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Add flow control for 3C905B and newer controllers. Note, these

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controllers support RX pause only.

Reviewed by:	marius
This commit is contained in:
yongari 2010-11-14 23:53:13 +00:00
parent 5a7162f62d
commit 1bdd9a8607
1 changed files with 19 additions and 6 deletions
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25
sys/dev/xl/if_xl.c
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@ -555,6 +555,7 @@ xl_miibus_statchg(device_t dev)
{
struct xl_softc *sc;
struct mii_data *mii;
uint8_t macctl;
sc = device_get_softc(dev);
mii = device_get_softc(sc->xl_miibus);
@ -563,11 +564,22 @@ xl_miibus_statchg(device_t dev)
/* Set ASIC's duplex mode to match the PHY. */
XL_SEL_WIN(3);
if ((mii->mii_media_active & IFM_GMASK) == IFM_FDX)
CSR_WRITE_1(sc, XL_W3_MAC_CTRL, XL_MACCTRL_DUPLEX);
else
CSR_WRITE_1(sc, XL_W3_MAC_CTRL,
(CSR_READ_1(sc, XL_W3_MAC_CTRL) & ~XL_MACCTRL_DUPLEX));
macctl = CSR_READ_1(sc, XL_W3_MAC_CTRL);
if ((IFM_OPTIONS(mii->mii_media_active) & IFM_FDX) != 0) {
macctl |= XL_MACCTRL_DUPLEX;
if (sc->xl_type == XL_TYPE_905B) {
if ((IFM_OPTIONS(mii->mii_media_active) &
IFM_ETH_RXPAUSE) != 0)
macctl |= XL_MACCTRL_FLOW_CONTROL_ENB;
else
macctl &= ~XL_MACCTRL_FLOW_CONTROL_ENB;
}
} else {
macctl &= ~XL_MACCTRL_DUPLEX;
if (sc->xl_type == XL_TYPE_905B)
macctl &= ~XL_MACCTRL_FLOW_CONTROL_ENB;
}
CSR_WRITE_1(sc, XL_W3_MAC_CTRL, macctl);
}
/*
@ -1464,7 +1476,8 @@ xl_attach(device_t dev)
if ((sc->xl_flags & XL_FLAG_PHYOK) == 0)
phy = 24;
error = mii_attach(dev, &sc->xl_miibus, ifp, xl_ifmedia_upd,
xl_ifmedia_sts, BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY, 0);
xl_ifmedia_sts, BMSR_DEFCAPMASK, phy, MII_OFFSET_ANY,
sc->xl_type == XL_TYPE_905B ? MIIF_DOPAUSE : 0);
if (error != 0) {
device_printf(dev, "attaching PHYs failed\n");
goto fail;