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sys/dev/netif/msk/if_msk.c
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1 /****************************************************************************** 2 * 3 * Name : sky2.c 4 * Project: Gigabit Ethernet Driver for FreeBSD 5.x/6.x 5 * Version: $Revision: 1.23 $ 6 * Date : $Date: 2005/12/22 09:04:11 $ 7 * Purpose: Main driver source file 8 * 9 *****************************************************************************/ 10 11 /****************************************************************************** 12 * 13 * LICENSE: 14 * Copyright (C) Marvell International Ltd. and/or its affiliates 15 * 16 * The computer program files contained in this folder ("Files") 17 * are provided to you under the BSD-type license terms provided 18 * below, and any use of such Files and any derivative works 19 * thereof created by you shall be governed by the following terms 20 * and conditions: 21 * 22 * - Redistributions of source code must retain the above copyright 23 * notice, this list of conditions and the following disclaimer. 24 * - Redistributions in binary form must reproduce the above 25 * copyright notice, this list of conditions and the following 26 * disclaimer in the documentation and/or other materials provided 27 * with the distribution. 28 * - Neither the name of Marvell nor the names of its contributors 29 * may be used to endorse or promote products derived from this 30 * software without specific prior written permission. 31 * 32 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 33 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 34 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 35 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 36 * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, 37 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 38 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 39 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 40 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 41 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 42 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 43 * OF THE POSSIBILITY OF SUCH DAMAGE. 44 * /LICENSE 45 * 46 *****************************************************************************/ 47 48 /*- 49 * Copyright (c) 1997, 1998, 1999, 2000 50 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 51 * 52 * Redistribution and use in source and binary forms, with or without 53 * modification, are permitted provided that the following conditions 54 * are met: 55 * 1. Redistributions of source code must retain the above copyright 56 * notice, this list of conditions and the following disclaimer. 57 * 2. Redistributions in binary form must reproduce the above copyright 58 * notice, this list of conditions and the following disclaimer in the 59 * documentation and/or other materials provided with the distribution. 60 * 3. All advertising materials mentioning features or use of this software 61 * must display the following acknowledgement: 62 * This product includes software developed by Bill Paul. 63 * 4. Neither the name of the author nor the names of any co-contributors 64 * may be used to endorse or promote products derived from this software 65 * without specific prior written permission. 66 * 67 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 68 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 69 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 70 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 71 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 72 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 73 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 74 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 75 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 76 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 77 * THE POSSIBILITY OF SUCH DAMAGE. 78 */ 79 /*- 80 * Copyright (c) 2003 Nathan L. Binkert <binkertn@umich.edu> 81 * 82 * Permission to use, copy, modify, and distribute this software for any 83 * purpose with or without fee is hereby granted, provided that the above 84 * copyright notice and this permission notice appear in all copies. 85 * 86 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 87 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 88 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 89 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 90 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 91 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 92 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 93 */ 94 95 /* $FreeBSD: src/sys/dev/msk/if_msk.c,v 1.26 2007/12/05 09:41:58 remko Exp $ */ 96 97 /* 98 * Device driver for the Marvell Yukon II Ethernet controller. 99 * Due to lack of documentation, this driver is based on the code from 100 * sk(4) and Marvell's myk(4) driver for FreeBSD 5.x. 101 */ 102 103 #include <sys/param.h> 104 #include <sys/endian.h> 105 #include <sys/kernel.h> 106 #include <sys/bus.h> 107 #include <sys/in_cksum.h> 108 #include <sys/interrupt.h> 109 #include <sys/malloc.h> 110 #include <sys/proc.h> 111 #include <sys/rman.h> 112 #include <sys/serialize.h> 113 #include <sys/socket.h> 114 #include <sys/sockio.h> 115 #include <sys/sysctl.h> 116 117 #include <net/ethernet.h> 118 #include <net/if.h> 119 #include <net/bpf.h> 120 #include <net/if_arp.h> 121 #include <net/if_dl.h> 122 #include <net/if_media.h> 123 #include <net/ifq_var.h> 124 #include <net/vlan/if_vlan_var.h> 125 126 #include <netinet/ip.h> 127 #include <netinet/ip_var.h> 128 129 #include <dev/netif/mii_layer/miivar.h> 130 131 #include <bus/pci/pcireg.h> 132 #include <bus/pci/pcivar.h> 133 134 #include "if_mskreg.h" 135 136 /* "device miibus" required. See GENERIC if you get errors here. */ 137 #include "miibus_if.h" 138 139 #define MSK_CSUM_FEATURES (CSUM_TCP | CSUM_UDP) 140 141 /* 142 * Devices supported by this driver. 143 */ 144 static const struct msk_product { 145 uint16_t msk_vendorid; 146 uint16_t msk_deviceid; 147 const char *msk_name; 148 } msk_products[] = { 149 { VENDORID_SK, DEVICEID_SK_YUKON2, 150 "SK-9Sxx Gigabit Ethernet" }, 151 { VENDORID_SK, DEVICEID_SK_YUKON2_EXPR, 152 "SK-9Exx Gigabit Ethernet"}, 153 { VENDORID_MARVELL, DEVICEID_MRVL_8021CU, 154 "Marvell Yukon 88E8021CU Gigabit Ethernet" }, 155 { VENDORID_MARVELL, DEVICEID_MRVL_8021X, 156 "Marvell Yukon 88E8021 SX/LX Gigabit Ethernet" }, 157 { VENDORID_MARVELL, DEVICEID_MRVL_8022CU, 158 "Marvell Yukon 88E8022CU Gigabit Ethernet" }, 159 { VENDORID_MARVELL, DEVICEID_MRVL_8022X, 160 "Marvell Yukon 88E8022 SX/LX Gigabit Ethernet" }, 161 { VENDORID_MARVELL, DEVICEID_MRVL_8061CU, 162 "Marvell Yukon 88E8061CU Gigabit Ethernet" }, 163 { VENDORID_MARVELL, DEVICEID_MRVL_8061X, 164 "Marvell Yukon 88E8061 SX/LX Gigabit Ethernet" }, 165 { VENDORID_MARVELL, DEVICEID_MRVL_8062CU, 166 "Marvell Yukon 88E8062CU Gigabit Ethernet" }, 167 { VENDORID_MARVELL, DEVICEID_MRVL_8062X, 168 "Marvell Yukon 88E8062 SX/LX Gigabit Ethernet" }, 169 { VENDORID_MARVELL, DEVICEID_MRVL_8035, 170 "Marvell Yukon 88E8035 Fast Ethernet" }, 171 { VENDORID_MARVELL, DEVICEID_MRVL_8036, 172 "Marvell Yukon 88E8036 Fast Ethernet" }, 173 { VENDORID_MARVELL, DEVICEID_MRVL_8038, 174 "Marvell Yukon 88E8038 Fast Ethernet" }, 175 { VENDORID_MARVELL, DEVICEID_MRVL_8039, 176 "Marvell Yukon 88E8039 Fast Ethernet" }, 177 { VENDORID_MARVELL, DEVICEID_MRVL_8040, 178 "Marvell Yukon 88E8040 Fast Ethernet" }, 179 { VENDORID_MARVELL, DEVICEID_MRVL_8040T, 180 "Marvell Yukon 88E8040T Fast Ethernet" }, 181 { VENDORID_MARVELL, DEVICEID_MRVL_8042, 182 "Marvell Yukon 88E8042 Fast Ethernet" }, 183 { VENDORID_MARVELL, DEVICEID_MRVL_8048, 184 "Marvell Yukon 88E8048 Fast Ethernet" }, 185 { VENDORID_MARVELL, DEVICEID_MRVL_4361, 186 "Marvell Yukon 88E8050 Gigabit Ethernet" }, 187 { VENDORID_MARVELL, DEVICEID_MRVL_4360, 188 "Marvell Yukon 88E8052 Gigabit Ethernet" }, 189 { VENDORID_MARVELL, DEVICEID_MRVL_4362, 190 "Marvell Yukon 88E8053 Gigabit Ethernet" }, 191 { VENDORID_MARVELL, DEVICEID_MRVL_4363, 192 "Marvell Yukon 88E8055 Gigabit Ethernet" }, 193 { VENDORID_MARVELL, DEVICEID_MRVL_4364, 194 "Marvell Yukon 88E8056 Gigabit Ethernet" }, 195 { VENDORID_MARVELL, DEVICEID_MRVL_4365, 196 "Marvell Yukon 88E8070 Gigabit Ethernet" }, 197 { VENDORID_MARVELL, DEVICEID_MRVL_436A, 198 "Marvell Yukon 88E8058 Gigabit Ethernet" }, 199 { VENDORID_MARVELL, DEVICEID_MRVL_436B, 200 "Marvell Yukon 88E8071 Gigabit Ethernet" }, 201 { VENDORID_MARVELL, DEVICEID_MRVL_436C, 202 "Marvell Yukon 88E8072 Gigabit Ethernet" }, 203 { VENDORID_MARVELL, DEVICEID_MRVL_436D, 204 "Marvell Yukon 88E8055 Gigabit Ethernet" }, 205 { VENDORID_MARVELL, DEVICEID_MRVL_4370, 206 "Marvell Yukon 88E8075 Gigabit Ethernet" }, 207 { VENDORID_MARVELL, DEVICEID_MRVL_4380, 208 "Marvell Yukon 88E8057 Gigabit Ethernet" }, 209 { VENDORID_MARVELL, DEVICEID_MRVL_4381, 210 "Marvell Yukon 88E8059 Gigabit Ethernet" }, 211 { VENDORID_DLINK, DEVICEID_DLINK_DGE550SX, 212 "D-Link 550SX Gigabit Ethernet" }, 213 { VENDORID_DLINK, DEVICEID_DLINK_DGE560T, 214 "D-Link 560T Gigabit Ethernet" }, 215 { 0, 0, NULL } 216 }; 217 218 static const char *model_name[] = { 219 "Yukon XL", 220 "Yukon EC Ultra", 221 "Yukon EX", 222 "Yukon EC", 223 "Yukon FE", 224 "Yukon FE+", 225 "Yukon Supreme", 226 "Yukon Ultra 2", 227 "Yukon Unknown", 228 "Yukon Optima" 229 }; 230 231 static int mskc_probe(device_t); 232 static int mskc_attach(device_t); 233 static int mskc_detach(device_t); 234 static int mskc_shutdown(device_t); 235 static int mskc_suspend(device_t); 236 static int mskc_resume(device_t); 237 static void mskc_intr(void *); 238 239 static void mskc_reset(struct msk_softc *); 240 static void mskc_set_imtimer(struct msk_softc *); 241 static void mskc_intr_hwerr(struct msk_softc *); 242 static int mskc_handle_events(struct msk_softc *); 243 static void mskc_phy_power(struct msk_softc *, int); 244 static int mskc_setup_rambuffer(struct msk_softc *); 245 static int mskc_status_dma_alloc(struct msk_softc *); 246 static void mskc_status_dma_free(struct msk_softc *); 247 static int mskc_sysctl_proc_limit(SYSCTL_HANDLER_ARGS); 248 static int mskc_sysctl_intr_rate(SYSCTL_HANDLER_ARGS); 249 250 static int msk_probe(device_t); 251 static int msk_attach(device_t); 252 static int msk_detach(device_t); 253 static int msk_miibus_readreg(device_t, int, int); 254 static int msk_miibus_writereg(device_t, int, int, int); 255 static void msk_miibus_statchg(device_t); 256 257 static void msk_init(void *); 258 static int msk_ioctl(struct ifnet *, u_long, caddr_t, struct ucred *); 259 static void msk_start(struct ifnet *, struct ifaltq_subque *); 260 static void msk_watchdog(struct ifnet *); 261 static int msk_mediachange(struct ifnet *); 262 static void msk_mediastatus(struct ifnet *, struct ifmediareq *); 263 264 static void msk_tick(void *); 265 static void msk_intr_phy(struct msk_if_softc *); 266 static void msk_intr_gmac(struct msk_if_softc *); 267 static __inline void 268 msk_rxput(struct msk_if_softc *); 269 static void msk_handle_hwerr(struct msk_if_softc *, uint32_t); 270 static void msk_rxeof(struct msk_if_softc *, uint32_t, int); 271 static void msk_txeof(struct msk_if_softc *, int); 272 static void msk_set_prefetch(struct msk_softc *, int, bus_addr_t, uint32_t); 273 static void msk_set_rambuffer(struct msk_if_softc *); 274 static void msk_stop(struct msk_if_softc *); 275 276 static int msk_txrx_dma_alloc(struct msk_if_softc *); 277 static void msk_txrx_dma_free(struct msk_if_softc *); 278 static int msk_init_rx_ring(struct msk_if_softc *); 279 static void msk_init_tx_ring(struct msk_if_softc *); 280 static __inline void 281 msk_discard_rxbuf(struct msk_if_softc *, int); 282 static int msk_newbuf(struct msk_if_softc *, int, int); 283 static int msk_encap(struct msk_if_softc *, struct mbuf **); 284 285 #ifdef MSK_JUMBO 286 static int msk_init_jumbo_rx_ring(struct msk_if_softc *); 287 static __inline void msk_discard_jumbo_rxbuf(struct msk_if_softc *, int); 288 static int msk_jumbo_newbuf(struct msk_if_softc *, int); 289 static void msk_jumbo_rxeof(struct msk_if_softc *, uint32_t, int); 290 static void *msk_jalloc(struct msk_if_softc *); 291 static void msk_jfree(void *, void *); 292 #endif 293 294 static int msk_phy_readreg(struct msk_if_softc *, int, int); 295 static int msk_phy_writereg(struct msk_if_softc *, int, int, int); 296 297 static void msk_rxfilter(struct msk_if_softc *); 298 static void msk_setvlan(struct msk_if_softc *, struct ifnet *); 299 static void msk_set_tx_stfwd(struct msk_if_softc *); 300 301 static int msk_dmamem_create(device_t, bus_size_t, bus_dma_tag_t *, 302 void **, bus_addr_t *, bus_dmamap_t *); 303 static void msk_dmamem_destroy(bus_dma_tag_t, void *, bus_dmamap_t); 304 305 static device_method_t mskc_methods[] = { 306 /* Device interface */ 307 DEVMETHOD(device_probe, mskc_probe), 308 DEVMETHOD(device_attach, mskc_attach), 309 DEVMETHOD(device_detach, mskc_detach), 310 DEVMETHOD(device_suspend, mskc_suspend), 311 DEVMETHOD(device_resume, mskc_resume), 312 DEVMETHOD(device_shutdown, mskc_shutdown), 313 314 /* bus interface */ 315 DEVMETHOD(bus_print_child, bus_generic_print_child), 316 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 317 318 { NULL, NULL } 319 }; 320 321 static DEFINE_CLASS_0(mskc, mskc_driver, mskc_methods, sizeof(struct msk_softc)); 322 static devclass_t mskc_devclass; 323 324 static device_method_t msk_methods[] = { 325 /* Device interface */ 326 DEVMETHOD(device_probe, msk_probe), 327 DEVMETHOD(device_attach, msk_attach), 328 DEVMETHOD(device_detach, msk_detach), 329 DEVMETHOD(device_shutdown, bus_generic_shutdown), 330 331 /* bus interface */ 332 DEVMETHOD(bus_print_child, bus_generic_print_child), 333 DEVMETHOD(bus_driver_added, bus_generic_driver_added), 334 335 /* MII interface */ 336 DEVMETHOD(miibus_readreg, msk_miibus_readreg), 337 DEVMETHOD(miibus_writereg, msk_miibus_writereg), 338 DEVMETHOD(miibus_statchg, msk_miibus_statchg), 339 340 { NULL, NULL } 341 }; 342 343 static DEFINE_CLASS_0(msk, msk_driver, msk_methods, sizeof(struct msk_if_softc)); 344 static devclass_t msk_devclass; 345 346 DECLARE_DUMMY_MODULE(if_msk); 347 DRIVER_MODULE(if_msk, pci, mskc_driver, mskc_devclass, NULL, NULL); 348 DRIVER_MODULE(if_msk, mskc, msk_driver, msk_devclass, NULL, NULL); 349 DRIVER_MODULE(miibus, msk, miibus_driver, miibus_devclass, NULL, NULL); 350 351 static int mskc_msi_enable = 0; 352 static int mskc_intr_rate = 0; 353 static int mskc_process_limit = MSK_PROC_DEFAULT; 354 355 TUNABLE_INT("hw.mskc.intr_rate", &mskc_intr_rate); 356 TUNABLE_INT("hw.mskc.process_limit", &mskc_process_limit); 357 TUNABLE_INT("hw.mskc.msi.enable", &mskc_msi_enable); 358 359 static int 360 msk_miibus_readreg(device_t dev, int phy, int reg) 361 { 362 struct msk_if_softc *sc_if; 363 364 if (phy != PHY_ADDR_MARV) 365 return (0); 366 367 sc_if = device_get_softc(dev); 368 369 return (msk_phy_readreg(sc_if, phy, reg)); 370 } 371 372 static int 373 msk_phy_readreg(struct msk_if_softc *sc_if, int phy, int reg) 374 { 375 struct msk_softc *sc; 376 int i, val; 377 378 sc = sc_if->msk_softc; 379 380 GMAC_WRITE_2(sc, sc_if->msk_port, GM_SMI_CTRL, 381 GM_SMI_CT_PHY_AD(phy) | GM_SMI_CT_REG_AD(reg) | GM_SMI_CT_OP_RD); 382 383 for (i = 0; i < MSK_TIMEOUT; i++) { 384 DELAY(1); 385 val = GMAC_READ_2(sc, sc_if->msk_port, GM_SMI_CTRL); 386 if ((val & GM_SMI_CT_RD_VAL) != 0) { 387 val = GMAC_READ_2(sc, sc_if->msk_port, GM_SMI_DATA); 388 break; 389 } 390 } 391 392 if (i == MSK_TIMEOUT) { 393 if_printf(sc_if->msk_ifp, "phy failed to come ready\n"); 394 val = 0; 395 } 396 397 return (val); 398 } 399 400 static int 401 msk_miibus_writereg(device_t dev, int phy, int reg, int val) 402 { 403 struct msk_if_softc *sc_if; 404 405 if (phy != PHY_ADDR_MARV) 406 return (0); 407 408 sc_if = device_get_softc(dev); 409 410 return (msk_phy_writereg(sc_if, phy, reg, val)); 411 } 412 413 static int 414 msk_phy_writereg(struct msk_if_softc *sc_if, int phy, int reg, int val) 415 { 416 struct msk_softc *sc; 417 int i; 418 419 sc = sc_if->msk_softc; 420 421 GMAC_WRITE_2(sc, sc_if->msk_port, GM_SMI_DATA, val); 422 GMAC_WRITE_2(sc, sc_if->msk_port, GM_SMI_CTRL, 423 GM_SMI_CT_PHY_AD(phy) | GM_SMI_CT_REG_AD(reg)); 424 for (i = 0; i < MSK_TIMEOUT; i++) { 425 DELAY(1); 426 if ((GMAC_READ_2(sc, sc_if->msk_port, GM_SMI_CTRL) & 427 GM_SMI_CT_BUSY) == 0) 428 break; 429 } 430 if (i == MSK_TIMEOUT) 431 if_printf(sc_if->msk_ifp, "phy write timeout\n"); 432 433 return (0); 434 } 435 436 static void 437 msk_miibus_statchg(device_t dev) 438 { 439 struct msk_if_softc *sc_if; 440 struct msk_softc *sc; 441 struct mii_data *mii; 442 uint32_t gmac; 443 444 sc_if = device_get_softc(dev); 445 sc = sc_if->msk_softc; 446 447 mii = device_get_softc(sc_if->msk_miibus); 448 449 sc_if->msk_link = 0; 450 if ((mii->mii_media_status & (IFM_AVALID | IFM_ACTIVE)) == 451 (IFM_AVALID | IFM_ACTIVE)) { 452 switch (IFM_SUBTYPE(mii->mii_media_active)) { 453 case IFM_10_T: 454 case IFM_100_TX: 455 sc_if->msk_link = 1; 456 break; 457 case IFM_1000_T: 458 case IFM_1000_SX: 459 case IFM_1000_LX: 460 case IFM_1000_CX: 461 if ((sc_if->msk_flags & MSK_FLAG_FASTETHER) == 0) 462 sc_if->msk_link = 1; 463 break; 464 } 465 } 466 467 if (sc_if->msk_link != 0) { 468 /* Enable Tx FIFO Underrun. */ 469 CSR_WRITE_1(sc, MR_ADDR(sc_if->msk_port, GMAC_IRQ_MSK), 470 GM_IS_TX_FF_UR | GM_IS_RX_FF_OR); 471 /* 472 * Because mii(4) notify msk(4) that it detected link status 473 * change, there is no need to enable automatic 474 * speed/flow-control/duplex updates. 475 */ 476 gmac = GM_GPCR_AU_ALL_DIS; 477 switch (IFM_SUBTYPE(mii->mii_media_active)) { 478 case IFM_1000_SX: 479 case IFM_1000_T: 480 gmac |= GM_GPCR_SPEED_1000; 481 break; 482 case IFM_100_TX: 483 gmac |= GM_GPCR_SPEED_100; 484 break; 485 case IFM_10_T: 486 break; 487 } 488 489 if ((mii->mii_media_active & IFM_GMASK) & IFM_FDX) 490 gmac |= GM_GPCR_DUP_FULL; 491 else 492 gmac |= GM_GPCR_FC_RX_DIS | GM_GPCR_FC_TX_DIS; 493 /* Disable Rx flow control. */ 494 if (((mii->mii_media_active & IFM_GMASK) & IFM_FLAG0) == 0) 495 gmac |= GM_GPCR_FC_RX_DIS; 496 /* Disable Tx flow control. */ 497 if (((mii->mii_media_active & IFM_GMASK) & IFM_FLAG1) == 0) 498 gmac |= GM_GPCR_FC_TX_DIS; 499 gmac |= GM_GPCR_RX_ENA | GM_GPCR_TX_ENA; 500 GMAC_WRITE_2(sc, sc_if->msk_port, GM_GP_CTRL, gmac); 501 /* Read again to ensure writing. */ 502 GMAC_READ_2(sc, sc_if->msk_port, GM_GP_CTRL); 503 504 gmac = GMC_PAUSE_OFF; 505 if (((mii->mii_media_active & IFM_GMASK) & IFM_FLAG0) && 506 ((mii->mii_media_active & IFM_GMASK) & IFM_FDX)) 507 gmac = GMC_PAUSE_ON; 508 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, GMAC_CTRL), gmac); 509 510 /* Enable PHY interrupt for FIFO underrun/overflow. */ 511 msk_phy_writereg(sc_if, PHY_ADDR_MARV, 512 PHY_MARV_INT_MASK, PHY_M_IS_FIFO_ERROR); 513 } else { 514 /* 515 * Link state changed to down. 516 * Disable PHY interrupts. 517 */ 518 msk_phy_writereg(sc_if, PHY_ADDR_MARV, PHY_MARV_INT_MASK, 0); 519 /* Disable Rx/Tx MAC. */ 520 gmac = GMAC_READ_2(sc, sc_if->msk_port, GM_GP_CTRL); 521 if (gmac & (GM_GPCR_RX_ENA | GM_GPCR_TX_ENA)) { 522 gmac &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); 523 GMAC_WRITE_2(sc, sc_if->msk_port, GM_GP_CTRL, gmac); 524 /* Read again to ensure writing. */ 525 GMAC_READ_2(sc, sc_if->msk_port, GM_GP_CTRL); 526 } 527 } 528 } 529 530 static void 531 msk_rxfilter(struct msk_if_softc *sc_if) 532 { 533 struct msk_softc *sc; 534 struct ifnet *ifp; 535 struct ifmultiaddr *ifma; 536 uint32_t mchash[2]; 537 uint32_t crc; 538 uint16_t mode; 539 540 sc = sc_if->msk_softc; 541 ifp = sc_if->msk_ifp; 542 543 bzero(mchash, sizeof(mchash)); 544 mode = GMAC_READ_2(sc, sc_if->msk_port, GM_RX_CTRL); 545 if ((ifp->if_flags & IFF_PROMISC) != 0) { 546 mode &= ~(GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); 547 } else if ((ifp->if_flags & IFF_ALLMULTI) != 0) { 548 mode |= (GM_RXCR_UCF_ENA | GM_RXCR_MCF_ENA); 549 mchash[0] = 0xffff; 550 mchash[1] = 0xffff; 551 } else { 552 mode |= GM_RXCR_UCF_ENA; 553 TAILQ_FOREACH(ifma, &ifp->if_multiaddrs, ifma_link) { 554 if (ifma->ifma_addr->sa_family != AF_LINK) 555 continue; 556 crc = ether_crc32_be(LLADDR((struct sockaddr_dl *) 557 ifma->ifma_addr), ETHER_ADDR_LEN); 558 /* Just want the 6 least significant bits. */ 559 crc &= 0x3f; 560 /* Set the corresponding bit in the hash table. */ 561 mchash[crc >> 5] |= 1 << (crc & 0x1f); 562 } 563 if (mchash[0] != 0 || mchash[1] != 0) 564 mode |= GM_RXCR_MCF_ENA; 565 } 566 567 GMAC_WRITE_2(sc, sc_if->msk_port, GM_MC_ADDR_H1, 568 mchash[0] & 0xffff); 569 GMAC_WRITE_2(sc, sc_if->msk_port, GM_MC_ADDR_H2, 570 (mchash[0] >> 16) & 0xffff); 571 GMAC_WRITE_2(sc, sc_if->msk_port, GM_MC_ADDR_H3, 572 mchash[1] & 0xffff); 573 GMAC_WRITE_2(sc, sc_if->msk_port, GM_MC_ADDR_H4, 574 (mchash[1] >> 16) & 0xffff); 575 GMAC_WRITE_2(sc, sc_if->msk_port, GM_RX_CTRL, mode); 576 } 577 578 static void 579 msk_setvlan(struct msk_if_softc *sc_if, struct ifnet *ifp) 580 { 581 struct msk_softc *sc; 582 583 sc = sc_if->msk_softc; 584 if ((ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0) { 585 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T), 586 RX_VLAN_STRIP_ON); 587 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), 588 TX_VLAN_TAG_ON); 589 } else { 590 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T), 591 RX_VLAN_STRIP_OFF); 592 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), 593 TX_VLAN_TAG_OFF); 594 } 595 } 596 597 static int 598 msk_init_rx_ring(struct msk_if_softc *sc_if) 599 { 600 struct msk_ring_data *rd; 601 struct msk_rxdesc *rxd; 602 int i, prod; 603 604 sc_if->msk_cdata.msk_rx_cons = 0; 605 sc_if->msk_cdata.msk_rx_prod = 0; 606 sc_if->msk_cdata.msk_rx_putwm = MSK_PUT_WM; 607 608 rd = &sc_if->msk_rdata; 609 bzero(rd->msk_rx_ring, sizeof(struct msk_rx_desc) * MSK_RX_RING_CNT); 610 prod = sc_if->msk_cdata.msk_rx_prod; 611 for (i = 0; i < MSK_RX_RING_CNT; i++) { 612 rxd = &sc_if->msk_cdata.msk_rxdesc[prod]; 613 rxd->rx_m = NULL; 614 rxd->rx_le = &rd->msk_rx_ring[prod]; 615 if (msk_newbuf(sc_if, prod, 1) != 0) 616 return (ENOBUFS); 617 MSK_INC(prod, MSK_RX_RING_CNT); 618 } 619 620 /* Update prefetch unit. */ 621 sc_if->msk_cdata.msk_rx_prod = MSK_RX_RING_CNT - 1; 622 CSR_WRITE_2(sc_if->msk_softc, 623 Y2_PREF_Q_ADDR(sc_if->msk_rxq, PREF_UNIT_PUT_IDX_REG), 624 sc_if->msk_cdata.msk_rx_prod); 625 626 return (0); 627 } 628 629 #ifdef MSK_JUMBO 630 static int 631 msk_init_jumbo_rx_ring(struct msk_if_softc *sc_if) 632 { 633 struct msk_ring_data *rd; 634 struct msk_rxdesc *rxd; 635 int i, prod; 636 637 MSK_IF_LOCK_ASSERT(sc_if); 638 639 sc_if->msk_cdata.msk_rx_cons = 0; 640 sc_if->msk_cdata.msk_rx_prod = 0; 641 sc_if->msk_cdata.msk_rx_putwm = MSK_PUT_WM; 642 643 rd = &sc_if->msk_rdata; 644 bzero(rd->msk_jumbo_rx_ring, 645 sizeof(struct msk_rx_desc) * MSK_JUMBO_RX_RING_CNT); 646 prod = sc_if->msk_cdata.msk_rx_prod; 647 for (i = 0; i < MSK_JUMBO_RX_RING_CNT; i++) { 648 rxd = &sc_if->msk_cdata.msk_jumbo_rxdesc[prod]; 649 rxd->rx_m = NULL; 650 rxd->rx_le = &rd->msk_jumbo_rx_ring[prod]; 651 if (msk_jumbo_newbuf(sc_if, prod) != 0) 652 return (ENOBUFS); 653 MSK_INC(prod, MSK_JUMBO_RX_RING_CNT); 654 } 655 656 bus_dmamap_sync(sc_if->msk_cdata.msk_jumbo_rx_ring_tag, 657 sc_if->msk_cdata.msk_jumbo_rx_ring_map, 658 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 659 660 sc_if->msk_cdata.msk_rx_prod = MSK_JUMBO_RX_RING_CNT - 1; 661 CSR_WRITE_2(sc_if->msk_softc, 662 Y2_PREF_Q_ADDR(sc_if->msk_rxq, PREF_UNIT_PUT_IDX_REG), 663 sc_if->msk_cdata.msk_rx_prod); 664 665 return (0); 666 } 667 #endif 668 669 static void 670 msk_init_tx_ring(struct msk_if_softc *sc_if) 671 { 672 struct msk_ring_data *rd; 673 struct msk_txdesc *txd; 674 int i; 675 676 sc_if->msk_cdata.msk_tx_prod = 0; 677 sc_if->msk_cdata.msk_tx_cons = 0; 678 sc_if->msk_cdata.msk_tx_cnt = 0; 679 680 rd = &sc_if->msk_rdata; 681 bzero(rd->msk_tx_ring, sizeof(struct msk_tx_desc) * MSK_TX_RING_CNT); 682 for (i = 0; i < MSK_TX_RING_CNT; i++) { 683 txd = &sc_if->msk_cdata.msk_txdesc[i]; 684 txd->tx_m = NULL; 685 txd->tx_le = &rd->msk_tx_ring[i]; 686 } 687 } 688 689 static __inline void 690 msk_discard_rxbuf(struct msk_if_softc *sc_if, int idx) 691 { 692 struct msk_rx_desc *rx_le; 693 struct msk_rxdesc *rxd; 694 struct mbuf *m; 695 696 rxd = &sc_if->msk_cdata.msk_rxdesc[idx]; 697 m = rxd->rx_m; 698 rx_le = rxd->rx_le; 699 rx_le->msk_control = htole32(m->m_len | OP_PACKET | HW_OWNER); 700 } 701 702 #ifdef MSK_JUMBO 703 static __inline void 704 msk_discard_jumbo_rxbuf(struct msk_if_softc *sc_if, int idx) 705 { 706 struct msk_rx_desc *rx_le; 707 struct msk_rxdesc *rxd; 708 struct mbuf *m; 709 710 rxd = &sc_if->msk_cdata.msk_jumbo_rxdesc[idx]; 711 m = rxd->rx_m; 712 rx_le = rxd->rx_le; 713 rx_le->msk_control = htole32(m->m_len | OP_PACKET | HW_OWNER); 714 } 715 #endif 716 717 static int 718 msk_newbuf(struct msk_if_softc *sc_if, int idx, int init) 719 { 720 struct msk_rx_desc *rx_le; 721 struct msk_rxdesc *rxd; 722 struct mbuf *m; 723 bus_dma_segment_t seg; 724 bus_dmamap_t map; 725 int error, nseg; 726 727 m = m_getcl(init ? MB_WAIT : MB_DONTWAIT, MT_DATA, M_PKTHDR); 728 if (m == NULL) 729 return (ENOBUFS); 730 731 m->m_len = m->m_pkthdr.len = MCLBYTES; 732 if ((sc_if->msk_flags & MSK_FLAG_RAMBUF) == 0) 733 m_adj(m, ETHER_ALIGN); 734 735 error = bus_dmamap_load_mbuf_segment(sc_if->msk_cdata.msk_rx_tag, 736 sc_if->msk_cdata.msk_rx_sparemap, 737 m, &seg, 1, &nseg, BUS_DMA_NOWAIT); 738 if (error) { 739 m_freem(m); 740 if (init) 741 if_printf(&sc_if->arpcom.ac_if, "can't load RX mbuf\n"); 742 return (error); 743 } 744 745 rxd = &sc_if->msk_cdata.msk_rxdesc[idx]; 746 if (rxd->rx_m != NULL) { 747 bus_dmamap_sync(sc_if->msk_cdata.msk_rx_tag, rxd->rx_dmamap, 748 BUS_DMASYNC_POSTREAD); 749 bus_dmamap_unload(sc_if->msk_cdata.msk_rx_tag, rxd->rx_dmamap); 750 } 751 752 map = rxd->rx_dmamap; 753 rxd->rx_dmamap = sc_if->msk_cdata.msk_rx_sparemap; 754 sc_if->msk_cdata.msk_rx_sparemap = map; 755 756 rxd->rx_m = m; 757 rx_le = rxd->rx_le; 758 rx_le->msk_addr = htole32(MSK_ADDR_LO(seg.ds_addr)); 759 rx_le->msk_control = htole32(seg.ds_len | OP_PACKET | HW_OWNER); 760 761 return (0); 762 } 763 764 #ifdef MSK_JUMBO 765 static int 766 msk_jumbo_newbuf(struct msk_if_softc *sc_if, int idx) 767 { 768 struct msk_rx_desc *rx_le; 769 struct msk_rxdesc *rxd; 770 struct mbuf *m; 771 bus_dma_segment_t segs[1]; 772 bus_dmamap_t map; 773 int nsegs; 774 void *buf; 775 776 MGETHDR(m, MB_DONTWAIT, MT_DATA); 777 if (m == NULL) 778 return (ENOBUFS); 779 buf = msk_jalloc(sc_if); 780 if (buf == NULL) { 781 m_freem(m); 782 return (ENOBUFS); 783 } 784 /* Attach the buffer to the mbuf. */ 785 MEXTADD(m, buf, MSK_JLEN, msk_jfree, sc_if, 0, EXT_NET_DRV); 786 if ((m->m_flags & M_EXT) == 0) { 787 m_freem(m); 788 return (ENOBUFS); 789 } 790 m->m_pkthdr.len = m->m_len = MSK_JLEN; 791 m_adj(m, ETHER_ALIGN); 792 793 if (bus_dmamap_load_mbuf_sg(sc_if->msk_cdata.msk_jumbo_rx_tag, 794 sc_if->msk_cdata.msk_jumbo_rx_sparemap, m, segs, &nsegs, 795 BUS_DMA_NOWAIT) != 0) { 796 m_freem(m); 797 return (ENOBUFS); 798 } 799 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 800 801 rxd = &sc_if->msk_cdata.msk_jumbo_rxdesc[idx]; 802 if (rxd->rx_m != NULL) { 803 bus_dmamap_sync(sc_if->msk_cdata.msk_jumbo_rx_tag, 804 rxd->rx_dmamap, BUS_DMASYNC_POSTREAD); 805 bus_dmamap_unload(sc_if->msk_cdata.msk_jumbo_rx_tag, 806 rxd->rx_dmamap); 807 } 808 map = rxd->rx_dmamap; 809 rxd->rx_dmamap = sc_if->msk_cdata.msk_jumbo_rx_sparemap; 810 sc_if->msk_cdata.msk_jumbo_rx_sparemap = map; 811 bus_dmamap_sync(sc_if->msk_cdata.msk_jumbo_rx_tag, rxd->rx_dmamap, 812 BUS_DMASYNC_PREREAD); 813 rxd->rx_m = m; 814 rx_le = rxd->rx_le; 815 rx_le->msk_addr = htole32(MSK_ADDR_LO(segs[0].ds_addr)); 816 rx_le->msk_control = 817 htole32(segs[0].ds_len | OP_PACKET | HW_OWNER); 818 819 return (0); 820 } 821 #endif 822 823 /* 824 * Set media options. 825 */ 826 static int 827 msk_mediachange(struct ifnet *ifp) 828 { 829 struct msk_if_softc *sc_if = ifp->if_softc; 830 struct mii_data *mii; 831 int error; 832 833 mii = device_get_softc(sc_if->msk_miibus); 834 error = mii_mediachg(mii); 835 836 return (error); 837 } 838 839 /* 840 * Report current media status. 841 */ 842 static void 843 msk_mediastatus(struct ifnet *ifp, struct ifmediareq *ifmr) 844 { 845 struct msk_if_softc *sc_if = ifp->if_softc; 846 struct mii_data *mii; 847 848 mii = device_get_softc(sc_if->msk_miibus); 849 mii_pollstat(mii); 850 851 ifmr->ifm_active = mii->mii_media_active; 852 ifmr->ifm_status = mii->mii_media_status; 853 } 854 855 static int 856 msk_ioctl(struct ifnet *ifp, u_long command, caddr_t data, struct ucred *cr) 857 { 858 struct msk_if_softc *sc_if; 859 struct ifreq *ifr; 860 struct mii_data *mii; 861 int error, mask; 862 863 sc_if = ifp->if_softc; 864 ifr = (struct ifreq *)data; 865 error = 0; 866 867 switch(command) { 868 case SIOCSIFMTU: 869 #ifdef MSK_JUMBO 870 if (ifr->ifr_mtu > MSK_JUMBO_MTU || ifr->ifr_mtu < ETHERMIN) { 871 error = EINVAL; 872 break; 873 } 874 if (sc_if->msk_softc->msk_hw_id == CHIP_ID_YUKON_FE && 875 ifr->ifr_mtu > MSK_MAX_FRAMELEN) { 876 error = EINVAL; 877 break; 878 } 879 ifp->if_mtu = ifr->ifr_mtu; 880 if ((ifp->if_flags & IFF_RUNNING) != 0) 881 msk_init(sc_if); 882 #else 883 error = EOPNOTSUPP; 884 #endif 885 break; 886 887 case SIOCSIFFLAGS: 888 if (ifp->if_flags & IFF_UP) { 889 if (ifp->if_flags & IFF_RUNNING) { 890 if (((ifp->if_flags ^ sc_if->msk_if_flags) 891 & (IFF_PROMISC | IFF_ALLMULTI)) != 0) 892 msk_rxfilter(sc_if); 893 } else { 894 if (sc_if->msk_detach == 0) 895 msk_init(sc_if); 896 } 897 } else { 898 if (ifp->if_flags & IFF_RUNNING) 899 msk_stop(sc_if); 900 } 901 sc_if->msk_if_flags = ifp->if_flags; 902 break; 903 904 case SIOCADDMULTI: 905 case SIOCDELMULTI: 906 if (ifp->if_flags & IFF_RUNNING) 907 msk_rxfilter(sc_if); 908 break; 909 910 case SIOCGIFMEDIA: 911 case SIOCSIFMEDIA: 912 mii = device_get_softc(sc_if->msk_miibus); 913 error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 914 break; 915 916 case SIOCSIFCAP: 917 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 918 if ((mask & IFCAP_TXCSUM) != 0) { 919 ifp->if_capenable ^= IFCAP_TXCSUM; 920 if ((IFCAP_TXCSUM & ifp->if_capenable) != 0 && 921 (IFCAP_TXCSUM & ifp->if_capabilities) != 0) 922 ifp->if_hwassist |= MSK_CSUM_FEATURES; 923 else 924 ifp->if_hwassist &= ~MSK_CSUM_FEATURES; 925 } 926 #ifdef notyet 927 if ((mask & IFCAP_VLAN_HWTAGGING) != 0) { 928 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 929 msk_setvlan(sc_if, ifp); 930 } 931 #endif 932 933 if (sc_if->msk_framesize > MSK_MAX_FRAMELEN && 934 sc_if->msk_softc->msk_hw_id == CHIP_ID_YUKON_EC_U) { 935 /* 936 * In Yukon EC Ultra, TSO & checksum offload is not 937 * supported for jumbo frame. 938 */ 939 ifp->if_hwassist &= ~MSK_CSUM_FEATURES; 940 ifp->if_capenable &= ~IFCAP_TXCSUM; 941 } 942 break; 943 944 default: 945 error = ether_ioctl(ifp, command, data); 946 break; 947 } 948 949 return (error); 950 } 951 952 static int 953 mskc_probe(device_t dev) 954 { 955 const struct msk_product *mp; 956 uint16_t vendor, devid; 957 958 vendor = pci_get_vendor(dev); 959 devid = pci_get_device(dev); 960 for (mp = msk_products; mp->msk_name != NULL; ++mp) { 961 if (vendor == mp->msk_vendorid && devid == mp->msk_deviceid) { 962 device_set_desc(dev, mp->msk_name); 963 return (0); 964 } 965 } 966 return (ENXIO); 967 } 968 969 static int 970 mskc_setup_rambuffer(struct msk_softc *sc) 971 { 972 int next; 973 int i; 974 975 /* Get adapter SRAM size. */ 976 sc->msk_ramsize = CSR_READ_1(sc, B2_E_0) * 4; 977 if (bootverbose) { 978 device_printf(sc->msk_dev, 979 "RAM buffer size : %dKB\n", sc->msk_ramsize); 980 } 981 if (sc->msk_ramsize == 0) 982 return (0); 983 sc->msk_pflags |= MSK_FLAG_RAMBUF; 984 985 /* 986 * Give receiver 2/3 of memory and round down to the multiple 987 * of 1024. Tx/Rx RAM buffer size of Yukon II shoud be multiple 988 * of 1024. 989 */ 990 sc->msk_rxqsize = rounddown((sc->msk_ramsize * 1024 * 2) / 3, 1024); 991 sc->msk_txqsize = (sc->msk_ramsize * 1024) - sc->msk_rxqsize; 992 for (i = 0, next = 0; i < sc->msk_num_port; i++) { 993 sc->msk_rxqstart[i] = next; 994 sc->msk_rxqend[i] = next + sc->msk_rxqsize - 1; 995 next = sc->msk_rxqend[i] + 1; 996 sc->msk_txqstart[i] = next; 997 sc->msk_txqend[i] = next + sc->msk_txqsize - 1; 998 next = sc->msk_txqend[i] + 1; 999 if (bootverbose) { 1000 device_printf(sc->msk_dev, 1001 "Port %d : Rx Queue %dKB(0x%08x:0x%08x)\n", i, 1002 sc->msk_rxqsize / 1024, sc->msk_rxqstart[i], 1003 sc->msk_rxqend[i]); 1004 device_printf(sc->msk_dev, 1005 "Port %d : Tx Queue %dKB(0x%08x:0x%08x)\n", i, 1006 sc->msk_txqsize / 1024, sc->msk_txqstart[i], 1007 sc->msk_txqend[i]); 1008 } 1009 } 1010 1011 return (0); 1012 } 1013 1014 static void 1015 mskc_phy_power(struct msk_softc *sc, int mode) 1016 { 1017 uint32_t our, val; 1018 int i; 1019 1020 switch (mode) { 1021 case MSK_PHY_POWERUP: 1022 /* Switch power to VCC (WA for VAUX problem). */ 1023 CSR_WRITE_1(sc, B0_POWER_CTRL, 1024 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_OFF | PC_VCC_ON); 1025 /* Disable Core Clock Division, set Clock Select to 0. */ 1026 CSR_WRITE_4(sc, B2_Y2_CLK_CTRL, Y2_CLK_DIV_DIS); 1027 1028 val = 0; 1029 if (sc->msk_hw_id == CHIP_ID_YUKON_XL && 1030 sc->msk_hw_rev > CHIP_REV_YU_XL_A1) { 1031 /* Enable bits are inverted. */ 1032 val = Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | 1033 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | 1034 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS; 1035 } 1036 /* 1037 * Enable PCI & Core Clock, enable clock gating for both Links. 1038 */ 1039 CSR_WRITE_1(sc, B2_Y2_CLK_GATE, val); 1040 1041 our = CSR_PCI_READ_4(sc, PCI_OUR_REG_1); 1042 our &= ~(PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD); 1043 if (sc->msk_hw_id == CHIP_ID_YUKON_XL) { 1044 if (sc->msk_hw_rev > CHIP_REV_YU_XL_A1) { 1045 /* Deassert Low Power for 1st PHY. */ 1046 our |= PCI_Y2_PHY1_COMA; 1047 if (sc->msk_num_port > 1) 1048 our |= PCI_Y2_PHY2_COMA; 1049 } 1050 } 1051 if (sc->msk_hw_id == CHIP_ID_YUKON_EC_U || 1052 sc->msk_hw_id == CHIP_ID_YUKON_EX || 1053 sc->msk_hw_id >= CHIP_ID_YUKON_FE_P) { 1054 val = CSR_PCI_READ_4(sc, PCI_OUR_REG_4); 1055 val &= (PCI_FORCE_ASPM_REQUEST | 1056 PCI_ASPM_GPHY_LINK_DOWN | PCI_ASPM_INT_FIFO_EMPTY | 1057 PCI_ASPM_CLKRUN_REQUEST); 1058 /* Set all bits to 0 except bits 15..12. */ 1059 CSR_PCI_WRITE_4(sc, PCI_OUR_REG_4, val); 1060 val = CSR_PCI_READ_4(sc, PCI_OUR_REG_5); 1061 val &= PCI_CTL_TIM_VMAIN_AV_MSK; 1062 CSR_PCI_WRITE_4(sc, PCI_OUR_REG_5, val); 1063 CSR_PCI_WRITE_4(sc, PCI_CFG_REG_1, 0); 1064 CSR_WRITE_2(sc, B0_CTST, Y2_HW_WOL_ON); 1065 /* 1066 * Disable status race, workaround for 1067 * Yukon EC Ultra & Yukon EX. 1068 */ 1069 val = CSR_READ_4(sc, B2_GP_IO); 1070 val |= GLB_GPIO_STAT_RACE_DIS; 1071 CSR_WRITE_4(sc, B2_GP_IO, val); 1072 CSR_READ_4(sc, B2_GP_IO); 1073 } 1074 /* Release PHY from PowerDown/COMA mode. */ 1075 CSR_PCI_WRITE_4(sc, PCI_OUR_REG_1, our); 1076 1077 for (i = 0; i < sc->msk_num_port; i++) { 1078 CSR_WRITE_2(sc, MR_ADDR(i, GMAC_LINK_CTRL), 1079 GMLC_RST_SET); 1080 CSR_WRITE_2(sc, MR_ADDR(i, GMAC_LINK_CTRL), 1081 GMLC_RST_CLR); 1082 } 1083 break; 1084 case MSK_PHY_POWERDOWN: 1085 val = CSR_PCI_READ_4(sc, PCI_OUR_REG_1); 1086 val |= PCI_Y2_PHY1_POWD | PCI_Y2_PHY2_POWD; 1087 if (sc->msk_hw_id == CHIP_ID_YUKON_XL && 1088 sc->msk_hw_rev > CHIP_REV_YU_XL_A1) { 1089 val &= ~PCI_Y2_PHY1_COMA; 1090 if (sc->msk_num_port > 1) 1091 val &= ~PCI_Y2_PHY2_COMA; 1092 } 1093 CSR_PCI_WRITE_4(sc, PCI_OUR_REG_1, val); 1094 1095 val = Y2_PCI_CLK_LNK1_DIS | Y2_COR_CLK_LNK1_DIS | 1096 Y2_CLK_GAT_LNK1_DIS | Y2_PCI_CLK_LNK2_DIS | 1097 Y2_COR_CLK_LNK2_DIS | Y2_CLK_GAT_LNK2_DIS; 1098 if (sc->msk_hw_id == CHIP_ID_YUKON_XL && 1099 sc->msk_hw_rev > CHIP_REV_YU_XL_A1) { 1100 /* Enable bits are inverted. */ 1101 val = 0; 1102 } 1103 /* 1104 * Disable PCI & Core Clock, disable clock gating for 1105 * both Links. 1106 */ 1107 CSR_WRITE_1(sc, B2_Y2_CLK_GATE, val); 1108 CSR_WRITE_1(sc, B0_POWER_CTRL, 1109 PC_VAUX_ENA | PC_VCC_ENA | PC_VAUX_ON | PC_VCC_OFF); 1110 break; 1111 default: 1112 break; 1113 } 1114 } 1115 1116 static void 1117 mskc_reset(struct msk_softc *sc) 1118 { 1119 bus_addr_t addr; 1120 uint16_t status; 1121 uint32_t val; 1122 int i; 1123 1124 /* Disable ASF. */ 1125 if (sc->msk_hw_id >= CHIP_ID_YUKON_XL && 1126 sc->msk_hw_id <= CHIP_ID_YUKON_SUPR) { 1127 if (sc->msk_hw_id == CHIP_ID_YUKON_EX || 1128 sc->msk_hw_id == CHIP_ID_YUKON_SUPR) { 1129 CSR_WRITE_4(sc, B28_Y2_CPU_WDOG, 0); 1130 status = CSR_READ_2(sc, B28_Y2_ASF_HCU_CCSR); 1131 /* Clear AHB bridge & microcontroller reset. */ 1132 status &= ~(Y2_ASF_HCU_CCSR_AHB_RST | 1133 Y2_ASF_HCU_CCSR_CPU_RST_MODE); 1134 /* Clear ASF microcontroller state. */ 1135 status &= ~Y2_ASF_HCU_CCSR_UC_STATE_MSK; 1136 status &= ~Y2_ASF_HCU_CCSR_CPU_CLK_DIVIDE_MSK; 1137 CSR_WRITE_2(sc, B28_Y2_ASF_HCU_CCSR, status); 1138 CSR_WRITE_4(sc, B28_Y2_CPU_WDOG, 0); 1139 } else { 1140 CSR_WRITE_1(sc, B28_Y2_ASF_STAT_CMD, Y2_ASF_RESET); 1141 } 1142 CSR_WRITE_2(sc, B0_CTST, Y2_ASF_DISABLE); 1143 /* 1144 * Since we disabled ASF, S/W reset is required for 1145 * Power Management. 1146 */ 1147 CSR_WRITE_2(sc, B0_CTST, CS_RST_SET); 1148 CSR_WRITE_2(sc, B0_CTST, CS_RST_CLR); 1149 } 1150 1151 /* Clear all error bits in the PCI status register. */ 1152 status = pci_read_config(sc->msk_dev, PCIR_STATUS, 2); 1153 CSR_WRITE_1(sc, B2_TST_CTRL1, TST_CFG_WRITE_ON); 1154 1155 pci_write_config(sc->msk_dev, PCIR_STATUS, status | 1156 PCIM_STATUS_PERR | PCIM_STATUS_SERR | PCIM_STATUS_RMABORT | 1157 PCIM_STATUS_RTABORT | PCIM_STATUS_PERRREPORT, 2); 1158 CSR_WRITE_2(sc, B0_CTST, CS_MRST_CLR); 1159 1160 switch (sc->msk_bustype) { 1161 case MSK_PEX_BUS: 1162 /* Clear all PEX errors. */ 1163 CSR_PCI_WRITE_4(sc, PEX_UNC_ERR_STAT, 0xffffffff); 1164 val = CSR_PCI_READ_4(sc, PEX_UNC_ERR_STAT); 1165 if ((val & PEX_RX_OV) != 0) { 1166 sc->msk_intrmask &= ~Y2_IS_HW_ERR; 1167 sc->msk_intrhwemask &= ~Y2_IS_PCI_EXP; 1168 } 1169 break; 1170 case MSK_PCI_BUS: 1171 case MSK_PCIX_BUS: 1172 /* Set Cache Line Size to 2(8bytes) if configured to 0. */ 1173 val = pci_read_config(sc->msk_dev, PCIR_CACHELNSZ, 1); 1174 if (val == 0) 1175 pci_write_config(sc->msk_dev, PCIR_CACHELNSZ, 2, 1); 1176 if (sc->msk_bustype == MSK_PCIX_BUS) { 1177 /* Set Cache Line Size opt. */ 1178 val = CSR_PCI_READ_4(sc, PCI_OUR_REG_1); 1179 val |= PCI_CLS_OPT; 1180 CSR_PCI_WRITE_4(sc, PCI_OUR_REG_1, val); 1181 } 1182 break; 1183 } 1184 /* Set PHY power state. */ 1185 mskc_phy_power(sc, MSK_PHY_POWERUP); 1186 1187 /* Reset GPHY/GMAC Control */ 1188 for (i = 0; i < sc->msk_num_port; i++) { 1189 /* GPHY Control reset. */ 1190 CSR_WRITE_1(sc, MR_ADDR(i, GPHY_CTRL), GPC_RST_SET); 1191 CSR_WRITE_1(sc, MR_ADDR(i, GPHY_CTRL), GPC_RST_CLR); 1192 /* GMAC Control reset. */ 1193 CSR_WRITE_4(sc, MR_ADDR(i, GMAC_CTRL), GMC_RST_SET); 1194 CSR_WRITE_4(sc, MR_ADDR(i, GMAC_CTRL), GMC_RST_CLR); 1195 CSR_WRITE_4(sc, MR_ADDR(i, GMAC_CTRL), GMC_F_LOOPB_OFF); 1196 if (sc->msk_hw_id == CHIP_ID_YUKON_EX || 1197 sc->msk_hw_id == CHIP_ID_YUKON_SUPR) { 1198 CSR_WRITE_4(sc, MR_ADDR(i, GMAC_CTRL), 1199 GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON | 1200 GMC_BYP_RETR_ON); 1201 } 1202 } 1203 1204 if (sc->msk_hw_id == CHIP_ID_YUKON_SUPR && 1205 sc->msk_hw_rev > CHIP_REV_YU_SU_B0) 1206 CSR_PCI_WRITE_4(sc, PCI_OUR_REG_3, PCI_CLK_MACSEC_DIS); 1207 if (sc->msk_hw_id == CHIP_ID_YUKON_OPT && sc->msk_hw_rev == 0) { 1208 /* Disable PCIe PHY powerdown(reg 0x80, bit7). */ 1209 CSR_WRITE_4(sc, Y2_PEX_PHY_DATA, (0x0080 << 16) | 0x0080); 1210 } 1211 CSR_WRITE_1(sc, B2_TST_CTRL1, TST_CFG_WRITE_OFF); 1212 1213 /* LED On. */ 1214 CSR_WRITE_2(sc, B0_CTST, Y2_LED_STAT_ON); 1215 1216 /* Clear TWSI IRQ. */ 1217 CSR_WRITE_4(sc, B2_I2C_IRQ, I2C_CLR_IRQ); 1218 1219 /* Turn off hardware timer. */ 1220 CSR_WRITE_1(sc, B2_TI_CTRL, TIM_STOP); 1221 CSR_WRITE_1(sc, B2_TI_CTRL, TIM_CLR_IRQ); 1222 1223 /* Turn off descriptor polling. */ 1224 CSR_WRITE_1(sc, B28_DPT_CTRL, DPT_STOP); 1225 1226 /* Turn off time stamps. */ 1227 CSR_WRITE_1(sc, GMAC_TI_ST_CTRL, GMT_ST_STOP); 1228 CSR_WRITE_1(sc, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); 1229 1230 if (sc->msk_hw_id == CHIP_ID_YUKON_XL || 1231 sc->msk_hw_id == CHIP_ID_YUKON_EC || 1232 sc->msk_hw_id == CHIP_ID_YUKON_FE) { 1233 /* Configure timeout values. */ 1234 for (i = 0; i < sc->msk_num_port; i++) { 1235 CSR_WRITE_2(sc, SELECT_RAM_BUFFER(i, B3_RI_CTRL), 1236 RI_RST_SET); 1237 CSR_WRITE_2(sc, SELECT_RAM_BUFFER(i, B3_RI_CTRL), 1238 RI_RST_CLR); 1239 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_WTO_R1), 1240 MSK_RI_TO_53); 1241 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_WTO_XA1), 1242 MSK_RI_TO_53); 1243 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_WTO_XS1), 1244 MSK_RI_TO_53); 1245 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_RTO_R1), 1246 MSK_RI_TO_53); 1247 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_RTO_XA1), 1248 MSK_RI_TO_53); 1249 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_RTO_XS1), 1250 MSK_RI_TO_53); 1251 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_WTO_R2), 1252 MSK_RI_TO_53); 1253 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_WTO_XA2), 1254 MSK_RI_TO_53); 1255 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_WTO_XS2), 1256 MSK_RI_TO_53); 1257 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_RTO_R2), 1258 MSK_RI_TO_53); 1259 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_RTO_XA2), 1260 MSK_RI_TO_53); 1261 CSR_WRITE_1(sc, SELECT_RAM_BUFFER(i, B3_RI_RTO_XS2), 1262 MSK_RI_TO_53); 1263 } 1264 } 1265 1266 /* Disable all interrupts. */ 1267 CSR_WRITE_4(sc, B0_HWE_IMSK, 0); 1268 CSR_READ_4(sc, B0_HWE_IMSK); 1269 CSR_WRITE_4(sc, B0_IMSK, 0); 1270 CSR_READ_4(sc, B0_IMSK); 1271 1272 /* 1273 * On dual port PCI-X card, there is an problem where status 1274 * can be received out of order due to split transactions. 1275 */ 1276 if (sc->msk_pcixcap != 0 && sc->msk_num_port > 1) { 1277 uint16_t pcix_cmd; 1278 1279 pcix_cmd = pci_read_config(sc->msk_dev, 1280 sc->msk_pcixcap + PCIXR_COMMAND, 2); 1281 /* Clear Max Outstanding Split Transactions. */ 1282 pcix_cmd &= ~PCIXM_COMMAND_MAX_SPLITS; 1283 CSR_WRITE_1(sc, B2_TST_CTRL1, TST_CFG_WRITE_ON); 1284 pci_write_config(sc->msk_dev, 1285 sc->msk_pcixcap + PCIXR_COMMAND, pcix_cmd, 2); 1286 CSR_WRITE_1(sc, B2_TST_CTRL1, TST_CFG_WRITE_OFF); 1287 } 1288 if (sc->msk_pciecap != 0) { 1289 /* Change Max. Read Request Size to 2048 bytes. */ 1290 if (pcie_get_max_readrq(sc->msk_dev) == 1291 PCIEM_DEVCTL_MAX_READRQ_512) { 1292 pcie_set_max_readrq(sc->msk_dev, 1293 PCIEM_DEVCTL_MAX_READRQ_2048); 1294 } 1295 } 1296 1297 /* Clear status list. */ 1298 bzero(sc->msk_stat_ring, 1299 sizeof(struct msk_stat_desc) * MSK_STAT_RING_CNT); 1300 sc->msk_stat_cons = 0; 1301 CSR_WRITE_4(sc, STAT_CTRL, SC_STAT_RST_SET); 1302 CSR_WRITE_4(sc, STAT_CTRL, SC_STAT_RST_CLR); 1303 /* Set the status list base address. */ 1304 addr = sc->msk_stat_ring_paddr; 1305 CSR_WRITE_4(sc, STAT_LIST_ADDR_LO, MSK_ADDR_LO(addr)); 1306 CSR_WRITE_4(sc, STAT_LIST_ADDR_HI, MSK_ADDR_HI(addr)); 1307 /* Set the status list last index. */ 1308 CSR_WRITE_2(sc, STAT_LAST_IDX, MSK_STAT_RING_CNT - 1); 1309 if (sc->msk_hw_id == CHIP_ID_YUKON_EC && 1310 sc->msk_hw_rev == CHIP_REV_YU_EC_A1) { 1311 /* WA for dev. #4.3 */ 1312 CSR_WRITE_2(sc, STAT_TX_IDX_TH, ST_TXTH_IDX_MASK); 1313 /* WA for dev. #4.18 */ 1314 CSR_WRITE_1(sc, STAT_FIFO_WM, 0x21); 1315 CSR_WRITE_1(sc, STAT_FIFO_ISR_WM, 0x07); 1316 } else { 1317 CSR_WRITE_2(sc, STAT_TX_IDX_TH, 0x0a); 1318 CSR_WRITE_1(sc, STAT_FIFO_WM, 0x10); 1319 if (sc->msk_hw_id == CHIP_ID_YUKON_XL && 1320 sc->msk_hw_rev == CHIP_REV_YU_XL_A0) 1321 CSR_WRITE_1(sc, STAT_FIFO_ISR_WM, 0x04); 1322 else 1323 CSR_WRITE_1(sc, STAT_FIFO_ISR_WM, 0x10); 1324 CSR_WRITE_4(sc, STAT_ISR_TIMER_INI, 0x0190); 1325 } 1326 /* 1327 * Use default value for STAT_ISR_TIMER_INI, STAT_LEV_TIMER_INI. 1328 */ 1329 CSR_WRITE_4(sc, STAT_TX_TIMER_INI, MSK_USECS(sc, 1000)); 1330 1331 /* Enable status unit. */ 1332 CSR_WRITE_4(sc, STAT_CTRL, SC_STAT_OP_ON); 1333 1334 CSR_WRITE_1(sc, STAT_TX_TIMER_CTRL, TIM_START); 1335 CSR_WRITE_1(sc, STAT_LEV_TIMER_CTRL, TIM_START); 1336 CSR_WRITE_1(sc, STAT_ISR_TIMER_CTRL, TIM_START); 1337 } 1338 1339 static int 1340 msk_probe(device_t dev) 1341 { 1342 struct msk_softc *sc = device_get_softc(device_get_parent(dev)); 1343 char desc[100]; 1344 1345 /* 1346 * Not much to do here. We always know there will be 1347 * at least one GMAC present, and if there are two, 1348 * mskc_attach() will create a second device instance 1349 * for us. 1350 */ 1351 ksnprintf(desc, sizeof(desc), 1352 "Marvell Technology Group Ltd. %s Id 0x%02x Rev 0x%02x", 1353 model_name[sc->msk_hw_id - CHIP_ID_YUKON_XL], sc->msk_hw_id, 1354 sc->msk_hw_rev); 1355 device_set_desc_copy(dev, desc); 1356 1357 return (0); 1358 } 1359 1360 static int 1361 msk_attach(device_t dev) 1362 { 1363 struct msk_softc *sc = device_get_softc(device_get_parent(dev)); 1364 struct msk_if_softc *sc_if = device_get_softc(dev); 1365 struct ifnet *ifp = &sc_if->arpcom.ac_if; 1366 int i, port, error; 1367 uint8_t eaddr[ETHER_ADDR_LEN]; 1368 1369 port = *(int *)device_get_ivars(dev); 1370 KKASSERT(port == MSK_PORT_A || port == MSK_PORT_B); 1371 1372 kfree(device_get_ivars(dev), M_DEVBUF); 1373 device_set_ivars(dev, NULL); 1374 1375 callout_init(&sc_if->msk_tick_ch); 1376 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 1377 1378 sc_if->msk_if_dev = dev; 1379 sc_if->msk_port = port; 1380 sc_if->msk_softc = sc; 1381 sc_if->msk_ifp = ifp; 1382 sc_if->msk_flags = sc->msk_pflags; 1383 sc->msk_if[port] = sc_if; 1384 1385 /* Setup Tx/Rx queue register offsets. */ 1386 if (port == MSK_PORT_A) { 1387 sc_if->msk_txq = Q_XA1; 1388 sc_if->msk_txsq = Q_XS1; 1389 sc_if->msk_rxq = Q_R1; 1390 } else { 1391 sc_if->msk_txq = Q_XA2; 1392 sc_if->msk_txsq = Q_XS2; 1393 sc_if->msk_rxq = Q_R2; 1394 } 1395 1396 error = msk_txrx_dma_alloc(sc_if); 1397 if (error) 1398 goto fail; 1399 1400 ifp->if_softc = sc_if; 1401 ifp->if_mtu = ETHERMTU; 1402 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1403 ifp->if_init = msk_init; 1404 ifp->if_ioctl = msk_ioctl; 1405 ifp->if_start = msk_start; 1406 ifp->if_watchdog = msk_watchdog; 1407 ifq_set_maxlen(&ifp->if_snd, MSK_TX_RING_CNT - 1); 1408 ifq_set_ready(&ifp->if_snd); 1409 1410 #ifdef notyet 1411 /* 1412 * IFCAP_RXCSUM capability is intentionally disabled as the hardware 1413 * has serious bug in Rx checksum offload for all Yukon II family 1414 * hardware. It seems there is a workaround to make it work somtimes. 1415 * However, the workaround also have to check OP code sequences to 1416 * verify whether the OP code is correct. Sometimes it should compute 1417 * IP/TCP/UDP checksum in driver in order to verify correctness of 1418 * checksum computed by hardware. If you have to compute checksum 1419 * with software to verify the hardware's checksum why have hardware 1420 * compute the checksum? I think there is no reason to spend time to 1421 * make Rx checksum offload work on Yukon II hardware. 1422 */ 1423 ifp->if_capabilities = IFCAP_TXCSUM | IFCAP_VLAN_MTU | 1424 IFCAP_VLAN_HWTAGGING | IFCAP_VLAN_HWCSUM; 1425 ifp->if_hwassist = MSK_CSUM_FEATURES; 1426 ifp->if_capenable = ifp->if_capabilities; 1427 #endif 1428 1429 /* 1430 * Get station address for this interface. Note that 1431 * dual port cards actually come with three station 1432 * addresses: one for each port, plus an extra. The 1433 * extra one is used by the SysKonnect driver software 1434 * as a 'virtual' station address for when both ports 1435 * are operating in failover mode. Currently we don't 1436 * use this extra address. 1437 */ 1438 for (i = 0; i < ETHER_ADDR_LEN; i++) 1439 eaddr[i] = CSR_READ_1(sc, B2_MAC_1 + (port * 8) + i); 1440 1441 sc_if->msk_framesize = ifp->if_mtu + ETHER_HDR_LEN + EVL_ENCAPLEN; 1442 1443 /* 1444 * Do miibus setup. 1445 */ 1446 error = mii_phy_probe(dev, &sc_if->msk_miibus, 1447 msk_mediachange, msk_mediastatus); 1448 if (error) { 1449 device_printf(sc_if->msk_if_dev, "no PHY found!\n"); 1450 goto fail; 1451 } 1452 1453 /* 1454 * Call MI attach routine. Can't hold locks when calling into ether_*. 1455 */ 1456 ether_ifattach(ifp, eaddr, &sc->msk_serializer); 1457 #if 0 1458 /* 1459 * Tell the upper layer(s) we support long frames. 1460 * Must appear after the call to ether_ifattach() because 1461 * ether_ifattach() sets ifi_hdrlen to the default value. 1462 */ 1463 ifp->if_data.ifi_hdrlen = sizeof(struct ether_vlan_header); 1464 #endif 1465 1466 return 0; 1467 fail: 1468 msk_detach(dev); 1469 sc->msk_if[port] = NULL; 1470 return (error); 1471 } 1472 1473 /* 1474 * Attach the interface. Allocate softc structures, do ifmedia 1475 * setup and ethernet/BPF attach. 1476 */ 1477 static int 1478 mskc_attach(device_t dev) 1479 { 1480 struct msk_softc *sc; 1481 int error, *port, cpuid; 1482 u_int irq_flags; 1483 1484 sc = device_get_softc(dev); 1485 sc->msk_dev = dev; 1486 lwkt_serialize_init(&sc->msk_serializer); 1487 1488 /* 1489 * Initailize sysctl variables 1490 */ 1491 sc->msk_process_limit = mskc_process_limit; 1492 sc->msk_intr_rate = mskc_intr_rate; 1493 1494 #ifndef BURN_BRIDGES 1495 /* 1496 * Handle power management nonsense. 1497 */ 1498 if (pci_get_powerstate(dev) != PCI_POWERSTATE_D0) { 1499 uint32_t irq, bar0, bar1; 1500 1501 /* Save important PCI config data. */ 1502 bar0 = pci_read_config(dev, PCIR_BAR(0), 4); 1503 bar1 = pci_read_config(dev, PCIR_BAR(1), 4); 1504 irq = pci_read_config(dev, PCIR_INTLINE, 4); 1505 1506 /* Reset the power state. */ 1507 device_printf(dev, "chip is in D%d power mode " 1508 "-- setting to D0\n", pci_get_powerstate(dev)); 1509 1510 pci_set_powerstate(dev, PCI_POWERSTATE_D0); 1511 1512 /* Restore PCI config data. */ 1513 pci_write_config(dev, PCIR_BAR(0), bar0, 4); 1514 pci_write_config(dev, PCIR_BAR(1), bar1, 4); 1515 pci_write_config(dev, PCIR_INTLINE, irq, 4); 1516 } 1517 #endif /* BURN_BRIDGES */ 1518 1519 /* 1520 * Map control/status registers. 1521 */ 1522 pci_enable_busmaster(dev); 1523 1524 /* 1525 * Allocate I/O resource 1526 */ 1527 #ifdef MSK_USEIOSPACE 1528 sc->msk_res_type = SYS_RES_IOPORT; 1529 sc->msk_res_rid = PCIR_BAR(1); 1530 #else 1531 sc->msk_res_type = SYS_RES_MEMORY; 1532 sc->msk_res_rid = PCIR_BAR(0); 1533 #endif 1534 sc->msk_res = bus_alloc_resource_any(dev, sc->msk_res_type, 1535 &sc->msk_res_rid, RF_ACTIVE); 1536 if (sc->msk_res == NULL) { 1537 if (sc->msk_res_type == SYS_RES_MEMORY) { 1538 sc->msk_res_type = SYS_RES_IOPORT; 1539 sc->msk_res_rid = PCIR_BAR(1); 1540 } else { 1541 sc->msk_res_type = SYS_RES_MEMORY; 1542 sc->msk_res_rid = PCIR_BAR(0); 1543 } 1544 sc->msk_res = bus_alloc_resource_any(dev, sc->msk_res_type, 1545 &sc->msk_res_rid, 1546 RF_ACTIVE); 1547 if (sc->msk_res == NULL) { 1548 device_printf(dev, "couldn't allocate %s resources\n", 1549 sc->msk_res_type == SYS_RES_MEMORY ? "memory" : "I/O"); 1550 return (ENXIO); 1551 } 1552 } 1553 sc->msk_res_bt = rman_get_bustag(sc->msk_res); 1554 sc->msk_res_bh = rman_get_bushandle(sc->msk_res); 1555 1556 /* 1557 * Allocate IRQ 1558 */ 1559 sc->msk_irq_type = pci_alloc_1intr(dev, mskc_msi_enable, 1560 &sc->msk_irq_rid, &irq_flags); 1561 1562 sc->msk_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &sc->msk_irq_rid, 1563 irq_flags); 1564 if (sc->msk_irq == NULL) { 1565 device_printf(dev, "couldn't allocate IRQ resources\n"); 1566 error = ENXIO; 1567 goto fail; 1568 } 1569 1570 /* Enable all clocks before accessing any registers. */ 1571 CSR_PCI_WRITE_4(sc, PCI_OUR_REG_3, 0); 1572 1573 CSR_WRITE_2(sc, B0_CTST, CS_RST_CLR); 1574 sc->msk_hw_id = CSR_READ_1(sc, B2_CHIP_ID); 1575 sc->msk_hw_rev = (CSR_READ_1(sc, B2_MAC_CFG) >> 4) & 0x0f; 1576 /* Bail out if chip is not recognized. */ 1577 if (sc->msk_hw_id < CHIP_ID_YUKON_XL || 1578 sc->msk_hw_id > CHIP_ID_YUKON_OPT || 1579 sc->msk_hw_id == CHIP_ID_YUKON_UNKNOWN) { 1580 device_printf(dev, "unknown device: id=0x%02x, rev=0x%02x\n", 1581 sc->msk_hw_id, sc->msk_hw_rev); 1582 error = ENXIO; 1583 goto fail; 1584 } 1585 1586 /* 1587 * Create sysctl tree 1588 */ 1589 sysctl_ctx_init(&sc->msk_sysctl_ctx); 1590 sc->msk_sysctl_tree = SYSCTL_ADD_NODE(&sc->msk_sysctl_ctx, 1591 SYSCTL_STATIC_CHILDREN(_hw), 1592 OID_AUTO, 1593 device_get_nameunit(dev), 1594 CTLFLAG_RD, 0, ""); 1595 if (sc->msk_sysctl_tree == NULL) { 1596 device_printf(dev, "can't add sysctl node\n"); 1597 error = ENXIO; 1598 goto fail; 1599 } 1600 1601 SYSCTL_ADD_PROC(&sc->msk_sysctl_ctx, 1602 SYSCTL_CHILDREN(sc->msk_sysctl_tree), 1603 OID_AUTO, "process_limit", CTLTYPE_INT | CTLFLAG_RW, 1604 &sc->msk_process_limit, 0, mskc_sysctl_proc_limit, 1605 "I", "max number of Rx events to process"); 1606 SYSCTL_ADD_PROC(&sc->msk_sysctl_ctx, 1607 SYSCTL_CHILDREN(sc->msk_sysctl_tree), 1608 OID_AUTO, "intr_rate", CTLTYPE_INT | CTLFLAG_RW, 1609 sc, 0, mskc_sysctl_intr_rate, 1610 "I", "max number of interrupt per second"); 1611 SYSCTL_ADD_INT(&sc->msk_sysctl_ctx, 1612 SYSCTL_CHILDREN(sc->msk_sysctl_tree), OID_AUTO, 1613 "defrag_avoided", CTLFLAG_RW, &sc->msk_defrag_avoided, 1614 0, "# of avoided m_defrag on TX path"); 1615 SYSCTL_ADD_INT(&sc->msk_sysctl_ctx, 1616 SYSCTL_CHILDREN(sc->msk_sysctl_tree), OID_AUTO, 1617 "leading_copied", CTLFLAG_RW, &sc->msk_leading_copied, 1618 0, "# of leading copies on TX path"); 1619 SYSCTL_ADD_INT(&sc->msk_sysctl_ctx, 1620 SYSCTL_CHILDREN(sc->msk_sysctl_tree), OID_AUTO, 1621 "trailing_copied", CTLFLAG_RW, &sc->msk_trailing_copied, 1622 0, "# of trailing copies on TX path"); 1623 1624 sc->msk_pmd = CSR_READ_1(sc, B2_PMD_TYP); 1625 if (sc->msk_pmd == 'L' || sc->msk_pmd == 'S') 1626 sc->msk_coppertype = 0; 1627 else 1628 sc->msk_coppertype = 1; 1629 /* Check number of MACs. */ 1630 sc->msk_num_port = 1; 1631 if ((CSR_READ_1(sc, B2_Y2_HW_RES) & CFG_DUAL_MAC_MSK) == 1632 CFG_DUAL_MAC_MSK) { 1633 if (!(CSR_READ_1(sc, B2_Y2_CLK_GATE) & Y2_STATUS_LNK2_INAC)) 1634 sc->msk_num_port++; 1635 } 1636 1637 /* Check bus type. */ 1638 if (pci_is_pcie(sc->msk_dev) == 0) { 1639 sc->msk_bustype = MSK_PEX_BUS; 1640 sc->msk_pciecap = pci_get_pciecap_ptr(sc->msk_dev); 1641 } else if (pci_is_pcix(sc->msk_dev) == 0) { 1642 sc->msk_bustype = MSK_PCIX_BUS; 1643 sc->msk_pcixcap = pci_get_pcixcap_ptr(sc->msk_dev); 1644 } else { 1645 sc->msk_bustype = MSK_PCI_BUS; 1646 } 1647 1648 switch (sc->msk_hw_id) { 1649 case CHIP_ID_YUKON_EC: 1650 case CHIP_ID_YUKON_EC_U: 1651 sc->msk_clock = 125; /* 125 Mhz */ 1652 break; 1653 case CHIP_ID_YUKON_EX: 1654 sc->msk_clock = 125; /* 125 Mhz */ 1655 break; 1656 case CHIP_ID_YUKON_FE: 1657 sc->msk_clock = 100; /* 100 Mhz */ 1658 sc->msk_pflags |= MSK_FLAG_FASTETHER; 1659 break; 1660 case CHIP_ID_YUKON_FE_P: 1661 sc->msk_clock = 50; /* 50 Mhz */ 1662 /* DESCV2 */ 1663 sc->msk_pflags |= MSK_FLAG_FASTETHER; 1664 if (sc->msk_hw_rev == CHIP_REV_YU_FE_P_A0) { 1665 /* 1666 * XXX 1667 * FE+ A0 has status LE writeback bug so msk(4) 1668 * does not rely on status word of received frame 1669 * in msk_rxeof() which in turn disables all 1670 * hardware assistance bits reported by the status 1671 * word as well as validity of the recevied frame. 1672 * Just pass received frames to upper stack with 1673 * minimal test and let upper stack handle them. 1674 */ 1675 sc->msk_pflags |= MSK_FLAG_NORXCHK; 1676 } 1677 break; 1678 case CHIP_ID_YUKON_XL: 1679 sc->msk_clock = 156; /* 156 Mhz */ 1680 break; 1681 case CHIP_ID_YUKON_SUPR: 1682 sc->msk_clock = 125; /* 125 MHz */ 1683 break; 1684 case CHIP_ID_YUKON_UL_2: 1685 sc->msk_clock = 125; /* 125 Mhz */ 1686 break; 1687 case CHIP_ID_YUKON_OPT: 1688 sc->msk_clock = 125; /* 125 MHz */ 1689 break; 1690 default: 1691 sc->msk_clock = 156; /* 156 Mhz */ 1692 break; 1693 } 1694 1695 error = mskc_status_dma_alloc(sc); 1696 if (error) 1697 goto fail; 1698 1699 /* Set base interrupt mask. */ 1700 sc->msk_intrmask = Y2_IS_HW_ERR | Y2_IS_STAT_BMU; 1701 sc->msk_intrhwemask = Y2_IS_TIST_OV | Y2_IS_MST_ERR | 1702 Y2_IS_IRQ_STAT | Y2_IS_PCI_EXP | Y2_IS_PCI_NEXP; 1703 1704 /* Reset the adapter. */ 1705 mskc_reset(sc); 1706 1707 error = mskc_setup_rambuffer(sc); 1708 if (error) 1709 goto fail; 1710 1711 sc->msk_devs[MSK_PORT_A] = device_add_child(dev, "msk", -1); 1712 if (sc->msk_devs[MSK_PORT_A] == NULL) { 1713 device_printf(dev, "failed to add child for PORT_A\n"); 1714 error = ENXIO; 1715 goto fail; 1716 } 1717 port = kmalloc(sizeof(*port), M_DEVBUF, M_WAITOK); 1718 *port = MSK_PORT_A; 1719 device_set_ivars(sc->msk_devs[MSK_PORT_A], port); 1720 1721 if (sc->msk_num_port > 1) { 1722 sc->msk_devs[MSK_PORT_B] = device_add_child(dev, "msk", -1); 1723 if (sc->msk_devs[MSK_PORT_B] == NULL) { 1724 device_printf(dev, "failed to add child for PORT_B\n"); 1725 error = ENXIO; 1726 goto fail; 1727 } 1728 port = kmalloc(sizeof(*port), M_DEVBUF, M_WAITOK); 1729 *port = MSK_PORT_B; 1730 device_set_ivars(sc->msk_devs[MSK_PORT_B], port); 1731 } 1732 1733 bus_generic_attach(dev); 1734 1735 cpuid = rman_get_cpuid(sc->msk_irq); 1736 if (sc->msk_if[0] != NULL) 1737 ifq_set_cpuid(&sc->msk_if[0]->msk_ifp->if_snd, cpuid); 1738 if (sc->msk_if[1] != NULL) 1739 ifq_set_cpuid(&sc->msk_if[1]->msk_ifp->if_snd, cpuid); 1740 1741 error = bus_setup_intr(dev, sc->msk_irq, INTR_MPSAFE, 1742 mskc_intr, sc, &sc->msk_intrhand, 1743 &sc->msk_serializer); 1744 if (error) { 1745 device_printf(dev, "couldn't set up interrupt handler\n"); 1746 goto fail; 1747 } 1748 return 0; 1749 fail: 1750 mskc_detach(dev); 1751 return (error); 1752 } 1753 1754 /* 1755 * Shutdown hardware and free up resources. This can be called any 1756 * time after the mutex has been initialized. It is called in both 1757 * the error case in attach and the normal detach case so it needs 1758 * to be careful about only freeing resources that have actually been 1759 * allocated. 1760 */ 1761 static int 1762 msk_detach(device_t dev) 1763 { 1764 struct msk_if_softc *sc_if = device_get_softc(dev); 1765 1766 if (device_is_attached(dev)) { 1767 struct msk_softc *sc = sc_if->msk_softc; 1768 struct ifnet *ifp = &sc_if->arpcom.ac_if; 1769 1770 lwkt_serialize_enter(ifp->if_serializer); 1771 1772 if (sc->msk_intrhand != NULL) { 1773 if (sc->msk_if[MSK_PORT_A] != NULL) 1774 msk_stop(sc->msk_if[MSK_PORT_A]); 1775 if (sc->msk_if[MSK_PORT_B] != NULL) 1776 msk_stop(sc->msk_if[MSK_PORT_B]); 1777 1778 bus_teardown_intr(sc->msk_dev, sc->msk_irq, 1779 sc->msk_intrhand); 1780 sc->msk_intrhand = NULL; 1781 } 1782 1783 lwkt_serialize_exit(ifp->if_serializer); 1784 1785 ether_ifdetach(ifp); 1786 } 1787 1788 if (sc_if->msk_miibus != NULL) 1789 device_delete_child(dev, sc_if->msk_miibus); 1790 1791 msk_txrx_dma_free(sc_if); 1792 return (0); 1793 } 1794 1795 static int 1796 mskc_detach(device_t dev) 1797 { 1798 struct msk_softc *sc = device_get_softc(dev); 1799 int *port, i; 1800 1801 #ifdef INVARIANTS 1802 if (device_is_attached(dev)) { 1803 KASSERT(sc->msk_intrhand == NULL, 1804 ("intr is not torn down yet")); 1805 } 1806 #endif 1807 1808 for (i = 0; i < sc->msk_num_port; ++i) { 1809 if (sc->msk_devs[i] != NULL) { 1810 port = device_get_ivars(sc->msk_devs[i]); 1811 if (port != NULL) { 1812 kfree(port, M_DEVBUF); 1813 device_set_ivars(sc->msk_devs[i], NULL); 1814 } 1815 device_delete_child(dev, sc->msk_devs[i]); 1816 } 1817 } 1818 1819 /* Disable all interrupts. */ 1820 CSR_WRITE_4(sc, B0_IMSK, 0); 1821 CSR_READ_4(sc, B0_IMSK); 1822 CSR_WRITE_4(sc, B0_HWE_IMSK, 0); 1823 CSR_READ_4(sc, B0_HWE_IMSK); 1824 1825 /* LED Off. */ 1826 CSR_WRITE_2(sc, B0_CTST, Y2_LED_STAT_OFF); 1827 1828 /* Put hardware reset. */ 1829 CSR_WRITE_2(sc, B0_CTST, CS_RST_SET); 1830 1831 mskc_status_dma_free(sc); 1832 1833 if (sc->msk_irq != NULL) { 1834 bus_release_resource(dev, SYS_RES_IRQ, sc->msk_irq_rid, 1835 sc->msk_irq); 1836 } 1837 if (sc->msk_irq_type == PCI_INTR_TYPE_MSI) 1838 pci_release_msi(dev); 1839 1840 if (sc->msk_res != NULL) { 1841 bus_release_resource(dev, sc->msk_res_type, sc->msk_res_rid, 1842 sc->msk_res); 1843 } 1844 1845 if (sc->msk_sysctl_tree != NULL) 1846 sysctl_ctx_free(&sc->msk_sysctl_ctx); 1847 1848 return (0); 1849 } 1850 1851 /* Create status DMA region. */ 1852 static int 1853 mskc_status_dma_alloc(struct msk_softc *sc) 1854 { 1855 bus_dmamem_t dmem; 1856 int error; 1857 1858 error = bus_dmamem_coherent(NULL/* XXX parent */, MSK_STAT_ALIGN, 0, 1859 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 1860 MSK_STAT_RING_SZ, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem); 1861 if (error) { 1862 device_printf(sc->msk_dev, 1863 "failed to create status coherent DMA memory\n"); 1864 return error; 1865 } 1866 sc->msk_stat_tag = dmem.dmem_tag; 1867 sc->msk_stat_map = dmem.dmem_map; 1868 sc->msk_stat_ring = dmem.dmem_addr; 1869 sc->msk_stat_ring_paddr = dmem.dmem_busaddr; 1870 1871 return (0); 1872 } 1873 1874 static void 1875 mskc_status_dma_free(struct msk_softc *sc) 1876 { 1877 /* Destroy status block. */ 1878 if (sc->msk_stat_tag) { 1879 bus_dmamap_unload(sc->msk_stat_tag, sc->msk_stat_map); 1880 bus_dmamem_free(sc->msk_stat_tag, sc->msk_stat_ring, 1881 sc->msk_stat_map); 1882 bus_dma_tag_destroy(sc->msk_stat_tag); 1883 sc->msk_stat_tag = NULL; 1884 } 1885 } 1886 1887 static int 1888 msk_txrx_dma_alloc(struct msk_if_softc *sc_if) 1889 { 1890 int error, i, j; 1891 #ifdef MSK_JUMBO 1892 struct msk_rxdesc *jrxd; 1893 struct msk_jpool_entry *entry; 1894 uint8_t *ptr; 1895 #endif 1896 bus_size_t rxalign; 1897 1898 /* Create parent DMA tag. */ 1899 /* 1900 * XXX 1901 * It seems that Yukon II supports full 64bits DMA operations. But 1902 * it needs two descriptors(list elements) for 64bits DMA operations. 1903 * Since we don't know what DMA address mappings(32bits or 64bits) 1904 * would be used in advance for each mbufs, we limits its DMA space 1905 * to be in range of 32bits address space. Otherwise, we should check 1906 * what DMA address is used and chain another descriptor for the 1907 * 64bits DMA operation. This also means descriptor ring size is 1908 * variable. Limiting DMA address to be in 32bit address space greatly 1909 * simplyfies descriptor handling and possibly would increase 1910 * performance a bit due to efficient handling of descriptors. 1911 * Apart from harassing checksum offloading mechanisms, it seems 1912 * it's really bad idea to use a seperate descriptor for 64bit 1913 * DMA operation to save small descriptor memory. Anyway, I've 1914 * never seen these exotic scheme on ethernet interface hardware. 1915 */ 1916 error = bus_dma_tag_create( 1917 NULL, /* parent */ 1918 1, 0, /* alignment, boundary */ 1919 BUS_SPACE_MAXADDR_32BIT, /* lowaddr */ 1920 BUS_SPACE_MAXADDR, /* highaddr */ 1921 NULL, NULL, /* filter, filterarg */ 1922 BUS_SPACE_MAXSIZE_32BIT, /* maxsize */ 1923 0, /* nsegments */ 1924 BUS_SPACE_MAXSIZE_32BIT, /* maxsegsize */ 1925 0, /* flags */ 1926 &sc_if->msk_cdata.msk_parent_tag); 1927 if (error) { 1928 device_printf(sc_if->msk_if_dev, 1929 "failed to create parent DMA tag\n"); 1930 return error; 1931 } 1932 1933 /* Create DMA stuffs for Tx ring. */ 1934 error = msk_dmamem_create(sc_if->msk_if_dev, MSK_TX_RING_SZ, 1935 &sc_if->msk_cdata.msk_tx_ring_tag, 1936 (void *)&sc_if->msk_rdata.msk_tx_ring, 1937 &sc_if->msk_rdata.msk_tx_ring_paddr, 1938 &sc_if->msk_cdata.msk_tx_ring_map); 1939 if (error) { 1940 device_printf(sc_if->msk_if_dev, 1941 "failed to create TX ring DMA stuffs\n"); 1942 return error; 1943 } 1944 1945 /* Create DMA stuffs for Rx ring. */ 1946 error = msk_dmamem_create(sc_if->msk_if_dev, MSK_RX_RING_SZ, 1947 &sc_if->msk_cdata.msk_rx_ring_tag, 1948 (void *)&sc_if->msk_rdata.msk_rx_ring, 1949 &sc_if->msk_rdata.msk_rx_ring_paddr, 1950 &sc_if->msk_cdata.msk_rx_ring_map); 1951 if (error) { 1952 device_printf(sc_if->msk_if_dev, 1953 "failed to create RX ring DMA stuffs\n"); 1954 return error; 1955 } 1956 1957 /* Create tag for Tx buffers. */ 1958 error = bus_dma_tag_create(sc_if->msk_cdata.msk_parent_tag,/* parent */ 1959 1, 0, /* alignment, boundary */ 1960 BUS_SPACE_MAXADDR, /* lowaddr */ 1961 BUS_SPACE_MAXADDR, /* highaddr */ 1962 NULL, NULL, /* filter, filterarg */ 1963 MSK_JUMBO_FRAMELEN, /* maxsize */ 1964 MSK_MAXTXSEGS, /* nsegments */ 1965 MSK_MAXSGSIZE, /* maxsegsize */ 1966 BUS_DMA_ALLOCNOW | BUS_DMA_WAITOK | 1967 BUS_DMA_ONEBPAGE, /* flags */ 1968 &sc_if->msk_cdata.msk_tx_tag); 1969 if (error) { 1970 device_printf(sc_if->msk_if_dev, 1971 "failed to create Tx DMA tag\n"); 1972 return error; 1973 } 1974 1975 /* Create DMA maps for Tx buffers. */ 1976 for (i = 0; i < MSK_TX_RING_CNT; i++) { 1977 struct msk_txdesc *txd = &sc_if->msk_cdata.msk_txdesc[i]; 1978 1979 error = bus_dmamap_create(sc_if->msk_cdata.msk_tx_tag, 1980 BUS_DMA_WAITOK | BUS_DMA_ONEBPAGE, 1981 &txd->tx_dmamap); 1982 if (error) { 1983 device_printf(sc_if->msk_if_dev, 1984 "failed to create %dth Tx dmamap\n", i); 1985 1986 for (j = 0; j < i; ++j) { 1987 txd = &sc_if->msk_cdata.msk_txdesc[j]; 1988 bus_dmamap_destroy(sc_if->msk_cdata.msk_tx_tag, 1989 txd->tx_dmamap); 1990 } 1991 bus_dma_tag_destroy(sc_if->msk_cdata.msk_tx_tag); 1992 sc_if->msk_cdata.msk_tx_tag = NULL; 1993 1994 return error; 1995 } 1996 } 1997 1998 /* 1999 * Workaround hardware hang which seems to happen when Rx buffer 2000 * is not aligned on multiple of FIFO word(8 bytes). 2001 */ 2002 if (sc_if->msk_flags & MSK_FLAG_RAMBUF) 2003 rxalign = MSK_RX_BUF_ALIGN; 2004 else 2005 rxalign = 1; 2006 2007 /* Create tag for Rx buffers. */ 2008 error = bus_dma_tag_create(sc_if->msk_cdata.msk_parent_tag,/* parent */ 2009 rxalign, 0, /* alignment, boundary */ 2010 BUS_SPACE_MAXADDR, /* lowaddr */ 2011 BUS_SPACE_MAXADDR, /* highaddr */ 2012 NULL, NULL, /* filter, filterarg */ 2013 MCLBYTES, /* maxsize */ 2014 1, /* nsegments */ 2015 MCLBYTES, /* maxsegsize */ 2016 BUS_DMA_ALLOCNOW | BUS_DMA_ALIGNED | 2017 BUS_DMA_WAITOK, /* flags */ 2018 &sc_if->msk_cdata.msk_rx_tag); 2019 if (error) { 2020 device_printf(sc_if->msk_if_dev, 2021 "failed to create Rx DMA tag\n"); 2022 return error; 2023 } 2024 2025 /* Create DMA maps for Rx buffers. */ 2026 error = bus_dmamap_create(sc_if->msk_cdata.msk_rx_tag, BUS_DMA_WAITOK, 2027 &sc_if->msk_cdata.msk_rx_sparemap); 2028 if (error) { 2029 device_printf(sc_if->msk_if_dev, 2030 "failed to create spare Rx dmamap\n"); 2031 bus_dma_tag_destroy(sc_if->msk_cdata.msk_rx_tag); 2032 sc_if->msk_cdata.msk_rx_tag = NULL; 2033 return error; 2034 } 2035 for (i = 0; i < MSK_RX_RING_CNT; i++) { 2036 struct msk_rxdesc *rxd = &sc_if->msk_cdata.msk_rxdesc[i]; 2037 2038 error = bus_dmamap_create(sc_if->msk_cdata.msk_rx_tag, 2039 BUS_DMA_WAITOK, &rxd->rx_dmamap); 2040 if (error) { 2041 device_printf(sc_if->msk_if_dev, 2042 "failed to create %dth Rx dmamap\n", i); 2043 2044 for (j = 0; j < i; ++j) { 2045 rxd = &sc_if->msk_cdata.msk_rxdesc[j]; 2046 bus_dmamap_destroy(sc_if->msk_cdata.msk_rx_tag, 2047 rxd->rx_dmamap); 2048 } 2049 bus_dmamap_destroy(sc_if->msk_cdata.msk_rx_tag, 2050 sc_if->msk_cdata.msk_rx_sparemap); 2051 bus_dma_tag_destroy(sc_if->msk_cdata.msk_rx_tag); 2052 sc_if->msk_cdata.msk_rx_tag = NULL; 2053 2054 return error; 2055 } 2056 } 2057 2058 #ifdef MSK_JUMBO 2059 SLIST_INIT(&sc_if->msk_jfree_listhead); 2060 SLIST_INIT(&sc_if->msk_jinuse_listhead); 2061 2062 /* Create tag for jumbo Rx ring. */ 2063 error = bus_dma_tag_create(sc_if->msk_cdata.msk_parent_tag,/* parent */ 2064 MSK_RING_ALIGN, 0, /* alignment, boundary */ 2065 BUS_SPACE_MAXADDR, /* lowaddr */ 2066 BUS_SPACE_MAXADDR, /* highaddr */ 2067 NULL, NULL, /* filter, filterarg */ 2068 MSK_JUMBO_RX_RING_SZ, /* maxsize */ 2069 1, /* nsegments */ 2070 MSK_JUMBO_RX_RING_SZ, /* maxsegsize */ 2071 0, /* flags */ 2072 NULL, NULL, /* lockfunc, lockarg */ 2073 &sc_if->msk_cdata.msk_jumbo_rx_ring_tag); 2074 if (error != 0) { 2075 device_printf(sc_if->msk_if_dev, 2076 "failed to create jumbo Rx ring DMA tag\n"); 2077 goto fail; 2078 } 2079 2080 /* Allocate DMA'able memory and load the DMA map for jumbo Rx ring. */ 2081 error = bus_dmamem_alloc(sc_if->msk_cdata.msk_jumbo_rx_ring_tag, 2082 (void **)&sc_if->msk_rdata.msk_jumbo_rx_ring, 2083 BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, 2084 &sc_if->msk_cdata.msk_jumbo_rx_ring_map); 2085 if (error != 0) { 2086 device_printf(sc_if->msk_if_dev, 2087 "failed to allocate DMA'able memory for jumbo Rx ring\n"); 2088 goto fail; 2089 } 2090 2091 ctx.msk_busaddr = 0; 2092 error = bus_dmamap_load(sc_if->msk_cdata.msk_jumbo_rx_ring_tag, 2093 sc_if->msk_cdata.msk_jumbo_rx_ring_map, 2094 sc_if->msk_rdata.msk_jumbo_rx_ring, MSK_JUMBO_RX_RING_SZ, 2095 msk_dmamap_cb, &ctx, 0); 2096 if (error != 0) { 2097 device_printf(sc_if->msk_if_dev, 2098 "failed to load DMA'able memory for jumbo Rx ring\n"); 2099 goto fail; 2100 } 2101 sc_if->msk_rdata.msk_jumbo_rx_ring_paddr = ctx.msk_busaddr; 2102 2103 /* Create tag for jumbo buffer blocks. */ 2104 error = bus_dma_tag_create(sc_if->msk_cdata.msk_parent_tag,/* parent */ 2105 PAGE_SIZE, 0, /* alignment, boundary */ 2106 BUS_SPACE_MAXADDR, /* lowaddr */ 2107 BUS_SPACE_MAXADDR, /* highaddr */ 2108 NULL, NULL, /* filter, filterarg */ 2109 MSK_JMEM, /* maxsize */ 2110 1, /* nsegments */ 2111 MSK_JMEM, /* maxsegsize */ 2112 0, /* flags */ 2113 NULL, NULL, /* lockfunc, lockarg */ 2114 &sc_if->msk_cdata.msk_jumbo_tag); 2115 if (error != 0) { 2116 device_printf(sc_if->msk_if_dev, 2117 "failed to create jumbo Rx buffer block DMA tag\n"); 2118 goto fail; 2119 } 2120 2121 /* Create tag for jumbo Rx buffers. */ 2122 error = bus_dma_tag_create(sc_if->msk_cdata.msk_parent_tag,/* parent */ 2123 PAGE_SIZE, 0, /* alignment, boundary */ 2124 BUS_SPACE_MAXADDR, /* lowaddr */ 2125 BUS_SPACE_MAXADDR, /* highaddr */ 2126 NULL, NULL, /* filter, filterarg */ 2127 MCLBYTES * MSK_MAXRXSEGS, /* maxsize */ 2128 MSK_MAXRXSEGS, /* nsegments */ 2129 MSK_JLEN, /* maxsegsize */ 2130 0, /* flags */ 2131 NULL, NULL, /* lockfunc, lockarg */ 2132 &sc_if->msk_cdata.msk_jumbo_rx_tag); 2133 if (error != 0) { 2134 device_printf(sc_if->msk_if_dev, 2135 "failed to create jumbo Rx DMA tag\n"); 2136 goto fail; 2137 } 2138 2139 /* Create DMA maps for jumbo Rx buffers. */ 2140 if ((error = bus_dmamap_create(sc_if->msk_cdata.msk_jumbo_rx_tag, 0, 2141 &sc_if->msk_cdata.msk_jumbo_rx_sparemap)) != 0) { 2142 device_printf(sc_if->msk_if_dev, 2143 "failed to create spare jumbo Rx dmamap\n"); 2144 goto fail; 2145 } 2146 for (i = 0; i < MSK_JUMBO_RX_RING_CNT; i++) { 2147 jrxd = &sc_if->msk_cdata.msk_jumbo_rxdesc[i]; 2148 jrxd->rx_m = NULL; 2149 jrxd->rx_dmamap = NULL; 2150 error = bus_dmamap_create(sc_if->msk_cdata.msk_jumbo_rx_tag, 0, 2151 &jrxd->rx_dmamap); 2152 if (error != 0) { 2153 device_printf(sc_if->msk_if_dev, 2154 "failed to create jumbo Rx dmamap\n"); 2155 goto fail; 2156 } 2157 } 2158 2159 /* Allocate DMA'able memory and load the DMA map for jumbo buf. */ 2160 error = bus_dmamem_alloc(sc_if->msk_cdata.msk_jumbo_tag, 2161 (void **)&sc_if->msk_rdata.msk_jumbo_buf, 2162 BUS_DMA_WAITOK | BUS_DMA_COHERENT | BUS_DMA_ZERO, 2163 &sc_if->msk_cdata.msk_jumbo_map); 2164 if (error != 0) { 2165 device_printf(sc_if->msk_if_dev, 2166 "failed to allocate DMA'able memory for jumbo buf\n"); 2167 goto fail; 2168 } 2169 2170 ctx.msk_busaddr = 0; 2171 error = bus_dmamap_load(sc_if->msk_cdata.msk_jumbo_tag, 2172 sc_if->msk_cdata.msk_jumbo_map, sc_if->msk_rdata.msk_jumbo_buf, 2173 MSK_JMEM, msk_dmamap_cb, &ctx, 0); 2174 if (error != 0) { 2175 device_printf(sc_if->msk_if_dev, 2176 "failed to load DMA'able memory for jumbobuf\n"); 2177 goto fail; 2178 } 2179 sc_if->msk_rdata.msk_jumbo_buf_paddr = ctx.msk_busaddr; 2180 2181 /* 2182 * Now divide it up into 9K pieces and save the addresses 2183 * in an array. 2184 */ 2185 ptr = sc_if->msk_rdata.msk_jumbo_buf; 2186 for (i = 0; i < MSK_JSLOTS; i++) { 2187 sc_if->msk_cdata.msk_jslots[i] = ptr; 2188 ptr += MSK_JLEN; 2189 entry = malloc(sizeof(struct msk_jpool_entry), 2190 M_DEVBUF, M_WAITOK); 2191 if (entry == NULL) { 2192 device_printf(sc_if->msk_if_dev, 2193 "no memory for jumbo buffers!\n"); 2194 error = ENOMEM; 2195 goto fail; 2196 } 2197 entry->slot = i; 2198 SLIST_INSERT_HEAD(&sc_if->msk_jfree_listhead, entry, 2199 jpool_entries); 2200 } 2201 #endif 2202 return 0; 2203 } 2204 2205 static void 2206 msk_txrx_dma_free(struct msk_if_softc *sc_if) 2207 { 2208 struct msk_txdesc *txd; 2209 struct msk_rxdesc *rxd; 2210 #ifdef MSK_JUMBO 2211 struct msk_rxdesc *jrxd; 2212 struct msk_jpool_entry *entry; 2213 #endif 2214 int i; 2215 2216 #ifdef MSK_JUMBO 2217 MSK_JLIST_LOCK(sc_if); 2218 while ((entry = SLIST_FIRST(&sc_if->msk_jinuse_listhead))) { 2219 device_printf(sc_if->msk_if_dev, 2220 "asked to free buffer that is in use!\n"); 2221 SLIST_REMOVE_HEAD(&sc_if->msk_jinuse_listhead, jpool_entries); 2222 SLIST_INSERT_HEAD(&sc_if->msk_jfree_listhead, entry, 2223 jpool_entries); 2224 } 2225 2226 while (!SLIST_EMPTY(&sc_if->msk_jfree_listhead)) { 2227 entry = SLIST_FIRST(&sc_if->msk_jfree_listhead); 2228 SLIST_REMOVE_HEAD(&sc_if->msk_jfree_listhead, jpool_entries); 2229 free(entry, M_DEVBUF); 2230 } 2231 MSK_JLIST_UNLOCK(sc_if); 2232 2233 /* Destroy jumbo buffer block. */ 2234 if (sc_if->msk_cdata.msk_jumbo_map) 2235 bus_dmamap_unload(sc_if->msk_cdata.msk_jumbo_tag, 2236 sc_if->msk_cdata.msk_jumbo_map); 2237 2238 if (sc_if->msk_rdata.msk_jumbo_buf) { 2239 bus_dmamem_free(sc_if->msk_cdata.msk_jumbo_tag, 2240 sc_if->msk_rdata.msk_jumbo_buf, 2241 sc_if->msk_cdata.msk_jumbo_map); 2242 sc_if->msk_rdata.msk_jumbo_buf = NULL; 2243 sc_if->msk_cdata.msk_jumbo_map = NULL; 2244 } 2245 2246 /* Jumbo Rx ring. */ 2247 if (sc_if->msk_cdata.msk_jumbo_rx_ring_tag) { 2248 if (sc_if->msk_cdata.msk_jumbo_rx_ring_map) 2249 bus_dmamap_unload(sc_if->msk_cdata.msk_jumbo_rx_ring_tag, 2250 sc_if->msk_cdata.msk_jumbo_rx_ring_map); 2251 if (sc_if->msk_cdata.msk_jumbo_rx_ring_map && 2252 sc_if->msk_rdata.msk_jumbo_rx_ring) 2253 bus_dmamem_free(sc_if->msk_cdata.msk_jumbo_rx_ring_tag, 2254 sc_if->msk_rdata.msk_jumbo_rx_ring, 2255 sc_if->msk_cdata.msk_jumbo_rx_ring_map); 2256 sc_if->msk_rdata.msk_jumbo_rx_ring = NULL; 2257 sc_if->msk_cdata.msk_jumbo_rx_ring_map = NULL; 2258 bus_dma_tag_destroy(sc_if->msk_cdata.msk_jumbo_rx_ring_tag); 2259 sc_if->msk_cdata.msk_jumbo_rx_ring_tag = NULL; 2260 } 2261 2262 /* Jumbo Rx buffers. */ 2263 if (sc_if->msk_cdata.msk_jumbo_rx_tag) { 2264 for (i = 0; i < MSK_JUMBO_RX_RING_CNT; i++) { 2265 jrxd = &sc_if->msk_cdata.msk_jumbo_rxdesc[i]; 2266 if (jrxd->rx_dmamap) { 2267 bus_dmamap_destroy( 2268 sc_if->msk_cdata.msk_jumbo_rx_tag, 2269 jrxd->rx_dmamap); 2270 jrxd->rx_dmamap = NULL; 2271 } 2272 } 2273 if (sc_if->msk_cdata.msk_jumbo_rx_sparemap) { 2274 bus_dmamap_destroy(sc_if->msk_cdata.msk_jumbo_rx_tag, 2275 sc_if->msk_cdata.msk_jumbo_rx_sparemap); 2276 sc_if->msk_cdata.msk_jumbo_rx_sparemap = 0; 2277 } 2278 bus_dma_tag_destroy(sc_if->msk_cdata.msk_jumbo_rx_tag); 2279 sc_if->msk_cdata.msk_jumbo_rx_tag = NULL; 2280 } 2281 #endif 2282 2283 /* Tx ring. */ 2284 msk_dmamem_destroy(sc_if->msk_cdata.msk_tx_ring_tag, 2285 sc_if->msk_rdata.msk_tx_ring, 2286 sc_if->msk_cdata.msk_tx_ring_map); 2287 2288 /* Rx ring. */ 2289 msk_dmamem_destroy(sc_if->msk_cdata.msk_rx_ring_tag, 2290 sc_if->msk_rdata.msk_rx_ring, 2291 sc_if->msk_cdata.msk_rx_ring_map); 2292 2293 /* Tx buffers. */ 2294 if (sc_if->msk_cdata.msk_tx_tag) { 2295 for (i = 0; i < MSK_TX_RING_CNT; i++) { 2296 txd = &sc_if->msk_cdata.msk_txdesc[i]; 2297 bus_dmamap_destroy(sc_if->msk_cdata.msk_tx_tag, 2298 txd->tx_dmamap); 2299 } 2300 bus_dma_tag_destroy(sc_if->msk_cdata.msk_tx_tag); 2301 sc_if->msk_cdata.msk_tx_tag = NULL; 2302 } 2303 2304 /* Rx buffers. */ 2305 if (sc_if->msk_cdata.msk_rx_tag) { 2306 for (i = 0; i < MSK_RX_RING_CNT; i++) { 2307 rxd = &sc_if->msk_cdata.msk_rxdesc[i]; 2308 bus_dmamap_destroy(sc_if->msk_cdata.msk_rx_tag, 2309 rxd->rx_dmamap); 2310 } 2311 bus_dmamap_destroy(sc_if->msk_cdata.msk_rx_tag, 2312 sc_if->msk_cdata.msk_rx_sparemap); 2313 bus_dma_tag_destroy(sc_if->msk_cdata.msk_rx_tag); 2314 sc_if->msk_cdata.msk_rx_tag = NULL; 2315 } 2316 2317 if (sc_if->msk_cdata.msk_parent_tag) { 2318 bus_dma_tag_destroy(sc_if->msk_cdata.msk_parent_tag); 2319 sc_if->msk_cdata.msk_parent_tag = NULL; 2320 } 2321 } 2322 2323 #ifdef MSK_JUMBO 2324 /* 2325 * Allocate a jumbo buffer. 2326 */ 2327 static void * 2328 msk_jalloc(struct msk_if_softc *sc_if) 2329 { 2330 struct msk_jpool_entry *entry; 2331 2332 MSK_JLIST_LOCK(sc_if); 2333 2334 entry = SLIST_FIRST(&sc_if->msk_jfree_listhead); 2335 2336 if (entry == NULL) { 2337 MSK_JLIST_UNLOCK(sc_if); 2338 return (NULL); 2339 } 2340 2341 SLIST_REMOVE_HEAD(&sc_if->msk_jfree_listhead, jpool_entries); 2342 SLIST_INSERT_HEAD(&sc_if->msk_jinuse_listhead, entry, jpool_entries); 2343 2344 MSK_JLIST_UNLOCK(sc_if); 2345 2346 return (sc_if->msk_cdata.msk_jslots[entry->slot]); 2347 } 2348 2349 /* 2350 * Release a jumbo buffer. 2351 */ 2352 static void 2353 msk_jfree(void *buf, void *args) 2354 { 2355 struct msk_if_softc *sc_if; 2356 struct msk_jpool_entry *entry; 2357 int i; 2358 2359 /* Extract the softc struct pointer. */ 2360 sc_if = (struct msk_if_softc *)args; 2361 KASSERT(sc_if != NULL, ("%s: can't find softc pointer!", __func__)); 2362 2363 MSK_JLIST_LOCK(sc_if); 2364 /* Calculate the slot this buffer belongs to. */ 2365 i = ((vm_offset_t)buf 2366 - (vm_offset_t)sc_if->msk_rdata.msk_jumbo_buf) / MSK_JLEN; 2367 KASSERT(i >= 0 && i < MSK_JSLOTS, 2368 ("%s: asked to free buffer that we don't manage!", __func__)); 2369 2370 entry = SLIST_FIRST(&sc_if->msk_jinuse_listhead); 2371 KASSERT(entry != NULL, ("%s: buffer not in use!", __func__)); 2372 entry->slot = i; 2373 SLIST_REMOVE_HEAD(&sc_if->msk_jinuse_listhead, jpool_entries); 2374 SLIST_INSERT_HEAD(&sc_if->msk_jfree_listhead, entry, jpool_entries); 2375 if (SLIST_EMPTY(&sc_if->msk_jinuse_listhead)) 2376 wakeup(sc_if); 2377 2378 MSK_JLIST_UNLOCK(sc_if); 2379 } 2380 #endif 2381 2382 static int 2383 msk_encap(struct msk_if_softc *sc_if, struct mbuf **m_head) 2384 { 2385 struct msk_txdesc *txd, *txd_last; 2386 struct msk_tx_desc *tx_le; 2387 struct mbuf *m; 2388 bus_dmamap_t map; 2389 bus_dma_segment_t txsegs[MSK_MAXTXSEGS]; 2390 uint32_t control, prod, si; 2391 uint16_t offset, tcp_offset; 2392 int error, i, nsegs, maxsegs, defrag; 2393 2394 maxsegs = MSK_TX_RING_CNT - sc_if->msk_cdata.msk_tx_cnt - 2395 MSK_RESERVED_TX_DESC_CNT; 2396 KASSERT(maxsegs >= MSK_SPARE_TX_DESC_CNT, 2397 ("not enough spare TX desc")); 2398 if (maxsegs > MSK_MAXTXSEGS) 2399 maxsegs = MSK_MAXTXSEGS; 2400 2401 /* 2402 * Align TX buffer to 64bytes boundary. This greately improves 2403 * bulk data TX performance on my 88E8053 (+100Mbps) at least. 2404 * Try avoiding m_defrag(), if the mbufs are not chained together 2405 * by m_next (i.e. m->m_len == m->m_pkthdr.len). 2406 */ 2407 2408 #define MSK_TXBUF_ALIGN 64 2409 #define MSK_TXBUF_MASK (MSK_TXBUF_ALIGN - 1) 2410 2411 defrag = 1; 2412 m = *m_head; 2413 if (m->m_len == m->m_pkthdr.len) { 2414 int space; 2415 2416 space = ((uintptr_t)m->m_data & MSK_TXBUF_MASK); 2417 if (space) { 2418 if (M_WRITABLE(m)) { 2419 if (M_TRAILINGSPACE(m) >= space) { 2420 /* e.g. TCP ACKs */ 2421 bcopy(m->m_data, m->m_data + space, 2422 m->m_len); 2423 m->m_data += space; 2424 defrag = 0; 2425 sc_if->msk_softc->msk_trailing_copied++; 2426 } else { 2427 space = MSK_TXBUF_ALIGN - space; 2428 if (M_LEADINGSPACE(m) >= space) { 2429 /* e.g. Small UDP datagrams */ 2430 bcopy(m->m_data, 2431 m->m_data - space, 2432 m->m_len); 2433 m->m_data -= space; 2434 defrag = 0; 2435 sc_if->msk_softc-> 2436 msk_leading_copied++; 2437 } 2438 } 2439 } 2440 } else { 2441 /* e.g. on forwarding path */ 2442 defrag = 0; 2443 } 2444 } 2445 if (defrag) { 2446 m = m_defrag(*m_head, MB_DONTWAIT); 2447 if (m == NULL) { 2448 m_freem(*m_head); 2449 *m_head = NULL; 2450 return ENOBUFS; 2451 } 2452 *m_head = m; 2453 } else { 2454 sc_if->msk_softc->msk_defrag_avoided++; 2455 } 2456 2457 #undef MSK_TXBUF_MASK 2458 #undef MSK_TXBUF_ALIGN 2459 2460 tcp_offset = offset = 0; 2461 if (m->m_pkthdr.csum_flags & MSK_CSUM_FEATURES) { 2462 /* 2463 * Since mbuf has no protocol specific structure information 2464 * in it we have to inspect protocol information here to 2465 * setup TSO and checksum offload. I don't know why Marvell 2466 * made a such decision in chip design because other GigE 2467 * hardwares normally takes care of all these chores in 2468 * hardware. However, TSO performance of Yukon II is very 2469 * good such that it's worth to implement it. 2470 */ 2471 struct ether_header *eh; 2472 struct ip *ip; 2473 2474 /* TODO check for M_WRITABLE(m) */ 2475 2476 offset = sizeof(struct ether_header); 2477 m = m_pullup(m, offset); 2478 if (m == NULL) { 2479 *m_head = NULL; 2480 return (ENOBUFS); 2481 } 2482 eh = mtod(m, struct ether_header *); 2483 /* Check if hardware VLAN insertion is off. */ 2484 if (eh->ether_type == htons(ETHERTYPE_VLAN)) { 2485 offset = sizeof(struct ether_vlan_header); 2486 m = m_pullup(m, offset); 2487 if (m == NULL) { 2488 *m_head = NULL; 2489 return (ENOBUFS); 2490 } 2491 } 2492 m = m_pullup(m, offset + sizeof(struct ip)); 2493 if (m == NULL) { 2494 *m_head = NULL; 2495 return (ENOBUFS); 2496 } 2497 ip = (struct ip *)(mtod(m, char *) + offset); 2498 offset += (ip->ip_hl << 2); 2499 tcp_offset = offset; 2500 /* 2501 * It seems that Yukon II has Tx checksum offload bug for 2502 * small TCP packets that's less than 60 bytes in size 2503 * (e.g. TCP window probe packet, pure ACK packet). 2504 * Common work around like padding with zeros to make the 2505 * frame minimum ethernet frame size didn't work at all. 2506 * Instead of disabling checksum offload completely we 2507 * resort to S/W checksum routine when we encounter short 2508 * TCP frames. 2509 * Short UDP packets appear to be handled correctly by 2510 * Yukon II. 2511 */ 2512 if (m->m_pkthdr.len < MSK_MIN_FRAMELEN && 2513 (m->m_pkthdr.csum_flags & CSUM_TCP) != 0) { 2514 uint16_t csum; 2515 2516 csum = in_cksum_skip(m, ntohs(ip->ip_len) + offset - 2517 (ip->ip_hl << 2), offset); 2518 *(uint16_t *)(m->m_data + offset + 2519 m->m_pkthdr.csum_data) = csum; 2520 m->m_pkthdr.csum_flags &= ~CSUM_TCP; 2521 } 2522 *m_head = m; 2523 } 2524 2525 prod = sc_if->msk_cdata.msk_tx_prod; 2526 txd = &sc_if->msk_cdata.msk_txdesc[prod]; 2527 txd_last = txd; 2528 map = txd->tx_dmamap; 2529 2530 error = bus_dmamap_load_mbuf_defrag(sc_if->msk_cdata.msk_tx_tag, map, 2531 m_head, txsegs, maxsegs, &nsegs, BUS_DMA_NOWAIT); 2532 if (error) { 2533 m_freem(*m_head); 2534 *m_head = NULL; 2535 return error; 2536 } 2537 bus_dmamap_sync(sc_if->msk_cdata.msk_tx_tag, map, BUS_DMASYNC_PREWRITE); 2538 2539 m = *m_head; 2540 control = 0; 2541 tx_le = NULL; 2542 2543 #ifdef notyet 2544 /* Check if we have a VLAN tag to insert. */ 2545 if ((m->m_flags & M_VLANTAG) != 0) { 2546 tx_le = &sc_if->msk_rdata.msk_tx_ring[prod]; 2547 tx_le->msk_addr = htole32(0); 2548 tx_le->msk_control = htole32(OP_VLAN | HW_OWNER | 2549 htons(m->m_pkthdr.ether_vtag)); 2550 sc_if->msk_cdata.msk_tx_cnt++; 2551 MSK_INC(prod, MSK_TX_RING_CNT); 2552 control |= INS_VLAN; 2553 } 2554 #endif 2555 /* Check if we have to handle checksum offload. */ 2556 if (m->m_pkthdr.csum_flags & MSK_CSUM_FEATURES) { 2557 tx_le = &sc_if->msk_rdata.msk_tx_ring[prod]; 2558 tx_le->msk_addr = htole32(((tcp_offset + m->m_pkthdr.csum_data) 2559 & 0xffff) | ((uint32_t)tcp_offset << 16)); 2560 tx_le->msk_control = htole32(1 << 16 | (OP_TCPLISW | HW_OWNER)); 2561 control = CALSUM | WR_SUM | INIT_SUM | LOCK_SUM; 2562 if ((m->m_pkthdr.csum_flags & CSUM_UDP) != 0) 2563 control |= UDPTCP; 2564 sc_if->msk_cdata.msk_tx_cnt++; 2565 MSK_INC(prod, MSK_TX_RING_CNT); 2566 } 2567 2568 si = prod; 2569 tx_le = &sc_if->msk_rdata.msk_tx_ring[prod]; 2570 tx_le->msk_addr = htole32(MSK_ADDR_LO(txsegs[0].ds_addr)); 2571 tx_le->msk_control = htole32(txsegs[0].ds_len | control | 2572 OP_PACKET); 2573 sc_if->msk_cdata.msk_tx_cnt++; 2574 MSK_INC(prod, MSK_TX_RING_CNT); 2575 2576 for (i = 1; i < nsegs; i++) { 2577 tx_le = &sc_if->msk_rdata.msk_tx_ring[prod]; 2578 tx_le->msk_addr = htole32(MSK_ADDR_LO(txsegs[i].ds_addr)); 2579 tx_le->msk_control = htole32(txsegs[i].ds_len | control | 2580 OP_BUFFER | HW_OWNER); 2581 sc_if->msk_cdata.msk_tx_cnt++; 2582 MSK_INC(prod, MSK_TX_RING_CNT); 2583 } 2584 /* Update producer index. */ 2585 sc_if->msk_cdata.msk_tx_prod = prod; 2586 2587 /* Set EOP on the last desciptor. */ 2588 prod = (prod + MSK_TX_RING_CNT - 1) % MSK_TX_RING_CNT; 2589 tx_le = &sc_if->msk_rdata.msk_tx_ring[prod]; 2590 tx_le->msk_control |= htole32(EOP); 2591 2592 /* Turn the first descriptor ownership to hardware. */ 2593 tx_le = &sc_if->msk_rdata.msk_tx_ring[si]; 2594 tx_le->msk_control |= htole32(HW_OWNER); 2595 2596 txd = &sc_if->msk_cdata.msk_txdesc[prod]; 2597 map = txd_last->tx_dmamap; 2598 txd_last->tx_dmamap = txd->tx_dmamap; 2599 txd->tx_dmamap = map; 2600 txd->tx_m = m; 2601 2602 return (0); 2603 } 2604 2605 static void 2606 msk_start(struct ifnet *ifp, struct ifaltq_subque *ifsq) 2607 { 2608 struct msk_if_softc *sc_if; 2609 struct mbuf *m_head; 2610 int enq; 2611 2612 sc_if = ifp->if_softc; 2613 2614 ASSERT_ALTQ_SQ_DEFAULT(ifp, ifsq); 2615 ASSERT_SERIALIZED(ifp->if_serializer); 2616 2617 if (!sc_if->msk_link) { 2618 ifq_purge(&ifp->if_snd); 2619 return; 2620 } 2621 2622 if ((ifp->if_flags & IFF_RUNNING) == 0 || ifq_is_oactive(&ifp->if_snd)) 2623 return; 2624 2625 enq = 0; 2626 while (!ifq_is_empty(&ifp->if_snd)) { 2627 if (MSK_IS_OACTIVE(sc_if)) { 2628 ifq_set_oactive(&ifp->if_snd); 2629 break; 2630 } 2631 2632 m_head = ifq_dequeue(&ifp->if_snd); 2633 if (m_head == NULL) 2634 break; 2635 2636 /* 2637 * Pack the data into the transmit ring. If we 2638 * don't have room, set the OACTIVE flag and wait 2639 * for the NIC to drain the ring. 2640 */ 2641 if (msk_encap(sc_if, &m_head) != 0) { 2642 IFNET_STAT_INC(ifp, oerrors, 1); 2643 if (sc_if->msk_cdata.msk_tx_cnt == 0) { 2644 continue; 2645 } else { 2646 ifq_set_oactive(&ifp->if_snd); 2647 break; 2648 } 2649 } 2650 enq = 1; 2651 2652 /* 2653 * If there's a BPF listener, bounce a copy of this frame 2654 * to him. 2655 */ 2656 BPF_MTAP(ifp, m_head); 2657 } 2658 2659 if (enq) { 2660 /* Transmit */ 2661 CSR_WRITE_2(sc_if->msk_softc, 2662 Y2_PREF_Q_ADDR(sc_if->msk_txq, PREF_UNIT_PUT_IDX_REG), 2663 sc_if->msk_cdata.msk_tx_prod); 2664 2665 /* Set a timeout in case the chip goes out to lunch. */ 2666 ifp->if_timer = MSK_TX_TIMEOUT; 2667 } 2668 } 2669 2670 static void 2671 msk_watchdog(struct ifnet *ifp) 2672 { 2673 struct msk_if_softc *sc_if = ifp->if_softc; 2674 uint32_t ridx; 2675 int idx; 2676 2677 ASSERT_SERIALIZED(ifp->if_serializer); 2678 2679 if (sc_if->msk_link == 0) { 2680 if (bootverbose) 2681 if_printf(sc_if->msk_ifp, "watchdog timeout " 2682 "(missed link)\n"); 2683 IFNET_STAT_INC(ifp, oerrors, 1); 2684 msk_init(sc_if); 2685 return; 2686 } 2687 2688 /* 2689 * Reclaim first as there is a possibility of losing Tx completion 2690 * interrupts. 2691 */ 2692 ridx = sc_if->msk_port == MSK_PORT_A ? STAT_TXA1_RIDX : STAT_TXA2_RIDX; 2693 idx = CSR_READ_2(sc_if->msk_softc, ridx); 2694 if (sc_if->msk_cdata.msk_tx_cons != idx) { 2695 msk_txeof(sc_if, idx); 2696 if (sc_if->msk_cdata.msk_tx_cnt == 0) { 2697 if_printf(ifp, "watchdog timeout (missed Tx interrupts) " 2698 "-- recovering\n"); 2699 if (!ifq_is_empty(&ifp->if_snd)) 2700 if_devstart(ifp); 2701 return; 2702 } 2703 } 2704 2705 if_printf(ifp, "watchdog timeout\n"); 2706 IFNET_STAT_INC(ifp, oerrors, 1); 2707 msk_init(sc_if); 2708 if (!ifq_is_empty(&ifp->if_snd)) 2709 if_devstart(ifp); 2710 } 2711 2712 static int 2713 mskc_shutdown(device_t dev) 2714 { 2715 struct msk_softc *sc = device_get_softc(dev); 2716 int i; 2717 2718 lwkt_serialize_enter(&sc->msk_serializer); 2719 2720 for (i = 0; i < sc->msk_num_port; i++) { 2721 if (sc->msk_if[i] != NULL) 2722 msk_stop(sc->msk_if[i]); 2723 } 2724 2725 /* Put hardware reset. */ 2726 CSR_WRITE_2(sc, B0_CTST, CS_RST_SET); 2727 2728 lwkt_serialize_exit(&sc->msk_serializer); 2729 return (0); 2730 } 2731 2732 static int 2733 mskc_suspend(device_t dev) 2734 { 2735 struct msk_softc *sc = device_get_softc(dev); 2736 int i; 2737 2738 lwkt_serialize_enter(&sc->msk_serializer); 2739 2740 for (i = 0; i < sc->msk_num_port; i++) { 2741 if (sc->msk_if[i] != NULL && sc->msk_if[i]->msk_ifp != NULL && 2742 ((sc->msk_if[i]->msk_ifp->if_flags & IFF_RUNNING) != 0)) 2743 msk_stop(sc->msk_if[i]); 2744 } 2745 2746 /* Disable all interrupts. */ 2747 CSR_WRITE_4(sc, B0_IMSK, 0); 2748 CSR_READ_4(sc, B0_IMSK); 2749 CSR_WRITE_4(sc, B0_HWE_IMSK, 0); 2750 CSR_READ_4(sc, B0_HWE_IMSK); 2751 2752 mskc_phy_power(sc, MSK_PHY_POWERDOWN); 2753 2754 /* Put hardware reset. */ 2755 CSR_WRITE_2(sc, B0_CTST, CS_RST_SET); 2756 sc->msk_suspended = 1; 2757 2758 lwkt_serialize_exit(&sc->msk_serializer); 2759 2760 return (0); 2761 } 2762 2763 static int 2764 mskc_resume(device_t dev) 2765 { 2766 struct msk_softc *sc = device_get_softc(dev); 2767 int i; 2768 2769 lwkt_serialize_enter(&sc->msk_serializer); 2770 2771 /* Enable all clocks before accessing any registers. */ 2772 CSR_PCI_WRITE_4(sc, PCI_OUR_REG_3, 0); 2773 mskc_reset(sc); 2774 for (i = 0; i < sc->msk_num_port; i++) { 2775 if (sc->msk_if[i] != NULL && sc->msk_if[i]->msk_ifp != NULL && 2776 ((sc->msk_if[i]->msk_ifp->if_flags & IFF_UP) != 0)) 2777 msk_init(sc->msk_if[i]); 2778 } 2779 sc->msk_suspended = 0; 2780 2781 lwkt_serialize_exit(&sc->msk_serializer); 2782 2783 return (0); 2784 } 2785 2786 static void 2787 msk_rxeof(struct msk_if_softc *sc_if, uint32_t status, int len) 2788 { 2789 struct mbuf *m; 2790 struct ifnet *ifp; 2791 struct msk_rxdesc *rxd; 2792 int cons, rxlen; 2793 2794 ifp = sc_if->msk_ifp; 2795 2796 cons = sc_if->msk_cdata.msk_rx_cons; 2797 do { 2798 rxlen = status >> 16; 2799 if ((status & GMR_FS_VLAN) != 0 && 2800 (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0) 2801 rxlen -= EVL_ENCAPLEN; 2802 if (sc_if->msk_flags & MSK_FLAG_NORXCHK) { 2803 /* 2804 * For controllers that returns bogus status code 2805 * just do minimal check and let upper stack 2806 * handle this frame. 2807 */ 2808 if (len > MSK_MAX_FRAMELEN || len < ETHER_HDR_LEN) { 2809 IFNET_STAT_INC(ifp, ierrors, 1); 2810 msk_discard_rxbuf(sc_if, cons); 2811 break; 2812 } 2813 } else if (len > sc_if->msk_framesize || 2814 ((status & GMR_FS_ANY_ERR) != 0) || 2815 ((status & GMR_FS_RX_OK) == 0) || (rxlen != len)) { 2816 /* Don't count flow-control packet as errors. */ 2817 if ((status & GMR_FS_GOOD_FC) == 0) 2818 IFNET_STAT_INC(ifp, ierrors, 1); 2819 msk_discard_rxbuf(sc_if, cons); 2820 break; 2821 } 2822 rxd = &sc_if->msk_cdata.msk_rxdesc[cons]; 2823 m = rxd->rx_m; 2824 if (msk_newbuf(sc_if, cons, 0) != 0) { 2825 IFNET_STAT_INC(ifp, iqdrops, 1); 2826 /* Reuse old buffer. */ 2827 msk_discard_rxbuf(sc_if, cons); 2828 break; 2829 } 2830 m->m_pkthdr.rcvif = ifp; 2831 m->m_pkthdr.len = m->m_len = len; 2832 IFNET_STAT_INC(ifp, ipackets, 1); 2833 #ifdef notyet 2834 /* Check for VLAN tagged packets. */ 2835 if ((status & GMR_FS_VLAN) != 0 && 2836 (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0) { 2837 m->m_pkthdr.ether_vtag = sc_if->msk_vtag; 2838 m->m_flags |= M_VLANTAG; 2839 } 2840 #endif 2841 2842 ifp->if_input(ifp, m); 2843 } while (0); 2844 2845 MSK_INC(sc_if->msk_cdata.msk_rx_cons, MSK_RX_RING_CNT); 2846 MSK_INC(sc_if->msk_cdata.msk_rx_prod, MSK_RX_RING_CNT); 2847 } 2848 2849 #ifdef MSK_JUMBO 2850 static void 2851 msk_jumbo_rxeof(struct msk_if_softc *sc_if, uint32_t status, int len) 2852 { 2853 struct mbuf *m; 2854 struct ifnet *ifp; 2855 struct msk_rxdesc *jrxd; 2856 int cons, rxlen; 2857 2858 ifp = sc_if->msk_ifp; 2859 2860 MSK_IF_LOCK_ASSERT(sc_if); 2861 2862 cons = sc_if->msk_cdata.msk_rx_cons; 2863 do { 2864 rxlen = status >> 16; 2865 if ((status & GMR_FS_VLAN) != 0 && 2866 (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0) 2867 rxlen -= ETHER_VLAN_ENCAP_LEN; 2868 if (len > sc_if->msk_framesize || 2869 ((status & GMR_FS_ANY_ERR) != 0) || 2870 ((status & GMR_FS_RX_OK) == 0) || (rxlen != len)) { 2871 /* Don't count flow-control packet as errors. */ 2872 if ((status & GMR_FS_GOOD_FC) == 0) 2873 ifp->if_ierrors++; 2874 msk_discard_jumbo_rxbuf(sc_if, cons); 2875 break; 2876 } 2877 jrxd = &sc_if->msk_cdata.msk_jumbo_rxdesc[cons]; 2878 m = jrxd->rx_m; 2879 if (msk_jumbo_newbuf(sc_if, cons) != 0) { 2880 ifp->if_iqdrops++; 2881 /* Reuse old buffer. */ 2882 msk_discard_jumbo_rxbuf(sc_if, cons); 2883 break; 2884 } 2885 m->m_pkthdr.rcvif = ifp; 2886 m->m_pkthdr.len = m->m_len = len; 2887 ifp->if_ipackets++; 2888 /* Check for VLAN tagged packets. */ 2889 if ((status & GMR_FS_VLAN) != 0 && 2890 (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) != 0) { 2891 m->m_pkthdr.ether_vtag = sc_if->msk_vtag; 2892 m->m_flags |= M_VLANTAG; 2893 } 2894 MSK_IF_UNLOCK(sc_if); 2895 (*ifp->if_input)(ifp, m); 2896 MSK_IF_LOCK(sc_if); 2897 } while (0); 2898 2899 MSK_INC(sc_if->msk_cdata.msk_rx_cons, MSK_JUMBO_RX_RING_CNT); 2900 MSK_INC(sc_if->msk_cdata.msk_rx_prod, MSK_JUMBO_RX_RING_CNT); 2901 } 2902 #endif 2903 2904 static void 2905 msk_txeof(struct msk_if_softc *sc_if, int idx) 2906 { 2907 struct msk_txdesc *txd; 2908 struct msk_tx_desc *cur_tx; 2909 struct ifnet *ifp; 2910 uint32_t control; 2911 int cons, prog; 2912 2913 ifp = sc_if->msk_ifp; 2914 2915 /* 2916 * Go through our tx ring and free mbufs for those 2917 * frames that have been sent. 2918 */ 2919 cons = sc_if->msk_cdata.msk_tx_cons; 2920 prog = 0; 2921 for (; cons != idx; MSK_INC(cons, MSK_TX_RING_CNT)) { 2922 if (sc_if->msk_cdata.msk_tx_cnt <= 0) 2923 break; 2924 prog++; 2925 cur_tx = &sc_if->msk_rdata.msk_tx_ring[cons]; 2926 control = le32toh(cur_tx->msk_control); 2927 sc_if->msk_cdata.msk_tx_cnt--; 2928 if ((control & EOP) == 0) 2929 continue; 2930 txd = &sc_if->msk_cdata.msk_txdesc[cons]; 2931 bus_dmamap_unload(sc_if->msk_cdata.msk_tx_tag, txd->tx_dmamap); 2932 2933 IFNET_STAT_INC(ifp, opackets, 1); 2934 KASSERT(txd->tx_m != NULL, ("%s: freeing NULL mbuf!", 2935 __func__)); 2936 m_freem(txd->tx_m); 2937 txd->tx_m = NULL; 2938 } 2939 2940 if (prog > 0) { 2941 sc_if->msk_cdata.msk_tx_cons = cons; 2942 if (!MSK_IS_OACTIVE(sc_if)) 2943 ifq_clr_oactive(&ifp->if_snd); 2944 if (sc_if->msk_cdata.msk_tx_cnt == 0) 2945 ifp->if_timer = 0; 2946 /* No need to sync LEs as we didn't update LEs. */ 2947 } 2948 } 2949 2950 static void 2951 msk_tick(void *xsc_if) 2952 { 2953 struct msk_if_softc *sc_if = xsc_if; 2954 struct ifnet *ifp = &sc_if->arpcom.ac_if; 2955 struct mii_data *mii; 2956 2957 lwkt_serialize_enter(ifp->if_serializer); 2958 2959 mii = device_get_softc(sc_if->msk_miibus); 2960 2961 mii_tick(mii); 2962 if (!sc_if->msk_link) 2963 msk_miibus_statchg(sc_if->msk_if_dev); 2964 callout_reset(&sc_if->msk_tick_ch, hz, msk_tick, sc_if); 2965 2966 lwkt_serialize_exit(ifp->if_serializer); 2967 } 2968 2969 static void 2970 msk_intr_phy(struct msk_if_softc *sc_if) 2971 { 2972 uint16_t status; 2973 2974 msk_phy_readreg(sc_if, PHY_ADDR_MARV, PHY_MARV_INT_STAT); 2975 status = msk_phy_readreg(sc_if, PHY_ADDR_MARV, PHY_MARV_INT_STAT); 2976 /* Handle FIFO Underrun/Overflow? */ 2977 if (status & PHY_M_IS_FIFO_ERROR) { 2978 device_printf(sc_if->msk_if_dev, 2979 "PHY FIFO underrun/overflow.\n"); 2980 } 2981 } 2982 2983 static void 2984 msk_intr_gmac(struct msk_if_softc *sc_if) 2985 { 2986 struct msk_softc *sc; 2987 uint8_t status; 2988 2989 sc = sc_if->msk_softc; 2990 status = CSR_READ_1(sc, MR_ADDR(sc_if->msk_port, GMAC_IRQ_SRC)); 2991 2992 /* GMAC Rx FIFO overrun. */ 2993 if ((status & GM_IS_RX_FF_OR) != 0) { 2994 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T), 2995 GMF_CLI_RX_FO); 2996 } 2997 /* GMAC Tx FIFO underrun. */ 2998 if ((status & GM_IS_TX_FF_UR) != 0) { 2999 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), 3000 GMF_CLI_TX_FU); 3001 device_printf(sc_if->msk_if_dev, "Tx FIFO underrun!\n"); 3002 /* 3003 * XXX 3004 * In case of Tx underrun, we may need to flush/reset 3005 * Tx MAC but that would also require resynchronization 3006 * with status LEs. Reintializing status LEs would 3007 * affect other port in dual MAC configuration so it 3008 * should be avoided as possible as we can. 3009 * Due to lack of documentation it's all vague guess but 3010 * it needs more investigation. 3011 */ 3012 } 3013 } 3014 3015 static void 3016 msk_handle_hwerr(struct msk_if_softc *sc_if, uint32_t status) 3017 { 3018 struct msk_softc *sc; 3019 3020 sc = sc_if->msk_softc; 3021 if ((status & Y2_IS_PAR_RD1) != 0) { 3022 device_printf(sc_if->msk_if_dev, 3023 "RAM buffer read parity error\n"); 3024 /* Clear IRQ. */ 3025 CSR_WRITE_2(sc, SELECT_RAM_BUFFER(sc_if->msk_port, B3_RI_CTRL), 3026 RI_CLR_RD_PERR); 3027 } 3028 if ((status & Y2_IS_PAR_WR1) != 0) { 3029 device_printf(sc_if->msk_if_dev, 3030 "RAM buffer write parity error\n"); 3031 /* Clear IRQ. */ 3032 CSR_WRITE_2(sc, SELECT_RAM_BUFFER(sc_if->msk_port, B3_RI_CTRL), 3033 RI_CLR_WR_PERR); 3034 } 3035 if ((status & Y2_IS_PAR_MAC1) != 0) { 3036 device_printf(sc_if->msk_if_dev, "Tx MAC parity error\n"); 3037 /* Clear IRQ. */ 3038 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), 3039 GMF_CLI_TX_PE); 3040 } 3041 if ((status & Y2_IS_PAR_RX1) != 0) { 3042 device_printf(sc_if->msk_if_dev, "Rx parity error\n"); 3043 /* Clear IRQ. */ 3044 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_rxq, Q_CSR), BMU_CLR_IRQ_PAR); 3045 } 3046 if ((status & (Y2_IS_TCP_TXS1 | Y2_IS_TCP_TXA1)) != 0) { 3047 device_printf(sc_if->msk_if_dev, "TCP segmentation error\n"); 3048 /* Clear IRQ. */ 3049 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), BMU_CLR_IRQ_TCP); 3050 } 3051 } 3052 3053 static void 3054 mskc_intr_hwerr(struct msk_softc *sc) 3055 { 3056 uint32_t status; 3057 uint32_t tlphead[4]; 3058 3059 status = CSR_READ_4(sc, B0_HWE_ISRC); 3060 /* Time Stamp timer overflow. */ 3061 if ((status & Y2_IS_TIST_OV) != 0) 3062 CSR_WRITE_1(sc, GMAC_TI_ST_CTRL, GMT_ST_CLR_IRQ); 3063 if ((status & Y2_IS_PCI_NEXP) != 0) { 3064 /* 3065 * PCI Express Error occured which is not described in PEX 3066 * spec. 3067 * This error is also mapped either to Master Abort( 3068 * Y2_IS_MST_ERR) or Target Abort (Y2_IS_IRQ_STAT) bit and 3069 * can only be cleared there. 3070 */ 3071 device_printf(sc->msk_dev, 3072 "PCI Express protocol violation error\n"); 3073 } 3074 3075 if ((status & (Y2_IS_MST_ERR | Y2_IS_IRQ_STAT)) != 0) { 3076 uint16_t v16; 3077 3078 if ((status & Y2_IS_MST_ERR) != 0) 3079 device_printf(sc->msk_dev, 3080 "unexpected IRQ Status error\n"); 3081 else 3082 device_printf(sc->msk_dev, 3083 "unexpected IRQ Master error\n"); 3084 /* Reset all bits in the PCI status register. */ 3085 v16 = pci_read_config(sc->msk_dev, PCIR_STATUS, 2); 3086 CSR_WRITE_1(sc, B2_TST_CTRL1, TST_CFG_WRITE_ON); 3087 pci_write_config(sc->msk_dev, PCIR_STATUS, v16 | 3088 PCIM_STATUS_PERR | PCIM_STATUS_SERR | PCIM_STATUS_RMABORT | 3089 PCIM_STATUS_RTABORT | PCIM_STATUS_PERRREPORT, 2); 3090 CSR_WRITE_1(sc, B2_TST_CTRL1, TST_CFG_WRITE_OFF); 3091 } 3092 3093 /* Check for PCI Express Uncorrectable Error. */ 3094 if ((status & Y2_IS_PCI_EXP) != 0) { 3095 uint32_t v32; 3096 3097 /* 3098 * On PCI Express bus bridges are called root complexes (RC). 3099 * PCI Express errors are recognized by the root complex too, 3100 * which requests the system to handle the problem. After 3101 * error occurence it may be that no access to the adapter 3102 * may be performed any longer. 3103 */ 3104 3105 v32 = CSR_PCI_READ_4(sc, PEX_UNC_ERR_STAT); 3106 if ((v32 & PEX_UNSUP_REQ) != 0) { 3107 /* Ignore unsupported request error. */ 3108 if (bootverbose) { 3109 device_printf(sc->msk_dev, 3110 "Uncorrectable PCI Express error\n"); 3111 } 3112 } 3113 if ((v32 & (PEX_FATAL_ERRORS | PEX_POIS_TLP)) != 0) { 3114 int i; 3115 3116 /* Get TLP header form Log Registers. */ 3117 for (i = 0; i < 4; i++) 3118 tlphead[i] = CSR_PCI_READ_4(sc, 3119 PEX_HEADER_LOG + i * 4); 3120 /* Check for vendor defined broadcast message. */ 3121 if (!(tlphead[0] == 0x73004001 && tlphead[1] == 0x7f)) { 3122 sc->msk_intrhwemask &= ~Y2_IS_PCI_EXP; 3123 CSR_WRITE_4(sc, B0_HWE_IMSK, 3124 sc->msk_intrhwemask); 3125 CSR_READ_4(sc, B0_HWE_IMSK); 3126 } 3127 } 3128 /* Clear the interrupt. */ 3129 CSR_WRITE_1(sc, B2_TST_CTRL1, TST_CFG_WRITE_ON); 3130 CSR_PCI_WRITE_4(sc, PEX_UNC_ERR_STAT, 0xffffffff); 3131 CSR_WRITE_1(sc, B2_TST_CTRL1, TST_CFG_WRITE_OFF); 3132 } 3133 3134 if ((status & Y2_HWE_L1_MASK) != 0 && sc->msk_if[MSK_PORT_A] != NULL) 3135 msk_handle_hwerr(sc->msk_if[MSK_PORT_A], status); 3136 if ((status & Y2_HWE_L2_MASK) != 0 && sc->msk_if[MSK_PORT_B] != NULL) 3137 msk_handle_hwerr(sc->msk_if[MSK_PORT_B], status >> 8); 3138 } 3139 3140 static __inline void 3141 msk_rxput(struct msk_if_softc *sc_if) 3142 { 3143 struct msk_softc *sc; 3144 3145 sc = sc_if->msk_softc; 3146 #ifdef MSK_JUMBO 3147 if (sc_if->msk_framesize > (MCLBYTES - ETHER_HDR_LEN)) { 3148 bus_dmamap_sync( 3149 sc_if->msk_cdata.msk_jumbo_rx_ring_tag, 3150 sc_if->msk_cdata.msk_jumbo_rx_ring_map, 3151 BUS_DMASYNC_PREWRITE); 3152 } 3153 #endif 3154 CSR_WRITE_2(sc, Y2_PREF_Q_ADDR(sc_if->msk_rxq, 3155 PREF_UNIT_PUT_IDX_REG), sc_if->msk_cdata.msk_rx_prod); 3156 } 3157 3158 static int 3159 mskc_handle_events(struct msk_softc *sc) 3160 { 3161 struct msk_if_softc *sc_if; 3162 int rxput[2]; 3163 struct msk_stat_desc *sd; 3164 uint32_t control, status; 3165 int cons, idx, len, port, rxprog; 3166 3167 idx = CSR_READ_2(sc, STAT_PUT_IDX); 3168 if (idx == sc->msk_stat_cons) 3169 return (0); 3170 3171 rxput[MSK_PORT_A] = rxput[MSK_PORT_B] = 0; 3172 3173 rxprog = 0; 3174 for (cons = sc->msk_stat_cons; cons != idx;) { 3175 sd = &sc->msk_stat_ring[cons]; 3176 control = le32toh(sd->msk_control); 3177 if ((control & HW_OWNER) == 0) 3178 break; 3179 /* 3180 * Marvell's FreeBSD driver updates status LE after clearing 3181 * HW_OWNER. However we don't have a way to sync single LE 3182 * with bus_dma(9) API. bus_dma(9) provides a way to sync 3183 * an entire DMA map. So don't sync LE until we have a better 3184 * way to sync LEs. 3185 */ 3186 control &= ~HW_OWNER; 3187 sd->msk_control = htole32(control); 3188 status = le32toh(sd->msk_status); 3189 len = control & STLE_LEN_MASK; 3190 port = (control >> 16) & 0x01; 3191 sc_if = sc->msk_if[port]; 3192 if (sc_if == NULL) { 3193 device_printf(sc->msk_dev, "invalid port opcode " 3194 "0x%08x\n", control & STLE_OP_MASK); 3195 continue; 3196 } 3197 3198 switch (control & STLE_OP_MASK) { 3199 case OP_RXVLAN: 3200 sc_if->msk_vtag = ntohs(len); 3201 break; 3202 case OP_RXCHKSVLAN: 3203 sc_if->msk_vtag = ntohs(len); 3204 break; 3205 case OP_RXSTAT: 3206 if ((sc_if->msk_ifp->if_flags & IFF_RUNNING) == 0) 3207 break; 3208 #ifdef MSK_JUMBO 3209 if (sc_if->msk_framesize > (MCLBYTES - ETHER_HDR_LEN)) 3210 msk_jumbo_rxeof(sc_if, status, len); 3211 else 3212 #endif 3213 msk_rxeof(sc_if, status, len); 3214 rxprog++; 3215 /* 3216 * Because there is no way to sync single Rx LE 3217 * put the DMA sync operation off until the end of 3218 * event processing. 3219 */ 3220 rxput[port]++; 3221 /* Update prefetch unit if we've passed water mark. */ 3222 if (rxput[port] >= sc_if->msk_cdata.msk_rx_putwm) { 3223 msk_rxput(sc_if); 3224 rxput[port] = 0; 3225 } 3226 break; 3227 case OP_TXINDEXLE: 3228 if (sc->msk_if[MSK_PORT_A] != NULL) { 3229 msk_txeof(sc->msk_if[MSK_PORT_A], 3230 status & STLE_TXA1_MSKL); 3231 } 3232 if (sc->msk_if[MSK_PORT_B] != NULL) { 3233 msk_txeof(sc->msk_if[MSK_PORT_B], 3234 ((status & STLE_TXA2_MSKL) >> 3235 STLE_TXA2_SHIFTL) | 3236 ((len & STLE_TXA2_MSKH) << 3237 STLE_TXA2_SHIFTH)); 3238 } 3239 break; 3240 default: 3241 device_printf(sc->msk_dev, "unhandled opcode 0x%08x\n", 3242 control & STLE_OP_MASK); 3243 break; 3244 } 3245 MSK_INC(cons, MSK_STAT_RING_CNT); 3246 if (rxprog > sc->msk_process_limit) 3247 break; 3248 } 3249 3250 sc->msk_stat_cons = cons; 3251 /* XXX We should sync status LEs here. See above notes. */ 3252 3253 if (rxput[MSK_PORT_A] > 0) 3254 msk_rxput(sc->msk_if[MSK_PORT_A]); 3255 if (rxput[MSK_PORT_B] > 0) 3256 msk_rxput(sc->msk_if[MSK_PORT_B]); 3257 3258 return (sc->msk_stat_cons != CSR_READ_2(sc, STAT_PUT_IDX)); 3259 } 3260 3261 /* Legacy interrupt handler for shared interrupt. */ 3262 static void 3263 mskc_intr(void *xsc) 3264 { 3265 struct msk_softc *sc; 3266 struct msk_if_softc *sc_if0, *sc_if1; 3267 struct ifnet *ifp0, *ifp1; 3268 uint32_t status; 3269 3270 sc = xsc; 3271 ASSERT_SERIALIZED(&sc->msk_serializer); 3272 3273 /* Reading B0_Y2_SP_ISRC2 masks further interrupts. */ 3274 status = CSR_READ_4(sc, B0_Y2_SP_ISRC2); 3275 if (status == 0 || status == 0xffffffff || sc->msk_suspended != 0 || 3276 (status & sc->msk_intrmask) == 0) { 3277 CSR_WRITE_4(sc, B0_Y2_SP_ICR, 2); 3278 return; 3279 } 3280 3281 sc_if0 = sc->msk_if[MSK_PORT_A]; 3282 sc_if1 = sc->msk_if[MSK_PORT_B]; 3283 ifp0 = ifp1 = NULL; 3284 if (sc_if0 != NULL) 3285 ifp0 = sc_if0->msk_ifp; 3286 if (sc_if1 != NULL) 3287 ifp1 = sc_if1->msk_ifp; 3288 3289 if ((status & Y2_IS_IRQ_PHY1) != 0 && sc_if0 != NULL) 3290 msk_intr_phy(sc_if0); 3291 if ((status & Y2_IS_IRQ_PHY2) != 0 && sc_if1 != NULL) 3292 msk_intr_phy(sc_if1); 3293 if ((status & Y2_IS_IRQ_MAC1) != 0 && sc_if0 != NULL) 3294 msk_intr_gmac(sc_if0); 3295 if ((status & Y2_IS_IRQ_MAC2) != 0 && sc_if1 != NULL) 3296 msk_intr_gmac(sc_if1); 3297 if ((status & (Y2_IS_CHK_RX1 | Y2_IS_CHK_RX2)) != 0) { 3298 device_printf(sc->msk_dev, "Rx descriptor error\n"); 3299 sc->msk_intrmask &= ~(Y2_IS_CHK_RX1 | Y2_IS_CHK_RX2); 3300 CSR_WRITE_4(sc, B0_IMSK, sc->msk_intrmask); 3301 CSR_READ_4(sc, B0_IMSK); 3302 } 3303 if ((status & (Y2_IS_CHK_TXA1 | Y2_IS_CHK_TXA2)) != 0) { 3304 device_printf(sc->msk_dev, "Tx descriptor error\n"); 3305 sc->msk_intrmask &= ~(Y2_IS_CHK_TXA1 | Y2_IS_CHK_TXA2); 3306 CSR_WRITE_4(sc, B0_IMSK, sc->msk_intrmask); 3307 CSR_READ_4(sc, B0_IMSK); 3308 } 3309 if ((status & Y2_IS_HW_ERR) != 0) 3310 mskc_intr_hwerr(sc); 3311 3312 while (mskc_handle_events(sc) != 0) 3313 ; 3314 if ((status & Y2_IS_STAT_BMU) != 0) 3315 CSR_WRITE_4(sc, STAT_CTRL, SC_STAT_CLR_IRQ); 3316 3317 /* Reenable interrupts. */ 3318 CSR_WRITE_4(sc, B0_Y2_SP_ICR, 2); 3319 3320 if (ifp0 != NULL && (ifp0->if_flags & IFF_RUNNING) != 0 && 3321 !ifq_is_empty(&ifp0->if_snd)) 3322 if_devstart(ifp0); 3323 if (ifp1 != NULL && (ifp1->if_flags & IFF_RUNNING) != 0 && 3324 !ifq_is_empty(&ifp1->if_snd)) 3325 if_devstart(ifp1); 3326 } 3327 3328 static void 3329 msk_set_tx_stfwd(struct msk_if_softc *sc_if) 3330 { 3331 struct msk_softc *sc = sc_if->msk_softc; 3332 struct ifnet *ifp = sc_if->msk_ifp; 3333 3334 if ((sc->msk_hw_id == CHIP_ID_YUKON_EX && 3335 sc->msk_hw_rev != CHIP_REV_YU_EX_A0) || 3336 sc->msk_hw_id >= CHIP_ID_YUKON_SUPR) { 3337 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), 3338 TX_STFW_ENA); 3339 } else { 3340 if (ifp->if_mtu > ETHERMTU) { 3341 /* Set Tx GMAC FIFO Almost Empty Threshold. */ 3342 CSR_WRITE_4(sc, 3343 MR_ADDR(sc_if->msk_port, TX_GMF_AE_THR), 3344 MSK_ECU_JUMBO_WM << 16 | MSK_ECU_AE_THR); 3345 /* Disable Store & Forward mode for Tx. */ 3346 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), 3347 TX_STFW_DIS); 3348 } else { 3349 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), 3350 TX_STFW_ENA); 3351 } 3352 } 3353 } 3354 3355 static void 3356 msk_init(void *xsc) 3357 { 3358 struct msk_if_softc *sc_if = xsc; 3359 struct msk_softc *sc = sc_if->msk_softc; 3360 struct ifnet *ifp = sc_if->msk_ifp; 3361 struct mii_data *mii; 3362 uint16_t eaddr[ETHER_ADDR_LEN / 2]; 3363 uint16_t gmac; 3364 uint32_t reg; 3365 int error, i; 3366 3367 ASSERT_SERIALIZED(ifp->if_serializer); 3368 3369 mii = device_get_softc(sc_if->msk_miibus); 3370 3371 error = 0; 3372 /* Cancel pending I/O and free all Rx/Tx buffers. */ 3373 msk_stop(sc_if); 3374 3375 sc_if->msk_framesize = ifp->if_mtu + ETHER_HDR_LEN + EVL_ENCAPLEN; 3376 if (sc_if->msk_framesize > MSK_MAX_FRAMELEN && 3377 sc_if->msk_softc->msk_hw_id == CHIP_ID_YUKON_EC_U) { 3378 /* 3379 * In Yukon EC Ultra, TSO & checksum offload is not 3380 * supported for jumbo frame. 3381 */ 3382 ifp->if_hwassist &= ~MSK_CSUM_FEATURES; 3383 ifp->if_capenable &= ~IFCAP_TXCSUM; 3384 } 3385 3386 /* GMAC Control reset. */ 3387 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, GMAC_CTRL), GMC_RST_SET); 3388 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, GMAC_CTRL), GMC_RST_CLR); 3389 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, GMAC_CTRL), GMC_F_LOOPB_OFF); 3390 if (sc->msk_hw_id == CHIP_ID_YUKON_EX || 3391 sc->msk_hw_id == CHIP_ID_YUKON_SUPR) { 3392 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, GMAC_CTRL), 3393 GMC_BYP_MACSECRX_ON | GMC_BYP_MACSECTX_ON | 3394 GMC_BYP_RETR_ON); 3395 } 3396 3397 /* 3398 * Initialize GMAC first such that speed/duplex/flow-control 3399 * parameters are renegotiated when interface is brought up. 3400 */ 3401 GMAC_WRITE_2(sc, sc_if->msk_port, GM_GP_CTRL, 0); 3402 3403 /* Dummy read the Interrupt Source Register. */ 3404 CSR_READ_1(sc, MR_ADDR(sc_if->msk_port, GMAC_IRQ_SRC)); 3405 3406 /* Set MIB Clear Counter Mode. */ 3407 gmac = GMAC_READ_2(sc, sc_if->msk_port, GM_PHY_ADDR); 3408 GMAC_WRITE_2(sc, sc_if->msk_port, GM_PHY_ADDR, gmac | GM_PAR_MIB_CLR); 3409 /* Read all MIB Counters with Clear Mode set. */ 3410 for (i = 0; i < GM_MIB_CNT_SIZE; i++) 3411 GMAC_READ_2(sc, sc_if->msk_port, GM_MIB_CNT_BASE + 8 * i); 3412 /* Clear MIB Clear Counter Mode. */ 3413 gmac &= ~GM_PAR_MIB_CLR; 3414 GMAC_WRITE_2(sc, sc_if->msk_port, GM_PHY_ADDR, gmac); 3415 3416 /* Disable FCS. */ 3417 GMAC_WRITE_2(sc, sc_if->msk_port, GM_RX_CTRL, GM_RXCR_CRC_DIS); 3418 3419 /* Setup Transmit Control Register. */ 3420 GMAC_WRITE_2(sc, sc_if->msk_port, GM_TX_CTRL, TX_COL_THR(TX_COL_DEF)); 3421 3422 /* Setup Transmit Flow Control Register. */ 3423 GMAC_WRITE_2(sc, sc_if->msk_port, GM_TX_FLOW_CTRL, 0xffff); 3424 3425 /* Setup Transmit Parameter Register. */ 3426 GMAC_WRITE_2(sc, sc_if->msk_port, GM_TX_PARAM, 3427 TX_JAM_LEN_VAL(TX_JAM_LEN_DEF) | TX_JAM_IPG_VAL(TX_JAM_IPG_DEF) | 3428 TX_IPG_JAM_DATA(TX_IPG_JAM_DEF) | TX_BACK_OFF_LIM(TX_BOF_LIM_DEF)); 3429 3430 gmac = DATA_BLIND_VAL(DATA_BLIND_DEF) | 3431 GM_SMOD_VLAN_ENA | IPG_DATA_VAL(IPG_DATA_DEF); 3432 3433 if (sc_if->msk_framesize > MSK_MAX_FRAMELEN) 3434 gmac |= GM_SMOD_JUMBO_ENA; 3435 GMAC_WRITE_2(sc, sc_if->msk_port, GM_SERIAL_MODE, gmac); 3436 3437 /* Set station address. */ 3438 bcopy(IF_LLADDR(ifp), eaddr, ETHER_ADDR_LEN); 3439 for (i = 0; i < ETHER_ADDR_LEN /2; i++) 3440 GMAC_WRITE_2(sc, sc_if->msk_port, GM_SRC_ADDR_1L + i * 4, 3441 eaddr[i]); 3442 for (i = 0; i < ETHER_ADDR_LEN /2; i++) 3443 GMAC_WRITE_2(sc, sc_if->msk_port, GM_SRC_ADDR_2L + i * 4, 3444 eaddr[i]); 3445 3446 /* Disable interrupts for counter overflows. */ 3447 GMAC_WRITE_2(sc, sc_if->msk_port, GM_TX_IRQ_MSK, 0); 3448 GMAC_WRITE_2(sc, sc_if->msk_port, GM_RX_IRQ_MSK, 0); 3449 GMAC_WRITE_2(sc, sc_if->msk_port, GM_TR_IRQ_MSK, 0); 3450 3451 /* Configure Rx MAC FIFO. */ 3452 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T), GMF_RST_SET); 3453 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T), GMF_RST_CLR); 3454 reg = GMF_OPER_ON | GMF_RX_F_FL_ON; 3455 if (sc->msk_hw_id == CHIP_ID_YUKON_FE_P || 3456 sc->msk_hw_id == CHIP_ID_YUKON_EX) 3457 reg |= GMF_RX_OVER_ON; 3458 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T), reg); 3459 3460 /* Set receive filter. */ 3461 msk_rxfilter(sc_if); 3462 3463 if (sc->msk_hw_id == CHIP_ID_YUKON_XL) { 3464 /* Clear flush mask - HW bug. */ 3465 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK), 0); 3466 } else { 3467 /* Flush Rx MAC FIFO on any flow control or error. */ 3468 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_MSK), 3469 GMR_FS_ANY_ERR); 3470 } 3471 3472 /* 3473 * Set Rx FIFO flush threshold to 64 bytes 1 FIFO word 3474 * due to hardware hang on receipt of pause frames. 3475 */ 3476 reg = RX_GMF_FL_THR_DEF + 1; 3477 /* Another magic for Yukon FE+ - From Linux. */ 3478 if (sc->msk_hw_id == CHIP_ID_YUKON_FE_P && 3479 sc->msk_hw_rev == CHIP_REV_YU_FE_P_A0) 3480 reg = 0x178; 3481 CSR_WRITE_2(sc, MR_ADDR(sc_if->msk_port, RX_GMF_FL_THR), reg); 3482 3483 3484 /* Configure Tx MAC FIFO. */ 3485 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), GMF_RST_SET); 3486 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), GMF_RST_CLR); 3487 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), GMF_OPER_ON); 3488 3489 /* Configure hardware VLAN tag insertion/stripping. */ 3490 msk_setvlan(sc_if, ifp); 3491 3492 if ((sc_if->msk_flags & MSK_FLAG_RAMBUF) == 0) { 3493 /* Set Rx Pause threshould. */ 3494 CSR_WRITE_2(sc, MR_ADDR(sc_if->msk_port, RX_GMF_LP_THR), 3495 MSK_ECU_LLPP); 3496 CSR_WRITE_2(sc, MR_ADDR(sc_if->msk_port, RX_GMF_UP_THR), 3497 MSK_ECU_ULPP); 3498 /* Configure store-and-forward for Tx. */ 3499 msk_set_tx_stfwd(sc_if); 3500 } 3501 3502 if (sc->msk_hw_id == CHIP_ID_YUKON_FE_P && 3503 sc->msk_hw_rev == CHIP_REV_YU_FE_P_A0) { 3504 /* Disable dynamic watermark - from Linux. */ 3505 reg = CSR_READ_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_EA)); 3506 reg &= ~0x03; 3507 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_EA), reg); 3508 } 3509 3510 /* 3511 * Disable Force Sync bit and Alloc bit in Tx RAM interface 3512 * arbiter as we don't use Sync Tx queue. 3513 */ 3514 CSR_WRITE_1(sc, MR_ADDR(sc_if->msk_port, TXA_CTRL), 3515 TXA_DIS_FSYNC | TXA_DIS_ALLOC | TXA_STOP_RC); 3516 /* Enable the RAM Interface Arbiter. */ 3517 CSR_WRITE_1(sc, MR_ADDR(sc_if->msk_port, TXA_CTRL), TXA_ENA_ARB); 3518 3519 /* Setup RAM buffer. */ 3520 msk_set_rambuffer(sc_if); 3521 3522 /* Disable Tx sync Queue. */ 3523 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_txsq, RB_CTRL), RB_RST_SET); 3524 3525 /* Setup Tx Queue Bus Memory Interface. */ 3526 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), BMU_CLR_RESET); 3527 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), BMU_OPER_INIT); 3528 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), BMU_FIFO_OP_ON); 3529 CSR_WRITE_2(sc, Q_ADDR(sc_if->msk_txq, Q_WM), MSK_BMU_TX_WM); 3530 switch (sc->msk_hw_id) { 3531 case CHIP_ID_YUKON_EC_U: 3532 if (sc->msk_hw_rev == CHIP_REV_YU_EC_U_A0) { 3533 /* Fix for Yukon-EC Ultra: set BMU FIFO level */ 3534 CSR_WRITE_2(sc, Q_ADDR(sc_if->msk_txq, Q_AL), 3535 MSK_ECU_TXFF_LEV); 3536 } 3537 break; 3538 case CHIP_ID_YUKON_EX: 3539 /* 3540 * Yukon Extreme seems to have silicon bug for 3541 * automatic Tx checksum calculation capability. 3542 */ 3543 if (sc->msk_hw_rev == CHIP_REV_YU_EX_B0) { 3544 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_F), 3545 F_TX_CHK_AUTO_OFF); 3546 } 3547 break; 3548 } 3549 3550 /* Setup Rx Queue Bus Memory Interface. */ 3551 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_rxq, Q_CSR), BMU_CLR_RESET); 3552 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_rxq, Q_CSR), BMU_OPER_INIT); 3553 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_rxq, Q_CSR), BMU_FIFO_OP_ON); 3554 CSR_WRITE_2(sc, Q_ADDR(sc_if->msk_rxq, Q_WM), MSK_BMU_RX_WM); 3555 if (sc->msk_hw_id == CHIP_ID_YUKON_EC_U && 3556 sc->msk_hw_rev >= CHIP_REV_YU_EC_U_A1) { 3557 /* MAC Rx RAM Read is controlled by hardware. */ 3558 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_rxq, Q_F), F_M_RX_RAM_DIS); 3559 } 3560 3561 msk_set_prefetch(sc, sc_if->msk_txq, 3562 sc_if->msk_rdata.msk_tx_ring_paddr, MSK_TX_RING_CNT - 1); 3563 msk_init_tx_ring(sc_if); 3564 3565 /* Disable Rx checksum offload and RSS hash. */ 3566 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_rxq, Q_CSR), 3567 BMU_DIS_RX_CHKSUM | BMU_DIS_RX_RSS_HASH); 3568 #ifdef MSK_JUMBO 3569 if (sc_if->msk_framesize > (MCLBYTES - ETHER_HDR_LEN)) { 3570 msk_set_prefetch(sc, sc_if->msk_rxq, 3571 sc_if->msk_rdata.msk_jumbo_rx_ring_paddr, 3572 MSK_JUMBO_RX_RING_CNT - 1); 3573 error = msk_init_jumbo_rx_ring(sc_if); 3574 } else 3575 #endif 3576 { 3577 msk_set_prefetch(sc, sc_if->msk_rxq, 3578 sc_if->msk_rdata.msk_rx_ring_paddr, 3579 MSK_RX_RING_CNT - 1); 3580 error = msk_init_rx_ring(sc_if); 3581 } 3582 if (error != 0) { 3583 device_printf(sc_if->msk_if_dev, 3584 "initialization failed: no memory for Rx buffers\n"); 3585 msk_stop(sc_if); 3586 return; 3587 } 3588 if (sc->msk_hw_id == CHIP_ID_YUKON_EX || 3589 sc->msk_hw_id == CHIP_ID_YUKON_SUPR) { 3590 /* Disable flushing of non-ASF packets. */ 3591 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T), 3592 GMF_RX_MACSEC_FLUSH_OFF); 3593 } 3594 3595 /* Configure interrupt handling. */ 3596 if (sc_if->msk_port == MSK_PORT_A) { 3597 sc->msk_intrmask |= Y2_IS_PORT_A; 3598 sc->msk_intrhwemask |= Y2_HWE_L1_MASK; 3599 } else { 3600 sc->msk_intrmask |= Y2_IS_PORT_B; 3601 sc->msk_intrhwemask |= Y2_HWE_L2_MASK; 3602 } 3603 CSR_WRITE_4(sc, B0_HWE_IMSK, sc->msk_intrhwemask); 3604 CSR_READ_4(sc, B0_HWE_IMSK); 3605 CSR_WRITE_4(sc, B0_IMSK, sc->msk_intrmask); 3606 CSR_READ_4(sc, B0_IMSK); 3607 3608 sc_if->msk_link = 0; 3609 mii_mediachg(mii); 3610 3611 mskc_set_imtimer(sc); 3612 3613 ifp->if_flags |= IFF_RUNNING; 3614 ifq_clr_oactive(&ifp->if_snd); 3615 3616 callout_reset(&sc_if->msk_tick_ch, hz, msk_tick, sc_if); 3617 } 3618 3619 static void 3620 msk_set_rambuffer(struct msk_if_softc *sc_if) 3621 { 3622 struct msk_softc *sc; 3623 int ltpp, utpp; 3624 3625 if ((sc_if->msk_flags & MSK_FLAG_RAMBUF) == 0) 3626 return; 3627 3628 sc = sc_if->msk_softc; 3629 3630 /* Setup Rx Queue. */ 3631 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_rxq, RB_CTRL), RB_RST_CLR); 3632 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_rxq, RB_START), 3633 sc->msk_rxqstart[sc_if->msk_port] / 8); 3634 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_rxq, RB_END), 3635 sc->msk_rxqend[sc_if->msk_port] / 8); 3636 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_rxq, RB_WP), 3637 sc->msk_rxqstart[sc_if->msk_port] / 8); 3638 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_rxq, RB_RP), 3639 sc->msk_rxqstart[sc_if->msk_port] / 8); 3640 3641 utpp = (sc->msk_rxqend[sc_if->msk_port] + 1 - 3642 sc->msk_rxqstart[sc_if->msk_port] - MSK_RB_ULPP) / 8; 3643 ltpp = (sc->msk_rxqend[sc_if->msk_port] + 1 - 3644 sc->msk_rxqstart[sc_if->msk_port] - MSK_RB_LLPP_B) / 8; 3645 if (sc->msk_rxqsize < MSK_MIN_RXQ_SIZE) 3646 ltpp += (MSK_RB_LLPP_B - MSK_RB_LLPP_S) / 8; 3647 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_rxq, RB_RX_UTPP), utpp); 3648 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_rxq, RB_RX_LTPP), ltpp); 3649 /* Set Rx priority(RB_RX_UTHP/RB_RX_LTHP) thresholds? */ 3650 3651 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_rxq, RB_CTRL), RB_ENA_OP_MD); 3652 CSR_READ_1(sc, RB_ADDR(sc_if->msk_rxq, RB_CTRL)); 3653 3654 /* Setup Tx Queue. */ 3655 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_txq, RB_CTRL), RB_RST_CLR); 3656 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_txq, RB_START), 3657 sc->msk_txqstart[sc_if->msk_port] / 8); 3658 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_txq, RB_END), 3659 sc->msk_txqend[sc_if->msk_port] / 8); 3660 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_txq, RB_WP), 3661 sc->msk_txqstart[sc_if->msk_port] / 8); 3662 CSR_WRITE_4(sc, RB_ADDR(sc_if->msk_txq, RB_RP), 3663 sc->msk_txqstart[sc_if->msk_port] / 8); 3664 /* Enable Store & Forward for Tx side. */ 3665 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_txq, RB_CTRL), RB_ENA_STFWD); 3666 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_txq, RB_CTRL), RB_ENA_OP_MD); 3667 CSR_READ_1(sc, RB_ADDR(sc_if->msk_txq, RB_CTRL)); 3668 } 3669 3670 static void 3671 msk_set_prefetch(struct msk_softc *sc, int qaddr, bus_addr_t addr, 3672 uint32_t count) 3673 { 3674 3675 /* Reset the prefetch unit. */ 3676 CSR_WRITE_4(sc, Y2_PREF_Q_ADDR(qaddr, PREF_UNIT_CTRL_REG), 3677 PREF_UNIT_RST_SET); 3678 CSR_WRITE_4(sc, Y2_PREF_Q_ADDR(qaddr, PREF_UNIT_CTRL_REG), 3679 PREF_UNIT_RST_CLR); 3680 /* Set LE base address. */ 3681 CSR_WRITE_4(sc, Y2_PREF_Q_ADDR(qaddr, PREF_UNIT_ADDR_LOW_REG), 3682 MSK_ADDR_LO(addr)); 3683 CSR_WRITE_4(sc, Y2_PREF_Q_ADDR(qaddr, PREF_UNIT_ADDR_HI_REG), 3684 MSK_ADDR_HI(addr)); 3685 /* Set the list last index. */ 3686 CSR_WRITE_2(sc, Y2_PREF_Q_ADDR(qaddr, PREF_UNIT_LAST_IDX_REG), 3687 count); 3688 /* Turn on prefetch unit. */ 3689 CSR_WRITE_4(sc, Y2_PREF_Q_ADDR(qaddr, PREF_UNIT_CTRL_REG), 3690 PREF_UNIT_OP_ON); 3691 /* Dummy read to ensure write. */ 3692 CSR_READ_4(sc, Y2_PREF_Q_ADDR(qaddr, PREF_UNIT_CTRL_REG)); 3693 } 3694 3695 static void 3696 msk_stop(struct msk_if_softc *sc_if) 3697 { 3698 struct msk_softc *sc = sc_if->msk_softc; 3699 struct ifnet *ifp = sc_if->msk_ifp; 3700 struct msk_txdesc *txd; 3701 struct msk_rxdesc *rxd; 3702 #ifdef MSK_JUMBO 3703 struct msk_rxdesc *jrxd; 3704 #endif 3705 uint32_t val; 3706 int i; 3707 3708 ASSERT_SERIALIZED(ifp->if_serializer); 3709 3710 callout_stop(&sc_if->msk_tick_ch); 3711 ifp->if_timer = 0; 3712 3713 /* Disable interrupts. */ 3714 if (sc_if->msk_port == MSK_PORT_A) { 3715 sc->msk_intrmask &= ~Y2_IS_PORT_A; 3716 sc->msk_intrhwemask &= ~Y2_HWE_L1_MASK; 3717 } else { 3718 sc->msk_intrmask &= ~Y2_IS_PORT_B; 3719 sc->msk_intrhwemask &= ~Y2_HWE_L2_MASK; 3720 } 3721 CSR_WRITE_4(sc, B0_HWE_IMSK, sc->msk_intrhwemask); 3722 CSR_READ_4(sc, B0_HWE_IMSK); 3723 CSR_WRITE_4(sc, B0_IMSK, sc->msk_intrmask); 3724 CSR_READ_4(sc, B0_IMSK); 3725 3726 /* Disable Tx/Rx MAC. */ 3727 val = GMAC_READ_2(sc, sc_if->msk_port, GM_GP_CTRL); 3728 val &= ~(GM_GPCR_RX_ENA | GM_GPCR_TX_ENA); 3729 GMAC_WRITE_2(sc, sc_if->msk_port, GM_GP_CTRL, val); 3730 /* Read again to ensure writing. */ 3731 GMAC_READ_2(sc, sc_if->msk_port, GM_GP_CTRL); 3732 3733 /* Stop Tx BMU. */ 3734 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), BMU_STOP); 3735 val = CSR_READ_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR)); 3736 for (i = 0; i < MSK_TIMEOUT; i++) { 3737 if ((val & (BMU_STOP | BMU_IDLE)) == 0) { 3738 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), 3739 BMU_STOP); 3740 val = CSR_READ_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR)); 3741 } else 3742 break; 3743 DELAY(1); 3744 } 3745 if (i == MSK_TIMEOUT) 3746 device_printf(sc_if->msk_if_dev, "Tx BMU stop failed\n"); 3747 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_txq, RB_CTRL), 3748 RB_RST_SET | RB_DIS_OP_MD); 3749 3750 /* Disable all GMAC interrupt. */ 3751 CSR_WRITE_1(sc, MR_ADDR(sc_if->msk_port, GMAC_IRQ_MSK), 0); 3752 /* Disable PHY interrupt. */ 3753 msk_phy_writereg(sc_if, PHY_ADDR_MARV, PHY_MARV_INT_MASK, 0); 3754 3755 /* Disable the RAM Interface Arbiter. */ 3756 CSR_WRITE_1(sc, MR_ADDR(sc_if->msk_port, TXA_CTRL), TXA_DIS_ARB); 3757 3758 /* Reset the PCI FIFO of the async Tx queue */ 3759 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_txq, Q_CSR), 3760 BMU_RST_SET | BMU_FIFO_RST); 3761 3762 /* Reset the Tx prefetch units. */ 3763 CSR_WRITE_4(sc, Y2_PREF_Q_ADDR(sc_if->msk_txq, PREF_UNIT_CTRL_REG), 3764 PREF_UNIT_RST_SET); 3765 3766 /* Reset the RAM Buffer async Tx queue. */ 3767 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_txq, RB_CTRL), RB_RST_SET); 3768 3769 /* Reset Tx MAC FIFO. */ 3770 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, TX_GMF_CTRL_T), GMF_RST_SET); 3771 /* Set Pause Off. */ 3772 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, GMAC_CTRL), GMC_PAUSE_OFF); 3773 3774 /* 3775 * The Rx Stop command will not work for Yukon-2 if the BMU does not 3776 * reach the end of packet and since we can't make sure that we have 3777 * incoming data, we must reset the BMU while it is not during a DMA 3778 * transfer. Since it is possible that the Rx path is still active, 3779 * the Rx RAM buffer will be stopped first, so any possible incoming 3780 * data will not trigger a DMA. After the RAM buffer is stopped, the 3781 * BMU is polled until any DMA in progress is ended and only then it 3782 * will be reset. 3783 */ 3784 3785 /* Disable the RAM Buffer receive queue. */ 3786 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_rxq, RB_CTRL), RB_DIS_OP_MD); 3787 for (i = 0; i < MSK_TIMEOUT; i++) { 3788 if (CSR_READ_1(sc, RB_ADDR(sc_if->msk_rxq, Q_RSL)) == 3789 CSR_READ_1(sc, RB_ADDR(sc_if->msk_rxq, Q_RL))) 3790 break; 3791 DELAY(1); 3792 } 3793 if (i == MSK_TIMEOUT) 3794 device_printf(sc_if->msk_if_dev, "Rx BMU stop failed\n"); 3795 CSR_WRITE_4(sc, Q_ADDR(sc_if->msk_rxq, Q_CSR), 3796 BMU_RST_SET | BMU_FIFO_RST); 3797 /* Reset the Rx prefetch unit. */ 3798 CSR_WRITE_4(sc, Y2_PREF_Q_ADDR(sc_if->msk_rxq, PREF_UNIT_CTRL_REG), 3799 PREF_UNIT_RST_SET); 3800 /* Reset the RAM Buffer receive queue. */ 3801 CSR_WRITE_1(sc, RB_ADDR(sc_if->msk_rxq, RB_CTRL), RB_RST_SET); 3802 /* Reset Rx MAC FIFO. */ 3803 CSR_WRITE_4(sc, MR_ADDR(sc_if->msk_port, RX_GMF_CTRL_T), GMF_RST_SET); 3804 3805 /* Free Rx and Tx mbufs still in the queues. */ 3806 for (i = 0; i < MSK_RX_RING_CNT; i++) { 3807 rxd = &sc_if->msk_cdata.msk_rxdesc[i]; 3808 if (rxd->rx_m != NULL) { 3809 bus_dmamap_unload(sc_if->msk_cdata.msk_rx_tag, 3810 rxd->rx_dmamap); 3811 m_freem(rxd->rx_m); 3812 rxd->rx_m = NULL; 3813 } 3814 } 3815 #ifdef MSK_JUMBO 3816 for (i = 0; i < MSK_JUMBO_RX_RING_CNT; i++) { 3817 jrxd = &sc_if->msk_cdata.msk_jumbo_rxdesc[i]; 3818 if (jrxd->rx_m != NULL) { 3819 bus_dmamap_sync(sc_if->msk_cdata.msk_jumbo_rx_tag, 3820 jrxd->rx_dmamap, BUS_DMASYNC_POSTREAD); 3821 bus_dmamap_unload(sc_if->msk_cdata.msk_jumbo_rx_tag, 3822 jrxd->rx_dmamap); 3823 m_freem(jrxd->rx_m); 3824 jrxd->rx_m = NULL; 3825 } 3826 } 3827 #endif 3828 for (i = 0; i < MSK_TX_RING_CNT; i++) { 3829 txd = &sc_if->msk_cdata.msk_txdesc[i]; 3830 if (txd->tx_m != NULL) { 3831 bus_dmamap_unload(sc_if->msk_cdata.msk_tx_tag, 3832 txd->tx_dmamap); 3833 m_freem(txd->tx_m); 3834 txd->tx_m = NULL; 3835 } 3836 } 3837 3838 /* 3839 * Mark the interface down. 3840 */ 3841 ifp->if_flags &= ~IFF_RUNNING; 3842 ifq_clr_oactive(&ifp->if_snd); 3843 sc_if->msk_link = 0; 3844 } 3845 3846 static int 3847 mskc_sysctl_proc_limit(SYSCTL_HANDLER_ARGS) 3848 { 3849 return sysctl_int_range(oidp, arg1, arg2, req, 3850 MSK_PROC_MIN, MSK_PROC_MAX); 3851 } 3852 3853 static int 3854 mskc_sysctl_intr_rate(SYSCTL_HANDLER_ARGS) 3855 { 3856 struct msk_softc *sc = arg1; 3857 struct lwkt_serialize *serializer = &sc->msk_serializer; 3858 int error = 0, v; 3859 3860 lwkt_serialize_enter(serializer); 3861 3862 v = sc->msk_intr_rate; 3863 error = sysctl_handle_int(oidp, &v, 0, req); 3864 if (error || req->newptr == NULL) 3865 goto back; 3866 if (v < 0) { 3867 error = EINVAL; 3868 goto back; 3869 } 3870 3871 if (sc->msk_intr_rate != v) { 3872 int flag = 0, i; 3873 3874 sc->msk_intr_rate = v; 3875 for (i = 0; i < 2; ++i) { 3876 if (sc->msk_if[i] != NULL) { 3877 flag |= sc->msk_if[i]-> 3878 arpcom.ac_if.if_flags & IFF_RUNNING; 3879 } 3880 } 3881 if (flag) 3882 mskc_set_imtimer(sc); 3883 } 3884 back: 3885 lwkt_serialize_exit(serializer); 3886 return error; 3887 } 3888 3889 static int 3890 msk_dmamem_create(device_t dev, bus_size_t size, bus_dma_tag_t *dtag, 3891 void **addr, bus_addr_t *paddr, bus_dmamap_t *dmap) 3892 { 3893 struct msk_if_softc *sc_if = device_get_softc(dev); 3894 bus_dmamem_t dmem; 3895 int error; 3896 3897 error = bus_dmamem_coherent(sc_if->msk_cdata.msk_parent_tag, 3898 MSK_RING_ALIGN, 0, 3899 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, 3900 size, BUS_DMA_WAITOK | BUS_DMA_ZERO, &dmem); 3901 if (error) { 3902 device_printf(dev, "can't create coherent DMA memory\n"); 3903 return error; 3904 } 3905 3906 *dtag = dmem.dmem_tag; 3907 *dmap = dmem.dmem_map; 3908 *addr = dmem.dmem_addr; 3909 *paddr = dmem.dmem_busaddr; 3910 3911 return 0; 3912 } 3913 3914 static void 3915 msk_dmamem_destroy(bus_dma_tag_t dtag, void *addr, bus_dmamap_t dmap) 3916 { 3917 if (dtag != NULL) { 3918 bus_dmamap_unload(dtag, dmap); 3919 bus_dmamem_free(dtag, addr, dmap); 3920 bus_dma_tag_destroy(dtag); 3921 } 3922 } 3923 3924 static void 3925 mskc_set_imtimer(struct msk_softc *sc) 3926 { 3927 if (sc->msk_intr_rate > 0) { 3928 /* 3929 * XXX myk(4) seems to use 125MHz for EC/FE/XL 3930 * and 78.125MHz for rest of chip types 3931 */ 3932 CSR_WRITE_4(sc, B2_IRQM_INI, 3933 MSK_USECS(sc, 1000000 / sc->msk_intr_rate)); 3934 CSR_WRITE_4(sc, B2_IRQM_MSK, sc->msk_intrmask); 3935 CSR_WRITE_4(sc, B2_IRQM_CTRL, TIM_START); 3936 } else { 3937 CSR_WRITE_4(sc, B2_IRQM_CTRL, TIM_STOP); 3938 } 3939 }
Cache object: f8944283b0b65b1d45c40a5565b2e5b5
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