usb_ethernet.c revision 226709
1184610Salfred/* $FreeBSD: head/sys/dev/usb/net/usb_ethernet.c 226709 2011-10-24 23:38:11Z yongari $ */ 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 226709 2011-10-24 23:38:11Z yongari $"); 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 60188412SthompsaSYSCTL_NODE(_net, OID_AUTO, ue, CTLFLAG_RD, 0, "USB Ethernet parameters"); 61184610Salfred 62188412Sthompsa#define UE_LOCK(_ue) mtx_lock((_ue)->ue_mtx) 63188412Sthompsa#define UE_UNLOCK(_ue) mtx_unlock((_ue)->ue_mtx) 64188412Sthompsa#define UE_LOCK_ASSERT(_ue, t) mtx_assert((_ue)->ue_mtx, t) 65188412Sthompsa 66188942SthompsaMODULE_DEPEND(uether, usb, 1, 1, 1); 67188942SthompsaMODULE_DEPEND(uether, miibus, 1, 1, 1); 68188552Sthompsa 69188412Sthompsastatic struct unrhdr *ueunit; 70188412Sthompsa 71193045Sthompsastatic usb_proc_callback_t ue_attach_post_task; 72193045Sthompsastatic usb_proc_callback_t ue_promisc_task; 73193045Sthompsastatic usb_proc_callback_t ue_setmulti_task; 74193045Sthompsastatic usb_proc_callback_t ue_ifmedia_task; 75193045Sthompsastatic usb_proc_callback_t ue_tick_task; 76193045Sthompsastatic usb_proc_callback_t ue_start_task; 77193045Sthompsastatic usb_proc_callback_t ue_stop_task; 78188412Sthompsa 79188412Sthompsastatic void ue_init(void *); 80188412Sthompsastatic void ue_start(struct ifnet *); 81188412Sthompsastatic int ue_ifmedia_upd(struct ifnet *); 82188412Sthompsastatic void ue_watchdog(void *); 83188412Sthompsa 84188412Sthompsa/* 85188412Sthompsa * Return values: 86188412Sthompsa * 0: success 87188412Sthompsa * Else: device has been detached 88188412Sthompsa */ 89188412Sthompsauint8_t 90194228Sthompsauether_pause(struct usb_ether *ue, unsigned int _ticks) 91184610Salfred{ 92194228Sthompsa if (usb_proc_is_gone(&ue->ue_tq)) { 93188412Sthompsa /* nothing to do */ 94188412Sthompsa return (1); 95188412Sthompsa } 96194228Sthompsa usb_pause_mtx(ue->ue_mtx, _ticks); 97188412Sthompsa return (0); 98188412Sthompsa} 99184610Salfred 100188412Sthompsastatic void 101192984Sthompsaue_queue_command(struct usb_ether *ue, 102193045Sthompsa usb_proc_callback_t *fn, 103192984Sthompsa struct usb_proc_msg *t0, struct usb_proc_msg *t1) 104188412Sthompsa{ 105192984Sthompsa struct usb_ether_cfg_task *task; 106188412Sthompsa 107188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 108188412Sthompsa 109194228Sthompsa if (usb_proc_is_gone(&ue->ue_tq)) { 110188412Sthompsa return; /* nothing to do */ 111184610Salfred } 112188412Sthompsa /* 113188412Sthompsa * NOTE: The task cannot get executed before we drop the 114188412Sthompsa * "sc_mtx" mutex. It is safe to update fields in the message 115188412Sthompsa * structure after that the message got queued. 116188412Sthompsa */ 117192984Sthompsa task = (struct usb_ether_cfg_task *) 118194228Sthompsa usb_proc_msignal(&ue->ue_tq, t0, t1); 119188412Sthompsa 120188412Sthompsa /* Setup callback and self pointers */ 121188412Sthompsa task->hdr.pm_callback = fn; 122188412Sthompsa task->ue = ue; 123188412Sthompsa 124188412Sthompsa /* 125188412Sthompsa * Start and stop must be synchronous! 126188412Sthompsa */ 127188412Sthompsa if ((fn == ue_start_task) || (fn == ue_stop_task)) 128194228Sthompsa usb_proc_mwait(&ue->ue_tq, t0, t1); 129184610Salfred} 130184610Salfred 131188412Sthompsastruct ifnet * 132194228Sthompsauether_getifp(struct usb_ether *ue) 133184610Salfred{ 134188412Sthompsa return (ue->ue_ifp); 135188412Sthompsa} 136184610Salfred 137188412Sthompsastruct mii_data * 138194228Sthompsauether_getmii(struct usb_ether *ue) 139188412Sthompsa{ 140188412Sthompsa return (device_get_softc(ue->ue_miibus)); 141188412Sthompsa} 142188412Sthompsa 143188412Sthompsavoid * 144194228Sthompsauether_getsc(struct usb_ether *ue) 145188412Sthompsa{ 146188412Sthompsa return (ue->ue_sc); 147188412Sthompsa} 148188412Sthompsa 149188412Sthompsastatic int 150188412Sthompsaue_sysctl_parent(SYSCTL_HANDLER_ARGS) 151188412Sthompsa{ 152192984Sthompsa struct usb_ether *ue = arg1; 153188412Sthompsa const char *name; 154188412Sthompsa 155188412Sthompsa name = device_get_nameunit(ue->ue_dev); 156188412Sthompsa return SYSCTL_OUT(req, name, strlen(name)); 157188412Sthompsa} 158188412Sthompsa 159188412Sthompsaint 160194228Sthompsauether_ifattach(struct usb_ether *ue) 161188412Sthompsa{ 162188412Sthompsa int error; 163188412Sthompsa 164188412Sthompsa /* check some critical parameters */ 165188412Sthompsa if ((ue->ue_dev == NULL) || 166188412Sthompsa (ue->ue_udev == NULL) || 167188412Sthompsa (ue->ue_mtx == NULL) || 168188412Sthompsa (ue->ue_methods == NULL)) 169188412Sthompsa return (EINVAL); 170188412Sthompsa 171194228Sthompsa error = usb_proc_create(&ue->ue_tq, ue->ue_mtx, 172188412Sthompsa device_get_nameunit(ue->ue_dev), USB_PRI_MED); 173188412Sthompsa if (error) { 174188412Sthompsa device_printf(ue->ue_dev, "could not setup taskqueue\n"); 175188412Sthompsa goto error; 176188412Sthompsa } 177188412Sthompsa 178188412Sthompsa /* fork rest of the attach code */ 179188412Sthompsa UE_LOCK(ue); 180188412Sthompsa ue_queue_command(ue, ue_attach_post_task, 181188412Sthompsa &ue->ue_sync_task[0].hdr, 182188412Sthompsa &ue->ue_sync_task[1].hdr); 183188412Sthompsa UE_UNLOCK(ue); 184188412Sthompsa 185188412Sthompsaerror: 186188412Sthompsa return (error); 187188412Sthompsa} 188188412Sthompsa 189188412Sthompsastatic void 190192984Sthompsaue_attach_post_task(struct usb_proc_msg *_task) 191188412Sthompsa{ 192192984Sthompsa struct usb_ether_cfg_task *task = 193192984Sthompsa (struct usb_ether_cfg_task *)_task; 194192984Sthompsa struct usb_ether *ue = task->ue; 195188412Sthompsa struct ifnet *ifp; 196188412Sthompsa int error; 197188412Sthompsa char num[14]; /* sufficient for 32 bits */ 198188412Sthompsa 199188412Sthompsa /* first call driver's post attach routine */ 200188412Sthompsa ue->ue_methods->ue_attach_post(ue); 201188412Sthompsa 202188412Sthompsa UE_UNLOCK(ue); 203188412Sthompsa 204188412Sthompsa ue->ue_unit = alloc_unr(ueunit); 205194228Sthompsa usb_callout_init_mtx(&ue->ue_watchdog, ue->ue_mtx, 0); 206188412Sthompsa sysctl_ctx_init(&ue->ue_sysctl_ctx); 207188412Sthompsa 208226709Syongari error = 0; 209188412Sthompsa ifp = if_alloc(IFT_ETHER); 210184610Salfred if (ifp == NULL) { 211188412Sthompsa device_printf(ue->ue_dev, "could not allocate ifnet\n"); 212226709Syongari goto fail; 213184610Salfred } 214184610Salfred 215188412Sthompsa ifp->if_softc = ue; 216188412Sthompsa if_initname(ifp, "ue", ue->ue_unit); 217226709Syongari if (ue->ue_methods->ue_attach_post_sub != NULL) { 218226709Syongari ue->ue_ifp = ifp; 219226709Syongari error = ue->ue_methods->ue_attach_post_sub(ue); 220226709Syongari } else { 221226709Syongari ifp->if_mtu = ETHERMTU; 222226709Syongari ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; 223226709Syongari if (ue->ue_methods->ue_ioctl != NULL) 224226709Syongari ifp->if_ioctl = ue->ue_methods->ue_ioctl; 225226709Syongari else 226226709Syongari ifp->if_ioctl = uether_ioctl; 227226709Syongari ifp->if_start = ue_start; 228226709Syongari ifp->if_init = ue_init; 229226709Syongari IFQ_SET_MAXLEN(&ifp->if_snd, ifqmaxlen); 230226709Syongari ifp->if_snd.ifq_drv_maxlen = ifqmaxlen; 231226709Syongari IFQ_SET_READY(&ifp->if_snd); 232226709Syongari ue->ue_ifp = ifp; 233184610Salfred 234226709Syongari if (ue->ue_methods->ue_mii_upd != NULL && 235226709Syongari ue->ue_methods->ue_mii_sts != NULL) { 236226709Syongari /* device_xxx() depends on this */ 237226709Syongari mtx_lock(&Giant); 238226709Syongari error = mii_attach(ue->ue_dev, &ue->ue_miibus, ifp, 239226709Syongari ue_ifmedia_upd, ue->ue_methods->ue_mii_sts, 240226709Syongari BMSR_DEFCAPMASK, MII_PHY_ANY, MII_OFFSET_ANY, 0); 241226709Syongari mtx_unlock(&Giant); 242188412Sthompsa } 243188412Sthompsa } 244184610Salfred 245226709Syongari if (error) { 246226709Syongari device_printf(ue->ue_dev, "attaching PHYs failed\n"); 247226709Syongari goto fail; 248226709Syongari } 249226709Syongari 250188412Sthompsa if_printf(ifp, "<USB Ethernet> on %s\n", device_get_nameunit(ue->ue_dev)); 251188412Sthompsa ether_ifattach(ifp, ue->ue_eaddr); 252226709Syongari /* Tell upper layer we support VLAN oversized frames. */ 253226709Syongari if (ifp->if_capabilities & IFCAP_VLAN_MTU) 254226709Syongari ifp->if_hdrlen = sizeof(struct ether_vlan_header); 255188412Sthompsa 256188412Sthompsa snprintf(num, sizeof(num), "%u", ue->ue_unit); 257188412Sthompsa ue->ue_sysctl_oid = SYSCTL_ADD_NODE(&ue->ue_sysctl_ctx, 258188412Sthompsa &SYSCTL_NODE_CHILDREN(_net, ue), 259188412Sthompsa OID_AUTO, num, CTLFLAG_RD, NULL, ""); 260188412Sthompsa SYSCTL_ADD_PROC(&ue->ue_sysctl_ctx, 261188412Sthompsa SYSCTL_CHILDREN(ue->ue_sysctl_oid), OID_AUTO, 262217556Smdf "%parent", CTLTYPE_STRING | CTLFLAG_RD, ue, 0, 263188412Sthompsa ue_sysctl_parent, "A", "parent device"); 264188412Sthompsa 265188412Sthompsa UE_LOCK(ue); 266188412Sthompsa return; 267188412Sthompsa 268226709Syongarifail: 269188412Sthompsa free_unr(ueunit, ue->ue_unit); 270188412Sthompsa if (ue->ue_ifp != NULL) { 271188412Sthompsa if_free(ue->ue_ifp); 272188412Sthompsa ue->ue_ifp = NULL; 273184610Salfred } 274188412Sthompsa UE_LOCK(ue); 275188412Sthompsa return; 276188412Sthompsa} 277184610Salfred 278188412Sthompsavoid 279194228Sthompsauether_ifdetach(struct usb_ether *ue) 280188412Sthompsa{ 281188412Sthompsa struct ifnet *ifp; 282184610Salfred 283188412Sthompsa /* wait for any post attach or other command to complete */ 284194228Sthompsa usb_proc_drain(&ue->ue_tq); 285184610Salfred 286188412Sthompsa /* read "ifnet" pointer after taskqueue drain */ 287188412Sthompsa ifp = ue->ue_ifp; 288184610Salfred 289188412Sthompsa if (ifp != NULL) { 290184610Salfred 291188412Sthompsa /* we are not running any more */ 292188412Sthompsa UE_LOCK(ue); 293188412Sthompsa ifp->if_drv_flags &= ~IFF_DRV_RUNNING; 294188412Sthompsa UE_UNLOCK(ue); 295184610Salfred 296188412Sthompsa /* drain any callouts */ 297194228Sthompsa usb_callout_drain(&ue->ue_watchdog); 298188412Sthompsa 299188412Sthompsa /* detach miibus */ 300188412Sthompsa if (ue->ue_miibus != NULL) { 301196403Sjhb mtx_lock(&Giant); /* device_xxx() depends on this */ 302188412Sthompsa device_delete_child(ue->ue_dev, ue->ue_miibus); 303196403Sjhb mtx_unlock(&Giant); 304184610Salfred } 305184610Salfred 306188412Sthompsa /* detach ethernet */ 307188412Sthompsa ether_ifdetach(ifp); 308184610Salfred 309188412Sthompsa /* free interface instance */ 310188412Sthompsa if_free(ifp); 311188412Sthompsa 312188412Sthompsa /* free sysctl */ 313188412Sthompsa sysctl_ctx_free(&ue->ue_sysctl_ctx); 314188412Sthompsa 315188412Sthompsa /* free unit */ 316188412Sthompsa free_unr(ueunit, ue->ue_unit); 317188412Sthompsa } 318188412Sthompsa 319188412Sthompsa /* free taskqueue, if any */ 320194228Sthompsa usb_proc_free(&ue->ue_tq); 321188412Sthompsa} 322188412Sthompsa 323188412Sthompsauint8_t 324194228Sthompsauether_is_gone(struct usb_ether *ue) 325188412Sthompsa{ 326194228Sthompsa return (usb_proc_is_gone(&ue->ue_tq)); 327188412Sthompsa} 328188412Sthompsa 329226709Syongarivoid 330226709Syongariuether_init(void *arg) 331226709Syongari{ 332226709Syongari 333226709Syongari ue_init(arg); 334226709Syongari} 335226709Syongari 336188412Sthompsastatic void 337188412Sthompsaue_init(void *arg) 338188412Sthompsa{ 339192984Sthompsa struct usb_ether *ue = arg; 340188412Sthompsa 341188412Sthompsa UE_LOCK(ue); 342188412Sthompsa ue_queue_command(ue, ue_start_task, 343188412Sthompsa &ue->ue_sync_task[0].hdr, 344188412Sthompsa &ue->ue_sync_task[1].hdr); 345188412Sthompsa UE_UNLOCK(ue); 346188412Sthompsa} 347188412Sthompsa 348188412Sthompsastatic void 349192984Sthompsaue_start_task(struct usb_proc_msg *_task) 350188412Sthompsa{ 351192984Sthompsa struct usb_ether_cfg_task *task = 352192984Sthompsa (struct usb_ether_cfg_task *)_task; 353192984Sthompsa struct usb_ether *ue = task->ue; 354188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 355188412Sthompsa 356188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 357188412Sthompsa 358188412Sthompsa ue->ue_methods->ue_init(ue); 359188412Sthompsa 360188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 361188412Sthompsa return; 362188412Sthompsa 363188412Sthompsa if (ue->ue_methods->ue_tick != NULL) 364194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 365188412Sthompsa} 366188412Sthompsa 367188412Sthompsastatic void 368192984Sthompsaue_stop_task(struct usb_proc_msg *_task) 369188412Sthompsa{ 370192984Sthompsa struct usb_ether_cfg_task *task = 371192984Sthompsa (struct usb_ether_cfg_task *)_task; 372192984Sthompsa struct usb_ether *ue = task->ue; 373188412Sthompsa 374188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 375188412Sthompsa 376194228Sthompsa usb_callout_stop(&ue->ue_watchdog); 377188412Sthompsa 378188412Sthompsa ue->ue_methods->ue_stop(ue); 379188412Sthompsa} 380188412Sthompsa 381226709Syongarivoid 382226709Syongariuether_start(struct ifnet *ifp) 383226709Syongari{ 384226709Syongari 385226709Syongari ue_start(ifp); 386226709Syongari} 387226709Syongari 388188412Sthompsastatic void 389188412Sthompsaue_start(struct ifnet *ifp) 390188412Sthompsa{ 391192984Sthompsa struct usb_ether *ue = ifp->if_softc; 392188412Sthompsa 393188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 394188412Sthompsa return; 395188412Sthompsa 396188412Sthompsa UE_LOCK(ue); 397188412Sthompsa ue->ue_methods->ue_start(ue); 398188412Sthompsa UE_UNLOCK(ue); 399188412Sthompsa} 400188412Sthompsa 401188412Sthompsastatic void 402192984Sthompsaue_promisc_task(struct usb_proc_msg *_task) 403188412Sthompsa{ 404192984Sthompsa struct usb_ether_cfg_task *task = 405192984Sthompsa (struct usb_ether_cfg_task *)_task; 406192984Sthompsa struct usb_ether *ue = task->ue; 407188412Sthompsa 408188412Sthompsa ue->ue_methods->ue_setpromisc(ue); 409188412Sthompsa} 410188412Sthompsa 411188412Sthompsastatic void 412192984Sthompsaue_setmulti_task(struct usb_proc_msg *_task) 413188412Sthompsa{ 414192984Sthompsa struct usb_ether_cfg_task *task = 415192984Sthompsa (struct usb_ether_cfg_task *)_task; 416192984Sthompsa struct usb_ether *ue = task->ue; 417188412Sthompsa 418188412Sthompsa ue->ue_methods->ue_setmulti(ue); 419188412Sthompsa} 420188412Sthompsa 421226709Syongariint 422226709Syongariuether_ifmedia_upd(struct ifnet *ifp) 423226709Syongari{ 424226709Syongari 425226709Syongari return (ue_ifmedia_upd(ifp)); 426226709Syongari} 427226709Syongari 428188412Sthompsastatic int 429188412Sthompsaue_ifmedia_upd(struct ifnet *ifp) 430188412Sthompsa{ 431192984Sthompsa struct usb_ether *ue = ifp->if_softc; 432188412Sthompsa 433188412Sthompsa /* Defer to process context */ 434188412Sthompsa UE_LOCK(ue); 435188412Sthompsa ue_queue_command(ue, ue_ifmedia_task, 436188412Sthompsa &ue->ue_media_task[0].hdr, 437188412Sthompsa &ue->ue_media_task[1].hdr); 438188412Sthompsa UE_UNLOCK(ue); 439188412Sthompsa 440188412Sthompsa return (0); 441188412Sthompsa} 442188412Sthompsa 443188412Sthompsastatic void 444192984Sthompsaue_ifmedia_task(struct usb_proc_msg *_task) 445188412Sthompsa{ 446192984Sthompsa struct usb_ether_cfg_task *task = 447192984Sthompsa (struct usb_ether_cfg_task *)_task; 448192984Sthompsa struct usb_ether *ue = task->ue; 449188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 450188412Sthompsa 451188412Sthompsa ue->ue_methods->ue_mii_upd(ifp); 452188412Sthompsa} 453188412Sthompsa 454188412Sthompsastatic void 455188412Sthompsaue_watchdog(void *arg) 456188412Sthompsa{ 457192984Sthompsa struct usb_ether *ue = arg; 458188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 459188412Sthompsa 460188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 461188412Sthompsa return; 462188412Sthompsa 463188412Sthompsa ue_queue_command(ue, ue_tick_task, 464188412Sthompsa &ue->ue_tick_task[0].hdr, 465188412Sthompsa &ue->ue_tick_task[1].hdr); 466188412Sthompsa 467194228Sthompsa usb_callout_reset(&ue->ue_watchdog, hz, ue_watchdog, ue); 468188412Sthompsa} 469188412Sthompsa 470188412Sthompsastatic void 471192984Sthompsaue_tick_task(struct usb_proc_msg *_task) 472188412Sthompsa{ 473192984Sthompsa struct usb_ether_cfg_task *task = 474192984Sthompsa (struct usb_ether_cfg_task *)_task; 475192984Sthompsa struct usb_ether *ue = task->ue; 476188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 477188412Sthompsa 478188412Sthompsa if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0) 479188412Sthompsa return; 480188412Sthompsa 481188412Sthompsa ue->ue_methods->ue_tick(ue); 482188412Sthompsa} 483188412Sthompsa 484188412Sthompsaint 485194228Sthompsauether_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 486188412Sthompsa{ 487192984Sthompsa struct usb_ether *ue = ifp->if_softc; 488188412Sthompsa struct ifreq *ifr = (struct ifreq *)data; 489188412Sthompsa struct mii_data *mii; 490188412Sthompsa int error = 0; 491188412Sthompsa 492188412Sthompsa switch (command) { 493188412Sthompsa case SIOCSIFFLAGS: 494188412Sthompsa UE_LOCK(ue); 495188412Sthompsa if (ifp->if_flags & IFF_UP) { 496188412Sthompsa if (ifp->if_drv_flags & IFF_DRV_RUNNING) 497188412Sthompsa ue_queue_command(ue, ue_promisc_task, 498188412Sthompsa &ue->ue_promisc_task[0].hdr, 499188412Sthompsa &ue->ue_promisc_task[1].hdr); 500188412Sthompsa else 501188412Sthompsa ue_queue_command(ue, ue_start_task, 502188412Sthompsa &ue->ue_sync_task[0].hdr, 503188412Sthompsa &ue->ue_sync_task[1].hdr); 504188412Sthompsa } else { 505188412Sthompsa ue_queue_command(ue, ue_stop_task, 506188412Sthompsa &ue->ue_sync_task[0].hdr, 507188412Sthompsa &ue->ue_sync_task[1].hdr); 508184610Salfred } 509188412Sthompsa UE_UNLOCK(ue); 510188412Sthompsa break; 511188412Sthompsa case SIOCADDMULTI: 512188412Sthompsa case SIOCDELMULTI: 513188412Sthompsa UE_LOCK(ue); 514188412Sthompsa ue_queue_command(ue, ue_setmulti_task, 515188412Sthompsa &ue->ue_multi_task[0].hdr, 516188412Sthompsa &ue->ue_multi_task[1].hdr); 517188412Sthompsa UE_UNLOCK(ue); 518188412Sthompsa break; 519188412Sthompsa case SIOCGIFMEDIA: 520188412Sthompsa case SIOCSIFMEDIA: 521188412Sthompsa if (ue->ue_miibus != NULL) { 522188412Sthompsa mii = device_get_softc(ue->ue_miibus); 523188412Sthompsa error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); 524188412Sthompsa } else 525188412Sthompsa error = ether_ioctl(ifp, command, data); 526188412Sthompsa break; 527188412Sthompsa default: 528188412Sthompsa error = ether_ioctl(ifp, command, data); 529188412Sthompsa break; 530184610Salfred } 531188412Sthompsa return (error); 532184610Salfred} 533188412Sthompsa 534188412Sthompsastatic int 535194228Sthompsauether_modevent(module_t mod, int type, void *data) 536188412Sthompsa{ 537188412Sthompsa 538188412Sthompsa switch (type) { 539188412Sthompsa case MOD_LOAD: 540188412Sthompsa ueunit = new_unrhdr(0, INT_MAX, NULL); 541188412Sthompsa break; 542188412Sthompsa case MOD_UNLOAD: 543188412Sthompsa break; 544188412Sthompsa default: 545188412Sthompsa return (EOPNOTSUPP); 546188412Sthompsa } 547188412Sthompsa return (0); 548188412Sthompsa} 549194228Sthompsastatic moduledata_t uether_mod = { 550188942Sthompsa "uether", 551194228Sthompsa uether_modevent, 552188412Sthompsa 0 553188412Sthompsa}; 554188412Sthompsa 555189528Sthompsastruct mbuf * 556194228Sthompsauether_newbuf(void) 557189528Sthompsa{ 558189528Sthompsa struct mbuf *m_new; 559189528Sthompsa 560189528Sthompsa m_new = m_getcl(M_DONTWAIT, MT_DATA, M_PKTHDR); 561189528Sthompsa if (m_new == NULL) 562189528Sthompsa return (NULL); 563189528Sthompsa m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; 564189528Sthompsa 565189528Sthompsa m_adj(m_new, ETHER_ALIGN); 566189528Sthompsa return (m_new); 567189528Sthompsa} 568189528Sthompsa 569188412Sthompsaint 570194228Sthompsauether_rxmbuf(struct usb_ether *ue, struct mbuf *m, 571188412Sthompsa unsigned int len) 572188412Sthompsa{ 573188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 574188412Sthompsa 575188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 576188412Sthompsa 577188412Sthompsa /* finalize mbuf */ 578188412Sthompsa ifp->if_ipackets++; 579188412Sthompsa m->m_pkthdr.rcvif = ifp; 580188412Sthompsa m->m_pkthdr.len = m->m_len = len; 581188412Sthompsa 582188412Sthompsa /* enqueue for later when the lock can be released */ 583188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 584188412Sthompsa return (0); 585188412Sthompsa} 586188412Sthompsa 587188412Sthompsaint 588194228Sthompsauether_rxbuf(struct usb_ether *ue, struct usb_page_cache *pc, 589188412Sthompsa unsigned int offset, unsigned int len) 590188412Sthompsa{ 591188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 592188412Sthompsa struct mbuf *m; 593188412Sthompsa 594188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 595188412Sthompsa 596189528Sthompsa if (len < ETHER_HDR_LEN || len > MCLBYTES - ETHER_ALIGN) 597188412Sthompsa return (1); 598188412Sthompsa 599194228Sthompsa m = uether_newbuf(); 600188412Sthompsa if (m == NULL) { 601213438Syongari ifp->if_iqdrops++; 602188412Sthompsa return (ENOMEM); 603188412Sthompsa } 604188412Sthompsa 605194228Sthompsa usbd_copy_out(pc, offset, mtod(m, uint8_t *), len); 606188412Sthompsa 607188412Sthompsa /* finalize mbuf */ 608188412Sthompsa ifp->if_ipackets++; 609188412Sthompsa m->m_pkthdr.rcvif = ifp; 610188412Sthompsa m->m_pkthdr.len = m->m_len = len; 611188412Sthompsa 612188412Sthompsa /* enqueue for later when the lock can be released */ 613188412Sthompsa _IF_ENQUEUE(&ue->ue_rxq, m); 614188412Sthompsa return (0); 615188412Sthompsa} 616188412Sthompsa 617188412Sthompsavoid 618194228Sthompsauether_rxflush(struct usb_ether *ue) 619188412Sthompsa{ 620188412Sthompsa struct ifnet *ifp = ue->ue_ifp; 621188412Sthompsa struct mbuf *m; 622188412Sthompsa 623188412Sthompsa UE_LOCK_ASSERT(ue, MA_OWNED); 624188412Sthompsa 625188412Sthompsa for (;;) { 626188412Sthompsa _IF_DEQUEUE(&ue->ue_rxq, m); 627188412Sthompsa if (m == NULL) 628188412Sthompsa break; 629188412Sthompsa 630188412Sthompsa /* 631188412Sthompsa * The USB xfer has been resubmitted so its safe to unlock now. 632188412Sthompsa */ 633188412Sthompsa UE_UNLOCK(ue); 634188412Sthompsa ifp->if_input(ifp, m); 635188412Sthompsa UE_LOCK(ue); 636188412Sthompsa } 637188412Sthompsa} 638188412Sthompsa 639194228SthompsaDECLARE_MODULE(uether, uether_mod, SI_SUB_PSEUDO, SI_ORDER_ANY); 640188942SthompsaMODULE_VERSION(uether, 1); 641