usb_ethernet.c revision 196403
1184610Salfred/* $FreeBSD: head/sys/dev/usb/net/usb_ethernet.c 196403 2009-08-20 19:17:53Z jhb $ */ 2184610Salfred/*- 3188412Sthompsa * Copyright (c) 2009 Andrew Thompson (thompsa@FreeBSD.org) 4184610Salfred * 5184610Salfred * Redistribution and use in source and binary forms, with or without 6184610Salfred * modification, are permitted provided that the following conditions 7184610Salfred * are met: 8184610Salfred * 1. Redistributions of source code must retain the above copyright 9184610Salfred * notice, this list of conditions and the following disclaimer. 10184610Salfred * 2. Redistributions in binary form must reproduce the above copyright 11184610Salfred * notice, this list of conditions and the following disclaimer in the 12184610Salfred * documentation and/or other materials provided with the distribution. 13184610Salfred * 14184610Salfred * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15184610Salfred * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16184610Salfred * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17184610Salfred * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18184610Salfred * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19184610Salfred * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20184610Salfred * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21184610Salfred * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22184610Salfred * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23184610Salfred * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24184610Salfred * SUCH DAMAGE. 25184610Salfred */ 26184610Salfred 27194677Sthompsa#include <sys/stdint.h> 28194677Sthompsa#include <sys/stddef.h> 29194677Sthompsa#include <sys/param.h> 30194677Sthompsa#include <sys/queue.h> 31194677Sthompsa#include <sys/types.h> 32194677Sthompsa#include <sys/systm.h> 33194677Sthompsa#include <sys/kernel.h> 34194677Sthompsa#include <sys/bus.h> 35194677Sthompsa#include <sys/linker_set.h> 36194677Sthompsa#include <sys/module.h> 37194677Sthompsa#include <sys/lock.h> 38194677Sthompsa#include <sys/mutex.h> 39194677Sthompsa#include <sys/condvar.h> 40194677Sthompsa#include <sys/sysctl.h> 41194677Sthompsa#include <sys/sx.h> 42194677Sthompsa#include <sys/unistd.h> 43194677Sthompsa#include <sys/callout.h> 44194677Sthompsa#include <sys/malloc.h> 45194677Sthompsa#include <sys/priv.h> 46194677Sthompsa 47188942Sthompsa#include <dev/usb/usb.h> 48194677Sthompsa#include <dev/usb/usbdi.h> 49188412Sthompsa 50188942Sthompsa#include <dev/usb/usb_process.h> 51188942Sthompsa#include <dev/usb/net/usb_ethernet.h> 52184610Salfred 53188412SthompsaSYSCTL_NODE(_net, OID_AUTO, ue, CTLFLAG_RD, 0, "USB Ethernet parameters"); 54184610Salfred 55188412Sthompsa#define UE_LOCK(_ue) mtx_lock((_ue)->ue_mtx) 56188412Sthompsa#define UE_UNLOCK(_ue) mtx_unlock((_ue)->ue_mtx) 57188412Sthompsa#define UE_LOCK_ASSERT(_ue, t) mtx_assert((_ue)->ue_mtx, t) 58188412Sthompsa 59188942SthompsaMODULE_DEPEND(uether, usb, 1, 1, 1); 60188942SthompsaMODULE_DEPEND(uether, miibus, 1, 1, 1); 61188552Sthompsa 62188412Sthompsastatic struct unrhdr *ueunit; 63188412Sthompsa 64193045Sthompsastatic usb_proc_callback_t ue_attach_post_task; 65193045Sthompsastatic usb_proc_callback_t ue_promisc_task; 66193045Sthompsastatic usb_proc_callback_t ue_setmulti_task; 67193045Sthompsastatic usb_proc_callback_t ue_ifmedia_task; 68193045Sthompsastatic usb_proc_callback_t ue_tick_task; 69193045Sthompsastatic usb_proc_callback_t ue_start_task; 70193045Sthompsastatic usb_proc_callback_t ue_stop_task; 71188412Sthompsa 72188412Sthompsastatic void ue_init(void *); 73188412Sthompsastatic void ue_start(struct ifnet *); 74188412Sthompsastatic int ue_ifmedia_upd(struct ifnet *); 75188412Sthompsastatic void ue_watchdog(void *); 76188412Sthompsa 77188412Sthompsa/* 78188412Sthompsa * Return values: 79188412Sthompsa * 0: success 80188412Sthompsa * Else: device has been detached 81188412Sthompsa */ 82188412Sthompsauint8_t 83194228Sthompsauether_pause(struct usb_ether *ue, unsigned int _ticks) 84184610Salfred{ 85194228Sthompsa if (usb_proc_is_gone(&ue->ue_tq)) { 86188412Sthompsa /* nothing to do */ 87188412Sthompsa return (1); 88188412Sthompsa } 89194228Sthompsa usb_pause_mtx(ue->ue_mtx, _ticks); 90188412Sthompsa return (0); 91188412Sthompsa} 92184610Salfred 93188412Sthompsastatic void 94192984Sthompsaue_queue_command(struct usb_ether *ue, 95193045Sthompsa usb_proc_callback_t *fn, 96192984Sthompsa struct usb_proc_msg *t0, struct usb_proc_msg *t1) 97188412Sthompsa{ 98192984Sthompsa struct usb_ether_cfg_task *task; 99188412Sthompsa 100188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 101188412Sthompsa 102194228Sthompsa if (usb_proc_is_gone(&ue->ue_tq)) { 103188412Sthompsa return; /* nothing to do */ 104184610Salfred } 105188412Sthompsa /* 106188412Sthompsa * NOTE: The task cannot get executed before we drop the 107188412Sthompsa * "sc_mtx" mutex. It is safe to update fields in the message 108188412Sthompsa * structure after that the message got queued. 109188412Sthompsa */ 110192984Sthompsa task = (struct usb_ether_cfg_task *) 111194228Sthompsa usb_proc_msignal(&ue->ue_tq, t0, t1); 112188412Sthompsa 113188412Sthompsa /* Setup callback and self pointers */ 114188412Sthompsa task->hdr.pm_callback = fn; 115188412Sthompsa task->ue = ue; 116188412Sthompsa 117188412Sthompsa /* 118188412Sthompsa * Start and stop must be synchronous! 119188412Sthompsa */ 120188412Sthompsa if ((fn == ue_start_task) || (fn == ue_stop_task)) 121194228Sthompsa usb_proc_mwait(&ue->ue_tq, t0, t1); 122184610Salfred} 123184610Salfred 124188412Sthompsastruct ifnet * 125194228Sthompsauether_getifp(struct usb_ether *ue) 126184610Salfred{ 127188412Sthompsa return (ue->ue_ifp); 128188412Sthompsa} 129184610Salfred 130188412Sthompsastruct mii_data * 131194228Sthompsauether_getmii(struct usb_ether *ue) 132188412Sthompsa{ 133188412Sthompsa return (device_get_softc(ue->ue_miibus)); 134188412Sthompsa} 135188412Sthompsa 136188412Sthompsavoid * 137194228Sthompsauether_getsc(struct usb_ether *ue) 138188412Sthompsa{ 139188412Sthompsa return (ue->ue_sc); 140188412Sthompsa} 141188412Sthompsa 142188412Sthompsastatic int 143188412Sthompsaue_sysctl_parent(SYSCTL_HANDLER_ARGS) 144188412Sthompsa{ 145192984Sthompsa struct usb_ether *ue = arg1; 146188412Sthompsa const char *name; 147188412Sthompsa 148188412Sthompsa name = device_get_nameunit(ue->ue_dev); 149188412Sthompsa return SYSCTL_OUT(req, name, strlen(name)); 150188412Sthompsa} 151188412Sthompsa 152188412Sthompsaint 153194228Sthompsauether_ifattach(struct usb_ether *ue) 154188412Sthompsa{ 155188412Sthompsa int error; 156188412Sthompsa 157188412Sthompsa /* check some critical parameters */ 158188412Sthompsa if ((ue->ue_dev == NULL) || 159188412Sthompsa (ue->ue_udev == NULL) || 160188412Sthompsa (ue->ue_mtx == NULL) || 161188412Sthompsa (ue->ue_methods == NULL)) 162188412Sthompsa return (EINVAL); 163188412Sthompsa 164194228Sthompsa error = usb_proc_create(&ue->ue_tq, ue->ue_mtx, 165188412Sthompsa device_get_nameunit(ue->ue_dev), USB_PRI_MED); 166188412Sthompsa if (error) { 167188412Sthompsa device_printf(ue->ue_dev, "could not setup taskqueue\n"); 168188412Sthompsa goto error; 169188412Sthompsa } 170188412Sthompsa 171188412Sthompsa /* fork rest of the attach code */ 172188412Sthompsa UE_LOCK(ue); 173188412Sthompsa ue_queue_command(ue, ue_attach_post_task, 174188412Sthompsa &ue->ue_sync_task[0].hdr, 175188412Sthompsa &ue->ue_sync_task[1].hdr); 176188412Sthompsa UE_UNLOCK(ue); 177188412Sthompsa 178188412Sthompsaerror: 179188412Sthompsa return (error); 180188412Sthompsa} 181188412Sthompsa 182188412Sthompsastatic void 183192984Sthompsaue_attach_post_task(struct usb_proc_msg *_task) 184188412Sthompsa{ 185192984Sthompsa struct usb_ether_cfg_task *task = 186192984Sthompsa (struct usb_ether_cfg_task *)_task; 187192984Sthompsa struct usb_ether *ue = task->ue; 188188412Sthompsa struct ifnet *ifp; 189188412Sthompsa int error; 190188412Sthompsa char num[14]; /* sufficient for 32 bits */ 191188412Sthompsa 192188412Sthompsa /* first call driver's post attach routine */ 193188412Sthompsa ue->ue_methods->ue_attach_post(ue); 194188412Sthompsa 195188412Sthompsa UE_UNLOCK(ue); 196188412Sthompsa 197188412Sthompsa ue->ue_unit = alloc_unr(ueunit); 198194228Sthompsa usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0); 199188412Sthompsa sysctl_ctx_init(&ue->ue_sysctl_ctx); 200188412Sthompsa 201188412Sthompsa ifp = if_alloc(IFT_ETHER); 202184610Salfred if (ifp == NULL) { 203188412Sthompsa device_printf(ue->ue_dev, "could not allocate ifnet\n"); 204188412Sthompsa goto error; 205184610Salfred } 206184610Salfred 207188412Sthompsa ifp->if_softc = ue; 208188412Sthompsa if_initname(ifp, "ue", ue->ue_unit); 209188412Sthompsa ifp->if_mtu = ETHERMTU; 210188412Sthompsa ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 211188412Sthompsa if (ue->ue_methods->ue_ioctl != NULL) 212188412Sthompsa ifp->if_ioctl = ue->ue_methods->ue_ioctl; 213188412Sthompsa else 214194228Sthompsa ifp->if_ioctl = uether_ioctl; 215188412Sthompsa ifp->if_start = ue_start; 216188412Sthompsa ifp->if_init = ue_init; 217188412Sthompsa IFQ_SET_MAXLEN(&ifp->if_snd, IFQ_MAXLEN); 218188412Sthompsa ifp->if_snd.ifq_drv_maxlen = IFQ_MAXLEN; 219188412Sthompsa IFQ_SET_READY(&ifp->if_snd); 220188412Sthompsa ue->ue_ifp = ifp; 221184610Salfred 222188412Sthompsa if (ue->ue_methods->ue_mii_upd != NULL && 223188412Sthompsa ue->ue_methods->ue_mii_sts != NULL) { 224196403Sjhb mtx_lock(&Giant); /* device_xxx() depends on this */ 225188412Sthompsa error = mii_phy_probe(ue->ue_dev, &ue->ue_miibus, 226188412Sthompsa ue_ifmedia_upd, ue->ue_methods->ue_mii_sts); 227196403Sjhb mtx_unlock(&Giant); 228188412Sthompsa if (error) { 229188412Sthompsa device_printf(ue->ue_dev, "MII without any PHY\n"); 230188412Sthompsa goto error; 231188412Sthompsa } 232188412Sthompsa } 233184610Salfred 234188412Sthompsa if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev)); 235188412Sthompsa ether_ifattach(ifp, ue->ue_eaddr); 236188412Sthompsa 237188412Sthompsa snprintf(num, sizeof(num), "%u", ue->ue_unit); 238188412Sthompsa ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx, 239188412Sthompsa &SYSCTL_NODE_CHILDREN(_net, ue), 240188412Sthompsa OID_AUTO, num, CTLFLAG_RD, NULL, ""); 241188412Sthompsa SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx, 242188412Sthompsa SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO, 243188412Sthompsa "%parent", CTLFLAG_RD, ue, 0, 244188412Sthompsa ue_sysctl_parent, "A", "parent device"); 245188412Sthompsa 246188412Sthompsa UE_LOCK(ue); 247188412Sthompsa return; 248188412Sthompsa 249188412Sthompsaerror: 250188412Sthompsa free_unr(ueunit, ue->ue_unit); 251188412Sthompsa if (ue->ue_ifp != NULL) { 252188412Sthompsa if_free(ue->ue_ifp); 253188412Sthompsa ue->ue_ifp = NULL; 254184610Salfred } 255188412Sthompsa UE_LOCK(ue); 256188412Sthompsa return; 257188412Sthompsa} 258184610Salfred 259188412Sthompsavoid 260194228Sthompsauether_ifdetach(struct usb_ether *ue) 261188412Sthompsa{ 262188412Sthompsa struct ifnet *ifp; 263184610Salfred 264188412Sthompsa /* wait for any post attach or other command to complete */ 265194228Sthompsa usb_proc_drain(&ue->ue_tq); 266184610Salfred 267188412Sthompsa /* read "ifnet" pointer after taskqueue drain */ 268188412Sthompsa ifp = ue->ue_ifp; 269184610Salfred 270188412Sthompsa if (ifp != NULL) { 271184610Salfred 272188412Sthompsa /* we are not running any more */ 273188412Sthompsa UE_LOCK(ue); 274188412Sthompsa ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 275188412Sthompsa UE_UNLOCK(ue); 276184610Salfred 277188412Sthompsa /* drain any callouts */ 278194228Sthompsa usb_callout_drain(&ue->ue_watchdog); 279188412Sthompsa 280188412Sthompsa /* detach miibus */ 281188412Sthompsa if (ue->ue_miibus != NULL) { 282196403Sjhb mtx_lock(&Giant); /* device_xxx() depends on this */ 283188412Sthompsa device_delete_child(ue->ue_dev, ue->ue_miibus); 284196403Sjhb mtx_unlock(&Giant); 285184610Salfred } 286184610Salfred 287188412Sthompsa /* detach ethernet */ 288188412Sthompsa ether_ifdetach(ifp); 289184610Salfred 290188412Sthompsa /* free interface instance */ 291188412Sthompsa if_free(ifp); 292188412Sthompsa 293188412Sthompsa /* free sysctl */ 294188412Sthompsa sysctl_ctx_free(&ue->ue_sysctl_ctx); 295188412Sthompsa 296188412Sthompsa /* free unit */ 297188412Sthompsa free_unr(ueunit, ue->ue_unit); 298188412Sthompsa } 299188412Sthompsa 300188412Sthompsa /* free taskqueue, if any */ 301194228Sthompsa usb_proc_free(&ue->ue_tq); 302188412Sthompsa} 303188412Sthompsa 304188412Sthompsauint8_t 305194228Sthompsauether_is_gone(struct usb_ether *ue) 306188412Sthompsa{ 307194228Sthompsa return (usb_proc_is_gone(&ue->ue_tq)); 308188412Sthompsa} 309188412Sthompsa 310188412Sthompsastatic void 311188412Sthompsaue_init(void *arg) 312188412Sthompsa{ 313192984Sthompsa struct usb_ether *ue = arg; 314188412Sthompsa 315188412Sthompsa UE_LOCK(ue); 316188412Sthompsa ue_queue_command(ue, ue_start_task, 317188412Sthompsa &ue->ue_sync_task[0].hdr, 318188412Sthompsa &ue->ue_sync_task[1].hdr); 319188412Sthompsa UE_UNLOCK(ue); 320188412Sthompsa} 321188412Sthompsa 322188412Sthompsastatic void 323192984Sthompsaue_start_task(struct usb_proc_msg *_task) 324188412Sthompsa{ 325192984Sthompsa struct usb_ether_cfg_task *task = 326192984Sthompsa (struct usb_ether_cfg_task *)_task; 327192984Sthompsa struct usb_ether *ue = task->ue; 328188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 329188412Sthompsa 330188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 331188412Sthompsa 332188412Sthompsa ue->ue_methods->ue_init(ue); 333188412Sthompsa 334188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 335188412Sthompsa return; 336188412Sthompsa 337188412Sthompsa if (ue->ue_methods->ue_tick != NULL) 338194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 339188412Sthompsa} 340188412Sthompsa 341188412Sthompsastatic void 342192984Sthompsaue_stop_task(struct usb_proc_msg *_task) 343188412Sthompsa{ 344192984Sthompsa struct usb_ether_cfg_task *task = 345192984Sthompsa (struct usb_ether_cfg_task *)_task; 346192984Sthompsa struct usb_ether *ue = task->ue; 347188412Sthompsa 348188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 349188412Sthompsa 350194228Sthompsa usb_callout_stop(&ue->ue_watchdog); 351188412Sthompsa 352188412Sthompsa ue->ue_methods->ue_stop(ue); 353188412Sthompsa} 354188412Sthompsa 355188412Sthompsastatic void 356188412Sthompsaue_start(struct ifnet *ifp) 357188412Sthompsa{ 358192984Sthompsa struct usb_ether *ue = ifp->if_softc; 359188412Sthompsa 360188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 361188412Sthompsa return; 362188412Sthompsa 363188412Sthompsa UE_LOCK(ue); 364188412Sthompsa ue->ue_methods->ue_start(ue); 365188412Sthompsa UE_UNLOCK(ue); 366188412Sthompsa} 367188412Sthompsa 368188412Sthompsastatic void 369192984Sthompsaue_promisc_task(struct usb_proc_msg *_task) 370188412Sthompsa{ 371192984Sthompsa struct usb_ether_cfg_task *task = 372192984Sthompsa (struct usb_ether_cfg_task *)_task; 373192984Sthompsa struct usb_ether *ue = task->ue; 374188412Sthompsa 375188412Sthompsa ue->ue_methods->ue_setpromisc(ue); 376188412Sthompsa} 377188412Sthompsa 378188412Sthompsastatic void 379192984Sthompsaue_setmulti_task(struct usb_proc_msg *_task) 380188412Sthompsa{ 381192984Sthompsa struct usb_ether_cfg_task *task = 382192984Sthompsa (struct usb_ether_cfg_task *)_task; 383192984Sthompsa struct usb_ether *ue = task->ue; 384188412Sthompsa 385188412Sthompsa ue->ue_methods->ue_setmulti(ue); 386188412Sthompsa} 387188412Sthompsa 388188412Sthompsastatic int 389188412Sthompsaue_ifmedia_upd(struct ifnet *ifp) 390188412Sthompsa{ 391192984Sthompsa struct usb_ether *ue = ifp->if_softc; 392188412Sthompsa 393188412Sthompsa /* Defer to process context */ 394188412Sthompsa UE_LOCK(ue); 395188412Sthompsa ue_queue_command(ue, ue_ifmedia_task, 396188412Sthompsa &ue->ue_media_task[0].hdr, 397188412Sthompsa &ue->ue_media_task[1].hdr); 398188412Sthompsa UE_UNLOCK(ue); 399188412Sthompsa 400188412Sthompsa return (0); 401188412Sthompsa} 402188412Sthompsa 403188412Sthompsastatic void 404192984Sthompsaue_ifmedia_task(struct usb_proc_msg *_task) 405188412Sthompsa{ 406192984Sthompsa struct usb_ether_cfg_task *task = 407192984Sthompsa (struct usb_ether_cfg_task *)_task; 408192984Sthompsa struct usb_ether *ue = task->ue; 409188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 410188412Sthompsa 411188412Sthompsa ue->ue_methods->ue_mii_upd(ifp); 412188412Sthompsa} 413188412Sthompsa 414188412Sthompsastatic void 415188412Sthompsaue_watchdog(void *arg) 416188412Sthompsa{ 417192984Sthompsa struct usb_ether *ue = arg; 418188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 419188412Sthompsa 420188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 421188412Sthompsa return; 422188412Sthompsa 423188412Sthompsa ue_queue_command(ue, ue_tick_task, 424188412Sthompsa &ue->ue_tick_task[0].hdr, 425188412Sthompsa &ue->ue_tick_task[1].hdr); 426188412Sthompsa 427194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 428188412Sthompsa} 429188412Sthompsa 430188412Sthompsastatic void 431192984Sthompsaue_tick_task(struct usb_proc_msg *_task) 432188412Sthompsa{ 433192984Sthompsa struct usb_ether_cfg_task *task = 434192984Sthompsa (struct usb_ether_cfg_task *)_task; 435192984Sthompsa struct usb_ether *ue = task->ue; 436188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 437188412Sthompsa 438188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 439188412Sthompsa return; 440188412Sthompsa 441188412Sthompsa ue->ue_methods->ue_tick(ue); 442188412Sthompsa} 443188412Sthompsa 444188412Sthompsaint 445194228Sthompsauether_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 446188412Sthompsa{ 447192984Sthompsa struct usb_ether *ue = ifp->if_softc; 448188412Sthompsa struct ifreq *ifr = (struct ifreq *)data; 449188412Sthompsa struct mii_data *mii; 450188412Sthompsa int error = 0; 451188412Sthompsa 452188412Sthompsa switch (command) { 453188412Sthompsa case SIOCSIFFLAGS: 454188412Sthompsa UE_LOCK(ue); 455188412Sthompsa if (ifp->if_flags & IFF_UP) { 456188412Sthompsa if (ifp->if_drv_flags & IFF_DRV_RUNNING) 457188412Sthompsa ue_queue_command(ue, ue_promisc_task, 458188412Sthompsa &ue->ue_promisc_task[0].hdr, 459188412Sthompsa &ue->ue_promisc_task[1].hdr); 460188412Sthompsa else 461188412Sthompsa ue_queue_command(ue, ue_start_task, 462188412Sthompsa &ue->ue_sync_task[0].hdr, 463188412Sthompsa &ue->ue_sync_task[1].hdr); 464188412Sthompsa } else { 465188412Sthompsa ue_queue_command(ue, ue_stop_task, 466188412Sthompsa &ue->ue_sync_task[0].hdr, 467188412Sthompsa &ue->ue_sync_task[1].hdr); 468184610Salfred } 469188412Sthompsa UE_UNLOCK(ue); 470188412Sthompsa break; 471188412Sthompsa case SIOCADDMULTI: 472188412Sthompsa case SIOCDELMULTI: 473188412Sthompsa UE_LOCK(ue); 474188412Sthompsa ue_queue_command(ue, ue_setmulti_task, 475188412Sthompsa &ue->ue_multi_task[0].hdr, 476188412Sthompsa &ue->ue_multi_task[1].hdr); 477188412Sthompsa UE_UNLOCK(ue); 478188412Sthompsa break; 479188412Sthompsa case SIOCGIFMEDIA: 480188412Sthompsa case SIOCSIFMEDIA: 481188412Sthompsa if (ue->ue_miibus != NULL) { 482188412Sthompsa mii = device_get_softc(ue->ue_miibus); 483188412Sthompsa error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 484188412Sthompsa } else 485188412Sthompsa error = ether_ioctl(ifp, command, data); 486188412Sthompsa break; 487188412Sthompsa default: 488188412Sthompsa error = ether_ioctl(ifp, command, data); 489188412Sthompsa break; 490184610Salfred } 491188412Sthompsa return (error); 492184610Salfred} 493188412Sthompsa 494188412Sthompsastatic int 495194228Sthompsauether_modevent(module_t mod, int type, void *data) 496188412Sthompsa{ 497188412Sthompsa 498188412Sthompsa switch (type) { 499188412Sthompsa case MOD_LOAD: 500188412Sthompsa ueunit = new_unrhdr(0, INT_MAX, NULL); 501188412Sthompsa break; 502188412Sthompsa case MOD_UNLOAD: 503188412Sthompsa break; 504188412Sthompsa default: 505188412Sthompsa return (EOPNOTSUPP); 506188412Sthompsa } 507188412Sthompsa return (0); 508188412Sthompsa} 509194228Sthompsastatic moduledata_t uether_mod = { 510188942Sthompsa "uether", 511194228Sthompsa uether_modevent, 512188412Sthompsa 0 513188412Sthompsa}; 514188412Sthompsa 515189528Sthompsastruct mbuf * 516194228Sthompsauether_newbuf(void) 517189528Sthompsa{ 518189528Sthompsa struct mbuf *m_new; 519189528Sthompsa 520189528Sthompsa m_new = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 521189528Sthompsa if (m_new == NULL) 522189528Sthompsa return (NULL); 523189528Sthompsa m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 524189528Sthompsa 525189528Sthompsa m_adj(m_new, ETHER_ALIGN); 526189528Sthompsa return (m_new); 527189528Sthompsa} 528189528Sthompsa 529188412Sthompsaint 530194228Sthompsauether_rxmbuf(struct usb_ether *ue, struct mbuf *m, 531188412Sthompsa unsigned int len) 532188412Sthompsa{ 533188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 534188412Sthompsa 535188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 536188412Sthompsa 537188412Sthompsa /* finalize mbuf */ 538188412Sthompsa ifp->if_ipackets++; 539188412Sthompsa m->m_pkthdr.rcvif = ifp; 540188412Sthompsa m->m_pkthdr.len = m->m_len = len; 541188412Sthompsa 542188412Sthompsa /* enqueue for later when the lock can be released */ 543188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 544188412Sthompsa return (0); 545188412Sthompsa} 546188412Sthompsa 547188412Sthompsaint 548194228Sthompsauether_rxbuf(struct usb_ether *ue, struct usb_page_cache *pc, 549188412Sthompsa unsigned int offset, unsigned int len) 550188412Sthompsa{ 551188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 552188412Sthompsa struct mbuf *m; 553188412Sthompsa 554188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 555188412Sthompsa 556189528Sthompsa if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) 557188412Sthompsa return (1); 558188412Sthompsa 559194228Sthompsa m = uether_newbuf(); 560188412Sthompsa if (m == NULL) { 561188412Sthompsa ifp->if_ierrors++; 562188412Sthompsa return (ENOMEM); 563188412Sthompsa } 564188412Sthompsa 565194228Sthompsa usbd_copy_out(pc, offset, mtod(m, uint8_t *), len); 566188412Sthompsa 567188412Sthompsa /* finalize mbuf */ 568188412Sthompsa ifp->if_ipackets++; 569188412Sthompsa m->m_pkthdr.rcvif = ifp; 570188412Sthompsa m->m_pkthdr.len = m->m_len = len; 571188412Sthompsa 572188412Sthompsa /* enqueue for later when the lock can be released */ 573188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 574188412Sthompsa return (0); 575188412Sthompsa} 576188412Sthompsa 577188412Sthompsavoid 578194228Sthompsauether_rxflush(struct usb_ether *ue) 579188412Sthompsa{ 580188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 581188412Sthompsa struct mbuf *m; 582188412Sthompsa 583188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 584188412Sthompsa 585188412Sthompsa for (;;) { 586188412Sthompsa _IF_DEQUEUE(&ue->ue_rxq, m); 587188412Sthompsa if (m == NULL) 588188412Sthompsa break; 589188412Sthompsa 590188412Sthompsa /* 591188412Sthompsa * The USB xfer has been resubmitted so its safe to unlock now. 592188412Sthompsa */ 593188412Sthompsa UE_UNLOCK(ue); 594188412Sthompsa ifp->if_input(ifp, m); 595188412Sthompsa UE_LOCK(ue); 596188412Sthompsa } 597188412Sthompsa} 598188412Sthompsa 599194228SthompsaDECLARE_MODULE(uether, uether_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 600188942SthompsaMODULE_VERSION(uether, 1); 601