/* $OpenBSD: if_axe.c,v 1.23 2005/02/12 10:21:04 jsg Exp $ */ /* * Copyright (c) 1997, 1998, 1999, 2000-2003 * Bill Paul . All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * 3. All advertising materials mentioning features or use of this software * must display the following acknowledgement: * This product includes software developed by Bill Paul. * 4. Neither the name of the author nor the names of any co-contributors * may be used to endorse or promote products derived from this software * without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY Bill Paul AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL Bill Paul OR THE VOICES IN HIS HEAD * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. */ #include /* * ASIX Electronics AX88172 USB 2.0 ethernet driver. Used in the * LinkSys USB200M and various other adapters. * * Manuals available from: * http://www.asix.com.tw/datasheet/mac/Ax88172.PDF * Note: you need the manual for the AX88170 chip (USB 1.x ethernet * controller) to find the definitions for the RX control register. * http://www.asix.com.tw/datasheet/mac/Ax88170.PDF * * Written by Bill Paul * Senior Engineer * Wind River Systems */ /* * The AX88172 provides USB ethernet supports at 10 and 100Mbps. * It uses an external PHY (reference designs use a RealTek chip), * and has a 64-bit multicast hash filter. There is some information * missing from the manual which one needs to know in order to make * the chip function: * * - You must set bit 7 in the RX control register, otherwise the * chip won't receive any packets. * - You must initialize all 3 IPG registers, or you won't be able * to send any packets. * * Note that this device appears to only support loading the station * address via autload from the EEPROM (i.e. there's no way to manaully * set it). * * (Adam Weinberger wanted me to name this driver if_gir.c.) */ /* * Ported to OpenBSD 3/28/2004 by Greg Taleck * with bits and pieces from the aue and url drivers. */ #if defined(__NetBSD__) #include "opt_inet.h" #include "opt_ns.h" #include "rnd.h" #endif #include "bpfilter.h" #include #include #include #include #include #include #if defined(__OpenBSD__) #include #endif #include #include #if NRND > 0 #include #endif #include #if defined(__NetBSD__) #include #endif #include #include #define BPF_MTAP(ifp, m) bpf_mtap((ifp)->if_bpf, (m)) #if NBPFILTER > 0 #include #endif #if defined(__NetBSD__) #include #ifdef INET #include #include #endif #endif /* defined(__NetBSD__) */ #if defined(__OpenBSD__) #ifdef INET #include #include #include #include #include #endif #endif /* defined(__OpenBSD__) */ #ifdef NS #include #include #endif #include #include #include #include #include #include #include #ifdef AXE_DEBUG #define DPRINTF(x) do { if (axedebug) logprintf x; } while (0) #define DPRINTFN(n,x) do { if (axedebug >= (n)) logprintf x; } while (0) int axedebug = 0; #else #define DPRINTF(x) #define DPRINTFN(n,x) #endif /* * Various supported device vendors/products. */ Static const struct axe_type axe_devs[] = { { { USB_VENDOR_ABOCOM, USB_PRODUCT_ABOCOM_UF200}, 0 }, { { USB_VENDOR_ACERCM, USB_PRODUCT_ACERCM_EP1427X2}, 0 }, { { USB_VENDOR_ASIX, USB_PRODUCT_ASIX_AX88172}, 0 }, { { USB_VENDOR_ATEN, USB_PRODUCT_ATEN_UC210T}, 0 }, { { USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_SNAPPORT}, 0 }, { { USB_VENDOR_BILLIONTON, USB_PRODUCT_BILLIONTON_USB2AR}, 0}, { { USB_VENDOR_COREGA, USB_PRODUCT_COREGA_FETHER_USB2_TX }, 0}, { { USB_VENDOR_DLINK, USB_PRODUCT_DLINK_DUBE100}, 0 }, { { USB_VENDOR_LINKSYS2, USB_PRODUCT_LINKSYS2_USB200M}, 0 }, { { USB_VENDOR_MELCO, USB_PRODUCT_MELCO_LUAU2KTX}, 0 }, { { USB_VENDOR_NETGEAR, USB_PRODUCT_NETGEAR_FA120}, 0 }, { { USB_VENDOR_SYSTEMTALKS, USB_PRODUCT_SYSTEMTALKS_SGCX2UL}, 0 }, { { USB_VENDOR_SITECOM, USB_PRODUCT_SITECOM_LN029}, 0 }, { { 0, 0}, 0 } }; #define axe_lookup(v, p) ((struct axe_type *)usb_lookup(axe_devs, v, p)) USB_DECLARE_DRIVER_CLASS(axe, DV_IFNET); Static int axe_tx_list_init(struct axe_softc *); Static int axe_rx_list_init(struct axe_softc *); Static int axe_newbuf(struct axe_softc *, struct axe_chain *, struct mbuf *); Static int axe_encap(struct axe_softc *, struct mbuf *, int); Static void axe_rxeof(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void axe_txeof(usbd_xfer_handle, usbd_private_handle, usbd_status); Static void axe_tick(void *); Static void axe_tick_task(void *); Static void axe_rxstart(struct ifnet *); Static void axe_start(struct ifnet *); Static int axe_ioctl(struct ifnet *, u_long, caddr_t); Static void axe_init(void *); Static void axe_stop(struct axe_softc *); Static void axe_watchdog(struct ifnet *); Static int axe_miibus_readreg(device_ptr_t, int, int); Static void axe_miibus_writereg(device_ptr_t, int, int, int); Static void axe_miibus_statchg(device_ptr_t); Static int axe_cmd(struct axe_softc *, int, int, int, void *); Static int axe_ifmedia_upd(struct ifnet *); Static void axe_ifmedia_sts(struct ifnet *, struct ifmediareq *); Static void axe_reset(struct axe_softc *sc); Static void axe_setmulti(struct axe_softc *); Static void axe_lock_mii(struct axe_softc *sc); Static void axe_unlock_mii(struct axe_softc *sc); /* Get exclusive access to the MII registers */ Static void axe_lock_mii(struct axe_softc *sc) { sc->axe_refcnt++; usb_lockmgr(&sc->axe_mii_lock, LK_EXCLUSIVE, NULL, curproc); } Static void axe_unlock_mii(struct axe_softc *sc) { usb_lockmgr(&sc->axe_mii_lock, LK_RELEASE, NULL, curproc); if (--sc->axe_refcnt < 0) usb_detach_wakeup(USBDEV(sc->axe_dev)); } Static int axe_cmd(struct axe_softc *sc, int cmd, int index, int val, void *buf) { usb_device_request_t req; usbd_status err; if (sc->axe_dying) return(0); axe_lock_mii(sc); if (AXE_CMD_DIR(cmd)) req.bmRequestType = UT_WRITE_VENDOR_DEVICE; else req.bmRequestType = UT_READ_VENDOR_DEVICE; req.bRequest = AXE_CMD_CMD(cmd); USETW(req.wValue, val); USETW(req.wIndex, index); USETW(req.wLength, AXE_CMD_LEN(cmd)); err = usbd_do_request(sc->axe_udev, &req, buf); axe_unlock_mii(sc); if (err) return(-1); return(0); } Static int axe_miibus_readreg(device_ptr_t dev, int phy, int reg) { struct axe_softc *sc = USBGETSOFTC(dev); usbd_status err; uWord val; if (sc->axe_dying) { DPRINTF(("axe: dying\n")); return(0); } #ifdef notdef /* * The chip tells us the MII address of any supported * PHYs attached to the chip, so only read from those. */ if (sc->axe_phyaddrs[0] != AXE_NOPHY && phy != sc->axe_phyaddrs[0]) return (0); if (sc->axe_phyaddrs[1] != AXE_NOPHY && phy != sc->axe_phyaddrs[1]) return (0); #endif if (sc->axe_phyaddrs[0] != 0xFF && sc->axe_phyaddrs[0] != phy) return (0); USETW(val, 0); axe_lock_mii(sc); axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); err = axe_cmd(sc, AXE_CMD_MII_READ_REG, reg, phy, val); axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); axe_unlock_mii(sc); if (err) { printf("axe%d: read PHY failed\n", sc->axe_unit); return(-1); } if (UGETW(val)) sc->axe_phyaddrs[0] = phy; return (UGETW(val)); } Static void axe_miibus_writereg(device_ptr_t dev, int phy, int reg, int val) { struct axe_softc *sc = USBGETSOFTC(dev); usbd_status err; uWord uval; if (sc->axe_dying) return; USETW(uval, val); axe_lock_mii(sc); axe_cmd(sc, AXE_CMD_MII_OPMODE_SW, 0, 0, NULL); err = axe_cmd(sc, AXE_CMD_MII_WRITE_REG, reg, phy, uval); axe_cmd(sc, AXE_CMD_MII_OPMODE_HW, 0, 0, NULL); axe_unlock_mii(sc); if (err) { printf("axe%d: write PHY failed\n", sc->axe_unit); return; } } Static void axe_miibus_statchg(device_ptr_t dev) { struct axe_softc *sc = USBGETSOFTC(dev); struct mii_data *mii = GET_MII(sc); int val, err; if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX) val = AXE_MEDIA_FULL_DUPLEX; else val = 0; DPRINTF(("axe_miibus_statchg: val=0x%x\n", val)); err = axe_cmd(sc, AXE_CMD_WRITE_MEDIA, 0, val, NULL); if (err) { printf("%s: media change failed\n", USBDEVNAME(sc->axe_dev)); return; } } /* * Set media options. */ Static int axe_ifmedia_upd(struct ifnet *ifp) { struct axe_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); sc->axe_link = 0; if (mii->mii_instance) { struct mii_softc *miisc; LIST_FOREACH(miisc, &mii->mii_phys, mii_list) mii_phy_reset(miisc); } mii_mediachg(mii); return (0); } /* * Report current media status. */ Static void axe_ifmedia_sts(struct ifnet *ifp, struct ifmediareq *ifmr) { struct axe_softc *sc = ifp->if_softc; struct mii_data *mii = GET_MII(sc); mii_pollstat(mii); ifmr->ifm_active = mii->mii_media_active; ifmr->ifm_status = mii->mii_media_status; } Static void axe_setmulti(struct axe_softc *sc) { struct ifnet *ifp; struct ether_multi *enm; struct ether_multistep step; u_int32_t h = 0; uWord urxmode; u_int16_t rxmode; u_int8_t hashtbl[8] = { 0, 0, 0, 0, 0, 0, 0, 0 }; if (sc->axe_dying) return; ifp = GET_IFP(sc); axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, urxmode); rxmode = UGETW(urxmode); if (ifp->if_flags & IFF_ALLMULTI || ifp->if_flags & IFF_PROMISC) { allmulti: rxmode |= AXE_RXCMD_ALLMULTI; axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); return; } else rxmode &= ~AXE_RXCMD_ALLMULTI; /* now program new ones */ ETHER_FIRST_MULTI(step, &sc->arpcom, enm); while (enm != NULL) { if (memcmp(enm->enm_addrlo, enm->enm_addrhi, ETHER_ADDR_LEN) != 0) goto allmulti; h = ether_crc32_be(enm->enm_addrlo, ETHER_ADDR_LEN) >> 26; hashtbl[h / 8] |= 1 << (h % 8); ETHER_NEXT_MULTI(step, enm); } ifp->if_flags &= ~IFF_ALLMULTI; axe_cmd(sc, AXE_CMD_WRITE_MCAST, 0, 0, (void *)&hashtbl); axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); return; } Static void axe_reset(struct axe_softc *sc) { if (sc->axe_dying) return; /* XXX What to reset? */ /* Wait a little while for the chip to get its brains in order. */ DELAY(1000); return; } /* * Probe for a AX88172 chip. */ USB_MATCH(axe) { USB_MATCH_START(axe, uaa); if (!uaa->iface) { return(UMATCH_NONE); } return (axe_lookup(uaa->vendor, uaa->product) != NULL ? UMATCH_VENDOR_PRODUCT : UMATCH_NONE); } /* * Attach the interface. Allocate softc structures, do ifmedia * setup and ethernet/BPF attach. */ USB_ATTACH(axe) { USB_ATTACH_START(axe, sc, uaa); usbd_device_handle dev = uaa->device; usbd_status err; usb_interface_descriptor_t *id; usb_endpoint_descriptor_t *ed; struct mii_data *mii; u_char eaddr[ETHER_ADDR_LEN]; char devinfo[1024]; char *devname = USBDEVNAME(sc->axe_dev); struct ifnet *ifp; int i, s; usbd_devinfo(dev, 0, devinfo, sizeof devinfo); USB_ATTACH_SETUP; sc->axe_unit = self->dv_unit; /*device_get_unit(self);*/ err = usbd_set_config_no(dev, AXE_CONFIG_NO, 1); if (err) { printf("axe%d: getting interface handle failed\n", sc->axe_unit); USB_ATTACH_ERROR_RETURN; } usb_init_task(&sc->axe_tick_task, axe_tick_task, sc); lockinit(&sc->axe_mii_lock, PZERO, "axemii", 0, LK_CANRECURSE); usb_init_task(&sc->axe_stop_task, (void (*)(void *))axe_stop, sc); err = usbd_device2interface_handle(dev, AXE_IFACE_IDX, &sc->axe_iface); if (err) { printf("axe%d: getting interface handle failed\n", sc->axe_unit); USB_ATTACH_ERROR_RETURN; } sc->axe_udev = dev; sc->axe_product = uaa->product; sc->axe_vendor = uaa->vendor; id = usbd_get_interface_descriptor(sc->axe_iface); printf("%s: %s", USBDEVNAME(sc->axe_dev), devinfo); /* Find endpoints. */ for (i = 0; i < id->bNumEndpoints; i++) { ed = usbd_interface2endpoint_descriptor(sc->axe_iface, i); if (!ed) { printf(" couldn't get ep %d\n", i); USB_ATTACH_ERROR_RETURN; } if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->axe_ed[AXE_ENDPT_RX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_OUT && UE_GET_XFERTYPE(ed->bmAttributes) == UE_BULK) { sc->axe_ed[AXE_ENDPT_TX] = ed->bEndpointAddress; } else if (UE_GET_DIR(ed->bEndpointAddress) == UE_DIR_IN && UE_GET_XFERTYPE(ed->bmAttributes) == UE_INTERRUPT) { sc->axe_ed[AXE_ENDPT_INTR] = ed->bEndpointAddress; } } s = splnet(); /* * Get station address. */ axe_cmd(sc, AXE_CMD_READ_NODEID, 0, 0, &eaddr); /* * Load IPG values and PHY indexes. */ axe_cmd(sc, AXE_CMD_READ_IPG012, 0, 0, (void *)&sc->axe_ipgs); axe_cmd(sc, AXE_CMD_READ_PHYID, 0, 0, (void *)&sc->axe_phyaddrs); /* * Work around broken adapters that appear to lie about * their PHY addresses. */ sc->axe_phyaddrs[0] = sc->axe_phyaddrs[1] = 0xFF; /* * An ASIX chip was detected. Inform the world. */ printf(", address %s\n", ether_sprintf(eaddr)); bcopy(eaddr, (char *)&sc->arpcom.ac_enaddr, ETHER_ADDR_LEN); /* Initialize interface info.*/ ifp = &sc->arpcom.ac_if; ifp->if_softc = sc; strlcpy(ifp->if_xname, devname, IFNAMSIZ); ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX | IFF_MULTICAST; ifp->if_ioctl = axe_ioctl; ifp->if_start = axe_start; ifp->if_watchdog = axe_watchdog; /* ifp->if_baudrate = 10000000; */ /* ifp->if_snd.ifq_maxlen = IFQ_MAXLEN;*/ IFQ_SET_READY(&ifp->if_snd); /* Initialize MII/media info. */ mii = &sc->axe_mii; mii->mii_ifp = ifp; mii->mii_readreg = axe_miibus_readreg; mii->mii_writereg = axe_miibus_writereg; mii->mii_statchg = axe_miibus_statchg; mii->mii_flags = MIIF_AUTOTSLEEP; ifmedia_init(&mii->mii_media, 0, axe_ifmedia_upd, axe_ifmedia_sts); mii_attach(self, mii, 0xffffffff, MII_PHY_ANY, MII_OFFSET_ANY, 0); if (LIST_FIRST(&mii->mii_phys) == NULL) { ifmedia_add(&mii->mii_media, IFM_ETHER | IFM_NONE, 0, NULL); ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_NONE); } else ifmedia_set(&mii->mii_media, IFM_ETHER | IFM_AUTO); /* Attach the interface. */ if_attach(ifp); Ether_ifattach(ifp, eaddr); #if NRND > 0 rnd_attach_source(&sc->rnd_source, USBDEVNAME(sc->axe_dev), RND_TYPE_NET, 0); #endif usb_callout_init(sc->axe_stat_ch); sc->axe_attached = 1; splx(s); usbd_add_drv_event(USB_EVENT_DRIVER_ATTACH, sc->axe_udev, USBDEV(sc->axe_dev)); USB_ATTACH_SUCCESS_RETURN; } USB_DETACH(axe) { USB_DETACH_START(axe, sc); int s; struct ifnet *ifp = GET_IFP(sc); DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); /* Detached before attached finished, so just bail out. */ if (!sc->axe_attached) return (0); usb_uncallout(sc->axe_stat_ch, axe_tick, sc); sc->axe_dying = 1; ether_ifdetach(ifp); if (sc->axe_ep[AXE_ENDPT_TX] != NULL) usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); if (sc->axe_ep[AXE_ENDPT_RX] != NULL) usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); /* * Remove any pending tasks. They cannot be executing because they run * in the same thread as detach. */ usb_rem_task(sc->axe_udev, &sc->axe_tick_task); usb_rem_task(sc->axe_udev, &sc->axe_stop_task); s = splusb(); if (--sc->axe_refcnt >= 0) { /* Wait for processes to go away */ usb_detach_wait(USBDEV(sc->axe_dev)); } if (ifp->if_flags & IFF_RUNNING) axe_stop(sc); #if defined(__NetBSD__) #if NRND > 0 rnd_detach_source(&sc->rnd_source); #endif #endif /* __NetBSD__ */ mii_detach(&sc->axe_mii, MII_PHY_ANY, MII_OFFSET_ANY); ifmedia_delete_instance(&sc->axe_mii.mii_media, IFM_INST_ANY); ether_ifdetach(ifp); if_detach(ifp); #ifdef DIAGNOSTIC if (sc->axe_ep[AXE_ENDPT_TX] != NULL || sc->axe_ep[AXE_ENDPT_RX] != NULL || sc->axe_ep[AXE_ENDPT_INTR] != NULL) printf("%s: detach has active endpoints\n", USBDEVNAME(sc->axe_dev)); #endif sc->axe_attached = 0; if (--sc->axe_refcnt >= 0) { /* Wait for processes to go away. */ usb_detach_wait(USBDEV(sc->axe_dev)); } splx(s); usbd_add_drv_event(USB_EVENT_DRIVER_DETACH, sc->axe_udev, USBDEV(sc->axe_dev)); return (0); } int axe_activate(device_ptr_t self, enum devact act) { struct axe_softc *sc = (struct axe_softc *)self; DPRINTFN(2,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); switch (act) { case DVACT_ACTIVATE: return (EOPNOTSUPP); break; case DVACT_DEACTIVATE: if_deactivate(&sc->axe_ec.ec_if); sc->axe_dying = 1; break; } return (0); } /* * Initialize an RX descriptor and attach an MBUF cluster. */ Static int axe_newbuf(struct axe_softc *sc, struct axe_chain *c, struct mbuf *m) { struct mbuf *m_new = NULL; DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); if (m == NULL) { MGETHDR(m_new, M_DONTWAIT, MT_DATA); if (m_new == NULL) { printf("%s: no memory for rx list " "-- packet dropped!\n", USBDEVNAME(sc->axe_dev)); return (ENOBUFS); } MCLGET(m_new, M_DONTWAIT); if (!(m_new->m_flags & M_EXT)) { printf("%s: no memory for rx list " "-- packet dropped!\n", USBDEVNAME(sc->axe_dev)); m_freem(m_new); return (ENOBUFS); } m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; } else { m_new = m; m_new->m_len = m_new->m_pkthdr.len = MCLBYTES; m_new->m_data = m_new->m_ext.ext_buf; } m_adj(m_new, ETHER_ALIGN); c->axe_mbuf = m_new; return (0); } Static int axe_rx_list_init(struct axe_softc *sc) { struct axe_cdata *cd; struct axe_chain *c; int i; DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); cd = &sc->axe_cdata; for (i = 0; i < AXE_RX_LIST_CNT; i++) { c = &cd->axe_rx_chain[i]; c->axe_sc = sc; c->axe_idx = i; if (axe_newbuf(sc, c, NULL) == ENOBUFS) return (ENOBUFS); if (c->axe_xfer == NULL) { c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); if (c->axe_xfer == NULL) return (ENOBUFS); c->axe_buf = usbd_alloc_buffer(c->axe_xfer, AXE_BUFSZ); if (c->axe_buf == NULL) { usbd_free_xfer(c->axe_xfer); return (ENOBUFS); } } } return (0); } Static int axe_tx_list_init(struct axe_softc *sc) { struct axe_cdata *cd; struct axe_chain *c; int i; DPRINTF(("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); cd = &sc->axe_cdata; for (i = 0; i < AXE_TX_LIST_CNT; i++) { c = &cd->axe_tx_chain[i]; c->axe_sc = sc; c->axe_idx = i; c->axe_mbuf = NULL; if (c->axe_xfer == NULL) { c->axe_xfer = usbd_alloc_xfer(sc->axe_udev); if (c->axe_xfer == NULL) return (ENOBUFS); c->axe_buf = usbd_alloc_buffer(c->axe_xfer, AXE_BUFSZ); if (c->axe_buf == NULL) { usbd_free_xfer(c->axe_xfer); return (ENOBUFS); } } } return (0); } Static void axe_rxstart(struct ifnet *ifp) { struct axe_softc *sc; struct axe_chain *c; sc = ifp->if_softc; axe_lock_mii(sc); c = &sc->axe_cdata.axe_rx_chain[sc->axe_cdata.axe_rx_prod]; if (axe_newbuf(sc, c, NULL) == ENOBUFS) { ifp->if_ierrors++; axe_unlock_mii(sc); return; } /* Setup new transfer. */ usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], c, c->axe_buf, AXE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, axe_rxeof); usbd_transfer(c->axe_xfer); axe_unlock_mii(sc); return; } /* * A frame has been uploaded: pass the resulting mbuf chain up to * the higher level protocols. */ Static void axe_rxeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct axe_softc *sc; struct axe_chain *c; struct ifnet *ifp; struct mbuf *m; u_int32_t total_len; int s; c = priv; sc = c->axe_sc; ifp = GET_IFP(sc); DPRINTFN(10,("%s: %s: enter\n", USBDEVNAME(sc->axe_dev),__func__)); if (sc->axe_dying) return; if (!(ifp->if_flags & IFF_RUNNING)) return; if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) return; if (usbd_ratecheck(&sc->axe_rx_notice)) { printf("%s: usb errors on rx: %s\n", USBDEVNAME(sc->axe_dev), usbd_errstr(status)); } if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_RX]); goto done; } usbd_get_xfer_status(xfer, NULL, NULL, &total_len, NULL); m = c->axe_mbuf; if (total_len <= sizeof(struct ether_header)) { ifp->if_ierrors++; goto done; } ifp->if_ipackets++; m->m_pkthdr.rcvif = ifp; m->m_pkthdr.len = m->m_len = total_len; memcpy(mtod(c->axe_mbuf, char *), c->axe_buf, total_len); /* No errors; receive the packet. */ total_len -= ETHER_CRC_LEN + 4; s = splnet(); /* XXX ugly */ if (axe_newbuf(sc, c, NULL) == ENOBUFS) { ifp->if_ierrors++; goto done1; } #if NBPFILTER > 0 if (ifp->if_bpf) BPF_MTAP(ifp, m); #endif DPRINTFN(10,("%s: %s: deliver %d\n", USBDEVNAME(sc->axe_dev), __func__, m->m_len)); IF_INPUT(ifp, m); done1: splx(s); done: /* Setup new transfer. */ usbd_setup_xfer(xfer, sc->axe_ep[AXE_ENDPT_RX], c, c->axe_buf, AXE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, axe_rxeof); usbd_transfer(xfer); DPRINTFN(10,("%s: %s: start rx\n", USBDEVNAME(sc->axe_dev), __func__)); return; } /* * A frame was downloaded to the chip. It's safe for us to clean up * the list buffers. */ Static void axe_txeof(usbd_xfer_handle xfer, usbd_private_handle priv, usbd_status status) { struct axe_softc *sc; struct axe_chain *c; struct ifnet *ifp; int s; c = priv; sc = c->axe_sc; ifp = &sc->arpcom.ac_if; if (sc->axe_dying) return; s = splnet(); if (status != USBD_NORMAL_COMPLETION) { if (status == USBD_NOT_STARTED || status == USBD_CANCELLED) { splx(s); return; } ifp->if_oerrors++; printf("axe%d: usb error on tx: %s\n", sc->axe_unit, usbd_errstr(status)); if (status == USBD_STALLED) usbd_clear_endpoint_stall(sc->axe_ep[AXE_ENDPT_TX]); splx(s); return; } ifp->if_timer = 0; ifp->if_flags &= ~IFF_OACTIVE; m_freem(c->axe_mbuf); c->axe_mbuf = NULL; if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) axe_start(ifp); ifp->if_opackets++; splx(s); return; } Static void axe_tick(void *xsc) { struct axe_softc *sc = xsc; if (sc == NULL) return; DPRINTFN(0xff, ("%s: %s: enter\n", USBDEVNAME(sc->axe_dev), __func__)); if (sc->axe_dying) return; /* Perform periodic stuff in process context */ usb_add_task(sc->axe_udev, &sc->axe_tick_task); } Static void axe_tick_task(void *xsc) { int s; struct axe_softc *sc; struct ifnet *ifp; struct mii_data *mii; sc = xsc; if (sc == NULL) return; if (sc->axe_dying) return; ifp = GET_IFP(sc); mii = GET_MII(sc); if (mii == NULL) return; s = splnet(); mii_tick(mii); if (!sc->axe_link) { mii_pollstat(mii); if (mii->mii_media_status & IFM_ACTIVE && IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) { DPRINTF(("%s: %s: got link\n", USBDEVNAME(sc->axe_dev), __func__)); sc->axe_link++; if (IFQ_IS_EMPTY(&ifp->if_snd) == 0) axe_start(ifp); } } usb_callout(sc->axe_stat_ch, hz, axe_tick, sc); splx(s); } Static int axe_encap(struct axe_softc *sc, struct mbuf *m, int idx) { struct axe_chain *c; usbd_status err; c = &sc->axe_cdata.axe_tx_chain[idx]; /* * Copy the mbuf data into a contiguous buffer, leaving two * bytes at the beginning to hold the frame length. */ m_copydata(m, 0, m->m_pkthdr.len, c->axe_buf); c->axe_mbuf = m; usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_TX], c, c->axe_buf, m->m_pkthdr.len, USBD_FORCE_SHORT_XFER, 10000, axe_txeof); /* Transmit */ err = usbd_transfer(c->axe_xfer); if (err != USBD_IN_PROGRESS) { axe_stop(sc); return(EIO); } sc->axe_cdata.axe_tx_cnt++; return(0); } Static void axe_start(struct ifnet *ifp) { struct axe_softc *sc; struct mbuf *m_head = NULL; sc = ifp->if_softc; if (!sc->axe_link) { return; } if (ifp->if_flags & IFF_OACTIVE) { return; } IF_DEQUEUE(&ifp->if_snd, m_head); if (m_head == NULL) { return; } if (axe_encap(sc, m_head, 0)) { IF_PREPEND(&ifp->if_snd, m_head); ifp->if_flags |= IFF_OACTIVE; return; } /* * If there's a BPF listener, bounce a copy of this frame * to him. */ #if NBPFILTER > 0 if (ifp->if_bpf) BPF_MTAP(ifp, m_head); #endif ifp->if_flags |= IFF_OACTIVE; /* * Set a timeout in case the chip goes out to lunch. */ ifp->if_timer = 5; return; } Static void axe_init(void *xsc) { struct axe_softc *sc = xsc; struct ifnet *ifp = &sc->arpcom.ac_if; struct axe_chain *c; usbd_status err; int rxmode; int i, s; if (ifp->if_flags & IFF_RUNNING) return; s = splnet(); /* * Cancel pending I/O and free all RX/TX buffers. */ axe_reset(sc); /* Enable RX logic. */ /* Init RX ring. */ if (axe_rx_list_init(sc) == ENOBUFS) { printf("axe%d: rx list init failed\n", sc->axe_unit); splx(s); return; } /* Init TX ring. */ if (axe_tx_list_init(sc) == ENOBUFS) { printf("axe%d: tx list init failed\n", sc->axe_unit); splx(s); return; } /* Set transmitter IPG values */ axe_cmd(sc, AXE_CMD_WRITE_IPG0, 0, sc->axe_ipgs[0], NULL); axe_cmd(sc, AXE_CMD_WRITE_IPG1, 0, sc->axe_ipgs[1], NULL); axe_cmd(sc, AXE_CMD_WRITE_IPG2, 0, sc->axe_ipgs[2], NULL); /* Enable receiver, set RX mode */ rxmode = AXE_RXCMD_UNICAST|AXE_RXCMD_MULTICAST|AXE_RXCMD_ENABLE; /* If we want promiscuous mode, set the allframes bit. */ if (ifp->if_flags & IFF_PROMISC) rxmode |= AXE_RXCMD_PROMISC; if (ifp->if_flags & IFF_BROADCAST) rxmode |= AXE_RXCMD_BROADCAST; axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, rxmode, NULL); /* Load the multicast filter. */ axe_setmulti(sc); /* Open RX and TX pipes. */ err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_RX], USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_RX]); if (err) { printf("axe%d: open rx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); splx(s); return; } err = usbd_open_pipe(sc->axe_iface, sc->axe_ed[AXE_ENDPT_TX], USBD_EXCLUSIVE_USE, &sc->axe_ep[AXE_ENDPT_TX]); if (err) { printf("axe%d: open tx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); splx(s); return; } /* Start up the receive pipe. */ for (i = 0; i < AXE_RX_LIST_CNT; i++) { c = &sc->axe_cdata.axe_rx_chain[i]; usbd_setup_xfer(c->axe_xfer, sc->axe_ep[AXE_ENDPT_RX], c, c->axe_buf, AXE_BUFSZ, USBD_SHORT_XFER_OK | USBD_NO_COPY, USBD_NO_TIMEOUT, axe_rxeof); usbd_transfer(c->axe_xfer); } ifp->if_flags |= IFF_RUNNING; ifp->if_flags &= ~IFF_OACTIVE; splx(s); usb_callout_init(sc->axe_stat_ch); usb_callout(sc->axe_stat_ch, hz, axe_tick, sc); return; } Static int axe_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data) { struct axe_softc *sc = ifp->if_softc; struct ifreq *ifr = (struct ifreq *)data; struct ifaddr *ifa = (struct ifaddr *)data; struct mii_data *mii; uWord rxmode; int error = 0; switch(cmd) { case SIOCSIFADDR: ifp->if_flags |= IFF_UP; axe_init(sc); switch (ifa->ifa_addr->sa_family) { #ifdef INET case AF_INET: arp_ifinit(&sc->arpcom, ifa); break; #endif /* INET */ #ifdef NS case AF_NS: { struct ns_addr *ina = &IA_SNS(ifa)->sns_addr; if (ns_nullhost(*ina)) ina->x_host = *(union ns_host *) LLADDR(ifp->if_sadl); else memcpy(LLADDR(ifp->if_sadl), ina->x_host.c_host, ifp->if_addrlen); break; } #endif /* NS */ } break; case SIOCSIFMTU: if (ifr->ifr_mtu > ETHERMTU) error = EINVAL; else ifp->if_mtu = ifr->ifr_mtu; break; case SIOCSIFFLAGS: if (ifp->if_flags & IFF_UP) { if (ifp->if_flags & IFF_RUNNING && ifp->if_flags & IFF_PROMISC && !(sc->axe_if_flags & IFF_PROMISC)) { axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, rxmode); axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, UGETW(rxmode) | AXE_RXCMD_PROMISC, NULL); axe_setmulti(sc); } else if (ifp->if_flags & IFF_RUNNING && !(ifp->if_flags & IFF_PROMISC) && sc->axe_if_flags & IFF_PROMISC) { axe_cmd(sc, AXE_CMD_RXCTL_READ, 0, 0, rxmode); axe_cmd(sc, AXE_CMD_RXCTL_WRITE, 0, UGETW(rxmode) & ~AXE_RXCMD_PROMISC, NULL); axe_setmulti(sc); } else if (!(ifp->if_flags & IFF_RUNNING)) axe_init(sc); } else { if (ifp->if_flags & IFF_RUNNING) axe_stop(sc); } sc->axe_if_flags = ifp->if_flags; error = 0; break; case SIOCADDMULTI: case SIOCDELMULTI: error = (cmd == SIOCADDMULTI) ? ether_addmulti(ifr, &sc->arpcom) : ether_delmulti(ifr, &sc->arpcom); if (error == ENETRESET) { /* * Multicast list has changed; set the hardware * filter accordingly. */ if (ifp->if_flags & IFF_RUNNING) axe_setmulti(sc); error = 0; } break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: mii = GET_MII(sc); error = ifmedia_ioctl(ifp, ifr, &mii->mii_media, cmd); break; default: error = EINVAL; break; } return(error); } Static void axe_watchdog(struct ifnet *ifp) { struct axe_softc *sc; struct axe_chain *c; usbd_status stat; int s; sc = ifp->if_softc; ifp->if_oerrors++; printf("axe%d: watchdog timeout\n", sc->axe_unit); s = splusb(); c = &sc->axe_cdata.axe_tx_chain[0]; usbd_get_xfer_status(c->axe_xfer, NULL, NULL, NULL, &stat); axe_txeof(c->axe_xfer, c, stat); if (ifp->if_snd.ifq_head != NULL) axe_start(ifp); splx(s); } /* * Stop the adapter and free any mbufs allocated to the * RX and TX lists. */ Static void axe_stop(struct axe_softc *sc) { usbd_status err; struct ifnet *ifp; int i; axe_reset(sc); ifp = &sc->arpcom.ac_if; ifp->if_timer = 0; usb_uncallout(sc->axe_stat_ch, axe_tick, sc); /* Stop transfers. */ if (sc->axe_ep[AXE_ENDPT_RX] != NULL) { err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_RX]); if (err) { printf("axe%d: abort rx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_RX]); if (err) { printf("axe%d: close rx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } sc->axe_ep[AXE_ENDPT_RX] = NULL; } if (sc->axe_ep[AXE_ENDPT_TX] != NULL) { err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_TX]); if (err) { printf("axe%d: abort tx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_TX]); if (err) { printf("axe%d: close tx pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } sc->axe_ep[AXE_ENDPT_TX] = NULL; } if (sc->axe_ep[AXE_ENDPT_INTR] != NULL) { err = usbd_abort_pipe(sc->axe_ep[AXE_ENDPT_INTR]); if (err) { printf("axe%d: abort intr pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } err = usbd_close_pipe(sc->axe_ep[AXE_ENDPT_INTR]); if (err) { printf("axe%d: close intr pipe failed: %s\n", sc->axe_unit, usbd_errstr(err)); } sc->axe_ep[AXE_ENDPT_INTR] = NULL; } /* Free RX resources. */ for (i = 0; i < AXE_RX_LIST_CNT; i++) { if (sc->axe_cdata.axe_rx_chain[i].axe_mbuf != NULL) { m_freem(sc->axe_cdata.axe_rx_chain[i].axe_mbuf); sc->axe_cdata.axe_rx_chain[i].axe_mbuf = NULL; } if (sc->axe_cdata.axe_rx_chain[i].axe_xfer != NULL) { usbd_free_xfer(sc->axe_cdata.axe_rx_chain[i].axe_xfer); sc->axe_cdata.axe_rx_chain[i].axe_xfer = NULL; } } /* Free TX resources. */ for (i = 0; i < AXE_TX_LIST_CNT; i++) { if (sc->axe_cdata.axe_tx_chain[i].axe_mbuf != NULL) { m_freem(sc->axe_cdata.axe_tx_chain[i].axe_mbuf); sc->axe_cdata.axe_tx_chain[i].axe_mbuf = NULL; } if (sc->axe_cdata.axe_tx_chain[i].axe_xfer != NULL) { usbd_free_xfer(sc->axe_cdata.axe_tx_chain[i].axe_xfer); sc->axe_cdata.axe_tx_chain[i].axe_xfer = NULL; } } sc->axe_link = 0; ifp->if_flags &= ~(IFF_RUNNING | IFF_OACTIVE); }