DPT_TIMER_MAX. However sk(4) still 3546 * issue SK_TXBMU_TX_START to Tx BMU to get fast execution of Tx 3547 * command instead of waiting for next descriptor polling time. 3548 * The same rule may apply to Rx side too but it seems that is not 3549 * needed at the moment. 3550 * Since sk(4) uses descriptor polling as a last resort there is no 3551 * need to set smaller polling time than maximum allowable one. 3552 */ 3553 SK_IF_WRITE_4(sc_if, 0, SK_DPT_INIT, SK_DPT_TIMER_MAX); 3554 3555 /* Configure I2C registers */ 3556 3557 /* Configure XMAC(s) */ 3558 switch (sc->sk_type) { 3559 case SK_GENESIS: 3560 sk_init_xmac(sc_if); 3561 break; 3562 case SK_YUKON: 3563 case SK_YUKON_LITE: 3564 case SK_YUKON_LP: 3565 sk_init_yukon(sc_if); 3566 break; 3567 } 3568 mii_mediachg(mii); 3569 3570 if (sc->sk_type == SK_GENESIS) { 3571 /* Configure MAC FIFOs */ 3572 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_UNRESET); 3573 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_END, SK_FIFO_END); 3574 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_ON); 3575 3576 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_CTL, SK_FIFO_UNRESET); 3577 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_END, SK_FIFO_END); 3578 SK_IF_WRITE_4(sc_if, 0, SK_TXF1_CTL, SK_FIFO_ON); 3579 } 3580 3581 /* Configure transmit arbiter(s) */ 3582 SK_IF_WRITE_1(sc_if, 0, SK_TXAR1_COUNTERCTL, 3583 SK_TXARCTL_ON|SK_TXARCTL_FSYNC_ON); 3584 3585 /* Configure RAMbuffers */ 3586 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_UNRESET); 3587 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_START, sc_if->sk_rx_ramstart); 3588 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_WR_PTR, sc_if->sk_rx_ramstart); 3589 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_RD_PTR, sc_if->sk_rx_ramstart); 3590 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_END, sc_if->sk_rx_ramend); 3591 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_ON); 3592 3593 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_UNRESET); 3594 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_STORENFWD_ON); 3595 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_START, sc_if->sk_tx_ramstart); 3596 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_WR_PTR, sc_if->sk_tx_ramstart); 3597 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_RD_PTR, sc_if->sk_tx_ramstart); 3598 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_END, sc_if->sk_tx_ramend); 3599 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_ON); 3600 3601 /* Configure BMUs */ 3602 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_ONLINE); 3603 if (ifp->if_mtu > SK_MAX_FRAMELEN) { 3604 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_LO, 3605 SK_ADDR_LO(SK_JUMBO_RX_RING_ADDR(sc_if, 0))); 3606 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_HI, 3607 SK_ADDR_HI(SK_JUMBO_RX_RING_ADDR(sc_if, 0))); 3608 } else { 3609 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_LO, 3610 SK_ADDR_LO(SK_RX_RING_ADDR(sc_if, 0))); 3611 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_CURADDR_HI, 3612 SK_ADDR_HI(SK_RX_RING_ADDR(sc_if, 0))); 3613 } 3614 3615 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_BMU_CSR, SK_TXBMU_ONLINE); 3616 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_CURADDR_LO, 3617 SK_ADDR_LO(SK_TX_RING_ADDR(sc_if, 0))); 3618 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_CURADDR_HI, 3619 SK_ADDR_HI(SK_TX_RING_ADDR(sc_if, 0))); 3620 3621 /* Init descriptors */ 3622 if (ifp->if_mtu > SK_MAX_FRAMELEN) 3623 error = sk_init_jumbo_rx_ring(sc_if); 3624 else 3625 error = sk_init_rx_ring(sc_if); 3626 if (error != 0) { 3627 device_printf(sc_if->sk_if_dev, 3628 "initialization failed: no memory for rx buffers\n"); 3629 sk_stop(sc_if); 3630 return; 3631 } 3632 sk_init_tx_ring(sc_if); 3633 3634 /* Set interrupt moderation if changed via sysctl. */ 3635 imr = sk_win_read_4(sc, SK_IMTIMERINIT); 3636 if (imr != SK_IM_USECS(sc->sk_int_mod, sc->sk_int_ticks)) { 3637 sk_win_write_4(sc, SK_IMTIMERINIT, SK_IM_USECS(sc->sk_int_mod, 3638 sc->sk_int_ticks)); 3639 if (bootverbose) 3640 device_printf(sc_if->sk_if_dev, 3641 "interrupt moderation is %d us.\n", 3642 sc->sk_int_mod); 3643 } 3644 3645 /* Configure interrupt handling */ 3646 CSR_READ_4(sc, SK_ISSR); 3647 if (sc_if->sk_port == SK_PORT_A) 3648 sc->sk_intrmask |= SK_INTRS1; 3649 else 3650 sc->sk_intrmask |= SK_INTRS2; 3651 3652 sc->sk_intrmask |= SK_ISR_EXTERNAL_REG; 3653 3654 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask); 3655 3656 /* Start BMUs. */ 3657 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_RX_START); 3658 3659 switch(sc->sk_type) { 3660 case SK_GENESIS: 3661 /* Enable XMACs TX and RX state machines */ 3662 SK_XM_CLRBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_IGNPAUSE); 3663 SK_XM_SETBIT_2(sc_if, XM_MMUCMD, XM_MMUCMD_TX_ENB|XM_MMUCMD_RX_ENB); 3664 break; 3665 case SK_YUKON: 3666 case SK_YUKON_LITE: 3667 case SK_YUKON_LP: 3668 reg = SK_YU_READ_2(sc_if, YUKON_GPCR); 3669 reg |= YU_GPCR_TXEN | YU_GPCR_RXEN; 3670 #if 0 3671 /* XXX disable 100Mbps and full duplex mode? */ 3672 reg &= ~(YU_GPCR_SPEED | YU_GPCR_DPLX_DIS); 3673 #endif 3674 SK_YU_WRITE_2(sc_if, YUKON_GPCR, reg); 3675 } 3676 3677 /* Activate descriptor polling timer */ 3678 SK_IF_WRITE_4(sc_if, 0, SK_DPT_TIMER_CTRL, SK_DPT_TCTL_START); 3679 /* start transfer of Tx descriptors */ 3680 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_START); 3681 3682 ifp->if_drv_flags |= IFF_DRV_RUNNING; 3683 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3684 3685 switch (sc->sk_type) { 3686 case SK_YUKON: 3687 case SK_YUKON_LITE: 3688 case SK_YUKON_LP: 3689 callout_reset(&sc_if->sk_tick_ch, hz, sk_yukon_tick, sc_if); 3690 break; 3691 } 3692 3693 callout_reset(&sc_if->sk_watchdog_ch, hz, sk_watchdog, ifp); 3694 3695 return; 3696 } 3697 3698 static void 3699 sk_stop(sc_if) 3700 struct sk_if_softc *sc_if; 3701 { 3702 int i; 3703 struct sk_softc *sc; 3704 struct sk_txdesc *txd; 3705 struct sk_rxdesc *rxd; 3706 struct sk_rxdesc *jrxd; 3707 struct ifnet *ifp; 3708 u_int32_t val; 3709 3710 SK_IF_LOCK_ASSERT(sc_if); 3711 sc = sc_if->sk_softc; 3712 ifp = sc_if->sk_ifp; 3713 3714 callout_stop(&sc_if->sk_tick_ch); 3715 callout_stop(&sc_if->sk_watchdog_ch); 3716 3717 /* stop Tx descriptor polling timer */ 3718 SK_IF_WRITE_4(sc_if, 0, SK_DPT_TIMER_CTRL, SK_DPT_TCTL_STOP); 3719 /* stop transfer of Tx descriptors */ 3720 CSR_WRITE_4(sc, sc_if->sk_tx_bmu, SK_TXBMU_TX_STOP); 3721 for (i = 0; i < SK_TIMEOUT; i++) { 3722 val = CSR_READ_4(sc, sc_if->sk_tx_bmu); 3723 if ((val & SK_TXBMU_TX_STOP) == 0) 3724 break; 3725 DELAY(1); 3726 } 3727 if (i == SK_TIMEOUT) 3728 device_printf(sc_if->sk_if_dev, 3729 "can not stop transfer of Tx descriptor\n"); 3730 /* stop transfer of Rx descriptors */ 3731 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_RX_STOP); 3732 for (i = 0; i < SK_TIMEOUT; i++) { 3733 val = SK_IF_READ_4(sc_if, 0, SK_RXQ1_BMU_CSR); 3734 if ((val & SK_RXBMU_RX_STOP) == 0) 3735 break; 3736 DELAY(1); 3737 } 3738 if (i == SK_TIMEOUT) 3739 device_printf(sc_if->sk_if_dev, 3740 "can not stop transfer of Rx descriptor\n"); 3741 3742 if (sc_if->sk_phytype == SK_PHYTYPE_BCOM) { 3743 /* Put PHY back into reset. */ 3744 val = sk_win_read_4(sc, SK_GPIO); 3745 if (sc_if->sk_port == SK_PORT_A) { 3746 val |= SK_GPIO_DIR0; 3747 val &= ~SK_GPIO_DAT0; 3748 } else { 3749 val |= SK_GPIO_DIR2; 3750 val &= ~SK_GPIO_DAT2; 3751 } 3752 sk_win_write_4(sc, SK_GPIO, val); 3753 } 3754 3755 /* Turn off various components of this interface. */ 3756 SK_XM_SETBIT_2(sc_if, XM_GPIO, XM_GPIO_RESETMAC); 3757 switch (sc->sk_type) { 3758 case SK_GENESIS: 3759 SK_IF_WRITE_2(sc_if, 0, SK_TXF1_MACCTL, SK_TXMACCTL_XMAC_RESET); 3760 SK_IF_WRITE_4(sc_if, 0, SK_RXF1_CTL, SK_FIFO_RESET); 3761 break; 3762 case SK_YUKON: 3763 case SK_YUKON_LITE: 3764 case SK_YUKON_LP: 3765 SK_IF_WRITE_1(sc_if,0, SK_RXMF1_CTRL_TEST, SK_RFCTL_RESET_SET); 3766 SK_IF_WRITE_1(sc_if,0, SK_TXMF1_CTRL_TEST, SK_TFCTL_RESET_SET); 3767 break; 3768 } 3769 SK_IF_WRITE_4(sc_if, 0, SK_RXQ1_BMU_CSR, SK_RXBMU_OFFLINE); 3770 SK_IF_WRITE_4(sc_if, 0, SK_RXRB1_CTLTST, SK_RBCTL_RESET|SK_RBCTL_OFF); 3771 SK_IF_WRITE_4(sc_if, 1, SK_TXQS1_BMU_CSR, SK_TXBMU_OFFLINE); 3772 SK_IF_WRITE_4(sc_if, 1, SK_TXRBS1_CTLTST, SK_RBCTL_RESET|SK_RBCTL_OFF); 3773 SK_IF_WRITE_1(sc_if, 0, SK_TXAR1_COUNTERCTL, SK_TXARCTL_OFF); 3774 SK_IF_WRITE_1(sc_if, 0, SK_RXLED1_CTL, SK_RXLEDCTL_COUNTER_STOP); 3775 SK_IF_WRITE_1(sc_if, 0, SK_TXLED1_CTL, SK_RXLEDCTL_COUNTER_STOP); 3776 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_OFF); 3777 SK_IF_WRITE_1(sc_if, 0, SK_LINKLED1_CTL, SK_LINKLED_LINKSYNC_OFF); 3778 3779 /* Disable interrupts */ 3780 if (sc_if->sk_port == SK_PORT_A) 3781 sc->sk_intrmask &= ~SK_INTRS1; 3782 else 3783 sc->sk_intrmask &= ~SK_INTRS2; 3784 CSR_WRITE_4(sc, SK_IMR, sc->sk_intrmask); 3785 3786 SK_XM_READ_2(sc_if, XM_ISR); 3787 SK_XM_WRITE_2(sc_if, XM_IMR, 0xFFFF); 3788 3789 /* Free RX and TX mbufs still in the queues. */ 3790 for (i = 0; i < SK_RX_RING_CNT; i++) { 3791 rxd = &sc_if->sk_cdata.sk_rxdesc[i]; 3792 if (rxd->rx_m != NULL) { 3793 bus_dmamap_sync(sc_if->sk_cdata.sk_rx_tag, 3794 rxd->rx_dmamap, BUS_DMASYNC_POSTREAD); 3795 bus_dmamap_unload(sc_if->sk_cdata.sk_rx_tag, 3796 rxd->rx_dmamap); 3797 m_freem(rxd->rx_m); 3798 rxd->rx_m = NULL; 3799 } 3800 } 3801 for (i = 0; i < SK_JUMBO_RX_RING_CNT; i++) { 3802 jrxd = &sc_if->sk_cdata.sk_jumbo_rxdesc[i]; 3803 if (jrxd->rx_m != NULL) { 3804 bus_dmamap_sync(sc_if->sk_cdata.sk_jumbo_rx_tag, 3805 jrxd->rx_dmamap, BUS_DMASYNC_POSTREAD); 3806 bus_dmamap_unload(sc_if->sk_cdata.sk_jumbo_rx_tag, 3807 jrxd->rx_dmamap); 3808 m_freem(jrxd->rx_m); 3809 jrxd->rx_m = NULL; 3810 } 3811 } 3812 for (i = 0; i < SK_TX_RING_CNT; i++) { 3813 txd = &sc_if->sk_cdata.sk_txdesc[i]; 3814 if (txd->tx_m != NULL) { 3815 bus_dmamap_sync(sc_if->sk_cdata.sk_tx_tag, 3816 txd->tx_dmamap, BUS_DMASYNC_POSTWRITE); 3817 bus_dmamap_unload(sc_if->sk_cdata.sk_tx_tag, 3818 txd->tx_dmamap); 3819 m_freem(txd->tx_m); 3820 txd->tx_m = NULL; 3821 } 3822 } 3823 3824 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING|IFF_DRV_OACTIVE); 3825 3826 return; 3827 } 3828 3829 static int 3830 sysctl_int_range(SYSCTL_HANDLER_ARGS, int low, int high) 3831 { 3832 int error, value; 3833 3834 if (!arg1) 3835 return (EINVAL); 3836 value = *(int *)arg1; 3837 error = sysctl_handle_int(oidp, &value, 0, req); 3838 if (error || !req->newptr) 3839 return (error); 3840 if (value < low || value > high) 3841 return (EINVAL); 3842 *(int *)arg1 = value; 3843 return (0); 3844 } 3845 3846 static int 3847 sysctl_hw_sk_int_mod(SYSCTL_HANDLER_ARGS) 3848 { 3849 return (sysctl_int_range(oidp, arg1, arg2, req, SK_IM_MIN, SK_IM_MAX)); 3850 } 3851