if_kue.c revision 1.77
1 /* $NetBSD: if_kue.c,v 1.77 2012/03/11 01:06:06 mrg Exp $ */ 2 3 /* 4 * Copyright (c) 1997, 1998, 1999, 2000 5 * Bill Paul <wpaul (at) ee.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 * $FreeBSD: src/sys/dev/usb/if_kue.c,v 1.14 2000/01/14 01:36:15 wpaul Exp $ 35 */ 36 37 /* 38 * Kawasaki LSI KL5KUSB101B USB to ethernet adapter driver. 39 * 40 * Written by Bill Paul <wpaul (at) ee.columbia.edu> 41 * Electrical Engineering Department 42 * Columbia University, New York City 43 */ 44 45 /* 46 * The KLSI USB to ethernet adapter chip contains an USB serial interface, 47 * ethernet MAC and embedded microcontroller (called the QT Engine). 48 * The chip must have firmware loaded into it before it will operate. 49 * Packets are passed between the chip and host via bulk transfers. 50 * There is an interrupt endpoint mentioned in the software spec, however 51 * it's currently unused. This device is 10Mbps half-duplex only, hence 52 * there is no media selection logic. The MAC supports a 128 entry 53 * multicast filter, though the exact size of the filter can depend 54 * on the firmware. Curiously, while the software spec describes various 55 * ethernet statistics counters, my sample adapter and firmware combination 56 * claims not to support any statistics counters at all. 57 * 58 * Note that once we load the firmware in the device, we have to be 59 * careful not to load it again: if you restart your computer but 60 * leave the adapter attached to the USB controller, it may remain 61 * powered on and retain its firmware. In this case, we don't need 62 * to load the firmware a second time. 63 * 64 * Special thanks to Rob Furr for providing an ADS Technologies 65 * adapter for development and testing. No monkeys were harmed during 66 * the development of this driver. 67 */ 68 69 /* 70 * Ported to NetBSD and somewhat rewritten by Lennart Augustsson. 71 */ 72 73 #include <sys/cdefs.h> 74 __KERNEL_RCSID(0, "$NetBSD: if_kue.c,v 1.77 2012/03/11 01:06:06 mrg Exp $"); 75 76 #include "opt_inet.h" 77 78 #include <sys/param.h> 79 #include <sys/systm.h> 80 #include <sys/sockio.h> 81 #include <sys/mbuf.h> 82 #include <sys/malloc.h> 83 #include <sys/kernel.h> 84 #include <sys/socket.h> 85 #include <sys/device.h> 86 #include <sys/proc.h> 87 #include <sys/rnd.h> 88 89 #include <net/if.h> 90 #include <net/if_arp.h> 91 #include <net/if_dl.h> 92 #include <net/bpf.h> 93 #include <net/if_ether.h> 94 95 #ifdef INET 96 #include <netinet/in.h> 97 #include <netinet/if_inarp.h> 98 #endif 99 100 #include <dev/usb/usb.h> 101 #include <dev/usb/usbdi.h> 102 #include <dev/usb/usbdi_util.h> 103 #include <dev/usb/usbdivar.h> 104 #include <dev/usb/usbdevs.h> 105 106 #include <dev/usb/if_kuereg.h> 107 #include <dev/usb/kue_fw.h> 108 109 #ifdef KUE_DEBUG 110 #define DPRINTF(x) if (kuedebug) printf x 111 #define DPRINTFN(n,x) if (kuedebug >= (n)) printf x 112 int kuedebug = 0; 113 #else 114 #define DPRINTF(x) 115 #define DPRINTFN(n,x) 116 #endif 117 118 /* 119 * Various supported device vendors/products. 120 */ 121 static const struct usb_devno kue_devs[] = { 122 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 }, 123 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 }, 124 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 }, 125 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT }, 126 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BTX }, 127 { USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 }, 128 { USB_VENDOR_ASANTE, USB_PRODUCT_ASANTE_EA }, 129 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T }, 130 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_DSB650C }, 131 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T }, 132 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C }, 133 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 }, 134 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX1 }, 135 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX2 }, 136 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT }, 137 { USB_VENDOR_JATON, USB_PRODUCT_JATON_EDA }, 138 { USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_XX1 }, 139 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT }, 140 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN }, 141 { USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T }, 142 { USB_VENDOR_MOBILITY, USB_PRODUCT_MOBILITY_EA }, 143 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 }, 144 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101X }, 145 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET }, 146 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 }, 147 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 }, 148 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA8 }, 149 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA9 }, 150 { USB_VENDOR_PORTSMITH, USB_PRODUCT_PORTSMITH_EEA }, 151 { USB_VENDOR_SHARK, USB_PRODUCT_SHARK_PA }, 152 { USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_U2E }, 153 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB }, 154 }; 155 #define kue_lookup(v, p) (usb_lookup(kue_devs, v, p)) 156 157 int kue_match(device_t, cfdata_t, void *); 158 void kue_attach(device_t, device_t, void *); 159 int kue_detach(device_t, int); 160 int kue_activate(device_t, enum devact); 161 extern struct cfdriver kue_cd; 162 CFATTACH_DECL_NEW(kue, sizeof(struct kue_softc), kue_match, kue_attach, 163 kue_detach, kue_activate); 164 165 static int kue_tx_list_init(struct kue_softc *); 166 static int kue_rx_list_init(struct kue_softc *); 167 static int kue_send(struct kue_softc *, struct mbuf *, int); 168 static int kue_open_pipes(struct kue_softc *); 169 static void kue_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 170 static void kue_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); 171 static void kue_start(struct ifnet *); 172 static int kue_ioctl(struct ifnet *, u_long, void *); 173 static void kue_init(void *); 174 static void kue_stop(struct kue_softc *); 175 static void kue_watchdog(struct ifnet *); 176 177 static void kue_setmulti(struct kue_softc *); 178 static void kue_reset(struct kue_softc *); 179 180 static usbd_status kue_ctl(struct kue_softc *, int, uint8_t, 181 uint16_t, void *, uint32_t); 182 static usbd_status kue_setword(struct kue_softc *, uint8_t, uint16_t); 183 static int kue_load_fw(struct kue_softc *); 184 185 static usbd_status 186 kue_setword(struct kue_softc *sc, uint8_t breq, uint16_t word) 187 { 188 usb_device_request_t req; 189 190 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 191 192 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 193 req.bRequest = breq; 194 USETW(req.wValue, word); 195 USETW(req.wIndex, 0); 196 USETW(req.wLength, 0); 197 198 return (usbd_do_request(sc->kue_udev, &req, NULL)); 199 } 200 201 static usbd_status 202 kue_ctl(struct kue_softc *sc, int rw, uint8_t breq, uint16_t val, 203 void *data, uint32_t len) 204 { 205 usb_device_request_t req; 206 207 DPRINTFN(10,("%s: %s: enter, len=%d\n", device_xname(sc->kue_dev), 208 __func__, len)); 209 210 if (rw == KUE_CTL_WRITE) 211 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 212 else 213 req.bmRequestType = UT_READ_VENDOR_DEVICE; 214 215 req.bRequest = breq; 216 USETW(req.wValue, val); 217 USETW(req.wIndex, 0); 218 USETW(req.wLength, len); 219 220 return (usbd_do_request(sc->kue_udev, &req, data)); 221 } 222 223 static int 224 kue_load_fw(struct kue_softc *sc) 225 { 226 usb_device_descriptor_t dd; 227 usbd_status err; 228 229 DPRINTFN(1,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 230 231 /* 232 * First, check if we even need to load the firmware. 233 * If the device was still attached when the system was 234 * rebooted, it may already have firmware loaded in it. 235 * If this is the case, we don't need to do it again. 236 * And in fact, if we try to load it again, we'll hang, 237 * so we have to avoid this condition if we don't want 238 * to look stupid. 239 * 240 * We can test this quickly by checking the bcdRevision 241 * code. The NIC will return a different revision code if 242 * it's probed while the firmware is still loaded and 243 * running. 244 */ 245 if (usbd_get_device_desc(sc->kue_udev, &dd)) 246 return (EIO); 247 if (UGETW(dd.bcdDevice) == KUE_WARM_REV) { 248 printf("%s: warm boot, no firmware download\n", 249 device_xname(sc->kue_dev)); 250 return (0); 251 } 252 253 printf("%s: cold boot, downloading firmware\n", 254 device_xname(sc->kue_dev)); 255 256 /* Load code segment */ 257 DPRINTFN(1,("%s: kue_load_fw: download code_seg\n", 258 device_xname(sc->kue_dev))); 259 /*XXXUNCONST*/ 260 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 261 0, __UNCONST(kue_code_seg), sizeof(kue_code_seg)); 262 if (err) { 263 printf("%s: failed to load code segment: %s\n", 264 device_xname(sc->kue_dev), usbd_errstr(err)); 265 return (EIO); 266 } 267 268 /* Load fixup segment */ 269 DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n", 270 device_xname(sc->kue_dev))); 271 /*XXXUNCONST*/ 272 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 273 0, __UNCONST(kue_fix_seg), sizeof(kue_fix_seg)); 274 if (err) { 275 printf("%s: failed to load fixup segment: %s\n", 276 device_xname(sc->kue_dev), usbd_errstr(err)); 277 return (EIO); 278 } 279 280 /* Send trigger command. */ 281 DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n", 282 device_xname(sc->kue_dev))); 283 /*XXXUNCONST*/ 284 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 285 0, __UNCONST(kue_trig_seg), sizeof(kue_trig_seg)); 286 if (err) { 287 printf("%s: failed to load trigger segment: %s\n", 288 device_xname(sc->kue_dev), usbd_errstr(err)); 289 return (EIO); 290 } 291 292 usbd_delay_ms(sc->kue_udev, 10); 293 294 /* 295 * Reload device descriptor. 296 * Why? The chip without the firmware loaded returns 297 * one revision code. The chip with the firmware 298 * loaded and running returns a *different* revision 299 * code. This confuses the quirk mechanism, which is 300 * dependent on the revision data. 301 */ 302 (void)usbd_reload_device_desc(sc->kue_udev); 303 304 DPRINTFN(1,("%s: %s: done\n", device_xname(sc->kue_dev), __func__)); 305 306 /* Reset the adapter. */ 307 kue_reset(sc); 308 309 return (0); 310 } 311 312 static void 313 kue_setmulti(struct kue_softc *sc) 314 { 315 struct ifnet *ifp = GET_IFP(sc); 316 struct ether_multi *enm; 317 struct ether_multistep step; 318 int i; 319 320 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 321 322 if (ifp->if_flags & IFF_PROMISC) { 323 allmulti: 324 ifp->if_flags |= IFF_ALLMULTI; 325 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI; 326 sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST; 327 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 328 return; 329 } 330 331 sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI; 332 333 i = 0; 334 ETHER_FIRST_MULTI(step, &sc->kue_ec, enm); 335 while (enm != NULL) { 336 if (i == KUE_MCFILTCNT(sc) || 337 memcmp(enm->enm_addrlo, enm->enm_addrhi, 338 ETHER_ADDR_LEN) != 0) 339 goto allmulti; 340 341 memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN); 342 ETHER_NEXT_MULTI(step, enm); 343 i++; 344 } 345 346 ifp->if_flags &= ~IFF_ALLMULTI; 347 348 sc->kue_rxfilt |= KUE_RXFILT_MULTICAST; 349 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS, 350 i, sc->kue_mcfilters, i * ETHER_ADDR_LEN); 351 352 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 353 } 354 355 /* 356 * Issue a SET_CONFIGURATION command to reset the MAC. This should be 357 * done after the firmware is loaded into the adapter in order to 358 * bring it into proper operation. 359 */ 360 static void 361 kue_reset(struct kue_softc *sc) 362 { 363 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 364 365 if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 1) || 366 usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX, 367 &sc->kue_iface)) 368 printf("%s: reset failed\n", device_xname(sc->kue_dev)); 369 370 /* Wait a little while for the chip to get its brains in order. */ 371 usbd_delay_ms(sc->kue_udev, 10); 372 } 373 374 /* 375 * Probe for a KLSI chip. 376 */ 377 int 378 kue_match(device_t parent, cfdata_t match, void *aux) 379 { 380 struct usb_attach_arg *uaa = aux; 381 382 DPRINTFN(25,("kue_match: enter\n")); 383 384 return (kue_lookup(uaa->vendor, uaa->product) != NULL ? 385 UMATCH_VENDOR_PRODUCT : UMATCH_NONE); 386 } 387 388 /* 389 * Attach the interface. Allocate softc structures, do 390 * setup and ethernet/BPF attach. 391 */ 392 void 393 kue_attach(device_t parent, device_t self, void *aux) 394 { 395 struct kue_softc *sc = device_private(self); 396 struct usb_attach_arg *uaa = aux; 397 char *devinfop; 398 int s; 399 struct ifnet *ifp; 400 usbd_device_handle dev = uaa->device; 401 usbd_interface_handle iface; 402 usbd_status err; 403 usb_interface_descriptor_t *id; 404 usb_endpoint_descriptor_t *ed; 405 int i; 406 407 DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev)); 408 409 sc->kue_dev = self; 410 411 aprint_naive("\n"); 412 aprint_normal("\n"); 413 414 devinfop = usbd_devinfo_alloc(dev, 0); 415 aprint_normal_dev(self, "%s\n", devinfop); 416 usbd_devinfo_free(devinfop); 417 418 err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1); 419 if (err) { 420 aprint_error_dev(self, " setting config no failed\n"); 421 return; 422 } 423 424 sc->kue_udev = dev; 425 sc->kue_product = uaa->product; 426 sc->kue_vendor = uaa->vendor; 427 428 /* Load the firmware into the NIC. */ 429 if (kue_load_fw(sc)) { 430 aprint_error_dev(self, "loading firmware failed\n"); 431 return; 432 } 433 434 err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface); 435 if (err) { 436 aprint_error_dev(self, "getting interface handle failed\n"); 437 return; 438 } 439 440 sc->kue_iface = iface; 441 id = usbd_get_interface_descriptor(iface); 442 443 /* Find endpoints. */ 444 for (i = 0; i < id->bNumEndpoints; i++) { 445 ed = usbd_interface2endpoint_descriptor(iface, i); 446 if (ed == NULL) { 447 aprint_error_dev(self, "couldn't get ep %d\n", i); 448 return; 449 } 450 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 451 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 452 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress; 453 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 454 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 455 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress; 456 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 457 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 458 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress; 459 } 460 } 461 462 if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) { 463 aprint_error_dev(self, "missing endpoint\n"); 464 return; 465 } 466 467 /* Read ethernet descriptor */ 468 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR, 469 0, &sc->kue_desc, sizeof(sc->kue_desc)); 470 if (err) { 471 aprint_error_dev(self, "could not read Ethernet descriptor\n"); 472 return; 473 } 474 475 sc->kue_mcfilters = malloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN, 476 M_USBDEV, M_NOWAIT); 477 if (sc->kue_mcfilters == NULL) { 478 aprint_error_dev(self, 479 "no memory for multicast filter buffer\n"); 480 return; 481 } 482 483 s = splnet(); 484 485 /* 486 * A KLSI chip was detected. Inform the world. 487 */ 488 aprint_normal_dev(self, "Ethernet address %s\n", 489 ether_sprintf(sc->kue_desc.kue_macaddr)); 490 491 /* Initialize interface info.*/ 492 ifp = GET_IFP(sc); 493 ifp->if_softc = sc; 494 ifp->if_mtu = ETHERMTU; 495 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 496 ifp->if_ioctl = kue_ioctl; 497 ifp->if_start = kue_start; 498 ifp->if_watchdog = kue_watchdog; 499 strncpy(ifp->if_xname, device_xname(sc->kue_dev), IFNAMSIZ); 500 501 IFQ_SET_READY(&ifp->if_snd); 502 503 /* Attach the interface. */ 504 if_attach(ifp); 505 ether_ifattach(ifp, sc->kue_desc.kue_macaddr); 506 rnd_attach_source(&sc->rnd_source, device_xname(sc->kue_dev), 507 RND_TYPE_NET, 0); 508 509 sc->kue_attached = true; 510 splx(s); 511 512 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev, 513 sc->kue_dev); 514 515 return; 516 } 517 518 int 519 kue_detach(device_t self, int flags) 520 { 521 struct kue_softc *sc = device_private(self); 522 struct ifnet *ifp = GET_IFP(sc); 523 int s; 524 525 s = splusb(); /* XXX why? */ 526 527 if (sc->kue_mcfilters != NULL) { 528 free(sc->kue_mcfilters, M_USBDEV); 529 sc->kue_mcfilters = NULL; 530 } 531 532 if (!sc->kue_attached) { 533 /* Detached before attached finished, so just bail out. */ 534 splx(s); 535 return (0); 536 } 537 538 if (ifp->if_flags & IFF_RUNNING) 539 kue_stop(sc); 540 541 rnd_detach_source(&sc->rnd_source); 542 ether_ifdetach(ifp); 543 544 if_detach(ifp); 545 546 #ifdef DIAGNOSTIC 547 if (sc->kue_ep[KUE_ENDPT_TX] != NULL || 548 sc->kue_ep[KUE_ENDPT_RX] != NULL || 549 sc->kue_ep[KUE_ENDPT_INTR] != NULL) 550 aprint_debug_dev(self, "detach has active endpoints\n"); 551 #endif 552 553 sc->kue_attached = false; 554 splx(s); 555 556 return (0); 557 } 558 559 int 560 kue_activate(device_t self, enum devact act) 561 { 562 struct kue_softc *sc = device_private(self); 563 564 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 565 566 switch (act) { 567 case DVACT_DEACTIVATE: 568 /* Deactivate the interface. */ 569 if_deactivate(&sc->kue_ec.ec_if); 570 sc->kue_dying = true; 571 return 0; 572 default: 573 return EOPNOTSUPP; 574 } 575 } 576 577 static int 578 kue_rx_list_init(struct kue_softc *sc) 579 { 580 struct kue_cdata *cd; 581 struct kue_chain *c; 582 int i; 583 584 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 585 586 cd = &sc->kue_cdata; 587 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 588 c = &cd->kue_rx_chain[i]; 589 c->kue_sc = sc; 590 c->kue_idx = i; 591 if (c->kue_xfer == NULL) { 592 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 593 if (c->kue_xfer == NULL) 594 return (ENOBUFS); 595 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 596 if (c->kue_buf == NULL) 597 return (ENOBUFS); /* XXX free xfer */ 598 } 599 } 600 601 return (0); 602 } 603 604 static int 605 kue_tx_list_init(struct kue_softc *sc) 606 { 607 struct kue_cdata *cd; 608 struct kue_chain *c; 609 int i; 610 611 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 612 613 cd = &sc->kue_cdata; 614 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 615 c = &cd->kue_tx_chain[i]; 616 c->kue_sc = sc; 617 c->kue_idx = i; 618 if (c->kue_xfer == NULL) { 619 c->kue_xfer = usbd_alloc_xfer(sc->kue_udev); 620 if (c->kue_xfer == NULL) 621 return (ENOBUFS); 622 c->kue_buf = usbd_alloc_buffer(c->kue_xfer, KUE_BUFSZ); 623 if (c->kue_buf == NULL) 624 return (ENOBUFS); 625 } 626 } 627 628 return (0); 629 } 630 631 /* 632 * A frame has been uploaded: pass the resulting mbuf chain up to 633 * the higher level protocols. 634 */ 635 static void 636 kue_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) 637 { 638 struct kue_chain *c = priv; 639 struct kue_softc *sc = c->kue_sc; 640 struct ifnet *ifp = GET_IFP(sc); 641 struct mbuf *m; 642 int total_len, pktlen; 643 int s; 644 645 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->kue_dev), 646 __func__, status)); 647 648 if (sc->kue_dying) 649 return; 650 651 if (!(ifp->if_flags & IFF_RUNNING)) 652 return; 653 654 if (status != USBD_NORMAL_COMPLETION) { 655 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 656 return; 657 sc->kue_rx_errs++; 658 if (usbd_ratecheck(&sc->kue_rx_notice)) { 659 printf("%s: %u usb errors on rx: %s\n", 660 device_xname(sc->kue_dev), sc->kue_rx_errs, 661 usbd_errstr(status)); 662 sc->kue_rx_errs = 0; 663 } 664 if (status == USBD_STALLED) 665 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_RX]); 666 goto done; 667 } 668 669 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 670 671 DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", device_xname(sc->kue_dev), 672 __func__, total_len, 673 le16dec(c->kue_buf))); 674 675 if (total_len <= 1) 676 goto done; 677 678 pktlen = le16dec(c->kue_buf); 679 if (pktlen > total_len - 2) 680 pktlen = total_len - 2; 681 682 if (pktlen < ETHER_MIN_LEN - ETHER_CRC_LEN || 683 pktlen > MCLBYTES - ETHER_ALIGN) { 684 ifp->if_ierrors++; 685 goto done; 686 } 687 688 /* No errors; receive the packet. */ 689 MGETHDR(m, M_DONTWAIT, MT_DATA); 690 if (m == NULL) { 691 ifp->if_ierrors++; 692 goto done; 693 } 694 if (pktlen > MHLEN - ETHER_ALIGN) { 695 MCLGET(m, M_DONTWAIT); 696 if ((m->m_flags & M_EXT) == 0) { 697 m_freem(m); 698 ifp->if_ierrors++; 699 goto done; 700 } 701 } 702 m->m_data += ETHER_ALIGN; 703 704 /* copy data to mbuf */ 705 memcpy(mtod(m, uint8_t *), c->kue_buf + 2, pktlen); 706 707 ifp->if_ipackets++; 708 m->m_pkthdr.len = m->m_len = pktlen; 709 m->m_pkthdr.rcvif = ifp; 710 711 s = splnet(); 712 713 /* 714 * Handle BPF listeners. Let the BPF user see the packet, but 715 * don't pass it up to the ether_input() layer unless it's 716 * a broadcast packet, multicast packet, matches our ethernet 717 * address or the interface is in promiscuous mode. 718 */ 719 bpf_mtap(ifp, m); 720 721 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->kue_dev), 722 __func__, m->m_len)); 723 (*ifp->if_input)(ifp, m); 724 725 splx(s); 726 727 done: 728 729 /* Setup new transfer. */ 730 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 731 c, c->kue_buf, KUE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, 732 USBD_NO_TIMEOUT, kue_rxeof); 733 usbd_transfer(c->kue_xfer); 734 735 DPRINTFN(10,("%s: %s: start rx\n", device_xname(sc->kue_dev), 736 __func__)); 737 } 738 739 /* 740 * A frame was downloaded to the chip. It's safe for us to clean up 741 * the list buffers. 742 */ 743 744 static void 745 kue_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, 746 usbd_status status) 747 { 748 struct kue_chain *c = priv; 749 struct kue_softc *sc = c->kue_sc; 750 struct ifnet *ifp = GET_IFP(sc); 751 int s; 752 753 if (sc->kue_dying) 754 return; 755 756 s = splnet(); 757 758 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->kue_dev), 759 __func__, status)); 760 761 ifp->if_timer = 0; 762 ifp->if_flags &= ~IFF_OACTIVE; 763 764 if (status != USBD_NORMAL_COMPLETION) { 765 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { 766 splx(s); 767 return; 768 } 769 ifp->if_oerrors++; 770 printf("%s: usb error on tx: %s\n", device_xname(sc->kue_dev), 771 usbd_errstr(status)); 772 if (status == USBD_STALLED) 773 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_TX]); 774 splx(s); 775 return; 776 } 777 778 ifp->if_opackets++; 779 780 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 781 kue_start(ifp); 782 783 splx(s); 784 } 785 786 static int 787 kue_send(struct kue_softc *sc, struct mbuf *m, int idx) 788 { 789 int total_len; 790 struct kue_chain *c; 791 usbd_status err; 792 793 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 794 795 c = &sc->kue_cdata.kue_tx_chain[idx]; 796 797 /* Frame length is specified in the first 2 bytes of the buffer. */ 798 le16enc(c->kue_buf, (uint16_t)m->m_pkthdr.len); 799 800 /* 801 * Copy the mbuf data into a contiguous buffer, leaving two 802 * bytes at the beginning to hold the frame length. 803 */ 804 m_copydata(m, 0, m->m_pkthdr.len, c->kue_buf + 2); 805 806 total_len = 2 + m->m_pkthdr.len; 807 total_len = roundup2(total_len, 64); 808 809 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_TX], 810 c, c->kue_buf, total_len, USBD_NO_COPY, USBD_DEFAULT_TIMEOUT, 811 kue_txeof); 812 813 /* Transmit */ 814 err = usbd_transfer(c->kue_xfer); 815 if (err != USBD_IN_PROGRESS) { 816 printf("%s: kue_send error=%s\n", device_xname(sc->kue_dev), 817 usbd_errstr(err)); 818 kue_stop(sc); 819 return (EIO); 820 } 821 822 sc->kue_cdata.kue_tx_cnt++; 823 824 return (0); 825 } 826 827 static void 828 kue_start(struct ifnet *ifp) 829 { 830 struct kue_softc *sc = ifp->if_softc; 831 struct mbuf *m; 832 833 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 834 835 if (sc->kue_dying) 836 return; 837 838 if (ifp->if_flags & IFF_OACTIVE) 839 return; 840 841 IFQ_POLL(&ifp->if_snd, m); 842 if (m == NULL) 843 return; 844 845 if (kue_send(sc, m, 0)) { 846 ifp->if_flags |= IFF_OACTIVE; 847 return; 848 } 849 850 IFQ_DEQUEUE(&ifp->if_snd, m); 851 852 /* 853 * If there's a BPF listener, bounce a copy of this frame 854 * to him. 855 */ 856 bpf_mtap(ifp, m); 857 m_freem(m); 858 859 ifp->if_flags |= IFF_OACTIVE; 860 861 /* 862 * Set a timeout in case the chip goes out to lunch. 863 */ 864 ifp->if_timer = 6; 865 } 866 867 static void 868 kue_init(void *xsc) 869 { 870 struct kue_softc *sc = xsc; 871 struct ifnet *ifp = GET_IFP(sc); 872 int s; 873 uint8_t eaddr[ETHER_ADDR_LEN]; 874 875 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 876 877 if (ifp->if_flags & IFF_RUNNING) 878 return; 879 880 s = splnet(); 881 882 memcpy(eaddr, CLLADDR(ifp->if_sadl), sizeof(eaddr)); 883 /* Set MAC address */ 884 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MAC, 0, eaddr, ETHER_ADDR_LEN); 885 886 sc->kue_rxfilt = KUE_RXFILT_UNICAST | KUE_RXFILT_BROADCAST; 887 888 /* If we want promiscuous mode, set the allframes bit. */ 889 if (ifp->if_flags & IFF_PROMISC) 890 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 891 892 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 893 894 /* I'm not sure how to tune these. */ 895 #if 0 896 /* 897 * Leave this one alone for now; setting it 898 * wrong causes lockups on some machines/controllers. 899 */ 900 kue_setword(sc, KUE_CMD_SET_SOFS, 1); 901 #endif 902 kue_setword(sc, KUE_CMD_SET_URB_SIZE, 64); 903 904 /* Init TX ring. */ 905 if (kue_tx_list_init(sc) == ENOBUFS) { 906 printf("%s: tx list init failed\n", device_xname(sc->kue_dev)); 907 splx(s); 908 return; 909 } 910 911 /* Init RX ring. */ 912 if (kue_rx_list_init(sc) == ENOBUFS) { 913 printf("%s: rx list init failed\n", device_xname(sc->kue_dev)); 914 splx(s); 915 return; 916 } 917 918 /* Load the multicast filter. */ 919 kue_setmulti(sc); 920 921 if (sc->kue_ep[KUE_ENDPT_RX] == NULL) { 922 if (kue_open_pipes(sc)) { 923 splx(s); 924 return; 925 } 926 } 927 928 ifp->if_flags |= IFF_RUNNING; 929 ifp->if_flags &= ~IFF_OACTIVE; 930 931 splx(s); 932 } 933 934 static int 935 kue_open_pipes(struct kue_softc *sc) 936 { 937 usbd_status err; 938 struct kue_chain *c; 939 int i; 940 941 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 942 943 /* Open RX and TX pipes. */ 944 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX], 945 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]); 946 if (err) { 947 printf("%s: open rx pipe failed: %s\n", 948 device_xname(sc->kue_dev), usbd_errstr(err)); 949 return (EIO); 950 } 951 952 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX], 953 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]); 954 if (err) { 955 printf("%s: open tx pipe failed: %s\n", 956 device_xname(sc->kue_dev), usbd_errstr(err)); 957 return (EIO); 958 } 959 960 /* Start up the receive pipe. */ 961 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 962 c = &sc->kue_cdata.kue_rx_chain[i]; 963 usbd_setup_xfer(c->kue_xfer, sc->kue_ep[KUE_ENDPT_RX], 964 c, c->kue_buf, KUE_BUFSZ, 965 USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, 966 kue_rxeof); 967 DPRINTFN(5,("%s: %s: start read\n", device_xname(sc->kue_dev), 968 __func__)); 969 usbd_transfer(c->kue_xfer); 970 } 971 972 return (0); 973 } 974 975 static int 976 kue_ioctl(struct ifnet *ifp, u_long command, void *data) 977 { 978 struct kue_softc *sc = ifp->if_softc; 979 struct ifaddr *ifa = (struct ifaddr *)data; 980 struct ifreq *ifr = (struct ifreq *)data; 981 int s, error = 0; 982 983 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 984 985 if (sc->kue_dying) 986 return (EIO); 987 988 s = splnet(); 989 990 switch(command) { 991 case SIOCINITIFADDR: 992 ifp->if_flags |= IFF_UP; 993 kue_init(sc); 994 995 switch (ifa->ifa_addr->sa_family) { 996 #ifdef INET 997 case AF_INET: 998 arp_ifinit(ifp, ifa); 999 break; 1000 #endif /* INET */ 1001 } 1002 break; 1003 1004 case SIOCSIFMTU: 1005 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1006 error = EINVAL; 1007 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1008 error = 0; 1009 break; 1010 1011 case SIOCSIFFLAGS: 1012 if ((error = ifioctl_common(ifp, command, data)) != 0) 1013 break; 1014 if (ifp->if_flags & IFF_UP) { 1015 if (ifp->if_flags & IFF_RUNNING && 1016 ifp->if_flags & IFF_PROMISC && 1017 !(sc->kue_if_flags & IFF_PROMISC)) { 1018 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 1019 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1020 sc->kue_rxfilt); 1021 } else if (ifp->if_flags & IFF_RUNNING && 1022 !(ifp->if_flags & IFF_PROMISC) && 1023 sc->kue_if_flags & IFF_PROMISC) { 1024 sc->kue_rxfilt &= ~KUE_RXFILT_PROMISC; 1025 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1026 sc->kue_rxfilt); 1027 } else if (!(ifp->if_flags & IFF_RUNNING)) 1028 kue_init(sc); 1029 } else { 1030 if (ifp->if_flags & IFF_RUNNING) 1031 kue_stop(sc); 1032 } 1033 sc->kue_if_flags = ifp->if_flags; 1034 error = 0; 1035 break; 1036 case SIOCADDMULTI: 1037 case SIOCDELMULTI: 1038 kue_setmulti(sc); 1039 error = 0; 1040 break; 1041 default: 1042 error = ether_ioctl(ifp, command, data); 1043 break; 1044 } 1045 1046 splx(s); 1047 1048 return (error); 1049 } 1050 1051 static void 1052 kue_watchdog(struct ifnet *ifp) 1053 { 1054 struct kue_softc *sc = ifp->if_softc; 1055 struct kue_chain *c; 1056 usbd_status stat; 1057 int s; 1058 1059 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 1060 1061 if (sc->kue_dying) 1062 return; 1063 1064 ifp->if_oerrors++; 1065 printf("%s: watchdog timeout\n", device_xname(sc->kue_dev)); 1066 1067 s = splusb(); 1068 c = &sc->kue_cdata.kue_tx_chain[0]; 1069 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat); 1070 kue_txeof(c->kue_xfer, c, stat); 1071 1072 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1073 kue_start(ifp); 1074 splx(s); 1075 } 1076 1077 /* 1078 * Stop the adapter and free any mbufs allocated to the 1079 * RX and TX lists. 1080 */ 1081 static void 1082 kue_stop(struct kue_softc *sc) 1083 { 1084 usbd_status err; 1085 struct ifnet *ifp; 1086 int i; 1087 1088 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 1089 1090 ifp = GET_IFP(sc); 1091 ifp->if_timer = 0; 1092 1093 /* Stop transfers. */ 1094 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) { 1095 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1096 if (err) { 1097 printf("%s: abort rx pipe failed: %s\n", 1098 device_xname(sc->kue_dev), usbd_errstr(err)); 1099 } 1100 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1101 if (err) { 1102 printf("%s: close rx pipe failed: %s\n", 1103 device_xname(sc->kue_dev), usbd_errstr(err)); 1104 } 1105 sc->kue_ep[KUE_ENDPT_RX] = NULL; 1106 } 1107 1108 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) { 1109 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1110 if (err) { 1111 printf("%s: abort tx pipe failed: %s\n", 1112 device_xname(sc->kue_dev), usbd_errstr(err)); 1113 } 1114 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1115 if (err) { 1116 printf("%s: close tx pipe failed: %s\n", 1117 device_xname(sc->kue_dev), usbd_errstr(err)); 1118 } 1119 sc->kue_ep[KUE_ENDPT_TX] = NULL; 1120 } 1121 1122 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) { 1123 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1124 if (err) { 1125 printf("%s: abort intr pipe failed: %s\n", 1126 device_xname(sc->kue_dev), usbd_errstr(err)); 1127 } 1128 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1129 if (err) { 1130 printf("%s: close intr pipe failed: %s\n", 1131 device_xname(sc->kue_dev), usbd_errstr(err)); 1132 } 1133 sc->kue_ep[KUE_ENDPT_INTR] = NULL; 1134 } 1135 1136 /* Free RX resources. */ 1137 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1138 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) { 1139 usbd_free_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer); 1140 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL; 1141 } 1142 } 1143 1144 /* Free TX resources. */ 1145 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 1146 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) { 1147 usbd_free_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer); 1148 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL; 1149 } 1150 } 1151 1152 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1153 } 1154
Indexes created Mon Sep 29 03:10:08 GMT 2025