1184610Salfred/* $FreeBSD: stable/10/sys/dev/usb/net/usb_ethernet.c 334758 2018-06-07 07:33:46Z hselasky $ */ 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 27226709Syongari#include <sys/cdefs.h> 28226709Syongari__FBSDID("$FreeBSD: stable/10/sys/dev/usb/net/usb_ethernet.c 334758 2018-06-07 07:33:46Z hselasky $"); 29226709Syongari 30194677Sthompsa#include <sys/param.h> 31194677Sthompsa#include <sys/systm.h> 32226709Syongari#include <sys/bus.h> 33226709Syongari#include <sys/condvar.h> 34194677Sthompsa#include <sys/kernel.h> 35226709Syongari#include <sys/lock.h> 36226709Syongari#include <sys/malloc.h> 37226709Syongari#include <sys/mbuf.h> 38194677Sthompsa#include <sys/module.h> 39194677Sthompsa#include <sys/mutex.h> 40226709Syongari#include <sys/socket.h> 41226709Syongari#include <sys/sockio.h> 42194677Sthompsa#include <sys/sysctl.h> 43194677Sthompsa#include <sys/sx.h> 44194677Sthompsa 45226709Syongari#include <net/if.h> 46226709Syongari#include <net/ethernet.h> 47226709Syongari#include <net/if_types.h> 48226709Syongari#include <net/if_media.h> 49226709Syongari#include <net/if_vlan_var.h> 50226709Syongari 51226709Syongari#include <dev/mii/mii.h> 52226709Syongari#include <dev/mii/miivar.h> 53226709Syongari 54188942Sthompsa#include <dev/usb/usb.h> 55194677Sthompsa#include <dev/usb/usbdi.h> 56188412Sthompsa 57188942Sthompsa#include <dev/usb/usb_process.h> 58188942Sthompsa#include <dev/usb/net/usb_ethernet.h> 59184610Salfred 60227309Sedstatic SYSCTL_NODE(_net, OID_AUTO, ue, CTLFLAG_RD, 0, 61227309Sed "USB Ethernet parameters"); 62184610Salfred 63188412Sthompsa#define UE_LOCK(_ue) mtx_lock((_ue)->ue_mtx) 64188412Sthompsa#define UE_UNLOCK(_ue) mtx_unlock((_ue)->ue_mtx) 65188412Sthompsa#define UE_LOCK_ASSERT(_ue, t) mtx_assert((_ue)->ue_mtx, t) 66188412Sthompsa 67188942SthompsaMODULE_DEPEND(uether, usb, 1, 1, 1); 68188942SthompsaMODULE_DEPEND(uether, miibus, 1, 1, 1); 69188552Sthompsa 70188412Sthompsastatic struct unrhdr *ueunit; 71188412Sthompsa 72193045Sthompsastatic usb_proc_callback_t ue_attach_post_task; 73193045Sthompsastatic usb_proc_callback_t ue_promisc_task; 74193045Sthompsastatic usb_proc_callback_t ue_setmulti_task; 75193045Sthompsastatic usb_proc_callback_t ue_ifmedia_task; 76193045Sthompsastatic usb_proc_callback_t ue_tick_task; 77193045Sthompsastatic usb_proc_callback_t ue_start_task; 78193045Sthompsastatic usb_proc_callback_t ue_stop_task; 79188412Sthompsa 80188412Sthompsastatic void ue_init(void *); 81188412Sthompsastatic void ue_start(struct ifnet *); 82188412Sthompsastatic int ue_ifmedia_upd(struct ifnet *); 83188412Sthompsastatic void ue_watchdog(void *); 84188412Sthompsa 85188412Sthompsa/* 86188412Sthompsa * Return values: 87188412Sthompsa * 0: success 88188412Sthompsa * Else: device has been detached 89188412Sthompsa */ 90188412Sthompsauint8_t 91194228Sthompsauether_pause(struct usb_ether *ue, unsigned int _ticks) 92184610Salfred{ 93194228Sthompsa if (usb_proc_is_gone(&ue->ue_tq)) { 94188412Sthompsa /* nothing to do */ 95188412Sthompsa return (1); 96188412Sthompsa } 97194228Sthompsa usb_pause_mtx(ue->ue_mtx, _ticks); 98188412Sthompsa return (0); 99188412Sthompsa} 100184610Salfred 101188412Sthompsastatic void 102192984Sthompsaue_queue_command(struct usb_ether *ue, 103193045Sthompsa usb_proc_callback_t *fn, 104192984Sthompsa struct usb_proc_msg *t0, struct usb_proc_msg *t1) 105188412Sthompsa{ 106192984Sthompsa struct usb_ether_cfg_task *task; 107188412Sthompsa 108188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 109188412Sthompsa 110194228Sthompsa if (usb_proc_is_gone(&ue->ue_tq)) { 111188412Sthompsa return; /* nothing to do */ 112184610Salfred } 113188412Sthompsa /* 114188412Sthompsa * NOTE: The task cannot get executed before we drop the 115188412Sthompsa * "sc_mtx" mutex. It is safe to update fields in the message 116188412Sthompsa * structure after that the message got queued. 117188412Sthompsa */ 118192984Sthompsa task = (struct usb_ether_cfg_task *) 119194228Sthompsa usb_proc_msignal(&ue->ue_tq, t0, t1); 120188412Sthompsa 121188412Sthompsa /* Setup callback and self pointers */ 122188412Sthompsa task->hdr.pm_callback = fn; 123188412Sthompsa task->ue = ue; 124188412Sthompsa 125188412Sthompsa /* 126188412Sthompsa * Start and stop must be synchronous! 127188412Sthompsa */ 128188412Sthompsa if ((fn == ue_start_task) || (fn == ue_stop_task)) 129194228Sthompsa usb_proc_mwait(&ue->ue_tq, t0, t1); 130184610Salfred} 131184610Salfred 132188412Sthompsastruct ifnet * 133194228Sthompsauether_getifp(struct usb_ether *ue) 134184610Salfred{ 135188412Sthompsa return (ue->ue_ifp); 136188412Sthompsa} 137184610Salfred 138188412Sthompsastruct mii_data * 139194228Sthompsauether_getmii(struct usb_ether *ue) 140188412Sthompsa{ 141188412Sthompsa return (device_get_softc(ue->ue_miibus)); 142188412Sthompsa} 143188412Sthompsa 144188412Sthompsavoid * 145194228Sthompsauether_getsc(struct usb_ether *ue) 146188412Sthompsa{ 147188412Sthompsa return (ue->ue_sc); 148188412Sthompsa} 149188412Sthompsa 150188412Sthompsastatic int 151188412Sthompsaue_sysctl_parent(SYSCTL_HANDLER_ARGS) 152188412Sthompsa{ 153192984Sthompsa struct usb_ether *ue = arg1; 154188412Sthompsa const char *name; 155188412Sthompsa 156188412Sthompsa name = device_get_nameunit(ue->ue_dev); 157188412Sthompsa return SYSCTL_OUT(req, name, strlen(name)); 158188412Sthompsa} 159188412Sthompsa 160188412Sthompsaint 161194228Sthompsauether_ifattach(struct usb_ether *ue) 162188412Sthompsa{ 163188412Sthompsa int error; 164188412Sthompsa 165188412Sthompsa /* check some critical parameters */ 166188412Sthompsa if ((ue->ue_dev == NULL) || 167188412Sthompsa (ue->ue_udev == NULL) || 168188412Sthompsa (ue->ue_mtx == NULL) || 169188412Sthompsa (ue->ue_methods == NULL)) 170188412Sthompsa return (EINVAL); 171188412Sthompsa 172194228Sthompsa error = usb_proc_create(&ue->ue_tq, ue->ue_mtx, 173188412Sthompsa device_get_nameunit(ue->ue_dev), USB_PRI_MED); 174188412Sthompsa if (error) { 175188412Sthompsa device_printf(ue->ue_dev, "could not setup taskqueue\n"); 176188412Sthompsa goto error; 177188412Sthompsa } 178188412Sthompsa 179188412Sthompsa /* fork rest of the attach code */ 180188412Sthompsa UE_LOCK(ue); 181188412Sthompsa ue_queue_command(ue, ue_attach_post_task, 182188412Sthompsa &ue->ue_sync_task[0].hdr, 183188412Sthompsa &ue->ue_sync_task[1].hdr); 184188412Sthompsa UE_UNLOCK(ue); 185188412Sthompsa 186188412Sthompsaerror: 187188412Sthompsa return (error); 188188412Sthompsa} 189188412Sthompsa 190334758Shselaskyvoid 191334758Shselaskyuether_ifattach_wait(struct usb_ether *ue) 192334758Shselasky{ 193334758Shselasky 194334758Shselasky UE_LOCK(ue); 195334758Shselasky usb_proc_mwait(&ue->ue_tq, 196334758Shselasky &ue->ue_sync_task[0].hdr, 197334758Shselasky &ue->ue_sync_task[1].hdr); 198334758Shselasky UE_UNLOCK(ue); 199334758Shselasky} 200334758Shselasky 201188412Sthompsastatic void 202192984Sthompsaue_attach_post_task(struct usb_proc_msg *_task) 203188412Sthompsa{ 204192984Sthompsa struct usb_ether_cfg_task *task = 205192984Sthompsa (struct usb_ether_cfg_task *)_task; 206192984Sthompsa struct usb_ether *ue = task->ue; 207188412Sthompsa struct ifnet *ifp; 208188412Sthompsa int error; 209188412Sthompsa char num[14]; /* sufficient for 32 bits */ 210188412Sthompsa 211188412Sthompsa /* first call driver's post attach routine */ 212188412Sthompsa ue->ue_methods->ue_attach_post(ue); 213188412Sthompsa 214188412Sthompsa UE_UNLOCK(ue); 215188412Sthompsa 216188412Sthompsa ue->ue_unit = alloc_unr(ueunit); 217194228Sthompsa usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0); 218188412Sthompsa sysctl_ctx_init(&ue->ue_sysctl_ctx); 219188412Sthompsa 220226709Syongari error = 0; 221262436Srodrigc CURVNET_SET_QUIET(vnet0); 222188412Sthompsa ifp = if_alloc(IFT_ETHER); 223184610Salfred if (ifp == NULL) { 224188412Sthompsa device_printf(ue->ue_dev, "could not allocate ifnet\n"); 225226709Syongari goto fail; 226184610Salfred } 227184610Salfred 228188412Sthompsa ifp->if_softc = ue; 229188412Sthompsa if_initname(ifp, "ue", ue->ue_unit); 230226709Syongari if (ue->ue_methods->ue_attach_post_sub != NULL) { 231226709Syongari ue->ue_ifp = ifp; 232226709Syongari error = ue->ue_methods->ue_attach_post_sub(ue); 233226709Syongari } else { 234226709Syongari ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 235226709Syongari if (ue->ue_methods->ue_ioctl != NULL) 236226709Syongari ifp->if_ioctl = ue->ue_methods->ue_ioctl; 237226709Syongari else 238226709Syongari ifp->if_ioctl = uether_ioctl; 239226709Syongari ifp->if_start = ue_start; 240226709Syongari ifp->if_init = ue_init; 241226709Syongari IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 242226709Syongari ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 243226709Syongari IFQ_SET_READY(&ifp->if_snd); 244226709Syongari ue->ue_ifp = ifp; 245184610Salfred 246226709Syongari if (ue->ue_methods->ue_mii_upd != NULL && 247226709Syongari ue->ue_methods->ue_mii_sts != NULL) { 248226709Syongari /* device_xxx() depends on this */ 249226709Syongari mtx_lock(&Giant); 250226709Syongari error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp, 251226709Syongari ue_ifmedia_upd, ue->ue_methods->ue_mii_sts, 252226709Syongari BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0); 253226709Syongari mtx_unlock(&Giant); 254188412Sthompsa } 255188412Sthompsa } 256184610Salfred 257226709Syongari if (error) { 258226709Syongari device_printf(ue->ue_dev, "attaching PHYs failed\n"); 259226709Syongari goto fail; 260226709Syongari } 261226709Syongari 262188412Sthompsa if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev)); 263188412Sthompsa ether_ifattach(ifp, ue->ue_eaddr); 264226709Syongari /* Tell upper layer we support VLAN oversized frames. */ 265226709Syongari if (ifp->if_capabilities & IFCAP_VLAN_MTU) 266226709Syongari ifp->if_hdrlen = sizeof(struct ether_vlan_header); 267188412Sthompsa 268262436Srodrigc CURVNET_RESTORE(); 269262436Srodrigc 270188412Sthompsa snprintf(num, sizeof(num), "%u", ue->ue_unit); 271188412Sthompsa ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx, 272188412Sthompsa &SYSCTL_NODE_CHILDREN(_net, ue), 273188412Sthompsa OID_AUTO, num, CTLFLAG_RD, NULL, ""); 274188412Sthompsa SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx, 275188412Sthompsa SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO, 276217556Smdf "%parent", CTLTYPE_STRING | CTLFLAG_RD, ue, 0, 277188412Sthompsa ue_sysctl_parent, "A", "parent device"); 278188412Sthompsa 279188412Sthompsa UE_LOCK(ue); 280188412Sthompsa return; 281188412Sthompsa 282226709Syongarifail: 283262436Srodrigc CURVNET_RESTORE(); 284188412Sthompsa free_unr(ueunit, ue->ue_unit); 285188412Sthompsa if (ue->ue_ifp != NULL) { 286188412Sthompsa if_free(ue->ue_ifp); 287188412Sthompsa ue->ue_ifp = NULL; 288184610Salfred } 289188412Sthompsa UE_LOCK(ue); 290188412Sthompsa return; 291188412Sthompsa} 292184610Salfred 293188412Sthompsavoid 294194228Sthompsauether_ifdetach(struct usb_ether *ue) 295188412Sthompsa{ 296188412Sthompsa struct ifnet *ifp; 297184610Salfred 298188412Sthompsa /* wait for any post attach or other command to complete */ 299194228Sthompsa usb_proc_drain(&ue->ue_tq); 300184610Salfred 301188412Sthompsa /* read "ifnet" pointer after taskqueue drain */ 302188412Sthompsa ifp = ue->ue_ifp; 303184610Salfred 304188412Sthompsa if (ifp != NULL) { 305184610Salfred 306188412Sthompsa /* we are not running any more */ 307188412Sthompsa UE_LOCK(ue); 308188412Sthompsa ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 309188412Sthompsa UE_UNLOCK(ue); 310184610Salfred 311188412Sthompsa /* drain any callouts */ 312194228Sthompsa usb_callout_drain(&ue->ue_watchdog); 313188412Sthompsa 314188412Sthompsa /* detach miibus */ 315188412Sthompsa if (ue->ue_miibus != NULL) { 316196403Sjhb mtx_lock(&Giant); /* device_xxx() depends on this */ 317188412Sthompsa device_delete_child(ue->ue_dev, ue->ue_miibus); 318196403Sjhb mtx_unlock(&Giant); 319184610Salfred } 320184610Salfred 321188412Sthompsa /* detach ethernet */ 322188412Sthompsa ether_ifdetach(ifp); 323184610Salfred 324188412Sthompsa /* free interface instance */ 325188412Sthompsa if_free(ifp); 326188412Sthompsa 327188412Sthompsa /* free sysctl */ 328188412Sthompsa sysctl_ctx_free(&ue->ue_sysctl_ctx); 329188412Sthompsa 330188412Sthompsa /* free unit */ 331188412Sthompsa free_unr(ueunit, ue->ue_unit); 332188412Sthompsa } 333188412Sthompsa 334188412Sthompsa /* free taskqueue, if any */ 335194228Sthompsa usb_proc_free(&ue->ue_tq); 336188412Sthompsa} 337188412Sthompsa 338188412Sthompsauint8_t 339194228Sthompsauether_is_gone(struct usb_ether *ue) 340188412Sthompsa{ 341194228Sthompsa return (usb_proc_is_gone(&ue->ue_tq)); 342188412Sthompsa} 343188412Sthompsa 344226709Syongarivoid 345226709Syongariuether_init(void *arg) 346226709Syongari{ 347226709Syongari 348226709Syongari ue_init(arg); 349226709Syongari} 350226709Syongari 351188412Sthompsastatic void 352188412Sthompsaue_init(void *arg) 353188412Sthompsa{ 354192984Sthompsa struct usb_ether *ue = arg; 355188412Sthompsa 356188412Sthompsa UE_LOCK(ue); 357188412Sthompsa ue_queue_command(ue, ue_start_task, 358188412Sthompsa &ue->ue_sync_task[0].hdr, 359188412Sthompsa &ue->ue_sync_task[1].hdr); 360188412Sthompsa UE_UNLOCK(ue); 361188412Sthompsa} 362188412Sthompsa 363188412Sthompsastatic void 364192984Sthompsaue_start_task(struct usb_proc_msg *_task) 365188412Sthompsa{ 366192984Sthompsa struct usb_ether_cfg_task *task = 367192984Sthompsa (struct usb_ether_cfg_task *)_task; 368192984Sthompsa struct usb_ether *ue = task->ue; 369188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 370188412Sthompsa 371188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 372188412Sthompsa 373188412Sthompsa ue->ue_methods->ue_init(ue); 374188412Sthompsa 375188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 376188412Sthompsa return; 377188412Sthompsa 378188412Sthompsa if (ue->ue_methods->ue_tick != NULL) 379194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 380188412Sthompsa} 381188412Sthompsa 382188412Sthompsastatic void 383192984Sthompsaue_stop_task(struct usb_proc_msg *_task) 384188412Sthompsa{ 385192984Sthompsa struct usb_ether_cfg_task *task = 386192984Sthompsa (struct usb_ether_cfg_task *)_task; 387192984Sthompsa struct usb_ether *ue = task->ue; 388188412Sthompsa 389188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 390188412Sthompsa 391194228Sthompsa usb_callout_stop(&ue->ue_watchdog); 392188412Sthompsa 393188412Sthompsa ue->ue_methods->ue_stop(ue); 394188412Sthompsa} 395188412Sthompsa 396226709Syongarivoid 397226709Syongariuether_start(struct ifnet *ifp) 398226709Syongari{ 399226709Syongari 400226709Syongari ue_start(ifp); 401226709Syongari} 402226709Syongari 403188412Sthompsastatic void 404188412Sthompsaue_start(struct ifnet *ifp) 405188412Sthompsa{ 406192984Sthompsa struct usb_ether *ue = ifp->if_softc; 407188412Sthompsa 408188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 409188412Sthompsa return; 410188412Sthompsa 411188412Sthompsa UE_LOCK(ue); 412188412Sthompsa ue->ue_methods->ue_start(ue); 413188412Sthompsa UE_UNLOCK(ue); 414188412Sthompsa} 415188412Sthompsa 416188412Sthompsastatic void 417192984Sthompsaue_promisc_task(struct usb_proc_msg *_task) 418188412Sthompsa{ 419192984Sthompsa struct usb_ether_cfg_task *task = 420192984Sthompsa (struct usb_ether_cfg_task *)_task; 421192984Sthompsa struct usb_ether *ue = task->ue; 422188412Sthompsa 423188412Sthompsa ue->ue_methods->ue_setpromisc(ue); 424188412Sthompsa} 425188412Sthompsa 426188412Sthompsastatic void 427192984Sthompsaue_setmulti_task(struct usb_proc_msg *_task) 428188412Sthompsa{ 429192984Sthompsa struct usb_ether_cfg_task *task = 430192984Sthompsa (struct usb_ether_cfg_task *)_task; 431192984Sthompsa struct usb_ether *ue = task->ue; 432188412Sthompsa 433188412Sthompsa ue->ue_methods->ue_setmulti(ue); 434188412Sthompsa} 435188412Sthompsa 436226709Syongariint 437226709Syongariuether_ifmedia_upd(struct ifnet *ifp) 438226709Syongari{ 439226709Syongari 440226709Syongari return (ue_ifmedia_upd(ifp)); 441226709Syongari} 442226709Syongari 443188412Sthompsastatic int 444188412Sthompsaue_ifmedia_upd(struct ifnet *ifp) 445188412Sthompsa{ 446192984Sthompsa struct usb_ether *ue = ifp->if_softc; 447188412Sthompsa 448188412Sthompsa /* Defer to process context */ 449188412Sthompsa UE_LOCK(ue); 450188412Sthompsa ue_queue_command(ue, ue_ifmedia_task, 451188412Sthompsa &ue->ue_media_task[0].hdr, 452188412Sthompsa &ue->ue_media_task[1].hdr); 453188412Sthompsa UE_UNLOCK(ue); 454188412Sthompsa 455188412Sthompsa return (0); 456188412Sthompsa} 457188412Sthompsa 458188412Sthompsastatic void 459192984Sthompsaue_ifmedia_task(struct usb_proc_msg *_task) 460188412Sthompsa{ 461192984Sthompsa struct usb_ether_cfg_task *task = 462192984Sthompsa (struct usb_ether_cfg_task *)_task; 463192984Sthompsa struct usb_ether *ue = task->ue; 464188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 465188412Sthompsa 466188412Sthompsa ue->ue_methods->ue_mii_upd(ifp); 467188412Sthompsa} 468188412Sthompsa 469188412Sthompsastatic void 470188412Sthompsaue_watchdog(void *arg) 471188412Sthompsa{ 472192984Sthompsa struct usb_ether *ue = arg; 473188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 474188412Sthompsa 475188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 476188412Sthompsa return; 477188412Sthompsa 478188412Sthompsa ue_queue_command(ue, ue_tick_task, 479188412Sthompsa &ue->ue_tick_task[0].hdr, 480188412Sthompsa &ue->ue_tick_task[1].hdr); 481188412Sthompsa 482194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 483188412Sthompsa} 484188412Sthompsa 485188412Sthompsastatic void 486192984Sthompsaue_tick_task(struct usb_proc_msg *_task) 487188412Sthompsa{ 488192984Sthompsa struct usb_ether_cfg_task *task = 489192984Sthompsa (struct usb_ether_cfg_task *)_task; 490192984Sthompsa struct usb_ether *ue = task->ue; 491188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 492188412Sthompsa 493188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 494188412Sthompsa return; 495188412Sthompsa 496188412Sthompsa ue->ue_methods->ue_tick(ue); 497188412Sthompsa} 498188412Sthompsa 499188412Sthompsaint 500194228Sthompsauether_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 501188412Sthompsa{ 502192984Sthompsa struct usb_ether *ue = ifp->if_softc; 503188412Sthompsa struct ifreq *ifr = (struct ifreq *)data; 504188412Sthompsa struct mii_data *mii; 505188412Sthompsa int error = 0; 506188412Sthompsa 507188412Sthompsa switch (command) { 508188412Sthompsa case SIOCSIFFLAGS: 509188412Sthompsa UE_LOCK(ue); 510188412Sthompsa if (ifp->if_flags & IFF_UP) { 511188412Sthompsa if (ifp->if_drv_flags & IFF_DRV_RUNNING) 512188412Sthompsa ue_queue_command(ue, ue_promisc_task, 513188412Sthompsa &ue->ue_promisc_task[0].hdr, 514188412Sthompsa &ue->ue_promisc_task[1].hdr); 515188412Sthompsa else 516188412Sthompsa ue_queue_command(ue, ue_start_task, 517188412Sthompsa &ue->ue_sync_task[0].hdr, 518188412Sthompsa &ue->ue_sync_task[1].hdr); 519188412Sthompsa } else { 520188412Sthompsa ue_queue_command(ue, ue_stop_task, 521188412Sthompsa &ue->ue_sync_task[0].hdr, 522188412Sthompsa &ue->ue_sync_task[1].hdr); 523184610Salfred } 524188412Sthompsa UE_UNLOCK(ue); 525188412Sthompsa break; 526188412Sthompsa case SIOCADDMULTI: 527188412Sthompsa case SIOCDELMULTI: 528188412Sthompsa UE_LOCK(ue); 529188412Sthompsa ue_queue_command(ue, ue_setmulti_task, 530188412Sthompsa &ue->ue_multi_task[0].hdr, 531188412Sthompsa &ue->ue_multi_task[1].hdr); 532188412Sthompsa UE_UNLOCK(ue); 533188412Sthompsa break; 534188412Sthompsa case SIOCGIFMEDIA: 535188412Sthompsa case SIOCSIFMEDIA: 536188412Sthompsa if (ue->ue_miibus != NULL) { 537188412Sthompsa mii = device_get_softc(ue->ue_miibus); 538188412Sthompsa error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 539188412Sthompsa } else 540188412Sthompsa error = ether_ioctl(ifp, command, data); 541188412Sthompsa break; 542188412Sthompsa default: 543188412Sthompsa error = ether_ioctl(ifp, command, data); 544188412Sthompsa break; 545184610Salfred } 546188412Sthompsa return (error); 547184610Salfred} 548188412Sthompsa 549188412Sthompsastatic int 550194228Sthompsauether_modevent(module_t mod, int type, void *data) 551188412Sthompsa{ 552188412Sthompsa 553188412Sthompsa switch (type) { 554188412Sthompsa case MOD_LOAD: 555188412Sthompsa ueunit = new_unrhdr(0, INT_MAX, NULL); 556188412Sthompsa break; 557188412Sthompsa case MOD_UNLOAD: 558188412Sthompsa break; 559188412Sthompsa default: 560188412Sthompsa return (EOPNOTSUPP); 561188412Sthompsa } 562188412Sthompsa return (0); 563188412Sthompsa} 564194228Sthompsastatic moduledata_t uether_mod = { 565188942Sthompsa "uether", 566194228Sthompsa uether_modevent, 567241394Skevlo 0 568188412Sthompsa}; 569188412Sthompsa 570189528Sthompsastruct mbuf * 571194228Sthompsauether_newbuf(void) 572189528Sthompsa{ 573189528Sthompsa struct mbuf *m_new; 574189528Sthompsa 575243857Sglebius m_new = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 576189528Sthompsa if (m_new == NULL) 577189528Sthompsa return (NULL); 578189528Sthompsa m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 579189528Sthompsa 580189528Sthompsa m_adj(m_new, ETHER_ALIGN); 581189528Sthompsa return (m_new); 582189528Sthompsa} 583189528Sthompsa 584188412Sthompsaint 585194228Sthompsauether_rxmbuf(struct usb_ether *ue, struct mbuf *m, 586188412Sthompsa unsigned int len) 587188412Sthompsa{ 588188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 589188412Sthompsa 590188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 591188412Sthompsa 592188412Sthompsa /* finalize mbuf */ 593188412Sthompsa ifp->if_ipackets++; 594188412Sthompsa m->m_pkthdr.rcvif = ifp; 595188412Sthompsa m->m_pkthdr.len = m->m_len = len; 596188412Sthompsa 597188412Sthompsa /* enqueue for later when the lock can be released */ 598188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 599188412Sthompsa return (0); 600188412Sthompsa} 601188412Sthompsa 602188412Sthompsaint 603194228Sthompsauether_rxbuf(struct usb_ether *ue, struct usb_page_cache *pc, 604188412Sthompsa unsigned int offset, unsigned int len) 605188412Sthompsa{ 606188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 607188412Sthompsa struct mbuf *m; 608188412Sthompsa 609188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 610188412Sthompsa 611189528Sthompsa if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) 612188412Sthompsa return (1); 613188412Sthompsa 614194228Sthompsa m = uether_newbuf(); 615188412Sthompsa if (m == NULL) { 616213438Syongari ifp->if_iqdrops++; 617188412Sthompsa return (ENOMEM); 618188412Sthompsa } 619188412Sthompsa 620194228Sthompsa usbd_copy_out(pc, offset, mtod(m, uint8_t *), len); 621188412Sthompsa 622188412Sthompsa /* finalize mbuf */ 623188412Sthompsa ifp->if_ipackets++; 624188412Sthompsa m->m_pkthdr.rcvif = ifp; 625188412Sthompsa m->m_pkthdr.len = m->m_len = len; 626188412Sthompsa 627188412Sthompsa /* enqueue for later when the lock can be released */ 628188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 629188412Sthompsa return (0); 630188412Sthompsa} 631188412Sthompsa 632188412Sthompsavoid 633194228Sthompsauether_rxflush(struct usb_ether *ue) 634188412Sthompsa{ 635188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 636188412Sthompsa struct mbuf *m; 637188412Sthompsa 638188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 639188412Sthompsa 640188412Sthompsa for (;;) { 641188412Sthompsa _IF_DEQUEUE(&ue->ue_rxq, m); 642188412Sthompsa if (m == NULL) 643188412Sthompsa break; 644188412Sthompsa 645188412Sthompsa /* 646188412Sthompsa * The USB xfer has been resubmitted so its safe to unlock now. 647188412Sthompsa */ 648188412Sthompsa UE_UNLOCK(ue); 649188412Sthompsa ifp->if_input(ifp, m); 650188412Sthompsa UE_LOCK(ue); 651188412Sthompsa } 652188412Sthompsa} 653188412Sthompsa 654194228SthompsaDECLARE_MODULE(uether, uether_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 655188942SthompsaMODULE_VERSION(uether, 1); 656