if_kue.c revision 1.85
1 /* $NetBSD: if_kue.c,v 1.85 2016/06/10 13:27:15 ozaki-r 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 1.85 2016/06/10 13:27:15 ozaki-r Exp $"); 75 76 #ifdef _KERNEL_OPT 77 #include "opt_inet.h" 78 #endif 79 80 #include <sys/param.h> 81 #include <sys/systm.h> 82 #include <sys/sockio.h> 83 #include <sys/mbuf.h> 84 #include <sys/kmem.h> 85 #include <sys/kernel.h> 86 #include <sys/socket.h> 87 #include <sys/device.h> 88 #include <sys/proc.h> 89 #include <sys/rndsource.h> 90 91 #include <net/if.h> 92 #include <net/if_arp.h> 93 #include <net/if_dl.h> 94 #include <net/bpf.h> 95 #include <net/if_ether.h> 96 97 #ifdef INET 98 #include <netinet/in.h> 99 #include <netinet/if_inarp.h> 100 #endif 101 102 #include <dev/usb/usb.h> 103 #include <dev/usb/usbdi.h> 104 #include <dev/usb/usbdi_util.h> 105 #include <dev/usb/usbdivar.h> 106 #include <dev/usb/usbdevs.h> 107 108 #include <dev/usb/if_kuereg.h> 109 #include <dev/usb/kue_fw.h> 110 111 #ifdef KUE_DEBUG 112 #define DPRINTF(x) if (kuedebug) printf x 113 #define DPRINTFN(n,x) if (kuedebug >= (n)) printf x 114 int kuedebug = 0; 115 #else 116 #define DPRINTF(x) 117 #define DPRINTFN(n,x) 118 #endif 119 120 /* 121 * Various supported device vendors/products. 122 */ 123 static const struct usb_devno kue_devs[] = { 124 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C19250 }, 125 { USB_VENDOR_3COM, USB_PRODUCT_3COM_3C460 }, 126 { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_URE450 }, 127 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BT }, 128 { USB_VENDOR_ADS, USB_PRODUCT_ADS_UBS10BTX }, 129 { USB_VENDOR_AOX, USB_PRODUCT_AOX_USB101 }, 130 { USB_VENDOR_ASANTE, USB_PRODUCT_ASANTE_EA }, 131 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC10T }, 132 { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_DSB650C }, 133 { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_ETHER_USB_T }, 134 { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DSB650C }, 135 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_E45 }, 136 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX1 }, 137 { USB_VENDOR_ENTREGA, USB_PRODUCT_ENTREGA_XX2 }, 138 { USB_VENDOR_IODATA, USB_PRODUCT_IODATA_USBETT }, 139 { USB_VENDOR_JATON, USB_PRODUCT_JATON_EDA }, 140 { USB_VENDOR_KINGSTON, USB_PRODUCT_KINGSTON_XX1 }, 141 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BT }, 142 { USB_VENDOR_KLSI, USB_PRODUCT_KLSI_DUH3E10BTN }, 143 { USB_VENDOR_LINKSYS, USB_PRODUCT_LINKSYS_USB10T }, 144 { USB_VENDOR_MOBILITY, USB_PRODUCT_MOBILITY_EA }, 145 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101 }, 146 { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_EA101X }, 147 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET }, 148 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET2 }, 149 { USB_VENDOR_PERACOM, USB_PRODUCT_PERACOM_ENET3 }, 150 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA8 }, 151 { USB_VENDOR_PORTGEAR, USB_PRODUCT_PORTGEAR_EA9 }, 152 { USB_VENDOR_PORTSMITH, USB_PRODUCT_PORTSMITH_EEA }, 153 { USB_VENDOR_SHARK, USB_PRODUCT_SHARK_PA }, 154 { USB_VENDOR_SILICOM, USB_PRODUCT_SILICOM_U2E }, 155 { USB_VENDOR_SMC, USB_PRODUCT_SMC_2102USB }, 156 }; 157 #define kue_lookup(v, p) (usb_lookup(kue_devs, v, p)) 158 159 int kue_match(device_t, cfdata_t, void *); 160 void kue_attach(device_t, device_t, void *); 161 int kue_detach(device_t, int); 162 int kue_activate(device_t, enum devact); 163 extern struct cfdriver kue_cd; 164 CFATTACH_DECL_NEW(kue, sizeof(struct kue_softc), kue_match, kue_attach, 165 kue_detach, kue_activate); 166 167 static int kue_tx_list_init(struct kue_softc *); 168 static int kue_rx_list_init(struct kue_softc *); 169 static int kue_send(struct kue_softc *, struct mbuf *, int); 170 static int kue_open_pipes(struct kue_softc *); 171 static void kue_rxeof(struct usbd_xfer *, void *, usbd_status); 172 static void kue_txeof(struct usbd_xfer *, void *, usbd_status); 173 static void kue_start(struct ifnet *); 174 static int kue_ioctl(struct ifnet *, u_long, void *); 175 static void kue_init(void *); 176 static void kue_stop(struct kue_softc *); 177 static void kue_watchdog(struct ifnet *); 178 179 static void kue_setmulti(struct kue_softc *); 180 static void kue_reset(struct kue_softc *); 181 182 static usbd_status kue_ctl(struct kue_softc *, int, uint8_t, 183 uint16_t, void *, uint32_t); 184 static usbd_status kue_setword(struct kue_softc *, uint8_t, uint16_t); 185 static int kue_load_fw(struct kue_softc *); 186 187 static usbd_status 188 kue_setword(struct kue_softc *sc, uint8_t breq, uint16_t word) 189 { 190 usb_device_request_t req; 191 192 DPRINTFN(10,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 193 194 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 195 req.bRequest = breq; 196 USETW(req.wValue, word); 197 USETW(req.wIndex, 0); 198 USETW(req.wLength, 0); 199 200 return usbd_do_request(sc->kue_udev, &req, NULL); 201 } 202 203 static usbd_status 204 kue_ctl(struct kue_softc *sc, int rw, uint8_t breq, uint16_t val, 205 void *data, uint32_t len) 206 { 207 usb_device_request_t req; 208 209 DPRINTFN(10,("%s: %s: enter, len=%d\n", device_xname(sc->kue_dev), 210 __func__, len)); 211 212 if (rw == KUE_CTL_WRITE) 213 req.bmRequestType = UT_WRITE_VENDOR_DEVICE; 214 else 215 req.bmRequestType = UT_READ_VENDOR_DEVICE; 216 217 req.bRequest = breq; 218 USETW(req.wValue, val); 219 USETW(req.wIndex, 0); 220 USETW(req.wLength, len); 221 222 return usbd_do_request(sc->kue_udev, &req, data); 223 } 224 225 static int 226 kue_load_fw(struct kue_softc *sc) 227 { 228 usb_device_descriptor_t dd; 229 usbd_status err; 230 231 DPRINTFN(1,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 232 233 /* 234 * First, check if we even need to load the firmware. 235 * If the device was still attached when the system was 236 * rebooted, it may already have firmware loaded in it. 237 * If this is the case, we don't need to do it again. 238 * And in fact, if we try to load it again, we'll hang, 239 * so we have to avoid this condition if we don't want 240 * to look stupid. 241 * 242 * We can test this quickly by checking the bcdRevision 243 * code. The NIC will return a different revision code if 244 * it's probed while the firmware is still loaded and 245 * running. 246 */ 247 if (usbd_get_device_desc(sc->kue_udev, &dd)) 248 return EIO; 249 if (UGETW(dd.bcdDevice) == KUE_WARM_REV) { 250 printf("%s: warm boot, no firmware download\n", 251 device_xname(sc->kue_dev)); 252 return 0; 253 } 254 255 printf("%s: cold boot, downloading firmware\n", 256 device_xname(sc->kue_dev)); 257 258 /* Load code segment */ 259 DPRINTFN(1,("%s: kue_load_fw: download code_seg\n", 260 device_xname(sc->kue_dev))); 261 /*XXXUNCONST*/ 262 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 263 0, __UNCONST(kue_code_seg), sizeof(kue_code_seg)); 264 if (err) { 265 printf("%s: failed to load code segment: %s\n", 266 device_xname(sc->kue_dev), usbd_errstr(err)); 267 return EIO; 268 } 269 270 /* Load fixup segment */ 271 DPRINTFN(1,("%s: kue_load_fw: download fix_seg\n", 272 device_xname(sc->kue_dev))); 273 /*XXXUNCONST*/ 274 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 275 0, __UNCONST(kue_fix_seg), sizeof(kue_fix_seg)); 276 if (err) { 277 printf("%s: failed to load fixup segment: %s\n", 278 device_xname(sc->kue_dev), usbd_errstr(err)); 279 return EIO; 280 } 281 282 /* Send trigger command. */ 283 DPRINTFN(1,("%s: kue_load_fw: download trig_seg\n", 284 device_xname(sc->kue_dev))); 285 /*XXXUNCONST*/ 286 err = kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SEND_SCAN, 287 0, __UNCONST(kue_trig_seg), sizeof(kue_trig_seg)); 288 if (err) { 289 printf("%s: failed to load trigger segment: %s\n", 290 device_xname(sc->kue_dev), usbd_errstr(err)); 291 return EIO; 292 } 293 294 usbd_delay_ms(sc->kue_udev, 10); 295 296 /* 297 * Reload device descriptor. 298 * Why? The chip without the firmware loaded returns 299 * one revision code. The chip with the firmware 300 * loaded and running returns a *different* revision 301 * code. This confuses the quirk mechanism, which is 302 * dependent on the revision data. 303 */ 304 (void)usbd_reload_device_desc(sc->kue_udev); 305 306 DPRINTFN(1,("%s: %s: done\n", device_xname(sc->kue_dev), __func__)); 307 308 /* Reset the adapter. */ 309 kue_reset(sc); 310 311 return 0; 312 } 313 314 static void 315 kue_setmulti(struct kue_softc *sc) 316 { 317 struct ifnet *ifp = GET_IFP(sc); 318 struct ether_multi *enm; 319 struct ether_multistep step; 320 int i; 321 322 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 323 324 if (ifp->if_flags & IFF_PROMISC) { 325 allmulti: 326 ifp->if_flags |= IFF_ALLMULTI; 327 sc->kue_rxfilt |= KUE_RXFILT_ALLMULTI; 328 sc->kue_rxfilt &= ~KUE_RXFILT_MULTICAST; 329 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 330 return; 331 } 332 333 sc->kue_rxfilt &= ~KUE_RXFILT_ALLMULTI; 334 335 i = 0; 336 ETHER_FIRST_MULTI(step, &sc->kue_ec, enm); 337 while (enm != NULL) { 338 if (i == KUE_MCFILTCNT(sc) || 339 memcmp(enm->enm_addrlo, enm->enm_addrhi, 340 ETHER_ADDR_LEN) != 0) 341 goto allmulti; 342 343 memcpy(KUE_MCFILT(sc, i), enm->enm_addrlo, ETHER_ADDR_LEN); 344 ETHER_NEXT_MULTI(step, enm); 345 i++; 346 } 347 348 ifp->if_flags &= ~IFF_ALLMULTI; 349 350 sc->kue_rxfilt |= KUE_RXFILT_MULTICAST; 351 kue_ctl(sc, KUE_CTL_WRITE, KUE_CMD_SET_MCAST_FILTERS, 352 i, sc->kue_mcfilters, i * ETHER_ADDR_LEN); 353 354 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, sc->kue_rxfilt); 355 } 356 357 /* 358 * Issue a SET_CONFIGURATION command to reset the MAC. This should be 359 * done after the firmware is loaded into the adapter in order to 360 * bring it into proper operation. 361 */ 362 static void 363 kue_reset(struct kue_softc *sc) 364 { 365 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 366 367 if (usbd_set_config_no(sc->kue_udev, KUE_CONFIG_NO, 1) || 368 usbd_device2interface_handle(sc->kue_udev, KUE_IFACE_IDX, 369 &sc->kue_iface)) 370 printf("%s: reset failed\n", device_xname(sc->kue_dev)); 371 372 /* Wait a little while for the chip to get its brains in order. */ 373 usbd_delay_ms(sc->kue_udev, 10); 374 } 375 376 /* 377 * Probe for a KLSI chip. 378 */ 379 int 380 kue_match(device_t parent, cfdata_t match, void *aux) 381 { 382 struct usb_attach_arg *uaa = aux; 383 384 DPRINTFN(25,("kue_match: enter\n")); 385 386 return kue_lookup(uaa->uaa_vendor, uaa->uaa_product) != NULL ? 387 UMATCH_VENDOR_PRODUCT : UMATCH_NONE; 388 } 389 390 /* 391 * Attach the interface. Allocate softc structures, do 392 * setup and ethernet/BPF attach. 393 */ 394 void 395 kue_attach(device_t parent, device_t self, void *aux) 396 { 397 struct kue_softc *sc = device_private(self); 398 struct usb_attach_arg *uaa = aux; 399 char *devinfop; 400 int s; 401 struct ifnet *ifp; 402 struct usbd_device * dev = uaa->uaa_device; 403 struct usbd_interface * iface; 404 usbd_status err; 405 usb_interface_descriptor_t *id; 406 usb_endpoint_descriptor_t *ed; 407 int i; 408 409 DPRINTFN(5,(" : kue_attach: sc=%p, dev=%p", sc, dev)); 410 411 sc->kue_dev = self; 412 413 aprint_naive("\n"); 414 aprint_normal("\n"); 415 416 devinfop = usbd_devinfo_alloc(dev, 0); 417 aprint_normal_dev(self, "%s\n", devinfop); 418 usbd_devinfo_free(devinfop); 419 420 err = usbd_set_config_no(dev, KUE_CONFIG_NO, 1); 421 if (err) { 422 aprint_error_dev(self, "failed to set configuration" 423 ", err=%s\n", usbd_errstr(err)); 424 return; 425 } 426 427 sc->kue_udev = dev; 428 sc->kue_product = uaa->uaa_product; 429 sc->kue_vendor = uaa->uaa_vendor; 430 431 /* Load the firmware into the NIC. */ 432 if (kue_load_fw(sc)) { 433 aprint_error_dev(self, "loading firmware failed\n"); 434 return; 435 } 436 437 err = usbd_device2interface_handle(dev, KUE_IFACE_IDX, &iface); 438 if (err) { 439 aprint_error_dev(self, "getting interface handle failed\n"); 440 return; 441 } 442 443 sc->kue_iface = iface; 444 id = usbd_get_interface_descriptor(iface); 445 446 /* Find endpoints. */ 447 for (i = 0; i < id->bNumEndpoints; i++) { 448 ed = usbd_interface2endpoint_descriptor(iface, i); 449 if (ed == NULL) { 450 aprint_error_dev(self, "couldn't get ep %d\n", i); 451 return; 452 } 453 if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 454 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 455 sc->kue_ed[KUE_ENDPT_RX] = ed->bEndpointAddress; 456 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && 457 UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { 458 sc->kue_ed[KUE_ENDPT_TX] = ed->bEndpointAddress; 459 } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && 460 UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { 461 sc->kue_ed[KUE_ENDPT_INTR] = ed->bEndpointAddress; 462 } 463 } 464 465 if (sc->kue_ed[KUE_ENDPT_RX] == 0 || sc->kue_ed[KUE_ENDPT_TX] == 0) { 466 aprint_error_dev(self, "missing endpoint\n"); 467 return; 468 } 469 470 /* Read ethernet descriptor */ 471 err = kue_ctl(sc, KUE_CTL_READ, KUE_CMD_GET_ETHER_DESCRIPTOR, 472 0, &sc->kue_desc, sizeof(sc->kue_desc)); 473 if (err) { 474 aprint_error_dev(self, "could not read Ethernet descriptor\n"); 475 return; 476 } 477 478 sc->kue_mcfilters = kmem_alloc(KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN, 479 KM_SLEEP); 480 if (sc->kue_mcfilters == NULL) { 481 aprint_error_dev(self, 482 "no memory for multicast filter buffer\n"); 483 return; 484 } 485 486 s = splnet(); 487 488 /* 489 * A KLSI chip was detected. Inform the world. 490 */ 491 aprint_normal_dev(self, "Ethernet address %s\n", 492 ether_sprintf(sc->kue_desc.kue_macaddr)); 493 494 /* Initialize interface info.*/ 495 ifp = GET_IFP(sc); 496 ifp->if_softc = sc; 497 ifp->if_mtu = ETHERMTU; 498 ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 499 ifp->if_ioctl = kue_ioctl; 500 ifp->if_start = kue_start; 501 ifp->if_watchdog = kue_watchdog; 502 strncpy(ifp->if_xname, device_xname(sc->kue_dev), IFNAMSIZ); 503 504 IFQ_SET_READY(&ifp->if_snd); 505 506 /* Attach the interface. */ 507 if_attach(ifp); 508 ether_ifattach(ifp, sc->kue_desc.kue_macaddr); 509 rnd_attach_source(&sc->rnd_source, device_xname(sc->kue_dev), 510 RND_TYPE_NET, RND_FLAG_DEFAULT); 511 512 sc->kue_attached = true; 513 splx(s); 514 515 usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->kue_udev, 516 sc->kue_dev); 517 518 return; 519 } 520 521 int 522 kue_detach(device_t self, int flags) 523 { 524 struct kue_softc *sc = device_private(self); 525 struct ifnet *ifp = GET_IFP(sc); 526 int s; 527 528 s = splusb(); /* XXX why? */ 529 530 if (sc->kue_mcfilters != NULL) { 531 kmem_free(sc->kue_mcfilters, 532 KUE_MCFILTCNT(sc) * ETHER_ADDR_LEN); 533 sc->kue_mcfilters = NULL; 534 } 535 536 if (!sc->kue_attached) { 537 /* Detached before attached finished, so just bail out. */ 538 splx(s); 539 return 0; 540 } 541 542 if (ifp->if_flags & IFF_RUNNING) 543 kue_stop(sc); 544 545 rnd_detach_source(&sc->rnd_source); 546 ether_ifdetach(ifp); 547 548 if_detach(ifp); 549 550 #ifdef DIAGNOSTIC 551 if (sc->kue_ep[KUE_ENDPT_TX] != NULL || 552 sc->kue_ep[KUE_ENDPT_RX] != NULL || 553 sc->kue_ep[KUE_ENDPT_INTR] != NULL) 554 aprint_debug_dev(self, "detach has active endpoints\n"); 555 #endif 556 557 sc->kue_attached = false; 558 splx(s); 559 560 return 0; 561 } 562 563 int 564 kue_activate(device_t self, enum devact act) 565 { 566 struct kue_softc *sc = device_private(self); 567 568 DPRINTFN(2,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 569 570 switch (act) { 571 case DVACT_DEACTIVATE: 572 /* Deactivate the interface. */ 573 if_deactivate(&sc->kue_ec.ec_if); 574 sc->kue_dying = true; 575 return 0; 576 default: 577 return EOPNOTSUPP; 578 } 579 } 580 581 static int 582 kue_rx_list_init(struct kue_softc *sc) 583 { 584 struct kue_cdata *cd; 585 struct kue_chain *c; 586 int i; 587 588 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 589 590 cd = &sc->kue_cdata; 591 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 592 c = &cd->kue_rx_chain[i]; 593 c->kue_sc = sc; 594 c->kue_idx = i; 595 if (c->kue_xfer == NULL) { 596 int error = usbd_create_xfer(sc->kue_ep[KUE_ENDPT_RX], 597 KUE_BUFSZ, USBD_SHORT_XFER_OK, 0, &c->kue_xfer); 598 if (error) 599 return error; 600 c->kue_buf = usbd_get_buffer(c->kue_xfer); 601 } 602 } 603 604 return 0; 605 } 606 607 static int 608 kue_tx_list_init(struct kue_softc *sc) 609 { 610 struct kue_cdata *cd; 611 struct kue_chain *c; 612 int i; 613 614 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev), __func__)); 615 616 cd = &sc->kue_cdata; 617 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 618 c = &cd->kue_tx_chain[i]; 619 c->kue_sc = sc; 620 c->kue_idx = i; 621 if (c->kue_xfer == NULL) { 622 int error = usbd_create_xfer(sc->kue_ep[KUE_ENDPT_TX], 623 KUE_BUFSZ, 0, 0, &c->kue_xfer); 624 if (error) 625 return error; 626 c->kue_buf = usbd_get_buffer(c->kue_xfer); 627 } 628 } 629 630 return 0; 631 } 632 633 /* 634 * A frame has been uploaded: pass the resulting mbuf chain up to 635 * the higher level protocols. 636 */ 637 static void 638 kue_rxeof(struct usbd_xfer *xfer, void *priv, usbd_status status) 639 { 640 struct kue_chain *c = priv; 641 struct kue_softc *sc = c->kue_sc; 642 struct ifnet *ifp = GET_IFP(sc); 643 struct mbuf *m; 644 int total_len, pktlen; 645 int s; 646 647 DPRINTFN(10,("%s: %s: enter status=%d\n", device_xname(sc->kue_dev), 648 __func__, status)); 649 650 if (sc->kue_dying) 651 return; 652 653 if (!(ifp->if_flags & IFF_RUNNING)) 654 return; 655 656 if (status != USBD_NORMAL_COMPLETION) { 657 if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) 658 return; 659 sc->kue_rx_errs++; 660 if (usbd_ratecheck(&sc->kue_rx_notice)) { 661 printf("%s: %u usb errors on rx: %s\n", 662 device_xname(sc->kue_dev), sc->kue_rx_errs, 663 usbd_errstr(status)); 664 sc->kue_rx_errs = 0; 665 } 666 if (status == USBD_STALLED) 667 usbd_clear_endpoint_stall_async(sc->kue_ep[KUE_ENDPT_RX]); 668 goto done; 669 } 670 671 usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); 672 673 DPRINTFN(10,("%s: %s: total_len=%d len=%d\n", device_xname(sc->kue_dev), 674 __func__, total_len, 675 le16dec(c->kue_buf))); 676 677 if (total_len <= 1) 678 goto done; 679 680 pktlen = le16dec(c->kue_buf); 681 if (pktlen > total_len - 2) 682 pktlen = total_len - 2; 683 684 if (pktlen < ETHER_MIN_LEN - ETHER_CRC_LEN || 685 pktlen > MCLBYTES - ETHER_ALIGN) { 686 ifp->if_ierrors++; 687 goto done; 688 } 689 690 /* No errors; receive the packet. */ 691 MGETHDR(m, M_DONTWAIT, MT_DATA); 692 if (m == NULL) { 693 ifp->if_ierrors++; 694 goto done; 695 } 696 if (pktlen > MHLEN - ETHER_ALIGN) { 697 MCLGET(m, M_DONTWAIT); 698 if ((m->m_flags & M_EXT) == 0) { 699 m_freem(m); 700 ifp->if_ierrors++; 701 goto done; 702 } 703 } 704 m->m_data += ETHER_ALIGN; 705 706 /* copy data to mbuf */ 707 memcpy(mtod(m, uint8_t *), c->kue_buf + 2, pktlen); 708 709 ifp->if_ipackets++; 710 m->m_pkthdr.len = m->m_len = pktlen; 711 m_set_rcvif(m, ifp); 712 713 s = splnet(); 714 715 /* 716 * Handle BPF listeners. Let the BPF user see the packet, but 717 * don't pass it up to the ether_input() layer unless it's 718 * a broadcast packet, multicast packet, matches our ethernet 719 * address or the interface is in promiscuous mode. 720 */ 721 bpf_mtap(ifp, m); 722 723 DPRINTFN(10,("%s: %s: deliver %d\n", device_xname(sc->kue_dev), 724 __func__, m->m_len)); 725 if_percpuq_enqueue(ifp->if_percpuq, m); 726 727 splx(s); 728 729 done: 730 731 /* Setup new transfer. */ 732 usbd_setup_xfer(c->kue_xfer, c, c->kue_buf, KUE_BUFSZ, 733 USBD_SHORT_XFER_OK, 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(struct usbd_xfer *xfer, void *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, c, c->kue_buf, total_len, 0, 811 USBD_DEFAULT_TIMEOUT, 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 /* Load the multicast filter. */ 905 kue_setmulti(sc); 906 907 if (sc->kue_ep[KUE_ENDPT_RX] == NULL) { 908 if (kue_open_pipes(sc)) { 909 splx(s); 910 return; 911 } 912 } 913 /* Init TX ring. */ 914 if (kue_tx_list_init(sc)) { 915 printf("%s: tx list init failed\n", device_xname(sc->kue_dev)); 916 splx(s); 917 return; 918 } 919 920 /* Init RX ring. */ 921 if (kue_rx_list_init(sc)) { 922 printf("%s: rx list init failed\n", device_xname(sc->kue_dev)); 923 splx(s); 924 return; 925 } 926 927 /* Start up the receive pipe. */ 928 for (size_t i = 0; i < KUE_RX_LIST_CNT; i++) { 929 struct kue_chain *c = &sc->kue_cdata.kue_rx_chain[i]; 930 usbd_setup_xfer(c->kue_xfer, c, c->kue_buf, KUE_BUFSZ, 931 USBD_SHORT_XFER_OK, USBD_NO_TIMEOUT, kue_rxeof); 932 DPRINTFN(5,("%s: %s: start read\n", device_xname(sc->kue_dev), 933 __func__)); 934 usbd_transfer(c->kue_xfer); 935 } 936 937 ifp->if_flags |= IFF_RUNNING; 938 ifp->if_flags &= ~IFF_OACTIVE; 939 940 splx(s); 941 } 942 943 static int 944 kue_open_pipes(struct kue_softc *sc) 945 { 946 usbd_status err; 947 948 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 949 950 /* Open RX and TX pipes. */ 951 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_RX], 952 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_RX]); 953 if (err) { 954 printf("%s: open rx pipe failed: %s\n", 955 device_xname(sc->kue_dev), usbd_errstr(err)); 956 return EIO; 957 } 958 959 err = usbd_open_pipe(sc->kue_iface, sc->kue_ed[KUE_ENDPT_TX], 960 USBD_EXCLUSIVE_USE, &sc->kue_ep[KUE_ENDPT_TX]); 961 if (err) { 962 printf("%s: open tx pipe failed: %s\n", 963 device_xname(sc->kue_dev), usbd_errstr(err)); 964 return EIO; 965 } 966 967 return 0; 968 } 969 970 static int 971 kue_ioctl(struct ifnet *ifp, u_long command, void *data) 972 { 973 struct kue_softc *sc = ifp->if_softc; 974 struct ifaddr *ifa = (struct ifaddr *)data; 975 struct ifreq *ifr = (struct ifreq *)data; 976 int s, error = 0; 977 978 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 979 980 if (sc->kue_dying) 981 return EIO; 982 983 s = splnet(); 984 985 switch(command) { 986 case SIOCINITIFADDR: 987 ifp->if_flags |= IFF_UP; 988 kue_init(sc); 989 990 switch (ifa->ifa_addr->sa_family) { 991 #ifdef INET 992 case AF_INET: 993 arp_ifinit(ifp, ifa); 994 break; 995 #endif /* INET */ 996 } 997 break; 998 999 case SIOCSIFMTU: 1000 if (ifr->ifr_mtu < ETHERMIN || ifr->ifr_mtu > ETHERMTU) 1001 error = EINVAL; 1002 else if ((error = ifioctl_common(ifp, command, data)) == ENETRESET) 1003 error = 0; 1004 break; 1005 1006 case SIOCSIFFLAGS: 1007 if ((error = ifioctl_common(ifp, command, data)) != 0) 1008 break; 1009 if (ifp->if_flags & IFF_UP) { 1010 if (ifp->if_flags & IFF_RUNNING && 1011 ifp->if_flags & IFF_PROMISC && 1012 !(sc->kue_if_flags & IFF_PROMISC)) { 1013 sc->kue_rxfilt |= KUE_RXFILT_PROMISC; 1014 kue_setword(sc, KUE_CMD_SET_PKT_FILTER, 1015 sc->kue_rxfilt); 1016 } else 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 kue_init(sc); 1024 } else { 1025 if (ifp->if_flags & IFF_RUNNING) 1026 kue_stop(sc); 1027 } 1028 sc->kue_if_flags = ifp->if_flags; 1029 error = 0; 1030 break; 1031 case SIOCADDMULTI: 1032 case SIOCDELMULTI: 1033 error = ether_ioctl(ifp, command, data); 1034 if (error == ENETRESET) { 1035 if (ifp->if_flags & IFF_RUNNING) 1036 kue_setmulti(sc); 1037 error = 0; 1038 } 1039 break; 1040 default: 1041 error = ether_ioctl(ifp, command, data); 1042 break; 1043 } 1044 1045 splx(s); 1046 1047 return error; 1048 } 1049 1050 static void 1051 kue_watchdog(struct ifnet *ifp) 1052 { 1053 struct kue_softc *sc = ifp->if_softc; 1054 struct kue_chain *c; 1055 usbd_status stat; 1056 int s; 1057 1058 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 1059 1060 if (sc->kue_dying) 1061 return; 1062 1063 ifp->if_oerrors++; 1064 printf("%s: watchdog timeout\n", device_xname(sc->kue_dev)); 1065 1066 s = splusb(); 1067 c = &sc->kue_cdata.kue_tx_chain[0]; 1068 usbd_get_xfer_status(c->kue_xfer, NULL, NULL, NULL, &stat); 1069 kue_txeof(c->kue_xfer, c, stat); 1070 1071 if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) 1072 kue_start(ifp); 1073 splx(s); 1074 } 1075 1076 /* 1077 * Stop the adapter and free any mbufs allocated to the 1078 * RX and TX lists. 1079 */ 1080 static void 1081 kue_stop(struct kue_softc *sc) 1082 { 1083 usbd_status err; 1084 struct ifnet *ifp; 1085 int i; 1086 1087 DPRINTFN(5,("%s: %s: enter\n", device_xname(sc->kue_dev),__func__)); 1088 1089 ifp = GET_IFP(sc); 1090 ifp->if_timer = 0; 1091 1092 /* Stop transfers. */ 1093 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) { 1094 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1095 if (err) { 1096 printf("%s: abort rx pipe failed: %s\n", 1097 device_xname(sc->kue_dev), usbd_errstr(err)); 1098 } 1099 } 1100 1101 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) { 1102 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1103 if (err) { 1104 printf("%s: abort tx pipe failed: %s\n", 1105 device_xname(sc->kue_dev), usbd_errstr(err)); 1106 } 1107 } 1108 1109 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) { 1110 err = usbd_abort_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1111 if (err) { 1112 printf("%s: abort intr pipe failed: %s\n", 1113 device_xname(sc->kue_dev), usbd_errstr(err)); 1114 } 1115 } 1116 1117 /* Free RX resources. */ 1118 for (i = 0; i < KUE_RX_LIST_CNT; i++) { 1119 if (sc->kue_cdata.kue_rx_chain[i].kue_xfer != NULL) { 1120 usbd_destroy_xfer(sc->kue_cdata.kue_rx_chain[i].kue_xfer); 1121 sc->kue_cdata.kue_rx_chain[i].kue_xfer = NULL; 1122 } 1123 } 1124 1125 /* Free TX resources. */ 1126 for (i = 0; i < KUE_TX_LIST_CNT; i++) { 1127 if (sc->kue_cdata.kue_tx_chain[i].kue_xfer != NULL) { 1128 usbd_destroy_xfer(sc->kue_cdata.kue_tx_chain[i].kue_xfer); 1129 sc->kue_cdata.kue_tx_chain[i].kue_xfer = NULL; 1130 } 1131 } 1132 1133 /* Close pipes. */ 1134 if (sc->kue_ep[KUE_ENDPT_RX] != NULL) { 1135 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_RX]); 1136 if (err) { 1137 printf("%s: close rx pipe failed: %s\n", 1138 device_xname(sc->kue_dev), usbd_errstr(err)); 1139 } 1140 sc->kue_ep[KUE_ENDPT_RX] = NULL; 1141 } 1142 1143 if (sc->kue_ep[KUE_ENDPT_TX] != NULL) { 1144 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_TX]); 1145 if (err) { 1146 printf("%s: close tx pipe failed: %s\n", 1147 device_xname(sc->kue_dev), usbd_errstr(err)); 1148 } 1149 sc->kue_ep[KUE_ENDPT_TX] = NULL; 1150 } 1151 1152 if (sc->kue_ep[KUE_ENDPT_INTR] != NULL) { 1153 err = usbd_close_pipe(sc->kue_ep[KUE_ENDPT_INTR]); 1154 if (err) { 1155 printf("%s: close intr pipe failed: %s\n", 1156 device_xname(sc->kue_dev), usbd_errstr(err)); 1157 } 1158 sc->kue_ep[KUE_ENDPT_INTR] = NULL; 1159 } 1160 1161 ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); 1162 } 1163
Indexes created Sat Sep 27 22:09:54 GMT 2025