1/* $NetBSD: if_ni.c,v 1.50 2022/09/18 16:51:28 thorpej Exp $ */ 2/* 3 * Copyright (c) 2000 Ludd, University of Lule}, Sweden. All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 3. All advertising materials mentioning features or use of this software 14 * must display the following acknowledgement: 15 * This product includes software developed at Ludd, University of 16 * Lule}, Sweden and its contributors. 17 * 4. The name of the author may not be used to endorse or promote products 18 * derived from this software without specific prior written permission 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 21 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 22 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 23 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 24 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 25 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 26 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 27 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 28 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 29 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 30 */ 31 32/* 33 * Driver for DEBNA/DEBNT/DEBNK ethernet cards. 34 * Things that is still to do: 35 * Collect statistics. 36 */ 37 38#include <sys/cdefs.h> 39__KERNEL_RCSID(0, "$NetBSD: if_ni.c,v 1.50 2022/09/18 16:51:28 thorpej Exp $"); 40 41#include "opt_inet.h" 42 43#include <sys/param.h> 44#include <sys/mbuf.h> 45#include <sys/socket.h> 46#include <sys/device.h> 47#include <sys/systm.h> 48#include <sys/sockio.h> 49#include <sys/sched.h> 50 51#include <net/if.h> 52#include <net/if_ether.h> 53#include <net/if_dl.h> 54#include <net/bpf.h> 55 56#include <netinet/in.h> 57#include <netinet/if_inarp.h> 58 59#include <sys/bus.h> 60#ifdef __vax__ 61#include <machine/mtpr.h> 62#include <machine/pte.h> 63#endif 64 65#include <dev/bi/bireg.h> 66#include <dev/bi/bivar.h> 67 68#include "ioconf.h" 69#include "locators.h" 70 71/* 72 * Tunable buffer parameters. Good idea to have them as power of 8; then 73 * they will fit into a logical VAX page. 74 */ 75#define NMSGBUF 8 /* Message queue entries */ 76#define NTXBUF 16 /* Transmit queue entries */ 77#define NTXFRAGS 8 /* Number of transmit buffer fragments */ 78#define NRXBUF 24 /* Receive queue entries */ 79#define NBDESCS (NTXBUF * NTXFRAGS + NRXBUF) 80#define NQUEUES 3 /* RX + TX + MSG */ 81#define PKTHDR 18 /* Length of (control) packet header */ 82#define RXADD 18 /* Additional length of receive datagram */ 83#define TXADD (10+NTXFRAGS*8) /* "" transmit "" */ 84#define MSGADD 134 /* "" message "" */ 85 86#include <dev/bi/if_nireg.h> /* XXX include earlier */ 87 88/* 89 * Macros for (most cases of) insqti/remqhi. 90 * Retry NRETRIES times to do the operation, if it still fails assume 91 * a lost lock and panic. 92 */ 93#define NRETRIES 100 94#define INSQTI(e, h) ({ \ 95 int ret = 0, __i; \ 96 for (__i = 0; __i < NRETRIES; __i++) { \ 97 if ((ret = insqti(e, h)) != ILCK_FAILED) \ 98 break; \ 99 } \ 100 if (__i == NRETRIES) \ 101 panic("ni: insqti failed at %d", __LINE__); \ 102 ret; \ 103}) 104#define REMQHI(h) ({ \ 105 int __i; void *ret = NULL; \ 106 for (__i = 0; __i < NRETRIES; __i++) { \ 107 if ((ret = remqhi(h)) != (void *)ILCK_FAILED) \ 108 break; \ 109 } \ 110 if (__i == NRETRIES) \ 111 panic("ni: remqhi failed at %d", __LINE__); \ 112 ret; \ 113}) 114 115 116#define nipqb (&sc->sc_gvppqb->nc_pqb) 117#define gvp sc->sc_gvppqb 118#define fqb sc->sc_fqb 119#define bbd sc->sc_bbd 120 121struct ni_softc { 122 device_t sc_dev; /* Configuration common part */ 123 struct evcnt sc_intrcnt; /* Interrupt coounting */ 124 struct ethercom sc_ec; /* Ethernet common part */ 125#define sc_if sc_ec.ec_if /* network-visible interface */ 126 bus_space_tag_t sc_iot; 127 bus_addr_t sc_ioh; 128 bus_dma_tag_t sc_dmat; 129 struct ni_gvppqb *sc_gvppqb; /* Port queue block */ 130 struct ni_gvppqb *sc_pgvppqb; /* Phys address of PQB */ 131 struct ni_fqb *sc_fqb; /* Free Queue block */ 132 struct ni_bbd *sc_bbd; /* Buffer descriptors */ 133 uint8_t sc_enaddr[ETHER_ADDR_LEN]; 134}; 135 136static int nimatch(device_t, cfdata_t, void *); 137static void niattach(device_t, device_t, void *); 138static void niinit(struct ni_softc *); 139static void nistart(struct ifnet *); 140static void niintr(void *); 141static int niioctl(struct ifnet *, u_long, void *); 142static int ni_add_rxbuf(struct ni_softc *, struct ni_dg *, int); 143static void ni_setup(struct ni_softc *); 144static void nitimeout(struct ifnet *); 145static void ni_shutdown(void *); 146static void ni_getpgs(struct ni_softc *, int, void **, paddr_t *); 147static int failtest(struct ni_softc *, int, int, int, const char *); 148 149volatile int endwait, retry; /* Used during autoconfig */ 150 151CFATTACH_DECL_NEW(ni, sizeof(struct ni_softc), 152 nimatch, niattach, NULL, NULL); 153 154#define NI_WREG(csr, val) \ 155 bus_space_write_4(sc->sc_iot, sc->sc_ioh, csr, val) 156#define NI_RREG(csr) \ 157 bus_space_read_4(sc->sc_iot, sc->sc_ioh, csr) 158 159#define WAITREG(csr,val) while (NI_RREG(csr) & val); 160/* 161 * Check for present device. 162 */ 163static int 164nimatch(device_t parent, cfdata_t cf, void *aux) 165{ 166 struct bi_attach_args *ba = aux; 167 u_short type; 168 169 type = bus_space_read_2(ba->ba_iot, ba->ba_ioh, BIREG_DTYPE); 170 if (type != BIDT_DEBNA && type != BIDT_DEBNT && type != BIDT_DEBNK) 171 return 0; 172 173 if (cf->cf_loc[BICF_NODE] != BICF_NODE_DEFAULT && 174 cf->cf_loc[BICF_NODE] != ba->ba_nodenr) 175 return 0; 176 177 return 1; 178} 179 180/* 181 * Allocate a bunch of descriptor-safe memory. 182 * We need to get the structures from the beginning of its own pages. 183 */ 184static void 185ni_getpgs(struct ni_softc *sc, int size, void **v, paddr_t *p) 186{ 187 bus_dma_segment_t seg; 188 int nsegs, error; 189 190 if ((error = bus_dmamem_alloc(sc->sc_dmat, size, PAGE_SIZE, 0, &seg, 1, 191 &nsegs, BUS_DMA_NOWAIT)) != 0) 192 panic(" unable to allocate memory: error %d", error); 193 194 if ((error = bus_dmamem_map(sc->sc_dmat, &seg, nsegs, size, v, 195 BUS_DMA_NOWAIT | BUS_DMA_COHERENT)) != 0) 196 panic(" unable to map memory: error %d", error); 197 198 if (p) 199 *p = seg.ds_addr; 200 memset(*v, 0, size); 201} 202 203static int 204failtest(struct ni_softc *sc, int reg, int mask, int test, const char *str) 205{ 206 int i = 100; 207 208 do { 209 DELAY(100000); 210 } while (((NI_RREG(reg) & mask) != test) && --i); 211 212 if (i == 0) { 213 printf("%s: %s\n", device_xname(sc->sc_dev), str); 214 return 1; 215 } 216 return 0; 217} 218 219 220/* 221 * Interface exists: make available by filling in network interface 222 * record. System will initialize the interface when it is ready 223 * to accept packets. 224 */ 225static void 226niattach(device_t parent, device_t self, void *aux) 227{ 228 struct bi_attach_args *ba = aux; 229 struct ni_softc *sc = device_private(self); 230 struct ifnet *ifp = (struct ifnet *)&sc->sc_if; 231 struct ni_msg *msg; 232 struct ni_ptdb *ptdb; 233 void *va; 234 int i, j, s; 235 u_short type; 236 237 sc->sc_dev = self; 238 239 type = bus_space_read_2(ba->ba_iot, ba->ba_ioh, BIREG_DTYPE); 240 aprint_normal(": DEBN%c\n", type == BIDT_DEBNA ? 'A' 241 : type == BIDT_DEBNT ? 'T' : 'K'); 242 sc->sc_iot = ba->ba_iot; 243 sc->sc_ioh = ba->ba_ioh; 244 sc->sc_dmat = ba->ba_dmat; 245 246 bi_intr_establish(ba->ba_icookie, ba->ba_ivec, 247 niintr, sc, &sc->sc_intrcnt); 248 evcnt_attach_dynamic(&sc->sc_intrcnt, EVCNT_TYPE_INTR, NULL, 249 device_xname(self), "intr"); 250 251 ni_getpgs(sc, sizeof(struct ni_gvppqb), (void **)&sc->sc_gvppqb, 252 (paddr_t *)&sc->sc_pgvppqb); 253 ni_getpgs(sc, sizeof(struct ni_fqb), (void **)&sc->sc_fqb, 0); 254 ni_getpgs(sc, NBDESCS * sizeof(struct ni_bbd), 255 (void **)&sc->sc_bbd, 0); 256 /* 257 * Zero the newly allocated memory. 258 */ 259 260 nipqb->np_veclvl = (ba->ba_ivec << 2) + 2; 261 nipqb->np_node = ba->ba_intcpu; 262 nipqb->np_vpqb = (uint32_t)gvp; 263#ifdef __vax__ 264 nipqb->np_spt = nipqb->np_gpt = mfpr(PR_SBR); 265 nipqb->np_sptlen = nipqb->np_gptlen = mfpr(PR_SLR); 266#else 267#error Must fix support for non-vax. 268#endif 269 nipqb->np_bvplvl = 1; 270 nipqb->np_vfqb = (uint32_t)fqb; 271 nipqb->np_vbdt = (uint32_t)bbd; 272 nipqb->np_nbdr = NBDESCS; 273 274 /* Free queue block */ 275 nipqb->np_freeq = NQUEUES; 276 fqb->nf_mlen = PKTHDR+MSGADD; 277 fqb->nf_dlen = PKTHDR+TXADD; 278 fqb->nf_rlen = PKTHDR+RXADD; 279 280 strlcpy(ifp->if_xname, device_xname(self), IFNAMSIZ); 281 ifp->if_softc = sc; 282 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 283 ifp->if_start = nistart; 284 ifp->if_ioctl = niioctl; 285 ifp->if_watchdog = nitimeout; 286 IFQ_SET_READY(&ifp->if_snd); 287 288 /* 289 * Start init sequence. 290 */ 291 292 /* Reset the node */ 293 NI_WREG(BIREG_VAXBICSR, NI_RREG(BIREG_VAXBICSR) | BICSR_NRST); 294 DELAY(500000); 295 i = 20; 296 while ((NI_RREG(BIREG_VAXBICSR) & BICSR_BROKE) && --i) 297 DELAY(500000); 298 if (i == 0) { 299 aprint_error_dev(self, "BROKE bit set after reset\n"); 300 return; 301 } 302 303 /* Check state */ 304 if (failtest(sc, NI_PSR, PSR_STATE, PSR_UNDEF, "not undefined state")) 305 return; 306 307 /* Clear owner bits */ 308 NI_WREG(NI_PSR, NI_RREG(NI_PSR) & ~PSR_OWN); 309 NI_WREG(NI_PCR, NI_RREG(NI_PCR) & ~PCR_OWN); 310 311 /* kick off init */ 312 NI_WREG(NI_PCR, (uint32_t)sc->sc_pgvppqb | PCR_INIT | PCR_OWN); 313 while (NI_RREG(NI_PCR) & PCR_OWN) 314 DELAY(100000); 315 316 /* Check state */ 317 if (failtest(sc, NI_PSR, PSR_INITED, PSR_INITED, "failed initialize")) 318 return; 319 320 NI_WREG(NI_PSR, NI_RREG(NI_PSR) & ~PSR_OWN); 321 322 WAITREG(NI_PCR, PCR_OWN); 323 NI_WREG(NI_PCR, PCR_OWN | PCR_ENABLE); 324 WAITREG(NI_PCR, PCR_OWN); 325 WAITREG(NI_PSR, PSR_OWN); 326 327 /* Check state */ 328 if (failtest(sc, NI_PSR, PSR_STATE, PSR_ENABLED, "failed enable")) 329 return; 330 331 NI_WREG(NI_PSR, NI_RREG(NI_PSR) & ~PSR_OWN); 332 333 /* 334 * The message queue packets must be located on the beginning 335 * of a page. A VAX page is 512 bytes, but it clusters 8 pages. 336 * This knowledge is used here when allocating pages. 337 * !!! How should this be done on MIPS and Alpha??? !!! 338 */ 339#if NBPG < 4096 340#error pagesize too small 341#endif 342 s = splvm(); 343 /* Set up message free queue */ 344 ni_getpgs(sc, NMSGBUF * 512, &va, 0); 345 for (i = 0; i < NMSGBUF; i++) { 346 msg = (void *)((char *)va + i * 512); 347 INSQTI(msg, &fqb->nf_mforw); 348 } 349 WAITREG(NI_PCR, PCR_OWN); 350 NI_WREG(NI_PCR, PCR_FREEQNE | PCR_MFREEQ | PCR_OWN); 351 WAITREG(NI_PCR, PCR_OWN); 352 353 /* Set up xmit queue */ 354 ni_getpgs(sc, NTXBUF * 512, &va, 0); 355 for (i = 0; i < NTXBUF; i++) { 356 struct ni_dg *data; 357 358 data = (void *)((char *)va + i * 512); 359 data->nd_status = 0; 360 data->nd_len = TXADD; 361 data->nd_ptdbidx = 1; 362 data->nd_opcode = BVP_DGRAM; 363 for (j = 0; j < NTXFRAGS; j++) { 364 data->bufs[j]._offset = 0; 365 data->bufs[j]._key = 1; 366 bbd[i * NTXFRAGS + j].nb_key = 1; 367 bbd[i * NTXFRAGS + j].nb_status = 0; 368 data->bufs[j]._index = i * NTXFRAGS + j; 369 } 370 INSQTI(data, &fqb->nf_dforw); 371 } 372 WAITREG(NI_PCR, PCR_OWN); 373 NI_WREG(NI_PCR, PCR_FREEQNE | PCR_DFREEQ | PCR_OWN); 374 WAITREG(NI_PCR, PCR_OWN); 375 376 /* recv buffers */ 377 ni_getpgs(sc, NRXBUF * 512, &va, 0); 378 for (i = 0; i < NRXBUF; i++) { 379 struct ni_dg *data; 380 int idx; 381 382 data = (void *)((char *)va + i * 512); 383 data->nd_len = RXADD; 384 data->nd_opcode = BVP_DGRAMRX; 385 data->nd_ptdbidx = 2; 386 data->bufs[0]._key = 1; 387 388 idx = NTXBUF * NTXFRAGS + i; 389 if (ni_add_rxbuf(sc, data, idx)) 390 panic("niattach: ni_add_rxbuf: out of mbufs"); 391 392 INSQTI(data, &fqb->nf_rforw); 393 } 394 WAITREG(NI_PCR, PCR_OWN); 395 NI_WREG(NI_PCR, PCR_FREEQNE | PCR_RFREEQ | PCR_OWN); 396 WAITREG(NI_PCR, PCR_OWN); 397 398 splx(s); 399 400 /* Set initial parameters */ 401 msg = REMQHI(&fqb->nf_mforw); 402 403 msg->nm_opcode = BVP_MSG; 404 msg->nm_status = 0; 405 msg->nm_len = sizeof(struct ni_param) + 6; 406 msg->nm_opcode2 = NI_WPARAM; 407 ((struct ni_param *)&msg->nm_text[0])->np_flags = NP_PAD; 408 409 endwait = retry = 0; 410 INSQTI(msg, &gvp->nc_forw0); 411 412retry: WAITREG(NI_PCR, PCR_OWN); 413 NI_WREG(NI_PCR, PCR_CMDQNE | PCR_CMDQ0 | PCR_OWN); 414 WAITREG(NI_PCR, PCR_OWN); 415 i = 1000; 416 while (endwait == 0 && --i) 417 DELAY(10000); 418 419 if (endwait == 0) { 420 if (++retry < 3) 421 goto retry; 422 aprint_error_dev(self, "no response to set params\n"); 423 return; 424 } 425 426 /* Clear counters */ 427 msg = REMQHI(&fqb->nf_mforw); 428 msg->nm_opcode = BVP_MSG; 429 msg->nm_status = 0; 430 msg->nm_len = sizeof(struct ni_param) + 6; 431 msg->nm_opcode2 = NI_RCCNTR; 432 433 INSQTI(msg, &gvp->nc_forw0); 434 435 WAITREG(NI_PCR, PCR_OWN); 436 NI_WREG(NI_PCR, PCR_CMDQNE | PCR_CMDQ0 | PCR_OWN); 437 WAITREG(NI_PCR, PCR_OWN); 438 439 /* Enable transmit logic */ 440 msg = REMQHI(&fqb->nf_mforw); 441 442 msg->nm_opcode = BVP_MSG; 443 msg->nm_status = 0; 444 msg->nm_len = 18; 445 msg->nm_opcode2 = NI_STPTDB; 446 ptdb = (struct ni_ptdb *)&msg->nm_text[0]; 447 memset(ptdb, 0, sizeof(struct ni_ptdb)); 448 ptdb->np_index = 1; 449 ptdb->np_fque = 1; 450 451 INSQTI(msg, &gvp->nc_forw0); 452 453 WAITREG(NI_PCR, PCR_OWN); 454 NI_WREG(NI_PCR, PCR_CMDQNE | PCR_CMDQ0 | PCR_OWN); 455 WAITREG(NI_PCR, PCR_OWN); 456 457 /* Wait for everything to finish */ 458 WAITREG(NI_PSR, PSR_OWN); 459 460 aprint_normal_dev(self, "hardware address %s\n", 461 ether_sprintf(sc->sc_enaddr)); 462 463 /* 464 * Attach the interface. 465 */ 466 if_attach(ifp); 467 ether_ifattach(ifp, sc->sc_enaddr); 468 if (shutdownhook_establish(ni_shutdown, sc) == 0) 469 aprint_error_dev(self, 470 "WARNING: unable to establish shutdown hook\n"); 471} 472 473/* 474 * Initialization of interface. 475 */ 476void 477niinit(struct ni_softc *sc) 478{ 479 struct ifnet *ifp = &sc->sc_if; 480 481 /* 482 * Set flags (so ni_setup() do the right thing). 483 */ 484 ifp->if_flags |= IFF_RUNNING; 485 486 /* 487 * Send setup messages so that the rx/tx locic starts. 488 */ 489 ni_setup(sc); 490 491} 492 493/* 494 * Start output on interface. 495 */ 496void 497nistart(struct ifnet *ifp) 498{ 499 struct ni_softc *sc = ifp->if_softc; 500 struct ni_dg *data; 501 struct ni_bbd *bdp; 502 struct mbuf *m, *m0; 503 int i, cnt, res, mlen; 504 505#ifdef DEBUG 506 if (ifp->if_flags & IFF_DEBUG) 507 printf("%s: nistart\n", device_xname(sc->sc_dev)); 508#endif 509 510 while (fqb->nf_dforw) { 511 IFQ_POLL(&ifp->if_snd, m); 512 if (m == 0) 513 break; 514 515 data = REMQHI(&fqb->nf_dforw); 516 if ((int)data == Q_EMPTY) { 517 break; 518 } 519 520 IFQ_DEQUEUE(&ifp->if_snd, m); 521 522 /* 523 * Count number of mbufs in chain. 524 * Always do DMA directly from mbufs, therefore the transmit 525 * ring is really big. 526 */ 527 for (m0 = m, cnt = 0; m0; m0 = m0->m_next) 528 if (m0->m_len) 529 cnt++; 530 if (cnt > NTXFRAGS) 531 panic("nistart"); /* XXX */ 532 533 bpf_mtap(ifp, m, BPF_D_OUT); 534 bdp = &bbd[(data->bufs[0]._index & 0x7fff)]; 535 for (m0 = m, i = 0, mlen = 0; m0; m0 = m0->m_next) { 536 if (m0->m_len == 0) 537 continue; 538 bdp->nb_status = (mtod(m0, uint32_t) & NIBD_OFFSET) | 539 NIBD_VALID; 540 bdp->nb_pte = (uint32_t)kvtopte(mtod(m0, void *)); 541 bdp->nb_len = m0->m_len; 542 data->bufs[i]._offset = 0; 543 data->bufs[i]._len = bdp->nb_len; 544 data->bufs[i]._index |= NIDG_CHAIN; 545 mlen += bdp->nb_len; 546 bdp++; 547 i++; 548 } 549 data->nd_opcode = BVP_DGRAM; 550 data->nd_pad3 = 1; 551 data->nd_ptdbidx = 1; 552 data->nd_len = 10 + i * 8; 553 data->bufs[i - 1]._index &= ~NIDG_CHAIN; 554 data->nd_cmdref = (uint32_t)m; 555#ifdef DEBUG 556 if (ifp->if_flags & IFF_DEBUG) 557 printf("%s: sending %d bytes (%d segments)\n", 558 device_xname(sc->sc_dev), mlen, i); 559#endif 560 561 res = INSQTI(data, &gvp->nc_forw0); 562 if (res == Q_EMPTY) { 563 WAITREG(NI_PCR, PCR_OWN); 564 NI_WREG(NI_PCR, PCR_CMDQNE | PCR_CMDQ0 | PCR_OWN); 565 } 566 } 567} 568 569void 570niintr(void *arg) 571{ 572 struct ni_softc *sc = arg; 573 struct ni_dg *data; 574 struct ni_msg *msg; 575 struct ifnet *ifp = &sc->sc_if; 576 struct ni_bbd *bd; 577 struct mbuf *m; 578 int idx, res; 579 580 if ((NI_RREG(NI_PSR) & PSR_STATE) != PSR_ENABLED) 581 return; 582 583 if ((NI_RREG(NI_PSR) & PSR_ERR)) 584 printf("%s: PSR %x\n", device_xname(sc->sc_dev), 585 NI_RREG(NI_PSR)); 586 587 KERNEL_LOCK(1, NULL); 588 /* Got any response packets? */ 589 while ((NI_RREG(NI_PSR) & PSR_RSQ) && (data = REMQHI(&gvp->nc_forwr))) { 590 591 switch (data->nd_opcode) { 592 case BVP_DGRAMRX: /* Receive datagram */ 593 idx = data->bufs[0]._index; 594 bd = &bbd[idx]; 595 m = (void *)data->nd_cmdref; 596 m->m_pkthdr.len = m->m_len = 597 data->bufs[0]._len - ETHER_CRC_LEN; 598 m_set_rcvif(m, ifp); 599 if (ni_add_rxbuf(sc, data, idx)) { 600 bd->nb_len = (m->m_ext.ext_size - 2); 601 bd->nb_pte = 602 (long)kvtopte(m->m_ext.ext_buf); 603 bd->nb_status = 2 | NIBD_VALID; 604 bd->nb_key = 1; 605 } 606 data->nd_len = RXADD; 607 data->nd_status = 0; 608 res = INSQTI(data, &fqb->nf_rforw); 609 if (res == Q_EMPTY) { 610 WAITREG(NI_PCR, PCR_OWN); 611 NI_WREG(NI_PCR, 612 PCR_FREEQNE | PCR_RFREEQ | PCR_OWN); 613 } 614 if (m == (void *)data->nd_cmdref) 615 break; /* Out of mbufs */ 616 617 if_percpuq_enqueue(ifp->if_percpuq, m); 618 break; 619 620 case BVP_DGRAM: 621 m = (struct mbuf *)data->nd_cmdref; 622 m_freem(m); 623 res = INSQTI(data, &fqb->nf_dforw); 624 if (res == Q_EMPTY) { 625 WAITREG(NI_PCR, PCR_OWN); 626 NI_WREG(NI_PCR, 627 PCR_FREEQNE | PCR_DFREEQ | PCR_OWN); 628 } 629 break; 630 631 case BVP_MSGRX: 632 msg = (struct ni_msg *)data; 633 switch (msg->nm_opcode2) { 634 case NI_WPARAM: 635 memcpy(sc->sc_enaddr, ((struct ni_param *)&msg->nm_text[0])->np_dpa, ETHER_ADDR_LEN); 636 endwait = 1; 637 break; 638 639 case NI_RCCNTR: 640 case NI_CLPTDB: 641 case NI_STPTDB: 642 break; 643 644 default: 645 printf("Unkn resp %d\n", 646 msg->nm_opcode2); 647 break; 648 } 649 res = INSQTI(data, &fqb->nf_mforw); 650 if (res == Q_EMPTY) { 651 WAITREG(NI_PCR, PCR_OWN); 652 NI_WREG(NI_PCR, 653 PCR_FREEQNE | PCR_MFREEQ | PCR_OWN); 654 } 655 break; 656 657 default: 658 printf("Unknown opcode %d\n", data->nd_opcode); 659 res = INSQTI(data, &fqb->nf_mforw); 660 if (res == Q_EMPTY) { 661 WAITREG(NI_PCR, PCR_OWN); 662 NI_WREG(NI_PCR, 663 PCR_FREEQNE | PCR_MFREEQ | PCR_OWN); 664 } 665 } 666 } 667 668 /* Try to kick on the start routine again */ 669 nistart(ifp); 670 671 NI_WREG(NI_PSR, NI_RREG(NI_PSR) & ~(PSR_OWN | PSR_RSQ)); 672 KERNEL_UNLOCK_ONE(NULL); 673} 674 675/* 676 * Process an ioctl request. 677 */ 678int 679niioctl(struct ifnet *ifp, u_long cmd, void *data) 680{ 681 struct ni_softc *sc = ifp->if_softc; 682 struct ifaddr *ifa = (struct ifaddr *)data; 683 int s = splnet(), error = 0; 684 685 switch (cmd) { 686 687 case SIOCINITIFADDR: 688 ifp->if_flags |= IFF_UP; 689 switch (ifa->ifa_addr->sa_family) { 690#ifdef INET 691 case AF_INET: 692 niinit(sc); 693 arp_ifinit(ifp, ifa); 694 break; 695#endif 696 } 697 break; 698 699 case SIOCSIFFLAGS: 700 if ((error = ifioctl_common(ifp, cmd, data)) != 0) 701 break; 702 switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { 703 case IFF_RUNNING: 704 /* 705 * If interface is marked down and it is running, 706 * stop it. 707 */ 708 ifp->if_flags &= ~IFF_RUNNING; 709 ni_setup(sc); 710 break; 711 case IFF_UP: 712 /* 713 * If interface it marked up and it is stopped, then 714 * start it. 715 */ 716 niinit(sc); 717 break; 718 case IFF_UP | IFF_RUNNING: 719 /* 720 * Send a new setup packet to match any new changes. 721 * (Like IFF_PROMISC etc) 722 */ 723 ni_setup(sc); 724 break; 725 default: 726 break; 727 } 728 break; 729 730 case SIOCADDMULTI: 731 case SIOCDELMULTI: 732 /* 733 * Update our multicast list. 734 */ 735 if ((error = ether_ioctl(ifp, cmd, data)) == ENETRESET) { 736 /* 737 * Multicast list has changed; set the hardware filter 738 * accordingly. 739 */ 740 if (ifp->if_flags & IFF_RUNNING) 741 ni_setup(sc); 742 error = 0; 743 } 744 break; 745 746 default: 747 error = ether_ioctl(ifp, cmd, data); 748 break; 749 } 750 splx(s); 751 return error; 752} 753 754/* 755 * Add a receive buffer to the indicated descriptor. 756 */ 757int 758ni_add_rxbuf(struct ni_softc *sc, struct ni_dg *data, int idx) 759{ 760 struct ni_bbd *bd = &bbd[idx]; 761 struct mbuf *m; 762 763 MGETHDR(m, M_DONTWAIT, MT_DATA); 764 if (m == NULL) 765 return ENOBUFS; 766 767 MCLGET(m, M_DONTWAIT); 768 if ((m->m_flags & M_EXT) == 0) { 769 m_freem(m); 770 return ENOBUFS; 771 } 772 773 m->m_data += 2; 774 bd->nb_len = (m->m_ext.ext_size - 2); 775 bd->nb_pte = (long)kvtopte(m->m_ext.ext_buf); 776 bd->nb_status = 2 | NIBD_VALID; 777 bd->nb_key = 1; 778 779 data->bufs[0]._offset = 0; 780 data->bufs[0]._len = bd->nb_len; 781 data->bufs[0]._index = idx; 782 data->nd_cmdref = (long)m; 783 784 return 0; 785} 786 787/* 788 * Create setup packet and put in queue for sending. 789 */ 790void 791ni_setup(struct ni_softc *sc) 792{ 793 struct ethercom *ec = &sc->sc_ec; 794 struct ifnet *ifp = &sc->sc_if; 795 struct ni_msg *msg; 796 struct ni_ptdb *ptdb; 797 struct ether_multi *enm; 798 struct ether_multistep step; 799 int i, res; 800 801 msg = REMQHI(&fqb->nf_mforw); 802 if ((int)msg == Q_EMPTY) 803 return; /* What to do? */ 804 805 ptdb = (struct ni_ptdb *)&msg->nm_text[0]; 806 memset(ptdb, 0, sizeof(struct ni_ptdb)); 807 808 msg->nm_opcode = BVP_MSG; 809 msg->nm_len = 18; 810 ptdb->np_index = 2; /* definition type index */ 811 ptdb->np_fque = 2; /* Free queue */ 812 if (ifp->if_flags & IFF_RUNNING) { 813 msg->nm_opcode2 = NI_STPTDB; 814 ptdb->np_type = ETHERTYPE_IP; 815 ptdb->np_flags = PTDB_UNKN | PTDB_BDC; 816 if (ifp->if_flags & IFF_PROMISC) 817 ptdb->np_flags |= PTDB_PROMISC; 818 memset(ptdb->np_mcast[0], 0xff, ETHER_ADDR_LEN); /* Broadcast */ 819 ptdb->np_adrlen = 1; 820 msg->nm_len += 8; 821 ifp->if_flags &= ~IFF_ALLMULTI; 822 if ((ifp->if_flags & IFF_PROMISC) == 0) { 823 ETHER_LOCK(ec); 824 ETHER_FIRST_MULTI(step, ec, enm); 825 i = 1; 826 while (enm != NULL) { 827 if (memcmp(enm->enm_addrlo, enm->enm_addrhi, 6)) { 828 ifp->if_flags |= IFF_ALLMULTI; 829 ptdb->np_flags |= PTDB_AMC; 830 break; 831 } 832 msg->nm_len += 8; 833 ptdb->np_adrlen++; 834 memcpy(ptdb->np_mcast[i++], enm->enm_addrlo, 835 ETHER_ADDR_LEN); 836 ETHER_NEXT_MULTI(step, enm); 837 } 838 ETHER_UNLOCK(ec); 839 } 840 } else 841 msg->nm_opcode2 = NI_CLPTDB; 842 843 res = INSQTI(msg, &gvp->nc_forw0); 844 if (res == Q_EMPTY) { 845 WAITREG(NI_PCR, PCR_OWN); 846 NI_WREG(NI_PCR, PCR_CMDQNE | PCR_CMDQ0 | PCR_OWN); 847 } 848} 849 850/* 851 * Check for dead transmit logic. Not uncommon. 852 */ 853void 854nitimeout(struct ifnet *ifp) 855{ 856#if 0 857 struct ni_softc *sc = ifp->if_softc; 858 859 if (sc->sc_inq == 0) 860 return; 861 862 printf("%s: xmit logic died, resetting...\n", device_xname(sc->sc_dev)); 863 /* 864 * Do a reset of interface, to get it going again. 865 * Will it work by just restart the transmit logic? 866 */ 867 niinit(sc); 868#endif 869} 870 871/* 872 * Shutdown hook. Make sure the interface is stopped at reboot. 873 */ 874void 875ni_shutdown(void *arg) 876{ 877 struct ni_softc *sc = arg; 878 879 WAITREG(NI_PCR, PCR_OWN); 880 NI_WREG(NI_PCR, PCR_OWN | PCR_SHUTDOWN); 881 WAITREG(NI_PCR, PCR_OWN); 882 WAITREG(NI_PSR, PSR_OWN); 883} 884