1 /* 2 * Copyright (c) 1997, 1998, 1999 3 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed by Bill Paul. 16 * 4. Neither the name of the author nor the names of any co-contributors 17 * may be used to endorse or promote products derived from this software 18 * without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 21 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 24 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 25 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 26 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 27 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 28 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 29 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 30 * THE POSSIBILITY OF SUCH DAMAGE. 31 * 32 * $FreeBSD: src/sys/pci/if_ti.c,v 1.25.2.14 2002/02/15 04:20:20 silby Exp $ 33 * $DragonFly: src/sys/dev/netif/ti/if_ti.c,v 1.6 2003/11/20 22:07:31 dillon Exp $ 34 * 35 * $FreeBSD: src/sys/pci/if_ti.c,v 1.25.2.14 2002/02/15 04:20:20 silby Exp $ 36 */ 37 38 /* 39 * Alteon Networks Tigon PCI gigabit ethernet driver for FreeBSD. 40 * Manuals, sample driver and firmware source kits are available 41 * from http://www.alteon.com/support/openkits. 42 * 43 * Written by Bill Paul <wpaul@ctr.columbia.edu> 44 * Electrical Engineering Department 45 * Columbia University, New York City 46 */ 47 48 /* 49 * The Alteon Networks Tigon chip contains an embedded R4000 CPU, 50 * gigabit MAC, dual DMA channels and a PCI interface unit. NICs 51 * using the Tigon may have anywhere from 512K to 2MB of SRAM. The 52 * Tigon supports hardware IP, TCP and UCP checksumming, multicast 53 * filtering and jumbo (9014 byte) frames. The hardware is largely 54 * controlled by firmware, which must be loaded into the NIC during 55 * initialization. 56 * 57 * The Tigon 2 contains 2 R4000 CPUs and requires a newer firmware 58 * revision, which supports new features such as extended commands, 59 * extended jumbo receive ring desciptors and a mini receive ring. 60 * 61 * Alteon Networks is to be commended for releasing such a vast amount 62 * of development material for the Tigon NIC without requiring an NDA 63 * (although they really should have done it a long time ago). With 64 * any luck, the other vendors will finally wise up and follow Alteon's 65 * stellar example. 66 * 67 * The firmware for the Tigon 1 and 2 NICs is compiled directly into 68 * this driver by #including it as a C header file. This bloats the 69 * driver somewhat, but it's the easiest method considering that the 70 * driver code and firmware code need to be kept in sync. The source 71 * for the firmware is not provided with the FreeBSD distribution since 72 * compiling it requires a GNU toolchain targeted for mips-sgi-irix5.3. 73 * 74 * The following people deserve special thanks: 75 * - Terry Murphy of 3Com, for providing a 3c985 Tigon 1 board 76 * for testing 77 * - Raymond Lee of Netgear, for providing a pair of Netgear 78 * GA620 Tigon 2 boards for testing 79 * - Ulf Zimmermann, for bringing the GA260 to my attention and 80 * convincing me to write this driver. 81 * - Andrew Gallatin for providing FreeBSD/Alpha support. 82 */ 83 84 #include <sys/param.h> 85 #include <sys/systm.h> 86 #include <sys/sockio.h> 87 #include <sys/mbuf.h> 88 #include <sys/malloc.h> 89 #include <sys/kernel.h> 90 #include <sys/socket.h> 91 #include <sys/queue.h> 92 93 #include <net/if.h> 94 #include <net/if_arp.h> 95 #include <net/ethernet.h> 96 #include <net/if_dl.h> 97 #include <net/if_media.h> 98 #include <net/if_types.h> 99 #include <net/vlan/if_vlan_var.h> 100 101 #include <net/bpf.h> 102 103 #include <netinet/in_systm.h> 104 #include <netinet/in.h> 105 #include <netinet/ip.h> 106 107 #include <vm/vm.h> /* for vtophys */ 108 #include <vm/pmap.h> /* for vtophys */ 109 #include <machine/clock.h> /* for DELAY */ 110 #include <machine/bus_memio.h> 111 #include <machine/bus.h> 112 #include <machine/resource.h> 113 #include <sys/bus.h> 114 #include <sys/rman.h> 115 116 #include <bus/pci/pcireg.h> 117 #include <bus/pci/pcivar.h> 118 119 #include "if_tireg.h" 120 #include "ti_fw.h" 121 #include "ti_fw2.h" 122 123 /* 124 * Temporarily disable the checksum offload support for now. 125 * Tests with ftp.freesoftware.com show that after about 12 hours, 126 * the firmware will begin calculating completely bogus TX checksums 127 * and refuse to stop until the interface is reset. Unfortunately, 128 * there isn't enough time to fully debug this before the 4.1 129 * release, so this will need to stay off for now. 130 */ 131 #ifdef notdef 132 #define TI_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP | CSUM_IP_FRAGS) 133 #else 134 #define TI_CSUM_FEATURES 0 135 #endif 136 137 /* 138 * Various supported device vendors/types and their names. 139 */ 140 141 static struct ti_type ti_devs[] = { 142 { ALT_VENDORID, ALT_DEVICEID_ACENIC, 143 "Alteon AceNIC 1000baseSX Gigabit Ethernet" }, 144 { ALT_VENDORID, ALT_DEVICEID_ACENIC_COPPER, 145 "Alteon AceNIC 1000baseT Gigabit Ethernet" }, 146 { TC_VENDORID, TC_DEVICEID_3C985, 147 "3Com 3c985-SX Gigabit Ethernet" }, 148 { NG_VENDORID, NG_DEVICEID_GA620, 149 "Netgear GA620 1000baseSX Gigabit Ethernet" }, 150 { NG_VENDORID, NG_DEVICEID_GA620T, 151 "Netgear GA620 1000baseT Gigabit Ethernet" }, 152 { SGI_VENDORID, SGI_DEVICEID_TIGON, 153 "Silicon Graphics Gigabit Ethernet" }, 154 { DEC_VENDORID, DEC_DEVICEID_FARALLON_PN9000SX, 155 "Farallon PN9000SX Gigabit Ethernet" }, 156 { 0, 0, NULL } 157 }; 158 159 static int ti_probe (device_t); 160 static int ti_attach (device_t); 161 static int ti_detach (device_t); 162 static void ti_txeof (struct ti_softc *); 163 static void ti_rxeof (struct ti_softc *); 164 165 static void ti_stats_update (struct ti_softc *); 166 static int ti_encap (struct ti_softc *, struct mbuf *, 167 u_int32_t *); 168 169 static void ti_intr (void *); 170 static void ti_start (struct ifnet *); 171 static int ti_ioctl (struct ifnet *, u_long, caddr_t); 172 static void ti_init (void *); 173 static void ti_init2 (struct ti_softc *); 174 static void ti_stop (struct ti_softc *); 175 static void ti_watchdog (struct ifnet *); 176 static void ti_shutdown (device_t); 177 static int ti_ifmedia_upd (struct ifnet *); 178 static void ti_ifmedia_sts (struct ifnet *, struct ifmediareq *); 179 180 static u_int32_t ti_eeprom_putbyte (struct ti_softc *, int); 181 static u_int8_t ti_eeprom_getbyte (struct ti_softc *, 182 int, u_int8_t *); 183 static int ti_read_eeprom (struct ti_softc *, caddr_t, int, int); 184 185 static void ti_add_mcast (struct ti_softc *, struct ether_addr *); 186 static void ti_del_mcast (struct ti_softc *, struct ether_addr *); 187 static void ti_setmulti (struct ti_softc *); 188 189 static void ti_mem (struct ti_softc *, u_int32_t, 190 u_int32_t, caddr_t); 191 static void ti_loadfw (struct ti_softc *); 192 static void ti_cmd (struct ti_softc *, struct ti_cmd_desc *); 193 static void ti_cmd_ext (struct ti_softc *, struct ti_cmd_desc *, 194 caddr_t, int); 195 static void ti_handle_events (struct ti_softc *); 196 static int ti_alloc_jumbo_mem (struct ti_softc *); 197 static void *ti_jalloc (struct ti_softc *); 198 static void ti_jfree (caddr_t, u_int); 199 static void ti_jref (caddr_t, u_int); 200 static int ti_newbuf_std (struct ti_softc *, int, struct mbuf *); 201 static int ti_newbuf_mini (struct ti_softc *, int, struct mbuf *); 202 static int ti_newbuf_jumbo (struct ti_softc *, int, struct mbuf *); 203 static int ti_init_rx_ring_std (struct ti_softc *); 204 static void ti_free_rx_ring_std (struct ti_softc *); 205 static int ti_init_rx_ring_jumbo (struct ti_softc *); 206 static void ti_free_rx_ring_jumbo (struct ti_softc *); 207 static int ti_init_rx_ring_mini (struct ti_softc *); 208 static void ti_free_rx_ring_mini (struct ti_softc *); 209 static void ti_free_tx_ring (struct ti_softc *); 210 static int ti_init_tx_ring (struct ti_softc *); 211 212 static int ti_64bitslot_war (struct ti_softc *); 213 static int ti_chipinit (struct ti_softc *); 214 static int ti_gibinit (struct ti_softc *); 215 216 static device_method_t ti_methods[] = { 217 /* Device interface */ 218 DEVMETHOD(device_probe, ti_probe), 219 DEVMETHOD(device_attach, ti_attach), 220 DEVMETHOD(device_detach, ti_detach), 221 DEVMETHOD(device_shutdown, ti_shutdown), 222 { 0, 0 } 223 }; 224 225 static driver_t ti_driver = { 226 "ti", 227 ti_methods, 228 sizeof(struct ti_softc) 229 }; 230 231 static devclass_t ti_devclass; 232 233 DECLARE_DUMMY_MODULE(if_ti); 234 DRIVER_MODULE(if_ti, pci, ti_driver, ti_devclass, 0, 0); 235 236 /* 237 * Send an instruction or address to the EEPROM, check for ACK. 238 */ 239 static u_int32_t ti_eeprom_putbyte(sc, byte) 240 struct ti_softc *sc; 241 int byte; 242 { 243 int i, ack = 0; 244 245 /* 246 * Make sure we're in TX mode. 247 */ 248 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); 249 250 /* 251 * Feed in each bit and stobe the clock. 252 */ 253 for (i = 0x80; i; i >>= 1) { 254 if (byte & i) { 255 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); 256 } else { 257 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); 258 } 259 DELAY(1); 260 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 261 DELAY(1); 262 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 263 } 264 265 /* 266 * Turn off TX mode. 267 */ 268 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); 269 270 /* 271 * Check for ack. 272 */ 273 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 274 ack = CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN; 275 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 276 277 return(ack); 278 } 279 280 /* 281 * Read a byte of data stored in the EEPROM at address 'addr.' 282 * We have to send two address bytes since the EEPROM can hold 283 * more than 256 bytes of data. 284 */ 285 static u_int8_t ti_eeprom_getbyte(sc, addr, dest) 286 struct ti_softc *sc; 287 int addr; 288 u_int8_t *dest; 289 { 290 int i; 291 u_int8_t byte = 0; 292 293 EEPROM_START; 294 295 /* 296 * Send write control code to EEPROM. 297 */ 298 if (ti_eeprom_putbyte(sc, EEPROM_CTL_WRITE)) { 299 printf("ti%d: failed to send write command, status: %x\n", 300 sc->ti_unit, CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); 301 return(1); 302 } 303 304 /* 305 * Send first byte of address of byte we want to read. 306 */ 307 if (ti_eeprom_putbyte(sc, (addr >> 8) & 0xFF)) { 308 printf("ti%d: failed to send address, status: %x\n", 309 sc->ti_unit, CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); 310 return(1); 311 } 312 /* 313 * Send second byte address of byte we want to read. 314 */ 315 if (ti_eeprom_putbyte(sc, addr & 0xFF)) { 316 printf("ti%d: failed to send address, status: %x\n", 317 sc->ti_unit, CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); 318 return(1); 319 } 320 321 EEPROM_STOP; 322 EEPROM_START; 323 /* 324 * Send read control code to EEPROM. 325 */ 326 if (ti_eeprom_putbyte(sc, EEPROM_CTL_READ)) { 327 printf("ti%d: failed to send read command, status: %x\n", 328 sc->ti_unit, CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); 329 return(1); 330 } 331 332 /* 333 * Start reading bits from EEPROM. 334 */ 335 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); 336 for (i = 0x80; i; i >>= 1) { 337 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 338 DELAY(1); 339 if (CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN) 340 byte |= i; 341 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 342 DELAY(1); 343 } 344 345 EEPROM_STOP; 346 347 /* 348 * No ACK generated for read, so just return byte. 349 */ 350 351 *dest = byte; 352 353 return(0); 354 } 355 356 /* 357 * Read a sequence of bytes from the EEPROM. 358 */ 359 static int ti_read_eeprom(sc, dest, off, cnt) 360 struct ti_softc *sc; 361 caddr_t dest; 362 int off; 363 int cnt; 364 { 365 int err = 0, i; 366 u_int8_t byte = 0; 367 368 for (i = 0; i < cnt; i++) { 369 err = ti_eeprom_getbyte(sc, off + i, &byte); 370 if (err) 371 break; 372 *(dest + i) = byte; 373 } 374 375 return(err ? 1 : 0); 376 } 377 378 /* 379 * NIC memory access function. Can be used to either clear a section 380 * of NIC local memory or (if buf is non-NULL) copy data into it. 381 */ 382 static void ti_mem(sc, addr, len, buf) 383 struct ti_softc *sc; 384 u_int32_t addr, len; 385 caddr_t buf; 386 { 387 int segptr, segsize, cnt; 388 caddr_t ti_winbase, ptr; 389 390 segptr = addr; 391 cnt = len; 392 ti_winbase = (caddr_t)(sc->ti_vhandle + TI_WINDOW); 393 ptr = buf; 394 395 while(cnt) { 396 if (cnt < TI_WINLEN) 397 segsize = cnt; 398 else 399 segsize = TI_WINLEN - (segptr % TI_WINLEN); 400 CSR_WRITE_4(sc, TI_WINBASE, (segptr & ~(TI_WINLEN - 1))); 401 if (buf == NULL) 402 bzero((char *)ti_winbase + (segptr & 403 (TI_WINLEN - 1)), segsize); 404 else { 405 bcopy((char *)ptr, (char *)ti_winbase + 406 (segptr & (TI_WINLEN - 1)), segsize); 407 ptr += segsize; 408 } 409 segptr += segsize; 410 cnt -= segsize; 411 } 412 413 return; 414 } 415 416 /* 417 * Load firmware image into the NIC. Check that the firmware revision 418 * is acceptable and see if we want the firmware for the Tigon 1 or 419 * Tigon 2. 420 */ 421 static void ti_loadfw(sc) 422 struct ti_softc *sc; 423 { 424 switch(sc->ti_hwrev) { 425 case TI_HWREV_TIGON: 426 if (tigonFwReleaseMajor != TI_FIRMWARE_MAJOR || 427 tigonFwReleaseMinor != TI_FIRMWARE_MINOR || 428 tigonFwReleaseFix != TI_FIRMWARE_FIX) { 429 printf("ti%d: firmware revision mismatch; want " 430 "%d.%d.%d, got %d.%d.%d\n", sc->ti_unit, 431 TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR, 432 TI_FIRMWARE_FIX, tigonFwReleaseMajor, 433 tigonFwReleaseMinor, tigonFwReleaseFix); 434 return; 435 } 436 ti_mem(sc, tigonFwTextAddr, tigonFwTextLen, 437 (caddr_t)tigonFwText); 438 ti_mem(sc, tigonFwDataAddr, tigonFwDataLen, 439 (caddr_t)tigonFwData); 440 ti_mem(sc, tigonFwRodataAddr, tigonFwRodataLen, 441 (caddr_t)tigonFwRodata); 442 ti_mem(sc, tigonFwBssAddr, tigonFwBssLen, NULL); 443 ti_mem(sc, tigonFwSbssAddr, tigonFwSbssLen, NULL); 444 CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigonFwStartAddr); 445 break; 446 case TI_HWREV_TIGON_II: 447 if (tigon2FwReleaseMajor != TI_FIRMWARE_MAJOR || 448 tigon2FwReleaseMinor != TI_FIRMWARE_MINOR || 449 tigon2FwReleaseFix != TI_FIRMWARE_FIX) { 450 printf("ti%d: firmware revision mismatch; want " 451 "%d.%d.%d, got %d.%d.%d\n", sc->ti_unit, 452 TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR, 453 TI_FIRMWARE_FIX, tigon2FwReleaseMajor, 454 tigon2FwReleaseMinor, tigon2FwReleaseFix); 455 return; 456 } 457 ti_mem(sc, tigon2FwTextAddr, tigon2FwTextLen, 458 (caddr_t)tigon2FwText); 459 ti_mem(sc, tigon2FwDataAddr, tigon2FwDataLen, 460 (caddr_t)tigon2FwData); 461 ti_mem(sc, tigon2FwRodataAddr, tigon2FwRodataLen, 462 (caddr_t)tigon2FwRodata); 463 ti_mem(sc, tigon2FwBssAddr, tigon2FwBssLen, NULL); 464 ti_mem(sc, tigon2FwSbssAddr, tigon2FwSbssLen, NULL); 465 CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigon2FwStartAddr); 466 break; 467 default: 468 printf("ti%d: can't load firmware: unknown hardware rev\n", 469 sc->ti_unit); 470 break; 471 } 472 473 return; 474 } 475 476 /* 477 * Send the NIC a command via the command ring. 478 */ 479 static void ti_cmd(sc, cmd) 480 struct ti_softc *sc; 481 struct ti_cmd_desc *cmd; 482 { 483 u_int32_t index; 484 485 if (sc->ti_rdata->ti_cmd_ring == NULL) 486 return; 487 488 index = sc->ti_cmd_saved_prodidx; 489 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(cmd)); 490 TI_INC(index, TI_CMD_RING_CNT); 491 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index); 492 sc->ti_cmd_saved_prodidx = index; 493 494 return; 495 } 496 497 /* 498 * Send the NIC an extended command. The 'len' parameter specifies the 499 * number of command slots to include after the initial command. 500 */ 501 static void ti_cmd_ext(sc, cmd, arg, len) 502 struct ti_softc *sc; 503 struct ti_cmd_desc *cmd; 504 caddr_t arg; 505 int len; 506 { 507 u_int32_t index; 508 int i; 509 510 if (sc->ti_rdata->ti_cmd_ring == NULL) 511 return; 512 513 index = sc->ti_cmd_saved_prodidx; 514 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(u_int32_t *)(cmd)); 515 TI_INC(index, TI_CMD_RING_CNT); 516 for (i = 0; i < len; i++) { 517 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), 518 *(u_int32_t *)(&arg[i * 4])); 519 TI_INC(index, TI_CMD_RING_CNT); 520 } 521 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index); 522 sc->ti_cmd_saved_prodidx = index; 523 524 return; 525 } 526 527 /* 528 * Handle events that have triggered interrupts. 529 */ 530 static void ti_handle_events(sc) 531 struct ti_softc *sc; 532 { 533 struct ti_event_desc *e; 534 535 if (sc->ti_rdata->ti_event_ring == NULL) 536 return; 537 538 while (sc->ti_ev_saved_considx != sc->ti_ev_prodidx.ti_idx) { 539 e = &sc->ti_rdata->ti_event_ring[sc->ti_ev_saved_considx]; 540 switch(e->ti_event) { 541 case TI_EV_LINKSTAT_CHANGED: 542 sc->ti_linkstat = e->ti_code; 543 if (e->ti_code == TI_EV_CODE_LINK_UP) 544 printf("ti%d: 10/100 link up\n", sc->ti_unit); 545 else if (e->ti_code == TI_EV_CODE_GIG_LINK_UP) 546 printf("ti%d: gigabit link up\n", sc->ti_unit); 547 else if (e->ti_code == TI_EV_CODE_LINK_DOWN) 548 printf("ti%d: link down\n", sc->ti_unit); 549 break; 550 case TI_EV_ERROR: 551 if (e->ti_code == TI_EV_CODE_ERR_INVAL_CMD) 552 printf("ti%d: invalid command\n", sc->ti_unit); 553 else if (e->ti_code == TI_EV_CODE_ERR_UNIMP_CMD) 554 printf("ti%d: unknown command\n", sc->ti_unit); 555 else if (e->ti_code == TI_EV_CODE_ERR_BADCFG) 556 printf("ti%d: bad config data\n", sc->ti_unit); 557 break; 558 case TI_EV_FIRMWARE_UP: 559 ti_init2(sc); 560 break; 561 case TI_EV_STATS_UPDATED: 562 ti_stats_update(sc); 563 break; 564 case TI_EV_RESET_JUMBO_RING: 565 case TI_EV_MCAST_UPDATED: 566 /* Who cares. */ 567 break; 568 default: 569 printf("ti%d: unknown event: %d\n", 570 sc->ti_unit, e->ti_event); 571 break; 572 } 573 /* Advance the consumer index. */ 574 TI_INC(sc->ti_ev_saved_considx, TI_EVENT_RING_CNT); 575 CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, sc->ti_ev_saved_considx); 576 } 577 578 return; 579 } 580 581 /* 582 * Memory management for the jumbo receive ring is a pain in the 583 * butt. We need to allocate at least 9018 bytes of space per frame, 584 * _and_ it has to be contiguous (unless you use the extended 585 * jumbo descriptor format). Using malloc() all the time won't 586 * work: malloc() allocates memory in powers of two, which means we 587 * would end up wasting a considerable amount of space by allocating 588 * 9K chunks. We don't have a jumbo mbuf cluster pool. Thus, we have 589 * to do our own memory management. 590 * 591 * The driver needs to allocate a contiguous chunk of memory at boot 592 * time. We then chop this up ourselves into 9K pieces and use them 593 * as external mbuf storage. 594 * 595 * One issue here is how much memory to allocate. The jumbo ring has 596 * 256 slots in it, but at 9K per slot than can consume over 2MB of 597 * RAM. This is a bit much, especially considering we also need 598 * RAM for the standard ring and mini ring (on the Tigon 2). To 599 * save space, we only actually allocate enough memory for 64 slots 600 * by default, which works out to between 500 and 600K. This can 601 * be tuned by changing a #define in if_tireg.h. 602 */ 603 604 static int ti_alloc_jumbo_mem(sc) 605 struct ti_softc *sc; 606 { 607 caddr_t ptr; 608 int i; 609 struct ti_jpool_entry *entry; 610 611 /* Grab a big chunk o' storage. */ 612 sc->ti_cdata.ti_jumbo_buf = contigmalloc(TI_JMEM, M_DEVBUF, 613 M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0); 614 615 if (sc->ti_cdata.ti_jumbo_buf == NULL) { 616 printf("ti%d: no memory for jumbo buffers!\n", sc->ti_unit); 617 return(ENOBUFS); 618 } 619 620 SLIST_INIT(&sc->ti_jfree_listhead); 621 SLIST_INIT(&sc->ti_jinuse_listhead); 622 623 /* 624 * Now divide it up into 9K pieces and save the addresses 625 * in an array. Note that we play an evil trick here by using 626 * the first few bytes in the buffer to hold the the address 627 * of the softc structure for this interface. This is because 628 * ti_jfree() needs it, but it is called by the mbuf management 629 * code which will not pass it to us explicitly. 630 */ 631 ptr = sc->ti_cdata.ti_jumbo_buf; 632 for (i = 0; i < TI_JSLOTS; i++) { 633 u_int64_t **aptr; 634 aptr = (u_int64_t **)ptr; 635 aptr[0] = (u_int64_t *)sc; 636 ptr += sizeof(u_int64_t); 637 sc->ti_cdata.ti_jslots[i].ti_buf = ptr; 638 sc->ti_cdata.ti_jslots[i].ti_inuse = 0; 639 ptr += (TI_JLEN - sizeof(u_int64_t)); 640 entry = malloc(sizeof(struct ti_jpool_entry), 641 M_DEVBUF, M_NOWAIT); 642 if (entry == NULL) { 643 contigfree(sc->ti_cdata.ti_jumbo_buf, TI_JMEM, 644 M_DEVBUF); 645 sc->ti_cdata.ti_jumbo_buf = NULL; 646 printf("ti%d: no memory for jumbo " 647 "buffer queue!\n", sc->ti_unit); 648 return(ENOBUFS); 649 } 650 entry->slot = i; 651 SLIST_INSERT_HEAD(&sc->ti_jfree_listhead, entry, jpool_entries); 652 } 653 654 return(0); 655 } 656 657 /* 658 * Allocate a jumbo buffer. 659 */ 660 static void *ti_jalloc(sc) 661 struct ti_softc *sc; 662 { 663 struct ti_jpool_entry *entry; 664 665 entry = SLIST_FIRST(&sc->ti_jfree_listhead); 666 667 if (entry == NULL) { 668 printf("ti%d: no free jumbo buffers\n", sc->ti_unit); 669 return(NULL); 670 } 671 672 SLIST_REMOVE_HEAD(&sc->ti_jfree_listhead, jpool_entries); 673 SLIST_INSERT_HEAD(&sc->ti_jinuse_listhead, entry, jpool_entries); 674 sc->ti_cdata.ti_jslots[entry->slot].ti_inuse = 1; 675 return(sc->ti_cdata.ti_jslots[entry->slot].ti_buf); 676 } 677 678 /* 679 * Adjust usage count on a jumbo buffer. In general this doesn't 680 * get used much because our jumbo buffers don't get passed around 681 * too much, but it's implemented for correctness. 682 */ 683 static void ti_jref(buf, size) 684 caddr_t buf; 685 u_int size; 686 { 687 struct ti_softc *sc; 688 u_int64_t **aptr; 689 int i; 690 691 /* Extract the softc struct pointer. */ 692 aptr = (u_int64_t **)(buf - sizeof(u_int64_t)); 693 sc = (struct ti_softc *)(aptr[0]); 694 695 if (sc == NULL) 696 panic("ti_jref: can't find softc pointer!"); 697 698 if (size != TI_JUMBO_FRAMELEN) 699 panic("ti_jref: adjusting refcount of buf of wrong size!"); 700 701 /* calculate the slot this buffer belongs to */ 702 703 i = ((vm_offset_t)aptr 704 - (vm_offset_t)sc->ti_cdata.ti_jumbo_buf) / TI_JLEN; 705 706 if ((i < 0) || (i >= TI_JSLOTS)) 707 panic("ti_jref: asked to reference buffer " 708 "that we don't manage!"); 709 else if (sc->ti_cdata.ti_jslots[i].ti_inuse == 0) 710 panic("ti_jref: buffer already free!"); 711 else 712 sc->ti_cdata.ti_jslots[i].ti_inuse++; 713 714 return; 715 } 716 717 /* 718 * Release a jumbo buffer. 719 */ 720 static void ti_jfree(buf, size) 721 caddr_t buf; 722 u_int size; 723 { 724 struct ti_softc *sc; 725 u_int64_t **aptr; 726 int i; 727 struct ti_jpool_entry *entry; 728 729 /* Extract the softc struct pointer. */ 730 aptr = (u_int64_t **)(buf - sizeof(u_int64_t)); 731 sc = (struct ti_softc *)(aptr[0]); 732 733 if (sc == NULL) 734 panic("ti_jfree: can't find softc pointer!"); 735 736 if (size != TI_JUMBO_FRAMELEN) 737 panic("ti_jfree: freeing buffer of wrong size!"); 738 739 /* calculate the slot this buffer belongs to */ 740 741 i = ((vm_offset_t)aptr 742 - (vm_offset_t)sc->ti_cdata.ti_jumbo_buf) / TI_JLEN; 743 744 if ((i < 0) || (i >= TI_JSLOTS)) 745 panic("ti_jfree: asked to free buffer that we don't manage!"); 746 else if (sc->ti_cdata.ti_jslots[i].ti_inuse == 0) 747 panic("ti_jfree: buffer already free!"); 748 else { 749 sc->ti_cdata.ti_jslots[i].ti_inuse--; 750 if(sc->ti_cdata.ti_jslots[i].ti_inuse == 0) { 751 entry = SLIST_FIRST(&sc->ti_jinuse_listhead); 752 if (entry == NULL) 753 panic("ti_jfree: buffer not in use!"); 754 entry->slot = i; 755 SLIST_REMOVE_HEAD(&sc->ti_jinuse_listhead, 756 jpool_entries); 757 SLIST_INSERT_HEAD(&sc->ti_jfree_listhead, 758 entry, jpool_entries); 759 } 760 } 761 762 return; 763 } 764 765 766 /* 767 * Intialize a standard receive ring descriptor. 768 */ 769 static int ti_newbuf_std(sc, i, m) 770 struct ti_softc *sc; 771 int i; 772 struct mbuf *m; 773 { 774 struct mbuf *m_new = NULL; 775 struct ti_rx_desc *r; 776 777 if (m == NULL) { 778 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 779 if (m_new == NULL) 780 return(ENOBUFS); 781 782 MCLGET(m_new, M_DONTWAIT); 783 if (!(m_new->m_flags & M_EXT)) { 784 m_freem(m_new); 785 return(ENOBUFS); 786 } 787 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 788 } else { 789 m_new = m; 790 m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 791 m_new->m_data = m_new->m_ext.ext_buf; 792 } 793 794 m_adj(m_new, ETHER_ALIGN); 795 sc->ti_cdata.ti_rx_std_chain[i] = m_new; 796 r = &sc->ti_rdata->ti_rx_std_ring[i]; 797 TI_HOSTADDR(r->ti_addr) = vtophys(mtod(m_new, caddr_t)); 798 r->ti_type = TI_BDTYPE_RECV_BD; 799 r->ti_flags = 0; 800 if (sc->arpcom.ac_if.if_hwassist) 801 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 802 r->ti_len = m_new->m_len; 803 r->ti_idx = i; 804 805 return(0); 806 } 807 808 /* 809 * Intialize a mini receive ring descriptor. This only applies to 810 * the Tigon 2. 811 */ 812 static int ti_newbuf_mini(sc, i, m) 813 struct ti_softc *sc; 814 int i; 815 struct mbuf *m; 816 { 817 struct mbuf *m_new = NULL; 818 struct ti_rx_desc *r; 819 820 if (m == NULL) { 821 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 822 if (m_new == NULL) { 823 return(ENOBUFS); 824 } 825 m_new->m_len = m_new->m_pkthdr.len = MHLEN; 826 } else { 827 m_new = m; 828 m_new->m_data = m_new->m_pktdat; 829 m_new->m_len = m_new->m_pkthdr.len = MHLEN; 830 } 831 832 m_adj(m_new, ETHER_ALIGN); 833 r = &sc->ti_rdata->ti_rx_mini_ring[i]; 834 sc->ti_cdata.ti_rx_mini_chain[i] = m_new; 835 TI_HOSTADDR(r->ti_addr) = vtophys(mtod(m_new, caddr_t)); 836 r->ti_type = TI_BDTYPE_RECV_BD; 837 r->ti_flags = TI_BDFLAG_MINI_RING; 838 if (sc->arpcom.ac_if.if_hwassist) 839 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 840 r->ti_len = m_new->m_len; 841 r->ti_idx = i; 842 843 return(0); 844 } 845 846 /* 847 * Initialize a jumbo receive ring descriptor. This allocates 848 * a jumbo buffer from the pool managed internally by the driver. 849 */ 850 static int ti_newbuf_jumbo(sc, i, m) 851 struct ti_softc *sc; 852 int i; 853 struct mbuf *m; 854 { 855 struct mbuf *m_new = NULL; 856 struct ti_rx_desc *r; 857 858 if (m == NULL) { 859 caddr_t *buf = NULL; 860 861 /* Allocate the mbuf. */ 862 MGETHDR(m_new, M_DONTWAIT, MT_DATA); 863 if (m_new == NULL) { 864 return(ENOBUFS); 865 } 866 867 /* Allocate the jumbo buffer */ 868 buf = ti_jalloc(sc); 869 if (buf == NULL) { 870 m_freem(m_new); 871 printf("ti%d: jumbo allocation failed " 872 "-- packet dropped!\n", sc->ti_unit); 873 return(ENOBUFS); 874 } 875 876 /* Attach the buffer to the mbuf. */ 877 m_new->m_data = m_new->m_ext.ext_buf = (void *)buf; 878 m_new->m_flags |= M_EXT; 879 m_new->m_len = m_new->m_pkthdr.len = 880 m_new->m_ext.ext_size = TI_JUMBO_FRAMELEN; 881 m_new->m_ext.ext_free = ti_jfree; 882 m_new->m_ext.ext_ref = ti_jref; 883 } else { 884 m_new = m; 885 m_new->m_data = m_new->m_ext.ext_buf; 886 m_new->m_ext.ext_size = TI_JUMBO_FRAMELEN; 887 } 888 889 m_adj(m_new, ETHER_ALIGN); 890 /* Set up the descriptor. */ 891 r = &sc->ti_rdata->ti_rx_jumbo_ring[i]; 892 sc->ti_cdata.ti_rx_jumbo_chain[i] = m_new; 893 TI_HOSTADDR(r->ti_addr) = vtophys(mtod(m_new, caddr_t)); 894 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD; 895 r->ti_flags = TI_BDFLAG_JUMBO_RING; 896 if (sc->arpcom.ac_if.if_hwassist) 897 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 898 r->ti_len = m_new->m_len; 899 r->ti_idx = i; 900 901 return(0); 902 } 903 904 /* 905 * The standard receive ring has 512 entries in it. At 2K per mbuf cluster, 906 * that's 1MB or memory, which is a lot. For now, we fill only the first 907 * 256 ring entries and hope that our CPU is fast enough to keep up with 908 * the NIC. 909 */ 910 static int ti_init_rx_ring_std(sc) 911 struct ti_softc *sc; 912 { 913 int i; 914 struct ti_cmd_desc cmd; 915 916 for (i = 0; i < TI_SSLOTS; i++) { 917 if (ti_newbuf_std(sc, i, NULL) == ENOBUFS) 918 return(ENOBUFS); 919 }; 920 921 TI_UPDATE_STDPROD(sc, i - 1); 922 sc->ti_std = i - 1; 923 924 return(0); 925 } 926 927 static void ti_free_rx_ring_std(sc) 928 struct ti_softc *sc; 929 { 930 int i; 931 932 for (i = 0; i < TI_STD_RX_RING_CNT; i++) { 933 if (sc->ti_cdata.ti_rx_std_chain[i] != NULL) { 934 m_freem(sc->ti_cdata.ti_rx_std_chain[i]); 935 sc->ti_cdata.ti_rx_std_chain[i] = NULL; 936 } 937 bzero((char *)&sc->ti_rdata->ti_rx_std_ring[i], 938 sizeof(struct ti_rx_desc)); 939 } 940 941 return; 942 } 943 944 static int ti_init_rx_ring_jumbo(sc) 945 struct ti_softc *sc; 946 { 947 int i; 948 struct ti_cmd_desc cmd; 949 950 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) { 951 if (ti_newbuf_jumbo(sc, i, NULL) == ENOBUFS) 952 return(ENOBUFS); 953 }; 954 955 TI_UPDATE_JUMBOPROD(sc, i - 1); 956 sc->ti_jumbo = i - 1; 957 958 return(0); 959 } 960 961 static void ti_free_rx_ring_jumbo(sc) 962 struct ti_softc *sc; 963 { 964 int i; 965 966 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) { 967 if (sc->ti_cdata.ti_rx_jumbo_chain[i] != NULL) { 968 m_freem(sc->ti_cdata.ti_rx_jumbo_chain[i]); 969 sc->ti_cdata.ti_rx_jumbo_chain[i] = NULL; 970 } 971 bzero((char *)&sc->ti_rdata->ti_rx_jumbo_ring[i], 972 sizeof(struct ti_rx_desc)); 973 } 974 975 return; 976 } 977 978 static int ti_init_rx_ring_mini(sc) 979 struct ti_softc *sc; 980 { 981 int i; 982 983 for (i = 0; i < TI_MSLOTS; i++) { 984 if (ti_newbuf_mini(sc, i, NULL) == ENOBUFS) 985 return(ENOBUFS); 986 }; 987 988 TI_UPDATE_MINIPROD(sc, i - 1); 989 sc->ti_mini = i - 1; 990 991 return(0); 992 } 993 994 static void ti_free_rx_ring_mini(sc) 995 struct ti_softc *sc; 996 { 997 int i; 998 999 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) { 1000 if (sc->ti_cdata.ti_rx_mini_chain[i] != NULL) { 1001 m_freem(sc->ti_cdata.ti_rx_mini_chain[i]); 1002 sc->ti_cdata.ti_rx_mini_chain[i] = NULL; 1003 } 1004 bzero((char *)&sc->ti_rdata->ti_rx_mini_ring[i], 1005 sizeof(struct ti_rx_desc)); 1006 } 1007 1008 return; 1009 } 1010 1011 static void ti_free_tx_ring(sc) 1012 struct ti_softc *sc; 1013 { 1014 int i; 1015 1016 if (sc->ti_rdata->ti_tx_ring == NULL) 1017 return; 1018 1019 for (i = 0; i < TI_TX_RING_CNT; i++) { 1020 if (sc->ti_cdata.ti_tx_chain[i] != NULL) { 1021 m_freem(sc->ti_cdata.ti_tx_chain[i]); 1022 sc->ti_cdata.ti_tx_chain[i] = NULL; 1023 } 1024 bzero((char *)&sc->ti_rdata->ti_tx_ring[i], 1025 sizeof(struct ti_tx_desc)); 1026 } 1027 1028 return; 1029 } 1030 1031 static int ti_init_tx_ring(sc) 1032 struct ti_softc *sc; 1033 { 1034 sc->ti_txcnt = 0; 1035 sc->ti_tx_saved_considx = 0; 1036 CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, 0); 1037 return(0); 1038 } 1039 1040 /* 1041 * The Tigon 2 firmware has a new way to add/delete multicast addresses, 1042 * but we have to support the old way too so that Tigon 1 cards will 1043 * work. 1044 */ 1045 void ti_add_mcast(sc, addr) 1046 struct ti_softc *sc; 1047 struct ether_addr *addr; 1048 { 1049 struct ti_cmd_desc cmd; 1050 u_int16_t *m; 1051 u_int32_t ext[2] = {0, 0}; 1052 1053 m = (u_int16_t *)&addr->octet[0]; 1054 1055 switch(sc->ti_hwrev) { 1056 case TI_HWREV_TIGON: 1057 CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0])); 1058 CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2])); 1059 TI_DO_CMD(TI_CMD_ADD_MCAST_ADDR, 0, 0); 1060 break; 1061 case TI_HWREV_TIGON_II: 1062 ext[0] = htons(m[0]); 1063 ext[1] = (htons(m[1]) << 16) | htons(m[2]); 1064 TI_DO_CMD_EXT(TI_CMD_EXT_ADD_MCAST, 0, 0, (caddr_t)&ext, 2); 1065 break; 1066 default: 1067 printf("ti%d: unknown hwrev\n", sc->ti_unit); 1068 break; 1069 } 1070 1071 return; 1072 } 1073 1074 void ti_del_mcast(sc, addr) 1075 struct ti_softc *sc; 1076 struct ether_addr *addr; 1077 { 1078 struct ti_cmd_desc cmd; 1079 u_int16_t *m; 1080 u_int32_t ext[2] = {0, 0}; 1081 1082 m = (u_int16_t *)&addr->octet[0]; 1083 1084 switch(sc->ti_hwrev) { 1085 case TI_HWREV_TIGON: 1086 CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0])); 1087 CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2])); 1088 TI_DO_CMD(TI_CMD_DEL_MCAST_ADDR, 0, 0); 1089 break; 1090 case TI_HWREV_TIGON_II: 1091 ext[0] = htons(m[0]); 1092 ext[1] = (htons(m[1]) << 16) | htons(m[2]); 1093 TI_DO_CMD_EXT(TI_CMD_EXT_DEL_MCAST, 0, 0, (caddr_t)&ext, 2); 1094 break; 1095 default: 1096 printf("ti%d: unknown hwrev\n", sc->ti_unit); 1097 break; 1098 } 1099 1100 return; 1101 } 1102 1103 /* 1104 * Configure the Tigon's multicast address filter. 1105 * 1106 * The actual multicast table management is a bit of a pain, thanks to 1107 * slight brain damage on the part of both Alteon and us. With our 1108 * multicast code, we are only alerted when the multicast address table 1109 * changes and at that point we only have the current list of addresses: 1110 * we only know the current state, not the previous state, so we don't 1111 * actually know what addresses were removed or added. The firmware has 1112 * state, but we can't get our grubby mits on it, and there is no 'delete 1113 * all multicast addresses' command. Hence, we have to maintain our own 1114 * state so we know what addresses have been programmed into the NIC at 1115 * any given time. 1116 */ 1117 static void ti_setmulti(sc) 1118 struct ti_softc *sc; 1119 { 1120 struct ifnet *ifp; 1121 struct ifmultiaddr *ifma; 1122 struct ti_cmd_desc cmd; 1123 struct ti_mc_entry *mc; 1124 u_int32_t intrs; 1125 1126 ifp = &sc->arpcom.ac_if; 1127 1128 if (ifp->if_flags & IFF_ALLMULTI) { 1129 TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_ENB, 0); 1130 return; 1131 } else { 1132 TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_DIS, 0); 1133 } 1134 1135 /* Disable interrupts. */ 1136 intrs = CSR_READ_4(sc, TI_MB_HOSTINTR); 1137 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); 1138 1139 /* First, zot all the existing filters. */ 1140 while (sc->ti_mc_listhead.slh_first != NULL) { 1141 mc = sc->ti_mc_listhead.slh_first; 1142 ti_del_mcast(sc, &mc->mc_addr); 1143 SLIST_REMOVE_HEAD(&sc->ti_mc_listhead, mc_entries); 1144 free(mc, M_DEVBUF); 1145 } 1146 1147 /* Now program new ones. */ 1148 for (ifma = ifp->if_multiaddrs.lh_first; 1149 ifma != NULL; ifma = ifma->ifma_link.le_next) { 1150 if (ifma->ifma_addr->sa_family != AF_LINK) 1151 continue; 1152 mc = malloc(sizeof(struct ti_mc_entry), M_DEVBUF, M_NOWAIT); 1153 bcopy(LLADDR((struct sockaddr_dl *)ifma->ifma_addr), 1154 (char *)&mc->mc_addr, ETHER_ADDR_LEN); 1155 SLIST_INSERT_HEAD(&sc->ti_mc_listhead, mc, mc_entries); 1156 ti_add_mcast(sc, &mc->mc_addr); 1157 } 1158 1159 /* Re-enable interrupts. */ 1160 CSR_WRITE_4(sc, TI_MB_HOSTINTR, intrs); 1161 1162 return; 1163 } 1164 1165 /* 1166 * Check to see if the BIOS has configured us for a 64 bit slot when 1167 * we aren't actually in one. If we detect this condition, we can work 1168 * around it on the Tigon 2 by setting a bit in the PCI state register, 1169 * but for the Tigon 1 we must give up and abort the interface attach. 1170 */ 1171 static int ti_64bitslot_war(sc) 1172 struct ti_softc *sc; 1173 { 1174 if (!(CSR_READ_4(sc, TI_PCI_STATE) & TI_PCISTATE_32BIT_BUS)) { 1175 CSR_WRITE_4(sc, 0x600, 0); 1176 CSR_WRITE_4(sc, 0x604, 0); 1177 CSR_WRITE_4(sc, 0x600, 0x5555AAAA); 1178 if (CSR_READ_4(sc, 0x604) == 0x5555AAAA) { 1179 if (sc->ti_hwrev == TI_HWREV_TIGON) 1180 return(EINVAL); 1181 else { 1182 TI_SETBIT(sc, TI_PCI_STATE, 1183 TI_PCISTATE_32BIT_BUS); 1184 return(0); 1185 } 1186 } 1187 } 1188 1189 return(0); 1190 } 1191 1192 /* 1193 * Do endian, PCI and DMA initialization. Also check the on-board ROM 1194 * self-test results. 1195 */ 1196 static int ti_chipinit(sc) 1197 struct ti_softc *sc; 1198 { 1199 u_int32_t cacheline; 1200 u_int32_t pci_writemax = 0; 1201 1202 /* Initialize link to down state. */ 1203 sc->ti_linkstat = TI_EV_CODE_LINK_DOWN; 1204 1205 if (sc->arpcom.ac_if.if_capenable & IFCAP_HWCSUM) 1206 sc->arpcom.ac_if.if_hwassist = TI_CSUM_FEATURES; 1207 else 1208 sc->arpcom.ac_if.if_hwassist = 0; 1209 1210 /* Set endianness before we access any non-PCI registers. */ 1211 #if BYTE_ORDER == BIG_ENDIAN 1212 CSR_WRITE_4(sc, TI_MISC_HOST_CTL, 1213 TI_MHC_BIGENDIAN_INIT | (TI_MHC_BIGENDIAN_INIT << 24)); 1214 #else 1215 CSR_WRITE_4(sc, TI_MISC_HOST_CTL, 1216 TI_MHC_LITTLEENDIAN_INIT | (TI_MHC_LITTLEENDIAN_INIT << 24)); 1217 #endif 1218 1219 /* Check the ROM failed bit to see if self-tests passed. */ 1220 if (CSR_READ_4(sc, TI_CPU_STATE) & TI_CPUSTATE_ROMFAIL) { 1221 printf("ti%d: board self-diagnostics failed!\n", sc->ti_unit); 1222 return(ENODEV); 1223 } 1224 1225 /* Halt the CPU. */ 1226 TI_SETBIT(sc, TI_CPU_STATE, TI_CPUSTATE_HALT); 1227 1228 /* Figure out the hardware revision. */ 1229 switch(CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_CHIP_REV_MASK) { 1230 case TI_REV_TIGON_I: 1231 sc->ti_hwrev = TI_HWREV_TIGON; 1232 break; 1233 case TI_REV_TIGON_II: 1234 sc->ti_hwrev = TI_HWREV_TIGON_II; 1235 break; 1236 default: 1237 printf("ti%d: unsupported chip revision\n", sc->ti_unit); 1238 return(ENODEV); 1239 } 1240 1241 /* Do special setup for Tigon 2. */ 1242 if (sc->ti_hwrev == TI_HWREV_TIGON_II) { 1243 TI_SETBIT(sc, TI_CPU_CTL_B, TI_CPUSTATE_HALT); 1244 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_SRAM_BANK_512K); 1245 TI_SETBIT(sc, TI_MISC_CONF, TI_MCR_SRAM_SYNCHRONOUS); 1246 } 1247 1248 /* Set up the PCI state register. */ 1249 CSR_WRITE_4(sc, TI_PCI_STATE, TI_PCI_READ_CMD|TI_PCI_WRITE_CMD); 1250 if (sc->ti_hwrev == TI_HWREV_TIGON_II) { 1251 TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_USE_MEM_RD_MULT); 1252 } 1253 1254 /* Clear the read/write max DMA parameters. */ 1255 TI_CLRBIT(sc, TI_PCI_STATE, (TI_PCISTATE_WRITE_MAXDMA| 1256 TI_PCISTATE_READ_MAXDMA)); 1257 1258 /* Get cache line size. */ 1259 cacheline = CSR_READ_4(sc, TI_PCI_BIST) & 0xFF; 1260 1261 /* 1262 * If the system has set enabled the PCI memory write 1263 * and invalidate command in the command register, set 1264 * the write max parameter accordingly. This is necessary 1265 * to use MWI with the Tigon 2. 1266 */ 1267 if (CSR_READ_4(sc, TI_PCI_CMDSTAT) & PCIM_CMD_MWIEN) { 1268 switch(cacheline) { 1269 case 1: 1270 case 4: 1271 case 8: 1272 case 16: 1273 case 32: 1274 case 64: 1275 break; 1276 default: 1277 /* Disable PCI memory write and invalidate. */ 1278 if (bootverbose) 1279 printf("ti%d: cache line size %d not " 1280 "supported; disabling PCI MWI\n", 1281 sc->ti_unit, cacheline); 1282 CSR_WRITE_4(sc, TI_PCI_CMDSTAT, CSR_READ_4(sc, 1283 TI_PCI_CMDSTAT) & ~PCIM_CMD_MWIEN); 1284 break; 1285 } 1286 } 1287 1288 #ifdef __brokenalpha__ 1289 /* 1290 * From the Alteon sample driver: 1291 * Must insure that we do not cross an 8K (bytes) boundary 1292 * for DMA reads. Our highest limit is 1K bytes. This is a 1293 * restriction on some ALPHA platforms with early revision 1294 * 21174 PCI chipsets, such as the AlphaPC 164lx 1295 */ 1296 TI_SETBIT(sc, TI_PCI_STATE, pci_writemax|TI_PCI_READMAX_1024); 1297 #else 1298 TI_SETBIT(sc, TI_PCI_STATE, pci_writemax); 1299 #endif 1300 1301 /* This sets the min dma param all the way up (0xff). */ 1302 TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_MINDMA); 1303 1304 /* Configure DMA variables. */ 1305 #if BYTE_ORDER == BIG_ENDIAN 1306 CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_BD | 1307 TI_OPMODE_BYTESWAP_DATA | TI_OPMODE_WORDSWAP_BD | 1308 TI_OPMODE_WARN_ENB | TI_OPMODE_FATAL_ENB | 1309 TI_OPMODE_DONT_FRAG_JUMBO); 1310 #else 1311 CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_DATA| 1312 TI_OPMODE_WORDSWAP_BD|TI_OPMODE_DONT_FRAG_JUMBO| 1313 TI_OPMODE_WARN_ENB|TI_OPMODE_FATAL_ENB); 1314 #endif 1315 1316 /* 1317 * Only allow 1 DMA channel to be active at a time. 1318 * I don't think this is a good idea, but without it 1319 * the firmware racks up lots of nicDmaReadRingFull 1320 * errors. This is not compatible with hardware checksums. 1321 */ 1322 if (sc->arpcom.ac_if.if_hwassist == 0) 1323 TI_SETBIT(sc, TI_GCR_OPMODE, TI_OPMODE_1_DMA_ACTIVE); 1324 1325 /* Recommended settings from Tigon manual. */ 1326 CSR_WRITE_4(sc, TI_GCR_DMA_WRITECFG, TI_DMA_STATE_THRESH_8W); 1327 CSR_WRITE_4(sc, TI_GCR_DMA_READCFG, TI_DMA_STATE_THRESH_8W); 1328 1329 if (ti_64bitslot_war(sc)) { 1330 printf("ti%d: bios thinks we're in a 64 bit slot, " 1331 "but we aren't", sc->ti_unit); 1332 return(EINVAL); 1333 } 1334 1335 return(0); 1336 } 1337 1338 /* 1339 * Initialize the general information block and firmware, and 1340 * start the CPU(s) running. 1341 */ 1342 static int ti_gibinit(sc) 1343 struct ti_softc *sc; 1344 { 1345 struct ti_rcb *rcb; 1346 int i; 1347 struct ifnet *ifp; 1348 1349 ifp = &sc->arpcom.ac_if; 1350 1351 /* Disable interrupts for now. */ 1352 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); 1353 1354 /* Tell the chip where to find the general information block. */ 1355 CSR_WRITE_4(sc, TI_GCR_GENINFO_HI, 0); 1356 CSR_WRITE_4(sc, TI_GCR_GENINFO_LO, vtophys(&sc->ti_rdata->ti_info)); 1357 1358 /* Load the firmware into SRAM. */ 1359 ti_loadfw(sc); 1360 1361 /* Set up the contents of the general info and ring control blocks. */ 1362 1363 /* Set up the event ring and producer pointer. */ 1364 rcb = &sc->ti_rdata->ti_info.ti_ev_rcb; 1365 1366 TI_HOSTADDR(rcb->ti_hostaddr) = vtophys(&sc->ti_rdata->ti_event_ring); 1367 rcb->ti_flags = 0; 1368 TI_HOSTADDR(sc->ti_rdata->ti_info.ti_ev_prodidx_ptr) = 1369 vtophys(&sc->ti_ev_prodidx); 1370 sc->ti_ev_prodidx.ti_idx = 0; 1371 CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, 0); 1372 sc->ti_ev_saved_considx = 0; 1373 1374 /* Set up the command ring and producer mailbox. */ 1375 rcb = &sc->ti_rdata->ti_info.ti_cmd_rcb; 1376 1377 sc->ti_rdata->ti_cmd_ring = 1378 (struct ti_cmd_desc *)(sc->ti_vhandle + TI_GCR_CMDRING); 1379 TI_HOSTADDR(rcb->ti_hostaddr) = TI_GCR_NIC_ADDR(TI_GCR_CMDRING); 1380 rcb->ti_flags = 0; 1381 rcb->ti_max_len = 0; 1382 for (i = 0; i < TI_CMD_RING_CNT; i++) { 1383 CSR_WRITE_4(sc, TI_GCR_CMDRING + (i * 4), 0); 1384 } 1385 CSR_WRITE_4(sc, TI_GCR_CMDCONS_IDX, 0); 1386 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, 0); 1387 sc->ti_cmd_saved_prodidx = 0; 1388 1389 /* 1390 * Assign the address of the stats refresh buffer. 1391 * We re-use the current stats buffer for this to 1392 * conserve memory. 1393 */ 1394 TI_HOSTADDR(sc->ti_rdata->ti_info.ti_refresh_stats_ptr) = 1395 vtophys(&sc->ti_rdata->ti_info.ti_stats); 1396 1397 /* Set up the standard receive ring. */ 1398 rcb = &sc->ti_rdata->ti_info.ti_std_rx_rcb; 1399 TI_HOSTADDR(rcb->ti_hostaddr) = vtophys(&sc->ti_rdata->ti_rx_std_ring); 1400 rcb->ti_max_len = TI_FRAMELEN; 1401 rcb->ti_flags = 0; 1402 if (sc->arpcom.ac_if.if_hwassist) 1403 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM | 1404 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; 1405 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; 1406 1407 /* Set up the jumbo receive ring. */ 1408 rcb = &sc->ti_rdata->ti_info.ti_jumbo_rx_rcb; 1409 TI_HOSTADDR(rcb->ti_hostaddr) = 1410 vtophys(&sc->ti_rdata->ti_rx_jumbo_ring); 1411 rcb->ti_max_len = TI_JUMBO_FRAMELEN; 1412 rcb->ti_flags = 0; 1413 if (sc->arpcom.ac_if.if_hwassist) 1414 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM | 1415 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; 1416 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; 1417 1418 /* 1419 * Set up the mini ring. Only activated on the 1420 * Tigon 2 but the slot in the config block is 1421 * still there on the Tigon 1. 1422 */ 1423 rcb = &sc->ti_rdata->ti_info.ti_mini_rx_rcb; 1424 TI_HOSTADDR(rcb->ti_hostaddr) = 1425 vtophys(&sc->ti_rdata->ti_rx_mini_ring); 1426 rcb->ti_max_len = MHLEN - ETHER_ALIGN; 1427 if (sc->ti_hwrev == TI_HWREV_TIGON) 1428 rcb->ti_flags = TI_RCB_FLAG_RING_DISABLED; 1429 else 1430 rcb->ti_flags = 0; 1431 if (sc->arpcom.ac_if.if_hwassist) 1432 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM | 1433 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; 1434 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; 1435 1436 /* 1437 * Set up the receive return ring. 1438 */ 1439 rcb = &sc->ti_rdata->ti_info.ti_return_rcb; 1440 TI_HOSTADDR(rcb->ti_hostaddr) = 1441 vtophys(&sc->ti_rdata->ti_rx_return_ring); 1442 rcb->ti_flags = 0; 1443 rcb->ti_max_len = TI_RETURN_RING_CNT; 1444 TI_HOSTADDR(sc->ti_rdata->ti_info.ti_return_prodidx_ptr) = 1445 vtophys(&sc->ti_return_prodidx); 1446 1447 /* 1448 * Set up the tx ring. Note: for the Tigon 2, we have the option 1449 * of putting the transmit ring in the host's address space and 1450 * letting the chip DMA it instead of leaving the ring in the NIC's 1451 * memory and accessing it through the shared memory region. We 1452 * do this for the Tigon 2, but it doesn't work on the Tigon 1, 1453 * so we have to revert to the shared memory scheme if we detect 1454 * a Tigon 1 chip. 1455 */ 1456 CSR_WRITE_4(sc, TI_WINBASE, TI_TX_RING_BASE); 1457 if (sc->ti_hwrev == TI_HWREV_TIGON) { 1458 sc->ti_rdata->ti_tx_ring_nic = 1459 (struct ti_tx_desc *)(sc->ti_vhandle + TI_WINDOW); 1460 } 1461 bzero((char *)sc->ti_rdata->ti_tx_ring, 1462 TI_TX_RING_CNT * sizeof(struct ti_tx_desc)); 1463 rcb = &sc->ti_rdata->ti_info.ti_tx_rcb; 1464 if (sc->ti_hwrev == TI_HWREV_TIGON) 1465 rcb->ti_flags = 0; 1466 else 1467 rcb->ti_flags = TI_RCB_FLAG_HOST_RING; 1468 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; 1469 if (sc->arpcom.ac_if.if_hwassist) 1470 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM | 1471 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; 1472 rcb->ti_max_len = TI_TX_RING_CNT; 1473 if (sc->ti_hwrev == TI_HWREV_TIGON) 1474 TI_HOSTADDR(rcb->ti_hostaddr) = TI_TX_RING_BASE; 1475 else 1476 TI_HOSTADDR(rcb->ti_hostaddr) = 1477 vtophys(&sc->ti_rdata->ti_tx_ring); 1478 TI_HOSTADDR(sc->ti_rdata->ti_info.ti_tx_considx_ptr) = 1479 vtophys(&sc->ti_tx_considx); 1480 1481 /* Set up tuneables */ 1482 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) 1483 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, 1484 (sc->ti_rx_coal_ticks / 10)); 1485 else 1486 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, sc->ti_rx_coal_ticks); 1487 CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS, sc->ti_tx_coal_ticks); 1488 CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks); 1489 CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD, sc->ti_rx_max_coal_bds); 1490 CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD, sc->ti_tx_max_coal_bds); 1491 CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO, sc->ti_tx_buf_ratio); 1492 1493 /* Turn interrupts on. */ 1494 CSR_WRITE_4(sc, TI_GCR_MASK_INTRS, 0); 1495 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); 1496 1497 /* Start CPU. */ 1498 TI_CLRBIT(sc, TI_CPU_STATE, (TI_CPUSTATE_HALT|TI_CPUSTATE_STEP)); 1499 1500 return(0); 1501 } 1502 1503 /* 1504 * Probe for a Tigon chip. Check the PCI vendor and device IDs 1505 * against our list and return its name if we find a match. 1506 */ 1507 static int ti_probe(dev) 1508 device_t dev; 1509 { 1510 struct ti_type *t; 1511 1512 t = ti_devs; 1513 1514 while(t->ti_name != NULL) { 1515 if ((pci_get_vendor(dev) == t->ti_vid) && 1516 (pci_get_device(dev) == t->ti_did)) { 1517 device_set_desc(dev, t->ti_name); 1518 return(0); 1519 } 1520 t++; 1521 } 1522 1523 return(ENXIO); 1524 } 1525 1526 static int ti_attach(dev) 1527 device_t dev; 1528 { 1529 int s; 1530 u_int32_t command; 1531 struct ifnet *ifp; 1532 struct ti_softc *sc; 1533 int unit, error = 0, rid; 1534 1535 s = splimp(); 1536 1537 sc = device_get_softc(dev); 1538 unit = device_get_unit(dev); 1539 bzero(sc, sizeof(struct ti_softc)); 1540 sc->arpcom.ac_if.if_capabilities = IFCAP_HWCSUM; 1541 sc->arpcom.ac_if.if_capenable = sc->arpcom.ac_if.if_capabilities; 1542 1543 /* 1544 * Map control/status registers. 1545 */ 1546 command = pci_read_config(dev, PCIR_COMMAND, 4); 1547 command |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 1548 pci_write_config(dev, PCIR_COMMAND, command, 4); 1549 command = pci_read_config(dev, PCIR_COMMAND, 4); 1550 1551 if (!(command & PCIM_CMD_MEMEN)) { 1552 printf("ti%d: failed to enable memory mapping!\n", unit); 1553 error = ENXIO; 1554 goto fail; 1555 } 1556 1557 rid = TI_PCI_LOMEM; 1558 sc->ti_res = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 1559 0, ~0, 1, RF_ACTIVE); 1560 1561 if (sc->ti_res == NULL) { 1562 printf ("ti%d: couldn't map memory\n", unit); 1563 error = ENXIO; 1564 goto fail; 1565 } 1566 1567 sc->ti_btag = rman_get_bustag(sc->ti_res); 1568 sc->ti_bhandle = rman_get_bushandle(sc->ti_res); 1569 sc->ti_vhandle = (vm_offset_t)rman_get_virtual(sc->ti_res); 1570 1571 /* 1572 * XXX FIXME: rman_get_virtual() on the alpha is currently 1573 * broken and returns a physical address instead of a kernel 1574 * virtual address. Consequently, we need to do a little 1575 * extra mangling of the vhandle on the alpha. This should 1576 * eventually be fixed! The whole idea here is to get rid 1577 * of platform dependencies. 1578 */ 1579 #ifdef __alpha__ 1580 if (pci_cvt_to_bwx(sc->ti_vhandle)) 1581 sc->ti_vhandle = pci_cvt_to_bwx(sc->ti_vhandle); 1582 else 1583 sc->ti_vhandle = pci_cvt_to_dense(sc->ti_vhandle); 1584 sc->ti_vhandle = ALPHA_PHYS_TO_K0SEG(sc->ti_vhandle); 1585 #endif 1586 1587 /* Allocate interrupt */ 1588 rid = 0; 1589 1590 sc->ti_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 1591 RF_SHAREABLE | RF_ACTIVE); 1592 1593 if (sc->ti_irq == NULL) { 1594 printf("ti%d: couldn't map interrupt\n", unit); 1595 error = ENXIO; 1596 goto fail; 1597 } 1598 1599 error = bus_setup_intr(dev, sc->ti_irq, INTR_TYPE_NET, 1600 ti_intr, sc, &sc->ti_intrhand); 1601 1602 if (error) { 1603 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq); 1604 bus_release_resource(dev, SYS_RES_MEMORY, 1605 TI_PCI_LOMEM, sc->ti_res); 1606 printf("ti%d: couldn't set up irq\n", unit); 1607 goto fail; 1608 } 1609 1610 sc->ti_unit = unit; 1611 1612 if (ti_chipinit(sc)) { 1613 printf("ti%d: chip initialization failed\n", sc->ti_unit); 1614 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand); 1615 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq); 1616 bus_release_resource(dev, SYS_RES_MEMORY, 1617 TI_PCI_LOMEM, sc->ti_res); 1618 error = ENXIO; 1619 goto fail; 1620 } 1621 1622 /* Zero out the NIC's on-board SRAM. */ 1623 ti_mem(sc, 0x2000, 0x100000 - 0x2000, NULL); 1624 1625 /* Init again -- zeroing memory may have clobbered some registers. */ 1626 if (ti_chipinit(sc)) { 1627 printf("ti%d: chip initialization failed\n", sc->ti_unit); 1628 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand); 1629 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq); 1630 bus_release_resource(dev, SYS_RES_MEMORY, 1631 TI_PCI_LOMEM, sc->ti_res); 1632 error = ENXIO; 1633 goto fail; 1634 } 1635 1636 /* 1637 * Get station address from the EEPROM. Note: the manual states 1638 * that the MAC address is at offset 0x8c, however the data is 1639 * stored as two longwords (since that's how it's loaded into 1640 * the NIC). This means the MAC address is actually preceeded 1641 * by two zero bytes. We need to skip over those. 1642 */ 1643 if (ti_read_eeprom(sc, (caddr_t)&sc->arpcom.ac_enaddr, 1644 TI_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { 1645 printf("ti%d: failed to read station address\n", unit); 1646 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand); 1647 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq); 1648 bus_release_resource(dev, SYS_RES_MEMORY, 1649 TI_PCI_LOMEM, sc->ti_res); 1650 error = ENXIO; 1651 goto fail; 1652 } 1653 1654 /* 1655 * A Tigon chip was detected. Inform the world. 1656 */ 1657 printf("ti%d: Ethernet address: %6D\n", unit, 1658 sc->arpcom.ac_enaddr, ":"); 1659 1660 /* Allocate the general information block and ring buffers. */ 1661 sc->ti_rdata = contigmalloc(sizeof(struct ti_ring_data), M_DEVBUF, 1662 M_NOWAIT, 0, 0xffffffff, PAGE_SIZE, 0); 1663 1664 if (sc->ti_rdata == NULL) { 1665 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand); 1666 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq); 1667 bus_release_resource(dev, SYS_RES_MEMORY, 1668 TI_PCI_LOMEM, sc->ti_res); 1669 error = ENXIO; 1670 printf("ti%d: no memory for list buffers!\n", sc->ti_unit); 1671 goto fail; 1672 } 1673 1674 bzero(sc->ti_rdata, sizeof(struct ti_ring_data)); 1675 1676 /* Try to allocate memory for jumbo buffers. */ 1677 if (ti_alloc_jumbo_mem(sc)) { 1678 printf("ti%d: jumbo buffer allocation failed\n", sc->ti_unit); 1679 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand); 1680 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq); 1681 bus_release_resource(dev, SYS_RES_MEMORY, 1682 TI_PCI_LOMEM, sc->ti_res); 1683 contigfree(sc->ti_rdata, sizeof(struct ti_ring_data), 1684 M_DEVBUF); 1685 error = ENXIO; 1686 goto fail; 1687 } 1688 1689 /* 1690 * We really need a better way to tell a 1000baseTX card 1691 * from a 1000baseSX one, since in theory there could be 1692 * OEMed 1000baseTX cards from lame vendors who aren't 1693 * clever enough to change the PCI ID. For the moment 1694 * though, the AceNIC is the only copper card available. 1695 */ 1696 if (pci_get_vendor(dev) == ALT_VENDORID && 1697 pci_get_device(dev) == ALT_DEVICEID_ACENIC_COPPER) 1698 sc->ti_copper = 1; 1699 /* Ok, it's not the only copper card available. */ 1700 if (pci_get_vendor(dev) == NG_VENDORID && 1701 pci_get_device(dev) == NG_DEVICEID_GA620T) 1702 sc->ti_copper = 1; 1703 1704 /* Set default tuneable values. */ 1705 sc->ti_stat_ticks = 2 * TI_TICKS_PER_SEC; 1706 sc->ti_rx_coal_ticks = TI_TICKS_PER_SEC / 5000; 1707 sc->ti_tx_coal_ticks = TI_TICKS_PER_SEC / 500; 1708 sc->ti_rx_max_coal_bds = 64; 1709 sc->ti_tx_max_coal_bds = 128; 1710 sc->ti_tx_buf_ratio = 21; 1711 1712 /* Set up ifnet structure */ 1713 ifp = &sc->arpcom.ac_if; 1714 ifp->if_softc = sc; 1715 ifp->if_unit = sc->ti_unit; 1716 ifp->if_name = "ti"; 1717 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 1718 ifp->if_ioctl = ti_ioctl; 1719 ifp->if_output = ether_output; 1720 ifp->if_start = ti_start; 1721 ifp->if_watchdog = ti_watchdog; 1722 ifp->if_init = ti_init; 1723 ifp->if_mtu = ETHERMTU; 1724 ifp->if_snd.ifq_maxlen = TI_TX_RING_CNT - 1; 1725 1726 /* Set up ifmedia support. */ 1727 ifmedia_init(&sc->ifmedia, IFM_IMASK, ti_ifmedia_upd, ti_ifmedia_sts); 1728 if (sc->ti_copper) { 1729 /* 1730 * Copper cards allow manual 10/100 mode selection, 1731 * but not manual 1000baseTX mode selection. Why? 1732 * Becuase currently there's no way to specify the 1733 * master/slave setting through the firmware interface, 1734 * so Alteon decided to just bag it and handle it 1735 * via autonegotiation. 1736 */ 1737 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL); 1738 ifmedia_add(&sc->ifmedia, 1739 IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); 1740 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL); 1741 ifmedia_add(&sc->ifmedia, 1742 IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL); 1743 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_TX, 0, NULL); 1744 ifmedia_add(&sc->ifmedia, 1745 IFM_ETHER|IFM_1000_TX|IFM_FDX, 0, NULL); 1746 } else { 1747 /* Fiber cards don't support 10/100 modes. */ 1748 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL); 1749 ifmedia_add(&sc->ifmedia, 1750 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL); 1751 } 1752 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); 1753 ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO); 1754 1755 /* 1756 * Call MI attach routine. 1757 */ 1758 ether_ifattach(ifp, ETHER_BPF_SUPPORTED); 1759 1760 fail: 1761 splx(s); 1762 1763 return(error); 1764 } 1765 1766 static int ti_detach(dev) 1767 device_t dev; 1768 { 1769 struct ti_softc *sc; 1770 struct ifnet *ifp; 1771 int s; 1772 1773 s = splimp(); 1774 1775 sc = device_get_softc(dev); 1776 ifp = &sc->arpcom.ac_if; 1777 1778 ether_ifdetach(ifp, ETHER_BPF_SUPPORTED); 1779 ti_stop(sc); 1780 1781 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand); 1782 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq); 1783 bus_release_resource(dev, SYS_RES_MEMORY, TI_PCI_LOMEM, sc->ti_res); 1784 1785 contigfree(sc->ti_cdata.ti_jumbo_buf, TI_JMEM, M_DEVBUF); 1786 contigfree(sc->ti_rdata, sizeof(struct ti_ring_data), M_DEVBUF); 1787 ifmedia_removeall(&sc->ifmedia); 1788 1789 splx(s); 1790 1791 return(0); 1792 } 1793 1794 /* 1795 * Frame reception handling. This is called if there's a frame 1796 * on the receive return list. 1797 * 1798 * Note: we have to be able to handle three possibilities here: 1799 * 1) the frame is from the mini receive ring (can only happen) 1800 * on Tigon 2 boards) 1801 * 2) the frame is from the jumbo recieve ring 1802 * 3) the frame is from the standard receive ring 1803 */ 1804 1805 static void ti_rxeof(sc) 1806 struct ti_softc *sc; 1807 { 1808 struct ifnet *ifp; 1809 struct ti_cmd_desc cmd; 1810 1811 ifp = &sc->arpcom.ac_if; 1812 1813 while(sc->ti_rx_saved_considx != sc->ti_return_prodidx.ti_idx) { 1814 struct ti_rx_desc *cur_rx; 1815 u_int32_t rxidx; 1816 struct ether_header *eh; 1817 struct mbuf *m = NULL; 1818 u_int16_t vlan_tag = 0; 1819 int have_tag = 0; 1820 1821 cur_rx = 1822 &sc->ti_rdata->ti_rx_return_ring[sc->ti_rx_saved_considx]; 1823 rxidx = cur_rx->ti_idx; 1824 TI_INC(sc->ti_rx_saved_considx, TI_RETURN_RING_CNT); 1825 1826 if (cur_rx->ti_flags & TI_BDFLAG_VLAN_TAG) { 1827 have_tag = 1; 1828 vlan_tag = cur_rx->ti_vlan_tag & 0xfff; 1829 } 1830 1831 if (cur_rx->ti_flags & TI_BDFLAG_JUMBO_RING) { 1832 TI_INC(sc->ti_jumbo, TI_JUMBO_RX_RING_CNT); 1833 m = sc->ti_cdata.ti_rx_jumbo_chain[rxidx]; 1834 sc->ti_cdata.ti_rx_jumbo_chain[rxidx] = NULL; 1835 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { 1836 ifp->if_ierrors++; 1837 ti_newbuf_jumbo(sc, sc->ti_jumbo, m); 1838 continue; 1839 } 1840 if (ti_newbuf_jumbo(sc, sc->ti_jumbo, NULL) == ENOBUFS) { 1841 ifp->if_ierrors++; 1842 ti_newbuf_jumbo(sc, sc->ti_jumbo, m); 1843 continue; 1844 } 1845 } else if (cur_rx->ti_flags & TI_BDFLAG_MINI_RING) { 1846 TI_INC(sc->ti_mini, TI_MINI_RX_RING_CNT); 1847 m = sc->ti_cdata.ti_rx_mini_chain[rxidx]; 1848 sc->ti_cdata.ti_rx_mini_chain[rxidx] = NULL; 1849 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { 1850 ifp->if_ierrors++; 1851 ti_newbuf_mini(sc, sc->ti_mini, m); 1852 continue; 1853 } 1854 if (ti_newbuf_mini(sc, sc->ti_mini, NULL) == ENOBUFS) { 1855 ifp->if_ierrors++; 1856 ti_newbuf_mini(sc, sc->ti_mini, m); 1857 continue; 1858 } 1859 } else { 1860 TI_INC(sc->ti_std, TI_STD_RX_RING_CNT); 1861 m = sc->ti_cdata.ti_rx_std_chain[rxidx]; 1862 sc->ti_cdata.ti_rx_std_chain[rxidx] = NULL; 1863 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { 1864 ifp->if_ierrors++; 1865 ti_newbuf_std(sc, sc->ti_std, m); 1866 continue; 1867 } 1868 if (ti_newbuf_std(sc, sc->ti_std, NULL) == ENOBUFS) { 1869 ifp->if_ierrors++; 1870 ti_newbuf_std(sc, sc->ti_std, m); 1871 continue; 1872 } 1873 } 1874 1875 m->m_pkthdr.len = m->m_len = cur_rx->ti_len; 1876 ifp->if_ipackets++; 1877 eh = mtod(m, struct ether_header *); 1878 m->m_pkthdr.rcvif = ifp; 1879 1880 /* Remove header from mbuf and pass it on. */ 1881 m_adj(m, sizeof(struct ether_header)); 1882 1883 if (ifp->if_hwassist) { 1884 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED | 1885 CSUM_DATA_VALID; 1886 if ((cur_rx->ti_ip_cksum ^ 0xffff) == 0) 1887 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 1888 m->m_pkthdr.csum_data = cur_rx->ti_tcp_udp_cksum; 1889 } 1890 1891 /* 1892 * If we received a packet with a vlan tag, pass it 1893 * to vlan_input() instead of ether_input(). 1894 */ 1895 if (have_tag) { 1896 VLAN_INPUT_TAG(eh, m, vlan_tag); 1897 have_tag = vlan_tag = 0; 1898 continue; 1899 } 1900 ether_input(ifp, eh, m); 1901 } 1902 1903 /* Only necessary on the Tigon 1. */ 1904 if (sc->ti_hwrev == TI_HWREV_TIGON) 1905 CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, 1906 sc->ti_rx_saved_considx); 1907 1908 TI_UPDATE_STDPROD(sc, sc->ti_std); 1909 TI_UPDATE_MINIPROD(sc, sc->ti_mini); 1910 TI_UPDATE_JUMBOPROD(sc, sc->ti_jumbo); 1911 1912 return; 1913 } 1914 1915 static void ti_txeof(sc) 1916 struct ti_softc *sc; 1917 { 1918 struct ti_tx_desc *cur_tx = NULL; 1919 struct ifnet *ifp; 1920 1921 ifp = &sc->arpcom.ac_if; 1922 1923 /* 1924 * Go through our tx ring and free mbufs for those 1925 * frames that have been sent. 1926 */ 1927 while (sc->ti_tx_saved_considx != sc->ti_tx_considx.ti_idx) { 1928 u_int32_t idx = 0; 1929 1930 idx = sc->ti_tx_saved_considx; 1931 if (sc->ti_hwrev == TI_HWREV_TIGON) { 1932 if (idx > 383) 1933 CSR_WRITE_4(sc, TI_WINBASE, 1934 TI_TX_RING_BASE + 6144); 1935 else if (idx > 255) 1936 CSR_WRITE_4(sc, TI_WINBASE, 1937 TI_TX_RING_BASE + 4096); 1938 else if (idx > 127) 1939 CSR_WRITE_4(sc, TI_WINBASE, 1940 TI_TX_RING_BASE + 2048); 1941 else 1942 CSR_WRITE_4(sc, TI_WINBASE, 1943 TI_TX_RING_BASE); 1944 cur_tx = &sc->ti_rdata->ti_tx_ring_nic[idx % 128]; 1945 } else 1946 cur_tx = &sc->ti_rdata->ti_tx_ring[idx]; 1947 if (cur_tx->ti_flags & TI_BDFLAG_END) 1948 ifp->if_opackets++; 1949 if (sc->ti_cdata.ti_tx_chain[idx] != NULL) { 1950 m_freem(sc->ti_cdata.ti_tx_chain[idx]); 1951 sc->ti_cdata.ti_tx_chain[idx] = NULL; 1952 } 1953 sc->ti_txcnt--; 1954 TI_INC(sc->ti_tx_saved_considx, TI_TX_RING_CNT); 1955 ifp->if_timer = 0; 1956 } 1957 1958 if (cur_tx != NULL) 1959 ifp->if_flags &= ~IFF_OACTIVE; 1960 1961 return; 1962 } 1963 1964 static void ti_intr(xsc) 1965 void *xsc; 1966 { 1967 struct ti_softc *sc; 1968 struct ifnet *ifp; 1969 1970 sc = xsc; 1971 ifp = &sc->arpcom.ac_if; 1972 1973 #ifdef notdef 1974 /* Avoid this for now -- checking this register is expensive. */ 1975 /* Make sure this is really our interrupt. */ 1976 if (!(CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_INTSTATE)) 1977 return; 1978 #endif 1979 1980 /* Ack interrupt and stop others from occuring. */ 1981 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); 1982 1983 if (ifp->if_flags & IFF_RUNNING) { 1984 /* Check RX return ring producer/consumer */ 1985 ti_rxeof(sc); 1986 1987 /* Check TX ring producer/consumer */ 1988 ti_txeof(sc); 1989 } 1990 1991 ti_handle_events(sc); 1992 1993 /* Re-enable interrupts. */ 1994 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); 1995 1996 if (ifp->if_flags & IFF_RUNNING && ifp->if_snd.ifq_head != NULL) 1997 ti_start(ifp); 1998 1999 return; 2000 } 2001 2002 static void ti_stats_update(sc) 2003 struct ti_softc *sc; 2004 { 2005 struct ifnet *ifp; 2006 2007 ifp = &sc->arpcom.ac_if; 2008 2009 ifp->if_collisions += 2010 (sc->ti_rdata->ti_info.ti_stats.dot3StatsSingleCollisionFrames + 2011 sc->ti_rdata->ti_info.ti_stats.dot3StatsMultipleCollisionFrames + 2012 sc->ti_rdata->ti_info.ti_stats.dot3StatsExcessiveCollisions + 2013 sc->ti_rdata->ti_info.ti_stats.dot3StatsLateCollisions) - 2014 ifp->if_collisions; 2015 2016 return; 2017 } 2018 2019 /* 2020 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data 2021 * pointers to descriptors. 2022 */ 2023 static int ti_encap(sc, m_head, txidx) 2024 struct ti_softc *sc; 2025 struct mbuf *m_head; 2026 u_int32_t *txidx; 2027 { 2028 struct ti_tx_desc *f = NULL; 2029 struct mbuf *m; 2030 u_int32_t frag, cur, cnt = 0; 2031 u_int16_t csum_flags = 0; 2032 struct ifvlan *ifv = NULL; 2033 2034 if ((m_head->m_flags & (M_PROTO1|M_PKTHDR)) == (M_PROTO1|M_PKTHDR) && 2035 m_head->m_pkthdr.rcvif != NULL && 2036 m_head->m_pkthdr.rcvif->if_type == IFT_L2VLAN) 2037 ifv = m_head->m_pkthdr.rcvif->if_softc; 2038 2039 m = m_head; 2040 cur = frag = *txidx; 2041 2042 if (m_head->m_pkthdr.csum_flags) { 2043 if (m_head->m_pkthdr.csum_flags & CSUM_IP) 2044 csum_flags |= TI_BDFLAG_IP_CKSUM; 2045 if (m_head->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP)) 2046 csum_flags |= TI_BDFLAG_TCP_UDP_CKSUM; 2047 if (m_head->m_flags & M_LASTFRAG) 2048 csum_flags |= TI_BDFLAG_IP_FRAG_END; 2049 else if (m_head->m_flags & M_FRAG) 2050 csum_flags |= TI_BDFLAG_IP_FRAG; 2051 } 2052 /* 2053 * Start packing the mbufs in this chain into 2054 * the fragment pointers. Stop when we run out 2055 * of fragments or hit the end of the mbuf chain. 2056 */ 2057 for (m = m_head; m != NULL; m = m->m_next) { 2058 if (m->m_len != 0) { 2059 if (sc->ti_hwrev == TI_HWREV_TIGON) { 2060 if (frag > 383) 2061 CSR_WRITE_4(sc, TI_WINBASE, 2062 TI_TX_RING_BASE + 6144); 2063 else if (frag > 255) 2064 CSR_WRITE_4(sc, TI_WINBASE, 2065 TI_TX_RING_BASE + 4096); 2066 else if (frag > 127) 2067 CSR_WRITE_4(sc, TI_WINBASE, 2068 TI_TX_RING_BASE + 2048); 2069 else 2070 CSR_WRITE_4(sc, TI_WINBASE, 2071 TI_TX_RING_BASE); 2072 f = &sc->ti_rdata->ti_tx_ring_nic[frag % 128]; 2073 } else 2074 f = &sc->ti_rdata->ti_tx_ring[frag]; 2075 if (sc->ti_cdata.ti_tx_chain[frag] != NULL) 2076 break; 2077 TI_HOSTADDR(f->ti_addr) = vtophys(mtod(m, vm_offset_t)); 2078 f->ti_len = m->m_len; 2079 f->ti_flags = csum_flags; 2080 2081 if (ifv != NULL) { 2082 f->ti_flags |= TI_BDFLAG_VLAN_TAG; 2083 f->ti_vlan_tag = ifv->ifv_tag & 0xfff; 2084 } else { 2085 f->ti_vlan_tag = 0; 2086 } 2087 2088 /* 2089 * Sanity check: avoid coming within 16 descriptors 2090 * of the end of the ring. 2091 */ 2092 if ((TI_TX_RING_CNT - (sc->ti_txcnt + cnt)) < 16) 2093 return(ENOBUFS); 2094 cur = frag; 2095 TI_INC(frag, TI_TX_RING_CNT); 2096 cnt++; 2097 } 2098 } 2099 2100 if (m != NULL) 2101 return(ENOBUFS); 2102 2103 if (frag == sc->ti_tx_saved_considx) 2104 return(ENOBUFS); 2105 2106 if (sc->ti_hwrev == TI_HWREV_TIGON) 2107 sc->ti_rdata->ti_tx_ring_nic[cur % 128].ti_flags |= 2108 TI_BDFLAG_END; 2109 else 2110 sc->ti_rdata->ti_tx_ring[cur].ti_flags |= TI_BDFLAG_END; 2111 sc->ti_cdata.ti_tx_chain[cur] = m_head; 2112 sc->ti_txcnt += cnt; 2113 2114 *txidx = frag; 2115 2116 return(0); 2117 } 2118 2119 /* 2120 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 2121 * to the mbuf data regions directly in the transmit descriptors. 2122 */ 2123 static void ti_start(ifp) 2124 struct ifnet *ifp; 2125 { 2126 struct ti_softc *sc; 2127 struct mbuf *m_head = NULL; 2128 u_int32_t prodidx = 0; 2129 2130 sc = ifp->if_softc; 2131 2132 prodidx = CSR_READ_4(sc, TI_MB_SENDPROD_IDX); 2133 2134 while(sc->ti_cdata.ti_tx_chain[prodidx] == NULL) { 2135 IF_DEQUEUE(&ifp->if_snd, m_head); 2136 if (m_head == NULL) 2137 break; 2138 2139 /* 2140 * XXX 2141 * safety overkill. If this is a fragmented packet chain 2142 * with delayed TCP/UDP checksums, then only encapsulate 2143 * it if we have enough descriptors to handle the entire 2144 * chain at once. 2145 * (paranoia -- may not actually be needed) 2146 */ 2147 if (m_head->m_flags & M_FIRSTFRAG && 2148 m_head->m_pkthdr.csum_flags & (CSUM_DELAY_DATA)) { 2149 if ((TI_TX_RING_CNT - sc->ti_txcnt) < 2150 m_head->m_pkthdr.csum_data + 16) { 2151 IF_PREPEND(&ifp->if_snd, m_head); 2152 ifp->if_flags |= IFF_OACTIVE; 2153 break; 2154 } 2155 } 2156 2157 /* 2158 * Pack the data into the transmit ring. If we 2159 * don't have room, set the OACTIVE flag and wait 2160 * for the NIC to drain the ring. 2161 */ 2162 if (ti_encap(sc, m_head, &prodidx)) { 2163 IF_PREPEND(&ifp->if_snd, m_head); 2164 ifp->if_flags |= IFF_OACTIVE; 2165 break; 2166 } 2167 2168 /* 2169 * If there's a BPF listener, bounce a copy of this frame 2170 * to him. 2171 */ 2172 if (ifp->if_bpf) 2173 bpf_mtap(ifp, m_head); 2174 } 2175 2176 /* Transmit */ 2177 CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, prodidx); 2178 2179 /* 2180 * Set a timeout in case the chip goes out to lunch. 2181 */ 2182 ifp->if_timer = 5; 2183 2184 return; 2185 } 2186 2187 static void ti_init(xsc) 2188 void *xsc; 2189 { 2190 struct ti_softc *sc = xsc; 2191 int s; 2192 2193 s = splimp(); 2194 2195 /* Cancel pending I/O and flush buffers. */ 2196 ti_stop(sc); 2197 2198 /* Init the gen info block, ring control blocks and firmware. */ 2199 if (ti_gibinit(sc)) { 2200 printf("ti%d: initialization failure\n", sc->ti_unit); 2201 splx(s); 2202 return; 2203 } 2204 2205 splx(s); 2206 2207 return; 2208 } 2209 2210 static void ti_init2(sc) 2211 struct ti_softc *sc; 2212 { 2213 struct ti_cmd_desc cmd; 2214 struct ifnet *ifp; 2215 u_int16_t *m; 2216 struct ifmedia *ifm; 2217 int tmp; 2218 2219 ifp = &sc->arpcom.ac_if; 2220 2221 /* Specify MTU and interface index. */ 2222 CSR_WRITE_4(sc, TI_GCR_IFINDEX, ifp->if_unit); 2223 CSR_WRITE_4(sc, TI_GCR_IFMTU, ifp->if_mtu + 2224 ETHER_HDR_LEN + ETHER_CRC_LEN); 2225 TI_DO_CMD(TI_CMD_UPDATE_GENCOM, 0, 0); 2226 2227 /* Load our MAC address. */ 2228 m = (u_int16_t *)&sc->arpcom.ac_enaddr[0]; 2229 CSR_WRITE_4(sc, TI_GCR_PAR0, htons(m[0])); 2230 CSR_WRITE_4(sc, TI_GCR_PAR1, (htons(m[1]) << 16) | htons(m[2])); 2231 TI_DO_CMD(TI_CMD_SET_MAC_ADDR, 0, 0); 2232 2233 /* Enable or disable promiscuous mode as needed. */ 2234 if (ifp->if_flags & IFF_PROMISC) { 2235 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_ENB, 0); 2236 } else { 2237 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_DIS, 0); 2238 } 2239 2240 /* Program multicast filter. */ 2241 ti_setmulti(sc); 2242 2243 /* 2244 * If this is a Tigon 1, we should tell the 2245 * firmware to use software packet filtering. 2246 */ 2247 if (sc->ti_hwrev == TI_HWREV_TIGON) { 2248 TI_DO_CMD(TI_CMD_FDR_FILTERING, TI_CMD_CODE_FILT_ENB, 0); 2249 } 2250 2251 /* Init RX ring. */ 2252 ti_init_rx_ring_std(sc); 2253 2254 /* Init jumbo RX ring. */ 2255 if (ifp->if_mtu > (ETHERMTU + ETHER_HDR_LEN + ETHER_CRC_LEN)) 2256 ti_init_rx_ring_jumbo(sc); 2257 2258 /* 2259 * If this is a Tigon 2, we can also configure the 2260 * mini ring. 2261 */ 2262 if (sc->ti_hwrev == TI_HWREV_TIGON_II) 2263 ti_init_rx_ring_mini(sc); 2264 2265 CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, 0); 2266 sc->ti_rx_saved_considx = 0; 2267 2268 /* Init TX ring. */ 2269 ti_init_tx_ring(sc); 2270 2271 /* Tell firmware we're alive. */ 2272 TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_UP, 0); 2273 2274 /* Enable host interrupts. */ 2275 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); 2276 2277 ifp->if_flags |= IFF_RUNNING; 2278 ifp->if_flags &= ~IFF_OACTIVE; 2279 2280 /* 2281 * Make sure to set media properly. We have to do this 2282 * here since we have to issue commands in order to set 2283 * the link negotiation and we can't issue commands until 2284 * the firmware is running. 2285 */ 2286 ifm = &sc->ifmedia; 2287 tmp = ifm->ifm_media; 2288 ifm->ifm_media = ifm->ifm_cur->ifm_media; 2289 ti_ifmedia_upd(ifp); 2290 ifm->ifm_media = tmp; 2291 2292 return; 2293 } 2294 2295 /* 2296 * Set media options. 2297 */ 2298 static int ti_ifmedia_upd(ifp) 2299 struct ifnet *ifp; 2300 { 2301 struct ti_softc *sc; 2302 struct ifmedia *ifm; 2303 struct ti_cmd_desc cmd; 2304 2305 sc = ifp->if_softc; 2306 ifm = &sc->ifmedia; 2307 2308 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 2309 return(EINVAL); 2310 2311 switch(IFM_SUBTYPE(ifm->ifm_media)) { 2312 case IFM_AUTO: 2313 CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB| 2314 TI_GLNK_FULL_DUPLEX|TI_GLNK_RX_FLOWCTL_Y| 2315 TI_GLNK_AUTONEGENB|TI_GLNK_ENB); 2316 CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_100MB|TI_LNK_10MB| 2317 TI_LNK_FULL_DUPLEX|TI_LNK_HALF_DUPLEX| 2318 TI_LNK_AUTONEGENB|TI_LNK_ENB); 2319 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, 2320 TI_CMD_CODE_NEGOTIATE_BOTH, 0); 2321 break; 2322 case IFM_1000_SX: 2323 case IFM_1000_TX: 2324 CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB| 2325 TI_GLNK_RX_FLOWCTL_Y|TI_GLNK_ENB); 2326 CSR_WRITE_4(sc, TI_GCR_LINK, 0); 2327 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { 2328 TI_SETBIT(sc, TI_GCR_GLINK, TI_GLNK_FULL_DUPLEX); 2329 } 2330 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, 2331 TI_CMD_CODE_NEGOTIATE_GIGABIT, 0); 2332 break; 2333 case IFM_100_FX: 2334 case IFM_10_FL: 2335 case IFM_100_TX: 2336 case IFM_10_T: 2337 CSR_WRITE_4(sc, TI_GCR_GLINK, 0); 2338 CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_ENB|TI_LNK_PREF); 2339 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_FX || 2340 IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) { 2341 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_100MB); 2342 } else { 2343 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_10MB); 2344 } 2345 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { 2346 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_FULL_DUPLEX); 2347 } else { 2348 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_HALF_DUPLEX); 2349 } 2350 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, 2351 TI_CMD_CODE_NEGOTIATE_10_100, 0); 2352 break; 2353 } 2354 2355 return(0); 2356 } 2357 2358 /* 2359 * Report current media status. 2360 */ 2361 static void ti_ifmedia_sts(ifp, ifmr) 2362 struct ifnet *ifp; 2363 struct ifmediareq *ifmr; 2364 { 2365 struct ti_softc *sc; 2366 u_int32_t media = 0; 2367 2368 sc = ifp->if_softc; 2369 2370 ifmr->ifm_status = IFM_AVALID; 2371 ifmr->ifm_active = IFM_ETHER; 2372 2373 if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN) 2374 return; 2375 2376 ifmr->ifm_status |= IFM_ACTIVE; 2377 2378 if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP) { 2379 media = CSR_READ_4(sc, TI_GCR_GLINK_STAT); 2380 if (sc->ti_copper) 2381 ifmr->ifm_active |= IFM_1000_TX; 2382 else 2383 ifmr->ifm_active |= IFM_1000_SX; 2384 if (media & TI_GLNK_FULL_DUPLEX) 2385 ifmr->ifm_active |= IFM_FDX; 2386 else 2387 ifmr->ifm_active |= IFM_HDX; 2388 } else if (sc->ti_linkstat == TI_EV_CODE_LINK_UP) { 2389 media = CSR_READ_4(sc, TI_GCR_LINK_STAT); 2390 if (sc->ti_copper) { 2391 if (media & TI_LNK_100MB) 2392 ifmr->ifm_active |= IFM_100_TX; 2393 if (media & TI_LNK_10MB) 2394 ifmr->ifm_active |= IFM_10_T; 2395 } else { 2396 if (media & TI_LNK_100MB) 2397 ifmr->ifm_active |= IFM_100_FX; 2398 if (media & TI_LNK_10MB) 2399 ifmr->ifm_active |= IFM_10_FL; 2400 } 2401 if (media & TI_LNK_FULL_DUPLEX) 2402 ifmr->ifm_active |= IFM_FDX; 2403 if (media & TI_LNK_HALF_DUPLEX) 2404 ifmr->ifm_active |= IFM_HDX; 2405 } 2406 2407 return; 2408 } 2409 2410 static int ti_ioctl(ifp, command, data) 2411 struct ifnet *ifp; 2412 u_long command; 2413 caddr_t data; 2414 { 2415 struct ti_softc *sc = ifp->if_softc; 2416 struct ifreq *ifr = (struct ifreq *) data; 2417 int s, mask, error = 0; 2418 struct ti_cmd_desc cmd; 2419 2420 s = splimp(); 2421 2422 switch(command) { 2423 case SIOCSIFADDR: 2424 case SIOCGIFADDR: 2425 error = ether_ioctl(ifp, command, data); 2426 break; 2427 case SIOCSIFMTU: 2428 if (ifr->ifr_mtu > TI_JUMBO_MTU) 2429 error = EINVAL; 2430 else { 2431 ifp->if_mtu = ifr->ifr_mtu; 2432 ti_init(sc); 2433 } 2434 break; 2435 case SIOCSIFFLAGS: 2436 if (ifp->if_flags & IFF_UP) { 2437 /* 2438 * If only the state of the PROMISC flag changed, 2439 * then just use the 'set promisc mode' command 2440 * instead of reinitializing the entire NIC. Doing 2441 * a full re-init means reloading the firmware and 2442 * waiting for it to start up, which may take a 2443 * second or two. 2444 */ 2445 if (ifp->if_flags & IFF_RUNNING && 2446 ifp->if_flags & IFF_PROMISC && 2447 !(sc->ti_if_flags & IFF_PROMISC)) { 2448 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, 2449 TI_CMD_CODE_PROMISC_ENB, 0); 2450 } else if (ifp->if_flags & IFF_RUNNING && 2451 !(ifp->if_flags & IFF_PROMISC) && 2452 sc->ti_if_flags & IFF_PROMISC) { 2453 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, 2454 TI_CMD_CODE_PROMISC_DIS, 0); 2455 } else 2456 ti_init(sc); 2457 } else { 2458 if (ifp->if_flags & IFF_RUNNING) { 2459 ti_stop(sc); 2460 } 2461 } 2462 sc->ti_if_flags = ifp->if_flags; 2463 error = 0; 2464 break; 2465 case SIOCADDMULTI: 2466 case SIOCDELMULTI: 2467 if (ifp->if_flags & IFF_RUNNING) { 2468 ti_setmulti(sc); 2469 error = 0; 2470 } 2471 break; 2472 case SIOCSIFMEDIA: 2473 case SIOCGIFMEDIA: 2474 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command); 2475 break; 2476 case SIOCSIFCAP: 2477 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 2478 if (mask & IFCAP_HWCSUM) { 2479 if (IFCAP_HWCSUM & ifp->if_capenable) 2480 ifp->if_capenable &= ~IFCAP_HWCSUM; 2481 else 2482 ifp->if_capenable |= IFCAP_HWCSUM; 2483 if (ifp->if_flags & IFF_RUNNING) 2484 ti_init(sc); 2485 } 2486 error = 0; 2487 break; 2488 default: 2489 error = EINVAL; 2490 break; 2491 } 2492 2493 (void)splx(s); 2494 2495 return(error); 2496 } 2497 2498 static void ti_watchdog(ifp) 2499 struct ifnet *ifp; 2500 { 2501 struct ti_softc *sc; 2502 2503 sc = ifp->if_softc; 2504 2505 printf("ti%d: watchdog timeout -- resetting\n", sc->ti_unit); 2506 ti_stop(sc); 2507 ti_init(sc); 2508 2509 ifp->if_oerrors++; 2510 2511 return; 2512 } 2513 2514 /* 2515 * Stop the adapter and free any mbufs allocated to the 2516 * RX and TX lists. 2517 */ 2518 static void ti_stop(sc) 2519 struct ti_softc *sc; 2520 { 2521 struct ifnet *ifp; 2522 struct ti_cmd_desc cmd; 2523 2524 ifp = &sc->arpcom.ac_if; 2525 2526 /* Disable host interrupts. */ 2527 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); 2528 /* 2529 * Tell firmware we're shutting down. 2530 */ 2531 TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_DOWN, 0); 2532 2533 /* Halt and reinitialize. */ 2534 ti_chipinit(sc); 2535 ti_mem(sc, 0x2000, 0x100000 - 0x2000, NULL); 2536 ti_chipinit(sc); 2537 2538 /* Free the RX lists. */ 2539 ti_free_rx_ring_std(sc); 2540 2541 /* Free jumbo RX list. */ 2542 ti_free_rx_ring_jumbo(sc); 2543 2544 /* Free mini RX list. */ 2545 ti_free_rx_ring_mini(sc); 2546 2547 /* Free TX buffers. */ 2548 ti_free_tx_ring(sc); 2549 2550 sc->ti_ev_prodidx.ti_idx = 0; 2551 sc->ti_return_prodidx.ti_idx = 0; 2552 sc->ti_tx_considx.ti_idx = 0; 2553 sc->ti_tx_saved_considx = TI_TXCONS_UNSET; 2554 2555 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 2556 2557 return; 2558 } 2559 2560 /* 2561 * Stop all chip I/O so that the kernel's probe routines don't 2562 * get confused by errant DMAs when rebooting. 2563 */ 2564 static void ti_shutdown(dev) 2565 device_t dev; 2566 { 2567 struct ti_softc *sc; 2568 2569 sc = device_get_softc(dev); 2570 2571 ti_chipinit(sc); 2572 2573 return; 2574 } 2575