diff --git a/sys/dev/dpaa/if_dtsec.c b/sys/dev/dpaa/if_dtsec.c index 2c0dee05a03f..de5ca75c9a77 100644 --- a/sys/dev/dpaa/if_dtsec.c +++ b/sys/dev/dpaa/if_dtsec.c @@ -1,853 +1,884 @@ /*- * Copyright (c) 2011-2012 Semihalf. * 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. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 THE AUTHOR OR CONTRIBUTORS 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 #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "miibus_if.h" #include #include #include +#include #include #include "fman.h" #include "if_dtsec.h" #include "if_dtsec_im.h" #include "if_dtsec_rm.h" #define DTSEC_MIN_FRAME_SIZE 64 #define DTSEC_MAX_FRAME_SIZE 9600 #define DTSEC_REG_MAXFRM 0x110 +#define DTSEC_REG_GADDR(i) (0x0a0 + 4*(i)) /** * @group dTSEC private defines. * @{ */ /** * dTSEC FMan MAC exceptions info struct. */ struct dtsec_fm_mac_ex_str { const int num; const char *str; }; /** @} */ /** * @group FMan MAC routines. * @{ */ #define DTSEC_MAC_EXCEPTIONS_END (-1) /** * FMan MAC exceptions. */ static const struct dtsec_fm_mac_ex_str dtsec_fm_mac_exceptions[] = { { e_FM_MAC_EX_10G_MDIO_SCAN_EVENTMDIO, "MDIO scan event" }, { e_FM_MAC_EX_10G_MDIO_CMD_CMPL, "MDIO command completion" }, { e_FM_MAC_EX_10G_REM_FAULT, "Remote fault" }, { e_FM_MAC_EX_10G_LOC_FAULT, "Local fault" }, { e_FM_MAC_EX_10G_1TX_ECC_ER, "Transmit frame ECC error" }, { e_FM_MAC_EX_10G_TX_FIFO_UNFL, "Transmit FIFO underflow" }, { e_FM_MAC_EX_10G_TX_FIFO_OVFL, "Receive FIFO overflow" }, { e_FM_MAC_EX_10G_TX_ER, "Transmit frame error" }, { e_FM_MAC_EX_10G_RX_FIFO_OVFL, "Receive FIFO overflow" }, { e_FM_MAC_EX_10G_RX_ECC_ER, "Receive frame ECC error" }, { e_FM_MAC_EX_10G_RX_JAB_FRM, "Receive jabber frame" }, { e_FM_MAC_EX_10G_RX_OVRSZ_FRM, "Receive oversized frame" }, { e_FM_MAC_EX_10G_RX_RUNT_FRM, "Receive runt frame" }, { e_FM_MAC_EX_10G_RX_FRAG_FRM, "Receive fragment frame" }, { e_FM_MAC_EX_10G_RX_LEN_ER, "Receive payload length error" }, { e_FM_MAC_EX_10G_RX_CRC_ER, "Receive CRC error" }, { e_FM_MAC_EX_10G_RX_ALIGN_ER, "Receive alignment error" }, { e_FM_MAC_EX_1G_BAB_RX, "Babbling receive error" }, { e_FM_MAC_EX_1G_RX_CTL, "Receive control (pause frame) interrupt" }, { e_FM_MAC_EX_1G_GRATEFUL_TX_STP_COMPLET, "Graceful transmit stop " "complete" }, { e_FM_MAC_EX_1G_BAB_TX, "Babbling transmit error" }, { e_FM_MAC_EX_1G_TX_CTL, "Transmit control (pause frame) interrupt" }, { e_FM_MAC_EX_1G_TX_ERR, "Transmit error" }, { e_FM_MAC_EX_1G_LATE_COL, "Late collision" }, { e_FM_MAC_EX_1G_COL_RET_LMT, "Collision retry limit" }, { e_FM_MAC_EX_1G_TX_FIFO_UNDRN, "Transmit FIFO underrun" }, { e_FM_MAC_EX_1G_MAG_PCKT, "Magic Packet detected when dTSEC is in " "Magic Packet detection mode" }, { e_FM_MAC_EX_1G_MII_MNG_RD_COMPLET, "MII management read completion" }, { e_FM_MAC_EX_1G_MII_MNG_WR_COMPLET, "MII management write completion" }, { e_FM_MAC_EX_1G_GRATEFUL_RX_STP_COMPLET, "Graceful receive stop " "complete" }, { e_FM_MAC_EX_1G_TX_DATA_ERR, "Internal data error on transmit" }, { e_FM_MAC_EX_1G_RX_DATA_ERR, "Internal data error on receive" }, { e_FM_MAC_EX_1G_1588_TS_RX_ERR, "Time-Stamp Receive Error" }, { e_FM_MAC_EX_1G_RX_MIB_CNT_OVFL, "MIB counter overflow" }, { DTSEC_MAC_EXCEPTIONS_END, "" } }; static const char * dtsec_fm_mac_ex_to_str(e_FmMacExceptions exception) { int i; for (i = 0; dtsec_fm_mac_exceptions[i].num != exception && dtsec_fm_mac_exceptions[i].num != DTSEC_MAC_EXCEPTIONS_END; ++i) ; if (dtsec_fm_mac_exceptions[i].num == DTSEC_MAC_EXCEPTIONS_END) return (""); return (dtsec_fm_mac_exceptions[i].str); } static void dtsec_fm_mac_mdio_event_callback(t_Handle h_App, e_FmMacExceptions exception) { struct dtsec_softc *sc; sc = h_App; device_printf(sc->sc_dev, "MDIO event %i: %s.\n", exception, dtsec_fm_mac_ex_to_str(exception)); } static void dtsec_fm_mac_exception_callback(t_Handle app, e_FmMacExceptions exception) { struct dtsec_softc *sc; sc = app; device_printf(sc->sc_dev, "MAC exception %i: %s.\n", exception, dtsec_fm_mac_ex_to_str(exception)); } static void dtsec_fm_mac_free(struct dtsec_softc *sc) { if (sc->sc_mach == NULL) return; FM_MAC_Disable(sc->sc_mach, e_COMM_MODE_RX_AND_TX); FM_MAC_Free(sc->sc_mach); sc->sc_mach = NULL; } static int dtsec_fm_mac_init(struct dtsec_softc *sc, uint8_t *mac) { t_FmMacParams params; t_Error error; memset(¶ms, 0, sizeof(params)); memcpy(¶ms.addr, mac, sizeof(params.addr)); params.baseAddr = rman_get_bushandle(sc->sc_mem); params.enetMode = sc->sc_mac_enet_mode; params.macId = sc->sc_eth_id; params.mdioIrq = sc->sc_mac_mdio_irq; params.f_Event = dtsec_fm_mac_mdio_event_callback; params.f_Exception = dtsec_fm_mac_exception_callback; params.h_App = sc; params.h_Fm = sc->sc_fmh; sc->sc_mach = FM_MAC_Config(¶ms); if (sc->sc_mach == NULL) { device_printf(sc->sc_dev, "couldn't configure FM_MAC module.\n" ); return (ENXIO); } error = FM_MAC_ConfigResetOnInit(sc->sc_mach, TRUE); if (error != E_OK) { device_printf(sc->sc_dev, "couldn't enable reset on init " "feature.\n"); dtsec_fm_mac_free(sc); return (ENXIO); } /* Do not inform about pause frames */ error = FM_MAC_ConfigException(sc->sc_mach, e_FM_MAC_EX_1G_RX_CTL, FALSE); if (error != E_OK) { device_printf(sc->sc_dev, "couldn't disable pause frames " "exception.\n"); dtsec_fm_mac_free(sc); return (ENXIO); } error = FM_MAC_Init(sc->sc_mach); if (error != E_OK) { device_printf(sc->sc_dev, "couldn't initialize FM_MAC module." "\n"); dtsec_fm_mac_free(sc); return (ENXIO); } return (0); } /** @} */ /** * @group FMan PORT routines. * @{ */ static const char * dtsec_fm_port_ex_to_str(e_FmPortExceptions exception) { switch (exception) { case e_FM_PORT_EXCEPTION_IM_BUSY: return ("IM: RX busy"); default: return (""); } } void dtsec_fm_port_rx_exception_callback(t_Handle app, e_FmPortExceptions exception) { struct dtsec_softc *sc; sc = app; device_printf(sc->sc_dev, "RX exception: %i: %s.\n", exception, dtsec_fm_port_ex_to_str(exception)); } void dtsec_fm_port_tx_exception_callback(t_Handle app, e_FmPortExceptions exception) { struct dtsec_softc *sc; sc = app; device_printf(sc->sc_dev, "TX exception: %i: %s.\n", exception, dtsec_fm_port_ex_to_str(exception)); } e_FmPortType dtsec_fm_port_rx_type(enum eth_dev_type type) { switch (type) { case ETH_DTSEC: return (e_FM_PORT_TYPE_RX); case ETH_10GSEC: return (e_FM_PORT_TYPE_RX_10G); default: return (e_FM_PORT_TYPE_DUMMY); } } e_FmPortType dtsec_fm_port_tx_type(enum eth_dev_type type) { switch (type) { case ETH_DTSEC: return (e_FM_PORT_TYPE_TX); case ETH_10GSEC: return (e_FM_PORT_TYPE_TX_10G); default: return (e_FM_PORT_TYPE_DUMMY); } } static void dtsec_fm_port_free_both(struct dtsec_softc *sc) { if (sc->sc_rxph) { FM_PORT_Free(sc->sc_rxph); sc->sc_rxph = NULL; } if (sc->sc_txph) { FM_PORT_Free(sc->sc_txph); sc->sc_txph = NULL; } } /** @} */ /** * @group IFnet routines. * @{ */ static int dtsec_set_mtu(struct dtsec_softc *sc, unsigned int mtu) { mtu += ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN + ETHER_CRC_LEN; DTSEC_LOCK_ASSERT(sc); if (mtu >= DTSEC_MIN_FRAME_SIZE && mtu <= DTSEC_MAX_FRAME_SIZE) { bus_write_4(sc->sc_mem, DTSEC_REG_MAXFRM, mtu); return (mtu); } return (0); } +static u_int +dtsec_hash_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) +{ + struct dtsec_softc *sc = arg; + + FM_MAC_AddHashMacAddr(sc->sc_mach, (t_EnetAddr *)LLADDR(sdl)); + + return (1); +} + +static void +dtsec_setup_multicast(struct dtsec_softc *sc) +{ + int i; + + if (if_getflags(sc->sc_ifnet) & IFF_ALLMULTI) { + for (i = 0; i < 8; i++) + bus_write_4(sc->sc_mem, DTSEC_REG_GADDR(i), 0xFFFFFFFF); + + return; + } + + fman_dtsec_reset_filter_table(rman_get_virtual(sc->sc_mem), + true, false); + if_foreach_llmaddr(sc->sc_ifnet, dtsec_hash_maddr, sc); +} + static int dtsec_if_enable_locked(struct dtsec_softc *sc) { int error; DTSEC_LOCK_ASSERT(sc); error = FM_MAC_Enable(sc->sc_mach, e_COMM_MODE_RX_AND_TX); if (error != E_OK) return (EIO); error = FM_PORT_Enable(sc->sc_rxph); if (error != E_OK) return (EIO); error = FM_PORT_Enable(sc->sc_txph); if (error != E_OK) return (EIO); + dtsec_setup_multicast(sc); + if_setdrvflagbits(sc->sc_ifnet, IFF_DRV_RUNNING, 0); /* Refresh link state */ dtsec_miibus_statchg(sc->sc_dev); return (0); } static int dtsec_if_disable_locked(struct dtsec_softc *sc) { int error; DTSEC_LOCK_ASSERT(sc); error = FM_MAC_Disable(sc->sc_mach, e_COMM_MODE_RX_AND_TX); if (error != E_OK) return (EIO); error = FM_PORT_Disable(sc->sc_rxph); if (error != E_OK) return (EIO); error = FM_PORT_Disable(sc->sc_txph); if (error != E_OK) return (EIO); if_setdrvflagbits(sc->sc_ifnet, 0, IFF_DRV_RUNNING); return (0); } static int dtsec_if_ioctl(if_t ifp, u_long command, caddr_t data) { struct dtsec_softc *sc; struct ifreq *ifr; int error; sc = if_getsoftc(ifp); ifr = (struct ifreq *)data; error = 0; /* Basic functionality to achieve media status reports */ switch (command) { case SIOCSIFMTU: DTSEC_LOCK(sc); if (dtsec_set_mtu(sc, ifr->ifr_mtu)) if_setmtu(ifp, ifr->ifr_mtu); else error = EINVAL; DTSEC_UNLOCK(sc); break; case SIOCSIFFLAGS: DTSEC_LOCK(sc); if (if_getflags(sc->sc_ifnet) & IFF_UP) error = dtsec_if_enable_locked(sc); else error = dtsec_if_disable_locked(sc); DTSEC_UNLOCK(sc); break; case SIOCGIFMEDIA: case SIOCSIFMEDIA: error = ifmedia_ioctl(ifp, ifr, &sc->sc_mii->mii_media, command); break; default: error = ether_ioctl(ifp, command, data); } return (error); } static void dtsec_if_tick(void *arg) { struct dtsec_softc *sc; sc = arg; /* TODO */ DTSEC_LOCK(sc); mii_tick(sc->sc_mii); callout_reset(&sc->sc_tick_callout, hz, dtsec_if_tick, sc); DTSEC_UNLOCK(sc); } static void dtsec_if_deinit_locked(struct dtsec_softc *sc) { DTSEC_LOCK_ASSERT(sc); DTSEC_UNLOCK(sc); callout_drain(&sc->sc_tick_callout); DTSEC_LOCK(sc); } static void dtsec_if_init_locked(struct dtsec_softc *sc) { int error; DTSEC_LOCK_ASSERT(sc); /* Set MAC address */ error = FM_MAC_ModifyMacAddr(sc->sc_mach, (t_EnetAddr *)if_getlladdr(sc->sc_ifnet)); if (error != E_OK) { device_printf(sc->sc_dev, "couldn't set MAC address.\n"); goto err; } /* Start MII polling */ if (sc->sc_mii) callout_reset(&sc->sc_tick_callout, hz, dtsec_if_tick, sc); if (if_getflags(sc->sc_ifnet) & IFF_UP) { error = dtsec_if_enable_locked(sc); if (error != 0) goto err; } else { error = dtsec_if_disable_locked(sc); if (error != 0) goto err; } return; err: dtsec_if_deinit_locked(sc); device_printf(sc->sc_dev, "initialization error.\n"); return; } static void dtsec_if_init(void *data) { struct dtsec_softc *sc; sc = data; DTSEC_LOCK(sc); dtsec_if_init_locked(sc); DTSEC_UNLOCK(sc); } static void dtsec_if_start(if_t ifp) { struct dtsec_softc *sc; sc = if_getsoftc(ifp); DTSEC_LOCK(sc); sc->sc_start_locked(sc); DTSEC_UNLOCK(sc); } static void dtsec_if_watchdog(if_t ifp) { /* TODO */ } /** @} */ /** * @group IFmedia routines. * @{ */ static int dtsec_ifmedia_upd(if_t ifp) { struct dtsec_softc *sc = if_getsoftc(ifp); DTSEC_LOCK(sc); mii_mediachg(sc->sc_mii); DTSEC_UNLOCK(sc); return (0); } static void dtsec_ifmedia_sts(if_t ifp, struct ifmediareq *ifmr) { struct dtsec_softc *sc = if_getsoftc(ifp); DTSEC_LOCK(sc); mii_pollstat(sc->sc_mii); ifmr->ifm_active = sc->sc_mii->mii_media_active; ifmr->ifm_status = sc->sc_mii->mii_media_status; DTSEC_UNLOCK(sc); } /** @} */ /** * @group dTSEC bus interface. * @{ */ static void dtsec_configure_mode(struct dtsec_softc *sc) { char tunable[64]; snprintf(tunable, sizeof(tunable), "%s.independent_mode", device_get_nameunit(sc->sc_dev)); sc->sc_mode = DTSEC_MODE_REGULAR; TUNABLE_INT_FETCH(tunable, &sc->sc_mode); if (sc->sc_mode == DTSEC_MODE_REGULAR) { sc->sc_port_rx_init = dtsec_rm_fm_port_rx_init; sc->sc_port_tx_init = dtsec_rm_fm_port_tx_init; sc->sc_start_locked = dtsec_rm_if_start_locked; } else { sc->sc_port_rx_init = dtsec_im_fm_port_rx_init; sc->sc_port_tx_init = dtsec_im_fm_port_tx_init; sc->sc_start_locked = dtsec_im_if_start_locked; } device_printf(sc->sc_dev, "Configured for %s mode.\n", (sc->sc_mode == DTSEC_MODE_REGULAR) ? "regular" : "independent"); } int dtsec_attach(device_t dev) { struct dtsec_softc *sc; device_t parent; int error; if_t ifp; sc = device_get_softc(dev); parent = device_get_parent(dev); sc->sc_dev = dev; sc->sc_mac_mdio_irq = NO_IRQ; /* Check if MallocSmart allocator is ready */ if (XX_MallocSmartInit() != E_OK) return (ENXIO); /* Init locks */ mtx_init(&sc->sc_lock, device_get_nameunit(dev), "DTSEC Global Lock", MTX_DEF); mtx_init(&sc->sc_mii_lock, device_get_nameunit(dev), "DTSEC MII Lock", MTX_DEF); /* Init callouts */ callout_init(&sc->sc_tick_callout, CALLOUT_MPSAFE); /* Read configuraton */ if ((error = fman_get_handle(parent, &sc->sc_fmh)) != 0) return (error); if ((error = fman_get_muram_handle(parent, &sc->sc_muramh)) != 0) return (error); if ((error = fman_get_bushandle(parent, &sc->sc_fm_base)) != 0) return (error); /* Configure working mode */ dtsec_configure_mode(sc); /* If we are working in regular mode configure BMAN and QMAN */ if (sc->sc_mode == DTSEC_MODE_REGULAR) { /* Create RX buffer pool */ error = dtsec_rm_pool_rx_init(sc); if (error != 0) return (EIO); /* Create RX frame queue range */ error = dtsec_rm_fqr_rx_init(sc); if (error != 0) return (EIO); /* Create frame info pool */ error = dtsec_rm_fi_pool_init(sc); if (error != 0) return (EIO); /* Create TX frame queue range */ error = dtsec_rm_fqr_tx_init(sc); if (error != 0) return (EIO); } /* Init FMan MAC module. */ error = dtsec_fm_mac_init(sc, sc->sc_mac_addr); if (error != 0) { dtsec_detach(dev); return (ENXIO); } /* Init FMan TX port */ error = sc->sc_port_tx_init(sc, device_get_unit(sc->sc_dev)); if (error != 0) { dtsec_detach(dev); return (ENXIO); } /* Init FMan RX port */ error = sc->sc_port_rx_init(sc, device_get_unit(sc->sc_dev)); if (error != 0) { dtsec_detach(dev); return (ENXIO); } /* Create network interface for upper layers */ ifp = sc->sc_ifnet = if_alloc(IFT_ETHER); if (ifp == NULL) { device_printf(sc->sc_dev, "if_alloc() failed.\n"); dtsec_detach(dev); return (ENOMEM); } if_setsoftc(ifp, sc); - if_setflags(ifp, IFF_SIMPLEX | IFF_BROADCAST); + if_setflags(ifp, IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST); if_setinitfn(ifp, dtsec_if_init); if_setstartfn(ifp, dtsec_if_start); if_setioctlfn(ifp, dtsec_if_ioctl); if_setsendqlen(ifp, IFQ_MAXLEN); if (sc->sc_phy_addr >= 0) if_initname(ifp, device_get_name(sc->sc_dev), device_get_unit(sc->sc_dev)); else if_initname(ifp, "dtsec_phy", device_get_unit(sc->sc_dev)); /* TODO */ #if 0 if_setsendqlen(ifp, TSEC_TX_NUM_DESC - 1); if_setsendqready(ifp); #endif if_setcapenable(ifp, if_getcapabilities(ifp)); /* Attach PHY(s) */ error = mii_attach(sc->sc_dev, &sc->sc_mii_dev, ifp, dtsec_ifmedia_upd, dtsec_ifmedia_sts, BMSR_DEFCAPMASK, sc->sc_phy_addr, MII_OFFSET_ANY, 0); if (error) { device_printf(sc->sc_dev, "attaching PHYs failed: %d\n", error); dtsec_detach(sc->sc_dev); return (error); } sc->sc_mii = device_get_softc(sc->sc_mii_dev); /* Attach to stack */ ether_ifattach(ifp, sc->sc_mac_addr); return (0); } int dtsec_detach(device_t dev) { struct dtsec_softc *sc; if_t ifp; sc = device_get_softc(dev); ifp = sc->sc_ifnet; if (device_is_attached(dev)) { ether_ifdetach(ifp); /* Shutdown interface */ DTSEC_LOCK(sc); dtsec_if_deinit_locked(sc); DTSEC_UNLOCK(sc); } if (sc->sc_ifnet) { if_free(sc->sc_ifnet); sc->sc_ifnet = NULL; } if (sc->sc_mode == DTSEC_MODE_REGULAR) { /* Free RX/TX FQRs */ dtsec_rm_fqr_rx_free(sc); dtsec_rm_fqr_tx_free(sc); /* Free frame info pool */ dtsec_rm_fi_pool_free(sc); /* Free RX buffer pool */ dtsec_rm_pool_rx_free(sc); } dtsec_fm_mac_free(sc); dtsec_fm_port_free_both(sc); /* Destroy lock */ mtx_destroy(&sc->sc_lock); return (0); } int dtsec_suspend(device_t dev) { return (0); } int dtsec_resume(device_t dev) { return (0); } int dtsec_shutdown(device_t dev) { return (0); } /** @} */ /** * @group MII bus interface. * @{ */ int dtsec_miibus_readreg(device_t dev, int phy, int reg) { struct dtsec_softc *sc; sc = device_get_softc(dev); return (MIIBUS_READREG(sc->sc_mdio, phy, reg)); } int dtsec_miibus_writereg(device_t dev, int phy, int reg, int value) { struct dtsec_softc *sc; sc = device_get_softc(dev); return (MIIBUS_WRITEREG(sc->sc_mdio, phy, reg, value)); } void dtsec_miibus_statchg(device_t dev) { struct dtsec_softc *sc; e_EnetSpeed speed; bool duplex; int error; sc = device_get_softc(dev); DTSEC_LOCK_ASSERT(sc); duplex = ((sc->sc_mii->mii_media_active & IFM_GMASK) == IFM_FDX); switch (IFM_SUBTYPE(sc->sc_mii->mii_media_active)) { case IFM_1000_T: case IFM_1000_SX: speed = e_ENET_SPEED_1000; break; case IFM_100_TX: speed = e_ENET_SPEED_100; break; case IFM_10_T: speed = e_ENET_SPEED_10; break; default: speed = e_ENET_SPEED_10; } error = FM_MAC_AdjustLink(sc->sc_mach, speed, duplex); if (error != E_OK) device_printf(sc->sc_dev, "error while adjusting MAC speed.\n"); } /** @} */