Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/ti/if_ti.c
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1 /*- 2 * SPDX-License-Identifier: BSD-4-Clause 3 * 4 * Copyright (c) 1997, 1998, 1999 5 * Bill Paul <wpaul@ctr.columbia.edu>. All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 1. Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * 2. Redistributions in binary form must reproduce the above copyright 13 * notice, this list of conditions and the following disclaimer in the 14 * documentation and/or other materials provided with the distribution. 15 * 3. All advertising materials mentioning features or use of this software 16 * must display the following acknowledgement: 17 * This product includes software developed by Bill Paul. 18 * 4. Neither the name of the author nor the names of any co-contributors 19 * may be used to endorse or promote products derived from this software 20 * without specific prior written permission. 21 * 22 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 23 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 24 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 25 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 26 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 27 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 28 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 29 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 30 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 31 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 32 * THE POSSIBILITY OF SUCH DAMAGE. 33 */ 34 35 /* 36 * Alteon Networks Tigon PCI gigabit ethernet driver for FreeBSD. 37 * Manuals, sample driver and firmware source kits are available 38 * from http://www.alteon.com/support/openkits. 39 * 40 * Written by Bill Paul <wpaul@ctr.columbia.edu> 41 * Electrical Engineering Department 42 * Columbia University, New York City 43 */ 44 45 /* 46 * The Alteon Networks Tigon chip contains an embedded R4000 CPU, 47 * gigabit MAC, dual DMA channels and a PCI interface unit. NICs 48 * using the Tigon may have anywhere from 512K to 2MB of SRAM. The 49 * Tigon supports hardware IP, TCP and UCP checksumming, multicast 50 * filtering and jumbo (9014 byte) frames. The hardware is largely 51 * controlled by firmware, which must be loaded into the NIC during 52 * initialization. 53 * 54 * The Tigon 2 contains 2 R4000 CPUs and requires a newer firmware 55 * revision, which supports new features such as extended commands, 56 * extended jumbo receive ring descriptors and a mini receive ring. 57 * 58 * Alteon Networks is to be commended for releasing such a vast amount 59 * of development material for the Tigon NIC without requiring an NDA 60 * (although they really should have done it a long time ago). With 61 * any luck, the other vendors will finally wise up and follow Alteon's 62 * stellar example. 63 * 64 * The firmware for the Tigon 1 and 2 NICs is compiled directly into 65 * this driver by #including it as a C header file. This bloats the 66 * driver somewhat, but it's the easiest method considering that the 67 * driver code and firmware code need to be kept in sync. The source 68 * for the firmware is not provided with the FreeBSD distribution since 69 * compiling it requires a GNU toolchain targeted for mips-sgi-irix5.3. 70 * 71 * The following people deserve special thanks: 72 * - Terry Murphy of 3Com, for providing a 3c985 Tigon 1 board 73 * for testing 74 * - Raymond Lee of Netgear, for providing a pair of Netgear 75 * GA620 Tigon 2 boards for testing 76 * - Ulf Zimmermann, for bringing the GA260 to my attention and 77 * convincing me to write this driver. 78 * - Andrew Gallatin for providing FreeBSD/Alpha support. 79 */ 80 81 #include <sys/cdefs.h> 82 __FBSDID("$FreeBSD$"); 83 84 #include "opt_ti.h" 85 86 #include <sys/param.h> 87 #include <sys/systm.h> 88 #include <sys/sockio.h> 89 #include <sys/mbuf.h> 90 #include <sys/malloc.h> 91 #include <sys/kernel.h> 92 #include <sys/module.h> 93 #include <sys/socket.h> 94 #include <sys/queue.h> 95 #include <sys/conf.h> 96 #include <sys/sf_buf.h> 97 98 #include <net/if.h> 99 #include <net/if_var.h> 100 #include <net/if_arp.h> 101 #include <net/ethernet.h> 102 #include <net/if_dl.h> 103 #include <net/if_media.h> 104 #include <net/if_types.h> 105 #include <net/if_vlan_var.h> 106 107 #include <net/bpf.h> 108 109 #include <netinet/in_systm.h> 110 #include <netinet/in.h> 111 #include <netinet/ip.h> 112 113 #include <machine/bus.h> 114 #include <machine/resource.h> 115 #include <sys/bus.h> 116 #include <sys/rman.h> 117 118 #ifdef TI_SF_BUF_JUMBO 119 #include <vm/vm.h> 120 #include <vm/vm_page.h> 121 #endif 122 123 #include <dev/pci/pcireg.h> 124 #include <dev/pci/pcivar.h> 125 126 #include <sys/tiio.h> 127 #include <dev/ti/if_tireg.h> 128 #include <dev/ti/ti_fw.h> 129 #include <dev/ti/ti_fw2.h> 130 131 #include <sys/sysctl.h> 132 133 #define TI_CSUM_FEATURES (CSUM_IP | CSUM_TCP | CSUM_UDP) 134 /* 135 * We can only turn on header splitting if we're using extended receive 136 * BDs. 137 */ 138 #if defined(TI_JUMBO_HDRSPLIT) && !defined(TI_SF_BUF_JUMBO) 139 #error "options TI_JUMBO_HDRSPLIT requires TI_SF_BUF_JUMBO" 140 #endif /* TI_JUMBO_HDRSPLIT && !TI_SF_BUF_JUMBO */ 141 142 typedef enum { 143 TI_SWAP_HTON, 144 TI_SWAP_NTOH 145 } ti_swap_type; 146 147 /* 148 * Various supported device vendors/types and their names. 149 */ 150 151 static const struct ti_type ti_devs[] = { 152 { ALT_VENDORID, ALT_DEVICEID_ACENIC, 153 "Alteon AceNIC 1000baseSX Gigabit Ethernet" }, 154 { ALT_VENDORID, ALT_DEVICEID_ACENIC_COPPER, 155 "Alteon AceNIC 1000baseT Gigabit Ethernet" }, 156 { TC_VENDORID, TC_DEVICEID_3C985, 157 "3Com 3c985-SX Gigabit Ethernet" }, 158 { NG_VENDORID, NG_DEVICEID_GA620, 159 "Netgear GA620 1000baseSX Gigabit Ethernet" }, 160 { NG_VENDORID, NG_DEVICEID_GA620T, 161 "Netgear GA620 1000baseT Gigabit Ethernet" }, 162 { SGI_VENDORID, SGI_DEVICEID_TIGON, 163 "Silicon Graphics Gigabit Ethernet" }, 164 { DEC_VENDORID, DEC_DEVICEID_FARALLON_PN9000SX, 165 "Farallon PN9000SX Gigabit Ethernet" }, 166 { 0, 0, NULL } 167 }; 168 169 static d_open_t ti_open; 170 static d_close_t ti_close; 171 static d_ioctl_t ti_ioctl2; 172 173 static struct cdevsw ti_cdevsw = { 174 .d_version = D_VERSION, 175 .d_flags = 0, 176 .d_open = ti_open, 177 .d_close = ti_close, 178 .d_ioctl = ti_ioctl2, 179 .d_name = "ti", 180 }; 181 182 static int ti_probe(device_t); 183 static int ti_attach(device_t); 184 static int ti_detach(device_t); 185 static void ti_txeof(struct ti_softc *); 186 static void ti_rxeof(struct ti_softc *); 187 188 static int ti_encap(struct ti_softc *, struct mbuf **); 189 190 static void ti_intr(void *); 191 static void ti_start(struct ifnet *); 192 static void ti_start_locked(struct ifnet *); 193 static int ti_ioctl(struct ifnet *, u_long, caddr_t); 194 static uint64_t ti_get_counter(struct ifnet *, ift_counter); 195 static void ti_init(void *); 196 static void ti_init_locked(void *); 197 static void ti_init2(struct ti_softc *); 198 static void ti_stop(struct ti_softc *); 199 static void ti_watchdog(void *); 200 static int ti_shutdown(device_t); 201 static int ti_ifmedia_upd(struct ifnet *); 202 static int ti_ifmedia_upd_locked(struct ti_softc *); 203 static void ti_ifmedia_sts(struct ifnet *, struct ifmediareq *); 204 205 static uint32_t ti_eeprom_putbyte(struct ti_softc *, int); 206 static uint8_t ti_eeprom_getbyte(struct ti_softc *, int, uint8_t *); 207 static int ti_read_eeprom(struct ti_softc *, caddr_t, int, int); 208 209 static u_int ti_add_mcast(void *, struct sockaddr_dl *, u_int); 210 static u_int ti_del_mcast(void *, struct sockaddr_dl *, u_int); 211 static void ti_setmulti(struct ti_softc *); 212 213 static void ti_mem_read(struct ti_softc *, uint32_t, uint32_t, void *); 214 static void ti_mem_write(struct ti_softc *, uint32_t, uint32_t, void *); 215 static void ti_mem_zero(struct ti_softc *, uint32_t, uint32_t); 216 static int ti_copy_mem(struct ti_softc *, uint32_t, uint32_t, caddr_t, int, 217 int); 218 static int ti_copy_scratch(struct ti_softc *, uint32_t, uint32_t, caddr_t, 219 int, int, int); 220 static int ti_bcopy_swap(const void *, void *, size_t, ti_swap_type); 221 static void ti_loadfw(struct ti_softc *); 222 static void ti_cmd(struct ti_softc *, struct ti_cmd_desc *); 223 static void ti_cmd_ext(struct ti_softc *, struct ti_cmd_desc *, caddr_t, int); 224 static void ti_handle_events(struct ti_softc *); 225 static void ti_dma_map_addr(void *, bus_dma_segment_t *, int, int); 226 static int ti_dma_alloc(struct ti_softc *); 227 static void ti_dma_free(struct ti_softc *); 228 static int ti_dma_ring_alloc(struct ti_softc *, bus_size_t, bus_size_t, 229 bus_dma_tag_t *, uint8_t **, bus_dmamap_t *, bus_addr_t *, const char *); 230 static void ti_dma_ring_free(struct ti_softc *, bus_dma_tag_t *, uint8_t **, 231 bus_dmamap_t, bus_addr_t *); 232 static int ti_newbuf_std(struct ti_softc *, int); 233 static int ti_newbuf_mini(struct ti_softc *, int); 234 static int ti_newbuf_jumbo(struct ti_softc *, int, struct mbuf *); 235 static int ti_init_rx_ring_std(struct ti_softc *); 236 static void ti_free_rx_ring_std(struct ti_softc *); 237 static int ti_init_rx_ring_jumbo(struct ti_softc *); 238 static void ti_free_rx_ring_jumbo(struct ti_softc *); 239 static int ti_init_rx_ring_mini(struct ti_softc *); 240 static void ti_free_rx_ring_mini(struct ti_softc *); 241 static void ti_free_tx_ring(struct ti_softc *); 242 static int ti_init_tx_ring(struct ti_softc *); 243 static void ti_discard_std(struct ti_softc *, int); 244 #ifndef TI_SF_BUF_JUMBO 245 static void ti_discard_jumbo(struct ti_softc *, int); 246 #endif 247 static void ti_discard_mini(struct ti_softc *, int); 248 249 static int ti_64bitslot_war(struct ti_softc *); 250 static int ti_chipinit(struct ti_softc *); 251 static int ti_gibinit(struct ti_softc *); 252 253 #ifdef TI_JUMBO_HDRSPLIT 254 static __inline void ti_hdr_split(struct mbuf *top, int hdr_len, int pkt_len, 255 int idx); 256 #endif /* TI_JUMBO_HDRSPLIT */ 257 258 static void ti_sysctl_node(struct ti_softc *); 259 260 static device_method_t ti_methods[] = { 261 /* Device interface */ 262 DEVMETHOD(device_probe, ti_probe), 263 DEVMETHOD(device_attach, ti_attach), 264 DEVMETHOD(device_detach, ti_detach), 265 DEVMETHOD(device_shutdown, ti_shutdown), 266 { 0, 0 } 267 }; 268 269 static driver_t ti_driver = { 270 "ti", 271 ti_methods, 272 sizeof(struct ti_softc) 273 }; 274 275 DRIVER_MODULE(ti, pci, ti_driver, 0, 0); 276 MODULE_DEPEND(ti, pci, 1, 1, 1); 277 MODULE_DEPEND(ti, ether, 1, 1, 1); 278 279 /* 280 * Send an instruction or address to the EEPROM, check for ACK. 281 */ 282 static uint32_t 283 ti_eeprom_putbyte(struct ti_softc *sc, int byte) 284 { 285 int i, ack = 0; 286 287 /* 288 * Make sure we're in TX mode. 289 */ 290 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); 291 292 /* 293 * Feed in each bit and stobe the clock. 294 */ 295 for (i = 0x80; i; i >>= 1) { 296 if (byte & i) { 297 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); 298 } else { 299 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_DOUT); 300 } 301 DELAY(1); 302 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 303 DELAY(1); 304 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 305 } 306 307 /* 308 * Turn off TX mode. 309 */ 310 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); 311 312 /* 313 * Check for ack. 314 */ 315 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 316 ack = CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN; 317 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 318 319 return (ack); 320 } 321 322 /* 323 * Read a byte of data stored in the EEPROM at address 'addr.' 324 * We have to send two address bytes since the EEPROM can hold 325 * more than 256 bytes of data. 326 */ 327 static uint8_t 328 ti_eeprom_getbyte(struct ti_softc *sc, int addr, uint8_t *dest) 329 { 330 int i; 331 uint8_t byte = 0; 332 333 EEPROM_START; 334 335 /* 336 * Send write control code to EEPROM. 337 */ 338 if (ti_eeprom_putbyte(sc, EEPROM_CTL_WRITE)) { 339 device_printf(sc->ti_dev, 340 "failed to send write command, status: %x\n", 341 CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); 342 return (1); 343 } 344 345 /* 346 * Send first byte of address of byte we want to read. 347 */ 348 if (ti_eeprom_putbyte(sc, (addr >> 8) & 0xFF)) { 349 device_printf(sc->ti_dev, "failed to send address, status: %x\n", 350 CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); 351 return (1); 352 } 353 /* 354 * Send second byte address of byte we want to read. 355 */ 356 if (ti_eeprom_putbyte(sc, addr & 0xFF)) { 357 device_printf(sc->ti_dev, "failed to send address, status: %x\n", 358 CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); 359 return (1); 360 } 361 362 EEPROM_STOP; 363 EEPROM_START; 364 /* 365 * Send read control code to EEPROM. 366 */ 367 if (ti_eeprom_putbyte(sc, EEPROM_CTL_READ)) { 368 device_printf(sc->ti_dev, 369 "failed to send read command, status: %x\n", 370 CSR_READ_4(sc, TI_MISC_LOCAL_CTL)); 371 return (1); 372 } 373 374 /* 375 * Start reading bits from EEPROM. 376 */ 377 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_TXEN); 378 for (i = 0x80; i; i >>= 1) { 379 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 380 DELAY(1); 381 if (CSR_READ_4(sc, TI_MISC_LOCAL_CTL) & TI_MLC_EE_DIN) 382 byte |= i; 383 TI_CLRBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_EE_CLK); 384 DELAY(1); 385 } 386 387 EEPROM_STOP; 388 389 /* 390 * No ACK generated for read, so just return byte. 391 */ 392 393 *dest = byte; 394 395 return (0); 396 } 397 398 /* 399 * Read a sequence of bytes from the EEPROM. 400 */ 401 static int 402 ti_read_eeprom(struct ti_softc *sc, caddr_t dest, int off, int cnt) 403 { 404 int err = 0, i; 405 uint8_t byte = 0; 406 407 for (i = 0; i < cnt; i++) { 408 err = ti_eeprom_getbyte(sc, off + i, &byte); 409 if (err) 410 break; 411 *(dest + i) = byte; 412 } 413 414 return (err ? 1 : 0); 415 } 416 417 /* 418 * NIC memory read function. 419 * Can be used to copy data from NIC local memory. 420 */ 421 static void 422 ti_mem_read(struct ti_softc *sc, uint32_t addr, uint32_t len, void *buf) 423 { 424 int segptr, segsize, cnt; 425 char *ptr; 426 427 segptr = addr; 428 cnt = len; 429 ptr = buf; 430 431 while (cnt) { 432 if (cnt < TI_WINLEN) 433 segsize = cnt; 434 else 435 segsize = TI_WINLEN - (segptr % TI_WINLEN); 436 CSR_WRITE_4(sc, TI_WINBASE, rounddown2(segptr, TI_WINLEN)); 437 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle, 438 TI_WINDOW + (segptr & (TI_WINLEN - 1)), (uint32_t *)ptr, 439 segsize / 4); 440 ptr += segsize; 441 segptr += segsize; 442 cnt -= segsize; 443 } 444 } 445 446 /* 447 * NIC memory write function. 448 * Can be used to copy data into NIC local memory. 449 */ 450 static void 451 ti_mem_write(struct ti_softc *sc, uint32_t addr, uint32_t len, void *buf) 452 { 453 int segptr, segsize, cnt; 454 char *ptr; 455 456 segptr = addr; 457 cnt = len; 458 ptr = buf; 459 460 while (cnt) { 461 if (cnt < TI_WINLEN) 462 segsize = cnt; 463 else 464 segsize = TI_WINLEN - (segptr % TI_WINLEN); 465 CSR_WRITE_4(sc, TI_WINBASE, rounddown2(segptr, TI_WINLEN)); 466 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle, 467 TI_WINDOW + (segptr & (TI_WINLEN - 1)), (uint32_t *)ptr, 468 segsize / 4); 469 ptr += segsize; 470 segptr += segsize; 471 cnt -= segsize; 472 } 473 } 474 475 /* 476 * NIC memory read function. 477 * Can be used to clear a section of NIC local memory. 478 */ 479 static void 480 ti_mem_zero(struct ti_softc *sc, uint32_t addr, uint32_t len) 481 { 482 int segptr, segsize, cnt; 483 484 segptr = addr; 485 cnt = len; 486 487 while (cnt) { 488 if (cnt < TI_WINLEN) 489 segsize = cnt; 490 else 491 segsize = TI_WINLEN - (segptr % TI_WINLEN); 492 CSR_WRITE_4(sc, TI_WINBASE, rounddown2(segptr, TI_WINLEN)); 493 bus_space_set_region_4(sc->ti_btag, sc->ti_bhandle, 494 TI_WINDOW + (segptr & (TI_WINLEN - 1)), 0, segsize / 4); 495 segptr += segsize; 496 cnt -= segsize; 497 } 498 } 499 500 static int 501 ti_copy_mem(struct ti_softc *sc, uint32_t tigon_addr, uint32_t len, 502 caddr_t buf, int useraddr, int readdata) 503 { 504 int segptr, segsize, cnt; 505 caddr_t ptr; 506 uint32_t origwin; 507 int resid, segresid; 508 int first_pass; 509 510 TI_LOCK_ASSERT(sc); 511 512 /* 513 * At the moment, we don't handle non-aligned cases, we just bail. 514 * If this proves to be a problem, it will be fixed. 515 */ 516 if (readdata == 0 && (tigon_addr & 0x3) != 0) { 517 device_printf(sc->ti_dev, "%s: tigon address %#x isn't " 518 "word-aligned\n", __func__, tigon_addr); 519 device_printf(sc->ti_dev, "%s: unaligned writes aren't " 520 "yet supported\n", __func__); 521 return (EINVAL); 522 } 523 524 segptr = tigon_addr & ~0x3; 525 segresid = tigon_addr - segptr; 526 527 /* 528 * This is the non-aligned amount left over that we'll need to 529 * copy. 530 */ 531 resid = len & 0x3; 532 533 /* Add in the left over amount at the front of the buffer */ 534 resid += segresid; 535 536 cnt = len & ~0x3; 537 /* 538 * If resid + segresid is >= 4, add multiples of 4 to the count and 539 * decrease the residual by that much. 540 */ 541 cnt += resid & ~0x3; 542 resid -= resid & ~0x3; 543 544 ptr = buf; 545 546 first_pass = 1; 547 548 /* 549 * Save the old window base value. 550 */ 551 origwin = CSR_READ_4(sc, TI_WINBASE); 552 553 while (cnt) { 554 bus_size_t ti_offset; 555 556 if (cnt < TI_WINLEN) 557 segsize = cnt; 558 else 559 segsize = TI_WINLEN - (segptr % TI_WINLEN); 560 CSR_WRITE_4(sc, TI_WINBASE, rounddown2(segptr, TI_WINLEN)); 561 562 ti_offset = TI_WINDOW + (segptr & (TI_WINLEN -1)); 563 564 if (readdata) { 565 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle, 566 ti_offset, (uint32_t *)sc->ti_membuf, segsize >> 2); 567 if (useraddr) { 568 /* 569 * Yeah, this is a little on the kludgy 570 * side, but at least this code is only 571 * used for debugging. 572 */ 573 ti_bcopy_swap(sc->ti_membuf, sc->ti_membuf2, 574 segsize, TI_SWAP_NTOH); 575 576 TI_UNLOCK(sc); 577 if (first_pass) { 578 copyout(&sc->ti_membuf2[segresid], ptr, 579 segsize - segresid); 580 first_pass = 0; 581 } else 582 copyout(sc->ti_membuf2, ptr, segsize); 583 TI_LOCK(sc); 584 } else { 585 if (first_pass) { 586 ti_bcopy_swap(sc->ti_membuf, 587 sc->ti_membuf2, segsize, 588 TI_SWAP_NTOH); 589 TI_UNLOCK(sc); 590 bcopy(&sc->ti_membuf2[segresid], ptr, 591 segsize - segresid); 592 TI_LOCK(sc); 593 first_pass = 0; 594 } else 595 ti_bcopy_swap(sc->ti_membuf, ptr, 596 segsize, TI_SWAP_NTOH); 597 } 598 599 } else { 600 if (useraddr) { 601 TI_UNLOCK(sc); 602 copyin(ptr, sc->ti_membuf2, segsize); 603 TI_LOCK(sc); 604 ti_bcopy_swap(sc->ti_membuf2, sc->ti_membuf, 605 segsize, TI_SWAP_HTON); 606 } else 607 ti_bcopy_swap(ptr, sc->ti_membuf, segsize, 608 TI_SWAP_HTON); 609 610 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle, 611 ti_offset, (uint32_t *)sc->ti_membuf, segsize >> 2); 612 } 613 segptr += segsize; 614 ptr += segsize; 615 cnt -= segsize; 616 } 617 618 /* 619 * Handle leftover, non-word-aligned bytes. 620 */ 621 if (resid != 0) { 622 uint32_t tmpval, tmpval2; 623 bus_size_t ti_offset; 624 625 /* 626 * Set the segment pointer. 627 */ 628 CSR_WRITE_4(sc, TI_WINBASE, rounddown2(segptr, TI_WINLEN)); 629 630 ti_offset = TI_WINDOW + (segptr & (TI_WINLEN - 1)); 631 632 /* 633 * First, grab whatever is in our source/destination. 634 * We'll obviously need this for reads, but also for 635 * writes, since we'll be doing read/modify/write. 636 */ 637 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle, 638 ti_offset, &tmpval, 1); 639 640 /* 641 * Next, translate this from little-endian to big-endian 642 * (at least on i386 boxes). 643 */ 644 tmpval2 = ntohl(tmpval); 645 646 if (readdata) { 647 /* 648 * If we're reading, just copy the leftover number 649 * of bytes from the host byte order buffer to 650 * the user's buffer. 651 */ 652 if (useraddr) { 653 TI_UNLOCK(sc); 654 copyout(&tmpval2, ptr, resid); 655 TI_LOCK(sc); 656 } else 657 bcopy(&tmpval2, ptr, resid); 658 } else { 659 /* 660 * If we're writing, first copy the bytes to be 661 * written into the network byte order buffer, 662 * leaving the rest of the buffer with whatever was 663 * originally in there. Then, swap the bytes 664 * around into host order and write them out. 665 * 666 * XXX KDM the read side of this has been verified 667 * to work, but the write side of it has not been 668 * verified. So user beware. 669 */ 670 if (useraddr) { 671 TI_UNLOCK(sc); 672 copyin(ptr, &tmpval2, resid); 673 TI_LOCK(sc); 674 } else 675 bcopy(ptr, &tmpval2, resid); 676 677 tmpval = htonl(tmpval2); 678 679 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle, 680 ti_offset, &tmpval, 1); 681 } 682 } 683 684 CSR_WRITE_4(sc, TI_WINBASE, origwin); 685 686 return (0); 687 } 688 689 static int 690 ti_copy_scratch(struct ti_softc *sc, uint32_t tigon_addr, uint32_t len, 691 caddr_t buf, int useraddr, int readdata, int cpu) 692 { 693 uint32_t segptr; 694 int cnt; 695 uint32_t tmpval, tmpval2; 696 caddr_t ptr; 697 698 TI_LOCK_ASSERT(sc); 699 700 /* 701 * At the moment, we don't handle non-aligned cases, we just bail. 702 * If this proves to be a problem, it will be fixed. 703 */ 704 if (tigon_addr & 0x3) { 705 device_printf(sc->ti_dev, "%s: tigon address %#x " 706 "isn't word-aligned\n", __func__, tigon_addr); 707 return (EINVAL); 708 } 709 710 if (len & 0x3) { 711 device_printf(sc->ti_dev, "%s: transfer length %d " 712 "isn't word-aligned\n", __func__, len); 713 return (EINVAL); 714 } 715 716 segptr = tigon_addr; 717 cnt = len; 718 ptr = buf; 719 720 while (cnt) { 721 CSR_WRITE_4(sc, CPU_REG(TI_SRAM_ADDR, cpu), segptr); 722 723 if (readdata) { 724 tmpval2 = CSR_READ_4(sc, CPU_REG(TI_SRAM_DATA, cpu)); 725 726 tmpval = ntohl(tmpval2); 727 728 /* 729 * Note: I've used this debugging interface 730 * extensively with Alteon's 12.3.15 firmware, 731 * compiled with GCC 2.7.2.1 and binutils 2.9.1. 732 * 733 * When you compile the firmware without 734 * optimization, which is necessary sometimes in 735 * order to properly step through it, you sometimes 736 * read out a bogus value of 0xc0017c instead of 737 * whatever was supposed to be in that scratchpad 738 * location. That value is on the stack somewhere, 739 * but I've never been able to figure out what was 740 * causing the problem. 741 * 742 * The address seems to pop up in random places, 743 * often not in the same place on two subsequent 744 * reads. 745 * 746 * In any case, the underlying data doesn't seem 747 * to be affected, just the value read out. 748 * 749 * KDM, 3/7/2000 750 */ 751 752 if (tmpval2 == 0xc0017c) 753 device_printf(sc->ti_dev, "found 0xc0017c at " 754 "%#x (tmpval2)\n", segptr); 755 756 if (tmpval == 0xc0017c) 757 device_printf(sc->ti_dev, "found 0xc0017c at " 758 "%#x (tmpval)\n", segptr); 759 760 if (useraddr) 761 copyout(&tmpval, ptr, 4); 762 else 763 bcopy(&tmpval, ptr, 4); 764 } else { 765 if (useraddr) 766 copyin(ptr, &tmpval2, 4); 767 else 768 bcopy(ptr, &tmpval2, 4); 769 770 tmpval = htonl(tmpval2); 771 772 CSR_WRITE_4(sc, CPU_REG(TI_SRAM_DATA, cpu), tmpval); 773 } 774 775 cnt -= 4; 776 segptr += 4; 777 ptr += 4; 778 } 779 780 return (0); 781 } 782 783 static int 784 ti_bcopy_swap(const void *src, void *dst, size_t len, ti_swap_type swap_type) 785 { 786 const uint8_t *tmpsrc; 787 uint8_t *tmpdst; 788 size_t tmplen; 789 790 if (len & 0x3) { 791 printf("ti_bcopy_swap: length %zd isn't 32-bit aligned\n", len); 792 return (-1); 793 } 794 795 tmpsrc = src; 796 tmpdst = dst; 797 tmplen = len; 798 799 while (tmplen) { 800 if (swap_type == TI_SWAP_NTOH) 801 *(uint32_t *)tmpdst = ntohl(*(const uint32_t *)tmpsrc); 802 else 803 *(uint32_t *)tmpdst = htonl(*(const uint32_t *)tmpsrc); 804 tmpsrc += 4; 805 tmpdst += 4; 806 tmplen -= 4; 807 } 808 809 return (0); 810 } 811 812 /* 813 * Load firmware image into the NIC. Check that the firmware revision 814 * is acceptable and see if we want the firmware for the Tigon 1 or 815 * Tigon 2. 816 */ 817 static void 818 ti_loadfw(struct ti_softc *sc) 819 { 820 821 TI_LOCK_ASSERT(sc); 822 823 switch (sc->ti_hwrev) { 824 case TI_HWREV_TIGON: 825 if (tigonFwReleaseMajor != TI_FIRMWARE_MAJOR || 826 tigonFwReleaseMinor != TI_FIRMWARE_MINOR || 827 tigonFwReleaseFix != TI_FIRMWARE_FIX) { 828 device_printf(sc->ti_dev, "firmware revision mismatch; " 829 "want %d.%d.%d, got %d.%d.%d\n", 830 TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR, 831 TI_FIRMWARE_FIX, tigonFwReleaseMajor, 832 tigonFwReleaseMinor, tigonFwReleaseFix); 833 return; 834 } 835 ti_mem_write(sc, tigonFwTextAddr, tigonFwTextLen, tigonFwText); 836 ti_mem_write(sc, tigonFwDataAddr, tigonFwDataLen, tigonFwData); 837 ti_mem_write(sc, tigonFwRodataAddr, tigonFwRodataLen, 838 tigonFwRodata); 839 ti_mem_zero(sc, tigonFwBssAddr, tigonFwBssLen); 840 ti_mem_zero(sc, tigonFwSbssAddr, tigonFwSbssLen); 841 CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigonFwStartAddr); 842 break; 843 case TI_HWREV_TIGON_II: 844 if (tigon2FwReleaseMajor != TI_FIRMWARE_MAJOR || 845 tigon2FwReleaseMinor != TI_FIRMWARE_MINOR || 846 tigon2FwReleaseFix != TI_FIRMWARE_FIX) { 847 device_printf(sc->ti_dev, "firmware revision mismatch; " 848 "want %d.%d.%d, got %d.%d.%d\n", 849 TI_FIRMWARE_MAJOR, TI_FIRMWARE_MINOR, 850 TI_FIRMWARE_FIX, tigon2FwReleaseMajor, 851 tigon2FwReleaseMinor, tigon2FwReleaseFix); 852 return; 853 } 854 ti_mem_write(sc, tigon2FwTextAddr, tigon2FwTextLen, 855 tigon2FwText); 856 ti_mem_write(sc, tigon2FwDataAddr, tigon2FwDataLen, 857 tigon2FwData); 858 ti_mem_write(sc, tigon2FwRodataAddr, tigon2FwRodataLen, 859 tigon2FwRodata); 860 ti_mem_zero(sc, tigon2FwBssAddr, tigon2FwBssLen); 861 ti_mem_zero(sc, tigon2FwSbssAddr, tigon2FwSbssLen); 862 CSR_WRITE_4(sc, TI_CPU_PROGRAM_COUNTER, tigon2FwStartAddr); 863 break; 864 default: 865 device_printf(sc->ti_dev, 866 "can't load firmware: unknown hardware rev\n"); 867 break; 868 } 869 } 870 871 /* 872 * Send the NIC a command via the command ring. 873 */ 874 static void 875 ti_cmd(struct ti_softc *sc, struct ti_cmd_desc *cmd) 876 { 877 int index; 878 879 index = sc->ti_cmd_saved_prodidx; 880 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(uint32_t *)(cmd)); 881 TI_INC(index, TI_CMD_RING_CNT); 882 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index); 883 sc->ti_cmd_saved_prodidx = index; 884 } 885 886 /* 887 * Send the NIC an extended command. The 'len' parameter specifies the 888 * number of command slots to include after the initial command. 889 */ 890 static void 891 ti_cmd_ext(struct ti_softc *sc, struct ti_cmd_desc *cmd, caddr_t arg, int len) 892 { 893 int index; 894 int i; 895 896 index = sc->ti_cmd_saved_prodidx; 897 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), *(uint32_t *)(cmd)); 898 TI_INC(index, TI_CMD_RING_CNT); 899 for (i = 0; i < len; i++) { 900 CSR_WRITE_4(sc, TI_GCR_CMDRING + (index * 4), 901 *(uint32_t *)(&arg[i * 4])); 902 TI_INC(index, TI_CMD_RING_CNT); 903 } 904 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, index); 905 sc->ti_cmd_saved_prodidx = index; 906 } 907 908 /* 909 * Handle events that have triggered interrupts. 910 */ 911 static void 912 ti_handle_events(struct ti_softc *sc) 913 { 914 struct ti_event_desc *e; 915 916 if (sc->ti_rdata.ti_event_ring == NULL) 917 return; 918 919 bus_dmamap_sync(sc->ti_cdata.ti_event_ring_tag, 920 sc->ti_cdata.ti_event_ring_map, BUS_DMASYNC_POSTREAD); 921 while (sc->ti_ev_saved_considx != sc->ti_ev_prodidx.ti_idx) { 922 e = &sc->ti_rdata.ti_event_ring[sc->ti_ev_saved_considx]; 923 switch (TI_EVENT_EVENT(e)) { 924 case TI_EV_LINKSTAT_CHANGED: 925 sc->ti_linkstat = TI_EVENT_CODE(e); 926 if (sc->ti_linkstat == TI_EV_CODE_LINK_UP) { 927 if_link_state_change(sc->ti_ifp, LINK_STATE_UP); 928 sc->ti_ifp->if_baudrate = IF_Mbps(100); 929 if (bootverbose) 930 device_printf(sc->ti_dev, 931 "10/100 link up\n"); 932 } else if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP) { 933 if_link_state_change(sc->ti_ifp, LINK_STATE_UP); 934 sc->ti_ifp->if_baudrate = IF_Gbps(1UL); 935 if (bootverbose) 936 device_printf(sc->ti_dev, 937 "gigabit link up\n"); 938 } else if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN) { 939 if_link_state_change(sc->ti_ifp, 940 LINK_STATE_DOWN); 941 sc->ti_ifp->if_baudrate = 0; 942 if (bootverbose) 943 device_printf(sc->ti_dev, 944 "link down\n"); 945 } 946 break; 947 case TI_EV_ERROR: 948 if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_INVAL_CMD) 949 device_printf(sc->ti_dev, "invalid command\n"); 950 else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_UNIMP_CMD) 951 device_printf(sc->ti_dev, "unknown command\n"); 952 else if (TI_EVENT_CODE(e) == TI_EV_CODE_ERR_BADCFG) 953 device_printf(sc->ti_dev, "bad config data\n"); 954 break; 955 case TI_EV_FIRMWARE_UP: 956 ti_init2(sc); 957 break; 958 case TI_EV_STATS_UPDATED: 959 case TI_EV_RESET_JUMBO_RING: 960 case TI_EV_MCAST_UPDATED: 961 /* Who cares. */ 962 break; 963 default: 964 device_printf(sc->ti_dev, "unknown event: %d\n", 965 TI_EVENT_EVENT(e)); 966 break; 967 } 968 /* Advance the consumer index. */ 969 TI_INC(sc->ti_ev_saved_considx, TI_EVENT_RING_CNT); 970 CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, sc->ti_ev_saved_considx); 971 } 972 bus_dmamap_sync(sc->ti_cdata.ti_event_ring_tag, 973 sc->ti_cdata.ti_event_ring_map, BUS_DMASYNC_PREREAD); 974 } 975 976 struct ti_dmamap_arg { 977 bus_addr_t ti_busaddr; 978 }; 979 980 static void 981 ti_dma_map_addr(void *arg, bus_dma_segment_t *segs, int nseg, int error) 982 { 983 struct ti_dmamap_arg *ctx; 984 985 if (error) 986 return; 987 988 KASSERT(nseg == 1, ("%s: %d segments returned!", __func__, nseg)); 989 990 ctx = arg; 991 ctx->ti_busaddr = segs->ds_addr; 992 } 993 994 static int 995 ti_dma_ring_alloc(struct ti_softc *sc, bus_size_t alignment, bus_size_t maxsize, 996 bus_dma_tag_t *tag, uint8_t **ring, bus_dmamap_t *map, bus_addr_t *paddr, 997 const char *msg) 998 { 999 struct ti_dmamap_arg ctx; 1000 int error; 1001 1002 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1003 alignment, 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, 1004 NULL, maxsize, 1, maxsize, 0, NULL, NULL, tag); 1005 if (error != 0) { 1006 device_printf(sc->ti_dev, 1007 "could not create %s dma tag\n", msg); 1008 return (error); 1009 } 1010 /* Allocate DMA'able memory for ring. */ 1011 error = bus_dmamem_alloc(*tag, (void **)ring, 1012 BUS_DMA_NOWAIT | BUS_DMA_ZERO | BUS_DMA_COHERENT, map); 1013 if (error != 0) { 1014 device_printf(sc->ti_dev, 1015 "could not allocate DMA'able memory for %s\n", msg); 1016 return (error); 1017 } 1018 /* Load the address of the ring. */ 1019 ctx.ti_busaddr = 0; 1020 error = bus_dmamap_load(*tag, *map, *ring, maxsize, ti_dma_map_addr, 1021 &ctx, BUS_DMA_NOWAIT); 1022 if (error != 0) { 1023 device_printf(sc->ti_dev, 1024 "could not load DMA'able memory for %s\n", msg); 1025 return (error); 1026 } 1027 *paddr = ctx.ti_busaddr; 1028 return (0); 1029 } 1030 1031 static void 1032 ti_dma_ring_free(struct ti_softc *sc, bus_dma_tag_t *tag, uint8_t **ring, 1033 bus_dmamap_t map, bus_addr_t *paddr) 1034 { 1035 1036 if (*paddr != 0) { 1037 bus_dmamap_unload(*tag, map); 1038 *paddr = 0; 1039 } 1040 if (*ring != NULL) { 1041 bus_dmamem_free(*tag, *ring, map); 1042 *ring = NULL; 1043 } 1044 if (*tag) { 1045 bus_dma_tag_destroy(*tag); 1046 *tag = NULL; 1047 } 1048 } 1049 1050 static int 1051 ti_dma_alloc(struct ti_softc *sc) 1052 { 1053 bus_addr_t lowaddr; 1054 int i, error; 1055 1056 lowaddr = BUS_SPACE_MAXADDR; 1057 if (sc->ti_dac == 0) 1058 lowaddr = BUS_SPACE_MAXADDR_32BIT; 1059 1060 error = bus_dma_tag_create(bus_get_dma_tag(sc->ti_dev), 1, 0, lowaddr, 1061 BUS_SPACE_MAXADDR, NULL, NULL, BUS_SPACE_MAXSIZE_32BIT, 0, 1062 BUS_SPACE_MAXSIZE_32BIT, 0, NULL, NULL, 1063 &sc->ti_cdata.ti_parent_tag); 1064 if (error != 0) { 1065 device_printf(sc->ti_dev, 1066 "could not allocate parent dma tag\n"); 1067 return (ENOMEM); 1068 } 1069 1070 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, sizeof(struct ti_gib), 1071 &sc->ti_cdata.ti_gib_tag, (uint8_t **)&sc->ti_rdata.ti_info, 1072 &sc->ti_cdata.ti_gib_map, &sc->ti_rdata.ti_info_paddr, "GIB"); 1073 if (error) 1074 return (error); 1075 1076 /* Producer/consumer status */ 1077 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, sizeof(struct ti_status), 1078 &sc->ti_cdata.ti_status_tag, (uint8_t **)&sc->ti_rdata.ti_status, 1079 &sc->ti_cdata.ti_status_map, &sc->ti_rdata.ti_status_paddr, 1080 "event ring"); 1081 if (error) 1082 return (error); 1083 1084 /* Event ring */ 1085 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_EVENT_RING_SZ, 1086 &sc->ti_cdata.ti_event_ring_tag, 1087 (uint8_t **)&sc->ti_rdata.ti_event_ring, 1088 &sc->ti_cdata.ti_event_ring_map, &sc->ti_rdata.ti_event_ring_paddr, 1089 "event ring"); 1090 if (error) 1091 return (error); 1092 1093 /* Command ring lives in shared memory so no need to create DMA area. */ 1094 1095 /* Standard RX ring */ 1096 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_STD_RX_RING_SZ, 1097 &sc->ti_cdata.ti_rx_std_ring_tag, 1098 (uint8_t **)&sc->ti_rdata.ti_rx_std_ring, 1099 &sc->ti_cdata.ti_rx_std_ring_map, 1100 &sc->ti_rdata.ti_rx_std_ring_paddr, "RX ring"); 1101 if (error) 1102 return (error); 1103 1104 /* Jumbo RX ring */ 1105 error = ti_dma_ring_alloc(sc, TI_JUMBO_RING_ALIGN, TI_JUMBO_RX_RING_SZ, 1106 &sc->ti_cdata.ti_rx_jumbo_ring_tag, 1107 (uint8_t **)&sc->ti_rdata.ti_rx_jumbo_ring, 1108 &sc->ti_cdata.ti_rx_jumbo_ring_map, 1109 &sc->ti_rdata.ti_rx_jumbo_ring_paddr, "jumbo RX ring"); 1110 if (error) 1111 return (error); 1112 1113 /* RX return ring */ 1114 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_RX_RETURN_RING_SZ, 1115 &sc->ti_cdata.ti_rx_return_ring_tag, 1116 (uint8_t **)&sc->ti_rdata.ti_rx_return_ring, 1117 &sc->ti_cdata.ti_rx_return_ring_map, 1118 &sc->ti_rdata.ti_rx_return_ring_paddr, "RX return ring"); 1119 if (error) 1120 return (error); 1121 1122 /* Create DMA tag for standard RX mbufs. */ 1123 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 0, 1124 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MCLBYTES, 1, 1125 MCLBYTES, 0, NULL, NULL, &sc->ti_cdata.ti_rx_std_tag); 1126 if (error) { 1127 device_printf(sc->ti_dev, "could not allocate RX dma tag\n"); 1128 return (error); 1129 } 1130 1131 /* Create DMA tag for jumbo RX mbufs. */ 1132 #ifdef TI_SF_BUF_JUMBO 1133 /* 1134 * The VM system will take care of providing aligned pages. Alignment 1135 * is set to 1 here so that busdma resources won't be wasted. 1136 */ 1137 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 0, 1138 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, PAGE_SIZE * 4, 4, 1139 PAGE_SIZE, 0, NULL, NULL, &sc->ti_cdata.ti_rx_jumbo_tag); 1140 #else 1141 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 0, 1142 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MJUM9BYTES, 1, 1143 MJUM9BYTES, 0, NULL, NULL, &sc->ti_cdata.ti_rx_jumbo_tag); 1144 #endif 1145 if (error) { 1146 device_printf(sc->ti_dev, 1147 "could not allocate jumbo RX dma tag\n"); 1148 return (error); 1149 } 1150 1151 /* Create DMA tag for TX mbufs. */ 1152 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 1153 0, BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, 1154 MCLBYTES * TI_MAXTXSEGS, TI_MAXTXSEGS, MCLBYTES, 0, NULL, NULL, 1155 &sc->ti_cdata.ti_tx_tag); 1156 if (error) { 1157 device_printf(sc->ti_dev, "could not allocate TX dma tag\n"); 1158 return (ENOMEM); 1159 } 1160 1161 /* Create DMA maps for RX buffers. */ 1162 for (i = 0; i < TI_STD_RX_RING_CNT; i++) { 1163 error = bus_dmamap_create(sc->ti_cdata.ti_rx_std_tag, 0, 1164 &sc->ti_cdata.ti_rx_std_maps[i]); 1165 if (error) { 1166 device_printf(sc->ti_dev, 1167 "could not create DMA map for RX\n"); 1168 return (error); 1169 } 1170 } 1171 error = bus_dmamap_create(sc->ti_cdata.ti_rx_std_tag, 0, 1172 &sc->ti_cdata.ti_rx_std_sparemap); 1173 if (error) { 1174 device_printf(sc->ti_dev, 1175 "could not create spare DMA map for RX\n"); 1176 return (error); 1177 } 1178 1179 /* Create DMA maps for jumbo RX buffers. */ 1180 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) { 1181 error = bus_dmamap_create(sc->ti_cdata.ti_rx_jumbo_tag, 0, 1182 &sc->ti_cdata.ti_rx_jumbo_maps[i]); 1183 if (error) { 1184 device_printf(sc->ti_dev, 1185 "could not create DMA map for jumbo RX\n"); 1186 return (error); 1187 } 1188 } 1189 error = bus_dmamap_create(sc->ti_cdata.ti_rx_jumbo_tag, 0, 1190 &sc->ti_cdata.ti_rx_jumbo_sparemap); 1191 if (error) { 1192 device_printf(sc->ti_dev, 1193 "could not create spare DMA map for jumbo RX\n"); 1194 return (error); 1195 } 1196 1197 /* Create DMA maps for TX buffers. */ 1198 for (i = 0; i < TI_TX_RING_CNT; i++) { 1199 error = bus_dmamap_create(sc->ti_cdata.ti_tx_tag, 0, 1200 &sc->ti_cdata.ti_txdesc[i].tx_dmamap); 1201 if (error) { 1202 device_printf(sc->ti_dev, 1203 "could not create DMA map for TX\n"); 1204 return (ENOMEM); 1205 } 1206 } 1207 1208 /* Mini ring and TX ring is not available on Tigon 1. */ 1209 if (sc->ti_hwrev == TI_HWREV_TIGON) 1210 return (0); 1211 1212 /* TX ring */ 1213 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_TX_RING_SZ, 1214 &sc->ti_cdata.ti_tx_ring_tag, (uint8_t **)&sc->ti_rdata.ti_tx_ring, 1215 &sc->ti_cdata.ti_tx_ring_map, &sc->ti_rdata.ti_tx_ring_paddr, 1216 "TX ring"); 1217 if (error) 1218 return (error); 1219 1220 /* Mini RX ring */ 1221 error = ti_dma_ring_alloc(sc, TI_RING_ALIGN, TI_MINI_RX_RING_SZ, 1222 &sc->ti_cdata.ti_rx_mini_ring_tag, 1223 (uint8_t **)&sc->ti_rdata.ti_rx_mini_ring, 1224 &sc->ti_cdata.ti_rx_mini_ring_map, 1225 &sc->ti_rdata.ti_rx_mini_ring_paddr, "mini RX ring"); 1226 if (error) 1227 return (error); 1228 1229 /* Create DMA tag for mini RX mbufs. */ 1230 error = bus_dma_tag_create(sc->ti_cdata.ti_parent_tag, 1, 0, 1231 BUS_SPACE_MAXADDR, BUS_SPACE_MAXADDR, NULL, NULL, MHLEN, 1, 1232 MHLEN, 0, NULL, NULL, &sc->ti_cdata.ti_rx_mini_tag); 1233 if (error) { 1234 device_printf(sc->ti_dev, 1235 "could not allocate mini RX dma tag\n"); 1236 return (error); 1237 } 1238 1239 /* Create DMA maps for mini RX buffers. */ 1240 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) { 1241 error = bus_dmamap_create(sc->ti_cdata.ti_rx_mini_tag, 0, 1242 &sc->ti_cdata.ti_rx_mini_maps[i]); 1243 if (error) { 1244 device_printf(sc->ti_dev, 1245 "could not create DMA map for mini RX\n"); 1246 return (error); 1247 } 1248 } 1249 error = bus_dmamap_create(sc->ti_cdata.ti_rx_mini_tag, 0, 1250 &sc->ti_cdata.ti_rx_mini_sparemap); 1251 if (error) { 1252 device_printf(sc->ti_dev, 1253 "could not create spare DMA map for mini RX\n"); 1254 return (error); 1255 } 1256 1257 return (0); 1258 } 1259 1260 static void 1261 ti_dma_free(struct ti_softc *sc) 1262 { 1263 int i; 1264 1265 /* Destroy DMA maps for RX buffers. */ 1266 for (i = 0; i < TI_STD_RX_RING_CNT; i++) { 1267 if (sc->ti_cdata.ti_rx_std_maps[i]) { 1268 bus_dmamap_destroy(sc->ti_cdata.ti_rx_std_tag, 1269 sc->ti_cdata.ti_rx_std_maps[i]); 1270 sc->ti_cdata.ti_rx_std_maps[i] = NULL; 1271 } 1272 } 1273 if (sc->ti_cdata.ti_rx_std_sparemap) { 1274 bus_dmamap_destroy(sc->ti_cdata.ti_rx_std_tag, 1275 sc->ti_cdata.ti_rx_std_sparemap); 1276 sc->ti_cdata.ti_rx_std_sparemap = NULL; 1277 } 1278 if (sc->ti_cdata.ti_rx_std_tag) { 1279 bus_dma_tag_destroy(sc->ti_cdata.ti_rx_std_tag); 1280 sc->ti_cdata.ti_rx_std_tag = NULL; 1281 } 1282 1283 /* Destroy DMA maps for jumbo RX buffers. */ 1284 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) { 1285 if (sc->ti_cdata.ti_rx_jumbo_maps[i]) { 1286 bus_dmamap_destroy(sc->ti_cdata.ti_rx_jumbo_tag, 1287 sc->ti_cdata.ti_rx_jumbo_maps[i]); 1288 sc->ti_cdata.ti_rx_jumbo_maps[i] = NULL; 1289 } 1290 } 1291 if (sc->ti_cdata.ti_rx_jumbo_sparemap) { 1292 bus_dmamap_destroy(sc->ti_cdata.ti_rx_jumbo_tag, 1293 sc->ti_cdata.ti_rx_jumbo_sparemap); 1294 sc->ti_cdata.ti_rx_jumbo_sparemap = NULL; 1295 } 1296 if (sc->ti_cdata.ti_rx_jumbo_tag) { 1297 bus_dma_tag_destroy(sc->ti_cdata.ti_rx_jumbo_tag); 1298 sc->ti_cdata.ti_rx_jumbo_tag = NULL; 1299 } 1300 1301 /* Destroy DMA maps for mini RX buffers. */ 1302 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) { 1303 if (sc->ti_cdata.ti_rx_mini_maps[i]) { 1304 bus_dmamap_destroy(sc->ti_cdata.ti_rx_mini_tag, 1305 sc->ti_cdata.ti_rx_mini_maps[i]); 1306 sc->ti_cdata.ti_rx_mini_maps[i] = NULL; 1307 } 1308 } 1309 if (sc->ti_cdata.ti_rx_mini_sparemap) { 1310 bus_dmamap_destroy(sc->ti_cdata.ti_rx_mini_tag, 1311 sc->ti_cdata.ti_rx_mini_sparemap); 1312 sc->ti_cdata.ti_rx_mini_sparemap = NULL; 1313 } 1314 if (sc->ti_cdata.ti_rx_mini_tag) { 1315 bus_dma_tag_destroy(sc->ti_cdata.ti_rx_mini_tag); 1316 sc->ti_cdata.ti_rx_mini_tag = NULL; 1317 } 1318 1319 /* Destroy DMA maps for TX buffers. */ 1320 for (i = 0; i < TI_TX_RING_CNT; i++) { 1321 if (sc->ti_cdata.ti_txdesc[i].tx_dmamap) { 1322 bus_dmamap_destroy(sc->ti_cdata.ti_tx_tag, 1323 sc->ti_cdata.ti_txdesc[i].tx_dmamap); 1324 sc->ti_cdata.ti_txdesc[i].tx_dmamap = NULL; 1325 } 1326 } 1327 if (sc->ti_cdata.ti_tx_tag) { 1328 bus_dma_tag_destroy(sc->ti_cdata.ti_tx_tag); 1329 sc->ti_cdata.ti_tx_tag = NULL; 1330 } 1331 1332 /* Destroy standard RX ring. */ 1333 ti_dma_ring_free(sc, &sc->ti_cdata.ti_rx_std_ring_tag, 1334 (void *)&sc->ti_rdata.ti_rx_std_ring, 1335 sc->ti_cdata.ti_rx_std_ring_map, 1336 &sc->ti_rdata.ti_rx_std_ring_paddr); 1337 /* Destroy jumbo RX ring. */ 1338 ti_dma_ring_free(sc, &sc->ti_cdata.ti_rx_jumbo_ring_tag, 1339 (void *)&sc->ti_rdata.ti_rx_jumbo_ring, 1340 sc->ti_cdata.ti_rx_jumbo_ring_map, 1341 &sc->ti_rdata.ti_rx_jumbo_ring_paddr); 1342 /* Destroy mini RX ring. */ 1343 ti_dma_ring_free(sc, &sc->ti_cdata.ti_rx_mini_ring_tag, 1344 (void *)&sc->ti_rdata.ti_rx_mini_ring, 1345 sc->ti_cdata.ti_rx_mini_ring_map, 1346 &sc->ti_rdata.ti_rx_mini_ring_paddr); 1347 /* Destroy RX return ring. */ 1348 ti_dma_ring_free(sc, &sc->ti_cdata.ti_rx_return_ring_tag, 1349 (void *)&sc->ti_rdata.ti_rx_return_ring, 1350 sc->ti_cdata.ti_rx_return_ring_map, 1351 &sc->ti_rdata.ti_rx_return_ring_paddr); 1352 /* Destroy TX ring. */ 1353 ti_dma_ring_free(sc, &sc->ti_cdata.ti_tx_ring_tag, 1354 (void *)&sc->ti_rdata.ti_tx_ring, sc->ti_cdata.ti_tx_ring_map, 1355 &sc->ti_rdata.ti_tx_ring_paddr); 1356 /* Destroy status block. */ 1357 ti_dma_ring_free(sc, &sc->ti_cdata.ti_status_tag, 1358 (void *)&sc->ti_rdata.ti_status, sc->ti_cdata.ti_status_map, 1359 &sc->ti_rdata.ti_status_paddr); 1360 /* Destroy event ring. */ 1361 ti_dma_ring_free(sc, &sc->ti_cdata.ti_event_ring_tag, 1362 (void *)&sc->ti_rdata.ti_event_ring, 1363 sc->ti_cdata.ti_event_ring_map, &sc->ti_rdata.ti_event_ring_paddr); 1364 /* Destroy GIB */ 1365 ti_dma_ring_free(sc, &sc->ti_cdata.ti_gib_tag, 1366 (void *)&sc->ti_rdata.ti_info, sc->ti_cdata.ti_gib_map, 1367 &sc->ti_rdata.ti_info_paddr); 1368 1369 /* Destroy the parent tag. */ 1370 if (sc->ti_cdata.ti_parent_tag) { 1371 bus_dma_tag_destroy(sc->ti_cdata.ti_parent_tag); 1372 sc->ti_cdata.ti_parent_tag = NULL; 1373 } 1374 } 1375 1376 /* 1377 * Intialize a standard receive ring descriptor. 1378 */ 1379 static int 1380 ti_newbuf_std(struct ti_softc *sc, int i) 1381 { 1382 bus_dmamap_t map; 1383 bus_dma_segment_t segs[1]; 1384 struct mbuf *m; 1385 struct ti_rx_desc *r; 1386 int error, nsegs; 1387 1388 m = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 1389 if (m == NULL) 1390 return (ENOBUFS); 1391 m->m_len = m->m_pkthdr.len = MCLBYTES; 1392 m_adj(m, ETHER_ALIGN); 1393 1394 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_rx_std_tag, 1395 sc->ti_cdata.ti_rx_std_sparemap, m, segs, &nsegs, 0); 1396 if (error != 0) { 1397 m_freem(m); 1398 return (error); 1399 } 1400 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 1401 1402 if (sc->ti_cdata.ti_rx_std_chain[i] != NULL) { 1403 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_tag, 1404 sc->ti_cdata.ti_rx_std_maps[i], BUS_DMASYNC_POSTREAD); 1405 bus_dmamap_unload(sc->ti_cdata.ti_rx_std_tag, 1406 sc->ti_cdata.ti_rx_std_maps[i]); 1407 } 1408 1409 map = sc->ti_cdata.ti_rx_std_maps[i]; 1410 sc->ti_cdata.ti_rx_std_maps[i] = sc->ti_cdata.ti_rx_std_sparemap; 1411 sc->ti_cdata.ti_rx_std_sparemap = map; 1412 sc->ti_cdata.ti_rx_std_chain[i] = m; 1413 1414 r = &sc->ti_rdata.ti_rx_std_ring[i]; 1415 ti_hostaddr64(&r->ti_addr, segs[0].ds_addr); 1416 r->ti_len = segs[0].ds_len; 1417 r->ti_type = TI_BDTYPE_RECV_BD; 1418 r->ti_flags = 0; 1419 r->ti_vlan_tag = 0; 1420 r->ti_tcp_udp_cksum = 0; 1421 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM) 1422 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 1423 r->ti_idx = i; 1424 1425 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_tag, 1426 sc->ti_cdata.ti_rx_std_maps[i], BUS_DMASYNC_PREREAD); 1427 return (0); 1428 } 1429 1430 /* 1431 * Intialize a mini receive ring descriptor. This only applies to 1432 * the Tigon 2. 1433 */ 1434 static int 1435 ti_newbuf_mini(struct ti_softc *sc, int i) 1436 { 1437 bus_dmamap_t map; 1438 bus_dma_segment_t segs[1]; 1439 struct mbuf *m; 1440 struct ti_rx_desc *r; 1441 int error, nsegs; 1442 1443 MGETHDR(m, M_NOWAIT, MT_DATA); 1444 if (m == NULL) 1445 return (ENOBUFS); 1446 m->m_len = m->m_pkthdr.len = MHLEN; 1447 m_adj(m, ETHER_ALIGN); 1448 1449 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_rx_mini_tag, 1450 sc->ti_cdata.ti_rx_mini_sparemap, m, segs, &nsegs, 0); 1451 if (error != 0) { 1452 m_freem(m); 1453 return (error); 1454 } 1455 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 1456 1457 if (sc->ti_cdata.ti_rx_mini_chain[i] != NULL) { 1458 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_tag, 1459 sc->ti_cdata.ti_rx_mini_maps[i], BUS_DMASYNC_POSTREAD); 1460 bus_dmamap_unload(sc->ti_cdata.ti_rx_mini_tag, 1461 sc->ti_cdata.ti_rx_mini_maps[i]); 1462 } 1463 1464 map = sc->ti_cdata.ti_rx_mini_maps[i]; 1465 sc->ti_cdata.ti_rx_mini_maps[i] = sc->ti_cdata.ti_rx_mini_sparemap; 1466 sc->ti_cdata.ti_rx_mini_sparemap = map; 1467 sc->ti_cdata.ti_rx_mini_chain[i] = m; 1468 1469 r = &sc->ti_rdata.ti_rx_mini_ring[i]; 1470 ti_hostaddr64(&r->ti_addr, segs[0].ds_addr); 1471 r->ti_len = segs[0].ds_len; 1472 r->ti_type = TI_BDTYPE_RECV_BD; 1473 r->ti_flags = TI_BDFLAG_MINI_RING; 1474 r->ti_vlan_tag = 0; 1475 r->ti_tcp_udp_cksum = 0; 1476 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM) 1477 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 1478 r->ti_idx = i; 1479 1480 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_tag, 1481 sc->ti_cdata.ti_rx_mini_maps[i], BUS_DMASYNC_PREREAD); 1482 return (0); 1483 } 1484 1485 #ifndef TI_SF_BUF_JUMBO 1486 1487 /* 1488 * Initialize a jumbo receive ring descriptor. This allocates 1489 * a jumbo buffer from the pool managed internally by the driver. 1490 */ 1491 static int 1492 ti_newbuf_jumbo(struct ti_softc *sc, int i, struct mbuf *dummy) 1493 { 1494 bus_dmamap_t map; 1495 bus_dma_segment_t segs[1]; 1496 struct mbuf *m; 1497 struct ti_rx_desc *r; 1498 int error, nsegs; 1499 1500 (void)dummy; 1501 1502 m = m_getjcl(M_NOWAIT, MT_DATA, M_PKTHDR, MJUM9BYTES); 1503 if (m == NULL) 1504 return (ENOBUFS); 1505 m->m_len = m->m_pkthdr.len = MJUM9BYTES; 1506 m_adj(m, ETHER_ALIGN); 1507 1508 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_rx_jumbo_tag, 1509 sc->ti_cdata.ti_rx_jumbo_sparemap, m, segs, &nsegs, 0); 1510 if (error != 0) { 1511 m_freem(m); 1512 return (error); 1513 } 1514 KASSERT(nsegs == 1, ("%s: %d segments returned!", __func__, nsegs)); 1515 1516 if (sc->ti_cdata.ti_rx_jumbo_chain[i] != NULL) { 1517 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag, 1518 sc->ti_cdata.ti_rx_jumbo_maps[i], BUS_DMASYNC_POSTREAD); 1519 bus_dmamap_unload(sc->ti_cdata.ti_rx_jumbo_tag, 1520 sc->ti_cdata.ti_rx_jumbo_maps[i]); 1521 } 1522 1523 map = sc->ti_cdata.ti_rx_jumbo_maps[i]; 1524 sc->ti_cdata.ti_rx_jumbo_maps[i] = sc->ti_cdata.ti_rx_jumbo_sparemap; 1525 sc->ti_cdata.ti_rx_jumbo_sparemap = map; 1526 sc->ti_cdata.ti_rx_jumbo_chain[i] = m; 1527 1528 r = &sc->ti_rdata.ti_rx_jumbo_ring[i]; 1529 ti_hostaddr64(&r->ti_addr, segs[0].ds_addr); 1530 r->ti_len = segs[0].ds_len; 1531 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD; 1532 r->ti_flags = TI_BDFLAG_JUMBO_RING; 1533 r->ti_vlan_tag = 0; 1534 r->ti_tcp_udp_cksum = 0; 1535 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM) 1536 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 1537 r->ti_idx = i; 1538 1539 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag, 1540 sc->ti_cdata.ti_rx_jumbo_maps[i], BUS_DMASYNC_PREREAD); 1541 return (0); 1542 } 1543 1544 #else 1545 1546 #if (PAGE_SIZE == 4096) 1547 #define NPAYLOAD 2 1548 #else 1549 #define NPAYLOAD 1 1550 #endif 1551 1552 #define TCP_HDR_LEN (52 + sizeof(struct ether_header)) 1553 #define UDP_HDR_LEN (28 + sizeof(struct ether_header)) 1554 #define NFS_HDR_LEN (UDP_HDR_LEN) 1555 static int HDR_LEN = TCP_HDR_LEN; 1556 1557 /* 1558 * Initialize a jumbo receive ring descriptor. This allocates 1559 * a jumbo buffer from the pool managed internally by the driver. 1560 */ 1561 static int 1562 ti_newbuf_jumbo(struct ti_softc *sc, int idx, struct mbuf *m_old) 1563 { 1564 bus_dmamap_t map; 1565 struct mbuf *cur, *m_new = NULL; 1566 struct mbuf *m[3] = {NULL, NULL, NULL}; 1567 struct ti_rx_desc_ext *r; 1568 vm_page_t frame; 1569 /* 1 extra buf to make nobufs easy*/ 1570 struct sf_buf *sf[3] = {NULL, NULL, NULL}; 1571 int i; 1572 bus_dma_segment_t segs[4]; 1573 int nsegs; 1574 1575 if (m_old != NULL) { 1576 m_new = m_old; 1577 cur = m_old->m_next; 1578 for (i = 0; i <= NPAYLOAD; i++){ 1579 m[i] = cur; 1580 cur = cur->m_next; 1581 } 1582 } else { 1583 /* Allocate the mbufs. */ 1584 MGETHDR(m_new, M_NOWAIT, MT_DATA); 1585 if (m_new == NULL) { 1586 device_printf(sc->ti_dev, "mbuf allocation failed " 1587 "-- packet dropped!\n"); 1588 goto nobufs; 1589 } 1590 MGET(m[NPAYLOAD], M_NOWAIT, MT_DATA); 1591 if (m[NPAYLOAD] == NULL) { 1592 device_printf(sc->ti_dev, "cluster mbuf allocation " 1593 "failed -- packet dropped!\n"); 1594 goto nobufs; 1595 } 1596 if (!(MCLGET(m[NPAYLOAD], M_NOWAIT))) { 1597 device_printf(sc->ti_dev, "mbuf allocation failed " 1598 "-- packet dropped!\n"); 1599 goto nobufs; 1600 } 1601 m[NPAYLOAD]->m_len = MCLBYTES; 1602 1603 for (i = 0; i < NPAYLOAD; i++){ 1604 MGET(m[i], M_NOWAIT, MT_DATA); 1605 if (m[i] == NULL) { 1606 device_printf(sc->ti_dev, "mbuf allocation " 1607 "failed -- packet dropped!\n"); 1608 goto nobufs; 1609 } 1610 frame = vm_page_alloc_noobj(VM_ALLOC_INTERRUPT | 1611 VM_ALLOC_WIRED); 1612 if (frame == NULL) { 1613 device_printf(sc->ti_dev, "buffer allocation " 1614 "failed -- packet dropped!\n"); 1615 printf(" index %d page %d\n", idx, i); 1616 goto nobufs; 1617 } 1618 sf[i] = sf_buf_alloc(frame, SFB_NOWAIT); 1619 if (sf[i] == NULL) { 1620 vm_page_unwire_noq(frame); 1621 vm_page_free(frame); 1622 device_printf(sc->ti_dev, "buffer allocation " 1623 "failed -- packet dropped!\n"); 1624 printf(" index %d page %d\n", idx, i); 1625 goto nobufs; 1626 } 1627 } 1628 for (i = 0; i < NPAYLOAD; i++){ 1629 /* Attach the buffer to the mbuf. */ 1630 m[i]->m_data = (void *)sf_buf_kva(sf[i]); 1631 m[i]->m_len = PAGE_SIZE; 1632 MEXTADD(m[i], sf_buf_kva(sf[i]), PAGE_SIZE, 1633 sf_mext_free, (void*)sf_buf_kva(sf[i]), sf[i], 1634 0, EXT_DISPOSABLE); 1635 m[i]->m_next = m[i+1]; 1636 } 1637 /* link the buffers to the header */ 1638 m_new->m_next = m[0]; 1639 m_new->m_data += ETHER_ALIGN; 1640 if (sc->ti_hdrsplit) 1641 m_new->m_len = MHLEN - ETHER_ALIGN; 1642 else 1643 m_new->m_len = HDR_LEN; 1644 m_new->m_pkthdr.len = NPAYLOAD * PAGE_SIZE + m_new->m_len; 1645 } 1646 1647 /* Set up the descriptor. */ 1648 r = &sc->ti_rdata.ti_rx_jumbo_ring[idx]; 1649 sc->ti_cdata.ti_rx_jumbo_chain[idx] = m_new; 1650 map = sc->ti_cdata.ti_rx_jumbo_maps[i]; 1651 if (bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_rx_jumbo_tag, map, m_new, 1652 segs, &nsegs, 0)) 1653 return (ENOBUFS); 1654 if ((nsegs < 1) || (nsegs > 4)) 1655 return (ENOBUFS); 1656 ti_hostaddr64(&r->ti_addr0, segs[0].ds_addr); 1657 r->ti_len0 = m_new->m_len; 1658 1659 ti_hostaddr64(&r->ti_addr1, segs[1].ds_addr); 1660 r->ti_len1 = PAGE_SIZE; 1661 1662 ti_hostaddr64(&r->ti_addr2, segs[2].ds_addr); 1663 r->ti_len2 = m[1]->m_ext.ext_size; /* could be PAGE_SIZE or MCLBYTES */ 1664 1665 if (PAGE_SIZE == 4096) { 1666 ti_hostaddr64(&r->ti_addr3, segs[3].ds_addr); 1667 r->ti_len3 = MCLBYTES; 1668 } else { 1669 r->ti_len3 = 0; 1670 } 1671 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD; 1672 1673 r->ti_flags = TI_BDFLAG_JUMBO_RING|TI_RCB_FLAG_USE_EXT_RX_BD; 1674 1675 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM) 1676 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM|TI_BDFLAG_IP_CKSUM; 1677 1678 r->ti_idx = idx; 1679 1680 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag, map, BUS_DMASYNC_PREREAD); 1681 return (0); 1682 1683 nobufs: 1684 1685 /* 1686 * Warning! : 1687 * This can only be called before the mbufs are strung together. 1688 * If the mbufs are strung together, m_freem() will free the chain, 1689 * so that the later mbufs will be freed multiple times. 1690 */ 1691 if (m_new) 1692 m_freem(m_new); 1693 1694 for (i = 0; i < 3; i++) { 1695 if (m[i]) 1696 m_freem(m[i]); 1697 if (sf[i]) 1698 sf_mext_free((void *)sf_buf_kva(sf[i]), sf[i]); 1699 } 1700 return (ENOBUFS); 1701 } 1702 #endif 1703 1704 /* 1705 * The standard receive ring has 512 entries in it. At 2K per mbuf cluster, 1706 * that's 1MB or memory, which is a lot. For now, we fill only the first 1707 * 256 ring entries and hope that our CPU is fast enough to keep up with 1708 * the NIC. 1709 */ 1710 static int 1711 ti_init_rx_ring_std(struct ti_softc *sc) 1712 { 1713 int i; 1714 struct ti_cmd_desc cmd; 1715 1716 for (i = 0; i < TI_STD_RX_RING_CNT; i++) { 1717 if (ti_newbuf_std(sc, i) != 0) 1718 return (ENOBUFS); 1719 } 1720 1721 sc->ti_std = TI_STD_RX_RING_CNT - 1; 1722 TI_UPDATE_STDPROD(sc, TI_STD_RX_RING_CNT - 1); 1723 1724 return (0); 1725 } 1726 1727 static void 1728 ti_free_rx_ring_std(struct ti_softc *sc) 1729 { 1730 bus_dmamap_t map; 1731 int i; 1732 1733 for (i = 0; i < TI_STD_RX_RING_CNT; i++) { 1734 if (sc->ti_cdata.ti_rx_std_chain[i] != NULL) { 1735 map = sc->ti_cdata.ti_rx_std_maps[i]; 1736 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_tag, map, 1737 BUS_DMASYNC_POSTREAD); 1738 bus_dmamap_unload(sc->ti_cdata.ti_rx_std_tag, map); 1739 m_freem(sc->ti_cdata.ti_rx_std_chain[i]); 1740 sc->ti_cdata.ti_rx_std_chain[i] = NULL; 1741 } 1742 } 1743 bzero(sc->ti_rdata.ti_rx_std_ring, TI_STD_RX_RING_SZ); 1744 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_ring_tag, 1745 sc->ti_cdata.ti_rx_std_ring_map, BUS_DMASYNC_PREWRITE); 1746 } 1747 1748 static int 1749 ti_init_rx_ring_jumbo(struct ti_softc *sc) 1750 { 1751 struct ti_cmd_desc cmd; 1752 int i; 1753 1754 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) { 1755 if (ti_newbuf_jumbo(sc, i, NULL) != 0) 1756 return (ENOBUFS); 1757 } 1758 1759 sc->ti_jumbo = TI_JUMBO_RX_RING_CNT - 1; 1760 TI_UPDATE_JUMBOPROD(sc, TI_JUMBO_RX_RING_CNT - 1); 1761 1762 return (0); 1763 } 1764 1765 static void 1766 ti_free_rx_ring_jumbo(struct ti_softc *sc) 1767 { 1768 bus_dmamap_t map; 1769 int i; 1770 1771 for (i = 0; i < TI_JUMBO_RX_RING_CNT; i++) { 1772 if (sc->ti_cdata.ti_rx_jumbo_chain[i] != NULL) { 1773 map = sc->ti_cdata.ti_rx_jumbo_maps[i]; 1774 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag, map, 1775 BUS_DMASYNC_POSTREAD); 1776 bus_dmamap_unload(sc->ti_cdata.ti_rx_jumbo_tag, map); 1777 m_freem(sc->ti_cdata.ti_rx_jumbo_chain[i]); 1778 sc->ti_cdata.ti_rx_jumbo_chain[i] = NULL; 1779 } 1780 } 1781 bzero(sc->ti_rdata.ti_rx_jumbo_ring, TI_JUMBO_RX_RING_SZ); 1782 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_ring_tag, 1783 sc->ti_cdata.ti_rx_jumbo_ring_map, BUS_DMASYNC_PREWRITE); 1784 } 1785 1786 static int 1787 ti_init_rx_ring_mini(struct ti_softc *sc) 1788 { 1789 int i; 1790 1791 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) { 1792 if (ti_newbuf_mini(sc, i) != 0) 1793 return (ENOBUFS); 1794 } 1795 1796 sc->ti_mini = TI_MINI_RX_RING_CNT - 1; 1797 TI_UPDATE_MINIPROD(sc, TI_MINI_RX_RING_CNT - 1); 1798 1799 return (0); 1800 } 1801 1802 static void 1803 ti_free_rx_ring_mini(struct ti_softc *sc) 1804 { 1805 bus_dmamap_t map; 1806 int i; 1807 1808 if (sc->ti_rdata.ti_rx_mini_ring == NULL) 1809 return; 1810 1811 for (i = 0; i < TI_MINI_RX_RING_CNT; i++) { 1812 if (sc->ti_cdata.ti_rx_mini_chain[i] != NULL) { 1813 map = sc->ti_cdata.ti_rx_mini_maps[i]; 1814 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_tag, map, 1815 BUS_DMASYNC_POSTREAD); 1816 bus_dmamap_unload(sc->ti_cdata.ti_rx_mini_tag, map); 1817 m_freem(sc->ti_cdata.ti_rx_mini_chain[i]); 1818 sc->ti_cdata.ti_rx_mini_chain[i] = NULL; 1819 } 1820 } 1821 bzero(sc->ti_rdata.ti_rx_mini_ring, TI_MINI_RX_RING_SZ); 1822 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_ring_tag, 1823 sc->ti_cdata.ti_rx_mini_ring_map, BUS_DMASYNC_PREWRITE); 1824 } 1825 1826 static void 1827 ti_free_tx_ring(struct ti_softc *sc) 1828 { 1829 struct ti_txdesc *txd; 1830 int i; 1831 1832 if (sc->ti_rdata.ti_tx_ring == NULL) 1833 return; 1834 1835 for (i = 0; i < TI_TX_RING_CNT; i++) { 1836 txd = &sc->ti_cdata.ti_txdesc[i]; 1837 if (txd->tx_m != NULL) { 1838 bus_dmamap_sync(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap, 1839 BUS_DMASYNC_POSTWRITE); 1840 bus_dmamap_unload(sc->ti_cdata.ti_tx_tag, 1841 txd->tx_dmamap); 1842 m_freem(txd->tx_m); 1843 txd->tx_m = NULL; 1844 } 1845 } 1846 bzero(sc->ti_rdata.ti_tx_ring, TI_TX_RING_SZ); 1847 bus_dmamap_sync(sc->ti_cdata.ti_tx_ring_tag, 1848 sc->ti_cdata.ti_tx_ring_map, BUS_DMASYNC_PREWRITE); 1849 } 1850 1851 static int 1852 ti_init_tx_ring(struct ti_softc *sc) 1853 { 1854 struct ti_txdesc *txd; 1855 int i; 1856 1857 STAILQ_INIT(&sc->ti_cdata.ti_txfreeq); 1858 STAILQ_INIT(&sc->ti_cdata.ti_txbusyq); 1859 for (i = 0; i < TI_TX_RING_CNT; i++) { 1860 txd = &sc->ti_cdata.ti_txdesc[i]; 1861 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txfreeq, txd, tx_q); 1862 } 1863 sc->ti_txcnt = 0; 1864 sc->ti_tx_saved_considx = 0; 1865 sc->ti_tx_saved_prodidx = 0; 1866 CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, 0); 1867 return (0); 1868 } 1869 1870 /* 1871 * The Tigon 2 firmware has a new way to add/delete multicast addresses, 1872 * but we have to support the old way too so that Tigon 1 cards will 1873 * work. 1874 */ 1875 static u_int 1876 ti_add_mcast(void *arg, struct sockaddr_dl *sdl, u_int count) 1877 { 1878 struct ti_softc *sc = arg; 1879 struct ti_cmd_desc cmd; 1880 uint16_t *m; 1881 uint32_t ext[2] = {0, 0}; 1882 1883 m = (uint16_t *)LLADDR(sdl); 1884 1885 switch (sc->ti_hwrev) { 1886 case TI_HWREV_TIGON: 1887 CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0])); 1888 CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2])); 1889 TI_DO_CMD(TI_CMD_ADD_MCAST_ADDR, 0, 0); 1890 break; 1891 case TI_HWREV_TIGON_II: 1892 ext[0] = htons(m[0]); 1893 ext[1] = (htons(m[1]) << 16) | htons(m[2]); 1894 TI_DO_CMD_EXT(TI_CMD_EXT_ADD_MCAST, 0, 0, (caddr_t)&ext, 2); 1895 break; 1896 default: 1897 device_printf(sc->ti_dev, "unknown hwrev\n"); 1898 return (0); 1899 } 1900 return (1); 1901 } 1902 1903 static u_int 1904 ti_del_mcast(void *arg, struct sockaddr_dl *sdl, u_int count) 1905 { 1906 struct ti_softc *sc = arg; 1907 struct ti_cmd_desc cmd; 1908 uint16_t *m; 1909 uint32_t ext[2] = {0, 0}; 1910 1911 m = (uint16_t *)LLADDR(sdl); 1912 1913 switch (sc->ti_hwrev) { 1914 case TI_HWREV_TIGON: 1915 CSR_WRITE_4(sc, TI_GCR_MAR0, htons(m[0])); 1916 CSR_WRITE_4(sc, TI_GCR_MAR1, (htons(m[1]) << 16) | htons(m[2])); 1917 TI_DO_CMD(TI_CMD_DEL_MCAST_ADDR, 0, 0); 1918 break; 1919 case TI_HWREV_TIGON_II: 1920 ext[0] = htons(m[0]); 1921 ext[1] = (htons(m[1]) << 16) | htons(m[2]); 1922 TI_DO_CMD_EXT(TI_CMD_EXT_DEL_MCAST, 0, 0, (caddr_t)&ext, 2); 1923 break; 1924 default: 1925 device_printf(sc->ti_dev, "unknown hwrev\n"); 1926 return (0); 1927 } 1928 1929 return (1); 1930 } 1931 1932 /* 1933 * Configure the Tigon's multicast address filter. 1934 * 1935 * The actual multicast table management is a bit of a pain, thanks to 1936 * slight brain damage on the part of both Alteon and us. With our 1937 * multicast code, we are only alerted when the multicast address table 1938 * changes and at that point we only have the current list of addresses: 1939 * we only know the current state, not the previous state, so we don't 1940 * actually know what addresses were removed or added. The firmware has 1941 * state, but we can't get our grubby mits on it, and there is no 'delete 1942 * all multicast addresses' command. Hence, we have to maintain our own 1943 * state so we know what addresses have been programmed into the NIC at 1944 * any given time. 1945 */ 1946 static void 1947 ti_setmulti(struct ti_softc *sc) 1948 { 1949 struct ifnet *ifp; 1950 struct ti_cmd_desc cmd; 1951 uint32_t intrs; 1952 1953 TI_LOCK_ASSERT(sc); 1954 1955 ifp = sc->ti_ifp; 1956 1957 if (ifp->if_flags & IFF_ALLMULTI) { 1958 TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_ENB, 0); 1959 return; 1960 } else { 1961 TI_DO_CMD(TI_CMD_SET_ALLMULTI, TI_CMD_CODE_ALLMULTI_DIS, 0); 1962 } 1963 1964 /* Disable interrupts. */ 1965 intrs = CSR_READ_4(sc, TI_MB_HOSTINTR); 1966 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); 1967 1968 /* First, zot all the existing filters. */ 1969 if_foreach_llmaddr(ifp, ti_del_mcast, sc); 1970 1971 /* Now program new ones. */ 1972 if_foreach_llmaddr(ifp, ti_add_mcast, sc); 1973 1974 /* Re-enable interrupts. */ 1975 CSR_WRITE_4(sc, TI_MB_HOSTINTR, intrs); 1976 } 1977 1978 /* 1979 * Check to see if the BIOS has configured us for a 64 bit slot when 1980 * we aren't actually in one. If we detect this condition, we can work 1981 * around it on the Tigon 2 by setting a bit in the PCI state register, 1982 * but for the Tigon 1 we must give up and abort the interface attach. 1983 */ 1984 static int 1985 ti_64bitslot_war(struct ti_softc *sc) 1986 { 1987 1988 if (!(CSR_READ_4(sc, TI_PCI_STATE) & TI_PCISTATE_32BIT_BUS)) { 1989 CSR_WRITE_4(sc, 0x600, 0); 1990 CSR_WRITE_4(sc, 0x604, 0); 1991 CSR_WRITE_4(sc, 0x600, 0x5555AAAA); 1992 if (CSR_READ_4(sc, 0x604) == 0x5555AAAA) { 1993 if (sc->ti_hwrev == TI_HWREV_TIGON) 1994 return (EINVAL); 1995 else { 1996 TI_SETBIT(sc, TI_PCI_STATE, 1997 TI_PCISTATE_32BIT_BUS); 1998 return (0); 1999 } 2000 } 2001 } 2002 2003 return (0); 2004 } 2005 2006 /* 2007 * Do endian, PCI and DMA initialization. Also check the on-board ROM 2008 * self-test results. 2009 */ 2010 static int 2011 ti_chipinit(struct ti_softc *sc) 2012 { 2013 uint32_t cacheline; 2014 uint32_t pci_writemax = 0; 2015 uint32_t hdrsplit; 2016 2017 /* Initialize link to down state. */ 2018 sc->ti_linkstat = TI_EV_CODE_LINK_DOWN; 2019 2020 /* Set endianness before we access any non-PCI registers. */ 2021 #if 0 && BYTE_ORDER == BIG_ENDIAN 2022 CSR_WRITE_4(sc, TI_MISC_HOST_CTL, 2023 TI_MHC_BIGENDIAN_INIT | (TI_MHC_BIGENDIAN_INIT << 24)); 2024 #else 2025 CSR_WRITE_4(sc, TI_MISC_HOST_CTL, 2026 TI_MHC_LITTLEENDIAN_INIT | (TI_MHC_LITTLEENDIAN_INIT << 24)); 2027 #endif 2028 2029 /* Check the ROM failed bit to see if self-tests passed. */ 2030 if (CSR_READ_4(sc, TI_CPU_STATE) & TI_CPUSTATE_ROMFAIL) { 2031 device_printf(sc->ti_dev, "board self-diagnostics failed!\n"); 2032 return (ENODEV); 2033 } 2034 2035 /* Halt the CPU. */ 2036 TI_SETBIT(sc, TI_CPU_STATE, TI_CPUSTATE_HALT); 2037 2038 /* Figure out the hardware revision. */ 2039 switch (CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_CHIP_REV_MASK) { 2040 case TI_REV_TIGON_I: 2041 sc->ti_hwrev = TI_HWREV_TIGON; 2042 break; 2043 case TI_REV_TIGON_II: 2044 sc->ti_hwrev = TI_HWREV_TIGON_II; 2045 break; 2046 default: 2047 device_printf(sc->ti_dev, "unsupported chip revision\n"); 2048 return (ENODEV); 2049 } 2050 2051 /* Do special setup for Tigon 2. */ 2052 if (sc->ti_hwrev == TI_HWREV_TIGON_II) { 2053 TI_SETBIT(sc, TI_CPU_CTL_B, TI_CPUSTATE_HALT); 2054 TI_SETBIT(sc, TI_MISC_LOCAL_CTL, TI_MLC_SRAM_BANK_512K); 2055 TI_SETBIT(sc, TI_MISC_CONF, TI_MCR_SRAM_SYNCHRONOUS); 2056 } 2057 2058 /* 2059 * We don't have firmware source for the Tigon 1, so Tigon 1 boards 2060 * can't do header splitting. 2061 */ 2062 #ifdef TI_JUMBO_HDRSPLIT 2063 if (sc->ti_hwrev != TI_HWREV_TIGON) 2064 sc->ti_hdrsplit = 1; 2065 else 2066 device_printf(sc->ti_dev, 2067 "can't do header splitting on a Tigon I board\n"); 2068 #endif /* TI_JUMBO_HDRSPLIT */ 2069 2070 /* Set up the PCI state register. */ 2071 CSR_WRITE_4(sc, TI_PCI_STATE, TI_PCI_READ_CMD|TI_PCI_WRITE_CMD); 2072 if (sc->ti_hwrev == TI_HWREV_TIGON_II) { 2073 TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_USE_MEM_RD_MULT); 2074 } 2075 2076 /* Clear the read/write max DMA parameters. */ 2077 TI_CLRBIT(sc, TI_PCI_STATE, (TI_PCISTATE_WRITE_MAXDMA| 2078 TI_PCISTATE_READ_MAXDMA)); 2079 2080 /* Get cache line size. */ 2081 cacheline = CSR_READ_4(sc, TI_PCI_BIST) & 0xFF; 2082 2083 /* 2084 * If the system has set enabled the PCI memory write 2085 * and invalidate command in the command register, set 2086 * the write max parameter accordingly. This is necessary 2087 * to use MWI with the Tigon 2. 2088 */ 2089 if (CSR_READ_4(sc, TI_PCI_CMDSTAT) & PCIM_CMD_MWIEN) { 2090 switch (cacheline) { 2091 case 1: 2092 case 4: 2093 case 8: 2094 case 16: 2095 case 32: 2096 case 64: 2097 break; 2098 default: 2099 /* Disable PCI memory write and invalidate. */ 2100 if (bootverbose) 2101 device_printf(sc->ti_dev, "cache line size %d" 2102 " not supported; disabling PCI MWI\n", 2103 cacheline); 2104 CSR_WRITE_4(sc, TI_PCI_CMDSTAT, CSR_READ_4(sc, 2105 TI_PCI_CMDSTAT) & ~PCIM_CMD_MWIEN); 2106 break; 2107 } 2108 } 2109 2110 TI_SETBIT(sc, TI_PCI_STATE, pci_writemax); 2111 2112 /* This sets the min dma param all the way up (0xff). */ 2113 TI_SETBIT(sc, TI_PCI_STATE, TI_PCISTATE_MINDMA); 2114 2115 if (sc->ti_hdrsplit) 2116 hdrsplit = TI_OPMODE_JUMBO_HDRSPLIT; 2117 else 2118 hdrsplit = 0; 2119 2120 /* Configure DMA variables. */ 2121 #if BYTE_ORDER == BIG_ENDIAN 2122 CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_BD | 2123 TI_OPMODE_BYTESWAP_DATA | TI_OPMODE_WORDSWAP_BD | 2124 TI_OPMODE_WARN_ENB | TI_OPMODE_FATAL_ENB | 2125 TI_OPMODE_DONT_FRAG_JUMBO | hdrsplit); 2126 #else /* BYTE_ORDER */ 2127 CSR_WRITE_4(sc, TI_GCR_OPMODE, TI_OPMODE_BYTESWAP_DATA| 2128 TI_OPMODE_WORDSWAP_BD|TI_OPMODE_DONT_FRAG_JUMBO| 2129 TI_OPMODE_WARN_ENB|TI_OPMODE_FATAL_ENB | hdrsplit); 2130 #endif /* BYTE_ORDER */ 2131 2132 /* 2133 * Only allow 1 DMA channel to be active at a time. 2134 * I don't think this is a good idea, but without it 2135 * the firmware racks up lots of nicDmaReadRingFull 2136 * errors. This is not compatible with hardware checksums. 2137 */ 2138 if ((sc->ti_ifp->if_capenable & (IFCAP_TXCSUM | IFCAP_RXCSUM)) == 0) 2139 TI_SETBIT(sc, TI_GCR_OPMODE, TI_OPMODE_1_DMA_ACTIVE); 2140 2141 /* Recommended settings from Tigon manual. */ 2142 CSR_WRITE_4(sc, TI_GCR_DMA_WRITECFG, TI_DMA_STATE_THRESH_8W); 2143 CSR_WRITE_4(sc, TI_GCR_DMA_READCFG, TI_DMA_STATE_THRESH_8W); 2144 2145 if (ti_64bitslot_war(sc)) { 2146 device_printf(sc->ti_dev, "bios thinks we're in a 64 bit slot, " 2147 "but we aren't"); 2148 return (EINVAL); 2149 } 2150 2151 return (0); 2152 } 2153 2154 /* 2155 * Initialize the general information block and firmware, and 2156 * start the CPU(s) running. 2157 */ 2158 static int 2159 ti_gibinit(struct ti_softc *sc) 2160 { 2161 struct ifnet *ifp; 2162 struct ti_rcb *rcb; 2163 int i; 2164 2165 TI_LOCK_ASSERT(sc); 2166 2167 ifp = sc->ti_ifp; 2168 2169 /* Disable interrupts for now. */ 2170 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); 2171 2172 /* Tell the chip where to find the general information block. */ 2173 CSR_WRITE_4(sc, TI_GCR_GENINFO_HI, 2174 (uint64_t)sc->ti_rdata.ti_info_paddr >> 32); 2175 CSR_WRITE_4(sc, TI_GCR_GENINFO_LO, 2176 sc->ti_rdata.ti_info_paddr & 0xFFFFFFFF); 2177 2178 /* Load the firmware into SRAM. */ 2179 ti_loadfw(sc); 2180 2181 /* Set up the contents of the general info and ring control blocks. */ 2182 2183 /* Set up the event ring and producer pointer. */ 2184 bzero(sc->ti_rdata.ti_event_ring, TI_EVENT_RING_SZ); 2185 rcb = &sc->ti_rdata.ti_info->ti_ev_rcb; 2186 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_event_ring_paddr); 2187 rcb->ti_flags = 0; 2188 ti_hostaddr64(&sc->ti_rdata.ti_info->ti_ev_prodidx_ptr, 2189 sc->ti_rdata.ti_status_paddr + 2190 offsetof(struct ti_status, ti_ev_prodidx_r)); 2191 sc->ti_ev_prodidx.ti_idx = 0; 2192 CSR_WRITE_4(sc, TI_GCR_EVENTCONS_IDX, 0); 2193 sc->ti_ev_saved_considx = 0; 2194 2195 /* Set up the command ring and producer mailbox. */ 2196 rcb = &sc->ti_rdata.ti_info->ti_cmd_rcb; 2197 ti_hostaddr64(&rcb->ti_hostaddr, TI_GCR_NIC_ADDR(TI_GCR_CMDRING)); 2198 rcb->ti_flags = 0; 2199 rcb->ti_max_len = 0; 2200 for (i = 0; i < TI_CMD_RING_CNT; i++) { 2201 CSR_WRITE_4(sc, TI_GCR_CMDRING + (i * 4), 0); 2202 } 2203 CSR_WRITE_4(sc, TI_GCR_CMDCONS_IDX, 0); 2204 CSR_WRITE_4(sc, TI_MB_CMDPROD_IDX, 0); 2205 sc->ti_cmd_saved_prodidx = 0; 2206 2207 /* 2208 * Assign the address of the stats refresh buffer. 2209 * We re-use the current stats buffer for this to 2210 * conserve memory. 2211 */ 2212 bzero(&sc->ti_rdata.ti_info->ti_stats, sizeof(struct ti_stats)); 2213 ti_hostaddr64(&sc->ti_rdata.ti_info->ti_refresh_stats_ptr, 2214 sc->ti_rdata.ti_info_paddr + offsetof(struct ti_gib, ti_stats)); 2215 2216 /* Set up the standard receive ring. */ 2217 rcb = &sc->ti_rdata.ti_info->ti_std_rx_rcb; 2218 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_rx_std_ring_paddr); 2219 rcb->ti_max_len = TI_FRAMELEN; 2220 rcb->ti_flags = 0; 2221 if (ifp->if_capenable & IFCAP_RXCSUM) 2222 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM | 2223 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; 2224 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) 2225 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; 2226 2227 /* Set up the jumbo receive ring. */ 2228 rcb = &sc->ti_rdata.ti_info->ti_jumbo_rx_rcb; 2229 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_rx_jumbo_ring_paddr); 2230 2231 #ifndef TI_SF_BUF_JUMBO 2232 rcb->ti_max_len = MJUM9BYTES - ETHER_ALIGN; 2233 rcb->ti_flags = 0; 2234 #else 2235 rcb->ti_max_len = PAGE_SIZE; 2236 rcb->ti_flags = TI_RCB_FLAG_USE_EXT_RX_BD; 2237 #endif 2238 if (ifp->if_capenable & IFCAP_RXCSUM) 2239 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM | 2240 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; 2241 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) 2242 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; 2243 2244 /* 2245 * Set up the mini ring. Only activated on the 2246 * Tigon 2 but the slot in the config block is 2247 * still there on the Tigon 1. 2248 */ 2249 rcb = &sc->ti_rdata.ti_info->ti_mini_rx_rcb; 2250 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_rx_mini_ring_paddr); 2251 rcb->ti_max_len = MHLEN - ETHER_ALIGN; 2252 if (sc->ti_hwrev == TI_HWREV_TIGON) 2253 rcb->ti_flags = TI_RCB_FLAG_RING_DISABLED; 2254 else 2255 rcb->ti_flags = 0; 2256 if (ifp->if_capenable & IFCAP_RXCSUM) 2257 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM | 2258 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; 2259 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) 2260 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; 2261 2262 /* 2263 * Set up the receive return ring. 2264 */ 2265 rcb = &sc->ti_rdata.ti_info->ti_return_rcb; 2266 ti_hostaddr64(&rcb->ti_hostaddr, sc->ti_rdata.ti_rx_return_ring_paddr); 2267 rcb->ti_flags = 0; 2268 rcb->ti_max_len = TI_RETURN_RING_CNT; 2269 ti_hostaddr64(&sc->ti_rdata.ti_info->ti_return_prodidx_ptr, 2270 sc->ti_rdata.ti_status_paddr + 2271 offsetof(struct ti_status, ti_return_prodidx_r)); 2272 2273 /* 2274 * Set up the tx ring. Note: for the Tigon 2, we have the option 2275 * of putting the transmit ring in the host's address space and 2276 * letting the chip DMA it instead of leaving the ring in the NIC's 2277 * memory and accessing it through the shared memory region. We 2278 * do this for the Tigon 2, but it doesn't work on the Tigon 1, 2279 * so we have to revert to the shared memory scheme if we detect 2280 * a Tigon 1 chip. 2281 */ 2282 CSR_WRITE_4(sc, TI_WINBASE, TI_TX_RING_BASE); 2283 if (sc->ti_rdata.ti_tx_ring != NULL) 2284 bzero(sc->ti_rdata.ti_tx_ring, TI_TX_RING_SZ); 2285 rcb = &sc->ti_rdata.ti_info->ti_tx_rcb; 2286 if (sc->ti_hwrev == TI_HWREV_TIGON) 2287 rcb->ti_flags = 0; 2288 else 2289 rcb->ti_flags = TI_RCB_FLAG_HOST_RING; 2290 if (ifp->if_capenable & IFCAP_VLAN_HWTAGGING) 2291 rcb->ti_flags |= TI_RCB_FLAG_VLAN_ASSIST; 2292 if (ifp->if_capenable & IFCAP_TXCSUM) 2293 rcb->ti_flags |= TI_RCB_FLAG_TCP_UDP_CKSUM | 2294 TI_RCB_FLAG_IP_CKSUM | TI_RCB_FLAG_NO_PHDR_CKSUM; 2295 rcb->ti_max_len = TI_TX_RING_CNT; 2296 if (sc->ti_hwrev == TI_HWREV_TIGON) 2297 ti_hostaddr64(&rcb->ti_hostaddr, TI_TX_RING_BASE); 2298 else 2299 ti_hostaddr64(&rcb->ti_hostaddr, 2300 sc->ti_rdata.ti_tx_ring_paddr); 2301 ti_hostaddr64(&sc->ti_rdata.ti_info->ti_tx_considx_ptr, 2302 sc->ti_rdata.ti_status_paddr + 2303 offsetof(struct ti_status, ti_tx_considx_r)); 2304 2305 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag, sc->ti_cdata.ti_gib_map, 2306 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2307 bus_dmamap_sync(sc->ti_cdata.ti_status_tag, sc->ti_cdata.ti_status_map, 2308 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2309 bus_dmamap_sync(sc->ti_cdata.ti_event_ring_tag, 2310 sc->ti_cdata.ti_event_ring_map, 2311 BUS_DMASYNC_PREREAD | BUS_DMASYNC_PREWRITE); 2312 if (sc->ti_rdata.ti_tx_ring != NULL) 2313 bus_dmamap_sync(sc->ti_cdata.ti_tx_ring_tag, 2314 sc->ti_cdata.ti_tx_ring_map, BUS_DMASYNC_PREWRITE); 2315 2316 /* Set up tunables */ 2317 #if 0 2318 if (ifp->if_mtu > ETHERMTU + ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN) 2319 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, 2320 (sc->ti_rx_coal_ticks / 10)); 2321 else 2322 #endif 2323 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, sc->ti_rx_coal_ticks); 2324 CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS, sc->ti_tx_coal_ticks); 2325 CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks); 2326 CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD, sc->ti_rx_max_coal_bds); 2327 CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD, sc->ti_tx_max_coal_bds); 2328 CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO, sc->ti_tx_buf_ratio); 2329 2330 /* Turn interrupts on. */ 2331 CSR_WRITE_4(sc, TI_GCR_MASK_INTRS, 0); 2332 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); 2333 2334 /* Start CPU. */ 2335 TI_CLRBIT(sc, TI_CPU_STATE, (TI_CPUSTATE_HALT|TI_CPUSTATE_STEP)); 2336 2337 return (0); 2338 } 2339 2340 /* 2341 * Probe for a Tigon chip. Check the PCI vendor and device IDs 2342 * against our list and return its name if we find a match. 2343 */ 2344 static int 2345 ti_probe(device_t dev) 2346 { 2347 const struct ti_type *t; 2348 2349 t = ti_devs; 2350 2351 while (t->ti_name != NULL) { 2352 if ((pci_get_vendor(dev) == t->ti_vid) && 2353 (pci_get_device(dev) == t->ti_did)) { 2354 device_set_desc(dev, t->ti_name); 2355 return (BUS_PROBE_DEFAULT); 2356 } 2357 t++; 2358 } 2359 2360 return (ENXIO); 2361 } 2362 2363 static int 2364 ti_attach(device_t dev) 2365 { 2366 struct ifnet *ifp; 2367 struct ti_softc *sc; 2368 int error = 0, rid; 2369 u_char eaddr[6]; 2370 2371 sc = device_get_softc(dev); 2372 sc->ti_dev = dev; 2373 2374 mtx_init(&sc->ti_mtx, device_get_nameunit(dev), MTX_NETWORK_LOCK, 2375 MTX_DEF); 2376 callout_init_mtx(&sc->ti_watchdog, &sc->ti_mtx, 0); 2377 ifmedia_init(&sc->ifmedia, IFM_IMASK, ti_ifmedia_upd, ti_ifmedia_sts); 2378 ifp = sc->ti_ifp = if_alloc(IFT_ETHER); 2379 if (ifp == NULL) { 2380 device_printf(dev, "can not if_alloc()\n"); 2381 error = ENOSPC; 2382 goto fail; 2383 } 2384 sc->ti_ifp->if_hwassist = TI_CSUM_FEATURES; 2385 sc->ti_ifp->if_capabilities = IFCAP_TXCSUM | IFCAP_RXCSUM; 2386 sc->ti_ifp->if_capenable = sc->ti_ifp->if_capabilities; 2387 2388 /* 2389 * Map control/status registers. 2390 */ 2391 pci_enable_busmaster(dev); 2392 2393 rid = PCIR_BAR(0); 2394 sc->ti_res = bus_alloc_resource_any(dev, SYS_RES_MEMORY, &rid, 2395 RF_ACTIVE); 2396 2397 if (sc->ti_res == NULL) { 2398 device_printf(dev, "couldn't map memory\n"); 2399 error = ENXIO; 2400 goto fail; 2401 } 2402 2403 sc->ti_btag = rman_get_bustag(sc->ti_res); 2404 sc->ti_bhandle = rman_get_bushandle(sc->ti_res); 2405 2406 /* Allocate interrupt */ 2407 rid = 0; 2408 2409 sc->ti_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, &rid, 2410 RF_SHAREABLE | RF_ACTIVE); 2411 2412 if (sc->ti_irq == NULL) { 2413 device_printf(dev, "couldn't map interrupt\n"); 2414 error = ENXIO; 2415 goto fail; 2416 } 2417 2418 if (ti_chipinit(sc)) { 2419 device_printf(dev, "chip initialization failed\n"); 2420 error = ENXIO; 2421 goto fail; 2422 } 2423 2424 /* Zero out the NIC's on-board SRAM. */ 2425 ti_mem_zero(sc, 0x2000, 0x100000 - 0x2000); 2426 2427 /* Init again -- zeroing memory may have clobbered some registers. */ 2428 if (ti_chipinit(sc)) { 2429 device_printf(dev, "chip initialization failed\n"); 2430 error = ENXIO; 2431 goto fail; 2432 } 2433 2434 /* 2435 * Get station address from the EEPROM. Note: the manual states 2436 * that the MAC address is at offset 0x8c, however the data is 2437 * stored as two longwords (since that's how it's loaded into 2438 * the NIC). This means the MAC address is actually preceded 2439 * by two zero bytes. We need to skip over those. 2440 */ 2441 if (ti_read_eeprom(sc, eaddr, TI_EE_MAC_OFFSET + 2, ETHER_ADDR_LEN)) { 2442 device_printf(dev, "failed to read station address\n"); 2443 error = ENXIO; 2444 goto fail; 2445 } 2446 2447 /* Allocate working area for memory dump. */ 2448 sc->ti_membuf = malloc(sizeof(uint8_t) * TI_WINLEN, M_DEVBUF, M_NOWAIT); 2449 sc->ti_membuf2 = malloc(sizeof(uint8_t) * TI_WINLEN, M_DEVBUF, 2450 M_NOWAIT); 2451 if (sc->ti_membuf == NULL || sc->ti_membuf2 == NULL) { 2452 device_printf(dev, "cannot allocate memory buffer\n"); 2453 error = ENOMEM; 2454 goto fail; 2455 } 2456 if ((error = ti_dma_alloc(sc)) != 0) 2457 goto fail; 2458 2459 /* 2460 * We really need a better way to tell a 1000baseTX card 2461 * from a 1000baseSX one, since in theory there could be 2462 * OEMed 1000baseTX cards from lame vendors who aren't 2463 * clever enough to change the PCI ID. For the moment 2464 * though, the AceNIC is the only copper card available. 2465 */ 2466 if (pci_get_vendor(dev) == ALT_VENDORID && 2467 pci_get_device(dev) == ALT_DEVICEID_ACENIC_COPPER) 2468 sc->ti_copper = 1; 2469 /* Ok, it's not the only copper card available. */ 2470 if (pci_get_vendor(dev) == NG_VENDORID && 2471 pci_get_device(dev) == NG_DEVICEID_GA620T) 2472 sc->ti_copper = 1; 2473 2474 /* Set default tunable values. */ 2475 ti_sysctl_node(sc); 2476 2477 /* Set up ifnet structure */ 2478 ifp->if_softc = sc; 2479 if_initname(ifp, device_get_name(dev), device_get_unit(dev)); 2480 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 2481 ifp->if_ioctl = ti_ioctl; 2482 ifp->if_start = ti_start; 2483 ifp->if_init = ti_init; 2484 ifp->if_get_counter = ti_get_counter; 2485 ifp->if_baudrate = IF_Gbps(1UL); 2486 ifp->if_snd.ifq_drv_maxlen = TI_TX_RING_CNT - 1; 2487 IFQ_SET_MAXLEN(&ifp->if_snd, ifp->if_snd.ifq_drv_maxlen); 2488 IFQ_SET_READY(&ifp->if_snd); 2489 2490 /* Set up ifmedia support. */ 2491 if (sc->ti_copper) { 2492 /* 2493 * Copper cards allow manual 10/100 mode selection, 2494 * but not manual 1000baseTX mode selection. Why? 2495 * Because currently there's no way to specify the 2496 * master/slave setting through the firmware interface, 2497 * so Alteon decided to just bag it and handle it 2498 * via autonegotiation. 2499 */ 2500 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_10_T, 0, NULL); 2501 ifmedia_add(&sc->ifmedia, 2502 IFM_ETHER|IFM_10_T|IFM_FDX, 0, NULL); 2503 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_100_TX, 0, NULL); 2504 ifmedia_add(&sc->ifmedia, 2505 IFM_ETHER|IFM_100_TX|IFM_FDX, 0, NULL); 2506 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_T, 0, NULL); 2507 ifmedia_add(&sc->ifmedia, 2508 IFM_ETHER|IFM_1000_T|IFM_FDX, 0, NULL); 2509 } else { 2510 /* Fiber cards don't support 10/100 modes. */ 2511 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_1000_SX, 0, NULL); 2512 ifmedia_add(&sc->ifmedia, 2513 IFM_ETHER|IFM_1000_SX|IFM_FDX, 0, NULL); 2514 } 2515 ifmedia_add(&sc->ifmedia, IFM_ETHER|IFM_AUTO, 0, NULL); 2516 ifmedia_set(&sc->ifmedia, IFM_ETHER|IFM_AUTO); 2517 2518 /* 2519 * We're assuming here that card initialization is a sequential 2520 * thing. If it isn't, multiple cards probing at the same time 2521 * could stomp on the list of softcs here. 2522 */ 2523 2524 /* Register the device */ 2525 sc->dev = make_dev(&ti_cdevsw, device_get_unit(dev), UID_ROOT, 2526 GID_OPERATOR, 0600, "ti%d", device_get_unit(dev)); 2527 sc->dev->si_drv1 = sc; 2528 2529 /* 2530 * Call MI attach routine. 2531 */ 2532 ether_ifattach(ifp, eaddr); 2533 2534 /* VLAN capability setup. */ 2535 ifp->if_capabilities |= IFCAP_VLAN_MTU | IFCAP_VLAN_HWCSUM | 2536 IFCAP_VLAN_HWTAGGING; 2537 ifp->if_capenable = ifp->if_capabilities; 2538 /* Tell the upper layer we support VLAN over-sized frames. */ 2539 ifp->if_hdrlen = sizeof(struct ether_vlan_header); 2540 2541 /* Driver supports link state tracking. */ 2542 ifp->if_capabilities |= IFCAP_LINKSTATE; 2543 ifp->if_capenable |= IFCAP_LINKSTATE; 2544 2545 /* Hook interrupt last to avoid having to lock softc */ 2546 error = bus_setup_intr(dev, sc->ti_irq, INTR_TYPE_NET|INTR_MPSAFE, 2547 NULL, ti_intr, sc, &sc->ti_intrhand); 2548 2549 if (error) { 2550 device_printf(dev, "couldn't set up irq\n"); 2551 goto fail; 2552 } 2553 2554 fail: 2555 if (error) 2556 ti_detach(dev); 2557 2558 return (error); 2559 } 2560 2561 /* 2562 * Shutdown hardware and free up resources. This can be called any 2563 * time after the mutex has been initialized. It is called in both 2564 * the error case in attach and the normal detach case so it needs 2565 * to be careful about only freeing resources that have actually been 2566 * allocated. 2567 */ 2568 static int 2569 ti_detach(device_t dev) 2570 { 2571 struct ti_softc *sc; 2572 struct ifnet *ifp; 2573 2574 sc = device_get_softc(dev); 2575 if (sc->dev) 2576 destroy_dev(sc->dev); 2577 KASSERT(mtx_initialized(&sc->ti_mtx), ("ti mutex not initialized")); 2578 ifp = sc->ti_ifp; 2579 if (device_is_attached(dev)) { 2580 ether_ifdetach(ifp); 2581 TI_LOCK(sc); 2582 ti_stop(sc); 2583 TI_UNLOCK(sc); 2584 } 2585 2586 /* These should only be active if attach succeeded */ 2587 callout_drain(&sc->ti_watchdog); 2588 bus_generic_detach(dev); 2589 ti_dma_free(sc); 2590 ifmedia_removeall(&sc->ifmedia); 2591 2592 if (sc->ti_intrhand) 2593 bus_teardown_intr(dev, sc->ti_irq, sc->ti_intrhand); 2594 if (sc->ti_irq) 2595 bus_release_resource(dev, SYS_RES_IRQ, 0, sc->ti_irq); 2596 if (sc->ti_res) { 2597 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_BAR(0), 2598 sc->ti_res); 2599 } 2600 if (ifp) 2601 if_free(ifp); 2602 if (sc->ti_membuf) 2603 free(sc->ti_membuf, M_DEVBUF); 2604 if (sc->ti_membuf2) 2605 free(sc->ti_membuf2, M_DEVBUF); 2606 2607 mtx_destroy(&sc->ti_mtx); 2608 2609 return (0); 2610 } 2611 2612 #ifdef TI_JUMBO_HDRSPLIT 2613 /* 2614 * If hdr_len is 0, that means that header splitting wasn't done on 2615 * this packet for some reason. The two most likely reasons are that 2616 * the protocol isn't a supported protocol for splitting, or this 2617 * packet had a fragment offset that wasn't 0. 2618 * 2619 * The header length, if it is non-zero, will always be the length of 2620 * the headers on the packet, but that length could be longer than the 2621 * first mbuf. So we take the minimum of the two as the actual 2622 * length. 2623 */ 2624 static __inline void 2625 ti_hdr_split(struct mbuf *top, int hdr_len, int pkt_len, int idx) 2626 { 2627 int i = 0; 2628 int lengths[4] = {0, 0, 0, 0}; 2629 struct mbuf *m, *mp; 2630 2631 if (hdr_len != 0) 2632 top->m_len = min(hdr_len, top->m_len); 2633 pkt_len -= top->m_len; 2634 lengths[i++] = top->m_len; 2635 2636 mp = top; 2637 for (m = top->m_next; m && pkt_len; m = m->m_next) { 2638 m->m_len = m->m_ext.ext_size = min(m->m_len, pkt_len); 2639 pkt_len -= m->m_len; 2640 lengths[i++] = m->m_len; 2641 mp = m; 2642 } 2643 2644 #if 0 2645 if (hdr_len != 0) 2646 printf("got split packet: "); 2647 else 2648 printf("got non-split packet: "); 2649 2650 printf("%d,%d,%d,%d = %d\n", lengths[0], 2651 lengths[1], lengths[2], lengths[3], 2652 lengths[0] + lengths[1] + lengths[2] + 2653 lengths[3]); 2654 #endif 2655 2656 if (pkt_len) 2657 panic("header splitting didn't"); 2658 2659 if (m) { 2660 m_freem(m); 2661 mp->m_next = NULL; 2662 } 2663 if (mp->m_next != NULL) 2664 panic("ti_hdr_split: last mbuf in chain should be null"); 2665 } 2666 #endif /* TI_JUMBO_HDRSPLIT */ 2667 2668 static void 2669 ti_discard_std(struct ti_softc *sc, int i) 2670 { 2671 2672 struct ti_rx_desc *r; 2673 2674 r = &sc->ti_rdata.ti_rx_std_ring[i]; 2675 r->ti_len = MCLBYTES - ETHER_ALIGN; 2676 r->ti_type = TI_BDTYPE_RECV_BD; 2677 r->ti_flags = 0; 2678 r->ti_vlan_tag = 0; 2679 r->ti_tcp_udp_cksum = 0; 2680 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM) 2681 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 2682 r->ti_idx = i; 2683 } 2684 2685 static void 2686 ti_discard_mini(struct ti_softc *sc, int i) 2687 { 2688 2689 struct ti_rx_desc *r; 2690 2691 r = &sc->ti_rdata.ti_rx_mini_ring[i]; 2692 r->ti_len = MHLEN - ETHER_ALIGN; 2693 r->ti_type = TI_BDTYPE_RECV_BD; 2694 r->ti_flags = TI_BDFLAG_MINI_RING; 2695 r->ti_vlan_tag = 0; 2696 r->ti_tcp_udp_cksum = 0; 2697 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM) 2698 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 2699 r->ti_idx = i; 2700 } 2701 2702 #ifndef TI_SF_BUF_JUMBO 2703 static void 2704 ti_discard_jumbo(struct ti_softc *sc, int i) 2705 { 2706 2707 struct ti_rx_desc *r; 2708 2709 r = &sc->ti_rdata.ti_rx_jumbo_ring[i]; 2710 r->ti_len = MJUM9BYTES - ETHER_ALIGN; 2711 r->ti_type = TI_BDTYPE_RECV_JUMBO_BD; 2712 r->ti_flags = TI_BDFLAG_JUMBO_RING; 2713 r->ti_vlan_tag = 0; 2714 r->ti_tcp_udp_cksum = 0; 2715 if (sc->ti_ifp->if_capenable & IFCAP_RXCSUM) 2716 r->ti_flags |= TI_BDFLAG_TCP_UDP_CKSUM | TI_BDFLAG_IP_CKSUM; 2717 r->ti_idx = i; 2718 } 2719 #endif 2720 2721 /* 2722 * Frame reception handling. This is called if there's a frame 2723 * on the receive return list. 2724 * 2725 * Note: we have to be able to handle three possibilities here: 2726 * 1) the frame is from the mini receive ring (can only happen) 2727 * on Tigon 2 boards) 2728 * 2) the frame is from the jumbo receive ring 2729 * 3) the frame is from the standard receive ring 2730 */ 2731 2732 static void 2733 ti_rxeof(struct ti_softc *sc) 2734 { 2735 struct ifnet *ifp; 2736 #ifdef TI_SF_BUF_JUMBO 2737 bus_dmamap_t map; 2738 #endif 2739 struct ti_cmd_desc cmd; 2740 int jumbocnt, minicnt, stdcnt, ti_len; 2741 2742 TI_LOCK_ASSERT(sc); 2743 2744 ifp = sc->ti_ifp; 2745 2746 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_ring_tag, 2747 sc->ti_cdata.ti_rx_std_ring_map, BUS_DMASYNC_POSTWRITE); 2748 if (ifp->if_mtu > ETHERMTU + ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN) 2749 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_ring_tag, 2750 sc->ti_cdata.ti_rx_jumbo_ring_map, BUS_DMASYNC_POSTWRITE); 2751 if (sc->ti_rdata.ti_rx_mini_ring != NULL) 2752 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_ring_tag, 2753 sc->ti_cdata.ti_rx_mini_ring_map, BUS_DMASYNC_POSTWRITE); 2754 bus_dmamap_sync(sc->ti_cdata.ti_rx_return_ring_tag, 2755 sc->ti_cdata.ti_rx_return_ring_map, BUS_DMASYNC_POSTREAD); 2756 2757 jumbocnt = minicnt = stdcnt = 0; 2758 while (sc->ti_rx_saved_considx != sc->ti_return_prodidx.ti_idx) { 2759 struct ti_rx_desc *cur_rx; 2760 uint32_t rxidx; 2761 struct mbuf *m = NULL; 2762 uint16_t vlan_tag = 0; 2763 int have_tag = 0; 2764 2765 cur_rx = 2766 &sc->ti_rdata.ti_rx_return_ring[sc->ti_rx_saved_considx]; 2767 rxidx = cur_rx->ti_idx; 2768 ti_len = cur_rx->ti_len; 2769 TI_INC(sc->ti_rx_saved_considx, TI_RETURN_RING_CNT); 2770 2771 if (cur_rx->ti_flags & TI_BDFLAG_VLAN_TAG) { 2772 have_tag = 1; 2773 vlan_tag = cur_rx->ti_vlan_tag; 2774 } 2775 2776 if (cur_rx->ti_flags & TI_BDFLAG_JUMBO_RING) { 2777 jumbocnt++; 2778 TI_INC(sc->ti_jumbo, TI_JUMBO_RX_RING_CNT); 2779 m = sc->ti_cdata.ti_rx_jumbo_chain[rxidx]; 2780 #ifndef TI_SF_BUF_JUMBO 2781 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { 2782 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2783 ti_discard_jumbo(sc, rxidx); 2784 continue; 2785 } 2786 if (ti_newbuf_jumbo(sc, rxidx, NULL) != 0) { 2787 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2788 ti_discard_jumbo(sc, rxidx); 2789 continue; 2790 } 2791 m->m_len = ti_len; 2792 #else /* !TI_SF_BUF_JUMBO */ 2793 sc->ti_cdata.ti_rx_jumbo_chain[rxidx] = NULL; 2794 map = sc->ti_cdata.ti_rx_jumbo_maps[rxidx]; 2795 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_tag, map, 2796 BUS_DMASYNC_POSTREAD); 2797 bus_dmamap_unload(sc->ti_cdata.ti_rx_jumbo_tag, map); 2798 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { 2799 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2800 ti_newbuf_jumbo(sc, sc->ti_jumbo, m); 2801 continue; 2802 } 2803 if (ti_newbuf_jumbo(sc, sc->ti_jumbo, NULL) == ENOBUFS) { 2804 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2805 ti_newbuf_jumbo(sc, sc->ti_jumbo, m); 2806 continue; 2807 } 2808 #ifdef TI_JUMBO_HDRSPLIT 2809 if (sc->ti_hdrsplit) 2810 ti_hdr_split(m, TI_HOSTADDR(cur_rx->ti_addr), 2811 ti_len, rxidx); 2812 else 2813 #endif /* TI_JUMBO_HDRSPLIT */ 2814 m_adj(m, ti_len - m->m_pkthdr.len); 2815 #endif /* TI_SF_BUF_JUMBO */ 2816 } else if (cur_rx->ti_flags & TI_BDFLAG_MINI_RING) { 2817 minicnt++; 2818 TI_INC(sc->ti_mini, TI_MINI_RX_RING_CNT); 2819 m = sc->ti_cdata.ti_rx_mini_chain[rxidx]; 2820 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { 2821 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2822 ti_discard_mini(sc, rxidx); 2823 continue; 2824 } 2825 if (ti_newbuf_mini(sc, rxidx) != 0) { 2826 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2827 ti_discard_mini(sc, rxidx); 2828 continue; 2829 } 2830 m->m_len = ti_len; 2831 } else { 2832 stdcnt++; 2833 TI_INC(sc->ti_std, TI_STD_RX_RING_CNT); 2834 m = sc->ti_cdata.ti_rx_std_chain[rxidx]; 2835 if (cur_rx->ti_flags & TI_BDFLAG_ERROR) { 2836 if_inc_counter(ifp, IFCOUNTER_IERRORS, 1); 2837 ti_discard_std(sc, rxidx); 2838 continue; 2839 } 2840 if (ti_newbuf_std(sc, rxidx) != 0) { 2841 if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 2842 ti_discard_std(sc, rxidx); 2843 continue; 2844 } 2845 m->m_len = ti_len; 2846 } 2847 2848 m->m_pkthdr.len = ti_len; 2849 if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 2850 m->m_pkthdr.rcvif = ifp; 2851 2852 if (ifp->if_capenable & IFCAP_RXCSUM) { 2853 if (cur_rx->ti_flags & TI_BDFLAG_IP_CKSUM) { 2854 m->m_pkthdr.csum_flags |= CSUM_IP_CHECKED; 2855 if ((cur_rx->ti_ip_cksum ^ 0xffff) == 0) 2856 m->m_pkthdr.csum_flags |= CSUM_IP_VALID; 2857 } 2858 if (cur_rx->ti_flags & TI_BDFLAG_TCP_UDP_CKSUM) { 2859 m->m_pkthdr.csum_data = 2860 cur_rx->ti_tcp_udp_cksum; 2861 m->m_pkthdr.csum_flags |= CSUM_DATA_VALID; 2862 } 2863 } 2864 2865 /* 2866 * If we received a packet with a vlan tag, 2867 * tag it before passing the packet upward. 2868 */ 2869 if (have_tag) { 2870 m->m_pkthdr.ether_vtag = vlan_tag; 2871 m->m_flags |= M_VLANTAG; 2872 } 2873 TI_UNLOCK(sc); 2874 (*ifp->if_input)(ifp, m); 2875 TI_LOCK(sc); 2876 } 2877 2878 bus_dmamap_sync(sc->ti_cdata.ti_rx_return_ring_tag, 2879 sc->ti_cdata.ti_rx_return_ring_map, BUS_DMASYNC_PREREAD); 2880 /* Only necessary on the Tigon 1. */ 2881 if (sc->ti_hwrev == TI_HWREV_TIGON) 2882 CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, 2883 sc->ti_rx_saved_considx); 2884 2885 if (stdcnt > 0) { 2886 bus_dmamap_sync(sc->ti_cdata.ti_rx_std_ring_tag, 2887 sc->ti_cdata.ti_rx_std_ring_map, BUS_DMASYNC_PREWRITE); 2888 TI_UPDATE_STDPROD(sc, sc->ti_std); 2889 } 2890 if (minicnt > 0) { 2891 bus_dmamap_sync(sc->ti_cdata.ti_rx_mini_ring_tag, 2892 sc->ti_cdata.ti_rx_mini_ring_map, BUS_DMASYNC_PREWRITE); 2893 TI_UPDATE_MINIPROD(sc, sc->ti_mini); 2894 } 2895 if (jumbocnt > 0) { 2896 bus_dmamap_sync(sc->ti_cdata.ti_rx_jumbo_ring_tag, 2897 sc->ti_cdata.ti_rx_jumbo_ring_map, BUS_DMASYNC_PREWRITE); 2898 TI_UPDATE_JUMBOPROD(sc, sc->ti_jumbo); 2899 } 2900 } 2901 2902 static void 2903 ti_txeof(struct ti_softc *sc) 2904 { 2905 struct ti_txdesc *txd; 2906 struct ti_tx_desc txdesc; 2907 struct ti_tx_desc *cur_tx = NULL; 2908 struct ifnet *ifp; 2909 int idx; 2910 2911 ifp = sc->ti_ifp; 2912 2913 txd = STAILQ_FIRST(&sc->ti_cdata.ti_txbusyq); 2914 if (txd == NULL) 2915 return; 2916 2917 if (sc->ti_rdata.ti_tx_ring != NULL) 2918 bus_dmamap_sync(sc->ti_cdata.ti_tx_ring_tag, 2919 sc->ti_cdata.ti_tx_ring_map, BUS_DMASYNC_POSTWRITE); 2920 /* 2921 * Go through our tx ring and free mbufs for those 2922 * frames that have been sent. 2923 */ 2924 for (idx = sc->ti_tx_saved_considx; idx != sc->ti_tx_considx.ti_idx; 2925 TI_INC(idx, TI_TX_RING_CNT)) { 2926 if (sc->ti_hwrev == TI_HWREV_TIGON) { 2927 ti_mem_read(sc, TI_TX_RING_BASE + idx * sizeof(txdesc), 2928 sizeof(txdesc), &txdesc); 2929 cur_tx = &txdesc; 2930 } else 2931 cur_tx = &sc->ti_rdata.ti_tx_ring[idx]; 2932 sc->ti_txcnt--; 2933 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 2934 if ((cur_tx->ti_flags & TI_BDFLAG_END) == 0) 2935 continue; 2936 bus_dmamap_sync(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap, 2937 BUS_DMASYNC_POSTWRITE); 2938 bus_dmamap_unload(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap); 2939 2940 if_inc_counter(ifp, IFCOUNTER_OPACKETS, 1); 2941 m_freem(txd->tx_m); 2942 txd->tx_m = NULL; 2943 STAILQ_REMOVE_HEAD(&sc->ti_cdata.ti_txbusyq, tx_q); 2944 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txfreeq, txd, tx_q); 2945 txd = STAILQ_FIRST(&sc->ti_cdata.ti_txbusyq); 2946 } 2947 sc->ti_tx_saved_considx = idx; 2948 if (sc->ti_txcnt == 0) 2949 sc->ti_timer = 0; 2950 } 2951 2952 static void 2953 ti_intr(void *xsc) 2954 { 2955 struct ti_softc *sc; 2956 struct ifnet *ifp; 2957 2958 sc = xsc; 2959 TI_LOCK(sc); 2960 ifp = sc->ti_ifp; 2961 2962 /* Make sure this is really our interrupt. */ 2963 if (!(CSR_READ_4(sc, TI_MISC_HOST_CTL) & TI_MHC_INTSTATE)) { 2964 TI_UNLOCK(sc); 2965 return; 2966 } 2967 2968 /* Ack interrupt and stop others from occurring. */ 2969 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); 2970 2971 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 2972 bus_dmamap_sync(sc->ti_cdata.ti_status_tag, 2973 sc->ti_cdata.ti_status_map, BUS_DMASYNC_POSTREAD); 2974 /* Check RX return ring producer/consumer */ 2975 ti_rxeof(sc); 2976 2977 /* Check TX ring producer/consumer */ 2978 ti_txeof(sc); 2979 bus_dmamap_sync(sc->ti_cdata.ti_status_tag, 2980 sc->ti_cdata.ti_status_map, BUS_DMASYNC_PREREAD); 2981 } 2982 2983 ti_handle_events(sc); 2984 2985 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 2986 /* Re-enable interrupts. */ 2987 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); 2988 if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd)) 2989 ti_start_locked(ifp); 2990 } 2991 2992 TI_UNLOCK(sc); 2993 } 2994 2995 static uint64_t 2996 ti_get_counter(struct ifnet *ifp, ift_counter cnt) 2997 { 2998 2999 switch (cnt) { 3000 case IFCOUNTER_COLLISIONS: 3001 { 3002 struct ti_softc *sc; 3003 struct ti_stats *s; 3004 uint64_t rv; 3005 3006 sc = if_getsoftc(ifp); 3007 s = &sc->ti_rdata.ti_info->ti_stats; 3008 3009 TI_LOCK(sc); 3010 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag, 3011 sc->ti_cdata.ti_gib_map, BUS_DMASYNC_POSTREAD); 3012 rv = s->dot3StatsSingleCollisionFrames + 3013 s->dot3StatsMultipleCollisionFrames + 3014 s->dot3StatsExcessiveCollisions + 3015 s->dot3StatsLateCollisions; 3016 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag, 3017 sc->ti_cdata.ti_gib_map, BUS_DMASYNC_PREREAD); 3018 TI_UNLOCK(sc); 3019 return (rv); 3020 } 3021 default: 3022 return (if_get_counter_default(ifp, cnt)); 3023 } 3024 } 3025 3026 /* 3027 * Encapsulate an mbuf chain in the tx ring by coupling the mbuf data 3028 * pointers to descriptors. 3029 */ 3030 static int 3031 ti_encap(struct ti_softc *sc, struct mbuf **m_head) 3032 { 3033 struct ti_txdesc *txd; 3034 struct ti_tx_desc *f; 3035 struct ti_tx_desc txdesc; 3036 struct mbuf *m; 3037 bus_dma_segment_t txsegs[TI_MAXTXSEGS]; 3038 uint16_t csum_flags; 3039 int error, frag, i, nseg; 3040 3041 if ((txd = STAILQ_FIRST(&sc->ti_cdata.ti_txfreeq)) == NULL) 3042 return (ENOBUFS); 3043 3044 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap, 3045 *m_head, txsegs, &nseg, 0); 3046 if (error == EFBIG) { 3047 m = m_defrag(*m_head, M_NOWAIT); 3048 if (m == NULL) { 3049 m_freem(*m_head); 3050 *m_head = NULL; 3051 return (ENOMEM); 3052 } 3053 *m_head = m; 3054 error = bus_dmamap_load_mbuf_sg(sc->ti_cdata.ti_tx_tag, 3055 txd->tx_dmamap, *m_head, txsegs, &nseg, 0); 3056 if (error) { 3057 m_freem(*m_head); 3058 *m_head = NULL; 3059 return (error); 3060 } 3061 } else if (error != 0) 3062 return (error); 3063 if (nseg == 0) { 3064 m_freem(*m_head); 3065 *m_head = NULL; 3066 return (EIO); 3067 } 3068 3069 if (sc->ti_txcnt + nseg >= TI_TX_RING_CNT) { 3070 bus_dmamap_unload(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap); 3071 return (ENOBUFS); 3072 } 3073 bus_dmamap_sync(sc->ti_cdata.ti_tx_tag, txd->tx_dmamap, 3074 BUS_DMASYNC_PREWRITE); 3075 3076 m = *m_head; 3077 csum_flags = 0; 3078 if (m->m_pkthdr.csum_flags & CSUM_IP) 3079 csum_flags |= TI_BDFLAG_IP_CKSUM; 3080 if (m->m_pkthdr.csum_flags & (CSUM_TCP | CSUM_UDP)) 3081 csum_flags |= TI_BDFLAG_TCP_UDP_CKSUM; 3082 3083 frag = sc->ti_tx_saved_prodidx; 3084 for (i = 0; i < nseg; i++) { 3085 if (sc->ti_hwrev == TI_HWREV_TIGON) { 3086 bzero(&txdesc, sizeof(txdesc)); 3087 f = &txdesc; 3088 } else 3089 f = &sc->ti_rdata.ti_tx_ring[frag]; 3090 ti_hostaddr64(&f->ti_addr, txsegs[i].ds_addr); 3091 f->ti_len = txsegs[i].ds_len; 3092 f->ti_flags = csum_flags; 3093 if (m->m_flags & M_VLANTAG) { 3094 f->ti_flags |= TI_BDFLAG_VLAN_TAG; 3095 f->ti_vlan_tag = m->m_pkthdr.ether_vtag; 3096 } else { 3097 f->ti_vlan_tag = 0; 3098 } 3099 3100 if (sc->ti_hwrev == TI_HWREV_TIGON) 3101 ti_mem_write(sc, TI_TX_RING_BASE + frag * 3102 sizeof(txdesc), sizeof(txdesc), &txdesc); 3103 TI_INC(frag, TI_TX_RING_CNT); 3104 } 3105 3106 sc->ti_tx_saved_prodidx = frag; 3107 /* set TI_BDFLAG_END on the last descriptor */ 3108 frag = (frag + TI_TX_RING_CNT - 1) % TI_TX_RING_CNT; 3109 if (sc->ti_hwrev == TI_HWREV_TIGON) { 3110 txdesc.ti_flags |= TI_BDFLAG_END; 3111 ti_mem_write(sc, TI_TX_RING_BASE + frag * sizeof(txdesc), 3112 sizeof(txdesc), &txdesc); 3113 } else 3114 sc->ti_rdata.ti_tx_ring[frag].ti_flags |= TI_BDFLAG_END; 3115 3116 STAILQ_REMOVE_HEAD(&sc->ti_cdata.ti_txfreeq, tx_q); 3117 STAILQ_INSERT_TAIL(&sc->ti_cdata.ti_txbusyq, txd, tx_q); 3118 txd->tx_m = m; 3119 sc->ti_txcnt += nseg; 3120 3121 return (0); 3122 } 3123 3124 static void 3125 ti_start(struct ifnet *ifp) 3126 { 3127 struct ti_softc *sc; 3128 3129 sc = ifp->if_softc; 3130 TI_LOCK(sc); 3131 ti_start_locked(ifp); 3132 TI_UNLOCK(sc); 3133 } 3134 3135 /* 3136 * Main transmit routine. To avoid having to do mbuf copies, we put pointers 3137 * to the mbuf data regions directly in the transmit descriptors. 3138 */ 3139 static void 3140 ti_start_locked(struct ifnet *ifp) 3141 { 3142 struct ti_softc *sc; 3143 struct mbuf *m_head = NULL; 3144 int enq = 0; 3145 3146 sc = ifp->if_softc; 3147 3148 for (; !IFQ_DRV_IS_EMPTY(&ifp->if_snd) && 3149 sc->ti_txcnt < (TI_TX_RING_CNT - 16);) { 3150 IFQ_DRV_DEQUEUE(&ifp->if_snd, m_head); 3151 if (m_head == NULL) 3152 break; 3153 3154 /* 3155 * Pack the data into the transmit ring. If we 3156 * don't have room, set the OACTIVE flag and wait 3157 * for the NIC to drain the ring. 3158 */ 3159 if (ti_encap(sc, &m_head)) { 3160 if (m_head == NULL) 3161 break; 3162 IFQ_DRV_PREPEND(&ifp->if_snd, m_head); 3163 ifp->if_drv_flags |= IFF_DRV_OACTIVE; 3164 break; 3165 } 3166 3167 enq++; 3168 /* 3169 * If there's a BPF listener, bounce a copy of this frame 3170 * to him. 3171 */ 3172 ETHER_BPF_MTAP(ifp, m_head); 3173 } 3174 3175 if (enq > 0) { 3176 if (sc->ti_rdata.ti_tx_ring != NULL) 3177 bus_dmamap_sync(sc->ti_cdata.ti_tx_ring_tag, 3178 sc->ti_cdata.ti_tx_ring_map, BUS_DMASYNC_PREWRITE); 3179 /* Transmit */ 3180 CSR_WRITE_4(sc, TI_MB_SENDPROD_IDX, sc->ti_tx_saved_prodidx); 3181 3182 /* 3183 * Set a timeout in case the chip goes out to lunch. 3184 */ 3185 sc->ti_timer = 5; 3186 } 3187 } 3188 3189 static void 3190 ti_init(void *xsc) 3191 { 3192 struct ti_softc *sc; 3193 3194 sc = xsc; 3195 TI_LOCK(sc); 3196 ti_init_locked(sc); 3197 TI_UNLOCK(sc); 3198 } 3199 3200 static void 3201 ti_init_locked(void *xsc) 3202 { 3203 struct ti_softc *sc = xsc; 3204 3205 if (sc->ti_ifp->if_drv_flags & IFF_DRV_RUNNING) 3206 return; 3207 3208 /* Cancel pending I/O and flush buffers. */ 3209 ti_stop(sc); 3210 3211 /* Init the gen info block, ring control blocks and firmware. */ 3212 if (ti_gibinit(sc)) { 3213 device_printf(sc->ti_dev, "initialization failure\n"); 3214 return; 3215 } 3216 } 3217 3218 static void ti_init2(struct ti_softc *sc) 3219 { 3220 struct ti_cmd_desc cmd; 3221 struct ifnet *ifp; 3222 uint8_t *ea; 3223 struct ifmedia *ifm; 3224 int tmp; 3225 3226 TI_LOCK_ASSERT(sc); 3227 3228 ifp = sc->ti_ifp; 3229 3230 /* Specify MTU and interface index. */ 3231 CSR_WRITE_4(sc, TI_GCR_IFINDEX, device_get_unit(sc->ti_dev)); 3232 CSR_WRITE_4(sc, TI_GCR_IFMTU, ifp->if_mtu + 3233 ETHER_HDR_LEN + ETHER_CRC_LEN + ETHER_VLAN_ENCAP_LEN); 3234 TI_DO_CMD(TI_CMD_UPDATE_GENCOM, 0, 0); 3235 3236 /* Load our MAC address. */ 3237 ea = IF_LLADDR(sc->ti_ifp); 3238 CSR_WRITE_4(sc, TI_GCR_PAR0, (ea[0] << 8) | ea[1]); 3239 CSR_WRITE_4(sc, TI_GCR_PAR1, 3240 (ea[2] << 24) | (ea[3] << 16) | (ea[4] << 8) | ea[5]); 3241 TI_DO_CMD(TI_CMD_SET_MAC_ADDR, 0, 0); 3242 3243 /* Enable or disable promiscuous mode as needed. */ 3244 if (ifp->if_flags & IFF_PROMISC) { 3245 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_ENB, 0); 3246 } else { 3247 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, TI_CMD_CODE_PROMISC_DIS, 0); 3248 } 3249 3250 /* Program multicast filter. */ 3251 ti_setmulti(sc); 3252 3253 /* 3254 * If this is a Tigon 1, we should tell the 3255 * firmware to use software packet filtering. 3256 */ 3257 if (sc->ti_hwrev == TI_HWREV_TIGON) { 3258 TI_DO_CMD(TI_CMD_FDR_FILTERING, TI_CMD_CODE_FILT_ENB, 0); 3259 } 3260 3261 /* Init RX ring. */ 3262 if (ti_init_rx_ring_std(sc) != 0) { 3263 /* XXX */ 3264 device_printf(sc->ti_dev, "no memory for std Rx buffers.\n"); 3265 return; 3266 } 3267 3268 /* Init jumbo RX ring. */ 3269 if (ifp->if_mtu > ETHERMTU + ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN) { 3270 if (ti_init_rx_ring_jumbo(sc) != 0) { 3271 /* XXX */ 3272 device_printf(sc->ti_dev, 3273 "no memory for jumbo Rx buffers.\n"); 3274 return; 3275 } 3276 } 3277 3278 /* 3279 * If this is a Tigon 2, we can also configure the 3280 * mini ring. 3281 */ 3282 if (sc->ti_hwrev == TI_HWREV_TIGON_II) { 3283 if (ti_init_rx_ring_mini(sc) != 0) { 3284 /* XXX */ 3285 device_printf(sc->ti_dev, 3286 "no memory for mini Rx buffers.\n"); 3287 return; 3288 } 3289 } 3290 3291 CSR_WRITE_4(sc, TI_GCR_RXRETURNCONS_IDX, 0); 3292 sc->ti_rx_saved_considx = 0; 3293 3294 /* Init TX ring. */ 3295 ti_init_tx_ring(sc); 3296 3297 /* Tell firmware we're alive. */ 3298 TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_UP, 0); 3299 3300 /* Enable host interrupts. */ 3301 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 0); 3302 3303 ifp->if_drv_flags |= IFF_DRV_RUNNING; 3304 ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; 3305 callout_reset(&sc->ti_watchdog, hz, ti_watchdog, sc); 3306 3307 /* 3308 * Make sure to set media properly. We have to do this 3309 * here since we have to issue commands in order to set 3310 * the link negotiation and we can't issue commands until 3311 * the firmware is running. 3312 */ 3313 ifm = &sc->ifmedia; 3314 tmp = ifm->ifm_media; 3315 ifm->ifm_media = ifm->ifm_cur->ifm_media; 3316 ti_ifmedia_upd_locked(sc); 3317 ifm->ifm_media = tmp; 3318 } 3319 3320 /* 3321 * Set media options. 3322 */ 3323 static int 3324 ti_ifmedia_upd(struct ifnet *ifp) 3325 { 3326 struct ti_softc *sc; 3327 int error; 3328 3329 sc = ifp->if_softc; 3330 TI_LOCK(sc); 3331 error = ti_ifmedia_upd_locked(sc); 3332 TI_UNLOCK(sc); 3333 3334 return (error); 3335 } 3336 3337 static int 3338 ti_ifmedia_upd_locked(struct ti_softc *sc) 3339 { 3340 struct ifmedia *ifm; 3341 struct ti_cmd_desc cmd; 3342 uint32_t flowctl; 3343 3344 ifm = &sc->ifmedia; 3345 3346 if (IFM_TYPE(ifm->ifm_media) != IFM_ETHER) 3347 return (EINVAL); 3348 3349 flowctl = 0; 3350 3351 switch (IFM_SUBTYPE(ifm->ifm_media)) { 3352 case IFM_AUTO: 3353 /* 3354 * Transmit flow control doesn't work on the Tigon 1. 3355 */ 3356 flowctl = TI_GLNK_RX_FLOWCTL_Y; 3357 3358 /* 3359 * Transmit flow control can also cause problems on the 3360 * Tigon 2, apparently with both the copper and fiber 3361 * boards. The symptom is that the interface will just 3362 * hang. This was reproduced with Alteon 180 switches. 3363 */ 3364 #if 0 3365 if (sc->ti_hwrev != TI_HWREV_TIGON) 3366 flowctl |= TI_GLNK_TX_FLOWCTL_Y; 3367 #endif 3368 3369 CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB| 3370 TI_GLNK_FULL_DUPLEX| flowctl | 3371 TI_GLNK_AUTONEGENB|TI_GLNK_ENB); 3372 3373 flowctl = TI_LNK_RX_FLOWCTL_Y; 3374 #if 0 3375 if (sc->ti_hwrev != TI_HWREV_TIGON) 3376 flowctl |= TI_LNK_TX_FLOWCTL_Y; 3377 #endif 3378 3379 CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_100MB|TI_LNK_10MB| 3380 TI_LNK_FULL_DUPLEX|TI_LNK_HALF_DUPLEX| flowctl | 3381 TI_LNK_AUTONEGENB|TI_LNK_ENB); 3382 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, 3383 TI_CMD_CODE_NEGOTIATE_BOTH, 0); 3384 break; 3385 case IFM_1000_SX: 3386 case IFM_1000_T: 3387 flowctl = TI_GLNK_RX_FLOWCTL_Y; 3388 #if 0 3389 if (sc->ti_hwrev != TI_HWREV_TIGON) 3390 flowctl |= TI_GLNK_TX_FLOWCTL_Y; 3391 #endif 3392 3393 CSR_WRITE_4(sc, TI_GCR_GLINK, TI_GLNK_PREF|TI_GLNK_1000MB| 3394 flowctl |TI_GLNK_ENB); 3395 CSR_WRITE_4(sc, TI_GCR_LINK, 0); 3396 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { 3397 TI_SETBIT(sc, TI_GCR_GLINK, TI_GLNK_FULL_DUPLEX); 3398 } 3399 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, 3400 TI_CMD_CODE_NEGOTIATE_GIGABIT, 0); 3401 break; 3402 case IFM_100_FX: 3403 case IFM_10_FL: 3404 case IFM_100_TX: 3405 case IFM_10_T: 3406 flowctl = TI_LNK_RX_FLOWCTL_Y; 3407 #if 0 3408 if (sc->ti_hwrev != TI_HWREV_TIGON) 3409 flowctl |= TI_LNK_TX_FLOWCTL_Y; 3410 #endif 3411 3412 CSR_WRITE_4(sc, TI_GCR_GLINK, 0); 3413 CSR_WRITE_4(sc, TI_GCR_LINK, TI_LNK_ENB|TI_LNK_PREF|flowctl); 3414 if (IFM_SUBTYPE(ifm->ifm_media) == IFM_100_FX || 3415 IFM_SUBTYPE(ifm->ifm_media) == IFM_100_TX) { 3416 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_100MB); 3417 } else { 3418 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_10MB); 3419 } 3420 if ((ifm->ifm_media & IFM_GMASK) == IFM_FDX) { 3421 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_FULL_DUPLEX); 3422 } else { 3423 TI_SETBIT(sc, TI_GCR_LINK, TI_LNK_HALF_DUPLEX); 3424 } 3425 TI_DO_CMD(TI_CMD_LINK_NEGOTIATION, 3426 TI_CMD_CODE_NEGOTIATE_10_100, 0); 3427 break; 3428 } 3429 3430 return (0); 3431 } 3432 3433 /* 3434 * Report current media status. 3435 */ 3436 static void 3437 ti_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) 3438 { 3439 struct ti_softc *sc; 3440 uint32_t media = 0; 3441 3442 sc = ifp->if_softc; 3443 3444 TI_LOCK(sc); 3445 3446 ifmr->ifm_status = IFM_AVALID; 3447 ifmr->ifm_active = IFM_ETHER; 3448 3449 if (sc->ti_linkstat == TI_EV_CODE_LINK_DOWN) { 3450 TI_UNLOCK(sc); 3451 return; 3452 } 3453 3454 ifmr->ifm_status |= IFM_ACTIVE; 3455 3456 if (sc->ti_linkstat == TI_EV_CODE_GIG_LINK_UP) { 3457 media = CSR_READ_4(sc, TI_GCR_GLINK_STAT); 3458 if (sc->ti_copper) 3459 ifmr->ifm_active |= IFM_1000_T; 3460 else 3461 ifmr->ifm_active |= IFM_1000_SX; 3462 if (media & TI_GLNK_FULL_DUPLEX) 3463 ifmr->ifm_active |= IFM_FDX; 3464 else 3465 ifmr->ifm_active |= IFM_HDX; 3466 } else if (sc->ti_linkstat == TI_EV_CODE_LINK_UP) { 3467 media = CSR_READ_4(sc, TI_GCR_LINK_STAT); 3468 if (sc->ti_copper) { 3469 if (media & TI_LNK_100MB) 3470 ifmr->ifm_active |= IFM_100_TX; 3471 if (media & TI_LNK_10MB) 3472 ifmr->ifm_active |= IFM_10_T; 3473 } else { 3474 if (media & TI_LNK_100MB) 3475 ifmr->ifm_active |= IFM_100_FX; 3476 if (media & TI_LNK_10MB) 3477 ifmr->ifm_active |= IFM_10_FL; 3478 } 3479 if (media & TI_LNK_FULL_DUPLEX) 3480 ifmr->ifm_active |= IFM_FDX; 3481 if (media & TI_LNK_HALF_DUPLEX) 3482 ifmr->ifm_active |= IFM_HDX; 3483 } 3484 TI_UNLOCK(sc); 3485 } 3486 3487 static int 3488 ti_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 3489 { 3490 struct ti_softc *sc = ifp->if_softc; 3491 struct ifreq *ifr = (struct ifreq *) data; 3492 struct ti_cmd_desc cmd; 3493 int mask, error = 0; 3494 3495 switch (command) { 3496 case SIOCSIFMTU: 3497 TI_LOCK(sc); 3498 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > TI_JUMBO_MTU) 3499 error = EINVAL; 3500 else { 3501 ifp->if_mtu = ifr->ifr_mtu; 3502 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3503 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 3504 ti_init_locked(sc); 3505 } 3506 } 3507 TI_UNLOCK(sc); 3508 break; 3509 case SIOCSIFFLAGS: 3510 TI_LOCK(sc); 3511 if (ifp->if_flags & IFF_UP) { 3512 /* 3513 * If only the state of the PROMISC flag changed, 3514 * then just use the 'set promisc mode' command 3515 * instead of reinitializing the entire NIC. Doing 3516 * a full re-init means reloading the firmware and 3517 * waiting for it to start up, which may take a 3518 * second or two. 3519 */ 3520 if (ifp->if_drv_flags & IFF_DRV_RUNNING && 3521 ifp->if_flags & IFF_PROMISC && 3522 !(sc->ti_if_flags & IFF_PROMISC)) { 3523 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, 3524 TI_CMD_CODE_PROMISC_ENB, 0); 3525 } else if (ifp->if_drv_flags & IFF_DRV_RUNNING && 3526 !(ifp->if_flags & IFF_PROMISC) && 3527 sc->ti_if_flags & IFF_PROMISC) { 3528 TI_DO_CMD(TI_CMD_SET_PROMISC_MODE, 3529 TI_CMD_CODE_PROMISC_DIS, 0); 3530 } else 3531 ti_init_locked(sc); 3532 } else { 3533 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3534 ti_stop(sc); 3535 } 3536 } 3537 sc->ti_if_flags = ifp->if_flags; 3538 TI_UNLOCK(sc); 3539 break; 3540 case SIOCADDMULTI: 3541 case SIOCDELMULTI: 3542 TI_LOCK(sc); 3543 if (ifp->if_drv_flags & IFF_DRV_RUNNING) 3544 ti_setmulti(sc); 3545 TI_UNLOCK(sc); 3546 break; 3547 case SIOCSIFMEDIA: 3548 case SIOCGIFMEDIA: 3549 error = ifmedia_ioctl(ifp, ifr, &sc->ifmedia, command); 3550 break; 3551 case SIOCSIFCAP: 3552 TI_LOCK(sc); 3553 mask = ifr->ifr_reqcap ^ ifp->if_capenable; 3554 if ((mask & IFCAP_TXCSUM) != 0 && 3555 (ifp->if_capabilities & IFCAP_TXCSUM) != 0) { 3556 ifp->if_capenable ^= IFCAP_TXCSUM; 3557 if ((ifp->if_capenable & IFCAP_TXCSUM) != 0) 3558 ifp->if_hwassist |= TI_CSUM_FEATURES; 3559 else 3560 ifp->if_hwassist &= ~TI_CSUM_FEATURES; 3561 } 3562 if ((mask & IFCAP_RXCSUM) != 0 && 3563 (ifp->if_capabilities & IFCAP_RXCSUM) != 0) 3564 ifp->if_capenable ^= IFCAP_RXCSUM; 3565 if ((mask & IFCAP_VLAN_HWTAGGING) != 0 && 3566 (ifp->if_capabilities & IFCAP_VLAN_HWTAGGING) != 0) 3567 ifp->if_capenable ^= IFCAP_VLAN_HWTAGGING; 3568 if ((mask & IFCAP_VLAN_HWCSUM) != 0 && 3569 (ifp->if_capabilities & IFCAP_VLAN_HWCSUM) != 0) 3570 ifp->if_capenable ^= IFCAP_VLAN_HWCSUM; 3571 if ((mask & (IFCAP_TXCSUM | IFCAP_RXCSUM | 3572 IFCAP_VLAN_HWTAGGING)) != 0) { 3573 if (ifp->if_drv_flags & IFF_DRV_RUNNING) { 3574 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 3575 ti_init_locked(sc); 3576 } 3577 } 3578 TI_UNLOCK(sc); 3579 VLAN_CAPABILITIES(ifp); 3580 break; 3581 default: 3582 error = ether_ioctl(ifp, command, data); 3583 break; 3584 } 3585 3586 return (error); 3587 } 3588 3589 static int 3590 ti_open(struct cdev *dev, int flags, int fmt, struct thread *td) 3591 { 3592 struct ti_softc *sc; 3593 3594 sc = dev->si_drv1; 3595 if (sc == NULL) 3596 return (ENODEV); 3597 3598 TI_LOCK(sc); 3599 sc->ti_flags |= TI_FLAG_DEBUGING; 3600 TI_UNLOCK(sc); 3601 3602 return (0); 3603 } 3604 3605 static int 3606 ti_close(struct cdev *dev, int flag, int fmt, struct thread *td) 3607 { 3608 struct ti_softc *sc; 3609 3610 sc = dev->si_drv1; 3611 if (sc == NULL) 3612 return (ENODEV); 3613 3614 TI_LOCK(sc); 3615 sc->ti_flags &= ~TI_FLAG_DEBUGING; 3616 TI_UNLOCK(sc); 3617 3618 return (0); 3619 } 3620 3621 /* 3622 * This ioctl routine goes along with the Tigon character device. 3623 */ 3624 static int 3625 ti_ioctl2(struct cdev *dev, u_long cmd, caddr_t addr, int flag, 3626 struct thread *td) 3627 { 3628 struct ti_softc *sc; 3629 int error; 3630 3631 sc = dev->si_drv1; 3632 if (sc == NULL) 3633 return (ENODEV); 3634 3635 error = 0; 3636 3637 switch (cmd) { 3638 case TIIOCGETSTATS: 3639 { 3640 struct ti_stats *outstats; 3641 3642 outstats = (struct ti_stats *)addr; 3643 3644 TI_LOCK(sc); 3645 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag, 3646 sc->ti_cdata.ti_gib_map, BUS_DMASYNC_POSTREAD); 3647 bcopy(&sc->ti_rdata.ti_info->ti_stats, outstats, 3648 sizeof(struct ti_stats)); 3649 bus_dmamap_sync(sc->ti_cdata.ti_gib_tag, 3650 sc->ti_cdata.ti_gib_map, BUS_DMASYNC_PREREAD); 3651 TI_UNLOCK(sc); 3652 break; 3653 } 3654 case TIIOCGETPARAMS: 3655 { 3656 struct ti_params *params; 3657 3658 params = (struct ti_params *)addr; 3659 3660 TI_LOCK(sc); 3661 params->ti_stat_ticks = sc->ti_stat_ticks; 3662 params->ti_rx_coal_ticks = sc->ti_rx_coal_ticks; 3663 params->ti_tx_coal_ticks = sc->ti_tx_coal_ticks; 3664 params->ti_rx_max_coal_bds = sc->ti_rx_max_coal_bds; 3665 params->ti_tx_max_coal_bds = sc->ti_tx_max_coal_bds; 3666 params->ti_tx_buf_ratio = sc->ti_tx_buf_ratio; 3667 params->param_mask = TI_PARAM_ALL; 3668 TI_UNLOCK(sc); 3669 break; 3670 } 3671 case TIIOCSETPARAMS: 3672 { 3673 struct ti_params *params; 3674 3675 params = (struct ti_params *)addr; 3676 3677 TI_LOCK(sc); 3678 if (params->param_mask & TI_PARAM_STAT_TICKS) { 3679 sc->ti_stat_ticks = params->ti_stat_ticks; 3680 CSR_WRITE_4(sc, TI_GCR_STAT_TICKS, sc->ti_stat_ticks); 3681 } 3682 3683 if (params->param_mask & TI_PARAM_RX_COAL_TICKS) { 3684 sc->ti_rx_coal_ticks = params->ti_rx_coal_ticks; 3685 CSR_WRITE_4(sc, TI_GCR_RX_COAL_TICKS, 3686 sc->ti_rx_coal_ticks); 3687 } 3688 3689 if (params->param_mask & TI_PARAM_TX_COAL_TICKS) { 3690 sc->ti_tx_coal_ticks = params->ti_tx_coal_ticks; 3691 CSR_WRITE_4(sc, TI_GCR_TX_COAL_TICKS, 3692 sc->ti_tx_coal_ticks); 3693 } 3694 3695 if (params->param_mask & TI_PARAM_RX_COAL_BDS) { 3696 sc->ti_rx_max_coal_bds = params->ti_rx_max_coal_bds; 3697 CSR_WRITE_4(sc, TI_GCR_RX_MAX_COAL_BD, 3698 sc->ti_rx_max_coal_bds); 3699 } 3700 3701 if (params->param_mask & TI_PARAM_TX_COAL_BDS) { 3702 sc->ti_tx_max_coal_bds = params->ti_tx_max_coal_bds; 3703 CSR_WRITE_4(sc, TI_GCR_TX_MAX_COAL_BD, 3704 sc->ti_tx_max_coal_bds); 3705 } 3706 3707 if (params->param_mask & TI_PARAM_TX_BUF_RATIO) { 3708 sc->ti_tx_buf_ratio = params->ti_tx_buf_ratio; 3709 CSR_WRITE_4(sc, TI_GCR_TX_BUFFER_RATIO, 3710 sc->ti_tx_buf_ratio); 3711 } 3712 TI_UNLOCK(sc); 3713 break; 3714 } 3715 case TIIOCSETTRACE: { 3716 ti_trace_type trace_type; 3717 3718 trace_type = *(ti_trace_type *)addr; 3719 3720 /* 3721 * Set tracing to whatever the user asked for. Setting 3722 * this register to 0 should have the effect of disabling 3723 * tracing. 3724 */ 3725 TI_LOCK(sc); 3726 CSR_WRITE_4(sc, TI_GCR_NIC_TRACING, trace_type); 3727 TI_UNLOCK(sc); 3728 break; 3729 } 3730 case TIIOCGETTRACE: { 3731 struct ti_trace_buf *trace_buf; 3732 uint32_t trace_start, cur_trace_ptr, trace_len; 3733 3734 trace_buf = (struct ti_trace_buf *)addr; 3735 3736 TI_LOCK(sc); 3737 trace_start = CSR_READ_4(sc, TI_GCR_NICTRACE_START); 3738 cur_trace_ptr = CSR_READ_4(sc, TI_GCR_NICTRACE_PTR); 3739 trace_len = CSR_READ_4(sc, TI_GCR_NICTRACE_LEN); 3740 #if 0 3741 if_printf(sc->ti_ifp, "trace_start = %#x, cur_trace_ptr = %#x, " 3742 "trace_len = %d\n", trace_start, 3743 cur_trace_ptr, trace_len); 3744 if_printf(sc->ti_ifp, "trace_buf->buf_len = %d\n", 3745 trace_buf->buf_len); 3746 #endif 3747 error = ti_copy_mem(sc, trace_start, min(trace_len, 3748 trace_buf->buf_len), (caddr_t)trace_buf->buf, 1, 1); 3749 if (error == 0) { 3750 trace_buf->fill_len = min(trace_len, 3751 trace_buf->buf_len); 3752 if (cur_trace_ptr < trace_start) 3753 trace_buf->cur_trace_ptr = 3754 trace_start - cur_trace_ptr; 3755 else 3756 trace_buf->cur_trace_ptr = 3757 cur_trace_ptr - trace_start; 3758 } else 3759 trace_buf->fill_len = 0; 3760 TI_UNLOCK(sc); 3761 break; 3762 } 3763 3764 /* 3765 * For debugging, five ioctls are needed: 3766 * ALT_ATTACH 3767 * ALT_READ_TG_REG 3768 * ALT_WRITE_TG_REG 3769 * ALT_READ_TG_MEM 3770 * ALT_WRITE_TG_MEM 3771 */ 3772 case ALT_ATTACH: 3773 /* 3774 * From what I can tell, Alteon's Solaris Tigon driver 3775 * only has one character device, so you have to attach 3776 * to the Tigon board you're interested in. This seems 3777 * like a not-so-good way to do things, since unless you 3778 * subsequently specify the unit number of the device 3779 * you're interested in every ioctl, you'll only be 3780 * able to debug one board at a time. 3781 */ 3782 break; 3783 case ALT_READ_TG_MEM: 3784 case ALT_WRITE_TG_MEM: 3785 { 3786 struct tg_mem *mem_param; 3787 uint32_t sram_end, scratch_end; 3788 3789 mem_param = (struct tg_mem *)addr; 3790 3791 if (sc->ti_hwrev == TI_HWREV_TIGON) { 3792 sram_end = TI_END_SRAM_I; 3793 scratch_end = TI_END_SCRATCH_I; 3794 } else { 3795 sram_end = TI_END_SRAM_II; 3796 scratch_end = TI_END_SCRATCH_II; 3797 } 3798 3799 /* 3800 * For now, we'll only handle accessing regular SRAM, 3801 * nothing else. 3802 */ 3803 TI_LOCK(sc); 3804 if (mem_param->tgAddr >= TI_BEG_SRAM && 3805 mem_param->tgAddr + mem_param->len <= sram_end) { 3806 /* 3807 * In this instance, we always copy to/from user 3808 * space, so the user space argument is set to 1. 3809 */ 3810 error = ti_copy_mem(sc, mem_param->tgAddr, 3811 mem_param->len, mem_param->userAddr, 1, 3812 cmd == ALT_READ_TG_MEM ? 1 : 0); 3813 } else if (mem_param->tgAddr >= TI_BEG_SCRATCH && 3814 mem_param->tgAddr <= scratch_end) { 3815 error = ti_copy_scratch(sc, mem_param->tgAddr, 3816 mem_param->len, mem_param->userAddr, 1, 3817 cmd == ALT_READ_TG_MEM ? 1 : 0, TI_PROCESSOR_A); 3818 } else if (mem_param->tgAddr >= TI_BEG_SCRATCH_B_DEBUG && 3819 mem_param->tgAddr <= TI_BEG_SCRATCH_B_DEBUG) { 3820 if (sc->ti_hwrev == TI_HWREV_TIGON) { 3821 if_printf(sc->ti_ifp, 3822 "invalid memory range for Tigon I\n"); 3823 error = EINVAL; 3824 break; 3825 } 3826 error = ti_copy_scratch(sc, mem_param->tgAddr - 3827 TI_SCRATCH_DEBUG_OFF, mem_param->len, 3828 mem_param->userAddr, 1, 3829 cmd == ALT_READ_TG_MEM ? 1 : 0, TI_PROCESSOR_B); 3830 } else { 3831 if_printf(sc->ti_ifp, "memory address %#x len %d is " 3832 "out of supported range\n", 3833 mem_param->tgAddr, mem_param->len); 3834 error = EINVAL; 3835 } 3836 TI_UNLOCK(sc); 3837 break; 3838 } 3839 case ALT_READ_TG_REG: 3840 case ALT_WRITE_TG_REG: 3841 { 3842 struct tg_reg *regs; 3843 uint32_t tmpval; 3844 3845 regs = (struct tg_reg *)addr; 3846 3847 /* 3848 * Make sure the address in question isn't out of range. 3849 */ 3850 if (regs->addr > TI_REG_MAX) { 3851 error = EINVAL; 3852 break; 3853 } 3854 TI_LOCK(sc); 3855 if (cmd == ALT_READ_TG_REG) { 3856 bus_space_read_region_4(sc->ti_btag, sc->ti_bhandle, 3857 regs->addr, &tmpval, 1); 3858 regs->data = ntohl(tmpval); 3859 #if 0 3860 if ((regs->addr == TI_CPU_STATE) 3861 || (regs->addr == TI_CPU_CTL_B)) { 3862 if_printf(sc->ti_ifp, "register %#x = %#x\n", 3863 regs->addr, tmpval); 3864 } 3865 #endif 3866 } else { 3867 tmpval = htonl(regs->data); 3868 bus_space_write_region_4(sc->ti_btag, sc->ti_bhandle, 3869 regs->addr, &tmpval, 1); 3870 } 3871 TI_UNLOCK(sc); 3872 break; 3873 } 3874 default: 3875 error = ENOTTY; 3876 break; 3877 } 3878 return (error); 3879 } 3880 3881 static void 3882 ti_watchdog(void *arg) 3883 { 3884 struct ti_softc *sc; 3885 struct ifnet *ifp; 3886 3887 sc = arg; 3888 TI_LOCK_ASSERT(sc); 3889 callout_reset(&sc->ti_watchdog, hz, ti_watchdog, sc); 3890 if (sc->ti_timer == 0 || --sc->ti_timer > 0) 3891 return; 3892 3893 /* 3894 * When we're debugging, the chip is often stopped for long periods 3895 * of time, and that would normally cause the watchdog timer to fire. 3896 * Since that impedes debugging, we don't want to do that. 3897 */ 3898 if (sc->ti_flags & TI_FLAG_DEBUGING) 3899 return; 3900 3901 ifp = sc->ti_ifp; 3902 if_printf(ifp, "watchdog timeout -- resetting\n"); 3903 ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 3904 ti_init_locked(sc); 3905 3906 if_inc_counter(ifp, IFCOUNTER_OERRORS, 1); 3907 } 3908 3909 /* 3910 * Stop the adapter and free any mbufs allocated to the 3911 * RX and TX lists. 3912 */ 3913 static void 3914 ti_stop(struct ti_softc *sc) 3915 { 3916 struct ifnet *ifp; 3917 struct ti_cmd_desc cmd; 3918 3919 TI_LOCK_ASSERT(sc); 3920 3921 ifp = sc->ti_ifp; 3922 3923 /* Disable host interrupts. */ 3924 CSR_WRITE_4(sc, TI_MB_HOSTINTR, 1); 3925 /* 3926 * Tell firmware we're shutting down. 3927 */ 3928 TI_DO_CMD(TI_CMD_HOST_STATE, TI_CMD_CODE_STACK_DOWN, 0); 3929 3930 /* Halt and reinitialize. */ 3931 if (ti_chipinit(sc) == 0) { 3932 ti_mem_zero(sc, 0x2000, 0x100000 - 0x2000); 3933 /* XXX ignore init errors. */ 3934 ti_chipinit(sc); 3935 } 3936 3937 /* Free the RX lists. */ 3938 ti_free_rx_ring_std(sc); 3939 3940 /* Free jumbo RX list. */ 3941 ti_free_rx_ring_jumbo(sc); 3942 3943 /* Free mini RX list. */ 3944 ti_free_rx_ring_mini(sc); 3945 3946 /* Free TX buffers. */ 3947 ti_free_tx_ring(sc); 3948 3949 sc->ti_ev_prodidx.ti_idx = 0; 3950 sc->ti_return_prodidx.ti_idx = 0; 3951 sc->ti_tx_considx.ti_idx = 0; 3952 sc->ti_tx_saved_considx = TI_TXCONS_UNSET; 3953 3954 ifp->if_drv_flags &= ~(IFF_DRV_RUNNING | IFF_DRV_OACTIVE); 3955 callout_stop(&sc->ti_watchdog); 3956 } 3957 3958 /* 3959 * Stop all chip I/O so that the kernel's probe routines don't 3960 * get confused by errant DMAs when rebooting. 3961 */ 3962 static int 3963 ti_shutdown(device_t dev) 3964 { 3965 struct ti_softc *sc; 3966 3967 sc = device_get_softc(dev); 3968 TI_LOCK(sc); 3969 ti_chipinit(sc); 3970 TI_UNLOCK(sc); 3971 3972 return (0); 3973 } 3974 3975 static void 3976 ti_sysctl_node(struct ti_softc *sc) 3977 { 3978 struct sysctl_ctx_list *ctx; 3979 struct sysctl_oid_list *child; 3980 char tname[32]; 3981 3982 ctx = device_get_sysctl_ctx(sc->ti_dev); 3983 child = SYSCTL_CHILDREN(device_get_sysctl_tree(sc->ti_dev)); 3984 3985 /* Use DAC */ 3986 sc->ti_dac = 1; 3987 snprintf(tname, sizeof(tname), "dev.ti.%d.dac", 3988 device_get_unit(sc->ti_dev)); 3989 TUNABLE_INT_FETCH(tname, &sc->ti_dac); 3990 3991 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "rx_coal_ticks", CTLFLAG_RW, 3992 &sc->ti_rx_coal_ticks, 0, "Receive coalcesced ticks"); 3993 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "rx_max_coal_bds", CTLFLAG_RW, 3994 &sc->ti_rx_max_coal_bds, 0, "Receive max coalcesced BDs"); 3995 3996 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_coal_ticks", CTLFLAG_RW, 3997 &sc->ti_tx_coal_ticks, 0, "Send coalcesced ticks"); 3998 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_max_coal_bds", CTLFLAG_RW, 3999 &sc->ti_tx_max_coal_bds, 0, "Send max coalcesced BDs"); 4000 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "tx_buf_ratio", CTLFLAG_RW, 4001 &sc->ti_tx_buf_ratio, 0, 4002 "Ratio of NIC memory devoted to TX buffer"); 4003 4004 SYSCTL_ADD_UINT(ctx, child, OID_AUTO, "stat_ticks", CTLFLAG_RW, 4005 &sc->ti_stat_ticks, 0, 4006 "Number of clock ticks for statistics update interval"); 4007 4008 /* Pull in device tunables. */ 4009 sc->ti_rx_coal_ticks = 170; 4010 resource_int_value(device_get_name(sc->ti_dev), 4011 device_get_unit(sc->ti_dev), "rx_coal_ticks", 4012 &sc->ti_rx_coal_ticks); 4013 sc->ti_rx_max_coal_bds = 64; 4014 resource_int_value(device_get_name(sc->ti_dev), 4015 device_get_unit(sc->ti_dev), "rx_max_coal_bds", 4016 &sc->ti_rx_max_coal_bds); 4017 4018 sc->ti_tx_coal_ticks = TI_TICKS_PER_SEC / 500; 4019 resource_int_value(device_get_name(sc->ti_dev), 4020 device_get_unit(sc->ti_dev), "tx_coal_ticks", 4021 &sc->ti_tx_coal_ticks); 4022 sc->ti_tx_max_coal_bds = 32; 4023 resource_int_value(device_get_name(sc->ti_dev), 4024 device_get_unit(sc->ti_dev), "tx_max_coal_bds", 4025 &sc->ti_tx_max_coal_bds); 4026 sc->ti_tx_buf_ratio = 21; 4027 resource_int_value(device_get_name(sc->ti_dev), 4028 device_get_unit(sc->ti_dev), "tx_buf_ratio", 4029 &sc->ti_tx_buf_ratio); 4030 4031 sc->ti_stat_ticks = 2 * TI_TICKS_PER_SEC; 4032 resource_int_value(device_get_name(sc->ti_dev), 4033 device_get_unit(sc->ti_dev), "stat_ticks", 4034 &sc->ti_stat_ticks); 4035 }
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