diff --git a/sys/dev/usb/if_axe.c b/sys/dev/usb/if_axe.c index 979c7b230a46..1184840ba750 100644 --- a/sys/dev/usb/if_axe.c +++ b/sys/dev/usb/if_axe.c @@ -75,6 +75,7 @@ __FBSDID("$FreeBSD$"); #include #include #include +#include #include #include @@ -184,6 +185,7 @@ axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) usb_device_request_t req; usbd_status err; + AXE_SLEEPLOCKASSERT(sc); if (sc->axe_dying) return(0); @@ -214,6 +216,7 @@ axe_miibus_readreg(device_ptr_t dev, int phy, int reg) if (sc->axe_dying) return(0); + AXE_SLEEPLOCKASSERT(sc); #ifdef notdef /* * The chip tells us the MII address of any supported @@ -255,6 +258,7 @@ axe_miibus_writereg(device_ptr_t dev, int phy, int reg, int val) if (sc->axe_dying) return(0); + AXE_SLEEPLOCKASSERT(sc); AXE_LOCK(sc); axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, (void *)&val); @@ -466,6 +470,8 @@ USB_ATTACH(axe) mtx_init(&sc->axe_mtx, device_get_nameunit(self), MTX_NETWORK_LOCK, MTX_DEF | MTX_RECURSE); #endif + sx_init(&sc->axe_sleeplock, device_get_nameunit(self)); + AXE_SLEEPLOCK(sc); AXE_LOCK(sc); /* @@ -489,6 +495,8 @@ USB_ATTACH(axe) if (ifp == NULL) { printf("axe%d: can not if_alloc()\n", sc->axe_unit); AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); + sx_destroy(&sc->axe_sleeplock); #if __FreeBSD_version >= 500000 mtx_destroy(&sc->axe_mtx); #endif @@ -513,6 +521,8 @@ USB_ATTACH(axe) printf("axe%d: MII without any PHY!\n", sc->axe_unit); if_free(ifp); AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); + sx_destroy(&sc->axe_sleeplock); #if __FreeBSD_version >= 500000 mtx_destroy(&sc->axe_mtx); #endif @@ -534,6 +544,7 @@ USB_ATTACH(axe) sc->axe_dying = 0; AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); USB_ATTACH_SUCCESS_RETURN; } @@ -567,6 +578,7 @@ axe_detach(device_ptr_t dev) usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); AXE_UNLOCK(sc); + sx_destroy(&sc->axe_sleeplock); #if __FreeBSD_version >= 500000 mtx_destroy(&sc->axe_mtx); #endif @@ -745,12 +757,14 @@ axe_tick_task(void *xsc) if (sc == NULL) return; + AXE_SLEEPLOCK(sc); AXE_LOCK(sc); ifp = sc->axe_ifp; mii = GET_MII(sc); if (mii == NULL) { AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); return; } @@ -765,6 +779,7 @@ axe_tick_task(void *xsc) sc->axe_stat_ch = timeout(axe_tick, sc, hz); AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); return; } @@ -791,7 +806,10 @@ axe_encap(struct axe_softc *sc, struct mbuf *m, int idx) /* Transmit */ err = usbd_transfer(c->ue_xfer); if (err != USBD_IN_PROGRESS) { + /* XXX probably don't want to sleep here */ + AXE_SLEEPLOCK(sc); axe_stop(sc); + AXE_SLEEPUNLOCK(sc); return(EIO); } @@ -862,6 +880,7 @@ axe_init(void *xsc) if (ifp->if_drv_flags & IFF_DRV_RUNNING) return; + AXE_SLEEPLOCK(sc); AXE_LOCK(sc); /* @@ -882,6 +901,7 @@ axe_init(void *xsc) sc->axe_udev) == ENOBUFS) { printf("axe%d: tx list init failed\n", sc->axe_unit); AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); return; } @@ -890,6 +910,7 @@ axe_init(void *xsc) sc->axe_udev) == ENOBUFS) { printf("axe%d: rx list init failed\n", sc->axe_unit); AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); return; } @@ -920,6 +941,7 @@ axe_init(void *xsc) printf("axe%d: open rx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); return; } @@ -929,6 +951,7 @@ axe_init(void *xsc) printf("axe%d: open tx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); return; } @@ -945,6 +968,7 @@ axe_init(void *xsc) ifp->if_drv_flags &= ~IFF_DRV_OACTIVE; AXE_UNLOCK(sc); + AXE_SLEEPUNLOCK(sc); sc->axe_stat_ch = timeout(axe_tick, sc, hz); @@ -966,6 +990,7 @@ axe_ioctl(struct ifnet *ifp, u_long command, caddr_t data) if (ifp->if_drv_flags & IFF_DRV_RUNNING && ifp->if_flags & IFF_PROMISC && !(sc->axe_if_flags & IFF_PROMISC)) { + AXE_SLEEPLOCK(sc); AXE_LOCK(sc); axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); @@ -974,9 +999,11 @@ axe_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 0, rxmode, NULL); AXE_UNLOCK(sc); axe_setmulti(sc); + AXE_SLEEPUNLOCK(sc); } else if (ifp->if_drv_flags & IFF_DRV_RUNNING && !(ifp->if_flags & IFF_PROMISC) && sc->axe_if_flags & IFF_PROMISC) { + AXE_SLEEPLOCK(sc); AXE_LOCK(sc); axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, (void *)&rxmode); @@ -985,24 +1012,32 @@ axe_ioctl(struct ifnet *ifp, u_long command, caddr_t data) 0, rxmode, NULL); AXE_UNLOCK(sc); axe_setmulti(sc); + AXE_SLEEPUNLOCK(sc); } else if (!(ifp->if_drv_flags & IFF_DRV_RUNNING)) axe_init(sc); } else { - if (ifp->if_drv_flags & IFF_DRV_RUNNING) + if (ifp->if_drv_flags & IFF_DRV_RUNNING) { + AXE_SLEEPLOCK(sc); axe_stop(sc); + AXE_SLEEPUNLOCK(sc); + } } sc->axe_if_flags = ifp->if_flags; error = 0; break; case SIOCADDMULTI: case SIOCDELMULTI: + AXE_SLEEPLOCK(sc); axe_setmulti(sc); + AXE_SLEEPUNLOCK(sc); error = 0; break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: + AXE_SLEEPLOCK(sc); mii = GET_MII(sc); error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, command); + AXE_SLEEPUNLOCK(sc); break; default: @@ -1010,8 +1045,6 @@ axe_ioctl(struct ifnet *ifp, u_long command, caddr_t data) break; } - AXE_UNLOCK(sc); - return(error); } @@ -1050,6 +1083,7 @@ axe_stop(struct axe_softc *sc) usbd_status err; struct ifnet *ifp; + AXE_SLEEPLOCKASSERT(sc); AXE_LOCK(sc); ifp = sc->axe_ifp; @@ -1125,7 +1159,9 @@ axe_shutdown(device_ptr_t dev) sc = device_get_softc(dev); + AXE_SLEEPLOCK(sc); axe_stop(sc); + AXE_SLEEPUNLOCK(sc); return; } diff --git a/sys/dev/usb/if_axereg.h b/sys/dev/usb/if_axereg.h index 955321ca8d6a..daaca88349b3 100644 --- a/sys/dev/usb/if_axereg.h +++ b/sys/dev/usb/if_axereg.h @@ -141,6 +141,7 @@ struct axe_softc { #if __FreeBSD_version >= 500000 struct mtx axe_mtx; #endif + struct sx axe_sleeplock; char axe_dying; int axe_link; unsigned char axe_ipgs[3]; @@ -157,3 +158,6 @@ struct axe_softc { #define AXE_LOCK(_sc) #define AXE_UNLOCK(_sc) #endif +#define AXE_SLEEPLOCK(_sc) sx_xlock(&(_sc)->axe_sleeplock) +#define AXE_SLEEPUNLOCK(_sc) sx_xunlock(&(_sc)->axe_sleeplock) +#define AXE_SLEEPLOCKASSERT(_sc) sx_assert(&(_sc)->axe_sleeplock, SX_XLOCKED)