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Apply special PHY initialization code for 21143 controllers before

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any other media configuration. Otherwise some 21143 controller
cannot establish a link. While I'm here remove the PHY
initialization code in dc_setcfg(). Since dc_setcfg() is called
whenever link state is changed, having the PHY initialization code
in dc_setcfg() resulted in continuous link flips.
After driver resets SIA, use default SIA transmit/receive
configuration instead of disabling autosense/autonegotiation.
Otherwise, controller fails to establish a link as well as losing
auto-negotiation capability. For manual media configuration, always
configure 21143 controller with specified media to ensure media
change. This change makes ANA-6922 establish link with/without
auto-negotiation.

While I'm here be more strict on link UP/DOWN detection logic.

Many thanks to marius who fixed several bugs in initial patch and
even tested the patch on a couple of dc(4) controllers.

PR:		kern/79262
Reviewed by:	marius
Tested by:	marius
This commit is contained in:
Pyun YongHyeon 2011-02-18 02:58:09 +00:00
parent b289c60720
commit d314ebf548
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=218788
1 changed files with 42 additions and 31 deletions
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73
sys/dev/dc/if_dc.c
View File

@ -944,23 +944,45 @@ static void
dc_miibus_statchg(device_t dev)
{
struct dc_softc *sc;
struct ifnet *ifp;
struct mii_data *mii;
struct ifmedia *ifm;
sc = device_get_softc(dev);
if (DC_IS_ADMTEK(sc))
return;
mii = device_get_softc(sc->dc_miibus);
ifp = sc->dc_ifp;
if (mii == NULL || ifp == NULL ||
(ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
return;
ifm = &mii->mii_media;
if (DC_IS_DAVICOM(sc) &&
IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1) {
dc_setcfg(sc, ifm->ifm_media);
sc->dc_if_media = ifm->ifm_media;
} else {
dc_setcfg(sc, mii->mii_media_active);
sc->dc_if_media = mii->mii_media_active;
return;
}
sc->dc_link = 0;
if ((mii->mii_media_status & (IFM_ACTIVE | IFM_AVALID)) ==
(IFM_ACTIVE | IFM_AVALID)) {
switch (IFM_SUBTYPE(mii->mii_media_active)) {
case IFM_10_T:
case IFM_100_TX:
sc->dc_link = 1;
break;
default:
break;
}
}
if (sc->dc_link == 0)
return;
sc->dc_if_media = mii->mii_media_active;
if (DC_IS_ADMTEK(sc))
return;
dc_setcfg(sc, mii->mii_media_active);
}
/*
@ -1404,8 +1426,6 @@ dc_setcfg(struct dc_softc *sc, int media)
if (!DC_IS_DAVICOM(sc))
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF);
if (DC_IS_INTEL(sc))
dc_apply_fixup(sc, IFM_AUTO);
} else {
if (DC_IS_PNIC(sc)) {
DC_PN_GPIO_SETBIT(sc, DC_PN_GPIO_SPEEDSEL);
@ -1415,10 +1435,6 @@ dc_setcfg(struct dc_softc *sc, int media)
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PCS);
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_SCRAMBLER);
if (DC_IS_INTEL(sc))
dc_apply_fixup(sc,
(media & IFM_GMASK) == IFM_FDX ?
IFM_100_TX | IFM_FDX : IFM_100_TX);
}
}
@ -1442,8 +1458,6 @@ dc_setcfg(struct dc_softc *sc, int media)
if (!DC_IS_DAVICOM(sc))
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_PORTSEL);
DC_CLRBIT(sc, DC_10BTCTRL, 0xFFFF);
if (DC_IS_INTEL(sc))
dc_apply_fixup(sc, IFM_AUTO);
} else {
if (DC_IS_PNIC(sc)) {
DC_PN_GPIO_CLRBIT(sc, DC_PN_GPIO_SPEEDSEL);
@ -1463,9 +1477,6 @@ dc_setcfg(struct dc_softc *sc, int media)
DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET);
DC_CLRBIT(sc, DC_10BTCTRL,
DC_TCTL_AUTONEGENBL);
dc_apply_fixup(sc,
(media & IFM_GMASK) == IFM_FDX ?
IFM_10_T | IFM_FDX : IFM_10_T);
DELAY(20000);
}
}
@ -1537,7 +1548,7 @@ dc_reset(struct dc_softc *sc)
*/
if (DC_IS_INTEL(sc)) {
DC_SETBIT(sc, DC_SIARESET, DC_SIA_RESET);
CSR_WRITE_4(sc, DC_10BTCTRL, 0);
CSR_WRITE_4(sc, DC_10BTCTRL, 0xFFFFFFFF);
CSR_WRITE_4(sc, DC_WATCHDOG, 0);
}
}
@ -2963,11 +2974,8 @@ dc_tick(void *xsc)
*/
if ((DC_HAS_BROKEN_RXSTATE(sc) || (CSR_READ_4(sc,
DC_ISR) & DC_ISR_RX_STATE) == DC_RXSTATE_WAIT) &&
sc->dc_cdata.dc_tx_cnt == 0) {
sc->dc_cdata.dc_tx_cnt == 0)
mii_tick(mii);
if (!(mii->mii_media_status & IFM_ACTIVE))
sc->dc_link = 0;
}
}
} else
mii_tick(mii);
@ -2991,12 +2999,8 @@ dc_tick(void *xsc)
* that time, packets will stay in the send queue, and once the
* link comes up, they will be flushed out to the wire.
*/
if (!sc->dc_link && mii->mii_media_status & IFM_ACTIVE &&
IFM_SUBTYPE(mii->mii_media_active) != IFM_NONE) {
sc->dc_link++;
if (!IFQ_DRV_IS_EMPTY(&ifp->if_snd))
dc_start_locked(ifp);
}
if (sc->dc_link != 0 && !IFQ_DRV_IS_EMPTY(&ifp->if_snd))
dc_start_locked(ifp);
if (sc->dc_flags & DC_21143_NWAY && !sc->dc_link)
callout_reset(&sc->dc_stat_ch, hz/10, dc_tick, sc);
@ -3421,6 +3425,7 @@ dc_init_locked(struct dc_softc *sc)
{
struct ifnet *ifp = sc->dc_ifp;
struct mii_data *mii;
struct ifmedia *ifm;
DC_LOCK_ASSERT(sc);
@ -3431,6 +3436,10 @@ dc_init_locked(struct dc_softc *sc)
*/
dc_stop(sc);
dc_reset(sc);
if (DC_IS_INTEL(sc)) {
ifm = &mii->mii_media;
dc_apply_fixup(sc, ifm->ifm_media);
}
/*
* Set cache alignment and burst length.
@ -3574,12 +3583,12 @@ dc_init_locked(struct dc_softc *sc)
DC_SETBIT(sc, DC_NETCFG, DC_NETCFG_RX_ON);
CSR_WRITE_4(sc, DC_RXSTART, 0xFFFFFFFF);
mii_mediachg(mii);
dc_setcfg(sc, sc->dc_if_media);
ifp->if_drv_flags |= IFF_DRV_RUNNING;
ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
mii_mediachg(mii);
dc_setcfg(sc, sc->dc_if_media);
/* Don't start the ticker if this is a homePNA link. */
if (IFM_SUBTYPE(mii->mii_media.ifm_media) == IFM_HPNA_1)
sc->dc_link = 1;
@ -3610,7 +3619,9 @@ dc_ifmedia_upd(struct ifnet *ifp)
mii_mediachg(mii);
ifm = &mii->mii_media;
if (DC_IS_DAVICOM(sc) &&
if (DC_IS_INTEL(sc))
dc_setcfg(sc, ifm->ifm_media);
else if (DC_IS_DAVICOM(sc) &&
IFM_SUBTYPE(ifm->ifm_media) == IFM_HPNA_1)
dc_setcfg(sc, ifm->ifm_media);
else