1184610Salfred/* $FreeBSD: stable/11/sys/dev/usb/net/usb_ethernet.c 334757 2018-06-07 07:32:51Z 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/11/sys/dev/usb/net/usb_ethernet.c 334757 2018-06-07 07:32:51Z 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> 46257176Sglebius#include <net/if_var.h> 47226709Syongari#include <net/ethernet.h> 48226709Syongari#include <net/if_types.h> 49226709Syongari#include <net/if_media.h> 50226709Syongari#include <net/if_vlan_var.h> 51226709Syongari 52226709Syongari#include <dev/mii/mii.h> 53226709Syongari#include <dev/mii/miivar.h> 54226709Syongari 55188942Sthompsa#include <dev/usb/usb.h> 56194677Sthompsa#include <dev/usb/usbdi.h> 57188412Sthompsa 58188942Sthompsa#include <dev/usb/usb_process.h> 59188942Sthompsa#include <dev/usb/net/usb_ethernet.h> 60184610Salfred 61227309Sedstatic SYSCTL_NODE(_net, OID_AUTO, ue, CTLFLAG_RD, 0, 62227309Sed "USB Ethernet parameters"); 63184610Salfred 64188412Sthompsa#define UE_LOCK(_ue) mtx_lock((_ue)->ue_mtx) 65188412Sthompsa#define UE_UNLOCK(_ue) mtx_unlock((_ue)->ue_mtx) 66188412Sthompsa#define UE_LOCK_ASSERT(_ue, t) mtx_assert((_ue)->ue_mtx, t) 67188412Sthompsa 68188942SthompsaMODULE_DEPEND(uether, usb, 1, 1, 1); 69188942SthompsaMODULE_DEPEND(uether, miibus, 1, 1, 1); 70188552Sthompsa 71188412Sthompsastatic struct unrhdr *ueunit; 72188412Sthompsa 73193045Sthompsastatic usb_proc_callback_t ue_attach_post_task; 74193045Sthompsastatic usb_proc_callback_t ue_promisc_task; 75193045Sthompsastatic usb_proc_callback_t ue_setmulti_task; 76193045Sthompsastatic usb_proc_callback_t ue_ifmedia_task; 77193045Sthompsastatic usb_proc_callback_t ue_tick_task; 78193045Sthompsastatic usb_proc_callback_t ue_start_task; 79193045Sthompsastatic usb_proc_callback_t ue_stop_task; 80188412Sthompsa 81188412Sthompsastatic void ue_init(void *); 82188412Sthompsastatic void ue_start(struct ifnet *); 83188412Sthompsastatic int ue_ifmedia_upd(struct ifnet *); 84188412Sthompsastatic void ue_watchdog(void *); 85188412Sthompsa 86188412Sthompsa/* 87188412Sthompsa * Return values: 88188412Sthompsa * 0: success 89188412Sthompsa * Else: device has been detached 90188412Sthompsa */ 91188412Sthompsauint8_t 92194228Sthompsauether_pause(struct usb_ether *ue, unsigned int _ticks) 93184610Salfred{ 94194228Sthompsa if (usb_proc_is_gone(&ue->ue_tq)) { 95188412Sthompsa /* nothing to do */ 96188412Sthompsa return (1); 97188412Sthompsa } 98194228Sthompsa usb_pause_mtx(ue->ue_mtx, _ticks); 99188412Sthompsa return (0); 100188412Sthompsa} 101184610Salfred 102188412Sthompsastatic void 103192984Sthompsaue_queue_command(struct usb_ether *ue, 104193045Sthompsa usb_proc_callback_t *fn, 105192984Sthompsa struct usb_proc_msg *t0, struct usb_proc_msg *t1) 106188412Sthompsa{ 107192984Sthompsa struct usb_ether_cfg_task *task; 108188412Sthompsa 109188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 110188412Sthompsa 111194228Sthompsa if (usb_proc_is_gone(&ue->ue_tq)) { 112188412Sthompsa return; /* nothing to do */ 113184610Salfred } 114188412Sthompsa /* 115188412Sthompsa * NOTE: The task cannot get executed before we drop the 116188412Sthompsa * "sc_mtx" mutex. It is safe to update fields in the message 117188412Sthompsa * structure after that the message got queued. 118188412Sthompsa */ 119192984Sthompsa task = (struct usb_ether_cfg_task *) 120194228Sthompsa usb_proc_msignal(&ue->ue_tq, t0, t1); 121188412Sthompsa 122188412Sthompsa /* Setup callback and self pointers */ 123188412Sthompsa task->hdr.pm_callback = fn; 124188412Sthompsa task->ue = ue; 125188412Sthompsa 126188412Sthompsa /* 127188412Sthompsa * Start and stop must be synchronous! 128188412Sthompsa */ 129188412Sthompsa if ((fn == ue_start_task) || (fn == ue_stop_task)) 130194228Sthompsa usb_proc_mwait(&ue->ue_tq, t0, t1); 131184610Salfred} 132184610Salfred 133188412Sthompsastruct ifnet * 134194228Sthompsauether_getifp(struct usb_ether *ue) 135184610Salfred{ 136188412Sthompsa return (ue->ue_ifp); 137188412Sthompsa} 138184610Salfred 139188412Sthompsastruct mii_data * 140194228Sthompsauether_getmii(struct usb_ether *ue) 141188412Sthompsa{ 142188412Sthompsa return (device_get_softc(ue->ue_miibus)); 143188412Sthompsa} 144188412Sthompsa 145188412Sthompsavoid * 146194228Sthompsauether_getsc(struct usb_ether *ue) 147188412Sthompsa{ 148188412Sthompsa return (ue->ue_sc); 149188412Sthompsa} 150188412Sthompsa 151188412Sthompsastatic int 152188412Sthompsaue_sysctl_parent(SYSCTL_HANDLER_ARGS) 153188412Sthompsa{ 154192984Sthompsa struct usb_ether *ue = arg1; 155188412Sthompsa const char *name; 156188412Sthompsa 157188412Sthompsa name = device_get_nameunit(ue->ue_dev); 158280008Sian return SYSCTL_OUT_STR(req, name); 159188412Sthompsa} 160188412Sthompsa 161188412Sthompsaint 162194228Sthompsauether_ifattach(struct usb_ether *ue) 163188412Sthompsa{ 164188412Sthompsa int error; 165188412Sthompsa 166188412Sthompsa /* check some critical parameters */ 167188412Sthompsa if ((ue->ue_dev == NULL) || 168188412Sthompsa (ue->ue_udev == NULL) || 169188412Sthompsa (ue->ue_mtx == NULL) || 170188412Sthompsa (ue->ue_methods == NULL)) 171188412Sthompsa return (EINVAL); 172188412Sthompsa 173194228Sthompsa error = usb_proc_create(&ue->ue_tq, ue->ue_mtx, 174188412Sthompsa device_get_nameunit(ue->ue_dev), USB_PRI_MED); 175188412Sthompsa if (error) { 176188412Sthompsa device_printf(ue->ue_dev, "could not setup taskqueue\n"); 177188412Sthompsa goto error; 178188412Sthompsa } 179188412Sthompsa 180188412Sthompsa /* fork rest of the attach code */ 181188412Sthompsa UE_LOCK(ue); 182188412Sthompsa ue_queue_command(ue, ue_attach_post_task, 183188412Sthompsa &ue->ue_sync_task[0].hdr, 184188412Sthompsa &ue->ue_sync_task[1].hdr); 185188412Sthompsa UE_UNLOCK(ue); 186188412Sthompsa 187188412Sthompsaerror: 188188412Sthompsa return (error); 189188412Sthompsa} 190188412Sthompsa 191334757Shselaskyvoid 192334757Shselaskyuether_ifattach_wait(struct usb_ether *ue) 193334757Shselasky{ 194334757Shselasky 195334757Shselasky UE_LOCK(ue); 196334757Shselasky usb_proc_mwait(&ue->ue_tq, 197334757Shselasky &ue->ue_sync_task[0].hdr, 198334757Shselasky &ue->ue_sync_task[1].hdr); 199334757Shselasky UE_UNLOCK(ue); 200334757Shselasky} 201334757Shselasky 202188412Sthompsastatic void 203192984Sthompsaue_attach_post_task(struct usb_proc_msg *_task) 204188412Sthompsa{ 205192984Sthompsa struct usb_ether_cfg_task *task = 206192984Sthompsa (struct usb_ether_cfg_task *)_task; 207192984Sthompsa struct usb_ether *ue = task->ue; 208188412Sthompsa struct ifnet *ifp; 209188412Sthompsa int error; 210188412Sthompsa char num[14]; /* sufficient for 32 bits */ 211188412Sthompsa 212188412Sthompsa /* first call driver's post attach routine */ 213188412Sthompsa ue->ue_methods->ue_attach_post(ue); 214188412Sthompsa 215188412Sthompsa UE_UNLOCK(ue); 216188412Sthompsa 217188412Sthompsa ue->ue_unit = alloc_unr(ueunit); 218194228Sthompsa usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0); 219188412Sthompsa sysctl_ctx_init(&ue->ue_sysctl_ctx); 220188412Sthompsa 221226709Syongari error = 0; 222262142Srodrigc CURVNET_SET_QUIET(vnet0); 223188412Sthompsa ifp = if_alloc(IFT_ETHER); 224184610Salfred if (ifp == NULL) { 225188412Sthompsa device_printf(ue->ue_dev, "could not allocate ifnet\n"); 226226709Syongari goto fail; 227184610Salfred } 228184610Salfred 229188412Sthompsa ifp->if_softc = ue; 230188412Sthompsa if_initname(ifp, "ue", ue->ue_unit); 231226709Syongari if (ue->ue_methods->ue_attach_post_sub != NULL) { 232226709Syongari ue->ue_ifp = ifp; 233226709Syongari error = ue->ue_methods->ue_attach_post_sub(ue); 234226709Syongari } else { 235226709Syongari ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 236226709Syongari if (ue->ue_methods->ue_ioctl != NULL) 237226709Syongari ifp->if_ioctl = ue->ue_methods->ue_ioctl; 238226709Syongari else 239226709Syongari ifp->if_ioctl = uether_ioctl; 240226709Syongari ifp->if_start = ue_start; 241226709Syongari ifp->if_init = ue_init; 242226709Syongari IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 243226709Syongari ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 244226709Syongari IFQ_SET_READY(&ifp->if_snd); 245226709Syongari ue->ue_ifp = ifp; 246184610Salfred 247226709Syongari if (ue->ue_methods->ue_mii_upd != NULL && 248226709Syongari ue->ue_methods->ue_mii_sts != NULL) { 249226709Syongari /* device_xxx() depends on this */ 250226709Syongari mtx_lock(&Giant); 251226709Syongari error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp, 252226709Syongari ue_ifmedia_upd, ue->ue_methods->ue_mii_sts, 253226709Syongari BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0); 254226709Syongari mtx_unlock(&Giant); 255188412Sthompsa } 256188412Sthompsa } 257184610Salfred 258226709Syongari if (error) { 259226709Syongari device_printf(ue->ue_dev, "attaching PHYs failed\n"); 260226709Syongari goto fail; 261226709Syongari } 262226709Syongari 263188412Sthompsa if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev)); 264188412Sthompsa ether_ifattach(ifp, ue->ue_eaddr); 265226709Syongari /* Tell upper layer we support VLAN oversized frames. */ 266226709Syongari if (ifp->if_capabilities & IFCAP_VLAN_MTU) 267226709Syongari ifp->if_hdrlen = sizeof(struct ether_vlan_header); 268188412Sthompsa 269262142Srodrigc CURVNET_RESTORE(); 270262142Srodrigc 271188412Sthompsa snprintf(num, sizeof(num), "%u", ue->ue_unit); 272188412Sthompsa ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx, 273188412Sthompsa &SYSCTL_NODE_CHILDREN(_net, ue), 274188412Sthompsa OID_AUTO, num, CTLFLAG_RD, NULL, ""); 275188412Sthompsa SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx, 276188412Sthompsa SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO, 277217556Smdf "%parent", CTLTYPE_STRING | CTLFLAG_RD, ue, 0, 278188412Sthompsa ue_sysctl_parent, "A", "parent device"); 279188412Sthompsa 280188412Sthompsa UE_LOCK(ue); 281188412Sthompsa return; 282188412Sthompsa 283226709Syongarifail: 284262142Srodrigc CURVNET_RESTORE(); 285188412Sthompsa free_unr(ueunit, ue->ue_unit); 286188412Sthompsa if (ue->ue_ifp != NULL) { 287188412Sthompsa if_free(ue->ue_ifp); 288188412Sthompsa ue->ue_ifp = NULL; 289184610Salfred } 290188412Sthompsa UE_LOCK(ue); 291188412Sthompsa return; 292188412Sthompsa} 293184610Salfred 294188412Sthompsavoid 295194228Sthompsauether_ifdetach(struct usb_ether *ue) 296188412Sthompsa{ 297188412Sthompsa struct ifnet *ifp; 298184610Salfred 299188412Sthompsa /* wait for any post attach or other command to complete */ 300194228Sthompsa usb_proc_drain(&ue->ue_tq); 301184610Salfred 302188412Sthompsa /* read "ifnet" pointer after taskqueue drain */ 303188412Sthompsa ifp = ue->ue_ifp; 304184610Salfred 305188412Sthompsa if (ifp != NULL) { 306184610Salfred 307188412Sthompsa /* we are not running any more */ 308188412Sthompsa UE_LOCK(ue); 309188412Sthompsa ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 310188412Sthompsa UE_UNLOCK(ue); 311184610Salfred 312188412Sthompsa /* drain any callouts */ 313194228Sthompsa usb_callout_drain(&ue->ue_watchdog); 314188412Sthompsa 315188412Sthompsa /* detach miibus */ 316188412Sthompsa if (ue->ue_miibus != NULL) { 317196403Sjhb mtx_lock(&Giant); /* device_xxx() depends on this */ 318188412Sthompsa device_delete_child(ue->ue_dev, ue->ue_miibus); 319196403Sjhb mtx_unlock(&Giant); 320184610Salfred } 321184610Salfred 322188412Sthompsa /* detach ethernet */ 323188412Sthompsa ether_ifdetach(ifp); 324184610Salfred 325188412Sthompsa /* free interface instance */ 326188412Sthompsa if_free(ifp); 327188412Sthompsa 328188412Sthompsa /* free sysctl */ 329188412Sthompsa sysctl_ctx_free(&ue->ue_sysctl_ctx); 330188412Sthompsa 331188412Sthompsa /* free unit */ 332188412Sthompsa free_unr(ueunit, ue->ue_unit); 333188412Sthompsa } 334188412Sthompsa 335188412Sthompsa /* free taskqueue, if any */ 336194228Sthompsa usb_proc_free(&ue->ue_tq); 337188412Sthompsa} 338188412Sthompsa 339188412Sthompsauint8_t 340194228Sthompsauether_is_gone(struct usb_ether *ue) 341188412Sthompsa{ 342194228Sthompsa return (usb_proc_is_gone(&ue->ue_tq)); 343188412Sthompsa} 344188412Sthompsa 345226709Syongarivoid 346226709Syongariuether_init(void *arg) 347226709Syongari{ 348226709Syongari 349226709Syongari ue_init(arg); 350226709Syongari} 351226709Syongari 352188412Sthompsastatic void 353188412Sthompsaue_init(void *arg) 354188412Sthompsa{ 355192984Sthompsa struct usb_ether *ue = arg; 356188412Sthompsa 357188412Sthompsa UE_LOCK(ue); 358188412Sthompsa ue_queue_command(ue, ue_start_task, 359188412Sthompsa &ue->ue_sync_task[0].hdr, 360188412Sthompsa &ue->ue_sync_task[1].hdr); 361188412Sthompsa UE_UNLOCK(ue); 362188412Sthompsa} 363188412Sthompsa 364188412Sthompsastatic void 365192984Sthompsaue_start_task(struct usb_proc_msg *_task) 366188412Sthompsa{ 367192984Sthompsa struct usb_ether_cfg_task *task = 368192984Sthompsa (struct usb_ether_cfg_task *)_task; 369192984Sthompsa struct usb_ether *ue = task->ue; 370188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 371188412Sthompsa 372188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 373188412Sthompsa 374188412Sthompsa ue->ue_methods->ue_init(ue); 375188412Sthompsa 376188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 377188412Sthompsa return; 378188412Sthompsa 379188412Sthompsa if (ue->ue_methods->ue_tick != NULL) 380194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 381188412Sthompsa} 382188412Sthompsa 383188412Sthompsastatic void 384192984Sthompsaue_stop_task(struct usb_proc_msg *_task) 385188412Sthompsa{ 386192984Sthompsa struct usb_ether_cfg_task *task = 387192984Sthompsa (struct usb_ether_cfg_task *)_task; 388192984Sthompsa struct usb_ether *ue = task->ue; 389188412Sthompsa 390188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 391188412Sthompsa 392194228Sthompsa usb_callout_stop(&ue->ue_watchdog); 393188412Sthompsa 394188412Sthompsa ue->ue_methods->ue_stop(ue); 395188412Sthompsa} 396188412Sthompsa 397226709Syongarivoid 398226709Syongariuether_start(struct ifnet *ifp) 399226709Syongari{ 400226709Syongari 401226709Syongari ue_start(ifp); 402226709Syongari} 403226709Syongari 404188412Sthompsastatic void 405188412Sthompsaue_start(struct ifnet *ifp) 406188412Sthompsa{ 407192984Sthompsa struct usb_ether *ue = ifp->if_softc; 408188412Sthompsa 409188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 410188412Sthompsa return; 411188412Sthompsa 412188412Sthompsa UE_LOCK(ue); 413188412Sthompsa ue->ue_methods->ue_start(ue); 414188412Sthompsa UE_UNLOCK(ue); 415188412Sthompsa} 416188412Sthompsa 417188412Sthompsastatic void 418192984Sthompsaue_promisc_task(struct usb_proc_msg *_task) 419188412Sthompsa{ 420192984Sthompsa struct usb_ether_cfg_task *task = 421192984Sthompsa (struct usb_ether_cfg_task *)_task; 422192984Sthompsa struct usb_ether *ue = task->ue; 423188412Sthompsa 424188412Sthompsa ue->ue_methods->ue_setpromisc(ue); 425188412Sthompsa} 426188412Sthompsa 427188412Sthompsastatic void 428192984Sthompsaue_setmulti_task(struct usb_proc_msg *_task) 429188412Sthompsa{ 430192984Sthompsa struct usb_ether_cfg_task *task = 431192984Sthompsa (struct usb_ether_cfg_task *)_task; 432192984Sthompsa struct usb_ether *ue = task->ue; 433188412Sthompsa 434188412Sthompsa ue->ue_methods->ue_setmulti(ue); 435188412Sthompsa} 436188412Sthompsa 437226709Syongariint 438226709Syongariuether_ifmedia_upd(struct ifnet *ifp) 439226709Syongari{ 440226709Syongari 441226709Syongari return (ue_ifmedia_upd(ifp)); 442226709Syongari} 443226709Syongari 444188412Sthompsastatic int 445188412Sthompsaue_ifmedia_upd(struct ifnet *ifp) 446188412Sthompsa{ 447192984Sthompsa struct usb_ether *ue = ifp->if_softc; 448188412Sthompsa 449188412Sthompsa /* Defer to process context */ 450188412Sthompsa UE_LOCK(ue); 451188412Sthompsa ue_queue_command(ue, ue_ifmedia_task, 452188412Sthompsa &ue->ue_media_task[0].hdr, 453188412Sthompsa &ue->ue_media_task[1].hdr); 454188412Sthompsa UE_UNLOCK(ue); 455188412Sthompsa 456188412Sthompsa return (0); 457188412Sthompsa} 458188412Sthompsa 459188412Sthompsastatic void 460192984Sthompsaue_ifmedia_task(struct usb_proc_msg *_task) 461188412Sthompsa{ 462192984Sthompsa struct usb_ether_cfg_task *task = 463192984Sthompsa (struct usb_ether_cfg_task *)_task; 464192984Sthompsa struct usb_ether *ue = task->ue; 465188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 466188412Sthompsa 467188412Sthompsa ue->ue_methods->ue_mii_upd(ifp); 468188412Sthompsa} 469188412Sthompsa 470188412Sthompsastatic void 471188412Sthompsaue_watchdog(void *arg) 472188412Sthompsa{ 473192984Sthompsa struct usb_ether *ue = arg; 474188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 475188412Sthompsa 476188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 477188412Sthompsa return; 478188412Sthompsa 479188412Sthompsa ue_queue_command(ue, ue_tick_task, 480188412Sthompsa &ue->ue_tick_task[0].hdr, 481188412Sthompsa &ue->ue_tick_task[1].hdr); 482188412Sthompsa 483194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 484188412Sthompsa} 485188412Sthompsa 486188412Sthompsastatic void 487192984Sthompsaue_tick_task(struct usb_proc_msg *_task) 488188412Sthompsa{ 489192984Sthompsa struct usb_ether_cfg_task *task = 490192984Sthompsa (struct usb_ether_cfg_task *)_task; 491192984Sthompsa struct usb_ether *ue = task->ue; 492188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 493188412Sthompsa 494188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 495188412Sthompsa return; 496188412Sthompsa 497188412Sthompsa ue->ue_methods->ue_tick(ue); 498188412Sthompsa} 499188412Sthompsa 500188412Sthompsaint 501194228Sthompsauether_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 502188412Sthompsa{ 503192984Sthompsa struct usb_ether *ue = ifp->if_softc; 504188412Sthompsa struct ifreq *ifr = (struct ifreq *)data; 505188412Sthompsa struct mii_data *mii; 506188412Sthompsa int error = 0; 507188412Sthompsa 508188412Sthompsa switch (command) { 509188412Sthompsa case SIOCSIFFLAGS: 510188412Sthompsa UE_LOCK(ue); 511188412Sthompsa if (ifp->if_flags & IFF_UP) { 512188412Sthompsa if (ifp->if_drv_flags & IFF_DRV_RUNNING) 513188412Sthompsa ue_queue_command(ue, ue_promisc_task, 514188412Sthompsa &ue->ue_promisc_task[0].hdr, 515188412Sthompsa &ue->ue_promisc_task[1].hdr); 516188412Sthompsa else 517188412Sthompsa ue_queue_command(ue, ue_start_task, 518188412Sthompsa &ue->ue_sync_task[0].hdr, 519188412Sthompsa &ue->ue_sync_task[1].hdr); 520188412Sthompsa } else { 521188412Sthompsa ue_queue_command(ue, ue_stop_task, 522188412Sthompsa &ue->ue_sync_task[0].hdr, 523188412Sthompsa &ue->ue_sync_task[1].hdr); 524184610Salfred } 525188412Sthompsa UE_UNLOCK(ue); 526188412Sthompsa break; 527188412Sthompsa case SIOCADDMULTI: 528188412Sthompsa case SIOCDELMULTI: 529188412Sthompsa UE_LOCK(ue); 530188412Sthompsa ue_queue_command(ue, ue_setmulti_task, 531188412Sthompsa &ue->ue_multi_task[0].hdr, 532188412Sthompsa &ue->ue_multi_task[1].hdr); 533188412Sthompsa UE_UNLOCK(ue); 534188412Sthompsa break; 535188412Sthompsa case SIOCGIFMEDIA: 536188412Sthompsa case SIOCSIFMEDIA: 537188412Sthompsa if (ue->ue_miibus != NULL) { 538188412Sthompsa mii = device_get_softc(ue->ue_miibus); 539188412Sthompsa error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 540188412Sthompsa } else 541188412Sthompsa error = ether_ioctl(ifp, command, data); 542188412Sthompsa break; 543188412Sthompsa default: 544188412Sthompsa error = ether_ioctl(ifp, command, data); 545188412Sthompsa break; 546184610Salfred } 547188412Sthompsa return (error); 548184610Salfred} 549188412Sthompsa 550188412Sthompsastatic int 551194228Sthompsauether_modevent(module_t mod, int type, void *data) 552188412Sthompsa{ 553188412Sthompsa 554188412Sthompsa switch (type) { 555188412Sthompsa case MOD_LOAD: 556188412Sthompsa ueunit = new_unrhdr(0, INT_MAX, NULL); 557188412Sthompsa break; 558188412Sthompsa case MOD_UNLOAD: 559188412Sthompsa break; 560188412Sthompsa default: 561188412Sthompsa return (EOPNOTSUPP); 562188412Sthompsa } 563188412Sthompsa return (0); 564188412Sthompsa} 565194228Sthompsastatic moduledata_t uether_mod = { 566188942Sthompsa "uether", 567194228Sthompsa uether_modevent, 568241394Skevlo 0 569188412Sthompsa}; 570188412Sthompsa 571189528Sthompsastruct mbuf * 572194228Sthompsauether_newbuf(void) 573189528Sthompsa{ 574189528Sthompsa struct mbuf *m_new; 575189528Sthompsa 576243857Sglebius m_new = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 577189528Sthompsa if (m_new == NULL) 578189528Sthompsa return (NULL); 579189528Sthompsa m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 580189528Sthompsa 581189528Sthompsa m_adj(m_new, ETHER_ALIGN); 582189528Sthompsa return (m_new); 583189528Sthompsa} 584189528Sthompsa 585188412Sthompsaint 586194228Sthompsauether_rxmbuf(struct usb_ether *ue, struct mbuf *m, 587188412Sthompsa unsigned int len) 588188412Sthompsa{ 589188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 590188412Sthompsa 591188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 592188412Sthompsa 593188412Sthompsa /* finalize mbuf */ 594271832Sglebius if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 595188412Sthompsa m->m_pkthdr.rcvif = ifp; 596188412Sthompsa m->m_pkthdr.len = m->m_len = len; 597188412Sthompsa 598188412Sthompsa /* enqueue for later when the lock can be released */ 599188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 600188412Sthompsa return (0); 601188412Sthompsa} 602188412Sthompsa 603188412Sthompsaint 604194228Sthompsauether_rxbuf(struct usb_ether *ue, struct usb_page_cache *pc, 605188412Sthompsa unsigned int offset, unsigned int len) 606188412Sthompsa{ 607188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 608188412Sthompsa struct mbuf *m; 609188412Sthompsa 610188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 611188412Sthompsa 612189528Sthompsa if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) 613188412Sthompsa return (1); 614188412Sthompsa 615194228Sthompsa m = uether_newbuf(); 616188412Sthompsa if (m == NULL) { 617271832Sglebius if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 618188412Sthompsa return (ENOMEM); 619188412Sthompsa } 620188412Sthompsa 621194228Sthompsa usbd_copy_out(pc, offset, mtod(m, uint8_t *), len); 622188412Sthompsa 623188412Sthompsa /* finalize mbuf */ 624271832Sglebius if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 625188412Sthompsa m->m_pkthdr.rcvif = ifp; 626188412Sthompsa m->m_pkthdr.len = m->m_len = len; 627188412Sthompsa 628188412Sthompsa /* enqueue for later when the lock can be released */ 629188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 630188412Sthompsa return (0); 631188412Sthompsa} 632188412Sthompsa 633188412Sthompsavoid 634194228Sthompsauether_rxflush(struct usb_ether *ue) 635188412Sthompsa{ 636188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 637188412Sthompsa struct mbuf *m; 638188412Sthompsa 639188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 640188412Sthompsa 641188412Sthompsa for (;;) { 642188412Sthompsa _IF_DEQUEUE(&ue->ue_rxq, m); 643188412Sthompsa if (m == NULL) 644188412Sthompsa break; 645188412Sthompsa 646188412Sthompsa /* 647188412Sthompsa * The USB xfer has been resubmitted so its safe to unlock now. 648188412Sthompsa */ 649188412Sthompsa UE_UNLOCK(ue); 650188412Sthompsa ifp->if_input(ifp, m); 651188412Sthompsa UE_LOCK(ue); 652188412Sthompsa } 653188412Sthompsa} 654188412Sthompsa 655302054Sbz/* 656302054Sbz * USB net drivers are run by DRIVER_MODULE() thus SI_SUB_DRIVERS, 657302054Sbz * SI_ORDER_MIDDLE. Run uether after that. 658302054Sbz */ 659302054SbzDECLARE_MODULE(uether, uether_mod, SI_SUB_DRIVERS, SI_ORDER_ANY); 660188942SthompsaMODULE_VERSION(uether, 1); 661