if_kue.c revision 1.76
1 /* $NetBSD: if_kue.c,v 1.76 2012/03/10 23:01:07 mrg Exp $ */ 2 /* 3 * Copyright (c) 1997, 1998, 1999, 2000 4 * Bill Paul <wpaul (at) ee.columbia.edu>. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Bill Paul. 17 * 4. Neither the name of the author nor the names of any co-contributors 18 * may be used to endorse or promote products derived from this software 19 * without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND 22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 24 * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD 25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF 31 * THE POSSIBILITY OF SUCH DAMAGE. 32 * 33 * $FreeBSD: src/sys/dev/usb/if_kue.c,v 1.14 2000/01/14 01:36:15 wpaul Exp $ 34 */ 35 36 /* 37 * Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver. 38 * 39 * Written by Bill Paul <wpaul (at) ee.columbia.edu> 40 * Electrical Engineering Department 41 * Columbia University, New York City 42 */ 43 44 /* 45 * The KLSI USB to ethernet adapter chip contains an USB serial interface, 46 * ethernet MAC and embedded microcontroller (called the QT Engine). 47 * The chip must have firmware loaded into it before it will operate. 48 * Packets are passed between the chip and host via bulk transfers. 49 * There is an interrupt endpoint mentioned in the software spec, however 50 * it's currently unused. This device is 10Mbps half-duplex only, hence 51 * there is no media selection logic. The MAC supports a 128 entry 52 * multicast filter, though the exact size of the filter can depend 53 * on the firmware. Curiously, while the software spec describes various 54 * ethernet statistics counters, my sample adapter and firmware combination 55 * claims not to support any statistics counters at all. 56 * 57 * Note that once we load the firmware in the device, we have to be 58 * careful not to load it again: if you restart your computer but 59 * leave the adapter attached to the USB controller, it may remain 60 * powered on and retain its firmware. In this case, we don't need 61 * to load the firmware a second time. 62 * 63 * Special thanks to Rob Furr for providing an ADS Technologies 64 * adapter for development and testing. No monkeys were harmed during 65 * the development of this driver. 66 */ 67 68 /* 69 * Ported to NetBSD and somewhat rewritten by Lennart Augustsson. 70 */ 71 72 #include <sys/cdefs.h> 73 __KERNEL_RCSID(0, "$NetBSD: if_kue.c,v 1.76 2012/03/10 23:01:07 mrg Exp $"); 74 75 #include "opt_inet.h" 76 77 #include <sys/param.h> 78 #include <sys/systm.h> 79 #include <sys/sockio.h> 80 #include <sys/mbuf.h> 81 #include <sys/malloc.h> 82 #include <sys/kernel.h> 83 #include <sys/socket.h> 84 #include <sys/device.h> 85 #include <sys/proc.h> 86 87 #include <sys/rnd.h> 88 89 #include <net/if.h> 90 #include <net/if_arp.h> 91 #include <net/if_dl.h> 92 93 #include <net/bpf.h> 94 95 #include <net/if_ether.h> 96 #ifdef INET 97 #include <netinet/in.h> 98 #include <netinet/if_inarp.h> 99 #endif 100 101 102 #include <dev/usb/usb.h> 103 #include <dev/usb/usbdi.h> 104 #include <dev/usb/usbdi_util.h> 105 #include <dev/usb/usbdevs.h> 106 107 #include <dev/usb/if_kuereg.h> 108 #include <dev/usb/kue_fw.h> 109 110 #ifdef KUE_DEBUG 111 #define DPRINTF(x) if (kuedebug) printf x 112 #define DPRINTFN(n,x) if (kuedebug >= (n)) printf x 113 int kuedebug = 0; 114 #else 115 #define DPRINTF(x) 116 #define DPRINTFN(n,x) 117 #endif 118 119 /* 120 * Various supported device vendors/products. 121 */ 122 static const struct usb_devno kue_devs[] = { 123 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 }, 124 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 }, 125 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 }, 126 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT }, 127 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BTX }, 128 { USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 }, 129 { USB_VENDOR_ASANTE, USB_PRODUCT_ASANTE_EA }, 130 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T }, 131 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_DSB650C }, 132 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T }, 133 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C }, 134 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 }, 135 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX1 }, 136 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX2 }, 137 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT }, 138 { USB_VENDOR_JATON, USB_PRODUCT_JATON_EDA }, 139 { USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_XX1 }, 140 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT }, 141 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN }, 142 { USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T }, 143 { USB_VENDOR_MOBILITY, USB_PRODUCT_MOBILITY_EA }, 144 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 }, 145 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101X }, 146 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET }, 147 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 }, 148 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 }, 149 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA8 }, 150 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA9 }, 151 { USB_VENDOR_PORTSMITH, USB_PRODUCT_PORTSMITH_EEA }, 152 { USB_VENDOR_SHARK, USB_PRODUCT_SHARK_PA }, 153 { USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_U2E }, 154 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB }, 155 }; 156 #define kue_lookup(v, p) (usb_lookup(kue_devs, v, p)) 157 158 int kue_match(device_t, cfdata_t, void *); 159 void kue_attach(device_t, device_t, void *); 160 int kue_detach(device_t, int); 161 int kue_activate(device_t, enum devact); 162 extern struct cfdriver kue_cd; 163 CFATTACH_DECL_NEW(kue, sizeof(struct kue_softc), kue_match, kue_attach, 164 kue_detach, kue_activate); 165 166 static int kue_tx_list_init(struct kue_softc *); 167 static int kue_rx_list_init(struct kue_softc *); 168 static int kue_send(struct kue_softc *, struct mbuf *, int); 169 static int kue_open_pipes(struct kue_softc *); 170 static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 171 static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 172 static void kue_start(struct ifnet *); 173 static int kue_ioctl(struct ifnet *, u_long, void *); 174 static void kue_init(void *); 175 static void kue_stop(struct kue_softc *); 176 static void kue_watchdog(struct ifnet *); 177 178 static void kue_setmulti(struct kue_softc *); 179 static void kue_reset(struct kue_softc *); 180 181 static usbd_status kue_ctl(struct kue_softc *, int, uint8_t, 182 uint16_t, void *, uint32_t); 183 static usbd_status kue_setword(struct kue_softc *, uint8_t, uint16_t); 184 static int kue_load_fw(struct kue_softc *); 185 186 static usbd_status 187 kue_setword(struct kue_softc *sc, uint8_t breq, uint16_t word) 188 { 189 usb_device_request_t req; 190 191 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 192 193 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 194 req.bRequest = breq; 195 USETW(req.wValue, word); 196 USETW(req.wIndex, 0); 197 USETW(req.wLength, 0); 198 199 return (usbd_do_request(sc->kue_udev, &req, NULL)); 200 } 201 202 static usbd_status 203 kue_ctl(struct kue_softc *sc, int rw, uint8_t breq, uint16_t val, 204 void *data, uint32_t len) 205 { 206 usb_device_request_t req; 207 208 DPRINTFN(10,("%s: %s: enter, len=%d\n", device_xname(sc->kue_dev), 209 __func__, len)); 210 211 if (rw == KUE_CTL_WRITE) 212 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 213 else 214 req.bmRequestType = UT_READ_VENDOR_DEVICE; 215 216 req.bRequest = breq; 217 USETW(req.wValue, val); 218 USETW(req.wIndex, 0); 219 USETW(req.wLength, len); 220 221 return (usbd_do_request(sc->kue_udev, &req, data)); 222 } 223 224 static int 225 kue_load_fw(struct kue_softc *sc) 226 { 227 usb_device_descriptor_t dd; 228 usbd_status err; 229 230 DPRINTFN(1,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 231 232 /* 233 * First, check if we even need to load the firmware. 234 * If the device was still attached when the system was 235 * rebooted, it may already have firmware loaded in it. 236 * If this is the case, we don't need to do it again. 237 * And in fact, if we try to load it again, we'll hang, 238 * so we have to avoid this condition if we don't want 239 * to look stupid. 240 * 241 * We can test this quickly by checking the bcdRevision 242 * code. The NIC will return a different revision code if 243 * it's probed while the firmware is still loaded and 244 * running. 245 */ 246 if (usbd_get_device_desc(sc->kue_udev, &dd)) 247 return (EIO); 248 if (UGETW(dd.bcdDevice) == KUE_WARM_REV) { 249 printf("%s: warm boot, no firmware download\n", 250 device_xname(sc->kue_dev)); 251 return (0); 252 } 253 254 printf("%s: cold boot, downloading firmware\n", 255 device_xname(sc->kue_dev)); 256 257 /* Load code segment */ 258 DPRINTFN(1,("%s: kue_load_fw: download code_seg\n", 259 device_xname(sc->kue_dev))); 260 /*XXXUNCONST*/ 261 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 262 0, __UNCONST(kue_code_seg), sizeof(kue_code_seg)); 263 if (err) { 264 printf("%s: failed to load code segment: %s\n", 265 device_xname(sc->kue_dev), usbd_errstr(err)); 266 return (EIO); 267 } 268 269 /* Load fixup segment */ 270 DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n", 271 device_xname(sc->kue_dev))); 272 /*XXXUNCONST*/ 273 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 274 0, __UNCONST(kue_fix_seg), sizeof(kue_fix_seg)); 275 if (err) { 276 printf("%s: failed to load fixup segment: %s\n", 277 device_xname(sc->kue_dev), usbd_errstr(err)); 278 return (EIO); 279 } 280 281 /* Send trigger command. */ 282 DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n", 283 device_xname(sc->kue_dev))); 284 /*XXXUNCONST*/ 285 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 286 0, __UNCONST(kue_trig_seg), sizeof(kue_trig_seg)); 287 if (err) { 288 printf("%s: failed to load trigger segment: %s\n", 289 device_xname(sc->kue_dev), usbd_errstr(err)); 290 return (EIO); 291 } 292 293 usbd_delay_ms(sc->kue_udev, 10); 294 295 /* 296 * Reload device descriptor. 297 * Why? The chip without the firmware loaded returns 298 * one revision code. The chip with the firmware 299 * loaded and running returns a *different* revision 300 * code. This confuses the quirk mechanism, which is 301 * dependent on the revision data. 302 */ 303 (void)usbd_reload_device_desc(sc->kue_udev); 304 305 DPRINTFN(1,("%s: %s: done\n", device_xname(sc->kue_dev), __func__)); 306 307 /* Reset the adapter. */ 308 kue_reset(sc); 309 310 return (0); 311 } 312 313 static void 314 kue_setmulti(struct kue_softc *sc) 315 { 316 struct ifnet *ifp = GET_IFP(sc); 317 struct ether_multi *enm; 318 struct ether_multistep step; 319 int i; 320 321 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 322 323 if (ifp->if_flags & IFF_PROMISC) { 324 allmulti: 325 ifp->if_flags |= IFF_ALLMULTI; 326 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI; 327 sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST; 328 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 329 return; 330 } 331 332 sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI; 333 334 i = 0; 335 ETHER_FIRST_MULTI(step, &sc->kue_ec, enm); 336 while (enm != NULL) { 337 if (i == KUE_MCFILTCNT(sc) || 338 memcmp(enm->enm_addrlo, enm->enm_addrhi, 339 ETHER_ADDR_LEN) != 0) 340 goto allmulti; 341 342 memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN); 343 ETHER_NEXT_MULTI(step, enm); 344 i++; 345 } 346 347 ifp->if_flags &= ~IFF_ALLMULTI; 348 349 sc->kue_rxfilt |= KUE_RXFILT_MULTICAST; 350 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS, 351 i, sc->kue_mcfilters, i * ETHER_ADDR_LEN); 352 353 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 354 } 355 356 /* 357 * Issue a SET_CONFIGURATION command to reset the MAC. This should be 358 * done after the firmware is loaded into the adapter in order to 359 * bring it into proper operation. 360 */ 361 static void 362 kue_reset(struct kue_softc *sc) 363 { 364 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 365 366 if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 1) || 367 usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX, 368 &sc->kue_iface)) 369 printf("%s: reset failed\n", device_xname(sc->kue_dev)); 370 371 /* Wait a little while for the chip to get its brains in order. */ 372 usbd_delay_ms(sc->kue_udev, 10); 373 } 374 375 /* 376 * Probe for a KLSI chip. 377 */ 378 int 379 kue_match(device_t parent, cfdata_t match, void *aux) 380 { 381 struct usb_attach_arg *uaa = aux; 382 383 DPRINTFN(25,("kue_match: enter\n")); 384 385 return (kue_lookup(uaa->vendor, uaa->product) != NULL ? 386 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 387 } 388 389 /* 390 * Attach the interface. Allocate softc structures, do 391 * setup and ethernet/BPF attach. 392 */ 393 void 394 kue_attach(device_t parent, device_t self, void *aux) 395 { 396 struct kue_softc *sc = device_private(self); 397 struct usb_attach_arg *uaa = aux; 398 char *devinfop; 399 int s; 400 struct ifnet *ifp; 401 usbd_device_handle dev = uaa->device; 402 usbd_interface_handle iface; 403 usbd_status err; 404 usb_interface_descriptor_t *id; 405 usb_endpoint_descriptor_t *ed; 406 int i; 407 408 DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev)); 409 410 sc->kue_dev = self; 411 412 aprint_naive("\n"); 413 aprint_normal("\n"); 414 415 devinfop = usbd_devinfo_alloc(dev, 0); 416 aprint_normal_dev(self, "%s\n", devinfop); 417 usbd_devinfo_free(devinfop); 418 419 err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1); 420 if (err) { 421 aprint_error_dev(self, " setting config no failed\n"); 422 return; 423 } 424 425 sc->kue_udev = dev; 426 sc->kue_product = uaa->product; 427 sc->kue_vendor = uaa->vendor; 428 429 /* Load the firmware into the NIC. */ 430 if (kue_load_fw(sc)) { 431 aprint_error_dev(self, "loading firmware failed\n"); 432 return; 433 } 434 435 err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface); 436 if (err) { 437 aprint_error_dev(self, "getting interface handle failed\n"); 438 return; 439 } 440 441 sc->kue_iface = iface; 442 id = usbd_get_interface_descriptor(iface); 443 444 /* Find endpoints. */ 445 for (i = 0; i < id->bNumEndpoints; i++) { 446 ed = usbd_interface2endpoint_descriptor(iface, i); 447 if (ed == NULL) { 448 aprint_error_dev(self, "couldn't get ep %d\n", i); 449 return; 450 } 451 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 452 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 453 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress; 454 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 455 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 456 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress; 457 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 458 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 459 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress; 460 } 461 } 462 463 if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) { 464 aprint_error_dev(self, "missing endpoint\n"); 465 return; 466 } 467 468 /* Read ethernet descriptor */ 469 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR, 470 0, &sc->kue_desc, sizeof(sc->kue_desc)); 471 if (err) { 472 aprint_error_dev(self, "could not read Ethernet descriptor\n"); 473 return; 474 } 475 476 sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN, 477 M_USBDEV, M_NOWAIT); 478 if (sc->kue_mcfilters == NULL) { 479 aprint_error_dev(self, 480 "no memory for multicast filter buffer\n"); 481 return; 482 } 483 484 s = splnet(); 485 486 /* 487 * A KLSI chip was detected. Inform the world. 488 */ 489 aprint_normal_dev(self, "Ethernet address %s\n", 490 ether_sprintf(sc->kue_desc.kue_macaddr)); 491 492 /* Initialize interface info.*/ 493 ifp = GET_IFP(sc); 494 ifp->if_softc = sc; 495 ifp->if_mtu = ETHERMTU; 496 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 497 ifp->if_ioctl = kue_ioctl; 498 ifp->if_start = kue_start; 499 ifp->if_watchdog = kue_watchdog; 500 strncpy(ifp->if_xname, device_xname(sc->kue_dev), IFNAMSIZ); 501 502 IFQ_SET_READY(&ifp->if_snd); 503 504 /* Attach the interface. */ 505 if_attach(ifp); 506 ether_ifattach(ifp, sc->kue_desc.kue_macaddr); 507 rnd_attach_source(&sc->rnd_source, device_xname(sc->kue_dev), 508 RND_TYPE_NET, 0); 509 510 sc->kue_attached = true; 511 splx(s); 512 513 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev, 514 sc->kue_dev); 515 516 return; 517 } 518 519 int 520 kue_detach(device_t self, int flags) 521 { 522 struct kue_softc *sc = device_private(self); 523 struct ifnet *ifp = GET_IFP(sc); 524 int s; 525 526 s = splusb(); /* XXX why? */ 527 528 if (sc->kue_mcfilters != NULL) { 529 free(sc->kue_mcfilters, M_USBDEV); 530 sc->kue_mcfilters = NULL; 531 } 532 533 if (!sc->kue_attached) { 534 /* Detached before attached finished, so just bail out. */ 535 splx(s); 536 return (0); 537 } 538 539 if (ifp->if_flags & IFF_RUNNING) 540 kue_stop(sc); 541 542 rnd_detach_source(&sc->rnd_source); 543 ether_ifdetach(ifp); 544 545 if_detach(ifp); 546 547 #ifdef DIAGNOSTIC 548 if (sc->kue_ep[KUE_ENDPT_TX] != NULL || 549 sc->kue_ep[KUE_ENDPT_RX] != NULL || 550 sc->kue_ep[KUE_ENDPT_INTR] != NULL) 551 aprint_debug_dev(self, "detach has active endpoints\n"); 552 #endif 553 554 sc->kue_attached = false; 555 splx(s); 556 557 return (0); 558 } 559 560 int 561 kue_activate(device_t self, enum devact act) 562 { 563 struct kue_softc *sc = device_private(self); 564 565 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 566 567 switch (act) { 568 case DVACT_DEACTIVATE: 569 /* Deactivate the interface. */ 570 if_deactivate(&sc->kue_ec.ec_if); 571 sc->kue_dying = true; 572 return 0; 573 default: 574 return EOPNOTSUPP; 575 } 576 } 577 578 static int 579 kue_rx_list_init(struct kue_softc *sc) 580 { 581 struct kue_cdata *cd; 582 struct kue_chain *c; 583 int i; 584 585 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 586 587 cd = &sc->kue_cdata; 588 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 589 c = &cd->kue_rx_chain[i]; 590 c->kue_sc = sc; 591 c->kue_idx = i; 592 if (c->kue_xfer == NULL) { 593 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 594 if (c->kue_xfer == NULL) 595 return (ENOBUFS); 596 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 597 if (c->kue_buf == NULL) 598 return (ENOBUFS); /* XXX free xfer */ 599 } 600 } 601 602 return (0); 603 } 604 605 static int 606 kue_tx_list_init(struct kue_softc *sc) 607 { 608 struct kue_cdata *cd; 609 struct kue_chain *c; 610 int i; 611 612 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 613 614 cd = &sc->kue_cdata; 615 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 616 c = &cd->kue_tx_chain[i]; 617 c->kue_sc = sc; 618 c->kue_idx = i; 619 if (c->kue_xfer == NULL) { 620 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 621 if (c->kue_xfer == NULL) 622 return (ENOBUFS); 623 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 624 if (c->kue_buf == NULL) 625 return (ENOBUFS); 626 } 627 } 628 629 return (0); 630 } 631 632 /* 633 * A frame has been uploaded: pass the resulting mbuf chain up to 634 * the higher level protocols. 635 */ 636 static void 637 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 638 { 639 struct kue_chain *c = priv; 640 struct kue_softc *sc = c->kue_sc; 641 struct ifnet *ifp = GET_IFP(sc); 642 struct mbuf *m; 643 int total_len, pktlen; 644 int s; 645 646 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->kue_dev), 647 __func__, status)); 648 649 if (sc->kue_dying) 650 return; 651 652 if (!(ifp->if_flags & IFF_RUNNING)) 653 return; 654 655 if (status != USBD_NORMAL_COMPLETION) { 656 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 657 return; 658 sc->kue_rx_errs++; 659 if (usbd_ratecheck(&sc->kue_rx_notice)) { 660 printf("%s: %u usb errors on rx: %s\n", 661 device_xname(sc->kue_dev), sc->kue_rx_errs, 662 usbd_errstr(status)); 663 sc->kue_rx_errs = 0; 664 } 665 if (status == USBD_STALLED) 666 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_RX]); 667 goto done; 668 } 669 670 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 671 672 DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", device_xname(sc->kue_dev), 673 __func__, total_len, 674 le16dec(c->kue_buf))); 675 676 if (total_len <= 1) 677 goto done; 678 679 pktlen = le16dec(c->kue_buf); 680 if (pktlen > total_len - 2) 681 pktlen = total_len - 2; 682 683 if (pktlen < ETHER_MIN_LEN - ETHER_CRC_LEN || 684 pktlen > MCLBYTES - ETHER_ALIGN) { 685 ifp->if_ierrors++; 686 goto done; 687 } 688 689 /* No errors; receive the packet. */ 690 MGETHDR(m, M_DONTWAIT, MT_DATA); 691 if (m == NULL) { 692 ifp->if_ierrors++; 693 goto done; 694 } 695 if (pktlen > MHLEN - ETHER_ALIGN) { 696 MCLGET(m, M_DONTWAIT); 697 if ((m->m_flags & M_EXT) == 0) { 698 m_freem(m); 699 ifp->if_ierrors++; 700 goto done; 701 } 702 } 703 m->m_data += ETHER_ALIGN; 704 705 /* copy data to mbuf */ 706 memcpy(mtod(m, uint8_t *), c->kue_buf + 2, pktlen); 707 708 ifp->if_ipackets++; 709 m->m_pkthdr.len = m->m_len = pktlen; 710 m->m_pkthdr.rcvif = ifp; 711 712 s = splnet(); 713 714 /* 715 * Handle BPF listeners. Let the BPF user see the packet, but 716 * don't pass it up to the ether_input() layer unless it's 717 * a broadcast packet, multicast packet, matches our ethernet 718 * address or the interface is in promiscuous mode. 719 */ 720 bpf_mtap(ifp, m); 721 722 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->kue_dev), 723 __func__, m->m_len)); 724 (*ifp->if_input)(ifp, m); 725 726 splx(s); 727 728 done: 729 730 /* Setup new transfer. */ 731 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 732 c, c->kue_buf, KUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 733 USBD_NO_TIMEOUT, kue_rxeof); 734 usbd_transfer(c->kue_xfer); 735 736 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->kue_dev), 737 __func__)); 738 } 739 740 /* 741 * A frame was downloaded to the chip. It's safe for us to clean up 742 * the list buffers. 743 */ 744 745 static void 746 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 747 usbd_status status) 748 { 749 struct kue_chain *c = priv; 750 struct kue_softc *sc = c->kue_sc; 751 struct ifnet *ifp = GET_IFP(sc); 752 int s; 753 754 if (sc->kue_dying) 755 return; 756 757 s = splnet(); 758 759 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->kue_dev), 760 __func__, status)); 761 762 ifp->if_timer = 0; 763 ifp->if_flags &= ~IFF_OACTIVE; 764 765 if (status != USBD_NORMAL_COMPLETION) { 766 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 767 splx(s); 768 return; 769 } 770 ifp->if_oerrors++; 771 printf("%s: usb error on tx: %s\n", device_xname(sc->kue_dev), 772 usbd_errstr(status)); 773 if (status == USBD_STALLED) 774 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_TX]); 775 splx(s); 776 return; 777 } 778 779 ifp->if_opackets++; 780 781 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 782 kue_start(ifp); 783 784 splx(s); 785 } 786 787 static int 788 kue_send(struct kue_softc *sc, struct mbuf *m, int idx) 789 { 790 int total_len; 791 struct kue_chain *c; 792 usbd_status err; 793 794 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 795 796 c = &sc->kue_cdata.kue_tx_chain[idx]; 797 798 /* Frame length is specified in the first 2 bytes of the buffer. */ 799 le16enc(c->kue_buf, (uint16_t)m->m_pkthdr.len); 800 801 /* 802 * Copy the mbuf data into a contiguous buffer, leaving two 803 * bytes at the beginning to hold the frame length. 804 */ 805 m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2); 806 807 total_len = 2 + m->m_pkthdr.len; 808 total_len = roundup2(total_len, 64); 809 810 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX], 811 c, c->kue_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 812 kue_txeof); 813 814 /* Transmit */ 815 err = usbd_transfer(c->kue_xfer); 816 if (err != USBD_IN_PROGRESS) { 817 printf("%s: kue_send error=%s\n", device_xname(sc->kue_dev), 818 usbd_errstr(err)); 819 kue_stop(sc); 820 return (EIO); 821 } 822 823 sc->kue_cdata.kue_tx_cnt++; 824 825 return (0); 826 } 827 828 static void 829 kue_start(struct ifnet *ifp) 830 { 831 struct kue_softc *sc = ifp->if_softc; 832 struct mbuf *m; 833 834 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 835 836 if (sc->kue_dying) 837 return; 838 839 if (ifp->if_flags & IFF_OACTIVE) 840 return; 841 842 IFQ_POLL(&ifp->if_snd, m); 843 if (m == NULL) 844 return; 845 846 if (kue_send(sc, m, 0)) { 847 ifp->if_flags |= IFF_OACTIVE; 848 return; 849 } 850 851 IFQ_DEQUEUE(&ifp->if_snd, m); 852 853 /* 854 * If there's a BPF listener, bounce a copy of this frame 855 * to him. 856 */ 857 bpf_mtap(ifp, m); 858 m_freem(m); 859 860 ifp->if_flags |= IFF_OACTIVE; 861 862 /* 863 * Set a timeout in case the chip goes out to lunch. 864 */ 865 ifp->if_timer = 6; 866 } 867 868 static void 869 kue_init(void *xsc) 870 { 871 struct kue_softc *sc = xsc; 872 struct ifnet *ifp = GET_IFP(sc); 873 int s; 874 uint8_t eaddr[ETHER_ADDR_LEN]; 875 876 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 877 878 if (ifp->if_flags & IFF_RUNNING) 879 return; 880 881 s = splnet(); 882 883 memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr)); 884 /* Set MAC address */ 885 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN); 886 887 sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST; 888 889 /* If we want promiscuous mode, set the allframes bit. */ 890 if (ifp->if_flags & IFF_PROMISC) 891 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 892 893 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 894 895 /* I'm not sure how to tune these. */ 896 #if 0 897 /* 898 * Leave this one alone for now; setting it 899 * wrong causes lockups on some machines/controllers. 900 */ 901 kue_setword(sc, KUE_CMD_SET_SOFS, 1); 902 #endif 903 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64); 904 905 /* Init TX ring. */ 906 if (kue_tx_list_init(sc) == ENOBUFS) { 907 printf("%s: tx list init failed\n", device_xname(sc->kue_dev)); 908 splx(s); 909 return; 910 } 911 912 /* Init RX ring. */ 913 if (kue_rx_list_init(sc) == ENOBUFS) { 914 printf("%s: rx list init failed\n", device_xname(sc->kue_dev)); 915 splx(s); 916 return; 917 } 918 919 /* Load the multicast filter. */ 920 kue_setmulti(sc); 921 922 if (sc->kue_ep[KUE_ENDPT_RX] == NULL) { 923 if (kue_open_pipes(sc)) { 924 splx(s); 925 return; 926 } 927 } 928 929 ifp->if_flags |= IFF_RUNNING; 930 ifp->if_flags &= ~IFF_OACTIVE; 931 932 splx(s); 933 } 934 935 static int 936 kue_open_pipes(struct kue_softc *sc) 937 { 938 usbd_status err; 939 struct kue_chain *c; 940 int i; 941 942 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 943 944 /* Open RX and TX pipes. */ 945 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX], 946 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]); 947 if (err) { 948 printf("%s: open rx pipe failed: %s\n", 949 device_xname(sc->kue_dev), usbd_errstr(err)); 950 return (EIO); 951 } 952 953 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX], 954 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]); 955 if (err) { 956 printf("%s: open tx pipe failed: %s\n", 957 device_xname(sc->kue_dev), usbd_errstr(err)); 958 return (EIO); 959 } 960 961 /* Start up the receive pipe. */ 962 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 963 c = &sc->kue_cdata.kue_rx_chain[i]; 964 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 965 c, c->kue_buf, KUE_BUFSZ, 966 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 967 kue_rxeof); 968 DPRINTFN(5,("%s: %s: start read\n", device_xname(sc->kue_dev), 969 __func__)); 970 usbd_transfer(c->kue_xfer); 971 } 972 973 return (0); 974 } 975 976 static int 977 kue_ioctl(struct ifnet *ifp, u_long command, void *data) 978 { 979 struct kue_softc *sc = ifp->if_softc; 980 struct ifaddr *ifa = (struct ifaddr *)data; 981 struct ifreq *ifr = (struct ifreq *)data; 982 int s, error = 0; 983 984 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 985 986 if (sc->kue_dying) 987 return (EIO); 988 989 s = splnet(); 990 991 switch(command) { 992 case SIOCINITIFADDR: 993 ifp->if_flags |= IFF_UP; 994 kue_init(sc); 995 996 switch (ifa->ifa_addr->sa_family) { 997 #ifdef INET 998 case AF_INET: 999 arp_ifinit(ifp, ifa); 1000 break; 1001 #endif /* INET */ 1002 } 1003 break; 1004 1005 case SIOCSIFMTU: 1006 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1007 error = EINVAL; 1008 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1009 error = 0; 1010 break; 1011 1012 case SIOCSIFFLAGS: 1013 if ((error = ifioctl_common(ifp, command, data)) != 0) 1014 break; 1015 if (ifp->if_flags & IFF_UP) { 1016 if (ifp->if_flags & IFF_RUNNING && 1017 ifp->if_flags & IFF_PROMISC && 1018 !(sc->kue_if_flags & IFF_PROMISC)) { 1019 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 1020 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1021 sc->kue_rxfilt); 1022 } else if (ifp->if_flags & IFF_RUNNING && 1023 !(ifp->if_flags & IFF_PROMISC) && 1024 sc->kue_if_flags & IFF_PROMISC) { 1025 sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC; 1026 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1027 sc->kue_rxfilt); 1028 } else if (!(ifp->if_flags & IFF_RUNNING)) 1029 kue_init(sc); 1030 } else { 1031 if (ifp->if_flags & IFF_RUNNING) 1032 kue_stop(sc); 1033 } 1034 sc->kue_if_flags = ifp->if_flags; 1035 error = 0; 1036 break; 1037 case SIOCADDMULTI: 1038 case SIOCDELMULTI: 1039 kue_setmulti(sc); 1040 error = 0; 1041 break; 1042 default: 1043 error = ether_ioctl(ifp, command, data); 1044 break; 1045 } 1046 1047 splx(s); 1048 1049 return (error); 1050 } 1051 1052 static void 1053 kue_watchdog(struct ifnet *ifp) 1054 { 1055 struct kue_softc *sc = ifp->if_softc; 1056 struct kue_chain *c; 1057 usbd_status stat; 1058 int s; 1059 1060 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 1061 1062 if (sc->kue_dying) 1063 return; 1064 1065 ifp->if_oerrors++; 1066 printf("%s: watchdog timeout\n", device_xname(sc->kue_dev)); 1067 1068 s = splusb(); 1069 c = &sc->kue_cdata.kue_tx_chain[0]; 1070 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat); 1071 kue_txeof(c->kue_xfer, c, stat); 1072 1073 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1074 kue_start(ifp); 1075 splx(s); 1076 } 1077 1078 /* 1079 * Stop the adapter and free any mbufs allocated to the 1080 * RX and TX lists. 1081 */ 1082 static void 1083 kue_stop(struct kue_softc *sc) 1084 { 1085 usbd_status err; 1086 struct ifnet *ifp; 1087 int i; 1088 1089 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 1090 1091 ifp = GET_IFP(sc); 1092 ifp->if_timer = 0; 1093 1094 /* Stop transfers. */ 1095 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) { 1096 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1097 if (err) { 1098 printf("%s: abort rx pipe failed: %s\n", 1099 device_xname(sc->kue_dev), usbd_errstr(err)); 1100 } 1101 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1102 if (err) { 1103 printf("%s: close rx pipe failed: %s\n", 1104 device_xname(sc->kue_dev), usbd_errstr(err)); 1105 } 1106 sc->kue_ep[KUE_ENDPT_RX] = NULL; 1107 } 1108 1109 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) { 1110 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1111 if (err) { 1112 printf("%s: abort tx pipe failed: %s\n", 1113 device_xname(sc->kue_dev), usbd_errstr(err)); 1114 } 1115 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1116 if (err) { 1117 printf("%s: close tx pipe failed: %s\n", 1118 device_xname(sc->kue_dev), usbd_errstr(err)); 1119 } 1120 sc->kue_ep[KUE_ENDPT_TX] = NULL; 1121 } 1122 1123 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) { 1124 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1125 if (err) { 1126 printf("%s: abort intr pipe failed: %s\n", 1127 device_xname(sc->kue_dev), usbd_errstr(err)); 1128 } 1129 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1130 if (err) { 1131 printf("%s: close intr pipe failed: %s\n", 1132 device_xname(sc->kue_dev), usbd_errstr(err)); 1133 } 1134 sc->kue_ep[KUE_ENDPT_INTR] = NULL; 1135 } 1136 1137 /* Free RX resources. */ 1138 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1139 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) { 1140 usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer); 1141 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL; 1142 } 1143 } 1144 1145 /* Free TX resources. */ 1146 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 1147 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) { 1148 usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer); 1149 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL; 1150 } 1151 } 1152 1153 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1154 } 1155
Indexes created Thu Oct 02 14:10:14 GMT 2025