usb_ethernet.c revision 280008
1184610Salfred/* $FreeBSD: head/sys/dev/usb/net/usb_ethernet.c 280008 2015-03-14 21:40:33Z ian $ */ 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: head/sys/dev/usb/net/usb_ethernet.c 280008 2015-03-14 21:40:33Z ian $"); 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 191188412Sthompsastatic void 192192984Sthompsaue_attach_post_task(struct usb_proc_msg *_task) 193188412Sthompsa{ 194192984Sthompsa struct usb_ether_cfg_task *task = 195192984Sthompsa (struct usb_ether_cfg_task *)_task; 196192984Sthompsa struct usb_ether *ue = task->ue; 197188412Sthompsa struct ifnet *ifp; 198188412Sthompsa int error; 199188412Sthompsa char num[14]; /* sufficient for 32 bits */ 200188412Sthompsa 201188412Sthompsa /* first call driver's post attach routine */ 202188412Sthompsa ue->ue_methods->ue_attach_post(ue); 203188412Sthompsa 204188412Sthompsa UE_UNLOCK(ue); 205188412Sthompsa 206188412Sthompsa ue->ue_unit = alloc_unr(ueunit); 207194228Sthompsa usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0); 208188412Sthompsa sysctl_ctx_init(&ue->ue_sysctl_ctx); 209188412Sthompsa 210226709Syongari error = 0; 211262142Srodrigc CURVNET_SET_QUIET(vnet0); 212188412Sthompsa ifp = if_alloc(IFT_ETHER); 213184610Salfred if (ifp == NULL) { 214188412Sthompsa device_printf(ue->ue_dev, "could not allocate ifnet\n"); 215226709Syongari goto fail; 216184610Salfred } 217184610Salfred 218188412Sthompsa ifp->if_softc = ue; 219188412Sthompsa if_initname(ifp, "ue", ue->ue_unit); 220226709Syongari if (ue->ue_methods->ue_attach_post_sub != NULL) { 221226709Syongari ue->ue_ifp = ifp; 222226709Syongari error = ue->ue_methods->ue_attach_post_sub(ue); 223226709Syongari } else { 224226709Syongari ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 225226709Syongari if (ue->ue_methods->ue_ioctl != NULL) 226226709Syongari ifp->if_ioctl = ue->ue_methods->ue_ioctl; 227226709Syongari else 228226709Syongari ifp->if_ioctl = uether_ioctl; 229226709Syongari ifp->if_start = ue_start; 230226709Syongari ifp->if_init = ue_init; 231226709Syongari IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 232226709Syongari ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 233226709Syongari IFQ_SET_READY(&ifp->if_snd); 234226709Syongari ue->ue_ifp = ifp; 235184610Salfred 236226709Syongari if (ue->ue_methods->ue_mii_upd != NULL && 237226709Syongari ue->ue_methods->ue_mii_sts != NULL) { 238226709Syongari /* device_xxx() depends on this */ 239226709Syongari mtx_lock(&Giant); 240226709Syongari error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp, 241226709Syongari ue_ifmedia_upd, ue->ue_methods->ue_mii_sts, 242226709Syongari BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0); 243226709Syongari mtx_unlock(&Giant); 244188412Sthompsa } 245188412Sthompsa } 246184610Salfred 247226709Syongari if (error) { 248226709Syongari device_printf(ue->ue_dev, "attaching PHYs failed\n"); 249226709Syongari goto fail; 250226709Syongari } 251226709Syongari 252188412Sthompsa if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev)); 253188412Sthompsa ether_ifattach(ifp, ue->ue_eaddr); 254226709Syongari /* Tell upper layer we support VLAN oversized frames. */ 255226709Syongari if (ifp->if_capabilities & IFCAP_VLAN_MTU) 256226709Syongari ifp->if_hdrlen = sizeof(struct ether_vlan_header); 257188412Sthompsa 258262142Srodrigc CURVNET_RESTORE(); 259262142Srodrigc 260188412Sthompsa snprintf(num, sizeof(num), "%u", ue->ue_unit); 261188412Sthompsa ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx, 262188412Sthompsa &SYSCTL_NODE_CHILDREN(_net, ue), 263188412Sthompsa OID_AUTO, num, CTLFLAG_RD, NULL, ""); 264188412Sthompsa SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx, 265188412Sthompsa SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO, 266217556Smdf "%parent", CTLTYPE_STRING | CTLFLAG_RD, ue, 0, 267188412Sthompsa ue_sysctl_parent, "A", "parent device"); 268188412Sthompsa 269188412Sthompsa UE_LOCK(ue); 270188412Sthompsa return; 271188412Sthompsa 272226709Syongarifail: 273262142Srodrigc CURVNET_RESTORE(); 274188412Sthompsa free_unr(ueunit, ue->ue_unit); 275188412Sthompsa if (ue->ue_ifp != NULL) { 276188412Sthompsa if_free(ue->ue_ifp); 277188412Sthompsa ue->ue_ifp = NULL; 278184610Salfred } 279188412Sthompsa UE_LOCK(ue); 280188412Sthompsa return; 281188412Sthompsa} 282184610Salfred 283188412Sthompsavoid 284194228Sthompsauether_ifdetach(struct usb_ether *ue) 285188412Sthompsa{ 286188412Sthompsa struct ifnet *ifp; 287184610Salfred 288188412Sthompsa /* wait for any post attach or other command to complete */ 289194228Sthompsa usb_proc_drain(&ue->ue_tq); 290184610Salfred 291188412Sthompsa /* read "ifnet" pointer after taskqueue drain */ 292188412Sthompsa ifp = ue->ue_ifp; 293184610Salfred 294188412Sthompsa if (ifp != NULL) { 295184610Salfred 296188412Sthompsa /* we are not running any more */ 297188412Sthompsa UE_LOCK(ue); 298188412Sthompsa ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 299188412Sthompsa UE_UNLOCK(ue); 300184610Salfred 301188412Sthompsa /* drain any callouts */ 302194228Sthompsa usb_callout_drain(&ue->ue_watchdog); 303188412Sthompsa 304188412Sthompsa /* detach miibus */ 305188412Sthompsa if (ue->ue_miibus != NULL) { 306196403Sjhb mtx_lock(&Giant); /* device_xxx() depends on this */ 307188412Sthompsa device_delete_child(ue->ue_dev, ue->ue_miibus); 308196403Sjhb mtx_unlock(&Giant); 309184610Salfred } 310184610Salfred 311188412Sthompsa /* detach ethernet */ 312188412Sthompsa ether_ifdetach(ifp); 313184610Salfred 314188412Sthompsa /* free interface instance */ 315188412Sthompsa if_free(ifp); 316188412Sthompsa 317188412Sthompsa /* free sysctl */ 318188412Sthompsa sysctl_ctx_free(&ue->ue_sysctl_ctx); 319188412Sthompsa 320188412Sthompsa /* free unit */ 321188412Sthompsa free_unr(ueunit, ue->ue_unit); 322188412Sthompsa } 323188412Sthompsa 324188412Sthompsa /* free taskqueue, if any */ 325194228Sthompsa usb_proc_free(&ue->ue_tq); 326188412Sthompsa} 327188412Sthompsa 328188412Sthompsauint8_t 329194228Sthompsauether_is_gone(struct usb_ether *ue) 330188412Sthompsa{ 331194228Sthompsa return (usb_proc_is_gone(&ue->ue_tq)); 332188412Sthompsa} 333188412Sthompsa 334226709Syongarivoid 335226709Syongariuether_init(void *arg) 336226709Syongari{ 337226709Syongari 338226709Syongari ue_init(arg); 339226709Syongari} 340226709Syongari 341188412Sthompsastatic void 342188412Sthompsaue_init(void *arg) 343188412Sthompsa{ 344192984Sthompsa struct usb_ether *ue = arg; 345188412Sthompsa 346188412Sthompsa UE_LOCK(ue); 347188412Sthompsa ue_queue_command(ue, ue_start_task, 348188412Sthompsa &ue->ue_sync_task[0].hdr, 349188412Sthompsa &ue->ue_sync_task[1].hdr); 350188412Sthompsa UE_UNLOCK(ue); 351188412Sthompsa} 352188412Sthompsa 353188412Sthompsastatic void 354192984Sthompsaue_start_task(struct usb_proc_msg *_task) 355188412Sthompsa{ 356192984Sthompsa struct usb_ether_cfg_task *task = 357192984Sthompsa (struct usb_ether_cfg_task *)_task; 358192984Sthompsa struct usb_ether *ue = task->ue; 359188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 360188412Sthompsa 361188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 362188412Sthompsa 363188412Sthompsa ue->ue_methods->ue_init(ue); 364188412Sthompsa 365188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 366188412Sthompsa return; 367188412Sthompsa 368188412Sthompsa if (ue->ue_methods->ue_tick != NULL) 369194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 370188412Sthompsa} 371188412Sthompsa 372188412Sthompsastatic void 373192984Sthompsaue_stop_task(struct usb_proc_msg *_task) 374188412Sthompsa{ 375192984Sthompsa struct usb_ether_cfg_task *task = 376192984Sthompsa (struct usb_ether_cfg_task *)_task; 377192984Sthompsa struct usb_ether *ue = task->ue; 378188412Sthompsa 379188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 380188412Sthompsa 381194228Sthompsa usb_callout_stop(&ue->ue_watchdog); 382188412Sthompsa 383188412Sthompsa ue->ue_methods->ue_stop(ue); 384188412Sthompsa} 385188412Sthompsa 386226709Syongarivoid 387226709Syongariuether_start(struct ifnet *ifp) 388226709Syongari{ 389226709Syongari 390226709Syongari ue_start(ifp); 391226709Syongari} 392226709Syongari 393188412Sthompsastatic void 394188412Sthompsaue_start(struct ifnet *ifp) 395188412Sthompsa{ 396192984Sthompsa struct usb_ether *ue = ifp->if_softc; 397188412Sthompsa 398188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 399188412Sthompsa return; 400188412Sthompsa 401188412Sthompsa UE_LOCK(ue); 402188412Sthompsa ue->ue_methods->ue_start(ue); 403188412Sthompsa UE_UNLOCK(ue); 404188412Sthompsa} 405188412Sthompsa 406188412Sthompsastatic void 407192984Sthompsaue_promisc_task(struct usb_proc_msg *_task) 408188412Sthompsa{ 409192984Sthompsa struct usb_ether_cfg_task *task = 410192984Sthompsa (struct usb_ether_cfg_task *)_task; 411192984Sthompsa struct usb_ether *ue = task->ue; 412188412Sthompsa 413188412Sthompsa ue->ue_methods->ue_setpromisc(ue); 414188412Sthompsa} 415188412Sthompsa 416188412Sthompsastatic void 417192984Sthompsaue_setmulti_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_setmulti(ue); 424188412Sthompsa} 425188412Sthompsa 426226709Syongariint 427226709Syongariuether_ifmedia_upd(struct ifnet *ifp) 428226709Syongari{ 429226709Syongari 430226709Syongari return (ue_ifmedia_upd(ifp)); 431226709Syongari} 432226709Syongari 433188412Sthompsastatic int 434188412Sthompsaue_ifmedia_upd(struct ifnet *ifp) 435188412Sthompsa{ 436192984Sthompsa struct usb_ether *ue = ifp->if_softc; 437188412Sthompsa 438188412Sthompsa /* Defer to process context */ 439188412Sthompsa UE_LOCK(ue); 440188412Sthompsa ue_queue_command(ue, ue_ifmedia_task, 441188412Sthompsa &ue->ue_media_task[0].hdr, 442188412Sthompsa &ue->ue_media_task[1].hdr); 443188412Sthompsa UE_UNLOCK(ue); 444188412Sthompsa 445188412Sthompsa return (0); 446188412Sthompsa} 447188412Sthompsa 448188412Sthompsastatic void 449192984Sthompsaue_ifmedia_task(struct usb_proc_msg *_task) 450188412Sthompsa{ 451192984Sthompsa struct usb_ether_cfg_task *task = 452192984Sthompsa (struct usb_ether_cfg_task *)_task; 453192984Sthompsa struct usb_ether *ue = task->ue; 454188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 455188412Sthompsa 456188412Sthompsa ue->ue_methods->ue_mii_upd(ifp); 457188412Sthompsa} 458188412Sthompsa 459188412Sthompsastatic void 460188412Sthompsaue_watchdog(void *arg) 461188412Sthompsa{ 462192984Sthompsa struct usb_ether *ue = arg; 463188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 464188412Sthompsa 465188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 466188412Sthompsa return; 467188412Sthompsa 468188412Sthompsa ue_queue_command(ue, ue_tick_task, 469188412Sthompsa &ue->ue_tick_task[0].hdr, 470188412Sthompsa &ue->ue_tick_task[1].hdr); 471188412Sthompsa 472194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 473188412Sthompsa} 474188412Sthompsa 475188412Sthompsastatic void 476192984Sthompsaue_tick_task(struct usb_proc_msg *_task) 477188412Sthompsa{ 478192984Sthompsa struct usb_ether_cfg_task *task = 479192984Sthompsa (struct usb_ether_cfg_task *)_task; 480192984Sthompsa struct usb_ether *ue = task->ue; 481188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 482188412Sthompsa 483188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 484188412Sthompsa return; 485188412Sthompsa 486188412Sthompsa ue->ue_methods->ue_tick(ue); 487188412Sthompsa} 488188412Sthompsa 489188412Sthompsaint 490194228Sthompsauether_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 491188412Sthompsa{ 492192984Sthompsa struct usb_ether *ue = ifp->if_softc; 493188412Sthompsa struct ifreq *ifr = (struct ifreq *)data; 494188412Sthompsa struct mii_data *mii; 495188412Sthompsa int error = 0; 496188412Sthompsa 497188412Sthompsa switch (command) { 498188412Sthompsa case SIOCSIFFLAGS: 499188412Sthompsa UE_LOCK(ue); 500188412Sthompsa if (ifp->if_flags & IFF_UP) { 501188412Sthompsa if (ifp->if_drv_flags & IFF_DRV_RUNNING) 502188412Sthompsa ue_queue_command(ue, ue_promisc_task, 503188412Sthompsa &ue->ue_promisc_task[0].hdr, 504188412Sthompsa &ue->ue_promisc_task[1].hdr); 505188412Sthompsa else 506188412Sthompsa ue_queue_command(ue, ue_start_task, 507188412Sthompsa &ue->ue_sync_task[0].hdr, 508188412Sthompsa &ue->ue_sync_task[1].hdr); 509188412Sthompsa } else { 510188412Sthompsa ue_queue_command(ue, ue_stop_task, 511188412Sthompsa &ue->ue_sync_task[0].hdr, 512188412Sthompsa &ue->ue_sync_task[1].hdr); 513184610Salfred } 514188412Sthompsa UE_UNLOCK(ue); 515188412Sthompsa break; 516188412Sthompsa case SIOCADDMULTI: 517188412Sthompsa case SIOCDELMULTI: 518188412Sthompsa UE_LOCK(ue); 519188412Sthompsa ue_queue_command(ue, ue_setmulti_task, 520188412Sthompsa &ue->ue_multi_task[0].hdr, 521188412Sthompsa &ue->ue_multi_task[1].hdr); 522188412Sthompsa UE_UNLOCK(ue); 523188412Sthompsa break; 524188412Sthompsa case SIOCGIFMEDIA: 525188412Sthompsa case SIOCSIFMEDIA: 526188412Sthompsa if (ue->ue_miibus != NULL) { 527188412Sthompsa mii = device_get_softc(ue->ue_miibus); 528188412Sthompsa error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 529188412Sthompsa } else 530188412Sthompsa error = ether_ioctl(ifp, command, data); 531188412Sthompsa break; 532188412Sthompsa default: 533188412Sthompsa error = ether_ioctl(ifp, command, data); 534188412Sthompsa break; 535184610Salfred } 536188412Sthompsa return (error); 537184610Salfred} 538188412Sthompsa 539188412Sthompsastatic int 540194228Sthompsauether_modevent(module_t mod, int type, void *data) 541188412Sthompsa{ 542188412Sthompsa 543188412Sthompsa switch (type) { 544188412Sthompsa case MOD_LOAD: 545188412Sthompsa ueunit = new_unrhdr(0, INT_MAX, NULL); 546188412Sthompsa break; 547188412Sthompsa case MOD_UNLOAD: 548188412Sthompsa break; 549188412Sthompsa default: 550188412Sthompsa return (EOPNOTSUPP); 551188412Sthompsa } 552188412Sthompsa return (0); 553188412Sthompsa} 554194228Sthompsastatic moduledata_t uether_mod = { 555188942Sthompsa "uether", 556194228Sthompsa uether_modevent, 557241394Skevlo 0 558188412Sthompsa}; 559188412Sthompsa 560189528Sthompsastruct mbuf * 561194228Sthompsauether_newbuf(void) 562189528Sthompsa{ 563189528Sthompsa struct mbuf *m_new; 564189528Sthompsa 565243857Sglebius m_new = m_getcl(M_NOWAIT, MT_DATA, M_PKTHDR); 566189528Sthompsa if (m_new == NULL) 567189528Sthompsa return (NULL); 568189528Sthompsa m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 569189528Sthompsa 570189528Sthompsa m_adj(m_new, ETHER_ALIGN); 571189528Sthompsa return (m_new); 572189528Sthompsa} 573189528Sthompsa 574188412Sthompsaint 575194228Sthompsauether_rxmbuf(struct usb_ether *ue, struct mbuf *m, 576188412Sthompsa unsigned int len) 577188412Sthompsa{ 578188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 579188412Sthompsa 580188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 581188412Sthompsa 582188412Sthompsa /* finalize mbuf */ 583271832Sglebius if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 584188412Sthompsa m->m_pkthdr.rcvif = ifp; 585188412Sthompsa m->m_pkthdr.len = m->m_len = len; 586188412Sthompsa 587188412Sthompsa /* enqueue for later when the lock can be released */ 588188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 589188412Sthompsa return (0); 590188412Sthompsa} 591188412Sthompsa 592188412Sthompsaint 593194228Sthompsauether_rxbuf(struct usb_ether *ue, struct usb_page_cache *pc, 594188412Sthompsa unsigned int offset, unsigned int len) 595188412Sthompsa{ 596188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 597188412Sthompsa struct mbuf *m; 598188412Sthompsa 599188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 600188412Sthompsa 601189528Sthompsa if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) 602188412Sthompsa return (1); 603188412Sthompsa 604194228Sthompsa m = uether_newbuf(); 605188412Sthompsa if (m == NULL) { 606271832Sglebius if_inc_counter(ifp, IFCOUNTER_IQDROPS, 1); 607188412Sthompsa return (ENOMEM); 608188412Sthompsa } 609188412Sthompsa 610194228Sthompsa usbd_copy_out(pc, offset, mtod(m, uint8_t *), len); 611188412Sthompsa 612188412Sthompsa /* finalize mbuf */ 613271832Sglebius if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1); 614188412Sthompsa m->m_pkthdr.rcvif = ifp; 615188412Sthompsa m->m_pkthdr.len = m->m_len = len; 616188412Sthompsa 617188412Sthompsa /* enqueue for later when the lock can be released */ 618188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 619188412Sthompsa return (0); 620188412Sthompsa} 621188412Sthompsa 622188412Sthompsavoid 623194228Sthompsauether_rxflush(struct usb_ether *ue) 624188412Sthompsa{ 625188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 626188412Sthompsa struct mbuf *m; 627188412Sthompsa 628188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 629188412Sthompsa 630188412Sthompsa for (;;) { 631188412Sthompsa _IF_DEQUEUE(&ue->ue_rxq, m); 632188412Sthompsa if (m == NULL) 633188412Sthompsa break; 634188412Sthompsa 635188412Sthompsa /* 636188412Sthompsa * The USB xfer has been resubmitted so its safe to unlock now. 637188412Sthompsa */ 638188412Sthompsa UE_UNLOCK(ue); 639188412Sthompsa ifp->if_input(ifp, m); 640188412Sthompsa UE_LOCK(ue); 641188412Sthompsa } 642188412Sthompsa} 643188412Sthompsa 644194228SthompsaDECLARE_MODULE(uether, uether_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 645188942SthompsaMODULE_VERSION(uether, 1); 646